From 03f81788aba236040e9136a058650c2a2911734d Mon Sep 17 00:00:00 2001
From: thkim <thkim@dbnt.co.kr>
Date: Mon, 10 Jun 2024 18:00:23 +0900
Subject: [PATCH] =?UTF-8?q?=EB=A1=9C=EA=B7=B8=EC=9D=B8=20=ED=99=94?=
 =?UTF-8?q?=EB=A9=B4=20=EB=B3=80=EA=B2=BD=20=EC=A4=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .classpath_sample                             |      1 +
 .../WEB-INF/views/home/include/header.jsp     |    327 +-
 src/main/webapp/WEB-INF/views/home/index.jsp  |      4 +
 src/main/webapp/com/css/apply.bat             |      2 +
 src/main/webapp/com/css/builtCSS.lnk          |    Bin 0 -> 2511 bytes
 src/main/webapp/com/css/common.v2.0.css       |   4306 +-
 src/main/webapp/com/css/common.v2.0.css.map   |      1 +
 src/main/webapp/com/css/sass/build.bat        |      1 +
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 .../sass/types/logger/source_span.d.ts        |     34 +
 .../sass/node_modules/sass/types/options.d.ts |    455 +
 .../sass/types/util/promise_or.d.ts           |     17 +
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 .../sass/types/value/boolean.d.ts             |     29 +
 .../sass/types/value/calculation.d.ts         |    137 +
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 .../source-map-js/lib/source-map-generator.js |    444 +
 .../source-map-js/lib/source-node.js          |    413 +
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 .../source-map-js/source-map.d.ts             |    115 +
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 .../img/main/signin/ordering_organization.svg |      1 +
 .../signin/ordering_organization_white.svg    |     50 +
 160 files changed, 168588 insertions(+), 2030 deletions(-)
 create mode 100644 src/main/webapp/com/css/apply.bat
 create mode 100644 src/main/webapp/com/css/builtCSS.lnk
 create mode 100644 src/main/webapp/com/css/common.v2.0.css.map
 create mode 100644 src/main/webapp/com/css/sass/build.bat
 create mode 100644 src/main/webapp/com/css/sass/common.v2.0.scss
 create mode 100644 src/main/webapp/com/css/sass/node_modules/.bin/sass
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 create mode 100644 src/main/webapp/com/css/sass/node_modules/sass/types/value/mixin.d.ts
 create mode 100644 src/main/webapp/com/css/sass/node_modules/sass/types/value/number.d.ts
 create mode 100644 src/main/webapp/com/css/sass/node_modules/sass/types/value/string.d.ts
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/LICENSE
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/README.md
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/array-set.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64-vlq.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/binary-search.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/mapping-list.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/quick-sort.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-consumer.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-generator.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-node.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/lib/util.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/package.json
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.d.ts
 create mode 100644 src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/to-regex-range/LICENSE
 create mode 100644 src/main/webapp/com/css/sass/node_modules/to-regex-range/README.md
 create mode 100644 src/main/webapp/com/css/sass/node_modules/to-regex-range/index.js
 create mode 100644 src/main/webapp/com/css/sass/node_modules/to-regex-range/package.json
 create mode 100644 src/main/webapp/com/css/sass/package-lock.json
 create mode 100644 src/main/webapp/com/css/sass/package.json
 create mode 100644 src/main/webapp/com/img/main/signin/corporate_user.svg
 create mode 100644 src/main/webapp/com/img/main/signin/corporate_user_white.svg
 create mode 100644 src/main/webapp/com/img/main/signin/ico_map_guide_list_expert.png
 create mode 100644 src/main/webapp/com/img/main/signin/individual_user.svg
 create mode 100644 src/main/webapp/com/img/main/signin/individual_user_white.svg
 create mode 100644 src/main/webapp/com/img/main/signin/ordering_organization.svg
 create mode 100644 src/main/webapp/com/img/main/signin/ordering_organization_white.svg

diff --git a/.classpath_sample b/.classpath_sample
index 6e6324f2..8c6f58b1 100644
--- a/.classpath_sample
+++ b/.classpath_sample
@@ -51,5 +51,6 @@
 	<classpathentry kind="lib" path="src/main/webapp/WEB-INF/lib/gt-shapefile-14.5.jar"/>
 	<classpathentry kind="lib" path="src/main/webapp/WEB-INF/lib/OpenXLS.jar"/>
 	<classpathentry kind="lib" path="src/main/webapp/WEB-INF/lib/OrgService.jar"/>
+    <classpathentry kind="lib" path="src/main/webapp/WEB-INF/lib/ICERTSecu_JDK18.jar"/>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/src/main/webapp/WEB-INF/views/home/include/header.jsp b/src/main/webapp/WEB-INF/views/home/include/header.jsp
index 89dd3e77..fbc88f76 100644
--- a/src/main/webapp/WEB-INF/views/home/include/header.jsp
+++ b/src/main/webapp/WEB-INF/views/home/include/header.jsp
@@ -6,97 +6,131 @@
 
 <head>
 
-	<title>국토지반정보 포털시스템</title>
+<title>국토지반정보 포털시스템</title>
 
-	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<%-- <link href="${pageContext.request.contextPath}/css/hn1.css" rel="stylesheet" type="text/css"> --%>
-	<script language=JavaScript src="${pageContext.request.contextPath}/js/home/script.js"></script>
-	<script language=JavaScript src="${pageContext.request.contextPath}/js/home/index.js"></script>
-	<script src="${pageContext.request.contextPath}/js/jquery/jquery.min.js" language=javascript></script>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<%-- <link href="${pageContext.request.contextPath}/css/hn1.css" rel="stylesheet" type="text/css"> --%>
+<script language=JavaScript
+	src="${pageContext.request.contextPath}/js/home/script.js"></script>
+<script language=JavaScript
+	src="${pageContext.request.contextPath}/js/home/index.js"></script>
+<script src="${pageContext.request.contextPath}/js/jquery/jquery.min.js"
+	language=javascript></script>
 
-	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
-	<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1" />
-	<meta name="author" content="건설기술연구원" />
-	<!-- description -->
-	<meta name="description" content="국토지반정보" />
-	<!-- keywords -->
-	<meta name="keywords" content="" />
-	<!-- favicon -->
-	<link rel="shortcut icon" href="${pageContext.request.contextPath}/com/img/common/icon/favicon.ico" />
+<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+<meta name="viewport"
+	content="width=device-width,initial-scale=1.0,maximum-scale=1" />
+<meta name="author" content="건설기술연구원" />
+<!-- description -->
+<meta name="description" content="국토지반정보" />
+<!-- keywords -->
+<meta name="keywords" content="" />
+<!-- favicon -->
+<link rel="shortcut icon"
+	href="${pageContext.request.contextPath}/com/img/common/icon/favicon.ico" />
 
-	<!-- ==============================================================
+<!-- ==============================================================
 		플러그인
 	============================================================== -->
-	<!-- 라이브러리 -->
-	<!-- <script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.js"></script> -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/bootstrap.min.js"></script>
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/bootstrap.min.css" />
+<!-- 라이브러리 -->
+<!-- <script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.js"></script> -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/bootstrap.min.js"></script>
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/bootstrap.min.css" />
 
-	<!-- 브라우저 지원여부 판단 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/modernizr.js"></script>
+<!-- 브라우저 지원여부 판단 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/modernizr.js"></script>
 
-	<!-- 메뉴관련 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.nav.js"></script>
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/bootsnav.js"></script>
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/bootsnav.css" />
+<!-- 메뉴관련 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/jquery.nav.js"></script>
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/bootsnav.js"></script>
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/bootsnav.css" />
 
-	<!-- 애니메이션 관련 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.easing.1.3.js"></script>
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/wow.min.js"></script>
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/animate.css" />
+<!-- 애니메이션 관련 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/jquery.easing.1.3.js"></script>
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/wow.min.js"></script>
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/animate.css" />
 
-	<!-- 스크롤시 컨텐츠와 비쥬얼의 움직임 (parallax) -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.stellar.js"></script>
+<!-- 스크롤시 컨텐츠와 비쥬얼의 움직임 (parallax) -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/jquery.stellar.js"></script>
 
-	<!-- 레이어 모달 팝업 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.magnific-popup.min.js"></script>
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/magnific-popup.css" />
+<!-- 레이어 모달 팝업 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/jquery.magnific-popup.min.js"></script>
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/magnific-popup.css" />
 
-	<!-- 이미지 로드 감지 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/imagesloaded.pkgd.min.js"></script>
+<!-- 이미지 로드 감지 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/imagesloaded.pkgd.min.js"></script>
 
-	<!-- 슬라이드 메뉴 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/classie.js"></script>
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/hamburger-menu.js"></script>
+<!-- 슬라이드 메뉴 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/classie.js"></script>
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/hamburger-menu.js"></script>
 
-	<!-- 비주얼 스크롤시 움직임 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/counter.js"></script>
+<!-- 비주얼 스크롤시 움직임 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/counter.js"></script>
 
-	<!-- 브라우저 리사이즈 이벤트 -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/equalize.min.js"></script>
+<!-- 브라우저 리사이즈 이벤트 -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/equalize.min.js"></script>
 
-	<!-- icon -->
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/et-line-icons.css" />
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/font-awesome.min.css" />
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/plugins/themify-icons.css" />
+<!-- icon -->
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/et-line-icons.css" />
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/font-awesome.min.css" />
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/plugins/themify-icons.css" />
 
-	<!-- 메인에서만 counter -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/plugins/jquery.count-to.js"></script>
-	<!-- 메인에서만 FlexSlider -->
-	<link href="${pageContext.request.contextPath}/com/plugins/flex-slider-2/css/flexslider.css" rel="stylesheet" type="text/css" />
-	<script src="${pageContext.request.contextPath}/com/plugins/flex-slider-2/js/jquery.flexslider.js"></script>
-	<script src="${pageContext.request.contextPath}/com/plugins/flex-slider-2/js/jquery.easing.js"></script>
-	<script src="${pageContext.request.contextPath}/com/plugins/flex-slider-2/js/jquery.mousewheel.js"></script>
+<!-- 메인에서만 counter -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/plugins/jquery.count-to.js"></script>
+<!-- 메인에서만 FlexSlider -->
+<link
+	href="${pageContext.request.contextPath}/com/plugins/flex-slider-2/css/flexslider.css"
+	rel="stylesheet" type="text/css" />
+<script
+	src="${pageContext.request.contextPath}/com/plugins/flex-slider-2/js/jquery.flexslider.js"></script>
+<script
+	src="${pageContext.request.contextPath}/com/plugins/flex-slider-2/js/jquery.easing.js"></script>
+<script
+	src="${pageContext.request.contextPath}/com/plugins/flex-slider-2/js/jquery.mousewheel.js"></script>
 
-	<!-- ==============================================================
+<!-- ==============================================================
 		공통 커스텀
 	============================================================== -->
-	<!-- 공통 script -->
-	<script type="text/javascript" src="${pageContext.request.contextPath}/com/js/common.js?v=20240527_1042"></script>
+<!-- 공통 script -->
+<script type="text/javascript"
+	src="${pageContext.request.contextPath}/com/js/common.js"></script>
 
-	<!-- 스타일 css -->
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/css/style.css" />
+<!-- 스타일 css -->
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/css/style.css" />
 
-	<!-- 전체 조합 css -->
-	<link rel="stylesheet" href="${pageContext.request.contextPath}/com/css/common.v2.0.css" />
+<!-- 전체 조합 css -->
+<link rel="stylesheet"
+	href="${pageContext.request.contextPath}/com/css/common.v2.0.css?v=20240610_1348" />
 
-	<!-- ==============================================================
+<!-- ==============================================================
 		IE9 HTML5 일부지원
 	============================================================== -->
-	<!--[if IE]>
+<!--[if IE]>
 		<script src="${pageContext.request.contextPath}/com/plugins/html5shiv.js"></script>
 	<![endif]-->
-	<!--[if IE]>
+<!--[if IE]>
 		<link rel="stylesheet" href="${pageContext.request.contextPath}/com/css/common-ie.css" />
 	<![endif]-->
 
@@ -115,26 +149,28 @@
 		login();
 	}
 
-	function login(){
-		if (document.login.id.value == ""){
+	function login() {
+		if (document.login.id.value == "") {
 			alert('아이디를 입력하여 주시기 바랍니다.');
 			document.login.id.focus();
 			return true;
-		}else if (document.login.pass.value == ""){
+		} else if (document.login.pass.value == "") {
 			alert('비밀번호를 입력하여 주시기 바랍니다.');
 			document.login.pass.focus();
 			return true;
-		}else{
-			document.login.login_param.value = timeNow() + hex_md4(document.login.pass.value).substring(0,20)+encode64(document.login.id.value)+" " + timeNow2();
+		} else {
+			document.login.login_param.value = timeNow()
+					+ hex_md4(document.login.pass.value).substring(0, 20)
+					+ encode64(document.login.id.value) + " " + timeNow2();
 			document.login.action = "login.do?location=index";
 			document.login.submit();
 		}
 	}
 
-	$(document).ready(function(){
+	$(document).ready(function() {
 		//익스플로어 일때 "ie"클래스 추가
 		var ua = window.navigator.userAgent;
-		if(ua.indexOf('MSIE ') > 0 || ua.indexOf('Trident/') > 0){ //윈도우 10까지는 MSIE 윈도우 11부터는 Trident/를 사용한다.
+		if (ua.indexOf('MSIE ') > 0 || ua.indexOf('Trident/') > 0) { //윈도우 10까지는 MSIE 윈도우 11부터는 Trident/를 사용한다.
 			//document.body.classList.add("ie");
 			document.documentElement.classList.add("ie");
 		}
@@ -145,86 +181,83 @@
 	}
 
 	function personalinfo() {
-		var personalinfo = window.open("personalinfo.do", "personalinfo", "title=no,toolbar=no,scrollbars=yes,width=800,height=800,left=50,top=50");
+		var personalinfo = window
+				.open("personalinfo.do", "personalinfo",
+						"title=no,toolbar=no,scrollbars=yes,width=800,height=800,left=50,top=50");
 		personalinfo.focus();
 	}
 
 	function comPop() {
-		var comPopWin = window.open("information_info.do", "comPopWin", "title=no,toolbar=no,scrollbars=yes,width=718,height=800,left=50,top=50");
+		var comPopWin = window
+				.open("information_info.do", "comPopWin",
+						"title=no,toolbar=no,scrollbars=yes,width=718,height=800,left=50,top=50");
 		comPopWin.focus();
 	}
-
 </script>
 <!-- 로그인 시작 -->
 <div id="login" class="login-popup mfp-hide">
 	<form name="login" method="post">
 		<input type="hidden" name="login_param" value="">
 
-		<h1 class="contents-title"><span class="contents-title-text">로그인</span></h1>
+		<h1 class="contents-title">로그인</h1>
 		<div class="t-center">
-			<style>
-				.account-type-wrapper {
-				}
-				.account-type-wrapper > p {
-					width: 100%;
-					display: block;
-					font-size: 24px;
-					margin-bottom: 20px;
-				}
-				.account-type-wrapper > ul {
-					width: 100%;
-					display: block;
-				}
-				.account-type-wrapper > ul > li {
-					width: 32.4%;
-					display: inline-block;
-					height: 130px;
-					line-height: 130px;
-					border: 1px solid #222222;
-					font-size: 40px;
-					cursor: pointer;
-
-				}
-
-				.account-type-wrapper > ul > li:hover {
-					background: #222222;
-					color: #ffffff;
-
-				}
-			</style>
 			<div class="account-type-wrapper" id="account-type-wrapper">
-				<p>계정 유형 선택</p>
+				<p>회원 유형을 선택해주세요.</p>
 				<ul>
-					<li id="cls-button-0">개인</li>
-					<li id="cls-button-1">기업</li>
-					<li id="cls-button-2">발주청</li>
+					<li id="cls-button-0">
+						<div>
+							<div class="icons individual-user" />
+						</div>
+						<div>
+							<span>개인</span>
+						</div>
+					</li>
+					<li id="cls-button-1" class="center">
+						<div>
+							<div class="icons corporate-user" />
+						</div>
+						<div>
+							<span>기업</span>
+						</div>
+					</li>
+					<li id="cls-button-2">
+						<div>
+							<div class="icons ordering-organization" />
+						</div>
+						<div>
+							<span>발주기관</span>
+						</div>
+					</li>
 				</ul>
 			</div>
 			<div class="gg-radio-inline login-radio" style="display: none;">
-				<label class="gg-radio gg-radio-outline">
-					<input type="radio" name="cls" value="0" data-index="0" checked /> 개인
-					<span></span>
-				</label>
-				<label class="gg-radio gg-radio-outline">
-					<input type="radio" name="cls" value="1" data-index="1" /> 기업
-					<span></span>
-				</label>
-				<label class="gg-radio gg-radio-outline">
-					<input type="radio" name="cls" value="3" data-index="2" /> 지자체
-					<span></span>
+				<label class="gg-radio gg-radio-outline"> <input
+					type="radio" name="cls" value="0" data-index="0" checked /> 개인 <span></span>
+				</label> <label class="gg-radio gg-radio-outline"> <input
+					type="radio" name="cls" value="1" data-index="1" /> 기업 <span></span>
+				</label> <label class="gg-radio gg-radio-outline"> <input
+					type="radio" name="cls" value="3" data-index="2" /> 지자체 <span></span>
 				</label>
 			</div>
 		</div>
-		<div id="signin-wrapper" style="display: none;">
-			<div class="contents-row">
-				<label for="id" class="control-label marR5">아이디</label>
-				<input name="id" id="id" type="text" tabIndex="1" class="gg-input" maxlength="15" placeholder="아이디">
-				<label for="pass" class="control-label marR5">비밀번호</label>
-				<input name="pass" id="pass" size="12" tabIndex="2" maxlength="15" type="password" class="gg-input" onkeydown="javascript:enterKey()" placeholder="비밀번호">
-			</div>
-			<div class="contents-row t-center padT20">
-				<button type="button" class="btn btn-small btn-primary" onClick="javascript:loginBtn()">로그인</button>
-				<button type="button" class="btn btn-small btn-dark-gray marL10 mfp-popup-close">취소</button>
+		<div class="signin-wrapper" id="signin-wrapper" style="display: none;">
+			<p>국토지반정보 포털시스템에 오신 것을 환영합니다.</p>
+			<div class="login-form-row">
+				<div class="contents-row id-password-wrapper">
+					<input
+						name="id" id="id" type="text" tabIndex="1" class="gg-input"
+						maxlength="15" placeholder="아이디를 입력해 주세요.">
+					<input name="pass"
+						id="pass" size="12" tabIndex="2" maxlength="15" type="password"
+						class="gg-input" onkeydown="javascript:enterKey()"
+						placeholder="비밀번호를 입력해 주세요.">
+				</div>
+				<div class="contents-row t-center signin-button-wrapper">
+					<button type="button" class="btn btn-small btn-primary"
+						onClick="javascript:loginBtn()">로그인</button>
+					<button type="button"
+						class="btn btn-small btn-dark-gray marL10 mfp-popup-close">취소</button>
+				</div>
 			</div>
 		</div>
 
@@ -239,30 +272,30 @@
 
 			// 버튼 클릭 이벤트 핸들러 함수
 			function handleButtonClick(event) {
-			  var clickedButtonId = event.target.id; // 클릭된 버튼의 ID 가져오기
+				var clickedButtonId = event.target.id; // 클릭된 버튼의 ID 가져오기
 
-			  // 클릭된 버튼에 따라 해당 라디오 버튼 선택
-			  if (clickedButtonId === "cls-button-0") {
-			    radioInputs[0].checked = true;
-			  } else if (clickedButtonId === "cls-button-1") {
-			    radioInputs[1].checked = true;
-			  } else if (clickedButtonId === "cls-button-2") {
-			    radioInputs[2].checked = true;
-			  }
+				// 클릭된 버튼에 따라 해당 라디오 버튼 선택
+				if (clickedButtonId === "cls-button-0") {
+					radioInputs[0].checked = true;
+				} else if (clickedButtonId === "cls-button-1") {
+					radioInputs[1].checked = true;
+				} else if (clickedButtonId === "cls-button-2") {
+					radioInputs[2].checked = true;
+				}
 
-
-			  var accountTypeWrapperEle = document.getElementById("account-type-wrapper");
-			  accountTypeWrapperEle.style.display="none";
-			  var signinWrapperEle = document.getElementById("signin-wrapper");
-			  signinWrapperEle.style.display="block";
+				var accountTypeWrapperEle = document
+						.getElementById("account-type-wrapper");
+				accountTypeWrapperEle.style.display = "none";
+				var signinWrapperEle = document
+						.getElementById("signin-wrapper");
+				signinWrapperEle.style.display = "block";
 			}
 
 			// 각 버튼에 클릭 이벤트 리스너 추가
 			clsButton0.addEventListener("click", handleButtonClick);
 			clsButton1.addEventListener("click", handleButtonClick);
 			clsButton2.addEventListener("click", handleButtonClick);
-
 		</script>
 	</form>
 </div>
-<!-- 로그인 끝 -->
+<!-- 로그인 끝 -->
\ No newline at end of file
diff --git a/src/main/webapp/WEB-INF/views/home/index.jsp b/src/main/webapp/WEB-INF/views/home/index.jsp
index 25518c25..4bbe5ba3 100644
--- a/src/main/webapp/WEB-INF/views/home/index.jsp
+++ b/src/main/webapp/WEB-INF/views/home/index.jsp
@@ -520,6 +520,10 @@
 								<span class="contact-text-title">콜센터</span>
 								<span class="contact-text-con">031-910-0407, 031-995-0934</span>
 							</p>
+							<p>
+								<span class="contact-text-title">검수관련 문의</span>
+								<span class="contact-text-con">031-910-0566,<br /><span class="second-tel">031-910-0407</span></span>
+							</p>
 							<p>
 								<span class="contact-text-title">이메일</span>
 								<span class="contact-text-con"><a href="mailto:ryujisong@kict.re.kr">song7938@kict.re.kr</a></span>
diff --git a/src/main/webapp/com/css/apply.bat b/src/main/webapp/com/css/apply.bat
new file mode 100644
index 00000000..356db0ce
--- /dev/null
+++ b/src/main/webapp/com/css/apply.bat
@@ -0,0 +1,2 @@
+copy *.css /y ..\..\..\..\..\..\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\geoinfo_eGov_work\com\css\
+copy *.map /y ..\..\..\..\..\..\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\geoinfo_eGov_work\com\css\
diff --git a/src/main/webapp/com/css/builtCSS.lnk b/src/main/webapp/com/css/builtCSS.lnk
new file mode 100644
index 0000000000000000000000000000000000000000..febdedd884727cd9ef7e9ed6c6243f1a87122f14
GIT binary patch
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diff --git a/src/main/webapp/com/css/common.v2.0.css b/src/main/webapp/com/css/common.v2.0.css
index a0001510..0907b8c9 100644
--- a/src/main/webapp/com/css/common.v2.0.css
+++ b/src/main/webapp/com/css/common.v2.0.css
@@ -1,2697 +1,3237 @@
-@charset "utf-8";
-
-/* ----------------------------------
-
-Name: common.css
-Categorie : 레이아웃, 플러그인, 컴포넌트, 버튼 등의 재정의 (공통)
-Author : 이상혁
-Version : v.2.0
-Created : 2020-03-02
-Last update : 2020-03-02
-
--------------------------------------
-
-Table of contents
-
-	01. 적응형 재정의
-	02. 반응형 재정의
-	03. 스타일 재정의
-	04. 메뉴 재정의
-	05. 공통
-	06. 풋터
-	07. 메인 레이아웃
-	08. 서브 레이아웃
-	09. 익스플로어 레이아웃
-
-*/
-/* ===================================
-	적응형 재정의 시작
-====================================== */
+@charset "UTF-8";
+/* ---------------------------------- */
+/* ---------------------------------- */
+/* ====================================== */
+/* ====================================== */
 body,
 .navbar,
 .parallax,
 .page-footer,
 .menu-all-popup-wrapper .mfp-container {
-	min-width: 1400px;
+  min-width: 1400px;
 }
+
 .nav-header-container {
-	width: 100%;
-	min-width: 1280px;
+  width: 100%;
+  min-width: 1280px;
 }
+
 .visual-user-count-group,
 .page-footer .page-footer-inner,
 .visual-status-count-group,
 .visual-btn-group .visual-btn-inner,
 .contents-question {
-	width: 1280px;
+  width: 1280px;
 }
+
 .parallax {
-	padding: 0px;
-	min-height: 900px;
-	overflow: inherit;
-	z-index: 1;
+  padding: 0px;
+  min-height: 900px;
+  overflow: inherit;
+  z-index: 1;
 }
+
 .search-form {
-	position: relative;
+  position: relative;
 }
+
 .page-content-wrapper {
-	position: relative;
-	width: 1280px;
-	min-width: 1280px;
-	margin: auto;
+  position: relative;
+  width: 1280px;
+  min-width: 1280px;
+  margin: auto;
 }
-/* ===================================
-	적응형 재정의 끝
-====================================== */
 
-
-/* ===================================
-	반응형 재정의 시작
-====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
 .navbar-collapse.collapse {
-	display: block !important;
-	height: auto !important;
-	padding-bottom: 0;
-	overflow: visible !important;
+  display: block !important;
+  height: auto !important;
+  padding-bottom: 0;
+  overflow: visible !important;
 }
+
 .row {
-	margin: 0px;
+  margin: 0px;
 }
+
 .col-lg-1, .col-lg-10, .col-lg-11, .col-lg-12, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-md-1, .col-md-10, .col-md-11, .col-md-12, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-sm-1, .col-sm-10, .col-sm-11, .col-sm-12, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-xs-1, .col-xs-10, .col-xs-11, .col-xs-12, .col-xs-2, .col-xs-3, .col-xs-4, .col-xs-5, .col-xs-6, .col-xs-7, .col-xs-8, .col-xs-9 {
-	padding:0px;
+  padding: 0px;
 }
 
 /* 커스텀 Responsive Table Grid col 2개이상 시작 */
 .row-table-layout {
-	display: table;
-	width: 100%;
-	table-layout: fixed;
+  display: table;
+  width: 100%;
+  table-layout: fixed;
 }
+
 .row-side-noPad {
-	/* display: table-row; */
-	padding-bottom: 50px;
+  /* display: table-row; */
+  padding-bottom: 50px;
 }
+
 .row-side-noPad div[class^=col-] {
-	display: table-cell;
-	vertical-align: top;
-	padding: 0px 20px;
+  display: table-cell;
+  vertical-align: top;
+  padding: 0px 20px;
 }
+
 .row-side-noPad .contents-panel-title {
-	position: absolute;
-	top: 0px;
-	width: 100%;
+  position: absolute;
+  top: 0px;
+  width: 100%;
 }
+
 .row-side-noPad .contents-panel {
-	table-layout: fixed;
-	height: 100%;
+  table-layout: fixed;
+  height: 100%;
 }
+
 .row-side-noPad .page-title-3depth + .contents-panel {
-	height: calc(100% - 56px);
+  height: calc(100% - 56px);
 }
+
 .row-side-noPad div[class^=col-]:first-child {
-	padding-left: 0px;
+  padding-left: 0px;
 }
+
 .row-side-noPad div[class^=col-]:last-child {
-	padding-right: 0px;
+  padding-right: 0px;
 }
+
 .row-side-noPad .col-side-noPad {
-	height: 0px;
+  height: 0px;
 }
+
 /* 커스텀 Responsive Table Grid col 2개이상 끝 */
-
-/* ===================================
-	반응형 재정의 끝
-====================================== */
-
-
-/* ===================================
-	스타일 재정의 시작
-====================================== */
-/* scroll-top-arrow 시작 */
-.scroll-top-arrow, .scroll-top-arrow:focus {
-	background-color: #000;
-	background-image: url(../img/common/btn/btn_scroll_top_arrow.png);
-	background-repeat: no-repeat;
-	background-position: 50% 50%;
-	height: 50px;
-	width: 50px;
-	border-radius: 0px;
+/* ====================================== */
+반응형 재정의 끝 .scroll-top-arrow,
+.scroll-top-arrow:focus {
+  background-color: #000;
+  background-image: url(../img/common/btn/btn_scroll_top_arrow.png);
+  background-repeat: no-repeat;
+  background-position: 50% 50%;
+  height: 50px;
+  width: 50px;
+  border-radius: 0px;
 }
+
 .scroll-top-arrow:hover {
-	background-color: #3378c1;
+  background-color: #3378c1;
 }
-/* scroll-top-arrow 끝 */
 
+/* scroll-top-arrow 끝 */
 /* magnific-popup 시작 */
 .mfp-close {
-	font-family: inherit;
-	font-size: 0;
-	line-height: inherit;
+  font-family: inherit;
+  font-size: 0;
+  line-height: inherit;
 }
+
 .mfp-close::after, .mfp-close::before {
-	content: "";
-	display: block;
-	background: #fff;
-	height: 2px;
-	width: 40px;
-	position: absolute;
-	left: 0px;
-	top: 50%;
+  content: "";
+  display: block;
+  background: #fff;
+  height: 2px;
+  width: 40px;
+  position: absolute;
+  left: 0px;
+  top: 50%;
 }
+
 .mfp-close:before {
-	transform: rotate(-45deg);
-	-webkit-transform: rotate(-45deg);
-	-moz-transform: rotate(-45deg);
-	-ms-transform: rotate(-45deg);
-	-o-transform: rotate(-45deg);
+  transform: rotate(-45deg);
+  -webkit-transform: rotate(-45deg);
+  -moz-transform: rotate(-45deg);
+  -ms-transform: rotate(-45deg);
+  -o-transform: rotate(-45deg);
 }
 
 .mfp-close:after {
-	transform: rotate(45deg);
-	-webkit-transform: rotate(45deg);
-	-moz-transform: rotate(45deg);
-	-ms-transform: rotate(45deg);
-	-o-transform: rotate(45deg);
+  transform: rotate(45deg);
+  -webkit-transform: rotate(45deg);
+  -moz-transform: rotate(45deg);
+  -ms-transform: rotate(45deg);
+  -o-transform: rotate(45deg);
 }
-/* magnific-popup 끝 */
 
+/* magnific-popup 끝 */
 /* cbp-spmenu popup 시작 */
 .close-button-menu {
-	padding: 0px;
+  padding: 0px;
 }
+
 .close-button-menu:after, .close-button-menu:before {
-	width: 40px;
+  width: 40px;
 }
+
 /* cbp-spmenu popup 끝 */
-
-/* ===================================
-	스타일 재정의 끝
-====================================== */
-
-
-/* ===================================
-	공통 시작
-====================================== */
-/* 컨텐츠 큰제목 시작 */
-.contents-title {
-	position: relative;
-	margin-bottom: 20px;
-	text-align: center;
+/* ====================================== */
+스타일 재정의 끝 .contents-title {
+  position: relative;
+  margin-bottom: 20px;
+  text-align: center;
 }
+
 .contents-title .contents-title-text::after {
-	content: "";
-	position: absolute;
-	top: 2px;
-	left: 0px;
-	width: 113px;
-	height: 12px;
-	margin-top: 8px;
-	background: url(../img/common/bu/bu_main_title.png) no-repeat 50% 50%;
+  content: "";
+  position: absolute;
+  top: 2px;
+  left: 0px;
+  width: 113px;
+  height: 12px;
+  margin-top: 8px;
+  background: url(../img/common/bu/bu_main_title.png) no-repeat 50% 50%;
 }
-.contents-title .contents-title-text::before {
-	content: "";
-	position: absolute;
-	top: 2px;
-	right: 0px;
-	display: block;
-	width: 113px;
-	height: 12px;
-	margin-top: 8px;
-	background: url(../img/common/bu/bu_main_title.png) no-repeat 50% 50%;
-}
-.contents-title-text {
-	font-weight: bold;
-	position: relative;
-	padding: 0px 140px;
-}
-.page-title {
-	position: relative;
-	padding: 40px 0px 25px 0px;
-	margin-bottom: 40px;
-	text-align: left;
-	border-bottom: 2px solid #000000;
-}
-.page-title-text {
-	font-weight: bold;
-	font-size: 34px;
-	position: relative;
-}
-.page-title-2depth {
-	position: relative;
-	color: #00182c;
-	font-weight: bold;
-	font-size: 30px;
-	margin-top: 60px;
-	padding: 20px 0px 30px 0px;
-	background: url(../img/common/bu/bu_title_2depth.png) no-repeat 0 0;
-}
-.page-title-3depth {
-	position: relative;
-	color: #08b3e3;
-	font-weight: bold;
-	font-size: 24px;
-	margin-top: 50px;
-	padding: 10px 0px 20px 0px;
-	background: url(../img/common/bu/bu_title_3depth.png) no-repeat 0 0;
-}
-.page-title-3depth.title-line span {
-	position: relative;
-	background-color: #fff;
-	padding-right: 20px;
-	z-index: 12;
-}
-.page-title-3depth.title-line::after {
-	content: "";
-	display: block;
-	background-color: #b5bfc8;
-	width: 100%;
-	height: 2px;
-	position: absolute;
-	top: 21px;
-}
-.page-category {
-	position: absolute;
-	top: 40px;
-	right: 0px;
-	padding-left: 30px;
-	background: url(../img/common/icon/ico_category_home.png) no-repeat 0 6px;
-}
-.page-category .category-item {
-	font-size: 16px;
-	float: left;
-	padding-left: 30px;
-	background: url(../img/common/icon/ico_category_arrow.png) no-repeat 12px 50%;
-}
-.page-category .category-item:first-child {
-	padding-left: 0px;
-	background: none;
-}
-/* 컨텐츠 큰제목 끝 */
 
+.contents-title .contents-title-text::before {
+  content: "";
+  position: absolute;
+  top: 2px;
+  right: 0px;
+  display: block;
+  width: 113px;
+  height: 12px;
+  margin-top: 8px;
+  background: url(../img/common/bu/bu_main_title.png) no-repeat 50% 50%;
+}
+
+.contents-title-text {
+  font-weight: bold;
+  position: relative;
+  padding: 0px 140px;
+}
+
+.page-title {
+  position: relative;
+  padding: 40px 0px 25px 0px;
+  margin-bottom: 40px;
+  text-align: left;
+  border-bottom: 2px solid #000000;
+}
+
+.page-title-text {
+  font-weight: bold;
+  font-size: 34px;
+  position: relative;
+}
+
+.page-title-2depth {
+  position: relative;
+  color: #00182c;
+  font-weight: bold;
+  font-size: 30px;
+  margin-top: 60px;
+  padding: 20px 0px 30px 0px;
+  background: url(../img/common/bu/bu_title_2depth.png) no-repeat 0 0;
+}
+
+.page-title-3depth {
+  position: relative;
+  color: #08b3e3;
+  font-weight: bold;
+  font-size: 24px;
+  margin-top: 50px;
+  padding: 10px 0px 20px 0px;
+  background: url(../img/common/bu/bu_title_3depth.png) no-repeat 0 0;
+}
+
+.page-title-3depth.title-line span {
+  position: relative;
+  background-color: #fff;
+  padding-right: 20px;
+  z-index: 12;
+}
+
+.page-title-3depth.title-line::after {
+  content: "";
+  display: block;
+  background-color: #b5bfc8;
+  width: 100%;
+  height: 2px;
+  position: absolute;
+  top: 21px;
+}
+
+.page-category {
+  position: absolute;
+  top: 40px;
+  right: 0px;
+  padding-left: 30px;
+  background: url(../img/common/icon/ico_category_home.png) no-repeat 0 6px;
+}
+
+.page-category .category-item {
+  font-size: 16px;
+  float: left;
+  padding-left: 30px;
+  background: url(../img/common/icon/ico_category_arrow.png) no-repeat 12px 50%;
+}
+
+.page-category .category-item:first-child {
+  padding-left: 0px;
+  background: none;
+}
+
+/* 컨텐츠 큰제목 끝 */
 /* UL블릿 시작 */
 ul.content-ul-list > li {
-	padding-left: 20px;
-	padding-bottom: 2px;
-	background: url(../img/common/bu/bu_li_type_01.png) no-repeat 0 8px;
+  padding-left: 20px;
+  padding-bottom: 2px;
+  background: url(../img/common/bu/bu_li_type_01.png) no-repeat 0 8px;
 }
-/* UL블릿 끝 */
 
+/* UL블릿 끝 */
 .iframe-body-none {
-	display: none;
+  display: none;
 }
+
 .iframe-body {
-	width: 100%;
-	min-width: 100%;
-	overflow-x:hidden;
-	animation: none !important;
-	animation-name: none !important;
-	transition-timing-function: none !important;
-	-ms-transition-timing-function: none !important;
-	-moz-transition-timing-function: none !important;
-	-webkit-transition-timing-function: none !important;
-	-o-transition-timing-function: none !important;
-	transition-duration: .0s !important;
-	-ms-transition-duration: .0s !important;
-	-moz-transition-duration: .0s !important;
-	-webkit-transition-duration: .0s !important;
-	-o-transition-duration: .0s !important;
+  width: 100%;
+  min-width: 100%;
+  overflow-x: hidden;
+  animation: none !important;
+  animation-name: none !important;
+  transition-timing-function: none !important;
+  -ms-transition-timing-function: none !important;
+  -moz-transition-timing-function: none !important;
+  -webkit-transition-timing-function: none !important;
+  -o-transition-timing-function: none !important;
+  transition-duration: 0s !important;
+  -ms-transition-duration: 0s !important;
+  -moz-transition-duration: 0s !important;
+  -webkit-transition-duration: 0s !important;
+  -o-transition-duration: 0s !important;
 }
+
 .sub-iframe-body {
-	width: 1020px;
-	min-width: 1020px;
-	overflow-x:hidden;
-	animation: none !important;
-	animation-name: none !important;
-	transition-timing-function: none !important;
-	-ms-transition-timing-function: none !important;
-	-moz-transition-timing-function: none !important;
-	-webkit-transition-timing-function: none !important;
-	-o-transition-timing-function: none !important;
-	transition-duration: .0s !important;
-	-ms-transition-duration: .0s !important;
-	-moz-transition-duration: .0s !important;
-	-webkit-transition-duration: .0s !important;
-	-o-transition-duration: .0s !important;
+  width: 1020px;
+  min-width: 1020px;
+  overflow-x: hidden;
+  animation: none !important;
+  animation-name: none !important;
+  transition-timing-function: none !important;
+  -ms-transition-timing-function: none !important;
+  -moz-transition-timing-function: none !important;
+  -webkit-transition-timing-function: none !important;
+  -o-transition-timing-function: none !important;
+  transition-duration: 0s !important;
+  -ms-transition-duration: 0s !important;
+  -moz-transition-duration: 0s !important;
+  -webkit-transition-duration: 0s !important;
+  -o-transition-duration: 0s !important;
 }
+
 .popup-body .content-wrapper {
-	padding: 20px;
+  padding: 20px;
 }
+
 iframe,
 .animationNone,
 .content-wrapper {
-	animation: none !important;
-	animation-name: none !important;
-	transition-timing-function: none !important;
-	-ms-transition-timing-function: none !important;
-	-moz-transition-timing-function: none !important;
-	-webkit-transition-timing-function: none !important;
-	-o-transition-timing-function: none !important;
-	transition-duration: .0s !important;
-	-ms-transition-duration: .0s !important;
-	-moz-transition-duration: .0s !important;
-	-webkit-transition-duration: .0s !important;
-	-o-transition-duration: .0s !important;
+  animation: none !important;
+  animation-name: none !important;
+  transition-timing-function: none !important;
+  -ms-transition-timing-function: none !important;
+  -moz-transition-timing-function: none !important;
+  -webkit-transition-timing-function: none !important;
+  -o-transition-timing-function: none !important;
+  transition-duration: 0s !important;
+  -ms-transition-duration: 0s !important;
+  -moz-transition-duration: 0s !important;
+  -webkit-transition-duration: 0s !important;
+  -o-transition-duration: 0s !important;
 }
+
 /* 메인팝업 시작 */
 .main-divPopup {
-	position: fixed;
-	border: 2px solid #000;
-	background-color: #fff;
-	overflow: hidden;
-	z-index: 9999;
+  position: fixed;
+  border: 2px solid #000;
+  background-color: #fff;
+  overflow: hidden;
+  z-index: 9999;
 }
+
 .popup-contents-row {
-	position: relative;
-	width: 100%;
-	display: table;
-	box-sizing: border-box;
+  position: relative;
+  width: 100%;
+  display: table;
+  box-sizing: border-box;
 }
+
 .popup-close-group {
-	background-color: #000;
-	border: 2px solid #000;
-	height:40px;
-	text-align: right;
+  background-color: #000;
+  border: 2px solid #000;
+  height: 40px;
+  text-align: right;
 }
+
 .popup-close,
 .popup-close-group a {
-	color: #fff;
+  color: #fff;
 }
+
 .popup-close-group a {
-	margin-right: 20px;
-	font-size: 14px;
-	font-weight: 700;
-	cursor: pointer;
+  margin-right: 20px;
+  font-size: 14px;
+  font-weight: 700;
+  cursor: pointer;
 }
+
 .popup-close-group a:hover {
-	color: #3378c1;
+  color: #3378c1;
 }
+
 .popup-close .gg-checkbox {
-	margin-top: 10px;
-	margin-right: 20px;
+  margin-top: 10px;
+  margin-right: 20px;
 }
+
 .ie .popup-close .gg-checkbox {
-	margin-top: 6px;
-	margin-right: 20px;
+  margin-top: 6px;
+  margin-right: 20px;
 }
+
 .popup-close .gg-checkbox > span:after {
-	border: solid #fff;
-	border-width: 0 2px 2px 0;
+  border: solid #fff;
+  border-width: 0 2px 2px 0;
 }
-.popup-hiddenFrame{
-	display: none;
+
+.popup-hiddenFrame {
+  display: none;
 }
+
 /* 메인팝업 끝 */
-
-
 /* 모달팝업 시작 */
 .modal-dialog {
-	margin: 200px auto 30px auto !important;
+  margin: 200px auto 30px auto !important;
 }
+
 .modal-open .modal {
-	z-index: 9999;
+  z-index: 9999;
 }
+
 .modal-backdrop.in {
-	z-index: 9998;
+  z-index: 9998;
 }
+
 .modal .modal-header {
-    border-bottom: 1px solid #2764af;
-    background-color: #3e90f5;
-    border-radius: 4px 4px 0px 0px;
+  border-bottom: 1px solid #2764af;
+  background-color: #3e90f5;
+  border-radius: 4px 4px 0px 0px;
 }
+
 .modal-title {
-    color: #fff;
-    font-weight: bold;
-    font-size: 20px;
+  color: #fff;
+  font-weight: bold;
+  font-size: 20px;
 }
+
 .modal .modal-header .close {
-    width: 20px;
-    height: 20px;
-    opacity: 1;
-    margin-top: 4px !important;
-    background-image: url(../img/common/icon/icon_popup_close.png) !important;
+  width: 20px;
+  height: 20px;
+  opacity: 1;
+  margin-top: 4px !important;
+  background-image: url(../img/common/icon/icon_popup_close.png) !important;
 }
-.modal.main-notice {
 
-}
 .modal.main-notice .modal-title {
-	text-align: center;
+  text-align: center;
 }
+
 .modal.main-notice .modal-dialog {
-	margin: 160px auto 30px auto !important;
+  margin: 160px auto 30px auto !important;
 }
+
 .modal.main-notice .modal-footer {
-	background-color: #000;
-	color:#fff;
+  background-color: #000;
+  color: #fff;
 }
+
 /* 모달팝업 끝 */
-
 .table-reply {
-	padding-left: 66px !important;
-	background: url(../img/common/bg/bg_table_reply.png) no-repeat 8px 50%;
+  padding-left: 66px !important;
+  background: url(../img/common/bg/bg_table_reply.png) no-repeat 8px 50%;
 }
 
-.form-inline .form-group {
-
-}
 .input-label-none {
-	display: none;
+  display: none;
 }
+
 .input-label-display {
-	position: relative;
-    font-size: 16px;
-    padding: 0px 10px 0px 20px;
-    margin: 0px;
-    border: none;
-    background: url(../img/common/bu/bu_title_4depth.png) no-repeat 0 50%;
-	pointer-events: none;
+  position: relative;
+  font-size: 16px;
+  padding: 0px 10px 0px 20px;
+  margin: 0px;
+  border: none;
+  background: url(../img/common/bu/bu_title_4depth.png) no-repeat 0 50%;
+  pointer-events: none;
 }
-.input-group[class*="col-"] .input-group-btn {
-	width: 1%;
+
+.input-group[class*=col-] .input-group-btn {
+  width: 1%;
 }
+
 .input-group .input-label-display,
 .input-group .input-group-label {
-	display: table-cell;
-    white-space: nowrap;
-	vertical-align: middle;
-    width: 1%;
+  display: table-cell;
+  white-space: nowrap;
+  vertical-align: middle;
+  width: 1%;
 }
+
 .input-group .input-group-label .input-label-display {
-	display: inline-block;
-	width: auto;
+  display: inline-block;
+  width: auto;
 }
+
 .input-group-btn.input-group-last > .btn,
 .input-group-btn.input-group-last > .btn-group {
-	margin-left: 0px;
+  margin-left: 0px;
 }
+
 .input-group-btn.input-group-last {
-	padding-left: 10px;
+  padding-left: 10px;
 }
+
 .input-group-btn.input-group-last > .btn {
-	border-radius: 5px;
+  border-radius: 5px;
 }
+
 .form-list > .form-inline {
-	margin-bottom: 4px;
+  margin-bottom: 4px;
 }
+
 .form-list > .form-inline:last-child {
-	margin-bottom: 0px;
+  margin-bottom: 0px;
 }
+
 .form-inline .form-group,
 .form-inline .input-group {
-	padding-left: 10px;
+  padding-left: 10px;
 }
+
 .form-inline .form-group:first-child,
 .form-inline .input-group:first-child {
-	padding-left: 0px;
+  padding-left: 0px;
 }
-.form-inline .form-group[class*="col-"],
-.form-inline .input-group[class*="col-"] {
-	float: left;
+
+.form-inline .form-group[class*=col-],
+.form-inline .input-group[class*=col-] {
+  float: left;
 }
+
 .control-label {
-	padding: 0px 5px;
+  padding: 0px 5px;
 }
+
 .form-inline .control-label + .form-group,
 .form-inline .control-label + .input-group {
-	padding-left: 0px;
+  padding-left: 0px;
 }
+
 .form-group input, .input-group input,
 .form-group textarea, .input-group textarea,
 .form-group select, .input-group select {
-	margin: 0px;
+  margin: 0px;
 }
 
 .grid-norecords {
-	width: 100%;
-	height: 100%;
-	text-align: center;
-	min-height: 44px;
-	font-size: 0px;
-	background: url(../img/common/icon/ico_no_data.png) no-repeat 50% 50%;
+  width: 100%;
+  height: 100%;
+  text-align: center;
+  min-height: 44px;
+  font-size: 0px;
+  background: url(../img/common/icon/ico_no_data.png) no-repeat 50% 50%;
 }
 
 .grid-norecords-2 {
-	width: 100%;
-	height: 100%;
-	text-align: center;
-	min-height: 44px;
-	font-size: 0px;
-	background: url(../img/common/icon/ico_no_data2.png) no-repeat 50% 50%;
+  width: 100%;
+  height: 100%;
+  text-align: center;
+  min-height: 44px;
+  font-size: 0px;
+  background: url(../img/common/icon/ico_no_data2.png) no-repeat 50% 50%;
 }
 
 /* 커스텀 팝업 시작 */
 .custom-popup-wrapper {
-    position: absolute;
-    display: none;
-    top: 50%;
-	left: 50%;
-    min-width: 120px;
-    min-height: 120px;
-    background-color: #ffffff;
-    border: 2px solid #1990cc;
-    border-radius: 5px;
-    z-index: 999;
+  position: absolute;
+  display: none;
+  top: 50%;
+  left: 50%;
+  min-width: 120px;
+  min-height: 120px;
+  background-color: #ffffff;
+  border: 2px solid #1990cc;
+  border-radius: 5px;
+  z-index: 999;
 }
+
 .custom-popup-wrapper.open {
-    display: block;
+  display: block;
 }
+
 .custom-popup-title {
-    position: relative;
-    background-color: #1990cc;
-    color: #fff;
-    font-size: 18px;
-    font-weight: bold;
-    text-align: center;
-    padding: 4px;
-    white-space: nowrap;
-    height: 32px;
+  position: relative;
+  background-color: #1990cc;
+  color: #fff;
+  font-size: 18px;
+  font-weight: bold;
+  text-align: center;
+  padding: 4px;
+  white-space: nowrap;
+  height: 32px;
 }
+
 .custom-popup-contents {
-	padding: 14px;
+  padding: 14px;
 }
+
 .custom-popup-close {
-    position: absolute;
-    top: 0px;
-    right: 4px;
-    display: block;
-    width: 32px;
-    height: 32px;
-    font-size: 0px;
-    background: url(../img/common/icon/ico_btn_close.png) no-repeat 50% 50%;
+  position: absolute;
+  top: 0px;
+  right: 4px;
+  display: block;
+  width: 32px;
+  height: 32px;
+  font-size: 0px;
+  background: url(../img/common/icon/ico_btn_close.png) no-repeat 50% 50%;
 }
+
 .icon-limits {
-	width: 48px;
-	height: 48px;
-	display: block;
-    float: left;
-    margin-right: 16px;
-	background: url(../img/common/icon/icon_limits.png) no-repeat 50% 50%;
+  width: 48px;
+  height: 48px;
+  display: block;
+  float: left;
+  margin-right: 16px;
+  background: url(../img/common/icon/icon_limits.png) no-repeat 50% 50%;
 }
+
 /* 커스텀 팝업 끝 */
-
-/* ===================================
-	공통 끝
-====================================== */
-
-
-/* ===================================
-	메뉴 재정의 시작
-====================================== */
-
-header nav.navbar.white-link .navbar-nav > li > a, nav.navbar.bootsnav.white-link ul.nav > li > a,
+/* ====================================== */
+공통 끝 메뉴 재정의 시작 header nav.navbar.white-link .navbar-nav > li > a,
+nav.navbar.bootsnav.white-link ul.nav > li > a,
 header nav.navbar.white-link .header-social-icon a, nav.navbar.bootsnav.white-link .header-social-icon a,
 header nav.navbar.white-link .header-searchbar a, nav.navbar.bootsnav.white-link .header-searchbar a,
 header nav.navbar.bootsnav ul.nav.white-link > li > a, nav.navbar.white-link .heder-menu-button a {
-	color: #232323;
+  color: #232323;
 }
+
 .white-link .mobile-toggle span {
-	background: #232323;
+  background: #232323;
 }
+
 header nav.navbar-fixed-top {
-	background-color: transparent;
+  background-color: transparent;
 }
+
 header.sticky nav.navbar-fixed-top {
-	background-color: #ffffff;
+  background-color: #ffffff;
 }
 
 /* header animation disable */
 header,
 header nav.navbar-fixed-top {
-	transition-timing-function: inherit;
-	-ms-transition-timing-function: inherit;
-	-moz-transition-timing-function: inherit;
-	-webkit-transition-timing-function: inherit;
-	-o-transition-timing-function: inherit;
-	transition-duration: 0s;
-	-ms-transition-duration: 0s;
-	-moz-transition-duration: 0s;
-	-webkit-transition-duration: 0s;
-	-o-transition-duration: 0s;
+  transition-timing-function: inherit;
+  -ms-transition-timing-function: inherit;
+  -moz-transition-timing-function: inherit;
+  -webkit-transition-timing-function: inherit;
+  -o-transition-timing-function: inherit;
+  transition-duration: 0s;
+  -ms-transition-duration: 0s;
+  -moz-transition-duration: 0s;
+  -webkit-transition-duration: 0s;
+  -o-transition-duration: 0s;
 }
+
 /* dropdown menu animation disable */
 .dropdown-menu,
 .dropdown-menu.animated,
 .dropdown-menu.fadeOut,
 .dropdown-menu.fadeIn {
-	animation: none !important;
+  animation: none !important;
 }
+
 .dropdown-menu.in {
-	display: block;
+  display: block;
 }
+
 nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li.dropdown > ul.in,
 nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li.dropdown > ul > li.dropdown > ul.in {
-	display: block;
+  display: block;
 }
 
 .nav-header-inner {
-	align-items: center;
-	display: -ms-flex; display:
-	-webkit-flex; display:
-	-moz-flex;
-	display: flex;
-	height: auto;
-	padding: 0;
-}
-.logo-wrapper {
-	flex: 1 1 auto;
-}
-.navbar-collapse-wrapper {
-	width: auto;
-	float: right;
-}
-nav.navbar.bootsnav li.dropdown .mega-menu-full > ul > li {
-	float: left;
-}
-@media (max-width: 991px) {
-	.navbar-nav li > a,
-	nav.navbar.navbar-default ul.nav > li > a,
-	nav.navbar-brand-top.navbar.navbar-default ul.nav > li > a,
-	header .navbar-nav li > a,
-	header nav.navbar-fixed-top.header-light-transparent.white-link .navbar-nav > li > a,
-	header nav.navbar-fixed-top.header-light.white-link .navbar-nav > li > a,
-	nav.navbar.bootsnav li.dropdown ul.mega-menu-full li > a,
-	header.sticky nav.navbar.navbar-default.navbar-fixed-top ul.nav > li > a,
-	header.sticky nav.navbar.navbar-default.navbar-top ul.nav > li > a,
-	nav.navbar.bootsnav li.dropdown ul.mega-menu-full li.dropdown-header {
-		/* color: #fff; */
-	}
-}
-@media all {
-	.navbar-nav > li {
-		float: left !important;
-		clear: none !important;
-	}
-	nav.navbar.bootsnav .navbar-nav {
-		background-color: inherit !important;
-		margin: 0;
-		float: left !important;
-	}
-	.navbar-collapse.collapse,
-	nav.navbar.bootsnav .navbar-collapse.collapse {
-		display: block!important;
-	}
-	nav.navbar.bootsnav li.dropdown .mega-menu > ul {
-		margin: 0 auto;
-		width: auto;
-		display: table;
-	}
-	.navbar-btn-wrapper {
-		width: auto;
-		padding-left: 30px;
-	}
+  align-items: center;
+  display: -ms-flex;
+  display: -webkit-flex;
+  display: -moz-flex;
+  display: flex;
+  height: auto;
+  padding: 0;
 }
 
+.logo-wrapper {
+  flex: 1 1 auto;
+}
+
+.navbar-collapse-wrapper {
+  width: auto;
+  float: right;
+}
+
+nav.navbar.bootsnav li.dropdown .mega-menu-full > ul > li {
+  float: left;
+}
+
+@media (max-width: 991px) {
+  .navbar-nav li > a,
+  nav.navbar.navbar-default ul.nav > li > a,
+  nav.navbar-brand-top.navbar.navbar-default ul.nav > li > a,
+  header .navbar-nav li > a,
+  header nav.navbar-fixed-top.header-light-transparent.white-link .navbar-nav > li > a,
+  header nav.navbar-fixed-top.header-light.white-link .navbar-nav > li > a,
+  nav.navbar.bootsnav li.dropdown ul.mega-menu-full li > a,
+  header.sticky nav.navbar.navbar-default.navbar-fixed-top ul.nav > li > a,
+  header.sticky nav.navbar.navbar-default.navbar-top ul.nav > li > a,
+  nav.navbar.bootsnav li.dropdown ul.mega-menu-full li.dropdown-header {
+    /* color: #fff; */
+  }
+}
+@media all {
+  .navbar-nav > li {
+    float: left !important;
+    clear: none !important;
+  }
+  nav.navbar.bootsnav .navbar-nav {
+    background-color: inherit !important;
+    margin: 0;
+    float: left !important;
+  }
+  .navbar-collapse.collapse,
+  nav.navbar.bootsnav .navbar-collapse.collapse {
+    display: block !important;
+  }
+  nav.navbar.bootsnav li.dropdown .mega-menu > ul {
+    margin: 0 auto;
+    width: auto;
+    display: table;
+  }
+  .navbar-btn-wrapper {
+    width: auto;
+    padding-left: 30px;
+  }
+}
 /* 시추 헤더 스타일 시작 */
 .nav-header-container {
-	height: 140px;
+  height: 140px;
 }
+
 .navbar-collapse-wrapper,
 .navbar-collapse.collapse,
 nav.navbar.navbar-default ul.nav > li > a {
-	height: 80px !important;
+  height: 80px !important;
 }
+
 header nav.navbar .navbar-nav > li > a,
 nav.navbar.bootsnav ul.nav > li > a {
-	font-size: 16px;
-	font-weight: bold;
-	line-height: 80px;
-	padding: 0px 30px;
-	margin: 0px;
-	color: #fff;
+  font-size: 16px;
+  font-weight: bold;
+  line-height: 80px;
+  padding: 0px 30px;
+  margin: 0px;
+  color: #fff;
 }
+
 .navbar-global-wrapper {
-	position: relative;
-	display: block;
-	width: 1280px;
-	height: 60px;
-	padding: 10px 0px;
-	margin: 0px auto;
+  position: relative;
+  display: block;
+  width: 1280px;
+  height: 60px;
+  padding: 10px 0px;
+  margin: 0px auto;
 }
+
 .nav-header-bg {
-	position: absolute;
-	width: 100%;
-	height: 80px;
-	bottom: 0px;
-	background-color: #00479d;
+  position: absolute;
+  width: 100%;
+  height: 80px;
+  bottom: 0px;
+  background-color: #00479d;
 }
+
 .nav-header-line {
-	position: absolute;
-	top: 0px;
-	width: 100%;
-	height: 60px;
-	background-color: #fff;
+  position: absolute;
+  top: 0px;
+  width: 100%;
+  height: 60px;
+  background-color: #fff;
 }
+
 .nav-header-inner {
-	display: block;
+  display: block;
 }
+
 .navbar-wrapper {
-	width: 100%;
-	position: relative;
+  width: 100%;
+  position: relative;
 }
+
 .navbar-collapse-wrapper {
-	position: relative;
-	width: 1280px;
-	float: none;
-	display: block;
-	margin: 0px auto;
+  position: relative;
+  width: 1280px;
+  float: none;
+  display: block;
+  margin: 0px auto;
 }
+
 .navbar-btn-wrapper {
-	position: absolute;
-	right: 0px;
-	top: 0px;
+  position: absolute;
+  right: 0px;
+  top: 0px;
 }
+
 header .logo-wrapper {
-	display: table-cell;
-	width: auto;
+  display: table-cell;
+  width: auto;
 }
+
 header .logo .logo-dark {
-	visibility: visible;
-	opacity: 1;
-	width: auto;
+  visibility: visible;
+  opacity: 1;
+  width: auto;
 }
+
 header .global-link-wrapper {
-	position: absolute;
-	right: 0px;
-	top: 10px;
+  position: absolute;
+  right: 0px;
+  top: 10px;
 }
+
 header .global-link-wrapper ul li {
-	float: left;
-	margin: 0px 5px 0px 0px;
-	padding: 0px 5px 0px 2px;
+  float: left;
+  margin: 0px 5px 0px 0px;
+  padding: 0px 5px 0px 2px;
 }
+
 header .global-link-wrapper ul li:last-child {
-	margin: 0px;
-	padding: 0px;
+  margin: 0px;
+  padding: 0px;
 }
+
 header .global-link-wrapper ul li,
 header .global-link-wrapper ul li a {
-	display: block;
-	height: 40px;
-	line-height: 40px;
-	color: #1f1e1e;
-	font-size: 14px;
+  display: block;
+  height: 40px;
+  line-height: 40px;
+  color: #1f1e1e;
+  font-size: 14px;
 }
+
 header .global-link-wrapper ul li a.btn {
-	border-radius: 50px;
-	padding: 0px 14px;
+  border-radius: 50px;
+  padding: 0px 14px;
 }
+
 header .global-link-wrapper ul li a.top-btn {
-	padding-left: 30px;
+  padding-left: 30px;
 }
+
 header .global-link-wrapper ul li a.top-btn.btn-sitemap {
-	background: url(../img/common/icon/ico_top_btn_sitemap.png) no-repeat 0px 50%;
+  background: url(../img/common/icon/ico_top_btn_sitemap.png) no-repeat 0px 50%;
 }
+
 header .global-link-wrapper ul li a.top-btn.btn-mypage {
-	background: url(../img/common/icon/ico_top_btn_mypage.png) no-repeat 0px 50%;
+  background: url(../img/common/icon/ico_top_btn_mypage.png) no-repeat 0px 50%;
 }
+
 header .global-link-wrapper .ip-zone {
-	border-radius: 50px;
-	color: #001221;
-	background-color: #9cb4cd;
-	padding: 7px 20px;
-	font-size: 14px;
+  border-radius: 50px;
+  color: #001221;
+  background-color: #9cb4cd;
+  padding: 7px 20px;
+  font-size: 14px;
 }
+
 header .global-link-wrapper .username-zone {
-	display: block;
-	padding-left: 30px;
-	background: url(../img/common/icon/icon_avatar.png) no-repeat 0px 50%;
-	font-size: 14px;
+  display: block;
+  padding-left: 30px;
+  background: url(../img/common/icon/icon_avatar.png) no-repeat 0px 50%;
+  font-size: 14px;
 }
+
 header .global-link-wrapper .username {
-	color: #00c48a;
-	font-weight: bold;
+  color: #00c48a;
+  font-weight: bold;
 }
+
 header .global-link-wrapper ul li a.top-btn-member {
-	line-height: 28px;
-	height: 30px;
-	margin-top: 4px;
-	padding-left: 40px;
-	color: #fff;
+  line-height: 28px;
+  height: 30px;
+  margin-top: 4px;
+  padding-left: 40px;
+  color: #fff;
 }
+
 header .global-link-wrapper ul li a.btn.login-btn {
-	background: #00c48a url(../img/common/icon/ico_top_login.png) no-repeat 12px center;
+  background: #00c48a url(../img/common/icon/ico_top_login.png) no-repeat 12px center;
 }
+
 header .global-link-wrapper ul li a.btn.logout-btn {
-	background: #00c48a url(../img/common/icon/ico_top_logout.png) no-repeat 12px center;
+  background: #00c48a url(../img/common/icon/ico_top_logout.png) no-repeat 12px center;
 }
+
 header .global-link-wrapper ul li a.btn.member-btn {
-	background: #1e2929 url(../img/common/icon/ico_top_user.png) no-repeat 12px center;
+  background: #1e2929 url(../img/common/icon/ico_top_user.png) no-repeat 12px center;
 }
+
 header .global-link-wrapper ul li a.btn.secession-btn {
-	background: #1e2929 url(../img/common/icon/ico_top_secession.png) no-repeat 12px center;
+  background: #1e2929 url(../img/common/icon/ico_top_secession.png) no-repeat 12px center;
 }
+
 header .global-link-wrapper ul li a.btn.id-pw-btn {
-	background: #1e2929 url(../img/common/icon/ico_top_id_pw.png) no-repeat 12px center;
+  background: #1e2929 url(../img/common/icon/ico_top_id_pw.png) no-repeat 12px center;
 }
+
 header .header-right-menu {
-	display: block;
-	width: 80px;
-	height: 80px;
-	float: left;
+  display: block;
+  width: 80px;
+  height: 80px;
+  float: left;
 }
+
 header .header-right-menu.header-menu-all {
-	background: #00345f url(../img/common/icon/ico_header_menu_all.png) no-repeat 50% 50%;
+  background: #00345f url(../img/common/icon/ico_header_menu_all.png) no-repeat 50% 50%;
 }
+
 header .header-right-menu.header-menu-01 {
-	background: #00a999 url(../img/common/icon/ico_header_menu_01.png) no-repeat 50% 10px;
+  background: #00a999 url(../img/common/icon/ico_header_menu_01.png) no-repeat 50% 10px;
 }
+
 header .header-right-menu.header-menu-02 {
-	background: #02bdac url(../img/common/icon/ico_header_menu_02.png) no-repeat 50% 5px;
+  background: #02bdac url(../img/common/icon/ico_header_menu_02.png) no-repeat 50% 5px;
 }
+
 header .header-right-menu.header-menu-03 {
-	background: #13a7ce url(../img/common/icon/ico_header_menu_03.png) no-repeat 50% 10px;
+  background: #13a7ce url(../img/common/icon/ico_header_menu_03.png) no-repeat 50% 10px;
 }
+
 header .header-right-menu.header-menu-04 {
-	background: #3378c1 url(../img/common/icon/ico_header_menu_04.png) no-repeat 50% 8px;
+  background: #3378c1 url(../img/common/icon/ico_header_menu_04.png) no-repeat 50% 8px;
 }
+
 header .global-link-wrapper ul li a.btn.notice-btn {
-	background: #3378c1 url(../img/common/icon/ico_top_notice_02.png) no-repeat 12px center;
+  background: #3378c1 url(../img/common/icon/ico_top_notice_02.png) no-repeat 12px center;
 }
+
 .circulation-notice {
-	position: relative;
+  position: relative;
 }
+
 .circulation-notice .badge {
-	position: absolute;
-	top: -4px;
-	right: -4px;
-	font-size: 14px;
+  position: absolute;
+  top: -4px;
+  right: -4px;
+  font-size: 14px;
 }
+
 .badge-danger {
-	background-color: #ed6b75;
+  background-color: #ed6b75;
 }
+
 header .header-menu-text {
-	color: #fff;
-	font-size: 13px;
-	display: block;
-	width: 100%;
-	text-align: center;
-	padding-top: 44px;
-	line-height: 15px;
+  color: #fff;
+  font-size: 13px;
+  display: block;
+  width: 100%;
+  text-align: center;
+  padding-top: 44px;
+  line-height: 15px;
 }
+
 header .dropdown.simple-dropdown {
-	position: relative;
+  position: relative;
 }
+
 header .dropdown.simple-dropdown.on > a,
 header .dropdown.simple-dropdown:hover > a {
-	color: #00c48a !important;
+  color: #00c48a !important;
 }
+
 header .dropdown.simple-dropdown::before {
-	content: "";
-	position: absolute;
-	top: 0px;
-	left: 50%;
-	width: 0%;
-	height: 4px;
-	background-color: #00c48a;
-	transition-timing-function: ease-in-out;
-	-ms-transition-timing-function: ease-in-out;
-	-moz-transition-timing-function: ease-in-out;
-	-webkit-transition-timing-function: ease-in-out;
-	-o-transition-timing-function: ease-in-out;
-	transition-duration: .2s;
-	-ms-transition-duration: .2s;
-	-moz-transition-duration: .2s;
-	-webkit-transition-duration: .2s;
-	-o-transition-duration: .2s;
+  content: "";
+  position: absolute;
+  top: 0px;
+  left: 50%;
+  width: 0%;
+  height: 4px;
+  background-color: #00c48a;
+  transition-timing-function: ease-in-out;
+  -ms-transition-timing-function: ease-in-out;
+  -moz-transition-timing-function: ease-in-out;
+  -webkit-transition-timing-function: ease-in-out;
+  -o-transition-timing-function: ease-in-out;
+  transition-duration: 0.2s;
+  -ms-transition-duration: 0.2s;
+  -moz-transition-duration: 0.2s;
+  -webkit-transition-duration: 0.2s;
+  -o-transition-duration: 0.2s;
 }
+
 header .dropdown.simple-dropdown.on::before,
 header .dropdown.simple-dropdown:hover::before {
-	content: "";
-	left: 0%;
-	width: 100%;
+  content: "";
+  left: 0%;
+  width: 100%;
 }
-header .dropdown.simple-dropdown::after {
-	content: "";
-	position: absolute;
-	top: 30px;
-	left: -10px;
-    width: 18px;
-	height: 18px;
-	background:url(../img/common/bg/bg_nav_li_line.png) no-repeat left 50%;
-}
-header .dropdown.simple-dropdown:first-child::after {
-	background: none;
-}
-header .simple-dropdown .dropdown-menu > li > a {
-	font-size: 14px;
-	color: #e2e2e2;
-}
-header .simple-dropdown .dropdown-menu {
-	background: rgb(0, 52, 95);
-}
-nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li:hover {
-	background-color: #003f73;
-}
-header.sticky nav.navbar-fixed-top {
-	background-color: inherit;
-}
-header.sticky .nav-header-bg {
-	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
-}
-header.sticky .nav-header-line {
-	background-color: #f1f4f7;
-	height: 44px;
-}
-header.sticky .nav-header-container {
-	height: 114px;
-}
-header.sticky .navbar-global-wrapper {
-	height: 44px;
-	padding: 4px 0px;
-}
-header.sticky .global-link-wrapper {
-	top: 2px;
-}
-/* 시추 헤더 스타일 끝 */
 
+header .dropdown.simple-dropdown::after {
+  content: "";
+  position: absolute;
+  top: 30px;
+  left: -10px;
+  width: 18px;
+  height: 18px;
+  background: url(../img/common/bg/bg_nav_li_line.png) no-repeat left 50%;
+}
+
+header .dropdown.simple-dropdown:first-child::after {
+  background: none;
+}
+
+header .simple-dropdown .dropdown-menu > li > a {
+  font-size: 14px;
+  color: #e2e2e2;
+}
+
+header .simple-dropdown .dropdown-menu {
+  background: rgb(0, 52, 95);
+}
+
+nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li:hover {
+  background-color: #003f73;
+}
+
+header.sticky nav.navbar-fixed-top {
+  background-color: inherit;
+}
+
+header.sticky .nav-header-bg {
+  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
+}
+
+header.sticky .nav-header-line {
+  background-color: #f1f4f7;
+  height: 44px;
+}
+
+header.sticky .nav-header-container {
+  height: 114px;
+}
+
+header.sticky .navbar-global-wrapper {
+  height: 44px;
+  padding: 4px 0px;
+}
+
+header.sticky .global-link-wrapper {
+  top: 2px;
+}
+
+/* 시추 헤더 스타일 끝 */
 /* magnificPopup 커스텀 시작 */
 .mfp-wrap {
-	overflow: auto;
+  overflow: auto;
 }
+
 .mfp-container {
-	display: table;
-	padding: 0px;
+  display: table;
+  padding: 0px;
 }
+
 .mfp-container:before {
-	content: none;
+  content: none;
 }
+
 .mfp-close::after,
 .mfp-close::before {
-	background: #fff;
-	left: 12px;
-	top: 28px;
+  background: #fff;
+  left: 12px;
+  top: 28px;
 }
+
 .mfp-bg {
-	background: #fff;
+  background: #fff;
 }
+
 button.mfp-close,
 .mfp-close,
 .mfp-close:active {
-	position: fixed !important;
-	right: 0px;
-	top: 0px;
-	width: 60px;
-	height: 60px;
-	background-color: #000;
+  position: fixed !important;
+  right: 0px;
+  top: 0px;
+  width: 60px;
+  height: 60px;
+  background-color: #000;
 }
-.mfp-close:hover {
-	background-color: #3378c1;
-}
-/* magnificPopup 커스텀 끝 */
 
+.mfp-close:hover {
+  background-color: #3378c1;
+}
+
+/* magnificPopup 커스텀 끝 */
 /* magnificPopup - 전체메뉴 시작 */
 .menu-all-popup-wrapper .mfp-content.menu-all-popup-content {
-	display: table-cell;
-	vertical-align: middle;
+  display: table-cell;
+  vertical-align: middle;
 }
+
 .menu-all-popup-wrapper .menu-all-popup {
-	width: 1280px;
-	min-width: 1280px;
-	margin: 0px auto;
-	padding: 40px;
-	background-color: #fff;
-	border: 2px solid #000000;
-	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+  width: 1280px;
+  min-width: 1280px;
+  margin: 0px auto;
+  padding: 40px;
+  background-color: #fff;
+  border: 2px solid #000000;
+  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
 }
+
 .menu-all-popup-wrapper .menu-all-popup .contents-row {
-	padding: 40px;
+  padding: 40px;
 }
+
 .menu-all-popup-wrapper .menu-all-box {
-	border: 1px solid #b5b5b5;
-	margin: 10px;
+  border: 1px solid #b5b5b5;
+  margin: 10px;
 }
+
 .menu-all-popup-wrapper .menu-all-title {
-	border-bottom: 1px solid #ececec;
-	padding: 13px 30px;
-	background-color: #fbfbfb;
-	font-size: 20px;
+  border-bottom: 1px solid #ececec;
+  padding: 13px 30px;
+  background-color: #fbfbfb;
+  font-size: 20px;
 }
+
 .menu-all-popup-wrapper .menu-all-group {
-	padding-left: 30px;
+  padding-left: 30px;
 }
+
 .menu-all-popup-wrapper .menu-all-item {
-	padding-left: 18px;
-	margin: 10px 0px;
-	background:url(../img/common/bu/bu_menu_all_item.png) no-repeat left 50%;
+  padding-left: 18px;
+  margin: 10px 0px;
+  background: url(../img/common/bu/bu_menu_all_item.png) no-repeat left 50%;
 }
+
 .menu-all-popup .contents-title {
-	padding: 0px 140px 20px 140px;
-	margin: 0px;
+  padding: 0px 140px 20px 140px;
+  margin: 0px;
 }
+
 .menu-all-popup .contents-row {
-	padding: 0px !important;
+  padding: 0px !important;
 }
+
 /* magnificPopup - 전체메뉴 끝 */
-
-/* magnificPopup - 로그인 시작 */
-.login-popup-wrapper .mfp-content.login-popup-content {
-	display: table-cell;
-	vertical-align: middle;
-}
-.login-popup-wrapper .login-popup {
-	width: 500px;
-	min-width: 500px;
-	margin: 0px auto;
-	padding: 40px;
-	background-color: #fff;
-	border: 2px solid #000000;
-	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
-}
-.login-radio {
-	line-height: 50px;
-	border-top: 1px solid #000000;
-	border-bottom: 1px solid #000000;
-}
-/* magnificPopup - 로그인 끝 */
-
 /* magnificPopup - 임시 비밀번호 확인 시작 */
 .temp-password-popup-wrapper .mfp-content.temp-password-popup-content {
-	display: table-cell;
-	vertical-align: middle;
+  display: table-cell;
+  vertical-align: middle;
 }
-.temp-password-popup-wrapper .temp-password-popup {
-	width: 600px;
-	min-width: 500px;
-	margin: 0px auto;
-	padding: 40px;
-	background-color: #fff;
-	border: 2px solid #000000;
-	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
-}
-/* magnificPopup - 임시 비밀번호 확인 끝 */
 
+.temp-password-popup-wrapper .temp-password-popup {
+  width: 600px;
+  min-width: 500px;
+  margin: 0px auto;
+  padding: 40px;
+  background-color: #fff;
+  border: 2px solid #000000;
+  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+}
+
+/* magnificPopup - 임시 비밀번호 확인 끝 */
 /* magnificPopup - 시추정보 보유현황 시작 */
 .status-popup-wrapper .mfp-content.status-popup-content {
-	display: table-cell;
-	vertical-align: middle;
+  display: table-cell;
+  vertical-align: middle;
 }
+
 .status-popup-wrapper .status-popup {
-	width: 1280px;
-	min-width: 1280px;
-	margin: 0px auto;
-	padding: 40px;
-	background-color: #fff;
-	border: 2px solid #000000;
-	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+  width: 1280px;
+  min-width: 1280px;
+  margin: 0px auto;
+  padding: 40px;
+  background-color: #fff;
+  border: 2px solid #000000;
+  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
 }
+
 /* magnificPopup - 시추정보 보유현황 끝 */
-/* ===================================
-	메뉴 재정의 끝
-====================================== */
-
-
-/* ===================================
-	풋터 시작
-====================================== */
-.page-footer { position: relative; height: 100px; background-color: #fff; border-top:1px solid #b8bfc6; padding: 15px 0px; font-size: 12px; clear: both; }
-.page-footer .page-footer-inner { margin-top: 5px; margin: 0px auto; }
-.page-footer .page-footer-inner .page-footer-logo { float: left; margin-top: 5px; }
-.page-footer .page-footer-inner .page-footer-container { position: absolute; display: inline-block; margin-left: 20px; }
-.page-footer .page-footer-inner .page-footer-container span {line-height: 16px;}
-.page-footer .page-footer-inner .page-footer-container .address { display: block; font-weight: bold; }
-.page-footer .page-footer-inner .page-footer-container .tel { display: block; font-weight: bold; }
-.page-footer .page-footer-inner .page-footer-container .copyright { display: block; color: #8d8d8d; }
-.page-footer .page-footer-link { position: relative; float: right; width: 528px; }
-.page-footer .page-footer-link .page-footer-info { position: absolute; top: 0px; right: 0px; font-weight: bold; }
-.page-footer .page-footer-link .page-footer-info li { float: left; margin-left: 10px; padding-left: 15px; background: url(../img/common/bu/bu_footer_link.png) no-repeat left 40%; }
-.page-footer .page-footer-link .page-footer-info li:first-child { background: none; }
-.page-footer .page-footer-link .page-footer-institution { position: absolute; top: 26px; right: 0px; }
-.page-footer .page-footer-link .page-footer-institution .page-footer-select-set { float: left; margin-left: 10px; }
-.page-footer .page-footer-link .page-footer-institution .page-footer-select-set .select-container { float: left; }
-.page-footer .page-footer-link .page-footer-institution .page-footer-select-set button { margin-left: 4px; }
-/* ===================================
-	풋터 끝
-====================================== */
-
-
-/* ===================================
-	메인 레이아웃 시작
-====================================== */
-.main section {
-	padding: 0px 0px;
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+.page-footer {
+  position: relative;
+  height: 100px;
+  background-color: #fff;
+  border-top: 1px solid #b8bfc6;
+  padding: 15px 0px;
+  font-size: 12px;
+  clear: both;
 }
+
+.page-footer .page-footer-inner {
+  margin-top: 5px;
+  margin: 0px auto;
+}
+
+.page-footer .page-footer-inner .page-footer-logo {
+  float: left;
+  margin-top: 5px;
+}
+
+.page-footer .page-footer-inner .page-footer-container {
+  position: absolute;
+  display: inline-block;
+  margin-left: 20px;
+}
+
+.page-footer .page-footer-inner .page-footer-container span {
+  line-height: 16px;
+}
+
+.page-footer .page-footer-inner .page-footer-container .address {
+  display: block;
+  font-weight: bold;
+}
+
+.page-footer .page-footer-inner .page-footer-container .tel {
+  display: block;
+  font-weight: bold;
+}
+
+.page-footer .page-footer-inner .page-footer-container .copyright {
+  display: block;
+  color: #8d8d8d;
+}
+
+.page-footer .page-footer-link {
+  position: relative;
+  float: right;
+  width: 528px;
+}
+
+.page-footer .page-footer-link .page-footer-info {
+  position: absolute;
+  top: 0px;
+  right: 0px;
+  font-weight: bold;
+}
+
+.page-footer .page-footer-link .page-footer-info li {
+  float: left;
+  margin-left: 10px;
+  padding-left: 15px;
+  background: url(../img/common/bu/bu_footer_link.png) no-repeat left 40%;
+}
+
+.page-footer .page-footer-link .page-footer-info li:first-child {
+  background: none;
+}
+
+.page-footer .page-footer-link .page-footer-institution {
+  position: absolute;
+  top: 26px;
+  right: 0px;
+}
+
+.page-footer .page-footer-link .page-footer-institution .page-footer-select-set {
+  float: left;
+  margin-left: 10px;
+}
+
+.page-footer .page-footer-link .page-footer-institution .page-footer-select-set .select-container {
+  float: left;
+}
+
+.page-footer .page-footer-link .page-footer-institution .page-footer-select-set button {
+  margin-left: 4px;
+}
+
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+.main section {
+  padding: 0px 0px;
+}
+
 .main .contents-row {
-	margin: 0px auto;
-	padding: 34px 0px;
-	z-index: 2;
+  margin: 0px auto;
+  padding: 34px 0px;
+  z-index: 2;
 }
 
 /* 시추 메인비쥬얼 시작 */
 .parallax-container {
-	position: absolute;
-	width: 100%;
-	height: 100%;
-	right: 0;
-	left: 0;
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  right: 0;
+  left: 0;
 }
-.visual-middle-main {
-	position: relative;
-	display: table;
-	height: 100%;
-	width: 100%;
-}
-.visual-bottom-group {
-	position: relative;
-	display: table-cell;
-	vertical-align: bottom;
-}
-.visual-btn-group {
-	height: 220px;
-	width: 100%;
-	background-color: #3378c1;
-	background-image: linear-gradient(141deg, #3378c1 0%, #40abcc 50%, #4ad1d4 80%);
-}
-.visual-user-count-wrapper {
-	position: absolute;
-	top: 180px;
-	width: 100%;
-	z-index: 1;
-}
-.visual-user-count-group {
-	margin: 0px auto;
-}
-.visual-user-count-group .user-count-box {
-	position: relative;
-	width: 300px;
-	font-size: 20px;
-	background-color: #4ad0d4;
-	border-radius: 50px;
-	clear: both;
-	float: right;
-	padding: 4px 20px 4px 0px;
-	margin-bottom: 8px;
-}
-.visual-user-count-group .user-count-box .count-title {
-	background-color: #3378c1;
-	border-radius: 50px;
-	color: #fff;
-	padding: 5px 20px;
-}
-.visual-user-count-group .user-count-box .user-count {
-	float: right;
-	color: #00345f;
-	font-weight: bold;
-}
-.visual-status-count-group {
-	margin: 0px auto;
-}
-.visual-status-count-group .status-count-box {
-	position: relative;
-	width: 660px;
-	height: 55px;
-	font-size: 26px;
-	background-color: #3378c1;
-	background-image: linear-gradient(141deg, #3378c1 0%, #40abcc 50%, #4ad1d4 80%);
-	border-radius: 50px;
-	clear: both;
-	float: right;
-	padding: 4px 4px 4px 20px;
-	margin-top: -30px;
-	z-index: 1;
-}
-.visual-status-count-group .status-count-box .count-title {
-	color: #fff;
-	padding: 12px 20px;
-	display: block;
-	float: left;
-}
-.visual-status-count-group .status-count-box .status-count {
-	color: #00345f;
-	font-weight: bold;
-	vertical-align: middle;
-}
-.visual-status-count-group .status-count-box .value-group {
-	float: right;
-}
-.visual-status-count-group .status-count-box .status-btn {
-	color: #00345f;
-	line-height: 32px;
-	height: 47px;
-	padding-left: 26px;
-	padding-right: 65px;
-	margin-left: 10px;
-	border-radius: 50px;
-	font-size: 20px;
-	background: #fff url(../img/common/icon/ico_parallax_status_btn.png) no-repeat 130px center;
-}
-.visual-btn-group .visual-btn-inner {
-	position: relative;
-	margin: 0px auto;
-}
-.visual-btn-group .visual-btn-inner .visual-btn-align {
-	position: absolute;
-	top: 30px;
-	right: 0px;
-	z-index: 1;
-}
-.visual-btn-group .parallax-btn-text {
-	display: block;
-	line-height: 16px;
-	font-size: 14px;
-	text-align: center;
-	color: #fff;
-	margin-top: 108px;
-}
-.visual-btn-group .visual-btn-box {
-	width: 100px;
-	height: 100px;
-	float: left;
-	border-radius: 10px;
-	margin-left: 30px;
-	cursor: pointer;
-	background-color: rgba(0, 125, 169, 0.6);
-	background-repeat: no-repeat;
-	background-position: 50% 50%;
-}
-.visual-btn-box.visual-btn-01 {
-	background-image: url(../img/common/icon/ico_parallax_btn_01.png);
-}
-.visual-btn-box.visual-btn-02 {
-	background-image: url(../img/common/icon/ico_parallax_btn_02.png);
-}
-.visual-btn-box.visual-btn-03 {
-	background-image: url(../img/common/icon/ico_parallax_btn_03.png);
-}
-.visual-btn-box.visual-btn-04 {
-	background-image: url(../img/common/icon/ico_parallax_btn_04.png);
-}
-.visual-btn-box.visual-btn-05 {
-	background-image: url(../img/common/icon/ico_parallax_btn_05.png);
-}
-.visual-btn-box.visual-btn-06 {
-	background-image: url(../img/common/icon/ico_parallax_btn_06.png);
-}
-.main-slogan {
-	position: absolute;
-	left: 40%;
-	top: 18%;
-	width: 360px;
-	height: 128px;
-	background:url(../img/common/bg/main_parallax_text.png) no-repeat 0px 0px;
-}
-.main-img-map {
-	position: absolute;
-	left: 0px;
-	bottom: 31px;
-	width: 100%;
-	height: 777px;
-	background:url(../img/common/bg/main_parallax_img_map.png) no-repeat 50% 0px;
-}
-.main-img-child {
-	position: absolute;
-	left: 10%;
-	top: -5%;
-	width: 335px;
-	height: 1162px;
-	background:url(../img/common/bg/main_parallax_img_child.png) no-repeat 0px 0px;
-}
-/* 시추 메인비쥬얼 끝 */
 
+.visual-middle-main {
+  position: relative;
+  display: table;
+  height: 100%;
+  width: 100%;
+}
+
+.visual-bottom-group {
+  position: relative;
+  display: table-cell;
+  vertical-align: bottom;
+}
+
+.visual-btn-group {
+  height: 220px;
+  width: 100%;
+  background-color: #3378c1;
+  background-image: linear-gradient(141deg, #3378c1 0%, #40abcc 50%, #4ad1d4 80%);
+}
+
+.visual-user-count-wrapper {
+  position: absolute;
+  top: 180px;
+  width: 100%;
+  z-index: 1;
+}
+
+.visual-user-count-group {
+  margin: 0px auto;
+}
+
+.visual-user-count-group .user-count-box {
+  position: relative;
+  width: 300px;
+  font-size: 20px;
+  background-color: #4ad0d4;
+  border-radius: 50px;
+  clear: both;
+  float: right;
+  padding: 4px 20px 4px 0px;
+  margin-bottom: 8px;
+}
+
+.visual-user-count-group .user-count-box .count-title {
+  background-color: #3378c1;
+  border-radius: 50px;
+  color: #fff;
+  padding: 5px 20px;
+}
+
+.visual-user-count-group .user-count-box .user-count {
+  float: right;
+  color: #00345f;
+  font-weight: bold;
+}
+
+.visual-status-count-group {
+  margin: 0px auto;
+}
+
+.visual-status-count-group .status-count-box {
+  position: relative;
+  width: 660px;
+  height: 55px;
+  font-size: 26px;
+  background-color: #3378c1;
+  background-image: linear-gradient(141deg, #3378c1 0%, #40abcc 50%, #4ad1d4 80%);
+  border-radius: 50px;
+  clear: both;
+  float: right;
+  padding: 4px 4px 4px 20px;
+  margin-top: -30px;
+  z-index: 1;
+}
+
+.visual-status-count-group .status-count-box .count-title {
+  color: #fff;
+  padding: 12px 20px;
+  display: block;
+  float: left;
+}
+
+.visual-status-count-group .status-count-box .status-count {
+  color: #00345f;
+  font-weight: bold;
+  vertical-align: middle;
+}
+
+.visual-status-count-group .status-count-box .value-group {
+  float: right;
+}
+
+.visual-status-count-group .status-count-box .status-btn {
+  color: #00345f;
+  line-height: 32px;
+  height: 47px;
+  padding-left: 26px;
+  padding-right: 65px;
+  margin-left: 10px;
+  border-radius: 50px;
+  font-size: 20px;
+  background: #fff url(../img/common/icon/ico_parallax_status_btn.png) no-repeat 130px center;
+}
+
+.visual-btn-group .visual-btn-inner {
+  position: relative;
+  margin: 0px auto;
+}
+
+.visual-btn-group .visual-btn-inner .visual-btn-align {
+  position: absolute;
+  top: 30px;
+  right: 0px;
+  z-index: 1;
+}
+
+.visual-btn-group .parallax-btn-text {
+  display: block;
+  line-height: 16px;
+  font-size: 14px;
+  text-align: center;
+  color: #fff;
+  margin-top: 108px;
+}
+
+.visual-btn-group .visual-btn-box {
+  width: 100px;
+  height: 100px;
+  float: left;
+  border-radius: 10px;
+  margin-left: 30px;
+  cursor: pointer;
+  background-color: rgba(0, 125, 169, 0.6);
+  background-repeat: no-repeat;
+  background-position: 50% 50%;
+}
+
+.visual-btn-box.visual-btn-01 {
+  background-image: url(../img/common/icon/ico_parallax_btn_01.png);
+}
+
+.visual-btn-box.visual-btn-02 {
+  background-image: url(../img/common/icon/ico_parallax_btn_02.png);
+}
+
+.visual-btn-box.visual-btn-03 {
+  background-image: url(../img/common/icon/ico_parallax_btn_03.png);
+}
+
+.visual-btn-box.visual-btn-04 {
+  background-image: url(../img/common/icon/ico_parallax_btn_04.png);
+}
+
+.visual-btn-box.visual-btn-05 {
+  background-image: url(../img/common/icon/ico_parallax_btn_05.png);
+}
+
+.visual-btn-box.visual-btn-06 {
+  background-image: url(../img/common/icon/ico_parallax_btn_06.png);
+}
+
+.main-slogan {
+  position: absolute;
+  left: 40%;
+  top: 18%;
+  width: 360px;
+  height: 128px;
+  background: url(../img/common/bg/main_parallax_text.png) no-repeat 0px 0px;
+}
+
+.main-img-map {
+  position: absolute;
+  left: 0px;
+  bottom: 31px;
+  width: 100%;
+  height: 777px;
+  background: url(../img/common/bg/main_parallax_img_map.png) no-repeat 50% 0px;
+}
+
+.main-img-child {
+  position: absolute;
+  left: 10%;
+  top: -5%;
+  width: 335px;
+  height: 1162px;
+  background: url(../img/common/bg/main_parallax_img_child.png) no-repeat 0px 0px;
+}
+
+/* 시추 메인비쥬얼 끝 */
 /* ==== main flexslider 커스텀 시작 ==== */
 /* flexslider 기본 시작 */
-.flexslider-wrapper {
-
-}
 .flexslider {
-	height: auto !important;
-	overflow: visible;
-	background: none;
+  height: auto !important;
+  overflow: visible;
+  background: none;
 }
+
 .flex-control-paging li a {
-	background:#dadada;
+  background: #dadada;
 }
 
 .flex-control-paging li a.flex-active {
-	background: #1db7f0;
+  background: #1db7f0;
 }
+
 .flex-control-nav li {
-	margin:0 4px;
+  margin: 0 4px;
 }
+
 .flex-direction-nav a {
-	margin: -30px 0 0 !important;
+  margin: -30px 0 0 !important;
 }
+
 .flex-viewport {
-	overflow: hidden !important;
-	width: auto;
+  overflow: hidden !important;
+  width: auto;
 }
+
 .flexslider .slides img {
-	display: inline;
+  display: inline;
 }
+
 .flex-control-paging li a {
-	width: 24px;
-	height: 8px;
+  width: 24px;
+  height: 8px;
 }
+
 .flex-control-nav {
-	top: -20px;
-	right: 90px;
-	width: auto;
-	height: 20px;
+  top: -20px;
+  right: 90px;
+  width: auto;
+  height: 20px;
 }
+
 .flex-direction-nav a {
-	width: 41px;
-	height: 41px;
+  width: 41px;
+  height: 41px;
 }
+
 .flex-direction-nav a:before {
-	background: url(../img/common/btn/flex_prev_btn.png) no-repeat 0% 50%;
-	width: 41px;
-	height: 41px;
+  background: url(../img/common/btn/flex_prev_btn.png) no-repeat 0% 50%;
+  width: 41px;
+  height: 41px;
 }
+
 .flex-direction-nav a:hover:before {
-	background: url(../img/common/btn/flex_prev_btn_over.png) no-repeat 0% 50%;
+  background: url(../img/common/btn/flex_prev_btn_over.png) no-repeat 0% 50%;
 }
+
 .flex-direction-nav a.flex-next:before {
-	background: url(../img/common/btn/flex_next_btn.png) no-repeat 100% 50%;
-	width: 41px;
-	height: 41px;
+  background: url(../img/common/btn/flex_next_btn.png) no-repeat 100% 50%;
+  width: 41px;
+  height: 41px;
 }
+
 .flex-direction-nav a.flex-next:hover:before {
-	background: url(../img/common/btn/flex_next_btn_over.png) no-repeat 100% 50%;
+  background: url(../img/common/btn/flex_next_btn_over.png) no-repeat 100% 50%;
 }
+
 .flex-pauseplay {
-	position: absolute;
-	top: -3px;
-	right: 92px;
+  position: absolute;
+  top: -3px;
+  right: 92px;
 }
+
 .flex-pauseplay a,
 .flex-pauseplay a::before {
-	font-family: inherit !important;
-	font-size: 0px !important;
-	display: inherit !important;
-	content: inherit !important;
+  font-family: inherit !important;
+  font-size: 0px !important;
+  display: inherit !important;
+  content: inherit !important;
 }
-.flex-pauseplay a.flex-play {
-	background: url(../img/common/btn/flex_play.png) no-repeat 50% 50% !important;
-}
-.flex-pauseplay a.flex-pause {
-	background: url(../img/common/btn/flex_pause.png) no-repeat 50% 50% !important;
-}
-/* flexslider 기본 끝 */
 
+.flex-pauseplay a.flex-play {
+  background: url(../img/common/btn/flex_play.png) no-repeat 50% 50% !important;
+}
+
+.flex-pauseplay a.flex-pause {
+  background: url(../img/common/btn/flex_pause.png) no-repeat 50% 50% !important;
+}
+
+/* flexslider 기본 끝 */
 /* 공지사항 바로가기 flexslider 시작 */
 .main .contents-row.main-notice {
-	width: 1400px;
+  width: 1400px;
 }
-.main-notice .main-con-link-box {
-	display: flex;
-	flex-grow: 1;
-	-webkit-box-flex: 1;
-	-ms-flex: 1;
-}
-.main-notice .main-con-link {
-	position:relative;
-	float: left;
-	padding-left: 25px;
-	cursor:pointer;
-}
-.main-notice .main-con-link:first-child {
-	padding-left: 0px;
-}
-.main-notice .main-con {
-	position:relative;
-	width: 400px;
-	height: 240px;
-	margin: 5px !important;
-}
-.main-notice .main-con-link .main-con-box {
-	position: absolute;
-	top: 0px;
-	left: 0px;
-	width: 400px;
-	height: 240px;
-	padding: 30px 26px;
-	background-color: #fff;
-}
-.main-notice .main-con-link .main-con-box:hover {
-	top: -5px;
-	left: -5px;
-	border: 2px solid #19b3e5;
-	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
-	z-index: 2;
-}
-.main-notice .main-con-box-inner {
-	position: relative;
-	width: 100%;
-	height: 100%;
-}
-.main-notice .main-con-link .main-con-link-title {
-	font-size: 16px;
-	margin-bottom: 20px;
-	font-weight: bold;
-}
-.main-notice .main-con-link .main-con-link-content {
-	color: #5b6368;
-}
-.main-notice .main-con-link .main-con-link-date {
-	position: absolute;
-	bottom: 0px;
-	margin-top: 15px;
-	color: #82878b;
-}
-.main-notice .flex-viewport {
-	margin: 0px 60px;
-	padding-bottom: 20px;
-	height: 270px;
-}
-.main-notice .flex-direction-nav .flex-prev {
-	top:50%;
-	left:0px !important;
-	opacity:1 !important;
-}
-.main-notice .flex-direction-nav .flex-next {
-	top:50%;
-	left:auto !important;
-	right:0px !important;
-	opacity:1 !important;
-}
-/* 공지사항 바로가기 flexslider 끝 */
 
+.main-notice .main-con-link-box {
+  display: flex;
+  flex-grow: 1;
+  -webkit-box-flex: 1;
+  -ms-flex: 1;
+}
+
+.main-notice .main-con-link {
+  position: relative;
+  float: left;
+  padding-left: 25px;
+  cursor: pointer;
+}
+
+.main-notice .main-con-link:first-child {
+  padding-left: 0px;
+}
+
+.main-notice .main-con {
+  position: relative;
+  width: 400px;
+  height: 240px;
+  margin: 5px !important;
+}
+
+.main-notice .main-con-link .main-con-box {
+  position: absolute;
+  top: 0px;
+  left: 0px;
+  width: 400px;
+  height: 240px;
+  padding: 30px 26px;
+  background-color: #fff;
+}
+
+.main-notice .main-con-link .main-con-box:hover {
+  top: -5px;
+  left: -5px;
+  border: 2px solid #19b3e5;
+  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
+  z-index: 2;
+}
+
+.main-notice .main-con-box-inner {
+  position: relative;
+  width: 100%;
+  height: 100%;
+}
+
+.main-notice .main-con-link .main-con-link-title {
+  font-size: 16px;
+  margin-bottom: 20px;
+  font-weight: bold;
+}
+
+.main-notice .main-con-link .main-con-link-content {
+  color: #5b6368;
+}
+
+.main-notice .main-con-link .main-con-link-date {
+  position: absolute;
+  bottom: 0px;
+  margin-top: 15px;
+  color: #82878b;
+}
+
+.main-notice .flex-viewport {
+  margin: 0px 60px;
+  padding-bottom: 20px;
+  height: 270px;
+}
+
+.main-notice .flex-direction-nav .flex-prev {
+  top: 50%;
+  left: 0px !important;
+  opacity: 1 !important;
+}
+
+.main-notice .flex-direction-nav .flex-next {
+  top: 50%;
+  left: auto !important;
+  right: 0px !important;
+  opacity: 1 !important;
+}
+
+/* 공지사항 바로가기 flexslider 끝 */
 /* 관련 사이트 배너 flexslider 시작 */
 .main .contents-row.main-banner-wrapper {
-	width: 1400px;
+  width: 1400px;
 }
-.main-banner-wrapper .flexslider-wrapper {
 
-}
 .main-banner-wrapper .main-con-link {
-	position:relative;
-	width: 124px;
-	float: left;
-	text-align: center;
-	cursor:pointer;
-	margin-bottom: 10px;
+  position: relative;
+  width: 124px;
+  float: left;
+  text-align: center;
+  cursor: pointer;
+  margin-bottom: 10px;
 }
+
 .main-banner-wrapper .main-con-box.main-box-center .main-con-link {
-	width: 25%;
-	margin: 0px;
-	padding-top: 20px;
+  width: 25%;
+  margin: 0px;
+  padding-top: 20px;
 }
+
 .main-banner-wrapper .main-con-link:first-child::before {
-	border-left: 0px;
+  border-left: 0px;
 }
+
 .main-banner-wrapper .main-con-link .main-con-link-title {
-	margin-top: 5px;
-	font-size: 15px;
-	height: 60px;
+  margin-top: 5px;
+  font-size: 15px;
+  height: 60px;
 }
+
 .main-banner-wrapper .flex-viewport {
-	margin: 0px 60px;
-	padding-bottom: 20px;
+  margin: 0px 60px;
+  padding-bottom: 20px;
 }
+
 .main-banner-wrapper .flex-direction-nav .flex-prev {
-	top:50%;
-	left:0px !important;
-	opacity:1 !important;
+  top: 50%;
+  left: 0px !important;
+  opacity: 1 !important;
 }
+
 .main-banner-wrapper .flex-direction-nav .flex-next {
-	top:50%;
-	left:auto !important;
-	right:0px !important;
-	opacity:1 !important;
+  top: 50%;
+  left: auto !important;
+  right: 0px !important;
+  opacity: 1 !important;
 }
+
 /* 관련 사이트 배너 flexslider 끝 */
 /* ==== main flexslider 커스텀 끝 ==== */
-
 /* 문의 연락처 시작 */
 .contact-box {
-	height: 240px;
-	padding: 30px;
+  height: 240px;
+  padding: 30px;
 }
-.contact-title {
-	font-size: 26px;
-	font-weight: bold;
-	margin-bottom: 26px;
-}
-.contact-text {
-	margin-left: 120px;
-	margin-bottom: 5px;
-	font-size: 20px;
-}
-.contact-box-02 .contact-text {
-   padding-top: 28px;
-}
-.contact-text p {
-   padding-bottom: 12px;
-}
-.contact-text-title {
-   padding: 4px 24px;
-   margin-right: 10px;
-   border-radius: 50px;
-}
-.contact-box.contact-box-01 {
-   margin-right: 16px;
-   background-color: #e2f1f9;
-   background-image: url(../img/common/bg/main_contact_box_01.png);
-   background-repeat: no-repeat;
-   background-position: 30px 100px;
-}
-.contact-box.contact-box-01 .text-primary {
-   color: #0081ce;
-}
-.contact-box.contact-box-01 .contact-text-title {
-   background-color: #8fd8ff;
-}
-.contact-box.contact-box-02 {
-   margin-left: 16px;
-   background-color: #eff9eb;
-   background-image: url(../img/common/bg/main_contact_box_02.png);
-   background-repeat: no-repeat;
-   background-position: 30px 100px;
-}
-.contact-box.contact-box-02 .text-primary {
-	color: #207167;
-}
-.contact-box.contact-box-02 .contact-text-title {
-	background-color: #9ceacf;
-}
-/* 문의 연락처 끝 */
 
+.contact-title {
+  font-size: 26px;
+  font-weight: bold;
+  margin-bottom: 26px;
+}
+
+.contact-text {
+  margin-left: 120px;
+  margin-bottom: 5px;
+  font-size: 20px;
+}
+.contact-text .contact-text-con > .second-tel {
+  padding-left: 178px;
+}
+
+.contact-box-02 .contact-text {
+  padding-top: 0px;
+}
+
+.contact-text p {
+  padding-bottom: 12px;
+}
+
+.contact-text-title {
+  padding: 4px 24px;
+  margin-right: 10px;
+  border-radius: 50px;
+}
+
+.contact-box.contact-box-01 {
+  margin-right: 16px;
+  background-color: #e2f1f9;
+  background-image: url(../img/common/bg/main_contact_box_01.png);
+  background-repeat: no-repeat;
+  background-position: 30px 100px;
+}
+
+.contact-box.contact-box-01 .text-primary {
+  color: #0081ce;
+}
+
+.contact-box.contact-box-01 .contact-text-title {
+  background-color: #8fd8ff;
+}
+
+.contact-box.contact-box-02 {
+  margin-left: 16px;
+  background-color: #eff9eb;
+  background-image: url(../img/common/bg/main_contact_box_02.png);
+  background-repeat: no-repeat;
+  background-position: 30px 100px;
+}
+
+.contact-box.contact-box-02 .text-primary {
+  color: #207167;
+}
+
+.contact-box.contact-box-02 .contact-text-title {
+  background-color: #9ceacf;
+}
+
+/* 문의 연락처 끝 */
 /* 비쥬얼영역 - 2차 시작 */
 .main-info-container {
-	margin-top: 140px;
-	margin-bottom: 30px;
+  margin-top: 140px;
+  margin-bottom: 30px;
 }
+
 .main-info-wrapper {
-	width: 1280px;
-	margin: 35px auto 0px auto;
+  width: 1280px;
+  margin: 35px auto 0px auto;
 }
+
 .main-info-wrapper .main-info-left {
-	float: left;
+  float: left;
 }
+
 .main-info-wrapper .main-info-right {
-	float: right;
-	width: 378px;
+  float: right;
+  width: 378px;
 }
+
 .main-info-wrapper .main-info-left {
-	width: 853px;
+  width: 853px;
 }
+
 .main-info-wrapper .status-count-box {
-	position: relative;
-	width: 100%;
-	height: 75px;
-	font-size: 26px;
-	background-color: #d0e3f1;
-	border-radius: 10px;
-	padding: 4px 4px 4px 20px;
-	margin-top: 23px;
+  position: relative;
+  width: 100%;
+  height: 75px;
+  font-size: 26px;
+  background-color: #d0e3f1;
+  border-radius: 10px;
+  padding: 4px 4px 4px 20px;
+  margin-top: 23px;
 }
+
 .main-info-wrapper .status-count-box .count-title {
-	position: absolute;
-	left: 0px;
-	top: 0px;
-	height: 75px;
-	line-height: 75px;
-	display: block;
-	background:#3378c1 url(../img/common/bg/bg_main_info_icon_01.png) no-repeat 25px 50%;
-	border-radius: 10px;
-	padding: 0px 30px 0px 110px;
-	color: #fff;
-	font-weight: bold;
+  position: absolute;
+  left: 0px;
+  top: 0px;
+  height: 75px;
+  line-height: 75px;
+  display: block;
+  background: #3378c1 url(../img/common/bg/bg_main_info_icon_01.png) no-repeat 25px 50%;
+  border-radius: 10px;
+  padding: 0px 30px 0px 110px;
+  color: #fff;
+  font-weight: bold;
 }
+
 .main-info-wrapper .status-count-box .value-group {
-	position: absolute;
-	top: 13px;
-	right: 20px;
+  position: absolute;
+  top: 13px;
+  right: 20px;
 }
+
 .main-info-wrapper .status-count-box .status-count {
-	color: #00345f;
-    font-weight: bold;
-	vertical-align: middle;
-	line-height: 50px;
+  color: #00345f;
+  font-weight: bold;
+  vertical-align: middle;
+  line-height: 50px;
 }
+
 .main-info-wrapper .status-count-box .status-btn {
-	color: #00345f;
-    line-height: 32px;
-    height: 47px;
-    padding-left: 26px;
-    padding-right: 65px;
-    margin-left: 10px;
-    border-radius: 50px;
-    font-size: 20px;
-    background: #fff url(../img/common/icon/ico_parallax_status_btn.png) no-repeat 130px center;
+  color: #00345f;
+  line-height: 32px;
+  height: 47px;
+  padding-left: 26px;
+  padding-right: 65px;
+  margin-left: 10px;
+  border-radius: 50px;
+  font-size: 20px;
+  background: #fff url(../img/common/icon/ico_parallax_status_btn.png) no-repeat 130px center;
 }
+
 .flexslider-visual-wrapper {
-	position: relative;
+  position: relative;
 }
+
 .flexslider-visual-wrapper .flex-control-nav {
-	width: 100%;
-	top: auto;
-	bottom: 10px;
-	right: auto;
+  width: 100%;
+  top: auto;
+  bottom: 10px;
+  right: auto;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay {
-	top: auto;
-	bottom: 10px;
-	right: 80px;
+  top: auto;
+  bottom: 10px;
+  right: 80px;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav .flex-prev {
-	top: auto;
-    left: auto;
-    opacity: 1 !important;
-    right: 74px;
-    bottom: 15px;
+  top: auto;
+  left: auto;
+  opacity: 1 !important;
+  right: 74px;
+  bottom: 15px;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav .flex-next {
-	top: auto;
-    left: auto !important;
-    right: 16px !important;
-    opacity: 1 !important;
-    bottom: 15px;
+  top: auto;
+  left: auto !important;
+  right: 16px !important;
+  opacity: 1 !important;
+  bottom: 15px;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav a {
-	width: 25px;
-	height: 25px;
-	margin: 0px !important;
+  width: 25px;
+  height: 25px;
+  margin: 0px !important;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav a.flex-next:before {
-	background: url(../img/common/btn/flex_visual_next_btn.png) no-repeat 100% 50%;
-    width: 25px;
-    height: 25px;
+  background: url(../img/common/btn/flex_visual_next_btn.png) no-repeat 100% 50%;
+  width: 25px;
+  height: 25px;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav a:hover.flex-next:before {
-	background: url(../img/common/btn/flex_visual_next_btn_over.png) no-repeat 100% 50%;
+  background: url(../img/common/btn/flex_visual_next_btn_over.png) no-repeat 100% 50%;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav a:before {
-	background: url(../img/common/btn/flex_visual_prev_btn.png) no-repeat 0% 50%;
-    width: 25px;
-    height: 25px;
+  background: url(../img/common/btn/flex_visual_prev_btn.png) no-repeat 0% 50%;
+  width: 25px;
+  height: 25px;
 }
+
 .flexslider-visual-wrapper .flex-direction-nav a:hover:before {
-	background: url(../img/common/btn/flex_visual_prev_btn_over.png) no-repeat 0% 50%;
+  background: url(../img/common/btn/flex_visual_prev_btn_over.png) no-repeat 0% 50%;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay a {
-	width: 25px;
-	height: 25px;
-	opacity:1 !important;
+  width: 25px;
+  height: 25px;
+  opacity: 1 !important;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay a.flex-disabled {
-	display: none  !important;
+  display: none !important;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay a.flex-pause {
-	background: url(../img/common/btn/flex_visual_pause.png) no-repeat 50% 50% !important;
+  background: url(../img/common/btn/flex_visual_pause.png) no-repeat 50% 50% !important;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay a:hover.flex-pause {
-	background: url(../img/common/btn/flex_visual_pause_over.png) no-repeat 50% 50% !important;
+  background: url(../img/common/btn/flex_visual_pause_over.png) no-repeat 50% 50% !important;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay a.flex-play {
-	background: url(../img/common/btn/flex_visual_play.png) no-repeat 50% 50% !important;
+  background: url(../img/common/btn/flex_visual_play.png) no-repeat 50% 50% !important;
 }
+
 .flexslider-visual-wrapper .flex-pauseplay a:hover.flex-play {
-	background: url(../img/common/btn/flex_visual_play_over.png) no-repeat 50% 50% !important;
+  background: url(../img/common/btn/flex_visual_play_over.png) no-repeat 50% 50% !important;
 }
+
 .flexslider-visual-wrapper .flex-control-paging li a {
-	width: 14px;
-	height: 14px;
-	background: none;
-	border: 4px solid #fff;
+  width: 14px;
+  height: 14px;
+  background: none;
+  border: 4px solid #fff;
 }
+
 .flexslider-visual-wrapper .flex-control-paging li a:hover {
-	border: 4px solid #000;
+  border: 4px solid #000;
 }
+
 .flexslider-visual-wrapper .flex-control-paging li a.flex-active {
-	background: #fff;
-	width: 30px;
-	height: 14px;
+  background: #fff;
+  width: 30px;
+  height: 14px;
 }
+
 .flexslider-visual-wrapper .flex-control-paging li a:hover.flex-active {
-	background: #000;
+  background: #000;
 }
+
 .flexslider-visual .flex-viewport,
 .main-info-board-wrapper {
-	height: 330px;
-	border-radius: 10px;
+  height: 330px;
+  border-radius: 10px;
 }
+
 .main-info-board-wrapper {
-	position: relative;
-	border: 1px solid #c6c6c6;
-	padding: 15px 30px;
+  position: relative;
+  border: 1px solid #c6c6c6;
+  padding: 15px 30px;
 }
+
 .main-info-board-wrapper .nav-tabs {
-	border-bottom: 1px solid #c0c0c0;
+  border-bottom: 1px solid #c0c0c0;
 }
+
 .main-info-board-wrapper .nav-tabs > li {
-	position: relative;
-	margin-bottom: 0px;
-	padding: 0px 20px;
+  position: relative;
+  margin-bottom: 0px;
+  padding: 0px 20px;
 }
+
 .main-info-board-wrapper .nav-tabs > li::before {
-	content: "";
-    position: absolute;
-    top: 50%;
-    right: -5px;
-    width: 10px;
-    height: 10px;
-    margin-top: -5px;
-    border-radius: 50%;
-    background-color: #dbdbdb;
-    z-index: 1;
+  content: "";
+  position: absolute;
+  top: 50%;
+  right: -5px;
+  width: 10px;
+  height: 10px;
+  margin-top: -5px;
+  border-radius: 50%;
+  background-color: #dbdbdb;
+  z-index: 1;
 }
+
 .main-info-board-wrapper .nav-tabs > li:first-child {
-	padding-left: 0px;
+  padding-left: 0px;
 }
+
 .main-info-board-wrapper .nav-tabs > li:last-child {
-	padding-right: 0px;
+  padding-right: 0px;
 }
+
 .main-info-board-wrapper .nav-tabs > li:last-child::before {
-	display: none;
+  display: none;
 }
+
 .main-info-board-wrapper .nav-tabs > li > a {
-	position: relative;
-	height: 60px;
-	font-size: 24px;
-	font-weight: bold;
-	color: #a1a1a1;
-	padding: 10px 0px 20px 0px;
+  position: relative;
+  height: 60px;
+  font-size: 24px;
+  font-weight: bold;
+  color: #a1a1a1;
+  padding: 10px 0px 20px 0px;
 }
+
 .main-info-board-wrapper .nav-tabs > li > a,
 .main-info-board-wrapper .nav-tabs > li > a:focus,
-.main-info-board-wrapper .nav-tabs > li > a:hover  {
-	outline: none;
-	background: none;
-	border: none;
+.main-info-board-wrapper .nav-tabs > li > a:hover {
+  outline: none;
+  background: none;
+  border: none;
 }
+
 .main-info-board-wrapper .nav-tabs > li.active > a,
 .main-info-board-wrapper .nav-tabs > li.active > a:focus,
 .main-info-board-wrapper .nav-tabs > li.active > a:hover {
-	color: #000;
+  color: #000;
 }
+
 .main-info-board-wrapper .nav-tabs > li.active > a::after {
-	content: "";
-	position: absolute;
-	bottom: 0px;
-    left: 0px;
-	width: 100%;
-	height: 4px;
-	background-color: #00479d;
+  content: "";
+  position: absolute;
+  bottom: 0px;
+  left: 0px;
+  width: 100%;
+  height: 4px;
+  background-color: #00479d;
 }
+
 .main-info-board-wrapper .main-info-board-list {
-	margin-top: 20px;
+  margin-top: 20px;
 }
+
 .main-info-board-wrapper .main-info-board-list > li {
-	position: relative;
-	border-bottom: 1px solid #c0c0c0;
-	padding-bottom: 10px;
-	margin-bottom: 10px;
-	height: 66px;
+  position: relative;
+  border-bottom: 1px solid #c0c0c0;
+  padding-bottom: 10px;
+  margin-bottom: 10px;
+  height: 66px;
 }
+
 .main-info-board-wrapper .main-info-board-list > li:last-child {
-	border-bottom: none;
+  border-bottom: none;
 }
+
 .main-info-board-wrapper .main-info-board-more-btn {
-	position: absolute;
-    top: 29px;
-    right: 28px;
-	width: 69px;
-	height: 28px;
-	background: url(../img/common/btn/btn_main_more.png) no-repeat center center;
-	cursor: pointer;
-	opacity: 0.5;
+  position: absolute;
+  top: 29px;
+  right: 28px;
+  width: 69px;
+  height: 28px;
+  background: url(../img/common/btn/btn_main_more.png) no-repeat center center;
+  cursor: pointer;
+  opacity: 0.5;
 }
+
 .main-info-board-wrapper .main-info-board-more-btn:hover {
-	opacity: 1;
+  opacity: 1;
 }
+
 .main-info-board-wrapper .main-info-link-title {
-	position: absolute;
-	right: 0px;
-	width: 245px;
-	font-size: 16px;
-	line-height: 18px;
+  position: absolute;
+  right: 0px;
+  width: 245px;
+  font-size: 16px;
+  line-height: 18px;
 }
+
 .main-info-board-wrapper .main-info-link-date {
-	position: absolute;
-    left: 0px;
-    width: 60px;
-    text-align: center;
-    background-color: #00479d;
-    border-radius: 10px;
-	color: #fff;
-	letter-spacing: -1px;
-	padding: 11px 0px;
-	line-height: 16px;
+  position: absolute;
+  left: 0px;
+  width: 60px;
+  text-align: center;
+  background-color: #00479d;
+  border-radius: 10px;
+  color: #fff;
+  letter-spacing: -1px;
+  padding: 11px 0px;
+  line-height: 16px;
 }
 
 .main-info-user-count-group {
-	margin-top: 23px;
+  margin-top: 23px;
 }
+
 .main-info-user-count-group .user-count-box {
-	position: relative;
-	width: 100%;
-	font-size: 20px;
-	background-color: #d0e3f1;
-	border-radius: 10px;
-	clear: both;
-	float: right;
-	padding: 6px 20px 6px 0px;
-	margin-bottom: 3px;
+  position: relative;
+  width: 100%;
+  font-size: 20px;
+  background-color: #d0e3f1;
+  border-radius: 10px;
+  clear: both;
+  float: right;
+  padding: 6px 20px 6px 0px;
+  margin-bottom: 3px;
 }
+
 .main-info-user-count-group .user-count-box .count-title {
-	background-color: #3378c1;
-	border-radius: 10px;
-	color: #fff;
-	padding: 7px 20px;
+  background-color: #3378c1;
+  border-radius: 10px;
+  color: #fff;
+  padding: 7px 20px;
 }
+
 .main-info-user-count-group .user-count-box .user-count {
-	float: right;
-	color: #00345f;
-	font-weight: bold;
+  float: right;
+  color: #00345f;
+  font-weight: bold;
 }
 
 .shortcuts-btn-group {
-	width: 100%;
-	margin: 0px auto;
-	background-color: #f6f6f6;
+  width: 100%;
+  margin: 0px auto;
+  background-color: #f6f6f6;
 }
+
 .shortcuts-btn-group .shortcuts-btn-inner {
-	position: relative;
-	width: 1280px;
-	height: 300px;
-	margin: 0px auto;
+  position: relative;
+  width: 1280px;
+  height: 300px;
+  margin: 0px auto;
 }
+
 .shortcuts-btn-group .shortcuts-btn-inner .shortcuts-btn-align {
-	position: absolute;
-	top: 60px;
-	right: 0px;
-	z-index: 1;
+  position: absolute;
+  top: 60px;
+  right: 0px;
+  z-index: 1;
 }
+
 .shortcuts-btn-group .shortcuts-btn-inner .shortcuts-visual-align {
-	position: absolute;
-	bottom: 0px;
-	left: -50px;
-	width: 514px;
-	height: 301px;
-	background: url(../img/common/bg/bg_shortcuts_img_01.png) no-repeat center center;
-	z-index: 1;
+  position: absolute;
+  bottom: 0px;
+  left: -50px;
+  width: 514px;
+  height: 301px;
+  background: url(../img/common/bg/bg_shortcuts_img_01.png) no-repeat center center;
+  z-index: 1;
 }
+
 .shortcuts-btn-group .shortcuts-btn-text {
-	display: block;
-	line-height: 18px;
-	font-size: 16px;
-	text-align: center;
-	color: #000;
-	width: 140px;
-	margin-top: 122px;
-    margin-left: -14px;
+  display: block;
+  line-height: 18px;
+  font-size: 16px;
+  text-align: center;
+  color: #000;
+  width: 140px;
+  margin-top: 122px;
+  margin-left: -14px;
 }
+
 .shortcuts-btn-group .shortcuts-btn-box {
-	width: 112px;
-	height: 112px;
-	float: left;
-	border-radius: 20px;
-	margin-left: 30px;
-	cursor: pointer;
-	background-color: #fff;
-	background-repeat: no-repeat;
-	background-position: 50% 50%;
-	border: 1px solid #a9a9a9;
+  width: 112px;
+  height: 112px;
+  float: left;
+  border-radius: 20px;
+  margin-left: 30px;
+  cursor: pointer;
+  background-color: #fff;
+  background-repeat: no-repeat;
+  background-position: 50% 50%;
+  border: 1px solid #a9a9a9;
 }
+
 .shortcuts-btn-group .shortcuts-btn-box:hover {
-	background-color: #d0e3f1;
-	border: 2px solid #3378c1;
+  background-color: #d0e3f1;
+  border: 2px solid #3378c1;
 }
+
 .shortcuts-btn-box.shortcuts-btn-01 {
-	background-image: url(../img/common/icon/ico_parallax_btn_01_dark.png);
+  background-image: url(../img/common/icon/ico_parallax_btn_01_dark.png);
 }
+
 .shortcuts-btn-box.shortcuts-btn-02 {
-	background-image: url(../img/common/icon/ico_parallax_btn_02_dark.png);
+  background-image: url(../img/common/icon/ico_parallax_btn_02_dark.png);
 }
+
 .shortcuts-btn-box.shortcuts-btn-03 {
-	background-image: url(../img/common/icon/ico_parallax_btn_03_dark.png);
+  background-image: url(../img/common/icon/ico_parallax_btn_03_dark.png);
 }
+
 .shortcuts-btn-box.shortcuts-btn-04 {
-	background-image: url(../img/common/icon/ico_parallax_btn_04_dark.png);
+  background-image: url(../img/common/icon/ico_parallax_btn_04_dark.png);
 }
+
 .shortcuts-btn-box.shortcuts-btn-05 {
-	background-image: url(../img/common/icon/ico_parallax_btn_05_dark.png);
+  background-image: url(../img/common/icon/ico_parallax_btn_05_dark.png);
 }
+
 .shortcuts-btn-box.shortcuts-btn-06 {
-	background-image: url(../img/common/icon/ico_parallax_btn_06_dark.png);
+  background-image: url(../img/common/icon/ico_parallax_btn_06_dark.png);
 }
+
 /* 비쥬얼영역 - 2차 끝 */
-
-/* ===================================
-	메인 레이아웃 끝
-====================================== */
-
-
-/* ===================================
-	서브 레이아웃 시작
-====================================== */
-
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
 .sub .parallax {
-	background-image: url(../img/common/bg/sub_parallax.png);
-	height: 300px;
-	min-height: 300px;
-	background-size: auto;
-	background-position: 50% 0px !important;
-	background-repeat: no-repeat;
-	background-color: #afd2ea;
+  background-image: url(../img/common/bg/sub_parallax.png);
+  height: 300px;
+  min-height: 300px;
+  background-size: auto;
+  background-position: 50% 0px !important;
+  background-repeat: no-repeat;
+  background-color: #afd2ea;
 }
+
 .page-container {
-	position: relative;
-	overflow: inherit;
-	z-index: 1;
+  position: relative;
+  overflow: inherit;
+  z-index: 1;
 }
+
 .page-content {
-	padding-left: 260px;
-	padding-bottom: 80px;
-	width: 100%;
+  padding-left: 260px;
+  padding-bottom: 80px;
+  width: 100%;
 }
+
 /* 왼쪽메뉴 시작 */
 .page-sidebar-wrapper {
-	float: left;
-	width: 222px;
-	margin-top: -67px;
-	padding-bottom: 40px;
+  float: left;
+  width: 222px;
+  margin-top: -67px;
+  padding-bottom: 40px;
 }
+
 .page-sidebar-wrapper .heading {
-	height: 67px;
-	text-align: center;
-	background-color: #3378c1;
-	display: table-row;
+  height: 67px;
+  text-align: center;
+  background-color: #3378c1;
+  display: table-row;
 }
+
 .page-sidebar-wrapper .heading .heading-title {
-	display: table-cell;
-	vertical-align: middle;
-	width: 222px;
-	font-size: 24px;
-	color: #fff;
-	padding: 0px 10px;
+  display: table-cell;
+  vertical-align: middle;
+  width: 222px;
+  font-size: 24px;
+  color: #fff;
+  padding: 0px 10px;
 }
+
 .page-sidebar-menu {
-	border-collapse: collapse;
-	border-spacing: 0;
+  border-collapse: collapse;
+  border-spacing: 0;
 }
+
 .page-sidebar-menu .nav-item {
-	border: 1px solid #d3d3d3;
-	border-bottom: 0px;
-	font-size: 18px;
-	font-weight: bold;
-	background-color: #f3f4f8;
+  border: 1px solid #d3d3d3;
+  border-bottom: 0px;
+  font-size: 18px;
+  font-weight: bold;
+  background-color: #f3f4f8;
 }
+
 .page-sidebar-menu .nav-item:last-child {
-	border-bottom: 1px solid #d3d3d3;
+  border-bottom: 1px solid #d3d3d3;
 }
+
 .page-sidebar-menu .nav-item.active {
-	background:#dee6ee url(../img/common/bu/bu_nav_item.png) no-repeat 90% 50%;
+  background: #dee6ee url(../img/common/bu/bu_nav_item.png) no-repeat 90% 50%;
 }
+
 .page-sidebar-menu .nav-item a.nav-link {
-	display: block;
-	padding: 20px 34px;
+  display: block;
+  padding: 20px 34px;
 }
+
 /* 왼쪽메뉴 끝 */
 /* 왼쪽배너 시작 */
-.page-banner-wrapper {
-
-}
 .page-banner-wrapper .banner-item {
-	position: relative;
-	height: 164px;
-	border: 1px solid #d3d3d3;
-	border-top: 0px;
+  position: relative;
+  height: 164px;
+  border: 1px solid #d3d3d3;
+  border-top: 0px;
 }
-.page-banner-wrapper .banner-tel {
-	position: absolute;
-	top: 96px;
-	width: 100%;
-	font-size: 20px;
-	font-weight: bold;
-	color: #374970;
-	background: url(../img/common/bg/bg_banner_tel.png) no-repeat 22px 50%;
-	padding: 0px 0px 0px 68px;
-}
-.page-banner-wrapper .banner-title {
-	position: absolute;
-	top: 20px;
-	width: 100%;
-	font-size: 18px;
-	font-weight: bold;
-	background: url(../img/common/bg/bg_banner_title_01.png) no-repeat 90% 50%;
-	padding: 10px 24px;
-}
-.page-banner-wrapper .banner-item.banner-item-01 .point-color {
-	color:#0081ce;
-}
-.page-banner-wrapper .banner-item.banner-item-02 .point-color {
-	color:#207167;
-}
-.page-banner-wrapper .banner-item.banner-item-02 .banner-title {
-	background: url(../img/common/bg/bg_banner_title_02.png) no-repeat 90% 50%;
-}
-/* 왼쪽배너 끝 */
 
+.page-banner-wrapper .banner-tel {
+  position: absolute;
+  top: 96px;
+  width: 100%;
+  font-size: 20px;
+  font-weight: bold;
+  color: #374970;
+  background: url(../img/common/bg/bg_banner_tel.png) no-repeat 22px 50%;
+  padding: 0px 0px 0px 68px;
+}
+
+.page-banner-wrapper .banner-title {
+  position: absolute;
+  top: 20px;
+  width: 100%;
+  font-size: 18px;
+  font-weight: bold;
+  background: url(../img/common/bg/bg_banner_title_01.png) no-repeat 90% 50%;
+  padding: 10px 24px;
+}
+
+.page-banner-wrapper .banner-item.banner-item-01 .point-color {
+  color: #0081ce;
+}
+
+.page-banner-wrapper .banner-item.banner-item-02 .point-color {
+  color: #207167;
+}
+
+.page-banner-wrapper .banner-item.banner-item-02 .banner-title {
+  background: url(../img/common/bg/bg_banner_title_02.png) no-repeat 90% 50%;
+}
+
+/* 왼쪽배너 끝 */
 /* 페이지설명 시작 */
 .page-explanation {
-	background: #f9f9f9 url(../img/common/bg/bg_page_explanation.png) no-repeat 55px 50%;
-	display: table;
-	width: 100%;
-	min-height: 110px;
-	border: 1px solid #e9e9e9;
-	border-radius: 5px;
-	padding: 30px;
+  background: #f9f9f9 url(../img/common/bg/bg_page_explanation.png) no-repeat 55px 50%;
+  display: table;
+  width: 100%;
+  min-height: 110px;
+  border: 1px solid #e9e9e9;
+  border-radius: 5px;
+  padding: 30px;
 }
-.page-explanation .page-explanation-inner {
-	display: table-row;
-	height: 100%;
-}
-.page-explanation-text {
-	display: table-cell;
-	padding-left: 150px;
-	font-size: 16px;
-	vertical-align: middle;
-}
-.page-explanation.page-explanation-sm {
-	padding: 4px;
-	min-height: 40px;
-	background-size: 28px;
-	background-position: 15px 50%;
-}
-.page-explanation.page-explanation-sm .page-explanation-text {
-	padding-left: 50px;
-}
-.page-summary {
-	background: #f9f9f9;
-	border: 1px solid #e9e9e9;
-	border-radius: 5px;
-	padding: 30px;
-}
-.page-summary .contents-row {
-	padding-bottom: 46px;
-}
-.page-summary .contents-row:last-child {
-	padding-bottom: 0px;
-}
-.page-summary-text {
-	font-size: 16px;
-}
-.page-summary-icon {
-	width: 95px;
-	height: 95px;
-	float: left;
-}
-.page-summary-icon.summary-icon-01 {
-	background: url(../img/common/bg/bg_summary_icon_01.png) no-repeat 50% 50%;
-}
-.page-summary-icon.summary-icon-02 {
-	background: url(../img/common/bg/bg_summary_icon_02.png) no-repeat 50% 50%;
-}
-.page-summary-icon.summary-icon-03 {
-	background: url(../img/common/bg/bg_summary_icon_03.png) no-repeat 50% 50%;
-}
-.page-summary-icon + .page-summary-text {
-	width: 842px;
-	margin-left: 115px;
-}
-.summary-title-1depth {
-	font-size: 26px;
-	font-weight: bold;
-	color: #337ac1;
-	padding-bottom: 20px;
-}
-/* 페이지설명 끝 */
 
+.page-explanation .page-explanation-inner {
+  display: table-row;
+  height: 100%;
+}
+
+.page-explanation-text {
+  display: table-cell;
+  padding-left: 150px;
+  font-size: 16px;
+  vertical-align: middle;
+}
+
+.page-explanation.page-explanation-sm {
+  padding: 4px;
+  min-height: 40px;
+  background-size: 28px;
+  background-position: 15px 50%;
+}
+
+.page-explanation.page-explanation-sm .page-explanation-text {
+  padding-left: 50px;
+}
+
+.page-summary {
+  background: #f9f9f9;
+  border: 1px solid #e9e9e9;
+  border-radius: 5px;
+  padding: 30px;
+}
+
+.page-summary .contents-row {
+  padding-bottom: 46px;
+}
+
+.page-summary .contents-row:last-child {
+  padding-bottom: 0px;
+}
+
+.page-summary-text {
+  font-size: 16px;
+}
+
+.page-summary-icon {
+  width: 95px;
+  height: 95px;
+  float: left;
+}
+
+.page-summary-icon.summary-icon-01 {
+  background: url(../img/common/bg/bg_summary_icon_01.png) no-repeat 50% 50%;
+}
+
+.page-summary-icon.summary-icon-02 {
+  background: url(../img/common/bg/bg_summary_icon_02.png) no-repeat 50% 50%;
+}
+
+.page-summary-icon.summary-icon-03 {
+  background: url(../img/common/bg/bg_summary_icon_03.png) no-repeat 50% 50%;
+}
+
+.page-summary-icon + .page-summary-text {
+  width: 842px;
+  margin-left: 115px;
+}
+
+.summary-title-1depth {
+  font-size: 26px;
+  font-weight: bold;
+  color: #337ac1;
+  padding-bottom: 20px;
+}
+
+/* 페이지설명 끝 */
 /* 넘버형태 내용 스타일 시작 */
 .numberic-contents {
-	padding-top: 60px;
+  padding-top: 60px;
 }
-.numberic-contents .contents-row {
-	padding-bottom: 60px;
-}
-.numberic-contents .contents-row:last-child {
-	padding-bottom: 0px;
-}
-.numberic-contents-text {
-	font-size: 16px;
-}
-.numberic-contents-num {
-	width: 100px;
-	height: 100px;
-	line-height: 82px;
-	font-size: 100px;
-	color: #08b3e3;
-	float: left;
-}
-.numberic-contents-num + .numberic-contents-text {
-	width: 822px;
-	margin-left: 135px;
-}
-.numberic-contents-title {
-	font-size: 24px;
-	font-weight: bold;
-	color: #020202;
-	padding-bottom: 20px;
-}
-/* 넘버형태 내용 스타일 끝 */
 
+.numberic-contents .contents-row {
+  padding-bottom: 60px;
+}
+
+.numberic-contents .contents-row:last-child {
+  padding-bottom: 0px;
+}
+
+.numberic-contents-text {
+  font-size: 16px;
+}
+
+.numberic-contents-num {
+  width: 100px;
+  height: 100px;
+  line-height: 82px;
+  font-size: 100px;
+  color: #08b3e3;
+  float: left;
+}
+
+.numberic-contents-num + .numberic-contents-text {
+  width: 822px;
+  margin-left: 135px;
+}
+
+.numberic-contents-title {
+  font-size: 24px;
+  font-weight: bold;
+  color: #020202;
+  padding-bottom: 20px;
+}
+
+/* 넘버형태 내용 스타일 끝 */
 /* 내용 속 부속품 시작 */
 .list-2depth-title {
-	float: left;
-	display: table-cell;
+  float: left;
+  display: table-cell;
 }
+
 .list-2depth-title-text {
-	background-color: #dee3e7;
-	padding: 0px 15px;
-	margin-right: 10px;
-	border-radius: 50px;
-	display: block;
+  background-color: #dee3e7;
+  padding: 0px 15px;
+  margin-right: 10px;
+  border-radius: 50px;
+  display: block;
 }
+
 .list-2depth-title + .list-2depth-ul {
-	display: table-cell;
+  display: table-cell;
 }
+
 .object-label {
-	background-color: #dee3e7;
-	padding: 0px 15px;
-	margin-right: 10px;
-	border-radius: 50px;
-	display: block;
-	margin-top: 10px;
-	width: 200px;
-	margin: auto;
+  background-color: #dee3e7;
+  padding: 0px 15px;
+  margin-right: 10px;
+  border-radius: 50px;
+  display: block;
+  margin-top: 10px;
+  width: 200px;
+  margin: auto;
 }
+
 .list-2depth-title-text.bg-sky-blue,
 .object-label.bg-sky-blue {
-	background-color: #08b3e3;
-	color: #fff;
+  background-color: #08b3e3;
+  color: #fff;
 }
-/* 내용 속 부속품 끝 */
 
+/* 내용 속 부속품 끝 */
 /* 개요 시작 */
 .summary-group {
-	padding-top: 64px;
+  padding-top: 64px;
 }
+
 .summary-group .summary-item {
-	position: relative;
-	display: table-cell;
-	padding: 0px 25px 0px 25px;
-	width: 33.3333%
+  position: relative;
+  display: table-cell;
+  padding: 0px 25px 0px 25px;
+  width: 33.3333%;
 }
+
 .summary-group .summary-item::after {
-	content: "";
-	position: absolute;
-	top: 50%;
-	right: -12px;
-	margin-top: -12px;
-	width: 24px;
-	height: 24px;
-	background: url(../img/common/bu/bu_plus_large.png) no-repeat 50% 50%;
+  content: "";
+  position: absolute;
+  top: 50%;
+  right: -12px;
+  margin-top: -12px;
+  width: 24px;
+  height: 24px;
+  background: url(../img/common/bu/bu_plus_large.png) no-repeat 50% 50%;
 }
+
 .summary-group .summary-item:last-child::after {
-	display: none;
+  display: none;
 }
+
 .summary-group .summary-item .summary-item-title {
-	position: absolute;
-	top: -64px;
-	left: 50%;
-	width: 125px;
-	height: 125px;
-	margin-left: -64px;
-	font-size: 0px;
-	z-index: 1;
+  position: absolute;
+  top: -64px;
+  left: 50%;
+  width: 125px;
+  height: 125px;
+  margin-left: -64px;
+  font-size: 0px;
+  z-index: 1;
 }
+
 .summary-group .summary-item .summary-item-title.item-title-01 {
-	background: url(../img/common/bg/bg_summary_img_01.png) no-repeat 50% 50%;
+  background: url(../img/common/bg/bg_summary_img_01.png) no-repeat 50% 50%;
 }
+
 .summary-group .summary-item .summary-item-title.item-title-02 {
-	background: url(../img/common/bg/bg_summary_img_02.png) no-repeat 50% 50%;
+  background: url(../img/common/bg/bg_summary_img_02.png) no-repeat 50% 50%;
 }
+
 .summary-group .summary-item .summary-item-title.item-title-03 {
-	background: url(../img/common/bg/bg_summary_img_03.png) no-repeat 50% 50%;
+  background: url(../img/common/bg/bg_summary_img_03.png) no-repeat 50% 50%;
 }
+
 .summary-group .summary-item ul.content-ul-list {
-	padding: 80px 26px 26px 26px;
-	background-color: #fbfbfb;
-	border-radius: 5px;
+  padding: 80px 26px 26px 26px;
+  background-color: #fbfbfb;
+  border-radius: 5px;
 }
+
 .summary-group .summary-item ul.content-ul-list li {
-	padding-bottom: 25px;
+  padding-bottom: 25px;
 }
+
 /* 개요 끝 */
 /* 오시는길 시작 */
 .road-map-list > li {
-	display: table;
-	padding: 20px 0px;
-	border-bottom: 1px solid #d3d3d3;
+  display: table;
+  padding: 20px 0px;
+  border-bottom: 1px solid #d3d3d3;
 }
+
 .road-map-list > li:last-child {
-	border-bottom: 0px;
+  border-bottom: 0px;
 }
+
 .road-map-list .road-map-title {
-	width: 160px;
-	float: left;
-	display: block;
-	color: #08b3e3;
-	font-size: 18px;
-	font-weight: bold;
-	padding-left: 45px;
-	line-height: 32px;
+  width: 160px;
+  float: left;
+  display: block;
+  color: #08b3e3;
+  font-size: 18px;
+  font-weight: bold;
+  padding-left: 45px;
+  line-height: 32px;
 }
+
 .road-map-list .road-map-title.map-title-car {
-	background: url(../img/common/icon/ico_map_title_car.png) no-repeat 0px 50%;
+  background: url(../img/common/icon/ico_map_title_car.png) no-repeat 0px 50%;
 }
+
 .road-map-list .road-map-title.map-title-subway {
-	background: url(../img/common/icon/ico_map_title_subway.png) no-repeat 0px 50%;
+  background: url(../img/common/icon/ico_map_title_subway.png) no-repeat 0px 50%;
 }
+
 .road-map-list .road-map-title.map-title-bus {
-	background: url(../img/common/icon/ico_map_title_bus.png) no-repeat 0px 50%;
+  background: url(../img/common/icon/ico_map_title_bus.png) no-repeat 0px 50%;
 }
+
 .road-map-list > li > .content-ul-list {
-	float: left;
+  float: left;
 }
+
 /* 오시는길 끝 */
 /* 활용지침 시작 */
 .usage-guidelines-box {
-	position: relative;
-	border: 3px solid #08b3e3;
-	padding: 40px;
+  position: relative;
+  border: 3px solid #08b3e3;
+  padding: 40px;
 }
+
 .usage-guidelines-box [class^=pattern-] {
-	position: absolute;
-	display: block;
-	width: 30px;
-	height: 30px;
+  position: absolute;
+  display: block;
+  width: 30px;
+  height: 30px;
 }
+
 .usage-guidelines-box .pattern-top-L {
-	top: 12px;
-	left: 12px;
-	background: url(../img/common/bg/bg_pattern_top_L.png) no-repeat 50% 50%;
+  top: 12px;
+  left: 12px;
+  background: url(../img/common/bg/bg_pattern_top_L.png) no-repeat 50% 50%;
 }
+
 .usage-guidelines-box .pattern-top-R {
-	top: 12px;
-	right: 12px;
-	background: url(../img/common/bg/bg_pattern_top_R.png) no-repeat 50% 50%;
+  top: 12px;
+  right: 12px;
+  background: url(../img/common/bg/bg_pattern_top_R.png) no-repeat 50% 50%;
 }
+
 .usage-guidelines-box .pattern-bottom-L {
-	bottom: 12px;
-	left: 12px;
-	background: url(../img/common/bg/bg_pattern_bottom_L.png) no-repeat 50% 50%;
+  bottom: 12px;
+  left: 12px;
+  background: url(../img/common/bg/bg_pattern_bottom_L.png) no-repeat 50% 50%;
 }
+
 .usage-guidelines-box .pattern-bottom-R {
-	bottom: 12px;
-	right: 12px;
-	background: url(../img/common/bg/bg_pattern_bottom_R.png) no-repeat 50% 50%;
+  bottom: 12px;
+  right: 12px;
+  background: url(../img/common/bg/bg_pattern_bottom_R.png) no-repeat 50% 50%;
 }
+
 .provision-box {
-	background-color: #e8e8e8;
-	border-radius: 40px;
-	text-align: center;
-	padding: 6px 0px;
-	font-weight: bold;
+  background-color: #e8e8e8;
+  border-radius: 40px;
+  text-align: center;
+  padding: 6px 0px;
+  font-weight: bold;
 }
+
 .law-download {
-	position: relative;
-	display: table;
-	width: 100%;
-	padding: 18px 28px;
-	line-height: 20px;
-	cursor: pointer;
+  position: relative;
+  display: table;
+  width: 100%;
+  padding: 18px 28px;
+  line-height: 20px;
+  cursor: pointer;
 }
+
 .law-download::after {
-	content: "";
-	position: absolute;
-	right: 28px;
-	top: 50%;
-	width: 30px;
-	height: 30px;
-	margin-top: -15px;
-	/* background: url(../img/common/icon/ico_btn_download.png) no-repeat 50% 50%; */
+  content: "";
+  position: absolute;
+  right: 28px;
+  top: 50%;
+  width: 30px;
+  height: 30px;
+  margin-top: -15px;
+  /* background: url(../img/common/icon/ico_btn_download.png) no-repeat 50% 50%; */
 }
+
 .law-download-inner {
-	display: table;
-	height: 100%;
+  display: table;
+  height: 100%;
 }
+
 .law-download-text {
-	display: table-cell;
-	vertical-align: middle;
+  display: table-cell;
+  vertical-align: middle;
 }
+
 /* 활용지침 끝 */
 /* FAQ 시작 */
 .faq-f {
-	position: relative;
-	color: #08b3e3;
-	font-weight: bold;
-	font-size: 18px;
-	margin-top: 50px;
-	padding: 10px 40px 20px 80px;
-	background: url(../img/common/bg/bg_faq_f.png) no-repeat 0 0;
+  position: relative;
+  color: #08b3e3;
+  font-weight: bold;
+  font-size: 18px;
+  margin-top: 50px;
+  padding: 10px 40px 20px 80px;
+  background: url(../img/common/bg/bg_faq_f.png) no-repeat 0 0;
 }
+
 .faq-f:first-child {
-	margin-top: 0px;
+  margin-top: 0px;
 }
+
 .faq-f span {
-	position: relative;
-	display: inline-block;
-	background-color: #fff;
-	padding-right: 10px;
-	z-index: 12;
+  position: relative;
+  display: inline-block;
+  background-color: #fff;
+  padding-right: 10px;
+  z-index: 12;
 }
+
 .faq-f::after {
-	content: "";
-	position: absolute;
-	top: 21px;
-	right: 0px;
-	display: block;
-	background-color: #b5bfc8;
-	width: 940px;
-	height: 2px;
+  content: "";
+  position: absolute;
+  top: 21px;
+  right: 0px;
+  display: block;
+  background-color: #b5bfc8;
+  width: 940px;
+  height: 2px;
 }
+
 .faq-f + .contents-panel,
 .contents-panel.faq-q-panel {
-	padding: 25px;
+  padding: 25px;
 }
+
 ul.faq-q > li {
-	padding-left: 80px;
-	padding-bottom: 2px;
-	min-height: 42px;
-	background: url(../img/common/bg/bg_faq_q.png) no-repeat 0 0;
+  padding-left: 80px;
+  padding-bottom: 2px;
+  min-height: 42px;
+  background: url(../img/common/bg/bg_faq_q.png) no-repeat 0 0;
 }
+
 ul.faq-q > li textarea {
-	margin: 0px;
+  margin: 0px;
 }
+
 /* FAQ 끝 */
 /* 약관 시작 */
 .terms-panel {
-	height:200px;
-	background:#eeeeee;
-	overflow-y: scroll;
-	padding:10px 25px 10px 25px;
+  height: 200px;
+  background: #eeeeee;
+  overflow-y: scroll;
+  padding: 10px 25px 10px 25px;
 }
+
 .terms-question {
-	display: block;
-	margin-top: 20px;
-	margin-bottom: 5px;
+  display: block;
+  margin-top: 20px;
+  margin-bottom: 5px;
 }
+
 /* 약관 끝 */
 /* 로그인 step 시작 */
 .login-page .step-bar {
-	background-color: #4f5961;
-	width: 100%;
-	height: 50px;
-	border-radius: 5px;
-	overflow: hidden;
-	margin-bottom: 30px;
+  background-color: #4f5961;
+  width: 100%;
+  height: 50px;
+  border-radius: 5px;
+  overflow: hidden;
+  margin-bottom: 30px;
 }
+
 .login-page .step-ul {
-	display: flex;
-	display: -webkit-box;
-	display: -ms-flexbox;
+  display: flex;
+  display: -webkit-box;
+  display: -ms-flexbox;
 }
+
 .login-page .step-li {
-	position: relative;
-	color: #fff;
-	text-align: center;
-	line-height: 50px;
-	width: 0;
-	flex-grow: 1;
-	-webkit-box-flex: 1;
-	-ms-flex: 1;
+  position: relative;
+  color: #fff;
+  text-align: center;
+  line-height: 50px;
+  width: 0;
+  flex-grow: 1;
+  -webkit-box-flex: 1;
+  -ms-flex: 1;
 }
+
 .login-page .step-li::after {
-	content: "";
-	position: absolute;
-	right: -20px;
-	width: 20px;
-	height: 50px;
-	background: url(../img/common/bu/bu_step.png) no-repeat right 50%;
-	z-index: 1;
+  content: "";
+  position: absolute;
+  right: -20px;
+  width: 20px;
+  height: 50px;
+  background: url(../img/common/bu/bu_step.png) no-repeat right 50%;
+  z-index: 1;
 }
+
 .login-page .step-li:last-child::after {
-	background: none;
+  background: none;
 }
+
 .login-page .step-li.active {
-	background-color: #1382de;
+  background-color: #1382de;
 }
+
 .login-page .step-li.active::after {
-	background: url(../img/common/bu/bu_step_active.png) no-repeat right 50%;
+  background: url(../img/common/bu/bu_step_active.png) no-repeat right 50%;
 }
+
 /* 로그인 step 끝 */
 /* 지반정보 지역별 현황 시작 */
-.map-contents {
-
-}
 .map-value {
-	position: absolute;
-	width: 116px;
-	height: 20px;
-	line-height: 20px;
-	text-align: center;
-	z-index: 1;
+  position: absolute;
+  width: 116px;
+  height: 20px;
+  line-height: 20px;
+  text-align: center;
+  z-index: 1;
 }
+
 /* 지반정보 지역별 현황 끝 */
-
 .map-legend {
-	text-align: right;
-	margin-bottom: 10px;
-}
-.map-legend-box {
-	border: 1px solid #d5d5d5;
-	display: inline-block;
-	padding: 4px 10px;
-}
-.map-legend-group {
-	display: block;
-	margin-right: 14px;
-	float: left;
-}
-.map-legend-group:last-child {
-	margin-right: 0px;
-}
-.map-legend-icon {
-	width: 20px;
-	height: 20px;
-	background-color: #000;
-	display: block;
-	float: left;
-	margin-right: 6px;
-}
-.map-legend-icon.icon-red {
-	background-color: red;
-}
-.map-legend-text {
-	display: block;
-	float: left;
-	line-height: 20px;
+  text-align: right;
+  margin-bottom: 10px;
 }
 
+.map-legend-box {
+  border: 1px solid #d5d5d5;
+  display: inline-block;
+  padding: 4px 10px;
+}
+
+.map-legend-group {
+  display: block;
+  margin-right: 14px;
+  float: left;
+}
+
+.map-legend-group:last-child {
+  margin-right: 0px;
+}
+
+.map-legend-icon {
+  width: 20px;
+  height: 20px;
+  background-color: #000;
+  display: block;
+  float: left;
+  margin-right: 6px;
+}
+
+.map-legend-icon.icon-red {
+  background-color: red;
+}
+
+.map-legend-text {
+  display: block;
+  float: left;
+  line-height: 20px;
+}
 
 /* 기존 팝업 시작 */
-
 /* 기존 팝업 끝 */
-
-/* ===================================
-	서브 레이아웃 끝
-====================================== */
-
-/* ===================================
-	익스플로어 레이아웃 시작
-====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
 .ie .pace {
-	display: none !important;
+  display: none !important;
 }
+
 .ie .wow {
-	animation-name: none !important;
+  animation-name: none !important;
 }
+
 .ie .animated {
-	animation-duration: 0s !important;
-	animation-fill-mode: none !important;
+  animation-duration: 0s !important;
+  animation-fill-mode: none !important;
 }
+
 .ie .parallax {
-	transition-timing-function: inherit !important;
-	-ms-transition-timing-function: inherit !important;
-	-moz-transition-timing-function: inherit !important;
-	-webkit-transition-timing-function: inherit !important;
-	-o-transition-timing-function: inherit !important;
-	transition-duration: .1s !important;
-	-ms-transition-duration: .1s !important;
-	-moz-transition-duration: .1s !important;
-	-webkit-transition-duration: .1s !important;
-	-o-transition-duration: .1s !important;
+  transition-timing-function: inherit !important;
+  -ms-transition-timing-function: inherit !important;
+  -moz-transition-timing-function: inherit !important;
+  -webkit-transition-timing-function: inherit !important;
+  -o-transition-timing-function: inherit !important;
+  transition-duration: 0.1s !important;
+  -ms-transition-duration: 0.1s !important;
+  -moz-transition-duration: 0.1s !important;
+  -webkit-transition-duration: 0.1s !important;
+  -o-transition-duration: 0.1s !important;
 }
-/* ===================================
-	익스플로어 레이아웃 끝
-====================================== */
 
-
-
-/* ===================================
-	팝업 시작
-====================================== */
-
-.k-window {
-
-}
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
 .k-window-content .k-button::before {
-    opacity: 1;
+  opacity: 1;
 }
+
 .k-window-actions .k-button::before {
-    opacity: 0;
+  opacity: 0;
 }
+
 .k-window-content {
-    padding: 0px;
-    overflow: hidden;
+  padding: 0px;
+  overflow: hidden;
 }
+
 .k-window.k-state-focused {
-    border: 2px solid #0095da;
+  border: 2px solid #0095da;
 }
+
 .k-window.k-state-focused .k-window-titlebar {
-    color: #fff;
-    background-color: #0095da;
-    cursor: move;
+  color: #fff;
+  background-color: #0095da;
+  cursor: move;
 }
+
 .k-window-title {
-    cursor: move;
+  cursor: move;
 }
+
 .k-window-titlebar {
-    border-radius: 0;
+  border-radius: 0;
 }
+
 .k-edit-form-container {
-    width: auto;
+  width: auto;
 }
+
 .k-popup-edit-form {
-    /* width: 100%; */
-    height: 100%;
-    /* padding: 12px; */
-    overflow: auto;
+  /* width: 100%; */
+  height: 100%;
+  /* padding: 12px; */
+  overflow: auto;
 }
+
 .kc-popup-btn-group .k-popup-edit-form {
-    margin-bottom: 56px;
+  margin-bottom: 56px;
 }
+
 .k-popup-edit-form.button-group-display {
-    height: calc(100% - 56px);
+  height: calc(100% - 56px);
 }
+
 .k-edit-buttons {
-    position: absolute;
-    bottom: 0px;
-    left: 0px;
-    right: 0px;
-    width: 100%;
-    padding: 10px;
+  position: absolute;
+  bottom: 0px;
+  left: 0px;
+  right: 0px;
+  width: 100%;
+  padding: 10px;
 }
+
 .k-edit-buttons .button-group {
-    float: right;
+  float: right;
 }
+
 .k-window-titlebar .k-window-actions {
-	top: 7px !important;
+  top: 7px !important;
 }
+
 .k-window-titleless {
-	padding-top: 0px !important;
+  padding-top: 0px !important;
 }
+
 .popup-content-wrapper {
-	padding: 20px;
+  padding: 20px;
 }
-/* ===================================
-	팝업 끝
-====================================== */
 
-
-/* ===================================
-	Icon
-====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
+/* ====================================== */
 .icon {
-	position: relative;
-    display: inline-block;
-    line-height: inherit;
-    border-radius: 5px;
-    padding: 0px;
-    width: 22px;
-    height: 22px;
-	font-weight: normal;
-	font-size: 0px;
-	vertical-align: middle;
+  position: relative;
+  display: inline-block;
+  line-height: inherit;
+  border-radius: 5px;
+  padding: 0px;
+  width: 22px;
+  height: 22px;
+  font-weight: normal;
+  font-size: 0px;
+  vertical-align: middle;
 }
+
 .icon::after {
-	content: "";
-    position: absolute;
-	top: 0px;
-	left: 0px;
-    height: 22px;
-    width: 22px;
+  content: "";
+  position: absolute;
+  top: 0px;
+  left: 0px;
+  height: 22px;
+  width: 22px;
+}
+
+.icon.icon-new {
+  width: 36px;
+  height: 16px;
+}
+
+.icon.icon-new::after {
+  width: 28px;
+  top: -2px;
+  left: 4px;
+  background: url(../img/common/icon/icon_ico_new.png) no-repeat 50% 50%;
+}
+
+.icon.icon-download::after {
+  background: url(../img/common/icon/ico_btn_disk_dark.png) no-repeat 50% 50%;
+}
+
+.icon.icon-upload::after {
+  background: url(../img/common/icon/ico_btn_upload_dark.png) no-repeat 50% 50%;
+}
+
+.icon.icon-insertion::after {
+  background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 50% 50%;
+}
+
+.icon.icon-delete::after {
+  background: url(../img/common/icon/ico_btn_delete_s.png) no-repeat 50% 50%;
+}
+
+.icon.icon-link::after {
+  background: url(../img/common/icon/ico_btn_link.png) no-repeat 50% 50%;
+}
+
+.icon.icon-attach::after {
+  background: url(../img/common/icon/ico_btn_attach.png) no-repeat 50% 50%;
+}
+
+.icon.icon-reply::after {
+  background: url(../img/common/icon/ico_btn_reply_s.png) no-repeat 50% 50%;
+}
+
+.icon.icon-more::after {
+  background: url(../img/common/icon/icon_nav_link_arrow_right.png) no-repeat 50% 50%;
 }
-.icon.icon-new {width: 36px; height: 16px;}
-.icon.icon-new::after {width: 28px; top: -2px; left:4px; background: url(../img/common/icon/icon_ico_new.png) no-repeat 50% 50%;}
-.icon.icon-download::after {background: url(../img/common/icon/ico_btn_disk_dark.png) no-repeat 50% 50%;}
-.icon.icon-upload::after {background: url(../img/common/icon/ico_btn_upload_dark.png) no-repeat 50% 50%;}
-.icon.icon-insertion::after {background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 50% 50%;}
-.icon.icon-delete::after {background: url(../img/common/icon/ico_btn_delete_s.png) no-repeat 50% 50%;}
-.icon.icon-link::after {background: url(../img/common/icon/ico_btn_link.png) no-repeat 50% 50%;}
-.icon.icon-attach::after {background: url(../img/common/icon/ico_btn_attach.png) no-repeat 50% 50%;}
-.icon.icon-reply::after {background: url(../img/common/icon/ico_btn_reply_s.png) no-repeat 50% 50%;}
-.icon.icon-more::after {background: url(../img/common/icon/icon_nav_link_arrow_right.png) no-repeat 50% 50%;}
 
 .link-window {
-	padding: 2px 24px 2px 4px;
-    margin-right: 4px;
-    border-radius: 5px;
-    background: #efefef url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
+  padding: 2px 24px 2px 4px;
+  margin-right: 4px;
+  border-radius: 5px;
+  background: #efefef url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
 }
+
 .link-site {
-	padding: 2px 24px 2px 4px;
-    margin-right: 4px;
-    border-radius: 5px;
-    background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
+  padding: 2px 24px 2px 4px;
+  margin-right: 4px;
+  border-radius: 5px;
+  background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
 }
+
 .link-go {
-	padding: 2px 24px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
+  padding: 2px 24px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
 }
+
 .link-download {
-	padding: 2px 24px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/ico_btn_disk_dark.png) no-repeat 100% 50%;
+  padding: 2px 24px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/ico_btn_disk_dark.png) no-repeat 100% 50%;
 }
+
 .link-upload {
-	padding: 2px 24px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/ico_btn_upload_dark.png) no-repeat 100% 50%;
+  padding: 2px 24px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/ico_btn_upload_dark.png) no-repeat 100% 50%;
 }
+
 .link-delete {
-	padding: 2px 24px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/ico_btn_delete_s.png) no-repeat 100% 50%;
+  padding: 2px 24px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/ico_btn_delete_s.png) no-repeat 100% 50%;
 }
+
 .link-icon {
-	padding: 2px 30px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/ico_btn_link.png) no-repeat 100% 50%;
+  padding: 2px 30px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/ico_btn_link.png) no-repeat 100% 50%;
 }
+
 .link-attach {
-	padding: 2px 30px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/ico_btn_attach.png) no-repeat 100% 50%;
+  padding: 2px 30px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/ico_btn_attach.png) no-repeat 100% 50%;
 }
+
 .link-more {
-	padding: 2px 20px 2px 0px;
-    margin-right: 4px;
-    background: url(../img/common/icon/icon_nav_link_arrow_right.png) no-repeat 100% 50%;
+  padding: 2px 20px 2px 0px;
+  margin-right: 4px;
+  background: url(../img/common/icon/icon_nav_link_arrow_right.png) no-repeat 100% 50%;
 }
+
 .link-reply {
-	padding: 2px 0px 2px 30px;
-    margin-left: 4px;
-    background: url(../img/common/icon/ico_btn_reply_s.png) no-repeat 0 50%;
+  padding: 2px 0px 2px 30px;
+  margin-left: 4px;
+  background: url(../img/common/icon/ico_btn_reply_s.png) no-repeat 0 50%;
 }
 
 .rating-star {
-	margin-bottom: 20px;
+  margin-bottom: 20px;
 }
+
 .rating-star span {
-	position: relative;
-    display: inline-block;
-    line-height: inherit;
-    border-radius: 5px;
-    padding: 0px;
-	margin-right: 10px;
-    width: 40px;
-    height: 40px;
-	font-weight: normal;
-	font-size: 0px;
-	vertical-align: middle;
+  position: relative;
+  display: inline-block;
+  line-height: inherit;
+  border-radius: 5px;
+  padding: 0px;
+  margin-right: 10px;
+  width: 40px;
+  height: 40px;
+  font-weight: normal;
+  font-size: 0px;
+  vertical-align: middle;
 }
+
 .rating-star span::after {
-	content: "";
-    position: absolute;
-	top: 0px;
-	left: 0px;
-    height: 40px;
-    width: 40px;
-	background: url(../img/common/icon/rating_star.png) no-repeat 0 50%;
+  content: "";
+  position: absolute;
+  top: 0px;
+  left: 0px;
+  height: 40px;
+  width: 40px;
+  background: url(../img/common/icon/rating_star.png) no-repeat 0 50%;
 }
+
 .rating-star span.star-off::after {
-	background: url(../img/common/icon/rating_star_off.png) no-repeat 0 50%;
-}
\ No newline at end of file
+  background: url(../img/common/icon/rating_star_off.png) no-repeat 0 50%;
+}
+
+/* ====================================== */
+/* ====================================== */
+.login-popup-wrapper .mfp-content.login-popup-content {
+  display: table-cell;
+  vertical-align: middle;
+}
+.login-popup-wrapper .mfp-content .login-popup {
+  width: 610px;
+  height: 347px;
+  margin: 0px auto;
+  padding: 40px;
+  background-color: #fff;
+  border: 2px solid #000000;
+  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+}
+.login-popup-wrapper .mfp-content .login-popup .contents-title {
+  font-size: 36px;
+  margin-bottom: 10px;
+  color: #161616;
+  text-align: center;
+  font-weight: bold;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > p {
+  text-align: center;
+  width: 100%;
+  display: block;
+  font-size: 18px;
+  margin-bottom: 30px;
+  color: #161616;
+  font-weight: normal;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul {
+  width: 100%;
+  display: inline-block;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li {
+  width: 150px;
+  height: 150px;
+  display: inline-block;
+  border: 0px solid #222222;
+  font-size: 40px;
+  cursor: pointer;
+  background: #FFFFFF;
+  box-shadow: 0px 8px 24px rgba(0, 0, 0, 0.15);
+  border-radius: 20px;
+  padding: 30px;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li:hover {
+  background: #3378C1;
+  color: #ffffff;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li:hover > div > div.icons.individual-user {
+  background-image: url("/com/img/main/signin/individual_user_white.svg?v=20240607_1153");
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li:hover > div > div.icons.corporate-user {
+  background-image: url("/com/img/main/signin/corporate_user_white.svg?v=20240607_1153");
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li:hover > div > div.icons.ordering-organization {
+  background-image: url("/com/img/main/signin/ordering_organization_white.svg?v=20240607_1153");
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li.center {
+  margin: 0px 30px;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li > div {
+  text-align: center;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li > div > div.icons {
+  display: inline-block;
+  width: 75px;
+  height: 75px;
+  -moz-background-size: cover;
+  -webkit-background-size: cover;
+  -o-background-size: cover;
+  background-size: cover;
+  background-repeat: no-repeat;
+  background-position: center;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li > div > div.icons.individual-user {
+  background-image: url("/com/img/main/signin/individual_user.svg?v=20240607_1153");
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li > div > div.icons.corporate-user {
+  background-image: url("/com/img/main/signin/corporate_user.svg?v=20240607_1153");
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li > div > div.icons.ordering-organization {
+  background-image: url("/com/img/main/signin/ordering_organization.svg?v=20240607_1153");
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .account-type-wrapper > ul > li > div > div > span {
+  font-size: 16px;
+  font-weight: normal;
+}
+.login-popup-wrapper .mfp-content .login-popup .t-center .login-radio {
+  line-height: 50px;
+  border-top: 1px solid #000000;
+  border-bottom: 1px solid #000000;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > p {
+  text-align: center;
+  width: 100%;
+  display: block;
+  font-size: 18px;
+  margin-bottom: 30px;
+  color: #161616;
+  font-weight: normal;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > .login-form-row {
+  display: inline-block;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > .login-form-row > .id-password-wrapper {
+  display: inline-block;
+  width: 330px;
+  height: 106px;
+  padding: 0px;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > .login-form-row > .id-password-wrapper > input {
+  height: 48px;
+  margin: 0px;
+  margin-bottom: 10px;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > .login-form-row > .signin-button-wrapper {
+  display: inline-block;
+  width: 139px;
+  height: 106px;
+  padding: 0px;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > .login-form-row > .signin-button-wrapper > button {
+  display: inline-block;
+  width: 100%;
+  height: 106px;
+}
+.login-popup-wrapper .mfp-content .login-popup .signin-wrapper > .login-form-row > .signin-button-wrapper > button.mfp-popup-close {
+  display: none;
+}
+
+/* ====================================== */
+/* ====================================== */
+
+/*# sourceMappingURL=common.v2.0.css.map */
diff --git a/src/main/webapp/com/css/common.v2.0.css.map b/src/main/webapp/com/css/common.v2.0.css.map
new file mode 100644
index 00000000..63b1de67
--- /dev/null
+++ b/src/main/webapp/com/css/common.v2.0.css.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/build.bat b/src/main/webapp/com/css/sass/build.bat
new file mode 100644
index 00000000..5ce8408f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/build.bat
@@ -0,0 +1 @@
+npx sass --watch common.v2.0.scss ../common.v2.0.css
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/common.v2.0.scss b/src/main/webapp/com/css/sass/common.v2.0.scss
new file mode 100644
index 00000000..153886a7
--- /dev/null
+++ b/src/main/webapp/com/css/sass/common.v2.0.scss
@@ -0,0 +1,2845 @@
+/* ---------------------------------- */
+
+// Name: common.css
+// Categorie : 레이아웃, 플러그인, 컴포넌트, 버튼 등의 재정의 (공통)
+// Author : 이상혁
+// Version : v.2.0
+// Created : 2020-03-02
+// Last update : 2020-03-02
+
+// -------------------------------------
+
+// Table of contents
+
+// 	01. 적응형 재정의
+// 	02. 반응형 재정의
+// 	03. 스타일 재정의
+// 	04. 메뉴 재정의
+// 	05. 공통
+// 	06. 풋터
+// 	07. 메인 레이아웃
+// 	08. 서브 레이아웃
+// 	09. 익스플로어 레이아웃
+/* ---------------------------------- */
+
+
+/* ====================================== */
+// 	적응형 재정의 시작
+/* ====================================== */
+
+body,
+.navbar,
+.parallax,
+.page-footer,
+.menu-all-popup-wrapper .mfp-container {
+	min-width: 1400px;
+}
+
+.nav-header-container {
+
+	width: 100%;
+	min-width: 1280px;
+}
+.visual-user-count-group,
+.page-footer .page-footer-inner,
+.visual-status-count-group,
+.visual-btn-group .visual-btn-inner,
+.contents-question {
+	width: 1280px;
+}
+.parallax {
+	padding: 0px;
+	min-height: 900px;
+	overflow: inherit;
+	z-index: 1;
+}
+.search-form {
+	position: relative;
+}
+.page-content-wrapper {
+	position: relative;
+	width: 1280px;
+	min-width: 1280px;
+	margin: auto;
+}
+/* ====================================== */
+// 	적응형 재정의 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	반응형 재정의 시작
+/* ====================================== */
+.navbar-collapse.collapse {
+	display: block !important;
+	height: auto !important;
+	padding-bottom: 0;
+	overflow: visible !important;
+}
+.row {
+	margin: 0px;
+}
+.col-lg-1, .col-lg-10, .col-lg-11, .col-lg-12, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-md-1, .col-md-10, .col-md-11, .col-md-12, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-sm-1, .col-sm-10, .col-sm-11, .col-sm-12, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-xs-1, .col-xs-10, .col-xs-11, .col-xs-12, .col-xs-2, .col-xs-3, .col-xs-4, .col-xs-5, .col-xs-6, .col-xs-7, .col-xs-8, .col-xs-9 {
+	padding:0px;
+}
+
+/* 커스텀 Responsive Table Grid col 2개이상 시작 */
+.row-table-layout {
+	display: table;
+	width: 100%;
+	table-layout: fixed;
+}
+.row-side-noPad {
+	/* display: table-row; */
+	padding-bottom: 50px;
+}
+.row-side-noPad div[class^=col-] {
+	display: table-cell;
+	vertical-align: top;
+	padding: 0px 20px;
+}
+.row-side-noPad .contents-panel-title {
+	position: absolute;
+	top: 0px;
+	width: 100%;
+}
+.row-side-noPad .contents-panel {
+	table-layout: fixed;
+	height: 100%;
+}
+.row-side-noPad .page-title-3depth + .contents-panel {
+	height: calc(100% - 56px);
+}
+.row-side-noPad div[class^=col-]:first-child {
+	padding-left: 0px;
+}
+.row-side-noPad div[class^=col-]:last-child {
+	padding-right: 0px;
+}
+.row-side-noPad .col-side-noPad {
+	height: 0px;
+}
+/* 커스텀 Responsive Table Grid col 2개이상 끝 */
+
+/* ====================================== */
+	반응형 재정의 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	스타일 재정의 시작
+/* ====================================== */
+/* scroll-top-arrow 시작 */
+.scroll-top-arrow, .scroll-top-arrow:focus {
+	background-color: #000;
+	background-image: url(../img/common/btn/btn_scroll_top_arrow.png);
+	background-repeat: no-repeat;
+	background-position: 50% 50%;
+	height: 50px;
+	width: 50px;
+	border-radius: 0px;
+}
+.scroll-top-arrow:hover {
+	background-color: #3378c1;
+}
+/* scroll-top-arrow 끝 */
+
+/* magnific-popup 시작 */
+.mfp-close {
+	font-family: inherit;
+	font-size: 0;
+	line-height: inherit;
+}
+.mfp-close::after, .mfp-close::before {
+	content: "";
+	display: block;
+	background: #fff;
+	height: 2px;
+	width: 40px;
+	position: absolute;
+	left: 0px;
+	top: 50%;
+}
+.mfp-close:before {
+	transform: rotate(-45deg);
+	-webkit-transform: rotate(-45deg);
+	-moz-transform: rotate(-45deg);
+	-ms-transform: rotate(-45deg);
+	-o-transform: rotate(-45deg);
+}
+
+.mfp-close:after {
+	transform: rotate(45deg);
+	-webkit-transform: rotate(45deg);
+	-moz-transform: rotate(45deg);
+	-ms-transform: rotate(45deg);
+	-o-transform: rotate(45deg);
+}
+/* magnific-popup 끝 */
+
+/* cbp-spmenu popup 시작 */
+.close-button-menu {
+	padding: 0px;
+}
+.close-button-menu:after, .close-button-menu:before {
+	width: 40px;
+}
+/* cbp-spmenu popup 끝 */
+
+/* ====================================== */
+	스타일 재정의 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	공통 시작
+/* ====================================== */
+/* 컨텐츠 큰제목 시작 */
+.contents-title {
+	position: relative;
+	margin-bottom: 20px;
+	text-align: center;
+}
+.contents-title .contents-title-text::after {
+	content: "";
+	position: absolute;
+	top: 2px;
+	left: 0px;
+	width: 113px;
+	height: 12px;
+	margin-top: 8px;
+	background: url(../img/common/bu/bu_main_title.png) no-repeat 50% 50%;
+}
+.contents-title .contents-title-text::before {
+	content: "";
+	position: absolute;
+	top: 2px;
+	right: 0px;
+	display: block;
+	width: 113px;
+	height: 12px;
+	margin-top: 8px;
+	background: url(../img/common/bu/bu_main_title.png) no-repeat 50% 50%;
+}
+.contents-title-text {
+	font-weight: bold;
+	position: relative;
+	padding: 0px 140px;
+}
+.page-title {
+	position: relative;
+	padding: 40px 0px 25px 0px;
+	margin-bottom: 40px;
+	text-align: left;
+	border-bottom: 2px solid #000000;
+}
+.page-title-text {
+	font-weight: bold;
+	font-size: 34px;
+	position: relative;
+}
+.page-title-2depth {
+	position: relative;
+	color: #00182c;
+	font-weight: bold;
+	font-size: 30px;
+	margin-top: 60px;
+	padding: 20px 0px 30px 0px;
+	background: url(../img/common/bu/bu_title_2depth.png) no-repeat 0 0;
+}
+.page-title-3depth {
+	position: relative;
+	color: #08b3e3;
+	font-weight: bold;
+	font-size: 24px;
+	margin-top: 50px;
+	padding: 10px 0px 20px 0px;
+	background: url(../img/common/bu/bu_title_3depth.png) no-repeat 0 0;
+}
+.page-title-3depth.title-line span {
+	position: relative;
+	background-color: #fff;
+	padding-right: 20px;
+	z-index: 12;
+}
+.page-title-3depth.title-line::after {
+	content: "";
+	display: block;
+	background-color: #b5bfc8;
+	width: 100%;
+	height: 2px;
+	position: absolute;
+	top: 21px;
+}
+.page-category {
+	position: absolute;
+	top: 40px;
+	right: 0px;
+	padding-left: 30px;
+	background: url(../img/common/icon/ico_category_home.png) no-repeat 0 6px;
+}
+.page-category .category-item {
+	font-size: 16px;
+	float: left;
+	padding-left: 30px;
+	background: url(../img/common/icon/ico_category_arrow.png) no-repeat 12px 50%;
+}
+.page-category .category-item:first-child {
+	padding-left: 0px;
+	background: none;
+}
+/* 컨텐츠 큰제목 끝 */
+
+/* UL블릿 시작 */
+ul.content-ul-list > li {
+	padding-left: 20px;
+	padding-bottom: 2px;
+	background: url(../img/common/bu/bu_li_type_01.png) no-repeat 0 8px;
+}
+/* UL블릿 끝 */
+
+.iframe-body-none {
+	display: none;
+}
+.iframe-body {
+	width: 100%;
+	min-width: 100%;
+	overflow-x:hidden;
+	animation: none !important;
+	animation-name: none !important;
+	transition-timing-function: none !important;
+	-ms-transition-timing-function: none !important;
+	-moz-transition-timing-function: none !important;
+	-webkit-transition-timing-function: none !important;
+	-o-transition-timing-function: none !important;
+	transition-duration: .0s !important;
+	-ms-transition-duration: .0s !important;
+	-moz-transition-duration: .0s !important;
+	-webkit-transition-duration: .0s !important;
+	-o-transition-duration: .0s !important;
+}
+.sub-iframe-body {
+	width: 1020px;
+	min-width: 1020px;
+	overflow-x:hidden;
+	animation: none !important;
+	animation-name: none !important;
+	transition-timing-function: none !important;
+	-ms-transition-timing-function: none !important;
+	-moz-transition-timing-function: none !important;
+	-webkit-transition-timing-function: none !important;
+	-o-transition-timing-function: none !important;
+	transition-duration: .0s !important;
+	-ms-transition-duration: .0s !important;
+	-moz-transition-duration: .0s !important;
+	-webkit-transition-duration: .0s !important;
+	-o-transition-duration: .0s !important;
+}
+.popup-body .content-wrapper {
+	padding: 20px;
+}
+iframe,
+.animationNone,
+.content-wrapper {
+	animation: none !important;
+	animation-name: none !important;
+	transition-timing-function: none !important;
+	-ms-transition-timing-function: none !important;
+	-moz-transition-timing-function: none !important;
+	-webkit-transition-timing-function: none !important;
+	-o-transition-timing-function: none !important;
+	transition-duration: .0s !important;
+	-ms-transition-duration: .0s !important;
+	-moz-transition-duration: .0s !important;
+	-webkit-transition-duration: .0s !important;
+	-o-transition-duration: .0s !important;
+}
+/* 메인팝업 시작 */
+.main-divPopup {
+	position: fixed;
+	border: 2px solid #000;
+	background-color: #fff;
+	overflow: hidden;
+	z-index: 9999;
+}
+.popup-contents-row {
+	position: relative;
+	width: 100%;
+	display: table;
+	box-sizing: border-box;
+}
+.popup-close-group {
+	background-color: #000;
+	border: 2px solid #000;
+	height:40px;
+	text-align: right;
+}
+.popup-close,
+.popup-close-group a {
+	color: #fff;
+}
+.popup-close-group a {
+	margin-right: 20px;
+	font-size: 14px;
+	font-weight: 700;
+	cursor: pointer;
+}
+.popup-close-group a:hover {
+	color: #3378c1;
+}
+.popup-close .gg-checkbox {
+	margin-top: 10px;
+	margin-right: 20px;
+}
+.ie .popup-close .gg-checkbox {
+	margin-top: 6px;
+	margin-right: 20px;
+}
+.popup-close .gg-checkbox > span:after {
+	border: solid #fff;
+	border-width: 0 2px 2px 0;
+}
+.popup-hiddenFrame{
+	display: none;
+}
+/* 메인팝업 끝 */
+
+
+/* 모달팝업 시작 */
+.modal-dialog {
+	margin: 200px auto 30px auto !important;
+}
+.modal-open .modal {
+	z-index: 9999;
+}
+.modal-backdrop.in {
+	z-index: 9998;
+}
+.modal .modal-header {
+    border-bottom: 1px solid #2764af;
+    background-color: #3e90f5;
+    border-radius: 4px 4px 0px 0px;
+}
+.modal-title {
+    color: #fff;
+    font-weight: bold;
+    font-size: 20px;
+}
+.modal .modal-header .close {
+    width: 20px;
+    height: 20px;
+    opacity: 1;
+    margin-top: 4px !important;
+    background-image: url(../img/common/icon/icon_popup_close.png) !important;
+}
+.modal.main-notice {
+
+}
+.modal.main-notice .modal-title {
+	text-align: center;
+}
+.modal.main-notice .modal-dialog {
+	margin: 160px auto 30px auto !important;
+}
+.modal.main-notice .modal-footer {
+	background-color: #000;
+	color:#fff;
+}
+/* 모달팝업 끝 */
+
+.table-reply {
+	padding-left: 66px !important;
+	background: url(../img/common/bg/bg_table_reply.png) no-repeat 8px 50%;
+}
+
+.form-inline .form-group {
+
+}
+.input-label-none {
+	display: none;
+}
+.input-label-display {
+	position: relative;
+    font-size: 16px;
+    padding: 0px 10px 0px 20px;
+    margin: 0px;
+    border: none;
+    background: url(../img/common/bu/bu_title_4depth.png) no-repeat 0 50%;
+	pointer-events: none;
+}
+.input-group[class*="col-"] .input-group-btn {
+	width: 1%;
+}
+.input-group .input-label-display,
+.input-group .input-group-label {
+	display: table-cell;
+    white-space: nowrap;
+	vertical-align: middle;
+    width: 1%;
+}
+.input-group .input-group-label .input-label-display {
+	display: inline-block;
+	width: auto;
+}
+.input-group-btn.input-group-last > .btn,
+.input-group-btn.input-group-last > .btn-group {
+	margin-left: 0px;
+}
+.input-group-btn.input-group-last {
+	padding-left: 10px;
+}
+.input-group-btn.input-group-last > .btn {
+	border-radius: 5px;
+}
+.form-list > .form-inline {
+	margin-bottom: 4px;
+}
+.form-list > .form-inline:last-child {
+	margin-bottom: 0px;
+}
+.form-inline .form-group,
+.form-inline .input-group {
+	padding-left: 10px;
+}
+.form-inline .form-group:first-child,
+.form-inline .input-group:first-child {
+	padding-left: 0px;
+}
+.form-inline .form-group[class*="col-"],
+.form-inline .input-group[class*="col-"] {
+	float: left;
+}
+.control-label {
+	padding: 0px 5px;
+}
+.form-inline .control-label + .form-group,
+.form-inline .control-label + .input-group {
+	padding-left: 0px;
+}
+.form-group input, .input-group input,
+.form-group textarea, .input-group textarea,
+.form-group select, .input-group select {
+	margin: 0px;
+}
+
+.grid-norecords {
+	width: 100%;
+	height: 100%;
+	text-align: center;
+	min-height: 44px;
+	font-size: 0px;
+	background: url(../img/common/icon/ico_no_data.png) no-repeat 50% 50%;
+}
+
+.grid-norecords-2 {
+	width: 100%;
+	height: 100%;
+	text-align: center;
+	min-height: 44px;
+	font-size: 0px;
+	background: url(../img/common/icon/ico_no_data2.png) no-repeat 50% 50%;
+}
+
+/* 커스텀 팝업 시작 */
+.custom-popup-wrapper {
+    position: absolute;
+    display: none;
+    top: 50%;
+	left: 50%;
+    min-width: 120px;
+    min-height: 120px;
+    background-color: #ffffff;
+    border: 2px solid #1990cc;
+    border-radius: 5px;
+    z-index: 999;
+}
+.custom-popup-wrapper.open {
+    display: block;
+}
+.custom-popup-title {
+    position: relative;
+    background-color: #1990cc;
+    color: #fff;
+    font-size: 18px;
+    font-weight: bold;
+    text-align: center;
+    padding: 4px;
+    white-space: nowrap;
+    height: 32px;
+}
+.custom-popup-contents {
+	padding: 14px;
+}
+.custom-popup-close {
+    position: absolute;
+    top: 0px;
+    right: 4px;
+    display: block;
+    width: 32px;
+    height: 32px;
+    font-size: 0px;
+    background: url(../img/common/icon/ico_btn_close.png) no-repeat 50% 50%;
+}
+.icon-limits {
+	width: 48px;
+	height: 48px;
+	display: block;
+    float: left;
+    margin-right: 16px;
+	background: url(../img/common/icon/icon_limits.png) no-repeat 50% 50%;
+}
+/* 커스텀 팝업 끝 */
+
+/* ====================================== */
+	공통 끝
+/* ====================================== */
+
+
+/* ====================================== */
+	메뉴 재정의 시작
+/* ====================================== */
+
+header nav.navbar.white-link .navbar-nav > li > a, nav.navbar.bootsnav.white-link ul.nav > li > a,
+header nav.navbar.white-link .header-social-icon a, nav.navbar.bootsnav.white-link .header-social-icon a,
+header nav.navbar.white-link .header-searchbar a, nav.navbar.bootsnav.white-link .header-searchbar a,
+header nav.navbar.bootsnav ul.nav.white-link > li > a, nav.navbar.white-link .heder-menu-button a {
+	color: #232323;
+}
+.white-link .mobile-toggle span {
+	background: #232323;
+}
+header nav.navbar-fixed-top {
+	background-color: transparent;
+}
+header.sticky nav.navbar-fixed-top {
+	background-color: #ffffff;
+}
+
+/* header animation disable */
+header,
+header nav.navbar-fixed-top {
+	transition-timing-function: inherit;
+	-ms-transition-timing-function: inherit;
+	-moz-transition-timing-function: inherit;
+	-webkit-transition-timing-function: inherit;
+	-o-transition-timing-function: inherit;
+	transition-duration: 0s;
+	-ms-transition-duration: 0s;
+	-moz-transition-duration: 0s;
+	-webkit-transition-duration: 0s;
+	-o-transition-duration: 0s;
+}
+/* dropdown menu animation disable */
+.dropdown-menu,
+.dropdown-menu.animated,
+.dropdown-menu.fadeOut,
+.dropdown-menu.fadeIn {
+	animation: none !important;
+}
+.dropdown-menu.in {
+	display: block;
+}
+nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li.dropdown > ul.in,
+nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li.dropdown > ul > li.dropdown > ul.in {
+	display: block;
+}
+
+.nav-header-inner {
+	align-items: center;
+	display: -ms-flex; display:
+	-webkit-flex; display:
+	-moz-flex;
+	display: flex;
+	height: auto;
+	padding: 0;
+}
+.logo-wrapper {
+	flex: 1 1 auto;
+}
+.navbar-collapse-wrapper {
+	width: auto;
+	float: right;
+}
+nav.navbar.bootsnav li.dropdown .mega-menu-full > ul > li {
+	float: left;
+}
+@media (max-width: 991px) {
+	.navbar-nav li > a,
+	nav.navbar.navbar-default ul.nav > li > a,
+	nav.navbar-brand-top.navbar.navbar-default ul.nav > li > a,
+	header .navbar-nav li > a,
+	header nav.navbar-fixed-top.header-light-transparent.white-link .navbar-nav > li > a,
+	header nav.navbar-fixed-top.header-light.white-link .navbar-nav > li > a,
+	nav.navbar.bootsnav li.dropdown ul.mega-menu-full li > a,
+	header.sticky nav.navbar.navbar-default.navbar-fixed-top ul.nav > li > a,
+	header.sticky nav.navbar.navbar-default.navbar-top ul.nav > li > a,
+	nav.navbar.bootsnav li.dropdown ul.mega-menu-full li.dropdown-header {
+		/* color: #fff; */
+	}
+}
+@media all {
+	.navbar-nav > li {
+		float: left !important;
+		clear: none !important;
+	}
+	nav.navbar.bootsnav .navbar-nav {
+		background-color: inherit !important;
+		margin: 0;
+		float: left !important;
+	}
+	.navbar-collapse.collapse,
+	nav.navbar.bootsnav .navbar-collapse.collapse {
+		display: block!important;
+	}
+	nav.navbar.bootsnav li.dropdown .mega-menu > ul {
+		margin: 0 auto;
+		width: auto;
+		display: table;
+	}
+	.navbar-btn-wrapper {
+		width: auto;
+		padding-left: 30px;
+	}
+}
+
+/* 시추 헤더 스타일 시작 */
+.nav-header-container {
+	height: 140px;
+}
+.navbar-collapse-wrapper,
+.navbar-collapse.collapse,
+nav.navbar.navbar-default ul.nav > li > a {
+	height: 80px !important;
+}
+header nav.navbar .navbar-nav > li > a,
+nav.navbar.bootsnav ul.nav > li > a {
+	font-size: 16px;
+	font-weight: bold;
+	line-height: 80px;
+	padding: 0px 30px;
+	margin: 0px;
+	color: #fff;
+}
+.navbar-global-wrapper {
+	position: relative;
+	display: block;
+	width: 1280px;
+	height: 60px;
+	padding: 10px 0px;
+	margin: 0px auto;
+}
+.nav-header-bg {
+	position: absolute;
+	width: 100%;
+	height: 80px;
+	bottom: 0px;
+	background-color: #00479d;
+}
+.nav-header-line {
+	position: absolute;
+	top: 0px;
+	width: 100%;
+	height: 60px;
+	background-color: #fff;
+}
+.nav-header-inner {
+	display: block;
+}
+.navbar-wrapper {
+	width: 100%;
+	position: relative;
+}
+.navbar-collapse-wrapper {
+	position: relative;
+	width: 1280px;
+	float: none;
+	display: block;
+	margin: 0px auto;
+}
+.navbar-btn-wrapper {
+	position: absolute;
+	right: 0px;
+	top: 0px;
+}
+header .logo-wrapper {
+	display: table-cell;
+	width: auto;
+}
+header .logo .logo-dark {
+	visibility: visible;
+	opacity: 1;
+	width: auto;
+}
+header .global-link-wrapper {
+	position: absolute;
+	right: 0px;
+	top: 10px;
+}
+header .global-link-wrapper ul li {
+	float: left;
+	margin: 0px 5px 0px 0px;
+	padding: 0px 5px 0px 2px;
+}
+header .global-link-wrapper ul li:last-child {
+	margin: 0px;
+	padding: 0px;
+}
+header .global-link-wrapper ul li,
+header .global-link-wrapper ul li a {
+	display: block;
+	height: 40px;
+	line-height: 40px;
+	color: #1f1e1e;
+	font-size: 14px;
+}
+header .global-link-wrapper ul li a.btn {
+	border-radius: 50px;
+	padding: 0px 14px;
+}
+header .global-link-wrapper ul li a.top-btn {
+	padding-left: 30px;
+}
+header .global-link-wrapper ul li a.top-btn.btn-sitemap {
+	background: url(../img/common/icon/ico_top_btn_sitemap.png) no-repeat 0px 50%;
+}
+header .global-link-wrapper ul li a.top-btn.btn-mypage {
+	background: url(../img/common/icon/ico_top_btn_mypage.png) no-repeat 0px 50%;
+}
+header .global-link-wrapper .ip-zone {
+	border-radius: 50px;
+	color: #001221;
+	background-color: #9cb4cd;
+	padding: 7px 20px;
+	font-size: 14px;
+}
+header .global-link-wrapper .username-zone {
+	display: block;
+	padding-left: 30px;
+	background: url(../img/common/icon/icon_avatar.png) no-repeat 0px 50%;
+	font-size: 14px;
+}
+header .global-link-wrapper .username {
+	color: #00c48a;
+	font-weight: bold;
+}
+header .global-link-wrapper ul li a.top-btn-member {
+	line-height: 28px;
+	height: 30px;
+	margin-top: 4px;
+	padding-left: 40px;
+	color: #fff;
+}
+header .global-link-wrapper ul li a.btn.login-btn {
+	background: #00c48a url(../img/common/icon/ico_top_login.png) no-repeat 12px center;
+}
+header .global-link-wrapper ul li a.btn.logout-btn {
+	background: #00c48a url(../img/common/icon/ico_top_logout.png) no-repeat 12px center;
+}
+header .global-link-wrapper ul li a.btn.member-btn {
+	background: #1e2929 url(../img/common/icon/ico_top_user.png) no-repeat 12px center;
+}
+header .global-link-wrapper ul li a.btn.secession-btn {
+	background: #1e2929 url(../img/common/icon/ico_top_secession.png) no-repeat 12px center;
+}
+header .global-link-wrapper ul li a.btn.id-pw-btn {
+	background: #1e2929 url(../img/common/icon/ico_top_id_pw.png) no-repeat 12px center;
+}
+header .header-right-menu {
+	display: block;
+	width: 80px;
+	height: 80px;
+	float: left;
+}
+header .header-right-menu.header-menu-all {
+	background: #00345f url(../img/common/icon/ico_header_menu_all.png) no-repeat 50% 50%;
+}
+header .header-right-menu.header-menu-01 {
+	background: #00a999 url(../img/common/icon/ico_header_menu_01.png) no-repeat 50% 10px;
+}
+header .header-right-menu.header-menu-02 {
+	background: #02bdac url(../img/common/icon/ico_header_menu_02.png) no-repeat 50% 5px;
+}
+header .header-right-menu.header-menu-03 {
+	background: #13a7ce url(../img/common/icon/ico_header_menu_03.png) no-repeat 50% 10px;
+}
+header .header-right-menu.header-menu-04 {
+	background: #3378c1 url(../img/common/icon/ico_header_menu_04.png) no-repeat 50% 8px;
+}
+header .global-link-wrapper ul li a.btn.notice-btn {
+	background: #3378c1 url(../img/common/icon/ico_top_notice_02.png) no-repeat 12px center;
+}
+.circulation-notice {
+	position: relative;
+}
+.circulation-notice .badge {
+	position: absolute;
+	top: -4px;
+	right: -4px;
+	font-size: 14px;
+}
+.badge-danger {
+	background-color: #ed6b75;
+}
+header .header-menu-text {
+	color: #fff;
+	font-size: 13px;
+	display: block;
+	width: 100%;
+	text-align: center;
+	padding-top: 44px;
+	line-height: 15px;
+}
+header .dropdown.simple-dropdown {
+	position: relative;
+}
+header .dropdown.simple-dropdown.on > a,
+header .dropdown.simple-dropdown:hover > a {
+	color: #00c48a !important;
+}
+header .dropdown.simple-dropdown::before {
+	content: "";
+	position: absolute;
+	top: 0px;
+	left: 50%;
+	width: 0%;
+	height: 4px;
+	background-color: #00c48a;
+	transition-timing-function: ease-in-out;
+	-ms-transition-timing-function: ease-in-out;
+	-moz-transition-timing-function: ease-in-out;
+	-webkit-transition-timing-function: ease-in-out;
+	-o-transition-timing-function: ease-in-out;
+	transition-duration: .2s;
+	-ms-transition-duration: .2s;
+	-moz-transition-duration: .2s;
+	-webkit-transition-duration: .2s;
+	-o-transition-duration: .2s;
+}
+header .dropdown.simple-dropdown.on::before,
+header .dropdown.simple-dropdown:hover::before {
+	content: "";
+	left: 0%;
+	width: 100%;
+}
+header .dropdown.simple-dropdown::after {
+	content: "";
+	position: absolute;
+	top: 30px;
+	left: -10px;
+    width: 18px;
+	height: 18px;
+	background:url(../img/common/bg/bg_nav_li_line.png) no-repeat left 50%;
+}
+header .dropdown.simple-dropdown:first-child::after {
+	background: none;
+}
+header .simple-dropdown .dropdown-menu > li > a {
+	font-size: 14px;
+	color: #e2e2e2;
+}
+header .simple-dropdown .dropdown-menu {
+	background: rgb(0, 52, 95);
+}
+nav.navbar.bootsnav .simple-dropdown .dropdown-menu > li:hover {
+	background-color: #003f73;
+}
+header.sticky nav.navbar-fixed-top {
+	background-color: inherit;
+}
+header.sticky .nav-header-bg {
+	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
+}
+header.sticky .nav-header-line {
+	background-color: #f1f4f7;
+	height: 44px;
+}
+header.sticky .nav-header-container {
+	height: 114px;
+}
+header.sticky .navbar-global-wrapper {
+	height: 44px;
+	padding: 4px 0px;
+}
+header.sticky .global-link-wrapper {
+	top: 2px;
+}
+/* 시추 헤더 스타일 끝 */
+
+/* magnificPopup 커스텀 시작 */
+.mfp-wrap {
+	overflow: auto;
+}
+.mfp-container {
+	display: table;
+	padding: 0px;
+}
+.mfp-container:before {
+	content: none;
+}
+.mfp-close::after,
+.mfp-close::before {
+	background: #fff;
+	left: 12px;
+	top: 28px;
+}
+.mfp-bg {
+	background: #fff;
+}
+button.mfp-close,
+.mfp-close,
+.mfp-close:active {
+	position: fixed !important;
+	right: 0px;
+	top: 0px;
+	width: 60px;
+	height: 60px;
+	background-color: #000;
+}
+.mfp-close:hover {
+	background-color: #3378c1;
+}
+/* magnificPopup 커스텀 끝 */
+
+/* magnificPopup - 전체메뉴 시작 */
+.menu-all-popup-wrapper .mfp-content.menu-all-popup-content {
+	display: table-cell;
+	vertical-align: middle;
+}
+.menu-all-popup-wrapper .menu-all-popup {
+	width: 1280px;
+	min-width: 1280px;
+	margin: 0px auto;
+	padding: 40px;
+	background-color: #fff;
+	border: 2px solid #000000;
+	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+}
+.menu-all-popup-wrapper .menu-all-popup .contents-row {
+	padding: 40px;
+}
+.menu-all-popup-wrapper .menu-all-box {
+	border: 1px solid #b5b5b5;
+	margin: 10px;
+}
+.menu-all-popup-wrapper .menu-all-title {
+	border-bottom: 1px solid #ececec;
+	padding: 13px 30px;
+	background-color: #fbfbfb;
+	font-size: 20px;
+}
+.menu-all-popup-wrapper .menu-all-group {
+	padding-left: 30px;
+}
+.menu-all-popup-wrapper .menu-all-item {
+	padding-left: 18px;
+	margin: 10px 0px;
+	background:url(../img/common/bu/bu_menu_all_item.png) no-repeat left 50%;
+}
+.menu-all-popup .contents-title {
+	padding: 0px 140px 20px 140px;
+	margin: 0px;
+}
+.menu-all-popup .contents-row {
+	padding: 0px !important;
+}
+/* magnificPopup - 전체메뉴 끝 */
+
+
+
+/* magnificPopup - 임시 비밀번호 확인 시작 */
+.temp-password-popup-wrapper .mfp-content.temp-password-popup-content {
+	display: table-cell;
+	vertical-align: middle;
+}
+.temp-password-popup-wrapper .temp-password-popup {
+	width: 600px;
+	min-width: 500px;
+	margin: 0px auto;
+	padding: 40px;
+	background-color: #fff;
+	border: 2px solid #000000;
+	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+}
+/* magnificPopup - 임시 비밀번호 확인 끝 */
+
+/* magnificPopup - 시추정보 보유현황 시작 */
+.status-popup-wrapper .mfp-content.status-popup-content {
+	display: table-cell;
+	vertical-align: middle;
+}
+.status-popup-wrapper .status-popup {
+	width: 1280px;
+	min-width: 1280px;
+	margin: 0px auto;
+	padding: 40px;
+	background-color: #fff;
+	border: 2px solid #000000;
+	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+}
+/* magnificPopup - 시추정보 보유현황 끝 */
+/* ====================================== */
+// 	메뉴 재정의 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	풋터 시작
+/* ====================================== */
+.page-footer { position: relative; height: 100px; background-color: #fff; border-top:1px solid #b8bfc6; padding: 15px 0px; font-size: 12px; clear: both; }
+.page-footer .page-footer-inner { margin-top: 5px; margin: 0px auto; }
+.page-footer .page-footer-inner .page-footer-logo { float: left; margin-top: 5px; }
+.page-footer .page-footer-inner .page-footer-container { position: absolute; display: inline-block; margin-left: 20px; }
+.page-footer .page-footer-inner .page-footer-container span {line-height: 16px;}
+.page-footer .page-footer-inner .page-footer-container .address { display: block; font-weight: bold; }
+.page-footer .page-footer-inner .page-footer-container .tel { display: block; font-weight: bold; }
+.page-footer .page-footer-inner .page-footer-container .copyright { display: block; color: #8d8d8d; }
+.page-footer .page-footer-link { position: relative; float: right; width: 528px; }
+.page-footer .page-footer-link .page-footer-info { position: absolute; top: 0px; right: 0px; font-weight: bold; }
+.page-footer .page-footer-link .page-footer-info li { float: left; margin-left: 10px; padding-left: 15px; background: url(../img/common/bu/bu_footer_link.png) no-repeat left 40%; }
+.page-footer .page-footer-link .page-footer-info li:first-child { background: none; }
+.page-footer .page-footer-link .page-footer-institution { position: absolute; top: 26px; right: 0px; }
+.page-footer .page-footer-link .page-footer-institution .page-footer-select-set { float: left; margin-left: 10px; }
+.page-footer .page-footer-link .page-footer-institution .page-footer-select-set .select-container { float: left; }
+.page-footer .page-footer-link .page-footer-institution .page-footer-select-set button { margin-left: 4px; }
+/* ====================================== */
+// 	풋터 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	메인 레이아웃 시작
+/* ====================================== */
+.main section {
+	padding: 0px 0px;
+}
+.main .contents-row {
+	margin: 0px auto;
+	padding: 34px 0px;
+	z-index: 2;
+}
+
+/* 시추 메인비쥬얼 시작 */
+.parallax-container {
+	position: absolute;
+	width: 100%;
+	height: 100%;
+	right: 0;
+	left: 0;
+}
+.visual-middle-main {
+	position: relative;
+	display: table;
+	height: 100%;
+	width: 100%;
+}
+.visual-bottom-group {
+	position: relative;
+	display: table-cell;
+	vertical-align: bottom;
+}
+.visual-btn-group {
+	height: 220px;
+	width: 100%;
+	background-color: #3378c1;
+	background-image: linear-gradient(141deg, #3378c1 0%, #40abcc 50%, #4ad1d4 80%);
+}
+.visual-user-count-wrapper {
+	position: absolute;
+	top: 180px;
+	width: 100%;
+	z-index: 1;
+}
+.visual-user-count-group {
+	margin: 0px auto;
+}
+.visual-user-count-group .user-count-box {
+	position: relative;
+	width: 300px;
+	font-size: 20px;
+	background-color: #4ad0d4;
+	border-radius: 50px;
+	clear: both;
+	float: right;
+	padding: 4px 20px 4px 0px;
+	margin-bottom: 8px;
+}
+.visual-user-count-group .user-count-box .count-title {
+	background-color: #3378c1;
+	border-radius: 50px;
+	color: #fff;
+	padding: 5px 20px;
+}
+.visual-user-count-group .user-count-box .user-count {
+	float: right;
+	color: #00345f;
+	font-weight: bold;
+}
+.visual-status-count-group {
+	margin: 0px auto;
+}
+.visual-status-count-group .status-count-box {
+	position: relative;
+	width: 660px;
+	height: 55px;
+	font-size: 26px;
+	background-color: #3378c1;
+	background-image: linear-gradient(141deg, #3378c1 0%, #40abcc 50%, #4ad1d4 80%);
+	border-radius: 50px;
+	clear: both;
+	float: right;
+	padding: 4px 4px 4px 20px;
+	margin-top: -30px;
+	z-index: 1;
+}
+.visual-status-count-group .status-count-box .count-title {
+	color: #fff;
+	padding: 12px 20px;
+	display: block;
+	float: left;
+}
+.visual-status-count-group .status-count-box .status-count {
+	color: #00345f;
+	font-weight: bold;
+	vertical-align: middle;
+}
+.visual-status-count-group .status-count-box .value-group {
+	float: right;
+}
+.visual-status-count-group .status-count-box .status-btn {
+	color: #00345f;
+	line-height: 32px;
+	height: 47px;
+	padding-left: 26px;
+	padding-right: 65px;
+	margin-left: 10px;
+	border-radius: 50px;
+	font-size: 20px;
+	background: #fff url(../img/common/icon/ico_parallax_status_btn.png) no-repeat 130px center;
+}
+.visual-btn-group .visual-btn-inner {
+	position: relative;
+	margin: 0px auto;
+}
+.visual-btn-group .visual-btn-inner .visual-btn-align {
+	position: absolute;
+	top: 30px;
+	right: 0px;
+	z-index: 1;
+}
+.visual-btn-group .parallax-btn-text {
+	display: block;
+	line-height: 16px;
+	font-size: 14px;
+	text-align: center;
+	color: #fff;
+	margin-top: 108px;
+}
+.visual-btn-group .visual-btn-box {
+	width: 100px;
+	height: 100px;
+	float: left;
+	border-radius: 10px;
+	margin-left: 30px;
+	cursor: pointer;
+	background-color: rgba(0, 125, 169, 0.6);
+	background-repeat: no-repeat;
+	background-position: 50% 50%;
+}
+.visual-btn-box.visual-btn-01 {
+	background-image: url(../img/common/icon/ico_parallax_btn_01.png);
+}
+.visual-btn-box.visual-btn-02 {
+	background-image: url(../img/common/icon/ico_parallax_btn_02.png);
+}
+.visual-btn-box.visual-btn-03 {
+	background-image: url(../img/common/icon/ico_parallax_btn_03.png);
+}
+.visual-btn-box.visual-btn-04 {
+	background-image: url(../img/common/icon/ico_parallax_btn_04.png);
+}
+.visual-btn-box.visual-btn-05 {
+	background-image: url(../img/common/icon/ico_parallax_btn_05.png);
+}
+.visual-btn-box.visual-btn-06 {
+	background-image: url(../img/common/icon/ico_parallax_btn_06.png);
+}
+.main-slogan {
+	position: absolute;
+	left: 40%;
+	top: 18%;
+	width: 360px;
+	height: 128px;
+	background:url(../img/common/bg/main_parallax_text.png) no-repeat 0px 0px;
+}
+.main-img-map {
+	position: absolute;
+	left: 0px;
+	bottom: 31px;
+	width: 100%;
+	height: 777px;
+	background:url(../img/common/bg/main_parallax_img_map.png) no-repeat 50% 0px;
+}
+.main-img-child {
+	position: absolute;
+	left: 10%;
+	top: -5%;
+	width: 335px;
+	height: 1162px;
+	background:url(../img/common/bg/main_parallax_img_child.png) no-repeat 0px 0px;
+}
+/* 시추 메인비쥬얼 끝 */
+
+/* ==== main flexslider 커스텀 시작 ==== */
+/* flexslider 기본 시작 */
+.flexslider-wrapper {
+
+}
+.flexslider {
+	height: auto !important;
+	overflow: visible;
+	background: none;
+}
+.flex-control-paging li a {
+	background:#dadada;
+}
+
+.flex-control-paging li a.flex-active {
+	background: #1db7f0;
+}
+.flex-control-nav li {
+	margin:0 4px;
+}
+.flex-direction-nav a {
+	margin: -30px 0 0 !important;
+}
+.flex-viewport {
+	overflow: hidden !important;
+	width: auto;
+}
+.flexslider .slides img {
+	display: inline;
+}
+.flex-control-paging li a {
+	width: 24px;
+	height: 8px;
+}
+.flex-control-nav {
+	top: -20px;
+	right: 90px;
+	width: auto;
+	height: 20px;
+}
+.flex-direction-nav a {
+	width: 41px;
+	height: 41px;
+}
+.flex-direction-nav a:before {
+	background: url(../img/common/btn/flex_prev_btn.png) no-repeat 0% 50%;
+	width: 41px;
+	height: 41px;
+}
+.flex-direction-nav a:hover:before {
+	background: url(../img/common/btn/flex_prev_btn_over.png) no-repeat 0% 50%;
+}
+.flex-direction-nav a.flex-next:before {
+	background: url(../img/common/btn/flex_next_btn.png) no-repeat 100% 50%;
+	width: 41px;
+	height: 41px;
+}
+.flex-direction-nav a.flex-next:hover:before {
+	background: url(../img/common/btn/flex_next_btn_over.png) no-repeat 100% 50%;
+}
+.flex-pauseplay {
+	position: absolute;
+	top: -3px;
+	right: 92px;
+}
+.flex-pauseplay a,
+.flex-pauseplay a::before {
+	font-family: inherit !important;
+	font-size: 0px !important;
+	display: inherit !important;
+	content: inherit !important;
+}
+.flex-pauseplay a.flex-play {
+	background: url(../img/common/btn/flex_play.png) no-repeat 50% 50% !important;
+}
+.flex-pauseplay a.flex-pause {
+	background: url(../img/common/btn/flex_pause.png) no-repeat 50% 50% !important;
+}
+/* flexslider 기본 끝 */
+
+/* 공지사항 바로가기 flexslider 시작 */
+.main .contents-row.main-notice {
+	width: 1400px;
+}
+.main-notice .main-con-link-box {
+	display: flex;
+	flex-grow: 1;
+	-webkit-box-flex: 1;
+	-ms-flex: 1;
+}
+.main-notice .main-con-link {
+	position:relative;
+	float: left;
+	padding-left: 25px;
+	cursor:pointer;
+}
+.main-notice .main-con-link:first-child {
+	padding-left: 0px;
+}
+.main-notice .main-con {
+	position:relative;
+	width: 400px;
+	height: 240px;
+	margin: 5px !important;
+}
+.main-notice .main-con-link .main-con-box {
+	position: absolute;
+	top: 0px;
+	left: 0px;
+	width: 400px;
+	height: 240px;
+	padding: 30px 26px;
+	background-color: #fff;
+}
+.main-notice .main-con-link .main-con-box:hover {
+	top: -5px;
+	left: -5px;
+	border: 2px solid #19b3e5;
+	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
+	z-index: 2;
+}
+.main-notice .main-con-box-inner {
+	position: relative;
+	width: 100%;
+	height: 100%;
+}
+.main-notice .main-con-link .main-con-link-title {
+	font-size: 16px;
+	margin-bottom: 20px;
+	font-weight: bold;
+}
+.main-notice .main-con-link .main-con-link-content {
+	color: #5b6368;
+}
+.main-notice .main-con-link .main-con-link-date {
+	position: absolute;
+	bottom: 0px;
+	margin-top: 15px;
+	color: #82878b;
+}
+.main-notice .flex-viewport {
+	margin: 0px 60px;
+	padding-bottom: 20px;
+	height: 270px;
+}
+.main-notice .flex-direction-nav .flex-prev {
+	top:50%;
+	left:0px !important;
+	opacity:1 !important;
+}
+.main-notice .flex-direction-nav .flex-next {
+	top:50%;
+	left:auto !important;
+	right:0px !important;
+	opacity:1 !important;
+}
+/* 공지사항 바로가기 flexslider 끝 */
+
+/* 관련 사이트 배너 flexslider 시작 */
+.main .contents-row.main-banner-wrapper {
+	width: 1400px;
+}
+.main-banner-wrapper .flexslider-wrapper {
+
+}
+.main-banner-wrapper .main-con-link {
+	position:relative;
+	width: 124px;
+	float: left;
+	text-align: center;
+	cursor:pointer;
+	margin-bottom: 10px;
+}
+.main-banner-wrapper .main-con-box.main-box-center .main-con-link {
+	width: 25%;
+	margin: 0px;
+	padding-top: 20px;
+}
+.main-banner-wrapper .main-con-link:first-child::before {
+	border-left: 0px;
+}
+.main-banner-wrapper .main-con-link .main-con-link-title {
+	margin-top: 5px;
+	font-size: 15px;
+	height: 60px;
+}
+.main-banner-wrapper .flex-viewport {
+	margin: 0px 60px;
+	padding-bottom: 20px;
+}
+.main-banner-wrapper .flex-direction-nav .flex-prev {
+	top:50%;
+	left:0px !important;
+	opacity:1 !important;
+}
+.main-banner-wrapper .flex-direction-nav .flex-next {
+	top:50%;
+	left:auto !important;
+	right:0px !important;
+	opacity:1 !important;
+}
+/* 관련 사이트 배너 flexslider 끝 */
+/* ==== main flexslider 커스텀 끝 ==== */
+
+/* 문의 연락처 시작 */
+.contact-box {
+	height: 240px;
+	padding: 30px;
+}
+.contact-title {
+	font-size: 26px;
+	font-weight: bold;
+	margin-bottom: 26px;
+}
+.contact-text {
+	margin-left: 120px;
+	margin-bottom: 5px;
+	font-size: 20px;
+    .contact-text-con {    
+        &>.second-tel {
+            padding-left: 178px;
+        }	
+    }
+}
+.contact-box-02 .contact-text {
+   padding-top: 0px;
+}
+.contact-text p {
+   padding-bottom: 12px;
+}
+.contact-text-title {
+   padding: 4px 24px;
+   margin-right: 10px;
+   border-radius: 50px;
+}
+.contact-box.contact-box-01 {
+   margin-right: 16px;
+   background-color: #e2f1f9;
+   background-image: url(../img/common/bg/main_contact_box_01.png);
+   background-repeat: no-repeat;
+   background-position: 30px 100px;
+}
+.contact-box.contact-box-01 .text-primary {
+   color: #0081ce;
+}
+.contact-box.contact-box-01 .contact-text-title {
+   background-color: #8fd8ff;
+}
+.contact-box.contact-box-02 {
+   margin-left: 16px;
+   background-color: #eff9eb;
+   background-image: url(../img/common/bg/main_contact_box_02.png);
+   background-repeat: no-repeat;
+   background-position: 30px 100px;
+}
+.contact-box.contact-box-02 .text-primary {
+	color: #207167;
+}
+.contact-box.contact-box-02 .contact-text-title {
+	background-color: #9ceacf;
+}
+/* 문의 연락처 끝 */
+
+/* 비쥬얼영역 - 2차 시작 */
+.main-info-container {
+	margin-top: 140px;
+	margin-bottom: 30px;
+}
+.main-info-wrapper {
+	width: 1280px;
+	margin: 35px auto 0px auto;
+}
+.main-info-wrapper .main-info-left {
+	float: left;
+}
+.main-info-wrapper .main-info-right {
+	float: right;
+	width: 378px;
+}
+.main-info-wrapper .main-info-left {
+	width: 853px;
+}
+.main-info-wrapper .status-count-box {
+	position: relative;
+	width: 100%;
+	height: 75px;
+	font-size: 26px;
+	background-color: #d0e3f1;
+	border-radius: 10px;
+	padding: 4px 4px 4px 20px;
+	margin-top: 23px;
+}
+.main-info-wrapper .status-count-box .count-title {
+	position: absolute;
+	left: 0px;
+	top: 0px;
+	height: 75px;
+	line-height: 75px;
+	display: block;
+	background:#3378c1 url(../img/common/bg/bg_main_info_icon_01.png) no-repeat 25px 50%;
+	border-radius: 10px;
+	padding: 0px 30px 0px 110px;
+	color: #fff;
+	font-weight: bold;
+}
+.main-info-wrapper .status-count-box .value-group {
+	position: absolute;
+	top: 13px;
+	right: 20px;
+}
+.main-info-wrapper .status-count-box .status-count {
+	color: #00345f;
+    font-weight: bold;
+	vertical-align: middle;
+	line-height: 50px;
+}
+.main-info-wrapper .status-count-box .status-btn {
+	color: #00345f;
+    line-height: 32px;
+    height: 47px;
+    padding-left: 26px;
+    padding-right: 65px;
+    margin-left: 10px;
+    border-radius: 50px;
+    font-size: 20px;
+    background: #fff url(../img/common/icon/ico_parallax_status_btn.png) no-repeat 130px center;
+}
+.flexslider-visual-wrapper {
+	position: relative;
+}
+.flexslider-visual-wrapper .flex-control-nav {
+	width: 100%;
+	top: auto;
+	bottom: 10px;
+	right: auto;
+}
+.flexslider-visual-wrapper .flex-pauseplay {
+	top: auto;
+	bottom: 10px;
+	right: 80px;
+}
+.flexslider-visual-wrapper .flex-direction-nav .flex-prev {
+	top: auto;
+    left: auto;
+    opacity: 1 !important;
+    right: 74px;
+    bottom: 15px;
+}
+.flexslider-visual-wrapper .flex-direction-nav .flex-next {
+	top: auto;
+    left: auto !important;
+    right: 16px !important;
+    opacity: 1 !important;
+    bottom: 15px;
+}
+.flexslider-visual-wrapper .flex-direction-nav a {
+	width: 25px;
+	height: 25px;
+	margin: 0px !important;
+}
+.flexslider-visual-wrapper .flex-direction-nav a.flex-next:before {
+	background: url(../img/common/btn/flex_visual_next_btn.png) no-repeat 100% 50%;
+    width: 25px;
+    height: 25px;
+}
+.flexslider-visual-wrapper .flex-direction-nav a:hover.flex-next:before {
+	background: url(../img/common/btn/flex_visual_next_btn_over.png) no-repeat 100% 50%;
+}
+.flexslider-visual-wrapper .flex-direction-nav a:before {
+	background: url(../img/common/btn/flex_visual_prev_btn.png) no-repeat 0% 50%;
+    width: 25px;
+    height: 25px;
+}
+.flexslider-visual-wrapper .flex-direction-nav a:hover:before {
+	background: url(../img/common/btn/flex_visual_prev_btn_over.png) no-repeat 0% 50%;
+}
+.flexslider-visual-wrapper .flex-pauseplay a {
+	width: 25px;
+	height: 25px;
+	opacity:1 !important;
+}
+.flexslider-visual-wrapper .flex-pauseplay a.flex-disabled {
+	display: none  !important;
+}
+.flexslider-visual-wrapper .flex-pauseplay a.flex-pause {
+	background: url(../img/common/btn/flex_visual_pause.png) no-repeat 50% 50% !important;
+}
+.flexslider-visual-wrapper .flex-pauseplay a:hover.flex-pause {
+	background: url(../img/common/btn/flex_visual_pause_over.png) no-repeat 50% 50% !important;
+}
+.flexslider-visual-wrapper .flex-pauseplay a.flex-play {
+	background: url(../img/common/btn/flex_visual_play.png) no-repeat 50% 50% !important;
+}
+.flexslider-visual-wrapper .flex-pauseplay a:hover.flex-play {
+	background: url(../img/common/btn/flex_visual_play_over.png) no-repeat 50% 50% !important;
+}
+.flexslider-visual-wrapper .flex-control-paging li a {
+	width: 14px;
+	height: 14px;
+	background: none;
+	border: 4px solid #fff;
+}
+.flexslider-visual-wrapper .flex-control-paging li a:hover {
+	border: 4px solid #000;
+}
+.flexslider-visual-wrapper .flex-control-paging li a.flex-active {
+	background: #fff;
+	width: 30px;
+	height: 14px;
+}
+.flexslider-visual-wrapper .flex-control-paging li a:hover.flex-active {
+	background: #000;
+}
+.flexslider-visual .flex-viewport,
+.main-info-board-wrapper {
+	height: 330px;
+	border-radius: 10px;
+}
+.main-info-board-wrapper {
+	position: relative;
+	border: 1px solid #c6c6c6;
+	padding: 15px 30px;
+}
+.main-info-board-wrapper .nav-tabs {
+	border-bottom: 1px solid #c0c0c0;
+}
+.main-info-board-wrapper .nav-tabs > li {
+	position: relative;
+	margin-bottom: 0px;
+	padding: 0px 20px;
+}
+.main-info-board-wrapper .nav-tabs > li::before {
+	content: "";
+    position: absolute;
+    top: 50%;
+    right: -5px;
+    width: 10px;
+    height: 10px;
+    margin-top: -5px;
+    border-radius: 50%;
+    background-color: #dbdbdb;
+    z-index: 1;
+}
+.main-info-board-wrapper .nav-tabs > li:first-child {
+	padding-left: 0px;
+}
+.main-info-board-wrapper .nav-tabs > li:last-child {
+	padding-right: 0px;
+}
+.main-info-board-wrapper .nav-tabs > li:last-child::before {
+	display: none;
+}
+.main-info-board-wrapper .nav-tabs > li > a {
+	position: relative;
+	height: 60px;
+	font-size: 24px;
+	font-weight: bold;
+	color: #a1a1a1;
+	padding: 10px 0px 20px 0px;
+}
+.main-info-board-wrapper .nav-tabs > li > a,
+.main-info-board-wrapper .nav-tabs > li > a:focus,
+.main-info-board-wrapper .nav-tabs > li > a:hover  {
+	outline: none;
+	background: none;
+	border: none;
+}
+.main-info-board-wrapper .nav-tabs > li.active > a,
+.main-info-board-wrapper .nav-tabs > li.active > a:focus,
+.main-info-board-wrapper .nav-tabs > li.active > a:hover {
+	color: #000;
+}
+.main-info-board-wrapper .nav-tabs > li.active > a::after {
+	content: "";
+	position: absolute;
+	bottom: 0px;
+    left: 0px;
+	width: 100%;
+	height: 4px;
+	background-color: #00479d;
+}
+.main-info-board-wrapper .main-info-board-list {
+	margin-top: 20px;
+}
+.main-info-board-wrapper .main-info-board-list > li {
+	position: relative;
+	border-bottom: 1px solid #c0c0c0;
+	padding-bottom: 10px;
+	margin-bottom: 10px;
+	height: 66px;
+}
+.main-info-board-wrapper .main-info-board-list > li:last-child {
+	border-bottom: none;
+}
+.main-info-board-wrapper .main-info-board-more-btn {
+	position: absolute;
+    top: 29px;
+    right: 28px;
+	width: 69px;
+	height: 28px;
+	background: url(../img/common/btn/btn_main_more.png) no-repeat center center;
+	cursor: pointer;
+	opacity: 0.5;
+}
+.main-info-board-wrapper .main-info-board-more-btn:hover {
+	opacity: 1;
+}
+.main-info-board-wrapper .main-info-link-title {
+	position: absolute;
+	right: 0px;
+	width: 245px;
+	font-size: 16px;
+	line-height: 18px;
+}
+.main-info-board-wrapper .main-info-link-date {
+	position: absolute;
+    left: 0px;
+    width: 60px;
+    text-align: center;
+    background-color: #00479d;
+    border-radius: 10px;
+	color: #fff;
+	letter-spacing: -1px;
+	padding: 11px 0px;
+	line-height: 16px;
+}
+
+.main-info-user-count-group {
+	margin-top: 23px;
+}
+.main-info-user-count-group .user-count-box {
+	position: relative;
+	width: 100%;
+	font-size: 20px;
+	background-color: #d0e3f1;
+	border-radius: 10px;
+	clear: both;
+	float: right;
+	padding: 6px 20px 6px 0px;
+	margin-bottom: 3px;
+}
+.main-info-user-count-group .user-count-box .count-title {
+	background-color: #3378c1;
+	border-radius: 10px;
+	color: #fff;
+	padding: 7px 20px;
+}
+.main-info-user-count-group .user-count-box .user-count {
+	float: right;
+	color: #00345f;
+	font-weight: bold;
+}
+
+.shortcuts-btn-group {
+	width: 100%;
+	margin: 0px auto;
+	background-color: #f6f6f6;
+}
+.shortcuts-btn-group .shortcuts-btn-inner {
+	position: relative;
+	width: 1280px;
+	height: 300px;
+	margin: 0px auto;
+}
+.shortcuts-btn-group .shortcuts-btn-inner .shortcuts-btn-align {
+	position: absolute;
+	top: 60px;
+	right: 0px;
+	z-index: 1;
+}
+.shortcuts-btn-group .shortcuts-btn-inner .shortcuts-visual-align {
+	position: absolute;
+	bottom: 0px;
+	left: -50px;
+	width: 514px;
+	height: 301px;
+	background: url(../img/common/bg/bg_shortcuts_img_01.png) no-repeat center center;
+	z-index: 1;
+}
+.shortcuts-btn-group .shortcuts-btn-text {
+	display: block;
+	line-height: 18px;
+	font-size: 16px;
+	text-align: center;
+	color: #000;
+	width: 140px;
+	margin-top: 122px;
+    margin-left: -14px;
+}
+.shortcuts-btn-group .shortcuts-btn-box {
+	width: 112px;
+	height: 112px;
+	float: left;
+	border-radius: 20px;
+	margin-left: 30px;
+	cursor: pointer;
+	background-color: #fff;
+	background-repeat: no-repeat;
+	background-position: 50% 50%;
+	border: 1px solid #a9a9a9;
+}
+.shortcuts-btn-group .shortcuts-btn-box:hover {
+	background-color: #d0e3f1;
+	border: 2px solid #3378c1;
+}
+.shortcuts-btn-box.shortcuts-btn-01 {
+	background-image: url(../img/common/icon/ico_parallax_btn_01_dark.png);
+}
+.shortcuts-btn-box.shortcuts-btn-02 {
+	background-image: url(../img/common/icon/ico_parallax_btn_02_dark.png);
+}
+.shortcuts-btn-box.shortcuts-btn-03 {
+	background-image: url(../img/common/icon/ico_parallax_btn_03_dark.png);
+}
+.shortcuts-btn-box.shortcuts-btn-04 {
+	background-image: url(../img/common/icon/ico_parallax_btn_04_dark.png);
+}
+.shortcuts-btn-box.shortcuts-btn-05 {
+	background-image: url(../img/common/icon/ico_parallax_btn_05_dark.png);
+}
+.shortcuts-btn-box.shortcuts-btn-06 {
+	background-image: url(../img/common/icon/ico_parallax_btn_06_dark.png);
+}
+/* 비쥬얼영역 - 2차 끝 */
+
+/* ====================================== */
+// 	메인 레이아웃 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	서브 레이아웃 시작
+/* ====================================== */
+
+.sub .parallax {
+	background-image: url(../img/common/bg/sub_parallax.png);
+	height: 300px;
+	min-height: 300px;
+	background-size: auto;
+	background-position: 50% 0px !important;
+	background-repeat: no-repeat;
+	background-color: #afd2ea;
+}
+.page-container {
+	position: relative;
+	overflow: inherit;
+	z-index: 1;
+}
+.page-content {
+	padding-left: 260px;
+	padding-bottom: 80px;
+	width: 100%;
+}
+/* 왼쪽메뉴 시작 */
+.page-sidebar-wrapper {
+	float: left;
+	width: 222px;
+	margin-top: -67px;
+	padding-bottom: 40px;
+}
+.page-sidebar-wrapper .heading {
+	height: 67px;
+	text-align: center;
+	background-color: #3378c1;
+	display: table-row;
+}
+.page-sidebar-wrapper .heading .heading-title {
+	display: table-cell;
+	vertical-align: middle;
+	width: 222px;
+	font-size: 24px;
+	color: #fff;
+	padding: 0px 10px;
+}
+.page-sidebar-menu {
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+.page-sidebar-menu .nav-item {
+	border: 1px solid #d3d3d3;
+	border-bottom: 0px;
+	font-size: 18px;
+	font-weight: bold;
+	background-color: #f3f4f8;
+}
+.page-sidebar-menu .nav-item:last-child {
+	border-bottom: 1px solid #d3d3d3;
+}
+.page-sidebar-menu .nav-item.active {
+	background:#dee6ee url(../img/common/bu/bu_nav_item.png) no-repeat 90% 50%;
+}
+.page-sidebar-menu .nav-item a.nav-link {
+	display: block;
+	padding: 20px 34px;
+}
+/* 왼쪽메뉴 끝 */
+/* 왼쪽배너 시작 */
+.page-banner-wrapper {
+
+}
+.page-banner-wrapper .banner-item {
+	position: relative;
+	height: 164px;
+	border: 1px solid #d3d3d3;
+	border-top: 0px;
+}
+.page-banner-wrapper .banner-tel {
+	position: absolute;
+	top: 96px;
+	width: 100%;
+	font-size: 20px;
+	font-weight: bold;
+	color: #374970;
+	background: url(../img/common/bg/bg_banner_tel.png) no-repeat 22px 50%;
+	padding: 0px 0px 0px 68px;
+}
+.page-banner-wrapper .banner-title {
+	position: absolute;
+	top: 20px;
+	width: 100%;
+	font-size: 18px;
+	font-weight: bold;
+	background: url(../img/common/bg/bg_banner_title_01.png) no-repeat 90% 50%;
+	padding: 10px 24px;
+}
+.page-banner-wrapper .banner-item.banner-item-01 .point-color {
+	color:#0081ce;
+}
+.page-banner-wrapper .banner-item.banner-item-02 .point-color {
+	color:#207167;
+}
+.page-banner-wrapper .banner-item.banner-item-02 .banner-title {
+	background: url(../img/common/bg/bg_banner_title_02.png) no-repeat 90% 50%;
+}
+/* 왼쪽배너 끝 */
+
+/* 페이지설명 시작 */
+.page-explanation {
+	background: #f9f9f9 url(../img/common/bg/bg_page_explanation.png) no-repeat 55px 50%;
+	display: table;
+	width: 100%;
+	min-height: 110px;
+	border: 1px solid #e9e9e9;
+	border-radius: 5px;
+	padding: 30px;
+}
+.page-explanation .page-explanation-inner {
+	display: table-row;
+	height: 100%;
+}
+.page-explanation-text {
+	display: table-cell;
+	padding-left: 150px;
+	font-size: 16px;
+	vertical-align: middle;
+}
+.page-explanation.page-explanation-sm {
+	padding: 4px;
+	min-height: 40px;
+	background-size: 28px;
+	background-position: 15px 50%;
+}
+.page-explanation.page-explanation-sm .page-explanation-text {
+	padding-left: 50px;
+}
+.page-summary {
+	background: #f9f9f9;
+	border: 1px solid #e9e9e9;
+	border-radius: 5px;
+	padding: 30px;
+}
+.page-summary .contents-row {
+	padding-bottom: 46px;
+}
+.page-summary .contents-row:last-child {
+	padding-bottom: 0px;
+}
+.page-summary-text {
+	font-size: 16px;
+}
+.page-summary-icon {
+	width: 95px;
+	height: 95px;
+	float: left;
+}
+.page-summary-icon.summary-icon-01 {
+	background: url(../img/common/bg/bg_summary_icon_01.png) no-repeat 50% 50%;
+}
+.page-summary-icon.summary-icon-02 {
+	background: url(../img/common/bg/bg_summary_icon_02.png) no-repeat 50% 50%;
+}
+.page-summary-icon.summary-icon-03 {
+	background: url(../img/common/bg/bg_summary_icon_03.png) no-repeat 50% 50%;
+}
+.page-summary-icon + .page-summary-text {
+	width: 842px;
+	margin-left: 115px;
+}
+.summary-title-1depth {
+	font-size: 26px;
+	font-weight: bold;
+	color: #337ac1;
+	padding-bottom: 20px;
+}
+/* 페이지설명 끝 */
+
+/* 넘버형태 내용 스타일 시작 */
+.numberic-contents {
+	padding-top: 60px;
+}
+.numberic-contents .contents-row {
+	padding-bottom: 60px;
+}
+.numberic-contents .contents-row:last-child {
+	padding-bottom: 0px;
+}
+.numberic-contents-text {
+	font-size: 16px;
+}
+.numberic-contents-num {
+	width: 100px;
+	height: 100px;
+	line-height: 82px;
+	font-size: 100px;
+	color: #08b3e3;
+	float: left;
+}
+.numberic-contents-num + .numberic-contents-text {
+	width: 822px;
+	margin-left: 135px;
+}
+.numberic-contents-title {
+	font-size: 24px;
+	font-weight: bold;
+	color: #020202;
+	padding-bottom: 20px;
+}
+/* 넘버형태 내용 스타일 끝 */
+
+/* 내용 속 부속품 시작 */
+.list-2depth-title {
+	float: left;
+	display: table-cell;
+}
+.list-2depth-title-text {
+	background-color: #dee3e7;
+	padding: 0px 15px;
+	margin-right: 10px;
+	border-radius: 50px;
+	display: block;
+}
+.list-2depth-title + .list-2depth-ul {
+	display: table-cell;
+}
+.object-label {
+	background-color: #dee3e7;
+	padding: 0px 15px;
+	margin-right: 10px;
+	border-radius: 50px;
+	display: block;
+	margin-top: 10px;
+	width: 200px;
+	margin: auto;
+}
+.list-2depth-title-text.bg-sky-blue,
+.object-label.bg-sky-blue {
+	background-color: #08b3e3;
+	color: #fff;
+}
+/* 내용 속 부속품 끝 */
+
+/* 개요 시작 */
+.summary-group {
+	padding-top: 64px;
+}
+.summary-group .summary-item {
+	position: relative;
+	display: table-cell;
+	padding: 0px 25px 0px 25px;
+	width: 33.3333%
+}
+.summary-group .summary-item::after {
+	content: "";
+	position: absolute;
+	top: 50%;
+	right: -12px;
+	margin-top: -12px;
+	width: 24px;
+	height: 24px;
+	background: url(../img/common/bu/bu_plus_large.png) no-repeat 50% 50%;
+}
+.summary-group .summary-item:last-child::after {
+	display: none;
+}
+.summary-group .summary-item .summary-item-title {
+	position: absolute;
+	top: -64px;
+	left: 50%;
+	width: 125px;
+	height: 125px;
+	margin-left: -64px;
+	font-size: 0px;
+	z-index: 1;
+}
+.summary-group .summary-item .summary-item-title.item-title-01 {
+	background: url(../img/common/bg/bg_summary_img_01.png) no-repeat 50% 50%;
+}
+.summary-group .summary-item .summary-item-title.item-title-02 {
+	background: url(../img/common/bg/bg_summary_img_02.png) no-repeat 50% 50%;
+}
+.summary-group .summary-item .summary-item-title.item-title-03 {
+	background: url(../img/common/bg/bg_summary_img_03.png) no-repeat 50% 50%;
+}
+.summary-group .summary-item ul.content-ul-list {
+	padding: 80px 26px 26px 26px;
+	background-color: #fbfbfb;
+	border-radius: 5px;
+}
+.summary-group .summary-item ul.content-ul-list li {
+	padding-bottom: 25px;
+}
+/* 개요 끝 */
+/* 오시는길 시작 */
+.road-map-list > li {
+	display: table;
+	padding: 20px 0px;
+	border-bottom: 1px solid #d3d3d3;
+}
+.road-map-list > li:last-child {
+	border-bottom: 0px;
+}
+.road-map-list .road-map-title {
+	width: 160px;
+	float: left;
+	display: block;
+	color: #08b3e3;
+	font-size: 18px;
+	font-weight: bold;
+	padding-left: 45px;
+	line-height: 32px;
+}
+.road-map-list .road-map-title.map-title-car {
+	background: url(../img/common/icon/ico_map_title_car.png) no-repeat 0px 50%;
+}
+.road-map-list .road-map-title.map-title-subway {
+	background: url(../img/common/icon/ico_map_title_subway.png) no-repeat 0px 50%;
+}
+.road-map-list .road-map-title.map-title-bus {
+	background: url(../img/common/icon/ico_map_title_bus.png) no-repeat 0px 50%;
+}
+.road-map-list > li > .content-ul-list {
+	float: left;
+}
+/* 오시는길 끝 */
+/* 활용지침 시작 */
+.usage-guidelines-box {
+	position: relative;
+	border: 3px solid #08b3e3;
+	padding: 40px;
+}
+.usage-guidelines-box [class^=pattern-] {
+	position: absolute;
+	display: block;
+	width: 30px;
+	height: 30px;
+}
+.usage-guidelines-box .pattern-top-L {
+	top: 12px;
+	left: 12px;
+	background: url(../img/common/bg/bg_pattern_top_L.png) no-repeat 50% 50%;
+}
+.usage-guidelines-box .pattern-top-R {
+	top: 12px;
+	right: 12px;
+	background: url(../img/common/bg/bg_pattern_top_R.png) no-repeat 50% 50%;
+}
+.usage-guidelines-box .pattern-bottom-L {
+	bottom: 12px;
+	left: 12px;
+	background: url(../img/common/bg/bg_pattern_bottom_L.png) no-repeat 50% 50%;
+}
+.usage-guidelines-box .pattern-bottom-R {
+	bottom: 12px;
+	right: 12px;
+	background: url(../img/common/bg/bg_pattern_bottom_R.png) no-repeat 50% 50%;
+}
+.provision-box {
+	background-color: #e8e8e8;
+	border-radius: 40px;
+	text-align: center;
+	padding: 6px 0px;
+	font-weight: bold;
+}
+.law-download {
+	position: relative;
+	display: table;
+	width: 100%;
+	padding: 18px 28px;
+	line-height: 20px;
+	cursor: pointer;
+}
+.law-download::after {
+	content: "";
+	position: absolute;
+	right: 28px;
+	top: 50%;
+	width: 30px;
+	height: 30px;
+	margin-top: -15px;
+	/* background: url(../img/common/icon/ico_btn_download.png) no-repeat 50% 50%; */
+}
+.law-download-inner {
+	display: table;
+	height: 100%;
+}
+.law-download-text {
+	display: table-cell;
+	vertical-align: middle;
+}
+/* 활용지침 끝 */
+/* FAQ 시작 */
+.faq-f {
+	position: relative;
+	color: #08b3e3;
+	font-weight: bold;
+	font-size: 18px;
+	margin-top: 50px;
+	padding: 10px 40px 20px 80px;
+	background: url(../img/common/bg/bg_faq_f.png) no-repeat 0 0;
+}
+.faq-f:first-child {
+	margin-top: 0px;
+}
+.faq-f span {
+	position: relative;
+	display: inline-block;
+	background-color: #fff;
+	padding-right: 10px;
+	z-index: 12;
+}
+.faq-f::after {
+	content: "";
+	position: absolute;
+	top: 21px;
+	right: 0px;
+	display: block;
+	background-color: #b5bfc8;
+	width: 940px;
+	height: 2px;
+}
+.faq-f + .contents-panel,
+.contents-panel.faq-q-panel {
+	padding: 25px;
+}
+ul.faq-q > li {
+	padding-left: 80px;
+	padding-bottom: 2px;
+	min-height: 42px;
+	background: url(../img/common/bg/bg_faq_q.png) no-repeat 0 0;
+}
+ul.faq-q > li textarea {
+	margin: 0px;
+}
+/* FAQ 끝 */
+/* 약관 시작 */
+.terms-panel {
+	height:200px;
+	background:#eeeeee;
+	overflow-y: scroll;
+	padding:10px 25px 10px 25px;
+}
+.terms-question {
+	display: block;
+	margin-top: 20px;
+	margin-bottom: 5px;
+}
+/* 약관 끝 */
+/* 로그인 step 시작 */
+.login-page .step-bar {
+	background-color: #4f5961;
+	width: 100%;
+	height: 50px;
+	border-radius: 5px;
+	overflow: hidden;
+	margin-bottom: 30px;
+}
+.login-page .step-ul {
+	display: flex;
+	display: -webkit-box;
+	display: -ms-flexbox;
+}
+.login-page .step-li {
+	position: relative;
+	color: #fff;
+	text-align: center;
+	line-height: 50px;
+	width: 0;
+	flex-grow: 1;
+	-webkit-box-flex: 1;
+	-ms-flex: 1;
+}
+.login-page .step-li::after {
+	content: "";
+	position: absolute;
+	right: -20px;
+	width: 20px;
+	height: 50px;
+	background: url(../img/common/bu/bu_step.png) no-repeat right 50%;
+	z-index: 1;
+}
+.login-page .step-li:last-child::after {
+	background: none;
+}
+.login-page .step-li.active {
+	background-color: #1382de;
+}
+.login-page .step-li.active::after {
+	background: url(../img/common/bu/bu_step_active.png) no-repeat right 50%;
+}
+/* 로그인 step 끝 */
+/* 지반정보 지역별 현황 시작 */
+.map-contents {
+
+}
+.map-value {
+	position: absolute;
+	width: 116px;
+	height: 20px;
+	line-height: 20px;
+	text-align: center;
+	z-index: 1;
+}
+/* 지반정보 지역별 현황 끝 */
+
+.map-legend {
+	text-align: right;
+	margin-bottom: 10px;
+}
+.map-legend-box {
+	border: 1px solid #d5d5d5;
+	display: inline-block;
+	padding: 4px 10px;
+}
+.map-legend-group {
+	display: block;
+	margin-right: 14px;
+	float: left;
+}
+.map-legend-group:last-child {
+	margin-right: 0px;
+}
+.map-legend-icon {
+	width: 20px;
+	height: 20px;
+	background-color: #000;
+	display: block;
+	float: left;
+	margin-right: 6px;
+}
+.map-legend-icon.icon-red {
+	background-color: red;
+}
+.map-legend-text {
+	display: block;
+	float: left;
+	line-height: 20px;
+}
+
+
+/* 기존 팝업 시작 */
+
+/* 기존 팝업 끝 */
+
+/* ====================================== */
+// 	서브 레이아웃 끝
+/* ====================================== */
+
+/* ====================================== */
+// 	익스플로어 레이아웃 시작
+/* ====================================== */
+.ie .pace {
+	display: none !important;
+}
+.ie .wow {
+	animation-name: none !important;
+}
+.ie .animated {
+	animation-duration: 0s !important;
+	animation-fill-mode: none !important;
+}
+.ie .parallax {
+	transition-timing-function: inherit !important;
+	-ms-transition-timing-function: inherit !important;
+	-moz-transition-timing-function: inherit !important;
+	-webkit-transition-timing-function: inherit !important;
+	-o-transition-timing-function: inherit !important;
+	transition-duration: .1s !important;
+	-ms-transition-duration: .1s !important;
+	-moz-transition-duration: .1s !important;
+	-webkit-transition-duration: .1s !important;
+	-o-transition-duration: .1s !important;
+}
+/* ====================================== */
+// 	익스플로어 레이아웃 끝
+/* ====================================== */
+
+
+
+/* ====================================== */
+// 	팝업 시작
+/* ====================================== */
+
+.k-window {
+
+}
+.k-window-content .k-button::before {
+    opacity: 1;
+}
+.k-window-actions .k-button::before {
+    opacity: 0;
+}
+.k-window-content {
+    padding: 0px;
+    overflow: hidden;
+}
+.k-window.k-state-focused {
+    border: 2px solid #0095da;
+}
+.k-window.k-state-focused .k-window-titlebar {
+    color: #fff;
+    background-color: #0095da;
+    cursor: move;
+}
+.k-window-title {
+    cursor: move;
+}
+.k-window-titlebar {
+    border-radius: 0;
+}
+.k-edit-form-container {
+    width: auto;
+}
+.k-popup-edit-form {
+    /* width: 100%; */
+    height: 100%;
+    /* padding: 12px; */
+    overflow: auto;
+}
+.kc-popup-btn-group .k-popup-edit-form {
+    margin-bottom: 56px;
+}
+.k-popup-edit-form.button-group-display {
+    height: calc(100% - 56px);
+}
+.k-edit-buttons {
+    position: absolute;
+    bottom: 0px;
+    left: 0px;
+    right: 0px;
+    width: 100%;
+    padding: 10px;
+}
+.k-edit-buttons .button-group {
+    float: right;
+}
+.k-window-titlebar .k-window-actions {
+	top: 7px !important;
+}
+.k-window-titleless {
+	padding-top: 0px !important;
+}
+.popup-content-wrapper {
+	padding: 20px;
+}
+/* ====================================== */
+// 	팝업 끝
+/* ====================================== */
+
+
+/* ====================================== */
+// 	Icon
+/* ====================================== */
+.icon {
+	position: relative;
+    display: inline-block;
+    line-height: inherit;
+    border-radius: 5px;
+    padding: 0px;
+    width: 22px;
+    height: 22px;
+	font-weight: normal;
+	font-size: 0px;
+	vertical-align: middle;
+}
+.icon::after {
+	content: "";
+    position: absolute;
+	top: 0px;
+	left: 0px;
+    height: 22px;
+    width: 22px;
+}
+.icon.icon-new {width: 36px; height: 16px;}
+.icon.icon-new::after {width: 28px; top: -2px; left:4px; background: url(../img/common/icon/icon_ico_new.png) no-repeat 50% 50%;}
+.icon.icon-download::after {background: url(../img/common/icon/ico_btn_disk_dark.png) no-repeat 50% 50%;}
+.icon.icon-upload::after {background: url(../img/common/icon/ico_btn_upload_dark.png) no-repeat 50% 50%;}
+.icon.icon-insertion::after {background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 50% 50%;}
+.icon.icon-delete::after {background: url(../img/common/icon/ico_btn_delete_s.png) no-repeat 50% 50%;}
+.icon.icon-link::after {background: url(../img/common/icon/ico_btn_link.png) no-repeat 50% 50%;}
+.icon.icon-attach::after {background: url(../img/common/icon/ico_btn_attach.png) no-repeat 50% 50%;}
+.icon.icon-reply::after {background: url(../img/common/icon/ico_btn_reply_s.png) no-repeat 50% 50%;}
+.icon.icon-more::after {background: url(../img/common/icon/icon_nav_link_arrow_right.png) no-repeat 50% 50%;}
+
+.link-window {
+	padding: 2px 24px 2px 4px;
+    margin-right: 4px;
+    border-radius: 5px;
+    background: #efefef url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
+}
+.link-site {
+	padding: 2px 24px 2px 4px;
+    margin-right: 4px;
+    border-radius: 5px;
+    background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
+}
+.link-go {
+	padding: 2px 24px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/ico_btn_insertion_dark.png) no-repeat 100% 50%;
+}
+.link-download {
+	padding: 2px 24px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/ico_btn_disk_dark.png) no-repeat 100% 50%;
+}
+.link-upload {
+	padding: 2px 24px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/ico_btn_upload_dark.png) no-repeat 100% 50%;
+}
+.link-delete {
+	padding: 2px 24px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/ico_btn_delete_s.png) no-repeat 100% 50%;
+}
+.link-icon {
+	padding: 2px 30px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/ico_btn_link.png) no-repeat 100% 50%;
+}
+.link-attach {
+	padding: 2px 30px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/ico_btn_attach.png) no-repeat 100% 50%;
+}
+.link-more {
+	padding: 2px 20px 2px 0px;
+    margin-right: 4px;
+    background: url(../img/common/icon/icon_nav_link_arrow_right.png) no-repeat 100% 50%;
+}
+.link-reply {
+	padding: 2px 0px 2px 30px;
+    margin-left: 4px;
+    background: url(../img/common/icon/ico_btn_reply_s.png) no-repeat 0 50%;
+}
+
+.rating-star {
+	margin-bottom: 20px;
+}
+.rating-star span {
+	position: relative;
+    display: inline-block;
+    line-height: inherit;
+    border-radius: 5px;
+    padding: 0px;
+	margin-right: 10px;
+    width: 40px;
+    height: 40px;
+	font-weight: normal;
+	font-size: 0px;
+	vertical-align: middle;
+}
+.rating-star span::after {
+	content: "";
+    position: absolute;
+	top: 0px;
+	left: 0px;
+    height: 40px;
+    width: 40px;
+	background: url(../img/common/icon/rating_star.png) no-repeat 0 50%;
+}
+.rating-star span.star-off::after {
+	background: url(../img/common/icon/rating_star_off.png) no-repeat 0 50%;
+}
+
+/* ====================================== */
+// 	메인 로그인 팝업 시작
+/* ====================================== */
+
+.login-popup-wrapper {
+    .mfp-content {    
+        &.login-popup-content {
+            display: table-cell;
+            vertical-align: middle;
+        }
+        .login-popup {
+            width: 610px;
+            height: 347px;
+            margin: 0px auto;
+            padding: 40px;
+            background-color: #fff;
+            border: 2px solid #000000;
+            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+        
+
+            .contents-title {
+                font-size: 36px;
+                margin-bottom: 10px;
+                color: #161616;
+                text-align: center;
+                font-weight: bold;
+            }
+            .t-center {
+                .account-type-wrapper {
+                    &>p {
+                        text-align: center;
+                        width: 100%;
+                        display: block;
+                        font-size: 18px;
+                        margin-bottom: 30px;
+                        color: #161616;            
+                        font-weight: normal;
+                    }
+                    &>ul {
+                        width: 100%;
+                        display: inline-block;
+                        &>li {
+                            width: 150px;
+                            height: 150px;
+                            display: inline-block;
+                            border: 0px solid #222222;
+                            font-size: 40px;
+                            cursor: pointer;
+                            background: #FFFFFF;
+                            box-shadow: 0px 8px 24px rgba(0, 0, 0, 0.15);
+                            border-radius: 20px;
+                            padding: 30px;
+                            
+                            &:hover {
+                                background: #3378C1;
+                                color: #ffffff;
+                                &>div {
+                                    &>div.icons {
+                                        &.individual-user {
+                                            background-image: url("/com/img/main/signin/individual_user_white.svg?v=20240607_1153");
+                                        }
+                                        &.corporate-user {
+                                            background-image: url("/com/img/main/signin/corporate_user_white.svg?v=20240607_1153");
+                                        }
+                                        &.ordering-organization {
+                                            background-image: url("/com/img/main/signin/ordering_organization_white.svg?v=20240607_1153");
+                                        }
+                                    }
+                                }
+                            }
+                            &.center {
+                                margin:0px 30px;
+                            }
+                            
+                            &>div {
+                                text-align: center;
+                                &>div.icons {
+                                    display: inline-block;
+                                    width: 75px;
+                                    height: 75px;
+                                    -moz-background-size: cover;
+                                    -webkit-background-size: cover;
+                                    -o-background-size: cover;
+                                    background-size: cover;
+                                    background-repeat: no-repeat;
+                                    background-position: center;
+                                    &.individual-user {                                    
+                                        background-image: url("/com/img/main/signin/individual_user.svg?v=20240607_1153");
+                                    }
+                                    &.corporate-user {                                    
+                                        background-image: url("/com/img/main/signin/corporate_user.svg?v=20240607_1153");
+                                    }
+                                    &.ordering-organization {                                    
+                                        background-image: url("/com/img/main/signin/ordering_organization.svg?v=20240607_1153");
+                                    }
+                                }
+                                &>div {
+                                    &>span {
+                                        font-size: 16px;
+                                        font-weight: normal;
+                                    }
+                                }
+                            }
+                            
+                            
+                        }
+                    }    
+                }
+                .login-radio {
+                    line-height: 50px;
+                    border-top: 1px solid #000000;
+                    border-bottom: 1px solid #000000;
+                }
+            }
+            .signin-wrapper {
+                &>p {
+                    text-align: center;
+                    width: 100%;
+                    display: block;
+                    font-size: 18px;
+                    margin-bottom: 30px;
+                    color: #161616;            
+                    font-weight: normal;
+                }
+                &>.login-form-row {
+                    display: inline-block;
+                    &>.id-password-wrapper {
+                        display: inline-block;
+                        width: 330px;
+                        height: 106px;
+                        padding: 0px;
+                        &>input {
+                            height: 48px;
+                            margin: 0px;
+                            margin-bottom: 10px;
+                        }
+                    }
+                    &>.signin-button-wrapper {
+                        display: inline-block;
+                        width: 139px;
+                        height: 106px;
+                        padding: 0px;
+                        &>button {
+                            display: inline-block;
+                            width: 100%;
+                            height: 106px;
+                            &.mfp-popup-close {
+                                display: none;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+/* ====================================== */
+// 	메인 로그인 팝업 끝
+/* ====================================== */
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/.bin/sass b/src/main/webapp/com/css/sass/node_modules/.bin/sass
new file mode 100644
index 00000000..44ba6e9e
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/.bin/sass
@@ -0,0 +1,12 @@
+#!/bin/sh
+basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
+
+case `uname` in
+    *CYGWIN*|*MINGW*|*MSYS*) basedir=`cygpath -w "$basedir"`;;
+esac
+
+if [ -x "$basedir/node" ]; then
+  exec "$basedir/node"  "$basedir/../sass/sass.js" "$@"
+else 
+  exec node  "$basedir/../sass/sass.js" "$@"
+fi
diff --git a/src/main/webapp/com/css/sass/node_modules/.bin/sass.cmd b/src/main/webapp/com/css/sass/node_modules/.bin/sass.cmd
new file mode 100644
index 00000000..0cf95f64
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/.bin/sass.cmd
@@ -0,0 +1,17 @@
+@ECHO off
+GOTO start
+:find_dp0
+SET dp0=%~dp0
+EXIT /b
+:start
+SETLOCAL
+CALL :find_dp0
+
+IF EXIST "%dp0%\node.exe" (
+  SET "_prog=%dp0%\node.exe"
+) ELSE (
+  SET "_prog=node"
+  SET PATHEXT=%PATHEXT:;.JS;=;%
+)
+
+endLocal & goto #_undefined_# 2>NUL || title %COMSPEC% & "%_prog%"  "%dp0%\..\sass\sass.js" %*
diff --git a/src/main/webapp/com/css/sass/node_modules/.bin/sass.ps1 b/src/main/webapp/com/css/sass/node_modules/.bin/sass.ps1
new file mode 100644
index 00000000..715ffd5a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/.bin/sass.ps1
@@ -0,0 +1,28 @@
+#!/usr/bin/env pwsh
+$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
+
+$exe=""
+if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
+}
+$ret=0
+if (Test-Path "$basedir/node$exe") {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "$basedir/node$exe"  "$basedir/../sass/sass.js" $args
+  } else {
+    & "$basedir/node$exe"  "$basedir/../sass/sass.js" $args
+  }
+  $ret=$LASTEXITCODE
+} else {
+  # Support pipeline input
+  if ($MyInvocation.ExpectingInput) {
+    $input | & "node$exe"  "$basedir/../sass/sass.js" $args
+  } else {
+    & "node$exe"  "$basedir/../sass/sass.js" $args
+  }
+  $ret=$LASTEXITCODE
+}
+exit $ret
diff --git a/src/main/webapp/com/css/sass/node_modules/.package-lock.json b/src/main/webapp/com/css/sass/node_modules/.package-lock.json
new file mode 100644
index 00000000..32ba8c74
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/.package-lock.json
@@ -0,0 +1,195 @@
+{
+  "name": "sass",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "node_modules/anymatch": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
+      "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==",
+      "dependencies": {
+        "normalize-path": "^3.0.0",
+        "picomatch": "^2.0.4"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/binary-extensions": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
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+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/braces": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
+      "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
+      "dependencies": {
+        "fill-range": "^7.1.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/chokidar": {
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
+      "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==",
+      "dependencies": {
+        "anymatch": "~3.1.2",
+        "braces": "~3.0.2",
+        "glob-parent": "~5.1.2",
+        "is-binary-path": "~2.1.0",
+        "is-glob": "~4.0.1",
+        "normalize-path": "~3.0.0",
+        "readdirp": "~3.6.0"
+      },
+      "engines": {
+        "node": ">= 8.10.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.2"
+      }
+    },
+    "node_modules/fill-range": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
+      "dependencies": {
+        "to-regex-range": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/glob-parent": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
+      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
+      "dependencies": {
+        "is-glob": "^4.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/immutable": {
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.3.6.tgz",
+      "integrity": "sha512-Ju0+lEMyzMVZarkTn/gqRpdqd5dOPaz1mCZ0SH3JV6iFw81PldE/PEB1hWVEA288HPt4WXW8O7AWxB10M+03QQ=="
+    },
+    "node_modules/is-binary-path": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
+      "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
+      "dependencies": {
+        "binary-extensions": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/is-extglob": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
+      "integrity": "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/is-glob": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz",
+      "integrity": "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==",
+      "dependencies": {
+        "is-extglob": "^2.1.1"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/is-number": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
+      "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==",
+      "engines": {
+        "node": ">=0.12.0"
+      }
+    },
+    "node_modules/normalize-path": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
+      "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/picomatch": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
+      "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
+      "engines": {
+        "node": ">=8.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/jonschlinkert"
+      }
+    },
+    "node_modules/readdirp": {
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
+      "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==",
+      "dependencies": {
+        "picomatch": "^2.2.1"
+      },
+      "engines": {
+        "node": ">=8.10.0"
+      }
+    },
+    "node_modules/sass": {
+      "version": "1.77.4",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.77.4.tgz",
+      "integrity": "sha512-vcF3Ckow6g939GMA4PeU7b2K/9FALXk2KF9J87txdHzXbUF9XRQRwSxcAs/fGaTnJeBFd7UoV22j3lzMLdM0Pw==",
+      "dependencies": {
+        "chokidar": ">=3.0.0 <4.0.0",
+        "immutable": "^4.0.0",
+        "source-map-js": ">=0.6.2 <2.0.0"
+      },
+      "bin": {
+        "sass": "sass.js"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/source-map-js": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.0.tgz",
+      "integrity": "sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "dependencies": {
+        "is-number": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=8.0"
+      }
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/anymatch/LICENSE b/src/main/webapp/com/css/sass/node_modules/anymatch/LICENSE
new file mode 100644
index 00000000..491766ca
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/anymatch/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) 2019 Elan Shanker, Paul Miller (https://paulmillr.com)
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/anymatch/README.md b/src/main/webapp/com/css/sass/node_modules/anymatch/README.md
new file mode 100644
index 00000000..1dd67f53
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/anymatch/README.md
@@ -0,0 +1,87 @@
+anymatch [![Build Status](https://travis-ci.org/micromatch/anymatch.svg?branch=master)](https://travis-ci.org/micromatch/anymatch) [![Coverage Status](https://img.shields.io/coveralls/micromatch/anymatch.svg?branch=master)](https://coveralls.io/r/micromatch/anymatch?branch=master)
+======
+Javascript module to match a string against a regular expression, glob, string,
+or function that takes the string as an argument and returns a truthy or falsy
+value. The matcher can also be an array of any or all of these. Useful for
+allowing a very flexible user-defined config to define things like file paths.
+
+__Note: This module has Bash-parity, please be aware that Windows-style backslashes are not supported as separators. See https://github.com/micromatch/micromatch#backslashes for more information.__
+
+
+Usage
+-----
+```sh
+npm install anymatch
+```
+
+#### anymatch(matchers, testString, [returnIndex], [options])
+* __matchers__: (_Array|String|RegExp|Function_)
+String to be directly matched, string with glob patterns, regular expression
+test, function that takes the testString as an argument and returns a truthy
+value if it should be matched, or an array of any number and mix of these types.
+* __testString__: (_String|Array_) The string to test against the matchers. If
+passed as an array, the first element of the array will be used as the
+`testString` for non-function matchers, while the entire array will be applied
+as the arguments for function matchers.
+* __options__: (_Object_ [optional]_) Any of the [picomatch](https://github.com/micromatch/picomatch#options) options.
+    * __returnIndex__: (_Boolean [optional]_) If true, return the array index of
+the first matcher that that testString matched, or -1 if no match, instead of a
+boolean result.
+
+```js
+const anymatch = require('anymatch');
+
+const matchers = [ 'path/to/file.js', 'path/anyjs/**/*.js', /foo.js$/, string => string.includes('bar') && string.length > 10 ] ;
+
+anymatch(matchers, 'path/to/file.js'); // true
+anymatch(matchers, 'path/anyjs/baz.js'); // true
+anymatch(matchers, 'path/to/foo.js'); // true
+anymatch(matchers, 'path/to/bar.js'); // true
+anymatch(matchers, 'bar.js'); // false
+
+// returnIndex = true
+anymatch(matchers, 'foo.js', {returnIndex: true}); // 2
+anymatch(matchers, 'path/anyjs/foo.js', {returnIndex: true}); // 1
+
+// any picomatc
+
+// using globs to match directories and their children
+anymatch('node_modules', 'node_modules'); // true
+anymatch('node_modules', 'node_modules/somelib/index.js'); // false
+anymatch('node_modules/**', 'node_modules/somelib/index.js'); // true
+anymatch('node_modules/**', '/absolute/path/to/node_modules/somelib/index.js'); // false
+anymatch('**/node_modules/**', '/absolute/path/to/node_modules/somelib/index.js'); // true
+
+const matcher = anymatch(matchers);
+['foo.js', 'bar.js'].filter(matcher);  // [ 'foo.js' ]
+anymatch master* ❯
+
+```
+
+#### anymatch(matchers)
+You can also pass in only your matcher(s) to get a curried function that has
+already been bound to the provided matching criteria. This can be used as an
+`Array#filter` callback.
+
+```js
+var matcher = anymatch(matchers);
+
+matcher('path/to/file.js'); // true
+matcher('path/anyjs/baz.js', true); // 1
+
+['foo.js', 'bar.js'].filter(matcher); // ['foo.js']
+```
+
+Changelog
+----------
+[See release notes page on GitHub](https://github.com/micromatch/anymatch/releases)
+
+- **v3.0:** Removed `startIndex` and `endIndex` arguments. Node 8.x-only.
+- **v2.0:** [micromatch](https://github.com/jonschlinkert/micromatch) moves away from minimatch-parity and inline with Bash. This includes handling backslashes differently (see https://github.com/micromatch/micromatch#backslashes for more information).
+- **v1.2:** anymatch uses [micromatch](https://github.com/jonschlinkert/micromatch)
+for glob pattern matching. Issues with glob pattern matching should be
+reported directly to the [micromatch issue tracker](https://github.com/jonschlinkert/micromatch/issues).
+
+License
+-------
+[ISC](https://raw.github.com/micromatch/anymatch/master/LICENSE)
diff --git a/src/main/webapp/com/css/sass/node_modules/anymatch/index.d.ts b/src/main/webapp/com/css/sass/node_modules/anymatch/index.d.ts
new file mode 100644
index 00000000..3ef7eaad
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/anymatch/index.d.ts
@@ -0,0 +1,20 @@
+type AnymatchFn = (testString: string) => boolean;
+type AnymatchPattern = string|RegExp|AnymatchFn;
+type AnymatchMatcher = AnymatchPattern|AnymatchPattern[]
+type AnymatchTester = {
+  (testString: string|any[], returnIndex: true): number;
+  (testString: string|any[]): boolean;
+}
+
+type PicomatchOptions = {dot: boolean};
+
+declare const anymatch: {
+  (matchers: AnymatchMatcher): AnymatchTester;
+  (matchers: AnymatchMatcher, testString: null, returnIndex: true | PicomatchOptions): AnymatchTester;
+  (matchers: AnymatchMatcher, testString: string|any[], returnIndex: true | PicomatchOptions): number;
+  (matchers: AnymatchMatcher, testString: string|any[]): boolean;
+}
+
+export {AnymatchMatcher as Matcher}
+export {AnymatchTester as Tester}
+export default anymatch
diff --git a/src/main/webapp/com/css/sass/node_modules/anymatch/index.js b/src/main/webapp/com/css/sass/node_modules/anymatch/index.js
new file mode 100644
index 00000000..8eb73e9c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/anymatch/index.js
@@ -0,0 +1,104 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", { value: true });
+
+const picomatch = require('picomatch');
+const normalizePath = require('normalize-path');
+
+/**
+ * @typedef {(testString: string) => boolean} AnymatchFn
+ * @typedef {string|RegExp|AnymatchFn} AnymatchPattern
+ * @typedef {AnymatchPattern|AnymatchPattern[]} AnymatchMatcher
+ */
+const BANG = '!';
+const DEFAULT_OPTIONS = {returnIndex: false};
+const arrify = (item) => Array.isArray(item) ? item : [item];
+
+/**
+ * @param {AnymatchPattern} matcher
+ * @param {object} options
+ * @returns {AnymatchFn}
+ */
+const createPattern = (matcher, options) => {
+  if (typeof matcher === 'function') {
+    return matcher;
+  }
+  if (typeof matcher === 'string') {
+    const glob = picomatch(matcher, options);
+    return (string) => matcher === string || glob(string);
+  }
+  if (matcher instanceof RegExp) {
+    return (string) => matcher.test(string);
+  }
+  return (string) => false;
+};
+
+/**
+ * @param {Array<Function>} patterns
+ * @param {Array<Function>} negPatterns
+ * @param {String|Array} args
+ * @param {Boolean} returnIndex
+ * @returns {boolean|number}
+ */
+const matchPatterns = (patterns, negPatterns, args, returnIndex) => {
+  const isList = Array.isArray(args);
+  const _path = isList ? args[0] : args;
+  if (!isList && typeof _path !== 'string') {
+    throw new TypeError('anymatch: second argument must be a string: got ' +
+      Object.prototype.toString.call(_path))
+  }
+  const path = normalizePath(_path, false);
+
+  for (let index = 0; index < negPatterns.length; index++) {
+    const nglob = negPatterns[index];
+    if (nglob(path)) {
+      return returnIndex ? -1 : false;
+    }
+  }
+
+  const applied = isList && [path].concat(args.slice(1));
+  for (let index = 0; index < patterns.length; index++) {
+    const pattern = patterns[index];
+    if (isList ? pattern(...applied) : pattern(path)) {
+      return returnIndex ? index : true;
+    }
+  }
+
+  return returnIndex ? -1 : false;
+};
+
+/**
+ * @param {AnymatchMatcher} matchers
+ * @param {Array|string} testString
+ * @param {object} options
+ * @returns {boolean|number|Function}
+ */
+const anymatch = (matchers, testString, options = DEFAULT_OPTIONS) => {
+  if (matchers == null) {
+    throw new TypeError('anymatch: specify first argument');
+  }
+  const opts = typeof options === 'boolean' ? {returnIndex: options} : options;
+  const returnIndex = opts.returnIndex || false;
+
+  // Early cache for matchers.
+  const mtchers = arrify(matchers);
+  const negatedGlobs = mtchers
+    .filter(item => typeof item === 'string' && item.charAt(0) === BANG)
+    .map(item => item.slice(1))
+    .map(item => picomatch(item, opts));
+  const patterns = mtchers
+    .filter(item => typeof item !== 'string' || (typeof item === 'string' && item.charAt(0) !== BANG))
+    .map(matcher => createPattern(matcher, opts));
+
+  if (testString == null) {
+    return (testString, ri = false) => {
+      const returnIndex = typeof ri === 'boolean' ? ri : false;
+      return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
+    }
+  }
+
+  return matchPatterns(patterns, negatedGlobs, testString, returnIndex);
+};
+
+anymatch.default = anymatch;
+module.exports = anymatch;
diff --git a/src/main/webapp/com/css/sass/node_modules/anymatch/package.json b/src/main/webapp/com/css/sass/node_modules/anymatch/package.json
new file mode 100644
index 00000000..2cb2307e
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/anymatch/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "anymatch",
+  "version": "3.1.3",
+  "description": "Matches strings against configurable strings, globs, regular expressions, and/or functions",
+  "files": [
+    "index.js",
+    "index.d.ts"
+  ],
+  "dependencies": {
+    "normalize-path": "^3.0.0",
+    "picomatch": "^2.0.4"
+  },
+  "author": {
+    "name": "Elan Shanker",
+    "url": "https://github.com/es128"
+  },
+  "license": "ISC",
+  "homepage": "https://github.com/micromatch/anymatch",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/micromatch/anymatch"
+  },
+  "keywords": [
+    "match",
+    "any",
+    "string",
+    "file",
+    "fs",
+    "list",
+    "glob",
+    "regex",
+    "regexp",
+    "regular",
+    "expression",
+    "function"
+  ],
+  "scripts": {
+    "test": "nyc mocha",
+    "mocha": "mocha"
+  },
+  "devDependencies": {
+    "mocha": "^6.1.3",
+    "nyc": "^14.0.0"
+  },
+  "engines": {
+    "node": ">= 8"
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/binary-extensions.json b/src/main/webapp/com/css/sass/node_modules/binary-extensions/binary-extensions.json
new file mode 100644
index 00000000..ac08048e
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/binary-extensions.json
@@ -0,0 +1,263 @@
+[
+	"3dm",
+	"3ds",
+	"3g2",
+	"3gp",
+	"7z",
+	"a",
+	"aac",
+	"adp",
+	"afdesign",
+	"afphoto",
+	"afpub",
+	"ai",
+	"aif",
+	"aiff",
+	"alz",
+	"ape",
+	"apk",
+	"appimage",
+	"ar",
+	"arj",
+	"asf",
+	"au",
+	"avi",
+	"bak",
+	"baml",
+	"bh",
+	"bin",
+	"bk",
+	"bmp",
+	"btif",
+	"bz2",
+	"bzip2",
+	"cab",
+	"caf",
+	"cgm",
+	"class",
+	"cmx",
+	"cpio",
+	"cr2",
+	"cur",
+	"dat",
+	"dcm",
+	"deb",
+	"dex",
+	"djvu",
+	"dll",
+	"dmg",
+	"dng",
+	"doc",
+	"docm",
+	"docx",
+	"dot",
+	"dotm",
+	"dra",
+	"DS_Store",
+	"dsk",
+	"dts",
+	"dtshd",
+	"dvb",
+	"dwg",
+	"dxf",
+	"ecelp4800",
+	"ecelp7470",
+	"ecelp9600",
+	"egg",
+	"eol",
+	"eot",
+	"epub",
+	"exe",
+	"f4v",
+	"fbs",
+	"fh",
+	"fla",
+	"flac",
+	"flatpak",
+	"fli",
+	"flv",
+	"fpx",
+	"fst",
+	"fvt",
+	"g3",
+	"gh",
+	"gif",
+	"graffle",
+	"gz",
+	"gzip",
+	"h261",
+	"h263",
+	"h264",
+	"icns",
+	"ico",
+	"ief",
+	"img",
+	"ipa",
+	"iso",
+	"jar",
+	"jpeg",
+	"jpg",
+	"jpgv",
+	"jpm",
+	"jxr",
+	"key",
+	"ktx",
+	"lha",
+	"lib",
+	"lvp",
+	"lz",
+	"lzh",
+	"lzma",
+	"lzo",
+	"m3u",
+	"m4a",
+	"m4v",
+	"mar",
+	"mdi",
+	"mht",
+	"mid",
+	"midi",
+	"mj2",
+	"mka",
+	"mkv",
+	"mmr",
+	"mng",
+	"mobi",
+	"mov",
+	"movie",
+	"mp3",
+	"mp4",
+	"mp4a",
+	"mpeg",
+	"mpg",
+	"mpga",
+	"mxu",
+	"nef",
+	"npx",
+	"numbers",
+	"nupkg",
+	"o",
+	"odp",
+	"ods",
+	"odt",
+	"oga",
+	"ogg",
+	"ogv",
+	"otf",
+	"ott",
+	"pages",
+	"pbm",
+	"pcx",
+	"pdb",
+	"pdf",
+	"pea",
+	"pgm",
+	"pic",
+	"png",
+	"pnm",
+	"pot",
+	"potm",
+	"potx",
+	"ppa",
+	"ppam",
+	"ppm",
+	"pps",
+	"ppsm",
+	"ppsx",
+	"ppt",
+	"pptm",
+	"pptx",
+	"psd",
+	"pya",
+	"pyc",
+	"pyo",
+	"pyv",
+	"qt",
+	"rar",
+	"ras",
+	"raw",
+	"resources",
+	"rgb",
+	"rip",
+	"rlc",
+	"rmf",
+	"rmvb",
+	"rpm",
+	"rtf",
+	"rz",
+	"s3m",
+	"s7z",
+	"scpt",
+	"sgi",
+	"shar",
+	"snap",
+	"sil",
+	"sketch",
+	"slk",
+	"smv",
+	"snk",
+	"so",
+	"stl",
+	"suo",
+	"sub",
+	"swf",
+	"tar",
+	"tbz",
+	"tbz2",
+	"tga",
+	"tgz",
+	"thmx",
+	"tif",
+	"tiff",
+	"tlz",
+	"ttc",
+	"ttf",
+	"txz",
+	"udf",
+	"uvh",
+	"uvi",
+	"uvm",
+	"uvp",
+	"uvs",
+	"uvu",
+	"viv",
+	"vob",
+	"war",
+	"wav",
+	"wax",
+	"wbmp",
+	"wdp",
+	"weba",
+	"webm",
+	"webp",
+	"whl",
+	"wim",
+	"wm",
+	"wma",
+	"wmv",
+	"wmx",
+	"woff",
+	"woff2",
+	"wrm",
+	"wvx",
+	"xbm",
+	"xif",
+	"xla",
+	"xlam",
+	"xls",
+	"xlsb",
+	"xlsm",
+	"xlsx",
+	"xlt",
+	"xltm",
+	"xltx",
+	"xm",
+	"xmind",
+	"xpi",
+	"xpm",
+	"xwd",
+	"xz",
+	"z",
+	"zip",
+	"zipx"
+]
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/binary-extensions.json.d.ts b/src/main/webapp/com/css/sass/node_modules/binary-extensions/binary-extensions.json.d.ts
new file mode 100644
index 00000000..94a248c2
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/binary-extensions.json.d.ts
@@ -0,0 +1,3 @@
+declare const binaryExtensionsJson: readonly string[];
+
+export = binaryExtensionsJson;
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/index.d.ts b/src/main/webapp/com/css/sass/node_modules/binary-extensions/index.d.ts
new file mode 100644
index 00000000..f469ac5f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/index.d.ts
@@ -0,0 +1,14 @@
+/**
+List of binary file extensions.
+
+@example
+```
+import binaryExtensions = require('binary-extensions');
+
+console.log(binaryExtensions);
+//=> ['3ds', '3g2', …]
+```
+*/
+declare const binaryExtensions: readonly string[];
+
+export = binaryExtensions;
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/index.js b/src/main/webapp/com/css/sass/node_modules/binary-extensions/index.js
new file mode 100644
index 00000000..d46e4688
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/index.js
@@ -0,0 +1 @@
+module.exports = require('./binary-extensions.json');
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/license b/src/main/webapp/com/css/sass/node_modules/binary-extensions/license
new file mode 100644
index 00000000..5493a1a6
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/license
@@ -0,0 +1,10 @@
+MIT License
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
+Copyright (c) Paul Miller (https://paulmillr.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/package.json b/src/main/webapp/com/css/sass/node_modules/binary-extensions/package.json
new file mode 100644
index 00000000..4710c339
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/package.json
@@ -0,0 +1,40 @@
+{
+	"name": "binary-extensions",
+	"version": "2.3.0",
+	"description": "List of binary file extensions",
+	"license": "MIT",
+	"repository": "sindresorhus/binary-extensions",
+	"funding": "https://github.com/sponsors/sindresorhus",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "https://sindresorhus.com"
+	},
+	"sideEffects": false,
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts",
+		"binary-extensions.json",
+		"binary-extensions.json.d.ts"
+	],
+	"keywords": [
+		"binary",
+		"extensions",
+		"extension",
+		"file",
+		"json",
+		"list",
+		"array"
+	],
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.2",
+		"xo": "^0.24.0"
+	}
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/binary-extensions/readme.md b/src/main/webapp/com/css/sass/node_modules/binary-extensions/readme.md
new file mode 100644
index 00000000..88519b3a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/binary-extensions/readme.md
@@ -0,0 +1,25 @@
+# binary-extensions
+
+> List of binary file extensions
+
+The list is just a [JSON file](binary-extensions.json) and can be used anywhere.
+
+## Install
+
+```sh
+npm install binary-extensions
+```
+
+## Usage
+
+```js
+const binaryExtensions = require('binary-extensions');
+
+console.log(binaryExtensions);
+//=> ['3ds', '3g2', …]
+```
+
+## Related
+
+- [is-binary-path](https://github.com/sindresorhus/is-binary-path) - Check if a filepath is a binary file
+- [text-extensions](https://github.com/sindresorhus/text-extensions) - List of text file extensions
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/LICENSE b/src/main/webapp/com/css/sass/node_modules/braces/LICENSE
new file mode 100644
index 00000000..9af4a67d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-present, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/README.md b/src/main/webapp/com/css/sass/node_modules/braces/README.md
new file mode 100644
index 00000000..f59dd604
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/README.md
@@ -0,0 +1,586 @@
+# braces [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W8YFZ425KND68) [![NPM version](https://img.shields.io/npm/v/braces.svg?style=flat)](https://www.npmjs.com/package/braces) [![NPM monthly downloads](https://img.shields.io/npm/dm/braces.svg?style=flat)](https://npmjs.org/package/braces) [![NPM total downloads](https://img.shields.io/npm/dt/braces.svg?style=flat)](https://npmjs.org/package/braces) [![Linux Build Status](https://img.shields.io/travis/micromatch/braces.svg?style=flat&label=Travis)](https://travis-ci.org/micromatch/braces)
+
+> Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.
+
+Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save braces
+```
+
+## v3.0.0 Released!!
+
+See the [changelog](CHANGELOG.md) for details.
+
+## Why use braces?
+
+Brace patterns make globs more powerful by adding the ability to match specific ranges and sequences of characters.
+
+- **Accurate** - complete support for the [Bash 4.3 Brace Expansion](www.gnu.org/software/bash/) specification (passes all of the Bash braces tests)
+- **[fast and performant](#benchmarks)** - Starts fast, runs fast and [scales well](#performance) as patterns increase in complexity.
+- **Organized code base** - The parser and compiler are easy to maintain and update when edge cases crop up.
+- **Well-tested** - Thousands of test assertions, and passes all of the Bash, minimatch, and [brace-expansion](https://github.com/juliangruber/brace-expansion) unit tests (as of the date this was written).
+- **Safer** - You shouldn't have to worry about users defining aggressive or malicious brace patterns that can break your application. Braces takes measures to prevent malicious regex that can be used for DDoS attacks (see [catastrophic backtracking](https://www.regular-expressions.info/catastrophic.html)).
+- [Supports lists](#lists) - (aka "sets") `a/{b,c}/d` => `['a/b/d', 'a/c/d']`
+- [Supports sequences](#sequences) - (aka "ranges") `{01..03}` => `['01', '02', '03']`
+- [Supports steps](#steps) - (aka "increments") `{2..10..2}` => `['2', '4', '6', '8', '10']`
+- [Supports escaping](#escaping) - To prevent evaluation of special characters.
+
+## Usage
+
+The main export is a function that takes one or more brace `patterns` and `options`.
+
+```js
+const braces = require('braces');
+// braces(patterns[, options]);
+
+console.log(braces(['{01..05}', '{a..e}']));
+//=> ['(0[1-5])', '([a-e])']
+
+console.log(braces(['{01..05}', '{a..e}'], { expand: true }));
+//=> ['01', '02', '03', '04', '05', 'a', 'b', 'c', 'd', 'e']
+```
+
+### Brace Expansion vs. Compilation
+
+By default, brace patterns are compiled into strings that are optimized for creating regular expressions and matching.
+
+**Compiled**
+
+```js
+console.log(braces('a/{x,y,z}/b'));
+//=> ['a/(x|y|z)/b']
+console.log(braces(['a/{01..20}/b', 'a/{1..5}/b']));
+//=> [ 'a/(0[1-9]|1[0-9]|20)/b', 'a/([1-5])/b' ]
+```
+
+**Expanded**
+
+Enable brace expansion by setting the `expand` option to true, or by using [braces.expand()](#expand) (returns an array similar to what you'd expect from Bash, or `echo {1..5}`, or [minimatch](https://github.com/isaacs/minimatch)):
+
+```js
+console.log(braces('a/{x,y,z}/b', { expand: true }));
+//=> ['a/x/b', 'a/y/b', 'a/z/b']
+
+console.log(braces.expand('{01..10}'));
+//=> ['01','02','03','04','05','06','07','08','09','10']
+```
+
+### Lists
+
+Expand lists (like Bash "sets"):
+
+```js
+console.log(braces('a/{foo,bar,baz}/*.js'));
+//=> ['a/(foo|bar|baz)/*.js']
+
+console.log(braces.expand('a/{foo,bar,baz}/*.js'));
+//=> ['a/foo/*.js', 'a/bar/*.js', 'a/baz/*.js']
+```
+
+### Sequences
+
+Expand ranges of characters (like Bash "sequences"):
+
+```js
+console.log(braces.expand('{1..3}')); // ['1', '2', '3']
+console.log(braces.expand('a/{1..3}/b')); // ['a/1/b', 'a/2/b', 'a/3/b']
+console.log(braces('{a..c}', { expand: true })); // ['a', 'b', 'c']
+console.log(braces('foo/{a..c}', { expand: true })); // ['foo/a', 'foo/b', 'foo/c']
+
+// supports zero-padded ranges
+console.log(braces('a/{01..03}/b')); //=> ['a/(0[1-3])/b']
+console.log(braces('a/{001..300}/b')); //=> ['a/(0{2}[1-9]|0[1-9][0-9]|[12][0-9]{2}|300)/b']
+```
+
+See [fill-range](https://github.com/jonschlinkert/fill-range) for all available range-expansion options.
+
+### Steppped ranges
+
+Steps, or increments, may be used with ranges:
+
+```js
+console.log(braces.expand('{2..10..2}'));
+//=> ['2', '4', '6', '8', '10']
+
+console.log(braces('{2..10..2}'));
+//=> ['(2|4|6|8|10)']
+```
+
+When the [.optimize](#optimize) method is used, or [options.optimize](#optionsoptimize) is set to true, sequences are passed to [to-regex-range](https://github.com/jonschlinkert/to-regex-range) for expansion.
+
+### Nesting
+
+Brace patterns may be nested. The results of each expanded string are not sorted, and left to right order is preserved.
+
+**"Expanded" braces**
+
+```js
+console.log(braces.expand('a{b,c,/{x,y}}/e'));
+//=> ['ab/e', 'ac/e', 'a/x/e', 'a/y/e']
+
+console.log(braces.expand('a/{x,{1..5},y}/c'));
+//=> ['a/x/c', 'a/1/c', 'a/2/c', 'a/3/c', 'a/4/c', 'a/5/c', 'a/y/c']
+```
+
+**"Optimized" braces**
+
+```js
+console.log(braces('a{b,c,/{x,y}}/e'));
+//=> ['a(b|c|/(x|y))/e']
+
+console.log(braces('a/{x,{1..5},y}/c'));
+//=> ['a/(x|([1-5])|y)/c']
+```
+
+### Escaping
+
+**Escaping braces**
+
+A brace pattern will not be expanded or evaluted if _either the opening or closing brace is escaped_:
+
+```js
+console.log(braces.expand('a\\{d,c,b}e'));
+//=> ['a{d,c,b}e']
+
+console.log(braces.expand('a{d,c,b\\}e'));
+//=> ['a{d,c,b}e']
+```
+
+**Escaping commas**
+
+Commas inside braces may also be escaped:
+
+```js
+console.log(braces.expand('a{b\\,c}d'));
+//=> ['a{b,c}d']
+
+console.log(braces.expand('a{d\\,c,b}e'));
+//=> ['ad,ce', 'abe']
+```
+
+**Single items**
+
+Following bash conventions, a brace pattern is also not expanded when it contains a single character:
+
+```js
+console.log(braces.expand('a{b}c'));
+//=> ['a{b}c']
+```
+
+## Options
+
+### options.maxLength
+
+**Type**: `Number`
+
+**Default**: `10,000`
+
+**Description**: Limit the length of the input string. Useful when the input string is generated or your application allows users to pass a string, et cetera.
+
+```js
+console.log(braces('a/{b,c}/d', { maxLength: 3 })); //=> throws an error
+```
+
+### options.expand
+
+**Type**: `Boolean`
+
+**Default**: `undefined`
+
+**Description**: Generate an "expanded" brace pattern (alternatively you can use the `braces.expand()` method, which does the same thing).
+
+```js
+console.log(braces('a/{b,c}/d', { expand: true }));
+//=> [ 'a/b/d', 'a/c/d' ]
+```
+
+### options.nodupes
+
+**Type**: `Boolean`
+
+**Default**: `undefined`
+
+**Description**: Remove duplicates from the returned array.
+
+### options.rangeLimit
+
+**Type**: `Number`
+
+**Default**: `1000`
+
+**Description**: To prevent malicious patterns from being passed by users, an error is thrown when `braces.expand()` is used or `options.expand` is true and the generated range will exceed the `rangeLimit`.
+
+You can customize `options.rangeLimit` or set it to `Inifinity` to disable this altogether.
+
+**Examples**
+
+```js
+// pattern exceeds the "rangeLimit", so it's optimized automatically
+console.log(braces.expand('{1..1000}'));
+//=> ['([1-9]|[1-9][0-9]{1,2}|1000)']
+
+// pattern does not exceed "rangeLimit", so it's NOT optimized
+console.log(braces.expand('{1..100}'));
+//=> ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '54', '55', '56', '57', '58', '59', '60', '61', '62', '63', '64', '65', '66', '67', '68', '69', '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '90', '91', '92', '93', '94', '95', '96', '97', '98', '99', '100']
+```
+
+### options.transform
+
+**Type**: `Function`
+
+**Default**: `undefined`
+
+**Description**: Customize range expansion.
+
+**Example: Transforming non-numeric values**
+
+```js
+const alpha = braces.expand('x/{a..e}/y', {
+  transform(value, index) {
+    // When non-numeric values are passed, "value" is a character code.
+    return 'foo/' + String.fromCharCode(value) + '-' + index;
+  },
+});
+console.log(alpha);
+//=> [ 'x/foo/a-0/y', 'x/foo/b-1/y', 'x/foo/c-2/y', 'x/foo/d-3/y', 'x/foo/e-4/y' ]
+```
+
+**Example: Transforming numeric values**
+
+```js
+const numeric = braces.expand('{1..5}', {
+  transform(value) {
+    // when numeric values are passed, "value" is a number
+    return 'foo/' + value * 2;
+  },
+});
+console.log(numeric);
+//=> [ 'foo/2', 'foo/4', 'foo/6', 'foo/8', 'foo/10' ]
+```
+
+### options.quantifiers
+
+**Type**: `Boolean`
+
+**Default**: `undefined`
+
+**Description**: In regular expressions, quanitifiers can be used to specify how many times a token can be repeated. For example, `a{1,3}` will match the letter `a` one to three times.
+
+Unfortunately, regex quantifiers happen to share the same syntax as [Bash lists](#lists)
+
+The `quantifiers` option tells braces to detect when [regex quantifiers](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#quantifiers) are defined in the given pattern, and not to try to expand them as lists.
+
+**Examples**
+
+```js
+const braces = require('braces');
+console.log(braces('a/b{1,3}/{x,y,z}'));
+//=> [ 'a/b(1|3)/(x|y|z)' ]
+console.log(braces('a/b{1,3}/{x,y,z}', { quantifiers: true }));
+//=> [ 'a/b{1,3}/(x|y|z)' ]
+console.log(braces('a/b{1,3}/{x,y,z}', { quantifiers: true, expand: true }));
+//=> [ 'a/b{1,3}/x', 'a/b{1,3}/y', 'a/b{1,3}/z' ]
+```
+
+### options.keepEscaping
+
+**Type**: `Boolean`
+
+**Default**: `undefined`
+
+**Description**: Do not strip backslashes that were used for escaping from the result.
+
+## What is "brace expansion"?
+
+Brace expansion is a type of parameter expansion that was made popular by unix shells for generating lists of strings, as well as regex-like matching when used alongside wildcards (globs).
+
+In addition to "expansion", braces are also used for matching. In other words:
+
+- [brace expansion](#brace-expansion) is for generating new lists
+- [brace matching](#brace-matching) is for filtering existing lists
+
+<details>
+<summary><strong>More about brace expansion</strong> (click to expand)</summary>
+
+There are two main types of brace expansion:
+
+1. **lists**: which are defined using comma-separated values inside curly braces: `{a,b,c}`
+2. **sequences**: which are defined using a starting value and an ending value, separated by two dots: `a{1..3}b`. Optionally, a third argument may be passed to define a "step" or increment to use: `a{1..100..10}b`. These are also sometimes referred to as "ranges".
+
+Here are some example brace patterns to illustrate how they work:
+
+**Sets**
+
+```
+{a,b,c}       => a b c
+{a,b,c}{1,2}  => a1 a2 b1 b2 c1 c2
+```
+
+**Sequences**
+
+```
+{1..9}        => 1 2 3 4 5 6 7 8 9
+{4..-4}       => 4 3 2 1 0 -1 -2 -3 -4
+{1..20..3}    => 1 4 7 10 13 16 19
+{a..j}        => a b c d e f g h i j
+{j..a}        => j i h g f e d c b a
+{a..z..3}     => a d g j m p s v y
+```
+
+**Combination**
+
+Sets and sequences can be mixed together or used along with any other strings.
+
+```
+{a,b,c}{1..3}   => a1 a2 a3 b1 b2 b3 c1 c2 c3
+foo/{a,b,c}/bar => foo/a/bar foo/b/bar foo/c/bar
+```
+
+The fact that braces can be "expanded" from relatively simple patterns makes them ideal for quickly generating test fixtures, file paths, and similar use cases.
+
+## Brace matching
+
+In addition to _expansion_, brace patterns are also useful for performing regular-expression-like matching.
+
+For example, the pattern `foo/{1..3}/bar` would match any of following strings:
+
+```
+foo/1/bar
+foo/2/bar
+foo/3/bar
+```
+
+But not:
+
+```
+baz/1/qux
+baz/2/qux
+baz/3/qux
+```
+
+Braces can also be combined with [glob patterns](https://github.com/jonschlinkert/micromatch) to perform more advanced wildcard matching. For example, the pattern `*/{1..3}/*` would match any of following strings:
+
+```
+foo/1/bar
+foo/2/bar
+foo/3/bar
+baz/1/qux
+baz/2/qux
+baz/3/qux
+```
+
+## Brace matching pitfalls
+
+Although brace patterns offer a user-friendly way of matching ranges or sets of strings, there are also some major disadvantages and potential risks you should be aware of.
+
+### tldr
+
+**"brace bombs"**
+
+- brace expansion can eat up a huge amount of processing resources
+- as brace patterns increase _linearly in size_, the system resources required to expand the pattern increase exponentially
+- users can accidentally (or intentially) exhaust your system's resources resulting in the equivalent of a DoS attack (bonus: no programming knowledge is required!)
+
+For a more detailed explanation with examples, see the [geometric complexity](#geometric-complexity) section.
+
+### The solution
+
+Jump to the [performance section](#performance) to see how Braces solves this problem in comparison to other libraries.
+
+### Geometric complexity
+
+At minimum, brace patterns with sets limited to two elements have quadradic or `O(n^2)` complexity. But the complexity of the algorithm increases exponentially as the number of sets, _and elements per set_, increases, which is `O(n^c)`.
+
+For example, the following sets demonstrate quadratic (`O(n^2)`) complexity:
+
+```
+{1,2}{3,4}      => (2X2)    => 13 14 23 24
+{1,2}{3,4}{5,6} => (2X2X2)  => 135 136 145 146 235 236 245 246
+```
+
+But add an element to a set, and we get a n-fold Cartesian product with `O(n^c)` complexity:
+
+```
+{1,2,3}{4,5,6}{7,8,9} => (3X3X3) => 147 148 149 157 158 159 167 168 169 247 248
+                                    249 257 258 259 267 268 269 347 348 349 357
+                                    358 359 367 368 369
+```
+
+Now, imagine how this complexity grows given that each element is a n-tuple:
+
+```
+{1..100}{1..100}         => (100X100)     => 10,000 elements (38.4 kB)
+{1..100}{1..100}{1..100} => (100X100X100) => 1,000,000 elements (5.76 MB)
+```
+
+Although these examples are clearly contrived, they demonstrate how brace patterns can quickly grow out of control.
+
+**More information**
+
+Interested in learning more about brace expansion?
+
+- [linuxjournal/bash-brace-expansion](http://www.linuxjournal.com/content/bash-brace-expansion)
+- [rosettacode/Brace_expansion](https://rosettacode.org/wiki/Brace_expansion)
+- [cartesian product](https://en.wikipedia.org/wiki/Cartesian_product)
+
+</details>
+
+## Performance
+
+Braces is not only screaming fast, it's also more accurate the other brace expansion libraries.
+
+### Better algorithms
+
+Fortunately there is a solution to the ["brace bomb" problem](#brace-matching-pitfalls): _don't expand brace patterns into an array when they're used for matching_.
+
+Instead, convert the pattern into an optimized regular expression. This is easier said than done, and braces is the only library that does this currently.
+
+**The proof is in the numbers**
+
+Minimatch gets exponentially slower as patterns increase in complexity, braces does not. The following results were generated using `braces()` and `minimatch.braceExpand()`, respectively.
+
+| **Pattern**                 | **braces**          | **[minimatch][]**            |
+| --------------------------- | ------------------- | ---------------------------- |
+| `{1..9007199254740991}`[^1] | `298 B` (5ms 459μs) | N/A (freezes)                |
+| `{1..1000000000000000}`     | `41 B` (1ms 15μs)   | N/A (freezes)                |
+| `{1..100000000000000}`      | `40 B` (890μs)      | N/A (freezes)                |
+| `{1..10000000000000}`       | `39 B` (2ms 49μs)   | N/A (freezes)                |
+| `{1..1000000000000}`        | `38 B` (608μs)      | N/A (freezes)                |
+| `{1..100000000000}`         | `37 B` (397μs)      | N/A (freezes)                |
+| `{1..10000000000}`          | `35 B` (983μs)      | N/A (freezes)                |
+| `{1..1000000000}`           | `34 B` (798μs)      | N/A (freezes)                |
+| `{1..100000000}`            | `33 B` (733μs)      | N/A (freezes)                |
+| `{1..10000000}`             | `32 B` (5ms 632μs)  | `78.89 MB` (16s 388ms 569μs) |
+| `{1..1000000}`              | `31 B` (1ms 381μs)  | `6.89 MB` (1s 496ms 887μs)   |
+| `{1..100000}`               | `30 B` (950μs)      | `588.89 kB` (146ms 921μs)    |
+| `{1..10000}`                | `29 B` (1ms 114μs)  | `48.89 kB` (14ms 187μs)      |
+| `{1..1000}`                 | `28 B` (760μs)      | `3.89 kB` (1ms 453μs)        |
+| `{1..100}`                  | `22 B` (345μs)      | `291 B` (196μs)              |
+| `{1..10}`                   | `10 B` (533μs)      | `20 B` (37μs)                |
+| `{1..3}`                    | `7 B` (190μs)       | `5 B` (27μs)                 |
+
+### Faster algorithms
+
+When you need expansion, braces is still much faster.
+
+_(the following results were generated using `braces.expand()` and `minimatch.braceExpand()`, respectively)_
+
+| **Pattern**     | **braces**                  | **[minimatch][]**            |
+| --------------- | --------------------------- | ---------------------------- |
+| `{1..10000000}` | `78.89 MB` (2s 698ms 642μs) | `78.89 MB` (18s 601ms 974μs) |
+| `{1..1000000}`  | `6.89 MB` (458ms 576μs)     | `6.89 MB` (1s 491ms 621μs)   |
+| `{1..100000}`   | `588.89 kB` (20ms 728μs)    | `588.89 kB` (156ms 919μs)    |
+| `{1..10000}`    | `48.89 kB` (2ms 202μs)      | `48.89 kB` (13ms 641μs)      |
+| `{1..1000}`     | `3.89 kB` (1ms 796μs)       | `3.89 kB` (1ms 958μs)        |
+| `{1..100}`      | `291 B` (424μs)             | `291 B` (211μs)              |
+| `{1..10}`       | `20 B` (487μs)              | `20 B` (72μs)                |
+| `{1..3}`        | `5 B` (166μs)               | `5 B` (27μs)                 |
+
+If you'd like to run these comparisons yourself, see [test/support/generate.js](test/support/generate.js).
+
+## Benchmarks
+
+### Running benchmarks
+
+Install dev dependencies:
+
+```bash
+npm i -d && npm benchmark
+```
+
+### Latest results
+
+Braces is more accurate, without sacrificing performance.
+
+```bash
+● expand - range (expanded)
+     braces x 53,167 ops/sec ±0.12% (102 runs sampled)
+  minimatch x 11,378 ops/sec ±0.10% (102 runs sampled)
+● expand - range (optimized for regex)
+     braces x 373,442 ops/sec ±0.04% (100 runs sampled)
+  minimatch x 3,262 ops/sec ±0.18% (100 runs sampled)
+● expand - nested ranges (expanded)
+     braces x 33,921 ops/sec ±0.09% (99 runs sampled)
+  minimatch x 10,855 ops/sec ±0.28% (100 runs sampled)
+● expand - nested ranges (optimized for regex)
+     braces x 287,479 ops/sec ±0.52% (98 runs sampled)
+  minimatch x 3,219 ops/sec ±0.28% (101 runs sampled)
+● expand - set (expanded)
+     braces x 238,243 ops/sec ±0.19% (97 runs sampled)
+  minimatch x 538,268 ops/sec ±0.31% (96 runs sampled)
+● expand - set (optimized for regex)
+     braces x 321,844 ops/sec ±0.10% (97 runs sampled)
+  minimatch x 140,600 ops/sec ±0.15% (100 runs sampled)
+● expand - nested sets (expanded)
+     braces x 165,371 ops/sec ±0.42% (96 runs sampled)
+  minimatch x 337,720 ops/sec ±0.28% (100 runs sampled)
+● expand - nested sets (optimized for regex)
+     braces x 242,948 ops/sec ±0.12% (99 runs sampled)
+  minimatch x 87,403 ops/sec ±0.79% (96 runs sampled)
+```
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Contributors
+
+| **Commits** | **Contributor**                                               |
+| ----------- | ------------------------------------------------------------- |
+| 197         | [jonschlinkert](https://github.com/jonschlinkert)             |
+| 4           | [doowb](https://github.com/doowb)                             |
+| 1           | [es128](https://github.com/es128)                             |
+| 1           | [eush77](https://github.com/eush77)                           |
+| 1           | [hemanth](https://github.com/hemanth)                         |
+| 1           | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |
+
+### Author
+
+**Jon Schlinkert**
+
+- [GitHub Profile](https://github.com/jonschlinkert)
+- [Twitter Profile](https://twitter.com/jonschlinkert)
+- [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+
+### License
+
+Copyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+---
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on April 08, 2019._
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/index.js b/src/main/webapp/com/css/sass/node_modules/braces/index.js
new file mode 100644
index 00000000..d222c13b
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/index.js
@@ -0,0 +1,170 @@
+'use strict';
+
+const stringify = require('./lib/stringify');
+const compile = require('./lib/compile');
+const expand = require('./lib/expand');
+const parse = require('./lib/parse');
+
+/**
+ * Expand the given pattern or create a regex-compatible string.
+ *
+ * ```js
+ * const braces = require('braces');
+ * console.log(braces('{a,b,c}', { compile: true })); //=> ['(a|b|c)']
+ * console.log(braces('{a,b,c}')); //=> ['a', 'b', 'c']
+ * ```
+ * @param {String} `str`
+ * @param {Object} `options`
+ * @return {String}
+ * @api public
+ */
+
+const braces = (input, options = {}) => {
+  let output = [];
+
+  if (Array.isArray(input)) {
+    for (const pattern of input) {
+      const result = braces.create(pattern, options);
+      if (Array.isArray(result)) {
+        output.push(...result);
+      } else {
+        output.push(result);
+      }
+    }
+  } else {
+    output = [].concat(braces.create(input, options));
+  }
+
+  if (options && options.expand === true && options.nodupes === true) {
+    output = [...new Set(output)];
+  }
+  return output;
+};
+
+/**
+ * Parse the given `str` with the given `options`.
+ *
+ * ```js
+ * // braces.parse(pattern, [, options]);
+ * const ast = braces.parse('a/{b,c}/d');
+ * console.log(ast);
+ * ```
+ * @param {String} pattern Brace pattern to parse
+ * @param {Object} options
+ * @return {Object} Returns an AST
+ * @api public
+ */
+
+braces.parse = (input, options = {}) => parse(input, options);
+
+/**
+ * Creates a braces string from an AST, or an AST node.
+ *
+ * ```js
+ * const braces = require('braces');
+ * let ast = braces.parse('foo/{a,b}/bar');
+ * console.log(stringify(ast.nodes[2])); //=> '{a,b}'
+ * ```
+ * @param {String} `input` Brace pattern or AST.
+ * @param {Object} `options`
+ * @return {Array} Returns an array of expanded values.
+ * @api public
+ */
+
+braces.stringify = (input, options = {}) => {
+  if (typeof input === 'string') {
+    return stringify(braces.parse(input, options), options);
+  }
+  return stringify(input, options);
+};
+
+/**
+ * Compiles a brace pattern into a regex-compatible, optimized string.
+ * This method is called by the main [braces](#braces) function by default.
+ *
+ * ```js
+ * const braces = require('braces');
+ * console.log(braces.compile('a/{b,c}/d'));
+ * //=> ['a/(b|c)/d']
+ * ```
+ * @param {String} `input` Brace pattern or AST.
+ * @param {Object} `options`
+ * @return {Array} Returns an array of expanded values.
+ * @api public
+ */
+
+braces.compile = (input, options = {}) => {
+  if (typeof input === 'string') {
+    input = braces.parse(input, options);
+  }
+  return compile(input, options);
+};
+
+/**
+ * Expands a brace pattern into an array. This method is called by the
+ * main [braces](#braces) function when `options.expand` is true. Before
+ * using this method it's recommended that you read the [performance notes](#performance))
+ * and advantages of using [.compile](#compile) instead.
+ *
+ * ```js
+ * const braces = require('braces');
+ * console.log(braces.expand('a/{b,c}/d'));
+ * //=> ['a/b/d', 'a/c/d'];
+ * ```
+ * @param {String} `pattern` Brace pattern
+ * @param {Object} `options`
+ * @return {Array} Returns an array of expanded values.
+ * @api public
+ */
+
+braces.expand = (input, options = {}) => {
+  if (typeof input === 'string') {
+    input = braces.parse(input, options);
+  }
+
+  let result = expand(input, options);
+
+  // filter out empty strings if specified
+  if (options.noempty === true) {
+    result = result.filter(Boolean);
+  }
+
+  // filter out duplicates if specified
+  if (options.nodupes === true) {
+    result = [...new Set(result)];
+  }
+
+  return result;
+};
+
+/**
+ * Processes a brace pattern and returns either an expanded array
+ * (if `options.expand` is true), a highly optimized regex-compatible string.
+ * This method is called by the main [braces](#braces) function.
+ *
+ * ```js
+ * const braces = require('braces');
+ * console.log(braces.create('user-{200..300}/project-{a,b,c}-{1..10}'))
+ * //=> 'user-(20[0-9]|2[1-9][0-9]|300)/project-(a|b|c)-([1-9]|10)'
+ * ```
+ * @param {String} `pattern` Brace pattern
+ * @param {Object} `options`
+ * @return {Array} Returns an array of expanded values.
+ * @api public
+ */
+
+braces.create = (input, options = {}) => {
+  if (input === '' || input.length < 3) {
+    return [input];
+  }
+
+  return options.expand !== true
+    ? braces.compile(input, options)
+    : braces.expand(input, options);
+};
+
+/**
+ * Expose "braces"
+ */
+
+module.exports = braces;
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/lib/compile.js b/src/main/webapp/com/css/sass/node_modules/braces/lib/compile.js
new file mode 100644
index 00000000..dce69beb
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/lib/compile.js
@@ -0,0 +1,60 @@
+'use strict';
+
+const fill = require('fill-range');
+const utils = require('./utils');
+
+const compile = (ast, options = {}) => {
+  const walk = (node, parent = {}) => {
+    const invalidBlock = utils.isInvalidBrace(parent);
+    const invalidNode = node.invalid === true && options.escapeInvalid === true;
+    const invalid = invalidBlock === true || invalidNode === true;
+    const prefix = options.escapeInvalid === true ? '\\' : '';
+    let output = '';
+
+    if (node.isOpen === true) {
+      return prefix + node.value;
+    }
+
+    if (node.isClose === true) {
+      console.log('node.isClose', prefix, node.value);
+      return prefix + node.value;
+    }
+
+    if (node.type === 'open') {
+      return invalid ? prefix + node.value : '(';
+    }
+
+    if (node.type === 'close') {
+      return invalid ? prefix + node.value : ')';
+    }
+
+    if (node.type === 'comma') {
+      return node.prev.type === 'comma' ? '' : invalid ? node.value : '|';
+    }
+
+    if (node.value) {
+      return node.value;
+    }
+
+    if (node.nodes && node.ranges > 0) {
+      const args = utils.reduce(node.nodes);
+      const range = fill(...args, { ...options, wrap: false, toRegex: true, strictZeros: true });
+
+      if (range.length !== 0) {
+        return args.length > 1 && range.length > 1 ? `(${range})` : range;
+      }
+    }
+
+    if (node.nodes) {
+      for (const child of node.nodes) {
+        output += walk(child, node);
+      }
+    }
+
+    return output;
+  };
+
+  return walk(ast);
+};
+
+module.exports = compile;
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/lib/constants.js b/src/main/webapp/com/css/sass/node_modules/braces/lib/constants.js
new file mode 100644
index 00000000..2bb3b884
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/lib/constants.js
@@ -0,0 +1,57 @@
+'use strict';
+
+module.exports = {
+  MAX_LENGTH: 10000,
+
+  // Digits
+  CHAR_0: '0', /* 0 */
+  CHAR_9: '9', /* 9 */
+
+  // Alphabet chars.
+  CHAR_UPPERCASE_A: 'A', /* A */
+  CHAR_LOWERCASE_A: 'a', /* a */
+  CHAR_UPPERCASE_Z: 'Z', /* Z */
+  CHAR_LOWERCASE_Z: 'z', /* z */
+
+  CHAR_LEFT_PARENTHESES: '(', /* ( */
+  CHAR_RIGHT_PARENTHESES: ')', /* ) */
+
+  CHAR_ASTERISK: '*', /* * */
+
+  // Non-alphabetic chars.
+  CHAR_AMPERSAND: '&', /* & */
+  CHAR_AT: '@', /* @ */
+  CHAR_BACKSLASH: '\\', /* \ */
+  CHAR_BACKTICK: '`', /* ` */
+  CHAR_CARRIAGE_RETURN: '\r', /* \r */
+  CHAR_CIRCUMFLEX_ACCENT: '^', /* ^ */
+  CHAR_COLON: ':', /* : */
+  CHAR_COMMA: ',', /* , */
+  CHAR_DOLLAR: '$', /* . */
+  CHAR_DOT: '.', /* . */
+  CHAR_DOUBLE_QUOTE: '"', /* " */
+  CHAR_EQUAL: '=', /* = */
+  CHAR_EXCLAMATION_MARK: '!', /* ! */
+  CHAR_FORM_FEED: '\f', /* \f */
+  CHAR_FORWARD_SLASH: '/', /* / */
+  CHAR_HASH: '#', /* # */
+  CHAR_HYPHEN_MINUS: '-', /* - */
+  CHAR_LEFT_ANGLE_BRACKET: '<', /* < */
+  CHAR_LEFT_CURLY_BRACE: '{', /* { */
+  CHAR_LEFT_SQUARE_BRACKET: '[', /* [ */
+  CHAR_LINE_FEED: '\n', /* \n */
+  CHAR_NO_BREAK_SPACE: '\u00A0', /* \u00A0 */
+  CHAR_PERCENT: '%', /* % */
+  CHAR_PLUS: '+', /* + */
+  CHAR_QUESTION_MARK: '?', /* ? */
+  CHAR_RIGHT_ANGLE_BRACKET: '>', /* > */
+  CHAR_RIGHT_CURLY_BRACE: '}', /* } */
+  CHAR_RIGHT_SQUARE_BRACKET: ']', /* ] */
+  CHAR_SEMICOLON: ';', /* ; */
+  CHAR_SINGLE_QUOTE: '\'', /* ' */
+  CHAR_SPACE: ' ', /*   */
+  CHAR_TAB: '\t', /* \t */
+  CHAR_UNDERSCORE: '_', /* _ */
+  CHAR_VERTICAL_LINE: '|', /* | */
+  CHAR_ZERO_WIDTH_NOBREAK_SPACE: '\uFEFF' /* \uFEFF */
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/lib/expand.js b/src/main/webapp/com/css/sass/node_modules/braces/lib/expand.js
new file mode 100644
index 00000000..35b2c41d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/lib/expand.js
@@ -0,0 +1,113 @@
+'use strict';
+
+const fill = require('fill-range');
+const stringify = require('./stringify');
+const utils = require('./utils');
+
+const append = (queue = '', stash = '', enclose = false) => {
+  const result = [];
+
+  queue = [].concat(queue);
+  stash = [].concat(stash);
+
+  if (!stash.length) return queue;
+  if (!queue.length) {
+    return enclose ? utils.flatten(stash).map(ele => `{${ele}}`) : stash;
+  }
+
+  for (const item of queue) {
+    if (Array.isArray(item)) {
+      for (const value of item) {
+        result.push(append(value, stash, enclose));
+      }
+    } else {
+      for (let ele of stash) {
+        if (enclose === true && typeof ele === 'string') ele = `{${ele}}`;
+        result.push(Array.isArray(ele) ? append(item, ele, enclose) : item + ele);
+      }
+    }
+  }
+  return utils.flatten(result);
+};
+
+const expand = (ast, options = {}) => {
+  const rangeLimit = options.rangeLimit === undefined ? 1000 : options.rangeLimit;
+
+  const walk = (node, parent = {}) => {
+    node.queue = [];
+
+    let p = parent;
+    let q = parent.queue;
+
+    while (p.type !== 'brace' && p.type !== 'root' && p.parent) {
+      p = p.parent;
+      q = p.queue;
+    }
+
+    if (node.invalid || node.dollar) {
+      q.push(append(q.pop(), stringify(node, options)));
+      return;
+    }
+
+    if (node.type === 'brace' && node.invalid !== true && node.nodes.length === 2) {
+      q.push(append(q.pop(), ['{}']));
+      return;
+    }
+
+    if (node.nodes && node.ranges > 0) {
+      const args = utils.reduce(node.nodes);
+
+      if (utils.exceedsLimit(...args, options.step, rangeLimit)) {
+        throw new RangeError('expanded array length exceeds range limit. Use options.rangeLimit to increase or disable the limit.');
+      }
+
+      let range = fill(...args, options);
+      if (range.length === 0) {
+        range = stringify(node, options);
+      }
+
+      q.push(append(q.pop(), range));
+      node.nodes = [];
+      return;
+    }
+
+    const enclose = utils.encloseBrace(node);
+    let queue = node.queue;
+    let block = node;
+
+    while (block.type !== 'brace' && block.type !== 'root' && block.parent) {
+      block = block.parent;
+      queue = block.queue;
+    }
+
+    for (let i = 0; i < node.nodes.length; i++) {
+      const child = node.nodes[i];
+
+      if (child.type === 'comma' && node.type === 'brace') {
+        if (i === 1) queue.push('');
+        queue.push('');
+        continue;
+      }
+
+      if (child.type === 'close') {
+        q.push(append(q.pop(), queue, enclose));
+        continue;
+      }
+
+      if (child.value && child.type !== 'open') {
+        queue.push(append(queue.pop(), child.value));
+        continue;
+      }
+
+      if (child.nodes) {
+        walk(child, node);
+      }
+    }
+
+    return queue;
+  };
+
+  return utils.flatten(walk(ast));
+};
+
+module.exports = expand;
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/lib/parse.js b/src/main/webapp/com/css/sass/node_modules/braces/lib/parse.js
new file mode 100644
index 00000000..3a6988e6
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/lib/parse.js
@@ -0,0 +1,331 @@
+'use strict';
+
+const stringify = require('./stringify');
+
+/**
+ * Constants
+ */
+
+const {
+  MAX_LENGTH,
+  CHAR_BACKSLASH, /* \ */
+  CHAR_BACKTICK, /* ` */
+  CHAR_COMMA, /* , */
+  CHAR_DOT, /* . */
+  CHAR_LEFT_PARENTHESES, /* ( */
+  CHAR_RIGHT_PARENTHESES, /* ) */
+  CHAR_LEFT_CURLY_BRACE, /* { */
+  CHAR_RIGHT_CURLY_BRACE, /* } */
+  CHAR_LEFT_SQUARE_BRACKET, /* [ */
+  CHAR_RIGHT_SQUARE_BRACKET, /* ] */
+  CHAR_DOUBLE_QUOTE, /* " */
+  CHAR_SINGLE_QUOTE, /* ' */
+  CHAR_NO_BREAK_SPACE,
+  CHAR_ZERO_WIDTH_NOBREAK_SPACE
+} = require('./constants');
+
+/**
+ * parse
+ */
+
+const parse = (input, options = {}) => {
+  if (typeof input !== 'string') {
+    throw new TypeError('Expected a string');
+  }
+
+  const opts = options || {};
+  const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
+  if (input.length > max) {
+    throw new SyntaxError(`Input length (${input.length}), exceeds max characters (${max})`);
+  }
+
+  const ast = { type: 'root', input, nodes: [] };
+  const stack = [ast];
+  let block = ast;
+  let prev = ast;
+  let brackets = 0;
+  const length = input.length;
+  let index = 0;
+  let depth = 0;
+  let value;
+
+  /**
+   * Helpers
+   */
+
+  const advance = () => input[index++];
+  const push = node => {
+    if (node.type === 'text' && prev.type === 'dot') {
+      prev.type = 'text';
+    }
+
+    if (prev && prev.type === 'text' && node.type === 'text') {
+      prev.value += node.value;
+      return;
+    }
+
+    block.nodes.push(node);
+    node.parent = block;
+    node.prev = prev;
+    prev = node;
+    return node;
+  };
+
+  push({ type: 'bos' });
+
+  while (index < length) {
+    block = stack[stack.length - 1];
+    value = advance();
+
+    /**
+     * Invalid chars
+     */
+
+    if (value === CHAR_ZERO_WIDTH_NOBREAK_SPACE || value === CHAR_NO_BREAK_SPACE) {
+      continue;
+    }
+
+    /**
+     * Escaped chars
+     */
+
+    if (value === CHAR_BACKSLASH) {
+      push({ type: 'text', value: (options.keepEscaping ? value : '') + advance() });
+      continue;
+    }
+
+    /**
+     * Right square bracket (literal): ']'
+     */
+
+    if (value === CHAR_RIGHT_SQUARE_BRACKET) {
+      push({ type: 'text', value: '\\' + value });
+      continue;
+    }
+
+    /**
+     * Left square bracket: '['
+     */
+
+    if (value === CHAR_LEFT_SQUARE_BRACKET) {
+      brackets++;
+
+      let next;
+
+      while (index < length && (next = advance())) {
+        value += next;
+
+        if (next === CHAR_LEFT_SQUARE_BRACKET) {
+          brackets++;
+          continue;
+        }
+
+        if (next === CHAR_BACKSLASH) {
+          value += advance();
+          continue;
+        }
+
+        if (next === CHAR_RIGHT_SQUARE_BRACKET) {
+          brackets--;
+
+          if (brackets === 0) {
+            break;
+          }
+        }
+      }
+
+      push({ type: 'text', value });
+      continue;
+    }
+
+    /**
+     * Parentheses
+     */
+
+    if (value === CHAR_LEFT_PARENTHESES) {
+      block = push({ type: 'paren', nodes: [] });
+      stack.push(block);
+      push({ type: 'text', value });
+      continue;
+    }
+
+    if (value === CHAR_RIGHT_PARENTHESES) {
+      if (block.type !== 'paren') {
+        push({ type: 'text', value });
+        continue;
+      }
+      block = stack.pop();
+      push({ type: 'text', value });
+      block = stack[stack.length - 1];
+      continue;
+    }
+
+    /**
+     * Quotes: '|"|`
+     */
+
+    if (value === CHAR_DOUBLE_QUOTE || value === CHAR_SINGLE_QUOTE || value === CHAR_BACKTICK) {
+      const open = value;
+      let next;
+
+      if (options.keepQuotes !== true) {
+        value = '';
+      }
+
+      while (index < length && (next = advance())) {
+        if (next === CHAR_BACKSLASH) {
+          value += next + advance();
+          continue;
+        }
+
+        if (next === open) {
+          if (options.keepQuotes === true) value += next;
+          break;
+        }
+
+        value += next;
+      }
+
+      push({ type: 'text', value });
+      continue;
+    }
+
+    /**
+     * Left curly brace: '{'
+     */
+
+    if (value === CHAR_LEFT_CURLY_BRACE) {
+      depth++;
+
+      const dollar = prev.value && prev.value.slice(-1) === '$' || block.dollar === true;
+      const brace = {
+        type: 'brace',
+        open: true,
+        close: false,
+        dollar,
+        depth,
+        commas: 0,
+        ranges: 0,
+        nodes: []
+      };
+
+      block = push(brace);
+      stack.push(block);
+      push({ type: 'open', value });
+      continue;
+    }
+
+    /**
+     * Right curly brace: '}'
+     */
+
+    if (value === CHAR_RIGHT_CURLY_BRACE) {
+      if (block.type !== 'brace') {
+        push({ type: 'text', value });
+        continue;
+      }
+
+      const type = 'close';
+      block = stack.pop();
+      block.close = true;
+
+      push({ type, value });
+      depth--;
+
+      block = stack[stack.length - 1];
+      continue;
+    }
+
+    /**
+     * Comma: ','
+     */
+
+    if (value === CHAR_COMMA && depth > 0) {
+      if (block.ranges > 0) {
+        block.ranges = 0;
+        const open = block.nodes.shift();
+        block.nodes = [open, { type: 'text', value: stringify(block) }];
+      }
+
+      push({ type: 'comma', value });
+      block.commas++;
+      continue;
+    }
+
+    /**
+     * Dot: '.'
+     */
+
+    if (value === CHAR_DOT && depth > 0 && block.commas === 0) {
+      const siblings = block.nodes;
+
+      if (depth === 0 || siblings.length === 0) {
+        push({ type: 'text', value });
+        continue;
+      }
+
+      if (prev.type === 'dot') {
+        block.range = [];
+        prev.value += value;
+        prev.type = 'range';
+
+        if (block.nodes.length !== 3 && block.nodes.length !== 5) {
+          block.invalid = true;
+          block.ranges = 0;
+          prev.type = 'text';
+          continue;
+        }
+
+        block.ranges++;
+        block.args = [];
+        continue;
+      }
+
+      if (prev.type === 'range') {
+        siblings.pop();
+
+        const before = siblings[siblings.length - 1];
+        before.value += prev.value + value;
+        prev = before;
+        block.ranges--;
+        continue;
+      }
+
+      push({ type: 'dot', value });
+      continue;
+    }
+
+    /**
+     * Text
+     */
+
+    push({ type: 'text', value });
+  }
+
+  // Mark imbalanced braces and brackets as invalid
+  do {
+    block = stack.pop();
+
+    if (block.type !== 'root') {
+      block.nodes.forEach(node => {
+        if (!node.nodes) {
+          if (node.type === 'open') node.isOpen = true;
+          if (node.type === 'close') node.isClose = true;
+          if (!node.nodes) node.type = 'text';
+          node.invalid = true;
+        }
+      });
+
+      // get the location of the block on parent.nodes (block's siblings)
+      const parent = stack[stack.length - 1];
+      const index = parent.nodes.indexOf(block);
+      // replace the (invalid) block with it's nodes
+      parent.nodes.splice(index, 1, ...block.nodes);
+    }
+  } while (stack.length > 0);
+
+  push({ type: 'eos' });
+  return ast;
+};
+
+module.exports = parse;
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/lib/stringify.js b/src/main/webapp/com/css/sass/node_modules/braces/lib/stringify.js
new file mode 100644
index 00000000..8bcf872c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/lib/stringify.js
@@ -0,0 +1,32 @@
+'use strict';
+
+const utils = require('./utils');
+
+module.exports = (ast, options = {}) => {
+  const stringify = (node, parent = {}) => {
+    const invalidBlock = options.escapeInvalid && utils.isInvalidBrace(parent);
+    const invalidNode = node.invalid === true && options.escapeInvalid === true;
+    let output = '';
+
+    if (node.value) {
+      if ((invalidBlock || invalidNode) && utils.isOpenOrClose(node)) {
+        return '\\' + node.value;
+      }
+      return node.value;
+    }
+
+    if (node.value) {
+      return node.value;
+    }
+
+    if (node.nodes) {
+      for (const child of node.nodes) {
+        output += stringify(child);
+      }
+    }
+    return output;
+  };
+
+  return stringify(ast);
+};
+
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/lib/utils.js b/src/main/webapp/com/css/sass/node_modules/braces/lib/utils.js
new file mode 100644
index 00000000..d19311fe
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/lib/utils.js
@@ -0,0 +1,122 @@
+'use strict';
+
+exports.isInteger = num => {
+  if (typeof num === 'number') {
+    return Number.isInteger(num);
+  }
+  if (typeof num === 'string' && num.trim() !== '') {
+    return Number.isInteger(Number(num));
+  }
+  return false;
+};
+
+/**
+ * Find a node of the given type
+ */
+
+exports.find = (node, type) => node.nodes.find(node => node.type === type);
+
+/**
+ * Find a node of the given type
+ */
+
+exports.exceedsLimit = (min, max, step = 1, limit) => {
+  if (limit === false) return false;
+  if (!exports.isInteger(min) || !exports.isInteger(max)) return false;
+  return ((Number(max) - Number(min)) / Number(step)) >= limit;
+};
+
+/**
+ * Escape the given node with '\\' before node.value
+ */
+
+exports.escapeNode = (block, n = 0, type) => {
+  const node = block.nodes[n];
+  if (!node) return;
+
+  if ((type && node.type === type) || node.type === 'open' || node.type === 'close') {
+    if (node.escaped !== true) {
+      node.value = '\\' + node.value;
+      node.escaped = true;
+    }
+  }
+};
+
+/**
+ * Returns true if the given brace node should be enclosed in literal braces
+ */
+
+exports.encloseBrace = node => {
+  if (node.type !== 'brace') return false;
+  if ((node.commas >> 0 + node.ranges >> 0) === 0) {
+    node.invalid = true;
+    return true;
+  }
+  return false;
+};
+
+/**
+ * Returns true if a brace node is invalid.
+ */
+
+exports.isInvalidBrace = block => {
+  if (block.type !== 'brace') return false;
+  if (block.invalid === true || block.dollar) return true;
+  if ((block.commas >> 0 + block.ranges >> 0) === 0) {
+    block.invalid = true;
+    return true;
+  }
+  if (block.open !== true || block.close !== true) {
+    block.invalid = true;
+    return true;
+  }
+  return false;
+};
+
+/**
+ * Returns true if a node is an open or close node
+ */
+
+exports.isOpenOrClose = node => {
+  if (node.type === 'open' || node.type === 'close') {
+    return true;
+  }
+  return node.open === true || node.close === true;
+};
+
+/**
+ * Reduce an array of text nodes.
+ */
+
+exports.reduce = nodes => nodes.reduce((acc, node) => {
+  if (node.type === 'text') acc.push(node.value);
+  if (node.type === 'range') node.type = 'text';
+  return acc;
+}, []);
+
+/**
+ * Flatten an array
+ */
+
+exports.flatten = (...args) => {
+  const result = [];
+
+  const flat = arr => {
+    for (let i = 0; i < arr.length; i++) {
+      const ele = arr[i];
+
+      if (Array.isArray(ele)) {
+        flat(ele);
+        continue;
+      }
+
+      if (ele !== undefined) {
+        result.push(ele);
+      }
+    }
+    return result;
+  };
+
+  flat(args);
+  return result;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/braces/package.json b/src/main/webapp/com/css/sass/node_modules/braces/package.json
new file mode 100644
index 00000000..c3c056e4
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/braces/package.json
@@ -0,0 +1,77 @@
+{
+  "name": "braces",
+  "description": "Bash-like brace expansion, implemented in JavaScript. Safer than other brace expansion libs, with complete support for the Bash 4.3 braces specification, without sacrificing speed.",
+  "version": "3.0.3",
+  "homepage": "https://github.com/micromatch/braces",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Brian Woodward (https://twitter.com/doowb)",
+    "Elan Shanker (https://github.com/es128)",
+    "Eugene Sharygin (https://github.com/eush77)",
+    "hemanth.hm (http://h3manth.com)",
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)"
+  ],
+  "repository": "micromatch/braces",
+  "bugs": {
+    "url": "https://github.com/micromatch/braces/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js",
+    "lib"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=8"
+  },
+  "scripts": {
+    "test": "mocha",
+    "benchmark": "node benchmark"
+  },
+  "dependencies": {
+    "fill-range": "^7.1.1"
+  },
+  "devDependencies": {
+    "ansi-colors": "^3.2.4",
+    "bash-path": "^2.0.1",
+    "gulp-format-md": "^2.0.0",
+    "mocha": "^6.1.1"
+  },
+  "keywords": [
+    "alpha",
+    "alphabetical",
+    "bash",
+    "brace",
+    "braces",
+    "expand",
+    "expansion",
+    "filepath",
+    "fill",
+    "fs",
+    "glob",
+    "globbing",
+    "letter",
+    "match",
+    "matches",
+    "matching",
+    "number",
+    "numerical",
+    "path",
+    "range",
+    "ranges",
+    "sh"
+  ],
+  "verb": {
+    "toc": false,
+    "layout": "default",
+    "tasks": [
+      "readme"
+    ],
+    "lint": {
+      "reflinks": true
+    },
+    "plugins": [
+      "gulp-format-md"
+    ]
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/LICENSE b/src/main/webapp/com/css/sass/node_modules/chokidar/LICENSE
new file mode 100644
index 00000000..fa9162b5
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2012-2019 Paul Miller (https://paulmillr.com), Elan Shanker
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the “Software”), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/README.md b/src/main/webapp/com/css/sass/node_modules/chokidar/README.md
new file mode 100644
index 00000000..8e25decb
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/README.md
@@ -0,0 +1,308 @@
+# Chokidar [![Weekly downloads](https://img.shields.io/npm/dw/chokidar.svg)](https://github.com/paulmillr/chokidar) [![Yearly downloads](https://img.shields.io/npm/dy/chokidar.svg)](https://github.com/paulmillr/chokidar)
+
+> Minimal and efficient cross-platform file watching library
+
+[![NPM](https://nodei.co/npm/chokidar.png)](https://www.npmjs.com/package/chokidar)
+
+## Why?
+
+Node.js `fs.watch`:
+
+* Doesn't report filenames on MacOS.
+* Doesn't report events at all when using editors like Sublime on MacOS.
+* Often reports events twice.
+* Emits most changes as `rename`.
+* Does not provide an easy way to recursively watch file trees.
+* Does not support recursive watching on Linux.
+
+Node.js `fs.watchFile`:
+
+* Almost as bad at event handling.
+* Also does not provide any recursive watching.
+* Results in high CPU utilization.
+
+Chokidar resolves these problems.
+
+Initially made for **[Brunch](https://brunch.io/)** (an ultra-swift web app build tool), it is now used in
+[Microsoft's Visual Studio Code](https://github.com/microsoft/vscode),
+[gulp](https://github.com/gulpjs/gulp/),
+[karma](https://karma-runner.github.io/),
+[PM2](https://github.com/Unitech/PM2),
+[browserify](http://browserify.org/),
+[webpack](https://webpack.github.io/),
+[BrowserSync](https://www.browsersync.io/),
+and [many others](https://www.npmjs.com/browse/depended/chokidar).
+It has proven itself in production environments.
+
+Version 3 is out! Check out our blog post about it: [Chokidar 3: How to save 32TB of traffic every week](https://paulmillr.com/posts/chokidar-3-save-32tb-of-traffic/)
+
+## How?
+
+Chokidar does still rely on the Node.js core `fs` module, but when using
+`fs.watch` and `fs.watchFile` for watching, it normalizes the events it
+receives, often checking for truth by getting file stats and/or dir contents.
+
+On MacOS, chokidar by default uses a native extension exposing the Darwin
+`FSEvents` API. This provides very efficient recursive watching compared with
+implementations like `kqueue` available on most \*nix platforms. Chokidar still
+does have to do some work to normalize the events received that way as well.
+
+On most other platforms, the `fs.watch`-based implementation is the default, which
+avoids polling and keeps CPU usage down. Be advised that chokidar will initiate
+watchers recursively for everything within scope of the paths that have been
+specified, so be judicious about not wasting system resources by watching much
+more than needed.
+
+## Getting started
+
+Install with npm:
+
+```sh
+npm install chokidar
+```
+
+Then `require` and use it in your code:
+
+```javascript
+const chokidar = require('chokidar');
+
+// One-liner for current directory
+chokidar.watch('.').on('all', (event, path) => {
+  console.log(event, path);
+});
+```
+
+## API
+
+```javascript
+// Example of a more typical implementation structure
+
+// Initialize watcher.
+const watcher = chokidar.watch('file, dir, glob, or array', {
+  ignored: /(^|[\/\\])\../, // ignore dotfiles
+  persistent: true
+});
+
+// Something to use when events are received.
+const log = console.log.bind(console);
+// Add event listeners.
+watcher
+  .on('add', path => log(`File ${path} has been added`))
+  .on('change', path => log(`File ${path} has been changed`))
+  .on('unlink', path => log(`File ${path} has been removed`));
+
+// More possible events.
+watcher
+  .on('addDir', path => log(`Directory ${path} has been added`))
+  .on('unlinkDir', path => log(`Directory ${path} has been removed`))
+  .on('error', error => log(`Watcher error: ${error}`))
+  .on('ready', () => log('Initial scan complete. Ready for changes'))
+  .on('raw', (event, path, details) => { // internal
+    log('Raw event info:', event, path, details);
+  });
+
+// 'add', 'addDir' and 'change' events also receive stat() results as second
+// argument when available: https://nodejs.org/api/fs.html#fs_class_fs_stats
+watcher.on('change', (path, stats) => {
+  if (stats) console.log(`File ${path} changed size to ${stats.size}`);
+});
+
+// Watch new files.
+watcher.add('new-file');
+watcher.add(['new-file-2', 'new-file-3', '**/other-file*']);
+
+// Get list of actual paths being watched on the filesystem
+var watchedPaths = watcher.getWatched();
+
+// Un-watch some files.
+await watcher.unwatch('new-file*');
+
+// Stop watching.
+// The method is async!
+watcher.close().then(() => console.log('closed'));
+
+// Full list of options. See below for descriptions.
+// Do not use this example!
+chokidar.watch('file', {
+  persistent: true,
+
+  ignored: '*.txt',
+  ignoreInitial: false,
+  followSymlinks: true,
+  cwd: '.',
+  disableGlobbing: false,
+
+  usePolling: false,
+  interval: 100,
+  binaryInterval: 300,
+  alwaysStat: false,
+  depth: 99,
+  awaitWriteFinish: {
+    stabilityThreshold: 2000,
+    pollInterval: 100
+  },
+
+  ignorePermissionErrors: false,
+  atomic: true // or a custom 'atomicity delay', in milliseconds (default 100)
+});
+
+```
+
+`chokidar.watch(paths, [options])`
+
+* `paths` (string or array of strings). Paths to files, dirs to be watched
+recursively, or glob patterns.
+    - Note: globs must not contain windows separators (`\`),
+    because that's how they work by the standard —
+    you'll need to replace them with forward slashes (`/`).
+    - Note 2: for additional glob documentation, check out low-level
+    library: [picomatch](https://github.com/micromatch/picomatch).
+* `options` (object) Options object as defined below:
+
+#### Persistence
+
+* `persistent` (default: `true`). Indicates whether the process
+should continue to run as long as files are being watched. If set to
+`false` when using `fsevents` to watch, no more events will be emitted
+after `ready`, even if the process continues to run.
+
+#### Path filtering
+
+* `ignored` ([anymatch](https://github.com/es128/anymatch)-compatible definition)
+Defines files/paths to be ignored. The whole relative or absolute path is
+tested, not just filename. If a function with two arguments is provided, it
+gets called twice per path - once with a single argument (the path), second
+time with two arguments (the path and the
+[`fs.Stats`](https://nodejs.org/api/fs.html#fs_class_fs_stats)
+object of that path).
+* `ignoreInitial` (default: `false`). If set to `false` then `add`/`addDir` events are also emitted for matching paths while
+instantiating the watching as chokidar discovers these file paths (before the `ready` event).
+* `followSymlinks` (default: `true`). When `false`, only the
+symlinks themselves will be watched for changes instead of following
+the link references and bubbling events through the link's path.
+* `cwd` (no default). The base directory from which watch `paths` are to be
+derived. Paths emitted with events will be relative to this.
+* `disableGlobbing` (default: `false`). If set to `true` then the strings passed to `.watch()` and `.add()` are treated as
+literal path names, even if they look like globs.
+
+#### Performance
+
+* `usePolling` (default: `false`).
+Whether to use fs.watchFile (backed by polling), or fs.watch. If polling
+leads to high CPU utilization, consider setting this to `false`. It is
+typically necessary to **set this to `true` to successfully watch files over
+a network**, and it may be necessary to successfully watch files in other
+non-standard situations. Setting to `true` explicitly on MacOS overrides the
+`useFsEvents` default. You may also set the CHOKIDAR_USEPOLLING env variable
+to true (1) or false (0) in order to override this option.
+* _Polling-specific settings_ (effective when `usePolling: true`)
+  * `interval` (default: `100`). Interval of file system polling, in milliseconds. You may also
+    set the CHOKIDAR_INTERVAL env variable to override this option.
+  * `binaryInterval` (default: `300`). Interval of file system
+  polling for binary files.
+  ([see list of binary extensions](https://github.com/sindresorhus/binary-extensions/blob/master/binary-extensions.json))
+* `useFsEvents` (default: `true` on MacOS). Whether to use the
+`fsevents` watching interface if available. When set to `true` explicitly
+and `fsevents` is available this supercedes the `usePolling` setting. When
+set to `false` on MacOS, `usePolling: true` becomes the default.
+* `alwaysStat` (default: `false`). If relying upon the
+[`fs.Stats`](https://nodejs.org/api/fs.html#fs_class_fs_stats)
+object that may get passed with `add`, `addDir`, and `change` events, set
+this to `true` to ensure it is provided even in cases where it wasn't
+already available from the underlying watch events.
+* `depth` (default: `undefined`). If set, limits how many levels of
+subdirectories will be traversed.
+* `awaitWriteFinish` (default: `false`).
+By default, the `add` event will fire when a file first appears on disk, before
+the entire file has been written. Furthermore, in some cases some `change`
+events will be emitted while the file is being written. In some cases,
+especially when watching for large files there will be a need to wait for the
+write operation to finish before responding to a file creation or modification.
+Setting `awaitWriteFinish` to `true` (or a truthy value) will poll file size,
+holding its `add` and `change` events until the size does not change for a
+configurable amount of time. The appropriate duration setting is heavily
+dependent on the OS and hardware. For accurate detection this parameter should
+be relatively high, making file watching much less responsive.
+Use with caution.
+  * *`options.awaitWriteFinish` can be set to an object in order to adjust
+  timing params:*
+  * `awaitWriteFinish.stabilityThreshold` (default: 2000). Amount of time in
+  milliseconds for a file size to remain constant before emitting its event.
+  * `awaitWriteFinish.pollInterval` (default: 100). File size polling interval, in milliseconds.
+
+#### Errors
+
+* `ignorePermissionErrors` (default: `false`). Indicates whether to watch files
+that don't have read permissions if possible. If watching fails due to `EPERM`
+or `EACCES` with this set to `true`, the errors will be suppressed silently.
+* `atomic` (default: `true` if `useFsEvents` and `usePolling` are `false`).
+Automatically filters out artifacts that occur when using editors that use
+"atomic writes" instead of writing directly to the source file. If a file is
+re-added within 100 ms of being deleted, Chokidar emits a `change` event
+rather than `unlink` then `add`. If the default of 100 ms does not work well
+for you, you can override it by setting `atomic` to a custom value, in
+milliseconds.
+
+### Methods & Events
+
+`chokidar.watch()` produces an instance of `FSWatcher`. Methods of `FSWatcher`:
+
+* `.add(path / paths)`: Add files, directories, or glob patterns for tracking.
+Takes an array of strings or just one string.
+* `.on(event, callback)`: Listen for an FS event.
+Available events: `add`, `addDir`, `change`, `unlink`, `unlinkDir`, `ready`,
+`raw`, `error`.
+Additionally `all` is available which gets emitted with the underlying event
+name and path for every event other than `ready`, `raw`, and `error`.  `raw` is internal, use it carefully.
+* `.unwatch(path / paths)`: Stop watching files, directories, or glob patterns.
+Takes an array of strings or just one string.
+* `.close()`: **async** Removes all listeners from watched files. Asynchronous, returns Promise. Use with `await` to ensure bugs don't happen.
+* `.getWatched()`: Returns an object representing all the paths on the file
+system being watched by this `FSWatcher` instance. The object's keys are all the
+directories (using absolute paths unless the `cwd` option was used), and the
+values are arrays of the names of the items contained in each directory.
+
+## CLI
+
+If you need a CLI interface for your file watching, check out
+[chokidar-cli](https://github.com/open-cli-tools/chokidar-cli), allowing you to
+execute a command on each change, or get a stdio stream of change events.
+
+## Install Troubleshooting
+
+* `npm WARN optional dep failed, continuing fsevents@n.n.n`
+  * This message is normal part of how `npm` handles optional dependencies and is
+    not indicative of a problem. Even if accompanied by other related error messages,
+    Chokidar should function properly.
+
+* `TypeError: fsevents is not a constructor`
+  * Update chokidar by doing `rm -rf node_modules package-lock.json yarn.lock && npm install`, or update your dependency that uses chokidar.
+
+* Chokidar is producing `ENOSP` error on Linux, like this:
+  * `bash: cannot set terminal process group (-1): Inappropriate ioctl for device bash: no job control in this shell`
+  `Error: watch /home/ ENOSPC`
+  * This means Chokidar ran out of file handles and you'll need to increase their count by executing the following command in Terminal:
+  `echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p`
+
+## Changelog
+
+For more detailed changelog, see [`full_changelog.md`](.github/full_changelog.md).
+- **v3.5 (Jan 6, 2021):** Support for ARM Macs with Apple Silicon. Fixes for deleted symlinks.
+- **v3.4 (Apr 26, 2020):** Support for directory-based symlinks. Fixes for macos file replacement.
+- **v3.3 (Nov 2, 2019):** `FSWatcher#close()` method became async. That fixes IO race conditions related to close method.
+- **v3.2 (Oct 1, 2019):** Improve Linux RAM usage by 50%. Race condition fixes. Windows glob fixes. Improve stability by using tight range of dependency versions.
+- **v3.1 (Sep 16, 2019):** dotfiles are no longer filtered out by default. Use `ignored` option if needed. Improve initial Linux scan time by 50%.
+- **v3 (Apr 30, 2019):** massive CPU & RAM consumption improvements; reduces deps / package size by a factor of 17x and bumps Node.js requirement to v8.16 and higher.
+- **v2 (Dec 29, 2017):** Globs are now posix-style-only; without windows support. Tons of bugfixes.
+- **v1 (Apr 7, 2015):** Glob support, symlink support, tons of bugfixes. Node 0.8+ is supported
+- **v0.1 (Apr 20, 2012):** Initial release, extracted from [Brunch](https://github.com/brunch/brunch/blob/9847a065aea300da99bd0753f90354cde9de1261/src/helpers.coffee#L66)
+
+## Also
+
+Why was chokidar named this way? What's the meaning behind it?
+
+>Chowkidar is a transliteration of a Hindi word meaning 'watchman, gatekeeper', चौकीदार. This ultimately comes from Sanskrit _ चतुष्क_ (crossway, quadrangle, consisting-of-four). This word is also used in other languages like Urdu as (چوکیدار) which is widely used in Pakistan and India. 
+
+## License
+
+MIT (c) Paul Miller (<https://paulmillr.com>), see [LICENSE](LICENSE) file.
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/index.js b/src/main/webapp/com/css/sass/node_modules/chokidar/index.js
new file mode 100644
index 00000000..8752893c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/index.js
@@ -0,0 +1,973 @@
+'use strict';
+
+const { EventEmitter } = require('events');
+const fs = require('fs');
+const sysPath = require('path');
+const { promisify } = require('util');
+const readdirp = require('readdirp');
+const anymatch = require('anymatch').default;
+const globParent = require('glob-parent');
+const isGlob = require('is-glob');
+const braces = require('braces');
+const normalizePath = require('normalize-path');
+
+const NodeFsHandler = require('./lib/nodefs-handler');
+const FsEventsHandler = require('./lib/fsevents-handler');
+const {
+  EV_ALL,
+  EV_READY,
+  EV_ADD,
+  EV_CHANGE,
+  EV_UNLINK,
+  EV_ADD_DIR,
+  EV_UNLINK_DIR,
+  EV_RAW,
+  EV_ERROR,
+
+  STR_CLOSE,
+  STR_END,
+
+  BACK_SLASH_RE,
+  DOUBLE_SLASH_RE,
+  SLASH_OR_BACK_SLASH_RE,
+  DOT_RE,
+  REPLACER_RE,
+
+  SLASH,
+  SLASH_SLASH,
+  BRACE_START,
+  BANG,
+  ONE_DOT,
+  TWO_DOTS,
+  GLOBSTAR,
+  SLASH_GLOBSTAR,
+  ANYMATCH_OPTS,
+  STRING_TYPE,
+  FUNCTION_TYPE,
+  EMPTY_STR,
+  EMPTY_FN,
+
+  isWindows,
+  isMacos,
+  isIBMi
+} = require('./lib/constants');
+
+const stat = promisify(fs.stat);
+const readdir = promisify(fs.readdir);
+
+/**
+ * @typedef {String} Path
+ * @typedef {'all'|'add'|'addDir'|'change'|'unlink'|'unlinkDir'|'raw'|'error'|'ready'} EventName
+ * @typedef {'readdir'|'watch'|'add'|'remove'|'change'} ThrottleType
+ */
+
+/**
+ *
+ * @typedef {Object} WatchHelpers
+ * @property {Boolean} followSymlinks
+ * @property {'stat'|'lstat'} statMethod
+ * @property {Path} path
+ * @property {Path} watchPath
+ * @property {Function} entryPath
+ * @property {Boolean} hasGlob
+ * @property {Object} globFilter
+ * @property {Function} filterPath
+ * @property {Function} filterDir
+ */
+
+const arrify = (value = []) => Array.isArray(value) ? value : [value];
+const flatten = (list, result = []) => {
+  list.forEach(item => {
+    if (Array.isArray(item)) {
+      flatten(item, result);
+    } else {
+      result.push(item);
+    }
+  });
+  return result;
+};
+
+const unifyPaths = (paths_) => {
+  /**
+   * @type {Array<String>}
+   */
+  const paths = flatten(arrify(paths_));
+  if (!paths.every(p => typeof p === STRING_TYPE)) {
+    throw new TypeError(`Non-string provided as watch path: ${paths}`);
+  }
+  return paths.map(normalizePathToUnix);
+};
+
+// If SLASH_SLASH occurs at the beginning of path, it is not replaced
+//     because "//StoragePC/DrivePool/Movies" is a valid network path
+const toUnix = (string) => {
+  let str = string.replace(BACK_SLASH_RE, SLASH);
+  let prepend = false;
+  if (str.startsWith(SLASH_SLASH)) {
+    prepend = true;
+  }
+  while (str.match(DOUBLE_SLASH_RE)) {
+    str = str.replace(DOUBLE_SLASH_RE, SLASH);
+  }
+  if (prepend) {
+    str = SLASH + str;
+  }
+  return str;
+};
+
+// Our version of upath.normalize
+// TODO: this is not equal to path-normalize module - investigate why
+const normalizePathToUnix = (path) => toUnix(sysPath.normalize(toUnix(path)));
+
+const normalizeIgnored = (cwd = EMPTY_STR) => (path) => {
+  if (typeof path !== STRING_TYPE) return path;
+  return normalizePathToUnix(sysPath.isAbsolute(path) ? path : sysPath.join(cwd, path));
+};
+
+const getAbsolutePath = (path, cwd) => {
+  if (sysPath.isAbsolute(path)) {
+    return path;
+  }
+  if (path.startsWith(BANG)) {
+    return BANG + sysPath.join(cwd, path.slice(1));
+  }
+  return sysPath.join(cwd, path);
+};
+
+const undef = (opts, key) => opts[key] === undefined;
+
+/**
+ * Directory entry.
+ * @property {Path} path
+ * @property {Set<Path>} items
+ */
+class DirEntry {
+  /**
+   * @param {Path} dir
+   * @param {Function} removeWatcher
+   */
+  constructor(dir, removeWatcher) {
+    this.path = dir;
+    this._removeWatcher = removeWatcher;
+    /** @type {Set<Path>} */
+    this.items = new Set();
+  }
+
+  add(item) {
+    const {items} = this;
+    if (!items) return;
+    if (item !== ONE_DOT && item !== TWO_DOTS) items.add(item);
+  }
+
+  async remove(item) {
+    const {items} = this;
+    if (!items) return;
+    items.delete(item);
+    if (items.size > 0) return;
+
+    const dir = this.path;
+    try {
+      await readdir(dir);
+    } catch (err) {
+      if (this._removeWatcher) {
+        this._removeWatcher(sysPath.dirname(dir), sysPath.basename(dir));
+      }
+    }
+  }
+
+  has(item) {
+    const {items} = this;
+    if (!items) return;
+    return items.has(item);
+  }
+
+  /**
+   * @returns {Array<String>}
+   */
+  getChildren() {
+    const {items} = this;
+    if (!items) return;
+    return [...items.values()];
+  }
+
+  dispose() {
+    this.items.clear();
+    delete this.path;
+    delete this._removeWatcher;
+    delete this.items;
+    Object.freeze(this);
+  }
+}
+
+const STAT_METHOD_F = 'stat';
+const STAT_METHOD_L = 'lstat';
+class WatchHelper {
+  constructor(path, watchPath, follow, fsw) {
+    this.fsw = fsw;
+    this.path = path = path.replace(REPLACER_RE, EMPTY_STR);
+    this.watchPath = watchPath;
+    this.fullWatchPath = sysPath.resolve(watchPath);
+    this.hasGlob = watchPath !== path;
+    /** @type {object|boolean} */
+    if (path === EMPTY_STR) this.hasGlob = false;
+    this.globSymlink = this.hasGlob && follow ? undefined : false;
+    this.globFilter = this.hasGlob ? anymatch(path, undefined, ANYMATCH_OPTS) : false;
+    this.dirParts = this.getDirParts(path);
+    this.dirParts.forEach((parts) => {
+      if (parts.length > 1) parts.pop();
+    });
+    this.followSymlinks = follow;
+    this.statMethod = follow ? STAT_METHOD_F : STAT_METHOD_L;
+  }
+
+  checkGlobSymlink(entry) {
+    // only need to resolve once
+    // first entry should always have entry.parentDir === EMPTY_STR
+    if (this.globSymlink === undefined) {
+      this.globSymlink = entry.fullParentDir === this.fullWatchPath ?
+        false : {realPath: entry.fullParentDir, linkPath: this.fullWatchPath};
+    }
+
+    if (this.globSymlink) {
+      return entry.fullPath.replace(this.globSymlink.realPath, this.globSymlink.linkPath);
+    }
+
+    return entry.fullPath;
+  }
+
+  entryPath(entry) {
+    return sysPath.join(this.watchPath,
+      sysPath.relative(this.watchPath, this.checkGlobSymlink(entry))
+    );
+  }
+
+  filterPath(entry) {
+    const {stats} = entry;
+    if (stats && stats.isSymbolicLink()) return this.filterDir(entry);
+    const resolvedPath = this.entryPath(entry);
+    const matchesGlob = this.hasGlob && typeof this.globFilter === FUNCTION_TYPE ?
+      this.globFilter(resolvedPath) : true;
+    return matchesGlob &&
+      this.fsw._isntIgnored(resolvedPath, stats) &&
+      this.fsw._hasReadPermissions(stats);
+  }
+
+  getDirParts(path) {
+    if (!this.hasGlob) return [];
+    const parts = [];
+    const expandedPath = path.includes(BRACE_START) ? braces.expand(path) : [path];
+    expandedPath.forEach((path) => {
+      parts.push(sysPath.relative(this.watchPath, path).split(SLASH_OR_BACK_SLASH_RE));
+    });
+    return parts;
+  }
+
+  filterDir(entry) {
+    if (this.hasGlob) {
+      const entryParts = this.getDirParts(this.checkGlobSymlink(entry));
+      let globstar = false;
+      this.unmatchedGlob = !this.dirParts.some((parts) => {
+        return parts.every((part, i) => {
+          if (part === GLOBSTAR) globstar = true;
+          return globstar || !entryParts[0][i] || anymatch(part, entryParts[0][i], ANYMATCH_OPTS);
+        });
+      });
+    }
+    return !this.unmatchedGlob && this.fsw._isntIgnored(this.entryPath(entry), entry.stats);
+  }
+}
+
+/**
+ * Watches files & directories for changes. Emitted events:
+ * `add`, `addDir`, `change`, `unlink`, `unlinkDir`, `all`, `error`
+ *
+ *     new FSWatcher()
+ *       .add(directories)
+ *       .on('add', path => log('File', path, 'was added'))
+ */
+class FSWatcher extends EventEmitter {
+// Not indenting methods for history sake; for now.
+constructor(_opts) {
+  super();
+
+  const opts = {};
+  if (_opts) Object.assign(opts, _opts); // for frozen objects
+
+  /** @type {Map<String, DirEntry>} */
+  this._watched = new Map();
+  /** @type {Map<String, Array>} */
+  this._closers = new Map();
+  /** @type {Set<String>} */
+  this._ignoredPaths = new Set();
+
+  /** @type {Map<ThrottleType, Map>} */
+  this._throttled = new Map();
+
+  /** @type {Map<Path, String|Boolean>} */
+  this._symlinkPaths = new Map();
+
+  this._streams = new Set();
+  this.closed = false;
+
+  // Set up default options.
+  if (undef(opts, 'persistent')) opts.persistent = true;
+  if (undef(opts, 'ignoreInitial')) opts.ignoreInitial = false;
+  if (undef(opts, 'ignorePermissionErrors')) opts.ignorePermissionErrors = false;
+  if (undef(opts, 'interval')) opts.interval = 100;
+  if (undef(opts, 'binaryInterval')) opts.binaryInterval = 300;
+  if (undef(opts, 'disableGlobbing')) opts.disableGlobbing = false;
+  opts.enableBinaryInterval = opts.binaryInterval !== opts.interval;
+
+  // Enable fsevents on OS X when polling isn't explicitly enabled.
+  if (undef(opts, 'useFsEvents')) opts.useFsEvents = !opts.usePolling;
+
+  // If we can't use fsevents, ensure the options reflect it's disabled.
+  const canUseFsEvents = FsEventsHandler.canUse();
+  if (!canUseFsEvents) opts.useFsEvents = false;
+
+  // Use polling on Mac if not using fsevents.
+  // Other platforms use non-polling fs_watch.
+  if (undef(opts, 'usePolling') && !opts.useFsEvents) {
+    opts.usePolling = isMacos;
+  }
+
+  // Always default to polling on IBM i because fs.watch() is not available on IBM i.
+  if(isIBMi) {
+    opts.usePolling = true;
+  }
+
+  // Global override (useful for end-developers that need to force polling for all
+  // instances of chokidar, regardless of usage/dependency depth)
+  const envPoll = process.env.CHOKIDAR_USEPOLLING;
+  if (envPoll !== undefined) {
+    const envLower = envPoll.toLowerCase();
+
+    if (envLower === 'false' || envLower === '0') {
+      opts.usePolling = false;
+    } else if (envLower === 'true' || envLower === '1') {
+      opts.usePolling = true;
+    } else {
+      opts.usePolling = !!envLower;
+    }
+  }
+  const envInterval = process.env.CHOKIDAR_INTERVAL;
+  if (envInterval) {
+    opts.interval = Number.parseInt(envInterval, 10);
+  }
+
+  // Editor atomic write normalization enabled by default with fs.watch
+  if (undef(opts, 'atomic')) opts.atomic = !opts.usePolling && !opts.useFsEvents;
+  if (opts.atomic) this._pendingUnlinks = new Map();
+
+  if (undef(opts, 'followSymlinks')) opts.followSymlinks = true;
+
+  if (undef(opts, 'awaitWriteFinish')) opts.awaitWriteFinish = false;
+  if (opts.awaitWriteFinish === true) opts.awaitWriteFinish = {};
+  const awf = opts.awaitWriteFinish;
+  if (awf) {
+    if (!awf.stabilityThreshold) awf.stabilityThreshold = 2000;
+    if (!awf.pollInterval) awf.pollInterval = 100;
+    this._pendingWrites = new Map();
+  }
+  if (opts.ignored) opts.ignored = arrify(opts.ignored);
+
+  let readyCalls = 0;
+  this._emitReady = () => {
+    readyCalls++;
+    if (readyCalls >= this._readyCount) {
+      this._emitReady = EMPTY_FN;
+      this._readyEmitted = true;
+      // use process.nextTick to allow time for listener to be bound
+      process.nextTick(() => this.emit(EV_READY));
+    }
+  };
+  this._emitRaw = (...args) => this.emit(EV_RAW, ...args);
+  this._readyEmitted = false;
+  this.options = opts;
+
+  // Initialize with proper watcher.
+  if (opts.useFsEvents) {
+    this._fsEventsHandler = new FsEventsHandler(this);
+  } else {
+    this._nodeFsHandler = new NodeFsHandler(this);
+  }
+
+  // You’re frozen when your heart’s not open.
+  Object.freeze(opts);
+}
+
+// Public methods
+
+/**
+ * Adds paths to be watched on an existing FSWatcher instance
+ * @param {Path|Array<Path>} paths_
+ * @param {String=} _origAdd private; for handling non-existent paths to be watched
+ * @param {Boolean=} _internal private; indicates a non-user add
+ * @returns {FSWatcher} for chaining
+ */
+add(paths_, _origAdd, _internal) {
+  const {cwd, disableGlobbing} = this.options;
+  this.closed = false;
+  let paths = unifyPaths(paths_);
+  if (cwd) {
+    paths = paths.map((path) => {
+      const absPath = getAbsolutePath(path, cwd);
+
+      // Check `path` instead of `absPath` because the cwd portion can't be a glob
+      if (disableGlobbing || !isGlob(path)) {
+        return absPath;
+      }
+      return normalizePath(absPath);
+    });
+  }
+
+  // set aside negated glob strings
+  paths = paths.filter((path) => {
+    if (path.startsWith(BANG)) {
+      this._ignoredPaths.add(path.slice(1));
+      return false;
+    }
+
+    // if a path is being added that was previously ignored, stop ignoring it
+    this._ignoredPaths.delete(path);
+    this._ignoredPaths.delete(path + SLASH_GLOBSTAR);
+
+    // reset the cached userIgnored anymatch fn
+    // to make ignoredPaths changes effective
+    this._userIgnored = undefined;
+
+    return true;
+  });
+
+  if (this.options.useFsEvents && this._fsEventsHandler) {
+    if (!this._readyCount) this._readyCount = paths.length;
+    if (this.options.persistent) this._readyCount += paths.length;
+    paths.forEach((path) => this._fsEventsHandler._addToFsEvents(path));
+  } else {
+    if (!this._readyCount) this._readyCount = 0;
+    this._readyCount += paths.length;
+    Promise.all(
+      paths.map(async path => {
+        const res = await this._nodeFsHandler._addToNodeFs(path, !_internal, 0, 0, _origAdd);
+        if (res) this._emitReady();
+        return res;
+      })
+    ).then(results => {
+      if (this.closed) return;
+      results.filter(item => item).forEach(item => {
+        this.add(sysPath.dirname(item), sysPath.basename(_origAdd || item));
+      });
+    });
+  }
+
+  return this;
+}
+
+/**
+ * Close watchers or start ignoring events from specified paths.
+ * @param {Path|Array<Path>} paths_ - string or array of strings, file/directory paths and/or globs
+ * @returns {FSWatcher} for chaining
+*/
+unwatch(paths_) {
+  if (this.closed) return this;
+  const paths = unifyPaths(paths_);
+  const {cwd} = this.options;
+
+  paths.forEach((path) => {
+    // convert to absolute path unless relative path already matches
+    if (!sysPath.isAbsolute(path) && !this._closers.has(path)) {
+      if (cwd) path = sysPath.join(cwd, path);
+      path = sysPath.resolve(path);
+    }
+
+    this._closePath(path);
+
+    this._ignoredPaths.add(path);
+    if (this._watched.has(path)) {
+      this._ignoredPaths.add(path + SLASH_GLOBSTAR);
+    }
+
+    // reset the cached userIgnored anymatch fn
+    // to make ignoredPaths changes effective
+    this._userIgnored = undefined;
+  });
+
+  return this;
+}
+
+/**
+ * Close watchers and remove all listeners from watched paths.
+ * @returns {Promise<void>}.
+*/
+close() {
+  if (this.closed) return this._closePromise;
+  this.closed = true;
+
+  // Memory management.
+  this.removeAllListeners();
+  const closers = [];
+  this._closers.forEach(closerList => closerList.forEach(closer => {
+    const promise = closer();
+    if (promise instanceof Promise) closers.push(promise);
+  }));
+  this._streams.forEach(stream => stream.destroy());
+  this._userIgnored = undefined;
+  this._readyCount = 0;
+  this._readyEmitted = false;
+  this._watched.forEach(dirent => dirent.dispose());
+  ['closers', 'watched', 'streams', 'symlinkPaths', 'throttled'].forEach(key => {
+    this[`_${key}`].clear();
+  });
+
+  this._closePromise = closers.length ? Promise.all(closers).then(() => undefined) : Promise.resolve();
+  return this._closePromise;
+}
+
+/**
+ * Expose list of watched paths
+ * @returns {Object} for chaining
+*/
+getWatched() {
+  const watchList = {};
+  this._watched.forEach((entry, dir) => {
+    const key = this.options.cwd ? sysPath.relative(this.options.cwd, dir) : dir;
+    watchList[key || ONE_DOT] = entry.getChildren().sort();
+  });
+  return watchList;
+}
+
+emitWithAll(event, args) {
+  this.emit(...args);
+  if (event !== EV_ERROR) this.emit(EV_ALL, ...args);
+}
+
+// Common helpers
+// --------------
+
+/**
+ * Normalize and emit events.
+ * Calling _emit DOES NOT MEAN emit() would be called!
+ * @param {EventName} event Type of event
+ * @param {Path} path File or directory path
+ * @param {*=} val1 arguments to be passed with event
+ * @param {*=} val2
+ * @param {*=} val3
+ * @returns the error if defined, otherwise the value of the FSWatcher instance's `closed` flag
+ */
+async _emit(event, path, val1, val2, val3) {
+  if (this.closed) return;
+
+  const opts = this.options;
+  if (isWindows) path = sysPath.normalize(path);
+  if (opts.cwd) path = sysPath.relative(opts.cwd, path);
+  /** @type Array<any> */
+  const args = [event, path];
+  if (val3 !== undefined) args.push(val1, val2, val3);
+  else if (val2 !== undefined) args.push(val1, val2);
+  else if (val1 !== undefined) args.push(val1);
+
+  const awf = opts.awaitWriteFinish;
+  let pw;
+  if (awf && (pw = this._pendingWrites.get(path))) {
+    pw.lastChange = new Date();
+    return this;
+  }
+
+  if (opts.atomic) {
+    if (event === EV_UNLINK) {
+      this._pendingUnlinks.set(path, args);
+      setTimeout(() => {
+        this._pendingUnlinks.forEach((entry, path) => {
+          this.emit(...entry);
+          this.emit(EV_ALL, ...entry);
+          this._pendingUnlinks.delete(path);
+        });
+      }, typeof opts.atomic === 'number' ? opts.atomic : 100);
+      return this;
+    }
+    if (event === EV_ADD && this._pendingUnlinks.has(path)) {
+      event = args[0] = EV_CHANGE;
+      this._pendingUnlinks.delete(path);
+    }
+  }
+
+  if (awf && (event === EV_ADD || event === EV_CHANGE) && this._readyEmitted) {
+    const awfEmit = (err, stats) => {
+      if (err) {
+        event = args[0] = EV_ERROR;
+        args[1] = err;
+        this.emitWithAll(event, args);
+      } else if (stats) {
+        // if stats doesn't exist the file must have been deleted
+        if (args.length > 2) {
+          args[2] = stats;
+        } else {
+          args.push(stats);
+        }
+        this.emitWithAll(event, args);
+      }
+    };
+
+    this._awaitWriteFinish(path, awf.stabilityThreshold, event, awfEmit);
+    return this;
+  }
+
+  if (event === EV_CHANGE) {
+    const isThrottled = !this._throttle(EV_CHANGE, path, 50);
+    if (isThrottled) return this;
+  }
+
+  if (opts.alwaysStat && val1 === undefined &&
+    (event === EV_ADD || event === EV_ADD_DIR || event === EV_CHANGE)
+  ) {
+    const fullPath = opts.cwd ? sysPath.join(opts.cwd, path) : path;
+    let stats;
+    try {
+      stats = await stat(fullPath);
+    } catch (err) {}
+    // Suppress event when fs_stat fails, to avoid sending undefined 'stat'
+    if (!stats || this.closed) return;
+    args.push(stats);
+  }
+  this.emitWithAll(event, args);
+
+  return this;
+}
+
+/**
+ * Common handler for errors
+ * @param {Error} error
+ * @returns {Error|Boolean} The error if defined, otherwise the value of the FSWatcher instance's `closed` flag
+ */
+_handleError(error) {
+  const code = error && error.code;
+  if (error && code !== 'ENOENT' && code !== 'ENOTDIR' &&
+    (!this.options.ignorePermissionErrors || (code !== 'EPERM' && code !== 'EACCES'))
+  ) {
+    this.emit(EV_ERROR, error);
+  }
+  return error || this.closed;
+}
+
+/**
+ * Helper utility for throttling
+ * @param {ThrottleType} actionType type being throttled
+ * @param {Path} path being acted upon
+ * @param {Number} timeout duration of time to suppress duplicate actions
+ * @returns {Object|false} tracking object or false if action should be suppressed
+ */
+_throttle(actionType, path, timeout) {
+  if (!this._throttled.has(actionType)) {
+    this._throttled.set(actionType, new Map());
+  }
+
+  /** @type {Map<Path, Object>} */
+  const action = this._throttled.get(actionType);
+  /** @type {Object} */
+  const actionPath = action.get(path);
+
+  if (actionPath) {
+    actionPath.count++;
+    return false;
+  }
+
+  let timeoutObject;
+  const clear = () => {
+    const item = action.get(path);
+    const count = item ? item.count : 0;
+    action.delete(path);
+    clearTimeout(timeoutObject);
+    if (item) clearTimeout(item.timeoutObject);
+    return count;
+  };
+  timeoutObject = setTimeout(clear, timeout);
+  const thr = {timeoutObject, clear, count: 0};
+  action.set(path, thr);
+  return thr;
+}
+
+_incrReadyCount() {
+  return this._readyCount++;
+}
+
+/**
+ * Awaits write operation to finish.
+ * Polls a newly created file for size variations. When files size does not change for 'threshold' milliseconds calls callback.
+ * @param {Path} path being acted upon
+ * @param {Number} threshold Time in milliseconds a file size must be fixed before acknowledging write OP is finished
+ * @param {EventName} event
+ * @param {Function} awfEmit Callback to be called when ready for event to be emitted.
+ */
+_awaitWriteFinish(path, threshold, event, awfEmit) {
+  let timeoutHandler;
+
+  let fullPath = path;
+  if (this.options.cwd && !sysPath.isAbsolute(path)) {
+    fullPath = sysPath.join(this.options.cwd, path);
+  }
+
+  const now = new Date();
+
+  const awaitWriteFinish = (prevStat) => {
+    fs.stat(fullPath, (err, curStat) => {
+      if (err || !this._pendingWrites.has(path)) {
+        if (err && err.code !== 'ENOENT') awfEmit(err);
+        return;
+      }
+
+      const now = Number(new Date());
+
+      if (prevStat && curStat.size !== prevStat.size) {
+        this._pendingWrites.get(path).lastChange = now;
+      }
+      const pw = this._pendingWrites.get(path);
+      const df = now - pw.lastChange;
+
+      if (df >= threshold) {
+        this._pendingWrites.delete(path);
+        awfEmit(undefined, curStat);
+      } else {
+        timeoutHandler = setTimeout(
+          awaitWriteFinish,
+          this.options.awaitWriteFinish.pollInterval,
+          curStat
+        );
+      }
+    });
+  };
+
+  if (!this._pendingWrites.has(path)) {
+    this._pendingWrites.set(path, {
+      lastChange: now,
+      cancelWait: () => {
+        this._pendingWrites.delete(path);
+        clearTimeout(timeoutHandler);
+        return event;
+      }
+    });
+    timeoutHandler = setTimeout(
+      awaitWriteFinish,
+      this.options.awaitWriteFinish.pollInterval
+    );
+  }
+}
+
+_getGlobIgnored() {
+  return [...this._ignoredPaths.values()];
+}
+
+/**
+ * Determines whether user has asked to ignore this path.
+ * @param {Path} path filepath or dir
+ * @param {fs.Stats=} stats result of fs.stat
+ * @returns {Boolean}
+ */
+_isIgnored(path, stats) {
+  if (this.options.atomic && DOT_RE.test(path)) return true;
+  if (!this._userIgnored) {
+    const {cwd} = this.options;
+    const ign = this.options.ignored;
+
+    const ignored = ign && ign.map(normalizeIgnored(cwd));
+    const paths = arrify(ignored)
+      .filter((path) => typeof path === STRING_TYPE && !isGlob(path))
+      .map((path) => path + SLASH_GLOBSTAR);
+    const list = this._getGlobIgnored().map(normalizeIgnored(cwd)).concat(ignored, paths);
+    this._userIgnored = anymatch(list, undefined, ANYMATCH_OPTS);
+  }
+
+  return this._userIgnored([path, stats]);
+}
+
+_isntIgnored(path, stat) {
+  return !this._isIgnored(path, stat);
+}
+
+/**
+ * Provides a set of common helpers and properties relating to symlink and glob handling.
+ * @param {Path} path file, directory, or glob pattern being watched
+ * @param {Number=} depth at any depth > 0, this isn't a glob
+ * @returns {WatchHelper} object containing helpers for this path
+ */
+_getWatchHelpers(path, depth) {
+  const watchPath = depth || this.options.disableGlobbing || !isGlob(path) ? path : globParent(path);
+  const follow = this.options.followSymlinks;
+
+  return new WatchHelper(path, watchPath, follow, this);
+}
+
+// Directory helpers
+// -----------------
+
+/**
+ * Provides directory tracking objects
+ * @param {String} directory path of the directory
+ * @returns {DirEntry} the directory's tracking object
+ */
+_getWatchedDir(directory) {
+  if (!this._boundRemove) this._boundRemove = this._remove.bind(this);
+  const dir = sysPath.resolve(directory);
+  if (!this._watched.has(dir)) this._watched.set(dir, new DirEntry(dir, this._boundRemove));
+  return this._watched.get(dir);
+}
+
+// File helpers
+// ------------
+
+/**
+ * Check for read permissions.
+ * Based on this answer on SO: https://stackoverflow.com/a/11781404/1358405
+ * @param {fs.Stats} stats - object, result of fs_stat
+ * @returns {Boolean} indicates whether the file can be read
+*/
+_hasReadPermissions(stats) {
+  if (this.options.ignorePermissionErrors) return true;
+
+  // stats.mode may be bigint
+  const md = stats && Number.parseInt(stats.mode, 10);
+  const st = md & 0o777;
+  const it = Number.parseInt(st.toString(8)[0], 10);
+  return Boolean(4 & it);
+}
+
+/**
+ * Handles emitting unlink events for
+ * files and directories, and via recursion, for
+ * files and directories within directories that are unlinked
+ * @param {String} directory within which the following item is located
+ * @param {String} item      base path of item/directory
+ * @returns {void}
+*/
+_remove(directory, item, isDirectory) {
+  // if what is being deleted is a directory, get that directory's paths
+  // for recursive deleting and cleaning of watched object
+  // if it is not a directory, nestedDirectoryChildren will be empty array
+  const path = sysPath.join(directory, item);
+  const fullPath = sysPath.resolve(path);
+  isDirectory = isDirectory != null
+    ? isDirectory
+    : this._watched.has(path) || this._watched.has(fullPath);
+
+  // prevent duplicate handling in case of arriving here nearly simultaneously
+  // via multiple paths (such as _handleFile and _handleDir)
+  if (!this._throttle('remove', path, 100)) return;
+
+  // if the only watched file is removed, watch for its return
+  if (!isDirectory && !this.options.useFsEvents && this._watched.size === 1) {
+    this.add(directory, item, true);
+  }
+
+  // This will create a new entry in the watched object in either case
+  // so we got to do the directory check beforehand
+  const wp = this._getWatchedDir(path);
+  const nestedDirectoryChildren = wp.getChildren();
+
+  // Recursively remove children directories / files.
+  nestedDirectoryChildren.forEach(nested => this._remove(path, nested));
+
+  // Check if item was on the watched list and remove it
+  const parent = this._getWatchedDir(directory);
+  const wasTracked = parent.has(item);
+  parent.remove(item);
+
+  // Fixes issue #1042 -> Relative paths were detected and added as symlinks
+  // (https://github.com/paulmillr/chokidar/blob/e1753ddbc9571bdc33b4a4af172d52cb6e611c10/lib/nodefs-handler.js#L612),
+  // but never removed from the map in case the path was deleted.
+  // This leads to an incorrect state if the path was recreated:
+  // https://github.com/paulmillr/chokidar/blob/e1753ddbc9571bdc33b4a4af172d52cb6e611c10/lib/nodefs-handler.js#L553
+  if (this._symlinkPaths.has(fullPath)) {
+    this._symlinkPaths.delete(fullPath);
+  }
+
+  // If we wait for this file to be fully written, cancel the wait.
+  let relPath = path;
+  if (this.options.cwd) relPath = sysPath.relative(this.options.cwd, path);
+  if (this.options.awaitWriteFinish && this._pendingWrites.has(relPath)) {
+    const event = this._pendingWrites.get(relPath).cancelWait();
+    if (event === EV_ADD) return;
+  }
+
+  // The Entry will either be a directory that just got removed
+  // or a bogus entry to a file, in either case we have to remove it
+  this._watched.delete(path);
+  this._watched.delete(fullPath);
+  const eventName = isDirectory ? EV_UNLINK_DIR : EV_UNLINK;
+  if (wasTracked && !this._isIgnored(path)) this._emit(eventName, path);
+
+  // Avoid conflicts if we later create another file with the same name
+  if (!this.options.useFsEvents) {
+    this._closePath(path);
+  }
+}
+
+/**
+ * Closes all watchers for a path
+ * @param {Path} path
+ */
+_closePath(path) {
+  this._closeFile(path)
+  const dir = sysPath.dirname(path);
+  this._getWatchedDir(dir).remove(sysPath.basename(path));
+}
+
+/**
+ * Closes only file-specific watchers
+ * @param {Path} path
+ */
+_closeFile(path) {
+  const closers = this._closers.get(path);
+  if (!closers) return;
+  closers.forEach(closer => closer());
+  this._closers.delete(path);
+}
+
+/**
+ *
+ * @param {Path} path
+ * @param {Function} closer
+ */
+_addPathCloser(path, closer) {
+  if (!closer) return;
+  let list = this._closers.get(path);
+  if (!list) {
+    list = [];
+    this._closers.set(path, list);
+  }
+  list.push(closer);
+}
+
+_readdirp(root, opts) {
+  if (this.closed) return;
+  const options = {type: EV_ALL, alwaysStat: true, lstat: true, ...opts};
+  let stream = readdirp(root, options);
+  this._streams.add(stream);
+  stream.once(STR_CLOSE, () => {
+    stream = undefined;
+  });
+  stream.once(STR_END, () => {
+    if (stream) {
+      this._streams.delete(stream);
+      stream = undefined;
+    }
+  });
+  return stream;
+}
+
+}
+
+// Export FSWatcher class
+exports.FSWatcher = FSWatcher;
+
+/**
+ * Instantiates watcher with paths to be tracked.
+ * @param {String|Array<String>} paths file/directory paths and/or globs
+ * @param {Object=} options chokidar opts
+ * @returns an instance of FSWatcher for chaining.
+ */
+const watch = (paths, options) => {
+  const watcher = new FSWatcher(options);
+  watcher.add(paths);
+  return watcher;
+};
+
+exports.watch = watch;
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/lib/constants.js b/src/main/webapp/com/css/sass/node_modules/chokidar/lib/constants.js
new file mode 100644
index 00000000..4743865d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/lib/constants.js
@@ -0,0 +1,66 @@
+'use strict';
+
+const {sep} = require('path');
+const {platform} = process;
+const os = require('os');
+
+exports.EV_ALL = 'all';
+exports.EV_READY = 'ready';
+exports.EV_ADD = 'add';
+exports.EV_CHANGE = 'change';
+exports.EV_ADD_DIR = 'addDir';
+exports.EV_UNLINK = 'unlink';
+exports.EV_UNLINK_DIR = 'unlinkDir';
+exports.EV_RAW = 'raw';
+exports.EV_ERROR = 'error';
+
+exports.STR_DATA = 'data';
+exports.STR_END = 'end';
+exports.STR_CLOSE = 'close';
+
+exports.FSEVENT_CREATED = 'created';
+exports.FSEVENT_MODIFIED = 'modified';
+exports.FSEVENT_DELETED = 'deleted';
+exports.FSEVENT_MOVED = 'moved';
+exports.FSEVENT_CLONED = 'cloned';
+exports.FSEVENT_UNKNOWN = 'unknown';
+exports.FSEVENT_FLAG_MUST_SCAN_SUBDIRS = 1;
+exports.FSEVENT_TYPE_FILE = 'file';
+exports.FSEVENT_TYPE_DIRECTORY = 'directory';
+exports.FSEVENT_TYPE_SYMLINK = 'symlink';
+
+exports.KEY_LISTENERS = 'listeners';
+exports.KEY_ERR = 'errHandlers';
+exports.KEY_RAW = 'rawEmitters';
+exports.HANDLER_KEYS = [exports.KEY_LISTENERS, exports.KEY_ERR, exports.KEY_RAW];
+
+exports.DOT_SLASH = `.${sep}`;
+
+exports.BACK_SLASH_RE = /\\/g;
+exports.DOUBLE_SLASH_RE = /\/\//;
+exports.SLASH_OR_BACK_SLASH_RE = /[/\\]/;
+exports.DOT_RE = /\..*\.(sw[px])$|~$|\.subl.*\.tmp/;
+exports.REPLACER_RE = /^\.[/\\]/;
+
+exports.SLASH = '/';
+exports.SLASH_SLASH = '//';
+exports.BRACE_START = '{';
+exports.BANG = '!';
+exports.ONE_DOT = '.';
+exports.TWO_DOTS = '..';
+exports.STAR = '*';
+exports.GLOBSTAR = '**';
+exports.ROOT_GLOBSTAR = '/**/*';
+exports.SLASH_GLOBSTAR = '/**';
+exports.DIR_SUFFIX = 'Dir';
+exports.ANYMATCH_OPTS = {dot: true};
+exports.STRING_TYPE = 'string';
+exports.FUNCTION_TYPE = 'function';
+exports.EMPTY_STR = '';
+exports.EMPTY_FN = () => {};
+exports.IDENTITY_FN = val => val;
+
+exports.isWindows = platform === 'win32';
+exports.isMacos = platform === 'darwin';
+exports.isLinux = platform === 'linux';
+exports.isIBMi = os.type() === 'OS400';
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/lib/fsevents-handler.js b/src/main/webapp/com/css/sass/node_modules/chokidar/lib/fsevents-handler.js
new file mode 100644
index 00000000..fe29393c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/lib/fsevents-handler.js
@@ -0,0 +1,526 @@
+'use strict';
+
+const fs = require('fs');
+const sysPath = require('path');
+const { promisify } = require('util');
+
+let fsevents;
+try {
+  fsevents = require('fsevents');
+} catch (error) {
+  if (process.env.CHOKIDAR_PRINT_FSEVENTS_REQUIRE_ERROR) console.error(error);
+}
+
+if (fsevents) {
+  // TODO: real check
+  const mtch = process.version.match(/v(\d+)\.(\d+)/);
+  if (mtch && mtch[1] && mtch[2]) {
+    const maj = Number.parseInt(mtch[1], 10);
+    const min = Number.parseInt(mtch[2], 10);
+    if (maj === 8 && min < 16) {
+      fsevents = undefined;
+    }
+  }
+}
+
+const {
+  EV_ADD,
+  EV_CHANGE,
+  EV_ADD_DIR,
+  EV_UNLINK,
+  EV_ERROR,
+  STR_DATA,
+  STR_END,
+  FSEVENT_CREATED,
+  FSEVENT_MODIFIED,
+  FSEVENT_DELETED,
+  FSEVENT_MOVED,
+  // FSEVENT_CLONED,
+  FSEVENT_UNKNOWN,
+  FSEVENT_FLAG_MUST_SCAN_SUBDIRS,
+  FSEVENT_TYPE_FILE,
+  FSEVENT_TYPE_DIRECTORY,
+  FSEVENT_TYPE_SYMLINK,
+
+  ROOT_GLOBSTAR,
+  DIR_SUFFIX,
+  DOT_SLASH,
+  FUNCTION_TYPE,
+  EMPTY_FN,
+  IDENTITY_FN
+} = require('./constants');
+
+const Depth = (value) => isNaN(value) ? {} : {depth: value};
+
+const stat = promisify(fs.stat);
+const lstat = promisify(fs.lstat);
+const realpath = promisify(fs.realpath);
+
+const statMethods = { stat, lstat };
+
+/**
+ * @typedef {String} Path
+ */
+
+/**
+ * @typedef {Object} FsEventsWatchContainer
+ * @property {Set<Function>} listeners
+ * @property {Function} rawEmitter
+ * @property {{stop: Function}} watcher
+ */
+
+// fsevents instance helper functions
+/**
+ * Object to hold per-process fsevents instances (may be shared across chokidar FSWatcher instances)
+ * @type {Map<Path,FsEventsWatchContainer>}
+ */
+const FSEventsWatchers = new Map();
+
+// Threshold of duplicate path prefixes at which to start
+// consolidating going forward
+const consolidateThreshhold = 10;
+
+const wrongEventFlags = new Set([
+  69888, 70400, 71424, 72704, 73472, 131328, 131840, 262912
+]);
+
+/**
+ * Instantiates the fsevents interface
+ * @param {Path} path path to be watched
+ * @param {Function} callback called when fsevents is bound and ready
+ * @returns {{stop: Function}} new fsevents instance
+ */
+const createFSEventsInstance = (path, callback) => {
+  const stop = fsevents.watch(path, callback);
+  return {stop};
+};
+
+/**
+ * Instantiates the fsevents interface or binds listeners to an existing one covering
+ * the same file tree.
+ * @param {Path} path           - to be watched
+ * @param {Path} realPath       - real path for symlinks
+ * @param {Function} listener   - called when fsevents emits events
+ * @param {Function} rawEmitter - passes data to listeners of the 'raw' event
+ * @returns {Function} closer
+ */
+function setFSEventsListener(path, realPath, listener, rawEmitter) {
+  let watchPath = sysPath.extname(realPath) ? sysPath.dirname(realPath) : realPath;
+
+  const parentPath = sysPath.dirname(watchPath);
+  let cont = FSEventsWatchers.get(watchPath);
+
+  // If we've accumulated a substantial number of paths that
+  // could have been consolidated by watching one directory
+  // above the current one, create a watcher on the parent
+  // path instead, so that we do consolidate going forward.
+  if (couldConsolidate(parentPath)) {
+    watchPath = parentPath;
+  }
+
+  const resolvedPath = sysPath.resolve(path);
+  const hasSymlink = resolvedPath !== realPath;
+
+  const filteredListener = (fullPath, flags, info) => {
+    if (hasSymlink) fullPath = fullPath.replace(realPath, resolvedPath);
+    if (
+      fullPath === resolvedPath ||
+      !fullPath.indexOf(resolvedPath + sysPath.sep)
+    ) listener(fullPath, flags, info);
+  };
+
+  // check if there is already a watcher on a parent path
+  // modifies `watchPath` to the parent path when it finds a match
+  let watchedParent = false;
+  for (const watchedPath of FSEventsWatchers.keys()) {
+    if (realPath.indexOf(sysPath.resolve(watchedPath) + sysPath.sep) === 0) {
+      watchPath = watchedPath;
+      cont = FSEventsWatchers.get(watchPath);
+      watchedParent = true;
+      break;
+    }
+  }
+
+  if (cont || watchedParent) {
+    cont.listeners.add(filteredListener);
+  } else {
+    cont = {
+      listeners: new Set([filteredListener]),
+      rawEmitter,
+      watcher: createFSEventsInstance(watchPath, (fullPath, flags) => {
+        if (!cont.listeners.size) return;
+        if (flags & FSEVENT_FLAG_MUST_SCAN_SUBDIRS) return;
+        const info = fsevents.getInfo(fullPath, flags);
+        cont.listeners.forEach(list => {
+          list(fullPath, flags, info);
+        });
+
+        cont.rawEmitter(info.event, fullPath, info);
+      })
+    };
+    FSEventsWatchers.set(watchPath, cont);
+  }
+
+  // removes this instance's listeners and closes the underlying fsevents
+  // instance if there are no more listeners left
+  return () => {
+    const lst = cont.listeners;
+
+    lst.delete(filteredListener);
+    if (!lst.size) {
+      FSEventsWatchers.delete(watchPath);
+      if (cont.watcher) return cont.watcher.stop().then(() => {
+        cont.rawEmitter = cont.watcher = undefined;
+        Object.freeze(cont);
+      });
+    }
+  };
+}
+
+// Decide whether or not we should start a new higher-level
+// parent watcher
+const couldConsolidate = (path) => {
+  let count = 0;
+  for (const watchPath of FSEventsWatchers.keys()) {
+    if (watchPath.indexOf(path) === 0) {
+      count++;
+      if (count >= consolidateThreshhold) {
+        return true;
+      }
+    }
+  }
+
+  return false;
+};
+
+// returns boolean indicating whether fsevents can be used
+const canUse = () => fsevents && FSEventsWatchers.size < 128;
+
+// determines subdirectory traversal levels from root to path
+const calcDepth = (path, root) => {
+  let i = 0;
+  while (!path.indexOf(root) && (path = sysPath.dirname(path)) !== root) i++;
+  return i;
+};
+
+// returns boolean indicating whether the fsevents' event info has the same type
+// as the one returned by fs.stat
+const sameTypes = (info, stats) => (
+  info.type === FSEVENT_TYPE_DIRECTORY && stats.isDirectory() ||
+  info.type === FSEVENT_TYPE_SYMLINK && stats.isSymbolicLink() ||
+  info.type === FSEVENT_TYPE_FILE && stats.isFile()
+)
+
+/**
+ * @mixin
+ */
+class FsEventsHandler {
+
+/**
+ * @param {import('../index').FSWatcher} fsw
+ */
+constructor(fsw) {
+  this.fsw = fsw;
+}
+checkIgnored(path, stats) {
+  const ipaths = this.fsw._ignoredPaths;
+  if (this.fsw._isIgnored(path, stats)) {
+    ipaths.add(path);
+    if (stats && stats.isDirectory()) {
+      ipaths.add(path + ROOT_GLOBSTAR);
+    }
+    return true;
+  }
+
+  ipaths.delete(path);
+  ipaths.delete(path + ROOT_GLOBSTAR);
+}
+
+addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts) {
+  const event = watchedDir.has(item) ? EV_CHANGE : EV_ADD;
+  this.handleEvent(event, path, fullPath, realPath, parent, watchedDir, item, info, opts);
+}
+
+async checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts) {
+  try {
+    const stats = await stat(path)
+    if (this.fsw.closed) return;
+    if (sameTypes(info, stats)) {
+      this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
+    } else {
+      this.handleEvent(EV_UNLINK, path, fullPath, realPath, parent, watchedDir, item, info, opts);
+    }
+  } catch (error) {
+    if (error.code === 'EACCES') {
+      this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
+    } else {
+      this.handleEvent(EV_UNLINK, path, fullPath, realPath, parent, watchedDir, item, info, opts);
+    }
+  }
+}
+
+handleEvent(event, path, fullPath, realPath, parent, watchedDir, item, info, opts) {
+  if (this.fsw.closed || this.checkIgnored(path)) return;
+
+  if (event === EV_UNLINK) {
+    const isDirectory = info.type === FSEVENT_TYPE_DIRECTORY
+    // suppress unlink events on never before seen files
+    if (isDirectory || watchedDir.has(item)) {
+      this.fsw._remove(parent, item, isDirectory);
+    }
+  } else {
+    if (event === EV_ADD) {
+      // track new directories
+      if (info.type === FSEVENT_TYPE_DIRECTORY) this.fsw._getWatchedDir(path);
+
+      if (info.type === FSEVENT_TYPE_SYMLINK && opts.followSymlinks) {
+        // push symlinks back to the top of the stack to get handled
+        const curDepth = opts.depth === undefined ?
+          undefined : calcDepth(fullPath, realPath) + 1;
+        return this._addToFsEvents(path, false, true, curDepth);
+      }
+
+      // track new paths
+      // (other than symlinks being followed, which will be tracked soon)
+      this.fsw._getWatchedDir(parent).add(item);
+    }
+    /**
+     * @type {'add'|'addDir'|'unlink'|'unlinkDir'}
+     */
+    const eventName = info.type === FSEVENT_TYPE_DIRECTORY ? event + DIR_SUFFIX : event;
+    this.fsw._emit(eventName, path);
+    if (eventName === EV_ADD_DIR) this._addToFsEvents(path, false, true);
+  }
+}
+
+/**
+ * Handle symlinks encountered during directory scan
+ * @param {String} watchPath  - file/dir path to be watched with fsevents
+ * @param {String} realPath   - real path (in case of symlinks)
+ * @param {Function} transform  - path transformer
+ * @param {Function} globFilter - path filter in case a glob pattern was provided
+ * @returns {Function} closer for the watcher instance
+*/
+_watchWithFsEvents(watchPath, realPath, transform, globFilter) {
+  if (this.fsw.closed || this.fsw._isIgnored(watchPath)) return;
+  const opts = this.fsw.options;
+  const watchCallback = async (fullPath, flags, info) => {
+    if (this.fsw.closed) return;
+    if (
+      opts.depth !== undefined &&
+      calcDepth(fullPath, realPath) > opts.depth
+    ) return;
+    const path = transform(sysPath.join(
+      watchPath, sysPath.relative(watchPath, fullPath)
+    ));
+    if (globFilter && !globFilter(path)) return;
+    // ensure directories are tracked
+    const parent = sysPath.dirname(path);
+    const item = sysPath.basename(path);
+    const watchedDir = this.fsw._getWatchedDir(
+      info.type === FSEVENT_TYPE_DIRECTORY ? path : parent
+    );
+
+    // correct for wrong events emitted
+    if (wrongEventFlags.has(flags) || info.event === FSEVENT_UNKNOWN) {
+      if (typeof opts.ignored === FUNCTION_TYPE) {
+        let stats;
+        try {
+          stats = await stat(path);
+        } catch (error) {}
+        if (this.fsw.closed) return;
+        if (this.checkIgnored(path, stats)) return;
+        if (sameTypes(info, stats)) {
+          this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
+        } else {
+          this.handleEvent(EV_UNLINK, path, fullPath, realPath, parent, watchedDir, item, info, opts);
+        }
+      } else {
+        this.checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts);
+      }
+    } else {
+      switch (info.event) {
+      case FSEVENT_CREATED:
+      case FSEVENT_MODIFIED:
+        return this.addOrChange(path, fullPath, realPath, parent, watchedDir, item, info, opts);
+      case FSEVENT_DELETED:
+      case FSEVENT_MOVED:
+        return this.checkExists(path, fullPath, realPath, parent, watchedDir, item, info, opts);
+      }
+    }
+  };
+
+  const closer = setFSEventsListener(
+    watchPath,
+    realPath,
+    watchCallback,
+    this.fsw._emitRaw
+  );
+
+  this.fsw._emitReady();
+  return closer;
+}
+
+/**
+ * Handle symlinks encountered during directory scan
+ * @param {String} linkPath path to symlink
+ * @param {String} fullPath absolute path to the symlink
+ * @param {Function} transform pre-existing path transformer
+ * @param {Number} curDepth level of subdirectories traversed to where symlink is
+ * @returns {Promise<void>}
+ */
+async _handleFsEventsSymlink(linkPath, fullPath, transform, curDepth) {
+  // don't follow the same symlink more than once
+  if (this.fsw.closed || this.fsw._symlinkPaths.has(fullPath)) return;
+
+  this.fsw._symlinkPaths.set(fullPath, true);
+  this.fsw._incrReadyCount();
+
+  try {
+    const linkTarget = await realpath(linkPath);
+    if (this.fsw.closed) return;
+    if (this.fsw._isIgnored(linkTarget)) {
+      return this.fsw._emitReady();
+    }
+
+    this.fsw._incrReadyCount();
+
+    // add the linkTarget for watching with a wrapper for transform
+    // that causes emitted paths to incorporate the link's path
+    this._addToFsEvents(linkTarget || linkPath, (path) => {
+      let aliasedPath = linkPath;
+      if (linkTarget && linkTarget !== DOT_SLASH) {
+        aliasedPath = path.replace(linkTarget, linkPath);
+      } else if (path !== DOT_SLASH) {
+        aliasedPath = sysPath.join(linkPath, path);
+      }
+      return transform(aliasedPath);
+    }, false, curDepth);
+  } catch(error) {
+    if (this.fsw._handleError(error)) {
+      return this.fsw._emitReady();
+    }
+  }
+}
+
+/**
+ *
+ * @param {Path} newPath
+ * @param {fs.Stats} stats
+ */
+emitAdd(newPath, stats, processPath, opts, forceAdd) {
+  const pp = processPath(newPath);
+  const isDir = stats.isDirectory();
+  const dirObj = this.fsw._getWatchedDir(sysPath.dirname(pp));
+  const base = sysPath.basename(pp);
+
+  // ensure empty dirs get tracked
+  if (isDir) this.fsw._getWatchedDir(pp);
+  if (dirObj.has(base)) return;
+  dirObj.add(base);
+
+  if (!opts.ignoreInitial || forceAdd === true) {
+    this.fsw._emit(isDir ? EV_ADD_DIR : EV_ADD, pp, stats);
+  }
+}
+
+initWatch(realPath, path, wh, processPath) {
+  if (this.fsw.closed) return;
+  const closer = this._watchWithFsEvents(
+    wh.watchPath,
+    sysPath.resolve(realPath || wh.watchPath),
+    processPath,
+    wh.globFilter
+  );
+  this.fsw._addPathCloser(path, closer);
+}
+
+/**
+ * Handle added path with fsevents
+ * @param {String} path file/dir path or glob pattern
+ * @param {Function|Boolean=} transform converts working path to what the user expects
+ * @param {Boolean=} forceAdd ensure add is emitted
+ * @param {Number=} priorDepth Level of subdirectories already traversed.
+ * @returns {Promise<void>}
+ */
+async _addToFsEvents(path, transform, forceAdd, priorDepth) {
+  if (this.fsw.closed) {
+    return;
+  }
+  const opts = this.fsw.options;
+  const processPath = typeof transform === FUNCTION_TYPE ? transform : IDENTITY_FN;
+
+  const wh = this.fsw._getWatchHelpers(path);
+
+  // evaluate what is at the path we're being asked to watch
+  try {
+    const stats = await statMethods[wh.statMethod](wh.watchPath);
+    if (this.fsw.closed) return;
+    if (this.fsw._isIgnored(wh.watchPath, stats)) {
+      throw null;
+    }
+    if (stats.isDirectory()) {
+      // emit addDir unless this is a glob parent
+      if (!wh.globFilter) this.emitAdd(processPath(path), stats, processPath, opts, forceAdd);
+
+      // don't recurse further if it would exceed depth setting
+      if (priorDepth && priorDepth > opts.depth) return;
+
+      // scan the contents of the dir
+      this.fsw._readdirp(wh.watchPath, {
+        fileFilter: entry => wh.filterPath(entry),
+        directoryFilter: entry => wh.filterDir(entry),
+        ...Depth(opts.depth - (priorDepth || 0))
+      }).on(STR_DATA, (entry) => {
+        // need to check filterPath on dirs b/c filterDir is less restrictive
+        if (this.fsw.closed) {
+          return;
+        }
+        if (entry.stats.isDirectory() && !wh.filterPath(entry)) return;
+
+        const joinedPath = sysPath.join(wh.watchPath, entry.path);
+        const {fullPath} = entry;
+
+        if (wh.followSymlinks && entry.stats.isSymbolicLink()) {
+          // preserve the current depth here since it can't be derived from
+          // real paths past the symlink
+          const curDepth = opts.depth === undefined ?
+            undefined : calcDepth(joinedPath, sysPath.resolve(wh.watchPath)) + 1;
+
+          this._handleFsEventsSymlink(joinedPath, fullPath, processPath, curDepth);
+        } else {
+          this.emitAdd(joinedPath, entry.stats, processPath, opts, forceAdd);
+        }
+      }).on(EV_ERROR, EMPTY_FN).on(STR_END, () => {
+        this.fsw._emitReady();
+      });
+    } else {
+      this.emitAdd(wh.watchPath, stats, processPath, opts, forceAdd);
+      this.fsw._emitReady();
+    }
+  } catch (error) {
+    if (!error || this.fsw._handleError(error)) {
+      // TODO: Strange thing: "should not choke on an ignored watch path" will be failed without 2 ready calls -__-
+      this.fsw._emitReady();
+      this.fsw._emitReady();
+    }
+  }
+
+  if (opts.persistent && forceAdd !== true) {
+    if (typeof transform === FUNCTION_TYPE) {
+      // realpath has already been resolved
+      this.initWatch(undefined, path, wh, processPath);
+    } else {
+      let realPath;
+      try {
+        realPath = await realpath(wh.watchPath);
+      } catch (e) {}
+      this.initWatch(realPath, path, wh, processPath);
+    }
+  }
+}
+
+}
+
+module.exports = FsEventsHandler;
+module.exports.canUse = canUse;
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/lib/nodefs-handler.js b/src/main/webapp/com/css/sass/node_modules/chokidar/lib/nodefs-handler.js
new file mode 100644
index 00000000..199cfe9f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/lib/nodefs-handler.js
@@ -0,0 +1,654 @@
+'use strict';
+
+const fs = require('fs');
+const sysPath = require('path');
+const { promisify } = require('util');
+const isBinaryPath = require('is-binary-path');
+const {
+  isWindows,
+  isLinux,
+  EMPTY_FN,
+  EMPTY_STR,
+  KEY_LISTENERS,
+  KEY_ERR,
+  KEY_RAW,
+  HANDLER_KEYS,
+  EV_CHANGE,
+  EV_ADD,
+  EV_ADD_DIR,
+  EV_ERROR,
+  STR_DATA,
+  STR_END,
+  BRACE_START,
+  STAR
+} = require('./constants');
+
+const THROTTLE_MODE_WATCH = 'watch';
+
+const open = promisify(fs.open);
+const stat = promisify(fs.stat);
+const lstat = promisify(fs.lstat);
+const close = promisify(fs.close);
+const fsrealpath = promisify(fs.realpath);
+
+const statMethods = { lstat, stat };
+
+// TODO: emit errors properly. Example: EMFILE on Macos.
+const foreach = (val, fn) => {
+  if (val instanceof Set) {
+    val.forEach(fn);
+  } else {
+    fn(val);
+  }
+};
+
+const addAndConvert = (main, prop, item) => {
+  let container = main[prop];
+  if (!(container instanceof Set)) {
+    main[prop] = container = new Set([container]);
+  }
+  container.add(item);
+};
+
+const clearItem = cont => key => {
+  const set = cont[key];
+  if (set instanceof Set) {
+    set.clear();
+  } else {
+    delete cont[key];
+  }
+};
+
+const delFromSet = (main, prop, item) => {
+  const container = main[prop];
+  if (container instanceof Set) {
+    container.delete(item);
+  } else if (container === item) {
+    delete main[prop];
+  }
+};
+
+const isEmptySet = (val) => val instanceof Set ? val.size === 0 : !val;
+
+/**
+ * @typedef {String} Path
+ */
+
+// fs_watch helpers
+
+// object to hold per-process fs_watch instances
+// (may be shared across chokidar FSWatcher instances)
+
+/**
+ * @typedef {Object} FsWatchContainer
+ * @property {Set} listeners
+ * @property {Set} errHandlers
+ * @property {Set} rawEmitters
+ * @property {fs.FSWatcher=} watcher
+ * @property {Boolean=} watcherUnusable
+ */
+
+/**
+ * @type {Map<String,FsWatchContainer>}
+ */
+const FsWatchInstances = new Map();
+
+/**
+ * Instantiates the fs_watch interface
+ * @param {String} path to be watched
+ * @param {Object} options to be passed to fs_watch
+ * @param {Function} listener main event handler
+ * @param {Function} errHandler emits info about errors
+ * @param {Function} emitRaw emits raw event data
+ * @returns {fs.FSWatcher} new fsevents instance
+ */
+function createFsWatchInstance(path, options, listener, errHandler, emitRaw) {
+  const handleEvent = (rawEvent, evPath) => {
+    listener(path);
+    emitRaw(rawEvent, evPath, {watchedPath: path});
+
+    // emit based on events occurring for files from a directory's watcher in
+    // case the file's watcher misses it (and rely on throttling to de-dupe)
+    if (evPath && path !== evPath) {
+      fsWatchBroadcast(
+        sysPath.resolve(path, evPath), KEY_LISTENERS, sysPath.join(path, evPath)
+      );
+    }
+  };
+  try {
+    return fs.watch(path, options, handleEvent);
+  } catch (error) {
+    errHandler(error);
+  }
+}
+
+/**
+ * Helper for passing fs_watch event data to a collection of listeners
+ * @param {Path} fullPath absolute path bound to fs_watch instance
+ * @param {String} type listener type
+ * @param {*=} val1 arguments to be passed to listeners
+ * @param {*=} val2
+ * @param {*=} val3
+ */
+const fsWatchBroadcast = (fullPath, type, val1, val2, val3) => {
+  const cont = FsWatchInstances.get(fullPath);
+  if (!cont) return;
+  foreach(cont[type], (listener) => {
+    listener(val1, val2, val3);
+  });
+};
+
+/**
+ * Instantiates the fs_watch interface or binds listeners
+ * to an existing one covering the same file system entry
+ * @param {String} path
+ * @param {String} fullPath absolute path
+ * @param {Object} options to be passed to fs_watch
+ * @param {Object} handlers container for event listener functions
+ */
+const setFsWatchListener = (path, fullPath, options, handlers) => {
+  const {listener, errHandler, rawEmitter} = handlers;
+  let cont = FsWatchInstances.get(fullPath);
+
+  /** @type {fs.FSWatcher=} */
+  let watcher;
+  if (!options.persistent) {
+    watcher = createFsWatchInstance(
+      path, options, listener, errHandler, rawEmitter
+    );
+    return watcher.close.bind(watcher);
+  }
+  if (cont) {
+    addAndConvert(cont, KEY_LISTENERS, listener);
+    addAndConvert(cont, KEY_ERR, errHandler);
+    addAndConvert(cont, KEY_RAW, rawEmitter);
+  } else {
+    watcher = createFsWatchInstance(
+      path,
+      options,
+      fsWatchBroadcast.bind(null, fullPath, KEY_LISTENERS),
+      errHandler, // no need to use broadcast here
+      fsWatchBroadcast.bind(null, fullPath, KEY_RAW)
+    );
+    if (!watcher) return;
+    watcher.on(EV_ERROR, async (error) => {
+      const broadcastErr = fsWatchBroadcast.bind(null, fullPath, KEY_ERR);
+      cont.watcherUnusable = true; // documented since Node 10.4.1
+      // Workaround for https://github.com/joyent/node/issues/4337
+      if (isWindows && error.code === 'EPERM') {
+        try {
+          const fd = await open(path, 'r');
+          await close(fd);
+          broadcastErr(error);
+        } catch (err) {}
+      } else {
+        broadcastErr(error);
+      }
+    });
+    cont = {
+      listeners: listener,
+      errHandlers: errHandler,
+      rawEmitters: rawEmitter,
+      watcher
+    };
+    FsWatchInstances.set(fullPath, cont);
+  }
+  // const index = cont.listeners.indexOf(listener);
+
+  // removes this instance's listeners and closes the underlying fs_watch
+  // instance if there are no more listeners left
+  return () => {
+    delFromSet(cont, KEY_LISTENERS, listener);
+    delFromSet(cont, KEY_ERR, errHandler);
+    delFromSet(cont, KEY_RAW, rawEmitter);
+    if (isEmptySet(cont.listeners)) {
+      // Check to protect against issue gh-730.
+      // if (cont.watcherUnusable) {
+      cont.watcher.close();
+      // }
+      FsWatchInstances.delete(fullPath);
+      HANDLER_KEYS.forEach(clearItem(cont));
+      cont.watcher = undefined;
+      Object.freeze(cont);
+    }
+  };
+};
+
+// fs_watchFile helpers
+
+// object to hold per-process fs_watchFile instances
+// (may be shared across chokidar FSWatcher instances)
+const FsWatchFileInstances = new Map();
+
+/**
+ * Instantiates the fs_watchFile interface or binds listeners
+ * to an existing one covering the same file system entry
+ * @param {String} path to be watched
+ * @param {String} fullPath absolute path
+ * @param {Object} options options to be passed to fs_watchFile
+ * @param {Object} handlers container for event listener functions
+ * @returns {Function} closer
+ */
+const setFsWatchFileListener = (path, fullPath, options, handlers) => {
+  const {listener, rawEmitter} = handlers;
+  let cont = FsWatchFileInstances.get(fullPath);
+
+  /* eslint-disable no-unused-vars, prefer-destructuring */
+  let listeners = new Set();
+  let rawEmitters = new Set();
+
+  const copts = cont && cont.options;
+  if (copts && (copts.persistent < options.persistent || copts.interval > options.interval)) {
+    // "Upgrade" the watcher to persistence or a quicker interval.
+    // This creates some unlikely edge case issues if the user mixes
+    // settings in a very weird way, but solving for those cases
+    // doesn't seem worthwhile for the added complexity.
+    listeners = cont.listeners;
+    rawEmitters = cont.rawEmitters;
+    fs.unwatchFile(fullPath);
+    cont = undefined;
+  }
+
+  /* eslint-enable no-unused-vars, prefer-destructuring */
+
+  if (cont) {
+    addAndConvert(cont, KEY_LISTENERS, listener);
+    addAndConvert(cont, KEY_RAW, rawEmitter);
+  } else {
+    // TODO
+    // listeners.add(listener);
+    // rawEmitters.add(rawEmitter);
+    cont = {
+      listeners: listener,
+      rawEmitters: rawEmitter,
+      options,
+      watcher: fs.watchFile(fullPath, options, (curr, prev) => {
+        foreach(cont.rawEmitters, (rawEmitter) => {
+          rawEmitter(EV_CHANGE, fullPath, {curr, prev});
+        });
+        const currmtime = curr.mtimeMs;
+        if (curr.size !== prev.size || currmtime > prev.mtimeMs || currmtime === 0) {
+          foreach(cont.listeners, (listener) => listener(path, curr));
+        }
+      })
+    };
+    FsWatchFileInstances.set(fullPath, cont);
+  }
+  // const index = cont.listeners.indexOf(listener);
+
+  // Removes this instance's listeners and closes the underlying fs_watchFile
+  // instance if there are no more listeners left.
+  return () => {
+    delFromSet(cont, KEY_LISTENERS, listener);
+    delFromSet(cont, KEY_RAW, rawEmitter);
+    if (isEmptySet(cont.listeners)) {
+      FsWatchFileInstances.delete(fullPath);
+      fs.unwatchFile(fullPath);
+      cont.options = cont.watcher = undefined;
+      Object.freeze(cont);
+    }
+  };
+};
+
+/**
+ * @mixin
+ */
+class NodeFsHandler {
+
+/**
+ * @param {import("../index").FSWatcher} fsW
+ */
+constructor(fsW) {
+  this.fsw = fsW;
+  this._boundHandleError = (error) => fsW._handleError(error);
+}
+
+/**
+ * Watch file for changes with fs_watchFile or fs_watch.
+ * @param {String} path to file or dir
+ * @param {Function} listener on fs change
+ * @returns {Function} closer for the watcher instance
+ */
+_watchWithNodeFs(path, listener) {
+  const opts = this.fsw.options;
+  const directory = sysPath.dirname(path);
+  const basename = sysPath.basename(path);
+  const parent = this.fsw._getWatchedDir(directory);
+  parent.add(basename);
+  const absolutePath = sysPath.resolve(path);
+  const options = {persistent: opts.persistent};
+  if (!listener) listener = EMPTY_FN;
+
+  let closer;
+  if (opts.usePolling) {
+    options.interval = opts.enableBinaryInterval && isBinaryPath(basename) ?
+      opts.binaryInterval : opts.interval;
+    closer = setFsWatchFileListener(path, absolutePath, options, {
+      listener,
+      rawEmitter: this.fsw._emitRaw
+    });
+  } else {
+    closer = setFsWatchListener(path, absolutePath, options, {
+      listener,
+      errHandler: this._boundHandleError,
+      rawEmitter: this.fsw._emitRaw
+    });
+  }
+  return closer;
+}
+
+/**
+ * Watch a file and emit add event if warranted.
+ * @param {Path} file Path
+ * @param {fs.Stats} stats result of fs_stat
+ * @param {Boolean} initialAdd was the file added at watch instantiation?
+ * @returns {Function} closer for the watcher instance
+ */
+_handleFile(file, stats, initialAdd) {
+  if (this.fsw.closed) {
+    return;
+  }
+  const dirname = sysPath.dirname(file);
+  const basename = sysPath.basename(file);
+  const parent = this.fsw._getWatchedDir(dirname);
+  // stats is always present
+  let prevStats = stats;
+
+  // if the file is already being watched, do nothing
+  if (parent.has(basename)) return;
+
+  const listener = async (path, newStats) => {
+    if (!this.fsw._throttle(THROTTLE_MODE_WATCH, file, 5)) return;
+    if (!newStats || newStats.mtimeMs === 0) {
+      try {
+        const newStats = await stat(file);
+        if (this.fsw.closed) return;
+        // Check that change event was not fired because of changed only accessTime.
+        const at = newStats.atimeMs;
+        const mt = newStats.mtimeMs;
+        if (!at || at <= mt || mt !== prevStats.mtimeMs) {
+          this.fsw._emit(EV_CHANGE, file, newStats);
+        }
+        if (isLinux && prevStats.ino !== newStats.ino) {
+          this.fsw._closeFile(path)
+          prevStats = newStats;
+          this.fsw._addPathCloser(path, this._watchWithNodeFs(file, listener));
+        } else {
+          prevStats = newStats;
+        }
+      } catch (error) {
+        // Fix issues where mtime is null but file is still present
+        this.fsw._remove(dirname, basename);
+      }
+      // add is about to be emitted if file not already tracked in parent
+    } else if (parent.has(basename)) {
+      // Check that change event was not fired because of changed only accessTime.
+      const at = newStats.atimeMs;
+      const mt = newStats.mtimeMs;
+      if (!at || at <= mt || mt !== prevStats.mtimeMs) {
+        this.fsw._emit(EV_CHANGE, file, newStats);
+      }
+      prevStats = newStats;
+    }
+  }
+  // kick off the watcher
+  const closer = this._watchWithNodeFs(file, listener);
+
+  // emit an add event if we're supposed to
+  if (!(initialAdd && this.fsw.options.ignoreInitial) && this.fsw._isntIgnored(file)) {
+    if (!this.fsw._throttle(EV_ADD, file, 0)) return;
+    this.fsw._emit(EV_ADD, file, stats);
+  }
+
+  return closer;
+}
+
+/**
+ * Handle symlinks encountered while reading a dir.
+ * @param {Object} entry returned by readdirp
+ * @param {String} directory path of dir being read
+ * @param {String} path of this item
+ * @param {String} item basename of this item
+ * @returns {Promise<Boolean>} true if no more processing is needed for this entry.
+ */
+async _handleSymlink(entry, directory, path, item) {
+  if (this.fsw.closed) {
+    return;
+  }
+  const full = entry.fullPath;
+  const dir = this.fsw._getWatchedDir(directory);
+
+  if (!this.fsw.options.followSymlinks) {
+    // watch symlink directly (don't follow) and detect changes
+    this.fsw._incrReadyCount();
+
+    let linkPath;
+    try {
+      linkPath = await fsrealpath(path);
+    } catch (e) {
+      this.fsw._emitReady();
+      return true;
+    }
+
+    if (this.fsw.closed) return;
+    if (dir.has(item)) {
+      if (this.fsw._symlinkPaths.get(full) !== linkPath) {
+        this.fsw._symlinkPaths.set(full, linkPath);
+        this.fsw._emit(EV_CHANGE, path, entry.stats);
+      }
+    } else {
+      dir.add(item);
+      this.fsw._symlinkPaths.set(full, linkPath);
+      this.fsw._emit(EV_ADD, path, entry.stats);
+    }
+    this.fsw._emitReady();
+    return true;
+  }
+
+  // don't follow the same symlink more than once
+  if (this.fsw._symlinkPaths.has(full)) {
+    return true;
+  }
+
+  this.fsw._symlinkPaths.set(full, true);
+}
+
+_handleRead(directory, initialAdd, wh, target, dir, depth, throttler) {
+  // Normalize the directory name on Windows
+  directory = sysPath.join(directory, EMPTY_STR);
+
+  if (!wh.hasGlob) {
+    throttler = this.fsw._throttle('readdir', directory, 1000);
+    if (!throttler) return;
+  }
+
+  const previous = this.fsw._getWatchedDir(wh.path);
+  const current = new Set();
+
+  let stream = this.fsw._readdirp(directory, {
+    fileFilter: entry => wh.filterPath(entry),
+    directoryFilter: entry => wh.filterDir(entry),
+    depth: 0
+  }).on(STR_DATA, async (entry) => {
+    if (this.fsw.closed) {
+      stream = undefined;
+      return;
+    }
+    const item = entry.path;
+    let path = sysPath.join(directory, item);
+    current.add(item);
+
+    if (entry.stats.isSymbolicLink() && await this._handleSymlink(entry, directory, path, item)) {
+      return;
+    }
+
+    if (this.fsw.closed) {
+      stream = undefined;
+      return;
+    }
+    // Files that present in current directory snapshot
+    // but absent in previous are added to watch list and
+    // emit `add` event.
+    if (item === target || !target && !previous.has(item)) {
+      this.fsw._incrReadyCount();
+
+      // ensure relativeness of path is preserved in case of watcher reuse
+      path = sysPath.join(dir, sysPath.relative(dir, path));
+
+      this._addToNodeFs(path, initialAdd, wh, depth + 1);
+    }
+  }).on(EV_ERROR, this._boundHandleError);
+
+  return new Promise(resolve =>
+    stream.once(STR_END, () => {
+      if (this.fsw.closed) {
+        stream = undefined;
+        return;
+      }
+      const wasThrottled = throttler ? throttler.clear() : false;
+
+      resolve();
+
+      // Files that absent in current directory snapshot
+      // but present in previous emit `remove` event
+      // and are removed from @watched[directory].
+      previous.getChildren().filter((item) => {
+        return item !== directory &&
+          !current.has(item) &&
+          // in case of intersecting globs;
+          // a path may have been filtered out of this readdir, but
+          // shouldn't be removed because it matches a different glob
+          (!wh.hasGlob || wh.filterPath({
+            fullPath: sysPath.resolve(directory, item)
+          }));
+      }).forEach((item) => {
+        this.fsw._remove(directory, item);
+      });
+
+      stream = undefined;
+
+      // one more time for any missed in case changes came in extremely quickly
+      if (wasThrottled) this._handleRead(directory, false, wh, target, dir, depth, throttler);
+    })
+  );
+}
+
+/**
+ * Read directory to add / remove files from `@watched` list and re-read it on change.
+ * @param {String} dir fs path
+ * @param {fs.Stats} stats
+ * @param {Boolean} initialAdd
+ * @param {Number} depth relative to user-supplied path
+ * @param {String} target child path targeted for watch
+ * @param {Object} wh Common watch helpers for this path
+ * @param {String} realpath
+ * @returns {Promise<Function>} closer for the watcher instance.
+ */
+async _handleDir(dir, stats, initialAdd, depth, target, wh, realpath) {
+  const parentDir = this.fsw._getWatchedDir(sysPath.dirname(dir));
+  const tracked = parentDir.has(sysPath.basename(dir));
+  if (!(initialAdd && this.fsw.options.ignoreInitial) && !target && !tracked) {
+    if (!wh.hasGlob || wh.globFilter(dir)) this.fsw._emit(EV_ADD_DIR, dir, stats);
+  }
+
+  // ensure dir is tracked (harmless if redundant)
+  parentDir.add(sysPath.basename(dir));
+  this.fsw._getWatchedDir(dir);
+  let throttler;
+  let closer;
+
+  const oDepth = this.fsw.options.depth;
+  if ((oDepth == null || depth <= oDepth) && !this.fsw._symlinkPaths.has(realpath)) {
+    if (!target) {
+      await this._handleRead(dir, initialAdd, wh, target, dir, depth, throttler);
+      if (this.fsw.closed) return;
+    }
+
+    closer = this._watchWithNodeFs(dir, (dirPath, stats) => {
+      // if current directory is removed, do nothing
+      if (stats && stats.mtimeMs === 0) return;
+
+      this._handleRead(dirPath, false, wh, target, dir, depth, throttler);
+    });
+  }
+  return closer;
+}
+
+/**
+ * Handle added file, directory, or glob pattern.
+ * Delegates call to _handleFile / _handleDir after checks.
+ * @param {String} path to file or ir
+ * @param {Boolean} initialAdd was the file added at watch instantiation?
+ * @param {Object} priorWh depth relative to user-supplied path
+ * @param {Number} depth Child path actually targeted for watch
+ * @param {String=} target Child path actually targeted for watch
+ * @returns {Promise}
+ */
+async _addToNodeFs(path, initialAdd, priorWh, depth, target) {
+  const ready = this.fsw._emitReady;
+  if (this.fsw._isIgnored(path) || this.fsw.closed) {
+    ready();
+    return false;
+  }
+
+  const wh = this.fsw._getWatchHelpers(path, depth);
+  if (!wh.hasGlob && priorWh) {
+    wh.hasGlob = priorWh.hasGlob;
+    wh.globFilter = priorWh.globFilter;
+    wh.filterPath = entry => priorWh.filterPath(entry);
+    wh.filterDir = entry => priorWh.filterDir(entry);
+  }
+
+  // evaluate what is at the path we're being asked to watch
+  try {
+    const stats = await statMethods[wh.statMethod](wh.watchPath);
+    if (this.fsw.closed) return;
+    if (this.fsw._isIgnored(wh.watchPath, stats)) {
+      ready();
+      return false;
+    }
+
+    const follow = this.fsw.options.followSymlinks && !path.includes(STAR) && !path.includes(BRACE_START);
+    let closer;
+    if (stats.isDirectory()) {
+      const absPath = sysPath.resolve(path);
+      const targetPath = follow ? await fsrealpath(path) : path;
+      if (this.fsw.closed) return;
+      closer = await this._handleDir(wh.watchPath, stats, initialAdd, depth, target, wh, targetPath);
+      if (this.fsw.closed) return;
+      // preserve this symlink's target path
+      if (absPath !== targetPath && targetPath !== undefined) {
+        this.fsw._symlinkPaths.set(absPath, targetPath);
+      }
+    } else if (stats.isSymbolicLink()) {
+      const targetPath = follow ? await fsrealpath(path) : path;
+      if (this.fsw.closed) return;
+      const parent = sysPath.dirname(wh.watchPath);
+      this.fsw._getWatchedDir(parent).add(wh.watchPath);
+      this.fsw._emit(EV_ADD, wh.watchPath, stats);
+      closer = await this._handleDir(parent, stats, initialAdd, depth, path, wh, targetPath);
+      if (this.fsw.closed) return;
+
+      // preserve this symlink's target path
+      if (targetPath !== undefined) {
+        this.fsw._symlinkPaths.set(sysPath.resolve(path), targetPath);
+      }
+    } else {
+      closer = this._handleFile(wh.watchPath, stats, initialAdd);
+    }
+    ready();
+
+    this.fsw._addPathCloser(path, closer);
+    return false;
+
+  } catch (error) {
+    if (this.fsw._handleError(error)) {
+      ready();
+      return path;
+    }
+  }
+}
+
+}
+
+module.exports = NodeFsHandler;
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/package.json b/src/main/webapp/com/css/sass/node_modules/chokidar/package.json
new file mode 100644
index 00000000..e8f8b3d9
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/package.json
@@ -0,0 +1,70 @@
+{
+  "name": "chokidar",
+  "description": "Minimal and efficient cross-platform file watching library",
+  "version": "3.6.0",
+  "homepage": "https://github.com/paulmillr/chokidar",
+  "author": "Paul Miller (https://paulmillr.com)",
+  "contributors": [
+    "Paul Miller (https://paulmillr.com)",
+    "Elan Shanker"
+  ],
+  "engines": {
+    "node": ">= 8.10.0"
+  },
+  "main": "index.js",
+  "types": "./types/index.d.ts",
+  "dependencies": {
+    "anymatch": "~3.1.2",
+    "braces": "~3.0.2",
+    "glob-parent": "~5.1.2",
+    "is-binary-path": "~2.1.0",
+    "is-glob": "~4.0.1",
+    "normalize-path": "~3.0.0",
+    "readdirp": "~3.6.0"
+  },
+  "optionalDependencies": {
+    "fsevents": "~2.3.2"
+  },
+  "devDependencies": {
+    "@types/node": "^14",
+    "chai": "^4.3",
+    "dtslint": "^3.3.0",
+    "eslint": "^7.0.0",
+    "mocha": "^7.0.0",
+    "rimraf": "^3.0.0",
+    "sinon": "^9.0.1",
+    "sinon-chai": "^3.3.0",
+    "typescript": "^4.4.3",
+    "upath": "^1.2.0"
+  },
+  "files": [
+    "index.js",
+    "lib/*.js",
+    "types/index.d.ts"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/paulmillr/chokidar.git"
+  },
+  "bugs": {
+    "url": "https://github.com/paulmillr/chokidar/issues"
+  },
+  "license": "MIT",
+  "scripts": {
+    "dtslint": "dtslint types",
+    "lint": "eslint --report-unused-disable-directives --ignore-path .gitignore .",
+    "build": "npm ls",
+    "mocha": "mocha --exit --timeout 90000",
+    "test": "npm run lint && npm run mocha"
+  },
+  "keywords": [
+    "fs",
+    "watch",
+    "watchFile",
+    "watcher",
+    "watching",
+    "file",
+    "fsevents"
+  ],
+  "funding": "https://paulmillr.com/funding/"
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/chokidar/types/index.d.ts b/src/main/webapp/com/css/sass/node_modules/chokidar/types/index.d.ts
new file mode 100644
index 00000000..45580663
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/chokidar/types/index.d.ts
@@ -0,0 +1,192 @@
+// TypeScript Version: 3.0
+
+/// <reference types="node" />
+
+import * as fs from "fs";
+import { EventEmitter } from "events";
+import { Matcher } from 'anymatch';
+
+export class FSWatcher extends EventEmitter implements fs.FSWatcher {
+  options: WatchOptions;
+
+  /**
+   * Constructs a new FSWatcher instance with optional WatchOptions parameter.
+   */
+  constructor(options?: WatchOptions);
+
+  /**
+   * Add files, directories, or glob patterns for tracking. Takes an array of strings or just one
+   * string.
+   */
+  add(paths: string | ReadonlyArray<string>): this;
+
+  /**
+   * Stop watching files, directories, or glob patterns. Takes an array of strings or just one
+   * string.
+   */
+  unwatch(paths: string | ReadonlyArray<string>): this;
+
+  /**
+   * Returns an object representing all the paths on the file system being watched by this
+   * `FSWatcher` instance. The object's keys are all the directories (using absolute paths unless
+   * the `cwd` option was used), and the values are arrays of the names of the items contained in
+   * each directory.
+   */
+  getWatched(): {
+    [directory: string]: string[];
+  };
+
+  /**
+   * Removes all listeners from watched files.
+   */
+  close(): Promise<void>;
+
+  on(event: 'add'|'addDir'|'change', listener: (path: string, stats?: fs.Stats) => void): this;
+
+  on(event: 'all', listener: (eventName: 'add'|'addDir'|'change'|'unlink'|'unlinkDir', path: string, stats?: fs.Stats) => void): this;
+
+  /**
+   * Error occurred
+   */
+  on(event: 'error', listener: (error: Error) => void): this;
+
+  /**
+   * Exposes the native Node `fs.FSWatcher events`
+   */
+  on(event: 'raw', listener: (eventName: string, path: string, details: any) => void): this;
+
+  /**
+   * Fires when the initial scan is complete
+   */
+  on(event: 'ready', listener: () => void): this;
+
+  on(event: 'unlink'|'unlinkDir', listener: (path: string) => void): this;
+
+  on(event: string, listener: (...args: any[]) => void): this;
+
+  ref(): this;
+  
+  unref(): this;
+}
+
+export interface WatchOptions {
+  /**
+   * Indicates whether the process should continue to run as long as files are being watched. If
+   * set to `false` when using `fsevents` to watch, no more events will be emitted after `ready`,
+   * even if the process continues to run.
+   */
+  persistent?: boolean;
+
+  /**
+   * ([anymatch](https://github.com/micromatch/anymatch)-compatible definition) Defines files/paths to
+   * be ignored. The whole relative or absolute path is tested, not just filename. If a function
+   * with two arguments is provided, it gets called twice per path - once with a single argument
+   * (the path), second time with two arguments (the path and the
+   * [`fs.Stats`](https://nodejs.org/api/fs.html#fs_class_fs_stats) object of that path).
+   */
+  ignored?: Matcher;
+
+  /**
+   * If set to `false` then `add`/`addDir` events are also emitted for matching paths while
+   * instantiating the watching as chokidar discovers these file paths (before the `ready` event).
+   */
+  ignoreInitial?: boolean;
+
+  /**
+   * When `false`, only the symlinks themselves will be watched for changes instead of following
+   * the link references and bubbling events through the link's path.
+   */
+  followSymlinks?: boolean;
+
+  /**
+   * The base directory from which watch `paths` are to be derived. Paths emitted with events will
+   * be relative to this.
+   */
+  cwd?: string;
+
+  /**
+   *  If set to true then the strings passed to .watch() and .add() are treated as literal path
+   *  names, even if they look like globs. Default: false.
+   */
+  disableGlobbing?: boolean;
+
+  /**
+   * Whether to use fs.watchFile (backed by polling), or fs.watch. If polling leads to high CPU
+   * utilization, consider setting this to `false`. It is typically necessary to **set this to
+   * `true` to successfully watch files over a network**, and it may be necessary to successfully
+   * watch files in other non-standard situations. Setting to `true` explicitly on OS X overrides
+   * the `useFsEvents` default.
+   */
+  usePolling?: boolean;
+
+  /**
+   * Whether to use the `fsevents` watching interface if available. When set to `true` explicitly
+   * and `fsevents` is available this supercedes the `usePolling` setting. When set to `false` on
+   * OS X, `usePolling: true` becomes the default.
+   */
+  useFsEvents?: boolean;
+
+  /**
+   * If relying upon the [`fs.Stats`](https://nodejs.org/api/fs.html#fs_class_fs_stats) object that
+   * may get passed with `add`, `addDir`, and `change` events, set this to `true` to ensure it is
+   * provided even in cases where it wasn't already available from the underlying watch events.
+   */
+  alwaysStat?: boolean;
+
+  /**
+   * If set, limits how many levels of subdirectories will be traversed.
+   */
+  depth?: number;
+
+  /**
+   * Interval of file system polling.
+   */
+  interval?: number;
+
+  /**
+   * Interval of file system polling for binary files. ([see list of binary extensions](https://gi
+   * thub.com/sindresorhus/binary-extensions/blob/master/binary-extensions.json))
+   */
+  binaryInterval?: number;
+
+  /**
+   *  Indicates whether to watch files that don't have read permissions if possible. If watching
+   *  fails due to `EPERM` or `EACCES` with this set to `true`, the errors will be suppressed
+   *  silently.
+   */
+  ignorePermissionErrors?: boolean;
+
+  /**
+   * `true` if `useFsEvents` and `usePolling` are `false`). Automatically filters out artifacts
+   * that occur when using editors that use "atomic writes" instead of writing directly to the
+   * source file. If a file is re-added within 100 ms of being deleted, Chokidar emits a `change`
+   * event rather than `unlink` then `add`. If the default of 100 ms does not work well for you,
+   * you can override it by setting `atomic` to a custom value, in milliseconds.
+   */
+  atomic?: boolean | number;
+
+  /**
+   * can be set to an object in order to adjust timing params:
+   */
+  awaitWriteFinish?: AwaitWriteFinishOptions | boolean;
+}
+
+export interface AwaitWriteFinishOptions {
+  /**
+   * Amount of time in milliseconds for a file size to remain constant before emitting its event.
+   */
+  stabilityThreshold?: number;
+
+  /**
+   * File size polling interval.
+   */
+  pollInterval?: number;
+}
+
+/**
+ * produces an instance of `FSWatcher`.
+ */
+export function watch(
+  paths: string | ReadonlyArray<string>,
+  options?: WatchOptions
+): FSWatcher;
diff --git a/src/main/webapp/com/css/sass/node_modules/fill-range/LICENSE b/src/main/webapp/com/css/sass/node_modules/fill-range/LICENSE
new file mode 100644
index 00000000..9af4a67d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/fill-range/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-present, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/fill-range/README.md b/src/main/webapp/com/css/sass/node_modules/fill-range/README.md
new file mode 100644
index 00000000..8d756fe9
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/fill-range/README.md
@@ -0,0 +1,237 @@
+# fill-range [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W8YFZ425KND68) [![NPM version](https://img.shields.io/npm/v/fill-range.svg?style=flat)](https://www.npmjs.com/package/fill-range) [![NPM monthly downloads](https://img.shields.io/npm/dm/fill-range.svg?style=flat)](https://npmjs.org/package/fill-range) [![NPM total downloads](https://img.shields.io/npm/dt/fill-range.svg?style=flat)](https://npmjs.org/package/fill-range) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/fill-range.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/fill-range)
+
+> Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`
+
+Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save fill-range
+```
+
+## Usage
+
+Expands numbers and letters, optionally using a `step` as the last argument. _(Numbers may be defined as JavaScript numbers or strings)_.
+
+```js
+const fill = require('fill-range');
+// fill(from, to[, step, options]);
+
+console.log(fill('1', '10')); //=> ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10']
+console.log(fill('1', '10', { toRegex: true })); //=> [1-9]|10
+```
+
+**Params**
+
+* `from`: **{String|Number}** the number or letter to start with
+* `to`: **{String|Number}** the number or letter to end with
+* `step`: **{String|Number|Object|Function}** Optionally pass a [step](#optionsstep) to use.
+* `options`: **{Object|Function}**: See all available [options](#options)
+
+## Examples
+
+By default, an array of values is returned.
+
+**Alphabetical ranges**
+
+```js
+console.log(fill('a', 'e')); //=> ['a', 'b', 'c', 'd', 'e']
+console.log(fill('A', 'E')); //=> [ 'A', 'B', 'C', 'D', 'E' ]
+```
+
+**Numerical ranges**
+
+Numbers can be defined as actual numbers or strings.
+
+```js
+console.log(fill(1, 5));     //=> [ 1, 2, 3, 4, 5 ]
+console.log(fill('1', '5')); //=> [ 1, 2, 3, 4, 5 ]
+```
+
+**Negative ranges**
+
+Numbers can be defined as actual numbers or strings.
+
+```js
+console.log(fill('-5', '-1')); //=> [ '-5', '-4', '-3', '-2', '-1' ]
+console.log(fill('-5', '5')); //=> [ '-5', '-4', '-3', '-2', '-1', '0', '1', '2', '3', '4', '5' ]
+```
+
+**Steps (increments)**
+
+```js
+// numerical ranges with increments
+console.log(fill('0', '25', 4)); //=> [ '0', '4', '8', '12', '16', '20', '24' ]
+console.log(fill('0', '25', 5)); //=> [ '0', '5', '10', '15', '20', '25' ]
+console.log(fill('0', '25', 6)); //=> [ '0', '6', '12', '18', '24' ]
+
+// alphabetical ranges with increments
+console.log(fill('a', 'z', 4)); //=> [ 'a', 'e', 'i', 'm', 'q', 'u', 'y' ]
+console.log(fill('a', 'z', 5)); //=> [ 'a', 'f', 'k', 'p', 'u', 'z' ]
+console.log(fill('a', 'z', 6)); //=> [ 'a', 'g', 'm', 's', 'y' ]
+```
+
+## Options
+
+### options.step
+
+**Type**: `number` (formatted as a string or number)
+
+**Default**: `undefined`
+
+**Description**: The increment to use for the range. Can be used with letters or numbers.
+
+**Example(s)**
+
+```js
+// numbers
+console.log(fill('1', '10', 2)); //=> [ '1', '3', '5', '7', '9' ]
+console.log(fill('1', '10', 3)); //=> [ '1', '4', '7', '10' ]
+console.log(fill('1', '10', 4)); //=> [ '1', '5', '9' ]
+
+// letters
+console.log(fill('a', 'z', 5)); //=> [ 'a', 'f', 'k', 'p', 'u', 'z' ]
+console.log(fill('a', 'z', 7)); //=> [ 'a', 'h', 'o', 'v' ]
+console.log(fill('a', 'z', 9)); //=> [ 'a', 'j', 's' ]
+```
+
+### options.strictRanges
+
+**Type**: `boolean`
+
+**Default**: `false`
+
+**Description**: By default, `null` is returned when an invalid range is passed. Enable this option to throw a `RangeError` on invalid ranges.
+
+**Example(s)**
+
+The following are all invalid:
+
+```js
+fill('1.1', '2');   // decimals not supported in ranges
+fill('a', '2');     // incompatible range values
+fill(1, 10, 'foo'); // invalid "step" argument
+```
+
+### options.stringify
+
+**Type**: `boolean`
+
+**Default**: `undefined`
+
+**Description**: Cast all returned values to strings. By default, integers are returned as numbers.
+
+**Example(s)**
+
+```js
+console.log(fill(1, 5));                    //=> [ 1, 2, 3, 4, 5 ]
+console.log(fill(1, 5, { stringify: true })); //=> [ '1', '2', '3', '4', '5' ]
+```
+
+### options.toRegex
+
+**Type**: `boolean`
+
+**Default**: `undefined`
+
+**Description**: Create a regex-compatible source string, instead of expanding values to an array.
+
+**Example(s)**
+
+```js
+// alphabetical range
+console.log(fill('a', 'e', { toRegex: true })); //=> '[a-e]'
+// alphabetical with step
+console.log(fill('a', 'z', 3, { toRegex: true })); //=> 'a|d|g|j|m|p|s|v|y'
+// numerical range
+console.log(fill('1', '100', { toRegex: true })); //=> '[1-9]|[1-9][0-9]|100'
+// numerical range with zero padding
+console.log(fill('000001', '100000', { toRegex: true }));
+//=> '0{5}[1-9]|0{4}[1-9][0-9]|0{3}[1-9][0-9]{2}|0{2}[1-9][0-9]{3}|0[1-9][0-9]{4}|100000'
+```
+
+### options.transform
+
+**Type**: `function`
+
+**Default**: `undefined`
+
+**Description**: Customize each value in the returned array (or [string](#optionstoRegex)). _(you can also pass this function as the last argument to `fill()`)_.
+
+**Example(s)**
+
+```js
+// add zero padding
+console.log(fill(1, 5, value => String(value).padStart(4, '0')));
+//=> ['0001', '0002', '0003', '0004', '0005']
+```
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Contributors
+
+| **Commits** | **Contributor** |  
+| --- | --- |  
+| 116 | [jonschlinkert](https://github.com/jonschlinkert) |  
+| 4   | [paulmillr](https://github.com/paulmillr) |  
+| 2   | [realityking](https://github.com/realityking) |  
+| 2   | [bluelovers](https://github.com/bluelovers) |  
+| 1   | [edorivai](https://github.com/edorivai) |  
+| 1   | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |  
+
+### Author
+
+**Jon Schlinkert**
+
+* [GitHub Profile](https://github.com/jonschlinkert)
+* [Twitter Profile](https://twitter.com/jonschlinkert)
+* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+
+Please consider supporting me on Patreon, or [start your own Patreon page](https://patreon.com/invite/bxpbvm)!
+
+<a href="https://www.patreon.com/jonschlinkert">
+<img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" height="50">
+</a>
+
+### License
+
+Copyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on April 08, 2019._
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/fill-range/index.js b/src/main/webapp/com/css/sass/node_modules/fill-range/index.js
new file mode 100644
index 00000000..ddb212ee
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/fill-range/index.js
@@ -0,0 +1,248 @@
+/*!
+ * fill-range <https://github.com/jonschlinkert/fill-range>
+ *
+ * Copyright (c) 2014-present, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+'use strict';
+
+const util = require('util');
+const toRegexRange = require('to-regex-range');
+
+const isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
+
+const transform = toNumber => {
+  return value => toNumber === true ? Number(value) : String(value);
+};
+
+const isValidValue = value => {
+  return typeof value === 'number' || (typeof value === 'string' && value !== '');
+};
+
+const isNumber = num => Number.isInteger(+num);
+
+const zeros = input => {
+  let value = `${input}`;
+  let index = -1;
+  if (value[0] === '-') value = value.slice(1);
+  if (value === '0') return false;
+  while (value[++index] === '0');
+  return index > 0;
+};
+
+const stringify = (start, end, options) => {
+  if (typeof start === 'string' || typeof end === 'string') {
+    return true;
+  }
+  return options.stringify === true;
+};
+
+const pad = (input, maxLength, toNumber) => {
+  if (maxLength > 0) {
+    let dash = input[0] === '-' ? '-' : '';
+    if (dash) input = input.slice(1);
+    input = (dash + input.padStart(dash ? maxLength - 1 : maxLength, '0'));
+  }
+  if (toNumber === false) {
+    return String(input);
+  }
+  return input;
+};
+
+const toMaxLen = (input, maxLength) => {
+  let negative = input[0] === '-' ? '-' : '';
+  if (negative) {
+    input = input.slice(1);
+    maxLength--;
+  }
+  while (input.length < maxLength) input = '0' + input;
+  return negative ? ('-' + input) : input;
+};
+
+const toSequence = (parts, options, maxLen) => {
+  parts.negatives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
+  parts.positives.sort((a, b) => a < b ? -1 : a > b ? 1 : 0);
+
+  let prefix = options.capture ? '' : '?:';
+  let positives = '';
+  let negatives = '';
+  let result;
+
+  if (parts.positives.length) {
+    positives = parts.positives.map(v => toMaxLen(String(v), maxLen)).join('|');
+  }
+
+  if (parts.negatives.length) {
+    negatives = `-(${prefix}${parts.negatives.map(v => toMaxLen(String(v), maxLen)).join('|')})`;
+  }
+
+  if (positives && negatives) {
+    result = `${positives}|${negatives}`;
+  } else {
+    result = positives || negatives;
+  }
+
+  if (options.wrap) {
+    return `(${prefix}${result})`;
+  }
+
+  return result;
+};
+
+const toRange = (a, b, isNumbers, options) => {
+  if (isNumbers) {
+    return toRegexRange(a, b, { wrap: false, ...options });
+  }
+
+  let start = String.fromCharCode(a);
+  if (a === b) return start;
+
+  let stop = String.fromCharCode(b);
+  return `[${start}-${stop}]`;
+};
+
+const toRegex = (start, end, options) => {
+  if (Array.isArray(start)) {
+    let wrap = options.wrap === true;
+    let prefix = options.capture ? '' : '?:';
+    return wrap ? `(${prefix}${start.join('|')})` : start.join('|');
+  }
+  return toRegexRange(start, end, options);
+};
+
+const rangeError = (...args) => {
+  return new RangeError('Invalid range arguments: ' + util.inspect(...args));
+};
+
+const invalidRange = (start, end, options) => {
+  if (options.strictRanges === true) throw rangeError([start, end]);
+  return [];
+};
+
+const invalidStep = (step, options) => {
+  if (options.strictRanges === true) {
+    throw new TypeError(`Expected step "${step}" to be a number`);
+  }
+  return [];
+};
+
+const fillNumbers = (start, end, step = 1, options = {}) => {
+  let a = Number(start);
+  let b = Number(end);
+
+  if (!Number.isInteger(a) || !Number.isInteger(b)) {
+    if (options.strictRanges === true) throw rangeError([start, end]);
+    return [];
+  }
+
+  // fix negative zero
+  if (a === 0) a = 0;
+  if (b === 0) b = 0;
+
+  let descending = a > b;
+  let startString = String(start);
+  let endString = String(end);
+  let stepString = String(step);
+  step = Math.max(Math.abs(step), 1);
+
+  let padded = zeros(startString) || zeros(endString) || zeros(stepString);
+  let maxLen = padded ? Math.max(startString.length, endString.length, stepString.length) : 0;
+  let toNumber = padded === false && stringify(start, end, options) === false;
+  let format = options.transform || transform(toNumber);
+
+  if (options.toRegex && step === 1) {
+    return toRange(toMaxLen(start, maxLen), toMaxLen(end, maxLen), true, options);
+  }
+
+  let parts = { negatives: [], positives: [] };
+  let push = num => parts[num < 0 ? 'negatives' : 'positives'].push(Math.abs(num));
+  let range = [];
+  let index = 0;
+
+  while (descending ? a >= b : a <= b) {
+    if (options.toRegex === true && step > 1) {
+      push(a);
+    } else {
+      range.push(pad(format(a, index), maxLen, toNumber));
+    }
+    a = descending ? a - step : a + step;
+    index++;
+  }
+
+  if (options.toRegex === true) {
+    return step > 1
+      ? toSequence(parts, options, maxLen)
+      : toRegex(range, null, { wrap: false, ...options });
+  }
+
+  return range;
+};
+
+const fillLetters = (start, end, step = 1, options = {}) => {
+  if ((!isNumber(start) && start.length > 1) || (!isNumber(end) && end.length > 1)) {
+    return invalidRange(start, end, options);
+  }
+
+  let format = options.transform || (val => String.fromCharCode(val));
+  let a = `${start}`.charCodeAt(0);
+  let b = `${end}`.charCodeAt(0);
+
+  let descending = a > b;
+  let min = Math.min(a, b);
+  let max = Math.max(a, b);
+
+  if (options.toRegex && step === 1) {
+    return toRange(min, max, false, options);
+  }
+
+  let range = [];
+  let index = 0;
+
+  while (descending ? a >= b : a <= b) {
+    range.push(format(a, index));
+    a = descending ? a - step : a + step;
+    index++;
+  }
+
+  if (options.toRegex === true) {
+    return toRegex(range, null, { wrap: false, options });
+  }
+
+  return range;
+};
+
+const fill = (start, end, step, options = {}) => {
+  if (end == null && isValidValue(start)) {
+    return [start];
+  }
+
+  if (!isValidValue(start) || !isValidValue(end)) {
+    return invalidRange(start, end, options);
+  }
+
+  if (typeof step === 'function') {
+    return fill(start, end, 1, { transform: step });
+  }
+
+  if (isObject(step)) {
+    return fill(start, end, 0, step);
+  }
+
+  let opts = { ...options };
+  if (opts.capture === true) opts.wrap = true;
+  step = step || opts.step || 1;
+
+  if (!isNumber(step)) {
+    if (step != null && !isObject(step)) return invalidStep(step, opts);
+    return fill(start, end, 1, step);
+  }
+
+  if (isNumber(start) && isNumber(end)) {
+    return fillNumbers(start, end, step, opts);
+  }
+
+  return fillLetters(start, end, Math.max(Math.abs(step), 1), opts);
+};
+
+module.exports = fill;
diff --git a/src/main/webapp/com/css/sass/node_modules/fill-range/package.json b/src/main/webapp/com/css/sass/node_modules/fill-range/package.json
new file mode 100644
index 00000000..582357fb
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/fill-range/package.json
@@ -0,0 +1,74 @@
+{
+  "name": "fill-range",
+  "description": "Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`",
+  "version": "7.1.1",
+  "homepage": "https://github.com/jonschlinkert/fill-range",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Edo Rivai (edo.rivai.nl)",
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)",
+    "Paul Miller (paulmillr.com)",
+    "Rouven Weßling (www.rouvenwessling.de)",
+    "(https://github.com/wtgtybhertgeghgtwtg)"
+  ],
+  "repository": "jonschlinkert/fill-range",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/fill-range/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=8"
+  },
+  "scripts": {
+    "lint": "eslint --cache --cache-location node_modules/.cache/.eslintcache --report-unused-disable-directives --ignore-path .gitignore .",
+    "mocha": "mocha --reporter dot",
+    "test": "npm run lint && npm run mocha",
+    "test:ci": "npm run test:cover",
+    "test:cover": "nyc npm run mocha"
+  },
+  "dependencies": {
+    "to-regex-range": "^5.0.1"
+  },
+  "devDependencies": {
+    "gulp-format-md": "^2.0.0",
+    "mocha": "^6.1.1",
+    "nyc": "^15.1.0"
+  },
+  "keywords": [
+    "alpha",
+    "alphabetical",
+    "array",
+    "bash",
+    "brace",
+    "expand",
+    "expansion",
+    "fill",
+    "glob",
+    "match",
+    "matches",
+    "matching",
+    "number",
+    "numerical",
+    "range",
+    "ranges",
+    "regex",
+    "sh"
+  ],
+  "verb": {
+    "toc": false,
+    "layout": "default",
+    "tasks": [
+      "readme"
+    ],
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "lint": {
+      "reflinks": true
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/glob-parent/CHANGELOG.md b/src/main/webapp/com/css/sass/node_modules/glob-parent/CHANGELOG.md
new file mode 100644
index 00000000..fb9de961
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/glob-parent/CHANGELOG.md
@@ -0,0 +1,110 @@
+### [5.1.2](https://github.com/gulpjs/glob-parent/compare/v5.1.1...v5.1.2) (2021-03-06)
+
+
+### Bug Fixes
+
+* eliminate ReDoS ([#36](https://github.com/gulpjs/glob-parent/issues/36)) ([f923116](https://github.com/gulpjs/glob-parent/commit/f9231168b0041fea3f8f954b3cceb56269fc6366))
+
+### [5.1.1](https://github.com/gulpjs/glob-parent/compare/v5.1.0...v5.1.1) (2021-01-27)
+
+
+### Bug Fixes
+
+* unescape exclamation mark ([#26](https://github.com/gulpjs/glob-parent/issues/26)) ([a98874f](https://github.com/gulpjs/glob-parent/commit/a98874f1a59e407f4fb1beb0db4efa8392da60bb))
+
+## [5.1.0](https://github.com/gulpjs/glob-parent/compare/v5.0.0...v5.1.0) (2021-01-27)
+
+
+### Features
+
+* add `flipBackslashes` option to disable auto conversion of slashes (closes [#24](https://github.com/gulpjs/glob-parent/issues/24)) ([#25](https://github.com/gulpjs/glob-parent/issues/25)) ([eecf91d](https://github.com/gulpjs/glob-parent/commit/eecf91d5e3834ed78aee39c4eaaae654d76b87b3))
+
+## [5.0.0](https://github.com/gulpjs/glob-parent/compare/v4.0.0...v5.0.0) (2021-01-27)
+
+
+### ⚠ BREAKING CHANGES
+
+* Drop support for node <6 & bump dependencies
+
+### Miscellaneous Chores
+
+* Drop support for node <6 & bump dependencies ([896c0c0](https://github.com/gulpjs/glob-parent/commit/896c0c00b4e7362f60b96e7fc295ae929245255a))
+
+## [4.0.0](https://github.com/gulpjs/glob-parent/compare/v3.1.0...v4.0.0) (2021-01-27)
+
+
+### ⚠ BREAKING CHANGES
+
+* question marks are valid path characters on Windows so avoid flagging as a glob when alone
+* Update is-glob dependency
+
+### Features
+
+* hoist regexps and strings for performance gains ([4a80667](https://github.com/gulpjs/glob-parent/commit/4a80667c69355c76a572a5892b0f133c8e1f457e))
+* question marks are valid path characters on Windows so avoid flagging as a glob when alone ([2a551dd](https://github.com/gulpjs/glob-parent/commit/2a551dd0dc3235e78bf3c94843d4107072d17841))
+* Update is-glob dependency ([e41fcd8](https://github.com/gulpjs/glob-parent/commit/e41fcd895d1f7bc617dba45c9d935a7949b9c281))
+
+## [3.1.0](https://github.com/gulpjs/glob-parent/compare/v3.0.1...v3.1.0) (2021-01-27)
+
+
+### Features
+
+* allow basic win32 backslash use ([272afa5](https://github.com/gulpjs/glob-parent/commit/272afa5fd070fc0f796386a5993d4ee4a846988b))
+* handle extglobs (parentheses) containing separators ([7db1bdb](https://github.com/gulpjs/glob-parent/commit/7db1bdb0756e55fd14619e8ce31aa31b17b117fd))
+* new approach to braces/brackets handling ([8269bd8](https://github.com/gulpjs/glob-parent/commit/8269bd89290d99fac9395a354fb56fdcdb80f0be))
+* pre-process braces/brackets sections ([9ef8a87](https://github.com/gulpjs/glob-parent/commit/9ef8a87f66b1a43d0591e7a8e4fc5a18415ee388))
+* preserve escaped brace/bracket at end of string ([8cfb0ba](https://github.com/gulpjs/glob-parent/commit/8cfb0ba84202d51571340dcbaf61b79d16a26c76))
+
+
+### Bug Fixes
+
+* trailing escaped square brackets ([99ec9fe](https://github.com/gulpjs/glob-parent/commit/99ec9fecc60ee488ded20a94dd4f18b4f55c4ccf))
+
+### [3.0.1](https://github.com/gulpjs/glob-parent/compare/v3.0.0...v3.0.1) (2021-01-27)
+
+
+### Features
+
+* use path-dirname ponyfill ([cdbea5f](https://github.com/gulpjs/glob-parent/commit/cdbea5f32a58a54e001a75ddd7c0fccd4776aacc))
+
+
+### Bug Fixes
+
+* unescape glob-escaped dirnames on output ([598c533](https://github.com/gulpjs/glob-parent/commit/598c533bdf49c1428bc063aa9b8db40c5a86b030))
+
+## [3.0.0](https://github.com/gulpjs/glob-parent/compare/v2.0.0...v3.0.0) (2021-01-27)
+
+
+### ⚠ BREAKING CHANGES
+
+* update is-glob dependency
+
+### Features
+
+* update is-glob dependency ([5c5f8ef](https://github.com/gulpjs/glob-parent/commit/5c5f8efcee362a8e7638cf8220666acd8784f6bd))
+
+## [2.0.0](https://github.com/gulpjs/glob-parent/compare/v1.3.0...v2.0.0) (2021-01-27)
+
+
+### Features
+
+* move up to dirname regardless of glob characters ([f97fb83](https://github.com/gulpjs/glob-parent/commit/f97fb83be2e0a9fc8d3b760e789d2ecadd6aa0c2))
+
+## [1.3.0](https://github.com/gulpjs/glob-parent/compare/v1.2.0...v1.3.0) (2021-01-27)
+
+## [1.2.0](https://github.com/gulpjs/glob-parent/compare/v1.1.0...v1.2.0) (2021-01-27)
+
+
+### Reverts
+
+* feat: make regex test strings smaller ([dc80fa9](https://github.com/gulpjs/glob-parent/commit/dc80fa9658dca20549cfeba44bbd37d5246fcce0))
+
+## [1.1.0](https://github.com/gulpjs/glob-parent/compare/v1.0.0...v1.1.0) (2021-01-27)
+
+
+### Features
+
+* make regex test strings smaller ([cd83220](https://github.com/gulpjs/glob-parent/commit/cd832208638f45169f986d80fcf66e401f35d233))
+
+## 1.0.0 (2021-01-27)
+
diff --git a/src/main/webapp/com/css/sass/node_modules/glob-parent/LICENSE b/src/main/webapp/com/css/sass/node_modules/glob-parent/LICENSE
new file mode 100644
index 00000000..63222d7a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/glob-parent/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) 2015, 2019 Elan Shanker
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/glob-parent/README.md b/src/main/webapp/com/css/sass/node_modules/glob-parent/README.md
new file mode 100644
index 00000000..36a27938
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/glob-parent/README.md
@@ -0,0 +1,137 @@
+<p align="center">
+  <a href="https://gulpjs.com">
+    <img height="257" width="114" src="https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png">
+  </a>
+</p>
+
+# glob-parent
+
+[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Azure Pipelines Build Status][azure-pipelines-image]][azure-pipelines-url] [![Travis Build Status][travis-image]][travis-url] [![AppVeyor Build Status][appveyor-image]][appveyor-url] [![Coveralls Status][coveralls-image]][coveralls-url] [![Gitter chat][gitter-image]][gitter-url]
+
+Extract the non-magic parent path from a glob string.
+
+## Usage
+
+```js
+var globParent = require('glob-parent');
+
+globParent('path/to/*.js'); // 'path/to'
+globParent('/root/path/to/*.js'); // '/root/path/to'
+globParent('/*.js'); // '/'
+globParent('*.js'); // '.'
+globParent('**/*.js'); // '.'
+globParent('path/{to,from}'); // 'path'
+globParent('path/!(to|from)'); // 'path'
+globParent('path/?(to|from)'); // 'path'
+globParent('path/+(to|from)'); // 'path'
+globParent('path/*(to|from)'); // 'path'
+globParent('path/@(to|from)'); // 'path'
+globParent('path/**/*'); // 'path'
+
+// if provided a non-glob path, returns the nearest dir
+globParent('path/foo/bar.js'); // 'path/foo'
+globParent('path/foo/'); // 'path/foo'
+globParent('path/foo'); // 'path' (see issue #3 for details)
+```
+
+## API
+
+### `globParent(maybeGlobString, [options])`
+
+Takes a string and returns the part of the path before the glob begins. Be aware of Escaping rules and Limitations below.
+
+#### options
+
+```js
+{
+  // Disables the automatic conversion of slashes for Windows
+  flipBackslashes: true
+}
+```
+
+## Escaping
+
+The following characters have special significance in glob patterns and must be escaped if you want them to be treated as regular path characters:
+
+- `?` (question mark) unless used as a path segment alone
+- `*` (asterisk)
+- `|` (pipe)
+- `(` (opening parenthesis)
+- `)` (closing parenthesis)
+- `{` (opening curly brace)
+- `}` (closing curly brace)
+- `[` (opening bracket)
+- `]` (closing bracket)
+
+**Example**
+
+```js
+globParent('foo/[bar]/') // 'foo'
+globParent('foo/\\[bar]/') // 'foo/[bar]'
+```
+
+## Limitations
+
+### Braces & Brackets
+This library attempts a quick and imperfect method of determining which path
+parts have glob magic without fully parsing/lexing the pattern. There are some
+advanced use cases that can trip it up, such as nested braces where the outer
+pair is escaped and the inner one contains a path separator. If you find
+yourself in the unlikely circumstance of being affected by this or need to
+ensure higher-fidelity glob handling in your library, it is recommended that you
+pre-process your input with [expand-braces] and/or [expand-brackets].
+
+### Windows
+Backslashes are not valid path separators for globs. If a path with backslashes
+is provided anyway, for simple cases, glob-parent will replace the path
+separator for you and return the non-glob parent path (now with
+forward-slashes, which are still valid as Windows path separators).
+
+This cannot be used in conjunction with escape characters.
+
+```js
+// BAD
+globParent('C:\\Program Files \\(x86\\)\\*.ext') // 'C:/Program Files /(x86/)'
+
+// GOOD
+globParent('C:/Program Files\\(x86\\)/*.ext') // 'C:/Program Files (x86)'
+```
+
+If you are using escape characters for a pattern without path parts (i.e.
+relative to `cwd`), prefix with `./` to avoid confusing glob-parent.
+
+```js
+// BAD
+globParent('foo \\[bar]') // 'foo '
+globParent('foo \\[bar]*') // 'foo '
+
+// GOOD
+globParent('./foo \\[bar]') // 'foo [bar]'
+globParent('./foo \\[bar]*') // '.'
+```
+
+## License
+
+ISC
+
+[expand-braces]: https://github.com/jonschlinkert/expand-braces
+[expand-brackets]: https://github.com/jonschlinkert/expand-brackets
+
+[downloads-image]: https://img.shields.io/npm/dm/glob-parent.svg
+[npm-url]: https://www.npmjs.com/package/glob-parent
+[npm-image]: https://img.shields.io/npm/v/glob-parent.svg
+
+[azure-pipelines-url]: https://dev.azure.com/gulpjs/gulp/_build/latest?definitionId=2&branchName=master
+[azure-pipelines-image]: https://dev.azure.com/gulpjs/gulp/_apis/build/status/glob-parent?branchName=master
+
+[travis-url]: https://travis-ci.org/gulpjs/glob-parent
+[travis-image]: https://img.shields.io/travis/gulpjs/glob-parent.svg?label=travis-ci
+
+[appveyor-url]: https://ci.appveyor.com/project/gulpjs/glob-parent
+[appveyor-image]: https://img.shields.io/appveyor/ci/gulpjs/glob-parent.svg?label=appveyor
+
+[coveralls-url]: https://coveralls.io/r/gulpjs/glob-parent
+[coveralls-image]: https://img.shields.io/coveralls/gulpjs/glob-parent/master.svg
+
+[gitter-url]: https://gitter.im/gulpjs/gulp
+[gitter-image]: https://badges.gitter.im/gulpjs/gulp.svg
diff --git a/src/main/webapp/com/css/sass/node_modules/glob-parent/index.js b/src/main/webapp/com/css/sass/node_modules/glob-parent/index.js
new file mode 100644
index 00000000..09e257ea
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/glob-parent/index.js
@@ -0,0 +1,42 @@
+'use strict';
+
+var isGlob = require('is-glob');
+var pathPosixDirname = require('path').posix.dirname;
+var isWin32 = require('os').platform() === 'win32';
+
+var slash = '/';
+var backslash = /\\/g;
+var enclosure = /[\{\[].*[\}\]]$/;
+var globby = /(^|[^\\])([\{\[]|\([^\)]+$)/;
+var escaped = /\\([\!\*\?\|\[\]\(\)\{\}])/g;
+
+/**
+ * @param {string} str
+ * @param {Object} opts
+ * @param {boolean} [opts.flipBackslashes=true]
+ * @returns {string}
+ */
+module.exports = function globParent(str, opts) {
+  var options = Object.assign({ flipBackslashes: true }, opts);
+
+  // flip windows path separators
+  if (options.flipBackslashes && isWin32 && str.indexOf(slash) < 0) {
+    str = str.replace(backslash, slash);
+  }
+
+  // special case for strings ending in enclosure containing path separator
+  if (enclosure.test(str)) {
+    str += slash;
+  }
+
+  // preserves full path in case of trailing path separator
+  str += 'a';
+
+  // remove path parts that are globby
+  do {
+    str = pathPosixDirname(str);
+  } while (isGlob(str) || globby.test(str));
+
+  // remove escape chars and return result
+  return str.replace(escaped, '$1');
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/glob-parent/package.json b/src/main/webapp/com/css/sass/node_modules/glob-parent/package.json
new file mode 100644
index 00000000..125c971c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/glob-parent/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "glob-parent",
+  "version": "5.1.2",
+  "description": "Extract the non-magic parent path from a glob string.",
+  "author": "Gulp Team <team@gulpjs.com> (https://gulpjs.com/)",
+  "contributors": [
+    "Elan Shanker (https://github.com/es128)",
+    "Blaine Bublitz <blaine.bublitz@gmail.com>"
+  ],
+  "repository": "gulpjs/glob-parent",
+  "license": "ISC",
+  "engines": {
+    "node": ">= 6"
+  },
+  "main": "index.js",
+  "files": [
+    "LICENSE",
+    "index.js"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "pretest": "npm run lint",
+    "test": "nyc mocha --async-only",
+    "azure-pipelines": "nyc mocha --async-only --reporter xunit -O output=test.xunit",
+    "coveralls": "nyc report --reporter=text-lcov | coveralls"
+  },
+  "dependencies": {
+    "is-glob": "^4.0.1"
+  },
+  "devDependencies": {
+    "coveralls": "^3.0.11",
+    "eslint": "^2.13.1",
+    "eslint-config-gulp": "^3.0.1",
+    "expect": "^1.20.2",
+    "mocha": "^6.0.2",
+    "nyc": "^13.3.0"
+  },
+  "keywords": [
+    "glob",
+    "parent",
+    "strip",
+    "path",
+    "dirname",
+    "directory",
+    "base",
+    "wildcard"
+  ]
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/LICENSE b/src/main/webapp/com/css/sass/node_modules/immutable/LICENSE
new file mode 100644
index 00000000..1e3c4f39
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2014-present, Lee Byron and other contributors.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/README.md b/src/main/webapp/com/css/sass/node_modules/immutable/README.md
new file mode 100644
index 00000000..a6eae67d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/README.md
@@ -0,0 +1,761 @@
+# Immutable collections for JavaScript
+
+[![Build Status](https://github.com/immutable-js/immutable-js/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/immutable-js/immutable-js/actions/workflows/ci.yml?query=branch%3Amain) [Chat on slack](https://immutable-js.slack.com)
+
+[Read the docs](https://immutable-js.com/docs/) and eat your vegetables.
+
+Docs are automatically generated from [README.md][] and [immutable.d.ts][].
+Please contribute! Also, don't miss the [wiki][] which contains articles on
+additional specific topics. Can't find something? Open an [issue][].
+
+**Table of contents:**
+
+- [Introduction](#introduction)
+- [Getting started](#getting-started)
+- [The case for Immutability](#the-case-for-immutability)
+- [JavaScript-first API](#javascript-first-api)
+- [Nested Structures](#nested-structures)
+- [Equality treats Collections as Values](#equality-treats-collections-as-values)
+- [Batching Mutations](#batching-mutations)
+- [Lazy Seq](#lazy-seq)
+- [Additional Tools and Resources](#additional-tools-and-resources)
+- [Contributing](#contributing)
+
+## Introduction
+
+[Immutable][] data cannot be changed once created, leading to much simpler
+application development, no defensive copying, and enabling advanced memoization
+and change detection techniques with simple logic. [Persistent][] data presents
+a mutative API which does not update the data in-place, but instead always
+yields new updated data.
+
+Immutable.js provides many Persistent Immutable data structures including:
+`List`, `Stack`, `Map`, `OrderedMap`, `Set`, `OrderedSet` and `Record`.
+
+These data structures are highly efficient on modern JavaScript VMs by using
+structural sharing via [hash maps tries][] and [vector tries][] as popularized
+by Clojure and Scala, minimizing the need to copy or cache data.
+
+Immutable.js also provides a lazy `Seq`, allowing efficient
+chaining of collection methods like `map` and `filter` without creating
+intermediate representations. Create some `Seq` with `Range` and `Repeat`.
+
+Want to hear more? Watch the presentation about Immutable.js:
+
+[![Immutable Data and React](website/public/Immutable-Data-and-React-YouTube.png)](https://youtu.be/I7IdS-PbEgI)
+
+[README.md]: https://github.com/immutable-js/immutable-js/blob/main/README.md
+[immutable.d.ts]: https://github.com/immutable-js/immutable-js/blob/main/type-definitions/immutable.d.ts
+[wiki]: https://github.com/immutable-js/immutable-js/wiki
+[issue]: https://github.com/immutable-js/immutable-js/issues
+[Persistent]: https://en.wikipedia.org/wiki/Persistent_data_structure
+[Immutable]: https://en.wikipedia.org/wiki/Immutable_object
+[hash maps tries]: https://en.wikipedia.org/wiki/Hash_array_mapped_trie
+[vector tries]: https://hypirion.com/musings/understanding-persistent-vector-pt-1
+
+## Getting started
+
+Install `immutable` using npm.
+
+```shell
+# using npm
+npm install immutable
+
+# using Yarn
+yarn add immutable
+
+# using pnpm
+pnpm add immutable
+
+# using Bun
+bun add immutable
+```
+
+Then require it into any module.
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3 });
+const map2 = map1.set('b', 50);
+map1.get('b') + ' vs. ' + map2.get('b'); // 2 vs. 50
+```
+
+### Browser
+
+Immutable.js has no dependencies, which makes it predictable to include in a Browser.
+
+It's highly recommended to use a module bundler like [webpack](https://webpack.github.io/),
+[rollup](https://rollupjs.org/), or
+[browserify](https://browserify.org/). The `immutable` npm module works
+without any additional consideration. All examples throughout the documentation
+will assume use of this kind of tool.
+
+Alternatively, Immutable.js may be directly included as a script tag. Download
+or link to a CDN such as [CDNJS](https://cdnjs.com/libraries/immutable)
+or [jsDelivr](https://www.jsdelivr.com/package/npm/immutable).
+
+Use a script tag to directly add `Immutable` to the global scope:
+
+```html
+<script src="immutable.min.js"></script>
+<script>
+  var map1 = Immutable.Map({ a: 1, b: 2, c: 3 });
+  var map2 = map1.set('b', 50);
+  map1.get('b'); // 2
+  map2.get('b'); // 50
+</script>
+```
+
+Or use an AMD-style loader (such as [RequireJS](https://requirejs.org/)):
+
+```js
+require(['./immutable.min.js'], function (Immutable) {
+  var map1 = Immutable.Map({ a: 1, b: 2, c: 3 });
+  var map2 = map1.set('b', 50);
+  map1.get('b'); // 2
+  map2.get('b'); // 50
+});
+```
+
+### Flow & TypeScript
+
+Use these Immutable collections and sequences as you would use native
+collections in your [Flowtype](https://flowtype.org/) or [TypeScript](https://typescriptlang.org) programs while still taking
+advantage of type generics, error detection, and auto-complete in your IDE.
+
+Installing `immutable` via npm brings with it type definitions for Flow (v0.55.0 or higher)
+and TypeScript (v2.1.0 or higher), so you shouldn't need to do anything at all!
+
+#### Using TypeScript with Immutable.js v4
+
+Immutable.js type definitions embrace ES2015. While Immutable.js itself supports
+legacy browsers and environments, its type definitions require TypeScript's 2015
+lib. Include either `"target": "es2015"` or `"lib": "es2015"` in your
+`tsconfig.json`, or provide `--target es2015` or `--lib es2015` to the
+`tsc` command.
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3 });
+const map2 = map1.set('b', 50);
+map1.get('b') + ' vs. ' + map2.get('b'); // 2 vs. 50
+```
+
+#### Using TypeScript with Immutable.js v3 and earlier:
+
+Previous versions of Immutable.js include a reference file which you can include
+via relative path to the type definitions at the top of your file.
+
+```js
+///<reference path='./node_modules/immutable/dist/immutable.d.ts'/>
+import Immutable from 'immutable';
+var map1: Immutable.Map<string, number>;
+map1 = Immutable.Map({ a: 1, b: 2, c: 3 });
+var map2 = map1.set('b', 50);
+map1.get('b'); // 2
+map2.get('b'); // 50
+```
+
+## The case for Immutability
+
+Much of what makes application development difficult is tracking mutation and
+maintaining state. Developing with immutable data encourages you to think
+differently about how data flows through your application.
+
+Subscribing to data events throughout your application creates a huge overhead of
+book-keeping which can hurt performance, sometimes dramatically, and creates
+opportunities for areas of your application to get out of sync with each other
+due to easy to make programmer error. Since immutable data never changes,
+subscribing to changes throughout the model is a dead-end and new data can only
+ever be passed from above.
+
+This model of data flow aligns well with the architecture of [React][]
+and especially well with an application designed using the ideas of [Flux][].
+
+When data is passed from above rather than being subscribed to, and you're only
+interested in doing work when something has changed, you can use equality.
+
+Immutable collections should be treated as _values_ rather than _objects_. While
+objects represent some thing which could change over time, a value represents
+the state of that thing at a particular instance of time. This principle is most
+important to understanding the appropriate use of immutable data. In order to
+treat Immutable.js collections as values, it's important to use the
+`Immutable.is()` function or `.equals()` method to determine _value equality_
+instead of the `===` operator which determines object _reference identity_.
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3 });
+const map2 = Map({ a: 1, b: 2, c: 3 });
+map1.equals(map2); // true
+map1 === map2; // false
+```
+
+Note: As a performance optimization Immutable.js attempts to return the existing
+collection when an operation would result in an identical collection, allowing
+for using `===` reference equality to determine if something definitely has not
+changed. This can be extremely useful when used within a memoization function
+which would prefer to re-run the function if a deeper equality check could
+potentially be more costly. The `===` equality check is also used internally by
+`Immutable.is` and `.equals()` as a performance optimization.
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3 });
+const map2 = map1.set('b', 2); // Set to same value
+map1 === map2; // true
+```
+
+If an object is immutable, it can be "copied" simply by making another reference
+to it instead of copying the entire object. Because a reference is much smaller
+than the object itself, this results in memory savings and a potential boost in
+execution speed for programs which rely on copies (such as an undo-stack).
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const map = Map({ a: 1, b: 2, c: 3 });
+const mapCopy = map; // Look, "copies" are free!
+```
+
+[React]: https://reactjs.org/
+[Flux]: https://facebook.github.io/flux/docs/in-depth-overview/
+
+
+## JavaScript-first API
+
+While Immutable.js is inspired by Clojure, Scala, Haskell and other functional
+programming environments, it's designed to bring these powerful concepts to
+JavaScript, and therefore has an Object-Oriented API that closely mirrors that
+of [ES2015][] [Array][], [Map][], and [Set][].
+
+[es2015]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/New_in_JavaScript/ECMAScript_6_support_in_Mozilla
+[array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
+[map]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
+[set]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set
+
+The difference for the immutable collections is that methods which would mutate
+the collection, like `push`, `set`, `unshift` or `splice`, instead return a new
+immutable collection. Methods which return new arrays, like `slice` or `concat`,
+instead return new immutable collections.
+
+<!-- runkit:activate -->
+
+```js
+const { List } = require('immutable');
+const list1 = List([1, 2]);
+const list2 = list1.push(3, 4, 5);
+const list3 = list2.unshift(0);
+const list4 = list1.concat(list2, list3);
+assert.equal(list1.size, 2);
+assert.equal(list2.size, 5);
+assert.equal(list3.size, 6);
+assert.equal(list4.size, 13);
+assert.equal(list4.get(0), 1);
+```
+
+Almost all of the methods on [Array][] will be found in similar form on
+`Immutable.List`, those of [Map][] found on `Immutable.Map`, and those of [Set][]
+found on `Immutable.Set`, including collection operations like `forEach()`
+and `map()`.
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const alpha = Map({ a: 1, b: 2, c: 3, d: 4 });
+alpha.map((v, k) => k.toUpperCase()).join();
+// 'A,B,C,D'
+```
+
+### Convert from raw JavaScript objects and arrays.
+
+Designed to inter-operate with your existing JavaScript, Immutable.js
+accepts plain JavaScript Arrays and Objects anywhere a method expects a
+`Collection`.
+
+<!-- runkit:activate -->
+
+```js
+const { Map, List } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3, d: 4 });
+const map2 = Map({ c: 10, a: 20, t: 30 });
+const obj = { d: 100, o: 200, g: 300 };
+const map3 = map1.merge(map2, obj);
+// Map { a: 20, b: 2, c: 10, d: 100, t: 30, o: 200, g: 300 }
+const list1 = List([1, 2, 3]);
+const list2 = List([4, 5, 6]);
+const array = [7, 8, 9];
+const list3 = list1.concat(list2, array);
+// List [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
+```
+
+This is possible because Immutable.js can treat any JavaScript Array or Object
+as a Collection. You can take advantage of this in order to get sophisticated
+collection methods on JavaScript Objects, which otherwise have a very sparse
+native API. Because Seq evaluates lazily and does not cache intermediate
+results, these operations can be extremely efficient.
+
+<!-- runkit:activate -->
+
+```js
+const { Seq } = require('immutable');
+const myObject = { a: 1, b: 2, c: 3 };
+Seq(myObject)
+  .map(x => x * x)
+  .toObject();
+// { a: 1, b: 4, c: 9 }
+```
+
+Keep in mind, when using JS objects to construct Immutable Maps, that
+JavaScript Object properties are always strings, even if written in a quote-less
+shorthand, while Immutable Maps accept keys of any type.
+
+<!-- runkit:activate -->
+
+```js
+const { fromJS } = require('immutable');
+
+const obj = { 1: 'one' };
+console.log(Object.keys(obj)); // [ "1" ]
+console.log(obj['1'], obj[1]); // "one", "one"
+
+const map = fromJS(obj);
+console.log(map.get('1'), map.get(1)); // "one", undefined
+```
+
+Property access for JavaScript Objects first converts the key to a string, but
+since Immutable Map keys can be of any type the argument to `get()` is
+not altered.
+
+### Converts back to raw JavaScript objects.
+
+All Immutable.js Collections can be converted to plain JavaScript Arrays and
+Objects shallowly with `toArray()` and `toObject()` or deeply with `toJS()`.
+All Immutable Collections also implement `toJSON()` allowing them to be passed
+to `JSON.stringify` directly. They also respect the custom `toJSON()` methods of
+nested objects.
+
+<!-- runkit:activate -->
+
+```js
+const { Map, List } = require('immutable');
+const deep = Map({ a: 1, b: 2, c: List([3, 4, 5]) });
+console.log(deep.toObject()); // { a: 1, b: 2, c: List [ 3, 4, 5 ] }
+console.log(deep.toArray()); // [ 1, 2, List [ 3, 4, 5 ] ]
+console.log(deep.toJS()); // { a: 1, b: 2, c: [ 3, 4, 5 ] }
+JSON.stringify(deep); // '{"a":1,"b":2,"c":[3,4,5]}'
+```
+
+### Embraces ES2015
+
+Immutable.js supports all JavaScript environments, including legacy
+browsers (even IE11). However it also takes advantage of features added to
+JavaScript in [ES2015][], the latest standard version of JavaScript, including
+[Iterators][], [Arrow Functions][], [Classes][], and [Modules][]. It's inspired
+by the native [Map][] and [Set][] collections added to ES2015.
+
+All examples in the Documentation are presented in ES2015. To run in all
+browsers, they need to be translated to ES5.
+
+```js
+// ES2015
+const mapped = foo.map(x => x * x);
+// ES5
+var mapped = foo.map(function (x) {
+  return x * x;
+});
+```
+
+All Immutable.js collections are [Iterable][iterators], which allows them to be
+used anywhere an Iterable is expected, such as when spreading into an Array.
+
+<!-- runkit:activate -->
+
+```js
+const { List } = require('immutable');
+const aList = List([1, 2, 3]);
+const anArray = [0, ...aList, 4, 5]; // [ 0, 1, 2, 3, 4, 5 ]
+```
+
+Note: A Collection is always iterated in the same order, however that order may
+not always be well defined, as is the case for the `Map` and `Set`.
+
+[Iterators]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/The_Iterator_protocol
+[Arrow Functions]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/Arrow_functions
+[Classes]: https://wiki.ecmascript.org/doku.php?id=strawman:maximally_minimal_classes
+[Modules]: https://www.2ality.com/2014/09/es6-modules-final.html
+
+
+## Nested Structures
+
+The collections in Immutable.js are intended to be nested, allowing for deep
+trees of data, similar to JSON.
+
+<!-- runkit:activate -->
+
+```js
+const { fromJS } = require('immutable');
+const nested = fromJS({ a: { b: { c: [3, 4, 5] } } });
+// Map { a: Map { b: Map { c: List [ 3, 4, 5 ] } } }
+```
+
+A few power-tools allow for reading and operating on nested data. The
+most useful are `mergeDeep`, `getIn`, `setIn`, and `updateIn`, found on `List`,
+`Map` and `OrderedMap`.
+
+<!-- runkit:activate -->
+
+```js
+const { fromJS } = require('immutable');
+const nested = fromJS({ a: { b: { c: [3, 4, 5] } } });
+
+const nested2 = nested.mergeDeep({ a: { b: { d: 6 } } });
+// Map { a: Map { b: Map { c: List [ 3, 4, 5 ], d: 6 } } }
+
+console.log(nested2.getIn(['a', 'b', 'd'])); // 6
+
+const nested3 = nested2.updateIn(['a', 'b', 'd'], value => value + 1);
+console.log(nested3);
+// Map { a: Map { b: Map { c: List [ 3, 4, 5 ], d: 7 } } }
+
+const nested4 = nested3.updateIn(['a', 'b', 'c'], list => list.push(6));
+// Map { a: Map { b: Map { c: List [ 3, 4, 5, 6 ], d: 7 } } }
+```
+
+## Equality treats Collections as Values
+
+Immutable.js collections are treated as pure data _values_. Two immutable
+collections are considered _value equal_ (via `.equals()` or `is()`) if they
+represent the same collection of values. This differs from JavaScript's typical
+_reference equal_ (via `===` or `==`) for Objects and Arrays which only
+determines if two variables represent references to the same object instance.
+
+Consider the example below where two identical `Map` instances are not
+_reference equal_ but are _value equal_.
+
+<!-- runkit:activate -->
+
+```js
+// First consider:
+const obj1 = { a: 1, b: 2, c: 3 };
+const obj2 = { a: 1, b: 2, c: 3 };
+obj1 !== obj2; // two different instances are always not equal with ===
+
+const { Map, is } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3 });
+const map2 = Map({ a: 1, b: 2, c: 3 });
+map1 !== map2; // two different instances are not reference-equal
+map1.equals(map2); // but are value-equal if they have the same values
+is(map1, map2); // alternatively can use the is() function
+```
+
+Value equality allows Immutable.js collections to be used as keys in Maps or
+values in Sets, and retrieved with different but equivalent collections:
+
+<!-- runkit:activate -->
+
+```js
+const { Map, Set } = require('immutable');
+const map1 = Map({ a: 1, b: 2, c: 3 });
+const map2 = Map({ a: 1, b: 2, c: 3 });
+const set = Set().add(map1);
+set.has(map2); // true because these are value-equal
+```
+
+Note: `is()` uses the same measure of equality as [Object.is][] for scalar
+strings and numbers, but uses value equality for Immutable collections,
+determining if both are immutable and all keys and values are equal
+using the same measure of equality.
+
+[object.is]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
+
+#### Performance tradeoffs
+
+While value equality is useful in many circumstances, it has different
+performance characteristics than reference equality. Understanding these
+tradeoffs may help you decide which to use in each case, especially when used
+to memoize some operation.
+
+When comparing two collections, value equality may require considering every
+item in each collection, on an `O(N)` time complexity. For large collections of
+values, this could become a costly operation. Though if the two are not equal
+and hardly similar, the inequality is determined very quickly. In contrast, when
+comparing two collections with reference equality, only the initial references
+to memory need to be compared which is not based on the size of the collections,
+which has an `O(1)` time complexity. Checking reference equality is always very
+fast, however just because two collections are not reference-equal does not rule
+out the possibility that they may be value-equal.
+
+#### Return self on no-op optimization
+
+When possible, Immutable.js avoids creating new objects for updates where no
+change in _value_ occurred, to allow for efficient _reference equality_ checking
+to quickly determine if no change occurred.
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const originalMap = Map({ a: 1, b: 2, c: 3 });
+const updatedMap = originalMap.set('b', 2);
+updatedMap === originalMap; // No-op .set() returned the original reference.
+```
+
+However updates which do result in a change will return a new reference. Each
+of these operations occur independently, so two similar updates will not return
+the same reference:
+
+<!-- runkit:activate -->
+
+```js
+const { Map } = require('immutable');
+const originalMap = Map({ a: 1, b: 2, c: 3 });
+const updatedMap = originalMap.set('b', 1000);
+// New instance, leaving the original immutable.
+updatedMap !== originalMap;
+const anotherUpdatedMap = originalMap.set('b', 1000);
+// Despite both the results of the same operation, each created a new reference.
+anotherUpdatedMap !== updatedMap;
+// However the two are value equal.
+anotherUpdatedMap.equals(updatedMap);
+```
+
+## Batching Mutations
+
+> If a tree falls in the woods, does it make a sound?
+>
+> If a pure function mutates some local data in order to produce an immutable
+> return value, is that ok?
+>
+> — Rich Hickey, Clojure
+
+Applying a mutation to create a new immutable object results in some overhead,
+which can add up to a minor performance penalty. If you need to apply a series
+of mutations locally before returning, Immutable.js gives you the ability to
+create a temporary mutable (transient) copy of a collection and apply a batch of
+mutations in a performant manner by using `withMutations`. In fact, this is
+exactly how Immutable.js applies complex mutations itself.
+
+As an example, building `list2` results in the creation of 1, not 3, new
+immutable Lists.
+
+<!-- runkit:activate -->
+
+```js
+const { List } = require('immutable');
+const list1 = List([1, 2, 3]);
+const list2 = list1.withMutations(function (list) {
+  list.push(4).push(5).push(6);
+});
+assert.equal(list1.size, 3);
+assert.equal(list2.size, 6);
+```
+
+Note: Immutable.js also provides `asMutable` and `asImmutable`, but only
+encourages their use when `withMutations` will not suffice. Use caution to not
+return a mutable copy, which could result in undesired behavior.
+
+_Important!_: Only a select few methods can be used in `withMutations` including
+`set`, `push` and `pop`. These methods can be applied directly against a
+persistent data-structure where other methods like `map`, `filter`, `sort`,
+and `splice` will always return new immutable data-structures and never mutate
+a mutable collection.
+
+## Lazy Seq
+
+`Seq` describes a lazy operation, allowing them to efficiently chain
+use of all the higher-order collection methods (such as `map` and `filter`)
+by not creating intermediate collections.
+
+**Seq is immutable** — Once a Seq is created, it cannot be
+changed, appended to, rearranged or otherwise modified. Instead, any mutative
+method called on a `Seq` will return a new `Seq`.
+
+**Seq is lazy** — `Seq` does as little work as necessary to respond to any
+method call. Values are often created during iteration, including implicit
+iteration when reducing or converting to a concrete data structure such as
+a `List` or JavaScript `Array`.
+
+For example, the following performs no work, because the resulting
+`Seq`'s values are never iterated:
+
+```js
+const { Seq } = require('immutable');
+const oddSquares = Seq([1, 2, 3, 4, 5, 6, 7, 8])
+  .filter(x => x % 2 !== 0)
+  .map(x => x * x);
+```
+
+Once the `Seq` is used, it performs only the work necessary. In this
+example, no intermediate arrays are ever created, filter is called three
+times, and map is only called once:
+
+```js
+oddSquares.get(1); // 9
+```
+
+Any collection can be converted to a lazy Seq with `Seq()`.
+
+<!-- runkit:activate -->
+
+```js
+const { Map, Seq } = require('immutable');
+const map = Map({ a: 1, b: 2, c: 3 });
+const lazySeq = Seq(map);
+```
+
+`Seq` allows for the efficient chaining of operations, allowing for the
+expression of logic that can otherwise be very tedious:
+
+```js
+lazySeq
+  .flip()
+  .map(key => key.toUpperCase())
+  .flip();
+// Seq { A: 1, B: 2, C: 3 }
+```
+
+As well as expressing logic that would otherwise seem memory or time
+limited, for example `Range` is a special kind of Lazy sequence.
+
+<!-- runkit:activate -->
+
+```js
+const { Range } = require('immutable');
+Range(1, Infinity)
+  .skip(1000)
+  .map(n => -n)
+  .filter(n => n % 2 === 0)
+  .take(2)
+  .reduce((r, n) => r * n, 1);
+// 1006008
+```
+
+## Comparison of filter(), groupBy(), and partition()
+
+The `filter()`, `groupBy()`, and `partition()` methods are similar in that they
+all divide a collection into parts based on applying a function to each element.
+All three call the predicate or grouping function once for each item in the
+input collection.  All three return zero or more collections of the same type as
+their input.  The returned collections are always distinct from the input
+(according to `===`), even if the contents are identical.
+
+Of these methods, `filter()` is the only one that is lazy and the only one which
+discards items from the input collection. It is the simplest to use, and the
+fact that it returns exactly one collection makes it easy to combine with other
+methods to form a pipeline of operations.
+
+The `partition()` method is similar to an eager version of `filter()`, but it
+returns two collections; the first contains the items that would have been
+discarded by `filter()`, and the second contains the items that would have been
+kept.  It always returns an array of exactly two collections, which can make it
+easier to use than `groupBy()`.  Compared to making two separate calls to
+`filter()`, `partition()` makes half as many calls it the predicate passed to
+it.
+
+The `groupBy()` method is a more generalized version of `partition()` that can
+group by an arbitrary function rather than just a predicate.  It returns a map
+with zero or more entries, where the keys are the values returned by the
+grouping function, and the values are nonempty collections of the corresponding
+arguments.  Although `groupBy()` is more powerful than `partition()`, it can be
+harder to use because it is not always possible predict in advance how many
+entries the returned map will have and what their keys will be.
+
+| Summary                       | `filter` | `partition` | `groupBy`      |
+|:------------------------------|:---------|:------------|:---------------|
+| ease of use                   | easiest  | moderate    | hardest        |
+| generality                    | least    | moderate    | most           |
+| laziness                      | lazy     | eager       | eager          |
+| # of returned sub-collections | 1        | 2           | 0 or more      |
+| sub-collections may be empty  | yes      | yes         | no             |
+| can discard items             | yes      | no          | no             |
+| wrapping container            | none     | array       | Map/OrderedMap |
+
+## Additional Tools and Resources
+
+- [Atom-store](https://github.com/jameshopkins/atom-store/)
+  - A Clojure-inspired atom implementation in Javascript with configurability
+    for external persistance.
+
+- [Chai Immutable](https://github.com/astorije/chai-immutable)
+  - If you are using the [Chai Assertion Library](https://chaijs.com/), this
+    provides a set of assertions to use against Immutable.js collections.
+
+- [Fantasy-land](https://github.com/fantasyland/fantasy-land)
+  - Specification for interoperability of common algebraic structures in JavaScript.
+
+- [Immutagen](https://github.com/pelotom/immutagen)
+  - A library for simulating immutable generators in JavaScript.
+
+- [Immutable-cursor](https://github.com/redbadger/immutable-cursor)
+  - Immutable cursors incorporating the Immutable.js interface over
+  Clojure-inspired atom.
+
+- [Immutable-ext](https://github.com/DrBoolean/immutable-ext)
+  - Fantasyland extensions for immutablejs
+
+- [Immutable-js-tools](https://github.com/madeinfree/immutable-js-tools)
+  - Util tools for immutable.js
+
+- [Immutable-Redux](https://github.com/gajus/redux-immutable)
+  - redux-immutable is used to create an equivalent function of Redux
+  combineReducers that works with Immutable.js state.
+
+- [Immutable-Treeutils](https://github.com/lukasbuenger/immutable-treeutils)
+  - Functional tree traversal helpers for ImmutableJS data structures.
+
+- [Irecord](https://github.com/ericelliott/irecord)
+  - An immutable store that exposes an RxJS observable. Great for React.
+
+- [Mudash](https://github.com/brianneisler/mudash)
+  - Lodash wrapper providing Immutable.JS support.
+
+- [React-Immutable-PropTypes](https://github.com/HurricaneJames/react-immutable-proptypes)
+  - PropType validators that work with Immutable.js.
+
+- [Redux-Immutablejs](https://github.com/indexiatech/redux-immutablejs)
+  - Redux Immutable facilities.
+
+- [Rxstate](https://github.com/yamalight/rxstate)
+  - Simple opinionated state management library based on RxJS and Immutable.js.
+
+- [Transit-Immutable-js](https://github.com/glenjamin/transit-immutable-js)
+  - Transit serialisation for Immutable.js.
+  - See also: [Transit-js](https://github.com/cognitect/transit-js)
+
+Have an additional tool designed to work with Immutable.js?
+Submit a PR to add it to this list in alphabetical order.
+
+## Contributing
+
+Use [Github issues](https://github.com/immutable-js/immutable-js/issues) for requests.
+
+We actively welcome pull requests, learn how to [contribute](https://github.com/immutable-js/immutable-js/blob/main/.github/CONTRIBUTING.md).
+
+Immutable.js is maintained within the [Contributor Covenant's Code of Conduct](https://www.contributor-covenant.org/version/2/0/code_of_conduct/).
+
+### Changelog
+
+Changes are tracked as [Github releases](https://github.com/immutable-js/immutable-js/releases).
+
+### License
+
+Immutable.js is [MIT-licensed](./LICENSE).
+
+### Thanks
+
+[Phil Bagwell](https://www.youtube.com/watch?v=K2NYwP90bNs), for his inspiration
+and research in persistent data structures.
+
+[Hugh Jackson](https://github.com/hughfdjackson/), for providing the npm package
+name. If you're looking for his unsupported package, see [this repository](https://github.com/hughfdjackson/immutable).
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.d.ts b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.d.ts
new file mode 100644
index 00000000..dc2b2454
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.d.ts
@@ -0,0 +1,5912 @@
+/**
+ * Immutable data encourages pure functions (data-in, data-out) and lends itself
+ * to much simpler application development and enabling techniques from
+ * functional programming such as lazy evaluation.
+ *
+ * While designed to bring these powerful functional concepts to JavaScript, it
+ * presents an Object-Oriented API familiar to Javascript engineers and closely
+ * mirroring that of Array, Map, and Set. It is easy and efficient to convert to
+ * and from plain Javascript types.
+ *
+ * ## How to read these docs
+ *
+ * In order to better explain what kinds of values the Immutable.js API expects
+ * and produces, this documentation is presented in a statically typed dialect of
+ * JavaScript (like [Flow][] or [TypeScript][]). You *don't need* to use these
+ * type checking tools in order to use Immutable.js, however becoming familiar
+ * with their syntax will help you get a deeper understanding of this API.
+ *
+ * **A few examples and how to read them.**
+ *
+ * All methods describe the kinds of data they accept and the kinds of data
+ * they return. For example a function which accepts two numbers and returns
+ * a number would look like this:
+ *
+ * ```js
+ * sum(first: number, second: number): number
+ * ```
+ *
+ * Sometimes, methods can accept different kinds of data or return different
+ * kinds of data, and this is described with a *type variable*, which is
+ * typically in all-caps. For example, a function which always returns the same
+ * kind of data it was provided would look like this:
+ *
+ * ```js
+ * identity<T>(value: T): T
+ * ```
+ *
+ * Type variables are defined with classes and referred to in methods. For
+ * example, a class that holds onto a value for you might look like this:
+ *
+ * ```js
+ * class Box<T> {
+ *   constructor(value: T)
+ *   getValue(): T
+ * }
+ * ```
+ *
+ * In order to manipulate Immutable data, methods that we're used to affecting
+ * a Collection instead return a new Collection of the same type. The type
+ * `this` refers to the same kind of class. For example, a List which returns
+ * new Lists when you `push` a value onto it might look like:
+ *
+ * ```js
+ * class List<T> {
+ *   push(value: T): this
+ * }
+ * ```
+ *
+ * Many methods in Immutable.js accept values which implement the JavaScript
+ * [Iterable][] protocol, and might appear like `Iterable<string>` for something
+ * which represents sequence of strings. Typically in JavaScript we use plain
+ * Arrays (`[]`) when an Iterable is expected, but also all of the Immutable.js
+ * collections are iterable themselves!
+ *
+ * For example, to get a value deep within a structure of data, we might use
+ * `getIn` which expects an `Iterable` path:
+ *
+ * ```
+ * getIn(path: Iterable<string | number>): unknown
+ * ```
+ *
+ * To use this method, we could pass an array: `data.getIn([ "key", 2 ])`.
+ *
+ *
+ * Note: All examples are presented in the modern [ES2015][] version of
+ * JavaScript. Use tools like Babel to support older browsers.
+ *
+ * For example:
+ *
+ * ```js
+ * // ES2015
+ * const mappedFoo = foo.map(x => x * x);
+ * // ES5
+ * var mappedFoo = foo.map(function (x) { return x * x; });
+ * ```
+ *
+ * [ES2015]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/New_in_JavaScript/ECMAScript_6_support_in_Mozilla
+ * [TypeScript]: https://www.typescriptlang.org/
+ * [Flow]: https://flowtype.org/
+ * [Iterable]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
+ */
+
+declare namespace Immutable {
+  /** @ignore */
+  type OnlyObject<T> = Extract<T, object>;
+
+  /** @ignore */
+  type ContainObject<T> = OnlyObject<T> extends object
+    ? OnlyObject<T> extends never
+      ? false
+      : true
+    : false;
+
+  /**
+   * @ignore
+   *
+   * Used to convert deeply all immutable types to a plain TS type.
+   * Using `unknown` on object instead of recursive call as we have a circular reference issue
+   */
+  export type DeepCopy<T> = T extends Record<infer R>
+    ? // convert Record to DeepCopy plain JS object
+      {
+        [key in keyof R]: ContainObject<R[key]> extends true ? unknown : R[key];
+      }
+    : T extends Collection.Keyed<infer KeyedKey, infer V>
+    ? // convert KeyedCollection to DeepCopy plain JS object
+      {
+        [key in KeyedKey extends string | number | symbol
+          ? KeyedKey
+          : string]: V extends object ? unknown : V;
+      }
+    : // convert IndexedCollection or Immutable.Set to DeepCopy plain JS array
+    T extends Collection<infer _, infer V>
+    ? Array<DeepCopy<V>>
+    : T extends string | number // Iterable scalar types : should be kept as is
+    ? T
+    : T extends Iterable<infer V> // Iterable are converted to plain JS array
+    ? Array<DeepCopy<V>>
+    : T extends object // plain JS object are converted deeply
+    ? {
+        [ObjectKey in keyof T]: ContainObject<T[ObjectKey]> extends true
+          ? unknown
+          : T[ObjectKey];
+      }
+    : // other case : should be kept as is
+      T;
+
+  /**
+   * Describes which item in a pair should be placed first when sorting
+   *
+   * @ignore
+   */
+  export enum PairSorting {
+    LeftThenRight = -1,
+    RightThenLeft = +1,
+  }
+
+  /**
+   * Function comparing two items of the same type. It can return:
+   *
+   * * a PairSorting value, to indicate whether the left-hand item or the right-hand item should be placed before the other
+   *
+   * * the traditional numeric return value - especially -1, 0, or 1
+   *
+   * @ignore
+   */
+  export type Comparator<T> = (left: T, right: T) => PairSorting | number;
+
+  /**
+   * Lists are ordered indexed dense collections, much like a JavaScript
+   * Array.
+   *
+   * Lists are immutable and fully persistent with O(log32 N) gets and sets,
+   * and O(1) push and pop.
+   *
+   * Lists implement Deque, with efficient addition and removal from both the
+   * end (`push`, `pop`) and beginning (`unshift`, `shift`).
+   *
+   * Unlike a JavaScript Array, there is no distinction between an
+   * "unset" index and an index set to `undefined`. `List#forEach` visits all
+   * indices from 0 to size, regardless of whether they were explicitly defined.
+   */
+  namespace List {
+    /**
+     * True if the provided value is a List
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable');
+     * List.isList([]); // false
+     * List.isList(List()); // true
+     * ```
+     */
+    function isList(maybeList: unknown): maybeList is List<unknown>;
+
+    /**
+     * Creates a new List containing `values`.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable');
+     * List.of(1, 2, 3, 4)
+     * // List [ 1, 2, 3, 4 ]
+     * ```
+     *
+     * Note: Values are not altered or converted in any way.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable');
+     * List.of({x:1}, 2, [3], 4)
+     * // List [ { x: 1 }, 2, [ 3 ], 4 ]
+     * ```
+     */
+    function of<T>(...values: Array<T>): List<T>;
+  }
+
+  /**
+   * Create a new immutable List containing the values of the provided
+   * collection-like.
+   *
+   * Note: `List` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { List, Set } = require('immutable')
+   *
+   * const emptyList = List()
+   * // List []
+   *
+   * const plainArray = [ 1, 2, 3, 4 ]
+   * const listFromPlainArray = List(plainArray)
+   * // List [ 1, 2, 3, 4 ]
+   *
+   * const plainSet = Set([ 1, 2, 3, 4 ])
+   * const listFromPlainSet = List(plainSet)
+   * // List [ 1, 2, 3, 4 ]
+   *
+   * const arrayIterator = plainArray[Symbol.iterator]()
+   * const listFromCollectionArray = List(arrayIterator)
+   * // List [ 1, 2, 3, 4 ]
+   *
+   * listFromPlainArray.equals(listFromCollectionArray) // true
+   * listFromPlainSet.equals(listFromCollectionArray) // true
+   * listFromPlainSet.equals(listFromPlainArray) // true
+   * ```
+   */
+  function List<T>(collection?: Iterable<T> | ArrayLike<T>): List<T>;
+
+  interface List<T> extends Collection.Indexed<T> {
+    /**
+     * The number of items in this List.
+     */
+    readonly size: number;
+
+    // Persistent changes
+
+    /**
+     * Returns a new List which includes `value` at `index`. If `index` already
+     * exists in this List, it will be replaced.
+     *
+     * `index` may be a negative number, which indexes back from the end of the
+     * List. `v.set(-1, "value")` sets the last item in the List.
+     *
+     * If `index` larger than `size`, the returned List's `size` will be large
+     * enough to include the `index`.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * const originalList = List([ 0 ]);
+     * // List [ 0 ]
+     * originalList.set(1, 1);
+     * // List [ 0, 1 ]
+     * originalList.set(0, 'overwritten');
+     * // List [ "overwritten" ]
+     * originalList.set(2, 2);
+     * // List [ 0, undefined, 2 ]
+     *
+     * List().set(50000, 'value').size;
+     * // 50001
+     * ```
+     *
+     * Note: `set` can be used in `withMutations`.
+     */
+    set(index: number, value: T): List<T>;
+
+    /**
+     * Returns a new List which excludes this `index` and with a size 1 less
+     * than this List. Values at indices above `index` are shifted down by 1 to
+     * fill the position.
+     *
+     * This is synonymous with `list.splice(index, 1)`.
+     *
+     * `index` may be a negative number, which indexes back from the end of the
+     * List. `v.delete(-1)` deletes the last item in the List.
+     *
+     * Note: `delete` cannot be safely used in IE8
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 0, 1, 2, 3, 4 ]).delete(0);
+     * // List [ 1, 2, 3, 4 ]
+     * ```
+     *
+     * Since `delete()` re-indexes values, it produces a complete copy, which
+     * has `O(N)` complexity.
+     *
+     * Note: `delete` *cannot* be used in `withMutations`.
+     *
+     * @alias remove
+     */
+    delete(index: number): List<T>;
+    remove(index: number): List<T>;
+
+    /**
+     * Returns a new List with `value` at `index` with a size 1 more than this
+     * List. Values at indices above `index` are shifted over by 1.
+     *
+     * This is synonymous with `list.splice(index, 0, value)`.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 0, 1, 2, 3, 4 ]).insert(6, 5)
+     * // List [ 0, 1, 2, 3, 4, 5 ]
+     * ```
+     *
+     * Since `insert()` re-indexes values, it produces a complete copy, which
+     * has `O(N)` complexity.
+     *
+     * Note: `insert` *cannot* be used in `withMutations`.
+     */
+    insert(index: number, value: T): List<T>;
+
+    /**
+     * Returns a new List with 0 size and no values in constant time.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 1, 2, 3, 4 ]).clear()
+     * // List []
+     * ```
+     *
+     * Note: `clear` can be used in `withMutations`.
+     */
+    clear(): List<T>;
+
+    /**
+     * Returns a new List with the provided `values` appended, starting at this
+     * List's `size`.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 1, 2, 3, 4 ]).push(5)
+     * // List [ 1, 2, 3, 4, 5 ]
+     * ```
+     *
+     * Note: `push` can be used in `withMutations`.
+     */
+    push(...values: Array<T>): List<T>;
+
+    /**
+     * Returns a new List with a size ones less than this List, excluding
+     * the last index in this List.
+     *
+     * Note: this differs from `Array#pop` because it returns a new
+     * List rather than the removed value. Use `last()` to get the last value
+     * in this List.
+     *
+     * ```js
+     * List([ 1, 2, 3, 4 ]).pop()
+     * // List[ 1, 2, 3 ]
+     * ```
+     *
+     * Note: `pop` can be used in `withMutations`.
+     */
+    pop(): List<T>;
+
+    /**
+     * Returns a new List with the provided `values` prepended, shifting other
+     * values ahead to higher indices.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 2, 3, 4]).unshift(1);
+     * // List [ 1, 2, 3, 4 ]
+     * ```
+     *
+     * Note: `unshift` can be used in `withMutations`.
+     */
+    unshift(...values: Array<T>): List<T>;
+
+    /**
+     * Returns a new List with a size ones less than this List, excluding
+     * the first index in this List, shifting all other values to a lower index.
+     *
+     * Note: this differs from `Array#shift` because it returns a new
+     * List rather than the removed value. Use `first()` to get the first
+     * value in this List.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 0, 1, 2, 3, 4 ]).shift();
+     * // List [ 1, 2, 3, 4 ]
+     * ```
+     *
+     * Note: `shift` can be used in `withMutations`.
+     */
+    shift(): List<T>;
+
+    /**
+     * Returns a new List with an updated value at `index` with the return
+     * value of calling `updater` with the existing value, or `notSetValue` if
+     * `index` was not set. If called with a single argument, `updater` is
+     * called with the List itself.
+     *
+     * `index` may be a negative number, which indexes back from the end of the
+     * List. `v.update(-1)` updates the last item in the List.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * const list = List([ 'a', 'b', 'c' ])
+     * const result = list.update(2, val => val.toUpperCase())
+     * // List [ "a", "b", "C" ]
+     * ```
+     *
+     * This can be very useful as a way to "chain" a normal function into a
+     * sequence of methods. RxJS calls this "let" and lodash calls it "thru".
+     *
+     * For example, to sum a List after mapping and filtering:
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * function sum(collection) {
+     *   return collection.reduce((sum, x) => sum + x, 0)
+     * }
+     *
+     * List([ 1, 2, 3 ])
+     *   .map(x => x + 1)
+     *   .filter(x => x % 2 === 0)
+     *   .update(sum)
+     * // 6
+     * ```
+     *
+     * Note: `update(index)` can be used in `withMutations`.
+     *
+     * @see `Map#update`
+     */
+    update(index: number, notSetValue: T, updater: (value: T) => T): this;
+    update(
+      index: number,
+      updater: (value: T | undefined) => T | undefined
+    ): this;
+    update<R>(updater: (value: this) => R): R;
+
+    /**
+     * Returns a new List with size `size`. If `size` is less than this
+     * List's size, the new List will exclude values at the higher indices.
+     * If `size` is greater than this List's size, the new List will have
+     * undefined values for the newly available indices.
+     *
+     * When building a new List and the final size is known up front, `setSize`
+     * used in conjunction with `withMutations` may result in the more
+     * performant construction.
+     */
+    setSize(size: number): List<T>;
+
+    // Deep persistent changes
+
+    /**
+     * Returns a new List having set `value` at this `keyPath`. If any keys in
+     * `keyPath` do not exist, a new immutable Map will be created at that key.
+     *
+     * Index numbers are used as keys to determine the path to follow in
+     * the List.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * const list = List([ 0, 1, 2, List([ 3, 4 ])])
+     * list.setIn([3, 0], 999);
+     * // List [ 0, 1, 2, List [ 999, 4 ] ]
+     * ```
+     *
+     * Plain JavaScript Object or Arrays may be nested within an Immutable.js
+     * Collection, and setIn() can update those values as well, treating them
+     * immutably by creating new copies of those values with the changes applied.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * const list = List([ 0, 1, 2, { plain: 'object' }])
+     * list.setIn([3, 'plain'], 'value');
+     * // List([ 0, 1, 2, { plain: 'value' }])
+     * ```
+     *
+     * Note: `setIn` can be used in `withMutations`.
+     */
+    setIn(keyPath: Iterable<unknown>, value: unknown): this;
+
+    /**
+     * Returns a new List having removed the value at this `keyPath`. If any
+     * keys in `keyPath` do not exist, no change will occur.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * const list = List([ 0, 1, 2, List([ 3, 4 ])])
+     * list.deleteIn([3, 0]);
+     * // List [ 0, 1, 2, List [ 4 ] ]
+     * ```
+     *
+     * Plain JavaScript Object or Arrays may be nested within an Immutable.js
+     * Collection, and removeIn() can update those values as well, treating them
+     * immutably by creating new copies of those values with the changes applied.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * const list = List([ 0, 1, 2, { plain: 'object' }])
+     * list.removeIn([3, 'plain']);
+     * // List([ 0, 1, 2, {}])
+     * ```
+     *
+     * Note: `deleteIn` *cannot* be safely used in `withMutations`.
+     *
+     * @alias removeIn
+     */
+    deleteIn(keyPath: Iterable<unknown>): this;
+    removeIn(keyPath: Iterable<unknown>): this;
+
+    /**
+     * Note: `updateIn` can be used in `withMutations`.
+     *
+     * @see `Map#updateIn`
+     */
+    updateIn(
+      keyPath: Iterable<unknown>,
+      notSetValue: unknown,
+      updater: (value: unknown) => unknown
+    ): this;
+    updateIn(
+      keyPath: Iterable<unknown>,
+      updater: (value: unknown) => unknown
+    ): this;
+
+    /**
+     * Note: `mergeIn` can be used in `withMutations`.
+     *
+     * @see `Map#mergeIn`
+     */
+    mergeIn(keyPath: Iterable<unknown>, ...collections: Array<unknown>): this;
+
+    /**
+     * Note: `mergeDeepIn` can be used in `withMutations`.
+     *
+     * @see `Map#mergeDeepIn`
+     */
+    mergeDeepIn(
+      keyPath: Iterable<unknown>,
+      ...collections: Array<unknown>
+    ): this;
+
+    // Transient changes
+
+    /**
+     * Note: Not all methods can be safely used on a mutable collection or within
+     * `withMutations`! Check the documentation for each method to see if it
+     * allows being used in `withMutations`.
+     *
+     * @see `Map#withMutations`
+     */
+    withMutations(mutator: (mutable: this) => unknown): this;
+
+    /**
+     * An alternative API for withMutations()
+     *
+     * Note: Not all methods can be safely used on a mutable collection or within
+     * `withMutations`! Check the documentation for each method to see if it
+     * allows being used in `withMutations`.
+     *
+     * @see `Map#asMutable`
+     */
+    asMutable(): this;
+
+    /**
+     * @see `Map#wasAltered`
+     */
+    wasAltered(): boolean;
+
+    /**
+     * @see `Map#asImmutable`
+     */
+    asImmutable(): this;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new List with other values or collections concatenated to this one.
+     *
+     * Note: `concat` can be used in `withMutations`.
+     *
+     * @alias merge
+     */
+    concat<C>(...valuesOrCollections: Array<Iterable<C> | C>): List<T | C>;
+    merge<C>(...collections: Array<Iterable<C>>): List<T | C>;
+
+    /**
+     * Returns a new List with values passed through a
+     * `mapper` function.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * List([ 1, 2 ]).map(x => 10 * x)
+     * // List [ 10, 20 ]
+     * ```
+     */
+    map<M>(
+      mapper: (value: T, key: number, iter: this) => M,
+      context?: unknown
+    ): List<M>;
+
+    /**
+     * Flat-maps the List, returning a new List.
+     *
+     * Similar to `list.map(...).flatten(true)`.
+     */
+    flatMap<M>(
+      mapper: (value: T, key: number, iter: this) => Iterable<M>,
+      context?: unknown
+    ): List<M>;
+
+    /**
+     * Returns a new List with only the values for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends T>(
+      predicate: (value: T, index: number, iter: this) => value is F,
+      context?: unknown
+    ): List<F>;
+    filter(
+      predicate: (value: T, index: number, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new List with the values for which the `predicate`
+     * function returns false and another for which is returns true.
+     */
+    partition<F extends T, C>(
+      predicate: (this: C, value: T, index: number, iter: this) => value is F,
+      context?: C
+    ): [List<T>, List<F>];
+    partition<C>(
+      predicate: (this: C, value: T, index: number, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+
+    /**
+     * Returns a List "zipped" with the provided collection.
+     *
+     * Like `zipWith`, but using the default `zipper`: creating an `Array`.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * const a = List([ 1, 2, 3 ]);
+     * const b = List([ 4, 5, 6 ]);
+     * const c = a.zip(b); // List [ [ 1, 4 ], [ 2, 5 ], [ 3, 6 ] ]
+     * ```
+     */
+    zip<U>(other: Collection<unknown, U>): List<[T, U]>;
+    zip<U, V>(
+      other: Collection<unknown, U>,
+      other2: Collection<unknown, V>
+    ): List<[T, U, V]>;
+    zip(...collections: Array<Collection<unknown, unknown>>): List<unknown>;
+
+    /**
+     * Returns a List "zipped" with the provided collections.
+     *
+     * Unlike `zip`, `zipAll` continues zipping until the longest collection is
+     * exhausted. Missing values from shorter collections are filled with `undefined`.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * const a = List([ 1, 2 ]);
+     * const b = List([ 3, 4, 5 ]);
+     * const c = a.zipAll(b); // List [ [ 1, 3 ], [ 2, 4 ], [ undefined, 5 ] ]
+     * ```
+     *
+     * Note: Since zipAll will return a collection as large as the largest
+     * input, some results may contain undefined values. TypeScript cannot
+     * account for these without cases (as of v2.5).
+     */
+    zipAll<U>(other: Collection<unknown, U>): List<[T, U]>;
+    zipAll<U, V>(
+      other: Collection<unknown, U>,
+      other2: Collection<unknown, V>
+    ): List<[T, U, V]>;
+    zipAll(...collections: Array<Collection<unknown, unknown>>): List<unknown>;
+
+    /**
+     * Returns a List "zipped" with the provided collections by using a
+     * custom `zipper` function.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { List } = require('immutable');" }
+     * -->
+     * ```js
+     * const a = List([ 1, 2, 3 ]);
+     * const b = List([ 4, 5, 6 ]);
+     * const c = a.zipWith((a, b) => a + b, b);
+     * // List [ 5, 7, 9 ]
+     * ```
+     */
+    zipWith<U, Z>(
+      zipper: (value: T, otherValue: U) => Z,
+      otherCollection: Collection<unknown, U>
+    ): List<Z>;
+    zipWith<U, V, Z>(
+      zipper: (value: T, otherValue: U, thirdValue: V) => Z,
+      otherCollection: Collection<unknown, U>,
+      thirdCollection: Collection<unknown, V>
+    ): List<Z>;
+    zipWith<Z>(
+      zipper: (...values: Array<unknown>) => Z,
+      ...collections: Array<Collection<unknown, unknown>>
+    ): List<Z>;
+  }
+
+  /**
+   * Immutable Map is an unordered Collection.Keyed of (key, value) pairs with
+   * `O(log32 N)` gets and `O(log32 N)` persistent sets.
+   *
+   * Iteration order of a Map is undefined, however is stable. Multiple
+   * iterations of the same Map will iterate in the same order.
+   *
+   * Map's keys can be of any type, and use `Immutable.is` to determine key
+   * equality. This allows the use of any value (including NaN) as a key.
+   *
+   * Because `Immutable.is` returns equality based on value semantics, and
+   * Immutable collections are treated as values, any Immutable collection may
+   * be used as a key.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { Map, List } = require('immutable');
+   * Map().set(List([ 1 ]), 'listofone').get(List([ 1 ]));
+   * // 'listofone'
+   * ```
+   *
+   * Any JavaScript object may be used as a key, however strict identity is used
+   * to evaluate key equality. Two similar looking objects will represent two
+   * different keys.
+   *
+   * Implemented by a hash-array mapped trie.
+   */
+  namespace Map {
+    /**
+     * True if the provided value is a Map
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * Map.isMap({}) // false
+     * Map.isMap(Map()) // true
+     * ```
+     */
+    function isMap(maybeMap: unknown): maybeMap is Map<unknown, unknown>;
+
+    /**
+     * Creates a new Map from alternating keys and values
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * Map.of(
+     *   'key', 'value',
+     *   'numerical value', 3,
+     *    0, 'numerical key'
+     * )
+     * // Map { 0: "numerical key", "key": "value", "numerical value": 3 }
+     * ```
+     *
+     * @deprecated Use Map([ [ 'k', 'v' ] ]) or Map({ k: 'v' })
+     */
+    function of(...keyValues: Array<unknown>): Map<unknown, unknown>;
+  }
+
+  /**
+   * Creates a new Immutable Map.
+   *
+   * Created with the same key value pairs as the provided Collection.Keyed or
+   * JavaScript Object or expects a Collection of [K, V] tuple entries.
+   *
+   * Note: `Map` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { Map } = require('immutable')
+   * Map({ key: "value" })
+   * Map([ [ "key", "value" ] ])
+   * ```
+   *
+   * Keep in mind, when using JS objects to construct Immutable Maps, that
+   * JavaScript Object properties are always strings, even if written in a
+   * quote-less shorthand, while Immutable Maps accept keys of any type.
+   *
+   * <!-- runkit:activate
+   *      { "preamble": "const { Map } = require('immutable');" }
+   * -->
+   * ```js
+   * let obj = { 1: "one" }
+   * Object.keys(obj) // [ "1" ]
+   * assert.equal(obj["1"], obj[1]) // "one" === "one"
+   *
+   * let map = Map(obj)
+   * assert.notEqual(map.get("1"), map.get(1)) // "one" !== undefined
+   * ```
+   *
+   * Property access for JavaScript Objects first converts the key to a string,
+   * but since Immutable Map keys can be of any type the argument to `get()` is
+   * not altered.
+   */
+  function Map<K, V>(collection?: Iterable<[K, V]>): Map<K, V>;
+  function Map<V>(obj: { [key: string]: V }): Map<string, V>;
+  function Map<K extends string | symbol, V>(obj: { [P in K]?: V }): Map<K, V>;
+
+  interface Map<K, V> extends Collection.Keyed<K, V> {
+    /**
+     * The number of entries in this Map.
+     */
+    readonly size: number;
+
+    // Persistent changes
+
+    /**
+     * Returns a new Map also containing the new key, value pair. If an equivalent
+     * key already exists in this Map, it will be replaced.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const originalMap = Map()
+     * const newerMap = originalMap.set('key', 'value')
+     * const newestMap = newerMap.set('key', 'newer value')
+     *
+     * originalMap
+     * // Map {}
+     * newerMap
+     * // Map { "key": "value" }
+     * newestMap
+     * // Map { "key": "newer value" }
+     * ```
+     *
+     * Note: `set` can be used in `withMutations`.
+     */
+    set(key: K, value: V): this;
+
+    /**
+     * Returns a new Map which excludes this `key`.
+     *
+     * Note: `delete` cannot be safely used in IE8, but is provided to mirror
+     * the ES6 collection API.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const originalMap = Map({
+     *   key: 'value',
+     *   otherKey: 'other value'
+     * })
+     * // Map { "key": "value", "otherKey": "other value" }
+     * originalMap.delete('otherKey')
+     * // Map { "key": "value" }
+     * ```
+     *
+     * Note: `delete` can be used in `withMutations`.
+     *
+     * @alias remove
+     */
+    delete(key: K): this;
+    remove(key: K): this;
+
+    /**
+     * Returns a new Map which excludes the provided `keys`.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const names = Map({ a: "Aaron", b: "Barry", c: "Connor" })
+     * names.deleteAll([ 'a', 'c' ])
+     * // Map { "b": "Barry" }
+     * ```
+     *
+     * Note: `deleteAll` can be used in `withMutations`.
+     *
+     * @alias removeAll
+     */
+    deleteAll(keys: Iterable<K>): this;
+    removeAll(keys: Iterable<K>): this;
+
+    /**
+     * Returns a new Map containing no keys or values.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * Map({ key: 'value' }).clear()
+     * // Map {}
+     * ```
+     *
+     * Note: `clear` can be used in `withMutations`.
+     */
+    clear(): this;
+
+    /**
+     * Returns a new Map having updated the value at this `key` with the return
+     * value of calling `updater` with the existing value.
+     *
+     * Similar to: `map.set(key, updater(map.get(key)))`.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const aMap = Map({ key: 'value' })
+     * const newMap = aMap.update('key', value => value + value)
+     * // Map { "key": "valuevalue" }
+     * ```
+     *
+     * This is most commonly used to call methods on collections within a
+     * structure of data. For example, in order to `.push()` onto a nested `List`,
+     * `update` and `push` can be used together:
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map, List } = require('immutable');" }
+     * -->
+     * ```js
+     * const aMap = Map({ nestedList: List([ 1, 2, 3 ]) })
+     * const newMap = aMap.update('nestedList', list => list.push(4))
+     * // Map { "nestedList": List [ 1, 2, 3, 4 ] }
+     * ```
+     *
+     * When a `notSetValue` is provided, it is provided to the `updater`
+     * function when the value at the key does not exist in the Map.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable');" }
+     * -->
+     * ```js
+     * const aMap = Map({ key: 'value' })
+     * const newMap = aMap.update('noKey', 'no value', value => value + value)
+     * // Map { "key": "value", "noKey": "no valueno value" }
+     * ```
+     *
+     * However, if the `updater` function returns the same value it was called
+     * with, then no change will occur. This is still true if `notSetValue`
+     * is provided.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable');" }
+     * -->
+     * ```js
+     * const aMap = Map({ apples: 10 })
+     * const newMap = aMap.update('oranges', 0, val => val)
+     * // Map { "apples": 10 }
+     * assert.strictEqual(newMap, map);
+     * ```
+     *
+     * For code using ES2015 or later, using `notSetValue` is discourged in
+     * favor of function parameter default values. This helps to avoid any
+     * potential confusion with identify functions as described above.
+     *
+     * The previous example behaves differently when written with default values:
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable');" }
+     * -->
+     * ```js
+     * const aMap = Map({ apples: 10 })
+     * const newMap = aMap.update('oranges', (val = 0) => val)
+     * // Map { "apples": 10, "oranges": 0 }
+     * ```
+     *
+     * If no key is provided, then the `updater` function return value is
+     * returned as well.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable');" }
+     * -->
+     * ```js
+     * const aMap = Map({ key: 'value' })
+     * const result = aMap.update(aMap => aMap.get('key'))
+     * // "value"
+     * ```
+     *
+     * This can be very useful as a way to "chain" a normal function into a
+     * sequence of methods. RxJS calls this "let" and lodash calls it "thru".
+     *
+     * For example, to sum the values in a Map
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable');" }
+     * -->
+     * ```js
+     * function sum(collection) {
+     *   return collection.reduce((sum, x) => sum + x, 0)
+     * }
+     *
+     * Map({ x: 1, y: 2, z: 3 })
+     *   .map(x => x + 1)
+     *   .filter(x => x % 2 === 0)
+     *   .update(sum)
+     * // 6
+     * ```
+     *
+     * Note: `update(key)` can be used in `withMutations`.
+     */
+    update(key: K, notSetValue: V, updater: (value: V) => V): this;
+    update(key: K, updater: (value: V | undefined) => V | undefined): this;
+    update<R>(updater: (value: this) => R): R;
+
+    /**
+     * Returns a new Map resulting from merging the provided Collections
+     * (or JS objects) into this Map. In other words, this takes each entry of
+     * each collection and sets it on this Map.
+     *
+     * Note: Values provided to `merge` are shallowly converted before being
+     * merged. No nested values are altered.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const one = Map({ a: 10, b: 20, c: 30 })
+     * const two = Map({ b: 40, a: 50, d: 60 })
+     * one.merge(two) // Map { "a": 50, "b": 40, "c": 30, "d": 60 }
+     * two.merge(one) // Map { "b": 20, "a": 10, "d": 60, "c": 30 }
+     * ```
+     *
+     * Note: `merge` can be used in `withMutations`.
+     *
+     * @alias concat
+     */
+    merge<KC, VC>(
+      ...collections: Array<Iterable<[KC, VC]>>
+    ): Map<K | KC, V | VC>;
+    merge<C>(
+      ...collections: Array<{ [key: string]: C }>
+    ): Map<K | string, V | C>;
+    concat<KC, VC>(
+      ...collections: Array<Iterable<[KC, VC]>>
+    ): Map<K | KC, V | VC>;
+    concat<C>(
+      ...collections: Array<{ [key: string]: C }>
+    ): Map<K | string, V | C>;
+
+    /**
+     * Like `merge()`, `mergeWith()` returns a new Map resulting from merging
+     * the provided Collections (or JS objects) into this Map, but uses the
+     * `merger` function for dealing with conflicts.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const one = Map({ a: 10, b: 20, c: 30 })
+     * const two = Map({ b: 40, a: 50, d: 60 })
+     * one.mergeWith((oldVal, newVal) => oldVal / newVal, two)
+     * // { "a": 0.2, "b": 0.5, "c": 30, "d": 60 }
+     * two.mergeWith((oldVal, newVal) => oldVal / newVal, one)
+     * // { "b": 2, "a": 5, "d": 60, "c": 30 }
+     * ```
+     *
+     * Note: `mergeWith` can be used in `withMutations`.
+     */
+    mergeWith(
+      merger: (oldVal: V, newVal: V, key: K) => V,
+      ...collections: Array<Iterable<[K, V]> | { [key: string]: V }>
+    ): this;
+
+    /**
+     * Like `merge()`, but when two compatible collections are encountered with
+     * the same key, it merges them as well, recursing deeply through the nested
+     * data. Two collections are considered to be compatible (and thus will be
+     * merged together) if they both fall into one of three categories: keyed
+     * (e.g., `Map`s, `Record`s, and objects), indexed (e.g., `List`s and
+     * arrays), or set-like (e.g., `Set`s). If they fall into separate
+     * categories, `mergeDeep` will replace the existing collection with the
+     * collection being merged in. This behavior can be customized by using
+     * `mergeDeepWith()`.
+     *
+     * Note: Indexed and set-like collections are merged using
+     * `concat()`/`union()` and therefore do not recurse.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const one = Map({ a: Map({ x: 10, y: 10 }), b: Map({ x: 20, y: 50 }) })
+     * const two = Map({ a: Map({ x: 2 }), b: Map({ y: 5 }), c: Map({ z: 3 }) })
+     * one.mergeDeep(two)
+     * // Map {
+     * //   "a": Map { "x": 2, "y": 10 },
+     * //   "b": Map { "x": 20, "y": 5 },
+     * //   "c": Map { "z": 3 }
+     * // }
+     * ```
+     *
+     * Note: `mergeDeep` can be used in `withMutations`.
+     */
+    mergeDeep(
+      ...collections: Array<Iterable<[K, V]> | { [key: string]: V }>
+    ): this;
+
+    /**
+     * Like `mergeDeep()`, but when two non-collections or incompatible
+     * collections are encountered at the same key, it uses the `merger`
+     * function to determine the resulting value. Collections are considered
+     * incompatible if they fall into separate categories between keyed,
+     * indexed, and set-like.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const one = Map({ a: Map({ x: 10, y: 10 }), b: Map({ x: 20, y: 50 }) })
+     * const two = Map({ a: Map({ x: 2 }), b: Map({ y: 5 }), c: Map({ z: 3 }) })
+     * one.mergeDeepWith((oldVal, newVal) => oldVal / newVal, two)
+     * // Map {
+     * //   "a": Map { "x": 5, "y": 10 },
+     * //   "b": Map { "x": 20, "y": 10 },
+     * //   "c": Map { "z": 3 }
+     * // }
+     * ```
+     *
+     * Note: `mergeDeepWith` can be used in `withMutations`.
+     */
+    mergeDeepWith(
+      merger: (oldVal: unknown, newVal: unknown, key: unknown) => unknown,
+      ...collections: Array<Iterable<[K, V]> | { [key: string]: V }>
+    ): this;
+
+    // Deep persistent changes
+
+    /**
+     * Returns a new Map having set `value` at this `keyPath`. If any keys in
+     * `keyPath` do not exist, a new immutable Map will be created at that key.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const originalMap = Map({
+     *   subObject: Map({
+     *     subKey: 'subvalue',
+     *     subSubObject: Map({
+     *       subSubKey: 'subSubValue'
+     *     })
+     *   })
+     * })
+     *
+     * const newMap = originalMap.setIn(['subObject', 'subKey'], 'ha ha!')
+     * // Map {
+     * //   "subObject": Map {
+     * //     "subKey": "ha ha!",
+     * //     "subSubObject": Map { "subSubKey": "subSubValue" }
+     * //   }
+     * // }
+     *
+     * const newerMap = originalMap.setIn(
+     *   ['subObject', 'subSubObject', 'subSubKey'],
+     *   'ha ha ha!'
+     * )
+     * // Map {
+     * //   "subObject": Map {
+     * //     "subKey": "subvalue",
+     * //     "subSubObject": Map { "subSubKey": "ha ha ha!" }
+     * //   }
+     * // }
+     * ```
+     *
+     * Plain JavaScript Object or Arrays may be nested within an Immutable.js
+     * Collection, and setIn() can update those values as well, treating them
+     * immutably by creating new copies of those values with the changes applied.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const originalMap = Map({
+     *   subObject: {
+     *     subKey: 'subvalue',
+     *     subSubObject: {
+     *       subSubKey: 'subSubValue'
+     *     }
+     *   }
+     * })
+     *
+     * originalMap.setIn(['subObject', 'subKey'], 'ha ha!')
+     * // Map {
+     * //   "subObject": {
+     * //     subKey: "ha ha!",
+     * //     subSubObject: { subSubKey: "subSubValue" }
+     * //   }
+     * // }
+     * ```
+     *
+     * If any key in the path exists but cannot be updated (such as a primitive
+     * like number or a custom Object like Date), an error will be thrown.
+     *
+     * Note: `setIn` can be used in `withMutations`.
+     */
+    setIn(keyPath: Iterable<unknown>, value: unknown): this;
+
+    /**
+     * Returns a new Map having removed the value at this `keyPath`. If any keys
+     * in `keyPath` do not exist, no change will occur.
+     *
+     * Note: `deleteIn` can be used in `withMutations`.
+     *
+     * @alias removeIn
+     */
+    deleteIn(keyPath: Iterable<unknown>): this;
+    removeIn(keyPath: Iterable<unknown>): this;
+
+    /**
+     * Returns a new Map having applied the `updater` to the entry found at the
+     * keyPath.
+     *
+     * This is most commonly used to call methods on collections nested within a
+     * structure of data. For example, in order to `.push()` onto a nested `List`,
+     * `updateIn` and `push` can be used together:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map, List } = require('immutable')
+     * const map = Map({ inMap: Map({ inList: List([ 1, 2, 3 ]) }) })
+     * const newMap = map.updateIn(['inMap', 'inList'], list => list.push(4))
+     * // Map { "inMap": Map { "inList": List [ 1, 2, 3, 4 ] } }
+     * ```
+     *
+     * If any keys in `keyPath` do not exist, new Immutable `Map`s will
+     * be created at those keys. If the `keyPath` does not already contain a
+     * value, the `updater` function will be called with `notSetValue`, if
+     * provided, otherwise `undefined`.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable')" }
+     * -->
+     * ```js
+     * const map = Map({ a: Map({ b: Map({ c: 10 }) }) })
+     * const newMap = map.updateIn(['a', 'b', 'c'], val => val * 2)
+     * // Map { "a": Map { "b": Map { "c": 20 } } }
+     * ```
+     *
+     * If the `updater` function returns the same value it was called with, then
+     * no change will occur. This is still true if `notSetValue` is provided.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable')" }
+     * -->
+     * ```js
+     * const map = Map({ a: Map({ b: Map({ c: 10 }) }) })
+     * const newMap = map.updateIn(['a', 'b', 'x'], 100, val => val)
+     * // Map { "a": Map { "b": Map { "c": 10 } } }
+     * assert.strictEqual(newMap, aMap)
+     * ```
+     *
+     * For code using ES2015 or later, using `notSetValue` is discourged in
+     * favor of function parameter default values. This helps to avoid any
+     * potential confusion with identify functions as described above.
+     *
+     * The previous example behaves differently when written with default values:
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable')" }
+     * -->
+     * ```js
+     * const map = Map({ a: Map({ b: Map({ c: 10 }) }) })
+     * const newMap = map.updateIn(['a', 'b', 'x'], (val = 100) => val)
+     * // Map { "a": Map { "b": Map { "c": 10, "x": 100 } } }
+     * ```
+     *
+     * Plain JavaScript Object or Arrays may be nested within an Immutable.js
+     * Collection, and updateIn() can update those values as well, treating them
+     * immutably by creating new copies of those values with the changes applied.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Map } = require('immutable')" }
+     * -->
+     * ```js
+     * const map = Map({ a: { b: { c: 10 } } })
+     * const newMap = map.updateIn(['a', 'b', 'c'], val => val * 2)
+     * // Map { "a": { b: { c: 20 } } }
+     * ```
+     *
+     * If any key in the path exists but cannot be updated (such as a primitive
+     * like number or a custom Object like Date), an error will be thrown.
+     *
+     * Note: `updateIn` can be used in `withMutations`.
+     */
+    updateIn(
+      keyPath: Iterable<unknown>,
+      notSetValue: unknown,
+      updater: (value: unknown) => unknown
+    ): this;
+    updateIn(
+      keyPath: Iterable<unknown>,
+      updater: (value: unknown) => unknown
+    ): this;
+
+    /**
+     * A combination of `updateIn` and `merge`, returning a new Map, but
+     * performing the merge at a point arrived at by following the keyPath.
+     * In other words, these two lines are equivalent:
+     *
+     * ```js
+     * map.updateIn(['a', 'b', 'c'], abc => abc.merge(y))
+     * map.mergeIn(['a', 'b', 'c'], y)
+     * ```
+     *
+     * Note: `mergeIn` can be used in `withMutations`.
+     */
+    mergeIn(keyPath: Iterable<unknown>, ...collections: Array<unknown>): this;
+
+    /**
+     * A combination of `updateIn` and `mergeDeep`, returning a new Map, but
+     * performing the deep merge at a point arrived at by following the keyPath.
+     * In other words, these two lines are equivalent:
+     *
+     * ```js
+     * map.updateIn(['a', 'b', 'c'], abc => abc.mergeDeep(y))
+     * map.mergeDeepIn(['a', 'b', 'c'], y)
+     * ```
+     *
+     * Note: `mergeDeepIn` can be used in `withMutations`.
+     */
+    mergeDeepIn(
+      keyPath: Iterable<unknown>,
+      ...collections: Array<unknown>
+    ): this;
+
+    // Transient changes
+
+    /**
+     * Every time you call one of the above functions, a new immutable Map is
+     * created. If a pure function calls a number of these to produce a final
+     * return value, then a penalty on performance and memory has been paid by
+     * creating all of the intermediate immutable Maps.
+     *
+     * If you need to apply a series of mutations to produce a new immutable
+     * Map, `withMutations()` creates a temporary mutable copy of the Map which
+     * can apply mutations in a highly performant manner. In fact, this is
+     * exactly how complex mutations like `merge` are done.
+     *
+     * As an example, this results in the creation of 2, not 4, new Maps:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const map1 = Map()
+     * const map2 = map1.withMutations(map => {
+     *   map.set('a', 1).set('b', 2).set('c', 3)
+     * })
+     * assert.equal(map1.size, 0)
+     * assert.equal(map2.size, 3)
+     * ```
+     *
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Read the documentation for each method to see if it
+     * is safe to use in `withMutations`.
+     */
+    withMutations(mutator: (mutable: this) => unknown): this;
+
+    /**
+     * Another way to avoid creation of intermediate Immutable maps is to create
+     * a mutable copy of this collection. Mutable copies *always* return `this`,
+     * and thus shouldn't be used for equality. Your function should never return
+     * a mutable copy of a collection, only use it internally to create a new
+     * collection.
+     *
+     * If possible, use `withMutations` to work with temporary mutable copies as
+     * it provides an easier to use API and considers many common optimizations.
+     *
+     * Note: if the collection is already mutable, `asMutable` returns itself.
+     *
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Read the documentation for each method to see if it
+     * is safe to use in `withMutations`.
+     *
+     * @see `Map#asImmutable`
+     */
+    asMutable(): this;
+
+    /**
+     * Returns true if this is a mutable copy (see `asMutable()`) and mutative
+     * alterations have been applied.
+     *
+     * @see `Map#asMutable`
+     */
+    wasAltered(): boolean;
+
+    /**
+     * The yin to `asMutable`'s yang. Because it applies to mutable collections,
+     * this operation is *mutable* and may return itself (though may not
+     * return itself, i.e. if the result is an empty collection). Once
+     * performed, the original mutable copy must no longer be mutated since it
+     * may be the immutable result.
+     *
+     * If possible, use `withMutations` to work with temporary mutable copies as
+     * it provides an easier to use API and considers many common optimizations.
+     *
+     * @see `Map#asMutable`
+     */
+    asImmutable(): this;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new Map with values passed through a
+     * `mapper` function.
+     *
+     *     Map({ a: 1, b: 2 }).map(x => 10 * x)
+     *     // Map { a: 10, b: 20 }
+     */
+    map<M>(
+      mapper: (value: V, key: K, iter: this) => M,
+      context?: unknown
+    ): Map<K, M>;
+
+    /**
+     * @see Collection.Keyed.mapKeys
+     */
+    mapKeys<M>(
+      mapper: (key: K, value: V, iter: this) => M,
+      context?: unknown
+    ): Map<M, V>;
+
+    /**
+     * @see Collection.Keyed.mapEntries
+     */
+    mapEntries<KM, VM>(
+      mapper: (
+        entry: [K, V],
+        index: number,
+        iter: this
+      ) => [KM, VM] | undefined,
+      context?: unknown
+    ): Map<KM, VM>;
+
+    /**
+     * Flat-maps the Map, returning a new Map.
+     *
+     * Similar to `data.map(...).flatten(true)`.
+     */
+    flatMap<KM, VM>(
+      mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+      context?: unknown
+    ): Map<KM, VM>;
+
+    /**
+     * Returns a new Map with only the entries for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends V>(
+      predicate: (value: V, key: K, iter: this) => value is F,
+      context?: unknown
+    ): Map<K, F>;
+    filter(
+      predicate: (value: V, key: K, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Map with the values for which the `predicate`
+     * function returns false and another for which is returns true.
+     */
+    partition<F extends V, C>(
+      predicate: (this: C, value: V, key: K, iter: this) => value is F,
+      context?: C
+    ): [Map<K, V>, Map<K, F>];
+    partition<C>(
+      predicate: (this: C, value: V, key: K, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+
+    /**
+     * @see Collection.Keyed.flip
+     */
+    flip(): Map<V, K>;
+  }
+
+  /**
+   * A type of Map that has the additional guarantee that the iteration order of
+   * entries will be the order in which they were set().
+   *
+   * The iteration behavior of OrderedMap is the same as native ES6 Map and
+   * JavaScript Object.
+   *
+   * Note that `OrderedMap` are more expensive than non-ordered `Map` and may
+   * consume more memory. `OrderedMap#set` is amortized O(log32 N), but not
+   * stable.
+   */
+  namespace OrderedMap {
+    /**
+     * True if the provided value is an OrderedMap.
+     */
+    function isOrderedMap(
+      maybeOrderedMap: unknown
+    ): maybeOrderedMap is OrderedMap<unknown, unknown>;
+  }
+
+  /**
+   * Creates a new Immutable OrderedMap.
+   *
+   * Created with the same key value pairs as the provided Collection.Keyed or
+   * JavaScript Object or expects a Collection of [K, V] tuple entries.
+   *
+   * The iteration order of key-value pairs provided to this constructor will
+   * be preserved in the OrderedMap.
+   *
+   *     let newOrderedMap = OrderedMap({key: "value"})
+   *     let newOrderedMap = OrderedMap([["key", "value"]])
+   *
+   * Note: `OrderedMap` is a factory function and not a class, and does not use
+   * the `new` keyword during construction.
+   */
+  function OrderedMap<K, V>(collection?: Iterable<[K, V]>): OrderedMap<K, V>;
+  function OrderedMap<V>(obj: { [key: string]: V }): OrderedMap<string, V>;
+
+  interface OrderedMap<K, V> extends Map<K, V> {
+    /**
+     * The number of entries in this OrderedMap.
+     */
+    readonly size: number;
+
+    /**
+     * Returns a new OrderedMap also containing the new key, value pair. If an
+     * equivalent key already exists in this OrderedMap, it will be replaced
+     * while maintaining the existing order.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { OrderedMap } = require('immutable')
+     * const originalMap = OrderedMap({a:1, b:1, c:1})
+     * const updatedMap = originalMap.set('b', 2)
+     *
+     * originalMap
+     * // OrderedMap {a: 1, b: 1, c: 1}
+     * updatedMap
+     * // OrderedMap {a: 1, b: 2, c: 1}
+     * ```
+     *
+     * Note: `set` can be used in `withMutations`.
+     */
+    set(key: K, value: V): this;
+
+    /**
+     * Returns a new OrderedMap resulting from merging the provided Collections
+     * (or JS objects) into this OrderedMap. In other words, this takes each
+     * entry of each collection and sets it on this OrderedMap.
+     *
+     * Note: Values provided to `merge` are shallowly converted before being
+     * merged. No nested values are altered.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { OrderedMap } = require('immutable')
+     * const one = OrderedMap({ a: 10, b: 20, c: 30 })
+     * const two = OrderedMap({ b: 40, a: 50, d: 60 })
+     * one.merge(two) // OrderedMap { "a": 50, "b": 40, "c": 30, "d": 60 }
+     * two.merge(one) // OrderedMap { "b": 20, "a": 10, "d": 60, "c": 30 }
+     * ```
+     *
+     * Note: `merge` can be used in `withMutations`.
+     *
+     * @alias concat
+     */
+    merge<KC, VC>(
+      ...collections: Array<Iterable<[KC, VC]>>
+    ): OrderedMap<K | KC, V | VC>;
+    merge<C>(
+      ...collections: Array<{ [key: string]: C }>
+    ): OrderedMap<K | string, V | C>;
+    concat<KC, VC>(
+      ...collections: Array<Iterable<[KC, VC]>>
+    ): OrderedMap<K | KC, V | VC>;
+    concat<C>(
+      ...collections: Array<{ [key: string]: C }>
+    ): OrderedMap<K | string, V | C>;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new OrderedMap with values passed through a
+     * `mapper` function.
+     *
+     *     OrderedMap({ a: 1, b: 2 }).map(x => 10 * x)
+     *     // OrderedMap { "a": 10, "b": 20 }
+     *
+     * Note: `map()` always returns a new instance, even if it produced the same
+     * value at every step.
+     */
+    map<M>(
+      mapper: (value: V, key: K, iter: this) => M,
+      context?: unknown
+    ): OrderedMap<K, M>;
+
+    /**
+     * @see Collection.Keyed.mapKeys
+     */
+    mapKeys<M>(
+      mapper: (key: K, value: V, iter: this) => M,
+      context?: unknown
+    ): OrderedMap<M, V>;
+
+    /**
+     * @see Collection.Keyed.mapEntries
+     */
+    mapEntries<KM, VM>(
+      mapper: (
+        entry: [K, V],
+        index: number,
+        iter: this
+      ) => [KM, VM] | undefined,
+      context?: unknown
+    ): OrderedMap<KM, VM>;
+
+    /**
+     * Flat-maps the OrderedMap, returning a new OrderedMap.
+     *
+     * Similar to `data.map(...).flatten(true)`.
+     */
+    flatMap<KM, VM>(
+      mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+      context?: unknown
+    ): OrderedMap<KM, VM>;
+
+    /**
+     * Returns a new OrderedMap with only the entries for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends V>(
+      predicate: (value: V, key: K, iter: this) => value is F,
+      context?: unknown
+    ): OrderedMap<K, F>;
+    filter(
+      predicate: (value: V, key: K, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new OrderedMap with the values for which the `predicate`
+     * function returns false and another for which is returns true.
+     */
+    partition<F extends V, C>(
+      predicate: (this: C, value: V, key: K, iter: this) => value is F,
+      context?: C
+    ): [OrderedMap<K, V>, OrderedMap<K, F>];
+    partition<C>(
+      predicate: (this: C, value: V, key: K, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+
+    /**
+     * @see Collection.Keyed.flip
+     */
+    flip(): OrderedMap<V, K>;
+  }
+
+  /**
+   * A Collection of unique values with `O(log32 N)` adds and has.
+   *
+   * When iterating a Set, the entries will be (value, value) pairs. Iteration
+   * order of a Set is undefined, however is stable. Multiple iterations of the
+   * same Set will iterate in the same order.
+   *
+   * Set values, like Map keys, may be of any type. Equality is determined using
+   * `Immutable.is`, enabling Sets to uniquely include other Immutable
+   * collections, custom value types, and NaN.
+   */
+  namespace Set {
+    /**
+     * True if the provided value is a Set
+     */
+    function isSet(maybeSet: unknown): maybeSet is Set<unknown>;
+
+    /**
+     * Creates a new Set containing `values`.
+     */
+    function of<T>(...values: Array<T>): Set<T>;
+
+    /**
+     * `Set.fromKeys()` creates a new immutable Set containing the keys from
+     * this Collection or JavaScript Object.
+     */
+    function fromKeys<T>(iter: Collection.Keyed<T, unknown>): Set<T>;
+    // tslint:disable-next-line unified-signatures
+    function fromKeys<T>(iter: Collection<T, unknown>): Set<T>;
+    function fromKeys(obj: { [key: string]: unknown }): Set<string>;
+
+    /**
+     * `Set.intersect()` creates a new immutable Set that is the intersection of
+     * a collection of other sets.
+     *
+     * ```js
+     * const { Set } = require('immutable')
+     * const intersected = Set.intersect([
+     *   Set([ 'a', 'b', 'c' ])
+     *   Set([ 'c', 'a', 't' ])
+     * ])
+     * // Set [ "a", "c" ]
+     * ```
+     */
+    function intersect<T>(sets: Iterable<Iterable<T>>): Set<T>;
+
+    /**
+     * `Set.union()` creates a new immutable Set that is the union of a
+     * collection of other sets.
+     *
+     * ```js
+     * const { Set } = require('immutable')
+     * const unioned = Set.union([
+     *   Set([ 'a', 'b', 'c' ])
+     *   Set([ 'c', 'a', 't' ])
+     * ])
+     * // Set [ "a", "b", "c", "t" ]
+     * ```
+     */
+    function union<T>(sets: Iterable<Iterable<T>>): Set<T>;
+  }
+
+  /**
+   * Create a new immutable Set containing the values of the provided
+   * collection-like.
+   *
+   * Note: `Set` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   */
+  function Set<T>(collection?: Iterable<T> | ArrayLike<T>): Set<T>;
+
+  interface Set<T> extends Collection.Set<T> {
+    /**
+     * The number of items in this Set.
+     */
+    readonly size: number;
+
+    // Persistent changes
+
+    /**
+     * Returns a new Set which also includes this value.
+     *
+     * Note: `add` can be used in `withMutations`.
+     */
+    add(value: T): this;
+
+    /**
+     * Returns a new Set which excludes this value.
+     *
+     * Note: `delete` can be used in `withMutations`.
+     *
+     * Note: `delete` **cannot** be safely used in IE8, use `remove` if
+     * supporting old browsers.
+     *
+     * @alias remove
+     */
+    delete(value: T): this;
+    remove(value: T): this;
+
+    /**
+     * Returns a new Set containing no values.
+     *
+     * Note: `clear` can be used in `withMutations`.
+     */
+    clear(): this;
+
+    /**
+     * Returns a Set including any value from `collections` that does not already
+     * exist in this Set.
+     *
+     * Note: `union` can be used in `withMutations`.
+     * @alias merge
+     * @alias concat
+     */
+    union<C>(...collections: Array<Iterable<C>>): Set<T | C>;
+    merge<C>(...collections: Array<Iterable<C>>): Set<T | C>;
+    concat<C>(...collections: Array<Iterable<C>>): Set<T | C>;
+
+    /**
+     * Returns a Set which has removed any values not also contained
+     * within `collections`.
+     *
+     * Note: `intersect` can be used in `withMutations`.
+     */
+    intersect(...collections: Array<Iterable<T>>): this;
+
+    /**
+     * Returns a Set excluding any values contained within `collections`.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { OrderedSet } = require('immutable')
+     * OrderedSet([ 1, 2, 3 ]).subtract([1, 3])
+     * // OrderedSet [2]
+     * ```
+     *
+     * Note: `subtract` can be used in `withMutations`.
+     */
+    subtract(...collections: Array<Iterable<T>>): this;
+
+    // Transient changes
+
+    /**
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Check the documentation for each method to see if it
+     * mentions being safe to use in `withMutations`.
+     *
+     * @see `Map#withMutations`
+     */
+    withMutations(mutator: (mutable: this) => unknown): this;
+
+    /**
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Check the documentation for each method to see if it
+     * mentions being safe to use in `withMutations`.
+     *
+     * @see `Map#asMutable`
+     */
+    asMutable(): this;
+
+    /**
+     * @see `Map#wasAltered`
+     */
+    wasAltered(): boolean;
+
+    /**
+     * @see `Map#asImmutable`
+     */
+    asImmutable(): this;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new Set with values passed through a
+     * `mapper` function.
+     *
+     *     Set([1,2]).map(x => 10 * x)
+     *     // Set [10,20]
+     */
+    map<M>(
+      mapper: (value: T, key: T, iter: this) => M,
+      context?: unknown
+    ): Set<M>;
+
+    /**
+     * Flat-maps the Set, returning a new Set.
+     *
+     * Similar to `set.map(...).flatten(true)`.
+     */
+    flatMap<M>(
+      mapper: (value: T, key: T, iter: this) => Iterable<M>,
+      context?: unknown
+    ): Set<M>;
+
+    /**
+     * Returns a new Set with only the values for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends T>(
+      predicate: (value: T, key: T, iter: this) => value is F,
+      context?: unknown
+    ): Set<F>;
+    filter(
+      predicate: (value: T, key: T, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Set with the values for which the `predicate` function
+     * returns false and another for which is returns true.
+     */
+    partition<F extends T, C>(
+      predicate: (this: C, value: T, key: T, iter: this) => value is F,
+      context?: C
+    ): [Set<T>, Set<F>];
+    partition<C>(
+      predicate: (this: C, value: T, key: T, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+  }
+
+  /**
+   * A type of Set that has the additional guarantee that the iteration order of
+   * values will be the order in which they were `add`ed.
+   *
+   * The iteration behavior of OrderedSet is the same as native ES6 Set.
+   *
+   * Note that `OrderedSet` are more expensive than non-ordered `Set` and may
+   * consume more memory. `OrderedSet#add` is amortized O(log32 N), but not
+   * stable.
+   */
+  namespace OrderedSet {
+    /**
+     * True if the provided value is an OrderedSet.
+     */
+    function isOrderedSet(
+      maybeOrderedSet: unknown
+    ): maybeOrderedSet is OrderedSet<unknown>;
+
+    /**
+     * Creates a new OrderedSet containing `values`.
+     */
+    function of<T>(...values: Array<T>): OrderedSet<T>;
+
+    /**
+     * `OrderedSet.fromKeys()` creates a new immutable OrderedSet containing
+     * the keys from this Collection or JavaScript Object.
+     */
+    function fromKeys<T>(iter: Collection.Keyed<T, unknown>): OrderedSet<T>;
+    // tslint:disable-next-line unified-signatures
+    function fromKeys<T>(iter: Collection<T, unknown>): OrderedSet<T>;
+    function fromKeys(obj: { [key: string]: unknown }): OrderedSet<string>;
+  }
+
+  /**
+   * Create a new immutable OrderedSet containing the values of the provided
+   * collection-like.
+   *
+   * Note: `OrderedSet` is a factory function and not a class, and does not use
+   * the `new` keyword during construction.
+   */
+  function OrderedSet<T>(
+    collection?: Iterable<T> | ArrayLike<T>
+  ): OrderedSet<T>;
+
+  interface OrderedSet<T> extends Set<T> {
+    /**
+     * The number of items in this OrderedSet.
+     */
+    readonly size: number;
+
+    /**
+     * Returns an OrderedSet including any value from `collections` that does
+     * not already exist in this OrderedSet.
+     *
+     * Note: `union` can be used in `withMutations`.
+     * @alias merge
+     * @alias concat
+     */
+    union<C>(...collections: Array<Iterable<C>>): OrderedSet<T | C>;
+    merge<C>(...collections: Array<Iterable<C>>): OrderedSet<T | C>;
+    concat<C>(...collections: Array<Iterable<C>>): OrderedSet<T | C>;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new Set with values passed through a
+     * `mapper` function.
+     *
+     *     OrderedSet([ 1, 2 ]).map(x => 10 * x)
+     *     // OrderedSet [10, 20]
+     */
+    map<M>(
+      mapper: (value: T, key: T, iter: this) => M,
+      context?: unknown
+    ): OrderedSet<M>;
+
+    /**
+     * Flat-maps the OrderedSet, returning a new OrderedSet.
+     *
+     * Similar to `set.map(...).flatten(true)`.
+     */
+    flatMap<M>(
+      mapper: (value: T, key: T, iter: this) => Iterable<M>,
+      context?: unknown
+    ): OrderedSet<M>;
+
+    /**
+     * Returns a new OrderedSet with only the values for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends T>(
+      predicate: (value: T, key: T, iter: this) => value is F,
+      context?: unknown
+    ): OrderedSet<F>;
+    filter(
+      predicate: (value: T, key: T, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new OrderedSet with the values for which the `predicate`
+     * function returns false and another for which is returns true.
+     */
+    partition<F extends T, C>(
+      predicate: (this: C, value: T, key: T, iter: this) => value is F,
+      context?: C
+    ): [OrderedSet<T>, OrderedSet<F>];
+    partition<C>(
+      predicate: (this: C, value: T, key: T, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+
+    /**
+     * Returns an OrderedSet of the same type "zipped" with the provided
+     * collections.
+     *
+     * Like `zipWith`, but using the default `zipper`: creating an `Array`.
+     *
+     * ```js
+     * const a = OrderedSet([ 1, 2, 3 ])
+     * const b = OrderedSet([ 4, 5, 6 ])
+     * const c = a.zip(b)
+     * // OrderedSet [ [ 1, 4 ], [ 2, 5 ], [ 3, 6 ] ]
+     * ```
+     */
+    zip<U>(other: Collection<unknown, U>): OrderedSet<[T, U]>;
+    zip<U, V>(
+      other1: Collection<unknown, U>,
+      other2: Collection<unknown, V>
+    ): OrderedSet<[T, U, V]>;
+    zip(
+      ...collections: Array<Collection<unknown, unknown>>
+    ): OrderedSet<unknown>;
+
+    /**
+     * Returns a OrderedSet of the same type "zipped" with the provided
+     * collections.
+     *
+     * Unlike `zip`, `zipAll` continues zipping until the longest collection is
+     * exhausted. Missing values from shorter collections are filled with `undefined`.
+     *
+     * ```js
+     * const a = OrderedSet([ 1, 2 ]);
+     * const b = OrderedSet([ 3, 4, 5 ]);
+     * const c = a.zipAll(b); // OrderedSet [ [ 1, 3 ], [ 2, 4 ], [ undefined, 5 ] ]
+     * ```
+     *
+     * Note: Since zipAll will return a collection as large as the largest
+     * input, some results may contain undefined values. TypeScript cannot
+     * account for these without cases (as of v2.5).
+     */
+    zipAll<U>(other: Collection<unknown, U>): OrderedSet<[T, U]>;
+    zipAll<U, V>(
+      other1: Collection<unknown, U>,
+      other2: Collection<unknown, V>
+    ): OrderedSet<[T, U, V]>;
+    zipAll(
+      ...collections: Array<Collection<unknown, unknown>>
+    ): OrderedSet<unknown>;
+
+    /**
+     * Returns an OrderedSet of the same type "zipped" with the provided
+     * collections by using a custom `zipper` function.
+     *
+     * @see Seq.Indexed.zipWith
+     */
+    zipWith<U, Z>(
+      zipper: (value: T, otherValue: U) => Z,
+      otherCollection: Collection<unknown, U>
+    ): OrderedSet<Z>;
+    zipWith<U, V, Z>(
+      zipper: (value: T, otherValue: U, thirdValue: V) => Z,
+      otherCollection: Collection<unknown, U>,
+      thirdCollection: Collection<unknown, V>
+    ): OrderedSet<Z>;
+    zipWith<Z>(
+      zipper: (...values: Array<unknown>) => Z,
+      ...collections: Array<Collection<unknown, unknown>>
+    ): OrderedSet<Z>;
+  }
+
+  /**
+   * Stacks are indexed collections which support very efficient O(1) addition
+   * and removal from the front using `unshift(v)` and `shift()`.
+   *
+   * For familiarity, Stack also provides `push(v)`, `pop()`, and `peek()`, but
+   * be aware that they also operate on the front of the list, unlike List or
+   * a JavaScript Array.
+   *
+   * Note: `reverse()` or any inherent reverse traversal (`reduceRight`,
+   * `lastIndexOf`, etc.) is not efficient with a Stack.
+   *
+   * Stack is implemented with a Single-Linked List.
+   */
+  namespace Stack {
+    /**
+     * True if the provided value is a Stack
+     */
+    function isStack(maybeStack: unknown): maybeStack is Stack<unknown>;
+
+    /**
+     * Creates a new Stack containing `values`.
+     */
+    function of<T>(...values: Array<T>): Stack<T>;
+  }
+
+  /**
+   * Create a new immutable Stack containing the values of the provided
+   * collection-like.
+   *
+   * The iteration order of the provided collection is preserved in the
+   * resulting `Stack`.
+   *
+   * Note: `Stack` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   */
+  function Stack<T>(collection?: Iterable<T> | ArrayLike<T>): Stack<T>;
+
+  interface Stack<T> extends Collection.Indexed<T> {
+    /**
+     * The number of items in this Stack.
+     */
+    readonly size: number;
+
+    // Reading values
+
+    /**
+     * Alias for `Stack.first()`.
+     */
+    peek(): T | undefined;
+
+    // Persistent changes
+
+    /**
+     * Returns a new Stack with 0 size and no values.
+     *
+     * Note: `clear` can be used in `withMutations`.
+     */
+    clear(): Stack<T>;
+
+    /**
+     * Returns a new Stack with the provided `values` prepended, shifting other
+     * values ahead to higher indices.
+     *
+     * This is very efficient for Stack.
+     *
+     * Note: `unshift` can be used in `withMutations`.
+     */
+    unshift(...values: Array<T>): Stack<T>;
+
+    /**
+     * Like `Stack#unshift`, but accepts a collection rather than varargs.
+     *
+     * Note: `unshiftAll` can be used in `withMutations`.
+     */
+    unshiftAll(iter: Iterable<T>): Stack<T>;
+
+    /**
+     * Returns a new Stack with a size ones less than this Stack, excluding
+     * the first item in this Stack, shifting all other values to a lower index.
+     *
+     * Note: this differs from `Array#shift` because it returns a new
+     * Stack rather than the removed value. Use `first()` or `peek()` to get the
+     * first value in this Stack.
+     *
+     * Note: `shift` can be used in `withMutations`.
+     */
+    shift(): Stack<T>;
+
+    /**
+     * Alias for `Stack#unshift` and is not equivalent to `List#push`.
+     */
+    push(...values: Array<T>): Stack<T>;
+
+    /**
+     * Alias for `Stack#unshiftAll`.
+     */
+    pushAll(iter: Iterable<T>): Stack<T>;
+
+    /**
+     * Alias for `Stack#shift` and is not equivalent to `List#pop`.
+     */
+    pop(): Stack<T>;
+
+    // Transient changes
+
+    /**
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Check the documentation for each method to see if it
+     * mentions being safe to use in `withMutations`.
+     *
+     * @see `Map#withMutations`
+     */
+    withMutations(mutator: (mutable: this) => unknown): this;
+
+    /**
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Check the documentation for each method to see if it
+     * mentions being safe to use in `withMutations`.
+     *
+     * @see `Map#asMutable`
+     */
+    asMutable(): this;
+
+    /**
+     * @see `Map#wasAltered`
+     */
+    wasAltered(): boolean;
+
+    /**
+     * @see `Map#asImmutable`
+     */
+    asImmutable(): this;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new Stack with other collections concatenated to this one.
+     */
+    concat<C>(...valuesOrCollections: Array<Iterable<C> | C>): Stack<T | C>;
+
+    /**
+     * Returns a new Stack with values passed through a
+     * `mapper` function.
+     *
+     *     Stack([ 1, 2 ]).map(x => 10 * x)
+     *     // Stack [ 10, 20 ]
+     *
+     * Note: `map()` always returns a new instance, even if it produced the same
+     * value at every step.
+     */
+    map<M>(
+      mapper: (value: T, key: number, iter: this) => M,
+      context?: unknown
+    ): Stack<M>;
+
+    /**
+     * Flat-maps the Stack, returning a new Stack.
+     *
+     * Similar to `stack.map(...).flatten(true)`.
+     */
+    flatMap<M>(
+      mapper: (value: T, key: number, iter: this) => Iterable<M>,
+      context?: unknown
+    ): Stack<M>;
+
+    /**
+     * Returns a new Set with only the values for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends T>(
+      predicate: (value: T, index: number, iter: this) => value is F,
+      context?: unknown
+    ): Set<F>;
+    filter(
+      predicate: (value: T, index: number, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a Stack "zipped" with the provided collections.
+     *
+     * Like `zipWith`, but using the default `zipper`: creating an `Array`.
+     *
+     * ```js
+     * const a = Stack([ 1, 2, 3 ]);
+     * const b = Stack([ 4, 5, 6 ]);
+     * const c = a.zip(b); // Stack [ [ 1, 4 ], [ 2, 5 ], [ 3, 6 ] ]
+     * ```
+     */
+    zip<U>(other: Collection<unknown, U>): Stack<[T, U]>;
+    zip<U, V>(
+      other: Collection<unknown, U>,
+      other2: Collection<unknown, V>
+    ): Stack<[T, U, V]>;
+    zip(...collections: Array<Collection<unknown, unknown>>): Stack<unknown>;
+
+    /**
+     * Returns a Stack "zipped" with the provided collections.
+     *
+     * Unlike `zip`, `zipAll` continues zipping until the longest collection is
+     * exhausted. Missing values from shorter collections are filled with `undefined`.
+     *
+     * ```js
+     * const a = Stack([ 1, 2 ]);
+     * const b = Stack([ 3, 4, 5 ]);
+     * const c = a.zipAll(b); // Stack [ [ 1, 3 ], [ 2, 4 ], [ undefined, 5 ] ]
+     * ```
+     *
+     * Note: Since zipAll will return a collection as large as the largest
+     * input, some results may contain undefined values. TypeScript cannot
+     * account for these without cases (as of v2.5).
+     */
+    zipAll<U>(other: Collection<unknown, U>): Stack<[T, U]>;
+    zipAll<U, V>(
+      other: Collection<unknown, U>,
+      other2: Collection<unknown, V>
+    ): Stack<[T, U, V]>;
+    zipAll(...collections: Array<Collection<unknown, unknown>>): Stack<unknown>;
+
+    /**
+     * Returns a Stack "zipped" with the provided collections by using a
+     * custom `zipper` function.
+     *
+     * ```js
+     * const a = Stack([ 1, 2, 3 ]);
+     * const b = Stack([ 4, 5, 6 ]);
+     * const c = a.zipWith((a, b) => a + b, b);
+     * // Stack [ 5, 7, 9 ]
+     * ```
+     */
+    zipWith<U, Z>(
+      zipper: (value: T, otherValue: U) => Z,
+      otherCollection: Collection<unknown, U>
+    ): Stack<Z>;
+    zipWith<U, V, Z>(
+      zipper: (value: T, otherValue: U, thirdValue: V) => Z,
+      otherCollection: Collection<unknown, U>,
+      thirdCollection: Collection<unknown, V>
+    ): Stack<Z>;
+    zipWith<Z>(
+      zipper: (...values: Array<unknown>) => Z,
+      ...collections: Array<Collection<unknown, unknown>>
+    ): Stack<Z>;
+  }
+
+  /**
+   * Returns a Seq.Indexed of numbers from `start` (inclusive) to `end`
+   * (exclusive), by `step`, where `start` defaults to 0, `step` to 1, and `end` to
+   * infinity. When `start` is equal to `end`, returns empty range.
+   *
+   * Note: `Range` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   *
+   * ```js
+   * const { Range } = require('immutable')
+   * Range() // [ 0, 1, 2, 3, ... ]
+   * Range(10) // [ 10, 11, 12, 13, ... ]
+   * Range(10, 15) // [ 10, 11, 12, 13, 14 ]
+   * Range(10, 30, 5) // [ 10, 15, 20, 25 ]
+   * Range(30, 10, 5) // [ 30, 25, 20, 15 ]
+   * Range(30, 30, 5) // []
+   * ```
+   */
+  function Range(
+    start?: number,
+    end?: number,
+    step?: number
+  ): Seq.Indexed<number>;
+
+  /**
+   * Returns a Seq.Indexed of `value` repeated `times` times. When `times` is
+   * not defined, returns an infinite `Seq` of `value`.
+   *
+   * Note: `Repeat` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   *
+   * ```js
+   * const { Repeat } = require('immutable')
+   * Repeat('foo') // [ 'foo', 'foo', 'foo', ... ]
+   * Repeat('bar', 4) // [ 'bar', 'bar', 'bar', 'bar' ]
+   * ```
+   */
+  function Repeat<T>(value: T, times?: number): Seq.Indexed<T>;
+
+  /**
+   * A record is similar to a JS object, but enforces a specific set of allowed
+   * string keys, and has default values.
+   *
+   * The `Record()` function produces new Record Factories, which when called
+   * create Record instances.
+   *
+   * ```js
+   * const { Record } = require('immutable')
+   * const ABRecord = Record({ a: 1, b: 2 })
+   * const myRecord = ABRecord({ b: 3 })
+   * ```
+   *
+   * Records always have a value for the keys they define. `remove`ing a key
+   * from a record simply resets it to the default value for that key.
+   *
+   * ```js
+   * myRecord.get('a') // 1
+   * myRecord.get('b') // 3
+   * const myRecordWithoutB = myRecord.remove('b')
+   * myRecordWithoutB.get('b') // 2
+   * ```
+   *
+   * Values provided to the constructor not found in the Record type will
+   * be ignored. For example, in this case, ABRecord is provided a key "x" even
+   * though only "a" and "b" have been defined. The value for "x" will be
+   * ignored for this record.
+   *
+   * ```js
+   * const myRecord = ABRecord({ b: 3, x: 10 })
+   * myRecord.get('x') // undefined
+   * ```
+   *
+   * Because Records have a known set of string keys, property get access works
+   * as expected, however property sets will throw an Error.
+   *
+   * Note: IE8 does not support property access. Only use `get()` when
+   * supporting IE8.
+   *
+   * ```js
+   * myRecord.b // 3
+   * myRecord.b = 5 // throws Error
+   * ```
+   *
+   * Record Types can be extended as well, allowing for custom methods on your
+   * Record. This is not a common pattern in functional environments, but is in
+   * many JS programs.
+   *
+   * However Record Types are more restricted than typical JavaScript classes.
+   * They do not use a class constructor, which also means they cannot use
+   * class properties (since those are technically part of a constructor).
+   *
+   * While Record Types can be syntactically created with the JavaScript `class`
+   * form, the resulting Record function is actually a factory function, not a
+   * class constructor. Even though Record Types are not classes, JavaScript
+   * currently requires the use of `new` when creating new Record instances if
+   * they are defined as a `class`.
+   *
+   * ```
+   * class ABRecord extends Record({ a: 1, b: 2 }) {
+   *   getAB() {
+   *     return this.a + this.b;
+   *   }
+   * }
+   *
+   * var myRecord = new ABRecord({b: 3})
+   * myRecord.getAB() // 4
+   * ```
+   *
+   *
+   * **Flow Typing Records:**
+   *
+   * Immutable.js exports two Flow types designed to make it easier to use
+   * Records with flow typed code, `RecordOf<TProps>` and `RecordFactory<TProps>`.
+   *
+   * When defining a new kind of Record factory function, use a flow type that
+   * describes the values the record contains along with `RecordFactory<TProps>`.
+   * To type instances of the Record (which the factory function returns),
+   * use `RecordOf<TProps>`.
+   *
+   * Typically, new Record definitions will export both the Record factory
+   * function as well as the Record instance type for use in other code.
+   *
+   * ```js
+   * import type { RecordFactory, RecordOf } from 'immutable';
+   *
+   * // Use RecordFactory<TProps> for defining new Record factory functions.
+   * type Point3DProps = { x: number, y: number, z: number };
+   * const defaultValues: Point3DProps = { x: 0, y: 0, z: 0 };
+   * const makePoint3D: RecordFactory<Point3DProps> = Record(defaultValues);
+   * export makePoint3D;
+   *
+   * // Use RecordOf<T> for defining new instances of that Record.
+   * export type Point3D = RecordOf<Point3DProps>;
+   * const some3DPoint: Point3D = makePoint3D({ x: 10, y: 20, z: 30 });
+   * ```
+   *
+   * **Flow Typing Record Subclasses:**
+   *
+   * Records can be subclassed as a means to add additional methods to Record
+   * instances. This is generally discouraged in favor of a more functional API,
+   * since Subclasses have some minor overhead. However the ability to create
+   * a rich API on Record types can be quite valuable.
+   *
+   * When using Flow to type Subclasses, do not use `RecordFactory<TProps>`,
+   * instead apply the props type when subclassing:
+   *
+   * ```js
+   * type PersonProps = {name: string, age: number};
+   * const defaultValues: PersonProps = {name: 'Aristotle', age: 2400};
+   * const PersonRecord = Record(defaultValues);
+   * class Person extends PersonRecord<PersonProps> {
+   *   getName(): string {
+   *     return this.get('name')
+   *   }
+   *
+   *   setName(name: string): this {
+   *     return this.set('name', name);
+   *   }
+   * }
+   * ```
+   *
+   * **Choosing Records vs plain JavaScript objects**
+   *
+   * Records offer a persistently immutable alternative to plain JavaScript
+   * objects, however they're not required to be used within Immutable.js
+   * collections. In fact, the deep-access and deep-updating functions
+   * like `getIn()` and `setIn()` work with plain JavaScript Objects as well.
+   *
+   * Deciding to use Records or Objects in your application should be informed
+   * by the tradeoffs and relative benefits of each:
+   *
+   * - *Runtime immutability*: plain JS objects may be carefully treated as
+   *   immutable, however Record instances will *throw* if attempted to be
+   *   mutated directly. Records provide this additional guarantee, however at
+   *   some marginal runtime cost. While JS objects are mutable by nature, the
+   *   use of type-checking tools like [Flow](https://medium.com/@gcanti/immutability-with-flow-faa050a1aef4)
+   *   can help gain confidence in code written to favor immutability.
+   *
+   * - *Value equality*: Records use value equality when compared with `is()`
+   *   or `record.equals()`. That is, two Records with the same keys and values
+   *   are equal. Plain objects use *reference equality*. Two objects with the
+   *   same keys and values are not equal since they are different objects.
+   *   This is important to consider when using objects as keys in a `Map` or
+   *   values in a `Set`, which use equality when retrieving values.
+   *
+   * - *API methods*: Records have a full featured API, with methods like
+   *   `.getIn()`, and `.equals()`. These can make working with these values
+   *   easier, but comes at the cost of not allowing keys with those names.
+   *
+   * - *Default values*: Records provide default values for every key, which
+   *   can be useful when constructing Records with often unchanging values.
+   *   However default values can make using Flow and TypeScript more laborious.
+   *
+   * - *Serialization*: Records use a custom internal representation to
+   *   efficiently store and update their values. Converting to and from this
+   *   form isn't free. If converting Records to plain objects is common,
+   *   consider sticking with plain objects to begin with.
+   */
+  namespace Record {
+    /**
+     * True if `maybeRecord` is an instance of a Record.
+     */
+    function isRecord(maybeRecord: unknown): maybeRecord is Record<{}>;
+
+    /**
+     * Records allow passing a second parameter to supply a descriptive name
+     * that appears when converting a Record to a string or in any error
+     * messages. A descriptive name for any record can be accessed by using this
+     * method. If one was not provided, the string "Record" is returned.
+     *
+     * ```js
+     * const { Record } = require('immutable')
+     * const Person = Record({
+     *   name: null
+     * }, 'Person')
+     *
+     * var me = Person({ name: 'My Name' })
+     * me.toString() // "Person { "name": "My Name" }"
+     * Record.getDescriptiveName(me) // "Person"
+     * ```
+     */
+    function getDescriptiveName(record: Record<any>): string;
+
+    /**
+     * A Record.Factory is created by the `Record()` function. Record instances
+     * are created by passing it some of the accepted values for that Record
+     * type:
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Record } = require('immutable')" }
+     * -->
+     * ```js
+     * // makePerson is a Record Factory function
+     * const makePerson = Record({ name: null, favoriteColor: 'unknown' });
+     *
+     * // alan is a Record instance
+     * const alan = makePerson({ name: 'Alan' });
+     * ```
+     *
+     * Note that Record Factories return `Record<TProps> & Readonly<TProps>`,
+     * this allows use of both the Record instance API, and direct property
+     * access on the resulting instances:
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Record } = require('immutable');const makePerson = Record({ name: null, favoriteColor: 'unknown' });const alan = makePerson({ name: 'Alan' });" }
+     * -->
+     * ```js
+     * // Use the Record API
+     * console.log('Record API: ' + alan.get('name'))
+     *
+     * // Or direct property access (Readonly)
+     * console.log('property access: ' + alan.name)
+     * ```
+     *
+     * **Flow Typing Records:**
+     *
+     * Use the `RecordFactory<TProps>` Flow type to get high quality type checking of
+     * Records:
+     *
+     * ```js
+     * import type { RecordFactory, RecordOf } from 'immutable';
+     *
+     * // Use RecordFactory<TProps> for defining new Record factory functions.
+     * type PersonProps = { name: ?string, favoriteColor: string };
+     * const makePerson: RecordFactory<PersonProps> = Record({ name: null, favoriteColor: 'unknown' });
+     *
+     * // Use RecordOf<T> for defining new instances of that Record.
+     * type Person = RecordOf<PersonProps>;
+     * const alan: Person = makePerson({ name: 'Alan' });
+     * ```
+     */
+    namespace Factory {}
+
+    interface Factory<TProps extends object> {
+      (values?: Partial<TProps> | Iterable<[string, unknown]>): Record<TProps> &
+        Readonly<TProps>;
+      new (
+        values?: Partial<TProps> | Iterable<[string, unknown]>
+      ): Record<TProps> & Readonly<TProps>;
+
+      /**
+       * The name provided to `Record(values, name)` can be accessed with
+       * `displayName`.
+       */
+      displayName: string;
+    }
+
+    function Factory<TProps extends object>(
+      values?: Partial<TProps> | Iterable<[string, unknown]>
+    ): Record<TProps> & Readonly<TProps>;
+  }
+
+  /**
+   * Unlike other types in Immutable.js, the `Record()` function creates a new
+   * Record Factory, which is a function that creates Record instances.
+   *
+   * See above for examples of using `Record()`.
+   *
+   * Note: `Record` is a factory function and not a class, and does not use the
+   * `new` keyword during construction.
+   */
+  function Record<TProps extends object>(
+    defaultValues: TProps,
+    name?: string
+  ): Record.Factory<TProps>;
+
+  interface Record<TProps extends object> {
+    // Reading values
+
+    has(key: string): key is keyof TProps & string;
+
+    /**
+     * Returns the value associated with the provided key, which may be the
+     * default value defined when creating the Record factory function.
+     *
+     * If the requested key is not defined by this Record type, then
+     * notSetValue will be returned if provided. Note that this scenario would
+     * produce an error when using Flow or TypeScript.
+     */
+    get<K extends keyof TProps>(key: K, notSetValue?: unknown): TProps[K];
+    get<T>(key: string, notSetValue: T): T;
+
+    // Reading deep values
+
+    hasIn(keyPath: Iterable<unknown>): boolean;
+    getIn(keyPath: Iterable<unknown>): unknown;
+
+    // Value equality
+
+    equals(other: unknown): boolean;
+    hashCode(): number;
+
+    // Persistent changes
+
+    set<K extends keyof TProps>(key: K, value: TProps[K]): this;
+    update<K extends keyof TProps>(
+      key: K,
+      updater: (value: TProps[K]) => TProps[K]
+    ): this;
+    merge(
+      ...collections: Array<Partial<TProps> | Iterable<[string, unknown]>>
+    ): this;
+    mergeDeep(
+      ...collections: Array<Partial<TProps> | Iterable<[string, unknown]>>
+    ): this;
+
+    mergeWith(
+      merger: (oldVal: unknown, newVal: unknown, key: keyof TProps) => unknown,
+      ...collections: Array<Partial<TProps> | Iterable<[string, unknown]>>
+    ): this;
+    mergeDeepWith(
+      merger: (oldVal: unknown, newVal: unknown, key: unknown) => unknown,
+      ...collections: Array<Partial<TProps> | Iterable<[string, unknown]>>
+    ): this;
+
+    /**
+     * Returns a new instance of this Record type with the value for the
+     * specific key set to its default value.
+     *
+     * @alias remove
+     */
+    delete<K extends keyof TProps>(key: K): this;
+    remove<K extends keyof TProps>(key: K): this;
+
+    /**
+     * Returns a new instance of this Record type with all values set
+     * to their default values.
+     */
+    clear(): this;
+
+    // Deep persistent changes
+
+    setIn(keyPath: Iterable<unknown>, value: unknown): this;
+    updateIn(
+      keyPath: Iterable<unknown>,
+      updater: (value: unknown) => unknown
+    ): this;
+    mergeIn(keyPath: Iterable<unknown>, ...collections: Array<unknown>): this;
+    mergeDeepIn(
+      keyPath: Iterable<unknown>,
+      ...collections: Array<unknown>
+    ): this;
+
+    /**
+     * @alias removeIn
+     */
+    deleteIn(keyPath: Iterable<unknown>): this;
+    removeIn(keyPath: Iterable<unknown>): this;
+
+    // Conversion to JavaScript types
+
+    /**
+     * Deeply converts this Record to equivalent native JavaScript Object.
+     *
+     * Note: This method may not be overridden. Objects with custom
+     * serialization to plain JS may override toJSON() instead.
+     */
+    toJS(): DeepCopy<TProps>;
+
+    /**
+     * Shallowly converts this Record to equivalent native JavaScript Object.
+     */
+    toJSON(): TProps;
+
+    /**
+     * Shallowly converts this Record to equivalent JavaScript Object.
+     */
+    toObject(): TProps;
+
+    // Transient changes
+
+    /**
+     * Note: Not all methods can be used on a mutable collection or within
+     * `withMutations`! Only `set` may be used mutatively.
+     *
+     * @see `Map#withMutations`
+     */
+    withMutations(mutator: (mutable: this) => unknown): this;
+
+    /**
+     * @see `Map#asMutable`
+     */
+    asMutable(): this;
+
+    /**
+     * @see `Map#wasAltered`
+     */
+    wasAltered(): boolean;
+
+    /**
+     * @see `Map#asImmutable`
+     */
+    asImmutable(): this;
+
+    // Sequence algorithms
+
+    toSeq(): Seq.Keyed<keyof TProps, TProps[keyof TProps]>;
+
+    [Symbol.iterator](): IterableIterator<[keyof TProps, TProps[keyof TProps]]>;
+  }
+
+  /**
+   * RecordOf<T> is used in TypeScript to define interfaces expecting an
+   * instance of record with type T.
+   *
+   * This is equivalent to an instance of a record created by a Record Factory.
+   */
+  type RecordOf<TProps extends object> = Record<TProps> & Readonly<TProps>;
+
+  /**
+   * `Seq` describes a lazy operation, allowing them to efficiently chain
+   * use of all the higher-order collection methods (such as `map` and `filter`)
+   * by not creating intermediate collections.
+   *
+   * **Seq is immutable** — Once a Seq is created, it cannot be
+   * changed, appended to, rearranged or otherwise modified. Instead, any
+   * mutative method called on a `Seq` will return a new `Seq`.
+   *
+   * **Seq is lazy** — `Seq` does as little work as necessary to respond to any
+   * method call. Values are often created during iteration, including implicit
+   * iteration when reducing or converting to a concrete data structure such as
+   * a `List` or JavaScript `Array`.
+   *
+   * For example, the following performs no work, because the resulting
+   * `Seq`'s values are never iterated:
+   *
+   * ```js
+   * const { Seq } = require('immutable')
+   * const oddSquares = Seq([ 1, 2, 3, 4, 5, 6, 7, 8 ])
+   *   .filter(x => x % 2 !== 0)
+   *   .map(x => x * x)
+   * ```
+   *
+   * Once the `Seq` is used, it performs only the work necessary. In this
+   * example, no intermediate arrays are ever created, filter is called three
+   * times, and map is only called once:
+   *
+   * ```js
+   * oddSquares.get(1); // 9
+   * ```
+   *
+   * Any collection can be converted to a lazy Seq with `Seq()`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { Map } = require('immutable')
+   * const map = Map({ a: 1, b: 2, c: 3 })
+   * const lazySeq = Seq(map)
+   * ```
+   *
+   * `Seq` allows for the efficient chaining of operations, allowing for the
+   * expression of logic that can otherwise be very tedious:
+   *
+   * ```js
+   * lazySeq
+   *   .flip()
+   *   .map(key => key.toUpperCase())
+   *   .flip()
+   * // Seq { A: 1, B: 1, C: 1 }
+   * ```
+   *
+   * As well as expressing logic that would otherwise seem memory or time
+   * limited, for example `Range` is a special kind of Lazy sequence.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { Range } = require('immutable')
+   * Range(1, Infinity)
+   *   .skip(1000)
+   *   .map(n => -n)
+   *   .filter(n => n % 2 === 0)
+   *   .take(2)
+   *   .reduce((r, n) => r * n, 1)
+   * // 1006008
+   * ```
+   *
+   * Seq is often used to provide a rich collection API to JavaScript Object.
+   *
+   * ```js
+   * Seq({ x: 0, y: 1, z: 2 }).map(v => v * 2).toObject();
+   * // { x: 0, y: 2, z: 4 }
+   * ```
+   */
+
+  namespace Seq {
+    /**
+     * True if `maybeSeq` is a Seq, it is not backed by a concrete
+     * structure such as Map, List, or Set.
+     */
+    function isSeq(
+      maybeSeq: unknown
+    ): maybeSeq is
+      | Seq.Indexed<unknown>
+      | Seq.Keyed<unknown, unknown>
+      | Seq.Set<unknown>;
+
+    /**
+     * `Seq` which represents key-value pairs.
+     */
+    namespace Keyed {}
+
+    /**
+     * Always returns a Seq.Keyed, if input is not keyed, expects an
+     * collection of [K, V] tuples.
+     *
+     * Note: `Seq.Keyed` is a conversion function and not a class, and does not
+     * use the `new` keyword during construction.
+     */
+    function Keyed<K, V>(collection?: Iterable<[K, V]>): Seq.Keyed<K, V>;
+    function Keyed<V>(obj: { [key: string]: V }): Seq.Keyed<string, V>;
+
+    interface Keyed<K, V> extends Seq<K, V>, Collection.Keyed<K, V> {
+      /**
+       * Deeply converts this Keyed Seq to equivalent native JavaScript Object.
+       *
+       * Converts keys to Strings.
+       */
+      toJS(): { [key in string | number | symbol]: DeepCopy<V> };
+
+      /**
+       * Shallowly converts this Keyed Seq to equivalent native JavaScript Object.
+       *
+       * Converts keys to Strings.
+       */
+      toJSON(): { [key in string | number | symbol]: V };
+
+      /**
+       * Shallowly converts this collection to an Array.
+       */
+      toArray(): Array<[K, V]>;
+
+      /**
+       * Returns itself
+       */
+      toSeq(): this;
+
+      /**
+       * Returns a new Seq with other collections concatenated to this one.
+       *
+       * All entries will be present in the resulting Seq, even if they
+       * have the same key.
+       */
+      concat<KC, VC>(
+        ...collections: Array<Iterable<[KC, VC]>>
+      ): Seq.Keyed<K | KC, V | VC>;
+      concat<C>(
+        ...collections: Array<{ [key: string]: C }>
+      ): Seq.Keyed<K | string, V | C>;
+
+      /**
+       * Returns a new Seq.Keyed with values passed through a
+       * `mapper` function.
+       *
+       * ```js
+       * const { Seq } = require('immutable')
+       * Seq.Keyed({ a: 1, b: 2 }).map(x => 10 * x)
+       * // Seq { "a": 10, "b": 20 }
+       * ```
+       *
+       * Note: `map()` always returns a new instance, even if it produced the
+       * same value at every step.
+       */
+      map<M>(
+        mapper: (value: V, key: K, iter: this) => M,
+        context?: unknown
+      ): Seq.Keyed<K, M>;
+
+      /**
+       * @see Collection.Keyed.mapKeys
+       */
+      mapKeys<M>(
+        mapper: (key: K, value: V, iter: this) => M,
+        context?: unknown
+      ): Seq.Keyed<M, V>;
+
+      /**
+       * @see Collection.Keyed.mapEntries
+       */
+      mapEntries<KM, VM>(
+        mapper: (
+          entry: [K, V],
+          index: number,
+          iter: this
+        ) => [KM, VM] | undefined,
+        context?: unknown
+      ): Seq.Keyed<KM, VM>;
+
+      /**
+       * Flat-maps the Seq, returning a Seq of the same type.
+       *
+       * Similar to `seq.map(...).flatten(true)`.
+       */
+      flatMap<KM, VM>(
+        mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+        context?: unknown
+      ): Seq.Keyed<KM, VM>;
+
+      /**
+       * Returns a new Seq with only the entries for which the `predicate`
+       * function returns true.
+       *
+       * Note: `filter()` always returns a new instance, even if it results in
+       * not filtering out any values.
+       */
+      filter<F extends V>(
+        predicate: (value: V, key: K, iter: this) => value is F,
+        context?: unknown
+      ): Seq.Keyed<K, F>;
+      filter(
+        predicate: (value: V, key: K, iter: this) => unknown,
+        context?: unknown
+      ): this;
+
+      /**
+       * Returns a new keyed Seq with the values for which the `predicate`
+       * function returns false and another for which is returns true.
+       */
+      partition<F extends V, C>(
+        predicate: (this: C, value: V, key: K, iter: this) => value is F,
+        context?: C
+      ): [Seq.Keyed<K, V>, Seq.Keyed<K, F>];
+      partition<C>(
+        predicate: (this: C, value: V, key: K, iter: this) => unknown,
+        context?: C
+      ): [this, this];
+
+      /**
+       * @see Collection.Keyed.flip
+       */
+      flip(): Seq.Keyed<V, K>;
+
+      [Symbol.iterator](): IterableIterator<[K, V]>;
+    }
+
+    /**
+     * `Seq` which represents an ordered indexed list of values.
+     */
+    namespace Indexed {
+      /**
+       * Provides an Seq.Indexed of the values provided.
+       */
+      function of<T>(...values: Array<T>): Seq.Indexed<T>;
+    }
+
+    /**
+     * Always returns Seq.Indexed, discarding associated keys and
+     * supplying incrementing indices.
+     *
+     * Note: `Seq.Indexed` is a conversion function and not a class, and does
+     * not use the `new` keyword during construction.
+     */
+    function Indexed<T>(
+      collection?: Iterable<T> | ArrayLike<T>
+    ): Seq.Indexed<T>;
+
+    interface Indexed<T> extends Seq<number, T>, Collection.Indexed<T> {
+      /**
+       * Deeply converts this Indexed Seq to equivalent native JavaScript Array.
+       */
+      toJS(): Array<DeepCopy<T>>;
+
+      /**
+       * Shallowly converts this Indexed Seq to equivalent native JavaScript Array.
+       */
+      toJSON(): Array<T>;
+
+      /**
+       * Shallowly converts this collection to an Array.
+       */
+      toArray(): Array<T>;
+
+      /**
+       * Returns itself
+       */
+      toSeq(): this;
+
+      /**
+       * Returns a new Seq with other collections concatenated to this one.
+       */
+      concat<C>(
+        ...valuesOrCollections: Array<Iterable<C> | C>
+      ): Seq.Indexed<T | C>;
+
+      /**
+       * Returns a new Seq.Indexed with values passed through a
+       * `mapper` function.
+       *
+       * ```js
+       * const { Seq } = require('immutable')
+       * Seq.Indexed([ 1, 2 ]).map(x => 10 * x)
+       * // Seq [ 10, 20 ]
+       * ```
+       *
+       * Note: `map()` always returns a new instance, even if it produced the
+       * same value at every step.
+       */
+      map<M>(
+        mapper: (value: T, key: number, iter: this) => M,
+        context?: unknown
+      ): Seq.Indexed<M>;
+
+      /**
+       * Flat-maps the Seq, returning a a Seq of the same type.
+       *
+       * Similar to `seq.map(...).flatten(true)`.
+       */
+      flatMap<M>(
+        mapper: (value: T, key: number, iter: this) => Iterable<M>,
+        context?: unknown
+      ): Seq.Indexed<M>;
+
+      /**
+       * Returns a new Seq with only the values for which the `predicate`
+       * function returns true.
+       *
+       * Note: `filter()` always returns a new instance, even if it results in
+       * not filtering out any values.
+       */
+      filter<F extends T>(
+        predicate: (value: T, index: number, iter: this) => value is F,
+        context?: unknown
+      ): Seq.Indexed<F>;
+      filter(
+        predicate: (value: T, index: number, iter: this) => unknown,
+        context?: unknown
+      ): this;
+
+      /**
+       * Returns a new indexed Seq with the values for which the `predicate`
+       * function returns false and another for which is returns true.
+       */
+      partition<F extends T, C>(
+        predicate: (this: C, value: T, index: number, iter: this) => value is F,
+        context?: C
+      ): [Seq.Indexed<T>, Seq.Indexed<F>];
+      partition<C>(
+        predicate: (this: C, value: T, index: number, iter: this) => unknown,
+        context?: C
+      ): [this, this];
+
+      /**
+       * Returns a Seq "zipped" with the provided collections.
+       *
+       * Like `zipWith`, but using the default `zipper`: creating an `Array`.
+       *
+       * ```js
+       * const a = Seq([ 1, 2, 3 ]);
+       * const b = Seq([ 4, 5, 6 ]);
+       * const c = a.zip(b); // Seq [ [ 1, 4 ], [ 2, 5 ], [ 3, 6 ] ]
+       * ```
+       */
+      zip<U>(other: Collection<unknown, U>): Seq.Indexed<[T, U]>;
+      zip<U, V>(
+        other: Collection<unknown, U>,
+        other2: Collection<unknown, V>
+      ): Seq.Indexed<[T, U, V]>;
+      zip(
+        ...collections: Array<Collection<unknown, unknown>>
+      ): Seq.Indexed<unknown>;
+
+      /**
+       * Returns a Seq "zipped" with the provided collections.
+       *
+       * Unlike `zip`, `zipAll` continues zipping until the longest collection is
+       * exhausted. Missing values from shorter collections are filled with `undefined`.
+       *
+       * ```js
+       * const a = Seq([ 1, 2 ]);
+       * const b = Seq([ 3, 4, 5 ]);
+       * const c = a.zipAll(b); // Seq [ [ 1, 3 ], [ 2, 4 ], [ undefined, 5 ] ]
+       * ```
+       */
+      zipAll<U>(other: Collection<unknown, U>): Seq.Indexed<[T, U]>;
+      zipAll<U, V>(
+        other: Collection<unknown, U>,
+        other2: Collection<unknown, V>
+      ): Seq.Indexed<[T, U, V]>;
+      zipAll(
+        ...collections: Array<Collection<unknown, unknown>>
+      ): Seq.Indexed<unknown>;
+
+      /**
+       * Returns a Seq "zipped" with the provided collections by using a
+       * custom `zipper` function.
+       *
+       * ```js
+       * const a = Seq([ 1, 2, 3 ]);
+       * const b = Seq([ 4, 5, 6 ]);
+       * const c = a.zipWith((a, b) => a + b, b);
+       * // Seq [ 5, 7, 9 ]
+       * ```
+       */
+      zipWith<U, Z>(
+        zipper: (value: T, otherValue: U) => Z,
+        otherCollection: Collection<unknown, U>
+      ): Seq.Indexed<Z>;
+      zipWith<U, V, Z>(
+        zipper: (value: T, otherValue: U, thirdValue: V) => Z,
+        otherCollection: Collection<unknown, U>,
+        thirdCollection: Collection<unknown, V>
+      ): Seq.Indexed<Z>;
+      zipWith<Z>(
+        zipper: (...values: Array<unknown>) => Z,
+        ...collections: Array<Collection<unknown, unknown>>
+      ): Seq.Indexed<Z>;
+
+      [Symbol.iterator](): IterableIterator<T>;
+    }
+
+    /**
+     * `Seq` which represents a set of values.
+     *
+     * Because `Seq` are often lazy, `Seq.Set` does not provide the same guarantee
+     * of value uniqueness as the concrete `Set`.
+     */
+    namespace Set {
+      /**
+       * Returns a Seq.Set of the provided values
+       */
+      function of<T>(...values: Array<T>): Seq.Set<T>;
+    }
+
+    /**
+     * Always returns a Seq.Set, discarding associated indices or keys.
+     *
+     * Note: `Seq.Set` is a conversion function and not a class, and does not
+     * use the `new` keyword during construction.
+     */
+    function Set<T>(collection?: Iterable<T> | ArrayLike<T>): Seq.Set<T>;
+
+    interface Set<T> extends Seq<T, T>, Collection.Set<T> {
+      /**
+       * Deeply converts this Set Seq to equivalent native JavaScript Array.
+       */
+      toJS(): Array<DeepCopy<T>>;
+
+      /**
+       * Shallowly converts this Set Seq to equivalent native JavaScript Array.
+       */
+      toJSON(): Array<T>;
+
+      /**
+       * Shallowly converts this collection to an Array.
+       */
+      toArray(): Array<T>;
+
+      /**
+       * Returns itself
+       */
+      toSeq(): this;
+
+      /**
+       * Returns a new Seq with other collections concatenated to this one.
+       *
+       * All entries will be present in the resulting Seq, even if they
+       * are duplicates.
+       */
+      concat<U>(...collections: Array<Iterable<U>>): Seq.Set<T | U>;
+
+      /**
+       * Returns a new Seq.Set with values passed through a
+       * `mapper` function.
+       *
+       * ```js
+       * Seq.Set([ 1, 2 ]).map(x => 10 * x)
+       * // Seq { 10, 20 }
+       * ```
+       *
+       * Note: `map()` always returns a new instance, even if it produced the
+       * same value at every step.
+       */
+      map<M>(
+        mapper: (value: T, key: T, iter: this) => M,
+        context?: unknown
+      ): Seq.Set<M>;
+
+      /**
+       * Flat-maps the Seq, returning a Seq of the same type.
+       *
+       * Similar to `seq.map(...).flatten(true)`.
+       */
+      flatMap<M>(
+        mapper: (value: T, key: T, iter: this) => Iterable<M>,
+        context?: unknown
+      ): Seq.Set<M>;
+
+      /**
+       * Returns a new Seq with only the values for which the `predicate`
+       * function returns true.
+       *
+       * Note: `filter()` always returns a new instance, even if it results in
+       * not filtering out any values.
+       */
+      filter<F extends T>(
+        predicate: (value: T, key: T, iter: this) => value is F,
+        context?: unknown
+      ): Seq.Set<F>;
+      filter(
+        predicate: (value: T, key: T, iter: this) => unknown,
+        context?: unknown
+      ): this;
+
+      /**
+       * Returns a new set Seq with the values for which the `predicate`
+       * function returns false and another for which is returns true.
+       */
+      partition<F extends T, C>(
+        predicate: (this: C, value: T, key: T, iter: this) => value is F,
+        context?: C
+      ): [Seq.Set<T>, Seq.Set<F>];
+      partition<C>(
+        predicate: (this: C, value: T, key: T, iter: this) => unknown,
+        context?: C
+      ): [this, this];
+
+      [Symbol.iterator](): IterableIterator<T>;
+    }
+  }
+
+  /**
+   * Creates a Seq.
+   *
+   * Returns a particular kind of `Seq` based on the input.
+   *
+   *   * If a `Seq`, that same `Seq`.
+   *   * If an `Collection`, a `Seq` of the same kind (Keyed, Indexed, or Set).
+   *   * If an Array-like, an `Seq.Indexed`.
+   *   * If an Iterable Object, an `Seq.Indexed`.
+   *   * If an Object, a `Seq.Keyed`.
+   *
+   * Note: An Iterator itself will be treated as an object, becoming a `Seq.Keyed`,
+   * which is usually not what you want. You should turn your Iterator Object into
+   * an iterable object by defining a Symbol.iterator (or @@iterator) method which
+   * returns `this`.
+   *
+   * Note: `Seq` is a conversion function and not a class, and does not use the
+   * `new` keyword during construction.
+   */
+  function Seq<S extends Seq<unknown, unknown>>(seq: S): S;
+  function Seq<K, V>(collection: Collection.Keyed<K, V>): Seq.Keyed<K, V>;
+  function Seq<T>(collection: Collection.Set<T>): Seq.Set<T>;
+  function Seq<T>(
+    collection: Collection.Indexed<T> | Iterable<T> | ArrayLike<T>
+  ): Seq.Indexed<T>;
+  function Seq<V>(obj: { [key: string]: V }): Seq.Keyed<string, V>;
+  function Seq<K = unknown, V = unknown>(): Seq<K, V>;
+
+  interface Seq<K, V> extends Collection<K, V> {
+    /**
+     * Some Seqs can describe their size lazily. When this is the case,
+     * size will be an integer. Otherwise it will be undefined.
+     *
+     * For example, Seqs returned from `map()` or `reverse()`
+     * preserve the size of the original `Seq` while `filter()` does not.
+     *
+     * Note: `Range`, `Repeat` and `Seq`s made from `Array`s and `Object`s will
+     * always have a size.
+     */
+    readonly size: number | undefined;
+
+    // Force evaluation
+
+    /**
+     * Because Sequences are lazy and designed to be chained together, they do
+     * not cache their results. For example, this map function is called a total
+     * of 6 times, as each `join` iterates the Seq of three values.
+     *
+     *     var squares = Seq([ 1, 2, 3 ]).map(x => x * x)
+     *     squares.join() + squares.join()
+     *
+     * If you know a `Seq` will be used multiple times, it may be more
+     * efficient to first cache it in memory. Here, the map function is called
+     * only 3 times.
+     *
+     *     var squares = Seq([ 1, 2, 3 ]).map(x => x * x).cacheResult()
+     *     squares.join() + squares.join()
+     *
+     * Use this method judiciously, as it must fully evaluate a Seq which can be
+     * a burden on memory and possibly performance.
+     *
+     * Note: after calling `cacheResult`, a Seq will always have a `size`.
+     */
+    cacheResult(): this;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new Seq with values passed through a
+     * `mapper` function.
+     *
+     * ```js
+     * const { Seq } = require('immutable')
+     * Seq([ 1, 2 ]).map(x => 10 * x)
+     * // Seq [ 10, 20 ]
+     * ```
+     *
+     * Note: `map()` always returns a new instance, even if it produced the same
+     * value at every step.
+     */
+    map<M>(
+      mapper: (value: V, key: K, iter: this) => M,
+      context?: unknown
+    ): Seq<K, M>;
+
+    /**
+     * Returns a new Seq with values passed through a
+     * `mapper` function.
+     *
+     * ```js
+     * const { Seq } = require('immutable')
+     * Seq([ 1, 2 ]).map(x => 10 * x)
+     * // Seq [ 10, 20 ]
+     * ```
+     *
+     * Note: `map()` always returns a new instance, even if it produced the same
+     * value at every step.
+     * Note: used only for sets.
+     */
+    map<M>(
+      mapper: (value: V, key: K, iter: this) => M,
+      context?: unknown
+    ): Seq<M, M>;
+
+    /**
+     * Flat-maps the Seq, returning a Seq of the same type.
+     *
+     * Similar to `seq.map(...).flatten(true)`.
+     */
+    flatMap<M>(
+      mapper: (value: V, key: K, iter: this) => Iterable<M>,
+      context?: unknown
+    ): Seq<K, M>;
+
+    /**
+     * Flat-maps the Seq, returning a Seq of the same type.
+     *
+     * Similar to `seq.map(...).flatten(true)`.
+     * Note: Used only for sets.
+     */
+    flatMap<M>(
+      mapper: (value: V, key: K, iter: this) => Iterable<M>,
+      context?: unknown
+    ): Seq<M, M>;
+
+    /**
+     * Returns a new Seq with only the values for which the `predicate`
+     * function returns true.
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends V>(
+      predicate: (value: V, key: K, iter: this) => value is F,
+      context?: unknown
+    ): Seq<K, F>;
+    filter(
+      predicate: (value: V, key: K, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Seq with the values for which the `predicate` function
+     * returns false and another for which is returns true.
+     */
+    partition<F extends V, C>(
+      predicate: (this: C, value: V, key: K, iter: this) => value is F,
+      context?: C
+    ): [Seq<K, V>, Seq<K, F>];
+    partition<C>(
+      predicate: (this: C, value: V, key: K, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+  }
+
+  /**
+   * The `Collection` is a set of (key, value) entries which can be iterated, and
+   * is the base class for all collections in `immutable`, allowing them to
+   * make use of all the Collection methods (such as `map` and `filter`).
+   *
+   * Note: A collection is always iterated in the same order, however that order
+   * may not always be well defined, as is the case for the `Map` and `Set`.
+   *
+   * Collection is the abstract base class for concrete data structures. It
+   * cannot be constructed directly.
+   *
+   * Implementations should extend one of the subclasses, `Collection.Keyed`,
+   * `Collection.Indexed`, or `Collection.Set`.
+   */
+  namespace Collection {
+    /**
+     * @deprecated use `const { isKeyed } = require('immutable')`
+     */
+    function isKeyed(
+      maybeKeyed: unknown
+    ): maybeKeyed is Collection.Keyed<unknown, unknown>;
+
+    /**
+     * @deprecated use `const { isIndexed } = require('immutable')`
+     */
+    function isIndexed(
+      maybeIndexed: unknown
+    ): maybeIndexed is Collection.Indexed<unknown>;
+
+    /**
+     * @deprecated use `const { isAssociative } = require('immutable')`
+     */
+    function isAssociative(
+      maybeAssociative: unknown
+    ): maybeAssociative is
+      | Collection.Keyed<unknown, unknown>
+      | Collection.Indexed<unknown>;
+
+    /**
+     * @deprecated use `const { isOrdered } = require('immutable')`
+     */
+    function isOrdered(maybeOrdered: unknown): boolean;
+
+    /**
+     * Keyed Collections have discrete keys tied to each value.
+     *
+     * When iterating `Collection.Keyed`, each iteration will yield a `[K, V]`
+     * tuple, in other words, `Collection#entries` is the default iterator for
+     * Keyed Collections.
+     */
+    namespace Keyed {}
+
+    /**
+     * Creates a Collection.Keyed
+     *
+     * Similar to `Collection()`, however it expects collection-likes of [K, V]
+     * tuples if not constructed from a Collection.Keyed or JS Object.
+     *
+     * Note: `Collection.Keyed` is a conversion function and not a class, and
+     * does not use the `new` keyword during construction.
+     */
+    function Keyed<K, V>(collection?: Iterable<[K, V]>): Collection.Keyed<K, V>;
+    function Keyed<V>(obj: { [key: string]: V }): Collection.Keyed<string, V>;
+
+    interface Keyed<K, V> extends Collection<K, V> {
+      /**
+       * Deeply converts this Keyed collection to equivalent native JavaScript Object.
+       *
+       * Converts keys to Strings.
+       */
+      toJS(): { [key in string | number | symbol]: DeepCopy<V> };
+
+      /**
+       * Shallowly converts this Keyed collection to equivalent native JavaScript Object.
+       *
+       * Converts keys to Strings.
+       */
+      toJSON(): { [key in string | number | symbol]: V };
+
+      /**
+       * Shallowly converts this collection to an Array.
+       */
+      toArray(): Array<[K, V]>;
+
+      /**
+       * Returns Seq.Keyed.
+       * @override
+       */
+      toSeq(): Seq.Keyed<K, V>;
+
+      // Sequence functions
+
+      /**
+       * Returns a new Collection.Keyed of the same type where the keys and values
+       * have been flipped.
+       *
+       * <!-- runkit:activate -->
+       * ```js
+       * const { Map } = require('immutable')
+       * Map({ a: 'z', b: 'y' }).flip()
+       * // Map { "z": "a", "y": "b" }
+       * ```
+       */
+      flip(): Collection.Keyed<V, K>;
+
+      /**
+       * Returns a new Collection with other collections concatenated to this one.
+       */
+      concat<KC, VC>(
+        ...collections: Array<Iterable<[KC, VC]>>
+      ): Collection.Keyed<K | KC, V | VC>;
+      concat<C>(
+        ...collections: Array<{ [key: string]: C }>
+      ): Collection.Keyed<K | string, V | C>;
+
+      /**
+       * Returns a new Collection.Keyed with values passed through a
+       * `mapper` function.
+       *
+       * ```js
+       * const { Collection } = require('immutable')
+       * Collection.Keyed({ a: 1, b: 2 }).map(x => 10 * x)
+       * // Seq { "a": 10, "b": 20 }
+       * ```
+       *
+       * Note: `map()` always returns a new instance, even if it produced the
+       * same value at every step.
+       */
+      map<M>(
+        mapper: (value: V, key: K, iter: this) => M,
+        context?: unknown
+      ): Collection.Keyed<K, M>;
+
+      /**
+       * Returns a new Collection.Keyed of the same type with keys passed through
+       * a `mapper` function.
+       *
+       * <!-- runkit:activate -->
+       * ```js
+       * const { Map } = require('immutable')
+       * Map({ a: 1, b: 2 }).mapKeys(x => x.toUpperCase())
+       * // Map { "A": 1, "B": 2 }
+       * ```
+       *
+       * Note: `mapKeys()` always returns a new instance, even if it produced
+       * the same key at every step.
+       */
+      mapKeys<M>(
+        mapper: (key: K, value: V, iter: this) => M,
+        context?: unknown
+      ): Collection.Keyed<M, V>;
+
+      /**
+       * Returns a new Collection.Keyed of the same type with entries
+       * ([key, value] tuples) passed through a `mapper` function.
+       *
+       * <!-- runkit:activate -->
+       * ```js
+       * const { Map } = require('immutable')
+       * Map({ a: 1, b: 2 })
+       *   .mapEntries(([ k, v ]) => [ k.toUpperCase(), v * 2 ])
+       * // Map { "A": 2, "B": 4 }
+       * ```
+       *
+       * Note: `mapEntries()` always returns a new instance, even if it produced
+       * the same entry at every step.
+       *
+       * If the mapper function returns `undefined`, then the entry will be filtered
+       */
+      mapEntries<KM, VM>(
+        mapper: (
+          entry: [K, V],
+          index: number,
+          iter: this
+        ) => [KM, VM] | undefined,
+        context?: unknown
+      ): Collection.Keyed<KM, VM>;
+
+      /**
+       * Flat-maps the Collection, returning a Collection of the same type.
+       *
+       * Similar to `collection.map(...).flatten(true)`.
+       */
+      flatMap<KM, VM>(
+        mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+        context?: unknown
+      ): Collection.Keyed<KM, VM>;
+
+      /**
+       * Returns a new Collection with only the values for which the `predicate`
+       * function returns true.
+       *
+       * Note: `filter()` always returns a new instance, even if it results in
+       * not filtering out any values.
+       */
+      filter<F extends V>(
+        predicate: (value: V, key: K, iter: this) => value is F,
+        context?: unknown
+      ): Collection.Keyed<K, F>;
+      filter(
+        predicate: (value: V, key: K, iter: this) => unknown,
+        context?: unknown
+      ): this;
+
+      /**
+       * Returns a new keyed Collection with the values for which the
+       * `predicate` function returns false and another for which is returns
+       * true.
+       */
+      partition<F extends V, C>(
+        predicate: (this: C, value: V, key: K, iter: this) => value is F,
+        context?: C
+      ): [Collection.Keyed<K, V>, Collection.Keyed<K, F>];
+      partition<C>(
+        predicate: (this: C, value: V, key: K, iter: this) => unknown,
+        context?: C
+      ): [this, this];
+
+      [Symbol.iterator](): IterableIterator<[K, V]>;
+    }
+
+    /**
+     * Indexed Collections have incrementing numeric keys. They exhibit
+     * slightly different behavior than `Collection.Keyed` for some methods in order
+     * to better mirror the behavior of JavaScript's `Array`, and add methods
+     * which do not make sense on non-indexed Collections such as `indexOf`.
+     *
+     * Unlike JavaScript arrays, `Collection.Indexed`s are always dense. "Unset"
+     * indices and `undefined` indices are indistinguishable, and all indices from
+     * 0 to `size` are visited when iterated.
+     *
+     * All Collection.Indexed methods return re-indexed Collections. In other words,
+     * indices always start at 0 and increment until size. If you wish to
+     * preserve indices, using them as keys, convert to a Collection.Keyed by
+     * calling `toKeyedSeq`.
+     */
+    namespace Indexed {}
+
+    /**
+     * Creates a new Collection.Indexed.
+     *
+     * Note: `Collection.Indexed` is a conversion function and not a class, and
+     * does not use the `new` keyword during construction.
+     */
+    function Indexed<T>(
+      collection?: Iterable<T> | ArrayLike<T>
+    ): Collection.Indexed<T>;
+
+    interface Indexed<T> extends Collection<number, T> {
+      /**
+       * Deeply converts this Indexed collection to equivalent native JavaScript Array.
+       */
+      toJS(): Array<DeepCopy<T>>;
+
+      /**
+       * Shallowly converts this Indexed collection to equivalent native JavaScript Array.
+       */
+      toJSON(): Array<T>;
+
+      /**
+       * Shallowly converts this collection to an Array.
+       */
+      toArray(): Array<T>;
+
+      // Reading values
+
+      /**
+       * Returns the value associated with the provided index, or notSetValue if
+       * the index is beyond the bounds of the Collection.
+       *
+       * `index` may be a negative number, which indexes back from the end of the
+       * Collection. `s.get(-1)` gets the last item in the Collection.
+       */
+      get<NSV>(index: number, notSetValue: NSV): T | NSV;
+      get(index: number): T | undefined;
+
+      // Conversion to Seq
+
+      /**
+       * Returns Seq.Indexed.
+       * @override
+       */
+      toSeq(): Seq.Indexed<T>;
+
+      /**
+       * If this is a collection of [key, value] entry tuples, it will return a
+       * Seq.Keyed of those entries.
+       */
+      fromEntrySeq(): Seq.Keyed<unknown, unknown>;
+
+      // Combination
+
+      /**
+       * Returns a Collection of the same type with `separator` between each item
+       * in this Collection.
+       */
+      interpose(separator: T): this;
+
+      /**
+       * Returns a Collection of the same type with the provided `collections`
+       * interleaved into this collection.
+       *
+       * The resulting Collection includes the first item from each, then the
+       * second from each, etc.
+       *
+       * <!-- runkit:activate
+       *      { "preamble": "require('immutable')"}
+       * -->
+       * ```js
+       * const { List } = require('immutable')
+       * List([ 1, 2, 3 ]).interleave(List([ 'A', 'B', 'C' ]))
+       * // List [ 1, "A", 2, "B", 3, "C" ]
+       * ```
+       *
+       * The shortest Collection stops interleave.
+       *
+       * <!-- runkit:activate
+       *      { "preamble": "const { List } = require('immutable')" }
+       * -->
+       * ```js
+       * List([ 1, 2, 3 ]).interleave(
+       *   List([ 'A', 'B' ]),
+       *   List([ 'X', 'Y', 'Z' ])
+       * )
+       * // List [ 1, "A", "X", 2, "B", "Y" ]
+       * ```
+       *
+       * Since `interleave()` re-indexes values, it produces a complete copy,
+       * which has `O(N)` complexity.
+       *
+       * Note: `interleave` *cannot* be used in `withMutations`.
+       */
+      interleave(...collections: Array<Collection<unknown, T>>): this;
+
+      /**
+       * Splice returns a new indexed Collection by replacing a region of this
+       * Collection with new values. If values are not provided, it only skips the
+       * region to be removed.
+       *
+       * `index` may be a negative number, which indexes back from the end of the
+       * Collection. `s.splice(-2)` splices after the second to last item.
+       *
+       * <!-- runkit:activate -->
+       * ```js
+       * const { List } = require('immutable')
+       * List([ 'a', 'b', 'c', 'd' ]).splice(1, 2, 'q', 'r', 's')
+       * // List [ "a", "q", "r", "s", "d" ]
+       * ```
+       *
+       * Since `splice()` re-indexes values, it produces a complete copy, which
+       * has `O(N)` complexity.
+       *
+       * Note: `splice` *cannot* be used in `withMutations`.
+       */
+      splice(index: number, removeNum: number, ...values: Array<T>): this;
+
+      /**
+       * Returns a Collection of the same type "zipped" with the provided
+       * collections.
+       *
+       * Like `zipWith`, but using the default `zipper`: creating an `Array`.
+       *
+       *
+       * <!-- runkit:activate
+       *      { "preamble": "const { List } = require('immutable')" }
+       * -->
+       * ```js
+       * const a = List([ 1, 2, 3 ]);
+       * const b = List([ 4, 5, 6 ]);
+       * const c = a.zip(b); // List [ [ 1, 4 ], [ 2, 5 ], [ 3, 6 ] ]
+       * ```
+       */
+      zip<U>(other: Collection<unknown, U>): Collection.Indexed<[T, U]>;
+      zip<U, V>(
+        other: Collection<unknown, U>,
+        other2: Collection<unknown, V>
+      ): Collection.Indexed<[T, U, V]>;
+      zip(
+        ...collections: Array<Collection<unknown, unknown>>
+      ): Collection.Indexed<unknown>;
+
+      /**
+       * Returns a Collection "zipped" with the provided collections.
+       *
+       * Unlike `zip`, `zipAll` continues zipping until the longest collection is
+       * exhausted. Missing values from shorter collections are filled with `undefined`.
+       *
+       * ```js
+       * const a = List([ 1, 2 ]);
+       * const b = List([ 3, 4, 5 ]);
+       * const c = a.zipAll(b); // List [ [ 1, 3 ], [ 2, 4 ], [ undefined, 5 ] ]
+       * ```
+       */
+      zipAll<U>(other: Collection<unknown, U>): Collection.Indexed<[T, U]>;
+      zipAll<U, V>(
+        other: Collection<unknown, U>,
+        other2: Collection<unknown, V>
+      ): Collection.Indexed<[T, U, V]>;
+      zipAll(
+        ...collections: Array<Collection<unknown, unknown>>
+      ): Collection.Indexed<unknown>;
+
+      /**
+       * Returns a Collection of the same type "zipped" with the provided
+       * collections by using a custom `zipper` function.
+       *
+       * <!-- runkit:activate
+       *      { "preamble": "const { List } = require('immutable')" }
+       * -->
+       * ```js
+       * const a = List([ 1, 2, 3 ]);
+       * const b = List([ 4, 5, 6 ]);
+       * const c = a.zipWith((a, b) => a + b, b);
+       * // List [ 5, 7, 9 ]
+       * ```
+       */
+      zipWith<U, Z>(
+        zipper: (value: T, otherValue: U) => Z,
+        otherCollection: Collection<unknown, U>
+      ): Collection.Indexed<Z>;
+      zipWith<U, V, Z>(
+        zipper: (value: T, otherValue: U, thirdValue: V) => Z,
+        otherCollection: Collection<unknown, U>,
+        thirdCollection: Collection<unknown, V>
+      ): Collection.Indexed<Z>;
+      zipWith<Z>(
+        zipper: (...values: Array<unknown>) => Z,
+        ...collections: Array<Collection<unknown, unknown>>
+      ): Collection.Indexed<Z>;
+
+      // Search for value
+
+      /**
+       * Returns the first index at which a given value can be found in the
+       * Collection, or -1 if it is not present.
+       */
+      indexOf(searchValue: T): number;
+
+      /**
+       * Returns the last index at which a given value can be found in the
+       * Collection, or -1 if it is not present.
+       */
+      lastIndexOf(searchValue: T): number;
+
+      /**
+       * Returns the first index in the Collection where a value satisfies the
+       * provided predicate function. Otherwise -1 is returned.
+       */
+      findIndex(
+        predicate: (value: T, index: number, iter: this) => boolean,
+        context?: unknown
+      ): number;
+
+      /**
+       * Returns the last index in the Collection where a value satisfies the
+       * provided predicate function. Otherwise -1 is returned.
+       */
+      findLastIndex(
+        predicate: (value: T, index: number, iter: this) => boolean,
+        context?: unknown
+      ): number;
+
+      // Sequence algorithms
+
+      /**
+       * Returns a new Collection with other collections concatenated to this one.
+       */
+      concat<C>(
+        ...valuesOrCollections: Array<Iterable<C> | C>
+      ): Collection.Indexed<T | C>;
+
+      /**
+       * Returns a new Collection.Indexed with values passed through a
+       * `mapper` function.
+       *
+       * ```js
+       * const { Collection } = require('immutable')
+       * Collection.Indexed([1,2]).map(x => 10 * x)
+       * // Seq [ 1, 2 ]
+       * ```
+       *
+       * Note: `map()` always returns a new instance, even if it produced the
+       * same value at every step.
+       */
+      map<M>(
+        mapper: (value: T, key: number, iter: this) => M,
+        context?: unknown
+      ): Collection.Indexed<M>;
+
+      /**
+       * Flat-maps the Collection, returning a Collection of the same type.
+       *
+       * Similar to `collection.map(...).flatten(true)`.
+       */
+      flatMap<M>(
+        mapper: (value: T, key: number, iter: this) => Iterable<M>,
+        context?: unknown
+      ): Collection.Indexed<M>;
+
+      /**
+       * Returns a new Collection with only the values for which the `predicate`
+       * function returns true.
+       *
+       * Note: `filter()` always returns a new instance, even if it results in
+       * not filtering out any values.
+       */
+      filter<F extends T>(
+        predicate: (value: T, index: number, iter: this) => value is F,
+        context?: unknown
+      ): Collection.Indexed<F>;
+      filter(
+        predicate: (value: T, index: number, iter: this) => unknown,
+        context?: unknown
+      ): this;
+
+      /**
+       * Returns a new indexed Collection with the values for which the
+       * `predicate` function returns false and another for which is returns
+       * true.
+       */
+      partition<F extends T, C>(
+        predicate: (this: C, value: T, index: number, iter: this) => value is F,
+        context?: C
+      ): [Collection.Indexed<T>, Collection.Indexed<F>];
+      partition<C>(
+        predicate: (this: C, value: T, index: number, iter: this) => unknown,
+        context?: C
+      ): [this, this];
+
+      [Symbol.iterator](): IterableIterator<T>;
+    }
+
+    /**
+     * Set Collections only represent values. They have no associated keys or
+     * indices. Duplicate values are possible in the lazy `Seq.Set`s, however
+     * the concrete `Set` Collection does not allow duplicate values.
+     *
+     * Collection methods on Collection.Set such as `map` and `forEach` will provide
+     * the value as both the first and second arguments to the provided function.
+     *
+     * ```js
+     * const { Collection } = require('immutable')
+     * const seq = Collection.Set([ 'A', 'B', 'C' ])
+     * // Seq { "A", "B", "C" }
+     * seq.forEach((v, k) =>
+     *  assert.equal(v, k)
+     * )
+     * ```
+     */
+    namespace Set {}
+
+    /**
+     * Similar to `Collection()`, but always returns a Collection.Set.
+     *
+     * Note: `Collection.Set` is a factory function and not a class, and does
+     * not use the `new` keyword during construction.
+     */
+    function Set<T>(collection?: Iterable<T> | ArrayLike<T>): Collection.Set<T>;
+
+    interface Set<T> extends Collection<T, T> {
+      /**
+       * Deeply converts this Set collection to equivalent native JavaScript Array.
+       */
+      toJS(): Array<DeepCopy<T>>;
+
+      /**
+       * Shallowly converts this Set collection to equivalent native JavaScript Array.
+       */
+      toJSON(): Array<T>;
+
+      /**
+       * Shallowly converts this collection to an Array.
+       */
+      toArray(): Array<T>;
+
+      /**
+       * Returns Seq.Set.
+       * @override
+       */
+      toSeq(): Seq.Set<T>;
+
+      // Sequence algorithms
+
+      /**
+       * Returns a new Collection with other collections concatenated to this one.
+       */
+      concat<U>(...collections: Array<Iterable<U>>): Collection.Set<T | U>;
+
+      /**
+       * Returns a new Collection.Set with values passed through a
+       * `mapper` function.
+       *
+       * ```
+       * Collection.Set([ 1, 2 ]).map(x => 10 * x)
+       * // Seq { 1, 2 }
+       * ```
+       *
+       * Note: `map()` always returns a new instance, even if it produced the
+       * same value at every step.
+       */
+      map<M>(
+        mapper: (value: T, key: T, iter: this) => M,
+        context?: unknown
+      ): Collection.Set<M>;
+
+      /**
+       * Flat-maps the Collection, returning a Collection of the same type.
+       *
+       * Similar to `collection.map(...).flatten(true)`.
+       */
+      flatMap<M>(
+        mapper: (value: T, key: T, iter: this) => Iterable<M>,
+        context?: unknown
+      ): Collection.Set<M>;
+
+      /**
+       * Returns a new Collection with only the values for which the `predicate`
+       * function returns true.
+       *
+       * Note: `filter()` always returns a new instance, even if it results in
+       * not filtering out any values.
+       */
+      filter<F extends T>(
+        predicate: (value: T, key: T, iter: this) => value is F,
+        context?: unknown
+      ): Collection.Set<F>;
+      filter(
+        predicate: (value: T, key: T, iter: this) => unknown,
+        context?: unknown
+      ): this;
+
+      /**
+       * Returns a new set Collection with the values for which the
+       * `predicate` function returns false and another for which is returns
+       * true.
+       */
+      partition<F extends T, C>(
+        predicate: (this: C, value: T, key: T, iter: this) => value is F,
+        context?: C
+      ): [Collection.Set<T>, Collection.Set<F>];
+      partition<C>(
+        predicate: (this: C, value: T, key: T, iter: this) => unknown,
+        context?: C
+      ): [this, this];
+
+      [Symbol.iterator](): IterableIterator<T>;
+    }
+  }
+
+  /**
+   * Creates a Collection.
+   *
+   * The type of Collection created is based on the input.
+   *
+   *   * If an `Collection`, that same `Collection`.
+   *   * If an Array-like, an `Collection.Indexed`.
+   *   * If an Object with an Iterator defined, an `Collection.Indexed`.
+   *   * If an Object, an `Collection.Keyed`.
+   *
+   * This methods forces the conversion of Objects and Strings to Collections.
+   * If you want to ensure that a Collection of one item is returned, use
+   * `Seq.of`.
+   *
+   * Note: An Iterator itself will be treated as an object, becoming a `Seq.Keyed`,
+   * which is usually not what you want. You should turn your Iterator Object into
+   * an iterable object by defining a Symbol.iterator (or @@iterator) method which
+   * returns `this`.
+   *
+   * Note: `Collection` is a conversion function and not a class, and does not
+   * use the `new` keyword during construction.
+   */
+  function Collection<I extends Collection<unknown, unknown>>(collection: I): I;
+  function Collection<T>(
+    collection: Iterable<T> | ArrayLike<T>
+  ): Collection.Indexed<T>;
+  function Collection<V>(obj: {
+    [key: string]: V;
+  }): Collection.Keyed<string, V>;
+  function Collection<K = unknown, V = unknown>(): Collection<K, V>;
+
+  interface Collection<K, V> extends ValueObject {
+    // Value equality
+
+    /**
+     * True if this and the other Collection have value equality, as defined
+     * by `Immutable.is()`.
+     *
+     * Note: This is equivalent to `Immutable.is(this, other)`, but provided to
+     * allow for chained expressions.
+     */
+    equals(other: unknown): boolean;
+
+    /**
+     * Computes and returns the hashed identity for this Collection.
+     *
+     * The `hashCode` of a Collection is used to determine potential equality,
+     * and is used when adding this to a `Set` or as a key in a `Map`, enabling
+     * lookup via a different instance.
+     *
+     * <!-- runkit:activate
+     *      { "preamble": "const { Set,  List } = require('immutable')" }
+     * -->
+     * ```js
+     * const a = List([ 1, 2, 3 ]);
+     * const b = List([ 1, 2, 3 ]);
+     * assert.notStrictEqual(a, b); // different instances
+     * const set = Set([ a ]);
+     * assert.equal(set.has(b), true);
+     * ```
+     *
+     * If two values have the same `hashCode`, they are [not guaranteed
+     * to be equal][Hash Collision]. If two values have different `hashCode`s,
+     * they must not be equal.
+     *
+     * [Hash Collision]: https://en.wikipedia.org/wiki/Collision_(computer_science)
+     */
+    hashCode(): number;
+
+    // Reading values
+
+    /**
+     * Returns the value associated with the provided key, or notSetValue if
+     * the Collection does not contain this key.
+     *
+     * Note: it is possible a key may be associated with an `undefined` value,
+     * so if `notSetValue` is not provided and this method returns `undefined`,
+     * that does not guarantee the key was not found.
+     */
+    get<NSV>(key: K, notSetValue: NSV): V | NSV;
+    get(key: K): V | undefined;
+
+    /**
+     * True if a key exists within this `Collection`, using `Immutable.is`
+     * to determine equality
+     */
+    has(key: K): boolean;
+
+    /**
+     * True if a value exists within this `Collection`, using `Immutable.is`
+     * to determine equality
+     * @alias contains
+     */
+    includes(value: V): boolean;
+    contains(value: V): boolean;
+
+    /**
+     * In case the `Collection` is not empty returns the first element of the
+     * `Collection`.
+     * In case the `Collection` is empty returns the optional default
+     * value if provided, if no default value is provided returns undefined.
+     */
+    first<NSV = undefined>(notSetValue?: NSV): V | NSV;
+
+    /**
+     * In case the `Collection` is not empty returns the last element of the
+     * `Collection`.
+     * In case the `Collection` is empty returns the optional default
+     * value if provided, if no default value is provided returns undefined.
+     */
+    last<NSV = undefined>(notSetValue?: NSV): V | NSV;
+
+    // Reading deep values
+
+    /**
+     * Returns the value found by following a path of keys or indices through
+     * nested Collections.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map, List } = require('immutable')
+     * const deepData = Map({ x: List([ Map({ y: 123 }) ]) });
+     * deepData.getIn(['x', 0, 'y']) // 123
+     * ```
+     *
+     * Plain JavaScript Object or Arrays may be nested within an Immutable.js
+     * Collection, and getIn() can access those values as well:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map, List } = require('immutable')
+     * const deepData = Map({ x: [ { y: 123 } ] });
+     * deepData.getIn(['x', 0, 'y']) // 123
+     * ```
+     */
+    getIn(searchKeyPath: Iterable<unknown>, notSetValue?: unknown): unknown;
+
+    /**
+     * True if the result of following a path of keys or indices through nested
+     * Collections results in a set value.
+     */
+    hasIn(searchKeyPath: Iterable<unknown>): boolean;
+
+    // Persistent changes
+
+    /**
+     * This can be very useful as a way to "chain" a normal function into a
+     * sequence of methods. RxJS calls this "let" and lodash calls it "thru".
+     *
+     * For example, to sum a Seq after mapping and filtering:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Seq } = require('immutable')
+     *
+     * function sum(collection) {
+     *   return collection.reduce((sum, x) => sum + x, 0)
+     * }
+     *
+     * Seq([ 1, 2, 3 ])
+     *   .map(x => x + 1)
+     *   .filter(x => x % 2 === 0)
+     *   .update(sum)
+     * // 6
+     * ```
+     */
+    update<R>(updater: (value: this) => R): R;
+
+    // Conversion to JavaScript types
+
+    /**
+     * Deeply converts this Collection to equivalent native JavaScript Array or Object.
+     *
+     * `Collection.Indexed`, and `Collection.Set` become `Array`, while
+     * `Collection.Keyed` become `Object`, converting keys to Strings.
+     */
+    toJS():
+      | Array<DeepCopy<V>>
+      | { [key in string | number | symbol]: DeepCopy<V> };
+
+    /**
+     * Shallowly converts this Collection to equivalent native JavaScript Array or Object.
+     *
+     * `Collection.Indexed`, and `Collection.Set` become `Array`, while
+     * `Collection.Keyed` become `Object`, converting keys to Strings.
+     */
+    toJSON(): Array<V> | { [key in string | number | symbol]: V };
+
+    /**
+     * Shallowly converts this collection to an Array.
+     *
+     * `Collection.Indexed`, and `Collection.Set` produce an Array of values.
+     * `Collection.Keyed` produce an Array of [key, value] tuples.
+     */
+    toArray(): Array<V> | Array<[K, V]>;
+
+    /**
+     * Shallowly converts this Collection to an Object.
+     *
+     * Converts keys to Strings.
+     */
+    toObject(): { [key: string]: V };
+
+    // Conversion to Collections
+
+    /**
+     * Converts this Collection to a Map, Throws if keys are not hashable.
+     *
+     * Note: This is equivalent to `Map(this.toKeyedSeq())`, but provided
+     * for convenience and to allow for chained expressions.
+     */
+    toMap(): Map<K, V>;
+
+    /**
+     * Converts this Collection to a Map, maintaining the order of iteration.
+     *
+     * Note: This is equivalent to `OrderedMap(this.toKeyedSeq())`, but
+     * provided for convenience and to allow for chained expressions.
+     */
+    toOrderedMap(): OrderedMap<K, V>;
+
+    /**
+     * Converts this Collection to a Set, discarding keys. Throws if values
+     * are not hashable.
+     *
+     * Note: This is equivalent to `Set(this)`, but provided to allow for
+     * chained expressions.
+     */
+    toSet(): Set<V>;
+
+    /**
+     * Converts this Collection to a Set, maintaining the order of iteration and
+     * discarding keys.
+     *
+     * Note: This is equivalent to `OrderedSet(this.valueSeq())`, but provided
+     * for convenience and to allow for chained expressions.
+     */
+    toOrderedSet(): OrderedSet<V>;
+
+    /**
+     * Converts this Collection to a List, discarding keys.
+     *
+     * This is similar to `List(collection)`, but provided to allow for chained
+     * expressions. However, when called on `Map` or other keyed collections,
+     * `collection.toList()` discards the keys and creates a list of only the
+     * values, whereas `List(collection)` creates a list of entry tuples.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map, List } = require('immutable')
+     * var myMap = Map({ a: 'Apple', b: 'Banana' })
+     * List(myMap) // List [ [ "a", "Apple" ], [ "b", "Banana" ] ]
+     * myMap.toList() // List [ "Apple", "Banana" ]
+     * ```
+     */
+    toList(): List<V>;
+
+    /**
+     * Converts this Collection to a Stack, discarding keys. Throws if values
+     * are not hashable.
+     *
+     * Note: This is equivalent to `Stack(this)`, but provided to allow for
+     * chained expressions.
+     */
+    toStack(): Stack<V>;
+
+    // Conversion to Seq
+
+    /**
+     * Converts this Collection to a Seq of the same kind (indexed,
+     * keyed, or set).
+     */
+    toSeq(): Seq<K, V>;
+
+    /**
+     * Returns a Seq.Keyed from this Collection where indices are treated as keys.
+     *
+     * This is useful if you want to operate on an
+     * Collection.Indexed and preserve the [index, value] pairs.
+     *
+     * The returned Seq will have identical iteration order as
+     * this Collection.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Seq } = require('immutable')
+     * const indexedSeq = Seq([ 'A', 'B', 'C' ])
+     * // Seq [ "A", "B", "C" ]
+     * indexedSeq.filter(v => v === 'B')
+     * // Seq [ "B" ]
+     * const keyedSeq = indexedSeq.toKeyedSeq()
+     * // Seq { 0: "A", 1: "B", 2: "C" }
+     * keyedSeq.filter(v => v === 'B')
+     * // Seq { 1: "B" }
+     * ```
+     */
+    toKeyedSeq(): Seq.Keyed<K, V>;
+
+    /**
+     * Returns an Seq.Indexed of the values of this Collection, discarding keys.
+     */
+    toIndexedSeq(): Seq.Indexed<V>;
+
+    /**
+     * Returns a Seq.Set of the values of this Collection, discarding keys.
+     */
+    toSetSeq(): Seq.Set<V>;
+
+    // Iterators
+
+    /**
+     * An iterator of this `Collection`'s keys.
+     *
+     * Note: this will return an ES6 iterator which does not support
+     * Immutable.js sequence algorithms. Use `keySeq` instead, if this is
+     * what you want.
+     */
+    keys(): IterableIterator<K>;
+
+    /**
+     * An iterator of this `Collection`'s values.
+     *
+     * Note: this will return an ES6 iterator which does not support
+     * Immutable.js sequence algorithms. Use `valueSeq` instead, if this is
+     * what you want.
+     */
+    values(): IterableIterator<V>;
+
+    /**
+     * An iterator of this `Collection`'s entries as `[ key, value ]` tuples.
+     *
+     * Note: this will return an ES6 iterator which does not support
+     * Immutable.js sequence algorithms. Use `entrySeq` instead, if this is
+     * what you want.
+     */
+    entries(): IterableIterator<[K, V]>;
+
+    [Symbol.iterator](): IterableIterator<unknown>;
+
+    // Collections (Seq)
+
+    /**
+     * Returns a new Seq.Indexed of the keys of this Collection,
+     * discarding values.
+     */
+    keySeq(): Seq.Indexed<K>;
+
+    /**
+     * Returns an Seq.Indexed of the values of this Collection, discarding keys.
+     */
+    valueSeq(): Seq.Indexed<V>;
+
+    /**
+     * Returns a new Seq.Indexed of [key, value] tuples.
+     */
+    entrySeq(): Seq.Indexed<[K, V]>;
+
+    // Sequence algorithms
+
+    /**
+     * Returns a new Collection of the same type with values passed through a
+     * `mapper` function.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Collection } = require('immutable')
+     * Collection({ a: 1, b: 2 }).map(x => 10 * x)
+     * // Seq { "a": 10, "b": 20 }
+     * ```
+     *
+     * Note: `map()` always returns a new instance, even if it produced the same
+     * value at every step.
+     */
+    map<M>(
+      mapper: (value: V, key: K, iter: this) => M,
+      context?: unknown
+    ): Collection<K, M>;
+
+    /**
+     * Note: used only for sets, which return Collection<M, M> but are otherwise
+     * identical to normal `map()`.
+     *
+     * @ignore
+     */
+    map(...args: Array<never>): unknown;
+
+    /**
+     * Returns a new Collection of the same type with only the entries for which
+     * the `predicate` function returns true.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * Map({ a: 1, b: 2, c: 3, d: 4}).filter(x => x % 2 === 0)
+     * // Map { "b": 2, "d": 4 }
+     * ```
+     *
+     * Note: `filter()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filter<F extends V>(
+      predicate: (value: V, key: K, iter: this) => value is F,
+      context?: unknown
+    ): Collection<K, F>;
+    filter(
+      predicate: (value: V, key: K, iter: this) => unknown,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Collection of the same type with only the entries for which
+     * the `predicate` function returns false.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * Map({ a: 1, b: 2, c: 3, d: 4}).filterNot(x => x % 2 === 0)
+     * // Map { "a": 1, "c": 3 }
+     * ```
+     *
+     * Note: `filterNot()` always returns a new instance, even if it results in
+     * not filtering out any values.
+     */
+    filterNot(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Collection with the values for which the `predicate`
+     * function returns false and another for which is returns true.
+     */
+    partition<F extends V, C>(
+      predicate: (this: C, value: V, key: K, iter: this) => value is F,
+      context?: C
+    ): [Collection<K, V>, Collection<K, F>];
+    partition<C>(
+      predicate: (this: C, value: V, key: K, iter: this) => unknown,
+      context?: C
+    ): [this, this];
+
+    /**
+     * Returns a new Collection of the same type in reverse order.
+     */
+    reverse(): this;
+
+    /**
+     * Returns a new Collection of the same type which includes the same entries,
+     * stably sorted by using a `comparator`.
+     *
+     * If a `comparator` is not provided, a default comparator uses `<` and `>`.
+     *
+     * `comparator(valueA, valueB)`:
+     *
+     *   * Returns `0` if the elements should not be swapped.
+     *   * Returns `-1` (or any negative number) if `valueA` comes before `valueB`
+     *   * Returns `1` (or any positive number) if `valueA` comes after `valueB`
+     *   * Alternatively, can return a value of the `PairSorting` enum type
+     *   * Is pure, i.e. it must always return the same value for the same pair
+     *     of values.
+     *
+     * When sorting collections which have no defined order, their ordered
+     * equivalents will be returned. e.g. `map.sort()` returns OrderedMap.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * Map({ "c": 3, "a": 1, "b": 2 }).sort((a, b) => {
+     *   if (a < b) { return -1; }
+     *   if (a > b) { return 1; }
+     *   if (a === b) { return 0; }
+     * });
+     * // OrderedMap { "a": 1, "b": 2, "c": 3 }
+     * ```
+     *
+     * Note: `sort()` Always returns a new instance, even if the original was
+     * already sorted.
+     *
+     * Note: This is always an eager operation.
+     */
+    sort(comparator?: Comparator<V>): this;
+
+    /**
+     * Like `sort`, but also accepts a `comparatorValueMapper` which allows for
+     * sorting by more sophisticated means:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { Map } = require('immutable')
+     * const beattles = Map({
+     *   John: { name: "Lennon" },
+     *   Paul: { name: "McCartney" },
+     *   George: { name: "Harrison" },
+     *   Ringo: { name: "Starr" },
+     * });
+     * beattles.sortBy(member => member.name);
+     * ```
+     *
+     * Note: `sortBy()` Always returns a new instance, even if the original was
+     * already sorted.
+     *
+     * Note: This is always an eager operation.
+     */
+    sortBy<C>(
+      comparatorValueMapper: (value: V, key: K, iter: this) => C,
+      comparator?: Comparator<C>
+    ): this;
+
+    /**
+     * Returns a `Map` of `Collection`, grouped by the return
+     * value of the `grouper` function.
+     *
+     * Note: This is always an eager operation.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List, Map } = require('immutable')
+     * const listOfMaps = List([
+     *   Map({ v: 0 }),
+     *   Map({ v: 1 }),
+     *   Map({ v: 1 }),
+     *   Map({ v: 0 }),
+     *   Map({ v: 2 })
+     * ])
+     * const groupsOfMaps = listOfMaps.groupBy(x => x.get('v'))
+     * // Map {
+     * //   0: List [ Map{ "v": 0 }, Map { "v": 0 } ],
+     * //   1: List [ Map{ "v": 1 }, Map { "v": 1 } ],
+     * //   2: List [ Map{ "v": 2 } ],
+     * // }
+     * ```
+     */
+    groupBy<G>(
+      grouper: (value: V, key: K, iter: this) => G,
+      context?: unknown
+    ): Map<G, this>;
+
+    // Side effects
+
+    /**
+     * The `sideEffect` is executed for every entry in the Collection.
+     *
+     * Unlike `Array#forEach`, if any call of `sideEffect` returns
+     * `false`, the iteration will stop. Returns the number of entries iterated
+     * (including the last iteration which returned false).
+     */
+    forEach(
+      sideEffect: (value: V, key: K, iter: this) => unknown,
+      context?: unknown
+    ): number;
+
+    // Creating subsets
+
+    /**
+     * Returns a new Collection of the same type representing a portion of this
+     * Collection from start up to but not including end.
+     *
+     * If begin is negative, it is offset from the end of the Collection. e.g.
+     * `slice(-2)` returns a Collection of the last two entries. If it is not
+     * provided the new Collection will begin at the beginning of this Collection.
+     *
+     * If end is negative, it is offset from the end of the Collection. e.g.
+     * `slice(0, -1)` returns a Collection of everything but the last entry. If
+     * it is not provided, the new Collection will continue through the end of
+     * this Collection.
+     *
+     * If the requested slice is equivalent to the current Collection, then it
+     * will return itself.
+     */
+    slice(begin?: number, end?: number): this;
+
+    /**
+     * Returns a new Collection of the same type containing all entries except
+     * the first.
+     */
+    rest(): this;
+
+    /**
+     * Returns a new Collection of the same type containing all entries except
+     * the last.
+     */
+    butLast(): this;
+
+    /**
+     * Returns a new Collection of the same type which excludes the first `amount`
+     * entries from this Collection.
+     */
+    skip(amount: number): this;
+
+    /**
+     * Returns a new Collection of the same type which excludes the last `amount`
+     * entries from this Collection.
+     */
+    skipLast(amount: number): this;
+
+    /**
+     * Returns a new Collection of the same type which includes entries starting
+     * from when `predicate` first returns false.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * List([ 'dog', 'frog', 'cat', 'hat', 'god' ])
+     *   .skipWhile(x => x.match(/g/))
+     * // List [ "cat", "hat", "god" ]
+     * ```
+     */
+    skipWhile(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Collection of the same type which includes entries starting
+     * from when `predicate` first returns true.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * List([ 'dog', 'frog', 'cat', 'hat', 'god' ])
+     *   .skipUntil(x => x.match(/hat/))
+     * // List [ "hat", "god" ]
+     * ```
+     */
+    skipUntil(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Collection of the same type which includes the first `amount`
+     * entries from this Collection.
+     */
+    take(amount: number): this;
+
+    /**
+     * Returns a new Collection of the same type which includes the last `amount`
+     * entries from this Collection.
+     */
+    takeLast(amount: number): this;
+
+    /**
+     * Returns a new Collection of the same type which includes entries from this
+     * Collection as long as the `predicate` returns true.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * List([ 'dog', 'frog', 'cat', 'hat', 'god' ])
+     *   .takeWhile(x => x.match(/o/))
+     * // List [ "dog", "frog" ]
+     * ```
+     */
+    takeWhile(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): this;
+
+    /**
+     * Returns a new Collection of the same type which includes entries from this
+     * Collection as long as the `predicate` returns false.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List } = require('immutable')
+     * List([ 'dog', 'frog', 'cat', 'hat', 'god' ])
+     *   .takeUntil(x => x.match(/at/))
+     * // List [ "dog", "frog" ]
+     * ```
+     */
+    takeUntil(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): this;
+
+    // Combination
+
+    /**
+     * Returns a new Collection of the same type with other values and
+     * collection-like concatenated to this one.
+     *
+     * For Seqs, all entries will be present in the resulting Seq, even if they
+     * have the same key.
+     */
+    concat(
+      ...valuesOrCollections: Array<unknown>
+    ): Collection<unknown, unknown>;
+
+    /**
+     * Flattens nested Collections.
+     *
+     * Will deeply flatten the Collection by default, returning a Collection of the
+     * same type, but a `depth` can be provided in the form of a number or
+     * boolean (where true means to shallowly flatten one level). A depth of 0
+     * (or shallow: false) will deeply flatten.
+     *
+     * Flattens only others Collection, not Arrays or Objects.
+     *
+     * Note: `flatten(true)` operates on Collection<unknown, Collection<K, V>> and
+     * returns Collection<K, V>
+     */
+    flatten(depth?: number): Collection<unknown, unknown>;
+    // tslint:disable-next-line unified-signatures
+    flatten(shallow?: boolean): Collection<unknown, unknown>;
+
+    /**
+     * Flat-maps the Collection, returning a Collection of the same type.
+     *
+     * Similar to `collection.map(...).flatten(true)`.
+     */
+    flatMap<M>(
+      mapper: (value: V, key: K, iter: this) => Iterable<M>,
+      context?: unknown
+    ): Collection<K, M>;
+
+    /**
+     * Flat-maps the Collection, returning a Collection of the same type.
+     *
+     * Similar to `collection.map(...).flatten(true)`.
+     * Used for Dictionaries only.
+     */
+    flatMap<KM, VM>(
+      mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+      context?: unknown
+    ): Collection<KM, VM>;
+
+    // Reducing a value
+
+    /**
+     * Reduces the Collection to a value by calling the `reducer` for every entry
+     * in the Collection and passing along the reduced value.
+     *
+     * If `initialReduction` is not provided, the first item in the
+     * Collection will be used.
+     *
+     * @see `Array#reduce`.
+     */
+    reduce<R>(
+      reducer: (reduction: R, value: V, key: K, iter: this) => R,
+      initialReduction: R,
+      context?: unknown
+    ): R;
+    reduce<R>(
+      reducer: (reduction: V | R, value: V, key: K, iter: this) => R
+    ): R;
+
+    /**
+     * Reduces the Collection in reverse (from the right side).
+     *
+     * Note: Similar to this.reverse().reduce(), and provided for parity
+     * with `Array#reduceRight`.
+     */
+    reduceRight<R>(
+      reducer: (reduction: R, value: V, key: K, iter: this) => R,
+      initialReduction: R,
+      context?: unknown
+    ): R;
+    reduceRight<R>(
+      reducer: (reduction: V | R, value: V, key: K, iter: this) => R
+    ): R;
+
+    /**
+     * True if `predicate` returns true for all entries in the Collection.
+     */
+    every(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): boolean;
+
+    /**
+     * True if `predicate` returns true for any entry in the Collection.
+     */
+    some(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): boolean;
+
+    /**
+     * Joins values together as a string, inserting a separator between each.
+     * The default separator is `","`.
+     */
+    join(separator?: string): string;
+
+    /**
+     * Returns true if this Collection includes no values.
+     *
+     * For some lazy `Seq`, `isEmpty` might need to iterate to determine
+     * emptiness. At most one iteration will occur.
+     */
+    isEmpty(): boolean;
+
+    /**
+     * Returns the size of this Collection.
+     *
+     * Regardless of if this Collection can describe its size lazily (some Seqs
+     * cannot), this method will always return the correct size. E.g. it
+     * evaluates a lazy `Seq` if necessary.
+     *
+     * If `predicate` is provided, then this returns the count of entries in the
+     * Collection for which the `predicate` returns true.
+     */
+    count(): number;
+    count(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): number;
+
+    /**
+     * Returns a `Seq.Keyed` of counts, grouped by the return value of
+     * the `grouper` function.
+     *
+     * Note: This is not a lazy operation.
+     */
+    countBy<G>(
+      grouper: (value: V, key: K, iter: this) => G,
+      context?: unknown
+    ): Map<G, number>;
+
+    // Search for value
+
+    /**
+     * Returns the first value for which the `predicate` returns true.
+     */
+    find(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown,
+      notSetValue?: V
+    ): V | undefined;
+
+    /**
+     * Returns the last value for which the `predicate` returns true.
+     *
+     * Note: `predicate` will be called for each entry in reverse.
+     */
+    findLast(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown,
+      notSetValue?: V
+    ): V | undefined;
+
+    /**
+     * Returns the first [key, value] entry for which the `predicate` returns true.
+     */
+    findEntry(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown,
+      notSetValue?: V
+    ): [K, V] | undefined;
+
+    /**
+     * Returns the last [key, value] entry for which the `predicate`
+     * returns true.
+     *
+     * Note: `predicate` will be called for each entry in reverse.
+     */
+    findLastEntry(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown,
+      notSetValue?: V
+    ): [K, V] | undefined;
+
+    /**
+     * Returns the key for which the `predicate` returns true.
+     */
+    findKey(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): K | undefined;
+
+    /**
+     * Returns the last key for which the `predicate` returns true.
+     *
+     * Note: `predicate` will be called for each entry in reverse.
+     */
+    findLastKey(
+      predicate: (value: V, key: K, iter: this) => boolean,
+      context?: unknown
+    ): K | undefined;
+
+    /**
+     * Returns the key associated with the search value, or undefined.
+     */
+    keyOf(searchValue: V): K | undefined;
+
+    /**
+     * Returns the last key associated with the search value, or undefined.
+     */
+    lastKeyOf(searchValue: V): K | undefined;
+
+    /**
+     * Returns the maximum value in this collection. If any values are
+     * comparatively equivalent, the first one found will be returned.
+     *
+     * The `comparator` is used in the same way as `Collection#sort`. If it is not
+     * provided, the default comparator is `>`.
+     *
+     * When two values are considered equivalent, the first encountered will be
+     * returned. Otherwise, `max` will operate independent of the order of input
+     * as long as the comparator is commutative. The default comparator `>` is
+     * commutative *only* when types do not differ.
+     *
+     * If `comparator` returns 0 and either value is NaN, undefined, or null,
+     * that value will be returned.
+     */
+    max(comparator?: Comparator<V>): V | undefined;
+
+    /**
+     * Like `max`, but also accepts a `comparatorValueMapper` which allows for
+     * comparing by more sophisticated means:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List, } = require('immutable');
+     * const l = List([
+     *   { name: 'Bob', avgHit: 1 },
+     *   { name: 'Max', avgHit: 3 },
+     *   { name: 'Lili', avgHit: 2 } ,
+     * ]);
+     * l.maxBy(i => i.avgHit); // will output { name: 'Max', avgHit: 3 }
+     * ```
+     */
+    maxBy<C>(
+      comparatorValueMapper: (value: V, key: K, iter: this) => C,
+      comparator?: Comparator<C>
+    ): V | undefined;
+
+    /**
+     * Returns the minimum value in this collection. If any values are
+     * comparatively equivalent, the first one found will be returned.
+     *
+     * The `comparator` is used in the same way as `Collection#sort`. If it is not
+     * provided, the default comparator is `<`.
+     *
+     * When two values are considered equivalent, the first encountered will be
+     * returned. Otherwise, `min` will operate independent of the order of input
+     * as long as the comparator is commutative. The default comparator `<` is
+     * commutative *only* when types do not differ.
+     *
+     * If `comparator` returns 0 and either value is NaN, undefined, or null,
+     * that value will be returned.
+     */
+    min(comparator?: Comparator<V>): V | undefined;
+
+    /**
+     * Like `min`, but also accepts a `comparatorValueMapper` which allows for
+     * comparing by more sophisticated means:
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List, } = require('immutable');
+     * const l = List([
+     *   { name: 'Bob', avgHit: 1 },
+     *   { name: 'Max', avgHit: 3 },
+     *   { name: 'Lili', avgHit: 2 } ,
+     * ]);
+     * l.minBy(i => i.avgHit); // will output { name: 'Bob', avgHit: 1 }
+     * ```
+     */
+    minBy<C>(
+      comparatorValueMapper: (value: V, key: K, iter: this) => C,
+      comparator?: Comparator<C>
+    ): V | undefined;
+
+    // Comparison
+
+    /**
+     * True if `iter` includes every value in this Collection.
+     */
+    isSubset(iter: Iterable<V>): boolean;
+
+    /**
+     * True if this Collection includes every value in `iter`.
+     */
+    isSuperset(iter: Iterable<V>): boolean;
+  }
+
+  /**
+   * The interface to fulfill to qualify as a Value Object.
+   */
+  interface ValueObject {
+    /**
+     * True if this and the other Collection have value equality, as defined
+     * by `Immutable.is()`.
+     *
+     * Note: This is equivalent to `Immutable.is(this, other)`, but provided to
+     * allow for chained expressions.
+     */
+    equals(other: unknown): boolean;
+
+    /**
+     * Computes and returns the hashed identity for this Collection.
+     *
+     * The `hashCode` of a Collection is used to determine potential equality,
+     * and is used when adding this to a `Set` or as a key in a `Map`, enabling
+     * lookup via a different instance.
+     *
+     * <!-- runkit:activate -->
+     * ```js
+     * const { List, Set } = require('immutable');
+     * const a = List([ 1, 2, 3 ]);
+     * const b = List([ 1, 2, 3 ]);
+     * assert.notStrictEqual(a, b); // different instances
+     * const set = Set([ a ]);
+     * assert.equal(set.has(b), true);
+     * ```
+     *
+     * Note: hashCode() MUST return a Uint32 number. The easiest way to
+     * guarantee this is to return `myHash | 0` from a custom implementation.
+     *
+     * If two values have the same `hashCode`, they are [not guaranteed
+     * to be equal][Hash Collision]. If two values have different `hashCode`s,
+     * they must not be equal.
+     *
+     * Note: `hashCode()` is not guaranteed to always be called before
+     * `equals()`. Most but not all Immutable.js collections use hash codes to
+     * organize their internal data structures, while all Immutable.js
+     * collections use equality during lookups.
+     *
+     * [Hash Collision]: https://en.wikipedia.org/wiki/Collision_(computer_science)
+     */
+    hashCode(): number;
+  }
+
+  /**
+   * Deeply converts plain JS objects and arrays to Immutable Maps and Lists.
+   *
+   * `fromJS` will convert Arrays and [array-like objects][2] to a List, and
+   * plain objects (without a custom prototype) to a Map. [Iterable objects][3]
+   * may be converted to List, Map, or Set.
+   *
+   * If a `reviver` is optionally provided, it will be called with every
+   * collection as a Seq (beginning with the most nested collections
+   * and proceeding to the top-level collection itself), along with the key
+   * referring to each collection and the parent JS object provided as `this`.
+   * For the top level, object, the key will be `""`. This `reviver` is expected
+   * to return a new Immutable Collection, allowing for custom conversions from
+   * deep JS objects. Finally, a `path` is provided which is the sequence of
+   * keys to this value from the starting value.
+   *
+   * `reviver` acts similarly to the [same parameter in `JSON.parse`][1].
+   *
+   * If `reviver` is not provided, the default behavior will convert Objects
+   * into Maps and Arrays into Lists like so:
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { fromJS, isKeyed } = require('immutable')
+   * function (key, value) {
+   *   return isKeyed(value) ? value.toMap() : value.toList()
+   * }
+   * ```
+   *
+   * Accordingly, this example converts native JS data to OrderedMap and List:
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { fromJS, isKeyed } = require('immutable')
+   * fromJS({ a: {b: [10, 20, 30]}, c: 40}, function (key, value, path) {
+   *   console.log(key, value, path)
+   *   return isKeyed(value) ? value.toOrderedMap() : value.toList()
+   * })
+   *
+   * > "b", [ 10, 20, 30 ], [ "a", "b" ]
+   * > "a", {b: [10, 20, 30]}, [ "a" ]
+   * > "", {a: {b: [10, 20, 30]}, c: 40}, []
+   * ```
+   *
+   * Keep in mind, when using JS objects to construct Immutable Maps, that
+   * JavaScript Object properties are always strings, even if written in a
+   * quote-less shorthand, while Immutable Maps accept keys of any type.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { Map } = require('immutable')
+   * let obj = { 1: "one" };
+   * Object.keys(obj); // [ "1" ]
+   * assert.equal(obj["1"], obj[1]); // "one" === "one"
+   *
+   * let map = Map(obj);
+   * assert.notEqual(map.get("1"), map.get(1)); // "one" !== undefined
+   * ```
+   *
+   * Property access for JavaScript Objects first converts the key to a string,
+   * but since Immutable Map keys can be of any type the argument to `get()` is
+   * not altered.
+   *
+   * [1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Example.3A_Using_the_reviver_parameter
+   *      "Using the reviver parameter"
+   * [2]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Indexed_collections#working_with_array-like_objects
+   *      "Working with array-like objects"
+   * [3]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#the_iterable_protocol
+   *      "The iterable protocol"
+   */
+  function fromJS<JSValue>(
+    jsValue: JSValue,
+    reviver?: undefined
+  ): FromJS<JSValue>;
+  function fromJS(
+    jsValue: unknown,
+    reviver?: (
+      key: string | number,
+      sequence: Collection.Keyed<string, unknown> | Collection.Indexed<unknown>,
+      path?: Array<string | number>
+    ) => unknown
+  ): Collection<unknown, unknown>;
+
+  type FromJS<JSValue> = JSValue extends FromJSNoTransform
+    ? JSValue
+    : JSValue extends Array<any>
+    ? FromJSArray<JSValue>
+    : JSValue extends {}
+    ? FromJSObject<JSValue>
+    : any;
+
+  type FromJSNoTransform =
+    | Collection<any, any>
+    | number
+    | string
+    | null
+    | undefined;
+
+  type FromJSArray<JSValue> = JSValue extends Array<infer T>
+    ? List<FromJS<T>>
+    : never;
+
+  type FromJSObject<JSValue> = JSValue extends {}
+    ? Map<keyof JSValue, FromJS<JSValue[keyof JSValue]>>
+    : never;
+
+  /**
+   * Value equality check with semantics similar to `Object.is`, but treats
+   * Immutable `Collection`s as values, equal if the second `Collection` includes
+   * equivalent values.
+   *
+   * It's used throughout Immutable when checking for equality, including `Map`
+   * key equality and `Set` membership.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { Map, is } = require('immutable')
+   * const map1 = Map({ a: 1, b: 1, c: 1 })
+   * const map2 = Map({ a: 1, b: 1, c: 1 })
+   * assert.equal(map1 !== map2, true)
+   * assert.equal(Object.is(map1, map2), false)
+   * assert.equal(is(map1, map2), true)
+   * ```
+   *
+   * `is()` compares primitive types like strings and numbers, Immutable.js
+   * collections like `Map` and `List`, but also any custom object which
+   * implements `ValueObject` by providing `equals()` and `hashCode()` methods.
+   *
+   * Note: Unlike `Object.is`, `Immutable.is` assumes `0` and `-0` are the same
+   * value, matching the behavior of ES6 Map key equality.
+   */
+  function is(first: unknown, second: unknown): boolean;
+
+  /**
+   * The `hash()` function is an important part of how Immutable determines if
+   * two values are equivalent and is used to determine how to store those
+   * values. Provided with any value, `hash()` will return a 31-bit integer.
+   *
+   * When designing Objects which may be equal, it's important that when a
+   * `.equals()` method returns true, that both values `.hashCode()` method
+   * return the same value. `hash()` may be used to produce those values.
+   *
+   * For non-Immutable Objects that do not provide a `.hashCode()` functions
+   * (including plain Objects, plain Arrays, Date objects, etc), a unique hash
+   * value will be created for each *instance*. That is, the create hash
+   * represents referential equality, and not value equality for Objects. This
+   * ensures that if that Object is mutated over time that its hash code will
+   * remain consistent, allowing Objects to be used as keys and values in
+   * Immutable.js collections.
+   *
+   * Note that `hash()` attempts to balance between speed and avoiding
+   * collisions, however it makes no attempt to produce secure hashes.
+   *
+   * *New in Version 4.0*
+   */
+  function hash(value: unknown): number;
+
+  /**
+   * True if `maybeImmutable` is an Immutable Collection or Record.
+   *
+   * Note: Still returns true even if the collections is within a `withMutations()`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { isImmutable, Map, List, Stack } = require('immutable');
+   * isImmutable([]); // false
+   * isImmutable({}); // false
+   * isImmutable(Map()); // true
+   * isImmutable(List()); // true
+   * isImmutable(Stack()); // true
+   * isImmutable(Map().asMutable()); // true
+   * ```
+   */
+  function isImmutable(
+    maybeImmutable: unknown
+  ): maybeImmutable is Collection<unknown, unknown>;
+
+  /**
+   * True if `maybeCollection` is a Collection, or any of its subclasses.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { isCollection, Map, List, Stack } = require('immutable');
+   * isCollection([]); // false
+   * isCollection({}); // false
+   * isCollection(Map()); // true
+   * isCollection(List()); // true
+   * isCollection(Stack()); // true
+   * ```
+   */
+  function isCollection(
+    maybeCollection: unknown
+  ): maybeCollection is Collection<unknown, unknown>;
+
+  /**
+   * True if `maybeKeyed` is a Collection.Keyed, or any of its subclasses.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { isKeyed, Map, List, Stack } = require('immutable');
+   * isKeyed([]); // false
+   * isKeyed({}); // false
+   * isKeyed(Map()); // true
+   * isKeyed(List()); // false
+   * isKeyed(Stack()); // false
+   * ```
+   */
+  function isKeyed(
+    maybeKeyed: unknown
+  ): maybeKeyed is Collection.Keyed<unknown, unknown>;
+
+  /**
+   * True if `maybeIndexed` is a Collection.Indexed, or any of its subclasses.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { isIndexed, Map, List, Stack, Set } = require('immutable');
+   * isIndexed([]); // false
+   * isIndexed({}); // false
+   * isIndexed(Map()); // false
+   * isIndexed(List()); // true
+   * isIndexed(Stack()); // true
+   * isIndexed(Set()); // false
+   * ```
+   */
+  function isIndexed(
+    maybeIndexed: unknown
+  ): maybeIndexed is Collection.Indexed<unknown>;
+
+  /**
+   * True if `maybeAssociative` is either a Keyed or Indexed Collection.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { isAssociative, Map, List, Stack, Set } = require('immutable');
+   * isAssociative([]); // false
+   * isAssociative({}); // false
+   * isAssociative(Map()); // true
+   * isAssociative(List()); // true
+   * isAssociative(Stack()); // true
+   * isAssociative(Set()); // false
+   * ```
+   */
+  function isAssociative(
+    maybeAssociative: unknown
+  ): maybeAssociative is
+    | Collection.Keyed<unknown, unknown>
+    | Collection.Indexed<unknown>;
+
+  /**
+   * True if `maybeOrdered` is a Collection where iteration order is well
+   * defined. True for Collection.Indexed as well as OrderedMap and OrderedSet.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { isOrdered, Map, OrderedMap, List, Set } = require('immutable');
+   * isOrdered([]); // false
+   * isOrdered({}); // false
+   * isOrdered(Map()); // false
+   * isOrdered(OrderedMap()); // true
+   * isOrdered(List()); // true
+   * isOrdered(Set()); // false
+   * ```
+   */
+  function isOrdered(maybeOrdered: unknown): boolean;
+
+  /**
+   * True if `maybeValue` is a JavaScript Object which has *both* `equals()`
+   * and `hashCode()` methods.
+   *
+   * Any two instances of *value objects* can be compared for value equality with
+   * `Immutable.is()` and can be used as keys in a `Map` or members in a `Set`.
+   */
+  function isValueObject(maybeValue: unknown): maybeValue is ValueObject;
+
+  /**
+   * True if `maybeSeq` is a Seq.
+   */
+  function isSeq(
+    maybeSeq: unknown
+  ): maybeSeq is
+    | Seq.Indexed<unknown>
+    | Seq.Keyed<unknown, unknown>
+    | Seq.Set<unknown>;
+
+  /**
+   * True if `maybeList` is a List.
+   */
+  function isList(maybeList: unknown): maybeList is List<unknown>;
+
+  /**
+   * True if `maybeMap` is a Map.
+   *
+   * Also true for OrderedMaps.
+   */
+  function isMap(maybeMap: unknown): maybeMap is Map<unknown, unknown>;
+
+  /**
+   * True if `maybeOrderedMap` is an OrderedMap.
+   */
+  function isOrderedMap(
+    maybeOrderedMap: unknown
+  ): maybeOrderedMap is OrderedMap<unknown, unknown>;
+
+  /**
+   * True if `maybeStack` is a Stack.
+   */
+  function isStack(maybeStack: unknown): maybeStack is Stack<unknown>;
+
+  /**
+   * True if `maybeSet` is a Set.
+   *
+   * Also true for OrderedSets.
+   */
+  function isSet(maybeSet: unknown): maybeSet is Set<unknown>;
+
+  /**
+   * True if `maybeOrderedSet` is an OrderedSet.
+   */
+  function isOrderedSet(
+    maybeOrderedSet: unknown
+  ): maybeOrderedSet is OrderedSet<unknown>;
+
+  /**
+   * True if `maybeRecord` is a Record.
+   */
+  function isRecord(maybeRecord: unknown): maybeRecord is Record<{}>;
+
+  /**
+   * Returns the value within the provided collection associated with the
+   * provided key, or notSetValue if the key is not defined in the collection.
+   *
+   * A functional alternative to `collection.get(key)` which will also work on
+   * plain Objects and Arrays as an alternative for `collection[key]`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { get } = require('immutable')
+   * get([ 'dog', 'frog', 'cat' ], 2) // 'frog'
+   * get({ x: 123, y: 456 }, 'x') // 123
+   * get({ x: 123, y: 456 }, 'z', 'ifNotSet') // 'ifNotSet'
+   * ```
+   */
+  function get<K, V>(collection: Collection<K, V>, key: K): V | undefined;
+  function get<K, V, NSV>(
+    collection: Collection<K, V>,
+    key: K,
+    notSetValue: NSV
+  ): V | NSV;
+  function get<TProps extends object, K extends keyof TProps>(
+    record: Record<TProps>,
+    key: K,
+    notSetValue: unknown
+  ): TProps[K];
+  function get<V>(collection: Array<V>, key: number): V | undefined;
+  function get<V, NSV>(
+    collection: Array<V>,
+    key: number,
+    notSetValue: NSV
+  ): V | NSV;
+  function get<C extends object, K extends keyof C>(
+    object: C,
+    key: K,
+    notSetValue: unknown
+  ): C[K];
+  function get<V>(collection: { [key: string]: V }, key: string): V | undefined;
+  function get<V, NSV>(
+    collection: { [key: string]: V },
+    key: string,
+    notSetValue: NSV
+  ): V | NSV;
+
+  /**
+   * Returns true if the key is defined in the provided collection.
+   *
+   * A functional alternative to `collection.has(key)` which will also work with
+   * plain Objects and Arrays as an alternative for
+   * `collection.hasOwnProperty(key)`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { has } = require('immutable')
+   * has([ 'dog', 'frog', 'cat' ], 2) // true
+   * has([ 'dog', 'frog', 'cat' ], 5) // false
+   * has({ x: 123, y: 456 }, 'x') // true
+   * has({ x: 123, y: 456 }, 'z') // false
+   * ```
+   */
+  function has(collection: object, key: unknown): boolean;
+
+  /**
+   * Returns a copy of the collection with the value at key removed.
+   *
+   * A functional alternative to `collection.remove(key)` which will also work
+   * with plain Objects and Arrays as an alternative for
+   * `delete collectionCopy[key]`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { remove } = require('immutable')
+   * const originalArray = [ 'dog', 'frog', 'cat' ]
+   * remove(originalArray, 1) // [ 'dog', 'cat' ]
+   * console.log(originalArray) // [ 'dog', 'frog', 'cat' ]
+   * const originalObject = { x: 123, y: 456 }
+   * remove(originalObject, 'x') // { y: 456 }
+   * console.log(originalObject) // { x: 123, y: 456 }
+   * ```
+   */
+  function remove<K, C extends Collection<K, unknown>>(
+    collection: C,
+    key: K
+  ): C;
+  function remove<
+    TProps extends object,
+    C extends Record<TProps>,
+    K extends keyof TProps
+  >(collection: C, key: K): C;
+  function remove<C extends Array<unknown>>(collection: C, key: number): C;
+  function remove<C, K extends keyof C>(collection: C, key: K): C;
+  function remove<C extends { [key: string]: unknown }, K extends keyof C>(
+    collection: C,
+    key: K
+  ): C;
+
+  /**
+   * Returns a copy of the collection with the value at key set to the provided
+   * value.
+   *
+   * A functional alternative to `collection.set(key, value)` which will also
+   * work with plain Objects and Arrays as an alternative for
+   * `collectionCopy[key] = value`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { set } = require('immutable')
+   * const originalArray = [ 'dog', 'frog', 'cat' ]
+   * set(originalArray, 1, 'cow') // [ 'dog', 'cow', 'cat' ]
+   * console.log(originalArray) // [ 'dog', 'frog', 'cat' ]
+   * const originalObject = { x: 123, y: 456 }
+   * set(originalObject, 'x', 789) // { x: 789, y: 456 }
+   * console.log(originalObject) // { x: 123, y: 456 }
+   * ```
+   */
+  function set<K, V, C extends Collection<K, V>>(
+    collection: C,
+    key: K,
+    value: V
+  ): C;
+  function set<
+    TProps extends object,
+    C extends Record<TProps>,
+    K extends keyof TProps
+  >(record: C, key: K, value: TProps[K]): C;
+  function set<V, C extends Array<V>>(collection: C, key: number, value: V): C;
+  function set<C, K extends keyof C>(object: C, key: K, value: C[K]): C;
+  function set<V, C extends { [key: string]: V }>(
+    collection: C,
+    key: string,
+    value: V
+  ): C;
+
+  /**
+   * Returns a copy of the collection with the value at key set to the result of
+   * providing the existing value to the updating function.
+   *
+   * A functional alternative to `collection.update(key, fn)` which will also
+   * work with plain Objects and Arrays as an alternative for
+   * `collectionCopy[key] = fn(collection[key])`.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { update } = require('immutable')
+   * const originalArray = [ 'dog', 'frog', 'cat' ]
+   * update(originalArray, 1, val => val.toUpperCase()) // [ 'dog', 'FROG', 'cat' ]
+   * console.log(originalArray) // [ 'dog', 'frog', 'cat' ]
+   * const originalObject = { x: 123, y: 456 }
+   * update(originalObject, 'x', val => val * 6) // { x: 738, y: 456 }
+   * console.log(originalObject) // { x: 123, y: 456 }
+   * ```
+   */
+  function update<K, V, C extends Collection<K, V>>(
+    collection: C,
+    key: K,
+    updater: (value: V | undefined) => V | undefined
+  ): C;
+  function update<K, V, C extends Collection<K, V>, NSV>(
+    collection: C,
+    key: K,
+    notSetValue: NSV,
+    updater: (value: V | NSV) => V
+  ): C;
+  function update<
+    TProps extends object,
+    C extends Record<TProps>,
+    K extends keyof TProps
+  >(record: C, key: K, updater: (value: TProps[K]) => TProps[K]): C;
+  function update<
+    TProps extends object,
+    C extends Record<TProps>,
+    K extends keyof TProps,
+    NSV
+  >(
+    record: C,
+    key: K,
+    notSetValue: NSV,
+    updater: (value: TProps[K] | NSV) => TProps[K]
+  ): C;
+  function update<V>(
+    collection: Array<V>,
+    key: number,
+    updater: (value: V | undefined) => V | undefined
+  ): Array<V>;
+  function update<V, NSV>(
+    collection: Array<V>,
+    key: number,
+    notSetValue: NSV,
+    updater: (value: V | NSV) => V
+  ): Array<V>;
+  function update<C, K extends keyof C>(
+    object: C,
+    key: K,
+    updater: (value: C[K]) => C[K]
+  ): C;
+  function update<C, K extends keyof C, NSV>(
+    object: C,
+    key: K,
+    notSetValue: NSV,
+    updater: (value: C[K] | NSV) => C[K]
+  ): C;
+  function update<V, C extends { [key: string]: V }, K extends keyof C>(
+    collection: C,
+    key: K,
+    updater: (value: V) => V
+  ): { [key: string]: V };
+  function update<V, C extends { [key: string]: V }, K extends keyof C, NSV>(
+    collection: C,
+    key: K,
+    notSetValue: NSV,
+    updater: (value: V | NSV) => V
+  ): { [key: string]: V };
+
+  /**
+   * Returns the value at the provided key path starting at the provided
+   * collection, or notSetValue if the key path is not defined.
+   *
+   * A functional alternative to `collection.getIn(keypath)` which will also
+   * work with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { getIn } = require('immutable')
+   * getIn({ x: { y: { z: 123 }}}, ['x', 'y', 'z']) // 123
+   * getIn({ x: { y: { z: 123 }}}, ['x', 'q', 'p'], 'ifNotSet') // 'ifNotSet'
+   * ```
+   */
+  function getIn(
+    collection: unknown,
+    keyPath: Iterable<unknown>,
+    notSetValue?: unknown
+  ): unknown;
+
+  /**
+   * Returns true if the key path is defined in the provided collection.
+   *
+   * A functional alternative to `collection.hasIn(keypath)` which will also
+   * work with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { hasIn } = require('immutable')
+   * hasIn({ x: { y: { z: 123 }}}, ['x', 'y', 'z']) // true
+   * hasIn({ x: { y: { z: 123 }}}, ['x', 'q', 'p']) // false
+   * ```
+   */
+  function hasIn(collection: unknown, keyPath: Iterable<unknown>): boolean;
+
+  /**
+   * Returns a copy of the collection with the value at the key path removed.
+   *
+   * A functional alternative to `collection.removeIn(keypath)` which will also
+   * work with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { removeIn } = require('immutable')
+   * const original = { x: { y: { z: 123 }}}
+   * removeIn(original, ['x', 'y', 'z']) // { x: { y: {}}}
+   * console.log(original) // { x: { y: { z: 123 }}}
+   * ```
+   */
+  function removeIn<C>(collection: C, keyPath: Iterable<unknown>): C;
+
+  /**
+   * Returns a copy of the collection with the value at the key path set to the
+   * provided value.
+   *
+   * A functional alternative to `collection.setIn(keypath)` which will also
+   * work with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { setIn } = require('immutable')
+   * const original = { x: { y: { z: 123 }}}
+   * setIn(original, ['x', 'y', 'z'], 456) // { x: { y: { z: 456 }}}
+   * console.log(original) // { x: { y: { z: 123 }}}
+   * ```
+   */
+  function setIn<C>(
+    collection: C,
+    keyPath: Iterable<unknown>,
+    value: unknown
+  ): C;
+
+  /**
+   * Returns a copy of the collection with the value at key path set to the
+   * result of providing the existing value to the updating function.
+   *
+   * A functional alternative to `collection.updateIn(keypath)` which will also
+   * work with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { updateIn } = require('immutable')
+   * const original = { x: { y: { z: 123 }}}
+   * updateIn(original, ['x', 'y', 'z'], val => val * 6) // { x: { y: { z: 738 }}}
+   * console.log(original) // { x: { y: { z: 123 }}}
+   * ```
+   */
+  function updateIn<C>(
+    collection: C,
+    keyPath: Iterable<unknown>,
+    updater: (value: unknown) => unknown
+  ): C;
+  function updateIn<C>(
+    collection: C,
+    keyPath: Iterable<unknown>,
+    notSetValue: unknown,
+    updater: (value: unknown) => unknown
+  ): C;
+
+  /**
+   * Returns a copy of the collection with the remaining collections merged in.
+   *
+   * A functional alternative to `collection.merge()` which will also work with
+   * plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { merge } = require('immutable')
+   * const original = { x: 123, y: 456 }
+   * merge(original, { y: 789, z: 'abc' }) // { x: 123, y: 789, z: 'abc' }
+   * console.log(original) // { x: 123, y: 456 }
+   * ```
+   */
+  function merge<C>(
+    collection: C,
+    ...collections: Array<
+      | Iterable<unknown>
+      | Iterable<[unknown, unknown]>
+      | { [key: string]: unknown }
+    >
+  ): C;
+
+  /**
+   * Returns a copy of the collection with the remaining collections merged in,
+   * calling the `merger` function whenever an existing value is encountered.
+   *
+   * A functional alternative to `collection.mergeWith()` which will also work
+   * with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { mergeWith } = require('immutable')
+   * const original = { x: 123, y: 456 }
+   * mergeWith(
+   *   (oldVal, newVal) => oldVal + newVal,
+   *   original,
+   *   { y: 789, z: 'abc' }
+   * ) // { x: 123, y: 1245, z: 'abc' }
+   * console.log(original) // { x: 123, y: 456 }
+   * ```
+   */
+  function mergeWith<C>(
+    merger: (oldVal: unknown, newVal: unknown, key: unknown) => unknown,
+    collection: C,
+    ...collections: Array<
+      | Iterable<unknown>
+      | Iterable<[unknown, unknown]>
+      | { [key: string]: unknown }
+    >
+  ): C;
+
+  /**
+   * Like `merge()`, but when two compatible collections are encountered with
+   * the same key, it merges them as well, recursing deeply through the nested
+   * data. Two collections are considered to be compatible (and thus will be
+   * merged together) if they both fall into one of three categories: keyed
+   * (e.g., `Map`s, `Record`s, and objects), indexed (e.g., `List`s and
+   * arrays), or set-like (e.g., `Set`s). If they fall into separate
+   * categories, `mergeDeep` will replace the existing collection with the
+   * collection being merged in. This behavior can be customized by using
+   * `mergeDeepWith()`.
+   *
+   * Note: Indexed and set-like collections are merged using
+   * `concat()`/`union()` and therefore do not recurse.
+   *
+   * A functional alternative to `collection.mergeDeep()` which will also work
+   * with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { mergeDeep } = require('immutable')
+   * const original = { x: { y: 123 }}
+   * mergeDeep(original, { x: { z: 456 }}) // { x: { y: 123, z: 456 }}
+   * console.log(original) // { x: { y: 123 }}
+   * ```
+   */
+  function mergeDeep<C>(
+    collection: C,
+    ...collections: Array<
+      | Iterable<unknown>
+      | Iterable<[unknown, unknown]>
+      | { [key: string]: unknown }
+    >
+  ): C;
+
+  /**
+   * Like `mergeDeep()`, but when two non-collections or incompatible
+   * collections are encountered at the same key, it uses the `merger` function
+   * to determine the resulting value. Collections are considered incompatible
+   * if they fall into separate categories between keyed, indexed, and set-like.
+   *
+   * A functional alternative to `collection.mergeDeepWith()` which will also
+   * work with plain Objects and Arrays.
+   *
+   * <!-- runkit:activate -->
+   * ```js
+   * const { mergeDeepWith } = require('immutable')
+   * const original = { x: { y: 123 }}
+   * mergeDeepWith(
+   *   (oldVal, newVal) => oldVal + newVal,
+   *   original,
+   *   { x: { y: 456 }}
+   * ) // { x: { y: 579 }}
+   * console.log(original) // { x: { y: 123 }}
+   * ```
+   */
+  function mergeDeepWith<C>(
+    merger: (oldVal: unknown, newVal: unknown, key: unknown) => unknown,
+    collection: C,
+    ...collections: Array<
+      | Iterable<unknown>
+      | Iterable<[unknown, unknown]>
+      | { [key: string]: unknown }
+    >
+  ): C;
+}
+
+/**
+ * Defines the main export of the immutable module to be the Immutable namespace
+ * This supports many common module import patterns:
+ *
+ *     const Immutable = require("immutable");
+ *     const { List } = require("immutable");
+ *     import Immutable from "immutable";
+ *     import * as Immutable from "immutable";
+ *     import { List } from "immutable";
+ *
+ */
+export = Immutable;
+
+/**
+ * A global "Immutable" namespace used by UMD modules which allows the use of
+ * the full Immutable API.
+ *
+ * If using Immutable as an imported module, prefer using:
+ *
+ *     import Immutable from 'immutable'
+ *
+ */
+export as namespace Immutable;
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.es.js b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.es.js
new file mode 100644
index 00000000..2c6730e5
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.es.js
@@ -0,0 +1,5988 @@
+/**
+ * MIT License
+ * 
+ * Copyright (c) 2014-present, Lee Byron and other contributors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+var DELETE = 'delete';
+
+// Constants describing the size of trie nodes.
+var SHIFT = 5; // Resulted in best performance after ______?
+var SIZE = 1 << SHIFT;
+var MASK = SIZE - 1;
+
+// A consistent shared value representing "not set" which equals nothing other
+// than itself, and nothing that could be provided externally.
+var NOT_SET = {};
+
+// Boolean references, Rough equivalent of `bool &`.
+function MakeRef() {
+  return { value: false };
+}
+
+function SetRef(ref) {
+  if (ref) {
+    ref.value = true;
+  }
+}
+
+// A function which returns a value representing an "owner" for transient writes
+// to tries. The return value will only ever equal itself, and will not equal
+// the return of any subsequent call of this function.
+function OwnerID() {}
+
+function ensureSize(iter) {
+  if (iter.size === undefined) {
+    iter.size = iter.__iterate(returnTrue);
+  }
+  return iter.size;
+}
+
+function wrapIndex(iter, index) {
+  // This implements "is array index" which the ECMAString spec defines as:
+  //
+  //     A String property name P is an array index if and only if
+  //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
+  //     to 2^32−1.
+  //
+  // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
+  if (typeof index !== 'number') {
+    var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
+    if ('' + uint32Index !== index || uint32Index === 4294967295) {
+      return NaN;
+    }
+    index = uint32Index;
+  }
+  return index < 0 ? ensureSize(iter) + index : index;
+}
+
+function returnTrue() {
+  return true;
+}
+
+function wholeSlice(begin, end, size) {
+  return (
+    ((begin === 0 && !isNeg(begin)) ||
+      (size !== undefined && begin <= -size)) &&
+    (end === undefined || (size !== undefined && end >= size))
+  );
+}
+
+function resolveBegin(begin, size) {
+  return resolveIndex(begin, size, 0);
+}
+
+function resolveEnd(end, size) {
+  return resolveIndex(end, size, size);
+}
+
+function resolveIndex(index, size, defaultIndex) {
+  // Sanitize indices using this shorthand for ToInt32(argument)
+  // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
+  return index === undefined
+    ? defaultIndex
+    : isNeg(index)
+    ? size === Infinity
+      ? size
+      : Math.max(0, size + index) | 0
+    : size === undefined || size === index
+    ? index
+    : Math.min(size, index) | 0;
+}
+
+function isNeg(value) {
+  // Account for -0 which is negative, but not less than 0.
+  return value < 0 || (value === 0 && 1 / value === -Infinity);
+}
+
+var IS_COLLECTION_SYMBOL = '@@__IMMUTABLE_ITERABLE__@@';
+
+function isCollection(maybeCollection) {
+  return Boolean(maybeCollection && maybeCollection[IS_COLLECTION_SYMBOL]);
+}
+
+var IS_KEYED_SYMBOL = '@@__IMMUTABLE_KEYED__@@';
+
+function isKeyed(maybeKeyed) {
+  return Boolean(maybeKeyed && maybeKeyed[IS_KEYED_SYMBOL]);
+}
+
+var IS_INDEXED_SYMBOL = '@@__IMMUTABLE_INDEXED__@@';
+
+function isIndexed(maybeIndexed) {
+  return Boolean(maybeIndexed && maybeIndexed[IS_INDEXED_SYMBOL]);
+}
+
+function isAssociative(maybeAssociative) {
+  return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
+}
+
+var Collection = function Collection(value) {
+  // eslint-disable-next-line no-constructor-return
+  return isCollection(value) ? value : Seq(value);
+};
+
+var KeyedCollection = /*@__PURE__*/(function (Collection) {
+  function KeyedCollection(value) {
+    // eslint-disable-next-line no-constructor-return
+    return isKeyed(value) ? value : KeyedSeq(value);
+  }
+
+  if ( Collection ) KeyedCollection.__proto__ = Collection;
+  KeyedCollection.prototype = Object.create( Collection && Collection.prototype );
+  KeyedCollection.prototype.constructor = KeyedCollection;
+
+  return KeyedCollection;
+}(Collection));
+
+var IndexedCollection = /*@__PURE__*/(function (Collection) {
+  function IndexedCollection(value) {
+    // eslint-disable-next-line no-constructor-return
+    return isIndexed(value) ? value : IndexedSeq(value);
+  }
+
+  if ( Collection ) IndexedCollection.__proto__ = Collection;
+  IndexedCollection.prototype = Object.create( Collection && Collection.prototype );
+  IndexedCollection.prototype.constructor = IndexedCollection;
+
+  return IndexedCollection;
+}(Collection));
+
+var SetCollection = /*@__PURE__*/(function (Collection) {
+  function SetCollection(value) {
+    // eslint-disable-next-line no-constructor-return
+    return isCollection(value) && !isAssociative(value) ? value : SetSeq(value);
+  }
+
+  if ( Collection ) SetCollection.__proto__ = Collection;
+  SetCollection.prototype = Object.create( Collection && Collection.prototype );
+  SetCollection.prototype.constructor = SetCollection;
+
+  return SetCollection;
+}(Collection));
+
+Collection.Keyed = KeyedCollection;
+Collection.Indexed = IndexedCollection;
+Collection.Set = SetCollection;
+
+var IS_SEQ_SYMBOL = '@@__IMMUTABLE_SEQ__@@';
+
+function isSeq(maybeSeq) {
+  return Boolean(maybeSeq && maybeSeq[IS_SEQ_SYMBOL]);
+}
+
+var IS_RECORD_SYMBOL = '@@__IMMUTABLE_RECORD__@@';
+
+function isRecord(maybeRecord) {
+  return Boolean(maybeRecord && maybeRecord[IS_RECORD_SYMBOL]);
+}
+
+function isImmutable(maybeImmutable) {
+  return isCollection(maybeImmutable) || isRecord(maybeImmutable);
+}
+
+var IS_ORDERED_SYMBOL = '@@__IMMUTABLE_ORDERED__@@';
+
+function isOrdered(maybeOrdered) {
+  return Boolean(maybeOrdered && maybeOrdered[IS_ORDERED_SYMBOL]);
+}
+
+var ITERATE_KEYS = 0;
+var ITERATE_VALUES = 1;
+var ITERATE_ENTRIES = 2;
+
+var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+var FAUX_ITERATOR_SYMBOL = '@@iterator';
+
+var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;
+
+var Iterator = function Iterator(next) {
+  this.next = next;
+};
+
+Iterator.prototype.toString = function toString () {
+  return '[Iterator]';
+};
+
+Iterator.KEYS = ITERATE_KEYS;
+Iterator.VALUES = ITERATE_VALUES;
+Iterator.ENTRIES = ITERATE_ENTRIES;
+
+Iterator.prototype.inspect = Iterator.prototype.toSource = function () {
+  return this.toString();
+};
+Iterator.prototype[ITERATOR_SYMBOL] = function () {
+  return this;
+};
+
+function iteratorValue(type, k, v, iteratorResult) {
+  var value = type === 0 ? k : type === 1 ? v : [k, v];
+  iteratorResult
+    ? (iteratorResult.value = value)
+    : (iteratorResult = {
+        value: value,
+        done: false,
+      });
+  return iteratorResult;
+}
+
+function iteratorDone() {
+  return { value: undefined, done: true };
+}
+
+function hasIterator(maybeIterable) {
+  if (Array.isArray(maybeIterable)) {
+    // IE11 trick as it does not support `Symbol.iterator`
+    return true;
+  }
+
+  return !!getIteratorFn(maybeIterable);
+}
+
+function isIterator(maybeIterator) {
+  return maybeIterator && typeof maybeIterator.next === 'function';
+}
+
+function getIterator(iterable) {
+  var iteratorFn = getIteratorFn(iterable);
+  return iteratorFn && iteratorFn.call(iterable);
+}
+
+function getIteratorFn(iterable) {
+  var iteratorFn =
+    iterable &&
+    ((REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
+      iterable[FAUX_ITERATOR_SYMBOL]);
+  if (typeof iteratorFn === 'function') {
+    return iteratorFn;
+  }
+}
+
+function isEntriesIterable(maybeIterable) {
+  var iteratorFn = getIteratorFn(maybeIterable);
+  return iteratorFn && iteratorFn === maybeIterable.entries;
+}
+
+function isKeysIterable(maybeIterable) {
+  var iteratorFn = getIteratorFn(maybeIterable);
+  return iteratorFn && iteratorFn === maybeIterable.keys;
+}
+
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+function isArrayLike(value) {
+  if (Array.isArray(value) || typeof value === 'string') {
+    return true;
+  }
+
+  return (
+    value &&
+    typeof value === 'object' &&
+    Number.isInteger(value.length) &&
+    value.length >= 0 &&
+    (value.length === 0
+      ? // Only {length: 0} is considered Array-like.
+        Object.keys(value).length === 1
+      : // An object is only Array-like if it has a property where the last value
+        // in the array-like may be found (which could be undefined).
+        value.hasOwnProperty(value.length - 1))
+  );
+}
+
+var Seq = /*@__PURE__*/(function (Collection) {
+  function Seq(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptySequence()
+      : isImmutable(value)
+      ? value.toSeq()
+      : seqFromValue(value);
+  }
+
+  if ( Collection ) Seq.__proto__ = Collection;
+  Seq.prototype = Object.create( Collection && Collection.prototype );
+  Seq.prototype.constructor = Seq;
+
+  Seq.prototype.toSeq = function toSeq () {
+    return this;
+  };
+
+  Seq.prototype.toString = function toString () {
+    return this.__toString('Seq {', '}');
+  };
+
+  Seq.prototype.cacheResult = function cacheResult () {
+    if (!this._cache && this.__iterateUncached) {
+      this._cache = this.entrySeq().toArray();
+      this.size = this._cache.length;
+    }
+    return this;
+  };
+
+  // abstract __iterateUncached(fn, reverse)
+
+  Seq.prototype.__iterate = function __iterate (fn, reverse) {
+    var cache = this._cache;
+    if (cache) {
+      var size = cache.length;
+      var i = 0;
+      while (i !== size) {
+        var entry = cache[reverse ? size - ++i : i++];
+        if (fn(entry[1], entry[0], this) === false) {
+          break;
+        }
+      }
+      return i;
+    }
+    return this.__iterateUncached(fn, reverse);
+  };
+
+  // abstract __iteratorUncached(type, reverse)
+
+  Seq.prototype.__iterator = function __iterator (type, reverse) {
+    var cache = this._cache;
+    if (cache) {
+      var size = cache.length;
+      var i = 0;
+      return new Iterator(function () {
+        if (i === size) {
+          return iteratorDone();
+        }
+        var entry = cache[reverse ? size - ++i : i++];
+        return iteratorValue(type, entry[0], entry[1]);
+      });
+    }
+    return this.__iteratorUncached(type, reverse);
+  };
+
+  return Seq;
+}(Collection));
+
+var KeyedSeq = /*@__PURE__*/(function (Seq) {
+  function KeyedSeq(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptySequence().toKeyedSeq()
+      : isCollection(value)
+      ? isKeyed(value)
+        ? value.toSeq()
+        : value.fromEntrySeq()
+      : isRecord(value)
+      ? value.toSeq()
+      : keyedSeqFromValue(value);
+  }
+
+  if ( Seq ) KeyedSeq.__proto__ = Seq;
+  KeyedSeq.prototype = Object.create( Seq && Seq.prototype );
+  KeyedSeq.prototype.constructor = KeyedSeq;
+
+  KeyedSeq.prototype.toKeyedSeq = function toKeyedSeq () {
+    return this;
+  };
+
+  return KeyedSeq;
+}(Seq));
+
+var IndexedSeq = /*@__PURE__*/(function (Seq) {
+  function IndexedSeq(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptySequence()
+      : isCollection(value)
+      ? isKeyed(value)
+        ? value.entrySeq()
+        : value.toIndexedSeq()
+      : isRecord(value)
+      ? value.toSeq().entrySeq()
+      : indexedSeqFromValue(value);
+  }
+
+  if ( Seq ) IndexedSeq.__proto__ = Seq;
+  IndexedSeq.prototype = Object.create( Seq && Seq.prototype );
+  IndexedSeq.prototype.constructor = IndexedSeq;
+
+  IndexedSeq.of = function of (/*...values*/) {
+    return IndexedSeq(arguments);
+  };
+
+  IndexedSeq.prototype.toIndexedSeq = function toIndexedSeq () {
+    return this;
+  };
+
+  IndexedSeq.prototype.toString = function toString () {
+    return this.__toString('Seq [', ']');
+  };
+
+  return IndexedSeq;
+}(Seq));
+
+var SetSeq = /*@__PURE__*/(function (Seq) {
+  function SetSeq(value) {
+    // eslint-disable-next-line no-constructor-return
+    return (
+      isCollection(value) && !isAssociative(value) ? value : IndexedSeq(value)
+    ).toSetSeq();
+  }
+
+  if ( Seq ) SetSeq.__proto__ = Seq;
+  SetSeq.prototype = Object.create( Seq && Seq.prototype );
+  SetSeq.prototype.constructor = SetSeq;
+
+  SetSeq.of = function of (/*...values*/) {
+    return SetSeq(arguments);
+  };
+
+  SetSeq.prototype.toSetSeq = function toSetSeq () {
+    return this;
+  };
+
+  return SetSeq;
+}(Seq));
+
+Seq.isSeq = isSeq;
+Seq.Keyed = KeyedSeq;
+Seq.Set = SetSeq;
+Seq.Indexed = IndexedSeq;
+
+Seq.prototype[IS_SEQ_SYMBOL] = true;
+
+// #pragma Root Sequences
+
+var ArraySeq = /*@__PURE__*/(function (IndexedSeq) {
+  function ArraySeq(array) {
+    this._array = array;
+    this.size = array.length;
+  }
+
+  if ( IndexedSeq ) ArraySeq.__proto__ = IndexedSeq;
+  ArraySeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+  ArraySeq.prototype.constructor = ArraySeq;
+
+  ArraySeq.prototype.get = function get (index, notSetValue) {
+    return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
+  };
+
+  ArraySeq.prototype.__iterate = function __iterate (fn, reverse) {
+    var array = this._array;
+    var size = array.length;
+    var i = 0;
+    while (i !== size) {
+      var ii = reverse ? size - ++i : i++;
+      if (fn(array[ii], ii, this) === false) {
+        break;
+      }
+    }
+    return i;
+  };
+
+  ArraySeq.prototype.__iterator = function __iterator (type, reverse) {
+    var array = this._array;
+    var size = array.length;
+    var i = 0;
+    return new Iterator(function () {
+      if (i === size) {
+        return iteratorDone();
+      }
+      var ii = reverse ? size - ++i : i++;
+      return iteratorValue(type, ii, array[ii]);
+    });
+  };
+
+  return ArraySeq;
+}(IndexedSeq));
+
+var ObjectSeq = /*@__PURE__*/(function (KeyedSeq) {
+  function ObjectSeq(object) {
+    var keys = Object.keys(object).concat(
+      Object.getOwnPropertySymbols ? Object.getOwnPropertySymbols(object) : []
+    );
+    this._object = object;
+    this._keys = keys;
+    this.size = keys.length;
+  }
+
+  if ( KeyedSeq ) ObjectSeq.__proto__ = KeyedSeq;
+  ObjectSeq.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
+  ObjectSeq.prototype.constructor = ObjectSeq;
+
+  ObjectSeq.prototype.get = function get (key, notSetValue) {
+    if (notSetValue !== undefined && !this.has(key)) {
+      return notSetValue;
+    }
+    return this._object[key];
+  };
+
+  ObjectSeq.prototype.has = function has (key) {
+    return hasOwnProperty.call(this._object, key);
+  };
+
+  ObjectSeq.prototype.__iterate = function __iterate (fn, reverse) {
+    var object = this._object;
+    var keys = this._keys;
+    var size = keys.length;
+    var i = 0;
+    while (i !== size) {
+      var key = keys[reverse ? size - ++i : i++];
+      if (fn(object[key], key, this) === false) {
+        break;
+      }
+    }
+    return i;
+  };
+
+  ObjectSeq.prototype.__iterator = function __iterator (type, reverse) {
+    var object = this._object;
+    var keys = this._keys;
+    var size = keys.length;
+    var i = 0;
+    return new Iterator(function () {
+      if (i === size) {
+        return iteratorDone();
+      }
+      var key = keys[reverse ? size - ++i : i++];
+      return iteratorValue(type, key, object[key]);
+    });
+  };
+
+  return ObjectSeq;
+}(KeyedSeq));
+ObjectSeq.prototype[IS_ORDERED_SYMBOL] = true;
+
+var CollectionSeq = /*@__PURE__*/(function (IndexedSeq) {
+  function CollectionSeq(collection) {
+    this._collection = collection;
+    this.size = collection.length || collection.size;
+  }
+
+  if ( IndexedSeq ) CollectionSeq.__proto__ = IndexedSeq;
+  CollectionSeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+  CollectionSeq.prototype.constructor = CollectionSeq;
+
+  CollectionSeq.prototype.__iterateUncached = function __iterateUncached (fn, reverse) {
+    if (reverse) {
+      return this.cacheResult().__iterate(fn, reverse);
+    }
+    var collection = this._collection;
+    var iterator = getIterator(collection);
+    var iterations = 0;
+    if (isIterator(iterator)) {
+      var step;
+      while (!(step = iterator.next()).done) {
+        if (fn(step.value, iterations++, this) === false) {
+          break;
+        }
+      }
+    }
+    return iterations;
+  };
+
+  CollectionSeq.prototype.__iteratorUncached = function __iteratorUncached (type, reverse) {
+    if (reverse) {
+      return this.cacheResult().__iterator(type, reverse);
+    }
+    var collection = this._collection;
+    var iterator = getIterator(collection);
+    if (!isIterator(iterator)) {
+      return new Iterator(iteratorDone);
+    }
+    var iterations = 0;
+    return new Iterator(function () {
+      var step = iterator.next();
+      return step.done ? step : iteratorValue(type, iterations++, step.value);
+    });
+  };
+
+  return CollectionSeq;
+}(IndexedSeq));
+
+// # pragma Helper functions
+
+var EMPTY_SEQ;
+
+function emptySequence() {
+  return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
+}
+
+function keyedSeqFromValue(value) {
+  var seq = maybeIndexedSeqFromValue(value);
+  if (seq) {
+    return seq.fromEntrySeq();
+  }
+  if (typeof value === 'object') {
+    return new ObjectSeq(value);
+  }
+  throw new TypeError(
+    'Expected Array or collection object of [k, v] entries, or keyed object: ' +
+      value
+  );
+}
+
+function indexedSeqFromValue(value) {
+  var seq = maybeIndexedSeqFromValue(value);
+  if (seq) {
+    return seq;
+  }
+  throw new TypeError(
+    'Expected Array or collection object of values: ' + value
+  );
+}
+
+function seqFromValue(value) {
+  var seq = maybeIndexedSeqFromValue(value);
+  if (seq) {
+    return isEntriesIterable(value)
+      ? seq.fromEntrySeq()
+      : isKeysIterable(value)
+      ? seq.toSetSeq()
+      : seq;
+  }
+  if (typeof value === 'object') {
+    return new ObjectSeq(value);
+  }
+  throw new TypeError(
+    'Expected Array or collection object of values, or keyed object: ' + value
+  );
+}
+
+function maybeIndexedSeqFromValue(value) {
+  return isArrayLike(value)
+    ? new ArraySeq(value)
+    : hasIterator(value)
+    ? new CollectionSeq(value)
+    : undefined;
+}
+
+var IS_MAP_SYMBOL = '@@__IMMUTABLE_MAP__@@';
+
+function isMap(maybeMap) {
+  return Boolean(maybeMap && maybeMap[IS_MAP_SYMBOL]);
+}
+
+function isOrderedMap(maybeOrderedMap) {
+  return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);
+}
+
+function isValueObject(maybeValue) {
+  return Boolean(
+    maybeValue &&
+      typeof maybeValue.equals === 'function' &&
+      typeof maybeValue.hashCode === 'function'
+  );
+}
+
+/**
+ * An extension of the "same-value" algorithm as [described for use by ES6 Map
+ * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
+ *
+ * NaN is considered the same as NaN, however -0 and 0 are considered the same
+ * value, which is different from the algorithm described by
+ * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
+ *
+ * This is extended further to allow Objects to describe the values they
+ * represent, by way of `valueOf` or `equals` (and `hashCode`).
+ *
+ * Note: because of this extension, the key equality of Immutable.Map and the
+ * value equality of Immutable.Set will differ from ES6 Map and Set.
+ *
+ * ### Defining custom values
+ *
+ * The easiest way to describe the value an object represents is by implementing
+ * `valueOf`. For example, `Date` represents a value by returning a unix
+ * timestamp for `valueOf`:
+ *
+ *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
+ *     var date2 = new Date(1234567890000);
+ *     date1.valueOf(); // 1234567890000
+ *     assert( date1 !== date2 );
+ *     assert( Immutable.is( date1, date2 ) );
+ *
+ * Note: overriding `valueOf` may have other implications if you use this object
+ * where JavaScript expects a primitive, such as implicit string coercion.
+ *
+ * For more complex types, especially collections, implementing `valueOf` may
+ * not be performant. An alternative is to implement `equals` and `hashCode`.
+ *
+ * `equals` takes another object, presumably of similar type, and returns true
+ * if it is equal. Equality is symmetrical, so the same result should be
+ * returned if this and the argument are flipped.
+ *
+ *     assert( a.equals(b) === b.equals(a) );
+ *
+ * `hashCode` returns a 32bit integer number representing the object which will
+ * be used to determine how to store the value object in a Map or Set. You must
+ * provide both or neither methods, one must not exist without the other.
+ *
+ * Also, an important relationship between these methods must be upheld: if two
+ * values are equal, they *must* return the same hashCode. If the values are not
+ * equal, they might have the same hashCode; this is called a hash collision,
+ * and while undesirable for performance reasons, it is acceptable.
+ *
+ *     if (a.equals(b)) {
+ *       assert( a.hashCode() === b.hashCode() );
+ *     }
+ *
+ * All Immutable collections are Value Objects: they implement `equals()`
+ * and `hashCode()`.
+ */
+function is(valueA, valueB) {
+  if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
+    return true;
+  }
+  if (!valueA || !valueB) {
+    return false;
+  }
+  if (
+    typeof valueA.valueOf === 'function' &&
+    typeof valueB.valueOf === 'function'
+  ) {
+    valueA = valueA.valueOf();
+    valueB = valueB.valueOf();
+    if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
+      return true;
+    }
+    if (!valueA || !valueB) {
+      return false;
+    }
+  }
+  return !!(
+    isValueObject(valueA) &&
+    isValueObject(valueB) &&
+    valueA.equals(valueB)
+  );
+}
+
+var imul =
+  typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2
+    ? Math.imul
+    : function imul(a, b) {
+        a |= 0; // int
+        b |= 0; // int
+        var c = a & 0xffff;
+        var d = b & 0xffff;
+        // Shift by 0 fixes the sign on the high part.
+        return (c * d + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0)) | 0; // int
+      };
+
+// v8 has an optimization for storing 31-bit signed numbers.
+// Values which have either 00 or 11 as the high order bits qualify.
+// This function drops the highest order bit in a signed number, maintaining
+// the sign bit.
+function smi(i32) {
+  return ((i32 >>> 1) & 0x40000000) | (i32 & 0xbfffffff);
+}
+
+var defaultValueOf = Object.prototype.valueOf;
+
+function hash(o) {
+  if (o == null) {
+    return hashNullish(o);
+  }
+
+  if (typeof o.hashCode === 'function') {
+    // Drop any high bits from accidentally long hash codes.
+    return smi(o.hashCode(o));
+  }
+
+  var v = valueOf(o);
+
+  if (v == null) {
+    return hashNullish(v);
+  }
+
+  switch (typeof v) {
+    case 'boolean':
+      // The hash values for built-in constants are a 1 value for each 5-byte
+      // shift region expect for the first, which encodes the value. This
+      // reduces the odds of a hash collision for these common values.
+      return v ? 0x42108421 : 0x42108420;
+    case 'number':
+      return hashNumber(v);
+    case 'string':
+      return v.length > STRING_HASH_CACHE_MIN_STRLEN
+        ? cachedHashString(v)
+        : hashString(v);
+    case 'object':
+    case 'function':
+      return hashJSObj(v);
+    case 'symbol':
+      return hashSymbol(v);
+    default:
+      if (typeof v.toString === 'function') {
+        return hashString(v.toString());
+      }
+      throw new Error('Value type ' + typeof v + ' cannot be hashed.');
+  }
+}
+
+function hashNullish(nullish) {
+  return nullish === null ? 0x42108422 : /* undefined */ 0x42108423;
+}
+
+// Compress arbitrarily large numbers into smi hashes.
+function hashNumber(n) {
+  if (n !== n || n === Infinity) {
+    return 0;
+  }
+  var hash = n | 0;
+  if (hash !== n) {
+    hash ^= n * 0xffffffff;
+  }
+  while (n > 0xffffffff) {
+    n /= 0xffffffff;
+    hash ^= n;
+  }
+  return smi(hash);
+}
+
+function cachedHashString(string) {
+  var hashed = stringHashCache[string];
+  if (hashed === undefined) {
+    hashed = hashString(string);
+    if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
+      STRING_HASH_CACHE_SIZE = 0;
+      stringHashCache = {};
+    }
+    STRING_HASH_CACHE_SIZE++;
+    stringHashCache[string] = hashed;
+  }
+  return hashed;
+}
+
+// http://jsperf.com/hashing-strings
+function hashString(string) {
+  // This is the hash from JVM
+  // The hash code for a string is computed as
+  // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
+  // where s[i] is the ith character of the string and n is the length of
+  // the string. We "mod" the result to make it between 0 (inclusive) and 2^31
+  // (exclusive) by dropping high bits.
+  var hashed = 0;
+  for (var ii = 0; ii < string.length; ii++) {
+    hashed = (31 * hashed + string.charCodeAt(ii)) | 0;
+  }
+  return smi(hashed);
+}
+
+function hashSymbol(sym) {
+  var hashed = symbolMap[sym];
+  if (hashed !== undefined) {
+    return hashed;
+  }
+
+  hashed = nextHash();
+
+  symbolMap[sym] = hashed;
+
+  return hashed;
+}
+
+function hashJSObj(obj) {
+  var hashed;
+  if (usingWeakMap) {
+    hashed = weakMap.get(obj);
+    if (hashed !== undefined) {
+      return hashed;
+    }
+  }
+
+  hashed = obj[UID_HASH_KEY];
+  if (hashed !== undefined) {
+    return hashed;
+  }
+
+  if (!canDefineProperty) {
+    hashed = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
+    if (hashed !== undefined) {
+      return hashed;
+    }
+
+    hashed = getIENodeHash(obj);
+    if (hashed !== undefined) {
+      return hashed;
+    }
+  }
+
+  hashed = nextHash();
+
+  if (usingWeakMap) {
+    weakMap.set(obj, hashed);
+  } else if (isExtensible !== undefined && isExtensible(obj) === false) {
+    throw new Error('Non-extensible objects are not allowed as keys.');
+  } else if (canDefineProperty) {
+    Object.defineProperty(obj, UID_HASH_KEY, {
+      enumerable: false,
+      configurable: false,
+      writable: false,
+      value: hashed,
+    });
+  } else if (
+    obj.propertyIsEnumerable !== undefined &&
+    obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable
+  ) {
+    // Since we can't define a non-enumerable property on the object
+    // we'll hijack one of the less-used non-enumerable properties to
+    // save our hash on it. Since this is a function it will not show up in
+    // `JSON.stringify` which is what we want.
+    obj.propertyIsEnumerable = function () {
+      return this.constructor.prototype.propertyIsEnumerable.apply(
+        this,
+        arguments
+      );
+    };
+    obj.propertyIsEnumerable[UID_HASH_KEY] = hashed;
+  } else if (obj.nodeType !== undefined) {
+    // At this point we couldn't get the IE `uniqueID` to use as a hash
+    // and we couldn't use a non-enumerable property to exploit the
+    // dontEnum bug so we simply add the `UID_HASH_KEY` on the node
+    // itself.
+    obj[UID_HASH_KEY] = hashed;
+  } else {
+    throw new Error('Unable to set a non-enumerable property on object.');
+  }
+
+  return hashed;
+}
+
+// Get references to ES5 object methods.
+var isExtensible = Object.isExtensible;
+
+// True if Object.defineProperty works as expected. IE8 fails this test.
+var canDefineProperty = (function () {
+  try {
+    Object.defineProperty({}, '@', {});
+    return true;
+  } catch (e) {
+    return false;
+  }
+})();
+
+// IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
+// and avoid memory leaks from the IE cloneNode bug.
+function getIENodeHash(node) {
+  if (node && node.nodeType > 0) {
+    switch (node.nodeType) {
+      case 1: // Element
+        return node.uniqueID;
+      case 9: // Document
+        return node.documentElement && node.documentElement.uniqueID;
+    }
+  }
+}
+
+function valueOf(obj) {
+  return obj.valueOf !== defaultValueOf && typeof obj.valueOf === 'function'
+    ? obj.valueOf(obj)
+    : obj;
+}
+
+function nextHash() {
+  var nextHash = ++_objHashUID;
+  if (_objHashUID & 0x40000000) {
+    _objHashUID = 0;
+  }
+  return nextHash;
+}
+
+// If possible, use a WeakMap.
+var usingWeakMap = typeof WeakMap === 'function';
+var weakMap;
+if (usingWeakMap) {
+  weakMap = new WeakMap();
+}
+
+var symbolMap = Object.create(null);
+
+var _objHashUID = 0;
+
+var UID_HASH_KEY = '__immutablehash__';
+if (typeof Symbol === 'function') {
+  UID_HASH_KEY = Symbol(UID_HASH_KEY);
+}
+
+var STRING_HASH_CACHE_MIN_STRLEN = 16;
+var STRING_HASH_CACHE_MAX_SIZE = 255;
+var STRING_HASH_CACHE_SIZE = 0;
+var stringHashCache = {};
+
+var ToKeyedSequence = /*@__PURE__*/(function (KeyedSeq) {
+  function ToKeyedSequence(indexed, useKeys) {
+    this._iter = indexed;
+    this._useKeys = useKeys;
+    this.size = indexed.size;
+  }
+
+  if ( KeyedSeq ) ToKeyedSequence.__proto__ = KeyedSeq;
+  ToKeyedSequence.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
+  ToKeyedSequence.prototype.constructor = ToKeyedSequence;
+
+  ToKeyedSequence.prototype.get = function get (key, notSetValue) {
+    return this._iter.get(key, notSetValue);
+  };
+
+  ToKeyedSequence.prototype.has = function has (key) {
+    return this._iter.has(key);
+  };
+
+  ToKeyedSequence.prototype.valueSeq = function valueSeq () {
+    return this._iter.valueSeq();
+  };
+
+  ToKeyedSequence.prototype.reverse = function reverse () {
+    var this$1$1 = this;
+
+    var reversedSequence = reverseFactory(this, true);
+    if (!this._useKeys) {
+      reversedSequence.valueSeq = function () { return this$1$1._iter.toSeq().reverse(); };
+    }
+    return reversedSequence;
+  };
+
+  ToKeyedSequence.prototype.map = function map (mapper, context) {
+    var this$1$1 = this;
+
+    var mappedSequence = mapFactory(this, mapper, context);
+    if (!this._useKeys) {
+      mappedSequence.valueSeq = function () { return this$1$1._iter.toSeq().map(mapper, context); };
+    }
+    return mappedSequence;
+  };
+
+  ToKeyedSequence.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    return this._iter.__iterate(function (v, k) { return fn(v, k, this$1$1); }, reverse);
+  };
+
+  ToKeyedSequence.prototype.__iterator = function __iterator (type, reverse) {
+    return this._iter.__iterator(type, reverse);
+  };
+
+  return ToKeyedSequence;
+}(KeyedSeq));
+ToKeyedSequence.prototype[IS_ORDERED_SYMBOL] = true;
+
+var ToIndexedSequence = /*@__PURE__*/(function (IndexedSeq) {
+  function ToIndexedSequence(iter) {
+    this._iter = iter;
+    this.size = iter.size;
+  }
+
+  if ( IndexedSeq ) ToIndexedSequence.__proto__ = IndexedSeq;
+  ToIndexedSequence.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+  ToIndexedSequence.prototype.constructor = ToIndexedSequence;
+
+  ToIndexedSequence.prototype.includes = function includes (value) {
+    return this._iter.includes(value);
+  };
+
+  ToIndexedSequence.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    var i = 0;
+    reverse && ensureSize(this);
+    return this._iter.__iterate(
+      function (v) { return fn(v, reverse ? this$1$1.size - ++i : i++, this$1$1); },
+      reverse
+    );
+  };
+
+  ToIndexedSequence.prototype.__iterator = function __iterator (type, reverse) {
+    var this$1$1 = this;
+
+    var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
+    var i = 0;
+    reverse && ensureSize(this);
+    return new Iterator(function () {
+      var step = iterator.next();
+      return step.done
+        ? step
+        : iteratorValue(
+            type,
+            reverse ? this$1$1.size - ++i : i++,
+            step.value,
+            step
+          );
+    });
+  };
+
+  return ToIndexedSequence;
+}(IndexedSeq));
+
+var ToSetSequence = /*@__PURE__*/(function (SetSeq) {
+  function ToSetSequence(iter) {
+    this._iter = iter;
+    this.size = iter.size;
+  }
+
+  if ( SetSeq ) ToSetSequence.__proto__ = SetSeq;
+  ToSetSequence.prototype = Object.create( SetSeq && SetSeq.prototype );
+  ToSetSequence.prototype.constructor = ToSetSequence;
+
+  ToSetSequence.prototype.has = function has (key) {
+    return this._iter.includes(key);
+  };
+
+  ToSetSequence.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    return this._iter.__iterate(function (v) { return fn(v, v, this$1$1); }, reverse);
+  };
+
+  ToSetSequence.prototype.__iterator = function __iterator (type, reverse) {
+    var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
+    return new Iterator(function () {
+      var step = iterator.next();
+      return step.done
+        ? step
+        : iteratorValue(type, step.value, step.value, step);
+    });
+  };
+
+  return ToSetSequence;
+}(SetSeq));
+
+var FromEntriesSequence = /*@__PURE__*/(function (KeyedSeq) {
+  function FromEntriesSequence(entries) {
+    this._iter = entries;
+    this.size = entries.size;
+  }
+
+  if ( KeyedSeq ) FromEntriesSequence.__proto__ = KeyedSeq;
+  FromEntriesSequence.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
+  FromEntriesSequence.prototype.constructor = FromEntriesSequence;
+
+  FromEntriesSequence.prototype.entrySeq = function entrySeq () {
+    return this._iter.toSeq();
+  };
+
+  FromEntriesSequence.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    return this._iter.__iterate(function (entry) {
+      // Check if entry exists first so array access doesn't throw for holes
+      // in the parent iteration.
+      if (entry) {
+        validateEntry(entry);
+        var indexedCollection = isCollection(entry);
+        return fn(
+          indexedCollection ? entry.get(1) : entry[1],
+          indexedCollection ? entry.get(0) : entry[0],
+          this$1$1
+        );
+      }
+    }, reverse);
+  };
+
+  FromEntriesSequence.prototype.__iterator = function __iterator (type, reverse) {
+    var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
+    return new Iterator(function () {
+      while (true) {
+        var step = iterator.next();
+        if (step.done) {
+          return step;
+        }
+        var entry = step.value;
+        // Check if entry exists first so array access doesn't throw for holes
+        // in the parent iteration.
+        if (entry) {
+          validateEntry(entry);
+          var indexedCollection = isCollection(entry);
+          return iteratorValue(
+            type,
+            indexedCollection ? entry.get(0) : entry[0],
+            indexedCollection ? entry.get(1) : entry[1],
+            step
+          );
+        }
+      }
+    });
+  };
+
+  return FromEntriesSequence;
+}(KeyedSeq));
+
+ToIndexedSequence.prototype.cacheResult =
+  ToKeyedSequence.prototype.cacheResult =
+  ToSetSequence.prototype.cacheResult =
+  FromEntriesSequence.prototype.cacheResult =
+    cacheResultThrough;
+
+function flipFactory(collection) {
+  var flipSequence = makeSequence(collection);
+  flipSequence._iter = collection;
+  flipSequence.size = collection.size;
+  flipSequence.flip = function () { return collection; };
+  flipSequence.reverse = function () {
+    var reversedSequence = collection.reverse.apply(this); // super.reverse()
+    reversedSequence.flip = function () { return collection.reverse(); };
+    return reversedSequence;
+  };
+  flipSequence.has = function (key) { return collection.includes(key); };
+  flipSequence.includes = function (key) { return collection.has(key); };
+  flipSequence.cacheResult = cacheResultThrough;
+  flipSequence.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    return collection.__iterate(function (v, k) { return fn(k, v, this$1$1) !== false; }, reverse);
+  };
+  flipSequence.__iteratorUncached = function (type, reverse) {
+    if (type === ITERATE_ENTRIES) {
+      var iterator = collection.__iterator(type, reverse);
+      return new Iterator(function () {
+        var step = iterator.next();
+        if (!step.done) {
+          var k = step.value[0];
+          step.value[0] = step.value[1];
+          step.value[1] = k;
+        }
+        return step;
+      });
+    }
+    return collection.__iterator(
+      type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,
+      reverse
+    );
+  };
+  return flipSequence;
+}
+
+function mapFactory(collection, mapper, context) {
+  var mappedSequence = makeSequence(collection);
+  mappedSequence.size = collection.size;
+  mappedSequence.has = function (key) { return collection.has(key); };
+  mappedSequence.get = function (key, notSetValue) {
+    var v = collection.get(key, NOT_SET);
+    return v === NOT_SET
+      ? notSetValue
+      : mapper.call(context, v, key, collection);
+  };
+  mappedSequence.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    return collection.__iterate(
+      function (v, k, c) { return fn(mapper.call(context, v, k, c), k, this$1$1) !== false; },
+      reverse
+    );
+  };
+  mappedSequence.__iteratorUncached = function (type, reverse) {
+    var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+    return new Iterator(function () {
+      var step = iterator.next();
+      if (step.done) {
+        return step;
+      }
+      var entry = step.value;
+      var key = entry[0];
+      return iteratorValue(
+        type,
+        key,
+        mapper.call(context, entry[1], key, collection),
+        step
+      );
+    });
+  };
+  return mappedSequence;
+}
+
+function reverseFactory(collection, useKeys) {
+  var this$1$1 = this;
+
+  var reversedSequence = makeSequence(collection);
+  reversedSequence._iter = collection;
+  reversedSequence.size = collection.size;
+  reversedSequence.reverse = function () { return collection; };
+  if (collection.flip) {
+    reversedSequence.flip = function () {
+      var flipSequence = flipFactory(collection);
+      flipSequence.reverse = function () { return collection.flip(); };
+      return flipSequence;
+    };
+  }
+  reversedSequence.get = function (key, notSetValue) { return collection.get(useKeys ? key : -1 - key, notSetValue); };
+  reversedSequence.has = function (key) { return collection.has(useKeys ? key : -1 - key); };
+  reversedSequence.includes = function (value) { return collection.includes(value); };
+  reversedSequence.cacheResult = cacheResultThrough;
+  reversedSequence.__iterate = function (fn, reverse) {
+    var this$1$1 = this;
+
+    var i = 0;
+    reverse && ensureSize(collection);
+    return collection.__iterate(
+      function (v, k) { return fn(v, useKeys ? k : reverse ? this$1$1.size - ++i : i++, this$1$1); },
+      !reverse
+    );
+  };
+  reversedSequence.__iterator = function (type, reverse) {
+    var i = 0;
+    reverse && ensureSize(collection);
+    var iterator = collection.__iterator(ITERATE_ENTRIES, !reverse);
+    return new Iterator(function () {
+      var step = iterator.next();
+      if (step.done) {
+        return step;
+      }
+      var entry = step.value;
+      return iteratorValue(
+        type,
+        useKeys ? entry[0] : reverse ? this$1$1.size - ++i : i++,
+        entry[1],
+        step
+      );
+    });
+  };
+  return reversedSequence;
+}
+
+function filterFactory(collection, predicate, context, useKeys) {
+  var filterSequence = makeSequence(collection);
+  if (useKeys) {
+    filterSequence.has = function (key) {
+      var v = collection.get(key, NOT_SET);
+      return v !== NOT_SET && !!predicate.call(context, v, key, collection);
+    };
+    filterSequence.get = function (key, notSetValue) {
+      var v = collection.get(key, NOT_SET);
+      return v !== NOT_SET && predicate.call(context, v, key, collection)
+        ? v
+        : notSetValue;
+    };
+  }
+  filterSequence.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    var iterations = 0;
+    collection.__iterate(function (v, k, c) {
+      if (predicate.call(context, v, k, c)) {
+        iterations++;
+        return fn(v, useKeys ? k : iterations - 1, this$1$1);
+      }
+    }, reverse);
+    return iterations;
+  };
+  filterSequence.__iteratorUncached = function (type, reverse) {
+    var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+    var iterations = 0;
+    return new Iterator(function () {
+      while (true) {
+        var step = iterator.next();
+        if (step.done) {
+          return step;
+        }
+        var entry = step.value;
+        var key = entry[0];
+        var value = entry[1];
+        if (predicate.call(context, value, key, collection)) {
+          return iteratorValue(type, useKeys ? key : iterations++, value, step);
+        }
+      }
+    });
+  };
+  return filterSequence;
+}
+
+function countByFactory(collection, grouper, context) {
+  var groups = Map().asMutable();
+  collection.__iterate(function (v, k) {
+    groups.update(grouper.call(context, v, k, collection), 0, function (a) { return a + 1; });
+  });
+  return groups.asImmutable();
+}
+
+function groupByFactory(collection, grouper, context) {
+  var isKeyedIter = isKeyed(collection);
+  var groups = (isOrdered(collection) ? OrderedMap() : Map()).asMutable();
+  collection.__iterate(function (v, k) {
+    groups.update(
+      grouper.call(context, v, k, collection),
+      function (a) { return ((a = a || []), a.push(isKeyedIter ? [k, v] : v), a); }
+    );
+  });
+  var coerce = collectionClass(collection);
+  return groups.map(function (arr) { return reify(collection, coerce(arr)); }).asImmutable();
+}
+
+function partitionFactory(collection, predicate, context) {
+  var isKeyedIter = isKeyed(collection);
+  var groups = [[], []];
+  collection.__iterate(function (v, k) {
+    groups[predicate.call(context, v, k, collection) ? 1 : 0].push(
+      isKeyedIter ? [k, v] : v
+    );
+  });
+  var coerce = collectionClass(collection);
+  return groups.map(function (arr) { return reify(collection, coerce(arr)); });
+}
+
+function sliceFactory(collection, begin, end, useKeys) {
+  var originalSize = collection.size;
+
+  if (wholeSlice(begin, end, originalSize)) {
+    return collection;
+  }
+
+  var resolvedBegin = resolveBegin(begin, originalSize);
+  var resolvedEnd = resolveEnd(end, originalSize);
+
+  // begin or end will be NaN if they were provided as negative numbers and
+  // this collection's size is unknown. In that case, cache first so there is
+  // a known size and these do not resolve to NaN.
+  if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {
+    return sliceFactory(collection.toSeq().cacheResult(), begin, end, useKeys);
+  }
+
+  // Note: resolvedEnd is undefined when the original sequence's length is
+  // unknown and this slice did not supply an end and should contain all
+  // elements after resolvedBegin.
+  // In that case, resolvedSize will be NaN and sliceSize will remain undefined.
+  var resolvedSize = resolvedEnd - resolvedBegin;
+  var sliceSize;
+  if (resolvedSize === resolvedSize) {
+    sliceSize = resolvedSize < 0 ? 0 : resolvedSize;
+  }
+
+  var sliceSeq = makeSequence(collection);
+
+  // If collection.size is undefined, the size of the realized sliceSeq is
+  // unknown at this point unless the number of items to slice is 0
+  sliceSeq.size =
+    sliceSize === 0 ? sliceSize : (collection.size && sliceSize) || undefined;
+
+  if (!useKeys && isSeq(collection) && sliceSize >= 0) {
+    sliceSeq.get = function (index, notSetValue) {
+      index = wrapIndex(this, index);
+      return index >= 0 && index < sliceSize
+        ? collection.get(index + resolvedBegin, notSetValue)
+        : notSetValue;
+    };
+  }
+
+  sliceSeq.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    if (sliceSize === 0) {
+      return 0;
+    }
+    if (reverse) {
+      return this.cacheResult().__iterate(fn, reverse);
+    }
+    var skipped = 0;
+    var isSkipping = true;
+    var iterations = 0;
+    collection.__iterate(function (v, k) {
+      if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {
+        iterations++;
+        return (
+          fn(v, useKeys ? k : iterations - 1, this$1$1) !== false &&
+          iterations !== sliceSize
+        );
+      }
+    });
+    return iterations;
+  };
+
+  sliceSeq.__iteratorUncached = function (type, reverse) {
+    if (sliceSize !== 0 && reverse) {
+      return this.cacheResult().__iterator(type, reverse);
+    }
+    // Don't bother instantiating parent iterator if taking 0.
+    if (sliceSize === 0) {
+      return new Iterator(iteratorDone);
+    }
+    var iterator = collection.__iterator(type, reverse);
+    var skipped = 0;
+    var iterations = 0;
+    return new Iterator(function () {
+      while (skipped++ < resolvedBegin) {
+        iterator.next();
+      }
+      if (++iterations > sliceSize) {
+        return iteratorDone();
+      }
+      var step = iterator.next();
+      if (useKeys || type === ITERATE_VALUES || step.done) {
+        return step;
+      }
+      if (type === ITERATE_KEYS) {
+        return iteratorValue(type, iterations - 1, undefined, step);
+      }
+      return iteratorValue(type, iterations - 1, step.value[1], step);
+    });
+  };
+
+  return sliceSeq;
+}
+
+function takeWhileFactory(collection, predicate, context) {
+  var takeSequence = makeSequence(collection);
+  takeSequence.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    if (reverse) {
+      return this.cacheResult().__iterate(fn, reverse);
+    }
+    var iterations = 0;
+    collection.__iterate(
+      function (v, k, c) { return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$1$1); }
+    );
+    return iterations;
+  };
+  takeSequence.__iteratorUncached = function (type, reverse) {
+    var this$1$1 = this;
+
+    if (reverse) {
+      return this.cacheResult().__iterator(type, reverse);
+    }
+    var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+    var iterating = true;
+    return new Iterator(function () {
+      if (!iterating) {
+        return iteratorDone();
+      }
+      var step = iterator.next();
+      if (step.done) {
+        return step;
+      }
+      var entry = step.value;
+      var k = entry[0];
+      var v = entry[1];
+      if (!predicate.call(context, v, k, this$1$1)) {
+        iterating = false;
+        return iteratorDone();
+      }
+      return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);
+    });
+  };
+  return takeSequence;
+}
+
+function skipWhileFactory(collection, predicate, context, useKeys) {
+  var skipSequence = makeSequence(collection);
+  skipSequence.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    if (reverse) {
+      return this.cacheResult().__iterate(fn, reverse);
+    }
+    var isSkipping = true;
+    var iterations = 0;
+    collection.__iterate(function (v, k, c) {
+      if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {
+        iterations++;
+        return fn(v, useKeys ? k : iterations - 1, this$1$1);
+      }
+    });
+    return iterations;
+  };
+  skipSequence.__iteratorUncached = function (type, reverse) {
+    var this$1$1 = this;
+
+    if (reverse) {
+      return this.cacheResult().__iterator(type, reverse);
+    }
+    var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+    var skipping = true;
+    var iterations = 0;
+    return new Iterator(function () {
+      var step;
+      var k;
+      var v;
+      do {
+        step = iterator.next();
+        if (step.done) {
+          if (useKeys || type === ITERATE_VALUES) {
+            return step;
+          }
+          if (type === ITERATE_KEYS) {
+            return iteratorValue(type, iterations++, undefined, step);
+          }
+          return iteratorValue(type, iterations++, step.value[1], step);
+        }
+        var entry = step.value;
+        k = entry[0];
+        v = entry[1];
+        skipping && (skipping = predicate.call(context, v, k, this$1$1));
+      } while (skipping);
+      return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);
+    });
+  };
+  return skipSequence;
+}
+
+function concatFactory(collection, values) {
+  var isKeyedCollection = isKeyed(collection);
+  var iters = [collection]
+    .concat(values)
+    .map(function (v) {
+      if (!isCollection(v)) {
+        v = isKeyedCollection
+          ? keyedSeqFromValue(v)
+          : indexedSeqFromValue(Array.isArray(v) ? v : [v]);
+      } else if (isKeyedCollection) {
+        v = KeyedCollection(v);
+      }
+      return v;
+    })
+    .filter(function (v) { return v.size !== 0; });
+
+  if (iters.length === 0) {
+    return collection;
+  }
+
+  if (iters.length === 1) {
+    var singleton = iters[0];
+    if (
+      singleton === collection ||
+      (isKeyedCollection && isKeyed(singleton)) ||
+      (isIndexed(collection) && isIndexed(singleton))
+    ) {
+      return singleton;
+    }
+  }
+
+  var concatSeq = new ArraySeq(iters);
+  if (isKeyedCollection) {
+    concatSeq = concatSeq.toKeyedSeq();
+  } else if (!isIndexed(collection)) {
+    concatSeq = concatSeq.toSetSeq();
+  }
+  concatSeq = concatSeq.flatten(true);
+  concatSeq.size = iters.reduce(function (sum, seq) {
+    if (sum !== undefined) {
+      var size = seq.size;
+      if (size !== undefined) {
+        return sum + size;
+      }
+    }
+  }, 0);
+  return concatSeq;
+}
+
+function flattenFactory(collection, depth, useKeys) {
+  var flatSequence = makeSequence(collection);
+  flatSequence.__iterateUncached = function (fn, reverse) {
+    if (reverse) {
+      return this.cacheResult().__iterate(fn, reverse);
+    }
+    var iterations = 0;
+    var stopped = false;
+    function flatDeep(iter, currentDepth) {
+      iter.__iterate(function (v, k) {
+        if ((!depth || currentDepth < depth) && isCollection(v)) {
+          flatDeep(v, currentDepth + 1);
+        } else {
+          iterations++;
+          if (fn(v, useKeys ? k : iterations - 1, flatSequence) === false) {
+            stopped = true;
+          }
+        }
+        return !stopped;
+      }, reverse);
+    }
+    flatDeep(collection, 0);
+    return iterations;
+  };
+  flatSequence.__iteratorUncached = function (type, reverse) {
+    if (reverse) {
+      return this.cacheResult().__iterator(type, reverse);
+    }
+    var iterator = collection.__iterator(type, reverse);
+    var stack = [];
+    var iterations = 0;
+    return new Iterator(function () {
+      while (iterator) {
+        var step = iterator.next();
+        if (step.done !== false) {
+          iterator = stack.pop();
+          continue;
+        }
+        var v = step.value;
+        if (type === ITERATE_ENTRIES) {
+          v = v[1];
+        }
+        if ((!depth || stack.length < depth) && isCollection(v)) {
+          stack.push(iterator);
+          iterator = v.__iterator(type, reverse);
+        } else {
+          return useKeys ? step : iteratorValue(type, iterations++, v, step);
+        }
+      }
+      return iteratorDone();
+    });
+  };
+  return flatSequence;
+}
+
+function flatMapFactory(collection, mapper, context) {
+  var coerce = collectionClass(collection);
+  return collection
+    .toSeq()
+    .map(function (v, k) { return coerce(mapper.call(context, v, k, collection)); })
+    .flatten(true);
+}
+
+function interposeFactory(collection, separator) {
+  var interposedSequence = makeSequence(collection);
+  interposedSequence.size = collection.size && collection.size * 2 - 1;
+  interposedSequence.__iterateUncached = function (fn, reverse) {
+    var this$1$1 = this;
+
+    var iterations = 0;
+    collection.__iterate(
+      function (v) { return (!iterations || fn(separator, iterations++, this$1$1) !== false) &&
+        fn(v, iterations++, this$1$1) !== false; },
+      reverse
+    );
+    return iterations;
+  };
+  interposedSequence.__iteratorUncached = function (type, reverse) {
+    var iterator = collection.__iterator(ITERATE_VALUES, reverse);
+    var iterations = 0;
+    var step;
+    return new Iterator(function () {
+      if (!step || iterations % 2) {
+        step = iterator.next();
+        if (step.done) {
+          return step;
+        }
+      }
+      return iterations % 2
+        ? iteratorValue(type, iterations++, separator)
+        : iteratorValue(type, iterations++, step.value, step);
+    });
+  };
+  return interposedSequence;
+}
+
+function sortFactory(collection, comparator, mapper) {
+  if (!comparator) {
+    comparator = defaultComparator;
+  }
+  var isKeyedCollection = isKeyed(collection);
+  var index = 0;
+  var entries = collection
+    .toSeq()
+    .map(function (v, k) { return [k, v, index++, mapper ? mapper(v, k, collection) : v]; })
+    .valueSeq()
+    .toArray();
+  entries
+    .sort(function (a, b) { return comparator(a[3], b[3]) || a[2] - b[2]; })
+    .forEach(
+      isKeyedCollection
+        ? function (v, i) {
+            entries[i].length = 2;
+          }
+        : function (v, i) {
+            entries[i] = v[1];
+          }
+    );
+  return isKeyedCollection
+    ? KeyedSeq(entries)
+    : isIndexed(collection)
+    ? IndexedSeq(entries)
+    : SetSeq(entries);
+}
+
+function maxFactory(collection, comparator, mapper) {
+  if (!comparator) {
+    comparator = defaultComparator;
+  }
+  if (mapper) {
+    var entry = collection
+      .toSeq()
+      .map(function (v, k) { return [v, mapper(v, k, collection)]; })
+      .reduce(function (a, b) { return (maxCompare(comparator, a[1], b[1]) ? b : a); });
+    return entry && entry[0];
+  }
+  return collection.reduce(function (a, b) { return (maxCompare(comparator, a, b) ? b : a); });
+}
+
+function maxCompare(comparator, a, b) {
+  var comp = comparator(b, a);
+  // b is considered the new max if the comparator declares them equal, but
+  // they are not equal and b is in fact a nullish value.
+  return (
+    (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) ||
+    comp > 0
+  );
+}
+
+function zipWithFactory(keyIter, zipper, iters, zipAll) {
+  var zipSequence = makeSequence(keyIter);
+  var sizes = new ArraySeq(iters).map(function (i) { return i.size; });
+  zipSequence.size = zipAll ? sizes.max() : sizes.min();
+  // Note: this a generic base implementation of __iterate in terms of
+  // __iterator which may be more generically useful in the future.
+  zipSequence.__iterate = function (fn, reverse) {
+    /* generic:
+    var iterator = this.__iterator(ITERATE_ENTRIES, reverse);
+    var step;
+    var iterations = 0;
+    while (!(step = iterator.next()).done) {
+      iterations++;
+      if (fn(step.value[1], step.value[0], this) === false) {
+        break;
+      }
+    }
+    return iterations;
+    */
+    // indexed:
+    var iterator = this.__iterator(ITERATE_VALUES, reverse);
+    var step;
+    var iterations = 0;
+    while (!(step = iterator.next()).done) {
+      if (fn(step.value, iterations++, this) === false) {
+        break;
+      }
+    }
+    return iterations;
+  };
+  zipSequence.__iteratorUncached = function (type, reverse) {
+    var iterators = iters.map(
+      function (i) { return ((i = Collection(i)), getIterator(reverse ? i.reverse() : i)); }
+    );
+    var iterations = 0;
+    var isDone = false;
+    return new Iterator(function () {
+      var steps;
+      if (!isDone) {
+        steps = iterators.map(function (i) { return i.next(); });
+        isDone = zipAll ? steps.every(function (s) { return s.done; }) : steps.some(function (s) { return s.done; });
+      }
+      if (isDone) {
+        return iteratorDone();
+      }
+      return iteratorValue(
+        type,
+        iterations++,
+        zipper.apply(
+          null,
+          steps.map(function (s) { return s.value; })
+        )
+      );
+    });
+  };
+  return zipSequence;
+}
+
+// #pragma Helper Functions
+
+function reify(iter, seq) {
+  return iter === seq ? iter : isSeq(iter) ? seq : iter.constructor(seq);
+}
+
+function validateEntry(entry) {
+  if (entry !== Object(entry)) {
+    throw new TypeError('Expected [K, V] tuple: ' + entry);
+  }
+}
+
+function collectionClass(collection) {
+  return isKeyed(collection)
+    ? KeyedCollection
+    : isIndexed(collection)
+    ? IndexedCollection
+    : SetCollection;
+}
+
+function makeSequence(collection) {
+  return Object.create(
+    (isKeyed(collection)
+      ? KeyedSeq
+      : isIndexed(collection)
+      ? IndexedSeq
+      : SetSeq
+    ).prototype
+  );
+}
+
+function cacheResultThrough() {
+  if (this._iter.cacheResult) {
+    this._iter.cacheResult();
+    this.size = this._iter.size;
+    return this;
+  }
+  return Seq.prototype.cacheResult.call(this);
+}
+
+function defaultComparator(a, b) {
+  if (a === undefined && b === undefined) {
+    return 0;
+  }
+
+  if (a === undefined) {
+    return 1;
+  }
+
+  if (b === undefined) {
+    return -1;
+  }
+
+  return a > b ? 1 : a < b ? -1 : 0;
+}
+
+function arrCopy(arr, offset) {
+  offset = offset || 0;
+  var len = Math.max(0, arr.length - offset);
+  var newArr = new Array(len);
+  for (var ii = 0; ii < len; ii++) {
+    newArr[ii] = arr[ii + offset];
+  }
+  return newArr;
+}
+
+function invariant(condition, error) {
+  if (!condition) { throw new Error(error); }
+}
+
+function assertNotInfinite(size) {
+  invariant(
+    size !== Infinity,
+    'Cannot perform this action with an infinite size.'
+  );
+}
+
+function coerceKeyPath(keyPath) {
+  if (isArrayLike(keyPath) && typeof keyPath !== 'string') {
+    return keyPath;
+  }
+  if (isOrdered(keyPath)) {
+    return keyPath.toArray();
+  }
+  throw new TypeError(
+    'Invalid keyPath: expected Ordered Collection or Array: ' + keyPath
+  );
+}
+
+var toString = Object.prototype.toString;
+
+function isPlainObject(value) {
+  // The base prototype's toString deals with Argument objects and native namespaces like Math
+  if (
+    !value ||
+    typeof value !== 'object' ||
+    toString.call(value) !== '[object Object]'
+  ) {
+    return false;
+  }
+
+  var proto = Object.getPrototypeOf(value);
+  if (proto === null) {
+    return true;
+  }
+
+  // Iteratively going up the prototype chain is needed for cross-realm environments (differing contexts, iframes, etc)
+  var parentProto = proto;
+  var nextProto = Object.getPrototypeOf(proto);
+  while (nextProto !== null) {
+    parentProto = nextProto;
+    nextProto = Object.getPrototypeOf(parentProto);
+  }
+  return parentProto === proto;
+}
+
+/**
+ * Returns true if the value is a potentially-persistent data structure, either
+ * provided by Immutable.js or a plain Array or Object.
+ */
+function isDataStructure(value) {
+  return (
+    typeof value === 'object' &&
+    (isImmutable(value) || Array.isArray(value) || isPlainObject(value))
+  );
+}
+
+function quoteString(value) {
+  try {
+    return typeof value === 'string' ? JSON.stringify(value) : String(value);
+  } catch (_ignoreError) {
+    return JSON.stringify(value);
+  }
+}
+
+function has(collection, key) {
+  return isImmutable(collection)
+    ? collection.has(key)
+    : isDataStructure(collection) && hasOwnProperty.call(collection, key);
+}
+
+function get(collection, key, notSetValue) {
+  return isImmutable(collection)
+    ? collection.get(key, notSetValue)
+    : !has(collection, key)
+    ? notSetValue
+    : typeof collection.get === 'function'
+    ? collection.get(key)
+    : collection[key];
+}
+
+function shallowCopy(from) {
+  if (Array.isArray(from)) {
+    return arrCopy(from);
+  }
+  var to = {};
+  for (var key in from) {
+    if (hasOwnProperty.call(from, key)) {
+      to[key] = from[key];
+    }
+  }
+  return to;
+}
+
+function remove(collection, key) {
+  if (!isDataStructure(collection)) {
+    throw new TypeError(
+      'Cannot update non-data-structure value: ' + collection
+    );
+  }
+  if (isImmutable(collection)) {
+    if (!collection.remove) {
+      throw new TypeError(
+        'Cannot update immutable value without .remove() method: ' + collection
+      );
+    }
+    return collection.remove(key);
+  }
+  if (!hasOwnProperty.call(collection, key)) {
+    return collection;
+  }
+  var collectionCopy = shallowCopy(collection);
+  if (Array.isArray(collectionCopy)) {
+    collectionCopy.splice(key, 1);
+  } else {
+    delete collectionCopy[key];
+  }
+  return collectionCopy;
+}
+
+function set(collection, key, value) {
+  if (!isDataStructure(collection)) {
+    throw new TypeError(
+      'Cannot update non-data-structure value: ' + collection
+    );
+  }
+  if (isImmutable(collection)) {
+    if (!collection.set) {
+      throw new TypeError(
+        'Cannot update immutable value without .set() method: ' + collection
+      );
+    }
+    return collection.set(key, value);
+  }
+  if (hasOwnProperty.call(collection, key) && value === collection[key]) {
+    return collection;
+  }
+  var collectionCopy = shallowCopy(collection);
+  collectionCopy[key] = value;
+  return collectionCopy;
+}
+
+function updateIn$1(collection, keyPath, notSetValue, updater) {
+  if (!updater) {
+    updater = notSetValue;
+    notSetValue = undefined;
+  }
+  var updatedValue = updateInDeeply(
+    isImmutable(collection),
+    collection,
+    coerceKeyPath(keyPath),
+    0,
+    notSetValue,
+    updater
+  );
+  return updatedValue === NOT_SET ? notSetValue : updatedValue;
+}
+
+function updateInDeeply(
+  inImmutable,
+  existing,
+  keyPath,
+  i,
+  notSetValue,
+  updater
+) {
+  var wasNotSet = existing === NOT_SET;
+  if (i === keyPath.length) {
+    var existingValue = wasNotSet ? notSetValue : existing;
+    var newValue = updater(existingValue);
+    return newValue === existingValue ? existing : newValue;
+  }
+  if (!wasNotSet && !isDataStructure(existing)) {
+    throw new TypeError(
+      'Cannot update within non-data-structure value in path [' +
+        keyPath.slice(0, i).map(quoteString) +
+        ']: ' +
+        existing
+    );
+  }
+  var key = keyPath[i];
+  var nextExisting = wasNotSet ? NOT_SET : get(existing, key, NOT_SET);
+  var nextUpdated = updateInDeeply(
+    nextExisting === NOT_SET ? inImmutable : isImmutable(nextExisting),
+    nextExisting,
+    keyPath,
+    i + 1,
+    notSetValue,
+    updater
+  );
+  return nextUpdated === nextExisting
+    ? existing
+    : nextUpdated === NOT_SET
+    ? remove(existing, key)
+    : set(
+        wasNotSet ? (inImmutable ? emptyMap() : {}) : existing,
+        key,
+        nextUpdated
+      );
+}
+
+function setIn$1(collection, keyPath, value) {
+  return updateIn$1(collection, keyPath, NOT_SET, function () { return value; });
+}
+
+function setIn(keyPath, v) {
+  return setIn$1(this, keyPath, v);
+}
+
+function removeIn(collection, keyPath) {
+  return updateIn$1(collection, keyPath, function () { return NOT_SET; });
+}
+
+function deleteIn(keyPath) {
+  return removeIn(this, keyPath);
+}
+
+function update$1(collection, key, notSetValue, updater) {
+  return updateIn$1(collection, [key], notSetValue, updater);
+}
+
+function update(key, notSetValue, updater) {
+  return arguments.length === 1
+    ? key(this)
+    : update$1(this, key, notSetValue, updater);
+}
+
+function updateIn(keyPath, notSetValue, updater) {
+  return updateIn$1(this, keyPath, notSetValue, updater);
+}
+
+function merge$1() {
+  var iters = [], len = arguments.length;
+  while ( len-- ) iters[ len ] = arguments[ len ];
+
+  return mergeIntoKeyedWith(this, iters);
+}
+
+function mergeWith$1(merger) {
+  var iters = [], len = arguments.length - 1;
+  while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+  if (typeof merger !== 'function') {
+    throw new TypeError('Invalid merger function: ' + merger);
+  }
+  return mergeIntoKeyedWith(this, iters, merger);
+}
+
+function mergeIntoKeyedWith(collection, collections, merger) {
+  var iters = [];
+  for (var ii = 0; ii < collections.length; ii++) {
+    var collection$1 = KeyedCollection(collections[ii]);
+    if (collection$1.size !== 0) {
+      iters.push(collection$1);
+    }
+  }
+  if (iters.length === 0) {
+    return collection;
+  }
+  if (
+    collection.toSeq().size === 0 &&
+    !collection.__ownerID &&
+    iters.length === 1
+  ) {
+    return collection.constructor(iters[0]);
+  }
+  return collection.withMutations(function (collection) {
+    var mergeIntoCollection = merger
+      ? function (value, key) {
+          update$1(collection, key, NOT_SET, function (oldVal) { return oldVal === NOT_SET ? value : merger(oldVal, value, key); }
+          );
+        }
+      : function (value, key) {
+          collection.set(key, value);
+        };
+    for (var ii = 0; ii < iters.length; ii++) {
+      iters[ii].forEach(mergeIntoCollection);
+    }
+  });
+}
+
+function merge(collection) {
+  var sources = [], len = arguments.length - 1;
+  while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
+
+  return mergeWithSources(collection, sources);
+}
+
+function mergeWith(merger, collection) {
+  var sources = [], len = arguments.length - 2;
+  while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];
+
+  return mergeWithSources(collection, sources, merger);
+}
+
+function mergeDeep$1(collection) {
+  var sources = [], len = arguments.length - 1;
+  while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
+
+  return mergeDeepWithSources(collection, sources);
+}
+
+function mergeDeepWith$1(merger, collection) {
+  var sources = [], len = arguments.length - 2;
+  while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];
+
+  return mergeDeepWithSources(collection, sources, merger);
+}
+
+function mergeDeepWithSources(collection, sources, merger) {
+  return mergeWithSources(collection, sources, deepMergerWith(merger));
+}
+
+function mergeWithSources(collection, sources, merger) {
+  if (!isDataStructure(collection)) {
+    throw new TypeError(
+      'Cannot merge into non-data-structure value: ' + collection
+    );
+  }
+  if (isImmutable(collection)) {
+    return typeof merger === 'function' && collection.mergeWith
+      ? collection.mergeWith.apply(collection, [ merger ].concat( sources ))
+      : collection.merge
+      ? collection.merge.apply(collection, sources)
+      : collection.concat.apply(collection, sources);
+  }
+  var isArray = Array.isArray(collection);
+  var merged = collection;
+  var Collection = isArray ? IndexedCollection : KeyedCollection;
+  var mergeItem = isArray
+    ? function (value) {
+        // Copy on write
+        if (merged === collection) {
+          merged = shallowCopy(merged);
+        }
+        merged.push(value);
+      }
+    : function (value, key) {
+        var hasVal = hasOwnProperty.call(merged, key);
+        var nextVal =
+          hasVal && merger ? merger(merged[key], value, key) : value;
+        if (!hasVal || nextVal !== merged[key]) {
+          // Copy on write
+          if (merged === collection) {
+            merged = shallowCopy(merged);
+          }
+          merged[key] = nextVal;
+        }
+      };
+  for (var i = 0; i < sources.length; i++) {
+    Collection(sources[i]).forEach(mergeItem);
+  }
+  return merged;
+}
+
+function deepMergerWith(merger) {
+  function deepMerger(oldValue, newValue, key) {
+    return isDataStructure(oldValue) &&
+      isDataStructure(newValue) &&
+      areMergeable(oldValue, newValue)
+      ? mergeWithSources(oldValue, [newValue], deepMerger)
+      : merger
+      ? merger(oldValue, newValue, key)
+      : newValue;
+  }
+  return deepMerger;
+}
+
+/**
+ * It's unclear what the desired behavior is for merging two collections that
+ * fall into separate categories between keyed, indexed, or set-like, so we only
+ * consider them mergeable if they fall into the same category.
+ */
+function areMergeable(oldDataStructure, newDataStructure) {
+  var oldSeq = Seq(oldDataStructure);
+  var newSeq = Seq(newDataStructure);
+  // This logic assumes that a sequence can only fall into one of the three
+  // categories mentioned above (since there's no `isSetLike()` method).
+  return (
+    isIndexed(oldSeq) === isIndexed(newSeq) &&
+    isKeyed(oldSeq) === isKeyed(newSeq)
+  );
+}
+
+function mergeDeep() {
+  var iters = [], len = arguments.length;
+  while ( len-- ) iters[ len ] = arguments[ len ];
+
+  return mergeDeepWithSources(this, iters);
+}
+
+function mergeDeepWith(merger) {
+  var iters = [], len = arguments.length - 1;
+  while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+  return mergeDeepWithSources(this, iters, merger);
+}
+
+function mergeIn(keyPath) {
+  var iters = [], len = arguments.length - 1;
+  while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+  return updateIn$1(this, keyPath, emptyMap(), function (m) { return mergeWithSources(m, iters); });
+}
+
+function mergeDeepIn(keyPath) {
+  var iters = [], len = arguments.length - 1;
+  while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+  return updateIn$1(this, keyPath, emptyMap(), function (m) { return mergeDeepWithSources(m, iters); }
+  );
+}
+
+function withMutations(fn) {
+  var mutable = this.asMutable();
+  fn(mutable);
+  return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
+}
+
+function asMutable() {
+  return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
+}
+
+function asImmutable() {
+  return this.__ensureOwner();
+}
+
+function wasAltered() {
+  return this.__altered;
+}
+
+var Map = /*@__PURE__*/(function (KeyedCollection) {
+  function Map(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptyMap()
+      : isMap(value) && !isOrdered(value)
+      ? value
+      : emptyMap().withMutations(function (map) {
+          var iter = KeyedCollection(value);
+          assertNotInfinite(iter.size);
+          iter.forEach(function (v, k) { return map.set(k, v); });
+        });
+  }
+
+  if ( KeyedCollection ) Map.__proto__ = KeyedCollection;
+  Map.prototype = Object.create( KeyedCollection && KeyedCollection.prototype );
+  Map.prototype.constructor = Map;
+
+  Map.of = function of () {
+    var keyValues = [], len = arguments.length;
+    while ( len-- ) keyValues[ len ] = arguments[ len ];
+
+    return emptyMap().withMutations(function (map) {
+      for (var i = 0; i < keyValues.length; i += 2) {
+        if (i + 1 >= keyValues.length) {
+          throw new Error('Missing value for key: ' + keyValues[i]);
+        }
+        map.set(keyValues[i], keyValues[i + 1]);
+      }
+    });
+  };
+
+  Map.prototype.toString = function toString () {
+    return this.__toString('Map {', '}');
+  };
+
+  // @pragma Access
+
+  Map.prototype.get = function get (k, notSetValue) {
+    return this._root
+      ? this._root.get(0, undefined, k, notSetValue)
+      : notSetValue;
+  };
+
+  // @pragma Modification
+
+  Map.prototype.set = function set (k, v) {
+    return updateMap(this, k, v);
+  };
+
+  Map.prototype.remove = function remove (k) {
+    return updateMap(this, k, NOT_SET);
+  };
+
+  Map.prototype.deleteAll = function deleteAll (keys) {
+    var collection = Collection(keys);
+
+    if (collection.size === 0) {
+      return this;
+    }
+
+    return this.withMutations(function (map) {
+      collection.forEach(function (key) { return map.remove(key); });
+    });
+  };
+
+  Map.prototype.clear = function clear () {
+    if (this.size === 0) {
+      return this;
+    }
+    if (this.__ownerID) {
+      this.size = 0;
+      this._root = null;
+      this.__hash = undefined;
+      this.__altered = true;
+      return this;
+    }
+    return emptyMap();
+  };
+
+  // @pragma Composition
+
+  Map.prototype.sort = function sort (comparator) {
+    // Late binding
+    return OrderedMap(sortFactory(this, comparator));
+  };
+
+  Map.prototype.sortBy = function sortBy (mapper, comparator) {
+    // Late binding
+    return OrderedMap(sortFactory(this, comparator, mapper));
+  };
+
+  Map.prototype.map = function map (mapper, context) {
+    var this$1$1 = this;
+
+    return this.withMutations(function (map) {
+      map.forEach(function (value, key) {
+        map.set(key, mapper.call(context, value, key, this$1$1));
+      });
+    });
+  };
+
+  // @pragma Mutability
+
+  Map.prototype.__iterator = function __iterator (type, reverse) {
+    return new MapIterator(this, type, reverse);
+  };
+
+  Map.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    var iterations = 0;
+    this._root &&
+      this._root.iterate(function (entry) {
+        iterations++;
+        return fn(entry[1], entry[0], this$1$1);
+      }, reverse);
+    return iterations;
+  };
+
+  Map.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+    if (ownerID === this.__ownerID) {
+      return this;
+    }
+    if (!ownerID) {
+      if (this.size === 0) {
+        return emptyMap();
+      }
+      this.__ownerID = ownerID;
+      this.__altered = false;
+      return this;
+    }
+    return makeMap(this.size, this._root, ownerID, this.__hash);
+  };
+
+  return Map;
+}(KeyedCollection));
+
+Map.isMap = isMap;
+
+var MapPrototype = Map.prototype;
+MapPrototype[IS_MAP_SYMBOL] = true;
+MapPrototype[DELETE] = MapPrototype.remove;
+MapPrototype.removeAll = MapPrototype.deleteAll;
+MapPrototype.setIn = setIn;
+MapPrototype.removeIn = MapPrototype.deleteIn = deleteIn;
+MapPrototype.update = update;
+MapPrototype.updateIn = updateIn;
+MapPrototype.merge = MapPrototype.concat = merge$1;
+MapPrototype.mergeWith = mergeWith$1;
+MapPrototype.mergeDeep = mergeDeep;
+MapPrototype.mergeDeepWith = mergeDeepWith;
+MapPrototype.mergeIn = mergeIn;
+MapPrototype.mergeDeepIn = mergeDeepIn;
+MapPrototype.withMutations = withMutations;
+MapPrototype.wasAltered = wasAltered;
+MapPrototype.asImmutable = asImmutable;
+MapPrototype['@@transducer/init'] = MapPrototype.asMutable = asMutable;
+MapPrototype['@@transducer/step'] = function (result, arr) {
+  return result.set(arr[0], arr[1]);
+};
+MapPrototype['@@transducer/result'] = function (obj) {
+  return obj.asImmutable();
+};
+
+// #pragma Trie Nodes
+
+var ArrayMapNode = function ArrayMapNode(ownerID, entries) {
+  this.ownerID = ownerID;
+  this.entries = entries;
+};
+
+ArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+  var entries = this.entries;
+  for (var ii = 0, len = entries.length; ii < len; ii++) {
+    if (is(key, entries[ii][0])) {
+      return entries[ii][1];
+    }
+  }
+  return notSetValue;
+};
+
+ArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+  var removed = value === NOT_SET;
+
+  var entries = this.entries;
+  var idx = 0;
+  var len = entries.length;
+  for (; idx < len; idx++) {
+    if (is(key, entries[idx][0])) {
+      break;
+    }
+  }
+  var exists = idx < len;
+
+  if (exists ? entries[idx][1] === value : removed) {
+    return this;
+  }
+
+  SetRef(didAlter);
+  (removed || !exists) && SetRef(didChangeSize);
+
+  if (removed && entries.length === 1) {
+    return; // undefined
+  }
+
+  if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
+    return createNodes(ownerID, entries, key, value);
+  }
+
+  var isEditable = ownerID && ownerID === this.ownerID;
+  var newEntries = isEditable ? entries : arrCopy(entries);
+
+  if (exists) {
+    if (removed) {
+      idx === len - 1
+        ? newEntries.pop()
+        : (newEntries[idx] = newEntries.pop());
+    } else {
+      newEntries[idx] = [key, value];
+    }
+  } else {
+    newEntries.push([key, value]);
+  }
+
+  if (isEditable) {
+    this.entries = newEntries;
+    return this;
+  }
+
+  return new ArrayMapNode(ownerID, newEntries);
+};
+
+var BitmapIndexedNode = function BitmapIndexedNode(ownerID, bitmap, nodes) {
+  this.ownerID = ownerID;
+  this.bitmap = bitmap;
+  this.nodes = nodes;
+};
+
+BitmapIndexedNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+  if (keyHash === undefined) {
+    keyHash = hash(key);
+  }
+  var bit = 1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK);
+  var bitmap = this.bitmap;
+  return (bitmap & bit) === 0
+    ? notSetValue
+    : this.nodes[popCount(bitmap & (bit - 1))].get(
+        shift + SHIFT,
+        keyHash,
+        key,
+        notSetValue
+      );
+};
+
+BitmapIndexedNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+  if (keyHash === undefined) {
+    keyHash = hash(key);
+  }
+  var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+  var bit = 1 << keyHashFrag;
+  var bitmap = this.bitmap;
+  var exists = (bitmap & bit) !== 0;
+
+  if (!exists && value === NOT_SET) {
+    return this;
+  }
+
+  var idx = popCount(bitmap & (bit - 1));
+  var nodes = this.nodes;
+  var node = exists ? nodes[idx] : undefined;
+  var newNode = updateNode(
+    node,
+    ownerID,
+    shift + SHIFT,
+    keyHash,
+    key,
+    value,
+    didChangeSize,
+    didAlter
+  );
+
+  if (newNode === node) {
+    return this;
+  }
+
+  if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
+    return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
+  }
+
+  if (
+    exists &&
+    !newNode &&
+    nodes.length === 2 &&
+    isLeafNode(nodes[idx ^ 1])
+  ) {
+    return nodes[idx ^ 1];
+  }
+
+  if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
+    return newNode;
+  }
+
+  var isEditable = ownerID && ownerID === this.ownerID;
+  var newBitmap = exists ? (newNode ? bitmap : bitmap ^ bit) : bitmap | bit;
+  var newNodes = exists
+    ? newNode
+      ? setAt(nodes, idx, newNode, isEditable)
+      : spliceOut(nodes, idx, isEditable)
+    : spliceIn(nodes, idx, newNode, isEditable);
+
+  if (isEditable) {
+    this.bitmap = newBitmap;
+    this.nodes = newNodes;
+    return this;
+  }
+
+  return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
+};
+
+var HashArrayMapNode = function HashArrayMapNode(ownerID, count, nodes) {
+  this.ownerID = ownerID;
+  this.count = count;
+  this.nodes = nodes;
+};
+
+HashArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+  if (keyHash === undefined) {
+    keyHash = hash(key);
+  }
+  var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+  var node = this.nodes[idx];
+  return node
+    ? node.get(shift + SHIFT, keyHash, key, notSetValue)
+    : notSetValue;
+};
+
+HashArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+  if (keyHash === undefined) {
+    keyHash = hash(key);
+  }
+  var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+  var removed = value === NOT_SET;
+  var nodes = this.nodes;
+  var node = nodes[idx];
+
+  if (removed && !node) {
+    return this;
+  }
+
+  var newNode = updateNode(
+    node,
+    ownerID,
+    shift + SHIFT,
+    keyHash,
+    key,
+    value,
+    didChangeSize,
+    didAlter
+  );
+  if (newNode === node) {
+    return this;
+  }
+
+  var newCount = this.count;
+  if (!node) {
+    newCount++;
+  } else if (!newNode) {
+    newCount--;
+    if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
+      return packNodes(ownerID, nodes, newCount, idx);
+    }
+  }
+
+  var isEditable = ownerID && ownerID === this.ownerID;
+  var newNodes = setAt(nodes, idx, newNode, isEditable);
+
+  if (isEditable) {
+    this.count = newCount;
+    this.nodes = newNodes;
+    return this;
+  }
+
+  return new HashArrayMapNode(ownerID, newCount, newNodes);
+};
+
+var HashCollisionNode = function HashCollisionNode(ownerID, keyHash, entries) {
+  this.ownerID = ownerID;
+  this.keyHash = keyHash;
+  this.entries = entries;
+};
+
+HashCollisionNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+  var entries = this.entries;
+  for (var ii = 0, len = entries.length; ii < len; ii++) {
+    if (is(key, entries[ii][0])) {
+      return entries[ii][1];
+    }
+  }
+  return notSetValue;
+};
+
+HashCollisionNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+  if (keyHash === undefined) {
+    keyHash = hash(key);
+  }
+
+  var removed = value === NOT_SET;
+
+  if (keyHash !== this.keyHash) {
+    if (removed) {
+      return this;
+    }
+    SetRef(didAlter);
+    SetRef(didChangeSize);
+    return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
+  }
+
+  var entries = this.entries;
+  var idx = 0;
+  var len = entries.length;
+  for (; idx < len; idx++) {
+    if (is(key, entries[idx][0])) {
+      break;
+    }
+  }
+  var exists = idx < len;
+
+  if (exists ? entries[idx][1] === value : removed) {
+    return this;
+  }
+
+  SetRef(didAlter);
+  (removed || !exists) && SetRef(didChangeSize);
+
+  if (removed && len === 2) {
+    return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
+  }
+
+  var isEditable = ownerID && ownerID === this.ownerID;
+  var newEntries = isEditable ? entries : arrCopy(entries);
+
+  if (exists) {
+    if (removed) {
+      idx === len - 1
+        ? newEntries.pop()
+        : (newEntries[idx] = newEntries.pop());
+    } else {
+      newEntries[idx] = [key, value];
+    }
+  } else {
+    newEntries.push([key, value]);
+  }
+
+  if (isEditable) {
+    this.entries = newEntries;
+    return this;
+  }
+
+  return new HashCollisionNode(ownerID, this.keyHash, newEntries);
+};
+
+var ValueNode = function ValueNode(ownerID, keyHash, entry) {
+  this.ownerID = ownerID;
+  this.keyHash = keyHash;
+  this.entry = entry;
+};
+
+ValueNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+  return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
+};
+
+ValueNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+  var removed = value === NOT_SET;
+  var keyMatch = is(key, this.entry[0]);
+  if (keyMatch ? value === this.entry[1] : removed) {
+    return this;
+  }
+
+  SetRef(didAlter);
+
+  if (removed) {
+    SetRef(didChangeSize);
+    return; // undefined
+  }
+
+  if (keyMatch) {
+    if (ownerID && ownerID === this.ownerID) {
+      this.entry[1] = value;
+      return this;
+    }
+    return new ValueNode(ownerID, this.keyHash, [key, value]);
+  }
+
+  SetRef(didChangeSize);
+  return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
+};
+
+// #pragma Iterators
+
+ArrayMapNode.prototype.iterate = HashCollisionNode.prototype.iterate =
+  function (fn, reverse) {
+    var entries = this.entries;
+    for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
+      if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
+        return false;
+      }
+    }
+  };
+
+BitmapIndexedNode.prototype.iterate = HashArrayMapNode.prototype.iterate =
+  function (fn, reverse) {
+    var nodes = this.nodes;
+    for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
+      var node = nodes[reverse ? maxIndex - ii : ii];
+      if (node && node.iterate(fn, reverse) === false) {
+        return false;
+      }
+    }
+  };
+
+// eslint-disable-next-line no-unused-vars
+ValueNode.prototype.iterate = function (fn, reverse) {
+  return fn(this.entry);
+};
+
+var MapIterator = /*@__PURE__*/(function (Iterator) {
+  function MapIterator(map, type, reverse) {
+    this._type = type;
+    this._reverse = reverse;
+    this._stack = map._root && mapIteratorFrame(map._root);
+  }
+
+  if ( Iterator ) MapIterator.__proto__ = Iterator;
+  MapIterator.prototype = Object.create( Iterator && Iterator.prototype );
+  MapIterator.prototype.constructor = MapIterator;
+
+  MapIterator.prototype.next = function next () {
+    var type = this._type;
+    var stack = this._stack;
+    while (stack) {
+      var node = stack.node;
+      var index = stack.index++;
+      var maxIndex = (void 0);
+      if (node.entry) {
+        if (index === 0) {
+          return mapIteratorValue(type, node.entry);
+        }
+      } else if (node.entries) {
+        maxIndex = node.entries.length - 1;
+        if (index <= maxIndex) {
+          return mapIteratorValue(
+            type,
+            node.entries[this._reverse ? maxIndex - index : index]
+          );
+        }
+      } else {
+        maxIndex = node.nodes.length - 1;
+        if (index <= maxIndex) {
+          var subNode = node.nodes[this._reverse ? maxIndex - index : index];
+          if (subNode) {
+            if (subNode.entry) {
+              return mapIteratorValue(type, subNode.entry);
+            }
+            stack = this._stack = mapIteratorFrame(subNode, stack);
+          }
+          continue;
+        }
+      }
+      stack = this._stack = this._stack.__prev;
+    }
+    return iteratorDone();
+  };
+
+  return MapIterator;
+}(Iterator));
+
+function mapIteratorValue(type, entry) {
+  return iteratorValue(type, entry[0], entry[1]);
+}
+
+function mapIteratorFrame(node, prev) {
+  return {
+    node: node,
+    index: 0,
+    __prev: prev,
+  };
+}
+
+function makeMap(size, root, ownerID, hash) {
+  var map = Object.create(MapPrototype);
+  map.size = size;
+  map._root = root;
+  map.__ownerID = ownerID;
+  map.__hash = hash;
+  map.__altered = false;
+  return map;
+}
+
+var EMPTY_MAP;
+function emptyMap() {
+  return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
+}
+
+function updateMap(map, k, v) {
+  var newRoot;
+  var newSize;
+  if (!map._root) {
+    if (v === NOT_SET) {
+      return map;
+    }
+    newSize = 1;
+    newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
+  } else {
+    var didChangeSize = MakeRef();
+    var didAlter = MakeRef();
+    newRoot = updateNode(
+      map._root,
+      map.__ownerID,
+      0,
+      undefined,
+      k,
+      v,
+      didChangeSize,
+      didAlter
+    );
+    if (!didAlter.value) {
+      return map;
+    }
+    newSize = map.size + (didChangeSize.value ? (v === NOT_SET ? -1 : 1) : 0);
+  }
+  if (map.__ownerID) {
+    map.size = newSize;
+    map._root = newRoot;
+    map.__hash = undefined;
+    map.__altered = true;
+    return map;
+  }
+  return newRoot ? makeMap(newSize, newRoot) : emptyMap();
+}
+
+function updateNode(
+  node,
+  ownerID,
+  shift,
+  keyHash,
+  key,
+  value,
+  didChangeSize,
+  didAlter
+) {
+  if (!node) {
+    if (value === NOT_SET) {
+      return node;
+    }
+    SetRef(didAlter);
+    SetRef(didChangeSize);
+    return new ValueNode(ownerID, keyHash, [key, value]);
+  }
+  return node.update(
+    ownerID,
+    shift,
+    keyHash,
+    key,
+    value,
+    didChangeSize,
+    didAlter
+  );
+}
+
+function isLeafNode(node) {
+  return (
+    node.constructor === ValueNode || node.constructor === HashCollisionNode
+  );
+}
+
+function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
+  if (node.keyHash === keyHash) {
+    return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
+  }
+
+  var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
+  var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+
+  var newNode;
+  var nodes =
+    idx1 === idx2
+      ? [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)]
+      : ((newNode = new ValueNode(ownerID, keyHash, entry)),
+        idx1 < idx2 ? [node, newNode] : [newNode, node]);
+
+  return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
+}
+
+function createNodes(ownerID, entries, key, value) {
+  if (!ownerID) {
+    ownerID = new OwnerID();
+  }
+  var node = new ValueNode(ownerID, hash(key), [key, value]);
+  for (var ii = 0; ii < entries.length; ii++) {
+    var entry = entries[ii];
+    node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
+  }
+  return node;
+}
+
+function packNodes(ownerID, nodes, count, excluding) {
+  var bitmap = 0;
+  var packedII = 0;
+  var packedNodes = new Array(count);
+  for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
+    var node = nodes[ii];
+    if (node !== undefined && ii !== excluding) {
+      bitmap |= bit;
+      packedNodes[packedII++] = node;
+    }
+  }
+  return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
+}
+
+function expandNodes(ownerID, nodes, bitmap, including, node) {
+  var count = 0;
+  var expandedNodes = new Array(SIZE);
+  for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
+    expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
+  }
+  expandedNodes[including] = node;
+  return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
+}
+
+function popCount(x) {
+  x -= (x >> 1) & 0x55555555;
+  x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
+  x = (x + (x >> 4)) & 0x0f0f0f0f;
+  x += x >> 8;
+  x += x >> 16;
+  return x & 0x7f;
+}
+
+function setAt(array, idx, val, canEdit) {
+  var newArray = canEdit ? array : arrCopy(array);
+  newArray[idx] = val;
+  return newArray;
+}
+
+function spliceIn(array, idx, val, canEdit) {
+  var newLen = array.length + 1;
+  if (canEdit && idx + 1 === newLen) {
+    array[idx] = val;
+    return array;
+  }
+  var newArray = new Array(newLen);
+  var after = 0;
+  for (var ii = 0; ii < newLen; ii++) {
+    if (ii === idx) {
+      newArray[ii] = val;
+      after = -1;
+    } else {
+      newArray[ii] = array[ii + after];
+    }
+  }
+  return newArray;
+}
+
+function spliceOut(array, idx, canEdit) {
+  var newLen = array.length - 1;
+  if (canEdit && idx === newLen) {
+    array.pop();
+    return array;
+  }
+  var newArray = new Array(newLen);
+  var after = 0;
+  for (var ii = 0; ii < newLen; ii++) {
+    if (ii === idx) {
+      after = 1;
+    }
+    newArray[ii] = array[ii + after];
+  }
+  return newArray;
+}
+
+var MAX_ARRAY_MAP_SIZE = SIZE / 4;
+var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
+var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;
+
+var IS_LIST_SYMBOL = '@@__IMMUTABLE_LIST__@@';
+
+function isList(maybeList) {
+  return Boolean(maybeList && maybeList[IS_LIST_SYMBOL]);
+}
+
+var List = /*@__PURE__*/(function (IndexedCollection) {
+  function List(value) {
+    var empty = emptyList();
+    if (value === undefined || value === null) {
+      // eslint-disable-next-line no-constructor-return
+      return empty;
+    }
+    if (isList(value)) {
+      // eslint-disable-next-line no-constructor-return
+      return value;
+    }
+    var iter = IndexedCollection(value);
+    var size = iter.size;
+    if (size === 0) {
+      // eslint-disable-next-line no-constructor-return
+      return empty;
+    }
+    assertNotInfinite(size);
+    if (size > 0 && size < SIZE) {
+      // eslint-disable-next-line no-constructor-return
+      return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
+    }
+    // eslint-disable-next-line no-constructor-return
+    return empty.withMutations(function (list) {
+      list.setSize(size);
+      iter.forEach(function (v, i) { return list.set(i, v); });
+    });
+  }
+
+  if ( IndexedCollection ) List.__proto__ = IndexedCollection;
+  List.prototype = Object.create( IndexedCollection && IndexedCollection.prototype );
+  List.prototype.constructor = List;
+
+  List.of = function of (/*...values*/) {
+    return this(arguments);
+  };
+
+  List.prototype.toString = function toString () {
+    return this.__toString('List [', ']');
+  };
+
+  // @pragma Access
+
+  List.prototype.get = function get (index, notSetValue) {
+    index = wrapIndex(this, index);
+    if (index >= 0 && index < this.size) {
+      index += this._origin;
+      var node = listNodeFor(this, index);
+      return node && node.array[index & MASK];
+    }
+    return notSetValue;
+  };
+
+  // @pragma Modification
+
+  List.prototype.set = function set (index, value) {
+    return updateList(this, index, value);
+  };
+
+  List.prototype.remove = function remove (index) {
+    return !this.has(index)
+      ? this
+      : index === 0
+      ? this.shift()
+      : index === this.size - 1
+      ? this.pop()
+      : this.splice(index, 1);
+  };
+
+  List.prototype.insert = function insert (index, value) {
+    return this.splice(index, 0, value);
+  };
+
+  List.prototype.clear = function clear () {
+    if (this.size === 0) {
+      return this;
+    }
+    if (this.__ownerID) {
+      this.size = this._origin = this._capacity = 0;
+      this._level = SHIFT;
+      this._root = this._tail = this.__hash = undefined;
+      this.__altered = true;
+      return this;
+    }
+    return emptyList();
+  };
+
+  List.prototype.push = function push (/*...values*/) {
+    var values = arguments;
+    var oldSize = this.size;
+    return this.withMutations(function (list) {
+      setListBounds(list, 0, oldSize + values.length);
+      for (var ii = 0; ii < values.length; ii++) {
+        list.set(oldSize + ii, values[ii]);
+      }
+    });
+  };
+
+  List.prototype.pop = function pop () {
+    return setListBounds(this, 0, -1);
+  };
+
+  List.prototype.unshift = function unshift (/*...values*/) {
+    var values = arguments;
+    return this.withMutations(function (list) {
+      setListBounds(list, -values.length);
+      for (var ii = 0; ii < values.length; ii++) {
+        list.set(ii, values[ii]);
+      }
+    });
+  };
+
+  List.prototype.shift = function shift () {
+    return setListBounds(this, 1);
+  };
+
+  // @pragma Composition
+
+  List.prototype.concat = function concat (/*...collections*/) {
+    var arguments$1 = arguments;
+
+    var seqs = [];
+    for (var i = 0; i < arguments.length; i++) {
+      var argument = arguments$1[i];
+      var seq = IndexedCollection(
+        typeof argument !== 'string' && hasIterator(argument)
+          ? argument
+          : [argument]
+      );
+      if (seq.size !== 0) {
+        seqs.push(seq);
+      }
+    }
+    if (seqs.length === 0) {
+      return this;
+    }
+    if (this.size === 0 && !this.__ownerID && seqs.length === 1) {
+      return this.constructor(seqs[0]);
+    }
+    return this.withMutations(function (list) {
+      seqs.forEach(function (seq) { return seq.forEach(function (value) { return list.push(value); }); });
+    });
+  };
+
+  List.prototype.setSize = function setSize (size) {
+    return setListBounds(this, 0, size);
+  };
+
+  List.prototype.map = function map (mapper, context) {
+    var this$1$1 = this;
+
+    return this.withMutations(function (list) {
+      for (var i = 0; i < this$1$1.size; i++) {
+        list.set(i, mapper.call(context, list.get(i), i, this$1$1));
+      }
+    });
+  };
+
+  // @pragma Iteration
+
+  List.prototype.slice = function slice (begin, end) {
+    var size = this.size;
+    if (wholeSlice(begin, end, size)) {
+      return this;
+    }
+    return setListBounds(
+      this,
+      resolveBegin(begin, size),
+      resolveEnd(end, size)
+    );
+  };
+
+  List.prototype.__iterator = function __iterator (type, reverse) {
+    var index = reverse ? this.size : 0;
+    var values = iterateList(this, reverse);
+    return new Iterator(function () {
+      var value = values();
+      return value === DONE
+        ? iteratorDone()
+        : iteratorValue(type, reverse ? --index : index++, value);
+    });
+  };
+
+  List.prototype.__iterate = function __iterate (fn, reverse) {
+    var index = reverse ? this.size : 0;
+    var values = iterateList(this, reverse);
+    var value;
+    while ((value = values()) !== DONE) {
+      if (fn(value, reverse ? --index : index++, this) === false) {
+        break;
+      }
+    }
+    return index;
+  };
+
+  List.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+    if (ownerID === this.__ownerID) {
+      return this;
+    }
+    if (!ownerID) {
+      if (this.size === 0) {
+        return emptyList();
+      }
+      this.__ownerID = ownerID;
+      this.__altered = false;
+      return this;
+    }
+    return makeList(
+      this._origin,
+      this._capacity,
+      this._level,
+      this._root,
+      this._tail,
+      ownerID,
+      this.__hash
+    );
+  };
+
+  return List;
+}(IndexedCollection));
+
+List.isList = isList;
+
+var ListPrototype = List.prototype;
+ListPrototype[IS_LIST_SYMBOL] = true;
+ListPrototype[DELETE] = ListPrototype.remove;
+ListPrototype.merge = ListPrototype.concat;
+ListPrototype.setIn = setIn;
+ListPrototype.deleteIn = ListPrototype.removeIn = deleteIn;
+ListPrototype.update = update;
+ListPrototype.updateIn = updateIn;
+ListPrototype.mergeIn = mergeIn;
+ListPrototype.mergeDeepIn = mergeDeepIn;
+ListPrototype.withMutations = withMutations;
+ListPrototype.wasAltered = wasAltered;
+ListPrototype.asImmutable = asImmutable;
+ListPrototype['@@transducer/init'] = ListPrototype.asMutable = asMutable;
+ListPrototype['@@transducer/step'] = function (result, arr) {
+  return result.push(arr);
+};
+ListPrototype['@@transducer/result'] = function (obj) {
+  return obj.asImmutable();
+};
+
+var VNode = function VNode(array, ownerID) {
+  this.array = array;
+  this.ownerID = ownerID;
+};
+
+// TODO: seems like these methods are very similar
+
+VNode.prototype.removeBefore = function removeBefore (ownerID, level, index) {
+  if (index === level ? 1 << level : this.array.length === 0) {
+    return this;
+  }
+  var originIndex = (index >>> level) & MASK;
+  if (originIndex >= this.array.length) {
+    return new VNode([], ownerID);
+  }
+  var removingFirst = originIndex === 0;
+  var newChild;
+  if (level > 0) {
+    var oldChild = this.array[originIndex];
+    newChild =
+      oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);
+    if (newChild === oldChild && removingFirst) {
+      return this;
+    }
+  }
+  if (removingFirst && !newChild) {
+    return this;
+  }
+  var editable = editableVNode(this, ownerID);
+  if (!removingFirst) {
+    for (var ii = 0; ii < originIndex; ii++) {
+      editable.array[ii] = undefined;
+    }
+  }
+  if (newChild) {
+    editable.array[originIndex] = newChild;
+  }
+  return editable;
+};
+
+VNode.prototype.removeAfter = function removeAfter (ownerID, level, index) {
+  if (index === (level ? 1 << level : 0) || this.array.length === 0) {
+    return this;
+  }
+  var sizeIndex = ((index - 1) >>> level) & MASK;
+  if (sizeIndex >= this.array.length) {
+    return this;
+  }
+
+  var newChild;
+  if (level > 0) {
+    var oldChild = this.array[sizeIndex];
+    newChild =
+      oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
+    if (newChild === oldChild && sizeIndex === this.array.length - 1) {
+      return this;
+    }
+  }
+
+  var editable = editableVNode(this, ownerID);
+  editable.array.splice(sizeIndex + 1);
+  if (newChild) {
+    editable.array[sizeIndex] = newChild;
+  }
+  return editable;
+};
+
+var DONE = {};
+
+function iterateList(list, reverse) {
+  var left = list._origin;
+  var right = list._capacity;
+  var tailPos = getTailOffset(right);
+  var tail = list._tail;
+
+  return iterateNodeOrLeaf(list._root, list._level, 0);
+
+  function iterateNodeOrLeaf(node, level, offset) {
+    return level === 0
+      ? iterateLeaf(node, offset)
+      : iterateNode(node, level, offset);
+  }
+
+  function iterateLeaf(node, offset) {
+    var array = offset === tailPos ? tail && tail.array : node && node.array;
+    var from = offset > left ? 0 : left - offset;
+    var to = right - offset;
+    if (to > SIZE) {
+      to = SIZE;
+    }
+    return function () {
+      if (from === to) {
+        return DONE;
+      }
+      var idx = reverse ? --to : from++;
+      return array && array[idx];
+    };
+  }
+
+  function iterateNode(node, level, offset) {
+    var values;
+    var array = node && node.array;
+    var from = offset > left ? 0 : (left - offset) >> level;
+    var to = ((right - offset) >> level) + 1;
+    if (to > SIZE) {
+      to = SIZE;
+    }
+    return function () {
+      while (true) {
+        if (values) {
+          var value = values();
+          if (value !== DONE) {
+            return value;
+          }
+          values = null;
+        }
+        if (from === to) {
+          return DONE;
+        }
+        var idx = reverse ? --to : from++;
+        values = iterateNodeOrLeaf(
+          array && array[idx],
+          level - SHIFT,
+          offset + (idx << level)
+        );
+      }
+    };
+  }
+}
+
+function makeList(origin, capacity, level, root, tail, ownerID, hash) {
+  var list = Object.create(ListPrototype);
+  list.size = capacity - origin;
+  list._origin = origin;
+  list._capacity = capacity;
+  list._level = level;
+  list._root = root;
+  list._tail = tail;
+  list.__ownerID = ownerID;
+  list.__hash = hash;
+  list.__altered = false;
+  return list;
+}
+
+var EMPTY_LIST;
+function emptyList() {
+  return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));
+}
+
+function updateList(list, index, value) {
+  index = wrapIndex(list, index);
+
+  if (index !== index) {
+    return list;
+  }
+
+  if (index >= list.size || index < 0) {
+    return list.withMutations(function (list) {
+      index < 0
+        ? setListBounds(list, index).set(0, value)
+        : setListBounds(list, 0, index + 1).set(index, value);
+    });
+  }
+
+  index += list._origin;
+
+  var newTail = list._tail;
+  var newRoot = list._root;
+  var didAlter = MakeRef();
+  if (index >= getTailOffset(list._capacity)) {
+    newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);
+  } else {
+    newRoot = updateVNode(
+      newRoot,
+      list.__ownerID,
+      list._level,
+      index,
+      value,
+      didAlter
+    );
+  }
+
+  if (!didAlter.value) {
+    return list;
+  }
+
+  if (list.__ownerID) {
+    list._root = newRoot;
+    list._tail = newTail;
+    list.__hash = undefined;
+    list.__altered = true;
+    return list;
+  }
+  return makeList(list._origin, list._capacity, list._level, newRoot, newTail);
+}
+
+function updateVNode(node, ownerID, level, index, value, didAlter) {
+  var idx = (index >>> level) & MASK;
+  var nodeHas = node && idx < node.array.length;
+  if (!nodeHas && value === undefined) {
+    return node;
+  }
+
+  var newNode;
+
+  if (level > 0) {
+    var lowerNode = node && node.array[idx];
+    var newLowerNode = updateVNode(
+      lowerNode,
+      ownerID,
+      level - SHIFT,
+      index,
+      value,
+      didAlter
+    );
+    if (newLowerNode === lowerNode) {
+      return node;
+    }
+    newNode = editableVNode(node, ownerID);
+    newNode.array[idx] = newLowerNode;
+    return newNode;
+  }
+
+  if (nodeHas && node.array[idx] === value) {
+    return node;
+  }
+
+  if (didAlter) {
+    SetRef(didAlter);
+  }
+
+  newNode = editableVNode(node, ownerID);
+  if (value === undefined && idx === newNode.array.length - 1) {
+    newNode.array.pop();
+  } else {
+    newNode.array[idx] = value;
+  }
+  return newNode;
+}
+
+function editableVNode(node, ownerID) {
+  if (ownerID && node && ownerID === node.ownerID) {
+    return node;
+  }
+  return new VNode(node ? node.array.slice() : [], ownerID);
+}
+
+function listNodeFor(list, rawIndex) {
+  if (rawIndex >= getTailOffset(list._capacity)) {
+    return list._tail;
+  }
+  if (rawIndex < 1 << (list._level + SHIFT)) {
+    var node = list._root;
+    var level = list._level;
+    while (node && level > 0) {
+      node = node.array[(rawIndex >>> level) & MASK];
+      level -= SHIFT;
+    }
+    return node;
+  }
+}
+
+function setListBounds(list, begin, end) {
+  // Sanitize begin & end using this shorthand for ToInt32(argument)
+  // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
+  if (begin !== undefined) {
+    begin |= 0;
+  }
+  if (end !== undefined) {
+    end |= 0;
+  }
+  var owner = list.__ownerID || new OwnerID();
+  var oldOrigin = list._origin;
+  var oldCapacity = list._capacity;
+  var newOrigin = oldOrigin + begin;
+  var newCapacity =
+    end === undefined
+      ? oldCapacity
+      : end < 0
+      ? oldCapacity + end
+      : oldOrigin + end;
+  if (newOrigin === oldOrigin && newCapacity === oldCapacity) {
+    return list;
+  }
+
+  // If it's going to end after it starts, it's empty.
+  if (newOrigin >= newCapacity) {
+    return list.clear();
+  }
+
+  var newLevel = list._level;
+  var newRoot = list._root;
+
+  // New origin might need creating a higher root.
+  var offsetShift = 0;
+  while (newOrigin + offsetShift < 0) {
+    newRoot = new VNode(
+      newRoot && newRoot.array.length ? [undefined, newRoot] : [],
+      owner
+    );
+    newLevel += SHIFT;
+    offsetShift += 1 << newLevel;
+  }
+  if (offsetShift) {
+    newOrigin += offsetShift;
+    oldOrigin += offsetShift;
+    newCapacity += offsetShift;
+    oldCapacity += offsetShift;
+  }
+
+  var oldTailOffset = getTailOffset(oldCapacity);
+  var newTailOffset = getTailOffset(newCapacity);
+
+  // New size might need creating a higher root.
+  while (newTailOffset >= 1 << (newLevel + SHIFT)) {
+    newRoot = new VNode(
+      newRoot && newRoot.array.length ? [newRoot] : [],
+      owner
+    );
+    newLevel += SHIFT;
+  }
+
+  // Locate or create the new tail.
+  var oldTail = list._tail;
+  var newTail =
+    newTailOffset < oldTailOffset
+      ? listNodeFor(list, newCapacity - 1)
+      : newTailOffset > oldTailOffset
+      ? new VNode([], owner)
+      : oldTail;
+
+  // Merge Tail into tree.
+  if (
+    oldTail &&
+    newTailOffset > oldTailOffset &&
+    newOrigin < oldCapacity &&
+    oldTail.array.length
+  ) {
+    newRoot = editableVNode(newRoot, owner);
+    var node = newRoot;
+    for (var level = newLevel; level > SHIFT; level -= SHIFT) {
+      var idx = (oldTailOffset >>> level) & MASK;
+      node = node.array[idx] = editableVNode(node.array[idx], owner);
+    }
+    node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;
+  }
+
+  // If the size has been reduced, there's a chance the tail needs to be trimmed.
+  if (newCapacity < oldCapacity) {
+    newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);
+  }
+
+  // If the new origin is within the tail, then we do not need a root.
+  if (newOrigin >= newTailOffset) {
+    newOrigin -= newTailOffset;
+    newCapacity -= newTailOffset;
+    newLevel = SHIFT;
+    newRoot = null;
+    newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);
+
+    // Otherwise, if the root has been trimmed, garbage collect.
+  } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {
+    offsetShift = 0;
+
+    // Identify the new top root node of the subtree of the old root.
+    while (newRoot) {
+      var beginIndex = (newOrigin >>> newLevel) & MASK;
+      if ((beginIndex !== newTailOffset >>> newLevel) & MASK) {
+        break;
+      }
+      if (beginIndex) {
+        offsetShift += (1 << newLevel) * beginIndex;
+      }
+      newLevel -= SHIFT;
+      newRoot = newRoot.array[beginIndex];
+    }
+
+    // Trim the new sides of the new root.
+    if (newRoot && newOrigin > oldOrigin) {
+      newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);
+    }
+    if (newRoot && newTailOffset < oldTailOffset) {
+      newRoot = newRoot.removeAfter(
+        owner,
+        newLevel,
+        newTailOffset - offsetShift
+      );
+    }
+    if (offsetShift) {
+      newOrigin -= offsetShift;
+      newCapacity -= offsetShift;
+    }
+  }
+
+  if (list.__ownerID) {
+    list.size = newCapacity - newOrigin;
+    list._origin = newOrigin;
+    list._capacity = newCapacity;
+    list._level = newLevel;
+    list._root = newRoot;
+    list._tail = newTail;
+    list.__hash = undefined;
+    list.__altered = true;
+    return list;
+  }
+  return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);
+}
+
+function getTailOffset(size) {
+  return size < SIZE ? 0 : ((size - 1) >>> SHIFT) << SHIFT;
+}
+
+var OrderedMap = /*@__PURE__*/(function (Map) {
+  function OrderedMap(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptyOrderedMap()
+      : isOrderedMap(value)
+      ? value
+      : emptyOrderedMap().withMutations(function (map) {
+          var iter = KeyedCollection(value);
+          assertNotInfinite(iter.size);
+          iter.forEach(function (v, k) { return map.set(k, v); });
+        });
+  }
+
+  if ( Map ) OrderedMap.__proto__ = Map;
+  OrderedMap.prototype = Object.create( Map && Map.prototype );
+  OrderedMap.prototype.constructor = OrderedMap;
+
+  OrderedMap.of = function of (/*...values*/) {
+    return this(arguments);
+  };
+
+  OrderedMap.prototype.toString = function toString () {
+    return this.__toString('OrderedMap {', '}');
+  };
+
+  // @pragma Access
+
+  OrderedMap.prototype.get = function get (k, notSetValue) {
+    var index = this._map.get(k);
+    return index !== undefined ? this._list.get(index)[1] : notSetValue;
+  };
+
+  // @pragma Modification
+
+  OrderedMap.prototype.clear = function clear () {
+    if (this.size === 0) {
+      return this;
+    }
+    if (this.__ownerID) {
+      this.size = 0;
+      this._map.clear();
+      this._list.clear();
+      this.__altered = true;
+      return this;
+    }
+    return emptyOrderedMap();
+  };
+
+  OrderedMap.prototype.set = function set (k, v) {
+    return updateOrderedMap(this, k, v);
+  };
+
+  OrderedMap.prototype.remove = function remove (k) {
+    return updateOrderedMap(this, k, NOT_SET);
+  };
+
+  OrderedMap.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    return this._list.__iterate(
+      function (entry) { return entry && fn(entry[1], entry[0], this$1$1); },
+      reverse
+    );
+  };
+
+  OrderedMap.prototype.__iterator = function __iterator (type, reverse) {
+    return this._list.fromEntrySeq().__iterator(type, reverse);
+  };
+
+  OrderedMap.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+    if (ownerID === this.__ownerID) {
+      return this;
+    }
+    var newMap = this._map.__ensureOwner(ownerID);
+    var newList = this._list.__ensureOwner(ownerID);
+    if (!ownerID) {
+      if (this.size === 0) {
+        return emptyOrderedMap();
+      }
+      this.__ownerID = ownerID;
+      this.__altered = false;
+      this._map = newMap;
+      this._list = newList;
+      return this;
+    }
+    return makeOrderedMap(newMap, newList, ownerID, this.__hash);
+  };
+
+  return OrderedMap;
+}(Map));
+
+OrderedMap.isOrderedMap = isOrderedMap;
+
+OrderedMap.prototype[IS_ORDERED_SYMBOL] = true;
+OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;
+
+function makeOrderedMap(map, list, ownerID, hash) {
+  var omap = Object.create(OrderedMap.prototype);
+  omap.size = map ? map.size : 0;
+  omap._map = map;
+  omap._list = list;
+  omap.__ownerID = ownerID;
+  omap.__hash = hash;
+  omap.__altered = false;
+  return omap;
+}
+
+var EMPTY_ORDERED_MAP;
+function emptyOrderedMap() {
+  return (
+    EMPTY_ORDERED_MAP ||
+    (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()))
+  );
+}
+
+function updateOrderedMap(omap, k, v) {
+  var map = omap._map;
+  var list = omap._list;
+  var i = map.get(k);
+  var has = i !== undefined;
+  var newMap;
+  var newList;
+  if (v === NOT_SET) {
+    // removed
+    if (!has) {
+      return omap;
+    }
+    if (list.size >= SIZE && list.size >= map.size * 2) {
+      newList = list.filter(function (entry, idx) { return entry !== undefined && i !== idx; });
+      newMap = newList
+        .toKeyedSeq()
+        .map(function (entry) { return entry[0]; })
+        .flip()
+        .toMap();
+      if (omap.__ownerID) {
+        newMap.__ownerID = newList.__ownerID = omap.__ownerID;
+      }
+    } else {
+      newMap = map.remove(k);
+      newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);
+    }
+  } else if (has) {
+    if (v === list.get(i)[1]) {
+      return omap;
+    }
+    newMap = map;
+    newList = list.set(i, [k, v]);
+  } else {
+    newMap = map.set(k, list.size);
+    newList = list.set(list.size, [k, v]);
+  }
+  if (omap.__ownerID) {
+    omap.size = newMap.size;
+    omap._map = newMap;
+    omap._list = newList;
+    omap.__hash = undefined;
+    omap.__altered = true;
+    return omap;
+  }
+  return makeOrderedMap(newMap, newList);
+}
+
+var IS_STACK_SYMBOL = '@@__IMMUTABLE_STACK__@@';
+
+function isStack(maybeStack) {
+  return Boolean(maybeStack && maybeStack[IS_STACK_SYMBOL]);
+}
+
+var Stack = /*@__PURE__*/(function (IndexedCollection) {
+  function Stack(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptyStack()
+      : isStack(value)
+      ? value
+      : emptyStack().pushAll(value);
+  }
+
+  if ( IndexedCollection ) Stack.__proto__ = IndexedCollection;
+  Stack.prototype = Object.create( IndexedCollection && IndexedCollection.prototype );
+  Stack.prototype.constructor = Stack;
+
+  Stack.of = function of (/*...values*/) {
+    return this(arguments);
+  };
+
+  Stack.prototype.toString = function toString () {
+    return this.__toString('Stack [', ']');
+  };
+
+  // @pragma Access
+
+  Stack.prototype.get = function get (index, notSetValue) {
+    var head = this._head;
+    index = wrapIndex(this, index);
+    while (head && index--) {
+      head = head.next;
+    }
+    return head ? head.value : notSetValue;
+  };
+
+  Stack.prototype.peek = function peek () {
+    return this._head && this._head.value;
+  };
+
+  // @pragma Modification
+
+  Stack.prototype.push = function push (/*...values*/) {
+    var arguments$1 = arguments;
+
+    if (arguments.length === 0) {
+      return this;
+    }
+    var newSize = this.size + arguments.length;
+    var head = this._head;
+    for (var ii = arguments.length - 1; ii >= 0; ii--) {
+      head = {
+        value: arguments$1[ii],
+        next: head,
+      };
+    }
+    if (this.__ownerID) {
+      this.size = newSize;
+      this._head = head;
+      this.__hash = undefined;
+      this.__altered = true;
+      return this;
+    }
+    return makeStack(newSize, head);
+  };
+
+  Stack.prototype.pushAll = function pushAll (iter) {
+    iter = IndexedCollection(iter);
+    if (iter.size === 0) {
+      return this;
+    }
+    if (this.size === 0 && isStack(iter)) {
+      return iter;
+    }
+    assertNotInfinite(iter.size);
+    var newSize = this.size;
+    var head = this._head;
+    iter.__iterate(function (value) {
+      newSize++;
+      head = {
+        value: value,
+        next: head,
+      };
+    }, /* reverse */ true);
+    if (this.__ownerID) {
+      this.size = newSize;
+      this._head = head;
+      this.__hash = undefined;
+      this.__altered = true;
+      return this;
+    }
+    return makeStack(newSize, head);
+  };
+
+  Stack.prototype.pop = function pop () {
+    return this.slice(1);
+  };
+
+  Stack.prototype.clear = function clear () {
+    if (this.size === 0) {
+      return this;
+    }
+    if (this.__ownerID) {
+      this.size = 0;
+      this._head = undefined;
+      this.__hash = undefined;
+      this.__altered = true;
+      return this;
+    }
+    return emptyStack();
+  };
+
+  Stack.prototype.slice = function slice (begin, end) {
+    if (wholeSlice(begin, end, this.size)) {
+      return this;
+    }
+    var resolvedBegin = resolveBegin(begin, this.size);
+    var resolvedEnd = resolveEnd(end, this.size);
+    if (resolvedEnd !== this.size) {
+      // super.slice(begin, end);
+      return IndexedCollection.prototype.slice.call(this, begin, end);
+    }
+    var newSize = this.size - resolvedBegin;
+    var head = this._head;
+    while (resolvedBegin--) {
+      head = head.next;
+    }
+    if (this.__ownerID) {
+      this.size = newSize;
+      this._head = head;
+      this.__hash = undefined;
+      this.__altered = true;
+      return this;
+    }
+    return makeStack(newSize, head);
+  };
+
+  // @pragma Mutability
+
+  Stack.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+    if (ownerID === this.__ownerID) {
+      return this;
+    }
+    if (!ownerID) {
+      if (this.size === 0) {
+        return emptyStack();
+      }
+      this.__ownerID = ownerID;
+      this.__altered = false;
+      return this;
+    }
+    return makeStack(this.size, this._head, ownerID, this.__hash);
+  };
+
+  // @pragma Iteration
+
+  Stack.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    if (reverse) {
+      return new ArraySeq(this.toArray()).__iterate(
+        function (v, k) { return fn(v, k, this$1$1); },
+        reverse
+      );
+    }
+    var iterations = 0;
+    var node = this._head;
+    while (node) {
+      if (fn(node.value, iterations++, this) === false) {
+        break;
+      }
+      node = node.next;
+    }
+    return iterations;
+  };
+
+  Stack.prototype.__iterator = function __iterator (type, reverse) {
+    if (reverse) {
+      return new ArraySeq(this.toArray()).__iterator(type, reverse);
+    }
+    var iterations = 0;
+    var node = this._head;
+    return new Iterator(function () {
+      if (node) {
+        var value = node.value;
+        node = node.next;
+        return iteratorValue(type, iterations++, value);
+      }
+      return iteratorDone();
+    });
+  };
+
+  return Stack;
+}(IndexedCollection));
+
+Stack.isStack = isStack;
+
+var StackPrototype = Stack.prototype;
+StackPrototype[IS_STACK_SYMBOL] = true;
+StackPrototype.shift = StackPrototype.pop;
+StackPrototype.unshift = StackPrototype.push;
+StackPrototype.unshiftAll = StackPrototype.pushAll;
+StackPrototype.withMutations = withMutations;
+StackPrototype.wasAltered = wasAltered;
+StackPrototype.asImmutable = asImmutable;
+StackPrototype['@@transducer/init'] = StackPrototype.asMutable = asMutable;
+StackPrototype['@@transducer/step'] = function (result, arr) {
+  return result.unshift(arr);
+};
+StackPrototype['@@transducer/result'] = function (obj) {
+  return obj.asImmutable();
+};
+
+function makeStack(size, head, ownerID, hash) {
+  var map = Object.create(StackPrototype);
+  map.size = size;
+  map._head = head;
+  map.__ownerID = ownerID;
+  map.__hash = hash;
+  map.__altered = false;
+  return map;
+}
+
+var EMPTY_STACK;
+function emptyStack() {
+  return EMPTY_STACK || (EMPTY_STACK = makeStack(0));
+}
+
+var IS_SET_SYMBOL = '@@__IMMUTABLE_SET__@@';
+
+function isSet(maybeSet) {
+  return Boolean(maybeSet && maybeSet[IS_SET_SYMBOL]);
+}
+
+function isOrderedSet(maybeOrderedSet) {
+  return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);
+}
+
+function deepEqual(a, b) {
+  if (a === b) {
+    return true;
+  }
+
+  if (
+    !isCollection(b) ||
+    (a.size !== undefined && b.size !== undefined && a.size !== b.size) ||
+    (a.__hash !== undefined &&
+      b.__hash !== undefined &&
+      a.__hash !== b.__hash) ||
+    isKeyed(a) !== isKeyed(b) ||
+    isIndexed(a) !== isIndexed(b) ||
+    isOrdered(a) !== isOrdered(b)
+  ) {
+    return false;
+  }
+
+  if (a.size === 0 && b.size === 0) {
+    return true;
+  }
+
+  var notAssociative = !isAssociative(a);
+
+  if (isOrdered(a)) {
+    var entries = a.entries();
+    return (
+      b.every(function (v, k) {
+        var entry = entries.next().value;
+        return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
+      }) && entries.next().done
+    );
+  }
+
+  var flipped = false;
+
+  if (a.size === undefined) {
+    if (b.size === undefined) {
+      if (typeof a.cacheResult === 'function') {
+        a.cacheResult();
+      }
+    } else {
+      flipped = true;
+      var _ = a;
+      a = b;
+      b = _;
+    }
+  }
+
+  var allEqual = true;
+  var bSize = b.__iterate(function (v, k) {
+    if (
+      notAssociative
+        ? !a.has(v)
+        : flipped
+        ? !is(v, a.get(k, NOT_SET))
+        : !is(a.get(k, NOT_SET), v)
+    ) {
+      allEqual = false;
+      return false;
+    }
+  });
+
+  return allEqual && a.size === bSize;
+}
+
+function mixin(ctor, methods) {
+  var keyCopier = function (key) {
+    ctor.prototype[key] = methods[key];
+  };
+  Object.keys(methods).forEach(keyCopier);
+  Object.getOwnPropertySymbols &&
+    Object.getOwnPropertySymbols(methods).forEach(keyCopier);
+  return ctor;
+}
+
+function toJS(value) {
+  if (!value || typeof value !== 'object') {
+    return value;
+  }
+  if (!isCollection(value)) {
+    if (!isDataStructure(value)) {
+      return value;
+    }
+    value = Seq(value);
+  }
+  if (isKeyed(value)) {
+    var result$1 = {};
+    value.__iterate(function (v, k) {
+      result$1[k] = toJS(v);
+    });
+    return result$1;
+  }
+  var result = [];
+  value.__iterate(function (v) {
+    result.push(toJS(v));
+  });
+  return result;
+}
+
+var Set = /*@__PURE__*/(function (SetCollection) {
+  function Set(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptySet()
+      : isSet(value) && !isOrdered(value)
+      ? value
+      : emptySet().withMutations(function (set) {
+          var iter = SetCollection(value);
+          assertNotInfinite(iter.size);
+          iter.forEach(function (v) { return set.add(v); });
+        });
+  }
+
+  if ( SetCollection ) Set.__proto__ = SetCollection;
+  Set.prototype = Object.create( SetCollection && SetCollection.prototype );
+  Set.prototype.constructor = Set;
+
+  Set.of = function of (/*...values*/) {
+    return this(arguments);
+  };
+
+  Set.fromKeys = function fromKeys (value) {
+    return this(KeyedCollection(value).keySeq());
+  };
+
+  Set.intersect = function intersect (sets) {
+    sets = Collection(sets).toArray();
+    return sets.length
+      ? SetPrototype.intersect.apply(Set(sets.pop()), sets)
+      : emptySet();
+  };
+
+  Set.union = function union (sets) {
+    sets = Collection(sets).toArray();
+    return sets.length
+      ? SetPrototype.union.apply(Set(sets.pop()), sets)
+      : emptySet();
+  };
+
+  Set.prototype.toString = function toString () {
+    return this.__toString('Set {', '}');
+  };
+
+  // @pragma Access
+
+  Set.prototype.has = function has (value) {
+    return this._map.has(value);
+  };
+
+  // @pragma Modification
+
+  Set.prototype.add = function add (value) {
+    return updateSet(this, this._map.set(value, value));
+  };
+
+  Set.prototype.remove = function remove (value) {
+    return updateSet(this, this._map.remove(value));
+  };
+
+  Set.prototype.clear = function clear () {
+    return updateSet(this, this._map.clear());
+  };
+
+  // @pragma Composition
+
+  Set.prototype.map = function map (mapper, context) {
+    var this$1$1 = this;
+
+    // keep track if the set is altered by the map function
+    var didChanges = false;
+
+    var newMap = updateSet(
+      this,
+      this._map.mapEntries(function (ref) {
+        var v = ref[1];
+
+        var mapped = mapper.call(context, v, v, this$1$1);
+
+        if (mapped !== v) {
+          didChanges = true;
+        }
+
+        return [mapped, mapped];
+      }, context)
+    );
+
+    return didChanges ? newMap : this;
+  };
+
+  Set.prototype.union = function union () {
+    var iters = [], len = arguments.length;
+    while ( len-- ) iters[ len ] = arguments[ len ];
+
+    iters = iters.filter(function (x) { return x.size !== 0; });
+    if (iters.length === 0) {
+      return this;
+    }
+    if (this.size === 0 && !this.__ownerID && iters.length === 1) {
+      return this.constructor(iters[0]);
+    }
+    return this.withMutations(function (set) {
+      for (var ii = 0; ii < iters.length; ii++) {
+        if (typeof iters[ii] === 'string') {
+          set.add(iters[ii]);
+        } else {
+          SetCollection(iters[ii]).forEach(function (value) { return set.add(value); });
+        }
+      }
+    });
+  };
+
+  Set.prototype.intersect = function intersect () {
+    var iters = [], len = arguments.length;
+    while ( len-- ) iters[ len ] = arguments[ len ];
+
+    if (iters.length === 0) {
+      return this;
+    }
+    iters = iters.map(function (iter) { return SetCollection(iter); });
+    var toRemove = [];
+    this.forEach(function (value) {
+      if (!iters.every(function (iter) { return iter.includes(value); })) {
+        toRemove.push(value);
+      }
+    });
+    return this.withMutations(function (set) {
+      toRemove.forEach(function (value) {
+        set.remove(value);
+      });
+    });
+  };
+
+  Set.prototype.subtract = function subtract () {
+    var iters = [], len = arguments.length;
+    while ( len-- ) iters[ len ] = arguments[ len ];
+
+    if (iters.length === 0) {
+      return this;
+    }
+    iters = iters.map(function (iter) { return SetCollection(iter); });
+    var toRemove = [];
+    this.forEach(function (value) {
+      if (iters.some(function (iter) { return iter.includes(value); })) {
+        toRemove.push(value);
+      }
+    });
+    return this.withMutations(function (set) {
+      toRemove.forEach(function (value) {
+        set.remove(value);
+      });
+    });
+  };
+
+  Set.prototype.sort = function sort (comparator) {
+    // Late binding
+    return OrderedSet(sortFactory(this, comparator));
+  };
+
+  Set.prototype.sortBy = function sortBy (mapper, comparator) {
+    // Late binding
+    return OrderedSet(sortFactory(this, comparator, mapper));
+  };
+
+  Set.prototype.wasAltered = function wasAltered () {
+    return this._map.wasAltered();
+  };
+
+  Set.prototype.__iterate = function __iterate (fn, reverse) {
+    var this$1$1 = this;
+
+    return this._map.__iterate(function (k) { return fn(k, k, this$1$1); }, reverse);
+  };
+
+  Set.prototype.__iterator = function __iterator (type, reverse) {
+    return this._map.__iterator(type, reverse);
+  };
+
+  Set.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+    if (ownerID === this.__ownerID) {
+      return this;
+    }
+    var newMap = this._map.__ensureOwner(ownerID);
+    if (!ownerID) {
+      if (this.size === 0) {
+        return this.__empty();
+      }
+      this.__ownerID = ownerID;
+      this._map = newMap;
+      return this;
+    }
+    return this.__make(newMap, ownerID);
+  };
+
+  return Set;
+}(SetCollection));
+
+Set.isSet = isSet;
+
+var SetPrototype = Set.prototype;
+SetPrototype[IS_SET_SYMBOL] = true;
+SetPrototype[DELETE] = SetPrototype.remove;
+SetPrototype.merge = SetPrototype.concat = SetPrototype.union;
+SetPrototype.withMutations = withMutations;
+SetPrototype.asImmutable = asImmutable;
+SetPrototype['@@transducer/init'] = SetPrototype.asMutable = asMutable;
+SetPrototype['@@transducer/step'] = function (result, arr) {
+  return result.add(arr);
+};
+SetPrototype['@@transducer/result'] = function (obj) {
+  return obj.asImmutable();
+};
+
+SetPrototype.__empty = emptySet;
+SetPrototype.__make = makeSet;
+
+function updateSet(set, newMap) {
+  if (set.__ownerID) {
+    set.size = newMap.size;
+    set._map = newMap;
+    return set;
+  }
+  return newMap === set._map
+    ? set
+    : newMap.size === 0
+    ? set.__empty()
+    : set.__make(newMap);
+}
+
+function makeSet(map, ownerID) {
+  var set = Object.create(SetPrototype);
+  set.size = map ? map.size : 0;
+  set._map = map;
+  set.__ownerID = ownerID;
+  return set;
+}
+
+var EMPTY_SET;
+function emptySet() {
+  return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));
+}
+
+/**
+ * Returns a lazy seq of nums from start (inclusive) to end
+ * (exclusive), by step, where start defaults to 0, step to 1, and end to
+ * infinity. When start is equal to end, returns empty list.
+ */
+var Range = /*@__PURE__*/(function (IndexedSeq) {
+  function Range(start, end, step) {
+    if (!(this instanceof Range)) {
+      // eslint-disable-next-line no-constructor-return
+      return new Range(start, end, step);
+    }
+    invariant(step !== 0, 'Cannot step a Range by 0');
+    start = start || 0;
+    if (end === undefined) {
+      end = Infinity;
+    }
+    step = step === undefined ? 1 : Math.abs(step);
+    if (end < start) {
+      step = -step;
+    }
+    this._start = start;
+    this._end = end;
+    this._step = step;
+    this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
+    if (this.size === 0) {
+      if (EMPTY_RANGE) {
+        // eslint-disable-next-line no-constructor-return
+        return EMPTY_RANGE;
+      }
+      EMPTY_RANGE = this;
+    }
+  }
+
+  if ( IndexedSeq ) Range.__proto__ = IndexedSeq;
+  Range.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+  Range.prototype.constructor = Range;
+
+  Range.prototype.toString = function toString () {
+    if (this.size === 0) {
+      return 'Range []';
+    }
+    return (
+      'Range [ ' +
+      this._start +
+      '...' +
+      this._end +
+      (this._step !== 1 ? ' by ' + this._step : '') +
+      ' ]'
+    );
+  };
+
+  Range.prototype.get = function get (index, notSetValue) {
+    return this.has(index)
+      ? this._start + wrapIndex(this, index) * this._step
+      : notSetValue;
+  };
+
+  Range.prototype.includes = function includes (searchValue) {
+    var possibleIndex = (searchValue - this._start) / this._step;
+    return (
+      possibleIndex >= 0 &&
+      possibleIndex < this.size &&
+      possibleIndex === Math.floor(possibleIndex)
+    );
+  };
+
+  Range.prototype.slice = function slice (begin, end) {
+    if (wholeSlice(begin, end, this.size)) {
+      return this;
+    }
+    begin = resolveBegin(begin, this.size);
+    end = resolveEnd(end, this.size);
+    if (end <= begin) {
+      return new Range(0, 0);
+    }
+    return new Range(
+      this.get(begin, this._end),
+      this.get(end, this._end),
+      this._step
+    );
+  };
+
+  Range.prototype.indexOf = function indexOf (searchValue) {
+    var offsetValue = searchValue - this._start;
+    if (offsetValue % this._step === 0) {
+      var index = offsetValue / this._step;
+      if (index >= 0 && index < this.size) {
+        return index;
+      }
+    }
+    return -1;
+  };
+
+  Range.prototype.lastIndexOf = function lastIndexOf (searchValue) {
+    return this.indexOf(searchValue);
+  };
+
+  Range.prototype.__iterate = function __iterate (fn, reverse) {
+    var size = this.size;
+    var step = this._step;
+    var value = reverse ? this._start + (size - 1) * step : this._start;
+    var i = 0;
+    while (i !== size) {
+      if (fn(value, reverse ? size - ++i : i++, this) === false) {
+        break;
+      }
+      value += reverse ? -step : step;
+    }
+    return i;
+  };
+
+  Range.prototype.__iterator = function __iterator (type, reverse) {
+    var size = this.size;
+    var step = this._step;
+    var value = reverse ? this._start + (size - 1) * step : this._start;
+    var i = 0;
+    return new Iterator(function () {
+      if (i === size) {
+        return iteratorDone();
+      }
+      var v = value;
+      value += reverse ? -step : step;
+      return iteratorValue(type, reverse ? size - ++i : i++, v);
+    });
+  };
+
+  Range.prototype.equals = function equals (other) {
+    return other instanceof Range
+      ? this._start === other._start &&
+          this._end === other._end &&
+          this._step === other._step
+      : deepEqual(this, other);
+  };
+
+  return Range;
+}(IndexedSeq));
+
+var EMPTY_RANGE;
+
+function getIn$1(collection, searchKeyPath, notSetValue) {
+  var keyPath = coerceKeyPath(searchKeyPath);
+  var i = 0;
+  while (i !== keyPath.length) {
+    collection = get(collection, keyPath[i++], NOT_SET);
+    if (collection === NOT_SET) {
+      return notSetValue;
+    }
+  }
+  return collection;
+}
+
+function getIn(searchKeyPath, notSetValue) {
+  return getIn$1(this, searchKeyPath, notSetValue);
+}
+
+function hasIn$1(collection, keyPath) {
+  return getIn$1(collection, keyPath, NOT_SET) !== NOT_SET;
+}
+
+function hasIn(searchKeyPath) {
+  return hasIn$1(this, searchKeyPath);
+}
+
+function toObject() {
+  assertNotInfinite(this.size);
+  var object = {};
+  this.__iterate(function (v, k) {
+    object[k] = v;
+  });
+  return object;
+}
+
+// Note: all of these methods are deprecated.
+Collection.isIterable = isCollection;
+Collection.isKeyed = isKeyed;
+Collection.isIndexed = isIndexed;
+Collection.isAssociative = isAssociative;
+Collection.isOrdered = isOrdered;
+
+Collection.Iterator = Iterator;
+
+mixin(Collection, {
+  // ### Conversion to other types
+
+  toArray: function toArray() {
+    assertNotInfinite(this.size);
+    var array = new Array(this.size || 0);
+    var useTuples = isKeyed(this);
+    var i = 0;
+    this.__iterate(function (v, k) {
+      // Keyed collections produce an array of tuples.
+      array[i++] = useTuples ? [k, v] : v;
+    });
+    return array;
+  },
+
+  toIndexedSeq: function toIndexedSeq() {
+    return new ToIndexedSequence(this);
+  },
+
+  toJS: function toJS$1() {
+    return toJS(this);
+  },
+
+  toKeyedSeq: function toKeyedSeq() {
+    return new ToKeyedSequence(this, true);
+  },
+
+  toMap: function toMap() {
+    // Use Late Binding here to solve the circular dependency.
+    return Map(this.toKeyedSeq());
+  },
+
+  toObject: toObject,
+
+  toOrderedMap: function toOrderedMap() {
+    // Use Late Binding here to solve the circular dependency.
+    return OrderedMap(this.toKeyedSeq());
+  },
+
+  toOrderedSet: function toOrderedSet() {
+    // Use Late Binding here to solve the circular dependency.
+    return OrderedSet(isKeyed(this) ? this.valueSeq() : this);
+  },
+
+  toSet: function toSet() {
+    // Use Late Binding here to solve the circular dependency.
+    return Set(isKeyed(this) ? this.valueSeq() : this);
+  },
+
+  toSetSeq: function toSetSeq() {
+    return new ToSetSequence(this);
+  },
+
+  toSeq: function toSeq() {
+    return isIndexed(this)
+      ? this.toIndexedSeq()
+      : isKeyed(this)
+      ? this.toKeyedSeq()
+      : this.toSetSeq();
+  },
+
+  toStack: function toStack() {
+    // Use Late Binding here to solve the circular dependency.
+    return Stack(isKeyed(this) ? this.valueSeq() : this);
+  },
+
+  toList: function toList() {
+    // Use Late Binding here to solve the circular dependency.
+    return List(isKeyed(this) ? this.valueSeq() : this);
+  },
+
+  // ### Common JavaScript methods and properties
+
+  toString: function toString() {
+    return '[Collection]';
+  },
+
+  __toString: function __toString(head, tail) {
+    if (this.size === 0) {
+      return head + tail;
+    }
+    return (
+      head +
+      ' ' +
+      this.toSeq().map(this.__toStringMapper).join(', ') +
+      ' ' +
+      tail
+    );
+  },
+
+  // ### ES6 Collection methods (ES6 Array and Map)
+
+  concat: function concat() {
+    var values = [], len = arguments.length;
+    while ( len-- ) values[ len ] = arguments[ len ];
+
+    return reify(this, concatFactory(this, values));
+  },
+
+  includes: function includes(searchValue) {
+    return this.some(function (value) { return is(value, searchValue); });
+  },
+
+  entries: function entries() {
+    return this.__iterator(ITERATE_ENTRIES);
+  },
+
+  every: function every(predicate, context) {
+    assertNotInfinite(this.size);
+    var returnValue = true;
+    this.__iterate(function (v, k, c) {
+      if (!predicate.call(context, v, k, c)) {
+        returnValue = false;
+        return false;
+      }
+    });
+    return returnValue;
+  },
+
+  filter: function filter(predicate, context) {
+    return reify(this, filterFactory(this, predicate, context, true));
+  },
+
+  partition: function partition(predicate, context) {
+    return partitionFactory(this, predicate, context);
+  },
+
+  find: function find(predicate, context, notSetValue) {
+    var entry = this.findEntry(predicate, context);
+    return entry ? entry[1] : notSetValue;
+  },
+
+  forEach: function forEach(sideEffect, context) {
+    assertNotInfinite(this.size);
+    return this.__iterate(context ? sideEffect.bind(context) : sideEffect);
+  },
+
+  join: function join(separator) {
+    assertNotInfinite(this.size);
+    separator = separator !== undefined ? '' + separator : ',';
+    var joined = '';
+    var isFirst = true;
+    this.__iterate(function (v) {
+      isFirst ? (isFirst = false) : (joined += separator);
+      joined += v !== null && v !== undefined ? v.toString() : '';
+    });
+    return joined;
+  },
+
+  keys: function keys() {
+    return this.__iterator(ITERATE_KEYS);
+  },
+
+  map: function map(mapper, context) {
+    return reify(this, mapFactory(this, mapper, context));
+  },
+
+  reduce: function reduce$1(reducer, initialReduction, context) {
+    return reduce(
+      this,
+      reducer,
+      initialReduction,
+      context,
+      arguments.length < 2,
+      false
+    );
+  },
+
+  reduceRight: function reduceRight(reducer, initialReduction, context) {
+    return reduce(
+      this,
+      reducer,
+      initialReduction,
+      context,
+      arguments.length < 2,
+      true
+    );
+  },
+
+  reverse: function reverse() {
+    return reify(this, reverseFactory(this, true));
+  },
+
+  slice: function slice(begin, end) {
+    return reify(this, sliceFactory(this, begin, end, true));
+  },
+
+  some: function some(predicate, context) {
+    assertNotInfinite(this.size);
+    var returnValue = false;
+    this.__iterate(function (v, k, c) {
+      if (predicate.call(context, v, k, c)) {
+        returnValue = true;
+        return false;
+      }
+    });
+    return returnValue;
+  },
+
+  sort: function sort(comparator) {
+    return reify(this, sortFactory(this, comparator));
+  },
+
+  values: function values() {
+    return this.__iterator(ITERATE_VALUES);
+  },
+
+  // ### More sequential methods
+
+  butLast: function butLast() {
+    return this.slice(0, -1);
+  },
+
+  isEmpty: function isEmpty() {
+    return this.size !== undefined ? this.size === 0 : !this.some(function () { return true; });
+  },
+
+  count: function count(predicate, context) {
+    return ensureSize(
+      predicate ? this.toSeq().filter(predicate, context) : this
+    );
+  },
+
+  countBy: function countBy(grouper, context) {
+    return countByFactory(this, grouper, context);
+  },
+
+  equals: function equals(other) {
+    return deepEqual(this, other);
+  },
+
+  entrySeq: function entrySeq() {
+    var collection = this;
+    if (collection._cache) {
+      // We cache as an entries array, so we can just return the cache!
+      return new ArraySeq(collection._cache);
+    }
+    var entriesSequence = collection.toSeq().map(entryMapper).toIndexedSeq();
+    entriesSequence.fromEntrySeq = function () { return collection.toSeq(); };
+    return entriesSequence;
+  },
+
+  filterNot: function filterNot(predicate, context) {
+    return this.filter(not(predicate), context);
+  },
+
+  findEntry: function findEntry(predicate, context, notSetValue) {
+    var found = notSetValue;
+    this.__iterate(function (v, k, c) {
+      if (predicate.call(context, v, k, c)) {
+        found = [k, v];
+        return false;
+      }
+    });
+    return found;
+  },
+
+  findKey: function findKey(predicate, context) {
+    var entry = this.findEntry(predicate, context);
+    return entry && entry[0];
+  },
+
+  findLast: function findLast(predicate, context, notSetValue) {
+    return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);
+  },
+
+  findLastEntry: function findLastEntry(predicate, context, notSetValue) {
+    return this.toKeyedSeq()
+      .reverse()
+      .findEntry(predicate, context, notSetValue);
+  },
+
+  findLastKey: function findLastKey(predicate, context) {
+    return this.toKeyedSeq().reverse().findKey(predicate, context);
+  },
+
+  first: function first(notSetValue) {
+    return this.find(returnTrue, null, notSetValue);
+  },
+
+  flatMap: function flatMap(mapper, context) {
+    return reify(this, flatMapFactory(this, mapper, context));
+  },
+
+  flatten: function flatten(depth) {
+    return reify(this, flattenFactory(this, depth, true));
+  },
+
+  fromEntrySeq: function fromEntrySeq() {
+    return new FromEntriesSequence(this);
+  },
+
+  get: function get(searchKey, notSetValue) {
+    return this.find(function (_, key) { return is(key, searchKey); }, undefined, notSetValue);
+  },
+
+  getIn: getIn,
+
+  groupBy: function groupBy(grouper, context) {
+    return groupByFactory(this, grouper, context);
+  },
+
+  has: function has(searchKey) {
+    return this.get(searchKey, NOT_SET) !== NOT_SET;
+  },
+
+  hasIn: hasIn,
+
+  isSubset: function isSubset(iter) {
+    iter = typeof iter.includes === 'function' ? iter : Collection(iter);
+    return this.every(function (value) { return iter.includes(value); });
+  },
+
+  isSuperset: function isSuperset(iter) {
+    iter = typeof iter.isSubset === 'function' ? iter : Collection(iter);
+    return iter.isSubset(this);
+  },
+
+  keyOf: function keyOf(searchValue) {
+    return this.findKey(function (value) { return is(value, searchValue); });
+  },
+
+  keySeq: function keySeq() {
+    return this.toSeq().map(keyMapper).toIndexedSeq();
+  },
+
+  last: function last(notSetValue) {
+    return this.toSeq().reverse().first(notSetValue);
+  },
+
+  lastKeyOf: function lastKeyOf(searchValue) {
+    return this.toKeyedSeq().reverse().keyOf(searchValue);
+  },
+
+  max: function max(comparator) {
+    return maxFactory(this, comparator);
+  },
+
+  maxBy: function maxBy(mapper, comparator) {
+    return maxFactory(this, comparator, mapper);
+  },
+
+  min: function min(comparator) {
+    return maxFactory(
+      this,
+      comparator ? neg(comparator) : defaultNegComparator
+    );
+  },
+
+  minBy: function minBy(mapper, comparator) {
+    return maxFactory(
+      this,
+      comparator ? neg(comparator) : defaultNegComparator,
+      mapper
+    );
+  },
+
+  rest: function rest() {
+    return this.slice(1);
+  },
+
+  skip: function skip(amount) {
+    return amount === 0 ? this : this.slice(Math.max(0, amount));
+  },
+
+  skipLast: function skipLast(amount) {
+    return amount === 0 ? this : this.slice(0, -Math.max(0, amount));
+  },
+
+  skipWhile: function skipWhile(predicate, context) {
+    return reify(this, skipWhileFactory(this, predicate, context, true));
+  },
+
+  skipUntil: function skipUntil(predicate, context) {
+    return this.skipWhile(not(predicate), context);
+  },
+
+  sortBy: function sortBy(mapper, comparator) {
+    return reify(this, sortFactory(this, comparator, mapper));
+  },
+
+  take: function take(amount) {
+    return this.slice(0, Math.max(0, amount));
+  },
+
+  takeLast: function takeLast(amount) {
+    return this.slice(-Math.max(0, amount));
+  },
+
+  takeWhile: function takeWhile(predicate, context) {
+    return reify(this, takeWhileFactory(this, predicate, context));
+  },
+
+  takeUntil: function takeUntil(predicate, context) {
+    return this.takeWhile(not(predicate), context);
+  },
+
+  update: function update(fn) {
+    return fn(this);
+  },
+
+  valueSeq: function valueSeq() {
+    return this.toIndexedSeq();
+  },
+
+  // ### Hashable Object
+
+  hashCode: function hashCode() {
+    return this.__hash || (this.__hash = hashCollection(this));
+  },
+
+  // ### Internal
+
+  // abstract __iterate(fn, reverse)
+
+  // abstract __iterator(type, reverse)
+});
+
+var CollectionPrototype = Collection.prototype;
+CollectionPrototype[IS_COLLECTION_SYMBOL] = true;
+CollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.values;
+CollectionPrototype.toJSON = CollectionPrototype.toArray;
+CollectionPrototype.__toStringMapper = quoteString;
+CollectionPrototype.inspect = CollectionPrototype.toSource = function () {
+  return this.toString();
+};
+CollectionPrototype.chain = CollectionPrototype.flatMap;
+CollectionPrototype.contains = CollectionPrototype.includes;
+
+mixin(KeyedCollection, {
+  // ### More sequential methods
+
+  flip: function flip() {
+    return reify(this, flipFactory(this));
+  },
+
+  mapEntries: function mapEntries(mapper, context) {
+    var this$1$1 = this;
+
+    var iterations = 0;
+    return reify(
+      this,
+      this.toSeq()
+        .map(function (v, k) { return mapper.call(context, [k, v], iterations++, this$1$1); })
+        .fromEntrySeq()
+    );
+  },
+
+  mapKeys: function mapKeys(mapper, context) {
+    var this$1$1 = this;
+
+    return reify(
+      this,
+      this.toSeq()
+        .flip()
+        .map(function (k, v) { return mapper.call(context, k, v, this$1$1); })
+        .flip()
+    );
+  },
+});
+
+var KeyedCollectionPrototype = KeyedCollection.prototype;
+KeyedCollectionPrototype[IS_KEYED_SYMBOL] = true;
+KeyedCollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.entries;
+KeyedCollectionPrototype.toJSON = toObject;
+KeyedCollectionPrototype.__toStringMapper = function (v, k) { return quoteString(k) + ': ' + quoteString(v); };
+
+mixin(IndexedCollection, {
+  // ### Conversion to other types
+
+  toKeyedSeq: function toKeyedSeq() {
+    return new ToKeyedSequence(this, false);
+  },
+
+  // ### ES6 Collection methods (ES6 Array and Map)
+
+  filter: function filter(predicate, context) {
+    return reify(this, filterFactory(this, predicate, context, false));
+  },
+
+  findIndex: function findIndex(predicate, context) {
+    var entry = this.findEntry(predicate, context);
+    return entry ? entry[0] : -1;
+  },
+
+  indexOf: function indexOf(searchValue) {
+    var key = this.keyOf(searchValue);
+    return key === undefined ? -1 : key;
+  },
+
+  lastIndexOf: function lastIndexOf(searchValue) {
+    var key = this.lastKeyOf(searchValue);
+    return key === undefined ? -1 : key;
+  },
+
+  reverse: function reverse() {
+    return reify(this, reverseFactory(this, false));
+  },
+
+  slice: function slice(begin, end) {
+    return reify(this, sliceFactory(this, begin, end, false));
+  },
+
+  splice: function splice(index, removeNum /*, ...values*/) {
+    var numArgs = arguments.length;
+    removeNum = Math.max(removeNum || 0, 0);
+    if (numArgs === 0 || (numArgs === 2 && !removeNum)) {
+      return this;
+    }
+    // If index is negative, it should resolve relative to the size of the
+    // collection. However size may be expensive to compute if not cached, so
+    // only call count() if the number is in fact negative.
+    index = resolveBegin(index, index < 0 ? this.count() : this.size);
+    var spliced = this.slice(0, index);
+    return reify(
+      this,
+      numArgs === 1
+        ? spliced
+        : spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))
+    );
+  },
+
+  // ### More collection methods
+
+  findLastIndex: function findLastIndex(predicate, context) {
+    var entry = this.findLastEntry(predicate, context);
+    return entry ? entry[0] : -1;
+  },
+
+  first: function first(notSetValue) {
+    return this.get(0, notSetValue);
+  },
+
+  flatten: function flatten(depth) {
+    return reify(this, flattenFactory(this, depth, false));
+  },
+
+  get: function get(index, notSetValue) {
+    index = wrapIndex(this, index);
+    return index < 0 ||
+      this.size === Infinity ||
+      (this.size !== undefined && index > this.size)
+      ? notSetValue
+      : this.find(function (_, key) { return key === index; }, undefined, notSetValue);
+  },
+
+  has: function has(index) {
+    index = wrapIndex(this, index);
+    return (
+      index >= 0 &&
+      (this.size !== undefined
+        ? this.size === Infinity || index < this.size
+        : this.indexOf(index) !== -1)
+    );
+  },
+
+  interpose: function interpose(separator) {
+    return reify(this, interposeFactory(this, separator));
+  },
+
+  interleave: function interleave(/*...collections*/) {
+    var collections = [this].concat(arrCopy(arguments));
+    var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, collections);
+    var interleaved = zipped.flatten(true);
+    if (zipped.size) {
+      interleaved.size = zipped.size * collections.length;
+    }
+    return reify(this, interleaved);
+  },
+
+  keySeq: function keySeq() {
+    return Range(0, this.size);
+  },
+
+  last: function last(notSetValue) {
+    return this.get(-1, notSetValue);
+  },
+
+  skipWhile: function skipWhile(predicate, context) {
+    return reify(this, skipWhileFactory(this, predicate, context, false));
+  },
+
+  zip: function zip(/*, ...collections */) {
+    var collections = [this].concat(arrCopy(arguments));
+    return reify(this, zipWithFactory(this, defaultZipper, collections));
+  },
+
+  zipAll: function zipAll(/*, ...collections */) {
+    var collections = [this].concat(arrCopy(arguments));
+    return reify(this, zipWithFactory(this, defaultZipper, collections, true));
+  },
+
+  zipWith: function zipWith(zipper /*, ...collections */) {
+    var collections = arrCopy(arguments);
+    collections[0] = this;
+    return reify(this, zipWithFactory(this, zipper, collections));
+  },
+});
+
+var IndexedCollectionPrototype = IndexedCollection.prototype;
+IndexedCollectionPrototype[IS_INDEXED_SYMBOL] = true;
+IndexedCollectionPrototype[IS_ORDERED_SYMBOL] = true;
+
+mixin(SetCollection, {
+  // ### ES6 Collection methods (ES6 Array and Map)
+
+  get: function get(value, notSetValue) {
+    return this.has(value) ? value : notSetValue;
+  },
+
+  includes: function includes(value) {
+    return this.has(value);
+  },
+
+  // ### More sequential methods
+
+  keySeq: function keySeq() {
+    return this.valueSeq();
+  },
+});
+
+var SetCollectionPrototype = SetCollection.prototype;
+SetCollectionPrototype.has = CollectionPrototype.includes;
+SetCollectionPrototype.contains = SetCollectionPrototype.includes;
+SetCollectionPrototype.keys = SetCollectionPrototype.values;
+
+// Mixin subclasses
+
+mixin(KeyedSeq, KeyedCollectionPrototype);
+mixin(IndexedSeq, IndexedCollectionPrototype);
+mixin(SetSeq, SetCollectionPrototype);
+
+// #pragma Helper functions
+
+function reduce(collection, reducer, reduction, context, useFirst, reverse) {
+  assertNotInfinite(collection.size);
+  collection.__iterate(function (v, k, c) {
+    if (useFirst) {
+      useFirst = false;
+      reduction = v;
+    } else {
+      reduction = reducer.call(context, reduction, v, k, c);
+    }
+  }, reverse);
+  return reduction;
+}
+
+function keyMapper(v, k) {
+  return k;
+}
+
+function entryMapper(v, k) {
+  return [k, v];
+}
+
+function not(predicate) {
+  return function () {
+    return !predicate.apply(this, arguments);
+  };
+}
+
+function neg(predicate) {
+  return function () {
+    return -predicate.apply(this, arguments);
+  };
+}
+
+function defaultZipper() {
+  return arrCopy(arguments);
+}
+
+function defaultNegComparator(a, b) {
+  return a < b ? 1 : a > b ? -1 : 0;
+}
+
+function hashCollection(collection) {
+  if (collection.size === Infinity) {
+    return 0;
+  }
+  var ordered = isOrdered(collection);
+  var keyed = isKeyed(collection);
+  var h = ordered ? 1 : 0;
+  var size = collection.__iterate(
+    keyed
+      ? ordered
+        ? function (v, k) {
+            h = (31 * h + hashMerge(hash(v), hash(k))) | 0;
+          }
+        : function (v, k) {
+            h = (h + hashMerge(hash(v), hash(k))) | 0;
+          }
+      : ordered
+      ? function (v) {
+          h = (31 * h + hash(v)) | 0;
+        }
+      : function (v) {
+          h = (h + hash(v)) | 0;
+        }
+  );
+  return murmurHashOfSize(size, h);
+}
+
+function murmurHashOfSize(size, h) {
+  h = imul(h, 0xcc9e2d51);
+  h = imul((h << 15) | (h >>> -15), 0x1b873593);
+  h = imul((h << 13) | (h >>> -13), 5);
+  h = ((h + 0xe6546b64) | 0) ^ size;
+  h = imul(h ^ (h >>> 16), 0x85ebca6b);
+  h = imul(h ^ (h >>> 13), 0xc2b2ae35);
+  h = smi(h ^ (h >>> 16));
+  return h;
+}
+
+function hashMerge(a, b) {
+  return (a ^ (b + 0x9e3779b9 + (a << 6) + (a >> 2))) | 0; // int
+}
+
+var OrderedSet = /*@__PURE__*/(function (Set) {
+  function OrderedSet(value) {
+    // eslint-disable-next-line no-constructor-return
+    return value === undefined || value === null
+      ? emptyOrderedSet()
+      : isOrderedSet(value)
+      ? value
+      : emptyOrderedSet().withMutations(function (set) {
+          var iter = SetCollection(value);
+          assertNotInfinite(iter.size);
+          iter.forEach(function (v) { return set.add(v); });
+        });
+  }
+
+  if ( Set ) OrderedSet.__proto__ = Set;
+  OrderedSet.prototype = Object.create( Set && Set.prototype );
+  OrderedSet.prototype.constructor = OrderedSet;
+
+  OrderedSet.of = function of (/*...values*/) {
+    return this(arguments);
+  };
+
+  OrderedSet.fromKeys = function fromKeys (value) {
+    return this(KeyedCollection(value).keySeq());
+  };
+
+  OrderedSet.prototype.toString = function toString () {
+    return this.__toString('OrderedSet {', '}');
+  };
+
+  return OrderedSet;
+}(Set));
+
+OrderedSet.isOrderedSet = isOrderedSet;
+
+var OrderedSetPrototype = OrderedSet.prototype;
+OrderedSetPrototype[IS_ORDERED_SYMBOL] = true;
+OrderedSetPrototype.zip = IndexedCollectionPrototype.zip;
+OrderedSetPrototype.zipWith = IndexedCollectionPrototype.zipWith;
+OrderedSetPrototype.zipAll = IndexedCollectionPrototype.zipAll;
+
+OrderedSetPrototype.__empty = emptyOrderedSet;
+OrderedSetPrototype.__make = makeOrderedSet;
+
+function makeOrderedSet(map, ownerID) {
+  var set = Object.create(OrderedSetPrototype);
+  set.size = map ? map.size : 0;
+  set._map = map;
+  set.__ownerID = ownerID;
+  return set;
+}
+
+var EMPTY_ORDERED_SET;
+function emptyOrderedSet() {
+  return (
+    EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()))
+  );
+}
+
+var PairSorting = {
+  LeftThenRight: -1,
+  RightThenLeft: +1,
+};
+
+function throwOnInvalidDefaultValues(defaultValues) {
+  if (isRecord(defaultValues)) {
+    throw new Error(
+      'Can not call `Record` with an immutable Record as default values. Use a plain javascript object instead.'
+    );
+  }
+
+  if (isImmutable(defaultValues)) {
+    throw new Error(
+      'Can not call `Record` with an immutable Collection as default values. Use a plain javascript object instead.'
+    );
+  }
+
+  if (defaultValues === null || typeof defaultValues !== 'object') {
+    throw new Error(
+      'Can not call `Record` with a non-object as default values. Use a plain javascript object instead.'
+    );
+  }
+}
+
+var Record = function Record(defaultValues, name) {
+  var hasInitialized;
+
+  throwOnInvalidDefaultValues(defaultValues);
+
+  var RecordType = function Record(values) {
+    var this$1$1 = this;
+
+    if (values instanceof RecordType) {
+      return values;
+    }
+    if (!(this instanceof RecordType)) {
+      return new RecordType(values);
+    }
+    if (!hasInitialized) {
+      hasInitialized = true;
+      var keys = Object.keys(defaultValues);
+      var indices = (RecordTypePrototype._indices = {});
+      // Deprecated: left to attempt not to break any external code which
+      // relies on a ._name property existing on record instances.
+      // Use Record.getDescriptiveName() instead
+      RecordTypePrototype._name = name;
+      RecordTypePrototype._keys = keys;
+      RecordTypePrototype._defaultValues = defaultValues;
+      for (var i = 0; i < keys.length; i++) {
+        var propName = keys[i];
+        indices[propName] = i;
+        if (RecordTypePrototype[propName]) {
+          /* eslint-disable no-console */
+          typeof console === 'object' &&
+            console.warn &&
+            console.warn(
+              'Cannot define ' +
+                recordName(this) +
+                ' with property "' +
+                propName +
+                '" since that property name is part of the Record API.'
+            );
+          /* eslint-enable no-console */
+        } else {
+          setProp(RecordTypePrototype, propName);
+        }
+      }
+    }
+    this.__ownerID = undefined;
+    this._values = List().withMutations(function (l) {
+      l.setSize(this$1$1._keys.length);
+      KeyedCollection(values).forEach(function (v, k) {
+        l.set(this$1$1._indices[k], v === this$1$1._defaultValues[k] ? undefined : v);
+      });
+    });
+    return this;
+  };
+
+  var RecordTypePrototype = (RecordType.prototype =
+    Object.create(RecordPrototype));
+  RecordTypePrototype.constructor = RecordType;
+
+  if (name) {
+    RecordType.displayName = name;
+  }
+
+  // eslint-disable-next-line no-constructor-return
+  return RecordType;
+};
+
+Record.prototype.toString = function toString () {
+  var str = recordName(this) + ' { ';
+  var keys = this._keys;
+  var k;
+  for (var i = 0, l = keys.length; i !== l; i++) {
+    k = keys[i];
+    str += (i ? ', ' : '') + k + ': ' + quoteString(this.get(k));
+  }
+  return str + ' }';
+};
+
+Record.prototype.equals = function equals (other) {
+  return (
+    this === other ||
+    (isRecord(other) && recordSeq(this).equals(recordSeq(other)))
+  );
+};
+
+Record.prototype.hashCode = function hashCode () {
+  return recordSeq(this).hashCode();
+};
+
+// @pragma Access
+
+Record.prototype.has = function has (k) {
+  return this._indices.hasOwnProperty(k);
+};
+
+Record.prototype.get = function get (k, notSetValue) {
+  if (!this.has(k)) {
+    return notSetValue;
+  }
+  var index = this._indices[k];
+  var value = this._values.get(index);
+  return value === undefined ? this._defaultValues[k] : value;
+};
+
+// @pragma Modification
+
+Record.prototype.set = function set (k, v) {
+  if (this.has(k)) {
+    var newValues = this._values.set(
+      this._indices[k],
+      v === this._defaultValues[k] ? undefined : v
+    );
+    if (newValues !== this._values && !this.__ownerID) {
+      return makeRecord(this, newValues);
+    }
+  }
+  return this;
+};
+
+Record.prototype.remove = function remove (k) {
+  return this.set(k);
+};
+
+Record.prototype.clear = function clear () {
+  var newValues = this._values.clear().setSize(this._keys.length);
+
+  return this.__ownerID ? this : makeRecord(this, newValues);
+};
+
+Record.prototype.wasAltered = function wasAltered () {
+  return this._values.wasAltered();
+};
+
+Record.prototype.toSeq = function toSeq () {
+  return recordSeq(this);
+};
+
+Record.prototype.toJS = function toJS$1 () {
+  return toJS(this);
+};
+
+Record.prototype.entries = function entries () {
+  return this.__iterator(ITERATE_ENTRIES);
+};
+
+Record.prototype.__iterator = function __iterator (type, reverse) {
+  return recordSeq(this).__iterator(type, reverse);
+};
+
+Record.prototype.__iterate = function __iterate (fn, reverse) {
+  return recordSeq(this).__iterate(fn, reverse);
+};
+
+Record.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+  if (ownerID === this.__ownerID) {
+    return this;
+  }
+  var newValues = this._values.__ensureOwner(ownerID);
+  if (!ownerID) {
+    this.__ownerID = ownerID;
+    this._values = newValues;
+    return this;
+  }
+  return makeRecord(this, newValues, ownerID);
+};
+
+Record.isRecord = isRecord;
+Record.getDescriptiveName = recordName;
+var RecordPrototype = Record.prototype;
+RecordPrototype[IS_RECORD_SYMBOL] = true;
+RecordPrototype[DELETE] = RecordPrototype.remove;
+RecordPrototype.deleteIn = RecordPrototype.removeIn = deleteIn;
+RecordPrototype.getIn = getIn;
+RecordPrototype.hasIn = CollectionPrototype.hasIn;
+RecordPrototype.merge = merge$1;
+RecordPrototype.mergeWith = mergeWith$1;
+RecordPrototype.mergeIn = mergeIn;
+RecordPrototype.mergeDeep = mergeDeep;
+RecordPrototype.mergeDeepWith = mergeDeepWith;
+RecordPrototype.mergeDeepIn = mergeDeepIn;
+RecordPrototype.setIn = setIn;
+RecordPrototype.update = update;
+RecordPrototype.updateIn = updateIn;
+RecordPrototype.withMutations = withMutations;
+RecordPrototype.asMutable = asMutable;
+RecordPrototype.asImmutable = asImmutable;
+RecordPrototype[ITERATOR_SYMBOL] = RecordPrototype.entries;
+RecordPrototype.toJSON = RecordPrototype.toObject =
+  CollectionPrototype.toObject;
+RecordPrototype.inspect = RecordPrototype.toSource = function () {
+  return this.toString();
+};
+
+function makeRecord(likeRecord, values, ownerID) {
+  var record = Object.create(Object.getPrototypeOf(likeRecord));
+  record._values = values;
+  record.__ownerID = ownerID;
+  return record;
+}
+
+function recordName(record) {
+  return record.constructor.displayName || record.constructor.name || 'Record';
+}
+
+function recordSeq(record) {
+  return keyedSeqFromValue(record._keys.map(function (k) { return [k, record.get(k)]; }));
+}
+
+function setProp(prototype, name) {
+  try {
+    Object.defineProperty(prototype, name, {
+      get: function () {
+        return this.get(name);
+      },
+      set: function (value) {
+        invariant(this.__ownerID, 'Cannot set on an immutable record.');
+        this.set(name, value);
+      },
+    });
+  } catch (error) {
+    // Object.defineProperty failed. Probably IE8.
+  }
+}
+
+/**
+ * Returns a lazy Seq of `value` repeated `times` times. When `times` is
+ * undefined, returns an infinite sequence of `value`.
+ */
+var Repeat = /*@__PURE__*/(function (IndexedSeq) {
+  function Repeat(value, times) {
+    if (!(this instanceof Repeat)) {
+      // eslint-disable-next-line no-constructor-return
+      return new Repeat(value, times);
+    }
+    this._value = value;
+    this.size = times === undefined ? Infinity : Math.max(0, times);
+    if (this.size === 0) {
+      if (EMPTY_REPEAT) {
+        // eslint-disable-next-line no-constructor-return
+        return EMPTY_REPEAT;
+      }
+      EMPTY_REPEAT = this;
+    }
+  }
+
+  if ( IndexedSeq ) Repeat.__proto__ = IndexedSeq;
+  Repeat.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+  Repeat.prototype.constructor = Repeat;
+
+  Repeat.prototype.toString = function toString () {
+    if (this.size === 0) {
+      return 'Repeat []';
+    }
+    return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
+  };
+
+  Repeat.prototype.get = function get (index, notSetValue) {
+    return this.has(index) ? this._value : notSetValue;
+  };
+
+  Repeat.prototype.includes = function includes (searchValue) {
+    return is(this._value, searchValue);
+  };
+
+  Repeat.prototype.slice = function slice (begin, end) {
+    var size = this.size;
+    return wholeSlice(begin, end, size)
+      ? this
+      : new Repeat(
+          this._value,
+          resolveEnd(end, size) - resolveBegin(begin, size)
+        );
+  };
+
+  Repeat.prototype.reverse = function reverse () {
+    return this;
+  };
+
+  Repeat.prototype.indexOf = function indexOf (searchValue) {
+    if (is(this._value, searchValue)) {
+      return 0;
+    }
+    return -1;
+  };
+
+  Repeat.prototype.lastIndexOf = function lastIndexOf (searchValue) {
+    if (is(this._value, searchValue)) {
+      return this.size;
+    }
+    return -1;
+  };
+
+  Repeat.prototype.__iterate = function __iterate (fn, reverse) {
+    var size = this.size;
+    var i = 0;
+    while (i !== size) {
+      if (fn(this._value, reverse ? size - ++i : i++, this) === false) {
+        break;
+      }
+    }
+    return i;
+  };
+
+  Repeat.prototype.__iterator = function __iterator (type, reverse) {
+    var this$1$1 = this;
+
+    var size = this.size;
+    var i = 0;
+    return new Iterator(function () { return i === size
+        ? iteratorDone()
+        : iteratorValue(type, reverse ? size - ++i : i++, this$1$1._value); }
+    );
+  };
+
+  Repeat.prototype.equals = function equals (other) {
+    return other instanceof Repeat
+      ? is(this._value, other._value)
+      : deepEqual(this, other);
+  };
+
+  return Repeat;
+}(IndexedSeq));
+
+var EMPTY_REPEAT;
+
+function fromJS(value, converter) {
+  return fromJSWith(
+    [],
+    converter || defaultConverter,
+    value,
+    '',
+    converter && converter.length > 2 ? [] : undefined,
+    { '': value }
+  );
+}
+
+function fromJSWith(stack, converter, value, key, keyPath, parentValue) {
+  if (
+    typeof value !== 'string' &&
+    !isImmutable(value) &&
+    (isArrayLike(value) || hasIterator(value) || isPlainObject(value))
+  ) {
+    if (~stack.indexOf(value)) {
+      throw new TypeError('Cannot convert circular structure to Immutable');
+    }
+    stack.push(value);
+    keyPath && key !== '' && keyPath.push(key);
+    var converted = converter.call(
+      parentValue,
+      key,
+      Seq(value).map(function (v, k) { return fromJSWith(stack, converter, v, k, keyPath, value); }
+      ),
+      keyPath && keyPath.slice()
+    );
+    stack.pop();
+    keyPath && keyPath.pop();
+    return converted;
+  }
+  return value;
+}
+
+function defaultConverter(k, v) {
+  // Effectively the opposite of "Collection.toSeq()"
+  return isIndexed(v) ? v.toList() : isKeyed(v) ? v.toMap() : v.toSet();
+}
+
+var version = "4.3.6";
+
+var Immutable = {
+  version: version,
+
+  Collection: Collection,
+  // Note: Iterable is deprecated
+  Iterable: Collection,
+
+  Seq: Seq,
+  Map: Map,
+  OrderedMap: OrderedMap,
+  List: List,
+  Stack: Stack,
+  Set: Set,
+  OrderedSet: OrderedSet,
+  PairSorting: PairSorting,
+
+  Record: Record,
+  Range: Range,
+  Repeat: Repeat,
+
+  is: is,
+  fromJS: fromJS,
+  hash: hash,
+
+  isImmutable: isImmutable,
+  isCollection: isCollection,
+  isKeyed: isKeyed,
+  isIndexed: isIndexed,
+  isAssociative: isAssociative,
+  isOrdered: isOrdered,
+  isValueObject: isValueObject,
+  isPlainObject: isPlainObject,
+  isSeq: isSeq,
+  isList: isList,
+  isMap: isMap,
+  isOrderedMap: isOrderedMap,
+  isStack: isStack,
+  isSet: isSet,
+  isOrderedSet: isOrderedSet,
+  isRecord: isRecord,
+
+  get: get,
+  getIn: getIn$1,
+  has: has,
+  hasIn: hasIn$1,
+  merge: merge,
+  mergeDeep: mergeDeep$1,
+  mergeWith: mergeWith,
+  mergeDeepWith: mergeDeepWith$1,
+  remove: remove,
+  removeIn: removeIn,
+  set: set,
+  setIn: setIn$1,
+  update: update$1,
+  updateIn: updateIn$1,
+};
+
+// Note: Iterable is deprecated
+var Iterable = Collection;
+
+export default Immutable;
+export { Collection, Iterable, List, Map, OrderedMap, OrderedSet, PairSorting, Range, Record, Repeat, Seq, Set, Stack, fromJS, get, getIn$1 as getIn, has, hasIn$1 as hasIn, hash, is, isAssociative, isCollection, isImmutable, isIndexed, isKeyed, isList, isMap, isOrdered, isOrderedMap, isOrderedSet, isPlainObject, isRecord, isSeq, isSet, isStack, isValueObject, merge, mergeDeep$1 as mergeDeep, mergeDeepWith$1 as mergeDeepWith, mergeWith, remove, removeIn, set, setIn$1 as setIn, update$1 as update, updateIn$1 as updateIn, version };
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.js b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.js
new file mode 100644
index 00000000..13ba74bf
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.js
@@ -0,0 +1,6044 @@
+/**
+ * MIT License
+ * 
+ * Copyright (c) 2014-present, Lee Byron and other contributors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Immutable = {}));
+}(this, (function (exports) { 'use strict';
+
+  var DELETE = 'delete';
+
+  // Constants describing the size of trie nodes.
+  var SHIFT = 5; // Resulted in best performance after ______?
+  var SIZE = 1 << SHIFT;
+  var MASK = SIZE - 1;
+
+  // A consistent shared value representing "not set" which equals nothing other
+  // than itself, and nothing that could be provided externally.
+  var NOT_SET = {};
+
+  // Boolean references, Rough equivalent of `bool &`.
+  function MakeRef() {
+    return { value: false };
+  }
+
+  function SetRef(ref) {
+    if (ref) {
+      ref.value = true;
+    }
+  }
+
+  // A function which returns a value representing an "owner" for transient writes
+  // to tries. The return value will only ever equal itself, and will not equal
+  // the return of any subsequent call of this function.
+  function OwnerID() {}
+
+  function ensureSize(iter) {
+    if (iter.size === undefined) {
+      iter.size = iter.__iterate(returnTrue);
+    }
+    return iter.size;
+  }
+
+  function wrapIndex(iter, index) {
+    // This implements "is array index" which the ECMAString spec defines as:
+    //
+    //     A String property name P is an array index if and only if
+    //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
+    //     to 2^32−1.
+    //
+    // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
+    if (typeof index !== 'number') {
+      var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
+      if ('' + uint32Index !== index || uint32Index === 4294967295) {
+        return NaN;
+      }
+      index = uint32Index;
+    }
+    return index < 0 ? ensureSize(iter) + index : index;
+  }
+
+  function returnTrue() {
+    return true;
+  }
+
+  function wholeSlice(begin, end, size) {
+    return (
+      ((begin === 0 && !isNeg(begin)) ||
+        (size !== undefined && begin <= -size)) &&
+      (end === undefined || (size !== undefined && end >= size))
+    );
+  }
+
+  function resolveBegin(begin, size) {
+    return resolveIndex(begin, size, 0);
+  }
+
+  function resolveEnd(end, size) {
+    return resolveIndex(end, size, size);
+  }
+
+  function resolveIndex(index, size, defaultIndex) {
+    // Sanitize indices using this shorthand for ToInt32(argument)
+    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
+    return index === undefined
+      ? defaultIndex
+      : isNeg(index)
+      ? size === Infinity
+        ? size
+        : Math.max(0, size + index) | 0
+      : size === undefined || size === index
+      ? index
+      : Math.min(size, index) | 0;
+  }
+
+  function isNeg(value) {
+    // Account for -0 which is negative, but not less than 0.
+    return value < 0 || (value === 0 && 1 / value === -Infinity);
+  }
+
+  var IS_COLLECTION_SYMBOL = '@@__IMMUTABLE_ITERABLE__@@';
+
+  function isCollection(maybeCollection) {
+    return Boolean(maybeCollection && maybeCollection[IS_COLLECTION_SYMBOL]);
+  }
+
+  var IS_KEYED_SYMBOL = '@@__IMMUTABLE_KEYED__@@';
+
+  function isKeyed(maybeKeyed) {
+    return Boolean(maybeKeyed && maybeKeyed[IS_KEYED_SYMBOL]);
+  }
+
+  var IS_INDEXED_SYMBOL = '@@__IMMUTABLE_INDEXED__@@';
+
+  function isIndexed(maybeIndexed) {
+    return Boolean(maybeIndexed && maybeIndexed[IS_INDEXED_SYMBOL]);
+  }
+
+  function isAssociative(maybeAssociative) {
+    return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
+  }
+
+  var Collection = function Collection(value) {
+    // eslint-disable-next-line no-constructor-return
+    return isCollection(value) ? value : Seq(value);
+  };
+
+  var KeyedCollection = /*@__PURE__*/(function (Collection) {
+    function KeyedCollection(value) {
+      // eslint-disable-next-line no-constructor-return
+      return isKeyed(value) ? value : KeyedSeq(value);
+    }
+
+    if ( Collection ) KeyedCollection.__proto__ = Collection;
+    KeyedCollection.prototype = Object.create( Collection && Collection.prototype );
+    KeyedCollection.prototype.constructor = KeyedCollection;
+
+    return KeyedCollection;
+  }(Collection));
+
+  var IndexedCollection = /*@__PURE__*/(function (Collection) {
+    function IndexedCollection(value) {
+      // eslint-disable-next-line no-constructor-return
+      return isIndexed(value) ? value : IndexedSeq(value);
+    }
+
+    if ( Collection ) IndexedCollection.__proto__ = Collection;
+    IndexedCollection.prototype = Object.create( Collection && Collection.prototype );
+    IndexedCollection.prototype.constructor = IndexedCollection;
+
+    return IndexedCollection;
+  }(Collection));
+
+  var SetCollection = /*@__PURE__*/(function (Collection) {
+    function SetCollection(value) {
+      // eslint-disable-next-line no-constructor-return
+      return isCollection(value) && !isAssociative(value) ? value : SetSeq(value);
+    }
+
+    if ( Collection ) SetCollection.__proto__ = Collection;
+    SetCollection.prototype = Object.create( Collection && Collection.prototype );
+    SetCollection.prototype.constructor = SetCollection;
+
+    return SetCollection;
+  }(Collection));
+
+  Collection.Keyed = KeyedCollection;
+  Collection.Indexed = IndexedCollection;
+  Collection.Set = SetCollection;
+
+  var IS_SEQ_SYMBOL = '@@__IMMUTABLE_SEQ__@@';
+
+  function isSeq(maybeSeq) {
+    return Boolean(maybeSeq && maybeSeq[IS_SEQ_SYMBOL]);
+  }
+
+  var IS_RECORD_SYMBOL = '@@__IMMUTABLE_RECORD__@@';
+
+  function isRecord(maybeRecord) {
+    return Boolean(maybeRecord && maybeRecord[IS_RECORD_SYMBOL]);
+  }
+
+  function isImmutable(maybeImmutable) {
+    return isCollection(maybeImmutable) || isRecord(maybeImmutable);
+  }
+
+  var IS_ORDERED_SYMBOL = '@@__IMMUTABLE_ORDERED__@@';
+
+  function isOrdered(maybeOrdered) {
+    return Boolean(maybeOrdered && maybeOrdered[IS_ORDERED_SYMBOL]);
+  }
+
+  var ITERATE_KEYS = 0;
+  var ITERATE_VALUES = 1;
+  var ITERATE_ENTRIES = 2;
+
+  var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+  var FAUX_ITERATOR_SYMBOL = '@@iterator';
+
+  var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;
+
+  var Iterator = function Iterator(next) {
+    this.next = next;
+  };
+
+  Iterator.prototype.toString = function toString () {
+    return '[Iterator]';
+  };
+
+  Iterator.KEYS = ITERATE_KEYS;
+  Iterator.VALUES = ITERATE_VALUES;
+  Iterator.ENTRIES = ITERATE_ENTRIES;
+
+  Iterator.prototype.inspect = Iterator.prototype.toSource = function () {
+    return this.toString();
+  };
+  Iterator.prototype[ITERATOR_SYMBOL] = function () {
+    return this;
+  };
+
+  function iteratorValue(type, k, v, iteratorResult) {
+    var value = type === 0 ? k : type === 1 ? v : [k, v];
+    iteratorResult
+      ? (iteratorResult.value = value)
+      : (iteratorResult = {
+          value: value,
+          done: false,
+        });
+    return iteratorResult;
+  }
+
+  function iteratorDone() {
+    return { value: undefined, done: true };
+  }
+
+  function hasIterator(maybeIterable) {
+    if (Array.isArray(maybeIterable)) {
+      // IE11 trick as it does not support `Symbol.iterator`
+      return true;
+    }
+
+    return !!getIteratorFn(maybeIterable);
+  }
+
+  function isIterator(maybeIterator) {
+    return maybeIterator && typeof maybeIterator.next === 'function';
+  }
+
+  function getIterator(iterable) {
+    var iteratorFn = getIteratorFn(iterable);
+    return iteratorFn && iteratorFn.call(iterable);
+  }
+
+  function getIteratorFn(iterable) {
+    var iteratorFn =
+      iterable &&
+      ((REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
+        iterable[FAUX_ITERATOR_SYMBOL]);
+    if (typeof iteratorFn === 'function') {
+      return iteratorFn;
+    }
+  }
+
+  function isEntriesIterable(maybeIterable) {
+    var iteratorFn = getIteratorFn(maybeIterable);
+    return iteratorFn && iteratorFn === maybeIterable.entries;
+  }
+
+  function isKeysIterable(maybeIterable) {
+    var iteratorFn = getIteratorFn(maybeIterable);
+    return iteratorFn && iteratorFn === maybeIterable.keys;
+  }
+
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+  function isArrayLike(value) {
+    if (Array.isArray(value) || typeof value === 'string') {
+      return true;
+    }
+
+    return (
+      value &&
+      typeof value === 'object' &&
+      Number.isInteger(value.length) &&
+      value.length >= 0 &&
+      (value.length === 0
+        ? // Only {length: 0} is considered Array-like.
+          Object.keys(value).length === 1
+        : // An object is only Array-like if it has a property where the last value
+          // in the array-like may be found (which could be undefined).
+          value.hasOwnProperty(value.length - 1))
+    );
+  }
+
+  var Seq = /*@__PURE__*/(function (Collection) {
+    function Seq(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptySequence()
+        : isImmutable(value)
+        ? value.toSeq()
+        : seqFromValue(value);
+    }
+
+    if ( Collection ) Seq.__proto__ = Collection;
+    Seq.prototype = Object.create( Collection && Collection.prototype );
+    Seq.prototype.constructor = Seq;
+
+    Seq.prototype.toSeq = function toSeq () {
+      return this;
+    };
+
+    Seq.prototype.toString = function toString () {
+      return this.__toString('Seq {', '}');
+    };
+
+    Seq.prototype.cacheResult = function cacheResult () {
+      if (!this._cache && this.__iterateUncached) {
+        this._cache = this.entrySeq().toArray();
+        this.size = this._cache.length;
+      }
+      return this;
+    };
+
+    // abstract __iterateUncached(fn, reverse)
+
+    Seq.prototype.__iterate = function __iterate (fn, reverse) {
+      var cache = this._cache;
+      if (cache) {
+        var size = cache.length;
+        var i = 0;
+        while (i !== size) {
+          var entry = cache[reverse ? size - ++i : i++];
+          if (fn(entry[1], entry[0], this) === false) {
+            break;
+          }
+        }
+        return i;
+      }
+      return this.__iterateUncached(fn, reverse);
+    };
+
+    // abstract __iteratorUncached(type, reverse)
+
+    Seq.prototype.__iterator = function __iterator (type, reverse) {
+      var cache = this._cache;
+      if (cache) {
+        var size = cache.length;
+        var i = 0;
+        return new Iterator(function () {
+          if (i === size) {
+            return iteratorDone();
+          }
+          var entry = cache[reverse ? size - ++i : i++];
+          return iteratorValue(type, entry[0], entry[1]);
+        });
+      }
+      return this.__iteratorUncached(type, reverse);
+    };
+
+    return Seq;
+  }(Collection));
+
+  var KeyedSeq = /*@__PURE__*/(function (Seq) {
+    function KeyedSeq(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptySequence().toKeyedSeq()
+        : isCollection(value)
+        ? isKeyed(value)
+          ? value.toSeq()
+          : value.fromEntrySeq()
+        : isRecord(value)
+        ? value.toSeq()
+        : keyedSeqFromValue(value);
+    }
+
+    if ( Seq ) KeyedSeq.__proto__ = Seq;
+    KeyedSeq.prototype = Object.create( Seq && Seq.prototype );
+    KeyedSeq.prototype.constructor = KeyedSeq;
+
+    KeyedSeq.prototype.toKeyedSeq = function toKeyedSeq () {
+      return this;
+    };
+
+    return KeyedSeq;
+  }(Seq));
+
+  var IndexedSeq = /*@__PURE__*/(function (Seq) {
+    function IndexedSeq(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptySequence()
+        : isCollection(value)
+        ? isKeyed(value)
+          ? value.entrySeq()
+          : value.toIndexedSeq()
+        : isRecord(value)
+        ? value.toSeq().entrySeq()
+        : indexedSeqFromValue(value);
+    }
+
+    if ( Seq ) IndexedSeq.__proto__ = Seq;
+    IndexedSeq.prototype = Object.create( Seq && Seq.prototype );
+    IndexedSeq.prototype.constructor = IndexedSeq;
+
+    IndexedSeq.of = function of (/*...values*/) {
+      return IndexedSeq(arguments);
+    };
+
+    IndexedSeq.prototype.toIndexedSeq = function toIndexedSeq () {
+      return this;
+    };
+
+    IndexedSeq.prototype.toString = function toString () {
+      return this.__toString('Seq [', ']');
+    };
+
+    return IndexedSeq;
+  }(Seq));
+
+  var SetSeq = /*@__PURE__*/(function (Seq) {
+    function SetSeq(value) {
+      // eslint-disable-next-line no-constructor-return
+      return (
+        isCollection(value) && !isAssociative(value) ? value : IndexedSeq(value)
+      ).toSetSeq();
+    }
+
+    if ( Seq ) SetSeq.__proto__ = Seq;
+    SetSeq.prototype = Object.create( Seq && Seq.prototype );
+    SetSeq.prototype.constructor = SetSeq;
+
+    SetSeq.of = function of (/*...values*/) {
+      return SetSeq(arguments);
+    };
+
+    SetSeq.prototype.toSetSeq = function toSetSeq () {
+      return this;
+    };
+
+    return SetSeq;
+  }(Seq));
+
+  Seq.isSeq = isSeq;
+  Seq.Keyed = KeyedSeq;
+  Seq.Set = SetSeq;
+  Seq.Indexed = IndexedSeq;
+
+  Seq.prototype[IS_SEQ_SYMBOL] = true;
+
+  // #pragma Root Sequences
+
+  var ArraySeq = /*@__PURE__*/(function (IndexedSeq) {
+    function ArraySeq(array) {
+      this._array = array;
+      this.size = array.length;
+    }
+
+    if ( IndexedSeq ) ArraySeq.__proto__ = IndexedSeq;
+    ArraySeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+    ArraySeq.prototype.constructor = ArraySeq;
+
+    ArraySeq.prototype.get = function get (index, notSetValue) {
+      return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
+    };
+
+    ArraySeq.prototype.__iterate = function __iterate (fn, reverse) {
+      var array = this._array;
+      var size = array.length;
+      var i = 0;
+      while (i !== size) {
+        var ii = reverse ? size - ++i : i++;
+        if (fn(array[ii], ii, this) === false) {
+          break;
+        }
+      }
+      return i;
+    };
+
+    ArraySeq.prototype.__iterator = function __iterator (type, reverse) {
+      var array = this._array;
+      var size = array.length;
+      var i = 0;
+      return new Iterator(function () {
+        if (i === size) {
+          return iteratorDone();
+        }
+        var ii = reverse ? size - ++i : i++;
+        return iteratorValue(type, ii, array[ii]);
+      });
+    };
+
+    return ArraySeq;
+  }(IndexedSeq));
+
+  var ObjectSeq = /*@__PURE__*/(function (KeyedSeq) {
+    function ObjectSeq(object) {
+      var keys = Object.keys(object).concat(
+        Object.getOwnPropertySymbols ? Object.getOwnPropertySymbols(object) : []
+      );
+      this._object = object;
+      this._keys = keys;
+      this.size = keys.length;
+    }
+
+    if ( KeyedSeq ) ObjectSeq.__proto__ = KeyedSeq;
+    ObjectSeq.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
+    ObjectSeq.prototype.constructor = ObjectSeq;
+
+    ObjectSeq.prototype.get = function get (key, notSetValue) {
+      if (notSetValue !== undefined && !this.has(key)) {
+        return notSetValue;
+      }
+      return this._object[key];
+    };
+
+    ObjectSeq.prototype.has = function has (key) {
+      return hasOwnProperty.call(this._object, key);
+    };
+
+    ObjectSeq.prototype.__iterate = function __iterate (fn, reverse) {
+      var object = this._object;
+      var keys = this._keys;
+      var size = keys.length;
+      var i = 0;
+      while (i !== size) {
+        var key = keys[reverse ? size - ++i : i++];
+        if (fn(object[key], key, this) === false) {
+          break;
+        }
+      }
+      return i;
+    };
+
+    ObjectSeq.prototype.__iterator = function __iterator (type, reverse) {
+      var object = this._object;
+      var keys = this._keys;
+      var size = keys.length;
+      var i = 0;
+      return new Iterator(function () {
+        if (i === size) {
+          return iteratorDone();
+        }
+        var key = keys[reverse ? size - ++i : i++];
+        return iteratorValue(type, key, object[key]);
+      });
+    };
+
+    return ObjectSeq;
+  }(KeyedSeq));
+  ObjectSeq.prototype[IS_ORDERED_SYMBOL] = true;
+
+  var CollectionSeq = /*@__PURE__*/(function (IndexedSeq) {
+    function CollectionSeq(collection) {
+      this._collection = collection;
+      this.size = collection.length || collection.size;
+    }
+
+    if ( IndexedSeq ) CollectionSeq.__proto__ = IndexedSeq;
+    CollectionSeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+    CollectionSeq.prototype.constructor = CollectionSeq;
+
+    CollectionSeq.prototype.__iterateUncached = function __iterateUncached (fn, reverse) {
+      if (reverse) {
+        return this.cacheResult().__iterate(fn, reverse);
+      }
+      var collection = this._collection;
+      var iterator = getIterator(collection);
+      var iterations = 0;
+      if (isIterator(iterator)) {
+        var step;
+        while (!(step = iterator.next()).done) {
+          if (fn(step.value, iterations++, this) === false) {
+            break;
+          }
+        }
+      }
+      return iterations;
+    };
+
+    CollectionSeq.prototype.__iteratorUncached = function __iteratorUncached (type, reverse) {
+      if (reverse) {
+        return this.cacheResult().__iterator(type, reverse);
+      }
+      var collection = this._collection;
+      var iterator = getIterator(collection);
+      if (!isIterator(iterator)) {
+        return new Iterator(iteratorDone);
+      }
+      var iterations = 0;
+      return new Iterator(function () {
+        var step = iterator.next();
+        return step.done ? step : iteratorValue(type, iterations++, step.value);
+      });
+    };
+
+    return CollectionSeq;
+  }(IndexedSeq));
+
+  // # pragma Helper functions
+
+  var EMPTY_SEQ;
+
+  function emptySequence() {
+    return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
+  }
+
+  function keyedSeqFromValue(value) {
+    var seq = maybeIndexedSeqFromValue(value);
+    if (seq) {
+      return seq.fromEntrySeq();
+    }
+    if (typeof value === 'object') {
+      return new ObjectSeq(value);
+    }
+    throw new TypeError(
+      'Expected Array or collection object of [k, v] entries, or keyed object: ' +
+        value
+    );
+  }
+
+  function indexedSeqFromValue(value) {
+    var seq = maybeIndexedSeqFromValue(value);
+    if (seq) {
+      return seq;
+    }
+    throw new TypeError(
+      'Expected Array or collection object of values: ' + value
+    );
+  }
+
+  function seqFromValue(value) {
+    var seq = maybeIndexedSeqFromValue(value);
+    if (seq) {
+      return isEntriesIterable(value)
+        ? seq.fromEntrySeq()
+        : isKeysIterable(value)
+        ? seq.toSetSeq()
+        : seq;
+    }
+    if (typeof value === 'object') {
+      return new ObjectSeq(value);
+    }
+    throw new TypeError(
+      'Expected Array or collection object of values, or keyed object: ' + value
+    );
+  }
+
+  function maybeIndexedSeqFromValue(value) {
+    return isArrayLike(value)
+      ? new ArraySeq(value)
+      : hasIterator(value)
+      ? new CollectionSeq(value)
+      : undefined;
+  }
+
+  var IS_MAP_SYMBOL = '@@__IMMUTABLE_MAP__@@';
+
+  function isMap(maybeMap) {
+    return Boolean(maybeMap && maybeMap[IS_MAP_SYMBOL]);
+  }
+
+  function isOrderedMap(maybeOrderedMap) {
+    return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);
+  }
+
+  function isValueObject(maybeValue) {
+    return Boolean(
+      maybeValue &&
+        typeof maybeValue.equals === 'function' &&
+        typeof maybeValue.hashCode === 'function'
+    );
+  }
+
+  /**
+   * An extension of the "same-value" algorithm as [described for use by ES6 Map
+   * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
+   *
+   * NaN is considered the same as NaN, however -0 and 0 are considered the same
+   * value, which is different from the algorithm described by
+   * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
+   *
+   * This is extended further to allow Objects to describe the values they
+   * represent, by way of `valueOf` or `equals` (and `hashCode`).
+   *
+   * Note: because of this extension, the key equality of Immutable.Map and the
+   * value equality of Immutable.Set will differ from ES6 Map and Set.
+   *
+   * ### Defining custom values
+   *
+   * The easiest way to describe the value an object represents is by implementing
+   * `valueOf`. For example, `Date` represents a value by returning a unix
+   * timestamp for `valueOf`:
+   *
+   *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
+   *     var date2 = new Date(1234567890000);
+   *     date1.valueOf(); // 1234567890000
+   *     assert( date1 !== date2 );
+   *     assert( Immutable.is( date1, date2 ) );
+   *
+   * Note: overriding `valueOf` may have other implications if you use this object
+   * where JavaScript expects a primitive, such as implicit string coercion.
+   *
+   * For more complex types, especially collections, implementing `valueOf` may
+   * not be performant. An alternative is to implement `equals` and `hashCode`.
+   *
+   * `equals` takes another object, presumably of similar type, and returns true
+   * if it is equal. Equality is symmetrical, so the same result should be
+   * returned if this and the argument are flipped.
+   *
+   *     assert( a.equals(b) === b.equals(a) );
+   *
+   * `hashCode` returns a 32bit integer number representing the object which will
+   * be used to determine how to store the value object in a Map or Set. You must
+   * provide both or neither methods, one must not exist without the other.
+   *
+   * Also, an important relationship between these methods must be upheld: if two
+   * values are equal, they *must* return the same hashCode. If the values are not
+   * equal, they might have the same hashCode; this is called a hash collision,
+   * and while undesirable for performance reasons, it is acceptable.
+   *
+   *     if (a.equals(b)) {
+   *       assert( a.hashCode() === b.hashCode() );
+   *     }
+   *
+   * All Immutable collections are Value Objects: they implement `equals()`
+   * and `hashCode()`.
+   */
+  function is(valueA, valueB) {
+    if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
+      return true;
+    }
+    if (!valueA || !valueB) {
+      return false;
+    }
+    if (
+      typeof valueA.valueOf === 'function' &&
+      typeof valueB.valueOf === 'function'
+    ) {
+      valueA = valueA.valueOf();
+      valueB = valueB.valueOf();
+      if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {
+        return true;
+      }
+      if (!valueA || !valueB) {
+        return false;
+      }
+    }
+    return !!(
+      isValueObject(valueA) &&
+      isValueObject(valueB) &&
+      valueA.equals(valueB)
+    );
+  }
+
+  var imul =
+    typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2
+      ? Math.imul
+      : function imul(a, b) {
+          a |= 0; // int
+          b |= 0; // int
+          var c = a & 0xffff;
+          var d = b & 0xffff;
+          // Shift by 0 fixes the sign on the high part.
+          return (c * d + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0)) | 0; // int
+        };
+
+  // v8 has an optimization for storing 31-bit signed numbers.
+  // Values which have either 00 or 11 as the high order bits qualify.
+  // This function drops the highest order bit in a signed number, maintaining
+  // the sign bit.
+  function smi(i32) {
+    return ((i32 >>> 1) & 0x40000000) | (i32 & 0xbfffffff);
+  }
+
+  var defaultValueOf = Object.prototype.valueOf;
+
+  function hash(o) {
+    if (o == null) {
+      return hashNullish(o);
+    }
+
+    if (typeof o.hashCode === 'function') {
+      // Drop any high bits from accidentally long hash codes.
+      return smi(o.hashCode(o));
+    }
+
+    var v = valueOf(o);
+
+    if (v == null) {
+      return hashNullish(v);
+    }
+
+    switch (typeof v) {
+      case 'boolean':
+        // The hash values for built-in constants are a 1 value for each 5-byte
+        // shift region expect for the first, which encodes the value. This
+        // reduces the odds of a hash collision for these common values.
+        return v ? 0x42108421 : 0x42108420;
+      case 'number':
+        return hashNumber(v);
+      case 'string':
+        return v.length > STRING_HASH_CACHE_MIN_STRLEN
+          ? cachedHashString(v)
+          : hashString(v);
+      case 'object':
+      case 'function':
+        return hashJSObj(v);
+      case 'symbol':
+        return hashSymbol(v);
+      default:
+        if (typeof v.toString === 'function') {
+          return hashString(v.toString());
+        }
+        throw new Error('Value type ' + typeof v + ' cannot be hashed.');
+    }
+  }
+
+  function hashNullish(nullish) {
+    return nullish === null ? 0x42108422 : /* undefined */ 0x42108423;
+  }
+
+  // Compress arbitrarily large numbers into smi hashes.
+  function hashNumber(n) {
+    if (n !== n || n === Infinity) {
+      return 0;
+    }
+    var hash = n | 0;
+    if (hash !== n) {
+      hash ^= n * 0xffffffff;
+    }
+    while (n > 0xffffffff) {
+      n /= 0xffffffff;
+      hash ^= n;
+    }
+    return smi(hash);
+  }
+
+  function cachedHashString(string) {
+    var hashed = stringHashCache[string];
+    if (hashed === undefined) {
+      hashed = hashString(string);
+      if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {
+        STRING_HASH_CACHE_SIZE = 0;
+        stringHashCache = {};
+      }
+      STRING_HASH_CACHE_SIZE++;
+      stringHashCache[string] = hashed;
+    }
+    return hashed;
+  }
+
+  // http://jsperf.com/hashing-strings
+  function hashString(string) {
+    // This is the hash from JVM
+    // The hash code for a string is computed as
+    // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],
+    // where s[i] is the ith character of the string and n is the length of
+    // the string. We "mod" the result to make it between 0 (inclusive) and 2^31
+    // (exclusive) by dropping high bits.
+    var hashed = 0;
+    for (var ii = 0; ii < string.length; ii++) {
+      hashed = (31 * hashed + string.charCodeAt(ii)) | 0;
+    }
+    return smi(hashed);
+  }
+
+  function hashSymbol(sym) {
+    var hashed = symbolMap[sym];
+    if (hashed !== undefined) {
+      return hashed;
+    }
+
+    hashed = nextHash();
+
+    symbolMap[sym] = hashed;
+
+    return hashed;
+  }
+
+  function hashJSObj(obj) {
+    var hashed;
+    if (usingWeakMap) {
+      hashed = weakMap.get(obj);
+      if (hashed !== undefined) {
+        return hashed;
+      }
+    }
+
+    hashed = obj[UID_HASH_KEY];
+    if (hashed !== undefined) {
+      return hashed;
+    }
+
+    if (!canDefineProperty) {
+      hashed = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];
+      if (hashed !== undefined) {
+        return hashed;
+      }
+
+      hashed = getIENodeHash(obj);
+      if (hashed !== undefined) {
+        return hashed;
+      }
+    }
+
+    hashed = nextHash();
+
+    if (usingWeakMap) {
+      weakMap.set(obj, hashed);
+    } else if (isExtensible !== undefined && isExtensible(obj) === false) {
+      throw new Error('Non-extensible objects are not allowed as keys.');
+    } else if (canDefineProperty) {
+      Object.defineProperty(obj, UID_HASH_KEY, {
+        enumerable: false,
+        configurable: false,
+        writable: false,
+        value: hashed,
+      });
+    } else if (
+      obj.propertyIsEnumerable !== undefined &&
+      obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable
+    ) {
+      // Since we can't define a non-enumerable property on the object
+      // we'll hijack one of the less-used non-enumerable properties to
+      // save our hash on it. Since this is a function it will not show up in
+      // `JSON.stringify` which is what we want.
+      obj.propertyIsEnumerable = function () {
+        return this.constructor.prototype.propertyIsEnumerable.apply(
+          this,
+          arguments
+        );
+      };
+      obj.propertyIsEnumerable[UID_HASH_KEY] = hashed;
+    } else if (obj.nodeType !== undefined) {
+      // At this point we couldn't get the IE `uniqueID` to use as a hash
+      // and we couldn't use a non-enumerable property to exploit the
+      // dontEnum bug so we simply add the `UID_HASH_KEY` on the node
+      // itself.
+      obj[UID_HASH_KEY] = hashed;
+    } else {
+      throw new Error('Unable to set a non-enumerable property on object.');
+    }
+
+    return hashed;
+  }
+
+  // Get references to ES5 object methods.
+  var isExtensible = Object.isExtensible;
+
+  // True if Object.defineProperty works as expected. IE8 fails this test.
+  var canDefineProperty = (function () {
+    try {
+      Object.defineProperty({}, '@', {});
+      return true;
+    } catch (e) {
+      return false;
+    }
+  })();
+
+  // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it
+  // and avoid memory leaks from the IE cloneNode bug.
+  function getIENodeHash(node) {
+    if (node && node.nodeType > 0) {
+      switch (node.nodeType) {
+        case 1: // Element
+          return node.uniqueID;
+        case 9: // Document
+          return node.documentElement && node.documentElement.uniqueID;
+      }
+    }
+  }
+
+  function valueOf(obj) {
+    return obj.valueOf !== defaultValueOf && typeof obj.valueOf === 'function'
+      ? obj.valueOf(obj)
+      : obj;
+  }
+
+  function nextHash() {
+    var nextHash = ++_objHashUID;
+    if (_objHashUID & 0x40000000) {
+      _objHashUID = 0;
+    }
+    return nextHash;
+  }
+
+  // If possible, use a WeakMap.
+  var usingWeakMap = typeof WeakMap === 'function';
+  var weakMap;
+  if (usingWeakMap) {
+    weakMap = new WeakMap();
+  }
+
+  var symbolMap = Object.create(null);
+
+  var _objHashUID = 0;
+
+  var UID_HASH_KEY = '__immutablehash__';
+  if (typeof Symbol === 'function') {
+    UID_HASH_KEY = Symbol(UID_HASH_KEY);
+  }
+
+  var STRING_HASH_CACHE_MIN_STRLEN = 16;
+  var STRING_HASH_CACHE_MAX_SIZE = 255;
+  var STRING_HASH_CACHE_SIZE = 0;
+  var stringHashCache = {};
+
+  var ToKeyedSequence = /*@__PURE__*/(function (KeyedSeq) {
+    function ToKeyedSequence(indexed, useKeys) {
+      this._iter = indexed;
+      this._useKeys = useKeys;
+      this.size = indexed.size;
+    }
+
+    if ( KeyedSeq ) ToKeyedSequence.__proto__ = KeyedSeq;
+    ToKeyedSequence.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
+    ToKeyedSequence.prototype.constructor = ToKeyedSequence;
+
+    ToKeyedSequence.prototype.get = function get (key, notSetValue) {
+      return this._iter.get(key, notSetValue);
+    };
+
+    ToKeyedSequence.prototype.has = function has (key) {
+      return this._iter.has(key);
+    };
+
+    ToKeyedSequence.prototype.valueSeq = function valueSeq () {
+      return this._iter.valueSeq();
+    };
+
+    ToKeyedSequence.prototype.reverse = function reverse () {
+      var this$1$1 = this;
+
+      var reversedSequence = reverseFactory(this, true);
+      if (!this._useKeys) {
+        reversedSequence.valueSeq = function () { return this$1$1._iter.toSeq().reverse(); };
+      }
+      return reversedSequence;
+    };
+
+    ToKeyedSequence.prototype.map = function map (mapper, context) {
+      var this$1$1 = this;
+
+      var mappedSequence = mapFactory(this, mapper, context);
+      if (!this._useKeys) {
+        mappedSequence.valueSeq = function () { return this$1$1._iter.toSeq().map(mapper, context); };
+      }
+      return mappedSequence;
+    };
+
+    ToKeyedSequence.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      return this._iter.__iterate(function (v, k) { return fn(v, k, this$1$1); }, reverse);
+    };
+
+    ToKeyedSequence.prototype.__iterator = function __iterator (type, reverse) {
+      return this._iter.__iterator(type, reverse);
+    };
+
+    return ToKeyedSequence;
+  }(KeyedSeq));
+  ToKeyedSequence.prototype[IS_ORDERED_SYMBOL] = true;
+
+  var ToIndexedSequence = /*@__PURE__*/(function (IndexedSeq) {
+    function ToIndexedSequence(iter) {
+      this._iter = iter;
+      this.size = iter.size;
+    }
+
+    if ( IndexedSeq ) ToIndexedSequence.__proto__ = IndexedSeq;
+    ToIndexedSequence.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+    ToIndexedSequence.prototype.constructor = ToIndexedSequence;
+
+    ToIndexedSequence.prototype.includes = function includes (value) {
+      return this._iter.includes(value);
+    };
+
+    ToIndexedSequence.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      var i = 0;
+      reverse && ensureSize(this);
+      return this._iter.__iterate(
+        function (v) { return fn(v, reverse ? this$1$1.size - ++i : i++, this$1$1); },
+        reverse
+      );
+    };
+
+    ToIndexedSequence.prototype.__iterator = function __iterator (type, reverse) {
+      var this$1$1 = this;
+
+      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
+      var i = 0;
+      reverse && ensureSize(this);
+      return new Iterator(function () {
+        var step = iterator.next();
+        return step.done
+          ? step
+          : iteratorValue(
+              type,
+              reverse ? this$1$1.size - ++i : i++,
+              step.value,
+              step
+            );
+      });
+    };
+
+    return ToIndexedSequence;
+  }(IndexedSeq));
+
+  var ToSetSequence = /*@__PURE__*/(function (SetSeq) {
+    function ToSetSequence(iter) {
+      this._iter = iter;
+      this.size = iter.size;
+    }
+
+    if ( SetSeq ) ToSetSequence.__proto__ = SetSeq;
+    ToSetSequence.prototype = Object.create( SetSeq && SetSeq.prototype );
+    ToSetSequence.prototype.constructor = ToSetSequence;
+
+    ToSetSequence.prototype.has = function has (key) {
+      return this._iter.includes(key);
+    };
+
+    ToSetSequence.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      return this._iter.__iterate(function (v) { return fn(v, v, this$1$1); }, reverse);
+    };
+
+    ToSetSequence.prototype.__iterator = function __iterator (type, reverse) {
+      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
+      return new Iterator(function () {
+        var step = iterator.next();
+        return step.done
+          ? step
+          : iteratorValue(type, step.value, step.value, step);
+      });
+    };
+
+    return ToSetSequence;
+  }(SetSeq));
+
+  var FromEntriesSequence = /*@__PURE__*/(function (KeyedSeq) {
+    function FromEntriesSequence(entries) {
+      this._iter = entries;
+      this.size = entries.size;
+    }
+
+    if ( KeyedSeq ) FromEntriesSequence.__proto__ = KeyedSeq;
+    FromEntriesSequence.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );
+    FromEntriesSequence.prototype.constructor = FromEntriesSequence;
+
+    FromEntriesSequence.prototype.entrySeq = function entrySeq () {
+      return this._iter.toSeq();
+    };
+
+    FromEntriesSequence.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      return this._iter.__iterate(function (entry) {
+        // Check if entry exists first so array access doesn't throw for holes
+        // in the parent iteration.
+        if (entry) {
+          validateEntry(entry);
+          var indexedCollection = isCollection(entry);
+          return fn(
+            indexedCollection ? entry.get(1) : entry[1],
+            indexedCollection ? entry.get(0) : entry[0],
+            this$1$1
+          );
+        }
+      }, reverse);
+    };
+
+    FromEntriesSequence.prototype.__iterator = function __iterator (type, reverse) {
+      var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);
+      return new Iterator(function () {
+        while (true) {
+          var step = iterator.next();
+          if (step.done) {
+            return step;
+          }
+          var entry = step.value;
+          // Check if entry exists first so array access doesn't throw for holes
+          // in the parent iteration.
+          if (entry) {
+            validateEntry(entry);
+            var indexedCollection = isCollection(entry);
+            return iteratorValue(
+              type,
+              indexedCollection ? entry.get(0) : entry[0],
+              indexedCollection ? entry.get(1) : entry[1],
+              step
+            );
+          }
+        }
+      });
+    };
+
+    return FromEntriesSequence;
+  }(KeyedSeq));
+
+  ToIndexedSequence.prototype.cacheResult =
+    ToKeyedSequence.prototype.cacheResult =
+    ToSetSequence.prototype.cacheResult =
+    FromEntriesSequence.prototype.cacheResult =
+      cacheResultThrough;
+
+  function flipFactory(collection) {
+    var flipSequence = makeSequence(collection);
+    flipSequence._iter = collection;
+    flipSequence.size = collection.size;
+    flipSequence.flip = function () { return collection; };
+    flipSequence.reverse = function () {
+      var reversedSequence = collection.reverse.apply(this); // super.reverse()
+      reversedSequence.flip = function () { return collection.reverse(); };
+      return reversedSequence;
+    };
+    flipSequence.has = function (key) { return collection.includes(key); };
+    flipSequence.includes = function (key) { return collection.has(key); };
+    flipSequence.cacheResult = cacheResultThrough;
+    flipSequence.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      return collection.__iterate(function (v, k) { return fn(k, v, this$1$1) !== false; }, reverse);
+    };
+    flipSequence.__iteratorUncached = function (type, reverse) {
+      if (type === ITERATE_ENTRIES) {
+        var iterator = collection.__iterator(type, reverse);
+        return new Iterator(function () {
+          var step = iterator.next();
+          if (!step.done) {
+            var k = step.value[0];
+            step.value[0] = step.value[1];
+            step.value[1] = k;
+          }
+          return step;
+        });
+      }
+      return collection.__iterator(
+        type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,
+        reverse
+      );
+    };
+    return flipSequence;
+  }
+
+  function mapFactory(collection, mapper, context) {
+    var mappedSequence = makeSequence(collection);
+    mappedSequence.size = collection.size;
+    mappedSequence.has = function (key) { return collection.has(key); };
+    mappedSequence.get = function (key, notSetValue) {
+      var v = collection.get(key, NOT_SET);
+      return v === NOT_SET
+        ? notSetValue
+        : mapper.call(context, v, key, collection);
+    };
+    mappedSequence.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      return collection.__iterate(
+        function (v, k, c) { return fn(mapper.call(context, v, k, c), k, this$1$1) !== false; },
+        reverse
+      );
+    };
+    mappedSequence.__iteratorUncached = function (type, reverse) {
+      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+      return new Iterator(function () {
+        var step = iterator.next();
+        if (step.done) {
+          return step;
+        }
+        var entry = step.value;
+        var key = entry[0];
+        return iteratorValue(
+          type,
+          key,
+          mapper.call(context, entry[1], key, collection),
+          step
+        );
+      });
+    };
+    return mappedSequence;
+  }
+
+  function reverseFactory(collection, useKeys) {
+    var this$1$1 = this;
+
+    var reversedSequence = makeSequence(collection);
+    reversedSequence._iter = collection;
+    reversedSequence.size = collection.size;
+    reversedSequence.reverse = function () { return collection; };
+    if (collection.flip) {
+      reversedSequence.flip = function () {
+        var flipSequence = flipFactory(collection);
+        flipSequence.reverse = function () { return collection.flip(); };
+        return flipSequence;
+      };
+    }
+    reversedSequence.get = function (key, notSetValue) { return collection.get(useKeys ? key : -1 - key, notSetValue); };
+    reversedSequence.has = function (key) { return collection.has(useKeys ? key : -1 - key); };
+    reversedSequence.includes = function (value) { return collection.includes(value); };
+    reversedSequence.cacheResult = cacheResultThrough;
+    reversedSequence.__iterate = function (fn, reverse) {
+      var this$1$1 = this;
+
+      var i = 0;
+      reverse && ensureSize(collection);
+      return collection.__iterate(
+        function (v, k) { return fn(v, useKeys ? k : reverse ? this$1$1.size - ++i : i++, this$1$1); },
+        !reverse
+      );
+    };
+    reversedSequence.__iterator = function (type, reverse) {
+      var i = 0;
+      reverse && ensureSize(collection);
+      var iterator = collection.__iterator(ITERATE_ENTRIES, !reverse);
+      return new Iterator(function () {
+        var step = iterator.next();
+        if (step.done) {
+          return step;
+        }
+        var entry = step.value;
+        return iteratorValue(
+          type,
+          useKeys ? entry[0] : reverse ? this$1$1.size - ++i : i++,
+          entry[1],
+          step
+        );
+      });
+    };
+    return reversedSequence;
+  }
+
+  function filterFactory(collection, predicate, context, useKeys) {
+    var filterSequence = makeSequence(collection);
+    if (useKeys) {
+      filterSequence.has = function (key) {
+        var v = collection.get(key, NOT_SET);
+        return v !== NOT_SET && !!predicate.call(context, v, key, collection);
+      };
+      filterSequence.get = function (key, notSetValue) {
+        var v = collection.get(key, NOT_SET);
+        return v !== NOT_SET && predicate.call(context, v, key, collection)
+          ? v
+          : notSetValue;
+      };
+    }
+    filterSequence.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      var iterations = 0;
+      collection.__iterate(function (v, k, c) {
+        if (predicate.call(context, v, k, c)) {
+          iterations++;
+          return fn(v, useKeys ? k : iterations - 1, this$1$1);
+        }
+      }, reverse);
+      return iterations;
+    };
+    filterSequence.__iteratorUncached = function (type, reverse) {
+      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+      var iterations = 0;
+      return new Iterator(function () {
+        while (true) {
+          var step = iterator.next();
+          if (step.done) {
+            return step;
+          }
+          var entry = step.value;
+          var key = entry[0];
+          var value = entry[1];
+          if (predicate.call(context, value, key, collection)) {
+            return iteratorValue(type, useKeys ? key : iterations++, value, step);
+          }
+        }
+      });
+    };
+    return filterSequence;
+  }
+
+  function countByFactory(collection, grouper, context) {
+    var groups = Map().asMutable();
+    collection.__iterate(function (v, k) {
+      groups.update(grouper.call(context, v, k, collection), 0, function (a) { return a + 1; });
+    });
+    return groups.asImmutable();
+  }
+
+  function groupByFactory(collection, grouper, context) {
+    var isKeyedIter = isKeyed(collection);
+    var groups = (isOrdered(collection) ? OrderedMap() : Map()).asMutable();
+    collection.__iterate(function (v, k) {
+      groups.update(
+        grouper.call(context, v, k, collection),
+        function (a) { return ((a = a || []), a.push(isKeyedIter ? [k, v] : v), a); }
+      );
+    });
+    var coerce = collectionClass(collection);
+    return groups.map(function (arr) { return reify(collection, coerce(arr)); }).asImmutable();
+  }
+
+  function partitionFactory(collection, predicate, context) {
+    var isKeyedIter = isKeyed(collection);
+    var groups = [[], []];
+    collection.__iterate(function (v, k) {
+      groups[predicate.call(context, v, k, collection) ? 1 : 0].push(
+        isKeyedIter ? [k, v] : v
+      );
+    });
+    var coerce = collectionClass(collection);
+    return groups.map(function (arr) { return reify(collection, coerce(arr)); });
+  }
+
+  function sliceFactory(collection, begin, end, useKeys) {
+    var originalSize = collection.size;
+
+    if (wholeSlice(begin, end, originalSize)) {
+      return collection;
+    }
+
+    var resolvedBegin = resolveBegin(begin, originalSize);
+    var resolvedEnd = resolveEnd(end, originalSize);
+
+    // begin or end will be NaN if they were provided as negative numbers and
+    // this collection's size is unknown. In that case, cache first so there is
+    // a known size and these do not resolve to NaN.
+    if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {
+      return sliceFactory(collection.toSeq().cacheResult(), begin, end, useKeys);
+    }
+
+    // Note: resolvedEnd is undefined when the original sequence's length is
+    // unknown and this slice did not supply an end and should contain all
+    // elements after resolvedBegin.
+    // In that case, resolvedSize will be NaN and sliceSize will remain undefined.
+    var resolvedSize = resolvedEnd - resolvedBegin;
+    var sliceSize;
+    if (resolvedSize === resolvedSize) {
+      sliceSize = resolvedSize < 0 ? 0 : resolvedSize;
+    }
+
+    var sliceSeq = makeSequence(collection);
+
+    // If collection.size is undefined, the size of the realized sliceSeq is
+    // unknown at this point unless the number of items to slice is 0
+    sliceSeq.size =
+      sliceSize === 0 ? sliceSize : (collection.size && sliceSize) || undefined;
+
+    if (!useKeys && isSeq(collection) && sliceSize >= 0) {
+      sliceSeq.get = function (index, notSetValue) {
+        index = wrapIndex(this, index);
+        return index >= 0 && index < sliceSize
+          ? collection.get(index + resolvedBegin, notSetValue)
+          : notSetValue;
+      };
+    }
+
+    sliceSeq.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      if (sliceSize === 0) {
+        return 0;
+      }
+      if (reverse) {
+        return this.cacheResult().__iterate(fn, reverse);
+      }
+      var skipped = 0;
+      var isSkipping = true;
+      var iterations = 0;
+      collection.__iterate(function (v, k) {
+        if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {
+          iterations++;
+          return (
+            fn(v, useKeys ? k : iterations - 1, this$1$1) !== false &&
+            iterations !== sliceSize
+          );
+        }
+      });
+      return iterations;
+    };
+
+    sliceSeq.__iteratorUncached = function (type, reverse) {
+      if (sliceSize !== 0 && reverse) {
+        return this.cacheResult().__iterator(type, reverse);
+      }
+      // Don't bother instantiating parent iterator if taking 0.
+      if (sliceSize === 0) {
+        return new Iterator(iteratorDone);
+      }
+      var iterator = collection.__iterator(type, reverse);
+      var skipped = 0;
+      var iterations = 0;
+      return new Iterator(function () {
+        while (skipped++ < resolvedBegin) {
+          iterator.next();
+        }
+        if (++iterations > sliceSize) {
+          return iteratorDone();
+        }
+        var step = iterator.next();
+        if (useKeys || type === ITERATE_VALUES || step.done) {
+          return step;
+        }
+        if (type === ITERATE_KEYS) {
+          return iteratorValue(type, iterations - 1, undefined, step);
+        }
+        return iteratorValue(type, iterations - 1, step.value[1], step);
+      });
+    };
+
+    return sliceSeq;
+  }
+
+  function takeWhileFactory(collection, predicate, context) {
+    var takeSequence = makeSequence(collection);
+    takeSequence.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      if (reverse) {
+        return this.cacheResult().__iterate(fn, reverse);
+      }
+      var iterations = 0;
+      collection.__iterate(
+        function (v, k, c) { return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$1$1); }
+      );
+      return iterations;
+    };
+    takeSequence.__iteratorUncached = function (type, reverse) {
+      var this$1$1 = this;
+
+      if (reverse) {
+        return this.cacheResult().__iterator(type, reverse);
+      }
+      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+      var iterating = true;
+      return new Iterator(function () {
+        if (!iterating) {
+          return iteratorDone();
+        }
+        var step = iterator.next();
+        if (step.done) {
+          return step;
+        }
+        var entry = step.value;
+        var k = entry[0];
+        var v = entry[1];
+        if (!predicate.call(context, v, k, this$1$1)) {
+          iterating = false;
+          return iteratorDone();
+        }
+        return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);
+      });
+    };
+    return takeSequence;
+  }
+
+  function skipWhileFactory(collection, predicate, context, useKeys) {
+    var skipSequence = makeSequence(collection);
+    skipSequence.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      if (reverse) {
+        return this.cacheResult().__iterate(fn, reverse);
+      }
+      var isSkipping = true;
+      var iterations = 0;
+      collection.__iterate(function (v, k, c) {
+        if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {
+          iterations++;
+          return fn(v, useKeys ? k : iterations - 1, this$1$1);
+        }
+      });
+      return iterations;
+    };
+    skipSequence.__iteratorUncached = function (type, reverse) {
+      var this$1$1 = this;
+
+      if (reverse) {
+        return this.cacheResult().__iterator(type, reverse);
+      }
+      var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);
+      var skipping = true;
+      var iterations = 0;
+      return new Iterator(function () {
+        var step;
+        var k;
+        var v;
+        do {
+          step = iterator.next();
+          if (step.done) {
+            if (useKeys || type === ITERATE_VALUES) {
+              return step;
+            }
+            if (type === ITERATE_KEYS) {
+              return iteratorValue(type, iterations++, undefined, step);
+            }
+            return iteratorValue(type, iterations++, step.value[1], step);
+          }
+          var entry = step.value;
+          k = entry[0];
+          v = entry[1];
+          skipping && (skipping = predicate.call(context, v, k, this$1$1));
+        } while (skipping);
+        return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);
+      });
+    };
+    return skipSequence;
+  }
+
+  function concatFactory(collection, values) {
+    var isKeyedCollection = isKeyed(collection);
+    var iters = [collection]
+      .concat(values)
+      .map(function (v) {
+        if (!isCollection(v)) {
+          v = isKeyedCollection
+            ? keyedSeqFromValue(v)
+            : indexedSeqFromValue(Array.isArray(v) ? v : [v]);
+        } else if (isKeyedCollection) {
+          v = KeyedCollection(v);
+        }
+        return v;
+      })
+      .filter(function (v) { return v.size !== 0; });
+
+    if (iters.length === 0) {
+      return collection;
+    }
+
+    if (iters.length === 1) {
+      var singleton = iters[0];
+      if (
+        singleton === collection ||
+        (isKeyedCollection && isKeyed(singleton)) ||
+        (isIndexed(collection) && isIndexed(singleton))
+      ) {
+        return singleton;
+      }
+    }
+
+    var concatSeq = new ArraySeq(iters);
+    if (isKeyedCollection) {
+      concatSeq = concatSeq.toKeyedSeq();
+    } else if (!isIndexed(collection)) {
+      concatSeq = concatSeq.toSetSeq();
+    }
+    concatSeq = concatSeq.flatten(true);
+    concatSeq.size = iters.reduce(function (sum, seq) {
+      if (sum !== undefined) {
+        var size = seq.size;
+        if (size !== undefined) {
+          return sum + size;
+        }
+      }
+    }, 0);
+    return concatSeq;
+  }
+
+  function flattenFactory(collection, depth, useKeys) {
+    var flatSequence = makeSequence(collection);
+    flatSequence.__iterateUncached = function (fn, reverse) {
+      if (reverse) {
+        return this.cacheResult().__iterate(fn, reverse);
+      }
+      var iterations = 0;
+      var stopped = false;
+      function flatDeep(iter, currentDepth) {
+        iter.__iterate(function (v, k) {
+          if ((!depth || currentDepth < depth) && isCollection(v)) {
+            flatDeep(v, currentDepth + 1);
+          } else {
+            iterations++;
+            if (fn(v, useKeys ? k : iterations - 1, flatSequence) === false) {
+              stopped = true;
+            }
+          }
+          return !stopped;
+        }, reverse);
+      }
+      flatDeep(collection, 0);
+      return iterations;
+    };
+    flatSequence.__iteratorUncached = function (type, reverse) {
+      if (reverse) {
+        return this.cacheResult().__iterator(type, reverse);
+      }
+      var iterator = collection.__iterator(type, reverse);
+      var stack = [];
+      var iterations = 0;
+      return new Iterator(function () {
+        while (iterator) {
+          var step = iterator.next();
+          if (step.done !== false) {
+            iterator = stack.pop();
+            continue;
+          }
+          var v = step.value;
+          if (type === ITERATE_ENTRIES) {
+            v = v[1];
+          }
+          if ((!depth || stack.length < depth) && isCollection(v)) {
+            stack.push(iterator);
+            iterator = v.__iterator(type, reverse);
+          } else {
+            return useKeys ? step : iteratorValue(type, iterations++, v, step);
+          }
+        }
+        return iteratorDone();
+      });
+    };
+    return flatSequence;
+  }
+
+  function flatMapFactory(collection, mapper, context) {
+    var coerce = collectionClass(collection);
+    return collection
+      .toSeq()
+      .map(function (v, k) { return coerce(mapper.call(context, v, k, collection)); })
+      .flatten(true);
+  }
+
+  function interposeFactory(collection, separator) {
+    var interposedSequence = makeSequence(collection);
+    interposedSequence.size = collection.size && collection.size * 2 - 1;
+    interposedSequence.__iterateUncached = function (fn, reverse) {
+      var this$1$1 = this;
+
+      var iterations = 0;
+      collection.__iterate(
+        function (v) { return (!iterations || fn(separator, iterations++, this$1$1) !== false) &&
+          fn(v, iterations++, this$1$1) !== false; },
+        reverse
+      );
+      return iterations;
+    };
+    interposedSequence.__iteratorUncached = function (type, reverse) {
+      var iterator = collection.__iterator(ITERATE_VALUES, reverse);
+      var iterations = 0;
+      var step;
+      return new Iterator(function () {
+        if (!step || iterations % 2) {
+          step = iterator.next();
+          if (step.done) {
+            return step;
+          }
+        }
+        return iterations % 2
+          ? iteratorValue(type, iterations++, separator)
+          : iteratorValue(type, iterations++, step.value, step);
+      });
+    };
+    return interposedSequence;
+  }
+
+  function sortFactory(collection, comparator, mapper) {
+    if (!comparator) {
+      comparator = defaultComparator;
+    }
+    var isKeyedCollection = isKeyed(collection);
+    var index = 0;
+    var entries = collection
+      .toSeq()
+      .map(function (v, k) { return [k, v, index++, mapper ? mapper(v, k, collection) : v]; })
+      .valueSeq()
+      .toArray();
+    entries
+      .sort(function (a, b) { return comparator(a[3], b[3]) || a[2] - b[2]; })
+      .forEach(
+        isKeyedCollection
+          ? function (v, i) {
+              entries[i].length = 2;
+            }
+          : function (v, i) {
+              entries[i] = v[1];
+            }
+      );
+    return isKeyedCollection
+      ? KeyedSeq(entries)
+      : isIndexed(collection)
+      ? IndexedSeq(entries)
+      : SetSeq(entries);
+  }
+
+  function maxFactory(collection, comparator, mapper) {
+    if (!comparator) {
+      comparator = defaultComparator;
+    }
+    if (mapper) {
+      var entry = collection
+        .toSeq()
+        .map(function (v, k) { return [v, mapper(v, k, collection)]; })
+        .reduce(function (a, b) { return (maxCompare(comparator, a[1], b[1]) ? b : a); });
+      return entry && entry[0];
+    }
+    return collection.reduce(function (a, b) { return (maxCompare(comparator, a, b) ? b : a); });
+  }
+
+  function maxCompare(comparator, a, b) {
+    var comp = comparator(b, a);
+    // b is considered the new max if the comparator declares them equal, but
+    // they are not equal and b is in fact a nullish value.
+    return (
+      (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) ||
+      comp > 0
+    );
+  }
+
+  function zipWithFactory(keyIter, zipper, iters, zipAll) {
+    var zipSequence = makeSequence(keyIter);
+    var sizes = new ArraySeq(iters).map(function (i) { return i.size; });
+    zipSequence.size = zipAll ? sizes.max() : sizes.min();
+    // Note: this a generic base implementation of __iterate in terms of
+    // __iterator which may be more generically useful in the future.
+    zipSequence.__iterate = function (fn, reverse) {
+      /* generic:
+      var iterator = this.__iterator(ITERATE_ENTRIES, reverse);
+      var step;
+      var iterations = 0;
+      while (!(step = iterator.next()).done) {
+        iterations++;
+        if (fn(step.value[1], step.value[0], this) === false) {
+          break;
+        }
+      }
+      return iterations;
+      */
+      // indexed:
+      var iterator = this.__iterator(ITERATE_VALUES, reverse);
+      var step;
+      var iterations = 0;
+      while (!(step = iterator.next()).done) {
+        if (fn(step.value, iterations++, this) === false) {
+          break;
+        }
+      }
+      return iterations;
+    };
+    zipSequence.__iteratorUncached = function (type, reverse) {
+      var iterators = iters.map(
+        function (i) { return ((i = Collection(i)), getIterator(reverse ? i.reverse() : i)); }
+      );
+      var iterations = 0;
+      var isDone = false;
+      return new Iterator(function () {
+        var steps;
+        if (!isDone) {
+          steps = iterators.map(function (i) { return i.next(); });
+          isDone = zipAll ? steps.every(function (s) { return s.done; }) : steps.some(function (s) { return s.done; });
+        }
+        if (isDone) {
+          return iteratorDone();
+        }
+        return iteratorValue(
+          type,
+          iterations++,
+          zipper.apply(
+            null,
+            steps.map(function (s) { return s.value; })
+          )
+        );
+      });
+    };
+    return zipSequence;
+  }
+
+  // #pragma Helper Functions
+
+  function reify(iter, seq) {
+    return iter === seq ? iter : isSeq(iter) ? seq : iter.constructor(seq);
+  }
+
+  function validateEntry(entry) {
+    if (entry !== Object(entry)) {
+      throw new TypeError('Expected [K, V] tuple: ' + entry);
+    }
+  }
+
+  function collectionClass(collection) {
+    return isKeyed(collection)
+      ? KeyedCollection
+      : isIndexed(collection)
+      ? IndexedCollection
+      : SetCollection;
+  }
+
+  function makeSequence(collection) {
+    return Object.create(
+      (isKeyed(collection)
+        ? KeyedSeq
+        : isIndexed(collection)
+        ? IndexedSeq
+        : SetSeq
+      ).prototype
+    );
+  }
+
+  function cacheResultThrough() {
+    if (this._iter.cacheResult) {
+      this._iter.cacheResult();
+      this.size = this._iter.size;
+      return this;
+    }
+    return Seq.prototype.cacheResult.call(this);
+  }
+
+  function defaultComparator(a, b) {
+    if (a === undefined && b === undefined) {
+      return 0;
+    }
+
+    if (a === undefined) {
+      return 1;
+    }
+
+    if (b === undefined) {
+      return -1;
+    }
+
+    return a > b ? 1 : a < b ? -1 : 0;
+  }
+
+  function arrCopy(arr, offset) {
+    offset = offset || 0;
+    var len = Math.max(0, arr.length - offset);
+    var newArr = new Array(len);
+    for (var ii = 0; ii < len; ii++) {
+      newArr[ii] = arr[ii + offset];
+    }
+    return newArr;
+  }
+
+  function invariant(condition, error) {
+    if (!condition) { throw new Error(error); }
+  }
+
+  function assertNotInfinite(size) {
+    invariant(
+      size !== Infinity,
+      'Cannot perform this action with an infinite size.'
+    );
+  }
+
+  function coerceKeyPath(keyPath) {
+    if (isArrayLike(keyPath) && typeof keyPath !== 'string') {
+      return keyPath;
+    }
+    if (isOrdered(keyPath)) {
+      return keyPath.toArray();
+    }
+    throw new TypeError(
+      'Invalid keyPath: expected Ordered Collection or Array: ' + keyPath
+    );
+  }
+
+  var toString = Object.prototype.toString;
+
+  function isPlainObject(value) {
+    // The base prototype's toString deals with Argument objects and native namespaces like Math
+    if (
+      !value ||
+      typeof value !== 'object' ||
+      toString.call(value) !== '[object Object]'
+    ) {
+      return false;
+    }
+
+    var proto = Object.getPrototypeOf(value);
+    if (proto === null) {
+      return true;
+    }
+
+    // Iteratively going up the prototype chain is needed for cross-realm environments (differing contexts, iframes, etc)
+    var parentProto = proto;
+    var nextProto = Object.getPrototypeOf(proto);
+    while (nextProto !== null) {
+      parentProto = nextProto;
+      nextProto = Object.getPrototypeOf(parentProto);
+    }
+    return parentProto === proto;
+  }
+
+  /**
+   * Returns true if the value is a potentially-persistent data structure, either
+   * provided by Immutable.js or a plain Array or Object.
+   */
+  function isDataStructure(value) {
+    return (
+      typeof value === 'object' &&
+      (isImmutable(value) || Array.isArray(value) || isPlainObject(value))
+    );
+  }
+
+  function quoteString(value) {
+    try {
+      return typeof value === 'string' ? JSON.stringify(value) : String(value);
+    } catch (_ignoreError) {
+      return JSON.stringify(value);
+    }
+  }
+
+  function has(collection, key) {
+    return isImmutable(collection)
+      ? collection.has(key)
+      : isDataStructure(collection) && hasOwnProperty.call(collection, key);
+  }
+
+  function get(collection, key, notSetValue) {
+    return isImmutable(collection)
+      ? collection.get(key, notSetValue)
+      : !has(collection, key)
+      ? notSetValue
+      : typeof collection.get === 'function'
+      ? collection.get(key)
+      : collection[key];
+  }
+
+  function shallowCopy(from) {
+    if (Array.isArray(from)) {
+      return arrCopy(from);
+    }
+    var to = {};
+    for (var key in from) {
+      if (hasOwnProperty.call(from, key)) {
+        to[key] = from[key];
+      }
+    }
+    return to;
+  }
+
+  function remove(collection, key) {
+    if (!isDataStructure(collection)) {
+      throw new TypeError(
+        'Cannot update non-data-structure value: ' + collection
+      );
+    }
+    if (isImmutable(collection)) {
+      if (!collection.remove) {
+        throw new TypeError(
+          'Cannot update immutable value without .remove() method: ' + collection
+        );
+      }
+      return collection.remove(key);
+    }
+    if (!hasOwnProperty.call(collection, key)) {
+      return collection;
+    }
+    var collectionCopy = shallowCopy(collection);
+    if (Array.isArray(collectionCopy)) {
+      collectionCopy.splice(key, 1);
+    } else {
+      delete collectionCopy[key];
+    }
+    return collectionCopy;
+  }
+
+  function set(collection, key, value) {
+    if (!isDataStructure(collection)) {
+      throw new TypeError(
+        'Cannot update non-data-structure value: ' + collection
+      );
+    }
+    if (isImmutable(collection)) {
+      if (!collection.set) {
+        throw new TypeError(
+          'Cannot update immutable value without .set() method: ' + collection
+        );
+      }
+      return collection.set(key, value);
+    }
+    if (hasOwnProperty.call(collection, key) && value === collection[key]) {
+      return collection;
+    }
+    var collectionCopy = shallowCopy(collection);
+    collectionCopy[key] = value;
+    return collectionCopy;
+  }
+
+  function updateIn$1(collection, keyPath, notSetValue, updater) {
+    if (!updater) {
+      updater = notSetValue;
+      notSetValue = undefined;
+    }
+    var updatedValue = updateInDeeply(
+      isImmutable(collection),
+      collection,
+      coerceKeyPath(keyPath),
+      0,
+      notSetValue,
+      updater
+    );
+    return updatedValue === NOT_SET ? notSetValue : updatedValue;
+  }
+
+  function updateInDeeply(
+    inImmutable,
+    existing,
+    keyPath,
+    i,
+    notSetValue,
+    updater
+  ) {
+    var wasNotSet = existing === NOT_SET;
+    if (i === keyPath.length) {
+      var existingValue = wasNotSet ? notSetValue : existing;
+      var newValue = updater(existingValue);
+      return newValue === existingValue ? existing : newValue;
+    }
+    if (!wasNotSet && !isDataStructure(existing)) {
+      throw new TypeError(
+        'Cannot update within non-data-structure value in path [' +
+          keyPath.slice(0, i).map(quoteString) +
+          ']: ' +
+          existing
+      );
+    }
+    var key = keyPath[i];
+    var nextExisting = wasNotSet ? NOT_SET : get(existing, key, NOT_SET);
+    var nextUpdated = updateInDeeply(
+      nextExisting === NOT_SET ? inImmutable : isImmutable(nextExisting),
+      nextExisting,
+      keyPath,
+      i + 1,
+      notSetValue,
+      updater
+    );
+    return nextUpdated === nextExisting
+      ? existing
+      : nextUpdated === NOT_SET
+      ? remove(existing, key)
+      : set(
+          wasNotSet ? (inImmutable ? emptyMap() : {}) : existing,
+          key,
+          nextUpdated
+        );
+  }
+
+  function setIn$1(collection, keyPath, value) {
+    return updateIn$1(collection, keyPath, NOT_SET, function () { return value; });
+  }
+
+  function setIn(keyPath, v) {
+    return setIn$1(this, keyPath, v);
+  }
+
+  function removeIn(collection, keyPath) {
+    return updateIn$1(collection, keyPath, function () { return NOT_SET; });
+  }
+
+  function deleteIn(keyPath) {
+    return removeIn(this, keyPath);
+  }
+
+  function update$1(collection, key, notSetValue, updater) {
+    return updateIn$1(collection, [key], notSetValue, updater);
+  }
+
+  function update(key, notSetValue, updater) {
+    return arguments.length === 1
+      ? key(this)
+      : update$1(this, key, notSetValue, updater);
+  }
+
+  function updateIn(keyPath, notSetValue, updater) {
+    return updateIn$1(this, keyPath, notSetValue, updater);
+  }
+
+  function merge$1() {
+    var iters = [], len = arguments.length;
+    while ( len-- ) iters[ len ] = arguments[ len ];
+
+    return mergeIntoKeyedWith(this, iters);
+  }
+
+  function mergeWith$1(merger) {
+    var iters = [], len = arguments.length - 1;
+    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+    if (typeof merger !== 'function') {
+      throw new TypeError('Invalid merger function: ' + merger);
+    }
+    return mergeIntoKeyedWith(this, iters, merger);
+  }
+
+  function mergeIntoKeyedWith(collection, collections, merger) {
+    var iters = [];
+    for (var ii = 0; ii < collections.length; ii++) {
+      var collection$1 = KeyedCollection(collections[ii]);
+      if (collection$1.size !== 0) {
+        iters.push(collection$1);
+      }
+    }
+    if (iters.length === 0) {
+      return collection;
+    }
+    if (
+      collection.toSeq().size === 0 &&
+      !collection.__ownerID &&
+      iters.length === 1
+    ) {
+      return collection.constructor(iters[0]);
+    }
+    return collection.withMutations(function (collection) {
+      var mergeIntoCollection = merger
+        ? function (value, key) {
+            update$1(collection, key, NOT_SET, function (oldVal) { return oldVal === NOT_SET ? value : merger(oldVal, value, key); }
+            );
+          }
+        : function (value, key) {
+            collection.set(key, value);
+          };
+      for (var ii = 0; ii < iters.length; ii++) {
+        iters[ii].forEach(mergeIntoCollection);
+      }
+    });
+  }
+
+  function merge(collection) {
+    var sources = [], len = arguments.length - 1;
+    while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
+
+    return mergeWithSources(collection, sources);
+  }
+
+  function mergeWith(merger, collection) {
+    var sources = [], len = arguments.length - 2;
+    while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];
+
+    return mergeWithSources(collection, sources, merger);
+  }
+
+  function mergeDeep$1(collection) {
+    var sources = [], len = arguments.length - 1;
+    while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];
+
+    return mergeDeepWithSources(collection, sources);
+  }
+
+  function mergeDeepWith$1(merger, collection) {
+    var sources = [], len = arguments.length - 2;
+    while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];
+
+    return mergeDeepWithSources(collection, sources, merger);
+  }
+
+  function mergeDeepWithSources(collection, sources, merger) {
+    return mergeWithSources(collection, sources, deepMergerWith(merger));
+  }
+
+  function mergeWithSources(collection, sources, merger) {
+    if (!isDataStructure(collection)) {
+      throw new TypeError(
+        'Cannot merge into non-data-structure value: ' + collection
+      );
+    }
+    if (isImmutable(collection)) {
+      return typeof merger === 'function' && collection.mergeWith
+        ? collection.mergeWith.apply(collection, [ merger ].concat( sources ))
+        : collection.merge
+        ? collection.merge.apply(collection, sources)
+        : collection.concat.apply(collection, sources);
+    }
+    var isArray = Array.isArray(collection);
+    var merged = collection;
+    var Collection = isArray ? IndexedCollection : KeyedCollection;
+    var mergeItem = isArray
+      ? function (value) {
+          // Copy on write
+          if (merged === collection) {
+            merged = shallowCopy(merged);
+          }
+          merged.push(value);
+        }
+      : function (value, key) {
+          var hasVal = hasOwnProperty.call(merged, key);
+          var nextVal =
+            hasVal && merger ? merger(merged[key], value, key) : value;
+          if (!hasVal || nextVal !== merged[key]) {
+            // Copy on write
+            if (merged === collection) {
+              merged = shallowCopy(merged);
+            }
+            merged[key] = nextVal;
+          }
+        };
+    for (var i = 0; i < sources.length; i++) {
+      Collection(sources[i]).forEach(mergeItem);
+    }
+    return merged;
+  }
+
+  function deepMergerWith(merger) {
+    function deepMerger(oldValue, newValue, key) {
+      return isDataStructure(oldValue) &&
+        isDataStructure(newValue) &&
+        areMergeable(oldValue, newValue)
+        ? mergeWithSources(oldValue, [newValue], deepMerger)
+        : merger
+        ? merger(oldValue, newValue, key)
+        : newValue;
+    }
+    return deepMerger;
+  }
+
+  /**
+   * It's unclear what the desired behavior is for merging two collections that
+   * fall into separate categories between keyed, indexed, or set-like, so we only
+   * consider them mergeable if they fall into the same category.
+   */
+  function areMergeable(oldDataStructure, newDataStructure) {
+    var oldSeq = Seq(oldDataStructure);
+    var newSeq = Seq(newDataStructure);
+    // This logic assumes that a sequence can only fall into one of the three
+    // categories mentioned above (since there's no `isSetLike()` method).
+    return (
+      isIndexed(oldSeq) === isIndexed(newSeq) &&
+      isKeyed(oldSeq) === isKeyed(newSeq)
+    );
+  }
+
+  function mergeDeep() {
+    var iters = [], len = arguments.length;
+    while ( len-- ) iters[ len ] = arguments[ len ];
+
+    return mergeDeepWithSources(this, iters);
+  }
+
+  function mergeDeepWith(merger) {
+    var iters = [], len = arguments.length - 1;
+    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+    return mergeDeepWithSources(this, iters, merger);
+  }
+
+  function mergeIn(keyPath) {
+    var iters = [], len = arguments.length - 1;
+    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+    return updateIn$1(this, keyPath, emptyMap(), function (m) { return mergeWithSources(m, iters); });
+  }
+
+  function mergeDeepIn(keyPath) {
+    var iters = [], len = arguments.length - 1;
+    while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];
+
+    return updateIn$1(this, keyPath, emptyMap(), function (m) { return mergeDeepWithSources(m, iters); }
+    );
+  }
+
+  function withMutations(fn) {
+    var mutable = this.asMutable();
+    fn(mutable);
+    return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;
+  }
+
+  function asMutable() {
+    return this.__ownerID ? this : this.__ensureOwner(new OwnerID());
+  }
+
+  function asImmutable() {
+    return this.__ensureOwner();
+  }
+
+  function wasAltered() {
+    return this.__altered;
+  }
+
+  var Map = /*@__PURE__*/(function (KeyedCollection) {
+    function Map(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptyMap()
+        : isMap(value) && !isOrdered(value)
+        ? value
+        : emptyMap().withMutations(function (map) {
+            var iter = KeyedCollection(value);
+            assertNotInfinite(iter.size);
+            iter.forEach(function (v, k) { return map.set(k, v); });
+          });
+    }
+
+    if ( KeyedCollection ) Map.__proto__ = KeyedCollection;
+    Map.prototype = Object.create( KeyedCollection && KeyedCollection.prototype );
+    Map.prototype.constructor = Map;
+
+    Map.of = function of () {
+      var keyValues = [], len = arguments.length;
+      while ( len-- ) keyValues[ len ] = arguments[ len ];
+
+      return emptyMap().withMutations(function (map) {
+        for (var i = 0; i < keyValues.length; i += 2) {
+          if (i + 1 >= keyValues.length) {
+            throw new Error('Missing value for key: ' + keyValues[i]);
+          }
+          map.set(keyValues[i], keyValues[i + 1]);
+        }
+      });
+    };
+
+    Map.prototype.toString = function toString () {
+      return this.__toString('Map {', '}');
+    };
+
+    // @pragma Access
+
+    Map.prototype.get = function get (k, notSetValue) {
+      return this._root
+        ? this._root.get(0, undefined, k, notSetValue)
+        : notSetValue;
+    };
+
+    // @pragma Modification
+
+    Map.prototype.set = function set (k, v) {
+      return updateMap(this, k, v);
+    };
+
+    Map.prototype.remove = function remove (k) {
+      return updateMap(this, k, NOT_SET);
+    };
+
+    Map.prototype.deleteAll = function deleteAll (keys) {
+      var collection = Collection(keys);
+
+      if (collection.size === 0) {
+        return this;
+      }
+
+      return this.withMutations(function (map) {
+        collection.forEach(function (key) { return map.remove(key); });
+      });
+    };
+
+    Map.prototype.clear = function clear () {
+      if (this.size === 0) {
+        return this;
+      }
+      if (this.__ownerID) {
+        this.size = 0;
+        this._root = null;
+        this.__hash = undefined;
+        this.__altered = true;
+        return this;
+      }
+      return emptyMap();
+    };
+
+    // @pragma Composition
+
+    Map.prototype.sort = function sort (comparator) {
+      // Late binding
+      return OrderedMap(sortFactory(this, comparator));
+    };
+
+    Map.prototype.sortBy = function sortBy (mapper, comparator) {
+      // Late binding
+      return OrderedMap(sortFactory(this, comparator, mapper));
+    };
+
+    Map.prototype.map = function map (mapper, context) {
+      var this$1$1 = this;
+
+      return this.withMutations(function (map) {
+        map.forEach(function (value, key) {
+          map.set(key, mapper.call(context, value, key, this$1$1));
+        });
+      });
+    };
+
+    // @pragma Mutability
+
+    Map.prototype.__iterator = function __iterator (type, reverse) {
+      return new MapIterator(this, type, reverse);
+    };
+
+    Map.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      var iterations = 0;
+      this._root &&
+        this._root.iterate(function (entry) {
+          iterations++;
+          return fn(entry[1], entry[0], this$1$1);
+        }, reverse);
+      return iterations;
+    };
+
+    Map.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+      if (ownerID === this.__ownerID) {
+        return this;
+      }
+      if (!ownerID) {
+        if (this.size === 0) {
+          return emptyMap();
+        }
+        this.__ownerID = ownerID;
+        this.__altered = false;
+        return this;
+      }
+      return makeMap(this.size, this._root, ownerID, this.__hash);
+    };
+
+    return Map;
+  }(KeyedCollection));
+
+  Map.isMap = isMap;
+
+  var MapPrototype = Map.prototype;
+  MapPrototype[IS_MAP_SYMBOL] = true;
+  MapPrototype[DELETE] = MapPrototype.remove;
+  MapPrototype.removeAll = MapPrototype.deleteAll;
+  MapPrototype.setIn = setIn;
+  MapPrototype.removeIn = MapPrototype.deleteIn = deleteIn;
+  MapPrototype.update = update;
+  MapPrototype.updateIn = updateIn;
+  MapPrototype.merge = MapPrototype.concat = merge$1;
+  MapPrototype.mergeWith = mergeWith$1;
+  MapPrototype.mergeDeep = mergeDeep;
+  MapPrototype.mergeDeepWith = mergeDeepWith;
+  MapPrototype.mergeIn = mergeIn;
+  MapPrototype.mergeDeepIn = mergeDeepIn;
+  MapPrototype.withMutations = withMutations;
+  MapPrototype.wasAltered = wasAltered;
+  MapPrototype.asImmutable = asImmutable;
+  MapPrototype['@@transducer/init'] = MapPrototype.asMutable = asMutable;
+  MapPrototype['@@transducer/step'] = function (result, arr) {
+    return result.set(arr[0], arr[1]);
+  };
+  MapPrototype['@@transducer/result'] = function (obj) {
+    return obj.asImmutable();
+  };
+
+  // #pragma Trie Nodes
+
+  var ArrayMapNode = function ArrayMapNode(ownerID, entries) {
+    this.ownerID = ownerID;
+    this.entries = entries;
+  };
+
+  ArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+    var entries = this.entries;
+    for (var ii = 0, len = entries.length; ii < len; ii++) {
+      if (is(key, entries[ii][0])) {
+        return entries[ii][1];
+      }
+    }
+    return notSetValue;
+  };
+
+  ArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+    var removed = value === NOT_SET;
+
+    var entries = this.entries;
+    var idx = 0;
+    var len = entries.length;
+    for (; idx < len; idx++) {
+      if (is(key, entries[idx][0])) {
+        break;
+      }
+    }
+    var exists = idx < len;
+
+    if (exists ? entries[idx][1] === value : removed) {
+      return this;
+    }
+
+    SetRef(didAlter);
+    (removed || !exists) && SetRef(didChangeSize);
+
+    if (removed && entries.length === 1) {
+      return; // undefined
+    }
+
+    if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {
+      return createNodes(ownerID, entries, key, value);
+    }
+
+    var isEditable = ownerID && ownerID === this.ownerID;
+    var newEntries = isEditable ? entries : arrCopy(entries);
+
+    if (exists) {
+      if (removed) {
+        idx === len - 1
+          ? newEntries.pop()
+          : (newEntries[idx] = newEntries.pop());
+      } else {
+        newEntries[idx] = [key, value];
+      }
+    } else {
+      newEntries.push([key, value]);
+    }
+
+    if (isEditable) {
+      this.entries = newEntries;
+      return this;
+    }
+
+    return new ArrayMapNode(ownerID, newEntries);
+  };
+
+  var BitmapIndexedNode = function BitmapIndexedNode(ownerID, bitmap, nodes) {
+    this.ownerID = ownerID;
+    this.bitmap = bitmap;
+    this.nodes = nodes;
+  };
+
+  BitmapIndexedNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+    if (keyHash === undefined) {
+      keyHash = hash(key);
+    }
+    var bit = 1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK);
+    var bitmap = this.bitmap;
+    return (bitmap & bit) === 0
+      ? notSetValue
+      : this.nodes[popCount(bitmap & (bit - 1))].get(
+          shift + SHIFT,
+          keyHash,
+          key,
+          notSetValue
+        );
+  };
+
+  BitmapIndexedNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+    if (keyHash === undefined) {
+      keyHash = hash(key);
+    }
+    var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+    var bit = 1 << keyHashFrag;
+    var bitmap = this.bitmap;
+    var exists = (bitmap & bit) !== 0;
+
+    if (!exists && value === NOT_SET) {
+      return this;
+    }
+
+    var idx = popCount(bitmap & (bit - 1));
+    var nodes = this.nodes;
+    var node = exists ? nodes[idx] : undefined;
+    var newNode = updateNode(
+      node,
+      ownerID,
+      shift + SHIFT,
+      keyHash,
+      key,
+      value,
+      didChangeSize,
+      didAlter
+    );
+
+    if (newNode === node) {
+      return this;
+    }
+
+    if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {
+      return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);
+    }
+
+    if (
+      exists &&
+      !newNode &&
+      nodes.length === 2 &&
+      isLeafNode(nodes[idx ^ 1])
+    ) {
+      return nodes[idx ^ 1];
+    }
+
+    if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {
+      return newNode;
+    }
+
+    var isEditable = ownerID && ownerID === this.ownerID;
+    var newBitmap = exists ? (newNode ? bitmap : bitmap ^ bit) : bitmap | bit;
+    var newNodes = exists
+      ? newNode
+        ? setAt(nodes, idx, newNode, isEditable)
+        : spliceOut(nodes, idx, isEditable)
+      : spliceIn(nodes, idx, newNode, isEditable);
+
+    if (isEditable) {
+      this.bitmap = newBitmap;
+      this.nodes = newNodes;
+      return this;
+    }
+
+    return new BitmapIndexedNode(ownerID, newBitmap, newNodes);
+  };
+
+  var HashArrayMapNode = function HashArrayMapNode(ownerID, count, nodes) {
+    this.ownerID = ownerID;
+    this.count = count;
+    this.nodes = nodes;
+  };
+
+  HashArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+    if (keyHash === undefined) {
+      keyHash = hash(key);
+    }
+    var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+    var node = this.nodes[idx];
+    return node
+      ? node.get(shift + SHIFT, keyHash, key, notSetValue)
+      : notSetValue;
+  };
+
+  HashArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+    if (keyHash === undefined) {
+      keyHash = hash(key);
+    }
+    var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+    var removed = value === NOT_SET;
+    var nodes = this.nodes;
+    var node = nodes[idx];
+
+    if (removed && !node) {
+      return this;
+    }
+
+    var newNode = updateNode(
+      node,
+      ownerID,
+      shift + SHIFT,
+      keyHash,
+      key,
+      value,
+      didChangeSize,
+      didAlter
+    );
+    if (newNode === node) {
+      return this;
+    }
+
+    var newCount = this.count;
+    if (!node) {
+      newCount++;
+    } else if (!newNode) {
+      newCount--;
+      if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {
+        return packNodes(ownerID, nodes, newCount, idx);
+      }
+    }
+
+    var isEditable = ownerID && ownerID === this.ownerID;
+    var newNodes = setAt(nodes, idx, newNode, isEditable);
+
+    if (isEditable) {
+      this.count = newCount;
+      this.nodes = newNodes;
+      return this;
+    }
+
+    return new HashArrayMapNode(ownerID, newCount, newNodes);
+  };
+
+  var HashCollisionNode = function HashCollisionNode(ownerID, keyHash, entries) {
+    this.ownerID = ownerID;
+    this.keyHash = keyHash;
+    this.entries = entries;
+  };
+
+  HashCollisionNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+    var entries = this.entries;
+    for (var ii = 0, len = entries.length; ii < len; ii++) {
+      if (is(key, entries[ii][0])) {
+        return entries[ii][1];
+      }
+    }
+    return notSetValue;
+  };
+
+  HashCollisionNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+    if (keyHash === undefined) {
+      keyHash = hash(key);
+    }
+
+    var removed = value === NOT_SET;
+
+    if (keyHash !== this.keyHash) {
+      if (removed) {
+        return this;
+      }
+      SetRef(didAlter);
+      SetRef(didChangeSize);
+      return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);
+    }
+
+    var entries = this.entries;
+    var idx = 0;
+    var len = entries.length;
+    for (; idx < len; idx++) {
+      if (is(key, entries[idx][0])) {
+        break;
+      }
+    }
+    var exists = idx < len;
+
+    if (exists ? entries[idx][1] === value : removed) {
+      return this;
+    }
+
+    SetRef(didAlter);
+    (removed || !exists) && SetRef(didChangeSize);
+
+    if (removed && len === 2) {
+      return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);
+    }
+
+    var isEditable = ownerID && ownerID === this.ownerID;
+    var newEntries = isEditable ? entries : arrCopy(entries);
+
+    if (exists) {
+      if (removed) {
+        idx === len - 1
+          ? newEntries.pop()
+          : (newEntries[idx] = newEntries.pop());
+      } else {
+        newEntries[idx] = [key, value];
+      }
+    } else {
+      newEntries.push([key, value]);
+    }
+
+    if (isEditable) {
+      this.entries = newEntries;
+      return this;
+    }
+
+    return new HashCollisionNode(ownerID, this.keyHash, newEntries);
+  };
+
+  var ValueNode = function ValueNode(ownerID, keyHash, entry) {
+    this.ownerID = ownerID;
+    this.keyHash = keyHash;
+    this.entry = entry;
+  };
+
+  ValueNode.prototype.get = function get (shift, keyHash, key, notSetValue) {
+    return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
+  };
+
+  ValueNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
+    var removed = value === NOT_SET;
+    var keyMatch = is(key, this.entry[0]);
+    if (keyMatch ? value === this.entry[1] : removed) {
+      return this;
+    }
+
+    SetRef(didAlter);
+
+    if (removed) {
+      SetRef(didChangeSize);
+      return; // undefined
+    }
+
+    if (keyMatch) {
+      if (ownerID && ownerID === this.ownerID) {
+        this.entry[1] = value;
+        return this;
+      }
+      return new ValueNode(ownerID, this.keyHash, [key, value]);
+    }
+
+    SetRef(didChangeSize);
+    return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);
+  };
+
+  // #pragma Iterators
+
+  ArrayMapNode.prototype.iterate = HashCollisionNode.prototype.iterate =
+    function (fn, reverse) {
+      var entries = this.entries;
+      for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {
+        if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {
+          return false;
+        }
+      }
+    };
+
+  BitmapIndexedNode.prototype.iterate = HashArrayMapNode.prototype.iterate =
+    function (fn, reverse) {
+      var nodes = this.nodes;
+      for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {
+        var node = nodes[reverse ? maxIndex - ii : ii];
+        if (node && node.iterate(fn, reverse) === false) {
+          return false;
+        }
+      }
+    };
+
+  // eslint-disable-next-line no-unused-vars
+  ValueNode.prototype.iterate = function (fn, reverse) {
+    return fn(this.entry);
+  };
+
+  var MapIterator = /*@__PURE__*/(function (Iterator) {
+    function MapIterator(map, type, reverse) {
+      this._type = type;
+      this._reverse = reverse;
+      this._stack = map._root && mapIteratorFrame(map._root);
+    }
+
+    if ( Iterator ) MapIterator.__proto__ = Iterator;
+    MapIterator.prototype = Object.create( Iterator && Iterator.prototype );
+    MapIterator.prototype.constructor = MapIterator;
+
+    MapIterator.prototype.next = function next () {
+      var type = this._type;
+      var stack = this._stack;
+      while (stack) {
+        var node = stack.node;
+        var index = stack.index++;
+        var maxIndex = (void 0);
+        if (node.entry) {
+          if (index === 0) {
+            return mapIteratorValue(type, node.entry);
+          }
+        } else if (node.entries) {
+          maxIndex = node.entries.length - 1;
+          if (index <= maxIndex) {
+            return mapIteratorValue(
+              type,
+              node.entries[this._reverse ? maxIndex - index : index]
+            );
+          }
+        } else {
+          maxIndex = node.nodes.length - 1;
+          if (index <= maxIndex) {
+            var subNode = node.nodes[this._reverse ? maxIndex - index : index];
+            if (subNode) {
+              if (subNode.entry) {
+                return mapIteratorValue(type, subNode.entry);
+              }
+              stack = this._stack = mapIteratorFrame(subNode, stack);
+            }
+            continue;
+          }
+        }
+        stack = this._stack = this._stack.__prev;
+      }
+      return iteratorDone();
+    };
+
+    return MapIterator;
+  }(Iterator));
+
+  function mapIteratorValue(type, entry) {
+    return iteratorValue(type, entry[0], entry[1]);
+  }
+
+  function mapIteratorFrame(node, prev) {
+    return {
+      node: node,
+      index: 0,
+      __prev: prev,
+    };
+  }
+
+  function makeMap(size, root, ownerID, hash) {
+    var map = Object.create(MapPrototype);
+    map.size = size;
+    map._root = root;
+    map.__ownerID = ownerID;
+    map.__hash = hash;
+    map.__altered = false;
+    return map;
+  }
+
+  var EMPTY_MAP;
+  function emptyMap() {
+    return EMPTY_MAP || (EMPTY_MAP = makeMap(0));
+  }
+
+  function updateMap(map, k, v) {
+    var newRoot;
+    var newSize;
+    if (!map._root) {
+      if (v === NOT_SET) {
+        return map;
+      }
+      newSize = 1;
+      newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);
+    } else {
+      var didChangeSize = MakeRef();
+      var didAlter = MakeRef();
+      newRoot = updateNode(
+        map._root,
+        map.__ownerID,
+        0,
+        undefined,
+        k,
+        v,
+        didChangeSize,
+        didAlter
+      );
+      if (!didAlter.value) {
+        return map;
+      }
+      newSize = map.size + (didChangeSize.value ? (v === NOT_SET ? -1 : 1) : 0);
+    }
+    if (map.__ownerID) {
+      map.size = newSize;
+      map._root = newRoot;
+      map.__hash = undefined;
+      map.__altered = true;
+      return map;
+    }
+    return newRoot ? makeMap(newSize, newRoot) : emptyMap();
+  }
+
+  function updateNode(
+    node,
+    ownerID,
+    shift,
+    keyHash,
+    key,
+    value,
+    didChangeSize,
+    didAlter
+  ) {
+    if (!node) {
+      if (value === NOT_SET) {
+        return node;
+      }
+      SetRef(didAlter);
+      SetRef(didChangeSize);
+      return new ValueNode(ownerID, keyHash, [key, value]);
+    }
+    return node.update(
+      ownerID,
+      shift,
+      keyHash,
+      key,
+      value,
+      didChangeSize,
+      didAlter
+    );
+  }
+
+  function isLeafNode(node) {
+    return (
+      node.constructor === ValueNode || node.constructor === HashCollisionNode
+    );
+  }
+
+  function mergeIntoNode(node, ownerID, shift, keyHash, entry) {
+    if (node.keyHash === keyHash) {
+      return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);
+    }
+
+    var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;
+    var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;
+
+    var newNode;
+    var nodes =
+      idx1 === idx2
+        ? [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)]
+        : ((newNode = new ValueNode(ownerID, keyHash, entry)),
+          idx1 < idx2 ? [node, newNode] : [newNode, node]);
+
+    return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);
+  }
+
+  function createNodes(ownerID, entries, key, value) {
+    if (!ownerID) {
+      ownerID = new OwnerID();
+    }
+    var node = new ValueNode(ownerID, hash(key), [key, value]);
+    for (var ii = 0; ii < entries.length; ii++) {
+      var entry = entries[ii];
+      node = node.update(ownerID, 0, undefined, entry[0], entry[1]);
+    }
+    return node;
+  }
+
+  function packNodes(ownerID, nodes, count, excluding) {
+    var bitmap = 0;
+    var packedII = 0;
+    var packedNodes = new Array(count);
+    for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {
+      var node = nodes[ii];
+      if (node !== undefined && ii !== excluding) {
+        bitmap |= bit;
+        packedNodes[packedII++] = node;
+      }
+    }
+    return new BitmapIndexedNode(ownerID, bitmap, packedNodes);
+  }
+
+  function expandNodes(ownerID, nodes, bitmap, including, node) {
+    var count = 0;
+    var expandedNodes = new Array(SIZE);
+    for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {
+      expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;
+    }
+    expandedNodes[including] = node;
+    return new HashArrayMapNode(ownerID, count + 1, expandedNodes);
+  }
+
+  function popCount(x) {
+    x -= (x >> 1) & 0x55555555;
+    x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
+    x = (x + (x >> 4)) & 0x0f0f0f0f;
+    x += x >> 8;
+    x += x >> 16;
+    return x & 0x7f;
+  }
+
+  function setAt(array, idx, val, canEdit) {
+    var newArray = canEdit ? array : arrCopy(array);
+    newArray[idx] = val;
+    return newArray;
+  }
+
+  function spliceIn(array, idx, val, canEdit) {
+    var newLen = array.length + 1;
+    if (canEdit && idx + 1 === newLen) {
+      array[idx] = val;
+      return array;
+    }
+    var newArray = new Array(newLen);
+    var after = 0;
+    for (var ii = 0; ii < newLen; ii++) {
+      if (ii === idx) {
+        newArray[ii] = val;
+        after = -1;
+      } else {
+        newArray[ii] = array[ii + after];
+      }
+    }
+    return newArray;
+  }
+
+  function spliceOut(array, idx, canEdit) {
+    var newLen = array.length - 1;
+    if (canEdit && idx === newLen) {
+      array.pop();
+      return array;
+    }
+    var newArray = new Array(newLen);
+    var after = 0;
+    for (var ii = 0; ii < newLen; ii++) {
+      if (ii === idx) {
+        after = 1;
+      }
+      newArray[ii] = array[ii + after];
+    }
+    return newArray;
+  }
+
+  var MAX_ARRAY_MAP_SIZE = SIZE / 4;
+  var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;
+  var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;
+
+  var IS_LIST_SYMBOL = '@@__IMMUTABLE_LIST__@@';
+
+  function isList(maybeList) {
+    return Boolean(maybeList && maybeList[IS_LIST_SYMBOL]);
+  }
+
+  var List = /*@__PURE__*/(function (IndexedCollection) {
+    function List(value) {
+      var empty = emptyList();
+      if (value === undefined || value === null) {
+        // eslint-disable-next-line no-constructor-return
+        return empty;
+      }
+      if (isList(value)) {
+        // eslint-disable-next-line no-constructor-return
+        return value;
+      }
+      var iter = IndexedCollection(value);
+      var size = iter.size;
+      if (size === 0) {
+        // eslint-disable-next-line no-constructor-return
+        return empty;
+      }
+      assertNotInfinite(size);
+      if (size > 0 && size < SIZE) {
+        // eslint-disable-next-line no-constructor-return
+        return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));
+      }
+      // eslint-disable-next-line no-constructor-return
+      return empty.withMutations(function (list) {
+        list.setSize(size);
+        iter.forEach(function (v, i) { return list.set(i, v); });
+      });
+    }
+
+    if ( IndexedCollection ) List.__proto__ = IndexedCollection;
+    List.prototype = Object.create( IndexedCollection && IndexedCollection.prototype );
+    List.prototype.constructor = List;
+
+    List.of = function of (/*...values*/) {
+      return this(arguments);
+    };
+
+    List.prototype.toString = function toString () {
+      return this.__toString('List [', ']');
+    };
+
+    // @pragma Access
+
+    List.prototype.get = function get (index, notSetValue) {
+      index = wrapIndex(this, index);
+      if (index >= 0 && index < this.size) {
+        index += this._origin;
+        var node = listNodeFor(this, index);
+        return node && node.array[index & MASK];
+      }
+      return notSetValue;
+    };
+
+    // @pragma Modification
+
+    List.prototype.set = function set (index, value) {
+      return updateList(this, index, value);
+    };
+
+    List.prototype.remove = function remove (index) {
+      return !this.has(index)
+        ? this
+        : index === 0
+        ? this.shift()
+        : index === this.size - 1
+        ? this.pop()
+        : this.splice(index, 1);
+    };
+
+    List.prototype.insert = function insert (index, value) {
+      return this.splice(index, 0, value);
+    };
+
+    List.prototype.clear = function clear () {
+      if (this.size === 0) {
+        return this;
+      }
+      if (this.__ownerID) {
+        this.size = this._origin = this._capacity = 0;
+        this._level = SHIFT;
+        this._root = this._tail = this.__hash = undefined;
+        this.__altered = true;
+        return this;
+      }
+      return emptyList();
+    };
+
+    List.prototype.push = function push (/*...values*/) {
+      var values = arguments;
+      var oldSize = this.size;
+      return this.withMutations(function (list) {
+        setListBounds(list, 0, oldSize + values.length);
+        for (var ii = 0; ii < values.length; ii++) {
+          list.set(oldSize + ii, values[ii]);
+        }
+      });
+    };
+
+    List.prototype.pop = function pop () {
+      return setListBounds(this, 0, -1);
+    };
+
+    List.prototype.unshift = function unshift (/*...values*/) {
+      var values = arguments;
+      return this.withMutations(function (list) {
+        setListBounds(list, -values.length);
+        for (var ii = 0; ii < values.length; ii++) {
+          list.set(ii, values[ii]);
+        }
+      });
+    };
+
+    List.prototype.shift = function shift () {
+      return setListBounds(this, 1);
+    };
+
+    // @pragma Composition
+
+    List.prototype.concat = function concat (/*...collections*/) {
+      var arguments$1 = arguments;
+
+      var seqs = [];
+      for (var i = 0; i < arguments.length; i++) {
+        var argument = arguments$1[i];
+        var seq = IndexedCollection(
+          typeof argument !== 'string' && hasIterator(argument)
+            ? argument
+            : [argument]
+        );
+        if (seq.size !== 0) {
+          seqs.push(seq);
+        }
+      }
+      if (seqs.length === 0) {
+        return this;
+      }
+      if (this.size === 0 && !this.__ownerID && seqs.length === 1) {
+        return this.constructor(seqs[0]);
+      }
+      return this.withMutations(function (list) {
+        seqs.forEach(function (seq) { return seq.forEach(function (value) { return list.push(value); }); });
+      });
+    };
+
+    List.prototype.setSize = function setSize (size) {
+      return setListBounds(this, 0, size);
+    };
+
+    List.prototype.map = function map (mapper, context) {
+      var this$1$1 = this;
+
+      return this.withMutations(function (list) {
+        for (var i = 0; i < this$1$1.size; i++) {
+          list.set(i, mapper.call(context, list.get(i), i, this$1$1));
+        }
+      });
+    };
+
+    // @pragma Iteration
+
+    List.prototype.slice = function slice (begin, end) {
+      var size = this.size;
+      if (wholeSlice(begin, end, size)) {
+        return this;
+      }
+      return setListBounds(
+        this,
+        resolveBegin(begin, size),
+        resolveEnd(end, size)
+      );
+    };
+
+    List.prototype.__iterator = function __iterator (type, reverse) {
+      var index = reverse ? this.size : 0;
+      var values = iterateList(this, reverse);
+      return new Iterator(function () {
+        var value = values();
+        return value === DONE
+          ? iteratorDone()
+          : iteratorValue(type, reverse ? --index : index++, value);
+      });
+    };
+
+    List.prototype.__iterate = function __iterate (fn, reverse) {
+      var index = reverse ? this.size : 0;
+      var values = iterateList(this, reverse);
+      var value;
+      while ((value = values()) !== DONE) {
+        if (fn(value, reverse ? --index : index++, this) === false) {
+          break;
+        }
+      }
+      return index;
+    };
+
+    List.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+      if (ownerID === this.__ownerID) {
+        return this;
+      }
+      if (!ownerID) {
+        if (this.size === 0) {
+          return emptyList();
+        }
+        this.__ownerID = ownerID;
+        this.__altered = false;
+        return this;
+      }
+      return makeList(
+        this._origin,
+        this._capacity,
+        this._level,
+        this._root,
+        this._tail,
+        ownerID,
+        this.__hash
+      );
+    };
+
+    return List;
+  }(IndexedCollection));
+
+  List.isList = isList;
+
+  var ListPrototype = List.prototype;
+  ListPrototype[IS_LIST_SYMBOL] = true;
+  ListPrototype[DELETE] = ListPrototype.remove;
+  ListPrototype.merge = ListPrototype.concat;
+  ListPrototype.setIn = setIn;
+  ListPrototype.deleteIn = ListPrototype.removeIn = deleteIn;
+  ListPrototype.update = update;
+  ListPrototype.updateIn = updateIn;
+  ListPrototype.mergeIn = mergeIn;
+  ListPrototype.mergeDeepIn = mergeDeepIn;
+  ListPrototype.withMutations = withMutations;
+  ListPrototype.wasAltered = wasAltered;
+  ListPrototype.asImmutable = asImmutable;
+  ListPrototype['@@transducer/init'] = ListPrototype.asMutable = asMutable;
+  ListPrototype['@@transducer/step'] = function (result, arr) {
+    return result.push(arr);
+  };
+  ListPrototype['@@transducer/result'] = function (obj) {
+    return obj.asImmutable();
+  };
+
+  var VNode = function VNode(array, ownerID) {
+    this.array = array;
+    this.ownerID = ownerID;
+  };
+
+  // TODO: seems like these methods are very similar
+
+  VNode.prototype.removeBefore = function removeBefore (ownerID, level, index) {
+    if (index === level ? 1 << level : this.array.length === 0) {
+      return this;
+    }
+    var originIndex = (index >>> level) & MASK;
+    if (originIndex >= this.array.length) {
+      return new VNode([], ownerID);
+    }
+    var removingFirst = originIndex === 0;
+    var newChild;
+    if (level > 0) {
+      var oldChild = this.array[originIndex];
+      newChild =
+        oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);
+      if (newChild === oldChild && removingFirst) {
+        return this;
+      }
+    }
+    if (removingFirst && !newChild) {
+      return this;
+    }
+    var editable = editableVNode(this, ownerID);
+    if (!removingFirst) {
+      for (var ii = 0; ii < originIndex; ii++) {
+        editable.array[ii] = undefined;
+      }
+    }
+    if (newChild) {
+      editable.array[originIndex] = newChild;
+    }
+    return editable;
+  };
+
+  VNode.prototype.removeAfter = function removeAfter (ownerID, level, index) {
+    if (index === (level ? 1 << level : 0) || this.array.length === 0) {
+      return this;
+    }
+    var sizeIndex = ((index - 1) >>> level) & MASK;
+    if (sizeIndex >= this.array.length) {
+      return this;
+    }
+
+    var newChild;
+    if (level > 0) {
+      var oldChild = this.array[sizeIndex];
+      newChild =
+        oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);
+      if (newChild === oldChild && sizeIndex === this.array.length - 1) {
+        return this;
+      }
+    }
+
+    var editable = editableVNode(this, ownerID);
+    editable.array.splice(sizeIndex + 1);
+    if (newChild) {
+      editable.array[sizeIndex] = newChild;
+    }
+    return editable;
+  };
+
+  var DONE = {};
+
+  function iterateList(list, reverse) {
+    var left = list._origin;
+    var right = list._capacity;
+    var tailPos = getTailOffset(right);
+    var tail = list._tail;
+
+    return iterateNodeOrLeaf(list._root, list._level, 0);
+
+    function iterateNodeOrLeaf(node, level, offset) {
+      return level === 0
+        ? iterateLeaf(node, offset)
+        : iterateNode(node, level, offset);
+    }
+
+    function iterateLeaf(node, offset) {
+      var array = offset === tailPos ? tail && tail.array : node && node.array;
+      var from = offset > left ? 0 : left - offset;
+      var to = right - offset;
+      if (to > SIZE) {
+        to = SIZE;
+      }
+      return function () {
+        if (from === to) {
+          return DONE;
+        }
+        var idx = reverse ? --to : from++;
+        return array && array[idx];
+      };
+    }
+
+    function iterateNode(node, level, offset) {
+      var values;
+      var array = node && node.array;
+      var from = offset > left ? 0 : (left - offset) >> level;
+      var to = ((right - offset) >> level) + 1;
+      if (to > SIZE) {
+        to = SIZE;
+      }
+      return function () {
+        while (true) {
+          if (values) {
+            var value = values();
+            if (value !== DONE) {
+              return value;
+            }
+            values = null;
+          }
+          if (from === to) {
+            return DONE;
+          }
+          var idx = reverse ? --to : from++;
+          values = iterateNodeOrLeaf(
+            array && array[idx],
+            level - SHIFT,
+            offset + (idx << level)
+          );
+        }
+      };
+    }
+  }
+
+  function makeList(origin, capacity, level, root, tail, ownerID, hash) {
+    var list = Object.create(ListPrototype);
+    list.size = capacity - origin;
+    list._origin = origin;
+    list._capacity = capacity;
+    list._level = level;
+    list._root = root;
+    list._tail = tail;
+    list.__ownerID = ownerID;
+    list.__hash = hash;
+    list.__altered = false;
+    return list;
+  }
+
+  var EMPTY_LIST;
+  function emptyList() {
+    return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));
+  }
+
+  function updateList(list, index, value) {
+    index = wrapIndex(list, index);
+
+    if (index !== index) {
+      return list;
+    }
+
+    if (index >= list.size || index < 0) {
+      return list.withMutations(function (list) {
+        index < 0
+          ? setListBounds(list, index).set(0, value)
+          : setListBounds(list, 0, index + 1).set(index, value);
+      });
+    }
+
+    index += list._origin;
+
+    var newTail = list._tail;
+    var newRoot = list._root;
+    var didAlter = MakeRef();
+    if (index >= getTailOffset(list._capacity)) {
+      newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);
+    } else {
+      newRoot = updateVNode(
+        newRoot,
+        list.__ownerID,
+        list._level,
+        index,
+        value,
+        didAlter
+      );
+    }
+
+    if (!didAlter.value) {
+      return list;
+    }
+
+    if (list.__ownerID) {
+      list._root = newRoot;
+      list._tail = newTail;
+      list.__hash = undefined;
+      list.__altered = true;
+      return list;
+    }
+    return makeList(list._origin, list._capacity, list._level, newRoot, newTail);
+  }
+
+  function updateVNode(node, ownerID, level, index, value, didAlter) {
+    var idx = (index >>> level) & MASK;
+    var nodeHas = node && idx < node.array.length;
+    if (!nodeHas && value === undefined) {
+      return node;
+    }
+
+    var newNode;
+
+    if (level > 0) {
+      var lowerNode = node && node.array[idx];
+      var newLowerNode = updateVNode(
+        lowerNode,
+        ownerID,
+        level - SHIFT,
+        index,
+        value,
+        didAlter
+      );
+      if (newLowerNode === lowerNode) {
+        return node;
+      }
+      newNode = editableVNode(node, ownerID);
+      newNode.array[idx] = newLowerNode;
+      return newNode;
+    }
+
+    if (nodeHas && node.array[idx] === value) {
+      return node;
+    }
+
+    if (didAlter) {
+      SetRef(didAlter);
+    }
+
+    newNode = editableVNode(node, ownerID);
+    if (value === undefined && idx === newNode.array.length - 1) {
+      newNode.array.pop();
+    } else {
+      newNode.array[idx] = value;
+    }
+    return newNode;
+  }
+
+  function editableVNode(node, ownerID) {
+    if (ownerID && node && ownerID === node.ownerID) {
+      return node;
+    }
+    return new VNode(node ? node.array.slice() : [], ownerID);
+  }
+
+  function listNodeFor(list, rawIndex) {
+    if (rawIndex >= getTailOffset(list._capacity)) {
+      return list._tail;
+    }
+    if (rawIndex < 1 << (list._level + SHIFT)) {
+      var node = list._root;
+      var level = list._level;
+      while (node && level > 0) {
+        node = node.array[(rawIndex >>> level) & MASK];
+        level -= SHIFT;
+      }
+      return node;
+    }
+  }
+
+  function setListBounds(list, begin, end) {
+    // Sanitize begin & end using this shorthand for ToInt32(argument)
+    // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32
+    if (begin !== undefined) {
+      begin |= 0;
+    }
+    if (end !== undefined) {
+      end |= 0;
+    }
+    var owner = list.__ownerID || new OwnerID();
+    var oldOrigin = list._origin;
+    var oldCapacity = list._capacity;
+    var newOrigin = oldOrigin + begin;
+    var newCapacity =
+      end === undefined
+        ? oldCapacity
+        : end < 0
+        ? oldCapacity + end
+        : oldOrigin + end;
+    if (newOrigin === oldOrigin && newCapacity === oldCapacity) {
+      return list;
+    }
+
+    // If it's going to end after it starts, it's empty.
+    if (newOrigin >= newCapacity) {
+      return list.clear();
+    }
+
+    var newLevel = list._level;
+    var newRoot = list._root;
+
+    // New origin might need creating a higher root.
+    var offsetShift = 0;
+    while (newOrigin + offsetShift < 0) {
+      newRoot = new VNode(
+        newRoot && newRoot.array.length ? [undefined, newRoot] : [],
+        owner
+      );
+      newLevel += SHIFT;
+      offsetShift += 1 << newLevel;
+    }
+    if (offsetShift) {
+      newOrigin += offsetShift;
+      oldOrigin += offsetShift;
+      newCapacity += offsetShift;
+      oldCapacity += offsetShift;
+    }
+
+    var oldTailOffset = getTailOffset(oldCapacity);
+    var newTailOffset = getTailOffset(newCapacity);
+
+    // New size might need creating a higher root.
+    while (newTailOffset >= 1 << (newLevel + SHIFT)) {
+      newRoot = new VNode(
+        newRoot && newRoot.array.length ? [newRoot] : [],
+        owner
+      );
+      newLevel += SHIFT;
+    }
+
+    // Locate or create the new tail.
+    var oldTail = list._tail;
+    var newTail =
+      newTailOffset < oldTailOffset
+        ? listNodeFor(list, newCapacity - 1)
+        : newTailOffset > oldTailOffset
+        ? new VNode([], owner)
+        : oldTail;
+
+    // Merge Tail into tree.
+    if (
+      oldTail &&
+      newTailOffset > oldTailOffset &&
+      newOrigin < oldCapacity &&
+      oldTail.array.length
+    ) {
+      newRoot = editableVNode(newRoot, owner);
+      var node = newRoot;
+      for (var level = newLevel; level > SHIFT; level -= SHIFT) {
+        var idx = (oldTailOffset >>> level) & MASK;
+        node = node.array[idx] = editableVNode(node.array[idx], owner);
+      }
+      node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;
+    }
+
+    // If the size has been reduced, there's a chance the tail needs to be trimmed.
+    if (newCapacity < oldCapacity) {
+      newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);
+    }
+
+    // If the new origin is within the tail, then we do not need a root.
+    if (newOrigin >= newTailOffset) {
+      newOrigin -= newTailOffset;
+      newCapacity -= newTailOffset;
+      newLevel = SHIFT;
+      newRoot = null;
+      newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);
+
+      // Otherwise, if the root has been trimmed, garbage collect.
+    } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {
+      offsetShift = 0;
+
+      // Identify the new top root node of the subtree of the old root.
+      while (newRoot) {
+        var beginIndex = (newOrigin >>> newLevel) & MASK;
+        if ((beginIndex !== newTailOffset >>> newLevel) & MASK) {
+          break;
+        }
+        if (beginIndex) {
+          offsetShift += (1 << newLevel) * beginIndex;
+        }
+        newLevel -= SHIFT;
+        newRoot = newRoot.array[beginIndex];
+      }
+
+      // Trim the new sides of the new root.
+      if (newRoot && newOrigin > oldOrigin) {
+        newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);
+      }
+      if (newRoot && newTailOffset < oldTailOffset) {
+        newRoot = newRoot.removeAfter(
+          owner,
+          newLevel,
+          newTailOffset - offsetShift
+        );
+      }
+      if (offsetShift) {
+        newOrigin -= offsetShift;
+        newCapacity -= offsetShift;
+      }
+    }
+
+    if (list.__ownerID) {
+      list.size = newCapacity - newOrigin;
+      list._origin = newOrigin;
+      list._capacity = newCapacity;
+      list._level = newLevel;
+      list._root = newRoot;
+      list._tail = newTail;
+      list.__hash = undefined;
+      list.__altered = true;
+      return list;
+    }
+    return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);
+  }
+
+  function getTailOffset(size) {
+    return size < SIZE ? 0 : ((size - 1) >>> SHIFT) << SHIFT;
+  }
+
+  var OrderedMap = /*@__PURE__*/(function (Map) {
+    function OrderedMap(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptyOrderedMap()
+        : isOrderedMap(value)
+        ? value
+        : emptyOrderedMap().withMutations(function (map) {
+            var iter = KeyedCollection(value);
+            assertNotInfinite(iter.size);
+            iter.forEach(function (v, k) { return map.set(k, v); });
+          });
+    }
+
+    if ( Map ) OrderedMap.__proto__ = Map;
+    OrderedMap.prototype = Object.create( Map && Map.prototype );
+    OrderedMap.prototype.constructor = OrderedMap;
+
+    OrderedMap.of = function of (/*...values*/) {
+      return this(arguments);
+    };
+
+    OrderedMap.prototype.toString = function toString () {
+      return this.__toString('OrderedMap {', '}');
+    };
+
+    // @pragma Access
+
+    OrderedMap.prototype.get = function get (k, notSetValue) {
+      var index = this._map.get(k);
+      return index !== undefined ? this._list.get(index)[1] : notSetValue;
+    };
+
+    // @pragma Modification
+
+    OrderedMap.prototype.clear = function clear () {
+      if (this.size === 0) {
+        return this;
+      }
+      if (this.__ownerID) {
+        this.size = 0;
+        this._map.clear();
+        this._list.clear();
+        this.__altered = true;
+        return this;
+      }
+      return emptyOrderedMap();
+    };
+
+    OrderedMap.prototype.set = function set (k, v) {
+      return updateOrderedMap(this, k, v);
+    };
+
+    OrderedMap.prototype.remove = function remove (k) {
+      return updateOrderedMap(this, k, NOT_SET);
+    };
+
+    OrderedMap.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      return this._list.__iterate(
+        function (entry) { return entry && fn(entry[1], entry[0], this$1$1); },
+        reverse
+      );
+    };
+
+    OrderedMap.prototype.__iterator = function __iterator (type, reverse) {
+      return this._list.fromEntrySeq().__iterator(type, reverse);
+    };
+
+    OrderedMap.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+      if (ownerID === this.__ownerID) {
+        return this;
+      }
+      var newMap = this._map.__ensureOwner(ownerID);
+      var newList = this._list.__ensureOwner(ownerID);
+      if (!ownerID) {
+        if (this.size === 0) {
+          return emptyOrderedMap();
+        }
+        this.__ownerID = ownerID;
+        this.__altered = false;
+        this._map = newMap;
+        this._list = newList;
+        return this;
+      }
+      return makeOrderedMap(newMap, newList, ownerID, this.__hash);
+    };
+
+    return OrderedMap;
+  }(Map));
+
+  OrderedMap.isOrderedMap = isOrderedMap;
+
+  OrderedMap.prototype[IS_ORDERED_SYMBOL] = true;
+  OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;
+
+  function makeOrderedMap(map, list, ownerID, hash) {
+    var omap = Object.create(OrderedMap.prototype);
+    omap.size = map ? map.size : 0;
+    omap._map = map;
+    omap._list = list;
+    omap.__ownerID = ownerID;
+    omap.__hash = hash;
+    omap.__altered = false;
+    return omap;
+  }
+
+  var EMPTY_ORDERED_MAP;
+  function emptyOrderedMap() {
+    return (
+      EMPTY_ORDERED_MAP ||
+      (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()))
+    );
+  }
+
+  function updateOrderedMap(omap, k, v) {
+    var map = omap._map;
+    var list = omap._list;
+    var i = map.get(k);
+    var has = i !== undefined;
+    var newMap;
+    var newList;
+    if (v === NOT_SET) {
+      // removed
+      if (!has) {
+        return omap;
+      }
+      if (list.size >= SIZE && list.size >= map.size * 2) {
+        newList = list.filter(function (entry, idx) { return entry !== undefined && i !== idx; });
+        newMap = newList
+          .toKeyedSeq()
+          .map(function (entry) { return entry[0]; })
+          .flip()
+          .toMap();
+        if (omap.__ownerID) {
+          newMap.__ownerID = newList.__ownerID = omap.__ownerID;
+        }
+      } else {
+        newMap = map.remove(k);
+        newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);
+      }
+    } else if (has) {
+      if (v === list.get(i)[1]) {
+        return omap;
+      }
+      newMap = map;
+      newList = list.set(i, [k, v]);
+    } else {
+      newMap = map.set(k, list.size);
+      newList = list.set(list.size, [k, v]);
+    }
+    if (omap.__ownerID) {
+      omap.size = newMap.size;
+      omap._map = newMap;
+      omap._list = newList;
+      omap.__hash = undefined;
+      omap.__altered = true;
+      return omap;
+    }
+    return makeOrderedMap(newMap, newList);
+  }
+
+  var IS_STACK_SYMBOL = '@@__IMMUTABLE_STACK__@@';
+
+  function isStack(maybeStack) {
+    return Boolean(maybeStack && maybeStack[IS_STACK_SYMBOL]);
+  }
+
+  var Stack = /*@__PURE__*/(function (IndexedCollection) {
+    function Stack(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptyStack()
+        : isStack(value)
+        ? value
+        : emptyStack().pushAll(value);
+    }
+
+    if ( IndexedCollection ) Stack.__proto__ = IndexedCollection;
+    Stack.prototype = Object.create( IndexedCollection && IndexedCollection.prototype );
+    Stack.prototype.constructor = Stack;
+
+    Stack.of = function of (/*...values*/) {
+      return this(arguments);
+    };
+
+    Stack.prototype.toString = function toString () {
+      return this.__toString('Stack [', ']');
+    };
+
+    // @pragma Access
+
+    Stack.prototype.get = function get (index, notSetValue) {
+      var head = this._head;
+      index = wrapIndex(this, index);
+      while (head && index--) {
+        head = head.next;
+      }
+      return head ? head.value : notSetValue;
+    };
+
+    Stack.prototype.peek = function peek () {
+      return this._head && this._head.value;
+    };
+
+    // @pragma Modification
+
+    Stack.prototype.push = function push (/*...values*/) {
+      var arguments$1 = arguments;
+
+      if (arguments.length === 0) {
+        return this;
+      }
+      var newSize = this.size + arguments.length;
+      var head = this._head;
+      for (var ii = arguments.length - 1; ii >= 0; ii--) {
+        head = {
+          value: arguments$1[ii],
+          next: head,
+        };
+      }
+      if (this.__ownerID) {
+        this.size = newSize;
+        this._head = head;
+        this.__hash = undefined;
+        this.__altered = true;
+        return this;
+      }
+      return makeStack(newSize, head);
+    };
+
+    Stack.prototype.pushAll = function pushAll (iter) {
+      iter = IndexedCollection(iter);
+      if (iter.size === 0) {
+        return this;
+      }
+      if (this.size === 0 && isStack(iter)) {
+        return iter;
+      }
+      assertNotInfinite(iter.size);
+      var newSize = this.size;
+      var head = this._head;
+      iter.__iterate(function (value) {
+        newSize++;
+        head = {
+          value: value,
+          next: head,
+        };
+      }, /* reverse */ true);
+      if (this.__ownerID) {
+        this.size = newSize;
+        this._head = head;
+        this.__hash = undefined;
+        this.__altered = true;
+        return this;
+      }
+      return makeStack(newSize, head);
+    };
+
+    Stack.prototype.pop = function pop () {
+      return this.slice(1);
+    };
+
+    Stack.prototype.clear = function clear () {
+      if (this.size === 0) {
+        return this;
+      }
+      if (this.__ownerID) {
+        this.size = 0;
+        this._head = undefined;
+        this.__hash = undefined;
+        this.__altered = true;
+        return this;
+      }
+      return emptyStack();
+    };
+
+    Stack.prototype.slice = function slice (begin, end) {
+      if (wholeSlice(begin, end, this.size)) {
+        return this;
+      }
+      var resolvedBegin = resolveBegin(begin, this.size);
+      var resolvedEnd = resolveEnd(end, this.size);
+      if (resolvedEnd !== this.size) {
+        // super.slice(begin, end);
+        return IndexedCollection.prototype.slice.call(this, begin, end);
+      }
+      var newSize = this.size - resolvedBegin;
+      var head = this._head;
+      while (resolvedBegin--) {
+        head = head.next;
+      }
+      if (this.__ownerID) {
+        this.size = newSize;
+        this._head = head;
+        this.__hash = undefined;
+        this.__altered = true;
+        return this;
+      }
+      return makeStack(newSize, head);
+    };
+
+    // @pragma Mutability
+
+    Stack.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+      if (ownerID === this.__ownerID) {
+        return this;
+      }
+      if (!ownerID) {
+        if (this.size === 0) {
+          return emptyStack();
+        }
+        this.__ownerID = ownerID;
+        this.__altered = false;
+        return this;
+      }
+      return makeStack(this.size, this._head, ownerID, this.__hash);
+    };
+
+    // @pragma Iteration
+
+    Stack.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      if (reverse) {
+        return new ArraySeq(this.toArray()).__iterate(
+          function (v, k) { return fn(v, k, this$1$1); },
+          reverse
+        );
+      }
+      var iterations = 0;
+      var node = this._head;
+      while (node) {
+        if (fn(node.value, iterations++, this) === false) {
+          break;
+        }
+        node = node.next;
+      }
+      return iterations;
+    };
+
+    Stack.prototype.__iterator = function __iterator (type, reverse) {
+      if (reverse) {
+        return new ArraySeq(this.toArray()).__iterator(type, reverse);
+      }
+      var iterations = 0;
+      var node = this._head;
+      return new Iterator(function () {
+        if (node) {
+          var value = node.value;
+          node = node.next;
+          return iteratorValue(type, iterations++, value);
+        }
+        return iteratorDone();
+      });
+    };
+
+    return Stack;
+  }(IndexedCollection));
+
+  Stack.isStack = isStack;
+
+  var StackPrototype = Stack.prototype;
+  StackPrototype[IS_STACK_SYMBOL] = true;
+  StackPrototype.shift = StackPrototype.pop;
+  StackPrototype.unshift = StackPrototype.push;
+  StackPrototype.unshiftAll = StackPrototype.pushAll;
+  StackPrototype.withMutations = withMutations;
+  StackPrototype.wasAltered = wasAltered;
+  StackPrototype.asImmutable = asImmutable;
+  StackPrototype['@@transducer/init'] = StackPrototype.asMutable = asMutable;
+  StackPrototype['@@transducer/step'] = function (result, arr) {
+    return result.unshift(arr);
+  };
+  StackPrototype['@@transducer/result'] = function (obj) {
+    return obj.asImmutable();
+  };
+
+  function makeStack(size, head, ownerID, hash) {
+    var map = Object.create(StackPrototype);
+    map.size = size;
+    map._head = head;
+    map.__ownerID = ownerID;
+    map.__hash = hash;
+    map.__altered = false;
+    return map;
+  }
+
+  var EMPTY_STACK;
+  function emptyStack() {
+    return EMPTY_STACK || (EMPTY_STACK = makeStack(0));
+  }
+
+  var IS_SET_SYMBOL = '@@__IMMUTABLE_SET__@@';
+
+  function isSet(maybeSet) {
+    return Boolean(maybeSet && maybeSet[IS_SET_SYMBOL]);
+  }
+
+  function isOrderedSet(maybeOrderedSet) {
+    return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);
+  }
+
+  function deepEqual(a, b) {
+    if (a === b) {
+      return true;
+    }
+
+    if (
+      !isCollection(b) ||
+      (a.size !== undefined && b.size !== undefined && a.size !== b.size) ||
+      (a.__hash !== undefined &&
+        b.__hash !== undefined &&
+        a.__hash !== b.__hash) ||
+      isKeyed(a) !== isKeyed(b) ||
+      isIndexed(a) !== isIndexed(b) ||
+      isOrdered(a) !== isOrdered(b)
+    ) {
+      return false;
+    }
+
+    if (a.size === 0 && b.size === 0) {
+      return true;
+    }
+
+    var notAssociative = !isAssociative(a);
+
+    if (isOrdered(a)) {
+      var entries = a.entries();
+      return (
+        b.every(function (v, k) {
+          var entry = entries.next().value;
+          return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));
+        }) && entries.next().done
+      );
+    }
+
+    var flipped = false;
+
+    if (a.size === undefined) {
+      if (b.size === undefined) {
+        if (typeof a.cacheResult === 'function') {
+          a.cacheResult();
+        }
+      } else {
+        flipped = true;
+        var _ = a;
+        a = b;
+        b = _;
+      }
+    }
+
+    var allEqual = true;
+    var bSize = b.__iterate(function (v, k) {
+      if (
+        notAssociative
+          ? !a.has(v)
+          : flipped
+          ? !is(v, a.get(k, NOT_SET))
+          : !is(a.get(k, NOT_SET), v)
+      ) {
+        allEqual = false;
+        return false;
+      }
+    });
+
+    return allEqual && a.size === bSize;
+  }
+
+  function mixin(ctor, methods) {
+    var keyCopier = function (key) {
+      ctor.prototype[key] = methods[key];
+    };
+    Object.keys(methods).forEach(keyCopier);
+    Object.getOwnPropertySymbols &&
+      Object.getOwnPropertySymbols(methods).forEach(keyCopier);
+    return ctor;
+  }
+
+  function toJS(value) {
+    if (!value || typeof value !== 'object') {
+      return value;
+    }
+    if (!isCollection(value)) {
+      if (!isDataStructure(value)) {
+        return value;
+      }
+      value = Seq(value);
+    }
+    if (isKeyed(value)) {
+      var result$1 = {};
+      value.__iterate(function (v, k) {
+        result$1[k] = toJS(v);
+      });
+      return result$1;
+    }
+    var result = [];
+    value.__iterate(function (v) {
+      result.push(toJS(v));
+    });
+    return result;
+  }
+
+  var Set = /*@__PURE__*/(function (SetCollection) {
+    function Set(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptySet()
+        : isSet(value) && !isOrdered(value)
+        ? value
+        : emptySet().withMutations(function (set) {
+            var iter = SetCollection(value);
+            assertNotInfinite(iter.size);
+            iter.forEach(function (v) { return set.add(v); });
+          });
+    }
+
+    if ( SetCollection ) Set.__proto__ = SetCollection;
+    Set.prototype = Object.create( SetCollection && SetCollection.prototype );
+    Set.prototype.constructor = Set;
+
+    Set.of = function of (/*...values*/) {
+      return this(arguments);
+    };
+
+    Set.fromKeys = function fromKeys (value) {
+      return this(KeyedCollection(value).keySeq());
+    };
+
+    Set.intersect = function intersect (sets) {
+      sets = Collection(sets).toArray();
+      return sets.length
+        ? SetPrototype.intersect.apply(Set(sets.pop()), sets)
+        : emptySet();
+    };
+
+    Set.union = function union (sets) {
+      sets = Collection(sets).toArray();
+      return sets.length
+        ? SetPrototype.union.apply(Set(sets.pop()), sets)
+        : emptySet();
+    };
+
+    Set.prototype.toString = function toString () {
+      return this.__toString('Set {', '}');
+    };
+
+    // @pragma Access
+
+    Set.prototype.has = function has (value) {
+      return this._map.has(value);
+    };
+
+    // @pragma Modification
+
+    Set.prototype.add = function add (value) {
+      return updateSet(this, this._map.set(value, value));
+    };
+
+    Set.prototype.remove = function remove (value) {
+      return updateSet(this, this._map.remove(value));
+    };
+
+    Set.prototype.clear = function clear () {
+      return updateSet(this, this._map.clear());
+    };
+
+    // @pragma Composition
+
+    Set.prototype.map = function map (mapper, context) {
+      var this$1$1 = this;
+
+      // keep track if the set is altered by the map function
+      var didChanges = false;
+
+      var newMap = updateSet(
+        this,
+        this._map.mapEntries(function (ref) {
+          var v = ref[1];
+
+          var mapped = mapper.call(context, v, v, this$1$1);
+
+          if (mapped !== v) {
+            didChanges = true;
+          }
+
+          return [mapped, mapped];
+        }, context)
+      );
+
+      return didChanges ? newMap : this;
+    };
+
+    Set.prototype.union = function union () {
+      var iters = [], len = arguments.length;
+      while ( len-- ) iters[ len ] = arguments[ len ];
+
+      iters = iters.filter(function (x) { return x.size !== 0; });
+      if (iters.length === 0) {
+        return this;
+      }
+      if (this.size === 0 && !this.__ownerID && iters.length === 1) {
+        return this.constructor(iters[0]);
+      }
+      return this.withMutations(function (set) {
+        for (var ii = 0; ii < iters.length; ii++) {
+          if (typeof iters[ii] === 'string') {
+            set.add(iters[ii]);
+          } else {
+            SetCollection(iters[ii]).forEach(function (value) { return set.add(value); });
+          }
+        }
+      });
+    };
+
+    Set.prototype.intersect = function intersect () {
+      var iters = [], len = arguments.length;
+      while ( len-- ) iters[ len ] = arguments[ len ];
+
+      if (iters.length === 0) {
+        return this;
+      }
+      iters = iters.map(function (iter) { return SetCollection(iter); });
+      var toRemove = [];
+      this.forEach(function (value) {
+        if (!iters.every(function (iter) { return iter.includes(value); })) {
+          toRemove.push(value);
+        }
+      });
+      return this.withMutations(function (set) {
+        toRemove.forEach(function (value) {
+          set.remove(value);
+        });
+      });
+    };
+
+    Set.prototype.subtract = function subtract () {
+      var iters = [], len = arguments.length;
+      while ( len-- ) iters[ len ] = arguments[ len ];
+
+      if (iters.length === 0) {
+        return this;
+      }
+      iters = iters.map(function (iter) { return SetCollection(iter); });
+      var toRemove = [];
+      this.forEach(function (value) {
+        if (iters.some(function (iter) { return iter.includes(value); })) {
+          toRemove.push(value);
+        }
+      });
+      return this.withMutations(function (set) {
+        toRemove.forEach(function (value) {
+          set.remove(value);
+        });
+      });
+    };
+
+    Set.prototype.sort = function sort (comparator) {
+      // Late binding
+      return OrderedSet(sortFactory(this, comparator));
+    };
+
+    Set.prototype.sortBy = function sortBy (mapper, comparator) {
+      // Late binding
+      return OrderedSet(sortFactory(this, comparator, mapper));
+    };
+
+    Set.prototype.wasAltered = function wasAltered () {
+      return this._map.wasAltered();
+    };
+
+    Set.prototype.__iterate = function __iterate (fn, reverse) {
+      var this$1$1 = this;
+
+      return this._map.__iterate(function (k) { return fn(k, k, this$1$1); }, reverse);
+    };
+
+    Set.prototype.__iterator = function __iterator (type, reverse) {
+      return this._map.__iterator(type, reverse);
+    };
+
+    Set.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+      if (ownerID === this.__ownerID) {
+        return this;
+      }
+      var newMap = this._map.__ensureOwner(ownerID);
+      if (!ownerID) {
+        if (this.size === 0) {
+          return this.__empty();
+        }
+        this.__ownerID = ownerID;
+        this._map = newMap;
+        return this;
+      }
+      return this.__make(newMap, ownerID);
+    };
+
+    return Set;
+  }(SetCollection));
+
+  Set.isSet = isSet;
+
+  var SetPrototype = Set.prototype;
+  SetPrototype[IS_SET_SYMBOL] = true;
+  SetPrototype[DELETE] = SetPrototype.remove;
+  SetPrototype.merge = SetPrototype.concat = SetPrototype.union;
+  SetPrototype.withMutations = withMutations;
+  SetPrototype.asImmutable = asImmutable;
+  SetPrototype['@@transducer/init'] = SetPrototype.asMutable = asMutable;
+  SetPrototype['@@transducer/step'] = function (result, arr) {
+    return result.add(arr);
+  };
+  SetPrototype['@@transducer/result'] = function (obj) {
+    return obj.asImmutable();
+  };
+
+  SetPrototype.__empty = emptySet;
+  SetPrototype.__make = makeSet;
+
+  function updateSet(set, newMap) {
+    if (set.__ownerID) {
+      set.size = newMap.size;
+      set._map = newMap;
+      return set;
+    }
+    return newMap === set._map
+      ? set
+      : newMap.size === 0
+      ? set.__empty()
+      : set.__make(newMap);
+  }
+
+  function makeSet(map, ownerID) {
+    var set = Object.create(SetPrototype);
+    set.size = map ? map.size : 0;
+    set._map = map;
+    set.__ownerID = ownerID;
+    return set;
+  }
+
+  var EMPTY_SET;
+  function emptySet() {
+    return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));
+  }
+
+  /**
+   * Returns a lazy seq of nums from start (inclusive) to end
+   * (exclusive), by step, where start defaults to 0, step to 1, and end to
+   * infinity. When start is equal to end, returns empty list.
+   */
+  var Range = /*@__PURE__*/(function (IndexedSeq) {
+    function Range(start, end, step) {
+      if (!(this instanceof Range)) {
+        // eslint-disable-next-line no-constructor-return
+        return new Range(start, end, step);
+      }
+      invariant(step !== 0, 'Cannot step a Range by 0');
+      start = start || 0;
+      if (end === undefined) {
+        end = Infinity;
+      }
+      step = step === undefined ? 1 : Math.abs(step);
+      if (end < start) {
+        step = -step;
+      }
+      this._start = start;
+      this._end = end;
+      this._step = step;
+      this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);
+      if (this.size === 0) {
+        if (EMPTY_RANGE) {
+          // eslint-disable-next-line no-constructor-return
+          return EMPTY_RANGE;
+        }
+        EMPTY_RANGE = this;
+      }
+    }
+
+    if ( IndexedSeq ) Range.__proto__ = IndexedSeq;
+    Range.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+    Range.prototype.constructor = Range;
+
+    Range.prototype.toString = function toString () {
+      if (this.size === 0) {
+        return 'Range []';
+      }
+      return (
+        'Range [ ' +
+        this._start +
+        '...' +
+        this._end +
+        (this._step !== 1 ? ' by ' + this._step : '') +
+        ' ]'
+      );
+    };
+
+    Range.prototype.get = function get (index, notSetValue) {
+      return this.has(index)
+        ? this._start + wrapIndex(this, index) * this._step
+        : notSetValue;
+    };
+
+    Range.prototype.includes = function includes (searchValue) {
+      var possibleIndex = (searchValue - this._start) / this._step;
+      return (
+        possibleIndex >= 0 &&
+        possibleIndex < this.size &&
+        possibleIndex === Math.floor(possibleIndex)
+      );
+    };
+
+    Range.prototype.slice = function slice (begin, end) {
+      if (wholeSlice(begin, end, this.size)) {
+        return this;
+      }
+      begin = resolveBegin(begin, this.size);
+      end = resolveEnd(end, this.size);
+      if (end <= begin) {
+        return new Range(0, 0);
+      }
+      return new Range(
+        this.get(begin, this._end),
+        this.get(end, this._end),
+        this._step
+      );
+    };
+
+    Range.prototype.indexOf = function indexOf (searchValue) {
+      var offsetValue = searchValue - this._start;
+      if (offsetValue % this._step === 0) {
+        var index = offsetValue / this._step;
+        if (index >= 0 && index < this.size) {
+          return index;
+        }
+      }
+      return -1;
+    };
+
+    Range.prototype.lastIndexOf = function lastIndexOf (searchValue) {
+      return this.indexOf(searchValue);
+    };
+
+    Range.prototype.__iterate = function __iterate (fn, reverse) {
+      var size = this.size;
+      var step = this._step;
+      var value = reverse ? this._start + (size - 1) * step : this._start;
+      var i = 0;
+      while (i !== size) {
+        if (fn(value, reverse ? size - ++i : i++, this) === false) {
+          break;
+        }
+        value += reverse ? -step : step;
+      }
+      return i;
+    };
+
+    Range.prototype.__iterator = function __iterator (type, reverse) {
+      var size = this.size;
+      var step = this._step;
+      var value = reverse ? this._start + (size - 1) * step : this._start;
+      var i = 0;
+      return new Iterator(function () {
+        if (i === size) {
+          return iteratorDone();
+        }
+        var v = value;
+        value += reverse ? -step : step;
+        return iteratorValue(type, reverse ? size - ++i : i++, v);
+      });
+    };
+
+    Range.prototype.equals = function equals (other) {
+      return other instanceof Range
+        ? this._start === other._start &&
+            this._end === other._end &&
+            this._step === other._step
+        : deepEqual(this, other);
+    };
+
+    return Range;
+  }(IndexedSeq));
+
+  var EMPTY_RANGE;
+
+  function getIn$1(collection, searchKeyPath, notSetValue) {
+    var keyPath = coerceKeyPath(searchKeyPath);
+    var i = 0;
+    while (i !== keyPath.length) {
+      collection = get(collection, keyPath[i++], NOT_SET);
+      if (collection === NOT_SET) {
+        return notSetValue;
+      }
+    }
+    return collection;
+  }
+
+  function getIn(searchKeyPath, notSetValue) {
+    return getIn$1(this, searchKeyPath, notSetValue);
+  }
+
+  function hasIn$1(collection, keyPath) {
+    return getIn$1(collection, keyPath, NOT_SET) !== NOT_SET;
+  }
+
+  function hasIn(searchKeyPath) {
+    return hasIn$1(this, searchKeyPath);
+  }
+
+  function toObject() {
+    assertNotInfinite(this.size);
+    var object = {};
+    this.__iterate(function (v, k) {
+      object[k] = v;
+    });
+    return object;
+  }
+
+  // Note: all of these methods are deprecated.
+  Collection.isIterable = isCollection;
+  Collection.isKeyed = isKeyed;
+  Collection.isIndexed = isIndexed;
+  Collection.isAssociative = isAssociative;
+  Collection.isOrdered = isOrdered;
+
+  Collection.Iterator = Iterator;
+
+  mixin(Collection, {
+    // ### Conversion to other types
+
+    toArray: function toArray() {
+      assertNotInfinite(this.size);
+      var array = new Array(this.size || 0);
+      var useTuples = isKeyed(this);
+      var i = 0;
+      this.__iterate(function (v, k) {
+        // Keyed collections produce an array of tuples.
+        array[i++] = useTuples ? [k, v] : v;
+      });
+      return array;
+    },
+
+    toIndexedSeq: function toIndexedSeq() {
+      return new ToIndexedSequence(this);
+    },
+
+    toJS: function toJS$1() {
+      return toJS(this);
+    },
+
+    toKeyedSeq: function toKeyedSeq() {
+      return new ToKeyedSequence(this, true);
+    },
+
+    toMap: function toMap() {
+      // Use Late Binding here to solve the circular dependency.
+      return Map(this.toKeyedSeq());
+    },
+
+    toObject: toObject,
+
+    toOrderedMap: function toOrderedMap() {
+      // Use Late Binding here to solve the circular dependency.
+      return OrderedMap(this.toKeyedSeq());
+    },
+
+    toOrderedSet: function toOrderedSet() {
+      // Use Late Binding here to solve the circular dependency.
+      return OrderedSet(isKeyed(this) ? this.valueSeq() : this);
+    },
+
+    toSet: function toSet() {
+      // Use Late Binding here to solve the circular dependency.
+      return Set(isKeyed(this) ? this.valueSeq() : this);
+    },
+
+    toSetSeq: function toSetSeq() {
+      return new ToSetSequence(this);
+    },
+
+    toSeq: function toSeq() {
+      return isIndexed(this)
+        ? this.toIndexedSeq()
+        : isKeyed(this)
+        ? this.toKeyedSeq()
+        : this.toSetSeq();
+    },
+
+    toStack: function toStack() {
+      // Use Late Binding here to solve the circular dependency.
+      return Stack(isKeyed(this) ? this.valueSeq() : this);
+    },
+
+    toList: function toList() {
+      // Use Late Binding here to solve the circular dependency.
+      return List(isKeyed(this) ? this.valueSeq() : this);
+    },
+
+    // ### Common JavaScript methods and properties
+
+    toString: function toString() {
+      return '[Collection]';
+    },
+
+    __toString: function __toString(head, tail) {
+      if (this.size === 0) {
+        return head + tail;
+      }
+      return (
+        head +
+        ' ' +
+        this.toSeq().map(this.__toStringMapper).join(', ') +
+        ' ' +
+        tail
+      );
+    },
+
+    // ### ES6 Collection methods (ES6 Array and Map)
+
+    concat: function concat() {
+      var values = [], len = arguments.length;
+      while ( len-- ) values[ len ] = arguments[ len ];
+
+      return reify(this, concatFactory(this, values));
+    },
+
+    includes: function includes(searchValue) {
+      return this.some(function (value) { return is(value, searchValue); });
+    },
+
+    entries: function entries() {
+      return this.__iterator(ITERATE_ENTRIES);
+    },
+
+    every: function every(predicate, context) {
+      assertNotInfinite(this.size);
+      var returnValue = true;
+      this.__iterate(function (v, k, c) {
+        if (!predicate.call(context, v, k, c)) {
+          returnValue = false;
+          return false;
+        }
+      });
+      return returnValue;
+    },
+
+    filter: function filter(predicate, context) {
+      return reify(this, filterFactory(this, predicate, context, true));
+    },
+
+    partition: function partition(predicate, context) {
+      return partitionFactory(this, predicate, context);
+    },
+
+    find: function find(predicate, context, notSetValue) {
+      var entry = this.findEntry(predicate, context);
+      return entry ? entry[1] : notSetValue;
+    },
+
+    forEach: function forEach(sideEffect, context) {
+      assertNotInfinite(this.size);
+      return this.__iterate(context ? sideEffect.bind(context) : sideEffect);
+    },
+
+    join: function join(separator) {
+      assertNotInfinite(this.size);
+      separator = separator !== undefined ? '' + separator : ',';
+      var joined = '';
+      var isFirst = true;
+      this.__iterate(function (v) {
+        isFirst ? (isFirst = false) : (joined += separator);
+        joined += v !== null && v !== undefined ? v.toString() : '';
+      });
+      return joined;
+    },
+
+    keys: function keys() {
+      return this.__iterator(ITERATE_KEYS);
+    },
+
+    map: function map(mapper, context) {
+      return reify(this, mapFactory(this, mapper, context));
+    },
+
+    reduce: function reduce$1(reducer, initialReduction, context) {
+      return reduce(
+        this,
+        reducer,
+        initialReduction,
+        context,
+        arguments.length < 2,
+        false
+      );
+    },
+
+    reduceRight: function reduceRight(reducer, initialReduction, context) {
+      return reduce(
+        this,
+        reducer,
+        initialReduction,
+        context,
+        arguments.length < 2,
+        true
+      );
+    },
+
+    reverse: function reverse() {
+      return reify(this, reverseFactory(this, true));
+    },
+
+    slice: function slice(begin, end) {
+      return reify(this, sliceFactory(this, begin, end, true));
+    },
+
+    some: function some(predicate, context) {
+      assertNotInfinite(this.size);
+      var returnValue = false;
+      this.__iterate(function (v, k, c) {
+        if (predicate.call(context, v, k, c)) {
+          returnValue = true;
+          return false;
+        }
+      });
+      return returnValue;
+    },
+
+    sort: function sort(comparator) {
+      return reify(this, sortFactory(this, comparator));
+    },
+
+    values: function values() {
+      return this.__iterator(ITERATE_VALUES);
+    },
+
+    // ### More sequential methods
+
+    butLast: function butLast() {
+      return this.slice(0, -1);
+    },
+
+    isEmpty: function isEmpty() {
+      return this.size !== undefined ? this.size === 0 : !this.some(function () { return true; });
+    },
+
+    count: function count(predicate, context) {
+      return ensureSize(
+        predicate ? this.toSeq().filter(predicate, context) : this
+      );
+    },
+
+    countBy: function countBy(grouper, context) {
+      return countByFactory(this, grouper, context);
+    },
+
+    equals: function equals(other) {
+      return deepEqual(this, other);
+    },
+
+    entrySeq: function entrySeq() {
+      var collection = this;
+      if (collection._cache) {
+        // We cache as an entries array, so we can just return the cache!
+        return new ArraySeq(collection._cache);
+      }
+      var entriesSequence = collection.toSeq().map(entryMapper).toIndexedSeq();
+      entriesSequence.fromEntrySeq = function () { return collection.toSeq(); };
+      return entriesSequence;
+    },
+
+    filterNot: function filterNot(predicate, context) {
+      return this.filter(not(predicate), context);
+    },
+
+    findEntry: function findEntry(predicate, context, notSetValue) {
+      var found = notSetValue;
+      this.__iterate(function (v, k, c) {
+        if (predicate.call(context, v, k, c)) {
+          found = [k, v];
+          return false;
+        }
+      });
+      return found;
+    },
+
+    findKey: function findKey(predicate, context) {
+      var entry = this.findEntry(predicate, context);
+      return entry && entry[0];
+    },
+
+    findLast: function findLast(predicate, context, notSetValue) {
+      return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);
+    },
+
+    findLastEntry: function findLastEntry(predicate, context, notSetValue) {
+      return this.toKeyedSeq()
+        .reverse()
+        .findEntry(predicate, context, notSetValue);
+    },
+
+    findLastKey: function findLastKey(predicate, context) {
+      return this.toKeyedSeq().reverse().findKey(predicate, context);
+    },
+
+    first: function first(notSetValue) {
+      return this.find(returnTrue, null, notSetValue);
+    },
+
+    flatMap: function flatMap(mapper, context) {
+      return reify(this, flatMapFactory(this, mapper, context));
+    },
+
+    flatten: function flatten(depth) {
+      return reify(this, flattenFactory(this, depth, true));
+    },
+
+    fromEntrySeq: function fromEntrySeq() {
+      return new FromEntriesSequence(this);
+    },
+
+    get: function get(searchKey, notSetValue) {
+      return this.find(function (_, key) { return is(key, searchKey); }, undefined, notSetValue);
+    },
+
+    getIn: getIn,
+
+    groupBy: function groupBy(grouper, context) {
+      return groupByFactory(this, grouper, context);
+    },
+
+    has: function has(searchKey) {
+      return this.get(searchKey, NOT_SET) !== NOT_SET;
+    },
+
+    hasIn: hasIn,
+
+    isSubset: function isSubset(iter) {
+      iter = typeof iter.includes === 'function' ? iter : Collection(iter);
+      return this.every(function (value) { return iter.includes(value); });
+    },
+
+    isSuperset: function isSuperset(iter) {
+      iter = typeof iter.isSubset === 'function' ? iter : Collection(iter);
+      return iter.isSubset(this);
+    },
+
+    keyOf: function keyOf(searchValue) {
+      return this.findKey(function (value) { return is(value, searchValue); });
+    },
+
+    keySeq: function keySeq() {
+      return this.toSeq().map(keyMapper).toIndexedSeq();
+    },
+
+    last: function last(notSetValue) {
+      return this.toSeq().reverse().first(notSetValue);
+    },
+
+    lastKeyOf: function lastKeyOf(searchValue) {
+      return this.toKeyedSeq().reverse().keyOf(searchValue);
+    },
+
+    max: function max(comparator) {
+      return maxFactory(this, comparator);
+    },
+
+    maxBy: function maxBy(mapper, comparator) {
+      return maxFactory(this, comparator, mapper);
+    },
+
+    min: function min(comparator) {
+      return maxFactory(
+        this,
+        comparator ? neg(comparator) : defaultNegComparator
+      );
+    },
+
+    minBy: function minBy(mapper, comparator) {
+      return maxFactory(
+        this,
+        comparator ? neg(comparator) : defaultNegComparator,
+        mapper
+      );
+    },
+
+    rest: function rest() {
+      return this.slice(1);
+    },
+
+    skip: function skip(amount) {
+      return amount === 0 ? this : this.slice(Math.max(0, amount));
+    },
+
+    skipLast: function skipLast(amount) {
+      return amount === 0 ? this : this.slice(0, -Math.max(0, amount));
+    },
+
+    skipWhile: function skipWhile(predicate, context) {
+      return reify(this, skipWhileFactory(this, predicate, context, true));
+    },
+
+    skipUntil: function skipUntil(predicate, context) {
+      return this.skipWhile(not(predicate), context);
+    },
+
+    sortBy: function sortBy(mapper, comparator) {
+      return reify(this, sortFactory(this, comparator, mapper));
+    },
+
+    take: function take(amount) {
+      return this.slice(0, Math.max(0, amount));
+    },
+
+    takeLast: function takeLast(amount) {
+      return this.slice(-Math.max(0, amount));
+    },
+
+    takeWhile: function takeWhile(predicate, context) {
+      return reify(this, takeWhileFactory(this, predicate, context));
+    },
+
+    takeUntil: function takeUntil(predicate, context) {
+      return this.takeWhile(not(predicate), context);
+    },
+
+    update: function update(fn) {
+      return fn(this);
+    },
+
+    valueSeq: function valueSeq() {
+      return this.toIndexedSeq();
+    },
+
+    // ### Hashable Object
+
+    hashCode: function hashCode() {
+      return this.__hash || (this.__hash = hashCollection(this));
+    },
+
+    // ### Internal
+
+    // abstract __iterate(fn, reverse)
+
+    // abstract __iterator(type, reverse)
+  });
+
+  var CollectionPrototype = Collection.prototype;
+  CollectionPrototype[IS_COLLECTION_SYMBOL] = true;
+  CollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.values;
+  CollectionPrototype.toJSON = CollectionPrototype.toArray;
+  CollectionPrototype.__toStringMapper = quoteString;
+  CollectionPrototype.inspect = CollectionPrototype.toSource = function () {
+    return this.toString();
+  };
+  CollectionPrototype.chain = CollectionPrototype.flatMap;
+  CollectionPrototype.contains = CollectionPrototype.includes;
+
+  mixin(KeyedCollection, {
+    // ### More sequential methods
+
+    flip: function flip() {
+      return reify(this, flipFactory(this));
+    },
+
+    mapEntries: function mapEntries(mapper, context) {
+      var this$1$1 = this;
+
+      var iterations = 0;
+      return reify(
+        this,
+        this.toSeq()
+          .map(function (v, k) { return mapper.call(context, [k, v], iterations++, this$1$1); })
+          .fromEntrySeq()
+      );
+    },
+
+    mapKeys: function mapKeys(mapper, context) {
+      var this$1$1 = this;
+
+      return reify(
+        this,
+        this.toSeq()
+          .flip()
+          .map(function (k, v) { return mapper.call(context, k, v, this$1$1); })
+          .flip()
+      );
+    },
+  });
+
+  var KeyedCollectionPrototype = KeyedCollection.prototype;
+  KeyedCollectionPrototype[IS_KEYED_SYMBOL] = true;
+  KeyedCollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.entries;
+  KeyedCollectionPrototype.toJSON = toObject;
+  KeyedCollectionPrototype.__toStringMapper = function (v, k) { return quoteString(k) + ': ' + quoteString(v); };
+
+  mixin(IndexedCollection, {
+    // ### Conversion to other types
+
+    toKeyedSeq: function toKeyedSeq() {
+      return new ToKeyedSequence(this, false);
+    },
+
+    // ### ES6 Collection methods (ES6 Array and Map)
+
+    filter: function filter(predicate, context) {
+      return reify(this, filterFactory(this, predicate, context, false));
+    },
+
+    findIndex: function findIndex(predicate, context) {
+      var entry = this.findEntry(predicate, context);
+      return entry ? entry[0] : -1;
+    },
+
+    indexOf: function indexOf(searchValue) {
+      var key = this.keyOf(searchValue);
+      return key === undefined ? -1 : key;
+    },
+
+    lastIndexOf: function lastIndexOf(searchValue) {
+      var key = this.lastKeyOf(searchValue);
+      return key === undefined ? -1 : key;
+    },
+
+    reverse: function reverse() {
+      return reify(this, reverseFactory(this, false));
+    },
+
+    slice: function slice(begin, end) {
+      return reify(this, sliceFactory(this, begin, end, false));
+    },
+
+    splice: function splice(index, removeNum /*, ...values*/) {
+      var numArgs = arguments.length;
+      removeNum = Math.max(removeNum || 0, 0);
+      if (numArgs === 0 || (numArgs === 2 && !removeNum)) {
+        return this;
+      }
+      // If index is negative, it should resolve relative to the size of the
+      // collection. However size may be expensive to compute if not cached, so
+      // only call count() if the number is in fact negative.
+      index = resolveBegin(index, index < 0 ? this.count() : this.size);
+      var spliced = this.slice(0, index);
+      return reify(
+        this,
+        numArgs === 1
+          ? spliced
+          : spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))
+      );
+    },
+
+    // ### More collection methods
+
+    findLastIndex: function findLastIndex(predicate, context) {
+      var entry = this.findLastEntry(predicate, context);
+      return entry ? entry[0] : -1;
+    },
+
+    first: function first(notSetValue) {
+      return this.get(0, notSetValue);
+    },
+
+    flatten: function flatten(depth) {
+      return reify(this, flattenFactory(this, depth, false));
+    },
+
+    get: function get(index, notSetValue) {
+      index = wrapIndex(this, index);
+      return index < 0 ||
+        this.size === Infinity ||
+        (this.size !== undefined && index > this.size)
+        ? notSetValue
+        : this.find(function (_, key) { return key === index; }, undefined, notSetValue);
+    },
+
+    has: function has(index) {
+      index = wrapIndex(this, index);
+      return (
+        index >= 0 &&
+        (this.size !== undefined
+          ? this.size === Infinity || index < this.size
+          : this.indexOf(index) !== -1)
+      );
+    },
+
+    interpose: function interpose(separator) {
+      return reify(this, interposeFactory(this, separator));
+    },
+
+    interleave: function interleave(/*...collections*/) {
+      var collections = [this].concat(arrCopy(arguments));
+      var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, collections);
+      var interleaved = zipped.flatten(true);
+      if (zipped.size) {
+        interleaved.size = zipped.size * collections.length;
+      }
+      return reify(this, interleaved);
+    },
+
+    keySeq: function keySeq() {
+      return Range(0, this.size);
+    },
+
+    last: function last(notSetValue) {
+      return this.get(-1, notSetValue);
+    },
+
+    skipWhile: function skipWhile(predicate, context) {
+      return reify(this, skipWhileFactory(this, predicate, context, false));
+    },
+
+    zip: function zip(/*, ...collections */) {
+      var collections = [this].concat(arrCopy(arguments));
+      return reify(this, zipWithFactory(this, defaultZipper, collections));
+    },
+
+    zipAll: function zipAll(/*, ...collections */) {
+      var collections = [this].concat(arrCopy(arguments));
+      return reify(this, zipWithFactory(this, defaultZipper, collections, true));
+    },
+
+    zipWith: function zipWith(zipper /*, ...collections */) {
+      var collections = arrCopy(arguments);
+      collections[0] = this;
+      return reify(this, zipWithFactory(this, zipper, collections));
+    },
+  });
+
+  var IndexedCollectionPrototype = IndexedCollection.prototype;
+  IndexedCollectionPrototype[IS_INDEXED_SYMBOL] = true;
+  IndexedCollectionPrototype[IS_ORDERED_SYMBOL] = true;
+
+  mixin(SetCollection, {
+    // ### ES6 Collection methods (ES6 Array and Map)
+
+    get: function get(value, notSetValue) {
+      return this.has(value) ? value : notSetValue;
+    },
+
+    includes: function includes(value) {
+      return this.has(value);
+    },
+
+    // ### More sequential methods
+
+    keySeq: function keySeq() {
+      return this.valueSeq();
+    },
+  });
+
+  var SetCollectionPrototype = SetCollection.prototype;
+  SetCollectionPrototype.has = CollectionPrototype.includes;
+  SetCollectionPrototype.contains = SetCollectionPrototype.includes;
+  SetCollectionPrototype.keys = SetCollectionPrototype.values;
+
+  // Mixin subclasses
+
+  mixin(KeyedSeq, KeyedCollectionPrototype);
+  mixin(IndexedSeq, IndexedCollectionPrototype);
+  mixin(SetSeq, SetCollectionPrototype);
+
+  // #pragma Helper functions
+
+  function reduce(collection, reducer, reduction, context, useFirst, reverse) {
+    assertNotInfinite(collection.size);
+    collection.__iterate(function (v, k, c) {
+      if (useFirst) {
+        useFirst = false;
+        reduction = v;
+      } else {
+        reduction = reducer.call(context, reduction, v, k, c);
+      }
+    }, reverse);
+    return reduction;
+  }
+
+  function keyMapper(v, k) {
+    return k;
+  }
+
+  function entryMapper(v, k) {
+    return [k, v];
+  }
+
+  function not(predicate) {
+    return function () {
+      return !predicate.apply(this, arguments);
+    };
+  }
+
+  function neg(predicate) {
+    return function () {
+      return -predicate.apply(this, arguments);
+    };
+  }
+
+  function defaultZipper() {
+    return arrCopy(arguments);
+  }
+
+  function defaultNegComparator(a, b) {
+    return a < b ? 1 : a > b ? -1 : 0;
+  }
+
+  function hashCollection(collection) {
+    if (collection.size === Infinity) {
+      return 0;
+    }
+    var ordered = isOrdered(collection);
+    var keyed = isKeyed(collection);
+    var h = ordered ? 1 : 0;
+    var size = collection.__iterate(
+      keyed
+        ? ordered
+          ? function (v, k) {
+              h = (31 * h + hashMerge(hash(v), hash(k))) | 0;
+            }
+          : function (v, k) {
+              h = (h + hashMerge(hash(v), hash(k))) | 0;
+            }
+        : ordered
+        ? function (v) {
+            h = (31 * h + hash(v)) | 0;
+          }
+        : function (v) {
+            h = (h + hash(v)) | 0;
+          }
+    );
+    return murmurHashOfSize(size, h);
+  }
+
+  function murmurHashOfSize(size, h) {
+    h = imul(h, 0xcc9e2d51);
+    h = imul((h << 15) | (h >>> -15), 0x1b873593);
+    h = imul((h << 13) | (h >>> -13), 5);
+    h = ((h + 0xe6546b64) | 0) ^ size;
+    h = imul(h ^ (h >>> 16), 0x85ebca6b);
+    h = imul(h ^ (h >>> 13), 0xc2b2ae35);
+    h = smi(h ^ (h >>> 16));
+    return h;
+  }
+
+  function hashMerge(a, b) {
+    return (a ^ (b + 0x9e3779b9 + (a << 6) + (a >> 2))) | 0; // int
+  }
+
+  var OrderedSet = /*@__PURE__*/(function (Set) {
+    function OrderedSet(value) {
+      // eslint-disable-next-line no-constructor-return
+      return value === undefined || value === null
+        ? emptyOrderedSet()
+        : isOrderedSet(value)
+        ? value
+        : emptyOrderedSet().withMutations(function (set) {
+            var iter = SetCollection(value);
+            assertNotInfinite(iter.size);
+            iter.forEach(function (v) { return set.add(v); });
+          });
+    }
+
+    if ( Set ) OrderedSet.__proto__ = Set;
+    OrderedSet.prototype = Object.create( Set && Set.prototype );
+    OrderedSet.prototype.constructor = OrderedSet;
+
+    OrderedSet.of = function of (/*...values*/) {
+      return this(arguments);
+    };
+
+    OrderedSet.fromKeys = function fromKeys (value) {
+      return this(KeyedCollection(value).keySeq());
+    };
+
+    OrderedSet.prototype.toString = function toString () {
+      return this.__toString('OrderedSet {', '}');
+    };
+
+    return OrderedSet;
+  }(Set));
+
+  OrderedSet.isOrderedSet = isOrderedSet;
+
+  var OrderedSetPrototype = OrderedSet.prototype;
+  OrderedSetPrototype[IS_ORDERED_SYMBOL] = true;
+  OrderedSetPrototype.zip = IndexedCollectionPrototype.zip;
+  OrderedSetPrototype.zipWith = IndexedCollectionPrototype.zipWith;
+  OrderedSetPrototype.zipAll = IndexedCollectionPrototype.zipAll;
+
+  OrderedSetPrototype.__empty = emptyOrderedSet;
+  OrderedSetPrototype.__make = makeOrderedSet;
+
+  function makeOrderedSet(map, ownerID) {
+    var set = Object.create(OrderedSetPrototype);
+    set.size = map ? map.size : 0;
+    set._map = map;
+    set.__ownerID = ownerID;
+    return set;
+  }
+
+  var EMPTY_ORDERED_SET;
+  function emptyOrderedSet() {
+    return (
+      EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()))
+    );
+  }
+
+  var PairSorting = {
+    LeftThenRight: -1,
+    RightThenLeft: +1,
+  };
+
+  function throwOnInvalidDefaultValues(defaultValues) {
+    if (isRecord(defaultValues)) {
+      throw new Error(
+        'Can not call `Record` with an immutable Record as default values. Use a plain javascript object instead.'
+      );
+    }
+
+    if (isImmutable(defaultValues)) {
+      throw new Error(
+        'Can not call `Record` with an immutable Collection as default values. Use a plain javascript object instead.'
+      );
+    }
+
+    if (defaultValues === null || typeof defaultValues !== 'object') {
+      throw new Error(
+        'Can not call `Record` with a non-object as default values. Use a plain javascript object instead.'
+      );
+    }
+  }
+
+  var Record = function Record(defaultValues, name) {
+    var hasInitialized;
+
+    throwOnInvalidDefaultValues(defaultValues);
+
+    var RecordType = function Record(values) {
+      var this$1$1 = this;
+
+      if (values instanceof RecordType) {
+        return values;
+      }
+      if (!(this instanceof RecordType)) {
+        return new RecordType(values);
+      }
+      if (!hasInitialized) {
+        hasInitialized = true;
+        var keys = Object.keys(defaultValues);
+        var indices = (RecordTypePrototype._indices = {});
+        // Deprecated: left to attempt not to break any external code which
+        // relies on a ._name property existing on record instances.
+        // Use Record.getDescriptiveName() instead
+        RecordTypePrototype._name = name;
+        RecordTypePrototype._keys = keys;
+        RecordTypePrototype._defaultValues = defaultValues;
+        for (var i = 0; i < keys.length; i++) {
+          var propName = keys[i];
+          indices[propName] = i;
+          if (RecordTypePrototype[propName]) {
+            /* eslint-disable no-console */
+            typeof console === 'object' &&
+              console.warn &&
+              console.warn(
+                'Cannot define ' +
+                  recordName(this) +
+                  ' with property "' +
+                  propName +
+                  '" since that property name is part of the Record API.'
+              );
+            /* eslint-enable no-console */
+          } else {
+            setProp(RecordTypePrototype, propName);
+          }
+        }
+      }
+      this.__ownerID = undefined;
+      this._values = List().withMutations(function (l) {
+        l.setSize(this$1$1._keys.length);
+        KeyedCollection(values).forEach(function (v, k) {
+          l.set(this$1$1._indices[k], v === this$1$1._defaultValues[k] ? undefined : v);
+        });
+      });
+      return this;
+    };
+
+    var RecordTypePrototype = (RecordType.prototype =
+      Object.create(RecordPrototype));
+    RecordTypePrototype.constructor = RecordType;
+
+    if (name) {
+      RecordType.displayName = name;
+    }
+
+    // eslint-disable-next-line no-constructor-return
+    return RecordType;
+  };
+
+  Record.prototype.toString = function toString () {
+    var str = recordName(this) + ' { ';
+    var keys = this._keys;
+    var k;
+    for (var i = 0, l = keys.length; i !== l; i++) {
+      k = keys[i];
+      str += (i ? ', ' : '') + k + ': ' + quoteString(this.get(k));
+    }
+    return str + ' }';
+  };
+
+  Record.prototype.equals = function equals (other) {
+    return (
+      this === other ||
+      (isRecord(other) && recordSeq(this).equals(recordSeq(other)))
+    );
+  };
+
+  Record.prototype.hashCode = function hashCode () {
+    return recordSeq(this).hashCode();
+  };
+
+  // @pragma Access
+
+  Record.prototype.has = function has (k) {
+    return this._indices.hasOwnProperty(k);
+  };
+
+  Record.prototype.get = function get (k, notSetValue) {
+    if (!this.has(k)) {
+      return notSetValue;
+    }
+    var index = this._indices[k];
+    var value = this._values.get(index);
+    return value === undefined ? this._defaultValues[k] : value;
+  };
+
+  // @pragma Modification
+
+  Record.prototype.set = function set (k, v) {
+    if (this.has(k)) {
+      var newValues = this._values.set(
+        this._indices[k],
+        v === this._defaultValues[k] ? undefined : v
+      );
+      if (newValues !== this._values && !this.__ownerID) {
+        return makeRecord(this, newValues);
+      }
+    }
+    return this;
+  };
+
+  Record.prototype.remove = function remove (k) {
+    return this.set(k);
+  };
+
+  Record.prototype.clear = function clear () {
+    var newValues = this._values.clear().setSize(this._keys.length);
+
+    return this.__ownerID ? this : makeRecord(this, newValues);
+  };
+
+  Record.prototype.wasAltered = function wasAltered () {
+    return this._values.wasAltered();
+  };
+
+  Record.prototype.toSeq = function toSeq () {
+    return recordSeq(this);
+  };
+
+  Record.prototype.toJS = function toJS$1 () {
+    return toJS(this);
+  };
+
+  Record.prototype.entries = function entries () {
+    return this.__iterator(ITERATE_ENTRIES);
+  };
+
+  Record.prototype.__iterator = function __iterator (type, reverse) {
+    return recordSeq(this).__iterator(type, reverse);
+  };
+
+  Record.prototype.__iterate = function __iterate (fn, reverse) {
+    return recordSeq(this).__iterate(fn, reverse);
+  };
+
+  Record.prototype.__ensureOwner = function __ensureOwner (ownerID) {
+    if (ownerID === this.__ownerID) {
+      return this;
+    }
+    var newValues = this._values.__ensureOwner(ownerID);
+    if (!ownerID) {
+      this.__ownerID = ownerID;
+      this._values = newValues;
+      return this;
+    }
+    return makeRecord(this, newValues, ownerID);
+  };
+
+  Record.isRecord = isRecord;
+  Record.getDescriptiveName = recordName;
+  var RecordPrototype = Record.prototype;
+  RecordPrototype[IS_RECORD_SYMBOL] = true;
+  RecordPrototype[DELETE] = RecordPrototype.remove;
+  RecordPrototype.deleteIn = RecordPrototype.removeIn = deleteIn;
+  RecordPrototype.getIn = getIn;
+  RecordPrototype.hasIn = CollectionPrototype.hasIn;
+  RecordPrototype.merge = merge$1;
+  RecordPrototype.mergeWith = mergeWith$1;
+  RecordPrototype.mergeIn = mergeIn;
+  RecordPrototype.mergeDeep = mergeDeep;
+  RecordPrototype.mergeDeepWith = mergeDeepWith;
+  RecordPrototype.mergeDeepIn = mergeDeepIn;
+  RecordPrototype.setIn = setIn;
+  RecordPrototype.update = update;
+  RecordPrototype.updateIn = updateIn;
+  RecordPrototype.withMutations = withMutations;
+  RecordPrototype.asMutable = asMutable;
+  RecordPrototype.asImmutable = asImmutable;
+  RecordPrototype[ITERATOR_SYMBOL] = RecordPrototype.entries;
+  RecordPrototype.toJSON = RecordPrototype.toObject =
+    CollectionPrototype.toObject;
+  RecordPrototype.inspect = RecordPrototype.toSource = function () {
+    return this.toString();
+  };
+
+  function makeRecord(likeRecord, values, ownerID) {
+    var record = Object.create(Object.getPrototypeOf(likeRecord));
+    record._values = values;
+    record.__ownerID = ownerID;
+    return record;
+  }
+
+  function recordName(record) {
+    return record.constructor.displayName || record.constructor.name || 'Record';
+  }
+
+  function recordSeq(record) {
+    return keyedSeqFromValue(record._keys.map(function (k) { return [k, record.get(k)]; }));
+  }
+
+  function setProp(prototype, name) {
+    try {
+      Object.defineProperty(prototype, name, {
+        get: function () {
+          return this.get(name);
+        },
+        set: function (value) {
+          invariant(this.__ownerID, 'Cannot set on an immutable record.');
+          this.set(name, value);
+        },
+      });
+    } catch (error) {
+      // Object.defineProperty failed. Probably IE8.
+    }
+  }
+
+  /**
+   * Returns a lazy Seq of `value` repeated `times` times. When `times` is
+   * undefined, returns an infinite sequence of `value`.
+   */
+  var Repeat = /*@__PURE__*/(function (IndexedSeq) {
+    function Repeat(value, times) {
+      if (!(this instanceof Repeat)) {
+        // eslint-disable-next-line no-constructor-return
+        return new Repeat(value, times);
+      }
+      this._value = value;
+      this.size = times === undefined ? Infinity : Math.max(0, times);
+      if (this.size === 0) {
+        if (EMPTY_REPEAT) {
+          // eslint-disable-next-line no-constructor-return
+          return EMPTY_REPEAT;
+        }
+        EMPTY_REPEAT = this;
+      }
+    }
+
+    if ( IndexedSeq ) Repeat.__proto__ = IndexedSeq;
+    Repeat.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );
+    Repeat.prototype.constructor = Repeat;
+
+    Repeat.prototype.toString = function toString () {
+      if (this.size === 0) {
+        return 'Repeat []';
+      }
+      return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';
+    };
+
+    Repeat.prototype.get = function get (index, notSetValue) {
+      return this.has(index) ? this._value : notSetValue;
+    };
+
+    Repeat.prototype.includes = function includes (searchValue) {
+      return is(this._value, searchValue);
+    };
+
+    Repeat.prototype.slice = function slice (begin, end) {
+      var size = this.size;
+      return wholeSlice(begin, end, size)
+        ? this
+        : new Repeat(
+            this._value,
+            resolveEnd(end, size) - resolveBegin(begin, size)
+          );
+    };
+
+    Repeat.prototype.reverse = function reverse () {
+      return this;
+    };
+
+    Repeat.prototype.indexOf = function indexOf (searchValue) {
+      if (is(this._value, searchValue)) {
+        return 0;
+      }
+      return -1;
+    };
+
+    Repeat.prototype.lastIndexOf = function lastIndexOf (searchValue) {
+      if (is(this._value, searchValue)) {
+        return this.size;
+      }
+      return -1;
+    };
+
+    Repeat.prototype.__iterate = function __iterate (fn, reverse) {
+      var size = this.size;
+      var i = 0;
+      while (i !== size) {
+        if (fn(this._value, reverse ? size - ++i : i++, this) === false) {
+          break;
+        }
+      }
+      return i;
+    };
+
+    Repeat.prototype.__iterator = function __iterator (type, reverse) {
+      var this$1$1 = this;
+
+      var size = this.size;
+      var i = 0;
+      return new Iterator(function () { return i === size
+          ? iteratorDone()
+          : iteratorValue(type, reverse ? size - ++i : i++, this$1$1._value); }
+      );
+    };
+
+    Repeat.prototype.equals = function equals (other) {
+      return other instanceof Repeat
+        ? is(this._value, other._value)
+        : deepEqual(this, other);
+    };
+
+    return Repeat;
+  }(IndexedSeq));
+
+  var EMPTY_REPEAT;
+
+  function fromJS(value, converter) {
+    return fromJSWith(
+      [],
+      converter || defaultConverter,
+      value,
+      '',
+      converter && converter.length > 2 ? [] : undefined,
+      { '': value }
+    );
+  }
+
+  function fromJSWith(stack, converter, value, key, keyPath, parentValue) {
+    if (
+      typeof value !== 'string' &&
+      !isImmutable(value) &&
+      (isArrayLike(value) || hasIterator(value) || isPlainObject(value))
+    ) {
+      if (~stack.indexOf(value)) {
+        throw new TypeError('Cannot convert circular structure to Immutable');
+      }
+      stack.push(value);
+      keyPath && key !== '' && keyPath.push(key);
+      var converted = converter.call(
+        parentValue,
+        key,
+        Seq(value).map(function (v, k) { return fromJSWith(stack, converter, v, k, keyPath, value); }
+        ),
+        keyPath && keyPath.slice()
+      );
+      stack.pop();
+      keyPath && keyPath.pop();
+      return converted;
+    }
+    return value;
+  }
+
+  function defaultConverter(k, v) {
+    // Effectively the opposite of "Collection.toSeq()"
+    return isIndexed(v) ? v.toList() : isKeyed(v) ? v.toMap() : v.toSet();
+  }
+
+  var version = "4.3.6";
+
+  var Immutable = {
+    version: version,
+
+    Collection: Collection,
+    // Note: Iterable is deprecated
+    Iterable: Collection,
+
+    Seq: Seq,
+    Map: Map,
+    OrderedMap: OrderedMap,
+    List: List,
+    Stack: Stack,
+    Set: Set,
+    OrderedSet: OrderedSet,
+    PairSorting: PairSorting,
+
+    Record: Record,
+    Range: Range,
+    Repeat: Repeat,
+
+    is: is,
+    fromJS: fromJS,
+    hash: hash,
+
+    isImmutable: isImmutable,
+    isCollection: isCollection,
+    isKeyed: isKeyed,
+    isIndexed: isIndexed,
+    isAssociative: isAssociative,
+    isOrdered: isOrdered,
+    isValueObject: isValueObject,
+    isPlainObject: isPlainObject,
+    isSeq: isSeq,
+    isList: isList,
+    isMap: isMap,
+    isOrderedMap: isOrderedMap,
+    isStack: isStack,
+    isSet: isSet,
+    isOrderedSet: isOrderedSet,
+    isRecord: isRecord,
+
+    get: get,
+    getIn: getIn$1,
+    has: has,
+    hasIn: hasIn$1,
+    merge: merge,
+    mergeDeep: mergeDeep$1,
+    mergeWith: mergeWith,
+    mergeDeepWith: mergeDeepWith$1,
+    remove: remove,
+    removeIn: removeIn,
+    set: set,
+    setIn: setIn$1,
+    update: update$1,
+    updateIn: updateIn$1,
+  };
+
+  // Note: Iterable is deprecated
+  var Iterable = Collection;
+
+  exports.Collection = Collection;
+  exports.Iterable = Iterable;
+  exports.List = List;
+  exports.Map = Map;
+  exports.OrderedMap = OrderedMap;
+  exports.OrderedSet = OrderedSet;
+  exports.PairSorting = PairSorting;
+  exports.Range = Range;
+  exports.Record = Record;
+  exports.Repeat = Repeat;
+  exports.Seq = Seq;
+  exports.Set = Set;
+  exports.Stack = Stack;
+  exports.default = Immutable;
+  exports.fromJS = fromJS;
+  exports.get = get;
+  exports.getIn = getIn$1;
+  exports.has = has;
+  exports.hasIn = hasIn$1;
+  exports.hash = hash;
+  exports.is = is;
+  exports.isAssociative = isAssociative;
+  exports.isCollection = isCollection;
+  exports.isImmutable = isImmutable;
+  exports.isIndexed = isIndexed;
+  exports.isKeyed = isKeyed;
+  exports.isList = isList;
+  exports.isMap = isMap;
+  exports.isOrdered = isOrdered;
+  exports.isOrderedMap = isOrderedMap;
+  exports.isOrderedSet = isOrderedSet;
+  exports.isPlainObject = isPlainObject;
+  exports.isRecord = isRecord;
+  exports.isSeq = isSeq;
+  exports.isSet = isSet;
+  exports.isStack = isStack;
+  exports.isValueObject = isValueObject;
+  exports.merge = merge;
+  exports.mergeDeep = mergeDeep$1;
+  exports.mergeDeepWith = mergeDeepWith$1;
+  exports.mergeWith = mergeWith;
+  exports.remove = remove;
+  exports.removeIn = removeIn;
+  exports.set = set;
+  exports.setIn = setIn$1;
+  exports.update = update$1;
+  exports.updateIn = updateIn$1;
+  exports.version = version;
+
+  Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.js.flow b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.js.flow
new file mode 100644
index 00000000..67a496f2
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.js.flow
@@ -0,0 +1,2412 @@
+/**
+ * This file provides type definitions for use with the Flow type checker.
+ *
+ * An important caveat when using these definitions is that the types for
+ * `Collection.Keyed`, `Collection.Indexed`, `Seq.Keyed`, and so on are stubs.
+ * When referring to those types, you can get the proper definitions by
+ * importing the types `KeyedCollection`, `IndexedCollection`, `KeyedSeq`, etc.
+ * For example,
+ *
+ *     import { Seq } from 'immutable'
+ *     import type { IndexedCollection, IndexedSeq } from 'immutable'
+ *
+ *     const someSeq: IndexedSeq<number> = Seq.Indexed.of(1, 2, 3)
+ *
+ *     function takesASeq<T, TS: IndexedCollection<T>>(iter: TS): TS {
+ *       return iter.butLast()
+ *     }
+ *
+ *     takesASeq(someSeq)
+ *
+ * @flow strict
+ */
+
+// Helper type that represents plain objects allowed as arguments to
+// some constructors and functions.
+type PlainObjInput<K, V> = { +[key: K]: V, __proto__: null };
+
+type K<T> = $Keys<T>;
+
+// Helper types to extract the "keys" and "values" use by the *In() methods.
+type $KeyOf<C> = $Call<
+  (<K>(?_Collection<K, mixed>) => K) &
+    (<T>(?$ReadOnlyArray<T>) => number) &
+    (<T>(?RecordInstance<T> | T) => $Keys<T>) &
+    (<T: Object>(T) => $Keys<T>),
+  C
+>;
+
+type $ValOf<C, K = $KeyOf<C>> = $Call<
+  (<V>(?_Collection<any, V>) => V) &
+    (<T>(?$ReadOnlyArray<T>) => T) &
+    (<T, K: $Keys<T>>(?RecordInstance<T> | T, K) => $ElementType<T, K>) &
+    (<T: Object>(T) => $Values<T>),
+  C,
+  K
+>;
+
+type $IterableOf<C> = $Call<
+  (<V: Array<any> | IndexedCollection<any> | SetCollection<any>>(
+    V
+  ) => Iterable<$ValOf<V>>) &
+    (<
+      V:
+        | KeyedCollection<any, any>
+        | RecordInstance<any>
+        | PlainObjInput<any, any>
+    >(
+      V
+    ) => Iterable<[$KeyOf<V>, $ValOf<V>]>),
+  C
+>;
+
+const PairSorting: $ReadOnly<{ LeftThenRight: number, RightThenLeft: number }> =
+  {
+    LeftThenRight: -1,
+    RightThenLeft: +1,
+  };
+
+type Comparator<T> = (left: T, right: T) => number;
+
+declare class _Collection<K, +V> implements ValueObject {
+  equals(other: mixed): boolean;
+  hashCode(): number;
+  get(key: K, ..._: []): V | void;
+  get<NSV>(key: K, notSetValue: NSV): V | NSV;
+  has(key: K): boolean;
+  includes(value: V): boolean;
+  contains(value: V): boolean;
+  first<NSV>(notSetValue?: NSV): V | NSV;
+  last<NSV>(notSetValue?: NSV): V | NSV;
+
+  hasIn(keyPath: Iterable<mixed>): boolean;
+
+  getIn(keyPath: [], notSetValue?: mixed): this;
+  getIn<NSV>(keyPath: [K], notSetValue: NSV): V | NSV;
+  getIn<NSV, K2: $KeyOf<V>>(
+    keyPath: [K, K2],
+    notSetValue: NSV
+  ): $ValOf<V, K2> | NSV;
+  getIn<NSV, K2: $KeyOf<V>, K3: $KeyOf<$ValOf<V, K2>>>(
+    keyPath: [K, K2, K3],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<V, K2>, K3> | NSV;
+  getIn<
+    NSV,
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>
+  >(
+    keyPath: [K, K2, K3, K4],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<$ValOf<V, K2>, K3>, K4> | NSV;
+  getIn<
+    NSV,
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>, K5> | NSV;
+
+  update<U>(updater: (value: this) => U): U;
+
+  toJS(): Array<any> | { [key: string]: mixed };
+  toJSON(): Array<V> | { [key: string]: V };
+  toArray(): Array<V> | Array<[K, V]>;
+  toObject(): { [key: string]: V };
+  toMap(): Map<K, V>;
+  toOrderedMap(): OrderedMap<K, V>;
+  toSet(): Set<V>;
+  toOrderedSet(): OrderedSet<V>;
+  toList(): List<V>;
+  toStack(): Stack<V>;
+  toSeq(): Seq<K, V>;
+  toKeyedSeq(): KeyedSeq<K, V>;
+  toIndexedSeq(): IndexedSeq<V>;
+  toSetSeq(): SetSeq<V>;
+
+  keys(): Iterator<K>;
+  values(): Iterator<V>;
+  entries(): Iterator<[K, V]>;
+
+  keySeq(): IndexedSeq<K>;
+  valueSeq(): IndexedSeq<V>;
+  entrySeq(): IndexedSeq<[K, V]>;
+
+  reverse(): this;
+  sort(comparator?: Comparator<V>): this;
+
+  sortBy<C>(
+    comparatorValueMapper: (value: V, key: K, iter: this) => C,
+    comparator?: Comparator<C>
+  ): this;
+
+  groupBy<G>(
+    grouper: (value: V, key: K, iter: this) => G,
+    context?: mixed
+  ): KeyedSeq<G, this>;
+
+  forEach(
+    sideEffect: (value: V, key: K, iter: this) => any,
+    context?: mixed
+  ): number;
+
+  slice(begin?: number, end?: number): this;
+  rest(): this;
+  butLast(): this;
+  skip(amount: number): this;
+  skipLast(amount: number): this;
+  skipWhile(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): this;
+  skipUntil(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): this;
+  take(amount: number): this;
+  takeLast(amount: number): this;
+  takeWhile(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): this;
+  takeUntil(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): this;
+
+  filterNot(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): this;
+
+  reduce<R>(
+    reducer: (reduction: R, value: V, key: K, iter: this) => R,
+    initialReduction: R,
+    context?: mixed
+  ): R;
+  reduce<R>(reducer: (reduction: V | R, value: V, key: K, iter: this) => R): R;
+
+  reduceRight<R>(
+    reducer: (reduction: R, value: V, key: K, iter: this) => R,
+    initialReduction: R,
+    context?: mixed
+  ): R;
+  reduceRight<R>(
+    reducer: (reduction: V | R, value: V, key: K, iter: this) => R
+  ): R;
+
+  every(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): boolean;
+  some(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): boolean;
+  join(separator?: string): string;
+  isEmpty(): boolean;
+  count(
+    predicate?: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): number;
+  countBy<G>(
+    grouper: (value: V, key: K, iter: this) => G,
+    context?: mixed
+  ): Map<G, number>;
+
+  find<NSV>(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed,
+    notSetValue?: NSV
+  ): V | NSV;
+  findLast<NSV>(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed,
+    notSetValue?: NSV
+  ): V | NSV;
+
+  findEntry(predicate: (value: V, key: K, iter: this) => mixed): [K, V] | void;
+  findLastEntry(
+    predicate: (value: V, key: K, iter: this) => mixed
+  ): [K, V] | void;
+
+  findKey(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): K | void;
+  findLastKey(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): K | void;
+
+  keyOf(searchValue: V): K | void;
+  lastKeyOf(searchValue: V): K | void;
+
+  max(comparator?: Comparator<V>): V;
+  maxBy<C>(
+    comparatorValueMapper: (value: V, key: K, iter: this) => C,
+    comparator?: Comparator<C>
+  ): V;
+  min(comparator?: Comparator<V>): V;
+  minBy<C>(
+    comparatorValueMapper: (value: V, key: K, iter: this) => C,
+    comparator?: Comparator<C>
+  ): V;
+
+  isSubset(iter: Iterable<V>): boolean;
+  isSuperset(iter: Iterable<V>): boolean;
+}
+
+declare function isImmutable(
+  maybeImmutable: mixed
+): boolean %checks(maybeImmutable instanceof Collection);
+declare function isCollection(
+  maybeCollection: mixed
+): boolean %checks(maybeCollection instanceof Collection);
+declare function isKeyed(
+  maybeKeyed: mixed
+): boolean %checks(maybeKeyed instanceof KeyedCollection);
+declare function isIndexed(
+  maybeIndexed: mixed
+): boolean %checks(maybeIndexed instanceof IndexedCollection);
+declare function isAssociative(
+  maybeAssociative: mixed
+): boolean %checks(maybeAssociative instanceof KeyedCollection ||
+  maybeAssociative instanceof IndexedCollection);
+declare function isOrdered(
+  maybeOrdered: mixed
+): boolean %checks(maybeOrdered instanceof IndexedCollection ||
+  maybeOrdered instanceof OrderedMap ||
+  maybeOrdered instanceof OrderedSet);
+declare function isValueObject(maybeValue: mixed): boolean;
+
+declare function isSeq(maybeSeq: any): boolean %checks(maybeSeq instanceof Seq);
+declare function isList(maybeList: any): boolean %checks(maybeList instanceof
+  List);
+declare function isMap(maybeMap: any): boolean %checks(maybeMap instanceof Map);
+declare function isOrderedMap(
+  maybeOrderedMap: any
+): boolean %checks(maybeOrderedMap instanceof OrderedMap);
+declare function isStack(maybeStack: any): boolean %checks(maybeStack instanceof
+  Stack);
+declare function isSet(maybeSet: any): boolean %checks(maybeSet instanceof Set);
+declare function isOrderedSet(
+  maybeOrderedSet: any
+): boolean %checks(maybeOrderedSet instanceof OrderedSet);
+declare function isRecord(
+  maybeRecord: any
+): boolean %checks(maybeRecord instanceof Record);
+
+declare interface ValueObject {
+  equals(other: mixed): boolean;
+  hashCode(): number;
+}
+
+declare class Collection<K, +V> extends _Collection<K, V> {
+  static Keyed: typeof KeyedCollection;
+  static Indexed: typeof IndexedCollection;
+  static Set: typeof SetCollection;
+
+  static isCollection: typeof isCollection;
+  static isKeyed: typeof isKeyed;
+  static isIndexed: typeof isIndexed;
+  static isAssociative: typeof isAssociative;
+  static isOrdered: typeof isOrdered;
+}
+
+declare class KeyedCollection<K, +V> extends Collection<K, V> {
+  static <K, V>(
+    values?: Iterable<[K, V]> | PlainObjInput<K, V>
+  ): KeyedCollection<K, V>;
+
+  toJS(): { [key: string]: mixed };
+  toJSON(): { [key: string]: V };
+  toArray(): Array<[K, V]>;
+  @@iterator(): Iterator<[K, V]>;
+  toSeq(): KeyedSeq<K, V>;
+  flip(): KeyedCollection<V, K>;
+
+  concat<KC, VC>(
+    ...iters: Array<Iterable<[KC, VC]> | PlainObjInput<KC, VC>>
+  ): KeyedCollection<K | KC, V | VC>;
+
+  filter(predicate: typeof Boolean): KeyedCollection<K, $NonMaybeType<V>>;
+  filter(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): KeyedCollection<K, V>;
+
+  partition(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: V, key: K, iter: this) => M,
+    context?: mixed
+  ): KeyedCollection<K, M>;
+
+  mapKeys<M>(
+    mapper: (key: K, value: V, iter: this) => M,
+    context?: mixed
+  ): KeyedCollection<M, V>;
+
+  mapEntries<KM, VM>(
+    mapper: (entry: [K, V], index: number, iter: this) => [KM, VM],
+    context?: mixed
+  ): KeyedCollection<KM, VM>;
+
+  flatMap<KM, VM>(
+    mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+    context?: mixed
+  ): KeyedCollection<KM, VM>;
+
+  flatten(depth?: number): KeyedCollection<any, any>;
+  flatten(shallow?: boolean): KeyedCollection<any, any>;
+}
+
+Collection.Keyed = KeyedCollection;
+
+declare class IndexedCollection<+T> extends Collection<number, T> {
+  static <T>(iter?: Iterable<T>): IndexedCollection<T>;
+
+  toJS(): Array<mixed>;
+  toJSON(): Array<T>;
+  toArray(): Array<T>;
+  @@iterator(): Iterator<T>;
+  toSeq(): IndexedSeq<T>;
+  fromEntrySeq<K, V>(): KeyedSeq<K, V>;
+  interpose(separator: T): this;
+  interleave(...collections: Iterable<T>[]): this;
+  splice(index: number, removeNum: number, ...values: T[]): this;
+
+  zip<A>(a: Iterable<A>, ..._: []): IndexedCollection<[T, A]>;
+  zip<A, B>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): IndexedCollection<[T, A, B]>;
+  zip<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): IndexedCollection<[T, A, B, C]>;
+  zip<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): IndexedCollection<[T, A, B, C, D]>;
+  zip<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): IndexedCollection<[T, A, B, C, D, E]>;
+
+  zipAll<A>(a: Iterable<A>, ..._: []): IndexedCollection<[T | void, A | void]>;
+  zipAll<A, B>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): IndexedCollection<[T | void, A | void, B | void]>;
+  zipAll<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): IndexedCollection<[T | void, A | void, B | void, C | void]>;
+  zipAll<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): IndexedCollection<[T | void, A | void, B | void, C | void, D | void]>;
+  zipAll<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): IndexedCollection<
+    [T | void, A | void, B | void, C | void, D | void, E | void]
+  >;
+
+  zipWith<A, R>(
+    zipper: (value: T, a: A) => R,
+    a: Iterable<A>,
+    ..._: []
+  ): IndexedCollection<R>;
+  zipWith<A, B, R>(
+    zipper: (value: T, a: A, b: B) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): IndexedCollection<R>;
+  zipWith<A, B, C, R>(
+    zipper: (value: T, a: A, b: B, c: C) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): IndexedCollection<R>;
+  zipWith<A, B, C, D, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): IndexedCollection<R>;
+  zipWith<A, B, C, D, E, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D, e: E) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): IndexedCollection<R>;
+
+  indexOf(searchValue: T): number;
+  lastIndexOf(searchValue: T): number;
+  findIndex(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): number;
+  findLastIndex(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): number;
+
+  concat<C>(...iters: Array<Iterable<C> | C>): IndexedCollection<T | C>;
+
+  filter(predicate: typeof Boolean): IndexedCollection<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): IndexedCollection<T>;
+
+  partition(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, index: number, iter: this) => M,
+    context?: mixed
+  ): IndexedCollection<M>;
+
+  flatMap<M>(
+    mapper: (value: T, index: number, iter: this) => Iterable<M>,
+    context?: mixed
+  ): IndexedCollection<M>;
+
+  flatten(depth?: number): IndexedCollection<any>;
+  flatten(shallow?: boolean): IndexedCollection<any>;
+}
+
+declare class SetCollection<+T> extends Collection<T, T> {
+  static <T>(iter?: Iterable<T>): SetCollection<T>;
+
+  toJS(): Array<mixed>;
+  toJSON(): Array<T>;
+  toArray(): Array<T>;
+  @@iterator(): Iterator<T>;
+  toSeq(): SetSeq<T>;
+
+  concat<U>(...collections: Iterable<U>[]): SetCollection<T | U>;
+
+  // `filter`, `map` and `flatMap` cannot be defined further up the hierarchy,
+  // because the implementation for `KeyedCollection` allows the value type to
+  // change without constraining the key type. That does not work for
+  // `SetCollection` - the value and key types *must* match.
+  filter(predicate: typeof Boolean): SetCollection<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): SetCollection<T>;
+
+  partition(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, value: T, iter: this) => M,
+    context?: mixed
+  ): SetCollection<M>;
+
+  flatMap<M>(
+    mapper: (value: T, value: T, iter: this) => Iterable<M>,
+    context?: mixed
+  ): SetCollection<M>;
+
+  flatten(depth?: number): SetCollection<any>;
+  flatten(shallow?: boolean): SetCollection<any>;
+}
+
+declare function isSeq(maybeSeq: mixed): boolean %checks(maybeSeq instanceof
+  Seq);
+declare class Seq<K, +V> extends _Collection<K, V> {
+  static Keyed: typeof KeyedSeq;
+  static Indexed: typeof IndexedSeq;
+  static Set: typeof SetSeq;
+
+  static <K, V>(values: KeyedSeq<K, V>): KeyedSeq<K, V>;
+  static <T>(values: SetSeq<T>): SetSeq<K, V>;
+  static <T>(values: Iterable<T>): IndexedSeq<T>;
+  static <K, V>(values?: PlainObjInput<K, V>): KeyedSeq<K, V>;
+
+  static isSeq: typeof isSeq;
+
+  size: number | void;
+  cacheResult(): this;
+  toSeq(): this;
+}
+
+declare class KeyedSeq<K, +V> extends Seq<K, V> mixins KeyedCollection<K, V> {
+  static <K, V>(
+    values?: Iterable<[K, V]> | PlainObjInput<K, V>
+  ): KeyedSeq<K, V>;
+
+  // Override specialized return types
+  flip(): KeyedSeq<V, K>;
+
+  concat<KC, VC>(
+    ...iters: Array<Iterable<[KC, VC]> | PlainObjInput<KC, VC>>
+  ): KeyedSeq<K | KC, V | VC>;
+
+  filter(predicate: typeof Boolean): KeyedSeq<K, $NonMaybeType<V>>;
+  filter(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): KeyedSeq<K, V>;
+
+  partition(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: V, key: K, iter: this) => M,
+    context?: mixed
+  ): KeyedSeq<K, M>;
+
+  mapKeys<M>(
+    mapper: (key: K, value: V, iter: this) => M,
+    context?: mixed
+  ): KeyedSeq<M, V>;
+
+  mapEntries<KM, VM>(
+    mapper: (entry: [K, V], index: number, iter: this) => [KM, VM],
+    context?: mixed
+  ): KeyedSeq<KM, VM>;
+
+  flatMap<KM, VM>(
+    mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+    context?: mixed
+  ): KeyedSeq<KM, VM>;
+
+  flatten(depth?: number): KeyedSeq<any, any>;
+  flatten(shallow?: boolean): KeyedSeq<any, any>;
+}
+
+declare class IndexedSeq<+T>
+  extends Seq<number, T>
+  mixins IndexedCollection<T>
+{
+  static <T>(values?: Iterable<T>): IndexedSeq<T>;
+
+  static of<T>(...values: T[]): IndexedSeq<T>;
+
+  // Override specialized return types
+
+  concat<C>(...iters: Array<Iterable<C> | C>): IndexedSeq<T | C>;
+
+  filter(predicate: typeof Boolean): IndexedSeq<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): IndexedSeq<T>;
+
+  partition(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, index: number, iter: this) => M,
+    context?: mixed
+  ): IndexedSeq<M>;
+
+  flatMap<M>(
+    mapper: (value: T, index: number, iter: this) => Iterable<M>,
+    context?: mixed
+  ): IndexedSeq<M>;
+
+  flatten(depth?: number): IndexedSeq<any>;
+  flatten(shallow?: boolean): IndexedSeq<any>;
+
+  zip<A>(a: Iterable<A>, ..._: []): IndexedSeq<[T, A]>;
+  zip<A, B>(a: Iterable<A>, b: Iterable<B>, ..._: []): IndexedSeq<[T, A, B]>;
+  zip<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): IndexedSeq<[T, A, B, C]>;
+  zip<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): IndexedSeq<[T, A, B, C, D]>;
+  zip<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): IndexedSeq<[T, A, B, C, D, E]>;
+
+  zipAll<A>(a: Iterable<A>, ..._: []): IndexedSeq<[T | void, A | void]>;
+  zipAll<A, B>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): IndexedSeq<[T | void, A | void, B | void]>;
+  zipAll<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): IndexedSeq<[T | void, A | void, B | void, C | void]>;
+  zipAll<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): IndexedSeq<[T | void, A | void, B | void, C | void, D | void]>;
+  zipAll<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): IndexedSeq<[T | void, A | void, B | void, C | void, D | void, E | void]>;
+
+  zipWith<A, R>(
+    zipper: (value: T, a: A) => R,
+    a: Iterable<A>,
+    ..._: []
+  ): IndexedSeq<R>;
+  zipWith<A, B, R>(
+    zipper: (value: T, a: A, b: B) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): IndexedSeq<R>;
+  zipWith<A, B, C, R>(
+    zipper: (value: T, a: A, b: B, c: C) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): IndexedSeq<R>;
+  zipWith<A, B, C, D, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): IndexedSeq<R>;
+  zipWith<A, B, C, D, E, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D, e: E) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): IndexedSeq<R>;
+}
+
+declare class SetSeq<+T> extends Seq<T, T> mixins SetCollection<T> {
+  static <T>(values?: Iterable<T>): SetSeq<T>;
+
+  static of<T>(...values: T[]): SetSeq<T>;
+
+  // Override specialized return types
+
+  concat<U>(...collections: Iterable<U>[]): SetSeq<T | U>;
+
+  filter(predicate: typeof Boolean): SetSeq<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): SetSeq<T>;
+
+  partition(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, value: T, iter: this) => M,
+    context?: mixed
+  ): SetSeq<M>;
+
+  flatMap<M>(
+    mapper: (value: T, value: T, iter: this) => Iterable<M>,
+    context?: mixed
+  ): SetSeq<M>;
+
+  flatten(depth?: number): SetSeq<any>;
+  flatten(shallow?: boolean): SetSeq<any>;
+}
+
+declare class UpdatableInCollection<K, +V> {
+  setIn<S>(keyPath: [], value: S): S;
+  setIn(keyPath: [K], value: V): this;
+  setIn<K2: $KeyOf<V>, S: $ValOf<V, K2>>(keyPath: [K, K2], value: S): this;
+  setIn<K2: $KeyOf<V>, K3: $KeyOf<$ValOf<V, K2>>, S: $ValOf<$ValOf<V, K2>, K3>>(
+    keyPath: [K, K2, K3],
+    value: S
+  ): this;
+  setIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    S: $ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>
+  >(
+    keyPath: [K, K2, K3, K4],
+    value: S
+  ): this;
+  setIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>, K5>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    value: S
+  ): this;
+
+  deleteIn(keyPath: []): void;
+  deleteIn(keyPath: [K]): this;
+  deleteIn<K2: $KeyOf<V>>(keyPath: [K, K2]): this;
+  deleteIn<K2: $KeyOf<V>, K3: $KeyOf<$ValOf<V, K2>>>(
+    keyPath: [K, K2, K3]
+  ): this;
+  deleteIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>
+  >(
+    keyPath: [K, K2, K3, K4]
+  ): this;
+  deleteIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>>
+  >(
+    keyPath: [K, K2, K3, K4, K5]
+  ): this;
+
+  removeIn(keyPath: []): void;
+  removeIn(keyPath: [K]): this;
+  removeIn<K2: $KeyOf<V>>(keyPath: [K, K2]): this;
+  removeIn<K2: $KeyOf<V>, K3: $KeyOf<$ValOf<V, K2>>>(
+    keyPath: [K, K2, K3]
+  ): this;
+  removeIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>
+  >(
+    keyPath: [K, K2, K3, K4]
+  ): this;
+  removeIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>>
+  >(
+    keyPath: [K, K2, K3, K4, K5]
+  ): this;
+
+  updateIn<U>(keyPath: [], notSetValue: mixed, updater: (value: this) => U): U;
+  updateIn<U>(keyPath: [], updater: (value: this) => U): U;
+  updateIn<NSV>(keyPath: [K], notSetValue: NSV, updater: (value: V) => V): this;
+  updateIn(keyPath: [K], updater: (value: V) => V): this;
+  updateIn<NSV, K2: $KeyOf<V>, S: $ValOf<V, K2>>(
+    keyPath: [K, K2],
+    notSetValue: NSV,
+    updater: (value: $ValOf<V, K2> | NSV) => S
+  ): this;
+  updateIn<K2: $KeyOf<V>, S: $ValOf<V, K2>>(
+    keyPath: [K, K2],
+    updater: (value: $ValOf<V, K2>) => S
+  ): this;
+  updateIn<
+    NSV,
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    S: $ValOf<$ValOf<V, K2>, K3>
+  >(
+    keyPath: [K, K2, K3],
+    notSetValue: NSV,
+    updater: (value: $ValOf<$ValOf<V, K2>, K3> | NSV) => S
+  ): this;
+  updateIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    S: $ValOf<$ValOf<V, K2>, K3>
+  >(
+    keyPath: [K, K2, K3],
+    updater: (value: $ValOf<$ValOf<V, K2>, K3>) => S
+  ): this;
+  updateIn<
+    NSV,
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    S: $ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>
+  >(
+    keyPath: [K, K2, K3, K4],
+    notSetValue: NSV,
+    updater: (value: $ValOf<$ValOf<$ValOf<V, K2>, K3>, K4> | NSV) => S
+  ): this;
+  updateIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    S: $ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>
+  >(
+    keyPath: [K, K2, K3, K4],
+    updater: (value: $ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>) => S
+  ): this;
+  updateIn<
+    NSV,
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>, K5>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    notSetValue: NSV,
+    updater: (
+      value: $ValOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>, K5> | NSV
+    ) => S
+  ): this;
+  updateIn<
+    K2: $KeyOf<V>,
+    K3: $KeyOf<$ValOf<V, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<V, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>, K5>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    updater: (value: $ValOf<$ValOf<$ValOf<$ValOf<V, K2>, K3>, K4>, K5>) => S
+  ): this;
+}
+
+declare function isList(maybeList: mixed): boolean %checks(maybeList instanceof
+  List);
+declare class List<+T>
+  extends IndexedCollection<T>
+  mixins UpdatableInCollection<number, T>
+{
+  static (collection?: Iterable<T>): List<T>;
+
+  static of<T>(...values: T[]): List<T>;
+
+  static isList: typeof isList;
+
+  size: number;
+
+  set<U>(index: number, value: U): List<T | U>;
+  delete(index: number): this;
+  remove(index: number): this;
+  insert<U>(index: number, value: U): List<T | U>;
+  clear(): this;
+  push<U>(...values: U[]): List<T | U>;
+  pop(): this;
+  unshift<U>(...values: U[]): List<T | U>;
+  shift(): this;
+
+  update<U>(updater: (value: this) => U): U;
+  update<U>(index: number, updater: (value: T) => U): List<T | U>;
+  update<U>(
+    index: number,
+    notSetValue: U,
+    updater: (value: T) => U
+  ): List<T | U>;
+
+  merge<U>(...collections: Iterable<U>[]): List<T | U>;
+
+  setSize(size: number): this;
+
+  mergeIn(keyPath: Iterable<mixed>, ...collections: Iterable<mixed>[]): this;
+  mergeDeepIn(
+    keyPath: Iterable<mixed>,
+    ...collections: Iterable<mixed>[]
+  ): this;
+
+  withMutations(mutator: (mutable: this) => mixed): this;
+  asMutable(): this;
+  wasAltered(): boolean;
+  asImmutable(): this;
+
+  // Override specialized return types
+
+  concat<C>(...iters: Array<Iterable<C> | C>): List<T | C>;
+
+  filter(predicate: typeof Boolean): List<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): List<T>;
+
+  partition(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, index: number, iter: this) => M,
+    context?: mixed
+  ): List<M>;
+
+  flatMap<M>(
+    mapper: (value: T, index: number, iter: this) => Iterable<M>,
+    context?: mixed
+  ): List<M>;
+
+  flatten(depth?: number): List<any>;
+  flatten(shallow?: boolean): List<any>;
+
+  zip<A>(a: Iterable<A>, ..._: []): List<[T, A]>;
+  zip<A, B>(a: Iterable<A>, b: Iterable<B>, ..._: []): List<[T, A, B]>;
+  zip<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): List<[T, A, B, C]>;
+  zip<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): List<[T, A, B, C, D]>;
+  zip<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): List<[T, A, B, C, D, E]>;
+
+  zipAll<A>(a: Iterable<A>, ..._: []): List<[T | void, A | void]>;
+  zipAll<A, B>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): List<[T | void, A | void, B | void]>;
+  zipAll<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): List<[T | void, A | void, B | void, C | void]>;
+  zipAll<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): List<[T | void, A | void, B | void, C | void, D | void]>;
+  zipAll<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): List<[T | void, A | void, B | void, C | void, D | void, E | void]>;
+
+  zipWith<A, R>(
+    zipper: (value: T, a: A) => R,
+    a: Iterable<A>,
+    ..._: []
+  ): List<R>;
+  zipWith<A, B, R>(
+    zipper: (value: T, a: A, b: B) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): List<R>;
+  zipWith<A, B, C, R>(
+    zipper: (value: T, a: A, b: B, c: C) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): List<R>;
+  zipWith<A, B, C, D, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): List<R>;
+  zipWith<A, B, C, D, E, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D, e: E) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): List<R>;
+}
+
+declare function isMap(maybeMap: mixed): boolean %checks(maybeMap instanceof
+  Map);
+declare class Map<K, +V>
+  extends KeyedCollection<K, V>
+  mixins UpdatableInCollection<K, V>
+{
+  static <K, V>(values?: Iterable<[K, V]> | PlainObjInput<K, V>): Map<K, V>;
+
+  static isMap: typeof isMap;
+
+  size: number;
+
+  set<K_, V_>(key: K_, value: V_): Map<K | K_, V | V_>;
+  delete(key: K): this;
+  remove(key: K): this;
+  clear(): this;
+
+  deleteAll(keys: Iterable<K>): Map<K, V>;
+  removeAll(keys: Iterable<K>): Map<K, V>;
+
+  update<U>(updater: (value: this) => U): U;
+  update<V_>(key: K, updater: (value: V) => V_): Map<K, V | V_>;
+  update<V_>(
+    key: K,
+    notSetValue: V_,
+    updater: (value: V) => V_
+  ): Map<K, V | V_>;
+
+  merge<K_, V_>(
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): Map<K | K_, V | V_>;
+  concat<K_, V_>(
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): Map<K | K_, V | V_>;
+
+  mergeWith<K_, W, X>(
+    merger: (oldVal: V, newVal: W, key: K) => X,
+    ...collections: (Iterable<[K_, W]> | PlainObjInput<K_, W>)[]
+  ): Map<K | K_, V | W | X>;
+
+  mergeDeep<K_, V_>(
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): Map<K | K_, V | V_>;
+
+  mergeDeepWith<K_, V_>(
+    merger: (oldVal: any, newVal: any, key: any) => mixed,
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): Map<K | K_, V | V_>;
+
+  mergeIn(
+    keyPath: Iterable<mixed>,
+    ...collections: (Iterable<mixed> | PlainObjInput<mixed, mixed>)[]
+  ): this;
+  mergeDeepIn(
+    keyPath: Iterable<mixed>,
+    ...collections: (Iterable<mixed> | PlainObjInput<mixed, mixed>)[]
+  ): this;
+
+  withMutations(mutator: (mutable: this) => mixed): this;
+  asMutable(): this;
+  wasAltered(): boolean;
+  asImmutable(): this;
+
+  // Override specialized return types
+
+  flip(): Map<V, K>;
+
+  filter(predicate: typeof Boolean): Map<K, $NonMaybeType<V>>;
+  filter(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): Map<K, V>;
+
+  partition(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: V, key: K, iter: this) => M,
+    context?: mixed
+  ): Map<K, M>;
+
+  mapKeys<M>(
+    mapper: (key: K, value: V, iter: this) => M,
+    context?: mixed
+  ): Map<M, V>;
+
+  mapEntries<KM, VM>(
+    mapper: (entry: [K, V], index: number, iter: this) => [KM, VM],
+    context?: mixed
+  ): Map<KM, VM>;
+
+  flatMap<KM, VM>(
+    mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+    context?: mixed
+  ): Map<KM, VM>;
+
+  flatten(depth?: number): Map<any, any>;
+  flatten(shallow?: boolean): Map<any, any>;
+}
+
+declare function isOrderedMap(
+  maybeOrderedMap: mixed
+): boolean %checks(maybeOrderedMap instanceof OrderedMap);
+declare class OrderedMap<K, +V>
+  extends Map<K, V>
+  mixins UpdatableInCollection<K, V>
+{
+  static <K, V>(
+    values?: Iterable<[K, V]> | PlainObjInput<K, V>
+  ): OrderedMap<K, V>;
+
+  static isOrderedMap: typeof isOrderedMap;
+
+  size: number;
+
+  set<K_, V_>(key: K_, value: V_): OrderedMap<K | K_, V | V_>;
+  delete(key: K): this;
+  remove(key: K): this;
+  clear(): this;
+
+  update<U>(updater: (value: this) => U): U;
+  update<V_>(key: K, updater: (value: V) => V_): OrderedMap<K, V | V_>;
+  update<V_>(
+    key: K,
+    notSetValue: V_,
+    updater: (value: V) => V_
+  ): OrderedMap<K, V | V_>;
+
+  merge<K_, V_>(
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): OrderedMap<K | K_, V | V_>;
+  concat<K_, V_>(
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): OrderedMap<K | K_, V | V_>;
+
+  mergeWith<K_, W, X>(
+    merger: (oldVal: V, newVal: W, key: K) => X,
+    ...collections: (Iterable<[K_, W]> | PlainObjInput<K_, W>)[]
+  ): OrderedMap<K | K_, V | W | X>;
+
+  mergeDeep<K_, V_>(
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): OrderedMap<K | K_, V | V_>;
+
+  mergeDeepWith<K_, V_>(
+    merger: (oldVal: any, newVal: any, key: any) => mixed,
+    ...collections: (Iterable<[K_, V_]> | PlainObjInput<K_, V_>)[]
+  ): OrderedMap<K | K_, V | V_>;
+
+  mergeIn(
+    keyPath: Iterable<mixed>,
+    ...collections: (Iterable<mixed> | PlainObjInput<mixed, mixed>)[]
+  ): this;
+  mergeDeepIn(
+    keyPath: Iterable<mixed>,
+    ...collections: (Iterable<mixed> | PlainObjInput<mixed, mixed>)[]
+  ): this;
+
+  withMutations(mutator: (mutable: this) => mixed): this;
+  asMutable(): this;
+  wasAltered(): boolean;
+  asImmutable(): this;
+
+  // Override specialized return types
+
+  flip(): OrderedMap<V, K>;
+
+  filter(predicate: typeof Boolean): OrderedMap<K, $NonMaybeType<V>>;
+  filter(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): OrderedMap<K, V>;
+
+  partition(
+    predicate: (value: V, key: K, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: V, key: K, iter: this) => M,
+    context?: mixed
+  ): OrderedMap<K, M>;
+
+  mapKeys<M>(
+    mapper: (key: K, value: V, iter: this) => M,
+    context?: mixed
+  ): OrderedMap<M, V>;
+
+  mapEntries<KM, VM>(
+    mapper: (entry: [K, V], index: number, iter: this) => [KM, VM],
+    context?: mixed
+  ): OrderedMap<KM, VM>;
+
+  flatMap<KM, VM>(
+    mapper: (value: V, key: K, iter: this) => Iterable<[KM, VM]>,
+    context?: mixed
+  ): OrderedMap<KM, VM>;
+
+  flatten(depth?: number): OrderedMap<any, any>;
+  flatten(shallow?: boolean): OrderedMap<any, any>;
+}
+
+declare function isSet(maybeSet: mixed): boolean %checks(maybeSet instanceof
+  Set);
+declare class Set<+T> extends SetCollection<T> {
+  static <T>(values?: Iterable<T>): Set<T>;
+
+  static of<T>(...values: T[]): Set<T>;
+  static fromKeys<T>(
+    values: Iterable<[T, mixed]> | PlainObjInput<T, mixed>
+  ): Set<T>;
+
+  static intersect(sets: Iterable<Iterable<T>>): Set<T>;
+  static union(sets: Iterable<Iterable<T>>): Set<T>;
+
+  static isSet: typeof isSet;
+
+  size: number;
+
+  add<U>(value: U): Set<T | U>;
+  delete(value: T): this;
+  remove(value: T): this;
+  clear(): this;
+  union<U>(...collections: Iterable<U>[]): Set<T | U>;
+  merge<U>(...collections: Iterable<U>[]): Set<T | U>;
+  concat<U>(...collections: Iterable<U>[]): Set<T | U>;
+  intersect<U>(...collections: Iterable<U>[]): Set<T & U>;
+  subtract(...collections: Iterable<mixed>[]): this;
+
+  withMutations(mutator: (mutable: this) => mixed): this;
+  asMutable(): this;
+  wasAltered(): boolean;
+  asImmutable(): this;
+
+  // Override specialized return types
+
+  filter(predicate: typeof Boolean): Set<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): Set<T>;
+
+  partition(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, value: T, iter: this) => M,
+    context?: mixed
+  ): Set<M>;
+
+  flatMap<M>(
+    mapper: (value: T, value: T, iter: this) => Iterable<M>,
+    context?: mixed
+  ): Set<M>;
+
+  flatten(depth?: number): Set<any>;
+  flatten(shallow?: boolean): Set<any>;
+}
+
+// Overrides except for `isOrderedSet` are for specialized return types
+declare function isOrderedSet(
+  maybeOrderedSet: mixed
+): boolean %checks(maybeOrderedSet instanceof OrderedSet);
+declare class OrderedSet<+T> extends Set<T> {
+  static <T>(values?: Iterable<T>): OrderedSet<T>;
+
+  static of<T>(...values: T[]): OrderedSet<T>;
+  static fromKeys<T>(
+    values: Iterable<[T, mixed]> | PlainObjInput<T, mixed>
+  ): OrderedSet<T>;
+
+  static isOrderedSet: typeof isOrderedSet;
+
+  size: number;
+
+  add<U>(value: U): OrderedSet<T | U>;
+  union<U>(...collections: Iterable<U>[]): OrderedSet<T | U>;
+  merge<U>(...collections: Iterable<U>[]): OrderedSet<T | U>;
+  concat<U>(...collections: Iterable<U>[]): OrderedSet<T | U>;
+  intersect<U>(...collections: Iterable<U>[]): OrderedSet<T & U>;
+
+  filter(predicate: typeof Boolean): OrderedSet<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): OrderedSet<T>;
+
+  partition(
+    predicate: (value: T, value: T, iter: this) => mixed,
+    context?: mixed
+  ): [this, this];
+
+  map<M>(
+    mapper: (value: T, value: T, iter: this) => M,
+    context?: mixed
+  ): OrderedSet<M>;
+
+  flatMap<M>(
+    mapper: (value: T, value: T, iter: this) => Iterable<M>,
+    context?: mixed
+  ): OrderedSet<M>;
+
+  flatten(depth?: number): OrderedSet<any>;
+  flatten(shallow?: boolean): OrderedSet<any>;
+
+  zip<A>(a: Iterable<A>, ..._: []): OrderedSet<[T, A]>;
+  zip<A, B>(a: Iterable<A>, b: Iterable<B>, ..._: []): OrderedSet<[T, A, B]>;
+  zip<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): OrderedSet<[T, A, B, C]>;
+  zip<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): OrderedSet<[T, A, B, C, D]>;
+  zip<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): OrderedSet<[T, A, B, C, D, E]>;
+
+  zipAll<A>(a: Iterable<A>, ..._: []): OrderedSet<[T | void, A | void]>;
+  zipAll<A, B>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): OrderedSet<[T | void, A | void, B | void]>;
+  zipAll<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): OrderedSet<[T | void, A | void, B | void, C | void]>;
+  zipAll<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): OrderedSet<[T | void, A | void, B | void, C | void, D | void]>;
+  zipAll<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): OrderedSet<[T | void, A | void, B | void, C | void, D | void, E | void]>;
+
+  zipWith<A, R>(
+    zipper: (value: T, a: A) => R,
+    a: Iterable<A>,
+    ..._: []
+  ): OrderedSet<R>;
+  zipWith<A, B, R>(
+    zipper: (value: T, a: A, b: B) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): OrderedSet<R>;
+  zipWith<A, B, C, R>(
+    zipper: (value: T, a: A, b: B, c: C) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): OrderedSet<R>;
+  zipWith<A, B, C, D, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): OrderedSet<R>;
+  zipWith<A, B, C, D, E, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D, e: E) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): OrderedSet<R>;
+}
+
+declare function isStack(
+  maybeStack: mixed
+): boolean %checks(maybeStack instanceof Stack);
+declare class Stack<+T> extends IndexedCollection<T> {
+  static <T>(collection?: Iterable<T>): Stack<T>;
+
+  static isStack(maybeStack: mixed): boolean;
+  static of<T>(...values: T[]): Stack<T>;
+
+  static isStack: typeof isStack;
+
+  size: number;
+
+  peek(): T;
+  clear(): this;
+  unshift<U>(...values: U[]): Stack<T | U>;
+  unshiftAll<U>(iter: Iterable<U>): Stack<T | U>;
+  shift(): this;
+  push<U>(...values: U[]): Stack<T | U>;
+  pushAll<U>(iter: Iterable<U>): Stack<T | U>;
+  pop(): this;
+
+  withMutations(mutator: (mutable: this) => mixed): this;
+  asMutable(): this;
+  wasAltered(): boolean;
+  asImmutable(): this;
+
+  // Override specialized return types
+
+  concat<C>(...iters: Array<Iterable<C> | C>): Stack<T | C>;
+
+  filter(predicate: typeof Boolean): Stack<$NonMaybeType<T>>;
+  filter(
+    predicate: (value: T, index: number, iter: this) => mixed,
+    context?: mixed
+  ): Stack<T>;
+
+  map<M>(
+    mapper: (value: T, index: number, iter: this) => M,
+    context?: mixed
+  ): Stack<M>;
+
+  flatMap<M>(
+    mapper: (value: T, index: number, iter: this) => Iterable<M>,
+    context?: mixed
+  ): Stack<M>;
+
+  flatten(depth?: number): Stack<any>;
+  flatten(shallow?: boolean): Stack<any>;
+
+  zip<A>(a: Iterable<A>, ..._: []): Stack<[T, A]>;
+  zip<A, B>(a: Iterable<A>, b: Iterable<B>, ..._: []): Stack<[T, A, B]>;
+  zip<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): Stack<[T, A, B, C]>;
+  zip<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): Stack<[T, A, B, C, D]>;
+  zip<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): Stack<[T, A, B, C, D, E]>;
+
+  zipAll<A>(a: Iterable<A>, ..._: []): Stack<[T | void, A | void]>;
+  zipAll<A, B>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): Stack<[T | void, A | void, B | void]>;
+  zipAll<A, B, C>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): Stack<[T | void, A | void, B | void, C | void]>;
+  zipAll<A, B, C, D>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): Stack<[T | void, A | void, B | void, C | void, D | void]>;
+  zipAll<A, B, C, D, E>(
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): Stack<[T | void, A | void, B | void, C | void, D | void, E | void]>;
+
+  zipWith<A, R>(
+    zipper: (value: T, a: A) => R,
+    a: Iterable<A>,
+    ..._: []
+  ): Stack<R>;
+  zipWith<A, B, R>(
+    zipper: (value: T, a: A, b: B) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    ..._: []
+  ): Stack<R>;
+  zipWith<A, B, C, R>(
+    zipper: (value: T, a: A, b: B, c: C) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    ..._: []
+  ): Stack<R>;
+  zipWith<A, B, C, D, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    ..._: []
+  ): Stack<R>;
+  zipWith<A, B, C, D, E, R>(
+    zipper: (value: T, a: A, b: B, c: C, d: D, e: E) => R,
+    a: Iterable<A>,
+    b: Iterable<B>,
+    c: Iterable<C>,
+    d: Iterable<D>,
+    e: Iterable<E>,
+    ..._: []
+  ): Stack<R>;
+}
+
+declare function Range(
+  start?: number,
+  end?: number,
+  step?: number
+): IndexedSeq<number>;
+declare function Repeat<T>(value: T, times?: number): IndexedSeq<T>;
+
+// The type of a Record factory function.
+type RecordFactory<Values: Object> = Class<RecordInstance<Values>>;
+
+// The type of runtime Record instances.
+type RecordOf<Values: Object> = RecordInstance<Values> & $ReadOnly<Values>;
+
+// The values of a Record instance.
+type _RecordValues<T, R: RecordInstance<T> | T> = R;
+type RecordValues<R> = _RecordValues<*, R>;
+
+declare function isRecord(
+  maybeRecord: any
+): boolean %checks(maybeRecord instanceof RecordInstance);
+declare class Record {
+  static <Values: Object>(spec: Values, name?: string): typeof RecordInstance;
+  constructor<Values: Object>(
+    spec: Values,
+    name?: string
+  ): typeof RecordInstance;
+
+  static isRecord: typeof isRecord;
+
+  static getDescriptiveName(record: RecordInstance<any>): string;
+}
+
+declare class RecordInstance<T: Object = Object> {
+  static (values?: Iterable<[$Keys<T>, $ValOf<T>]> | $Shape<T>): RecordOf<T>;
+  // Note: a constructor can only create an instance of RecordInstance<T>,
+  // it's encouraged to not use `new` when creating Records.
+  constructor(values?: Iterable<[$Keys<T>, $ValOf<T>]> | $Shape<T>): void;
+
+  size: number;
+
+  has(key: string): boolean;
+
+  get<K: $Keys<T>>(key: K, ..._: []): $ElementType<T, K>;
+  get<K: $Keys<T>, NSV>(key: K, notSetValue: NSV): $ElementType<T, K> | NSV;
+
+  hasIn(keyPath: Iterable<mixed>): boolean;
+
+  getIn(keyPath: [], notSetValue?: mixed): this & $ReadOnly<T>;
+  getIn<K: $Keys<T>>(keyPath: [K], notSetValue?: mixed): $ElementType<T, K>;
+  getIn<NSV, K: $Keys<T>, K2: $KeyOf<$ValOf<T, K>>>(
+    keyPath: [K, K2],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<T, K>, K2> | NSV;
+  getIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>
+  >(
+    keyPath: [K, K2, K3],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<$ValOf<T, K>, K2>, K3> | NSV;
+  getIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>
+  >(
+    keyPath: [K, K2, K3, K4],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4> | NSV;
+  getIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    notSetValue: NSV
+  ): $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>, K5> | NSV;
+
+  equals(other: any): boolean;
+  hashCode(): number;
+
+  set<K: $Keys<T>>(key: K, value: $ElementType<T, K>): this & $ReadOnly<T>;
+  update<K: $Keys<T>>(
+    key: K,
+    updater: (value: $ElementType<T, K>) => $ElementType<T, K>
+  ): this & $ReadOnly<T>;
+  merge(
+    ...collections: Array<Iterable<[$Keys<T>, $ValOf<T>]> | $Shape<T>>
+  ): this & $ReadOnly<T>;
+  mergeDeep(
+    ...collections: Array<Iterable<[$Keys<T>, $ValOf<T>]> | $Shape<T>>
+  ): this & $ReadOnly<T>;
+
+  mergeWith(
+    merger: (oldVal: $ValOf<T>, newVal: $ValOf<T>, key: $Keys<T>) => $ValOf<T>,
+    ...collections: Array<Iterable<[$Keys<T>, $ValOf<T>]> | $Shape<T>>
+  ): this & $ReadOnly<T>;
+  mergeDeepWith(
+    merger: (oldVal: any, newVal: any, key: any) => any,
+    ...collections: Array<Iterable<[$Keys<T>, $ValOf<T>]> | $Shape<T>>
+  ): this & $ReadOnly<T>;
+
+  delete<K: $Keys<T>>(key: K): this & $ReadOnly<T>;
+  remove<K: $Keys<T>>(key: K): this & $ReadOnly<T>;
+  clear(): this & $ReadOnly<T>;
+
+  setIn<S>(keyPath: [], value: S): S;
+  setIn<K: $Keys<T>, S: $ValOf<T, K>>(
+    keyPath: [K],
+    value: S
+  ): this & $ReadOnly<T>;
+  setIn<K: $Keys<T>, K2: $KeyOf<$ValOf<T, K>>, S: $ValOf<$ValOf<T, K>, K2>>(
+    keyPath: [K, K2],
+    value: S
+  ): this & $ReadOnly<T>;
+  setIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    S: $ValOf<$ValOf<$ValOf<T, K>, K2>, K3>
+  >(
+    keyPath: [K, K2, K3],
+    value: S
+  ): this & $ReadOnly<T>;
+  setIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>
+  >(
+    keyPath: [K, K2, K3, K4],
+    value: S
+  ): this & $ReadOnly<T>;
+  setIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>, K5>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    value: S
+  ): this & $ReadOnly<T>;
+
+  deleteIn(keyPath: []): void;
+  deleteIn<K: $Keys<T>>(keyPath: [K]): this & $ReadOnly<T>;
+  deleteIn<K: $Keys<T>, K2: $KeyOf<$ValOf<T, K>>>(
+    keyPath: [K, K2]
+  ): this & $ReadOnly<T>;
+  deleteIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>
+  >(
+    keyPath: [K, K2, K3]
+  ): this & $ReadOnly<T>;
+  deleteIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>
+  >(
+    keyPath: [K, K2, K3, K4]
+  ): this & $ReadOnly<T>;
+  deleteIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>>
+  >(
+    keyPath: [K, K2, K3, K4, K5]
+  ): this & $ReadOnly<T>;
+
+  removeIn(keyPath: []): void;
+  removeIn<K: $Keys<T>>(keyPath: [K]): this & $ReadOnly<T>;
+  removeIn<K: $Keys<T>, K2: $KeyOf<$ValOf<T, K>>>(
+    keyPath: [K, K2]
+  ): this & $ReadOnly<T>;
+  removeIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>
+  >(
+    keyPath: [K, K2, K3]
+  ): this & $ReadOnly<T>;
+  removeIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>
+  >(
+    keyPath: [K, K2, K3, K4]
+  ): this & $ReadOnly<T>;
+  removeIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>>
+  >(
+    keyPath: [K, K2, K3, K4, K5]
+  ): this & $ReadOnly<T>;
+
+  updateIn<U>(
+    keyPath: [],
+    notSetValue: mixed,
+    updater: (value: this & T) => U
+  ): U;
+  updateIn<U>(keyPath: [], updater: (value: this & T) => U): U;
+  updateIn<NSV, K: $Keys<T>, S: $ValOf<T, K>>(
+    keyPath: [K],
+    notSetValue: NSV,
+    updater: (value: $ValOf<T, K>) => S
+  ): this & $ReadOnly<T>;
+  updateIn<K: $Keys<T>, S: $ValOf<T, K>>(
+    keyPath: [K],
+    updater: (value: $ValOf<T, K>) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    S: $ValOf<$ValOf<T, K>, K2>
+  >(
+    keyPath: [K, K2],
+    notSetValue: NSV,
+    updater: (value: $ValOf<$ValOf<T, K>, K2> | NSV) => S
+  ): this & $ReadOnly<T>;
+  updateIn<K: $Keys<T>, K2: $KeyOf<$ValOf<T, K>>, S: $ValOf<$ValOf<T, K>, K2>>(
+    keyPath: [K, K2],
+    updater: (value: $ValOf<$ValOf<T, K>, K2>) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    S: $ValOf<$ValOf<$ValOf<T, K>, K2>, K3>
+  >(
+    keyPath: [K, K2, K3],
+    notSetValue: NSV,
+    updater: (value: $ValOf<$ValOf<$ValOf<T, K>, K2>, K3> | NSV) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    S: $ValOf<$ValOf<$ValOf<T, K>, K2>, K3>
+  >(
+    keyPath: [K, K2, K3],
+    updater: (value: $ValOf<$ValOf<$ValOf<T, K>, K2>, K3>) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>
+  >(
+    keyPath: [K, K2, K3, K4],
+    notSetValue: NSV,
+    updater: (
+      value: $ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4> | NSV
+    ) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>
+  >(
+    keyPath: [K, K2, K3, K4],
+    updater: (value: $ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    NSV,
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>, K5>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    notSetValue: NSV,
+    updater: (
+      value: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>, K5> | NSV
+    ) => S
+  ): this & $ReadOnly<T>;
+  updateIn<
+    K: $Keys<T>,
+    K2: $KeyOf<$ValOf<T, K>>,
+    K3: $KeyOf<$ValOf<$ValOf<T, K>, K2>>,
+    K4: $KeyOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>>,
+    K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>>,
+    S: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>, K5>
+  >(
+    keyPath: [K, K2, K3, K4, K5],
+    updater: (
+      value: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<T, K>, K2>, K3>, K4>, K5>
+    ) => S
+  ): this & $ReadOnly<T>;
+
+  mergeIn(
+    keyPath: Iterable<mixed>,
+    ...collections: Array<any>
+  ): this & $ReadOnly<T>;
+  mergeDeepIn(
+    keyPath: Iterable<mixed>,
+    ...collections: Array<any>
+  ): this & $ReadOnly<T>;
+
+  toSeq(): KeyedSeq<$Keys<T>, any>;
+
+  toJS(): { [key: $Keys<T>]: mixed };
+  toJSON(): T;
+  toObject(): T;
+
+  withMutations(mutator: (mutable: this & T) => mixed): this & $ReadOnly<T>;
+  asMutable(): this & $ReadOnly<T>;
+  wasAltered(): boolean;
+  asImmutable(): this & $ReadOnly<T>;
+
+  @@iterator(): Iterator<[$Keys<T>, $ValOf<T>]>;
+}
+
+declare function fromJS(
+  jsValue: mixed,
+  reviver?: (
+    key: string | number,
+    sequence: KeyedCollection<string, mixed> | IndexedCollection<mixed>,
+    path?: Array<string | number>
+  ) => mixed
+): Collection<mixed, mixed>;
+
+declare function is(first: mixed, second: mixed): boolean;
+declare function hash(value: mixed): number;
+
+declare function get<C: Object, K: $Keys<C>>(
+  collection: C,
+  key: K,
+  notSetValue: mixed
+): $ValOf<C, K>;
+declare function get<C, K: $KeyOf<C>, NSV>(
+  collection: C,
+  key: K,
+  notSetValue: NSV
+): $ValOf<C, K> | NSV;
+
+declare function has(collection: Object, key: mixed): boolean;
+declare function remove<C>(collection: C, key: $KeyOf<C>): C;
+declare function set<C, K: $KeyOf<C>, V: $ValOf<C, K>>(
+  collection: C,
+  key: K,
+  value: V
+): C;
+declare function update<C, K: $KeyOf<C>, V: $ValOf<C, K>, NSV>(
+  collection: C,
+  key: K,
+  notSetValue: NSV,
+  updater: ($ValOf<C, K> | NSV) => V
+): C;
+declare function update<C, K: $KeyOf<C>, V: $ValOf<C, K>>(
+  collection: C,
+  key: K,
+  updater: ($ValOf<C, K>) => V
+): C;
+
+declare function getIn<C>(collection: C, keyPath: [], notSetValue?: mixed): C;
+declare function getIn<C, K: $KeyOf<C>, NSV>(
+  collection: C,
+  keyPath: [K],
+  notSetValue: NSV
+): $ValOf<C, K> | NSV;
+declare function getIn<C, K: $KeyOf<C>, K2: $KeyOf<$ValOf<C, K>>, NSV>(
+  collection: C,
+  keyPath: [K, K2],
+  notSetValue: NSV
+): $ValOf<$ValOf<C, K>, K2> | NSV;
+declare function getIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2, K3],
+  notSetValue: NSV
+): $ValOf<$ValOf<$ValOf<C, K>, K2>, K3> | NSV;
+declare function getIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4],
+  notSetValue: NSV
+): $ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4> | NSV;
+declare function getIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4, K5],
+  notSetValue: NSV
+): $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>, K5> | NSV;
+
+declare function hasIn(collection: Object, keyPath: Iterable<mixed>): boolean;
+
+declare function removeIn<C>(collection: C, keyPath: []): void;
+declare function removeIn<C, K: $KeyOf<C>>(collection: C, keyPath: [K]): C;
+declare function removeIn<C, K: $KeyOf<C>, K2: $KeyOf<$ValOf<C, K>>>(
+  collection: C,
+  keyPath: [K, K2]
+): C;
+declare function removeIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>
+>(
+  collection: C,
+  keyPath: [K, K2, K3]
+): C;
+declare function removeIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4]
+): C;
+declare function removeIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>>
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4, K5]
+): C;
+
+declare function setIn<S>(collection: Object, keyPath: [], value: S): S;
+declare function setIn<C, K: $KeyOf<C>, S: $ValOf<C, K>>(
+  collection: C,
+  keyPath: [K],
+  value: S
+): C;
+declare function setIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  S: $ValOf<$ValOf<C, K>, K2>
+>(
+  collection: C,
+  keyPath: [K, K2],
+  value: S
+): C;
+declare function setIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  S: $ValOf<$ValOf<$ValOf<C, K>, K2>, K3>
+>(
+  collection: C,
+  keyPath: [K, K2, K3],
+  value: S
+): C;
+declare function setIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  S: $ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4],
+  value: S
+): C;
+declare function setIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>>,
+  S: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>, K5>
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4, K5],
+  value: S
+): C;
+
+declare function updateIn<C, S>(
+  collection: C,
+  keyPath: [],
+  notSetValue: mixed,
+  updater: (value: C) => S
+): S;
+declare function updateIn<C, S>(
+  collection: C,
+  keyPath: [],
+  updater: (value: C) => S
+): S;
+declare function updateIn<C, K: $KeyOf<C>, S: $ValOf<C, K>, NSV>(
+  collection: C,
+  keyPath: [K],
+  notSetValue: NSV,
+  updater: (value: $ValOf<C, K> | NSV) => S
+): C;
+declare function updateIn<C, K: $KeyOf<C>, S: $ValOf<C, K>>(
+  collection: C,
+  keyPath: [K],
+  updater: (value: $ValOf<C, K>) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  S: $ValOf<$ValOf<C, K>, K2>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2],
+  notSetValue: NSV,
+  updater: (value: $ValOf<$ValOf<C, K>, K2> | NSV) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  S: $ValOf<$ValOf<C, K>, K2>
+>(
+  collection: C,
+  keyPath: [K, K2],
+  updater: (value: $ValOf<$ValOf<C, K>, K2>) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  S: $ValOf<$ValOf<$ValOf<C, K>, K2>, K3>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2, K3],
+  notSetValue: NSV,
+  updater: (value: $ValOf<$ValOf<$ValOf<C, K>, K2>, K3> | NSV) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  S: $ValOf<$ValOf<$ValOf<C, K>, K2>, K3>
+>(
+  collection: C,
+  keyPath: [K, K2, K3],
+  updater: (value: $ValOf<$ValOf<$ValOf<C, K>, K2>, K3>) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  S: $ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4],
+  notSetValue: NSV,
+  updater: (value: $ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4> | NSV) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  S: $ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4],
+  updater: (value: $ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>>,
+  S: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>, K5>,
+  NSV
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4, K5],
+  notSetValue: NSV,
+  updater: (
+    value: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>, K5> | NSV
+  ) => S
+): C;
+declare function updateIn<
+  C,
+  K: $KeyOf<C>,
+  K2: $KeyOf<$ValOf<C, K>>,
+  K3: $KeyOf<$ValOf<$ValOf<C, K>, K2>>,
+  K4: $KeyOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>>,
+  K5: $KeyOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>>,
+  S: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>, K5>
+>(
+  collection: C,
+  keyPath: [K, K2, K3, K4, K5],
+  updater: (
+    value: $ValOf<$ValOf<$ValOf<$ValOf<$ValOf<C, K>, K2>, K3>, K4>, K5>
+  ) => S
+): C;
+
+declare function merge<C>(
+  collection: C,
+  ...collections: Array<
+    | $IterableOf<C>
+    | $Shape<RecordValues<C>>
+    | PlainObjInput<$KeyOf<C>, $ValOf<C>>
+  >
+): C;
+declare function mergeWith<C>(
+  merger: (oldVal: $ValOf<C>, newVal: $ValOf<C>, key: $KeyOf<C>) => $ValOf<C>,
+  collection: C,
+  ...collections: Array<
+    | $IterableOf<C>
+    | $Shape<RecordValues<C>>
+    | PlainObjInput<$KeyOf<C>, $ValOf<C>>
+  >
+): C;
+declare function mergeDeep<C>(
+  collection: C,
+  ...collections: Array<
+    | $IterableOf<C>
+    | $Shape<RecordValues<C>>
+    | PlainObjInput<$KeyOf<C>, $ValOf<C>>
+  >
+): C;
+declare function mergeDeepWith<C>(
+  merger: (oldVal: any, newVal: any, key: any) => mixed,
+  collection: C,
+  ...collections: Array<
+    | $IterableOf<C>
+    | $Shape<RecordValues<C>>
+    | PlainObjInput<$KeyOf<C>, $ValOf<C>>
+  >
+): C;
+
+export {
+  Collection,
+  Seq,
+  List,
+  Map,
+  OrderedMap,
+  OrderedSet,
+  Range,
+  Repeat,
+  Record,
+  Set,
+  Stack,
+  fromJS,
+  is,
+  hash,
+  isImmutable,
+  isCollection,
+  isKeyed,
+  isIndexed,
+  isAssociative,
+  isOrdered,
+  isRecord,
+  isValueObject,
+  get,
+  has,
+  remove,
+  set,
+  update,
+  getIn,
+  hasIn,
+  removeIn,
+  setIn,
+  updateIn,
+  merge,
+  mergeWith,
+  mergeDeep,
+  mergeDeepWith,
+};
+
+export default {
+  Collection,
+  Seq,
+
+  List,
+  Map,
+  OrderedMap,
+  OrderedSet,
+  PairSorting,
+  Range,
+  Repeat,
+  Record,
+  Set,
+  Stack,
+
+  fromJS,
+  is,
+  hash,
+
+  isImmutable,
+  isCollection,
+  isKeyed,
+  isIndexed,
+  isAssociative,
+  isOrdered,
+  isRecord,
+  isValueObject,
+
+  get,
+  has,
+  remove,
+  set,
+  update,
+  getIn,
+  hasIn,
+  removeIn,
+  setIn,
+  updateIn,
+  merge,
+  mergeWith,
+  mergeDeep,
+  mergeDeepWith,
+};
+
+export type {
+  Comparator,
+  KeyedCollection,
+  IndexedCollection,
+  SetCollection,
+  KeyedSeq,
+  IndexedSeq,
+  SetSeq,
+  RecordFactory,
+  RecordOf,
+  RecordInstance,
+  ValueObject,
+  $KeyOf,
+  $ValOf,
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.min.js b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.min.js
new file mode 100644
index 00000000..b502eaaf
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/dist/immutable.min.js
@@ -0,0 +1,55 @@
+/**
+ * MIT License
+ * 
+ * Copyright (c) 2014-present, Lee Byron and other contributors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).Immutable={})}(this,function(t){"use strict";var e="delete",d=5,l=1<<d,g=l-1,v={};function u(){return{value:!1}}function _(t){t&&(t.value=!0)}function m(){}function c(t){return void 0===t.size&&(t.size=t.__iterate(r)),t.size}function h(t,e){if("number"!=typeof e){var r=e>>>0;if(""+r!==e||4294967295==r)return NaN;e=r}return e<0?c(t)+e:e}function r(){return!0}function p(t,e,r){return(0===t&&!i(t)||void 0!==r&&t<=-r)&&(void 0===e||void 0!==r&&r<=e)}function y(t,e){return n(t,e,0)}function w(t,e){return n(t,e,e)}function n(t,e,r){return void 0===t?r:i(t)?e===1/0?e:0|Math.max(0,e+t):void 0===e||e===t?t:0|Math.min(e,t)}function i(t){return t<0||0===t&&1/t==-1/0}var o="@@__IMMUTABLE_ITERABLE__@@";function f(t){return!(!t||!t[o])}var s="@@__IMMUTABLE_KEYED__@@";function a(t){return!(!t||!t[s])}var S="@@__IMMUTABLE_INDEXED__@@";function z(t){return!(!t||!t[S])}function b(t){return a(t)||z(t)}function I(t){return f(t)?t:F(t)}var O=function(t){function e(t){return a(t)?t:G(t)}return e.__proto__=t,(e.prototype=Object.create(t.prototype)).constructor=e}(I),E=function(t){function e(t){return z(t)?t:Z(t)}return e.__proto__=t,(e.prototype=Object.create(t.prototype)).constructor=e}(I),j=function(t){function e(t){return f(t)&&!b(t)?t:$(t)}return e.__proto__=t,(e.prototype=Object.create(t.prototype)).constructor=e}(I);I.Keyed=O,I.Indexed=E,I.Set=j;var q="@@__IMMUTABLE_SEQ__@@";function M(t){return!(!t||!t[q])}var D="@@__IMMUTABLE_RECORD__@@";function x(t){return!(!t||!t[D])}function A(t){return f(t)||x(t)}var k="@@__IMMUTABLE_ORDERED__@@";function R(t){return!(!t||!t[k])}var U=0,T=1,K=2,L="function"==typeof Symbol&&Symbol.iterator,C="@@iterator",B=L||C,P=function(t){this.next=t};function W(t,e,r,n){r=0===t?e:1===t?r:[e,r];return n?n.value=r:n={value:r,done:!1},n}function N(){return{value:void 0,done:!0}}function H(t){return Array.isArray(t
+)||Y(t)}function J(t){return t&&"function"==typeof t.next}function V(t){var e=Y(t);return e&&e.call(t)}function Y(t){t=t&&(L&&t[L]||t[C]);if("function"==typeof t)return t}P.prototype.toString=function(){return"[Iterator]"},P.KEYS=U,P.VALUES=T,P.ENTRIES=K,P.prototype.inspect=P.prototype.toSource=function(){return""+this},P.prototype[B]=function(){return this};var Q=Object.prototype.hasOwnProperty;function X(t){return Array.isArray(t)||"string"==typeof t||t&&"object"==typeof t&&Number.isInteger(t.length)&&0<=t.length&&(0===t.length?1===Object.keys(t).length:t.hasOwnProperty(t.length-1))}var F=function(t){function e(t){return null==t?it():A(t)?t.toSeq():function(t){var e=st(t);if(e)return function(t){var e=Y(t);return e&&e===t.entries}(t)?e.fromEntrySeq():function(t){var e=Y(t);return e&&e===t.keys}(t)?e.toSetSeq():e;if("object"!=typeof t)throw new TypeError("Expected Array or collection object of values, or keyed object: "+t);return new et(t)}(t)}return e.__proto__=t,((e.prototype=Object.create(t.prototype)).constructor=e).prototype.toSeq=function(){return this},e.prototype.toString=function(){return this.__toString("Seq {","}")},e.prototype.cacheResult=function(){return!this._cache&&this.__iterateUncached&&(this._cache=this.entrySeq().toArray(),this.size=this._cache.length),this},e.prototype.__iterate=function(t,e){var r=this._cache;if(r){for(var n=r.length,i=0;i!==n;){var o=r[e?n-++i:i++];if(!1===t(o[1],o[0],this))break}return i}return this.__iterateUncached(t,e)},e.prototype.__iterator=function(e,r){var n=this._cache;if(n){var i=n.length,o=0;return new P(function(){if(o===i)return N();var t=n[r?i-++o:o++];return W(e,t[0],t[1])})}return this.__iteratorUncached(e,r)},e}(I),G=function(t){function e(t){return null==t?it().toKeyedSeq():f(t)?a(t)?t.toSeq():t.fromEntrySeq():x(t)?t.toSeq():ot(t)}return t&&(e.__proto__=t),((e.prototype=Object.create(t&&t.prototype)).constructor=e).prototype.toKeyedSeq=function(){return this},e}(F),Z=function(t){function e(t){return null==t?it():f(t)?a(t)?t.entrySeq():t.toIndexedSeq():x(t
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+isPlainObject:ne,isSeq:M,isList:or,isMap:ct,isOrderedMap:ft,isStack:Or,isSet:Ar,isOrderedSet:kr,isRecord:x,get:se,getIn:Jr,has:ue,hasIn:Yr,merge:ze,mergeDeep:Ie,mergeWith:be,mergeDeepWith:Oe,remove:ce,removeIn:le,set:fe,setIn:_e,update:ye,updateIn:he},Xr=I;t.Collection=I,t.Iterable=Xr,t.List=ur,t.Map=Te,t.OrderedMap=wr,t.OrderedSet=an,t.PairSorting=Zr,t.Range=Hr,t.Record=Gr,t.Repeat=e,t.Seq=F,t.Set=Kr,t.Stack=Er,t.default=B,t.fromJS=gn,t.get=se,t.getIn=Jr,t.has=ue,t.hasIn=Yr,t.hash=yt,t.is=_t,t.isAssociative=b,t.isCollection=f,t.isImmutable=A,t.isIndexed=z,t.isKeyed=a,t.isList=or,t.isMap=ct,t.isOrdered=R,t.isOrderedMap=ft,t.isOrderedSet=kr,t.isPlainObject=ne,t.isRecord=x,t.isSeq=M,t.isSet=Ar,t.isStack=Or,t.isValueObject=ht,t.merge=ze,t.mergeDeep=Ie,t.mergeDeepWith=Oe,t.mergeWith=be,t.remove=ce,t.removeIn=le,t.set=fe,t.setIn=_e,t.update=ye,t.updateIn=he,t.version="4.3.6",Object.defineProperty(t,"__esModule",{value:!0})});
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/immutable/package.json b/src/main/webapp/com/css/sass/node_modules/immutable/package.json
new file mode 100644
index 00000000..431cf9a5
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/immutable/package.json
@@ -0,0 +1,39 @@
+{
+  "name": "immutable",
+  "version": "4.3.6",
+  "description": "Immutable Data Collections",
+  "license": "MIT",
+  "homepage": "https://immutable-js.com",
+  "author": {
+    "name": "Lee Byron",
+    "url": "https://github.com/leebyron"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/immutable-js/immutable-js.git"
+  },
+  "bugs": {
+    "url": "https://github.com/immutable-js/immutable-js/issues"
+  },
+  "main": "dist/immutable.js",
+  "module": "dist/immutable.es.js",
+  "sideEffects": false,
+  "types": "dist/immutable.d.ts",
+  "files": [
+    "dist",
+    "README.md",
+    "LICENSE"
+  ],
+  "keywords": [
+    "immutable",
+    "persistent",
+    "lazy",
+    "data",
+    "datastructure",
+    "functional",
+    "collection",
+    "stateless",
+    "sequence",
+    "iteration"
+  ]
+}
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/is-binary-path/index.d.ts b/src/main/webapp/com/css/sass/node_modules/is-binary-path/index.d.ts
new file mode 100644
index 00000000..19dcd432
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-binary-path/index.d.ts
@@ -0,0 +1,17 @@
+/**
+Check if a file path is a binary file.
+
+@example
+```
+import isBinaryPath = require('is-binary-path');
+
+isBinaryPath('source/unicorn.png');
+//=> true
+
+isBinaryPath('source/unicorn.txt');
+//=> false
+```
+*/
+declare function isBinaryPath(filePath: string): boolean;
+
+export = isBinaryPath;
diff --git a/src/main/webapp/com/css/sass/node_modules/is-binary-path/index.js b/src/main/webapp/com/css/sass/node_modules/is-binary-path/index.js
new file mode 100644
index 00000000..ef7548c8
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-binary-path/index.js
@@ -0,0 +1,7 @@
+'use strict';
+const path = require('path');
+const binaryExtensions = require('binary-extensions');
+
+const extensions = new Set(binaryExtensions);
+
+module.exports = filePath => extensions.has(path.extname(filePath).slice(1).toLowerCase());
diff --git a/src/main/webapp/com/css/sass/node_modules/is-binary-path/license b/src/main/webapp/com/css/sass/node_modules/is-binary-path/license
new file mode 100644
index 00000000..401b1c73
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-binary-path/license
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) 2019 Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com), Paul Miller (https://paulmillr.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/is-binary-path/package.json b/src/main/webapp/com/css/sass/node_modules/is-binary-path/package.json
new file mode 100644
index 00000000..a8d005ae
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-binary-path/package.json
@@ -0,0 +1,40 @@
+{
+	"name": "is-binary-path",
+	"version": "2.1.0",
+	"description": "Check if a file path is a binary file",
+	"license": "MIT",
+	"repository": "sindresorhus/is-binary-path",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"binary",
+		"extensions",
+		"extension",
+		"file",
+		"path",
+		"check",
+		"detect",
+		"is"
+	],
+	"dependencies": {
+		"binary-extensions": "^2.0.0"
+	},
+	"devDependencies": {
+		"ava": "^1.4.1",
+		"tsd": "^0.7.2",
+		"xo": "^0.24.0"
+	}
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/is-binary-path/readme.md b/src/main/webapp/com/css/sass/node_modules/is-binary-path/readme.md
new file mode 100644
index 00000000..b4ab0251
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-binary-path/readme.md
@@ -0,0 +1,34 @@
+# is-binary-path [![Build Status](https://travis-ci.org/sindresorhus/is-binary-path.svg?branch=master)](https://travis-ci.org/sindresorhus/is-binary-path)
+
+> Check if a file path is a binary file
+
+
+## Install
+
+```
+$ npm install is-binary-path
+```
+
+
+## Usage
+
+```js
+const isBinaryPath = require('is-binary-path');
+
+isBinaryPath('source/unicorn.png');
+//=> true
+
+isBinaryPath('source/unicorn.txt');
+//=> false
+```
+
+
+## Related
+
+- [binary-extensions](https://github.com/sindresorhus/binary-extensions) - List of binary file extensions
+- [is-text-path](https://github.com/sindresorhus/is-text-path) - Check if a filepath is a text file
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com), [Paul Miller](https://paulmillr.com)
diff --git a/src/main/webapp/com/css/sass/node_modules/is-extglob/LICENSE b/src/main/webapp/com/css/sass/node_modules/is-extglob/LICENSE
new file mode 100644
index 00000000..842218cf
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-extglob/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2016, Jon Schlinkert
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/is-extglob/README.md b/src/main/webapp/com/css/sass/node_modules/is-extglob/README.md
new file mode 100644
index 00000000..0416af5c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-extglob/README.md
@@ -0,0 +1,107 @@
+# is-extglob [![NPM version](https://img.shields.io/npm/v/is-extglob.svg?style=flat)](https://www.npmjs.com/package/is-extglob) [![NPM downloads](https://img.shields.io/npm/dm/is-extglob.svg?style=flat)](https://npmjs.org/package/is-extglob) [![Build Status](https://img.shields.io/travis/jonschlinkert/is-extglob.svg?style=flat)](https://travis-ci.org/jonschlinkert/is-extglob)
+
+> Returns true if a string has an extglob.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save is-extglob
+```
+
+## Usage
+
+```js
+var isExtglob = require('is-extglob');
+```
+
+**True**
+
+```js
+isExtglob('?(abc)');
+isExtglob('@(abc)');
+isExtglob('!(abc)');
+isExtglob('*(abc)');
+isExtglob('+(abc)');
+```
+
+**False**
+
+Escaped extglobs:
+
+```js
+isExtglob('\\?(abc)');
+isExtglob('\\@(abc)');
+isExtglob('\\!(abc)');
+isExtglob('\\*(abc)');
+isExtglob('\\+(abc)');
+```
+
+Everything else...
+
+```js
+isExtglob('foo.js');
+isExtglob('!foo.js');
+isExtglob('*.js');
+isExtglob('**/abc.js');
+isExtglob('abc/*.js');
+isExtglob('abc/(aaa|bbb).js');
+isExtglob('abc/[a-z].js');
+isExtglob('abc/{a,b}.js');
+isExtglob('abc/?.js');
+isExtglob('abc.js');
+isExtglob('abc/def/ghi.js');
+```
+
+## History
+
+**v2.0**
+
+Adds support for escaping. Escaped exglobs no longer return true.
+
+## About
+
+### Related projects
+
+* [has-glob](https://www.npmjs.com/package/has-glob): Returns `true` if an array has a glob pattern. | [homepage](https://github.com/jonschlinkert/has-glob "Returns `true` if an array has a glob pattern.")
+* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern… [more](https://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet")
+* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
+
+### Contributing
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+### Building docs
+
+_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_
+
+To generate the readme and API documentation with [verb](https://github.com/verbose/verb):
+
+```sh
+$ npm install -g verb verb-generate-readme && verb
+```
+
+### Running tests
+
+Install dev dependencies:
+
+```sh
+$ npm install -d && npm test
+```
+
+### Author
+
+**Jon Schlinkert**
+
+* [github/jonschlinkert](https://github.com/jonschlinkert)
+* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
+
+### License
+
+Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT license](https://github.com/jonschlinkert/is-extglob/blob/master/LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 12, 2016._
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/is-extglob/index.js b/src/main/webapp/com/css/sass/node_modules/is-extglob/index.js
new file mode 100644
index 00000000..c1d986fc
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-extglob/index.js
@@ -0,0 +1,20 @@
+/*!
+ * is-extglob <https://github.com/jonschlinkert/is-extglob>
+ *
+ * Copyright (c) 2014-2016, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+module.exports = function isExtglob(str) {
+  if (typeof str !== 'string' || str === '') {
+    return false;
+  }
+
+  var match;
+  while ((match = /(\\).|([@?!+*]\(.*\))/g.exec(str))) {
+    if (match[2]) return true;
+    str = str.slice(match.index + match[0].length);
+  }
+
+  return false;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/is-extglob/package.json b/src/main/webapp/com/css/sass/node_modules/is-extglob/package.json
new file mode 100644
index 00000000..7a908369
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-extglob/package.json
@@ -0,0 +1,69 @@
+{
+  "name": "is-extglob",
+  "description": "Returns true if a string has an extglob.",
+  "version": "2.1.1",
+  "homepage": "https://github.com/jonschlinkert/is-extglob",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "repository": "jonschlinkert/is-extglob",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/is-extglob/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "devDependencies": {
+    "gulp-format-md": "^0.1.10",
+    "mocha": "^3.0.2"
+  },
+  "keywords": [
+    "bash",
+    "braces",
+    "check",
+    "exec",
+    "expression",
+    "extglob",
+    "glob",
+    "globbing",
+    "globstar",
+    "is",
+    "match",
+    "matches",
+    "pattern",
+    "regex",
+    "regular",
+    "string",
+    "test"
+  ],
+  "verb": {
+    "toc": false,
+    "layout": "default",
+    "tasks": [
+      "readme"
+    ],
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "related": {
+      "list": [
+        "has-glob",
+        "is-glob",
+        "micromatch"
+      ]
+    },
+    "reflinks": [
+      "verb",
+      "verb-generate-readme"
+    ],
+    "lint": {
+      "reflinks": true
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/is-glob/LICENSE b/src/main/webapp/com/css/sass/node_modules/is-glob/LICENSE
new file mode 100644
index 00000000..3f2eca18
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-glob/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2017, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/is-glob/README.md b/src/main/webapp/com/css/sass/node_modules/is-glob/README.md
new file mode 100644
index 00000000..740724b2
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-glob/README.md
@@ -0,0 +1,206 @@
+# is-glob [![NPM version](https://img.shields.io/npm/v/is-glob.svg?style=flat)](https://www.npmjs.com/package/is-glob) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-glob.svg?style=flat)](https://npmjs.org/package/is-glob) [![NPM total downloads](https://img.shields.io/npm/dt/is-glob.svg?style=flat)](https://npmjs.org/package/is-glob) [![Build Status](https://img.shields.io/github/workflow/status/micromatch/is-glob/dev)](https://github.com/micromatch/is-glob/actions)
+
+> Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience.
+
+Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save is-glob
+```
+
+You might also be interested in [is-valid-glob](https://github.com/jonschlinkert/is-valid-glob) and [has-glob](https://github.com/jonschlinkert/has-glob).
+
+## Usage
+
+```js
+var isGlob = require('is-glob');
+```
+
+### Default behavior
+
+**True**
+
+Patterns that have glob characters or regex patterns will return `true`:
+
+```js
+isGlob('!foo.js');
+isGlob('*.js');
+isGlob('**/abc.js');
+isGlob('abc/*.js');
+isGlob('abc/(aaa|bbb).js');
+isGlob('abc/[a-z].js');
+isGlob('abc/{a,b}.js');
+//=> true
+```
+
+Extglobs
+
+```js
+isGlob('abc/@(a).js');
+isGlob('abc/!(a).js');
+isGlob('abc/+(a).js');
+isGlob('abc/*(a).js');
+isGlob('abc/?(a).js');
+//=> true
+```
+
+**False**
+
+Escaped globs or extglobs return `false`:
+
+```js
+isGlob('abc/\\@(a).js');
+isGlob('abc/\\!(a).js');
+isGlob('abc/\\+(a).js');
+isGlob('abc/\\*(a).js');
+isGlob('abc/\\?(a).js');
+isGlob('\\!foo.js');
+isGlob('\\*.js');
+isGlob('\\*\\*/abc.js');
+isGlob('abc/\\*.js');
+isGlob('abc/\\(aaa|bbb).js');
+isGlob('abc/\\[a-z].js');
+isGlob('abc/\\{a,b}.js');
+//=> false
+```
+
+Patterns that do not have glob patterns return `false`:
+
+```js
+isGlob('abc.js');
+isGlob('abc/def/ghi.js');
+isGlob('foo.js');
+isGlob('abc/@.js');
+isGlob('abc/+.js');
+isGlob('abc/?.js');
+isGlob();
+isGlob(null);
+//=> false
+```
+
+Arrays are also `false` (If you want to check if an array has a glob pattern, use [has-glob](https://github.com/jonschlinkert/has-glob)):
+
+```js
+isGlob(['**/*.js']);
+isGlob(['foo.js']);
+//=> false
+```
+
+### Option strict
+
+When `options.strict === false` the behavior is less strict in determining if a pattern is a glob. Meaning that
+some patterns that would return `false` may return `true`. This is done so that matching libraries like [micromatch](https://github.com/micromatch/micromatch) have a chance at determining if the pattern is a glob or not.
+
+**True**
+
+Patterns that have glob characters or regex patterns will return `true`:
+
+```js
+isGlob('!foo.js', {strict: false});
+isGlob('*.js', {strict: false});
+isGlob('**/abc.js', {strict: false});
+isGlob('abc/*.js', {strict: false});
+isGlob('abc/(aaa|bbb).js', {strict: false});
+isGlob('abc/[a-z].js', {strict: false});
+isGlob('abc/{a,b}.js', {strict: false});
+//=> true
+```
+
+Extglobs
+
+```js
+isGlob('abc/@(a).js', {strict: false});
+isGlob('abc/!(a).js', {strict: false});
+isGlob('abc/+(a).js', {strict: false});
+isGlob('abc/*(a).js', {strict: false});
+isGlob('abc/?(a).js', {strict: false});
+//=> true
+```
+
+**False**
+
+Escaped globs or extglobs return `false`:
+
+```js
+isGlob('\\!foo.js', {strict: false});
+isGlob('\\*.js', {strict: false});
+isGlob('\\*\\*/abc.js', {strict: false});
+isGlob('abc/\\*.js', {strict: false});
+isGlob('abc/\\(aaa|bbb).js', {strict: false});
+isGlob('abc/\\[a-z].js', {strict: false});
+isGlob('abc/\\{a,b}.js', {strict: false});
+//=> false
+```
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Related projects
+
+You might also be interested in these projects:
+
+* [assemble](https://www.npmjs.com/package/assemble): Get the rocks out of your socks! Assemble makes you fast at creating web projects… [more](https://github.com/assemble/assemble) | [homepage](https://github.com/assemble/assemble "Get the rocks out of your socks! Assemble makes you fast at creating web projects. Assemble is used by thousands of projects for rapid prototyping, creating themes, scaffolds, boilerplates, e-books, UI components, API documentation, blogs, building websit")
+* [base](https://www.npmjs.com/package/base): Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks | [homepage](https://github.com/node-base/base "Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks")
+* [update](https://www.npmjs.com/package/update): Be scalable! Update is a new, open source developer framework and CLI for automating updates… [more](https://github.com/update/update) | [homepage](https://github.com/update/update "Be scalable! Update is a new, open source developer framework and CLI for automating updates of any kind in code projects.")
+* [verb](https://www.npmjs.com/package/verb): Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used… [more](https://github.com/verbose/verb) | [homepage](https://github.com/verbose/verb "Documentation generator for GitHub projects. Verb is extremely powerful, easy to use, and is used on hundreds of projects of all sizes to generate everything from API docs to readmes.")
+
+### Contributors
+
+| **Commits** | **Contributor** |  
+| --- | --- |  
+| 47 | [jonschlinkert](https://github.com/jonschlinkert) |  
+| 5  | [doowb](https://github.com/doowb) |  
+| 1  | [phated](https://github.com/phated) |  
+| 1  | [danhper](https://github.com/danhper) |  
+| 1  | [paulmillr](https://github.com/paulmillr) |  
+
+### Author
+
+**Jon Schlinkert**
+
+* [GitHub Profile](https://github.com/jonschlinkert)
+* [Twitter Profile](https://twitter.com/jonschlinkert)
+* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+
+### License
+
+Copyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on March 27, 2019._
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/is-glob/index.js b/src/main/webapp/com/css/sass/node_modules/is-glob/index.js
new file mode 100644
index 00000000..620f563e
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-glob/index.js
@@ -0,0 +1,150 @@
+/*!
+ * is-glob <https://github.com/jonschlinkert/is-glob>
+ *
+ * Copyright (c) 2014-2017, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+var isExtglob = require('is-extglob');
+var chars = { '{': '}', '(': ')', '[': ']'};
+var strictCheck = function(str) {
+  if (str[0] === '!') {
+    return true;
+  }
+  var index = 0;
+  var pipeIndex = -2;
+  var closeSquareIndex = -2;
+  var closeCurlyIndex = -2;
+  var closeParenIndex = -2;
+  var backSlashIndex = -2;
+  while (index < str.length) {
+    if (str[index] === '*') {
+      return true;
+    }
+
+    if (str[index + 1] === '?' && /[\].+)]/.test(str[index])) {
+      return true;
+    }
+
+    if (closeSquareIndex !== -1 && str[index] === '[' && str[index + 1] !== ']') {
+      if (closeSquareIndex < index) {
+        closeSquareIndex = str.indexOf(']', index);
+      }
+      if (closeSquareIndex > index) {
+        if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
+          return true;
+        }
+        backSlashIndex = str.indexOf('\\', index);
+        if (backSlashIndex === -1 || backSlashIndex > closeSquareIndex) {
+          return true;
+        }
+      }
+    }
+
+    if (closeCurlyIndex !== -1 && str[index] === '{' && str[index + 1] !== '}') {
+      closeCurlyIndex = str.indexOf('}', index);
+      if (closeCurlyIndex > index) {
+        backSlashIndex = str.indexOf('\\', index);
+        if (backSlashIndex === -1 || backSlashIndex > closeCurlyIndex) {
+          return true;
+        }
+      }
+    }
+
+    if (closeParenIndex !== -1 && str[index] === '(' && str[index + 1] === '?' && /[:!=]/.test(str[index + 2]) && str[index + 3] !== ')') {
+      closeParenIndex = str.indexOf(')', index);
+      if (closeParenIndex > index) {
+        backSlashIndex = str.indexOf('\\', index);
+        if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
+          return true;
+        }
+      }
+    }
+
+    if (pipeIndex !== -1 && str[index] === '(' && str[index + 1] !== '|') {
+      if (pipeIndex < index) {
+        pipeIndex = str.indexOf('|', index);
+      }
+      if (pipeIndex !== -1 && str[pipeIndex + 1] !== ')') {
+        closeParenIndex = str.indexOf(')', pipeIndex);
+        if (closeParenIndex > pipeIndex) {
+          backSlashIndex = str.indexOf('\\', pipeIndex);
+          if (backSlashIndex === -1 || backSlashIndex > closeParenIndex) {
+            return true;
+          }
+        }
+      }
+    }
+
+    if (str[index] === '\\') {
+      var open = str[index + 1];
+      index += 2;
+      var close = chars[open];
+
+      if (close) {
+        var n = str.indexOf(close, index);
+        if (n !== -1) {
+          index = n + 1;
+        }
+      }
+
+      if (str[index] === '!') {
+        return true;
+      }
+    } else {
+      index++;
+    }
+  }
+  return false;
+};
+
+var relaxedCheck = function(str) {
+  if (str[0] === '!') {
+    return true;
+  }
+  var index = 0;
+  while (index < str.length) {
+    if (/[*?{}()[\]]/.test(str[index])) {
+      return true;
+    }
+
+    if (str[index] === '\\') {
+      var open = str[index + 1];
+      index += 2;
+      var close = chars[open];
+
+      if (close) {
+        var n = str.indexOf(close, index);
+        if (n !== -1) {
+          index = n + 1;
+        }
+      }
+
+      if (str[index] === '!') {
+        return true;
+      }
+    } else {
+      index++;
+    }
+  }
+  return false;
+};
+
+module.exports = function isGlob(str, options) {
+  if (typeof str !== 'string' || str === '') {
+    return false;
+  }
+
+  if (isExtglob(str)) {
+    return true;
+  }
+
+  var check = strictCheck;
+
+  // optionally relax check
+  if (options && options.strict === false) {
+    check = relaxedCheck;
+  }
+
+  return check(str);
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/is-glob/package.json b/src/main/webapp/com/css/sass/node_modules/is-glob/package.json
new file mode 100644
index 00000000..858af037
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-glob/package.json
@@ -0,0 +1,81 @@
+{
+  "name": "is-glob",
+  "description": "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience.",
+  "version": "4.0.3",
+  "homepage": "https://github.com/micromatch/is-glob",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Brian Woodward (https://twitter.com/doowb)",
+    "Daniel Perez (https://tuvistavie.com)",
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)"
+  ],
+  "repository": "micromatch/is-glob",
+  "bugs": {
+    "url": "https://github.com/micromatch/is-glob/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha && node benchmark.js"
+  },
+  "dependencies": {
+    "is-extglob": "^2.1.1"
+  },
+  "devDependencies": {
+    "gulp-format-md": "^0.1.10",
+    "mocha": "^3.0.2"
+  },
+  "keywords": [
+    "bash",
+    "braces",
+    "check",
+    "exec",
+    "expression",
+    "extglob",
+    "glob",
+    "globbing",
+    "globstar",
+    "is",
+    "match",
+    "matches",
+    "pattern",
+    "regex",
+    "regular",
+    "string",
+    "test"
+  ],
+  "verb": {
+    "layout": "default",
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "related": {
+      "list": [
+        "assemble",
+        "base",
+        "update",
+        "verb"
+      ]
+    },
+    "reflinks": [
+      "assemble",
+      "bach",
+      "base",
+      "composer",
+      "gulp",
+      "has-glob",
+      "is-valid-glob",
+      "micromatch",
+      "npm",
+      "scaffold",
+      "verb",
+      "vinyl"
+    ]
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/is-number/LICENSE b/src/main/webapp/com/css/sass/node_modules/is-number/LICENSE
new file mode 100644
index 00000000..9af4a67d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-number/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-present, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/is-number/README.md b/src/main/webapp/com/css/sass/node_modules/is-number/README.md
new file mode 100644
index 00000000..eb8149e8
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-number/README.md
@@ -0,0 +1,187 @@
+# is-number [![NPM version](https://img.shields.io/npm/v/is-number.svg?style=flat)](https://www.npmjs.com/package/is-number) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-number.svg?style=flat)](https://npmjs.org/package/is-number) [![NPM total downloads](https://img.shields.io/npm/dt/is-number.svg?style=flat)](https://npmjs.org/package/is-number) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/is-number.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/is-number)
+
+> Returns true if the value is a finite number.
+
+Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save is-number
+```
+
+## Why is this needed?
+
+In JavaScript, it's not always as straightforward as it should be to reliably check if a value is a number. It's common for devs to use `+`, `-`, or `Number()` to cast a string value to a number (for example, when values are returned from user input, regex matches, parsers, etc). But there are many non-intuitive edge cases that yield unexpected results:
+
+```js
+console.log(+[]); //=> 0
+console.log(+''); //=> 0
+console.log(+'   '); //=> 0
+console.log(typeof NaN); //=> 'number'
+```
+
+This library offers a performant way to smooth out edge cases like these.
+
+## Usage
+
+```js
+const isNumber = require('is-number');
+```
+
+See the [tests](./test.js) for more examples.
+
+### true
+
+```js
+isNumber(5e3);               // true
+isNumber(0xff);              // true
+isNumber(-1.1);              // true
+isNumber(0);                 // true
+isNumber(1);                 // true
+isNumber(1.1);               // true
+isNumber(10);                // true
+isNumber(10.10);             // true
+isNumber(100);               // true
+isNumber('-1.1');            // true
+isNumber('0');               // true
+isNumber('012');             // true
+isNumber('0xff');            // true
+isNumber('1');               // true
+isNumber('1.1');             // true
+isNumber('10');              // true
+isNumber('10.10');           // true
+isNumber('100');             // true
+isNumber('5e3');             // true
+isNumber(parseInt('012'));   // true
+isNumber(parseFloat('012')); // true
+```
+
+### False
+
+Everything else is false, as you would expect:
+
+```js
+isNumber(Infinity);          // false
+isNumber(NaN);               // false
+isNumber(null);              // false
+isNumber(undefined);         // false
+isNumber('');                // false
+isNumber('   ');             // false
+isNumber('foo');             // false
+isNumber([1]);               // false
+isNumber([]);                // false
+isNumber(function () {});    // false
+isNumber({});                // false
+```
+
+## Release history
+
+### 7.0.0
+
+* Refactor. Now uses `.isFinite` if it exists.
+* Performance is about the same as v6.0 when the value is a string or number. But it's now 3x-4x faster when the value is not a string or number.
+
+### 6.0.0
+
+* Optimizations, thanks to @benaadams.
+
+### 5.0.0
+
+**Breaking changes**
+
+* removed support for `instanceof Number` and `instanceof String`
+
+## Benchmarks
+
+As with all benchmarks, take these with a grain of salt. See the [benchmarks](./benchmark/index.js) for more detail.
+
+```
+# all
+v7.0 x 413,222 ops/sec ±2.02% (86 runs sampled)
+v6.0 x 111,061 ops/sec ±1.29% (85 runs sampled)
+parseFloat x 317,596 ops/sec ±1.36% (86 runs sampled)
+fastest is 'v7.0'
+
+# string
+v7.0 x 3,054,496 ops/sec ±1.05% (89 runs sampled)
+v6.0 x 2,957,781 ops/sec ±0.98% (88 runs sampled)
+parseFloat x 3,071,060 ops/sec ±1.13% (88 runs sampled)
+fastest is 'parseFloat,v7.0'
+
+# number
+v7.0 x 3,146,895 ops/sec ±0.89% (89 runs sampled)
+v6.0 x 3,214,038 ops/sec ±1.07% (89 runs sampled)
+parseFloat x 3,077,588 ops/sec ±1.07% (87 runs sampled)
+fastest is 'v6.0'
+```
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Related projects
+
+You might also be interested in these projects:
+
+* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.")
+* [is-primitive](https://www.npmjs.com/package/is-primitive): Returns `true` if the value is a primitive.  | [homepage](https://github.com/jonschlinkert/is-primitive "Returns `true` if the value is a primitive. ")
+* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.")
+* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.")
+
+### Contributors
+
+| **Commits** | **Contributor** | 
+| --- | --- |
+| 49 | [jonschlinkert](https://github.com/jonschlinkert) |
+| 5 | [charlike-old](https://github.com/charlike-old) |
+| 1 | [benaadams](https://github.com/benaadams) |
+| 1 | [realityking](https://github.com/realityking) |
+
+### Author
+
+**Jon Schlinkert**
+
+* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+* [GitHub Profile](https://github.com/jonschlinkert)
+* [Twitter Profile](https://twitter.com/jonschlinkert)
+
+### License
+
+Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 15, 2018._
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/is-number/index.js b/src/main/webapp/com/css/sass/node_modules/is-number/index.js
new file mode 100644
index 00000000..27f19b75
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-number/index.js
@@ -0,0 +1,18 @@
+/*!
+ * is-number <https://github.com/jonschlinkert/is-number>
+ *
+ * Copyright (c) 2014-present, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+'use strict';
+
+module.exports = function(num) {
+  if (typeof num === 'number') {
+    return num - num === 0;
+  }
+  if (typeof num === 'string' && num.trim() !== '') {
+    return Number.isFinite ? Number.isFinite(+num) : isFinite(+num);
+  }
+  return false;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/is-number/package.json b/src/main/webapp/com/css/sass/node_modules/is-number/package.json
new file mode 100644
index 00000000..37150726
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/is-number/package.json
@@ -0,0 +1,82 @@
+{
+  "name": "is-number",
+  "description": "Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.",
+  "version": "7.0.0",
+  "homepage": "https://github.com/jonschlinkert/is-number",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)",
+    "Olsten Larck (https://i.am.charlike.online)",
+    "Rouven Weßling (www.rouvenwessling.de)"
+  ],
+  "repository": "jonschlinkert/is-number",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/is-number/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.12.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "devDependencies": {
+    "ansi": "^0.3.1",
+    "benchmark": "^2.1.4",
+    "gulp-format-md": "^1.0.0",
+    "mocha": "^3.5.3"
+  },
+  "keywords": [
+    "cast",
+    "check",
+    "coerce",
+    "coercion",
+    "finite",
+    "integer",
+    "is",
+    "isnan",
+    "is-nan",
+    "is-num",
+    "is-number",
+    "isnumber",
+    "isfinite",
+    "istype",
+    "kind",
+    "math",
+    "nan",
+    "num",
+    "number",
+    "numeric",
+    "parseFloat",
+    "parseInt",
+    "test",
+    "type",
+    "typeof",
+    "value"
+  ],
+  "verb": {
+    "toc": false,
+    "layout": "default",
+    "tasks": [
+      "readme"
+    ],
+    "related": {
+      "list": [
+        "is-plain-object",
+        "is-primitive",
+        "isobject",
+        "kind-of"
+      ]
+    },
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "lint": {
+      "reflinks": true
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/normalize-path/LICENSE b/src/main/webapp/com/css/sass/node_modules/normalize-path/LICENSE
new file mode 100644
index 00000000..d32ab442
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/normalize-path/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014-2018, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/normalize-path/README.md b/src/main/webapp/com/css/sass/node_modules/normalize-path/README.md
new file mode 100644
index 00000000..726d4d68
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/normalize-path/README.md
@@ -0,0 +1,127 @@
+# normalize-path [![NPM version](https://img.shields.io/npm/v/normalize-path.svg?style=flat)](https://www.npmjs.com/package/normalize-path) [![NPM monthly downloads](https://img.shields.io/npm/dm/normalize-path.svg?style=flat)](https://npmjs.org/package/normalize-path) [![NPM total downloads](https://img.shields.io/npm/dt/normalize-path.svg?style=flat)](https://npmjs.org/package/normalize-path) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/normalize-path.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/normalize-path)
+
+> Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.
+
+Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save normalize-path
+```
+
+## Usage
+
+```js
+const normalize = require('normalize-path');
+
+console.log(normalize('\\foo\\bar\\baz\\')); 
+//=> '/foo/bar/baz'
+```
+
+**win32 namespaces**
+
+```js
+console.log(normalize('\\\\?\\UNC\\Server01\\user\\docs\\Letter.txt')); 
+//=> '//?/UNC/Server01/user/docs/Letter.txt'
+
+console.log(normalize('\\\\.\\CdRomX')); 
+//=> '//./CdRomX'
+```
+
+**Consecutive slashes**
+
+Condenses multiple consecutive forward slashes (except for leading slashes in win32 namespaces) to a single slash.
+
+```js
+console.log(normalize('.//foo//bar///////baz/')); 
+//=> './foo/bar/baz'
+```
+
+### Trailing slashes
+
+By default trailing slashes are removed. Pass `false` as the last argument to disable this behavior and _**keep** trailing slashes_:
+
+```js
+console.log(normalize('foo\\bar\\baz\\', false)); //=> 'foo/bar/baz/'
+console.log(normalize('./foo/bar/baz/', false)); //=> './foo/bar/baz/'
+```
+
+## Release history
+
+### v3.0
+
+No breaking changes in this release.
+
+* a check was added to ensure that [win32 namespaces](https://msdn.microsoft.com/library/windows/desktop/aa365247(v=vs.85).aspx#namespaces) are handled properly by win32 `path.parse()` after a path has been normalized by this library.
+* a minor optimization was made to simplify how the trailing separator was handled
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Related projects
+
+Other useful path-related libraries:
+
+* [contains-path](https://www.npmjs.com/package/contains-path): Return true if a file path contains the given path. | [homepage](https://github.com/jonschlinkert/contains-path "Return true if a file path contains the given path.")
+* [is-absolute](https://www.npmjs.com/package/is-absolute): Returns true if a file path is absolute. Does not rely on the path module… [more](https://github.com/jonschlinkert/is-absolute) | [homepage](https://github.com/jonschlinkert/is-absolute "Returns true if a file path is absolute. Does not rely on the path module and can be used as a polyfill for node.js native `path.isAbolute`.")
+* [is-relative](https://www.npmjs.com/package/is-relative): Returns `true` if the path appears to be relative. | [homepage](https://github.com/jonschlinkert/is-relative "Returns `true` if the path appears to be relative.")
+* [parse-filepath](https://www.npmjs.com/package/parse-filepath): Pollyfill for node.js `path.parse`, parses a filepath into an object. | [homepage](https://github.com/jonschlinkert/parse-filepath "Pollyfill for node.js `path.parse`, parses a filepath into an object.")
+* [path-ends-with](https://www.npmjs.com/package/path-ends-with): Return `true` if a file path ends with the given string/suffix. | [homepage](https://github.com/jonschlinkert/path-ends-with "Return `true` if a file path ends with the given string/suffix.")
+* [unixify](https://www.npmjs.com/package/unixify): Convert Windows file paths to unix paths. | [homepage](https://github.com/jonschlinkert/unixify "Convert Windows file paths to unix paths.")
+
+### Contributors
+
+| **Commits** | **Contributor** | 
+| --- | --- |
+| 35 | [jonschlinkert](https://github.com/jonschlinkert) |
+| 1 | [phated](https://github.com/phated) |
+
+### Author
+
+**Jon Schlinkert**
+
+* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+* [GitHub Profile](https://github.com/jonschlinkert)
+* [Twitter Profile](https://twitter.com/jonschlinkert)
+
+### License
+
+Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on April 19, 2018._
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/normalize-path/index.js b/src/main/webapp/com/css/sass/node_modules/normalize-path/index.js
new file mode 100644
index 00000000..6fac553a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/normalize-path/index.js
@@ -0,0 +1,35 @@
+/*!
+ * normalize-path <https://github.com/jonschlinkert/normalize-path>
+ *
+ * Copyright (c) 2014-2018, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+module.exports = function(path, stripTrailing) {
+  if (typeof path !== 'string') {
+    throw new TypeError('expected path to be a string');
+  }
+
+  if (path === '\\' || path === '/') return '/';
+
+  var len = path.length;
+  if (len <= 1) return path;
+
+  // ensure that win32 namespaces has two leading slashes, so that the path is
+  // handled properly by the win32 version of path.parse() after being normalized
+  // https://msdn.microsoft.com/library/windows/desktop/aa365247(v=vs.85).aspx#namespaces
+  var prefix = '';
+  if (len > 4 && path[3] === '\\') {
+    var ch = path[2];
+    if ((ch === '?' || ch === '.') && path.slice(0, 2) === '\\\\') {
+      path = path.slice(2);
+      prefix = '//';
+    }
+  }
+
+  var segs = path.split(/[/\\]+/);
+  if (stripTrailing !== false && segs[segs.length - 1] === '') {
+    segs.pop();
+  }
+  return prefix + segs.join('/');
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/normalize-path/package.json b/src/main/webapp/com/css/sass/node_modules/normalize-path/package.json
new file mode 100644
index 00000000..ad61098a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/normalize-path/package.json
@@ -0,0 +1,77 @@
+{
+  "name": "normalize-path",
+  "description": "Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.",
+  "version": "3.0.0",
+  "homepage": "https://github.com/jonschlinkert/normalize-path",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Blaine Bublitz (https://twitter.com/BlaineBublitz)",
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)"
+  ],
+  "repository": "jonschlinkert/normalize-path",
+  "bugs": {
+    "url": "https://github.com/jonschlinkert/normalize-path/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "devDependencies": {
+    "gulp-format-md": "^1.0.0",
+    "minimist": "^1.2.0",
+    "mocha": "^3.5.3"
+  },
+  "keywords": [
+    "absolute",
+    "backslash",
+    "delimiter",
+    "file",
+    "file-path",
+    "filepath",
+    "fix",
+    "forward",
+    "fp",
+    "fs",
+    "normalize",
+    "path",
+    "relative",
+    "separator",
+    "slash",
+    "slashes",
+    "trailing",
+    "unix",
+    "urix"
+  ],
+  "verb": {
+    "toc": false,
+    "layout": "default",
+    "tasks": [
+      "readme"
+    ],
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "related": {
+      "description": "Other useful path-related libraries:",
+      "list": [
+        "contains-path",
+        "is-absolute",
+        "is-relative",
+        "parse-filepath",
+        "path-ends-with",
+        "path-ends-with",
+        "unixify"
+      ]
+    },
+    "lint": {
+      "reflinks": true
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/CHANGELOG.md b/src/main/webapp/com/css/sass/node_modules/picomatch/CHANGELOG.md
new file mode 100644
index 00000000..8ccc6c1b
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/CHANGELOG.md
@@ -0,0 +1,136 @@
+# Release history
+
+**All notable changes to this project will be documented in this file.**
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+<details>
+  <summary><strong>Guiding Principles</strong></summary>
+
+- Changelogs are for humans, not machines.
+- There should be an entry for every single version.
+- The same types of changes should be grouped.
+- Versions and sections should be linkable.
+- The latest version comes first.
+- The release date of each versions is displayed.
+- Mention whether you follow Semantic Versioning.
+
+</details>
+
+<details>
+  <summary><strong>Types of changes</strong></summary>
+
+Changelog entries are classified using the following labels _(from [keep-a-changelog](http://keepachangelog.com/)_):
+
+- `Added` for new features.
+- `Changed` for changes in existing functionality.
+- `Deprecated` for soon-to-be removed features.
+- `Removed` for now removed features.
+- `Fixed` for any bug fixes.
+- `Security` in case of vulnerabilities.
+
+</details>
+
+## 2.3.1 (2022-01-02)
+
+### Fixed
+
+* Fixes bug when a pattern containing an expression after the closing parenthesis (`/!(*.d).{ts,tsx}`) was incorrectly converted to regexp ([9f241ef](https://github.com/micromatch/picomatch/commit/9f241ef)).
+
+### Changed
+
+* Some documentation improvements ([f81d236](https://github.com/micromatch/picomatch/commit/f81d236), [421e0e7](https://github.com/micromatch/picomatch/commit/421e0e7)).
+
+## 2.3.0 (2021-05-21)
+
+### Fixed
+
+* Fixes bug where file names with two dots were not being matched consistently with negation extglobs containing a star ([56083ef](https://github.com/micromatch/picomatch/commit/56083ef))
+
+## 2.2.3 (2021-04-10)
+
+### Fixed
+
+* Do not skip pattern seperator for square brackets ([fb08a30](https://github.com/micromatch/picomatch/commit/fb08a30)).
+* Set negatedExtGlob also if it does not span the whole pattern ([032e3f5](https://github.com/micromatch/picomatch/commit/032e3f5)).
+
+## 2.2.2 (2020-03-21)
+
+### Fixed
+
+* Correctly handle parts of the pattern after parentheses in the `scan` method ([e15b920](https://github.com/micromatch/picomatch/commit/e15b920)).
+
+## 2.2.1 (2020-01-04)
+
+* Fixes [#49](https://github.com/micromatch/picomatch/issues/49), so that braces with no sets or ranges are now propertly treated as literals.
+
+## 2.2.0 (2020-01-04)
+
+* Disable fastpaths mode for the parse method ([5b8d33f](https://github.com/micromatch/picomatch/commit/5b8d33f))
+* Add `tokens`, `slashes`, and `parts` to the object returned by `picomatch.scan()`.
+
+## 2.1.0 (2019-10-31)
+
+* add benchmarks for scan ([4793b92](https://github.com/micromatch/picomatch/commit/4793b92))
+* Add eslint object-curly-spacing rule ([707c650](https://github.com/micromatch/picomatch/commit/707c650))
+* Add prefer-const eslint rule ([5c7501c](https://github.com/micromatch/picomatch/commit/5c7501c))
+* Add support for nonegate in scan API ([275c9b9](https://github.com/micromatch/picomatch/commit/275c9b9))
+* Change lets to consts. Move root import up. ([4840625](https://github.com/micromatch/picomatch/commit/4840625))
+* closes https://github.com/micromatch/picomatch/issues/21 ([766bcb0](https://github.com/micromatch/picomatch/commit/766bcb0))
+* Fix "Extglobs" table in readme ([eb19da8](https://github.com/micromatch/picomatch/commit/eb19da8))
+* fixes https://github.com/micromatch/picomatch/issues/20 ([9caca07](https://github.com/micromatch/picomatch/commit/9caca07))
+* fixes https://github.com/micromatch/picomatch/issues/26 ([fa58f45](https://github.com/micromatch/picomatch/commit/fa58f45))
+* Lint test ([d433a34](https://github.com/micromatch/picomatch/commit/d433a34))
+* lint unit tests ([0159b55](https://github.com/micromatch/picomatch/commit/0159b55))
+* Make scan work with noext ([6c02e03](https://github.com/micromatch/picomatch/commit/6c02e03))
+* minor linting ([c2a2b87](https://github.com/micromatch/picomatch/commit/c2a2b87))
+* minor parser improvements ([197671d](https://github.com/micromatch/picomatch/commit/197671d))
+* remove eslint since it... ([07876fa](https://github.com/micromatch/picomatch/commit/07876fa))
+* remove funding file ([8ebe96d](https://github.com/micromatch/picomatch/commit/8ebe96d))
+* Remove unused funks ([cbc6d54](https://github.com/micromatch/picomatch/commit/cbc6d54))
+* Run eslint during pretest, fix existing eslint findings ([0682367](https://github.com/micromatch/picomatch/commit/0682367))
+* support `noparen` in scan ([3d37569](https://github.com/micromatch/picomatch/commit/3d37569))
+* update changelog ([7b34e77](https://github.com/micromatch/picomatch/commit/7b34e77))
+* update travis ([777f038](https://github.com/micromatch/picomatch/commit/777f038))
+* Use eslint-disable-next-line instead of eslint-disable ([4e7c1fd](https://github.com/micromatch/picomatch/commit/4e7c1fd))
+
+## 2.0.7 (2019-05-14)
+
+* 2.0.7 ([9eb9a71](https://github.com/micromatch/picomatch/commit/9eb9a71))
+* supports lookbehinds ([1f63f7e](https://github.com/micromatch/picomatch/commit/1f63f7e))
+* update .verb.md file with typo change ([2741279](https://github.com/micromatch/picomatch/commit/2741279))
+* fix: typo in README ([0753e44](https://github.com/micromatch/picomatch/commit/0753e44))
+
+## 2.0.4 (2019-04-10)
+
+### Fixed
+
+- Readme link [fixed](https://github.com/micromatch/picomatch/pull/13/commits/a96ab3aa2b11b6861c23289964613d85563b05df) by @danez.
+- `options.capture` now works as expected when fastpaths are enabled. See https://github.com/micromatch/picomatch/pull/12/commits/26aefd71f1cfaf95c37f1c1fcab68a693b037304. Thanks to @DrPizza.
+
+## 2.0.0 (2019-04-10)
+
+### Added
+
+- Adds support for `options.onIgnore`. See the readme for details
+- Adds support for `options.onResult`. See the readme for details
+
+### Breaking changes
+
+- The unixify option was renamed to `windows`
+- caching and all related options and methods have been removed
+
+## 1.0.0 (2018-11-05)
+
+- adds `.onMatch` option
+- improvements to `.scan` method
+- numerous improvements and optimizations for matching and parsing
+- better windows path handling
+
+## 0.1.0 - 2017-04-13
+
+First release.
+
+
+[keep-a-changelog]: https://github.com/olivierlacan/keep-a-changelog
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/LICENSE b/src/main/webapp/com/css/sass/node_modules/picomatch/LICENSE
new file mode 100644
index 00000000..3608dca2
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2017-present, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/README.md b/src/main/webapp/com/css/sass/node_modules/picomatch/README.md
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--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/README.md
@@ -0,0 +1,708 @@
+<h1 align="center">Picomatch</h1>
+
+<p align="center">
+<a href="https://npmjs.org/package/picomatch">
+<img src="https://img.shields.io/npm/v/picomatch.svg" alt="version">
+</a>
+<a href="https://github.com/micromatch/picomatch/actions?workflow=Tests">
+<img src="https://github.com/micromatch/picomatch/workflows/Tests/badge.svg" alt="test status">
+</a>
+<a href="https://coveralls.io/github/micromatch/picomatch">
+<img src="https://img.shields.io/coveralls/github/micromatch/picomatch/master.svg" alt="coverage status">
+</a>
+<a href="https://npmjs.org/package/picomatch">
+<img src="https://img.shields.io/npm/dm/picomatch.svg" alt="downloads">
+</a>
+</p>
+
+<br>
+<br>
+
+<p align="center">
+<strong>Blazing fast and accurate glob matcher written in JavaScript.</strong></br>
+<em>No dependencies and full support for standard and extended Bash glob features, including braces, extglobs, POSIX brackets, and regular expressions.</em>
+</p>
+
+<br>
+<br>
+
+## Why picomatch?
+
+* **Lightweight** - No dependencies
+* **Minimal** - Tiny API surface. Main export is a function that takes a glob pattern and returns a matcher function.
+* **Fast** - Loads in about 2ms (that's several times faster than a [single frame of a HD movie](http://www.endmemo.com/sconvert/framespersecondframespermillisecond.php) at 60fps)
+* **Performant** - Use the returned matcher function to speed up repeat matching (like when watching files)
+* **Accurate matching** - Using wildcards (`*` and `?`), globstars (`**`) for nested directories, [advanced globbing](#advanced-globbing) with extglobs, braces, and POSIX brackets, and support for escaping special characters with `\` or quotes.
+* **Well tested** - Thousands of unit tests
+
+See the [library comparison](#library-comparisons) to other libraries.
+
+<br>
+<br>
+
+## Table of Contents
+
+<details><summary> Click to expand </summary>
+
+- [Install](#install)
+- [Usage](#usage)
+- [API](#api)
+  * [picomatch](#picomatch)
+  * [.test](#test)
+  * [.matchBase](#matchbase)
+  * [.isMatch](#ismatch)
+  * [.parse](#parse)
+  * [.scan](#scan)
+  * [.compileRe](#compilere)
+  * [.makeRe](#makere)
+  * [.toRegex](#toregex)
+- [Options](#options)
+  * [Picomatch options](#picomatch-options)
+  * [Scan Options](#scan-options)
+  * [Options Examples](#options-examples)
+- [Globbing features](#globbing-features)
+  * [Basic globbing](#basic-globbing)
+  * [Advanced globbing](#advanced-globbing)
+  * [Braces](#braces)
+  * [Matching special characters as literals](#matching-special-characters-as-literals)
+- [Library Comparisons](#library-comparisons)
+- [Benchmarks](#benchmarks)
+- [Philosophies](#philosophies)
+- [About](#about)
+  * [Author](#author)
+  * [License](#license)
+
+_(TOC generated by [verb](https://github.com/verbose/verb) using [markdown-toc](https://github.com/jonschlinkert/markdown-toc))_
+
+</details>
+
+<br>
+<br>
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+npm install --save picomatch
+```
+
+<br>
+
+## Usage
+
+The main export is a function that takes a glob pattern and an options object and returns a function for matching strings.
+
+```js
+const pm = require('picomatch');
+const isMatch = pm('*.js');
+
+console.log(isMatch('abcd')); //=> false
+console.log(isMatch('a.js')); //=> true
+console.log(isMatch('a.md')); //=> false
+console.log(isMatch('a/b.js')); //=> false
+```
+
+<br>
+
+## API
+
+### [picomatch](lib/picomatch.js#L32)
+
+Creates a matcher function from one or more glob patterns. The returned function takes a string to match as its first argument, and returns true if the string is a match. The returned matcher function also takes a boolean as the second argument that, when true, returns an object with additional information.
+
+**Params**
+
+* `globs` **{String|Array}**: One or more glob patterns.
+* `options` **{Object=}**
+* `returns` **{Function=}**: Returns a matcher function.
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+// picomatch(glob[, options]);
+
+const isMatch = picomatch('*.!(*a)');
+console.log(isMatch('a.a')); //=> false
+console.log(isMatch('a.b')); //=> true
+```
+
+### [.test](lib/picomatch.js#L117)
+
+Test `input` with the given `regex`. This is used by the main `picomatch()` function to test the input string.
+
+**Params**
+
+* `input` **{String}**: String to test.
+* `regex` **{RegExp}**
+* `returns` **{Object}**: Returns an object with matching info.
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+// picomatch.test(input, regex[, options]);
+
+console.log(picomatch.test('foo/bar', /^(?:([^/]*?)\/([^/]*?))$/));
+// { isMatch: true, match: [ 'foo/', 'foo', 'bar' ], output: 'foo/bar' }
+```
+
+### [.matchBase](lib/picomatch.js#L161)
+
+Match the basename of a filepath.
+
+**Params**
+
+* `input` **{String}**: String to test.
+* `glob` **{RegExp|String}**: Glob pattern or regex created by [.makeRe](#makeRe).
+* `returns` **{Boolean}**
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+// picomatch.matchBase(input, glob[, options]);
+console.log(picomatch.matchBase('foo/bar.js', '*.js'); // true
+```
+
+### [.isMatch](lib/picomatch.js#L183)
+
+Returns true if **any** of the given glob `patterns` match the specified `string`.
+
+**Params**
+
+* **{String|Array}**: str The string to test.
+* **{String|Array}**: patterns One or more glob patterns to use for matching.
+* **{Object}**: See available [options](#options).
+* `returns` **{Boolean}**: Returns true if any patterns match `str`
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+// picomatch.isMatch(string, patterns[, options]);
+
+console.log(picomatch.isMatch('a.a', ['b.*', '*.a'])); //=> true
+console.log(picomatch.isMatch('a.a', 'b.*')); //=> false
+```
+
+### [.parse](lib/picomatch.js#L199)
+
+Parse a glob pattern to create the source string for a regular expression.
+
+**Params**
+
+* `pattern` **{String}**
+* `options` **{Object}**
+* `returns` **{Object}**: Returns an object with useful properties and output to be used as a regex source string.
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+const result = picomatch.parse(pattern[, options]);
+```
+
+### [.scan](lib/picomatch.js#L231)
+
+Scan a glob pattern to separate the pattern into segments.
+
+**Params**
+
+* `input` **{String}**: Glob pattern to scan.
+* `options` **{Object}**
+* `returns` **{Object}**: Returns an object with
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+// picomatch.scan(input[, options]);
+
+const result = picomatch.scan('!./foo/*.js');
+console.log(result);
+{ prefix: '!./',
+  input: '!./foo/*.js',
+  start: 3,
+  base: 'foo',
+  glob: '*.js',
+  isBrace: false,
+  isBracket: false,
+  isGlob: true,
+  isExtglob: false,
+  isGlobstar: false,
+  negated: true }
+```
+
+### [.compileRe](lib/picomatch.js#L245)
+
+Compile a regular expression from the `state` object returned by the
+[parse()](#parse) method.
+
+**Params**
+
+* `state` **{Object}**
+* `options` **{Object}**
+* `returnOutput` **{Boolean}**: Intended for implementors, this argument allows you to return the raw output from the parser.
+* `returnState` **{Boolean}**: Adds the state to a `state` property on the returned regex. Useful for implementors and debugging.
+* `returns` **{RegExp}**
+
+### [.makeRe](lib/picomatch.js#L286)
+
+Create a regular expression from a parsed glob pattern.
+
+**Params**
+
+* `state` **{String}**: The object returned from the `.parse` method.
+* `options` **{Object}**
+* `returnOutput` **{Boolean}**: Implementors may use this argument to return the compiled output, instead of a regular expression. This is not exposed on the options to prevent end-users from mutating the result.
+* `returnState` **{Boolean}**: Implementors may use this argument to return the state from the parsed glob with the returned regular expression.
+* `returns` **{RegExp}**: Returns a regex created from the given pattern.
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+const state = picomatch.parse('*.js');
+// picomatch.compileRe(state[, options]);
+
+console.log(picomatch.compileRe(state));
+//=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
+```
+
+### [.toRegex](lib/picomatch.js#L321)
+
+Create a regular expression from the given regex source string.
+
+**Params**
+
+* `source` **{String}**: Regular expression source string.
+* `options` **{Object}**
+* `returns` **{RegExp}**
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+// picomatch.toRegex(source[, options]);
+
+const { output } = picomatch.parse('*.js');
+console.log(picomatch.toRegex(output));
+//=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
+```
+
+<br>
+
+## Options
+
+### Picomatch options
+
+The following options may be used with the main `picomatch()` function or any of the methods on the picomatch API.
+
+| **Option** | **Type** | **Default value** | **Description** |
+| --- | --- | --- | --- |
+| `basename`            | `boolean`      | `false`     | If set, then patterns without slashes will be matched against the basename of the path if it contains slashes.  For example, `a?b` would match the path `/xyz/123/acb`, but not `/xyz/acb/123`. |
+| `bash`                | `boolean`      | `false`     | Follow bash matching rules more strictly - disallows backslashes as escape characters, and treats single stars as globstars (`**`). |
+| `capture`             | `boolean`      | `undefined` | Return regex matches in supporting methods. |
+| `contains`            | `boolean`      | `undefined` | Allows glob to match any part of the given string(s). |
+| `cwd`                 | `string`       | `process.cwd()` | Current working directory. Used by `picomatch.split()` |
+| `debug`               | `boolean`      | `undefined` | Debug regular expressions when an error is thrown. |
+| `dot`                 | `boolean`      | `false`     | Enable dotfile matching. By default, dotfiles are ignored unless a `.` is explicitly defined in the pattern, or `options.dot` is true |
+| `expandRange`         | `function`     | `undefined` | Custom function for expanding ranges in brace patterns, such as `{a..z}`. The function receives the range values as two arguments, and it must return a string to be used in the generated regex. It's recommended that returned strings be wrapped in parentheses. |
+| `failglob`            | `boolean`      | `false`     | Throws an error if no matches are found. Based on the bash option of the same name. |
+| `fastpaths`           | `boolean`      | `true`      | To speed up processing, full parsing is skipped for a handful common glob patterns. Disable this behavior by setting this option to `false`. |
+| `flags`               | `string`      | `undefined` | Regex flags to use in the generated regex. If defined, the `nocase` option will be overridden. |
+| [format](#optionsformat) | `function` | `undefined` | Custom function for formatting the returned string. This is useful for removing leading slashes, converting Windows paths to Posix paths, etc. |
+| `ignore`              | `array\|string` | `undefined` | One or more glob patterns for excluding strings that should not be matched from the result. |
+| `keepQuotes`          | `boolean`      | `false`     | Retain quotes in the generated regex, since quotes may also be used as an alternative to backslashes.  |
+| `literalBrackets`     | `boolean`      | `undefined` | When `true`, brackets in the glob pattern will be escaped so that only literal brackets will be matched. |
+| `matchBase`           | `boolean`      | `false`     | Alias for `basename` |
+| `maxLength`           | `boolean`      | `65536`     | Limit the max length of the input string. An error is thrown if the input string is longer than this value. |
+| `nobrace`             | `boolean`      | `false`     | Disable brace matching, so that `{a,b}` and `{1..3}` would be treated as literal characters. |
+| `nobracket`           | `boolean`      | `undefined` | Disable matching with regex brackets. |
+| `nocase`              | `boolean`      | `false`     | Make matching case-insensitive. Equivalent to the regex `i` flag. Note that this option is overridden by the `flags` option. |
+| `nodupes`             | `boolean`      | `true`      | Deprecated, use `nounique` instead. This option will be removed in a future major release. By default duplicates are removed. Disable uniquification by setting this option to false. |
+| `noext`               | `boolean`      | `false`     | Alias for `noextglob` |
+| `noextglob`           | `boolean`      | `false`     | Disable support for matching with extglobs (like `+(a\|b)`) |
+| `noglobstar`          | `boolean`      | `false`     | Disable support for matching nested directories with globstars (`**`) |
+| `nonegate`            | `boolean`      | `false`     | Disable support for negating with leading `!` |
+| `noquantifiers`       | `boolean`      | `false`     | Disable support for regex quantifiers (like `a{1,2}`) and treat them as brace patterns to be expanded. |
+| [onIgnore](#optionsonIgnore) | `function` | `undefined` | Function to be called on ignored items. |
+| [onMatch](#optionsonMatch) | `function` | `undefined` | Function to be called on matched items. |
+| [onResult](#optionsonResult) | `function` | `undefined` | Function to be called on all items, regardless of whether or not they are matched or ignored. |
+| `posix`               | `boolean`      | `false`     | Support POSIX character classes ("posix brackets"). |
+| `posixSlashes`        | `boolean`      | `undefined` | Convert all slashes in file paths to forward slashes. This does not convert slashes in the glob pattern itself |
+| `prepend`             | `boolean`      | `undefined` | String to prepend to the generated regex used for matching. |
+| `regex`               | `boolean`      | `false`     | Use regular expression rules for `+` (instead of matching literal `+`), and for stars that follow closing parentheses or brackets (as in `)*` and `]*`). |
+| `strictBrackets`      | `boolean`      | `undefined` | Throw an error if brackets, braces, or parens are imbalanced. |
+| `strictSlashes`       | `boolean`      | `undefined` | When true, picomatch won't match trailing slashes with single stars. |
+| `unescape`            | `boolean`      | `undefined` | Remove backslashes preceding escaped characters in the glob pattern. By default, backslashes are retained. |
+| `unixify`             | `boolean`      | `undefined` | Alias for `posixSlashes`, for backwards compatibility. |
+
+picomatch has automatic detection for regex positive and negative lookbehinds. If the pattern contains a negative lookbehind, you must be using Node.js >= 8.10 or else picomatch will throw an error.
+
+### Scan Options
+
+In addition to the main [picomatch options](#picomatch-options), the following options may also be used with the [.scan](#scan) method.
+
+| **Option** | **Type** | **Default value** | **Description** |
+| --- | --- | --- | --- |
+| `tokens` | `boolean` | `false` | When `true`, the returned object will include an array of tokens (objects), representing each path "segment" in the scanned glob pattern |
+| `parts` | `boolean` | `false` | When `true`, the returned object will include an array of strings representing each path "segment" in the scanned glob pattern. This is automatically enabled when `options.tokens` is true |
+
+**Example**
+
+```js
+const picomatch = require('picomatch');
+const result = picomatch.scan('!./foo/*.js', { tokens: true });
+console.log(result);
+// {
+//   prefix: '!./',
+//   input: '!./foo/*.js',
+//   start: 3,
+//   base: 'foo',
+//   glob: '*.js',
+//   isBrace: false,
+//   isBracket: false,
+//   isGlob: true,
+//   isExtglob: false,
+//   isGlobstar: false,
+//   negated: true,
+//   maxDepth: 2,
+//   tokens: [
+//     { value: '!./', depth: 0, isGlob: false, negated: true, isPrefix: true },
+//     { value: 'foo', depth: 1, isGlob: false },
+//     { value: '*.js', depth: 1, isGlob: true }
+//   ],
+//   slashes: [ 2, 6 ],
+//   parts: [ 'foo', '*.js' ]
+// }
+```
+
+<br>
+
+### Options Examples
+
+#### options.expandRange
+
+**Type**: `function`
+
+**Default**: `undefined`
+
+Custom function for expanding ranges in brace patterns. The [fill-range](https://github.com/jonschlinkert/fill-range) library is ideal for this purpose, or you can use custom code to do whatever you need.
+
+**Example**
+
+The following example shows how to create a glob that matches a folder
+
+```js
+const fill = require('fill-range');
+const regex = pm.makeRe('foo/{01..25}/bar', {
+  expandRange(a, b) {
+    return `(${fill(a, b, { toRegex: true })})`;
+  }
+});
+
+console.log(regex);
+//=> /^(?:foo\/((?:0[1-9]|1[0-9]|2[0-5]))\/bar)$/
+
+console.log(regex.test('foo/00/bar'))  // false
+console.log(regex.test('foo/01/bar'))  // true
+console.log(regex.test('foo/10/bar')) // true
+console.log(regex.test('foo/22/bar')) // true
+console.log(regex.test('foo/25/bar')) // true
+console.log(regex.test('foo/26/bar')) // false
+```
+
+#### options.format
+
+**Type**: `function`
+
+**Default**: `undefined`
+
+Custom function for formatting strings before they're matched.
+
+**Example**
+
+```js
+// strip leading './' from strings
+const format = str => str.replace(/^\.\//, '');
+const isMatch = picomatch('foo/*.js', { format });
+console.log(isMatch('./foo/bar.js')); //=> true
+```
+
+#### options.onMatch
+
+```js
+const onMatch = ({ glob, regex, input, output }) => {
+  console.log({ glob, regex, input, output });
+};
+
+const isMatch = picomatch('*', { onMatch });
+isMatch('foo');
+isMatch('bar');
+isMatch('baz');
+```
+
+#### options.onIgnore
+
+```js
+const onIgnore = ({ glob, regex, input, output }) => {
+  console.log({ glob, regex, input, output });
+};
+
+const isMatch = picomatch('*', { onIgnore, ignore: 'f*' });
+isMatch('foo');
+isMatch('bar');
+isMatch('baz');
+```
+
+#### options.onResult
+
+```js
+const onResult = ({ glob, regex, input, output }) => {
+  console.log({ glob, regex, input, output });
+};
+
+const isMatch = picomatch('*', { onResult, ignore: 'f*' });
+isMatch('foo');
+isMatch('bar');
+isMatch('baz');
+```
+
+<br>
+<br>
+
+## Globbing features
+
+* [Basic globbing](#basic-globbing) (Wildcard matching)
+* [Advanced globbing](#advanced-globbing) (extglobs, posix brackets, brace matching)
+
+### Basic globbing
+
+| **Character** | **Description** |
+| --- | --- |
+| `*` | Matches any character zero or more times, excluding path separators. Does _not match_ path separators or hidden files or directories ("dotfiles"), unless explicitly enabled by setting the `dot` option to `true`. |
+| `**` | Matches any character zero or more times, including path separators. Note that `**` will only match path separators (`/`, and `\\` on Windows) when they are the only characters in a path segment. Thus, `foo**/bar` is equivalent to `foo*/bar`, and `foo/a**b/bar` is equivalent to `foo/a*b/bar`, and _more than two_ consecutive stars in a glob path segment are regarded as _a single star_. Thus, `foo/***/bar` is equivalent to `foo/*/bar`. |
+| `?` | Matches any character excluding path separators one time. Does _not match_ path separators or leading dots.  |
+| `[abc]` | Matches any characters inside the brackets. For example, `[abc]` would match the characters `a`, `b` or `c`, and nothing else. |
+
+#### Matching behavior vs. Bash
+
+Picomatch's matching features and expected results in unit tests are based on Bash's unit tests and the Bash 4.3 specification, with the following exceptions:
+
+* Bash will match `foo/bar/baz` with `*`. Picomatch only matches nested directories with `**`.
+* Bash greedily matches with negated extglobs. For example, Bash 4.3 says that `!(foo)*` should match `foo` and `foobar`, since the trailing `*` bracktracks to match the preceding pattern. This is very memory-inefficient, and IMHO, also incorrect. Picomatch would return `false` for both `foo` and `foobar`.
+
+<br>
+
+### Advanced globbing
+
+* [extglobs](#extglobs)
+* [POSIX brackets](#posix-brackets)
+* [Braces](#brace-expansion)
+
+#### Extglobs
+
+| **Pattern** | **Description** |
+| --- | --- |
+| `@(pattern)` | Match _only one_ consecutive occurrence of `pattern` |
+| `*(pattern)` | Match _zero or more_ consecutive occurrences of `pattern` |
+| `+(pattern)` | Match _one or more_ consecutive occurrences of `pattern` |
+| `?(pattern)` | Match _zero or **one**_ consecutive occurrences of `pattern` |
+| `!(pattern)` | Match _anything but_ `pattern` |
+
+**Examples**
+
+```js
+const pm = require('picomatch');
+
+// *(pattern) matches ZERO or more of "pattern"
+console.log(pm.isMatch('a', 'a*(z)')); // true
+console.log(pm.isMatch('az', 'a*(z)')); // true
+console.log(pm.isMatch('azzz', 'a*(z)')); // true
+
+// +(pattern) matches ONE or more of "pattern"
+console.log(pm.isMatch('a', 'a*(z)')); // true
+console.log(pm.isMatch('az', 'a*(z)')); // true
+console.log(pm.isMatch('azzz', 'a*(z)')); // true
+
+// supports multiple extglobs
+console.log(pm.isMatch('foo.bar', '!(foo).!(bar)')); // false
+
+// supports nested extglobs
+console.log(pm.isMatch('foo.bar', '!(!(foo)).!(!(bar))')); // true
+```
+
+#### POSIX brackets
+
+POSIX classes are disabled by default. Enable this feature by setting the `posix` option to true.
+
+**Enable POSIX bracket support**
+
+```js
+console.log(pm.makeRe('[[:word:]]+', { posix: true }));
+//=> /^(?:(?=.)[A-Za-z0-9_]+\/?)$/
+```
+
+**Supported POSIX classes**
+
+The following named POSIX bracket expressions are supported:
+
+* `[:alnum:]` - Alphanumeric characters, equ `[a-zA-Z0-9]`
+* `[:alpha:]` - Alphabetical characters, equivalent to `[a-zA-Z]`.
+* `[:ascii:]` - ASCII characters, equivalent to `[\\x00-\\x7F]`.
+* `[:blank:]` - Space and tab characters, equivalent to `[ \\t]`.
+* `[:cntrl:]` - Control characters, equivalent to `[\\x00-\\x1F\\x7F]`.
+* `[:digit:]` - Numerical digits, equivalent to `[0-9]`.
+* `[:graph:]` - Graph characters, equivalent to `[\\x21-\\x7E]`.
+* `[:lower:]` - Lowercase letters, equivalent to `[a-z]`.
+* `[:print:]` - Print characters, equivalent to `[\\x20-\\x7E ]`.
+* `[:punct:]` - Punctuation and symbols, equivalent to `[\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~]`.
+* `[:space:]` - Extended space characters, equivalent to `[ \\t\\r\\n\\v\\f]`.
+* `[:upper:]` - Uppercase letters, equivalent to `[A-Z]`.
+* `[:word:]` -  Word characters (letters, numbers and underscores), equivalent to `[A-Za-z0-9_]`.
+* `[:xdigit:]` - Hexadecimal digits, equivalent to `[A-Fa-f0-9]`.
+
+See the [Bash Reference Manual](https://www.gnu.org/software/bash/manual/html_node/Pattern-Matching.html) for more information.
+
+### Braces
+
+Picomatch does not do brace expansion. For [brace expansion](https://www.gnu.org/software/bash/manual/html_node/Brace-Expansion.html) and advanced matching with braces, use [micromatch](https://github.com/micromatch/micromatch) instead. Picomatch has very basic support for braces.
+
+### Matching special characters as literals
+
+If you wish to match the following special characters in a filepath, and you want to use these characters in your glob pattern, they must be escaped with backslashes or quotes:
+
+**Special Characters**
+
+Some characters that are used for matching in regular expressions are also regarded as valid file path characters on some platforms.
+
+To match any of the following characters as literals: `$^*+?()[]
+
+Examples:
+
+```js
+console.log(pm.makeRe('foo/bar \\(1\\)'));
+console.log(pm.makeRe('foo/bar \\(1\\)'));
+```
+
+<br>
+<br>
+
+## Library Comparisons
+
+The following table shows which features are supported by [minimatch](https://github.com/isaacs/minimatch), [micromatch](https://github.com/micromatch/micromatch), [picomatch](https://github.com/micromatch/picomatch), [nanomatch](https://github.com/micromatch/nanomatch), [extglob](https://github.com/micromatch/extglob), [braces](https://github.com/micromatch/braces), and [expand-brackets](https://github.com/micromatch/expand-brackets).
+
+| **Feature** | `minimatch` | `micromatch` | `picomatch` | `nanomatch` | `extglob` | `braces` | `expand-brackets` |
+| --- | --- | --- | --- | --- | --- | --- | --- |
+| Wildcard matching (`*?+`) | ✔ | ✔ | ✔ | ✔ | - | - | - |
+| Advancing globbing        | ✔ | ✔ | ✔ | - | - | - | - |
+| Brace _matching_          | ✔ | ✔ | ✔ | - | - | ✔ | - |
+| Brace _expansion_         | ✔ | ✔ | - | - | - | ✔ | - |
+| Extglobs                  | partial | ✔ | ✔ | - | ✔ | - | - |
+| Posix brackets            | - | ✔ | ✔ | - | - | - | ✔ |
+| Regular expression syntax | - | ✔ | ✔ | ✔ | ✔ | - | ✔ |
+| File system operations    | - | - | - | - | - | - | - |
+
+<br>
+<br>
+
+## Benchmarks
+
+Performance comparison of picomatch and minimatch.
+
+```
+# .makeRe star
+  picomatch x 1,993,050 ops/sec ±0.51% (91 runs sampled)
+  minimatch x 627,206 ops/sec ±1.96% (87 runs sampled))
+
+# .makeRe star; dot=true
+  picomatch x 1,436,640 ops/sec ±0.62% (91 runs sampled)
+  minimatch x 525,876 ops/sec ±0.60% (88 runs sampled)
+
+# .makeRe globstar
+  picomatch x 1,592,742 ops/sec ±0.42% (90 runs sampled)
+  minimatch x 962,043 ops/sec ±1.76% (91 runs sampled)d)
+
+# .makeRe globstars
+  picomatch x 1,615,199 ops/sec ±0.35% (94 runs sampled)
+  minimatch x 477,179 ops/sec ±1.33% (91 runs sampled)
+
+# .makeRe with leading star
+  picomatch x 1,220,856 ops/sec ±0.40% (92 runs sampled)
+  minimatch x 453,564 ops/sec ±1.43% (94 runs sampled)
+
+# .makeRe - basic braces
+  picomatch x 392,067 ops/sec ±0.70% (90 runs sampled)
+  minimatch x 99,532 ops/sec ±2.03% (87 runs sampled))
+```
+
+<br>
+<br>
+
+## Philosophies
+
+The goal of this library is to be blazing fast, without compromising on accuracy.
+
+**Accuracy**
+
+The number one of goal of this library is accuracy. However, it's not unusual for different glob implementations to have different rules for matching behavior, even with simple wildcard matching. It gets increasingly more complicated when combinations of different features are combined, like when extglobs are combined with globstars, braces, slashes, and so on: `!(**/{a,b,*/c})`.
+
+Thus, given that there is no canonical glob specification to use as a single source of truth when differences of opinion arise regarding behavior, sometimes we have to implement our best judgement and rely on feedback from users to make improvements.
+
+**Performance**
+
+Although this library performs well in benchmarks, and in most cases it's faster than other popular libraries we benchmarked against, we will always choose accuracy over performance. It's not helpful to anyone if our library is faster at returning the wrong answer.
+
+<br>
+<br>
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+Please read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards.
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Author
+
+**Jon Schlinkert**
+
+* [GitHub Profile](https://github.com/jonschlinkert)
+* [Twitter Profile](https://twitter.com/jonschlinkert)
+* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+
+### License
+
+Copyright © 2017-present, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/index.js b/src/main/webapp/com/css/sass/node_modules/picomatch/index.js
new file mode 100644
index 00000000..d2f2bc59
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/index.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require('./lib/picomatch');
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/lib/constants.js b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/constants.js
new file mode 100644
index 00000000..a62ef387
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/constants.js
@@ -0,0 +1,179 @@
+'use strict';
+
+const path = require('path');
+const WIN_SLASH = '\\\\/';
+const WIN_NO_SLASH = `[^${WIN_SLASH}]`;
+
+/**
+ * Posix glob regex
+ */
+
+const DOT_LITERAL = '\\.';
+const PLUS_LITERAL = '\\+';
+const QMARK_LITERAL = '\\?';
+const SLASH_LITERAL = '\\/';
+const ONE_CHAR = '(?=.)';
+const QMARK = '[^/]';
+const END_ANCHOR = `(?:${SLASH_LITERAL}|$)`;
+const START_ANCHOR = `(?:^|${SLASH_LITERAL})`;
+const DOTS_SLASH = `${DOT_LITERAL}{1,2}${END_ANCHOR}`;
+const NO_DOT = `(?!${DOT_LITERAL})`;
+const NO_DOTS = `(?!${START_ANCHOR}${DOTS_SLASH})`;
+const NO_DOT_SLASH = `(?!${DOT_LITERAL}{0,1}${END_ANCHOR})`;
+const NO_DOTS_SLASH = `(?!${DOTS_SLASH})`;
+const QMARK_NO_DOT = `[^.${SLASH_LITERAL}]`;
+const STAR = `${QMARK}*?`;
+
+const POSIX_CHARS = {
+  DOT_LITERAL,
+  PLUS_LITERAL,
+  QMARK_LITERAL,
+  SLASH_LITERAL,
+  ONE_CHAR,
+  QMARK,
+  END_ANCHOR,
+  DOTS_SLASH,
+  NO_DOT,
+  NO_DOTS,
+  NO_DOT_SLASH,
+  NO_DOTS_SLASH,
+  QMARK_NO_DOT,
+  STAR,
+  START_ANCHOR
+};
+
+/**
+ * Windows glob regex
+ */
+
+const WINDOWS_CHARS = {
+  ...POSIX_CHARS,
+
+  SLASH_LITERAL: `[${WIN_SLASH}]`,
+  QMARK: WIN_NO_SLASH,
+  STAR: `${WIN_NO_SLASH}*?`,
+  DOTS_SLASH: `${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$)`,
+  NO_DOT: `(?!${DOT_LITERAL})`,
+  NO_DOTS: `(?!(?:^|[${WIN_SLASH}])${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$))`,
+  NO_DOT_SLASH: `(?!${DOT_LITERAL}{0,1}(?:[${WIN_SLASH}]|$))`,
+  NO_DOTS_SLASH: `(?!${DOT_LITERAL}{1,2}(?:[${WIN_SLASH}]|$))`,
+  QMARK_NO_DOT: `[^.${WIN_SLASH}]`,
+  START_ANCHOR: `(?:^|[${WIN_SLASH}])`,
+  END_ANCHOR: `(?:[${WIN_SLASH}]|$)`
+};
+
+/**
+ * POSIX Bracket Regex
+ */
+
+const POSIX_REGEX_SOURCE = {
+  alnum: 'a-zA-Z0-9',
+  alpha: 'a-zA-Z',
+  ascii: '\\x00-\\x7F',
+  blank: ' \\t',
+  cntrl: '\\x00-\\x1F\\x7F',
+  digit: '0-9',
+  graph: '\\x21-\\x7E',
+  lower: 'a-z',
+  print: '\\x20-\\x7E ',
+  punct: '\\-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
+  space: ' \\t\\r\\n\\v\\f',
+  upper: 'A-Z',
+  word: 'A-Za-z0-9_',
+  xdigit: 'A-Fa-f0-9'
+};
+
+module.exports = {
+  MAX_LENGTH: 1024 * 64,
+  POSIX_REGEX_SOURCE,
+
+  // regular expressions
+  REGEX_BACKSLASH: /\\(?![*+?^${}(|)[\]])/g,
+  REGEX_NON_SPECIAL_CHARS: /^[^@![\].,$*+?^{}()|\\/]+/,
+  REGEX_SPECIAL_CHARS: /[-*+?.^${}(|)[\]]/,
+  REGEX_SPECIAL_CHARS_BACKREF: /(\\?)((\W)(\3*))/g,
+  REGEX_SPECIAL_CHARS_GLOBAL: /([-*+?.^${}(|)[\]])/g,
+  REGEX_REMOVE_BACKSLASH: /(?:\[.*?[^\\]\]|\\(?=.))/g,
+
+  // Replace globs with equivalent patterns to reduce parsing time.
+  REPLACEMENTS: {
+    '***': '*',
+    '**/**': '**',
+    '**/**/**': '**'
+  },
+
+  // Digits
+  CHAR_0: 48, /* 0 */
+  CHAR_9: 57, /* 9 */
+
+  // Alphabet chars.
+  CHAR_UPPERCASE_A: 65, /* A */
+  CHAR_LOWERCASE_A: 97, /* a */
+  CHAR_UPPERCASE_Z: 90, /* Z */
+  CHAR_LOWERCASE_Z: 122, /* z */
+
+  CHAR_LEFT_PARENTHESES: 40, /* ( */
+  CHAR_RIGHT_PARENTHESES: 41, /* ) */
+
+  CHAR_ASTERISK: 42, /* * */
+
+  // Non-alphabetic chars.
+  CHAR_AMPERSAND: 38, /* & */
+  CHAR_AT: 64, /* @ */
+  CHAR_BACKWARD_SLASH: 92, /* \ */
+  CHAR_CARRIAGE_RETURN: 13, /* \r */
+  CHAR_CIRCUMFLEX_ACCENT: 94, /* ^ */
+  CHAR_COLON: 58, /* : */
+  CHAR_COMMA: 44, /* , */
+  CHAR_DOT: 46, /* . */
+  CHAR_DOUBLE_QUOTE: 34, /* " */
+  CHAR_EQUAL: 61, /* = */
+  CHAR_EXCLAMATION_MARK: 33, /* ! */
+  CHAR_FORM_FEED: 12, /* \f */
+  CHAR_FORWARD_SLASH: 47, /* / */
+  CHAR_GRAVE_ACCENT: 96, /* ` */
+  CHAR_HASH: 35, /* # */
+  CHAR_HYPHEN_MINUS: 45, /* - */
+  CHAR_LEFT_ANGLE_BRACKET: 60, /* < */
+  CHAR_LEFT_CURLY_BRACE: 123, /* { */
+  CHAR_LEFT_SQUARE_BRACKET: 91, /* [ */
+  CHAR_LINE_FEED: 10, /* \n */
+  CHAR_NO_BREAK_SPACE: 160, /* \u00A0 */
+  CHAR_PERCENT: 37, /* % */
+  CHAR_PLUS: 43, /* + */
+  CHAR_QUESTION_MARK: 63, /* ? */
+  CHAR_RIGHT_ANGLE_BRACKET: 62, /* > */
+  CHAR_RIGHT_CURLY_BRACE: 125, /* } */
+  CHAR_RIGHT_SQUARE_BRACKET: 93, /* ] */
+  CHAR_SEMICOLON: 59, /* ; */
+  CHAR_SINGLE_QUOTE: 39, /* ' */
+  CHAR_SPACE: 32, /*   */
+  CHAR_TAB: 9, /* \t */
+  CHAR_UNDERSCORE: 95, /* _ */
+  CHAR_VERTICAL_LINE: 124, /* | */
+  CHAR_ZERO_WIDTH_NOBREAK_SPACE: 65279, /* \uFEFF */
+
+  SEP: path.sep,
+
+  /**
+   * Create EXTGLOB_CHARS
+   */
+
+  extglobChars(chars) {
+    return {
+      '!': { type: 'negate', open: '(?:(?!(?:', close: `))${chars.STAR})` },
+      '?': { type: 'qmark', open: '(?:', close: ')?' },
+      '+': { type: 'plus', open: '(?:', close: ')+' },
+      '*': { type: 'star', open: '(?:', close: ')*' },
+      '@': { type: 'at', open: '(?:', close: ')' }
+    };
+  },
+
+  /**
+   * Create GLOB_CHARS
+   */
+
+  globChars(win32) {
+    return win32 === true ? WINDOWS_CHARS : POSIX_CHARS;
+  }
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/lib/parse.js b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/parse.js
new file mode 100644
index 00000000..58269d01
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/parse.js
@@ -0,0 +1,1091 @@
+'use strict';
+
+const constants = require('./constants');
+const utils = require('./utils');
+
+/**
+ * Constants
+ */
+
+const {
+  MAX_LENGTH,
+  POSIX_REGEX_SOURCE,
+  REGEX_NON_SPECIAL_CHARS,
+  REGEX_SPECIAL_CHARS_BACKREF,
+  REPLACEMENTS
+} = constants;
+
+/**
+ * Helpers
+ */
+
+const expandRange = (args, options) => {
+  if (typeof options.expandRange === 'function') {
+    return options.expandRange(...args, options);
+  }
+
+  args.sort();
+  const value = `[${args.join('-')}]`;
+
+  try {
+    /* eslint-disable-next-line no-new */
+    new RegExp(value);
+  } catch (ex) {
+    return args.map(v => utils.escapeRegex(v)).join('..');
+  }
+
+  return value;
+};
+
+/**
+ * Create the message for a syntax error
+ */
+
+const syntaxError = (type, char) => {
+  return `Missing ${type}: "${char}" - use "\\\\${char}" to match literal characters`;
+};
+
+/**
+ * Parse the given input string.
+ * @param {String} input
+ * @param {Object} options
+ * @return {Object}
+ */
+
+const parse = (input, options) => {
+  if (typeof input !== 'string') {
+    throw new TypeError('Expected a string');
+  }
+
+  input = REPLACEMENTS[input] || input;
+
+  const opts = { ...options };
+  const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
+
+  let len = input.length;
+  if (len > max) {
+    throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
+  }
+
+  const bos = { type: 'bos', value: '', output: opts.prepend || '' };
+  const tokens = [bos];
+
+  const capture = opts.capture ? '' : '?:';
+  const win32 = utils.isWindows(options);
+
+  // create constants based on platform, for windows or posix
+  const PLATFORM_CHARS = constants.globChars(win32);
+  const EXTGLOB_CHARS = constants.extglobChars(PLATFORM_CHARS);
+
+  const {
+    DOT_LITERAL,
+    PLUS_LITERAL,
+    SLASH_LITERAL,
+    ONE_CHAR,
+    DOTS_SLASH,
+    NO_DOT,
+    NO_DOT_SLASH,
+    NO_DOTS_SLASH,
+    QMARK,
+    QMARK_NO_DOT,
+    STAR,
+    START_ANCHOR
+  } = PLATFORM_CHARS;
+
+  const globstar = opts => {
+    return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
+  };
+
+  const nodot = opts.dot ? '' : NO_DOT;
+  const qmarkNoDot = opts.dot ? QMARK : QMARK_NO_DOT;
+  let star = opts.bash === true ? globstar(opts) : STAR;
+
+  if (opts.capture) {
+    star = `(${star})`;
+  }
+
+  // minimatch options support
+  if (typeof opts.noext === 'boolean') {
+    opts.noextglob = opts.noext;
+  }
+
+  const state = {
+    input,
+    index: -1,
+    start: 0,
+    dot: opts.dot === true,
+    consumed: '',
+    output: '',
+    prefix: '',
+    backtrack: false,
+    negated: false,
+    brackets: 0,
+    braces: 0,
+    parens: 0,
+    quotes: 0,
+    globstar: false,
+    tokens
+  };
+
+  input = utils.removePrefix(input, state);
+  len = input.length;
+
+  const extglobs = [];
+  const braces = [];
+  const stack = [];
+  let prev = bos;
+  let value;
+
+  /**
+   * Tokenizing helpers
+   */
+
+  const eos = () => state.index === len - 1;
+  const peek = state.peek = (n = 1) => input[state.index + n];
+  const advance = state.advance = () => input[++state.index] || '';
+  const remaining = () => input.slice(state.index + 1);
+  const consume = (value = '', num = 0) => {
+    state.consumed += value;
+    state.index += num;
+  };
+
+  const append = token => {
+    state.output += token.output != null ? token.output : token.value;
+    consume(token.value);
+  };
+
+  const negate = () => {
+    let count = 1;
+
+    while (peek() === '!' && (peek(2) !== '(' || peek(3) === '?')) {
+      advance();
+      state.start++;
+      count++;
+    }
+
+    if (count % 2 === 0) {
+      return false;
+    }
+
+    state.negated = true;
+    state.start++;
+    return true;
+  };
+
+  const increment = type => {
+    state[type]++;
+    stack.push(type);
+  };
+
+  const decrement = type => {
+    state[type]--;
+    stack.pop();
+  };
+
+  /**
+   * Push tokens onto the tokens array. This helper speeds up
+   * tokenizing by 1) helping us avoid backtracking as much as possible,
+   * and 2) helping us avoid creating extra tokens when consecutive
+   * characters are plain text. This improves performance and simplifies
+   * lookbehinds.
+   */
+
+  const push = tok => {
+    if (prev.type === 'globstar') {
+      const isBrace = state.braces > 0 && (tok.type === 'comma' || tok.type === 'brace');
+      const isExtglob = tok.extglob === true || (extglobs.length && (tok.type === 'pipe' || tok.type === 'paren'));
+
+      if (tok.type !== 'slash' && tok.type !== 'paren' && !isBrace && !isExtglob) {
+        state.output = state.output.slice(0, -prev.output.length);
+        prev.type = 'star';
+        prev.value = '*';
+        prev.output = star;
+        state.output += prev.output;
+      }
+    }
+
+    if (extglobs.length && tok.type !== 'paren') {
+      extglobs[extglobs.length - 1].inner += tok.value;
+    }
+
+    if (tok.value || tok.output) append(tok);
+    if (prev && prev.type === 'text' && tok.type === 'text') {
+      prev.value += tok.value;
+      prev.output = (prev.output || '') + tok.value;
+      return;
+    }
+
+    tok.prev = prev;
+    tokens.push(tok);
+    prev = tok;
+  };
+
+  const extglobOpen = (type, value) => {
+    const token = { ...EXTGLOB_CHARS[value], conditions: 1, inner: '' };
+
+    token.prev = prev;
+    token.parens = state.parens;
+    token.output = state.output;
+    const output = (opts.capture ? '(' : '') + token.open;
+
+    increment('parens');
+    push({ type, value, output: state.output ? '' : ONE_CHAR });
+    push({ type: 'paren', extglob: true, value: advance(), output });
+    extglobs.push(token);
+  };
+
+  const extglobClose = token => {
+    let output = token.close + (opts.capture ? ')' : '');
+    let rest;
+
+    if (token.type === 'negate') {
+      let extglobStar = star;
+
+      if (token.inner && token.inner.length > 1 && token.inner.includes('/')) {
+        extglobStar = globstar(opts);
+      }
+
+      if (extglobStar !== star || eos() || /^\)+$/.test(remaining())) {
+        output = token.close = `)$))${extglobStar}`;
+      }
+
+      if (token.inner.includes('*') && (rest = remaining()) && /^\.[^\\/.]+$/.test(rest)) {
+        // Any non-magical string (`.ts`) or even nested expression (`.{ts,tsx}`) can follow after the closing parenthesis.
+        // In this case, we need to parse the string and use it in the output of the original pattern.
+        // Suitable patterns: `/!(*.d).ts`, `/!(*.d).{ts,tsx}`, `**/!(*-dbg).@(js)`.
+        //
+        // Disabling the `fastpaths` option due to a problem with parsing strings as `.ts` in the pattern like `**/!(*.d).ts`.
+        const expression = parse(rest, { ...options, fastpaths: false }).output;
+
+        output = token.close = `)${expression})${extglobStar})`;
+      }
+
+      if (token.prev.type === 'bos') {
+        state.negatedExtglob = true;
+      }
+    }
+
+    push({ type: 'paren', extglob: true, value, output });
+    decrement('parens');
+  };
+
+  /**
+   * Fast paths
+   */
+
+  if (opts.fastpaths !== false && !/(^[*!]|[/()[\]{}"])/.test(input)) {
+    let backslashes = false;
+
+    let output = input.replace(REGEX_SPECIAL_CHARS_BACKREF, (m, esc, chars, first, rest, index) => {
+      if (first === '\\') {
+        backslashes = true;
+        return m;
+      }
+
+      if (first === '?') {
+        if (esc) {
+          return esc + first + (rest ? QMARK.repeat(rest.length) : '');
+        }
+        if (index === 0) {
+          return qmarkNoDot + (rest ? QMARK.repeat(rest.length) : '');
+        }
+        return QMARK.repeat(chars.length);
+      }
+
+      if (first === '.') {
+        return DOT_LITERAL.repeat(chars.length);
+      }
+
+      if (first === '*') {
+        if (esc) {
+          return esc + first + (rest ? star : '');
+        }
+        return star;
+      }
+      return esc ? m : `\\${m}`;
+    });
+
+    if (backslashes === true) {
+      if (opts.unescape === true) {
+        output = output.replace(/\\/g, '');
+      } else {
+        output = output.replace(/\\+/g, m => {
+          return m.length % 2 === 0 ? '\\\\' : (m ? '\\' : '');
+        });
+      }
+    }
+
+    if (output === input && opts.contains === true) {
+      state.output = input;
+      return state;
+    }
+
+    state.output = utils.wrapOutput(output, state, options);
+    return state;
+  }
+
+  /**
+   * Tokenize input until we reach end-of-string
+   */
+
+  while (!eos()) {
+    value = advance();
+
+    if (value === '\u0000') {
+      continue;
+    }
+
+    /**
+     * Escaped characters
+     */
+
+    if (value === '\\') {
+      const next = peek();
+
+      if (next === '/' && opts.bash !== true) {
+        continue;
+      }
+
+      if (next === '.' || next === ';') {
+        continue;
+      }
+
+      if (!next) {
+        value += '\\';
+        push({ type: 'text', value });
+        continue;
+      }
+
+      // collapse slashes to reduce potential for exploits
+      const match = /^\\+/.exec(remaining());
+      let slashes = 0;
+
+      if (match && match[0].length > 2) {
+        slashes = match[0].length;
+        state.index += slashes;
+        if (slashes % 2 !== 0) {
+          value += '\\';
+        }
+      }
+
+      if (opts.unescape === true) {
+        value = advance();
+      } else {
+        value += advance();
+      }
+
+      if (state.brackets === 0) {
+        push({ type: 'text', value });
+        continue;
+      }
+    }
+
+    /**
+     * If we're inside a regex character class, continue
+     * until we reach the closing bracket.
+     */
+
+    if (state.brackets > 0 && (value !== ']' || prev.value === '[' || prev.value === '[^')) {
+      if (opts.posix !== false && value === ':') {
+        const inner = prev.value.slice(1);
+        if (inner.includes('[')) {
+          prev.posix = true;
+
+          if (inner.includes(':')) {
+            const idx = prev.value.lastIndexOf('[');
+            const pre = prev.value.slice(0, idx);
+            const rest = prev.value.slice(idx + 2);
+            const posix = POSIX_REGEX_SOURCE[rest];
+            if (posix) {
+              prev.value = pre + posix;
+              state.backtrack = true;
+              advance();
+
+              if (!bos.output && tokens.indexOf(prev) === 1) {
+                bos.output = ONE_CHAR;
+              }
+              continue;
+            }
+          }
+        }
+      }
+
+      if ((value === '[' && peek() !== ':') || (value === '-' && peek() === ']')) {
+        value = `\\${value}`;
+      }
+
+      if (value === ']' && (prev.value === '[' || prev.value === '[^')) {
+        value = `\\${value}`;
+      }
+
+      if (opts.posix === true && value === '!' && prev.value === '[') {
+        value = '^';
+      }
+
+      prev.value += value;
+      append({ value });
+      continue;
+    }
+
+    /**
+     * If we're inside a quoted string, continue
+     * until we reach the closing double quote.
+     */
+
+    if (state.quotes === 1 && value !== '"') {
+      value = utils.escapeRegex(value);
+      prev.value += value;
+      append({ value });
+      continue;
+    }
+
+    /**
+     * Double quotes
+     */
+
+    if (value === '"') {
+      state.quotes = state.quotes === 1 ? 0 : 1;
+      if (opts.keepQuotes === true) {
+        push({ type: 'text', value });
+      }
+      continue;
+    }
+
+    /**
+     * Parentheses
+     */
+
+    if (value === '(') {
+      increment('parens');
+      push({ type: 'paren', value });
+      continue;
+    }
+
+    if (value === ')') {
+      if (state.parens === 0 && opts.strictBrackets === true) {
+        throw new SyntaxError(syntaxError('opening', '('));
+      }
+
+      const extglob = extglobs[extglobs.length - 1];
+      if (extglob && state.parens === extglob.parens + 1) {
+        extglobClose(extglobs.pop());
+        continue;
+      }
+
+      push({ type: 'paren', value, output: state.parens ? ')' : '\\)' });
+      decrement('parens');
+      continue;
+    }
+
+    /**
+     * Square brackets
+     */
+
+    if (value === '[') {
+      if (opts.nobracket === true || !remaining().includes(']')) {
+        if (opts.nobracket !== true && opts.strictBrackets === true) {
+          throw new SyntaxError(syntaxError('closing', ']'));
+        }
+
+        value = `\\${value}`;
+      } else {
+        increment('brackets');
+      }
+
+      push({ type: 'bracket', value });
+      continue;
+    }
+
+    if (value === ']') {
+      if (opts.nobracket === true || (prev && prev.type === 'bracket' && prev.value.length === 1)) {
+        push({ type: 'text', value, output: `\\${value}` });
+        continue;
+      }
+
+      if (state.brackets === 0) {
+        if (opts.strictBrackets === true) {
+          throw new SyntaxError(syntaxError('opening', '['));
+        }
+
+        push({ type: 'text', value, output: `\\${value}` });
+        continue;
+      }
+
+      decrement('brackets');
+
+      const prevValue = prev.value.slice(1);
+      if (prev.posix !== true && prevValue[0] === '^' && !prevValue.includes('/')) {
+        value = `/${value}`;
+      }
+
+      prev.value += value;
+      append({ value });
+
+      // when literal brackets are explicitly disabled
+      // assume we should match with a regex character class
+      if (opts.literalBrackets === false || utils.hasRegexChars(prevValue)) {
+        continue;
+      }
+
+      const escaped = utils.escapeRegex(prev.value);
+      state.output = state.output.slice(0, -prev.value.length);
+
+      // when literal brackets are explicitly enabled
+      // assume we should escape the brackets to match literal characters
+      if (opts.literalBrackets === true) {
+        state.output += escaped;
+        prev.value = escaped;
+        continue;
+      }
+
+      // when the user specifies nothing, try to match both
+      prev.value = `(${capture}${escaped}|${prev.value})`;
+      state.output += prev.value;
+      continue;
+    }
+
+    /**
+     * Braces
+     */
+
+    if (value === '{' && opts.nobrace !== true) {
+      increment('braces');
+
+      const open = {
+        type: 'brace',
+        value,
+        output: '(',
+        outputIndex: state.output.length,
+        tokensIndex: state.tokens.length
+      };
+
+      braces.push(open);
+      push(open);
+      continue;
+    }
+
+    if (value === '}') {
+      const brace = braces[braces.length - 1];
+
+      if (opts.nobrace === true || !brace) {
+        push({ type: 'text', value, output: value });
+        continue;
+      }
+
+      let output = ')';
+
+      if (brace.dots === true) {
+        const arr = tokens.slice();
+        const range = [];
+
+        for (let i = arr.length - 1; i >= 0; i--) {
+          tokens.pop();
+          if (arr[i].type === 'brace') {
+            break;
+          }
+          if (arr[i].type !== 'dots') {
+            range.unshift(arr[i].value);
+          }
+        }
+
+        output = expandRange(range, opts);
+        state.backtrack = true;
+      }
+
+      if (brace.comma !== true && brace.dots !== true) {
+        const out = state.output.slice(0, brace.outputIndex);
+        const toks = state.tokens.slice(brace.tokensIndex);
+        brace.value = brace.output = '\\{';
+        value = output = '\\}';
+        state.output = out;
+        for (const t of toks) {
+          state.output += (t.output || t.value);
+        }
+      }
+
+      push({ type: 'brace', value, output });
+      decrement('braces');
+      braces.pop();
+      continue;
+    }
+
+    /**
+     * Pipes
+     */
+
+    if (value === '|') {
+      if (extglobs.length > 0) {
+        extglobs[extglobs.length - 1].conditions++;
+      }
+      push({ type: 'text', value });
+      continue;
+    }
+
+    /**
+     * Commas
+     */
+
+    if (value === ',') {
+      let output = value;
+
+      const brace = braces[braces.length - 1];
+      if (brace && stack[stack.length - 1] === 'braces') {
+        brace.comma = true;
+        output = '|';
+      }
+
+      push({ type: 'comma', value, output });
+      continue;
+    }
+
+    /**
+     * Slashes
+     */
+
+    if (value === '/') {
+      // if the beginning of the glob is "./", advance the start
+      // to the current index, and don't add the "./" characters
+      // to the state. This greatly simplifies lookbehinds when
+      // checking for BOS characters like "!" and "." (not "./")
+      if (prev.type === 'dot' && state.index === state.start + 1) {
+        state.start = state.index + 1;
+        state.consumed = '';
+        state.output = '';
+        tokens.pop();
+        prev = bos; // reset "prev" to the first token
+        continue;
+      }
+
+      push({ type: 'slash', value, output: SLASH_LITERAL });
+      continue;
+    }
+
+    /**
+     * Dots
+     */
+
+    if (value === '.') {
+      if (state.braces > 0 && prev.type === 'dot') {
+        if (prev.value === '.') prev.output = DOT_LITERAL;
+        const brace = braces[braces.length - 1];
+        prev.type = 'dots';
+        prev.output += value;
+        prev.value += value;
+        brace.dots = true;
+        continue;
+      }
+
+      if ((state.braces + state.parens) === 0 && prev.type !== 'bos' && prev.type !== 'slash') {
+        push({ type: 'text', value, output: DOT_LITERAL });
+        continue;
+      }
+
+      push({ type: 'dot', value, output: DOT_LITERAL });
+      continue;
+    }
+
+    /**
+     * Question marks
+     */
+
+    if (value === '?') {
+      const isGroup = prev && prev.value === '(';
+      if (!isGroup && opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
+        extglobOpen('qmark', value);
+        continue;
+      }
+
+      if (prev && prev.type === 'paren') {
+        const next = peek();
+        let output = value;
+
+        if (next === '<' && !utils.supportsLookbehinds()) {
+          throw new Error('Node.js v10 or higher is required for regex lookbehinds');
+        }
+
+        if ((prev.value === '(' && !/[!=<:]/.test(next)) || (next === '<' && !/<([!=]|\w+>)/.test(remaining()))) {
+          output = `\\${value}`;
+        }
+
+        push({ type: 'text', value, output });
+        continue;
+      }
+
+      if (opts.dot !== true && (prev.type === 'slash' || prev.type === 'bos')) {
+        push({ type: 'qmark', value, output: QMARK_NO_DOT });
+        continue;
+      }
+
+      push({ type: 'qmark', value, output: QMARK });
+      continue;
+    }
+
+    /**
+     * Exclamation
+     */
+
+    if (value === '!') {
+      if (opts.noextglob !== true && peek() === '(') {
+        if (peek(2) !== '?' || !/[!=<:]/.test(peek(3))) {
+          extglobOpen('negate', value);
+          continue;
+        }
+      }
+
+      if (opts.nonegate !== true && state.index === 0) {
+        negate();
+        continue;
+      }
+    }
+
+    /**
+     * Plus
+     */
+
+    if (value === '+') {
+      if (opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
+        extglobOpen('plus', value);
+        continue;
+      }
+
+      if ((prev && prev.value === '(') || opts.regex === false) {
+        push({ type: 'plus', value, output: PLUS_LITERAL });
+        continue;
+      }
+
+      if ((prev && (prev.type === 'bracket' || prev.type === 'paren' || prev.type === 'brace')) || state.parens > 0) {
+        push({ type: 'plus', value });
+        continue;
+      }
+
+      push({ type: 'plus', value: PLUS_LITERAL });
+      continue;
+    }
+
+    /**
+     * Plain text
+     */
+
+    if (value === '@') {
+      if (opts.noextglob !== true && peek() === '(' && peek(2) !== '?') {
+        push({ type: 'at', extglob: true, value, output: '' });
+        continue;
+      }
+
+      push({ type: 'text', value });
+      continue;
+    }
+
+    /**
+     * Plain text
+     */
+
+    if (value !== '*') {
+      if (value === '$' || value === '^') {
+        value = `\\${value}`;
+      }
+
+      const match = REGEX_NON_SPECIAL_CHARS.exec(remaining());
+      if (match) {
+        value += match[0];
+        state.index += match[0].length;
+      }
+
+      push({ type: 'text', value });
+      continue;
+    }
+
+    /**
+     * Stars
+     */
+
+    if (prev && (prev.type === 'globstar' || prev.star === true)) {
+      prev.type = 'star';
+      prev.star = true;
+      prev.value += value;
+      prev.output = star;
+      state.backtrack = true;
+      state.globstar = true;
+      consume(value);
+      continue;
+    }
+
+    let rest = remaining();
+    if (opts.noextglob !== true && /^\([^?]/.test(rest)) {
+      extglobOpen('star', value);
+      continue;
+    }
+
+    if (prev.type === 'star') {
+      if (opts.noglobstar === true) {
+        consume(value);
+        continue;
+      }
+
+      const prior = prev.prev;
+      const before = prior.prev;
+      const isStart = prior.type === 'slash' || prior.type === 'bos';
+      const afterStar = before && (before.type === 'star' || before.type === 'globstar');
+
+      if (opts.bash === true && (!isStart || (rest[0] && rest[0] !== '/'))) {
+        push({ type: 'star', value, output: '' });
+        continue;
+      }
+
+      const isBrace = state.braces > 0 && (prior.type === 'comma' || prior.type === 'brace');
+      const isExtglob = extglobs.length && (prior.type === 'pipe' || prior.type === 'paren');
+      if (!isStart && prior.type !== 'paren' && !isBrace && !isExtglob) {
+        push({ type: 'star', value, output: '' });
+        continue;
+      }
+
+      // strip consecutive `/**/`
+      while (rest.slice(0, 3) === '/**') {
+        const after = input[state.index + 4];
+        if (after && after !== '/') {
+          break;
+        }
+        rest = rest.slice(3);
+        consume('/**', 3);
+      }
+
+      if (prior.type === 'bos' && eos()) {
+        prev.type = 'globstar';
+        prev.value += value;
+        prev.output = globstar(opts);
+        state.output = prev.output;
+        state.globstar = true;
+        consume(value);
+        continue;
+      }
+
+      if (prior.type === 'slash' && prior.prev.type !== 'bos' && !afterStar && eos()) {
+        state.output = state.output.slice(0, -(prior.output + prev.output).length);
+        prior.output = `(?:${prior.output}`;
+
+        prev.type = 'globstar';
+        prev.output = globstar(opts) + (opts.strictSlashes ? ')' : '|$)');
+        prev.value += value;
+        state.globstar = true;
+        state.output += prior.output + prev.output;
+        consume(value);
+        continue;
+      }
+
+      if (prior.type === 'slash' && prior.prev.type !== 'bos' && rest[0] === '/') {
+        const end = rest[1] !== void 0 ? '|$' : '';
+
+        state.output = state.output.slice(0, -(prior.output + prev.output).length);
+        prior.output = `(?:${prior.output}`;
+
+        prev.type = 'globstar';
+        prev.output = `${globstar(opts)}${SLASH_LITERAL}|${SLASH_LITERAL}${end})`;
+        prev.value += value;
+
+        state.output += prior.output + prev.output;
+        state.globstar = true;
+
+        consume(value + advance());
+
+        push({ type: 'slash', value: '/', output: '' });
+        continue;
+      }
+
+      if (prior.type === 'bos' && rest[0] === '/') {
+        prev.type = 'globstar';
+        prev.value += value;
+        prev.output = `(?:^|${SLASH_LITERAL}|${globstar(opts)}${SLASH_LITERAL})`;
+        state.output = prev.output;
+        state.globstar = true;
+        consume(value + advance());
+        push({ type: 'slash', value: '/', output: '' });
+        continue;
+      }
+
+      // remove single star from output
+      state.output = state.output.slice(0, -prev.output.length);
+
+      // reset previous token to globstar
+      prev.type = 'globstar';
+      prev.output = globstar(opts);
+      prev.value += value;
+
+      // reset output with globstar
+      state.output += prev.output;
+      state.globstar = true;
+      consume(value);
+      continue;
+    }
+
+    const token = { type: 'star', value, output: star };
+
+    if (opts.bash === true) {
+      token.output = '.*?';
+      if (prev.type === 'bos' || prev.type === 'slash') {
+        token.output = nodot + token.output;
+      }
+      push(token);
+      continue;
+    }
+
+    if (prev && (prev.type === 'bracket' || prev.type === 'paren') && opts.regex === true) {
+      token.output = value;
+      push(token);
+      continue;
+    }
+
+    if (state.index === state.start || prev.type === 'slash' || prev.type === 'dot') {
+      if (prev.type === 'dot') {
+        state.output += NO_DOT_SLASH;
+        prev.output += NO_DOT_SLASH;
+
+      } else if (opts.dot === true) {
+        state.output += NO_DOTS_SLASH;
+        prev.output += NO_DOTS_SLASH;
+
+      } else {
+        state.output += nodot;
+        prev.output += nodot;
+      }
+
+      if (peek() !== '*') {
+        state.output += ONE_CHAR;
+        prev.output += ONE_CHAR;
+      }
+    }
+
+    push(token);
+  }
+
+  while (state.brackets > 0) {
+    if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', ']'));
+    state.output = utils.escapeLast(state.output, '[');
+    decrement('brackets');
+  }
+
+  while (state.parens > 0) {
+    if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', ')'));
+    state.output = utils.escapeLast(state.output, '(');
+    decrement('parens');
+  }
+
+  while (state.braces > 0) {
+    if (opts.strictBrackets === true) throw new SyntaxError(syntaxError('closing', '}'));
+    state.output = utils.escapeLast(state.output, '{');
+    decrement('braces');
+  }
+
+  if (opts.strictSlashes !== true && (prev.type === 'star' || prev.type === 'bracket')) {
+    push({ type: 'maybe_slash', value: '', output: `${SLASH_LITERAL}?` });
+  }
+
+  // rebuild the output if we had to backtrack at any point
+  if (state.backtrack === true) {
+    state.output = '';
+
+    for (const token of state.tokens) {
+      state.output += token.output != null ? token.output : token.value;
+
+      if (token.suffix) {
+        state.output += token.suffix;
+      }
+    }
+  }
+
+  return state;
+};
+
+/**
+ * Fast paths for creating regular expressions for common glob patterns.
+ * This can significantly speed up processing and has very little downside
+ * impact when none of the fast paths match.
+ */
+
+parse.fastpaths = (input, options) => {
+  const opts = { ...options };
+  const max = typeof opts.maxLength === 'number' ? Math.min(MAX_LENGTH, opts.maxLength) : MAX_LENGTH;
+  const len = input.length;
+  if (len > max) {
+    throw new SyntaxError(`Input length: ${len}, exceeds maximum allowed length: ${max}`);
+  }
+
+  input = REPLACEMENTS[input] || input;
+  const win32 = utils.isWindows(options);
+
+  // create constants based on platform, for windows or posix
+  const {
+    DOT_LITERAL,
+    SLASH_LITERAL,
+    ONE_CHAR,
+    DOTS_SLASH,
+    NO_DOT,
+    NO_DOTS,
+    NO_DOTS_SLASH,
+    STAR,
+    START_ANCHOR
+  } = constants.globChars(win32);
+
+  const nodot = opts.dot ? NO_DOTS : NO_DOT;
+  const slashDot = opts.dot ? NO_DOTS_SLASH : NO_DOT;
+  const capture = opts.capture ? '' : '?:';
+  const state = { negated: false, prefix: '' };
+  let star = opts.bash === true ? '.*?' : STAR;
+
+  if (opts.capture) {
+    star = `(${star})`;
+  }
+
+  const globstar = opts => {
+    if (opts.noglobstar === true) return star;
+    return `(${capture}(?:(?!${START_ANCHOR}${opts.dot ? DOTS_SLASH : DOT_LITERAL}).)*?)`;
+  };
+
+  const create = str => {
+    switch (str) {
+      case '*':
+        return `${nodot}${ONE_CHAR}${star}`;
+
+      case '.*':
+        return `${DOT_LITERAL}${ONE_CHAR}${star}`;
+
+      case '*.*':
+        return `${nodot}${star}${DOT_LITERAL}${ONE_CHAR}${star}`;
+
+      case '*/*':
+        return `${nodot}${star}${SLASH_LITERAL}${ONE_CHAR}${slashDot}${star}`;
+
+      case '**':
+        return nodot + globstar(opts);
+
+      case '**/*':
+        return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${slashDot}${ONE_CHAR}${star}`;
+
+      case '**/*.*':
+        return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${slashDot}${star}${DOT_LITERAL}${ONE_CHAR}${star}`;
+
+      case '**/.*':
+        return `(?:${nodot}${globstar(opts)}${SLASH_LITERAL})?${DOT_LITERAL}${ONE_CHAR}${star}`;
+
+      default: {
+        const match = /^(.*?)\.(\w+)$/.exec(str);
+        if (!match) return;
+
+        const source = create(match[1]);
+        if (!source) return;
+
+        return source + DOT_LITERAL + match[2];
+      }
+    }
+  };
+
+  const output = utils.removePrefix(input, state);
+  let source = create(output);
+
+  if (source && opts.strictSlashes !== true) {
+    source += `${SLASH_LITERAL}?`;
+  }
+
+  return source;
+};
+
+module.exports = parse;
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/lib/picomatch.js b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/picomatch.js
new file mode 100644
index 00000000..782d8094
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/picomatch.js
@@ -0,0 +1,342 @@
+'use strict';
+
+const path = require('path');
+const scan = require('./scan');
+const parse = require('./parse');
+const utils = require('./utils');
+const constants = require('./constants');
+const isObject = val => val && typeof val === 'object' && !Array.isArray(val);
+
+/**
+ * Creates a matcher function from one or more glob patterns. The
+ * returned function takes a string to match as its first argument,
+ * and returns true if the string is a match. The returned matcher
+ * function also takes a boolean as the second argument that, when true,
+ * returns an object with additional information.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * // picomatch(glob[, options]);
+ *
+ * const isMatch = picomatch('*.!(*a)');
+ * console.log(isMatch('a.a')); //=> false
+ * console.log(isMatch('a.b')); //=> true
+ * ```
+ * @name picomatch
+ * @param {String|Array} `globs` One or more glob patterns.
+ * @param {Object=} `options`
+ * @return {Function=} Returns a matcher function.
+ * @api public
+ */
+
+const picomatch = (glob, options, returnState = false) => {
+  if (Array.isArray(glob)) {
+    const fns = glob.map(input => picomatch(input, options, returnState));
+    const arrayMatcher = str => {
+      for (const isMatch of fns) {
+        const state = isMatch(str);
+        if (state) return state;
+      }
+      return false;
+    };
+    return arrayMatcher;
+  }
+
+  const isState = isObject(glob) && glob.tokens && glob.input;
+
+  if (glob === '' || (typeof glob !== 'string' && !isState)) {
+    throw new TypeError('Expected pattern to be a non-empty string');
+  }
+
+  const opts = options || {};
+  const posix = utils.isWindows(options);
+  const regex = isState
+    ? picomatch.compileRe(glob, options)
+    : picomatch.makeRe(glob, options, false, true);
+
+  const state = regex.state;
+  delete regex.state;
+
+  let isIgnored = () => false;
+  if (opts.ignore) {
+    const ignoreOpts = { ...options, ignore: null, onMatch: null, onResult: null };
+    isIgnored = picomatch(opts.ignore, ignoreOpts, returnState);
+  }
+
+  const matcher = (input, returnObject = false) => {
+    const { isMatch, match, output } = picomatch.test(input, regex, options, { glob, posix });
+    const result = { glob, state, regex, posix, input, output, match, isMatch };
+
+    if (typeof opts.onResult === 'function') {
+      opts.onResult(result);
+    }
+
+    if (isMatch === false) {
+      result.isMatch = false;
+      return returnObject ? result : false;
+    }
+
+    if (isIgnored(input)) {
+      if (typeof opts.onIgnore === 'function') {
+        opts.onIgnore(result);
+      }
+      result.isMatch = false;
+      return returnObject ? result : false;
+    }
+
+    if (typeof opts.onMatch === 'function') {
+      opts.onMatch(result);
+    }
+    return returnObject ? result : true;
+  };
+
+  if (returnState) {
+    matcher.state = state;
+  }
+
+  return matcher;
+};
+
+/**
+ * Test `input` with the given `regex`. This is used by the main
+ * `picomatch()` function to test the input string.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * // picomatch.test(input, regex[, options]);
+ *
+ * console.log(picomatch.test('foo/bar', /^(?:([^/]*?)\/([^/]*?))$/));
+ * // { isMatch: true, match: [ 'foo/', 'foo', 'bar' ], output: 'foo/bar' }
+ * ```
+ * @param {String} `input` String to test.
+ * @param {RegExp} `regex`
+ * @return {Object} Returns an object with matching info.
+ * @api public
+ */
+
+picomatch.test = (input, regex, options, { glob, posix } = {}) => {
+  if (typeof input !== 'string') {
+    throw new TypeError('Expected input to be a string');
+  }
+
+  if (input === '') {
+    return { isMatch: false, output: '' };
+  }
+
+  const opts = options || {};
+  const format = opts.format || (posix ? utils.toPosixSlashes : null);
+  let match = input === glob;
+  let output = (match && format) ? format(input) : input;
+
+  if (match === false) {
+    output = format ? format(input) : input;
+    match = output === glob;
+  }
+
+  if (match === false || opts.capture === true) {
+    if (opts.matchBase === true || opts.basename === true) {
+      match = picomatch.matchBase(input, regex, options, posix);
+    } else {
+      match = regex.exec(output);
+    }
+  }
+
+  return { isMatch: Boolean(match), match, output };
+};
+
+/**
+ * Match the basename of a filepath.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * // picomatch.matchBase(input, glob[, options]);
+ * console.log(picomatch.matchBase('foo/bar.js', '*.js'); // true
+ * ```
+ * @param {String} `input` String to test.
+ * @param {RegExp|String} `glob` Glob pattern or regex created by [.makeRe](#makeRe).
+ * @return {Boolean}
+ * @api public
+ */
+
+picomatch.matchBase = (input, glob, options, posix = utils.isWindows(options)) => {
+  const regex = glob instanceof RegExp ? glob : picomatch.makeRe(glob, options);
+  return regex.test(path.basename(input));
+};
+
+/**
+ * Returns true if **any** of the given glob `patterns` match the specified `string`.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * // picomatch.isMatch(string, patterns[, options]);
+ *
+ * console.log(picomatch.isMatch('a.a', ['b.*', '*.a'])); //=> true
+ * console.log(picomatch.isMatch('a.a', 'b.*')); //=> false
+ * ```
+ * @param {String|Array} str The string to test.
+ * @param {String|Array} patterns One or more glob patterns to use for matching.
+ * @param {Object} [options] See available [options](#options).
+ * @return {Boolean} Returns true if any patterns match `str`
+ * @api public
+ */
+
+picomatch.isMatch = (str, patterns, options) => picomatch(patterns, options)(str);
+
+/**
+ * Parse a glob pattern to create the source string for a regular
+ * expression.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * const result = picomatch.parse(pattern[, options]);
+ * ```
+ * @param {String} `pattern`
+ * @param {Object} `options`
+ * @return {Object} Returns an object with useful properties and output to be used as a regex source string.
+ * @api public
+ */
+
+picomatch.parse = (pattern, options) => {
+  if (Array.isArray(pattern)) return pattern.map(p => picomatch.parse(p, options));
+  return parse(pattern, { ...options, fastpaths: false });
+};
+
+/**
+ * Scan a glob pattern to separate the pattern into segments.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * // picomatch.scan(input[, options]);
+ *
+ * const result = picomatch.scan('!./foo/*.js');
+ * console.log(result);
+ * { prefix: '!./',
+ *   input: '!./foo/*.js',
+ *   start: 3,
+ *   base: 'foo',
+ *   glob: '*.js',
+ *   isBrace: false,
+ *   isBracket: false,
+ *   isGlob: true,
+ *   isExtglob: false,
+ *   isGlobstar: false,
+ *   negated: true }
+ * ```
+ * @param {String} `input` Glob pattern to scan.
+ * @param {Object} `options`
+ * @return {Object} Returns an object with
+ * @api public
+ */
+
+picomatch.scan = (input, options) => scan(input, options);
+
+/**
+ * Compile a regular expression from the `state` object returned by the
+ * [parse()](#parse) method.
+ *
+ * @param {Object} `state`
+ * @param {Object} `options`
+ * @param {Boolean} `returnOutput` Intended for implementors, this argument allows you to return the raw output from the parser.
+ * @param {Boolean} `returnState` Adds the state to a `state` property on the returned regex. Useful for implementors and debugging.
+ * @return {RegExp}
+ * @api public
+ */
+
+picomatch.compileRe = (state, options, returnOutput = false, returnState = false) => {
+  if (returnOutput === true) {
+    return state.output;
+  }
+
+  const opts = options || {};
+  const prepend = opts.contains ? '' : '^';
+  const append = opts.contains ? '' : '$';
+
+  let source = `${prepend}(?:${state.output})${append}`;
+  if (state && state.negated === true) {
+    source = `^(?!${source}).*$`;
+  }
+
+  const regex = picomatch.toRegex(source, options);
+  if (returnState === true) {
+    regex.state = state;
+  }
+
+  return regex;
+};
+
+/**
+ * Create a regular expression from a parsed glob pattern.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * const state = picomatch.parse('*.js');
+ * // picomatch.compileRe(state[, options]);
+ *
+ * console.log(picomatch.compileRe(state));
+ * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
+ * ```
+ * @param {String} `state` The object returned from the `.parse` method.
+ * @param {Object} `options`
+ * @param {Boolean} `returnOutput` Implementors may use this argument to return the compiled output, instead of a regular expression. This is not exposed on the options to prevent end-users from mutating the result.
+ * @param {Boolean} `returnState` Implementors may use this argument to return the state from the parsed glob with the returned regular expression.
+ * @return {RegExp} Returns a regex created from the given pattern.
+ * @api public
+ */
+
+picomatch.makeRe = (input, options = {}, returnOutput = false, returnState = false) => {
+  if (!input || typeof input !== 'string') {
+    throw new TypeError('Expected a non-empty string');
+  }
+
+  let parsed = { negated: false, fastpaths: true };
+
+  if (options.fastpaths !== false && (input[0] === '.' || input[0] === '*')) {
+    parsed.output = parse.fastpaths(input, options);
+  }
+
+  if (!parsed.output) {
+    parsed = parse(input, options);
+  }
+
+  return picomatch.compileRe(parsed, options, returnOutput, returnState);
+};
+
+/**
+ * Create a regular expression from the given regex source string.
+ *
+ * ```js
+ * const picomatch = require('picomatch');
+ * // picomatch.toRegex(source[, options]);
+ *
+ * const { output } = picomatch.parse('*.js');
+ * console.log(picomatch.toRegex(output));
+ * //=> /^(?:(?!\.)(?=.)[^/]*?\.js)$/
+ * ```
+ * @param {String} `source` Regular expression source string.
+ * @param {Object} `options`
+ * @return {RegExp}
+ * @api public
+ */
+
+picomatch.toRegex = (source, options) => {
+  try {
+    const opts = options || {};
+    return new RegExp(source, opts.flags || (opts.nocase ? 'i' : ''));
+  } catch (err) {
+    if (options && options.debug === true) throw err;
+    return /$^/;
+  }
+};
+
+/**
+ * Picomatch constants.
+ * @return {Object}
+ */
+
+picomatch.constants = constants;
+
+/**
+ * Expose "picomatch"
+ */
+
+module.exports = picomatch;
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/lib/scan.js b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/scan.js
new file mode 100644
index 00000000..e59cd7a1
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/scan.js
@@ -0,0 +1,391 @@
+'use strict';
+
+const utils = require('./utils');
+const {
+  CHAR_ASTERISK,             /* * */
+  CHAR_AT,                   /* @ */
+  CHAR_BACKWARD_SLASH,       /* \ */
+  CHAR_COMMA,                /* , */
+  CHAR_DOT,                  /* . */
+  CHAR_EXCLAMATION_MARK,     /* ! */
+  CHAR_FORWARD_SLASH,        /* / */
+  CHAR_LEFT_CURLY_BRACE,     /* { */
+  CHAR_LEFT_PARENTHESES,     /* ( */
+  CHAR_LEFT_SQUARE_BRACKET,  /* [ */
+  CHAR_PLUS,                 /* + */
+  CHAR_QUESTION_MARK,        /* ? */
+  CHAR_RIGHT_CURLY_BRACE,    /* } */
+  CHAR_RIGHT_PARENTHESES,    /* ) */
+  CHAR_RIGHT_SQUARE_BRACKET  /* ] */
+} = require('./constants');
+
+const isPathSeparator = code => {
+  return code === CHAR_FORWARD_SLASH || code === CHAR_BACKWARD_SLASH;
+};
+
+const depth = token => {
+  if (token.isPrefix !== true) {
+    token.depth = token.isGlobstar ? Infinity : 1;
+  }
+};
+
+/**
+ * Quickly scans a glob pattern and returns an object with a handful of
+ * useful properties, like `isGlob`, `path` (the leading non-glob, if it exists),
+ * `glob` (the actual pattern), `negated` (true if the path starts with `!` but not
+ * with `!(`) and `negatedExtglob` (true if the path starts with `!(`).
+ *
+ * ```js
+ * const pm = require('picomatch');
+ * console.log(pm.scan('foo/bar/*.js'));
+ * { isGlob: true, input: 'foo/bar/*.js', base: 'foo/bar', glob: '*.js' }
+ * ```
+ * @param {String} `str`
+ * @param {Object} `options`
+ * @return {Object} Returns an object with tokens and regex source string.
+ * @api public
+ */
+
+const scan = (input, options) => {
+  const opts = options || {};
+
+  const length = input.length - 1;
+  const scanToEnd = opts.parts === true || opts.scanToEnd === true;
+  const slashes = [];
+  const tokens = [];
+  const parts = [];
+
+  let str = input;
+  let index = -1;
+  let start = 0;
+  let lastIndex = 0;
+  let isBrace = false;
+  let isBracket = false;
+  let isGlob = false;
+  let isExtglob = false;
+  let isGlobstar = false;
+  let braceEscaped = false;
+  let backslashes = false;
+  let negated = false;
+  let negatedExtglob = false;
+  let finished = false;
+  let braces = 0;
+  let prev;
+  let code;
+  let token = { value: '', depth: 0, isGlob: false };
+
+  const eos = () => index >= length;
+  const peek = () => str.charCodeAt(index + 1);
+  const advance = () => {
+    prev = code;
+    return str.charCodeAt(++index);
+  };
+
+  while (index < length) {
+    code = advance();
+    let next;
+
+    if (code === CHAR_BACKWARD_SLASH) {
+      backslashes = token.backslashes = true;
+      code = advance();
+
+      if (code === CHAR_LEFT_CURLY_BRACE) {
+        braceEscaped = true;
+      }
+      continue;
+    }
+
+    if (braceEscaped === true || code === CHAR_LEFT_CURLY_BRACE) {
+      braces++;
+
+      while (eos() !== true && (code = advance())) {
+        if (code === CHAR_BACKWARD_SLASH) {
+          backslashes = token.backslashes = true;
+          advance();
+          continue;
+        }
+
+        if (code === CHAR_LEFT_CURLY_BRACE) {
+          braces++;
+          continue;
+        }
+
+        if (braceEscaped !== true && code === CHAR_DOT && (code = advance()) === CHAR_DOT) {
+          isBrace = token.isBrace = true;
+          isGlob = token.isGlob = true;
+          finished = true;
+
+          if (scanToEnd === true) {
+            continue;
+          }
+
+          break;
+        }
+
+        if (braceEscaped !== true && code === CHAR_COMMA) {
+          isBrace = token.isBrace = true;
+          isGlob = token.isGlob = true;
+          finished = true;
+
+          if (scanToEnd === true) {
+            continue;
+          }
+
+          break;
+        }
+
+        if (code === CHAR_RIGHT_CURLY_BRACE) {
+          braces--;
+
+          if (braces === 0) {
+            braceEscaped = false;
+            isBrace = token.isBrace = true;
+            finished = true;
+            break;
+          }
+        }
+      }
+
+      if (scanToEnd === true) {
+        continue;
+      }
+
+      break;
+    }
+
+    if (code === CHAR_FORWARD_SLASH) {
+      slashes.push(index);
+      tokens.push(token);
+      token = { value: '', depth: 0, isGlob: false };
+
+      if (finished === true) continue;
+      if (prev === CHAR_DOT && index === (start + 1)) {
+        start += 2;
+        continue;
+      }
+
+      lastIndex = index + 1;
+      continue;
+    }
+
+    if (opts.noext !== true) {
+      const isExtglobChar = code === CHAR_PLUS
+        || code === CHAR_AT
+        || code === CHAR_ASTERISK
+        || code === CHAR_QUESTION_MARK
+        || code === CHAR_EXCLAMATION_MARK;
+
+      if (isExtglobChar === true && peek() === CHAR_LEFT_PARENTHESES) {
+        isGlob = token.isGlob = true;
+        isExtglob = token.isExtglob = true;
+        finished = true;
+        if (code === CHAR_EXCLAMATION_MARK && index === start) {
+          negatedExtglob = true;
+        }
+
+        if (scanToEnd === true) {
+          while (eos() !== true && (code = advance())) {
+            if (code === CHAR_BACKWARD_SLASH) {
+              backslashes = token.backslashes = true;
+              code = advance();
+              continue;
+            }
+
+            if (code === CHAR_RIGHT_PARENTHESES) {
+              isGlob = token.isGlob = true;
+              finished = true;
+              break;
+            }
+          }
+          continue;
+        }
+        break;
+      }
+    }
+
+    if (code === CHAR_ASTERISK) {
+      if (prev === CHAR_ASTERISK) isGlobstar = token.isGlobstar = true;
+      isGlob = token.isGlob = true;
+      finished = true;
+
+      if (scanToEnd === true) {
+        continue;
+      }
+      break;
+    }
+
+    if (code === CHAR_QUESTION_MARK) {
+      isGlob = token.isGlob = true;
+      finished = true;
+
+      if (scanToEnd === true) {
+        continue;
+      }
+      break;
+    }
+
+    if (code === CHAR_LEFT_SQUARE_BRACKET) {
+      while (eos() !== true && (next = advance())) {
+        if (next === CHAR_BACKWARD_SLASH) {
+          backslashes = token.backslashes = true;
+          advance();
+          continue;
+        }
+
+        if (next === CHAR_RIGHT_SQUARE_BRACKET) {
+          isBracket = token.isBracket = true;
+          isGlob = token.isGlob = true;
+          finished = true;
+          break;
+        }
+      }
+
+      if (scanToEnd === true) {
+        continue;
+      }
+
+      break;
+    }
+
+    if (opts.nonegate !== true && code === CHAR_EXCLAMATION_MARK && index === start) {
+      negated = token.negated = true;
+      start++;
+      continue;
+    }
+
+    if (opts.noparen !== true && code === CHAR_LEFT_PARENTHESES) {
+      isGlob = token.isGlob = true;
+
+      if (scanToEnd === true) {
+        while (eos() !== true && (code = advance())) {
+          if (code === CHAR_LEFT_PARENTHESES) {
+            backslashes = token.backslashes = true;
+            code = advance();
+            continue;
+          }
+
+          if (code === CHAR_RIGHT_PARENTHESES) {
+            finished = true;
+            break;
+          }
+        }
+        continue;
+      }
+      break;
+    }
+
+    if (isGlob === true) {
+      finished = true;
+
+      if (scanToEnd === true) {
+        continue;
+      }
+
+      break;
+    }
+  }
+
+  if (opts.noext === true) {
+    isExtglob = false;
+    isGlob = false;
+  }
+
+  let base = str;
+  let prefix = '';
+  let glob = '';
+
+  if (start > 0) {
+    prefix = str.slice(0, start);
+    str = str.slice(start);
+    lastIndex -= start;
+  }
+
+  if (base && isGlob === true && lastIndex > 0) {
+    base = str.slice(0, lastIndex);
+    glob = str.slice(lastIndex);
+  } else if (isGlob === true) {
+    base = '';
+    glob = str;
+  } else {
+    base = str;
+  }
+
+  if (base && base !== '' && base !== '/' && base !== str) {
+    if (isPathSeparator(base.charCodeAt(base.length - 1))) {
+      base = base.slice(0, -1);
+    }
+  }
+
+  if (opts.unescape === true) {
+    if (glob) glob = utils.removeBackslashes(glob);
+
+    if (base && backslashes === true) {
+      base = utils.removeBackslashes(base);
+    }
+  }
+
+  const state = {
+    prefix,
+    input,
+    start,
+    base,
+    glob,
+    isBrace,
+    isBracket,
+    isGlob,
+    isExtglob,
+    isGlobstar,
+    negated,
+    negatedExtglob
+  };
+
+  if (opts.tokens === true) {
+    state.maxDepth = 0;
+    if (!isPathSeparator(code)) {
+      tokens.push(token);
+    }
+    state.tokens = tokens;
+  }
+
+  if (opts.parts === true || opts.tokens === true) {
+    let prevIndex;
+
+    for (let idx = 0; idx < slashes.length; idx++) {
+      const n = prevIndex ? prevIndex + 1 : start;
+      const i = slashes[idx];
+      const value = input.slice(n, i);
+      if (opts.tokens) {
+        if (idx === 0 && start !== 0) {
+          tokens[idx].isPrefix = true;
+          tokens[idx].value = prefix;
+        } else {
+          tokens[idx].value = value;
+        }
+        depth(tokens[idx]);
+        state.maxDepth += tokens[idx].depth;
+      }
+      if (idx !== 0 || value !== '') {
+        parts.push(value);
+      }
+      prevIndex = i;
+    }
+
+    if (prevIndex && prevIndex + 1 < input.length) {
+      const value = input.slice(prevIndex + 1);
+      parts.push(value);
+
+      if (opts.tokens) {
+        tokens[tokens.length - 1].value = value;
+        depth(tokens[tokens.length - 1]);
+        state.maxDepth += tokens[tokens.length - 1].depth;
+      }
+    }
+
+    state.slashes = slashes;
+    state.parts = parts;
+  }
+
+  return state;
+};
+
+module.exports = scan;
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/lib/utils.js b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/utils.js
new file mode 100644
index 00000000..c3ca766a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/lib/utils.js
@@ -0,0 +1,64 @@
+'use strict';
+
+const path = require('path');
+const win32 = process.platform === 'win32';
+const {
+  REGEX_BACKSLASH,
+  REGEX_REMOVE_BACKSLASH,
+  REGEX_SPECIAL_CHARS,
+  REGEX_SPECIAL_CHARS_GLOBAL
+} = require('./constants');
+
+exports.isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
+exports.hasRegexChars = str => REGEX_SPECIAL_CHARS.test(str);
+exports.isRegexChar = str => str.length === 1 && exports.hasRegexChars(str);
+exports.escapeRegex = str => str.replace(REGEX_SPECIAL_CHARS_GLOBAL, '\\$1');
+exports.toPosixSlashes = str => str.replace(REGEX_BACKSLASH, '/');
+
+exports.removeBackslashes = str => {
+  return str.replace(REGEX_REMOVE_BACKSLASH, match => {
+    return match === '\\' ? '' : match;
+  });
+};
+
+exports.supportsLookbehinds = () => {
+  const segs = process.version.slice(1).split('.').map(Number);
+  if (segs.length === 3 && segs[0] >= 9 || (segs[0] === 8 && segs[1] >= 10)) {
+    return true;
+  }
+  return false;
+};
+
+exports.isWindows = options => {
+  if (options && typeof options.windows === 'boolean') {
+    return options.windows;
+  }
+  return win32 === true || path.sep === '\\';
+};
+
+exports.escapeLast = (input, char, lastIdx) => {
+  const idx = input.lastIndexOf(char, lastIdx);
+  if (idx === -1) return input;
+  if (input[idx - 1] === '\\') return exports.escapeLast(input, char, idx - 1);
+  return `${input.slice(0, idx)}\\${input.slice(idx)}`;
+};
+
+exports.removePrefix = (input, state = {}) => {
+  let output = input;
+  if (output.startsWith('./')) {
+    output = output.slice(2);
+    state.prefix = './';
+  }
+  return output;
+};
+
+exports.wrapOutput = (input, state = {}, options = {}) => {
+  const prepend = options.contains ? '' : '^';
+  const append = options.contains ? '' : '$';
+
+  let output = `${prepend}(?:${input})${append}`;
+  if (state.negated === true) {
+    output = `(?:^(?!${output}).*$)`;
+  }
+  return output;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/picomatch/package.json b/src/main/webapp/com/css/sass/node_modules/picomatch/package.json
new file mode 100644
index 00000000..3db22d40
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/picomatch/package.json
@@ -0,0 +1,81 @@
+{
+  "name": "picomatch",
+  "description": "Blazing fast and accurate glob matcher written in JavaScript, with no dependencies and full support for standard and extended Bash glob features, including braces, extglobs, POSIX brackets, and regular expressions.",
+  "version": "2.3.1",
+  "homepage": "https://github.com/micromatch/picomatch",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "funding": "https://github.com/sponsors/jonschlinkert",
+  "repository": "micromatch/picomatch",
+  "bugs": {
+    "url": "https://github.com/micromatch/picomatch/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js",
+    "lib"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=8.6"
+  },
+  "scripts": {
+    "lint": "eslint --cache --cache-location node_modules/.cache/.eslintcache --report-unused-disable-directives --ignore-path .gitignore .",
+    "mocha": "mocha --reporter dot",
+    "test": "npm run lint && npm run mocha",
+    "test:ci": "npm run test:cover",
+    "test:cover": "nyc npm run mocha"
+  },
+  "devDependencies": {
+    "eslint": "^6.8.0",
+    "fill-range": "^7.0.1",
+    "gulp-format-md": "^2.0.0",
+    "mocha": "^6.2.2",
+    "nyc": "^15.0.0",
+    "time-require": "github:jonschlinkert/time-require"
+  },
+  "keywords": [
+    "glob",
+    "match",
+    "picomatch"
+  ],
+  "nyc": {
+    "reporter": [
+      "html",
+      "lcov",
+      "text-summary"
+    ]
+  },
+  "verb": {
+    "toc": {
+      "render": true,
+      "method": "preWrite",
+      "maxdepth": 3
+    },
+    "layout": "empty",
+    "tasks": [
+      "readme"
+    ],
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "lint": {
+      "reflinks": true
+    },
+    "related": {
+      "list": [
+        "braces",
+        "micromatch"
+      ]
+    },
+    "reflinks": [
+      "braces",
+      "expand-brackets",
+      "extglob",
+      "fill-range",
+      "micromatch",
+      "minimatch",
+      "nanomatch",
+      "picomatch"
+    ]
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/readdirp/LICENSE b/src/main/webapp/com/css/sass/node_modules/readdirp/LICENSE
new file mode 100644
index 00000000..037cbb4e
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/readdirp/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2012-2019 Thorsten Lorenz, Paul Miller (https://paulmillr.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/readdirp/README.md b/src/main/webapp/com/css/sass/node_modules/readdirp/README.md
new file mode 100644
index 00000000..465593c9
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/readdirp/README.md
@@ -0,0 +1,122 @@
+# readdirp [![Weekly downloads](https://img.shields.io/npm/dw/readdirp.svg)](https://github.com/paulmillr/readdirp)
+
+Recursive version of [fs.readdir](https://nodejs.org/api/fs.html#fs_fs_readdir_path_options_callback). Exposes a **stream API** and a **promise API**.
+
+
+```sh
+npm install readdirp
+```
+
+```javascript
+const readdirp = require('readdirp');
+
+// Use streams to achieve small RAM & CPU footprint.
+// 1) Streams example with for-await.
+for await (const entry of readdirp('.')) {
+  const {path} = entry;
+  console.log(`${JSON.stringify({path})}`);
+}
+
+// 2) Streams example, non for-await.
+// Print out all JS files along with their size within the current folder & subfolders.
+readdirp('.', {fileFilter: '*.js', alwaysStat: true})
+  .on('data', (entry) => {
+    const {path, stats: {size}} = entry;
+    console.log(`${JSON.stringify({path, size})}`);
+  })
+  // Optionally call stream.destroy() in `warn()` in order to abort and cause 'close' to be emitted
+  .on('warn', error => console.error('non-fatal error', error))
+  .on('error', error => console.error('fatal error', error))
+  .on('end', () => console.log('done'));
+
+// 3) Promise example. More RAM and CPU than streams / for-await.
+const files = await readdirp.promise('.');
+console.log(files.map(file => file.path));
+
+// Other options.
+readdirp('test', {
+  fileFilter: '*.js',
+  directoryFilter: ['!.git', '!*modules']
+  // directoryFilter: (di) => di.basename.length === 9
+  type: 'files_directories',
+  depth: 1
+});
+```
+
+For more examples, check out `examples` directory.
+
+## API
+
+`const stream = readdirp(root[, options])` — **Stream API**
+
+- Reads given root recursively and returns a `stream` of [entry infos](#entryinfo)
+- Optionally can be used like `for await (const entry of stream)` with node.js 10+ (`asyncIterator`).
+- `on('data', (entry) => {})` [entry info](#entryinfo) for every file / dir.
+- `on('warn', (error) => {})` non-fatal `Error` that prevents a file / dir from being processed. Example: inaccessible to the user.
+- `on('error', (error) => {})` fatal `Error` which also ends the stream. Example: illegal options where passed.
+- `on('end')` — we are done. Called when all entries were found and no more will be emitted.
+- `on('close')` — stream is destroyed via `stream.destroy()`.
+  Could be useful if you want to manually abort even on a non fatal error.
+  At that point the stream is no longer `readable` and no more entries, warning or errors are emitted
+- To learn more about streams, consult the very detailed [nodejs streams documentation](https://nodejs.org/api/stream.html)
+  or the [stream-handbook](https://github.com/substack/stream-handbook)
+
+`const entries = await readdirp.promise(root[, options])` — **Promise API**. Returns a list of [entry infos](#entryinfo).
+
+First argument is awalys `root`, path in which to start reading and recursing into subdirectories.
+
+### options
+
+- `fileFilter: ["*.js"]`: filter to include or exclude files. A `Function`, Glob string or Array of glob strings.
+    - **Function**: a function that takes an entry info as a parameter and returns true to include or false to exclude the entry
+    - **Glob string**: a string (e.g., `*.js`) which is matched using [picomatch](https://github.com/micromatch/picomatch), so go there for more
+        information. Globstars (`**`) are not supported since specifying a recursive pattern for an already recursive function doesn't make sense. Negated globs (as explained in the minimatch documentation) are allowed, e.g., `!*.txt` matches everything but text files.
+    - **Array of glob strings**: either need to be all inclusive or all exclusive (negated) patterns otherwise an error is thrown.
+        `['*.json', '*.js']` includes all JavaScript and Json files.
+        `['!.git', '!node_modules']` includes all directories except the '.git' and 'node_modules'.
+    - Directories that do not pass a filter will not be recursed into.
+- `directoryFilter: ['!.git']`: filter to include/exclude directories found and to recurse into. Directories that do not pass a filter will not be recursed into.
+- `depth: 5`: depth at which to stop recursing even if more subdirectories are found
+- `type: 'files'`: determines if data events on the stream should be emitted for `'files'` (default), `'directories'`, `'files_directories'`, or `'all'`. Setting to `'all'` will also include entries for other types of file descriptors like character devices, unix sockets and named pipes.
+- `alwaysStat: false`: always return `stats` property for every file. Default is `false`, readdirp will return `Dirent` entries. Setting it to `true` can double readdir execution time - use it only when you need file `size`, `mtime` etc. Cannot be enabled on node <10.10.0.
+- `lstat: false`: include symlink entries in the stream along with files. When `true`, `fs.lstat` would be used instead of `fs.stat`
+
+### `EntryInfo`
+
+Has the following properties:
+
+- `path: 'assets/javascripts/react.js'`: path to the file/directory (relative to given root)
+- `fullPath: '/Users/dev/projects/app/assets/javascripts/react.js'`: full path to the file/directory found
+- `basename: 'react.js'`: name of the file/directory
+- `dirent: fs.Dirent`: built-in [dir entry object](https://nodejs.org/api/fs.html#fs_class_fs_dirent) - only with `alwaysStat: false`
+- `stats: fs.Stats`: built in [stat object](https://nodejs.org/api/fs.html#fs_class_fs_stats) - only with `alwaysStat: true`
+
+## Changelog
+
+- 3.5 (Oct 13, 2020) disallows recursive directory-based symlinks.
+  Before, it could have entered infinite loop.
+- 3.4 (Mar 19, 2020) adds support for directory-based symlinks.
+- 3.3 (Dec 6, 2019) stabilizes RAM consumption and enables perf management with `highWaterMark` option. Fixes race conditions related to `for-await` looping.
+- 3.2 (Oct 14, 2019) improves performance by 250% and makes streams implementation more idiomatic.
+- 3.1 (Jul 7, 2019) brings `bigint` support to `stat` output on Windows. This is backwards-incompatible for some cases. Be careful. It you use it incorrectly, you'll see "TypeError: Cannot mix BigInt and other types, use explicit conversions".
+- 3.0 brings huge performance improvements and stream backpressure support.
+- Upgrading 2.x to 3.x:
+    - Signature changed from `readdirp(options)` to `readdirp(root, options)`
+    - Replaced callback API with promise API.
+    - Renamed `entryType` option to `type`
+    - Renamed `entryType: 'both'` to `'files_directories'`
+    - `EntryInfo`
+        - Renamed `stat` to `stats`
+            - Emitted only when `alwaysStat: true`
+            - `dirent` is emitted instead of `stats` by default with `alwaysStat: false`
+        - Renamed `name` to `basename`
+        - Removed `parentDir` and `fullParentDir` properties
+- Supported node.js versions:
+    - 3.x: node 8+
+    - 2.x: node 0.6+
+
+## License
+
+Copyright (c) 2012-2019 Thorsten Lorenz, Paul Miller (<https://paulmillr.com>)
+
+MIT License, see [LICENSE](LICENSE) file.
diff --git a/src/main/webapp/com/css/sass/node_modules/readdirp/index.d.ts b/src/main/webapp/com/css/sass/node_modules/readdirp/index.d.ts
new file mode 100644
index 00000000..cbbd76ca
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/readdirp/index.d.ts
@@ -0,0 +1,43 @@
+// TypeScript Version: 3.2
+
+/// <reference types="node" lib="esnext" />
+
+import * as fs from 'fs';
+import { Readable } from 'stream';
+
+declare namespace readdir {
+  interface EntryInfo {
+    path: string;
+    fullPath: string;
+    basename: string;
+    stats?: fs.Stats;
+    dirent?: fs.Dirent;
+  }
+
+  interface ReaddirpOptions {
+    root?: string;
+    fileFilter?: string | string[] | ((entry: EntryInfo) => boolean);
+    directoryFilter?: string | string[] | ((entry: EntryInfo) => boolean);
+    type?: 'files' | 'directories' | 'files_directories' | 'all';
+    lstat?: boolean;
+    depth?: number;
+    alwaysStat?: boolean;
+  }
+
+  interface ReaddirpStream extends Readable, AsyncIterable<EntryInfo> {
+    read(): EntryInfo;
+    [Symbol.asyncIterator](): AsyncIterableIterator<EntryInfo>;
+  }
+
+  function promise(
+    root: string,
+    options?: ReaddirpOptions
+  ): Promise<EntryInfo[]>;
+}
+
+declare function readdir(
+  root: string,
+  options?: readdir.ReaddirpOptions
+): readdir.ReaddirpStream;
+
+export = readdir;
diff --git a/src/main/webapp/com/css/sass/node_modules/readdirp/index.js b/src/main/webapp/com/css/sass/node_modules/readdirp/index.js
new file mode 100644
index 00000000..cf739b2d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/readdirp/index.js
@@ -0,0 +1,287 @@
+'use strict';
+
+const fs = require('fs');
+const { Readable } = require('stream');
+const sysPath = require('path');
+const { promisify } = require('util');
+const picomatch = require('picomatch');
+
+const readdir = promisify(fs.readdir);
+const stat = promisify(fs.stat);
+const lstat = promisify(fs.lstat);
+const realpath = promisify(fs.realpath);
+
+/**
+ * @typedef {Object} EntryInfo
+ * @property {String} path
+ * @property {String} fullPath
+ * @property {fs.Stats=} stats
+ * @property {fs.Dirent=} dirent
+ * @property {String} basename
+ */
+
+const BANG = '!';
+const RECURSIVE_ERROR_CODE = 'READDIRP_RECURSIVE_ERROR';
+const NORMAL_FLOW_ERRORS = new Set(['ENOENT', 'EPERM', 'EACCES', 'ELOOP', RECURSIVE_ERROR_CODE]);
+const FILE_TYPE = 'files';
+const DIR_TYPE = 'directories';
+const FILE_DIR_TYPE = 'files_directories';
+const EVERYTHING_TYPE = 'all';
+const ALL_TYPES = [FILE_TYPE, DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE];
+
+const isNormalFlowError = error => NORMAL_FLOW_ERRORS.has(error.code);
+const [maj, min] = process.versions.node.split('.').slice(0, 2).map(n => Number.parseInt(n, 10));
+const wantBigintFsStats = process.platform === 'win32' && (maj > 10 || (maj === 10 && min >= 5));
+
+const normalizeFilter = filter => {
+  if (filter === undefined) return;
+  if (typeof filter === 'function') return filter;
+
+  if (typeof filter === 'string') {
+    const glob = picomatch(filter.trim());
+    return entry => glob(entry.basename);
+  }
+
+  if (Array.isArray(filter)) {
+    const positive = [];
+    const negative = [];
+    for (const item of filter) {
+      const trimmed = item.trim();
+      if (trimmed.charAt(0) === BANG) {
+        negative.push(picomatch(trimmed.slice(1)));
+      } else {
+        positive.push(picomatch(trimmed));
+      }
+    }
+
+    if (negative.length > 0) {
+      if (positive.length > 0) {
+        return entry =>
+          positive.some(f => f(entry.basename)) && !negative.some(f => f(entry.basename));
+      }
+      return entry => !negative.some(f => f(entry.basename));
+    }
+    return entry => positive.some(f => f(entry.basename));
+  }
+};
+
+class ReaddirpStream extends Readable {
+  static get defaultOptions() {
+    return {
+      root: '.',
+      /* eslint-disable no-unused-vars */
+      fileFilter: (path) => true,
+      directoryFilter: (path) => true,
+      /* eslint-enable no-unused-vars */
+      type: FILE_TYPE,
+      lstat: false,
+      depth: 2147483648,
+      alwaysStat: false
+    };
+  }
+
+  constructor(options = {}) {
+    super({
+      objectMode: true,
+      autoDestroy: true,
+      highWaterMark: options.highWaterMark || 4096
+    });
+    const opts = { ...ReaddirpStream.defaultOptions, ...options };
+    const { root, type } = opts;
+
+    this._fileFilter = normalizeFilter(opts.fileFilter);
+    this._directoryFilter = normalizeFilter(opts.directoryFilter);
+
+    const statMethod = opts.lstat ? lstat : stat;
+    // Use bigint stats if it's windows and stat() supports options (node 10+).
+    if (wantBigintFsStats) {
+      this._stat = path => statMethod(path, { bigint: true });
+    } else {
+      this._stat = statMethod;
+    }
+
+    this._maxDepth = opts.depth;
+    this._wantsDir = [DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
+    this._wantsFile = [FILE_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type);
+    this._wantsEverything = type === EVERYTHING_TYPE;
+    this._root = sysPath.resolve(root);
+    this._isDirent = ('Dirent' in fs) && !opts.alwaysStat;
+    this._statsProp = this._isDirent ? 'dirent' : 'stats';
+    this._rdOptions = { encoding: 'utf8', withFileTypes: this._isDirent };
+
+    // Launch stream with one parent, the root dir.
+    this.parents = [this._exploreDir(root, 1)];
+    this.reading = false;
+    this.parent = undefined;
+  }
+
+  async _read(batch) {
+    if (this.reading) return;
+    this.reading = true;
+
+    try {
+      while (!this.destroyed && batch > 0) {
+        const { path, depth, files = [] } = this.parent || {};
+
+        if (files.length > 0) {
+          const slice = files.splice(0, batch).map(dirent => this._formatEntry(dirent, path));
+          for (const entry of await Promise.all(slice)) {
+            if (this.destroyed) return;
+
+            const entryType = await this._getEntryType(entry);
+            if (entryType === 'directory' && this._directoryFilter(entry)) {
+              if (depth <= this._maxDepth) {
+                this.parents.push(this._exploreDir(entry.fullPath, depth + 1));
+              }
+
+              if (this._wantsDir) {
+                this.push(entry);
+                batch--;
+              }
+            } else if ((entryType === 'file' || this._includeAsFile(entry)) && this._fileFilter(entry)) {
+              if (this._wantsFile) {
+                this.push(entry);
+                batch--;
+              }
+            }
+          }
+        } else {
+          const parent = this.parents.pop();
+          if (!parent) {
+            this.push(null);
+            break;
+          }
+          this.parent = await parent;
+          if (this.destroyed) return;
+        }
+      }
+    } catch (error) {
+      this.destroy(error);
+    } finally {
+      this.reading = false;
+    }
+  }
+
+  async _exploreDir(path, depth) {
+    let files;
+    try {
+      files = await readdir(path, this._rdOptions);
+    } catch (error) {
+      this._onError(error);
+    }
+    return { files, depth, path };
+  }
+
+  async _formatEntry(dirent, path) {
+    let entry;
+    try {
+      const basename = this._isDirent ? dirent.name : dirent;
+      const fullPath = sysPath.resolve(sysPath.join(path, basename));
+      entry = { path: sysPath.relative(this._root, fullPath), fullPath, basename };
+      entry[this._statsProp] = this._isDirent ? dirent : await this._stat(fullPath);
+    } catch (err) {
+      this._onError(err);
+    }
+    return entry;
+  }
+
+  _onError(err) {
+    if (isNormalFlowError(err) && !this.destroyed) {
+      this.emit('warn', err);
+    } else {
+      this.destroy(err);
+    }
+  }
+
+  async _getEntryType(entry) {
+    // entry may be undefined, because a warning or an error were emitted
+    // and the statsProp is undefined
+    const stats = entry && entry[this._statsProp];
+    if (!stats) {
+      return;
+    }
+    if (stats.isFile()) {
+      return 'file';
+    }
+    if (stats.isDirectory()) {
+      return 'directory';
+    }
+    if (stats && stats.isSymbolicLink()) {
+      const full = entry.fullPath;
+      try {
+        const entryRealPath = await realpath(full);
+        const entryRealPathStats = await lstat(entryRealPath);
+        if (entryRealPathStats.isFile()) {
+          return 'file';
+        }
+        if (entryRealPathStats.isDirectory()) {
+          const len = entryRealPath.length;
+          if (full.startsWith(entryRealPath) && full.substr(len, 1) === sysPath.sep) {
+            const recursiveError = new Error(
+              `Circular symlink detected: "${full}" points to "${entryRealPath}"`
+            );
+            recursiveError.code = RECURSIVE_ERROR_CODE;
+            return this._onError(recursiveError);
+          }
+          return 'directory';
+        }
+      } catch (error) {
+        this._onError(error);
+      }
+    }
+  }
+
+  _includeAsFile(entry) {
+    const stats = entry && entry[this._statsProp];
+
+    return stats && this._wantsEverything && !stats.isDirectory();
+  }
+}
+
+/**
+ * @typedef {Object} ReaddirpArguments
+ * @property {Function=} fileFilter
+ * @property {Function=} directoryFilter
+ * @property {String=} type
+ * @property {Number=} depth
+ * @property {String=} root
+ * @property {Boolean=} lstat
+ * @property {Boolean=} bigint
+ */
+
+/**
+ * Main function which ends up calling readdirRec and reads all files and directories in given root recursively.
+ * @param {String} root Root directory
+ * @param {ReaddirpArguments=} options Options to specify root (start directory), filters and recursion depth
+ */
+const readdirp = (root, options = {}) => {
+  let type = options.entryType || options.type;
+  if (type === 'both') type = FILE_DIR_TYPE; // backwards-compatibility
+  if (type) options.type = type;
+  if (!root) {
+    throw new Error('readdirp: root argument is required. Usage: readdirp(root, options)');
+  } else if (typeof root !== 'string') {
+    throw new TypeError('readdirp: root argument must be a string. Usage: readdirp(root, options)');
+  } else if (type && !ALL_TYPES.includes(type)) {
+    throw new Error(`readdirp: Invalid type passed. Use one of ${ALL_TYPES.join(', ')}`);
+  }
+
+  options.root = root;
+  return new ReaddirpStream(options);
+};
+
+const readdirpPromise = (root, options = {}) => {
+  return new Promise((resolve, reject) => {
+    const files = [];
+    readdirp(root, options)
+      .on('data', entry => files.push(entry))
+      .on('end', () => resolve(files))
+      .on('error', error => reject(error));
+  });
+};
+
+readdirp.promise = readdirpPromise;
+readdirp.ReaddirpStream = ReaddirpStream;
+readdirp.default = readdirp;
+
+module.exports = readdirp;
diff --git a/src/main/webapp/com/css/sass/node_modules/readdirp/package.json b/src/main/webapp/com/css/sass/node_modules/readdirp/package.json
new file mode 100644
index 00000000..dba53888
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/readdirp/package.json
@@ -0,0 +1,122 @@
+{
+  "name": "readdirp",
+  "description": "Recursive version of fs.readdir with streaming API.",
+  "version": "3.6.0",
+  "homepage": "https://github.com/paulmillr/readdirp",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/paulmillr/readdirp.git"
+  },
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/paulmillr/readdirp/issues"
+  },
+  "author": "Thorsten Lorenz <thlorenz@gmx.de> (thlorenz.com)",
+  "contributors": [
+    "Thorsten Lorenz <thlorenz@gmx.de> (thlorenz.com)",
+    "Paul Miller (https://paulmillr.com)"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=8.10.0"
+  },
+  "files": [
+    "index.js",
+    "index.d.ts"
+  ],
+  "keywords": [
+    "recursive",
+    "fs",
+    "stream",
+    "streams",
+    "readdir",
+    "filesystem",
+    "find",
+    "filter"
+  ],
+  "scripts": {
+    "dtslint": "dtslint",
+    "nyc": "nyc",
+    "mocha": "mocha --exit",
+    "lint": "eslint --report-unused-disable-directives --ignore-path .gitignore .",
+    "test": "npm run lint && nyc npm run mocha"
+  },
+  "dependencies": {
+    "picomatch": "^2.2.1"
+  },
+  "devDependencies": {
+    "@types/node": "^14",
+    "chai": "^4.2",
+    "chai-subset": "^1.6",
+    "dtslint": "^3.3.0",
+    "eslint": "^7.0.0",
+    "mocha": "^7.1.1",
+    "nyc": "^15.0.0",
+    "rimraf": "^3.0.0",
+    "typescript": "^4.0.3"
+  },
+  "nyc": {
+    "reporter": [
+      "html",
+      "text"
+    ]
+  },
+  "eslintConfig": {
+    "root": true,
+    "extends": "eslint:recommended",
+    "parserOptions": {
+      "ecmaVersion": 9,
+      "sourceType": "script"
+    },
+    "env": {
+      "node": true,
+      "es6": true
+    },
+    "rules": {
+      "array-callback-return": "error",
+      "no-empty": [
+        "error",
+        {
+          "allowEmptyCatch": true
+        }
+      ],
+      "no-else-return": [
+        "error",
+        {
+          "allowElseIf": false
+        }
+      ],
+      "no-lonely-if": "error",
+      "no-var": "error",
+      "object-shorthand": "error",
+      "prefer-arrow-callback": [
+        "error",
+        {
+          "allowNamedFunctions": true
+        }
+      ],
+      "prefer-const": [
+        "error",
+        {
+          "ignoreReadBeforeAssign": true
+        }
+      ],
+      "prefer-destructuring": [
+        "error",
+        {
+          "object": true,
+          "array": false
+        }
+      ],
+      "prefer-spread": "error",
+      "prefer-template": "error",
+      "radix": "error",
+      "semi": "error",
+      "strict": "error",
+      "quotes": [
+        "error",
+        "single"
+      ]
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/LICENSE b/src/main/webapp/com/css/sass/node_modules/sass/LICENSE
new file mode 100644
index 00000000..4ddaee78
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/LICENSE
@@ -0,0 +1,1727 @@
+Dart Sass license:
+
+Copyright (c) 2016, Google Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+--------------------------------------------------------------------------------
+
+Dart SDK license:
+
+Copyright 2012, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+_fe_analyzer_shared license:
+
+Copyright 2019, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+_macros and macros license:
+
+Copyright 2024, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+analyzer, protobuf and protoc_plugin license:
+
+Copyright 2013, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+archive license:
+
+The MIT License
+
+Copyright (c) 2013-2021 Brendan Duncan.
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+--------------------------------------------------------------------------------
+
+args, csslib and logging license:
+
+Copyright 2013, the Dart project authors. 
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+async, cli_util, collection, mime, source_map_stack_trace, stream_channel and
+typed_data license:
+
+Copyright 2015, the Dart project authors. 
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+boolean_selector, meta and shelf_packages_handler license:
+
+Copyright 2016, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+charcode license:
+
+Copyright 2014, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+checked_yaml license:
+
+Copyright 2019, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+cli_pkg license:
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+
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+--------------------------------------------------------------------------------
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+
+
+--------------------------------------------------------------------------------
+
+coverage, dart_style, dartdoc, glob, http, http_parser, matcher, path, pool,
+pub_semver, source_span, string_scanner, test and watcher license:
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+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
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+
+Permission is hereby granted, free of charge, to any person obtaining a copy
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+SOFTWARE.
+
+--------------------------------------------------------------------------------
+
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+
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+
+
+--------------------------------------------------------------------------------
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+
+--------------------------------------------------------------------------------
+
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+
+
+--------------------------------------------------------------------------------
+
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+
+
+--------------------------------------------------------------------------------
+
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+
+
+--------------------------------------------------------------------------------
+
+html license:
+
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+
+Contributors:
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+Anne van Kesteren - annevankesteren@gmail.com
+Lachlan Hunt - lachlan.hunt@lachy.id.au
+Matt McDonald - kanashii@kanashii.ca
+Sam Ruby - rubys@intertwingly.net
+Ian Hickson (Google) - ian@hixie.ch
+Thomas Broyer - t.broyer@ltgt.net
+Jacques Distler - distler@golem.ph.utexas.edu
+Henri Sivonen - hsivonen@iki.fi
+Adam Barth - abarth@webkit.org
+Eric Seidel - eric@webkit.org
+The Mozilla Foundation (contributions from Henri Sivonen since 2008)
+David Flanagan (Mozilla) - dflanagan@mozilla.com
+Google LLC (contributed the Dart port) - misc@dartlang.org
+
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+
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+
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+
+
+--------------------------------------------------------------------------------
+
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+
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+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+js license:
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+Copyright 2012, the Dart project authors.
+
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+met:
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+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+
+
+--------------------------------------------------------------------------------
+
+json_annotation license:
+
+Copyright 2017, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
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+met:
+
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+    * Neither the name of Google Inc. nor the names of its
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+
+
+--------------------------------------------------------------------------------
+
+lints license:
+
+Copyright 2021, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
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+met:
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+    * Neither the name of Google LLC nor the names of its
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+
+
+--------------------------------------------------------------------------------
+
+markdown license:
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+Copyright 2012, the Dart project authors. 
+
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+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+
+
+--------------------------------------------------------------------------------
+
+native_stack_traces license:
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+Copyright 2020, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
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+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+native_synchronization license:
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+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
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+met:
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+    * Neither the name of Google LLC nor the names of its
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+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+node_interop license:
+
+Copyright (c) 2017, Anatoly Pulyaevskiy.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
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+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+node_preamble license:
+
+The MIT License (MIT)
+
+Copyright (c) 2015 Michael Bullington
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+===
+
+Copyright 2012, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+petitparser and xml license:
+
+The MIT License
+
+Copyright (c) 2006-2023 Lukas Renggli.
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
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+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+--------------------------------------------------------------------------------
+
+pub_api_client license:
+
+MIT License
+
+Copyright (c) 2020 Leo Farias
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
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+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+--------------------------------------------------------------------------------
+
+pubspec license:
+
+Copyright (c) 2015, Anders Holmgren.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
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+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the <organization> nor the
+      names of its contributors may be used to endorse or promote products
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+
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+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+pubspec_parse license:
+
+Copyright 2018, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
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+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
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+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+quiver and retry license:
+
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+
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+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+test_descriptor and web_socket_channel license:
+
+Copyright 2016, the Dart project authors. 
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+test_process license:
+
+Copyright 2017, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
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+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+uri license:
+
+Copyright 2013, the Dart project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+web license:
+
+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+web_socket license:
+
+Copyright 2024, the Dart project authors. 
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+--------------------------------------------------------------------------------
+
+yaml license:
+
+Copyright (c) 2014, the Dart project authors.
+Copyright (c) 2006, Kirill Simonov.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/README.md b/src/main/webapp/com/css/sass/node_modules/sass/README.md
new file mode 100644
index 00000000..c7ad5914
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/README.md
@@ -0,0 +1,173 @@
+A pure JavaScript implementation of [Sass][sass]. **Sass makes CSS fun again**.
+
+<table>
+  <tr>
+    <td>
+      <img width="118px" alt="Sass logo" src="https://rawgit.com/sass/sass-site/master/source/assets/img/logos/logo.svg" />
+    </td>
+    <td valign="middle">
+      <a href="https://www.npmjs.com/package/sass"><img width="100%" alt="npm statistics" src="https://nodei.co/npm/sass.png?downloads=true"></a>
+    </td>
+    <td valign="middle">
+      <a href="https://github.com/sass/dart-sass/actions"><img alt="GitHub actions build status" src="https://github.com/sass/dart-sass/workflows/CI/badge.svg"></a>
+      <br>
+      <a href="https://ci.appveyor.com/project/nex3/dart-sass"><img alt="Appveyor build status" src="https://ci.appveyor.com/api/projects/status/84rl9hvu8uoecgef?svg=true"></a>
+    </td>
+  </tr>
+</table>
+
+[sass]: https://sass-lang.com/
+
+This package is a distribution of [Dart Sass][], compiled to pure JavaScript
+with no native code or external dependencies. It provides a command-line `sass`
+executable and a Node.js API.
+
+[Dart Sass]: https://github.com/sass/dart-sass
+
+* [Usage](#usage)
+* [See Also](#see-also)
+* [Behavioral Differences from Ruby Sass](#behavioral-differences-from-ruby-sass)
+
+## Usage
+
+You can install Sass globally using `npm install -g sass` which will provide
+access to the `sass` executable. You can also add it to your project using
+`npm install --save-dev sass`. This provides the executable as well as a
+library:
+
+[npm]: https://www.npmjs.com/package/sass
+
+```js
+const sass = require('sass');
+
+const result = sass.compile(scssFilename);
+
+// OR
+
+// Note that `compileAsync()` is substantially slower than `compile()`.
+const result = await sass.compileAsync(scssFilename);
+```
+
+See [the Sass website][js api] for full API documentation.
+
+[js api]: https://sass-lang.com/documentation/js-api
+
+### Legacy API
+
+Dart Sass also supports an older JavaScript API that's fully compatible with
+[Node Sass] (with a few exceptions listed below), with support for both the
+[`render()`] and [`renderSync()`] functions. This API is considered deprecated
+and will be removed in Dart Sass 2.0.0, so it should be avoided in new projects.
+
+[Node Sass]: https://github.com/sass/node-sass
+[`render()`]: https://sass-lang.com/documentation/js-api/functions/render
+[`renderSync()`]: https://sass-lang.com/documentation/js-api/functions/renderSync
+
+Sass's support for the legacy JavaScript API has the following limitations:
+
+* Only the `"expanded"` and `"compressed"` values of [`outputStyle`] are
+  supported.
+
+* Dart Sass doesn't support the [`precision`] option. Dart Sass defaults to a
+  sufficiently high precision for all existing browsers, and making this
+  customizable would make the code substantially less efficient.
+
+* Dart Sass doesn't support the [`sourceComments`] option. Source maps are the
+  recommended way of locating the origin of generated selectors.
+
+[`outputStyle`]: https://sass-lang.com/documentation/js-api/interfaces/LegacySharedOptions#outputStyle
+[`precision`]: https://github.com/sass/node-sass#precision
+[`sourceComments`]: https://github.com/sass/node-sass#sourcecomments
+
+## See Also
+
+* [Dart Sass][], from which this package is compiled, can be used either as a
+  stand-alone executable or as a Dart library. Running Dart Sass on the Dart VM
+  is substantially faster than running the pure JavaScript version, so this may
+  be appropriate for performance-sensitive applications. The Dart API is also
+  (currently) more user-friendly than the JavaScript API. See
+  [the Dart Sass README][Using Dart Sass] for details on how to use it.
+
+* [Node Sass][], which is a wrapper around [LibSass][], the C++ implementation
+  of Sass. Node Sass supports the same API as this package and is also faster
+  (although it's usually a little slower than Dart Sass). However, it requires a
+  native library which may be difficult to install, and it's generally slower to
+  add features and fix bugs.
+
+[Using Dart Sass]: https://github.com/sass/dart-sass#using-dart-sass
+[Node Sass]: https://www.npmjs.com/package/node-sass
+[LibSass]: https://sass-lang.com/libsass
+
+## Behavioral Differences from Ruby Sass
+
+There are a few intentional behavioral differences between Dart Sass and Ruby
+Sass. These are generally places where Ruby Sass has an undesired behavior, and
+it's substantially easier to implement the correct behavior than it would be to
+implement compatible behavior. These should all have tracking bugs against Ruby
+Sass to update the reference behavior.
+
+1. `@extend` only accepts simple selectors, as does the second argument of
+   `selector-extend()`. See [issue 1599][].
+
+2. Subject selectors are not supported. See [issue 1126][].
+
+3. Pseudo selector arguments are parsed as `<declaration-value>`s rather than
+   having a more limited custom parsing. See [issue 2120][].
+
+4. The numeric precision is set to 10. See [issue 1122][].
+
+5. The indented syntax parser is more flexible: it doesn't require consistent
+   indentation across the whole document. See [issue 2176][].
+
+6. Colors do not support channel-by-channel arithmetic. See [issue 2144][].
+
+7. Unitless numbers aren't `==` to unit numbers with the same value. In
+   addition, map keys follow the same logic as `==`-equality. See
+   [issue 1496][].
+
+8. `rgba()` and `hsla()` alpha values with percentage units are interpreted as
+   percentages. Other units are forbidden. See [issue 1525][].
+
+9. Too many variable arguments passed to a function is an error. See
+   [issue 1408][].
+
+10. Allow `@extend` to reach outside a media query if there's an identical
+    `@extend` defined outside that query. This isn't tracked explicitly, because
+    it'll be irrelevant when [issue 1050][] is fixed.
+
+11. Some selector pseudos containing placeholder selectors will be compiled
+    where they wouldn't be in Ruby Sass. This better matches the semantics of
+    the selectors in question, and is more efficient. See [issue 2228][].
+
+12. The old-style `:property value` syntax is not supported in the indented
+    syntax. See [issue 2245][].
+
+13. The reference combinator is not supported. See [issue 303][].
+
+14. Universal selector unification is symmetrical. See [issue 2247][].
+
+15. `@extend` doesn't produce an error if it matches but fails to unify. See
+    [issue 2250][].
+
+16. Dart Sass currently only supports UTF-8 documents. We'd like to support
+    more, but Dart currently doesn't support them. See [dart-lang/sdk#11744][],
+    for example.
+
+[issue 1599]: https://github.com/sass/sass/issues/1599
+[issue 1126]: https://github.com/sass/sass/issues/1126
+[issue 2120]: https://github.com/sass/sass/issues/2120
+[issue 1122]: https://github.com/sass/sass/issues/1122
+[issue 2176]: https://github.com/sass/sass/issues/2176
+[issue 2144]: https://github.com/sass/sass/issues/2144
+[issue 1496]: https://github.com/sass/sass/issues/1496
+[issue 1525]: https://github.com/sass/sass/issues/1525
+[issue 1408]: https://github.com/sass/sass/issues/1408
+[issue 1050]: https://github.com/sass/sass/issues/1050
+[issue 2228]: https://github.com/sass/sass/issues/2228
+[issue 2245]: https://github.com/sass/sass/issues/2245
+[issue 303]: https://github.com/sass/sass/issues/303
+[issue 2247]: https://github.com/sass/sass/issues/2247
+[issue 2250]: https://github.com/sass/sass/issues/2250
+[dart-lang/sdk#11744]: https://github.com/dart-lang/sdk/issues/11744
+
+Disclaimer: this is not an official Google product.
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/package.json b/src/main/webapp/com/css/sass/node_modules/sass/package.json
new file mode 100644
index 00000000..4efada09
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/package.json
@@ -0,0 +1 @@
+{"name":"sass","description":"A pure JavaScript implementation of Sass.","license":"MIT","bugs":"https://github.com/sass/dart-sass/issues","homepage":"https://github.com/sass/dart-sass","repository":{"type":"git","url":"https://github.com/sass/dart-sass"},"author":{"name":"Natalie Weizenbaum","email":"nweiz@google.com","url":"https://github.com/nex3"},"engines":{"node":">=14.0.0"},"dependencies":{"chokidar":">=3.0.0 <4.0.0","immutable":"^4.0.0","source-map-js":">=0.6.2 <2.0.0"},"keywords":["style","scss","sass","preprocessor","css"],"types":"types/index.d.ts","exports":{"types":"./types/index.d.ts","node":{"require":"./sass.node.js","default":"./sass.node.mjs"},"default":{"require":"./sass.default.cjs","default":"./sass.default.js"}},"version":"1.77.4","bin":{"sass":"sass.js"},"main":"sass.node.js"}
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/sass.dart.js b/src/main/webapp/com/css/sass/node_modules/sass/sass.dart.js
new file mode 100644
index 00000000..37750eb8
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/sass.dart.js
@@ -0,0 +1,118367 @@
+// Because of vitejs/vite#12340, there's no way to reliably detect whether we're
+// running as a (possibly bundled/polyfilled) ESM module or as a CommonJS
+// module. In order to work everywhere, we have to provide the load function via
+// a side channel on the global object. We write it as a stack so that multiple
+// cli_pkg packages can depend on one another without clobbering their exports.
+if (!globalThis._cliPkgExports) {
+  globalThis._cliPkgExports = [];
+}
+let _cliPkgExports = {};
+globalThis._cliPkgExports.push(_cliPkgExports);
+
+_cliPkgExports.load = function(_cliPkgRequires, _cliPkgExportParam) {
+var dartNodeIsActuallyNode = typeof process !== "undefined" && (process.versions || {}).hasOwnProperty('node');
+
+// make sure to keep this as 'var'
+// we don't want block scoping
+var self = dartNodeIsActuallyNode ? Object.create(globalThis) : globalThis;
+
+self.scheduleImmediate = typeof setImmediate !== "undefined"
+    ? function (cb) {
+        setImmediate(cb);
+      }
+    : function(cb) {
+        setTimeout(cb, 0);
+      };
+
+// CommonJS globals.
+if (typeof require !== "undefined") {
+  self.require = require;
+}
+self.exports = _cliPkgExportParam || _cliPkgExports;
+
+// Node.js specific exports, check to see if they exist & or polyfilled
+
+if (typeof process !== "undefined") {
+  self.process = process;
+}
+
+if (typeof __dirname !== "undefined") {
+  self.__dirname = __dirname;
+}
+
+if (typeof __filename !== "undefined") {
+  self.__filename = __filename;
+}
+
+if (typeof Buffer !== "undefined") {
+  self.Buffer = Buffer;
+}
+
+// if we're running in a browser, Dart supports most of this out of box
+// make sure we only run these in Node.js environment
+
+if (dartNodeIsActuallyNode) {
+  // This line is to:
+  // 1) Prevent Webpack from bundling.
+  // 2) In Webpack on Node.js, make sure we're using the native Node.js require, which is available via __non_webpack_require__
+  // https://github.com/mbullington/node_preamble.dart/issues/18#issuecomment-527305561
+  var url = ("undefined" !== typeof __webpack_require__ ? __non_webpack_require__ : require)("url");
+
+  // Setting `self.location=` in Electron throws a `TypeError`, so we define it
+  // as a property instead to be safe.
+  Object.defineProperty(self, "location", {
+    value: {
+      get href() {
+        if (url.pathToFileURL) {
+          return url.pathToFileURL(process.cwd()).href + "/";
+        } else {
+          // This isn't really a correct transformation, but it's the best we have
+          // for versions of Node <10.12.0 which introduced `url.pathToFileURL()`.
+          // For example, it will fail for paths that contain characters that need
+          // to be escaped in URLs.
+          return "file://" + (function() {
+            var cwd = process.cwd();
+            if (process.platform != "win32") return cwd;
+            return "/" + cwd.replace(/\\/g, "/");
+          })() + "/"
+        }
+      }
+    }
+  });
+
+  (function() {
+    function computeCurrentScript() {
+      try {
+        throw new Error();
+      } catch(e) {
+        var stack = e.stack;
+        var re = new RegExp("^ *at [^(]*\\((.*):[0-9]*:[0-9]*\\)$", "mg");
+        var lastMatch = null;
+        do {
+          var match = re.exec(stack);
+          if (match != null) lastMatch = match;
+        } while (match != null);
+        return lastMatch[1];
+      }
+    }
+
+    // Setting `self.document=` isn't known to throw an error anywhere like
+    // `self.location=` does on Electron, but it's better to be future-proof
+    // just in case..
+    var cachedCurrentScript = null;
+    Object.defineProperty(self, "document", {
+      value: {
+        get currentScript() {
+          if (cachedCurrentScript == null) {
+            cachedCurrentScript = {src: computeCurrentScript()};
+          }
+          return cachedCurrentScript;
+        }
+      }
+    });
+  })();
+
+  self.dartDeferredLibraryLoader = function(uri, successCallback, errorCallback) {
+    try {
+     load(uri);
+      successCallback();
+    } catch (error) {
+      errorCallback(error);
+    }
+  };
+}
+
+self.immutable = _cliPkgRequires.immutable;
+self.chokidar = _cliPkgRequires.chokidar;
+self.readline = _cliPkgRequires.readline;
+self.fs = _cliPkgRequires.fs;
+self.nodeModule = _cliPkgRequires.nodeModule;
+self.stream = _cliPkgRequires.stream;
+self.util = _cliPkgRequires.util;
+// Generated by dart2js (NullSafetyMode.sound, trust primitives, omit checks, lax runtime type, csp, intern-composite-values), the Dart to JavaScript compiler version: 3.4.2.
+// The code supports the following hooks:
+// dartPrint(message):
+//    if this function is defined it is called instead of the Dart [print]
+//    method.
+//
+// dartMainRunner(main, args):
+//    if this function is defined, the Dart [main] method will not be invoked
+//    directly. Instead, a closure that will invoke [main], and its arguments
+//    [args] is passed to [dartMainRunner].
+//
+// dartDeferredLibraryLoader(uri, successCallback, errorCallback, loadId, loadPriority):
+//    if this function is defined, it will be called when a deferred library
+//    is loaded. It should load and eval the javascript of `uri`, and call
+//    successCallback. If it fails to do so, it should call errorCallback with
+//    an error. The loadId argument is the deferred import that resulted in
+//    this uri being loaded. The loadPriority argument is the priority the
+//    library should be loaded with as specified in the code via the
+//    load-priority annotation (0: normal, 1: high).
+// dartDeferredLibraryMultiLoader(uris, successCallback, errorCallback, loadId, loadPriority):
+//    if this function is defined, it will be called when a deferred library
+//    is loaded. It should load and eval the javascript of every URI in `uris`,
+//    and call successCallback. If it fails to do so, it should call
+//    errorCallback with an error. The loadId argument is the deferred import
+//    that resulted in this uri being loaded. The loadPriority argument is the
+//    priority the library should be loaded with as specified in the code via
+//    the load-priority annotation (0: normal, 1: high).
+//
+// dartCallInstrumentation(id, qualifiedName):
+//    if this function is defined, it will be called at each entry of a
+//    method or constructor. Used only when compiling programs with
+//    --experiment-call-instrumentation.
+(function dartProgram() {
+  function copyProperties(from, to) {
+    var keys = Object.keys(from);
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      to[key] = from[key];
+    }
+  }
+  function mixinPropertiesHard(from, to) {
+    var keys = Object.keys(from);
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      if (!to.hasOwnProperty(key)) {
+        to[key] = from[key];
+      }
+    }
+  }
+  function mixinPropertiesEasy(from, to) {
+    Object.assign(to, from);
+  }
+  var supportsDirectProtoAccess = function() {
+    var cls = function() {
+    };
+    cls.prototype = {p: {}};
+    var object = new cls();
+    if (!(Object.getPrototypeOf(object) && Object.getPrototypeOf(object).p === cls.prototype.p))
+      return false;
+    try {
+      if (typeof navigator != "undefined" && typeof navigator.userAgent == "string" && navigator.userAgent.indexOf("Chrome/") >= 0)
+        return true;
+      if (typeof version == "function" && version.length == 0) {
+        var v = version();
+        if (/^\d+\.\d+\.\d+\.\d+$/.test(v))
+          return true;
+      }
+    } catch (_) {
+    }
+    return false;
+  }();
+  function inherit(cls, sup) {
+    cls.prototype.constructor = cls;
+    cls.prototype["$is" + cls.name] = cls;
+    if (sup != null) {
+      if (supportsDirectProtoAccess) {
+        Object.setPrototypeOf(cls.prototype, sup.prototype);
+        return;
+      }
+      var clsPrototype = Object.create(sup.prototype);
+      copyProperties(cls.prototype, clsPrototype);
+      cls.prototype = clsPrototype;
+    }
+  }
+  function inheritMany(sup, classes) {
+    for (var i = 0; i < classes.length; i++) {
+      inherit(classes[i], sup);
+    }
+  }
+  function mixinEasy(cls, mixin) {
+    mixinPropertiesEasy(mixin.prototype, cls.prototype);
+    cls.prototype.constructor = cls;
+  }
+  function mixinHard(cls, mixin) {
+    mixinPropertiesHard(mixin.prototype, cls.prototype);
+    cls.prototype.constructor = cls;
+  }
+  function lazy(holder, name, getterName, initializer) {
+    var uninitializedSentinel = holder;
+    holder[name] = uninitializedSentinel;
+    holder[getterName] = function() {
+      if (holder[name] === uninitializedSentinel) {
+        holder[name] = initializer();
+      }
+      holder[getterName] = function() {
+        return this[name];
+      };
+      return holder[name];
+    };
+  }
+  function lazyFinal(holder, name, getterName, initializer) {
+    var uninitializedSentinel = holder;
+    holder[name] = uninitializedSentinel;
+    holder[getterName] = function() {
+      if (holder[name] === uninitializedSentinel) {
+        var value = initializer();
+        if (holder[name] !== uninitializedSentinel) {
+          A.throwLateFieldADI(name);
+        }
+        holder[name] = value;
+      }
+      var finalValue = holder[name];
+      holder[getterName] = function() {
+        return finalValue;
+      };
+      return finalValue;
+    };
+  }
+  function makeConstList(list) {
+    list.immutable$list = Array;
+    list.fixed$length = Array;
+    return list;
+  }
+  function convertToFastObject(properties) {
+    function t() {
+    }
+    t.prototype = properties;
+    new t();
+    return properties;
+  }
+  function convertAllToFastObject(arrayOfObjects) {
+    for (var i = 0; i < arrayOfObjects.length; ++i) {
+      convertToFastObject(arrayOfObjects[i]);
+    }
+  }
+  var functionCounter = 0;
+  function instanceTearOffGetter(isIntercepted, parameters) {
+    var cache = null;
+    return isIntercepted ? function(receiver) {
+      if (cache === null)
+        cache = A.closureFromTearOff(parameters);
+      return new cache(receiver, this);
+    } : function() {
+      if (cache === null)
+        cache = A.closureFromTearOff(parameters);
+      return new cache(this, null);
+    };
+  }
+  function staticTearOffGetter(parameters) {
+    var cache = null;
+    return function() {
+      if (cache === null)
+        cache = A.closureFromTearOff(parameters).prototype;
+      return cache;
+    };
+  }
+  var typesOffset = 0;
+  function tearOffParameters(container, isStatic, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, needsDirectAccess) {
+    if (typeof funType == "number") {
+      funType += typesOffset;
+    }
+    return {co: container, iS: isStatic, iI: isIntercepted, rC: requiredParameterCount, dV: optionalParameterDefaultValues, cs: callNames, fs: funsOrNames, fT: funType, aI: applyIndex || 0, nDA: needsDirectAccess};
+  }
+  function installStaticTearOff(holder, getterName, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex) {
+    var parameters = tearOffParameters(holder, true, false, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, false);
+    var getterFunction = staticTearOffGetter(parameters);
+    holder[getterName] = getterFunction;
+  }
+  function installInstanceTearOff(prototype, getterName, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, needsDirectAccess) {
+    isIntercepted = !!isIntercepted;
+    var parameters = tearOffParameters(prototype, false, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, funsOrNames, funType, applyIndex, !!needsDirectAccess);
+    var getterFunction = instanceTearOffGetter(isIntercepted, parameters);
+    prototype[getterName] = getterFunction;
+  }
+  function setOrUpdateInterceptorsByTag(newTags) {
+    var tags = init.interceptorsByTag;
+    if (!tags) {
+      init.interceptorsByTag = newTags;
+      return;
+    }
+    copyProperties(newTags, tags);
+  }
+  function setOrUpdateLeafTags(newTags) {
+    var tags = init.leafTags;
+    if (!tags) {
+      init.leafTags = newTags;
+      return;
+    }
+    copyProperties(newTags, tags);
+  }
+  function updateTypes(newTypes) {
+    var types = init.types;
+    var length = types.length;
+    types.push.apply(types, newTypes);
+    return length;
+  }
+  function updateHolder(holder, newHolder) {
+    copyProperties(newHolder, holder);
+    return holder;
+  }
+  var hunkHelpers = function() {
+    var mkInstance = function(isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, applyIndex) {
+        return function(container, getterName, name, funType) {
+          return installInstanceTearOff(container, getterName, isIntercepted, requiredParameterCount, optionalParameterDefaultValues, callNames, [name], funType, applyIndex, false);
+        };
+      },
+      mkStatic = function(requiredParameterCount, optionalParameterDefaultValues, callNames, applyIndex) {
+        return function(container, getterName, name, funType) {
+          return installStaticTearOff(container, getterName, requiredParameterCount, optionalParameterDefaultValues, callNames, [name], funType, applyIndex);
+        };
+      };
+    return {inherit: inherit, inheritMany: inheritMany, mixin: mixinEasy, mixinHard: mixinHard, installStaticTearOff: installStaticTearOff, installInstanceTearOff: installInstanceTearOff, _instance_0u: mkInstance(0, 0, null, ["call$0"], 0), _instance_1u: mkInstance(0, 1, null, ["call$1"], 0), _instance_2u: mkInstance(0, 2, null, ["call$2"], 0), _instance_0i: mkInstance(1, 0, null, ["call$0"], 0), _instance_1i: mkInstance(1, 1, null, ["call$1"], 0), _instance_2i: mkInstance(1, 2, null, ["call$2"], 0), _static_0: mkStatic(0, null, ["call$0"], 0), _static_1: mkStatic(1, null, ["call$1"], 0), _static_2: mkStatic(2, null, ["call$2"], 0), makeConstList: makeConstList, lazy: lazy, lazyFinal: lazyFinal, updateHolder: updateHolder, convertToFastObject: convertToFastObject, updateTypes: updateTypes, setOrUpdateInterceptorsByTag: setOrUpdateInterceptorsByTag, setOrUpdateLeafTags: setOrUpdateLeafTags};
+  }();
+  function initializeDeferredHunk(hunk) {
+    typesOffset = init.types.length;
+    hunk(hunkHelpers, init, holders, $);
+  }
+  var J = {
+    makeDispatchRecord(interceptor, proto, extension, indexability) {
+      return {i: interceptor, p: proto, e: extension, x: indexability};
+    },
+    getNativeInterceptor(object) {
+      var proto, objectProto, $constructor, interceptor, t1,
+        record = object[init.dispatchPropertyName];
+      if (record == null)
+        if ($.initNativeDispatchFlag == null) {
+          A.initNativeDispatch();
+          record = object[init.dispatchPropertyName];
+        }
+      if (record != null) {
+        proto = record.p;
+        if (false === proto)
+          return record.i;
+        if (true === proto)
+          return object;
+        objectProto = Object.getPrototypeOf(object);
+        if (proto === objectProto)
+          return record.i;
+        if (record.e === objectProto)
+          throw A.wrapException(A.UnimplementedError$("Return interceptor for " + A.S(proto(object, record))));
+      }
+      $constructor = object.constructor;
+      if ($constructor == null)
+        interceptor = null;
+      else {
+        t1 = $._JS_INTEROP_INTERCEPTOR_TAG;
+        if (t1 == null)
+          t1 = $._JS_INTEROP_INTERCEPTOR_TAG = init.getIsolateTag("_$dart_js");
+        interceptor = $constructor[t1];
+      }
+      if (interceptor != null)
+        return interceptor;
+      interceptor = A.lookupAndCacheInterceptor(object);
+      if (interceptor != null)
+        return interceptor;
+      if (typeof object == "function")
+        return B.JavaScriptFunction_methods;
+      proto = Object.getPrototypeOf(object);
+      if (proto == null)
+        return B.PlainJavaScriptObject_methods;
+      if (proto === Object.prototype)
+        return B.PlainJavaScriptObject_methods;
+      if (typeof $constructor == "function") {
+        t1 = $._JS_INTEROP_INTERCEPTOR_TAG;
+        if (t1 == null)
+          t1 = $._JS_INTEROP_INTERCEPTOR_TAG = init.getIsolateTag("_$dart_js");
+        Object.defineProperty($constructor, t1, {value: B.UnknownJavaScriptObject_methods, enumerable: false, writable: true, configurable: true});
+        return B.UnknownJavaScriptObject_methods;
+      }
+      return B.UnknownJavaScriptObject_methods;
+    },
+    JSArray_JSArray$fixed($length, $E) {
+      if ($length < 0 || $length > 4294967295)
+        throw A.wrapException(A.RangeError$range($length, 0, 4294967295, "length", null));
+      return J.JSArray_JSArray$markFixed(new Array($length), $E);
+    },
+    JSArray_JSArray$allocateFixed($length, $E) {
+      if ($length > 4294967295)
+        throw A.wrapException(A.RangeError$range($length, 0, 4294967295, "length", null));
+      return J.JSArray_JSArray$markFixed(new Array($length), $E);
+    },
+    JSArray_JSArray$growable($length, $E) {
+      if ($length < 0)
+        throw A.wrapException(A.ArgumentError$("Length must be a non-negative integer: " + $length, null));
+      return A._setArrayType(new Array($length), $E._eval$1("JSArray<0>"));
+    },
+    JSArray_JSArray$allocateGrowable($length, $E) {
+      if ($length < 0)
+        throw A.wrapException(A.ArgumentError$("Length must be a non-negative integer: " + $length, null));
+      return A._setArrayType(new Array($length), $E._eval$1("JSArray<0>"));
+    },
+    JSArray_JSArray$markFixed(allocation, $E) {
+      return J.JSArray_markFixedList(A._setArrayType(allocation, $E._eval$1("JSArray<0>")));
+    },
+    JSArray_markFixedList(list) {
+      list.fixed$length = Array;
+      return list;
+    },
+    JSArray_markUnmodifiableList(list) {
+      list.fixed$length = Array;
+      list.immutable$list = Array;
+      return list;
+    },
+    JSArray__compareAny(a, b) {
+      return J.compareTo$1$ns(a, b);
+    },
+    JSString__isWhitespace(codeUnit) {
+      if (codeUnit < 256)
+        switch (codeUnit) {
+          case 9:
+          case 10:
+          case 11:
+          case 12:
+          case 13:
+          case 32:
+          case 133:
+          case 160:
+            return true;
+          default:
+            return false;
+        }
+      switch (codeUnit) {
+        case 5760:
+        case 8192:
+        case 8193:
+        case 8194:
+        case 8195:
+        case 8196:
+        case 8197:
+        case 8198:
+        case 8199:
+        case 8200:
+        case 8201:
+        case 8202:
+        case 8232:
+        case 8233:
+        case 8239:
+        case 8287:
+        case 12288:
+        case 65279:
+          return true;
+        default:
+          return false;
+      }
+    },
+    JSString__skipLeadingWhitespace(string, index) {
+      var t1, codeUnit;
+      for (t1 = string.length; index < t1;) {
+        codeUnit = string.charCodeAt(index);
+        if (codeUnit !== 32 && codeUnit !== 13 && !J.JSString__isWhitespace(codeUnit))
+          break;
+        ++index;
+      }
+      return index;
+    },
+    JSString__skipTrailingWhitespace(string, index) {
+      var index0, codeUnit;
+      for (; index > 0; index = index0) {
+        index0 = index - 1;
+        codeUnit = string.charCodeAt(index0);
+        if (codeUnit !== 32 && codeUnit !== 13 && !J.JSString__isWhitespace(codeUnit))
+          break;
+      }
+      return index;
+    },
+    getInterceptor$(receiver) {
+      if (typeof receiver == "number") {
+        if (Math.floor(receiver) == receiver)
+          return J.JSInt.prototype;
+        return J.JSNumNotInt.prototype;
+      }
+      if (typeof receiver == "string")
+        return J.JSString.prototype;
+      if (receiver == null)
+        return J.JSNull.prototype;
+      if (typeof receiver == "boolean")
+        return J.JSBool.prototype;
+      if (Array.isArray(receiver))
+        return J.JSArray.prototype;
+      if (typeof receiver != "object") {
+        if (typeof receiver == "function")
+          return J.JavaScriptFunction.prototype;
+        if (typeof receiver == "symbol")
+          return J.JavaScriptSymbol.prototype;
+        if (typeof receiver == "bigint")
+          return J.JavaScriptBigInt.prototype;
+        return receiver;
+      }
+      if (receiver instanceof A.Object)
+        return receiver;
+      return J.getNativeInterceptor(receiver);
+    },
+    getInterceptor$ansx(receiver) {
+      if (typeof receiver == "number")
+        return J.JSNumber.prototype;
+      if (typeof receiver == "string")
+        return J.JSString.prototype;
+      if (receiver == null)
+        return receiver;
+      if (Array.isArray(receiver))
+        return J.JSArray.prototype;
+      if (typeof receiver != "object") {
+        if (typeof receiver == "function")
+          return J.JavaScriptFunction.prototype;
+        if (typeof receiver == "symbol")
+          return J.JavaScriptSymbol.prototype;
+        if (typeof receiver == "bigint")
+          return J.JavaScriptBigInt.prototype;
+        return receiver;
+      }
+      if (receiver instanceof A.Object)
+        return receiver;
+      return J.getNativeInterceptor(receiver);
+    },
+    getInterceptor$asx(receiver) {
+      if (typeof receiver == "string")
+        return J.JSString.prototype;
+      if (receiver == null)
+        return receiver;
+      if (Array.isArray(receiver))
+        return J.JSArray.prototype;
+      if (typeof receiver != "object") {
+        if (typeof receiver == "function")
+          return J.JavaScriptFunction.prototype;
+        if (typeof receiver == "symbol")
+          return J.JavaScriptSymbol.prototype;
+        if (typeof receiver == "bigint")
+          return J.JavaScriptBigInt.prototype;
+        return receiver;
+      }
+      if (receiver instanceof A.Object)
+        return receiver;
+      return J.getNativeInterceptor(receiver);
+    },
+    getInterceptor$ax(receiver) {
+      if (receiver == null)
+        return receiver;
+      if (Array.isArray(receiver))
+        return J.JSArray.prototype;
+      if (typeof receiver != "object") {
+        if (typeof receiver == "function")
+          return J.JavaScriptFunction.prototype;
+        if (typeof receiver == "symbol")
+          return J.JavaScriptSymbol.prototype;
+        if (typeof receiver == "bigint")
+          return J.JavaScriptBigInt.prototype;
+        return receiver;
+      }
+      if (receiver instanceof A.Object)
+        return receiver;
+      return J.getNativeInterceptor(receiver);
+    },
+    getInterceptor$in(receiver) {
+      if (typeof receiver == "number") {
+        if (Math.floor(receiver) == receiver)
+          return J.JSInt.prototype;
+        return J.JSNumNotInt.prototype;
+      }
+      if (receiver == null)
+        return receiver;
+      if (!(receiver instanceof A.Object))
+        return J.UnknownJavaScriptObject.prototype;
+      return receiver;
+    },
+    getInterceptor$n(receiver) {
+      if (typeof receiver == "number")
+        return J.JSNumber.prototype;
+      if (receiver == null)
+        return receiver;
+      if (!(receiver instanceof A.Object))
+        return J.UnknownJavaScriptObject.prototype;
+      return receiver;
+    },
+    getInterceptor$ns(receiver) {
+      if (typeof receiver == "number")
+        return J.JSNumber.prototype;
+      if (typeof receiver == "string")
+        return J.JSString.prototype;
+      if (receiver == null)
+        return receiver;
+      if (!(receiver instanceof A.Object))
+        return J.UnknownJavaScriptObject.prototype;
+      return receiver;
+    },
+    getInterceptor$s(receiver) {
+      if (typeof receiver == "string")
+        return J.JSString.prototype;
+      if (receiver == null)
+        return receiver;
+      if (!(receiver instanceof A.Object))
+        return J.UnknownJavaScriptObject.prototype;
+      return receiver;
+    },
+    getInterceptor$x(receiver) {
+      if (receiver == null)
+        return receiver;
+      if (typeof receiver != "object") {
+        if (typeof receiver == "function")
+          return J.JavaScriptFunction.prototype;
+        if (typeof receiver == "symbol")
+          return J.JavaScriptSymbol.prototype;
+        if (typeof receiver == "bigint")
+          return J.JavaScriptBigInt.prototype;
+        return receiver;
+      }
+      if (receiver instanceof A.Object)
+        return receiver;
+      return J.getNativeInterceptor(receiver);
+    },
+    getInterceptor$z(receiver) {
+      if (receiver == null)
+        return receiver;
+      if (!(receiver instanceof A.Object))
+        return J.UnknownJavaScriptObject.prototype;
+      return receiver;
+    },
+    set$AsyncCompiler$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$AsyncCompiler(receiver, value);
+    },
+    set$CalculationInterpolation$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$CalculationInterpolation(receiver, value);
+    },
+    set$CalculationOperation$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$CalculationOperation(receiver, value);
+    },
+    set$Compiler$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$Compiler(receiver, value);
+    },
+    set$Exception$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$Exception(receiver, value);
+    },
+    set$FALSE$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$FALSE(receiver, value);
+    },
+    set$Logger$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$Logger(receiver, value);
+    },
+    set$NULL$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$NULL(receiver, value);
+    },
+    set$NodePackageImporter$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$NodePackageImporter(receiver, value);
+    },
+    set$SassArgumentList$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassArgumentList(receiver, value);
+    },
+    set$SassBoolean$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassBoolean(receiver, value);
+    },
+    set$SassCalculation$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassCalculation(receiver, value);
+    },
+    set$SassColor$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassColor(receiver, value);
+    },
+    set$SassFunction$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassFunction(receiver, value);
+    },
+    set$SassList$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassList(receiver, value);
+    },
+    set$SassMap$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassMap(receiver, value);
+    },
+    set$SassMixin$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassMixin(receiver, value);
+    },
+    set$SassNumber$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassNumber(receiver, value);
+    },
+    set$SassString$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$SassString(receiver, value);
+    },
+    set$TRUE$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$TRUE(receiver, value);
+    },
+    set$Value$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$Value(receiver, value);
+    },
+    set$Version$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$Version(receiver, value);
+    },
+    set$cli_pkg_main_0_$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$cli_pkg_main_0_(receiver, value);
+    },
+    set$compile$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$compile(receiver, value);
+    },
+    set$compileAsync$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$compileAsync(receiver, value);
+    },
+    set$compileString$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$compileString(receiver, value);
+    },
+    set$compileStringAsync$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$compileStringAsync(receiver, value);
+    },
+    set$context$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$context(receiver, value);
+    },
+    set$dartValue$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$dartValue(receiver, value);
+    },
+    set$deprecations$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$deprecations(receiver, value);
+    },
+    set$exitCode$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$exitCode(receiver, value);
+    },
+    set$info$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$info(receiver, value);
+    },
+    set$initAsyncCompiler$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$initAsyncCompiler(receiver, value);
+    },
+    set$initCompiler$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$initCompiler(receiver, value);
+    },
+    set$length$asx(receiver, value) {
+      return J.getInterceptor$asx(receiver).set$length(receiver, value);
+    },
+    set$render$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$render(receiver, value);
+    },
+    set$renderSync$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$renderSync(receiver, value);
+    },
+    set$sassFalse$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$sassFalse(receiver, value);
+    },
+    set$sassNull$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$sassNull(receiver, value);
+    },
+    set$sassTrue$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$sassTrue(receiver, value);
+    },
+    set$types$x(receiver, value) {
+      return J.getInterceptor$x(receiver).set$types(receiver, value);
+    },
+    get$$prototype$x(receiver) {
+      return J.getInterceptor$x(receiver).get$$prototype(receiver);
+    },
+    get$_dartException$x(receiver) {
+      return J.getInterceptor$x(receiver).get$_dartException(receiver);
+    },
+    get$alertAscii$x(receiver) {
+      return J.getInterceptor$x(receiver).get$alertAscii(receiver);
+    },
+    get$alertColor$x(receiver) {
+      return J.getInterceptor$x(receiver).get$alertColor(receiver);
+    },
+    get$argv$x(receiver) {
+      return J.getInterceptor$x(receiver).get$argv(receiver);
+    },
+    get$blue$x(receiver) {
+      return J.getInterceptor$x(receiver).get$blue(receiver);
+    },
+    get$brackets$x(receiver) {
+      return J.getInterceptor$x(receiver).get$brackets(receiver);
+    },
+    get$charset$x(receiver) {
+      return J.getInterceptor$x(receiver).get$charset(receiver);
+    },
+    get$code$x(receiver) {
+      return J.getInterceptor$x(receiver).get$code(receiver);
+    },
+    get$current$x(receiver) {
+      return J.getInterceptor$x(receiver).get$current(receiver);
+    },
+    get$dartValue$x(receiver) {
+      return J.getInterceptor$x(receiver).get$dartValue(receiver);
+    },
+    get$debug$x(receiver) {
+      return J.getInterceptor$x(receiver).get$debug(receiver);
+    },
+    get$denominatorUnits$x(receiver) {
+      return J.getInterceptor$x(receiver).get$denominatorUnits(receiver);
+    },
+    get$end$z(receiver) {
+      return J.getInterceptor$z(receiver).get$end(receiver);
+    },
+    get$env$x(receiver) {
+      return J.getInterceptor$x(receiver).get$env(receiver);
+    },
+    get$exitCode$x(receiver) {
+      return J.getInterceptor$x(receiver).get$exitCode(receiver);
+    },
+    get$fatalDeprecations$x(receiver) {
+      return J.getInterceptor$x(receiver).get$fatalDeprecations(receiver);
+    },
+    get$fiber$x(receiver) {
+      return J.getInterceptor$x(receiver).get$fiber(receiver);
+    },
+    get$file$x(receiver) {
+      return J.getInterceptor$x(receiver).get$file(receiver);
+    },
+    get$filename$x(receiver) {
+      return J.getInterceptor$x(receiver).get$filename(receiver);
+    },
+    get$first$ax(receiver) {
+      return J.getInterceptor$ax(receiver).get$first(receiver);
+    },
+    get$functions$x(receiver) {
+      return J.getInterceptor$x(receiver).get$functions(receiver);
+    },
+    get$futureDeprecations$x(receiver) {
+      return J.getInterceptor$x(receiver).get$futureDeprecations(receiver);
+    },
+    get$green$x(receiver) {
+      return J.getInterceptor$x(receiver).get$green(receiver);
+    },
+    get$hashCode$(receiver) {
+      return J.getInterceptor$(receiver).get$hashCode(receiver);
+    },
+    get$id$x(receiver) {
+      return J.getInterceptor$x(receiver).get$id(receiver);
+    },
+    get$importer$x(receiver) {
+      return J.getInterceptor$x(receiver).get$importer(receiver);
+    },
+    get$importers$x(receiver) {
+      return J.getInterceptor$x(receiver).get$importers(receiver);
+    },
+    get$isEmpty$asx(receiver) {
+      return J.getInterceptor$asx(receiver).get$isEmpty(receiver);
+    },
+    get$isNotEmpty$asx(receiver) {
+      return J.getInterceptor$asx(receiver).get$isNotEmpty(receiver);
+    },
+    get$isTTY$x(receiver) {
+      return J.getInterceptor$x(receiver).get$isTTY(receiver);
+    },
+    get$iterator$ax(receiver) {
+      return J.getInterceptor$ax(receiver).get$iterator(receiver);
+    },
+    get$keys$z(receiver) {
+      return J.getInterceptor$z(receiver).get$keys(receiver);
+    },
+    get$last$ax(receiver) {
+      return J.getInterceptor$ax(receiver).get$last(receiver);
+    },
+    get$length$asx(receiver) {
+      return J.getInterceptor$asx(receiver).get$length(receiver);
+    },
+    get$loadPaths$x(receiver) {
+      return J.getInterceptor$x(receiver).get$loadPaths(receiver);
+    },
+    get$logger$x(receiver) {
+      return J.getInterceptor$x(receiver).get$logger(receiver);
+    },
+    get$message$x(receiver) {
+      return J.getInterceptor$x(receiver).get$message(receiver);
+    },
+    get$mtime$x(receiver) {
+      return J.getInterceptor$x(receiver).get$mtime(receiver);
+    },
+    get$name$x(receiver) {
+      return J.getInterceptor$x(receiver).get$name(receiver);
+    },
+    get$numeratorUnits$x(receiver) {
+      return J.getInterceptor$x(receiver).get$numeratorUnits(receiver);
+    },
+    get$options$x(receiver) {
+      return J.getInterceptor$x(receiver).get$options(receiver);
+    },
+    get$parent$z(receiver) {
+      return J.getInterceptor$z(receiver).get$parent(receiver);
+    },
+    get$path$x(receiver) {
+      return J.getInterceptor$x(receiver).get$path(receiver);
+    },
+    get$platform$x(receiver) {
+      return J.getInterceptor$x(receiver).get$platform(receiver);
+    },
+    get$quietDeps$x(receiver) {
+      return J.getInterceptor$x(receiver).get$quietDeps(receiver);
+    },
+    get$quotes$x(receiver) {
+      return J.getInterceptor$x(receiver).get$quotes(receiver);
+    },
+    get$red$x(receiver) {
+      return J.getInterceptor$x(receiver).get$red(receiver);
+    },
+    get$release$x(receiver) {
+      return J.getInterceptor$x(receiver).get$release(receiver);
+    },
+    get$reversed$ax(receiver) {
+      return J.getInterceptor$ax(receiver).get$reversed(receiver);
+    },
+    get$runtimeType$(receiver) {
+      return J.getInterceptor$(receiver).get$runtimeType(receiver);
+    },
+    get$separator$x(receiver) {
+      return J.getInterceptor$x(receiver).get$separator(receiver);
+    },
+    get$sign$in(receiver) {
+      if (typeof receiver === "number")
+        return receiver > 0 ? 1 : receiver < 0 ? -1 : receiver;
+      return J.getInterceptor$in(receiver).get$sign(receiver);
+    },
+    get$silenceDeprecations$x(receiver) {
+      return J.getInterceptor$x(receiver).get$silenceDeprecations(receiver);
+    },
+    get$single$ax(receiver) {
+      return J.getInterceptor$ax(receiver).get$single(receiver);
+    },
+    get$sourceMap$x(receiver) {
+      return J.getInterceptor$x(receiver).get$sourceMap(receiver);
+    },
+    get$sourceMapIncludeSources$x(receiver) {
+      return J.getInterceptor$x(receiver).get$sourceMapIncludeSources(receiver);
+    },
+    get$span$z(receiver) {
+      return J.getInterceptor$z(receiver).get$span(receiver);
+    },
+    get$stderr$x(receiver) {
+      return J.getInterceptor$x(receiver).get$stderr(receiver);
+    },
+    get$stdout$x(receiver) {
+      return J.getInterceptor$x(receiver).get$stdout(receiver);
+    },
+    get$style$x(receiver) {
+      return J.getInterceptor$x(receiver).get$style(receiver);
+    },
+    get$syntax$x(receiver) {
+      return J.getInterceptor$x(receiver).get$syntax(receiver);
+    },
+    get$trace$z(receiver) {
+      return J.getInterceptor$z(receiver).get$trace(receiver);
+    },
+    get$url$x(receiver) {
+      return J.getInterceptor$x(receiver).get$url(receiver);
+    },
+    get$verbose$x(receiver) {
+      return J.getInterceptor$x(receiver).get$verbose(receiver);
+    },
+    get$warn$x(receiver) {
+      return J.getInterceptor$x(receiver).get$warn(receiver);
+    },
+    $add$ansx(receiver, a0) {
+      if (typeof receiver == "number" && typeof a0 == "number")
+        return receiver + a0;
+      return J.getInterceptor$ansx(receiver).$add(receiver, a0);
+    },
+    $eq$(receiver, a0) {
+      if (receiver == null)
+        return a0 == null;
+      if (typeof receiver != "object")
+        return a0 != null && receiver === a0;
+      return J.getInterceptor$(receiver).$eq(receiver, a0);
+    },
+    $index$asx(receiver, a0) {
+      if (typeof a0 === "number")
+        if (Array.isArray(receiver) || typeof receiver == "string" || A.isJsIndexable(receiver, receiver[init.dispatchPropertyName]))
+          if (a0 >>> 0 === a0 && a0 < receiver.length)
+            return receiver[a0];
+      return J.getInterceptor$asx(receiver).$index(receiver, a0);
+    },
+    $indexSet$ax(receiver, a0, a1) {
+      if (typeof a0 === "number")
+        if ((Array.isArray(receiver) || A.isJsIndexable(receiver, receiver[init.dispatchPropertyName])) && !receiver.immutable$list && a0 >>> 0 === a0 && a0 < receiver.length)
+          return receiver[a0] = a1;
+      return J.getInterceptor$ax(receiver).$indexSet(receiver, a0, a1);
+    },
+    $set$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).$set$2(receiver, a0, a1);
+    },
+    add$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).add$1(receiver, a0);
+    },
+    addAll$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).addAll$1(receiver, a0);
+    },
+    allMatches$1$s(receiver, a0) {
+      return J.getInterceptor$s(receiver).allMatches$1(receiver, a0);
+    },
+    allMatches$2$s(receiver, a0, a1) {
+      return J.getInterceptor$s(receiver).allMatches$2(receiver, a0, a1);
+    },
+    any$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).any$1(receiver, a0);
+    },
+    apply$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).apply$2(receiver, a0, a1);
+    },
+    asImmutable$0$x(receiver) {
+      return J.getInterceptor$x(receiver).asImmutable$0(receiver);
+    },
+    asMutable$0$x(receiver) {
+      return J.getInterceptor$x(receiver).asMutable$0(receiver);
+    },
+    canonicalize$4$baseImporter$baseUrl$forImport$x(receiver, a0, a1, a2, a3) {
+      return J.getInterceptor$x(receiver).canonicalize$4$baseImporter$baseUrl$forImport(receiver, a0, a1, a2, a3);
+    },
+    cast$1$0$ax(receiver, $T1) {
+      return J.getInterceptor$ax(receiver).cast$1$0(receiver, $T1);
+    },
+    close$0$x(receiver) {
+      return J.getInterceptor$x(receiver).close$0(receiver);
+    },
+    codeUnitAt$1$s(receiver, a0) {
+      return J.getInterceptor$s(receiver).codeUnitAt$1(receiver, a0);
+    },
+    compareTo$1$ns(receiver, a0) {
+      return J.getInterceptor$ns(receiver).compareTo$1(receiver, a0);
+    },
+    contains$1$asx(receiver, a0) {
+      return J.getInterceptor$asx(receiver).contains$1(receiver, a0);
+    },
+    createInterface$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).createInterface$1(receiver, a0);
+    },
+    createRequire$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).createRequire$1(receiver, a0);
+    },
+    elementAt$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).elementAt$1(receiver, a0);
+    },
+    endsWith$1$s(receiver, a0) {
+      return J.getInterceptor$s(receiver).endsWith$1(receiver, a0);
+    },
+    error$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).error$1(receiver, a0);
+    },
+    every$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).every$1(receiver, a0);
+    },
+    existsSync$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).existsSync$1(receiver, a0);
+    },
+    expand$1$1$ax(receiver, a0, $T1) {
+      return J.getInterceptor$ax(receiver).expand$1$1(receiver, a0, $T1);
+    },
+    fillRange$3$ax(receiver, a0, a1, a2) {
+      return J.getInterceptor$ax(receiver).fillRange$3(receiver, a0, a1, a2);
+    },
+    fold$2$ax(receiver, a0, a1) {
+      return J.getInterceptor$ax(receiver).fold$2(receiver, a0, a1);
+    },
+    forEach$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).forEach$1(receiver, a0);
+    },
+    getRange$2$ax(receiver, a0, a1) {
+      return J.getInterceptor$ax(receiver).getRange$2(receiver, a0, a1);
+    },
+    getTime$0$x(receiver) {
+      return J.getInterceptor$x(receiver).getTime$0(receiver);
+    },
+    isDirectory$0$x(receiver) {
+      return J.getInterceptor$x(receiver).isDirectory$0(receiver);
+    },
+    isFile$0$x(receiver) {
+      return J.getInterceptor$x(receiver).isFile$0(receiver);
+    },
+    join$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).join$1(receiver, a0);
+    },
+    listen$1$z(receiver, a0) {
+      return J.getInterceptor$z(receiver).listen$1(receiver, a0);
+    },
+    log$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).log$1(receiver, a0);
+    },
+    map$1$1$ax(receiver, a0, $T1) {
+      return J.getInterceptor$ax(receiver).map$1$1(receiver, a0, $T1);
+    },
+    matchAsPrefix$2$s(receiver, a0, a1) {
+      return J.getInterceptor$s(receiver).matchAsPrefix$2(receiver, a0, a1);
+    },
+    mkdirSync$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).mkdirSync$1(receiver, a0);
+    },
+    noSuchMethod$1$(receiver, a0) {
+      return J.getInterceptor$(receiver).noSuchMethod$1(receiver, a0);
+    },
+    on$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).on$2(receiver, a0, a1);
+    },
+    readFileSync$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).readFileSync$2(receiver, a0, a1);
+    },
+    readdirSync$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).readdirSync$1(receiver, a0);
+    },
+    remove$1$z(receiver, a0) {
+      return J.getInterceptor$z(receiver).remove$1(receiver, a0);
+    },
+    removeRange$2$ax(receiver, a0, a1) {
+      return J.getInterceptor$ax(receiver).removeRange$2(receiver, a0, a1);
+    },
+    replaceFirst$2$s(receiver, a0, a1) {
+      return J.getInterceptor$s(receiver).replaceFirst$2(receiver, a0, a1);
+    },
+    resolve$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).resolve$1(receiver, a0);
+    },
+    run$0$x(receiver) {
+      return J.getInterceptor$x(receiver).run$0(receiver);
+    },
+    run$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).run$1(receiver, a0);
+    },
+    setRange$4$ax(receiver, a0, a1, a2, a3) {
+      return J.getInterceptor$ax(receiver).setRange$4(receiver, a0, a1, a2, a3);
+    },
+    skip$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).skip$1(receiver, a0);
+    },
+    sort$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).sort$1(receiver, a0);
+    },
+    startsWith$1$s(receiver, a0) {
+      return J.getInterceptor$s(receiver).startsWith$1(receiver, a0);
+    },
+    statSync$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).statSync$1(receiver, a0);
+    },
+    sublist$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).sublist$1(receiver, a0);
+    },
+    substring$1$s(receiver, a0) {
+      return J.getInterceptor$s(receiver).substring$1(receiver, a0);
+    },
+    substring$2$s(receiver, a0, a1) {
+      return J.getInterceptor$s(receiver).substring$2(receiver, a0, a1);
+    },
+    take$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).take$1(receiver, a0);
+    },
+    then$1$1$x(receiver, a0, $T1) {
+      return J.getInterceptor$x(receiver).then$1$1(receiver, a0, $T1);
+    },
+    then$1$2$onError$x(receiver, a0, a1, $T1) {
+      return J.getInterceptor$x(receiver).then$1$2$onError(receiver, a0, a1, $T1);
+    },
+    then$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).then$2(receiver, a0, a1);
+    },
+    toArray$0$x(receiver) {
+      return J.getInterceptor$x(receiver).toArray$0(receiver);
+    },
+    toList$0$ax(receiver) {
+      return J.getInterceptor$ax(receiver).toList$0(receiver);
+    },
+    toList$1$growable$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).toList$1$growable(receiver, a0);
+    },
+    toRadixString$1$n(receiver, a0) {
+      return J.getInterceptor$n(receiver).toRadixString$1(receiver, a0);
+    },
+    toSet$0$ax(receiver) {
+      return J.getInterceptor$ax(receiver).toSet$0(receiver);
+    },
+    toString$0$(receiver) {
+      return J.getInterceptor$(receiver).toString$0(receiver);
+    },
+    toString$1$color$(receiver, a0) {
+      return J.getInterceptor$(receiver).toString$1$color(receiver, a0);
+    },
+    trim$0$s(receiver) {
+      return J.getInterceptor$s(receiver).trim$0(receiver);
+    },
+    unlinkSync$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).unlinkSync$1(receiver, a0);
+    },
+    watch$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).watch$2(receiver, a0, a1);
+    },
+    where$1$ax(receiver, a0) {
+      return J.getInterceptor$ax(receiver).where$1(receiver, a0);
+    },
+    write$1$x(receiver, a0) {
+      return J.getInterceptor$x(receiver).write$1(receiver, a0);
+    },
+    writeFileSync$2$x(receiver, a0, a1) {
+      return J.getInterceptor$x(receiver).writeFileSync$2(receiver, a0, a1);
+    },
+    yield$0$x(receiver) {
+      return J.getInterceptor$x(receiver).yield$0(receiver);
+    },
+    Interceptor: function Interceptor() {
+    },
+    JSBool: function JSBool() {
+    },
+    JSNull: function JSNull() {
+    },
+    JavaScriptObject: function JavaScriptObject() {
+    },
+    LegacyJavaScriptObject: function LegacyJavaScriptObject() {
+    },
+    PlainJavaScriptObject: function PlainJavaScriptObject() {
+    },
+    UnknownJavaScriptObject: function UnknownJavaScriptObject() {
+    },
+    JavaScriptFunction: function JavaScriptFunction() {
+    },
+    JavaScriptBigInt: function JavaScriptBigInt() {
+    },
+    JavaScriptSymbol: function JavaScriptSymbol() {
+    },
+    JSArray: function JSArray(t0) {
+      this.$ti = t0;
+    },
+    JSUnmodifiableArray: function JSUnmodifiableArray(t0) {
+      this.$ti = t0;
+    },
+    ArrayIterator: function ArrayIterator(t0, t1, t2) {
+      var _ = this;
+      _._iterable = t0;
+      _._length = t1;
+      _._index = 0;
+      _._current = null;
+      _.$ti = t2;
+    },
+    JSNumber: function JSNumber() {
+    },
+    JSInt: function JSInt() {
+    },
+    JSNumNotInt: function JSNumNotInt() {
+    },
+    JSString: function JSString() {
+    }
+  },
+  A = {JS_CONST: function JS_CONST() {
+    },
+    CastIterable_CastIterable(source, $S, $T) {
+      if ($S._eval$1("EfficientLengthIterable<0>")._is(source))
+        return new A._EfficientLengthCastIterable(source, $S._eval$1("@<0>")._bind$1($T)._eval$1("_EfficientLengthCastIterable<1,2>"));
+      return new A.CastIterable(source, $S._eval$1("@<0>")._bind$1($T)._eval$1("CastIterable<1,2>"));
+    },
+    LateError$localNI(localName) {
+      return new A.LateError("Local '" + localName + "' has not been initialized.");
+    },
+    ReachabilityError$(_message) {
+      return new A.ReachabilityError(_message);
+    },
+    hexDigitValue(char) {
+      var letter,
+        digit = char ^ 48;
+      if (digit <= 9)
+        return digit;
+      letter = char | 32;
+      if (97 <= letter && letter <= 102)
+        return letter - 87;
+      return -1;
+    },
+    SystemHash_combine(hash, value) {
+      hash = hash + value & 536870911;
+      hash = hash + ((hash & 524287) << 10) & 536870911;
+      return hash ^ hash >>> 6;
+    },
+    SystemHash_finish(hash) {
+      hash = hash + ((hash & 67108863) << 3) & 536870911;
+      hash ^= hash >>> 11;
+      return hash + ((hash & 16383) << 15) & 536870911;
+    },
+    checkNotNullable(value, $name, $T) {
+      return value;
+    },
+    isToStringVisiting(object) {
+      var t1, i;
+      for (t1 = $.toStringVisiting.length, i = 0; i < t1; ++i)
+        if (object === $.toStringVisiting[i])
+          return true;
+      return false;
+    },
+    SubListIterable$(_iterable, _start, _endOrLength, $E) {
+      A.RangeError_checkNotNegative(_start, "start");
+      if (_endOrLength != null) {
+        A.RangeError_checkNotNegative(_endOrLength, "end");
+        if (_start > _endOrLength)
+          A.throwExpression(A.RangeError$range(_start, 0, _endOrLength, "start", null));
+      }
+      return new A.SubListIterable(_iterable, _start, _endOrLength, $E._eval$1("SubListIterable<0>"));
+    },
+    MappedIterable_MappedIterable(iterable, $function, $S, $T) {
+      if (type$.EfficientLengthIterable_dynamic._is(iterable))
+        return new A.EfficientLengthMappedIterable(iterable, $function, $S._eval$1("@<0>")._bind$1($T)._eval$1("EfficientLengthMappedIterable<1,2>"));
+      return new A.MappedIterable(iterable, $function, $S._eval$1("@<0>")._bind$1($T)._eval$1("MappedIterable<1,2>"));
+    },
+    TakeIterable_TakeIterable(iterable, takeCount, $E) {
+      var _s9_ = "takeCount";
+      A.ArgumentError_checkNotNull(takeCount, _s9_);
+      A.RangeError_checkNotNegative(takeCount, _s9_);
+      if (type$.EfficientLengthIterable_dynamic._is(iterable))
+        return new A.EfficientLengthTakeIterable(iterable, takeCount, $E._eval$1("EfficientLengthTakeIterable<0>"));
+      return new A.TakeIterable(iterable, takeCount, $E._eval$1("TakeIterable<0>"));
+    },
+    SkipIterable_SkipIterable(iterable, count, $E) {
+      var _s5_ = "count";
+      if (type$.EfficientLengthIterable_dynamic._is(iterable)) {
+        A.ArgumentError_checkNotNull(count, _s5_);
+        A.RangeError_checkNotNegative(count, _s5_);
+        return new A.EfficientLengthSkipIterable(iterable, count, $E._eval$1("EfficientLengthSkipIterable<0>"));
+      }
+      A.ArgumentError_checkNotNull(count, _s5_);
+      A.RangeError_checkNotNegative(count, _s5_);
+      return new A.SkipIterable(iterable, count, $E._eval$1("SkipIterable<0>"));
+    },
+    FollowedByIterable_FollowedByIterable$firstEfficient(first, second, $E) {
+      if ($E._eval$1("EfficientLengthIterable<0>")._is(second))
+        return new A.EfficientLengthFollowedByIterable(first, second, $E._eval$1("EfficientLengthFollowedByIterable<0>"));
+      return new A.FollowedByIterable(first, second, $E._eval$1("FollowedByIterable<0>"));
+    },
+    IterableElementError_noElement() {
+      return new A.StateError("No element");
+    },
+    IterableElementError_tooMany() {
+      return new A.StateError("Too many elements");
+    },
+    IterableElementError_tooFew() {
+      return new A.StateError("Too few elements");
+    },
+    Sort__doSort(a, left, right, compare) {
+      if (right - left <= 32)
+        A.Sort__insertionSort(a, left, right, compare);
+      else
+        A.Sort__dualPivotQuicksort(a, left, right, compare);
+    },
+    Sort__insertionSort(a, left, right, compare) {
+      var i, t1, el, j, j0;
+      for (i = left + 1, t1 = J.getInterceptor$asx(a); i <= right; ++i) {
+        el = t1.$index(a, i);
+        j = i;
+        while (true) {
+          if (!(j > left && compare.call$2(t1.$index(a, j - 1), el) > 0))
+            break;
+          j0 = j - 1;
+          t1.$indexSet(a, j, t1.$index(a, j0));
+          j = j0;
+        }
+        t1.$indexSet(a, j, el);
+      }
+    },
+    Sort__dualPivotQuicksort(a, left, right, compare) {
+      var t0, less, great, pivots_are_equal, k, ak, comp, great0, less0, t2,
+        sixth = B.JSInt_methods._tdivFast$1(right - left + 1, 6),
+        index1 = left + sixth,
+        index5 = right - sixth,
+        index3 = B.JSInt_methods._tdivFast$1(left + right, 2),
+        index2 = index3 - sixth,
+        index4 = index3 + sixth,
+        t1 = J.getInterceptor$asx(a),
+        el1 = t1.$index(a, index1),
+        el2 = t1.$index(a, index2),
+        el3 = t1.$index(a, index3),
+        el4 = t1.$index(a, index4),
+        el5 = t1.$index(a, index5);
+      if (compare.call$2(el1, el2) > 0) {
+        t0 = el2;
+        el2 = el1;
+        el1 = t0;
+      }
+      if (compare.call$2(el4, el5) > 0) {
+        t0 = el5;
+        el5 = el4;
+        el4 = t0;
+      }
+      if (compare.call$2(el1, el3) > 0) {
+        t0 = el3;
+        el3 = el1;
+        el1 = t0;
+      }
+      if (compare.call$2(el2, el3) > 0) {
+        t0 = el3;
+        el3 = el2;
+        el2 = t0;
+      }
+      if (compare.call$2(el1, el4) > 0) {
+        t0 = el4;
+        el4 = el1;
+        el1 = t0;
+      }
+      if (compare.call$2(el3, el4) > 0) {
+        t0 = el4;
+        el4 = el3;
+        el3 = t0;
+      }
+      if (compare.call$2(el2, el5) > 0) {
+        t0 = el5;
+        el5 = el2;
+        el2 = t0;
+      }
+      if (compare.call$2(el2, el3) > 0) {
+        t0 = el3;
+        el3 = el2;
+        el2 = t0;
+      }
+      if (compare.call$2(el4, el5) > 0) {
+        t0 = el5;
+        el5 = el4;
+        el4 = t0;
+      }
+      t1.$indexSet(a, index1, el1);
+      t1.$indexSet(a, index3, el3);
+      t1.$indexSet(a, index5, el5);
+      t1.$indexSet(a, index2, t1.$index(a, left));
+      t1.$indexSet(a, index4, t1.$index(a, right));
+      less = left + 1;
+      great = right - 1;
+      pivots_are_equal = J.$eq$(compare.call$2(el2, el4), 0);
+      if (pivots_are_equal)
+        for (k = less; k <= great; ++k) {
+          ak = t1.$index(a, k);
+          comp = compare.call$2(ak, el2);
+          if (comp === 0)
+            continue;
+          if (comp < 0) {
+            if (k !== less) {
+              t1.$indexSet(a, k, t1.$index(a, less));
+              t1.$indexSet(a, less, ak);
+            }
+            ++less;
+          } else
+            for (; true;) {
+              comp = compare.call$2(t1.$index(a, great), el2);
+              if (comp > 0) {
+                --great;
+                continue;
+              } else {
+                great0 = great - 1;
+                if (comp < 0) {
+                  t1.$indexSet(a, k, t1.$index(a, less));
+                  less0 = less + 1;
+                  t1.$indexSet(a, less, t1.$index(a, great));
+                  t1.$indexSet(a, great, ak);
+                  great = great0;
+                  less = less0;
+                  break;
+                } else {
+                  t1.$indexSet(a, k, t1.$index(a, great));
+                  t1.$indexSet(a, great, ak);
+                  great = great0;
+                  break;
+                }
+              }
+            }
+        }
+      else
+        for (k = less; k <= great; ++k) {
+          ak = t1.$index(a, k);
+          if (compare.call$2(ak, el2) < 0) {
+            if (k !== less) {
+              t1.$indexSet(a, k, t1.$index(a, less));
+              t1.$indexSet(a, less, ak);
+            }
+            ++less;
+          } else if (compare.call$2(ak, el4) > 0)
+            for (; true;)
+              if (compare.call$2(t1.$index(a, great), el4) > 0) {
+                --great;
+                if (great < k)
+                  break;
+                continue;
+              } else {
+                great0 = great - 1;
+                if (compare.call$2(t1.$index(a, great), el2) < 0) {
+                  t1.$indexSet(a, k, t1.$index(a, less));
+                  less0 = less + 1;
+                  t1.$indexSet(a, less, t1.$index(a, great));
+                  t1.$indexSet(a, great, ak);
+                  less = less0;
+                } else {
+                  t1.$indexSet(a, k, t1.$index(a, great));
+                  t1.$indexSet(a, great, ak);
+                }
+                great = great0;
+                break;
+              }
+        }
+      t2 = less - 1;
+      t1.$indexSet(a, left, t1.$index(a, t2));
+      t1.$indexSet(a, t2, el2);
+      t2 = great + 1;
+      t1.$indexSet(a, right, t1.$index(a, t2));
+      t1.$indexSet(a, t2, el4);
+      A.Sort__doSort(a, left, less - 2, compare);
+      A.Sort__doSort(a, great + 2, right, compare);
+      if (pivots_are_equal)
+        return;
+      if (less < index1 && great > index5) {
+        for (; J.$eq$(compare.call$2(t1.$index(a, less), el2), 0);)
+          ++less;
+        for (; J.$eq$(compare.call$2(t1.$index(a, great), el4), 0);)
+          --great;
+        for (k = less; k <= great; ++k) {
+          ak = t1.$index(a, k);
+          if (compare.call$2(ak, el2) === 0) {
+            if (k !== less) {
+              t1.$indexSet(a, k, t1.$index(a, less));
+              t1.$indexSet(a, less, ak);
+            }
+            ++less;
+          } else if (compare.call$2(ak, el4) === 0)
+            for (; true;)
+              if (compare.call$2(t1.$index(a, great), el4) === 0) {
+                --great;
+                if (great < k)
+                  break;
+                continue;
+              } else {
+                great0 = great - 1;
+                if (compare.call$2(t1.$index(a, great), el2) < 0) {
+                  t1.$indexSet(a, k, t1.$index(a, less));
+                  less0 = less + 1;
+                  t1.$indexSet(a, less, t1.$index(a, great));
+                  t1.$indexSet(a, great, ak);
+                  less = less0;
+                } else {
+                  t1.$indexSet(a, k, t1.$index(a, great));
+                  t1.$indexSet(a, great, ak);
+                }
+                great = great0;
+                break;
+              }
+        }
+        A.Sort__doSort(a, less, great, compare);
+      } else
+        A.Sort__doSort(a, less, great, compare);
+    },
+    _CastIterableBase: function _CastIterableBase() {
+    },
+    CastIterator: function CastIterator(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    CastIterable: function CastIterable(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    _EfficientLengthCastIterable: function _EfficientLengthCastIterable(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    _CastListBase: function _CastListBase() {
+    },
+    _CastListBase_sort_closure: function _CastListBase_sort_closure(t0, t1) {
+      this.$this = t0;
+      this.compare = t1;
+    },
+    CastList: function CastList(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    CastSet: function CastSet(t0, t1, t2) {
+      this._source = t0;
+      this._emptySet = t1;
+      this.$ti = t2;
+    },
+    CastMap: function CastMap(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    CastMap_forEach_closure: function CastMap_forEach_closure(t0, t1) {
+      this.$this = t0;
+      this.f = t1;
+    },
+    CastMap_entries_closure: function CastMap_entries_closure(t0) {
+      this.$this = t0;
+    },
+    LateError: function LateError(t0) {
+      this._message = t0;
+    },
+    ReachabilityError: function ReachabilityError(t0) {
+      this._message = t0;
+    },
+    CodeUnits: function CodeUnits(t0) {
+      this._string = t0;
+    },
+    nullFuture_closure: function nullFuture_closure() {
+    },
+    SentinelValue: function SentinelValue() {
+    },
+    EfficientLengthIterable: function EfficientLengthIterable() {
+    },
+    ListIterable: function ListIterable() {
+    },
+    SubListIterable: function SubListIterable(t0, t1, t2, t3) {
+      var _ = this;
+      _.__internal$_iterable = t0;
+      _._start = t1;
+      _._endOrLength = t2;
+      _.$ti = t3;
+    },
+    ListIterator: function ListIterator(t0, t1, t2) {
+      var _ = this;
+      _.__internal$_iterable = t0;
+      _.__internal$_length = t1;
+      _.__internal$_index = 0;
+      _.__internal$_current = null;
+      _.$ti = t2;
+    },
+    MappedIterable: function MappedIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._f = t1;
+      this.$ti = t2;
+    },
+    EfficientLengthMappedIterable: function EfficientLengthMappedIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._f = t1;
+      this.$ti = t2;
+    },
+    MappedIterator: function MappedIterator(t0, t1, t2) {
+      var _ = this;
+      _.__internal$_current = null;
+      _._iterator = t0;
+      _._f = t1;
+      _.$ti = t2;
+    },
+    MappedListIterable: function MappedListIterable(t0, t1, t2) {
+      this._source = t0;
+      this._f = t1;
+      this.$ti = t2;
+    },
+    WhereIterable: function WhereIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._f = t1;
+      this.$ti = t2;
+    },
+    WhereIterator: function WhereIterator(t0, t1) {
+      this._iterator = t0;
+      this._f = t1;
+    },
+    ExpandIterable: function ExpandIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._f = t1;
+      this.$ti = t2;
+    },
+    ExpandIterator: function ExpandIterator(t0, t1, t2, t3) {
+      var _ = this;
+      _._iterator = t0;
+      _._f = t1;
+      _._currentExpansion = t2;
+      _.__internal$_current = null;
+      _.$ti = t3;
+    },
+    TakeIterable: function TakeIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._takeCount = t1;
+      this.$ti = t2;
+    },
+    EfficientLengthTakeIterable: function EfficientLengthTakeIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._takeCount = t1;
+      this.$ti = t2;
+    },
+    TakeIterator: function TakeIterator(t0, t1, t2) {
+      this._iterator = t0;
+      this._remaining = t1;
+      this.$ti = t2;
+    },
+    SkipIterable: function SkipIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._skipCount = t1;
+      this.$ti = t2;
+    },
+    EfficientLengthSkipIterable: function EfficientLengthSkipIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._skipCount = t1;
+      this.$ti = t2;
+    },
+    SkipIterator: function SkipIterator(t0, t1) {
+      this._iterator = t0;
+      this._skipCount = t1;
+    },
+    SkipWhileIterable: function SkipWhileIterable(t0, t1, t2) {
+      this.__internal$_iterable = t0;
+      this._f = t1;
+      this.$ti = t2;
+    },
+    SkipWhileIterator: function SkipWhileIterator(t0, t1) {
+      this._iterator = t0;
+      this._f = t1;
+      this._hasSkipped = false;
+    },
+    EmptyIterable: function EmptyIterable(t0) {
+      this.$ti = t0;
+    },
+    EmptyIterator: function EmptyIterator() {
+    },
+    FollowedByIterable: function FollowedByIterable(t0, t1, t2) {
+      this.__internal$_first = t0;
+      this._second = t1;
+      this.$ti = t2;
+    },
+    EfficientLengthFollowedByIterable: function EfficientLengthFollowedByIterable(t0, t1, t2) {
+      this.__internal$_first = t0;
+      this._second = t1;
+      this.$ti = t2;
+    },
+    FollowedByIterator: function FollowedByIterator(t0, t1) {
+      this._currentIterator = t0;
+      this._nextIterable = t1;
+    },
+    WhereTypeIterable: function WhereTypeIterable(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    WhereTypeIterator: function WhereTypeIterator(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    FixedLengthListMixin: function FixedLengthListMixin() {
+    },
+    UnmodifiableListMixin: function UnmodifiableListMixin() {
+    },
+    UnmodifiableListBase: function UnmodifiableListBase() {
+    },
+    ReversedListIterable: function ReversedListIterable(t0, t1) {
+      this._source = t0;
+      this.$ti = t1;
+    },
+    Symbol: function Symbol(t0) {
+      this.__internal$_name = t0;
+    },
+    __CastListBase__CastIterableBase_ListMixin: function __CastListBase__CastIterableBase_ListMixin() {
+    },
+    ConstantMap_ConstantMap$from(other, $K, $V) {
+      var allStrings, k, object, index, index0, map,
+        keys = A.List_List$from(other.get$keys(other), true, $K),
+        t1 = keys.length,
+        _i = 0;
+      while (true) {
+        if (!(_i < t1)) {
+          allStrings = true;
+          break;
+        }
+        k = keys[_i];
+        if (typeof k != "string" || "__proto__" === k) {
+          allStrings = false;
+          break;
+        }
+        ++_i;
+      }
+      if (allStrings) {
+        object = {};
+        for (index = 0, _i = 0; _i < keys.length; keys.length === t1 || (0, A.throwConcurrentModificationError)(keys), ++_i, index = index0) {
+          k = keys[_i];
+          other.$index(0, k);
+          index0 = index + 1;
+          object[k] = index;
+        }
+        map = new A.ConstantStringMap(object, A.List_List$from(other.get$values(other), true, $V), $K._eval$1("@<0>")._bind$1($V)._eval$1("ConstantStringMap<1,2>"));
+        map.$keys = keys;
+        return map;
+      }
+      return new A.ConstantMapView(A.LinkedHashMap_LinkedHashMap$from(other, $K, $V), $K._eval$1("@<0>")._bind$1($V)._eval$1("ConstantMapView<1,2>"));
+    },
+    ConstantMap__throwUnmodifiable() {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify unmodifiable Map"));
+    },
+    ConstantSet__throwUnmodifiable() {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify constant Set"));
+    },
+    instantiate1(f, T1) {
+      var t1 = new A.Instantiation1(f, T1._eval$1("Instantiation1<0>"));
+      t1.Instantiation$1(f);
+      return t1;
+    },
+    unminifyOrTag(rawClassName) {
+      var preserved = init.mangledGlobalNames[rawClassName];
+      if (preserved != null)
+        return preserved;
+      return rawClassName;
+    },
+    isJsIndexable(object, record) {
+      var result;
+      if (record != null) {
+        result = record.x;
+        if (result != null)
+          return result;
+      }
+      return type$.JavaScriptIndexingBehavior_dynamic._is(object);
+    },
+    S(value) {
+      var result;
+      if (typeof value == "string")
+        return value;
+      if (typeof value == "number") {
+        if (value !== 0)
+          return "" + value;
+      } else if (true === value)
+        return "true";
+      else if (false === value)
+        return "false";
+      else if (value == null)
+        return "null";
+      result = J.toString$0$(value);
+      return result;
+    },
+    JSInvocationMirror$(_memberName, _internalName, _kind, _arguments, _namedArgumentNames, _typeArgumentCount) {
+      return new A.JSInvocationMirror(_memberName, _kind, _arguments, _namedArgumentNames, _typeArgumentCount);
+    },
+    Primitives_objectHashCode(object) {
+      var hash,
+        property = $.Primitives__identityHashCodeProperty;
+      if (property == null)
+        property = $.Primitives__identityHashCodeProperty = Symbol("identityHashCode");
+      hash = object[property];
+      if (hash == null) {
+        hash = Math.random() * 0x3fffffff | 0;
+        object[property] = hash;
+      }
+      return hash;
+    },
+    Primitives_parseInt(source, radix) {
+      var decimalMatch, maxCharCode, digitsPart, t1, i, _null = null,
+        match = /^\s*[+-]?((0x[a-f0-9]+)|(\d+)|([a-z0-9]+))\s*$/i.exec(source);
+      if (match == null)
+        return _null;
+      decimalMatch = match[3];
+      if (radix == null) {
+        if (decimalMatch != null)
+          return parseInt(source, 10);
+        if (match[2] != null)
+          return parseInt(source, 16);
+        return _null;
+      }
+      if (radix < 2 || radix > 36)
+        throw A.wrapException(A.RangeError$range(radix, 2, 36, "radix", _null));
+      if (radix === 10 && decimalMatch != null)
+        return parseInt(source, 10);
+      if (radix < 10 || decimalMatch == null) {
+        maxCharCode = radix <= 10 ? 47 + radix : 86 + radix;
+        digitsPart = match[1];
+        for (t1 = digitsPart.length, i = 0; i < t1; ++i)
+          if ((digitsPart.charCodeAt(i) | 32) > maxCharCode)
+            return _null;
+      }
+      return parseInt(source, radix);
+    },
+    Primitives_parseDouble(source) {
+      var result, trimmed;
+      if (!/^\s*[+-]?(?:Infinity|NaN|(?:\.\d+|\d+(?:\.\d*)?)(?:[eE][+-]?\d+)?)\s*$/.test(source))
+        return null;
+      result = parseFloat(source);
+      if (isNaN(result)) {
+        trimmed = B.JSString_methods.trim$0(source);
+        if (trimmed === "NaN" || trimmed === "+NaN" || trimmed === "-NaN")
+          return result;
+        return null;
+      }
+      return result;
+    },
+    Primitives_objectTypeName(object) {
+      return A.Primitives__objectTypeNameNewRti(object);
+    },
+    Primitives__objectTypeNameNewRti(object) {
+      var interceptor, dispatchName, $constructor, constructorName;
+      if (object instanceof A.Object)
+        return A._rtiToString(A.instanceType(object), null);
+      interceptor = J.getInterceptor$(object);
+      if (interceptor === B.Interceptor_methods || interceptor === B.JavaScriptObject_methods || type$.UnknownJavaScriptObject._is(object)) {
+        dispatchName = B.C_JS_CONST(object);
+        if (dispatchName !== "Object" && dispatchName !== "")
+          return dispatchName;
+        $constructor = object.constructor;
+        if (typeof $constructor == "function") {
+          constructorName = $constructor.name;
+          if (typeof constructorName == "string" && constructorName !== "Object" && constructorName !== "")
+            return constructorName;
+        }
+      }
+      return A._rtiToString(A.instanceType(object), null);
+    },
+    Primitives_safeToString(object) {
+      if (object == null || typeof object == "number" || A._isBool(object))
+        return J.toString$0$(object);
+      if (typeof object == "string")
+        return JSON.stringify(object);
+      if (object instanceof A.Closure)
+        return object.toString$0(0);
+      if (object instanceof A._Record)
+        return object._toString$1(true);
+      return "Instance of '" + A.Primitives_objectTypeName(object) + "'";
+    },
+    Primitives_currentUri() {
+      if (!!self.location)
+        return self.location.href;
+      return null;
+    },
+    Primitives__fromCharCodeApply(array) {
+      var result, i, i0, chunkEnd,
+        end = array.length;
+      if (end <= 500)
+        return String.fromCharCode.apply(null, array);
+      for (result = "", i = 0; i < end; i = i0) {
+        i0 = i + 500;
+        chunkEnd = i0 < end ? i0 : end;
+        result += String.fromCharCode.apply(null, array.slice(i, chunkEnd));
+      }
+      return result;
+    },
+    Primitives_stringFromCodePoints(codePoints) {
+      var t1, _i, i,
+        a = A._setArrayType([], type$.JSArray_int);
+      for (t1 = codePoints.length, _i = 0; _i < codePoints.length; codePoints.length === t1 || (0, A.throwConcurrentModificationError)(codePoints), ++_i) {
+        i = codePoints[_i];
+        if (!A._isInt(i))
+          throw A.wrapException(A.argumentErrorValue(i));
+        if (i <= 65535)
+          a.push(i);
+        else if (i <= 1114111) {
+          a.push(55296 + (B.JSInt_methods._shrOtherPositive$1(i - 65536, 10) & 1023));
+          a.push(56320 + (i & 1023));
+        } else
+          throw A.wrapException(A.argumentErrorValue(i));
+      }
+      return A.Primitives__fromCharCodeApply(a);
+    },
+    Primitives_stringFromCharCodes(charCodes) {
+      var t1, _i, i;
+      for (t1 = charCodes.length, _i = 0; _i < t1; ++_i) {
+        i = charCodes[_i];
+        if (!A._isInt(i))
+          throw A.wrapException(A.argumentErrorValue(i));
+        if (i < 0)
+          throw A.wrapException(A.argumentErrorValue(i));
+        if (i > 65535)
+          return A.Primitives_stringFromCodePoints(charCodes);
+      }
+      return A.Primitives__fromCharCodeApply(charCodes);
+    },
+    Primitives_stringFromNativeUint8List(charCodes, start, end) {
+      var i, result, i0, chunkEnd;
+      if (end <= 500 && start === 0 && end === charCodes.length)
+        return String.fromCharCode.apply(null, charCodes);
+      for (i = start, result = ""; i < end; i = i0) {
+        i0 = i + 500;
+        chunkEnd = i0 < end ? i0 : end;
+        result += String.fromCharCode.apply(null, charCodes.subarray(i, chunkEnd));
+      }
+      return result;
+    },
+    Primitives_stringFromCharCode(charCode) {
+      var bits;
+      if (0 <= charCode) {
+        if (charCode <= 65535)
+          return String.fromCharCode(charCode);
+        if (charCode <= 1114111) {
+          bits = charCode - 65536;
+          return String.fromCharCode((B.JSInt_methods._shrOtherPositive$1(bits, 10) | 55296) >>> 0, bits & 1023 | 56320);
+        }
+      }
+      throw A.wrapException(A.RangeError$range(charCode, 0, 1114111, null, null));
+    },
+    Primitives_lazyAsJsDate(receiver) {
+      if (receiver.date === void 0)
+        receiver.date = new Date(receiver._value);
+      return receiver.date;
+    },
+    Primitives_getYear(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getFullYear() + 0;
+      return t1;
+    },
+    Primitives_getMonth(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getMonth() + 1;
+      return t1;
+    },
+    Primitives_getDay(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getDate() + 0;
+      return t1;
+    },
+    Primitives_getHours(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getHours() + 0;
+      return t1;
+    },
+    Primitives_getMinutes(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getMinutes() + 0;
+      return t1;
+    },
+    Primitives_getSeconds(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getSeconds() + 0;
+      return t1;
+    },
+    Primitives_getMilliseconds(receiver) {
+      var t1 = A.Primitives_lazyAsJsDate(receiver).getMilliseconds() + 0;
+      return t1;
+    },
+    Primitives_functionNoSuchMethod($function, positionalArguments, namedArguments) {
+      var $arguments, namedArgumentList, t1 = {};
+      t1.argumentCount = 0;
+      $arguments = [];
+      namedArgumentList = [];
+      t1.argumentCount = positionalArguments.length;
+      B.JSArray_methods.addAll$1($arguments, positionalArguments);
+      t1.names = "";
+      if (namedArguments != null && namedArguments.__js_helper$_length !== 0)
+        namedArguments.forEach$1(0, new A.Primitives_functionNoSuchMethod_closure(t1, namedArgumentList, $arguments));
+      return J.noSuchMethod$1$($function, new A.JSInvocationMirror(B.Symbol_call, 0, $arguments, namedArgumentList, 0));
+    },
+    Primitives_applyFunction($function, positionalArguments, namedArguments) {
+      var t1, argumentCount, jsStub;
+      if (Array.isArray(positionalArguments))
+        t1 = namedArguments == null || namedArguments.__js_helper$_length === 0;
+      else
+        t1 = false;
+      if (t1) {
+        argumentCount = positionalArguments.length;
+        if (argumentCount === 0) {
+          if (!!$function.call$0)
+            return $function.call$0();
+        } else if (argumentCount === 1) {
+          if (!!$function.call$1)
+            return $function.call$1(positionalArguments[0]);
+        } else if (argumentCount === 2) {
+          if (!!$function.call$2)
+            return $function.call$2(positionalArguments[0], positionalArguments[1]);
+        } else if (argumentCount === 3) {
+          if (!!$function.call$3)
+            return $function.call$3(positionalArguments[0], positionalArguments[1], positionalArguments[2]);
+        } else if (argumentCount === 4) {
+          if (!!$function.call$4)
+            return $function.call$4(positionalArguments[0], positionalArguments[1], positionalArguments[2], positionalArguments[3]);
+        } else if (argumentCount === 5)
+          if (!!$function.call$5)
+            return $function.call$5(positionalArguments[0], positionalArguments[1], positionalArguments[2], positionalArguments[3], positionalArguments[4]);
+        jsStub = $function["call" + "$" + argumentCount];
+        if (jsStub != null)
+          return jsStub.apply($function, positionalArguments);
+      }
+      return A.Primitives__generalApplyFunction($function, positionalArguments, namedArguments);
+    },
+    Primitives__generalApplyFunction($function, positionalArguments, namedArguments) {
+      var defaultValuesClosure, t1, defaultValues, interceptor, jsFunction, maxArguments, missingDefaults, keys, _i, defaultValue, used, t2,
+        $arguments = Array.isArray(positionalArguments) ? positionalArguments : A.List_List$of(positionalArguments, true, type$.dynamic),
+        argumentCount = $arguments.length,
+        requiredParameterCount = $function.$requiredArgCount;
+      if (argumentCount < requiredParameterCount)
+        return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+      defaultValuesClosure = $function.$defaultValues;
+      t1 = defaultValuesClosure == null;
+      defaultValues = !t1 ? defaultValuesClosure() : null;
+      interceptor = J.getInterceptor$($function);
+      jsFunction = interceptor["call*"];
+      if (typeof jsFunction == "string")
+        jsFunction = interceptor[jsFunction];
+      if (t1) {
+        if (namedArguments != null && namedArguments.__js_helper$_length !== 0)
+          return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+        if (argumentCount === requiredParameterCount)
+          return jsFunction.apply($function, $arguments);
+        return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+      }
+      if (Array.isArray(defaultValues)) {
+        if (namedArguments != null && namedArguments.__js_helper$_length !== 0)
+          return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+        maxArguments = requiredParameterCount + defaultValues.length;
+        if (argumentCount > maxArguments)
+          return A.Primitives_functionNoSuchMethod($function, $arguments, null);
+        if (argumentCount < maxArguments) {
+          missingDefaults = defaultValues.slice(argumentCount - requiredParameterCount);
+          if ($arguments === positionalArguments)
+            $arguments = A.List_List$of($arguments, true, type$.dynamic);
+          B.JSArray_methods.addAll$1($arguments, missingDefaults);
+        }
+        return jsFunction.apply($function, $arguments);
+      } else {
+        if (argumentCount > requiredParameterCount)
+          return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+        if ($arguments === positionalArguments)
+          $arguments = A.List_List$of($arguments, true, type$.dynamic);
+        keys = Object.keys(defaultValues);
+        if (namedArguments == null)
+          for (t1 = keys.length, _i = 0; _i < keys.length; keys.length === t1 || (0, A.throwConcurrentModificationError)(keys), ++_i) {
+            defaultValue = defaultValues[keys[_i]];
+            if (B.C__Required === defaultValue)
+              return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+            B.JSArray_methods.add$1($arguments, defaultValue);
+          }
+        else {
+          for (t1 = keys.length, used = 0, _i = 0; _i < keys.length; keys.length === t1 || (0, A.throwConcurrentModificationError)(keys), ++_i) {
+            t2 = keys[_i];
+            if (namedArguments.containsKey$1(t2)) {
+              ++used;
+              B.JSArray_methods.add$1($arguments, namedArguments.$index(0, t2));
+            } else {
+              defaultValue = defaultValues[t2];
+              if (B.C__Required === defaultValue)
+                return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+              B.JSArray_methods.add$1($arguments, defaultValue);
+            }
+          }
+          if (used !== namedArguments.__js_helper$_length)
+            return A.Primitives_functionNoSuchMethod($function, $arguments, namedArguments);
+        }
+        return jsFunction.apply($function, $arguments);
+      }
+    },
+    Primitives_extractStackTrace(error) {
+      var jsError = error.$thrownJsError;
+      if (jsError == null)
+        return null;
+      return A.getTraceFromException(jsError);
+    },
+    diagnoseIndexError(indexable, index) {
+      var $length, _s5_ = "index";
+      if (!A._isInt(index))
+        return new A.ArgumentError(true, index, _s5_, null);
+      $length = J.get$length$asx(indexable);
+      if (index < 0 || index >= $length)
+        return A.IndexError$withLength(index, $length, indexable, null, _s5_);
+      return A.RangeError$value(index, _s5_, null);
+    },
+    diagnoseRangeError(start, end, $length) {
+      if (start < 0 || start > $length)
+        return A.RangeError$range(start, 0, $length, "start", null);
+      if (end != null)
+        if (end < start || end > $length)
+          return A.RangeError$range(end, start, $length, "end", null);
+      return new A.ArgumentError(true, end, "end", null);
+    },
+    argumentErrorValue(object) {
+      return new A.ArgumentError(true, object, null, null);
+    },
+    checkNum(value) {
+      return value;
+    },
+    wrapException(ex) {
+      return A.initializeExceptionWrapper(new Error(), ex);
+    },
+    initializeExceptionWrapper(wrapper, ex) {
+      var t1;
+      if (ex == null)
+        ex = new A.TypeError();
+      wrapper.dartException = ex;
+      t1 = A.toStringWrapper;
+      if ("defineProperty" in Object) {
+        Object.defineProperty(wrapper, "message", {get: t1});
+        wrapper.name = "";
+      } else
+        wrapper.toString = t1;
+      return wrapper;
+    },
+    toStringWrapper() {
+      return J.toString$0$(this.dartException);
+    },
+    throwExpression(ex) {
+      throw A.wrapException(ex);
+    },
+    throwExpressionWithWrapper(ex, wrapper) {
+      throw A.initializeExceptionWrapper(wrapper, ex);
+    },
+    throwConcurrentModificationError(collection) {
+      throw A.wrapException(A.ConcurrentModificationError$(collection));
+    },
+    TypeErrorDecoder_extractPattern(message) {
+      var match, $arguments, argumentsExpr, expr, method, receiver;
+      message = A.quoteStringForRegExp(message.replace(String({}), "$receiver$"));
+      match = message.match(/\\\$[a-zA-Z]+\\\$/g);
+      if (match == null)
+        match = A._setArrayType([], type$.JSArray_String);
+      $arguments = match.indexOf("\\$arguments\\$");
+      argumentsExpr = match.indexOf("\\$argumentsExpr\\$");
+      expr = match.indexOf("\\$expr\\$");
+      method = match.indexOf("\\$method\\$");
+      receiver = match.indexOf("\\$receiver\\$");
+      return new A.TypeErrorDecoder(message.replace(new RegExp("\\\\\\$arguments\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$argumentsExpr\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$expr\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$method\\\\\\$", "g"), "((?:x|[^x])*)").replace(new RegExp("\\\\\\$receiver\\\\\\$", "g"), "((?:x|[^x])*)"), $arguments, argumentsExpr, expr, method, receiver);
+    },
+    TypeErrorDecoder_provokeCallErrorOn(expression) {
+      return function($expr$) {
+        var $argumentsExpr$ = "$arguments$";
+        try {
+          $expr$.$method$($argumentsExpr$);
+        } catch (e) {
+          return e.message;
+        }
+      }(expression);
+    },
+    TypeErrorDecoder_provokePropertyErrorOn(expression) {
+      return function($expr$) {
+        try {
+          $expr$.$method$;
+        } catch (e) {
+          return e.message;
+        }
+      }(expression);
+    },
+    JsNoSuchMethodError$(_message, match) {
+      var t1 = match == null,
+        t2 = t1 ? null : match.method;
+      return new A.JsNoSuchMethodError(_message, t2, t1 ? null : match.receiver);
+    },
+    unwrapException(ex) {
+      if (ex == null)
+        return new A.NullThrownFromJavaScriptException(ex);
+      if (ex instanceof A.ExceptionAndStackTrace)
+        return A.saveStackTrace(ex, ex.dartException);
+      if (typeof ex !== "object")
+        return ex;
+      if ("dartException" in ex)
+        return A.saveStackTrace(ex, ex.dartException);
+      return A._unwrapNonDartException(ex);
+    },
+    saveStackTrace(ex, error) {
+      if (type$.Error._is(error))
+        if (error.$thrownJsError == null)
+          error.$thrownJsError = ex;
+      return error;
+    },
+    _unwrapNonDartException(ex) {
+      var message, number, ieErrorCode, nsme, notClosure, nullCall, nullLiteralCall, undefCall, undefLiteralCall, nullProperty, undefProperty, undefLiteralProperty, match;
+      if (!("message" in ex))
+        return ex;
+      message = ex.message;
+      if ("number" in ex && typeof ex.number == "number") {
+        number = ex.number;
+        ieErrorCode = number & 65535;
+        if ((B.JSInt_methods._shrOtherPositive$1(number, 16) & 8191) === 10)
+          switch (ieErrorCode) {
+            case 438:
+              return A.saveStackTrace(ex, A.JsNoSuchMethodError$(A.S(message) + " (Error " + ieErrorCode + ")", null));
+            case 445:
+            case 5007:
+              A.S(message);
+              return A.saveStackTrace(ex, new A.NullError());
+          }
+      }
+      if (ex instanceof TypeError) {
+        nsme = $.$get$TypeErrorDecoder_noSuchMethodPattern();
+        notClosure = $.$get$TypeErrorDecoder_notClosurePattern();
+        nullCall = $.$get$TypeErrorDecoder_nullCallPattern();
+        nullLiteralCall = $.$get$TypeErrorDecoder_nullLiteralCallPattern();
+        undefCall = $.$get$TypeErrorDecoder_undefinedCallPattern();
+        undefLiteralCall = $.$get$TypeErrorDecoder_undefinedLiteralCallPattern();
+        nullProperty = $.$get$TypeErrorDecoder_nullPropertyPattern();
+        $.$get$TypeErrorDecoder_nullLiteralPropertyPattern();
+        undefProperty = $.$get$TypeErrorDecoder_undefinedPropertyPattern();
+        undefLiteralProperty = $.$get$TypeErrorDecoder_undefinedLiteralPropertyPattern();
+        match = nsme.matchTypeError$1(message);
+        if (match != null)
+          return A.saveStackTrace(ex, A.JsNoSuchMethodError$(message, match));
+        else {
+          match = notClosure.matchTypeError$1(message);
+          if (match != null) {
+            match.method = "call";
+            return A.saveStackTrace(ex, A.JsNoSuchMethodError$(message, match));
+          } else if (nullCall.matchTypeError$1(message) != null || nullLiteralCall.matchTypeError$1(message) != null || undefCall.matchTypeError$1(message) != null || undefLiteralCall.matchTypeError$1(message) != null || nullProperty.matchTypeError$1(message) != null || nullLiteralCall.matchTypeError$1(message) != null || undefProperty.matchTypeError$1(message) != null || undefLiteralProperty.matchTypeError$1(message) != null)
+            return A.saveStackTrace(ex, new A.NullError());
+        }
+        return A.saveStackTrace(ex, new A.UnknownJsTypeError(typeof message == "string" ? message : ""));
+      }
+      if (ex instanceof RangeError) {
+        if (typeof message == "string" && message.indexOf("call stack") !== -1)
+          return new A.StackOverflowError();
+        message = function(ex) {
+          try {
+            return String(ex);
+          } catch (e) {
+          }
+          return null;
+        }(ex);
+        return A.saveStackTrace(ex, new A.ArgumentError(false, null, null, typeof message == "string" ? message.replace(/^RangeError:\s*/, "") : message));
+      }
+      if (typeof InternalError == "function" && ex instanceof InternalError)
+        if (typeof message == "string" && message === "too much recursion")
+          return new A.StackOverflowError();
+      return ex;
+    },
+    getTraceFromException(exception) {
+      var trace;
+      if (exception instanceof A.ExceptionAndStackTrace)
+        return exception.stackTrace;
+      if (exception == null)
+        return new A._StackTrace(exception);
+      trace = exception.$cachedTrace;
+      if (trace != null)
+        return trace;
+      trace = new A._StackTrace(exception);
+      if (typeof exception === "object")
+        exception.$cachedTrace = trace;
+      return trace;
+    },
+    objectHashCode(object) {
+      if (object == null)
+        return J.get$hashCode$(object);
+      if (typeof object == "object")
+        return A.Primitives_objectHashCode(object);
+      return J.get$hashCode$(object);
+    },
+    constantHashCode(key) {
+      if (typeof key == "number")
+        return B.JSNumber_methods.get$hashCode(key);
+      if (key instanceof A._Type)
+        return A.Primitives_objectHashCode(key);
+      if (key instanceof A._Record)
+        return key.get$hashCode(key);
+      if (key instanceof A.Symbol)
+        return key.get$hashCode(0);
+      return A.objectHashCode(key);
+    },
+    fillLiteralMap(keyValuePairs, result) {
+      var index, index0, index1,
+        $length = keyValuePairs.length;
+      for (index = 0; index < $length; index = index1) {
+        index0 = index + 1;
+        index1 = index0 + 1;
+        result.$indexSet(0, keyValuePairs[index], keyValuePairs[index0]);
+      }
+      return result;
+    },
+    fillLiteralSet(values, result) {
+      var index,
+        $length = values.length;
+      for (index = 0; index < $length; ++index)
+        result.add$1(0, values[index]);
+      return result;
+    },
+    _invokeClosure(closure, numberOfArguments, arg1, arg2, arg3, arg4) {
+      switch (numberOfArguments) {
+        case 0:
+          return closure.call$0();
+        case 1:
+          return closure.call$1(arg1);
+        case 2:
+          return closure.call$2(arg1, arg2);
+        case 3:
+          return closure.call$3(arg1, arg2, arg3);
+        case 4:
+          return closure.call$4(arg1, arg2, arg3, arg4);
+      }
+      throw A.wrapException(new A._Exception("Unsupported number of arguments for wrapped closure"));
+    },
+    convertDartClosureToJS(closure, arity) {
+      var $function;
+      if (closure == null)
+        return null;
+      $function = closure.$identity;
+      if (!!$function)
+        return $function;
+      $function = A.convertDartClosureToJSUncached(closure, arity);
+      closure.$identity = $function;
+      return $function;
+    },
+    convertDartClosureToJSUncached(closure, arity) {
+      var entry;
+      switch (arity) {
+        case 0:
+          entry = closure.call$0;
+          break;
+        case 1:
+          entry = closure.call$1;
+          break;
+        case 2:
+          entry = closure.call$2;
+          break;
+        case 3:
+          entry = closure.call$3;
+          break;
+        case 4:
+          entry = closure.call$4;
+          break;
+        default:
+          entry = null;
+      }
+      if (entry != null)
+        return entry.bind(closure);
+      return function(closure, arity, invoke) {
+        return function(a1, a2, a3, a4) {
+          return invoke(closure, arity, a1, a2, a3, a4);
+        };
+      }(closure, arity, A._invokeClosure);
+    },
+    Closure_fromTearOff(parameters) {
+      var $prototype, $constructor, t2, trampoline, applyTrampoline, i, stub, stub0, stubName, stubCallName,
+        container = parameters.co,
+        isStatic = parameters.iS,
+        isIntercepted = parameters.iI,
+        needsDirectAccess = parameters.nDA,
+        applyTrampolineIndex = parameters.aI,
+        funsOrNames = parameters.fs,
+        callNames = parameters.cs,
+        $name = funsOrNames[0],
+        callName = callNames[0],
+        $function = container[$name],
+        t1 = parameters.fT;
+      t1.toString;
+      $prototype = isStatic ? Object.create(new A.StaticClosure().constructor.prototype) : Object.create(new A.BoundClosure(null, null).constructor.prototype);
+      $prototype.$initialize = $prototype.constructor;
+      $constructor = isStatic ? function static_tear_off() {
+        this.$initialize();
+      } : function tear_off(a, b) {
+        this.$initialize(a, b);
+      };
+      $prototype.constructor = $constructor;
+      $constructor.prototype = $prototype;
+      $prototype.$_name = $name;
+      $prototype.$_target = $function;
+      t2 = !isStatic;
+      if (t2)
+        trampoline = A.Closure_forwardCallTo($name, $function, isIntercepted, needsDirectAccess);
+      else {
+        $prototype.$static_name = $name;
+        trampoline = $function;
+      }
+      $prototype.$signature = A.Closure__computeSignatureFunctionNewRti(t1, isStatic, isIntercepted);
+      $prototype[callName] = trampoline;
+      for (applyTrampoline = trampoline, i = 1; i < funsOrNames.length; ++i) {
+        stub = funsOrNames[i];
+        if (typeof stub == "string") {
+          stub0 = container[stub];
+          stubName = stub;
+          stub = stub0;
+        } else
+          stubName = "";
+        stubCallName = callNames[i];
+        if (stubCallName != null) {
+          if (t2)
+            stub = A.Closure_forwardCallTo(stubName, stub, isIntercepted, needsDirectAccess);
+          $prototype[stubCallName] = stub;
+        }
+        if (i === applyTrampolineIndex)
+          applyTrampoline = stub;
+      }
+      $prototype["call*"] = applyTrampoline;
+      $prototype.$requiredArgCount = parameters.rC;
+      $prototype.$defaultValues = parameters.dV;
+      return $constructor;
+    },
+    Closure__computeSignatureFunctionNewRti(functionType, isStatic, isIntercepted) {
+      if (typeof functionType == "number")
+        return functionType;
+      if (typeof functionType == "string") {
+        if (isStatic)
+          throw A.wrapException("Cannot compute signature for static tearoff.");
+        return function(recipe, evalOnReceiver) {
+          return function() {
+            return evalOnReceiver(this, recipe);
+          };
+        }(functionType, A.BoundClosure_evalRecipe);
+      }
+      throw A.wrapException("Error in functionType of tearoff");
+    },
+    Closure_cspForwardCall(arity, needsDirectAccess, stubName, $function) {
+      var getReceiver = A.BoundClosure_receiverOf;
+      switch (needsDirectAccess ? -1 : arity) {
+        case 0:
+          return function(entry, receiverOf) {
+            return function() {
+              return receiverOf(this)[entry]();
+            };
+          }(stubName, getReceiver);
+        case 1:
+          return function(entry, receiverOf) {
+            return function(a) {
+              return receiverOf(this)[entry](a);
+            };
+          }(stubName, getReceiver);
+        case 2:
+          return function(entry, receiverOf) {
+            return function(a, b) {
+              return receiverOf(this)[entry](a, b);
+            };
+          }(stubName, getReceiver);
+        case 3:
+          return function(entry, receiverOf) {
+            return function(a, b, c) {
+              return receiverOf(this)[entry](a, b, c);
+            };
+          }(stubName, getReceiver);
+        case 4:
+          return function(entry, receiverOf) {
+            return function(a, b, c, d) {
+              return receiverOf(this)[entry](a, b, c, d);
+            };
+          }(stubName, getReceiver);
+        case 5:
+          return function(entry, receiverOf) {
+            return function(a, b, c, d, e) {
+              return receiverOf(this)[entry](a, b, c, d, e);
+            };
+          }(stubName, getReceiver);
+        default:
+          return function(f, receiverOf) {
+            return function() {
+              return f.apply(receiverOf(this), arguments);
+            };
+          }($function, getReceiver);
+      }
+    },
+    Closure_forwardCallTo(stubName, $function, isIntercepted, needsDirectAccess) {
+      if (isIntercepted)
+        return A.Closure_forwardInterceptedCallTo(stubName, $function, needsDirectAccess);
+      return A.Closure_cspForwardCall($function.length, needsDirectAccess, stubName, $function);
+    },
+    Closure_cspForwardInterceptedCall(arity, needsDirectAccess, stubName, $function) {
+      var getReceiver = A.BoundClosure_receiverOf,
+        getInterceptor = A.BoundClosure_interceptorOf;
+      switch (needsDirectAccess ? -1 : arity) {
+        case 0:
+          throw A.wrapException(new A.RuntimeError("Intercepted function with no arguments."));
+        case 1:
+          return function(entry, interceptorOf, receiverOf) {
+            return function() {
+              return interceptorOf(this)[entry](receiverOf(this));
+            };
+          }(stubName, getInterceptor, getReceiver);
+        case 2:
+          return function(entry, interceptorOf, receiverOf) {
+            return function(a) {
+              return interceptorOf(this)[entry](receiverOf(this), a);
+            };
+          }(stubName, getInterceptor, getReceiver);
+        case 3:
+          return function(entry, interceptorOf, receiverOf) {
+            return function(a, b) {
+              return interceptorOf(this)[entry](receiverOf(this), a, b);
+            };
+          }(stubName, getInterceptor, getReceiver);
+        case 4:
+          return function(entry, interceptorOf, receiverOf) {
+            return function(a, b, c) {
+              return interceptorOf(this)[entry](receiverOf(this), a, b, c);
+            };
+          }(stubName, getInterceptor, getReceiver);
+        case 5:
+          return function(entry, interceptorOf, receiverOf) {
+            return function(a, b, c, d) {
+              return interceptorOf(this)[entry](receiverOf(this), a, b, c, d);
+            };
+          }(stubName, getInterceptor, getReceiver);
+        case 6:
+          return function(entry, interceptorOf, receiverOf) {
+            return function(a, b, c, d, e) {
+              return interceptorOf(this)[entry](receiverOf(this), a, b, c, d, e);
+            };
+          }(stubName, getInterceptor, getReceiver);
+        default:
+          return function(f, interceptorOf, receiverOf) {
+            return function() {
+              var a = [receiverOf(this)];
+              Array.prototype.push.apply(a, arguments);
+              return f.apply(interceptorOf(this), a);
+            };
+          }($function, getInterceptor, getReceiver);
+      }
+    },
+    Closure_forwardInterceptedCallTo(stubName, $function, needsDirectAccess) {
+      var arity, t1;
+      if ($.BoundClosure__interceptorFieldNameCache == null)
+        $.BoundClosure__interceptorFieldNameCache = A.BoundClosure__computeFieldNamed("interceptor");
+      if ($.BoundClosure__receiverFieldNameCache == null)
+        $.BoundClosure__receiverFieldNameCache = A.BoundClosure__computeFieldNamed("receiver");
+      arity = $function.length;
+      t1 = A.Closure_cspForwardInterceptedCall(arity, needsDirectAccess, stubName, $function);
+      return t1;
+    },
+    closureFromTearOff(parameters) {
+      return A.Closure_fromTearOff(parameters);
+    },
+    BoundClosure_evalRecipe(closure, recipe) {
+      return A._Universe_evalInEnvironment(init.typeUniverse, A.instanceType(closure._receiver), recipe);
+    },
+    BoundClosure_receiverOf(closure) {
+      return closure._receiver;
+    },
+    BoundClosure_interceptorOf(closure) {
+      return closure._interceptor;
+    },
+    BoundClosure__computeFieldNamed(fieldName) {
+      var t1, i, $name,
+        template = new A.BoundClosure("receiver", "interceptor"),
+        names = J.JSArray_markFixedList(Object.getOwnPropertyNames(template));
+      for (t1 = names.length, i = 0; i < t1; ++i) {
+        $name = names[i];
+        if (template[$name] === fieldName)
+          return $name;
+      }
+      throw A.wrapException(A.ArgumentError$("Field name " + fieldName + " not found.", null));
+    },
+    throwCyclicInit(staticName) {
+      throw A.wrapException(new A._CyclicInitializationError(staticName));
+    },
+    getIsolateAffinityTag($name) {
+      return init.getIsolateTag($name);
+    },
+    LinkedHashMapKeyIterator$(_map, _modifications) {
+      var t1 = new A.LinkedHashMapKeyIterator(_map, _modifications);
+      t1.__js_helper$_cell = _map.__js_helper$_first;
+      return t1;
+    },
+    defineProperty(obj, property, value) {
+      Object.defineProperty(obj, property, {value: value, enumerable: false, writable: true, configurable: true});
+    },
+    lookupAndCacheInterceptor(obj) {
+      var interceptor, interceptorClass, altTag, mark, t1,
+        tag = $.getTagFunction.call$1(obj),
+        record = $.dispatchRecordsForInstanceTags[tag];
+      if (record != null) {
+        Object.defineProperty(obj, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
+        return record.i;
+      }
+      interceptor = $.interceptorsForUncacheableTags[tag];
+      if (interceptor != null)
+        return interceptor;
+      interceptorClass = init.interceptorsByTag[tag];
+      if (interceptorClass == null) {
+        altTag = $.alternateTagFunction.call$2(obj, tag);
+        if (altTag != null) {
+          record = $.dispatchRecordsForInstanceTags[altTag];
+          if (record != null) {
+            Object.defineProperty(obj, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
+            return record.i;
+          }
+          interceptor = $.interceptorsForUncacheableTags[altTag];
+          if (interceptor != null)
+            return interceptor;
+          interceptorClass = init.interceptorsByTag[altTag];
+          tag = altTag;
+        }
+      }
+      if (interceptorClass == null)
+        return null;
+      interceptor = interceptorClass.prototype;
+      mark = tag[0];
+      if (mark === "!") {
+        record = A.makeLeafDispatchRecord(interceptor);
+        $.dispatchRecordsForInstanceTags[tag] = record;
+        Object.defineProperty(obj, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
+        return record.i;
+      }
+      if (mark === "~") {
+        $.interceptorsForUncacheableTags[tag] = interceptor;
+        return interceptor;
+      }
+      if (mark === "-") {
+        t1 = A.makeLeafDispatchRecord(interceptor);
+        Object.defineProperty(Object.getPrototypeOf(obj), init.dispatchPropertyName, {value: t1, enumerable: false, writable: true, configurable: true});
+        return t1.i;
+      }
+      if (mark === "+")
+        return A.patchInteriorProto(obj, interceptor);
+      if (mark === "*")
+        throw A.wrapException(A.UnimplementedError$(tag));
+      if (init.leafTags[tag] === true) {
+        t1 = A.makeLeafDispatchRecord(interceptor);
+        Object.defineProperty(Object.getPrototypeOf(obj), init.dispatchPropertyName, {value: t1, enumerable: false, writable: true, configurable: true});
+        return t1.i;
+      } else
+        return A.patchInteriorProto(obj, interceptor);
+    },
+    patchInteriorProto(obj, interceptor) {
+      var proto = Object.getPrototypeOf(obj);
+      Object.defineProperty(proto, init.dispatchPropertyName, {value: J.makeDispatchRecord(interceptor, proto, null, null), enumerable: false, writable: true, configurable: true});
+      return interceptor;
+    },
+    makeLeafDispatchRecord(interceptor) {
+      return J.makeDispatchRecord(interceptor, false, null, !!interceptor.$isJavaScriptIndexingBehavior);
+    },
+    makeDefaultDispatchRecord(tag, interceptorClass, proto) {
+      var interceptor = interceptorClass.prototype;
+      if (init.leafTags[tag] === true)
+        return A.makeLeafDispatchRecord(interceptor);
+      else
+        return J.makeDispatchRecord(interceptor, proto, null, null);
+    },
+    initNativeDispatch() {
+      if (true === $.initNativeDispatchFlag)
+        return;
+      $.initNativeDispatchFlag = true;
+      A.initNativeDispatchContinue();
+    },
+    initNativeDispatchContinue() {
+      var map, tags, fun, i, tag, proto, record, interceptorClass;
+      $.dispatchRecordsForInstanceTags = Object.create(null);
+      $.interceptorsForUncacheableTags = Object.create(null);
+      A.initHooks();
+      map = init.interceptorsByTag;
+      tags = Object.getOwnPropertyNames(map);
+      if (typeof window != "undefined") {
+        window;
+        fun = function() {
+        };
+        for (i = 0; i < tags.length; ++i) {
+          tag = tags[i];
+          proto = $.prototypeForTagFunction.call$1(tag);
+          if (proto != null) {
+            record = A.makeDefaultDispatchRecord(tag, map[tag], proto);
+            if (record != null) {
+              Object.defineProperty(proto, init.dispatchPropertyName, {value: record, enumerable: false, writable: true, configurable: true});
+              fun.prototype = proto;
+            }
+          }
+        }
+      }
+      for (i = 0; i < tags.length; ++i) {
+        tag = tags[i];
+        if (/^[A-Za-z_]/.test(tag)) {
+          interceptorClass = map[tag];
+          map["!" + tag] = interceptorClass;
+          map["~" + tag] = interceptorClass;
+          map["-" + tag] = interceptorClass;
+          map["+" + tag] = interceptorClass;
+          map["*" + tag] = interceptorClass;
+        }
+      }
+    },
+    initHooks() {
+      var transformers, i, transformer, getTag, getUnknownTag, prototypeForTag,
+        hooks = B.C_JS_CONST0();
+      hooks = A.applyHooksTransformer(B.C_JS_CONST1, A.applyHooksTransformer(B.C_JS_CONST2, A.applyHooksTransformer(B.C_JS_CONST3, A.applyHooksTransformer(B.C_JS_CONST3, A.applyHooksTransformer(B.C_JS_CONST4, A.applyHooksTransformer(B.C_JS_CONST5, A.applyHooksTransformer(B.C_JS_CONST6(B.C_JS_CONST), hooks)))))));
+      if (typeof dartNativeDispatchHooksTransformer != "undefined") {
+        transformers = dartNativeDispatchHooksTransformer;
+        if (typeof transformers == "function")
+          transformers = [transformers];
+        if (Array.isArray(transformers))
+          for (i = 0; i < transformers.length; ++i) {
+            transformer = transformers[i];
+            if (typeof transformer == "function")
+              hooks = transformer(hooks) || hooks;
+          }
+      }
+      getTag = hooks.getTag;
+      getUnknownTag = hooks.getUnknownTag;
+      prototypeForTag = hooks.prototypeForTag;
+      $.getTagFunction = new A.initHooks_closure(getTag);
+      $.alternateTagFunction = new A.initHooks_closure0(getUnknownTag);
+      $.prototypeForTagFunction = new A.initHooks_closure1(prototypeForTag);
+    },
+    applyHooksTransformer(transformer, hooks) {
+      return transformer(hooks) || hooks;
+    },
+    _RecordN__equalValues(a, b) {
+      var i;
+      for (i = 0; i < a.length; ++i)
+        if (!J.$eq$(a[i], b[i]))
+          return false;
+      return true;
+    },
+    createRecordTypePredicate(shape, fieldRtis) {
+      var $length = fieldRtis.length,
+        $function = init.rttc["" + $length + ";" + shape];
+      if ($function == null)
+        return null;
+      if ($length === 0)
+        return $function;
+      if ($length === $function.length)
+        return $function.apply(null, fieldRtis);
+      return $function(fieldRtis);
+    },
+    JSSyntaxRegExp_makeNative(source, multiLine, caseSensitive, unicode, dotAll, global) {
+      var m = multiLine ? "m" : "",
+        i = caseSensitive ? "" : "i",
+        u = unicode ? "u" : "",
+        s = dotAll ? "s" : "",
+        g = global ? "g" : "",
+        regexp = function(source, modifiers) {
+          try {
+            return new RegExp(source, modifiers);
+          } catch (e) {
+            return e;
+          }
+        }(source, m + i + u + s + g);
+      if (regexp instanceof RegExp)
+        return regexp;
+      throw A.wrapException(A.FormatException$("Illegal RegExp pattern (" + String(regexp) + ")", source, null));
+    },
+    stringContainsUnchecked(receiver, other, startIndex) {
+      var t1;
+      if (typeof other == "string")
+        return receiver.indexOf(other, startIndex) >= 0;
+      else if (other instanceof A.JSSyntaxRegExp) {
+        t1 = B.JSString_methods.substring$1(receiver, startIndex);
+        return other._nativeRegExp.test(t1);
+      } else
+        return !J.allMatches$1$s(other, B.JSString_methods.substring$1(receiver, startIndex)).get$isEmpty(0);
+    },
+    escapeReplacement(replacement) {
+      if (replacement.indexOf("$", 0) >= 0)
+        return replacement.replace(/\$/g, "$$$$");
+      return replacement;
+    },
+    stringReplaceFirstRE(receiver, regexp, replacement, startIndex) {
+      var match = regexp._execGlobal$2(receiver, startIndex);
+      if (match == null)
+        return receiver;
+      return A.stringReplaceRangeUnchecked(receiver, match._match.index, match.get$end(0), replacement);
+    },
+    quoteStringForRegExp(string) {
+      if (/[[\]{}()*+?.\\^$|]/.test(string))
+        return string.replace(/[[\]{}()*+?.\\^$|]/g, "\\$&");
+      return string;
+    },
+    stringReplaceAllUnchecked(receiver, pattern, replacement) {
+      var nativeRegexp;
+      if (typeof pattern == "string")
+        return A.stringReplaceAllUncheckedString(receiver, pattern, replacement);
+      if (pattern instanceof A.JSSyntaxRegExp) {
+        nativeRegexp = pattern.get$_nativeGlobalVersion();
+        nativeRegexp.lastIndex = 0;
+        return receiver.replace(nativeRegexp, A.escapeReplacement(replacement));
+      }
+      return A.stringReplaceAllGeneral(receiver, pattern, replacement);
+    },
+    stringReplaceAllGeneral(receiver, pattern, replacement) {
+      var t1, startIndex, t2, match;
+      for (t1 = J.allMatches$1$s(pattern, receiver), t1 = t1.get$iterator(t1), startIndex = 0, t2 = ""; t1.moveNext$0();) {
+        match = t1.get$current(t1);
+        t2 = t2 + receiver.substring(startIndex, match.get$start(match)) + replacement;
+        startIndex = match.get$end(match);
+      }
+      t1 = t2 + receiver.substring(startIndex);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    stringReplaceAllUncheckedString(receiver, pattern, replacement) {
+      var $length, t1, i;
+      if (pattern === "") {
+        if (receiver === "")
+          return replacement;
+        $length = receiver.length;
+        t1 = "" + replacement;
+        for (i = 0; i < $length; ++i)
+          t1 = t1 + receiver[i] + replacement;
+        return t1.charCodeAt(0) == 0 ? t1 : t1;
+      }
+      if (receiver.indexOf(pattern, 0) < 0)
+        return receiver;
+      if (receiver.length < 500 || replacement.indexOf("$", 0) >= 0)
+        return receiver.split(pattern).join(replacement);
+      return receiver.replace(new RegExp(A.quoteStringForRegExp(pattern), "g"), A.escapeReplacement(replacement));
+    },
+    stringReplaceFirstUnchecked(receiver, pattern, replacement, startIndex) {
+      var index, t1, matches, match;
+      if (typeof pattern == "string") {
+        index = receiver.indexOf(pattern, startIndex);
+        if (index < 0)
+          return receiver;
+        return A.stringReplaceRangeUnchecked(receiver, index, index + pattern.length, replacement);
+      }
+      if (pattern instanceof A.JSSyntaxRegExp)
+        return startIndex === 0 ? receiver.replace(pattern._nativeRegExp, A.escapeReplacement(replacement)) : A.stringReplaceFirstRE(receiver, pattern, replacement, startIndex);
+      t1 = J.allMatches$2$s(pattern, receiver, startIndex);
+      matches = t1.get$iterator(t1);
+      if (!matches.moveNext$0())
+        return receiver;
+      match = matches.get$current(matches);
+      return B.JSString_methods.replaceRange$3(receiver, match.get$start(match), match.get$end(match), replacement);
+    },
+    stringReplaceRangeUnchecked(receiver, start, end, replacement) {
+      return receiver.substring(0, start) + replacement + receiver.substring(end);
+    },
+    _Record_1: function _Record_1(t0) {
+      this._0 = t0;
+    },
+    _Record_2: function _Record_2(t0, t1) {
+      this._0 = t0;
+      this._1 = t1;
+    },
+    _Record_2_forImport: function _Record_2_forImport(t0, t1) {
+      this._0 = t0;
+      this._1 = t1;
+    },
+    _Record_2_imports_modules: function _Record_2_imports_modules(t0, t1) {
+      this._0 = t0;
+      this._1 = t1;
+    },
+    _Record_2_loadedUrls_stylesheet: function _Record_2_loadedUrls_stylesheet(t0, t1) {
+      this._0 = t0;
+      this._1 = t1;
+    },
+    _Record_2_sourceMap: function _Record_2_sourceMap(t0, t1) {
+      this._0 = t0;
+      this._1 = t1;
+    },
+    _Record_3: function _Record_3(t0, t1, t2) {
+      this._0 = t0;
+      this._1 = t1;
+      this._2 = t2;
+    },
+    _Record_3_forImport: function _Record_3_forImport(t0, t1, t2) {
+      this._0 = t0;
+      this._1 = t1;
+      this._2 = t2;
+    },
+    _Record_3_importer_isDependency: function _Record_3_importer_isDependency(t0, t1, t2) {
+      this._0 = t0;
+      this._1 = t1;
+      this._2 = t2;
+    },
+    _Record_3_originalUrl: function _Record_3_originalUrl(t0, t1, t2) {
+      this._0 = t0;
+      this._1 = t1;
+      this._2 = t2;
+    },
+    _Record_5_named_namedNodes_positional_positionalNodes_separator: function _Record_5_named_namedNodes_positional_positionalNodes_separator(t0) {
+      this._values = t0;
+    },
+    ConstantMapView: function ConstantMapView(t0, t1) {
+      this._map = t0;
+      this.$ti = t1;
+    },
+    ConstantMap: function ConstantMap() {
+    },
+    ConstantStringMap: function ConstantStringMap(t0, t1, t2) {
+      this._jsIndex = t0;
+      this._values = t1;
+      this.$ti = t2;
+    },
+    _KeysOrValues: function _KeysOrValues(t0, t1) {
+      this._elements = t0;
+      this.$ti = t1;
+    },
+    _KeysOrValuesOrElementsIterator: function _KeysOrValuesOrElementsIterator(t0, t1, t2) {
+      var _ = this;
+      _._elements = t0;
+      _.__js_helper$_length = t1;
+      _.__js_helper$_index = 0;
+      _.__js_helper$_current = null;
+      _.$ti = t2;
+    },
+    ConstantSet: function ConstantSet() {
+    },
+    ConstantStringSet: function ConstantStringSet(t0, t1, t2) {
+      this._jsIndex = t0;
+      this.__js_helper$_length = t1;
+      this.$ti = t2;
+    },
+    GeneralConstantSet: function GeneralConstantSet(t0, t1) {
+      this._elements = t0;
+      this.$ti = t1;
+    },
+    Instantiation: function Instantiation() {
+    },
+    Instantiation1: function Instantiation1(t0, t1) {
+      this._genericClosure = t0;
+      this.$ti = t1;
+    },
+    JSInvocationMirror: function JSInvocationMirror(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.__js_helper$_memberName = t0;
+      _.__js_helper$_kind = t1;
+      _._arguments = t2;
+      _._namedArgumentNames = t3;
+      _._typeArgumentCount = t4;
+    },
+    Primitives_functionNoSuchMethod_closure: function Primitives_functionNoSuchMethod_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.namedArgumentList = t1;
+      this.$arguments = t2;
+    },
+    TypeErrorDecoder: function TypeErrorDecoder(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._pattern = t0;
+      _._arguments = t1;
+      _._argumentsExpr = t2;
+      _._expr = t3;
+      _._method = t4;
+      _._receiver = t5;
+    },
+    NullError: function NullError() {
+    },
+    JsNoSuchMethodError: function JsNoSuchMethodError(t0, t1, t2) {
+      this.__js_helper$_message = t0;
+      this._method = t1;
+      this._receiver = t2;
+    },
+    UnknownJsTypeError: function UnknownJsTypeError(t0) {
+      this.__js_helper$_message = t0;
+    },
+    NullThrownFromJavaScriptException: function NullThrownFromJavaScriptException(t0) {
+      this._irritant = t0;
+    },
+    ExceptionAndStackTrace: function ExceptionAndStackTrace(t0, t1) {
+      this.dartException = t0;
+      this.stackTrace = t1;
+    },
+    _StackTrace: function _StackTrace(t0) {
+      this._exception = t0;
+      this._trace = null;
+    },
+    Closure: function Closure() {
+    },
+    Closure0Args: function Closure0Args() {
+    },
+    Closure2Args: function Closure2Args() {
+    },
+    TearOffClosure: function TearOffClosure() {
+    },
+    StaticClosure: function StaticClosure() {
+    },
+    BoundClosure: function BoundClosure(t0, t1) {
+      this._receiver = t0;
+      this._interceptor = t1;
+    },
+    _CyclicInitializationError: function _CyclicInitializationError(t0) {
+      this.variableName = t0;
+    },
+    RuntimeError: function RuntimeError(t0) {
+      this.message = t0;
+    },
+    _Required: function _Required() {
+    },
+    JsLinkedHashMap: function JsLinkedHashMap(t0) {
+      var _ = this;
+      _.__js_helper$_length = 0;
+      _.__js_helper$_last = _.__js_helper$_first = _.__js_helper$_rest = _.__js_helper$_nums = _.__js_helper$_strings = null;
+      _.__js_helper$_modifications = 0;
+      _.$ti = t0;
+    },
+    JsLinkedHashMap_values_closure: function JsLinkedHashMap_values_closure(t0) {
+      this.$this = t0;
+    },
+    JsLinkedHashMap_addAll_closure: function JsLinkedHashMap_addAll_closure(t0) {
+      this.$this = t0;
+    },
+    LinkedHashMapCell: function LinkedHashMapCell(t0, t1) {
+      var _ = this;
+      _.hashMapCellKey = t0;
+      _.hashMapCellValue = t1;
+      _.__js_helper$_previous = _.__js_helper$_next = null;
+    },
+    LinkedHashMapKeyIterable: function LinkedHashMapKeyIterable(t0, t1) {
+      this.__js_helper$_map = t0;
+      this.$ti = t1;
+    },
+    LinkedHashMapKeyIterator: function LinkedHashMapKeyIterator(t0, t1) {
+      var _ = this;
+      _.__js_helper$_map = t0;
+      _.__js_helper$_modifications = t1;
+      _.__js_helper$_current = _.__js_helper$_cell = null;
+    },
+    JsIdentityLinkedHashMap: function JsIdentityLinkedHashMap(t0) {
+      var _ = this;
+      _.__js_helper$_length = 0;
+      _.__js_helper$_last = _.__js_helper$_first = _.__js_helper$_rest = _.__js_helper$_nums = _.__js_helper$_strings = null;
+      _.__js_helper$_modifications = 0;
+      _.$ti = t0;
+    },
+    JsConstantLinkedHashMap: function JsConstantLinkedHashMap(t0) {
+      var _ = this;
+      _.__js_helper$_length = 0;
+      _.__js_helper$_last = _.__js_helper$_first = _.__js_helper$_rest = _.__js_helper$_nums = _.__js_helper$_strings = null;
+      _.__js_helper$_modifications = 0;
+      _.$ti = t0;
+    },
+    initHooks_closure: function initHooks_closure(t0) {
+      this.getTag = t0;
+    },
+    initHooks_closure0: function initHooks_closure0(t0) {
+      this.getUnknownTag = t0;
+    },
+    initHooks_closure1: function initHooks_closure1(t0) {
+      this.prototypeForTag = t0;
+    },
+    _Record: function _Record() {
+    },
+    _Record2: function _Record2() {
+    },
+    _Record1: function _Record1() {
+    },
+    _Record3: function _Record3() {
+    },
+    _RecordN: function _RecordN() {
+    },
+    JSSyntaxRegExp: function JSSyntaxRegExp(t0, t1) {
+      var _ = this;
+      _.pattern = t0;
+      _._nativeRegExp = t1;
+      _._nativeAnchoredRegExp = _._nativeGlobalRegExp = null;
+    },
+    _MatchImplementation: function _MatchImplementation(t0) {
+      this._match = t0;
+    },
+    _AllMatchesIterable: function _AllMatchesIterable(t0, t1, t2) {
+      this._re = t0;
+      this.__js_helper$_string = t1;
+      this.__js_helper$_start = t2;
+    },
+    _AllMatchesIterator: function _AllMatchesIterator(t0, t1, t2) {
+      var _ = this;
+      _._regExp = t0;
+      _.__js_helper$_string = t1;
+      _._nextIndex = t2;
+      _.__js_helper$_current = null;
+    },
+    StringMatch: function StringMatch(t0, t1) {
+      this.start = t0;
+      this.pattern = t1;
+    },
+    _StringAllMatchesIterable: function _StringAllMatchesIterable(t0, t1, t2) {
+      this._input = t0;
+      this._pattern = t1;
+      this.__js_helper$_index = t2;
+    },
+    _StringAllMatchesIterator: function _StringAllMatchesIterator(t0, t1, t2) {
+      var _ = this;
+      _._input = t0;
+      _._pattern = t1;
+      _.__js_helper$_index = t2;
+      _.__js_helper$_current = null;
+    },
+    throwLateFieldADI(fieldName) {
+      A.throwExpressionWithWrapper(new A.LateError("Field '" + fieldName + "' has been assigned during initialization."), new Error());
+    },
+    throwUnnamedLateFieldNI() {
+      A.throwExpressionWithWrapper(new A.LateError("Field '' has not been initialized."), new Error());
+    },
+    throwUnnamedLateFieldAI() {
+      A.throwExpressionWithWrapper(new A.LateError("Field '' has already been initialized."), new Error());
+    },
+    throwUnnamedLateFieldADI() {
+      A.throwExpressionWithWrapper(new A.LateError("Field '' has been assigned during initialization."), new Error());
+    },
+    _Cell$() {
+      var t1 = new A._Cell();
+      return t1.__late_helper$_value = t1;
+    },
+    _Cell: function _Cell() {
+      this.__late_helper$_value = null;
+    },
+    _ensureNativeList(list) {
+      return list;
+    },
+    NativeInt8List__create1(arg) {
+      return new Int8Array(arg);
+    },
+    NativeUint8List_NativeUint8List($length) {
+      return new Uint8Array($length);
+    },
+    _checkValidIndex(index, list, $length) {
+      if (index >>> 0 !== index || index >= $length)
+        throw A.wrapException(A.diagnoseIndexError(list, index));
+    },
+    _checkValidRange(start, end, $length) {
+      var t1;
+      if (!(start >>> 0 !== start))
+        if (end == null)
+          t1 = start > $length;
+        else
+          t1 = end >>> 0 !== end || start > end || end > $length;
+      else
+        t1 = true;
+      if (t1)
+        throw A.wrapException(A.diagnoseRangeError(start, end, $length));
+      if (end == null)
+        return $length;
+      return end;
+    },
+    NativeByteBuffer: function NativeByteBuffer() {
+    },
+    NativeTypedData: function NativeTypedData() {
+    },
+    NativeByteData: function NativeByteData() {
+    },
+    NativeTypedArray: function NativeTypedArray() {
+    },
+    NativeTypedArrayOfDouble: function NativeTypedArrayOfDouble() {
+    },
+    NativeTypedArrayOfInt: function NativeTypedArrayOfInt() {
+    },
+    NativeFloat32List: function NativeFloat32List() {
+    },
+    NativeFloat64List: function NativeFloat64List() {
+    },
+    NativeInt16List: function NativeInt16List() {
+    },
+    NativeInt32List: function NativeInt32List() {
+    },
+    NativeInt8List: function NativeInt8List() {
+    },
+    NativeUint16List: function NativeUint16List() {
+    },
+    NativeUint32List: function NativeUint32List() {
+    },
+    NativeUint8ClampedList: function NativeUint8ClampedList() {
+    },
+    NativeUint8List: function NativeUint8List() {
+    },
+    _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin: function _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin() {
+    },
+    _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin: function _NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin() {
+    },
+    _NativeTypedArrayOfInt_NativeTypedArray_ListMixin: function _NativeTypedArrayOfInt_NativeTypedArray_ListMixin() {
+    },
+    _NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin: function _NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin() {
+    },
+    Rti__getQuestionFromStar(universe, rti) {
+      var question = rti._precomputed1;
+      return question == null ? rti._precomputed1 = A._Universe__lookupQuestionRti(universe, rti._primary, true) : question;
+    },
+    Rti__getFutureFromFutureOr(universe, rti) {
+      var future = rti._precomputed1;
+      return future == null ? rti._precomputed1 = A._Universe__lookupInterfaceRti(universe, "Future", [rti._primary]) : future;
+    },
+    Rti__isUnionOfFunctionType(rti) {
+      var kind = rti._kind;
+      if (kind === 6 || kind === 7 || kind === 8)
+        return A.Rti__isUnionOfFunctionType(rti._primary);
+      return kind === 12 || kind === 13;
+    },
+    Rti__getCanonicalRecipe(rti) {
+      return rti._canonicalRecipe;
+    },
+    pairwiseIsTest(fieldRtis, values) {
+      var i,
+        $length = values.length;
+      for (i = 0; i < $length; ++i)
+        if (!fieldRtis[i]._is(values[i]))
+          return false;
+      return true;
+    },
+    findType(recipe) {
+      return A._Universe_eval(init.typeUniverse, recipe, false);
+    },
+    instantiatedGenericFunctionType(genericFunctionRti, instantiationRti) {
+      var t1, cache, key, probe, rti;
+      if (genericFunctionRti == null)
+        return null;
+      t1 = instantiationRti._rest;
+      cache = genericFunctionRti._bindCache;
+      if (cache == null)
+        cache = genericFunctionRti._bindCache = new Map();
+      key = instantiationRti._canonicalRecipe;
+      probe = cache.get(key);
+      if (probe != null)
+        return probe;
+      rti = A._substitute(init.typeUniverse, genericFunctionRti._primary, t1, 0);
+      cache.set(key, rti);
+      return rti;
+    },
+    _substitute(universe, rti, typeArguments, depth) {
+      var baseType, substitutedBaseType, interfaceTypeArguments, substitutedInterfaceTypeArguments, base, substitutedBase, $arguments, substitutedArguments, t1, fields, substitutedFields, returnType, substitutedReturnType, functionParameters, substitutedFunctionParameters, bounds, substitutedBounds, index, argument,
+        kind = rti._kind;
+      switch (kind) {
+        case 5:
+        case 1:
+        case 2:
+        case 3:
+        case 4:
+          return rti;
+        case 6:
+          baseType = rti._primary;
+          substitutedBaseType = A._substitute(universe, baseType, typeArguments, depth);
+          if (substitutedBaseType === baseType)
+            return rti;
+          return A._Universe__lookupStarRti(universe, substitutedBaseType, true);
+        case 7:
+          baseType = rti._primary;
+          substitutedBaseType = A._substitute(universe, baseType, typeArguments, depth);
+          if (substitutedBaseType === baseType)
+            return rti;
+          return A._Universe__lookupQuestionRti(universe, substitutedBaseType, true);
+        case 8:
+          baseType = rti._primary;
+          substitutedBaseType = A._substitute(universe, baseType, typeArguments, depth);
+          if (substitutedBaseType === baseType)
+            return rti;
+          return A._Universe__lookupFutureOrRti(universe, substitutedBaseType, true);
+        case 9:
+          interfaceTypeArguments = rti._rest;
+          substitutedInterfaceTypeArguments = A._substituteArray(universe, interfaceTypeArguments, typeArguments, depth);
+          if (substitutedInterfaceTypeArguments === interfaceTypeArguments)
+            return rti;
+          return A._Universe__lookupInterfaceRti(universe, rti._primary, substitutedInterfaceTypeArguments);
+        case 10:
+          base = rti._primary;
+          substitutedBase = A._substitute(universe, base, typeArguments, depth);
+          $arguments = rti._rest;
+          substitutedArguments = A._substituteArray(universe, $arguments, typeArguments, depth);
+          if (substitutedBase === base && substitutedArguments === $arguments)
+            return rti;
+          return A._Universe__lookupBindingRti(universe, substitutedBase, substitutedArguments);
+        case 11:
+          t1 = rti._primary;
+          fields = rti._rest;
+          substitutedFields = A._substituteArray(universe, fields, typeArguments, depth);
+          if (substitutedFields === fields)
+            return rti;
+          return A._Universe__lookupRecordRti(universe, t1, substitutedFields);
+        case 12:
+          returnType = rti._primary;
+          substitutedReturnType = A._substitute(universe, returnType, typeArguments, depth);
+          functionParameters = rti._rest;
+          substitutedFunctionParameters = A._substituteFunctionParameters(universe, functionParameters, typeArguments, depth);
+          if (substitutedReturnType === returnType && substitutedFunctionParameters === functionParameters)
+            return rti;
+          return A._Universe__lookupFunctionRti(universe, substitutedReturnType, substitutedFunctionParameters);
+        case 13:
+          bounds = rti._rest;
+          depth += bounds.length;
+          substitutedBounds = A._substituteArray(universe, bounds, typeArguments, depth);
+          base = rti._primary;
+          substitutedBase = A._substitute(universe, base, typeArguments, depth);
+          if (substitutedBounds === bounds && substitutedBase === base)
+            return rti;
+          return A._Universe__lookupGenericFunctionRti(universe, substitutedBase, substitutedBounds, true);
+        case 14:
+          index = rti._primary;
+          if (index < depth)
+            return rti;
+          argument = typeArguments[index - depth];
+          if (argument == null)
+            return rti;
+          return argument;
+        default:
+          throw A.wrapException(A.AssertionError$("Attempted to substitute unexpected RTI kind " + kind));
+      }
+    },
+    _substituteArray(universe, rtiArray, typeArguments, depth) {
+      var changed, i, rti, substitutedRti,
+        $length = rtiArray.length,
+        result = A._Utils_newArrayOrEmpty($length);
+      for (changed = false, i = 0; i < $length; ++i) {
+        rti = rtiArray[i];
+        substitutedRti = A._substitute(universe, rti, typeArguments, depth);
+        if (substitutedRti !== rti)
+          changed = true;
+        result[i] = substitutedRti;
+      }
+      return changed ? result : rtiArray;
+    },
+    _substituteNamed(universe, namedArray, typeArguments, depth) {
+      var changed, i, t1, t2, rti, substitutedRti,
+        $length = namedArray.length,
+        result = A._Utils_newArrayOrEmpty($length);
+      for (changed = false, i = 0; i < $length; i += 3) {
+        t1 = namedArray[i];
+        t2 = namedArray[i + 1];
+        rti = namedArray[i + 2];
+        substitutedRti = A._substitute(universe, rti, typeArguments, depth);
+        if (substitutedRti !== rti)
+          changed = true;
+        result.splice(i, 3, t1, t2, substitutedRti);
+      }
+      return changed ? result : namedArray;
+    },
+    _substituteFunctionParameters(universe, functionParameters, typeArguments, depth) {
+      var result,
+        requiredPositional = functionParameters._requiredPositional,
+        substitutedRequiredPositional = A._substituteArray(universe, requiredPositional, typeArguments, depth),
+        optionalPositional = functionParameters._optionalPositional,
+        substitutedOptionalPositional = A._substituteArray(universe, optionalPositional, typeArguments, depth),
+        named = functionParameters._named,
+        substitutedNamed = A._substituteNamed(universe, named, typeArguments, depth);
+      if (substitutedRequiredPositional === requiredPositional && substitutedOptionalPositional === optionalPositional && substitutedNamed === named)
+        return functionParameters;
+      result = new A._FunctionParameters();
+      result._requiredPositional = substitutedRequiredPositional;
+      result._optionalPositional = substitutedOptionalPositional;
+      result._named = substitutedNamed;
+      return result;
+    },
+    _setArrayType(target, rti) {
+      target[init.arrayRti] = rti;
+      return target;
+    },
+    closureFunctionType(closure) {
+      var signature = closure.$signature;
+      if (signature != null) {
+        if (typeof signature == "number")
+          return A.getTypeFromTypesTable(signature);
+        return closure.$signature();
+      }
+      return null;
+    },
+    instanceOrFunctionType(object, testRti) {
+      var rti;
+      if (A.Rti__isUnionOfFunctionType(testRti))
+        if (object instanceof A.Closure) {
+          rti = A.closureFunctionType(object);
+          if (rti != null)
+            return rti;
+        }
+      return A.instanceType(object);
+    },
+    instanceType(object) {
+      if (object instanceof A.Object)
+        return A._instanceType(object);
+      if (Array.isArray(object))
+        return A._arrayInstanceType(object);
+      return A._instanceTypeFromConstructor(J.getInterceptor$(object));
+    },
+    _arrayInstanceType(object) {
+      var rti = object[init.arrayRti],
+        defaultRti = type$.JSArray_dynamic;
+      if (rti == null)
+        return defaultRti;
+      if (rti.constructor !== defaultRti.constructor)
+        return defaultRti;
+      return rti;
+    },
+    _instanceType(object) {
+      var rti = object.$ti;
+      return rti != null ? rti : A._instanceTypeFromConstructor(object);
+    },
+    _instanceTypeFromConstructor(instance) {
+      var $constructor = instance.constructor,
+        probe = $constructor.$ccache;
+      if (probe != null)
+        return probe;
+      return A._instanceTypeFromConstructorMiss(instance, $constructor);
+    },
+    _instanceTypeFromConstructorMiss(instance, $constructor) {
+      var effectiveConstructor = instance instanceof A.Closure ? Object.getPrototypeOf(Object.getPrototypeOf(instance)).constructor : $constructor,
+        rti = A._Universe_findErasedType(init.typeUniverse, effectiveConstructor.name);
+      $constructor.$ccache = rti;
+      return rti;
+    },
+    getTypeFromTypesTable(index) {
+      var rti,
+        table = init.types,
+        type = table[index];
+      if (typeof type == "string") {
+        rti = A._Universe_eval(init.typeUniverse, type, false);
+        table[index] = rti;
+        return rti;
+      }
+      return type;
+    },
+    getRuntimeTypeOfDartObject(object) {
+      return A.createRuntimeType(A._instanceType(object));
+    },
+    getRuntimeTypeOfClosure(closure) {
+      var rti = A.closureFunctionType(closure);
+      return A.createRuntimeType(rti == null ? A.instanceType(closure) : rti);
+    },
+    _structuralTypeOf(object) {
+      var functionRti;
+      if (object instanceof A._Record)
+        return A.evaluateRtiForRecord(object.$recipe, object._getFieldValues$0());
+      functionRti = object instanceof A.Closure ? A.closureFunctionType(object) : null;
+      if (functionRti != null)
+        return functionRti;
+      if (type$.TrustedGetRuntimeType._is(object))
+        return J.get$runtimeType$(object)._rti;
+      if (Array.isArray(object))
+        return A._arrayInstanceType(object);
+      return A.instanceType(object);
+    },
+    createRuntimeType(rti) {
+      var t1 = rti._cachedRuntimeType;
+      return t1 == null ? rti._cachedRuntimeType = A._createRuntimeType(rti) : t1;
+    },
+    _createRuntimeType(rti) {
+      var starErasedRti, t1,
+        s = rti._canonicalRecipe,
+        starErasedRecipe = s.replace(/\*/g, "");
+      if (starErasedRecipe === s)
+        return rti._cachedRuntimeType = new A._Type(rti);
+      starErasedRti = A._Universe_eval(init.typeUniverse, starErasedRecipe, true);
+      t1 = starErasedRti._cachedRuntimeType;
+      return t1 == null ? starErasedRti._cachedRuntimeType = A._createRuntimeType(starErasedRti) : t1;
+    },
+    evaluateRtiForRecord(recordRecipe, valuesList) {
+      var bindings, i,
+        values = valuesList,
+        $length = values.length;
+      if ($length === 0)
+        return type$.Record_0;
+      bindings = A._Universe_evalInEnvironment(init.typeUniverse, A._structuralTypeOf(values[0]), "@<0>");
+      for (i = 1; i < $length; ++i)
+        bindings = A._Universe_bind(init.typeUniverse, bindings, A._structuralTypeOf(values[i]));
+      return A._Universe_evalInEnvironment(init.typeUniverse, bindings, recordRecipe);
+    },
+    typeLiteral(recipe) {
+      return A.createRuntimeType(A._Universe_eval(init.typeUniverse, recipe, false));
+    },
+    _installSpecializedIsTest(object) {
+      var t1, unstarred, unstarredKind, isFn, $name, predicate, testRti = this;
+      if (testRti === type$.Object)
+        return A._finishIsFn(testRti, object, A._isObject);
+      if (!A.isSoundTopType(testRti))
+        t1 = testRti === type$.legacy_Object;
+      else
+        t1 = true;
+      if (t1)
+        return A._finishIsFn(testRti, object, A._isTop);
+      t1 = testRti._kind;
+      if (t1 === 7)
+        return A._finishIsFn(testRti, object, A._generalNullableIsTestImplementation);
+      if (t1 === 1)
+        return A._finishIsFn(testRti, object, A._isNever);
+      unstarred = t1 === 6 ? testRti._primary : testRti;
+      unstarredKind = unstarred._kind;
+      if (unstarredKind === 8)
+        return A._finishIsFn(testRti, object, A._isFutureOr);
+      if (unstarred === type$.int)
+        isFn = A._isInt;
+      else if (unstarred === type$.double || unstarred === type$.num)
+        isFn = A._isNum;
+      else if (unstarred === type$.String)
+        isFn = A._isString;
+      else
+        isFn = unstarred === type$.bool ? A._isBool : null;
+      if (isFn != null)
+        return A._finishIsFn(testRti, object, isFn);
+      if (unstarredKind === 9) {
+        $name = unstarred._primary;
+        if (unstarred._rest.every(A.isDefinitelyTopType)) {
+          testRti._specializedTestResource = "$is" + $name;
+          if ($name === "List")
+            return A._finishIsFn(testRti, object, A._isListTestViaProperty);
+          return A._finishIsFn(testRti, object, A._isTestViaProperty);
+        }
+      } else if (unstarredKind === 11) {
+        predicate = A.createRecordTypePredicate(unstarred._primary, unstarred._rest);
+        return A._finishIsFn(testRti, object, predicate == null ? A._isNever : predicate);
+      }
+      return A._finishIsFn(testRti, object, A._generalIsTestImplementation);
+    },
+    _finishIsFn(testRti, object, isFn) {
+      testRti._is = isFn;
+      return testRti._is(object);
+    },
+    _installSpecializedAsCheck(object) {
+      var t1, testRti = this,
+        asFn = A._generalAsCheckImplementation;
+      if (!A.isSoundTopType(testRti))
+        t1 = testRti === type$.legacy_Object;
+      else
+        t1 = true;
+      if (t1)
+        asFn = A._asTop;
+      else if (testRti === type$.Object)
+        asFn = A._asObject;
+      else {
+        t1 = A.isNullable(testRti);
+        if (t1)
+          asFn = A._generalNullableAsCheckImplementation;
+      }
+      testRti._as = asFn;
+      return testRti._as(object);
+    },
+    _nullIs(testRti) {
+      var t1,
+        kind = testRti._kind;
+      if (!A.isSoundTopType(testRti))
+        if (!(testRti === type$.legacy_Object))
+          if (!(testRti === type$.legacy_Never))
+            if (kind !== 7)
+              if (!(kind === 6 && A._nullIs(testRti._primary)))
+                t1 = kind === 8 && A._nullIs(testRti._primary) || testRti === type$.Null || testRti === type$.JSNull;
+              else
+                t1 = true;
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    _generalIsTestImplementation(object) {
+      var testRti = this;
+      if (object == null)
+        return A._nullIs(testRti);
+      return A.isSubtype(init.typeUniverse, A.instanceOrFunctionType(object, testRti), testRti);
+    },
+    _generalNullableIsTestImplementation(object) {
+      if (object == null)
+        return true;
+      return this._primary._is(object);
+    },
+    _isTestViaProperty(object) {
+      var tag, testRti = this;
+      if (object == null)
+        return A._nullIs(testRti);
+      tag = testRti._specializedTestResource;
+      if (object instanceof A.Object)
+        return !!object[tag];
+      return !!J.getInterceptor$(object)[tag];
+    },
+    _isListTestViaProperty(object) {
+      var tag, testRti = this;
+      if (object == null)
+        return A._nullIs(testRti);
+      if (typeof object != "object")
+        return false;
+      if (Array.isArray(object))
+        return true;
+      tag = testRti._specializedTestResource;
+      if (object instanceof A.Object)
+        return !!object[tag];
+      return !!J.getInterceptor$(object)[tag];
+    },
+    _generalAsCheckImplementation(object) {
+      var testRti = this;
+      if (object == null) {
+        if (A.isNullable(testRti))
+          return object;
+      } else if (testRti._is(object))
+        return object;
+      A._failedAsCheck(object, testRti);
+    },
+    _generalNullableAsCheckImplementation(object) {
+      var testRti = this;
+      if (object == null)
+        return object;
+      else if (testRti._is(object))
+        return object;
+      A._failedAsCheck(object, testRti);
+    },
+    _failedAsCheck(object, testRti) {
+      throw A.wrapException(A._TypeError$fromMessage(A._Error_compose(object, A._rtiToString(testRti, null))));
+    },
+    _Error_compose(object, checkedTypeDescription) {
+      return A.Error_safeToString(object) + ": type '" + A._rtiToString(A._structuralTypeOf(object), null) + "' is not a subtype of type '" + checkedTypeDescription + "'";
+    },
+    _TypeError$fromMessage(message) {
+      return new A._TypeError("TypeError: " + message);
+    },
+    _TypeError__TypeError$forType(object, type) {
+      return new A._TypeError("TypeError: " + A._Error_compose(object, type));
+    },
+    _isFutureOr(object) {
+      var testRti = this,
+        unstarred = testRti._kind === 6 ? testRti._primary : testRti;
+      return unstarred._primary._is(object) || A.Rti__getFutureFromFutureOr(init.typeUniverse, unstarred)._is(object);
+    },
+    _isObject(object) {
+      return object != null;
+    },
+    _asObject(object) {
+      if (object != null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "Object"));
+    },
+    _isTop(object) {
+      return true;
+    },
+    _asTop(object) {
+      return object;
+    },
+    _isNever(object) {
+      return false;
+    },
+    _isBool(object) {
+      return true === object || false === object;
+    },
+    _asBool(object) {
+      if (true === object)
+        return true;
+      if (false === object)
+        return false;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "bool"));
+    },
+    _asBoolS(object) {
+      if (true === object)
+        return true;
+      if (false === object)
+        return false;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "bool"));
+    },
+    _asBoolQ(object) {
+      if (true === object)
+        return true;
+      if (false === object)
+        return false;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "bool?"));
+    },
+    _asDouble(object) {
+      if (typeof object == "number")
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "double"));
+    },
+    _asDoubleS(object) {
+      if (typeof object == "number")
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "double"));
+    },
+    _asDoubleQ(object) {
+      if (typeof object == "number")
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "double?"));
+    },
+    _isInt(object) {
+      return typeof object == "number" && Math.floor(object) === object;
+    },
+    _asInt(object) {
+      if (typeof object == "number" && Math.floor(object) === object)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "int"));
+    },
+    _asIntS(object) {
+      if (typeof object == "number" && Math.floor(object) === object)
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "int"));
+    },
+    _asIntQ(object) {
+      if (typeof object == "number" && Math.floor(object) === object)
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "int?"));
+    },
+    _isNum(object) {
+      return typeof object == "number";
+    },
+    _asNum(object) {
+      if (typeof object == "number")
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "num"));
+    },
+    _asNumS(object) {
+      if (typeof object == "number")
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "num"));
+    },
+    _asNumQ(object) {
+      if (typeof object == "number")
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "num?"));
+    },
+    _isString(object) {
+      return typeof object == "string";
+    },
+    _asString(object) {
+      if (typeof object == "string")
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "String"));
+    },
+    _asStringS(object) {
+      if (typeof object == "string")
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "String"));
+    },
+    _asStringQ(object) {
+      if (typeof object == "string")
+        return object;
+      if (object == null)
+        return object;
+      throw A.wrapException(A._TypeError__TypeError$forType(object, "String?"));
+    },
+    _rtiArrayToString(array, genericContext) {
+      var s, sep, i;
+      for (s = "", sep = "", i = 0; i < array.length; ++i, sep = ", ")
+        s += sep + A._rtiToString(array[i], genericContext);
+      return s;
+    },
+    _recordRtiToString(recordType, genericContext) {
+      var fieldCount, names, namesIndex, s, comma, i,
+        partialShape = recordType._primary,
+        fields = recordType._rest;
+      if ("" === partialShape)
+        return "(" + A._rtiArrayToString(fields, genericContext) + ")";
+      fieldCount = fields.length;
+      names = partialShape.split(",");
+      namesIndex = names.length - fieldCount;
+      for (s = "(", comma = "", i = 0; i < fieldCount; ++i, comma = ", ") {
+        s += comma;
+        if (namesIndex === 0)
+          s += "{";
+        s += A._rtiToString(fields[i], genericContext);
+        if (namesIndex >= 0)
+          s += " " + names[namesIndex];
+        ++namesIndex;
+      }
+      return s + "})";
+    },
+    _functionRtiToString(functionType, genericContext, bounds) {
+      var boundsLength, outerContextLength, offset, i, t1, t2, typeParametersText, typeSep, boundRti, kind, t3, parameters, requiredPositional, requiredPositionalLength, optionalPositional, optionalPositionalLength, named, namedLength, returnTypeText, argumentsText, sep, _s2_ = ", ";
+      if (bounds != null) {
+        boundsLength = bounds.length;
+        if (genericContext == null) {
+          genericContext = A._setArrayType([], type$.JSArray_String);
+          outerContextLength = null;
+        } else
+          outerContextLength = genericContext.length;
+        offset = genericContext.length;
+        for (i = boundsLength; i > 0; --i)
+          genericContext.push("T" + (offset + i));
+        for (t1 = type$.nullable_Object, t2 = type$.legacy_Object, typeParametersText = "<", typeSep = "", i = 0; i < boundsLength; ++i, typeSep = _s2_) {
+          typeParametersText = B.JSString_methods.$add(typeParametersText + typeSep, genericContext[genericContext.length - 1 - i]);
+          boundRti = bounds[i];
+          kind = boundRti._kind;
+          if (!(kind === 2 || kind === 3 || kind === 4 || kind === 5 || boundRti === t1))
+            t3 = boundRti === t2;
+          else
+            t3 = true;
+          if (!t3)
+            typeParametersText += " extends " + A._rtiToString(boundRti, genericContext);
+        }
+        typeParametersText += ">";
+      } else {
+        typeParametersText = "";
+        outerContextLength = null;
+      }
+      t1 = functionType._primary;
+      parameters = functionType._rest;
+      requiredPositional = parameters._requiredPositional;
+      requiredPositionalLength = requiredPositional.length;
+      optionalPositional = parameters._optionalPositional;
+      optionalPositionalLength = optionalPositional.length;
+      named = parameters._named;
+      namedLength = named.length;
+      returnTypeText = A._rtiToString(t1, genericContext);
+      for (argumentsText = "", sep = "", i = 0; i < requiredPositionalLength; ++i, sep = _s2_)
+        argumentsText += sep + A._rtiToString(requiredPositional[i], genericContext);
+      if (optionalPositionalLength > 0) {
+        argumentsText += sep + "[";
+        for (sep = "", i = 0; i < optionalPositionalLength; ++i, sep = _s2_)
+          argumentsText += sep + A._rtiToString(optionalPositional[i], genericContext);
+        argumentsText += "]";
+      }
+      if (namedLength > 0) {
+        argumentsText += sep + "{";
+        for (sep = "", i = 0; i < namedLength; i += 3, sep = _s2_) {
+          argumentsText += sep;
+          if (named[i + 1])
+            argumentsText += "required ";
+          argumentsText += A._rtiToString(named[i + 2], genericContext) + " " + named[i];
+        }
+        argumentsText += "}";
+      }
+      if (outerContextLength != null) {
+        genericContext.toString;
+        genericContext.length = outerContextLength;
+      }
+      return typeParametersText + "(" + argumentsText + ") => " + returnTypeText;
+    },
+    _rtiToString(rti, genericContext) {
+      var questionArgument, s, argumentKind, $name, $arguments, t1,
+        kind = rti._kind;
+      if (kind === 5)
+        return "erased";
+      if (kind === 2)
+        return "dynamic";
+      if (kind === 3)
+        return "void";
+      if (kind === 1)
+        return "Never";
+      if (kind === 4)
+        return "any";
+      if (kind === 6)
+        return A._rtiToString(rti._primary, genericContext);
+      if (kind === 7) {
+        questionArgument = rti._primary;
+        s = A._rtiToString(questionArgument, genericContext);
+        argumentKind = questionArgument._kind;
+        return (argumentKind === 12 || argumentKind === 13 ? "(" + s + ")" : s) + "?";
+      }
+      if (kind === 8)
+        return "FutureOr<" + A._rtiToString(rti._primary, genericContext) + ">";
+      if (kind === 9) {
+        $name = A._unminifyOrTag(rti._primary);
+        $arguments = rti._rest;
+        return $arguments.length > 0 ? $name + ("<" + A._rtiArrayToString($arguments, genericContext) + ">") : $name;
+      }
+      if (kind === 11)
+        return A._recordRtiToString(rti, genericContext);
+      if (kind === 12)
+        return A._functionRtiToString(rti, genericContext, null);
+      if (kind === 13)
+        return A._functionRtiToString(rti._primary, genericContext, rti._rest);
+      if (kind === 14) {
+        t1 = rti._primary;
+        return genericContext[genericContext.length - 1 - t1];
+      }
+      return "?";
+    },
+    _unminifyOrTag(rawClassName) {
+      var preserved = init.mangledGlobalNames[rawClassName];
+      if (preserved != null)
+        return preserved;
+      return rawClassName;
+    },
+    _Universe_findRule(universe, targetType) {
+      var rule = universe.tR[targetType];
+      for (; typeof rule == "string";)
+        rule = universe.tR[rule];
+      return rule;
+    },
+    _Universe_findErasedType(universe, cls) {
+      var $length, erased, $arguments, i, $interface,
+        t1 = universe.eT,
+        probe = t1[cls];
+      if (probe == null)
+        return A._Universe_eval(universe, cls, false);
+      else if (typeof probe == "number") {
+        $length = probe;
+        erased = A._Universe__lookupTerminalRti(universe, 5, "#");
+        $arguments = A._Utils_newArrayOrEmpty($length);
+        for (i = 0; i < $length; ++i)
+          $arguments[i] = erased;
+        $interface = A._Universe__lookupInterfaceRti(universe, cls, $arguments);
+        t1[cls] = $interface;
+        return $interface;
+      } else
+        return probe;
+    },
+    _Universe_addRules(universe, rules) {
+      return A._Utils_objectAssign(universe.tR, rules);
+    },
+    _Universe_addErasedTypes(universe, types) {
+      return A._Utils_objectAssign(universe.eT, types);
+    },
+    _Universe_eval(universe, recipe, normalize) {
+      var rti,
+        t1 = universe.eC,
+        probe = t1.get(recipe);
+      if (probe != null)
+        return probe;
+      rti = A._Parser_parse(A._Parser_create(universe, null, recipe, normalize));
+      t1.set(recipe, rti);
+      return rti;
+    },
+    _Universe_evalInEnvironment(universe, environment, recipe) {
+      var probe, rti,
+        cache = environment._evalCache;
+      if (cache == null)
+        cache = environment._evalCache = new Map();
+      probe = cache.get(recipe);
+      if (probe != null)
+        return probe;
+      rti = A._Parser_parse(A._Parser_create(universe, environment, recipe, true));
+      cache.set(recipe, rti);
+      return rti;
+    },
+    _Universe_bind(universe, environment, argumentsRti) {
+      var argumentsRecipe, probe, rti,
+        cache = environment._bindCache;
+      if (cache == null)
+        cache = environment._bindCache = new Map();
+      argumentsRecipe = argumentsRti._canonicalRecipe;
+      probe = cache.get(argumentsRecipe);
+      if (probe != null)
+        return probe;
+      rti = A._Universe__lookupBindingRti(universe, environment, argumentsRti._kind === 10 ? argumentsRti._rest : [argumentsRti]);
+      cache.set(argumentsRecipe, rti);
+      return rti;
+    },
+    _Universe__installTypeTests(universe, rti) {
+      rti._as = A._installSpecializedAsCheck;
+      rti._is = A._installSpecializedIsTest;
+      return rti;
+    },
+    _Universe__lookupTerminalRti(universe, kind, key) {
+      var rti, t1,
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      rti = new A.Rti(null, null);
+      rti._kind = kind;
+      rti._canonicalRecipe = key;
+      t1 = A._Universe__installTypeTests(universe, rti);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__lookupStarRti(universe, baseType, normalize) {
+      var t1,
+        key = baseType._canonicalRecipe + "*",
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      t1 = A._Universe__createStarRti(universe, baseType, key, normalize);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__createStarRti(universe, baseType, key, normalize) {
+      var baseKind, t1, rti;
+      if (normalize) {
+        baseKind = baseType._kind;
+        if (!A.isSoundTopType(baseType))
+          t1 = baseType === type$.Null || baseType === type$.JSNull || baseKind === 7 || baseKind === 6;
+        else
+          t1 = true;
+        if (t1)
+          return baseType;
+      }
+      rti = new A.Rti(null, null);
+      rti._kind = 6;
+      rti._primary = baseType;
+      rti._canonicalRecipe = key;
+      return A._Universe__installTypeTests(universe, rti);
+    },
+    _Universe__lookupQuestionRti(universe, baseType, normalize) {
+      var t1,
+        key = baseType._canonicalRecipe + "?",
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      t1 = A._Universe__createQuestionRti(universe, baseType, key, normalize);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__createQuestionRti(universe, baseType, key, normalize) {
+      var baseKind, t1, starArgument, rti;
+      if (normalize) {
+        baseKind = baseType._kind;
+        if (!A.isSoundTopType(baseType))
+          if (!(baseType === type$.Null || baseType === type$.JSNull))
+            if (baseKind !== 7)
+              t1 = baseKind === 8 && A.isNullable(baseType._primary);
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+        if (t1)
+          return baseType;
+        else if (baseKind === 1 || baseType === type$.legacy_Never)
+          return type$.Null;
+        else if (baseKind === 6) {
+          starArgument = baseType._primary;
+          if (starArgument._kind === 8 && A.isNullable(starArgument._primary))
+            return starArgument;
+          else
+            return A.Rti__getQuestionFromStar(universe, baseType);
+        }
+      }
+      rti = new A.Rti(null, null);
+      rti._kind = 7;
+      rti._primary = baseType;
+      rti._canonicalRecipe = key;
+      return A._Universe__installTypeTests(universe, rti);
+    },
+    _Universe__lookupFutureOrRti(universe, baseType, normalize) {
+      var t1,
+        key = baseType._canonicalRecipe + "/",
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      t1 = A._Universe__createFutureOrRti(universe, baseType, key, normalize);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__createFutureOrRti(universe, baseType, key, normalize) {
+      var t1, rti;
+      if (normalize) {
+        t1 = baseType._kind;
+        if (A.isSoundTopType(baseType) || baseType === type$.Object || baseType === type$.legacy_Object)
+          return baseType;
+        else if (t1 === 1)
+          return A._Universe__lookupInterfaceRti(universe, "Future", [baseType]);
+        else if (baseType === type$.Null || baseType === type$.JSNull)
+          return type$.nullable_Future_Null;
+      }
+      rti = new A.Rti(null, null);
+      rti._kind = 8;
+      rti._primary = baseType;
+      rti._canonicalRecipe = key;
+      return A._Universe__installTypeTests(universe, rti);
+    },
+    _Universe__lookupGenericFunctionParameterRti(universe, index) {
+      var rti, t1,
+        key = "" + index + "^",
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      rti = new A.Rti(null, null);
+      rti._kind = 14;
+      rti._primary = index;
+      rti._canonicalRecipe = key;
+      t1 = A._Universe__installTypeTests(universe, rti);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__canonicalRecipeJoin($arguments) {
+      var s, sep, i,
+        $length = $arguments.length;
+      for (s = "", sep = "", i = 0; i < $length; ++i, sep = ",")
+        s += sep + $arguments[i]._canonicalRecipe;
+      return s;
+    },
+    _Universe__canonicalRecipeJoinNamed($arguments) {
+      var s, sep, i, t1, nameSep,
+        $length = $arguments.length;
+      for (s = "", sep = "", i = 0; i < $length; i += 3, sep = ",") {
+        t1 = $arguments[i];
+        nameSep = $arguments[i + 1] ? "!" : ":";
+        s += sep + t1 + nameSep + $arguments[i + 2]._canonicalRecipe;
+      }
+      return s;
+    },
+    _Universe__lookupInterfaceRti(universe, $name, $arguments) {
+      var probe, rti, t1,
+        s = $name;
+      if ($arguments.length > 0)
+        s += "<" + A._Universe__canonicalRecipeJoin($arguments) + ">";
+      probe = universe.eC.get(s);
+      if (probe != null)
+        return probe;
+      rti = new A.Rti(null, null);
+      rti._kind = 9;
+      rti._primary = $name;
+      rti._rest = $arguments;
+      if ($arguments.length > 0)
+        rti._precomputed1 = $arguments[0];
+      rti._canonicalRecipe = s;
+      t1 = A._Universe__installTypeTests(universe, rti);
+      universe.eC.set(s, t1);
+      return t1;
+    },
+    _Universe__lookupBindingRti(universe, base, $arguments) {
+      var newBase, newArguments, key, probe, rti, t1;
+      if (base._kind === 10) {
+        newBase = base._primary;
+        newArguments = base._rest.concat($arguments);
+      } else {
+        newArguments = $arguments;
+        newBase = base;
+      }
+      key = newBase._canonicalRecipe + (";<" + A._Universe__canonicalRecipeJoin(newArguments) + ">");
+      probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      rti = new A.Rti(null, null);
+      rti._kind = 10;
+      rti._primary = newBase;
+      rti._rest = newArguments;
+      rti._canonicalRecipe = key;
+      t1 = A._Universe__installTypeTests(universe, rti);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__lookupRecordRti(universe, partialShapeTag, fields) {
+      var rti, t1,
+        key = "+" + (partialShapeTag + "(" + A._Universe__canonicalRecipeJoin(fields) + ")"),
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      rti = new A.Rti(null, null);
+      rti._kind = 11;
+      rti._primary = partialShapeTag;
+      rti._rest = fields;
+      rti._canonicalRecipe = key;
+      t1 = A._Universe__installTypeTests(universe, rti);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__lookupFunctionRti(universe, returnType, parameters) {
+      var sep, key, probe, rti, t1,
+        s = returnType._canonicalRecipe,
+        requiredPositional = parameters._requiredPositional,
+        requiredPositionalLength = requiredPositional.length,
+        optionalPositional = parameters._optionalPositional,
+        optionalPositionalLength = optionalPositional.length,
+        named = parameters._named,
+        namedLength = named.length,
+        recipe = "(" + A._Universe__canonicalRecipeJoin(requiredPositional);
+      if (optionalPositionalLength > 0) {
+        sep = requiredPositionalLength > 0 ? "," : "";
+        recipe += sep + "[" + A._Universe__canonicalRecipeJoin(optionalPositional) + "]";
+      }
+      if (namedLength > 0) {
+        sep = requiredPositionalLength > 0 ? "," : "";
+        recipe += sep + "{" + A._Universe__canonicalRecipeJoinNamed(named) + "}";
+      }
+      key = s + (recipe + ")");
+      probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      rti = new A.Rti(null, null);
+      rti._kind = 12;
+      rti._primary = returnType;
+      rti._rest = parameters;
+      rti._canonicalRecipe = key;
+      t1 = A._Universe__installTypeTests(universe, rti);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__lookupGenericFunctionRti(universe, baseFunctionType, bounds, normalize) {
+      var t1,
+        key = baseFunctionType._canonicalRecipe + ("<" + A._Universe__canonicalRecipeJoin(bounds) + ">"),
+        probe = universe.eC.get(key);
+      if (probe != null)
+        return probe;
+      t1 = A._Universe__createGenericFunctionRti(universe, baseFunctionType, bounds, key, normalize);
+      universe.eC.set(key, t1);
+      return t1;
+    },
+    _Universe__createGenericFunctionRti(universe, baseFunctionType, bounds, key, normalize) {
+      var $length, typeArguments, count, i, bound, substitutedBase, substitutedBounds, rti;
+      if (normalize) {
+        $length = bounds.length;
+        typeArguments = A._Utils_newArrayOrEmpty($length);
+        for (count = 0, i = 0; i < $length; ++i) {
+          bound = bounds[i];
+          if (bound._kind === 1) {
+            typeArguments[i] = bound;
+            ++count;
+          }
+        }
+        if (count > 0) {
+          substitutedBase = A._substitute(universe, baseFunctionType, typeArguments, 0);
+          substitutedBounds = A._substituteArray(universe, bounds, typeArguments, 0);
+          return A._Universe__lookupGenericFunctionRti(universe, substitutedBase, substitutedBounds, bounds !== substitutedBounds);
+        }
+      }
+      rti = new A.Rti(null, null);
+      rti._kind = 13;
+      rti._primary = baseFunctionType;
+      rti._rest = bounds;
+      rti._canonicalRecipe = key;
+      return A._Universe__installTypeTests(universe, rti);
+    },
+    _Parser_create(universe, environment, recipe, normalize) {
+      return {u: universe, e: environment, r: recipe, s: [], p: 0, n: normalize};
+    },
+    _Parser_parse(parser) {
+      var t2, i, ch, t3, array, end, item,
+        source = parser.r,
+        t1 = parser.s;
+      for (t2 = source.length, i = 0; i < t2;) {
+        ch = source.charCodeAt(i);
+        if (ch >= 48 && ch <= 57)
+          i = A._Parser_handleDigit(i + 1, ch, source, t1);
+        else if ((((ch | 32) >>> 0) - 97 & 65535) < 26 || ch === 95 || ch === 36 || ch === 124)
+          i = A._Parser_handleIdentifier(parser, i, source, t1, false);
+        else if (ch === 46)
+          i = A._Parser_handleIdentifier(parser, i, source, t1, true);
+        else {
+          ++i;
+          switch (ch) {
+            case 44:
+              break;
+            case 58:
+              t1.push(false);
+              break;
+            case 33:
+              t1.push(true);
+              break;
+            case 59:
+              t1.push(A._Parser_toType(parser.u, parser.e, t1.pop()));
+              break;
+            case 94:
+              t1.push(A._Universe__lookupGenericFunctionParameterRti(parser.u, t1.pop()));
+              break;
+            case 35:
+              t1.push(A._Universe__lookupTerminalRti(parser.u, 5, "#"));
+              break;
+            case 64:
+              t1.push(A._Universe__lookupTerminalRti(parser.u, 2, "@"));
+              break;
+            case 126:
+              t1.push(A._Universe__lookupTerminalRti(parser.u, 3, "~"));
+              break;
+            case 60:
+              t1.push(parser.p);
+              parser.p = t1.length;
+              break;
+            case 62:
+              A._Parser_handleTypeArguments(parser, t1);
+              break;
+            case 38:
+              A._Parser_handleExtendedOperations(parser, t1);
+              break;
+            case 42:
+              t3 = parser.u;
+              t1.push(A._Universe__lookupStarRti(t3, A._Parser_toType(t3, parser.e, t1.pop()), parser.n));
+              break;
+            case 63:
+              t3 = parser.u;
+              t1.push(A._Universe__lookupQuestionRti(t3, A._Parser_toType(t3, parser.e, t1.pop()), parser.n));
+              break;
+            case 47:
+              t3 = parser.u;
+              t1.push(A._Universe__lookupFutureOrRti(t3, A._Parser_toType(t3, parser.e, t1.pop()), parser.n));
+              break;
+            case 40:
+              t1.push(-3);
+              t1.push(parser.p);
+              parser.p = t1.length;
+              break;
+            case 41:
+              A._Parser_handleArguments(parser, t1);
+              break;
+            case 91:
+              t1.push(parser.p);
+              parser.p = t1.length;
+              break;
+            case 93:
+              array = t1.splice(parser.p);
+              A._Parser_toTypes(parser.u, parser.e, array);
+              parser.p = t1.pop();
+              t1.push(array);
+              t1.push(-1);
+              break;
+            case 123:
+              t1.push(parser.p);
+              parser.p = t1.length;
+              break;
+            case 125:
+              array = t1.splice(parser.p);
+              A._Parser_toTypesNamed(parser.u, parser.e, array);
+              parser.p = t1.pop();
+              t1.push(array);
+              t1.push(-2);
+              break;
+            case 43:
+              end = source.indexOf("(", i);
+              t1.push(source.substring(i, end));
+              t1.push(-4);
+              t1.push(parser.p);
+              parser.p = t1.length;
+              i = end + 1;
+              break;
+            default:
+              throw "Bad character " + ch;
+          }
+        }
+      }
+      item = t1.pop();
+      return A._Parser_toType(parser.u, parser.e, item);
+    },
+    _Parser_handleDigit(i, digit, source, stack) {
+      var t1, ch,
+        value = digit - 48;
+      for (t1 = source.length; i < t1; ++i) {
+        ch = source.charCodeAt(i);
+        if (!(ch >= 48 && ch <= 57))
+          break;
+        value = value * 10 + (ch - 48);
+      }
+      stack.push(value);
+      return i;
+    },
+    _Parser_handleIdentifier(parser, start, source, stack, hasPeriod) {
+      var t1, ch, t2, string, environment, recipe,
+        i = start + 1;
+      for (t1 = source.length; i < t1; ++i) {
+        ch = source.charCodeAt(i);
+        if (ch === 46) {
+          if (hasPeriod)
+            break;
+          hasPeriod = true;
+        } else {
+          if (!((((ch | 32) >>> 0) - 97 & 65535) < 26 || ch === 95 || ch === 36 || ch === 124))
+            t2 = ch >= 48 && ch <= 57;
+          else
+            t2 = true;
+          if (!t2)
+            break;
+        }
+      }
+      string = source.substring(start, i);
+      if (hasPeriod) {
+        t1 = parser.u;
+        environment = parser.e;
+        if (environment._kind === 10)
+          environment = environment._primary;
+        recipe = A._Universe_findRule(t1, environment._primary)[string];
+        if (recipe == null)
+          A.throwExpression('No "' + string + '" in "' + A.Rti__getCanonicalRecipe(environment) + '"');
+        stack.push(A._Universe_evalInEnvironment(t1, environment, recipe));
+      } else
+        stack.push(string);
+      return i;
+    },
+    _Parser_handleTypeArguments(parser, stack) {
+      var base,
+        t1 = parser.u,
+        $arguments = A._Parser_collectArray(parser, stack),
+        head = stack.pop();
+      if (typeof head == "string")
+        stack.push(A._Universe__lookupInterfaceRti(t1, head, $arguments));
+      else {
+        base = A._Parser_toType(t1, parser.e, head);
+        switch (base._kind) {
+          case 12:
+            stack.push(A._Universe__lookupGenericFunctionRti(t1, base, $arguments, parser.n));
+            break;
+          default:
+            stack.push(A._Universe__lookupBindingRti(t1, base, $arguments));
+            break;
+        }
+      }
+    },
+    _Parser_handleArguments(parser, stack) {
+      var optionalPositional, named, requiredPositional, returnType, parameters, _null = null,
+        t1 = parser.u,
+        head = stack.pop();
+      if (typeof head == "number")
+        switch (head) {
+          case -1:
+            optionalPositional = stack.pop();
+            named = _null;
+            break;
+          case -2:
+            named = stack.pop();
+            optionalPositional = _null;
+            break;
+          default:
+            stack.push(head);
+            named = _null;
+            optionalPositional = named;
+            break;
+        }
+      else {
+        stack.push(head);
+        named = _null;
+        optionalPositional = named;
+      }
+      requiredPositional = A._Parser_collectArray(parser, stack);
+      head = stack.pop();
+      switch (head) {
+        case -3:
+          head = stack.pop();
+          if (optionalPositional == null)
+            optionalPositional = t1.sEA;
+          if (named == null)
+            named = t1.sEA;
+          returnType = A._Parser_toType(t1, parser.e, head);
+          parameters = new A._FunctionParameters();
+          parameters._requiredPositional = requiredPositional;
+          parameters._optionalPositional = optionalPositional;
+          parameters._named = named;
+          stack.push(A._Universe__lookupFunctionRti(t1, returnType, parameters));
+          return;
+        case -4:
+          stack.push(A._Universe__lookupRecordRti(t1, stack.pop(), requiredPositional));
+          return;
+        default:
+          throw A.wrapException(A.AssertionError$("Unexpected state under `()`: " + A.S(head)));
+      }
+    },
+    _Parser_handleExtendedOperations(parser, stack) {
+      var $top = stack.pop();
+      if (0 === $top) {
+        stack.push(A._Universe__lookupTerminalRti(parser.u, 1, "0&"));
+        return;
+      }
+      if (1 === $top) {
+        stack.push(A._Universe__lookupTerminalRti(parser.u, 4, "1&"));
+        return;
+      }
+      throw A.wrapException(A.AssertionError$("Unexpected extended operation " + A.S($top)));
+    },
+    _Parser_collectArray(parser, stack) {
+      var array = stack.splice(parser.p);
+      A._Parser_toTypes(parser.u, parser.e, array);
+      parser.p = stack.pop();
+      return array;
+    },
+    _Parser_toType(universe, environment, item) {
+      if (typeof item == "string")
+        return A._Universe__lookupInterfaceRti(universe, item, universe.sEA);
+      else if (typeof item == "number") {
+        environment.toString;
+        return A._Parser_indexToType(universe, environment, item);
+      } else
+        return item;
+    },
+    _Parser_toTypes(universe, environment, items) {
+      var i,
+        $length = items.length;
+      for (i = 0; i < $length; ++i)
+        items[i] = A._Parser_toType(universe, environment, items[i]);
+    },
+    _Parser_toTypesNamed(universe, environment, items) {
+      var i,
+        $length = items.length;
+      for (i = 2; i < $length; i += 3)
+        items[i] = A._Parser_toType(universe, environment, items[i]);
+    },
+    _Parser_indexToType(universe, environment, index) {
+      var typeArguments, len,
+        kind = environment._kind;
+      if (kind === 10) {
+        if (index === 0)
+          return environment._primary;
+        typeArguments = environment._rest;
+        len = typeArguments.length;
+        if (index <= len)
+          return typeArguments[index - 1];
+        index -= len;
+        environment = environment._primary;
+        kind = environment._kind;
+      } else if (index === 0)
+        return environment;
+      if (kind !== 9)
+        throw A.wrapException(A.AssertionError$("Indexed base must be an interface type"));
+      typeArguments = environment._rest;
+      if (index <= typeArguments.length)
+        return typeArguments[index - 1];
+      throw A.wrapException(A.AssertionError$("Bad index " + index + " for " + environment.toString$0(0)));
+    },
+    isSubtype(universe, s, t) {
+      var result,
+        sCache = s._isSubtypeCache;
+      if (sCache == null)
+        sCache = s._isSubtypeCache = new Map();
+      result = sCache.get(t);
+      if (result == null) {
+        result = A._isSubtype(universe, s, null, t, null, false) ? 1 : 0;
+        sCache.set(t, result);
+      }
+      if (0 === result)
+        return false;
+      if (1 === result)
+        return true;
+      return true;
+    },
+    _isSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
+      var t1, sKind, leftTypeVariable, tKind, t2, sBounds, tBounds, sLength, i, sBound, tBound;
+      if (s === t)
+        return true;
+      if (!A.isSoundTopType(t))
+        t1 = t === type$.legacy_Object;
+      else
+        t1 = true;
+      if (t1)
+        return true;
+      sKind = s._kind;
+      if (sKind === 4)
+        return true;
+      if (A.isSoundTopType(s))
+        return false;
+      t1 = s._kind;
+      if (t1 === 1)
+        return true;
+      leftTypeVariable = sKind === 14;
+      if (leftTypeVariable)
+        if (A._isSubtype(universe, sEnv[s._primary], sEnv, t, tEnv, false))
+          return true;
+      tKind = t._kind;
+      t1 = s === type$.Null || s === type$.JSNull;
+      if (t1) {
+        if (tKind === 8)
+          return A._isSubtype(universe, s, sEnv, t._primary, tEnv, false);
+        return t === type$.Null || t === type$.JSNull || tKind === 7 || tKind === 6;
+      }
+      if (t === type$.Object) {
+        if (sKind === 8)
+          return A._isSubtype(universe, s._primary, sEnv, t, tEnv, false);
+        if (sKind === 6)
+          return A._isSubtype(universe, s._primary, sEnv, t, tEnv, false);
+        return sKind !== 7;
+      }
+      if (sKind === 6)
+        return A._isSubtype(universe, s._primary, sEnv, t, tEnv, false);
+      if (tKind === 6) {
+        t1 = A.Rti__getQuestionFromStar(universe, t);
+        return A._isSubtype(universe, s, sEnv, t1, tEnv, false);
+      }
+      if (sKind === 8) {
+        if (!A._isSubtype(universe, s._primary, sEnv, t, tEnv, false))
+          return false;
+        return A._isSubtype(universe, A.Rti__getFutureFromFutureOr(universe, s), sEnv, t, tEnv, false);
+      }
+      if (sKind === 7) {
+        t1 = A._isSubtype(universe, type$.Null, sEnv, t, tEnv, false);
+        return t1 && A._isSubtype(universe, s._primary, sEnv, t, tEnv, false);
+      }
+      if (tKind === 8) {
+        if (A._isSubtype(universe, s, sEnv, t._primary, tEnv, false))
+          return true;
+        return A._isSubtype(universe, s, sEnv, A.Rti__getFutureFromFutureOr(universe, t), tEnv, false);
+      }
+      if (tKind === 7) {
+        t1 = A._isSubtype(universe, s, sEnv, type$.Null, tEnv, false);
+        return t1 || A._isSubtype(universe, s, sEnv, t._primary, tEnv, false);
+      }
+      if (leftTypeVariable)
+        return false;
+      t1 = sKind !== 12;
+      if ((!t1 || sKind === 13) && t === type$.Function)
+        return true;
+      t2 = sKind === 11;
+      if (t2 && t === type$.Record)
+        return true;
+      if (tKind === 13) {
+        if (s === type$.JavaScriptFunction)
+          return true;
+        if (sKind !== 13)
+          return false;
+        sBounds = s._rest;
+        tBounds = t._rest;
+        sLength = sBounds.length;
+        if (sLength !== tBounds.length)
+          return false;
+        sEnv = sEnv == null ? sBounds : sBounds.concat(sEnv);
+        tEnv = tEnv == null ? tBounds : tBounds.concat(tEnv);
+        for (i = 0; i < sLength; ++i) {
+          sBound = sBounds[i];
+          tBound = tBounds[i];
+          if (!A._isSubtype(universe, sBound, sEnv, tBound, tEnv, false) || !A._isSubtype(universe, tBound, tEnv, sBound, sEnv, false))
+            return false;
+        }
+        return A._isFunctionSubtype(universe, s._primary, sEnv, t._primary, tEnv, false);
+      }
+      if (tKind === 12) {
+        if (s === type$.JavaScriptFunction)
+          return true;
+        if (t1)
+          return false;
+        return A._isFunctionSubtype(universe, s, sEnv, t, tEnv, false);
+      }
+      if (sKind === 9) {
+        if (tKind !== 9)
+          return false;
+        return A._isInterfaceSubtype(universe, s, sEnv, t, tEnv, false);
+      }
+      if (t2 && tKind === 11)
+        return A._isRecordSubtype(universe, s, sEnv, t, tEnv, false);
+      return false;
+    },
+    _isFunctionSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
+      var sParameters, tParameters, sRequiredPositional, tRequiredPositional, sRequiredPositionalLength, tRequiredPositionalLength, requiredPositionalDelta, sOptionalPositional, tOptionalPositional, sOptionalPositionalLength, tOptionalPositionalLength, i, t1, sNamed, tNamed, sNamedLength, tNamedLength, sIndex, tIndex, tName, sName, sIsRequired;
+      if (!A._isSubtype(universe, s._primary, sEnv, t._primary, tEnv, false))
+        return false;
+      sParameters = s._rest;
+      tParameters = t._rest;
+      sRequiredPositional = sParameters._requiredPositional;
+      tRequiredPositional = tParameters._requiredPositional;
+      sRequiredPositionalLength = sRequiredPositional.length;
+      tRequiredPositionalLength = tRequiredPositional.length;
+      if (sRequiredPositionalLength > tRequiredPositionalLength)
+        return false;
+      requiredPositionalDelta = tRequiredPositionalLength - sRequiredPositionalLength;
+      sOptionalPositional = sParameters._optionalPositional;
+      tOptionalPositional = tParameters._optionalPositional;
+      sOptionalPositionalLength = sOptionalPositional.length;
+      tOptionalPositionalLength = tOptionalPositional.length;
+      if (sRequiredPositionalLength + sOptionalPositionalLength < tRequiredPositionalLength + tOptionalPositionalLength)
+        return false;
+      for (i = 0; i < sRequiredPositionalLength; ++i) {
+        t1 = sRequiredPositional[i];
+        if (!A._isSubtype(universe, tRequiredPositional[i], tEnv, t1, sEnv, false))
+          return false;
+      }
+      for (i = 0; i < requiredPositionalDelta; ++i) {
+        t1 = sOptionalPositional[i];
+        if (!A._isSubtype(universe, tRequiredPositional[sRequiredPositionalLength + i], tEnv, t1, sEnv, false))
+          return false;
+      }
+      for (i = 0; i < tOptionalPositionalLength; ++i) {
+        t1 = sOptionalPositional[requiredPositionalDelta + i];
+        if (!A._isSubtype(universe, tOptionalPositional[i], tEnv, t1, sEnv, false))
+          return false;
+      }
+      sNamed = sParameters._named;
+      tNamed = tParameters._named;
+      sNamedLength = sNamed.length;
+      tNamedLength = tNamed.length;
+      for (sIndex = 0, tIndex = 0; tIndex < tNamedLength; tIndex += 3) {
+        tName = tNamed[tIndex];
+        for (; true;) {
+          if (sIndex >= sNamedLength)
+            return false;
+          sName = sNamed[sIndex];
+          sIndex += 3;
+          if (tName < sName)
+            return false;
+          sIsRequired = sNamed[sIndex - 2];
+          if (sName < tName) {
+            if (sIsRequired)
+              return false;
+            continue;
+          }
+          t1 = tNamed[tIndex + 1];
+          if (sIsRequired && !t1)
+            return false;
+          t1 = sNamed[sIndex - 1];
+          if (!A._isSubtype(universe, tNamed[tIndex + 2], tEnv, t1, sEnv, false))
+            return false;
+          break;
+        }
+      }
+      for (; sIndex < sNamedLength;) {
+        if (sNamed[sIndex + 1])
+          return false;
+        sIndex += 3;
+      }
+      return true;
+    },
+    _isInterfaceSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
+      var rule, recipes, $length, supertypeArgs, i,
+        sName = s._primary,
+        tName = t._primary;
+      for (; sName !== tName;) {
+        rule = universe.tR[sName];
+        if (rule == null)
+          return false;
+        if (typeof rule == "string") {
+          sName = rule;
+          continue;
+        }
+        recipes = rule[tName];
+        if (recipes == null)
+          return false;
+        $length = recipes.length;
+        supertypeArgs = $length > 0 ? new Array($length) : init.typeUniverse.sEA;
+        for (i = 0; i < $length; ++i)
+          supertypeArgs[i] = A._Universe_evalInEnvironment(universe, s, recipes[i]);
+        return A._areArgumentsSubtypes(universe, supertypeArgs, null, sEnv, t._rest, tEnv, false);
+      }
+      return A._areArgumentsSubtypes(universe, s._rest, null, sEnv, t._rest, tEnv, false);
+    },
+    _areArgumentsSubtypes(universe, sArgs, sVariances, sEnv, tArgs, tEnv, isLegacy) {
+      var i,
+        $length = sArgs.length;
+      for (i = 0; i < $length; ++i)
+        if (!A._isSubtype(universe, sArgs[i], sEnv, tArgs[i], tEnv, false))
+          return false;
+      return true;
+    },
+    _isRecordSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
+      var i,
+        sFields = s._rest,
+        tFields = t._rest,
+        sCount = sFields.length;
+      if (sCount !== tFields.length)
+        return false;
+      if (s._primary !== t._primary)
+        return false;
+      for (i = 0; i < sCount; ++i)
+        if (!A._isSubtype(universe, sFields[i], sEnv, tFields[i], tEnv, false))
+          return false;
+      return true;
+    },
+    isNullable(t) {
+      var t1,
+        kind = t._kind;
+      if (!(t === type$.Null || t === type$.JSNull))
+        if (!A.isSoundTopType(t))
+          if (kind !== 7)
+            if (!(kind === 6 && A.isNullable(t._primary)))
+              t1 = kind === 8 && A.isNullable(t._primary);
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    isDefinitelyTopType(t) {
+      var t1;
+      if (!A.isSoundTopType(t))
+        t1 = t === type$.legacy_Object;
+      else
+        t1 = true;
+      return t1;
+    },
+    isSoundTopType(t) {
+      var kind = t._kind;
+      return kind === 2 || kind === 3 || kind === 4 || kind === 5 || t === type$.nullable_Object;
+    },
+    _Utils_objectAssign(o, other) {
+      var i, key,
+        keys = Object.keys(other),
+        $length = keys.length;
+      for (i = 0; i < $length; ++i) {
+        key = keys[i];
+        o[key] = other[key];
+      }
+    },
+    _Utils_newArrayOrEmpty($length) {
+      return $length > 0 ? new Array($length) : init.typeUniverse.sEA;
+    },
+    Rti: function Rti(t0, t1) {
+      var _ = this;
+      _._as = t0;
+      _._is = t1;
+      _._cachedRuntimeType = _._specializedTestResource = _._isSubtypeCache = _._precomputed1 = null;
+      _._kind = 0;
+      _._canonicalRecipe = _._bindCache = _._evalCache = _._rest = _._primary = null;
+    },
+    _FunctionParameters: function _FunctionParameters() {
+      this._named = this._optionalPositional = this._requiredPositional = null;
+    },
+    _Type: function _Type(t0) {
+      this._rti = t0;
+    },
+    _Error: function _Error() {
+    },
+    _TypeError: function _TypeError(t0) {
+      this.__rti$_message = t0;
+    },
+    _AsyncRun__initializeScheduleImmediate() {
+      var div, span, t1 = {};
+      if (self.scheduleImmediate != null)
+        return A.async__AsyncRun__scheduleImmediateJsOverride$closure();
+      if (self.MutationObserver != null && self.document != null) {
+        div = self.document.createElement("div");
+        span = self.document.createElement("span");
+        t1.storedCallback = null;
+        new self.MutationObserver(A.convertDartClosureToJS(new A._AsyncRun__initializeScheduleImmediate_internalCallback(t1), 1)).observe(div, {childList: true});
+        return new A._AsyncRun__initializeScheduleImmediate_closure(t1, div, span);
+      } else if (self.setImmediate != null)
+        return A.async__AsyncRun__scheduleImmediateWithSetImmediate$closure();
+      return A.async__AsyncRun__scheduleImmediateWithTimer$closure();
+    },
+    _AsyncRun__scheduleImmediateJsOverride(callback) {
+      self.scheduleImmediate(A.convertDartClosureToJS(new A._AsyncRun__scheduleImmediateJsOverride_internalCallback(callback), 0));
+    },
+    _AsyncRun__scheduleImmediateWithSetImmediate(callback) {
+      self.setImmediate(A.convertDartClosureToJS(new A._AsyncRun__scheduleImmediateWithSetImmediate_internalCallback(callback), 0));
+    },
+    _AsyncRun__scheduleImmediateWithTimer(callback) {
+      A.Timer__createTimer(B.Duration_0, callback);
+    },
+    Timer__createTimer(duration, callback) {
+      var milliseconds = B.JSInt_methods._tdivFast$1(duration._duration, 1000);
+      return A._TimerImpl$(milliseconds < 0 ? 0 : milliseconds, callback);
+    },
+    _TimerImpl$(milliseconds, callback) {
+      var t1 = new A._TimerImpl(true);
+      t1._TimerImpl$2(milliseconds, callback);
+      return t1;
+    },
+    _TimerImpl$periodic(milliseconds, callback) {
+      var t1 = new A._TimerImpl(false);
+      t1._TimerImpl$periodic$2(milliseconds, callback);
+      return t1;
+    },
+    _makeAsyncAwaitCompleter($T) {
+      return new A._AsyncAwaitCompleter(new A._Future($.Zone__current, $T._eval$1("_Future<0>")), $T._eval$1("_AsyncAwaitCompleter<0>"));
+    },
+    _asyncStartSync(bodyFunction, completer) {
+      bodyFunction.call$2(0, null);
+      completer.isSync = true;
+      return completer._future;
+    },
+    _asyncAwait(object, bodyFunction) {
+      A._awaitOnObject(object, bodyFunction);
+    },
+    _asyncReturn(object, completer) {
+      completer.complete$1(object);
+    },
+    _asyncRethrow(object, completer) {
+      completer.completeError$2(A.unwrapException(object), A.getTraceFromException(object));
+    },
+    _awaitOnObject(object, bodyFunction) {
+      var t1, future,
+        thenCallback = new A._awaitOnObject_closure(bodyFunction),
+        errorCallback = new A._awaitOnObject_closure0(bodyFunction);
+      if (object instanceof A._Future)
+        object._thenAwait$1$2(thenCallback, errorCallback, type$.dynamic);
+      else {
+        t1 = type$.dynamic;
+        if (object instanceof A._Future)
+          object.then$1$2$onError(0, thenCallback, errorCallback, t1);
+        else {
+          future = new A._Future($.Zone__current, type$._Future_dynamic);
+          future._state = 8;
+          future._resultOrListeners = object;
+          future._thenAwait$1$2(thenCallback, errorCallback, t1);
+        }
+      }
+    },
+    _wrapJsFunctionForAsync($function) {
+      var $protected = function(fn, ERROR) {
+        return function(errorCode, result) {
+          while (true) {
+            try {
+              fn(errorCode, result);
+              break;
+            } catch (error) {
+              result = error;
+              errorCode = ERROR;
+            }
+          }
+        };
+      }($function, 1);
+      return $.Zone__current.registerBinaryCallback$3$1(new A._wrapJsFunctionForAsync_closure($protected), type$.void, type$.int, type$.dynamic);
+    },
+    _SyncStarIterator__terminatedBody(_1, _2, _3) {
+      return 0;
+    },
+    AsyncError$(error, stackTrace) {
+      var t1 = A.checkNotNullable(error, "error", type$.Object);
+      return new A.AsyncError(t1, stackTrace == null ? A.AsyncError_defaultStackTrace(error) : stackTrace);
+    },
+    AsyncError_defaultStackTrace(error) {
+      var stackTrace;
+      if (type$.Error._is(error)) {
+        stackTrace = error.get$stackTrace();
+        if (stackTrace != null)
+          return stackTrace;
+      }
+      return B._StringStackTrace_uwd;
+    },
+    Future_Future$value(value, $T) {
+      var t1;
+      $T._as(value);
+      t1 = new A._Future($.Zone__current, $T._eval$1("_Future<0>"));
+      t1._asyncComplete$1(value);
+      return t1;
+    },
+    Future_Future$error(error, stackTrace, $T) {
+      var t1, replacement;
+      A.checkNotNullable(error, "error", type$.Object);
+      t1 = $.Zone__current;
+      if (t1 !== B.C__RootZone) {
+        replacement = t1.errorCallback$2(error, stackTrace);
+        if (replacement != null) {
+          error = replacement.error;
+          stackTrace = replacement.stackTrace;
+        }
+      }
+      if (stackTrace == null)
+        stackTrace = A.AsyncError_defaultStackTrace(error);
+      t1 = new A._Future($.Zone__current, $T._eval$1("_Future<0>"));
+      t1._asyncCompleteError$2(error, stackTrace);
+      return t1;
+    },
+    Future_wait(futures, eagerError, $T) {
+      var handleError, future, pos, e, st, t1, t2, exception, _box_0 = {}, cleanUp = null,
+        _future = new A._Future($.Zone__current, $T._eval$1("_Future<List<0>>"));
+      _box_0.values = null;
+      _box_0.remaining = 0;
+      _box_0.stackTrace = _box_0.error = null;
+      handleError = new A.Future_wait_handleError(_box_0, cleanUp, eagerError, _future);
+      try {
+        for (t1 = J.get$iterator$ax(futures), t2 = type$.Null; t1.moveNext$0();) {
+          future = t1.get$current(t1);
+          pos = _box_0.remaining;
+          J.then$1$2$onError$x(future, new A.Future_wait_closure(_box_0, pos, _future, $T, cleanUp, eagerError), handleError, t2);
+          ++_box_0.remaining;
+        }
+        t1 = _box_0.remaining;
+        if (t1 === 0) {
+          t1 = _future;
+          t1._completeWithValue$1(A._setArrayType([], $T._eval$1("JSArray<0>")));
+          return t1;
+        }
+        _box_0.values = A.List_List$filled(t1, null, false, $T._eval$1("0?"));
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        st = A.getTraceFromException(exception);
+        if (_box_0.remaining === 0 || eagerError)
+          return A.Future_Future$error(e, st, $T._eval$1("List<0>"));
+        else {
+          _box_0.error = e;
+          _box_0.stackTrace = st;
+        }
+      }
+      return _future;
+    },
+    _Future$zoneValue(value, _zone, $T) {
+      var t1 = new A._Future(_zone, $T._eval$1("_Future<0>"));
+      t1._state = 8;
+      t1._resultOrListeners = value;
+      return t1;
+    },
+    _Future$value(value, $T) {
+      var t1 = new A._Future($.Zone__current, $T._eval$1("_Future<0>"));
+      t1._state = 8;
+      t1._resultOrListeners = value;
+      return t1;
+    },
+    _Future__chainCoreFutureSync(source, target) {
+      var t1, listeners;
+      for (; t1 = source._state, (t1 & 4) !== 0;)
+        source = source._resultOrListeners;
+      t1 |= target._state & 1;
+      source._state = t1;
+      if ((t1 & 24) !== 0) {
+        listeners = target._removeListeners$0();
+        target._cloneResult$1(source);
+        A._Future__propagateToListeners(target, listeners);
+      } else {
+        listeners = target._resultOrListeners;
+        target._setChained$1(source);
+        source._prependListeners$1(listeners);
+      }
+    },
+    _Future__chainCoreFutureAsync(source, target) {
+      var t2, listeners, _box_0 = {},
+        t1 = _box_0.source = source;
+      for (; t2 = t1._state, (t2 & 4) !== 0;) {
+        t1 = t1._resultOrListeners;
+        _box_0.source = t1;
+      }
+      if ((t2 & 24) === 0) {
+        listeners = target._resultOrListeners;
+        target._setChained$1(t1);
+        _box_0.source._prependListeners$1(listeners);
+        return;
+      }
+      if ((t2 & 16) === 0 && target._resultOrListeners == null) {
+        target._cloneResult$1(t1);
+        return;
+      }
+      target._state ^= 2;
+      target._zone.scheduleMicrotask$1(new A._Future__chainCoreFutureAsync_closure(_box_0, target));
+    },
+    _Future__propagateToListeners(source, listeners) {
+      var _box_0, t2, t3, hasError, nextListener, nextListener0, sourceResult, t4, zone, oldZone, result, current, _box_1 = {},
+        t1 = _box_1.source = source;
+      for (; true;) {
+        _box_0 = {};
+        t2 = t1._state;
+        t3 = (t2 & 16) === 0;
+        hasError = !t3;
+        if (listeners == null) {
+          if (hasError && (t2 & 1) === 0) {
+            t2 = t1._resultOrListeners;
+            t1._zone.handleUncaughtError$2(t2.error, t2.stackTrace);
+          }
+          return;
+        }
+        _box_0.listener = listeners;
+        nextListener = listeners._nextListener;
+        for (t1 = listeners; nextListener != null; t1 = nextListener, nextListener = nextListener0) {
+          t1._nextListener = null;
+          A._Future__propagateToListeners(_box_1.source, t1);
+          _box_0.listener = nextListener;
+          nextListener0 = nextListener._nextListener;
+        }
+        t2 = _box_1.source;
+        sourceResult = t2._resultOrListeners;
+        _box_0.listenerHasError = hasError;
+        _box_0.listenerValueOrError = sourceResult;
+        if (t3) {
+          t4 = t1.state;
+          t4 = (t4 & 1) !== 0 || (t4 & 15) === 8;
+        } else
+          t4 = true;
+        if (t4) {
+          zone = t1.result._zone;
+          if (hasError) {
+            t1 = t2._zone;
+            t1 = !(t1 === zone || t1.get$errorZone() === zone.get$errorZone());
+          } else
+            t1 = false;
+          if (t1) {
+            t1 = _box_1.source;
+            t2 = t1._resultOrListeners;
+            t1._zone.handleUncaughtError$2(t2.error, t2.stackTrace);
+            return;
+          }
+          oldZone = $.Zone__current;
+          if (oldZone !== zone)
+            $.Zone__current = zone;
+          else
+            oldZone = null;
+          t1 = _box_0.listener.state;
+          if ((t1 & 15) === 8)
+            new A._Future__propagateToListeners_handleWhenCompleteCallback(_box_0, _box_1, hasError).call$0();
+          else if (t3) {
+            if ((t1 & 1) !== 0)
+              new A._Future__propagateToListeners_handleValueCallback(_box_0, sourceResult).call$0();
+          } else if ((t1 & 2) !== 0)
+            new A._Future__propagateToListeners_handleError(_box_1, _box_0).call$0();
+          if (oldZone != null)
+            $.Zone__current = oldZone;
+          t1 = _box_0.listenerValueOrError;
+          if (t1 instanceof A._Future) {
+            t2 = _box_0.listener.$ti;
+            t2 = t2._eval$1("Future<2>")._is(t1) || !t2._rest[1]._is(t1);
+          } else
+            t2 = false;
+          if (t2) {
+            result = _box_0.listener.result;
+            if ((t1._state & 24) !== 0) {
+              current = result._resultOrListeners;
+              result._resultOrListeners = null;
+              listeners = result._reverseListeners$1(current);
+              result._state = t1._state & 30 | result._state & 1;
+              result._resultOrListeners = t1._resultOrListeners;
+              _box_1.source = t1;
+              continue;
+            } else
+              A._Future__chainCoreFutureSync(t1, result);
+            return;
+          }
+        }
+        result = _box_0.listener.result;
+        current = result._resultOrListeners;
+        result._resultOrListeners = null;
+        listeners = result._reverseListeners$1(current);
+        t1 = _box_0.listenerHasError;
+        t2 = _box_0.listenerValueOrError;
+        if (!t1) {
+          result._state = 8;
+          result._resultOrListeners = t2;
+        } else {
+          result._state = result._state & 1 | 16;
+          result._resultOrListeners = t2;
+        }
+        _box_1.source = result;
+        t1 = result;
+      }
+    },
+    _registerErrorHandler(errorHandler, zone) {
+      if (type$.dynamic_Function_Object_StackTrace._is(errorHandler))
+        return zone.registerBinaryCallback$3$1(errorHandler, type$.dynamic, type$.Object, type$.StackTrace);
+      if (type$.dynamic_Function_Object._is(errorHandler))
+        return zone.registerUnaryCallback$2$1(errorHandler, type$.dynamic, type$.Object);
+      throw A.wrapException(A.ArgumentError$value(errorHandler, "onError", string$.Error_));
+    },
+    _microtaskLoop() {
+      var entry, next;
+      for (entry = $._nextCallback; entry != null; entry = $._nextCallback) {
+        $._lastPriorityCallback = null;
+        next = entry.next;
+        $._nextCallback = next;
+        if (next == null)
+          $._lastCallback = null;
+        entry.callback.call$0();
+      }
+    },
+    _startMicrotaskLoop() {
+      $._isInCallbackLoop = true;
+      try {
+        A._microtaskLoop();
+      } finally {
+        $._lastPriorityCallback = null;
+        $._isInCallbackLoop = false;
+        if ($._nextCallback != null)
+          $.$get$_AsyncRun__scheduleImmediateClosure().call$1(A.async___startMicrotaskLoop$closure());
+      }
+    },
+    _scheduleAsyncCallback(callback) {
+      var newEntry = new A._AsyncCallbackEntry(callback),
+        lastCallback = $._lastCallback;
+      if (lastCallback == null) {
+        $._nextCallback = $._lastCallback = newEntry;
+        if (!$._isInCallbackLoop)
+          $.$get$_AsyncRun__scheduleImmediateClosure().call$1(A.async___startMicrotaskLoop$closure());
+      } else
+        $._lastCallback = lastCallback.next = newEntry;
+    },
+    _schedulePriorityAsyncCallback(callback) {
+      var entry, lastPriorityCallback, next,
+        t1 = $._nextCallback;
+      if (t1 == null) {
+        A._scheduleAsyncCallback(callback);
+        $._lastPriorityCallback = $._lastCallback;
+        return;
+      }
+      entry = new A._AsyncCallbackEntry(callback);
+      lastPriorityCallback = $._lastPriorityCallback;
+      if (lastPriorityCallback == null) {
+        entry.next = t1;
+        $._nextCallback = $._lastPriorityCallback = entry;
+      } else {
+        next = lastPriorityCallback.next;
+        entry.next = next;
+        $._lastPriorityCallback = lastPriorityCallback.next = entry;
+        if (next == null)
+          $._lastCallback = entry;
+      }
+    },
+    scheduleMicrotask(callback) {
+      var t1, _null = null,
+        currentZone = $.Zone__current;
+      if (B.C__RootZone === currentZone) {
+        A._rootScheduleMicrotask(_null, _null, B.C__RootZone, callback);
+        return;
+      }
+      if (B.C__RootZone === currentZone.get$_scheduleMicrotask().zone)
+        t1 = B.C__RootZone.get$errorZone() === currentZone.get$errorZone();
+      else
+        t1 = false;
+      if (t1) {
+        A._rootScheduleMicrotask(_null, _null, currentZone, currentZone.registerCallback$1$1(callback, type$.void));
+        return;
+      }
+      t1 = $.Zone__current;
+      t1.scheduleMicrotask$1(t1.bindCallbackGuarded$1(callback));
+    },
+    Stream_Stream$fromFuture(future, $T) {
+      var _null = null,
+        t1 = $T._eval$1("_SyncStreamController<0>"),
+        controller = new A._SyncStreamController(_null, _null, _null, _null, t1);
+      future.then$1$2$onError(0, new A.Stream_Stream$fromFuture_closure(controller, $T), new A.Stream_Stream$fromFuture_closure0(controller), type$.Null);
+      return new A._ControllerStream(controller, t1._eval$1("_ControllerStream<1>"));
+    },
+    StreamIterator_StreamIterator(stream) {
+      return new A._StreamIterator(A.checkNotNullable(stream, "stream", type$.Object));
+    },
+    StreamController_StreamController(onCancel, onListen, onPause, onResume, sync, $T) {
+      return sync ? new A._SyncStreamController(onListen, onPause, onResume, onCancel, $T._eval$1("_SyncStreamController<0>")) : new A._AsyncStreamController(onListen, onPause, onResume, onCancel, $T._eval$1("_AsyncStreamController<0>"));
+    },
+    _runGuarded(notificationHandler) {
+      var e, s, exception;
+      if (notificationHandler == null)
+        return;
+      try {
+        notificationHandler.call$0();
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        $.Zone__current.handleUncaughtError$2(e, s);
+      }
+    },
+    _ControllerSubscription$(_controller, onData, onError, onDone, cancelOnError, $T) {
+      var t1 = $.Zone__current,
+        t2 = cancelOnError ? 1 : 0,
+        t3 = onError != null ? 32 : 0,
+        t4 = A._BufferingStreamSubscription__registerDataHandler(t1, onData, $T),
+        t5 = A._BufferingStreamSubscription__registerErrorHandler(t1, onError),
+        t6 = onDone == null ? A.async___nullDoneHandler$closure() : onDone;
+      return new A._ControllerSubscription(_controller, t4, t5, t1.registerCallback$1$1(t6, type$.void), t1, t2 | t3, $T._eval$1("_ControllerSubscription<0>"));
+    },
+    _AddStreamState_makeErrorHandler(controller) {
+      return new A._AddStreamState_makeErrorHandler_closure(controller);
+    },
+    _BufferingStreamSubscription__registerDataHandler(zone, handleData, $T) {
+      var t1 = handleData == null ? A.async___nullDataHandler$closure() : handleData;
+      return zone.registerUnaryCallback$2$1(t1, type$.void, $T);
+    },
+    _BufferingStreamSubscription__registerErrorHandler(zone, handleError) {
+      if (handleError == null)
+        handleError = A.async___nullErrorHandler$closure();
+      if (type$.void_Function_Object_StackTrace._is(handleError))
+        return zone.registerBinaryCallback$3$1(handleError, type$.dynamic, type$.Object, type$.StackTrace);
+      if (type$.void_Function_Object._is(handleError))
+        return zone.registerUnaryCallback$2$1(handleError, type$.dynamic, type$.Object);
+      throw A.wrapException(A.ArgumentError$("handleError callback must take either an Object (the error), or both an Object (the error) and a StackTrace.", null));
+    },
+    _nullDataHandler(value) {
+    },
+    _nullErrorHandler(error, stackTrace) {
+      $.Zone__current.handleUncaughtError$2(error, stackTrace);
+    },
+    _nullDoneHandler() {
+    },
+    Timer_Timer(duration, callback) {
+      var t1 = $.Zone__current;
+      if (t1 === B.C__RootZone)
+        return t1.createTimer$2(duration, callback);
+      return t1.createTimer$2(duration, t1.bindCallbackGuarded$1(callback));
+    },
+    _rootHandleUncaughtError($self, $parent, zone, error, stackTrace) {
+      A._rootHandleError(error, stackTrace);
+    },
+    _rootHandleError(error, stackTrace) {
+      A._schedulePriorityAsyncCallback(new A._rootHandleError_closure(error, stackTrace));
+    },
+    _rootRun($self, $parent, zone, f) {
+      var old,
+        t1 = $.Zone__current;
+      if (t1 === zone)
+        return f.call$0();
+      $.Zone__current = zone;
+      old = t1;
+      try {
+        t1 = f.call$0();
+        return t1;
+      } finally {
+        $.Zone__current = old;
+      }
+    },
+    _rootRunUnary($self, $parent, zone, f, arg) {
+      var old,
+        t1 = $.Zone__current;
+      if (t1 === zone)
+        return f.call$1(arg);
+      $.Zone__current = zone;
+      old = t1;
+      try {
+        t1 = f.call$1(arg);
+        return t1;
+      } finally {
+        $.Zone__current = old;
+      }
+    },
+    _rootRunBinary($self, $parent, zone, f, arg1, arg2) {
+      var old,
+        t1 = $.Zone__current;
+      if (t1 === zone)
+        return f.call$2(arg1, arg2);
+      $.Zone__current = zone;
+      old = t1;
+      try {
+        t1 = f.call$2(arg1, arg2);
+        return t1;
+      } finally {
+        $.Zone__current = old;
+      }
+    },
+    _rootRegisterCallback($self, $parent, zone, f) {
+      return f;
+    },
+    _rootRegisterUnaryCallback($self, $parent, zone, f) {
+      return f;
+    },
+    _rootRegisterBinaryCallback($self, $parent, zone, f) {
+      return f;
+    },
+    _rootErrorCallback($self, $parent, zone, error, stackTrace) {
+      return null;
+    },
+    _rootScheduleMicrotask($self, $parent, zone, f) {
+      var t1, t2;
+      if (B.C__RootZone !== zone) {
+        t1 = B.C__RootZone.get$errorZone();
+        t2 = zone.get$errorZone();
+        f = t1 !== t2 ? zone.bindCallbackGuarded$1(f) : zone.bindCallback$1$1(f, type$.void);
+      }
+      A._scheduleAsyncCallback(f);
+    },
+    _rootCreateTimer($self, $parent, zone, duration, callback) {
+      return A.Timer__createTimer(duration, B.C__RootZone !== zone ? zone.bindCallback$1$1(callback, type$.void) : callback);
+    },
+    _rootCreatePeriodicTimer($self, $parent, zone, duration, callback) {
+      var milliseconds;
+      if (B.C__RootZone !== zone)
+        callback = zone.bindUnaryCallback$2$1(callback, type$.void, type$.Timer);
+      milliseconds = B.JSInt_methods._tdivFast$1(duration._duration, 1000);
+      return A._TimerImpl$periodic(milliseconds < 0 ? 0 : milliseconds, callback);
+    },
+    _rootPrint($self, $parent, zone, line) {
+      A.printString(line);
+    },
+    _printToZone(line) {
+      $.Zone__current.print$1(line);
+    },
+    _rootFork($self, $parent, zone, specification, zoneValues) {
+      var valueMap, t1, handleUncaughtError;
+      $.printToZone = A.async___printToZone$closure();
+      if (specification == null)
+        specification = B._ZoneSpecification_48t;
+      if (zoneValues == null)
+        valueMap = zone.get$_async$_map();
+      else {
+        t1 = type$.nullable_Object;
+        valueMap = A.HashMap_HashMap$from(zoneValues, t1, t1);
+      }
+      t1 = new A._CustomZone(zone.get$_run(), zone.get$_runUnary(), zone.get$_runBinary(), zone.get$_registerCallback(), zone.get$_registerUnaryCallback(), zone.get$_registerBinaryCallback(), zone.get$_errorCallback(), zone.get$_scheduleMicrotask(), zone.get$_createTimer(), zone.get$_createPeriodicTimer(), zone.get$_print(), zone.get$_fork(), zone.get$_handleUncaughtError(), zone, valueMap);
+      handleUncaughtError = specification.handleUncaughtError;
+      if (handleUncaughtError != null)
+        t1._handleUncaughtError = new A._ZoneFunction(t1, handleUncaughtError);
+      return t1;
+    },
+    runZoned(body, zoneValues, $R) {
+      A.checkNotNullable(body, "body", $R._eval$1("0()"));
+      return A._runZoned(body, zoneValues, null, $R);
+    },
+    _runZoned(body, zoneValues, specification, $R) {
+      return $.Zone__current.fork$2$specification$zoneValues(specification, zoneValues).run$1$1(0, body, $R);
+    },
+    _AsyncRun__initializeScheduleImmediate_internalCallback: function _AsyncRun__initializeScheduleImmediate_internalCallback(t0) {
+      this._box_0 = t0;
+    },
+    _AsyncRun__initializeScheduleImmediate_closure: function _AsyncRun__initializeScheduleImmediate_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.div = t1;
+      this.span = t2;
+    },
+    _AsyncRun__scheduleImmediateJsOverride_internalCallback: function _AsyncRun__scheduleImmediateJsOverride_internalCallback(t0) {
+      this.callback = t0;
+    },
+    _AsyncRun__scheduleImmediateWithSetImmediate_internalCallback: function _AsyncRun__scheduleImmediateWithSetImmediate_internalCallback(t0) {
+      this.callback = t0;
+    },
+    _TimerImpl: function _TimerImpl(t0) {
+      this._once = t0;
+      this._handle = null;
+      this._tick = 0;
+    },
+    _TimerImpl_internalCallback: function _TimerImpl_internalCallback(t0, t1) {
+      this.$this = t0;
+      this.callback = t1;
+    },
+    _TimerImpl$periodic_closure: function _TimerImpl$periodic_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.milliseconds = t1;
+      _.start = t2;
+      _.callback = t3;
+    },
+    _AsyncAwaitCompleter: function _AsyncAwaitCompleter(t0, t1) {
+      this._future = t0;
+      this.isSync = false;
+      this.$ti = t1;
+    },
+    _awaitOnObject_closure: function _awaitOnObject_closure(t0) {
+      this.bodyFunction = t0;
+    },
+    _awaitOnObject_closure0: function _awaitOnObject_closure0(t0) {
+      this.bodyFunction = t0;
+    },
+    _wrapJsFunctionForAsync_closure: function _wrapJsFunctionForAsync_closure(t0) {
+      this.$protected = t0;
+    },
+    _SyncStarIterator: function _SyncStarIterator(t0) {
+      var _ = this;
+      _._body = t0;
+      _._suspendedBodies = _._nestedIterator = _._datum = _._async$_current = null;
+    },
+    _SyncStarIterable: function _SyncStarIterable(t0, t1) {
+      this._outerHelper = t0;
+      this.$ti = t1;
+    },
+    AsyncError: function AsyncError(t0, t1) {
+      this.error = t0;
+      this.stackTrace = t1;
+    },
+    Future_wait_handleError: function Future_wait_handleError(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.cleanUp = t1;
+      _.eagerError = t2;
+      _._future = t3;
+    },
+    Future_wait_closure: function Future_wait_closure(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.pos = t1;
+      _._future = t2;
+      _.T = t3;
+      _.cleanUp = t4;
+      _.eagerError = t5;
+    },
+    _Completer: function _Completer() {
+    },
+    _AsyncCompleter: function _AsyncCompleter(t0, t1) {
+      this.future = t0;
+      this.$ti = t1;
+    },
+    _SyncCompleter: function _SyncCompleter(t0, t1) {
+      this.future = t0;
+      this.$ti = t1;
+    },
+    _FutureListener: function _FutureListener(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._nextListener = null;
+      _.result = t0;
+      _.state = t1;
+      _.callback = t2;
+      _.errorCallback = t3;
+      _.$ti = t4;
+    },
+    _Future: function _Future(t0, t1) {
+      var _ = this;
+      _._state = 0;
+      _._zone = t0;
+      _._resultOrListeners = null;
+      _.$ti = t1;
+    },
+    _Future__addListener_closure: function _Future__addListener_closure(t0, t1) {
+      this.$this = t0;
+      this.listener = t1;
+    },
+    _Future__prependListeners_closure: function _Future__prependListeners_closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _Future__chainForeignFuture_closure: function _Future__chainForeignFuture_closure(t0) {
+      this.$this = t0;
+    },
+    _Future__chainForeignFuture_closure0: function _Future__chainForeignFuture_closure0(t0) {
+      this.$this = t0;
+    },
+    _Future__chainForeignFuture_closure1: function _Future__chainForeignFuture_closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.e = t1;
+      this.s = t2;
+    },
+    _Future__chainCoreFutureAsync_closure: function _Future__chainCoreFutureAsync_closure(t0, t1) {
+      this._box_0 = t0;
+      this.target = t1;
+    },
+    _Future__asyncCompleteWithValue_closure: function _Future__asyncCompleteWithValue_closure(t0, t1) {
+      this.$this = t0;
+      this.value = t1;
+    },
+    _Future__asyncCompleteError_closure: function _Future__asyncCompleteError_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.error = t1;
+      this.stackTrace = t2;
+    },
+    _Future__propagateToListeners_handleWhenCompleteCallback: function _Future__propagateToListeners_handleWhenCompleteCallback(t0, t1, t2) {
+      this._box_0 = t0;
+      this._box_1 = t1;
+      this.hasError = t2;
+    },
+    _Future__propagateToListeners_handleWhenCompleteCallback_closure: function _Future__propagateToListeners_handleWhenCompleteCallback_closure(t0) {
+      this.originalSource = t0;
+    },
+    _Future__propagateToListeners_handleValueCallback: function _Future__propagateToListeners_handleValueCallback(t0, t1) {
+      this._box_0 = t0;
+      this.sourceResult = t1;
+    },
+    _Future__propagateToListeners_handleError: function _Future__propagateToListeners_handleError(t0, t1) {
+      this._box_1 = t0;
+      this._box_0 = t1;
+    },
+    _AsyncCallbackEntry: function _AsyncCallbackEntry(t0) {
+      this.callback = t0;
+      this.next = null;
+    },
+    Stream: function Stream() {
+    },
+    Stream_Stream$fromFuture_closure: function Stream_Stream$fromFuture_closure(t0, t1) {
+      this.controller = t0;
+      this.T = t1;
+    },
+    Stream_Stream$fromFuture_closure0: function Stream_Stream$fromFuture_closure0(t0) {
+      this.controller = t0;
+    },
+    Stream_length_closure: function Stream_length_closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    Stream_length_closure0: function Stream_length_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.future = t1;
+    },
+    _StreamController: function _StreamController() {
+    },
+    _StreamController__subscribe_closure: function _StreamController__subscribe_closure(t0) {
+      this.$this = t0;
+    },
+    _StreamController__recordCancel_complete: function _StreamController__recordCancel_complete(t0) {
+      this.$this = t0;
+    },
+    _SyncStreamControllerDispatch: function _SyncStreamControllerDispatch() {
+    },
+    _AsyncStreamControllerDispatch: function _AsyncStreamControllerDispatch() {
+    },
+    _AsyncStreamController: function _AsyncStreamController(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._varData = null;
+      _._state = 0;
+      _._doneFuture = null;
+      _.onListen = t0;
+      _.onPause = t1;
+      _.onResume = t2;
+      _.onCancel = t3;
+      _.$ti = t4;
+    },
+    _SyncStreamController: function _SyncStreamController(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._varData = null;
+      _._state = 0;
+      _._doneFuture = null;
+      _.onListen = t0;
+      _.onPause = t1;
+      _.onResume = t2;
+      _.onCancel = t3;
+      _.$ti = t4;
+    },
+    _ControllerStream: function _ControllerStream(t0, t1) {
+      this._controller = t0;
+      this.$ti = t1;
+    },
+    _ControllerSubscription: function _ControllerSubscription(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._controller = t0;
+      _._onData = t1;
+      _._onError = t2;
+      _._onDone = t3;
+      _._zone = t4;
+      _._state = t5;
+      _._pending = _._cancelFuture = null;
+      _.$ti = t6;
+    },
+    _AddStreamState: function _AddStreamState() {
+    },
+    _AddStreamState_makeErrorHandler_closure: function _AddStreamState_makeErrorHandler_closure(t0) {
+      this.controller = t0;
+    },
+    _AddStreamState_cancel_closure: function _AddStreamState_cancel_closure(t0) {
+      this.$this = t0;
+    },
+    _StreamControllerAddStreamState: function _StreamControllerAddStreamState(t0, t1, t2) {
+      this._varData = t0;
+      this.addStreamFuture = t1;
+      this.addSubscription = t2;
+    },
+    _BufferingStreamSubscription: function _BufferingStreamSubscription() {
+    },
+    _BufferingStreamSubscription__sendError_sendError: function _BufferingStreamSubscription__sendError_sendError(t0, t1, t2) {
+      this.$this = t0;
+      this.error = t1;
+      this.stackTrace = t2;
+    },
+    _BufferingStreamSubscription__sendDone_sendDone: function _BufferingStreamSubscription__sendDone_sendDone(t0) {
+      this.$this = t0;
+    },
+    _StreamImpl: function _StreamImpl() {
+    },
+    _DelayedEvent: function _DelayedEvent() {
+    },
+    _DelayedData: function _DelayedData(t0) {
+      this.value = t0;
+      this.next = null;
+    },
+    _DelayedError: function _DelayedError(t0, t1) {
+      this.error = t0;
+      this.stackTrace = t1;
+      this.next = null;
+    },
+    _DelayedDone: function _DelayedDone() {
+    },
+    _PendingEvents: function _PendingEvents() {
+      this._state = 0;
+      this.lastPendingEvent = this.firstPendingEvent = null;
+    },
+    _PendingEvents_schedule_closure: function _PendingEvents_schedule_closure(t0, t1) {
+      this.$this = t0;
+      this.dispatch = t1;
+    },
+    _StreamIterator: function _StreamIterator(t0) {
+      this._subscription = null;
+      this._stateData = t0;
+      this._async$_hasValue = false;
+    },
+    _ForwardingStream: function _ForwardingStream() {
+    },
+    _ForwardingStreamSubscription: function _ForwardingStreamSubscription(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._stream = t0;
+      _._subscription = null;
+      _._onData = t1;
+      _._onError = t2;
+      _._onDone = t3;
+      _._zone = t4;
+      _._state = t5;
+      _._pending = _._cancelFuture = null;
+      _.$ti = t6;
+    },
+    _ExpandStream: function _ExpandStream(t0, t1, t2) {
+      this._expand = t0;
+      this._async$_source = t1;
+      this.$ti = t2;
+    },
+    _ZoneFunction: function _ZoneFunction(t0, t1) {
+      this.zone = t0;
+      this.$function = t1;
+    },
+    _ZoneSpecification: function _ZoneSpecification(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12) {
+      var _ = this;
+      _.handleUncaughtError = t0;
+      _.run = t1;
+      _.runUnary = t2;
+      _.runBinary = t3;
+      _.registerCallback = t4;
+      _.registerUnaryCallback = t5;
+      _.registerBinaryCallback = t6;
+      _.errorCallback = t7;
+      _.scheduleMicrotask = t8;
+      _.createTimer = t9;
+      _.createPeriodicTimer = t10;
+      _.print = t11;
+      _.fork = t12;
+    },
+    _ZoneDelegate: function _ZoneDelegate(t0) {
+      this._delegationTarget = t0;
+    },
+    _Zone: function _Zone() {
+    },
+    _CustomZone: function _CustomZone(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14) {
+      var _ = this;
+      _._run = t0;
+      _._runUnary = t1;
+      _._runBinary = t2;
+      _._registerCallback = t3;
+      _._registerUnaryCallback = t4;
+      _._registerBinaryCallback = t5;
+      _._errorCallback = t6;
+      _._scheduleMicrotask = t7;
+      _._createTimer = t8;
+      _._createPeriodicTimer = t9;
+      _._print = t10;
+      _._fork = t11;
+      _._handleUncaughtError = t12;
+      _._delegateCache = null;
+      _.parent = t13;
+      _._async$_map = t14;
+    },
+    _CustomZone_bindCallback_closure: function _CustomZone_bindCallback_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.registered = t1;
+      this.R = t2;
+    },
+    _CustomZone_bindUnaryCallback_closure: function _CustomZone_bindUnaryCallback_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.registered = t1;
+      _.T = t2;
+      _.R = t3;
+    },
+    _CustomZone_bindCallbackGuarded_closure: function _CustomZone_bindCallbackGuarded_closure(t0, t1) {
+      this.$this = t0;
+      this.registered = t1;
+    },
+    _rootHandleError_closure: function _rootHandleError_closure(t0, t1) {
+      this.error = t0;
+      this.stackTrace = t1;
+    },
+    _RootZone: function _RootZone() {
+    },
+    _RootZone_bindCallback_closure: function _RootZone_bindCallback_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.f = t1;
+      this.R = t2;
+    },
+    _RootZone_bindUnaryCallback_closure: function _RootZone_bindUnaryCallback_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.f = t1;
+      _.T = t2;
+      _.R = t3;
+    },
+    _RootZone_bindCallbackGuarded_closure: function _RootZone_bindCallbackGuarded_closure(t0, t1) {
+      this.$this = t0;
+      this.f = t1;
+    },
+    HashMap_HashMap($K, $V) {
+      return new A._HashMap($K._eval$1("@<0>")._bind$1($V)._eval$1("_HashMap<1,2>"));
+    },
+    _HashMap__getTableEntry(table, key) {
+      var entry = table[key];
+      return entry === table ? null : entry;
+    },
+    _HashMap__setTableEntry(table, key, value) {
+      if (value == null)
+        table[key] = table;
+      else
+        table[key] = value;
+    },
+    _HashMap__newHashTable() {
+      var table = Object.create(null);
+      A._HashMap__setTableEntry(table, "<non-identifier-key>", table);
+      delete table["<non-identifier-key>"];
+      return table;
+    },
+    LinkedHashMap_LinkedHashMap(equals, hashCode, isValidKey, $K, $V) {
+      if (isValidKey == null)
+        if (hashCode == null) {
+          if (equals == null)
+            return new A.JsLinkedHashMap($K._eval$1("@<0>")._bind$1($V)._eval$1("JsLinkedHashMap<1,2>"));
+          hashCode = A.collection___defaultHashCode$closure();
+        } else {
+          if (A.core__identityHashCode$closure() === hashCode && A.core__identical$closure() === equals)
+            return new A.JsIdentityLinkedHashMap($K._eval$1("@<0>")._bind$1($V)._eval$1("JsIdentityLinkedHashMap<1,2>"));
+          if (equals == null)
+            equals = A.collection___defaultEquals$closure();
+        }
+      else {
+        if (hashCode == null)
+          hashCode = A.collection___defaultHashCode$closure();
+        if (equals == null)
+          equals = A.collection___defaultEquals$closure();
+      }
+      return A._LinkedCustomHashMap$(equals, hashCode, isValidKey, $K, $V);
+    },
+    LinkedHashMap_LinkedHashMap$_literal(keyValuePairs, $K, $V) {
+      return A.fillLiteralMap(keyValuePairs, new A.JsLinkedHashMap($K._eval$1("@<0>")._bind$1($V)._eval$1("JsLinkedHashMap<1,2>")));
+    },
+    LinkedHashMap_LinkedHashMap$_empty($K, $V) {
+      return new A.JsLinkedHashMap($K._eval$1("@<0>")._bind$1($V)._eval$1("JsLinkedHashMap<1,2>"));
+    },
+    _LinkedCustomHashMap$(_equals, _hashCode, validKey, $K, $V) {
+      var t1 = validKey != null ? validKey : new A._LinkedCustomHashMap_closure($K);
+      return new A._LinkedCustomHashMap(_equals, _hashCode, t1, $K._eval$1("@<0>")._bind$1($V)._eval$1("_LinkedCustomHashMap<1,2>"));
+    },
+    LinkedHashSet_LinkedHashSet($E) {
+      return new A._LinkedHashSet($E._eval$1("_LinkedHashSet<0>"));
+    },
+    LinkedHashSet_LinkedHashSet$_empty($E) {
+      return new A._LinkedHashSet($E._eval$1("_LinkedHashSet<0>"));
+    },
+    LinkedHashSet_LinkedHashSet$_literal(values, $E) {
+      return A.fillLiteralSet(values, new A._LinkedHashSet($E._eval$1("_LinkedHashSet<0>")));
+    },
+    _LinkedHashSet__newHashTable() {
+      var table = Object.create(null);
+      table["<non-identifier-key>"] = table;
+      delete table["<non-identifier-key>"];
+      return table;
+    },
+    _LinkedHashSetIterator$(_set, _modifications, $E) {
+      var t1 = new A._LinkedHashSetIterator(_set, _modifications, $E._eval$1("_LinkedHashSetIterator<0>"));
+      t1._cell = _set._first;
+      return t1;
+    },
+    UnmodifiableListView$(source, $E) {
+      return new A.UnmodifiableListView(source, $E._eval$1("UnmodifiableListView<0>"));
+    },
+    _defaultEquals(a, b) {
+      return J.$eq$(a, b);
+    },
+    _defaultHashCode(a) {
+      return J.get$hashCode$(a);
+    },
+    HashMap_HashMap$from(other, $K, $V) {
+      var result = A.HashMap_HashMap($K, $V);
+      other.forEach$1(0, new A.HashMap_HashMap$from_closure(result, $K, $V));
+      return result;
+    },
+    LinkedHashMap_LinkedHashMap$from(other, $K, $V) {
+      var result = A.LinkedHashMap_LinkedHashMap(null, null, null, $K, $V);
+      other.forEach$1(0, new A.LinkedHashMap_LinkedHashMap$from_closure(result, $K, $V));
+      return result;
+    },
+    LinkedHashMap_LinkedHashMap$of(other, $K, $V) {
+      var t1 = A.LinkedHashMap_LinkedHashMap(null, null, null, $K, $V);
+      t1.addAll$1(0, other);
+      return t1;
+    },
+    LinkedHashSet_LinkedHashSet$from(elements, $E) {
+      var t1, _i,
+        result = A.LinkedHashSet_LinkedHashSet($E);
+      for (t1 = elements.length, _i = 0; _i < elements.length; elements.length === t1 || (0, A.throwConcurrentModificationError)(elements), ++_i)
+        result.add$1(0, $E._as(elements[_i]));
+      return result;
+    },
+    LinkedHashSet_LinkedHashSet$of(elements, $E) {
+      var t1 = A.LinkedHashSet_LinkedHashSet($E);
+      t1.addAll$1(0, elements);
+      return t1;
+    },
+    ListBase__compareAny(a, b) {
+      var t1 = type$.Comparable_dynamic;
+      return J.compareTo$1$ns(t1._as(a), t1._as(b));
+    },
+    MapBase_mapToString(m) {
+      var result, t1 = {};
+      if (A.isToStringVisiting(m))
+        return "{...}";
+      result = new A.StringBuffer("");
+      try {
+        $.toStringVisiting.push(m);
+        result._contents += "{";
+        t1.first = true;
+        m.forEach$1(0, new A.MapBase_mapToString_closure(t1, result));
+        result._contents += "}";
+      } finally {
+        $.toStringVisiting.pop();
+      }
+      t1 = result._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    MapBase__fillMapWithIterables(map, keys, values) {
+      var keyIterator = keys.get$iterator(keys),
+        valueIterator = values.get$iterator(values),
+        hasNextKey = keyIterator.moveNext$0(),
+        hasNextValue = valueIterator.moveNext$0();
+      while (true) {
+        if (!(hasNextKey && hasNextValue))
+          break;
+        map.$indexSet(0, keyIterator.get$current(keyIterator), valueIterator.get$current(valueIterator));
+        hasNextKey = keyIterator.moveNext$0();
+        hasNextValue = valueIterator.moveNext$0();
+      }
+      if (hasNextKey || hasNextValue)
+        throw A.wrapException(A.ArgumentError$("Iterables do not have same length.", null));
+    },
+    ListQueue$($E) {
+      return new A.ListQueue(A.List_List$filled(A.ListQueue__calculateCapacity(null), null, false, $E._eval$1("0?")), $E._eval$1("ListQueue<0>"));
+    },
+    ListQueue__calculateCapacity(initialCapacity) {
+      return 8;
+    },
+    ListQueue__nextPowerOf2(number) {
+      var nextNumber;
+      number = (number << 1 >>> 0) - 1;
+      for (; true; number = nextNumber) {
+        nextNumber = (number & number - 1) >>> 0;
+        if (nextNumber === 0)
+          return number;
+      }
+    },
+    _ListQueueIterator$(queue, $E) {
+      return new A._ListQueueIterator(queue, queue._tail, queue._modificationCount, queue._head, $E._eval$1("_ListQueueIterator<0>"));
+    },
+    _UnmodifiableSetMixin__throwUnmodifiable() {
+      throw A.wrapException(A.UnsupportedError$("Cannot change an unmodifiable set"));
+    },
+    _HashMap: function _HashMap(t0) {
+      var _ = this;
+      _._collection$_length = 0;
+      _._collection$_keys = _._collection$_rest = _._nums = _._strings = null;
+      _.$ti = t0;
+    },
+    _HashMap_values_closure: function _HashMap_values_closure(t0) {
+      this.$this = t0;
+    },
+    _HashMap_addAll_closure: function _HashMap_addAll_closure(t0) {
+      this.$this = t0;
+    },
+    _IdentityHashMap: function _IdentityHashMap(t0) {
+      var _ = this;
+      _._collection$_length = 0;
+      _._collection$_keys = _._collection$_rest = _._nums = _._strings = null;
+      _.$ti = t0;
+    },
+    _HashMapKeyIterable: function _HashMapKeyIterable(t0, t1) {
+      this._map = t0;
+      this.$ti = t1;
+    },
+    _HashMapKeyIterator: function _HashMapKeyIterator(t0, t1, t2) {
+      var _ = this;
+      _._map = t0;
+      _._collection$_keys = t1;
+      _._offset = 0;
+      _._collection$_current = null;
+      _.$ti = t2;
+    },
+    _LinkedCustomHashMap: function _LinkedCustomHashMap(t0, t1, t2, t3) {
+      var _ = this;
+      _._equals = t0;
+      _._hashCode = t1;
+      _._validKey = t2;
+      _.__js_helper$_length = 0;
+      _.__js_helper$_last = _.__js_helper$_first = _.__js_helper$_rest = _.__js_helper$_nums = _.__js_helper$_strings = null;
+      _.__js_helper$_modifications = 0;
+      _.$ti = t3;
+    },
+    _LinkedCustomHashMap_closure: function _LinkedCustomHashMap_closure(t0) {
+      this.K = t0;
+    },
+    _LinkedHashSet: function _LinkedHashSet(t0) {
+      var _ = this;
+      _._collection$_length = 0;
+      _._last = _._first = _._collection$_rest = _._nums = _._strings = null;
+      _._modifications = 0;
+      _.$ti = t0;
+    },
+    _LinkedIdentityHashSet: function _LinkedIdentityHashSet(t0) {
+      var _ = this;
+      _._collection$_length = 0;
+      _._last = _._first = _._collection$_rest = _._nums = _._strings = null;
+      _._modifications = 0;
+      _.$ti = t0;
+    },
+    _LinkedHashSetCell: function _LinkedHashSetCell(t0) {
+      this._element = t0;
+      this._previous = this._next = null;
+    },
+    _LinkedHashSetIterator: function _LinkedHashSetIterator(t0, t1, t2) {
+      var _ = this;
+      _._set = t0;
+      _._modifications = t1;
+      _._collection$_current = _._cell = null;
+      _.$ti = t2;
+    },
+    UnmodifiableListView: function UnmodifiableListView(t0, t1) {
+      this._collection$_source = t0;
+      this.$ti = t1;
+    },
+    HashMap_HashMap$from_closure: function HashMap_HashMap$from_closure(t0, t1, t2) {
+      this.result = t0;
+      this.K = t1;
+      this.V = t2;
+    },
+    LinkedHashMap_LinkedHashMap$from_closure: function LinkedHashMap_LinkedHashMap$from_closure(t0, t1, t2) {
+      this.result = t0;
+      this.K = t1;
+      this.V = t2;
+    },
+    ListBase: function ListBase() {
+    },
+    MapBase: function MapBase() {
+    },
+    MapBase_addAll_closure: function MapBase_addAll_closure(t0) {
+      this.$this = t0;
+    },
+    MapBase_entries_closure: function MapBase_entries_closure(t0) {
+      this.$this = t0;
+    },
+    MapBase_mapToString_closure: function MapBase_mapToString_closure(t0, t1) {
+      this._box_0 = t0;
+      this.result = t1;
+    },
+    UnmodifiableMapBase: function UnmodifiableMapBase() {
+    },
+    _MapBaseValueIterable: function _MapBaseValueIterable(t0, t1) {
+      this._map = t0;
+      this.$ti = t1;
+    },
+    _MapBaseValueIterator: function _MapBaseValueIterator(t0, t1, t2) {
+      var _ = this;
+      _._collection$_keys = t0;
+      _._map = t1;
+      _._collection$_current = null;
+      _.$ti = t2;
+    },
+    _UnmodifiableMapMixin: function _UnmodifiableMapMixin() {
+    },
+    MapView: function MapView() {
+    },
+    UnmodifiableMapView: function UnmodifiableMapView(t0, t1) {
+      this._map = t0;
+      this.$ti = t1;
+    },
+    ListQueue: function ListQueue(t0, t1) {
+      var _ = this;
+      _._table = t0;
+      _._modificationCount = _._tail = _._head = 0;
+      _.$ti = t1;
+    },
+    _ListQueueIterator: function _ListQueueIterator(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._queue = t0;
+      _._collection$_end = t1;
+      _._modificationCount = t2;
+      _._collection$_position = t3;
+      _._collection$_current = null;
+      _.$ti = t4;
+    },
+    SetBase: function SetBase() {
+    },
+    _SetBase: function _SetBase() {
+    },
+    _UnmodifiableSetMixin: function _UnmodifiableSetMixin() {
+    },
+    UnmodifiableSetView: function UnmodifiableSetView(t0, t1) {
+      this._collection$_source = t0;
+      this.$ti = t1;
+    },
+    _UnmodifiableMapView_MapView__UnmodifiableMapMixin: function _UnmodifiableMapView_MapView__UnmodifiableMapMixin() {
+    },
+    _UnmodifiableSetView_SetBase__UnmodifiableSetMixin: function _UnmodifiableSetView_SetBase__UnmodifiableSetMixin() {
+    },
+    _parseJson(source, reviver) {
+      var e, exception, t1, parsed = null;
+      try {
+        parsed = JSON.parse(source);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        t1 = A.FormatException$(String(e), null, null);
+        throw A.wrapException(t1);
+      }
+      t1 = A._convertJsonToDartLazy(parsed);
+      return t1;
+    },
+    _convertJsonToDartLazy(object) {
+      var i;
+      if (object == null)
+        return null;
+      if (typeof object != "object")
+        return object;
+      if (!Array.isArray(object))
+        return new A._JsonMap(object, Object.create(null));
+      for (i = 0; i < object.length; ++i)
+        object[i] = A._convertJsonToDartLazy(object[i]);
+      return object;
+    },
+    _Utf8Decoder__makeNativeUint8List(codeUnits, start, end) {
+      var bytes, t1, i, b,
+        $length = end - start;
+      if ($length <= 4096)
+        bytes = $.$get$_Utf8Decoder__reusableBuffer();
+      else
+        bytes = new Uint8Array($length);
+      for (t1 = J.getInterceptor$asx(codeUnits), i = 0; i < $length; ++i) {
+        b = t1.$index(codeUnits, start + i);
+        if ((b & 255) !== b)
+          b = 255;
+        bytes[i] = b;
+      }
+      return bytes;
+    },
+    _Utf8Decoder__convertInterceptedUint8List(allowMalformed, codeUnits, start, end) {
+      var decoder = allowMalformed ? $.$get$_Utf8Decoder__decoderNonfatal() : $.$get$_Utf8Decoder__decoder();
+      if (decoder == null)
+        return null;
+      if (0 === start && end === codeUnits.length)
+        return A._Utf8Decoder__useTextDecoder(decoder, codeUnits);
+      return A._Utf8Decoder__useTextDecoder(decoder, codeUnits.subarray(start, end));
+    },
+    _Utf8Decoder__useTextDecoder(decoder, codeUnits) {
+      var t1, exception;
+      try {
+        t1 = decoder.decode(codeUnits);
+        return t1;
+      } catch (exception) {
+      }
+      return null;
+    },
+    Base64Codec__checkPadding(source, sourceIndex, sourceEnd, firstPadding, paddingCount, $length) {
+      if (B.JSInt_methods.$mod($length, 4) !== 0)
+        throw A.wrapException(A.FormatException$("Invalid base64 padding, padded length must be multiple of four, is " + $length, source, sourceEnd));
+      if (firstPadding + paddingCount !== $length)
+        throw A.wrapException(A.FormatException$("Invalid base64 padding, '=' not at the end", source, sourceIndex));
+      if (paddingCount > 2)
+        throw A.wrapException(A.FormatException$("Invalid base64 padding, more than two '=' characters", source, sourceIndex));
+    },
+    _Base64Encoder_encodeChunk(alphabet, bytes, start, end, isLast, output, outputIndex, state) {
+      var t1, i, byteOr, byte, outputIndex0, outputIndex1,
+        bits = state >>> 2,
+        expectedChars = 3 - (state & 3);
+      for (t1 = J.getInterceptor$asx(bytes), i = start, byteOr = 0; i < end; ++i) {
+        byte = t1.$index(bytes, i);
+        byteOr = (byteOr | byte) >>> 0;
+        bits = (bits << 8 | byte) & 16777215;
+        --expectedChars;
+        if (expectedChars === 0) {
+          outputIndex0 = outputIndex + 1;
+          output[outputIndex] = alphabet.charCodeAt(bits >>> 18 & 63);
+          outputIndex = outputIndex0 + 1;
+          output[outputIndex0] = alphabet.charCodeAt(bits >>> 12 & 63);
+          outputIndex0 = outputIndex + 1;
+          output[outputIndex] = alphabet.charCodeAt(bits >>> 6 & 63);
+          outputIndex = outputIndex0 + 1;
+          output[outputIndex0] = alphabet.charCodeAt(bits & 63);
+          bits = 0;
+          expectedChars = 3;
+        }
+      }
+      if (byteOr >= 0 && byteOr <= 255) {
+        if (isLast && expectedChars < 3) {
+          outputIndex0 = outputIndex + 1;
+          outputIndex1 = outputIndex0 + 1;
+          if (3 - expectedChars === 1) {
+            output[outputIndex] = alphabet.charCodeAt(bits >>> 2 & 63);
+            output[outputIndex0] = alphabet.charCodeAt(bits << 4 & 63);
+            output[outputIndex1] = 61;
+            output[outputIndex1 + 1] = 61;
+          } else {
+            output[outputIndex] = alphabet.charCodeAt(bits >>> 10 & 63);
+            output[outputIndex0] = alphabet.charCodeAt(bits >>> 4 & 63);
+            output[outputIndex1] = alphabet.charCodeAt(bits << 2 & 63);
+            output[outputIndex1 + 1] = 61;
+          }
+          return 0;
+        }
+        return (bits << 2 | 3 - expectedChars) >>> 0;
+      }
+      for (i = start; i < end;) {
+        byte = t1.$index(bytes, i);
+        if (byte < 0 || byte > 255)
+          break;
+        ++i;
+      }
+      throw A.wrapException(A.ArgumentError$value(bytes, "Not a byte value at index " + i + ": 0x" + J.toRadixString$1$n(t1.$index(bytes, i), 16), null));
+    },
+    JsonUnsupportedObjectError$(unsupportedObject, cause, partialResult) {
+      return new A.JsonUnsupportedObjectError(unsupportedObject, cause);
+    },
+    _defaultToEncodable(object) {
+      return object.toJson$0();
+    },
+    _JsonStringStringifier$(_sink, _toEncodable) {
+      return new A._JsonStringStringifier(_sink, [], A.convert___defaultToEncodable$closure());
+    },
+    _JsonStringStringifier_stringify(object, toEncodable, indent) {
+      var t1,
+        output = new A.StringBuffer(""),
+        stringifier = A._JsonStringStringifier$(output, toEncodable);
+      stringifier.writeObject$1(object);
+      t1 = output._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _Utf8Decoder_errorDescription(state) {
+      switch (state) {
+        case 65:
+          return "Missing extension byte";
+        case 67:
+          return "Unexpected extension byte";
+        case 69:
+          return "Invalid UTF-8 byte";
+        case 71:
+          return "Overlong encoding";
+        case 73:
+          return "Out of unicode range";
+        case 75:
+          return "Encoded surrogate";
+        case 77:
+          return "Unfinished UTF-8 octet sequence";
+        default:
+          return "";
+      }
+    },
+    _JsonMap: function _JsonMap(t0, t1) {
+      this._original = t0;
+      this._processed = t1;
+      this._data = null;
+    },
+    _JsonMap_values_closure: function _JsonMap_values_closure(t0) {
+      this.$this = t0;
+    },
+    _JsonMap_addAll_closure: function _JsonMap_addAll_closure(t0) {
+      this.$this = t0;
+    },
+    _JsonMapKeyIterable: function _JsonMapKeyIterable(t0) {
+      this._convert$_parent = t0;
+    },
+    _Utf8Decoder__decoder_closure: function _Utf8Decoder__decoder_closure() {
+    },
+    _Utf8Decoder__decoderNonfatal_closure: function _Utf8Decoder__decoderNonfatal_closure() {
+    },
+    AsciiCodec: function AsciiCodec() {
+    },
+    _UnicodeSubsetEncoder: function _UnicodeSubsetEncoder() {
+    },
+    AsciiEncoder: function AsciiEncoder(t0) {
+      this._subsetMask = t0;
+    },
+    Base64Codec: function Base64Codec() {
+    },
+    Base64Encoder: function Base64Encoder() {
+    },
+    _Base64Encoder: function _Base64Encoder(t0) {
+      this._convert$_state = 0;
+      this._alphabet = t0;
+    },
+    _Base64EncoderSink: function _Base64EncoderSink() {
+    },
+    _Utf8Base64EncoderSink: function _Utf8Base64EncoderSink(t0, t1) {
+      this._sink = t0;
+      this._encoder = t1;
+    },
+    ByteConversionSink: function ByteConversionSink() {
+    },
+    Codec: function Codec() {
+    },
+    Converter: function Converter() {
+    },
+    Encoding: function Encoding() {
+    },
+    JsonUnsupportedObjectError: function JsonUnsupportedObjectError(t0, t1) {
+      this.unsupportedObject = t0;
+      this.cause = t1;
+    },
+    JsonCyclicError: function JsonCyclicError(t0, t1) {
+      this.unsupportedObject = t0;
+      this.cause = t1;
+    },
+    JsonCodec: function JsonCodec() {
+    },
+    JsonEncoder: function JsonEncoder(t0) {
+      this._toEncodable = t0;
+    },
+    JsonDecoder: function JsonDecoder(t0) {
+      this._reviver = t0;
+    },
+    _JsonStringifier: function _JsonStringifier() {
+    },
+    _JsonStringifier_writeMap_closure: function _JsonStringifier_writeMap_closure(t0, t1) {
+      this._box_0 = t0;
+      this.keyValueList = t1;
+    },
+    _JsonStringStringifier: function _JsonStringStringifier(t0, t1, t2) {
+      this._sink = t0;
+      this._seen = t1;
+      this._toEncodable = t2;
+    },
+    StringConversionSink: function StringConversionSink() {
+    },
+    _StringSinkConversionSink: function _StringSinkConversionSink(t0) {
+      this._stringSink = t0;
+    },
+    _StringCallbackSink: function _StringCallbackSink(t0, t1) {
+      this._convert$_callback = t0;
+      this._stringSink = t1;
+    },
+    _Utf8StringSinkAdapter: function _Utf8StringSinkAdapter(t0, t1, t2) {
+      this._decoder = t0;
+      this._sink = t1;
+      this._stringSink = t2;
+    },
+    Utf8Codec: function Utf8Codec() {
+    },
+    Utf8Encoder: function Utf8Encoder() {
+    },
+    _Utf8Encoder: function _Utf8Encoder(t0) {
+      this._bufferIndex = 0;
+      this._buffer = t0;
+    },
+    Utf8Decoder: function Utf8Decoder(t0) {
+      this._allowMalformed = t0;
+    },
+    _Utf8Decoder: function _Utf8Decoder(t0) {
+      this.allowMalformed = t0;
+      this._convert$_state = 16;
+      this._charOrIndex = 0;
+    },
+    identityHashCode(object) {
+      return A.objectHashCode(object);
+    },
+    Function_apply($function, positionalArguments) {
+      return A.Primitives_applyFunction($function, positionalArguments, null);
+    },
+    Expando$() {
+      return new A.Expando(new WeakMap());
+    },
+    Expando__checkType(object) {
+      if (A._isBool(object) || typeof object == "number" || typeof object == "string" || object instanceof A._Record)
+        A.Expando__badExpandoKey(object);
+    },
+    Expando__badExpandoKey(object) {
+      throw A.wrapException(A.ArgumentError$value(object, "object", "Expandos are not allowed on strings, numbers, bools, records or null"));
+    },
+    int_parse(source, radix) {
+      var value = A.Primitives_parseInt(source, radix);
+      if (value != null)
+        return value;
+      throw A.wrapException(A.FormatException$(source, null, null));
+    },
+    double_parse(source) {
+      var value = A.Primitives_parseDouble(source);
+      if (value != null)
+        return value;
+      throw A.wrapException(A.FormatException$("Invalid double", source, null));
+    },
+    Error__throw(error, stackTrace) {
+      error = A.wrapException(error);
+      error.stack = stackTrace.toString$0(0);
+      throw error;
+      throw A.wrapException("unreachable");
+    },
+    List_List$filled($length, fill, growable, $E) {
+      var i,
+        result = growable ? J.JSArray_JSArray$growable($length, $E) : J.JSArray_JSArray$fixed($length, $E);
+      if ($length !== 0 && fill != null)
+        for (i = 0; i < result.length; ++i)
+          result[i] = fill;
+      return result;
+    },
+    List_List$from(elements, growable, $E) {
+      var t1,
+        list = A._setArrayType([], $E._eval$1("JSArray<0>"));
+      for (t1 = J.get$iterator$ax(elements); t1.moveNext$0();)
+        list.push(t1.get$current(t1));
+      if (growable)
+        return list;
+      return J.JSArray_markFixedList(list);
+    },
+    List_List$of(elements, growable, $E) {
+      var t1;
+      if (growable)
+        return A.List_List$_of(elements, $E);
+      t1 = J.JSArray_markFixedList(A.List_List$_of(elements, $E));
+      return t1;
+    },
+    List_List$_of(elements, $E) {
+      var list, t1;
+      if (Array.isArray(elements))
+        return A._setArrayType(elements.slice(0), $E._eval$1("JSArray<0>"));
+      list = A._setArrayType([], $E._eval$1("JSArray<0>"));
+      for (t1 = J.get$iterator$ax(elements); t1.moveNext$0();)
+        list.push(t1.get$current(t1));
+      return list;
+    },
+    List_List$unmodifiable(elements, $E) {
+      return J.JSArray_markUnmodifiableList(A.List_List$from(elements, false, $E));
+    },
+    String_String$fromCharCodes(charCodes, start, end) {
+      var t1, t2, maxLength, array, len;
+      A.RangeError_checkNotNegative(start, "start");
+      t1 = end == null;
+      t2 = !t1;
+      if (t2) {
+        maxLength = end - start;
+        if (maxLength < 0)
+          throw A.wrapException(A.RangeError$range(end, start, null, "end", null));
+        if (maxLength === 0)
+          return "";
+      }
+      if (Array.isArray(charCodes)) {
+        array = charCodes;
+        len = array.length;
+        if (t1)
+          end = len;
+        return A.Primitives_stringFromCharCodes(start > 0 || end < len ? array.slice(start, end) : array);
+      }
+      if (type$.NativeUint8List._is(charCodes))
+        return A.String__stringFromUint8List(charCodes, start, end);
+      if (t2)
+        charCodes = J.take$1$ax(charCodes, end);
+      if (start > 0)
+        charCodes = J.skip$1$ax(charCodes, start);
+      return A.Primitives_stringFromCharCodes(A.List_List$of(charCodes, true, type$.int));
+    },
+    String_String$fromCharCode(charCode) {
+      return A.Primitives_stringFromCharCode(charCode);
+    },
+    String__stringFromUint8List(charCodes, start, endOrNull) {
+      var len = charCodes.length;
+      if (start >= len)
+        return "";
+      return A.Primitives_stringFromNativeUint8List(charCodes, start, endOrNull == null || endOrNull > len ? len : endOrNull);
+    },
+    RegExp_RegExp(source, multiLine) {
+      return new A.JSSyntaxRegExp(source, A.JSSyntaxRegExp_makeNative(source, multiLine, true, false, false, false));
+    },
+    identical(a, b) {
+      return a == null ? b == null : a === b;
+    },
+    StringBuffer__writeAll(string, objects, separator) {
+      var iterator = J.get$iterator$ax(objects);
+      if (!iterator.moveNext$0())
+        return string;
+      if (separator.length === 0) {
+        do
+          string += A.S(iterator.get$current(iterator));
+        while (iterator.moveNext$0());
+      } else {
+        string += A.S(iterator.get$current(iterator));
+        for (; iterator.moveNext$0();)
+          string = string + separator + A.S(iterator.get$current(iterator));
+      }
+      return string;
+    },
+    NoSuchMethodError_NoSuchMethodError$withInvocation(receiver, invocation) {
+      return new A.NoSuchMethodError(receiver, invocation.get$memberName(), invocation.get$positionalArguments(), invocation.get$namedArguments());
+    },
+    Uri_base() {
+      var cachedUri, uri,
+        current = A.Primitives_currentUri();
+      if (current == null)
+        throw A.wrapException(A.UnsupportedError$("'Uri.base' is not supported"));
+      cachedUri = $.Uri__cachedBaseUri;
+      if (cachedUri != null && current === $.Uri__cachedBaseString)
+        return cachedUri;
+      uri = A.Uri_parse(current);
+      $.Uri__cachedBaseUri = uri;
+      $.Uri__cachedBaseString = current;
+      return uri;
+    },
+    _Uri__uriEncode(canonicalTable, text, encoding, spaceToPlus) {
+      var t1, bytes, i, t2, byte,
+        _s16_ = "0123456789ABCDEF";
+      if (encoding === B.C_Utf8Codec) {
+        t1 = $.$get$_Uri__needsNoEncoding();
+        t1 = t1._nativeRegExp.test(text);
+      } else
+        t1 = false;
+      if (t1)
+        return text;
+      bytes = B.C_Utf8Encoder.convert$1(text);
+      for (t1 = bytes.length, i = 0, t2 = ""; i < t1; ++i) {
+        byte = bytes[i];
+        if (byte < 128 && (canonicalTable[byte >>> 4] & 1 << (byte & 15)) !== 0)
+          t2 += A.Primitives_stringFromCharCode(byte);
+        else
+          t2 = spaceToPlus && byte === 32 ? t2 + "+" : t2 + "%" + _s16_[byte >>> 4 & 15] + _s16_[byte & 15];
+      }
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    },
+    StackTrace_current() {
+      return A.getTraceFromException(new Error());
+    },
+    DateTime__fourDigits(n) {
+      var absN = Math.abs(n),
+        sign = n < 0 ? "-" : "";
+      if (absN >= 1000)
+        return "" + n;
+      if (absN >= 100)
+        return sign + "0" + absN;
+      if (absN >= 10)
+        return sign + "00" + absN;
+      return sign + "000" + absN;
+    },
+    DateTime__threeDigits(n) {
+      if (n >= 100)
+        return "" + n;
+      if (n >= 10)
+        return "0" + n;
+      return "00" + n;
+    },
+    DateTime__twoDigits(n) {
+      if (n >= 10)
+        return "" + n;
+      return "0" + n;
+    },
+    Duration$(milliseconds) {
+      return new A.Duration(1000 * milliseconds);
+    },
+    Error_safeToString(object) {
+      if (typeof object == "number" || A._isBool(object) || object == null)
+        return J.toString$0$(object);
+      if (typeof object == "string")
+        return JSON.stringify(object);
+      return A.Primitives_safeToString(object);
+    },
+    Error_throwWithStackTrace(error, stackTrace) {
+      A.checkNotNullable(error, "error", type$.Object);
+      A.checkNotNullable(stackTrace, "stackTrace", type$.StackTrace);
+      A.Error__throw(error, stackTrace);
+    },
+    AssertionError$(message) {
+      return new A.AssertionError(message);
+    },
+    ArgumentError$(message, $name) {
+      return new A.ArgumentError(false, null, $name, message);
+    },
+    ArgumentError$value(value, $name, message) {
+      return new A.ArgumentError(true, value, $name, message);
+    },
+    ArgumentError_checkNotNull(argument, $name) {
+      return argument;
+    },
+    RangeError$(message) {
+      var _null = null;
+      return new A.RangeError(_null, _null, false, _null, _null, message);
+    },
+    RangeError$value(value, $name, message) {
+      return new A.RangeError(null, null, true, value, $name, message == null ? "Value not in range" : message);
+    },
+    RangeError$range(invalidValue, minValue, maxValue, $name, message) {
+      return new A.RangeError(minValue, maxValue, true, invalidValue, $name, message == null ? "Invalid value" : message);
+    },
+    RangeError_checkValueInInterval(value, minValue, maxValue, $name) {
+      if (value < minValue || value > maxValue)
+        throw A.wrapException(A.RangeError$range(value, minValue, maxValue, $name, null));
+      return value;
+    },
+    RangeError_checkValidRange(start, end, $length) {
+      if (0 > start || start > $length)
+        throw A.wrapException(A.RangeError$range(start, 0, $length, "start", null));
+      if (end != null) {
+        if (start > end || end > $length)
+          throw A.wrapException(A.RangeError$range(end, start, $length, "end", null));
+        return end;
+      }
+      return $length;
+    },
+    RangeError_checkNotNegative(value, $name) {
+      if (value < 0)
+        throw A.wrapException(A.RangeError$range(value, 0, null, $name, null));
+      return value;
+    },
+    IndexError$withLength(invalidValue, $length, indexable, message, $name) {
+      return new A.IndexError($length, true, invalidValue, $name, "Index out of range");
+    },
+    IndexError_check(index, $length, indexable, message, $name) {
+      if (0 > index || index >= $length)
+        throw A.wrapException(A.IndexError$withLength(index, $length, indexable, message, $name == null ? "index" : $name));
+      return index;
+    },
+    UnsupportedError$(message) {
+      return new A.UnsupportedError(message);
+    },
+    UnimplementedError$(message) {
+      return new A.UnimplementedError(message);
+    },
+    StateError$(message) {
+      return new A.StateError(message);
+    },
+    ConcurrentModificationError$(modifiedObject) {
+      return new A.ConcurrentModificationError(modifiedObject);
+    },
+    FormatException$(message, source, offset) {
+      return new A.FormatException(message, source, offset);
+    },
+    Iterable_Iterable$generate(count, generator, $E) {
+      if (count <= 0)
+        return new A.EmptyIterable($E._eval$1("EmptyIterable<0>"));
+      return new A._GeneratorIterable(count, generator, $E._eval$1("_GeneratorIterable<0>"));
+    },
+    Iterable_iterableToShortString(iterable, leftDelimiter, rightDelimiter) {
+      var parts, t1;
+      if (A.isToStringVisiting(iterable)) {
+        if (leftDelimiter === "(" && rightDelimiter === ")")
+          return "(...)";
+        return leftDelimiter + "..." + rightDelimiter;
+      }
+      parts = A._setArrayType([], type$.JSArray_String);
+      $.toStringVisiting.push(iterable);
+      try {
+        A._iterablePartsToStrings(iterable, parts);
+      } finally {
+        $.toStringVisiting.pop();
+      }
+      t1 = A.StringBuffer__writeAll(leftDelimiter, parts, ", ") + rightDelimiter;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    Iterable_iterableToFullString(iterable, leftDelimiter, rightDelimiter) {
+      var buffer, t1;
+      if (A.isToStringVisiting(iterable))
+        return leftDelimiter + "..." + rightDelimiter;
+      buffer = new A.StringBuffer(leftDelimiter);
+      $.toStringVisiting.push(iterable);
+      try {
+        t1 = buffer;
+        t1._contents = A.StringBuffer__writeAll(t1._contents, iterable, ", ");
+      } finally {
+        $.toStringVisiting.pop();
+      }
+      buffer._contents += rightDelimiter;
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _iterablePartsToStrings(iterable, parts) {
+      var next, ultimateString, penultimateString, penultimate, ultimate, ultimate0, elision,
+        it = iterable.get$iterator(iterable),
+        $length = 0, count = 0;
+      while (true) {
+        if (!($length < 80 || count < 3))
+          break;
+        if (!it.moveNext$0())
+          return;
+        next = A.S(it.get$current(it));
+        parts.push(next);
+        $length += next.length + 2;
+        ++count;
+      }
+      if (!it.moveNext$0()) {
+        if (count <= 5)
+          return;
+        ultimateString = parts.pop();
+        penultimateString = parts.pop();
+      } else {
+        penultimate = it.get$current(it);
+        ++count;
+        if (!it.moveNext$0()) {
+          if (count <= 4) {
+            parts.push(A.S(penultimate));
+            return;
+          }
+          ultimateString = A.S(penultimate);
+          penultimateString = parts.pop();
+          $length += ultimateString.length + 2;
+        } else {
+          ultimate = it.get$current(it);
+          ++count;
+          for (; it.moveNext$0(); penultimate = ultimate, ultimate = ultimate0) {
+            ultimate0 = it.get$current(it);
+            ++count;
+            if (count > 100) {
+              while (true) {
+                if (!($length > 75 && count > 3))
+                  break;
+                $length -= parts.pop().length + 2;
+                --count;
+              }
+              parts.push("...");
+              return;
+            }
+          }
+          penultimateString = A.S(penultimate);
+          ultimateString = A.S(ultimate);
+          $length += ultimateString.length + penultimateString.length + 4;
+        }
+      }
+      if (count > parts.length + 2) {
+        $length += 5;
+        elision = "...";
+      } else
+        elision = null;
+      while (true) {
+        if (!($length > 80 && parts.length > 3))
+          break;
+        $length -= parts.pop().length + 2;
+        if (elision == null) {
+          $length += 5;
+          elision = "...";
+        }
+      }
+      if (elision != null)
+        parts.push(elision);
+      parts.push(penultimateString);
+      parts.push(ultimateString);
+    },
+    Map_castFrom(source, $K, $V, K2, V2) {
+      return new A.CastMap(source, $K._eval$1("@<0>")._bind$1($V)._bind$1(K2)._bind$1(V2)._eval$1("CastMap<1,2,3,4>"));
+    },
+    Object_hash(object1, object2, object3, object4) {
+      var t1;
+      if (B.C_SentinelValue === object3) {
+        t1 = J.get$hashCode$(object1);
+        object2 = J.get$hashCode$(object2);
+        return A.SystemHash_finish(A.SystemHash_combine(A.SystemHash_combine($.$get$_hashSeed(), t1), object2));
+      }
+      if (B.C_SentinelValue === object4) {
+        t1 = J.get$hashCode$(object1);
+        object2 = J.get$hashCode$(object2);
+        object3 = J.get$hashCode$(object3);
+        return A.SystemHash_finish(A.SystemHash_combine(A.SystemHash_combine(A.SystemHash_combine($.$get$_hashSeed(), t1), object2), object3));
+      }
+      t1 = J.get$hashCode$(object1);
+      object2 = J.get$hashCode$(object2);
+      object3 = J.get$hashCode$(object3);
+      object4 = J.get$hashCode$(object4);
+      object4 = A.SystemHash_finish(A.SystemHash_combine(A.SystemHash_combine(A.SystemHash_combine(A.SystemHash_combine($.$get$_hashSeed(), t1), object2), object3), object4));
+      return object4;
+    },
+    Object_hashAll(objects) {
+      var t1, _i,
+        hash = $.$get$_hashSeed();
+      for (t1 = objects.length, _i = 0; _i < objects.length; objects.length === t1 || (0, A.throwConcurrentModificationError)(objects), ++_i)
+        hash = A.SystemHash_combine(hash, J.get$hashCode$(objects[_i]));
+      return A.SystemHash_finish(hash);
+    },
+    print(object) {
+      var line = A.S(object),
+        toZone = $.printToZone;
+      if (toZone == null)
+        A.printString(line);
+      else
+        toZone.call$1(line);
+    },
+    Set_Set$unmodifiable(elements, $E) {
+      return new A.UnmodifiableSetView(A.LinkedHashSet_LinkedHashSet$of(elements, $E), $E._eval$1("UnmodifiableSetView<0>"));
+    },
+    Set_castFrom(source, newSet, $S, $T) {
+      return new A.CastSet(source, newSet, $S._eval$1("@<0>")._bind$1($T)._eval$1("CastSet<1,2>"));
+    },
+    _combineSurrogatePair(start, end) {
+      return 65536 + ((start & 1023) << 10) + (end & 1023);
+    },
+    Uri_Uri$dataFromString($content, encoding, mimeType) {
+      var encodingName, t1,
+        buffer = new A.StringBuffer(""),
+        indices = A._setArrayType([-1], type$.JSArray_int);
+      if (encoding == null)
+        encodingName = null;
+      else
+        encodingName = "utf-8";
+      if (encoding == null)
+        encoding = B.C_AsciiCodec;
+      A.UriData__writeUri(mimeType, encodingName, null, buffer, indices);
+      indices.push(buffer._contents.length);
+      buffer._contents += ",";
+      A.UriData__uriEncodeBytes(B.List_42A, encoding.encode$1($content), buffer);
+      t1 = buffer._contents;
+      return new A.UriData(t1.charCodeAt(0) == 0 ? t1 : t1, indices, null).get$uri();
+    },
+    Uri_parse(uri) {
+      var delta, indices, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, isSimple, scheme, t1, t2, schemeAuth, queryStart0, pathStart0, userInfoStart, userInfo, host, portNumber, port, path, query, _null = null,
+        end = uri.length;
+      if (end >= 5) {
+        delta = ((uri.charCodeAt(4) ^ 58) * 3 | uri.charCodeAt(0) ^ 100 | uri.charCodeAt(1) ^ 97 | uri.charCodeAt(2) ^ 116 | uri.charCodeAt(3) ^ 97) >>> 0;
+        if (delta === 0)
+          return A.UriData__parse(end < end ? B.JSString_methods.substring$2(uri, 0, end) : uri, 5, _null).get$uri();
+        else if (delta === 32)
+          return A.UriData__parse(B.JSString_methods.substring$2(uri, 5, end), 0, _null).get$uri();
+      }
+      indices = A.List_List$filled(8, 0, false, type$.int);
+      indices[0] = 0;
+      indices[1] = -1;
+      indices[2] = -1;
+      indices[7] = -1;
+      indices[3] = 0;
+      indices[4] = 0;
+      indices[5] = end;
+      indices[6] = end;
+      if (A._scan(uri, 0, end, 0, indices) >= 14)
+        indices[7] = end;
+      schemeEnd = indices[1];
+      if (schemeEnd >= 0)
+        if (A._scan(uri, 0, schemeEnd, 20, indices) === 20)
+          indices[7] = schemeEnd;
+      hostStart = indices[2] + 1;
+      portStart = indices[3];
+      pathStart = indices[4];
+      queryStart = indices[5];
+      fragmentStart = indices[6];
+      if (fragmentStart < queryStart)
+        queryStart = fragmentStart;
+      if (pathStart < hostStart)
+        pathStart = queryStart;
+      else if (pathStart <= schemeEnd)
+        pathStart = schemeEnd + 1;
+      if (portStart < hostStart)
+        portStart = pathStart;
+      isSimple = indices[7] < 0;
+      if (isSimple)
+        if (hostStart > schemeEnd + 3) {
+          scheme = _null;
+          isSimple = false;
+        } else {
+          t1 = portStart > 0;
+          if (t1 && portStart + 1 === pathStart) {
+            scheme = _null;
+            isSimple = false;
+          } else {
+            if (!B.JSString_methods.startsWith$2(uri, "\\", pathStart))
+              if (hostStart > 0)
+                t2 = B.JSString_methods.startsWith$2(uri, "\\", hostStart - 1) || B.JSString_methods.startsWith$2(uri, "\\", hostStart - 2);
+              else
+                t2 = false;
+            else
+              t2 = true;
+            if (t2) {
+              scheme = _null;
+              isSimple = false;
+            } else {
+              if (!(queryStart < end && queryStart === pathStart + 2 && B.JSString_methods.startsWith$2(uri, "..", pathStart)))
+                t2 = queryStart > pathStart + 2 && B.JSString_methods.startsWith$2(uri, "/..", queryStart - 3);
+              else
+                t2 = true;
+              if (t2)
+                scheme = _null;
+              else if (schemeEnd === 4)
+                if (B.JSString_methods.startsWith$2(uri, "file", 0)) {
+                  if (hostStart <= 0) {
+                    if (!B.JSString_methods.startsWith$2(uri, "/", pathStart)) {
+                      schemeAuth = "file:///";
+                      delta = 3;
+                    } else {
+                      schemeAuth = "file://";
+                      delta = 2;
+                    }
+                    uri = schemeAuth + B.JSString_methods.substring$2(uri, pathStart, end);
+                    schemeEnd -= 0;
+                    t1 = delta - 0;
+                    queryStart += t1;
+                    fragmentStart += t1;
+                    end = uri.length;
+                    hostStart = 7;
+                    portStart = 7;
+                    pathStart = 7;
+                  } else if (pathStart === queryStart) {
+                    ++fragmentStart;
+                    queryStart0 = queryStart + 1;
+                    uri = B.JSString_methods.replaceRange$3(uri, pathStart, queryStart, "/");
+                    ++end;
+                    queryStart = queryStart0;
+                  }
+                  scheme = "file";
+                } else if (B.JSString_methods.startsWith$2(uri, "http", 0)) {
+                  if (t1 && portStart + 3 === pathStart && B.JSString_methods.startsWith$2(uri, "80", portStart + 1)) {
+                    fragmentStart -= 3;
+                    pathStart0 = pathStart - 3;
+                    queryStart -= 3;
+                    uri = B.JSString_methods.replaceRange$3(uri, portStart, pathStart, "");
+                    end -= 3;
+                    pathStart = pathStart0;
+                  }
+                  scheme = "http";
+                } else
+                  scheme = _null;
+              else if (schemeEnd === 5 && B.JSString_methods.startsWith$2(uri, "https", 0)) {
+                if (t1 && portStart + 4 === pathStart && B.JSString_methods.startsWith$2(uri, "443", portStart + 1)) {
+                  fragmentStart -= 4;
+                  pathStart0 = pathStart - 4;
+                  queryStart -= 4;
+                  uri = B.JSString_methods.replaceRange$3(uri, portStart, pathStart, "");
+                  end -= 3;
+                  pathStart = pathStart0;
+                }
+                scheme = "https";
+              } else
+                scheme = _null;
+              isSimple = !t2;
+            }
+          }
+        }
+      else
+        scheme = _null;
+      if (isSimple) {
+        if (end < uri.length) {
+          uri = B.JSString_methods.substring$2(uri, 0, end);
+          schemeEnd -= 0;
+          hostStart -= 0;
+          portStart -= 0;
+          pathStart -= 0;
+          queryStart -= 0;
+          fragmentStart -= 0;
+        }
+        return new A._SimpleUri(uri, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme);
+      }
+      if (scheme == null)
+        if (schemeEnd > 0)
+          scheme = A._Uri__makeScheme(uri, 0, schemeEnd);
+        else {
+          if (schemeEnd === 0)
+            A._Uri__fail(uri, 0, "Invalid empty scheme");
+          scheme = "";
+        }
+      if (hostStart > 0) {
+        userInfoStart = schemeEnd + 3;
+        userInfo = userInfoStart < hostStart ? A._Uri__makeUserInfo(uri, userInfoStart, hostStart - 1) : "";
+        host = A._Uri__makeHost(uri, hostStart, portStart, false);
+        t1 = portStart + 1;
+        if (t1 < pathStart) {
+          portNumber = A.Primitives_parseInt(B.JSString_methods.substring$2(uri, t1, pathStart), _null);
+          port = A._Uri__makePort(portNumber == null ? A.throwExpression(A.FormatException$("Invalid port", uri, t1)) : portNumber, scheme);
+        } else
+          port = _null;
+      } else {
+        port = _null;
+        host = port;
+        userInfo = "";
+      }
+      path = A._Uri__makePath(uri, pathStart, queryStart, _null, scheme, host != null);
+      query = queryStart < fragmentStart ? A._Uri__makeQuery(uri, queryStart + 1, fragmentStart, _null) : _null;
+      return A._Uri$_internal(scheme, userInfo, host, port, path, query, fragmentStart < end ? A._Uri__makeFragment(uri, fragmentStart + 1, end) : _null);
+    },
+    Uri_decodeComponent(encodedComponent) {
+      return A._Uri__uriDecode(encodedComponent, 0, encodedComponent.length, B.C_Utf8Codec, false);
+    },
+    Uri__parseIPv4Address(host, start, end) {
+      var i, partStart, partIndex, char, part, partIndex0,
+        _s43_ = "IPv4 address should contain exactly 4 parts",
+        _s37_ = "each part must be in the range 0..255",
+        error = new A.Uri__parseIPv4Address_error(host),
+        result = new Uint8Array(4);
+      for (i = start, partStart = i, partIndex = 0; i < end; ++i) {
+        char = host.charCodeAt(i);
+        if (char !== 46) {
+          if ((char ^ 48) > 9)
+            error.call$2("invalid character", i);
+        } else {
+          if (partIndex === 3)
+            error.call$2(_s43_, i);
+          part = A.int_parse(B.JSString_methods.substring$2(host, partStart, i), null);
+          if (part > 255)
+            error.call$2(_s37_, partStart);
+          partIndex0 = partIndex + 1;
+          result[partIndex] = part;
+          partStart = i + 1;
+          partIndex = partIndex0;
+        }
+      }
+      if (partIndex !== 3)
+        error.call$2(_s43_, end);
+      part = A.int_parse(B.JSString_methods.substring$2(host, partStart, end), null);
+      if (part > 255)
+        error.call$2(_s37_, partStart);
+      result[partIndex] = part;
+      return result;
+    },
+    Uri_parseIPv6Address(host, start, end) {
+      var parts, i, partStart, wildcardSeen, seenDot, char, atEnd, t1, last, bytes, wildCardLength, index, value, j, _null = null,
+        error = new A.Uri_parseIPv6Address_error(host),
+        parseHex = new A.Uri_parseIPv6Address_parseHex(error, host);
+      if (host.length < 2)
+        error.call$2("address is too short", _null);
+      parts = A._setArrayType([], type$.JSArray_int);
+      for (i = start, partStart = i, wildcardSeen = false, seenDot = false; i < end; ++i) {
+        char = host.charCodeAt(i);
+        if (char === 58) {
+          if (i === start) {
+            ++i;
+            if (host.charCodeAt(i) !== 58)
+              error.call$2("invalid start colon.", i);
+            partStart = i;
+          }
+          if (i === partStart) {
+            if (wildcardSeen)
+              error.call$2("only one wildcard `::` is allowed", i);
+            parts.push(-1);
+            wildcardSeen = true;
+          } else
+            parts.push(parseHex.call$2(partStart, i));
+          partStart = i + 1;
+        } else if (char === 46)
+          seenDot = true;
+      }
+      if (parts.length === 0)
+        error.call$2("too few parts", _null);
+      atEnd = partStart === end;
+      t1 = B.JSArray_methods.get$last(parts);
+      if (atEnd && t1 !== -1)
+        error.call$2("expected a part after last `:`", end);
+      if (!atEnd)
+        if (!seenDot)
+          parts.push(parseHex.call$2(partStart, end));
+        else {
+          last = A.Uri__parseIPv4Address(host, partStart, end);
+          parts.push((last[0] << 8 | last[1]) >>> 0);
+          parts.push((last[2] << 8 | last[3]) >>> 0);
+        }
+      if (wildcardSeen) {
+        if (parts.length > 7)
+          error.call$2("an address with a wildcard must have less than 7 parts", _null);
+      } else if (parts.length !== 8)
+        error.call$2("an address without a wildcard must contain exactly 8 parts", _null);
+      bytes = new Uint8Array(16);
+      for (t1 = parts.length, wildCardLength = 9 - t1, i = 0, index = 0; i < t1; ++i) {
+        value = parts[i];
+        if (value === -1)
+          for (j = 0; j < wildCardLength; ++j) {
+            bytes[index] = 0;
+            bytes[index + 1] = 0;
+            index += 2;
+          }
+        else {
+          bytes[index] = B.JSInt_methods._shrOtherPositive$1(value, 8);
+          bytes[index + 1] = value & 255;
+          index += 2;
+        }
+      }
+      return bytes;
+    },
+    _Uri$_internal(scheme, _userInfo, _host, _port, path, _query, _fragment) {
+      return new A._Uri(scheme, _userInfo, _host, _port, path, _query, _fragment);
+    },
+    _Uri__Uri(host, path, pathSegments, scheme) {
+      var userInfo, query, fragment, port, isFile, t1, hasAuthority, t2, _null = null;
+      scheme = scheme == null ? "" : A._Uri__makeScheme(scheme, 0, scheme.length);
+      userInfo = A._Uri__makeUserInfo(_null, 0, 0);
+      host = A._Uri__makeHost(host, 0, host == null ? 0 : host.length, false);
+      query = A._Uri__makeQuery(_null, 0, 0, _null);
+      fragment = A._Uri__makeFragment(_null, 0, 0);
+      port = A._Uri__makePort(_null, scheme);
+      isFile = scheme === "file";
+      if (host == null)
+        t1 = userInfo.length !== 0 || port != null || isFile;
+      else
+        t1 = false;
+      if (t1)
+        host = "";
+      t1 = host == null;
+      hasAuthority = !t1;
+      path = A._Uri__makePath(path, 0, path == null ? 0 : path.length, pathSegments, scheme, hasAuthority);
+      t2 = scheme.length === 0;
+      if (t2 && t1 && !B.JSString_methods.startsWith$1(path, "/"))
+        path = A._Uri__normalizeRelativePath(path, !t2 || hasAuthority);
+      else
+        path = A._Uri__removeDotSegments(path);
+      return A._Uri$_internal(scheme, userInfo, t1 && B.JSString_methods.startsWith$1(path, "//") ? "" : host, port, path, query, fragment);
+    },
+    _Uri__defaultPort(scheme) {
+      if (scheme === "http")
+        return 80;
+      if (scheme === "https")
+        return 443;
+      return 0;
+    },
+    _Uri__fail(uri, index, message) {
+      throw A.wrapException(A.FormatException$(message, uri, index));
+    },
+    _Uri__Uri$file(path, windows) {
+      return windows ? A._Uri__makeWindowsFileUrl(path, false) : A._Uri__makeFileUri(path, false);
+    },
+    _Uri__checkNonWindowsPathReservedCharacters(segments, argumentError) {
+      var t1, _i, segment, t2, t3;
+      for (t1 = segments.length, _i = 0; _i < t1; ++_i) {
+        segment = segments[_i];
+        t2 = J.getInterceptor$asx(segment);
+        t3 = t2.get$length(segment);
+        if (0 > t3)
+          A.throwExpression(A.RangeError$range(0, 0, t2.get$length(segment), null, null));
+        if (A.stringContainsUnchecked(segment, "/", 0)) {
+          t1 = A.UnsupportedError$("Illegal path character " + A.S(segment));
+          throw A.wrapException(t1);
+        }
+      }
+    },
+    _Uri__checkWindowsPathReservedCharacters(segments, argumentError, firstSegment) {
+      var t1, t2, t3, t4;
+      for (t1 = A.SubListIterable$(segments, firstSegment, null, A._arrayInstanceType(segments)._precomputed1), t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListIterable.E>")), t2 = t2._eval$1("ListIterable.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        t4 = A.RegExp_RegExp('["*/:<>?\\\\|]', false);
+        if (A.stringContainsUnchecked(t3, t4, 0))
+          if (argumentError)
+            throw A.wrapException(A.ArgumentError$("Illegal character in path", null));
+          else
+            throw A.wrapException(A.UnsupportedError$("Illegal character in path: " + t3));
+      }
+    },
+    _Uri__checkWindowsDriveLetter(charCode, argumentError) {
+      var t1,
+        _s21_ = "Illegal drive letter ";
+      if (!(65 <= charCode && charCode <= 90))
+        t1 = 97 <= charCode && charCode <= 122;
+      else
+        t1 = true;
+      if (t1)
+        return;
+      if (argumentError)
+        throw A.wrapException(A.ArgumentError$(_s21_ + A.String_String$fromCharCode(charCode), null));
+      else
+        throw A.wrapException(A.UnsupportedError$(_s21_ + A.String_String$fromCharCode(charCode)));
+    },
+    _Uri__makeFileUri(path, slashTerminated) {
+      var _null = null,
+        segments = A._setArrayType(path.split("/"), type$.JSArray_String);
+      if (B.JSString_methods.startsWith$1(path, "/"))
+        return A._Uri__Uri(_null, _null, segments, "file");
+      else
+        return A._Uri__Uri(_null, _null, segments, _null);
+    },
+    _Uri__makeWindowsFileUrl(path, slashTerminated) {
+      var t1, pathSegments, pathStart, hostPart, _s1_ = "\\", _null = null, _s4_ = "file";
+      if (B.JSString_methods.startsWith$1(path, "\\\\?\\"))
+        if (B.JSString_methods.startsWith$2(path, "UNC\\", 4))
+          path = B.JSString_methods.replaceRange$3(path, 0, 7, _s1_);
+        else {
+          path = B.JSString_methods.substring$1(path, 4);
+          if (path.length < 3 || path.charCodeAt(1) !== 58 || path.charCodeAt(2) !== 92)
+            throw A.wrapException(A.ArgumentError$value(path, "path", "Windows paths with \\\\?\\ prefix must be absolute"));
+        }
+      else
+        path = A.stringReplaceAllUnchecked(path, "/", _s1_);
+      t1 = path.length;
+      if (t1 > 1 && path.charCodeAt(1) === 58) {
+        A._Uri__checkWindowsDriveLetter(path.charCodeAt(0), true);
+        if (t1 === 2 || path.charCodeAt(2) !== 92)
+          throw A.wrapException(A.ArgumentError$value(path, "path", "Windows paths with drive letter must be absolute"));
+        pathSegments = A._setArrayType(path.split(_s1_), type$.JSArray_String);
+        A._Uri__checkWindowsPathReservedCharacters(pathSegments, true, 1);
+        return A._Uri__Uri(_null, _null, pathSegments, _s4_);
+      }
+      if (B.JSString_methods.startsWith$1(path, _s1_))
+        if (B.JSString_methods.startsWith$2(path, _s1_, 1)) {
+          pathStart = B.JSString_methods.indexOf$2(path, _s1_, 2);
+          t1 = pathStart < 0;
+          hostPart = t1 ? B.JSString_methods.substring$1(path, 2) : B.JSString_methods.substring$2(path, 2, pathStart);
+          pathSegments = A._setArrayType((t1 ? "" : B.JSString_methods.substring$1(path, pathStart + 1)).split(_s1_), type$.JSArray_String);
+          A._Uri__checkWindowsPathReservedCharacters(pathSegments, true, 0);
+          return A._Uri__Uri(hostPart, _null, pathSegments, _s4_);
+        } else {
+          pathSegments = A._setArrayType(path.split(_s1_), type$.JSArray_String);
+          A._Uri__checkWindowsPathReservedCharacters(pathSegments, true, 0);
+          return A._Uri__Uri(_null, _null, pathSegments, _s4_);
+        }
+      else {
+        pathSegments = A._setArrayType(path.split(_s1_), type$.JSArray_String);
+        A._Uri__checkWindowsPathReservedCharacters(pathSegments, true, 0);
+        return A._Uri__Uri(_null, _null, pathSegments, _null);
+      }
+    },
+    _Uri__makePort(port, scheme) {
+      if (port != null && port === A._Uri__defaultPort(scheme))
+        return null;
+      return port;
+    },
+    _Uri__makeHost(host, start, end, strictIPv6) {
+      var t1, t2, index, zoneIDstart, zoneID, i;
+      if (host == null)
+        return null;
+      if (start === end)
+        return "";
+      if (host.charCodeAt(start) === 91) {
+        t1 = end - 1;
+        if (host.charCodeAt(t1) !== 93)
+          A._Uri__fail(host, start, "Missing end `]` to match `[` in host");
+        t2 = start + 1;
+        index = A._Uri__checkZoneID(host, t2, t1);
+        if (index < t1) {
+          zoneIDstart = index + 1;
+          zoneID = A._Uri__normalizeZoneID(host, B.JSString_methods.startsWith$2(host, "25", zoneIDstart) ? index + 3 : zoneIDstart, t1, "%25");
+        } else
+          zoneID = "";
+        A.Uri_parseIPv6Address(host, t2, index);
+        return B.JSString_methods.substring$2(host, start, index).toLowerCase() + zoneID + "]";
+      }
+      for (i = start; i < end; ++i)
+        if (host.charCodeAt(i) === 58) {
+          index = B.JSString_methods.indexOf$2(host, "%", start);
+          index = index >= start && index < end ? index : end;
+          if (index < end) {
+            zoneIDstart = index + 1;
+            zoneID = A._Uri__normalizeZoneID(host, B.JSString_methods.startsWith$2(host, "25", zoneIDstart) ? index + 3 : zoneIDstart, end, "%25");
+          } else
+            zoneID = "";
+          A.Uri_parseIPv6Address(host, start, index);
+          return "[" + B.JSString_methods.substring$2(host, start, index) + zoneID + "]";
+        }
+      return A._Uri__normalizeRegName(host, start, end);
+    },
+    _Uri__checkZoneID(host, start, end) {
+      var index = B.JSString_methods.indexOf$2(host, "%", start);
+      return index >= start && index < end ? index : end;
+    },
+    _Uri__normalizeZoneID(host, start, end, prefix) {
+      var index, sectionStart, isNormalized, char, replacement, t1, t2, tail, sourceLength, slice,
+        buffer = prefix !== "" ? new A.StringBuffer(prefix) : null;
+      for (index = start, sectionStart = index, isNormalized = true; index < end;) {
+        char = host.charCodeAt(index);
+        if (char === 37) {
+          replacement = A._Uri__normalizeEscape(host, index, true);
+          t1 = replacement == null;
+          if (t1 && isNormalized) {
+            index += 3;
+            continue;
+          }
+          if (buffer == null)
+            buffer = new A.StringBuffer("");
+          t2 = buffer._contents += B.JSString_methods.substring$2(host, sectionStart, index);
+          if (t1)
+            replacement = B.JSString_methods.substring$2(host, index, index + 3);
+          else if (replacement === "%")
+            A._Uri__fail(host, index, "ZoneID should not contain % anymore");
+          buffer._contents = t2 + replacement;
+          index += 3;
+          sectionStart = index;
+          isNormalized = true;
+        } else if (char < 127 && (B.List_piR[char >>> 4] & 1 << (char & 15)) !== 0) {
+          if (isNormalized && 65 <= char && 90 >= char) {
+            if (buffer == null)
+              buffer = new A.StringBuffer("");
+            if (sectionStart < index) {
+              buffer._contents += B.JSString_methods.substring$2(host, sectionStart, index);
+              sectionStart = index;
+            }
+            isNormalized = false;
+          }
+          ++index;
+        } else {
+          if ((char & 64512) === 55296 && index + 1 < end) {
+            tail = host.charCodeAt(index + 1);
+            if ((tail & 64512) === 56320) {
+              char = (char & 1023) << 10 | tail & 1023 | 65536;
+              sourceLength = 2;
+            } else
+              sourceLength = 1;
+          } else
+            sourceLength = 1;
+          slice = B.JSString_methods.substring$2(host, sectionStart, index);
+          if (buffer == null) {
+            buffer = new A.StringBuffer("");
+            t1 = buffer;
+          } else
+            t1 = buffer;
+          t1._contents += slice;
+          t2 = A._Uri__escapeChar(char);
+          t1._contents += t2;
+          index += sourceLength;
+          sectionStart = index;
+        }
+      }
+      if (buffer == null)
+        return B.JSString_methods.substring$2(host, start, end);
+      if (sectionStart < end) {
+        slice = B.JSString_methods.substring$2(host, sectionStart, end);
+        buffer._contents += slice;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _Uri__normalizeRegName(host, start, end) {
+      var index, sectionStart, buffer, isNormalized, char, replacement, t1, slice, t2, sourceLength, tail;
+      for (index = start, sectionStart = index, buffer = null, isNormalized = true; index < end;) {
+        char = host.charCodeAt(index);
+        if (char === 37) {
+          replacement = A._Uri__normalizeEscape(host, index, true);
+          t1 = replacement == null;
+          if (t1 && isNormalized) {
+            index += 3;
+            continue;
+          }
+          if (buffer == null)
+            buffer = new A.StringBuffer("");
+          slice = B.JSString_methods.substring$2(host, sectionStart, index);
+          if (!isNormalized)
+            slice = slice.toLowerCase();
+          t2 = buffer._contents += slice;
+          if (t1) {
+            replacement = B.JSString_methods.substring$2(host, index, index + 3);
+            sourceLength = 3;
+          } else if (replacement === "%") {
+            replacement = "%25";
+            sourceLength = 1;
+          } else
+            sourceLength = 3;
+          buffer._contents = t2 + replacement;
+          index += sourceLength;
+          sectionStart = index;
+          isNormalized = true;
+        } else if (char < 127 && (B.List_4AN[char >>> 4] & 1 << (char & 15)) !== 0) {
+          if (isNormalized && 65 <= char && 90 >= char) {
+            if (buffer == null)
+              buffer = new A.StringBuffer("");
+            if (sectionStart < index) {
+              buffer._contents += B.JSString_methods.substring$2(host, sectionStart, index);
+              sectionStart = index;
+            }
+            isNormalized = false;
+          }
+          ++index;
+        } else if (char <= 93 && (B.List_VOY[char >>> 4] & 1 << (char & 15)) !== 0)
+          A._Uri__fail(host, index, "Invalid character");
+        else {
+          if ((char & 64512) === 55296 && index + 1 < end) {
+            tail = host.charCodeAt(index + 1);
+            if ((tail & 64512) === 56320) {
+              char = (char & 1023) << 10 | tail & 1023 | 65536;
+              sourceLength = 2;
+            } else
+              sourceLength = 1;
+          } else
+            sourceLength = 1;
+          slice = B.JSString_methods.substring$2(host, sectionStart, index);
+          if (!isNormalized)
+            slice = slice.toLowerCase();
+          if (buffer == null) {
+            buffer = new A.StringBuffer("");
+            t1 = buffer;
+          } else
+            t1 = buffer;
+          t1._contents += slice;
+          t2 = A._Uri__escapeChar(char);
+          t1._contents += t2;
+          index += sourceLength;
+          sectionStart = index;
+        }
+      }
+      if (buffer == null)
+        return B.JSString_methods.substring$2(host, start, end);
+      if (sectionStart < end) {
+        slice = B.JSString_methods.substring$2(host, sectionStart, end);
+        if (!isNormalized)
+          slice = slice.toLowerCase();
+        buffer._contents += slice;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _Uri__makeScheme(scheme, start, end) {
+      var i, containsUpperCase, codeUnit;
+      if (start === end)
+        return "";
+      if (!A._Uri__isAlphabeticCharacter(scheme.charCodeAt(start)))
+        A._Uri__fail(scheme, start, "Scheme not starting with alphabetic character");
+      for (i = start, containsUpperCase = false; i < end; ++i) {
+        codeUnit = scheme.charCodeAt(i);
+        if (!(codeUnit < 128 && (B.List_GVy[codeUnit >>> 4] & 1 << (codeUnit & 15)) !== 0))
+          A._Uri__fail(scheme, i, "Illegal scheme character");
+        if (65 <= codeUnit && codeUnit <= 90)
+          containsUpperCase = true;
+      }
+      scheme = B.JSString_methods.substring$2(scheme, start, end);
+      return A._Uri__canonicalizeScheme(containsUpperCase ? scheme.toLowerCase() : scheme);
+    },
+    _Uri__canonicalizeScheme(scheme) {
+      if (scheme === "http")
+        return "http";
+      if (scheme === "file")
+        return "file";
+      if (scheme === "https")
+        return "https";
+      if (scheme === "package")
+        return "package";
+      return scheme;
+    },
+    _Uri__makeUserInfo(userInfo, start, end) {
+      if (userInfo == null)
+        return "";
+      return A._Uri__normalizeOrSubstring(userInfo, start, end, B.List_2jN, false, false);
+    },
+    _Uri__makePath(path, start, end, pathSegments, scheme, hasAuthority) {
+      var result,
+        isFile = scheme === "file",
+        ensureLeadingSlash = isFile || hasAuthority;
+      if (path == null) {
+        if (pathSegments == null)
+          return isFile ? "/" : "";
+        result = new A.MappedListIterable(pathSegments, new A._Uri__makePath_closure(), A._arrayInstanceType(pathSegments)._eval$1("MappedListIterable<1,String>")).join$1(0, "/");
+      } else if (pathSegments != null)
+        throw A.wrapException(A.ArgumentError$("Both path and pathSegments specified", null));
+      else
+        result = A._Uri__normalizeOrSubstring(path, start, end, B.List_M2I, true, true);
+      if (result.length === 0) {
+        if (isFile)
+          return "/";
+      } else if (ensureLeadingSlash && !B.JSString_methods.startsWith$1(result, "/"))
+        result = "/" + result;
+      return A._Uri__normalizePath(result, scheme, hasAuthority);
+    },
+    _Uri__normalizePath(path, scheme, hasAuthority) {
+      var t1 = scheme.length === 0;
+      if (t1 && !hasAuthority && !B.JSString_methods.startsWith$1(path, "/") && !B.JSString_methods.startsWith$1(path, "\\"))
+        return A._Uri__normalizeRelativePath(path, !t1 || hasAuthority);
+      return A._Uri__removeDotSegments(path);
+    },
+    _Uri__makeQuery(query, start, end, queryParameters) {
+      if (query != null)
+        return A._Uri__normalizeOrSubstring(query, start, end, B.List_42A, true, false);
+      return null;
+    },
+    _Uri__makeFragment(fragment, start, end) {
+      if (fragment == null)
+        return null;
+      return A._Uri__normalizeOrSubstring(fragment, start, end, B.List_42A, true, false);
+    },
+    _Uri__normalizeEscape(source, index, lowerCase) {
+      var firstDigit, secondDigit, firstDigitValue, secondDigitValue, value,
+        t1 = index + 2;
+      if (t1 >= source.length)
+        return "%";
+      firstDigit = source.charCodeAt(index + 1);
+      secondDigit = source.charCodeAt(t1);
+      firstDigitValue = A.hexDigitValue(firstDigit);
+      secondDigitValue = A.hexDigitValue(secondDigit);
+      if (firstDigitValue < 0 || secondDigitValue < 0)
+        return "%";
+      value = firstDigitValue * 16 + secondDigitValue;
+      if (value < 127 && (B.List_piR[B.JSInt_methods._shrOtherPositive$1(value, 4)] & 1 << (value & 15)) !== 0)
+        return A.Primitives_stringFromCharCode(lowerCase && 65 <= value && 90 >= value ? (value | 32) >>> 0 : value);
+      if (firstDigit >= 97 || secondDigit >= 97)
+        return B.JSString_methods.substring$2(source, index, index + 3).toUpperCase();
+      return null;
+    },
+    _Uri__escapeChar(char) {
+      var codeUnits, flag, encodedBytes, index, byte,
+        _s16_ = "0123456789ABCDEF";
+      if (char < 128) {
+        codeUnits = new Uint8Array(3);
+        codeUnits[0] = 37;
+        codeUnits[1] = _s16_.charCodeAt(char >>> 4);
+        codeUnits[2] = _s16_.charCodeAt(char & 15);
+      } else {
+        if (char > 2047)
+          if (char > 65535) {
+            flag = 240;
+            encodedBytes = 4;
+          } else {
+            flag = 224;
+            encodedBytes = 3;
+          }
+        else {
+          flag = 192;
+          encodedBytes = 2;
+        }
+        codeUnits = new Uint8Array(3 * encodedBytes);
+        for (index = 0; --encodedBytes, encodedBytes >= 0; flag = 128) {
+          byte = B.JSInt_methods._shrReceiverPositive$1(char, 6 * encodedBytes) & 63 | flag;
+          codeUnits[index] = 37;
+          codeUnits[index + 1] = _s16_.charCodeAt(byte >>> 4);
+          codeUnits[index + 2] = _s16_.charCodeAt(byte & 15);
+          index += 3;
+        }
+      }
+      return A.String_String$fromCharCodes(codeUnits, 0, null);
+    },
+    _Uri__normalizeOrSubstring(component, start, end, charTable, escapeDelimiters, replaceBackslash) {
+      var t1 = A._Uri__normalize(component, start, end, charTable, escapeDelimiters, replaceBackslash);
+      return t1 == null ? B.JSString_methods.substring$2(component, start, end) : t1;
+    },
+    _Uri__normalize(component, start, end, charTable, escapeDelimiters, replaceBackslash) {
+      var t1, index, sectionStart, buffer, char, replacement, sourceLength, t2, tail, t3, _null = null;
+      for (t1 = !escapeDelimiters, index = start, sectionStart = index, buffer = _null; index < end;) {
+        char = component.charCodeAt(index);
+        if (char < 127 && (charTable[char >>> 4] & 1 << (char & 15)) !== 0)
+          ++index;
+        else {
+          if (char === 37) {
+            replacement = A._Uri__normalizeEscape(component, index, false);
+            if (replacement == null) {
+              index += 3;
+              continue;
+            }
+            if ("%" === replacement) {
+              replacement = "%25";
+              sourceLength = 1;
+            } else
+              sourceLength = 3;
+          } else if (char === 92 && replaceBackslash) {
+            replacement = "/";
+            sourceLength = 1;
+          } else if (t1 && char <= 93 && (B.List_VOY[char >>> 4] & 1 << (char & 15)) !== 0) {
+            A._Uri__fail(component, index, "Invalid character");
+            sourceLength = _null;
+            replacement = sourceLength;
+          } else {
+            if ((char & 64512) === 55296) {
+              t2 = index + 1;
+              if (t2 < end) {
+                tail = component.charCodeAt(t2);
+                if ((tail & 64512) === 56320) {
+                  char = (char & 1023) << 10 | tail & 1023 | 65536;
+                  sourceLength = 2;
+                } else
+                  sourceLength = 1;
+              } else
+                sourceLength = 1;
+            } else
+              sourceLength = 1;
+            replacement = A._Uri__escapeChar(char);
+          }
+          if (buffer == null) {
+            buffer = new A.StringBuffer("");
+            t2 = buffer;
+          } else
+            t2 = buffer;
+          t3 = t2._contents += B.JSString_methods.substring$2(component, sectionStart, index);
+          t2._contents = t3 + A.S(replacement);
+          index += sourceLength;
+          sectionStart = index;
+        }
+      }
+      if (buffer == null)
+        return _null;
+      if (sectionStart < end) {
+        t1 = B.JSString_methods.substring$2(component, sectionStart, end);
+        buffer._contents += t1;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _Uri__mayContainDotSegments(path) {
+      if (B.JSString_methods.startsWith$1(path, "."))
+        return true;
+      return B.JSString_methods.indexOf$1(path, "/.") !== -1;
+    },
+    _Uri__removeDotSegments(path) {
+      var output, t1, t2, appendSlash, _i, segment;
+      if (!A._Uri__mayContainDotSegments(path))
+        return path;
+      output = A._setArrayType([], type$.JSArray_String);
+      for (t1 = path.split("/"), t2 = t1.length, appendSlash = false, _i = 0; _i < t2; ++_i) {
+        segment = t1[_i];
+        if (J.$eq$(segment, "..")) {
+          if (output.length !== 0) {
+            output.pop();
+            if (output.length === 0)
+              output.push("");
+          }
+          appendSlash = true;
+        } else {
+          appendSlash = "." === segment;
+          if (!appendSlash)
+            output.push(segment);
+        }
+      }
+      if (appendSlash)
+        output.push("");
+      return B.JSArray_methods.join$1(output, "/");
+    },
+    _Uri__normalizeRelativePath(path, allowScheme) {
+      var output, t1, t2, appendSlash, _i, segment;
+      if (!A._Uri__mayContainDotSegments(path))
+        return !allowScheme ? A._Uri__escapeScheme(path) : path;
+      output = A._setArrayType([], type$.JSArray_String);
+      for (t1 = path.split("/"), t2 = t1.length, appendSlash = false, _i = 0; _i < t2; ++_i) {
+        segment = t1[_i];
+        if (".." === segment) {
+          appendSlash = output.length !== 0 && B.JSArray_methods.get$last(output) !== "..";
+          if (appendSlash)
+            output.pop();
+          else
+            output.push("..");
+        } else {
+          appendSlash = "." === segment;
+          if (!appendSlash)
+            output.push(segment);
+        }
+      }
+      t1 = output.length;
+      if (t1 !== 0)
+        t1 = t1 === 1 && output[0].length === 0;
+      else
+        t1 = true;
+      if (t1)
+        return "./";
+      if (appendSlash || B.JSArray_methods.get$last(output) === "..")
+        output.push("");
+      if (!allowScheme)
+        output[0] = A._Uri__escapeScheme(output[0]);
+      return B.JSArray_methods.join$1(output, "/");
+    },
+    _Uri__escapeScheme(path) {
+      var i, char,
+        t1 = path.length;
+      if (t1 >= 2 && A._Uri__isAlphabeticCharacter(path.charCodeAt(0)))
+        for (i = 1; i < t1; ++i) {
+          char = path.charCodeAt(i);
+          if (char === 58)
+            return B.JSString_methods.substring$2(path, 0, i) + "%3A" + B.JSString_methods.substring$1(path, i + 1);
+          if (char > 127 || (B.List_GVy[char >>> 4] & 1 << (char & 15)) === 0)
+            break;
+        }
+      return path;
+    },
+    _Uri__packageNameEnd(uri, path) {
+      if (uri.isScheme$1("package") && uri._host == null)
+        return A._skipPackageNameChars(path, 0, path.length);
+      return -1;
+    },
+    _Uri__toWindowsFilePath(uri) {
+      var t2, host,
+        segments = uri.get$pathSegments(),
+        t1 = segments.length,
+        hasDriveLetter = t1 > 0 && J.get$length$asx(segments[0]) === 2 && J.codeUnitAt$1$s(segments[0], 1) === 58;
+      if (hasDriveLetter) {
+        A._Uri__checkWindowsDriveLetter(J.codeUnitAt$1$s(segments[0], 0), false);
+        A._Uri__checkWindowsPathReservedCharacters(segments, false, 1);
+      } else
+        A._Uri__checkWindowsPathReservedCharacters(segments, false, 0);
+      t2 = uri.get$hasAbsolutePath() && !hasDriveLetter ? "" + "\\" : "";
+      if (uri.get$hasAuthority()) {
+        host = uri.get$host();
+        if (host.length !== 0)
+          t2 = t2 + "\\" + host + "\\";
+      }
+      t2 = A.StringBuffer__writeAll(t2, segments, "\\");
+      t1 = hasDriveLetter && t1 === 1 ? t2 + "\\" : t2;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _Uri__hexCharPairToByte(s, pos) {
+      var byte, i, charCode;
+      for (byte = 0, i = 0; i < 2; ++i) {
+        charCode = s.charCodeAt(pos + i);
+        if (48 <= charCode && charCode <= 57)
+          byte = byte * 16 + charCode - 48;
+        else {
+          charCode |= 32;
+          if (97 <= charCode && charCode <= 102)
+            byte = byte * 16 + charCode - 87;
+          else
+            throw A.wrapException(A.ArgumentError$("Invalid URL encoding", null));
+        }
+      }
+      return byte;
+    },
+    _Uri__uriDecode(text, start, end, encoding, plusToSpace) {
+      var simple, codeUnit, t1, bytes,
+        i = start;
+      while (true) {
+        if (!(i < end)) {
+          simple = true;
+          break;
+        }
+        codeUnit = text.charCodeAt(i);
+        if (codeUnit <= 127)
+          t1 = codeUnit === 37;
+        else
+          t1 = true;
+        if (t1) {
+          simple = false;
+          break;
+        }
+        ++i;
+      }
+      if (simple)
+        if (B.C_Utf8Codec === encoding)
+          return B.JSString_methods.substring$2(text, start, end);
+        else
+          bytes = new A.CodeUnits(B.JSString_methods.substring$2(text, start, end));
+      else {
+        bytes = A._setArrayType([], type$.JSArray_int);
+        for (t1 = text.length, i = start; i < end; ++i) {
+          codeUnit = text.charCodeAt(i);
+          if (codeUnit > 127)
+            throw A.wrapException(A.ArgumentError$("Illegal percent encoding in URI", null));
+          if (codeUnit === 37) {
+            if (i + 3 > t1)
+              throw A.wrapException(A.ArgumentError$("Truncated URI", null));
+            bytes.push(A._Uri__hexCharPairToByte(text, i + 1));
+            i += 2;
+          } else
+            bytes.push(codeUnit);
+        }
+      }
+      return B.Utf8Decoder_false.convert$1(bytes);
+    },
+    _Uri__isAlphabeticCharacter(codeUnit) {
+      var lowerCase = codeUnit | 32;
+      return 97 <= lowerCase && lowerCase <= 122;
+    },
+    UriData__writeUri(mimeType, charsetName, parameters, buffer, indices) {
+      var t1, slashIndex;
+      if (mimeType != null)
+        t1 = 10 === mimeType.length && A._caseInsensitiveCompareStart("text/plain", mimeType, 0) >= 0;
+      else
+        t1 = true;
+      if (t1)
+        mimeType = "";
+      if (mimeType.length === 0 || mimeType === "application/octet-stream")
+        t1 = buffer._contents += mimeType;
+      else {
+        slashIndex = A.UriData__validateMimeType(mimeType);
+        if (slashIndex < 0)
+          throw A.wrapException(A.ArgumentError$value(mimeType, "mimeType", "Invalid MIME type"));
+        t1 = A._Uri__uriEncode(B.List_oyU, B.JSString_methods.substring$2(mimeType, 0, slashIndex), B.C_Utf8Codec, false);
+        t1 = buffer._contents += t1;
+        buffer._contents = t1 + "/";
+        t1 = A._Uri__uriEncode(B.List_oyU, B.JSString_methods.substring$1(mimeType, slashIndex + 1), B.C_Utf8Codec, false);
+        t1 = buffer._contents += t1;
+      }
+      if (charsetName != null) {
+        indices.push(t1.length);
+        indices.push(buffer._contents.length + 8);
+        buffer._contents += ";charset=";
+        t1 = A._Uri__uriEncode(B.List_oyU, charsetName, B.C_Utf8Codec, false);
+        buffer._contents += t1;
+      }
+    },
+    UriData__validateMimeType(mimeType) {
+      var t1, slashIndex, i;
+      for (t1 = mimeType.length, slashIndex = -1, i = 0; i < t1; ++i) {
+        if (mimeType.charCodeAt(i) !== 47)
+          continue;
+        if (slashIndex < 0) {
+          slashIndex = i;
+          continue;
+        }
+        return -1;
+      }
+      return slashIndex;
+    },
+    UriData__parse(text, start, sourceUri) {
+      var t1, i, slashIndex, char, equalsIndex, lastSeparator, t2, data,
+        _s17_ = "Invalid MIME type",
+        indices = A._setArrayType([start - 1], type$.JSArray_int);
+      for (t1 = text.length, i = start, slashIndex = -1, char = null; i < t1; ++i) {
+        char = text.charCodeAt(i);
+        if (char === 44 || char === 59)
+          break;
+        if (char === 47) {
+          if (slashIndex < 0) {
+            slashIndex = i;
+            continue;
+          }
+          throw A.wrapException(A.FormatException$(_s17_, text, i));
+        }
+      }
+      if (slashIndex < 0 && i > start)
+        throw A.wrapException(A.FormatException$(_s17_, text, i));
+      for (; char !== 44;) {
+        indices.push(i);
+        ++i;
+        for (equalsIndex = -1; i < t1; ++i) {
+          char = text.charCodeAt(i);
+          if (char === 61) {
+            if (equalsIndex < 0)
+              equalsIndex = i;
+          } else if (char === 59 || char === 44)
+            break;
+        }
+        if (equalsIndex >= 0)
+          indices.push(equalsIndex);
+        else {
+          lastSeparator = B.JSArray_methods.get$last(indices);
+          if (char !== 44 || i !== lastSeparator + 7 || !B.JSString_methods.startsWith$2(text, "base64", lastSeparator + 1))
+            throw A.wrapException(A.FormatException$("Expecting '='", text, i));
+          break;
+        }
+      }
+      indices.push(i);
+      t2 = i + 1;
+      if ((indices.length & 1) === 1)
+        text = B.C_Base64Codec.normalize$3(text, t2, t1);
+      else {
+        data = A._Uri__normalize(text, t2, t1, B.List_42A, true, false);
+        if (data != null)
+          text = B.JSString_methods.replaceRange$3(text, t2, t1, data);
+      }
+      return new A.UriData(text, indices, sourceUri);
+    },
+    UriData__uriEncodeBytes(canonicalTable, bytes, buffer) {
+      var t1, byteOr, i, byte, t2,
+        _s16_ = "0123456789ABCDEF";
+      for (t1 = bytes.length, byteOr = 0, i = 0; i < t1; ++i) {
+        byte = bytes[i];
+        byteOr |= byte;
+        if (byte < 128 && (canonicalTable[byte >>> 4] & 1 << (byte & 15)) !== 0) {
+          t2 = A.Primitives_stringFromCharCode(byte);
+          buffer._contents += t2;
+        } else {
+          t2 = A.Primitives_stringFromCharCode(37);
+          buffer._contents += t2;
+          t2 = A.Primitives_stringFromCharCode(_s16_.charCodeAt(byte >>> 4));
+          buffer._contents += t2;
+          t2 = A.Primitives_stringFromCharCode(_s16_.charCodeAt(byte & 15));
+          buffer._contents += t2;
+        }
+      }
+      if ((byteOr & 4294967040) !== 0)
+        for (i = 0; i < t1; ++i) {
+          byte = bytes[i];
+          if (byte > 255)
+            throw A.wrapException(A.ArgumentError$value(byte, "non-byte value", null));
+        }
+    },
+    _createTables() {
+      var _i, t1, t2, t3, b,
+        _s77_ = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-._~!$&'()*+,;=",
+        _s1_ = ".", _s1_0 = ":", _s1_1 = "/", _s1_2 = "\\", _s1_3 = "?", _s1_4 = "#", _s2_ = "/\\",
+        tables = J.JSArray_JSArray$allocateGrowable(22, type$.Uint8List);
+      for (_i = 0; _i < 22; ++_i)
+        tables[_i] = new Uint8Array(96);
+      t1 = new A._createTables_build(tables);
+      t2 = new A._createTables_setChars();
+      t3 = new A._createTables_setRange();
+      b = t1.call$2(0, 225);
+      t2.call$3(b, _s77_, 1);
+      t2.call$3(b, _s1_, 14);
+      t2.call$3(b, _s1_0, 34);
+      t2.call$3(b, _s1_1, 3);
+      t2.call$3(b, _s1_2, 227);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(14, 225);
+      t2.call$3(b, _s77_, 1);
+      t2.call$3(b, _s1_, 15);
+      t2.call$3(b, _s1_0, 34);
+      t2.call$3(b, _s2_, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(15, 225);
+      t2.call$3(b, _s77_, 1);
+      t2.call$3(b, "%", 225);
+      t2.call$3(b, _s1_0, 34);
+      t2.call$3(b, _s1_1, 9);
+      t2.call$3(b, _s1_2, 233);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(1, 225);
+      t2.call$3(b, _s77_, 1);
+      t2.call$3(b, _s1_0, 34);
+      t2.call$3(b, _s1_1, 10);
+      t2.call$3(b, _s1_2, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(2, 235);
+      t2.call$3(b, _s77_, 139);
+      t2.call$3(b, _s1_1, 131);
+      t2.call$3(b, _s1_2, 131);
+      t2.call$3(b, _s1_, 146);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(3, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_1, 68);
+      t2.call$3(b, _s1_2, 68);
+      t2.call$3(b, _s1_, 18);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(4, 229);
+      t2.call$3(b, _s77_, 5);
+      t3.call$3(b, "AZ", 229);
+      t2.call$3(b, _s1_0, 102);
+      t2.call$3(b, "@", 68);
+      t2.call$3(b, "[", 232);
+      t2.call$3(b, _s1_1, 138);
+      t2.call$3(b, _s1_2, 138);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(5, 229);
+      t2.call$3(b, _s77_, 5);
+      t3.call$3(b, "AZ", 229);
+      t2.call$3(b, _s1_0, 102);
+      t2.call$3(b, "@", 68);
+      t2.call$3(b, _s1_1, 138);
+      t2.call$3(b, _s1_2, 138);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(6, 231);
+      t3.call$3(b, "19", 7);
+      t2.call$3(b, "@", 68);
+      t2.call$3(b, _s1_1, 138);
+      t2.call$3(b, _s1_2, 138);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(7, 231);
+      t3.call$3(b, "09", 7);
+      t2.call$3(b, "@", 68);
+      t2.call$3(b, _s1_1, 138);
+      t2.call$3(b, _s1_2, 138);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      t2.call$3(t1.call$2(8, 8), "]", 5);
+      b = t1.call$2(9, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_, 16);
+      t2.call$3(b, _s2_, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(16, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_, 17);
+      t2.call$3(b, _s2_, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(17, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_1, 9);
+      t2.call$3(b, _s1_2, 233);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(10, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_, 18);
+      t2.call$3(b, _s1_1, 10);
+      t2.call$3(b, _s1_2, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(18, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_, 19);
+      t2.call$3(b, _s2_, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(19, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s2_, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(11, 235);
+      t2.call$3(b, _s77_, 11);
+      t2.call$3(b, _s1_1, 10);
+      t2.call$3(b, _s1_2, 234);
+      t2.call$3(b, _s1_3, 172);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(12, 236);
+      t2.call$3(b, _s77_, 12);
+      t2.call$3(b, _s1_3, 12);
+      t2.call$3(b, _s1_4, 205);
+      b = t1.call$2(13, 237);
+      t2.call$3(b, _s77_, 13);
+      t2.call$3(b, _s1_3, 13);
+      t3.call$3(t1.call$2(20, 245), "az", 21);
+      b = t1.call$2(21, 245);
+      t3.call$3(b, "az", 21);
+      t3.call$3(b, "09", 21);
+      t2.call$3(b, "+-.", 21);
+      return tables;
+    },
+    _scan(uri, start, end, state, indices) {
+      var i, table, char, transition,
+        tables = $.$get$_scannerTables();
+      for (i = start; i < end; ++i) {
+        table = tables[state];
+        char = uri.charCodeAt(i) ^ 96;
+        transition = table[char > 95 ? 31 : char];
+        state = transition & 31;
+        indices[transition >>> 5] = i;
+      }
+      return state;
+    },
+    _SimpleUri__packageNameEnd(uri) {
+      if (uri._schemeEnd === 7 && B.JSString_methods.startsWith$1(uri._uri, "package") && uri._hostStart <= 0)
+        return A._skipPackageNameChars(uri._uri, uri._pathStart, uri._queryStart);
+      return -1;
+    },
+    _skipPackageNameChars(source, start, end) {
+      var i, dots, char;
+      for (i = start, dots = 0; i < end; ++i) {
+        char = source.charCodeAt(i);
+        if (char === 47)
+          return dots !== 0 ? i : -1;
+        if (char === 37 || char === 58)
+          return -1;
+        dots |= char ^ 46;
+      }
+      return -1;
+    },
+    _caseInsensitiveCompareStart(prefix, string, start) {
+      var t1, result, i, stringChar, delta, lowerChar;
+      for (t1 = prefix.length, result = 0, i = 0; i < t1; ++i) {
+        stringChar = string.charCodeAt(start + i);
+        delta = prefix.charCodeAt(i) ^ stringChar;
+        if (delta !== 0) {
+          if (delta === 32) {
+            lowerChar = stringChar | delta;
+            if (97 <= lowerChar && lowerChar <= 122) {
+              result = 32;
+              continue;
+            }
+          }
+          return -1;
+        }
+      }
+      return result;
+    },
+    NoSuchMethodError_toString_closure: function NoSuchMethodError_toString_closure(t0, t1) {
+      this._box_0 = t0;
+      this.sb = t1;
+    },
+    DateTime: function DateTime(t0, t1) {
+      this._value = t0;
+      this.isUtc = t1;
+    },
+    Duration: function Duration(t0) {
+      this._duration = t0;
+    },
+    _Enum: function _Enum() {
+    },
+    Error: function Error() {
+    },
+    AssertionError: function AssertionError(t0) {
+      this.message = t0;
+    },
+    TypeError: function TypeError() {
+    },
+    ArgumentError: function ArgumentError(t0, t1, t2, t3) {
+      var _ = this;
+      _._hasValue = t0;
+      _.invalidValue = t1;
+      _.name = t2;
+      _.message = t3;
+    },
+    RangeError: function RangeError(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.start = t0;
+      _.end = t1;
+      _._hasValue = t2;
+      _.invalidValue = t3;
+      _.name = t4;
+      _.message = t5;
+    },
+    IndexError: function IndexError(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.length = t0;
+      _._hasValue = t1;
+      _.invalidValue = t2;
+      _.name = t3;
+      _.message = t4;
+    },
+    NoSuchMethodError: function NoSuchMethodError(t0, t1, t2, t3) {
+      var _ = this;
+      _._core$_receiver = t0;
+      _._memberName = t1;
+      _._core$_arguments = t2;
+      _._namedArguments = t3;
+    },
+    UnsupportedError: function UnsupportedError(t0) {
+      this.message = t0;
+    },
+    UnimplementedError: function UnimplementedError(t0) {
+      this.message = t0;
+    },
+    StateError: function StateError(t0) {
+      this.message = t0;
+    },
+    ConcurrentModificationError: function ConcurrentModificationError(t0) {
+      this.modifiedObject = t0;
+    },
+    OutOfMemoryError: function OutOfMemoryError() {
+    },
+    StackOverflowError: function StackOverflowError() {
+    },
+    _Exception: function _Exception(t0) {
+      this.message = t0;
+    },
+    FormatException: function FormatException(t0, t1, t2) {
+      this.message = t0;
+      this.source = t1;
+      this.offset = t2;
+    },
+    Iterable: function Iterable() {
+    },
+    _GeneratorIterable: function _GeneratorIterable(t0, t1, t2) {
+      this.length = t0;
+      this._generator = t1;
+      this.$ti = t2;
+    },
+    MapEntry: function MapEntry(t0, t1, t2) {
+      this.key = t0;
+      this.value = t1;
+      this.$ti = t2;
+    },
+    Null: function Null() {
+    },
+    Object: function Object() {
+    },
+    _StringStackTrace: function _StringStackTrace(t0) {
+      this._stackTrace = t0;
+    },
+    Runes: function Runes(t0) {
+      this.string = t0;
+    },
+    RuneIterator: function RuneIterator(t0) {
+      var _ = this;
+      _.string = t0;
+      _._nextPosition = _._position = 0;
+      _._currentCodePoint = -1;
+    },
+    StringBuffer: function StringBuffer(t0) {
+      this._contents = t0;
+    },
+    Uri__parseIPv4Address_error: function Uri__parseIPv4Address_error(t0) {
+      this.host = t0;
+    },
+    Uri_parseIPv6Address_error: function Uri_parseIPv6Address_error(t0) {
+      this.host = t0;
+    },
+    Uri_parseIPv6Address_parseHex: function Uri_parseIPv6Address_parseHex(t0, t1) {
+      this.error = t0;
+      this.host = t1;
+    },
+    _Uri: function _Uri(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.scheme = t0;
+      _._userInfo = t1;
+      _._host = t2;
+      _._port = t3;
+      _.path = t4;
+      _._query = t5;
+      _._fragment = t6;
+      _.___Uri_hashCode_FI = _.___Uri_pathSegments_FI = _.___Uri__text_FI = $;
+    },
+    _Uri__makePath_closure: function _Uri__makePath_closure() {
+    },
+    UriData: function UriData(t0, t1, t2) {
+      this._text = t0;
+      this._separatorIndices = t1;
+      this._uriCache = t2;
+    },
+    _createTables_build: function _createTables_build(t0) {
+      this.tables = t0;
+    },
+    _createTables_setChars: function _createTables_setChars() {
+    },
+    _createTables_setRange: function _createTables_setRange() {
+    },
+    _SimpleUri: function _SimpleUri(t0, t1, t2, t3, t4, t5, t6, t7) {
+      var _ = this;
+      _._uri = t0;
+      _._schemeEnd = t1;
+      _._hostStart = t2;
+      _._portStart = t3;
+      _._pathStart = t4;
+      _._queryStart = t5;
+      _._fragmentStart = t6;
+      _._schemeCache = t7;
+      _._hashCodeCache = null;
+    },
+    _DataUri: function _DataUri(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.scheme = t0;
+      _._userInfo = t1;
+      _._host = t2;
+      _._port = t3;
+      _.path = t4;
+      _._query = t5;
+      _._fragment = t6;
+      _.___Uri_hashCode_FI = _.___Uri_pathSegments_FI = _.___Uri__text_FI = $;
+    },
+    Expando: function Expando(t0) {
+      this._jsWeakMap = t0;
+    },
+    _convertDartFunctionFast(f) {
+      var ret,
+        existing = f.$dart_jsFunction;
+      if (existing != null)
+        return existing;
+      ret = function(_call, f) {
+        return function() {
+          return _call(f, Array.prototype.slice.apply(arguments));
+        };
+      }(A._callDartFunctionFast, f);
+      ret[$.$get$DART_CLOSURE_PROPERTY_NAME()] = f;
+      f.$dart_jsFunction = ret;
+      return ret;
+    },
+    _convertDartFunctionFastCaptureThis(f) {
+      var ret,
+        existing = f._$dart_jsFunctionCaptureThis;
+      if (existing != null)
+        return existing;
+      ret = function(_call, f) {
+        return function() {
+          return _call(f, this, Array.prototype.slice.apply(arguments));
+        };
+      }(A._callDartFunctionFastCaptureThis, f);
+      ret[$.$get$DART_CLOSURE_PROPERTY_NAME()] = f;
+      f._$dart_jsFunctionCaptureThis = ret;
+      return ret;
+    },
+    _callDartFunctionFast(callback, $arguments) {
+      return A.Function_apply(callback, $arguments);
+    },
+    _callDartFunctionFastCaptureThis(callback, $self, $arguments) {
+      var t1 = [$self];
+      B.JSArray_methods.addAll$1(t1, $arguments);
+      return A.Function_apply(callback, t1);
+    },
+    allowInterop(f) {
+      if (typeof f == "function")
+        return f;
+      else
+        return A._convertDartFunctionFast(f);
+    },
+    allowInteropCaptureThis(f) {
+      if (typeof f == "function")
+        throw A.wrapException(A.ArgumentError$("Function is already a JS function so cannot capture this.", null));
+      else
+        return A._convertDartFunctionFastCaptureThis(f);
+    },
+    _noJsifyRequired(o) {
+      return o == null || A._isBool(o) || typeof o == "number" || typeof o == "string" || type$.Int8List._is(o) || type$.Uint8List._is(o) || type$.Uint8ClampedList._is(o) || type$.Int16List._is(o) || type$.Uint16List._is(o) || type$.Int32List._is(o) || type$.Uint32List._is(o) || type$.Float32List._is(o) || type$.Float64List._is(o) || type$.ByteBuffer._is(o) || type$.ByteData._is(o);
+    },
+    jsify(object) {
+      if (A._noJsifyRequired(object))
+        return object;
+      return new A.jsify__convert(new A._IdentityHashMap(type$._IdentityHashMap_of_nullable_Object_and_nullable_Object)).call$1(object);
+    },
+    callConstructor(constr, $arguments) {
+      var args, factoryFunction;
+      if ($arguments instanceof Array)
+        switch ($arguments.length) {
+          case 0:
+            return new constr();
+          case 1:
+            return new constr($arguments[0]);
+          case 2:
+            return new constr($arguments[0], $arguments[1]);
+          case 3:
+            return new constr($arguments[0], $arguments[1], $arguments[2]);
+          case 4:
+            return new constr($arguments[0], $arguments[1], $arguments[2], $arguments[3]);
+        }
+      args = [null];
+      B.JSArray_methods.addAll$1(args, $arguments);
+      factoryFunction = constr.bind.apply(constr, args);
+      String(factoryFunction);
+      return new factoryFunction();
+    },
+    promiseToFuture0(jsPromise, $T) {
+      var t1 = new A._Future($.Zone__current, $T._eval$1("_Future<0>")),
+        completer = new A._AsyncCompleter(t1, $T._eval$1("_AsyncCompleter<0>"));
+      jsPromise.then(A.convertDartClosureToJS(new A.promiseToFuture_closure1(completer), 1), A.convertDartClosureToJS(new A.promiseToFuture_closure2(completer), 1));
+      return t1;
+    },
+    jsify__convert: function jsify__convert(t0) {
+      this._convertedObjects = t0;
+    },
+    promiseToFuture_closure1: function promiseToFuture_closure1(t0) {
+      this.completer = t0;
+    },
+    promiseToFuture_closure2: function promiseToFuture_closure2(t0) {
+      this.completer = t0;
+    },
+    NullRejectionException: function NullRejectionException(t0) {
+      this.isUndefined = t0;
+    },
+    max(a, b) {
+      return Math.max(a, b);
+    },
+    pow(x, exponent) {
+      return Math.pow(x, exponent);
+    },
+    Random_Random() {
+      return B.C__JSRandom;
+    },
+    _JSRandom: function _JSRandom() {
+    },
+    ArgParser: function ArgParser(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._arg_parser$_options = t0;
+      _._aliases = t1;
+      _.options = t2;
+      _.commands = t3;
+      _._optionsAndSeparators = t4;
+      _.allowTrailingOptions = t5;
+      _.usageLineLength = t6;
+    },
+    ArgParser__addOption_closure: function ArgParser__addOption_closure(t0) {
+      this.$this = t0;
+    },
+    ArgParserException$(message, commands) {
+      return new A.ArgParserException(commands == null ? B.List_empty : A.List_List$unmodifiable(commands, type$.String), message, null, null);
+    },
+    ArgParserException: function ArgParserException(t0, t1, t2, t3) {
+      var _ = this;
+      _.commands = t0;
+      _.message = t1;
+      _.source = t2;
+      _.offset = t3;
+    },
+    ArgResults: function ArgResults(t0, t1, t2, t3) {
+      var _ = this;
+      _._parser = t0;
+      _._parsed = t1;
+      _.name = t2;
+      _.rest = t3;
+    },
+    Option: function Option(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12) {
+      var _ = this;
+      _.name = t0;
+      _.abbr = t1;
+      _.help = t2;
+      _.valueHelp = t3;
+      _.allowed = t4;
+      _.allowedHelp = t5;
+      _.defaultsTo = t6;
+      _.negatable = t7;
+      _.callback = t8;
+      _.type = t9;
+      _.splitCommas = t10;
+      _.mandatory = t11;
+      _.hide = t12;
+    },
+    OptionType: function OptionType(t0) {
+      this.name = t0;
+    },
+    Parser$(_commandName, _grammar, _args, _parent, rest) {
+      var t1 = A._setArrayType([], type$.JSArray_String);
+      if (rest != null)
+        B.JSArray_methods.addAll$1(t1, rest);
+      return new A.Parser0(_commandName, _parent, _grammar, _args, t1, A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.dynamic));
+    },
+    _isLetterOrDigit(codeUnit) {
+      var t1;
+      if (!(codeUnit >= 65 && codeUnit <= 90))
+        if (!(codeUnit >= 97 && codeUnit <= 122))
+          t1 = codeUnit >= 48 && codeUnit <= 57;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    Parser0: function Parser0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._commandName = t0;
+      _._parser$_parent = t1;
+      _._grammar = t2;
+      _._args = t3;
+      _._parser$_rest = t4;
+      _._results = t5;
+    },
+    Parser_parse_closure: function Parser_parse_closure(t0) {
+      this.$this = t0;
+    },
+    Parser__setOption_closure: function Parser__setOption_closure() {
+    },
+    _Usage: function _Usage(t0, t1, t2) {
+      var _ = this;
+      _._usage$_optionsAndSeparators = t0;
+      _._usage$_buffer = t1;
+      _._currentColumn = 0;
+      _.___Usage__columnWidths_FI = $;
+      _._newlinesNeeded = 0;
+      _.lineLength = t2;
+    },
+    _Usage__writeOption_closure: function _Usage__writeOption_closure() {
+    },
+    _Usage__buildAllowedList_closure: function _Usage__buildAllowedList_closure(t0) {
+      this.option = t0;
+    },
+    FutureGroup: function FutureGroup(t0, t1, t2) {
+      var _ = this;
+      _._future_group$_pending = 0;
+      _._future_group$_closed = false;
+      _._future_group$_completer = t0;
+      _._future_group$_values = t1;
+      _.$ti = t2;
+    },
+    FutureGroup_add_closure: function FutureGroup_add_closure(t0, t1) {
+      this.$this = t0;
+      this.index = t1;
+    },
+    FutureGroup_add_closure0: function FutureGroup_add_closure0(t0) {
+      this.$this = t0;
+    },
+    ErrorResult: function ErrorResult(t0, t1) {
+      this.error = t0;
+      this.stackTrace = t1;
+    },
+    ValueResult: function ValueResult(t0, t1) {
+      this.value = t0;
+      this.$ti = t1;
+    },
+    StreamCompleter: function StreamCompleter(t0, t1) {
+      this._stream_completer$_stream = t0;
+      this.$ti = t1;
+    },
+    _CompleterStream: function _CompleterStream(t0) {
+      this._sourceStream = this._stream_completer$_controller = null;
+      this.$ti = t0;
+    },
+    StreamGroup: function StreamGroup(t0, t1, t2) {
+      var _ = this;
+      _.__StreamGroup__controller_A = $;
+      _._closed = false;
+      _._stream_group$_state = t0;
+      _._subscriptions = t1;
+      _.$ti = t2;
+    },
+    StreamGroup_add_closure: function StreamGroup_add_closure() {
+    },
+    StreamGroup_add_closure0: function StreamGroup_add_closure0(t0, t1) {
+      this.$this = t0;
+      this.stream = t1;
+    },
+    StreamGroup__onListen_closure: function StreamGroup__onListen_closure() {
+    },
+    StreamGroup__onCancel_closure: function StreamGroup__onCancel_closure(t0) {
+      this.$this = t0;
+    },
+    StreamGroup__listenToStream_closure: function StreamGroup__listenToStream_closure(t0, t1) {
+      this.$this = t0;
+      this.stream = t1;
+    },
+    _StreamGroupState: function _StreamGroupState(t0) {
+      this.name = t0;
+    },
+    StreamQueue: function StreamQueue(t0, t1, t2, t3) {
+      var _ = this;
+      _._stream_queue$_source = t0;
+      _._stream_queue$_subscription = null;
+      _._isDone = false;
+      _._eventsReceived = 0;
+      _._eventQueue = t1;
+      _._requestQueue = t2;
+      _.$ti = t3;
+    },
+    StreamQueue__ensureListening_closure: function StreamQueue__ensureListening_closure(t0) {
+      this.$this = t0;
+    },
+    StreamQueue__ensureListening_closure1: function StreamQueue__ensureListening_closure1(t0) {
+      this.$this = t0;
+    },
+    StreamQueue__ensureListening_closure0: function StreamQueue__ensureListening_closure0(t0) {
+      this.$this = t0;
+    },
+    _NextRequest: function _NextRequest(t0, t1) {
+      this._completer = t0;
+      this.$ti = t1;
+    },
+    isNodeJs() {
+      var t1 = self.process;
+      if (t1 == null)
+        t1 = null;
+      else {
+        t1 = J.get$release$x(t1);
+        t1 = t1 == null ? null : J.get$name$x(t1);
+      }
+      return J.$eq$(t1, "node");
+    },
+    isBrowser() {
+      return !A.isNodeJs() && self.document != null && typeof self.document.querySelector == "function";
+    },
+    wrapJSExceptions(callback) {
+      var error, error0, error1, error2, t1, exception;
+      if (!$.$get$_isStrictMode())
+        return callback.call$0();
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (typeof t1 == "string") {
+          error = t1;
+          throw A.wrapException(error);
+        } else if (A._isBool(t1)) {
+          error0 = t1;
+          throw A.wrapException(error0);
+        } else if (typeof t1 == "number") {
+          error1 = t1;
+          throw A.wrapException(error1);
+        } else {
+          error2 = t1;
+          if (typeof error2 == "symbol" || typeof error2 == "bigint" || error2 == null)
+            throw A.wrapException(error2.toString());
+          throw exception;
+        }
+      }
+    },
+    _isStrictMode_closure: function _isStrictMode_closure() {
+    },
+    Repl: function Repl(t0, t1, t2, t3) {
+      var _ = this;
+      _.prompt = t0;
+      _.continuation = t1;
+      _.validator = t2;
+      _.__Repl__adapter_A = $;
+      _.history = t3;
+    },
+    alwaysValid_closure: function alwaysValid_closure() {
+    },
+    ReplAdapter: function ReplAdapter(t0) {
+      this.repl = t0;
+      this.rl = null;
+    },
+    ReplAdapter_runAsync_closure: function ReplAdapter_runAsync_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.rl = t2;
+      _.runController = t3;
+    },
+    ReplAdapter_runAsync__closure: function ReplAdapter_runAsync__closure(t0) {
+      this.lineController = t0;
+    },
+    Stdin: function Stdin() {
+    },
+    Stdout: function Stdout() {
+    },
+    ReadlineModule: function ReadlineModule() {
+    },
+    ReadlineOptions: function ReadlineOptions() {
+    },
+    ReadlineInterface: function ReadlineInterface() {
+    },
+    EmptyUnmodifiableSet: function EmptyUnmodifiableSet(t0) {
+      this.$ti = t0;
+    },
+    _EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin: function _EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin() {
+    },
+    DefaultEquality: function DefaultEquality() {
+    },
+    IterableEquality: function IterableEquality() {
+    },
+    ListEquality: function ListEquality() {
+    },
+    _MapEntry: function _MapEntry(t0, t1, t2) {
+      this.equality = t0;
+      this.key = t1;
+      this.value = t2;
+    },
+    MapEquality: function MapEquality(t0) {
+      this.$ti = t0;
+    },
+    QueueList$(initialCapacity, $E) {
+      return new A.QueueList(A.List_List$filled(A.QueueList__computeInitialCapacity(initialCapacity), null, false, $E._eval$1("0?")), 0, 0, $E._eval$1("QueueList<0>"));
+    },
+    QueueList_QueueList$from(source, $E) {
+      var $length, queue, t1;
+      if (type$.List_dynamic._is(source)) {
+        $length = J.get$length$asx(source);
+        queue = A.QueueList$($length + 1, $E);
+        J.setRange$4$ax(queue._queue_list$_table, 0, $length, source, 0);
+        queue._queue_list$_tail = $length;
+        return queue;
+      } else {
+        t1 = A.QueueList$(null, $E);
+        t1.addAll$1(0, source);
+        return t1;
+      }
+    },
+    QueueList__computeInitialCapacity(initialCapacity) {
+      if (initialCapacity == null || initialCapacity < 8)
+        return 8;
+      ++initialCapacity;
+      if ((initialCapacity & initialCapacity - 1) >>> 0 === 0)
+        return initialCapacity;
+      return A.QueueList__nextPowerOf2(initialCapacity);
+    },
+    QueueList__nextPowerOf2(number) {
+      var nextNumber;
+      number = (number << 1 >>> 0) - 1;
+      for (; true; number = nextNumber) {
+        nextNumber = (number & number - 1) >>> 0;
+        if (nextNumber === 0)
+          return number;
+      }
+    },
+    QueueList: function QueueList(t0, t1, t2, t3) {
+      var _ = this;
+      _._queue_list$_table = t0;
+      _._queue_list$_head = t1;
+      _._queue_list$_tail = t2;
+      _.$ti = t3;
+    },
+    _CastQueueList: function _CastQueueList(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._queue_list$_delegate = t0;
+      _._queue_list$_table = t1;
+      _._queue_list$_head = t2;
+      _._queue_list$_tail = t3;
+      _.$ti = t4;
+    },
+    _QueueList_Object_ListMixin: function _QueueList_Object_ListMixin() {
+    },
+    UnionSet: function UnionSet(t0, t1) {
+      this._sets = t0;
+      this.$ti = t1;
+    },
+    UnionSet__iterable_closure: function UnionSet__iterable_closure(t0) {
+      this.$this = t0;
+    },
+    UnionSet_contains_closure: function UnionSet_contains_closure(t0, t1) {
+      this.$this = t0;
+      this.element = t1;
+    },
+    _UnionSet_SetBase_UnmodifiableSetMixin: function _UnionSet_SetBase_UnmodifiableSetMixin() {
+    },
+    UnmodifiableSetMixin__throw() {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify an unmodifiable Set"));
+    },
+    UnmodifiableSetView0: function UnmodifiableSetView0(t0, t1) {
+      this._base = t0;
+      this.$ti = t1;
+    },
+    UnmodifiableSetMixin: function UnmodifiableSetMixin() {
+    },
+    _UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin: function _UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin() {
+    },
+    _DelegatingIterableBase: function _DelegatingIterableBase() {
+    },
+    DelegatingSet: function DelegatingSet(t0, t1) {
+      this._base = t0;
+      this.$ti = t1;
+    },
+    MapKeySet: function MapKeySet(t0, t1) {
+      this._baseMap = t0;
+      this.$ti = t1;
+    },
+    MapKeySet_difference_closure: function MapKeySet_difference_closure(t0, t1) {
+      this.$this = t0;
+      this.other = t1;
+    },
+    _MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin: function _MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin() {
+    },
+    BufferModule: function BufferModule() {
+    },
+    BufferConstants: function BufferConstants() {
+    },
+    Buffer: function Buffer() {
+    },
+    ConsoleModule: function ConsoleModule() {
+    },
+    Console: function Console() {
+    },
+    EventEmitter: function EventEmitter() {
+    },
+    fs() {
+      var t1 = $._fs;
+      return t1 == null ? $._fs = self.fs : t1;
+    },
+    FS: function FS() {
+    },
+    FSConstants: function FSConstants() {
+    },
+    FSWatcher: function FSWatcher() {
+    },
+    ReadStream: function ReadStream() {
+    },
+    ReadStreamOptions: function ReadStreamOptions() {
+    },
+    WriteStream: function WriteStream() {
+    },
+    WriteStreamOptions: function WriteStreamOptions() {
+    },
+    FileOptions: function FileOptions() {
+    },
+    StatOptions: function StatOptions() {
+    },
+    MkdirOptions: function MkdirOptions() {
+    },
+    RmdirOptions: function RmdirOptions() {
+    },
+    WatchOptions: function WatchOptions() {
+    },
+    WatchFileOptions: function WatchFileOptions() {
+    },
+    Stats: function Stats() {
+    },
+    Promise: function Promise() {
+    },
+    Date: function Date() {
+    },
+    JsError: function JsError() {
+    },
+    Atomics: function Atomics() {
+    },
+    Modules: function Modules() {
+    },
+    Module: function Module() {
+    },
+    Net: function Net() {
+    },
+    Socket: function Socket() {
+    },
+    NetAddress: function NetAddress() {
+    },
+    NetServer: function NetServer() {
+    },
+    NodeJsError: function NodeJsError() {
+    },
+    JsAssertionError: function JsAssertionError() {
+    },
+    JsRangeError: function JsRangeError() {
+    },
+    JsReferenceError: function JsReferenceError() {
+    },
+    JsSyntaxError: function JsSyntaxError() {
+    },
+    JsTypeError: function JsTypeError() {
+    },
+    JsSystemError: function JsSystemError() {
+    },
+    Process: function Process() {
+    },
+    CPUUsage: function CPUUsage() {
+    },
+    Release: function Release() {
+    },
+    StreamModule: function StreamModule() {
+    },
+    Readable: function Readable() {
+    },
+    Writable: function Writable() {
+    },
+    Duplex: function Duplex() {
+    },
+    Transform: function Transform() {
+    },
+    WritableOptions: function WritableOptions() {
+    },
+    ReadableOptions: function ReadableOptions() {
+    },
+    Immediate: function Immediate() {
+    },
+    Timeout: function Timeout() {
+    },
+    TTY: function TTY() {
+    },
+    TTYReadStream: function TTYReadStream() {
+    },
+    TTYWriteStream: function TTYWriteStream() {
+    },
+    jsify0(dartObject) {
+      if (A._isBasicType(dartObject))
+        return dartObject;
+      return A.jsify(dartObject);
+    },
+    _isBasicType(value) {
+      return false;
+    },
+    promiseToFuture(promise, $T) {
+      var t1 = new A._Future($.Zone__current, $T._eval$1("_Future<0>")),
+        completer = new A._SyncCompleter(t1, $T._eval$1("_SyncCompleter<0>"));
+      J.then$2$x(promise, A.allowInterop(new A.promiseToFuture_closure(completer)), A.allowInterop(new A.promiseToFuture_closure0(completer)));
+      return t1;
+    },
+    futureToPromise(future, $T) {
+      return new self.Promise(A.allowInterop(new A.futureToPromise_closure(future, $T)));
+    },
+    Util: function Util() {
+    },
+    promiseToFuture_closure: function promiseToFuture_closure(t0) {
+      this.completer = t0;
+    },
+    promiseToFuture_closure0: function promiseToFuture_closure0(t0) {
+      this.completer = t0;
+    },
+    futureToPromise_closure: function futureToPromise_closure(t0, t1) {
+      this.future = t0;
+      this.T = t1;
+    },
+    futureToPromise__closure: function futureToPromise__closure(t0, t1) {
+      this.resolve = t0;
+      this.T = t1;
+    },
+    Context_Context(style) {
+      return new A.Context(style, ".");
+    },
+    _parseUri(uri) {
+      if (typeof uri == "string")
+        return A.Uri_parse(uri);
+      if (type$.Uri._is(uri))
+        return uri;
+      throw A.wrapException(A.ArgumentError$value(uri, "uri", "Value must be a String or a Uri"));
+    },
+    _validateArgList(method, args) {
+      var numArgs, i, numArgs0, message, t1, t2, t3, t4;
+      for (numArgs = args.length, i = 1; i < numArgs; ++i) {
+        if (args[i] == null || args[i - 1] != null)
+          continue;
+        for (; numArgs >= 1; numArgs = numArgs0) {
+          numArgs0 = numArgs - 1;
+          if (args[numArgs0] != null)
+            break;
+        }
+        message = new A.StringBuffer("");
+        t1 = "" + (method + "(");
+        message._contents = t1;
+        t2 = A._arrayInstanceType(args);
+        t3 = t2._eval$1("SubListIterable<1>");
+        t4 = new A.SubListIterable(args, 0, numArgs, t3);
+        t4.SubListIterable$3(args, 0, numArgs, t2._precomputed1);
+        t3 = t1 + new A.MappedListIterable(t4, new A._validateArgList_closure(), t3._eval$1("MappedListIterable<ListIterable.E,String>")).join$1(0, ", ");
+        message._contents = t3;
+        message._contents = t3 + ("): part " + (i - 1) + " was null, but part " + i + " was not.");
+        throw A.wrapException(A.ArgumentError$(message.toString$0(0), null));
+      }
+    },
+    Context: function Context(t0, t1) {
+      this.style = t0;
+      this._context$_current = t1;
+    },
+    Context_joinAll_closure: function Context_joinAll_closure() {
+    },
+    Context_split_closure: function Context_split_closure() {
+    },
+    _validateArgList_closure: function _validateArgList_closure() {
+    },
+    _PathDirection: function _PathDirection(t0) {
+      this.name = t0;
+    },
+    _PathRelation: function _PathRelation(t0) {
+      this.name = t0;
+    },
+    InternalStyle: function InternalStyle() {
+    },
+    ParsedPath_ParsedPath$parse(path, style) {
+      var t1, parts, separators, start, i,
+        root = style.getRoot$1(path),
+        isRootRelative = style.isRootRelative$1(path);
+      if (root != null)
+        path = B.JSString_methods.substring$1(path, root.length);
+      t1 = type$.JSArray_String;
+      parts = A._setArrayType([], t1);
+      separators = A._setArrayType([], t1);
+      t1 = path.length;
+      if (t1 !== 0 && style.isSeparator$1(path.charCodeAt(0))) {
+        separators.push(path[0]);
+        start = 1;
+      } else {
+        separators.push("");
+        start = 0;
+      }
+      for (i = start; i < t1; ++i)
+        if (style.isSeparator$1(path.charCodeAt(i))) {
+          parts.push(B.JSString_methods.substring$2(path, start, i));
+          separators.push(path[i]);
+          start = i + 1;
+        }
+      if (start < t1) {
+        parts.push(B.JSString_methods.substring$1(path, start));
+        separators.push("");
+      }
+      return new A.ParsedPath(style, root, isRootRelative, parts, separators);
+    },
+    ParsedPath: function ParsedPath(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.style = t0;
+      _.root = t1;
+      _.isRootRelative = t2;
+      _.parts = t3;
+      _.separators = t4;
+    },
+    ParsedPath__splitExtension_closure: function ParsedPath__splitExtension_closure() {
+    },
+    ParsedPath__splitExtension_closure0: function ParsedPath__splitExtension_closure0() {
+    },
+    PathException$(message) {
+      return new A.PathException(message);
+    },
+    PathException: function PathException(t0) {
+      this.message = t0;
+    },
+    PathMap__create(context, $V) {
+      var t1 = {};
+      t1.context = context;
+      t1.context = $.$get$context();
+      return A.LinkedHashMap_LinkedHashMap(new A.PathMap__create_closure(t1), new A.PathMap__create_closure0(t1), new A.PathMap__create_closure1(), type$.nullable_String, $V);
+    },
+    PathMap: function PathMap(t0, t1) {
+      this._map = t0;
+      this.$ti = t1;
+    },
+    PathMap__create_closure: function PathMap__create_closure(t0) {
+      this._box_0 = t0;
+    },
+    PathMap__create_closure0: function PathMap__create_closure0(t0) {
+      this._box_0 = t0;
+    },
+    PathMap__create_closure1: function PathMap__create_closure1() {
+    },
+    Style__getPlatformStyle() {
+      if (A.Uri_base().get$scheme() !== "file")
+        return $.$get$Style_url();
+      var t1 = A.Uri_base();
+      if (!B.JSString_methods.endsWith$1(t1.get$path(t1), "/"))
+        return $.$get$Style_url();
+      if (A._Uri__Uri(null, "a/b", null, null).toFilePath$0() === "a\\b")
+        return $.$get$Style_windows();
+      return $.$get$Style_posix();
+    },
+    Style: function Style() {
+    },
+    PosixStyle: function PosixStyle(t0, t1, t2) {
+      this.separatorPattern = t0;
+      this.needsSeparatorPattern = t1;
+      this.rootPattern = t2;
+    },
+    UrlStyle: function UrlStyle(t0, t1, t2, t3) {
+      var _ = this;
+      _.separatorPattern = t0;
+      _.needsSeparatorPattern = t1;
+      _.rootPattern = t2;
+      _.relativeRootPattern = t3;
+    },
+    WindowsStyle: function WindowsStyle(t0, t1, t2, t3) {
+      var _ = this;
+      _.separatorPattern = t0;
+      _.needsSeparatorPattern = t1;
+      _.rootPattern = t2;
+      _.relativeRootPattern = t3;
+    },
+    WindowsStyle_absolutePathToUri_closure: function WindowsStyle_absolutePathToUri_closure() {
+    },
+    Version$_(major, minor, patch, preRelease, build, _text) {
+      var t1 = preRelease == null ? A._setArrayType([], type$.JSArray_Object) : A.Version__splitParts(preRelease),
+        t2 = build == null ? A._setArrayType([], type$.JSArray_Object) : A.Version__splitParts(build);
+      if (major < 0)
+        A.throwExpression(A.ArgumentError$("Major version must be non-negative.", null));
+      if (minor < 0)
+        A.throwExpression(A.ArgumentError$("Minor version must be non-negative.", null));
+      if (patch < 0)
+        A.throwExpression(A.ArgumentError$("Patch version must be non-negative.", null));
+      return new A.Version(major, minor, patch, t1, t2, _text);
+    },
+    Version_Version(major, minor, patch, pre) {
+      var text = "" + major + "." + minor + "." + patch;
+      if (pre != null)
+        text += "-" + pre;
+      return A.Version$_(major, minor, patch, pre, null, text);
+    },
+    Version___parse_tearOff(text) {
+      return A.Version_Version$parse(text);
+    },
+    Version_Version$parse(text) {
+      var major, minor, patch, preRelease, build, t1, exception, _null = null,
+        _s17_ = 'Could not parse "',
+        match = $.$get$completeVersion().firstMatch$1(text);
+      if (match == null)
+        throw A.wrapException(A.FormatException$(_s17_ + text + '".', _null, _null));
+      try {
+        t1 = match._match[1];
+        t1.toString;
+        major = A.int_parse(t1, _null);
+        t1 = match._match[2];
+        t1.toString;
+        minor = A.int_parse(t1, _null);
+        t1 = match._match[3];
+        t1.toString;
+        patch = A.int_parse(t1, _null);
+        preRelease = match._match[5];
+        build = match._match[8];
+        t1 = A.Version$_(major, minor, patch, preRelease, build, text);
+        return t1;
+      } catch (exception) {
+        if (type$.FormatException._is(A.unwrapException(exception)))
+          throw A.wrapException(A.FormatException$(_s17_ + text + '".', _null, _null));
+        else
+          throw exception;
+      }
+    },
+    Version__splitParts(text) {
+      var t1 = type$.MappedListIterable_String_Object;
+      return A.List_List$of(new A.MappedListIterable(A._setArrayType(text.split("."), type$.JSArray_String), new A.Version__splitParts_closure(), t1), true, t1._eval$1("ListIterable.E"));
+    },
+    Version: function Version(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.major = t0;
+      _.minor = t1;
+      _.patch = t2;
+      _.preRelease = t3;
+      _.build = t4;
+      _._version$_text = t5;
+    },
+    Version__splitParts_closure: function Version__splitParts_closure() {
+    },
+    VersionRange_VersionRange(includeMax, max) {
+      return new A.VersionRange(null, max, false, true);
+    },
+    VersionRange: function VersionRange(t0, t1, t2, t3) {
+      var _ = this;
+      _.min = t0;
+      _.max = t1;
+      _.includeMin = t2;
+      _.includeMax = t3;
+    },
+    CssMediaQuery_parseList(contents, interpolationMap, logger) {
+      var t1 = A.SpanScanner$(contents, null);
+      return new A.MediaQueryParser(t1, logger, interpolationMap).parse$0();
+    },
+    CssMediaQuery$type(type, conditions, modifier) {
+      return new A.CssMediaQuery(modifier, type, true, conditions == null ? B.List_empty : A.List_List$unmodifiable(conditions, type$.String));
+    },
+    CssMediaQuery$condition(conditions, conjunction) {
+      var t1 = A.List_List$unmodifiable(conditions, type$.String);
+      if (t1.length > 1 && conjunction == null)
+        A.throwExpression(A.ArgumentError$(string$.If_con, null));
+      return new A.CssMediaQuery(null, null, conjunction !== false, t1);
+    },
+    CssMediaQuery: function CssMediaQuery(t0, t1, t2, t3) {
+      var _ = this;
+      _.modifier = t0;
+      _.type = t1;
+      _.conjunction = t2;
+      _.conditions = t3;
+    },
+    _SingletonCssMediaQueryMergeResult: function _SingletonCssMediaQueryMergeResult(t0) {
+      this._name = t0;
+    },
+    MediaQuerySuccessfulMergeResult: function MediaQuerySuccessfulMergeResult(t0) {
+      this.query = t0;
+    },
+    ModifiableCssAtRule$($name, span, childless, value) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      return new A.ModifiableCssAtRule($name, value, childless, span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode), t1);
+    },
+    ModifiableCssAtRule: function ModifiableCssAtRule(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.isChildless = t2;
+      _.span = t3;
+      _.children = t4;
+      _._children = t5;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssComment: function ModifiableCssComment(t0, t1) {
+      var _ = this;
+      _.text = t0;
+      _.span = t1;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssDeclaration$($name, value, span, parsedAsCustomProperty, valueSpanForMap) {
+      var t2,
+        t1 = valueSpanForMap == null ? value.span : valueSpanForMap;
+      if (parsedAsCustomProperty)
+        if (!J.startsWith$1$s($name.value, "--"))
+          A.throwExpression(A.ArgumentError$(string$.parsed, null));
+        else {
+          t2 = value.value;
+          if (!(t2 instanceof A.SassString))
+            A.throwExpression(A.ArgumentError$(string$.If_par + value.toString$0(0) + "` of type " + A.getRuntimeTypeOfDartObject(t2).toString$0(0) + ").", null));
+        }
+      return new A.ModifiableCssDeclaration($name, value, parsedAsCustomProperty, t1, span);
+    },
+    ModifiableCssDeclaration: function ModifiableCssDeclaration(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.parsedAsCustomProperty = t2;
+      _.valueSpanForMap = t3;
+      _.span = t4;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssImport: function ModifiableCssImport(t0, t1, t2) {
+      var _ = this;
+      _.url = t0;
+      _.modifiers = t1;
+      _.span = t2;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssKeyframeBlock$(selector, span) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      return new A.ModifiableCssKeyframeBlock(selector, span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode), t1);
+    },
+    ModifiableCssKeyframeBlock: function ModifiableCssKeyframeBlock(t0, t1, t2, t3) {
+      var _ = this;
+      _.selector = t0;
+      _.span = t1;
+      _.children = t2;
+      _._children = t3;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssMediaRule$(queries, span) {
+      var t1 = A.List_List$unmodifiable(queries, type$.CssMediaQuery),
+        t2 = A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      if (J.get$isEmpty$asx(queries))
+        A.throwExpression(A.ArgumentError$value(queries, "queries", "may not be empty."));
+      return new A.ModifiableCssMediaRule(t1, span, new A.UnmodifiableListView(t2, type$.UnmodifiableListView_ModifiableCssNode), t2);
+    },
+    ModifiableCssMediaRule: function ModifiableCssMediaRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.queries = t0;
+      _.span = t1;
+      _.children = t2;
+      _._children = t3;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssNode: function ModifiableCssNode() {
+    },
+    ModifiableCssNode_hasFollowingSibling_closure: function ModifiableCssNode_hasFollowingSibling_closure() {
+    },
+    ModifiableCssParentNode: function ModifiableCssParentNode() {
+    },
+    ModifiableCssStyleRule$(_selector, span, fromPlainCss, originalSelector) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      return new A.ModifiableCssStyleRule(_selector, originalSelector, span, fromPlainCss, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode), t1);
+    },
+    ModifiableCssStyleRule: function ModifiableCssStyleRule(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._style_rule$_selector = t0;
+      _.originalSelector = t1;
+      _.span = t2;
+      _.fromPlainCss = t3;
+      _.children = t4;
+      _._children = t5;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssStylesheet$(span) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      return new A.ModifiableCssStylesheet(span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode), t1);
+    },
+    ModifiableCssStylesheet: function ModifiableCssStylesheet(t0, t1, t2) {
+      var _ = this;
+      _.span = t0;
+      _.children = t1;
+      _._children = t2;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    ModifiableCssSupportsRule$(condition, span) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      return new A.ModifiableCssSupportsRule(condition, span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode), t1);
+    },
+    ModifiableCssSupportsRule: function ModifiableCssSupportsRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.condition = t0;
+      _.span = t1;
+      _.children = t2;
+      _._children = t3;
+      _._indexInParent = _._parent = null;
+      _.isGroupEnd = false;
+    },
+    CssNode: function CssNode() {
+    },
+    CssParentNode: function CssParentNode() {
+    },
+    _IsInvisibleVisitor: function _IsInvisibleVisitor(t0, t1) {
+      this.includeBogus = t0;
+      this.includeComments = t1;
+    },
+    __IsInvisibleVisitor_Object_EveryCssVisitor: function __IsInvisibleVisitor_Object_EveryCssVisitor() {
+    },
+    CssStylesheet: function CssStylesheet(t0, t1) {
+      this.children = t0;
+      this.span = t1;
+    },
+    CssValue: function CssValue(t0, t1, t2) {
+      this.value = t0;
+      this.span = t1;
+      this.$ti = t2;
+    },
+    _FakeAstNode: function _FakeAstNode(t0) {
+      this._callback = t0;
+    },
+    Argument: function Argument(t0, t1, t2) {
+      this.name = t0;
+      this.defaultValue = t1;
+      this.span = t2;
+    },
+    ArgumentDeclaration_ArgumentDeclaration$parse(contents, url) {
+      return A.ScssParser$(contents, null, url).parseArgumentDeclaration$0();
+    },
+    ArgumentDeclaration: function ArgumentDeclaration(t0, t1, t2) {
+      this.$arguments = t0;
+      this.restArgument = t1;
+      this.span = t2;
+    },
+    ArgumentDeclaration_verify_closure: function ArgumentDeclaration_verify_closure() {
+    },
+    ArgumentDeclaration_verify_closure0: function ArgumentDeclaration_verify_closure0() {
+    },
+    ArgumentInvocation$empty(span) {
+      return new A.ArgumentInvocation(B.List_empty9, B.Map_empty6, null, null, span);
+    },
+    ArgumentInvocation: function ArgumentInvocation(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.positional = t0;
+      _.named = t1;
+      _.rest = t2;
+      _.keywordRest = t3;
+      _.span = t4;
+    },
+    AtRootQuery: function AtRootQuery(t0, t1, t2, t3) {
+      var _ = this;
+      _.include = t0;
+      _.names = t1;
+      _._all = t2;
+      _._at_root_query$_rule = t3;
+    },
+    ConfiguredVariable: function ConfiguredVariable(t0, t1, t2, t3) {
+      var _ = this;
+      _.name = t0;
+      _.expression = t1;
+      _.isGuarded = t2;
+      _.span = t3;
+    },
+    _IsCalculationSafeVisitor: function _IsCalculationSafeVisitor() {
+    },
+    _IsCalculationSafeVisitor_visitListExpression_closure: function _IsCalculationSafeVisitor_visitListExpression_closure(t0) {
+      this.$this = t0;
+    },
+    BinaryOperationExpression: function BinaryOperationExpression(t0, t1, t2, t3) {
+      var _ = this;
+      _.operator = t0;
+      _.left = t1;
+      _.right = t2;
+      _.allowsSlash = t3;
+    },
+    BinaryOperator: function BinaryOperator(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.operator = t1;
+      _.precedence = t2;
+      _.isAssociative = t3;
+      _._name = t4;
+    },
+    BooleanExpression: function BooleanExpression(t0, t1) {
+      this.value = t0;
+      this.span = t1;
+    },
+    ColorExpression: function ColorExpression(t0, t1) {
+      this.value = t0;
+      this.span = t1;
+    },
+    FunctionExpression: function FunctionExpression(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.namespace = t0;
+      _.name = t1;
+      _.originalName = t2;
+      _.$arguments = t3;
+      _.span = t4;
+    },
+    IfExpression: function IfExpression(t0, t1) {
+      this.$arguments = t0;
+      this.span = t1;
+    },
+    InterpolatedFunctionExpression: function InterpolatedFunctionExpression(t0, t1, t2) {
+      this.name = t0;
+      this.$arguments = t1;
+      this.span = t2;
+    },
+    ListExpression: function ListExpression(t0, t1, t2, t3) {
+      var _ = this;
+      _.contents = t0;
+      _.separator = t1;
+      _.hasBrackets = t2;
+      _.span = t3;
+    },
+    ListExpression_toString_closure: function ListExpression_toString_closure(t0) {
+      this.$this = t0;
+    },
+    MapExpression: function MapExpression(t0, t1) {
+      this.pairs = t0;
+      this.span = t1;
+    },
+    NullExpression: function NullExpression(t0) {
+      this.span = t0;
+    },
+    NumberExpression: function NumberExpression(t0, t1, t2) {
+      this.value = t0;
+      this.unit = t1;
+      this.span = t2;
+    },
+    ParenthesizedExpression: function ParenthesizedExpression(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    SelectorExpression: function SelectorExpression(t0) {
+      this.span = t0;
+    },
+    StringExpression_quoteText(text) {
+      var t1,
+        quote = A.StringExpression__bestQuote(A._setArrayType([text], type$.JSArray_String)),
+        buffer = new A.StringBuffer("");
+      buffer._contents = "" + A.Primitives_stringFromCharCode(quote);
+      A.StringExpression__quoteInnerText(text, quote, buffer, true);
+      t1 = A.Primitives_stringFromCharCode(quote);
+      t1 = buffer._contents += t1;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    StringExpression__quoteInnerText(text, quote, buffer, $static) {
+      var t1, t2, i, _1_0, _0_0, t3, t4, t0;
+      for (t1 = text.length, t2 = t1 - 1, i = 0; i < t1; ++i) {
+        _1_0 = text.charCodeAt(i);
+        if (_1_0 === 10 || _1_0 === 13 || _1_0 === 12) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(97);
+          if (i !== t2) {
+            _0_0 = text.charCodeAt(i + 1);
+            if (!(_0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12))
+              if (!(_0_0 >= 48 && _0_0 <= 57))
+                if (!(_0_0 >= 97 && _0_0 <= 102))
+                  t3 = _0_0 >= 65 && _0_0 <= 70;
+                else
+                  t3 = true;
+              else
+                t3 = true;
+            else
+              t3 = true;
+            if (t3)
+              buffer.writeCharCode$1(32);
+          }
+          continue;
+        }
+        t3 = 92 === _1_0;
+        if (t3)
+          t4 = _1_0;
+        else
+          t4 = null;
+        if (!t3) {
+          t3 = _1_0 === quote;
+          if (t3)
+            t4 = _1_0;
+          t0 = t4;
+          t4 = t3;
+          t3 = t0;
+          if (!t4)
+            if (35 === _1_0)
+              if ($static)
+                if (i < t2) {
+                  t4 = text.charCodeAt(i + 1) === 123;
+                  if (t4)
+                    t3 = _1_0;
+                } else
+                  t4 = false;
+              else
+                t4 = false;
+            else
+              t4 = false;
+          else
+            t4 = true;
+        } else {
+          t3 = t4;
+          t4 = true;
+        }
+        if (t4) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(t3);
+          continue;
+        }
+        buffer.writeCharCode$1(_1_0);
+      }
+    },
+    StringExpression__bestQuote(strings) {
+      var t1, t2, t3, containsDoubleQuote, t4, t5;
+      for (t1 = J.get$iterator$ax(strings), t2 = type$.CodeUnits, t3 = t2._eval$1("ListIterator<ListBase.E>"), t2 = t2._eval$1("ListBase.E"), containsDoubleQuote = false; t1.moveNext$0();)
+        for (t4 = new A.CodeUnits(t1.get$current(t1)), t4 = new A.ListIterator(t4, t4.get$length(0), t3); t4.moveNext$0();) {
+          t5 = t4.__internal$_current;
+          if (t5 == null)
+            t5 = t2._as(t5);
+          if (t5 === 39)
+            return 34;
+          if (t5 === 34)
+            containsDoubleQuote = true;
+        }
+      return containsDoubleQuote ? 39 : 34;
+    },
+    StringExpression: function StringExpression(t0, t1) {
+      this.text = t0;
+      this.hasQuotes = t1;
+    },
+    SupportsExpression: function SupportsExpression(t0) {
+      this.condition = t0;
+    },
+    UnaryOperationExpression: function UnaryOperationExpression(t0, t1, t2) {
+      this.operator = t0;
+      this.operand = t1;
+      this.span = t2;
+    },
+    UnaryOperator: function UnaryOperator(t0, t1, t2) {
+      this.name = t0;
+      this.operator = t1;
+      this._name = t2;
+    },
+    ValueExpression: function ValueExpression(t0, t1) {
+      this.value = t0;
+      this.span = t1;
+    },
+    VariableExpression: function VariableExpression(t0, t1, t2) {
+      this.namespace = t0;
+      this.name = t1;
+      this.span = t2;
+    },
+    DynamicImport: function DynamicImport(t0, t1) {
+      this.urlString = t0;
+      this.span = t1;
+    },
+    StaticImport: function StaticImport(t0, t1, t2) {
+      this.url = t0;
+      this.modifiers = t1;
+      this.span = t2;
+    },
+    Interpolation$(contents, span) {
+      var t1 = new A.Interpolation(A.List_List$unmodifiable(contents, type$.Object), span);
+      t1.Interpolation$2(contents, span);
+      return t1;
+    },
+    Interpolation: function Interpolation(t0, t1) {
+      this.contents = t0;
+      this.span = t1;
+    },
+    Interpolation_toString_closure: function Interpolation_toString_closure() {
+    },
+    AtRootRule$(children, span, query) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.AtRootRule(query, span, t1, t2);
+    },
+    AtRootRule: function AtRootRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.query = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    AtRule$($name, span, children, value) {
+      var t1 = children == null ? null : A.List_List$unmodifiable(children, type$.Statement),
+        t2 = t1 == null ? null : B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.AtRule($name, value, span, t1, t2 === true);
+    },
+    AtRule: function AtRule(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.span = t2;
+      _.children = t3;
+      _.hasDeclarations = t4;
+    },
+    CallableDeclaration: function CallableDeclaration() {
+    },
+    ContentBlock$($arguments, children, span) {
+      var _s8_ = "@content",
+        t1 = A.stringReplaceAllUnchecked(_s8_, "_", "-"),
+        t2 = A.List_List$unmodifiable(children, type$.Statement),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure());
+      return new A.ContentBlock(t1, _s8_, $arguments, span, t2, t3);
+    },
+    ContentBlock: function ContentBlock(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.name = t0;
+      _.originalName = t1;
+      _.$arguments = t2;
+      _.span = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    ContentRule: function ContentRule(t0, t1) {
+      this.$arguments = t0;
+      this.span = t1;
+    },
+    DebugRule: function DebugRule(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    Declaration$($name, value, span) {
+      return new A.Declaration($name, value, span, null, false);
+    },
+    Declaration$nested($name, children, span, value) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.Declaration($name, value, span, t1, t2);
+    },
+    Declaration: function Declaration(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.span = t2;
+      _.children = t3;
+      _.hasDeclarations = t4;
+    },
+    EachRule$(variables, list, children, span) {
+      var t1 = A.List_List$unmodifiable(variables, type$.String),
+        t2 = A.List_List$unmodifiable(children, type$.Statement),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure());
+      return new A.EachRule(t1, list, span, t2, t3);
+    },
+    EachRule: function EachRule(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.variables = t0;
+      _.list = t1;
+      _.span = t2;
+      _.children = t3;
+      _.hasDeclarations = t4;
+    },
+    EachRule_toString_closure: function EachRule_toString_closure() {
+    },
+    ErrorRule: function ErrorRule(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    ExtendRule: function ExtendRule(t0, t1, t2) {
+      this.selector = t0;
+      this.isOptional = t1;
+      this.span = t2;
+    },
+    ForRule$(variable, from, to, children, span, exclusive) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.ForRule(variable, from, to, exclusive, span, t1, t2);
+    },
+    ForRule: function ForRule(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.variable = t0;
+      _.from = t1;
+      _.to = t2;
+      _.isExclusive = t3;
+      _.span = t4;
+      _.children = t5;
+      _.hasDeclarations = t6;
+    },
+    ForwardRule: function ForwardRule(t0, t1, t2, t3, t4, t5, t6, t7) {
+      var _ = this;
+      _.url = t0;
+      _.shownMixinsAndFunctions = t1;
+      _.shownVariables = t2;
+      _.hiddenMixinsAndFunctions = t3;
+      _.hiddenVariables = t4;
+      _.prefix = t5;
+      _.configuration = t6;
+      _.span = t7;
+    },
+    FunctionRule$($name, $arguments, children, span, comment) {
+      var t1 = A.stringReplaceAllUnchecked($name, "_", "-"),
+        t2 = A.List_List$unmodifiable(children, type$.Statement),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure());
+      return new A.FunctionRule(t1, $name, $arguments, span, t2, t3);
+    },
+    FunctionRule: function FunctionRule(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.name = t0;
+      _.originalName = t1;
+      _.$arguments = t2;
+      _.span = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    IfClause$(expression, children) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement);
+      return new A.IfClause(expression, t1, B.JSArray_methods.any$1(t1, new A.IfRuleClause$__closure()));
+    },
+    ElseClause$(children) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement);
+      return new A.ElseClause(t1, B.JSArray_methods.any$1(t1, new A.IfRuleClause$__closure()));
+    },
+    IfRule: function IfRule(t0, t1, t2) {
+      this.clauses = t0;
+      this.lastClause = t1;
+      this.span = t2;
+    },
+    IfRule_toString_closure: function IfRule_toString_closure() {
+    },
+    IfRuleClause: function IfRuleClause() {
+    },
+    IfRuleClause$__closure: function IfRuleClause$__closure() {
+    },
+    IfRuleClause$___closure: function IfRuleClause$___closure() {
+    },
+    IfClause: function IfClause(t0, t1, t2) {
+      this.expression = t0;
+      this.children = t1;
+      this.hasDeclarations = t2;
+    },
+    ElseClause: function ElseClause(t0, t1) {
+      this.children = t0;
+      this.hasDeclarations = t1;
+    },
+    ImportRule: function ImportRule(t0, t1) {
+      this.imports = t0;
+      this.span = t1;
+    },
+    IncludeRule: function IncludeRule(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.namespace = t0;
+      _.name = t1;
+      _.originalName = t2;
+      _.$arguments = t3;
+      _.content = t4;
+      _.span = t5;
+    },
+    LoudComment: function LoudComment(t0) {
+      this.text = t0;
+    },
+    MediaRule$(query, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.MediaRule(query, span, t1, t2);
+    },
+    MediaRule: function MediaRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.query = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    MixinRule$($name, $arguments, children, span, comment) {
+      var t1 = A.stringReplaceAllUnchecked($name, "_", "-"),
+        t2 = A.List_List$unmodifiable(children, type$.Statement),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure());
+      return new A.MixinRule(t1, $name, $arguments, span, t2, t3);
+    },
+    MixinRule: function MixinRule(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.__MixinRule_hasContent_FI = $;
+      _.name = t0;
+      _.originalName = t1;
+      _.$arguments = t2;
+      _.span = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    _HasContentVisitor: function _HasContentVisitor() {
+    },
+    __HasContentVisitor_Object_StatementSearchVisitor: function __HasContentVisitor_Object_StatementSearchVisitor() {
+    },
+    ParentStatement: function ParentStatement() {
+    },
+    ParentStatement_closure: function ParentStatement_closure() {
+    },
+    ParentStatement__closure: function ParentStatement__closure() {
+    },
+    ReturnRule: function ReturnRule(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    SilentComment: function SilentComment(t0, t1) {
+      this.text = t0;
+      this.span = t1;
+    },
+    StyleRule$(selector, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.StyleRule(selector, span, t1, t2);
+    },
+    StyleRule: function StyleRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.selector = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    Stylesheet$(children, span) {
+      var t1 = A._setArrayType([], type$.JSArray_UseRule),
+        t2 = A._setArrayType([], type$.JSArray_ForwardRule),
+        t3 = A.List_List$unmodifiable(children, type$.Statement),
+        t4 = B.JSArray_methods.any$1(t3, new A.ParentStatement_closure());
+      t1 = new A.Stylesheet(span, false, t1, t2, t3, t4);
+      t1.Stylesheet$internal$3$plainCss(children, span, false);
+      return t1;
+    },
+    Stylesheet$internal(children, span, plainCss) {
+      var t1 = A._setArrayType([], type$.JSArray_UseRule),
+        t2 = A._setArrayType([], type$.JSArray_ForwardRule),
+        t3 = A.List_List$unmodifiable(children, type$.Statement),
+        t4 = B.JSArray_methods.any$1(t3, new A.ParentStatement_closure());
+      t1 = new A.Stylesheet(span, plainCss, t1, t2, t3, t4);
+      t1.Stylesheet$internal$3$plainCss(children, span, plainCss);
+      return t1;
+    },
+    Stylesheet_Stylesheet$parse(contents, syntax, logger, url) {
+      var error, stackTrace, url0, t1, exception, t2;
+      try {
+        switch (syntax) {
+          case B.Syntax_Sass_sass:
+            t1 = A.SpanScanner$(contents, url);
+            t1 = new A.SassParser(A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.VariableDeclaration), t1, logger, null).parse$0();
+            return t1;
+          case B.Syntax_SCSS_scss:
+            t1 = A.ScssParser$(contents, logger, url).parse$0();
+            return t1;
+          case B.Syntax_CSS_css:
+            t1 = A.SpanScanner$(contents, url);
+            t1 = new A.CssParser(A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.VariableDeclaration), t1, logger, null).parse$0();
+            return t1;
+          default:
+            t1 = A.ArgumentError$("Unknown syntax " + syntax.toString$0(0) + ".", null);
+            throw A.wrapException(t1);
+        }
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error;
+          t2 = J.getInterceptor$z(t1);
+          t1 = A.SourceSpanException.prototype.get$span.call(t2, t1);
+          url0 = t1.get$sourceUrl(t1);
+          if (url0 == null || J.toString$0$(url0) === "stdin")
+            throw exception;
+          t1 = type$.Uri;
+          throw A.wrapException(A.throwWithTrace(error.withLoadedUrls$1(A.Set_Set$unmodifiable(A.LinkedHashSet_LinkedHashSet$_literal([url0], t1), t1)), error, stackTrace));
+        } else
+          throw exception;
+      }
+    },
+    Stylesheet: function Stylesheet(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.span = t0;
+      _.plainCss = t1;
+      _._uses = t2;
+      _._forwards = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    SupportsRule$(condition, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.SupportsRule(condition, span, t1, t2);
+    },
+    SupportsRule: function SupportsRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.condition = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    UseRule: function UseRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.url = t0;
+      _.namespace = t1;
+      _.configuration = t2;
+      _.span = t3;
+    },
+    VariableDeclaration$($name, expression, span, comment, global, guarded, namespace) {
+      if (namespace != null && global)
+        A.throwExpression(A.ArgumentError$(string$.Other_, null));
+      return new A.VariableDeclaration(namespace, $name, expression, guarded, global, span);
+    },
+    VariableDeclaration: function VariableDeclaration(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.namespace = t0;
+      _.name = t1;
+      _.expression = t2;
+      _.isGuarded = t3;
+      _.isGlobal = t4;
+      _.span = t5;
+    },
+    WarnRule: function WarnRule(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    WhileRule$(condition, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure());
+      return new A.WhileRule(condition, span, t1, t2);
+    },
+    WhileRule: function WhileRule(t0, t1, t2, t3) {
+      var _ = this;
+      _.condition = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    SupportsAnything: function SupportsAnything(t0, t1) {
+      this.contents = t0;
+      this.span = t1;
+    },
+    SupportsDeclaration: function SupportsDeclaration(t0, t1, t2) {
+      this.name = t0;
+      this.value = t1;
+      this.span = t2;
+    },
+    SupportsFunction: function SupportsFunction(t0, t1, t2) {
+      this.name = t0;
+      this.$arguments = t1;
+      this.span = t2;
+    },
+    SupportsInterpolation: function SupportsInterpolation(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    SupportsNegation: function SupportsNegation(t0, t1) {
+      this.condition = t0;
+      this.span = t1;
+    },
+    SupportsOperation$(left, right, operator, span) {
+      var lowerOperator = operator.toLowerCase();
+      if (lowerOperator !== "and" && lowerOperator !== "or")
+        A.throwExpression(A.ArgumentError$value(operator, "operator", 'may only be "and" or "or".'));
+      return new A.SupportsOperation(left, right, operator, span);
+    },
+    SupportsOperation: function SupportsOperation(t0, t1, t2, t3) {
+      var _ = this;
+      _.left = t0;
+      _.right = t1;
+      _.operator = t2;
+      _.span = t3;
+    },
+    Selector: function Selector() {
+    },
+    _IsInvisibleVisitor0: function _IsInvisibleVisitor0(t0) {
+      this.includeBogus = t0;
+    },
+    _IsBogusVisitor: function _IsBogusVisitor(t0) {
+      this.includeLeadingCombinator = t0;
+    },
+    _IsBogusVisitor_visitComplexSelector_closure: function _IsBogusVisitor_visitComplexSelector_closure(t0) {
+      this.$this = t0;
+    },
+    _IsUselessVisitor: function _IsUselessVisitor() {
+    },
+    _IsUselessVisitor_visitComplexSelector_closure: function _IsUselessVisitor_visitComplexSelector_closure(t0) {
+      this.$this = t0;
+    },
+    __IsBogusVisitor_Object_AnySelectorVisitor: function __IsBogusVisitor_Object_AnySelectorVisitor() {
+    },
+    __IsInvisibleVisitor_Object_AnySelectorVisitor: function __IsInvisibleVisitor_Object_AnySelectorVisitor() {
+    },
+    __IsUselessVisitor_Object_AnySelectorVisitor: function __IsUselessVisitor_Object_AnySelectorVisitor() {
+    },
+    AttributeSelector: function AttributeSelector(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.op = t1;
+      _.value = t2;
+      _.modifier = t3;
+      _.span = t4;
+    },
+    AttributeOperator: function AttributeOperator(t0, t1) {
+      this._attribute$_text = t0;
+      this._name = t1;
+    },
+    ClassSelector: function ClassSelector(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    Combinator: function Combinator(t0, t1) {
+      this._combinator$_text = t0;
+      this._name = t1;
+    },
+    ComplexSelector$(leadingCombinators, components, span, lineBreak) {
+      var t1 = A.List_List$unmodifiable(leadingCombinators, type$.CssValue_Combinator),
+        t2 = A.List_List$unmodifiable(components, type$.ComplexSelectorComponent);
+      if (t1.length === 0 && t2.length === 0)
+        A.throwExpression(A.ArgumentError$(string$.leadin, null));
+      return new A.ComplexSelector(t1, t2, lineBreak, span);
+    },
+    ComplexSelector: function ComplexSelector(t0, t1, t2, t3) {
+      var _ = this;
+      _.leadingCombinators = t0;
+      _.components = t1;
+      _.lineBreak = t2;
+      _.__ComplexSelector_specificity_FI = $;
+      _.span = t3;
+    },
+    ComplexSelector_specificity_closure: function ComplexSelector_specificity_closure() {
+    },
+    ComplexSelectorComponent: function ComplexSelectorComponent(t0, t1, t2) {
+      this.selector = t0;
+      this.combinators = t1;
+      this.span = t2;
+    },
+    ComplexSelectorComponent_toString_closure: function ComplexSelectorComponent_toString_closure() {
+    },
+    CompoundSelector$(components, span) {
+      var t1 = A.List_List$unmodifiable(components, type$.SimpleSelector);
+      if (t1.length === 0)
+        A.throwExpression(A.ArgumentError$("components may not be empty.", null));
+      return new A.CompoundSelector(t1, span);
+    },
+    CompoundSelector: function CompoundSelector(t0, t1) {
+      this.components = t0;
+      this.__CompoundSelector_specificity_FI = $;
+      this.span = t1;
+    },
+    CompoundSelector_specificity_closure: function CompoundSelector_specificity_closure() {
+    },
+    IDSelector: function IDSelector(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    IDSelector_unify_closure: function IDSelector_unify_closure(t0) {
+      this.$this = t0;
+    },
+    SelectorList$(components, span) {
+      var t1 = A.List_List$unmodifiable(components, type$.ComplexSelector);
+      if (t1.length === 0)
+        A.throwExpression(A.ArgumentError$("components may not be empty.", null));
+      return new A.SelectorList(t1, span);
+    },
+    SelectorList_SelectorList$parse(contents, allowParent, interpolationMap, logger, plainCss) {
+      return A.SelectorParser$(contents, allowParent, interpolationMap, logger, plainCss, null).parse$0();
+    },
+    SelectorList: function SelectorList(t0, t1) {
+      this.components = t0;
+      this.span = t1;
+    },
+    SelectorList_asSassList_closure: function SelectorList_asSassList_closure() {
+    },
+    SelectorList_nestWithin_closure: function SelectorList_nestWithin_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.preserveParentSelectors = t1;
+      _.implicitParent = t2;
+      _.parent = t3;
+    },
+    SelectorList_nestWithin__closure: function SelectorList_nestWithin__closure(t0) {
+      this.complex = t0;
+    },
+    SelectorList_nestWithin__closure0: function SelectorList_nestWithin__closure0(t0) {
+      this.complex = t0;
+    },
+    SelectorList__nestWithinCompound_closure: function SelectorList__nestWithinCompound_closure() {
+    },
+    SelectorList__nestWithinCompound_closure0: function SelectorList__nestWithinCompound_closure0(t0) {
+      this.parent = t0;
+    },
+    SelectorList__nestWithinCompound_closure1: function SelectorList__nestWithinCompound_closure1(t0, t1, t2) {
+      this.parentSelector = t0;
+      this.resolvedSimples = t1;
+      this.component = t2;
+    },
+    SelectorList_withAdditionalCombinators_closure: function SelectorList_withAdditionalCombinators_closure(t0) {
+      this.combinators = t0;
+    },
+    _ParentSelectorVisitor: function _ParentSelectorVisitor() {
+    },
+    __ParentSelectorVisitor_Object_SelectorSearchVisitor: function __ParentSelectorVisitor_Object_SelectorSearchVisitor() {
+    },
+    ParentSelector: function ParentSelector(t0, t1) {
+      this.suffix = t0;
+      this.span = t1;
+    },
+    PlaceholderSelector: function PlaceholderSelector(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    PseudoSelector$($name, span, argument, element, selector) {
+      var t1 = !element,
+        t2 = t1 && !A.PseudoSelector__isFakePseudoElement($name);
+      return new A.PseudoSelector($name, A.unvendor($name), t2, t1, argument, selector, span);
+    },
+    PseudoSelector__isFakePseudoElement($name) {
+      switch ($name.charCodeAt(0)) {
+        case 97:
+        case 65:
+          return A.equalsIgnoreCase($name, "after");
+        case 98:
+        case 66:
+          return A.equalsIgnoreCase($name, "before");
+        case 102:
+        case 70:
+          return A.equalsIgnoreCase($name, "first-line") || A.equalsIgnoreCase($name, "first-letter");
+        default:
+          return false;
+      }
+    },
+    PseudoSelector: function PseudoSelector(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.name = t0;
+      _.normalizedName = t1;
+      _.isClass = t2;
+      _.isSyntacticClass = t3;
+      _.argument = t4;
+      _.selector = t5;
+      _.__PseudoSelector_specificity_FI = $;
+      _.span = t6;
+    },
+    PseudoSelector_specificity_closure: function PseudoSelector_specificity_closure(t0) {
+      this.$this = t0;
+    },
+    PseudoSelector_specificity__closure: function PseudoSelector_specificity__closure() {
+    },
+    PseudoSelector_specificity__closure0: function PseudoSelector_specificity__closure0() {
+    },
+    PseudoSelector_unify_closure: function PseudoSelector_unify_closure() {
+    },
+    QualifiedName: function QualifiedName(t0, t1) {
+      this.name = t0;
+      this.namespace = t1;
+    },
+    SimpleSelector: function SimpleSelector() {
+    },
+    SimpleSelector_isSuperselector_closure: function SimpleSelector_isSuperselector_closure(t0) {
+      this.$this = t0;
+    },
+    SimpleSelector_isSuperselector__closure: function SimpleSelector_isSuperselector__closure(t0) {
+      this.$this = t0;
+    },
+    TypeSelector: function TypeSelector(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    UniversalSelector: function UniversalSelector(t0, t1) {
+      this.namespace = t0;
+      this.span = t1;
+    },
+    compileAsync(path, charset, fatalDeprecations, futureDeprecations, importCache, logger, quietDeps, silenceDeprecations, sourceMap, style, syntax, verbose) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CompileResult),
+        $async$returnValue, t3, t0, stylesheet, result, t1, t2;
+      var $async$compileAsync = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.Deprecation;
+              t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              t2.addAll$1(0, silenceDeprecations);
+              t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              t3.addAll$1(0, fatalDeprecations);
+              t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              t1.addAll$1(0, futureDeprecations);
+              logger = A.DeprecationProcessingLogger$(logger, t3, t1, !verbose, t2);
+              t1 = syntax === A.Syntax_forPath(path);
+              $async$goto = t1 ? 3 : 5;
+              break;
+            case 3:
+              // then
+              t1 = $.$get$FilesystemImporter_cwd();
+              t2 = A.isNodeJs() ? self.process : null;
+              if (!J.$eq$(t2 == null ? null : J.get$platform$x(t2), "win32")) {
+                t2 = A.isNodeJs() ? self.process : null;
+                t2 = J.$eq$(t2 == null ? null : J.get$platform$x(t2), "darwin");
+              } else
+                t2 = true;
+              if (t2) {
+                t2 = $.$get$context();
+                t3 = A._realCasePath(A.absolute(t2.normalize$1(path), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                t0 = t3;
+                t3 = t2;
+                t2 = t0;
+              } else {
+                t2 = $.$get$context();
+                t3 = t2.canonicalize$1(0, path);
+                t0 = t3;
+                t3 = t2;
+                t2 = t0;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(importCache.importCanonical$3$originalUrl(t1, t3.toUri$1(t2), t3.toUri$1(path)), $async$compileAsync);
+            case 6:
+              // returning from await.
+              t3 = $async$result;
+              t3.toString;
+              stylesheet = t3;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              t1 = A.readFile(path);
+              stylesheet = A.Stylesheet_Stylesheet$parse(t1, syntax, logger, $.$get$context().toUri$1(path));
+            case 4:
+              // join
+              $async$goto = 7;
+              return A._asyncAwait(A._compileStylesheet0(stylesheet, logger, importCache, null, $.$get$FilesystemImporter_cwd(), null, style, true, null, null, quietDeps, sourceMap, charset), $async$compileAsync);
+            case 7:
+              // returning from await.
+              result = $async$result;
+              logger.summarize$1$js(false);
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$compileAsync, $async$completer);
+    },
+    compileStringAsync(source, charset, fatalDeprecations, futureDeprecations, importCache, importer, logger, quietDeps, silenceDeprecations, sourceMap, style, syntax, verbose) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CompileResult),
+        $async$returnValue, t3, stylesheet, result, t1, t2;
+      var $async$compileStringAsync = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.Deprecation;
+              t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              t2.addAll$1(0, silenceDeprecations);
+              t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              t3.addAll$1(0, fatalDeprecations);
+              t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              t1.addAll$1(0, futureDeprecations);
+              logger = A.DeprecationProcessingLogger$(logger, t3, t1, !verbose, t2);
+              stylesheet = A.Stylesheet_Stylesheet$parse(source, syntax, logger, null);
+              $async$goto = 3;
+              return A._asyncAwait(A._compileStylesheet0(stylesheet, logger, importCache, null, importer, null, style, true, null, null, quietDeps, sourceMap, charset), $async$compileStringAsync);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              logger.summarize$1$js(false);
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$compileStringAsync, $async$completer);
+    },
+    _compileStylesheet0(stylesheet, logger, importCache, nodeImporter, importer, functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CompileResult),
+        $async$returnValue, serializeResult, resultSourceMap, $async$temp1;
+      var $async$_compileStylesheet0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait(A._EvaluateVisitor$0(functions, importCache, logger, nodeImporter, quietDeps, sourceMap).run$2(0, importer, stylesheet), $async$_compileStylesheet0);
+            case 3:
+              // returning from await.
+              serializeResult = $async$temp1.serialize($async$result._1, charset, indentWidth, false, lineFeed, sourceMap, style, true);
+              resultSourceMap = serializeResult._1;
+              if (resultSourceMap != null)
+                A.mapInPlace(resultSourceMap.urls, new A._compileStylesheet_closure0(stylesheet, importCache));
+              $async$returnValue = new A.CompileResult(serializeResult);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_compileStylesheet0, $async$completer);
+    },
+    _compileStylesheet_closure0: function _compileStylesheet_closure0(t0, t1) {
+      this.stylesheet = t0;
+      this.importCache = t1;
+    },
+    AsyncEnvironment$() {
+      var t1 = type$.String,
+        t2 = type$.Module_AsyncCallable,
+        t3 = type$.AstNode,
+        t4 = type$.int,
+        t5 = type$.AsyncCallable,
+        t6 = type$.JSArray_Map_String_AsyncCallable;
+      return new A.AsyncEnvironment(A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), null, null, A._setArrayType([], type$.JSArray_Module_AsyncCallable), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value)], type$.JSArray_Map_String_Value), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t3)], type$.JSArray_Map_String_AstNode), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), null);
+    },
+    AsyncEnvironment$_(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, _functions, _mixins, _content) {
+      var t1 = type$.String,
+        t2 = type$.int;
+      return new A.AsyncEnvironment(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _functions, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _mixins, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _content);
+    },
+    _EnvironmentModule__EnvironmentModule0(environment, css, preModuleComments, extensionStore, forwarded) {
+      var t1, t2, t3, t4, t5, t6, module, result, t7;
+      if (forwarded == null)
+        forwarded = B.Set_empty2;
+      t1 = type$.dynamic;
+      t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t2 = type$.Module_AsyncCallable, t3 = type$.List_CssComment, t4 = A.MapExtensions_get_pairs(preModuleComments, t2, t3), t4 = t4.get$iterator(t4), t5 = type$.CssComment; t4.moveNext$0();) {
+        t6 = t4.get$current(t4);
+        module = t6._0;
+        result = A.List_List$from(t6._1, false, t5);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        t1.$indexSet(0, module, result);
+      }
+      t1 = A.ConstantMap_ConstantMap$from(t1, t2, t3);
+      t2 = A._EnvironmentModule__makeModulesByVariable0(forwarded);
+      t3 = A._EnvironmentModule__memberMap0(B.JSArray_methods.get$first(environment._async_environment$_variables), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure5(), type$.Map_String_Value), type$.Value);
+      t4 = A._EnvironmentModule__memberMap0(B.JSArray_methods.get$first(environment._async_environment$_variableNodes), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure6(), type$.Map_String_AstNode), type$.AstNode);
+      t5 = type$.Map_String_AsyncCallable;
+      t6 = type$.AsyncCallable;
+      t7 = A._EnvironmentModule__memberMap0(B.JSArray_methods.get$first(environment._async_environment$_functions), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure7(), t5), t6);
+      t6 = A._EnvironmentModule__memberMap0(B.JSArray_methods.get$first(environment._async_environment$_mixins), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure8(), t5), t6);
+      t5 = J.get$isNotEmpty$asx(css.get$children(css)) || preModuleComments.get$isNotEmpty(preModuleComments) || B.JSArray_methods.any$1(environment._async_environment$_allModules, new A._EnvironmentModule__EnvironmentModule_closure9());
+      return A._EnvironmentModule$_0(environment, css, t1, extensionStore, t2, t3, t4, t7, t6, t5, !extensionStore.get$isEmpty(extensionStore) || B.JSArray_methods.any$1(environment._async_environment$_allModules, new A._EnvironmentModule__EnvironmentModule_closure10()));
+    },
+    _EnvironmentModule__makeModulesByVariable0(forwarded) {
+      var modulesByVariable, t1, t2, t3, t4, t5;
+      if (forwarded.get$isEmpty(forwarded))
+        return B.Map_empty8;
+      modulesByVariable = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Module_AsyncCallable);
+      for (t1 = forwarded.get$iterator(forwarded); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        if (t2 instanceof A._EnvironmentModule0) {
+          for (t3 = t2._async_environment$_modulesByVariable, t3 = t3.get$values(t3), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+            t4 = t3.get$current(t3);
+            t5 = t4.get$variables();
+            A.setAll(modulesByVariable, t5.get$keys(t5), t4);
+          }
+          A.setAll(modulesByVariable, J.get$keys$z(B.JSArray_methods.get$first(t2._async_environment$_environment._async_environment$_variables)), t2);
+        } else {
+          t3 = t2.get$variables();
+          A.setAll(modulesByVariable, t3.get$keys(t3), t2);
+        }
+      }
+      return modulesByVariable;
+    },
+    _EnvironmentModule__memberMap0(localMap, otherMaps, $V) {
+      var t1, t2, t3;
+      localMap = new A.PublicMemberMapView(localMap, $V._eval$1("PublicMemberMapView<0>"));
+      if (otherMaps.get$isEmpty(otherMaps))
+        return localMap;
+      t1 = A._setArrayType([], $V._eval$1("JSArray<Map<String,0>>"));
+      for (t2 = otherMaps.get$iterator(otherMaps); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        if (t3.get$isNotEmpty(t3))
+          t1.push(t3);
+      }
+      t1.push(localMap);
+      if (t1.length === 1)
+        return localMap;
+      return A.MergedMapView$(t1, type$.String, $V);
+    },
+    _EnvironmentModule$_0(_environment, css, preModuleComments, extensionStore, _modulesByVariable, variables, variableNodes, functions, mixins, transitivelyContainsCss, transitivelyContainsExtensions) {
+      return new A._EnvironmentModule0(_environment._async_environment$_allModules, variables, variableNodes, functions, mixins, extensionStore, css, preModuleComments, transitivelyContainsCss, transitivelyContainsExtensions, _environment, _modulesByVariable);
+    },
+    AsyncEnvironment: function AsyncEnvironment(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14) {
+      var _ = this;
+      _._async_environment$_modules = t0;
+      _._async_environment$_namespaceNodes = t1;
+      _._async_environment$_globalModules = t2;
+      _._async_environment$_importedModules = t3;
+      _._async_environment$_forwardedModules = t4;
+      _._async_environment$_nestedForwardedModules = t5;
+      _._async_environment$_allModules = t6;
+      _._async_environment$_variables = t7;
+      _._async_environment$_variableNodes = t8;
+      _._async_environment$_variableIndices = t9;
+      _._async_environment$_functions = t10;
+      _._async_environment$_functionIndices = t11;
+      _._async_environment$_mixins = t12;
+      _._async_environment$_mixinIndices = t13;
+      _._async_environment$_content = t14;
+      _._async_environment$_inMixin = false;
+      _._async_environment$_inSemiGlobalScope = true;
+      _._async_environment$_lastVariableIndex = _._async_environment$_lastVariableName = null;
+    },
+    AsyncEnvironment__getVariableFromGlobalModule_closure: function AsyncEnvironment__getVariableFromGlobalModule_closure(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment_setVariable_closure: function AsyncEnvironment_setVariable_closure(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    AsyncEnvironment_setVariable_closure0: function AsyncEnvironment_setVariable_closure0(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment_setVariable_closure1: function AsyncEnvironment_setVariable_closure1(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    AsyncEnvironment__getFunctionFromGlobalModule_closure: function AsyncEnvironment__getFunctionFromGlobalModule_closure(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment__getMixinFromGlobalModule_closure: function AsyncEnvironment__getMixinFromGlobalModule_closure(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment_toModule_closure: function AsyncEnvironment_toModule_closure() {
+    },
+    AsyncEnvironment_toDummyModule_closure: function AsyncEnvironment_toDummyModule_closure() {
+    },
+    _EnvironmentModule0: function _EnvironmentModule0(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11) {
+      var _ = this;
+      _.upstream = t0;
+      _.variables = t1;
+      _.variableNodes = t2;
+      _.functions = t3;
+      _.mixins = t4;
+      _.extensionStore = t5;
+      _.css = t6;
+      _.preModuleComments = t7;
+      _.transitivelyContainsCss = t8;
+      _.transitivelyContainsExtensions = t9;
+      _._async_environment$_environment = t10;
+      _._async_environment$_modulesByVariable = t11;
+    },
+    _EnvironmentModule__EnvironmentModule_closure5: function _EnvironmentModule__EnvironmentModule_closure5() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure6: function _EnvironmentModule__EnvironmentModule_closure6() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure7: function _EnvironmentModule__EnvironmentModule_closure7() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure8: function _EnvironmentModule__EnvironmentModule_closure8() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure9: function _EnvironmentModule__EnvironmentModule_closure9() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure10: function _EnvironmentModule__EnvironmentModule_closure10() {
+    },
+    AsyncImportCache__toImporters(importers, loadPaths, packageConfig) {
+      var t1, t2, t3, t4, _i, path, _null = null,
+        sassPath = A.getEnvironmentVariable("SASS_PATH");
+      if (A.isBrowser()) {
+        t1 = A._setArrayType([], type$.JSArray_AsyncImporter_2);
+        B.JSArray_methods.addAll$1(t1, importers);
+        return t1;
+      }
+      t1 = A._setArrayType([], type$.JSArray_AsyncImporter_2);
+      B.JSArray_methods.addAll$1(t1, importers);
+      for (t2 = J.get$iterator$ax(loadPaths); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push(new A.FilesystemImporter($.$get$context().absolute$15(t3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+      }
+      if (sassPath != null) {
+        t2 = A.isNodeJs() ? self.process : _null;
+        t3 = sassPath.split(J.$eq$(t2 == null ? _null : J.get$platform$x(t2), "win32") ? ";" : ":");
+        t4 = t3.length;
+        _i = 0;
+        for (; _i < t4; ++_i) {
+          path = t3[_i];
+          t1.push(new A.FilesystemImporter($.$get$context().absolute$15(path, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+        }
+      }
+      return t1;
+    },
+    AsyncImportCache: function AsyncImportCache(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._async_import_cache$_importers = t0;
+      _._async_import_cache$_logger = t1;
+      _._async_import_cache$_canonicalizeCache = t2;
+      _._async_import_cache$_perImporterCanonicalizeCache = t3;
+      _._async_import_cache$_nonCanonicalRelativeUrls = t4;
+      _._async_import_cache$_importCache = t5;
+      _._async_import_cache$_resultsCache = t6;
+    },
+    AsyncImportCache_canonicalize_closure: function AsyncImportCache_canonicalize_closure(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.baseImporter = t1;
+      _.resolvedUrl = t2;
+      _.baseUrl = t3;
+      _.forImport = t4;
+      _.key = t5;
+      _.url = t6;
+    },
+    AsyncImportCache__canonicalize_closure: function AsyncImportCache__canonicalize_closure(t0, t1) {
+      this.importer = t0;
+      this.url = t1;
+    },
+    AsyncImportCache_importCanonical_closure: function AsyncImportCache_importCanonical_closure(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.canonicalUrl = t2;
+      _.originalUrl = t3;
+      _.quiet = t4;
+    },
+    AsyncImportCache_humanize_closure: function AsyncImportCache_humanize_closure(t0) {
+      this.canonicalUrl = t0;
+    },
+    AsyncImportCache_humanize_closure0: function AsyncImportCache_humanize_closure0() {
+    },
+    AsyncImportCache_humanize_closure1: function AsyncImportCache_humanize_closure1() {
+    },
+    AsyncImportCache_humanize_closure2: function AsyncImportCache_humanize_closure2(t0) {
+      this.canonicalUrl = t0;
+    },
+    AsyncBuiltInCallable$mixin($name, $arguments, callback, acceptsContent, url) {
+      return new A.AsyncBuiltInCallable($name, A.ScssParser$("@mixin " + $name + "(" + $arguments + ") {", null, url).parseArgumentDeclaration$0(), new A.AsyncBuiltInCallable$mixin_closure(callback), false);
+    },
+    AsyncBuiltInCallable: function AsyncBuiltInCallable(t0, t1, t2, t3) {
+      var _ = this;
+      _.name = t0;
+      _._async_built_in$_arguments = t1;
+      _._async_built_in$_callback = t2;
+      _.acceptsContent = t3;
+    },
+    AsyncBuiltInCallable$mixin_closure: function AsyncBuiltInCallable$mixin_closure(t0) {
+      this.callback = t0;
+    },
+    BuiltInCallable$function($name, $arguments, callback, url) {
+      return new A.BuiltInCallable($name, A._setArrayType([new A._Record_2(A.ScssParser$("@function " + $name + "(" + $arguments + ") {", null, url).parseArgumentDeclaration$0(), callback)], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value), false);
+    },
+    BuiltInCallable$mixin($name, $arguments, callback, acceptsContent, url) {
+      return new A.BuiltInCallable($name, A._setArrayType([new A._Record_2(A.ScssParser$("@mixin " + $name + "(" + $arguments + ") {", null, url).parseArgumentDeclaration$0(), new A.BuiltInCallable$mixin_closure(callback))], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value), acceptsContent);
+    },
+    BuiltInCallable$overloadedFunction($name, overloads) {
+      var t2, t3, t4, t5, t6, args, callback,
+        t1 = A._setArrayType([], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value);
+      for (t2 = type$.String, t3 = A.MapExtensions_get_pairs(overloads, t2, type$.Value_Function_List_Value), t3 = t3.get$iterator(t3), t4 = "@function " + $name + "(", t5 = type$.VariableDeclaration; t3.moveNext$0();) {
+        t6 = t3.get$current(t3);
+        args = t6._0;
+        callback = t6._1;
+        t6 = A.SpanScanner$(t4 + args + ") {", null);
+        t1.push(new A._Record_2(new A.ScssParser(A.LinkedHashMap_LinkedHashMap$_empty(t2, t5), t6, B.StderrLogger_false, null).parseArgumentDeclaration$0(), callback));
+      }
+      return new A.BuiltInCallable($name, t1, false);
+    },
+    BuiltInCallable: function BuiltInCallable(t0, t1, t2) {
+      this.name = t0;
+      this._overloads = t1;
+      this.acceptsContent = t2;
+    },
+    BuiltInCallable$mixin_closure: function BuiltInCallable$mixin_closure(t0) {
+      this.callback = t0;
+    },
+    PlainCssCallable: function PlainCssCallable(t0) {
+      this.name = t0;
+    },
+    UserDefinedCallable: function UserDefinedCallable(t0, t1, t2, t3) {
+      var _ = this;
+      _.declaration = t0;
+      _.environment = t1;
+      _.inDependency = t2;
+      _.$ti = t3;
+    },
+    _compileStylesheet(stylesheet, logger, importCache, nodeImporter, importer, functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset) {
+      var serializeResult = A.serialize(A._EvaluateVisitor$(functions, importCache, logger, nodeImporter, quietDeps, sourceMap).run$2(0, importer, stylesheet)._1, charset, indentWidth, false, lineFeed, sourceMap, style, true),
+        resultSourceMap = serializeResult._1;
+      if (resultSourceMap != null)
+        A.mapInPlace(resultSourceMap.urls, new A._compileStylesheet_closure(stylesheet, importCache));
+      return new A.CompileResult(serializeResult);
+    },
+    _compileStylesheet_closure: function _compileStylesheet_closure(t0, t1) {
+      this.stylesheet = t0;
+      this.importCache = t1;
+    },
+    CompileResult: function CompileResult(t0) {
+      this._serialize = t0;
+    },
+    Configuration: function Configuration(t0, t1) {
+      this._configuration$_values = t0;
+      this.__originalConfiguration = t1;
+    },
+    ExplicitConfiguration: function ExplicitConfiguration(t0, t1, t2) {
+      this.nodeWithSpan = t0;
+      this._configuration$_values = t1;
+      this.__originalConfiguration = t2;
+    },
+    ConfiguredValue: function ConfiguredValue(t0, t1, t2) {
+      this.value = t0;
+      this.configurationSpan = t1;
+      this.assignmentNode = t2;
+    },
+    Deprecation_fromId(id) {
+      return A.IterableExtension_firstWhereOrNull(B.List_V43, new A.Deprecation_fromId_closure(id));
+    },
+    Deprecation_forVersion(version) {
+      var t2, _i, deprecation, $self, t3,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(type$.Deprecation);
+      for (t2 = A.VersionRange_VersionRange(true, version).get$allows(), _i = 0; _i < 18; ++_i) {
+        deprecation = B.List_V43[_i];
+        $self = deprecation._deprecatedIn;
+        t3 = $self == null ? null : A.Version___parse_tearOff($self);
+        t3 = t3 == null ? null : t2.call$1(t3);
+        if (t3 == null ? false : t3)
+          t1.add$1(0, deprecation);
+      }
+      return t1;
+    },
+    Deprecation: function Deprecation(t0, t1, t2, t3) {
+      var _ = this;
+      _.id = t0;
+      _._deprecatedIn = t1;
+      _.isFuture = t2;
+      _._name = t3;
+    },
+    Deprecation_fromId_closure: function Deprecation_fromId_closure(t0) {
+      this.id = t0;
+    },
+    Environment$() {
+      var t1 = type$.String,
+        t2 = type$.Module_Callable,
+        t3 = type$.AstNode,
+        t4 = type$.int,
+        t5 = type$.Callable,
+        t6 = type$.JSArray_Map_String_Callable;
+      return new A.Environment(A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), null, null, A._setArrayType([], type$.JSArray_Module_Callable), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value)], type$.JSArray_Map_String_Value), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t3)], type$.JSArray_Map_String_AstNode), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), null);
+    },
+    Environment$_(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, _functions, _mixins, _content) {
+      var t1 = type$.String,
+        t2 = type$.int;
+      return new A.Environment(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _functions, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _mixins, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _content);
+    },
+    _EnvironmentModule__EnvironmentModule(environment, css, preModuleComments, extensionStore, forwarded) {
+      var t1, t2, t3, t4, t5, t6, module, result, t7;
+      if (forwarded == null)
+        forwarded = B.Set_empty0;
+      t1 = type$.dynamic;
+      t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t2 = type$.Module_Callable, t3 = type$.List_CssComment, t4 = A.MapExtensions_get_pairs(preModuleComments, t2, t3), t4 = t4.get$iterator(t4), t5 = type$.CssComment; t4.moveNext$0();) {
+        t6 = t4.get$current(t4);
+        module = t6._0;
+        result = A.List_List$from(t6._1, false, t5);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        t1.$indexSet(0, module, result);
+      }
+      t1 = A.ConstantMap_ConstantMap$from(t1, t2, t3);
+      t2 = A._EnvironmentModule__makeModulesByVariable(forwarded);
+      t3 = A._EnvironmentModule__memberMap(B.JSArray_methods.get$first(environment._variables), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure(), type$.Map_String_Value), type$.Value);
+      t4 = A._EnvironmentModule__memberMap(B.JSArray_methods.get$first(environment._variableNodes), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure0(), type$.Map_String_AstNode), type$.AstNode);
+      t5 = type$.Map_String_Callable;
+      t6 = type$.Callable;
+      t7 = A._EnvironmentModule__memberMap(B.JSArray_methods.get$first(environment._functions), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure1(), t5), t6);
+      t6 = A._EnvironmentModule__memberMap(B.JSArray_methods.get$first(environment._mixins), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure2(), t5), t6);
+      t5 = J.get$isNotEmpty$asx(css.get$children(css)) || preModuleComments.get$isNotEmpty(preModuleComments) || B.JSArray_methods.any$1(environment._allModules, new A._EnvironmentModule__EnvironmentModule_closure3());
+      return A._EnvironmentModule$_(environment, css, t1, extensionStore, t2, t3, t4, t7, t6, t5, !extensionStore.get$isEmpty(extensionStore) || B.JSArray_methods.any$1(environment._allModules, new A._EnvironmentModule__EnvironmentModule_closure4()));
+    },
+    _EnvironmentModule__makeModulesByVariable(forwarded) {
+      var modulesByVariable, t1, t2, t3, t4, t5;
+      if (forwarded.get$isEmpty(forwarded))
+        return B.Map_empty1;
+      modulesByVariable = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Module_Callable);
+      for (t1 = forwarded.get$iterator(forwarded); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        if (t2 instanceof A._EnvironmentModule) {
+          for (t3 = t2._modulesByVariable, t3 = t3.get$values(t3), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+            t4 = t3.get$current(t3);
+            t5 = t4.get$variables();
+            A.setAll(modulesByVariable, t5.get$keys(t5), t4);
+          }
+          A.setAll(modulesByVariable, J.get$keys$z(B.JSArray_methods.get$first(t2._environment$_environment._variables)), t2);
+        } else {
+          t3 = t2.get$variables();
+          A.setAll(modulesByVariable, t3.get$keys(t3), t2);
+        }
+      }
+      return modulesByVariable;
+    },
+    _EnvironmentModule__memberMap(localMap, otherMaps, $V) {
+      var t1, t2, t3;
+      localMap = new A.PublicMemberMapView(localMap, $V._eval$1("PublicMemberMapView<0>"));
+      if (otherMaps.get$isEmpty(otherMaps))
+        return localMap;
+      t1 = A._setArrayType([], $V._eval$1("JSArray<Map<String,0>>"));
+      for (t2 = otherMaps.get$iterator(otherMaps); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        if (t3.get$isNotEmpty(t3))
+          t1.push(t3);
+      }
+      t1.push(localMap);
+      if (t1.length === 1)
+        return localMap;
+      return A.MergedMapView$(t1, type$.String, $V);
+    },
+    _EnvironmentModule$_(_environment, css, preModuleComments, extensionStore, _modulesByVariable, variables, variableNodes, functions, mixins, transitivelyContainsCss, transitivelyContainsExtensions) {
+      return new A._EnvironmentModule(_environment._allModules, variables, variableNodes, functions, mixins, extensionStore, css, preModuleComments, transitivelyContainsCss, transitivelyContainsExtensions, _environment, _modulesByVariable);
+    },
+    Environment: function Environment(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14) {
+      var _ = this;
+      _._environment$_modules = t0;
+      _._namespaceNodes = t1;
+      _._globalModules = t2;
+      _._importedModules = t3;
+      _._forwardedModules = t4;
+      _._nestedForwardedModules = t5;
+      _._allModules = t6;
+      _._variables = t7;
+      _._variableNodes = t8;
+      _._variableIndices = t9;
+      _._functions = t10;
+      _._functionIndices = t11;
+      _._mixins = t12;
+      _._mixinIndices = t13;
+      _._content = t14;
+      _._inMixin = false;
+      _._inSemiGlobalScope = true;
+      _._lastVariableIndex = _._lastVariableName = null;
+    },
+    Environment__getVariableFromGlobalModule_closure: function Environment__getVariableFromGlobalModule_closure(t0) {
+      this.name = t0;
+    },
+    Environment_setVariable_closure: function Environment_setVariable_closure(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    Environment_setVariable_closure0: function Environment_setVariable_closure0(t0) {
+      this.name = t0;
+    },
+    Environment_setVariable_closure1: function Environment_setVariable_closure1(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    Environment__getFunctionFromGlobalModule_closure: function Environment__getFunctionFromGlobalModule_closure(t0) {
+      this.name = t0;
+    },
+    Environment__getMixinFromGlobalModule_closure: function Environment__getMixinFromGlobalModule_closure(t0) {
+      this.name = t0;
+    },
+    Environment_toModule_closure: function Environment_toModule_closure() {
+    },
+    Environment_toDummyModule_closure: function Environment_toDummyModule_closure() {
+    },
+    _EnvironmentModule: function _EnvironmentModule(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11) {
+      var _ = this;
+      _.upstream = t0;
+      _.variables = t1;
+      _.variableNodes = t2;
+      _.functions = t3;
+      _.mixins = t4;
+      _.extensionStore = t5;
+      _.css = t6;
+      _.preModuleComments = t7;
+      _.transitivelyContainsCss = t8;
+      _.transitivelyContainsExtensions = t9;
+      _._environment$_environment = t10;
+      _._modulesByVariable = t11;
+    },
+    _EnvironmentModule__EnvironmentModule_closure: function _EnvironmentModule__EnvironmentModule_closure() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure0: function _EnvironmentModule__EnvironmentModule_closure0() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure1: function _EnvironmentModule__EnvironmentModule_closure1() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure2: function _EnvironmentModule__EnvironmentModule_closure2() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure3: function _EnvironmentModule__EnvironmentModule_closure3() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure4: function _EnvironmentModule__EnvironmentModule_closure4() {
+    },
+    SassException$(message, span, loadedUrls) {
+      return new A.SassException(loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    MultiSpanSassException$(message, span, primaryLabel, secondarySpans, loadedUrls) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassException(primaryLabel, t1, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    SassRuntimeException$(message, span, trace, loadedUrls) {
+      return new A.SassRuntimeException(trace, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    MultiSpanSassRuntimeException$(message, span, primaryLabel, secondarySpans, trace, loadedUrls) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassRuntimeException(trace, primaryLabel, t1, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    SassFormatException$(message, span, loadedUrls) {
+      return new A.SassFormatException(loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    MultiSpanSassFormatException$(message, span, primaryLabel, secondarySpans, loadedUrls) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassFormatException(primaryLabel, t1, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    SassScriptException$(message, argumentName) {
+      return new A.SassScriptException(argumentName == null ? message : "$" + argumentName + ": " + message);
+    },
+    MultiSpanSassScriptException$(message, primaryLabel, secondarySpans) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassScriptException(primaryLabel, t1, message);
+    },
+    SassException: function SassException(t0, t1, t2) {
+      this.loadedUrls = t0;
+      this._span_exception$_message = t1;
+      this._span = t2;
+    },
+    MultiSpanSassException: function MultiSpanSassException(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.primaryLabel = t0;
+      _.secondarySpans = t1;
+      _.loadedUrls = t2;
+      _._span_exception$_message = t3;
+      _._span = t4;
+    },
+    SassRuntimeException: function SassRuntimeException(t0, t1, t2, t3) {
+      var _ = this;
+      _.trace = t0;
+      _.loadedUrls = t1;
+      _._span_exception$_message = t2;
+      _._span = t3;
+    },
+    MultiSpanSassRuntimeException: function MultiSpanSassRuntimeException(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.trace = t0;
+      _.primaryLabel = t1;
+      _.secondarySpans = t2;
+      _.loadedUrls = t3;
+      _._span_exception$_message = t4;
+      _._span = t5;
+    },
+    SassFormatException: function SassFormatException(t0, t1, t2) {
+      this.loadedUrls = t0;
+      this._span_exception$_message = t1;
+      this._span = t2;
+    },
+    MultiSpanSassFormatException: function MultiSpanSassFormatException(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.primaryLabel = t0;
+      _.secondarySpans = t1;
+      _.loadedUrls = t2;
+      _._span_exception$_message = t3;
+      _._span = t4;
+    },
+    SassScriptException: function SassScriptException(t0) {
+      this.message = t0;
+    },
+    MultiSpanSassScriptException: function MultiSpanSassScriptException(t0, t1, t2) {
+      this.primaryLabel = t0;
+      this.secondarySpans = t1;
+      this.message = t2;
+    },
+    compileStylesheet(options, graph, source, destination, ifModified) {
+      return A.compileStylesheet$body(options, graph, source, destination, ifModified);
+    },
+    compileStylesheet$body(options, graph, source, destination, ifModified) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_3_int_and_String_and_nullable_String),
+        $async$returnValue, $async$handler = 2, $async$currentError, error, stackTrace, message, error0, stackTrace0, path, message0, exception, t1, $async$exception;
+      var $async$compileStylesheet = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              $async$goto = 7;
+              return A._asyncAwait(A._compileStylesheetWithoutErrorHandling(options, graph, source, destination, ifModified), $async$compileStylesheet);
+            case 7:
+              // returning from await.
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                if (destination != null && !options.get$emitErrorCss())
+                  A._tryDelete(destination);
+                message = J.toString$1$color$(error, options.get$color());
+                if (A._asBool(options._options.$index(0, "trace"))) {
+                  t1 = A.getTrace(error);
+                  if (t1 == null)
+                    t1 = stackTrace;
+                } else
+                  t1 = null;
+                $async$returnValue = A._getErrorWithStackTrace(65, message, t1);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else if (t1 instanceof A.FileSystemException) {
+                error0 = t1;
+                stackTrace0 = A.getTraceFromException($async$exception);
+                path = error0.path;
+                message0 = path == null ? error0.message : "Error reading " + $.$get$context().relative$2$from(path, null) + ": " + error0.message + ".";
+                if (A._asBool(options._options.$index(0, "trace"))) {
+                  t1 = A.getTrace(error0);
+                  if (t1 == null)
+                    t1 = stackTrace0;
+                } else
+                  t1 = null;
+                $async$returnValue = A._getErrorWithStackTrace(66, message0, t1);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$compileStylesheet, $async$completer);
+    },
+    _compileStylesheetWithoutErrorHandling(options, graph, source, destination, ifModified) {
+      return A._compileStylesheetWithoutErrorHandling$body(options, graph, source, destination, ifModified);
+    },
+    _compileStylesheetWithoutErrorHandling$body(options, graph, source, destination, ifModified) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$handler = 2, $async$currentError, syntax, result, importCache, error, t1, exception, t2, t3, t4, t5, t6, t7, t8, t9, t10, result0, t11, t12, t13, t14, logger, stylesheet, t0, css, buffer, sourceName, destinationName, nowStr, timestamp, importer, $async$exception;
+      var $async$_compileStylesheetWithoutErrorHandling = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              importer = $.$get$FilesystemImporter_cwd();
+              if (ifModified)
+                try {
+                  if (source != null)
+                    if (destination != null) {
+                      t1 = A.absolute(source, null, null, null, null, null, null, null, null, null, null, null, null, null, null);
+                      t1 = !graph.modifiedSince$3($.$get$context().toUri$1(t1), A.modificationTime(destination), importer);
+                    } else
+                      t1 = false;
+                  else
+                    t1 = false;
+                  if (t1) {
+                    // goto return
+                    $async$goto = 1;
+                    break;
+                  }
+                } catch (exception) {
+                  if (!(A.unwrapException(exception) instanceof A.FileSystemException))
+                    throw exception;
+                }
+              syntax = null;
+              if (A._asBoolQ(options._ifParsed$1("indented")) === true)
+                syntax = B.Syntax_Sass_sass;
+              else if (source != null)
+                syntax = A.Syntax_forPath(source);
+              else
+                syntax = B.Syntax_SCSS_scss;
+              result = null;
+              $async$handler = 4;
+              t1 = options._options;
+              $async$goto = A._asBool(t1.$index(0, "async")) ? 7 : 9;
+              break;
+            case 7:
+              // then
+              t2 = options.get$pkgImporters();
+              t3 = type$.List_String._as(t1.$index(0, "load-path"));
+              t4 = A._asBool(t1.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(options.get$color());
+              t5 = type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl;
+              t6 = type$.Record_3_AsyncImporter_and_Uri_and_bool_forImport;
+              t7 = type$.Uri;
+              t3 = A.AsyncImportCache__toImporters(t2, t3, null);
+              importCache = new A.AsyncImportCache(t3, t4, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t5), A.LinkedHashMap_LinkedHashMap$_empty(t6, t5), A.LinkedHashMap_LinkedHashMap$_empty(t6, t7), A.LinkedHashMap_LinkedHashMap$_empty(t7, type$.nullable_Stylesheet), A.LinkedHashMap_LinkedHashMap$_empty(t7, type$.ImporterResult));
+              $async$goto = source == null ? 10 : 12;
+              break;
+            case 10:
+              // then
+              $async$goto = 13;
+              return A._asyncAwait(A.readStdin(), $async$_compileStylesheetWithoutErrorHandling);
+            case 13:
+              // returning from await.
+              t2 = $async$result;
+              t3 = syntax;
+              t4 = A._asBool(t1.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(options.get$color());
+              t5 = $.$get$FilesystemImporter_cwd();
+              t6 = J.$eq$(t1.$index(0, "style"), "compressed") ? B.OutputStyle_1 : B.OutputStyle_0;
+              t7 = A._asBool(t1.$index(0, "quiet-deps"));
+              t8 = A._asBool(t1.$index(0, "verbose"));
+              t9 = options.get$emitSourceMap();
+              t1 = A._asBool(t1.$index(0, "charset"));
+              t10 = options.get$silenceDeprecations(0);
+              $async$goto = 14;
+              return A._asyncAwait(A.compileStringAsync(t2, t1, options.get$fatalDeprecations(0), options.get$futureDeprecations(0), importCache, t5, t4, t7, t10, t9, t6, t3, t8), $async$_compileStylesheetWithoutErrorHandling);
+            case 14:
+              // returning from await.
+              result0 = $async$result;
+              // goto join
+              $async$goto = 11;
+              break;
+            case 12:
+              // else
+              t2 = syntax;
+              t3 = A._asBool(t1.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(options.get$color());
+              t4 = J.$eq$(t1.$index(0, "style"), "compressed") ? B.OutputStyle_1 : B.OutputStyle_0;
+              t5 = A._asBool(t1.$index(0, "quiet-deps"));
+              t6 = A._asBool(t1.$index(0, "verbose"));
+              t7 = options.get$emitSourceMap();
+              t1 = A._asBool(t1.$index(0, "charset"));
+              t8 = options.get$silenceDeprecations(0);
+              $async$goto = 15;
+              return A._asyncAwait(A.compileAsync(source, t1, options.get$fatalDeprecations(0), options.get$futureDeprecations(0), importCache, t3, t5, t8, t7, t4, t2, t6), $async$_compileStylesheetWithoutErrorHandling);
+            case 15:
+              // returning from await.
+              result0 = $async$result;
+            case 11:
+              // join
+              result = result0;
+              // goto join
+              $async$goto = 8;
+              break;
+            case 9:
+              // else
+              $async$goto = source == null ? 16 : 18;
+              break;
+            case 16:
+              // then
+              $async$goto = 19;
+              return A._asyncAwait(A.readStdin(), $async$_compileStylesheetWithoutErrorHandling);
+            case 19:
+              // returning from await.
+              t2 = $async$result;
+              t3 = syntax;
+              t4 = A._asBool(t1.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(options.get$color());
+              t5 = $.$get$FilesystemImporter_cwd();
+              t6 = J.$eq$(t1.$index(0, "style"), "compressed") ? B.OutputStyle_1 : B.OutputStyle_0;
+              t7 = A._asBool(t1.$index(0, "quiet-deps"));
+              t8 = A._asBool(t1.$index(0, "verbose"));
+              t9 = options.get$emitSourceMap();
+              t1 = A._asBool(t1.$index(0, "charset"));
+              t10 = options.get$silenceDeprecations(0);
+              t11 = options.get$fatalDeprecations(0);
+              t12 = options.get$futureDeprecations(0);
+              t13 = type$.Deprecation;
+              t14 = A.LinkedHashSet_LinkedHashSet$_empty(t13);
+              t14.addAll$1(0, t10);
+              t10 = A.LinkedHashSet_LinkedHashSet$_empty(t13);
+              t10.addAll$1(0, t11);
+              t11 = A.LinkedHashSet_LinkedHashSet$_empty(t13);
+              t11.addAll$1(0, t12);
+              logger = A.DeprecationProcessingLogger$(t4, t10, t11, !t8, t14);
+              stylesheet = A.Stylesheet_Stylesheet$parse(t2, t3 == null ? B.Syntax_SCSS_scss : t3, logger, null);
+              result0 = A._compileStylesheet(stylesheet, logger, graph.importCache, null, t5, null, t6, true, null, null, t7, t9, t1);
+              logger.summarize$1$js(false);
+              // goto join
+              $async$goto = 17;
+              break;
+            case 18:
+              // else
+              t2 = syntax;
+              t3 = A._asBool(t1.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(options.get$color());
+              importCache = graph.importCache;
+              t4 = J.$eq$(t1.$index(0, "style"), "compressed") ? B.OutputStyle_1 : B.OutputStyle_0;
+              t5 = A._asBool(t1.$index(0, "quiet-deps"));
+              t6 = A._asBool(t1.$index(0, "verbose"));
+              t7 = options.get$emitSourceMap();
+              t1 = A._asBool(t1.$index(0, "charset"));
+              t8 = options.get$silenceDeprecations(0);
+              t9 = options.get$fatalDeprecations(0);
+              t10 = options.get$futureDeprecations(0);
+              t11 = type$.Deprecation;
+              t12 = A.LinkedHashSet_LinkedHashSet$_empty(t11);
+              t12.addAll$1(0, t8);
+              t8 = A.LinkedHashSet_LinkedHashSet$_empty(t11);
+              t8.addAll$1(0, t9);
+              t9 = A.LinkedHashSet_LinkedHashSet$_empty(t11);
+              t9.addAll$1(0, t10);
+              logger = A.DeprecationProcessingLogger$(t3, t8, t9, !t6, t12);
+              t3 = t2 == null || t2 === A.Syntax_forPath(source);
+              if (t3) {
+                t2 = $.$get$FilesystemImporter_cwd();
+                t3 = A.isNodeJs() ? self.process : null;
+                if (!J.$eq$(t3 == null ? null : J.get$platform$x(t3), "win32")) {
+                  t3 = A.isNodeJs() ? self.process : null;
+                  t3 = J.$eq$(t3 == null ? null : J.get$platform$x(t3), "darwin");
+                } else
+                  t3 = true;
+                if (t3) {
+                  t3 = $.$get$context();
+                  t6 = A._realCasePath(A.absolute(t3.normalize$1(source), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                  t0 = t6;
+                  t6 = t3;
+                  t3 = t0;
+                } else {
+                  t3 = $.$get$context();
+                  t6 = t3.canonicalize$1(0, source);
+                  t0 = t6;
+                  t6 = t3;
+                  t3 = t0;
+                }
+                t6 = importCache.importCanonical$3$originalUrl(t2, t6.toUri$1(t3), t6.toUri$1(source));
+                t6.toString;
+                stylesheet = t6;
+              } else {
+                t3 = A.readFile(source);
+                if (t2 == null)
+                  t2 = A.Syntax_forPath(source);
+                stylesheet = A.Stylesheet_Stylesheet$parse(t3, t2, logger, $.$get$context().toUri$1(source));
+              }
+              result0 = A._compileStylesheet(stylesheet, logger, importCache, null, $.$get$FilesystemImporter_cwd(), null, t4, true, null, null, t5, t7, t1);
+              logger.summarize$1$js(false);
+            case 17:
+              // join
+              result = result0;
+            case 8:
+              // join
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException) {
+                error = t1;
+                if (options.get$emitErrorCss())
+                  if (destination == null)
+                    A.print(error.toCssString$0());
+                  else {
+                    A.ensureDir($.$get$context().dirname$1(destination));
+                    A.writeFile(destination, error.toCssString$0() + "\n");
+                  }
+                throw $async$exception;
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+              css = result._serialize._0 + A._writeSourceMap(options, result._serialize._1, destination);
+              if (destination == null) {
+                if (css.length !== 0)
+                  A.print(css);
+              } else {
+                A.ensureDir($.$get$context().dirname$1(destination));
+                A.writeFile(destination, css + "\n");
+              }
+              t1 = options._options;
+              if (!A._asBool(t1.$index(0, "quiet")))
+                t1 = !A._asBool(t1.$index(0, "update")) && !A._asBool(t1.$index(0, "watch"));
+              else
+                t1 = true;
+              if (t1) {
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              buffer = new A.StringBuffer("");
+              if (source == null)
+                sourceName = "stdin";
+              else {
+                t1 = $.$get$context();
+                sourceName = t1.prettyUri$1(t1.toUri$1(source));
+              }
+              destination.toString;
+              t1 = $.$get$context();
+              destinationName = t1.prettyUri$1(t1.toUri$1(destination));
+              nowStr = new A.DateTime(Date.now(), false).toString$0(0);
+              timestamp = B.JSString_methods.substring$2(nowStr, 0, nowStr.length - 7);
+              t1 = options.get$color() ? buffer._contents = "" + "\x1b[90m" : "";
+              t1 = buffer._contents = t1 + ("[" + timestamp + "] ");
+              if (options.get$color())
+                t1 = buffer._contents = t1 + "\x1b[32m";
+              t1 += "Compiled " + sourceName + " to " + destinationName + ".";
+              buffer._contents = t1;
+              if (options.get$color())
+                buffer._contents = t1 + "\x1b[0m";
+              t1 = A.isNodeJs() ? self.process : null;
+              if (t1 != null) {
+                t1 = J.get$stdout$x(t1);
+                J.write$1$x(t1, buffer.toString$0(0) + "\n");
+              } else {
+                t1 = self.console;
+                J.log$1$x(t1, buffer);
+              }
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_compileStylesheetWithoutErrorHandling, $async$completer);
+    },
+    _writeSourceMap(options, sourceMap, destination) {
+      var t1, sourceMapText, url, sourceMapPath, t2, escapedUrl;
+      if (sourceMap == null)
+        return "";
+      if (destination != null) {
+        t1 = $.$get$context();
+        sourceMap.targetUrl = t1.toUri$1(A.ParsedPath_ParsedPath$parse(destination, t1.style).get$basename()).toString$0(0);
+      }
+      A.mapInPlace(sourceMap.urls, new A._writeSourceMap_closure(options, destination));
+      t1 = options._options;
+      sourceMapText = B.C_JsonCodec.encode$2$toEncodable(sourceMap.toJson$1$includeSourceContents(A._asBool(t1.$index(0, "embed-sources"))), null);
+      if (A._asBool(t1.$index(0, "embed-source-map")))
+        url = A.Uri_Uri$dataFromString(sourceMapText, B.C_Utf8Codec, "application/json");
+      else {
+        destination.toString;
+        sourceMapPath = destination + ".map";
+        t2 = $.$get$context();
+        A.ensureDir(t2.dirname$1(sourceMapPath));
+        A.writeFile(sourceMapPath, sourceMapText);
+        url = t2.toUri$1(t2.relative$2$from(sourceMapPath, t2.dirname$1(destination)));
+      }
+      t2 = url.toString$0(0);
+      escapedUrl = A.stringReplaceAllUnchecked(t2, "*/", "%2A/");
+      t1 = (J.$eq$(t1.$index(0, "style"), "compressed") ? B.OutputStyle_1 : B.OutputStyle_0) === B.OutputStyle_1 ? "" : "\n\n";
+      return t1 + ("/*# sourceMappingURL=" + escapedUrl + " */");
+    },
+    _tryDelete(path) {
+      var exception;
+      try {
+        A.deleteFile(path);
+      } catch (exception) {
+        if (!(A.unwrapException(exception) instanceof A.FileSystemException))
+          throw exception;
+      }
+    },
+    _getErrorWithStackTrace(exitCode, error, stackTrace) {
+      return new A._Record_3(exitCode, error, stackTrace != null ? B.JSString_methods.trimRight$0(A.Trace_Trace$from(stackTrace).get$terse().toString$0(0)) : null);
+    },
+    _writeSourceMap_closure: function _writeSourceMap_closure(t0, t1) {
+      this.options = t0;
+      this.destination = t1;
+    },
+    ExecutableOptions__separator(text) {
+      var t1 = $.$get$ExecutableOptions__separatorBar(),
+        t2 = B.JSString_methods.$mul(t1, 3),
+        t3 = A.hasTerminal() ? "\x1b[1m" : "",
+        t4 = A.hasTerminal() ? "\x1b[0m" : "";
+      return t2 + " " + t3 + text + t4 + " " + B.JSString_methods.$mul(t1, 35 - text.length);
+    },
+    ExecutableOptions__fail(message) {
+      return A.throwExpression(A.UsageException$(message));
+    },
+    ExecutableOptions_ExecutableOptions$parse(args) {
+      var options, error, t1, t2, exception;
+      try {
+        t1 = $.$get$ExecutableOptions__parser();
+        t2 = A.ListQueue$(type$.String);
+        t2.addAll$1(0, args);
+        t2 = A.Parser$(null, t1, t2, null, null).parse$0();
+        if (t2.wasParsed$1("poll") && !A._asBool(t2.$index(0, "watch")))
+          A.ExecutableOptions__fail("--poll may not be passed without --watch.");
+        options = new A.ExecutableOptions(t2);
+        if (A._asBool(options._options.$index(0, "help")))
+          A.ExecutableOptions__fail("Compile Sass to CSS.");
+        return options;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.FormatException._is(t1)) {
+          error = t1;
+          A.ExecutableOptions__fail(J.get$message$x(error));
+        } else
+          throw exception;
+      }
+    },
+    UsageException$(message) {
+      return new A.UsageException(message);
+    },
+    ExecutableOptions: function ExecutableOptions(t0) {
+      var _ = this;
+      _._options = t0;
+      _.__ExecutableOptions_interactive_FI = $;
+      _._sourcesToDestinations = null;
+      _.__ExecutableOptions__sourceDirectoriesToDestinations_F = $;
+      _._fatalDeprecations = null;
+    },
+    ExecutableOptions__parser_closure: function ExecutableOptions__parser_closure() {
+    },
+    ExecutableOptions_interactive_closure: function ExecutableOptions_interactive_closure(t0) {
+      this.$this = t0;
+    },
+    ExecutableOptions_emitErrorCss_closure: function ExecutableOptions_emitErrorCss_closure() {
+    },
+    ExecutableOptions_fatalDeprecations_closure: function ExecutableOptions_fatalDeprecations_closure(t0) {
+      this.$this = t0;
+    },
+    UsageException: function UsageException(t0) {
+      this.message = t0;
+    },
+    watch(options, graph) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, t1, t2, t3, t4, t5, t6, dirWatcher, sourcesToDestinations, t0;
+      var $async$watch = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              options._ensureSources$0();
+              t1 = options.__ExecutableOptions__sourceDirectoriesToDestinations_F;
+              t1 === $ && A.throwUnnamedLateFieldNI();
+              t2 = type$.String;
+              t1 = t1.cast$2$0(0, t2, t2);
+              t1 = A.List_List$of(t1.get$keys(t1), true, t2);
+              for (options._ensureSources$0(), t3 = options._sourcesToDestinations.cast$2$0(0, t2, t2), t3 = J.get$iterator$ax(t3.get$keys(t3)); t3.moveNext$0();) {
+                t4 = t3.get$current(t3);
+                t1.push($.$get$context().dirname$1(t4));
+              }
+              t3 = options._options;
+              B.JSArray_methods.addAll$1(t1, type$.List_String._as(t3.$index(0, "load-path")));
+              t4 = A._asBool(t3.$index(0, "poll"));
+              t5 = type$.Stream_WatchEvent;
+              t6 = A.PathMap__create(null, t5);
+              t5 = new A.StreamGroup(B._StreamGroupState_dormant, A.LinkedHashMap_LinkedHashMap$_empty(t5, type$.nullable_StreamSubscription_WatchEvent), type$.StreamGroup_WatchEvent);
+              t5.__StreamGroup__controller_A = A.StreamController_StreamController(t5.get$_onCancel(), t5.get$_onListen(), t5.get$_onPause(), t5.get$_onResume(), true, type$.WatchEvent);
+              dirWatcher = new A.MultiDirWatcher(new A.PathMap(t6, type$.PathMap_Stream_WatchEvent), t5, t4);
+              $async$goto = 3;
+              return A._asyncAwait(A.Future_wait(new A.MappedListIterable(t1, new A.watch_closure(dirWatcher), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Future<~>>")), false, type$.void), $async$watch);
+            case 3:
+              // returning from await.
+              options._ensureSources$0();
+              sourcesToDestinations = options._sourcesToDestinations.cast$2$0(0, t2, t2);
+              for (t1 = J.get$iterator$ax(sourcesToDestinations.get$keys(sourcesToDestinations)); t1.moveNext$0();) {
+                t2 = t1.get$current(t1);
+                t4 = $.$get$FilesystemImporter_cwd();
+                t5 = self.process;
+                if (t5 == null)
+                  t5 = null;
+                else {
+                  t5 = J.get$release$x(t5);
+                  t5 = t5 == null ? null : J.get$name$x(t5);
+                }
+                t5 = J.$eq$(t5, "node") ? self.process : null;
+                if (!J.$eq$(t5 == null ? null : J.get$platform$x(t5), "win32")) {
+                  t5 = self.process;
+                  if (t5 == null)
+                    t5 = null;
+                  else {
+                    t5 = J.get$release$x(t5);
+                    t5 = t5 == null ? null : J.get$name$x(t5);
+                  }
+                  t5 = J.$eq$(t5, "node") ? self.process : null;
+                  t5 = J.$eq$(t5 == null ? null : J.get$platform$x(t5), "darwin");
+                } else
+                  t5 = true;
+                if (t5) {
+                  t5 = $.$get$context();
+                  t6 = A._realCasePath(t5.absolute$15(t5.normalize$1(t2), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                  t0 = t6;
+                  t6 = t5;
+                  t5 = t0;
+                } else {
+                  t5 = $.$get$context();
+                  t6 = t5.canonicalize$1(0, t2);
+                  t0 = t6;
+                  t6 = t5;
+                  t5 = t0;
+                }
+                graph.addCanonical$4$recanonicalize(t4, t6.toUri$1(t5), t6.toUri$1(t2), false);
+              }
+              $async$goto = 4;
+              return A._asyncAwait(A.compileStylesheets(options, graph, sourcesToDestinations, true), $async$watch);
+            case 4:
+              // returning from await.
+              if (!$async$result && A._asBool(t3.$index(0, "stop-on-error"))) {
+                t1 = dirWatcher._group.__StreamGroup__controller_A;
+                t1 === $ && A.throwUnnamedLateFieldNI();
+                new A._ControllerStream(t1, A._instanceType(t1)._eval$1("_ControllerStream<1>")).listen$1(0, null).cancel$0();
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              A.print("Sass is watching for changes. Press Ctrl-C to stop.\n");
+              $async$goto = 5;
+              return A._asyncAwait(new A._Watcher(options, graph).watch$1(0, dirWatcher), $async$watch);
+            case 5:
+              // returning from await.
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$watch, $async$completer);
+    },
+    watch_closure: function watch_closure(t0) {
+      this.dirWatcher = t0;
+    },
+    _Watcher: function _Watcher(t0, t1) {
+      this._watch$_options = t0;
+      this._graph = t1;
+    },
+    _Watcher__debounceEvents_closure: function _Watcher__debounceEvents_closure() {
+    },
+    EmptyExtensionStore: function EmptyExtensionStore() {
+    },
+    Extension: function Extension(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.extender = t0;
+      _.target = t1;
+      _.mediaContext = t2;
+      _.isOptional = t3;
+      _.span = t4;
+    },
+    Extender: function Extender(t0, t1) {
+      this.selector = t0;
+      this.isOriginal = t1;
+      this._extension = null;
+    },
+    ExtensionStore__extendOrReplace(selector, source, targets, mode, span) {
+      var t1, t2, t3, t4, t5, t6, t7, t8, _i, complex, compound, t9, t10, t11, _i0, simple, t12, _i1, t13, t14,
+        extender = A.ExtensionStore$_mode(mode);
+      if (!selector.accept$1(B._IsInvisibleVisitor_true))
+        extender._originals.addAll$1(0, selector.components);
+      for (t1 = targets.components, t2 = t1.length, t3 = source.components, t4 = t3.length, t5 = type$.ComplexSelector, t6 = type$.Extension, t7 = type$.SimpleSelector, t8 = type$.Map_ComplexSelector_Extension, _i = 0; _i < t2; ++_i) {
+        complex = t1[_i];
+        compound = complex.get$singleCompound();
+        if (compound == null)
+          throw A.wrapException(A.SassScriptException$("Can't extend complex selector " + A.S(complex) + ".", null));
+        t9 = A.LinkedHashMap_LinkedHashMap$_empty(t7, t8);
+        for (t10 = compound.components, t11 = t10.length, _i0 = 0; _i0 < t11; ++_i0) {
+          simple = t10[_i0];
+          t12 = A.LinkedHashMap_LinkedHashMap$_empty(t5, t6);
+          for (_i1 = 0; _i1 < t4; ++_i1) {
+            complex = t3[_i1];
+            complex.get$specificity();
+            t13 = new A.Extender(complex, false);
+            t14 = new A.Extension(t13, simple, null, true, span);
+            t13._extension = t14;
+            t12.$indexSet(0, complex, t14);
+          }
+          t9.$indexSet(0, simple, t12);
+        }
+        selector = extender._extendList$2(selector, t9);
+      }
+      return selector;
+    },
+    ExtensionStore$() {
+      var t1 = type$.SimpleSelector;
+      return new A.ExtensionStore(A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Set_ModifiableBox_SelectorList), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Map_ComplexSelector_Extension), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.List_Extension), A.LinkedHashMap_LinkedHashMap$_empty(type$.ModifiableBox_SelectorList, type$.List_CssMediaQuery), new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_SimpleSelector_int), new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_ComplexSelector), B.ExtendMode_normal_normal);
+    },
+    ExtensionStore$_mode(_mode) {
+      var t1 = type$.SimpleSelector;
+      return new A.ExtensionStore(A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Set_ModifiableBox_SelectorList), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Map_ComplexSelector_Extension), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.List_Extension), A.LinkedHashMap_LinkedHashMap$_empty(type$.ModifiableBox_SelectorList, type$.List_CssMediaQuery), new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_SimpleSelector_int), new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_ComplexSelector), _mode);
+    },
+    ExtensionStore: function ExtensionStore(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._selectors = t0;
+      _._extensions = t1;
+      _._extensionsByExtender = t2;
+      _._mediaContexts = t3;
+      _._sourceSpecificity = t4;
+      _._originals = t5;
+      _._mode = t6;
+    },
+    ExtensionStore_extensionsWhereTarget_closure: function ExtensionStore_extensionsWhereTarget_closure() {
+    },
+    ExtensionStore__registerSelector_closure: function ExtensionStore__registerSelector_closure() {
+    },
+    ExtensionStore_addExtension_closure: function ExtensionStore_addExtension_closure() {
+    },
+    ExtensionStore_addExtension_closure0: function ExtensionStore_addExtension_closure0() {
+    },
+    ExtensionStore_addExtension_closure1: function ExtensionStore_addExtension_closure1(t0) {
+      this.complex = t0;
+    },
+    ExtensionStore__extendExistingExtensions_closure: function ExtensionStore__extendExistingExtensions_closure() {
+    },
+    ExtensionStore__extendExistingExtensions_closure0: function ExtensionStore__extendExistingExtensions_closure0() {
+    },
+    ExtensionStore_addExtensions_closure: function ExtensionStore_addExtensions_closure() {
+    },
+    ExtensionStore__extendComplex_closure: function ExtensionStore__extendComplex_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.complex = t2;
+    },
+    ExtensionStore__extendComplex__closure: function ExtensionStore__extendComplex__closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.complex = t2;
+    },
+    ExtensionStore__extendCompound_closure: function ExtensionStore__extendCompound_closure() {
+    },
+    ExtensionStore__extendCompound_closure0: function ExtensionStore__extendCompound_closure0() {
+    },
+    ExtensionStore__extendCompound_closure1: function ExtensionStore__extendCompound_closure1(t0) {
+      this.original = t0;
+    },
+    ExtensionStore__extendSimple_withoutPseudo: function ExtensionStore__extendSimple_withoutPseudo(t0, t1, t2) {
+      this.$this = t0;
+      this.extensions = t1;
+      this.targetsUsed = t2;
+    },
+    ExtensionStore__extendSimple_closure: function ExtensionStore__extendSimple_closure(t0, t1) {
+      this.$this = t0;
+      this.withoutPseudo = t1;
+    },
+    ExtensionStore__extendSimple_closure0: function ExtensionStore__extendSimple_closure0() {
+    },
+    ExtensionStore__extendPseudo_closure: function ExtensionStore__extendPseudo_closure() {
+    },
+    ExtensionStore__extendPseudo_closure0: function ExtensionStore__extendPseudo_closure0() {
+    },
+    ExtensionStore__extendPseudo_closure1: function ExtensionStore__extendPseudo_closure1() {
+    },
+    ExtensionStore__extendPseudo_closure2: function ExtensionStore__extendPseudo_closure2(t0) {
+      this.pseudo = t0;
+    },
+    ExtensionStore__extendPseudo_closure3: function ExtensionStore__extendPseudo_closure3(t0, t1) {
+      this.pseudo = t0;
+      this.selector = t1;
+    },
+    ExtensionStore__trim_closure: function ExtensionStore__trim_closure(t0, t1) {
+      this._box_0 = t0;
+      this.complex1 = t1;
+    },
+    ExtensionStore__trim_closure0: function ExtensionStore__trim_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.complex1 = t1;
+    },
+    ExtensionStore_clone_closure: function ExtensionStore_clone_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.newSelectors = t1;
+      _.oldToNewSelectors = t2;
+      _.newMediaContexts = t3;
+    },
+    unifyComplex(complexes, span) {
+      var t2, trailingCombinator, leadingCombinator, unifiedBase, t3, t4, _0_6_isSet, _0_6, t5, newLeadingCombinator, base, _1_1, newTrailingCombinator, _i, t6, t7, t8, _null = null,
+        t1 = J.getInterceptor$asx(complexes);
+      if (t1.get$length(complexes) === 1)
+        return complexes;
+      for (t2 = t1.get$iterator(complexes), trailingCombinator = _null, leadingCombinator = trailingCombinator, unifiedBase = leadingCombinator; t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        if (t3.accept$1(B.C__IsUselessVisitor))
+          return _null;
+        t4 = t3.components;
+        _0_6_isSet = t4.length === 1;
+        if (_0_6_isSet) {
+          _0_6 = t3.leadingCombinators;
+          t5 = _0_6.length === 1;
+        } else {
+          _0_6 = _null;
+          t5 = false;
+        }
+        if (t5) {
+          newLeadingCombinator = (_0_6_isSet ? _0_6 : t3.leadingCombinators)[0];
+          if (leadingCombinator == null)
+            leadingCombinator = newLeadingCombinator;
+          else if (!(leadingCombinator.$ti._is(newLeadingCombinator) && J.$eq$(newLeadingCombinator.value, leadingCombinator.value)))
+            return _null;
+        }
+        base = B.JSArray_methods.get$last(t4);
+        _1_1 = base.combinators;
+        if (_1_1.length === 1) {
+          newTrailingCombinator = _1_1[0];
+          if (trailingCombinator != null)
+            t3 = !(trailingCombinator.$ti._is(newTrailingCombinator) && J.$eq$(newTrailingCombinator.value, trailingCombinator.value));
+          else
+            t3 = false;
+          if (t3)
+            return _null;
+          trailingCombinator = newTrailingCombinator;
+        }
+        if (unifiedBase == null)
+          unifiedBase = base.selector.components;
+        else
+          for (t3 = base.selector.components, t4 = t3.length, _i = 0; _i < t4; ++_i) {
+            unifiedBase = t3[_i].unify$1(unifiedBase);
+            if (unifiedBase == null)
+              return _null;
+          }
+      }
+      t2 = type$.JSArray_ComplexSelector;
+      t3 = A._setArrayType([], t2);
+      for (t4 = t1.get$iterator(complexes); t4.moveNext$0();) {
+        t5 = t4.get$current(t4);
+        t6 = t5.components;
+        t7 = t6.length;
+        if (t7 > 1) {
+          t8 = t5.leadingCombinators;
+          t3.push(A.ComplexSelector$(t8, B.JSArray_methods.take$1(t6, t7 - 1), t5.span, t5.lineBreak));
+        }
+      }
+      t4 = leadingCombinator == null ? B.List_empty1 : A._setArrayType([leadingCombinator], type$.JSArray_CssValue_Combinator);
+      unifiedBase.toString;
+      t5 = A.CompoundSelector$(unifiedBase, span);
+      t6 = trailingCombinator == null ? B.List_empty1 : A._setArrayType([trailingCombinator], type$.JSArray_CssValue_Combinator);
+      base = A.ComplexSelector$(t4, A._setArrayType([new A.ComplexSelectorComponent(t5, A.List_List$unmodifiable(t6, type$.CssValue_Combinator), span)], type$.JSArray_ComplexSelectorComponent), span, t1.any$1(complexes, new A.unifyComplex_closure()));
+      if (t3.length === 0)
+        t1 = A._setArrayType([base], t2);
+      else {
+        t1 = A.List_List$of(A.IterableExtension_get_exceptLast(t3), true, type$.ComplexSelector);
+        t1.push(B.JSArray_methods.get$last(t3).concatenate$2(base, span));
+      }
+      return A.weave(t1, span, false);
+    },
+    unifyCompound(compound1, compound2) {
+      var t1, t2, _i, unified,
+        result = compound2.components;
+      for (t1 = compound1.components, t2 = t1.length, _i = 0; _i < t2; ++_i, result = unified) {
+        unified = t1[_i].unify$1(result);
+        if (unified == null)
+          return null;
+      }
+      return A.CompoundSelector$(result, compound1.span);
+    },
+    unifyUniversalAndElement(selector1, selector2) {
+      var namespace, $name, t1,
+        _0_0 = A._namespaceAndName(selector1, "selector1"),
+        namespace1 = _0_0._0,
+        name1 = _0_0._1,
+        _1_0 = A._namespaceAndName(selector2, "selector2"),
+        namespace2 = _1_0._0,
+        name2 = _1_0._1;
+      if (namespace1 == namespace2 || namespace2 === "*")
+        namespace = namespace1;
+      else {
+        if (namespace1 !== "*")
+          return null;
+        namespace = namespace2;
+      }
+      if (name1 == name2 || name2 == null)
+        $name = name1;
+      else {
+        if (!(name1 == null || name1 === "*"))
+          return null;
+        $name = name2;
+      }
+      t1 = selector1.span;
+      return $name == null ? new A.UniversalSelector(namespace, t1) : new A.TypeSelector(new A.QualifiedName($name, namespace), t1);
+    },
+    _namespaceAndName(selector, $name) {
+      var t1, _0_4;
+      $label0$0: {
+        if (selector instanceof A.UniversalSelector) {
+          t1 = new A._Record_2(selector.namespace, null);
+          break $label0$0;
+        }
+        if (selector instanceof A.TypeSelector) {
+          _0_4 = selector.name;
+          t1 = new A._Record_2(_0_4.namespace, _0_4.name);
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.ArgumentError$value(selector, $name, string$.must_b));
+      }
+      return t1;
+    },
+    weave(complexes, span, forceLineBreak) {
+      var complex, t2, prefixes, t3, t4, t5, t6, i, t7, t8, _i, t9, t10, _i0, parentPrefix, t11, t12,
+        t1 = J.getInterceptor$asx(complexes);
+      if (t1.get$length(complexes) === 1) {
+        complex = t1.$index(complexes, 0);
+        if (!forceLineBreak || complex.lineBreak)
+          return complexes;
+        return A._setArrayType([A.ComplexSelector$(complex.leadingCombinators, complex.components, complex.span, true)], type$.JSArray_ComplexSelector);
+      }
+      t2 = type$.JSArray_ComplexSelector;
+      prefixes = A._setArrayType([t1.get$first(complexes)], t2);
+      for (t1 = t1.skip$1(complexes, 1), t3 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t3._eval$1("ListIterator<ListIterable.E>")), t4 = type$.ComplexSelectorComponent, t3 = t3._eval$1("ListIterable.E"); t1.moveNext$0();) {
+        t5 = t1.__internal$_current;
+        if (t5 == null)
+          t5 = t3._as(t5);
+        t6 = t5.components;
+        if (t6.length === 1) {
+          for (i = 0; i < prefixes.length; ++i)
+            prefixes[i] = prefixes[i].concatenate$3$forceLineBreak(t5, span, forceLineBreak);
+          continue;
+        }
+        t7 = A._setArrayType([], t2);
+        for (t8 = prefixes.length, _i = 0; _i < prefixes.length; prefixes.length === t8 || (0, A.throwConcurrentModificationError)(prefixes), ++_i) {
+          t9 = A._weaveParents(prefixes[_i], t5, span);
+          if (t9 == null)
+            t9 = B.List_empty2;
+          t10 = t9.length;
+          _i0 = 0;
+          for (; _i0 < t9.length; t9.length === t10 || (0, A.throwConcurrentModificationError)(t9), ++_i0) {
+            parentPrefix = t9[_i0];
+            t11 = B.JSArray_methods.get$last(t6);
+            t12 = A.List_List$of(parentPrefix.components, true, t4);
+            t12.push(t11);
+            t11 = parentPrefix.lineBreak || forceLineBreak;
+            t7.push(A.ComplexSelector$(parentPrefix.leadingCombinators, t12, span, t11));
+          }
+        }
+        prefixes = t7;
+      }
+      return prefixes;
+    },
+    _weaveParents(prefix, base, span) {
+      var t1, queue1, queue2, trailingCombinators, _0_1, _0_3, _0_3_isSet, rootish1, t2, rootish2, _0_30, rootish, t3, rootish_case_0, t0, rootish_case_1, groups1, groups2, lcs, choices, t4, _i, group, t5, t6, t7, _i0, chunk, t8, t9, _null = null,
+        leadingCombinators = A._mergeLeadingCombinators(prefix.leadingCombinators, base.leadingCombinators);
+      if (leadingCombinators == null)
+        return _null;
+      t1 = type$.ComplexSelectorComponent;
+      queue1 = A.QueueList_QueueList$from(prefix.components, t1);
+      queue2 = A.QueueList_QueueList$from(A.IterableExtension_get_exceptLast(base.components), t1);
+      trailingCombinators = A._mergeTrailingCombinators(queue1, queue2, span, _null);
+      if (trailingCombinators == null)
+        return _null;
+      $label0$0: {
+        _0_1 = A._firstIfRootish(queue1);
+        _0_3 = A._firstIfRootish(queue2);
+        _0_3_isSet = _0_1 != null;
+        if (_0_3_isSet) {
+          rootish1 = _0_1 == null ? t1._as(_0_1) : _0_1;
+          t2 = _0_3 != null;
+          if (t2)
+            rootish2 = _0_3 == null ? t1._as(_0_3) : _0_3;
+          else
+            rootish2 = _null;
+          _0_30 = _0_3;
+        } else {
+          rootish2 = _null;
+          rootish1 = rootish2;
+          _0_30 = rootish1;
+          t2 = false;
+        }
+        if (t2) {
+          rootish = A.unifyCompound(rootish1.selector, rootish2.selector);
+          if (rootish == null)
+            return _null;
+          t1 = rootish1.combinators;
+          t2 = rootish1.span;
+          t3 = type$.CssValue_Combinator;
+          queue1.addFirst$1(new A.ComplexSelectorComponent(rootish, A.List_List$unmodifiable(t1, t3), t2));
+          queue2.addFirst$1(new A.ComplexSelectorComponent(rootish, A.List_List$unmodifiable(rootish2.combinators, t3), t2));
+          break $label0$0;
+        }
+        if (_0_1 != null) {
+          rootish_case_0 = _0_1;
+          if (_0_3_isSet)
+            t2 = _0_30;
+          else {
+            t2 = _0_3;
+            _0_30 = t2;
+            _0_3_isSet = true;
+          }
+          t2 = t2 == null;
+          t3 = t2 ? rootish_case_0 : _null;
+          t0 = t3;
+          t3 = t2;
+          t2 = t0;
+        } else {
+          t2 = _null;
+          t3 = false;
+        }
+        if (!t3)
+          if (_0_1 == null) {
+            if (_0_3_isSet)
+              t3 = _0_30;
+            else {
+              t3 = _0_3;
+              _0_30 = t3;
+              _0_3_isSet = true;
+            }
+            t3 = t3 != null;
+            if (t3) {
+              rootish_case_1 = _0_3_isSet ? _0_30 : _0_3;
+              if (rootish_case_1 == null)
+                rootish_case_1 = t1._as(rootish_case_1);
+              t1 = rootish_case_1;
+            } else
+              t1 = t2;
+            t2 = t3;
+          } else {
+            t1 = t2;
+            t2 = false;
+          }
+        else {
+          t1 = t2;
+          t2 = true;
+        }
+        if (t2) {
+          queue1.addFirst$1(t1);
+          queue2.addFirst$1(t1);
+        }
+      }
+      groups1 = A._groupSelectors(queue1);
+      groups2 = A._groupSelectors(queue2);
+      t1 = type$.List_ComplexSelectorComponent;
+      lcs = A.longestCommonSubsequence(groups2, groups1, new A._weaveParents_closure(span), t1);
+      choices = A._setArrayType([], type$.JSArray_List_Iterable_ComplexSelectorComponent);
+      for (t2 = lcs.length, t3 = type$.JSArray_Iterable_ComplexSelectorComponent, t4 = type$.JSArray_ComplexSelectorComponent, _i = 0; _i < lcs.length; lcs.length === t2 || (0, A.throwConcurrentModificationError)(lcs), ++_i) {
+        group = lcs[_i];
+        t5 = A._setArrayType([], t3);
+        for (t6 = A._chunks(groups1, groups2, new A._weaveParents_closure0(group), t1), t7 = t6.length, _i0 = 0; _i0 < t6.length; t6.length === t7 || (0, A.throwConcurrentModificationError)(t6), ++_i0) {
+          chunk = t6[_i0];
+          t8 = A._setArrayType([], t4);
+          for (t9 = B.JSArray_methods.get$iterator(chunk); t9.moveNext$0();)
+            B.JSArray_methods.addAll$1(t8, t9.get$current(0));
+          t5.push(t8);
+        }
+        choices.push(t5);
+        choices.push(A._setArrayType([group], t3));
+        groups1.removeFirst$0();
+        groups2.removeFirst$0();
+      }
+      t2 = A._setArrayType([], t3);
+      for (t1 = A._chunks(groups1, groups2, new A._weaveParents_closure1(), t1), t3 = t1.length, _i = 0; _i < t1.length; t1.length === t3 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        chunk = t1[_i];
+        t5 = A._setArrayType([], t4);
+        for (t6 = B.JSArray_methods.get$iterator(chunk); t6.moveNext$0();)
+          B.JSArray_methods.addAll$1(t5, t6.get$current(0));
+        t2.push(t5);
+      }
+      choices.push(t2);
+      B.JSArray_methods.addAll$1(choices, trailingCombinators);
+      t1 = A._setArrayType([], type$.JSArray_ComplexSelector);
+      for (t2 = J.get$iterator$ax(A.paths(new A.WhereIterable(choices, new A._weaveParents_closure2(), type$.WhereIterable_List_Iterable_ComplexSelectorComponent), type$.Iterable_ComplexSelectorComponent)), t3 = !prefix.lineBreak, t5 = base.lineBreak; t2.moveNext$0();) {
+        t6 = t2.get$current(t2);
+        t7 = A._setArrayType([], t4);
+        for (t6 = J.get$iterator$ax(t6); t6.moveNext$0();)
+          B.JSArray_methods.addAll$1(t7, t6.get$current(t6));
+        t1.push(A.ComplexSelector$(leadingCombinators, t7, span, !t3 || t5));
+      }
+      return t1;
+    },
+    _firstIfRootish(queue) {
+      var first, t1, t2, _i, simple, t3;
+      if (queue.get$length(0) >= 1) {
+        first = queue.$index(0, 0);
+        for (t1 = first.selector.components, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+          simple = t1[_i];
+          if (simple instanceof A.PseudoSelector)
+            if (simple.isClass)
+              t3 = $._rootishPseudoClasses.contains$1(0, simple.normalizedName);
+            else
+              t3 = false;
+          else
+            t3 = false;
+          if (t3) {
+            queue.removeFirst$0();
+            return first;
+          }
+        }
+      }
+      return null;
+    },
+    _mergeLeadingCombinators(combinators1, combinators2) {
+      var _0_4, t1, _0_7_isSet, _0_7, t2, _0_11_isSet, _0_11, _0_4_isSet, combinators, _null = null;
+      $label0$0: {
+        _0_4 = combinators2;
+        t1 = type$.List_CssValue_Combinator;
+        _0_7_isSet = t1._is(combinators1);
+        if (_0_7_isSet) {
+          _0_7 = combinators1.length;
+          t2 = _0_7;
+          t2 = t2 > 1;
+        } else {
+          _0_7 = _null;
+          t2 = false;
+        }
+        if (!t2) {
+          t2 = _0_4;
+          _0_11_isSet = t1._is(t2);
+          if (_0_11_isSet) {
+            t2 = _0_4;
+            _0_11 = (t2 == null ? t1._as(t2) : t2).length;
+            t2 = _0_11;
+            _0_4_isSet = true;
+            t2 = t2 > 1;
+          } else {
+            _0_11 = _null;
+            _0_4_isSet = true;
+            t2 = false;
+          }
+        } else {
+          _0_11 = _null;
+          _0_4_isSet = true;
+          _0_11_isSet = false;
+          t2 = true;
+        }
+        if (t2) {
+          t1 = _null;
+          break $label0$0;
+        }
+        if (t1._is(combinators1)) {
+          if (_0_7_isSet)
+            t2 = _0_7;
+          else {
+            _0_7 = combinators1.length;
+            t2 = _0_7;
+          }
+          t2 = t2 <= 0;
+          if (t2)
+            if (_0_4_isSet)
+              combinators = _0_4;
+            else {
+              combinators = combinators2;
+              _0_4 = combinators;
+              _0_4_isSet = true;
+            }
+          else
+            combinators = _null;
+        } else {
+          combinators = _null;
+          t2 = false;
+        }
+        if (!t2) {
+          if (_0_4_isSet)
+            t2 = _0_4;
+          else {
+            t2 = combinators2;
+            _0_4 = t2;
+            _0_4_isSet = true;
+          }
+          if (t1._is(t2)) {
+            if (_0_11_isSet)
+              t1 = _0_11;
+            else {
+              t2 = _0_4_isSet ? _0_4 : combinators2;
+              _0_11 = (t2 == null ? t1._as(t2) : t2).length;
+              t1 = _0_11;
+            }
+            t1 = t1 <= 0;
+          } else
+            t1 = false;
+          combinators = combinators1;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = combinators;
+          break $label0$0;
+        }
+        t1 = B.C_ListEquality.equals$2(0, combinators1, combinators2) ? combinators1 : _null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _mergeTrailingCombinators(components1, components2, span, result) {
+      var _0_1, t1, _1_1, t2, t3, _4_1, _4_3, _4_4_isSet, _4_4, _4_5, component1, component2, t4, t5, choices, _2_0, _4_4_isSet0, _4_9, _4_6_isSet, _4_6, _4_7, nextComponents, followingComponents, _4_7_isSet, _4_10_isSet, _4_10, _4_5_isSet, next, following, _3_0, siblingComponents_case_0, t0, siblingComponents_case_1, combinator1, combinator2, unified, combinator_case_0, combinatorComponents_case_0, descendantComponents_case_0, t6, combinator_case_1, descendantComponents_case_1, combinatorComponents_case_1, _null = null;
+      if (result == null)
+        result = A.QueueList$(_null, type$.List_List_ComplexSelectorComponent);
+      $label0$0: {
+        _0_1 = components1.get$length(0);
+        if (_0_1 >= 1) {
+          t1 = components1.$index(0, _0_1 - 1).combinators;
+          break $label0$0;
+        }
+        t1 = B.List_empty1;
+        break $label0$0;
+      }
+      $label1$1: {
+        _1_1 = components2.get$length(0);
+        if (_1_1 >= 1) {
+          t2 = components2.$index(0, _1_1 - 1).combinators;
+          break $label1$1;
+        }
+        t2 = B.List_empty1;
+        break $label1$1;
+      }
+      t3 = t1.length;
+      if (t3 === 0 && t2.length === 0)
+        return result;
+      if (t3 > 1 || t2.length > 1)
+        return _null;
+      $label2$2: {
+        t3 = A.IterableExtension_get_firstOrNull(t1);
+        t3 = t3 == null ? _null : t3.value;
+        t2 = A.IterableExtension_get_firstOrNull(t2);
+        t2 = [t3, t2 == null ? _null : t2.value, components1, components2];
+        _4_1 = t2[0];
+        _4_3 = B.Combinator_y18 === _4_1;
+        _4_4_isSet = _4_3;
+        if (_4_4_isSet) {
+          _4_4 = t2[1];
+          _4_5 = B.Combinator_y18 === _4_4;
+          t3 = _4_5;
+        } else {
+          _4_4 = _null;
+          _4_5 = _4_4;
+          t3 = false;
+        }
+        if (t3) {
+          component1 = components1.removeLast$0(0);
+          component2 = components2.removeLast$0(0);
+          t2 = component1.selector;
+          t3 = component2.selector;
+          if (A.compoundIsSuperselector(t2, t3, _null))
+            result.addFirst$1(A._setArrayType([A._setArrayType([component2], type$.JSArray_ComplexSelectorComponent)], type$.JSArray_List_ComplexSelectorComponent));
+          else {
+            t4 = type$.JSArray_ComplexSelectorComponent;
+            t5 = type$.JSArray_List_ComplexSelectorComponent;
+            if (A.compoundIsSuperselector(t3, t2, _null))
+              result.addFirst$1(A._setArrayType([A._setArrayType([component1], t4)], t5));
+            else {
+              choices = A._setArrayType([A._setArrayType([component1, component2], t4), A._setArrayType([component2, component1], t4)], t5);
+              _2_0 = A.unifyCompound(t2, t3);
+              if (_2_0 != null)
+                choices.push(A._setArrayType([new A.ComplexSelectorComponent(_2_0, A.List_List$unmodifiable(A._setArrayType([B.JSArray_methods.get$first(t1)], type$.JSArray_CssValue_Combinator), type$.CssValue_Combinator), span)], t4));
+              result.addFirst$1(choices);
+            }
+          }
+          break $label2$2;
+        }
+        if (_4_3) {
+          if (_4_4_isSet) {
+            t3 = _4_4;
+            _4_4_isSet0 = _4_4_isSet;
+          } else {
+            _4_4 = t2[1];
+            t3 = _4_4;
+            _4_4_isSet0 = true;
+          }
+          _4_9 = B.Combinator_gRV === t3;
+          _4_6_isSet = _4_9;
+          if (_4_6_isSet) {
+            _4_6 = t2[2];
+            _4_7 = t2[3];
+            nextComponents = _4_7;
+            followingComponents = _4_6;
+          } else {
+            nextComponents = _null;
+            followingComponents = nextComponents;
+            _4_7 = followingComponents;
+            _4_6 = _4_7;
+          }
+          t3 = _4_6_isSet;
+          _4_7_isSet = t3;
+        } else {
+          nextComponents = _null;
+          followingComponents = nextComponents;
+          _4_7 = followingComponents;
+          _4_6 = _4_7;
+          _4_9 = _4_6;
+          _4_4_isSet0 = _4_4_isSet;
+          _4_6_isSet = false;
+          _4_7_isSet = false;
+          t3 = false;
+        }
+        _4_10_isSet = !t3;
+        if (_4_10_isSet) {
+          _4_10 = B.Combinator_gRV === _4_1;
+          t3 = _4_10;
+          if (t3) {
+            if (_4_4_isSet) {
+              t3 = _4_5;
+              _4_5_isSet = _4_4_isSet;
+              _4_4_isSet = _4_4_isSet0;
+            } else {
+              if (_4_4_isSet0) {
+                t3 = _4_4;
+                _4_4_isSet = _4_4_isSet0;
+              } else {
+                _4_4 = t2[1];
+                t3 = _4_4;
+                _4_4_isSet = true;
+              }
+              _4_5 = B.Combinator_y18 === t3;
+              t3 = _4_5;
+              _4_5_isSet = true;
+            }
+            if (t3) {
+              if (_4_6_isSet)
+                nextComponents = _4_6;
+              else {
+                _4_6 = t2[2];
+                nextComponents = _4_6;
+                _4_6_isSet = true;
+              }
+              if (_4_7_isSet)
+                followingComponents = _4_7;
+              else {
+                _4_7 = t2[3];
+                followingComponents = _4_7;
+                _4_7_isSet = true;
+              }
+            }
+          } else {
+            _4_5_isSet = _4_4_isSet;
+            _4_4_isSet = _4_4_isSet0;
+            t3 = false;
+          }
+        } else {
+          _4_10 = _null;
+          _4_5_isSet = _4_4_isSet;
+          _4_4_isSet = _4_4_isSet0;
+          t3 = true;
+        }
+        if (t3) {
+          next = nextComponents.removeLast$0(0);
+          following = followingComponents.removeLast$0(0);
+          t1 = following.selector;
+          t2 = next.selector;
+          t3 = type$.JSArray_ComplexSelectorComponent;
+          t4 = type$.JSArray_List_ComplexSelectorComponent;
+          if (A.compoundIsSuperselector(t1, t2, _null))
+            result.addFirst$1(A._setArrayType([A._setArrayType([next], t3)], t4));
+          else {
+            t4 = A._setArrayType([A._setArrayType([following, next], t3)], t4);
+            _3_0 = A.unifyCompound(t1, t2);
+            if (_3_0 != null)
+              t4.push(A._setArrayType([new A.ComplexSelectorComponent(_3_0, A.List_List$unmodifiable(next.combinators, type$.CssValue_Combinator), span)], t3));
+            result.addFirst$1(t4);
+          }
+          break $label2$2;
+        }
+        if (B.Combinator_8I8 === _4_1) {
+          if (_4_3)
+            t3 = _4_9;
+          else {
+            if (_4_4_isSet)
+              t3 = _4_4;
+            else {
+              _4_4 = t2[1];
+              t3 = _4_4;
+              _4_4_isSet = true;
+            }
+            _4_9 = B.Combinator_gRV === t3;
+            t3 = _4_9;
+          }
+          if (!t3)
+            if (_4_5_isSet)
+              t3 = _4_5;
+            else {
+              if (_4_4_isSet)
+                t3 = _4_4;
+              else {
+                _4_4 = t2[1];
+                t3 = _4_4;
+                _4_4_isSet = true;
+              }
+              _4_5 = B.Combinator_y18 === t3;
+              t3 = _4_5;
+            }
+          else
+            t3 = true;
+          if (t3) {
+            if (_4_7_isSet)
+              siblingComponents_case_0 = _4_7;
+            else {
+              _4_7 = t2[3];
+              siblingComponents_case_0 = _4_7;
+              _4_7_isSet = true;
+            }
+            t4 = siblingComponents_case_0;
+          } else
+            t4 = _null;
+          t0 = t4;
+          t4 = t3;
+          t3 = t0;
+        } else {
+          t3 = _null;
+          t4 = false;
+        }
+        if (!t4) {
+          if (_4_10_isSet)
+            t4 = _4_10;
+          else {
+            _4_10 = B.Combinator_gRV === _4_1;
+            t4 = _4_10;
+          }
+          if (!t4)
+            t4 = _4_3;
+          else
+            t4 = true;
+          if (t4) {
+            if (_4_4_isSet)
+              t4 = _4_4;
+            else {
+              _4_4 = t2[1];
+              t4 = _4_4;
+              _4_4_isSet = true;
+            }
+            t4 = B.Combinator_8I8 === t4;
+            if (t4) {
+              if (_4_6_isSet)
+                siblingComponents_case_1 = _4_6;
+              else {
+                _4_6 = t2[2];
+                siblingComponents_case_1 = _4_6;
+                _4_6_isSet = true;
+              }
+              t3 = siblingComponents_case_1;
+            }
+          } else
+            t4 = false;
+        } else
+          t4 = true;
+        if (t4) {
+          result.addFirst$1(A._setArrayType([A._setArrayType([t3.removeLast$0(0)], type$.JSArray_ComplexSelectorComponent)], type$.JSArray_List_ComplexSelectorComponent));
+          break $label2$2;
+        }
+        t3 = _4_1 == null;
+        t4 = !t3;
+        if (t4) {
+          combinator1 = _4_1;
+          if (_4_4_isSet)
+            t5 = _4_4;
+          else {
+            _4_4 = t2[1];
+            t5 = _4_4;
+            _4_4_isSet = true;
+          }
+          if (t5 != null) {
+            if (_4_4_isSet)
+              combinator2 = _4_4;
+            else {
+              _4_4 = t2[1];
+              combinator2 = _4_4;
+              _4_4_isSet = true;
+            }
+            t5 = combinator1 === (combinator2 == null ? type$.Combinator._as(combinator2) : combinator2);
+          } else
+            t5 = false;
+        } else
+          t5 = false;
+        if (t5) {
+          unified = A.unifyCompound(components1.removeLast$0(0).selector, components2.removeLast$0(0).selector);
+          if (unified == null)
+            return _null;
+          result.addFirst$1(A._setArrayType([A._setArrayType([new A.ComplexSelectorComponent(unified, A.List_List$unmodifiable(A._setArrayType([B.JSArray_methods.get$first(t1)], type$.JSArray_CssValue_Combinator), type$.CssValue_Combinator), span)], type$.JSArray_ComplexSelectorComponent)], type$.JSArray_List_ComplexSelectorComponent));
+          break $label2$2;
+        }
+        if (t4) {
+          combinator_case_0 = _4_1;
+          if (_4_4_isSet)
+            t1 = _4_4;
+          else {
+            _4_4 = t2[1];
+            t1 = _4_4;
+            _4_4_isSet = true;
+          }
+          t1 = t1 == null;
+          if (t1) {
+            if (_4_6_isSet)
+              combinatorComponents_case_0 = _4_6;
+            else {
+              _4_6 = t2[2];
+              combinatorComponents_case_0 = _4_6;
+              _4_6_isSet = true;
+            }
+            if (_4_7_isSet)
+              descendantComponents_case_0 = _4_7;
+            else {
+              _4_7 = t2[3];
+              descendantComponents_case_0 = _4_7;
+              _4_7_isSet = true;
+            }
+            t4 = descendantComponents_case_0;
+            t6 = t4;
+            t4 = combinator_case_0;
+            t5 = combinatorComponents_case_0;
+          } else {
+            t6 = _null;
+            t5 = t6;
+            t4 = t5;
+          }
+          t0 = t6;
+          t6 = t1;
+          t1 = t4;
+          t4 = t5;
+          t5 = t0;
+        } else {
+          t5 = _null;
+          t4 = t5;
+          t1 = t4;
+          t6 = false;
+        }
+        if (!t6)
+          if (t3) {
+            if (_4_4_isSet)
+              t3 = _4_4;
+            else {
+              _4_4 = t2[1];
+              t3 = _4_4;
+              _4_4_isSet = true;
+            }
+            t3 = t3 != null;
+            if (t3) {
+              combinator_case_1 = _4_4_isSet ? _4_4 : t2[1];
+              if (combinator_case_1 == null)
+                combinator_case_1 = type$.Combinator._as(combinator_case_1);
+              descendantComponents_case_1 = _4_6_isSet ? _4_6 : t2[2];
+              combinatorComponents_case_1 = _4_7_isSet ? _4_7 : t2[3];
+              t1 = combinatorComponents_case_1;
+              t2 = descendantComponents_case_1;
+              t4 = t2;
+              t2 = t1;
+              t1 = combinator_case_1;
+            } else {
+              t2 = t4;
+              t4 = t5;
+            }
+            t0 = t4;
+            t4 = t3;
+            t3 = t0;
+          } else {
+            t3 = t5;
+            t2 = t4;
+            t4 = false;
+          }
+        else {
+          t3 = t5;
+          t2 = t4;
+          t4 = true;
+        }
+        if (t4) {
+          if (t1 === B.Combinator_8I8) {
+            t1 = A.IterableExtension_get_lastOrNull(t3);
+            t1 = t1 == null ? _null : A.compoundIsSuperselector(t1.selector, t2.get$last(t2).selector, _null);
+            t1 = t1 === true;
+          } else
+            t1 = false;
+          if (t1)
+            t3.removeLast$0(0);
+          result.addFirst$1(A._setArrayType([A._setArrayType([t2.removeLast$0(0)], type$.JSArray_ComplexSelectorComponent)], type$.JSArray_List_ComplexSelectorComponent));
+          break $label2$2;
+        }
+        return _null;
+      }
+      return A._mergeTrailingCombinators(components1, components2, span, result);
+    },
+    _mustUnify(complex1, complex2) {
+      var t2, t3, t4,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(type$.SimpleSelector);
+      for (t2 = J.get$iterator$ax(complex1); t2.moveNext$0();)
+        for (t3 = B.JSArray_methods.get$iterator(t2.get$current(t2).selector.components), t4 = new A.WhereIterator(t3, A.functions___isUnique$closure()); t4.moveNext$0();)
+          t1.add$1(0, t3.get$current(0));
+      if (t1._collection$_length === 0)
+        return false;
+      return J.any$1$ax(complex2, new A._mustUnify_closure(t1));
+    },
+    _isUnique(simple) {
+      var t1;
+      if (!(simple instanceof A.IDSelector))
+        t1 = simple instanceof A.PseudoSelector && !simple.isClass;
+      else
+        t1 = true;
+      return t1;
+    },
+    _chunks(queue1, queue2, done, $T) {
+      var chunk2, _0_4, _0_5_isSet, _0_1, _0_7, _0_5, chunk, _0_5_isSet0, t2, _null = null,
+        t1 = $T._eval$1("JSArray<0>"),
+        chunk1 = A._setArrayType([], t1);
+      for (; !done.call$1(queue1);)
+        chunk1.push(queue1.removeFirst$0());
+      chunk2 = A._setArrayType([], t1);
+      for (; !done.call$1(queue2);)
+        chunk2.push(queue2.removeFirst$0());
+      $label0$0: {
+        _0_4 = chunk1.length <= 0;
+        _0_5_isSet = _0_4;
+        _0_1 = chunk1;
+        if (_0_5_isSet) {
+          _0_7 = chunk2.length <= 0;
+          t1 = _0_7;
+          _0_5 = chunk2;
+        } else {
+          _0_5 = _null;
+          _0_7 = _0_5;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = A._setArrayType([], $T._eval$1("JSArray<List<0>>"));
+          break $label0$0;
+        }
+        if (_0_4)
+          if (_0_5_isSet) {
+            chunk = _0_5;
+            _0_5_isSet0 = _0_5_isSet;
+          } else {
+            chunk = chunk2;
+            _0_5 = chunk;
+            _0_5_isSet0 = true;
+          }
+        else {
+          chunk = _null;
+          _0_5_isSet0 = _0_5_isSet;
+        }
+        if (!_0_4) {
+          if (_0_5_isSet)
+            t1 = _0_7;
+          else {
+            _0_7 = (_0_5_isSet0 ? _0_5 : chunk2).length <= 0;
+            t1 = _0_7;
+          }
+          chunk = _0_1;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = A._setArrayType([chunk], $T._eval$1("JSArray<List<0>>"));
+          break $label0$0;
+        }
+        t1 = A.List_List$of(chunk1, true, $T);
+        B.JSArray_methods.addAll$1(t1, chunk2);
+        t2 = A.List_List$of(chunk2, true, $T);
+        B.JSArray_methods.addAll$1(t2, chunk1);
+        t2 = A._setArrayType([t1, t2], $T._eval$1("JSArray<List<0>>"));
+        t1 = t2;
+        break $label0$0;
+      }
+      return t1;
+    },
+    paths(choices, $T) {
+      return J.fold$2$ax(choices, A._setArrayType([A._setArrayType([], $T._eval$1("JSArray<0>"))], $T._eval$1("JSArray<List<0>>")), new A.paths_closure($T));
+    },
+    _groupSelectors(complex) {
+      var t2, t3, t4,
+        groups = A.QueueList$(null, type$.List_ComplexSelectorComponent),
+        t1 = type$.JSArray_ComplexSelectorComponent,
+        group = A._setArrayType([], t1);
+      for (t2 = complex.$ti, t3 = new A.ListIterator(complex, complex.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t3.moveNext$0();) {
+        t4 = t3.__internal$_current;
+        if (t4 == null)
+          t4 = t2._as(t4);
+        group.push(t4);
+        if (t4.combinators.length === 0) {
+          groups._queue_list$_add$1(group);
+          group = A._setArrayType([], t1);
+        }
+      }
+      if (group.length !== 0)
+        groups._queue_list$_add$1(group);
+      return groups;
+    },
+    listIsSuperselector(list1, list2) {
+      return B.JSArray_methods.every$1(list2, new A.listIsSuperselector_closure(list1));
+    },
+    _complexIsParentSuperselector(complex1, complex2) {
+      var t1, base, t2;
+      if (J.get$length$asx(complex1) > J.get$length$asx(complex2))
+        return false;
+      t1 = $.$get$bogusSpan();
+      base = new A.ComplexSelectorComponent(A.CompoundSelector$(A._setArrayType([new A.PlaceholderSelector("<temp>", t1)], type$.JSArray_SimpleSelector), t1), A.List_List$unmodifiable(B.List_empty1, type$.CssValue_Combinator), t1);
+      t1 = type$.ComplexSelectorComponent;
+      t2 = A.List_List$of(complex1, true, t1);
+      t2.push(base);
+      t1 = A.List_List$of(complex2, true, t1);
+      t1.push(base);
+      return A.complexIsSuperselector(t2, t1);
+    },
+    complexIsSuperselector(complex1, complex2) {
+      var t1, t2, t3, i1, i2, previousCombinator, remaining1, t4, remaining2, component1, t5, parents, endOfSubselector, component2, combinator1;
+      if (B.JSArray_methods.get$last(complex1).combinators.length !== 0)
+        return false;
+      if (B.JSArray_methods.get$last(complex2).combinators.length !== 0)
+        return false;
+      for (t1 = type$.JSArray_ComplexSelectorComponent, t2 = A._arrayInstanceType(complex2), t3 = t2._precomputed1, t2 = t2._eval$1("SubListIterable<1>"), i1 = 0, i2 = 0, previousCombinator = null; true; previousCombinator = combinator1) {
+        remaining1 = complex1.length - i1;
+        t4 = complex2.length;
+        remaining2 = t4 - i2;
+        if (remaining1 === 0 || remaining2 === 0)
+          return false;
+        if (remaining1 > remaining2)
+          return false;
+        component1 = complex1[i1];
+        t5 = component1.combinators;
+        if (t5.length > 1)
+          return false;
+        if (remaining1 === 1) {
+          parents = B.JSArray_methods.sublist$2(complex2, i2, t4 - 1);
+          if (B.JSArray_methods.any$1(parents, new A.complexIsSuperselector_closure()))
+            return false;
+          return A.compoundIsSuperselector(component1.selector, B.JSArray_methods.get$last(complex2).selector, parents);
+        }
+        for (t4 = component1.selector, endOfSubselector = i2, parents = null; true;) {
+          component2 = complex2[endOfSubselector];
+          if (component2.combinators.length > 1)
+            return false;
+          if (A.compoundIsSuperselector(t4, component2.selector, parents))
+            break;
+          ++endOfSubselector;
+          if (endOfSubselector === complex2.length - 1)
+            return false;
+          if (parents == null)
+            parents = A._setArrayType([], t1);
+          parents.push(component2);
+        }
+        if (!A._compatibleWithPreviousCombinator(previousCombinator, parents == null ? B.List_empty0 : parents))
+          return false;
+        component2 = complex2[endOfSubselector];
+        combinator1 = A.IterableExtension_get_firstOrNull(t5);
+        if (!A._isSupercombinator(combinator1, A.IterableExtension_get_firstOrNull(component2.combinators)))
+          return false;
+        ++i1;
+        i2 = endOfSubselector + 1;
+        if (complex1.length - i1 === 1) {
+          t4 = combinator1 == null;
+          if (J.$eq$(t4 ? null : combinator1.value, B.Combinator_y18)) {
+            t4 = complex2.length - 1;
+            t5 = new A.SubListIterable(complex2, 0, t4, t2);
+            t5.SubListIterable$3(complex2, 0, t4, t3);
+            if (!t5.skip$1(0, i2).every$1(0, new A.complexIsSuperselector_closure0(combinator1)))
+              return false;
+          } else if (!t4)
+            if (complex2.length - i2 > 1)
+              return false;
+        }
+      }
+    },
+    _compatibleWithPreviousCombinator(previous, parents) {
+      if (parents.length === 0)
+        return true;
+      if (previous == null)
+        return true;
+      if (previous.value !== B.Combinator_y18)
+        return false;
+      return B.JSArray_methods.every$1(parents, new A._compatibleWithPreviousCombinator_closure());
+    },
+    _isSupercombinator(combinator1, combinator2) {
+      var t1, t2;
+      if (!J.$eq$(combinator1, combinator2)) {
+        t1 = combinator1 == null;
+        if (t1)
+          t2 = J.$eq$(combinator2 == null ? null : combinator2.value, B.Combinator_8I8);
+        else
+          t2 = false;
+        if (!t2)
+          if (J.$eq$(t1 ? null : combinator1.value, B.Combinator_y18))
+            t1 = J.$eq$(combinator2 == null ? null : combinator2.value, B.Combinator_gRV);
+          else
+            t1 = false;
+        else
+          t1 = true;
+      } else
+        t1 = true;
+      return t1;
+    },
+    compoundIsSuperselector(compound1, compound2, parents) {
+      var t2, pseudo1, index1, t3, pseudo2, index2, _0_50, t4, t5, _i, simple1, _null = null,
+        _0_1 = A._findPseudoElementIndexed(compound1),
+        _0_5 = A._findPseudoElementIndexed(compound2),
+        t1 = type$.Record_2_nullable_Object_and_nullable_Object,
+        _0_5_isSet = t1._is(_0_1);
+      if (_0_5_isSet) {
+        t2 = _0_1 == null;
+        pseudo1 = (t2 ? t1._as(_0_1) : _0_1)._0;
+        index1 = (t2 ? t1._as(_0_1) : _0_1)._1;
+        t2 = t1._is(_0_5);
+        if (t2) {
+          t3 = _0_5 == null;
+          pseudo2 = (t3 ? t1._as(_0_5) : _0_5)._0;
+          index2 = (t3 ? t1._as(_0_5) : _0_5)._1;
+        } else {
+          index2 = _null;
+          pseudo2 = index2;
+        }
+        t1 = t2;
+        _0_50 = _0_5;
+      } else {
+        index2 = _null;
+        pseudo2 = index2;
+        index1 = pseudo2;
+        pseudo1 = index1;
+        _0_50 = pseudo1;
+        t1 = false;
+      }
+      if (t1) {
+        if (pseudo1.isSuperselector$1(pseudo2)) {
+          t1 = compound1.components;
+          t2 = type$.int;
+          t3 = A._arrayInstanceType(t1)._precomputed1;
+          t4 = compound2.components;
+          t5 = A._arrayInstanceType(t4)._precomputed1;
+          t1 = A._compoundComponentsIsSuperselector(A.SubListIterable$(t1, 0, A.checkNotNullable(index1, "count", t2), t3), A.SubListIterable$(t4, 0, A.checkNotNullable(index2, "count", t2), t5), parents) && A._compoundComponentsIsSuperselector(A.SubListIterable$(t1, index1 + 1, _null, t3), A.SubListIterable$(t4, index2 + 1, _null, t5), parents);
+        } else
+          t1 = false;
+        return t1;
+      }
+      if (_0_1 == null)
+        t1 = (_0_5_isSet ? _0_50 : _0_5) != null;
+      else
+        t1 = true;
+      if (t1)
+        return false;
+      for (t1 = compound1.components, t2 = t1.length, t3 = compound2.components, _i = 0; _i < t2; ++_i) {
+        simple1 = t1[_i];
+        if (simple1 instanceof A.PseudoSelector)
+          t4 = simple1.selector != null;
+        else
+          t4 = false;
+        if (t4) {
+          if (!A._selectorPseudoIsSuperselector(simple1, compound2, parents))
+            return false;
+        } else if (!B.JSArray_methods.any$1(t3, simple1.get$isSuperselector()))
+          return false;
+      }
+      return true;
+    },
+    _findPseudoElementIndexed(compound) {
+      var t1, t2, i, simple;
+      for (t1 = compound.components, t2 = t1.length, i = 0; i < t2; ++i) {
+        simple = t1[i];
+        if (simple instanceof A.PseudoSelector && !simple.isClass)
+          return new A._Record_2(simple, i);
+      }
+      return null;
+    },
+    _compoundComponentsIsSuperselector(compound1, compound2, parents) {
+      var t1;
+      if (compound1.get$length(0) === 0)
+        return true;
+      if (compound2.get$length(0) === 0)
+        compound2 = A._setArrayType([new A.UniversalSelector("*", $.$get$bogusSpan())], type$.JSArray_SimpleSelector);
+      t1 = $.$get$bogusSpan();
+      return A.compoundIsSuperselector(A.CompoundSelector$(compound1, t1), A.CompoundSelector$(compound2, t1), parents);
+    },
+    _selectorPseudoIsSuperselector(pseudo1, compound2, parents) {
+      var selector1 = pseudo1.selector;
+      if (selector1 == null)
+        throw A.wrapException(A.ArgumentError$("Selector " + pseudo1.toString$0(0) + " must have a selector argument.", null));
+      switch (pseudo1.normalizedName) {
+        case "is":
+        case "matches":
+        case "any":
+        case "where":
+          return A._selectorPseudoArgs(compound2, pseudo1.name, true).any$1(0, new A._selectorPseudoIsSuperselector_closure(selector1)) || B.JSArray_methods.any$1(selector1.components, new A._selectorPseudoIsSuperselector_closure0(parents, compound2));
+        case "has":
+        case "host":
+        case "host-context":
+          return A._selectorPseudoArgs(compound2, pseudo1.name, true).any$1(0, new A._selectorPseudoIsSuperselector_closure1(selector1));
+        case "slotted":
+          return A._selectorPseudoArgs(compound2, pseudo1.name, false).any$1(0, new A._selectorPseudoIsSuperselector_closure2(selector1));
+        case "not":
+          return B.JSArray_methods.every$1(selector1.components, new A._selectorPseudoIsSuperselector_closure3(compound2, pseudo1));
+        case "current":
+          return A._selectorPseudoArgs(compound2, pseudo1.name, true).any$1(0, new A._selectorPseudoIsSuperselector_closure4(selector1));
+        case "nth-child":
+        case "nth-last-child":
+          return B.JSArray_methods.any$1(compound2.components, new A._selectorPseudoIsSuperselector_closure5(pseudo1, selector1));
+        default:
+          throw A.wrapException("unreachable");
+      }
+    },
+    _selectorPseudoArgs(compound, $name, isClass) {
+      var t1 = type$.WhereTypeIterable_PseudoSelector;
+      return A.IterableNullableExtension_whereNotNull(new A.MappedIterable(new A.WhereIterable(new A.WhereTypeIterable(compound.components, t1), new A._selectorPseudoArgs_closure(isClass, $name), t1._eval$1("WhereIterable<Iterable.E>")), new A._selectorPseudoArgs_closure0(), t1._eval$1("MappedIterable<Iterable.E,SelectorList?>")), type$.SelectorList);
+    },
+    unifyComplex_closure: function unifyComplex_closure() {
+    },
+    _weaveParents_closure: function _weaveParents_closure(t0) {
+      this.span = t0;
+    },
+    _weaveParents_closure0: function _weaveParents_closure0(t0) {
+      this.group = t0;
+    },
+    _weaveParents_closure1: function _weaveParents_closure1() {
+    },
+    _weaveParents_closure2: function _weaveParents_closure2() {
+    },
+    _mustUnify_closure: function _mustUnify_closure(t0) {
+      this.uniqueSelectors = t0;
+    },
+    _mustUnify__closure: function _mustUnify__closure(t0) {
+      this.uniqueSelectors = t0;
+    },
+    paths_closure: function paths_closure(t0) {
+      this.T = t0;
+    },
+    paths__closure: function paths__closure(t0, t1) {
+      this.paths = t0;
+      this.T = t1;
+    },
+    paths___closure: function paths___closure(t0, t1) {
+      this.option = t0;
+      this.T = t1;
+    },
+    listIsSuperselector_closure: function listIsSuperselector_closure(t0) {
+      this.list1 = t0;
+    },
+    listIsSuperselector__closure: function listIsSuperselector__closure(t0) {
+      this.complex1 = t0;
+    },
+    complexIsSuperselector_closure: function complexIsSuperselector_closure() {
+    },
+    complexIsSuperselector_closure0: function complexIsSuperselector_closure0(t0) {
+      this.combinator1 = t0;
+    },
+    _compatibleWithPreviousCombinator_closure: function _compatibleWithPreviousCombinator_closure() {
+    },
+    _selectorPseudoIsSuperselector_closure: function _selectorPseudoIsSuperselector_closure(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure0: function _selectorPseudoIsSuperselector_closure0(t0, t1) {
+      this.parents = t0;
+      this.compound2 = t1;
+    },
+    _selectorPseudoIsSuperselector_closure1: function _selectorPseudoIsSuperselector_closure1(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure2: function _selectorPseudoIsSuperselector_closure2(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure3: function _selectorPseudoIsSuperselector_closure3(t0, t1) {
+      this.compound2 = t0;
+      this.pseudo1 = t1;
+    },
+    _selectorPseudoIsSuperselector__closure: function _selectorPseudoIsSuperselector__closure(t0, t1) {
+      this.complex = t0;
+      this.pseudo1 = t1;
+    },
+    _selectorPseudoIsSuperselector___closure: function _selectorPseudoIsSuperselector___closure(t0) {
+      this.simple2 = t0;
+    },
+    _selectorPseudoIsSuperselector___closure0: function _selectorPseudoIsSuperselector___closure0(t0) {
+      this.simple2 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure4: function _selectorPseudoIsSuperselector_closure4(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure5: function _selectorPseudoIsSuperselector_closure5(t0, t1) {
+      this.pseudo1 = t0;
+      this.selector1 = t1;
+    },
+    _selectorPseudoArgs_closure: function _selectorPseudoArgs_closure(t0, t1) {
+      this.isClass = t0;
+      this.name = t1;
+    },
+    _selectorPseudoArgs_closure0: function _selectorPseudoArgs_closure0() {
+    },
+    MergedExtension_merge(left, right) {
+      var t2, t3, t4,
+        t1 = left.extender.selector;
+      if (!t1.$eq(0, right.extender.selector) || !left.target.$eq(0, right.target))
+        throw A.wrapException(A.ArgumentError$(left.toString$0(0) + " and " + right.toString$0(0) + " aren't the same extension.", null));
+      t2 = left.mediaContext;
+      t3 = t2 == null;
+      if (!t3) {
+        t4 = right.mediaContext;
+        t4 = t4 != null && !B.C_ListEquality.equals$2(0, t2, t4);
+      } else
+        t4 = false;
+      if (t4)
+        throw A.wrapException(A.SassException$("From " + left.span.message$1(0, "") + string$.x0aYou_m, right.span, null));
+      if (right.isOptional && right.mediaContext == null)
+        return left;
+      if (left.isOptional && t3)
+        return right;
+      if (t3)
+        t2 = right.mediaContext;
+      t1.get$specificity();
+      t1 = new A.Extender(t1, false);
+      return t1._extension = new A.MergedExtension(left, right, t1, left.target, t2, true, left.span);
+    },
+    MergedExtension: function MergedExtension(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.left = t0;
+      _.right = t1;
+      _.extender = t2;
+      _.target = t3;
+      _.mediaContext = t4;
+      _.isOptional = t5;
+      _.span = t6;
+    },
+    ExtendMode: function ExtendMode(t0, t1) {
+      this.name = t0;
+      this._name = t1;
+    },
+    globalFunctions_closure: function globalFunctions_closure() {
+    },
+    _updateComponents($arguments, adjust, change, scale) {
+      var keywords, alpha, red, green, blue, hue, saturation, lightness, whiteness, blackness, hasRgb, hasSL, hasWB, t2, t3, t4, t5, _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        argumentList = type$.SassArgumentList._as(t1.$index($arguments, 1));
+      if (argumentList._list$_contents.length !== 0)
+        throw A.wrapException(A.SassScriptException$(string$.Only_op, _null));
+      argumentList._wereKeywordsAccessed = true;
+      keywords = A.LinkedHashMap_LinkedHashMap$of(argumentList._keywords, type$.String, type$.Value);
+      t1 = new A._updateComponents_getParam(keywords, scale, change);
+      alpha = t1.call$3$checkUnitless("alpha", 1, true);
+      red = t1.call$2("red", 255);
+      green = t1.call$2("green", 255);
+      blue = t1.call$2("blue", 255);
+      hue = scale ? _null : A.NullableExtension_andThen(keywords.remove$1(0, "hue"), new A._updateComponents_closure());
+      saturation = t1.call$3$checkPercent("saturation", 100, true);
+      lightness = t1.call$3$checkPercent("lightness", 100, true);
+      whiteness = t1.call$3$assertPercent("whiteness", 100, true);
+      blackness = t1.call$3$assertPercent("blackness", 100, true);
+      t1 = keywords.__js_helper$_length;
+      if (t1 !== 0)
+        throw A.wrapException(A.SassScriptException$("No " + A.pluralize("argument", t1, _null) + " named " + A.toSentence(keywords.get$keys(0).map$1$1(0, new A._updateComponents_closure0(), type$.Object), "or") + ".", _null));
+      hasRgb = red != null || green != null || blue != null;
+      hasSL = saturation != null || lightness != null;
+      hasWB = whiteness != null || blackness != null;
+      if (hasRgb)
+        t1 = hasSL || hasWB || hue != null;
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$(string$.RGB_pa + (hasWB ? "HWB" : "HSL") + " parameters.", _null));
+      if (hasSL && hasWB)
+        throw A.wrapException(A.SassScriptException$(string$.HSL_pa, _null));
+      t1 = new A._updateComponents_updateValue(change, adjust);
+      t2 = new A._updateComponents_updateRgb(t1);
+      if (hasRgb) {
+        t3 = t2.call$2(color.get$red(0), red);
+        t4 = t2.call$2(color.get$green(0), green);
+        t2 = t2.call$2(color.get$blue(0), blue);
+        return color.changeRgb$4$alpha$blue$green$red(t1.call$3(color._alpha, alpha, 1), t2, t4, t3);
+      } else if (hasWB) {
+        if (change)
+          t2 = hue;
+        else {
+          t2 = color.get$hue(0);
+          t2 += hue == null ? 0 : hue;
+        }
+        t3 = t1.call$3(color.get$whiteness(0), whiteness, 100);
+        t4 = t1.call$3(color.get$blackness(0), blackness, 100);
+        t5 = color._alpha;
+        t1 = t1.call$3(t5, alpha, 1);
+        if (t2 == null)
+          t2 = color.get$hue(0);
+        if (t3 == null)
+          t3 = color.get$whiteness(0);
+        if (t4 == null)
+          t4 = color.get$blackness(0);
+        return A.SassColor_SassColor$hwb(t2, t3, t4, t1 == null ? t5 : t1);
+      } else {
+        t2 = hue == null;
+        if (!t2 || hasSL) {
+          if (change)
+            t2 = hue;
+          else {
+            t3 = color.get$hue(0);
+            t3 += t2 ? 0 : hue;
+            t2 = t3;
+          }
+          t3 = t1.call$3(color.get$saturation(0), saturation, 100);
+          t4 = t1.call$3(color.get$lightness(0), lightness, 100);
+          return color.changeHsl$4$alpha$hue$lightness$saturation(t1.call$3(color._alpha, alpha, 1), t2, t4, t3);
+        } else if (alpha != null)
+          return color.changeAlpha$1(t1.call$3(color._alpha, alpha, 1));
+        else
+          return color;
+      }
+    },
+    _functionString($name, $arguments) {
+      return new A.SassString($name + "(" + J.map$1$1$ax($arguments, new A._functionString_closure(), type$.String).join$1(0, ", ") + ")", false);
+    },
+    _removedColorFunction($name, argument, negative) {
+      return A.BuiltInCallable$function($name, "$color, $amount", new A._removedColorFunction_closure($name, argument, negative), "sass:color");
+    },
+    _rgb($name, $arguments) {
+      var t2, red, green, blue, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        alpha = t1.get$length($arguments) > 3 ? t1.$index($arguments, 3) : null;
+      if (!t1.$index($arguments, 0).get$isSpecialNumber())
+        if (!t1.$index($arguments, 1).get$isSpecialNumber())
+          if (!t1.$index($arguments, 2).get$isSpecialNumber()) {
+            t2 = alpha == null ? null : alpha.get$isSpecialNumber();
+            t2 = t2 === true;
+          } else
+            t2 = true;
+        else
+          t2 = true;
+      else
+        t2 = true;
+      if (t2)
+        return A._functionString($name, $arguments);
+      red = t1.$index($arguments, 0).assertNumber$1("red");
+      green = t1.$index($arguments, 1).assertNumber$1("green");
+      blue = t1.$index($arguments, 2).assertNumber$1("blue");
+      t1 = A.fuzzyRound(A._percentageOrUnitless(red, 255, "red"));
+      t2 = A.fuzzyRound(A._percentageOrUnitless(green, 255, "green"));
+      t3 = A.fuzzyRound(A._percentageOrUnitless(blue, 255, "blue"));
+      t4 = A.NullableExtension_andThen(alpha, new A._rgb_closure());
+      return A.SassColor$rgbInternal(t1, t2, t3, t4 == null ? 1 : t4, B._ColorFormatEnum_rgbFunction);
+    },
+    _rgbTwoArg($name, $arguments) {
+      var t2, color,
+        t1 = J.getInterceptor$asx($arguments);
+      if (!t1.$index($arguments, 0).get$isVar())
+        t2 = !(t1.$index($arguments, 0) instanceof A.SassColor) && t1.$index($arguments, 1).get$isVar();
+      else
+        t2 = true;
+      if (t2)
+        return A._functionString($name, $arguments);
+      else if (t1.$index($arguments, 1).get$isSpecialNumber()) {
+        color = t1.$index($arguments, 0).assertColor$1("color");
+        return new A.SassString($name + "(" + color.get$red(0) + ", " + color.get$green(0) + ", " + color.get$blue(0) + ", " + A.serializeValue(t1.$index($arguments, 1), false, true) + ")", false);
+      }
+      return t1.$index($arguments, 0).assertColor$1("color").changeAlpha$1(A._percentageOrUnitless(t1.$index($arguments, 1).assertNumber$1("alpha"), 1, "alpha"));
+    },
+    _hsl($name, $arguments) {
+      var t2, hue, saturation, lightness, t3,
+        _s10_ = "saturation",
+        _s9_ = "lightness",
+        t1 = J.getInterceptor$asx($arguments),
+        alpha = t1.get$length($arguments) > 3 ? t1.$index($arguments, 3) : null;
+      if (!t1.$index($arguments, 0).get$isSpecialNumber())
+        if (!t1.$index($arguments, 1).get$isSpecialNumber())
+          if (!t1.$index($arguments, 2).get$isSpecialNumber()) {
+            t2 = alpha == null ? null : alpha.get$isSpecialNumber();
+            t2 = t2 === true;
+          } else
+            t2 = true;
+        else
+          t2 = true;
+      else
+        t2 = true;
+      if (t2)
+        return A._functionString($name, $arguments);
+      hue = A._angleValue(t1.$index($arguments, 0), "hue");
+      saturation = t1.$index($arguments, 1).assertNumber$1(_s10_);
+      lightness = t1.$index($arguments, 2).assertNumber$1(_s9_);
+      A._checkPercent(saturation, _s10_);
+      A._checkPercent(lightness, _s9_);
+      t1 = B.JSNumber_methods.clamp$2(saturation._number$_value, 0, 100);
+      t2 = B.JSNumber_methods.clamp$2(lightness._number$_value, 0, 100);
+      t3 = A.NullableExtension_andThen(alpha, new A._hsl_closure());
+      return A.SassColor$hslInternal(hue, t1, t2, t3 == null ? 1 : t3, B._ColorFormatEnum_hslFunction);
+    },
+    _angleValue(angleValue, $name) {
+      var angle = angleValue.assertNumber$1($name);
+      if (angle.compatibleWithUnit$1("deg"))
+        return angle.coerceValueToUnit$1("deg");
+      A.warnForDeprecation("$" + $name + ": Passing a unit other than deg (" + angle.toString$0(0) + string$.x29x20is_d + angle.unitSuggestion$1($name) + string$.x0a_See_, B.Deprecation_2jN);
+      return angle._number$_value;
+    },
+    _checkPercent(number, $name) {
+      if (number.hasUnit$1("%"))
+        return;
+      A.warnForDeprecation("$" + $name + ": Passing a number without unit % (" + number.toString$0(0) + string$.x29x20is_d + number.unitSuggestion$2($name, "%") + string$.x0a_Morex3a, B.Deprecation_2jN);
+    },
+    _hwb($arguments) {
+      var t2, t3,
+        _s9_ = "whiteness",
+        _s9_0 = "blackness",
+        t1 = J.getInterceptor$asx($arguments),
+        alpha = t1.get$length($arguments) > 3 ? t1.$index($arguments, 3) : null,
+        hue = A._angleValue(t1.$index($arguments, 0), "hue"),
+        whiteness = t1.$index($arguments, 1).assertNumber$1(_s9_),
+        blackness = t1.$index($arguments, 2).assertNumber$1(_s9_0);
+      whiteness.assertUnit$2("%", _s9_);
+      blackness.assertUnit$2("%", _s9_0);
+      t1 = whiteness.valueInRange$3(0, 100, _s9_);
+      t2 = blackness.valueInRange$3(0, 100, _s9_0);
+      t3 = A.NullableExtension_andThen(alpha, new A._hwb_closure());
+      return A.SassColor_SassColor$hwb(hue, t1, t2, t3 == null ? 1 : t3);
+    },
+    _parseChannels($name, argumentNames, channels) {
+      var list, t1, channels0, alphaFromSlashList, isCommaSeparated, isBracketed, buffer, _0_4, _1_0, _1_2_isSet, _1_2, t2, _null = null,
+        _s17_ = "$channels must be";
+      if (channels.get$isVar())
+        return A._functionString($name, A._setArrayType([channels], type$.JSArray_Value));
+      if (channels.get$separator(channels) === B.ListSeparator_cQA) {
+        list = channels.get$asList();
+        t1 = list.length;
+        if (t1 !== 2)
+          throw A.wrapException(A.SassScriptException$(string$.Only_2 + t1 + " " + A.pluralize("was", t1, "were") + " passed.", _null));
+        channels0 = list[0];
+        alphaFromSlashList = list[1];
+        if (!alphaFromSlashList.get$isSpecialNumber())
+          alphaFromSlashList.assertNumber$1("alpha");
+        if (list[0].get$isVar())
+          return A._functionString($name, A._setArrayType([channels], type$.JSArray_Value));
+      } else {
+        alphaFromSlashList = _null;
+        channels0 = channels;
+      }
+      isCommaSeparated = channels0.get$separator(channels0) === B.ListSeparator_ECn;
+      isBracketed = channels0.get$hasBrackets();
+      if (isCommaSeparated || isBracketed) {
+        buffer = new A.StringBuffer(_s17_);
+        if (isBracketed) {
+          t1 = _s17_ + " an unbracketed";
+          buffer._contents = t1;
+        } else
+          t1 = _s17_;
+        if (isCommaSeparated) {
+          t1 += isBracketed ? "," : " a";
+          buffer._contents = t1;
+          t1 = buffer._contents = t1 + " space-separated";
+        }
+        buffer._contents = t1 + " list.";
+        throw A.wrapException(A.SassScriptException$(buffer.toString$0(0), _null));
+      }
+      list = channels0.get$asList();
+      if (list.length >= 2) {
+        _0_4 = list[0];
+        t1 = _0_4;
+        if (t1 instanceof A.SassString) {
+          type$.SassString._as(_0_4);
+          t1 = !_0_4._hasQuotes && A.equalsIgnoreCase(_0_4._string$_text, "from");
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        return A._functionString($name, A._setArrayType([channels], type$.JSArray_Value));
+      t1 = list.length;
+      if (t1 > 3)
+        throw A.wrapException(A.SassScriptException$("Only 3 elements allowed, but " + t1 + " were passed.", _null));
+      else if (t1 < 3) {
+        if (!B.JSArray_methods.any$1(list, new A._parseChannels_closure()))
+          if (list.length !== 0) {
+            t1 = B.JSArray_methods.get$last(list);
+            if (t1 instanceof A.SassString)
+              if (t1._hasQuotes) {
+                t1 = t1._string$_text;
+                t1 = A.startsWithIgnoreCase(t1, "var(") && B.JSString_methods.contains$1(t1, "/");
+              } else
+                t1 = false;
+            else
+              t1 = false;
+          } else
+            t1 = false;
+        else
+          t1 = true;
+        if (t1)
+          return A._functionString($name, A._setArrayType([channels], type$.JSArray_Value));
+        else
+          throw A.wrapException(A.SassScriptException$("Missing element " + argumentNames[list.length] + ".", _null));
+      }
+      if (alphaFromSlashList != null) {
+        t1 = A.List_List$of(list, true, type$.Value);
+        t1.push(alphaFromSlashList);
+        return t1;
+      }
+      _1_0 = list[2];
+      $label0$0: {
+        _1_2_isSet = _1_0 instanceof A.SassNumber;
+        if (_1_2_isSet) {
+          _1_2 = _1_0.asSlash;
+          t1 = type$.Record_2_nullable_Object_and_nullable_Object._is(_1_2);
+        } else {
+          _1_2 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          if (_1_2_isSet)
+            t1 = _1_2;
+          else {
+            _1_2 = _1_0.asSlash;
+            t1 = _1_2;
+            _1_2_isSet = true;
+          }
+          if (t1 == null)
+            t1 = type$.Record_2_nullable_Object_and_nullable_Object._as(t1);
+          t2 = _1_2_isSet ? _1_2 : _1_0.asSlash;
+          if (t2 == null)
+            t2 = type$.Record_2_nullable_Object_and_nullable_Object._as(t2);
+          t2 = A._setArrayType([list[0], list[1], t1._0, t2._1], type$.JSArray_Value);
+          t1 = t2;
+          break $label0$0;
+        }
+        if (_1_0 instanceof A.SassString)
+          if (!_1_0._hasQuotes)
+            t1 = B.JSString_methods.contains$1(_1_0._string$_text, "/");
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1) {
+          t1 = A._functionString($name, A._setArrayType([channels0], type$.JSArray_Value));
+          break $label0$0;
+        }
+        t1 = list;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _percentageOrUnitless(number, max, $name) {
+      var value;
+      if (!number.get$hasUnits())
+        value = number._number$_value;
+      else if (number.hasUnit$1("%"))
+        value = max * number._number$_value / 100;
+      else
+        throw A.wrapException(A.SassScriptException$("$" + $name + ": Expected " + number.toString$0(0) + ' to have unit "%" or no units.', null));
+      return B.JSNumber_methods.clamp$2(value, 0, max);
+    },
+    _mixColors(color1, color2, weight) {
+      var weightScale, normalizedWeight, t1, t2, alphaDistance, t3, weight1, weight2;
+      A._checkPercent(weight, "weight");
+      weightScale = weight.valueInRange$3(0, 100, "weight") / 100;
+      normalizedWeight = weightScale * 2 - 1;
+      t1 = color1._alpha;
+      t2 = color2._alpha;
+      alphaDistance = t1 - t2;
+      t3 = normalizedWeight * alphaDistance;
+      weight1 = ((t3 === -1 ? normalizedWeight : (normalizedWeight + alphaDistance) / (1 + t3)) + 1) / 2;
+      weight2 = 1 - weight1;
+      return A.SassColor$rgb(A.fuzzyRound(color1.get$red(0) * weight1 + color2.get$red(0) * weight2), A.fuzzyRound(color1.get$green(0) * weight1 + color2.get$green(0) * weight2), A.fuzzyRound(color1.get$blue(0) * weight1 + color2.get$blue(0) * weight2), t1 * weightScale + t2 * (1 - weightScale));
+    },
+    _opacify($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color");
+      return color.changeAlpha$1(B.JSNumber_methods.clamp$2(color._alpha + t1.$index($arguments, 1).assertNumber$1("amount").valueInRangeWithUnit$4(0, 1, "amount", ""), 0, 1));
+    },
+    _transparentize($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color");
+      return color.changeAlpha$1(B.JSNumber_methods.clamp$2(color._alpha - t1.$index($arguments, 1).assertNumber$1("amount").valueInRangeWithUnit$4(0, 1, "amount", ""), 0, 1));
+    },
+    _function4($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:color");
+    },
+    global_closure0: function global_closure0() {
+    },
+    global_closure1: function global_closure1() {
+    },
+    global_closure2: function global_closure2() {
+    },
+    global_closure3: function global_closure3() {
+    },
+    global_closure4: function global_closure4() {
+    },
+    global_closure5: function global_closure5() {
+    },
+    global_closure6: function global_closure6() {
+    },
+    global_closure7: function global_closure7() {
+    },
+    global_closure8: function global_closure8() {
+    },
+    global_closure9: function global_closure9() {
+    },
+    global_closure10: function global_closure10() {
+    },
+    global_closure11: function global_closure11() {
+    },
+    global_closure12: function global_closure12() {
+    },
+    global_closure13: function global_closure13() {
+    },
+    global_closure14: function global_closure14() {
+    },
+    global_closure15: function global_closure15() {
+    },
+    global_closure16: function global_closure16() {
+    },
+    global_closure17: function global_closure17() {
+    },
+    global_closure18: function global_closure18() {
+    },
+    global_closure19: function global_closure19() {
+    },
+    global_closure20: function global_closure20() {
+    },
+    global_closure21: function global_closure21() {
+    },
+    global_closure22: function global_closure22() {
+    },
+    global_closure23: function global_closure23() {
+    },
+    global_closure24: function global_closure24() {
+    },
+    global_closure25: function global_closure25() {
+    },
+    global__closure: function global__closure() {
+    },
+    global_closure26: function global_closure26() {
+    },
+    module_closure1: function module_closure1() {
+    },
+    module_closure2: function module_closure2() {
+    },
+    module_closure3: function module_closure3() {
+    },
+    module_closure4: function module_closure4() {
+    },
+    module_closure5: function module_closure5() {
+    },
+    module_closure6: function module_closure6() {
+    },
+    module_closure7: function module_closure7() {
+    },
+    module_closure8: function module_closure8() {
+    },
+    module__closure1: function module__closure1() {
+    },
+    module_closure9: function module_closure9() {
+    },
+    _red_closure: function _red_closure() {
+    },
+    _green_closure: function _green_closure() {
+    },
+    _blue_closure: function _blue_closure() {
+    },
+    _mix_closure: function _mix_closure() {
+    },
+    _hue_closure: function _hue_closure() {
+    },
+    _saturation_closure: function _saturation_closure() {
+    },
+    _lightness_closure: function _lightness_closure() {
+    },
+    _complement_closure: function _complement_closure() {
+    },
+    _adjust_closure: function _adjust_closure() {
+    },
+    _scale_closure: function _scale_closure() {
+    },
+    _change_closure: function _change_closure() {
+    },
+    _ieHexStr_closure: function _ieHexStr_closure() {
+    },
+    _ieHexStr_closure_hexString: function _ieHexStr_closure_hexString() {
+    },
+    _updateComponents_getParam: function _updateComponents_getParam(t0, t1, t2) {
+      this.keywords = t0;
+      this.scale = t1;
+      this.change = t2;
+    },
+    _updateComponents_closure: function _updateComponents_closure() {
+    },
+    _updateComponents_closure0: function _updateComponents_closure0() {
+    },
+    _updateComponents_updateValue: function _updateComponents_updateValue(t0, t1) {
+      this.change = t0;
+      this.adjust = t1;
+    },
+    _updateComponents_updateRgb: function _updateComponents_updateRgb(t0) {
+      this.updateValue = t0;
+    },
+    _functionString_closure: function _functionString_closure() {
+    },
+    _removedColorFunction_closure: function _removedColorFunction_closure(t0, t1, t2) {
+      this.name = t0;
+      this.argument = t1;
+      this.negative = t2;
+    },
+    _rgb_closure: function _rgb_closure() {
+    },
+    _hsl_closure: function _hsl_closure() {
+    },
+    _hwb_closure: function _hwb_closure() {
+    },
+    _parseChannels_closure: function _parseChannels_closure() {
+    },
+    _function3($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:list");
+    },
+    _length_closure0: function _length_closure0() {
+    },
+    _nth_closure: function _nth_closure() {
+    },
+    _setNth_closure: function _setNth_closure() {
+    },
+    _join_closure: function _join_closure() {
+    },
+    _append_closure0: function _append_closure0() {
+    },
+    _zip_closure: function _zip_closure() {
+    },
+    _zip__closure: function _zip__closure() {
+    },
+    _zip__closure0: function _zip__closure0(t0) {
+      this._box_0 = t0;
+    },
+    _zip__closure1: function _zip__closure1(t0) {
+      this._box_0 = t0;
+    },
+    _index_closure0: function _index_closure0() {
+    },
+    _separator_closure: function _separator_closure() {
+    },
+    _isBracketed_closure: function _isBracketed_closure() {
+    },
+    _slash_closure: function _slash_closure() {
+    },
+    _modify(map, keys, modify, addNesting) {
+      var keyIterator = J.get$iterator$ax(keys);
+      return keyIterator.moveNext$0() ? new A._modify_modifyNestedMap(keyIterator, modify, addNesting).call$1(map) : modify.call$1(map);
+    },
+    _deepMergeImpl(map1, map2) {
+      var t2, t3, result, t4, key, value, _1_1, _1_3, _1_3_isSet, resultMap, _1_30, valueMap, merged, _null = null,
+        t1 = map1._map$_contents;
+      if (t1.get$isEmpty(t1))
+        return map2;
+      t2 = map2._map$_contents;
+      if (t2.get$isEmpty(t2))
+        return map1;
+      t3 = type$.Value;
+      result = A.LinkedHashMap_LinkedHashMap$of(t1, t3, t3);
+      for (t1 = A.MapExtensions_get_pairs(t2, t3, t3), t1 = t1.get$iterator(t1), t2 = type$.SassMap; t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        key = t4._0;
+        value = t4._1;
+        t4 = result.$index(0, key);
+        _1_1 = t4 == null ? _null : t4.tryMap$0();
+        _1_3 = value.tryMap$0();
+        _1_3_isSet = _1_1 != null;
+        if (_1_3_isSet) {
+          resultMap = _1_1 == null ? t2._as(_1_1) : _1_1;
+          t4 = _1_3 != null;
+          _1_30 = _1_3;
+        } else {
+          resultMap = _null;
+          _1_30 = resultMap;
+          t4 = false;
+        }
+        if (t4) {
+          valueMap = _1_3_isSet ? _1_30 : _1_3;
+          merged = A._deepMergeImpl(resultMap, valueMap == null ? t2._as(valueMap) : valueMap);
+          if (merged === resultMap)
+            continue;
+          result.$indexSet(0, key, merged);
+        } else
+          result.$indexSet(0, key, value);
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(result, t3, t3));
+    },
+    _function2($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:map");
+    },
+    _get_closure: function _get_closure() {
+    },
+    _set_closure: function _set_closure() {
+    },
+    _set__closure0: function _set__closure0(t0) {
+      this.$arguments = t0;
+    },
+    _set_closure0: function _set_closure0() {
+    },
+    _set__closure: function _set__closure(t0) {
+      this._box_0 = t0;
+    },
+    _merge_closure: function _merge_closure() {
+    },
+    _merge_closure0: function _merge_closure0() {
+    },
+    _merge__closure: function _merge__closure(t0) {
+      this.map2 = t0;
+    },
+    _deepMerge_closure: function _deepMerge_closure() {
+    },
+    _deepRemove_closure: function _deepRemove_closure() {
+    },
+    _deepRemove__closure: function _deepRemove__closure(t0) {
+      this.keys = t0;
+    },
+    _remove_closure: function _remove_closure() {
+    },
+    _remove_closure0: function _remove_closure0() {
+    },
+    _keys_closure: function _keys_closure() {
+    },
+    _values_closure: function _values_closure() {
+    },
+    _hasKey_closure: function _hasKey_closure() {
+    },
+    _modify_modifyNestedMap: function _modify_modifyNestedMap(t0, t1, t2) {
+      this.keyIterator = t0;
+      this.modify = t1;
+      this.addNesting = t2;
+    },
+    _singleArgumentMathFunc($name, mathFunc) {
+      return A.BuiltInCallable$function($name, "$number", new A._singleArgumentMathFunc_closure(mathFunc), "sass:math");
+    },
+    _numberFunction($name, transform) {
+      return A.BuiltInCallable$function($name, "$number", new A._numberFunction_closure(transform), "sass:math");
+    },
+    _function1($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:math");
+    },
+    global_closure: function global_closure() {
+    },
+    module_closure0: function module_closure0() {
+    },
+    _ceil_closure: function _ceil_closure() {
+    },
+    _clamp_closure: function _clamp_closure() {
+    },
+    _floor_closure: function _floor_closure() {
+    },
+    _max_closure: function _max_closure() {
+    },
+    _min_closure: function _min_closure() {
+    },
+    _round_closure: function _round_closure() {
+    },
+    _hypot_closure: function _hypot_closure() {
+    },
+    _hypot__closure: function _hypot__closure() {
+    },
+    _log_closure: function _log_closure() {
+    },
+    _pow_closure: function _pow_closure() {
+    },
+    _atan2_closure: function _atan2_closure() {
+    },
+    _compatible_closure: function _compatible_closure() {
+    },
+    _isUnitless_closure: function _isUnitless_closure() {
+    },
+    _unit_closure: function _unit_closure() {
+    },
+    _percentage_closure: function _percentage_closure() {
+    },
+    _randomFunction_closure: function _randomFunction_closure() {
+    },
+    _div_closure: function _div_closure() {
+    },
+    _singleArgumentMathFunc_closure: function _singleArgumentMathFunc_closure(t0) {
+      this.mathFunc = t0;
+    },
+    _numberFunction_closure: function _numberFunction_closure(t0) {
+      this.transform = t0;
+    },
+    _function5($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:meta");
+    },
+    global_closure27: function global_closure27() {
+    },
+    global_closure28: function global_closure28() {
+    },
+    global_closure29: function global_closure29() {
+    },
+    global_closure30: function global_closure30() {
+    },
+    local_closure: function local_closure() {
+    },
+    local_closure0: function local_closure0() {
+    },
+    local__closure: function local__closure() {
+    },
+    local_closure1: function local_closure1() {
+    },
+    _prependParent(compound) {
+      var _0_3, _0_4, _0_4_isSet, rest, _null = null,
+        t1 = A.EvaluationContext_currentOrNull(),
+        span = (t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan(),
+        _0_0 = compound.components;
+      $label0$0: {
+        _0_3 = _0_0.length >= 1;
+        if (_0_3) {
+          _0_4 = _0_0[0];
+          t1 = _0_4;
+          t1 = t1 instanceof A.UniversalSelector;
+        } else {
+          _0_4 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _null;
+          break $label0$0;
+        }
+        if (_0_3) {
+          t1 = _0_4;
+          if (t1 instanceof A.TypeSelector) {
+            t1 = _0_4;
+            t1 = type$.TypeSelector._as(t1).name.namespace != null;
+            _0_4_isSet = true;
+          } else {
+            _0_4_isSet = true;
+            t1 = false;
+          }
+        } else {
+          _0_4_isSet = _0_3;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _null;
+          break $label0$0;
+        }
+        if (_0_3) {
+          if (_0_4_isSet)
+            t1 = _0_4;
+          else {
+            _0_4 = _0_0[0];
+            t1 = _0_4;
+            _0_4_isSet = true;
+          }
+          t1 = t1 instanceof A.TypeSelector;
+        } else
+          t1 = false;
+        if (t1) {
+          t1 = _0_4_isSet ? _0_4 : _0_0[0];
+          type$.TypeSelector._as(t1);
+          rest = B.JSArray_methods.sublist$1(_0_0, 1);
+          t1 = A._setArrayType([new A.ParentSelector(t1.name.name, span)], type$.JSArray_SimpleSelector);
+          B.JSArray_methods.addAll$1(t1, rest);
+          t1 = A.CompoundSelector$(t1, span);
+          break $label0$0;
+        }
+        t1 = A._setArrayType([new A.ParentSelector(_null, span)], type$.JSArray_SimpleSelector);
+        B.JSArray_methods.addAll$1(t1, _0_0);
+        t1 = A.CompoundSelector$(t1, span);
+        break $label0$0;
+      }
+      return t1;
+    },
+    _function0($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:selector");
+    },
+    _nest_closure: function _nest_closure() {
+    },
+    _nest__closure: function _nest__closure(t0) {
+      this._box_0 = t0;
+    },
+    _nest__closure0: function _nest__closure0() {
+    },
+    _append_closure: function _append_closure() {
+    },
+    _append__closure: function _append__closure() {
+    },
+    _append__closure0: function _append__closure0(t0) {
+      this.span = t0;
+    },
+    _append___closure: function _append___closure(t0, t1) {
+      this.parent = t0;
+      this.span = t1;
+    },
+    _extend_closure: function _extend_closure() {
+    },
+    _replace_closure: function _replace_closure() {
+    },
+    _unify_closure: function _unify_closure() {
+    },
+    _isSuperselector_closure: function _isSuperselector_closure() {
+    },
+    _simpleSelectors_closure: function _simpleSelectors_closure() {
+    },
+    _simpleSelectors__closure: function _simpleSelectors__closure() {
+    },
+    _parse_closure: function _parse_closure() {
+    },
+    _codepointForIndex(index, lengthInCodepoints, allowNegative) {
+      var result;
+      if (index === 0)
+        return 0;
+      if (index > 0)
+        return Math.min(index - 1, lengthInCodepoints);
+      result = lengthInCodepoints + index;
+      if (result < 0 && !allowNegative)
+        return 0;
+      return result;
+    },
+    _function($name, $arguments, callback) {
+      return A.BuiltInCallable$function($name, $arguments, callback, "sass:string");
+    },
+    module_closure: function module_closure() {
+    },
+    module__closure: function module__closure(t0) {
+      this.string = t0;
+    },
+    module__closure0: function module__closure0(t0) {
+      this.string = t0;
+    },
+    _unquote_closure: function _unquote_closure() {
+    },
+    _quote_closure: function _quote_closure() {
+    },
+    _length_closure: function _length_closure() {
+    },
+    _insert_closure: function _insert_closure() {
+    },
+    _index_closure: function _index_closure() {
+    },
+    _slice_closure: function _slice_closure() {
+    },
+    _toUpperCase_closure: function _toUpperCase_closure() {
+    },
+    _toLowerCase_closure: function _toLowerCase_closure() {
+    },
+    _uniqueId_closure: function _uniqueId_closure() {
+    },
+    ImportCache$(importers, loadPaths, logger) {
+      var t1 = type$.nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl,
+        t2 = type$.Record_3_Importer_and_Uri_and_bool_forImport,
+        t3 = type$.Uri,
+        t4 = A.ImportCache__toImporters(importers, loadPaths, null);
+      return new A.ImportCache(t4, logger, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.nullable_Stylesheet), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.ImporterResult));
+    },
+    ImportCache__toImporters(importers, loadPaths, packageConfig) {
+      var t1, t2, t3, t4, _i, path, _null = null,
+        sassPath = A.getEnvironmentVariable("SASS_PATH");
+      if (A.isBrowser()) {
+        t1 = A._setArrayType([], type$.JSArray_Importer);
+        B.JSArray_methods.addAll$1(t1, importers);
+        return t1;
+      }
+      t1 = A._setArrayType([], type$.JSArray_Importer);
+      B.JSArray_methods.addAll$1(t1, importers);
+      for (t2 = J.get$iterator$ax(loadPaths); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push(new A.FilesystemImporter($.$get$context().absolute$15(t3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+      }
+      if (sassPath != null) {
+        t2 = A.isNodeJs() ? self.process : _null;
+        t3 = sassPath.split(J.$eq$(t2 == null ? _null : J.get$platform$x(t2), "win32") ? ";" : ":");
+        t4 = t3.length;
+        _i = 0;
+        for (; _i < t4; ++_i) {
+          path = t3[_i];
+          t1.push(new A.FilesystemImporter($.$get$context().absolute$15(path, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+        }
+      }
+      return t1;
+    },
+    ImportCache: function ImportCache(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._importers = t0;
+      _._logger = t1;
+      _._canonicalizeCache = t2;
+      _._perImporterCanonicalizeCache = t3;
+      _._nonCanonicalRelativeUrls = t4;
+      _._importCache = t5;
+      _._resultsCache = t6;
+    },
+    ImportCache_canonicalize_closure: function ImportCache_canonicalize_closure(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.baseImporter = t1;
+      _.resolvedUrl = t2;
+      _.baseUrl = t3;
+      _.forImport = t4;
+      _.key = t5;
+      _.url = t6;
+    },
+    ImportCache__canonicalize_closure: function ImportCache__canonicalize_closure(t0, t1) {
+      this.importer = t0;
+      this.url = t1;
+    },
+    ImportCache_importCanonical_closure: function ImportCache_importCanonical_closure(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.canonicalUrl = t2;
+      _.originalUrl = t3;
+      _.quiet = t4;
+    },
+    ImportCache_humanize_closure: function ImportCache_humanize_closure(t0) {
+      this.canonicalUrl = t0;
+    },
+    ImportCache_humanize_closure0: function ImportCache_humanize_closure0() {
+    },
+    ImportCache_humanize_closure1: function ImportCache_humanize_closure1() {
+    },
+    ImportCache_humanize_closure2: function ImportCache_humanize_closure2(t0) {
+      this.canonicalUrl = t0;
+    },
+    ImportCache_clearCanonicalize_closure: function ImportCache_clearCanonicalize_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    Importer: function Importer() {
+    },
+    AsyncImporter: function AsyncImporter() {
+    },
+    CanonicalizeContext: function CanonicalizeContext(t0, t1) {
+      this._fromImport = t0;
+      this._containingUrl = t1;
+      this._wasContainingUrlAccessed = false;
+    },
+    FilesystemImporter: function FilesystemImporter(t0, t1) {
+      this._loadPath = t0;
+      this._loadPathDeprecated = t1;
+    },
+    FilesystemImporter_canonicalize_closure: function FilesystemImporter_canonicalize_closure() {
+    },
+    NoOpImporter: function NoOpImporter() {
+    },
+    NodePackageImporter: function NodePackageImporter() {
+      this.__NodePackageImporter__entryPointDirectory_F = $;
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure: function NodePackageImporter__nodePackageExportsResolve_closure() {
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure0: function NodePackageImporter__nodePackageExportsResolve_closure0() {
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure1: function NodePackageImporter__nodePackageExportsResolve_closure1() {
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure2: function NodePackageImporter__nodePackageExportsResolve_closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.exports = t1;
+      this.packageRoot = t2;
+    },
+    NodePackageImporter__nodePackageExportsResolve__closure: function NodePackageImporter__nodePackageExportsResolve__closure(t0, t1, t2) {
+      this.$this = t0;
+      this.variant = t1;
+      this.packageRoot = t2;
+    },
+    NodePackageImporter__nodePackageExportsResolve__closure0: function NodePackageImporter__nodePackageExportsResolve__closure0() {
+    },
+    NodePackageImporter__getMainExport_closure: function NodePackageImporter__getMainExport_closure() {
+    },
+    ImporterResult: function ImporterResult(t0, t1, t2) {
+      this.contents = t0;
+      this._sourceMapUrl = t1;
+      this.syntax = t2;
+    },
+    fromImport() {
+      var t1 = type$.nullable_CanonicalizeContext._as($.Zone__current.$index(0, B.Symbol__canonicalizeContext));
+      t1 = t1 == null ? null : t1._fromImport;
+      return t1 === true;
+    },
+    canonicalizeContext() {
+      var t1,
+        _0_0 = $.Zone__current.$index(0, B.Symbol__canonicalizeContext);
+      $label0$0: {
+        if (_0_0 == null)
+          A.throwExpression(A.StateError$(string$.canoni));
+        if (_0_0 instanceof A.CanonicalizeContext) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.StateError$(string$.Unexpe + A.S(_0_0) + "."));
+      }
+      return t1;
+    },
+    resolveImportPath(path) {
+      var t1,
+        extension = A.ParsedPath_ParsedPath$parse(path, $.$get$context().style)._splitExtension$1(1)[1];
+      if (extension === ".sass" || extension === ".scss" || extension === ".css") {
+        t1 = A.fromImport() ? new A.resolveImportPath_closure(path, extension).call$0() : null;
+        return t1 == null ? A._exactlyOne(A._tryPath(path)) : t1;
+      }
+      t1 = A.fromImport() ? new A.resolveImportPath_closure0(path).call$0() : null;
+      if (t1 == null)
+        t1 = A._exactlyOne(A._tryPathWithExtensions(path));
+      return t1 == null ? A._tryPathAsDirectory(path) : t1;
+    },
+    _tryPathWithExtensions(path) {
+      var result = A._tryPath(path + ".sass");
+      B.JSArray_methods.addAll$1(result, A._tryPath(path + ".scss"));
+      return result.length !== 0 ? result : A._tryPath(path + ".css");
+    },
+    _tryPath(path) {
+      var t1 = $.$get$context(),
+        partial = A.join(t1.dirname$1(path), "_" + A.ParsedPath_ParsedPath$parse(path, t1.style).get$basename(), null);
+      t1 = A._setArrayType([], type$.JSArray_String);
+      if (A.fileExists(partial))
+        t1.push(partial);
+      if (A.fileExists(path))
+        t1.push(path);
+      return t1;
+    },
+    _tryPathAsDirectory(path) {
+      var t1;
+      if (!A.dirExists(path))
+        return null;
+      t1 = A.fromImport() ? new A._tryPathAsDirectory_closure(path).call$0() : null;
+      return t1 == null ? A._exactlyOne(A._tryPathWithExtensions(A.join(path, "index", null))) : t1;
+    },
+    _exactlyOne(paths) {
+      var _0_1, t1, path;
+      $label0$0: {
+        _0_1 = paths.length;
+        if (_0_1 <= 0) {
+          t1 = null;
+          break $label0$0;
+        }
+        if (_0_1 === 1) {
+          path = paths[0];
+          t1 = path;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(string$.It_s_n + B.JSArray_methods.map$1$1(paths, new A._exactlyOne_closure(), type$.String).join$1(0, "\n"));
+      }
+      return t1;
+    },
+    resolveImportPath_closure: function resolveImportPath_closure(t0, t1) {
+      this.path = t0;
+      this.extension = t1;
+    },
+    resolveImportPath_closure0: function resolveImportPath_closure0(t0) {
+      this.path = t0;
+    },
+    _tryPathAsDirectory_closure: function _tryPathAsDirectory_closure(t0) {
+      this.path = t0;
+    },
+    _exactlyOne_closure: function _exactlyOne_closure() {
+    },
+    InterpolationBuffer: function InterpolationBuffer(t0, t1) {
+      this._interpolation_buffer$_text = t0;
+      this._interpolation_buffer$_contents = t1;
+    },
+    InterpolationMap$(_interpolation, targetLocations) {
+      var t1 = A.List_List$unmodifiable(targetLocations, type$.SourceLocation),
+        t2 = _interpolation.contents.length,
+        expectedLocations = Math.max(0, t2 - 1);
+      if (t1.length !== expectedLocations)
+        A.throwExpression(A.ArgumentError$("InterpolationMap must have " + A.S(expectedLocations) + string$.x20targe + t2 + " components.", null));
+      return new A.InterpolationMap(_interpolation, t1);
+    },
+    InterpolationMap: function InterpolationMap(t0, t1) {
+      this._interpolation = t0;
+      this._targetLocations = t1;
+    },
+    InterpolationMap_mapException_closure: function InterpolationMap_mapException_closure() {
+    },
+    _realCasePath(path) {
+      var prefix, _null = null,
+        t1 = A.isNodeJs() ? self.process : _null;
+      if (!J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "win32")) {
+        t1 = A.isNodeJs() ? self.process : _null;
+        t1 = J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "darwin");
+      } else
+        t1 = true;
+      if (!t1)
+        return path;
+      t1 = A.isNodeJs() ? self.process : _null;
+      if (J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "win32")) {
+        prefix = B.JSString_methods.substring$2(path, 0, $.$get$context().style.rootLength$1(path));
+        t1 = prefix.length;
+        if (t1 !== 0 && A.CharacterExtension_get_isAlphabetic(prefix.charCodeAt(0)))
+          path = prefix.toUpperCase() + B.JSString_methods.substring$1(path, t1);
+      }
+      return new A._realCasePath_helper().call$1(path);
+    },
+    _realCasePath_helper: function _realCasePath_helper() {
+    },
+    _realCasePath_helper_closure: function _realCasePath_helper_closure(t0, t1, t2) {
+      this.helper = t0;
+      this.dirname = t1;
+      this.path = t2;
+    },
+    _realCasePath_helper__closure: function _realCasePath_helper__closure(t0) {
+      this.basename = t0;
+    },
+    printError(message) {
+      var t1 = A.isNodeJs() ? self.process : null;
+      if (t1 != null) {
+        t1 = J.get$stderr$x(t1);
+        J.write$1$x(t1, A.S(message == null ? "" : message) + "\n");
+      } else {
+        t1 = self.console;
+        J.error$1$x(t1, message == null ? "" : message);
+      }
+    },
+    readFile(path) {
+      var contents, sourceFile, t1, i;
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("readFile() is only supported on Node.js"));
+      contents = A._asString(A._readFile(path, "utf8"));
+      if (!B.JSString_methods.contains$1(contents, "\ufffd"))
+        return contents;
+      sourceFile = A.SourceFile$fromString(contents, $.$get$context().toUri$1(path));
+      for (t1 = contents.length, i = 0; i < t1; ++i) {
+        if (contents.charCodeAt(i) !== 65533)
+          continue;
+        throw A.wrapException(A.SassException$("Invalid UTF-8.", A.FileLocation$_(sourceFile, i).pointSpan$0(), null));
+      }
+      return contents;
+    },
+    _readFile(path, encoding) {
+      return A._systemErrorToFileSystemException(new A._readFile_closure(path, encoding));
+    },
+    writeFile(path, contents) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("writeFile() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException(new A.writeFile_closure(path, contents));
+    },
+    deleteFile(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("deleteFile() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException(new A.deleteFile_closure(path));
+    },
+    readStdin() {
+      return A.readStdin$body();
+    },
+    readStdin$body() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, t3, completer, sink, t1, t2;
+      var $async$readStdin = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              t2 = A.isNodeJs() ? self.process : null;
+              if (t2 == null)
+                throw A.wrapException(A.UnsupportedError$("readStdin() is only supported on Node.js"));
+              t3 = new A._Future($.Zone__current, type$._Future_String);
+              completer = new A._AsyncCompleter(t3, type$._AsyncCompleter_String);
+              t1.contents = null;
+              sink = new A._StringCallbackSink(new A.readStdin_closure(t1, completer), new A.StringBuffer("")).asUtf8Sink$1(false);
+              t1 = J.getInterceptor$x(t2);
+              J.on$2$x(t1.get$stdin(t2), "data", A.allowInterop(new A.readStdin_closure0(sink)));
+              J.on$2$x(t1.get$stdin(t2), "end", A.allowInterop(new A.readStdin_closure1(sink)));
+              J.on$2$x(t1.get$stdin(t2), "error", A.allowInterop(new A.readStdin_closure2(completer)));
+              $async$returnValue = t3;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$readStdin, $async$completer);
+    },
+    fileExists(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$(string$.fileEx));
+      return A._systemErrorToFileSystemException(new A.fileExists_closure(path));
+    },
+    dirExists(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("dirExists() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException(new A.dirExists_closure(path));
+    },
+    ensureDir(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("ensureDir() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException(new A.ensureDir_closure(path));
+    },
+    listDir(path, recursive) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("listDir() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException(new A.listDir_closure(recursive, path));
+    },
+    modificationTime(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("modificationTime() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException(new A.modificationTime_closure(path));
+    },
+    getEnvironmentVariable($name) {
+      var t1 = A.isNodeJs() ? self.process : null,
+        env = t1 == null ? null : J.get$env$x(t1);
+      if (env == null)
+        t1 = null;
+      else
+        t1 = A._asStringQ(env[$name]);
+      return t1;
+    },
+    _systemErrorToFileSystemException(callback) {
+      var error, t1, exception, t2;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        if (!type$.JsSystemError._is(error))
+          throw exception;
+        t1 = error;
+        t2 = J.getInterceptor$x(t1);
+        throw A.wrapException(new A.FileSystemException(J.substring$2$s(t2.get$message(t1), (A.S(t2.get$code(t1)) + ": ").length, J.get$length$asx(t2.get$message(t1)) - (", " + A.S(t2.get$syscall(t1)) + " '" + A.S(t2.get$path(t1)) + "'").length), J.get$path$x(error)));
+      }
+    },
+    hasTerminal() {
+      var t1 = A.isNodeJs() ? self.process : null;
+      return J.$eq$(t1 == null ? null : J.get$isTTY$x(J.get$stdout$x(t1)), true);
+    },
+    isWindows() {
+      var t1 = A.isNodeJs() ? self.process : null;
+      return J.$eq$(t1 == null ? null : J.get$platform$x(t1), "win32");
+    },
+    watchDir(path, poll) {
+      var watcher, t2, t3, t1 = {};
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("watchDir() is only supported on Node.js"));
+      watcher = J.watch$2$x(self.chokidar, path, {disableGlobbing: true, usePolling: poll});
+      t1.controller = null;
+      t2 = J.getInterceptor$x(watcher);
+      t2.on$2(watcher, "add", A.allowInterop(new A.watchDir_closure(t1)));
+      t2.on$2(watcher, "change", A.allowInterop(new A.watchDir_closure0(t1)));
+      t2.on$2(watcher, "unlink", A.allowInterop(new A.watchDir_closure1(t1)));
+      t2.on$2(watcher, "error", A.allowInterop(new A.watchDir_closure2(t1)));
+      t3 = new A._Future($.Zone__current, type$._Future_Stream_WatchEvent);
+      t2.on$2(watcher, "ready", A.allowInterop(new A.watchDir_closure3(t1, watcher, new A._AsyncCompleter(t3, type$._AsyncCompleter_Stream_WatchEvent))));
+      return t3;
+    },
+    FileSystemException: function FileSystemException(t0, t1) {
+      this.message = t0;
+      this.path = t1;
+    },
+    _readFile_closure: function _readFile_closure(t0, t1) {
+      this.path = t0;
+      this.encoding = t1;
+    },
+    writeFile_closure: function writeFile_closure(t0, t1) {
+      this.path = t0;
+      this.contents = t1;
+    },
+    deleteFile_closure: function deleteFile_closure(t0) {
+      this.path = t0;
+    },
+    readStdin_closure: function readStdin_closure(t0, t1) {
+      this._box_0 = t0;
+      this.completer = t1;
+    },
+    readStdin_closure0: function readStdin_closure0(t0) {
+      this.sink = t0;
+    },
+    readStdin_closure1: function readStdin_closure1(t0) {
+      this.sink = t0;
+    },
+    readStdin_closure2: function readStdin_closure2(t0) {
+      this.completer = t0;
+    },
+    fileExists_closure: function fileExists_closure(t0) {
+      this.path = t0;
+    },
+    dirExists_closure: function dirExists_closure(t0) {
+      this.path = t0;
+    },
+    ensureDir_closure: function ensureDir_closure(t0) {
+      this.path = t0;
+    },
+    listDir_closure: function listDir_closure(t0, t1) {
+      this.recursive = t0;
+      this.path = t1;
+    },
+    listDir__closure: function listDir__closure(t0) {
+      this.path = t0;
+    },
+    listDir__closure0: function listDir__closure0() {
+    },
+    listDir_closure_list: function listDir_closure_list() {
+    },
+    listDir__list_closure: function listDir__list_closure(t0, t1) {
+      this.parent = t0;
+      this.list = t1;
+    },
+    modificationTime_closure: function modificationTime_closure(t0) {
+      this.path = t0;
+    },
+    watchDir_closure: function watchDir_closure(t0) {
+      this._box_0 = t0;
+    },
+    watchDir_closure0: function watchDir_closure0(t0) {
+      this._box_0 = t0;
+    },
+    watchDir_closure1: function watchDir_closure1(t0) {
+      this._box_0 = t0;
+    },
+    watchDir_closure2: function watchDir_closure2(t0) {
+      this._box_0 = t0;
+    },
+    watchDir_closure3: function watchDir_closure3(t0, t1, t2) {
+      this._box_0 = t0;
+      this.watcher = t1;
+      this.completer = t2;
+    },
+    watchDir__closure: function watchDir__closure(t0) {
+      this.watcher = t0;
+    },
+    JSArray0: function JSArray0() {
+    },
+    Chokidar: function Chokidar() {
+    },
+    ChokidarOptions: function ChokidarOptions() {
+    },
+    ChokidarWatcher: function ChokidarWatcher() {
+    },
+    JSFunction: function JSFunction() {
+    },
+    ImmutableList: function ImmutableList() {
+    },
+    ImmutableMap: function ImmutableMap() {
+    },
+    NodeImporterResult: function NodeImporterResult() {
+    },
+    RenderContext: function RenderContext() {
+    },
+    RenderContextOptions: function RenderContextOptions() {
+    },
+    RenderContextResult: function RenderContextResult() {
+    },
+    RenderContextResultStats: function RenderContextResultStats() {
+    },
+    JSModule: function JSModule() {
+    },
+    JSModuleRequire: function JSModuleRequire() {
+    },
+    JSClass: function JSClass() {
+    },
+    JSUrl: function JSUrl() {
+    },
+    jsThrow0(error) {
+      return type$.Never._as($.$get$_jsThrow0().call$1(error));
+    },
+    _PropertyDescriptor: function _PropertyDescriptor() {
+    },
+    _RequireMain: function _RequireMain() {
+    },
+    WarnForDeprecation_warnForDeprecation(_this, deprecation, message, span, trace) {
+      if (deprecation.isFuture && !(_this instanceof A.DeprecationProcessingLogger))
+        return;
+      if (_this instanceof A.DeprecationProcessingLogger)
+        _this.internalWarn$4$deprecation$span$trace(message, deprecation, span, trace);
+      else
+        _this.warn$4$deprecation$span$trace(0, message, true, span, trace);
+    },
+    LoggerWithDeprecationType0: function LoggerWithDeprecationType0() {
+    },
+    _QuietLogger: function _QuietLogger() {
+    },
+    DeprecationProcessingLogger$(_inner, fatalDeprecations, futureDeprecations, limitRepetition, silenceDeprecations) {
+      var t1 = new A.DeprecationProcessingLogger(A.LinkedHashMap_LinkedHashMap$_empty(type$.Deprecation, type$.int), _inner, silenceDeprecations, fatalDeprecations, futureDeprecations, limitRepetition);
+      t1.DeprecationProcessingLogger$5$fatalDeprecations$futureDeprecations$limitRepetition$silenceDeprecations(_inner, fatalDeprecations, futureDeprecations, limitRepetition, silenceDeprecations);
+      return t1;
+    },
+    DeprecationProcessingLogger: function DeprecationProcessingLogger(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._warningCounts = t0;
+      _._inner = t1;
+      _.silenceDeprecations = t2;
+      _.fatalDeprecations = t3;
+      _.futureDeprecations = t4;
+      _.limitRepetition = t5;
+    },
+    DeprecationProcessingLogger_summarize_closure: function DeprecationProcessingLogger_summarize_closure() {
+    },
+    DeprecationProcessingLogger_summarize_closure0: function DeprecationProcessingLogger_summarize_closure0() {
+    },
+    StderrLogger: function StderrLogger(t0) {
+      this.color = t0;
+    },
+    TrackingLogger: function TrackingLogger(t0) {
+      this._tracking$_logger = t0;
+      this._emittedDebug = this._emittedWarning = false;
+    },
+    BuiltInModule$($name, functions, mixins, variables, $T) {
+      var t1 = A._Uri__Uri(null, $name, null, "sass"),
+        t2 = A.BuiltInModule__callableMap(functions, $T),
+        t3 = A.BuiltInModule__callableMap(mixins, $T),
+        t4 = variables == null ? B.Map_empty5 : new A.UnmodifiableMapView(variables, type$.UnmodifiableMapView_String_Value);
+      return new A.BuiltInModule(t1, t2, t3, t4, $T._eval$1("BuiltInModule<0>"));
+    },
+    BuiltInModule__callableMap(callables, $T) {
+      var t2, _i, callable,
+        t1 = type$.String;
+      if (callables == null)
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, $T);
+      else {
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, $T);
+        for (t2 = callables.length, _i = 0; _i < callables.length; callables.length === t2 || (0, A.throwConcurrentModificationError)(callables), ++_i) {
+          callable = callables[_i];
+          t1.$indexSet(0, J.get$name$x(callable), callable);
+        }
+        t1 = new A.UnmodifiableMapView(t1, type$.$env_1_1_String._bind$1($T)._eval$1("UnmodifiableMapView<1,2>"));
+      }
+      return new A.UnmodifiableMapView(t1, type$.$env_1_1_String._bind$1($T)._eval$1("UnmodifiableMapView<1,2>"));
+    },
+    BuiltInModule: function BuiltInModule(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.url = t0;
+      _.functions = t1;
+      _.mixins = t2;
+      _.variables = t3;
+      _.$ti = t4;
+    },
+    ForwardedModuleView_ifNecessary(inner, rule, $T) {
+      var t1;
+      if (rule.prefix == null)
+        if (rule.shownMixinsAndFunctions == null)
+          if (rule.shownVariables == null) {
+            t1 = rule.hiddenMixinsAndFunctions;
+            t1 = t1 == null ? null : t1._base.get$isEmpty(0);
+            if (t1 === true) {
+              t1 = rule.hiddenVariables;
+              t1 = t1 == null ? null : t1._base.get$isEmpty(0);
+              t1 = t1 === true;
+            } else
+              t1 = false;
+          } else
+            t1 = false;
+        else
+          t1 = false;
+      else
+        t1 = false;
+      if (t1)
+        return inner;
+      else
+        return A.ForwardedModuleView$(inner, rule, $T);
+    },
+    ForwardedModuleView$(_inner, _rule, $T) {
+      var t1 = _rule.prefix,
+        t2 = _rule.shownVariables,
+        t3 = _rule.hiddenVariables,
+        t4 = _rule.shownMixinsAndFunctions,
+        t5 = _rule.hiddenMixinsAndFunctions;
+      return new A.ForwardedModuleView(_inner, _rule, A.ForwardedModuleView__forwardedMap(_inner.get$variables(), t1, t2, t3, type$.Value), A.ForwardedModuleView__forwardedMap(_inner.get$variableNodes(), t1, t2, t3, type$.AstNode), A.ForwardedModuleView__forwardedMap(_inner.get$functions(_inner), t1, t4, t5, $T), A.ForwardedModuleView__forwardedMap(_inner.get$mixins(), t1, t4, t5, $T), $T._eval$1("ForwardedModuleView<0>"));
+    },
+    ForwardedModuleView__forwardedMap(map, prefix, safelist, blocklist, $V) {
+      var t2,
+        t1 = prefix == null;
+      if (t1)
+        if (safelist == null)
+          t2 = blocklist == null || blocklist._base.get$isEmpty(0);
+        else
+          t2 = false;
+      else
+        t2 = false;
+      if (t2)
+        return map;
+      if (!t1)
+        map = new A.PrefixedMapView(map, prefix, $V._eval$1("PrefixedMapView<0>"));
+      if (safelist != null)
+        map = new A.LimitedMapView(map, safelist._base.intersection$1(new A.MapKeySet(map, type$.MapKeySet_nullable_Object)), type$.$env_1_1_String._bind$1($V)._eval$1("LimitedMapView<1,2>"));
+      else if (blocklist != null && blocklist._base.get$isNotEmpty(0))
+        map = A.LimitedMapView$blocklist(map, blocklist, type$.String, $V);
+      return map;
+    },
+    ForwardedModuleView: function ForwardedModuleView(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._forwarded_view$_inner = t0;
+      _._rule = t1;
+      _.variables = t2;
+      _.variableNodes = t3;
+      _.functions = t4;
+      _.mixins = t5;
+      _.$ti = t6;
+    },
+    ShadowedModuleView_ifNecessary(inner, functions, mixins, variables, $T) {
+      return A.ShadowedModuleView__needsBlocklist(inner.get$variables(), variables) || A.ShadowedModuleView__needsBlocklist(inner.get$functions(inner), functions) || A.ShadowedModuleView__needsBlocklist(inner.get$mixins(), mixins) ? new A.ShadowedModuleView(inner, A.ShadowedModuleView__shadowedMap(inner.get$variables(), variables, type$.Value), A.ShadowedModuleView__shadowedMap(inner.get$variableNodes(), variables, type$.AstNode), A.ShadowedModuleView__shadowedMap(inner.get$functions(inner), functions, $T), A.ShadowedModuleView__shadowedMap(inner.get$mixins(), mixins, $T), $T._eval$1("ShadowedModuleView<0>")) : null;
+    },
+    ShadowedModuleView__shadowedMap(map, blocklist, $V) {
+      var t1 = A.ShadowedModuleView__needsBlocklist(map, blocklist);
+      return !t1 ? map : A.LimitedMapView$blocklist(map, blocklist, type$.String, $V);
+    },
+    ShadowedModuleView__needsBlocklist(map, blocklist) {
+      return map.get$isNotEmpty(map) && blocklist.any$1(0, map.get$containsKey());
+    },
+    ShadowedModuleView: function ShadowedModuleView(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._shadowed_view$_inner = t0;
+      _.variables = t1;
+      _.variableNodes = t2;
+      _.functions = t3;
+      _.mixins = t4;
+      _.$ti = t5;
+    },
+    AtRootQueryParser$(contents, logger, url) {
+      var t1 = A.SpanScanner$(contents, url);
+      return new A.AtRootQueryParser(t1, logger, null);
+    },
+    AtRootQueryParser: function AtRootQueryParser(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._interpolationMap = t2;
+    },
+    AtRootQueryParser_parse_closure: function AtRootQueryParser_parse_closure(t0) {
+      this.$this = t0;
+    },
+    _disallowedFunctionNames_closure: function _disallowedFunctionNames_closure() {
+    },
+    CssParser: function CssParser(t0, t1, t2, t3) {
+      var _ = this;
+      _._isUseAllowed = true;
+      _._inExpression = _._inParentheses = _._inStyleRule = _._stylesheet$_inUnknownAtRule = _._inControlDirective = _._inContentBlock = _._stylesheet$_inMixin = false;
+      _._globalVariables = t0;
+      _.lastSilentComment = null;
+      _.scanner = t1;
+      _.logger = t2;
+      _._interpolationMap = t3;
+    },
+    KeyframeSelectorParser$(contents, interpolationMap, logger) {
+      var t1 = A.SpanScanner$(contents, null);
+      return new A.KeyframeSelectorParser(t1, logger, interpolationMap);
+    },
+    KeyframeSelectorParser: function KeyframeSelectorParser(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._interpolationMap = t2;
+    },
+    KeyframeSelectorParser_parse_closure: function KeyframeSelectorParser_parse_closure(t0) {
+      this.$this = t0;
+    },
+    MediaQueryParser: function MediaQueryParser(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._interpolationMap = t2;
+    },
+    MediaQueryParser_parse_closure: function MediaQueryParser_parse_closure(t0) {
+      this.$this = t0;
+    },
+    Parser_isIdentifier(text) {
+      var t1, t2, exception, logger = null;
+      try {
+        t1 = logger;
+        t2 = A.SpanScanner$(text, null);
+        new A.Parser(t2, t1 == null ? B.StderrLogger_false : t1, null)._parseIdentifier$0();
+        return true;
+      } catch (exception) {
+        if (type$.SassFormatException._is(A.unwrapException(exception)))
+          return false;
+        else
+          throw exception;
+      }
+    },
+    Parser: function Parser(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._interpolationMap = t2;
+    },
+    Parser__parseIdentifier_closure: function Parser__parseIdentifier_closure(t0) {
+      this.$this = t0;
+    },
+    Parser_escape_closure: function Parser_escape_closure() {
+    },
+    Parser_scanIdentChar_matches: function Parser_scanIdentChar_matches(t0, t1) {
+      this.caseSensitive = t0;
+      this.char = t1;
+    },
+    Parser_spanFrom_closure: function Parser_spanFrom_closure(t0, t1) {
+      this.$this = t0;
+      this.span = t1;
+    },
+    SassParser: function SassParser(t0, t1, t2, t3) {
+      var _ = this;
+      _._currentIndentation = 0;
+      _._spaces = _._nextIndentationEnd = _._nextIndentation = null;
+      _._isUseAllowed = true;
+      _._inExpression = _._inParentheses = _._inStyleRule = _._stylesheet$_inUnknownAtRule = _._inControlDirective = _._inContentBlock = _._stylesheet$_inMixin = false;
+      _._globalVariables = t0;
+      _.lastSilentComment = null;
+      _.scanner = t1;
+      _.logger = t2;
+      _._interpolationMap = t3;
+    },
+    SassParser_styleRuleSelector_closure: function SassParser_styleRuleSelector_closure() {
+    },
+    SassParser_children_closure: function SassParser_children_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.child = t1;
+      this.children = t2;
+    },
+    SassParser__peekIndentation_closure: function SassParser__peekIndentation_closure() {
+    },
+    SassParser__peekIndentation_closure0: function SassParser__peekIndentation_closure0() {
+    },
+    ScssParser$(contents, logger, url) {
+      var t1 = A.SpanScanner$(contents, url),
+        t2 = logger == null ? B.StderrLogger_false : logger;
+      return new A.ScssParser(A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.VariableDeclaration), t1, t2, null);
+    },
+    ScssParser: function ScssParser(t0, t1, t2, t3) {
+      var _ = this;
+      _._isUseAllowed = true;
+      _._inExpression = _._inParentheses = _._inStyleRule = _._stylesheet$_inUnknownAtRule = _._inControlDirective = _._inContentBlock = _._stylesheet$_inMixin = false;
+      _._globalVariables = t0;
+      _.lastSilentComment = null;
+      _.scanner = t1;
+      _.logger = t2;
+      _._interpolationMap = t3;
+    },
+    SelectorParser$(contents, allowParent, interpolationMap, logger, plainCss, url) {
+      var t1 = A.SpanScanner$(contents, url);
+      return new A.SelectorParser(allowParent, plainCss, t1, logger == null ? B.StderrLogger_false : logger, interpolationMap);
+    },
+    SelectorParser: function SelectorParser(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._allowParent = t0;
+      _._plainCss = t1;
+      _.scanner = t2;
+      _.logger = t3;
+      _._interpolationMap = t4;
+    },
+    SelectorParser_parse_closure: function SelectorParser_parse_closure(t0) {
+      this.$this = t0;
+    },
+    SelectorParser_parseCompoundSelector_closure: function SelectorParser_parseCompoundSelector_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser: function StylesheetParser() {
+    },
+    StylesheetParser_parse_closure: function StylesheetParser_parse_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_parse__closure: function StylesheetParser_parse__closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_parse__closure0: function StylesheetParser_parse__closure0() {
+    },
+    StylesheetParser_parseArgumentDeclaration_closure: function StylesheetParser_parseArgumentDeclaration_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_parseVariableDeclaration_closure: function StylesheetParser_parseVariableDeclaration_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_parseUseRule_closure: function StylesheetParser_parseUseRule_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser__parseSingleProduction_closure: function StylesheetParser__parseSingleProduction_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.production = t1;
+      this.T = t2;
+    },
+    StylesheetParser__statement_closure: function StylesheetParser__statement_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_variableDeclarationWithoutNamespace_closure: function StylesheetParser_variableDeclarationWithoutNamespace_closure(t0, t1) {
+      this.$this = t0;
+      this.start = t1;
+    },
+    StylesheetParser_variableDeclarationWithoutNamespace_closure0: function StylesheetParser_variableDeclarationWithoutNamespace_closure0(t0) {
+      this.declaration = t0;
+    },
+    StylesheetParser__styleRule_closure: function StylesheetParser__styleRule_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.wasInStyleRule = t2;
+      _.start = t3;
+    },
+    StylesheetParser__tryDeclarationChildren_closure: function StylesheetParser__tryDeclarationChildren_closure(t0, t1) {
+      this.name = t0;
+      this.value = t1;
+    },
+    StylesheetParser__atRootRule_closure: function StylesheetParser__atRootRule_closure(t0) {
+      this.query = t0;
+    },
+    StylesheetParser__atRootRule_closure0: function StylesheetParser__atRootRule_closure0() {
+    },
+    StylesheetParser__eachRule_closure: function StylesheetParser__eachRule_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.wasInControlDirective = t1;
+      _.variables = t2;
+      _.list = t3;
+    },
+    StylesheetParser__functionRule_closure: function StylesheetParser__functionRule_closure(t0, t1, t2) {
+      this.name = t0;
+      this.$arguments = t1;
+      this.precedingComment = t2;
+    },
+    StylesheetParser__forRule_closure: function StylesheetParser__forRule_closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    StylesheetParser__forRule_closure0: function StylesheetParser__forRule_closure0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.wasInControlDirective = t2;
+      _.variable = t3;
+      _.from = t4;
+      _.to = t5;
+    },
+    StylesheetParser__memberList_closure: function StylesheetParser__memberList_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.variables = t1;
+      this.identifiers = t2;
+    },
+    StylesheetParser__includeRule_closure: function StylesheetParser__includeRule_closure(t0) {
+      this.contentArguments_ = t0;
+    },
+    StylesheetParser_mediaRule_closure: function StylesheetParser_mediaRule_closure(t0) {
+      this.query = t0;
+    },
+    StylesheetParser__mixinRule_closure: function StylesheetParser__mixinRule_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.name = t1;
+      _.$arguments = t2;
+      _.precedingComment = t3;
+    },
+    StylesheetParser_mozDocumentRule_closure: function StylesheetParser_mozDocumentRule_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.name = t2;
+      _.value = t3;
+    },
+    StylesheetParser_supportsRule_closure: function StylesheetParser_supportsRule_closure(t0) {
+      this.condition = t0;
+    },
+    StylesheetParser__whileRule_closure: function StylesheetParser__whileRule_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.wasInControlDirective = t1;
+      this.condition = t2;
+    },
+    StylesheetParser_unknownAtRule_closure: function StylesheetParser_unknownAtRule_closure(t0, t1) {
+      this._box_0 = t0;
+      this.name = t1;
+    },
+    StylesheetParser__expression_resetState: function StylesheetParser__expression_resetState(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.start = t2;
+    },
+    StylesheetParser__expression_resolveOneOperation: function StylesheetParser__expression_resolveOneOperation(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    StylesheetParser__expression_resolveOperations: function StylesheetParser__expression_resolveOperations(t0, t1) {
+      this._box_0 = t0;
+      this.resolveOneOperation = t1;
+    },
+    StylesheetParser__expression_addSingleExpression: function StylesheetParser__expression_addSingleExpression(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.resetState = t2;
+      _.resolveOperations = t3;
+    },
+    StylesheetParser__expression_addOperator: function StylesheetParser__expression_addOperator(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.resolveOneOperation = t2;
+    },
+    StylesheetParser__expression_resolveSpaceExpressions: function StylesheetParser__expression_resolveSpaceExpressions(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.resolveOperations = t2;
+    },
+    StylesheetParser_expressionUntilComma_closure: function StylesheetParser_expressionUntilComma_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser__isHexColor_closure: function StylesheetParser__isHexColor_closure() {
+    },
+    StylesheetParser__unicodeRange_closure: function StylesheetParser__unicodeRange_closure() {
+    },
+    StylesheetParser__unicodeRange_closure0: function StylesheetParser__unicodeRange_closure0() {
+    },
+    StylesheetParser_namespacedExpression_closure: function StylesheetParser_namespacedExpression_closure(t0, t1) {
+      this.$this = t0;
+      this.start = t1;
+    },
+    StylesheetParser_trySpecialFunction_closure: function StylesheetParser_trySpecialFunction_closure() {
+    },
+    StylesheetParser__expressionUntilComparison_closure: function StylesheetParser__expressionUntilComparison_closure(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser__publicIdentifier_closure: function StylesheetParser__publicIdentifier_closure(t0, t1) {
+      this.$this = t0;
+      this.start = t1;
+    },
+    StylesheetNode$_(_stylesheet, importer, canonicalUrl, allUpstream) {
+      var t1 = new A.StylesheetNode(_stylesheet, importer, canonicalUrl, allUpstream._1, allUpstream._0, A.LinkedHashSet_LinkedHashSet$_empty(type$.StylesheetNode));
+      t1.StylesheetNode$_$4(_stylesheet, importer, canonicalUrl, allUpstream);
+      return t1;
+    },
+    StylesheetGraph: function StylesheetGraph(t0, t1, t2) {
+      this._nodes = t0;
+      this.importCache = t1;
+      this._transitiveModificationTimes = t2;
+    },
+    StylesheetGraph_modifiedSince_transitiveModificationTime: function StylesheetGraph_modifiedSince_transitiveModificationTime(t0) {
+      this.$this = t0;
+    },
+    StylesheetGraph_modifiedSince_transitiveModificationTime_closure: function StylesheetGraph_modifiedSince_transitiveModificationTime_closure(t0, t1) {
+      this.node = t0;
+      this.transitiveModificationTime = t1;
+    },
+    StylesheetGraph__add_closure: function StylesheetGraph__add_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.url = t1;
+      _.baseImporter = t2;
+      _.baseUrl = t3;
+    },
+    StylesheetGraph_addCanonical_closure: function StylesheetGraph_addCanonical_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.canonicalUrl = t2;
+      _.originalUrl = t3;
+    },
+    StylesheetGraph_reload_closure: function StylesheetGraph_reload_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.canonicalUrl = t2;
+    },
+    StylesheetGraph__nodeFor_closure: function StylesheetGraph__nodeFor_closure(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.url = t1;
+      _.baseImporter = t2;
+      _.baseUrl = t3;
+      _.forImport = t4;
+    },
+    StylesheetGraph__nodeFor_closure0: function StylesheetGraph__nodeFor_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    StylesheetNode: function StylesheetNode(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._stylesheet = t0;
+      _.importer = t1;
+      _.canonicalUrl = t2;
+      _._upstream = t3;
+      _._upstreamImports = t4;
+      _._downstream = t5;
+    },
+    Syntax_forPath(path) {
+      var t1,
+        _0_0 = A.ParsedPath_ParsedPath$parse(path, $.$get$context().style)._splitExtension$1(1)[1];
+      $label0$0: {
+        if (".sass" === _0_0) {
+          t1 = B.Syntax_Sass_sass;
+          break $label0$0;
+        }
+        if (".css" === _0_0) {
+          t1 = B.Syntax_CSS_css;
+          break $label0$0;
+        }
+        t1 = B.Syntax_SCSS_scss;
+        break $label0$0;
+      }
+      return t1;
+    },
+    Syntax: function Syntax(t0, t1) {
+      this._syntax$_name = t0;
+      this._name = t1;
+    },
+    Box: function Box(t0, t1) {
+      this._box$_inner = t0;
+      this.$ti = t1;
+    },
+    ModifiableBox: function ModifiableBox(t0, t1) {
+      this.value = t0;
+      this.$ti = t1;
+    },
+    LazyFileSpan: function LazyFileSpan(t0) {
+      this._builder = t0;
+      this._lazy_file_span$_span = null;
+    },
+    LimitedMapView$blocklist(_map, blocklist, $K, $V) {
+      var t2, key,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty($K);
+      for (t2 = J.get$iterator$ax(_map.get$keys(_map)); t2.moveNext$0();) {
+        key = t2.get$current(t2);
+        if (!blocklist.contains$1(0, key))
+          t1.add$1(0, key);
+      }
+      return new A.LimitedMapView(_map, t1, $K._eval$1("@<0>")._bind$1($V)._eval$1("LimitedMapView<1,2>"));
+    },
+    LimitedMapView: function LimitedMapView(t0, t1, t2) {
+      this._limited_map_view$_map = t0;
+      this._limited_map_view$_keys = t1;
+      this.$ti = t2;
+    },
+    MapExtensions_get_pairs(_this, $K, $V) {
+      return _this.get$entries(_this).map$1$1(0, new A.MapExtensions_get_pairs_closure($K, $V), $K._eval$1("@<0>")._bind$1($V)._eval$1("+(1,2)"));
+    },
+    MapExtensions_get_pairs_closure: function MapExtensions_get_pairs_closure(t0, t1) {
+      this.K = t0;
+      this.V = t1;
+    },
+    MergedMapView$(maps, $K, $V) {
+      var t1 = $K._eval$1("@<0>")._bind$1($V);
+      t1 = new A.MergedMapView(A.LinkedHashMap_LinkedHashMap$_empty($K, t1._eval$1("Map<1,2>")), t1._eval$1("MergedMapView<1,2>"));
+      t1.MergedMapView$1(maps, $K, $V);
+      return t1;
+    },
+    MergedMapView: function MergedMapView(t0, t1) {
+      this._mapsByKey = t0;
+      this.$ti = t1;
+    },
+    MultiDirWatcher: function MultiDirWatcher(t0, t1, t2) {
+      this._watchers = t0;
+      this._group = t1;
+      this._poll = t2;
+    },
+    MultiSpan: function MultiSpan(t0, t1, t2) {
+      this._multi_span$_primary = t0;
+      this.primaryLabel = t1;
+      this.secondarySpans = t2;
+    },
+    NoSourceMapBuffer: function NoSourceMapBuffer(t0) {
+      this._no_source_map_buffer$_buffer = t0;
+    },
+    PrefixedMapView: function PrefixedMapView(t0, t1, t2) {
+      this._prefixed_map_view$_map = t0;
+      this._prefix = t1;
+      this.$ti = t2;
+    },
+    _PrefixedKeys: function _PrefixedKeys(t0) {
+      this._view = t0;
+    },
+    _PrefixedKeys_iterator_closure: function _PrefixedKeys_iterator_closure(t0) {
+      this.$this = t0;
+    },
+    PublicMemberMapView: function PublicMemberMapView(t0, t1) {
+      this._public_member_map_view$_inner = t0;
+      this.$ti = t1;
+    },
+    SourceMapBuffer: function SourceMapBuffer(t0, t1) {
+      var _ = this;
+      _._source_map_buffer$_buffer = t0;
+      _._entries = t1;
+      _._column = _._line = 0;
+      _._inSpan = false;
+    },
+    SourceMapBuffer_buildSourceMap_closure: function SourceMapBuffer_buildSourceMap_closure(t0, t1) {
+      this._box_0 = t0;
+      this.prefixLength = t1;
+    },
+    UnprefixedMapView: function UnprefixedMapView(t0, t1, t2) {
+      this._unprefixed_map_view$_map = t0;
+      this._unprefixed_map_view$_prefix = t1;
+      this.$ti = t2;
+    },
+    _UnprefixedKeys: function _UnprefixedKeys(t0) {
+      this._unprefixed_map_view$_view = t0;
+    },
+    _UnprefixedKeys_iterator_closure: function _UnprefixedKeys_iterator_closure(t0) {
+      this.$this = t0;
+    },
+    _UnprefixedKeys_iterator_closure0: function _UnprefixedKeys_iterator_closure0(t0) {
+      this.$this = t0;
+    },
+    toSentence(iter, conjunction) {
+      if (iter.get$length(iter) === 1)
+        return J.toString$0$(iter.get$first(iter));
+      return A.IterableExtension_get_exceptLast(iter).join$1(0, ", ") + (" " + conjunction + " " + A.S(iter.get$last(iter)));
+    },
+    indent(string, indentation) {
+      return new A.MappedListIterable(A._setArrayType(string.split("\n"), type$.JSArray_String), new A.indent_closure(indentation), type$.MappedListIterable_String_String).join$1(0, "\n");
+    },
+    pluralize($name, number, plural) {
+      if (number === 1)
+        return $name;
+      if (plural != null)
+        return plural;
+      return $name + "s";
+    },
+    trimAscii(string, excludeEscape) {
+      var t1,
+        start = A._firstNonWhitespace(string);
+      if (start == null)
+        t1 = "";
+      else {
+        t1 = A._lastNonWhitespace(string, true);
+        t1.toString;
+        t1 = B.JSString_methods.substring$2(string, start, t1 + 1);
+      }
+      return t1;
+    },
+    trimAsciiRight(string, excludeEscape) {
+      var end = A._lastNonWhitespace(string, excludeEscape);
+      return end == null ? "" : B.JSString_methods.substring$2(string, 0, end + 1);
+    },
+    _firstNonWhitespace(string) {
+      var t1, i, t2;
+      for (t1 = string.length, i = 0; i < t1; ++i) {
+        t2 = string.charCodeAt(i);
+        if (!(t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12))
+          return i;
+      }
+      return null;
+    },
+    _lastNonWhitespace(string, excludeEscape) {
+      var i, i0, codeUnit;
+      for (i = string.length - 1, i0 = i; i0 >= 0; --i0) {
+        codeUnit = string.charCodeAt(i0);
+        if (!(codeUnit === 32 || codeUnit === 9 || codeUnit === 10 || codeUnit === 13 || codeUnit === 12))
+          if (excludeEscape && i0 !== 0 && i0 !== i && codeUnit === 92)
+            return i0 + 1;
+          else
+            return i0;
+      }
+      return null;
+    },
+    isPublic(member) {
+      var start = member.charCodeAt(0);
+      return start !== 45 && start !== 95;
+    },
+    flattenVertically(iterable, $T) {
+      var result,
+        t1 = iterable.$ti._eval$1("@<ListIterable.E>")._bind$1($T._eval$1("QueueList<0>"))._eval$1("MappedListIterable<1,2>"),
+        queues = A.List_List$of(new A.MappedListIterable(iterable, new A.flattenVertically_closure($T), t1), true, t1._eval$1("ListIterable.E"));
+      if (queues.length === 1)
+        return B.JSArray_methods.get$first(queues);
+      result = A._setArrayType([], $T._eval$1("JSArray<0>"));
+      for (; queues.length !== 0;) {
+        if (!!queues.fixed$length)
+          A.throwExpression(A.UnsupportedError$("removeWhere"));
+        B.JSArray_methods._removeWhere$2(queues, new A.flattenVertically_closure0(result, $T), true);
+      }
+      return result;
+    },
+    codepointIndexToCodeUnitIndex(string, codepointIndex) {
+      var codeUnitIndex, i, codeUnitIndex0;
+      for (codeUnitIndex = 0, i = 0; i < codepointIndex; ++i) {
+        codeUnitIndex0 = codeUnitIndex + 1;
+        codeUnitIndex = string.charCodeAt(codeUnitIndex) >>> 10 === 54 ? codeUnitIndex0 + 1 : codeUnitIndex0;
+      }
+      return codeUnitIndex;
+    },
+    codeUnitIndexToCodepointIndex(string, codeUnitIndex) {
+      var codepointIndex, i;
+      for (codepointIndex = 0, i = 0; i < codeUnitIndex; i = (string.charCodeAt(i) >>> 10 === 54 ? i + 1 : i) + 1)
+        ++codepointIndex;
+      return codepointIndex;
+    },
+    frameForSpan(span, member, url) {
+      var t2, t3,
+        t1 = url == null ? span.get$sourceUrl(span) : url;
+      if (t1 == null)
+        t1 = $.$get$_noSourceUrl();
+      t2 = span.get$start(span);
+      t2 = t2.file.getLine$1(t2.offset);
+      t3 = span.get$start(span);
+      return new A.Frame(t1, t2 + 1, t3.file.getColumn$1(t3.offset) + 1, member);
+    },
+    declarationName(span) {
+      var text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(span.file._decodedChars, span._file$_start, span._end), 0, null);
+      return A.trimAsciiRight(B.JSString_methods.substring$2(text, 0, B.JSString_methods.indexOf$1(text, ":")), false);
+    },
+    unvendor($name) {
+      var i,
+        t1 = $name.length;
+      if (t1 < 2)
+        return $name;
+      if ($name.charCodeAt(0) !== 45)
+        return $name;
+      if ($name.charCodeAt(1) === 45)
+        return $name;
+      for (i = 2; i < t1; ++i)
+        if ($name.charCodeAt(i) === 45)
+          return B.JSString_methods.substring$1($name, i + 1);
+      return $name;
+    },
+    equalsIgnoreCase(string1, string2) {
+      var t1, i;
+      if (string1 === string2)
+        return true;
+      if (string1 == null)
+        return false;
+      t1 = string1.length;
+      if (t1 !== string2.length)
+        return false;
+      for (i = 0; i < t1; ++i)
+        if (!A.characterEqualsIgnoreCase(string1.charCodeAt(i), string2.charCodeAt(i)))
+          return false;
+      return true;
+    },
+    startsWithIgnoreCase(string, prefix) {
+      var i,
+        t1 = prefix.length;
+      if (string.length < t1)
+        return false;
+      for (i = 0; i < t1; ++i)
+        if (!A.characterEqualsIgnoreCase(string.charCodeAt(i), prefix.charCodeAt(i)))
+          return false;
+      return true;
+    },
+    mapInPlace(list, $function) {
+      var i;
+      for (i = 0; i < list.length; ++i)
+        list[i] = $function.call$1(list[i]);
+    },
+    longestCommonSubsequence(list1, list2, select, $T) {
+      var t1, _i, selections, i, i0, j, selection, j0,
+        _length = list1.get$length(0) + 1,
+        lengths = J.JSArray_JSArray$allocateFixed(_length, type$.List_int);
+      for (t1 = type$.int, _i = 0; _i < _length; ++_i)
+        lengths[_i] = A.List_List$filled(((list2._queue_list$_tail - list2._queue_list$_head & J.get$length$asx(list2._queue_list$_table) - 1) >>> 0) + 1, 0, false, t1);
+      _length = list1.get$length(0);
+      selections = J.JSArray_JSArray$allocateFixed(_length, $T._eval$1("List<0?>"));
+      for (t1 = $T._eval$1("0?"), _i = 0; _i < _length; ++_i)
+        selections[_i] = A.List_List$filled((list2._queue_list$_tail - list2._queue_list$_head & J.get$length$asx(list2._queue_list$_table) - 1) >>> 0, null, false, t1);
+      for (i = 0; i < (list1._queue_list$_tail - list1._queue_list$_head & J.get$length$asx(list1._queue_list$_table) - 1) >>> 0; i = i0)
+        for (i0 = i + 1, j = 0; j < (list2._queue_list$_tail - list2._queue_list$_head & J.get$length$asx(list2._queue_list$_table) - 1) >>> 0; j = j0) {
+          selection = select.call$2(list1.$index(0, i), list2.$index(0, j));
+          selections[i][j] = selection;
+          t1 = lengths[i0];
+          j0 = j + 1;
+          t1[j0] = selection == null ? Math.max(t1[j], lengths[i][j0]) : lengths[i][j] + 1;
+        }
+      return new A.longestCommonSubsequence_backtrack(selections, lengths, $T).call$2(list1.get$length(0) - 1, list2.get$length(0) - 1);
+    },
+    removeFirstWhere(list, test, orElse) {
+      var i;
+      for (i = 0; i < list.length; ++i) {
+        if (!test.call$1(list[i]))
+          continue;
+        B.JSArray_methods.removeAt$1(list, i);
+        return;
+      }
+      orElse.call$0();
+    },
+    mapAddAll2(destination, source, K1, K2, $V) {
+      source.forEach$1(0, new A.mapAddAll2_closure(destination, K1, K2, $V));
+    },
+    setAll(map, keys, value) {
+      var t1;
+      for (t1 = J.get$iterator$ax(keys); t1.moveNext$0();)
+        map.$indexSet(0, t1.get$current(t1), value);
+    },
+    rotateSlice(list, start, end) {
+      var i, next,
+        element = list.$index(0, end - 1);
+      for (i = start; i < end; ++i, element = next) {
+        next = list.$index(0, i);
+        list.$indexSet(0, i, element);
+      }
+    },
+    mapAsync(iterable, callback, $E, $F) {
+      return A.mapAsync$body(iterable, callback, $E, $F, $F._eval$1("Iterable<0>"));
+    },
+    mapAsync$body(iterable, callback, $E, $F, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, t2, _i, t1, $async$temp1;
+      var $async$mapAsync = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = A._setArrayType([], $F._eval$1("JSArray<0>"));
+              t2 = iterable.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$temp1 = t1;
+              $async$goto = 6;
+              return A._asyncAwait(callback.call$1(iterable[_i]), $async$mapAsync);
+            case 6:
+              // returning from await.
+              $async$temp1.push($async$result);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$mapAsync, $async$completer);
+    },
+    putIfAbsentAsync(map, key, ifAbsent, $K, $V) {
+      return A.putIfAbsentAsync$body(map, key, ifAbsent, $K, $V, $V);
+    },
+    putIfAbsentAsync$body(map, key, ifAbsent, $K, $V, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, t1, value;
+      var $async$putIfAbsentAsync = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (map.containsKey$1(key)) {
+                t1 = map.$index(0, key);
+                $async$returnValue = t1 == null ? $V._as(t1) : t1;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 3;
+              return A._asyncAwait(ifAbsent.call$0(), $async$putIfAbsentAsync);
+            case 3:
+              // returning from await.
+              value = $async$result;
+              map.$indexSet(0, key, value);
+              $async$returnValue = value;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$putIfAbsentAsync, $async$completer);
+    },
+    copyMapOfMap(map, K1, K2, $V) {
+      var t3, key, child,
+        t1 = K2._eval$1("@<0>")._bind$1($V)._eval$1("Map<1,2>"),
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(K1, t1);
+      for (t1 = A.MapExtensions_get_pairs(map, K1, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        key = t3._0;
+        child = t3._1;
+        t3 = A.LinkedHashMap_LinkedHashMap(null, null, null, K2, $V);
+        t3.addAll$1(0, child);
+        t2.$indexSet(0, key, t3);
+      }
+      return t2;
+    },
+    copyMapOfList(map, $K, $E) {
+      var t3,
+        t1 = $E._eval$1("List<0>"),
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty($K, t1);
+      for (t1 = A.MapExtensions_get_pairs(map, $K, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        t2.$indexSet(0, t3._0, J.toList$0$ax(t3._1));
+      }
+      return t2;
+    },
+    consumeEscapedCharacter(scanner) {
+      var _1_0, value, i, next, t1;
+      scanner.expectChar$1(92);
+      _1_0 = scanner.peekChar$0();
+      if (_1_0 == null)
+        return 65533;
+      if (_1_0 === 10 || _1_0 === 13 || _1_0 === 12)
+        scanner.error$1(0, "Expected escape sequence.");
+      if (A.CharacterExtension_get_isHex(_1_0)) {
+        for (value = 0, i = 0; i < 6; ++i) {
+          next = scanner.peekChar$0();
+          if (next != null) {
+            if (!(next >= 48 && next <= 57))
+              if (!(next >= 97 && next <= 102))
+                t1 = next >= 65 && next <= 70;
+              else
+                t1 = true;
+            else
+              t1 = true;
+            t1 = !t1;
+          } else
+            t1 = true;
+          if (t1)
+            break;
+          value = (value << 4 >>> 0) + A.asHex(scanner.readChar$0());
+        }
+        t1 = scanner.peekChar$0();
+        if (t1 === 32 || t1 === 9 || t1 === 10 || t1 === 13 || t1 === 12)
+          scanner.readChar$0();
+        $label0$1: {
+          if (0 !== value)
+            t1 = value >= 55296 && value <= 57343 || value >= 1114111;
+          else
+            t1 = true;
+          if (t1) {
+            t1 = 65533;
+            break $label0$1;
+          }
+          t1 = value;
+          break $label0$1;
+        }
+        return t1;
+      }
+      return scanner.readChar$0();
+    },
+    throwWithTrace(error, originalError, trace) {
+      var t1 = A.getTrace(originalError);
+      A.attachTrace(error, t1 == null ? trace : t1);
+      throw A.wrapException(error);
+    },
+    attachTrace(error, trace) {
+      var t1;
+      if (trace.toString$0(0).length === 0)
+        return;
+      t1 = $.$get$_traces();
+      A.Expando__checkType(error);
+      if (t1._jsWeakMap.get(error) == null)
+        t1.$indexSet(0, error, trace);
+    },
+    getTrace(error) {
+      var t1;
+      if (typeof error == "string" || typeof error == "number" || A._isBool(error))
+        t1 = null;
+      else {
+        t1 = $.$get$_traces();
+        A.Expando__checkType(error);
+        t1 = t1._jsWeakMap.get(error);
+      }
+      return t1;
+    },
+    indent_closure: function indent_closure(t0) {
+      this.indentation = t0;
+    },
+    flattenVertically_closure: function flattenVertically_closure(t0) {
+      this.T = t0;
+    },
+    flattenVertically_closure0: function flattenVertically_closure0(t0, t1) {
+      this.result = t0;
+      this.T = t1;
+    },
+    longestCommonSubsequence_backtrack: function longestCommonSubsequence_backtrack(t0, t1, t2) {
+      this.selections = t0;
+      this.lengths = t1;
+      this.T = t2;
+    },
+    mapAddAll2_closure: function mapAddAll2_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.destination = t0;
+      _.K1 = t1;
+      _.K2 = t2;
+      _.V = t3;
+    },
+    SassApiValue_assertSelector(_this, allowParent, $name) {
+      var error, stackTrace, t1, exception,
+        string = _this._selectorString$1($name);
+      try {
+        t1 = A.SelectorList_SelectorList$parse(string, allowParent, null, null, false);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassFormatException._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = B.JSString_methods.replaceFirst$2(J.toString$0$(error), "Error: ", "");
+          A.throwWithTrace(new A.SassScriptException($name == null ? t1 : "$" + $name + ": " + t1), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    SassApiValue_assertCompoundSelector(_this, $name) {
+      var error, stackTrace, t1, exception,
+        allowParent = false,
+        string = _this._selectorString$1($name);
+      try {
+        t1 = A.SelectorParser$(string, allowParent, null, null, false, null).parseCompoundSelector$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassFormatException._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = B.JSString_methods.replaceFirst$2(J.toString$0$(error), "Error: ", "");
+          A.throwWithTrace(new A.SassScriptException("$" + $name + ": " + t1), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    Value: function Value() {
+    },
+    SassArgumentList$(contents, keywords, separator) {
+      var t1 = type$.Value;
+      t1 = new A.SassArgumentList(A.ConstantMap_ConstantMap$from(keywords, type$.String, t1), A.List_List$unmodifiable(contents, t1), separator, false);
+      t1.SassList$3$brackets(contents, separator, false);
+      return t1;
+    },
+    SassArgumentList: function SassArgumentList(t0, t1, t2, t3) {
+      var _ = this;
+      _._keywords = t0;
+      _._wereKeywordsAccessed = false;
+      _._list$_contents = t1;
+      _._separator = t2;
+      _._hasBrackets = t3;
+    },
+    SassBoolean: function SassBoolean(t0) {
+      this.value = t0;
+    },
+    SassCalculation_calc(argument) {
+      var t1,
+        _0_0 = A.SassCalculation__simplify(argument);
+      $label0$0: {
+        if (_0_0 instanceof A.SassNumber) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassCalculation) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        t1 = new A.SassCalculation("calc", A.List_List$unmodifiable([_0_0], type$.Object));
+        break $label0$0;
+      }
+      return t1;
+    },
+    SassCalculation_min($arguments) {
+      var minimum, _i, arg, t2,
+        args = A.List_List$unmodifiable(new A.MappedListIterable($arguments, A.calculation_SassCalculation__simplify$closure(), A._arrayInstanceType($arguments)._eval$1("MappedListIterable<1,@>")), type$.Object),
+        t1 = args.length;
+      if (t1 === 0)
+        throw A.wrapException(A.ArgumentError$("min() must have at least one argument.", null));
+      for (minimum = null, _i = 0; _i < t1; ++_i) {
+        arg = args[_i];
+        if (arg instanceof A.SassNumber)
+          t2 = minimum != null && !minimum.isComparableTo$1(arg);
+        else
+          t2 = true;
+        if (t2) {
+          minimum = null;
+          break;
+        } else if (minimum == null || minimum.greaterThan$1(arg).value)
+          minimum = arg;
+      }
+      if (minimum != null)
+        return minimum;
+      A.SassCalculation__verifyCompatibleNumbers(args);
+      return new A.SassCalculation("min", args);
+    },
+    SassCalculation_max($arguments) {
+      var maximum, _i, arg, t2,
+        args = A.List_List$unmodifiable(new A.MappedListIterable($arguments, A.calculation_SassCalculation__simplify$closure(), A._arrayInstanceType($arguments)._eval$1("MappedListIterable<1,@>")), type$.Object),
+        t1 = args.length;
+      if (t1 === 0)
+        throw A.wrapException(A.ArgumentError$("max() must have at least one argument.", null));
+      for (maximum = null, _i = 0; _i < t1; ++_i) {
+        arg = args[_i];
+        if (arg instanceof A.SassNumber)
+          t2 = maximum != null && !maximum.isComparableTo$1(arg);
+        else
+          t2 = true;
+        if (t2) {
+          maximum = null;
+          break;
+        } else if (maximum == null || maximum.lessThan$1(arg).value)
+          maximum = arg;
+      }
+      if (maximum != null)
+        return maximum;
+      A.SassCalculation__verifyCompatibleNumbers(args);
+      return new A.SassCalculation("max", args);
+    },
+    SassCalculation_hypot($arguments) {
+      var first, subtotal, i, number, value, t2, t3,
+        args = A.List_List$unmodifiable(new A.MappedListIterable($arguments, A.calculation_SassCalculation__simplify$closure(), A._arrayInstanceType($arguments)._eval$1("MappedListIterable<1,@>")), type$.Object),
+        t1 = args.length;
+      if (t1 === 0)
+        throw A.wrapException(A.ArgumentError$("hypot() must have at least one argument.", null));
+      A.SassCalculation__verifyCompatibleNumbers(args);
+      first = B.JSArray_methods.get$first(args);
+      if (!(first instanceof A.SassNumber) || first.hasUnit$1("%"))
+        return new A.SassCalculation("hypot", args);
+      for (subtotal = 0, i = 0; i < t1;) {
+        number = args[i];
+        if (!(number instanceof A.SassNumber) || !number.hasCompatibleUnits$1(first))
+          return new A.SassCalculation("hypot", args);
+        ++i;
+        value = number.convertValueToMatch$3(first, "numbers[" + i + "]", "numbers[1]");
+        subtotal += value * value;
+      }
+      t1 = Math.sqrt(subtotal);
+      t2 = J.getInterceptor$x(first);
+      t3 = t2.get$numeratorUnits(first);
+      return A.SassNumber_SassNumber$withUnits(t1, t2.get$denominatorUnits(first), t3);
+    },
+    SassCalculation_abs(argument) {
+      argument = A.SassCalculation__simplify(argument);
+      if (!(argument instanceof A.SassNumber))
+        return new A.SassCalculation("abs", A._setArrayType([argument], type$.JSArray_Object));
+      if (argument.hasUnit$1("%"))
+        A.warnForDeprecation(string$.Passinp + argument.toString$0(0) + ")\nTo emit a CSS abs() now: abs(#{" + argument.toString$0(0) + string$.x7d__Mor, B.Deprecation_GFc);
+      return A.SassNumber_SassNumber(Math.abs(argument._number$_value), null).coerceToMatch$1(argument);
+    },
+    SassCalculation_exp(argument) {
+      argument = A.SassCalculation__simplify(argument);
+      if (!(argument instanceof A.SassNumber))
+        return new A.SassCalculation("exp", A._setArrayType([argument], type$.JSArray_Object));
+      argument.assertNoUnits$0();
+      return A.pow0(A.SassNumber_SassNumber(2.718281828459045, null), argument);
+    },
+    SassCalculation_sign(argument) {
+      var t1, _0_2, t2, arg;
+      argument = A.SassCalculation__simplify(argument);
+      $label0$0: {
+        t1 = argument instanceof A.SassNumber;
+        if (t1) {
+          _0_2 = argument._number$_value;
+          if (!isNaN(_0_2))
+            t2 = 0 === _0_2;
+          else
+            t2 = true;
+        } else
+          t2 = false;
+        if (t2) {
+          t1 = argument;
+          break $label0$0;
+        }
+        if (t1) {
+          t1 = !argument.hasUnit$1("%");
+          arg = argument;
+        } else {
+          arg = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = A.SassNumber_SassNumber(J.get$sign$in(arg._number$_value), null).coerceToMatch$1(argument);
+          break $label0$0;
+        }
+        t1 = new A.SassCalculation("sign", A._setArrayType([argument], type$.JSArray_Object));
+        break $label0$0;
+      }
+      return t1;
+    },
+    SassCalculation_clamp(min, value, max) {
+      var t1, args;
+      if (value == null && max != null)
+        throw A.wrapException(A.ArgumentError$("If value is null, max must also be null.", null));
+      min = A.SassCalculation__simplify(min);
+      value = A.NullableExtension_andThen(value, A.calculation_SassCalculation__simplify$closure());
+      max = A.NullableExtension_andThen(max, A.calculation_SassCalculation__simplify$closure());
+      if (min instanceof A.SassNumber && value instanceof A.SassNumber && max instanceof A.SassNumber && min.hasCompatibleUnits$1(value) && min.hasCompatibleUnits$1(max)) {
+        if (value.lessThanOrEquals$1(min).value)
+          return min;
+        if (value.greaterThanOrEquals$1(max).value)
+          return max;
+        return value;
+      }
+      t1 = [min];
+      if (value != null)
+        t1.push(value);
+      if (max != null)
+        t1.push(max);
+      args = A.List_List$unmodifiable(t1, type$.Object);
+      A.SassCalculation__verifyCompatibleNumbers(args);
+      A.SassCalculation__verifyLength(args, 3);
+      return new A.SassCalculation("clamp", args);
+    },
+    SassCalculation_pow(base, exponent) {
+      var t1 = A._setArrayType([base], type$.JSArray_Object);
+      if (exponent != null)
+        t1.push(exponent);
+      A.SassCalculation__verifyLength(t1, 2);
+      base = A.SassCalculation__simplify(base);
+      exponent = A.NullableExtension_andThen(exponent, A.calculation_SassCalculation__simplify$closure());
+      if (!(base instanceof A.SassNumber) || !(exponent instanceof A.SassNumber))
+        return new A.SassCalculation("pow", t1);
+      base.assertNoUnits$0();
+      exponent.assertNoUnits$0();
+      return A.pow0(base, exponent);
+    },
+    SassCalculation_log(number, base) {
+      var t1, t2;
+      number = A.SassCalculation__simplify(number);
+      base = A.NullableExtension_andThen(base, A.calculation_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([number], type$.JSArray_Object);
+      t2 = base != null;
+      if (t2)
+        t1.push(base);
+      if (number instanceof A.SassNumber)
+        t2 = t2 && !(base instanceof A.SassNumber);
+      else
+        t2 = true;
+      if (t2)
+        return new A.SassCalculation("log", t1);
+      number.assertNoUnits$0();
+      if (base instanceof A.SassNumber) {
+        base.assertNoUnits$0();
+        return A.log(number, base);
+      }
+      return A.log(number, null);
+    },
+    SassCalculation_atan2(y, x) {
+      var t1;
+      y = A.SassCalculation__simplify(y);
+      x = A.NullableExtension_andThen(x, A.calculation_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([y], type$.JSArray_Object);
+      if (x != null)
+        t1.push(x);
+      A.SassCalculation__verifyLength(t1, 2);
+      A.SassCalculation__verifyCompatibleNumbers(t1);
+      if (!(y instanceof A.SassNumber) || !(x instanceof A.SassNumber) || y.hasUnit$1("%") || x.hasUnit$1("%") || !y.hasCompatibleUnits$1(x))
+        return new A.SassCalculation("atan2", t1);
+      return A.SassNumber_SassNumber$withUnits(Math.atan2(y._number$_value, x.convertValueToMatch$3(y, "x", "y")) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    SassCalculation_rem(dividend, modulus) {
+      var t1, result;
+      dividend = A.SassCalculation__simplify(dividend);
+      modulus = A.NullableExtension_andThen(modulus, A.calculation_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([dividend], type$.JSArray_Object);
+      if (modulus != null)
+        t1.push(modulus);
+      A.SassCalculation__verifyLength(t1, 2);
+      A.SassCalculation__verifyCompatibleNumbers(t1);
+      if (!(dividend instanceof A.SassNumber) || !(modulus instanceof A.SassNumber) || !dividend.hasCompatibleUnits$1(modulus))
+        return new A.SassCalculation("rem", t1);
+      result = dividend.modulo$1(modulus);
+      t1 = modulus._number$_value;
+      if (A.DoubleWithSignedZero_get_signIncludingZero(t1) !== A.DoubleWithSignedZero_get_signIncludingZero(dividend._number$_value)) {
+        if (t1 == 1 / 0 || t1 == -1 / 0)
+          return dividend;
+        if (result._number$_value === 0)
+          return result.unaryMinus$0();
+        return result.minus$1(modulus);
+      }
+      return result;
+    },
+    SassCalculation_mod(dividend, modulus) {
+      var t1;
+      dividend = A.SassCalculation__simplify(dividend);
+      modulus = A.NullableExtension_andThen(modulus, A.calculation_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([dividend], type$.JSArray_Object);
+      if (modulus != null)
+        t1.push(modulus);
+      A.SassCalculation__verifyLength(t1, 2);
+      A.SassCalculation__verifyCompatibleNumbers(t1);
+      if (!(dividend instanceof A.SassNumber) || !(modulus instanceof A.SassNumber) || !dividend.hasCompatibleUnits$1(modulus))
+        return new A.SassCalculation("mod", t1);
+      return dividend.modulo$1(modulus);
+    },
+    SassCalculation_round(strategyOrNumber, numberOrStep, step) {
+      var _0_4, _0_5_isSet, _0_20, _0_6, t1, _0_50, _0_6_isSet, number, t2, _0_2_isSet, _0_10_isSet, _0_8, _0_12_isSet, _0_12, _0_14_isSet, _0_14, _0_16_isSet, _0_16, t3, strategy, _0_8_isSet, t4, rest, _null = null, _s5_ = "round",
+        _0_1 = A.SassCalculation__simplify(strategyOrNumber),
+        _0_2 = A.NullableExtension_andThen(numberOrStep, A.calculation_SassCalculation__simplify$closure()),
+        _0_5 = A.NullableExtension_andThen(step, A.calculation_SassCalculation__simplify$closure()),
+        _0_10 = _0_1,
+        _0_4_isSet = _0_1 instanceof A.SassNumber;
+      if (_0_4_isSet) {
+        type$.SassNumber._as(_0_10);
+        _0_4 = _0_2 == null;
+        _0_5_isSet = _0_4;
+        _0_20 = _0_2;
+        if (_0_5_isSet) {
+          _0_6 = _0_5 == null;
+          t1 = _0_6;
+          _0_50 = _0_5;
+        } else {
+          _0_50 = _null;
+          _0_6 = _0_50;
+          t1 = false;
+        }
+        _0_6_isSet = _0_5_isSet;
+        number = _0_10;
+        _0_1 = number;
+      } else {
+        number = _null;
+        _0_50 = number;
+        _0_6 = _0_50;
+        _0_20 = _0_6;
+        _0_4 = _0_20;
+        _0_1 = _0_10;
+        _0_6_isSet = false;
+        _0_5_isSet = false;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = B.JSNumber_methods.round$0(number._number$_value);
+        t2 = number.get$numeratorUnits(number);
+        return A.SassNumber_SassNumber$withUnits(t1, number.get$denominatorUnits(number), t2);
+      }
+      if (_0_1 instanceof A.SassNumber) {
+        if (_0_4_isSet) {
+          t1 = _0_20;
+          _0_2_isSet = _0_4_isSet;
+        } else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        if (t1 instanceof A.SassNumber) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          type$.SassNumber._as(t1);
+          if (_0_6_isSet)
+            t2 = _0_6;
+          else {
+            if (_0_5_isSet)
+              t2 = _0_50;
+            else {
+              t2 = _0_5;
+              _0_50 = t2;
+              _0_5_isSet = true;
+            }
+            _0_6 = t2 == null;
+            t2 = _0_6;
+            _0_6_isSet = true;
+          }
+          t2 = t2 && !_0_1.hasCompatibleUnits$1(t1);
+          step = t1;
+          t1 = t2;
+        } else {
+          step = _null;
+          t1 = false;
+        }
+        number = _0_1;
+      } else {
+        step = _null;
+        number = step;
+        _0_2_isSet = _0_4_isSet;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = type$.JSArray_Object;
+        A.SassCalculation__verifyCompatibleNumbers(A._setArrayType([number, step], t1));
+        return new A.SassCalculation(_s5_, A._setArrayType([number, step], t1));
+      }
+      if (_0_1 instanceof A.SassNumber) {
+        if (_0_2_isSet)
+          t1 = _0_20;
+        else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        if (t1 instanceof A.SassNumber) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          type$.SassNumber._as(t1);
+          if (_0_6_isSet)
+            t2 = _0_6;
+          else {
+            if (_0_5_isSet)
+              t2 = _0_50;
+            else {
+              t2 = _0_5;
+              _0_50 = t2;
+              _0_5_isSet = true;
+            }
+            _0_6 = t2 == null;
+            t2 = _0_6;
+            _0_6_isSet = true;
+          }
+          step = t1;
+          t1 = t2;
+        } else {
+          step = _null;
+          t1 = false;
+        }
+        number = _0_1;
+      } else {
+        step = _null;
+        number = step;
+        t1 = false;
+      }
+      if (t1) {
+        A.SassCalculation__verifyCompatibleNumbers(A._setArrayType([number, step], type$.JSArray_Object));
+        return A.SassCalculation__roundWithStep("nearest", number, step);
+      }
+      _0_10_isSet = _0_1 instanceof A.SassString;
+      if (_0_10_isSet) {
+        _0_8 = _0_1._string$_text;
+        t1 = _0_8;
+        _0_10 = "nearest" === t1;
+        t1 = _0_10;
+        _0_12_isSet = !t1;
+        if (_0_12_isSet) {
+          _0_12 = "up" === _0_8;
+          t1 = _0_12;
+          _0_14_isSet = !t1;
+          if (_0_14_isSet) {
+            _0_14 = "down" === _0_8;
+            t1 = _0_14;
+            _0_16_isSet = !t1;
+            if (_0_16_isSet) {
+              _0_16 = "to-zero" === _0_8;
+              t1 = _0_16;
+            } else {
+              _0_16 = _null;
+              t1 = true;
+            }
+          } else {
+            _0_16 = _null;
+            _0_14 = _0_16;
+            _0_16_isSet = false;
+            t1 = true;
+          }
+        } else {
+          _0_16 = _null;
+          _0_14 = _0_16;
+          _0_12 = _0_14;
+          _0_14_isSet = false;
+          _0_16_isSet = false;
+          t1 = true;
+        }
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 instanceof A.SassNumber) {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            t2 = type$.SassNumber;
+            t2._as(t1);
+            if (_0_5_isSet)
+              t3 = _0_50;
+            else {
+              t3 = _0_5;
+              _0_50 = t3;
+              _0_5_isSet = true;
+            }
+            if (t3 instanceof A.SassNumber) {
+              if (_0_5_isSet)
+                t3 = _0_50;
+              else {
+                t3 = _0_5;
+                _0_50 = t3;
+                _0_5_isSet = true;
+              }
+              t2._as(t3);
+              t2 = !t1.hasCompatibleUnits$1(t3);
+              step = t3;
+            } else {
+              step = _null;
+              t2 = false;
+            }
+            number = t1;
+            t1 = t2;
+          } else {
+            step = _null;
+            number = step;
+            t1 = false;
+          }
+          strategy = _0_1;
+        } else {
+          step = _null;
+          number = step;
+          strategy = number;
+          t1 = false;
+        }
+      } else {
+        step = _null;
+        number = step;
+        strategy = number;
+        _0_16 = strategy;
+        _0_14 = _0_16;
+        _0_12 = _0_14;
+        _0_8 = _0_12;
+        _0_10 = _0_8;
+        _0_12_isSet = false;
+        _0_14_isSet = false;
+        _0_16_isSet = false;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = type$.JSArray_Object;
+        A.SassCalculation__verifyCompatibleNumbers(A._setArrayType([number, step], t1));
+        return new A.SassCalculation(_s5_, A._setArrayType([strategy, number, step], t1));
+      }
+      if (_0_1 instanceof A.SassString) {
+        if (_0_10_isSet) {
+          t1 = _0_10;
+          _0_8_isSet = _0_10_isSet;
+        } else {
+          _0_8 = _0_1._string$_text;
+          t1 = _0_8;
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+          _0_8_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 instanceof A.SassNumber) {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            t2 = type$.SassNumber;
+            t2._as(t1);
+            if (_0_5_isSet)
+              t3 = _0_50;
+            else {
+              t3 = _0_5;
+              _0_50 = t3;
+              _0_5_isSet = true;
+            }
+            t3 = t3 instanceof A.SassNumber;
+            if (t3) {
+              if (_0_5_isSet)
+                t4 = _0_50;
+              else {
+                t4 = _0_5;
+                _0_50 = t4;
+                _0_5_isSet = true;
+              }
+              t2._as(t4);
+              step = t4;
+            } else
+              step = _null;
+            t2 = t3;
+            number = t1;
+            t1 = t2;
+          } else {
+            step = _null;
+            number = step;
+            t1 = false;
+          }
+          strategy = _0_1;
+        } else {
+          step = _null;
+          number = step;
+          strategy = number;
+          t1 = false;
+        }
+      } else {
+        step = _null;
+        number = step;
+        strategy = number;
+        _0_8_isSet = _0_10_isSet;
+        t1 = false;
+      }
+      if (t1) {
+        A.SassCalculation__verifyCompatibleNumbers(A._setArrayType([number, step], type$.JSArray_Object));
+        return A.SassCalculation__roundWithStep(strategy._string$_text, number, step);
+      }
+      if (_0_1 instanceof A.SassString) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 instanceof A.SassString) {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            type$.SassString._as(t1);
+            if (_0_6_isSet)
+              t2 = _0_6;
+            else {
+              if (_0_5_isSet)
+                t2 = _0_50;
+              else {
+                t2 = _0_5;
+                _0_50 = t2;
+                _0_5_isSet = true;
+              }
+              _0_6 = t2 == null;
+              t2 = _0_6;
+              _0_6_isSet = true;
+            }
+            rest = t1;
+            t1 = t2;
+          } else {
+            rest = _null;
+            t1 = false;
+          }
+          strategy = _0_1;
+        } else {
+          rest = _null;
+          strategy = rest;
+          t1 = false;
+        }
+      } else {
+        rest = _null;
+        strategy = rest;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation(_s5_, A._setArrayType([strategy, rest], type$.JSArray_Object));
+      if (_0_1 instanceof A.SassString) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 != null)
+            if (_0_6_isSet)
+              t1 = _0_6;
+            else {
+              if (_0_5_isSet)
+                t1 = _0_50;
+              else {
+                t1 = _0_5;
+                _0_50 = t1;
+                _0_5_isSet = true;
+              }
+              _0_6 = t1 == null;
+              t1 = _0_6;
+              _0_6_isSet = true;
+            }
+          else
+            t1 = false;
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$(string$.If_str, _null));
+      if (_0_1 instanceof A.SassString) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_4_isSet)
+            t1 = _0_4;
+          else {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            _0_4 = t1 == null;
+            t1 = _0_4;
+            _0_4_isSet = true;
+          }
+          if (t1)
+            if (_0_6_isSet)
+              t1 = _0_6;
+            else {
+              if (_0_5_isSet)
+                t1 = _0_50;
+              else {
+                t1 = _0_5;
+                _0_50 = t1;
+                _0_5_isSet = true;
+              }
+              _0_6 = t1 == null;
+              t1 = _0_6;
+              _0_6_isSet = true;
+            }
+          else
+            t1 = false;
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$(string$.Number, _null));
+      if (_0_1 instanceof A.SassString) {
+        if (_0_4_isSet)
+          t1 = _0_4;
+        else {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          _0_4 = t1 == null;
+          t1 = _0_4;
+          _0_4_isSet = true;
+        }
+        if (t1)
+          if (_0_6_isSet)
+            t1 = _0_6;
+          else {
+            if (_0_5_isSet)
+              t1 = _0_50;
+            else {
+              t1 = _0_5;
+              _0_50 = t1;
+              _0_5_isSet = true;
+            }
+            _0_6 = t1 == null;
+            t1 = _0_6;
+            _0_6_isSet = true;
+          }
+        else
+          t1 = false;
+        rest = _0_1;
+      } else {
+        rest = _null;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation(_s5_, A._setArrayType([rest], type$.JSArray_Object));
+      if (_0_4_isSet)
+        t1 = _0_4;
+      else {
+        if (_0_2_isSet)
+          t1 = _0_20;
+        else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        _0_4 = t1 == null;
+        t1 = _0_4;
+      }
+      if (t1)
+        if (_0_6_isSet)
+          t1 = _0_6;
+        else {
+          if (_0_5_isSet)
+            t1 = _0_50;
+          else {
+            t1 = _0_5;
+            _0_50 = t1;
+            _0_5_isSet = true;
+          }
+          _0_6 = t1 == null;
+          t1 = _0_6;
+          _0_6_isSet = true;
+        }
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$("Single argument " + A.S(_0_1) + " expected to be simplifiable.", _null));
+      if (_0_2_isSet)
+        t1 = _0_20;
+      else {
+        t1 = _0_2;
+        _0_20 = t1;
+        _0_2_isSet = true;
+      }
+      if (t1 != null) {
+        if (_0_2_isSet)
+          step = _0_20;
+        else {
+          step = _0_2;
+          _0_20 = step;
+          _0_2_isSet = true;
+        }
+        if (step == null)
+          step = type$.Object._as(step);
+        if (_0_6_isSet)
+          t1 = _0_6;
+        else {
+          if (_0_5_isSet)
+            t1 = _0_50;
+          else {
+            t1 = _0_5;
+            _0_50 = t1;
+            _0_5_isSet = true;
+          }
+          _0_6 = t1 == null;
+          t1 = _0_6;
+        }
+      } else {
+        step = _null;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation(_s5_, A._setArrayType([_0_1, step], type$.JSArray_Object));
+      if (_0_1 instanceof A.SassString) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string$_text;
+                  t1 = _0_8;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+      } else
+        t1 = false;
+      if (!t1)
+        if (_0_1 instanceof A.SassString)
+          t1 = _0_1.get$isVar();
+        else
+          t1 = false;
+      else
+        t1 = true;
+      if (t1) {
+        type$.SassString._as(_0_1);
+        if (_0_2_isSet)
+          t1 = _0_20;
+        else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        if (t1 != null) {
+          if (_0_2_isSet)
+            number = _0_20;
+          else {
+            number = _0_2;
+            _0_20 = number;
+            _0_2_isSet = true;
+          }
+          if (number == null)
+            number = type$.Object._as(number);
+          if (_0_5_isSet)
+            t1 = _0_50;
+          else {
+            t1 = _0_5;
+            _0_50 = t1;
+            _0_5_isSet = true;
+          }
+          t1 = t1 != null;
+          if (t1) {
+            if (_0_5_isSet)
+              step = _0_50;
+            else {
+              step = _0_5;
+              _0_50 = step;
+              _0_5_isSet = true;
+            }
+            if (step == null)
+              step = type$.Object._as(step);
+          } else
+            step = _null;
+        } else {
+          step = _null;
+          number = step;
+          t1 = false;
+        }
+        strategy = _0_1;
+      } else {
+        step = _null;
+        number = step;
+        strategy = number;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation(_s5_, A._setArrayType([strategy, number, step], type$.JSArray_Object));
+      if ((_0_2_isSet ? _0_20 : _0_2) != null)
+        t1 = (_0_5_isSet ? _0_50 : _0_5) != null;
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$(A.S(strategyOrNumber) + string$.x20must_b, _null));
+      t1 = A.SassScriptException$("Invalid parameters.", _null);
+      throw A.wrapException(t1);
+    },
+    SassCalculation_operateInternal(operator, left, right, inLegacySassFunction, simplify) {
+      var t1;
+      if (!simplify)
+        return new A.CalculationOperation(operator, left, right);
+      left = A.SassCalculation__simplify(left);
+      right = A.SassCalculation__simplify(right);
+      if (B.CalculationOperator_g2q === operator || B.CalculationOperator_CxF === operator) {
+        if (left instanceof A.SassNumber)
+          if (right instanceof A.SassNumber)
+            t1 = inLegacySassFunction ? left.isComparableTo$1(right) : left.hasCompatibleUnits$1(right);
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1)
+          return operator === B.CalculationOperator_g2q ? left.plus$1(right) : left.minus$1(right);
+        A.SassCalculation__verifyCompatibleNumbers(A._setArrayType([left, right], type$.JSArray_Object));
+        if (right instanceof A.SassNumber) {
+          t1 = right._number$_value;
+          t1 = t1 < 0 && !A.fuzzyEquals(t1, 0);
+        } else
+          t1 = false;
+        if (t1) {
+          right = right.times$1(A.SassNumber_SassNumber(-1, null));
+          operator = operator === B.CalculationOperator_g2q ? B.CalculationOperator_CxF : B.CalculationOperator_g2q;
+        }
+        return new A.CalculationOperation(operator, left, right);
+      } else if (left instanceof A.SassNumber && right instanceof A.SassNumber)
+        return operator === B.CalculationOperator_171 ? left.times$1(right) : left.dividedBy$1(right);
+      else
+        return new A.CalculationOperation(operator, left, right);
+    },
+    SassCalculation__roundWithStep(strategy, number, step) {
+      var _0_2, t1, _0_6, _0_8_isSet, _0_8, _0_9_isSet, _0_9, _0_11, _0_13, stepWithNumberUnit, t2, _null = null;
+      if (!A.LinkedHashSet_LinkedHashSet$_literal(["nearest", "up", "down", "to-zero"], type$.String).contains$1(0, strategy))
+        throw A.wrapException(A.ArgumentError$(strategy + string$.x20must_b, _null));
+      _0_2 = number._number$_value;
+      if (_0_2 == 1 / 0 || _0_2 == -1 / 0) {
+        t1 = step._number$_value;
+        t1 = t1 == 1 / 0 || t1 == -1 / 0;
+      } else
+        t1 = false;
+      if (!t1) {
+        t1 = step._number$_value;
+        t1 = t1 === 0 || isNaN(_0_2) || isNaN(t1);
+      } else
+        t1 = true;
+      if (t1) {
+        t1 = number.get$numeratorUnits(number);
+        return A.SassNumber_SassNumber$withUnits(0 / 0, number.get$denominatorUnits(number), t1);
+      }
+      if (_0_2 == 1 / 0 || _0_2 == -1 / 0)
+        return number;
+      t1 = step._number$_value;
+      if (t1 == 1 / 0 || t1 == -1 / 0) {
+        $label0$0: {
+          if (0 === _0_2) {
+            t1 = number;
+            break $label0$0;
+          }
+          _0_6 = "nearest" === strategy;
+          t1 = _0_6;
+          _0_8_isSet = !t1;
+          if (_0_8_isSet) {
+            _0_8 = "to-zero" === strategy;
+            _0_9_isSet = _0_8;
+          } else {
+            _0_8 = _null;
+            _0_9_isSet = true;
+          }
+          if (_0_9_isSet) {
+            _0_9 = _0_2 > 0;
+            t1 = _0_9;
+          } else {
+            _0_9 = _null;
+            t1 = false;
+          }
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits(0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          if (!_0_6)
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = "to-zero" === strategy;
+              t1 = _0_8;
+            }
+          else
+            t1 = true;
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits(-0.0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          _0_11 = "up" === strategy;
+          t1 = _0_11;
+          if (t1)
+            if (_0_9_isSet)
+              t1 = _0_9;
+            else {
+              _0_9 = _0_2 > 0;
+              t1 = _0_9;
+            }
+          else
+            t1 = false;
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits(1 / 0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          if (_0_11) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits(-0.0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          _0_13 = "down" === strategy;
+          t1 = _0_13;
+          if (t1)
+            t1 = _0_2 < 0;
+          else
+            t1 = false;
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits(-1 / 0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          if (_0_13) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits(0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          t1 = A.throwExpression(A.UnsupportedError$("Invalid argument: " + strategy + "."));
+        }
+        return t1;
+      }
+      stepWithNumberUnit = step.convertValueToMatch$1(number);
+      $label1$1: {
+        if ("nearest" === strategy) {
+          t1 = B.JSNumber_methods.round$0(_0_2 / stepWithNumberUnit);
+          t2 = number.get$numeratorUnits(number);
+          t2 = A.SassNumber_SassNumber$withUnits(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+          t1 = t2;
+          break $label1$1;
+        }
+        if ("up" === strategy) {
+          t2 = _0_2 / stepWithNumberUnit;
+          t1 = t1 < 0 ? B.JSNumber_methods.floor$0(t2) : B.JSNumber_methods.ceil$0(t2);
+          t2 = number.get$numeratorUnits(number);
+          t2 = A.SassNumber_SassNumber$withUnits(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+          t1 = t2;
+          break $label1$1;
+        }
+        if ("down" === strategy) {
+          t2 = _0_2 / stepWithNumberUnit;
+          t1 = t1 < 0 ? B.JSNumber_methods.ceil$0(t2) : B.JSNumber_methods.floor$0(t2);
+          t2 = number.get$numeratorUnits(number);
+          t2 = A.SassNumber_SassNumber$withUnits(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+          t1 = t2;
+          break $label1$1;
+        }
+        if ("to-zero" === strategy) {
+          t1 = _0_2 / stepWithNumberUnit;
+          if (_0_2 < 0) {
+            t1 = B.JSNumber_methods.ceil$0(t1);
+            t2 = number.get$numeratorUnits(number);
+            t2 = A.SassNumber_SassNumber$withUnits(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+            t1 = t2;
+          } else {
+            t1 = B.JSNumber_methods.floor$0(t1);
+            t2 = number.get$numeratorUnits(number);
+            t2 = A.SassNumber_SassNumber$withUnits(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+            t1 = t2;
+          }
+          break $label1$1;
+        }
+        t1 = number.get$numeratorUnits(number);
+        t1 = A.SassNumber_SassNumber$withUnits(0 / 0, number.get$denominatorUnits(number), t1);
+        break $label1$1;
+      }
+      return t1;
+    },
+    SassCalculation__simplify(arg) {
+      var t1, _0_11_isSet, _0_11, _0_12, _0_15, _0_16_isSet, _0_16, text, _0_12_isSet, _0_15_isSet, value, _null = null,
+        _s32_ = " can't be used in a calculation.";
+      $label0$0: {
+        if (arg instanceof A.SassNumber || arg instanceof A.CalculationOperation) {
+          t1 = arg;
+          break $label0$0;
+        }
+        t1 = arg instanceof A.SassString;
+        if (t1 && !arg._hasQuotes) {
+          t1 = arg;
+          break $label0$0;
+        }
+        if (t1)
+          A.throwExpression(A.SassScriptException$("Quoted string " + arg.toString$0(0) + _s32_, _null));
+        _0_11_isSet = arg instanceof A.SassCalculation;
+        if (_0_11_isSet) {
+          _0_11 = "calc" === arg.name;
+          if (_0_11) {
+            _0_12 = arg.$arguments;
+            _0_15 = _0_12.length === 1;
+            _0_16_isSet = _0_15;
+            if (_0_16_isSet) {
+              _0_16 = _0_12[0];
+              t1 = _0_16;
+              if (t1 instanceof A.SassString) {
+                type$.SassString._as(_0_16);
+                if (!_0_16._hasQuotes) {
+                  text = _0_16._string$_text;
+                  t1 = A.SassCalculation__needsParentheses(text);
+                } else {
+                  text = _null;
+                  t1 = false;
+                }
+              } else {
+                text = _null;
+                t1 = false;
+              }
+            } else {
+              text = _null;
+              _0_16 = text;
+              t1 = false;
+            }
+          } else {
+            text = _null;
+            _0_16 = text;
+            _0_12 = _0_16;
+            _0_15 = _0_12;
+            _0_16_isSet = false;
+            t1 = false;
+          }
+          _0_12_isSet = _0_11;
+          _0_15_isSet = _0_12_isSet;
+        } else {
+          text = _null;
+          _0_16 = text;
+          _0_12 = _0_16;
+          _0_15 = _0_12;
+          _0_11 = _0_15;
+          _0_15_isSet = false;
+          _0_12_isSet = false;
+          _0_16_isSet = false;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = new A.SassString("(" + A.S(text) + ")", false);
+          break $label0$0;
+        }
+        if (_0_11_isSet)
+          if (_0_11)
+            if (_0_15_isSet)
+              t1 = _0_15;
+            else {
+              if (_0_12_isSet)
+                t1 = _0_12;
+              else {
+                _0_12 = arg.$arguments;
+                t1 = _0_12;
+                _0_12_isSet = true;
+              }
+              _0_15 = t1.length === 1;
+              t1 = _0_15;
+            }
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1) {
+          if (_0_16_isSet)
+            value = _0_16;
+          else {
+            _0_16 = (_0_12_isSet ? _0_12 : arg.$arguments)[0];
+            value = _0_16;
+          }
+          t1 = value;
+          break $label0$0;
+        }
+        if (_0_11_isSet) {
+          t1 = arg;
+          break $label0$0;
+        }
+        if (arg instanceof A.Value)
+          A.throwExpression(A.SassScriptException$("Value " + arg.toString$0(0) + _s32_, _null));
+        t1 = A.throwExpression(A.ArgumentError$("Unexpected calculation argument " + A.S(arg) + ".", _null));
+      }
+      return t1;
+    },
+    SassCalculation__needsParentheses(text) {
+      var t1, couldBeVar, second, third, fourth, i, t2,
+        first = text.charCodeAt(0);
+      if (first === 32 || first === 9 || first === 10 || first === 13 || first === 12 || first === 47 || first === 42)
+        return true;
+      t1 = text.length;
+      couldBeVar = t1 >= 4 && A.characterEqualsIgnoreCase(first, 118);
+      if (t1 < 2)
+        return false;
+      second = text.charCodeAt(1);
+      if (second === 32 || second === 9 || second === 10 || second === 13 || second === 12 || second === 47 || second === 42)
+        return true;
+      couldBeVar = couldBeVar && A.characterEqualsIgnoreCase(second, 97);
+      if (t1 < 3)
+        return false;
+      third = text.charCodeAt(2);
+      if (third === 32 || third === 9 || third === 10 || third === 13 || third === 12 || third === 47 || third === 42)
+        return true;
+      couldBeVar = couldBeVar && A.characterEqualsIgnoreCase(third, 114);
+      if (t1 < 4)
+        return false;
+      fourth = text.charCodeAt(3);
+      if (couldBeVar && fourth === 40)
+        return true;
+      if (fourth === 32 || fourth === 9 || fourth === 10 || fourth === 13 || fourth === 12 || fourth === 47 || fourth === 42)
+        return true;
+      for (i = 4; i < t1; ++i) {
+        t2 = text.charCodeAt(i);
+        if (t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12 || t2 === 47 || t2 === 42)
+          return true;
+      }
+      return false;
+    },
+    SassCalculation__verifyCompatibleNumbers(args) {
+      var t1, _i, t2, arg, i, number1, j, number2;
+      for (t1 = args.length, _i = 0; t2 = args.length, _i < t2; args.length === t1 || (0, A.throwConcurrentModificationError)(args), ++_i) {
+        arg = args[_i];
+        if (arg instanceof A.SassNumber && arg.get$hasComplexUnits())
+          throw A.wrapException(A.SassScriptException$("Number " + A.S(arg) + " isn't compatible with CSS calculations.", null));
+      }
+      for (t1 = t2, i = 0; i < t1 - 1; ++i) {
+        number1 = args[i];
+        if (!(number1 instanceof A.SassNumber))
+          continue;
+        for (j = i + 1; t1 = args.length, j < t1; ++j) {
+          number2 = args[j];
+          if (!(number2 instanceof A.SassNumber))
+            continue;
+          if (number1.hasPossiblyCompatibleUnits$1(number2))
+            continue;
+          throw A.wrapException(A.SassScriptException$(number1.toString$0(0) + " and " + number2.toString$0(0) + " are incompatible.", null));
+        }
+      }
+    },
+    SassCalculation__verifyLength(args, expectedLength) {
+      var t1;
+      if (args.length === expectedLength)
+        return;
+      if (B.JSArray_methods.any$1(args, new A.SassCalculation__verifyLength_closure()))
+        return;
+      t1 = args.length;
+      throw A.wrapException(A.SassScriptException$("" + expectedLength + " arguments required, but only " + t1 + " " + A.pluralize("was", t1, "were") + " passed.", null));
+    },
+    SassCalculation__singleArgument($name, argument, mathFunc, forbidUnits) {
+      argument = A.SassCalculation__simplify(argument);
+      if (!(argument instanceof A.SassNumber))
+        return new A.SassCalculation($name, A._setArrayType([argument], type$.JSArray_Object));
+      if (forbidUnits)
+        argument.assertNoUnits$0();
+      return mathFunc.call$1(argument);
+    },
+    SassCalculation: function SassCalculation(t0, t1) {
+      this.name = t0;
+      this.$arguments = t1;
+    },
+    SassCalculation__verifyLength_closure: function SassCalculation__verifyLength_closure() {
+    },
+    CalculationOperation: function CalculationOperation(t0, t1, t2) {
+      this._operator = t0;
+      this._left = t1;
+      this._right = t2;
+    },
+    CalculationOperator: function CalculationOperator(t0, t1, t2, t3) {
+      var _ = this;
+      _.name = t0;
+      _.operator = t1;
+      _.precedence = t2;
+      _._name = t3;
+    },
+    SassColor$rgb(red, green, blue, alpha) {
+      var _null = null,
+        t1 = new A.SassColor(red, green, blue, _null, _null, _null, A.fuzzyAssertRange(A.SassColor__handleNullAlpha(alpha), 0, 1, "alpha"), _null);
+      A.RangeError_checkValueInInterval(t1.get$red(0), 0, 255, "red");
+      A.RangeError_checkValueInInterval(t1.get$green(0), 0, 255, "green");
+      A.RangeError_checkValueInInterval(t1.get$blue(0), 0, 255, "blue");
+      return t1;
+    },
+    SassColor$rgbInternal(_red, _green, _blue, alpha, format) {
+      var t1 = new A.SassColor(_red, _green, _blue, null, null, null, A.fuzzyAssertRange(alpha, 0, 1, "alpha"), format);
+      A.RangeError_checkValueInInterval(t1.get$red(0), 0, 255, "red");
+      A.RangeError_checkValueInInterval(t1.get$green(0), 0, 255, "green");
+      A.RangeError_checkValueInInterval(t1.get$blue(0), 0, 255, "blue");
+      return t1;
+    },
+    SassColor$hslInternal(hue, saturation, lightness, alpha, format) {
+      return new A.SassColor(null, null, null, B.JSNumber_methods.$mod(hue, 360), A.fuzzyAssertRange(saturation, 0, 100, "saturation"), A.fuzzyAssertRange(lightness, 0, 100, "lightness"), A.fuzzyAssertRange(alpha, 0, 1, "alpha"), format);
+    },
+    SassColor_SassColor$hwb(hue, whiteness, blackness, alpha) {
+      var t2, t1 = {},
+        scaledHue = B.JSNumber_methods.$mod(hue, 360) / 360,
+        scaledWhiteness = t1.scaledWhiteness = A.fuzzyAssertRange(whiteness, 0, 100, "whiteness") / 100,
+        scaledBlackness = A.fuzzyAssertRange(blackness, 0, 100, "blackness") / 100,
+        sum = scaledWhiteness + scaledBlackness;
+      if (sum > 1) {
+        t2 = t1.scaledWhiteness = scaledWhiteness / sum;
+        scaledBlackness /= sum;
+      } else
+        t2 = scaledWhiteness;
+      t2 = new A.SassColor_SassColor$hwb_toRgb(t1, 1 - t2 - scaledBlackness);
+      return A.SassColor$rgb(t2.call$1(scaledHue + 0.3333333333333333), t2.call$1(scaledHue), t2.call$1(scaledHue - 0.3333333333333333), alpha);
+    },
+    SassColor__handleNullAlpha(alpha) {
+      return alpha;
+    },
+    SassColor__hueToRgb(m1, m2, hue) {
+      var t1;
+      if (hue < 0)
+        ++hue;
+      if (hue > 1)
+        --hue;
+      $label0$0: {
+        if (hue < 0.16666666666666666) {
+          t1 = m1 + (m2 - m1) * hue * 6;
+          break $label0$0;
+        }
+        if (hue < 0.5) {
+          t1 = m2;
+          break $label0$0;
+        }
+        if (hue < 0.6666666666666666) {
+          t1 = m1 + (m2 - m1) * (0.6666666666666666 - hue) * 6;
+          break $label0$0;
+        }
+        t1 = m1;
+        break $label0$0;
+      }
+      return t1;
+    },
+    SassColor: function SassColor(t0, t1, t2, t3, t4, t5, t6, t7) {
+      var _ = this;
+      _._red = t0;
+      _._green = t1;
+      _._blue = t2;
+      _._hue = t3;
+      _._saturation = t4;
+      _._lightness = t5;
+      _._alpha = t6;
+      _.format = t7;
+    },
+    SassColor_SassColor$hwb_toRgb: function SassColor_SassColor$hwb_toRgb(t0, t1) {
+      this._box_0 = t0;
+      this.factor = t1;
+    },
+    _ColorFormatEnum: function _ColorFormatEnum(t0) {
+      this._color$_name = t0;
+    },
+    SpanColorFormat: function SpanColorFormat(t0) {
+      this._color$_span = t0;
+    },
+    SassFunction: function SassFunction(t0) {
+      this.callable = t0;
+    },
+    SassList$(contents, _separator, brackets) {
+      var t1 = new A.SassList(A.List_List$unmodifiable(contents, type$.Value), _separator, brackets);
+      t1.SassList$3$brackets(contents, _separator, brackets);
+      return t1;
+    },
+    SassList: function SassList(t0, t1, t2) {
+      this._list$_contents = t0;
+      this._separator = t1;
+      this._hasBrackets = t2;
+    },
+    SassList_isBlank_closure: function SassList_isBlank_closure() {
+    },
+    ListSeparator: function ListSeparator(t0, t1, t2) {
+      this._list$_name = t0;
+      this.separator = t1;
+      this._name = t2;
+    },
+    SassMap: function SassMap(t0) {
+      this._map$_contents = t0;
+    },
+    SassMixin: function SassMixin(t0) {
+      this.callable = t0;
+    },
+    _SassNull: function _SassNull() {
+    },
+    conversionFactor(unit1, unit2) {
+      var _0_0;
+      if (unit1 === unit2)
+        return 1;
+      _0_0 = B.Map_gQqJO.$index(0, unit1);
+      if (_0_0 != null)
+        return _0_0.$index(0, unit2);
+      return null;
+    },
+    SassNumber_SassNumber(value, unit) {
+      return unit == null ? new A.UnitlessSassNumber(value, null) : new A.SingleUnitSassNumber(unit, value, null);
+    },
+    SassNumber_SassNumber$withUnits(value, denominatorUnits, numeratorUnits) {
+      var _0_4, t1, _0_6, _0_8_isSet, _0_8, _0_10_isSet, _0_10, _0_7, t2, _0_4_isSet, unit, _0_7_isSet, numerators, t3, denominators, unsimplifiedDenominators, valueDouble, _i, denominator, simplifiedAway, i, factor, _1_2, _1_7_isSet, _1_7, _null = null,
+        _0_6_isSet = !false;
+      if (_0_6_isSet) {
+        _0_4 = (numeratorUnits === null ? type$.List_String._as(numeratorUnits) : numeratorUnits).length;
+        t1 = _0_4;
+        _0_6 = t1 <= 0;
+        _0_8_isSet = _0_6;
+      } else {
+        _0_4 = _null;
+        _0_6 = _0_4;
+        _0_8_isSet = true;
+      }
+      if (_0_8_isSet) {
+        _0_8 = denominatorUnits == null;
+        t1 = _0_8;
+        _0_10_isSet = !t1;
+        if (_0_10_isSet) {
+          _0_10 = (denominatorUnits == null ? type$.List_String._as(denominatorUnits) : denominatorUnits).length <= 0;
+          t1 = _0_10;
+        } else {
+          _0_10 = _null;
+          t1 = true;
+        }
+        _0_7 = denominatorUnits;
+      } else {
+        _0_10 = _null;
+        _0_7 = _0_10;
+        _0_8 = _0_7;
+        _0_10_isSet = false;
+        t1 = false;
+      }
+      if (t1)
+        return new A.UnitlessSassNumber(value, _null);
+      t1 = type$.List_String;
+      if (t1._is(numeratorUnits)) {
+        if (_0_6_isSet) {
+          t2 = _0_4;
+          _0_4_isSet = _0_6_isSet;
+        } else {
+          _0_4 = numeratorUnits.length;
+          t2 = _0_4;
+          _0_4_isSet = true;
+        }
+        if (t2 === 1) {
+          unit = numeratorUnits[0];
+          if (_0_8_isSet) {
+            t2 = _0_8;
+            _0_7_isSet = _0_8_isSet;
+          } else {
+            _0_8 = denominatorUnits == null;
+            t2 = _0_8;
+            _0_7 = denominatorUnits;
+            _0_8_isSet = true;
+            _0_7_isSet = true;
+          }
+          if (!t2)
+            if (_0_10_isSet)
+              t2 = _0_10;
+            else {
+              if (_0_7_isSet)
+                t2 = _0_7;
+              else {
+                t2 = denominatorUnits;
+                _0_7 = t2;
+                _0_7_isSet = true;
+              }
+              _0_10 = (t2 == null ? t1._as(t2) : t2).length <= 0;
+              t2 = _0_10;
+              _0_10_isSet = true;
+            }
+          else
+            t2 = true;
+        } else {
+          unit = _null;
+          _0_7_isSet = _0_8_isSet;
+          t2 = false;
+        }
+      } else {
+        unit = _null;
+        _0_7_isSet = _0_8_isSet;
+        _0_4_isSet = _0_6_isSet;
+        t2 = false;
+      }
+      if (t2)
+        return new A.SingleUnitSassNumber(unit, value, _null);
+      t2 = numeratorUnits === null;
+      if (!t2) {
+        numerators = numeratorUnits;
+        if (_0_8_isSet)
+          t3 = _0_8;
+        else {
+          if (_0_7_isSet)
+            t3 = _0_7;
+          else {
+            t3 = denominatorUnits;
+            _0_7 = t3;
+            _0_7_isSet = true;
+          }
+          _0_8 = t3 == null;
+          t3 = _0_8;
+        }
+        if (!t3)
+          if (_0_10_isSet)
+            t3 = _0_10;
+          else {
+            if (_0_7_isSet)
+              t3 = _0_7;
+            else {
+              t3 = denominatorUnits;
+              _0_7 = t3;
+              _0_7_isSet = true;
+            }
+            _0_10 = (t3 == null ? t1._as(t3) : t3).length <= 0;
+            t3 = _0_10;
+          }
+        else
+          t3 = true;
+      } else {
+        numerators = _null;
+        t3 = false;
+      }
+      if (t3)
+        return new A.ComplexSassNumber(A.List_List$unmodifiable(numerators, type$.String), B.List_empty, value, _null);
+      if (!false)
+        if (_0_6_isSet)
+          t2 = _0_6;
+        else {
+          if (_0_4_isSet)
+            t2 = _0_4;
+          else {
+            _0_4 = (t2 ? t1._as(numeratorUnits) : numeratorUnits).length;
+            t2 = _0_4;
+          }
+          _0_6 = t2 <= 0;
+          t2 = _0_6;
+        }
+      else
+        t2 = true;
+      if (t2) {
+        if (_0_7_isSet)
+          t2 = _0_7;
+        else {
+          t2 = denominatorUnits;
+          _0_7 = t2;
+          _0_7_isSet = true;
+        }
+        t2 = t2 != null;
+        if (t2) {
+          denominators = _0_7_isSet ? _0_7 : denominatorUnits;
+          if (denominators == null)
+            denominators = t1._as(denominators);
+        } else
+          denominators = _null;
+        t1 = t2;
+      } else {
+        denominators = _null;
+        t1 = false;
+      }
+      if (t1)
+        return new A.ComplexSassNumber(B.List_empty, A.List_List$unmodifiable(denominators, type$.String), value, _null);
+      numerators = A._setArrayType(numeratorUnits.slice(0), A._arrayInstanceType(numeratorUnits));
+      unsimplifiedDenominators = A._setArrayType(denominatorUnits.slice(0), A.instanceType(denominatorUnits));
+      denominators = A._setArrayType([], type$.JSArray_String);
+      for (t1 = unsimplifiedDenominators.length, valueDouble = value, _i = 0; _i < unsimplifiedDenominators.length; unsimplifiedDenominators.length === t1 || (0, A.throwConcurrentModificationError)(unsimplifiedDenominators), ++_i) {
+        denominator = unsimplifiedDenominators[_i];
+        i = 0;
+        while (true) {
+          if (!(i < numerators.length)) {
+            simplifiedAway = false;
+            break;
+          }
+          c$0: {
+            factor = A.conversionFactor(denominator, numerators[i]);
+            if (factor == null)
+              break c$0;
+            valueDouble *= factor;
+            B.JSArray_methods.removeAt$1(numerators, i);
+            simplifiedAway = true;
+            break;
+          }
+          ++i;
+        }
+        if (!simplifiedAway)
+          denominators.push(denominator);
+      }
+      $label0$1: {
+        _1_2 = numerators.length;
+        t1 = _1_2;
+        _1_7_isSet = t1 <= 0;
+        if (_1_7_isSet) {
+          _1_7 = denominators.length <= 0;
+          t1 = _1_7;
+        } else {
+          _1_7 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = new A.UnitlessSassNumber(valueDouble, _null);
+          break $label0$1;
+        }
+        if (_1_2 === 1) {
+          unit = numerators[0];
+          t1 = _1_7_isSet ? _1_7 : denominators.length <= 0;
+        } else {
+          unit = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = new A.SingleUnitSassNumber(unit, valueDouble, _null);
+          break $label0$1;
+        }
+        t1 = type$.String;
+        t1 = new A.ComplexSassNumber(A.List_List$unmodifiable(numerators, t1), A.List_List$unmodifiable(denominators, t1), valueDouble, _null);
+        break $label0$1;
+      }
+      return t1;
+    },
+    SassNumber: function SassNumber() {
+    },
+    SassNumber__coerceOrConvertValue_compatibilityException: function SassNumber__coerceOrConvertValue_compatibilityException(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.other = t1;
+      _.otherName = t2;
+      _.otherHasUnits = t3;
+      _.name = t4;
+      _.newNumerators = t5;
+      _.newDenominators = t6;
+    },
+    SassNumber__coerceOrConvertValue_closure: function SassNumber__coerceOrConvertValue_closure(t0, t1) {
+      this._box_0 = t0;
+      this.newNumerator = t1;
+    },
+    SassNumber__coerceOrConvertValue_closure0: function SassNumber__coerceOrConvertValue_closure0(t0) {
+      this.compatibilityException = t0;
+    },
+    SassNumber__coerceOrConvertValue_closure1: function SassNumber__coerceOrConvertValue_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.newDenominator = t1;
+    },
+    SassNumber__coerceOrConvertValue_closure2: function SassNumber__coerceOrConvertValue_closure2(t0) {
+      this.compatibilityException = t0;
+    },
+    SassNumber_plus_closure: function SassNumber_plus_closure() {
+    },
+    SassNumber_minus_closure: function SassNumber_minus_closure() {
+    },
+    SassNumber_multiplyUnits_closure: function SassNumber_multiplyUnits_closure(t0, t1) {
+      this._box_0 = t0;
+      this.numerator = t1;
+    },
+    SassNumber_multiplyUnits_closure0: function SassNumber_multiplyUnits_closure0(t0, t1) {
+      this.newNumerators = t0;
+      this.numerator = t1;
+    },
+    SassNumber_multiplyUnits_closure1: function SassNumber_multiplyUnits_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.numerator = t1;
+    },
+    SassNumber_multiplyUnits_closure2: function SassNumber_multiplyUnits_closure2(t0, t1) {
+      this.newNumerators = t0;
+      this.numerator = t1;
+    },
+    SassNumber__areAnyConvertible_closure: function SassNumber__areAnyConvertible_closure(t0) {
+      this.units2 = t0;
+    },
+    SassNumber__canonicalizeUnitList_closure: function SassNumber__canonicalizeUnitList_closure() {
+    },
+    SassNumber__canonicalMultiplier_closure: function SassNumber__canonicalMultiplier_closure(t0) {
+      this.$this = t0;
+    },
+    SassNumber_unitSuggestion_closure: function SassNumber_unitSuggestion_closure() {
+    },
+    SassNumber_unitSuggestion_closure0: function SassNumber_unitSuggestion_closure0() {
+    },
+    ComplexSassNumber: function ComplexSassNumber(t0, t1, t2, t3) {
+      var _ = this;
+      _._numeratorUnits = t0;
+      _._denominatorUnits = t1;
+      _._number$_value = t2;
+      _.hashCache = null;
+      _.asSlash = t3;
+    },
+    SingleUnitSassNumber: function SingleUnitSassNumber(t0, t1, t2) {
+      var _ = this;
+      _._unit = t0;
+      _._number$_value = t1;
+      _.hashCache = null;
+      _.asSlash = t2;
+    },
+    SingleUnitSassNumber__coerceToUnit_closure: function SingleUnitSassNumber__coerceToUnit_closure(t0, t1) {
+      this.$this = t0;
+      this.unit = t1;
+    },
+    SingleUnitSassNumber__coerceValueToUnit_closure: function SingleUnitSassNumber__coerceValueToUnit_closure(t0) {
+      this.$this = t0;
+    },
+    SingleUnitSassNumber_multiplyUnits_closure: function SingleUnitSassNumber_multiplyUnits_closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    SingleUnitSassNumber_multiplyUnits_closure0: function SingleUnitSassNumber_multiplyUnits_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    UnitlessSassNumber: function UnitlessSassNumber(t0, t1) {
+      this._number$_value = t0;
+      this.hashCache = null;
+      this.asSlash = t1;
+    },
+    SassString$(_text, quotes) {
+      return new A.SassString(_text, quotes);
+    },
+    SassString: function SassString(t0, t1) {
+      var _ = this;
+      _._string$_text = t0;
+      _._hasQuotes = t1;
+      _.__SassString__sassLength_FI = $;
+      _._hashCache = null;
+    },
+    AnySelectorVisitor: function AnySelectorVisitor() {
+    },
+    AnySelectorVisitor_visitComplexSelector_closure: function AnySelectorVisitor_visitComplexSelector_closure(t0) {
+      this.$this = t0;
+    },
+    AnySelectorVisitor_visitCompoundSelector_closure: function AnySelectorVisitor_visitCompoundSelector_closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor$0(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t1 = type$.Uri,
+        t2 = type$.Module_AsyncCallable,
+        t3 = A._setArrayType([], type$.JSArray_Record_2_String_and_AstNode);
+      t1 = new A._EvaluateVisitor0(importCache, nodeImporter, A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.AsyncCallable), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Configuration), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode), logger, A.LinkedHashSet_LinkedHashSet$_empty(type$.Record_2_String_and_SourceSpan), quietDeps, sourceMap, A.AsyncEnvironment$(), A.LinkedHashSet_LinkedHashSet$_empty(t1), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.nullable_AstNode), t3, B.Configuration_Map_empty_null);
+      t1._EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap0(functions, importCache, logger, nodeImporter, quietDeps, sourceMap);
+      return t1;
+    },
+    _EvaluateVisitor0: function _EvaluateVisitor0(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15) {
+      var _ = this;
+      _._async_evaluate$_importCache = t0;
+      _._async_evaluate$_nodeImporter = t1;
+      _._async_evaluate$_builtInFunctions = t2;
+      _._async_evaluate$_builtInModules = t3;
+      _._async_evaluate$_modules = t4;
+      _._async_evaluate$_moduleConfigurations = t5;
+      _._async_evaluate$_moduleNodes = t6;
+      _._async_evaluate$_logger = t7;
+      _._async_evaluate$_warningsEmitted = t8;
+      _._async_evaluate$_quietDeps = t9;
+      _._async_evaluate$_sourceMap = t10;
+      _._async_evaluate$_environment = t11;
+      _._async_evaluate$_declarationName = _._async_evaluate$__parent = _._async_evaluate$_mediaQuerySources = _._async_evaluate$_mediaQueries = _._async_evaluate$_styleRuleIgnoringAtRoot = null;
+      _._async_evaluate$_member = "root stylesheet";
+      _._async_evaluate$_importSpan = _._async_evaluate$_callableNode = _._async_evaluate$_currentCallable = null;
+      _._async_evaluate$_inSupportsDeclaration = _._async_evaluate$_inKeyframes = _._async_evaluate$_atRootExcludingStyleRule = _._async_evaluate$_inUnknownAtRule = _._async_evaluate$_inFunction = false;
+      _._async_evaluate$_loadedUrls = t12;
+      _._async_evaluate$_activeModules = t13;
+      _._async_evaluate$_stack = t14;
+      _._async_evaluate$_importer = null;
+      _._async_evaluate$_inDependency = false;
+      _._async_evaluate$__extensionStore = _._async_evaluate$_preModuleComments = _._async_evaluate$_outOfOrderImports = _._async_evaluate$__endOfImports = _._async_evaluate$__root = _._async_evaluate$__stylesheet = null;
+      _._async_evaluate$_configuration = t15;
+    },
+    _EvaluateVisitor_closure12: function _EvaluateVisitor_closure12(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure13: function _EvaluateVisitor_closure13(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure14: function _EvaluateVisitor_closure14(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure15: function _EvaluateVisitor_closure15(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure16: function _EvaluateVisitor_closure16(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure17: function _EvaluateVisitor_closure17(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure18: function _EvaluateVisitor_closure18(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure19: function _EvaluateVisitor_closure19(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure20: function _EvaluateVisitor_closure20(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure6: function _EvaluateVisitor__closure6(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure21: function _EvaluateVisitor_closure21(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure5: function _EvaluateVisitor__closure5(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure22: function _EvaluateVisitor_closure22(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure23: function _EvaluateVisitor_closure23(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure3: function _EvaluateVisitor__closure3(t0, t1, t2) {
+      this.values = t0;
+      this.span = t1;
+      this.callableNode = t2;
+    },
+    _EvaluateVisitor__closure4: function _EvaluateVisitor__closure4(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure24: function _EvaluateVisitor_closure24(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_run_closure0: function _EvaluateVisitor_run_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.importer = t2;
+    },
+    _EvaluateVisitor_run__closure0: function _EvaluateVisitor_run__closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.importer = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__loadModule_closure1: function _EvaluateVisitor__loadModule_closure1(t0, t1) {
+      this._box_1 = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__loadModule_closure2: function _EvaluateVisitor__loadModule_closure2(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.url = t1;
+      _.nodeWithSpan = t2;
+      _.baseUrl = t3;
+      _.namesInErrors = t4;
+      _.configuration = t5;
+      _.callback = t6;
+    },
+    _EvaluateVisitor__loadModule__closure1: function _EvaluateVisitor__loadModule__closure1(t0, t1) {
+      this.$this = t0;
+      this.message = t1;
+    },
+    _EvaluateVisitor__loadModule__closure2: function _EvaluateVisitor__loadModule__closure2(t0, t1, t2) {
+      this._box_0 = t0;
+      this.callback = t1;
+      this.firstLoad = t2;
+    },
+    _EvaluateVisitor__execute_closure0: function _EvaluateVisitor__execute_closure0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.stylesheet = t2;
+      _.extensionStore = t3;
+      _.configuration = t4;
+      _.css = t5;
+      _.preModuleComments = t6;
+    },
+    _EvaluateVisitor__combineCss_closure1: function _EvaluateVisitor__combineCss_closure1() {
+    },
+    _EvaluateVisitor__combineCss_closure2: function _EvaluateVisitor__combineCss_closure2(t0) {
+      this.selectors = t0;
+    },
+    _EvaluateVisitor__combineCss_visitModule0: function _EvaluateVisitor__combineCss_visitModule0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.seen = t1;
+      _.clone = t2;
+      _.css = t3;
+      _.imports = t4;
+      _.sorted = t5;
+    },
+    _EvaluateVisitor__extendModules_closure1: function _EvaluateVisitor__extendModules_closure1(t0) {
+      this.originalSelectors = t0;
+    },
+    _EvaluateVisitor__extendModules_closure2: function _EvaluateVisitor__extendModules_closure2() {
+    },
+    _EvaluateVisitor_visitAtRootRule_closure1: function _EvaluateVisitor_visitAtRootRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitAtRootRule_closure2: function _EvaluateVisitor_visitAtRootRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure5: function _EvaluateVisitor__scopeForAtRoot_closure5(t0, t1, t2) {
+      this.$this = t0;
+      this.newParent = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure6: function _EvaluateVisitor__scopeForAtRoot_closure6(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure7: function _EvaluateVisitor__scopeForAtRoot_closure7(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot__closure0: function _EvaluateVisitor__scopeForAtRoot__closure0(t0, t1) {
+      this.innerScope = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure8: function _EvaluateVisitor__scopeForAtRoot_closure8(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure9: function _EvaluateVisitor__scopeForAtRoot_closure9() {
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure10: function _EvaluateVisitor__scopeForAtRoot_closure10(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor_visitContentRule_closure0: function _EvaluateVisitor_visitContentRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.content = t1;
+    },
+    _EvaluateVisitor_visitDeclaration_closure0: function _EvaluateVisitor_visitDeclaration_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitEachRule_closure2: function _EvaluateVisitor_visitEachRule_closure2(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure3: function _EvaluateVisitor_visitEachRule_closure3(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure4: function _EvaluateVisitor_visitEachRule_closure4(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.list = t1;
+      _.setVariables = t2;
+      _.node = t3;
+    },
+    _EvaluateVisitor_visitEachRule__closure0: function _EvaluateVisitor_visitEachRule__closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.setVariables = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitEachRule___closure0: function _EvaluateVisitor_visitEachRule___closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure2: function _EvaluateVisitor_visitAtRule_closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure3: function _EvaluateVisitor_visitAtRule_closure3(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.children = t2;
+    },
+    _EvaluateVisitor_visitAtRule__closure0: function _EvaluateVisitor_visitAtRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.children = t1;
+    },
+    _EvaluateVisitor_visitAtRule_closure4: function _EvaluateVisitor_visitAtRule_closure4() {
+    },
+    _EvaluateVisitor_visitForRule_closure4: function _EvaluateVisitor_visitForRule_closure4(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure5: function _EvaluateVisitor_visitForRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure6: function _EvaluateVisitor_visitForRule_closure6(t0) {
+      this.fromNumber = t0;
+    },
+    _EvaluateVisitor_visitForRule_closure7: function _EvaluateVisitor_visitForRule_closure7(t0, t1) {
+      this.toNumber = t0;
+      this.fromNumber = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure8: function _EvaluateVisitor_visitForRule_closure8(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.from = t3;
+      _.direction = t4;
+      _.fromNumber = t5;
+    },
+    _EvaluateVisitor_visitForRule__closure0: function _EvaluateVisitor_visitForRule__closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitForwardRule_closure1: function _EvaluateVisitor_visitForwardRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForwardRule_closure2: function _EvaluateVisitor_visitForwardRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__registerCommentsForModule_closure0: function _EvaluateVisitor__registerCommentsForModule_closure0() {
+    },
+    _EvaluateVisitor_visitIfRule_closure0: function _EvaluateVisitor_visitIfRule_closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIfRule__closure0: function _EvaluateVisitor_visitIfRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.clause = t1;
+    },
+    _EvaluateVisitor_visitIfRule___closure0: function _EvaluateVisitor_visitIfRule___closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport_closure0: function _EvaluateVisitor__visitDynamicImport_closure0(t0, t1) {
+      this.$this = t0;
+      this.$import = t1;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure3: function _EvaluateVisitor__visitDynamicImport__closure3(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure4: function _EvaluateVisitor__visitDynamicImport__closure4() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure5: function _EvaluateVisitor__visitDynamicImport__closure5() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure6: function _EvaluateVisitor__visitDynamicImport__closure6(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.loadsUserDefinedModules = t2;
+      _.environment = t3;
+      _.children = t4;
+    },
+    _EvaluateVisitor__applyMixin_closure1: function _EvaluateVisitor__applyMixin_closure1(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure2: function _EvaluateVisitor__applyMixin__closure2(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin_closure2: function _EvaluateVisitor__applyMixin_closure2(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.contentCallable = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure1: function _EvaluateVisitor__applyMixin__closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin___closure0: function _EvaluateVisitor__applyMixin___closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin____closure0: function _EvaluateVisitor__applyMixin____closure0(t0, t1) {
+      this.$this = t0;
+      this.statement = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure2: function _EvaluateVisitor_visitIncludeRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure3: function _EvaluateVisitor_visitIncludeRule_closure3(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure4: function _EvaluateVisitor_visitIncludeRule_closure4(t0) {
+      this.node = t0;
+    },
+    _EvaluateVisitor_visitMediaRule_closure2: function _EvaluateVisitor_visitMediaRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.queries = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure3: function _EvaluateVisitor_visitMediaRule_closure3(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.queries = t2;
+      _.mergedSources = t3;
+      _.node = t4;
+    },
+    _EvaluateVisitor_visitMediaRule__closure0: function _EvaluateVisitor_visitMediaRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule___closure0: function _EvaluateVisitor_visitMediaRule___closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure4: function _EvaluateVisitor_visitMediaRule_closure4(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitStyleRule_closure4: function _EvaluateVisitor_visitStyleRule_closure4(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure5: function _EvaluateVisitor_visitStyleRule_closure5() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure7: function _EvaluateVisitor_visitStyleRule_closure7(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitStyleRule__closure0: function _EvaluateVisitor_visitStyleRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure6: function _EvaluateVisitor_visitStyleRule_closure6() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure8: function _EvaluateVisitor_visitStyleRule_closure8() {
+    },
+    _EvaluateVisitor_visitSupportsRule_closure1: function _EvaluateVisitor_visitSupportsRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule__closure0: function _EvaluateVisitor_visitSupportsRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule_closure2: function _EvaluateVisitor_visitSupportsRule_closure2() {
+    },
+    _EvaluateVisitor__visitSupportsCondition_closure0: function _EvaluateVisitor__visitSupportsCondition_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure2: function _EvaluateVisitor_visitVariableDeclaration_closure2(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure3: function _EvaluateVisitor_visitVariableDeclaration_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure4: function _EvaluateVisitor_visitVariableDeclaration_closure4(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.value = t2;
+    },
+    _EvaluateVisitor_visitUseRule_closure0: function _EvaluateVisitor_visitUseRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWarnRule_closure0: function _EvaluateVisitor_visitWarnRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule_closure0: function _EvaluateVisitor_visitWhileRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule__closure0: function _EvaluateVisitor_visitWhileRule__closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitBinaryOperationExpression_closure0: function _EvaluateVisitor_visitBinaryOperationExpression_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__slash_recommendation0: function _EvaluateVisitor__slash_recommendation0() {
+    },
+    _EvaluateVisitor_visitVariableExpression_closure0: function _EvaluateVisitor_visitVariableExpression_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitUnaryOperationExpression_closure0: function _EvaluateVisitor_visitUnaryOperationExpression_closure0(t0, t1) {
+      this.node = t0;
+      this.operand = t1;
+    },
+    _EvaluateVisitor_visitListExpression_closure0: function _EvaluateVisitor_visitListExpression_closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure2: function _EvaluateVisitor_visitFunctionExpression_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure3: function _EvaluateVisitor_visitFunctionExpression_closure3() {
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure4: function _EvaluateVisitor_visitFunctionExpression_closure4(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__checkCalculationArguments_check0: function _EvaluateVisitor__checkCalculationArguments_check0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__visitCalculationExpression_closure0: function _EvaluateVisitor__visitCalculationExpression_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.inLegacySassFunction = t3;
+    },
+    _EvaluateVisitor_visitInterpolatedFunctionExpression_closure0: function _EvaluateVisitor_visitInterpolatedFunctionExpression_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.$function = t2;
+    },
+    _EvaluateVisitor__runUserDefinedCallable_closure0: function _EvaluateVisitor__runUserDefinedCallable_closure0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.callable = t1;
+      _.evaluated = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable__closure0: function _EvaluateVisitor__runUserDefinedCallable__closure0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable___closure0: function _EvaluateVisitor__runUserDefinedCallable___closure0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable____closure0: function _EvaluateVisitor__runUserDefinedCallable____closure0() {
+    },
+    _EvaluateVisitor__runFunctionCallable_closure0: function _EvaluateVisitor__runFunctionCallable_closure0(t0, t1) {
+      this.$this = t0;
+      this.callable = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure2: function _EvaluateVisitor__runBuiltInCallable_closure2(t0, t1, t2) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+      this.namedSet = t2;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure3: function _EvaluateVisitor__runBuiltInCallable_closure3(t0, t1) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure4: function _EvaluateVisitor__runBuiltInCallable_closure4() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure3: function _EvaluateVisitor__evaluateArguments_closure3() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure4: function _EvaluateVisitor__evaluateArguments_closure4(t0, t1) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+    },
+    _EvaluateVisitor__evaluateArguments_closure5: function _EvaluateVisitor__evaluateArguments_closure5(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.namedNodes = t3;
+    },
+    _EvaluateVisitor__evaluateArguments_closure6: function _EvaluateVisitor__evaluateArguments_closure6() {
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure3: function _EvaluateVisitor__evaluateMacroArguments_closure3(t0) {
+      this.restArgs = t0;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure4: function _EvaluateVisitor__evaluateMacroArguments_closure4(t0, t1, t2) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+      this.restArgs = t2;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure5: function _EvaluateVisitor__evaluateMacroArguments_closure5(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.restArgs = t3;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure6: function _EvaluateVisitor__evaluateMacroArguments_closure6(t0, t1, t2) {
+      this.$this = t0;
+      this.keywordRestNodeForSpan = t1;
+      this.keywordRestArgs = t2;
+    },
+    _EvaluateVisitor__addRestMap_closure0: function _EvaluateVisitor__addRestMap_closure0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.values = t1;
+      _.convert = t2;
+      _.expressionNode = t3;
+      _.map = t4;
+      _.nodeWithSpan = t5;
+    },
+    _EvaluateVisitor__verifyArguments_closure0: function _EvaluateVisitor__verifyArguments_closure0(t0, t1, t2) {
+      this.$arguments = t0;
+      this.positional = t1;
+      this.named = t2;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure1: function _EvaluateVisitor_visitCssAtRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure2: function _EvaluateVisitor_visitCssAtRule_closure2() {
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure1: function _EvaluateVisitor_visitCssKeyframeBlock_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure2: function _EvaluateVisitor_visitCssKeyframeBlock_closure2() {
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure2: function _EvaluateVisitor_visitCssMediaRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure3: function _EvaluateVisitor_visitCssMediaRule_closure3(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.node = t2;
+      _.mergedSources = t3;
+    },
+    _EvaluateVisitor_visitCssMediaRule__closure0: function _EvaluateVisitor_visitCssMediaRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule___closure0: function _EvaluateVisitor_visitCssMediaRule___closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure4: function _EvaluateVisitor_visitCssMediaRule_closure4(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure2: function _EvaluateVisitor_visitCssStyleRule_closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitCssStyleRule__closure0: function _EvaluateVisitor_visitCssStyleRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure1: function _EvaluateVisitor_visitCssStyleRule_closure1() {
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure1: function _EvaluateVisitor_visitCssSupportsRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule__closure0: function _EvaluateVisitor_visitCssSupportsRule__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure2: function _EvaluateVisitor_visitCssSupportsRule_closure2() {
+    },
+    _EvaluateVisitor__performInterpolationHelper_closure0: function _EvaluateVisitor__performInterpolationHelper_closure0(t0) {
+      this.interpolation = t0;
+    },
+    _EvaluateVisitor__serialize_closure0: function _EvaluateVisitor__serialize_closure0(t0, t1) {
+      this.value = t0;
+      this.quote = t1;
+    },
+    _EvaluateVisitor__expressionNode_closure0: function _EvaluateVisitor__expressionNode_closure0(t0, t1) {
+      this.$this = t0;
+      this.expression = t1;
+    },
+    _EvaluateVisitor__withoutSlash_recommendation0: function _EvaluateVisitor__withoutSlash_recommendation0() {
+    },
+    _EvaluateVisitor__stackFrame_closure0: function _EvaluateVisitor__stackFrame_closure0(t0) {
+      this.$this = t0;
+    },
+    _ImportedCssVisitor0: function _ImportedCssVisitor0(t0) {
+      this._async_evaluate$_visitor = t0;
+    },
+    _ImportedCssVisitor_visitCssAtRule_closure0: function _ImportedCssVisitor_visitCssAtRule_closure0() {
+    },
+    _ImportedCssVisitor_visitCssMediaRule_closure0: function _ImportedCssVisitor_visitCssMediaRule_closure0(t0) {
+      this.hasBeenMerged = t0;
+    },
+    _ImportedCssVisitor_visitCssStyleRule_closure0: function _ImportedCssVisitor_visitCssStyleRule_closure0() {
+    },
+    _ImportedCssVisitor_visitCssSupportsRule_closure0: function _ImportedCssVisitor_visitCssSupportsRule_closure0() {
+    },
+    _EvaluationContext0: function _EvaluationContext0(t0, t1) {
+      this._async_evaluate$_visitor = t0;
+      this._async_evaluate$_defaultWarnNodeWithSpan = t1;
+    },
+    cloneCssStylesheet(stylesheet, extensionStore) {
+      var _0_0 = extensionStore.clone$0();
+      return new A._Record_2(new A._CloneCssVisitor(_0_0._1)._visitChildren$2(A.ModifiableCssStylesheet$(stylesheet.get$span(stylesheet)), stylesheet), _0_0._0);
+    },
+    _CloneCssVisitor: function _CloneCssVisitor(t0) {
+      this._oldToNewSelectors = t0;
+    },
+    _EvaluateVisitor$(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t1 = type$.Uri,
+        t2 = type$.Module_Callable,
+        t3 = A._setArrayType([], type$.JSArray_Record_2_String_and_AstNode);
+      t1 = new A._EvaluateVisitor(importCache, nodeImporter, A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Callable), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Configuration), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode), logger, A.LinkedHashSet_LinkedHashSet$_empty(type$.Record_2_String_and_SourceSpan), quietDeps, sourceMap, A.Environment$(), A.LinkedHashSet_LinkedHashSet$_empty(t1), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.nullable_AstNode), t3, B.Configuration_Map_empty_null);
+      t1._EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap(functions, importCache, logger, nodeImporter, quietDeps, sourceMap);
+      return t1;
+    },
+    Evaluator: function Evaluator(t0, t1) {
+      this._visitor = t0;
+      this._importer = t1;
+    },
+    _EvaluateVisitor: function _EvaluateVisitor(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15) {
+      var _ = this;
+      _._evaluate$_importCache = t0;
+      _._evaluate$_nodeImporter = t1;
+      _._builtInFunctions = t2;
+      _._builtInModules = t3;
+      _._modules = t4;
+      _._moduleConfigurations = t5;
+      _._moduleNodes = t6;
+      _._evaluate$_logger = t7;
+      _._warningsEmitted = t8;
+      _._quietDeps = t9;
+      _._sourceMap = t10;
+      _._environment = t11;
+      _._declarationName = _.__parent = _._mediaQuerySources = _._mediaQueries = _._styleRuleIgnoringAtRoot = null;
+      _._member = "root stylesheet";
+      _._importSpan = _._callableNode = _._currentCallable = null;
+      _._inSupportsDeclaration = _._inKeyframes = _._atRootExcludingStyleRule = _._inUnknownAtRule = _._inFunction = false;
+      _._loadedUrls = t12;
+      _._activeModules = t13;
+      _._stack = t14;
+      _._importer = null;
+      _._inDependency = false;
+      _.__extensionStore = _._preModuleComments = _._outOfOrderImports = _.__endOfImports = _.__root = _.__stylesheet = null;
+      _._configuration = t15;
+    },
+    _EvaluateVisitor_closure: function _EvaluateVisitor_closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure0: function _EvaluateVisitor_closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure1: function _EvaluateVisitor_closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure2: function _EvaluateVisitor_closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure3: function _EvaluateVisitor_closure3(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure4: function _EvaluateVisitor_closure4(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure5: function _EvaluateVisitor_closure5(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure6: function _EvaluateVisitor_closure6(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure7: function _EvaluateVisitor_closure7(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure2: function _EvaluateVisitor__closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure8: function _EvaluateVisitor_closure8(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure1: function _EvaluateVisitor__closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure9: function _EvaluateVisitor_closure9(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure10: function _EvaluateVisitor_closure10(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure: function _EvaluateVisitor__closure(t0, t1, t2) {
+      this.values = t0;
+      this.span = t1;
+      this.callableNode = t2;
+    },
+    _EvaluateVisitor__closure0: function _EvaluateVisitor__closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure11: function _EvaluateVisitor_closure11(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_run_closure: function _EvaluateVisitor_run_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.importer = t2;
+    },
+    _EvaluateVisitor_run__closure: function _EvaluateVisitor_run__closure(t0, t1, t2) {
+      this.$this = t0;
+      this.importer = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_runExpression_closure: function _EvaluateVisitor_runExpression_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.importer = t1;
+      this.expression = t2;
+    },
+    _EvaluateVisitor_runExpression__closure: function _EvaluateVisitor_runExpression__closure(t0, t1) {
+      this.$this = t0;
+      this.expression = t1;
+    },
+    _EvaluateVisitor_runExpression___closure: function _EvaluateVisitor_runExpression___closure(t0, t1) {
+      this.$this = t0;
+      this.expression = t1;
+    },
+    _EvaluateVisitor_runStatement_closure: function _EvaluateVisitor_runStatement_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.importer = t1;
+      this.statement = t2;
+    },
+    _EvaluateVisitor_runStatement__closure: function _EvaluateVisitor_runStatement__closure(t0, t1) {
+      this.$this = t0;
+      this.statement = t1;
+    },
+    _EvaluateVisitor_runStatement___closure: function _EvaluateVisitor_runStatement___closure(t0, t1) {
+      this.$this = t0;
+      this.statement = t1;
+    },
+    _EvaluateVisitor__loadModule_closure: function _EvaluateVisitor__loadModule_closure(t0, t1) {
+      this._box_1 = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__loadModule_closure0: function _EvaluateVisitor__loadModule_closure0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.url = t1;
+      _.nodeWithSpan = t2;
+      _.baseUrl = t3;
+      _.namesInErrors = t4;
+      _.configuration = t5;
+      _.callback = t6;
+    },
+    _EvaluateVisitor__loadModule__closure: function _EvaluateVisitor__loadModule__closure(t0, t1) {
+      this.$this = t0;
+      this.message = t1;
+    },
+    _EvaluateVisitor__loadModule__closure0: function _EvaluateVisitor__loadModule__closure0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.callback = t1;
+      this.firstLoad = t2;
+    },
+    _EvaluateVisitor__execute_closure: function _EvaluateVisitor__execute_closure(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.stylesheet = t2;
+      _.extensionStore = t3;
+      _.configuration = t4;
+      _.css = t5;
+      _.preModuleComments = t6;
+    },
+    _EvaluateVisitor__combineCss_closure: function _EvaluateVisitor__combineCss_closure() {
+    },
+    _EvaluateVisitor__combineCss_closure0: function _EvaluateVisitor__combineCss_closure0(t0) {
+      this.selectors = t0;
+    },
+    _EvaluateVisitor__combineCss_visitModule: function _EvaluateVisitor__combineCss_visitModule(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.seen = t1;
+      _.clone = t2;
+      _.css = t3;
+      _.imports = t4;
+      _.sorted = t5;
+    },
+    _EvaluateVisitor__extendModules_closure: function _EvaluateVisitor__extendModules_closure(t0) {
+      this.originalSelectors = t0;
+    },
+    _EvaluateVisitor__extendModules_closure0: function _EvaluateVisitor__extendModules_closure0() {
+    },
+    _EvaluateVisitor_visitAtRootRule_closure: function _EvaluateVisitor_visitAtRootRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitAtRootRule_closure0: function _EvaluateVisitor_visitAtRootRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure: function _EvaluateVisitor__scopeForAtRoot_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.newParent = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure0: function _EvaluateVisitor__scopeForAtRoot_closure0(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure1: function _EvaluateVisitor__scopeForAtRoot_closure1(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot__closure: function _EvaluateVisitor__scopeForAtRoot__closure(t0, t1) {
+      this.innerScope = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure2: function _EvaluateVisitor__scopeForAtRoot_closure2(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure3: function _EvaluateVisitor__scopeForAtRoot_closure3() {
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure4: function _EvaluateVisitor__scopeForAtRoot_closure4(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor_visitContentRule_closure: function _EvaluateVisitor_visitContentRule_closure(t0, t1) {
+      this.$this = t0;
+      this.content = t1;
+    },
+    _EvaluateVisitor_visitDeclaration_closure: function _EvaluateVisitor_visitDeclaration_closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitEachRule_closure: function _EvaluateVisitor_visitEachRule_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure0: function _EvaluateVisitor_visitEachRule_closure0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure1: function _EvaluateVisitor_visitEachRule_closure1(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.list = t1;
+      _.setVariables = t2;
+      _.node = t3;
+    },
+    _EvaluateVisitor_visitEachRule__closure: function _EvaluateVisitor_visitEachRule__closure(t0, t1, t2) {
+      this.$this = t0;
+      this.setVariables = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitEachRule___closure: function _EvaluateVisitor_visitEachRule___closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure: function _EvaluateVisitor_visitAtRule_closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure0: function _EvaluateVisitor_visitAtRule_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.children = t2;
+    },
+    _EvaluateVisitor_visitAtRule__closure: function _EvaluateVisitor_visitAtRule__closure(t0, t1) {
+      this.$this = t0;
+      this.children = t1;
+    },
+    _EvaluateVisitor_visitAtRule_closure1: function _EvaluateVisitor_visitAtRule_closure1() {
+    },
+    _EvaluateVisitor_visitForRule_closure: function _EvaluateVisitor_visitForRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure0: function _EvaluateVisitor_visitForRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure1: function _EvaluateVisitor_visitForRule_closure1(t0) {
+      this.fromNumber = t0;
+    },
+    _EvaluateVisitor_visitForRule_closure2: function _EvaluateVisitor_visitForRule_closure2(t0, t1) {
+      this.toNumber = t0;
+      this.fromNumber = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure3: function _EvaluateVisitor_visitForRule_closure3(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.from = t3;
+      _.direction = t4;
+      _.fromNumber = t5;
+    },
+    _EvaluateVisitor_visitForRule__closure: function _EvaluateVisitor_visitForRule__closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitForwardRule_closure: function _EvaluateVisitor_visitForwardRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForwardRule_closure0: function _EvaluateVisitor_visitForwardRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__registerCommentsForModule_closure: function _EvaluateVisitor__registerCommentsForModule_closure() {
+    },
+    _EvaluateVisitor_visitIfRule_closure: function _EvaluateVisitor_visitIfRule_closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIfRule__closure: function _EvaluateVisitor_visitIfRule__closure(t0, t1) {
+      this.$this = t0;
+      this.clause = t1;
+    },
+    _EvaluateVisitor_visitIfRule___closure: function _EvaluateVisitor_visitIfRule___closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport_closure: function _EvaluateVisitor__visitDynamicImport_closure(t0, t1) {
+      this.$this = t0;
+      this.$import = t1;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure: function _EvaluateVisitor__visitDynamicImport__closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure0: function _EvaluateVisitor__visitDynamicImport__closure0() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure1: function _EvaluateVisitor__visitDynamicImport__closure1() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure2: function _EvaluateVisitor__visitDynamicImport__closure2(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.loadsUserDefinedModules = t2;
+      _.environment = t3;
+      _.children = t4;
+    },
+    _EvaluateVisitor__applyMixin_closure: function _EvaluateVisitor__applyMixin_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure0: function _EvaluateVisitor__applyMixin__closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin_closure0: function _EvaluateVisitor__applyMixin_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.contentCallable = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure: function _EvaluateVisitor__applyMixin__closure(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin___closure: function _EvaluateVisitor__applyMixin___closure(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin____closure: function _EvaluateVisitor__applyMixin____closure(t0, t1) {
+      this.$this = t0;
+      this.statement = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure: function _EvaluateVisitor_visitIncludeRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure0: function _EvaluateVisitor_visitIncludeRule_closure0(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure1: function _EvaluateVisitor_visitIncludeRule_closure1(t0) {
+      this.node = t0;
+    },
+    _EvaluateVisitor_visitMediaRule_closure: function _EvaluateVisitor_visitMediaRule_closure(t0, t1) {
+      this.$this = t0;
+      this.queries = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure0: function _EvaluateVisitor_visitMediaRule_closure0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.queries = t2;
+      _.mergedSources = t3;
+      _.node = t4;
+    },
+    _EvaluateVisitor_visitMediaRule__closure: function _EvaluateVisitor_visitMediaRule__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule___closure: function _EvaluateVisitor_visitMediaRule___closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure1: function _EvaluateVisitor_visitMediaRule_closure1(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitStyleRule_closure: function _EvaluateVisitor_visitStyleRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure0: function _EvaluateVisitor_visitStyleRule_closure0() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure2: function _EvaluateVisitor_visitStyleRule_closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitStyleRule__closure: function _EvaluateVisitor_visitStyleRule__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure1: function _EvaluateVisitor_visitStyleRule_closure1() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure3: function _EvaluateVisitor_visitStyleRule_closure3() {
+    },
+    _EvaluateVisitor_visitSupportsRule_closure: function _EvaluateVisitor_visitSupportsRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule__closure: function _EvaluateVisitor_visitSupportsRule__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule_closure0: function _EvaluateVisitor_visitSupportsRule_closure0() {
+    },
+    _EvaluateVisitor__visitSupportsCondition_closure: function _EvaluateVisitor__visitSupportsCondition_closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure: function _EvaluateVisitor_visitVariableDeclaration_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure0: function _EvaluateVisitor_visitVariableDeclaration_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure1: function _EvaluateVisitor_visitVariableDeclaration_closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.value = t2;
+    },
+    _EvaluateVisitor_visitUseRule_closure: function _EvaluateVisitor_visitUseRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWarnRule_closure: function _EvaluateVisitor_visitWarnRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule_closure: function _EvaluateVisitor_visitWhileRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule__closure: function _EvaluateVisitor_visitWhileRule__closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitBinaryOperationExpression_closure: function _EvaluateVisitor_visitBinaryOperationExpression_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__slash_recommendation: function _EvaluateVisitor__slash_recommendation() {
+    },
+    _EvaluateVisitor_visitVariableExpression_closure: function _EvaluateVisitor_visitVariableExpression_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitUnaryOperationExpression_closure: function _EvaluateVisitor_visitUnaryOperationExpression_closure(t0, t1) {
+      this.node = t0;
+      this.operand = t1;
+    },
+    _EvaluateVisitor_visitListExpression_closure: function _EvaluateVisitor_visitListExpression_closure(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure: function _EvaluateVisitor_visitFunctionExpression_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure0: function _EvaluateVisitor_visitFunctionExpression_closure0() {
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure1: function _EvaluateVisitor_visitFunctionExpression_closure1(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__checkCalculationArguments_check: function _EvaluateVisitor__checkCalculationArguments_check(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__visitCalculationExpression_closure: function _EvaluateVisitor__visitCalculationExpression_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.inLegacySassFunction = t3;
+    },
+    _EvaluateVisitor_visitInterpolatedFunctionExpression_closure: function _EvaluateVisitor_visitInterpolatedFunctionExpression_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.$function = t2;
+    },
+    _EvaluateVisitor__runUserDefinedCallable_closure: function _EvaluateVisitor__runUserDefinedCallable_closure(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.callable = t1;
+      _.evaluated = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable__closure: function _EvaluateVisitor__runUserDefinedCallable__closure(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable___closure: function _EvaluateVisitor__runUserDefinedCallable___closure(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable____closure: function _EvaluateVisitor__runUserDefinedCallable____closure() {
+    },
+    _EvaluateVisitor__runFunctionCallable_closure: function _EvaluateVisitor__runFunctionCallable_closure(t0, t1) {
+      this.$this = t0;
+      this.callable = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure: function _EvaluateVisitor__runBuiltInCallable_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+      this.namedSet = t2;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure0: function _EvaluateVisitor__runBuiltInCallable_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure1: function _EvaluateVisitor__runBuiltInCallable_closure1() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure: function _EvaluateVisitor__evaluateArguments_closure() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure0: function _EvaluateVisitor__evaluateArguments_closure0(t0, t1) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+    },
+    _EvaluateVisitor__evaluateArguments_closure1: function _EvaluateVisitor__evaluateArguments_closure1(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.namedNodes = t3;
+    },
+    _EvaluateVisitor__evaluateArguments_closure2: function _EvaluateVisitor__evaluateArguments_closure2() {
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure: function _EvaluateVisitor__evaluateMacroArguments_closure(t0) {
+      this.restArgs = t0;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure0: function _EvaluateVisitor__evaluateMacroArguments_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+      this.restArgs = t2;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure1: function _EvaluateVisitor__evaluateMacroArguments_closure1(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.restArgs = t3;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure2: function _EvaluateVisitor__evaluateMacroArguments_closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.keywordRestNodeForSpan = t1;
+      this.keywordRestArgs = t2;
+    },
+    _EvaluateVisitor__addRestMap_closure: function _EvaluateVisitor__addRestMap_closure(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.values = t1;
+      _.convert = t2;
+      _.expressionNode = t3;
+      _.map = t4;
+      _.nodeWithSpan = t5;
+    },
+    _EvaluateVisitor__verifyArguments_closure: function _EvaluateVisitor__verifyArguments_closure(t0, t1, t2) {
+      this.$arguments = t0;
+      this.positional = t1;
+      this.named = t2;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure: function _EvaluateVisitor_visitCssAtRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure0: function _EvaluateVisitor_visitCssAtRule_closure0() {
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure: function _EvaluateVisitor_visitCssKeyframeBlock_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure0: function _EvaluateVisitor_visitCssKeyframeBlock_closure0() {
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure: function _EvaluateVisitor_visitCssMediaRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure0: function _EvaluateVisitor_visitCssMediaRule_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.node = t2;
+      _.mergedSources = t3;
+    },
+    _EvaluateVisitor_visitCssMediaRule__closure: function _EvaluateVisitor_visitCssMediaRule__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule___closure: function _EvaluateVisitor_visitCssMediaRule___closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure1: function _EvaluateVisitor_visitCssMediaRule_closure1(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure0: function _EvaluateVisitor_visitCssStyleRule_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitCssStyleRule__closure: function _EvaluateVisitor_visitCssStyleRule__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure: function _EvaluateVisitor_visitCssStyleRule_closure() {
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure: function _EvaluateVisitor_visitCssSupportsRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule__closure: function _EvaluateVisitor_visitCssSupportsRule__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure0: function _EvaluateVisitor_visitCssSupportsRule_closure0() {
+    },
+    _EvaluateVisitor__performInterpolationHelper_closure: function _EvaluateVisitor__performInterpolationHelper_closure(t0) {
+      this.interpolation = t0;
+    },
+    _EvaluateVisitor__serialize_closure: function _EvaluateVisitor__serialize_closure(t0, t1) {
+      this.value = t0;
+      this.quote = t1;
+    },
+    _EvaluateVisitor__expressionNode_closure: function _EvaluateVisitor__expressionNode_closure(t0, t1) {
+      this.$this = t0;
+      this.expression = t1;
+    },
+    _EvaluateVisitor__withoutSlash_recommendation: function _EvaluateVisitor__withoutSlash_recommendation() {
+    },
+    _EvaluateVisitor__stackFrame_closure: function _EvaluateVisitor__stackFrame_closure(t0) {
+      this.$this = t0;
+    },
+    _ImportedCssVisitor: function _ImportedCssVisitor(t0) {
+      this._visitor = t0;
+    },
+    _ImportedCssVisitor_visitCssAtRule_closure: function _ImportedCssVisitor_visitCssAtRule_closure() {
+    },
+    _ImportedCssVisitor_visitCssMediaRule_closure: function _ImportedCssVisitor_visitCssMediaRule_closure(t0) {
+      this.hasBeenMerged = t0;
+    },
+    _ImportedCssVisitor_visitCssStyleRule_closure: function _ImportedCssVisitor_visitCssStyleRule_closure() {
+    },
+    _ImportedCssVisitor_visitCssSupportsRule_closure: function _ImportedCssVisitor_visitCssSupportsRule_closure() {
+    },
+    _EvaluationContext: function _EvaluationContext(t0, t1) {
+      this._visitor = t0;
+      this._defaultWarnNodeWithSpan = t1;
+    },
+    EveryCssVisitor: function EveryCssVisitor() {
+    },
+    EveryCssVisitor_visitCssAtRule_closure: function EveryCssVisitor_visitCssAtRule_closure(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssKeyframeBlock_closure: function EveryCssVisitor_visitCssKeyframeBlock_closure(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssMediaRule_closure: function EveryCssVisitor_visitCssMediaRule_closure(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssStyleRule_closure: function EveryCssVisitor_visitCssStyleRule_closure(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssStylesheet_closure: function EveryCssVisitor_visitCssStylesheet_closure(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssSupportsRule_closure: function EveryCssVisitor_visitCssSupportsRule_closure(t0) {
+      this.$this = t0;
+    },
+    expressionToCalc(expression) {
+      var t4,
+        t1 = A._setArrayType([B.C__MakeExpressionCalculationSafe.visitBinaryOperationExpression$1(expression)], type$.JSArray_Expression),
+        t2 = expression.get$span(0),
+        t3 = type$.Expression;
+      t1 = A.List_List$unmodifiable(t1, t3);
+      t3 = A.ConstantMap_ConstantMap$from(B.Map_empty6, type$.String, t3);
+      t4 = expression.get$span(0);
+      return new A.FunctionExpression(null, A.stringReplaceAllUnchecked("calc", "_", "-"), "calc", new A.ArgumentInvocation(t1, t3, null, null, t2), t4);
+    },
+    _MakeExpressionCalculationSafe: function _MakeExpressionCalculationSafe() {
+    },
+    __MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor: function __MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor() {
+    },
+    _FindDependenciesVisitor: function _FindDependenciesVisitor(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._find_dependencies$_uses = t0;
+      _._find_dependencies$_forwards = t1;
+      _._metaLoadCss = t2;
+      _._imports = t3;
+      _._metaNamespaces = t4;
+    },
+    DependencyReport: function DependencyReport(t0, t1, t2, t3) {
+      var _ = this;
+      _.uses = t0;
+      _.forwards = t1;
+      _.metaLoadCss = t2;
+      _.imports = t3;
+    },
+    __FindDependenciesVisitor_Object_RecursiveStatementVisitor: function __FindDependenciesVisitor_Object_RecursiveStatementVisitor() {
+    },
+    RecursiveStatementVisitor: function RecursiveStatementVisitor() {
+    },
+    ReplaceExpressionVisitor: function ReplaceExpressionVisitor() {
+    },
+    ReplaceExpressionVisitor_visitListExpression_closure: function ReplaceExpressionVisitor_visitListExpression_closure(t0) {
+      this.$this = t0;
+    },
+    ReplaceExpressionVisitor_visitArgumentInvocation_closure: function ReplaceExpressionVisitor_visitArgumentInvocation_closure(t0) {
+      this.$this = t0;
+    },
+    ReplaceExpressionVisitor_visitInterpolation_closure: function ReplaceExpressionVisitor_visitInterpolation_closure(t0) {
+      this.$this = t0;
+    },
+    SelectorSearchVisitor: function SelectorSearchVisitor() {
+    },
+    SelectorSearchVisitor_visitComplexSelector_closure: function SelectorSearchVisitor_visitComplexSelector_closure(t0) {
+      this.$this = t0;
+    },
+    SelectorSearchVisitor_visitCompoundSelector_closure: function SelectorSearchVisitor_visitCompoundSelector_closure(t0) {
+      this.$this = t0;
+    },
+    serialize(node, charset, indentWidth, inspect, lineFeed, sourceMap, style, useSpaces) {
+      var t1, css, t2, prefix,
+        visitor = A._SerializeVisitor$(2, inspect, lineFeed, true, sourceMap, style, true);
+      node.accept$1(visitor);
+      t1 = visitor._serialize$_buffer;
+      css = t1.toString$0(0);
+      if (charset) {
+        t2 = new A.CodeUnits(css);
+        t2 = t2.any$1(t2, new A.serialize_closure());
+      } else
+        t2 = false;
+      if (t2)
+        prefix = style === B.OutputStyle_1 ? "\ufeff" : '@charset "UTF-8";\n';
+      else
+        prefix = "";
+      t1 = sourceMap ? t1.buildSourceMap$1$prefix(prefix) : null;
+      return new A._Record_2_sourceMap(prefix + css, t1);
+    },
+    serializeValue(value, inspect, quote) {
+      var visitor = A._SerializeVisitor$(null, inspect, null, quote, false, null, true);
+      value.accept$1(visitor);
+      return visitor._serialize$_buffer.toString$0(0);
+    },
+    serializeSelector(selector, inspect) {
+      var visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+      selector.accept$1(visitor);
+      return visitor._serialize$_buffer.toString$0(0);
+    },
+    _SerializeVisitor$(indentWidth, inspect, lineFeed, quote, sourceMap, style, useSpaces) {
+      var t1 = sourceMap ? new A.SourceMapBuffer(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Entry)) : new A.NoSourceMapBuffer(new A.StringBuffer("")),
+        t2 = style == null ? B.OutputStyle_0 : style,
+        t3 = indentWidth == null ? 2 : indentWidth;
+      A.RangeError_checkValueInInterval(t3, 0, 10, "indentWidth");
+      return new A._SerializeVisitor(t1, t2, inspect, quote, 32, t3, B.LineFeed_lf);
+    },
+    serialize_closure: function serialize_closure() {
+    },
+    _SerializeVisitor: function _SerializeVisitor(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._serialize$_buffer = t0;
+      _._indentation = 0;
+      _._style = t1;
+      _._inspect = t2;
+      _._quote = t3;
+      _._indentCharacter = t4;
+      _._indentWidth = t5;
+      _._serialize$_lineFeed = t6;
+    },
+    _SerializeVisitor_visitCssComment_closure: function _SerializeVisitor_visitCssComment_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssAtRule_closure: function _SerializeVisitor_visitCssAtRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssMediaRule_closure: function _SerializeVisitor_visitCssMediaRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssImport_closure: function _SerializeVisitor_visitCssImport_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssImport__closure: function _SerializeVisitor_visitCssImport__closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssKeyframeBlock_closure: function _SerializeVisitor_visitCssKeyframeBlock_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssStyleRule_closure: function _SerializeVisitor_visitCssStyleRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssSupportsRule_closure: function _SerializeVisitor_visitCssSupportsRule_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssDeclaration_closure: function _SerializeVisitor_visitCssDeclaration_closure(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssDeclaration_closure0: function _SerializeVisitor_visitCssDeclaration_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitList_closure: function _SerializeVisitor_visitList_closure() {
+    },
+    _SerializeVisitor_visitList_closure0: function _SerializeVisitor_visitList_closure0(t0, t1) {
+      this.$this = t0;
+      this.value = t1;
+    },
+    _SerializeVisitor_visitList_closure1: function _SerializeVisitor_visitList_closure1(t0) {
+      this.$this = t0;
+    },
+    _SerializeVisitor_visitMap_closure: function _SerializeVisitor_visitMap_closure(t0) {
+      this.$this = t0;
+    },
+    _SerializeVisitor_visitSelectorList_closure: function _SerializeVisitor_visitSelectorList_closure() {
+    },
+    _SerializeVisitor__write_closure: function _SerializeVisitor__write_closure(t0, t1) {
+      this.$this = t0;
+      this.value = t1;
+    },
+    _SerializeVisitor__visitChildren_closure: function _SerializeVisitor__visitChildren_closure(t0, t1) {
+      this.$this = t0;
+      this.child = t1;
+    },
+    _SerializeVisitor__visitChildren_closure0: function _SerializeVisitor__visitChildren_closure0(t0, t1) {
+      this.$this = t0;
+      this.child = t1;
+    },
+    OutputStyle: function OutputStyle(t0) {
+      this._name = t0;
+    },
+    LineFeed: function LineFeed(t0) {
+      this._name = t0;
+    },
+    StatementSearchVisitor: function StatementSearchVisitor() {
+    },
+    StatementSearchVisitor_visitIfRule_closure: function StatementSearchVisitor_visitIfRule_closure(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitIfRule__closure0: function StatementSearchVisitor_visitIfRule__closure0(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitIfRule_closure0: function StatementSearchVisitor_visitIfRule_closure0(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitIfRule__closure: function StatementSearchVisitor_visitIfRule__closure(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitChildren_closure: function StatementSearchVisitor_visitChildren_closure(t0) {
+      this.$this = t0;
+    },
+    Entry: function Entry(t0, t1, t2) {
+      this.source = t0;
+      this.target = t1;
+      this.identifierName = t2;
+    },
+    SingleMapping_SingleMapping$fromEntries(entries) {
+      var lines, t1, t2, urls, names, files, targetEntries, t3, lineNum, _i, sourceEntry, t4, t5, sourceUrl, t6, urlId,
+        sourceEntries = J.toList$0$ax(entries);
+      B.JSArray_methods.sort$0(sourceEntries);
+      lines = A._setArrayType([], type$.JSArray_TargetLineEntry);
+      t1 = type$.String;
+      t2 = type$.int;
+      urls = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      names = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      files = A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.SourceFile);
+      targetEntries = A._Cell$();
+      for (t2 = sourceEntries.length, t3 = type$.JSArray_TargetEntry, lineNum = null, _i = 0; _i < sourceEntries.length; sourceEntries.length === t2 || (0, A.throwConcurrentModificationError)(sourceEntries), ++_i) {
+        sourceEntry = sourceEntries[_i];
+        if (lineNum == null || sourceEntry.target.line > lineNum) {
+          lineNum = sourceEntry.target.line;
+          t4 = A._setArrayType([], t3);
+          targetEntries.__late_helper$_value = t4;
+          lines.push(new A.TargetLineEntry(lineNum, t4));
+        }
+        t4 = sourceEntry.source;
+        t5 = t4.file;
+        sourceUrl = t5.url;
+        t6 = sourceUrl == null ? "" : sourceUrl.toString$0(0);
+        urlId = urls.putIfAbsent$2(t6, new A.SingleMapping_SingleMapping$fromEntries_closure(urls));
+        files.putIfAbsent$2(urlId, new A.SingleMapping_SingleMapping$fromEntries_closure0(sourceEntry));
+        t6 = targetEntries.__late_helper$_value;
+        if (t6 === targetEntries)
+          A.throwExpression(A.LateError$localNI(""));
+        t4 = t4.offset;
+        J.add$1$ax(t6, new A.TargetEntry(sourceEntry.target.column, urlId, t5.getLine$1(t4), t5.getColumn$1(t4), null));
+      }
+      t2 = urls.get$values(0);
+      t2 = A.MappedIterable_MappedIterable(t2, new A.SingleMapping_SingleMapping$fromEntries_closure1(files), A._instanceType(t2)._eval$1("Iterable.E"), type$.nullable_SourceFile);
+      t2 = A.List_List$of(t2, true, A._instanceType(t2)._eval$1("Iterable.E"));
+      t3 = urls.$ti._eval$1("LinkedHashMapKeyIterable<1>");
+      t4 = names.$ti._eval$1("LinkedHashMapKeyIterable<1>");
+      return new A.SingleMapping(A.List_List$of(new A.LinkedHashMapKeyIterable(urls, t3), true, t3._eval$1("Iterable.E")), A.List_List$of(new A.LinkedHashMapKeyIterable(names, t4), true, t4._eval$1("Iterable.E")), t2, lines, null, A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.dynamic));
+    },
+    Mapping: function Mapping() {
+    },
+    SingleMapping: function SingleMapping(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.urls = t0;
+      _.names = t1;
+      _.files = t2;
+      _.lines = t3;
+      _.targetUrl = t4;
+      _.sourceRoot = null;
+      _.extensions = t5;
+    },
+    SingleMapping_SingleMapping$fromEntries_closure: function SingleMapping_SingleMapping$fromEntries_closure(t0) {
+      this.urls = t0;
+    },
+    SingleMapping_SingleMapping$fromEntries_closure0: function SingleMapping_SingleMapping$fromEntries_closure0(t0) {
+      this.sourceEntry = t0;
+    },
+    SingleMapping_SingleMapping$fromEntries_closure1: function SingleMapping_SingleMapping$fromEntries_closure1(t0) {
+      this.files = t0;
+    },
+    SingleMapping_toJson_closure: function SingleMapping_toJson_closure() {
+    },
+    SingleMapping_toJson_closure0: function SingleMapping_toJson_closure0(t0) {
+      this.result = t0;
+    },
+    TargetLineEntry: function TargetLineEntry(t0, t1) {
+      this.line = t0;
+      this.entries = t1;
+    },
+    TargetEntry: function TargetEntry(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.column = t0;
+      _.sourceUrlId = t1;
+      _.sourceLine = t2;
+      _.sourceColumn = t3;
+      _.sourceNameId = t4;
+    },
+    SourceFile$fromString(text, url) {
+      var t1 = new A.CodeUnits(text),
+        t2 = A._setArrayType([0], type$.JSArray_int),
+        t3 = typeof url == "string" ? A.Uri_parse(url) : type$.nullable_Uri._as(url);
+      t2 = new A.SourceFile(t3, t2, new Uint32Array(A._ensureNativeList(t1.toList$0(t1))));
+      t2.SourceFile$decoded$2$url(t1, url);
+      return t2;
+    },
+    SourceFile$decoded(decodedChars, url) {
+      var t1 = A._setArrayType([0], type$.JSArray_int),
+        t2 = typeof url == "string" ? A.Uri_parse(url) : type$.nullable_Uri._as(url);
+      t1 = new A.SourceFile(t2, t1, new Uint32Array(A._ensureNativeList(J.toList$0$ax(decodedChars))));
+      t1.SourceFile$decoded$2$url(decodedChars, url);
+      return t1;
+    },
+    FileLocation$_(file, offset) {
+      if (offset < 0)
+        A.throwExpression(A.RangeError$("Offset may not be negative, was " + offset + "."));
+      else if (offset > file._decodedChars.length)
+        A.throwExpression(A.RangeError$("Offset " + offset + string$.x20must_n + file.get$length(0) + "."));
+      return new A.FileLocation(file, offset);
+    },
+    _FileSpan$(file, _start, _end) {
+      if (_end < _start)
+        A.throwExpression(A.ArgumentError$("End " + _end + " must come after start " + _start + ".", null));
+      else if (_end > file._decodedChars.length)
+        A.throwExpression(A.RangeError$("End " + _end + string$.x20must_n + file.get$length(0) + "."));
+      else if (_start < 0)
+        A.throwExpression(A.RangeError$("Start may not be negative, was " + _start + "."));
+      return new A._FileSpan(file, _start, _end);
+    },
+    FileSpanExtension_subspan(_this, start, end) {
+      var t1, startOffset, t2;
+      A.RangeError_checkValidRange(start, end, _this.get$length(_this));
+      if (start === 0)
+        t1 = end == null || end === _this.get$length(_this);
+      else
+        t1 = false;
+      if (t1)
+        return _this;
+      startOffset = _this.get$start(_this).offset;
+      t1 = _this.get$file(_this);
+      t2 = end == null ? _this.get$end(_this).offset : startOffset + end;
+      return t1.span$2(0, startOffset + start, t2);
+    },
+    SourceFile: function SourceFile(t0, t1, t2) {
+      var _ = this;
+      _.url = t0;
+      _._lineStarts = t1;
+      _._decodedChars = t2;
+      _._cachedLine = null;
+    },
+    FileLocation: function FileLocation(t0, t1) {
+      this.file = t0;
+      this.offset = t1;
+    },
+    _FileSpan: function _FileSpan(t0, t1, t2) {
+      this.file = t0;
+      this._file$_start = t1;
+      this._end = t2;
+    },
+    Highlighter$(span, color) {
+      var t1 = A.Highlighter__collateLines(A._setArrayType([A._Highlight$(span, null, true)], type$.JSArray__Highlight)),
+        t2 = new A.Highlighter_closure(color).call$0(),
+        t3 = B.JSInt_methods.toString$0(B.JSArray_methods.get$last(t1).number + 1),
+        t4 = A.Highlighter__contiguous(t1) ? 0 : 3,
+        t5 = A._arrayInstanceType(t1);
+      return new A.Highlighter(t1, t2, null, 1 + Math.max(t3.length, t4), new A.MappedListIterable(t1, new A.Highlighter$__closure(), t5._eval$1("MappedListIterable<1,int>")).reduce$1(0, B.CONSTANT), !A.isAllTheSame(new A.MappedListIterable(t1, new A.Highlighter$__closure0(), t5._eval$1("MappedListIterable<1,Object?>"))), new A.StringBuffer(""));
+    },
+    Highlighter$multiple(primarySpan, primaryLabel, secondarySpans, color, primaryColor, secondaryColor) {
+      var t2, t3, t4, t5, t6,
+        t1 = A._setArrayType([A._Highlight$(primarySpan, primaryLabel, true)], type$.JSArray__Highlight);
+      for (t2 = secondarySpans.get$entries(secondarySpans), t2 = t2.get$iterator(t2); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push(A._Highlight$(t3.key, t3.value, false));
+      }
+      t1 = A.Highlighter__collateLines(t1);
+      if (color)
+        t2 = primaryColor == null ? "\x1b[31m" : primaryColor;
+      else
+        t2 = null;
+      if (color)
+        t3 = "\x1b[34m";
+      else
+        t3 = null;
+      t4 = B.JSInt_methods.toString$0(B.JSArray_methods.get$last(t1).number + 1);
+      t5 = A.Highlighter__contiguous(t1) ? 0 : 3;
+      t6 = A._arrayInstanceType(t1);
+      return new A.Highlighter(t1, t2, t3, 1 + Math.max(t4.length, t5), new A.MappedListIterable(t1, new A.Highlighter$__closure(), t6._eval$1("MappedListIterable<1,int>")).reduce$1(0, B.CONSTANT), !A.isAllTheSame(new A.MappedListIterable(t1, new A.Highlighter$__closure0(), t6._eval$1("MappedListIterable<1,Object?>"))), new A.StringBuffer(""));
+    },
+    Highlighter__contiguous(lines) {
+      var i, thisLine, nextLine;
+      for (i = 0; i < lines.length - 1;) {
+        thisLine = lines[i];
+        ++i;
+        nextLine = lines[i];
+        if (thisLine.number + 1 !== nextLine.number && J.$eq$(thisLine.url, nextLine.url))
+          return false;
+      }
+      return true;
+    },
+    Highlighter__collateLines(highlights) {
+      var t1, t2, t3,
+        highlightsByUrl = A.groupBy(highlights, new A.Highlighter__collateLines_closure(), type$._Highlight, type$.Object);
+      for (t1 = highlightsByUrl.get$values(0), t2 = A._instanceType(t1), t2 = t2._eval$1("@<1>")._bind$1(t2._rest[1]), t1 = new A.MappedIterator(J.get$iterator$ax(t1.__internal$_iterable), t1._f, t2._eval$1("MappedIterator<1,2>")), t2 = t2._rest[1]; t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        J.sort$1$ax(t3, new A.Highlighter__collateLines_closure0());
+      }
+      t1 = highlightsByUrl.get$entries(0);
+      t2 = A._instanceType(t1)._eval$1("ExpandIterable<Iterable.E,_Line>");
+      return A.List_List$of(new A.ExpandIterable(t1, new A.Highlighter__collateLines_closure1(), t2), true, t2._eval$1("Iterable.E"));
+    },
+    _Highlight$(span, label, primary) {
+      var t2,
+        t1 = new A._Highlight_closure(span).call$0();
+      if (label == null)
+        t2 = null;
+      else
+        t2 = A.stringReplaceAllUnchecked(label, "\r\n", "\n");
+      return new A._Highlight(t1, primary, t2);
+    },
+    _Highlight__normalizeNewlines(span) {
+      var endOffset, t1, i, t2, t3, t4,
+        text = span.get$text();
+      if (!B.JSString_methods.contains$1(text, "\r\n"))
+        return span;
+      endOffset = span.get$end(span).get$offset();
+      for (t1 = text.length - 1, i = 0; i < t1; ++i)
+        if (text.charCodeAt(i) === 13 && text.charCodeAt(i + 1) === 10)
+          --endOffset;
+      t1 = span.get$start(span);
+      t2 = span.get$sourceUrl(span);
+      t3 = span.get$end(span).get$line();
+      t2 = A.SourceLocation$(endOffset, span.get$end(span).get$column(), t3, t2);
+      t3 = A.stringReplaceAllUnchecked(text, "\r\n", "\n");
+      t4 = span.get$context(span);
+      return A.SourceSpanWithContext$(t1, t2, t3, A.stringReplaceAllUnchecked(t4, "\r\n", "\n"));
+    },
+    _Highlight__normalizeTrailingNewline(span) {
+      var context, text, start, end, t1, t2, t3;
+      if (!B.JSString_methods.endsWith$1(span.get$context(span), "\n"))
+        return span;
+      if (B.JSString_methods.endsWith$1(span.get$text(), "\n\n"))
+        return span;
+      context = B.JSString_methods.substring$2(span.get$context(span), 0, span.get$context(span).length - 1);
+      text = span.get$text();
+      start = span.get$start(span);
+      end = span.get$end(span);
+      if (B.JSString_methods.endsWith$1(span.get$text(), "\n")) {
+        t1 = A.findLineStart(span.get$context(span), span.get$text(), span.get$start(span).get$column());
+        t1.toString;
+        t1 = t1 + span.get$start(span).get$column() + span.get$length(span) === span.get$context(span).length;
+      } else
+        t1 = false;
+      if (t1) {
+        text = B.JSString_methods.substring$2(span.get$text(), 0, span.get$text().length - 1);
+        if (text.length === 0)
+          end = start;
+        else {
+          t1 = span.get$end(span).get$offset();
+          t2 = span.get$sourceUrl(span);
+          t3 = span.get$end(span).get$line();
+          end = A.SourceLocation$(t1 - 1, A._Highlight__lastLineLength(context), t3 - 1, t2);
+          start = span.get$start(span).get$offset() === span.get$end(span).get$offset() ? end : span.get$start(span);
+        }
+      }
+      return A.SourceSpanWithContext$(start, end, text, context);
+    },
+    _Highlight__normalizeEndOfLine(span) {
+      var text, t1, t2, t3, t4;
+      if (span.get$end(span).get$column() !== 0)
+        return span;
+      if (span.get$end(span).get$line() === span.get$start(span).get$line())
+        return span;
+      text = B.JSString_methods.substring$2(span.get$text(), 0, span.get$text().length - 1);
+      t1 = span.get$start(span);
+      t2 = span.get$end(span).get$offset();
+      t3 = span.get$sourceUrl(span);
+      t4 = span.get$end(span).get$line();
+      t3 = A.SourceLocation$(t2 - 1, text.length - B.JSString_methods.lastIndexOf$1(text, "\n") - 1, t4 - 1, t3);
+      return A.SourceSpanWithContext$(t1, t3, text, B.JSString_methods.endsWith$1(span.get$context(span), "\n") ? B.JSString_methods.substring$2(span.get$context(span), 0, span.get$context(span).length - 1) : span.get$context(span));
+    },
+    _Highlight__lastLineLength(text) {
+      var t1 = text.length;
+      if (t1 === 0)
+        return 0;
+      else if (text.charCodeAt(t1 - 1) === 10)
+        return t1 === 1 ? 0 : t1 - B.JSString_methods.lastIndexOf$2(text, "\n", t1 - 2) - 1;
+      else
+        return t1 - B.JSString_methods.lastIndexOf$1(text, "\n") - 1;
+    },
+    Highlighter: function Highlighter(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._lines = t0;
+      _._primaryColor = t1;
+      _._secondaryColor = t2;
+      _._paddingBeforeSidebar = t3;
+      _._maxMultilineSpans = t4;
+      _._multipleFiles = t5;
+      _._highlighter$_buffer = t6;
+    },
+    Highlighter_closure: function Highlighter_closure(t0) {
+      this.color = t0;
+    },
+    Highlighter$__closure: function Highlighter$__closure() {
+    },
+    Highlighter$___closure: function Highlighter$___closure() {
+    },
+    Highlighter$__closure0: function Highlighter$__closure0() {
+    },
+    Highlighter__collateLines_closure: function Highlighter__collateLines_closure() {
+    },
+    Highlighter__collateLines_closure0: function Highlighter__collateLines_closure0() {
+    },
+    Highlighter__collateLines_closure1: function Highlighter__collateLines_closure1() {
+    },
+    Highlighter__collateLines__closure: function Highlighter__collateLines__closure(t0) {
+      this.line = t0;
+    },
+    Highlighter_highlight_closure: function Highlighter_highlight_closure() {
+    },
+    Highlighter__writeFileStart_closure: function Highlighter__writeFileStart_closure(t0) {
+      this.$this = t0;
+    },
+    Highlighter__writeMultilineHighlights_closure: function Highlighter__writeMultilineHighlights_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.startLine = t1;
+      this.line = t2;
+    },
+    Highlighter__writeMultilineHighlights_closure0: function Highlighter__writeMultilineHighlights_closure0(t0, t1) {
+      this.$this = t0;
+      this.highlight = t1;
+    },
+    Highlighter__writeMultilineHighlights_closure1: function Highlighter__writeMultilineHighlights_closure1(t0) {
+      this.$this = t0;
+    },
+    Highlighter__writeMultilineHighlights_closure2: function Highlighter__writeMultilineHighlights_closure2(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.current = t2;
+      _.startLine = t3;
+      _.line = t4;
+      _.highlight = t5;
+      _.endLine = t6;
+    },
+    Highlighter__writeMultilineHighlights__closure: function Highlighter__writeMultilineHighlights__closure(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    Highlighter__writeMultilineHighlights__closure0: function Highlighter__writeMultilineHighlights__closure0(t0, t1) {
+      this.$this = t0;
+      this.vertical = t1;
+    },
+    Highlighter__writeHighlightedText_closure: function Highlighter__writeHighlightedText_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.text = t1;
+      _.startColumn = t2;
+      _.endColumn = t3;
+    },
+    Highlighter__writeIndicator_closure: function Highlighter__writeIndicator_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.line = t1;
+      this.highlight = t2;
+    },
+    Highlighter__writeIndicator_closure0: function Highlighter__writeIndicator_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.line = t1;
+      this.highlight = t2;
+    },
+    Highlighter__writeIndicator_closure1: function Highlighter__writeIndicator_closure1(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.coversWholeLine = t1;
+      _.line = t2;
+      _.highlight = t3;
+    },
+    Highlighter__writeLabel_closure: function Highlighter__writeLabel_closure(t0, t1) {
+      this.$this = t0;
+      this.lines = t1;
+    },
+    Highlighter__writeLabel_closure0: function Highlighter__writeLabel_closure0(t0, t1) {
+      this.$this = t0;
+      this.text = t1;
+    },
+    Highlighter__writeSidebar_closure: function Highlighter__writeSidebar_closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.end = t2;
+    },
+    _Highlight: function _Highlight(t0, t1, t2) {
+      this.span = t0;
+      this.isPrimary = t1;
+      this.label = t2;
+    },
+    _Highlight_closure: function _Highlight_closure(t0) {
+      this.span = t0;
+    },
+    _Line: function _Line(t0, t1, t2, t3) {
+      var _ = this;
+      _.text = t0;
+      _.number = t1;
+      _.url = t2;
+      _.highlights = t3;
+    },
+    SourceLocation$(offset, column, line, sourceUrl) {
+      var t1 = line == null,
+        t2 = t1 ? 0 : line,
+        t3 = column == null,
+        t4 = t3 ? offset : column;
+      if (offset < 0)
+        A.throwExpression(A.RangeError$("Offset may not be negative, was " + offset + "."));
+      else if (!t1 && line < 0)
+        A.throwExpression(A.RangeError$("Line may not be negative, was " + A.S(line) + "."));
+      else if (!t3 && column < 0)
+        A.throwExpression(A.RangeError$("Column may not be negative, was " + A.S(column) + "."));
+      return new A.SourceLocation(sourceUrl, offset, t2, t4);
+    },
+    SourceLocation: function SourceLocation(t0, t1, t2, t3) {
+      var _ = this;
+      _.sourceUrl = t0;
+      _.offset = t1;
+      _.line = t2;
+      _.column = t3;
+    },
+    SourceLocationMixin: function SourceLocationMixin() {
+    },
+    SourceSpanExtension_messageMultiple(_this, message, label, secondarySpans, color, primaryColor, secondaryColor) {
+      var t2, t3,
+        t1 = _this.get$start(_this);
+      t1 = t1.file.getLine$1(t1.offset);
+      t2 = _this.get$start(_this);
+      t2 = "" + ("line " + (t1 + 1) + ", column " + (t2.file.getColumn$1(t2.offset) + 1));
+      if (_this.get$sourceUrl(_this) != null) {
+        t1 = _this.get$sourceUrl(_this);
+        t3 = $.$get$context();
+        t1.toString;
+        t1 = t2 + (" of " + t3.prettyUri$1(t1));
+      } else
+        t1 = t2;
+      t1 = t1 + (": " + message + "\n") + A.Highlighter$multiple(_this, label, secondarySpans, color, primaryColor, secondaryColor).highlight$0();
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    SourceSpanBase: function SourceSpanBase() {
+    },
+    SourceSpanException: function SourceSpanException() {
+    },
+    SourceSpanFormatException: function SourceSpanFormatException(t0, t1, t2) {
+      this.source = t0;
+      this._span_exception$_message = t1;
+      this._span = t2;
+    },
+    MultiSourceSpanException: function MultiSourceSpanException() {
+    },
+    MultiSourceSpanFormatException: function MultiSourceSpanFormatException(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.source = t0;
+      _.primaryLabel = t1;
+      _.secondarySpans = t2;
+      _._span_exception$_message = t3;
+      _._span = t4;
+    },
+    SourceSpanMixin: function SourceSpanMixin() {
+    },
+    SourceSpanWithContext$(start, end, text, _context) {
+      var t1 = new A.SourceSpanWithContext(_context, start, end, text);
+      t1.SourceSpanBase$3(start, end, text);
+      if (!B.JSString_methods.contains$1(_context, text))
+        A.throwExpression(A.ArgumentError$('The context line "' + _context + '" must contain "' + text + '".', null));
+      if (A.findLineStart(_context, text, start.get$column()) == null)
+        A.throwExpression(A.ArgumentError$('The span text "' + text + '" must start at column ' + (start.get$column() + 1) + ' in a line within "' + _context + '".', null));
+      return t1;
+    },
+    SourceSpanWithContext: function SourceSpanWithContext(t0, t1, t2, t3) {
+      var _ = this;
+      _._context = t0;
+      _.start = t1;
+      _.end = t2;
+      _.text = t3;
+    },
+    Chain_Chain$parse(chain) {
+      var t1, t2,
+        _s51_ = string$.x3d_____;
+      if (chain.length === 0)
+        return new A.Chain(A.List_List$unmodifiable(A._setArrayType([], type$.JSArray_Trace), type$.Trace));
+      t1 = $.$get$vmChainGap();
+      if (B.JSString_methods.contains$1(chain, t1)) {
+        t1 = B.JSString_methods.split$1(chain, t1);
+        t2 = A._arrayInstanceType(t1);
+        return new A.Chain(A.List_List$unmodifiable(new A.MappedIterable(new A.WhereIterable(t1, new A.Chain_Chain$parse_closure(), t2._eval$1("WhereIterable<1>")), A.trace_Trace___parseVM_tearOff$closure(), t2._eval$1("MappedIterable<1,Trace>")), type$.Trace));
+      }
+      if (!B.JSString_methods.contains$1(chain, _s51_))
+        return new A.Chain(A.List_List$unmodifiable(A._setArrayType([A.Trace_Trace$parse(chain)], type$.JSArray_Trace), type$.Trace));
+      return new A.Chain(A.List_List$unmodifiable(new A.MappedListIterable(A._setArrayType(chain.split(_s51_), type$.JSArray_String), A.trace_Trace___parseFriendly_tearOff$closure(), type$.MappedListIterable_String_Trace), type$.Trace));
+    },
+    Chain: function Chain(t0) {
+      this.traces = t0;
+    },
+    Chain_Chain$parse_closure: function Chain_Chain$parse_closure() {
+    },
+    Chain_toTrace_closure: function Chain_toTrace_closure() {
+    },
+    Chain_toString_closure0: function Chain_toString_closure0() {
+    },
+    Chain_toString__closure0: function Chain_toString__closure0() {
+    },
+    Chain_toString_closure: function Chain_toString_closure(t0) {
+      this.longest = t0;
+    },
+    Chain_toString__closure: function Chain_toString__closure(t0) {
+      this.longest = t0;
+    },
+    Frame___parseVM_tearOff(frame) {
+      return A.Frame_Frame$parseVM(frame);
+    },
+    Frame_Frame$parseVM(frame) {
+      return A.Frame__catchFormatException(frame, new A.Frame_Frame$parseVM_closure(frame));
+    },
+    Frame___parseV8_tearOff(frame) {
+      return A.Frame_Frame$parseV8(frame);
+    },
+    Frame_Frame$parseV8(frame) {
+      return A.Frame__catchFormatException(frame, new A.Frame_Frame$parseV8_closure(frame));
+    },
+    Frame_Frame$_parseFirefoxEval(frame) {
+      return A.Frame__catchFormatException(frame, new A.Frame_Frame$_parseFirefoxEval_closure(frame));
+    },
+    Frame___parseFirefox_tearOff(frame) {
+      return A.Frame_Frame$parseFirefox(frame);
+    },
+    Frame_Frame$parseFirefox(frame) {
+      return A.Frame__catchFormatException(frame, new A.Frame_Frame$parseFirefox_closure(frame));
+    },
+    Frame___parseFriendly_tearOff(frame) {
+      return A.Frame_Frame$parseFriendly(frame);
+    },
+    Frame_Frame$parseFriendly(frame) {
+      return A.Frame__catchFormatException(frame, new A.Frame_Frame$parseFriendly_closure(frame));
+    },
+    Frame__uriOrPathToUri(uriOrPath) {
+      if (B.JSString_methods.contains$1(uriOrPath, $.$get$Frame__uriRegExp()))
+        return A.Uri_parse(uriOrPath);
+      else if (B.JSString_methods.contains$1(uriOrPath, $.$get$Frame__windowsRegExp()))
+        return A._Uri__Uri$file(uriOrPath, true);
+      else if (B.JSString_methods.startsWith$1(uriOrPath, "/"))
+        return A._Uri__Uri$file(uriOrPath, false);
+      if (B.JSString_methods.contains$1(uriOrPath, "\\"))
+        return $.$get$windows().toUri$1(uriOrPath);
+      return A.Uri_parse(uriOrPath);
+    },
+    Frame__catchFormatException(text, body) {
+      var t1, exception;
+      try {
+        t1 = body.call$0();
+        return t1;
+      } catch (exception) {
+        if (type$.FormatException._is(A.unwrapException(exception)))
+          return new A.UnparsedFrame(A._Uri__Uri(null, "unparsed", null, null), text);
+        else
+          throw exception;
+      }
+    },
+    Frame: function Frame(t0, t1, t2, t3) {
+      var _ = this;
+      _.uri = t0;
+      _.line = t1;
+      _.column = t2;
+      _.member = t3;
+    },
+    Frame_Frame$parseVM_closure: function Frame_Frame$parseVM_closure(t0) {
+      this.frame = t0;
+    },
+    Frame_Frame$parseV8_closure: function Frame_Frame$parseV8_closure(t0) {
+      this.frame = t0;
+    },
+    Frame_Frame$parseV8_closure_parseLocation: function Frame_Frame$parseV8_closure_parseLocation(t0) {
+      this.frame = t0;
+    },
+    Frame_Frame$_parseFirefoxEval_closure: function Frame_Frame$_parseFirefoxEval_closure(t0) {
+      this.frame = t0;
+    },
+    Frame_Frame$parseFirefox_closure: function Frame_Frame$parseFirefox_closure(t0) {
+      this.frame = t0;
+    },
+    Frame_Frame$parseFriendly_closure: function Frame_Frame$parseFriendly_closure(t0) {
+      this.frame = t0;
+    },
+    LazyTrace: function LazyTrace(t0) {
+      this._thunk = t0;
+      this.__LazyTrace__trace_FI = $;
+    },
+    LazyTrace_terse_closure: function LazyTrace_terse_closure(t0) {
+      this.$this = t0;
+    },
+    Trace_Trace$from(trace) {
+      if (type$.Trace._is(trace))
+        return trace;
+      if (trace instanceof A.Chain)
+        return trace.toTrace$0();
+      return new A.LazyTrace(new A.Trace_Trace$from_closure(trace));
+    },
+    Trace_Trace$parse(trace) {
+      var error, t1, exception;
+      try {
+        if (trace.length === 0) {
+          t1 = A.Trace$(A._setArrayType([], type$.JSArray_Frame), null);
+          return t1;
+        }
+        if (B.JSString_methods.contains$1(trace, $.$get$_v8Trace())) {
+          t1 = A.Trace$parseV8(trace);
+          return t1;
+        }
+        if (B.JSString_methods.contains$1(trace, "\tat ")) {
+          t1 = A.Trace$parseJSCore(trace);
+          return t1;
+        }
+        if (B.JSString_methods.contains$1(trace, $.$get$_firefoxSafariTrace()) || B.JSString_methods.contains$1(trace, $.$get$_firefoxEvalTrace())) {
+          t1 = A.Trace$parseFirefox(trace);
+          return t1;
+        }
+        if (B.JSString_methods.contains$1(trace, string$.x3d_____)) {
+          t1 = A.Chain_Chain$parse(trace).toTrace$0();
+          return t1;
+        }
+        if (B.JSString_methods.contains$1(trace, $.$get$_friendlyTrace())) {
+          t1 = A.Trace$parseFriendly(trace);
+          return t1;
+        }
+        t1 = A.Trace$parseVM(trace);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.FormatException._is(t1)) {
+          error = t1;
+          throw A.wrapException(A.FormatException$(J.get$message$x(error) + "\nStack trace:\n" + trace, null, null));
+        } else
+          throw exception;
+      }
+    },
+    Trace___parseVM_tearOff(trace) {
+      return A.Trace$parseVM(trace);
+    },
+    Trace$parseVM(trace) {
+      var t1 = A.List_List$unmodifiable(A.Trace__parseVM(trace), type$.Frame);
+      return new A.Trace(t1, new A._StringStackTrace(trace));
+    },
+    Trace__parseVM(trace) {
+      var $frames,
+        t1 = B.JSString_methods.trim$0(trace),
+        t2 = $.$get$vmChainGap(),
+        t3 = type$.WhereIterable_String,
+        lines = new A.WhereIterable(A._setArrayType(A.stringReplaceAllUnchecked(t1, t2, "").split("\n"), type$.JSArray_String), new A.Trace__parseVM_closure(), t3);
+      if (!lines.get$iterator(0).moveNext$0())
+        return A._setArrayType([], type$.JSArray_Frame);
+      t1 = A.TakeIterable_TakeIterable(lines, lines.get$length(0) - 1, t3._eval$1("Iterable.E"));
+      t1 = A.MappedIterable_MappedIterable(t1, A.frame_Frame___parseVM_tearOff$closure(), A._instanceType(t1)._eval$1("Iterable.E"), type$.Frame);
+      $frames = A.List_List$of(t1, true, A._instanceType(t1)._eval$1("Iterable.E"));
+      if (!J.endsWith$1$s(lines.get$last(0), ".da"))
+        B.JSArray_methods.add$1($frames, A.Frame_Frame$parseVM(lines.get$last(0)));
+      return $frames;
+    },
+    Trace$parseV8(trace) {
+      var t1 = A.SubListIterable$(A._setArrayType(trace.split("\n"), type$.JSArray_String), 1, null, type$.String).super$Iterable$skipWhile(0, new A.Trace$parseV8_closure()),
+        t2 = type$.Frame;
+      t2 = A.List_List$unmodifiable(A.MappedIterable_MappedIterable(t1, A.frame_Frame___parseV8_tearOff$closure(), t1.$ti._eval$1("Iterable.E"), t2), t2);
+      return new A.Trace(t2, new A._StringStackTrace(trace));
+    },
+    Trace$parseJSCore(trace) {
+      var t1 = A.List_List$unmodifiable(new A.MappedIterable(new A.WhereIterable(A._setArrayType(trace.split("\n"), type$.JSArray_String), new A.Trace$parseJSCore_closure(), type$.WhereIterable_String), A.frame_Frame___parseV8_tearOff$closure(), type$.MappedIterable_String_Frame), type$.Frame);
+      return new A.Trace(t1, new A._StringStackTrace(trace));
+    },
+    Trace$parseFirefox(trace) {
+      var t1 = A.List_List$unmodifiable(new A.MappedIterable(new A.WhereIterable(A._setArrayType(B.JSString_methods.trim$0(trace).split("\n"), type$.JSArray_String), new A.Trace$parseFirefox_closure(), type$.WhereIterable_String), A.frame_Frame___parseFirefox_tearOff$closure(), type$.MappedIterable_String_Frame), type$.Frame);
+      return new A.Trace(t1, new A._StringStackTrace(trace));
+    },
+    Trace___parseFriendly_tearOff(trace) {
+      return A.Trace$parseFriendly(trace);
+    },
+    Trace$parseFriendly(trace) {
+      var t1 = trace.length === 0 ? A._setArrayType([], type$.JSArray_Frame) : new A.MappedIterable(new A.WhereIterable(A._setArrayType(B.JSString_methods.trim$0(trace).split("\n"), type$.JSArray_String), new A.Trace$parseFriendly_closure(), type$.WhereIterable_String), A.frame_Frame___parseFriendly_tearOff$closure(), type$.MappedIterable_String_Frame);
+      t1 = A.List_List$unmodifiable(t1, type$.Frame);
+      return new A.Trace(t1, new A._StringStackTrace(trace));
+    },
+    Trace$($frames, original) {
+      var t1 = A.List_List$unmodifiable($frames, type$.Frame);
+      return new A.Trace(t1, new A._StringStackTrace(original == null ? "" : original));
+    },
+    Trace: function Trace(t0, t1) {
+      this.frames = t0;
+      this.original = t1;
+    },
+    Trace_Trace$from_closure: function Trace_Trace$from_closure(t0) {
+      this.trace = t0;
+    },
+    Trace__parseVM_closure: function Trace__parseVM_closure() {
+    },
+    Trace$parseV8_closure: function Trace$parseV8_closure() {
+    },
+    Trace$parseJSCore_closure: function Trace$parseJSCore_closure() {
+    },
+    Trace$parseFirefox_closure: function Trace$parseFirefox_closure() {
+    },
+    Trace$parseFriendly_closure: function Trace$parseFriendly_closure() {
+    },
+    Trace_terse_closure: function Trace_terse_closure() {
+    },
+    Trace_foldFrames_closure: function Trace_foldFrames_closure(t0) {
+      this.oldPredicate = t0;
+    },
+    Trace_foldFrames_closure0: function Trace_foldFrames_closure0(t0) {
+      this._box_0 = t0;
+    },
+    Trace_toString_closure0: function Trace_toString_closure0() {
+    },
+    Trace_toString_closure: function Trace_toString_closure(t0) {
+      this.longest = t0;
+    },
+    UnparsedFrame: function UnparsedFrame(t0, t1) {
+      this.uri = t0;
+      this.member = t1;
+    },
+    TransformByHandlers_transformByHandlers(_this, onData, onDone, $S, $T) {
+      var _null = null, t1 = {},
+        controller = A.StreamController_StreamController(_null, _null, _null, _null, true, $T);
+      t1.subscription = null;
+      controller.onListen = new A.TransformByHandlers_transformByHandlers_closure(t1, _this, onData, controller, A.instantiate1(A.from_handlers__TransformByHandlers__defaultHandleError$closure(), $T), onDone, $S);
+      return controller.get$stream();
+    },
+    TransformByHandlers__defaultHandleError(error, stackTrace, sink) {
+      sink.addError$2(error, stackTrace);
+    },
+    TransformByHandlers_transformByHandlers_closure: function TransformByHandlers_transformByHandlers_closure(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._box_1 = t0;
+      _._this = t1;
+      _.handleData = t2;
+      _.controller = t3;
+      _.handleError = t4;
+      _.handleDone = t5;
+      _.S = t6;
+    },
+    TransformByHandlers_transformByHandlers__closure: function TransformByHandlers_transformByHandlers__closure(t0, t1, t2) {
+      this.handleData = t0;
+      this.controller = t1;
+      this.S = t2;
+    },
+    TransformByHandlers_transformByHandlers__closure1: function TransformByHandlers_transformByHandlers__closure1(t0, t1) {
+      this.handleError = t0;
+      this.controller = t1;
+    },
+    TransformByHandlers_transformByHandlers__closure0: function TransformByHandlers_transformByHandlers__closure0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.handleDone = t1;
+      this.controller = t2;
+    },
+    TransformByHandlers_transformByHandlers__closure2: function TransformByHandlers_transformByHandlers__closure2(t0, t1) {
+      this._box_1 = t0;
+      this._box_0 = t1;
+    },
+    RateLimit__debounceAggregate(_this, duration, collect, leading, trailing, $T, $S) {
+      var t1 = {};
+      t1.soFar = t1.timer = null;
+      t1.emittedLatestAsLeading = t1.shouldClose = t1.hasPending = false;
+      return A.TransformByHandlers_transformByHandlers(_this, new A.RateLimit__debounceAggregate_closure(t1, $S, collect, false, duration, true, $T), new A.RateLimit__debounceAggregate_closure0(t1, true, $S), $T, $S);
+    },
+    _collect($event, soFar, $T) {
+      var t1 = soFar == null ? A._setArrayType([], $T._eval$1("JSArray<0>")) : soFar;
+      J.add$1$ax(t1, $event);
+      return t1;
+    },
+    RateLimit__debounceAggregate_closure: function RateLimit__debounceAggregate_closure(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._box_0 = t0;
+      _.S = t1;
+      _.collect = t2;
+      _.leading = t3;
+      _.duration = t4;
+      _.trailing = t5;
+      _.T = t6;
+    },
+    RateLimit__debounceAggregate_closure_emit: function RateLimit__debounceAggregate_closure_emit(t0, t1, t2) {
+      this._box_0 = t0;
+      this.sink = t1;
+      this.S = t2;
+    },
+    RateLimit__debounceAggregate__closure: function RateLimit__debounceAggregate__closure(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.trailing = t1;
+      _.emit = t2;
+      _.sink = t3;
+    },
+    RateLimit__debounceAggregate_closure0: function RateLimit__debounceAggregate_closure0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.trailing = t1;
+      this.S = t2;
+    },
+    StringScannerException$(message, span, source) {
+      return new A.StringScannerException(source, message, span);
+    },
+    StringScannerException: function StringScannerException(t0, t1, t2) {
+      this.source = t0;
+      this._span_exception$_message = t1;
+      this._span = t2;
+    },
+    LineScanner$(string) {
+      return new A.LineScanner(null, string);
+    },
+    LineScanner: function LineScanner(t0, t1) {
+      var _ = this;
+      _._line_scanner$_column = _._line_scanner$_line = 0;
+      _.sourceUrl = t0;
+      _.string = t1;
+      _._string_scanner$_position = 0;
+      _._lastMatchPosition = _._lastMatch = null;
+    },
+    SpanScanner$(string, sourceUrl) {
+      var t2,
+        t1 = A.SourceFile$fromString(string, sourceUrl);
+      if (sourceUrl == null)
+        t2 = null;
+      else
+        t2 = typeof sourceUrl == "string" ? A.Uri_parse(sourceUrl) : type$.Uri._as(sourceUrl);
+      return new A.SpanScanner(t1, t2, string);
+    },
+    SpanScanner: function SpanScanner(t0, t1, t2) {
+      var _ = this;
+      _._sourceFile = t0;
+      _.sourceUrl = t1;
+      _.string = t2;
+      _._string_scanner$_position = 0;
+      _._lastMatchPosition = _._lastMatch = null;
+    },
+    _SpanScannerState: function _SpanScannerState(t0, t1) {
+      this._scanner = t0;
+      this.position = t1;
+    },
+    StringScanner$(string, position, sourceUrl) {
+      var t1;
+      if (sourceUrl == null)
+        t1 = null;
+      else
+        t1 = typeof sourceUrl == "string" ? A.Uri_parse(sourceUrl) : type$.Uri._as(sourceUrl);
+      return new A.StringScanner(t1, string);
+    },
+    StringScanner: function StringScanner(t0, t1) {
+      var _ = this;
+      _.sourceUrl = t0;
+      _.string = t1;
+      _._string_scanner$_position = 0;
+      _._lastMatchPosition = _._lastMatch = null;
+    },
+    AsciiGlyphSet: function AsciiGlyphSet() {
+    },
+    UnicodeGlyphSet: function UnicodeGlyphSet() {
+    },
+    WatchEvent: function WatchEvent(t0, t1) {
+      this.type = t0;
+      this.path = t1;
+    },
+    ChangeType: function ChangeType(t0) {
+      this._watch_event$_name = t0;
+    },
+    AnySelectorVisitor0: function AnySelectorVisitor0() {
+    },
+    AnySelectorVisitor_visitComplexSelector_closure0: function AnySelectorVisitor_visitComplexSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    AnySelectorVisitor_visitCompoundSelector_closure0: function AnySelectorVisitor_visitCompoundSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    SupportsAnything0: function SupportsAnything0(t0, t1) {
+      this.contents = t0;
+      this.span = t1;
+    },
+    Argument0: function Argument0(t0, t1, t2) {
+      this.name = t0;
+      this.defaultValue = t1;
+      this.span = t2;
+    },
+    ArgumentDeclaration_ArgumentDeclaration$parse0(contents, url) {
+      return A.ScssParser$0(contents, null, url).parseArgumentDeclaration$0();
+    },
+    ArgumentDeclaration0: function ArgumentDeclaration0(t0, t1, t2) {
+      this.$arguments = t0;
+      this.restArgument = t1;
+      this.span = t2;
+    },
+    ArgumentDeclaration_verify_closure1: function ArgumentDeclaration_verify_closure1() {
+    },
+    ArgumentDeclaration_verify_closure2: function ArgumentDeclaration_verify_closure2() {
+    },
+    ArgumentInvocation$empty0(span) {
+      return new A.ArgumentInvocation0(B.List_empty20, B.Map_empty14, null, null, span);
+    },
+    ArgumentInvocation0: function ArgumentInvocation0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.positional = t0;
+      _.named = t1;
+      _.rest = t2;
+      _.keywordRest = t3;
+      _.span = t4;
+    },
+    argumentListClass_closure: function argumentListClass_closure() {
+    },
+    argumentListClass__closure: function argumentListClass__closure() {
+    },
+    argumentListClass__closure0: function argumentListClass__closure0() {
+    },
+    SassArgumentList$0(contents, keywords, separator) {
+      var t1 = type$.Value_2;
+      t1 = new A.SassArgumentList0(A.ConstantMap_ConstantMap$from(keywords, type$.String, t1), A.List_List$unmodifiable(contents, t1), separator, false);
+      t1.SassList$3$brackets0(contents, separator, false);
+      return t1;
+    },
+    SassArgumentList0: function SassArgumentList0(t0, t1, t2, t3) {
+      var _ = this;
+      _._argument_list$_keywords = t0;
+      _._argument_list$_wereKeywordsAccessed = false;
+      _._list1$_contents = t1;
+      _._list1$_separator = t2;
+      _._list1$_hasBrackets = t3;
+    },
+    JSArray1: function JSArray1() {
+    },
+    AsyncImporter0: function AsyncImporter0() {
+    },
+    JSToDartAsyncImporter: function JSToDartAsyncImporter(t0, t1, t2) {
+      this._async0$_canonicalize = t0;
+      this._load = t1;
+      this._nonCanonicalSchemes = t2;
+    },
+    JSToDartAsyncImporter_canonicalize_closure: function JSToDartAsyncImporter_canonicalize_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    JSToDartAsyncImporter_load_closure: function JSToDartAsyncImporter_load_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    AsyncBuiltInCallable$mixin0($name, $arguments, callback, acceptsContent, url) {
+      return new A.AsyncBuiltInCallable0($name, A.ScssParser$0("@mixin " + $name + "(" + $arguments + ") {", null, url).parseArgumentDeclaration$0(), new A.AsyncBuiltInCallable$mixin_closure0(callback), false);
+    },
+    AsyncBuiltInCallable0: function AsyncBuiltInCallable0(t0, t1, t2, t3) {
+      var _ = this;
+      _.name = t0;
+      _._async_built_in0$_arguments = t1;
+      _._async_built_in0$_callback = t2;
+      _.acceptsContent = t3;
+    },
+    AsyncBuiltInCallable$mixin_closure0: function AsyncBuiltInCallable$mixin_closure0(t0) {
+      this.callback = t0;
+    },
+    compileAsync0(path, charset, fatalDeprecations, functions, futureDeprecations, importCache, indentWidth, lineFeed, logger, nodeImporter, quietDeps, silenceDeprecations, sourceMap, style, syntax, useSpaces, verbose) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CompileResult_2),
+        $async$returnValue, t3, t4, t0, stylesheet, result, t1, t2;
+      var $async$compileAsync0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.Deprecation_3;
+              t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              if (silenceDeprecations != null)
+                t2.addAll$1(0, silenceDeprecations);
+              t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              if (fatalDeprecations != null)
+                t3.addAll$1(0, fatalDeprecations);
+              t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              if (futureDeprecations != null)
+                t1.addAll$1(0, futureDeprecations);
+              logger = A.DeprecationProcessingLogger$0(logger, t3, t1, !verbose, t2);
+              t1 = nodeImporter == null;
+              if (t1)
+                t2 = syntax == null || syntax === A.Syntax_forPath0(path);
+              else
+                t2 = false;
+              $async$goto = t2 ? 3 : 5;
+              break;
+            case 3:
+              // then
+              if (importCache == null)
+                importCache = A.AsyncImportCache$none(logger);
+              t2 = $.$get$FilesystemImporter_cwd0();
+              t3 = A.isNodeJs() ? self.process : null;
+              if (!J.$eq$(t3 == null ? null : J.get$platform$x(t3), "win32")) {
+                t3 = A.isNodeJs() ? self.process : null;
+                t3 = J.$eq$(t3 == null ? null : J.get$platform$x(t3), "darwin");
+              } else
+                t3 = true;
+              if (t3) {
+                t3 = $.$get$context();
+                t4 = A._realCasePath0(A.absolute(t3.normalize$1(path), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                t0 = t4;
+                t4 = t3;
+                t3 = t0;
+              } else {
+                t3 = $.$get$context();
+                t4 = t3.canonicalize$1(0, path);
+                t0 = t4;
+                t4 = t3;
+                t3 = t0;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(importCache.importCanonical$3$originalUrl(t2, t4.toUri$1(t3), t4.toUri$1(path)), $async$compileAsync0);
+            case 6:
+              // returning from await.
+              t4 = $async$result;
+              t4.toString;
+              stylesheet = t4;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              t2 = A.readFile0(path);
+              t3 = syntax == null ? A.Syntax_forPath0(path) : syntax;
+              stylesheet = A.Stylesheet_Stylesheet$parse0(t2, t3, logger, $.$get$context().toUri$1(path));
+            case 4:
+              // join
+              $async$goto = 7;
+              return A._asyncAwait(A._compileStylesheet2(stylesheet, logger, importCache, nodeImporter, $.$get$FilesystemImporter_cwd0(), functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset), $async$compileAsync0);
+            case 7:
+              // returning from await.
+              result = $async$result;
+              logger.summarize$1$js(!t1);
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$compileAsync0, $async$completer);
+    },
+    compileStringAsync0(source, charset, fatalDeprecations, functions, futureDeprecations, importCache, importer, indentWidth, lineFeed, logger, nodeImporter, quietDeps, silenceDeprecations, sourceMap, style, syntax, url, useSpaces, verbose) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CompileResult_2),
+        $async$returnValue, t3, stylesheet, result, t1, t2;
+      var $async$compileStringAsync0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.Deprecation_3;
+              t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              if (silenceDeprecations != null)
+                t2.addAll$1(0, silenceDeprecations);
+              t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              if (fatalDeprecations != null)
+                t3.addAll$1(0, fatalDeprecations);
+              t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+              if (futureDeprecations != null)
+                t1.addAll$1(0, futureDeprecations);
+              logger = A.DeprecationProcessingLogger$0(logger, t3, t1, !verbose, t2);
+              stylesheet = A.Stylesheet_Stylesheet$parse0(source, syntax == null ? B.Syntax_SCSS_scss0 : syntax, logger, url);
+              if (importer == null)
+                t1 = A.isBrowser() ? new A.NoOpImporter0() : $.$get$FilesystemImporter_cwd0();
+              else
+                t1 = importer;
+              $async$goto = 3;
+              return A._asyncAwait(A._compileStylesheet2(stylesheet, logger, importCache, nodeImporter, t1, functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset), $async$compileStringAsync0);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              logger.summarize$1$js(nodeImporter != null);
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$compileStringAsync0, $async$completer);
+    },
+    _compileStylesheet2(stylesheet, logger, importCache, nodeImporter, importer, functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CompileResult_2),
+        $async$returnValue, evaluateResult, serializeResult, resultSourceMap;
+      var $async$_compileStylesheet2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait(A._EvaluateVisitor$2(functions, importCache, logger, nodeImporter, quietDeps, sourceMap).run$2(0, importer, stylesheet), $async$_compileStylesheet2);
+            case 3:
+              // returning from await.
+              evaluateResult = $async$result;
+              serializeResult = A.serialize0(evaluateResult._1, charset, indentWidth, false, lineFeed, sourceMap, style, useSpaces);
+              resultSourceMap = serializeResult._1;
+              if (resultSourceMap != null && importCache != null)
+                A.mapInPlace0(resultSourceMap.urls, new A._compileStylesheet_closure2(stylesheet, importCache));
+              $async$returnValue = new A.CompileResult0(evaluateResult, serializeResult);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_compileStylesheet2, $async$completer);
+    },
+    _compileStylesheet_closure2: function _compileStylesheet_closure2(t0, t1) {
+      this.stylesheet = t0;
+      this.importCache = t1;
+    },
+    AsyncEnvironment$0() {
+      var t1 = type$.String,
+        t2 = type$.Module_AsyncCallable_2,
+        t3 = type$.AstNode_2,
+        t4 = type$.int,
+        t5 = type$.AsyncCallable_2,
+        t6 = type$.JSArray_Map_String_AsyncCallable_2;
+      return new A.AsyncEnvironment0(A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), null, null, A._setArrayType([], type$.JSArray_Module_AsyncCallable_2), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value_2)], type$.JSArray_Map_String_Value_2), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t3)], type$.JSArray_Map_String_AstNode_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), null);
+    },
+    AsyncEnvironment$_0(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, _functions, _mixins, _content) {
+      var t1 = type$.String,
+        t2 = type$.int;
+      return new A.AsyncEnvironment0(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _functions, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _mixins, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _content);
+    },
+    _EnvironmentModule__EnvironmentModule2(environment, css, preModuleComments, extensionStore, forwarded) {
+      var t1, t2, t3, t4, t5, t6, module, result, t7;
+      if (forwarded == null)
+        forwarded = B.Set_empty6;
+      t1 = type$.dynamic;
+      t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t2 = type$.Module_AsyncCallable_2, t3 = type$.List_CssComment_2, t4 = A.MapExtensions_get_pairs0(preModuleComments, t2, t3), t4 = t4.get$iterator(t4), t5 = type$.CssComment_2; t4.moveNext$0();) {
+        t6 = t4.get$current(t4);
+        module = t6._0;
+        result = A.List_List$from(t6._1, false, t5);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        t1.$indexSet(0, module, result);
+      }
+      t1 = A.ConstantMap_ConstantMap$from(t1, t2, t3);
+      t2 = A._EnvironmentModule__makeModulesByVariable2(forwarded);
+      t3 = A._EnvironmentModule__memberMap2(B.JSArray_methods.get$first(environment._async_environment0$_variables), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure17(), type$.Map_String_Value_2), type$.Value_2);
+      t4 = A._EnvironmentModule__memberMap2(B.JSArray_methods.get$first(environment._async_environment0$_variableNodes), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure18(), type$.Map_String_AstNode_2), type$.AstNode_2);
+      t5 = type$.Map_String_AsyncCallable_2;
+      t6 = type$.AsyncCallable_2;
+      t7 = A._EnvironmentModule__memberMap2(B.JSArray_methods.get$first(environment._async_environment0$_functions), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure19(), t5), t6);
+      t6 = A._EnvironmentModule__memberMap2(B.JSArray_methods.get$first(environment._async_environment0$_mixins), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure20(), t5), t6);
+      t5 = J.get$isNotEmpty$asx(css.get$children(css)) || preModuleComments.get$isNotEmpty(preModuleComments) || B.JSArray_methods.any$1(environment._async_environment0$_allModules, new A._EnvironmentModule__EnvironmentModule_closure21());
+      return A._EnvironmentModule$_2(environment, css, t1, extensionStore, t2, t3, t4, t7, t6, t5, !extensionStore.get$isEmpty(extensionStore) || B.JSArray_methods.any$1(environment._async_environment0$_allModules, new A._EnvironmentModule__EnvironmentModule_closure22()));
+    },
+    _EnvironmentModule__makeModulesByVariable2(forwarded) {
+      var modulesByVariable, t1, t2, t3, t4, t5;
+      if (forwarded.get$isEmpty(forwarded))
+        return B.Map_empty16;
+      modulesByVariable = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Module_AsyncCallable_2);
+      for (t1 = forwarded.get$iterator(forwarded); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        if (t2 instanceof A._EnvironmentModule2) {
+          for (t3 = t2._async_environment0$_modulesByVariable, t3 = t3.get$values(t3), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+            t4 = t3.get$current(t3);
+            t5 = t4.get$variables();
+            A.setAll0(modulesByVariable, t5.get$keys(t5), t4);
+          }
+          A.setAll0(modulesByVariable, J.get$keys$z(B.JSArray_methods.get$first(t2._async_environment0$_environment._async_environment0$_variables)), t2);
+        } else {
+          t3 = t2.get$variables();
+          A.setAll0(modulesByVariable, t3.get$keys(t3), t2);
+        }
+      }
+      return modulesByVariable;
+    },
+    _EnvironmentModule__memberMap2(localMap, otherMaps, $V) {
+      var t1, t2, t3;
+      localMap = new A.PublicMemberMapView0(localMap, $V._eval$1("PublicMemberMapView0<0>"));
+      if (otherMaps.get$isEmpty(otherMaps))
+        return localMap;
+      t1 = A._setArrayType([], $V._eval$1("JSArray<Map<String,0>>"));
+      for (t2 = otherMaps.get$iterator(otherMaps); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        if (t3.get$isNotEmpty(t3))
+          t1.push(t3);
+      }
+      t1.push(localMap);
+      if (t1.length === 1)
+        return localMap;
+      return A.MergedMapView$0(t1, type$.String, $V);
+    },
+    _EnvironmentModule$_2(_environment, css, preModuleComments, extensionStore, _modulesByVariable, variables, variableNodes, functions, mixins, transitivelyContainsCss, transitivelyContainsExtensions) {
+      return new A._EnvironmentModule2(_environment._async_environment0$_allModules, variables, variableNodes, functions, mixins, extensionStore, css, preModuleComments, transitivelyContainsCss, transitivelyContainsExtensions, _environment, _modulesByVariable);
+    },
+    AsyncEnvironment0: function AsyncEnvironment0(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14) {
+      var _ = this;
+      _._async_environment0$_modules = t0;
+      _._async_environment0$_namespaceNodes = t1;
+      _._async_environment0$_globalModules = t2;
+      _._async_environment0$_importedModules = t3;
+      _._async_environment0$_forwardedModules = t4;
+      _._async_environment0$_nestedForwardedModules = t5;
+      _._async_environment0$_allModules = t6;
+      _._async_environment0$_variables = t7;
+      _._async_environment0$_variableNodes = t8;
+      _._async_environment0$_variableIndices = t9;
+      _._async_environment0$_functions = t10;
+      _._async_environment0$_functionIndices = t11;
+      _._async_environment0$_mixins = t12;
+      _._async_environment0$_mixinIndices = t13;
+      _._async_environment0$_content = t14;
+      _._async_environment0$_inMixin = false;
+      _._async_environment0$_inSemiGlobalScope = true;
+      _._async_environment0$_lastVariableIndex = _._async_environment0$_lastVariableName = null;
+    },
+    AsyncEnvironment__getVariableFromGlobalModule_closure0: function AsyncEnvironment__getVariableFromGlobalModule_closure0(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment_setVariable_closure2: function AsyncEnvironment_setVariable_closure2(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    AsyncEnvironment_setVariable_closure3: function AsyncEnvironment_setVariable_closure3(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment_setVariable_closure4: function AsyncEnvironment_setVariable_closure4(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    AsyncEnvironment__getFunctionFromGlobalModule_closure0: function AsyncEnvironment__getFunctionFromGlobalModule_closure0(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment__getMixinFromGlobalModule_closure0: function AsyncEnvironment__getMixinFromGlobalModule_closure0(t0) {
+      this.name = t0;
+    },
+    AsyncEnvironment_toModule_closure0: function AsyncEnvironment_toModule_closure0() {
+    },
+    AsyncEnvironment_toDummyModule_closure0: function AsyncEnvironment_toDummyModule_closure0() {
+    },
+    _EnvironmentModule2: function _EnvironmentModule2(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11) {
+      var _ = this;
+      _.upstream = t0;
+      _.variables = t1;
+      _.variableNodes = t2;
+      _.functions = t3;
+      _.mixins = t4;
+      _.extensionStore = t5;
+      _.css = t6;
+      _.preModuleComments = t7;
+      _.transitivelyContainsCss = t8;
+      _.transitivelyContainsExtensions = t9;
+      _._async_environment0$_environment = t10;
+      _._async_environment0$_modulesByVariable = t11;
+    },
+    _EnvironmentModule__EnvironmentModule_closure17: function _EnvironmentModule__EnvironmentModule_closure17() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure18: function _EnvironmentModule__EnvironmentModule_closure18() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure19: function _EnvironmentModule__EnvironmentModule_closure19() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure20: function _EnvironmentModule__EnvironmentModule_closure20() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure21: function _EnvironmentModule__EnvironmentModule_closure21() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure22: function _EnvironmentModule__EnvironmentModule_closure22() {
+    },
+    _EvaluateVisitor$2(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t4,
+        t1 = type$.Uri,
+        t2 = type$.Module_AsyncCallable_2,
+        t3 = A._setArrayType([], type$.JSArray_Record_2_String_and_AstNode_2);
+      if (importCache == null)
+        t4 = nodeImporter == null ? A.AsyncImportCache$none(logger) : null;
+      else
+        t4 = importCache;
+      t1 = new A._EvaluateVisitor2(t4, nodeImporter, A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.AsyncCallable_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Configuration_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode_2), logger, A.LinkedHashSet_LinkedHashSet$_empty(type$.Record_2_String_and_SourceSpan), quietDeps, sourceMap, A.AsyncEnvironment$0(), A.LinkedHashSet_LinkedHashSet$_empty(t1), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.nullable_AstNode_2), t3, B.Configuration_Map_empty_null0);
+      t1._EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap2(functions, importCache, logger, nodeImporter, quietDeps, sourceMap);
+      return t1;
+    },
+    _EvaluateVisitor2: function _EvaluateVisitor2(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15) {
+      var _ = this;
+      _._async_evaluate0$_importCache = t0;
+      _._async_evaluate0$_nodeImporter = t1;
+      _._async_evaluate0$_builtInFunctions = t2;
+      _._async_evaluate0$_builtInModules = t3;
+      _._async_evaluate0$_modules = t4;
+      _._async_evaluate0$_moduleConfigurations = t5;
+      _._async_evaluate0$_moduleNodes = t6;
+      _._async_evaluate0$_logger = t7;
+      _._async_evaluate0$_warningsEmitted = t8;
+      _._async_evaluate0$_quietDeps = t9;
+      _._async_evaluate0$_sourceMap = t10;
+      _._async_evaluate0$_environment = t11;
+      _._async_evaluate0$_declarationName = _._async_evaluate0$__parent = _._async_evaluate0$_mediaQuerySources = _._async_evaluate0$_mediaQueries = _._async_evaluate0$_styleRuleIgnoringAtRoot = null;
+      _._async_evaluate0$_member = "root stylesheet";
+      _._async_evaluate0$_importSpan = _._async_evaluate0$_callableNode = _._async_evaluate0$_currentCallable = null;
+      _._async_evaluate0$_inSupportsDeclaration = _._async_evaluate0$_inKeyframes = _._async_evaluate0$_atRootExcludingStyleRule = _._async_evaluate0$_inUnknownAtRule = _._async_evaluate0$_inFunction = false;
+      _._async_evaluate0$_loadedUrls = t12;
+      _._async_evaluate0$_activeModules = t13;
+      _._async_evaluate0$_stack = t14;
+      _._async_evaluate0$_importer = null;
+      _._async_evaluate0$_inDependency = false;
+      _._async_evaluate0$__extensionStore = _._async_evaluate0$_preModuleComments = _._async_evaluate0$_outOfOrderImports = _._async_evaluate0$__endOfImports = _._async_evaluate0$__root = _._async_evaluate0$__stylesheet = null;
+      _._async_evaluate0$_configuration = t15;
+    },
+    _EvaluateVisitor_closure38: function _EvaluateVisitor_closure38(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure39: function _EvaluateVisitor_closure39(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure40: function _EvaluateVisitor_closure40(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure41: function _EvaluateVisitor_closure41(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure42: function _EvaluateVisitor_closure42(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure43: function _EvaluateVisitor_closure43(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure44: function _EvaluateVisitor_closure44(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure45: function _EvaluateVisitor_closure45(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure46: function _EvaluateVisitor_closure46(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure14: function _EvaluateVisitor__closure14(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure47: function _EvaluateVisitor_closure47(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure13: function _EvaluateVisitor__closure13(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure48: function _EvaluateVisitor_closure48(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure49: function _EvaluateVisitor_closure49(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure11: function _EvaluateVisitor__closure11(t0, t1, t2) {
+      this.values = t0;
+      this.span = t1;
+      this.callableNode = t2;
+    },
+    _EvaluateVisitor__closure12: function _EvaluateVisitor__closure12(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure50: function _EvaluateVisitor_closure50(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_run_closure2: function _EvaluateVisitor_run_closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.importer = t2;
+    },
+    _EvaluateVisitor_run__closure2: function _EvaluateVisitor_run__closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.importer = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__loadModule_closure5: function _EvaluateVisitor__loadModule_closure5(t0, t1) {
+      this._box_1 = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__loadModule_closure6: function _EvaluateVisitor__loadModule_closure6(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.url = t1;
+      _.nodeWithSpan = t2;
+      _.baseUrl = t3;
+      _.namesInErrors = t4;
+      _.configuration = t5;
+      _.callback = t6;
+    },
+    _EvaluateVisitor__loadModule__closure5: function _EvaluateVisitor__loadModule__closure5(t0, t1) {
+      this.$this = t0;
+      this.message = t1;
+    },
+    _EvaluateVisitor__loadModule__closure6: function _EvaluateVisitor__loadModule__closure6(t0, t1, t2) {
+      this._box_0 = t0;
+      this.callback = t1;
+      this.firstLoad = t2;
+    },
+    _EvaluateVisitor__execute_closure2: function _EvaluateVisitor__execute_closure2(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.stylesheet = t2;
+      _.extensionStore = t3;
+      _.configuration = t4;
+      _.css = t5;
+      _.preModuleComments = t6;
+    },
+    _EvaluateVisitor__combineCss_closure5: function _EvaluateVisitor__combineCss_closure5() {
+    },
+    _EvaluateVisitor__combineCss_closure6: function _EvaluateVisitor__combineCss_closure6(t0) {
+      this.selectors = t0;
+    },
+    _EvaluateVisitor__combineCss_visitModule2: function _EvaluateVisitor__combineCss_visitModule2(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.seen = t1;
+      _.clone = t2;
+      _.css = t3;
+      _.imports = t4;
+      _.sorted = t5;
+    },
+    _EvaluateVisitor__extendModules_closure5: function _EvaluateVisitor__extendModules_closure5(t0) {
+      this.originalSelectors = t0;
+    },
+    _EvaluateVisitor__extendModules_closure6: function _EvaluateVisitor__extendModules_closure6() {
+    },
+    _EvaluateVisitor_visitAtRootRule_closure5: function _EvaluateVisitor_visitAtRootRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitAtRootRule_closure6: function _EvaluateVisitor_visitAtRootRule_closure6(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure17: function _EvaluateVisitor__scopeForAtRoot_closure17(t0, t1, t2) {
+      this.$this = t0;
+      this.newParent = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure18: function _EvaluateVisitor__scopeForAtRoot_closure18(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure19: function _EvaluateVisitor__scopeForAtRoot_closure19(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot__closure2: function _EvaluateVisitor__scopeForAtRoot__closure2(t0, t1) {
+      this.innerScope = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure20: function _EvaluateVisitor__scopeForAtRoot_closure20(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure21: function _EvaluateVisitor__scopeForAtRoot_closure21() {
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure22: function _EvaluateVisitor__scopeForAtRoot_closure22(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor_visitContentRule_closure2: function _EvaluateVisitor_visitContentRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.content = t1;
+    },
+    _EvaluateVisitor_visitDeclaration_closure2: function _EvaluateVisitor_visitDeclaration_closure2(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitEachRule_closure8: function _EvaluateVisitor_visitEachRule_closure8(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure9: function _EvaluateVisitor_visitEachRule_closure9(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure10: function _EvaluateVisitor_visitEachRule_closure10(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.list = t1;
+      _.setVariables = t2;
+      _.node = t3;
+    },
+    _EvaluateVisitor_visitEachRule__closure2: function _EvaluateVisitor_visitEachRule__closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.setVariables = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitEachRule___closure2: function _EvaluateVisitor_visitEachRule___closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure8: function _EvaluateVisitor_visitAtRule_closure8(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure9: function _EvaluateVisitor_visitAtRule_closure9(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.children = t2;
+    },
+    _EvaluateVisitor_visitAtRule__closure2: function _EvaluateVisitor_visitAtRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.children = t1;
+    },
+    _EvaluateVisitor_visitAtRule_closure10: function _EvaluateVisitor_visitAtRule_closure10() {
+    },
+    _EvaluateVisitor_visitForRule_closure14: function _EvaluateVisitor_visitForRule_closure14(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure15: function _EvaluateVisitor_visitForRule_closure15(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure16: function _EvaluateVisitor_visitForRule_closure16(t0) {
+      this.fromNumber = t0;
+    },
+    _EvaluateVisitor_visitForRule_closure17: function _EvaluateVisitor_visitForRule_closure17(t0, t1) {
+      this.toNumber = t0;
+      this.fromNumber = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure18: function _EvaluateVisitor_visitForRule_closure18(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.from = t3;
+      _.direction = t4;
+      _.fromNumber = t5;
+    },
+    _EvaluateVisitor_visitForRule__closure2: function _EvaluateVisitor_visitForRule__closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitForwardRule_closure5: function _EvaluateVisitor_visitForwardRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForwardRule_closure6: function _EvaluateVisitor_visitForwardRule_closure6(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__registerCommentsForModule_closure2: function _EvaluateVisitor__registerCommentsForModule_closure2() {
+    },
+    _EvaluateVisitor_visitIfRule_closure2: function _EvaluateVisitor_visitIfRule_closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIfRule__closure2: function _EvaluateVisitor_visitIfRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.clause = t1;
+    },
+    _EvaluateVisitor_visitIfRule___closure2: function _EvaluateVisitor_visitIfRule___closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport_closure2: function _EvaluateVisitor__visitDynamicImport_closure2(t0, t1) {
+      this.$this = t0;
+      this.$import = t1;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure11: function _EvaluateVisitor__visitDynamicImport__closure11(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure12: function _EvaluateVisitor__visitDynamicImport__closure12() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure13: function _EvaluateVisitor__visitDynamicImport__closure13() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure14: function _EvaluateVisitor__visitDynamicImport__closure14(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.loadsUserDefinedModules = t2;
+      _.environment = t3;
+      _.children = t4;
+    },
+    _EvaluateVisitor__applyMixin_closure5: function _EvaluateVisitor__applyMixin_closure5(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure6: function _EvaluateVisitor__applyMixin__closure6(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin_closure6: function _EvaluateVisitor__applyMixin_closure6(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.contentCallable = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure5: function _EvaluateVisitor__applyMixin__closure5(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin___closure2: function _EvaluateVisitor__applyMixin___closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin____closure2: function _EvaluateVisitor__applyMixin____closure2(t0, t1) {
+      this.$this = t0;
+      this.statement = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure8: function _EvaluateVisitor_visitIncludeRule_closure8(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure9: function _EvaluateVisitor_visitIncludeRule_closure9(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure10: function _EvaluateVisitor_visitIncludeRule_closure10(t0) {
+      this.node = t0;
+    },
+    _EvaluateVisitor_visitMediaRule_closure8: function _EvaluateVisitor_visitMediaRule_closure8(t0, t1) {
+      this.$this = t0;
+      this.queries = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure9: function _EvaluateVisitor_visitMediaRule_closure9(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.queries = t2;
+      _.mergedSources = t3;
+      _.node = t4;
+    },
+    _EvaluateVisitor_visitMediaRule__closure2: function _EvaluateVisitor_visitMediaRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule___closure2: function _EvaluateVisitor_visitMediaRule___closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure10: function _EvaluateVisitor_visitMediaRule_closure10(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitStyleRule_closure14: function _EvaluateVisitor_visitStyleRule_closure14(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure15: function _EvaluateVisitor_visitStyleRule_closure15() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure17: function _EvaluateVisitor_visitStyleRule_closure17(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitStyleRule__closure2: function _EvaluateVisitor_visitStyleRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure16: function _EvaluateVisitor_visitStyleRule_closure16() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure18: function _EvaluateVisitor_visitStyleRule_closure18() {
+    },
+    _EvaluateVisitor_visitSupportsRule_closure5: function _EvaluateVisitor_visitSupportsRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule__closure2: function _EvaluateVisitor_visitSupportsRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule_closure6: function _EvaluateVisitor_visitSupportsRule_closure6() {
+    },
+    _EvaluateVisitor__visitSupportsCondition_closure2: function _EvaluateVisitor__visitSupportsCondition_closure2(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure8: function _EvaluateVisitor_visitVariableDeclaration_closure8(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure9: function _EvaluateVisitor_visitVariableDeclaration_closure9(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure10: function _EvaluateVisitor_visitVariableDeclaration_closure10(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.value = t2;
+    },
+    _EvaluateVisitor_visitUseRule_closure2: function _EvaluateVisitor_visitUseRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWarnRule_closure2: function _EvaluateVisitor_visitWarnRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule_closure2: function _EvaluateVisitor_visitWhileRule_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule__closure2: function _EvaluateVisitor_visitWhileRule__closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitBinaryOperationExpression_closure2: function _EvaluateVisitor_visitBinaryOperationExpression_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__slash_recommendation2: function _EvaluateVisitor__slash_recommendation2() {
+    },
+    _EvaluateVisitor_visitVariableExpression_closure2: function _EvaluateVisitor_visitVariableExpression_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitUnaryOperationExpression_closure2: function _EvaluateVisitor_visitUnaryOperationExpression_closure2(t0, t1) {
+      this.node = t0;
+      this.operand = t1;
+    },
+    _EvaluateVisitor_visitListExpression_closure2: function _EvaluateVisitor_visitListExpression_closure2(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure8: function _EvaluateVisitor_visitFunctionExpression_closure8(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure9: function _EvaluateVisitor_visitFunctionExpression_closure9() {
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure10: function _EvaluateVisitor_visitFunctionExpression_closure10(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__checkCalculationArguments_check2: function _EvaluateVisitor__checkCalculationArguments_check2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__visitCalculationExpression_closure2: function _EvaluateVisitor__visitCalculationExpression_closure2(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.inLegacySassFunction = t3;
+    },
+    _EvaluateVisitor_visitInterpolatedFunctionExpression_closure2: function _EvaluateVisitor_visitInterpolatedFunctionExpression_closure2(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.$function = t2;
+    },
+    _EvaluateVisitor__runUserDefinedCallable_closure2: function _EvaluateVisitor__runUserDefinedCallable_closure2(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.callable = t1;
+      _.evaluated = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable__closure2: function _EvaluateVisitor__runUserDefinedCallable__closure2(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable___closure2: function _EvaluateVisitor__runUserDefinedCallable___closure2(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable____closure2: function _EvaluateVisitor__runUserDefinedCallable____closure2() {
+    },
+    _EvaluateVisitor__runFunctionCallable_closure2: function _EvaluateVisitor__runFunctionCallable_closure2(t0, t1) {
+      this.$this = t0;
+      this.callable = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure8: function _EvaluateVisitor__runBuiltInCallable_closure8(t0, t1, t2) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+      this.namedSet = t2;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure9: function _EvaluateVisitor__runBuiltInCallable_closure9(t0, t1) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure10: function _EvaluateVisitor__runBuiltInCallable_closure10() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure11: function _EvaluateVisitor__evaluateArguments_closure11() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure12: function _EvaluateVisitor__evaluateArguments_closure12(t0, t1) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+    },
+    _EvaluateVisitor__evaluateArguments_closure13: function _EvaluateVisitor__evaluateArguments_closure13(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.namedNodes = t3;
+    },
+    _EvaluateVisitor__evaluateArguments_closure14: function _EvaluateVisitor__evaluateArguments_closure14() {
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure11: function _EvaluateVisitor__evaluateMacroArguments_closure11(t0) {
+      this.restArgs = t0;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure12: function _EvaluateVisitor__evaluateMacroArguments_closure12(t0, t1, t2) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+      this.restArgs = t2;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure13: function _EvaluateVisitor__evaluateMacroArguments_closure13(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.restArgs = t3;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure14: function _EvaluateVisitor__evaluateMacroArguments_closure14(t0, t1, t2) {
+      this.$this = t0;
+      this.keywordRestNodeForSpan = t1;
+      this.keywordRestArgs = t2;
+    },
+    _EvaluateVisitor__addRestMap_closure2: function _EvaluateVisitor__addRestMap_closure2(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.values = t1;
+      _.convert = t2;
+      _.expressionNode = t3;
+      _.map = t4;
+      _.nodeWithSpan = t5;
+    },
+    _EvaluateVisitor__verifyArguments_closure2: function _EvaluateVisitor__verifyArguments_closure2(t0, t1, t2) {
+      this.$arguments = t0;
+      this.positional = t1;
+      this.named = t2;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure5: function _EvaluateVisitor_visitCssAtRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure6: function _EvaluateVisitor_visitCssAtRule_closure6() {
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure5: function _EvaluateVisitor_visitCssKeyframeBlock_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure6: function _EvaluateVisitor_visitCssKeyframeBlock_closure6() {
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure8: function _EvaluateVisitor_visitCssMediaRule_closure8(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure9: function _EvaluateVisitor_visitCssMediaRule_closure9(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.node = t2;
+      _.mergedSources = t3;
+    },
+    _EvaluateVisitor_visitCssMediaRule__closure2: function _EvaluateVisitor_visitCssMediaRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule___closure2: function _EvaluateVisitor_visitCssMediaRule___closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure10: function _EvaluateVisitor_visitCssMediaRule_closure10(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure6: function _EvaluateVisitor_visitCssStyleRule_closure6(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitCssStyleRule__closure2: function _EvaluateVisitor_visitCssStyleRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure5: function _EvaluateVisitor_visitCssStyleRule_closure5() {
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure5: function _EvaluateVisitor_visitCssSupportsRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule__closure2: function _EvaluateVisitor_visitCssSupportsRule__closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure6: function _EvaluateVisitor_visitCssSupportsRule_closure6() {
+    },
+    _EvaluateVisitor__performInterpolationHelper_closure2: function _EvaluateVisitor__performInterpolationHelper_closure2(t0) {
+      this.interpolation = t0;
+    },
+    _EvaluateVisitor__serialize_closure2: function _EvaluateVisitor__serialize_closure2(t0, t1) {
+      this.value = t0;
+      this.quote = t1;
+    },
+    _EvaluateVisitor__expressionNode_closure2: function _EvaluateVisitor__expressionNode_closure2(t0, t1) {
+      this.$this = t0;
+      this.expression = t1;
+    },
+    _EvaluateVisitor__withoutSlash_recommendation2: function _EvaluateVisitor__withoutSlash_recommendation2() {
+    },
+    _EvaluateVisitor__stackFrame_closure2: function _EvaluateVisitor__stackFrame_closure2(t0) {
+      this.$this = t0;
+    },
+    _ImportedCssVisitor2: function _ImportedCssVisitor2(t0) {
+      this._async_evaluate0$_visitor = t0;
+    },
+    _ImportedCssVisitor_visitCssAtRule_closure2: function _ImportedCssVisitor_visitCssAtRule_closure2() {
+    },
+    _ImportedCssVisitor_visitCssMediaRule_closure2: function _ImportedCssVisitor_visitCssMediaRule_closure2(t0) {
+      this.hasBeenMerged = t0;
+    },
+    _ImportedCssVisitor_visitCssStyleRule_closure2: function _ImportedCssVisitor_visitCssStyleRule_closure2() {
+    },
+    _ImportedCssVisitor_visitCssSupportsRule_closure2: function _ImportedCssVisitor_visitCssSupportsRule_closure2() {
+    },
+    _EvaluationContext2: function _EvaluationContext2(t0, t1) {
+      this._async_evaluate0$_visitor = t0;
+      this._async_evaluate0$_defaultWarnNodeWithSpan = t1;
+    },
+    JSToDartAsyncFileImporter: function JSToDartAsyncFileImporter(t0) {
+      this._findFileUrl = t0;
+    },
+    JSToDartAsyncFileImporter_canonicalize_closure: function JSToDartAsyncFileImporter_canonicalize_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    AsyncImportCache$(importers, loadPaths, logger, packageConfig) {
+      var t1 = type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2,
+        t2 = type$.Record_3_AsyncImporter_and_Uri_and_bool_forImport_2,
+        t3 = type$.Uri,
+        t4 = A.AsyncImportCache__toImporters0(importers, loadPaths, packageConfig);
+      return new A.AsyncImportCache0(t4, logger, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.nullable_Stylesheet_2), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.ImporterResult_2));
+    },
+    AsyncImportCache$none(logger) {
+      var t1 = type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2,
+        t2 = type$.Record_3_AsyncImporter_and_Uri_and_bool_forImport_2,
+        t3 = type$.Uri;
+      return new A.AsyncImportCache0(B.List_empty25, logger, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.nullable_Stylesheet_2), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.ImporterResult_2));
+    },
+    AsyncImportCache__toImporters0(importers, loadPaths, packageConfig) {
+      var t1, t2, t3, t4, _i, path, _null = null,
+        sassPath = A.getEnvironmentVariable0("SASS_PATH");
+      if (A.isBrowser()) {
+        t1 = A._setArrayType([], type$.JSArray_AsyncImporter);
+        if (importers != null)
+          B.JSArray_methods.addAll$1(t1, importers);
+        return t1;
+      }
+      t1 = A._setArrayType([], type$.JSArray_AsyncImporter);
+      if (importers != null)
+        B.JSArray_methods.addAll$1(t1, importers);
+      if (loadPaths != null)
+        for (t2 = J.get$iterator$ax(loadPaths); t2.moveNext$0();) {
+          t3 = t2.get$current(t2);
+          t1.push(new A.FilesystemImporter0($.$get$context().absolute$15(t3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+        }
+      if (sassPath != null) {
+        t2 = A.isNodeJs() ? self.process : _null;
+        t3 = sassPath.split(J.$eq$(t2 == null ? _null : J.get$platform$x(t2), "win32") ? ";" : ":");
+        t4 = t3.length;
+        _i = 0;
+        for (; _i < t4; ++_i) {
+          path = t3[_i];
+          t1.push(new A.FilesystemImporter0($.$get$context().absolute$15(path, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+        }
+      }
+      return t1;
+    },
+    AsyncImportCache0: function AsyncImportCache0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._async_import_cache0$_importers = t0;
+      _._async_import_cache0$_logger = t1;
+      _._async_import_cache0$_canonicalizeCache = t2;
+      _._async_import_cache0$_perImporterCanonicalizeCache = t3;
+      _._async_import_cache0$_nonCanonicalRelativeUrls = t4;
+      _._async_import_cache0$_importCache = t5;
+      _._async_import_cache0$_resultsCache = t6;
+    },
+    AsyncImportCache_canonicalize_closure0: function AsyncImportCache_canonicalize_closure0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.baseImporter = t1;
+      _.resolvedUrl = t2;
+      _.baseUrl = t3;
+      _.forImport = t4;
+      _.key = t5;
+      _.url = t6;
+    },
+    AsyncImportCache__canonicalize_closure0: function AsyncImportCache__canonicalize_closure0(t0, t1) {
+      this.importer = t0;
+      this.url = t1;
+    },
+    AsyncImportCache_importCanonical_closure0: function AsyncImportCache_importCanonical_closure0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.canonicalUrl = t2;
+      _.originalUrl = t3;
+      _.quiet = t4;
+    },
+    AsyncImportCache_humanize_closure3: function AsyncImportCache_humanize_closure3(t0) {
+      this.canonicalUrl = t0;
+    },
+    AsyncImportCache_humanize_closure4: function AsyncImportCache_humanize_closure4() {
+    },
+    AsyncImportCache_humanize_closure5: function AsyncImportCache_humanize_closure5() {
+    },
+    AsyncImportCache_humanize_closure6: function AsyncImportCache_humanize_closure6(t0) {
+      this.canonicalUrl = t0;
+    },
+    AtRootQueryParser$0(contents, logger, url) {
+      var t1 = A.SpanScanner$(contents, url);
+      return new A.AtRootQueryParser0(t1, logger, null);
+    },
+    AtRootQueryParser0: function AtRootQueryParser0(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._parser0$_interpolationMap = t2;
+    },
+    AtRootQueryParser_parse_closure0: function AtRootQueryParser_parse_closure0(t0) {
+      this.$this = t0;
+    },
+    AtRootQuery0: function AtRootQuery0(t0, t1, t2, t3) {
+      var _ = this;
+      _.include = t0;
+      _.names = t1;
+      _._at_root_query0$_all = t2;
+      _._at_root_query0$_rule = t3;
+    },
+    AtRootRule$0(children, span, query) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.AtRootRule0(query, span, t1, t2);
+    },
+    AtRootRule0: function AtRootRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.query = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    ModifiableCssAtRule$0($name, span, childless, value) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      return new A.ModifiableCssAtRule0($name, value, childless, span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode_2), t1);
+    },
+    ModifiableCssAtRule0: function ModifiableCssAtRule0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.isChildless = t2;
+      _.span = t3;
+      _.children = t4;
+      _._node$_children = t5;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    AtRule$0($name, span, children, value) {
+      var t1 = children == null ? null : A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = t1 == null ? null : B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.AtRule0($name, value, span, t1, t2 === true);
+    },
+    AtRule0: function AtRule0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.span = t2;
+      _.children = t3;
+      _.hasDeclarations = t4;
+    },
+    AttributeSelector0: function AttributeSelector0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.op = t1;
+      _.value = t2;
+      _.modifier = t3;
+      _.span = t4;
+    },
+    AttributeOperator0: function AttributeOperator0(t0, t1) {
+      this._attribute0$_text = t0;
+      this._name = t1;
+    },
+    BinaryOperationExpression0: function BinaryOperationExpression0(t0, t1, t2, t3) {
+      var _ = this;
+      _.operator = t0;
+      _.left = t1;
+      _.right = t2;
+      _.allowsSlash = t3;
+    },
+    BinaryOperator0: function BinaryOperator0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.operator = t1;
+      _.precedence = t2;
+      _.isAssociative = t3;
+      _._name = t4;
+    },
+    BooleanExpression0: function BooleanExpression0(t0, t1) {
+      this.value = t0;
+      this.span = t1;
+    },
+    booleanClass_closure: function booleanClass_closure() {
+    },
+    booleanClass__closure: function booleanClass__closure() {
+    },
+    legacyBooleanClass_closure: function legacyBooleanClass_closure() {
+    },
+    legacyBooleanClass__closure: function legacyBooleanClass__closure() {
+    },
+    legacyBooleanClass__closure0: function legacyBooleanClass__closure0() {
+    },
+    SassBoolean0: function SassBoolean0(t0) {
+      this.value = t0;
+    },
+    Box0: function Box0(t0, t1) {
+      this._box0$_inner = t0;
+      this.$ti = t1;
+    },
+    ModifiableBox0: function ModifiableBox0(t0, t1) {
+      this.value = t0;
+      this.$ti = t1;
+    },
+    BuiltInCallable$function0($name, $arguments, callback, url) {
+      return new A.BuiltInCallable0($name, A._setArrayType([new A._Record_2(A.ScssParser$0("@function " + $name + "(" + $arguments + ") {", null, url).parseArgumentDeclaration$0(), callback)], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value_2), false);
+    },
+    BuiltInCallable$mixin0($name, $arguments, callback, acceptsContent, url) {
+      return new A.BuiltInCallable0($name, A._setArrayType([new A._Record_2(A.ScssParser$0("@mixin " + $name + "(" + $arguments + ") {", null, url).parseArgumentDeclaration$0(), new A.BuiltInCallable$mixin_closure0(callback))], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value_2), acceptsContent);
+    },
+    BuiltInCallable$overloadedFunction0($name, overloads) {
+      var t2, t3, t4, t5, t6, args, callback,
+        t1 = A._setArrayType([], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value_2);
+      for (t2 = type$.String, t3 = A.MapExtensions_get_pairs0(overloads, t2, type$.Value_Function_List_Value_2), t3 = t3.get$iterator(t3), t4 = "@function " + $name + "(", t5 = type$.VariableDeclaration_2; t3.moveNext$0();) {
+        t6 = t3.get$current(t3);
+        args = t6._0;
+        callback = t6._1;
+        t6 = A.SpanScanner$(t4 + args + ") {", null);
+        t1.push(new A._Record_2(new A.ScssParser0(A.LinkedHashMap_LinkedHashMap$_empty(t2, t5), t6, B.StderrLogger_false0, null).parseArgumentDeclaration$0(), callback));
+      }
+      return new A.BuiltInCallable0($name, t1, false);
+    },
+    BuiltInCallable0: function BuiltInCallable0(t0, t1, t2) {
+      this.name = t0;
+      this._built_in$_overloads = t1;
+      this.acceptsContent = t2;
+    },
+    BuiltInCallable$mixin_closure0: function BuiltInCallable$mixin_closure0(t0) {
+      this.callback = t0;
+    },
+    BuiltInModule$0($name, functions, mixins, variables, $T) {
+      var t1 = A._Uri__Uri(null, $name, null, "sass"),
+        t2 = A.BuiltInModule__callableMap0(functions, $T),
+        t3 = A.BuiltInModule__callableMap0(mixins, $T),
+        t4 = variables == null ? B.Map_empty13 : new A.UnmodifiableMapView(variables, type$.UnmodifiableMapView_String_Value_2);
+      return new A.BuiltInModule0(t1, t2, t3, t4, $T._eval$1("BuiltInModule0<0>"));
+    },
+    BuiltInModule__callableMap0(callables, $T) {
+      var t2, _i, callable,
+        t1 = type$.String;
+      if (callables == null)
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, $T);
+      else {
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, $T);
+        for (t2 = callables.length, _i = 0; _i < callables.length; callables.length === t2 || (0, A.throwConcurrentModificationError)(callables), ++_i) {
+          callable = callables[_i];
+          t1.$indexSet(0, J.get$name$x(callable), callable);
+        }
+        t1 = new A.UnmodifiableMapView(t1, type$.$env_1_1_String._bind$1($T)._eval$1("UnmodifiableMapView<1,2>"));
+      }
+      return new A.UnmodifiableMapView(t1, type$.$env_1_1_String._bind$1($T)._eval$1("UnmodifiableMapView<1,2>"));
+    },
+    BuiltInModule0: function BuiltInModule0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.url = t0;
+      _.functions = t1;
+      _.mixins = t2;
+      _.variables = t3;
+      _.$ti = t4;
+    },
+    _assertCalculationValue(arg) {
+      var t1;
+      $label0$0: {
+        if (!(arg instanceof A.SassNumber0))
+          t1 = arg instanceof A.SassString0 && !arg._string0$_hasQuotes || arg instanceof A.SassCalculation0 || arg instanceof A.CalculationOperation0 || arg instanceof A.CalculationInterpolation;
+        else
+          t1 = true;
+        if (t1) {
+          t1 = null;
+          break $label0$0;
+        }
+        t1 = A.jsThrow0(new self.Error("Argument `" + A.S(arg) + "` must be one of SassNumber, unquoted SassString, SassCalculation, CalculationOperation, CalculationInterpolation"));
+      }
+      return t1;
+    },
+    _isValidClampArg(arg) {
+      var t1;
+      $label0$0: {
+        if (!(arg instanceof A.CalculationInterpolation))
+          t1 = arg instanceof A.SassString0 && !arg._string0$_hasQuotes;
+        else
+          t1 = true;
+        if (t1)
+          break $label0$0;
+        break $label0$0;
+      }
+      return t1;
+    },
+    calculationClass_closure: function calculationClass_closure() {
+    },
+    calculationClass__closure: function calculationClass__closure() {
+    },
+    calculationClass__closure0: function calculationClass__closure0() {
+    },
+    calculationClass__closure1: function calculationClass__closure1() {
+    },
+    calculationClass__closure2: function calculationClass__closure2() {
+    },
+    calculationClass__closure3: function calculationClass__closure3() {
+    },
+    calculationClass__closure4: function calculationClass__closure4() {
+    },
+    calculationClass__closure5: function calculationClass__closure5() {
+    },
+    calculationOperationClass_closure: function calculationOperationClass_closure() {
+    },
+    calculationOperationClass__closure: function calculationOperationClass__closure() {
+    },
+    calculationOperationClass___closure: function calculationOperationClass___closure(t0) {
+      this.strOperator = t0;
+    },
+    calculationOperationClass__closure0: function calculationOperationClass__closure0() {
+    },
+    calculationOperationClass__closure1: function calculationOperationClass__closure1() {
+    },
+    calculationOperationClass__closure2: function calculationOperationClass__closure2() {
+    },
+    calculationOperationClass__closure3: function calculationOperationClass__closure3() {
+    },
+    calculationOperationClass__closure4: function calculationOperationClass__closure4() {
+    },
+    calculationInterpolationClass_closure: function calculationInterpolationClass_closure() {
+    },
+    calculationInterpolationClass__closure: function calculationInterpolationClass__closure() {
+    },
+    calculationInterpolationClass__closure0: function calculationInterpolationClass__closure0() {
+    },
+    calculationInterpolationClass__closure1: function calculationInterpolationClass__closure1() {
+    },
+    calculationInterpolationClass__closure2: function calculationInterpolationClass__closure2() {
+    },
+    SassCalculation_calc0(argument) {
+      var t1,
+        _0_0 = A.SassCalculation__simplify0(argument);
+      $label0$0: {
+        if (_0_0 instanceof A.SassNumber0) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassCalculation0) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        t1 = new A.SassCalculation0("calc", A.List_List$unmodifiable([_0_0], type$.Object));
+        break $label0$0;
+      }
+      return t1;
+    },
+    SassCalculation_min0($arguments) {
+      var minimum, _i, arg, t2,
+        args = A.List_List$unmodifiable(new A.MappedListIterable($arguments, A.calculation0_SassCalculation__simplify$closure(), A._arrayInstanceType($arguments)._eval$1("MappedListIterable<1,@>")), type$.Object),
+        t1 = args.length;
+      if (t1 === 0)
+        throw A.wrapException(A.ArgumentError$("min() must have at least one argument.", null));
+      for (minimum = null, _i = 0; _i < t1; ++_i) {
+        arg = args[_i];
+        if (arg instanceof A.SassNumber0)
+          t2 = minimum != null && !minimum.isComparableTo$1(arg);
+        else
+          t2 = true;
+        if (t2) {
+          minimum = null;
+          break;
+        } else if (minimum == null || minimum.greaterThan$1(arg).value)
+          minimum = arg;
+      }
+      if (minimum != null)
+        return minimum;
+      A.SassCalculation__verifyCompatibleNumbers0(args);
+      return new A.SassCalculation0("min", args);
+    },
+    SassCalculation_max0($arguments) {
+      var maximum, _i, arg, t2,
+        args = A.List_List$unmodifiable(new A.MappedListIterable($arguments, A.calculation0_SassCalculation__simplify$closure(), A._arrayInstanceType($arguments)._eval$1("MappedListIterable<1,@>")), type$.Object),
+        t1 = args.length;
+      if (t1 === 0)
+        throw A.wrapException(A.ArgumentError$("max() must have at least one argument.", null));
+      for (maximum = null, _i = 0; _i < t1; ++_i) {
+        arg = args[_i];
+        if (arg instanceof A.SassNumber0)
+          t2 = maximum != null && !maximum.isComparableTo$1(arg);
+        else
+          t2 = true;
+        if (t2) {
+          maximum = null;
+          break;
+        } else if (maximum == null || maximum.lessThan$1(arg).value)
+          maximum = arg;
+      }
+      if (maximum != null)
+        return maximum;
+      A.SassCalculation__verifyCompatibleNumbers0(args);
+      return new A.SassCalculation0("max", args);
+    },
+    SassCalculation_hypot0($arguments) {
+      var first, subtotal, i, number, value, t2, t3,
+        args = A.List_List$unmodifiable(new A.MappedListIterable($arguments, A.calculation0_SassCalculation__simplify$closure(), A._arrayInstanceType($arguments)._eval$1("MappedListIterable<1,@>")), type$.Object),
+        t1 = args.length;
+      if (t1 === 0)
+        throw A.wrapException(A.ArgumentError$("hypot() must have at least one argument.", null));
+      A.SassCalculation__verifyCompatibleNumbers0(args);
+      first = B.JSArray_methods.get$first(args);
+      if (!(first instanceof A.SassNumber0) || first.hasUnit$1("%"))
+        return new A.SassCalculation0("hypot", args);
+      for (subtotal = 0, i = 0; i < t1;) {
+        number = args[i];
+        if (!(number instanceof A.SassNumber0) || !number.hasCompatibleUnits$1(first))
+          return new A.SassCalculation0("hypot", args);
+        ++i;
+        value = number.convertValueToMatch$3(first, "numbers[" + i + "]", "numbers[1]");
+        subtotal += value * value;
+      }
+      t1 = Math.sqrt(subtotal);
+      t2 = J.getInterceptor$x(first);
+      t3 = t2.get$numeratorUnits(first);
+      return A.SassNumber_SassNumber$withUnits0(t1, t2.get$denominatorUnits(first), t3);
+    },
+    SassCalculation_abs0(argument) {
+      argument = A.SassCalculation__simplify0(argument);
+      if (!(argument instanceof A.SassNumber0))
+        return new A.SassCalculation0("abs", A._setArrayType([argument], type$.JSArray_Object));
+      if (argument.hasUnit$1("%"))
+        A.warnForDeprecation0(string$.Passinp + argument.toString$0(0) + ")\nTo emit a CSS abs() now: abs(#{" + argument.toString$0(0) + string$.x7d__Mor, B.Deprecation_jYb);
+      return A.SassNumber_SassNumber0(Math.abs(argument._number1$_value), null).coerceToMatch$1(argument);
+    },
+    SassCalculation_exp0(argument) {
+      argument = A.SassCalculation__simplify0(argument);
+      if (!(argument instanceof A.SassNumber0))
+        return new A.SassCalculation0("exp", A._setArrayType([argument], type$.JSArray_Object));
+      argument.assertNoUnits$0();
+      return A.pow1(A.SassNumber_SassNumber0(2.718281828459045, null), argument);
+    },
+    SassCalculation_sign0(argument) {
+      var t1, _0_2, t2, arg;
+      argument = A.SassCalculation__simplify0(argument);
+      $label0$0: {
+        t1 = argument instanceof A.SassNumber0;
+        if (t1) {
+          _0_2 = argument._number1$_value;
+          if (!isNaN(_0_2))
+            t2 = 0 === _0_2;
+          else
+            t2 = true;
+        } else
+          t2 = false;
+        if (t2) {
+          t1 = argument;
+          break $label0$0;
+        }
+        if (t1) {
+          t1 = !argument.hasUnit$1("%");
+          arg = argument;
+        } else {
+          arg = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = A.SassNumber_SassNumber0(J.get$sign$in(arg._number1$_value), null).coerceToMatch$1(argument);
+          break $label0$0;
+        }
+        t1 = new A.SassCalculation0("sign", A._setArrayType([argument], type$.JSArray_Object));
+        break $label0$0;
+      }
+      return t1;
+    },
+    SassCalculation_clamp0(min, value, max) {
+      var t1, args;
+      if (value == null && max != null)
+        throw A.wrapException(A.ArgumentError$("If value is null, max must also be null.", null));
+      min = A.SassCalculation__simplify0(min);
+      value = A.NullableExtension_andThen0(value, A.calculation0_SassCalculation__simplify$closure());
+      max = A.NullableExtension_andThen0(max, A.calculation0_SassCalculation__simplify$closure());
+      if (min instanceof A.SassNumber0 && value instanceof A.SassNumber0 && max instanceof A.SassNumber0 && min.hasCompatibleUnits$1(value) && min.hasCompatibleUnits$1(max)) {
+        if (value.lessThanOrEquals$1(min).value)
+          return min;
+        if (value.greaterThanOrEquals$1(max).value)
+          return max;
+        return value;
+      }
+      t1 = [min];
+      if (value != null)
+        t1.push(value);
+      if (max != null)
+        t1.push(max);
+      args = A.List_List$unmodifiable(t1, type$.Object);
+      A.SassCalculation__verifyCompatibleNumbers0(args);
+      A.SassCalculation__verifyLength0(args, 3);
+      return new A.SassCalculation0("clamp", args);
+    },
+    SassCalculation_pow0(base, exponent) {
+      var t1 = A._setArrayType([base], type$.JSArray_Object);
+      if (exponent != null)
+        t1.push(exponent);
+      A.SassCalculation__verifyLength0(t1, 2);
+      base = A.SassCalculation__simplify0(base);
+      exponent = A.NullableExtension_andThen0(exponent, A.calculation0_SassCalculation__simplify$closure());
+      if (!(base instanceof A.SassNumber0) || !(exponent instanceof A.SassNumber0))
+        return new A.SassCalculation0("pow", t1);
+      base.assertNoUnits$0();
+      exponent.assertNoUnits$0();
+      return A.pow1(base, exponent);
+    },
+    SassCalculation_log0(number, base) {
+      var t1, t2;
+      number = A.SassCalculation__simplify0(number);
+      base = A.NullableExtension_andThen0(base, A.calculation0_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([number], type$.JSArray_Object);
+      t2 = base != null;
+      if (t2)
+        t1.push(base);
+      if (number instanceof A.SassNumber0)
+        t2 = t2 && !(base instanceof A.SassNumber0);
+      else
+        t2 = true;
+      if (t2)
+        return new A.SassCalculation0("log", t1);
+      number.assertNoUnits$0();
+      if (base instanceof A.SassNumber0) {
+        base.assertNoUnits$0();
+        return A.log0(number, base);
+      }
+      return A.log0(number, null);
+    },
+    SassCalculation_atan20(y, x) {
+      var t1;
+      y = A.SassCalculation__simplify0(y);
+      x = A.NullableExtension_andThen0(x, A.calculation0_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([y], type$.JSArray_Object);
+      if (x != null)
+        t1.push(x);
+      A.SassCalculation__verifyLength0(t1, 2);
+      A.SassCalculation__verifyCompatibleNumbers0(t1);
+      if (!(y instanceof A.SassNumber0) || !(x instanceof A.SassNumber0) || y.hasUnit$1("%") || x.hasUnit$1("%") || !y.hasCompatibleUnits$1(x))
+        return new A.SassCalculation0("atan2", t1);
+      return A.SassNumber_SassNumber$withUnits0(Math.atan2(y._number1$_value, x.convertValueToMatch$3(y, "x", "y")) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    SassCalculation_rem0(dividend, modulus) {
+      var t1, result;
+      dividend = A.SassCalculation__simplify0(dividend);
+      modulus = A.NullableExtension_andThen0(modulus, A.calculation0_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([dividend], type$.JSArray_Object);
+      if (modulus != null)
+        t1.push(modulus);
+      A.SassCalculation__verifyLength0(t1, 2);
+      A.SassCalculation__verifyCompatibleNumbers0(t1);
+      if (!(dividend instanceof A.SassNumber0) || !(modulus instanceof A.SassNumber0) || !dividend.hasCompatibleUnits$1(modulus))
+        return new A.SassCalculation0("rem", t1);
+      result = dividend.modulo$1(modulus);
+      t1 = modulus._number1$_value;
+      if (A.DoubleWithSignedZero_get_signIncludingZero0(t1) !== A.DoubleWithSignedZero_get_signIncludingZero0(dividend._number1$_value)) {
+        if (t1 == 1 / 0 || t1 == -1 / 0)
+          return dividend;
+        if (result._number1$_value === 0)
+          return result.unaryMinus$0();
+        return result.minus$1(modulus);
+      }
+      return result;
+    },
+    SassCalculation_mod0(dividend, modulus) {
+      var t1;
+      dividend = A.SassCalculation__simplify0(dividend);
+      modulus = A.NullableExtension_andThen0(modulus, A.calculation0_SassCalculation__simplify$closure());
+      t1 = A._setArrayType([dividend], type$.JSArray_Object);
+      if (modulus != null)
+        t1.push(modulus);
+      A.SassCalculation__verifyLength0(t1, 2);
+      A.SassCalculation__verifyCompatibleNumbers0(t1);
+      if (!(dividend instanceof A.SassNumber0) || !(modulus instanceof A.SassNumber0) || !dividend.hasCompatibleUnits$1(modulus))
+        return new A.SassCalculation0("mod", t1);
+      return dividend.modulo$1(modulus);
+    },
+    SassCalculation_round0(strategyOrNumber, numberOrStep, step) {
+      var _0_4, _0_5_isSet, _0_20, _0_6, t1, _0_50, _0_6_isSet, number, t2, _0_2_isSet, _0_10_isSet, _0_8, _0_12_isSet, _0_12, _0_14_isSet, _0_14, _0_16_isSet, _0_16, t3, strategy, _0_8_isSet, t4, rest, _null = null, _s5_ = "round",
+        _0_1 = A.SassCalculation__simplify0(strategyOrNumber),
+        _0_2 = A.NullableExtension_andThen0(numberOrStep, A.calculation0_SassCalculation__simplify$closure()),
+        _0_5 = A.NullableExtension_andThen0(step, A.calculation0_SassCalculation__simplify$closure()),
+        _0_10 = _0_1,
+        _0_4_isSet = _0_1 instanceof A.SassNumber0;
+      if (_0_4_isSet) {
+        type$.SassNumber_2._as(_0_10);
+        _0_4 = _0_2 == null;
+        _0_5_isSet = _0_4;
+        _0_20 = _0_2;
+        if (_0_5_isSet) {
+          _0_6 = _0_5 == null;
+          t1 = _0_6;
+          _0_50 = _0_5;
+        } else {
+          _0_50 = _null;
+          _0_6 = _0_50;
+          t1 = false;
+        }
+        _0_6_isSet = _0_5_isSet;
+        number = _0_10;
+        _0_1 = number;
+      } else {
+        number = _null;
+        _0_50 = number;
+        _0_6 = _0_50;
+        _0_20 = _0_6;
+        _0_4 = _0_20;
+        _0_1 = _0_10;
+        _0_6_isSet = false;
+        _0_5_isSet = false;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = B.JSNumber_methods.round$0(number._number1$_value);
+        t2 = number.get$numeratorUnits(number);
+        return A.SassNumber_SassNumber$withUnits0(t1, number.get$denominatorUnits(number), t2);
+      }
+      if (_0_1 instanceof A.SassNumber0) {
+        if (_0_4_isSet) {
+          t1 = _0_20;
+          _0_2_isSet = _0_4_isSet;
+        } else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        if (t1 instanceof A.SassNumber0) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          type$.SassNumber_2._as(t1);
+          if (_0_6_isSet)
+            t2 = _0_6;
+          else {
+            if (_0_5_isSet)
+              t2 = _0_50;
+            else {
+              t2 = _0_5;
+              _0_50 = t2;
+              _0_5_isSet = true;
+            }
+            _0_6 = t2 == null;
+            t2 = _0_6;
+            _0_6_isSet = true;
+          }
+          t2 = t2 && !_0_1.hasCompatibleUnits$1(t1);
+          step = t1;
+          t1 = t2;
+        } else {
+          step = _null;
+          t1 = false;
+        }
+        number = _0_1;
+      } else {
+        step = _null;
+        number = step;
+        _0_2_isSet = _0_4_isSet;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = type$.JSArray_Object;
+        A.SassCalculation__verifyCompatibleNumbers0(A._setArrayType([number, step], t1));
+        return new A.SassCalculation0(_s5_, A._setArrayType([number, step], t1));
+      }
+      if (_0_1 instanceof A.SassNumber0) {
+        if (_0_2_isSet)
+          t1 = _0_20;
+        else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        if (t1 instanceof A.SassNumber0) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          type$.SassNumber_2._as(t1);
+          if (_0_6_isSet)
+            t2 = _0_6;
+          else {
+            if (_0_5_isSet)
+              t2 = _0_50;
+            else {
+              t2 = _0_5;
+              _0_50 = t2;
+              _0_5_isSet = true;
+            }
+            _0_6 = t2 == null;
+            t2 = _0_6;
+            _0_6_isSet = true;
+          }
+          step = t1;
+          t1 = t2;
+        } else {
+          step = _null;
+          t1 = false;
+        }
+        number = _0_1;
+      } else {
+        step = _null;
+        number = step;
+        t1 = false;
+      }
+      if (t1) {
+        A.SassCalculation__verifyCompatibleNumbers0(A._setArrayType([number, step], type$.JSArray_Object));
+        return A.SassCalculation__roundWithStep0("nearest", number, step);
+      }
+      _0_10_isSet = _0_1 instanceof A.SassString0;
+      if (_0_10_isSet) {
+        _0_8 = _0_1._string0$_text;
+        t1 = _0_8;
+        _0_10 = "nearest" === t1;
+        t1 = _0_10;
+        _0_12_isSet = !t1;
+        if (_0_12_isSet) {
+          _0_12 = "up" === _0_8;
+          t1 = _0_12;
+          _0_14_isSet = !t1;
+          if (_0_14_isSet) {
+            _0_14 = "down" === _0_8;
+            t1 = _0_14;
+            _0_16_isSet = !t1;
+            if (_0_16_isSet) {
+              _0_16 = "to-zero" === _0_8;
+              t1 = _0_16;
+            } else {
+              _0_16 = _null;
+              t1 = true;
+            }
+          } else {
+            _0_16 = _null;
+            _0_14 = _0_16;
+            _0_16_isSet = false;
+            t1 = true;
+          }
+        } else {
+          _0_16 = _null;
+          _0_14 = _0_16;
+          _0_12 = _0_14;
+          _0_14_isSet = false;
+          _0_16_isSet = false;
+          t1 = true;
+        }
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 instanceof A.SassNumber0) {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            t2 = type$.SassNumber_2;
+            t2._as(t1);
+            if (_0_5_isSet)
+              t3 = _0_50;
+            else {
+              t3 = _0_5;
+              _0_50 = t3;
+              _0_5_isSet = true;
+            }
+            if (t3 instanceof A.SassNumber0) {
+              if (_0_5_isSet)
+                t3 = _0_50;
+              else {
+                t3 = _0_5;
+                _0_50 = t3;
+                _0_5_isSet = true;
+              }
+              t2._as(t3);
+              t2 = !t1.hasCompatibleUnits$1(t3);
+              step = t3;
+            } else {
+              step = _null;
+              t2 = false;
+            }
+            number = t1;
+            t1 = t2;
+          } else {
+            step = _null;
+            number = step;
+            t1 = false;
+          }
+          strategy = _0_1;
+        } else {
+          step = _null;
+          number = step;
+          strategy = number;
+          t1 = false;
+        }
+      } else {
+        step = _null;
+        number = step;
+        strategy = number;
+        _0_16 = strategy;
+        _0_14 = _0_16;
+        _0_12 = _0_14;
+        _0_8 = _0_12;
+        _0_10 = _0_8;
+        _0_12_isSet = false;
+        _0_14_isSet = false;
+        _0_16_isSet = false;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = type$.JSArray_Object;
+        A.SassCalculation__verifyCompatibleNumbers0(A._setArrayType([number, step], t1));
+        return new A.SassCalculation0(_s5_, A._setArrayType([strategy, number, step], t1));
+      }
+      if (_0_1 instanceof A.SassString0) {
+        if (_0_10_isSet) {
+          t1 = _0_10;
+          _0_8_isSet = _0_10_isSet;
+        } else {
+          _0_8 = _0_1._string0$_text;
+          t1 = _0_8;
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+          _0_8_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string0$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string0$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string0$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 instanceof A.SassNumber0) {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            t2 = type$.SassNumber_2;
+            t2._as(t1);
+            if (_0_5_isSet)
+              t3 = _0_50;
+            else {
+              t3 = _0_5;
+              _0_50 = t3;
+              _0_5_isSet = true;
+            }
+            t3 = t3 instanceof A.SassNumber0;
+            if (t3) {
+              if (_0_5_isSet)
+                t4 = _0_50;
+              else {
+                t4 = _0_5;
+                _0_50 = t4;
+                _0_5_isSet = true;
+              }
+              t2._as(t4);
+              step = t4;
+            } else
+              step = _null;
+            t2 = t3;
+            number = t1;
+            t1 = t2;
+          } else {
+            step = _null;
+            number = step;
+            t1 = false;
+          }
+          strategy = _0_1;
+        } else {
+          step = _null;
+          number = step;
+          strategy = number;
+          t1 = false;
+        }
+      } else {
+        step = _null;
+        number = step;
+        strategy = number;
+        _0_8_isSet = _0_10_isSet;
+        t1 = false;
+      }
+      if (t1) {
+        A.SassCalculation__verifyCompatibleNumbers0(A._setArrayType([number, step], type$.JSArray_Object));
+        return A.SassCalculation__roundWithStep0(strategy._string0$_text, number, step);
+      }
+      if (_0_1 instanceof A.SassString0) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string0$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string0$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string0$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string0$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 instanceof A.SassString0) {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            type$.SassString_2._as(t1);
+            if (_0_6_isSet)
+              t2 = _0_6;
+            else {
+              if (_0_5_isSet)
+                t2 = _0_50;
+              else {
+                t2 = _0_5;
+                _0_50 = t2;
+                _0_5_isSet = true;
+              }
+              _0_6 = t2 == null;
+              t2 = _0_6;
+              _0_6_isSet = true;
+            }
+            rest = t1;
+            t1 = t2;
+          } else {
+            rest = _null;
+            t1 = false;
+          }
+          strategy = _0_1;
+        } else {
+          rest = _null;
+          strategy = rest;
+          t1 = false;
+        }
+      } else {
+        rest = _null;
+        strategy = rest;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation0(_s5_, A._setArrayType([strategy, rest], type$.JSArray_Object));
+      if (_0_1 instanceof A.SassString0) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string0$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string0$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string0$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string0$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          if (t1 != null)
+            if (_0_6_isSet)
+              t1 = _0_6;
+            else {
+              if (_0_5_isSet)
+                t1 = _0_50;
+              else {
+                t1 = _0_5;
+                _0_50 = t1;
+                _0_5_isSet = true;
+              }
+              _0_6 = t1 == null;
+              t1 = _0_6;
+              _0_6_isSet = true;
+            }
+          else
+            t1 = false;
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$0(string$.If_str, _null));
+      if (_0_1 instanceof A.SassString0) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string0$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+          _0_10_isSet = true;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string0$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+            _0_12_isSet = true;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string0$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+              _0_14_isSet = true;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string0$_text;
+                  t1 = _0_8;
+                  _0_8_isSet = true;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+                _0_16_isSet = true;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+        if (t1) {
+          if (_0_4_isSet)
+            t1 = _0_4;
+          else {
+            if (_0_2_isSet)
+              t1 = _0_20;
+            else {
+              t1 = _0_2;
+              _0_20 = t1;
+              _0_2_isSet = true;
+            }
+            _0_4 = t1 == null;
+            t1 = _0_4;
+            _0_4_isSet = true;
+          }
+          if (t1)
+            if (_0_6_isSet)
+              t1 = _0_6;
+            else {
+              if (_0_5_isSet)
+                t1 = _0_50;
+              else {
+                t1 = _0_5;
+                _0_50 = t1;
+                _0_5_isSet = true;
+              }
+              _0_6 = t1 == null;
+              t1 = _0_6;
+              _0_6_isSet = true;
+            }
+          else
+            t1 = false;
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$0(string$.Number, _null));
+      if (_0_1 instanceof A.SassString0) {
+        if (_0_4_isSet)
+          t1 = _0_4;
+        else {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          _0_4 = t1 == null;
+          t1 = _0_4;
+          _0_4_isSet = true;
+        }
+        if (t1)
+          if (_0_6_isSet)
+            t1 = _0_6;
+          else {
+            if (_0_5_isSet)
+              t1 = _0_50;
+            else {
+              t1 = _0_5;
+              _0_50 = t1;
+              _0_5_isSet = true;
+            }
+            _0_6 = t1 == null;
+            t1 = _0_6;
+            _0_6_isSet = true;
+          }
+        else
+          t1 = false;
+        rest = _0_1;
+      } else {
+        rest = _null;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation0(_s5_, A._setArrayType([rest], type$.JSArray_Object));
+      if (_0_4_isSet)
+        t1 = _0_4;
+      else {
+        if (_0_2_isSet)
+          t1 = _0_20;
+        else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        _0_4 = t1 == null;
+        t1 = _0_4;
+      }
+      if (t1)
+        if (_0_6_isSet)
+          t1 = _0_6;
+        else {
+          if (_0_5_isSet)
+            t1 = _0_50;
+          else {
+            t1 = _0_5;
+            _0_50 = t1;
+            _0_5_isSet = true;
+          }
+          _0_6 = t1 == null;
+          t1 = _0_6;
+          _0_6_isSet = true;
+        }
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$0("Single argument " + A.S(_0_1) + " expected to be simplifiable.", _null));
+      if (_0_2_isSet)
+        t1 = _0_20;
+      else {
+        t1 = _0_2;
+        _0_20 = t1;
+        _0_2_isSet = true;
+      }
+      if (t1 != null) {
+        if (_0_2_isSet)
+          step = _0_20;
+        else {
+          step = _0_2;
+          _0_20 = step;
+          _0_2_isSet = true;
+        }
+        if (step == null)
+          step = type$.Object._as(step);
+        if (_0_6_isSet)
+          t1 = _0_6;
+        else {
+          if (_0_5_isSet)
+            t1 = _0_50;
+          else {
+            t1 = _0_5;
+            _0_50 = t1;
+            _0_5_isSet = true;
+          }
+          _0_6 = t1 == null;
+          t1 = _0_6;
+        }
+      } else {
+        step = _null;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation0(_s5_, A._setArrayType([_0_1, step], type$.JSArray_Object));
+      if (_0_1 instanceof A.SassString0) {
+        if (_0_10_isSet)
+          t1 = _0_10;
+        else {
+          if (_0_8_isSet)
+            t1 = _0_8;
+          else {
+            _0_8 = _0_1._string0$_text;
+            t1 = _0_8;
+            _0_8_isSet = true;
+          }
+          _0_10 = "nearest" === t1;
+          t1 = _0_10;
+        }
+        if (!t1) {
+          if (_0_12_isSet)
+            t1 = _0_12;
+          else {
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = _0_1._string0$_text;
+              t1 = _0_8;
+              _0_8_isSet = true;
+            }
+            _0_12 = "up" === t1;
+            t1 = _0_12;
+          }
+          if (!t1) {
+            if (_0_14_isSet)
+              t1 = _0_14;
+            else {
+              if (_0_8_isSet)
+                t1 = _0_8;
+              else {
+                _0_8 = _0_1._string0$_text;
+                t1 = _0_8;
+                _0_8_isSet = true;
+              }
+              _0_14 = "down" === t1;
+              t1 = _0_14;
+            }
+            if (!t1)
+              if (_0_16_isSet)
+                t1 = _0_16;
+              else {
+                if (_0_8_isSet)
+                  t1 = _0_8;
+                else {
+                  _0_8 = _0_1._string0$_text;
+                  t1 = _0_8;
+                }
+                _0_16 = "to-zero" === t1;
+                t1 = _0_16;
+              }
+            else
+              t1 = true;
+          } else
+            t1 = true;
+        } else
+          t1 = true;
+      } else
+        t1 = false;
+      if (!t1)
+        if (_0_1 instanceof A.SassString0)
+          t1 = _0_1.get$isVar();
+        else
+          t1 = false;
+      else
+        t1 = true;
+      if (t1) {
+        type$.SassString_2._as(_0_1);
+        if (_0_2_isSet)
+          t1 = _0_20;
+        else {
+          t1 = _0_2;
+          _0_20 = t1;
+          _0_2_isSet = true;
+        }
+        if (t1 != null) {
+          if (_0_2_isSet)
+            number = _0_20;
+          else {
+            number = _0_2;
+            _0_20 = number;
+            _0_2_isSet = true;
+          }
+          if (number == null)
+            number = type$.Object._as(number);
+          if (_0_5_isSet)
+            t1 = _0_50;
+          else {
+            t1 = _0_5;
+            _0_50 = t1;
+            _0_5_isSet = true;
+          }
+          t1 = t1 != null;
+          if (t1) {
+            if (_0_5_isSet)
+              step = _0_50;
+            else {
+              step = _0_5;
+              _0_50 = step;
+              _0_5_isSet = true;
+            }
+            if (step == null)
+              step = type$.Object._as(step);
+          } else
+            step = _null;
+        } else {
+          step = _null;
+          number = step;
+          t1 = false;
+        }
+        strategy = _0_1;
+      } else {
+        step = _null;
+        number = step;
+        strategy = number;
+        t1 = false;
+      }
+      if (t1)
+        return new A.SassCalculation0(_s5_, A._setArrayType([strategy, number, step], type$.JSArray_Object));
+      if ((_0_2_isSet ? _0_20 : _0_2) != null)
+        t1 = (_0_5_isSet ? _0_50 : _0_5) != null;
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$0(A.S(strategyOrNumber) + string$.x20must_b, _null));
+      t1 = A.SassScriptException$0("Invalid parameters.", _null);
+      throw A.wrapException(t1);
+    },
+    SassCalculation_operateInternal0(operator, left, right, inLegacySassFunction, simplify) {
+      var t1;
+      if (!simplify)
+        return new A.CalculationOperation0(operator, left, right);
+      left = A.SassCalculation__simplify0(left);
+      right = A.SassCalculation__simplify0(right);
+      if (B.CalculationOperator_g2q0 === operator || B.CalculationOperator_CxF0 === operator) {
+        if (left instanceof A.SassNumber0)
+          if (right instanceof A.SassNumber0)
+            t1 = inLegacySassFunction ? left.isComparableTo$1(right) : left.hasCompatibleUnits$1(right);
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1)
+          return operator === B.CalculationOperator_g2q0 ? left.plus$1(right) : left.minus$1(right);
+        A.SassCalculation__verifyCompatibleNumbers0(A._setArrayType([left, right], type$.JSArray_Object));
+        if (right instanceof A.SassNumber0) {
+          t1 = right._number1$_value;
+          t1 = t1 < 0 && !A.fuzzyEquals0(t1, 0);
+        } else
+          t1 = false;
+        if (t1) {
+          right = right.times$1(A.SassNumber_SassNumber0(-1, null));
+          operator = operator === B.CalculationOperator_g2q0 ? B.CalculationOperator_CxF0 : B.CalculationOperator_g2q0;
+        }
+        return new A.CalculationOperation0(operator, left, right);
+      } else if (left instanceof A.SassNumber0 && right instanceof A.SassNumber0)
+        return operator === B.CalculationOperator_1710 ? left.times$1(right) : left.dividedBy$1(right);
+      else
+        return new A.CalculationOperation0(operator, left, right);
+    },
+    SassCalculation__roundWithStep0(strategy, number, step) {
+      var _0_2, t1, _0_6, _0_8_isSet, _0_8, _0_9_isSet, _0_9, _0_11, _0_13, stepWithNumberUnit, t2, _null = null;
+      if (!A.LinkedHashSet_LinkedHashSet$_literal(["nearest", "up", "down", "to-zero"], type$.String).contains$1(0, strategy))
+        throw A.wrapException(A.ArgumentError$(strategy + string$.x20must_b, _null));
+      _0_2 = number._number1$_value;
+      if (_0_2 == 1 / 0 || _0_2 == -1 / 0) {
+        t1 = step._number1$_value;
+        t1 = t1 == 1 / 0 || t1 == -1 / 0;
+      } else
+        t1 = false;
+      if (!t1) {
+        t1 = step._number1$_value;
+        t1 = t1 === 0 || isNaN(_0_2) || isNaN(t1);
+      } else
+        t1 = true;
+      if (t1) {
+        t1 = number.get$numeratorUnits(number);
+        return A.SassNumber_SassNumber$withUnits0(0 / 0, number.get$denominatorUnits(number), t1);
+      }
+      if (_0_2 == 1 / 0 || _0_2 == -1 / 0)
+        return number;
+      t1 = step._number1$_value;
+      if (t1 == 1 / 0 || t1 == -1 / 0) {
+        $label0$0: {
+          if (0 === _0_2) {
+            t1 = number;
+            break $label0$0;
+          }
+          _0_6 = "nearest" === strategy;
+          t1 = _0_6;
+          _0_8_isSet = !t1;
+          if (_0_8_isSet) {
+            _0_8 = "to-zero" === strategy;
+            _0_9_isSet = _0_8;
+          } else {
+            _0_8 = _null;
+            _0_9_isSet = true;
+          }
+          if (_0_9_isSet) {
+            _0_9 = _0_2 > 0;
+            t1 = _0_9;
+          } else {
+            _0_9 = _null;
+            t1 = false;
+          }
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits0(0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          if (!_0_6)
+            if (_0_8_isSet)
+              t1 = _0_8;
+            else {
+              _0_8 = "to-zero" === strategy;
+              t1 = _0_8;
+            }
+          else
+            t1 = true;
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits0(-0.0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          _0_11 = "up" === strategy;
+          t1 = _0_11;
+          if (t1)
+            if (_0_9_isSet)
+              t1 = _0_9;
+            else {
+              _0_9 = _0_2 > 0;
+              t1 = _0_9;
+            }
+          else
+            t1 = false;
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits0(1 / 0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          if (_0_11) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits0(-0.0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          _0_13 = "down" === strategy;
+          t1 = _0_13;
+          if (t1)
+            t1 = _0_2 < 0;
+          else
+            t1 = false;
+          if (t1) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits0(-1 / 0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          if (_0_13) {
+            t1 = number.get$numeratorUnits(number);
+            t1 = A.SassNumber_SassNumber$withUnits0(0, number.get$denominatorUnits(number), t1);
+            break $label0$0;
+          }
+          t1 = A.throwExpression(A.UnsupportedError$("Invalid argument: " + strategy + "."));
+        }
+        return t1;
+      }
+      stepWithNumberUnit = step.convertValueToMatch$1(number);
+      $label1$1: {
+        if ("nearest" === strategy) {
+          t1 = B.JSNumber_methods.round$0(_0_2 / stepWithNumberUnit);
+          t2 = number.get$numeratorUnits(number);
+          t2 = A.SassNumber_SassNumber$withUnits0(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+          t1 = t2;
+          break $label1$1;
+        }
+        if ("up" === strategy) {
+          t2 = _0_2 / stepWithNumberUnit;
+          t1 = t1 < 0 ? B.JSNumber_methods.floor$0(t2) : B.JSNumber_methods.ceil$0(t2);
+          t2 = number.get$numeratorUnits(number);
+          t2 = A.SassNumber_SassNumber$withUnits0(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+          t1 = t2;
+          break $label1$1;
+        }
+        if ("down" === strategy) {
+          t2 = _0_2 / stepWithNumberUnit;
+          t1 = t1 < 0 ? B.JSNumber_methods.ceil$0(t2) : B.JSNumber_methods.floor$0(t2);
+          t2 = number.get$numeratorUnits(number);
+          t2 = A.SassNumber_SassNumber$withUnits0(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+          t1 = t2;
+          break $label1$1;
+        }
+        if ("to-zero" === strategy) {
+          t1 = _0_2 / stepWithNumberUnit;
+          if (_0_2 < 0) {
+            t1 = B.JSNumber_methods.ceil$0(t1);
+            t2 = number.get$numeratorUnits(number);
+            t2 = A.SassNumber_SassNumber$withUnits0(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+            t1 = t2;
+          } else {
+            t1 = B.JSNumber_methods.floor$0(t1);
+            t2 = number.get$numeratorUnits(number);
+            t2 = A.SassNumber_SassNumber$withUnits0(t1 * stepWithNumberUnit, number.get$denominatorUnits(number), t2);
+            t1 = t2;
+          }
+          break $label1$1;
+        }
+        t1 = number.get$numeratorUnits(number);
+        t1 = A.SassNumber_SassNumber$withUnits0(0 / 0, number.get$denominatorUnits(number), t1);
+        break $label1$1;
+      }
+      return t1;
+    },
+    SassCalculation__simplify0(arg) {
+      var t1, _0_11_isSet, _0_11, _0_12, _0_15, _0_16_isSet, _0_16, text, _0_12_isSet, _0_15_isSet, value, _null = null,
+        _s32_ = " can't be used in a calculation.";
+      $label0$0: {
+        if (arg instanceof A.SassNumber0 || arg instanceof A.CalculationOperation0) {
+          t1 = arg;
+          break $label0$0;
+        }
+        if (arg instanceof A.CalculationInterpolation) {
+          t1 = new A.SassString0("(" + arg._calculation0$_value + ")", false);
+          break $label0$0;
+        }
+        t1 = arg instanceof A.SassString0;
+        if (t1 && !arg._string0$_hasQuotes) {
+          t1 = arg;
+          break $label0$0;
+        }
+        if (t1)
+          A.throwExpression(A.SassScriptException$0("Quoted string " + arg.toString$0(0) + _s32_, _null));
+        _0_11_isSet = arg instanceof A.SassCalculation0;
+        if (_0_11_isSet) {
+          _0_11 = "calc" === arg.name;
+          if (_0_11) {
+            _0_12 = arg.$arguments;
+            _0_15 = _0_12.length === 1;
+            _0_16_isSet = _0_15;
+            if (_0_16_isSet) {
+              _0_16 = _0_12[0];
+              t1 = _0_16;
+              if (t1 instanceof A.SassString0) {
+                type$.SassString_2._as(_0_16);
+                if (!_0_16._string0$_hasQuotes) {
+                  text = _0_16._string0$_text;
+                  t1 = A.SassCalculation__needsParentheses0(text);
+                } else {
+                  text = _null;
+                  t1 = false;
+                }
+              } else {
+                text = _null;
+                t1 = false;
+              }
+            } else {
+              text = _null;
+              _0_16 = text;
+              t1 = false;
+            }
+          } else {
+            text = _null;
+            _0_16 = text;
+            _0_12 = _0_16;
+            _0_15 = _0_12;
+            _0_16_isSet = false;
+            t1 = false;
+          }
+          _0_12_isSet = _0_11;
+          _0_15_isSet = _0_12_isSet;
+        } else {
+          text = _null;
+          _0_16 = text;
+          _0_12 = _0_16;
+          _0_15 = _0_12;
+          _0_11 = _0_15;
+          _0_15_isSet = false;
+          _0_12_isSet = false;
+          _0_16_isSet = false;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = new A.SassString0("(" + A.S(text) + ")", false);
+          break $label0$0;
+        }
+        if (_0_11_isSet)
+          if (_0_11)
+            if (_0_15_isSet)
+              t1 = _0_15;
+            else {
+              if (_0_12_isSet)
+                t1 = _0_12;
+              else {
+                _0_12 = arg.$arguments;
+                t1 = _0_12;
+                _0_12_isSet = true;
+              }
+              _0_15 = t1.length === 1;
+              t1 = _0_15;
+            }
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1) {
+          if (_0_16_isSet)
+            value = _0_16;
+          else {
+            _0_16 = (_0_12_isSet ? _0_12 : arg.$arguments)[0];
+            value = _0_16;
+          }
+          t1 = value;
+          break $label0$0;
+        }
+        if (_0_11_isSet) {
+          t1 = arg;
+          break $label0$0;
+        }
+        if (arg instanceof A.Value0)
+          A.throwExpression(A.SassScriptException$0("Value " + arg.toString$0(0) + _s32_, _null));
+        t1 = A.throwExpression(A.ArgumentError$("Unexpected calculation argument " + A.S(arg) + ".", _null));
+      }
+      return t1;
+    },
+    SassCalculation__needsParentheses0(text) {
+      var t1, couldBeVar, second, third, fourth, i, t2,
+        first = text.charCodeAt(0);
+      if (first === 32 || first === 9 || first === 10 || first === 13 || first === 12 || first === 47 || first === 42)
+        return true;
+      t1 = text.length;
+      couldBeVar = t1 >= 4 && A.characterEqualsIgnoreCase0(first, 118);
+      if (t1 < 2)
+        return false;
+      second = text.charCodeAt(1);
+      if (second === 32 || second === 9 || second === 10 || second === 13 || second === 12 || second === 47 || second === 42)
+        return true;
+      couldBeVar = couldBeVar && A.characterEqualsIgnoreCase0(second, 97);
+      if (t1 < 3)
+        return false;
+      third = text.charCodeAt(2);
+      if (third === 32 || third === 9 || third === 10 || third === 13 || third === 12 || third === 47 || third === 42)
+        return true;
+      couldBeVar = couldBeVar && A.characterEqualsIgnoreCase0(third, 114);
+      if (t1 < 4)
+        return false;
+      fourth = text.charCodeAt(3);
+      if (couldBeVar && fourth === 40)
+        return true;
+      if (fourth === 32 || fourth === 9 || fourth === 10 || fourth === 13 || fourth === 12 || fourth === 47 || fourth === 42)
+        return true;
+      for (i = 4; i < t1; ++i) {
+        t2 = text.charCodeAt(i);
+        if (t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12 || t2 === 47 || t2 === 42)
+          return true;
+      }
+      return false;
+    },
+    SassCalculation__verifyCompatibleNumbers0(args) {
+      var t1, _i, t2, arg, i, number1, j, number2;
+      for (t1 = args.length, _i = 0; t2 = args.length, _i < t2; args.length === t1 || (0, A.throwConcurrentModificationError)(args), ++_i) {
+        arg = args[_i];
+        if (arg instanceof A.SassNumber0 && arg.get$hasComplexUnits())
+          throw A.wrapException(A.SassScriptException$0("Number " + A.S(arg) + " isn't compatible with CSS calculations.", null));
+      }
+      for (t1 = t2, i = 0; i < t1 - 1; ++i) {
+        number1 = args[i];
+        if (!(number1 instanceof A.SassNumber0))
+          continue;
+        for (j = i + 1; t1 = args.length, j < t1; ++j) {
+          number2 = args[j];
+          if (!(number2 instanceof A.SassNumber0))
+            continue;
+          if (number1.hasPossiblyCompatibleUnits$1(number2))
+            continue;
+          throw A.wrapException(A.SassScriptException$0(number1.toString$0(0) + " and " + number2.toString$0(0) + " are incompatible.", null));
+        }
+      }
+    },
+    SassCalculation__verifyLength0(args, expectedLength) {
+      var t1;
+      if (args.length === expectedLength)
+        return;
+      if (B.JSArray_methods.any$1(args, new A.SassCalculation__verifyLength_closure0()))
+        return;
+      t1 = args.length;
+      throw A.wrapException(A.SassScriptException$0("" + expectedLength + " arguments required, but only " + t1 + " " + A.pluralize0("was", t1, "were") + " passed.", null));
+    },
+    SassCalculation__singleArgument0($name, argument, mathFunc, forbidUnits) {
+      argument = A.SassCalculation__simplify0(argument);
+      if (!(argument instanceof A.SassNumber0))
+        return new A.SassCalculation0($name, A._setArrayType([argument], type$.JSArray_Object));
+      if (forbidUnits)
+        argument.assertNoUnits$0();
+      return mathFunc.call$1(argument);
+    },
+    SassCalculation0: function SassCalculation0(t0, t1) {
+      this.name = t0;
+      this.$arguments = t1;
+    },
+    SassCalculation__verifyLength_closure0: function SassCalculation__verifyLength_closure0() {
+    },
+    CalculationOperation0: function CalculationOperation0(t0, t1, t2) {
+      this._calculation0$_operator = t0;
+      this._calculation0$_left = t1;
+      this._calculation0$_right = t2;
+    },
+    CalculationOperator0: function CalculationOperator0(t0, t1, t2, t3) {
+      var _ = this;
+      _.name = t0;
+      _.operator = t1;
+      _.precedence = t2;
+      _._name = t3;
+    },
+    CalculationInterpolation: function CalculationInterpolation(t0) {
+      this._calculation0$_value = t0;
+    },
+    CallableDeclaration0: function CallableDeclaration0() {
+    },
+    updateCanonicalizeContextPrototype() {
+      var t1 = type$.JSClass._as(new A.CanonicalizeContext0(false, null).constructor);
+      A.LinkedHashMap_LinkedHashMap$_literal(["fromImport", new A.updateCanonicalizeContextPrototype_closure(), "containingUrl", new A.updateCanonicalizeContextPrototype_closure0()], type$.String, type$.Function).forEach$1(0, A.JSClassExtension_get_defineGetter(t1));
+      return null;
+    },
+    updateCanonicalizeContextPrototype_closure: function updateCanonicalizeContextPrototype_closure() {
+    },
+    updateCanonicalizeContextPrototype_closure0: function updateCanonicalizeContextPrototype_closure0() {
+    },
+    CanonicalizeContext0: function CanonicalizeContext0(t0, t1) {
+      this._canonicalize_context$_fromImport = t0;
+      this._canonicalize_context$_containingUrl = t1;
+      this._canonicalize_context$_wasContainingUrlAccessed = false;
+    },
+    Chokidar0: function Chokidar0() {
+    },
+    ChokidarOptions0: function ChokidarOptions0() {
+    },
+    ChokidarWatcher0: function ChokidarWatcher0() {
+    },
+    ClassSelector0: function ClassSelector0(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    cloneCssStylesheet0(stylesheet, extensionStore) {
+      var _0_0 = extensionStore.clone$0();
+      return new A._Record_2(new A._CloneCssVisitor0(_0_0._1)._clone_css$_visitChildren$2(A.ModifiableCssStylesheet$0(stylesheet.get$span(stylesheet)), stylesheet), _0_0._0);
+    },
+    _CloneCssVisitor0: function _CloneCssVisitor0(t0) {
+      this._clone_css$_oldToNewSelectors = t0;
+    },
+    ColorExpression0: function ColorExpression0(t0, t1) {
+      this.value = t0;
+      this.span = t1;
+    },
+    _updateComponents0($arguments, adjust, change, scale) {
+      var keywords, alpha, red, green, blue, hue, saturation, lightness, whiteness, blackness, hasRgb, hasSL, hasWB, t2, t3, t4, _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        argumentList = type$.SassArgumentList_2._as(t1.$index($arguments, 1));
+      if (argumentList._list1$_contents.length !== 0)
+        throw A.wrapException(A.SassScriptException$0(string$.Only_op, _null));
+      argumentList._argument_list$_wereKeywordsAccessed = true;
+      keywords = A.LinkedHashMap_LinkedHashMap$of(argumentList._argument_list$_keywords, type$.String, type$.Value_2);
+      t1 = new A._updateComponents_getParam0(keywords, scale, change);
+      alpha = t1.call$3$checkUnitless("alpha", 1, true);
+      red = t1.call$2("red", 255);
+      green = t1.call$2("green", 255);
+      blue = t1.call$2("blue", 255);
+      hue = scale ? _null : A.NullableExtension_andThen0(keywords.remove$1(0, "hue"), new A._updateComponents_closure1());
+      saturation = t1.call$3$checkPercent("saturation", 100, true);
+      lightness = t1.call$3$checkPercent("lightness", 100, true);
+      whiteness = t1.call$3$assertPercent("whiteness", 100, true);
+      blackness = t1.call$3$assertPercent("blackness", 100, true);
+      t1 = keywords.__js_helper$_length;
+      if (t1 !== 0)
+        throw A.wrapException(A.SassScriptException$0("No " + A.pluralize0("argument", t1, _null) + " named " + A.toSentence0(keywords.get$keys(0).map$1$1(0, new A._updateComponents_closure2(), type$.Object), "or") + ".", _null));
+      hasRgb = red != null || green != null || blue != null;
+      hasSL = saturation != null || lightness != null;
+      hasWB = whiteness != null || blackness != null;
+      if (hasRgb)
+        t1 = hasSL || hasWB || hue != null;
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.SassScriptException$0(string$.RGB_pa + (hasWB ? "HWB" : "HSL") + " parameters.", _null));
+      if (hasSL && hasWB)
+        throw A.wrapException(A.SassScriptException$0(string$.HSL_pa, _null));
+      t1 = new A._updateComponents_updateValue0(change, adjust);
+      t2 = new A._updateComponents_updateRgb0(t1);
+      if (hasRgb) {
+        t3 = t2.call$2(color.get$red(0), red);
+        t4 = t2.call$2(color.get$green(0), green);
+        t2 = t2.call$2(color.get$blue(0), blue);
+        return color.changeRgb$4$alpha$blue$green$red(t1.call$3(color._color1$_alpha, alpha, 1), t2, t4, t3);
+      } else if (hasWB) {
+        if (change)
+          t2 = hue;
+        else {
+          t2 = color.get$hue(0);
+          t2 += hue == null ? 0 : hue;
+        }
+        t3 = t1.call$3(color.get$whiteness(0), whiteness, 100);
+        t4 = t1.call$3(color.get$blackness(0), blackness, 100);
+        return color.changeHwb$4$alpha$blackness$hue$whiteness(t1.call$3(color._color1$_alpha, alpha, 1), t4, t2, t3);
+      } else {
+        t2 = hue == null;
+        if (!t2 || hasSL) {
+          if (change)
+            t2 = hue;
+          else {
+            t3 = color.get$hue(0);
+            t3 += t2 ? 0 : hue;
+            t2 = t3;
+          }
+          t3 = t1.call$3(color.get$saturation(0), saturation, 100);
+          t4 = t1.call$3(color.get$lightness(0), lightness, 100);
+          return color.changeHsl$4$alpha$hue$lightness$saturation(t1.call$3(color._color1$_alpha, alpha, 1), t2, t4, t3);
+        } else if (alpha != null)
+          return color.changeAlpha$1(t1.call$3(color._color1$_alpha, alpha, 1));
+        else
+          return color;
+      }
+    },
+    _functionString0($name, $arguments) {
+      return new A.SassString0($name + "(" + J.map$1$1$ax($arguments, new A._functionString_closure0(), type$.String).join$1(0, ", ") + ")", false);
+    },
+    _removedColorFunction0($name, argument, negative) {
+      return A.BuiltInCallable$function0($name, "$color, $amount", new A._removedColorFunction_closure0($name, argument, negative), "sass:color");
+    },
+    _rgb0($name, $arguments) {
+      var t2, red, green, blue, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        alpha = t1.get$length($arguments) > 3 ? t1.$index($arguments, 3) : null;
+      if (!t1.$index($arguments, 0).get$isSpecialNumber())
+        if (!t1.$index($arguments, 1).get$isSpecialNumber())
+          if (!t1.$index($arguments, 2).get$isSpecialNumber()) {
+            t2 = alpha == null ? null : alpha.get$isSpecialNumber();
+            t2 = t2 === true;
+          } else
+            t2 = true;
+        else
+          t2 = true;
+      else
+        t2 = true;
+      if (t2)
+        return A._functionString0($name, $arguments);
+      red = t1.$index($arguments, 0).assertNumber$1("red");
+      green = t1.$index($arguments, 1).assertNumber$1("green");
+      blue = t1.$index($arguments, 2).assertNumber$1("blue");
+      t1 = A.fuzzyRound0(A._percentageOrUnitless0(red, 255, "red"));
+      t2 = A.fuzzyRound0(A._percentageOrUnitless0(green, 255, "green"));
+      t3 = A.fuzzyRound0(A._percentageOrUnitless0(blue, 255, "blue"));
+      t4 = A.NullableExtension_andThen0(alpha, new A._rgb_closure0());
+      return A.SassColor$rgbInternal0(t1, t2, t3, t4 == null ? 1 : t4, B._ColorFormatEnum_rgbFunction0);
+    },
+    _rgbTwoArg0($name, $arguments) {
+      var t2, color,
+        t1 = J.getInterceptor$asx($arguments);
+      if (!t1.$index($arguments, 0).get$isVar())
+        t2 = !(t1.$index($arguments, 0) instanceof A.SassColor0) && t1.$index($arguments, 1).get$isVar();
+      else
+        t2 = true;
+      if (t2)
+        return A._functionString0($name, $arguments);
+      else if (t1.$index($arguments, 1).get$isSpecialNumber()) {
+        color = t1.$index($arguments, 0).assertColor$1("color");
+        return new A.SassString0($name + "(" + color.get$red(0) + ", " + color.get$green(0) + ", " + color.get$blue(0) + ", " + A.serializeValue0(t1.$index($arguments, 1), false, true) + ")", false);
+      }
+      return t1.$index($arguments, 0).assertColor$1("color").changeAlpha$1(A._percentageOrUnitless0(t1.$index($arguments, 1).assertNumber$1("alpha"), 1, "alpha"));
+    },
+    _hsl0($name, $arguments) {
+      var t2, hue, saturation, lightness, t3,
+        _s10_ = "saturation",
+        _s9_ = "lightness",
+        t1 = J.getInterceptor$asx($arguments),
+        alpha = t1.get$length($arguments) > 3 ? t1.$index($arguments, 3) : null;
+      if (!t1.$index($arguments, 0).get$isSpecialNumber())
+        if (!t1.$index($arguments, 1).get$isSpecialNumber())
+          if (!t1.$index($arguments, 2).get$isSpecialNumber()) {
+            t2 = alpha == null ? null : alpha.get$isSpecialNumber();
+            t2 = t2 === true;
+          } else
+            t2 = true;
+        else
+          t2 = true;
+      else
+        t2 = true;
+      if (t2)
+        return A._functionString0($name, $arguments);
+      hue = A._angleValue0(t1.$index($arguments, 0), "hue");
+      saturation = t1.$index($arguments, 1).assertNumber$1(_s10_);
+      lightness = t1.$index($arguments, 2).assertNumber$1(_s9_);
+      A._checkPercent0(saturation, _s10_);
+      A._checkPercent0(lightness, _s9_);
+      t1 = B.JSNumber_methods.clamp$2(saturation._number1$_value, 0, 100);
+      t2 = B.JSNumber_methods.clamp$2(lightness._number1$_value, 0, 100);
+      t3 = A.NullableExtension_andThen0(alpha, new A._hsl_closure0());
+      return A.SassColor$hslInternal0(hue, t1, t2, t3 == null ? 1 : t3, B._ColorFormatEnum_hslFunction0);
+    },
+    _angleValue0(angleValue, $name) {
+      var angle = angleValue.assertNumber$1($name);
+      if (angle.compatibleWithUnit$1("deg"))
+        return angle.coerceValueToUnit$1("deg");
+      A.warnForDeprecation0("$" + $name + ": Passing a unit other than deg (" + angle.toString$0(0) + string$.x29x20is_d + angle.unitSuggestion$1($name) + string$.x0a_See_, B.Deprecation_oCX);
+      return angle._number1$_value;
+    },
+    _checkPercent0(number, $name) {
+      if (number.hasUnit$1("%"))
+        return;
+      A.warnForDeprecation0("$" + $name + ": Passing a number without unit % (" + number.toString$0(0) + string$.x29x20is_d + number.unitSuggestion$2($name, "%") + string$.x0a_Morex3a, B.Deprecation_oCX);
+    },
+    _hwb0($arguments) {
+      var t2, t3,
+        _s9_ = "whiteness",
+        _s9_0 = "blackness",
+        t1 = J.getInterceptor$asx($arguments),
+        alpha = t1.get$length($arguments) > 3 ? t1.$index($arguments, 3) : null,
+        hue = A._angleValue0(t1.$index($arguments, 0), "hue"),
+        whiteness = t1.$index($arguments, 1).assertNumber$1(_s9_),
+        blackness = t1.$index($arguments, 2).assertNumber$1(_s9_0);
+      whiteness.assertUnit$2("%", _s9_);
+      blackness.assertUnit$2("%", _s9_0);
+      t1 = whiteness.valueInRange$3(0, 100, _s9_);
+      t2 = blackness.valueInRange$3(0, 100, _s9_0);
+      t3 = A.NullableExtension_andThen0(alpha, new A._hwb_closure0());
+      return A.SassColor_SassColor$hwb0(hue, t1, t2, t3 == null ? 1 : t3);
+    },
+    _parseChannels0($name, argumentNames, channels) {
+      var list, t1, channels0, alphaFromSlashList, isCommaSeparated, isBracketed, buffer, _0_4, _1_0, _1_2_isSet, _1_2, t2, _null = null,
+        _s17_ = "$channels must be";
+      if (channels.get$isVar())
+        return A._functionString0($name, A._setArrayType([channels], type$.JSArray_Value_2));
+      if (channels.get$separator(channels) === B.ListSeparator_cQA0) {
+        list = channels.get$asList();
+        t1 = list.length;
+        if (t1 !== 2)
+          throw A.wrapException(A.SassScriptException$0(string$.Only_2 + t1 + " " + A.pluralize0("was", t1, "were") + " passed.", _null));
+        channels0 = list[0];
+        alphaFromSlashList = list[1];
+        if (!alphaFromSlashList.get$isSpecialNumber())
+          alphaFromSlashList.assertNumber$1("alpha");
+        if (list[0].get$isVar())
+          return A._functionString0($name, A._setArrayType([channels], type$.JSArray_Value_2));
+      } else {
+        alphaFromSlashList = _null;
+        channels0 = channels;
+      }
+      isCommaSeparated = channels0.get$separator(channels0) === B.ListSeparator_ECn0;
+      isBracketed = channels0.get$hasBrackets();
+      if (isCommaSeparated || isBracketed) {
+        buffer = new A.StringBuffer(_s17_);
+        if (isBracketed) {
+          t1 = _s17_ + " an unbracketed";
+          buffer._contents = t1;
+        } else
+          t1 = _s17_;
+        if (isCommaSeparated) {
+          t1 += isBracketed ? "," : " a";
+          buffer._contents = t1;
+          t1 = buffer._contents = t1 + " space-separated";
+        }
+        buffer._contents = t1 + " list.";
+        throw A.wrapException(A.SassScriptException$0(buffer.toString$0(0), _null));
+      }
+      list = channels0.get$asList();
+      if (list.length >= 2) {
+        _0_4 = list[0];
+        t1 = _0_4;
+        if (t1 instanceof A.SassString0) {
+          type$.SassString_2._as(_0_4);
+          t1 = !_0_4._string0$_hasQuotes && A.equalsIgnoreCase0(_0_4._string0$_text, "from");
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        return A._functionString0($name, A._setArrayType([channels], type$.JSArray_Value_2));
+      t1 = list.length;
+      if (t1 > 3)
+        throw A.wrapException(A.SassScriptException$0("Only 3 elements allowed, but " + t1 + " were passed.", _null));
+      else if (t1 < 3) {
+        if (!B.JSArray_methods.any$1(list, new A._parseChannels_closure0()))
+          if (list.length !== 0) {
+            t1 = B.JSArray_methods.get$last(list);
+            if (t1 instanceof A.SassString0)
+              if (t1._string0$_hasQuotes) {
+                t1 = t1._string0$_text;
+                t1 = A.startsWithIgnoreCase0(t1, "var(") && B.JSString_methods.contains$1(t1, "/");
+              } else
+                t1 = false;
+            else
+              t1 = false;
+          } else
+            t1 = false;
+        else
+          t1 = true;
+        if (t1)
+          return A._functionString0($name, A._setArrayType([channels], type$.JSArray_Value_2));
+        else
+          throw A.wrapException(A.SassScriptException$0("Missing element " + argumentNames[list.length] + ".", _null));
+      }
+      if (alphaFromSlashList != null) {
+        t1 = A.List_List$of(list, true, type$.Value_2);
+        t1.push(alphaFromSlashList);
+        return t1;
+      }
+      _1_0 = list[2];
+      $label0$0: {
+        _1_2_isSet = _1_0 instanceof A.SassNumber0;
+        if (_1_2_isSet) {
+          _1_2 = _1_0.asSlash;
+          t1 = type$.Record_2_nullable_Object_and_nullable_Object._is(_1_2);
+        } else {
+          _1_2 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          if (_1_2_isSet)
+            t1 = _1_2;
+          else {
+            _1_2 = _1_0.asSlash;
+            t1 = _1_2;
+            _1_2_isSet = true;
+          }
+          if (t1 == null)
+            t1 = type$.Record_2_nullable_Object_and_nullable_Object._as(t1);
+          t2 = _1_2_isSet ? _1_2 : _1_0.asSlash;
+          if (t2 == null)
+            t2 = type$.Record_2_nullable_Object_and_nullable_Object._as(t2);
+          t2 = A._setArrayType([list[0], list[1], t1._0, t2._1], type$.JSArray_Value_2);
+          t1 = t2;
+          break $label0$0;
+        }
+        if (_1_0 instanceof A.SassString0)
+          if (!_1_0._string0$_hasQuotes)
+            t1 = B.JSString_methods.contains$1(_1_0._string0$_text, "/");
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1) {
+          t1 = A._functionString0($name, A._setArrayType([channels0], type$.JSArray_Value_2));
+          break $label0$0;
+        }
+        t1 = list;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _percentageOrUnitless0(number, max, $name) {
+      var value;
+      if (!number.get$hasUnits())
+        value = number._number1$_value;
+      else if (number.hasUnit$1("%"))
+        value = max * number._number1$_value / 100;
+      else
+        throw A.wrapException(A.SassScriptException$0("$" + $name + ": Expected " + number.toString$0(0) + ' to have unit "%" or no units.', null));
+      return B.JSNumber_methods.clamp$2(value, 0, max);
+    },
+    _mixColors0(color1, color2, weight) {
+      var weightScale, normalizedWeight, t1, t2, alphaDistance, t3, weight1, weight2;
+      A._checkPercent0(weight, "weight");
+      weightScale = weight.valueInRange$3(0, 100, "weight") / 100;
+      normalizedWeight = weightScale * 2 - 1;
+      t1 = color1._color1$_alpha;
+      t2 = color2._color1$_alpha;
+      alphaDistance = t1 - t2;
+      t3 = normalizedWeight * alphaDistance;
+      weight1 = ((t3 === -1 ? normalizedWeight : (normalizedWeight + alphaDistance) / (1 + t3)) + 1) / 2;
+      weight2 = 1 - weight1;
+      return A.SassColor$rgb0(A.fuzzyRound0(color1.get$red(0) * weight1 + color2.get$red(0) * weight2), A.fuzzyRound0(color1.get$green(0) * weight1 + color2.get$green(0) * weight2), A.fuzzyRound0(color1.get$blue(0) * weight1 + color2.get$blue(0) * weight2), t1 * weightScale + t2 * (1 - weightScale));
+    },
+    _opacify0($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color");
+      return color.changeAlpha$1(B.JSNumber_methods.clamp$2(color._color1$_alpha + t1.$index($arguments, 1).assertNumber$1("amount").valueInRangeWithUnit$4(0, 1, "amount", ""), 0, 1));
+    },
+    _transparentize0($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color");
+      return color.changeAlpha$1(B.JSNumber_methods.clamp$2(color._color1$_alpha - t1.$index($arguments, 1).assertNumber$1("amount").valueInRangeWithUnit$4(0, 1, "amount", ""), 0, 1));
+    },
+    _function11($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:color");
+    },
+    global_closure32: function global_closure32() {
+    },
+    global_closure33: function global_closure33() {
+    },
+    global_closure34: function global_closure34() {
+    },
+    global_closure35: function global_closure35() {
+    },
+    global_closure36: function global_closure36() {
+    },
+    global_closure37: function global_closure37() {
+    },
+    global_closure38: function global_closure38() {
+    },
+    global_closure39: function global_closure39() {
+    },
+    global_closure40: function global_closure40() {
+    },
+    global_closure41: function global_closure41() {
+    },
+    global_closure42: function global_closure42() {
+    },
+    global_closure43: function global_closure43() {
+    },
+    global_closure44: function global_closure44() {
+    },
+    global_closure45: function global_closure45() {
+    },
+    global_closure46: function global_closure46() {
+    },
+    global_closure47: function global_closure47() {
+    },
+    global_closure48: function global_closure48() {
+    },
+    global_closure49: function global_closure49() {
+    },
+    global_closure50: function global_closure50() {
+    },
+    global_closure51: function global_closure51() {
+    },
+    global_closure52: function global_closure52() {
+    },
+    global_closure53: function global_closure53() {
+    },
+    global_closure54: function global_closure54() {
+    },
+    global_closure55: function global_closure55() {
+    },
+    global_closure56: function global_closure56() {
+    },
+    global_closure57: function global_closure57() {
+    },
+    global__closure0: function global__closure0() {
+    },
+    global_closure58: function global_closure58() {
+    },
+    module_closure12: function module_closure12() {
+    },
+    module_closure13: function module_closure13() {
+    },
+    module_closure14: function module_closure14() {
+    },
+    module_closure15: function module_closure15() {
+    },
+    module_closure16: function module_closure16() {
+    },
+    module_closure17: function module_closure17() {
+    },
+    module_closure18: function module_closure18() {
+    },
+    module_closure19: function module_closure19() {
+    },
+    module__closure4: function module__closure4() {
+    },
+    module_closure20: function module_closure20() {
+    },
+    _red_closure0: function _red_closure0() {
+    },
+    _green_closure0: function _green_closure0() {
+    },
+    _blue_closure0: function _blue_closure0() {
+    },
+    _mix_closure0: function _mix_closure0() {
+    },
+    _hue_closure0: function _hue_closure0() {
+    },
+    _saturation_closure0: function _saturation_closure0() {
+    },
+    _lightness_closure0: function _lightness_closure0() {
+    },
+    _complement_closure0: function _complement_closure0() {
+    },
+    _adjust_closure0: function _adjust_closure0() {
+    },
+    _scale_closure0: function _scale_closure0() {
+    },
+    _change_closure0: function _change_closure0() {
+    },
+    _ieHexStr_closure0: function _ieHexStr_closure0() {
+    },
+    _ieHexStr_closure_hexString0: function _ieHexStr_closure_hexString0() {
+    },
+    _updateComponents_getParam0: function _updateComponents_getParam0(t0, t1, t2) {
+      this.keywords = t0;
+      this.scale = t1;
+      this.change = t2;
+    },
+    _updateComponents_closure1: function _updateComponents_closure1() {
+    },
+    _updateComponents_closure2: function _updateComponents_closure2() {
+    },
+    _updateComponents_updateValue0: function _updateComponents_updateValue0(t0, t1) {
+      this.change = t0;
+      this.adjust = t1;
+    },
+    _updateComponents_updateRgb0: function _updateComponents_updateRgb0(t0) {
+      this.updateValue = t0;
+    },
+    _functionString_closure0: function _functionString_closure0() {
+    },
+    _removedColorFunction_closure0: function _removedColorFunction_closure0(t0, t1, t2) {
+      this.name = t0;
+      this.argument = t1;
+      this.negative = t2;
+    },
+    _rgb_closure0: function _rgb_closure0() {
+    },
+    _hsl_closure0: function _hsl_closure0() {
+    },
+    _hwb_closure0: function _hwb_closure0() {
+    },
+    _parseChannels_closure0: function _parseChannels_closure0() {
+    },
+    colorClass_closure: function colorClass_closure() {
+    },
+    colorClass__closure: function colorClass__closure() {
+    },
+    colorClass__closure0: function colorClass__closure0() {
+    },
+    colorClass__closure1: function colorClass__closure1() {
+    },
+    colorClass__closure2: function colorClass__closure2() {
+    },
+    colorClass__closure3: function colorClass__closure3() {
+    },
+    colorClass__closure4: function colorClass__closure4() {
+    },
+    colorClass__closure5: function colorClass__closure5() {
+    },
+    colorClass__closure6: function colorClass__closure6() {
+    },
+    colorClass__closure7: function colorClass__closure7() {
+    },
+    colorClass__closure8: function colorClass__closure8() {
+    },
+    colorClass__closure9: function colorClass__closure9() {
+    },
+    _Channels: function _Channels() {
+    },
+    _NodeSassColor: function _NodeSassColor() {
+    },
+    legacyColorClass_closure: function legacyColorClass_closure() {
+    },
+    legacyColorClass_closure0: function legacyColorClass_closure0() {
+    },
+    legacyColorClass_closure1: function legacyColorClass_closure1() {
+    },
+    legacyColorClass_closure2: function legacyColorClass_closure2() {
+    },
+    legacyColorClass_closure3: function legacyColorClass_closure3() {
+    },
+    legacyColorClass_closure4: function legacyColorClass_closure4() {
+    },
+    legacyColorClass_closure5: function legacyColorClass_closure5() {
+    },
+    legacyColorClass_closure6: function legacyColorClass_closure6() {
+    },
+    legacyColorClass_closure7: function legacyColorClass_closure7() {
+    },
+    SassColor$rgb0(red, green, blue, alpha) {
+      var _null = null,
+        t1 = new A.SassColor0(red, green, blue, _null, _null, _null, A.fuzzyAssertRange0(A.SassColor__handleNullAlpha0(alpha), 0, 1, "alpha"), _null);
+      A.RangeError_checkValueInInterval(t1.get$red(0), 0, 255, "red");
+      A.RangeError_checkValueInInterval(t1.get$green(0), 0, 255, "green");
+      A.RangeError_checkValueInInterval(t1.get$blue(0), 0, 255, "blue");
+      return t1;
+    },
+    SassColor$rgbInternal0(_red, _green, _blue, alpha, format) {
+      var t1 = new A.SassColor0(_red, _green, _blue, null, null, null, A.fuzzyAssertRange0(alpha, 0, 1, "alpha"), format);
+      A.RangeError_checkValueInInterval(t1.get$red(0), 0, 255, "red");
+      A.RangeError_checkValueInInterval(t1.get$green(0), 0, 255, "green");
+      A.RangeError_checkValueInInterval(t1.get$blue(0), 0, 255, "blue");
+      return t1;
+    },
+    SassColor$hsl(hue, saturation, lightness, alpha) {
+      var _null = null,
+        t1 = A.SassColor__handleNullAlpha0(alpha);
+      return new A.SassColor0(_null, _null, _null, B.JSNumber_methods.$mod(hue, 360), A.fuzzyAssertRange0(saturation, 0, 100, "saturation"), A.fuzzyAssertRange0(lightness, 0, 100, "lightness"), A.fuzzyAssertRange0(t1, 0, 1, "alpha"), _null);
+    },
+    SassColor$hslInternal0(hue, saturation, lightness, alpha, format) {
+      return new A.SassColor0(null, null, null, B.JSNumber_methods.$mod(hue, 360), A.fuzzyAssertRange0(saturation, 0, 100, "saturation"), A.fuzzyAssertRange0(lightness, 0, 100, "lightness"), A.fuzzyAssertRange0(alpha, 0, 1, "alpha"), format);
+    },
+    SassColor_SassColor$hwb0(hue, whiteness, blackness, alpha) {
+      var t2, t1 = {},
+        scaledHue = B.JSNumber_methods.$mod(hue, 360) / 360,
+        scaledWhiteness = t1.scaledWhiteness = A.fuzzyAssertRange0(whiteness, 0, 100, "whiteness") / 100,
+        scaledBlackness = A.fuzzyAssertRange0(blackness, 0, 100, "blackness") / 100,
+        sum = scaledWhiteness + scaledBlackness;
+      if (sum > 1) {
+        t2 = t1.scaledWhiteness = scaledWhiteness / sum;
+        scaledBlackness /= sum;
+      } else
+        t2 = scaledWhiteness;
+      t2 = new A.SassColor_SassColor$hwb_toRgb0(t1, 1 - t2 - scaledBlackness);
+      return A.SassColor$rgb0(t2.call$1(scaledHue + 0.3333333333333333), t2.call$1(scaledHue), t2.call$1(scaledHue - 0.3333333333333333), alpha);
+    },
+    SassColor__handleNullAlpha0(alpha) {
+      if (alpha != null)
+        return alpha;
+      A.warnForDeprecation0("Passing null for alpha in the JS API is deprecated.\nTo preserve current behavior, pass 1 or undefined instead.\nMore info: https://sass-lang.com/d/null-alpha", B.Deprecation_omH);
+      return 1;
+    },
+    SassColor__hueToRgb0(m1, m2, hue) {
+      var t1;
+      if (hue < 0)
+        ++hue;
+      if (hue > 1)
+        --hue;
+      $label0$0: {
+        if (hue < 0.16666666666666666) {
+          t1 = m1 + (m2 - m1) * hue * 6;
+          break $label0$0;
+        }
+        if (hue < 0.5) {
+          t1 = m2;
+          break $label0$0;
+        }
+        if (hue < 0.6666666666666666) {
+          t1 = m1 + (m2 - m1) * (0.6666666666666666 - hue) * 6;
+          break $label0$0;
+        }
+        t1 = m1;
+        break $label0$0;
+      }
+      return t1;
+    },
+    SassColor0: function SassColor0(t0, t1, t2, t3, t4, t5, t6, t7) {
+      var _ = this;
+      _._color1$_red = t0;
+      _._color1$_green = t1;
+      _._color1$_blue = t2;
+      _._color1$_hue = t3;
+      _._color1$_saturation = t4;
+      _._color1$_lightness = t5;
+      _._color1$_alpha = t6;
+      _.format = t7;
+    },
+    SassColor_SassColor$hwb_toRgb0: function SassColor_SassColor$hwb_toRgb0(t0, t1) {
+      this._box_0 = t0;
+      this.factor = t1;
+    },
+    _ColorFormatEnum0: function _ColorFormatEnum0(t0) {
+      this._color1$_name = t0;
+    },
+    SpanColorFormat0: function SpanColorFormat0(t0) {
+      this._color1$_span = t0;
+    },
+    Combinator0: function Combinator0(t0, t1) {
+      this._combinator0$_text = t0;
+      this._name = t1;
+    },
+    ModifiableCssComment0: function ModifiableCssComment0(t0, t1) {
+      var _ = this;
+      _.text = t0;
+      _.span = t1;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    compile0(path, options) {
+      var color, ascii, logger, result, error, stackTrace, t1, color0, ascii0, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, exception, _null = null;
+      if (!A.isNodeJs())
+        A.jsThrow(new self.Error("The compile() method is only available in Node.js."));
+      t1 = options == null;
+      color0 = t1 ? _null : J.get$alertColor$x(options);
+      color = color0 == null ? A.hasTerminal0() : color0;
+      ascii0 = t1 ? _null : J.get$alertAscii$x(options);
+      ascii = ascii0 == null ? $._glyphs === B.C_AsciiGlyphSet : ascii0;
+      t2 = t1 ? _null : J.get$logger$x(options);
+      t3 = ascii;
+      if (t3 == null)
+        t3 = $._glyphs === B.C_AsciiGlyphSet;
+      logger = new A.JSToDartLogger(t2, new A.StderrLogger0(color), t3);
+      try {
+        t2 = t1 ? _null : J.get$loadPaths$x(options);
+        t3 = t1 ? _null : J.get$quietDeps$x(options);
+        if (t3 == null)
+          t3 = false;
+        t4 = A._parseOutputStyle0(t1 ? _null : J.get$style$x(options));
+        t5 = t1 ? _null : J.get$verbose$x(options);
+        if (t5 == null)
+          t5 = false;
+        t6 = t1 ? _null : J.get$charset$x(options);
+        if (t6 == null)
+          t6 = true;
+        t7 = t1 ? _null : J.get$sourceMap$x(options);
+        if (t7 == null)
+          t7 = false;
+        t8 = logger;
+        if (t1)
+          t9 = _null;
+        else {
+          t9 = J.get$importers$x(options);
+          t9 = t9 == null ? _null : J.map$1$1$ax(t9, A.compile___parseImporter$closure(), type$.Importer);
+        }
+        t10 = A._parseFunctions0(t1 ? _null : J.get$functions$x(options), false);
+        t11 = t1 ? _null : J.get$fatalDeprecations$x(options);
+        t11 = A._parseDeprecations(logger, t11, true);
+        t12 = t1 ? _null : J.get$silenceDeprecations$x(options);
+        t12 = A._parseDeprecations(logger, t12, false);
+        t13 = t1 ? _null : J.get$futureDeprecations$x(options);
+        t13 = A._parseDeprecations(logger, t13, false);
+        result = A.compile(path, t6, t11, new A.CastList(t10, A._arrayInstanceType(t10)._eval$1("CastList<1,Callable>")), t13, A.ImportCache$0(t9, t2, t8 == null ? new A.StderrLogger0(color) : t8, _null), _null, _null, t8, _null, t3, t12, t7, t4, _null, true, t5);
+        t1 = t1 ? _null : J.get$sourceMapIncludeSources$x(options);
+        if (t1 == null)
+          t1 = false;
+        t1 = A._convertResult(result, t1);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwNodeException(error, ascii, color, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    compileString0(text, options) {
+      var logger, result, error, stackTrace, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16, exception, _null = null,
+        t1 = options == null,
+        color0 = t1 ? _null : J.get$alertColor$x(options),
+        color = color0 == null ? A.hasTerminal0() : color0,
+        ascii0 = t1 ? _null : J.get$alertAscii$x(options),
+        ascii = ascii0 == null ? $._glyphs === B.C_AsciiGlyphSet : ascii0,
+        t2 = t1 ? _null : J.get$logger$x(options),
+        t3 = ascii;
+      if (t3 == null)
+        t3 = $._glyphs === B.C_AsciiGlyphSet;
+      logger = new A.JSToDartLogger(t2, new A.StderrLogger0(color), t3);
+      try {
+        t2 = A.parseSyntax(t1 ? _null : J.get$syntax$x(options));
+        t3 = t1 ? _null : A.NullableExtension_andThen0(J.get$url$x(options), A.utils1__jsToDartUrl$closure());
+        t4 = t1 ? _null : J.get$loadPaths$x(options);
+        t5 = t1 ? _null : J.get$quietDeps$x(options);
+        if (t5 == null)
+          t5 = false;
+        t6 = A._parseOutputStyle0(t1 ? _null : J.get$style$x(options));
+        t7 = t1 ? _null : J.get$verbose$x(options);
+        if (t7 == null)
+          t7 = false;
+        t8 = t1 ? _null : J.get$charset$x(options);
+        if (t8 == null)
+          t8 = true;
+        t9 = t1 ? _null : J.get$sourceMap$x(options);
+        if (t9 == null)
+          t9 = false;
+        t10 = logger;
+        if (t1)
+          t11 = _null;
+        else {
+          t11 = J.get$importers$x(options);
+          t11 = t11 == null ? _null : J.map$1$1$ax(t11, A.compile___parseImporter$closure(), type$.Importer);
+        }
+        t12 = t1 ? _null : A.NullableExtension_andThen0(J.get$importer$x(options), A.compile___parseImporter$closure());
+        if (t12 == null)
+          t12 = (t1 ? _null : J.get$url$x(options)) == null ? new A.NoOpImporter0() : _null;
+        t13 = A._parseFunctions0(t1 ? _null : J.get$functions$x(options), false);
+        t14 = t1 ? _null : J.get$fatalDeprecations$x(options);
+        t14 = A._parseDeprecations(logger, t14, true);
+        t15 = t1 ? _null : J.get$silenceDeprecations$x(options);
+        t15 = A._parseDeprecations(logger, t15, false);
+        t16 = t1 ? _null : J.get$futureDeprecations$x(options);
+        t16 = A._parseDeprecations(logger, t16, false);
+        result = A.compileString(text, t8, t14, new A.CastList(t13, A._arrayInstanceType(t13)._eval$1("CastList<1,Callable>")), t16, A.ImportCache$0(t11, t4, t10 == null ? new A.StderrLogger0(color) : t10, _null), t12, _null, _null, t10, _null, t5, t15, t9, t6, t2, t3, true, t7);
+        t1 = t1 ? _null : J.get$sourceMapIncludeSources$x(options);
+        if (t1 == null)
+          t1 = false;
+        t1 = A._convertResult(result, t1);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwNodeException(error, ascii, color, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    compileAsync1(path, options) {
+      var t1, color, ascii;
+      if (!A.isNodeJs())
+        A.jsThrow(new self.Error("The compileAsync() method is only available in Node.js."));
+      t1 = options == null;
+      color = t1 ? null : J.get$alertColor$x(options);
+      if (color == null)
+        color = A.hasTerminal0();
+      ascii = t1 ? null : J.get$alertAscii$x(options);
+      if (ascii == null)
+        ascii = $._glyphs === B.C_AsciiGlyphSet;
+      t1 = t1 ? null : J.get$logger$x(options);
+      return A._wrapAsyncSassExceptions(A.futureToPromise0(new A.compileAsync_closure(path, color, options, new A.JSToDartLogger(t1, new A.StderrLogger0(color), ascii)).call$0()), ascii, color);
+    },
+    compileStringAsync1(text, options) {
+      var ascii,
+        t1 = options == null,
+        color = t1 ? null : J.get$alertColor$x(options);
+      if (color == null)
+        color = A.hasTerminal0();
+      ascii = t1 ? null : J.get$alertAscii$x(options);
+      if (ascii == null)
+        ascii = $._glyphs === B.C_AsciiGlyphSet;
+      t1 = t1 ? null : J.get$logger$x(options);
+      return A._wrapAsyncSassExceptions(A.futureToPromise0(new A.compileStringAsync_closure(text, options, color, new A.JSToDartLogger(t1, new A.StderrLogger0(color), ascii)).call$0()), ascii, color);
+    },
+    _convertResult(result, includeSourceContents) {
+      var loadedUrls,
+        t1 = result._compile_result$_serialize,
+        t2 = t1._1,
+        sourceMap = t2 == null ? null : t2.toJson$1$includeSourceContents(includeSourceContents);
+      if (type$.Map_String_dynamic._is(sourceMap) && !sourceMap.containsKey$1("sources"))
+        sourceMap.$indexSet(0, "sources", A._setArrayType([], type$.JSArray_String));
+      loadedUrls = A.toJSArray(result._evaluate._0.map$1$1(0, A.utils1__dartToJSUrl$closure(), type$.nullable_Object));
+      t1 = t1._0;
+      return sourceMap == null ? {css: t1, loadedUrls: loadedUrls} : {css: t1, sourceMap: A.jsify0(sourceMap), loadedUrls: loadedUrls};
+    },
+    _wrapAsyncSassExceptions(promise, ascii, color) {
+      return J.then$2$x(promise, null, A.allowInterop(new A._wrapAsyncSassExceptions_closure(color, ascii)));
+    },
+    _parseOutputStyle0(style) {
+      var t1;
+      $label0$0: {
+        if (style == null || "expanded" === style) {
+          t1 = B.OutputStyle_00;
+          break $label0$0;
+        }
+        if ("compressed" === style) {
+          t1 = B.OutputStyle_10;
+          break $label0$0;
+        }
+        t1 = A.jsThrow(new self.Error('Unknown output style "' + A.S(style) + '".'));
+      }
+      return t1;
+    },
+    _parseAsyncImporter(importer) {
+      var t1, canonicalize, load, _0_0;
+      if (importer instanceof A.NodePackageImporter0)
+        return importer;
+      if (importer == null)
+        A.jsThrow(new self.Error("Importers may not be null."));
+      type$.JSImporter._as(importer);
+      t1 = J.getInterceptor$x(importer);
+      canonicalize = t1.get$canonicalize(importer);
+      load = t1.get$load(importer);
+      _0_0 = t1.get$findFileUrl(importer);
+      if (_0_0 != null)
+        if (canonicalize != null || load != null)
+          A.jsThrow(new self.Error(string$.An_impa));
+        else
+          return new A.JSToDartAsyncFileImporter(_0_0);
+      else if (canonicalize == null || load == null)
+        A.jsThrow(new self.Error(string$.An_impu));
+      else {
+        t1 = A._normalizeNonCanonicalSchemes(t1.get$nonCanonicalScheme(importer));
+        t1 = t1 == null ? B.Set_empty7 : A.Set_Set$unmodifiable(t1, type$.String);
+        t1.forEach$1(0, A.utils2__validateUrlScheme$closure());
+        return new A.JSToDartAsyncImporter(canonicalize, load, t1);
+      }
+    },
+    _parseImporter0(importer) {
+      var t1, canonicalize, load, _0_0;
+      if (importer instanceof A.NodePackageImporter0)
+        return importer;
+      if (importer == null)
+        A.jsThrow(new self.Error("Importers may not be null."));
+      type$.JSImporter._as(importer);
+      t1 = J.getInterceptor$x(importer);
+      canonicalize = t1.get$canonicalize(importer);
+      load = t1.get$load(importer);
+      _0_0 = t1.get$findFileUrl(importer);
+      if (_0_0 != null)
+        if (canonicalize != null || load != null)
+          A.jsThrow(new self.Error(string$.An_impa));
+        else
+          return new A.JSToDartFileImporter(_0_0);
+      else if (canonicalize == null || load == null)
+        A.jsThrow(new self.Error(string$.An_impu));
+      else {
+        t1 = A._normalizeNonCanonicalSchemes(t1.get$nonCanonicalScheme(importer));
+        t1 = t1 == null ? B.Set_empty7 : A.Set_Set$unmodifiable(t1, type$.String);
+        t1.forEach$1(0, A.utils2__validateUrlScheme$closure());
+        return new A.JSToDartImporter(canonicalize, load, t1);
+      }
+    },
+    _normalizeNonCanonicalSchemes(schemes) {
+      var t1;
+      $label0$0: {
+        if (typeof schemes == "string") {
+          t1 = A._setArrayType([schemes], type$.JSArray_String);
+          break $label0$0;
+        }
+        if (type$.List_dynamic._is(schemes)) {
+          t1 = J.cast$1$0$ax(schemes, type$.String);
+          break $label0$0;
+        }
+        if (schemes == null) {
+          t1 = null;
+          break $label0$0;
+        }
+        t1 = A.jsThrow(new self.Error('nonCanonicalScheme must be a string or list of strings, was "' + A.S(schemes) + '"'));
+      }
+      return t1;
+    },
+    _simplifyValue(value) {
+      var _0_1, t1, t2, _0_4, _0_3, _0_4_isSet, _0_5, _0_40, _0_8, first, _0_10, min, _null = null;
+      $label1$1: {
+        if (value instanceof A.SassCalculation0) {
+          _0_1 = value.name;
+          t1 = value.$arguments;
+          t2 = A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Object>");
+          _0_4 = A.List_List$of(new A.MappedListIterable(t1, A.compile___simplifyCalcArg$closure(), t2), true, t2._eval$1("ListIterable.E"));
+          $label0$0: {
+            _0_3 = "calc" === _0_1;
+            _0_4_isSet = _0_3;
+            if (_0_4_isSet) {
+              _0_5 = _0_4.length;
+              t1 = _0_5;
+              _0_40 = _0_4;
+              t1 = t1 === 1;
+            } else {
+              _0_40 = _null;
+              _0_5 = _0_40;
+              t1 = false;
+            }
+            if (t1) {
+              _0_8 = (_0_4_isSet ? _0_40 : _0_4)[0];
+              first = _0_8;
+              type$.Value_2._as(first);
+              t1 = first;
+              break $label0$0;
+            }
+            if (_0_3)
+              A.throwExpression(A.ArgumentError$("calc() requires exactly one argument.", _null));
+            _0_10 = "clamp" === _0_1;
+            t1 = _0_10;
+            if (t1) {
+              if (_0_4_isSet)
+                t1 = _0_5;
+              else {
+                _0_5 = _0_4.length;
+                t1 = _0_5;
+                _0_40 = _0_4;
+                _0_4_isSet = true;
+              }
+              t1 = t1 === 3;
+            } else
+              t1 = false;
+            if (t1) {
+              if (_0_4_isSet)
+                t1 = _0_40;
+              else {
+                t1 = _0_4;
+                _0_40 = t1;
+                _0_4_isSet = true;
+              }
+              _0_8 = t1[0];
+              min = _0_8;
+              if (_0_4_isSet)
+                t1 = _0_40;
+              else {
+                t1 = _0_4;
+                _0_40 = t1;
+                _0_4_isSet = true;
+              }
+              value = t1[1];
+              t1 = A.SassCalculation_clamp0(min, value, (_0_4_isSet ? _0_40 : _0_4)[2]);
+              break $label0$0;
+            }
+            if (_0_10)
+              A.throwExpression(A.ArgumentError$("clamp() requires exactly 3 arguments.", _null));
+            if ("min" === _0_1) {
+              t1 = A.SassCalculation_min0(_0_4_isSet ? _0_40 : _0_4);
+              break $label0$0;
+            }
+            if ("max" === _0_1) {
+              t1 = A.SassCalculation_max0(_0_4_isSet ? _0_40 : _0_4);
+              break $label0$0;
+            }
+            t1 = A.throwExpression(A.ArgumentError$('"' + _0_1 + '" is not a recognized calculation type.', _null));
+          }
+          break $label1$1;
+        }
+        t1 = value;
+        break $label1$1;
+      }
+      return t1;
+    },
+    _simplifyCalcArg(value) {
+      var t1;
+      $label0$0: {
+        if (value instanceof A.SassCalculation0) {
+          t1 = A._simplifyValue(value);
+          break $label0$0;
+        }
+        if (value instanceof A.CalculationOperation0) {
+          t1 = A.SassCalculation_operateInternal0(value._calculation0$_operator, A._simplifyCalcArg(value._calculation0$_left), A._simplifyCalcArg(value._calculation0$_right), false, true);
+          break $label0$0;
+        }
+        t1 = value;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _parseFunctions0(functions, asynch) {
+      var result;
+      if (functions == null)
+        return B.List_empty24;
+      result = A._setArrayType([], type$.JSArray_AsyncCallable_2);
+      A.jsForEach(functions, new A._parseFunctions_closure0(asynch, result));
+      return result;
+    },
+    _parseDeprecations(logger, deprecations, supportVersions) {
+      if (deprecations == null)
+        return null;
+      return new A._parseDeprecations_closure(deprecations, logger, supportVersions).call$0();
+    },
+    compileAsync_closure: function compileAsync_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.path = t0;
+      _.color = t1;
+      _.options = t2;
+      _.logger = t3;
+    },
+    compileAsync__closure: function compileAsync__closure() {
+    },
+    compileStringAsync_closure: function compileStringAsync_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.text = t0;
+      _.options = t1;
+      _.color = t2;
+      _.logger = t3;
+    },
+    compileStringAsync__closure: function compileStringAsync__closure() {
+    },
+    compileStringAsync__closure0: function compileStringAsync__closure0() {
+    },
+    _wrapAsyncSassExceptions_closure: function _wrapAsyncSassExceptions_closure(t0, t1) {
+      this.color = t0;
+      this.ascii = t1;
+    },
+    _parseFunctions_closure0: function _parseFunctions_closure0(t0, t1) {
+      this.asynch = t0;
+      this.result = t1;
+    },
+    _parseFunctions__closure2: function _parseFunctions__closure2(t0, t1) {
+      this.callback = t0;
+      this.callable = t1;
+    },
+    _parseFunctions___closure6: function _parseFunctions___closure6(t0, t1) {
+      this.callback = t0;
+      this.$arguments = t1;
+    },
+    _parseFunctions__closure3: function _parseFunctions__closure3(t0, t1) {
+      this.callback = t0;
+      this.callable = t1;
+    },
+    _parseFunctions___closure5: function _parseFunctions___closure5(t0, t1) {
+      this.callback = t0;
+      this.$arguments = t1;
+    },
+    _parseDeprecations_closure: function _parseDeprecations_closure(t0, t1, t2) {
+      this.deprecations = t0;
+      this.logger = t1;
+      this.supportVersions = t2;
+    },
+    nodePackageImporterClass_closure: function nodePackageImporterClass_closure() {
+    },
+    nodePackageImporterClass__closure: function nodePackageImporterClass__closure() {
+    },
+    compile(path, charset, fatalDeprecations, functions, futureDeprecations, importCache, indentWidth, lineFeed, logger, nodeImporter, quietDeps, silenceDeprecations, sourceMap, style, syntax, useSpaces, verbose) {
+      var t3, t4, t0, stylesheet, result, _null = null,
+        t1 = type$.Deprecation_3,
+        t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      if (silenceDeprecations != null)
+        t2.addAll$1(0, silenceDeprecations);
+      t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      if (fatalDeprecations != null)
+        t3.addAll$1(0, fatalDeprecations);
+      t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      if (futureDeprecations != null)
+        t1.addAll$1(0, futureDeprecations);
+      logger = A.DeprecationProcessingLogger$0(logger, t3, t1, !verbose, t2);
+      t1 = nodeImporter == null;
+      if (t1)
+        t2 = syntax == null || syntax === A.Syntax_forPath0(path);
+      else
+        t2 = false;
+      if (t2) {
+        if (importCache == null)
+          importCache = A.ImportCache$none(logger);
+        t2 = $.$get$FilesystemImporter_cwd0();
+        t3 = A.isNodeJs() ? self.process : _null;
+        if (!J.$eq$(t3 == null ? _null : J.get$platform$x(t3), "win32")) {
+          t3 = A.isNodeJs() ? self.process : _null;
+          t3 = J.$eq$(t3 == null ? _null : J.get$platform$x(t3), "darwin");
+        } else
+          t3 = true;
+        if (t3) {
+          t3 = $.$get$context();
+          t4 = A._realCasePath0(A.absolute(t3.normalize$1(path), _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null));
+          t0 = t4;
+          t4 = t3;
+          t3 = t0;
+        } else {
+          t3 = $.$get$context();
+          t4 = t3.canonicalize$1(0, path);
+          t0 = t4;
+          t4 = t3;
+          t3 = t0;
+        }
+        t4 = importCache.importCanonical$3$originalUrl(t2, t4.toUri$1(t3), t4.toUri$1(path));
+        t4.toString;
+        stylesheet = t4;
+      } else {
+        t2 = A.readFile0(path);
+        t3 = syntax == null ? A.Syntax_forPath0(path) : syntax;
+        stylesheet = A.Stylesheet_Stylesheet$parse0(t2, t3, logger, $.$get$context().toUri$1(path));
+      }
+      result = A._compileStylesheet1(stylesheet, logger, importCache, nodeImporter, $.$get$FilesystemImporter_cwd0(), functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset);
+      logger.summarize$1$js(!t1);
+      return result;
+    },
+    compileString(source, charset, fatalDeprecations, functions, futureDeprecations, importCache, importer, indentWidth, lineFeed, logger, nodeImporter, quietDeps, silenceDeprecations, sourceMap, style, syntax, url, useSpaces, verbose) {
+      var t3, stylesheet, result,
+        t1 = type$.Deprecation_3,
+        t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      if (silenceDeprecations != null)
+        t2.addAll$1(0, silenceDeprecations);
+      t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      if (fatalDeprecations != null)
+        t3.addAll$1(0, fatalDeprecations);
+      t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      if (futureDeprecations != null)
+        t1.addAll$1(0, futureDeprecations);
+      logger = A.DeprecationProcessingLogger$0(logger, t3, t1, !verbose, t2);
+      stylesheet = A.Stylesheet_Stylesheet$parse0(source, syntax == null ? B.Syntax_SCSS_scss0 : syntax, logger, url);
+      if (importer == null)
+        t1 = A.isBrowser() ? new A.NoOpImporter0() : $.$get$FilesystemImporter_cwd0();
+      else
+        t1 = importer;
+      result = A._compileStylesheet1(stylesheet, logger, importCache, nodeImporter, t1, functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset);
+      logger.summarize$1$js(nodeImporter != null);
+      return result;
+    },
+    _compileStylesheet1(stylesheet, logger, importCache, nodeImporter, importer, functions, style, useSpaces, indentWidth, lineFeed, quietDeps, sourceMap, charset) {
+      var evaluateResult = A._EvaluateVisitor$1(functions, importCache, logger, nodeImporter, quietDeps, sourceMap).run$2(0, importer, stylesheet),
+        serializeResult = A.serialize0(evaluateResult._1, charset, indentWidth, false, lineFeed, sourceMap, style, useSpaces),
+        resultSourceMap = serializeResult._1;
+      if (resultSourceMap != null && importCache != null)
+        A.mapInPlace0(resultSourceMap.urls, new A._compileStylesheet_closure1(stylesheet, importCache));
+      return new A.CompileResult0(evaluateResult, serializeResult);
+    },
+    _compileStylesheet_closure1: function _compileStylesheet_closure1(t0, t1) {
+      this.stylesheet = t0;
+      this.importCache = t1;
+    },
+    CompileOptions: function CompileOptions() {
+    },
+    CompileStringOptions: function CompileStringOptions() {
+    },
+    NodeCompileResult: function NodeCompileResult() {
+    },
+    CompileResult0: function CompileResult0(t0, t1) {
+      this._evaluate = t0;
+      this._compile_result$_serialize = t1;
+    },
+    initCompiler() {
+      return new A.Compiler();
+    },
+    initAsyncCompiler() {
+      return A.futureToPromise0(new A.initAsyncCompiler_closure().call$0());
+    },
+    Compiler: function Compiler() {
+      this._disposed = false;
+    },
+    AsyncCompiler: function AsyncCompiler(t0) {
+      this.compilations = t0;
+      this._disposed = false;
+    },
+    AsyncCompiler_addCompilation_closure: function AsyncCompiler_addCompilation_closure() {
+    },
+    compilerClass_closure: function compilerClass_closure() {
+    },
+    compilerClass__closure: function compilerClass__closure() {
+    },
+    compilerClass__closure0: function compilerClass__closure0() {
+    },
+    compilerClass__closure1: function compilerClass__closure1() {
+    },
+    compilerClass__closure2: function compilerClass__closure2() {
+    },
+    asyncCompilerClass_closure: function asyncCompilerClass_closure() {
+    },
+    asyncCompilerClass__closure: function asyncCompilerClass__closure() {
+    },
+    asyncCompilerClass__closure0: function asyncCompilerClass__closure0() {
+    },
+    asyncCompilerClass__closure1: function asyncCompilerClass__closure1() {
+    },
+    asyncCompilerClass__closure2: function asyncCompilerClass__closure2() {
+    },
+    asyncCompilerClass___closure: function asyncCompilerClass___closure(t0) {
+      this.self = t0;
+    },
+    initAsyncCompiler_closure: function initAsyncCompiler_closure() {
+    },
+    ComplexSassNumber0: function ComplexSassNumber0(t0, t1, t2, t3) {
+      var _ = this;
+      _._complex0$_numeratorUnits = t0;
+      _._complex0$_denominatorUnits = t1;
+      _._number1$_value = t2;
+      _.hashCache = null;
+      _.asSlash = t3;
+    },
+    ComplexSelector$0(leadingCombinators, components, span, lineBreak) {
+      var t1 = A.List_List$unmodifiable(leadingCombinators, type$.CssValue_Combinator_2),
+        t2 = A.List_List$unmodifiable(components, type$.ComplexSelectorComponent_2);
+      if (t1.length === 0 && t2.length === 0)
+        A.throwExpression(A.ArgumentError$(string$.leadin, null));
+      return new A.ComplexSelector0(t1, t2, lineBreak, span);
+    },
+    ComplexSelector0: function ComplexSelector0(t0, t1, t2, t3) {
+      var _ = this;
+      _.leadingCombinators = t0;
+      _.components = t1;
+      _.lineBreak = t2;
+      _._complex$__ComplexSelector_specificity_FI = $;
+      _.span = t3;
+    },
+    ComplexSelector_specificity_closure0: function ComplexSelector_specificity_closure0() {
+    },
+    ComplexSelectorComponent0: function ComplexSelectorComponent0(t0, t1, t2) {
+      this.selector = t0;
+      this.combinators = t1;
+      this.span = t2;
+    },
+    ComplexSelectorComponent_toString_closure0: function ComplexSelectorComponent_toString_closure0() {
+    },
+    CompoundSelector$0(components, span) {
+      var t1 = A.List_List$unmodifiable(components, type$.SimpleSelector_2);
+      if (t1.length === 0)
+        A.throwExpression(A.ArgumentError$("components may not be empty.", null));
+      return new A.CompoundSelector0(t1, span);
+    },
+    CompoundSelector0: function CompoundSelector0(t0, t1) {
+      this.components = t0;
+      this._compound$__CompoundSelector_specificity_FI = $;
+      this.span = t1;
+    },
+    CompoundSelector_specificity_closure0: function CompoundSelector_specificity_closure0() {
+    },
+    Configuration0: function Configuration0(t0, t1) {
+      this._configuration0$_values = t0;
+      this._configuration0$__originalConfiguration = t1;
+    },
+    ExplicitConfiguration0: function ExplicitConfiguration0(t0, t1, t2) {
+      this.nodeWithSpan = t0;
+      this._configuration0$_values = t1;
+      this._configuration0$__originalConfiguration = t2;
+    },
+    ConfiguredValue0: function ConfiguredValue0(t0, t1, t2) {
+      this.value = t0;
+      this.configurationSpan = t1;
+      this.assignmentNode = t2;
+    },
+    ConfiguredVariable0: function ConfiguredVariable0(t0, t1, t2, t3) {
+      var _ = this;
+      _.name = t0;
+      _.expression = t1;
+      _.isGuarded = t2;
+      _.span = t3;
+    },
+    ContentBlock$0($arguments, children, span) {
+      var _s8_ = "@content",
+        t1 = A.stringReplaceAllUnchecked(_s8_, "_", "-"),
+        t2 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure0());
+      return new A.ContentBlock0(t1, _s8_, $arguments, span, t2, t3);
+    },
+    ContentBlock0: function ContentBlock0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.name = t0;
+      _.originalName = t1;
+      _.$arguments = t2;
+      _.span = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    ContentRule0: function ContentRule0(t0, t1) {
+      this.$arguments = t0;
+      this.span = t1;
+    },
+    _disallowedFunctionNames_closure0: function _disallowedFunctionNames_closure0() {
+    },
+    CssParser0: function CssParser0(t0, t1, t2, t3) {
+      var _ = this;
+      _._stylesheet0$_isUseAllowed = true;
+      _._stylesheet0$_inExpression = _._stylesheet0$_inParentheses = _._stylesheet0$_inStyleRule = _._stylesheet0$_inUnknownAtRule = _._stylesheet0$_inControlDirective = _._stylesheet0$_inContentBlock = _._stylesheet0$_inMixin = false;
+      _._stylesheet0$_globalVariables = t0;
+      _.lastSilentComment = null;
+      _.scanner = t1;
+      _.logger = t2;
+      _._parser0$_interpolationMap = t3;
+    },
+    DebugRule0: function DebugRule0(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    ModifiableCssDeclaration$0($name, value, span, parsedAsCustomProperty, valueSpanForMap) {
+      var t2,
+        t1 = valueSpanForMap == null ? value.span : valueSpanForMap;
+      if (parsedAsCustomProperty)
+        if (!J.startsWith$1$s($name.value, "--"))
+          A.throwExpression(A.ArgumentError$(string$.parsed, null));
+        else {
+          t2 = value.value;
+          if (!(t2 instanceof A.SassString0))
+            A.throwExpression(A.ArgumentError$(string$.If_par + value.toString$0(0) + "` of type " + A.getRuntimeTypeOfDartObject(t2).toString$0(0) + ").", null));
+        }
+      return new A.ModifiableCssDeclaration0($name, value, parsedAsCustomProperty, t1, span);
+    },
+    ModifiableCssDeclaration0: function ModifiableCssDeclaration0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.parsedAsCustomProperty = t2;
+      _.valueSpanForMap = t3;
+      _.span = t4;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    Declaration$0($name, value, span) {
+      return new A.Declaration0($name, value, span, null, false);
+    },
+    Declaration$nested0($name, children, span, value) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.Declaration0($name, value, span, t1, t2);
+    },
+    Declaration0: function Declaration0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.name = t0;
+      _.value = t1;
+      _.span = t2;
+      _.children = t3;
+      _.hasDeclarations = t4;
+    },
+    SupportsDeclaration0: function SupportsDeclaration0(t0, t1, t2) {
+      this.name = t0;
+      this.value = t1;
+      this.span = t2;
+    },
+    Deprecation_fromId0(id) {
+      return A.IterableExtension_firstWhereOrNull(B.List_jM9, new A.Deprecation_fromId_closure0(id));
+    },
+    Deprecation_forVersion0(version) {
+      var t2, _i, deprecation, $self, t3,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(type$.Deprecation_3);
+      for (t2 = A.VersionRange_VersionRange(true, version).get$allows(), _i = 0; _i < 18; ++_i) {
+        deprecation = B.List_jM9[_i];
+        $self = deprecation._deprecation$_deprecatedIn;
+        t3 = $self == null ? null : A.Version___parse_tearOff($self);
+        t3 = t3 == null ? null : t2.call$1(t3);
+        if (t3 == null ? false : t3)
+          t1.add$1(0, deprecation);
+      }
+      return t1;
+    },
+    Deprecation0: function Deprecation0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.id = t0;
+      _._deprecation$_deprecatedIn = t1;
+      _.description = t2;
+      _.isFuture = t3;
+      _._name = t4;
+    },
+    Deprecation_fromId_closure0: function Deprecation_fromId_closure0(t0) {
+      this.id = t0;
+    },
+    DeprecationProcessingLogger$0(_inner, fatalDeprecations, futureDeprecations, limitRepetition, silenceDeprecations) {
+      var t1 = new A.DeprecationProcessingLogger0(A.LinkedHashMap_LinkedHashMap$_empty(type$.Deprecation_3, type$.int), _inner, silenceDeprecations, fatalDeprecations, futureDeprecations, limitRepetition);
+      t1.DeprecationProcessingLogger$5$fatalDeprecations$futureDeprecations$limitRepetition$silenceDeprecations0(_inner, fatalDeprecations, futureDeprecations, limitRepetition, silenceDeprecations);
+      return t1;
+    },
+    DeprecationProcessingLogger0: function DeprecationProcessingLogger0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._deprecation_processing$_warningCounts = t0;
+      _._deprecation_processing$_inner = t1;
+      _.silenceDeprecations = t2;
+      _.fatalDeprecations = t3;
+      _.futureDeprecations = t4;
+      _.limitRepetition = t5;
+    },
+    DeprecationProcessingLogger_summarize_closure1: function DeprecationProcessingLogger_summarize_closure1() {
+    },
+    DeprecationProcessingLogger_summarize_closure2: function DeprecationProcessingLogger_summarize_closure2() {
+    },
+    Deprecation1: function Deprecation1() {
+    },
+    deprecations_closure: function deprecations_closure(t0) {
+      this.deprecation = t0;
+    },
+    versionClass_closure: function versionClass_closure() {
+    },
+    versionClass__closure: function versionClass__closure() {
+    },
+    versionClass__closure0: function versionClass__closure0() {
+    },
+    DynamicImport0: function DynamicImport0(t0, t1) {
+      this.urlString = t0;
+      this.span = t1;
+    },
+    EachRule$0(variables, list, children, span) {
+      var t1 = A.List_List$unmodifiable(variables, type$.String),
+        t2 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure0());
+      return new A.EachRule0(t1, list, span, t2, t3);
+    },
+    EachRule0: function EachRule0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.variables = t0;
+      _.list = t1;
+      _.span = t2;
+      _.children = t3;
+      _.hasDeclarations = t4;
+    },
+    EachRule_toString_closure0: function EachRule_toString_closure0() {
+    },
+    EmptyExtensionStore0: function EmptyExtensionStore0() {
+    },
+    Environment$0() {
+      var t1 = type$.String,
+        t2 = type$.Module_Callable_2,
+        t3 = type$.AstNode_2,
+        t4 = type$.int,
+        t5 = type$.Callable_2,
+        t6 = type$.JSArray_Map_String_Callable_2;
+      return new A.Environment0(A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), null, null, A._setArrayType([], type$.JSArray_Module_Callable_2), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value_2)], type$.JSArray_Map_String_Value_2), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t3)], type$.JSArray_Map_String_AstNode_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), A._setArrayType([A.LinkedHashMap_LinkedHashMap$_empty(t1, t5)], t6), A.LinkedHashMap_LinkedHashMap$_empty(t1, t4), null);
+    },
+    Environment$_0(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, _functions, _mixins, _content) {
+      var t1 = type$.String,
+        t2 = type$.int;
+      return new A.Environment0(_modules, _namespaceNodes, _globalModules, _importedModules, _forwardedModules, _nestedForwardedModules, _allModules, _variables, _variableNodes, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _functions, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _mixins, A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), _content);
+    },
+    _EnvironmentModule__EnvironmentModule1(environment, css, preModuleComments, extensionStore, forwarded) {
+      var t1, t2, t3, t4, t5, t6, module, result, t7;
+      if (forwarded == null)
+        forwarded = B.Set_empty4;
+      t1 = type$.dynamic;
+      t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t2 = type$.Module_Callable_2, t3 = type$.List_CssComment_2, t4 = A.MapExtensions_get_pairs0(preModuleComments, t2, t3), t4 = t4.get$iterator(t4), t5 = type$.CssComment_2; t4.moveNext$0();) {
+        t6 = t4.get$current(t4);
+        module = t6._0;
+        result = A.List_List$from(t6._1, false, t5);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        t1.$indexSet(0, module, result);
+      }
+      t1 = A.ConstantMap_ConstantMap$from(t1, t2, t3);
+      t2 = A._EnvironmentModule__makeModulesByVariable1(forwarded);
+      t3 = A._EnvironmentModule__memberMap1(B.JSArray_methods.get$first(environment._environment0$_variables), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure11(), type$.Map_String_Value_2), type$.Value_2);
+      t4 = A._EnvironmentModule__memberMap1(B.JSArray_methods.get$first(environment._environment0$_variableNodes), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure12(), type$.Map_String_AstNode_2), type$.AstNode_2);
+      t5 = type$.Map_String_Callable_2;
+      t6 = type$.Callable_2;
+      t7 = A._EnvironmentModule__memberMap1(B.JSArray_methods.get$first(environment._environment0$_functions), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure13(), t5), t6);
+      t6 = A._EnvironmentModule__memberMap1(B.JSArray_methods.get$first(environment._environment0$_mixins), forwarded.map$1$1(0, new A._EnvironmentModule__EnvironmentModule_closure14(), t5), t6);
+      t5 = J.get$isNotEmpty$asx(css.get$children(css)) || preModuleComments.get$isNotEmpty(preModuleComments) || B.JSArray_methods.any$1(environment._environment0$_allModules, new A._EnvironmentModule__EnvironmentModule_closure15());
+      return A._EnvironmentModule$_1(environment, css, t1, extensionStore, t2, t3, t4, t7, t6, t5, !extensionStore.get$isEmpty(extensionStore) || B.JSArray_methods.any$1(environment._environment0$_allModules, new A._EnvironmentModule__EnvironmentModule_closure16()));
+    },
+    _EnvironmentModule__makeModulesByVariable1(forwarded) {
+      var modulesByVariable, t1, t2, t3, t4, t5;
+      if (forwarded.get$isEmpty(forwarded))
+        return B.Map_empty10;
+      modulesByVariable = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Module_Callable_2);
+      for (t1 = forwarded.get$iterator(forwarded); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        if (t2 instanceof A._EnvironmentModule1) {
+          for (t3 = t2._environment0$_modulesByVariable, t3 = t3.get$values(t3), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+            t4 = t3.get$current(t3);
+            t5 = t4.get$variables();
+            A.setAll0(modulesByVariable, t5.get$keys(t5), t4);
+          }
+          A.setAll0(modulesByVariable, J.get$keys$z(B.JSArray_methods.get$first(t2._environment0$_environment._environment0$_variables)), t2);
+        } else {
+          t3 = t2.get$variables();
+          A.setAll0(modulesByVariable, t3.get$keys(t3), t2);
+        }
+      }
+      return modulesByVariable;
+    },
+    _EnvironmentModule__memberMap1(localMap, otherMaps, $V) {
+      var t1, t2, t3;
+      localMap = new A.PublicMemberMapView0(localMap, $V._eval$1("PublicMemberMapView0<0>"));
+      if (otherMaps.get$isEmpty(otherMaps))
+        return localMap;
+      t1 = A._setArrayType([], $V._eval$1("JSArray<Map<String,0>>"));
+      for (t2 = otherMaps.get$iterator(otherMaps); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        if (t3.get$isNotEmpty(t3))
+          t1.push(t3);
+      }
+      t1.push(localMap);
+      if (t1.length === 1)
+        return localMap;
+      return A.MergedMapView$0(t1, type$.String, $V);
+    },
+    _EnvironmentModule$_1(_environment, css, preModuleComments, extensionStore, _modulesByVariable, variables, variableNodes, functions, mixins, transitivelyContainsCss, transitivelyContainsExtensions) {
+      return new A._EnvironmentModule1(_environment._environment0$_allModules, variables, variableNodes, functions, mixins, extensionStore, css, preModuleComments, transitivelyContainsCss, transitivelyContainsExtensions, _environment, _modulesByVariable);
+    },
+    Environment0: function Environment0(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14) {
+      var _ = this;
+      _._environment0$_modules = t0;
+      _._environment0$_namespaceNodes = t1;
+      _._environment0$_globalModules = t2;
+      _._environment0$_importedModules = t3;
+      _._environment0$_forwardedModules = t4;
+      _._environment0$_nestedForwardedModules = t5;
+      _._environment0$_allModules = t6;
+      _._environment0$_variables = t7;
+      _._environment0$_variableNodes = t8;
+      _._environment0$_variableIndices = t9;
+      _._environment0$_functions = t10;
+      _._environment0$_functionIndices = t11;
+      _._environment0$_mixins = t12;
+      _._environment0$_mixinIndices = t13;
+      _._environment0$_content = t14;
+      _._environment0$_inMixin = false;
+      _._environment0$_inSemiGlobalScope = true;
+      _._environment0$_lastVariableIndex = _._environment0$_lastVariableName = null;
+    },
+    Environment__getVariableFromGlobalModule_closure0: function Environment__getVariableFromGlobalModule_closure0(t0) {
+      this.name = t0;
+    },
+    Environment_setVariable_closure2: function Environment_setVariable_closure2(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    Environment_setVariable_closure3: function Environment_setVariable_closure3(t0) {
+      this.name = t0;
+    },
+    Environment_setVariable_closure4: function Environment_setVariable_closure4(t0, t1) {
+      this.$this = t0;
+      this.name = t1;
+    },
+    Environment__getFunctionFromGlobalModule_closure0: function Environment__getFunctionFromGlobalModule_closure0(t0) {
+      this.name = t0;
+    },
+    Environment__getMixinFromGlobalModule_closure0: function Environment__getMixinFromGlobalModule_closure0(t0) {
+      this.name = t0;
+    },
+    Environment_toModule_closure0: function Environment_toModule_closure0() {
+    },
+    Environment_toDummyModule_closure0: function Environment_toDummyModule_closure0() {
+    },
+    _EnvironmentModule1: function _EnvironmentModule1(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11) {
+      var _ = this;
+      _.upstream = t0;
+      _.variables = t1;
+      _.variableNodes = t2;
+      _.functions = t3;
+      _.mixins = t4;
+      _.extensionStore = t5;
+      _.css = t6;
+      _.preModuleComments = t7;
+      _.transitivelyContainsCss = t8;
+      _.transitivelyContainsExtensions = t9;
+      _._environment0$_environment = t10;
+      _._environment0$_modulesByVariable = t11;
+    },
+    _EnvironmentModule__EnvironmentModule_closure11: function _EnvironmentModule__EnvironmentModule_closure11() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure12: function _EnvironmentModule__EnvironmentModule_closure12() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure13: function _EnvironmentModule__EnvironmentModule_closure13() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure14: function _EnvironmentModule__EnvironmentModule_closure14() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure15: function _EnvironmentModule__EnvironmentModule_closure15() {
+    },
+    _EnvironmentModule__EnvironmentModule_closure16: function _EnvironmentModule__EnvironmentModule_closure16() {
+    },
+    ErrorRule0: function ErrorRule0(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    _EvaluateVisitor$1(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t4,
+        t1 = type$.Uri,
+        t2 = type$.Module_Callable_2,
+        t3 = A._setArrayType([], type$.JSArray_Record_2_String_and_AstNode_2);
+      if (importCache == null)
+        t4 = nodeImporter == null ? A.ImportCache$none(logger) : null;
+      else
+        t4 = importCache;
+      t1 = new A._EvaluateVisitor1(t4, nodeImporter, A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Callable_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Configuration_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode_2), logger, A.LinkedHashSet_LinkedHashSet$_empty(type$.Record_2_String_and_SourceSpan), quietDeps, sourceMap, A.Environment$0(), A.LinkedHashSet_LinkedHashSet$_empty(t1), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.nullable_AstNode_2), t3, B.Configuration_Map_empty_null0);
+      t1._EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap1(functions, importCache, logger, nodeImporter, quietDeps, sourceMap);
+      return t1;
+    },
+    _EvaluateVisitor1: function _EvaluateVisitor1(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15) {
+      var _ = this;
+      _._evaluate0$_importCache = t0;
+      _._nodeImporter = t1;
+      _._evaluate0$_builtInFunctions = t2;
+      _._evaluate0$_builtInModules = t3;
+      _._evaluate0$_modules = t4;
+      _._evaluate0$_moduleConfigurations = t5;
+      _._evaluate0$_moduleNodes = t6;
+      _._evaluate0$_logger = t7;
+      _._evaluate0$_warningsEmitted = t8;
+      _._evaluate0$_quietDeps = t9;
+      _._evaluate0$_sourceMap = t10;
+      _._evaluate0$_environment = t11;
+      _._evaluate0$_declarationName = _._evaluate0$__parent = _._evaluate0$_mediaQuerySources = _._evaluate0$_mediaQueries = _._evaluate0$_styleRuleIgnoringAtRoot = null;
+      _._evaluate0$_member = "root stylesheet";
+      _._evaluate0$_importSpan = _._evaluate0$_callableNode = _._evaluate0$_currentCallable = null;
+      _._evaluate0$_inSupportsDeclaration = _._evaluate0$_inKeyframes = _._evaluate0$_atRootExcludingStyleRule = _._evaluate0$_inUnknownAtRule = _._evaluate0$_inFunction = false;
+      _._evaluate0$_loadedUrls = t12;
+      _._evaluate0$_activeModules = t13;
+      _._evaluate0$_stack = t14;
+      _._evaluate0$_importer = null;
+      _._evaluate0$_inDependency = false;
+      _._evaluate0$__extensionStore = _._evaluate0$_preModuleComments = _._evaluate0$_outOfOrderImports = _._evaluate0$__endOfImports = _._evaluate0$__root = _._evaluate0$__stylesheet = null;
+      _._evaluate0$_configuration = t15;
+    },
+    _EvaluateVisitor_closure25: function _EvaluateVisitor_closure25(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure26: function _EvaluateVisitor_closure26(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure27: function _EvaluateVisitor_closure27(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure28: function _EvaluateVisitor_closure28(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure29: function _EvaluateVisitor_closure29(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure30: function _EvaluateVisitor_closure30(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure31: function _EvaluateVisitor_closure31(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure32: function _EvaluateVisitor_closure32(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure33: function _EvaluateVisitor_closure33(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure10: function _EvaluateVisitor__closure10(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure34: function _EvaluateVisitor_closure34(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure9: function _EvaluateVisitor__closure9(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.module = t2;
+    },
+    _EvaluateVisitor_closure35: function _EvaluateVisitor_closure35(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure36: function _EvaluateVisitor_closure36(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__closure7: function _EvaluateVisitor__closure7(t0, t1, t2) {
+      this.values = t0;
+      this.span = t1;
+      this.callableNode = t2;
+    },
+    _EvaluateVisitor__closure8: function _EvaluateVisitor__closure8(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_closure37: function _EvaluateVisitor_closure37(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_run_closure1: function _EvaluateVisitor_run_closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.importer = t2;
+    },
+    _EvaluateVisitor_run__closure1: function _EvaluateVisitor_run__closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.importer = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__loadModule_closure3: function _EvaluateVisitor__loadModule_closure3(t0, t1) {
+      this._box_1 = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__loadModule_closure4: function _EvaluateVisitor__loadModule_closure4(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.url = t1;
+      _.nodeWithSpan = t2;
+      _.baseUrl = t3;
+      _.namesInErrors = t4;
+      _.configuration = t5;
+      _.callback = t6;
+    },
+    _EvaluateVisitor__loadModule__closure3: function _EvaluateVisitor__loadModule__closure3(t0, t1) {
+      this.$this = t0;
+      this.message = t1;
+    },
+    _EvaluateVisitor__loadModule__closure4: function _EvaluateVisitor__loadModule__closure4(t0, t1, t2) {
+      this._box_0 = t0;
+      this.callback = t1;
+      this.firstLoad = t2;
+    },
+    _EvaluateVisitor__execute_closure1: function _EvaluateVisitor__execute_closure1(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.stylesheet = t2;
+      _.extensionStore = t3;
+      _.configuration = t4;
+      _.css = t5;
+      _.preModuleComments = t6;
+    },
+    _EvaluateVisitor__combineCss_closure3: function _EvaluateVisitor__combineCss_closure3() {
+    },
+    _EvaluateVisitor__combineCss_closure4: function _EvaluateVisitor__combineCss_closure4(t0) {
+      this.selectors = t0;
+    },
+    _EvaluateVisitor__combineCss_visitModule1: function _EvaluateVisitor__combineCss_visitModule1(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.seen = t1;
+      _.clone = t2;
+      _.css = t3;
+      _.imports = t4;
+      _.sorted = t5;
+    },
+    _EvaluateVisitor__extendModules_closure3: function _EvaluateVisitor__extendModules_closure3(t0) {
+      this.originalSelectors = t0;
+    },
+    _EvaluateVisitor__extendModules_closure4: function _EvaluateVisitor__extendModules_closure4() {
+    },
+    _EvaluateVisitor_visitAtRootRule_closure3: function _EvaluateVisitor_visitAtRootRule_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitAtRootRule_closure4: function _EvaluateVisitor_visitAtRootRule_closure4(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure11: function _EvaluateVisitor__scopeForAtRoot_closure11(t0, t1, t2) {
+      this.$this = t0;
+      this.newParent = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure12: function _EvaluateVisitor__scopeForAtRoot_closure12(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure13: function _EvaluateVisitor__scopeForAtRoot_closure13(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot__closure1: function _EvaluateVisitor__scopeForAtRoot__closure1(t0, t1) {
+      this.innerScope = t0;
+      this.callback = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure14: function _EvaluateVisitor__scopeForAtRoot_closure14(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure15: function _EvaluateVisitor__scopeForAtRoot_closure15() {
+    },
+    _EvaluateVisitor__scopeForAtRoot_closure16: function _EvaluateVisitor__scopeForAtRoot_closure16(t0, t1) {
+      this.$this = t0;
+      this.innerScope = t1;
+    },
+    _EvaluateVisitor_visitContentRule_closure1: function _EvaluateVisitor_visitContentRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.content = t1;
+    },
+    _EvaluateVisitor_visitDeclaration_closure1: function _EvaluateVisitor_visitDeclaration_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitEachRule_closure5: function _EvaluateVisitor_visitEachRule_closure5(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure6: function _EvaluateVisitor_visitEachRule_closure6(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.nodeWithSpan = t2;
+    },
+    _EvaluateVisitor_visitEachRule_closure7: function _EvaluateVisitor_visitEachRule_closure7(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.list = t1;
+      _.setVariables = t2;
+      _.node = t3;
+    },
+    _EvaluateVisitor_visitEachRule__closure1: function _EvaluateVisitor_visitEachRule__closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.setVariables = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitEachRule___closure1: function _EvaluateVisitor_visitEachRule___closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure5: function _EvaluateVisitor_visitAtRule_closure5(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitAtRule_closure6: function _EvaluateVisitor_visitAtRule_closure6(t0, t1, t2) {
+      this.$this = t0;
+      this.name = t1;
+      this.children = t2;
+    },
+    _EvaluateVisitor_visitAtRule__closure1: function _EvaluateVisitor_visitAtRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.children = t1;
+    },
+    _EvaluateVisitor_visitAtRule_closure7: function _EvaluateVisitor_visitAtRule_closure7() {
+    },
+    _EvaluateVisitor_visitForRule_closure9: function _EvaluateVisitor_visitForRule_closure9(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure10: function _EvaluateVisitor_visitForRule_closure10(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure11: function _EvaluateVisitor_visitForRule_closure11(t0) {
+      this.fromNumber = t0;
+    },
+    _EvaluateVisitor_visitForRule_closure12: function _EvaluateVisitor_visitForRule_closure12(t0, t1) {
+      this.toNumber = t0;
+      this.fromNumber = t1;
+    },
+    _EvaluateVisitor_visitForRule_closure13: function _EvaluateVisitor_visitForRule_closure13(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.from = t3;
+      _.direction = t4;
+      _.fromNumber = t5;
+    },
+    _EvaluateVisitor_visitForRule__closure1: function _EvaluateVisitor_visitForRule__closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitForwardRule_closure3: function _EvaluateVisitor_visitForwardRule_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitForwardRule_closure4: function _EvaluateVisitor_visitForwardRule_closure4(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__registerCommentsForModule_closure1: function _EvaluateVisitor__registerCommentsForModule_closure1() {
+    },
+    _EvaluateVisitor_visitIfRule_closure1: function _EvaluateVisitor_visitIfRule_closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIfRule__closure1: function _EvaluateVisitor_visitIfRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.clause = t1;
+    },
+    _EvaluateVisitor_visitIfRule___closure1: function _EvaluateVisitor_visitIfRule___closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport_closure1: function _EvaluateVisitor__visitDynamicImport_closure1(t0, t1) {
+      this.$this = t0;
+      this.$import = t1;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure7: function _EvaluateVisitor__visitDynamicImport__closure7(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor__visitDynamicImport__closure8: function _EvaluateVisitor__visitDynamicImport__closure8() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure9: function _EvaluateVisitor__visitDynamicImport__closure9() {
+    },
+    _EvaluateVisitor__visitDynamicImport__closure10: function _EvaluateVisitor__visitDynamicImport__closure10(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.loadsUserDefinedModules = t2;
+      _.environment = t3;
+      _.children = t4;
+    },
+    _EvaluateVisitor__applyMixin_closure3: function _EvaluateVisitor__applyMixin_closure3(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure4: function _EvaluateVisitor__applyMixin__closure4(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.$arguments = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin_closure4: function _EvaluateVisitor__applyMixin_closure4(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.contentCallable = t1;
+      _.mixin = t2;
+      _.nodeWithSpanWithoutContent = t3;
+    },
+    _EvaluateVisitor__applyMixin__closure3: function _EvaluateVisitor__applyMixin__closure3(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin___closure1: function _EvaluateVisitor__applyMixin___closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.mixin = t1;
+      this.nodeWithSpanWithoutContent = t2;
+    },
+    _EvaluateVisitor__applyMixin____closure1: function _EvaluateVisitor__applyMixin____closure1(t0, t1) {
+      this.$this = t0;
+      this.statement = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure5: function _EvaluateVisitor_visitIncludeRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure6: function _EvaluateVisitor_visitIncludeRule_closure6(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitIncludeRule_closure7: function _EvaluateVisitor_visitIncludeRule_closure7(t0) {
+      this.node = t0;
+    },
+    _EvaluateVisitor_visitMediaRule_closure5: function _EvaluateVisitor_visitMediaRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.queries = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure6: function _EvaluateVisitor_visitMediaRule_closure6(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.queries = t2;
+      _.mergedSources = t3;
+      _.node = t4;
+    },
+    _EvaluateVisitor_visitMediaRule__closure1: function _EvaluateVisitor_visitMediaRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule___closure1: function _EvaluateVisitor_visitMediaRule___closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitMediaRule_closure7: function _EvaluateVisitor_visitMediaRule_closure7(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitStyleRule_closure9: function _EvaluateVisitor_visitStyleRule_closure9(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure10: function _EvaluateVisitor_visitStyleRule_closure10() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure12: function _EvaluateVisitor_visitStyleRule_closure12(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitStyleRule__closure1: function _EvaluateVisitor_visitStyleRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitStyleRule_closure11: function _EvaluateVisitor_visitStyleRule_closure11() {
+    },
+    _EvaluateVisitor_visitStyleRule_closure13: function _EvaluateVisitor_visitStyleRule_closure13() {
+    },
+    _EvaluateVisitor_visitSupportsRule_closure3: function _EvaluateVisitor_visitSupportsRule_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule__closure1: function _EvaluateVisitor_visitSupportsRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitSupportsRule_closure4: function _EvaluateVisitor_visitSupportsRule_closure4() {
+    },
+    _EvaluateVisitor__visitSupportsCondition_closure1: function _EvaluateVisitor__visitSupportsCondition_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure5: function _EvaluateVisitor_visitVariableDeclaration_closure5(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure6: function _EvaluateVisitor_visitVariableDeclaration_closure6(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitVariableDeclaration_closure7: function _EvaluateVisitor_visitVariableDeclaration_closure7(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.value = t2;
+    },
+    _EvaluateVisitor_visitUseRule_closure1: function _EvaluateVisitor_visitUseRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWarnRule_closure1: function _EvaluateVisitor_visitWarnRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule_closure1: function _EvaluateVisitor_visitWhileRule_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitWhileRule__closure1: function _EvaluateVisitor_visitWhileRule__closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitBinaryOperationExpression_closure1: function _EvaluateVisitor_visitBinaryOperationExpression_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__slash_recommendation1: function _EvaluateVisitor__slash_recommendation1() {
+    },
+    _EvaluateVisitor_visitVariableExpression_closure1: function _EvaluateVisitor_visitVariableExpression_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitUnaryOperationExpression_closure1: function _EvaluateVisitor_visitUnaryOperationExpression_closure1(t0, t1) {
+      this.node = t0;
+      this.operand = t1;
+    },
+    _EvaluateVisitor_visitListExpression_closure1: function _EvaluateVisitor_visitListExpression_closure1(t0) {
+      this.$this = t0;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure5: function _EvaluateVisitor_visitFunctionExpression_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure6: function _EvaluateVisitor_visitFunctionExpression_closure6() {
+    },
+    _EvaluateVisitor_visitFunctionExpression_closure7: function _EvaluateVisitor_visitFunctionExpression_closure7(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor__checkCalculationArguments_check1: function _EvaluateVisitor__checkCalculationArguments_check1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor__visitCalculationExpression_closure1: function _EvaluateVisitor__visitCalculationExpression_closure1(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.node = t2;
+      _.inLegacySassFunction = t3;
+    },
+    _EvaluateVisitor_visitInterpolatedFunctionExpression_closure1: function _EvaluateVisitor_visitInterpolatedFunctionExpression_closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.node = t1;
+      this.$function = t2;
+    },
+    _EvaluateVisitor__runUserDefinedCallable_closure1: function _EvaluateVisitor__runUserDefinedCallable_closure1(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.callable = t1;
+      _.evaluated = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable__closure1: function _EvaluateVisitor__runUserDefinedCallable__closure1(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable___closure1: function _EvaluateVisitor__runUserDefinedCallable___closure1(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.evaluated = t1;
+      _.callable = t2;
+      _.nodeWithSpan = t3;
+      _.run = t4;
+      _.V = t5;
+    },
+    _EvaluateVisitor__runUserDefinedCallable____closure1: function _EvaluateVisitor__runUserDefinedCallable____closure1() {
+    },
+    _EvaluateVisitor__runFunctionCallable_closure1: function _EvaluateVisitor__runFunctionCallable_closure1(t0, t1) {
+      this.$this = t0;
+      this.callable = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure5: function _EvaluateVisitor__runBuiltInCallable_closure5(t0, t1, t2) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+      this.namedSet = t2;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure6: function _EvaluateVisitor__runBuiltInCallable_closure6(t0, t1) {
+      this._box_0 = t0;
+      this.evaluated = t1;
+    },
+    _EvaluateVisitor__runBuiltInCallable_closure7: function _EvaluateVisitor__runBuiltInCallable_closure7() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure7: function _EvaluateVisitor__evaluateArguments_closure7() {
+    },
+    _EvaluateVisitor__evaluateArguments_closure8: function _EvaluateVisitor__evaluateArguments_closure8(t0, t1) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+    },
+    _EvaluateVisitor__evaluateArguments_closure9: function _EvaluateVisitor__evaluateArguments_closure9(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.namedNodes = t3;
+    },
+    _EvaluateVisitor__evaluateArguments_closure10: function _EvaluateVisitor__evaluateArguments_closure10() {
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure7: function _EvaluateVisitor__evaluateMacroArguments_closure7(t0) {
+      this.restArgs = t0;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure8: function _EvaluateVisitor__evaluateMacroArguments_closure8(t0, t1, t2) {
+      this.$this = t0;
+      this.restNodeForSpan = t1;
+      this.restArgs = t2;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure9: function _EvaluateVisitor__evaluateMacroArguments_closure9(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.named = t1;
+      _.restNodeForSpan = t2;
+      _.restArgs = t3;
+    },
+    _EvaluateVisitor__evaluateMacroArguments_closure10: function _EvaluateVisitor__evaluateMacroArguments_closure10(t0, t1, t2) {
+      this.$this = t0;
+      this.keywordRestNodeForSpan = t1;
+      this.keywordRestArgs = t2;
+    },
+    _EvaluateVisitor__addRestMap_closure1: function _EvaluateVisitor__addRestMap_closure1(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.values = t1;
+      _.convert = t2;
+      _.expressionNode = t3;
+      _.map = t4;
+      _.nodeWithSpan = t5;
+    },
+    _EvaluateVisitor__verifyArguments_closure1: function _EvaluateVisitor__verifyArguments_closure1(t0, t1, t2) {
+      this.$arguments = t0;
+      this.positional = t1;
+      this.named = t2;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure3: function _EvaluateVisitor_visitCssAtRule_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssAtRule_closure4: function _EvaluateVisitor_visitCssAtRule_closure4() {
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure3: function _EvaluateVisitor_visitCssKeyframeBlock_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssKeyframeBlock_closure4: function _EvaluateVisitor_visitCssKeyframeBlock_closure4() {
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure5: function _EvaluateVisitor_visitCssMediaRule_closure5(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure6: function _EvaluateVisitor_visitCssMediaRule_closure6(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.mergedQueries = t1;
+      _.node = t2;
+      _.mergedSources = t3;
+    },
+    _EvaluateVisitor_visitCssMediaRule__closure1: function _EvaluateVisitor_visitCssMediaRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule___closure1: function _EvaluateVisitor_visitCssMediaRule___closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssMediaRule_closure7: function _EvaluateVisitor_visitCssMediaRule_closure7(t0) {
+      this.mergedSources = t0;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure4: function _EvaluateVisitor_visitCssStyleRule_closure4(t0, t1, t2) {
+      this.$this = t0;
+      this.rule = t1;
+      this.node = t2;
+    },
+    _EvaluateVisitor_visitCssStyleRule__closure1: function _EvaluateVisitor_visitCssStyleRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssStyleRule_closure3: function _EvaluateVisitor_visitCssStyleRule_closure3() {
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure3: function _EvaluateVisitor_visitCssSupportsRule_closure3(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule__closure1: function _EvaluateVisitor_visitCssSupportsRule__closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _EvaluateVisitor_visitCssSupportsRule_closure4: function _EvaluateVisitor_visitCssSupportsRule_closure4() {
+    },
+    _EvaluateVisitor__performInterpolationHelper_closure1: function _EvaluateVisitor__performInterpolationHelper_closure1(t0) {
+      this.interpolation = t0;
+    },
+    _EvaluateVisitor__serialize_closure1: function _EvaluateVisitor__serialize_closure1(t0, t1) {
+      this.value = t0;
+      this.quote = t1;
+    },
+    _EvaluateVisitor__expressionNode_closure1: function _EvaluateVisitor__expressionNode_closure1(t0, t1) {
+      this.$this = t0;
+      this.expression = t1;
+    },
+    _EvaluateVisitor__withoutSlash_recommendation1: function _EvaluateVisitor__withoutSlash_recommendation1() {
+    },
+    _EvaluateVisitor__stackFrame_closure1: function _EvaluateVisitor__stackFrame_closure1(t0) {
+      this.$this = t0;
+    },
+    _ImportedCssVisitor1: function _ImportedCssVisitor1(t0) {
+      this._evaluate0$_visitor = t0;
+    },
+    _ImportedCssVisitor_visitCssAtRule_closure1: function _ImportedCssVisitor_visitCssAtRule_closure1() {
+    },
+    _ImportedCssVisitor_visitCssMediaRule_closure1: function _ImportedCssVisitor_visitCssMediaRule_closure1(t0) {
+      this.hasBeenMerged = t0;
+    },
+    _ImportedCssVisitor_visitCssStyleRule_closure1: function _ImportedCssVisitor_visitCssStyleRule_closure1() {
+    },
+    _ImportedCssVisitor_visitCssSupportsRule_closure1: function _ImportedCssVisitor_visitCssSupportsRule_closure1() {
+    },
+    _EvaluationContext1: function _EvaluationContext1(t0, t1) {
+      this._evaluate0$_visitor = t0;
+      this._evaluate0$_defaultWarnNodeWithSpan = t1;
+    },
+    EveryCssVisitor0: function EveryCssVisitor0() {
+    },
+    EveryCssVisitor_visitCssAtRule_closure0: function EveryCssVisitor_visitCssAtRule_closure0(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssKeyframeBlock_closure0: function EveryCssVisitor_visitCssKeyframeBlock_closure0(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssMediaRule_closure0: function EveryCssVisitor_visitCssMediaRule_closure0(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssStyleRule_closure0: function EveryCssVisitor_visitCssStyleRule_closure0(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssStylesheet_closure0: function EveryCssVisitor_visitCssStylesheet_closure0(t0) {
+      this.$this = t0;
+    },
+    EveryCssVisitor_visitCssSupportsRule_closure0: function EveryCssVisitor_visitCssSupportsRule_closure0(t0) {
+      this.$this = t0;
+    },
+    throwNodeException(exception, ascii, color, trace) {
+      var wasAscii, jsException, t1, trace0;
+      trace = trace;
+      wasAscii = $._glyphs === B.C_AsciiGlyphSet;
+      $._glyphs = ascii ? B.C_AsciiGlyphSet : B.C_UnicodeGlyphSet;
+      try {
+        t1 = A.callConstructor($.$get$exceptionClass(), [exception, B.JSString_methods.replaceFirst$2(exception.toString$1$color(0, color), "Error: ", "")]);
+        jsException = type$._NodeException._as(t1);
+        trace0 = A.getTrace0(exception);
+        trace = trace0 == null ? trace : trace0;
+        if (trace != null)
+          A.attachJsStack(jsException, trace);
+        A.jsThrow(jsException);
+      } finally {
+        $._glyphs = wasAscii ? B.C_AsciiGlyphSet : B.C_UnicodeGlyphSet;
+      }
+    },
+    _NodeException: function _NodeException() {
+    },
+    exceptionClass_closure: function exceptionClass_closure() {
+    },
+    exceptionClass__closure: function exceptionClass__closure() {
+    },
+    exceptionClass__closure0: function exceptionClass__closure0() {
+    },
+    exceptionClass__closure1: function exceptionClass__closure1() {
+    },
+    SassException$0(message, span, loadedUrls) {
+      return new A.SassException0(loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    MultiSpanSassException$0(message, span, primaryLabel, secondarySpans, loadedUrls) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassException0(primaryLabel, t1, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    SassRuntimeException$0(message, span, trace, loadedUrls) {
+      return new A.SassRuntimeException0(trace, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    MultiSpanSassRuntimeException$0(message, span, primaryLabel, secondarySpans, trace, loadedUrls) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassRuntimeException0(trace, primaryLabel, t1, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    SassFormatException$0(message, span, loadedUrls) {
+      return new A.SassFormatException0(loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    MultiSpanSassFormatException$0(message, span, primaryLabel, secondarySpans, loadedUrls) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassFormatException0(primaryLabel, t1, loadedUrls == null ? B.Set_empty : A.Set_Set$unmodifiable(loadedUrls, type$.Uri), message, span);
+    },
+    SassScriptException$0(message, argumentName) {
+      return new A.SassScriptException0(argumentName == null ? message : "$" + argumentName + ": " + message);
+    },
+    MultiSpanSassScriptException$0(message, primaryLabel, secondarySpans) {
+      var t1 = A.ConstantMap_ConstantMap$from(secondarySpans, type$.FileSpan, type$.String);
+      return new A.MultiSpanSassScriptException0(primaryLabel, t1, message);
+    },
+    SassException0: function SassException0(t0, t1, t2) {
+      this.loadedUrls = t0;
+      this._span_exception$_message = t1;
+      this._span = t2;
+    },
+    MultiSpanSassException0: function MultiSpanSassException0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.primaryLabel = t0;
+      _.secondarySpans = t1;
+      _.loadedUrls = t2;
+      _._span_exception$_message = t3;
+      _._span = t4;
+    },
+    SassRuntimeException0: function SassRuntimeException0(t0, t1, t2, t3) {
+      var _ = this;
+      _.trace = t0;
+      _.loadedUrls = t1;
+      _._span_exception$_message = t2;
+      _._span = t3;
+    },
+    MultiSpanSassRuntimeException0: function MultiSpanSassRuntimeException0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.trace = t0;
+      _.primaryLabel = t1;
+      _.secondarySpans = t2;
+      _.loadedUrls = t3;
+      _._span_exception$_message = t4;
+      _._span = t5;
+    },
+    SassFormatException0: function SassFormatException0(t0, t1, t2) {
+      this.loadedUrls = t0;
+      this._span_exception$_message = t1;
+      this._span = t2;
+    },
+    MultiSpanSassFormatException0: function MultiSpanSassFormatException0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.primaryLabel = t0;
+      _.secondarySpans = t1;
+      _.loadedUrls = t2;
+      _._span_exception$_message = t3;
+      _._span = t4;
+    },
+    SassScriptException0: function SassScriptException0(t0) {
+      this.message = t0;
+    },
+    MultiSpanSassScriptException0: function MultiSpanSassScriptException0(t0, t1, t2) {
+      this.primaryLabel = t0;
+      this.secondarySpans = t1;
+      this.message = t2;
+    },
+    Exports: function Exports() {
+    },
+    LoggerNamespace: function LoggerNamespace() {
+    },
+    _IsCalculationSafeVisitor0: function _IsCalculationSafeVisitor0() {
+    },
+    _IsCalculationSafeVisitor_visitListExpression_closure0: function _IsCalculationSafeVisitor_visitListExpression_closure0(t0) {
+      this.$this = t0;
+    },
+    expressionToCalc0(expression) {
+      var t4,
+        t1 = A._setArrayType([B.C__MakeExpressionCalculationSafe0.visitBinaryOperationExpression$1(expression)], type$.JSArray_Expression_2),
+        t2 = expression.get$span(0),
+        t3 = type$.Expression_2;
+      t1 = A.List_List$unmodifiable(t1, t3);
+      t3 = A.ConstantMap_ConstantMap$from(B.Map_empty14, type$.String, t3);
+      t4 = expression.get$span(0);
+      return new A.FunctionExpression0(null, A.stringReplaceAllUnchecked("calc", "_", "-"), "calc", new A.ArgumentInvocation0(t1, t3, null, null, t2), t4);
+    },
+    _MakeExpressionCalculationSafe0: function _MakeExpressionCalculationSafe0() {
+    },
+    __MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor0: function __MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor0() {
+    },
+    ExtendRule0: function ExtendRule0(t0, t1, t2) {
+      this.selector = t0;
+      this.isOptional = t1;
+      this.span = t2;
+    },
+    Extension0: function Extension0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.extender = t0;
+      _.target = t1;
+      _.mediaContext = t2;
+      _.isOptional = t3;
+      _.span = t4;
+    },
+    Extender0: function Extender0(t0, t1) {
+      this.selector = t0;
+      this.isOriginal = t1;
+      this._extension$_extension = null;
+    },
+    ExtensionStore__extendOrReplace0(selector, source, targets, mode, span) {
+      var t1, t2, t3, t4, t5, t6, t7, t8, _i, complex, compound, t9, t10, t11, _i0, simple, t12, _i1, t13, t14,
+        extender = A.ExtensionStore$_mode0(mode);
+      if (!selector.accept$1(B._IsInvisibleVisitor_true0))
+        extender._extension_store$_originals.addAll$1(0, selector.components);
+      for (t1 = targets.components, t2 = t1.length, t3 = source.components, t4 = t3.length, t5 = type$.ComplexSelector_2, t6 = type$.Extension_2, t7 = type$.SimpleSelector_2, t8 = type$.Map_ComplexSelector_Extension_2, _i = 0; _i < t2; ++_i) {
+        complex = t1[_i];
+        compound = complex.get$singleCompound();
+        if (compound == null)
+          throw A.wrapException(A.SassScriptException$0("Can't extend complex selector " + A.S(complex) + ".", null));
+        t9 = A.LinkedHashMap_LinkedHashMap$_empty(t7, t8);
+        for (t10 = compound.components, t11 = t10.length, _i0 = 0; _i0 < t11; ++_i0) {
+          simple = t10[_i0];
+          t12 = A.LinkedHashMap_LinkedHashMap$_empty(t5, t6);
+          for (_i1 = 0; _i1 < t4; ++_i1) {
+            complex = t3[_i1];
+            complex.get$specificity();
+            t13 = new A.Extender0(complex, false);
+            t14 = new A.Extension0(t13, simple, null, true, span);
+            t13._extension$_extension = t14;
+            t12.$indexSet(0, complex, t14);
+          }
+          t9.$indexSet(0, simple, t12);
+        }
+        selector = extender._extension_store$_extendList$2(selector, t9);
+      }
+      return selector;
+    },
+    ExtensionStore$0() {
+      var t1 = type$.SimpleSelector_2;
+      return new A.ExtensionStore0(A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Set_ModifiableBox_SelectorList_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Map_ComplexSelector_Extension_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.List_Extension_2), A.LinkedHashMap_LinkedHashMap$_empty(type$.ModifiableBox_SelectorList_2, type$.List_CssMediaQuery_2), new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_SimpleSelector_int_2), new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_ComplexSelector_2), B.ExtendMode_normal_normal0);
+    },
+    ExtensionStore$_mode0(_mode) {
+      var t1 = type$.SimpleSelector_2;
+      return new A.ExtensionStore0(A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Set_ModifiableBox_SelectorList_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Map_ComplexSelector_Extension_2), A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.List_Extension_2), A.LinkedHashMap_LinkedHashMap$_empty(type$.ModifiableBox_SelectorList_2, type$.List_CssMediaQuery_2), new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_SimpleSelector_int_2), new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_ComplexSelector_2), _mode);
+    },
+    ExtensionStore0: function ExtensionStore0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._extension_store$_selectors = t0;
+      _._extension_store$_extensions = t1;
+      _._extension_store$_extensionsByExtender = t2;
+      _._extension_store$_mediaContexts = t3;
+      _._extension_store$_sourceSpecificity = t4;
+      _._extension_store$_originals = t5;
+      _._extension_store$_mode = t6;
+    },
+    ExtensionStore_extensionsWhereTarget_closure0: function ExtensionStore_extensionsWhereTarget_closure0() {
+    },
+    ExtensionStore__registerSelector_closure0: function ExtensionStore__registerSelector_closure0() {
+    },
+    ExtensionStore_addExtension_closure2: function ExtensionStore_addExtension_closure2() {
+    },
+    ExtensionStore_addExtension_closure3: function ExtensionStore_addExtension_closure3() {
+    },
+    ExtensionStore_addExtension_closure4: function ExtensionStore_addExtension_closure4(t0) {
+      this.complex = t0;
+    },
+    ExtensionStore__extendExistingExtensions_closure1: function ExtensionStore__extendExistingExtensions_closure1() {
+    },
+    ExtensionStore__extendExistingExtensions_closure2: function ExtensionStore__extendExistingExtensions_closure2() {
+    },
+    ExtensionStore_addExtensions_closure0: function ExtensionStore_addExtensions_closure0() {
+    },
+    ExtensionStore__extendComplex_closure0: function ExtensionStore__extendComplex_closure0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.complex = t2;
+    },
+    ExtensionStore__extendComplex__closure0: function ExtensionStore__extendComplex__closure0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.complex = t2;
+    },
+    ExtensionStore__extendCompound_closure2: function ExtensionStore__extendCompound_closure2() {
+    },
+    ExtensionStore__extendCompound_closure3: function ExtensionStore__extendCompound_closure3() {
+    },
+    ExtensionStore__extendCompound_closure4: function ExtensionStore__extendCompound_closure4(t0) {
+      this.original = t0;
+    },
+    ExtensionStore__extendSimple_withoutPseudo0: function ExtensionStore__extendSimple_withoutPseudo0(t0, t1, t2) {
+      this.$this = t0;
+      this.extensions = t1;
+      this.targetsUsed = t2;
+    },
+    ExtensionStore__extendSimple_closure1: function ExtensionStore__extendSimple_closure1(t0, t1) {
+      this.$this = t0;
+      this.withoutPseudo = t1;
+    },
+    ExtensionStore__extendSimple_closure2: function ExtensionStore__extendSimple_closure2() {
+    },
+    ExtensionStore__extendPseudo_closure4: function ExtensionStore__extendPseudo_closure4() {
+    },
+    ExtensionStore__extendPseudo_closure5: function ExtensionStore__extendPseudo_closure5() {
+    },
+    ExtensionStore__extendPseudo_closure6: function ExtensionStore__extendPseudo_closure6() {
+    },
+    ExtensionStore__extendPseudo_closure7: function ExtensionStore__extendPseudo_closure7(t0) {
+      this.pseudo = t0;
+    },
+    ExtensionStore__extendPseudo_closure8: function ExtensionStore__extendPseudo_closure8(t0, t1) {
+      this.pseudo = t0;
+      this.selector = t1;
+    },
+    ExtensionStore__trim_closure1: function ExtensionStore__trim_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.complex1 = t1;
+    },
+    ExtensionStore__trim_closure2: function ExtensionStore__trim_closure2(t0, t1) {
+      this._box_0 = t0;
+      this.complex1 = t1;
+    },
+    ExtensionStore_clone_closure0: function ExtensionStore_clone_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.newSelectors = t1;
+      _.oldToNewSelectors = t2;
+      _.newMediaContexts = t3;
+    },
+    FiberClass: function FiberClass() {
+    },
+    Fiber: function Fiber() {
+    },
+    JSToDartFileImporter: function JSToDartFileImporter(t0) {
+      this._file0$_findFileUrl = t0;
+    },
+    JSToDartFileImporter_canonicalize_closure: function JSToDartFileImporter_canonicalize_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    FilesystemImporter0: function FilesystemImporter0(t0, t1) {
+      this._filesystem$_loadPath = t0;
+      this._filesystem$_loadPathDeprecated = t1;
+    },
+    FilesystemImporter_canonicalize_closure0: function FilesystemImporter_canonicalize_closure0() {
+    },
+    ForRule$0(variable, from, to, children, span, exclusive) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.ForRule0(variable, from, to, exclusive, span, t1, t2);
+    },
+    ForRule0: function ForRule0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.variable = t0;
+      _.from = t1;
+      _.to = t2;
+      _.isExclusive = t3;
+      _.span = t4;
+      _.children = t5;
+      _.hasDeclarations = t6;
+    },
+    ForwardRule0: function ForwardRule0(t0, t1, t2, t3, t4, t5, t6, t7) {
+      var _ = this;
+      _.url = t0;
+      _.shownMixinsAndFunctions = t1;
+      _.shownVariables = t2;
+      _.hiddenMixinsAndFunctions = t3;
+      _.hiddenVariables = t4;
+      _.prefix = t5;
+      _.configuration = t6;
+      _.span = t7;
+    },
+    ForwardedModuleView_ifNecessary0(inner, rule, $T) {
+      var t1;
+      if (rule.prefix == null)
+        if (rule.shownMixinsAndFunctions == null)
+          if (rule.shownVariables == null) {
+            t1 = rule.hiddenMixinsAndFunctions;
+            t1 = t1 == null ? null : t1._base.get$isEmpty(0);
+            if (t1 === true) {
+              t1 = rule.hiddenVariables;
+              t1 = t1 == null ? null : t1._base.get$isEmpty(0);
+              t1 = t1 === true;
+            } else
+              t1 = false;
+          } else
+            t1 = false;
+        else
+          t1 = false;
+      else
+        t1 = false;
+      if (t1)
+        return inner;
+      else
+        return A.ForwardedModuleView$0(inner, rule, $T);
+    },
+    ForwardedModuleView$0(_inner, _rule, $T) {
+      var t1 = _rule.prefix,
+        t2 = _rule.shownVariables,
+        t3 = _rule.hiddenVariables,
+        t4 = _rule.shownMixinsAndFunctions,
+        t5 = _rule.hiddenMixinsAndFunctions;
+      return new A.ForwardedModuleView0(_inner, _rule, A.ForwardedModuleView__forwardedMap0(_inner.get$variables(), t1, t2, t3, type$.Value_2), A.ForwardedModuleView__forwardedMap0(_inner.get$variableNodes(), t1, t2, t3, type$.AstNode_2), A.ForwardedModuleView__forwardedMap0(_inner.get$functions(_inner), t1, t4, t5, $T), A.ForwardedModuleView__forwardedMap0(_inner.get$mixins(), t1, t4, t5, $T), $T._eval$1("ForwardedModuleView0<0>"));
+    },
+    ForwardedModuleView__forwardedMap0(map, prefix, safelist, blocklist, $V) {
+      var t2,
+        t1 = prefix == null;
+      if (t1)
+        if (safelist == null)
+          t2 = blocklist == null || blocklist._base.get$isEmpty(0);
+        else
+          t2 = false;
+      else
+        t2 = false;
+      if (t2)
+        return map;
+      if (!t1)
+        map = new A.PrefixedMapView0(map, prefix, $V._eval$1("PrefixedMapView0<0>"));
+      if (safelist != null)
+        map = new A.LimitedMapView0(map, safelist._base.intersection$1(new A.MapKeySet(map, type$.MapKeySet_nullable_Object)), type$.$env_1_1_String._bind$1($V)._eval$1("LimitedMapView0<1,2>"));
+      else if (blocklist != null && blocklist._base.get$isNotEmpty(0))
+        map = A.LimitedMapView$blocklist0(map, blocklist, type$.String, $V);
+      return map;
+    },
+    ForwardedModuleView0: function ForwardedModuleView0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._forwarded_view0$_inner = t0;
+      _._forwarded_view0$_rule = t1;
+      _.variables = t2;
+      _.variableNodes = t3;
+      _.functions = t4;
+      _.mixins = t5;
+      _.$ti = t6;
+    },
+    FunctionExpression0: function FunctionExpression0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.namespace = t0;
+      _.name = t1;
+      _.originalName = t2;
+      _.$arguments = t3;
+      _.span = t4;
+    },
+    JSFunction0: function JSFunction0() {
+    },
+    SupportsFunction0: function SupportsFunction0(t0, t1, t2) {
+      this.name = t0;
+      this.$arguments = t1;
+      this.span = t2;
+    },
+    functionClass_closure: function functionClass_closure() {
+    },
+    functionClass__closure: function functionClass__closure() {
+    },
+    functionClass__closure0: function functionClass__closure0() {
+    },
+    SassFunction0: function SassFunction0(t0) {
+      this.callable = t0;
+    },
+    FunctionRule$0($name, $arguments, children, span, comment) {
+      var t1 = A.stringReplaceAllUnchecked($name, "_", "-"),
+        t2 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure0());
+      return new A.FunctionRule0(t1, $name, $arguments, span, t2, t3);
+    },
+    FunctionRule0: function FunctionRule0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.name = t0;
+      _.originalName = t1;
+      _.$arguments = t2;
+      _.span = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    unifyComplex0(complexes, span) {
+      var t2, trailingCombinator, leadingCombinator, unifiedBase, t3, t4, _0_6_isSet, _0_6, t5, newLeadingCombinator, base, _1_1, newTrailingCombinator, _i, t6, t7, t8, _null = null,
+        t1 = J.getInterceptor$asx(complexes);
+      if (t1.get$length(complexes) === 1)
+        return complexes;
+      for (t2 = t1.get$iterator(complexes), trailingCombinator = _null, leadingCombinator = trailingCombinator, unifiedBase = leadingCombinator; t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        if (t3.accept$1(B.C__IsUselessVisitor0))
+          return _null;
+        t4 = t3.components;
+        _0_6_isSet = t4.length === 1;
+        if (_0_6_isSet) {
+          _0_6 = t3.leadingCombinators;
+          t5 = _0_6.length === 1;
+        } else {
+          _0_6 = _null;
+          t5 = false;
+        }
+        if (t5) {
+          newLeadingCombinator = (_0_6_isSet ? _0_6 : t3.leadingCombinators)[0];
+          if (leadingCombinator == null)
+            leadingCombinator = newLeadingCombinator;
+          else if (!(leadingCombinator.$ti._is(newLeadingCombinator) && J.$eq$(newLeadingCombinator.value, leadingCombinator.value)))
+            return _null;
+        }
+        base = B.JSArray_methods.get$last(t4);
+        _1_1 = base.combinators;
+        if (_1_1.length === 1) {
+          newTrailingCombinator = _1_1[0];
+          if (trailingCombinator != null)
+            t3 = !(trailingCombinator.$ti._is(newTrailingCombinator) && J.$eq$(newTrailingCombinator.value, trailingCombinator.value));
+          else
+            t3 = false;
+          if (t3)
+            return _null;
+          trailingCombinator = newTrailingCombinator;
+        }
+        if (unifiedBase == null)
+          unifiedBase = base.selector.components;
+        else
+          for (t3 = base.selector.components, t4 = t3.length, _i = 0; _i < t4; ++_i) {
+            unifiedBase = t3[_i].unify$1(unifiedBase);
+            if (unifiedBase == null)
+              return _null;
+          }
+      }
+      t2 = type$.JSArray_ComplexSelector_2;
+      t3 = A._setArrayType([], t2);
+      for (t4 = t1.get$iterator(complexes); t4.moveNext$0();) {
+        t5 = t4.get$current(t4);
+        t6 = t5.components;
+        t7 = t6.length;
+        if (t7 > 1) {
+          t8 = t5.leadingCombinators;
+          t3.push(A.ComplexSelector$0(t8, B.JSArray_methods.take$1(t6, t7 - 1), t5.span, t5.lineBreak));
+        }
+      }
+      t4 = leadingCombinator == null ? B.List_empty14 : A._setArrayType([leadingCombinator], type$.JSArray_CssValue_Combinator_2);
+      unifiedBase.toString;
+      t5 = A.CompoundSelector$0(unifiedBase, span);
+      t6 = trailingCombinator == null ? B.List_empty14 : A._setArrayType([trailingCombinator], type$.JSArray_CssValue_Combinator_2);
+      base = A.ComplexSelector$0(t4, A._setArrayType([new A.ComplexSelectorComponent0(t5, A.List_List$unmodifiable(t6, type$.CssValue_Combinator_2), span)], type$.JSArray_ComplexSelectorComponent_2), span, t1.any$1(complexes, new A.unifyComplex_closure0()));
+      if (t3.length === 0)
+        t1 = A._setArrayType([base], t2);
+      else {
+        t1 = A.List_List$of(A.IterableExtension_get_exceptLast0(t3), true, type$.ComplexSelector_2);
+        t1.push(B.JSArray_methods.get$last(t3).concatenate$2(base, span));
+      }
+      return A.weave0(t1, span, false);
+    },
+    unifyCompound0(compound1, compound2) {
+      var t1, t2, _i, unified,
+        result = compound2.components;
+      for (t1 = compound1.components, t2 = t1.length, _i = 0; _i < t2; ++_i, result = unified) {
+        unified = t1[_i].unify$1(result);
+        if (unified == null)
+          return null;
+      }
+      return A.CompoundSelector$0(result, compound1.span);
+    },
+    unifyUniversalAndElement0(selector1, selector2) {
+      var namespace, $name, t1,
+        _0_0 = A._namespaceAndName0(selector1, "selector1"),
+        namespace1 = _0_0._0,
+        name1 = _0_0._1,
+        _1_0 = A._namespaceAndName0(selector2, "selector2"),
+        namespace2 = _1_0._0,
+        name2 = _1_0._1;
+      if (namespace1 == namespace2 || namespace2 === "*")
+        namespace = namespace1;
+      else {
+        if (namespace1 !== "*")
+          return null;
+        namespace = namespace2;
+      }
+      if (name1 == name2 || name2 == null)
+        $name = name1;
+      else {
+        if (!(name1 == null || name1 === "*"))
+          return null;
+        $name = name2;
+      }
+      t1 = selector1.span;
+      return $name == null ? new A.UniversalSelector0(namespace, t1) : new A.TypeSelector0(new A.QualifiedName0($name, namespace), t1);
+    },
+    _namespaceAndName0(selector, $name) {
+      var t1, _0_4;
+      $label0$0: {
+        if (selector instanceof A.UniversalSelector0) {
+          t1 = new A._Record_2(selector.namespace, null);
+          break $label0$0;
+        }
+        if (selector instanceof A.TypeSelector0) {
+          _0_4 = selector.name;
+          t1 = new A._Record_2(_0_4.namespace, _0_4.name);
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.ArgumentError$value(selector, $name, string$.must_b));
+      }
+      return t1;
+    },
+    weave0(complexes, span, forceLineBreak) {
+      var complex, t2, prefixes, t3, t4, t5, t6, i, t7, t8, _i, t9, t10, _i0, parentPrefix, t11, t12,
+        t1 = J.getInterceptor$asx(complexes);
+      if (t1.get$length(complexes) === 1) {
+        complex = t1.$index(complexes, 0);
+        if (!forceLineBreak || complex.lineBreak)
+          return complexes;
+        return A._setArrayType([A.ComplexSelector$0(complex.leadingCombinators, complex.components, complex.span, true)], type$.JSArray_ComplexSelector_2);
+      }
+      t2 = type$.JSArray_ComplexSelector_2;
+      prefixes = A._setArrayType([t1.get$first(complexes)], t2);
+      for (t1 = t1.skip$1(complexes, 1), t3 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t3._eval$1("ListIterator<ListIterable.E>")), t4 = type$.ComplexSelectorComponent_2, t3 = t3._eval$1("ListIterable.E"); t1.moveNext$0();) {
+        t5 = t1.__internal$_current;
+        if (t5 == null)
+          t5 = t3._as(t5);
+        t6 = t5.components;
+        if (t6.length === 1) {
+          for (i = 0; i < prefixes.length; ++i)
+            prefixes[i] = prefixes[i].concatenate$3$forceLineBreak(t5, span, forceLineBreak);
+          continue;
+        }
+        t7 = A._setArrayType([], t2);
+        for (t8 = prefixes.length, _i = 0; _i < prefixes.length; prefixes.length === t8 || (0, A.throwConcurrentModificationError)(prefixes), ++_i) {
+          t9 = A._weaveParents0(prefixes[_i], t5, span);
+          if (t9 == null)
+            t9 = B.List_empty15;
+          t10 = t9.length;
+          _i0 = 0;
+          for (; _i0 < t9.length; t9.length === t10 || (0, A.throwConcurrentModificationError)(t9), ++_i0) {
+            parentPrefix = t9[_i0];
+            t11 = B.JSArray_methods.get$last(t6);
+            t12 = A.List_List$of(parentPrefix.components, true, t4);
+            t12.push(t11);
+            t11 = parentPrefix.lineBreak || forceLineBreak;
+            t7.push(A.ComplexSelector$0(parentPrefix.leadingCombinators, t12, span, t11));
+          }
+        }
+        prefixes = t7;
+      }
+      return prefixes;
+    },
+    _weaveParents0(prefix, base, span) {
+      var t1, queue1, queue2, trailingCombinators, _0_1, _0_3, _0_3_isSet, rootish1, t2, rootish2, _0_30, rootish, t3, rootish_case_0, t0, rootish_case_1, groups1, groups2, lcs, choices, t4, _i, group, t5, t6, t7, _i0, chunk, t8, t9, _null = null,
+        leadingCombinators = A._mergeLeadingCombinators0(prefix.leadingCombinators, base.leadingCombinators);
+      if (leadingCombinators == null)
+        return _null;
+      t1 = type$.ComplexSelectorComponent_2;
+      queue1 = A.QueueList_QueueList$from(prefix.components, t1);
+      queue2 = A.QueueList_QueueList$from(A.IterableExtension_get_exceptLast0(base.components), t1);
+      trailingCombinators = A._mergeTrailingCombinators0(queue1, queue2, span, _null);
+      if (trailingCombinators == null)
+        return _null;
+      $label0$0: {
+        _0_1 = A._firstIfRootish0(queue1);
+        _0_3 = A._firstIfRootish0(queue2);
+        _0_3_isSet = _0_1 != null;
+        if (_0_3_isSet) {
+          rootish1 = _0_1 == null ? t1._as(_0_1) : _0_1;
+          t2 = _0_3 != null;
+          if (t2)
+            rootish2 = _0_3 == null ? t1._as(_0_3) : _0_3;
+          else
+            rootish2 = _null;
+          _0_30 = _0_3;
+        } else {
+          rootish2 = _null;
+          rootish1 = rootish2;
+          _0_30 = rootish1;
+          t2 = false;
+        }
+        if (t2) {
+          rootish = A.unifyCompound0(rootish1.selector, rootish2.selector);
+          if (rootish == null)
+            return _null;
+          t1 = rootish1.combinators;
+          t2 = rootish1.span;
+          t3 = type$.CssValue_Combinator_2;
+          queue1.addFirst$1(new A.ComplexSelectorComponent0(rootish, A.List_List$unmodifiable(t1, t3), t2));
+          queue2.addFirst$1(new A.ComplexSelectorComponent0(rootish, A.List_List$unmodifiable(rootish2.combinators, t3), t2));
+          break $label0$0;
+        }
+        if (_0_1 != null) {
+          rootish_case_0 = _0_1;
+          if (_0_3_isSet)
+            t2 = _0_30;
+          else {
+            t2 = _0_3;
+            _0_30 = t2;
+            _0_3_isSet = true;
+          }
+          t2 = t2 == null;
+          t3 = t2 ? rootish_case_0 : _null;
+          t0 = t3;
+          t3 = t2;
+          t2 = t0;
+        } else {
+          t2 = _null;
+          t3 = false;
+        }
+        if (!t3)
+          if (_0_1 == null) {
+            if (_0_3_isSet)
+              t3 = _0_30;
+            else {
+              t3 = _0_3;
+              _0_30 = t3;
+              _0_3_isSet = true;
+            }
+            t3 = t3 != null;
+            if (t3) {
+              rootish_case_1 = _0_3_isSet ? _0_30 : _0_3;
+              if (rootish_case_1 == null)
+                rootish_case_1 = t1._as(rootish_case_1);
+              t1 = rootish_case_1;
+            } else
+              t1 = t2;
+            t2 = t3;
+          } else {
+            t1 = t2;
+            t2 = false;
+          }
+        else {
+          t1 = t2;
+          t2 = true;
+        }
+        if (t2) {
+          queue1.addFirst$1(t1);
+          queue2.addFirst$1(t1);
+        }
+      }
+      groups1 = A._groupSelectors0(queue1);
+      groups2 = A._groupSelectors0(queue2);
+      t1 = type$.List_ComplexSelectorComponent_2;
+      lcs = A.longestCommonSubsequence0(groups2, groups1, new A._weaveParents_closure3(span), t1);
+      choices = A._setArrayType([], type$.JSArray_List_Iterable_ComplexSelectorComponent_2);
+      for (t2 = lcs.length, t3 = type$.JSArray_Iterable_ComplexSelectorComponent_2, t4 = type$.JSArray_ComplexSelectorComponent_2, _i = 0; _i < lcs.length; lcs.length === t2 || (0, A.throwConcurrentModificationError)(lcs), ++_i) {
+        group = lcs[_i];
+        t5 = A._setArrayType([], t3);
+        for (t6 = A._chunks0(groups1, groups2, new A._weaveParents_closure4(group), t1), t7 = t6.length, _i0 = 0; _i0 < t6.length; t6.length === t7 || (0, A.throwConcurrentModificationError)(t6), ++_i0) {
+          chunk = t6[_i0];
+          t8 = A._setArrayType([], t4);
+          for (t9 = B.JSArray_methods.get$iterator(chunk); t9.moveNext$0();)
+            B.JSArray_methods.addAll$1(t8, t9.get$current(0));
+          t5.push(t8);
+        }
+        choices.push(t5);
+        choices.push(A._setArrayType([group], t3));
+        groups1.removeFirst$0();
+        groups2.removeFirst$0();
+      }
+      t2 = A._setArrayType([], t3);
+      for (t1 = A._chunks0(groups1, groups2, new A._weaveParents_closure5(), t1), t3 = t1.length, _i = 0; _i < t1.length; t1.length === t3 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        chunk = t1[_i];
+        t5 = A._setArrayType([], t4);
+        for (t6 = B.JSArray_methods.get$iterator(chunk); t6.moveNext$0();)
+          B.JSArray_methods.addAll$1(t5, t6.get$current(0));
+        t2.push(t5);
+      }
+      choices.push(t2);
+      B.JSArray_methods.addAll$1(choices, trailingCombinators);
+      t1 = A._setArrayType([], type$.JSArray_ComplexSelector_2);
+      for (t2 = J.get$iterator$ax(A.paths0(new A.WhereIterable(choices, new A._weaveParents_closure6(), type$.WhereIterable_List_Iterable_ComplexSelectorComponent_2), type$.Iterable_ComplexSelectorComponent_2)), t3 = !prefix.lineBreak, t5 = base.lineBreak; t2.moveNext$0();) {
+        t6 = t2.get$current(t2);
+        t7 = A._setArrayType([], t4);
+        for (t6 = J.get$iterator$ax(t6); t6.moveNext$0();)
+          B.JSArray_methods.addAll$1(t7, t6.get$current(t6));
+        t1.push(A.ComplexSelector$0(leadingCombinators, t7, span, !t3 || t5));
+      }
+      return t1;
+    },
+    _firstIfRootish0(queue) {
+      var first, t1, t2, _i, simple, t3;
+      if (queue.get$length(0) >= 1) {
+        first = queue.$index(0, 0);
+        for (t1 = first.selector.components, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+          simple = t1[_i];
+          if (simple instanceof A.PseudoSelector0)
+            if (simple.isClass)
+              t3 = $._rootishPseudoClasses0.contains$1(0, simple.normalizedName);
+            else
+              t3 = false;
+          else
+            t3 = false;
+          if (t3) {
+            queue.removeFirst$0();
+            return first;
+          }
+        }
+      }
+      return null;
+    },
+    _mergeLeadingCombinators0(combinators1, combinators2) {
+      var _0_4, t1, _0_7_isSet, _0_7, t2, _0_11_isSet, _0_11, _0_4_isSet, combinators, _null = null;
+      $label0$0: {
+        _0_4 = combinators2;
+        t1 = type$.List_CssValue_Combinator_2;
+        _0_7_isSet = t1._is(combinators1);
+        if (_0_7_isSet) {
+          _0_7 = combinators1.length;
+          t2 = _0_7;
+          t2 = t2 > 1;
+        } else {
+          _0_7 = _null;
+          t2 = false;
+        }
+        if (!t2) {
+          t2 = _0_4;
+          _0_11_isSet = t1._is(t2);
+          if (_0_11_isSet) {
+            t2 = _0_4;
+            _0_11 = (t2 == null ? t1._as(t2) : t2).length;
+            t2 = _0_11;
+            _0_4_isSet = true;
+            t2 = t2 > 1;
+          } else {
+            _0_11 = _null;
+            _0_4_isSet = true;
+            t2 = false;
+          }
+        } else {
+          _0_11 = _null;
+          _0_4_isSet = true;
+          _0_11_isSet = false;
+          t2 = true;
+        }
+        if (t2) {
+          t1 = _null;
+          break $label0$0;
+        }
+        if (t1._is(combinators1)) {
+          if (_0_7_isSet)
+            t2 = _0_7;
+          else {
+            _0_7 = combinators1.length;
+            t2 = _0_7;
+          }
+          t2 = t2 <= 0;
+          if (t2)
+            if (_0_4_isSet)
+              combinators = _0_4;
+            else {
+              combinators = combinators2;
+              _0_4 = combinators;
+              _0_4_isSet = true;
+            }
+          else
+            combinators = _null;
+        } else {
+          combinators = _null;
+          t2 = false;
+        }
+        if (!t2) {
+          if (_0_4_isSet)
+            t2 = _0_4;
+          else {
+            t2 = combinators2;
+            _0_4 = t2;
+            _0_4_isSet = true;
+          }
+          if (t1._is(t2)) {
+            if (_0_11_isSet)
+              t1 = _0_11;
+            else {
+              t2 = _0_4_isSet ? _0_4 : combinators2;
+              _0_11 = (t2 == null ? t1._as(t2) : t2).length;
+              t1 = _0_11;
+            }
+            t1 = t1 <= 0;
+          } else
+            t1 = false;
+          combinators = combinators1;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = combinators;
+          break $label0$0;
+        }
+        t1 = B.C_ListEquality.equals$2(0, combinators1, combinators2) ? combinators1 : _null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _mergeTrailingCombinators0(components1, components2, span, result) {
+      var _0_1, t1, _1_1, t2, t3, _4_1, _4_3, _4_4_isSet, _4_4, _4_5, component1, component2, t4, t5, choices, _2_0, _4_4_isSet0, _4_9, _4_6_isSet, _4_6, _4_7, nextComponents, followingComponents, _4_7_isSet, _4_10_isSet, _4_10, _4_5_isSet, next, following, _3_0, siblingComponents_case_0, t0, siblingComponents_case_1, combinator1, combinator2, unified, combinator_case_0, combinatorComponents_case_0, descendantComponents_case_0, t6, combinator_case_1, descendantComponents_case_1, combinatorComponents_case_1, _null = null;
+      if (result == null)
+        result = A.QueueList$(_null, type$.List_List_ComplexSelectorComponent_2);
+      $label0$0: {
+        _0_1 = components1.get$length(0);
+        if (_0_1 >= 1) {
+          t1 = components1.$index(0, _0_1 - 1).combinators;
+          break $label0$0;
+        }
+        t1 = B.List_empty14;
+        break $label0$0;
+      }
+      $label1$1: {
+        _1_1 = components2.get$length(0);
+        if (_1_1 >= 1) {
+          t2 = components2.$index(0, _1_1 - 1).combinators;
+          break $label1$1;
+        }
+        t2 = B.List_empty14;
+        break $label1$1;
+      }
+      t3 = t1.length;
+      if (t3 === 0 && t2.length === 0)
+        return result;
+      if (t3 > 1 || t2.length > 1)
+        return _null;
+      $label2$2: {
+        t3 = A.IterableExtension_get_firstOrNull(t1);
+        t3 = t3 == null ? _null : t3.value;
+        t2 = A.IterableExtension_get_firstOrNull(t2);
+        t2 = [t3, t2 == null ? _null : t2.value, components1, components2];
+        _4_1 = t2[0];
+        _4_3 = B.Combinator_y180 === _4_1;
+        _4_4_isSet = _4_3;
+        if (_4_4_isSet) {
+          _4_4 = t2[1];
+          _4_5 = B.Combinator_y180 === _4_4;
+          t3 = _4_5;
+        } else {
+          _4_4 = _null;
+          _4_5 = _4_4;
+          t3 = false;
+        }
+        if (t3) {
+          component1 = components1.removeLast$0(0);
+          component2 = components2.removeLast$0(0);
+          t2 = component1.selector;
+          t3 = component2.selector;
+          if (A.compoundIsSuperselector0(t2, t3, _null))
+            result.addFirst$1(A._setArrayType([A._setArrayType([component2], type$.JSArray_ComplexSelectorComponent_2)], type$.JSArray_List_ComplexSelectorComponent_2));
+          else {
+            t4 = type$.JSArray_ComplexSelectorComponent_2;
+            t5 = type$.JSArray_List_ComplexSelectorComponent_2;
+            if (A.compoundIsSuperselector0(t3, t2, _null))
+              result.addFirst$1(A._setArrayType([A._setArrayType([component1], t4)], t5));
+            else {
+              choices = A._setArrayType([A._setArrayType([component1, component2], t4), A._setArrayType([component2, component1], t4)], t5);
+              _2_0 = A.unifyCompound0(t2, t3);
+              if (_2_0 != null)
+                choices.push(A._setArrayType([new A.ComplexSelectorComponent0(_2_0, A.List_List$unmodifiable(A._setArrayType([B.JSArray_methods.get$first(t1)], type$.JSArray_CssValue_Combinator_2), type$.CssValue_Combinator_2), span)], t4));
+              result.addFirst$1(choices);
+            }
+          }
+          break $label2$2;
+        }
+        if (_4_3) {
+          if (_4_4_isSet) {
+            t3 = _4_4;
+            _4_4_isSet0 = _4_4_isSet;
+          } else {
+            _4_4 = t2[1];
+            t3 = _4_4;
+            _4_4_isSet0 = true;
+          }
+          _4_9 = B.Combinator_gRV0 === t3;
+          _4_6_isSet = _4_9;
+          if (_4_6_isSet) {
+            _4_6 = t2[2];
+            _4_7 = t2[3];
+            nextComponents = _4_7;
+            followingComponents = _4_6;
+          } else {
+            nextComponents = _null;
+            followingComponents = nextComponents;
+            _4_7 = followingComponents;
+            _4_6 = _4_7;
+          }
+          t3 = _4_6_isSet;
+          _4_7_isSet = t3;
+        } else {
+          nextComponents = _null;
+          followingComponents = nextComponents;
+          _4_7 = followingComponents;
+          _4_6 = _4_7;
+          _4_9 = _4_6;
+          _4_4_isSet0 = _4_4_isSet;
+          _4_6_isSet = false;
+          _4_7_isSet = false;
+          t3 = false;
+        }
+        _4_10_isSet = !t3;
+        if (_4_10_isSet) {
+          _4_10 = B.Combinator_gRV0 === _4_1;
+          t3 = _4_10;
+          if (t3) {
+            if (_4_4_isSet) {
+              t3 = _4_5;
+              _4_5_isSet = _4_4_isSet;
+              _4_4_isSet = _4_4_isSet0;
+            } else {
+              if (_4_4_isSet0) {
+                t3 = _4_4;
+                _4_4_isSet = _4_4_isSet0;
+              } else {
+                _4_4 = t2[1];
+                t3 = _4_4;
+                _4_4_isSet = true;
+              }
+              _4_5 = B.Combinator_y180 === t3;
+              t3 = _4_5;
+              _4_5_isSet = true;
+            }
+            if (t3) {
+              if (_4_6_isSet)
+                nextComponents = _4_6;
+              else {
+                _4_6 = t2[2];
+                nextComponents = _4_6;
+                _4_6_isSet = true;
+              }
+              if (_4_7_isSet)
+                followingComponents = _4_7;
+              else {
+                _4_7 = t2[3];
+                followingComponents = _4_7;
+                _4_7_isSet = true;
+              }
+            }
+          } else {
+            _4_5_isSet = _4_4_isSet;
+            _4_4_isSet = _4_4_isSet0;
+            t3 = false;
+          }
+        } else {
+          _4_10 = _null;
+          _4_5_isSet = _4_4_isSet;
+          _4_4_isSet = _4_4_isSet0;
+          t3 = true;
+        }
+        if (t3) {
+          next = nextComponents.removeLast$0(0);
+          following = followingComponents.removeLast$0(0);
+          t1 = following.selector;
+          t2 = next.selector;
+          t3 = type$.JSArray_ComplexSelectorComponent_2;
+          t4 = type$.JSArray_List_ComplexSelectorComponent_2;
+          if (A.compoundIsSuperselector0(t1, t2, _null))
+            result.addFirst$1(A._setArrayType([A._setArrayType([next], t3)], t4));
+          else {
+            t4 = A._setArrayType([A._setArrayType([following, next], t3)], t4);
+            _3_0 = A.unifyCompound0(t1, t2);
+            if (_3_0 != null)
+              t4.push(A._setArrayType([new A.ComplexSelectorComponent0(_3_0, A.List_List$unmodifiable(next.combinators, type$.CssValue_Combinator_2), span)], t3));
+            result.addFirst$1(t4);
+          }
+          break $label2$2;
+        }
+        if (B.Combinator_8I80 === _4_1) {
+          if (_4_3)
+            t3 = _4_9;
+          else {
+            if (_4_4_isSet)
+              t3 = _4_4;
+            else {
+              _4_4 = t2[1];
+              t3 = _4_4;
+              _4_4_isSet = true;
+            }
+            _4_9 = B.Combinator_gRV0 === t3;
+            t3 = _4_9;
+          }
+          if (!t3)
+            if (_4_5_isSet)
+              t3 = _4_5;
+            else {
+              if (_4_4_isSet)
+                t3 = _4_4;
+              else {
+                _4_4 = t2[1];
+                t3 = _4_4;
+                _4_4_isSet = true;
+              }
+              _4_5 = B.Combinator_y180 === t3;
+              t3 = _4_5;
+            }
+          else
+            t3 = true;
+          if (t3) {
+            if (_4_7_isSet)
+              siblingComponents_case_0 = _4_7;
+            else {
+              _4_7 = t2[3];
+              siblingComponents_case_0 = _4_7;
+              _4_7_isSet = true;
+            }
+            t4 = siblingComponents_case_0;
+          } else
+            t4 = _null;
+          t0 = t4;
+          t4 = t3;
+          t3 = t0;
+        } else {
+          t3 = _null;
+          t4 = false;
+        }
+        if (!t4) {
+          if (_4_10_isSet)
+            t4 = _4_10;
+          else {
+            _4_10 = B.Combinator_gRV0 === _4_1;
+            t4 = _4_10;
+          }
+          if (!t4)
+            t4 = _4_3;
+          else
+            t4 = true;
+          if (t4) {
+            if (_4_4_isSet)
+              t4 = _4_4;
+            else {
+              _4_4 = t2[1];
+              t4 = _4_4;
+              _4_4_isSet = true;
+            }
+            t4 = B.Combinator_8I80 === t4;
+            if (t4) {
+              if (_4_6_isSet)
+                siblingComponents_case_1 = _4_6;
+              else {
+                _4_6 = t2[2];
+                siblingComponents_case_1 = _4_6;
+                _4_6_isSet = true;
+              }
+              t3 = siblingComponents_case_1;
+            }
+          } else
+            t4 = false;
+        } else
+          t4 = true;
+        if (t4) {
+          result.addFirst$1(A._setArrayType([A._setArrayType([t3.removeLast$0(0)], type$.JSArray_ComplexSelectorComponent_2)], type$.JSArray_List_ComplexSelectorComponent_2));
+          break $label2$2;
+        }
+        t3 = _4_1 == null;
+        t4 = !t3;
+        if (t4) {
+          combinator1 = _4_1;
+          if (_4_4_isSet)
+            t5 = _4_4;
+          else {
+            _4_4 = t2[1];
+            t5 = _4_4;
+            _4_4_isSet = true;
+          }
+          if (t5 != null) {
+            if (_4_4_isSet)
+              combinator2 = _4_4;
+            else {
+              _4_4 = t2[1];
+              combinator2 = _4_4;
+              _4_4_isSet = true;
+            }
+            t5 = combinator1 === (combinator2 == null ? type$.Combinator_2._as(combinator2) : combinator2);
+          } else
+            t5 = false;
+        } else
+          t5 = false;
+        if (t5) {
+          unified = A.unifyCompound0(components1.removeLast$0(0).selector, components2.removeLast$0(0).selector);
+          if (unified == null)
+            return _null;
+          result.addFirst$1(A._setArrayType([A._setArrayType([new A.ComplexSelectorComponent0(unified, A.List_List$unmodifiable(A._setArrayType([B.JSArray_methods.get$first(t1)], type$.JSArray_CssValue_Combinator_2), type$.CssValue_Combinator_2), span)], type$.JSArray_ComplexSelectorComponent_2)], type$.JSArray_List_ComplexSelectorComponent_2));
+          break $label2$2;
+        }
+        if (t4) {
+          combinator_case_0 = _4_1;
+          if (_4_4_isSet)
+            t1 = _4_4;
+          else {
+            _4_4 = t2[1];
+            t1 = _4_4;
+            _4_4_isSet = true;
+          }
+          t1 = t1 == null;
+          if (t1) {
+            if (_4_6_isSet)
+              combinatorComponents_case_0 = _4_6;
+            else {
+              _4_6 = t2[2];
+              combinatorComponents_case_0 = _4_6;
+              _4_6_isSet = true;
+            }
+            if (_4_7_isSet)
+              descendantComponents_case_0 = _4_7;
+            else {
+              _4_7 = t2[3];
+              descendantComponents_case_0 = _4_7;
+              _4_7_isSet = true;
+            }
+            t4 = descendantComponents_case_0;
+            t6 = t4;
+            t4 = combinator_case_0;
+            t5 = combinatorComponents_case_0;
+          } else {
+            t6 = _null;
+            t5 = t6;
+            t4 = t5;
+          }
+          t0 = t6;
+          t6 = t1;
+          t1 = t4;
+          t4 = t5;
+          t5 = t0;
+        } else {
+          t5 = _null;
+          t4 = t5;
+          t1 = t4;
+          t6 = false;
+        }
+        if (!t6)
+          if (t3) {
+            if (_4_4_isSet)
+              t3 = _4_4;
+            else {
+              _4_4 = t2[1];
+              t3 = _4_4;
+              _4_4_isSet = true;
+            }
+            t3 = t3 != null;
+            if (t3) {
+              combinator_case_1 = _4_4_isSet ? _4_4 : t2[1];
+              if (combinator_case_1 == null)
+                combinator_case_1 = type$.Combinator_2._as(combinator_case_1);
+              descendantComponents_case_1 = _4_6_isSet ? _4_6 : t2[2];
+              combinatorComponents_case_1 = _4_7_isSet ? _4_7 : t2[3];
+              t1 = combinatorComponents_case_1;
+              t2 = descendantComponents_case_1;
+              t4 = t2;
+              t2 = t1;
+              t1 = combinator_case_1;
+            } else {
+              t2 = t4;
+              t4 = t5;
+            }
+            t0 = t4;
+            t4 = t3;
+            t3 = t0;
+          } else {
+            t3 = t5;
+            t2 = t4;
+            t4 = false;
+          }
+        else {
+          t3 = t5;
+          t2 = t4;
+          t4 = true;
+        }
+        if (t4) {
+          if (t1 === B.Combinator_8I80) {
+            t1 = A.IterableExtension_get_lastOrNull(t3);
+            t1 = t1 == null ? _null : A.compoundIsSuperselector0(t1.selector, t2.get$last(t2).selector, _null);
+            t1 = t1 === true;
+          } else
+            t1 = false;
+          if (t1)
+            t3.removeLast$0(0);
+          result.addFirst$1(A._setArrayType([A._setArrayType([t2.removeLast$0(0)], type$.JSArray_ComplexSelectorComponent_2)], type$.JSArray_List_ComplexSelectorComponent_2));
+          break $label2$2;
+        }
+        return _null;
+      }
+      return A._mergeTrailingCombinators0(components1, components2, span, result);
+    },
+    _mustUnify0(complex1, complex2) {
+      var t2, t3, t4,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(type$.SimpleSelector_2);
+      for (t2 = J.get$iterator$ax(complex1); t2.moveNext$0();)
+        for (t3 = B.JSArray_methods.get$iterator(t2.get$current(t2).selector.components), t4 = new A.WhereIterator(t3, A.functions0___isUnique$closure()); t4.moveNext$0();)
+          t1.add$1(0, t3.get$current(0));
+      if (t1._collection$_length === 0)
+        return false;
+      return J.any$1$ax(complex2, new A._mustUnify_closure0(t1));
+    },
+    _isUnique0(simple) {
+      var t1;
+      if (!(simple instanceof A.IDSelector0))
+        t1 = simple instanceof A.PseudoSelector0 && !simple.isClass;
+      else
+        t1 = true;
+      return t1;
+    },
+    _chunks0(queue1, queue2, done, $T) {
+      var chunk2, _0_4, _0_5_isSet, _0_1, _0_7, _0_5, chunk, _0_5_isSet0, t2, _null = null,
+        t1 = $T._eval$1("JSArray<0>"),
+        chunk1 = A._setArrayType([], t1);
+      for (; !done.call$1(queue1);)
+        chunk1.push(queue1.removeFirst$0());
+      chunk2 = A._setArrayType([], t1);
+      for (; !done.call$1(queue2);)
+        chunk2.push(queue2.removeFirst$0());
+      $label0$0: {
+        _0_4 = chunk1.length <= 0;
+        _0_5_isSet = _0_4;
+        _0_1 = chunk1;
+        if (_0_5_isSet) {
+          _0_7 = chunk2.length <= 0;
+          t1 = _0_7;
+          _0_5 = chunk2;
+        } else {
+          _0_5 = _null;
+          _0_7 = _0_5;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = A._setArrayType([], $T._eval$1("JSArray<List<0>>"));
+          break $label0$0;
+        }
+        if (_0_4)
+          if (_0_5_isSet) {
+            chunk = _0_5;
+            _0_5_isSet0 = _0_5_isSet;
+          } else {
+            chunk = chunk2;
+            _0_5 = chunk;
+            _0_5_isSet0 = true;
+          }
+        else {
+          chunk = _null;
+          _0_5_isSet0 = _0_5_isSet;
+        }
+        if (!_0_4) {
+          if (_0_5_isSet)
+            t1 = _0_7;
+          else {
+            _0_7 = (_0_5_isSet0 ? _0_5 : chunk2).length <= 0;
+            t1 = _0_7;
+          }
+          chunk = _0_1;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = A._setArrayType([chunk], $T._eval$1("JSArray<List<0>>"));
+          break $label0$0;
+        }
+        t1 = A.List_List$of(chunk1, true, $T);
+        B.JSArray_methods.addAll$1(t1, chunk2);
+        t2 = A.List_List$of(chunk2, true, $T);
+        B.JSArray_methods.addAll$1(t2, chunk1);
+        t2 = A._setArrayType([t1, t2], $T._eval$1("JSArray<List<0>>"));
+        t1 = t2;
+        break $label0$0;
+      }
+      return t1;
+    },
+    paths0(choices, $T) {
+      return J.fold$2$ax(choices, A._setArrayType([A._setArrayType([], $T._eval$1("JSArray<0>"))], $T._eval$1("JSArray<List<0>>")), new A.paths_closure0($T));
+    },
+    _groupSelectors0(complex) {
+      var t2, t3, t4,
+        groups = A.QueueList$(null, type$.List_ComplexSelectorComponent_2),
+        t1 = type$.JSArray_ComplexSelectorComponent_2,
+        group = A._setArrayType([], t1);
+      for (t2 = complex.$ti, t3 = new A.ListIterator(complex, complex.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t3.moveNext$0();) {
+        t4 = t3.__internal$_current;
+        if (t4 == null)
+          t4 = t2._as(t4);
+        group.push(t4);
+        if (t4.combinators.length === 0) {
+          groups._queue_list$_add$1(group);
+          group = A._setArrayType([], t1);
+        }
+      }
+      if (group.length !== 0)
+        groups._queue_list$_add$1(group);
+      return groups;
+    },
+    listIsSuperselector0(list1, list2) {
+      return B.JSArray_methods.every$1(list2, new A.listIsSuperselector_closure0(list1));
+    },
+    _complexIsParentSuperselector0(complex1, complex2) {
+      var t1, base, t2;
+      if (J.get$length$asx(complex1) > J.get$length$asx(complex2))
+        return false;
+      t1 = $.$get$bogusSpan0();
+      base = new A.ComplexSelectorComponent0(A.CompoundSelector$0(A._setArrayType([new A.PlaceholderSelector0("<temp>", t1)], type$.JSArray_SimpleSelector_2), t1), A.List_List$unmodifiable(B.List_empty14, type$.CssValue_Combinator_2), t1);
+      t1 = type$.ComplexSelectorComponent_2;
+      t2 = A.List_List$of(complex1, true, t1);
+      t2.push(base);
+      t1 = A.List_List$of(complex2, true, t1);
+      t1.push(base);
+      return A.complexIsSuperselector0(t2, t1);
+    },
+    complexIsSuperselector0(complex1, complex2) {
+      var t1, t2, t3, i1, i2, previousCombinator, remaining1, t4, remaining2, component1, t5, parents, endOfSubselector, component2, combinator1;
+      if (B.JSArray_methods.get$last(complex1).combinators.length !== 0)
+        return false;
+      if (B.JSArray_methods.get$last(complex2).combinators.length !== 0)
+        return false;
+      for (t1 = type$.JSArray_ComplexSelectorComponent_2, t2 = A._arrayInstanceType(complex2), t3 = t2._precomputed1, t2 = t2._eval$1("SubListIterable<1>"), i1 = 0, i2 = 0, previousCombinator = null; true; previousCombinator = combinator1) {
+        remaining1 = complex1.length - i1;
+        t4 = complex2.length;
+        remaining2 = t4 - i2;
+        if (remaining1 === 0 || remaining2 === 0)
+          return false;
+        if (remaining1 > remaining2)
+          return false;
+        component1 = complex1[i1];
+        t5 = component1.combinators;
+        if (t5.length > 1)
+          return false;
+        if (remaining1 === 1) {
+          parents = B.JSArray_methods.sublist$2(complex2, i2, t4 - 1);
+          if (B.JSArray_methods.any$1(parents, new A.complexIsSuperselector_closure1()))
+            return false;
+          return A.compoundIsSuperselector0(component1.selector, B.JSArray_methods.get$last(complex2).selector, parents);
+        }
+        for (t4 = component1.selector, endOfSubselector = i2, parents = null; true;) {
+          component2 = complex2[endOfSubselector];
+          if (component2.combinators.length > 1)
+            return false;
+          if (A.compoundIsSuperselector0(t4, component2.selector, parents))
+            break;
+          ++endOfSubselector;
+          if (endOfSubselector === complex2.length - 1)
+            return false;
+          if (parents == null)
+            parents = A._setArrayType([], t1);
+          parents.push(component2);
+        }
+        if (!A._compatibleWithPreviousCombinator0(previousCombinator, parents == null ? B.List_empty13 : parents))
+          return false;
+        component2 = complex2[endOfSubselector];
+        combinator1 = A.IterableExtension_get_firstOrNull(t5);
+        if (!A._isSupercombinator0(combinator1, A.IterableExtension_get_firstOrNull(component2.combinators)))
+          return false;
+        ++i1;
+        i2 = endOfSubselector + 1;
+        if (complex1.length - i1 === 1) {
+          t4 = combinator1 == null;
+          if (J.$eq$(t4 ? null : combinator1.value, B.Combinator_y180)) {
+            t4 = complex2.length - 1;
+            t5 = new A.SubListIterable(complex2, 0, t4, t2);
+            t5.SubListIterable$3(complex2, 0, t4, t3);
+            if (!t5.skip$1(0, i2).every$1(0, new A.complexIsSuperselector_closure2(combinator1)))
+              return false;
+          } else if (!t4)
+            if (complex2.length - i2 > 1)
+              return false;
+        }
+      }
+    },
+    _compatibleWithPreviousCombinator0(previous, parents) {
+      if (parents.length === 0)
+        return true;
+      if (previous == null)
+        return true;
+      if (previous.value !== B.Combinator_y180)
+        return false;
+      return B.JSArray_methods.every$1(parents, new A._compatibleWithPreviousCombinator_closure0());
+    },
+    _isSupercombinator0(combinator1, combinator2) {
+      var t1, t2;
+      if (!J.$eq$(combinator1, combinator2)) {
+        t1 = combinator1 == null;
+        if (t1)
+          t2 = J.$eq$(combinator2 == null ? null : combinator2.value, B.Combinator_8I80);
+        else
+          t2 = false;
+        if (!t2)
+          if (J.$eq$(t1 ? null : combinator1.value, B.Combinator_y180))
+            t1 = J.$eq$(combinator2 == null ? null : combinator2.value, B.Combinator_gRV0);
+          else
+            t1 = false;
+        else
+          t1 = true;
+      } else
+        t1 = true;
+      return t1;
+    },
+    compoundIsSuperselector0(compound1, compound2, parents) {
+      var t2, pseudo1, index1, t3, pseudo2, index2, _0_50, t4, t5, _i, simple1, _null = null,
+        _0_1 = A._findPseudoElementIndexed0(compound1),
+        _0_5 = A._findPseudoElementIndexed0(compound2),
+        t1 = type$.Record_2_nullable_Object_and_nullable_Object,
+        _0_5_isSet = t1._is(_0_1);
+      if (_0_5_isSet) {
+        t2 = _0_1 == null;
+        pseudo1 = (t2 ? t1._as(_0_1) : _0_1)._0;
+        index1 = (t2 ? t1._as(_0_1) : _0_1)._1;
+        t2 = t1._is(_0_5);
+        if (t2) {
+          t3 = _0_5 == null;
+          pseudo2 = (t3 ? t1._as(_0_5) : _0_5)._0;
+          index2 = (t3 ? t1._as(_0_5) : _0_5)._1;
+        } else {
+          index2 = _null;
+          pseudo2 = index2;
+        }
+        t1 = t2;
+        _0_50 = _0_5;
+      } else {
+        index2 = _null;
+        pseudo2 = index2;
+        index1 = pseudo2;
+        pseudo1 = index1;
+        _0_50 = pseudo1;
+        t1 = false;
+      }
+      if (t1) {
+        if (pseudo1.isSuperselector$1(pseudo2)) {
+          t1 = compound1.components;
+          t2 = type$.int;
+          t3 = A._arrayInstanceType(t1)._precomputed1;
+          t4 = compound2.components;
+          t5 = A._arrayInstanceType(t4)._precomputed1;
+          t1 = A._compoundComponentsIsSuperselector0(A.SubListIterable$(t1, 0, A.checkNotNullable(index1, "count", t2), t3), A.SubListIterable$(t4, 0, A.checkNotNullable(index2, "count", t2), t5), parents) && A._compoundComponentsIsSuperselector0(A.SubListIterable$(t1, index1 + 1, _null, t3), A.SubListIterable$(t4, index2 + 1, _null, t5), parents);
+        } else
+          t1 = false;
+        return t1;
+      }
+      if (_0_1 == null)
+        t1 = (_0_5_isSet ? _0_50 : _0_5) != null;
+      else
+        t1 = true;
+      if (t1)
+        return false;
+      for (t1 = compound1.components, t2 = t1.length, t3 = compound2.components, _i = 0; _i < t2; ++_i) {
+        simple1 = t1[_i];
+        if (simple1 instanceof A.PseudoSelector0)
+          t4 = simple1.selector != null;
+        else
+          t4 = false;
+        if (t4) {
+          if (!A._selectorPseudoIsSuperselector0(simple1, compound2, parents))
+            return false;
+        } else if (!B.JSArray_methods.any$1(t3, simple1.get$isSuperselector()))
+          return false;
+      }
+      return true;
+    },
+    _findPseudoElementIndexed0(compound) {
+      var t1, t2, i, simple;
+      for (t1 = compound.components, t2 = t1.length, i = 0; i < t2; ++i) {
+        simple = t1[i];
+        if (simple instanceof A.PseudoSelector0 && !simple.isClass)
+          return new A._Record_2(simple, i);
+      }
+      return null;
+    },
+    _compoundComponentsIsSuperselector0(compound1, compound2, parents) {
+      var t1;
+      if (compound1.get$length(0) === 0)
+        return true;
+      if (compound2.get$length(0) === 0)
+        compound2 = A._setArrayType([new A.UniversalSelector0("*", $.$get$bogusSpan0())], type$.JSArray_SimpleSelector_2);
+      t1 = $.$get$bogusSpan0();
+      return A.compoundIsSuperselector0(A.CompoundSelector$0(compound1, t1), A.CompoundSelector$0(compound2, t1), parents);
+    },
+    _selectorPseudoIsSuperselector0(pseudo1, compound2, parents) {
+      var selector1 = pseudo1.selector;
+      if (selector1 == null)
+        throw A.wrapException(A.ArgumentError$("Selector " + pseudo1.toString$0(0) + " must have a selector argument.", null));
+      switch (pseudo1.normalizedName) {
+        case "is":
+        case "matches":
+        case "any":
+        case "where":
+          return A._selectorPseudoArgs0(compound2, pseudo1.name, true).any$1(0, new A._selectorPseudoIsSuperselector_closure6(selector1)) || B.JSArray_methods.any$1(selector1.components, new A._selectorPseudoIsSuperselector_closure7(parents, compound2));
+        case "has":
+        case "host":
+        case "host-context":
+          return A._selectorPseudoArgs0(compound2, pseudo1.name, true).any$1(0, new A._selectorPseudoIsSuperselector_closure8(selector1));
+        case "slotted":
+          return A._selectorPseudoArgs0(compound2, pseudo1.name, false).any$1(0, new A._selectorPseudoIsSuperselector_closure9(selector1));
+        case "not":
+          return B.JSArray_methods.every$1(selector1.components, new A._selectorPseudoIsSuperselector_closure10(compound2, pseudo1));
+        case "current":
+          return A._selectorPseudoArgs0(compound2, pseudo1.name, true).any$1(0, new A._selectorPseudoIsSuperselector_closure11(selector1));
+        case "nth-child":
+        case "nth-last-child":
+          return B.JSArray_methods.any$1(compound2.components, new A._selectorPseudoIsSuperselector_closure12(pseudo1, selector1));
+        default:
+          throw A.wrapException("unreachable");
+      }
+    },
+    _selectorPseudoArgs0(compound, $name, isClass) {
+      var t1 = type$.WhereTypeIterable_PseudoSelector_2;
+      return A.IterableNullableExtension_whereNotNull(new A.MappedIterable(new A.WhereIterable(new A.WhereTypeIterable(compound.components, t1), new A._selectorPseudoArgs_closure1(isClass, $name), t1._eval$1("WhereIterable<Iterable.E>")), new A._selectorPseudoArgs_closure2(), t1._eval$1("MappedIterable<Iterable.E,SelectorList0?>")), type$.SelectorList_2);
+    },
+    unifyComplex_closure0: function unifyComplex_closure0() {
+    },
+    _weaveParents_closure3: function _weaveParents_closure3(t0) {
+      this.span = t0;
+    },
+    _weaveParents_closure4: function _weaveParents_closure4(t0) {
+      this.group = t0;
+    },
+    _weaveParents_closure5: function _weaveParents_closure5() {
+    },
+    _weaveParents_closure6: function _weaveParents_closure6() {
+    },
+    _mustUnify_closure0: function _mustUnify_closure0(t0) {
+      this.uniqueSelectors = t0;
+    },
+    _mustUnify__closure0: function _mustUnify__closure0(t0) {
+      this.uniqueSelectors = t0;
+    },
+    paths_closure0: function paths_closure0(t0) {
+      this.T = t0;
+    },
+    paths__closure0: function paths__closure0(t0, t1) {
+      this.paths = t0;
+      this.T = t1;
+    },
+    paths___closure0: function paths___closure0(t0, t1) {
+      this.option = t0;
+      this.T = t1;
+    },
+    listIsSuperselector_closure0: function listIsSuperselector_closure0(t0) {
+      this.list1 = t0;
+    },
+    listIsSuperselector__closure0: function listIsSuperselector__closure0(t0) {
+      this.complex1 = t0;
+    },
+    complexIsSuperselector_closure1: function complexIsSuperselector_closure1() {
+    },
+    complexIsSuperselector_closure2: function complexIsSuperselector_closure2(t0) {
+      this.combinator1 = t0;
+    },
+    _compatibleWithPreviousCombinator_closure0: function _compatibleWithPreviousCombinator_closure0() {
+    },
+    _selectorPseudoIsSuperselector_closure6: function _selectorPseudoIsSuperselector_closure6(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure7: function _selectorPseudoIsSuperselector_closure7(t0, t1) {
+      this.parents = t0;
+      this.compound2 = t1;
+    },
+    _selectorPseudoIsSuperselector_closure8: function _selectorPseudoIsSuperselector_closure8(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure9: function _selectorPseudoIsSuperselector_closure9(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure10: function _selectorPseudoIsSuperselector_closure10(t0, t1) {
+      this.compound2 = t0;
+      this.pseudo1 = t1;
+    },
+    _selectorPseudoIsSuperselector__closure0: function _selectorPseudoIsSuperselector__closure0(t0, t1) {
+      this.complex = t0;
+      this.pseudo1 = t1;
+    },
+    _selectorPseudoIsSuperselector___closure1: function _selectorPseudoIsSuperselector___closure1(t0) {
+      this.simple2 = t0;
+    },
+    _selectorPseudoIsSuperselector___closure2: function _selectorPseudoIsSuperselector___closure2(t0) {
+      this.simple2 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure11: function _selectorPseudoIsSuperselector_closure11(t0) {
+      this.selector1 = t0;
+    },
+    _selectorPseudoIsSuperselector_closure12: function _selectorPseudoIsSuperselector_closure12(t0, t1) {
+      this.pseudo1 = t0;
+      this.selector1 = t1;
+    },
+    _selectorPseudoArgs_closure1: function _selectorPseudoArgs_closure1(t0, t1) {
+      this.isClass = t0;
+      this.name = t1;
+    },
+    _selectorPseudoArgs_closure2: function _selectorPseudoArgs_closure2() {
+    },
+    globalFunctions_closure0: function globalFunctions_closure0() {
+    },
+    IDSelector0: function IDSelector0(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    IDSelector_unify_closure0: function IDSelector_unify_closure0(t0) {
+      this.$this = t0;
+    },
+    IfExpression0: function IfExpression0(t0, t1) {
+      this.$arguments = t0;
+      this.span = t1;
+    },
+    IfClause$0(expression, children) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2);
+      return new A.IfClause0(expression, t1, B.JSArray_methods.any$1(t1, new A.IfRuleClause$__closure0()));
+    },
+    ElseClause$0(children) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2);
+      return new A.ElseClause0(t1, B.JSArray_methods.any$1(t1, new A.IfRuleClause$__closure0()));
+    },
+    IfRule0: function IfRule0(t0, t1, t2) {
+      this.clauses = t0;
+      this.lastClause = t1;
+      this.span = t2;
+    },
+    IfRule_toString_closure0: function IfRule_toString_closure0() {
+    },
+    IfRuleClause0: function IfRuleClause0() {
+    },
+    IfRuleClause$__closure0: function IfRuleClause$__closure0() {
+    },
+    IfRuleClause$___closure0: function IfRuleClause$___closure0() {
+    },
+    IfClause0: function IfClause0(t0, t1, t2) {
+      this.expression = t0;
+      this.children = t1;
+      this.hasDeclarations = t2;
+    },
+    ElseClause0: function ElseClause0(t0, t1) {
+      this.children = t0;
+      this.hasDeclarations = t1;
+    },
+    jsToDartList(list) {
+      return self.immutable.isOrderedMap(list) ? J.toArray$0$x(type$.ImmutableList._as(list)) : type$.List_dynamic._as(list);
+    },
+    dartMapToImmutableMap(dartMap) {
+      var t1, t2,
+        immutableMap = J.asMutable$0$x(new self.immutable.OrderedMap());
+      for (t1 = A.MapExtensions_get_pairs0(dartMap, type$.Object, type$.nullable_Object), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        immutableMap = J.$set$2$x(immutableMap, t2._0, t2._1);
+      }
+      return J.asImmutable$0$x(immutableMap);
+    },
+    immutableMapToDartMap(immutableMap) {
+      var dartMap = A.LinkedHashMap_LinkedHashMap$_empty(type$.Object, type$.nullable_Object);
+      J.forEach$1$ax(immutableMap, A.allowInterop(new A.immutableMapToDartMap_closure(dartMap)));
+      return dartMap;
+    },
+    ImmutableList0: function ImmutableList0() {
+    },
+    ImmutableMap0: function ImmutableMap0() {
+    },
+    immutableMapToDartMap_closure: function immutableMapToDartMap_closure(t0) {
+      this.dartMap = t0;
+    },
+    NodeImporter__addSassPath(includePaths) {
+      return new A._SyncStarIterable(A.NodeImporter__addSassPath$body(includePaths), type$._SyncStarIterable_String);
+    },
+    NodeImporter__addSassPath$body($async$includePaths) {
+      return function() {
+        var includePaths = $async$includePaths;
+        var $async$goto = 0, $async$handler = 2, $async$currentError, sassPath, t1;
+        return function $async$NodeImporter__addSassPath($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                $async$goto = 3;
+                return $async$iterator._yieldStar$1(includePaths);
+              case 3:
+                // after yield
+                sassPath = A.getEnvironmentVariable0("SASS_PATH");
+                if (sassPath == null) {
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+                t1 = A.isNodeJs() ? self.process : null;
+                $async$goto = 4;
+                return $async$iterator._yieldStar$1(A._setArrayType(sassPath.split(J.$eq$(t1 == null ? null : J.get$platform$x(t1), "win32") ? ";" : ":"), type$.JSArray_String));
+              case 4:
+                // after yield
+              case 1:
+                // return
+                return 0;
+              case 2:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    NodeImporter: function NodeImporter(t0, t1, t2) {
+      this._implementation$_options = t0;
+      this._includePaths = t1;
+      this._implementation$_importers = t2;
+    },
+    NodeImporter_load_closure: function NodeImporter_load_closure(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.forImport = t2;
+      _.url = t3;
+      _.previousString = t4;
+    },
+    NodeImporter__tryPath_closure: function NodeImporter__tryPath_closure(t0) {
+      this.path = t0;
+    },
+    NodeImporter__tryPath_closure0: function NodeImporter__tryPath_closure0() {
+    },
+    NodeImporter__callImporterAsync_closure: function NodeImporter__callImporterAsync_closure(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.forImport = t2;
+      _.url = t3;
+      _.previousString = t4;
+      _.completer = t5;
+    },
+    ModifiableCssImport0: function ModifiableCssImport0(t0, t1, t2) {
+      var _ = this;
+      _.url = t0;
+      _.modifiers = t1;
+      _.span = t2;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    ImportCache$0(importers, loadPaths, logger, packageConfig) {
+      var t1 = type$.nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl_2,
+        t2 = type$.Record_3_Importer_and_Uri_and_bool_forImport_2,
+        t3 = type$.Uri,
+        t4 = A.ImportCache__toImporters0(importers, loadPaths, packageConfig);
+      return new A.ImportCache0(t4, logger, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.nullable_Stylesheet_2), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.ImporterResult_2));
+    },
+    ImportCache$none(logger) {
+      var t1 = type$.nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl_2,
+        t2 = type$.Record_3_Importer_and_Uri_and_bool_forImport_2,
+        t3 = type$.Uri;
+      return new A.ImportCache0(B.List_empty23, logger, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t1), A.LinkedHashMap_LinkedHashMap$_empty(t2, t3), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.nullable_Stylesheet_2), A.LinkedHashMap_LinkedHashMap$_empty(t3, type$.ImporterResult_2));
+    },
+    ImportCache__toImporters0(importers, loadPaths, packageConfig) {
+      var t1, t2, t3, t4, _i, path, _null = null,
+        sassPath = A.getEnvironmentVariable0("SASS_PATH");
+      if (A.isBrowser()) {
+        t1 = A._setArrayType([], type$.JSArray_Importer_2);
+        if (importers != null)
+          B.JSArray_methods.addAll$1(t1, importers);
+        return t1;
+      }
+      t1 = A._setArrayType([], type$.JSArray_Importer_2);
+      if (importers != null)
+        B.JSArray_methods.addAll$1(t1, importers);
+      if (loadPaths != null)
+        for (t2 = J.get$iterator$ax(loadPaths); t2.moveNext$0();) {
+          t3 = t2.get$current(t2);
+          t1.push(new A.FilesystemImporter0($.$get$context().absolute$15(t3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+        }
+      if (sassPath != null) {
+        t2 = A.isNodeJs() ? self.process : _null;
+        t3 = sassPath.split(J.$eq$(t2 == null ? _null : J.get$platform$x(t2), "win32") ? ";" : ":");
+        t4 = t3.length;
+        _i = 0;
+        for (; _i < t4; ++_i) {
+          path = t3[_i];
+          t1.push(new A.FilesystemImporter0($.$get$context().absolute$15(path, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), false));
+        }
+      }
+      return t1;
+    },
+    ImportCache0: function ImportCache0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._import_cache$_importers = t0;
+      _._import_cache$_logger = t1;
+      _._import_cache$_canonicalizeCache = t2;
+      _._import_cache$_perImporterCanonicalizeCache = t3;
+      _._import_cache$_nonCanonicalRelativeUrls = t4;
+      _._import_cache$_importCache = t5;
+      _._import_cache$_resultsCache = t6;
+    },
+    ImportCache_canonicalize_closure0: function ImportCache_canonicalize_closure0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.baseImporter = t1;
+      _.resolvedUrl = t2;
+      _.baseUrl = t3;
+      _.forImport = t4;
+      _.key = t5;
+      _.url = t6;
+    },
+    ImportCache__canonicalize_closure0: function ImportCache__canonicalize_closure0(t0, t1) {
+      this.importer = t0;
+      this.url = t1;
+    },
+    ImportCache_importCanonical_closure0: function ImportCache_importCanonical_closure0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.importer = t1;
+      _.canonicalUrl = t2;
+      _.originalUrl = t3;
+      _.quiet = t4;
+    },
+    ImportCache_humanize_closure3: function ImportCache_humanize_closure3(t0) {
+      this.canonicalUrl = t0;
+    },
+    ImportCache_humanize_closure4: function ImportCache_humanize_closure4() {
+    },
+    ImportCache_humanize_closure5: function ImportCache_humanize_closure5() {
+    },
+    ImportCache_humanize_closure6: function ImportCache_humanize_closure6(t0) {
+      this.canonicalUrl = t0;
+    },
+    ImportRule0: function ImportRule0(t0, t1) {
+      this.imports = t0;
+      this.span = t1;
+    },
+    JSImporter: function JSImporter() {
+    },
+    JSImporterResult: function JSImporterResult() {
+    },
+    Importer0: function Importer0() {
+    },
+    NodeImporterResult0: function NodeImporterResult0() {
+    },
+    IncludeRule0: function IncludeRule0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.namespace = t0;
+      _.name = t1;
+      _.originalName = t2;
+      _.$arguments = t3;
+      _.content = t4;
+      _.span = t5;
+    },
+    InterpolatedFunctionExpression0: function InterpolatedFunctionExpression0(t0, t1, t2) {
+      this.name = t0;
+      this.$arguments = t1;
+      this.span = t2;
+    },
+    Interpolation$0(contents, span) {
+      var t1 = new A.Interpolation0(A.List_List$unmodifiable(contents, type$.Object), span);
+      t1.Interpolation$20(contents, span);
+      return t1;
+    },
+    Interpolation0: function Interpolation0(t0, t1) {
+      this.contents = t0;
+      this.span = t1;
+    },
+    Interpolation_toString_closure0: function Interpolation_toString_closure0() {
+    },
+    SupportsInterpolation0: function SupportsInterpolation0(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    InterpolationBuffer0: function InterpolationBuffer0(t0, t1) {
+      this._interpolation_buffer0$_text = t0;
+      this._interpolation_buffer0$_contents = t1;
+    },
+    InterpolationMap$0(_interpolation, targetLocations) {
+      var t1 = A.List_List$unmodifiable(targetLocations, type$.SourceLocation),
+        t2 = _interpolation.contents.length,
+        expectedLocations = Math.max(0, t2 - 1);
+      if (t1.length !== expectedLocations)
+        A.throwExpression(A.ArgumentError$("InterpolationMap must have " + A.S(expectedLocations) + string$.x20targe + t2 + " components.", null));
+      return new A.InterpolationMap0(_interpolation, t1);
+    },
+    InterpolationMap0: function InterpolationMap0(t0, t1) {
+      this._interpolation_map$_interpolation = t0;
+      this._interpolation_map$_targetLocations = t1;
+    },
+    InterpolationMap_mapException_closure0: function InterpolationMap_mapException_closure0() {
+    },
+    _realCasePath0(path) {
+      var prefix, _null = null,
+        t1 = A.isNodeJs() ? self.process : _null;
+      if (!J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "win32")) {
+        t1 = A.isNodeJs() ? self.process : _null;
+        t1 = J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "darwin");
+      } else
+        t1 = true;
+      if (!t1)
+        return path;
+      t1 = A.isNodeJs() ? self.process : _null;
+      if (J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "win32")) {
+        prefix = B.JSString_methods.substring$2(path, 0, $.$get$context().style.rootLength$1(path));
+        t1 = prefix.length;
+        if (t1 !== 0 && A.CharacterExtension_get_isAlphabetic0(prefix.charCodeAt(0)))
+          path = prefix.toUpperCase() + B.JSString_methods.substring$1(path, t1);
+      }
+      return new A._realCasePath_helper0().call$1(path);
+    },
+    _realCasePath_helper0: function _realCasePath_helper0() {
+    },
+    _realCasePath_helper_closure0: function _realCasePath_helper_closure0(t0, t1, t2) {
+      this.helper = t0;
+      this.dirname = t1;
+      this.path = t2;
+    },
+    _realCasePath_helper__closure0: function _realCasePath_helper__closure0(t0) {
+      this.basename = t0;
+    },
+    printError0(message) {
+      var t1 = A.isNodeJs() ? self.process : null;
+      if (t1 != null) {
+        t1 = J.get$stderr$x(t1);
+        J.write$1$x(t1, A.S(message) + "\n");
+      } else {
+        t1 = self.console;
+        J.error$1$x(t1, message);
+      }
+    },
+    readFile0(path) {
+      var contents, sourceFile, t1, i;
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("readFile() is only supported on Node.js"));
+      contents = A._asString(A._readFile0(path, "utf8"));
+      if (!B.JSString_methods.contains$1(contents, "\ufffd"))
+        return contents;
+      sourceFile = A.SourceFile$fromString(contents, $.$get$context().toUri$1(path));
+      for (t1 = contents.length, i = 0; i < t1; ++i) {
+        if (contents.charCodeAt(i) !== 65533)
+          continue;
+        throw A.wrapException(A.SassException$0("Invalid UTF-8.", A.FileLocation$_(sourceFile, i).pointSpan$0(), null));
+      }
+      return contents;
+    },
+    _readFile0(path, encoding) {
+      return A._systemErrorToFileSystemException0(new A._readFile_closure0(path, encoding));
+    },
+    fileExists0(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$(string$.fileEx));
+      return A._systemErrorToFileSystemException0(new A.fileExists_closure0(path));
+    },
+    dirExists0(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("dirExists() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException0(new A.dirExists_closure0(path));
+    },
+    listDir0(path) {
+      if (!A.isNodeJs())
+        throw A.wrapException(A.UnsupportedError$("listDir() is only supported on Node.js"));
+      return A._systemErrorToFileSystemException0(new A.listDir_closure0(false, path));
+    },
+    getEnvironmentVariable0($name) {
+      var t1 = A.isNodeJs() ? self.process : null,
+        env = t1 == null ? null : J.get$env$x(t1);
+      if (env == null)
+        t1 = null;
+      else
+        t1 = A._asStringQ(env[$name]);
+      return t1;
+    },
+    _systemErrorToFileSystemException0(callback) {
+      var error, t1, exception, t2;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        if (!type$.JsSystemError._is(error))
+          throw exception;
+        t1 = error;
+        t2 = J.getInterceptor$x(t1);
+        throw A.wrapException(new A.FileSystemException0(J.substring$2$s(t2.get$message(t1), (A.S(t2.get$code(t1)) + ": ").length, J.get$length$asx(t2.get$message(t1)) - (", " + A.S(t2.get$syscall(t1)) + " '" + A.S(t2.get$path(t1)) + "'").length), J.get$path$x(error)));
+      }
+    },
+    hasTerminal0() {
+      var t1 = A.isNodeJs() ? self.process : null;
+      return J.$eq$(t1 == null ? null : J.get$isTTY$x(J.get$stdout$x(t1)), true);
+    },
+    FileSystemException0: function FileSystemException0(t0, t1) {
+      this.message = t0;
+      this.path = t1;
+    },
+    _readFile_closure0: function _readFile_closure0(t0, t1) {
+      this.path = t0;
+      this.encoding = t1;
+    },
+    fileExists_closure0: function fileExists_closure0(t0) {
+      this.path = t0;
+    },
+    dirExists_closure0: function dirExists_closure0(t0) {
+      this.path = t0;
+    },
+    listDir_closure0: function listDir_closure0(t0, t1) {
+      this.recursive = t0;
+      this.path = t1;
+    },
+    listDir__closure1: function listDir__closure1(t0) {
+      this.path = t0;
+    },
+    listDir__closure2: function listDir__closure2() {
+    },
+    listDir_closure_list0: function listDir_closure_list0() {
+    },
+    listDir__list_closure0: function listDir__list_closure0(t0, t1) {
+      this.parent = t0;
+      this.list = t1;
+    },
+    main() {
+      J.set$compile$x(self.exports, A.allowInteropNamed("sass.compile", A.compile__compile$closure()));
+      J.set$compileString$x(self.exports, A.allowInteropNamed("sass.compileString", A.compile__compileString$closure()));
+      J.set$compileAsync$x(self.exports, A.allowInteropNamed("sass.compileAsync", A.compile__compileAsync$closure()));
+      J.set$compileStringAsync$x(self.exports, A.allowInteropNamed("sass.compileStringAsync", A.compile__compileStringAsync$closure()));
+      J.set$initCompiler$x(self.exports, A.allowInteropNamed("sass.initCompiler", A.compiler__initCompiler$closure()));
+      J.set$initAsyncCompiler$x(self.exports, A.allowInteropNamed("sass.initAsyncCompiler", A.compiler__initAsyncCompiler$closure()));
+      J.set$Compiler$x(self.exports, $.$get$compilerClass());
+      J.set$AsyncCompiler$x(self.exports, $.$get$asyncCompilerClass());
+      J.set$Value$x(self.exports, $.$get$valueClass());
+      J.set$SassBoolean$x(self.exports, $.$get$booleanClass());
+      J.set$SassArgumentList$x(self.exports, $.$get$argumentListClass());
+      J.set$SassCalculation$x(self.exports, $.$get$calculationClass());
+      J.set$CalculationOperation$x(self.exports, $.$get$calculationOperationClass());
+      J.set$CalculationInterpolation$x(self.exports, $.$get$calculationInterpolationClass());
+      J.set$SassColor$x(self.exports, $.$get$colorClass());
+      J.set$SassFunction$x(self.exports, $.$get$functionClass());
+      J.set$SassMixin$x(self.exports, $.$get$mixinClass());
+      J.set$SassList$x(self.exports, $.$get$listClass());
+      J.set$SassMap$x(self.exports, $.$get$mapClass());
+      J.set$SassNumber$x(self.exports, $.$get$numberClass());
+      J.set$SassString$x(self.exports, $.$get$stringClass());
+      J.set$sassNull$x(self.exports, B.C__SassNull0);
+      J.set$sassTrue$x(self.exports, B.SassBoolean_true0);
+      J.set$sassFalse$x(self.exports, B.SassBoolean_false0);
+      J.set$Exception$x(self.exports, $.$get$exceptionClass());
+      J.set$Logger$x(self.exports, {silent: {warn: A.allowInteropNamed("sass.Logger.silent.warn", new A.main_closure()), debug: A.allowInteropNamed("sass.Logger.silent.debug", new A.main_closure0())}});
+      J.set$NodePackageImporter$x(self.exports, $.$get$nodePackageImporterClass());
+      J.set$deprecations$x(self.exports, A.jsify($.$get$deprecations()));
+      J.set$Version$x(self.exports, $.$get$versionClass());
+      J.set$info$x(self.exports, "dart-sass\t1.77.4\t(Sass Compiler)\t[Dart]\ndart2js\t3.4.2\t(Dart Compiler)\t[Dart]");
+      A.updateCanonicalizeContextPrototype();
+      A.updateSourceSpanPrototype();
+      J.set$render$x(self.exports, A.allowInteropNamed("sass.render", A.legacy__render$closure()));
+      J.set$renderSync$x(self.exports, A.allowInteropNamed("sass.renderSync", A.legacy__renderSync$closure()));
+      J.set$types$x(self.exports, {Boolean: $.$get$legacyBooleanClass(), Color: $.$get$legacyColorClass(), List: $.$get$legacyListClass(), Map: $.$get$legacyMapClass(), Null: $.$get$legacyNullClass(), Number: $.$get$legacyNumberClass(), String: $.$get$legacyStringClass(), Error: self.Error});
+      J.set$NULL$x(self.exports, B.C__SassNull0);
+      J.set$TRUE$x(self.exports, B.SassBoolean_true0);
+      J.set$FALSE$x(self.exports, B.SassBoolean_false0);
+    },
+    main_closure: function main_closure() {
+    },
+    main_closure0: function main_closure0() {
+    },
+    JSToDartLogger: function JSToDartLogger(t0, t1, t2) {
+      this._node = t0;
+      this._fallback = t1;
+      this._ascii = t2;
+    },
+    JSToDartLogger_internalWarn_closure: function JSToDartLogger_internalWarn_closure(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _.$this = t0;
+      _.message = t1;
+      _.span = t2;
+      _.trace = t3;
+      _.deprecation = t4;
+    },
+    JSToDartLogger_debug_closure: function JSToDartLogger_debug_closure(t0, t1, t2) {
+      this.$this = t0;
+      this.message = t1;
+      this.span = t2;
+    },
+    ModifiableCssKeyframeBlock$0(selector, span) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      return new A.ModifiableCssKeyframeBlock0(selector, span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode_2), t1);
+    },
+    ModifiableCssKeyframeBlock0: function ModifiableCssKeyframeBlock0(t0, t1, t2, t3) {
+      var _ = this;
+      _.selector = t0;
+      _.span = t1;
+      _.children = t2;
+      _._node$_children = t3;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    KeyframeSelectorParser$0(contents, interpolationMap, logger) {
+      var t1 = A.SpanScanner$(contents, null);
+      return new A.KeyframeSelectorParser0(t1, logger, interpolationMap);
+    },
+    KeyframeSelectorParser0: function KeyframeSelectorParser0(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._parser0$_interpolationMap = t2;
+    },
+    KeyframeSelectorParser_parse_closure0: function KeyframeSelectorParser_parse_closure0(t0) {
+      this.$this = t0;
+    },
+    LazyFileSpan0: function LazyFileSpan0(t0) {
+      this._lazy_file_span0$_builder = t0;
+      this._lazy_file_span0$_span = null;
+    },
+    render(options, callback) {
+      var _0_0;
+      if (!A.isNodeJs())
+        A.jsThrow(new self.Error("The render() method is only available in Node.js."));
+      _0_0 = J.get$fiber$x(options);
+      if (_0_0 != null)
+        J.run$0$x(_0_0.call$1(A.allowInterop(new A.render_closure(callback, options))));
+      else
+        A._renderAsync(options).then$1$2$onError(0, new A.render_closure0(callback), new A.render_closure1(callback), type$.Null);
+    },
+    _renderAsync(options) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.RenderResult),
+        $async$returnValue, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16, result, start, t1, file, _0_0;
+      var $async$_renderAsync = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              start = new A.DateTime(Date.now(), false);
+              t1 = J.getInterceptor$x(options);
+              file = A.NullableExtension_andThen0(t1.get$file(options), A.path__absolute$closure());
+              _0_0 = t1.get$data(options);
+              $async$goto = _0_0 != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              t2 = A._parseImporter(options, start);
+              t3 = A._parsePackageImportersAsync(options, start);
+              t4 = A._parseFunctions(options, start, true);
+              t5 = t1.get$indentedSyntax(options);
+              t5 = !J.$eq$(t5, false) && t5 != null ? B.Syntax_Sass_sass0 : null;
+              t6 = A._parseOutputStyle(t1.get$outputStyle(options));
+              t7 = J.$eq$(t1.get$indentType(options), "tab");
+              t8 = A._parseIndentWidth(t1.get$indentWidth(options));
+              t9 = A._parseLineFeed(t1.get$linefeed(options));
+              t10 = file == null ? "stdin" : $.$get$context().toUri$1(file).toString$0(0);
+              t11 = t1.get$quietDeps(options);
+              if (t11 == null)
+                t11 = false;
+              t12 = t1.get$verbose(options);
+              if (t12 == null)
+                t12 = false;
+              t13 = t1.get$charset(options);
+              if (t13 == null)
+                t13 = true;
+              t14 = A._enableSourceMaps(options);
+              t1 = t1.get$logger(options);
+              t15 = A.hasTerminal0();
+              t16 = $._glyphs;
+              $async$goto = 6;
+              return A._asyncAwait(A.compileStringAsync0(_0_0, t13, null, t4, null, t3, null, t8, t9, new A.JSToDartLogger(t1, new A.StderrLogger0(t15), t16 === B.C_AsciiGlyphSet), t2, t11, null, t14, t6, t5, t10, !t7, t12), $async$_renderAsync);
+            case 6:
+              // returning from await.
+              result = $async$result;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$goto = file != null ? 7 : 9;
+              break;
+            case 7:
+              // then
+              t2 = A._parseImporter(options, start);
+              t3 = A._parsePackageImportersAsync(options, start);
+              t4 = A._parseFunctions(options, start, true);
+              t5 = t1.get$indentedSyntax(options);
+              t5 = !J.$eq$(t5, false) && t5 != null ? B.Syntax_Sass_sass0 : null;
+              t6 = A._parseOutputStyle(t1.get$outputStyle(options));
+              t7 = J.$eq$(t1.get$indentType(options), "tab");
+              t8 = A._parseIndentWidth(t1.get$indentWidth(options));
+              t9 = A._parseLineFeed(t1.get$linefeed(options));
+              t10 = t1.get$quietDeps(options);
+              if (t10 == null)
+                t10 = false;
+              t11 = t1.get$verbose(options);
+              if (t11 == null)
+                t11 = false;
+              t12 = t1.get$charset(options);
+              if (t12 == null)
+                t12 = true;
+              t13 = A._enableSourceMaps(options);
+              t1 = t1.get$logger(options);
+              t14 = A.hasTerminal0();
+              t15 = $._glyphs;
+              $async$goto = 10;
+              return A._asyncAwait(A.compileAsync0(file, t12, null, t4, null, t3, t8, t9, new A.JSToDartLogger(t1, new A.StderrLogger0(t14), t15 === B.C_AsciiGlyphSet), t2, t10, null, t13, t6, t5, !t7, t11), $async$_renderAsync);
+            case 10:
+              // returning from await.
+              result = $async$result;
+              // goto join
+              $async$goto = 8;
+              break;
+            case 9:
+              // else
+              throw A.wrapException(A.ArgumentError$(string$.Either, null));
+            case 8:
+              // join
+            case 4:
+              // join
+              $async$returnValue = A._newRenderResult(options, result, start);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_renderAsync, $async$completer);
+    },
+    renderSync(options) {
+      var start, result, file, _0_0, data, error, stackTrace, error0, stackTrace0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16, t17, exception, _null = null;
+      if (!A.isNodeJs())
+        A.jsThrow(new self.Error("The renderSync() method is only available in Node.js."));
+      try {
+        start = new A.DateTime(Date.now(), false);
+        result = null;
+        t1 = J.getInterceptor$x(options);
+        file = A.NullableExtension_andThen0(t1.get$file(options), A.path__absolute$closure());
+        _0_0 = t1.get$data(options);
+        data = null;
+        if (_0_0 != null) {
+          data = _0_0;
+          t2 = data;
+          t3 = A._parseImporter(options, start);
+          t4 = A._parsePackageImporters(options, start);
+          t5 = A._parseFunctions(options, start, false);
+          t6 = t1.get$indentedSyntax(options);
+          t6 = !J.$eq$(t6, false) && t6 != null ? B.Syntax_Sass_sass0 : _null;
+          t7 = A._parseOutputStyle(t1.get$outputStyle(options));
+          t8 = J.$eq$(t1.get$indentType(options), "tab");
+          t9 = A._parseIndentWidth(t1.get$indentWidth(options));
+          t10 = A._parseLineFeed(t1.get$linefeed(options));
+          t11 = file == null ? "stdin" : $.$get$context().toUri$1(file).toString$0(0);
+          t12 = t1.get$quietDeps(options);
+          if (t12 == null)
+            t12 = false;
+          t13 = t1.get$verbose(options);
+          if (t13 == null)
+            t13 = false;
+          t14 = t1.get$charset(options);
+          if (t14 == null)
+            t14 = true;
+          t15 = A._enableSourceMaps(options);
+          t1 = t1.get$logger(options);
+          t16 = A.hasTerminal0();
+          t17 = $._glyphs;
+          result = A.compileString(t2, t14, _null, new A.CastList(t5, A._arrayInstanceType(t5)._eval$1("CastList<1,Callable>")), _null, t4, _null, t9, t10, new A.JSToDartLogger(t1, new A.StderrLogger0(t16), t17 === B.C_AsciiGlyphSet), t3, t12, _null, t15, t7, t6, t11, !t8, t13);
+        } else if (file != null) {
+          t2 = A._parseImporter(options, start);
+          t3 = A._parsePackageImporters(options, start);
+          t4 = A._parseFunctions(options, start, false);
+          t5 = t1.get$indentedSyntax(options);
+          t5 = !J.$eq$(t5, false) && t5 != null ? B.Syntax_Sass_sass0 : _null;
+          t6 = A._parseOutputStyle(t1.get$outputStyle(options));
+          t7 = J.$eq$(t1.get$indentType(options), "tab");
+          t8 = A._parseIndentWidth(t1.get$indentWidth(options));
+          t9 = A._parseLineFeed(t1.get$linefeed(options));
+          t10 = t1.get$quietDeps(options);
+          if (t10 == null)
+            t10 = false;
+          t11 = t1.get$verbose(options);
+          if (t11 == null)
+            t11 = false;
+          t12 = t1.get$charset(options);
+          if (t12 == null)
+            t12 = true;
+          t13 = A._enableSourceMaps(options);
+          t1 = t1.get$logger(options);
+          t14 = A.hasTerminal0();
+          t15 = $._glyphs;
+          result = A.compile(file, t12, _null, new A.CastList(t4, A._arrayInstanceType(t4)._eval$1("CastList<1,Callable>")), _null, t3, t8, t9, new A.JSToDartLogger(t1, new A.StderrLogger0(t14), t15 === B.C_AsciiGlyphSet), t2, t10, _null, t13, t6, t5, !t7, t11);
+        } else {
+          t1 = A.ArgumentError$(string$.Either, _null);
+          throw A.wrapException(t1);
+        }
+        t1 = A._newRenderResult(options, result, start);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.jsThrow(A._wrapException(error, stackTrace));
+        } else {
+          error0 = t1;
+          stackTrace0 = A.getTraceFromException(exception);
+          t1 = J.toString$0$(error0);
+          t2 = A.getTrace0(error0);
+          A.jsThrow(A._newRenderError(t1, t2 == null ? stackTrace0 : t2, _null, _null, _null, 3));
+        }
+      }
+    },
+    _wrapException(exception, stackTrace) {
+      var t2, t3, t4, t5,
+        t1 = A.SourceSpanException.prototype.get$span.call(exception, 0),
+        _0_0 = t1.get$sourceUrl(t1);
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = "stdin";
+          break $label0$0;
+        }
+        if ("file" === _0_0.get$scheme()) {
+          t1 = $.$get$context().style.pathFromUri$1(A._parseUri(_0_0));
+          break $label0$0;
+        }
+        t1 = _0_0.toString$0(0);
+        break $label0$0;
+      }
+      t2 = B.JSString_methods.replaceFirst$2(exception.toString$0(0), "Error: ", "");
+      t3 = A.getTrace0(exception);
+      if (t3 == null)
+        t3 = stackTrace;
+      t4 = A.SourceSpanException.prototype.get$span.call(exception, 0);
+      t4 = t4.get$start(t4);
+      t4 = t4.file.getLine$1(t4.offset);
+      t5 = A.SourceSpanException.prototype.get$span.call(exception, 0);
+      t5 = t5.get$start(t5);
+      return A._newRenderError(t2, t3, t5.file.getColumn$1(t5.offset) + 1, t1, t4 + 1, 1);
+    },
+    _parseFunctions(options, start, asynch) {
+      var result,
+        functions = J.get$functions$x(options);
+      if (functions == null)
+        return B.List_empty24;
+      result = A._setArrayType([], type$.JSArray_AsyncCallable_2);
+      A.jsForEach(functions, new A._parseFunctions_closure(options, start, result, asynch));
+      return result;
+    },
+    _parseImporter(options, start) {
+      var t2, t3, contextOptions, _1_0, importers, _box_0 = {},
+        t1 = J.getInterceptor$x(options),
+        _0_0 = t1.get$importer(options);
+      $label0$0: {
+        if (_0_0 == null) {
+          t2 = A._setArrayType([], type$.JSArray_JSFunction);
+          break $label0$0;
+        }
+        if (type$.List_nullable_Object._is(_0_0)) {
+          t2 = J.cast$1$0$ax(_0_0, type$.JSFunction);
+          break $label0$0;
+        }
+        t2 = A._setArrayType([type$.JSFunction._as(_0_0)], type$.JSArray_JSFunction);
+        break $label0$0;
+      }
+      t3 = J.getInterceptor$asx(t2);
+      contextOptions = t3.get$isNotEmpty(t2) ? A._contextOptions(options, start) : new A.Object();
+      _1_0 = t1.get$fiber(options);
+      _box_0.fiber = null;
+      if (_1_0 != null) {
+        _box_0.fiber = _1_0;
+        t2 = t3.map$1$1(t2, new A._parseImporter_closure(_box_0), type$.JSFunction);
+        importers = A.List_List$of(t2, true, t2.$ti._eval$1("ListIterable.E"));
+      } else
+        importers = t2;
+      t1 = t1.get$includePaths(options);
+      if (t1 == null)
+        t1 = [];
+      t2 = type$.String;
+      return new A.NodeImporter(contextOptions, A.List_List$unmodifiable(A.NodeImporter__addSassPath(A.List_List$from(t1, true, t2)), t2), A.List_List$unmodifiable(J.cast$1$0$ax(importers, type$.dynamic), type$.JSFunction));
+    },
+    _parsePackageImportersAsync(options, start) {
+      var t2, t3, t4,
+        t1 = J.getInterceptor$x(options);
+      if (t1.get$pkgImporter(options) instanceof A.NodePackageImporter0) {
+        t1 = t1.get$pkgImporter(options);
+        t1.toString;
+        t2 = type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2;
+        t3 = type$.Record_3_AsyncImporter_and_Uri_and_bool_forImport_2;
+        t4 = type$.Uri;
+        t1 = A.List_List$unmodifiable(A._setArrayType([t1], type$.JSArray_AsyncImporter), type$.AsyncImporter);
+        return new A.AsyncImportCache0(t1, B.StderrLogger_false0, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t2), A.LinkedHashMap_LinkedHashMap$_empty(t3, t2), A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), A.LinkedHashMap_LinkedHashMap$_empty(t4, type$.nullable_Stylesheet_2), A.LinkedHashMap_LinkedHashMap$_empty(t4, type$.ImporterResult_2));
+      }
+      return null;
+    },
+    _parsePackageImporters(options, start) {
+      var t2, t3, t4,
+        t1 = J.getInterceptor$x(options);
+      if (t1.get$pkgImporter(options) instanceof A.NodePackageImporter0) {
+        t1 = t1.get$pkgImporter(options);
+        t1.toString;
+        t2 = type$.nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl_2;
+        t3 = type$.Record_3_Importer_and_Uri_and_bool_forImport_2;
+        t4 = type$.Uri;
+        t1 = A.List_List$unmodifiable(A._setArrayType([t1], type$.JSArray_Importer_2), type$.Importer);
+        return new A.ImportCache0(t1, B.StderrLogger_false0, A.LinkedHashMap_LinkedHashMap$_empty(type$.Record_2_Uri_and_bool_forImport, t2), A.LinkedHashMap_LinkedHashMap$_empty(t3, t2), A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), A.LinkedHashMap_LinkedHashMap$_empty(t4, type$.nullable_Stylesheet_2), A.LinkedHashMap_LinkedHashMap$_empty(t4, type$.ImporterResult_2));
+      }
+      return null;
+    },
+    _contextOptions(options, start) {
+      var includePaths, t3, t4, t5, t6, t7,
+        t1 = J.getInterceptor$x(options),
+        t2 = t1.get$includePaths(options);
+      if (t2 == null)
+        t2 = [];
+      includePaths = A.List_List$from(t2, true, type$.String);
+      t2 = t1.get$file(options);
+      t3 = t1.get$data(options);
+      t4 = A._setArrayType([A.current()], type$.JSArray_String);
+      B.JSArray_methods.addAll$1(t4, includePaths);
+      t5 = A.isNodeJs() ? self.process : null;
+      t4 = B.JSArray_methods.join$1(t4, J.$eq$(t5 == null ? null : J.get$platform$x(t5), "win32") ? ";" : ":");
+      t5 = J.$eq$(t1.get$indentType(options), "tab") ? 1 : 0;
+      t6 = A._parseIndentWidth(t1.get$indentWidth(options));
+      if (t6 == null)
+        t6 = 2;
+      t7 = A._parseLineFeed(t1.get$linefeed(options));
+      t1 = t1.get$file(options);
+      if (t1 == null)
+        t1 = "data";
+      return {file: t2, data: t3, includePaths: t4, precision: 10, style: 1, indentType: t5, indentWidth: t6, linefeed: t7.text, result: {stats: {start: start._value, entry: t1}}};
+    },
+    _parseOutputStyle(style) {
+      var t1;
+      $label0$0: {
+        if (style == null || "expanded" === style) {
+          t1 = B.OutputStyle_00;
+          break $label0$0;
+        }
+        if ("compressed" === style) {
+          t1 = B.OutputStyle_10;
+          break $label0$0;
+        }
+        t1 = A.jsThrow(new self.Error('Unknown output style "' + A.S(style) + '".'));
+      }
+      return t1;
+    },
+    _parseIndentWidth(width) {
+      var t1;
+      $label0$0: {
+        if (width == null) {
+          t1 = null;
+          break $label0$0;
+        }
+        if (A._isInt(width)) {
+          t1 = width;
+          break $label0$0;
+        }
+        t1 = A.int_parse(J.toString$0$(width), null);
+        break $label0$0;
+      }
+      return t1;
+    },
+    _parseLineFeed(str) {
+      var t1;
+      $label0$0: {
+        if ("cr" === str) {
+          t1 = B.LineFeed_89t;
+          break $label0$0;
+        }
+        if ("crlf" === str) {
+          t1 = B.LineFeed_A4L;
+          break $label0$0;
+        }
+        if ("lfcr" === str) {
+          t1 = B.LineFeed_75j;
+          break $label0$0;
+        }
+        t1 = B.LineFeed_LvD;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _newRenderResult(options, result, start) {
+      var t3, sourceMapOption, sourceMapPath, t4, sourceMapDir, outFile, _0_0, t5, sourceMapDirUrl, i, source, t6, buffer, indices, url, t7, t8, _null = null,
+        t1 = Date.now(),
+        t2 = result._compile_result$_serialize,
+        css = t2._0,
+        sourceMapBytes = type$.Null._as(self.undefined);
+      if (A._enableSourceMaps(options)) {
+        t3 = J.getInterceptor$x(options);
+        sourceMapOption = t3.get$sourceMap(options);
+        if (typeof sourceMapOption == "string")
+          sourceMapPath = sourceMapOption;
+        else {
+          t4 = t3.get$outFile(options);
+          t4.toString;
+          sourceMapPath = J.$add$ansx(t4, ".map");
+        }
+        t4 = $.$get$context();
+        sourceMapDir = t4.dirname$1(sourceMapPath);
+        t2 = t2._1;
+        t2.toString;
+        t2.sourceRoot = t3.get$sourceMapRoot(options);
+        outFile = t3.get$outFile(options);
+        if (outFile == null) {
+          _0_0 = t3.get$file(options);
+          $label0$0: {
+            if (_0_0 != null) {
+              t5 = t4.toUri$1(t4.withoutExtension$1(_0_0) + ".css").toString$0(0);
+              break $label0$0;
+            }
+            t5 = t2.targetUrl = "stdin.css";
+            break $label0$0;
+          }
+          t2.targetUrl = t5;
+        } else
+          t2.targetUrl = t4.toUri$1(t4.relative$2$from(outFile, sourceMapDir)).toString$0(0);
+        sourceMapDirUrl = t4.toUri$1(sourceMapDir).toString$0(0);
+        for (t4 = t2.urls, i = 0; i < t4.length; ++i) {
+          source = t4[i];
+          if (source === "stdin")
+            continue;
+          t5 = $.$get$url();
+          t6 = t5.style;
+          if (t6.rootLength$1(source) <= 0 || t6.isRootRelative$1(source))
+            continue;
+          t4[i] = t5.relative$2$from(source, sourceMapDirUrl);
+        }
+        t4 = t3.get$sourceMapContents(options);
+        sourceMapBytes = self.Buffer.from(B.C_JsonCodec.encode$2$toEncodable(t2.toJson$1$includeSourceContents(!J.$eq$(t4, false) && t4 != null), _null), "utf8");
+        t2 = t3.get$omitSourceMapUrl(options);
+        if (!(!J.$eq$(t2, false) && t2 != null)) {
+          t2 = t3.get$sourceMapEmbed(options);
+          if (!J.$eq$(t2, false) && t2 != null) {
+            buffer = new A.StringBuffer("");
+            indices = A._setArrayType([-1], type$.JSArray_int);
+            A.UriData__writeUri("application/json", _null, _null, buffer, indices);
+            indices.push(buffer._contents.length);
+            t2 = buffer._contents += ";base64,";
+            indices.push(t2.length - 1);
+            t2 = B.C_Base64Encoder.startChunkedConversion$1(new A._StringSinkConversionSink(buffer));
+            t3 = sourceMapBytes.length;
+            A.RangeError_checkValidRange(0, t3, t3);
+            t2._convert$_add$4(sourceMapBytes, 0, t3, true);
+            t2 = buffer._contents;
+            url = new A.UriData(t2.charCodeAt(0) == 0 ? t2 : t2, indices, _null).get$uri();
+          } else {
+            if (outFile == null)
+              t2 = sourceMapPath;
+            else {
+              t2 = $.$get$context();
+              t2 = t2.relative$2$from(sourceMapPath, t2.dirname$1(outFile));
+            }
+            url = $.$get$context().toUri$1(t2);
+          }
+          t2 = url.toString$0(0);
+          css += "\n\n/*# sourceMappingURL=" + A.stringReplaceAllUnchecked(t2, "*/", "%2A/") + " */";
+        }
+      }
+      t2 = self.Buffer.from(css, "utf8");
+      t3 = J.get$file$x(options);
+      if (t3 == null)
+        t3 = "data";
+      t4 = start._value;
+      t1 = new A.DateTime(t1, false)._value;
+      t5 = B.JSInt_methods._tdivFast$1(A.Duration$(t1 - t4)._duration, 1000);
+      t6 = A._setArrayType([], type$.JSArray_String);
+      for (t7 = result._evaluate._0, t7 = t7.get$iterator(t7); t7.moveNext$0();) {
+        t8 = t7.get$current(t7);
+        t6.push(t8.get$scheme() === "file" ? $.$get$context().style.pathFromUri$1(A._parseUri(t8)) : t8.toString$0(0));
+      }
+      return {css: t2, map: sourceMapBytes, stats: {entry: t3, start: t4, end: t1, duration: t5, includedFiles: t6}};
+    },
+    _enableSourceMaps(options) {
+      var t2,
+        t1 = J.getInterceptor$x(options);
+      if (typeof t1.get$sourceMap(options) != "string") {
+        t2 = t1.get$sourceMap(options);
+        t1 = !J.$eq$(t2, false) && t2 != null && t1.get$outFile(options) != null;
+      } else
+        t1 = true;
+      return t1;
+    },
+    _newRenderError(message, stackTrace, column, file, line, $status) {
+      var error = new self.Error(message);
+      error.formatted = "Error: " + message;
+      if (line != null)
+        error.line = line;
+      if (column != null)
+        error.column = column;
+      if (file != null)
+        error.file = file;
+      error.status = $status;
+      A.attachJsStack(error, stackTrace);
+      return error;
+    },
+    render_closure: function render_closure(t0, t1) {
+      this.callback = t0;
+      this.options = t1;
+    },
+    render_closure0: function render_closure0(t0) {
+      this.callback = t0;
+    },
+    render_closure1: function render_closure1(t0) {
+      this.callback = t0;
+    },
+    _parseFunctions_closure: function _parseFunctions_closure(t0, t1, t2, t3) {
+      var _ = this;
+      _.options = t0;
+      _.start = t1;
+      _.result = t2;
+      _.asynch = t3;
+    },
+    _parseFunctions__closure: function _parseFunctions__closure(t0, t1, t2) {
+      this._box_0 = t0;
+      this.callback = t1;
+      this.context = t2;
+    },
+    _parseFunctions___closure2: function _parseFunctions___closure2(t0) {
+      this.currentFiber = t0;
+    },
+    _parseFunctions____closure: function _parseFunctions____closure(t0, t1) {
+      this.currentFiber = t0;
+      this.result = t1;
+    },
+    _parseFunctions___closure3: function _parseFunctions___closure3(t0, t1, t2) {
+      this.callback = t0;
+      this.context = t1;
+      this.jsArguments = t2;
+    },
+    _parseFunctions___closure4: function _parseFunctions___closure4(t0) {
+      this._box_0 = t0;
+    },
+    _parseFunctions__closure0: function _parseFunctions__closure0(t0, t1) {
+      this.callback = t0;
+      this.context = t1;
+    },
+    _parseFunctions___closure1: function _parseFunctions___closure1(t0, t1, t2) {
+      this.callback = t0;
+      this.context = t1;
+      this.$arguments = t2;
+    },
+    _parseFunctions__closure1: function _parseFunctions__closure1(t0, t1) {
+      this.callback = t0;
+      this.context = t1;
+    },
+    _parseFunctions___closure: function _parseFunctions___closure(t0) {
+      this.completer = t0;
+    },
+    _parseFunctions___closure0: function _parseFunctions___closure0(t0, t1, t2) {
+      this.callback = t0;
+      this.context = t1;
+      this.jsArguments = t2;
+    },
+    _parseImporter_closure: function _parseImporter_closure(t0) {
+      this._box_0 = t0;
+    },
+    _parseImporter__closure: function _parseImporter__closure(t0, t1) {
+      this._box_0 = t0;
+      this.importer = t1;
+    },
+    _parseImporter___closure: function _parseImporter___closure(t0) {
+      this.currentFiber = t0;
+    },
+    _parseImporter____closure: function _parseImporter____closure(t0, t1) {
+      this.currentFiber = t0;
+      this.result = t1;
+    },
+    _parseImporter___closure0: function _parseImporter___closure0(t0) {
+      this._box_0 = t0;
+    },
+    LimitedMapView$blocklist0(_map, blocklist, $K, $V) {
+      var t2, key,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty($K);
+      for (t2 = J.get$iterator$ax(_map.get$keys(_map)); t2.moveNext$0();) {
+        key = t2.get$current(t2);
+        if (!blocklist.contains$1(0, key))
+          t1.add$1(0, key);
+      }
+      return new A.LimitedMapView0(_map, t1, $K._eval$1("@<0>")._bind$1($V)._eval$1("LimitedMapView0<1,2>"));
+    },
+    LimitedMapView0: function LimitedMapView0(t0, t1, t2) {
+      this._limited_map_view0$_map = t0;
+      this._limited_map_view0$_keys = t1;
+      this.$ti = t2;
+    },
+    ListExpression0: function ListExpression0(t0, t1, t2, t3) {
+      var _ = this;
+      _.contents = t0;
+      _.separator = t1;
+      _.hasBrackets = t2;
+      _.span = t3;
+    },
+    ListExpression_toString_closure0: function ListExpression_toString_closure0(t0) {
+      this.$this = t0;
+    },
+    _function10($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:list");
+    },
+    _length_closure2: function _length_closure2() {
+    },
+    _nth_closure0: function _nth_closure0() {
+    },
+    _setNth_closure0: function _setNth_closure0() {
+    },
+    _join_closure0: function _join_closure0() {
+    },
+    _append_closure2: function _append_closure2() {
+    },
+    _zip_closure0: function _zip_closure0() {
+    },
+    _zip__closure2: function _zip__closure2() {
+    },
+    _zip__closure3: function _zip__closure3(t0) {
+      this._box_0 = t0;
+    },
+    _zip__closure4: function _zip__closure4(t0) {
+      this._box_0 = t0;
+    },
+    _index_closure2: function _index_closure2() {
+    },
+    _separator_closure0: function _separator_closure0() {
+    },
+    _isBracketed_closure0: function _isBracketed_closure0() {
+    },
+    _slash_closure0: function _slash_closure0() {
+    },
+    SelectorList$0(components, span) {
+      var t1 = A.List_List$unmodifiable(components, type$.ComplexSelector_2);
+      if (t1.length === 0)
+        A.throwExpression(A.ArgumentError$("components may not be empty.", null));
+      return new A.SelectorList0(t1, span);
+    },
+    SelectorList_SelectorList$parse0(contents, allowParent, interpolationMap, logger, plainCss) {
+      return A.SelectorParser$0(contents, allowParent, interpolationMap, logger, plainCss, null).parse$0();
+    },
+    SelectorList0: function SelectorList0(t0, t1) {
+      this.components = t0;
+      this.span = t1;
+    },
+    SelectorList_asSassList_closure0: function SelectorList_asSassList_closure0() {
+    },
+    SelectorList_nestWithin_closure0: function SelectorList_nestWithin_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.preserveParentSelectors = t1;
+      _.implicitParent = t2;
+      _.parent = t3;
+    },
+    SelectorList_nestWithin__closure1: function SelectorList_nestWithin__closure1(t0) {
+      this.complex = t0;
+    },
+    SelectorList_nestWithin__closure2: function SelectorList_nestWithin__closure2(t0) {
+      this.complex = t0;
+    },
+    SelectorList__nestWithinCompound_closure2: function SelectorList__nestWithinCompound_closure2() {
+    },
+    SelectorList__nestWithinCompound_closure3: function SelectorList__nestWithinCompound_closure3(t0) {
+      this.parent = t0;
+    },
+    SelectorList__nestWithinCompound_closure4: function SelectorList__nestWithinCompound_closure4(t0, t1, t2) {
+      this.parentSelector = t0;
+      this.resolvedSimples = t1;
+      this.component = t2;
+    },
+    SelectorList_withAdditionalCombinators_closure0: function SelectorList_withAdditionalCombinators_closure0(t0) {
+      this.combinators = t0;
+    },
+    _ParentSelectorVisitor0: function _ParentSelectorVisitor0() {
+    },
+    __ParentSelectorVisitor_Object_SelectorSearchVisitor0: function __ParentSelectorVisitor_Object_SelectorSearchVisitor0() {
+    },
+    listClass_closure: function listClass_closure() {
+    },
+    listClass__closure: function listClass__closure() {
+    },
+    listClass__closure0: function listClass__closure0() {
+    },
+    _ConstructorOptions: function _ConstructorOptions() {
+    },
+    _NodeSassList: function _NodeSassList() {
+    },
+    legacyListClass_closure: function legacyListClass_closure() {
+    },
+    legacyListClass__closure: function legacyListClass__closure() {
+    },
+    legacyListClass_closure0: function legacyListClass_closure0() {
+    },
+    legacyListClass_closure1: function legacyListClass_closure1() {
+    },
+    legacyListClass_closure2: function legacyListClass_closure2() {
+    },
+    legacyListClass_closure3: function legacyListClass_closure3() {
+    },
+    legacyListClass_closure4: function legacyListClass_closure4() {
+    },
+    SassList$0(contents, _separator, brackets) {
+      var t1 = new A.SassList0(A.List_List$unmodifiable(contents, type$.Value_2), _separator, brackets);
+      t1.SassList$3$brackets0(contents, _separator, brackets);
+      return t1;
+    },
+    SassList0: function SassList0(t0, t1, t2) {
+      this._list1$_contents = t0;
+      this._list1$_separator = t1;
+      this._list1$_hasBrackets = t2;
+    },
+    SassList_isBlank_closure0: function SassList_isBlank_closure0() {
+    },
+    ListSeparator0: function ListSeparator0(t0, t1, t2) {
+      this._list1$_name = t0;
+      this.separator = t1;
+      this._name = t2;
+    },
+    JSLogger: function JSLogger() {
+    },
+    WarnOptions: function WarnOptions() {
+    },
+    DebugOptions: function DebugOptions() {
+    },
+    WarnForDeprecation_warnForDeprecation0(_this, deprecation, message, span, trace) {
+      if (deprecation.isFuture && !(_this instanceof A.DeprecationProcessingLogger0))
+        return;
+      if (_this instanceof A.LoggerWithDeprecationType)
+        _this.internalWarn$4$deprecation$span$trace(message, deprecation, span, trace);
+      else
+        _this.warn$4$deprecation$span$trace(0, message, true, span, trace);
+    },
+    LoggerWithDeprecationType: function LoggerWithDeprecationType() {
+    },
+    _QuietLogger0: function _QuietLogger0() {
+    },
+    LoudComment0: function LoudComment0(t0) {
+      this.text = t0;
+    },
+    MapExpression0: function MapExpression0(t0, t1) {
+      this.pairs = t0;
+      this.span = t1;
+    },
+    _modify0(map, keys, modify, addNesting) {
+      var keyIterator = J.get$iterator$ax(keys);
+      return keyIterator.moveNext$0() ? new A._modify_modifyNestedMap0(keyIterator, modify, addNesting).call$1(map) : modify.call$1(map);
+    },
+    _deepMergeImpl0(map1, map2) {
+      var t2, t3, result, t4, key, value, _1_1, _1_3, _1_3_isSet, resultMap, _1_30, valueMap, merged, _null = null,
+        t1 = map1._map0$_contents;
+      if (t1.get$isEmpty(t1))
+        return map2;
+      t2 = map2._map0$_contents;
+      if (t2.get$isEmpty(t2))
+        return map1;
+      t3 = type$.Value_2;
+      result = A.LinkedHashMap_LinkedHashMap$of(t1, t3, t3);
+      for (t1 = A.MapExtensions_get_pairs0(t2, t3, t3), t1 = t1.get$iterator(t1), t2 = type$.SassMap_2; t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        key = t4._0;
+        value = t4._1;
+        t4 = result.$index(0, key);
+        _1_1 = t4 == null ? _null : t4.tryMap$0();
+        _1_3 = value.tryMap$0();
+        _1_3_isSet = _1_1 != null;
+        if (_1_3_isSet) {
+          resultMap = _1_1 == null ? t2._as(_1_1) : _1_1;
+          t4 = _1_3 != null;
+          _1_30 = _1_3;
+        } else {
+          resultMap = _null;
+          _1_30 = resultMap;
+          t4 = false;
+        }
+        if (t4) {
+          valueMap = _1_3_isSet ? _1_30 : _1_3;
+          merged = A._deepMergeImpl0(resultMap, valueMap == null ? t2._as(valueMap) : valueMap);
+          if (merged === resultMap)
+            continue;
+          result.$indexSet(0, key, merged);
+        } else
+          result.$indexSet(0, key, value);
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(result, t3, t3));
+    },
+    _function9($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:map");
+    },
+    _get_closure0: function _get_closure0() {
+    },
+    _set_closure1: function _set_closure1() {
+    },
+    _set__closure2: function _set__closure2(t0) {
+      this.$arguments = t0;
+    },
+    _set_closure2: function _set_closure2() {
+    },
+    _set__closure1: function _set__closure1(t0) {
+      this._box_0 = t0;
+    },
+    _merge_closure1: function _merge_closure1() {
+    },
+    _merge_closure2: function _merge_closure2() {
+    },
+    _merge__closure0: function _merge__closure0(t0) {
+      this.map2 = t0;
+    },
+    _deepMerge_closure0: function _deepMerge_closure0() {
+    },
+    _deepRemove_closure0: function _deepRemove_closure0() {
+    },
+    _deepRemove__closure0: function _deepRemove__closure0(t0) {
+      this.keys = t0;
+    },
+    _remove_closure1: function _remove_closure1() {
+    },
+    _remove_closure2: function _remove_closure2() {
+    },
+    _keys_closure0: function _keys_closure0() {
+    },
+    _values_closure0: function _values_closure0() {
+    },
+    _hasKey_closure0: function _hasKey_closure0() {
+    },
+    _modify_modifyNestedMap0: function _modify_modifyNestedMap0(t0, t1, t2) {
+      this.keyIterator = t0;
+      this.modify = t1;
+      this.addNesting = t2;
+    },
+    MapExtensions_get_pairs0(_this, $K, $V) {
+      return _this.get$entries(_this).map$1$1(0, new A.MapExtensions_get_pairs_closure0($K, $V), $K._eval$1("@<0>")._bind$1($V)._eval$1("+(1,2)"));
+    },
+    MapExtensions_get_pairs_closure0: function MapExtensions_get_pairs_closure0(t0, t1) {
+      this.K = t0;
+      this.V = t1;
+    },
+    mapClass_closure: function mapClass_closure() {
+    },
+    mapClass__closure: function mapClass__closure() {
+    },
+    mapClass__closure0: function mapClass__closure0() {
+    },
+    mapClass__closure1: function mapClass__closure1() {
+    },
+    _NodeSassMap: function _NodeSassMap() {
+    },
+    legacyMapClass_closure: function legacyMapClass_closure() {
+    },
+    legacyMapClass__closure: function legacyMapClass__closure() {
+    },
+    legacyMapClass__closure0: function legacyMapClass__closure0() {
+    },
+    legacyMapClass_closure0: function legacyMapClass_closure0() {
+    },
+    legacyMapClass_closure1: function legacyMapClass_closure1() {
+    },
+    legacyMapClass_closure2: function legacyMapClass_closure2() {
+    },
+    legacyMapClass_closure3: function legacyMapClass_closure3() {
+    },
+    legacyMapClass_closure4: function legacyMapClass_closure4() {
+    },
+    SassMap0: function SassMap0(t0) {
+      this._map0$_contents = t0;
+    },
+    _singleArgumentMathFunc0($name, mathFunc) {
+      return A.BuiltInCallable$function0($name, "$number", new A._singleArgumentMathFunc_closure0(mathFunc), "sass:math");
+    },
+    _numberFunction0($name, transform) {
+      return A.BuiltInCallable$function0($name, "$number", new A._numberFunction_closure0(transform), "sass:math");
+    },
+    _function8($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:math");
+    },
+    global_closure31: function global_closure31() {
+    },
+    module_closure11: function module_closure11() {
+    },
+    _ceil_closure0: function _ceil_closure0() {
+    },
+    _clamp_closure0: function _clamp_closure0() {
+    },
+    _floor_closure0: function _floor_closure0() {
+    },
+    _max_closure0: function _max_closure0() {
+    },
+    _min_closure0: function _min_closure0() {
+    },
+    _round_closure0: function _round_closure0() {
+    },
+    _hypot_closure0: function _hypot_closure0() {
+    },
+    _hypot__closure0: function _hypot__closure0() {
+    },
+    _log_closure0: function _log_closure0() {
+    },
+    _pow_closure0: function _pow_closure0() {
+    },
+    _atan2_closure0: function _atan2_closure0() {
+    },
+    _compatible_closure0: function _compatible_closure0() {
+    },
+    _isUnitless_closure0: function _isUnitless_closure0() {
+    },
+    _unit_closure0: function _unit_closure0() {
+    },
+    _percentage_closure0: function _percentage_closure0() {
+    },
+    _randomFunction_closure0: function _randomFunction_closure0() {
+    },
+    _div_closure0: function _div_closure0() {
+    },
+    _singleArgumentMathFunc_closure0: function _singleArgumentMathFunc_closure0(t0) {
+      this.mathFunc = t0;
+    },
+    _numberFunction_closure0: function _numberFunction_closure0(t0) {
+      this.transform = t0;
+    },
+    CssMediaQuery_parseList0(contents, interpolationMap, logger) {
+      var t1 = A.SpanScanner$(contents, null);
+      return new A.MediaQueryParser0(t1, logger, interpolationMap).parse$0();
+    },
+    CssMediaQuery$type0(type, conditions, modifier) {
+      return new A.CssMediaQuery0(modifier, type, true, conditions == null ? B.List_empty : A.List_List$unmodifiable(conditions, type$.String));
+    },
+    CssMediaQuery$condition0(conditions, conjunction) {
+      var t1 = A.List_List$unmodifiable(conditions, type$.String);
+      if (t1.length > 1 && conjunction == null)
+        A.throwExpression(A.ArgumentError$(string$.If_con, null));
+      return new A.CssMediaQuery0(null, null, conjunction !== false, t1);
+    },
+    CssMediaQuery0: function CssMediaQuery0(t0, t1, t2, t3) {
+      var _ = this;
+      _.modifier = t0;
+      _.type = t1;
+      _.conjunction = t2;
+      _.conditions = t3;
+    },
+    _SingletonCssMediaQueryMergeResult0: function _SingletonCssMediaQueryMergeResult0(t0) {
+      this._name = t0;
+    },
+    MediaQuerySuccessfulMergeResult0: function MediaQuerySuccessfulMergeResult0(t0) {
+      this.query = t0;
+    },
+    MediaQueryParser0: function MediaQueryParser0(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._parser0$_interpolationMap = t2;
+    },
+    MediaQueryParser_parse_closure0: function MediaQueryParser_parse_closure0(t0) {
+      this.$this = t0;
+    },
+    ModifiableCssMediaRule$0(queries, span) {
+      var t1 = A.List_List$unmodifiable(queries, type$.CssMediaQuery_2),
+        t2 = A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      if (J.get$isEmpty$asx(queries))
+        A.throwExpression(A.ArgumentError$value(queries, "queries", "may not be empty."));
+      return new A.ModifiableCssMediaRule0(t1, span, new A.UnmodifiableListView(t2, type$.UnmodifiableListView_ModifiableCssNode_2), t2);
+    },
+    ModifiableCssMediaRule0: function ModifiableCssMediaRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.queries = t0;
+      _.span = t1;
+      _.children = t2;
+      _._node$_children = t3;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    MediaRule$0(query, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.MediaRule0(query, span, t1, t2);
+    },
+    MediaRule0: function MediaRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.query = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    MergedExtension_merge0(left, right) {
+      var t2, t3, t4,
+        t1 = left.extender.selector;
+      if (!t1.$eq(0, right.extender.selector) || !left.target.$eq(0, right.target))
+        throw A.wrapException(A.ArgumentError$(left.toString$0(0) + " and " + right.toString$0(0) + " aren't the same extension.", null));
+      t2 = left.mediaContext;
+      t3 = t2 == null;
+      if (!t3) {
+        t4 = right.mediaContext;
+        t4 = t4 != null && !B.C_ListEquality.equals$2(0, t2, t4);
+      } else
+        t4 = false;
+      if (t4)
+        throw A.wrapException(A.SassException$0("From " + left.span.message$1(0, "") + string$.x0aYou_m, right.span, null));
+      if (right.isOptional && right.mediaContext == null)
+        return left;
+      if (left.isOptional && t3)
+        return right;
+      if (t3)
+        t2 = right.mediaContext;
+      t1.get$specificity();
+      t1 = new A.Extender0(t1, false);
+      return t1._extension$_extension = new A.MergedExtension0(left, right, t1, left.target, t2, true, left.span);
+    },
+    MergedExtension0: function MergedExtension0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.left = t0;
+      _.right = t1;
+      _.extender = t2;
+      _.target = t3;
+      _.mediaContext = t4;
+      _.isOptional = t5;
+      _.span = t6;
+    },
+    MergedMapView$0(maps, $K, $V) {
+      var t1 = $K._eval$1("@<0>")._bind$1($V);
+      t1 = new A.MergedMapView0(A.LinkedHashMap_LinkedHashMap$_empty($K, t1._eval$1("Map<1,2>")), t1._eval$1("MergedMapView0<1,2>"));
+      t1.MergedMapView$10(maps, $K, $V);
+      return t1;
+    },
+    MergedMapView0: function MergedMapView0(t0, t1) {
+      this._merged_map_view$_mapsByKey = t0;
+      this.$ti = t1;
+    },
+    _function12($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:meta");
+    },
+    global_closure59: function global_closure59() {
+    },
+    global_closure60: function global_closure60() {
+    },
+    global_closure61: function global_closure61() {
+    },
+    global_closure62: function global_closure62() {
+    },
+    local_closure2: function local_closure2() {
+    },
+    local_closure3: function local_closure3() {
+    },
+    local__closure0: function local__closure0() {
+    },
+    local_closure4: function local_closure4() {
+    },
+    mixinClass_closure: function mixinClass_closure() {
+    },
+    mixinClass__closure: function mixinClass__closure() {
+    },
+    mixinClass__closure0: function mixinClass__closure0() {
+    },
+    SassMixin0: function SassMixin0(t0) {
+      this.callable = t0;
+    },
+    MixinRule$0($name, $arguments, children, span, comment) {
+      var t1 = A.stringReplaceAllUnchecked($name, "_", "-"),
+        t2 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t3 = B.JSArray_methods.any$1(t2, new A.ParentStatement_closure0());
+      return new A.MixinRule0(t1, $name, $arguments, span, t2, t3);
+    },
+    MixinRule0: function MixinRule0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._mixin_rule$__MixinRule_hasContent_FI = $;
+      _.name = t0;
+      _.originalName = t1;
+      _.$arguments = t2;
+      _.span = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    _HasContentVisitor0: function _HasContentVisitor0() {
+    },
+    __HasContentVisitor_Object_StatementSearchVisitor0: function __HasContentVisitor_Object_StatementSearchVisitor0() {
+    },
+    ExtendMode0: function ExtendMode0(t0, t1) {
+      this.name = t0;
+      this._name = t1;
+    },
+    JSModule0: function JSModule0() {
+    },
+    JSModuleRequire0: function JSModuleRequire0() {
+    },
+    MultiSpan0: function MultiSpan0(t0, t1, t2) {
+      this._multi_span0$_primary = t0;
+      this.primaryLabel = t1;
+      this.secondarySpans = t2;
+    },
+    SupportsNegation0: function SupportsNegation0(t0, t1) {
+      this.condition = t0;
+      this.span = t1;
+    },
+    NoOpImporter0: function NoOpImporter0() {
+    },
+    NoSourceMapBuffer0: function NoSourceMapBuffer0(t0) {
+      this._no_source_map_buffer0$_buffer = t0;
+    },
+    _FakeAstNode0: function _FakeAstNode0(t0) {
+      this._node0$_callback = t0;
+    },
+    CssNode0: function CssNode0() {
+    },
+    CssParentNode0: function CssParentNode0() {
+    },
+    _IsInvisibleVisitor1: function _IsInvisibleVisitor1(t0, t1) {
+      this.includeBogus = t0;
+      this.includeComments = t1;
+    },
+    __IsInvisibleVisitor_Object_EveryCssVisitor0: function __IsInvisibleVisitor_Object_EveryCssVisitor0() {
+    },
+    ModifiableCssNode0: function ModifiableCssNode0() {
+    },
+    ModifiableCssNode_hasFollowingSibling_closure0: function ModifiableCssNode_hasFollowingSibling_closure0() {
+    },
+    ModifiableCssParentNode0: function ModifiableCssParentNode0() {
+    },
+    NodePackageImporter0: function NodePackageImporter0() {
+      this._node_package$__NodePackageImporter__entryPointDirectory_F = $;
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure3: function NodePackageImporter__nodePackageExportsResolve_closure3() {
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure4: function NodePackageImporter__nodePackageExportsResolve_closure4() {
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure5: function NodePackageImporter__nodePackageExportsResolve_closure5() {
+    },
+    NodePackageImporter__nodePackageExportsResolve_closure6: function NodePackageImporter__nodePackageExportsResolve_closure6(t0, t1, t2) {
+      this.$this = t0;
+      this.exports = t1;
+      this.packageRoot = t2;
+    },
+    NodePackageImporter__nodePackageExportsResolve__closure1: function NodePackageImporter__nodePackageExportsResolve__closure1(t0, t1, t2) {
+      this.$this = t0;
+      this.variant = t1;
+      this.packageRoot = t2;
+    },
+    NodePackageImporter__nodePackageExportsResolve__closure2: function NodePackageImporter__nodePackageExportsResolve__closure2() {
+    },
+    NodePackageImporter__getMainExport_closure0: function NodePackageImporter__getMainExport_closure0() {
+    },
+    NullExpression0: function NullExpression0(t0) {
+      this.span = t0;
+    },
+    legacyNullClass_closure: function legacyNullClass_closure() {
+    },
+    legacyNullClass__closure: function legacyNullClass__closure() {
+    },
+    _SassNull0: function _SassNull0() {
+    },
+    NumberExpression0: function NumberExpression0(t0, t1, t2) {
+      this.value = t0;
+      this.unit = t1;
+      this.span = t2;
+    },
+    numberClass_closure: function numberClass_closure() {
+    },
+    numberClass__closure: function numberClass__closure() {
+    },
+    numberClass__closure0: function numberClass__closure0() {
+    },
+    numberClass__closure1: function numberClass__closure1() {
+    },
+    numberClass__closure2: function numberClass__closure2() {
+    },
+    numberClass__closure3: function numberClass__closure3() {
+    },
+    numberClass__closure4: function numberClass__closure4() {
+    },
+    numberClass__closure5: function numberClass__closure5() {
+    },
+    numberClass__closure6: function numberClass__closure6() {
+    },
+    numberClass__closure7: function numberClass__closure7() {
+    },
+    numberClass__closure8: function numberClass__closure8() {
+    },
+    numberClass__closure9: function numberClass__closure9() {
+    },
+    numberClass__closure10: function numberClass__closure10() {
+    },
+    numberClass__closure11: function numberClass__closure11() {
+    },
+    numberClass__closure12: function numberClass__closure12() {
+    },
+    numberClass__closure13: function numberClass__closure13() {
+    },
+    numberClass__closure14: function numberClass__closure14() {
+    },
+    numberClass__closure15: function numberClass__closure15() {
+    },
+    numberClass__closure16: function numberClass__closure16() {
+    },
+    numberClass__closure17: function numberClass__closure17() {
+    },
+    numberClass__closure18: function numberClass__closure18() {
+    },
+    numberClass__closure19: function numberClass__closure19() {
+    },
+    _ConstructorOptions0: function _ConstructorOptions0() {
+    },
+    _parseNumber(value, unit) {
+      var invalidUnit, operands, t1, numerator, denominator, numeratorUnits, denominatorUnits;
+      if (unit == null || unit.length === 0)
+        return A.SassNumber_SassNumber0(value, null);
+      if (!J.contains$1$asx(unit, "*") && !B.JSString_methods.contains$1(unit, "/"))
+        return A.SassNumber_SassNumber0(value, unit);
+      invalidUnit = new A.ArgumentError(true, unit, "unit", "is invalid.");
+      operands = unit.split("/");
+      t1 = operands.length;
+      if (t1 > 2)
+        throw A.wrapException(invalidUnit);
+      numerator = operands[0];
+      denominator = t1 === 1 ? null : operands[1];
+      t1 = type$.JSArray_String;
+      numeratorUnits = numerator.length === 0 ? A._setArrayType([], t1) : A._setArrayType(numerator.split("*"), t1);
+      if (B.JSArray_methods.any$1(numeratorUnits, new A._parseNumber_closure()))
+        throw A.wrapException(invalidUnit);
+      denominatorUnits = denominator == null ? A._setArrayType([], t1) : A._setArrayType(denominator.split("*"), t1);
+      if (B.JSArray_methods.any$1(denominatorUnits, new A._parseNumber_closure0()))
+        throw A.wrapException(invalidUnit);
+      return A.SassNumber_SassNumber$withUnits0(value, denominatorUnits, numeratorUnits);
+    },
+    _NodeSassNumber: function _NodeSassNumber() {
+    },
+    legacyNumberClass_closure: function legacyNumberClass_closure() {
+    },
+    legacyNumberClass_closure0: function legacyNumberClass_closure0() {
+    },
+    legacyNumberClass_closure1: function legacyNumberClass_closure1() {
+    },
+    legacyNumberClass_closure2: function legacyNumberClass_closure2() {
+    },
+    legacyNumberClass_closure3: function legacyNumberClass_closure3() {
+    },
+    _parseNumber_closure: function _parseNumber_closure() {
+    },
+    _parseNumber_closure0: function _parseNumber_closure0() {
+    },
+    conversionFactor0(unit1, unit2) {
+      var _0_0;
+      if (unit1 === unit2)
+        return 1;
+      _0_0 = B.Map_gQqJO.$index(0, unit1);
+      if (_0_0 != null)
+        return _0_0.$index(0, unit2);
+      return null;
+    },
+    SassNumber_SassNumber0(value, unit) {
+      return unit == null ? new A.UnitlessSassNumber0(value, null) : new A.SingleUnitSassNumber0(unit, value, null);
+    },
+    SassNumber_SassNumber$withUnits0(value, denominatorUnits, numeratorUnits) {
+      var _0_4, _0_6, _0_8_isSet, _0_8, _0_10_isSet, _0_10, _0_7, t2, _0_4_isSet, unit, _0_7_isSet, numerators, t3, denominators, unsimplifiedDenominators, valueDouble, _i, denominator, simplifiedAway, i, factor, _1_2, _1_7_isSet, _1_7, _null = null,
+        _0_3 = numeratorUnits == null,
+        t1 = _0_3,
+        _0_6_isSet = !t1;
+      if (_0_6_isSet) {
+        _0_4 = J.get$length$asx(numeratorUnits == null ? type$.List_String._as(numeratorUnits) : numeratorUnits);
+        t1 = _0_4;
+        _0_6 = t1 <= 0;
+        _0_8_isSet = _0_6;
+      } else {
+        _0_4 = _null;
+        _0_6 = _0_4;
+        _0_8_isSet = true;
+      }
+      if (_0_8_isSet) {
+        _0_8 = denominatorUnits == null;
+        t1 = _0_8;
+        _0_10_isSet = !t1;
+        if (_0_10_isSet) {
+          _0_10 = J.get$length$asx(denominatorUnits == null ? type$.List_String._as(denominatorUnits) : denominatorUnits) <= 0;
+          t1 = _0_10;
+        } else {
+          _0_10 = _null;
+          t1 = true;
+        }
+        _0_7 = denominatorUnits;
+      } else {
+        _0_10 = _null;
+        _0_7 = _0_10;
+        _0_8 = _0_7;
+        _0_10_isSet = false;
+        t1 = false;
+      }
+      if (t1)
+        return new A.UnitlessSassNumber0(value, _null);
+      t1 = type$.List_String;
+      if (t1._is(numeratorUnits)) {
+        if (_0_6_isSet) {
+          t2 = _0_4;
+          _0_4_isSet = _0_6_isSet;
+        } else {
+          _0_4 = J.get$length$asx(numeratorUnits);
+          t2 = _0_4;
+          _0_4_isSet = true;
+        }
+        if (t2 === 1) {
+          unit = J.$index$asx(numeratorUnits, 0);
+          if (_0_8_isSet) {
+            t2 = _0_8;
+            _0_7_isSet = _0_8_isSet;
+          } else {
+            _0_8 = denominatorUnits == null;
+            t2 = _0_8;
+            _0_7 = denominatorUnits;
+            _0_8_isSet = true;
+            _0_7_isSet = true;
+          }
+          if (!t2)
+            if (_0_10_isSet)
+              t2 = _0_10;
+            else {
+              if (_0_7_isSet)
+                t2 = _0_7;
+              else {
+                t2 = denominatorUnits;
+                _0_7 = t2;
+                _0_7_isSet = true;
+              }
+              _0_10 = J.get$length$asx(t2 == null ? t1._as(t2) : t2) <= 0;
+              t2 = _0_10;
+              _0_10_isSet = true;
+            }
+          else
+            t2 = true;
+        } else {
+          unit = _null;
+          _0_7_isSet = _0_8_isSet;
+          t2 = false;
+        }
+      } else {
+        unit = _null;
+        _0_7_isSet = _0_8_isSet;
+        _0_4_isSet = _0_6_isSet;
+        t2 = false;
+      }
+      if (t2)
+        return new A.SingleUnitSassNumber0(unit, value, _null);
+      t2 = numeratorUnits == null;
+      if (!t2) {
+        numerators = numeratorUnits;
+        if (_0_8_isSet)
+          t3 = _0_8;
+        else {
+          if (_0_7_isSet)
+            t3 = _0_7;
+          else {
+            t3 = denominatorUnits;
+            _0_7 = t3;
+            _0_7_isSet = true;
+          }
+          _0_8 = t3 == null;
+          t3 = _0_8;
+        }
+        if (!t3)
+          if (_0_10_isSet)
+            t3 = _0_10;
+          else {
+            if (_0_7_isSet)
+              t3 = _0_7;
+            else {
+              t3 = denominatorUnits;
+              _0_7 = t3;
+              _0_7_isSet = true;
+            }
+            _0_10 = J.get$length$asx(t3 == null ? t1._as(t3) : t3) <= 0;
+            t3 = _0_10;
+          }
+        else
+          t3 = true;
+      } else {
+        numerators = _null;
+        t3 = false;
+      }
+      if (t3)
+        return new A.ComplexSassNumber0(A.List_List$unmodifiable(numerators, type$.String), B.List_empty, value, _null);
+      if (!_0_3)
+        if (_0_6_isSet)
+          t2 = _0_6;
+        else {
+          if (_0_4_isSet)
+            t2 = _0_4;
+          else {
+            _0_4 = J.get$length$asx(t2 ? t1._as(numeratorUnits) : numeratorUnits);
+            t2 = _0_4;
+          }
+          _0_6 = t2 <= 0;
+          t2 = _0_6;
+        }
+      else
+        t2 = true;
+      if (t2) {
+        if (_0_7_isSet)
+          t2 = _0_7;
+        else {
+          t2 = denominatorUnits;
+          _0_7 = t2;
+          _0_7_isSet = true;
+        }
+        t2 = t2 != null;
+        if (t2) {
+          denominators = _0_7_isSet ? _0_7 : denominatorUnits;
+          if (denominators == null)
+            denominators = t1._as(denominators);
+        } else
+          denominators = _null;
+        t1 = t2;
+      } else {
+        denominators = _null;
+        t1 = false;
+      }
+      if (t1)
+        return new A.ComplexSassNumber0(B.List_empty, A.List_List$unmodifiable(denominators, type$.String), value, _null);
+      numeratorUnits.toString;
+      numerators = J.toList$0$ax(numeratorUnits);
+      denominatorUnits.toString;
+      unsimplifiedDenominators = J.toList$0$ax(denominatorUnits);
+      denominators = A._setArrayType([], type$.JSArray_String);
+      for (t1 = unsimplifiedDenominators.length, valueDouble = value, _i = 0; _i < unsimplifiedDenominators.length; unsimplifiedDenominators.length === t1 || (0, A.throwConcurrentModificationError)(unsimplifiedDenominators), ++_i) {
+        denominator = unsimplifiedDenominators[_i];
+        i = 0;
+        while (true) {
+          if (!(i < numerators.length)) {
+            simplifiedAway = false;
+            break;
+          }
+          c$0: {
+            factor = A.conversionFactor0(denominator, numerators[i]);
+            if (factor == null)
+              break c$0;
+            valueDouble *= factor;
+            B.JSArray_methods.removeAt$1(numerators, i);
+            simplifiedAway = true;
+            break;
+          }
+          ++i;
+        }
+        if (!simplifiedAway)
+          denominators.push(denominator);
+      }
+      $label0$1: {
+        _1_2 = numerators.length;
+        t1 = _1_2;
+        _1_7_isSet = t1 <= 0;
+        if (_1_7_isSet) {
+          _1_7 = denominators.length <= 0;
+          t1 = _1_7;
+        } else {
+          _1_7 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = new A.UnitlessSassNumber0(valueDouble, _null);
+          break $label0$1;
+        }
+        if (_1_2 === 1) {
+          unit = numerators[0];
+          t1 = _1_7_isSet ? _1_7 : denominators.length <= 0;
+        } else {
+          unit = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = new A.SingleUnitSassNumber0(unit, valueDouble, _null);
+          break $label0$1;
+        }
+        t1 = type$.String;
+        t1 = new A.ComplexSassNumber0(A.List_List$unmodifiable(numerators, t1), A.List_List$unmodifiable(denominators, t1), valueDouble, _null);
+        break $label0$1;
+      }
+      return t1;
+    },
+    SassNumber0: function SassNumber0() {
+    },
+    SassNumber__coerceOrConvertValue_compatibilityException0: function SassNumber__coerceOrConvertValue_compatibilityException0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.$this = t0;
+      _.other = t1;
+      _.otherName = t2;
+      _.otherHasUnits = t3;
+      _.name = t4;
+      _.newNumerators = t5;
+      _.newDenominators = t6;
+    },
+    SassNumber__coerceOrConvertValue_closure3: function SassNumber__coerceOrConvertValue_closure3(t0, t1) {
+      this._box_0 = t0;
+      this.newNumerator = t1;
+    },
+    SassNumber__coerceOrConvertValue_closure4: function SassNumber__coerceOrConvertValue_closure4(t0) {
+      this.compatibilityException = t0;
+    },
+    SassNumber__coerceOrConvertValue_closure5: function SassNumber__coerceOrConvertValue_closure5(t0, t1) {
+      this._box_0 = t0;
+      this.newDenominator = t1;
+    },
+    SassNumber__coerceOrConvertValue_closure6: function SassNumber__coerceOrConvertValue_closure6(t0) {
+      this.compatibilityException = t0;
+    },
+    SassNumber_plus_closure0: function SassNumber_plus_closure0() {
+    },
+    SassNumber_minus_closure0: function SassNumber_minus_closure0() {
+    },
+    SassNumber_multiplyUnits_closure3: function SassNumber_multiplyUnits_closure3(t0, t1) {
+      this._box_0 = t0;
+      this.numerator = t1;
+    },
+    SassNumber_multiplyUnits_closure4: function SassNumber_multiplyUnits_closure4(t0, t1) {
+      this.newNumerators = t0;
+      this.numerator = t1;
+    },
+    SassNumber_multiplyUnits_closure5: function SassNumber_multiplyUnits_closure5(t0, t1) {
+      this._box_0 = t0;
+      this.numerator = t1;
+    },
+    SassNumber_multiplyUnits_closure6: function SassNumber_multiplyUnits_closure6(t0, t1) {
+      this.newNumerators = t0;
+      this.numerator = t1;
+    },
+    SassNumber__areAnyConvertible_closure0: function SassNumber__areAnyConvertible_closure0(t0) {
+      this.units2 = t0;
+    },
+    SassNumber__canonicalizeUnitList_closure0: function SassNumber__canonicalizeUnitList_closure0() {
+    },
+    SassNumber__canonicalMultiplier_closure0: function SassNumber__canonicalMultiplier_closure0(t0) {
+      this.$this = t0;
+    },
+    SassNumber_unitSuggestion_closure1: function SassNumber_unitSuggestion_closure1() {
+    },
+    SassNumber_unitSuggestion_closure2: function SassNumber_unitSuggestion_closure2() {
+    },
+    SupportsOperation$0(left, right, operator, span) {
+      var lowerOperator = operator.toLowerCase();
+      if (lowerOperator !== "and" && lowerOperator !== "or")
+        A.throwExpression(A.ArgumentError$value(operator, "operator", 'may only be "and" or "or".'));
+      return new A.SupportsOperation0(left, right, operator, span);
+    },
+    SupportsOperation0: function SupportsOperation0(t0, t1, t2, t3) {
+      var _ = this;
+      _.left = t0;
+      _.right = t1;
+      _.operator = t2;
+      _.span = t3;
+    },
+    ParentSelector0: function ParentSelector0(t0, t1) {
+      this.suffix = t0;
+      this.span = t1;
+    },
+    ParentStatement0: function ParentStatement0() {
+    },
+    ParentStatement_closure0: function ParentStatement_closure0() {
+    },
+    ParentStatement__closure0: function ParentStatement__closure0() {
+    },
+    ParenthesizedExpression0: function ParenthesizedExpression0(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    Parser_isIdentifier0(text) {
+      var t1, t2, exception, logger = null;
+      try {
+        t1 = logger;
+        t2 = A.SpanScanner$(text, null);
+        new A.Parser1(t2, t1 == null ? B.StderrLogger_false0 : t1, null)._parser0$_parseIdentifier$0();
+        return true;
+      } catch (exception) {
+        if (type$.SassFormatException_2._is(A.unwrapException(exception)))
+          return false;
+        else
+          throw exception;
+      }
+    },
+    Parser1: function Parser1(t0, t1, t2) {
+      this.scanner = t0;
+      this.logger = t1;
+      this._parser0$_interpolationMap = t2;
+    },
+    Parser__parseIdentifier_closure0: function Parser__parseIdentifier_closure0(t0) {
+      this.$this = t0;
+    },
+    Parser_escape_closure0: function Parser_escape_closure0() {
+    },
+    Parser_scanIdentChar_matches0: function Parser_scanIdentChar_matches0(t0, t1) {
+      this.caseSensitive = t0;
+      this.char = t1;
+    },
+    Parser_spanFrom_closure0: function Parser_spanFrom_closure0(t0, t1) {
+      this.$this = t0;
+      this.span = t1;
+    },
+    PlaceholderSelector0: function PlaceholderSelector0(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    PlainCssCallable0: function PlainCssCallable0(t0) {
+      this.name = t0;
+    },
+    PrefixedMapView0: function PrefixedMapView0(t0, t1, t2) {
+      this._prefixed_map_view0$_map = t0;
+      this._prefixed_map_view0$_prefix = t1;
+      this.$ti = t2;
+    },
+    _PrefixedKeys0: function _PrefixedKeys0(t0) {
+      this._prefixed_map_view0$_view = t0;
+    },
+    _PrefixedKeys_iterator_closure0: function _PrefixedKeys_iterator_closure0(t0) {
+      this.$this = t0;
+    },
+    PseudoSelector$0($name, span, argument, element, selector) {
+      var t1 = !element,
+        t2 = t1 && !A.PseudoSelector__isFakePseudoElement0($name);
+      return new A.PseudoSelector0($name, A.unvendor0($name), t2, t1, argument, selector, span);
+    },
+    PseudoSelector__isFakePseudoElement0($name) {
+      switch ($name.charCodeAt(0)) {
+        case 97:
+        case 65:
+          return A.equalsIgnoreCase0($name, "after");
+        case 98:
+        case 66:
+          return A.equalsIgnoreCase0($name, "before");
+        case 102:
+        case 70:
+          return A.equalsIgnoreCase0($name, "first-line") || A.equalsIgnoreCase0($name, "first-letter");
+        default:
+          return false;
+      }
+    },
+    PseudoSelector0: function PseudoSelector0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _.name = t0;
+      _.normalizedName = t1;
+      _.isClass = t2;
+      _.isSyntacticClass = t3;
+      _.argument = t4;
+      _.selector = t5;
+      _._pseudo$__PseudoSelector_specificity_FI = $;
+      _.span = t6;
+    },
+    PseudoSelector_specificity_closure0: function PseudoSelector_specificity_closure0(t0) {
+      this.$this = t0;
+    },
+    PseudoSelector_specificity__closure1: function PseudoSelector_specificity__closure1() {
+    },
+    PseudoSelector_specificity__closure2: function PseudoSelector_specificity__closure2() {
+    },
+    PseudoSelector_unify_closure0: function PseudoSelector_unify_closure0() {
+    },
+    PublicMemberMapView0: function PublicMemberMapView0(t0, t1) {
+      this._public_member_map_view0$_inner = t0;
+      this.$ti = t1;
+    },
+    QualifiedName0: function QualifiedName0(t0, t1) {
+      this.name = t0;
+      this.namespace = t1;
+    },
+    createJSClass($name, $constructor) {
+      return type$.JSClass._as(A.allowInteropCaptureThisNamed($name, $constructor));
+    },
+    JSClassExtension_injectSuperclass(_this, superclass) {
+      var t1 = J.getInterceptor$x(superclass),
+        t2 = J.getInterceptor$x(_this);
+      self.Object.setPrototypeOf(t1.get$$prototype(superclass), J.get$$prototype$x(type$.JSClass._as(self.Object.getPrototypeOf(t2.get$$prototype(_this)).constructor)));
+      self.Object.setPrototypeOf(t2.get$$prototype(_this), self.Object.create(t1.get$$prototype(superclass)));
+    },
+    JSClassExtension_setCustomInspect(_this, inspect) {
+      if (self.util == null)
+        return;
+      J.get$$prototype$x(_this)[self.util.inspect.custom] = A.allowInteropCaptureThis(new A.JSClassExtension_setCustomInspect_closure(inspect));
+    },
+    JSClassExtension_get_defineStaticMethod(_this) {
+      return new A.JSClassExtension_get_defineStaticMethod_closure(_this);
+    },
+    JSClassExtension_get_defineMethod(_this) {
+      return new A.JSClassExtension_get_defineMethod_closure(_this);
+    },
+    JSClassExtension_defineMethods(_this, methods) {
+      methods.forEach$1(0, A.JSClassExtension_get_defineMethod(_this));
+    },
+    JSClassExtension_get_defineGetter(_this) {
+      return new A.JSClassExtension_get_defineGetter_closure(_this);
+    },
+    JSClass0: function JSClass0() {
+    },
+    JSClassExtension_setCustomInspect_closure: function JSClassExtension_setCustomInspect_closure(t0) {
+      this.inspect = t0;
+    },
+    JSClassExtension_get_defineStaticMethod_closure: function JSClassExtension_get_defineStaticMethod_closure(t0) {
+      this._this = t0;
+    },
+    JSClassExtension_get_defineMethod_closure: function JSClassExtension_get_defineMethod_closure(t0) {
+      this._this = t0;
+    },
+    JSClassExtension_get_defineGetter_closure: function JSClassExtension_get_defineGetter_closure(t0) {
+      this._this = t0;
+    },
+    RenderContext0: function RenderContext0() {
+    },
+    RenderContextOptions0: function RenderContextOptions0() {
+    },
+    RenderContextResult0: function RenderContextResult0() {
+    },
+    RenderContextResultStats0: function RenderContextResultStats0() {
+    },
+    RenderOptions: function RenderOptions() {
+    },
+    RenderResult: function RenderResult() {
+    },
+    RenderResultStats: function RenderResultStats() {
+    },
+    ReplaceExpressionVisitor0: function ReplaceExpressionVisitor0() {
+    },
+    ReplaceExpressionVisitor_visitListExpression_closure0: function ReplaceExpressionVisitor_visitListExpression_closure0(t0) {
+      this.$this = t0;
+    },
+    ReplaceExpressionVisitor_visitArgumentInvocation_closure0: function ReplaceExpressionVisitor_visitArgumentInvocation_closure0(t0) {
+      this.$this = t0;
+    },
+    ReplaceExpressionVisitor_visitInterpolation_closure0: function ReplaceExpressionVisitor_visitInterpolation_closure0(t0) {
+      this.$this = t0;
+    },
+    ImporterResult$(contents, sourceMapUrl, syntax) {
+      if ((sourceMapUrl == null ? null : sourceMapUrl.get$scheme()) === "")
+        A.throwExpression(A.ArgumentError$value(sourceMapUrl, "sourceMapUrl", "must be absolute"));
+      return new A.ImporterResult0(contents, sourceMapUrl, syntax);
+    },
+    ImporterResult0: function ImporterResult0(t0, t1, t2) {
+      this.contents = t0;
+      this._result$_sourceMapUrl = t1;
+      this.syntax = t2;
+    },
+    ReturnRule0: function ReturnRule0(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    SassParser0: function SassParser0(t0, t1, t2, t3) {
+      var _ = this;
+      _._sass0$_currentIndentation = 0;
+      _._sass0$_spaces = _._sass0$_nextIndentationEnd = _._sass0$_nextIndentation = null;
+      _._stylesheet0$_isUseAllowed = true;
+      _._stylesheet0$_inExpression = _._stylesheet0$_inParentheses = _._stylesheet0$_inStyleRule = _._stylesheet0$_inUnknownAtRule = _._stylesheet0$_inControlDirective = _._stylesheet0$_inContentBlock = _._stylesheet0$_inMixin = false;
+      _._stylesheet0$_globalVariables = t0;
+      _.lastSilentComment = null;
+      _.scanner = t1;
+      _.logger = t2;
+      _._parser0$_interpolationMap = t3;
+    },
+    SassParser_styleRuleSelector_closure0: function SassParser_styleRuleSelector_closure0() {
+    },
+    SassParser_children_closure0: function SassParser_children_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.child = t1;
+      this.children = t2;
+    },
+    SassParser__peekIndentation_closure1: function SassParser__peekIndentation_closure1() {
+    },
+    SassParser__peekIndentation_closure2: function SassParser__peekIndentation_closure2() {
+    },
+    _translateReturnValue(val) {
+      if (val instanceof A._Future)
+        return A.futureToPromise(val, type$.dynamic);
+      else
+        return val;
+    },
+    main2() {
+      new Uint8Array(0);
+      A.main();
+      J.set$cli_pkg_main_0_$x(self.exports, A._wrapMain(A.sass__main$closure()));
+    },
+    _wrapMain(main) {
+      if (type$.dynamic_Function._is(main))
+        return A.allowInterop(new A._wrapMain_closure(main));
+      else
+        return A.allowInterop(new A._wrapMain_closure0(main));
+    },
+    _Exports: function _Exports() {
+    },
+    _wrapMain_closure: function _wrapMain_closure(t0) {
+      this.main = t0;
+    },
+    _wrapMain_closure0: function _wrapMain_closure0(t0) {
+      this.main = t0;
+    },
+    ScssParser$0(contents, logger, url) {
+      var t1 = A.SpanScanner$(contents, url),
+        t2 = logger == null ? B.StderrLogger_false0 : logger;
+      return new A.ScssParser0(A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.VariableDeclaration_2), t1, t2, null);
+    },
+    ScssParser0: function ScssParser0(t0, t1, t2, t3) {
+      var _ = this;
+      _._stylesheet0$_isUseAllowed = true;
+      _._stylesheet0$_inExpression = _._stylesheet0$_inParentheses = _._stylesheet0$_inStyleRule = _._stylesheet0$_inUnknownAtRule = _._stylesheet0$_inControlDirective = _._stylesheet0$_inContentBlock = _._stylesheet0$_inMixin = false;
+      _._stylesheet0$_globalVariables = t0;
+      _.lastSilentComment = null;
+      _.scanner = t1;
+      _.logger = t2;
+      _._parser0$_interpolationMap = t3;
+    },
+    Selector0: function Selector0() {
+    },
+    _IsInvisibleVisitor2: function _IsInvisibleVisitor2(t0) {
+      this.includeBogus = t0;
+    },
+    _IsBogusVisitor0: function _IsBogusVisitor0(t0) {
+      this.includeLeadingCombinator = t0;
+    },
+    _IsBogusVisitor_visitComplexSelector_closure0: function _IsBogusVisitor_visitComplexSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    _IsUselessVisitor0: function _IsUselessVisitor0() {
+    },
+    _IsUselessVisitor_visitComplexSelector_closure0: function _IsUselessVisitor_visitComplexSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    __IsBogusVisitor_Object_AnySelectorVisitor0: function __IsBogusVisitor_Object_AnySelectorVisitor0() {
+    },
+    __IsInvisibleVisitor_Object_AnySelectorVisitor0: function __IsInvisibleVisitor_Object_AnySelectorVisitor0() {
+    },
+    __IsUselessVisitor_Object_AnySelectorVisitor0: function __IsUselessVisitor_Object_AnySelectorVisitor0() {
+    },
+    SelectorExpression0: function SelectorExpression0(t0) {
+      this.span = t0;
+    },
+    _prependParent0(compound) {
+      var _0_3, _0_4, _0_4_isSet, rest, _null = null,
+        t1 = A.EvaluationContext_currentOrNull0(),
+        span = (t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan(),
+        _0_0 = compound.components;
+      $label0$0: {
+        _0_3 = _0_0.length >= 1;
+        if (_0_3) {
+          _0_4 = _0_0[0];
+          t1 = _0_4;
+          t1 = t1 instanceof A.UniversalSelector0;
+        } else {
+          _0_4 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _null;
+          break $label0$0;
+        }
+        if (_0_3) {
+          t1 = _0_4;
+          if (t1 instanceof A.TypeSelector0) {
+            t1 = _0_4;
+            t1 = type$.TypeSelector_2._as(t1).name.namespace != null;
+            _0_4_isSet = true;
+          } else {
+            _0_4_isSet = true;
+            t1 = false;
+          }
+        } else {
+          _0_4_isSet = _0_3;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _null;
+          break $label0$0;
+        }
+        if (_0_3) {
+          if (_0_4_isSet)
+            t1 = _0_4;
+          else {
+            _0_4 = _0_0[0];
+            t1 = _0_4;
+            _0_4_isSet = true;
+          }
+          t1 = t1 instanceof A.TypeSelector0;
+        } else
+          t1 = false;
+        if (t1) {
+          t1 = _0_4_isSet ? _0_4 : _0_0[0];
+          type$.TypeSelector_2._as(t1);
+          rest = B.JSArray_methods.sublist$1(_0_0, 1);
+          t1 = A._setArrayType([new A.ParentSelector0(t1.name.name, span)], type$.JSArray_SimpleSelector_2);
+          B.JSArray_methods.addAll$1(t1, rest);
+          t1 = A.CompoundSelector$0(t1, span);
+          break $label0$0;
+        }
+        t1 = A._setArrayType([new A.ParentSelector0(_null, span)], type$.JSArray_SimpleSelector_2);
+        B.JSArray_methods.addAll$1(t1, _0_0);
+        t1 = A.CompoundSelector$0(t1, span);
+        break $label0$0;
+      }
+      return t1;
+    },
+    _function7($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:selector");
+    },
+    _nest_closure0: function _nest_closure0() {
+    },
+    _nest__closure1: function _nest__closure1(t0) {
+      this._box_0 = t0;
+    },
+    _nest__closure2: function _nest__closure2() {
+    },
+    _append_closure1: function _append_closure1() {
+    },
+    _append__closure1: function _append__closure1() {
+    },
+    _append__closure2: function _append__closure2(t0) {
+      this.span = t0;
+    },
+    _append___closure0: function _append___closure0(t0, t1) {
+      this.parent = t0;
+      this.span = t1;
+    },
+    _extend_closure0: function _extend_closure0() {
+    },
+    _replace_closure0: function _replace_closure0() {
+    },
+    _unify_closure0: function _unify_closure0() {
+    },
+    _isSuperselector_closure0: function _isSuperselector_closure0() {
+    },
+    _simpleSelectors_closure0: function _simpleSelectors_closure0() {
+    },
+    _simpleSelectors__closure0: function _simpleSelectors__closure0() {
+    },
+    _parse_closure0: function _parse_closure0() {
+    },
+    SelectorParser$0(contents, allowParent, interpolationMap, logger, plainCss, url) {
+      var t1 = A.SpanScanner$(contents, url);
+      return new A.SelectorParser0(allowParent, plainCss, t1, logger == null ? B.StderrLogger_false0 : logger, interpolationMap);
+    },
+    SelectorParser0: function SelectorParser0(t0, t1, t2, t3, t4) {
+      var _ = this;
+      _._selector$_allowParent = t0;
+      _._selector$_plainCss = t1;
+      _.scanner = t2;
+      _.logger = t3;
+      _._parser0$_interpolationMap = t4;
+    },
+    SelectorParser_parse_closure0: function SelectorParser_parse_closure0(t0) {
+      this.$this = t0;
+    },
+    SelectorParser_parseCompoundSelector_closure0: function SelectorParser_parseCompoundSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    SelectorSearchVisitor0: function SelectorSearchVisitor0() {
+    },
+    SelectorSearchVisitor_visitComplexSelector_closure0: function SelectorSearchVisitor_visitComplexSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    SelectorSearchVisitor_visitCompoundSelector_closure0: function SelectorSearchVisitor_visitCompoundSelector_closure0(t0) {
+      this.$this = t0;
+    },
+    serialize0(node, charset, indentWidth, inspect, lineFeed, sourceMap, style, useSpaces) {
+      var t1, css, t2, prefix,
+        visitor = A._SerializeVisitor$0(indentWidth == null ? 2 : indentWidth, inspect, lineFeed, true, sourceMap, style, useSpaces);
+      node.accept$1(visitor);
+      t1 = visitor._serialize0$_buffer;
+      css = t1.toString$0(0);
+      if (charset) {
+        t2 = new A.CodeUnits(css);
+        t2 = t2.any$1(t2, new A.serialize_closure0());
+      } else
+        t2 = false;
+      if (t2)
+        prefix = style === B.OutputStyle_10 ? "\ufeff" : '@charset "UTF-8";\n';
+      else
+        prefix = "";
+      t1 = sourceMap ? t1.buildSourceMap$1$prefix(prefix) : null;
+      return new A._Record_2_sourceMap(prefix + css, t1);
+    },
+    serializeValue0(value, inspect, quote) {
+      var visitor = A._SerializeVisitor$0(null, inspect, null, quote, false, null, true);
+      value.accept$1(visitor);
+      return visitor._serialize0$_buffer.toString$0(0);
+    },
+    serializeSelector0(selector, inspect) {
+      var visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+      selector.accept$1(visitor);
+      return visitor._serialize0$_buffer.toString$0(0);
+    },
+    _SerializeVisitor$0(indentWidth, inspect, lineFeed, quote, sourceMap, style, useSpaces) {
+      var t1 = sourceMap ? new A.SourceMapBuffer0(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Entry)) : new A.NoSourceMapBuffer0(new A.StringBuffer("")),
+        t2 = style == null ? B.OutputStyle_00 : style,
+        t3 = useSpaces ? 32 : 9,
+        t4 = indentWidth == null ? 2 : indentWidth,
+        t5 = lineFeed == null ? B.LineFeed_LvD : lineFeed;
+      A.RangeError_checkValueInInterval(t4, 0, 10, "indentWidth");
+      return new A._SerializeVisitor0(t1, t2, inspect, quote, t3, t4, t5);
+    },
+    serialize_closure0: function serialize_closure0() {
+    },
+    _SerializeVisitor0: function _SerializeVisitor0(t0, t1, t2, t3, t4, t5, t6) {
+      var _ = this;
+      _._serialize0$_buffer = t0;
+      _._serialize0$_indentation = 0;
+      _._serialize0$_style = t1;
+      _._serialize0$_inspect = t2;
+      _._serialize0$_quote = t3;
+      _._serialize0$_indentCharacter = t4;
+      _._serialize0$_indentWidth = t5;
+      _._lineFeed = t6;
+    },
+    _SerializeVisitor_visitCssComment_closure0: function _SerializeVisitor_visitCssComment_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssAtRule_closure0: function _SerializeVisitor_visitCssAtRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssMediaRule_closure0: function _SerializeVisitor_visitCssMediaRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssImport_closure0: function _SerializeVisitor_visitCssImport_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssImport__closure0: function _SerializeVisitor_visitCssImport__closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssKeyframeBlock_closure0: function _SerializeVisitor_visitCssKeyframeBlock_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssStyleRule_closure0: function _SerializeVisitor_visitCssStyleRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssSupportsRule_closure0: function _SerializeVisitor_visitCssSupportsRule_closure0(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssDeclaration_closure1: function _SerializeVisitor_visitCssDeclaration_closure1(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitCssDeclaration_closure2: function _SerializeVisitor_visitCssDeclaration_closure2(t0, t1) {
+      this.$this = t0;
+      this.node = t1;
+    },
+    _SerializeVisitor_visitList_closure2: function _SerializeVisitor_visitList_closure2() {
+    },
+    _SerializeVisitor_visitList_closure3: function _SerializeVisitor_visitList_closure3(t0, t1) {
+      this.$this = t0;
+      this.value = t1;
+    },
+    _SerializeVisitor_visitList_closure4: function _SerializeVisitor_visitList_closure4(t0) {
+      this.$this = t0;
+    },
+    _SerializeVisitor_visitMap_closure0: function _SerializeVisitor_visitMap_closure0(t0) {
+      this.$this = t0;
+    },
+    _SerializeVisitor_visitSelectorList_closure0: function _SerializeVisitor_visitSelectorList_closure0() {
+    },
+    _SerializeVisitor__write_closure0: function _SerializeVisitor__write_closure0(t0, t1) {
+      this.$this = t0;
+      this.value = t1;
+    },
+    _SerializeVisitor__visitChildren_closure1: function _SerializeVisitor__visitChildren_closure1(t0, t1) {
+      this.$this = t0;
+      this.child = t1;
+    },
+    _SerializeVisitor__visitChildren_closure2: function _SerializeVisitor__visitChildren_closure2(t0, t1) {
+      this.$this = t0;
+      this.child = t1;
+    },
+    OutputStyle0: function OutputStyle0(t0) {
+      this._name = t0;
+    },
+    LineFeed0: function LineFeed0(t0, t1, t2) {
+      this.name = t0;
+      this.text = t1;
+      this._name = t2;
+    },
+    ShadowedModuleView_ifNecessary0(inner, functions, mixins, variables, $T) {
+      return A.ShadowedModuleView__needsBlocklist0(inner.get$variables(), variables) || A.ShadowedModuleView__needsBlocklist0(inner.get$functions(inner), functions) || A.ShadowedModuleView__needsBlocklist0(inner.get$mixins(), mixins) ? new A.ShadowedModuleView0(inner, A.ShadowedModuleView__shadowedMap0(inner.get$variables(), variables, type$.Value_2), A.ShadowedModuleView__shadowedMap0(inner.get$variableNodes(), variables, type$.AstNode_2), A.ShadowedModuleView__shadowedMap0(inner.get$functions(inner), functions, $T), A.ShadowedModuleView__shadowedMap0(inner.get$mixins(), mixins, $T), $T._eval$1("ShadowedModuleView0<0>")) : null;
+    },
+    ShadowedModuleView__shadowedMap0(map, blocklist, $V) {
+      var t1 = A.ShadowedModuleView__needsBlocklist0(map, blocklist);
+      return !t1 ? map : A.LimitedMapView$blocklist0(map, blocklist, type$.String, $V);
+    },
+    ShadowedModuleView__needsBlocklist0(map, blocklist) {
+      return map.get$isNotEmpty(map) && blocklist.any$1(0, map.get$containsKey());
+    },
+    ShadowedModuleView0: function ShadowedModuleView0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._shadowed_view0$_inner = t0;
+      _.variables = t1;
+      _.variableNodes = t2;
+      _.functions = t3;
+      _.mixins = t4;
+      _.$ti = t5;
+    },
+    SilentComment0: function SilentComment0(t0, t1) {
+      this.text = t0;
+      this.span = t1;
+    },
+    SimpleSelector0: function SimpleSelector0() {
+    },
+    SimpleSelector_isSuperselector_closure0: function SimpleSelector_isSuperselector_closure0(t0) {
+      this.$this = t0;
+    },
+    SimpleSelector_isSuperselector__closure0: function SimpleSelector_isSuperselector__closure0(t0) {
+      this.$this = t0;
+    },
+    SingleUnitSassNumber0: function SingleUnitSassNumber0(t0, t1, t2) {
+      var _ = this;
+      _._single_unit$_unit = t0;
+      _._number1$_value = t1;
+      _.hashCache = null;
+      _.asSlash = t2;
+    },
+    SingleUnitSassNumber__coerceToUnit_closure0: function SingleUnitSassNumber__coerceToUnit_closure0(t0, t1) {
+      this.$this = t0;
+      this.unit = t1;
+    },
+    SingleUnitSassNumber__coerceValueToUnit_closure0: function SingleUnitSassNumber__coerceValueToUnit_closure0(t0) {
+      this.$this = t0;
+    },
+    SingleUnitSassNumber_multiplyUnits_closure1: function SingleUnitSassNumber_multiplyUnits_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    SingleUnitSassNumber_multiplyUnits_closure2: function SingleUnitSassNumber_multiplyUnits_closure2(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    SourceMapBuffer0: function SourceMapBuffer0(t0, t1) {
+      var _ = this;
+      _._source_map_buffer0$_buffer = t0;
+      _._source_map_buffer0$_entries = t1;
+      _._source_map_buffer0$_column = _._source_map_buffer0$_line = 0;
+      _._source_map_buffer0$_inSpan = false;
+    },
+    SourceMapBuffer_buildSourceMap_closure0: function SourceMapBuffer_buildSourceMap_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.prefixLength = t1;
+    },
+    updateSourceSpanPrototype() {
+      var t3, t4, _i, t5,
+        span = A.SourceFile$fromString("", null).span$1(0, 0),
+        t1 = type$.SourceSpan,
+        t2 = type$.String;
+      for (t1 = [span, new A.MultiSpan0(span, "", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_empty(t1, t2), t1, t2)), new A.LazyFileSpan0(new A.updateSourceSpanPrototype_closure(span))], t3 = type$.JSClass, t4 = type$.Function, _i = 0; _i < 3; ++_i) {
+        t5 = t3._as(t1[_i].constructor);
+        A.LinkedHashMap_LinkedHashMap$_literal(["start", new A.updateSourceSpanPrototype_closure0(), "end", new A.updateSourceSpanPrototype_closure1(), "url", new A.updateSourceSpanPrototype_closure2(), "text", new A.updateSourceSpanPrototype_closure3(), "context", new A.updateSourceSpanPrototype_closure4()], t2, t4).forEach$1(0, A.JSClassExtension_get_defineGetter(t5));
+      }
+      t1 = t3._as(A.FileLocation$_(span.file, span._file$_start).constructor);
+      A.LinkedHashMap_LinkedHashMap$_literal(["line", new A.updateSourceSpanPrototype_closure5(), "column", new A.updateSourceSpanPrototype_closure6()], t2, t4).forEach$1(0, A.JSClassExtension_get_defineGetter(t1));
+    },
+    updateSourceSpanPrototype_closure: function updateSourceSpanPrototype_closure(t0) {
+      this.span = t0;
+    },
+    updateSourceSpanPrototype_closure0: function updateSourceSpanPrototype_closure0() {
+    },
+    updateSourceSpanPrototype_closure1: function updateSourceSpanPrototype_closure1() {
+    },
+    updateSourceSpanPrototype_closure2: function updateSourceSpanPrototype_closure2() {
+    },
+    updateSourceSpanPrototype_closure3: function updateSourceSpanPrototype_closure3() {
+    },
+    updateSourceSpanPrototype_closure4: function updateSourceSpanPrototype_closure4() {
+    },
+    updateSourceSpanPrototype_closure5: function updateSourceSpanPrototype_closure5() {
+    },
+    updateSourceSpanPrototype_closure6: function updateSourceSpanPrototype_closure6() {
+    },
+    StatementSearchVisitor0: function StatementSearchVisitor0() {
+    },
+    StatementSearchVisitor_visitIfRule_closure1: function StatementSearchVisitor_visitIfRule_closure1(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitIfRule__closure2: function StatementSearchVisitor_visitIfRule__closure2(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitIfRule_closure2: function StatementSearchVisitor_visitIfRule_closure2(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitIfRule__closure1: function StatementSearchVisitor_visitIfRule__closure1(t0) {
+      this.$this = t0;
+    },
+    StatementSearchVisitor_visitChildren_closure0: function StatementSearchVisitor_visitChildren_closure0(t0) {
+      this.$this = t0;
+    },
+    StaticImport0: function StaticImport0(t0, t1, t2) {
+      this.url = t0;
+      this.modifiers = t1;
+      this.span = t2;
+    },
+    StderrLogger0: function StderrLogger0(t0) {
+      this.color = t0;
+    },
+    StringExpression_quoteText0(text) {
+      var t1,
+        quote = A.StringExpression__bestQuote0(A._setArrayType([text], type$.JSArray_String)),
+        buffer = new A.StringBuffer("");
+      buffer._contents = "" + A.Primitives_stringFromCharCode(quote);
+      A.StringExpression__quoteInnerText0(text, quote, buffer, true);
+      t1 = A.Primitives_stringFromCharCode(quote);
+      t1 = buffer._contents += t1;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    StringExpression__quoteInnerText0(text, quote, buffer, $static) {
+      var t1, t2, i, _1_0, _0_0, t3, t4, t0;
+      for (t1 = text.length, t2 = t1 - 1, i = 0; i < t1; ++i) {
+        _1_0 = text.charCodeAt(i);
+        if (_1_0 === 10 || _1_0 === 13 || _1_0 === 12) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(97);
+          if (i !== t2) {
+            _0_0 = text.charCodeAt(i + 1);
+            if (!(_0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12))
+              if (!(_0_0 >= 48 && _0_0 <= 57))
+                if (!(_0_0 >= 97 && _0_0 <= 102))
+                  t3 = _0_0 >= 65 && _0_0 <= 70;
+                else
+                  t3 = true;
+              else
+                t3 = true;
+            else
+              t3 = true;
+            if (t3)
+              buffer.writeCharCode$1(32);
+          }
+          continue;
+        }
+        t3 = 92 === _1_0;
+        if (t3)
+          t4 = _1_0;
+        else
+          t4 = null;
+        if (!t3) {
+          t3 = _1_0 === quote;
+          if (t3)
+            t4 = _1_0;
+          t0 = t4;
+          t4 = t3;
+          t3 = t0;
+          if (!t4)
+            if (35 === _1_0)
+              if ($static)
+                if (i < t2) {
+                  t4 = text.charCodeAt(i + 1) === 123;
+                  if (t4)
+                    t3 = _1_0;
+                } else
+                  t4 = false;
+              else
+                t4 = false;
+            else
+              t4 = false;
+          else
+            t4 = true;
+        } else {
+          t3 = t4;
+          t4 = true;
+        }
+        if (t4) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(t3);
+          continue;
+        }
+        buffer.writeCharCode$1(_1_0);
+      }
+    },
+    StringExpression__bestQuote0(strings) {
+      var t1, t2, t3, containsDoubleQuote, t4, t5;
+      for (t1 = J.get$iterator$ax(strings), t2 = type$.CodeUnits, t3 = t2._eval$1("ListIterator<ListBase.E>"), t2 = t2._eval$1("ListBase.E"), containsDoubleQuote = false; t1.moveNext$0();)
+        for (t4 = new A.CodeUnits(t1.get$current(t1)), t4 = new A.ListIterator(t4, t4.get$length(0), t3); t4.moveNext$0();) {
+          t5 = t4.__internal$_current;
+          if (t5 == null)
+            t5 = t2._as(t5);
+          if (t5 === 39)
+            return 34;
+          if (t5 === 34)
+            containsDoubleQuote = true;
+        }
+      return containsDoubleQuote ? 39 : 34;
+    },
+    StringExpression0: function StringExpression0(t0, t1) {
+      this.text = t0;
+      this.hasQuotes = t1;
+    },
+    _codepointForIndex0(index, lengthInCodepoints, allowNegative) {
+      var result;
+      if (index === 0)
+        return 0;
+      if (index > 0)
+        return Math.min(index - 1, lengthInCodepoints);
+      result = lengthInCodepoints + index;
+      if (result < 0 && !allowNegative)
+        return 0;
+      return result;
+    },
+    _function6($name, $arguments, callback) {
+      return A.BuiltInCallable$function0($name, $arguments, callback, "sass:string");
+    },
+    module_closure10: function module_closure10() {
+    },
+    module__closure2: function module__closure2(t0) {
+      this.string = t0;
+    },
+    module__closure3: function module__closure3(t0) {
+      this.string = t0;
+    },
+    _unquote_closure0: function _unquote_closure0() {
+    },
+    _quote_closure0: function _quote_closure0() {
+    },
+    _length_closure1: function _length_closure1() {
+    },
+    _insert_closure0: function _insert_closure0() {
+    },
+    _index_closure1: function _index_closure1() {
+    },
+    _slice_closure0: function _slice_closure0() {
+    },
+    _toUpperCase_closure0: function _toUpperCase_closure0() {
+    },
+    _toLowerCase_closure0: function _toLowerCase_closure0() {
+    },
+    _uniqueId_closure0: function _uniqueId_closure0() {
+    },
+    stringClass_closure: function stringClass_closure() {
+    },
+    stringClass__closure: function stringClass__closure() {
+    },
+    stringClass__closure0: function stringClass__closure0() {
+    },
+    stringClass__closure1: function stringClass__closure1() {
+    },
+    stringClass__closure2: function stringClass__closure2() {
+    },
+    stringClass__closure3: function stringClass__closure3() {
+    },
+    _ConstructorOptions1: function _ConstructorOptions1() {
+    },
+    _NodeSassString: function _NodeSassString() {
+    },
+    legacyStringClass_closure: function legacyStringClass_closure() {
+    },
+    legacyStringClass_closure0: function legacyStringClass_closure0() {
+    },
+    legacyStringClass_closure1: function legacyStringClass_closure1() {
+    },
+    SassString$0(_text, quotes) {
+      return new A.SassString0(_text, quotes);
+    },
+    SassString0: function SassString0(t0, t1) {
+      var _ = this;
+      _._string0$_text = t0;
+      _._string0$_hasQuotes = t1;
+      _._string0$__SassString__sassLength_FI = $;
+      _._string0$_hashCache = null;
+    },
+    ModifiableCssStyleRule$0(_selector, span, fromPlainCss, originalSelector) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      return new A.ModifiableCssStyleRule0(_selector, originalSelector, span, fromPlainCss, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode_2), t1);
+    },
+    ModifiableCssStyleRule0: function ModifiableCssStyleRule0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._style_rule0$_selector = t0;
+      _.originalSelector = t1;
+      _.span = t2;
+      _.fromPlainCss = t3;
+      _.children = t4;
+      _._node$_children = t5;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    StyleRule$0(selector, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.StyleRule0(selector, span, t1, t2);
+    },
+    StyleRule0: function StyleRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.selector = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    CssStylesheet0: function CssStylesheet0(t0, t1) {
+      this.children = t0;
+      this.span = t1;
+    },
+    ModifiableCssStylesheet$0(span) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      return new A.ModifiableCssStylesheet0(span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode_2), t1);
+    },
+    ModifiableCssStylesheet0: function ModifiableCssStylesheet0(t0, t1, t2) {
+      var _ = this;
+      _.span = t0;
+      _.children = t1;
+      _._node$_children = t2;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    StylesheetParser0: function StylesheetParser0() {
+    },
+    StylesheetParser_parse_closure0: function StylesheetParser_parse_closure0(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_parse__closure1: function StylesheetParser_parse__closure1(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_parse__closure2: function StylesheetParser_parse__closure2() {
+    },
+    StylesheetParser_parseArgumentDeclaration_closure0: function StylesheetParser_parseArgumentDeclaration_closure0(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser__parseSingleProduction_closure0: function StylesheetParser__parseSingleProduction_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.production = t1;
+      this.T = t2;
+    },
+    StylesheetParser_parseSignature_closure: function StylesheetParser_parseSignature_closure(t0, t1) {
+      this.$this = t0;
+      this.requireParens = t1;
+    },
+    StylesheetParser__statement_closure0: function StylesheetParser__statement_closure0(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser_variableDeclarationWithoutNamespace_closure1: function StylesheetParser_variableDeclarationWithoutNamespace_closure1(t0, t1) {
+      this.$this = t0;
+      this.start = t1;
+    },
+    StylesheetParser_variableDeclarationWithoutNamespace_closure2: function StylesheetParser_variableDeclarationWithoutNamespace_closure2(t0) {
+      this.declaration = t0;
+    },
+    StylesheetParser__styleRule_closure0: function StylesheetParser__styleRule_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.wasInStyleRule = t2;
+      _.start = t3;
+    },
+    StylesheetParser__tryDeclarationChildren_closure0: function StylesheetParser__tryDeclarationChildren_closure0(t0, t1) {
+      this.name = t0;
+      this.value = t1;
+    },
+    StylesheetParser__atRootRule_closure1: function StylesheetParser__atRootRule_closure1(t0) {
+      this.query = t0;
+    },
+    StylesheetParser__atRootRule_closure2: function StylesheetParser__atRootRule_closure2() {
+    },
+    StylesheetParser__eachRule_closure0: function StylesheetParser__eachRule_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.wasInControlDirective = t1;
+      _.variables = t2;
+      _.list = t3;
+    },
+    StylesheetParser__functionRule_closure0: function StylesheetParser__functionRule_closure0(t0, t1, t2) {
+      this.name = t0;
+      this.$arguments = t1;
+      this.precedingComment = t2;
+    },
+    StylesheetParser__forRule_closure1: function StylesheetParser__forRule_closure1(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    StylesheetParser__forRule_closure2: function StylesheetParser__forRule_closure2(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.wasInControlDirective = t2;
+      _.variable = t3;
+      _.from = t4;
+      _.to = t5;
+    },
+    StylesheetParser__memberList_closure0: function StylesheetParser__memberList_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.variables = t1;
+      this.identifiers = t2;
+    },
+    StylesheetParser__includeRule_closure0: function StylesheetParser__includeRule_closure0(t0) {
+      this.contentArguments_ = t0;
+    },
+    StylesheetParser_mediaRule_closure0: function StylesheetParser_mediaRule_closure0(t0) {
+      this.query = t0;
+    },
+    StylesheetParser__mixinRule_closure0: function StylesheetParser__mixinRule_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.$this = t0;
+      _.name = t1;
+      _.$arguments = t2;
+      _.precedingComment = t3;
+    },
+    StylesheetParser_mozDocumentRule_closure0: function StylesheetParser_mozDocumentRule_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.name = t2;
+      _.value = t3;
+    },
+    StylesheetParser_supportsRule_closure0: function StylesheetParser_supportsRule_closure0(t0) {
+      this.condition = t0;
+    },
+    StylesheetParser__whileRule_closure0: function StylesheetParser__whileRule_closure0(t0, t1, t2) {
+      this.$this = t0;
+      this.wasInControlDirective = t1;
+      this.condition = t2;
+    },
+    StylesheetParser_unknownAtRule_closure0: function StylesheetParser_unknownAtRule_closure0(t0, t1) {
+      this._box_0 = t0;
+      this.name = t1;
+    },
+    StylesheetParser__expression_resetState0: function StylesheetParser__expression_resetState0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.start = t2;
+    },
+    StylesheetParser__expression_resolveOneOperation0: function StylesheetParser__expression_resolveOneOperation0(t0, t1) {
+      this._box_0 = t0;
+      this.$this = t1;
+    },
+    StylesheetParser__expression_resolveOperations0: function StylesheetParser__expression_resolveOperations0(t0, t1) {
+      this._box_0 = t0;
+      this.resolveOneOperation = t1;
+    },
+    StylesheetParser__expression_addSingleExpression0: function StylesheetParser__expression_addSingleExpression0(t0, t1, t2, t3) {
+      var _ = this;
+      _._box_0 = t0;
+      _.$this = t1;
+      _.resetState = t2;
+      _.resolveOperations = t3;
+    },
+    StylesheetParser__expression_addOperator0: function StylesheetParser__expression_addOperator0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.resolveOneOperation = t2;
+    },
+    StylesheetParser__expression_resolveSpaceExpressions0: function StylesheetParser__expression_resolveSpaceExpressions0(t0, t1, t2) {
+      this._box_0 = t0;
+      this.$this = t1;
+      this.resolveOperations = t2;
+    },
+    StylesheetParser_expressionUntilComma_closure0: function StylesheetParser_expressionUntilComma_closure0(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser__isHexColor_closure0: function StylesheetParser__isHexColor_closure0() {
+    },
+    StylesheetParser__unicodeRange_closure1: function StylesheetParser__unicodeRange_closure1() {
+    },
+    StylesheetParser__unicodeRange_closure2: function StylesheetParser__unicodeRange_closure2() {
+    },
+    StylesheetParser_namespacedExpression_closure0: function StylesheetParser_namespacedExpression_closure0(t0, t1) {
+      this.$this = t0;
+      this.start = t1;
+    },
+    StylesheetParser_trySpecialFunction_closure0: function StylesheetParser_trySpecialFunction_closure0() {
+    },
+    StylesheetParser__expressionUntilComparison_closure0: function StylesheetParser__expressionUntilComparison_closure0(t0) {
+      this.$this = t0;
+    },
+    StylesheetParser__publicIdentifier_closure0: function StylesheetParser__publicIdentifier_closure0(t0, t1) {
+      this.$this = t0;
+      this.start = t1;
+    },
+    Stylesheet$internal0(children, span, plainCss) {
+      var t1 = A._setArrayType([], type$.JSArray_UseRule_2),
+        t2 = A._setArrayType([], type$.JSArray_ForwardRule_2),
+        t3 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t4 = B.JSArray_methods.any$1(t3, new A.ParentStatement_closure0());
+      t1 = new A.Stylesheet0(span, plainCss, t1, t2, t3, t4);
+      t1.Stylesheet$internal$3$plainCss0(children, span, plainCss);
+      return t1;
+    },
+    Stylesheet_Stylesheet$parse0(contents, syntax, logger, url) {
+      var error, stackTrace, url0, t1, exception, t2;
+      try {
+        switch (syntax) {
+          case B.Syntax_Sass_sass0:
+            t1 = A.SpanScanner$(contents, url);
+            t1 = new A.SassParser0(A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.VariableDeclaration_2), t1, logger, null).parse$0();
+            return t1;
+          case B.Syntax_SCSS_scss0:
+            t1 = A.ScssParser$0(contents, logger, url).parse$0();
+            return t1;
+          case B.Syntax_CSS_css0:
+            t1 = A.SpanScanner$(contents, url);
+            t1 = new A.CssParser0(A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.VariableDeclaration_2), t1, logger, null).parse$0();
+            return t1;
+          default:
+            t1 = A.ArgumentError$("Unknown syntax " + syntax.toString$0(0) + ".", null);
+            throw A.wrapException(t1);
+        }
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error;
+          t2 = J.getInterceptor$z(t1);
+          t1 = A.SourceSpanException.prototype.get$span.call(t2, t1);
+          url0 = t1.get$sourceUrl(t1);
+          if (url0 == null || J.toString$0$(url0) === "stdin")
+            throw exception;
+          t1 = type$.Uri;
+          throw A.wrapException(A.throwWithTrace0(error.withLoadedUrls$1(A.Set_Set$unmodifiable(A.LinkedHashSet_LinkedHashSet$_literal([url0], t1), t1)), error, stackTrace));
+        } else
+          throw exception;
+      }
+    },
+    Stylesheet0: function Stylesheet0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.span = t0;
+      _.plainCss = t1;
+      _._stylesheet1$_uses = t2;
+      _._stylesheet1$_forwards = t3;
+      _.children = t4;
+      _.hasDeclarations = t5;
+    },
+    SupportsExpression0: function SupportsExpression0(t0) {
+      this.condition = t0;
+    },
+    ModifiableCssSupportsRule$0(condition, span) {
+      var t1 = A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      return new A.ModifiableCssSupportsRule0(condition, span, new A.UnmodifiableListView(t1, type$.UnmodifiableListView_ModifiableCssNode_2), t1);
+    },
+    ModifiableCssSupportsRule0: function ModifiableCssSupportsRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.condition = t0;
+      _.span = t1;
+      _.children = t2;
+      _._node$_children = t3;
+      _._node$_indexInParent = _._node$_parent = null;
+      _.isGroupEnd = false;
+    },
+    SupportsRule$0(condition, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.SupportsRule0(condition, span, t1, t2);
+    },
+    SupportsRule0: function SupportsRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.condition = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    JSToDartImporter: function JSToDartImporter(t0, t1, t2) {
+      this._sync$_canonicalize = t0;
+      this._sync$_load = t1;
+      this._sync$_nonCanonicalSchemes = t2;
+    },
+    JSToDartImporter_canonicalize_closure: function JSToDartImporter_canonicalize_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    JSToDartImporter_load_closure: function JSToDartImporter_load_closure(t0, t1) {
+      this.$this = t0;
+      this.url = t1;
+    },
+    Syntax_forPath0(path) {
+      var t1,
+        _0_0 = A.ParsedPath_ParsedPath$parse(path, $.$get$context().style)._splitExtension$1(1)[1];
+      $label0$0: {
+        if (".sass" === _0_0) {
+          t1 = B.Syntax_Sass_sass0;
+          break $label0$0;
+        }
+        if (".css" === _0_0) {
+          t1 = B.Syntax_CSS_css0;
+          break $label0$0;
+        }
+        t1 = B.Syntax_SCSS_scss0;
+        break $label0$0;
+      }
+      return t1;
+    },
+    Syntax0: function Syntax0(t0, t1) {
+      this._syntax0$_name = t0;
+      this._name = t1;
+    },
+    TypeSelector0: function TypeSelector0(t0, t1) {
+      this.name = t0;
+      this.span = t1;
+    },
+    Types: function Types() {
+    },
+    UnaryOperationExpression0: function UnaryOperationExpression0(t0, t1, t2) {
+      this.operator = t0;
+      this.operand = t1;
+      this.span = t2;
+    },
+    UnaryOperator0: function UnaryOperator0(t0, t1, t2) {
+      this.name = t0;
+      this.operator = t1;
+      this._name = t2;
+    },
+    UnitlessSassNumber0: function UnitlessSassNumber0(t0, t1) {
+      this._number1$_value = t0;
+      this.hashCache = null;
+      this.asSlash = t1;
+    },
+    UniversalSelector0: function UniversalSelector0(t0, t1) {
+      this.namespace = t0;
+      this.span = t1;
+    },
+    UnprefixedMapView0: function UnprefixedMapView0(t0, t1, t2) {
+      this._unprefixed_map_view0$_map = t0;
+      this._unprefixed_map_view0$_prefix = t1;
+      this.$ti = t2;
+    },
+    _UnprefixedKeys0: function _UnprefixedKeys0(t0) {
+      this._unprefixed_map_view0$_view = t0;
+    },
+    _UnprefixedKeys_iterator_closure1: function _UnprefixedKeys_iterator_closure1(t0) {
+      this.$this = t0;
+    },
+    _UnprefixedKeys_iterator_closure2: function _UnprefixedKeys_iterator_closure2(t0) {
+      this.$this = t0;
+    },
+    JSUrl0: function JSUrl0() {
+    },
+    UseRule0: function UseRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.url = t0;
+      _.namespace = t1;
+      _.configuration = t2;
+      _.span = t3;
+    },
+    UserDefinedCallable0: function UserDefinedCallable0(t0, t1, t2, t3) {
+      var _ = this;
+      _.declaration = t0;
+      _.environment = t1;
+      _.inDependency = t2;
+      _.$ti = t3;
+    },
+    fromImport0() {
+      var t1 = type$.nullable_CanonicalizeContext_2._as($.Zone__current.$index(0, B.Symbol__canonicalizeContext));
+      t1 = t1 == null ? null : t1._canonicalize_context$_fromImport;
+      return t1 === true;
+    },
+    canonicalizeContext0() {
+      var t1,
+        _0_0 = $.Zone__current.$index(0, B.Symbol__canonicalizeContext);
+      $label0$0: {
+        if (_0_0 == null)
+          A.throwExpression(A.StateError$(string$.canoni));
+        if (_0_0 instanceof A.CanonicalizeContext0) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.StateError$(string$.Unexpe + A.S(_0_0) + "."));
+      }
+      return t1;
+    },
+    inImportRule(callback, $T) {
+      var t1,
+        _0_0 = $.Zone__current.$index(0, B.Symbol__canonicalizeContext);
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = type$.nullable_Object;
+          t1 = A.runZoned(callback, A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__canonicalizeContext, new A.CanonicalizeContext0(true, null)], t1, t1), $T);
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.CanonicalizeContext0) {
+          t1 = _0_0.withFromImport$2(true, callback);
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.StateError$(string$.Unexpe + A.S(_0_0) + "."));
+      }
+      return t1;
+    },
+    resolveImportPath0(path) {
+      var t1,
+        extension = A.ParsedPath_ParsedPath$parse(path, $.$get$context().style)._splitExtension$1(1)[1];
+      if (extension === ".sass" || extension === ".scss" || extension === ".css") {
+        t1 = A.fromImport0() ? new A.resolveImportPath_closure1(path, extension).call$0() : null;
+        return t1 == null ? A._exactlyOne0(A._tryPath0(path)) : t1;
+      }
+      t1 = A.fromImport0() ? new A.resolveImportPath_closure2(path).call$0() : null;
+      if (t1 == null)
+        t1 = A._exactlyOne0(A._tryPathWithExtensions0(path));
+      return t1 == null ? A._tryPathAsDirectory0(path) : t1;
+    },
+    _tryPathWithExtensions0(path) {
+      var result = A._tryPath0(path + ".sass");
+      B.JSArray_methods.addAll$1(result, A._tryPath0(path + ".scss"));
+      return result.length !== 0 ? result : A._tryPath0(path + ".css");
+    },
+    _tryPath0(path) {
+      var t1 = $.$get$context(),
+        partial = A.join(t1.dirname$1(path), "_" + A.ParsedPath_ParsedPath$parse(path, t1.style).get$basename(), null);
+      t1 = A._setArrayType([], type$.JSArray_String);
+      if (A.fileExists0(partial))
+        t1.push(partial);
+      if (A.fileExists0(path))
+        t1.push(path);
+      return t1;
+    },
+    _tryPathAsDirectory0(path) {
+      var t1;
+      if (!A.dirExists0(path))
+        return null;
+      t1 = A.fromImport0() ? new A._tryPathAsDirectory_closure0(path).call$0() : null;
+      return t1 == null ? A._exactlyOne0(A._tryPathWithExtensions0(A.join(path, "index", null))) : t1;
+    },
+    _exactlyOne0(paths) {
+      var _0_1, t1, path;
+      $label0$0: {
+        _0_1 = paths.length;
+        if (_0_1 <= 0) {
+          t1 = null;
+          break $label0$0;
+        }
+        if (_0_1 === 1) {
+          path = paths[0];
+          t1 = path;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(string$.It_s_n + B.JSArray_methods.map$1$1(paths, new A._exactlyOne_closure0(), type$.String).join$1(0, "\n"));
+      }
+      return t1;
+    },
+    resolveImportPath_closure1: function resolveImportPath_closure1(t0, t1) {
+      this.path = t0;
+      this.extension = t1;
+    },
+    resolveImportPath_closure2: function resolveImportPath_closure2(t0) {
+      this.path = t0;
+    },
+    _tryPathAsDirectory_closure0: function _tryPathAsDirectory_closure0(t0) {
+      this.path = t0;
+    },
+    _exactlyOne_closure0: function _exactlyOne_closure0() {
+    },
+    jsThrow(error) {
+      return type$.Never._as($.$get$_jsThrow().call$1(error));
+    },
+    attachJsStack(error, trace) {
+      var traceString = trace.toString$0(0),
+        firstRealLine = B.JSString_methods.indexOf$1(traceString, "\n    at");
+      if (firstRealLine !== -1)
+        traceString = B.JSString_methods.substring$1(traceString, firstRealLine + 1);
+      error.stack = "Error: " + A.S(J.get$message$x(error)) + "\n" + traceString;
+    },
+    jsForEach(object, callback) {
+      var t1, t2;
+      for (t1 = J.get$iterator$ax(self.Object.keys(object)); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        callback.call$2(t2, object[t2]);
+      }
+    },
+    jsType(value) {
+      var typeOf = A._asString(new self.Function("value", "return typeof value").call$1(value));
+      return typeOf !== "object" ? typeOf : A._asString(new self.Function("value", '    if (value && value.constructor && value.constructor.name) {\n      return value.constructor.name;\n    }\n    return "object";\n  ').call$1(value));
+    },
+    defineGetter(object, $name, get, value) {
+      self.Object.defineProperty(object, $name, get == null ? {value: value, enumerable: false} : {get: A.allowInteropCaptureThis(get), enumerable: false});
+    },
+    allowInteropNamed($name, $function) {
+      $function = A.allowInterop($function);
+      A.defineGetter($function, "name", null, $name);
+      A._hideDartProperties($function);
+      return $function;
+    },
+    allowInteropCaptureThisNamed($name, $function) {
+      $function = A.allowInteropCaptureThis($function);
+      A.defineGetter($function, "name", null, $name);
+      A._hideDartProperties($function);
+      return $function;
+    },
+    _hideDartProperties(object) {
+      var t1, t2, t3, t4;
+      for (t1 = J.cast$1$0$ax(self.Object.getOwnPropertyNames(object), type$.String), t2 = A._instanceType(t1), t1 = new A.ListIterator(t1, t1.get$length(t1), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (B.JSString_methods.startsWith$1(t3, "_")) {
+          t4 = {value: object[t3], enumerable: false};
+          self.Object.defineProperty(object, t3, t4);
+        }
+      }
+    },
+    futureToPromise0(future) {
+      return new self.Promise(A.allowInterop(new A.futureToPromise_closure0(future)));
+    },
+    jsToDartUrl(url) {
+      return A.Uri_parse(J.toString$0$(url));
+    },
+    dartToJSUrl(url) {
+      return new self.URL(url.toString$0(0));
+    },
+    toJSArray(iterable) {
+      var t1, t2,
+        array = new self.Array();
+      for (t1 = J.get$iterator$ax(iterable), t2 = J.getInterceptor$x(array); t1.moveNext$0();)
+        t2.push$1(array, t1.get$current(t1));
+      return array;
+    },
+    objectToMap(object) {
+      var map = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.nullable_Object);
+      A.jsForEach(object, new A.objectToMap_closure(map));
+      return map;
+    },
+    jsToDartSeparator(separator) {
+      var t1;
+      $label0$0: {
+        if (" " === separator) {
+          t1 = B.ListSeparator_nbm0;
+          break $label0$0;
+        }
+        if ("," === separator) {
+          t1 = B.ListSeparator_ECn0;
+          break $label0$0;
+        }
+        if ("/" === separator) {
+          t1 = B.ListSeparator_cQA0;
+          break $label0$0;
+        }
+        if (separator == null) {
+          t1 = B.ListSeparator_undecided_null_undecided0;
+          break $label0$0;
+        }
+        t1 = A.jsThrow(new self.Error('Unknown separator "' + separator + '".'));
+      }
+      return t1;
+    },
+    parseSyntax(syntax) {
+      var t1;
+      $label0$0: {
+        if (syntax == null || "scss" === syntax) {
+          t1 = B.Syntax_SCSS_scss0;
+          break $label0$0;
+        }
+        if ("indented" === syntax) {
+          t1 = B.Syntax_Sass_sass0;
+          break $label0$0;
+        }
+        if ("css" === syntax) {
+          t1 = B.Syntax_CSS_css0;
+          break $label0$0;
+        }
+        t1 = A.jsThrow(new self.Error('Unknown syntax "' + A.S(syntax) + '".'));
+      }
+      return t1;
+    },
+    entrypointFilename() {
+      var _1_0, _1_5_isSet, _1_5, t2, path,
+        t1 = self.require.main,
+        _0_0 = t1 == null ? null : J.get$filename$x(t1);
+      if (_0_0 != null)
+        return _0_0;
+      else {
+        _1_0 = J.get$argv$x(self.process);
+        t1 = J.getInterceptor$asx(_1_0);
+        _1_5_isSet = t1.get$length(_1_0) >= 2;
+        if (_1_5_isSet) {
+          _1_5 = t1.$index(_1_0, 1);
+          t2 = typeof _1_5 == "string";
+        } else {
+          _1_5 = null;
+          t2 = false;
+        }
+        if (t2) {
+          path = A._asString(_1_5_isSet ? _1_5 : t1.$index(_1_0, 1));
+          return J.resolve$1$x(J.createRequire$1$x(self.nodeModule, path), path);
+        } else
+          return null;
+      }
+    },
+    _PropertyDescriptor0: function _PropertyDescriptor0() {
+    },
+    futureToPromise_closure0: function futureToPromise_closure0(t0) {
+      this.future = t0;
+    },
+    futureToPromise__closure0: function futureToPromise__closure0(t0) {
+      this.resolve = t0;
+    },
+    futureToPromise__closure1: function futureToPromise__closure1(t0) {
+      this.reject = t0;
+    },
+    objectToMap_closure: function objectToMap_closure(t0) {
+      this.map = t0;
+    },
+    _RequireMain0: function _RequireMain0() {
+    },
+    toSentence0(iter, conjunction) {
+      if (iter.get$length(iter) === 1)
+        return J.toString$0$(iter.get$first(iter));
+      return A.IterableExtension_get_exceptLast0(iter).join$1(0, ", ") + (" " + conjunction + " " + A.S(iter.get$last(iter)));
+    },
+    indent0(string, indentation) {
+      return new A.MappedListIterable(A._setArrayType(string.split("\n"), type$.JSArray_String), new A.indent_closure0(indentation), type$.MappedListIterable_String_String).join$1(0, "\n");
+    },
+    pluralize0($name, number, plural) {
+      if (number === 1)
+        return $name;
+      if (plural != null)
+        return plural;
+      return $name + "s";
+    },
+    trimAscii0(string, excludeEscape) {
+      var t1,
+        start = A._firstNonWhitespace0(string);
+      if (start == null)
+        t1 = "";
+      else {
+        t1 = A._lastNonWhitespace0(string, true);
+        t1.toString;
+        t1 = B.JSString_methods.substring$2(string, start, t1 + 1);
+      }
+      return t1;
+    },
+    trimAsciiRight0(string, excludeEscape) {
+      var end = A._lastNonWhitespace0(string, excludeEscape);
+      return end == null ? "" : B.JSString_methods.substring$2(string, 0, end + 1);
+    },
+    _firstNonWhitespace0(string) {
+      var t1, i, t2;
+      for (t1 = string.length, i = 0; i < t1; ++i) {
+        t2 = string.charCodeAt(i);
+        if (!(t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12))
+          return i;
+      }
+      return null;
+    },
+    _lastNonWhitespace0(string, excludeEscape) {
+      var i, i0, codeUnit;
+      for (i = string.length - 1, i0 = i; i0 >= 0; --i0) {
+        codeUnit = string.charCodeAt(i0);
+        if (!(codeUnit === 32 || codeUnit === 9 || codeUnit === 10 || codeUnit === 13 || codeUnit === 12))
+          if (excludeEscape && i0 !== 0 && i0 !== i && codeUnit === 92)
+            return i0 + 1;
+          else
+            return i0;
+      }
+      return null;
+    },
+    isPublic0(member) {
+      var start = member.charCodeAt(0);
+      return start !== 45 && start !== 95;
+    },
+    flattenVertically0(iterable, $T) {
+      var result,
+        t1 = iterable.$ti._eval$1("@<ListIterable.E>")._bind$1($T._eval$1("QueueList<0>"))._eval$1("MappedListIterable<1,2>"),
+        queues = A.List_List$of(new A.MappedListIterable(iterable, new A.flattenVertically_closure1($T), t1), true, t1._eval$1("ListIterable.E"));
+      if (queues.length === 1)
+        return B.JSArray_methods.get$first(queues);
+      result = A._setArrayType([], $T._eval$1("JSArray<0>"));
+      for (; queues.length !== 0;) {
+        if (!!queues.fixed$length)
+          A.throwExpression(A.UnsupportedError$("removeWhere"));
+        B.JSArray_methods._removeWhere$2(queues, new A.flattenVertically_closure2(result, $T), true);
+      }
+      return result;
+    },
+    codepointIndexToCodeUnitIndex0(string, codepointIndex) {
+      var codeUnitIndex, i, codeUnitIndex0;
+      for (codeUnitIndex = 0, i = 0; i < codepointIndex; ++i) {
+        codeUnitIndex0 = codeUnitIndex + 1;
+        codeUnitIndex = string.charCodeAt(codeUnitIndex) >>> 10 === 54 ? codeUnitIndex0 + 1 : codeUnitIndex0;
+      }
+      return codeUnitIndex;
+    },
+    codeUnitIndexToCodepointIndex0(string, codeUnitIndex) {
+      var codepointIndex, i;
+      for (codepointIndex = 0, i = 0; i < codeUnitIndex; i = (string.charCodeAt(i) >>> 10 === 54 ? i + 1 : i) + 1)
+        ++codepointIndex;
+      return codepointIndex;
+    },
+    frameForSpan0(span, member, url) {
+      var t2, t3,
+        t1 = url == null ? span.get$sourceUrl(span) : url;
+      if (t1 == null)
+        t1 = $.$get$_noSourceUrl0();
+      t2 = span.get$start(span);
+      t2 = t2.file.getLine$1(t2.offset);
+      t3 = span.get$start(span);
+      return new A.Frame(t1, t2 + 1, t3.file.getColumn$1(t3.offset) + 1, member);
+    },
+    declarationName0(span) {
+      var text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(span.file._decodedChars, span._file$_start, span._end), 0, null);
+      return A.trimAsciiRight0(B.JSString_methods.substring$2(text, 0, B.JSString_methods.indexOf$1(text, ":")), false);
+    },
+    unvendor0($name) {
+      var i,
+        t1 = $name.length;
+      if (t1 < 2)
+        return $name;
+      if ($name.charCodeAt(0) !== 45)
+        return $name;
+      if ($name.charCodeAt(1) === 45)
+        return $name;
+      for (i = 2; i < t1; ++i)
+        if ($name.charCodeAt(i) === 45)
+          return B.JSString_methods.substring$1($name, i + 1);
+      return $name;
+    },
+    equalsIgnoreCase0(string1, string2) {
+      var t1, i;
+      if (string1 === string2)
+        return true;
+      if (string1 == null)
+        return false;
+      t1 = string1.length;
+      if (t1 !== string2.length)
+        return false;
+      for (i = 0; i < t1; ++i)
+        if (!A.characterEqualsIgnoreCase0(string1.charCodeAt(i), string2.charCodeAt(i)))
+          return false;
+      return true;
+    },
+    startsWithIgnoreCase0(string, prefix) {
+      var i,
+        t1 = prefix.length;
+      if (string.length < t1)
+        return false;
+      for (i = 0; i < t1; ++i)
+        if (!A.characterEqualsIgnoreCase0(string.charCodeAt(i), prefix.charCodeAt(i)))
+          return false;
+      return true;
+    },
+    mapInPlace0(list, $function) {
+      var i;
+      for (i = 0; i < list.length; ++i)
+        list[i] = $function.call$1(list[i]);
+    },
+    longestCommonSubsequence0(list1, list2, select, $T) {
+      var t1, _i, selections, i, i0, j, selection, j0,
+        _length = list1.get$length(0) + 1,
+        lengths = J.JSArray_JSArray$allocateFixed(_length, type$.List_int);
+      for (t1 = type$.int, _i = 0; _i < _length; ++_i)
+        lengths[_i] = A.List_List$filled(((list2._queue_list$_tail - list2._queue_list$_head & J.get$length$asx(list2._queue_list$_table) - 1) >>> 0) + 1, 0, false, t1);
+      _length = list1.get$length(0);
+      selections = J.JSArray_JSArray$allocateFixed(_length, $T._eval$1("List<0?>"));
+      for (t1 = $T._eval$1("0?"), _i = 0; _i < _length; ++_i)
+        selections[_i] = A.List_List$filled((list2._queue_list$_tail - list2._queue_list$_head & J.get$length$asx(list2._queue_list$_table) - 1) >>> 0, null, false, t1);
+      for (i = 0; i < (list1._queue_list$_tail - list1._queue_list$_head & J.get$length$asx(list1._queue_list$_table) - 1) >>> 0; i = i0)
+        for (i0 = i + 1, j = 0; j < (list2._queue_list$_tail - list2._queue_list$_head & J.get$length$asx(list2._queue_list$_table) - 1) >>> 0; j = j0) {
+          selection = select.call$2(list1.$index(0, i), list2.$index(0, j));
+          selections[i][j] = selection;
+          t1 = lengths[i0];
+          j0 = j + 1;
+          t1[j0] = selection == null ? Math.max(t1[j], lengths[i][j0]) : lengths[i][j] + 1;
+        }
+      return new A.longestCommonSubsequence_backtrack0(selections, lengths, $T).call$2(list1.get$length(0) - 1, list2.get$length(0) - 1);
+    },
+    removeFirstWhere0(list, test, orElse) {
+      var i;
+      for (i = 0; i < list.length; ++i) {
+        if (!test.call$1(list[i]))
+          continue;
+        B.JSArray_methods.removeAt$1(list, i);
+        return;
+      }
+      orElse.call$0();
+    },
+    mapAddAll20(destination, source, K1, K2, $V) {
+      source.forEach$1(0, new A.mapAddAll2_closure0(destination, K1, K2, $V));
+    },
+    setAll0(map, keys, value) {
+      var t1;
+      for (t1 = J.get$iterator$ax(keys); t1.moveNext$0();)
+        map.$indexSet(0, t1.get$current(t1), value);
+    },
+    rotateSlice0(list, start, end) {
+      var i, next,
+        element = list.$index(0, end - 1);
+      for (i = start; i < end; ++i, element = next) {
+        next = list.$index(0, i);
+        list.$indexSet(0, i, element);
+      }
+    },
+    mapAsync0(iterable, callback, $E, $F) {
+      return A.mapAsync$body0(iterable, callback, $E, $F, $F._eval$1("Iterable<0>"));
+    },
+    mapAsync$body0(iterable, callback, $E, $F, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, t2, _i, t1, $async$temp1;
+      var $async$mapAsync0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = A._setArrayType([], $F._eval$1("JSArray<0>"));
+              t2 = iterable.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$temp1 = t1;
+              $async$goto = 6;
+              return A._asyncAwait(callback.call$1(iterable[_i]), $async$mapAsync0);
+            case 6:
+              // returning from await.
+              $async$temp1.push($async$result);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$mapAsync0, $async$completer);
+    },
+    putIfAbsentAsync0(map, key, ifAbsent, $K, $V) {
+      return A.putIfAbsentAsync$body0(map, key, ifAbsent, $K, $V, $V);
+    },
+    putIfAbsentAsync$body0(map, key, ifAbsent, $K, $V, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, t1, value;
+      var $async$putIfAbsentAsync0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (map.containsKey$1(key)) {
+                t1 = map.$index(0, key);
+                $async$returnValue = t1 == null ? $V._as(t1) : t1;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 3;
+              return A._asyncAwait(ifAbsent.call$0(), $async$putIfAbsentAsync0);
+            case 3:
+              // returning from await.
+              value = $async$result;
+              map.$indexSet(0, key, value);
+              $async$returnValue = value;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$putIfAbsentAsync0, $async$completer);
+    },
+    copyMapOfMap0(map, K1, K2, $V) {
+      var t3, key, child,
+        t1 = K2._eval$1("@<0>")._bind$1($V)._eval$1("Map<1,2>"),
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(K1, t1);
+      for (t1 = A.MapExtensions_get_pairs0(map, K1, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        key = t3._0;
+        child = t3._1;
+        t3 = A.LinkedHashMap_LinkedHashMap(null, null, null, K2, $V);
+        t3.addAll$1(0, child);
+        t2.$indexSet(0, key, t3);
+      }
+      return t2;
+    },
+    copyMapOfList0(map, $K, $E) {
+      var t3,
+        t1 = $E._eval$1("List<0>"),
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty($K, t1);
+      for (t1 = A.MapExtensions_get_pairs0(map, $K, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        t2.$indexSet(0, t3._0, J.toList$0$ax(t3._1));
+      }
+      return t2;
+    },
+    consumeEscapedCharacter0(scanner) {
+      var _1_0, value, i, next, t1;
+      scanner.expectChar$1(92);
+      _1_0 = scanner.peekChar$0();
+      if (_1_0 == null)
+        return 65533;
+      if (_1_0 === 10 || _1_0 === 13 || _1_0 === 12)
+        scanner.error$1(0, "Expected escape sequence.");
+      if (A.CharacterExtension_get_isHex0(_1_0)) {
+        for (value = 0, i = 0; i < 6; ++i) {
+          next = scanner.peekChar$0();
+          if (next != null) {
+            if (!(next >= 48 && next <= 57))
+              if (!(next >= 97 && next <= 102))
+                t1 = next >= 65 && next <= 70;
+              else
+                t1 = true;
+            else
+              t1 = true;
+            t1 = !t1;
+          } else
+            t1 = true;
+          if (t1)
+            break;
+          value = (value << 4 >>> 0) + A.asHex0(scanner.readChar$0());
+        }
+        t1 = scanner.peekChar$0();
+        if (t1 === 32 || t1 === 9 || t1 === 10 || t1 === 13 || t1 === 12)
+          scanner.readChar$0();
+        $label0$1: {
+          if (0 !== value)
+            t1 = value >= 55296 && value <= 57343 || value >= 1114111;
+          else
+            t1 = true;
+          if (t1) {
+            t1 = 65533;
+            break $label0$1;
+          }
+          t1 = value;
+          break $label0$1;
+        }
+        return t1;
+      }
+      return scanner.readChar$0();
+    },
+    throwWithTrace0(error, originalError, trace) {
+      var t1 = A.getTrace0(originalError);
+      A.attachTrace0(error, t1 == null ? trace : t1);
+      throw A.wrapException(error);
+    },
+    attachTrace0(error, trace) {
+      var t1;
+      if (typeof error == "string" || typeof error == "number" || A._isBool(error))
+        return;
+      if (trace.toString$0(0).length === 0)
+        return;
+      t1 = $.$get$_traces0();
+      A.Expando__checkType(error);
+      if (t1._jsWeakMap.get(error) == null)
+        t1.$indexSet(0, error, trace);
+    },
+    getTrace0(error) {
+      var t1;
+      if (typeof error == "string" || typeof error == "number" || A._isBool(error))
+        t1 = null;
+      else {
+        t1 = $.$get$_traces0();
+        A.Expando__checkType(error);
+        t1 = t1._jsWeakMap.get(error);
+      }
+      return t1;
+    },
+    parseSignature(signature, requireParens) {
+      var error, stackTrace, t1, exception, t2;
+      try {
+        t1 = A.ScssParser$0(signature, null, null).parseSignature$1$requireParens(requireParens);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassFormatException_2._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error._span_exception$_message;
+          t2 = J.get$span$z(error);
+          A.throwWithTrace0(new A.SassFormatException0(B.Set_empty, 'Invalid signature "' + signature + '": ' + t1, t2), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    indent_closure0: function indent_closure0(t0) {
+      this.indentation = t0;
+    },
+    flattenVertically_closure1: function flattenVertically_closure1(t0) {
+      this.T = t0;
+    },
+    flattenVertically_closure2: function flattenVertically_closure2(t0, t1) {
+      this.result = t0;
+      this.T = t1;
+    },
+    longestCommonSubsequence_backtrack0: function longestCommonSubsequence_backtrack0(t0, t1, t2) {
+      this.selections = t0;
+      this.lengths = t1;
+      this.T = t2;
+    },
+    mapAddAll2_closure0: function mapAddAll2_closure0(t0, t1, t2, t3) {
+      var _ = this;
+      _.destination = t0;
+      _.K1 = t1;
+      _.K2 = t2;
+      _.V = t3;
+    },
+    CssValue0: function CssValue0(t0, t1, t2) {
+      this.value = t0;
+      this.span = t1;
+      this.$ti = t2;
+    },
+    ValueExpression0: function ValueExpression0(t0, t1) {
+      this.value = t0;
+      this.span = t1;
+    },
+    valueClass_closure: function valueClass_closure() {
+    },
+    valueClass__closure: function valueClass__closure() {
+    },
+    valueClass__closure0: function valueClass__closure0() {
+    },
+    valueClass__closure1: function valueClass__closure1() {
+    },
+    valueClass__closure2: function valueClass__closure2() {
+    },
+    valueClass__closure3: function valueClass__closure3() {
+    },
+    valueClass__closure4: function valueClass__closure4() {
+    },
+    valueClass__closure5: function valueClass__closure5() {
+    },
+    valueClass__closure6: function valueClass__closure6() {
+    },
+    valueClass__closure7: function valueClass__closure7() {
+    },
+    valueClass__closure8: function valueClass__closure8() {
+    },
+    valueClass__closure9: function valueClass__closure9() {
+    },
+    valueClass__closure10: function valueClass__closure10() {
+    },
+    valueClass__closure11: function valueClass__closure11() {
+    },
+    valueClass__closure12: function valueClass__closure12() {
+    },
+    valueClass__closure13: function valueClass__closure13() {
+    },
+    valueClass__closure14: function valueClass__closure14() {
+    },
+    valueClass__closure15: function valueClass__closure15() {
+    },
+    valueClass__closure16: function valueClass__closure16() {
+    },
+    valueClass__closure17: function valueClass__closure17() {
+    },
+    valueClass__closure18: function valueClass__closure18() {
+    },
+    SassApiValue_assertSelector0(_this, allowParent, $name) {
+      var error, stackTrace, t1, exception,
+        string = _this._value$_selectorString$1($name);
+      try {
+        t1 = A.SelectorList_SelectorList$parse0(string, allowParent, null, null, false);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassFormatException_2._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = B.JSString_methods.replaceFirst$2(J.toString$0$(error), "Error: ", "");
+          A.throwWithTrace0(new A.SassScriptException0($name == null ? t1 : "$" + $name + ": " + t1), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    SassApiValue_assertCompoundSelector0(_this, $name) {
+      var error, stackTrace, t1, exception,
+        allowParent = false,
+        string = _this._value$_selectorString$1($name);
+      try {
+        t1 = A.SelectorParser$0(string, allowParent, null, null, false, null).parseCompoundSelector$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassFormatException_2._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = B.JSString_methods.replaceFirst$2(J.toString$0$(error), "Error: ", "");
+          A.throwWithTrace0(new A.SassScriptException0("$" + $name + ": " + t1), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    Value0: function Value0() {
+    },
+    VariableExpression0: function VariableExpression0(t0, t1, t2) {
+      this.namespace = t0;
+      this.name = t1;
+      this.span = t2;
+    },
+    VariableDeclaration$0($name, expression, span, comment, global, guarded, namespace) {
+      if (namespace != null && global)
+        A.throwExpression(A.ArgumentError$(string$.Other_, null));
+      return new A.VariableDeclaration0(namespace, $name, expression, guarded, global, span);
+    },
+    VariableDeclaration0: function VariableDeclaration0(t0, t1, t2, t3, t4, t5) {
+      var _ = this;
+      _.namespace = t0;
+      _.name = t1;
+      _.expression = t2;
+      _.isGuarded = t3;
+      _.isGlobal = t4;
+      _.span = t5;
+    },
+    WarnRule0: function WarnRule0(t0, t1) {
+      this.expression = t0;
+      this.span = t1;
+    },
+    WhileRule$0(condition, children, span) {
+      var t1 = A.List_List$unmodifiable(children, type$.Statement_2),
+        t2 = B.JSArray_methods.any$1(t1, new A.ParentStatement_closure0());
+      return new A.WhileRule0(condition, span, t1, t2);
+    },
+    WhileRule0: function WhileRule0(t0, t1, t2, t3) {
+      var _ = this;
+      _.condition = t0;
+      _.span = t1;
+      _.children = t2;
+      _.hasDeclarations = t3;
+    },
+    AsyncCallable_AsyncCallable$fromSignature(signature, callback, requireParens) {
+      var _0_0 = A.parseSignature(signature, requireParens);
+      return new A.AsyncBuiltInCallable0(_0_0._0, _0_0._1, callback, false);
+    },
+    Callable_Callable$fromSignature(signature, callback, requireParens) {
+      var _0_0 = A.parseSignature(signature, requireParens);
+      return new A.BuiltInCallable0(_0_0._0, A._setArrayType([new A._Record_2(_0_0._1, callback)], type$.JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value_2), false);
+    },
+    printString(string) {
+      if (typeof dartPrint == "function") {
+        dartPrint(string);
+        return;
+      }
+      if (typeof console == "object" && typeof console.log != "undefined") {
+        console.log(string);
+        return;
+      }
+      if (typeof print == "function") {
+        print(string);
+        return;
+      }
+      throw "Unable to print message: " + String(string);
+    },
+    mergeMaps(map1, map2, $K, $V) {
+      var result = A.LinkedHashMap_LinkedHashMap$of(map1, $K, $V);
+      result.addAll$1(0, map2);
+      return result;
+    },
+    groupBy(values, key, $S, $T) {
+      var t1, t2, _i, element, t3, t4,
+        map = A.LinkedHashMap_LinkedHashMap$_empty($T, $S._eval$1("List<0>"));
+      for (t1 = values.length, t2 = $S._eval$1("JSArray<0>"), _i = 0; _i < values.length; values.length === t1 || (0, A.throwConcurrentModificationError)(values), ++_i) {
+        element = values[_i];
+        t3 = key.call$1(element);
+        t4 = map.$index(0, t3);
+        if (t4 == null) {
+          t4 = A._setArrayType([], t2);
+          map.$indexSet(0, t3, t4);
+          t3 = t4;
+        } else
+          t3 = t4;
+        J.add$1$ax(t3, element);
+      }
+      return map;
+    },
+    minBy(values, orderBy) {
+      var t1, t2, minValue, minOrderBy, element, elementOrderBy;
+      for (t1 = values.$ti, t1 = t1._eval$1("@<1>")._bind$1(t1._rest[1]), t2 = new A.MappedIterator(J.get$iterator$ax(values.__internal$_iterable), values._f, t1._eval$1("MappedIterator<1,2>")), t1 = t1._rest[1], minValue = null, minOrderBy = null; t2.moveNext$0();) {
+        element = t2.__internal$_current;
+        if (element == null)
+          element = t1._as(element);
+        elementOrderBy = orderBy.call$1(element);
+        if (minOrderBy == null || A.defaultCompare(elementOrderBy, minOrderBy) < 0) {
+          minOrderBy = elementOrderBy;
+          minValue = element;
+        }
+      }
+      return minValue;
+    },
+    IterableExtension_firstWhereOrNull(_this, test) {
+      var t1, element;
+      for (t1 = J.get$iterator$ax(_this); t1.moveNext$0();) {
+        element = t1.get$current(t1);
+        if (test.call$1(element))
+          return element;
+      }
+      return null;
+    },
+    IterableExtension_get_firstOrNull(_this) {
+      var iterator = J.get$iterator$ax(_this);
+      if (iterator.moveNext$0())
+        return iterator.get$current(iterator);
+      return null;
+    },
+    IterableExtension_get_lastOrNull(_this) {
+      if (_this.get$length(0) === 0)
+        return null;
+      return _this.get$last(_this);
+    },
+    IterableExtension_get_singleOrNull(_this) {
+      var result,
+        iterator = J.get$iterator$ax(_this);
+      if (iterator.moveNext$0()) {
+        result = iterator.get$current(iterator);
+        if (!iterator.moveNext$0())
+          return result;
+      }
+      return null;
+    },
+    IterableNullableExtension_whereNotNull(_this, $T) {
+      return new A._SyncStarIterable(A.IterableNullableExtension_whereNotNull$body(_this, $T), $T._eval$1("_SyncStarIterable<0>"));
+    },
+    IterableNullableExtension_whereNotNull$body($async$_this, $async$$T) {
+      return function() {
+        var _this = $async$_this,
+          $T = $async$$T;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, element;
+        return function $async$IterableNullableExtension_whereNotNull($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = J.get$iterator$ax(_this);
+              case 2:
+                // for condition
+                if (!t1.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 3;
+                  break;
+                }
+                element = t1.get$current(t1);
+                $async$goto = element != null ? 4 : 5;
+                break;
+              case 4:
+                // then
+                $async$goto = 6;
+                return $async$iterator._async$_current = element, 1;
+              case 6:
+                // after yield
+              case 5:
+                // join
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 3:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    IterableIntegerExtension_get_maxOrNull(_this) {
+      var value, newValue,
+        t1 = _this.$ti,
+        iterator = new A.ListIterator(_this, _this.get$length(0), t1._eval$1("ListIterator<ListIterable.E>"));
+      if (iterator.moveNext$0()) {
+        value = iterator.__internal$_current;
+        if (value == null)
+          value = t1._eval$1("ListIterable.E")._as(value);
+        for (t1 = t1._eval$1("ListIterable.E"); iterator.moveNext$0();) {
+          newValue = iterator.__internal$_current;
+          if (newValue == null)
+            newValue = t1._as(newValue);
+          if (newValue > value)
+            value = newValue;
+        }
+        return value;
+      }
+      return null;
+    },
+    IterableIntegerExtension_get_max(_this) {
+      var t1 = A.IterableIntegerExtension_get_maxOrNull(_this);
+      return t1 == null ? A.throwExpression(A.StateError$("No element")) : t1;
+    },
+    IterableIntegerExtension_get_sum(_this) {
+      var t1, t2, result, t3;
+      for (t1 = _this.$ti, t1 = t1._eval$1("@<1>")._bind$1(t1._rest[1]), t2 = new A.MappedIterator(J.get$iterator$ax(_this.__internal$_iterable), _this._f, t1._eval$1("MappedIterator<1,2>")), t1 = t1._rest[1], result = 0; t2.moveNext$0();) {
+        t3 = t2.__internal$_current;
+        result += t3 == null ? t1._as(t3) : t3;
+      }
+      return result;
+    },
+    ListExtensions_mapIndexed(_this, convert, $E, $R) {
+      return new A._SyncStarIterable(A.ListExtensions_mapIndexed$body(_this, convert, $E, $R), $R._eval$1("_SyncStarIterable<0>"));
+    },
+    ListExtensions_mapIndexed$body($async$_this, $async$convert, $async$$E, $async$$R) {
+      return function() {
+        var _this = $async$_this,
+          convert = $async$convert,
+          $E = $async$$E,
+          $R = $async$$R;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, index;
+        return function $async$ListExtensions_mapIndexed($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = _this.length, index = 0;
+              case 2:
+                // for condition
+                if (!(index < t1)) {
+                  // goto after for
+                  $async$goto = 4;
+                  break;
+                }
+                $async$goto = 5;
+                return $async$iterator._async$_current = convert.call$2(index, _this[index]), 1;
+              case 5:
+                // after yield
+              case 3:
+                // for update
+                ++index;
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 4:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    ListExtensions_elementAtOrNull(_this, index) {
+      var t1 = J.getInterceptor$asx(_this);
+      return index < t1.get$length(_this) ? t1.$index(_this, index) : null;
+    },
+    defaultCompare(value1, value2) {
+      return J.compareTo$1$ns(type$.Comparable_nullable_Object._as(value1), value2);
+    },
+    current() {
+      var exception, t1, path, lastIndex, uri = null;
+      try {
+        uri = A.Uri_base();
+      } catch (exception) {
+        if (type$.Exception._is(A.unwrapException(exception))) {
+          t1 = $._current;
+          if (t1 != null)
+            return t1;
+          throw exception;
+        } else
+          throw exception;
+      }
+      if (J.$eq$(uri, $._currentUriBase)) {
+        t1 = $._current;
+        t1.toString;
+        return t1;
+      }
+      $._currentUriBase = uri;
+      if ($.$get$Style_platform() === $.$get$Style_url())
+        t1 = $._current = J.resolve$1$x(uri, ".").toString$0(0);
+      else {
+        path = uri.toFilePath$0();
+        lastIndex = path.length - 1;
+        t1 = $._current = lastIndex === 0 ? path : B.JSString_methods.substring$2(path, 0, lastIndex);
+      }
+      return t1;
+    },
+    absolute(part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15) {
+      return $.$get$context().absolute$15(part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15);
+    },
+    join(part1, part2, part3) {
+      var _null = null;
+      return $.$get$context().join$16(0, part1, part2, part3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    },
+    prettyUri(uri) {
+      var t1 = $.$get$context();
+      uri.toString;
+      return t1.prettyUri$1(uri);
+    },
+    isAlphabetic(char) {
+      var t1;
+      if (!(char >= 65 && char <= 90))
+        t1 = char >= 97 && char <= 122;
+      else
+        t1 = true;
+      return t1;
+    },
+    driveLetterEnd(path, index) {
+      var t2, t3, _null = null,
+        t1 = path.length,
+        index0 = index + 2;
+      if (t1 < index0)
+        return _null;
+      if (!A.isAlphabetic(path.charCodeAt(index)))
+        return _null;
+      t2 = index + 1;
+      if (path.charCodeAt(t2) !== 58) {
+        t3 = index + 4;
+        if (t1 < t3)
+          return _null;
+        if (B.JSString_methods.substring$2(path, t2, t3).toLowerCase() !== "%3a")
+          return _null;
+        index = index0;
+      }
+      t2 = index + 2;
+      if (t1 === t2)
+        return t2;
+      if (path.charCodeAt(t2) !== 47)
+        return _null;
+      return index + 3;
+    },
+    main0(args) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        t1;
+      var $async$main0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              A.printError("sass --embedded is unavailable in pure JS mode.");
+              t1 = A.isNodeJs() ? self.process : null;
+              if (t1 != null)
+                J.set$exitCode$x(t1, 1);
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$main0, $async$completer);
+    },
+    EvaluationContext_currentOrNull() {
+      var t1,
+        _0_0 = $.Zone__current.$index(0, B.Symbol__evaluationContext);
+      $label0$0: {
+        if (type$.EvaluationContext._is(_0_0)) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        t1 = null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    warn(message) {
+      var t1,
+        _0_0 = A.EvaluationContext_currentOrNull();
+      $label0$0: {
+        if (_0_0 != null) {
+          t1 = _0_0.warn$2(0, message, null);
+          break $label0$0;
+        }
+        t1 = B.StderrLogger_false.warn$1(0, message);
+        break $label0$0;
+      }
+      return t1;
+    },
+    warnForDeprecation(message, deprecation) {
+      var t1,
+        _0_0 = A.EvaluationContext_currentOrNull();
+      $label0$0: {
+        if (_0_0 != null) {
+          t1 = _0_0.warn$2(0, message, deprecation);
+          break $label0$0;
+        }
+        t1 = A.WarnForDeprecation_warnForDeprecation(B.StderrLogger_false, deprecation, message, null, null);
+        break $label0$0;
+      }
+      return t1;
+    },
+    compileStylesheets(options, graph, sourcesToDestinations, ifModified) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.bool),
+        $async$returnValue, t2, _1_4, source, t3, _i, t4, printedError, errorWithStackTrace, code, error, stackTrace, buffer, t1, $async$temp1;
+      var $async$compileStylesheets = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.nullable_String;
+              t1 = A.List_List$of(A.MapExtensions_get_pairs(sourcesToDestinations, t1, t1), true, type$.Record_2_nullable_String_and_nullable_String);
+              t2 = t1.length;
+              $async$goto = t2 === 1 ? 4 : 5;
+              break;
+            case 4:
+              // then
+              _1_4 = t1[0];
+              source = _1_4._0;
+              $async$temp1 = A;
+              $async$goto = 6;
+              return A._asyncAwait(A.compileStylesheet(options, graph, source, _1_4._1, ifModified), $async$compileStylesheets);
+            case 6:
+              // returning from await.
+              t1 = $async$temp1._setArrayType([$async$result], type$.JSArray_nullable_Record_3_int_and_String_and_nullable_String);
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 5:
+              // join
+              t3 = A._setArrayType([], type$.JSArray_Future_nullable_Record_3_int_and_String_and_nullable_String);
+              for (_i = 0; _i < t2; ++_i) {
+                t4 = t1[_i];
+                t3.push(A.compileStylesheet(options, graph, t4._0, t4._1, ifModified));
+              }
+              $async$goto = 7;
+              return A._asyncAwait(A.Future_wait(t3, A._asBool(options._options.$index(0, "stop-on-error")), type$.nullable_Record_3_int_and_String_and_nullable_String), $async$compileStylesheets);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 3:
+              // break $label0$0
+              for (t1 = J.get$iterator$ax(t1), printedError = false; t1.moveNext$0();) {
+                errorWithStackTrace = t1.get$current(t1);
+                if (errorWithStackTrace == null)
+                  continue;
+                code = errorWithStackTrace._0;
+                error = errorWithStackTrace._1;
+                stackTrace = errorWithStackTrace._2;
+                t2 = self.process;
+                if (t2 == null)
+                  t2 = null;
+                else {
+                  t2 = J.get$release$x(t2);
+                  t2 = t2 == null ? null : J.get$name$x(t2);
+                }
+                t2 = J.$eq$(t2, "node") ? self.process : null;
+                t2 = t2 == null ? null : J.get$exitCode$x(t2);
+                if (t2 == null)
+                  t2 = 0;
+                t2 = Math.max(t2, code);
+                t3 = self.process;
+                if (t3 == null)
+                  t3 = null;
+                else {
+                  t3 = J.get$release$x(t3);
+                  t3 = t3 == null ? null : J.get$name$x(t3);
+                }
+                t3 = J.$eq$(t3, "node") ? self.process : null;
+                if (t3 != null)
+                  J.set$exitCode$x(t3, t2);
+                buffer = new A.StringBuffer("");
+                t2 = (printedError ? buffer._contents = "" + "\n" : "") + error;
+                buffer._contents = t2;
+                if (stackTrace != null) {
+                  t2 += "\n";
+                  buffer._contents = t2;
+                  t2 += "\n";
+                  buffer._contents = t2;
+                  buffer._contents = t2 + stackTrace;
+                }
+                A.printError(buffer);
+                printedError = true;
+              }
+              $async$returnValue = !printedError;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$compileStylesheets, $async$completer);
+    },
+    repl(options) {
+      return A.repl$body(options);
+    },
+    repl$body(options) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$handler = 1, $async$currentError, $async$next = [], repl, trackingLogger, logger, evaluator, line, declaration, error, stackTrace, t4, t5, t6, t7, t8, line0, toZone, exception, t1, t2, t3, repl0;
+      var $async$repl = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = A._setArrayType([], type$.JSArray_String);
+              t2 = B.JSString_methods.$mul(" ", 3);
+              t3 = $.$get$alwaysValid();
+              repl0 = new A.Repl(">> ", t2, t3, t1);
+              repl0.__Repl__adapter_A = new A.ReplAdapter(repl0);
+              repl = repl0;
+              t1 = options._options;
+              trackingLogger = new A.TrackingLogger(A._asBool(t1.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(options.get$color()));
+              t2 = options.get$silenceDeprecations(0);
+              logger = A.DeprecationProcessingLogger$(trackingLogger, options.get$fatalDeprecations(0), options.get$futureDeprecations(0), !A._asBool(t1.$index(0, "verbose")), t2);
+              t2 = $.$get$FilesystemImporter_cwd();
+              evaluator = new A.Evaluator(A._EvaluateVisitor$(null, A.ImportCache$(options.get$pkgImporters(), type$.List_String._as(t1.$index(0, "load-path")), logger), logger, null, false, false), t2);
+              t2 = repl.__Repl__adapter_A;
+              t2 === $ && A.throwUnnamedLateFieldNI();
+              t2 = new A._StreamIterator(A.checkNotNullable(t2.runAsync$0(), "stream", type$.Object));
+              $async$handler = 2;
+              t1 = type$.Expression, t3 = type$.String, t4 = type$.VariableDeclaration;
+            case 5:
+              // for condition
+              $async$goto = 7;
+              return A._asyncAwait(t2.moveNext$0(), $async$repl);
+            case 7:
+              // returning from await.
+              if (!$async$result) {
+                // goto after for
+                $async$goto = 6;
+                break;
+              }
+              line = t2.get$current(0);
+              if (J.trim$0$s(line).length === 0) {
+                // goto for condition
+                $async$goto = 5;
+                break;
+              }
+              try {
+                if (J.startsWith$1$s(line, "@")) {
+                  t5 = evaluator;
+                  t6 = logger;
+                  t7 = A.SpanScanner$(line, null);
+                  if (t6 == null)
+                    t6 = B.StderrLogger_false;
+                  t6 = new A.ScssParser(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), t7, t6, null).parseUseRule$0();
+                  t5._visitor.runStatement$2(t5._importer, t6);
+                  // goto for condition
+                  $async$goto = 5;
+                  break;
+                }
+                t5 = A.SpanScanner$(line, null);
+                if (new A.Parser(t5, B.StderrLogger_false, null)._isVariableDeclarationLike$0()) {
+                  t5 = logger;
+                  t6 = A.SpanScanner$(line, null);
+                  if (t5 == null)
+                    t5 = B.StderrLogger_false;
+                  declaration = new A.ScssParser(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), t6, t5, null).parseVariableDeclaration$0();
+                  t5 = evaluator;
+                  t5._visitor.runStatement$2(t5._importer, declaration);
+                  t5 = evaluator;
+                  t6 = declaration.name;
+                  t7 = declaration.span;
+                  t8 = declaration.namespace;
+                  line0 = t5._visitor.runExpression$2(t5._importer, new A.VariableExpression(t8, t6, t7)).toString$0(0);
+                  toZone = $.printToZone;
+                  if (toZone == null)
+                    A.printString(line0);
+                  else
+                    toZone.call$1(line0);
+                } else {
+                  t5 = evaluator;
+                  t6 = logger;
+                  t7 = A.SpanScanner$(line, null);
+                  if (t6 == null)
+                    t6 = B.StderrLogger_false;
+                  t6 = new A.ScssParser(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), t7, t6, null);
+                  t6 = t6._parseSingleProduction$1$1(t6.get$_expression(), t1);
+                  line0 = t5._visitor.runExpression$2(t5._importer, t6).toString$0(0);
+                  toZone = $.printToZone;
+                  if (toZone == null)
+                    A.printString(line0);
+                  else
+                    toZone.call$1(line0);
+                }
+              } catch (exception) {
+                t5 = A.unwrapException(exception);
+                if (t5 instanceof A.SassException) {
+                  error = t5;
+                  stackTrace = A.getTraceFromException(exception);
+                  t5 = error;
+                  t6 = typeof t5 != "string";
+                  if (!t6 || typeof t5 == "number" || A._isBool(t5))
+                    t5 = null;
+                  else {
+                    t7 = $.$get$_traces();
+                    if (A._isBool(t5) || typeof t5 == "number" || !t6 || t5 instanceof A._Record)
+                      A.Expando__badExpandoKey(t5);
+                    t5 = t7._jsWeakMap.get(t5);
+                  }
+                  if (t5 == null)
+                    t5 = stackTrace;
+                  A._logError(error, t5, line, repl, options, trackingLogger);
+                } else
+                  throw exception;
+              }
+              // goto for condition
+              $async$goto = 5;
+              break;
+            case 6:
+              // after for
+              $async$next.push(4);
+              // goto finally
+              $async$goto = 3;
+              break;
+            case 2:
+              // uncaught
+              $async$next = [1];
+            case 3:
+              // finally
+              $async$handler = 1;
+              $async$goto = 8;
+              return A._asyncAwait(t2.cancel$0(), $async$repl);
+            case 8:
+              // returning from await.
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 4:
+              // after finally
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+            case 1:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$repl, $async$completer);
+    },
+    _logError(error, stackTrace, line, repl, options, logger) {
+      var t2, spacesBeforeError, t3,
+        t1 = A.SourceSpanException.prototype.get$span.call(error, 0);
+      if (t1.get$sourceUrl(t1) == null)
+        if (!A._asBool(options._options.$index(0, "quiet")))
+          t1 = logger._emittedDebug || logger._emittedWarning;
+        else
+          t1 = false;
+      else
+        t1 = true;
+      if (t1) {
+        A.print(error.toString$1$color(0, options.get$color()));
+        return;
+      }
+      t1 = options.get$color() ? "" + "\x1b[31m" : "";
+      t2 = A.SourceSpanException.prototype.get$span.call(error, 0);
+      t2 = t2.get$start(t2);
+      spacesBeforeError = repl.prompt.length + t2.file.getColumn$1(t2.offset);
+      if (options.get$color()) {
+        t2 = A.SourceSpanException.prototype.get$span.call(error, 0);
+        t2 = t2.get$start(t2);
+        t2 = t2.file.getColumn$1(t2.offset) < line.length;
+      } else
+        t2 = false;
+      if (t2)
+        t1 = t1 + ("\x1b[1F\x1b[" + spacesBeforeError + "C") + (A.SourceSpanException.prototype.get$span.call(error, 0).get$text() + "\n");
+      t2 = B.JSString_methods.$mul(" ", spacesBeforeError);
+      t3 = A.SourceSpanException.prototype.get$span.call(error, 0);
+      t3 = t1 + t2 + (B.JSString_methods.$mul("^", Math.max(1, t3.get$length(t3))) + "\n");
+      t1 = options.get$color() ? t3 + "\x1b[0m" : t3;
+      t1 += "Error: " + error._span_exception$_message + "\n";
+      if (A._asBool(options._options.$index(0, "trace")))
+        t1 += A.Trace_Trace$from(stackTrace).get$terse().toString$0(0);
+      A.print(B.JSString_methods.trimRight$0(t1.charCodeAt(0) == 0 ? t1 : t1));
+    },
+    CharacterExtension_get_isAlphabetic(_this) {
+      var t1;
+      if (!(_this >= 97 && _this <= 122))
+        t1 = _this >= 65 && _this <= 90;
+      else
+        t1 = true;
+      return t1;
+    },
+    CharacterExtension_get_isHex(_this) {
+      var t1;
+      if (!(_this >= 48 && _this <= 57))
+        if (!(_this >= 97 && _this <= 102))
+          t1 = _this >= 65 && _this <= 70;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    asHex(character) {
+      var t1;
+      $label0$0: {
+        if (character <= 57) {
+          t1 = character - 48;
+          break $label0$0;
+        }
+        if (character <= 70) {
+          t1 = 10 + character - 65;
+          break $label0$0;
+        }
+        t1 = 10 + character - 97;
+        break $label0$0;
+      }
+      return t1;
+    },
+    hexCharFor(number) {
+      return number < 10 ? 48 + number : 87 + number;
+    },
+    opposite(character) {
+      var t1;
+      $label0$0: {
+        if (40 === character) {
+          t1 = 41;
+          break $label0$0;
+        }
+        if (123 === character) {
+          t1 = 125;
+          break $label0$0;
+        }
+        if (91 === character) {
+          t1 = 93;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.ArgumentError$('"' + A.String_String$fromCharCode(character) + "\" isn't a brace-like character.", null));
+      }
+      return t1;
+    },
+    characterEqualsIgnoreCase(character1, character2) {
+      var upperCase1;
+      if (character1 === character2)
+        return true;
+      if ((character1 ^ character2) >>> 0 !== 32)
+        return false;
+      upperCase1 = (character1 & 4294967263) >>> 0;
+      return upperCase1 >= 65 && upperCase1 <= 90;
+    },
+    IterableExtension_search(_this, callback) {
+      var t1, _0_0;
+      for (t1 = J.get$iterator$ax(_this); t1.moveNext$0();) {
+        _0_0 = callback.call$1(t1.get$current(t1));
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    IterableExtension_get_exceptLast(_this) {
+      var t1 = J.getInterceptor$asx(_this),
+        size = t1.get$length(_this) - 1;
+      if (size < 0)
+        throw A.wrapException(A.StateError$("Iterable may not be empty"));
+      return t1.take$1(_this, size);
+    },
+    NullableExtension_andThen(_this, fn) {
+      return _this == null ? null : fn.call$1(_this);
+    },
+    SetExtension_removeNull(_this, $T) {
+      _this.remove$1(0, null);
+      return A.Set_castFrom(_this, _this.get$_newSimilarSet(), A._instanceType(_this)._precomputed1, $T);
+    },
+    fuzzyEquals(number1, number2) {
+      var t1;
+      if (number1 === number2)
+        return true;
+      if (Math.abs(number1 - number2) <= $.$get$_epsilon()) {
+        t1 = $.$get$_inverseEpsilon();
+        t1 = B.JSNumber_methods.round$0(number1 * t1) === B.JSNumber_methods.round$0(number2 * t1);
+      } else
+        t1 = false;
+      return t1;
+    },
+    fuzzyHashCode(number) {
+      if (!isFinite(number))
+        return B.JSNumber_methods.get$hashCode(number);
+      return B.JSInt_methods.get$hashCode(B.JSNumber_methods.round$0(number * $.$get$_inverseEpsilon()));
+    },
+    fuzzyLessThan(number1, number2) {
+      return number1 < number2 && !A.fuzzyEquals(number1, number2);
+    },
+    fuzzyLessThanOrEquals(number1, number2) {
+      return number1 < number2 || A.fuzzyEquals(number1, number2);
+    },
+    fuzzyGreaterThan(number1, number2) {
+      return number1 > number2 && !A.fuzzyEquals(number1, number2);
+    },
+    fuzzyGreaterThanOrEquals(number1, number2) {
+      return number1 > number2 || A.fuzzyEquals(number1, number2);
+    },
+    fuzzyAsInt(number) {
+      var rounded;
+      if (number == 1 / 0 || number == -1 / 0 || isNaN(number))
+        return null;
+      rounded = B.JSNumber_methods.round$0(number);
+      return A.fuzzyEquals(number, rounded) ? rounded : null;
+    },
+    fuzzyRound(number) {
+      var t1;
+      if (number > 0) {
+        t1 = B.JSNumber_methods.$mod(number, 1);
+        return t1 < 0.5 && !A.fuzzyEquals(t1, 0.5) ? B.JSNumber_methods.floor$0(number) : B.JSNumber_methods.ceil$0(number);
+      } else {
+        t1 = B.JSNumber_methods.$mod(number, 1);
+        return t1 < 0.5 || A.fuzzyEquals(t1, 0.5) ? B.JSNumber_methods.floor$0(number) : B.JSNumber_methods.ceil$0(number);
+      }
+    },
+    fuzzyCheckRange(number, min, max) {
+      if (A.fuzzyEquals(number, min))
+        return min;
+      if (A.fuzzyEquals(number, max))
+        return max;
+      if (number > min && number < max)
+        return number;
+      return null;
+    },
+    fuzzyAssertRange(number, min, max, $name) {
+      var result = A.fuzzyCheckRange(number, min, max);
+      if (result != null)
+        return result;
+      throw A.wrapException(A.RangeError$range(number, min, max, $name, "must be between " + min + " and " + max));
+    },
+    moduloLikeSass(num1, num2) {
+      var result;
+      if (num1 == 1 / 0 || num1 == -1 / 0)
+        return 0 / 0;
+      if (num2 == 1 / 0 || num2 == -1 / 0)
+        return A.DoubleWithSignedZero_get_signIncludingZero(num1) === J.get$sign$in(num2) ? num1 : 0 / 0;
+      if (num2 > 0)
+        return B.JSNumber_methods.$mod(num1, num2);
+      if (num2 === 0)
+        return 0 / 0;
+      result = B.JSNumber_methods.$mod(num1, num2);
+      return result === 0 ? 0 : result + num2;
+    },
+    sqrt(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber(Math.sqrt(number._number$_value), null);
+    },
+    sin(number) {
+      return A.SassNumber_SassNumber(Math.sin(number.coerceValueToUnit$2("rad", "number")), null);
+    },
+    cos(number) {
+      return A.SassNumber_SassNumber(Math.cos(number.coerceValueToUnit$2("rad", "number")), null);
+    },
+    tan(number) {
+      return A.SassNumber_SassNumber(Math.tan(number.coerceValueToUnit$2("rad", "number")), null);
+    },
+    atan(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber$withUnits(Math.atan(number._number$_value) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    asin(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber$withUnits(Math.asin(number._number$_value) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    acos(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber$withUnits(Math.acos(number._number$_value) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    log(number, base) {
+      if (base != null)
+        return A.SassNumber_SassNumber(Math.log(number._number$_value) / Math.log(base._number$_value), null);
+      return A.SassNumber_SassNumber(Math.log(number._number$_value), null);
+    },
+    pow0(base, exponent) {
+      base.assertNoUnits$1("base");
+      exponent.assertNoUnits$1("exponent");
+      return A.SassNumber_SassNumber(Math.pow(base._number$_value, exponent._number$_value), null);
+    },
+    DoubleWithSignedZero_get_signIncludingZero(_this) {
+      if (_this === -0.0)
+        return -1;
+      if (_this === 0)
+        return 1;
+      return J.get$sign$in(_this);
+    },
+    SpanExtensions_trimLeft(_this) {
+      var t1, start = 0;
+      while (true) {
+        t1 = _this.get$text().charCodeAt(start);
+        if (!(t1 === 32 || t1 === 9 || t1 === 10 || t1 === 13 || t1 === 12))
+          break;
+        ++start;
+      }
+      return A.FileSpanExtension_subspan(_this, start, null);
+    },
+    SpanExtensions_trimRight(_this) {
+      var t1,
+        end = _this.get$text().length - 1;
+      while (true) {
+        t1 = _this.get$text().charCodeAt(end);
+        if (!(t1 === 32 || t1 === 9 || t1 === 10 || t1 === 13 || t1 === 12))
+          break;
+        --end;
+      }
+      return A.FileSpanExtension_subspan(_this, 0, end + 1);
+    },
+    SpanExtensions_initialIdentifier(_this) {
+      var i,
+        scanner = A.StringScanner$(_this.get$text(), null, null);
+      for (i = 0; false; ++i)
+        scanner.readChar$0();
+      A._scanIdentifier(scanner);
+      return A.FileSpanExtension_subspan(_this, 0, scanner._string_scanner$_position);
+    },
+    SpanExtensions_withoutInitialIdentifier(_this) {
+      var scanner = A.StringScanner$(_this.get$text(), null, null);
+      A._scanIdentifier(scanner);
+      return A.FileSpanExtension_subspan(_this, scanner._string_scanner$_position, null);
+    },
+    _scanIdentifier(scanner) {
+      var t1, _0_0, t2;
+      for (t1 = scanner.string.length; scanner._string_scanner$_position !== t1;) {
+        _0_0 = scanner.peekChar$0();
+        if (92 === _0_0) {
+          A.consumeEscapedCharacter(scanner);
+          continue;
+        }
+        if (A._isInt(_0_0)) {
+          if (_0_0 !== 95) {
+            if (!(_0_0 >= 97 && _0_0 <= 122))
+              t2 = _0_0 >= 65 && _0_0 <= 90;
+            else
+              t2 = true;
+            t2 = t2 || _0_0 >= 128;
+          } else
+            t2 = true;
+          if (!t2)
+            t2 = _0_0 >= 48 && _0_0 <= 57 || _0_0 === 45;
+          else
+            t2 = true;
+        } else
+          t2 = false;
+        if (t2) {
+          scanner.readChar$0();
+          continue;
+        }
+        break;
+      }
+    },
+    encodeVlq(value) {
+      var res, signBit, digit, t1;
+      if (value < $.$get$minInt32() || value > $.$get$maxInt32())
+        throw A.wrapException(A.ArgumentError$("expected 32 bit int, got: " + value, null));
+      res = A._setArrayType([], type$.JSArray_String);
+      if (value < 0) {
+        value = -value;
+        signBit = 1;
+      } else
+        signBit = 0;
+      value = value << 1 | signBit;
+      do {
+        digit = value & 31;
+        value = value >>> 5;
+        t1 = value > 0;
+        res.push(string$.ABCDEF[t1 ? digit | 32 : digit]);
+      } while (t1);
+      return res;
+    },
+    isAllTheSame(iter) {
+      var firstValue, t1, t2, value;
+      if (iter.get$length(0) === 0)
+        return true;
+      firstValue = iter.get$first(0);
+      for (t1 = A.SubListIterable$(iter, 1, null, iter.$ti._eval$1("ListIterable.E")), t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListIterable.E>")), t2 = t2._eval$1("ListIterable.E"); t1.moveNext$0();) {
+        value = t1.__internal$_current;
+        if (!J.$eq$(value == null ? t2._as(value) : value, firstValue))
+          return false;
+      }
+      return true;
+    },
+    replaceFirstNull(list, element) {
+      var index = B.JSArray_methods.indexOf$1(list, null);
+      if (index < 0)
+        throw A.wrapException(A.ArgumentError$(A.S(list) + " contains no null elements.", null));
+      list[index] = element;
+    },
+    replaceWithNull(list, element) {
+      var index = B.JSArray_methods.indexOf$1(list, element);
+      if (index < 0)
+        throw A.wrapException(A.ArgumentError$(A.S(list) + " contains no elements matching " + element.toString$0(0) + ".", null));
+      list[index] = null;
+    },
+    countCodeUnits(string, codeUnit) {
+      var t1, t2, count, t3;
+      for (t1 = new A.CodeUnits(string), t2 = type$.CodeUnits, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"), count = 0; t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if ((t3 == null ? t2._as(t3) : t3) === codeUnit)
+          ++count;
+      }
+      return count;
+    },
+    findLineStart(context, text, column) {
+      var beginningOfLine, index, lineStart;
+      if (text.length === 0)
+        for (beginningOfLine = 0; true;) {
+          index = B.JSString_methods.indexOf$2(context, "\n", beginningOfLine);
+          if (index === -1)
+            return context.length - beginningOfLine >= column ? beginningOfLine : null;
+          if (index - beginningOfLine >= column)
+            return beginningOfLine;
+          beginningOfLine = index + 1;
+        }
+      index = B.JSString_methods.indexOf$1(context, text);
+      for (; index !== -1;) {
+        lineStart = index === 0 ? 0 : B.JSString_methods.lastIndexOf$2(context, "\n", index - 1) + 1;
+        if (column === index - lineStart)
+          return lineStart;
+        index = B.JSString_methods.indexOf$2(context, text, index + 1);
+      }
+      return null;
+    },
+    validateErrorArgs(string, match, position, $length) {
+      var t2,
+        t1 = position != null;
+      if (t1)
+        if (position < 0)
+          throw A.wrapException(A.RangeError$("position must be greater than or equal to 0."));
+        else if (position > string.length)
+          throw A.wrapException(A.RangeError$("position must be less than or equal to the string length."));
+      t2 = $length != null;
+      if (t2 && $length < 0)
+        throw A.wrapException(A.RangeError$("length must be greater than or equal to 0."));
+      if (t1 && t2 && position + $length > string.length)
+        throw A.wrapException(A.RangeError$("position plus length must not go beyond the end of the string."));
+    },
+    CharacterExtension_get_isAlphabetic0(_this) {
+      var t1;
+      if (!(_this >= 97 && _this <= 122))
+        t1 = _this >= 65 && _this <= 90;
+      else
+        t1 = true;
+      return t1;
+    },
+    CharacterExtension_get_isHex0(_this) {
+      var t1;
+      if (!(_this >= 48 && _this <= 57))
+        if (!(_this >= 97 && _this <= 102))
+          t1 = _this >= 65 && _this <= 70;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    asHex0(character) {
+      var t1;
+      $label0$0: {
+        if (character <= 57) {
+          t1 = character - 48;
+          break $label0$0;
+        }
+        if (character <= 70) {
+          t1 = 10 + character - 65;
+          break $label0$0;
+        }
+        t1 = 10 + character - 97;
+        break $label0$0;
+      }
+      return t1;
+    },
+    hexCharFor0(number) {
+      return number < 10 ? 48 + number : 87 + number;
+    },
+    opposite0(character) {
+      var t1;
+      $label0$0: {
+        if (40 === character) {
+          t1 = 41;
+          break $label0$0;
+        }
+        if (123 === character) {
+          t1 = 125;
+          break $label0$0;
+        }
+        if (91 === character) {
+          t1 = 93;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.ArgumentError$('"' + A.String_String$fromCharCode(character) + "\" isn't a brace-like character.", null));
+      }
+      return t1;
+    },
+    characterEqualsIgnoreCase0(character1, character2) {
+      var upperCase1;
+      if (character1 === character2)
+        return true;
+      if ((character1 ^ character2) >>> 0 !== 32)
+        return false;
+      upperCase1 = (character1 & 4294967263) >>> 0;
+      return upperCase1 >= 65 && upperCase1 <= 90;
+    },
+    EvaluationContext_currentOrNull0() {
+      var t1,
+        _0_0 = $.Zone__current.$index(0, B.Symbol__evaluationContext);
+      $label0$0: {
+        if (type$.EvaluationContext_2._is(_0_0)) {
+          t1 = _0_0;
+          break $label0$0;
+        }
+        t1 = null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    warn0(message) {
+      var t1,
+        _0_0 = A.EvaluationContext_currentOrNull0();
+      $label0$0: {
+        if (_0_0 != null) {
+          t1 = _0_0.warn$2(0, message, null);
+          break $label0$0;
+        }
+        t1 = B.StderrLogger_false0.warn$1(0, message);
+        break $label0$0;
+      }
+      return t1;
+    },
+    warnForDeprecation0(message, deprecation) {
+      var t1,
+        _0_0 = A.EvaluationContext_currentOrNull0();
+      $label0$0: {
+        if (_0_0 != null) {
+          t1 = _0_0.warn$2(0, message, deprecation);
+          break $label0$0;
+        }
+        t1 = A.WarnForDeprecation_warnForDeprecation0(B.StderrLogger_false0, deprecation, message, null, null);
+        break $label0$0;
+      }
+      return t1;
+    },
+    IterableExtension_search0(_this, callback) {
+      var t1, _0_0;
+      for (t1 = J.get$iterator$ax(_this); t1.moveNext$0();) {
+        _0_0 = callback.call$1(t1.get$current(t1));
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    IterableExtension_get_exceptLast0(_this) {
+      var t1 = J.getInterceptor$asx(_this),
+        size = t1.get$length(_this) - 1;
+      if (size < 0)
+        throw A.wrapException(A.StateError$("Iterable may not be empty"));
+      return t1.take$1(_this, size);
+    },
+    NullableExtension_andThen0(_this, fn) {
+      return _this == null ? null : fn.call$1(_this);
+    },
+    fuzzyEquals0(number1, number2) {
+      var t1;
+      if (number1 === number2)
+        return true;
+      if (Math.abs(number1 - number2) <= $.$get$_epsilon0()) {
+        t1 = $.$get$_inverseEpsilon0();
+        t1 = B.JSNumber_methods.round$0(number1 * t1) === B.JSNumber_methods.round$0(number2 * t1);
+      } else
+        t1 = false;
+      return t1;
+    },
+    fuzzyHashCode0(number) {
+      if (!isFinite(number))
+        return B.JSNumber_methods.get$hashCode(number);
+      return B.JSInt_methods.get$hashCode(B.JSNumber_methods.round$0(number * $.$get$_inverseEpsilon0()));
+    },
+    fuzzyLessThan0(number1, number2) {
+      return number1 < number2 && !A.fuzzyEquals0(number1, number2);
+    },
+    fuzzyLessThanOrEquals0(number1, number2) {
+      return number1 < number2 || A.fuzzyEquals0(number1, number2);
+    },
+    fuzzyGreaterThan0(number1, number2) {
+      return number1 > number2 && !A.fuzzyEquals0(number1, number2);
+    },
+    fuzzyGreaterThanOrEquals0(number1, number2) {
+      return number1 > number2 || A.fuzzyEquals0(number1, number2);
+    },
+    fuzzyIsInt(number) {
+      if (number == 1 / 0 || number == -1 / 0 || isNaN(number))
+        return false;
+      return A.fuzzyEquals0(number, B.JSNumber_methods.round$0(number));
+    },
+    fuzzyAsInt0(number) {
+      var rounded;
+      if (number == 1 / 0 || number == -1 / 0 || isNaN(number))
+        return null;
+      rounded = B.JSNumber_methods.round$0(number);
+      return A.fuzzyEquals0(number, rounded) ? rounded : null;
+    },
+    fuzzyRound0(number) {
+      var t1;
+      if (number > 0) {
+        t1 = B.JSNumber_methods.$mod(number, 1);
+        return t1 < 0.5 && !A.fuzzyEquals0(t1, 0.5) ? B.JSNumber_methods.floor$0(number) : B.JSNumber_methods.ceil$0(number);
+      } else {
+        t1 = B.JSNumber_methods.$mod(number, 1);
+        return t1 < 0.5 || A.fuzzyEquals0(t1, 0.5) ? B.JSNumber_methods.floor$0(number) : B.JSNumber_methods.ceil$0(number);
+      }
+    },
+    fuzzyCheckRange0(number, min, max) {
+      if (A.fuzzyEquals0(number, min))
+        return min;
+      if (A.fuzzyEquals0(number, max))
+        return max;
+      if (number > min && number < max)
+        return number;
+      return null;
+    },
+    fuzzyAssertRange0(number, min, max, $name) {
+      var result = A.fuzzyCheckRange0(number, min, max);
+      if (result != null)
+        return result;
+      throw A.wrapException(A.RangeError$range(number, min, max, $name, "must be between " + min + " and " + max));
+    },
+    moduloLikeSass0(num1, num2) {
+      var result;
+      if (num1 == 1 / 0 || num1 == -1 / 0)
+        return 0 / 0;
+      if (num2 == 1 / 0 || num2 == -1 / 0)
+        return A.DoubleWithSignedZero_get_signIncludingZero0(num1) === J.get$sign$in(num2) ? num1 : 0 / 0;
+      if (num2 > 0)
+        return B.JSNumber_methods.$mod(num1, num2);
+      if (num2 === 0)
+        return 0 / 0;
+      result = B.JSNumber_methods.$mod(num1, num2);
+      return result === 0 ? 0 : result + num2;
+    },
+    sqrt0(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber0(Math.sqrt(number._number1$_value), null);
+    },
+    sin0(number) {
+      return A.SassNumber_SassNumber0(Math.sin(number.coerceValueToUnit$2("rad", "number")), null);
+    },
+    cos0(number) {
+      return A.SassNumber_SassNumber0(Math.cos(number.coerceValueToUnit$2("rad", "number")), null);
+    },
+    tan0(number) {
+      return A.SassNumber_SassNumber0(Math.tan(number.coerceValueToUnit$2("rad", "number")), null);
+    },
+    atan0(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber$withUnits0(Math.atan(number._number1$_value) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    asin0(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber$withUnits0(Math.asin(number._number1$_value) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    acos0(number) {
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber$withUnits0(Math.acos(number._number1$_value) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    log0(number, base) {
+      if (base != null)
+        return A.SassNumber_SassNumber0(Math.log(number._number1$_value) / Math.log(base._number1$_value), null);
+      return A.SassNumber_SassNumber0(Math.log(number._number1$_value), null);
+    },
+    pow1(base, exponent) {
+      base.assertNoUnits$1("base");
+      exponent.assertNoUnits$1("exponent");
+      return A.SassNumber_SassNumber0(Math.pow(base._number1$_value, exponent._number1$_value), null);
+    },
+    DoubleWithSignedZero_get_signIncludingZero0(_this) {
+      if (_this === -0.0)
+        return -1;
+      if (_this === 0)
+        return 1;
+      return J.get$sign$in(_this);
+    },
+    main1(args) {
+      return A.main$body(args);
+    },
+    main$body(args) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$handler = 2, $async$currentError, options, t1, graph, error, error0, stackTrace, buffer, t2, t3, t4, t5, exception, $async$exception, $async$temp1;
+      var $async$main1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (args.length >= 1 && "--embedded" === args[0]) {
+                A.main0(B.JSArray_methods.sublist$1(args, 1));
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              options = null;
+              $async$handler = 4;
+              options = A.ExecutableOptions_ExecutableOptions$parse(args);
+              t2 = options._options;
+              $._glyphs = !(t2.wasParsed$1("unicode") ? A._asBool(t2.$index(0, "unicode")) : $._glyphs !== B.C_AsciiGlyphSet) ? B.C_AsciiGlyphSet : B.C_UnicodeGlyphSet;
+              $async$goto = A._asBool(options._options.$index(0, "version")) ? 7 : 8;
+              break;
+            case 7:
+              // then
+              $async$temp1 = A;
+              $async$goto = 9;
+              return A._asyncAwait(A._loadVersion(), $async$main1);
+            case 9:
+              // returning from await.
+              $async$temp1.print($async$result);
+              t1 = A.isNodeJs() ? self.process : null;
+              if (t1 != null)
+                J.set$exitCode$x(t1, 0);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 8:
+              // join
+              $async$goto = options.get$interactive() ? 10 : 11;
+              break;
+            case 10:
+              // then
+              $async$goto = 12;
+              return A._asyncAwait(A.repl(options), $async$main1);
+            case 12:
+              // returning from await.
+              // goto return
+              $async$goto = 1;
+              break;
+            case 11:
+              // join
+              t1 = A.List_List$of(options.get$pkgImporters(), true, type$.Importer_2);
+              J.add$1$ax(t1, $.$get$FilesystemImporter_noLoadPath());
+              t2 = type$.List_String._as(options._options.$index(0, "load-path"));
+              t3 = options;
+              t3 = A._asBool(t3._options.$index(0, "quiet")) ? $.$get$Logger_quiet() : new A.StderrLogger(t3.get$color());
+              t4 = J.get$silenceDeprecations$x(options);
+              t5 = type$.Uri;
+              graph = new A.StylesheetGraph(A.LinkedHashMap_LinkedHashMap$_empty(t5, type$.StylesheetNode), A.ImportCache$(t1, t2, A.DeprecationProcessingLogger$(t3, J.get$fatalDeprecations$x(options), J.get$futureDeprecations$x(options), false, t4)), A.LinkedHashMap_LinkedHashMap$_empty(t5, type$.DateTime));
+              $async$goto = A._asBool(options._options.$index(0, "watch")) ? 13 : 14;
+              break;
+            case 13:
+              // then
+              $async$goto = 15;
+              return A._asyncAwait(A.watch(options, graph), $async$main1);
+            case 15:
+              // returning from await.
+              // goto return
+              $async$goto = 1;
+              break;
+            case 14:
+              // join
+              t1 = options;
+              t2 = options;
+              t2._ensureSources$0();
+              t2 = t2._sourcesToDestinations;
+              t2.toString;
+              $async$goto = 16;
+              return A._asyncAwait(A.compileStylesheets(t1, graph, t2, A._asBool(options._options.$index(0, "update"))), $async$main1);
+            case 16:
+              // returning from await.
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.UsageException) {
+                error = t1;
+                A.print(error.message + "\n");
+                A.print("Usage: sass <input.scss> [output.css]\n       sass <input.scss>:<output.css> <input/>:<output/> <dir/>\n");
+                t1 = $.$get$ExecutableOptions__parser();
+                A.print(new A._Usage(t1._optionsAndSeparators, new A.StringBuffer(""), t1.usageLineLength).generate$0());
+                t1 = A.isNodeJs() ? self.process : null;
+                if (t1 != null)
+                  J.set$exitCode$x(t1, 64);
+              } else {
+                error0 = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                buffer = new A.StringBuffer("");
+                t1 = options;
+                t1 = t1 == null ? null : t1.get$color();
+                if (t1 === true)
+                  buffer._contents += "\x1b[31m\x1b[1m";
+                buffer._contents += "Unexpected exception:";
+                t1 = options;
+                t1 = t1 == null ? null : t1.get$color();
+                if (t1 === true)
+                  buffer._contents += "\x1b[0m";
+                buffer._contents += "\n";
+                t1 = buffer;
+                t2 = A.S(error0) + "\n";
+                t1._contents += t2;
+                buffer._contents += "\n";
+                buffer._contents += "\n";
+                t2 = buffer;
+                t1 = A.getTrace(error0);
+                t1 = B.JSString_methods.trimRight$0(A.Trace_Trace$from(t1 == null ? stackTrace : t1).get$terse().toString$0(0));
+                t2._contents += t1;
+                A.printError(buffer);
+                t1 = A.isNodeJs() ? self.process : null;
+                if (t1 != null)
+                  J.set$exitCode$x(t1, 255);
+              }
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$main1, $async$completer);
+    },
+    _loadVersion() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue;
+      var $async$_loadVersion = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = "1.77.4 compiled with dart2js 3.4.2";
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_loadVersion, $async$completer);
+    },
+    SpanExtensions_trimLeft0(_this) {
+      var t1, start = 0;
+      while (true) {
+        t1 = _this.get$text().charCodeAt(start);
+        if (!(t1 === 32 || t1 === 9 || t1 === 10 || t1 === 13 || t1 === 12))
+          break;
+        ++start;
+      }
+      return A.FileSpanExtension_subspan(_this, start, null);
+    },
+    SpanExtensions_trimRight0(_this) {
+      var t1,
+        end = _this.get$text().length - 1;
+      while (true) {
+        t1 = _this.get$text().charCodeAt(end);
+        if (!(t1 === 32 || t1 === 9 || t1 === 10 || t1 === 13 || t1 === 12))
+          break;
+        --end;
+      }
+      return A.FileSpanExtension_subspan(_this, 0, end + 1);
+    },
+    SpanExtensions_initialIdentifier0(_this) {
+      var i,
+        scanner = A.StringScanner$(_this.get$text(), null, null);
+      for (i = 0; false; ++i)
+        scanner.readChar$0();
+      A._scanIdentifier0(scanner);
+      return A.FileSpanExtension_subspan(_this, 0, scanner._string_scanner$_position);
+    },
+    SpanExtensions_withoutInitialIdentifier0(_this) {
+      var scanner = A.StringScanner$(_this.get$text(), null, null);
+      A._scanIdentifier0(scanner);
+      return A.FileSpanExtension_subspan(_this, scanner._string_scanner$_position, null);
+    },
+    _scanIdentifier0(scanner) {
+      var t1, _0_0, t2;
+      for (t1 = scanner.string.length; scanner._string_scanner$_position !== t1;) {
+        _0_0 = scanner.peekChar$0();
+        if (92 === _0_0) {
+          A.consumeEscapedCharacter0(scanner);
+          continue;
+        }
+        if (A._isInt(_0_0)) {
+          if (_0_0 !== 95) {
+            if (!(_0_0 >= 97 && _0_0 <= 122))
+              t2 = _0_0 >= 65 && _0_0 <= 90;
+            else
+              t2 = true;
+            t2 = t2 || _0_0 >= 128;
+          } else
+            t2 = true;
+          if (!t2)
+            t2 = _0_0 >= 48 && _0_0 <= 57 || _0_0 === 45;
+          else
+            t2 = true;
+        } else
+          t2 = false;
+        if (t2) {
+          scanner.readChar$0();
+          continue;
+        }
+        break;
+      }
+    },
+    validateUrlScheme(scheme) {
+      var t1 = $.$get$_urlSchemeRegExp();
+      if (!t1._nativeRegExp.test(scheme))
+        A.jsThrow(new self.Error('"' + scheme + '" isn\'t a valid URL scheme (for example "file").'));
+    },
+    unwrapValue(object) {
+      var value;
+      if (object != null) {
+        if (object instanceof A.Value0)
+          return object;
+        value = object.dartValue;
+        if (value != null && value instanceof A.Value0)
+          return value;
+        if (object instanceof self.Error)
+          throw A.wrapException(object);
+      }
+      throw A.wrapException(A.S(object) + " must be a Sass value type.");
+    },
+    wrapValue(value) {
+      var t1;
+      $label0$0: {
+        if (value instanceof A.SassColor0) {
+          t1 = A.callConstructor($.$get$legacyColorClass(), [null, null, null, null, value]);
+          break $label0$0;
+        }
+        if (value instanceof A.SassList0) {
+          t1 = A.callConstructor($.$get$legacyListClass(), [null, null, value]);
+          break $label0$0;
+        }
+        if (value instanceof A.SassMap0) {
+          t1 = A.callConstructor($.$get$legacyMapClass(), [null, value]);
+          break $label0$0;
+        }
+        if (value instanceof A.SassNumber0) {
+          t1 = A.callConstructor($.$get$legacyNumberClass(), [null, null, value]);
+          break $label0$0;
+        }
+        if (value instanceof A.SassString0) {
+          t1 = A.callConstructor($.$get$legacyStringClass(), [null, value]);
+          break $label0$0;
+        }
+        t1 = value;
+        break $label0$0;
+      }
+      return t1;
+    }
+  },
+  B = {};
+  var holders = [A, J, B];
+  var $ = {};
+  A.JS_CONST.prototype = {};
+  J.Interceptor.prototype = {
+    $eq(receiver, other) {
+      return receiver === other;
+    },
+    get$hashCode(receiver) {
+      return A.Primitives_objectHashCode(receiver);
+    },
+    toString$0(receiver) {
+      return "Instance of '" + A.Primitives_objectTypeName(receiver) + "'";
+    },
+    noSuchMethod$1(receiver, invocation) {
+      throw A.wrapException(A.NoSuchMethodError_NoSuchMethodError$withInvocation(receiver, invocation));
+    },
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(A._instanceTypeFromConstructor(this));
+    }
+  };
+  J.JSBool.prototype = {
+    toString$0(receiver) {
+      return String(receiver);
+    },
+    get$hashCode(receiver) {
+      return receiver ? 519018 : 218159;
+    },
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(type$.bool);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isbool: 1
+  };
+  J.JSNull.prototype = {
+    $eq(receiver, other) {
+      return null == other;
+    },
+    toString$0(receiver) {
+      return "null";
+    },
+    get$hashCode(receiver) {
+      return 0;
+    },
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(type$.Null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isNull: 1
+  };
+  J.JavaScriptObject.prototype = {};
+  J.LegacyJavaScriptObject.prototype = {
+    get$hashCode(receiver) {
+      return 0;
+    },
+    toString$0(receiver) {
+      return String(receiver);
+    },
+    $isPromise: 1,
+    $isJsSystemError: 1,
+    $isImmutableList: 1,
+    $is_Channels: 1,
+    $is_NodeSassColor: 1,
+    $isCompileOptions: 1,
+    $isCompileStringOptions: 1,
+    $isNodeCompileResult: 1,
+    $isDeprecation1: 1,
+    $is_NodeException: 1,
+    $isFiber: 1,
+    $isJSFunction0: 1,
+    $isImmutableList0: 1,
+    $isImmutableMap0: 1,
+    $isJSImporter: 1,
+    $isJSImporterResult: 1,
+    $isNodeImporterResult0: 1,
+    $is_ConstructorOptions: 1,
+    $is_NodeSassList: 1,
+    $isWarnOptions: 1,
+    $isDebugOptions: 1,
+    $is_NodeSassMap: 1,
+    $is_ConstructorOptions0: 1,
+    $is_NodeSassNumber: 1,
+    $isJSClass0: 1,
+    $isRenderContextOptions0: 1,
+    $isRenderOptions: 1,
+    $isRenderResult: 1,
+    $is_ConstructorOptions1: 1,
+    $is_NodeSassString: 1,
+    $isJSUrl0: 1,
+    get$isTTY(obj) {
+      return obj.isTTY;
+    },
+    get$write(obj) {
+      return obj.write;
+    },
+    write$1(receiver, p0) {
+      return receiver.write(p0);
+    },
+    createInterface$1(receiver, p0) {
+      return receiver.createInterface(p0);
+    },
+    on$2(receiver, p0, p1) {
+      return receiver.on(p0, p1);
+    },
+    get$close(obj) {
+      return obj.close;
+    },
+    close$0(receiver) {
+      return receiver.close();
+    },
+    setPrompt$1(receiver, p0) {
+      return receiver.setPrompt(p0);
+    },
+    get$length(obj) {
+      return obj.length;
+    },
+    toString$0(receiver) {
+      return receiver.toString();
+    },
+    get$debug(obj) {
+      return obj.debug;
+    },
+    debug$2(receiver, p0, p1) {
+      return receiver.debug(p0, p1);
+    },
+    get$error(obj) {
+      return obj.error;
+    },
+    error$1(receiver, p0) {
+      return receiver.error(p0);
+    },
+    error$2(receiver, p0, p1) {
+      return receiver.error(p0, p1);
+    },
+    log$1(receiver, p0) {
+      return receiver.log(p0);
+    },
+    get$warn(obj) {
+      return obj.warn;
+    },
+    warn$1(receiver, p0) {
+      return receiver.warn(p0);
+    },
+    warn$2(receiver, p0, p1) {
+      return receiver.warn(p0, p1);
+    },
+    existsSync$1(receiver, p0) {
+      return receiver.existsSync(p0);
+    },
+    mkdirSync$1(receiver, p0) {
+      return receiver.mkdirSync(p0);
+    },
+    readdirSync$1(receiver, p0) {
+      return receiver.readdirSync(p0);
+    },
+    readFileSync$2(receiver, p0, p1) {
+      return receiver.readFileSync(p0, p1);
+    },
+    statSync$1(receiver, p0) {
+      return receiver.statSync(p0);
+    },
+    unlinkSync$1(receiver, p0) {
+      return receiver.unlinkSync(p0);
+    },
+    watch$2(receiver, p0, p1) {
+      return receiver.watch(p0, p1);
+    },
+    writeFileSync$2(receiver, p0, p1) {
+      return receiver.writeFileSync(p0, p1);
+    },
+    get$path(obj) {
+      return obj.path;
+    },
+    isDirectory$0(receiver) {
+      return receiver.isDirectory();
+    },
+    isFile$0(receiver) {
+      return receiver.isFile();
+    },
+    get$mtime(obj) {
+      return obj.mtime;
+    },
+    then$1$1(receiver, p0) {
+      return receiver.then(p0);
+    },
+    then$2(receiver, p0, p1) {
+      return receiver.then(p0, p1);
+    },
+    getTime$0(receiver) {
+      return receiver.getTime();
+    },
+    get$message(obj) {
+      return obj.message;
+    },
+    message$1(receiver, p0) {
+      return receiver.message(p0);
+    },
+    get$filename(obj) {
+      return obj.filename;
+    },
+    get$id(obj) {
+      return obj.id;
+    },
+    get$code(obj) {
+      return obj.code;
+    },
+    get$syscall(obj) {
+      return obj.syscall;
+    },
+    get$argv(obj) {
+      return obj.argv;
+    },
+    get$env(obj) {
+      return obj.env;
+    },
+    get$exitCode(obj) {
+      return obj.exitCode;
+    },
+    set$exitCode(obj, v) {
+      return obj.exitCode = v;
+    },
+    get$platform(obj) {
+      return obj.platform;
+    },
+    get$release(obj) {
+      return obj.release;
+    },
+    get$stderr(obj) {
+      return obj.stderr;
+    },
+    get$stdin(obj) {
+      return obj.stdin;
+    },
+    get$stdout(obj) {
+      return obj.stdout;
+    },
+    get$name(obj) {
+      return obj.name;
+    },
+    push$1(receiver, p0) {
+      return receiver.push(p0);
+    },
+    call$0(receiver) {
+      return receiver.call();
+    },
+    call$1(receiver, p0) {
+      return receiver.call(p0);
+    },
+    call$2(receiver, p0, p1) {
+      return receiver.call(p0, p1);
+    },
+    call$3$1(receiver, p0) {
+      return receiver.call(p0);
+    },
+    call$2$1(receiver, p0) {
+      return receiver.call(p0);
+    },
+    call$1$1(receiver, p0) {
+      return receiver.call(p0);
+    },
+    call$3(receiver, p0, p1, p2) {
+      return receiver.call(p0, p1, p2);
+    },
+    call$3$3(receiver, p0, p1, p2) {
+      return receiver.call(p0, p1, p2);
+    },
+    call$2$2(receiver, p0, p1) {
+      return receiver.call(p0, p1);
+    },
+    call$2$0(receiver) {
+      return receiver.call();
+    },
+    call$1$0(receiver) {
+      return receiver.call();
+    },
+    call$1$2(receiver, p0, p1) {
+      return receiver.call(p0, p1);
+    },
+    call$2$3(receiver, p0, p1, p2) {
+      return receiver.call(p0, p1, p2);
+    },
+    apply$2(receiver, p0, p1) {
+      return receiver.apply(p0, p1);
+    },
+    toArray$0(receiver) {
+      return receiver.toArray();
+    },
+    asMutable$0(receiver) {
+      return receiver.asMutable();
+    },
+    asImmutable$0(receiver) {
+      return receiver.asImmutable();
+    },
+    $set$2(receiver, p0, p1) {
+      return receiver.set(p0, p1);
+    },
+    forEach$1(receiver, p0) {
+      return receiver.forEach(p0);
+    },
+    get$file(obj) {
+      return obj.file;
+    },
+    get$contents(obj) {
+      return obj.contents;
+    },
+    get$options(obj) {
+      return obj.options;
+    },
+    get$data(obj) {
+      return obj.data;
+    },
+    get$includePaths(obj) {
+      return obj.includePaths;
+    },
+    get$style(obj) {
+      return obj.style;
+    },
+    get$indentType(obj) {
+      return obj.indentType;
+    },
+    get$indentWidth(obj) {
+      return obj.indentWidth;
+    },
+    get$linefeed(obj) {
+      return obj.linefeed;
+    },
+    set$context(obj, v) {
+      return obj.context = v;
+    },
+    createRequire$1(receiver, p0) {
+      return receiver.createRequire(p0);
+    },
+    resolve$1(receiver, p0) {
+      return receiver.resolve(p0);
+    },
+    get$$prototype(obj) {
+      return obj.prototype;
+    },
+    get$red(obj) {
+      return obj.red;
+    },
+    get$green(obj) {
+      return obj.green;
+    },
+    get$blue(obj) {
+      return obj.blue;
+    },
+    get$hue(obj) {
+      return obj.hue;
+    },
+    get$saturation(obj) {
+      return obj.saturation;
+    },
+    get$lightness(obj) {
+      return obj.lightness;
+    },
+    get$whiteness(obj) {
+      return obj.whiteness;
+    },
+    get$blackness(obj) {
+      return obj.blackness;
+    },
+    get$alpha(obj) {
+      return obj.alpha;
+    },
+    get$dartValue(obj) {
+      return obj.dartValue;
+    },
+    set$dartValue(obj, v) {
+      return obj.dartValue = v;
+    },
+    get$alertAscii(obj) {
+      return obj.alertAscii;
+    },
+    get$alertColor(obj) {
+      return obj.alertColor;
+    },
+    get$loadPaths(obj) {
+      return obj.loadPaths;
+    },
+    get$quietDeps(obj) {
+      return obj.quietDeps;
+    },
+    get$verbose(obj) {
+      return obj.verbose;
+    },
+    get$charset(obj) {
+      return obj.charset;
+    },
+    get$sourceMap(obj) {
+      return obj.sourceMap;
+    },
+    get$sourceMapIncludeSources(obj) {
+      return obj.sourceMapIncludeSources;
+    },
+    get$logger(obj) {
+      return obj.logger;
+    },
+    get$importers(obj) {
+      return obj.importers;
+    },
+    get$functions(obj) {
+      return obj.functions;
+    },
+    get$fatalDeprecations(obj) {
+      return obj.fatalDeprecations;
+    },
+    get$silenceDeprecations(obj) {
+      return obj.silenceDeprecations;
+    },
+    get$futureDeprecations(obj) {
+      return obj.futureDeprecations;
+    },
+    get$syntax(obj) {
+      return obj.syntax;
+    },
+    get$url(obj) {
+      return obj.url;
+    },
+    get$importer(obj) {
+      return obj.importer;
+    },
+    get$_dartException(obj) {
+      return obj._dartException;
+    },
+    set$renderSync(obj, v) {
+      return obj.renderSync = v;
+    },
+    set$compileString(obj, v) {
+      return obj.compileString = v;
+    },
+    set$compileStringAsync(obj, v) {
+      return obj.compileStringAsync = v;
+    },
+    set$compile(obj, v) {
+      return obj.compile = v;
+    },
+    set$compileAsync(obj, v) {
+      return obj.compileAsync = v;
+    },
+    set$initCompiler(obj, v) {
+      return obj.initCompiler = v;
+    },
+    set$initAsyncCompiler(obj, v) {
+      return obj.initAsyncCompiler = v;
+    },
+    set$Compiler(obj, v) {
+      return obj.Compiler = v;
+    },
+    set$AsyncCompiler(obj, v) {
+      return obj.AsyncCompiler = v;
+    },
+    set$info(obj, v) {
+      return obj.info = v;
+    },
+    set$Exception(obj, v) {
+      return obj.Exception = v;
+    },
+    set$Logger(obj, v) {
+      return obj.Logger = v;
+    },
+    set$NodePackageImporter(obj, v) {
+      return obj.NodePackageImporter = v;
+    },
+    set$deprecations(obj, v) {
+      return obj.deprecations = v;
+    },
+    set$Version(obj, v) {
+      return obj.Version = v;
+    },
+    set$Value(obj, v) {
+      return obj.Value = v;
+    },
+    set$SassArgumentList(obj, v) {
+      return obj.SassArgumentList = v;
+    },
+    set$SassCalculation(obj, v) {
+      return obj.SassCalculation = v;
+    },
+    set$CalculationOperation(obj, v) {
+      return obj.CalculationOperation = v;
+    },
+    set$CalculationInterpolation(obj, v) {
+      return obj.CalculationInterpolation = v;
+    },
+    set$SassBoolean(obj, v) {
+      return obj.SassBoolean = v;
+    },
+    set$SassColor(obj, v) {
+      return obj.SassColor = v;
+    },
+    set$SassFunction(obj, v) {
+      return obj.SassFunction = v;
+    },
+    set$SassMixin(obj, v) {
+      return obj.SassMixin = v;
+    },
+    set$SassList(obj, v) {
+      return obj.SassList = v;
+    },
+    set$SassMap(obj, v) {
+      return obj.SassMap = v;
+    },
+    set$SassNumber(obj, v) {
+      return obj.SassNumber = v;
+    },
+    set$SassString(obj, v) {
+      return obj.SassString = v;
+    },
+    set$sassNull(obj, v) {
+      return obj.sassNull = v;
+    },
+    set$sassTrue(obj, v) {
+      return obj.sassTrue = v;
+    },
+    set$sassFalse(obj, v) {
+      return obj.sassFalse = v;
+    },
+    set$render(obj, v) {
+      return obj.render = v;
+    },
+    set$types(obj, v) {
+      return obj.types = v;
+    },
+    set$NULL(obj, v) {
+      return obj.NULL = v;
+    },
+    set$TRUE(obj, v) {
+      return obj.TRUE = v;
+    },
+    set$FALSE(obj, v) {
+      return obj.FALSE = v;
+    },
+    get$current(obj) {
+      return obj.current;
+    },
+    yield$0(receiver) {
+      return receiver.yield();
+    },
+    run$1$1(receiver, p0) {
+      return receiver.run(p0);
+    },
+    run$1(receiver, p0) {
+      return receiver.run(p0);
+    },
+    run$0(receiver) {
+      return receiver.run();
+    },
+    get$canonicalize(obj) {
+      return obj.canonicalize;
+    },
+    canonicalize$1(receiver, p0) {
+      return receiver.canonicalize(p0);
+    },
+    get$load(obj) {
+      return obj.load;
+    },
+    load$1(receiver, p0) {
+      return receiver.load(p0);
+    },
+    get$findFileUrl(obj) {
+      return obj.findFileUrl;
+    },
+    get$nonCanonicalScheme(obj) {
+      return obj.nonCanonicalScheme;
+    },
+    get$sourceMapUrl(obj) {
+      return obj.sourceMapUrl;
+    },
+    get$separator(obj) {
+      return obj.separator;
+    },
+    get$brackets(obj) {
+      return obj.brackets;
+    },
+    get$numeratorUnits(obj) {
+      return obj.numeratorUnits;
+    },
+    get$denominatorUnits(obj) {
+      return obj.denominatorUnits;
+    },
+    get$pkgImporter(obj) {
+      return obj.pkgImporter;
+    },
+    get$indentedSyntax(obj) {
+      return obj.indentedSyntax;
+    },
+    get$omitSourceMapUrl(obj) {
+      return obj.omitSourceMapUrl;
+    },
+    get$outFile(obj) {
+      return obj.outFile;
+    },
+    get$outputStyle(obj) {
+      return obj.outputStyle;
+    },
+    get$fiber(obj) {
+      return obj.fiber;
+    },
+    get$sourceMapContents(obj) {
+      return obj.sourceMapContents;
+    },
+    get$sourceMapEmbed(obj) {
+      return obj.sourceMapEmbed;
+    },
+    get$sourceMapRoot(obj) {
+      return obj.sourceMapRoot;
+    },
+    set$cli_pkg_main_0_(obj, v) {
+      return obj.cli_pkg_main_0_ = v;
+    },
+    get$quotes(obj) {
+      return obj.quotes;
+    }
+  };
+  J.PlainJavaScriptObject.prototype = {};
+  J.UnknownJavaScriptObject.prototype = {};
+  J.JavaScriptFunction.prototype = {
+    toString$0(receiver) {
+      var dartClosure = receiver[$.$get$DART_CLOSURE_PROPERTY_NAME()];
+      if (dartClosure == null)
+        return this.super$LegacyJavaScriptObject$toString(receiver);
+      return "JavaScript function for " + A.S(J.toString$0$(dartClosure));
+    },
+    $isFunction: 1
+  };
+  J.JavaScriptBigInt.prototype = {
+    get$hashCode(receiver) {
+      return 0;
+    },
+    toString$0(receiver) {
+      return String(receiver);
+    }
+  };
+  J.JavaScriptSymbol.prototype = {
+    get$hashCode(receiver) {
+      return 0;
+    },
+    toString$0(receiver) {
+      return String(receiver);
+    }
+  };
+  J.JSArray.prototype = {
+    cast$1$0(receiver, $R) {
+      return new A.CastList(receiver, A._arrayInstanceType(receiver)._eval$1("@<1>")._bind$1($R)._eval$1("CastList<1,2>"));
+    },
+    add$1(receiver, value) {
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("add"));
+      receiver.push(value);
+    },
+    removeAt$1(receiver, index) {
+      var t1;
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("removeAt"));
+      t1 = receiver.length;
+      if (index >= t1)
+        throw A.wrapException(A.RangeError$value(index, null, null));
+      return receiver.splice(index, 1)[0];
+    },
+    insert$2(receiver, index, value) {
+      var t1;
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("insert"));
+      t1 = receiver.length;
+      if (index > t1)
+        throw A.wrapException(A.RangeError$value(index, null, null));
+      receiver.splice(index, 0, value);
+    },
+    insertAll$2(receiver, index, iterable) {
+      var insertionLength, end;
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("insertAll"));
+      A.RangeError_checkValueInInterval(index, 0, receiver.length, "index");
+      if (!type$.EfficientLengthIterable_dynamic._is(iterable))
+        iterable = J.toList$0$ax(iterable);
+      insertionLength = J.get$length$asx(iterable);
+      receiver.length = receiver.length + insertionLength;
+      end = index + insertionLength;
+      this.setRange$4(receiver, end, receiver.length, receiver, index);
+      this.setRange$3(receiver, index, end, iterable);
+    },
+    removeLast$0(receiver) {
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("removeLast"));
+      if (receiver.length === 0)
+        throw A.wrapException(A.diagnoseIndexError(receiver, -1));
+      return receiver.pop();
+    },
+    _removeWhere$2(receiver, test, removeMatching) {
+      var i, element, t1, retained = [],
+        end = receiver.length;
+      for (i = 0; i < end; ++i) {
+        element = receiver[i];
+        if (!test.call$1(element))
+          retained.push(element);
+        if (receiver.length !== end)
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      t1 = retained.length;
+      if (t1 === end)
+        return;
+      this.set$length(receiver, t1);
+      for (i = 0; i < retained.length; ++i)
+        receiver[i] = retained[i];
+    },
+    where$1(receiver, f) {
+      return new A.WhereIterable(receiver, f, A._arrayInstanceType(receiver)._eval$1("WhereIterable<1>"));
+    },
+    expand$1$1(receiver, f, $T) {
+      return new A.ExpandIterable(receiver, f, A._arrayInstanceType(receiver)._eval$1("@<1>")._bind$1($T)._eval$1("ExpandIterable<1,2>"));
+    },
+    addAll$1(receiver, collection) {
+      var t1;
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("addAll"));
+      if (Array.isArray(collection)) {
+        this._addAllFromArray$1(receiver, collection);
+        return;
+      }
+      for (t1 = J.get$iterator$ax(collection); t1.moveNext$0();)
+        receiver.push(t1.get$current(t1));
+    },
+    _addAllFromArray$1(receiver, array) {
+      var i,
+        len = array.length;
+      if (len === 0)
+        return;
+      if (receiver === array)
+        throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      for (i = 0; i < len; ++i)
+        receiver.push(array[i]);
+    },
+    clear$0(receiver) {
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("clear"));
+      receiver.length = 0;
+    },
+    map$1$1(receiver, f, $T) {
+      return new A.MappedListIterable(receiver, f, A._arrayInstanceType(receiver)._eval$1("@<1>")._bind$1($T)._eval$1("MappedListIterable<1,2>"));
+    },
+    join$1(receiver, separator) {
+      var i,
+        list = A.List_List$filled(receiver.length, "", false, type$.String);
+      for (i = 0; i < receiver.length; ++i)
+        list[i] = A.S(receiver[i]);
+      return list.join(separator);
+    },
+    join$0(receiver) {
+      return this.join$1(receiver, "");
+    },
+    take$1(receiver, n) {
+      return A.SubListIterable$(receiver, 0, A.checkNotNullable(n, "count", type$.int), A._arrayInstanceType(receiver)._precomputed1);
+    },
+    skip$1(receiver, n) {
+      return A.SubListIterable$(receiver, n, null, A._arrayInstanceType(receiver)._precomputed1);
+    },
+    fold$1$2(receiver, initialValue, combine) {
+      var value, i,
+        $length = receiver.length;
+      for (value = initialValue, i = 0; i < $length; ++i) {
+        value = combine.call$2(value, receiver[i]);
+        if (receiver.length !== $length)
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      return value;
+    },
+    fold$2(receiver, initialValue, combine) {
+      return this.fold$1$2(receiver, initialValue, combine, type$.dynamic);
+    },
+    elementAt$1(receiver, index) {
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      var end0 = receiver.length;
+      if (start > end0)
+        throw A.wrapException(A.RangeError$range(start, 0, end0, "start", null));
+      if (end == null)
+        end = end0;
+      else if (end < start || end > end0)
+        throw A.wrapException(A.RangeError$range(end, start, end0, "end", null));
+      if (start === end)
+        return A._setArrayType([], A._arrayInstanceType(receiver));
+      return A._setArrayType(receiver.slice(start, end), A._arrayInstanceType(receiver));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    getRange$2(receiver, start, end) {
+      A.RangeError_checkValidRange(start, end, receiver.length);
+      return A.SubListIterable$(receiver, start, end, A._arrayInstanceType(receiver)._precomputed1);
+    },
+    get$first(receiver) {
+      if (receiver.length > 0)
+        return receiver[0];
+      throw A.wrapException(A.IterableElementError_noElement());
+    },
+    get$last(receiver) {
+      var t1 = receiver.length;
+      if (t1 > 0)
+        return receiver[t1 - 1];
+      throw A.wrapException(A.IterableElementError_noElement());
+    },
+    get$single(receiver) {
+      var t1 = receiver.length;
+      if (t1 === 1)
+        return receiver[0];
+      if (t1 === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      throw A.wrapException(A.IterableElementError_tooMany());
+    },
+    removeRange$2(receiver, start, end) {
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("removeRange"));
+      A.RangeError_checkValidRange(start, end, receiver.length);
+      receiver.splice(start, end - start);
+    },
+    setRange$4(receiver, start, end, iterable, skipCount) {
+      var $length, otherList, otherStart, t1, i;
+      if (!!receiver.immutable$list)
+        A.throwExpression(A.UnsupportedError$("setRange"));
+      A.RangeError_checkValidRange(start, end, receiver.length);
+      $length = end - start;
+      if ($length === 0)
+        return;
+      A.RangeError_checkNotNegative(skipCount, "skipCount");
+      if (type$.List_dynamic._is(iterable)) {
+        otherList = iterable;
+        otherStart = skipCount;
+      } else {
+        otherList = J.skip$1$ax(iterable, skipCount).toList$1$growable(0, false);
+        otherStart = 0;
+      }
+      t1 = J.getInterceptor$asx(otherList);
+      if (otherStart + $length > t1.get$length(otherList))
+        throw A.wrapException(A.IterableElementError_tooFew());
+      if (otherStart < start)
+        for (i = $length - 1; i >= 0; --i)
+          receiver[start + i] = t1.$index(otherList, otherStart + i);
+      else
+        for (i = 0; i < $length; ++i)
+          receiver[start + i] = t1.$index(otherList, otherStart + i);
+    },
+    setRange$3(receiver, start, end, iterable) {
+      return this.setRange$4(receiver, start, end, iterable, 0);
+    },
+    fillRange$3(receiver, start, end, fillValue) {
+      var i;
+      if (!!receiver.immutable$list)
+        A.throwExpression(A.UnsupportedError$("fill range"));
+      A.RangeError_checkValidRange(start, end, receiver.length);
+      A._arrayInstanceType(receiver)._precomputed1._as(fillValue);
+      for (i = start; i < end; ++i)
+        receiver[i] = fillValue;
+    },
+    any$1(receiver, test) {
+      var i,
+        end = receiver.length;
+      for (i = 0; i < end; ++i) {
+        if (test.call$1(receiver[i]))
+          return true;
+        if (receiver.length !== end)
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      return false;
+    },
+    every$1(receiver, test) {
+      var i,
+        end = receiver.length;
+      for (i = 0; i < end; ++i) {
+        if (!test.call$1(receiver[i]))
+          return false;
+        if (receiver.length !== end)
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      return true;
+    },
+    get$reversed(receiver) {
+      return new A.ReversedListIterable(receiver, A._arrayInstanceType(receiver)._eval$1("ReversedListIterable<1>"));
+    },
+    sort$1(receiver, compare) {
+      var len, a, b, undefineds, i;
+      if (!!receiver.immutable$list)
+        A.throwExpression(A.UnsupportedError$("sort"));
+      len = receiver.length;
+      if (len < 2)
+        return;
+      if (compare == null)
+        compare = J._interceptors_JSArray__compareAny$closure();
+      if (len === 2) {
+        a = receiver[0];
+        b = receiver[1];
+        if (compare.call$2(a, b) > 0) {
+          receiver[0] = b;
+          receiver[1] = a;
+        }
+        return;
+      }
+      if (A._arrayInstanceType(receiver)._precomputed1._is(null)) {
+        for (undefineds = 0, i = 0; i < receiver.length; ++i)
+          if (receiver[i] === void 0) {
+            receiver[i] = null;
+            ++undefineds;
+          }
+      } else
+        undefineds = 0;
+      receiver.sort(A.convertDartClosureToJS(compare, 2));
+      if (undefineds > 0)
+        this._replaceSomeNullsWithUndefined$1(receiver, undefineds);
+    },
+    sort$0(receiver) {
+      return this.sort$1(receiver, null);
+    },
+    _replaceSomeNullsWithUndefined$1(receiver, count) {
+      var i0,
+        i = receiver.length;
+      for (; i0 = i - 1, i > 0; i = i0)
+        if (receiver[i0] === null) {
+          receiver[i0] = void 0;
+          --count;
+          if (count === 0)
+            break;
+        }
+    },
+    indexOf$1(receiver, element) {
+      var i,
+        $length = receiver.length;
+      if (0 >= $length)
+        return -1;
+      for (i = 0; i < $length; ++i)
+        if (J.$eq$(receiver[i], element))
+          return i;
+      return -1;
+    },
+    contains$1(receiver, other) {
+      var i;
+      for (i = 0; i < receiver.length; ++i)
+        if (J.$eq$(receiver[i], other))
+          return true;
+      return false;
+    },
+    get$isEmpty(receiver) {
+      return receiver.length === 0;
+    },
+    get$isNotEmpty(receiver) {
+      return receiver.length !== 0;
+    },
+    toString$0(receiver) {
+      return A.Iterable_iterableToFullString(receiver, "[", "]");
+    },
+    toList$1$growable(receiver, growable) {
+      var t1 = A._setArrayType(receiver.slice(0), A._arrayInstanceType(receiver));
+      return t1;
+    },
+    toList$0(receiver) {
+      return this.toList$1$growable(receiver, true);
+    },
+    toSet$0(receiver) {
+      return A.LinkedHashSet_LinkedHashSet$from(receiver, A._arrayInstanceType(receiver)._precomputed1);
+    },
+    get$iterator(receiver) {
+      return new J.ArrayIterator(receiver, receiver.length, A._arrayInstanceType(receiver)._eval$1("ArrayIterator<1>"));
+    },
+    get$hashCode(receiver) {
+      return A.Primitives_objectHashCode(receiver);
+    },
+    get$length(receiver) {
+      return receiver.length;
+    },
+    set$length(receiver, newLength) {
+      if (!!receiver.fixed$length)
+        A.throwExpression(A.UnsupportedError$("set length"));
+      if (newLength < 0)
+        throw A.wrapException(A.RangeError$range(newLength, 0, null, "newLength", null));
+      if (newLength > receiver.length)
+        A._arrayInstanceType(receiver)._precomputed1._as(null);
+      receiver.length = newLength;
+    },
+    $index(receiver, index) {
+      if (!(index >= 0 && index < receiver.length))
+        throw A.wrapException(A.diagnoseIndexError(receiver, index));
+      return receiver[index];
+    },
+    $indexSet(receiver, index, value) {
+      if (!!receiver.immutable$list)
+        A.throwExpression(A.UnsupportedError$("indexed set"));
+      if (!(index >= 0 && index < receiver.length))
+        throw A.wrapException(A.diagnoseIndexError(receiver, index));
+      receiver[index] = value;
+    },
+    $add(receiver, other) {
+      var t1 = A.List_List$of(receiver, true, A._arrayInstanceType(receiver)._precomputed1);
+      this.addAll$1(t1, other);
+      return t1;
+    },
+    indexWhere$1(receiver, test) {
+      var i;
+      if (0 >= receiver.length)
+        return -1;
+      for (i = 0; i < receiver.length; ++i)
+        if (test.call$1(receiver[i]))
+          return i;
+      return -1;
+    },
+    $isEfficientLengthIterable: 1,
+    $isIterable: 1,
+    $isList: 1
+  };
+  J.JSUnmodifiableArray.prototype = {};
+  J.ArrayIterator.prototype = {
+    get$current(_) {
+      var t1 = this._current;
+      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
+    },
+    moveNext$0() {
+      var t2, _this = this,
+        t1 = _this._iterable,
+        $length = t1.length;
+      if (_this._length !== $length)
+        throw A.wrapException(A.throwConcurrentModificationError(t1));
+      t2 = _this._index;
+      if (t2 >= $length) {
+        _this._current = null;
+        return false;
+      }
+      _this._current = t1[t2];
+      _this._index = t2 + 1;
+      return true;
+    }
+  };
+  J.JSNumber.prototype = {
+    compareTo$1(receiver, b) {
+      var bIsNegative;
+      if (receiver < b)
+        return -1;
+      else if (receiver > b)
+        return 1;
+      else if (receiver === b) {
+        if (receiver === 0) {
+          bIsNegative = this.get$isNegative(b);
+          if (this.get$isNegative(receiver) === bIsNegative)
+            return 0;
+          if (this.get$isNegative(receiver))
+            return -1;
+          return 1;
+        }
+        return 0;
+      } else if (isNaN(receiver)) {
+        if (isNaN(b))
+          return 0;
+        return 1;
+      } else
+        return -1;
+    },
+    get$isNegative(receiver) {
+      return receiver === 0 ? 1 / receiver < 0 : receiver < 0;
+    },
+    get$sign(receiver) {
+      var t1;
+      if (receiver > 0)
+        t1 = 1;
+      else
+        t1 = receiver < 0 ? -1 : receiver;
+      return t1;
+    },
+    ceil$0(receiver) {
+      var truncated, d;
+      if (receiver >= 0) {
+        if (receiver <= 2147483647) {
+          truncated = receiver | 0;
+          return receiver === truncated ? truncated : truncated + 1;
+        }
+      } else if (receiver >= -2147483648)
+        return receiver | 0;
+      d = Math.ceil(receiver);
+      if (isFinite(d))
+        return d;
+      throw A.wrapException(A.UnsupportedError$("" + receiver + ".ceil()"));
+    },
+    floor$0(receiver) {
+      var truncated, d;
+      if (receiver >= 0) {
+        if (receiver <= 2147483647)
+          return receiver | 0;
+      } else if (receiver >= -2147483648) {
+        truncated = receiver | 0;
+        return receiver === truncated ? truncated : truncated - 1;
+      }
+      d = Math.floor(receiver);
+      if (isFinite(d))
+        return d;
+      throw A.wrapException(A.UnsupportedError$("" + receiver + ".floor()"));
+    },
+    round$0(receiver) {
+      if (receiver > 0) {
+        if (receiver !== 1 / 0)
+          return Math.round(receiver);
+      } else if (receiver > -1 / 0)
+        return 0 - Math.round(0 - receiver);
+      throw A.wrapException(A.UnsupportedError$("" + receiver + ".round()"));
+    },
+    clamp$2(receiver, lowerLimit, upperLimit) {
+      if (B.JSInt_methods.compareTo$1(lowerLimit, upperLimit) > 0)
+        throw A.wrapException(A.argumentErrorValue(lowerLimit));
+      if (this.compareTo$1(receiver, lowerLimit) < 0)
+        return lowerLimit;
+      if (this.compareTo$1(receiver, upperLimit) > 0)
+        return upperLimit;
+      return receiver;
+    },
+    toRadixString$1(receiver, radix) {
+      var result, match, exponent, t1;
+      if (radix < 2 || radix > 36)
+        throw A.wrapException(A.RangeError$range(radix, 2, 36, "radix", null));
+      result = receiver.toString(radix);
+      if (result.charCodeAt(result.length - 1) !== 41)
+        return result;
+      match = /^([\da-z]+)(?:\.([\da-z]+))?\(e\+(\d+)\)$/.exec(result);
+      if (match == null)
+        A.throwExpression(A.UnsupportedError$("Unexpected toString result: " + result));
+      result = match[1];
+      exponent = +match[3];
+      t1 = match[2];
+      if (t1 != null) {
+        result += t1;
+        exponent -= t1.length;
+      }
+      return result + B.JSString_methods.$mul("0", exponent);
+    },
+    toString$0(receiver) {
+      if (receiver === 0 && 1 / receiver < 0)
+        return "-0.0";
+      else
+        return "" + receiver;
+    },
+    get$hashCode(receiver) {
+      var absolute, floorLog2, factor, scaled,
+        intValue = receiver | 0;
+      if (receiver === intValue)
+        return intValue & 536870911;
+      absolute = Math.abs(receiver);
+      floorLog2 = Math.log(absolute) / 0.6931471805599453 | 0;
+      factor = Math.pow(2, floorLog2);
+      scaled = absolute < 1 ? absolute / factor : factor / absolute;
+      return ((scaled * 9007199254740992 | 0) + (scaled * 3542243181176521 | 0)) * 599197 + floorLog2 * 1259 & 536870911;
+    },
+    $mod(receiver, other) {
+      var result = receiver % other;
+      if (result === 0)
+        return 0;
+      if (result > 0)
+        return result;
+      if (other < 0)
+        return result - other;
+      else
+        return result + other;
+    },
+    $tdiv(receiver, other) {
+      if ((receiver | 0) === receiver)
+        if (other >= 1 || other < -1)
+          return receiver / other | 0;
+      return this._tdivSlow$1(receiver, other);
+    },
+    _tdivFast$1(receiver, other) {
+      return (receiver | 0) === receiver ? receiver / other | 0 : this._tdivSlow$1(receiver, other);
+    },
+    _tdivSlow$1(receiver, other) {
+      var quotient = receiver / other;
+      if (quotient >= -2147483648 && quotient <= 2147483647)
+        return quotient | 0;
+      if (quotient > 0) {
+        if (quotient !== 1 / 0)
+          return Math.floor(quotient);
+      } else if (quotient > -1 / 0)
+        return Math.ceil(quotient);
+      throw A.wrapException(A.UnsupportedError$("Result of truncating division is " + A.S(quotient) + ": " + A.S(receiver) + " ~/ " + other));
+    },
+    _shrOtherPositive$1(receiver, other) {
+      var t1;
+      if (receiver > 0)
+        t1 = this._shrBothPositive$1(receiver, other);
+      else {
+        t1 = other > 31 ? 31 : other;
+        t1 = receiver >> t1 >>> 0;
+      }
+      return t1;
+    },
+    _shrReceiverPositive$1(receiver, other) {
+      if (0 > other)
+        throw A.wrapException(A.argumentErrorValue(other));
+      return this._shrBothPositive$1(receiver, other);
+    },
+    _shrBothPositive$1(receiver, other) {
+      return other > 31 ? 0 : receiver >>> other;
+    },
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(type$.num);
+    },
+    $isComparable: 1,
+    $isdouble: 1,
+    $isnum: 1
+  };
+  J.JSInt.prototype = {
+    get$sign(receiver) {
+      var t1;
+      if (receiver > 0)
+        t1 = 1;
+      else
+        t1 = receiver < 0 ? -1 : receiver;
+      return t1;
+    },
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(type$.int);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isint: 1
+  };
+  J.JSNumNotInt.prototype = {
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(type$.double);
+    },
+    $isTrustedGetRuntimeType: 1
+  };
+  J.JSString.prototype = {
+    codeUnitAt$1(receiver, index) {
+      if (index < 0)
+        throw A.wrapException(A.diagnoseIndexError(receiver, index));
+      if (index >= receiver.length)
+        A.throwExpression(A.diagnoseIndexError(receiver, index));
+      return receiver.charCodeAt(index);
+    },
+    allMatches$2(receiver, string, start) {
+      var t1 = string.length;
+      if (start > t1)
+        throw A.wrapException(A.RangeError$range(start, 0, t1, null, null));
+      return new A._StringAllMatchesIterable(string, receiver, start);
+    },
+    allMatches$1(receiver, string) {
+      return this.allMatches$2(receiver, string, 0);
+    },
+    matchAsPrefix$2(receiver, string, start) {
+      var t1, i, _null = null;
+      if (start < 0 || start > string.length)
+        throw A.wrapException(A.RangeError$range(start, 0, string.length, _null, _null));
+      t1 = receiver.length;
+      if (start + t1 > string.length)
+        return _null;
+      for (i = 0; i < t1; ++i)
+        if (string.charCodeAt(start + i) !== receiver.charCodeAt(i))
+          return _null;
+      return new A.StringMatch(start, receiver);
+    },
+    $add(receiver, other) {
+      return receiver + other;
+    },
+    endsWith$1(receiver, other) {
+      var otherLength = other.length,
+        t1 = receiver.length;
+      if (otherLength > t1)
+        return false;
+      return other === this.substring$1(receiver, t1 - otherLength);
+    },
+    replaceFirst$2(receiver, from, to) {
+      A.RangeError_checkValueInInterval(0, 0, receiver.length, "startIndex");
+      return A.stringReplaceFirstUnchecked(receiver, from, to, 0);
+    },
+    split$1(receiver, pattern) {
+      if (typeof pattern == "string")
+        return A._setArrayType(receiver.split(pattern), type$.JSArray_String);
+      else if (pattern instanceof A.JSSyntaxRegExp && pattern.get$_nativeAnchoredVersion().exec("").length - 2 === 0)
+        return A._setArrayType(receiver.split(pattern._nativeRegExp), type$.JSArray_String);
+      else
+        return this._defaultSplit$1(receiver, pattern);
+    },
+    replaceRange$3(receiver, start, end, replacement) {
+      var e = A.RangeError_checkValidRange(start, end, receiver.length);
+      return A.stringReplaceRangeUnchecked(receiver, start, e, replacement);
+    },
+    _defaultSplit$1(receiver, pattern) {
+      var t1, start, $length, match, matchStart, matchEnd,
+        result = A._setArrayType([], type$.JSArray_String);
+      for (t1 = J.allMatches$1$s(pattern, receiver), t1 = t1.get$iterator(t1), start = 0, $length = 1; t1.moveNext$0();) {
+        match = t1.get$current(t1);
+        matchStart = match.get$start(match);
+        matchEnd = match.get$end(match);
+        $length = matchEnd - matchStart;
+        if ($length === 0 && start === matchStart)
+          continue;
+        result.push(this.substring$2(receiver, start, matchStart));
+        start = matchEnd;
+      }
+      if (start < receiver.length || $length > 0)
+        result.push(this.substring$1(receiver, start));
+      return result;
+    },
+    startsWith$2(receiver, pattern, index) {
+      var endIndex;
+      if (index < 0 || index > receiver.length)
+        throw A.wrapException(A.RangeError$range(index, 0, receiver.length, null, null));
+      if (typeof pattern == "string") {
+        endIndex = index + pattern.length;
+        if (endIndex > receiver.length)
+          return false;
+        return pattern === receiver.substring(index, endIndex);
+      }
+      return J.matchAsPrefix$2$s(pattern, receiver, index) != null;
+    },
+    startsWith$1(receiver, pattern) {
+      return this.startsWith$2(receiver, pattern, 0);
+    },
+    substring$2(receiver, start, end) {
+      return receiver.substring(start, A.RangeError_checkValidRange(start, end, receiver.length));
+    },
+    substring$1(receiver, start) {
+      return this.substring$2(receiver, start, null);
+    },
+    trim$0(receiver) {
+      var startIndex, t1, endIndex0,
+        result = receiver.trim(),
+        endIndex = result.length;
+      if (endIndex === 0)
+        return result;
+      if (result.charCodeAt(0) === 133) {
+        startIndex = J.JSString__skipLeadingWhitespace(result, 1);
+        if (startIndex === endIndex)
+          return "";
+      } else
+        startIndex = 0;
+      t1 = endIndex - 1;
+      endIndex0 = result.charCodeAt(t1) === 133 ? J.JSString__skipTrailingWhitespace(result, t1) : endIndex;
+      if (startIndex === 0 && endIndex0 === endIndex)
+        return result;
+      return result.substring(startIndex, endIndex0);
+    },
+    trimLeft$0(receiver) {
+      var result = receiver.trimStart();
+      if (result.length === 0)
+        return result;
+      if (result.charCodeAt(0) !== 133)
+        return result;
+      return result.substring(J.JSString__skipLeadingWhitespace(result, 1));
+    },
+    trimRight$0(receiver) {
+      var t1,
+        result = receiver.trimEnd(),
+        endIndex = result.length;
+      if (endIndex === 0)
+        return result;
+      t1 = endIndex - 1;
+      if (result.charCodeAt(t1) !== 133)
+        return result;
+      return result.substring(0, J.JSString__skipTrailingWhitespace(result, t1));
+    },
+    $mul(receiver, times) {
+      var s, result;
+      if (0 >= times)
+        return "";
+      if (times === 1 || receiver.length === 0)
+        return receiver;
+      if (times !== times >>> 0)
+        throw A.wrapException(B.C_OutOfMemoryError);
+      for (s = receiver, result = ""; true;) {
+        if ((times & 1) === 1)
+          result = s + result;
+        times = times >>> 1;
+        if (times === 0)
+          break;
+        s += s;
+      }
+      return result;
+    },
+    padLeft$2(receiver, width, padding) {
+      var delta = width - receiver.length;
+      if (delta <= 0)
+        return receiver;
+      return this.$mul(padding, delta) + receiver;
+    },
+    padRight$1(receiver, width) {
+      var delta = width - receiver.length;
+      if (delta <= 0)
+        return receiver;
+      return receiver + this.$mul(" ", delta);
+    },
+    indexOf$2(receiver, pattern, start) {
+      var t1;
+      if (start < 0 || start > receiver.length)
+        throw A.wrapException(A.RangeError$range(start, 0, receiver.length, null, null));
+      t1 = receiver.indexOf(pattern, start);
+      return t1;
+    },
+    indexOf$1(receiver, pattern) {
+      return this.indexOf$2(receiver, pattern, 0);
+    },
+    lastIndexOf$2(receiver, pattern, start) {
+      var t1, t2, i;
+      if (start == null)
+        start = receiver.length;
+      else if (start < 0 || start > receiver.length)
+        throw A.wrapException(A.RangeError$range(start, 0, receiver.length, null, null));
+      if (typeof pattern == "string") {
+        t1 = pattern.length;
+        t2 = receiver.length;
+        if (start + t1 > t2)
+          start = t2 - t1;
+        return receiver.lastIndexOf(pattern, start);
+      }
+      for (t1 = J.getInterceptor$s(pattern), i = start; i >= 0; --i)
+        if (t1.matchAsPrefix$2(pattern, receiver, i) != null)
+          return i;
+      return -1;
+    },
+    lastIndexOf$1(receiver, pattern) {
+      return this.lastIndexOf$2(receiver, pattern, null);
+    },
+    contains$2(receiver, other, startIndex) {
+      var t1 = receiver.length;
+      if (startIndex > t1)
+        throw A.wrapException(A.RangeError$range(startIndex, 0, t1, null, null));
+      return A.stringContainsUnchecked(receiver, other, startIndex);
+    },
+    contains$1(receiver, other) {
+      return this.contains$2(receiver, other, 0);
+    },
+    compareTo$1(receiver, other) {
+      var t1;
+      if (receiver === other)
+        t1 = 0;
+      else
+        t1 = receiver < other ? -1 : 1;
+      return t1;
+    },
+    toString$0(receiver) {
+      return receiver;
+    },
+    get$hashCode(receiver) {
+      var t1, hash, i;
+      for (t1 = receiver.length, hash = 0, i = 0; i < t1; ++i) {
+        hash = hash + receiver.charCodeAt(i) & 536870911;
+        hash = hash + ((hash & 524287) << 10) & 536870911;
+        hash ^= hash >> 6;
+      }
+      hash = hash + ((hash & 67108863) << 3) & 536870911;
+      hash ^= hash >> 11;
+      return hash + ((hash & 16383) << 15) & 536870911;
+    },
+    get$runtimeType(receiver) {
+      return A.createRuntimeType(type$.String);
+    },
+    get$length(receiver) {
+      return receiver.length;
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isComparable: 1,
+    $isString: 1
+  };
+  A._CastIterableBase.prototype = {
+    get$iterator(_) {
+      var t1 = A._instanceType(this);
+      return new A.CastIterator(J.get$iterator$ax(this.get$_source()), t1._eval$1("@<1>")._bind$1(t1._rest[1])._eval$1("CastIterator<1,2>"));
+    },
+    get$length(_) {
+      return J.get$length$asx(this.get$_source());
+    },
+    get$isEmpty(_) {
+      return J.get$isEmpty$asx(this.get$_source());
+    },
+    get$isNotEmpty(_) {
+      return J.get$isNotEmpty$asx(this.get$_source());
+    },
+    skip$1(_, count) {
+      var t1 = A._instanceType(this);
+      return A.CastIterable_CastIterable(J.skip$1$ax(this.get$_source(), count), t1._precomputed1, t1._rest[1]);
+    },
+    take$1(_, count) {
+      var t1 = A._instanceType(this);
+      return A.CastIterable_CastIterable(J.take$1$ax(this.get$_source(), count), t1._precomputed1, t1._rest[1]);
+    },
+    elementAt$1(_, index) {
+      return A._instanceType(this)._rest[1]._as(J.elementAt$1$ax(this.get$_source(), index));
+    },
+    get$first(_) {
+      return A._instanceType(this)._rest[1]._as(J.get$first$ax(this.get$_source()));
+    },
+    get$last(_) {
+      return A._instanceType(this)._rest[1]._as(J.get$last$ax(this.get$_source()));
+    },
+    get$single(_) {
+      return A._instanceType(this)._rest[1]._as(J.get$single$ax(this.get$_source()));
+    },
+    contains$1(_, other) {
+      return J.contains$1$asx(this.get$_source(), other);
+    },
+    toString$0(_) {
+      return J.toString$0$(this.get$_source());
+    }
+  };
+  A.CastIterator.prototype = {
+    moveNext$0() {
+      return this._source.moveNext$0();
+    },
+    get$current(_) {
+      var t1 = this._source;
+      return this.$ti._rest[1]._as(t1.get$current(t1));
+    }
+  };
+  A.CastIterable.prototype = {
+    get$_source() {
+      return this._source;
+    }
+  };
+  A._EfficientLengthCastIterable.prototype = {$isEfficientLengthIterable: 1};
+  A._CastListBase.prototype = {
+    $index(_, index) {
+      return this.$ti._rest[1]._as(J.$index$asx(this._source, index));
+    },
+    $indexSet(_, index, value) {
+      J.$indexSet$ax(this._source, index, this.$ti._precomputed1._as(value));
+    },
+    set$length(_, $length) {
+      J.set$length$asx(this._source, $length);
+    },
+    add$1(_, value) {
+      J.add$1$ax(this._source, this.$ti._precomputed1._as(value));
+    },
+    addAll$1(_, values) {
+      var t1 = this.$ti;
+      J.addAll$1$ax(this._source, A.CastIterable_CastIterable(values, t1._rest[1], t1._precomputed1));
+    },
+    sort$1(_, compare) {
+      var t1 = compare == null ? null : new A._CastListBase_sort_closure(this, compare);
+      J.sort$1$ax(this._source, t1);
+    },
+    getRange$2(_, start, end) {
+      var t1 = this.$ti;
+      return A.CastIterable_CastIterable(J.getRange$2$ax(this._source, start, end), t1._precomputed1, t1._rest[1]);
+    },
+    setRange$4(_, start, end, iterable, skipCount) {
+      var t1 = this.$ti;
+      J.setRange$4$ax(this._source, start, end, A.CastIterable_CastIterable(iterable, t1._rest[1], t1._precomputed1), skipCount);
+    },
+    removeRange$2(_, start, end) {
+      J.removeRange$2$ax(this._source, start, end);
+    },
+    fillRange$3(_, start, end, fillValue) {
+      J.fillRange$3$ax(this._source, start, end, this.$ti._precomputed1._as(fillValue));
+    },
+    $isEfficientLengthIterable: 1,
+    $isList: 1
+  };
+  A._CastListBase_sort_closure.prototype = {
+    call$2(v1, v2) {
+      var t1 = this.$this.$ti._rest[1];
+      return this.compare.call$2(t1._as(v1), t1._as(v2));
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("int(1,1)");
+    }
+  };
+  A.CastList.prototype = {
+    cast$1$0(_, $R) {
+      return new A.CastList(this._source, this.$ti._eval$1("@<1>")._bind$1($R)._eval$1("CastList<1,2>"));
+    },
+    get$_source() {
+      return this._source;
+    }
+  };
+  A.CastSet.prototype = {
+    add$1(_, value) {
+      return this._source.add$1(0, this.$ti._precomputed1._as(value));
+    },
+    addAll$1(_, elements) {
+      var t1 = this.$ti;
+      this._source.addAll$1(0, A.CastIterable_CastIterable(elements, t1._rest[1], t1._precomputed1));
+    },
+    difference$1(other) {
+      var t1, _this = this;
+      if (_this._emptySet != null)
+        return _this._conditionalAdd$2(other, false);
+      t1 = _this.$ti;
+      return new A.CastSet(_this._source.difference$1(other), null, t1._eval$1("@<1>")._bind$1(t1._rest[1])._eval$1("CastSet<1,2>"));
+    },
+    _conditionalAdd$2(other, otherContains) {
+      var t3, castElement,
+        emptySet = this._emptySet,
+        t1 = this.$ti,
+        t2 = t1._rest[1],
+        result = emptySet == null ? A.LinkedHashSet_LinkedHashSet(t2) : emptySet.call$1$0(t2);
+      for (t2 = this._source, t2 = t2.get$iterator(t2), t3 = other._source, t1 = t1._rest[1]; t2.moveNext$0();) {
+        castElement = t1._as(t2.get$current(t2));
+        if (otherContains === t3.contains$1(0, castElement))
+          result.add$1(0, castElement);
+      }
+      return result;
+    },
+    toSet$0(_) {
+      var emptySet = this._emptySet,
+        t1 = this.$ti._rest[1],
+        result = emptySet == null ? A.LinkedHashSet_LinkedHashSet(t1) : emptySet.call$1$0(t1);
+      result.addAll$1(0, this);
+      return result;
+    },
+    $isEfficientLengthIterable: 1,
+    $isSet: 1,
+    get$_source() {
+      return this._source;
+    }
+  };
+  A.CastMap.prototype = {
+    cast$2$0(_, RK, RV) {
+      var t1 = this.$ti;
+      return new A.CastMap(this._source, t1._eval$1("@<1>")._bind$1(t1._rest[1])._bind$1(RK)._bind$1(RV)._eval$1("CastMap<1,2,3,4>"));
+    },
+    containsKey$1(key) {
+      return this._source.containsKey$1(key);
+    },
+    $index(_, key) {
+      return this.$ti._eval$1("4?")._as(this._source.$index(0, key));
+    },
+    $indexSet(_, key, value) {
+      var t1 = this.$ti;
+      this._source.$indexSet(0, t1._precomputed1._as(key), t1._rest[1]._as(value));
+    },
+    addAll$1(_, other) {
+      var t1 = this.$ti;
+      this._source.addAll$1(0, new A.CastMap(other, t1._eval$1("@<3>")._bind$1(t1._rest[3])._bind$1(t1._precomputed1)._bind$1(t1._rest[1])._eval$1("CastMap<1,2,3,4>")));
+    },
+    remove$1(_, key) {
+      return this.$ti._eval$1("4?")._as(this._source.remove$1(0, key));
+    },
+    forEach$1(_, f) {
+      this._source.forEach$1(0, new A.CastMap_forEach_closure(this, f));
+    },
+    get$keys(_) {
+      var t1 = this._source,
+        t2 = this.$ti;
+      return A.CastIterable_CastIterable(t1.get$keys(t1), t2._precomputed1, t2._rest[2]);
+    },
+    get$values(_) {
+      var t1 = this._source,
+        t2 = this.$ti;
+      return A.CastIterable_CastIterable(t1.get$values(t1), t2._rest[1], t2._rest[3]);
+    },
+    get$length(_) {
+      var t1 = this._source;
+      return t1.get$length(t1);
+    },
+    get$isEmpty(_) {
+      var t1 = this._source;
+      return t1.get$isEmpty(t1);
+    },
+    get$isNotEmpty(_) {
+      var t1 = this._source;
+      return t1.get$isNotEmpty(t1);
+    },
+    get$entries(_) {
+      var t1 = this._source;
+      return t1.get$entries(t1).map$1$1(0, new A.CastMap_entries_closure(this), this.$ti._eval$1("MapEntry<3,4>"));
+    }
+  };
+  A.CastMap_forEach_closure.prototype = {
+    call$2(key, value) {
+      var t1 = this.$this.$ti;
+      this.f.call$2(t1._rest[2]._as(key), t1._rest[3]._as(value));
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("~(1,2)");
+    }
+  };
+  A.CastMap_entries_closure.prototype = {
+    call$1(e) {
+      var t1 = this.$this.$ti,
+        t2 = t1._rest[3];
+      return new A.MapEntry(t1._rest[2]._as(e.key), t2._as(e.value), t1._eval$1("@<3>")._bind$1(t2)._eval$1("MapEntry<1,2>"));
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("MapEntry<3,4>(MapEntry<1,2>)");
+    }
+  };
+  A.LateError.prototype = {
+    toString$0(_) {
+      return "LateInitializationError: " + this._message;
+    }
+  };
+  A.ReachabilityError.prototype = {
+    toString$0(_) {
+      return "ReachabilityError: " + this._message;
+    }
+  };
+  A.CodeUnits.prototype = {
+    get$length(_) {
+      return this._string.length;
+    },
+    $index(_, i) {
+      return this._string.charCodeAt(i);
+    }
+  };
+  A.nullFuture_closure.prototype = {
+    call$0() {
+      return A.Future_Future$value(null, type$.Null);
+    },
+    $signature: 2
+  };
+  A.SentinelValue.prototype = {};
+  A.EfficientLengthIterable.prototype = {};
+  A.ListIterable.prototype = {
+    get$iterator(_) {
+      var _this = this;
+      return new A.ListIterator(_this, _this.get$length(_this), A._instanceType(_this)._eval$1("ListIterator<ListIterable.E>"));
+    },
+    get$isEmpty(_) {
+      return this.get$length(this) === 0;
+    },
+    get$first(_) {
+      if (this.get$length(this) === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      return this.elementAt$1(0, 0);
+    },
+    get$last(_) {
+      var _this = this;
+      if (_this.get$length(_this) === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      return _this.elementAt$1(0, _this.get$length(_this) - 1);
+    },
+    get$single(_) {
+      var _this = this;
+      if (_this.get$length(_this) === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      if (_this.get$length(_this) > 1)
+        throw A.wrapException(A.IterableElementError_tooMany());
+      return _this.elementAt$1(0, 0);
+    },
+    contains$1(_, element) {
+      var i, _this = this,
+        $length = _this.get$length(_this);
+      for (i = 0; i < $length; ++i) {
+        if (J.$eq$(_this.elementAt$1(0, i), element))
+          return true;
+        if ($length !== _this.get$length(_this))
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+      return false;
+    },
+    every$1(_, test) {
+      var i, _this = this,
+        $length = _this.get$length(_this);
+      for (i = 0; i < $length; ++i) {
+        if (!test.call$1(_this.elementAt$1(0, i)))
+          return false;
+        if ($length !== _this.get$length(_this))
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+      return true;
+    },
+    any$1(_, test) {
+      var i, _this = this,
+        $length = _this.get$length(_this);
+      for (i = 0; i < $length; ++i) {
+        if (test.call$1(_this.elementAt$1(0, i)))
+          return true;
+        if ($length !== _this.get$length(_this))
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+      return false;
+    },
+    join$1(_, separator) {
+      var first, t1, i, _this = this,
+        $length = _this.get$length(_this);
+      if (separator.length !== 0) {
+        if ($length === 0)
+          return "";
+        first = A.S(_this.elementAt$1(0, 0));
+        if ($length !== _this.get$length(_this))
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+        for (t1 = first, i = 1; i < $length; ++i) {
+          t1 = t1 + separator + A.S(_this.elementAt$1(0, i));
+          if ($length !== _this.get$length(_this))
+            throw A.wrapException(A.ConcurrentModificationError$(_this));
+        }
+        return t1.charCodeAt(0) == 0 ? t1 : t1;
+      } else {
+        for (i = 0, t1 = ""; i < $length; ++i) {
+          t1 += A.S(_this.elementAt$1(0, i));
+          if ($length !== _this.get$length(_this))
+            throw A.wrapException(A.ConcurrentModificationError$(_this));
+        }
+        return t1.charCodeAt(0) == 0 ? t1 : t1;
+      }
+    },
+    join$0(_) {
+      return this.join$1(0, "");
+    },
+    where$1(_, test) {
+      return this.super$Iterable$where(0, test);
+    },
+    map$1$1(_, toElement, $T) {
+      return new A.MappedListIterable(this, toElement, A._instanceType(this)._eval$1("@<ListIterable.E>")._bind$1($T)._eval$1("MappedListIterable<1,2>"));
+    },
+    reduce$1(_, combine) {
+      var value, i, _this = this,
+        $length = _this.get$length(_this);
+      if ($length === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      value = _this.elementAt$1(0, 0);
+      for (i = 1; i < $length; ++i) {
+        value = combine.call$2(value, _this.elementAt$1(0, i));
+        if ($length !== _this.get$length(_this))
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+      return value;
+    },
+    fold$1$2(_, initialValue, combine) {
+      var value, i, _this = this,
+        $length = _this.get$length(_this);
+      for (value = initialValue, i = 0; i < $length; ++i) {
+        value = combine.call$2(value, _this.elementAt$1(0, i));
+        if ($length !== _this.get$length(_this))
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+      return value;
+    },
+    fold$2(_, initialValue, combine) {
+      return this.fold$1$2(0, initialValue, combine, type$.dynamic);
+    },
+    skip$1(_, count) {
+      return A.SubListIterable$(this, count, null, A._instanceType(this)._eval$1("ListIterable.E"));
+    },
+    take$1(_, count) {
+      return A.SubListIterable$(this, 0, A.checkNotNullable(count, "count", type$.int), A._instanceType(this)._eval$1("ListIterable.E"));
+    },
+    toList$1$growable(_, growable) {
+      return A.List_List$of(this, true, A._instanceType(this)._eval$1("ListIterable.E"));
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    },
+    toSet$0(_) {
+      var i, _this = this,
+        result = A.LinkedHashSet_LinkedHashSet(A._instanceType(_this)._eval$1("ListIterable.E"));
+      for (i = 0; i < _this.get$length(_this); ++i)
+        result.add$1(0, _this.elementAt$1(0, i));
+      return result;
+    }
+  };
+  A.SubListIterable.prototype = {
+    SubListIterable$3(_iterable, _start, _endOrLength, $E) {
+      var endOrLength,
+        t1 = this._start;
+      A.RangeError_checkNotNegative(t1, "start");
+      endOrLength = this._endOrLength;
+      if (endOrLength != null) {
+        A.RangeError_checkNotNegative(endOrLength, "end");
+        if (t1 > endOrLength)
+          throw A.wrapException(A.RangeError$range(t1, 0, endOrLength, "start", null));
+      }
+    },
+    get$_endIndex() {
+      var $length = J.get$length$asx(this.__internal$_iterable),
+        endOrLength = this._endOrLength;
+      if (endOrLength == null || endOrLength > $length)
+        return $length;
+      return endOrLength;
+    },
+    get$_startIndex() {
+      var $length = J.get$length$asx(this.__internal$_iterable),
+        t1 = this._start;
+      if (t1 > $length)
+        return $length;
+      return t1;
+    },
+    get$length(_) {
+      var endOrLength,
+        $length = J.get$length$asx(this.__internal$_iterable),
+        t1 = this._start;
+      if (t1 >= $length)
+        return 0;
+      endOrLength = this._endOrLength;
+      if (endOrLength == null || endOrLength >= $length)
+        return $length - t1;
+      return endOrLength - t1;
+    },
+    elementAt$1(_, index) {
+      var _this = this,
+        realIndex = _this.get$_startIndex() + index;
+      if (index < 0 || realIndex >= _this.get$_endIndex())
+        throw A.wrapException(A.IndexError$withLength(index, _this.get$length(0), _this, null, "index"));
+      return J.elementAt$1$ax(_this.__internal$_iterable, realIndex);
+    },
+    skip$1(_, count) {
+      var newStart, endOrLength, _this = this;
+      A.RangeError_checkNotNegative(count, "count");
+      newStart = _this._start + count;
+      endOrLength = _this._endOrLength;
+      if (endOrLength != null && newStart >= endOrLength)
+        return new A.EmptyIterable(_this.$ti._eval$1("EmptyIterable<1>"));
+      return A.SubListIterable$(_this.__internal$_iterable, newStart, endOrLength, _this.$ti._precomputed1);
+    },
+    take$1(_, count) {
+      var endOrLength, t1, newEnd, _this = this;
+      A.RangeError_checkNotNegative(count, "count");
+      endOrLength = _this._endOrLength;
+      t1 = _this._start;
+      newEnd = t1 + count;
+      if (endOrLength == null)
+        return A.SubListIterable$(_this.__internal$_iterable, t1, newEnd, _this.$ti._precomputed1);
+      else {
+        if (endOrLength < newEnd)
+          return _this;
+        return A.SubListIterable$(_this.__internal$_iterable, t1, newEnd, _this.$ti._precomputed1);
+      }
+    },
+    toList$1$growable(_, growable) {
+      var $length, result, i, _this = this,
+        start = _this._start,
+        t1 = _this.__internal$_iterable,
+        t2 = J.getInterceptor$asx(t1),
+        end = t2.get$length(t1),
+        endOrLength = _this._endOrLength;
+      if (endOrLength != null && endOrLength < end)
+        end = endOrLength;
+      $length = end - start;
+      if ($length <= 0) {
+        t1 = _this.$ti._precomputed1;
+        return growable ? J.JSArray_JSArray$growable(0, t1) : J.JSArray_JSArray$fixed(0, t1);
+      }
+      result = A.List_List$filled($length, t2.elementAt$1(t1, start), growable, _this.$ti._precomputed1);
+      for (i = 1; i < $length; ++i) {
+        result[i] = t2.elementAt$1(t1, start + i);
+        if (t2.get$length(t1) < end)
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+      return result;
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    }
+  };
+  A.ListIterator.prototype = {
+    get$current(_) {
+      var t1 = this.__internal$_current;
+      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
+    },
+    moveNext$0() {
+      var t3, _this = this,
+        t1 = _this.__internal$_iterable,
+        t2 = J.getInterceptor$asx(t1),
+        $length = t2.get$length(t1);
+      if (_this.__internal$_length !== $length)
+        throw A.wrapException(A.ConcurrentModificationError$(t1));
+      t3 = _this.__internal$_index;
+      if (t3 >= $length) {
+        _this.__internal$_current = null;
+        return false;
+      }
+      _this.__internal$_current = t2.elementAt$1(t1, t3);
+      ++_this.__internal$_index;
+      return true;
+    }
+  };
+  A.MappedIterable.prototype = {
+    get$iterator(_) {
+      var t1 = A._instanceType(this);
+      return new A.MappedIterator(J.get$iterator$ax(this.__internal$_iterable), this._f, t1._eval$1("@<1>")._bind$1(t1._rest[1])._eval$1("MappedIterator<1,2>"));
+    },
+    get$length(_) {
+      return J.get$length$asx(this.__internal$_iterable);
+    },
+    get$isEmpty(_) {
+      return J.get$isEmpty$asx(this.__internal$_iterable);
+    },
+    get$first(_) {
+      return this._f.call$1(J.get$first$ax(this.__internal$_iterable));
+    },
+    get$last(_) {
+      return this._f.call$1(J.get$last$ax(this.__internal$_iterable));
+    },
+    get$single(_) {
+      return this._f.call$1(J.get$single$ax(this.__internal$_iterable));
+    },
+    elementAt$1(_, index) {
+      return this._f.call$1(J.elementAt$1$ax(this.__internal$_iterable, index));
+    }
+  };
+  A.EfficientLengthMappedIterable.prototype = {$isEfficientLengthIterable: 1};
+  A.MappedIterator.prototype = {
+    moveNext$0() {
+      var _this = this,
+        t1 = _this._iterator;
+      if (t1.moveNext$0()) {
+        _this.__internal$_current = _this._f.call$1(t1.get$current(t1));
+        return true;
+      }
+      _this.__internal$_current = null;
+      return false;
+    },
+    get$current(_) {
+      var t1 = this.__internal$_current;
+      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
+    }
+  };
+  A.MappedListIterable.prototype = {
+    get$length(_) {
+      return J.get$length$asx(this._source);
+    },
+    elementAt$1(_, index) {
+      return this._f.call$1(J.elementAt$1$ax(this._source, index));
+    }
+  };
+  A.WhereIterable.prototype = {
+    get$iterator(_) {
+      return new A.WhereIterator(J.get$iterator$ax(this.__internal$_iterable), this._f);
+    },
+    map$1$1(_, toElement, $T) {
+      return new A.MappedIterable(this, toElement, this.$ti._eval$1("@<1>")._bind$1($T)._eval$1("MappedIterable<1,2>"));
+    }
+  };
+  A.WhereIterator.prototype = {
+    moveNext$0() {
+      var t1, t2;
+      for (t1 = this._iterator, t2 = this._f; t1.moveNext$0();)
+        if (t2.call$1(t1.get$current(t1)))
+          return true;
+      return false;
+    },
+    get$current(_) {
+      var t1 = this._iterator;
+      return t1.get$current(t1);
+    }
+  };
+  A.ExpandIterable.prototype = {
+    get$iterator(_) {
+      var t1 = this.$ti;
+      return new A.ExpandIterator(J.get$iterator$ax(this.__internal$_iterable), this._f, B.C_EmptyIterator, t1._eval$1("@<1>")._bind$1(t1._rest[1])._eval$1("ExpandIterator<1,2>"));
+    }
+  };
+  A.ExpandIterator.prototype = {
+    get$current(_) {
+      var t1 = this.__internal$_current;
+      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
+    },
+    moveNext$0() {
+      var t2, t3, _this = this,
+        t1 = _this._currentExpansion;
+      if (t1 == null)
+        return false;
+      for (t2 = _this._iterator, t3 = _this._f; !t1.moveNext$0();) {
+        _this.__internal$_current = null;
+        if (t2.moveNext$0()) {
+          _this._currentExpansion = null;
+          t1 = J.get$iterator$ax(t3.call$1(t2.get$current(t2)));
+          _this._currentExpansion = t1;
+        } else
+          return false;
+      }
+      t1 = _this._currentExpansion;
+      _this.__internal$_current = t1.get$current(t1);
+      return true;
+    }
+  };
+  A.TakeIterable.prototype = {
+    get$iterator(_) {
+      return new A.TakeIterator(J.get$iterator$ax(this.__internal$_iterable), this._takeCount, A._instanceType(this)._eval$1("TakeIterator<1>"));
+    }
+  };
+  A.EfficientLengthTakeIterable.prototype = {
+    get$length(_) {
+      var iterableLength = J.get$length$asx(this.__internal$_iterable),
+        t1 = this._takeCount;
+      if (iterableLength > t1)
+        return t1;
+      return iterableLength;
+    },
+    $isEfficientLengthIterable: 1
+  };
+  A.TakeIterator.prototype = {
+    moveNext$0() {
+      if (--this._remaining >= 0)
+        return this._iterator.moveNext$0();
+      this._remaining = -1;
+      return false;
+    },
+    get$current(_) {
+      var t1;
+      if (this._remaining < 0) {
+        this.$ti._precomputed1._as(null);
+        return null;
+      }
+      t1 = this._iterator;
+      return t1.get$current(t1);
+    }
+  };
+  A.SkipIterable.prototype = {
+    skip$1(_, count) {
+      A.ArgumentError_checkNotNull(count, "count");
+      A.RangeError_checkNotNegative(count, "count");
+      return new A.SkipIterable(this.__internal$_iterable, this._skipCount + count, A._instanceType(this)._eval$1("SkipIterable<1>"));
+    },
+    get$iterator(_) {
+      return new A.SkipIterator(J.get$iterator$ax(this.__internal$_iterable), this._skipCount);
+    }
+  };
+  A.EfficientLengthSkipIterable.prototype = {
+    get$length(_) {
+      var $length = J.get$length$asx(this.__internal$_iterable) - this._skipCount;
+      if ($length >= 0)
+        return $length;
+      return 0;
+    },
+    skip$1(_, count) {
+      A.ArgumentError_checkNotNull(count, "count");
+      A.RangeError_checkNotNegative(count, "count");
+      return new A.EfficientLengthSkipIterable(this.__internal$_iterable, this._skipCount + count, this.$ti);
+    },
+    $isEfficientLengthIterable: 1
+  };
+  A.SkipIterator.prototype = {
+    moveNext$0() {
+      var t1, i;
+      for (t1 = this._iterator, i = 0; i < this._skipCount; ++i)
+        t1.moveNext$0();
+      this._skipCount = 0;
+      return t1.moveNext$0();
+    },
+    get$current(_) {
+      var t1 = this._iterator;
+      return t1.get$current(t1);
+    }
+  };
+  A.SkipWhileIterable.prototype = {
+    get$iterator(_) {
+      return new A.SkipWhileIterator(J.get$iterator$ax(this.__internal$_iterable), this._f);
+    }
+  };
+  A.SkipWhileIterator.prototype = {
+    moveNext$0() {
+      var t1, t2, _this = this;
+      if (!_this._hasSkipped) {
+        _this._hasSkipped = true;
+        for (t1 = _this._iterator, t2 = _this._f; t1.moveNext$0();)
+          if (!t2.call$1(t1.get$current(t1)))
+            return true;
+      }
+      return _this._iterator.moveNext$0();
+    },
+    get$current(_) {
+      var t1 = this._iterator;
+      return t1.get$current(t1);
+    }
+  };
+  A.EmptyIterable.prototype = {
+    get$iterator(_) {
+      return B.C_EmptyIterator;
+    },
+    get$isEmpty(_) {
+      return true;
+    },
+    get$length(_) {
+      return 0;
+    },
+    get$first(_) {
+      throw A.wrapException(A.IterableElementError_noElement());
+    },
+    get$last(_) {
+      throw A.wrapException(A.IterableElementError_noElement());
+    },
+    get$single(_) {
+      throw A.wrapException(A.IterableElementError_noElement());
+    },
+    elementAt$1(_, index) {
+      throw A.wrapException(A.RangeError$range(index, 0, 0, "index", null));
+    },
+    contains$1(_, element) {
+      return false;
+    },
+    every$1(_, test) {
+      return true;
+    },
+    any$1(_, test) {
+      return false;
+    },
+    join$1(_, separator) {
+      return "";
+    },
+    where$1(_, test) {
+      return this;
+    },
+    map$1$1(_, toElement, $T) {
+      return new A.EmptyIterable($T._eval$1("EmptyIterable<0>"));
+    },
+    skip$1(_, count) {
+      A.RangeError_checkNotNegative(count, "count");
+      return this;
+    },
+    take$1(_, count) {
+      A.RangeError_checkNotNegative(count, "count");
+      return this;
+    },
+    toList$1$growable(_, growable) {
+      var t1 = J.JSArray_JSArray$growable(0, this.$ti._precomputed1);
+      return t1;
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    },
+    toSet$0(_) {
+      return A.LinkedHashSet_LinkedHashSet(this.$ti._precomputed1);
+    }
+  };
+  A.EmptyIterator.prototype = {
+    moveNext$0() {
+      return false;
+    },
+    get$current(_) {
+      throw A.wrapException(A.IterableElementError_noElement());
+    }
+  };
+  A.FollowedByIterable.prototype = {
+    get$iterator(_) {
+      return new A.FollowedByIterator(J.get$iterator$ax(this.__internal$_first), this._second);
+    },
+    get$length(_) {
+      var t1 = this._second;
+      return J.get$length$asx(this.__internal$_first) + t1.get$length(t1);
+    },
+    get$isEmpty(_) {
+      var t1;
+      if (J.get$isEmpty$asx(this.__internal$_first)) {
+        t1 = this._second;
+        t1 = t1.get$isEmpty(t1);
+      } else
+        t1 = false;
+      return t1;
+    },
+    get$isNotEmpty(_) {
+      var t1;
+      if (!J.get$isNotEmpty$asx(this.__internal$_first)) {
+        t1 = this._second;
+        t1 = t1.get$isNotEmpty(t1);
+      } else
+        t1 = true;
+      return t1;
+    },
+    contains$1(_, value) {
+      var t1;
+      if (!J.contains$1$asx(this.__internal$_first, value)) {
+        t1 = this._second;
+        t1 = t1.contains$1(t1, value);
+      } else
+        t1 = true;
+      return t1;
+    },
+    get$first(_) {
+      var t1,
+        iterator = J.get$iterator$ax(this.__internal$_first);
+      if (iterator.moveNext$0())
+        return iterator.get$current(iterator);
+      t1 = this._second;
+      return t1.get$first(t1);
+    },
+    get$last(_) {
+      var last,
+        t1 = this._second,
+        iterator = t1.get$iterator(t1);
+      if (iterator.moveNext$0()) {
+        last = iterator.get$current(iterator);
+        for (; iterator.moveNext$0();)
+          last = iterator.get$current(iterator);
+        return last;
+      }
+      return J.get$last$ax(this.__internal$_first);
+    }
+  };
+  A.EfficientLengthFollowedByIterable.prototype = {
+    elementAt$1(_, index) {
+      var t1 = this.__internal$_first,
+        t2 = J.getInterceptor$asx(t1),
+        firstLength = t2.get$length(t1);
+      if (index < firstLength)
+        return t2.elementAt$1(t1, index);
+      t1 = this._second;
+      return t1.elementAt$1(t1, index - firstLength);
+    },
+    get$first(_) {
+      var t1 = this.__internal$_first,
+        t2 = J.getInterceptor$asx(t1);
+      if (t2.get$isNotEmpty(t1))
+        return t2.get$first(t1);
+      t1 = this._second;
+      return t1.get$first(t1);
+    },
+    get$last(_) {
+      var t1 = this._second;
+      if (t1.get$isNotEmpty(t1))
+        return t1.get$last(t1);
+      return J.get$last$ax(this.__internal$_first);
+    },
+    $isEfficientLengthIterable: 1
+  };
+  A.FollowedByIterator.prototype = {
+    moveNext$0() {
+      var t1, _this = this;
+      if (_this._currentIterator.moveNext$0())
+        return true;
+      t1 = _this._nextIterable;
+      if (t1 != null) {
+        t1 = t1.get$iterator(t1);
+        _this._currentIterator = t1;
+        _this._nextIterable = null;
+        return t1.moveNext$0();
+      }
+      return false;
+    },
+    get$current(_) {
+      var t1 = this._currentIterator;
+      return t1.get$current(t1);
+    }
+  };
+  A.WhereTypeIterable.prototype = {
+    get$iterator(_) {
+      return new A.WhereTypeIterator(J.get$iterator$ax(this._source), this.$ti._eval$1("WhereTypeIterator<1>"));
+    }
+  };
+  A.WhereTypeIterator.prototype = {
+    moveNext$0() {
+      var t1, t2;
+      for (t1 = this._source, t2 = this.$ti._precomputed1; t1.moveNext$0();)
+        if (t2._is(t1.get$current(t1)))
+          return true;
+      return false;
+    },
+    get$current(_) {
+      var t1 = this._source;
+      return this.$ti._precomputed1._as(t1.get$current(t1));
+    }
+  };
+  A.FixedLengthListMixin.prototype = {
+    set$length(receiver, newLength) {
+      throw A.wrapException(A.UnsupportedError$("Cannot change the length of a fixed-length list"));
+    },
+    add$1(receiver, value) {
+      throw A.wrapException(A.UnsupportedError$("Cannot add to a fixed-length list"));
+    },
+    addAll$1(receiver, iterable) {
+      throw A.wrapException(A.UnsupportedError$("Cannot add to a fixed-length list"));
+    },
+    removeRange$2(receiver, start, end) {
+      throw A.wrapException(A.UnsupportedError$("Cannot remove from a fixed-length list"));
+    }
+  };
+  A.UnmodifiableListMixin.prototype = {
+    $indexSet(_, index, value) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify an unmodifiable list"));
+    },
+    set$length(_, newLength) {
+      throw A.wrapException(A.UnsupportedError$("Cannot change the length of an unmodifiable list"));
+    },
+    add$1(_, value) {
+      throw A.wrapException(A.UnsupportedError$("Cannot add to an unmodifiable list"));
+    },
+    addAll$1(_, iterable) {
+      throw A.wrapException(A.UnsupportedError$("Cannot add to an unmodifiable list"));
+    },
+    sort$1(_, compare) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify an unmodifiable list"));
+    },
+    setRange$4(_, start, end, iterable, skipCount) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify an unmodifiable list"));
+    },
+    removeRange$2(_, start, end) {
+      throw A.wrapException(A.UnsupportedError$("Cannot remove from an unmodifiable list"));
+    },
+    fillRange$3(_, start, end, fillValue) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify an unmodifiable list"));
+    }
+  };
+  A.UnmodifiableListBase.prototype = {};
+  A.ReversedListIterable.prototype = {
+    get$length(_) {
+      return J.get$length$asx(this._source);
+    },
+    elementAt$1(_, index) {
+      var t1 = this._source,
+        t2 = J.getInterceptor$asx(t1);
+      return t2.elementAt$1(t1, t2.get$length(t1) - 1 - index);
+    }
+  };
+  A.Symbol.prototype = {
+    get$hashCode(_) {
+      var hash = this._hashCode;
+      if (hash != null)
+        return hash;
+      hash = 664597 * B.JSString_methods.get$hashCode(this.__internal$_name) & 536870911;
+      this._hashCode = hash;
+      return hash;
+    },
+    toString$0(_) {
+      return 'Symbol("' + this.__internal$_name + '")';
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.Symbol && this.__internal$_name === other.__internal$_name;
+    },
+    $isSymbol0: 1
+  };
+  A.__CastListBase__CastIterableBase_ListMixin.prototype = {};
+  A._Record_1.prototype = {$recipe: "+(1)", $shape: 1};
+  A._Record_2.prototype = {$recipe: "+(1,2)", $shape: 2};
+  A._Record_2_forImport.prototype = {$recipe: "+forImport(1,2)", $shape: 3};
+  A._Record_2_imports_modules.prototype = {$recipe: "+imports,modules(1,2)", $shape: 5};
+  A._Record_2_loadedUrls_stylesheet.prototype = {$recipe: "+loadedUrls,stylesheet(1,2)", $shape: 6};
+  A._Record_2_sourceMap.prototype = {$recipe: "+sourceMap(1,2)", $shape: 4};
+  A._Record_3.prototype = {$recipe: "+(1,2,3)", $shape: 7};
+  A._Record_3_forImport.prototype = {$recipe: "+forImport(1,2,3)", $shape: 8};
+  A._Record_3_importer_isDependency.prototype = {$recipe: "+importer,isDependency(1,2,3)", $shape: 10};
+  A._Record_3_originalUrl.prototype = {$recipe: "+originalUrl(1,2,3)", $shape: 9};
+  A._Record_5_named_namedNodes_positional_positionalNodes_separator.prototype = {$recipe: "+named,namedNodes,positional,positionalNodes,separator(1,2,3,4,5)", $shape: 12};
+  A.ConstantMapView.prototype = {};
+  A.ConstantMap.prototype = {
+    cast$2$0(_, RK, RV) {
+      var t1 = A._instanceType(this);
+      return A.Map_castFrom(this, t1._precomputed1, t1._rest[1], RK, RV);
+    },
+    get$isEmpty(_) {
+      return this.get$length(this) === 0;
+    },
+    get$isNotEmpty(_) {
+      return this.get$length(this) !== 0;
+    },
+    toString$0(_) {
+      return A.MapBase_mapToString(this);
+    },
+    $indexSet(_, key, value) {
+      A.ConstantMap__throwUnmodifiable();
+    },
+    remove$1(_, key) {
+      A.ConstantMap__throwUnmodifiable();
+    },
+    addAll$1(_, other) {
+      A.ConstantMap__throwUnmodifiable();
+    },
+    get$entries(_) {
+      return new A._SyncStarIterable(this.entries$body$ConstantMap(0), A._instanceType(this)._eval$1("_SyncStarIterable<MapEntry<1,2>>"));
+    },
+    entries$body$ConstantMap($async$_) {
+      var $async$self = this;
+      return function() {
+        var _ = $async$_;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, t2, key;
+        return function $async$get$entries($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = $async$self.get$keys($async$self), t1 = t1.get$iterator(t1), t2 = A._instanceType($async$self), t2 = t2._eval$1("@<1>")._bind$1(t2._rest[1])._eval$1("MapEntry<1,2>");
+              case 2:
+                // for condition
+                if (!t1.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 3;
+                  break;
+                }
+                key = t1.get$current(t1);
+                $async$goto = 4;
+                return $async$iterator._async$_current = new A.MapEntry(key, $async$self.$index(0, key), t2), 1;
+              case 4:
+                // after yield
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 3:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    $isMap: 1
+  };
+  A.ConstantStringMap.prototype = {
+    get$length(_) {
+      return this._values.length;
+    },
+    get$_keys() {
+      var keys = this.$keys;
+      if (keys == null) {
+        keys = Object.keys(this._jsIndex);
+        this.$keys = keys;
+      }
+      return keys;
+    },
+    containsKey$1(key) {
+      if (typeof key != "string")
+        return false;
+      if ("__proto__" === key)
+        return false;
+      return this._jsIndex.hasOwnProperty(key);
+    },
+    $index(_, key) {
+      if (!this.containsKey$1(key))
+        return null;
+      return this._values[this._jsIndex[key]];
+    },
+    forEach$1(_, f) {
+      var t1, i,
+        keys = this.get$_keys(),
+        values = this._values;
+      for (t1 = keys.length, i = 0; i < t1; ++i)
+        f.call$2(keys[i], values[i]);
+    },
+    get$keys(_) {
+      return new A._KeysOrValues(this.get$_keys(), this.$ti._eval$1("_KeysOrValues<1>"));
+    },
+    get$values(_) {
+      return new A._KeysOrValues(this._values, this.$ti._eval$1("_KeysOrValues<2>"));
+    }
+  };
+  A._KeysOrValues.prototype = {
+    get$length(_) {
+      return this._elements.length;
+    },
+    get$isEmpty(_) {
+      return 0 === this._elements.length;
+    },
+    get$isNotEmpty(_) {
+      return 0 !== this._elements.length;
+    },
+    get$iterator(_) {
+      var t1 = this._elements;
+      return new A._KeysOrValuesOrElementsIterator(t1, t1.length, this.$ti._eval$1("_KeysOrValuesOrElementsIterator<1>"));
+    }
+  };
+  A._KeysOrValuesOrElementsIterator.prototype = {
+    get$current(_) {
+      var t1 = this.__js_helper$_current;
+      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
+    },
+    moveNext$0() {
+      var _this = this,
+        t1 = _this.__js_helper$_index;
+      if (t1 >= _this.__js_helper$_length) {
+        _this.__js_helper$_current = null;
+        return false;
+      }
+      _this.__js_helper$_current = _this._elements[t1];
+      _this.__js_helper$_index = t1 + 1;
+      return true;
+    }
+  };
+  A.ConstantSet.prototype = {
+    add$1(_, value) {
+      A.ConstantSet__throwUnmodifiable();
+    },
+    addAll$1(_, elements) {
+      A.ConstantSet__throwUnmodifiable();
+    },
+    remove$1(_, value) {
+      A.ConstantSet__throwUnmodifiable();
+    }
+  };
+  A.ConstantStringSet.prototype = {
+    get$length(_) {
+      return this.__js_helper$_length;
+    },
+    get$isEmpty(_) {
+      return this.__js_helper$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this.__js_helper$_length !== 0;
+    },
+    get$iterator(_) {
+      var t1, _this = this,
+        keys = _this.$keys;
+      if (keys == null) {
+        keys = Object.keys(_this._jsIndex);
+        _this.$keys = keys;
+      }
+      t1 = keys;
+      return new A._KeysOrValuesOrElementsIterator(t1, t1.length, _this.$ti._eval$1("_KeysOrValuesOrElementsIterator<1>"));
+    },
+    contains$1(_, key) {
+      if (typeof key != "string")
+        return false;
+      if ("__proto__" === key)
+        return false;
+      return this._jsIndex.hasOwnProperty(key);
+    },
+    toSet$0(_) {
+      return A.LinkedHashSet_LinkedHashSet$of(this, this.$ti._precomputed1);
+    }
+  };
+  A.GeneralConstantSet.prototype = {
+    get$length(_) {
+      return this._elements.length;
+    },
+    get$isEmpty(_) {
+      return this._elements.length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._elements.length !== 0;
+    },
+    get$iterator(_) {
+      var t1 = this._elements;
+      return new A._KeysOrValuesOrElementsIterator(t1, t1.length, this.$ti._eval$1("_KeysOrValuesOrElementsIterator<1>"));
+    },
+    _getMap$0() {
+      var t1, t2, _i, key, _this = this,
+        backingMap = _this.$map;
+      if (backingMap == null) {
+        t1 = _this.$ti;
+        backingMap = new A.JsConstantLinkedHashMap(t1._eval$1("@<1>")._bind$1(t1._precomputed1)._eval$1("JsConstantLinkedHashMap<1,2>"));
+        for (t1 = _this._elements, t2 = t1.length, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+          key = t1[_i];
+          backingMap.$indexSet(0, key, key);
+        }
+        _this.$map = backingMap;
+      }
+      return backingMap;
+    },
+    contains$1(_, key) {
+      return this._getMap$0().containsKey$1(key);
+    },
+    toSet$0(_) {
+      return A.LinkedHashSet_LinkedHashSet$of(this, this.$ti._precomputed1);
+    }
+  };
+  A.Instantiation.prototype = {
+    Instantiation$1(_genericClosure) {
+      if (false)
+        A.instantiatedGenericFunctionType(0, 0);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.Instantiation && this._genericClosure.$eq(0, other._genericClosure) && A.getRuntimeTypeOfClosure(this) === A.getRuntimeTypeOfClosure(other);
+    },
+    get$hashCode(_) {
+      return A.Object_hash(this._genericClosure, A.getRuntimeTypeOfClosure(this), B.C_SentinelValue, B.C_SentinelValue);
+    },
+    toString$0(_) {
+      var t1 = B.JSArray_methods.join$1(this.get$_types(), ", ");
+      return this._genericClosure.toString$0(0) + " with " + ("<" + t1 + ">");
+    }
+  };
+  A.Instantiation1.prototype = {
+    get$_types() {
+      return [A.createRuntimeType(this.$ti._precomputed1)];
+    },
+    call$0() {
+      return this._genericClosure.call$1$0(this.$ti._rest[0]);
+    },
+    call$2(a0, a1) {
+      return this._genericClosure.call$1$2(a0, a1, this.$ti._rest[0]);
+    },
+    call$3(a0, a1, a2) {
+      return this._genericClosure.call$1$3(a0, a1, a2, this.$ti._rest[0]);
+    },
+    call$4(a0, a1, a2, a3) {
+      return this._genericClosure.call$1$4(a0, a1, a2, a3, this.$ti._rest[0]);
+    },
+    $signature() {
+      return A.instantiatedGenericFunctionType(A.closureFunctionType(this._genericClosure), this.$ti);
+    }
+  };
+  A.JSInvocationMirror.prototype = {
+    get$memberName() {
+      var t1 = this.__js_helper$_memberName;
+      if (t1 instanceof A.Symbol)
+        return t1;
+      return this.__js_helper$_memberName = new A.Symbol(t1);
+    },
+    get$positionalArguments() {
+      var t1, t2, argumentCount, list, index, _this = this;
+      if (_this.__js_helper$_kind === 1)
+        return B.List_empty6;
+      t1 = _this._arguments;
+      t2 = J.getInterceptor$asx(t1);
+      argumentCount = t2.get$length(t1) - J.get$length$asx(_this._namedArgumentNames) - _this._typeArgumentCount;
+      if (argumentCount === 0)
+        return B.List_empty6;
+      list = [];
+      for (index = 0; index < argumentCount; ++index)
+        list.push(t2.$index(t1, index));
+      return J.JSArray_markUnmodifiableList(list);
+    },
+    get$namedArguments() {
+      var t1, t2, namedArgumentCount, t3, t4, namedArgumentsStartIndex, map, i, _this = this;
+      if (_this.__js_helper$_kind !== 0)
+        return B.Map_empty3;
+      t1 = _this._namedArgumentNames;
+      t2 = J.getInterceptor$asx(t1);
+      namedArgumentCount = t2.get$length(t1);
+      t3 = _this._arguments;
+      t4 = J.getInterceptor$asx(t3);
+      namedArgumentsStartIndex = t4.get$length(t3) - namedArgumentCount - _this._typeArgumentCount;
+      if (namedArgumentCount === 0)
+        return B.Map_empty3;
+      map = new A.JsLinkedHashMap(type$.JsLinkedHashMap_Symbol_dynamic);
+      for (i = 0; i < namedArgumentCount; ++i)
+        map.$indexSet(0, new A.Symbol(t2.$index(t1, i)), t4.$index(t3, namedArgumentsStartIndex + i));
+      return new A.ConstantMapView(map, type$.ConstantMapView_Symbol_dynamic);
+    }
+  };
+  A.Primitives_functionNoSuchMethod_closure.prototype = {
+    call$2($name, argument) {
+      var t1 = this._box_0;
+      t1.names = t1.names + "$" + $name;
+      this.namedArgumentList.push($name);
+      this.$arguments.push(argument);
+      ++t1.argumentCount;
+    },
+    $signature: 113
+  };
+  A.TypeErrorDecoder.prototype = {
+    matchTypeError$1(message) {
+      var result, t1, _this = this,
+        match = new RegExp(_this._pattern).exec(message);
+      if (match == null)
+        return null;
+      result = Object.create(null);
+      t1 = _this._arguments;
+      if (t1 !== -1)
+        result.arguments = match[t1 + 1];
+      t1 = _this._argumentsExpr;
+      if (t1 !== -1)
+        result.argumentsExpr = match[t1 + 1];
+      t1 = _this._expr;
+      if (t1 !== -1)
+        result.expr = match[t1 + 1];
+      t1 = _this._method;
+      if (t1 !== -1)
+        result.method = match[t1 + 1];
+      t1 = _this._receiver;
+      if (t1 !== -1)
+        result.receiver = match[t1 + 1];
+      return result;
+    }
+  };
+  A.NullError.prototype = {
+    toString$0(_) {
+      return "Null check operator used on a null value";
+    }
+  };
+  A.JsNoSuchMethodError.prototype = {
+    toString$0(_) {
+      var t2, _this = this,
+        _s38_ = "NoSuchMethodError: method not found: '",
+        t1 = _this._method;
+      if (t1 == null)
+        return "NoSuchMethodError: " + _this.__js_helper$_message;
+      t2 = _this._receiver;
+      if (t2 == null)
+        return _s38_ + t1 + "' (" + _this.__js_helper$_message + ")";
+      return _s38_ + t1 + "' on '" + t2 + "' (" + _this.__js_helper$_message + ")";
+    }
+  };
+  A.UnknownJsTypeError.prototype = {
+    toString$0(_) {
+      var t1 = this.__js_helper$_message;
+      return t1.length === 0 ? "Error" : "Error: " + t1;
+    }
+  };
+  A.NullThrownFromJavaScriptException.prototype = {
+    toString$0(_) {
+      return "Throw of null ('" + (this._irritant === null ? "null" : "undefined") + "' from JavaScript)";
+    },
+    $isException: 1
+  };
+  A.ExceptionAndStackTrace.prototype = {};
+  A._StackTrace.prototype = {
+    toString$0(_) {
+      var trace,
+        t1 = this._trace;
+      if (t1 != null)
+        return t1;
+      t1 = this._exception;
+      trace = t1 !== null && typeof t1 === "object" ? t1.stack : null;
+      return this._trace = trace == null ? "" : trace;
+    },
+    $isStackTrace: 1
+  };
+  A.Closure.prototype = {
+    toString$0(_) {
+      var $constructor = this.constructor,
+        $name = $constructor == null ? null : $constructor.name;
+      return "Closure '" + A.unminifyOrTag($name == null ? "unknown" : $name) + "'";
+    },
+    $isFunction: 1,
+    get$$call() {
+      return this;
+    },
+    "call*": "call$1",
+    $requiredArgCount: 1,
+    $defaultValues: null
+  };
+  A.Closure0Args.prototype = {"call*": "call$0", $requiredArgCount: 0};
+  A.Closure2Args.prototype = {"call*": "call$2", $requiredArgCount: 2};
+  A.TearOffClosure.prototype = {};
+  A.StaticClosure.prototype = {
+    toString$0(_) {
+      var $name = this.$static_name;
+      if ($name == null)
+        return "Closure of unknown static method";
+      return "Closure '" + A.unminifyOrTag($name) + "'";
+    }
+  };
+  A.BoundClosure.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      if (this === other)
+        return true;
+      if (!(other instanceof A.BoundClosure))
+        return false;
+      return this.$_target === other.$_target && this._receiver === other._receiver;
+    },
+    get$hashCode(_) {
+      return (A.objectHashCode(this._receiver) ^ A.Primitives_objectHashCode(this.$_target)) >>> 0;
+    },
+    toString$0(_) {
+      return "Closure '" + this.$_name + "' of " + ("Instance of '" + A.Primitives_objectTypeName(this._receiver) + "'");
+    }
+  };
+  A._CyclicInitializationError.prototype = {
+    toString$0(_) {
+      return "Reading static variable '" + this.variableName + "' during its initialization";
+    }
+  };
+  A.RuntimeError.prototype = {
+    toString$0(_) {
+      return "RuntimeError: " + this.message;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A._Required.prototype = {};
+  A.JsLinkedHashMap.prototype = {
+    get$length(_) {
+      return this.__js_helper$_length;
+    },
+    get$isEmpty(_) {
+      return this.__js_helper$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this.__js_helper$_length !== 0;
+    },
+    get$keys(_) {
+      return new A.LinkedHashMapKeyIterable(this, A._instanceType(this)._eval$1("LinkedHashMapKeyIterable<1>"));
+    },
+    get$values(_) {
+      var t1 = A._instanceType(this);
+      return A.MappedIterable_MappedIterable(new A.LinkedHashMapKeyIterable(this, t1._eval$1("LinkedHashMapKeyIterable<1>")), new A.JsLinkedHashMap_values_closure(this), t1._precomputed1, t1._rest[1]);
+    },
+    containsKey$1(key) {
+      var strings, nums;
+      if (typeof key == "string") {
+        strings = this.__js_helper$_strings;
+        if (strings == null)
+          return false;
+        return strings[key] != null;
+      } else if (typeof key == "number" && (key & 0x3fffffff) === key) {
+        nums = this.__js_helper$_nums;
+        if (nums == null)
+          return false;
+        return nums[key] != null;
+      } else
+        return this.internalContainsKey$1(key);
+    },
+    internalContainsKey$1(key) {
+      var rest = this.__js_helper$_rest;
+      if (rest == null)
+        return false;
+      return this.internalFindBucketIndex$2(rest[this.internalComputeHashCode$1(key)], key) >= 0;
+    },
+    addAll$1(_, other) {
+      other.forEach$1(0, new A.JsLinkedHashMap_addAll_closure(this));
+    },
+    $index(_, key) {
+      var strings, cell, t1, nums, _null = null;
+      if (typeof key == "string") {
+        strings = this.__js_helper$_strings;
+        if (strings == null)
+          return _null;
+        cell = strings[key];
+        t1 = cell == null ? _null : cell.hashMapCellValue;
+        return t1;
+      } else if (typeof key == "number" && (key & 0x3fffffff) === key) {
+        nums = this.__js_helper$_nums;
+        if (nums == null)
+          return _null;
+        cell = nums[key];
+        t1 = cell == null ? _null : cell.hashMapCellValue;
+        return t1;
+      } else
+        return this.internalGet$1(key);
+    },
+    internalGet$1(key) {
+      var bucket, index,
+        rest = this.__js_helper$_rest;
+      if (rest == null)
+        return null;
+      bucket = rest[this.internalComputeHashCode$1(key)];
+      index = this.internalFindBucketIndex$2(bucket, key);
+      if (index < 0)
+        return null;
+      return bucket[index].hashMapCellValue;
+    },
+    $indexSet(_, key, value) {
+      var strings, nums, _this = this;
+      if (typeof key == "string") {
+        strings = _this.__js_helper$_strings;
+        _this.__js_helper$_addHashTableEntry$3(strings == null ? _this.__js_helper$_strings = _this._newHashTable$0() : strings, key, value);
+      } else if (typeof key == "number" && (key & 0x3fffffff) === key) {
+        nums = _this.__js_helper$_nums;
+        _this.__js_helper$_addHashTableEntry$3(nums == null ? _this.__js_helper$_nums = _this._newHashTable$0() : nums, key, value);
+      } else
+        _this.internalSet$2(key, value);
+    },
+    internalSet$2(key, value) {
+      var hash, bucket, index, _this = this,
+        rest = _this.__js_helper$_rest;
+      if (rest == null)
+        rest = _this.__js_helper$_rest = _this._newHashTable$0();
+      hash = _this.internalComputeHashCode$1(key);
+      bucket = rest[hash];
+      if (bucket == null)
+        rest[hash] = [_this.__js_helper$_newLinkedCell$2(key, value)];
+      else {
+        index = _this.internalFindBucketIndex$2(bucket, key);
+        if (index >= 0)
+          bucket[index].hashMapCellValue = value;
+        else
+          bucket.push(_this.__js_helper$_newLinkedCell$2(key, value));
+      }
+    },
+    putIfAbsent$2(key, ifAbsent) {
+      var t1, value, _this = this;
+      if (_this.containsKey$1(key)) {
+        t1 = _this.$index(0, key);
+        return t1 == null ? A._instanceType(_this)._rest[1]._as(t1) : t1;
+      }
+      value = ifAbsent.call$0();
+      _this.$indexSet(0, key, value);
+      return value;
+    },
+    remove$1(_, key) {
+      var _this = this;
+      if (typeof key == "string")
+        return _this.__js_helper$_removeHashTableEntry$2(_this.__js_helper$_strings, key);
+      else if (typeof key == "number" && (key & 0x3fffffff) === key)
+        return _this.__js_helper$_removeHashTableEntry$2(_this.__js_helper$_nums, key);
+      else
+        return _this.internalRemove$1(key);
+    },
+    internalRemove$1(key) {
+      var hash, bucket, index, cell, _this = this,
+        rest = _this.__js_helper$_rest;
+      if (rest == null)
+        return null;
+      hash = _this.internalComputeHashCode$1(key);
+      bucket = rest[hash];
+      index = _this.internalFindBucketIndex$2(bucket, key);
+      if (index < 0)
+        return null;
+      cell = bucket.splice(index, 1)[0];
+      _this.__js_helper$_unlinkCell$1(cell);
+      if (bucket.length === 0)
+        delete rest[hash];
+      return cell.hashMapCellValue;
+    },
+    clear$0(_) {
+      var _this = this;
+      if (_this.__js_helper$_length > 0) {
+        _this.__js_helper$_strings = _this.__js_helper$_nums = _this.__js_helper$_rest = _this.__js_helper$_first = _this.__js_helper$_last = null;
+        _this.__js_helper$_length = 0;
+        _this.__js_helper$_modified$0();
+      }
+    },
+    forEach$1(_, action) {
+      var _this = this,
+        cell = _this.__js_helper$_first,
+        modifications = _this.__js_helper$_modifications;
+      for (; cell != null;) {
+        action.call$2(cell.hashMapCellKey, cell.hashMapCellValue);
+        if (modifications !== _this.__js_helper$_modifications)
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+        cell = cell.__js_helper$_next;
+      }
+    },
+    __js_helper$_addHashTableEntry$3(table, key, value) {
+      var cell = table[key];
+      if (cell == null)
+        table[key] = this.__js_helper$_newLinkedCell$2(key, value);
+      else
+        cell.hashMapCellValue = value;
+    },
+    __js_helper$_removeHashTableEntry$2(table, key) {
+      var cell;
+      if (table == null)
+        return null;
+      cell = table[key];
+      if (cell == null)
+        return null;
+      this.__js_helper$_unlinkCell$1(cell);
+      delete table[key];
+      return cell.hashMapCellValue;
+    },
+    __js_helper$_modified$0() {
+      this.__js_helper$_modifications = this.__js_helper$_modifications + 1 & 1073741823;
+    },
+    __js_helper$_newLinkedCell$2(key, value) {
+      var t1, _this = this,
+        cell = new A.LinkedHashMapCell(key, value);
+      if (_this.__js_helper$_first == null)
+        _this.__js_helper$_first = _this.__js_helper$_last = cell;
+      else {
+        t1 = _this.__js_helper$_last;
+        t1.toString;
+        cell.__js_helper$_previous = t1;
+        _this.__js_helper$_last = t1.__js_helper$_next = cell;
+      }
+      ++_this.__js_helper$_length;
+      _this.__js_helper$_modified$0();
+      return cell;
+    },
+    __js_helper$_unlinkCell$1(cell) {
+      var _this = this,
+        previous = cell.__js_helper$_previous,
+        next = cell.__js_helper$_next;
+      if (previous == null)
+        _this.__js_helper$_first = next;
+      else
+        previous.__js_helper$_next = next;
+      if (next == null)
+        _this.__js_helper$_last = previous;
+      else
+        next.__js_helper$_previous = previous;
+      --_this.__js_helper$_length;
+      _this.__js_helper$_modified$0();
+    },
+    internalComputeHashCode$1(key) {
+      return J.get$hashCode$(key) & 1073741823;
+    },
+    internalFindBucketIndex$2(bucket, key) {
+      var $length, i;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; ++i)
+        if (J.$eq$(bucket[i].hashMapCellKey, key))
+          return i;
+      return -1;
+    },
+    toString$0(_) {
+      return A.MapBase_mapToString(this);
+    },
+    _newHashTable$0() {
+      var table = Object.create(null);
+      table["<non-identifier-key>"] = table;
+      delete table["<non-identifier-key>"];
+      return table;
+    }
+  };
+  A.JsLinkedHashMap_values_closure.prototype = {
+    call$1(each) {
+      var t1 = this.$this,
+        t2 = t1.$index(0, each);
+      return t2 == null ? A._instanceType(t1)._rest[1]._as(t2) : t2;
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("2(1)");
+    }
+  };
+  A.JsLinkedHashMap_addAll_closure.prototype = {
+    call$2(key, value) {
+      this.$this.$indexSet(0, key, value);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("~(1,2)");
+    }
+  };
+  A.LinkedHashMapCell.prototype = {};
+  A.LinkedHashMapKeyIterable.prototype = {
+    get$length(_) {
+      return this.__js_helper$_map.__js_helper$_length;
+    },
+    get$isEmpty(_) {
+      return this.__js_helper$_map.__js_helper$_length === 0;
+    },
+    get$iterator(_) {
+      var t1 = this.__js_helper$_map,
+        t2 = new A.LinkedHashMapKeyIterator(t1, t1.__js_helper$_modifications);
+      t2.__js_helper$_cell = t1.__js_helper$_first;
+      return t2;
+    },
+    contains$1(_, element) {
+      return this.__js_helper$_map.containsKey$1(element);
+    }
+  };
+  A.LinkedHashMapKeyIterator.prototype = {
+    get$current(_) {
+      return this.__js_helper$_current;
+    },
+    moveNext$0() {
+      var cell, _this = this,
+        t1 = _this.__js_helper$_map;
+      if (_this.__js_helper$_modifications !== t1.__js_helper$_modifications)
+        throw A.wrapException(A.ConcurrentModificationError$(t1));
+      cell = _this.__js_helper$_cell;
+      if (cell == null) {
+        _this.__js_helper$_current = null;
+        return false;
+      } else {
+        _this.__js_helper$_current = cell.hashMapCellKey;
+        _this.__js_helper$_cell = cell.__js_helper$_next;
+        return true;
+      }
+    }
+  };
+  A.JsIdentityLinkedHashMap.prototype = {
+    internalComputeHashCode$1(key) {
+      return A.objectHashCode(key) & 1073741823;
+    },
+    internalFindBucketIndex$2(bucket, key) {
+      var $length, i, t1;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; ++i) {
+        t1 = bucket[i].hashMapCellKey;
+        if (t1 == null ? key == null : t1 === key)
+          return i;
+      }
+      return -1;
+    }
+  };
+  A.JsConstantLinkedHashMap.prototype = {
+    internalComputeHashCode$1(key) {
+      return A.constantHashCode(key) & 1073741823;
+    },
+    internalFindBucketIndex$2(bucket, key) {
+      var $length, i;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; ++i)
+        if (J.$eq$(bucket[i].hashMapCellKey, key))
+          return i;
+      return -1;
+    }
+  };
+  A.initHooks_closure.prototype = {
+    call$1(o) {
+      return this.getTag(o);
+    },
+    $signature: 105
+  };
+  A.initHooks_closure0.prototype = {
+    call$2(o, tag) {
+      return this.getUnknownTag(o, tag);
+    },
+    $signature: 389
+  };
+  A.initHooks_closure1.prototype = {
+    call$1(tag) {
+      return this.prototypeForTag(tag);
+    },
+    $signature: 170
+  };
+  A._Record.prototype = {
+    toString$0(_) {
+      return this._toString$1(false);
+    },
+    _toString$1(safe) {
+      var t2, separator, i, key, value,
+        keys = this._fieldKeys$0(),
+        values = this._getFieldValues$0(),
+        t1 = (safe ? "" + "Record " : "") + "(";
+      for (t2 = keys.length, separator = "", i = 0; i < t2; ++i, separator = ", ") {
+        t1 += separator;
+        key = keys[i];
+        if (typeof key == "string")
+          t1 = t1 + key + ": ";
+        value = values[i];
+        t1 = safe ? t1 + A.Primitives_safeToString(value) : t1 + A.S(value);
+      }
+      t1 += ")";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _fieldKeys$0() {
+      var t1,
+        shapeTag = this.$shape;
+      for (; $._Record__computedFieldKeys.length <= shapeTag;)
+        $._Record__computedFieldKeys.push(null);
+      t1 = $._Record__computedFieldKeys[shapeTag];
+      if (t1 == null) {
+        t1 = this._computeFieldKeys$0();
+        $._Record__computedFieldKeys[shapeTag] = t1;
+      }
+      return t1;
+    },
+    _computeFieldKeys$0() {
+      var i, names, last,
+        recipe = this.$recipe,
+        position = recipe.indexOf("("),
+        joinedNames = recipe.substring(1, position),
+        fields = recipe.substring(position),
+        arity = fields === "()" ? 0 : fields.replace(/[^,]/g, "").length + 1,
+        t1 = type$.Object,
+        result = J.JSArray_JSArray$allocateGrowable(arity, t1);
+      for (i = 0; i < arity; ++i)
+        result[i] = i;
+      if (joinedNames !== "") {
+        names = joinedNames.split(",");
+        i = names.length;
+        for (last = arity; i > 0;) {
+          --last;
+          --i;
+          result[last] = names[i];
+        }
+      }
+      return A.List_List$unmodifiable(result, t1);
+    }
+  };
+  A._Record2.prototype = {
+    _getFieldValues$0() {
+      return [this._0, this._1];
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A._Record2 && this.$shape === other.$shape && J.$eq$(this._0, other._0) && J.$eq$(this._1, other._1);
+    },
+    get$hashCode(_) {
+      return A.Object_hash(this.$shape, this._0, this._1, B.C_SentinelValue);
+    }
+  };
+  A._Record1.prototype = {
+    _getFieldValues$0() {
+      return [this._0];
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A._Record1 && this.$shape === other.$shape && J.$eq$(this._0, other._0);
+    },
+    get$hashCode(_) {
+      return A.Object_hash(this.$shape, this._0, B.C_SentinelValue, B.C_SentinelValue);
+    }
+  };
+  A._Record3.prototype = {
+    _getFieldValues$0() {
+      return [this._0, this._1, this._2];
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A._Record3 && _this.$shape === other.$shape && J.$eq$(_this._0, other._0) && J.$eq$(_this._1, other._1) && J.$eq$(_this._2, other._2);
+    },
+    get$hashCode(_) {
+      var _this = this;
+      return A.Object_hash(_this.$shape, _this._0, _this._1, _this._2);
+    }
+  };
+  A._RecordN.prototype = {
+    _getFieldValues$0() {
+      return this._values;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A._RecordN && this.$shape === other.$shape && A._RecordN__equalValues(this._values, other._values);
+    },
+    get$hashCode(_) {
+      return A.Object_hash(this.$shape, A.Object_hashAll(this._values), B.C_SentinelValue, B.C_SentinelValue);
+    }
+  };
+  A.JSSyntaxRegExp.prototype = {
+    toString$0(_) {
+      return "RegExp/" + this.pattern + "/" + this._nativeRegExp.flags;
+    },
+    get$_nativeGlobalVersion() {
+      var _this = this,
+        t1 = _this._nativeGlobalRegExp;
+      if (t1 != null)
+        return t1;
+      t1 = _this._nativeRegExp;
+      return _this._nativeGlobalRegExp = A.JSSyntaxRegExp_makeNative(_this.pattern, t1.multiline, !t1.ignoreCase, t1.unicode, t1.dotAll, true);
+    },
+    get$_nativeAnchoredVersion() {
+      var _this = this,
+        t1 = _this._nativeAnchoredRegExp;
+      if (t1 != null)
+        return t1;
+      t1 = _this._nativeRegExp;
+      return _this._nativeAnchoredRegExp = A.JSSyntaxRegExp_makeNative(_this.pattern + "|()", t1.multiline, !t1.ignoreCase, t1.unicode, t1.dotAll, true);
+    },
+    firstMatch$1(string) {
+      var m = this._nativeRegExp.exec(string);
+      if (m == null)
+        return null;
+      return new A._MatchImplementation(m);
+    },
+    allMatches$2(_, string, start) {
+      var t1 = string.length;
+      if (start > t1)
+        throw A.wrapException(A.RangeError$range(start, 0, t1, null, null));
+      return new A._AllMatchesIterable(this, string, start);
+    },
+    allMatches$1(_, string) {
+      return this.allMatches$2(0, string, 0);
+    },
+    _execGlobal$2(string, start) {
+      var match,
+        regexp = this.get$_nativeGlobalVersion();
+      regexp.lastIndex = start;
+      match = regexp.exec(string);
+      if (match == null)
+        return null;
+      return new A._MatchImplementation(match);
+    },
+    _execAnchored$2(string, start) {
+      var match,
+        regexp = this.get$_nativeAnchoredVersion();
+      regexp.lastIndex = start;
+      match = regexp.exec(string);
+      if (match == null)
+        return null;
+      if (match.pop() != null)
+        return null;
+      return new A._MatchImplementation(match);
+    },
+    matchAsPrefix$2(_, string, start) {
+      if (start < 0 || start > string.length)
+        throw A.wrapException(A.RangeError$range(start, 0, string.length, null, null));
+      return this._execAnchored$2(string, start);
+    }
+  };
+  A._MatchImplementation.prototype = {
+    get$start(_) {
+      return this._match.index;
+    },
+    get$end(_) {
+      var t1 = this._match;
+      return t1.index + t1[0].length;
+    },
+    $isMatch: 1,
+    $isRegExpMatch: 1
+  };
+  A._AllMatchesIterable.prototype = {
+    get$iterator(_) {
+      return new A._AllMatchesIterator(this._re, this.__js_helper$_string, this.__js_helper$_start);
+    }
+  };
+  A._AllMatchesIterator.prototype = {
+    get$current(_) {
+      var t1 = this.__js_helper$_current;
+      return t1 == null ? type$.RegExpMatch._as(t1) : t1;
+    },
+    moveNext$0() {
+      var t1, t2, t3, match, nextIndex, _this = this,
+        string = _this.__js_helper$_string;
+      if (string == null)
+        return false;
+      t1 = _this._nextIndex;
+      t2 = string.length;
+      if (t1 <= t2) {
+        t3 = _this._regExp;
+        match = t3._execGlobal$2(string, t1);
+        if (match != null) {
+          _this.__js_helper$_current = match;
+          nextIndex = match.get$end(0);
+          if (match._match.index === nextIndex) {
+            if (t3._nativeRegExp.unicode) {
+              t1 = _this._nextIndex;
+              t3 = t1 + 1;
+              if (t3 < t2) {
+                t1 = string.charCodeAt(t1);
+                if (t1 >= 55296 && t1 <= 56319) {
+                  t1 = string.charCodeAt(t3);
+                  t1 = t1 >= 56320 && t1 <= 57343;
+                } else
+                  t1 = false;
+              } else
+                t1 = false;
+            } else
+              t1 = false;
+            nextIndex = (t1 ? nextIndex + 1 : nextIndex) + 1;
+          }
+          _this._nextIndex = nextIndex;
+          return true;
+        }
+      }
+      _this.__js_helper$_string = _this.__js_helper$_current = null;
+      return false;
+    }
+  };
+  A.StringMatch.prototype = {
+    get$end(_) {
+      return this.start + this.pattern.length;
+    },
+    $isMatch: 1,
+    get$start(receiver) {
+      return this.start;
+    }
+  };
+  A._StringAllMatchesIterable.prototype = {
+    get$iterator(_) {
+      return new A._StringAllMatchesIterator(this._input, this._pattern, this.__js_helper$_index);
+    },
+    get$first(_) {
+      var t1 = this._pattern,
+        index = this._input.indexOf(t1, this.__js_helper$_index);
+      if (index >= 0)
+        return new A.StringMatch(index, t1);
+      throw A.wrapException(A.IterableElementError_noElement());
+    }
+  };
+  A._StringAllMatchesIterator.prototype = {
+    moveNext$0() {
+      var index, end, _this = this,
+        t1 = _this.__js_helper$_index,
+        t2 = _this._pattern,
+        t3 = t2.length,
+        t4 = _this._input,
+        t5 = t4.length;
+      if (t1 + t3 > t5) {
+        _this.__js_helper$_current = null;
+        return false;
+      }
+      index = t4.indexOf(t2, t1);
+      if (index < 0) {
+        _this.__js_helper$_index = t5 + 1;
+        _this.__js_helper$_current = null;
+        return false;
+      }
+      end = index + t3;
+      _this.__js_helper$_current = new A.StringMatch(index, t2);
+      _this.__js_helper$_index = end === _this.__js_helper$_index ? end + 1 : end;
+      return true;
+    },
+    get$current(_) {
+      var t1 = this.__js_helper$_current;
+      t1.toString;
+      return t1;
+    }
+  };
+  A._Cell.prototype = {
+    readLocal$1$0() {
+      var t1 = this.__late_helper$_value;
+      if (t1 === this)
+        A.throwExpression(new A.LateError("Local '' has not been initialized."));
+      return t1;
+    },
+    readLocal$0() {
+      return this.readLocal$1$0(type$.dynamic);
+    },
+    _readLocal$0() {
+      var t1 = this.__late_helper$_value;
+      if (t1 === this)
+        throw A.wrapException(new A.LateError("Local '' has not been initialized."));
+      return t1;
+    }
+  };
+  A.NativeByteBuffer.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_ByteBuffer_EOZ;
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isByteBuffer: 1
+  };
+  A.NativeTypedData.prototype = {
+    _invalidPosition$3(receiver, position, $length, $name) {
+      var t1 = A.RangeError$range(position, 0, $length, $name, null);
+      throw A.wrapException(t1);
+    },
+    _checkPosition$3(receiver, position, $length, $name) {
+      if (position >>> 0 !== position || position > $length)
+        this._invalidPosition$3(receiver, position, $length, $name);
+    }
+  };
+  A.NativeByteData.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_ByteData_mF8;
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isByteData: 1
+  };
+  A.NativeTypedArray.prototype = {
+    get$length(receiver) {
+      return receiver.length;
+    },
+    _setRangeFast$4(receiver, start, end, source, skipCount) {
+      var count, sourceLength,
+        targetLength = receiver.length;
+      this._checkPosition$3(receiver, start, targetLength, "start");
+      this._checkPosition$3(receiver, end, targetLength, "end");
+      if (start > end)
+        throw A.wrapException(A.RangeError$range(start, 0, end, null, null));
+      count = end - start;
+      if (skipCount < 0)
+        throw A.wrapException(A.ArgumentError$(skipCount, null));
+      sourceLength = source.length;
+      if (sourceLength - skipCount < count)
+        throw A.wrapException(A.StateError$("Not enough elements"));
+      if (skipCount !== 0 || sourceLength !== count)
+        source = source.subarray(skipCount, skipCount + count);
+      receiver.set(source, start);
+    },
+    $isJavaScriptIndexingBehavior: 1
+  };
+  A.NativeTypedArrayOfDouble.prototype = {
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    $indexSet(receiver, index, value) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      receiver[index] = value;
+    },
+    setRange$4(receiver, start, end, iterable, skipCount) {
+      if (type$.NativeTypedArrayOfDouble._is(iterable)) {
+        this._setRangeFast$4(receiver, start, end, iterable, skipCount);
+        return;
+      }
+      this.super$ListBase$setRange(receiver, start, end, iterable, skipCount);
+    },
+    $isEfficientLengthIterable: 1,
+    $isIterable: 1,
+    $isList: 1
+  };
+  A.NativeTypedArrayOfInt.prototype = {
+    $indexSet(receiver, index, value) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      receiver[index] = value;
+    },
+    setRange$4(receiver, start, end, iterable, skipCount) {
+      if (type$.NativeTypedArrayOfInt._is(iterable)) {
+        this._setRangeFast$4(receiver, start, end, iterable, skipCount);
+        return;
+      }
+      this.super$ListBase$setRange(receiver, start, end, iterable, skipCount);
+    },
+    $isEfficientLengthIterable: 1,
+    $isIterable: 1,
+    $isList: 1
+  };
+  A.NativeFloat32List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Float32List_Ymk;
+    },
+    sublist$2(receiver, start, end) {
+      return new Float32Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isFloat32List: 1
+  };
+  A.NativeFloat64List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Float64List_Ymk;
+    },
+    sublist$2(receiver, start, end) {
+      return new Float64Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isFloat64List: 1
+  };
+  A.NativeInt16List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Int16List_cot;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Int16Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isInt16List: 1
+  };
+  A.NativeInt32List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Int32List_m1p;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Int32Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isInt32List: 1
+  };
+  A.NativeInt8List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Int8List_woc;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Int8Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isInt8List: 1
+  };
+  A.NativeUint16List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Uint16List_2mh;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Uint16Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isUint16List: 1
+  };
+  A.NativeUint32List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Uint32List_2mh;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Uint32Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isUint32List: 1
+  };
+  A.NativeUint8ClampedList.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Uint8ClampedList_9Bb;
+    },
+    get$length(receiver) {
+      return receiver.length;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Uint8ClampedArray(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isUint8ClampedList: 1
+  };
+  A.NativeUint8List.prototype = {
+    get$runtimeType(receiver) {
+      return B.Type_Uint8List_CSc;
+    },
+    get$length(receiver) {
+      return receiver.length;
+    },
+    $index(receiver, index) {
+      A._checkValidIndex(index, receiver, receiver.length);
+      return receiver[index];
+    },
+    sublist$2(receiver, start, end) {
+      return new Uint8Array(receiver.subarray(start, A._checkValidRange(start, end, receiver.length)));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    $isTrustedGetRuntimeType: 1,
+    $isNativeUint8List: 1,
+    $isUint8List: 1
+  };
+  A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin.prototype = {};
+  A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin.prototype = {};
+  A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin.prototype = {};
+  A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin.prototype = {};
+  A.Rti.prototype = {
+    _eval$1(recipe) {
+      return A._Universe_evalInEnvironment(init.typeUniverse, this, recipe);
+    },
+    _bind$1(typeOrTuple) {
+      return A._Universe_bind(init.typeUniverse, this, typeOrTuple);
+    }
+  };
+  A._FunctionParameters.prototype = {};
+  A._Type.prototype = {
+    toString$0(_) {
+      return A._rtiToString(this._rti, null);
+    }
+  };
+  A._Error.prototype = {
+    toString$0(_) {
+      return this.__rti$_message;
+    }
+  };
+  A._TypeError.prototype = {
+    get$message(_) {
+      return this.__rti$_message;
+    },
+    $isTypeError: 1
+  };
+  A._AsyncRun__initializeScheduleImmediate_internalCallback.prototype = {
+    call$1(_) {
+      var t1 = this._box_0,
+        f = t1.storedCallback;
+      t1.storedCallback = null;
+      f.call$0();
+    },
+    $signature: 54
+  };
+  A._AsyncRun__initializeScheduleImmediate_closure.prototype = {
+    call$1(callback) {
+      var t1, t2;
+      this._box_0.storedCallback = callback;
+      t1 = this.div;
+      t2 = this.span;
+      t1.firstChild ? t1.removeChild(t2) : t1.appendChild(t2);
+    },
+    $signature: 35
+  };
+  A._AsyncRun__scheduleImmediateJsOverride_internalCallback.prototype = {
+    call$0() {
+      this.callback.call$0();
+    },
+    $signature: 1
+  };
+  A._AsyncRun__scheduleImmediateWithSetImmediate_internalCallback.prototype = {
+    call$0() {
+      this.callback.call$0();
+    },
+    $signature: 1
+  };
+  A._TimerImpl.prototype = {
+    _TimerImpl$2(milliseconds, callback) {
+      if (self.setTimeout != null)
+        this._handle = self.setTimeout(A.convertDartClosureToJS(new A._TimerImpl_internalCallback(this, callback), 0), milliseconds);
+      else
+        throw A.wrapException(A.UnsupportedError$("`setTimeout()` not found."));
+    },
+    _TimerImpl$periodic$2(milliseconds, callback) {
+      if (self.setTimeout != null)
+        this._handle = self.setInterval(A.convertDartClosureToJS(new A._TimerImpl$periodic_closure(this, milliseconds, Date.now(), callback), 0), milliseconds);
+      else
+        throw A.wrapException(A.UnsupportedError$("Periodic timer."));
+    },
+    cancel$0() {
+      if (self.setTimeout != null) {
+        var t1 = this._handle;
+        if (t1 == null)
+          return;
+        if (this._once)
+          self.clearTimeout(t1);
+        else
+          self.clearInterval(t1);
+        this._handle = null;
+      } else
+        throw A.wrapException(A.UnsupportedError$("Canceling a timer."));
+    }
+  };
+  A._TimerImpl_internalCallback.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._handle = null;
+      t1._tick = 1;
+      this.callback.call$0();
+    },
+    $signature: 0
+  };
+  A._TimerImpl$periodic_closure.prototype = {
+    call$0() {
+      var duration, _this = this,
+        t1 = _this.$this,
+        tick = t1._tick + 1,
+        t2 = _this.milliseconds;
+      if (t2 > 0) {
+        duration = Date.now() - _this.start;
+        if (duration > (tick + 1) * t2)
+          tick = B.JSInt_methods.$tdiv(duration, t2);
+      }
+      t1._tick = tick;
+      _this.callback.call$1(t1);
+    },
+    $signature: 1
+  };
+  A._AsyncAwaitCompleter.prototype = {
+    complete$1(value) {
+      var t1, _this = this;
+      if (value == null)
+        value = _this.$ti._precomputed1._as(value);
+      if (!_this.isSync)
+        _this._future._asyncComplete$1(value);
+      else {
+        t1 = _this._future;
+        if (_this.$ti._eval$1("Future<1>")._is(value))
+          t1._chainFuture$1(value);
+        else
+          t1._completeWithValue$1(value);
+      }
+    },
+    completeError$2(e, st) {
+      var t1 = this._future;
+      if (this.isSync)
+        t1._completeError$2(e, st);
+      else
+        t1._asyncCompleteError$2(e, st);
+    }
+  };
+  A._awaitOnObject_closure.prototype = {
+    call$1(result) {
+      return this.bodyFunction.call$2(0, result);
+    },
+    $signature: 72
+  };
+  A._awaitOnObject_closure0.prototype = {
+    call$2(error, stackTrace) {
+      this.bodyFunction.call$2(1, new A.ExceptionAndStackTrace(error, stackTrace));
+    },
+    $signature: 476
+  };
+  A._wrapJsFunctionForAsync_closure.prototype = {
+    call$2(errorCode, result) {
+      this.$protected(errorCode, result);
+    },
+    $signature: 516
+  };
+  A._SyncStarIterator.prototype = {
+    get$current(_) {
+      return this._async$_current;
+    },
+    _resumeBody$2(errorCode, errorValue) {
+      var body, t1, exception;
+      errorCode = errorCode;
+      errorValue = errorValue;
+      body = this._body;
+      for (; true;)
+        try {
+          t1 = body(this, errorCode, errorValue);
+          return t1;
+        } catch (exception) {
+          errorValue = exception;
+          errorCode = 1;
+        }
+    },
+    moveNext$0() {
+      var nestedIterator, exception, value, suspendedBodies, _this = this, errorValue = null, errorCode = 0;
+      for (; true;) {
+        nestedIterator = _this._nestedIterator;
+        if (nestedIterator != null)
+          try {
+            if (nestedIterator.moveNext$0()) {
+              _this._async$_current = J.get$current$x(nestedIterator);
+              return true;
+            } else
+              _this._nestedIterator = null;
+          } catch (exception) {
+            errorValue = exception;
+            errorCode = 1;
+            _this._nestedIterator = null;
+          }
+        value = _this._resumeBody$2(errorCode, errorValue);
+        if (1 === value)
+          return true;
+        if (0 === value) {
+          _this._async$_current = null;
+          suspendedBodies = _this._suspendedBodies;
+          if (suspendedBodies == null || suspendedBodies.length === 0) {
+            _this._body = A._SyncStarIterator__terminatedBody;
+            return false;
+          }
+          _this._body = suspendedBodies.pop();
+          errorCode = 0;
+          errorValue = null;
+          continue;
+        }
+        if (2 === value) {
+          errorCode = 0;
+          errorValue = null;
+          continue;
+        }
+        if (3 === value) {
+          errorValue = _this._datum;
+          _this._datum = null;
+          suspendedBodies = _this._suspendedBodies;
+          if (suspendedBodies == null || suspendedBodies.length === 0) {
+            _this._async$_current = null;
+            _this._body = A._SyncStarIterator__terminatedBody;
+            throw errorValue;
+            return false;
+          }
+          _this._body = suspendedBodies.pop();
+          errorCode = 1;
+          continue;
+        }
+        throw A.wrapException(A.StateError$("sync*"));
+      }
+      return false;
+    },
+    _yieldStar$1(iterable) {
+      var t1, t2, _this = this;
+      if (iterable instanceof A._SyncStarIterable) {
+        t1 = iterable._outerHelper();
+        t2 = _this._suspendedBodies;
+        if (t2 == null)
+          t2 = _this._suspendedBodies = [];
+        t2.push(_this._body);
+        _this._body = t1;
+        return 2;
+      } else {
+        _this._nestedIterator = J.get$iterator$ax(iterable);
+        return 2;
+      }
+    }
+  };
+  A._SyncStarIterable.prototype = {
+    get$iterator(_) {
+      return new A._SyncStarIterator(this._outerHelper());
+    }
+  };
+  A.AsyncError.prototype = {
+    toString$0(_) {
+      return A.S(this.error);
+    },
+    $isError: 1,
+    get$stackTrace() {
+      return this.stackTrace;
+    }
+  };
+  A.Future_wait_handleError.prototype = {
+    call$2(theError, theStackTrace) {
+      var _this = this,
+        t1 = _this._box_0,
+        t2 = --t1.remaining;
+      if (t1.values != null) {
+        t1.values = null;
+        t1.error = theError;
+        t1.stackTrace = theStackTrace;
+        if (t2 === 0 || _this.eagerError)
+          _this._future._completeError$2(theError, theStackTrace);
+      } else if (t2 === 0 && !_this.eagerError) {
+        t2 = t1.error;
+        t2.toString;
+        t1 = t1.stackTrace;
+        t1.toString;
+        _this._future._completeError$2(t2, t1);
+      }
+    },
+    $signature: 68
+  };
+  A.Future_wait_closure.prototype = {
+    call$1(value) {
+      var t1, value0, t3, t4, _i, t5, _this = this,
+        t2 = _this._box_0,
+        remainingResults = --t2.remaining,
+        valueList = t2.values;
+      if (valueList != null) {
+        J.$indexSet$ax(valueList, _this.pos, value);
+        if (J.$eq$(remainingResults, 0)) {
+          t2 = _this.T;
+          t1 = A._setArrayType([], t2._eval$1("JSArray<0>"));
+          for (t3 = valueList, t4 = t3.length, _i = 0; _i < t3.length; t3.length === t4 || (0, A.throwConcurrentModificationError)(t3), ++_i) {
+            value0 = t3[_i];
+            t5 = value0;
+            if (t5 == null)
+              t5 = t2._as(t5);
+            J.add$1$ax(t1, t5);
+          }
+          _this._future._completeWithValue$1(t1);
+        }
+      } else if (J.$eq$(remainingResults, 0) && !_this.eagerError) {
+        t1 = t2.error;
+        t1.toString;
+        t2 = t2.stackTrace;
+        t2.toString;
+        _this._future._completeError$2(t1, t2);
+      }
+    },
+    $signature() {
+      return this.T._eval$1("Null(0)");
+    }
+  };
+  A._Completer.prototype = {
+    completeError$2(error, stackTrace) {
+      var replacement;
+      A.checkNotNullable(error, "error", type$.Object);
+      if ((this.future._state & 30) !== 0)
+        throw A.wrapException(A.StateError$("Future already completed"));
+      replacement = $.Zone__current.errorCallback$2(error, stackTrace);
+      if (replacement != null) {
+        error = replacement.error;
+        stackTrace = replacement.stackTrace;
+      } else if (stackTrace == null)
+        stackTrace = A.AsyncError_defaultStackTrace(error);
+      this._completeError$2(error, stackTrace);
+    },
+    completeError$1(error) {
+      return this.completeError$2(error, null);
+    }
+  };
+  A._AsyncCompleter.prototype = {
+    complete$1(value) {
+      var t1 = this.future;
+      if ((t1._state & 30) !== 0)
+        throw A.wrapException(A.StateError$("Future already completed"));
+      t1._asyncComplete$1(value);
+    },
+    complete$0() {
+      return this.complete$1(null);
+    },
+    _completeError$2(error, stackTrace) {
+      this.future._asyncCompleteError$2(error, stackTrace);
+    }
+  };
+  A._SyncCompleter.prototype = {
+    complete$1(value) {
+      var t1 = this.future;
+      if ((t1._state & 30) !== 0)
+        throw A.wrapException(A.StateError$("Future already completed"));
+      t1._complete$1(value);
+    },
+    _completeError$2(error, stackTrace) {
+      this.future._completeError$2(error, stackTrace);
+    }
+  };
+  A._FutureListener.prototype = {
+    matchesErrorTest$1(asyncError) {
+      if ((this.state & 15) !== 6)
+        return true;
+      return this.result._zone.runUnary$2$2(this.callback, asyncError.error, type$.bool, type$.Object);
+    },
+    handleError$1(asyncError) {
+      var exception,
+        errorCallback = this.errorCallback,
+        result = null,
+        t1 = type$.dynamic,
+        t2 = type$.Object,
+        t3 = asyncError.error,
+        t4 = this.result._zone;
+      if (type$.dynamic_Function_Object_StackTrace._is(errorCallback))
+        result = t4.runBinary$3$3(errorCallback, t3, asyncError.stackTrace, t1, t2, type$.StackTrace);
+      else
+        result = t4.runUnary$2$2(errorCallback, t3, t1, t2);
+      try {
+        t1 = result;
+        return t1;
+      } catch (exception) {
+        if (type$.TypeError._is(A.unwrapException(exception))) {
+          if ((this.state & 1) !== 0)
+            throw A.wrapException(A.ArgumentError$("The error handler of Future.then must return a value of the returned future's type", "onError"));
+          throw A.wrapException(A.ArgumentError$("The error handler of Future.catchError must return a value of the future's type", "onError"));
+        } else
+          throw exception;
+      }
+    }
+  };
+  A._Future.prototype = {
+    _setChained$1(source) {
+      this._state = this._state & 1 | 4;
+      this._resultOrListeners = source;
+    },
+    then$1$2$onError(_, f, onError, $R) {
+      var result, t1,
+        currentZone = $.Zone__current;
+      if (currentZone === B.C__RootZone) {
+        if (onError != null && !type$.dynamic_Function_Object_StackTrace._is(onError) && !type$.dynamic_Function_Object._is(onError))
+          throw A.wrapException(A.ArgumentError$value(onError, "onError", string$.Error_));
+      } else {
+        f = currentZone.registerUnaryCallback$2$1(f, $R._eval$1("0/"), this.$ti._precomputed1);
+        if (onError != null)
+          onError = A._registerErrorHandler(onError, currentZone);
+      }
+      result = new A._Future($.Zone__current, $R._eval$1("_Future<0>"));
+      t1 = onError == null ? 1 : 3;
+      this._addListener$1(new A._FutureListener(result, t1, f, onError, this.$ti._eval$1("@<1>")._bind$1($R)._eval$1("_FutureListener<1,2>")));
+      return result;
+    },
+    then$1$1(_, f, $R) {
+      return this.then$1$2$onError(0, f, null, $R);
+    },
+    _thenAwait$1$2(f, onError, $E) {
+      var result = new A._Future($.Zone__current, $E._eval$1("_Future<0>"));
+      this._addListener$1(new A._FutureListener(result, 19, f, onError, this.$ti._eval$1("@<1>")._bind$1($E)._eval$1("_FutureListener<1,2>")));
+      return result;
+    },
+    catchError$1(onError) {
+      var t1 = this.$ti,
+        t2 = $.Zone__current,
+        result = new A._Future(t2, t1);
+      if (t2 !== B.C__RootZone)
+        onError = A._registerErrorHandler(onError, t2);
+      this._addListener$1(new A._FutureListener(result, 2, null, onError, t1._eval$1("@<1>")._bind$1(t1._precomputed1)._eval$1("_FutureListener<1,2>")));
+      return result;
+    },
+    whenComplete$1(action) {
+      var t1 = this.$ti,
+        t2 = $.Zone__current,
+        result = new A._Future(t2, t1);
+      if (t2 !== B.C__RootZone)
+        action = t2.registerCallback$1$1(action, type$.dynamic);
+      this._addListener$1(new A._FutureListener(result, 8, action, null, t1._eval$1("@<1>")._bind$1(t1._precomputed1)._eval$1("_FutureListener<1,2>")));
+      return result;
+    },
+    _setErrorObject$1(error) {
+      this._state = this._state & 1 | 16;
+      this._resultOrListeners = error;
+    },
+    _cloneResult$1(source) {
+      this._state = source._state & 30 | this._state & 1;
+      this._resultOrListeners = source._resultOrListeners;
+    },
+    _addListener$1(listener) {
+      var _this = this,
+        t1 = _this._state;
+      if (t1 <= 3) {
+        listener._nextListener = _this._resultOrListeners;
+        _this._resultOrListeners = listener;
+      } else {
+        if ((t1 & 4) !== 0) {
+          t1 = _this._resultOrListeners;
+          if ((t1._state & 24) === 0) {
+            t1._addListener$1(listener);
+            return;
+          }
+          _this._cloneResult$1(t1);
+        }
+        _this._zone.scheduleMicrotask$1(new A._Future__addListener_closure(_this, listener));
+      }
+    },
+    _prependListeners$1(listeners) {
+      var t1, existingListeners, next, cursor, next0, _this = this, _box_0 = {};
+      _box_0.listeners = listeners;
+      if (listeners == null)
+        return;
+      t1 = _this._state;
+      if (t1 <= 3) {
+        existingListeners = _this._resultOrListeners;
+        _this._resultOrListeners = listeners;
+        if (existingListeners != null) {
+          next = listeners._nextListener;
+          for (cursor = listeners; next != null; cursor = next, next = next0)
+            next0 = next._nextListener;
+          cursor._nextListener = existingListeners;
+        }
+      } else {
+        if ((t1 & 4) !== 0) {
+          t1 = _this._resultOrListeners;
+          if ((t1._state & 24) === 0) {
+            t1._prependListeners$1(listeners);
+            return;
+          }
+          _this._cloneResult$1(t1);
+        }
+        _box_0.listeners = _this._reverseListeners$1(listeners);
+        _this._zone.scheduleMicrotask$1(new A._Future__prependListeners_closure(_box_0, _this));
+      }
+    },
+    _removeListeners$0() {
+      var current = this._resultOrListeners;
+      this._resultOrListeners = null;
+      return this._reverseListeners$1(current);
+    },
+    _reverseListeners$1(listeners) {
+      var current, prev, next;
+      for (current = listeners, prev = null; current != null; prev = current, current = next) {
+        next = current._nextListener;
+        current._nextListener = prev;
+      }
+      return prev;
+    },
+    _chainForeignFuture$1(source) {
+      var e, s, exception, _this = this;
+      _this._state ^= 2;
+      try {
+        source.then$1$2$onError(0, new A._Future__chainForeignFuture_closure(_this), new A._Future__chainForeignFuture_closure0(_this), type$.Null);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        A.scheduleMicrotask(new A._Future__chainForeignFuture_closure1(_this, e, s));
+      }
+    },
+    _complete$1(value) {
+      var listeners, _this = this,
+        t1 = _this.$ti;
+      if (t1._eval$1("Future<1>")._is(value))
+        if (t1._is(value))
+          A._Future__chainCoreFutureSync(value, _this);
+        else
+          _this._chainForeignFuture$1(value);
+      else {
+        listeners = _this._removeListeners$0();
+        _this._state = 8;
+        _this._resultOrListeners = value;
+        A._Future__propagateToListeners(_this, listeners);
+      }
+    },
+    _completeWithValue$1(value) {
+      var _this = this,
+        listeners = _this._removeListeners$0();
+      _this._state = 8;
+      _this._resultOrListeners = value;
+      A._Future__propagateToListeners(_this, listeners);
+    },
+    _completeError$2(error, stackTrace) {
+      var listeners = this._removeListeners$0();
+      this._setErrorObject$1(A.AsyncError$(error, stackTrace));
+      A._Future__propagateToListeners(this, listeners);
+    },
+    _asyncComplete$1(value) {
+      if (this.$ti._eval$1("Future<1>")._is(value)) {
+        this._chainFuture$1(value);
+        return;
+      }
+      this._asyncCompleteWithValue$1(value);
+    },
+    _asyncCompleteWithValue$1(value) {
+      this._state ^= 2;
+      this._zone.scheduleMicrotask$1(new A._Future__asyncCompleteWithValue_closure(this, value));
+    },
+    _chainFuture$1(value) {
+      if (this.$ti._is(value)) {
+        A._Future__chainCoreFutureAsync(value, this);
+        return;
+      }
+      this._chainForeignFuture$1(value);
+    },
+    _asyncCompleteError$2(error, stackTrace) {
+      this._state ^= 2;
+      this._zone.scheduleMicrotask$1(new A._Future__asyncCompleteError_closure(this, error, stackTrace));
+    },
+    $isFuture: 1
+  };
+  A._Future__addListener_closure.prototype = {
+    call$0() {
+      A._Future__propagateToListeners(this.$this, this.listener);
+    },
+    $signature: 0
+  };
+  A._Future__prependListeners_closure.prototype = {
+    call$0() {
+      A._Future__propagateToListeners(this.$this, this._box_0.listeners);
+    },
+    $signature: 0
+  };
+  A._Future__chainForeignFuture_closure.prototype = {
+    call$1(value) {
+      var error, stackTrace, exception,
+        t1 = this.$this;
+      t1._state ^= 2;
+      try {
+        t1._completeWithValue$1(t1.$ti._precomputed1._as(value));
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        stackTrace = A.getTraceFromException(exception);
+        t1._completeError$2(error, stackTrace);
+      }
+    },
+    $signature: 54
+  };
+  A._Future__chainForeignFuture_closure0.prototype = {
+    call$2(error, stackTrace) {
+      this.$this._completeError$2(error, stackTrace);
+    },
+    $signature: 53
+  };
+  A._Future__chainForeignFuture_closure1.prototype = {
+    call$0() {
+      this.$this._completeError$2(this.e, this.s);
+    },
+    $signature: 0
+  };
+  A._Future__chainCoreFutureAsync_closure.prototype = {
+    call$0() {
+      A._Future__chainCoreFutureSync(this._box_0.source, this.target);
+    },
+    $signature: 0
+  };
+  A._Future__asyncCompleteWithValue_closure.prototype = {
+    call$0() {
+      this.$this._completeWithValue$1(this.value);
+    },
+    $signature: 0
+  };
+  A._Future__asyncCompleteError_closure.prototype = {
+    call$0() {
+      this.$this._completeError$2(this.error, this.stackTrace);
+    },
+    $signature: 0
+  };
+  A._Future__propagateToListeners_handleWhenCompleteCallback.prototype = {
+    call$0() {
+      var e, s, t1, exception, t2, originalSource, _this = this, completeResult = null;
+      try {
+        t1 = _this._box_0.listener;
+        completeResult = t1.result._zone.run$1$1(0, t1.callback, type$.dynamic);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        t1 = _this.hasError && _this._box_1.source._resultOrListeners.error === e;
+        t2 = _this._box_0;
+        if (t1)
+          t2.listenerValueOrError = _this._box_1.source._resultOrListeners;
+        else
+          t2.listenerValueOrError = A.AsyncError$(e, s);
+        t2.listenerHasError = true;
+        return;
+      }
+      if (completeResult instanceof A._Future && (completeResult._state & 24) !== 0) {
+        if ((completeResult._state & 16) !== 0) {
+          t1 = _this._box_0;
+          t1.listenerValueOrError = completeResult._resultOrListeners;
+          t1.listenerHasError = true;
+        }
+        return;
+      }
+      if (completeResult instanceof A._Future) {
+        originalSource = _this._box_1.source;
+        t1 = _this._box_0;
+        t1.listenerValueOrError = J.then$1$1$x(completeResult, new A._Future__propagateToListeners_handleWhenCompleteCallback_closure(originalSource), type$.dynamic);
+        t1.listenerHasError = false;
+      }
+    },
+    $signature: 0
+  };
+  A._Future__propagateToListeners_handleWhenCompleteCallback_closure.prototype = {
+    call$1(_) {
+      return this.originalSource;
+    },
+    $signature: 393
+  };
+  A._Future__propagateToListeners_handleValueCallback.prototype = {
+    call$0() {
+      var e, s, t1, t2, t3, exception;
+      try {
+        t1 = this._box_0;
+        t2 = t1.listener;
+        t3 = t2.$ti;
+        t1.listenerValueOrError = t2.result._zone.runUnary$2$2(t2.callback, this.sourceResult, t3._eval$1("2/"), t3._precomputed1);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        t1 = this._box_0;
+        t1.listenerValueOrError = A.AsyncError$(e, s);
+        t1.listenerHasError = true;
+      }
+    },
+    $signature: 0
+  };
+  A._Future__propagateToListeners_handleError.prototype = {
+    call$0() {
+      var asyncError, e, s, t1, exception, t2, _this = this;
+      try {
+        asyncError = _this._box_1.source._resultOrListeners;
+        t1 = _this._box_0;
+        if (t1.listener.matchesErrorTest$1(asyncError) && t1.listener.errorCallback != null) {
+          t1.listenerValueOrError = t1.listener.handleError$1(asyncError);
+          t1.listenerHasError = false;
+        }
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        t1 = _this._box_1.source._resultOrListeners;
+        t2 = _this._box_0;
+        if (t1.error === e)
+          t2.listenerValueOrError = t1;
+        else
+          t2.listenerValueOrError = A.AsyncError$(e, s);
+        t2.listenerHasError = true;
+      }
+    },
+    $signature: 0
+  };
+  A._AsyncCallbackEntry.prototype = {};
+  A.Stream.prototype = {
+    get$isBroadcast() {
+      return false;
+    },
+    get$length(_) {
+      var t1 = {},
+        future = new A._Future($.Zone__current, type$._Future_int);
+      t1.count = 0;
+      this.listen$4$cancelOnError$onDone$onError(0, new A.Stream_length_closure(t1, this), true, new A.Stream_length_closure0(t1, future), future.get$_completeError());
+      return future;
+    }
+  };
+  A.Stream_Stream$fromFuture_closure.prototype = {
+    call$1(value) {
+      var t1 = this.controller;
+      t1._async$_add$1(value);
+      t1._closeUnchecked$0();
+    },
+    $signature() {
+      return this.T._eval$1("Null(0)");
+    }
+  };
+  A.Stream_Stream$fromFuture_closure0.prototype = {
+    call$2(error, stackTrace) {
+      var t1 = this.controller;
+      t1._addError$2(error, stackTrace);
+      t1._closeUnchecked$0();
+    },
+    $signature: 398
+  };
+  A.Stream_length_closure.prototype = {
+    call$1(_) {
+      ++this._box_0.count;
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("~(Stream.T)");
+    }
+  };
+  A.Stream_length_closure0.prototype = {
+    call$0() {
+      this.future._complete$1(this._box_0.count);
+    },
+    $signature: 0
+  };
+  A._StreamController.prototype = {
+    get$stream() {
+      return new A._ControllerStream(this, A._instanceType(this)._eval$1("_ControllerStream<1>"));
+    },
+    get$_pendingEvents() {
+      if ((this._state & 8) === 0)
+        return this._varData;
+      return this._varData._varData;
+    },
+    _ensurePendingEvents$0() {
+      var events, state, _this = this;
+      if ((_this._state & 8) === 0) {
+        events = _this._varData;
+        return events == null ? _this._varData = new A._PendingEvents() : events;
+      }
+      state = _this._varData;
+      events = state._varData;
+      return events == null ? state._varData = new A._PendingEvents() : events;
+    },
+    get$_subscription() {
+      var varData = this._varData;
+      return (this._state & 8) !== 0 ? varData._varData : varData;
+    },
+    _badEventState$0() {
+      if ((this._state & 4) !== 0)
+        return new A.StateError("Cannot add event after closing");
+      return new A.StateError("Cannot add event while adding a stream");
+    },
+    addStream$2$cancelOnError(source, cancelOnError) {
+      var t2, t3, t4, _this = this,
+        t1 = _this._state;
+      if (t1 >= 4)
+        throw A.wrapException(_this._badEventState$0());
+      if ((t1 & 2) !== 0) {
+        t1 = new A._Future($.Zone__current, type$._Future_dynamic);
+        t1._asyncComplete$1(null);
+        return t1;
+      }
+      t1 = _this._varData;
+      t2 = cancelOnError === true;
+      t3 = new A._Future($.Zone__current, type$._Future_dynamic);
+      t4 = t2 ? A._AddStreamState_makeErrorHandler(_this) : _this.get$_addError();
+      t4 = source.listen$4$cancelOnError$onDone$onError(0, _this.get$_async$_add(), t2, _this.get$_close(), t4);
+      t2 = _this._state;
+      if ((t2 & 1) !== 0 ? (_this.get$_subscription()._state & 4) !== 0 : (t2 & 2) === 0)
+        t4.pause$0(0);
+      _this._varData = new A._StreamControllerAddStreamState(t1, t3, t4);
+      _this._state |= 8;
+      return t3;
+    },
+    _ensureDoneFuture$0() {
+      var t1 = this._doneFuture;
+      if (t1 == null)
+        t1 = this._doneFuture = (this._state & 2) !== 0 ? $.$get$Future__nullFuture() : new A._Future($.Zone__current, type$._Future_void);
+      return t1;
+    },
+    add$1(_, value) {
+      if (this._state >= 4)
+        throw A.wrapException(this._badEventState$0());
+      this._async$_add$1(value);
+    },
+    addError$2(error, stackTrace) {
+      var replacement;
+      A.checkNotNullable(error, "error", type$.Object);
+      if (this._state >= 4)
+        throw A.wrapException(this._badEventState$0());
+      replacement = $.Zone__current.errorCallback$2(error, stackTrace);
+      if (replacement != null) {
+        error = replacement.error;
+        stackTrace = replacement.stackTrace;
+      } else if (stackTrace == null)
+        stackTrace = A.AsyncError_defaultStackTrace(error);
+      this._addError$2(error, stackTrace);
+    },
+    addError$1(error) {
+      return this.addError$2(error, null);
+    },
+    close$0(_) {
+      var _this = this,
+        t1 = _this._state;
+      if ((t1 & 4) !== 0)
+        return _this._ensureDoneFuture$0();
+      if (t1 >= 4)
+        throw A.wrapException(_this._badEventState$0());
+      _this._closeUnchecked$0();
+      return _this._ensureDoneFuture$0();
+    },
+    _closeUnchecked$0() {
+      var t1 = this._state |= 4;
+      if ((t1 & 1) !== 0)
+        this._sendDone$0();
+      else if ((t1 & 3) === 0)
+        this._ensurePendingEvents$0().add$1(0, B.C__DelayedDone);
+    },
+    _async$_add$1(value) {
+      var t1 = this._state;
+      if ((t1 & 1) !== 0)
+        this._sendData$1(value);
+      else if ((t1 & 3) === 0)
+        this._ensurePendingEvents$0().add$1(0, new A._DelayedData(value));
+    },
+    _addError$2(error, stackTrace) {
+      var t1 = this._state;
+      if ((t1 & 1) !== 0)
+        this._sendError$2(error, stackTrace);
+      else if ((t1 & 3) === 0)
+        this._ensurePendingEvents$0().add$1(0, new A._DelayedError(error, stackTrace));
+    },
+    _close$0() {
+      var addState = this._varData;
+      this._varData = addState._varData;
+      this._state &= 4294967287;
+      addState.addStreamFuture._asyncComplete$1(null);
+    },
+    _subscribe$4(onData, onError, onDone, cancelOnError) {
+      var subscription, pendingEvents, t1, addState, _this = this;
+      if ((_this._state & 3) !== 0)
+        throw A.wrapException(A.StateError$("Stream has already been listened to."));
+      subscription = A._ControllerSubscription$(_this, onData, onError, onDone, cancelOnError, A._instanceType(_this)._precomputed1);
+      pendingEvents = _this.get$_pendingEvents();
+      t1 = _this._state |= 1;
+      if ((t1 & 8) !== 0) {
+        addState = _this._varData;
+        addState._varData = subscription;
+        addState.addSubscription.resume$0(0);
+      } else
+        _this._varData = subscription;
+      subscription._setPendingEvents$1(pendingEvents);
+      subscription._guardCallback$1(new A._StreamController__subscribe_closure(_this));
+      return subscription;
+    },
+    _recordCancel$1(subscription) {
+      var onCancel, cancelResult, e, s, exception, result0, t1, _this = this, result = null;
+      if ((_this._state & 8) !== 0)
+        result = _this._varData.cancel$0();
+      _this._varData = null;
+      _this._state = _this._state & 4294967286 | 2;
+      onCancel = _this.onCancel;
+      if (onCancel != null)
+        if (result == null)
+          try {
+            cancelResult = onCancel.call$0();
+            if (cancelResult instanceof A._Future)
+              result = cancelResult;
+          } catch (exception) {
+            e = A.unwrapException(exception);
+            s = A.getTraceFromException(exception);
+            result0 = new A._Future($.Zone__current, type$._Future_void);
+            result0._asyncCompleteError$2(e, s);
+            result = result0;
+          }
+        else
+          result = result.whenComplete$1(onCancel);
+      t1 = new A._StreamController__recordCancel_complete(_this);
+      if (result != null)
+        result = result.whenComplete$1(t1);
+      else
+        t1.call$0();
+      return result;
+    },
+    _recordPause$1(subscription) {
+      if ((this._state & 8) !== 0)
+        this._varData.addSubscription.pause$0(0);
+      A._runGuarded(this.onPause);
+    },
+    _recordResume$1(subscription) {
+      if ((this._state & 8) !== 0)
+        this._varData.addSubscription.resume$0(0);
+      A._runGuarded(this.onResume);
+    },
+    $isEventSink: 1,
+    set$onPause(val) {
+      return this.onPause = val;
+    },
+    set$onResume(val) {
+      return this.onResume = val;
+    },
+    set$onCancel(val) {
+      return this.onCancel = val;
+    }
+  };
+  A._StreamController__subscribe_closure.prototype = {
+    call$0() {
+      A._runGuarded(this.$this.onListen);
+    },
+    $signature: 0
+  };
+  A._StreamController__recordCancel_complete.prototype = {
+    call$0() {
+      var doneFuture = this.$this._doneFuture;
+      if (doneFuture != null && (doneFuture._state & 30) === 0)
+        doneFuture._asyncComplete$1(null);
+    },
+    $signature: 0
+  };
+  A._SyncStreamControllerDispatch.prototype = {
+    _sendData$1(data) {
+      this.get$_subscription()._async$_add$1(data);
+    },
+    _sendError$2(error, stackTrace) {
+      this.get$_subscription()._addError$2(error, stackTrace);
+    },
+    _sendDone$0() {
+      this.get$_subscription()._close$0();
+    }
+  };
+  A._AsyncStreamControllerDispatch.prototype = {
+    _sendData$1(data) {
+      this.get$_subscription()._addPending$1(new A._DelayedData(data));
+    },
+    _sendError$2(error, stackTrace) {
+      this.get$_subscription()._addPending$1(new A._DelayedError(error, stackTrace));
+    },
+    _sendDone$0() {
+      this.get$_subscription()._addPending$1(B.C__DelayedDone);
+    }
+  };
+  A._AsyncStreamController.prototype = {};
+  A._SyncStreamController.prototype = {};
+  A._ControllerStream.prototype = {
+    get$hashCode(_) {
+      return (A.Primitives_objectHashCode(this._controller) ^ 892482866) >>> 0;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      if (this === other)
+        return true;
+      return other instanceof A._ControllerStream && other._controller === this._controller;
+    }
+  };
+  A._ControllerSubscription.prototype = {
+    _async$_onCancel$0() {
+      return this._controller._recordCancel$1(this);
+    },
+    _async$_onPause$0() {
+      this._controller._recordPause$1(this);
+    },
+    _async$_onResume$0() {
+      this._controller._recordResume$1(this);
+    }
+  };
+  A._AddStreamState.prototype = {
+    cancel$0() {
+      var cancel = this.addSubscription.cancel$0();
+      return cancel.whenComplete$1(new A._AddStreamState_cancel_closure(this));
+    }
+  };
+  A._AddStreamState_makeErrorHandler_closure.prototype = {
+    call$2(e, s) {
+      var t1 = this.controller;
+      t1._addError$2(e, s);
+      t1._close$0();
+    },
+    $signature: 53
+  };
+  A._AddStreamState_cancel_closure.prototype = {
+    call$0() {
+      this.$this.addStreamFuture._asyncComplete$1(null);
+    },
+    $signature: 1
+  };
+  A._StreamControllerAddStreamState.prototype = {};
+  A._BufferingStreamSubscription.prototype = {
+    _setPendingEvents$1(pendingEvents) {
+      var _this = this;
+      if (pendingEvents == null)
+        return;
+      _this._pending = pendingEvents;
+      if (pendingEvents.lastPendingEvent != null) {
+        _this._state = (_this._state | 128) >>> 0;
+        pendingEvents.schedule$1(_this);
+      }
+    },
+    pause$1(_, resumeSignal) {
+      var t2, t3, _this = this,
+        t1 = _this._state;
+      if ((t1 & 8) !== 0)
+        return;
+      t2 = (t1 + 256 | 4) >>> 0;
+      _this._state = t2;
+      if (t1 < 256) {
+        t3 = _this._pending;
+        if (t3 != null)
+          if (t3._state === 1)
+            t3._state = 3;
+      }
+      if ((t1 & 4) === 0 && (t2 & 64) === 0)
+        _this._guardCallback$1(_this.get$_async$_onPause());
+    },
+    pause$0(_) {
+      return this.pause$1(0, null);
+    },
+    resume$0(_) {
+      var _this = this,
+        t1 = _this._state;
+      if ((t1 & 8) !== 0)
+        return;
+      if (t1 >= 256) {
+        t1 = _this._state = t1 - 256;
+        if (t1 < 256)
+          if ((t1 & 128) !== 0 && _this._pending.lastPendingEvent != null)
+            _this._pending.schedule$1(_this);
+          else {
+            t1 = (t1 & 4294967291) >>> 0;
+            _this._state = t1;
+            if ((t1 & 64) === 0)
+              _this._guardCallback$1(_this.get$_async$_onResume());
+          }
+      }
+    },
+    cancel$0() {
+      var _this = this,
+        t1 = (_this._state & 4294967279) >>> 0;
+      _this._state = t1;
+      if ((t1 & 8) === 0)
+        _this._cancel$0();
+      t1 = _this._cancelFuture;
+      return t1 == null ? $.$get$Future__nullFuture() : t1;
+    },
+    _cancel$0() {
+      var t2, _this = this,
+        t1 = _this._state = (_this._state | 8) >>> 0;
+      if ((t1 & 128) !== 0) {
+        t2 = _this._pending;
+        if (t2._state === 1)
+          t2._state = 3;
+      }
+      if ((t1 & 64) === 0)
+        _this._pending = null;
+      _this._cancelFuture = _this._async$_onCancel$0();
+    },
+    _async$_add$1(data) {
+      var t1 = this._state;
+      if ((t1 & 8) !== 0)
+        return;
+      if (t1 < 64)
+        this._sendData$1(data);
+      else
+        this._addPending$1(new A._DelayedData(data));
+    },
+    _addError$2(error, stackTrace) {
+      var t1 = this._state;
+      if ((t1 & 8) !== 0)
+        return;
+      if (t1 < 64)
+        this._sendError$2(error, stackTrace);
+      else
+        this._addPending$1(new A._DelayedError(error, stackTrace));
+    },
+    _close$0() {
+      var _this = this,
+        t1 = _this._state;
+      if ((t1 & 8) !== 0)
+        return;
+      t1 = (t1 | 2) >>> 0;
+      _this._state = t1;
+      if (t1 < 64)
+        _this._sendDone$0();
+      else
+        _this._addPending$1(B.C__DelayedDone);
+    },
+    _async$_onPause$0() {
+    },
+    _async$_onResume$0() {
+    },
+    _async$_onCancel$0() {
+      return null;
+    },
+    _addPending$1($event) {
+      var t1, _this = this,
+        pending = _this._pending;
+      if (pending == null)
+        pending = _this._pending = new A._PendingEvents();
+      pending.add$1(0, $event);
+      t1 = _this._state;
+      if ((t1 & 128) === 0) {
+        t1 = (t1 | 128) >>> 0;
+        _this._state = t1;
+        if (t1 < 256)
+          pending.schedule$1(_this);
+      }
+    },
+    _sendData$1(data) {
+      var _this = this,
+        t1 = _this._state;
+      _this._state = (t1 | 64) >>> 0;
+      _this._zone.runUnaryGuarded$1$2(_this._onData, data, A._instanceType(_this)._eval$1("_BufferingStreamSubscription.T"));
+      _this._state = (_this._state & 4294967231) >>> 0;
+      _this._checkState$1((t1 & 4) !== 0);
+    },
+    _sendError$2(error, stackTrace) {
+      var cancelFuture, _this = this,
+        t1 = _this._state,
+        t2 = new A._BufferingStreamSubscription__sendError_sendError(_this, error, stackTrace);
+      if ((t1 & 1) !== 0) {
+        _this._state = (t1 | 16) >>> 0;
+        _this._cancel$0();
+        cancelFuture = _this._cancelFuture;
+        if (cancelFuture != null && cancelFuture !== $.$get$Future__nullFuture())
+          cancelFuture.whenComplete$1(t2);
+        else
+          t2.call$0();
+      } else {
+        t2.call$0();
+        _this._checkState$1((t1 & 4) !== 0);
+      }
+    },
+    _sendDone$0() {
+      var cancelFuture, _this = this,
+        t1 = new A._BufferingStreamSubscription__sendDone_sendDone(_this);
+      _this._cancel$0();
+      _this._state = (_this._state | 16) >>> 0;
+      cancelFuture = _this._cancelFuture;
+      if (cancelFuture != null && cancelFuture !== $.$get$Future__nullFuture())
+        cancelFuture.whenComplete$1(t1);
+      else
+        t1.call$0();
+    },
+    _guardCallback$1(callback) {
+      var _this = this,
+        t1 = _this._state;
+      _this._state = (t1 | 64) >>> 0;
+      callback.call$0();
+      _this._state = (_this._state & 4294967231) >>> 0;
+      _this._checkState$1((t1 & 4) !== 0);
+    },
+    _checkState$1(wasInputPaused) {
+      var t2, isInputPaused, _this = this,
+        t1 = _this._state;
+      if ((t1 & 128) !== 0 && _this._pending.lastPendingEvent == null) {
+        t1 = _this._state = (t1 & 4294967167) >>> 0;
+        if ((t1 & 4) !== 0)
+          if (t1 < 256) {
+            t2 = _this._pending;
+            t2 = t2 == null ? null : t2.lastPendingEvent == null;
+            t2 = t2 !== false;
+          } else
+            t2 = false;
+        else
+          t2 = false;
+        if (t2) {
+          t1 = (t1 & 4294967291) >>> 0;
+          _this._state = t1;
+        }
+      }
+      for (; true; wasInputPaused = isInputPaused) {
+        if ((t1 & 8) !== 0) {
+          _this._pending = null;
+          return;
+        }
+        isInputPaused = (t1 & 4) !== 0;
+        if (wasInputPaused === isInputPaused)
+          break;
+        _this._state = (t1 ^ 64) >>> 0;
+        if (isInputPaused)
+          _this._async$_onPause$0();
+        else
+          _this._async$_onResume$0();
+        t1 = (_this._state & 4294967231) >>> 0;
+        _this._state = t1;
+      }
+      if ((t1 & 128) !== 0 && t1 < 256)
+        _this._pending.schedule$1(_this);
+    },
+    $isStreamSubscription: 1
+  };
+  A._BufferingStreamSubscription__sendError_sendError.prototype = {
+    call$0() {
+      var onError, t3, t4,
+        t1 = this.$this,
+        t2 = t1._state;
+      if ((t2 & 8) !== 0 && (t2 & 16) === 0)
+        return;
+      t1._state = (t2 | 64) >>> 0;
+      onError = t1._onError;
+      t2 = this.error;
+      t3 = type$.Object;
+      t4 = t1._zone;
+      if (type$.void_Function_Object_StackTrace._is(onError))
+        t4.runBinaryGuarded$2$3(onError, t2, this.stackTrace, t3, type$.StackTrace);
+      else
+        t4.runUnaryGuarded$1$2(onError, t2, t3);
+      t1._state = (t1._state & 4294967231) >>> 0;
+    },
+    $signature: 0
+  };
+  A._BufferingStreamSubscription__sendDone_sendDone.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._state;
+      if ((t2 & 16) === 0)
+        return;
+      t1._state = (t2 | 74) >>> 0;
+      t1._zone.runGuarded$1(t1._onDone);
+      t1._state = (t1._state & 4294967231) >>> 0;
+    },
+    $signature: 0
+  };
+  A._StreamImpl.prototype = {
+    listen$4$cancelOnError$onDone$onError(_, onData, cancelOnError, onDone, onError) {
+      return this._controller._subscribe$4(onData, onError, onDone, cancelOnError === true);
+    },
+    listen$1(_, onData) {
+      return this.listen$4$cancelOnError$onDone$onError(0, onData, null, null, null);
+    },
+    listen$3$onDone$onError(_, onData, onDone, onError) {
+      return this.listen$4$cancelOnError$onDone$onError(0, onData, null, onDone, onError);
+    }
+  };
+  A._DelayedEvent.prototype = {
+    get$next() {
+      return this.next;
+    },
+    set$next(val) {
+      return this.next = val;
+    }
+  };
+  A._DelayedData.prototype = {
+    perform$1(dispatch) {
+      dispatch._sendData$1(this.value);
+    }
+  };
+  A._DelayedError.prototype = {
+    perform$1(dispatch) {
+      dispatch._sendError$2(this.error, this.stackTrace);
+    }
+  };
+  A._DelayedDone.prototype = {
+    perform$1(dispatch) {
+      dispatch._sendDone$0();
+    },
+    get$next() {
+      return null;
+    },
+    set$next(_) {
+      throw A.wrapException(A.StateError$("No events after a done."));
+    }
+  };
+  A._PendingEvents.prototype = {
+    schedule$1(dispatch) {
+      var _this = this,
+        t1 = _this._state;
+      if (t1 === 1)
+        return;
+      if (t1 >= 1) {
+        _this._state = 1;
+        return;
+      }
+      A.scheduleMicrotask(new A._PendingEvents_schedule_closure(_this, dispatch));
+      _this._state = 1;
+    },
+    add$1(_, $event) {
+      var _this = this,
+        lastEvent = _this.lastPendingEvent;
+      if (lastEvent == null)
+        _this.firstPendingEvent = _this.lastPendingEvent = $event;
+      else {
+        lastEvent.set$next($event);
+        _this.lastPendingEvent = $event;
+      }
+    }
+  };
+  A._PendingEvents_schedule_closure.prototype = {
+    call$0() {
+      var $event, nextEvent,
+        t1 = this.$this,
+        oldState = t1._state;
+      t1._state = 0;
+      if (oldState === 3)
+        return;
+      $event = t1.firstPendingEvent;
+      nextEvent = $event.get$next();
+      t1.firstPendingEvent = nextEvent;
+      if (nextEvent == null)
+        t1.lastPendingEvent = null;
+      $event.perform$1(this.dispatch);
+    },
+    $signature: 0
+  };
+  A._StreamIterator.prototype = {
+    get$current(_) {
+      if (this._async$_hasValue)
+        return this._stateData;
+      return null;
+    },
+    moveNext$0() {
+      var future, _this = this,
+        subscription = _this._subscription;
+      if (subscription != null) {
+        if (_this._async$_hasValue) {
+          future = new A._Future($.Zone__current, type$._Future_bool);
+          _this._stateData = future;
+          _this._async$_hasValue = false;
+          subscription.resume$0(0);
+          return future;
+        }
+        throw A.wrapException(A.StateError$("Already waiting for next."));
+      }
+      return _this._initializeOrDone$0();
+    },
+    _initializeOrDone$0() {
+      var future, subscription, _this = this,
+        stateData = _this._stateData;
+      if (stateData != null) {
+        future = new A._Future($.Zone__current, type$._Future_bool);
+        _this._stateData = future;
+        subscription = stateData.listen$4$cancelOnError$onDone$onError(0, _this.get$_onData(), true, _this.get$_onDone(), _this.get$_onError());
+        if (_this._stateData != null)
+          _this._subscription = subscription;
+        return future;
+      }
+      return $.$get$Future__falseFuture();
+    },
+    cancel$0() {
+      var _this = this,
+        subscription = _this._subscription,
+        stateData = _this._stateData;
+      _this._stateData = null;
+      if (subscription != null) {
+        _this._subscription = null;
+        if (!_this._async$_hasValue)
+          stateData._asyncComplete$1(false);
+        else
+          _this._async$_hasValue = false;
+        return subscription.cancel$0();
+      }
+      return $.$get$Future__nullFuture();
+    },
+    _onData$1(data) {
+      var moveNextFuture, t1, _this = this;
+      if (_this._subscription == null)
+        return;
+      moveNextFuture = _this._stateData;
+      _this._stateData = data;
+      _this._async$_hasValue = true;
+      moveNextFuture._complete$1(true);
+      if (_this._async$_hasValue) {
+        t1 = _this._subscription;
+        if (t1 != null)
+          t1.pause$0(0);
+      }
+    },
+    _onError$2(error, stackTrace) {
+      var _this = this,
+        subscription = _this._subscription,
+        moveNextFuture = _this._stateData;
+      _this._stateData = _this._subscription = null;
+      if (subscription != null)
+        moveNextFuture._completeError$2(error, stackTrace);
+      else
+        moveNextFuture._asyncCompleteError$2(error, stackTrace);
+    },
+    _onDone$0() {
+      var _this = this,
+        subscription = _this._subscription,
+        moveNextFuture = _this._stateData;
+      _this._stateData = _this._subscription = null;
+      if (subscription != null)
+        moveNextFuture._completeWithValue$1(false);
+      else
+        moveNextFuture._asyncCompleteWithValue$1(false);
+    }
+  };
+  A._ForwardingStream.prototype = {
+    get$isBroadcast() {
+      return this._async$_source.get$isBroadcast();
+    },
+    listen$4$cancelOnError$onDone$onError(_, onData, cancelOnError, onDone, onError) {
+      var t1 = this.$ti,
+        t2 = t1._rest[1],
+        t3 = $.Zone__current,
+        t4 = cancelOnError === true ? 1 : 0,
+        t5 = onError != null ? 32 : 0,
+        t6 = A._BufferingStreamSubscription__registerDataHandler(t3, onData, t2),
+        t7 = A._BufferingStreamSubscription__registerErrorHandler(t3, onError),
+        t8 = onDone == null ? A.async___nullDoneHandler$closure() : onDone;
+      t2 = new A._ForwardingStreamSubscription(this, t6, t7, t3.registerCallback$1$1(t8, type$.void), t3, t4 | t5, t1._eval$1("@<1>")._bind$1(t2)._eval$1("_ForwardingStreamSubscription<1,2>"));
+      t2._subscription = this._async$_source.listen$3$onDone$onError(0, t2.get$_handleData(), t2.get$_handleDone(), t2.get$_handleError());
+      return t2;
+    },
+    listen$1(_, onData) {
+      return this.listen$4$cancelOnError$onDone$onError(0, onData, null, null, null);
+    },
+    listen$3$onDone$onError(_, onData, onDone, onError) {
+      return this.listen$4$cancelOnError$onDone$onError(0, onData, null, onDone, onError);
+    }
+  };
+  A._ForwardingStreamSubscription.prototype = {
+    _async$_add$1(data) {
+      if ((this._state & 2) !== 0)
+        return;
+      this.super$_BufferingStreamSubscription$_add(data);
+    },
+    _addError$2(error, stackTrace) {
+      if ((this._state & 2) !== 0)
+        return;
+      this.super$_BufferingStreamSubscription$_addError(error, stackTrace);
+    },
+    _async$_onPause$0() {
+      var t1 = this._subscription;
+      if (t1 != null)
+        t1.pause$0(0);
+    },
+    _async$_onResume$0() {
+      var t1 = this._subscription;
+      if (t1 != null)
+        t1.resume$0(0);
+    },
+    _async$_onCancel$0() {
+      var subscription = this._subscription;
+      if (subscription != null) {
+        this._subscription = null;
+        return subscription.cancel$0();
+      }
+      return null;
+    },
+    _handleData$1(data) {
+      this._stream._handleData$2(data, this);
+    },
+    _handleError$2(error, stackTrace) {
+      this._addError$2(error, stackTrace);
+    },
+    _handleDone$0() {
+      this._close$0();
+    }
+  };
+  A._ExpandStream.prototype = {
+    _handleData$2(inputEvent, sink) {
+      var value, e, s, t1, exception, error, stackTrace, replacement;
+      try {
+        for (t1 = J.get$iterator$ax(this._expand.call$1(inputEvent)); t1.moveNext$0();) {
+          value = t1.get$current(t1);
+          sink._async$_add$1(value);
+        }
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        error = e;
+        stackTrace = s;
+        replacement = $.Zone__current.errorCallback$2(error, stackTrace);
+        if (replacement != null) {
+          error = replacement.error;
+          stackTrace = replacement.stackTrace;
+        }
+        sink._addError$2(error, stackTrace);
+      }
+    }
+  };
+  A._ZoneFunction.prototype = {};
+  A._ZoneSpecification.prototype = {$isZoneSpecification: 1};
+  A._ZoneDelegate.prototype = {$isZoneDelegate: 1};
+  A._Zone.prototype = {
+    _processUncaughtError$3(zone, error, stackTrace) {
+      var handler, parentDelegate, parentZone, currentZone, e, s, t1, exception,
+        implementation = this.get$_handleUncaughtError(),
+        implZone = implementation.zone;
+      if (implZone === B.C__RootZone) {
+        A._rootHandleError(error, stackTrace);
+        return;
+      }
+      handler = implementation.$function;
+      parentDelegate = implZone.get$_parentDelegate();
+      t1 = J.get$parent$z(implZone);
+      t1.toString;
+      parentZone = t1;
+      currentZone = $.Zone__current;
+      try {
+        $.Zone__current = parentZone;
+        handler.call$5(implZone, parentDelegate, zone, error, stackTrace);
+        $.Zone__current = currentZone;
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        $.Zone__current = currentZone;
+        t1 = error === e ? stackTrace : s;
+        parentZone._processUncaughtError$3(implZone, e, t1);
+      }
+    },
+    $isZone: 1
+  };
+  A._CustomZone.prototype = {
+    get$_delegate() {
+      var t1 = this._delegateCache;
+      return t1 == null ? this._delegateCache = new A._ZoneDelegate(this) : t1;
+    },
+    get$_parentDelegate() {
+      return this.parent.get$_delegate();
+    },
+    get$errorZone() {
+      return this._handleUncaughtError.zone;
+    },
+    runGuarded$1(f) {
+      var e, s, exception;
+      try {
+        this.run$1$1(0, f, type$.void);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        this._processUncaughtError$3(this, e, s);
+      }
+    },
+    runUnaryGuarded$1$2(f, arg, $T) {
+      var e, s, exception;
+      try {
+        this.runUnary$2$2(f, arg, type$.void, $T);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        this._processUncaughtError$3(this, e, s);
+      }
+    },
+    runBinaryGuarded$2$3(f, arg1, arg2, T1, T2) {
+      var e, s, exception;
+      try {
+        this.runBinary$3$3(f, arg1, arg2, type$.void, T1, T2);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        this._processUncaughtError$3(this, e, s);
+      }
+    },
+    bindCallback$1$1(f, $R) {
+      return new A._CustomZone_bindCallback_closure(this, this.registerCallback$1$1(f, $R), $R);
+    },
+    bindUnaryCallback$2$1(f, $R, $T) {
+      return new A._CustomZone_bindUnaryCallback_closure(this, this.registerUnaryCallback$2$1(f, $R, $T), $T, $R);
+    },
+    bindCallbackGuarded$1(f) {
+      return new A._CustomZone_bindCallbackGuarded_closure(this, this.registerCallback$1$1(f, type$.void));
+    },
+    $index(_, key) {
+      var value,
+        t1 = this._async$_map,
+        result = t1.$index(0, key);
+      if (result != null || t1.containsKey$1(key))
+        return result;
+      value = this.parent.$index(0, key);
+      if (value != null)
+        t1.$indexSet(0, key, value);
+      return value;
+    },
+    handleUncaughtError$2(error, stackTrace) {
+      this._processUncaughtError$3(this, error, stackTrace);
+    },
+    fork$2$specification$zoneValues(specification, zoneValues) {
+      var implementation = this._fork,
+        t1 = implementation.zone;
+      return implementation.$function.call$5(t1, t1.get$_parentDelegate(), this, specification, zoneValues);
+    },
+    run$1$1(_, f) {
+      var implementation = this._run,
+        t1 = implementation.zone;
+      return implementation.$function.call$4(t1, t1.get$_parentDelegate(), this, f);
+    },
+    runUnary$2$2(f, arg) {
+      var implementation = this._runUnary,
+        t1 = implementation.zone;
+      return implementation.$function.call$5(t1, t1.get$_parentDelegate(), this, f, arg);
+    },
+    runBinary$3$3(f, arg1, arg2) {
+      var implementation = this._runBinary,
+        t1 = implementation.zone;
+      return implementation.$function.call$6(t1, t1.get$_parentDelegate(), this, f, arg1, arg2);
+    },
+    registerCallback$1$1(callback) {
+      var implementation = this._registerCallback,
+        t1 = implementation.zone;
+      return implementation.$function.call$4(t1, t1.get$_parentDelegate(), this, callback);
+    },
+    registerUnaryCallback$2$1(callback) {
+      var implementation = this._registerUnaryCallback,
+        t1 = implementation.zone;
+      return implementation.$function.call$4(t1, t1.get$_parentDelegate(), this, callback);
+    },
+    registerBinaryCallback$3$1(callback) {
+      var implementation = this._registerBinaryCallback,
+        t1 = implementation.zone;
+      return implementation.$function.call$4(t1, t1.get$_parentDelegate(), this, callback);
+    },
+    errorCallback$2(error, stackTrace) {
+      var implementation, implementationZone;
+      A.checkNotNullable(error, "error", type$.Object);
+      implementation = this._errorCallback;
+      implementationZone = implementation.zone;
+      if (implementationZone === B.C__RootZone)
+        return null;
+      return implementation.$function.call$5(implementationZone, implementationZone.get$_parentDelegate(), this, error, stackTrace);
+    },
+    scheduleMicrotask$1(f) {
+      var implementation = this._scheduleMicrotask,
+        t1 = implementation.zone;
+      return implementation.$function.call$4(t1, t1.get$_parentDelegate(), this, f);
+    },
+    createTimer$2(duration, f) {
+      var implementation = this._createTimer,
+        t1 = implementation.zone;
+      return implementation.$function.call$5(t1, t1.get$_parentDelegate(), this, duration, f);
+    },
+    print$1(line) {
+      var implementation = this._print,
+        t1 = implementation.zone;
+      return implementation.$function.call$4(t1, t1.get$_parentDelegate(), this, line);
+    },
+    get$_run() {
+      return this._run;
+    },
+    get$_runUnary() {
+      return this._runUnary;
+    },
+    get$_runBinary() {
+      return this._runBinary;
+    },
+    get$_registerCallback() {
+      return this._registerCallback;
+    },
+    get$_registerUnaryCallback() {
+      return this._registerUnaryCallback;
+    },
+    get$_registerBinaryCallback() {
+      return this._registerBinaryCallback;
+    },
+    get$_errorCallback() {
+      return this._errorCallback;
+    },
+    get$_scheduleMicrotask() {
+      return this._scheduleMicrotask;
+    },
+    get$_createTimer() {
+      return this._createTimer;
+    },
+    get$_createPeriodicTimer() {
+      return this._createPeriodicTimer;
+    },
+    get$_print() {
+      return this._print;
+    },
+    get$_fork() {
+      return this._fork;
+    },
+    get$_handleUncaughtError() {
+      return this._handleUncaughtError;
+    },
+    get$parent(receiver) {
+      return this.parent;
+    },
+    get$_async$_map() {
+      return this._async$_map;
+    }
+  };
+  A._CustomZone_bindCallback_closure.prototype = {
+    call$0() {
+      return this.$this.run$1$1(0, this.registered, this.R);
+    },
+    $signature() {
+      return this.R._eval$1("0()");
+    }
+  };
+  A._CustomZone_bindUnaryCallback_closure.prototype = {
+    call$1(arg) {
+      var _this = this;
+      return _this.$this.runUnary$2$2(_this.registered, arg, _this.R, _this.T);
+    },
+    $signature() {
+      return this.R._eval$1("@<0>")._bind$1(this.T)._eval$1("1(2)");
+    }
+  };
+  A._CustomZone_bindCallbackGuarded_closure.prototype = {
+    call$0() {
+      return this.$this.runGuarded$1(this.registered);
+    },
+    $signature: 0
+  };
+  A._rootHandleError_closure.prototype = {
+    call$0() {
+      A.Error_throwWithStackTrace(this.error, this.stackTrace);
+    },
+    $signature: 0
+  };
+  A._RootZone.prototype = {
+    get$_run() {
+      return B._ZoneFunction__RootZone__rootRun;
+    },
+    get$_runUnary() {
+      return B._ZoneFunction__RootZone__rootRunUnary;
+    },
+    get$_runBinary() {
+      return B._ZoneFunction__RootZone__rootRunBinary;
+    },
+    get$_registerCallback() {
+      return B._ZoneFunction__RootZone__rootRegisterCallback;
+    },
+    get$_registerUnaryCallback() {
+      return B._ZoneFunction_QOa;
+    },
+    get$_registerBinaryCallback() {
+      return B._ZoneFunction_qxw;
+    },
+    get$_errorCallback() {
+      return B._ZoneFunction__RootZone__rootErrorCallback;
+    },
+    get$_scheduleMicrotask() {
+      return B._ZoneFunction__RootZone__rootScheduleMicrotask;
+    },
+    get$_createTimer() {
+      return B._ZoneFunction__RootZone__rootCreateTimer;
+    },
+    get$_createPeriodicTimer() {
+      return B._ZoneFunction_kWM;
+    },
+    get$_print() {
+      return B._ZoneFunction__RootZone__rootPrint;
+    },
+    get$_fork() {
+      return B._ZoneFunction__RootZone__rootFork;
+    },
+    get$_handleUncaughtError() {
+      return B._ZoneFunction_NIe;
+    },
+    get$parent(_) {
+      return null;
+    },
+    get$_async$_map() {
+      return $.$get$_RootZone__rootMap();
+    },
+    get$_delegate() {
+      var t1 = $._RootZone__rootDelegate;
+      return t1 == null ? $._RootZone__rootDelegate = new A._ZoneDelegate(this) : t1;
+    },
+    get$_parentDelegate() {
+      var t1 = $._RootZone__rootDelegate;
+      return t1 == null ? $._RootZone__rootDelegate = new A._ZoneDelegate(this) : t1;
+    },
+    get$errorZone() {
+      return this;
+    },
+    runGuarded$1(f) {
+      var e, s, exception;
+      try {
+        if (B.C__RootZone === $.Zone__current) {
+          f.call$0();
+          return;
+        }
+        A._rootRun(null, null, this, f);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        A._rootHandleError(e, s);
+      }
+    },
+    runUnaryGuarded$1$2(f, arg) {
+      var e, s, exception;
+      try {
+        if (B.C__RootZone === $.Zone__current) {
+          f.call$1(arg);
+          return;
+        }
+        A._rootRunUnary(null, null, this, f, arg);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        A._rootHandleError(e, s);
+      }
+    },
+    runBinaryGuarded$2$3(f, arg1, arg2) {
+      var e, s, exception;
+      try {
+        if (B.C__RootZone === $.Zone__current) {
+          f.call$2(arg1, arg2);
+          return;
+        }
+        A._rootRunBinary(null, null, this, f, arg1, arg2);
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        s = A.getTraceFromException(exception);
+        A._rootHandleError(e, s);
+      }
+    },
+    bindCallback$1$1(f, $R) {
+      return new A._RootZone_bindCallback_closure(this, f, $R);
+    },
+    bindUnaryCallback$2$1(f, $R, $T) {
+      return new A._RootZone_bindUnaryCallback_closure(this, f, $T, $R);
+    },
+    bindCallbackGuarded$1(f) {
+      return new A._RootZone_bindCallbackGuarded_closure(this, f);
+    },
+    $index(_, key) {
+      return null;
+    },
+    handleUncaughtError$2(error, stackTrace) {
+      A._rootHandleError(error, stackTrace);
+    },
+    fork$2$specification$zoneValues(specification, zoneValues) {
+      return A._rootFork(null, null, this, specification, zoneValues);
+    },
+    run$1$1(_, f) {
+      if ($.Zone__current === B.C__RootZone)
+        return f.call$0();
+      return A._rootRun(null, null, this, f);
+    },
+    runUnary$2$2(f, arg) {
+      if ($.Zone__current === B.C__RootZone)
+        return f.call$1(arg);
+      return A._rootRunUnary(null, null, this, f, arg);
+    },
+    runBinary$3$3(f, arg1, arg2) {
+      if ($.Zone__current === B.C__RootZone)
+        return f.call$2(arg1, arg2);
+      return A._rootRunBinary(null, null, this, f, arg1, arg2);
+    },
+    registerCallback$1$1(f) {
+      return f;
+    },
+    registerUnaryCallback$2$1(f) {
+      return f;
+    },
+    registerBinaryCallback$3$1(f) {
+      return f;
+    },
+    errorCallback$2(error, stackTrace) {
+      return null;
+    },
+    scheduleMicrotask$1(f) {
+      A._rootScheduleMicrotask(null, null, this, f);
+    },
+    createTimer$2(duration, f) {
+      return A.Timer__createTimer(duration, f);
+    },
+    print$1(line) {
+      A.printString(line);
+    }
+  };
+  A._RootZone_bindCallback_closure.prototype = {
+    call$0() {
+      return this.$this.run$1$1(0, this.f, this.R);
+    },
+    $signature() {
+      return this.R._eval$1("0()");
+    }
+  };
+  A._RootZone_bindUnaryCallback_closure.prototype = {
+    call$1(arg) {
+      var _this = this;
+      return _this.$this.runUnary$2$2(_this.f, arg, _this.R, _this.T);
+    },
+    $signature() {
+      return this.R._eval$1("@<0>")._bind$1(this.T)._eval$1("1(2)");
+    }
+  };
+  A._RootZone_bindCallbackGuarded_closure.prototype = {
+    call$0() {
+      return this.$this.runGuarded$1(this.f);
+    },
+    $signature: 0
+  };
+  A._HashMap.prototype = {
+    get$length(_) {
+      return this._collection$_length;
+    },
+    get$isEmpty(_) {
+      return this._collection$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._collection$_length !== 0;
+    },
+    get$keys(_) {
+      return new A._HashMapKeyIterable(this, A._instanceType(this)._eval$1("_HashMapKeyIterable<1>"));
+    },
+    get$values(_) {
+      var t1 = A._instanceType(this);
+      return A.MappedIterable_MappedIterable(new A._HashMapKeyIterable(this, t1._eval$1("_HashMapKeyIterable<1>")), new A._HashMap_values_closure(this), t1._precomputed1, t1._rest[1]);
+    },
+    containsKey$1(key) {
+      var strings, nums;
+      if (typeof key == "string" && key !== "__proto__") {
+        strings = this._strings;
+        return strings == null ? false : strings[key] != null;
+      } else if (typeof key == "number" && (key & 1073741823) === key) {
+        nums = this._nums;
+        return nums == null ? false : nums[key] != null;
+      } else
+        return this._containsKey$1(key);
+    },
+    _containsKey$1(key) {
+      var rest = this._collection$_rest;
+      if (rest == null)
+        return false;
+      return this._findBucketIndex$2(this._getBucket$2(rest, key), key) >= 0;
+    },
+    addAll$1(_, other) {
+      other.forEach$1(0, new A._HashMap_addAll_closure(this));
+    },
+    $index(_, key) {
+      var strings, t1, nums;
+      if (typeof key == "string" && key !== "__proto__") {
+        strings = this._strings;
+        t1 = strings == null ? null : A._HashMap__getTableEntry(strings, key);
+        return t1;
+      } else if (typeof key == "number" && (key & 1073741823) === key) {
+        nums = this._nums;
+        t1 = nums == null ? null : A._HashMap__getTableEntry(nums, key);
+        return t1;
+      } else
+        return this._get$1(key);
+    },
+    _get$1(key) {
+      var bucket, index,
+        rest = this._collection$_rest;
+      if (rest == null)
+        return null;
+      bucket = this._getBucket$2(rest, key);
+      index = this._findBucketIndex$2(bucket, key);
+      return index < 0 ? null : bucket[index + 1];
+    },
+    $indexSet(_, key, value) {
+      var strings, nums, _this = this;
+      if (typeof key == "string" && key !== "__proto__") {
+        strings = _this._strings;
+        _this._addHashTableEntry$3(strings == null ? _this._strings = A._HashMap__newHashTable() : strings, key, value);
+      } else if (typeof key == "number" && (key & 1073741823) === key) {
+        nums = _this._nums;
+        _this._addHashTableEntry$3(nums == null ? _this._nums = A._HashMap__newHashTable() : nums, key, value);
+      } else
+        _this._set$2(key, value);
+    },
+    _set$2(key, value) {
+      var hash, bucket, index, _this = this,
+        rest = _this._collection$_rest;
+      if (rest == null)
+        rest = _this._collection$_rest = A._HashMap__newHashTable();
+      hash = _this._computeHashCode$1(key);
+      bucket = rest[hash];
+      if (bucket == null) {
+        A._HashMap__setTableEntry(rest, hash, [key, value]);
+        ++_this._collection$_length;
+        _this._collection$_keys = null;
+      } else {
+        index = _this._findBucketIndex$2(bucket, key);
+        if (index >= 0)
+          bucket[index + 1] = value;
+        else {
+          bucket.push(key, value);
+          ++_this._collection$_length;
+          _this._collection$_keys = null;
+        }
+      }
+    },
+    remove$1(_, key) {
+      var _this = this;
+      if (typeof key == "string" && key !== "__proto__")
+        return _this._removeHashTableEntry$2(_this._strings, key);
+      else if (typeof key == "number" && (key & 1073741823) === key)
+        return _this._removeHashTableEntry$2(_this._nums, key);
+      else
+        return _this._remove$1(key);
+    },
+    _remove$1(key) {
+      var hash, bucket, index, result, _this = this,
+        rest = _this._collection$_rest;
+      if (rest == null)
+        return null;
+      hash = _this._computeHashCode$1(key);
+      bucket = rest[hash];
+      index = _this._findBucketIndex$2(bucket, key);
+      if (index < 0)
+        return null;
+      --_this._collection$_length;
+      _this._collection$_keys = null;
+      result = bucket.splice(index, 2)[1];
+      if (0 === bucket.length)
+        delete rest[hash];
+      return result;
+    },
+    forEach$1(_, action) {
+      var $length, t1, i, key, t2, _this = this,
+        keys = _this._computeKeys$0();
+      for ($length = keys.length, t1 = A._instanceType(_this)._rest[1], i = 0; i < $length; ++i) {
+        key = keys[i];
+        t2 = _this.$index(0, key);
+        action.call$2(key, t2 == null ? t1._as(t2) : t2);
+        if (keys !== _this._collection$_keys)
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+    },
+    _computeKeys$0() {
+      var strings, names, entries, index, i, nums, rest, bucket, $length, i0, _this = this,
+        result = _this._collection$_keys;
+      if (result != null)
+        return result;
+      result = A.List_List$filled(_this._collection$_length, null, false, type$.dynamic);
+      strings = _this._strings;
+      if (strings != null) {
+        names = Object.getOwnPropertyNames(strings);
+        entries = names.length;
+        for (index = 0, i = 0; i < entries; ++i) {
+          result[index] = names[i];
+          ++index;
+        }
+      } else
+        index = 0;
+      nums = _this._nums;
+      if (nums != null) {
+        names = Object.getOwnPropertyNames(nums);
+        entries = names.length;
+        for (i = 0; i < entries; ++i) {
+          result[index] = +names[i];
+          ++index;
+        }
+      }
+      rest = _this._collection$_rest;
+      if (rest != null) {
+        names = Object.getOwnPropertyNames(rest);
+        entries = names.length;
+        for (i = 0; i < entries; ++i) {
+          bucket = rest[names[i]];
+          $length = bucket.length;
+          for (i0 = 0; i0 < $length; i0 += 2) {
+            result[index] = bucket[i0];
+            ++index;
+          }
+        }
+      }
+      return _this._collection$_keys = result;
+    },
+    _addHashTableEntry$3(table, key, value) {
+      if (table[key] == null) {
+        ++this._collection$_length;
+        this._collection$_keys = null;
+      }
+      A._HashMap__setTableEntry(table, key, value);
+    },
+    _removeHashTableEntry$2(table, key) {
+      var value;
+      if (table != null && table[key] != null) {
+        value = A._HashMap__getTableEntry(table, key);
+        delete table[key];
+        --this._collection$_length;
+        this._collection$_keys = null;
+        return value;
+      } else
+        return null;
+    },
+    _computeHashCode$1(key) {
+      return J.get$hashCode$(key) & 1073741823;
+    },
+    _getBucket$2(table, key) {
+      return table[this._computeHashCode$1(key)];
+    },
+    _findBucketIndex$2(bucket, key) {
+      var $length, i;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; i += 2)
+        if (J.$eq$(bucket[i], key))
+          return i;
+      return -1;
+    }
+  };
+  A._HashMap_values_closure.prototype = {
+    call$1(each) {
+      var t1 = this.$this,
+        t2 = t1.$index(0, each);
+      return t2 == null ? A._instanceType(t1)._rest[1]._as(t2) : t2;
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("2(1)");
+    }
+  };
+  A._HashMap_addAll_closure.prototype = {
+    call$2(key, value) {
+      this.$this.$indexSet(0, key, value);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("~(1,2)");
+    }
+  };
+  A._IdentityHashMap.prototype = {
+    _computeHashCode$1(key) {
+      return A.objectHashCode(key) & 1073741823;
+    },
+    _findBucketIndex$2(bucket, key) {
+      var $length, i, t1;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; i += 2) {
+        t1 = bucket[i];
+        if (t1 == null ? key == null : t1 === key)
+          return i;
+      }
+      return -1;
+    }
+  };
+  A._HashMapKeyIterable.prototype = {
+    get$length(_) {
+      return this._map._collection$_length;
+    },
+    get$isEmpty(_) {
+      return this._map._collection$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._map._collection$_length !== 0;
+    },
+    get$iterator(_) {
+      var t1 = this._map;
+      return new A._HashMapKeyIterator(t1, t1._computeKeys$0(), this.$ti._eval$1("_HashMapKeyIterator<1>"));
+    },
+    contains$1(_, element) {
+      return this._map.containsKey$1(element);
+    }
+  };
+  A._HashMapKeyIterator.prototype = {
+    get$current(_) {
+      var t1 = this._collection$_current;
+      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
+    },
+    moveNext$0() {
+      var _this = this,
+        keys = _this._collection$_keys,
+        offset = _this._offset,
+        t1 = _this._map;
+      if (keys !== t1._collection$_keys)
+        throw A.wrapException(A.ConcurrentModificationError$(t1));
+      else if (offset >= keys.length) {
+        _this._collection$_current = null;
+        return false;
+      } else {
+        _this._collection$_current = keys[offset];
+        _this._offset = offset + 1;
+        return true;
+      }
+    }
+  };
+  A._LinkedCustomHashMap.prototype = {
+    $index(_, key) {
+      if (!this._validKey.call$1(key))
+        return null;
+      return this.super$JsLinkedHashMap$internalGet(key);
+    },
+    $indexSet(_, key, value) {
+      this.super$JsLinkedHashMap$internalSet(key, value);
+    },
+    containsKey$1(key) {
+      if (!this._validKey.call$1(key))
+        return false;
+      return this.super$JsLinkedHashMap$internalContainsKey(key);
+    },
+    remove$1(_, key) {
+      if (!this._validKey.call$1(key))
+        return null;
+      return this.super$JsLinkedHashMap$internalRemove(key);
+    },
+    internalComputeHashCode$1(key) {
+      return this._hashCode.call$1(key) & 1073741823;
+    },
+    internalFindBucketIndex$2(bucket, key) {
+      var $length, t1, i;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (t1 = this._equals, i = 0; i < $length; ++i)
+        if (t1.call$2(bucket[i].hashMapCellKey, key))
+          return i;
+      return -1;
+    }
+  };
+  A._LinkedCustomHashMap_closure.prototype = {
+    call$1(v) {
+      return this.K._is(v);
+    },
+    $signature: 128
+  };
+  A._LinkedHashSet.prototype = {
+    _newSet$0() {
+      return new A._LinkedHashSet(A._instanceType(this)._eval$1("_LinkedHashSet<1>"));
+    },
+    _newSimilarSet$1$0($R) {
+      return new A._LinkedHashSet($R._eval$1("_LinkedHashSet<0>"));
+    },
+    _newSimilarSet$0() {
+      return this._newSimilarSet$1$0(type$.dynamic);
+    },
+    get$iterator(_) {
+      var _this = this,
+        t1 = new A._LinkedHashSetIterator(_this, _this._modifications, A._instanceType(_this)._eval$1("_LinkedHashSetIterator<1>"));
+      t1._cell = _this._first;
+      return t1;
+    },
+    get$length(_) {
+      return this._collection$_length;
+    },
+    get$isEmpty(_) {
+      return this._collection$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._collection$_length !== 0;
+    },
+    contains$1(_, object) {
+      var strings, nums;
+      if (typeof object == "string" && object !== "__proto__") {
+        strings = this._strings;
+        if (strings == null)
+          return false;
+        return strings[object] != null;
+      } else if (typeof object == "number" && (object & 1073741823) === object) {
+        nums = this._nums;
+        if (nums == null)
+          return false;
+        return nums[object] != null;
+      } else
+        return this._contains$1(object);
+    },
+    _contains$1(object) {
+      var rest = this._collection$_rest;
+      if (rest == null)
+        return false;
+      return this._findBucketIndex$2(rest[this._computeHashCode$1(object)], object) >= 0;
+    },
+    get$first(_) {
+      var first = this._first;
+      if (first == null)
+        throw A.wrapException(A.StateError$("No elements"));
+      return first._element;
+    },
+    get$last(_) {
+      var last = this._last;
+      if (last == null)
+        throw A.wrapException(A.StateError$("No elements"));
+      return last._element;
+    },
+    add$1(_, element) {
+      var strings, nums, _this = this;
+      if (typeof element == "string" && element !== "__proto__") {
+        strings = _this._strings;
+        return _this._addHashTableEntry$2(strings == null ? _this._strings = A._LinkedHashSet__newHashTable() : strings, element);
+      } else if (typeof element == "number" && (element & 1073741823) === element) {
+        nums = _this._nums;
+        return _this._addHashTableEntry$2(nums == null ? _this._nums = A._LinkedHashSet__newHashTable() : nums, element);
+      } else
+        return _this._add$1(element);
+    },
+    _add$1(element) {
+      var hash, bucket, _this = this,
+        rest = _this._collection$_rest;
+      if (rest == null)
+        rest = _this._collection$_rest = A._LinkedHashSet__newHashTable();
+      hash = _this._computeHashCode$1(element);
+      bucket = rest[hash];
+      if (bucket == null)
+        rest[hash] = [_this._newLinkedCell$1(element)];
+      else {
+        if (_this._findBucketIndex$2(bucket, element) >= 0)
+          return false;
+        bucket.push(_this._newLinkedCell$1(element));
+      }
+      return true;
+    },
+    remove$1(_, object) {
+      var _this = this;
+      if (typeof object == "string" && object !== "__proto__")
+        return _this._removeHashTableEntry$2(_this._strings, object);
+      else if (typeof object == "number" && (object & 1073741823) === object)
+        return _this._removeHashTableEntry$2(_this._nums, object);
+      else
+        return _this._remove$1(object);
+    },
+    _remove$1(object) {
+      var hash, bucket, index, cell, _this = this,
+        rest = _this._collection$_rest;
+      if (rest == null)
+        return false;
+      hash = _this._computeHashCode$1(object);
+      bucket = rest[hash];
+      index = _this._findBucketIndex$2(bucket, object);
+      if (index < 0)
+        return false;
+      cell = bucket.splice(index, 1)[0];
+      if (0 === bucket.length)
+        delete rest[hash];
+      _this._unlinkCell$1(cell);
+      return true;
+    },
+    _addHashTableEntry$2(table, element) {
+      if (table[element] != null)
+        return false;
+      table[element] = this._newLinkedCell$1(element);
+      return true;
+    },
+    _removeHashTableEntry$2(table, element) {
+      var cell;
+      if (table == null)
+        return false;
+      cell = table[element];
+      if (cell == null)
+        return false;
+      this._unlinkCell$1(cell);
+      delete table[element];
+      return true;
+    },
+    _modified$0() {
+      this._modifications = this._modifications + 1 & 1073741823;
+    },
+    _newLinkedCell$1(element) {
+      var t1, _this = this,
+        cell = new A._LinkedHashSetCell(element);
+      if (_this._first == null)
+        _this._first = _this._last = cell;
+      else {
+        t1 = _this._last;
+        t1.toString;
+        cell._previous = t1;
+        _this._last = t1._next = cell;
+      }
+      ++_this._collection$_length;
+      _this._modified$0();
+      return cell;
+    },
+    _unlinkCell$1(cell) {
+      var _this = this,
+        previous = cell._previous,
+        next = cell._next;
+      if (previous == null)
+        _this._first = next;
+      else
+        previous._next = next;
+      if (next == null)
+        _this._last = previous;
+      else
+        next._previous = previous;
+      --_this._collection$_length;
+      _this._modified$0();
+    },
+    _computeHashCode$1(element) {
+      return J.get$hashCode$(element) & 1073741823;
+    },
+    _findBucketIndex$2(bucket, element) {
+      var $length, i;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; ++i)
+        if (J.$eq$(bucket[i]._element, element))
+          return i;
+      return -1;
+    }
+  };
+  A._LinkedIdentityHashSet.prototype = {
+    _newSet$0() {
+      return new A._LinkedIdentityHashSet(this.$ti);
+    },
+    _newSimilarSet$1$0($R) {
+      return new A._LinkedIdentityHashSet($R._eval$1("_LinkedIdentityHashSet<0>"));
+    },
+    _newSimilarSet$0() {
+      return this._newSimilarSet$1$0(type$.dynamic);
+    },
+    _computeHashCode$1(key) {
+      return A.objectHashCode(key) & 1073741823;
+    },
+    _findBucketIndex$2(bucket, element) {
+      var $length, i, t1;
+      if (bucket == null)
+        return -1;
+      $length = bucket.length;
+      for (i = 0; i < $length; ++i) {
+        t1 = bucket[i]._element;
+        if (t1 == null ? element == null : t1 === element)
+          return i;
+      }
+      return -1;
+    }
+  };
+  A._LinkedHashSetCell.prototype = {};
+  A._LinkedHashSetIterator.prototype = {
+    get$current(_) {
+      var t1 = this._collection$_current;
+      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
+    },
+    moveNext$0() {
+      var _this = this,
+        cell = _this._cell,
+        t1 = _this._set;
+      if (_this._modifications !== t1._modifications)
+        throw A.wrapException(A.ConcurrentModificationError$(t1));
+      else if (cell == null) {
+        _this._collection$_current = null;
+        return false;
+      } else {
+        _this._collection$_current = cell._element;
+        _this._cell = cell._next;
+        return true;
+      }
+    }
+  };
+  A.UnmodifiableListView.prototype = {
+    cast$1$0(_, $R) {
+      return new A.UnmodifiableListView(J.cast$1$0$ax(this._collection$_source, $R), $R._eval$1("UnmodifiableListView<0>"));
+    },
+    get$length(_) {
+      return J.get$length$asx(this._collection$_source);
+    },
+    $index(_, index) {
+      return J.elementAt$1$ax(this._collection$_source, index);
+    }
+  };
+  A.HashMap_HashMap$from_closure.prototype = {
+    call$2(k, v) {
+      this.result.$indexSet(0, this.K._as(k), this.V._as(v));
+    },
+    $signature: 162
+  };
+  A.LinkedHashMap_LinkedHashMap$from_closure.prototype = {
+    call$2(k, v) {
+      this.result.$indexSet(0, this.K._as(k), this.V._as(v));
+    },
+    $signature: 162
+  };
+  A.ListBase.prototype = {
+    get$iterator(receiver) {
+      return new A.ListIterator(receiver, this.get$length(receiver), A.instanceType(receiver)._eval$1("ListIterator<ListBase.E>"));
+    },
+    elementAt$1(receiver, index) {
+      return this.$index(receiver, index);
+    },
+    forEach$1(receiver, action) {
+      var i,
+        $length = this.get$length(receiver);
+      for (i = 0; i < $length; ++i) {
+        action.call$1(this.$index(receiver, i));
+        if ($length !== this.get$length(receiver))
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+    },
+    get$isEmpty(receiver) {
+      return this.get$length(receiver) === 0;
+    },
+    get$isNotEmpty(receiver) {
+      return !this.get$isEmpty(receiver);
+    },
+    get$first(receiver) {
+      if (this.get$length(receiver) === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      return this.$index(receiver, 0);
+    },
+    get$last(receiver) {
+      if (this.get$length(receiver) === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      return this.$index(receiver, this.get$length(receiver) - 1);
+    },
+    get$single(receiver) {
+      if (this.get$length(receiver) === 0)
+        throw A.wrapException(A.IterableElementError_noElement());
+      if (this.get$length(receiver) > 1)
+        throw A.wrapException(A.IterableElementError_tooMany());
+      return this.$index(receiver, 0);
+    },
+    contains$1(receiver, element) {
+      var i,
+        $length = this.get$length(receiver);
+      for (i = 0; i < $length; ++i) {
+        if (J.$eq$(this.$index(receiver, i), element))
+          return true;
+        if ($length !== this.get$length(receiver))
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      return false;
+    },
+    every$1(receiver, test) {
+      var i,
+        $length = this.get$length(receiver);
+      for (i = 0; i < $length; ++i) {
+        if (!test.call$1(this.$index(receiver, i)))
+          return false;
+        if ($length !== this.get$length(receiver))
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      return true;
+    },
+    any$1(receiver, test) {
+      var i,
+        $length = this.get$length(receiver);
+      for (i = 0; i < $length; ++i) {
+        if (test.call$1(this.$index(receiver, i)))
+          return true;
+        if ($length !== this.get$length(receiver))
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      return false;
+    },
+    lastWhere$2$orElse(receiver, test, orElse) {
+      var i, element,
+        $length = this.get$length(receiver);
+      for (i = $length - 1; i >= 0; --i) {
+        element = this.$index(receiver, i);
+        if (test.call$1(element))
+          return element;
+        if ($length !== this.get$length(receiver))
+          throw A.wrapException(A.ConcurrentModificationError$(receiver));
+      }
+      if (orElse != null)
+        return orElse.call$0();
+      throw A.wrapException(A.IterableElementError_noElement());
+    },
+    join$1(receiver, separator) {
+      var t1;
+      if (this.get$length(receiver) === 0)
+        return "";
+      t1 = A.StringBuffer__writeAll("", receiver, separator);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    where$1(receiver, test) {
+      return new A.WhereIterable(receiver, test, A.instanceType(receiver)._eval$1("WhereIterable<ListBase.E>"));
+    },
+    map$1$1(receiver, f, $T) {
+      return new A.MappedListIterable(receiver, f, A.instanceType(receiver)._eval$1("@<ListBase.E>")._bind$1($T)._eval$1("MappedListIterable<1,2>"));
+    },
+    expand$1$1(receiver, f, $T) {
+      return new A.ExpandIterable(receiver, f, A.instanceType(receiver)._eval$1("@<ListBase.E>")._bind$1($T)._eval$1("ExpandIterable<1,2>"));
+    },
+    skip$1(receiver, count) {
+      return A.SubListIterable$(receiver, count, null, A.instanceType(receiver)._eval$1("ListBase.E"));
+    },
+    take$1(receiver, count) {
+      return A.SubListIterable$(receiver, 0, A.checkNotNullable(count, "count", type$.int), A.instanceType(receiver)._eval$1("ListBase.E"));
+    },
+    toList$1$growable(receiver, growable) {
+      var t1, first, result, i, _this = this;
+      if (_this.get$isEmpty(receiver)) {
+        t1 = J.JSArray_JSArray$growable(0, A.instanceType(receiver)._eval$1("ListBase.E"));
+        return t1;
+      }
+      first = _this.$index(receiver, 0);
+      result = A.List_List$filled(_this.get$length(receiver), first, true, A.instanceType(receiver)._eval$1("ListBase.E"));
+      for (i = 1; i < _this.get$length(receiver); ++i)
+        result[i] = _this.$index(receiver, i);
+      return result;
+    },
+    toList$0(receiver) {
+      return this.toList$1$growable(receiver, true);
+    },
+    toSet$0(receiver) {
+      var i,
+        result = A.LinkedHashSet_LinkedHashSet(A.instanceType(receiver)._eval$1("ListBase.E"));
+      for (i = 0; i < this.get$length(receiver); ++i)
+        result.add$1(0, this.$index(receiver, i));
+      return result;
+    },
+    add$1(receiver, element) {
+      var t1 = this.get$length(receiver);
+      this.set$length(receiver, t1 + 1);
+      this.$indexSet(receiver, t1, element);
+    },
+    addAll$1(receiver, iterable) {
+      var t1,
+        i = this.get$length(receiver);
+      for (t1 = iterable.get$iterator(iterable); t1.moveNext$0();) {
+        this.add$1(receiver, t1.get$current(t1));
+        ++i;
+      }
+    },
+    _closeGap$2(receiver, start, end) {
+      var i, _this = this,
+        $length = _this.get$length(receiver),
+        size = end - start;
+      for (i = end; i < $length; ++i)
+        _this.$indexSet(receiver, i - size, _this.$index(receiver, i));
+      _this.set$length(receiver, $length - size);
+    },
+    cast$1$0(receiver, $R) {
+      return new A.CastList(receiver, A.instanceType(receiver)._eval$1("@<ListBase.E>")._bind$1($R)._eval$1("CastList<1,2>"));
+    },
+    sort$1(receiver, compare) {
+      var t1 = compare == null ? A.collection_ListBase__compareAny$closure() : compare;
+      A.Sort__doSort(receiver, 0, this.get$length(receiver) - 1, t1);
+    },
+    sublist$2(receiver, start, end) {
+      var listLength = this.get$length(receiver);
+      A.RangeError_checkValidRange(start, listLength, listLength);
+      return A.List_List$from(this.getRange$2(receiver, start, listLength), true, A.instanceType(receiver)._eval$1("ListBase.E"));
+    },
+    sublist$1(receiver, start) {
+      return this.sublist$2(receiver, start, null);
+    },
+    getRange$2(receiver, start, end) {
+      A.RangeError_checkValidRange(start, end, this.get$length(receiver));
+      return A.SubListIterable$(receiver, start, end, A.instanceType(receiver)._eval$1("ListBase.E"));
+    },
+    removeRange$2(receiver, start, end) {
+      A.RangeError_checkValidRange(start, end, this.get$length(receiver));
+      if (end > start)
+        this._closeGap$2(receiver, start, end);
+    },
+    fillRange$3(receiver, start, end, fill) {
+      var i,
+        value = fill == null ? A.instanceType(receiver)._eval$1("ListBase.E")._as(fill) : fill;
+      A.RangeError_checkValidRange(start, end, this.get$length(receiver));
+      for (i = start; i < end; ++i)
+        this.$indexSet(receiver, i, value);
+    },
+    setRange$4(receiver, start, end, iterable, skipCount) {
+      var $length, otherStart, otherList, t1, i;
+      A.RangeError_checkValidRange(start, end, this.get$length(receiver));
+      $length = end - start;
+      if ($length === 0)
+        return;
+      A.RangeError_checkNotNegative(skipCount, "skipCount");
+      if (A.instanceType(receiver)._eval$1("List<ListBase.E>")._is(iterable)) {
+        otherStart = skipCount;
+        otherList = iterable;
+      } else {
+        otherList = J.skip$1$ax(iterable, skipCount).toList$1$growable(0, false);
+        otherStart = 0;
+      }
+      t1 = J.getInterceptor$asx(otherList);
+      if (otherStart + $length > t1.get$length(otherList))
+        throw A.wrapException(A.IterableElementError_tooFew());
+      if (otherStart < start)
+        for (i = $length - 1; i >= 0; --i)
+          this.$indexSet(receiver, start + i, t1.$index(otherList, otherStart + i));
+      else
+        for (i = 0; i < $length; ++i)
+          this.$indexSet(receiver, start + i, t1.$index(otherList, otherStart + i));
+    },
+    get$reversed(receiver) {
+      return new A.ReversedListIterable(receiver, A.instanceType(receiver)._eval$1("ReversedListIterable<ListBase.E>"));
+    },
+    toString$0(receiver) {
+      return A.Iterable_iterableToFullString(receiver, "[", "]");
+    },
+    $isEfficientLengthIterable: 1,
+    $isIterable: 1,
+    $isList: 1
+  };
+  A.MapBase.prototype = {
+    cast$2$0(_, RK, RV) {
+      var t1 = A._instanceType(this);
+      return A.Map_castFrom(this, t1._eval$1("MapBase.K"), t1._eval$1("MapBase.V"), RK, RV);
+    },
+    forEach$1(_, action) {
+      var t1, t2, key, t3, _this = this;
+      for (t1 = J.get$iterator$ax(_this.get$keys(_this)), t2 = A._instanceType(_this)._eval$1("MapBase.V"); t1.moveNext$0();) {
+        key = t1.get$current(t1);
+        t3 = _this.$index(0, key);
+        action.call$2(key, t3 == null ? t2._as(t3) : t3);
+      }
+    },
+    addAll$1(_, other) {
+      other.forEach$1(0, new A.MapBase_addAll_closure(this));
+    },
+    get$entries(_) {
+      var _this = this;
+      return J.map$1$1$ax(_this.get$keys(_this), new A.MapBase_entries_closure(_this), A._instanceType(_this)._eval$1("MapEntry<MapBase.K,MapBase.V>"));
+    },
+    removeWhere$1(_, test) {
+      var t2, key, t3, _i, _this = this,
+        t1 = A._instanceType(_this),
+        keysToRemove = A._setArrayType([], t1._eval$1("JSArray<MapBase.K>"));
+      for (t2 = J.get$iterator$ax(_this.get$keys(_this)), t1 = t1._eval$1("MapBase.V"); t2.moveNext$0();) {
+        key = t2.get$current(t2);
+        t3 = _this.$index(0, key);
+        if (test.call$2(key, t3 == null ? t1._as(t3) : t3))
+          keysToRemove.push(key);
+      }
+      for (t1 = keysToRemove.length, _i = 0; _i < keysToRemove.length; keysToRemove.length === t1 || (0, A.throwConcurrentModificationError)(keysToRemove), ++_i)
+        _this.remove$1(0, keysToRemove[_i]);
+    },
+    containsKey$1(key) {
+      return J.contains$1$asx(this.get$keys(this), key);
+    },
+    get$length(_) {
+      return J.get$length$asx(this.get$keys(this));
+    },
+    get$isEmpty(_) {
+      return J.get$isEmpty$asx(this.get$keys(this));
+    },
+    get$isNotEmpty(_) {
+      return J.get$isNotEmpty$asx(this.get$keys(this));
+    },
+    get$values(_) {
+      var t1 = A._instanceType(this);
+      return new A._MapBaseValueIterable(this, t1._eval$1("@<MapBase.K>")._bind$1(t1._eval$1("MapBase.V"))._eval$1("_MapBaseValueIterable<1,2>"));
+    },
+    toString$0(_) {
+      return A.MapBase_mapToString(this);
+    },
+    $isMap: 1
+  };
+  A.MapBase_addAll_closure.prototype = {
+    call$2(key, value) {
+      this.$this.$indexSet(0, key, value);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("~(MapBase.K,MapBase.V)");
+    }
+  };
+  A.MapBase_entries_closure.prototype = {
+    call$1(key) {
+      var t1 = this.$this,
+        t2 = t1.$index(0, key);
+      if (t2 == null)
+        t2 = A._instanceType(t1)._eval$1("MapBase.V")._as(t2);
+      t1 = A._instanceType(t1);
+      return new A.MapEntry(key, t2, t1._eval$1("@<MapBase.K>")._bind$1(t1._eval$1("MapBase.V"))._eval$1("MapEntry<1,2>"));
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("MapEntry<MapBase.K,MapBase.V>(MapBase.K)");
+    }
+  };
+  A.MapBase_mapToString_closure.prototype = {
+    call$2(k, v) {
+      var t2,
+        t1 = this._box_0;
+      if (!t1.first)
+        this.result._contents += ", ";
+      t1.first = false;
+      t1 = this.result;
+      t2 = A.S(k);
+      t2 = t1._contents += t2;
+      t1._contents = t2 + ": ";
+      t2 = A.S(v);
+      t1._contents += t2;
+    },
+    $signature: 168
+  };
+  A.UnmodifiableMapBase.prototype = {};
+  A._MapBaseValueIterable.prototype = {
+    get$length(_) {
+      var t1 = this._map;
+      return t1.get$length(t1);
+    },
+    get$isEmpty(_) {
+      var t1 = this._map;
+      return t1.get$isEmpty(t1);
+    },
+    get$isNotEmpty(_) {
+      var t1 = this._map;
+      return t1.get$isNotEmpty(t1);
+    },
+    get$first(_) {
+      var t1 = this._map;
+      t1 = t1.$index(0, J.get$first$ax(t1.get$keys(t1)));
+      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
+    },
+    get$single(_) {
+      var t1 = this._map;
+      t1 = t1.$index(0, J.get$single$ax(t1.get$keys(t1)));
+      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
+    },
+    get$last(_) {
+      var t1 = this._map;
+      t1 = t1.$index(0, J.get$last$ax(t1.get$keys(t1)));
+      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
+    },
+    get$iterator(_) {
+      var t1 = this._map,
+        t2 = this.$ti;
+      return new A._MapBaseValueIterator(J.get$iterator$ax(t1.get$keys(t1)), t1, t2._eval$1("@<1>")._bind$1(t2._rest[1])._eval$1("_MapBaseValueIterator<1,2>"));
+    }
+  };
+  A._MapBaseValueIterator.prototype = {
+    moveNext$0() {
+      var _this = this,
+        t1 = _this._collection$_keys;
+      if (t1.moveNext$0()) {
+        _this._collection$_current = _this._map.$index(0, t1.get$current(t1));
+        return true;
+      }
+      _this._collection$_current = null;
+      return false;
+    },
+    get$current(_) {
+      var t1 = this._collection$_current;
+      return t1 == null ? this.$ti._rest[1]._as(t1) : t1;
+    }
+  };
+  A._UnmodifiableMapMixin.prototype = {
+    $indexSet(_, key, value) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify unmodifiable map"));
+    },
+    addAll$1(_, other) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify unmodifiable map"));
+    },
+    remove$1(_, key) {
+      throw A.wrapException(A.UnsupportedError$("Cannot modify unmodifiable map"));
+    }
+  };
+  A.MapView.prototype = {
+    cast$2$0(_, RK, RV) {
+      return this._map.cast$2$0(0, RK, RV);
+    },
+    $index(_, key) {
+      return this._map.$index(0, key);
+    },
+    $indexSet(_, key, value) {
+      this._map.$indexSet(0, key, value);
+    },
+    addAll$1(_, other) {
+      this._map.addAll$1(0, other);
+    },
+    containsKey$1(key) {
+      return this._map.containsKey$1(key);
+    },
+    forEach$1(_, action) {
+      this._map.forEach$1(0, action);
+    },
+    get$isEmpty(_) {
+      var t1 = this._map;
+      return t1.get$isEmpty(t1);
+    },
+    get$isNotEmpty(_) {
+      var t1 = this._map;
+      return t1.get$isNotEmpty(t1);
+    },
+    get$length(_) {
+      var t1 = this._map;
+      return t1.get$length(t1);
+    },
+    get$keys(_) {
+      var t1 = this._map;
+      return t1.get$keys(t1);
+    },
+    remove$1(_, key) {
+      return this._map.remove$1(0, key);
+    },
+    toString$0(_) {
+      return this._map.toString$0(0);
+    },
+    get$values(_) {
+      var t1 = this._map;
+      return t1.get$values(t1);
+    },
+    get$entries(_) {
+      var t1 = this._map;
+      return t1.get$entries(t1);
+    },
+    $isMap: 1
+  };
+  A.UnmodifiableMapView.prototype = {
+    cast$2$0(_, RK, RV) {
+      return new A.UnmodifiableMapView(this._map.cast$2$0(0, RK, RV), RK._eval$1("@<0>")._bind$1(RV)._eval$1("UnmodifiableMapView<1,2>"));
+    }
+  };
+  A.ListQueue.prototype = {
+    get$iterator(_) {
+      var _this = this;
+      return new A._ListQueueIterator(_this, _this._tail, _this._modificationCount, _this._head, _this.$ti._eval$1("_ListQueueIterator<1>"));
+    },
+    get$isEmpty(_) {
+      return this._head === this._tail;
+    },
+    get$length(_) {
+      return (this._tail - this._head & this._table.length - 1) >>> 0;
+    },
+    get$first(_) {
+      var _this = this,
+        t1 = _this._head;
+      if (t1 === _this._tail)
+        throw A.wrapException(A.IterableElementError_noElement());
+      t1 = _this._table[t1];
+      return t1 == null ? _this.$ti._precomputed1._as(t1) : t1;
+    },
+    get$last(_) {
+      var _this = this,
+        t1 = _this._head,
+        t2 = _this._tail;
+      if (t1 === t2)
+        throw A.wrapException(A.IterableElementError_noElement());
+      t1 = _this._table;
+      t1 = t1[(t2 - 1 & t1.length - 1) >>> 0];
+      return t1 == null ? _this.$ti._precomputed1._as(t1) : t1;
+    },
+    get$single(_) {
+      var t1, _this = this;
+      if (_this._head === _this._tail)
+        throw A.wrapException(A.IterableElementError_noElement());
+      if (_this.get$length(0) > 1)
+        throw A.wrapException(A.IterableElementError_tooMany());
+      t1 = _this._table[_this._head];
+      return t1 == null ? _this.$ti._precomputed1._as(t1) : t1;
+    },
+    elementAt$1(_, index) {
+      var t1, _this = this;
+      A.IndexError_check(index, _this.get$length(0), _this, null, null);
+      t1 = _this._table;
+      t1 = t1[(_this._head + index & t1.length - 1) >>> 0];
+      return t1 == null ? _this.$ti._precomputed1._as(t1) : t1;
+    },
+    toList$1$growable(_, growable) {
+      var t1, list, t2, t3, i, t4, _this = this,
+        mask = _this._table.length - 1,
+        $length = (_this._tail - _this._head & mask) >>> 0;
+      if ($length === 0) {
+        t1 = J.JSArray_JSArray$growable(0, _this.$ti._precomputed1);
+        return t1;
+      }
+      t1 = _this.$ti._precomputed1;
+      list = A.List_List$filled($length, _this.get$first(0), true, t1);
+      for (t2 = _this._table, t3 = _this._head, i = 0; i < $length; ++i) {
+        t4 = t2[(t3 + i & mask) >>> 0];
+        list[i] = t4 == null ? t1._as(t4) : t4;
+      }
+      return list;
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    },
+    addAll$1(_, elements) {
+      var addCount, $length, t2, t3, t4, newTable, endSpace, preSpace, _i, _this = this,
+        t1 = _this.$ti;
+      if (t1._eval$1("List<1>")._is(elements)) {
+        addCount = elements.length;
+        $length = _this.get$length(0);
+        t2 = $length + addCount;
+        t3 = _this._table;
+        t4 = t3.length;
+        if (t2 >= t4) {
+          newTable = A.List_List$filled(A.ListQueue__nextPowerOf2(t2 + (t2 >>> 1)), null, false, t1._eval$1("1?"));
+          _this._tail = _this._collection$_writeToList$1(newTable);
+          _this._table = newTable;
+          _this._head = 0;
+          B.JSArray_methods.setRange$4(newTable, $length, t2, elements, 0);
+          _this._tail += addCount;
+        } else {
+          t1 = _this._tail;
+          endSpace = t4 - t1;
+          if (addCount < endSpace) {
+            B.JSArray_methods.setRange$4(t3, t1, t1 + addCount, elements, 0);
+            _this._tail += addCount;
+          } else {
+            preSpace = addCount - endSpace;
+            B.JSArray_methods.setRange$4(t3, t1, t1 + endSpace, elements, 0);
+            B.JSArray_methods.setRange$4(_this._table, 0, preSpace, elements, endSpace);
+            _this._tail = preSpace;
+          }
+        }
+        ++_this._modificationCount;
+      } else
+        for (t1 = elements.length, _i = 0; _i < elements.length; elements.length === t1 || (0, A.throwConcurrentModificationError)(elements), ++_i)
+          _this._add$1(elements[_i]);
+    },
+    clear$0(_) {
+      var t2, t3, _this = this,
+        i = _this._head,
+        t1 = _this._tail;
+      if (i !== t1) {
+        for (t2 = _this._table, t3 = t2.length - 1; i !== t1; i = (i + 1 & t3) >>> 0)
+          t2[i] = null;
+        _this._head = _this._tail = 0;
+        ++_this._modificationCount;
+      }
+    },
+    toString$0(_) {
+      return A.Iterable_iterableToFullString(this, "{", "}");
+    },
+    addFirst$1(value) {
+      var _this = this,
+        t1 = _this._head,
+        t2 = _this._table;
+      t1 = _this._head = (t1 - 1 & t2.length - 1) >>> 0;
+      t2[t1] = value;
+      if (t1 === _this._tail)
+        _this._grow$0();
+      ++_this._modificationCount;
+    },
+    removeFirst$0() {
+      var t2, result, _this = this,
+        t1 = _this._head;
+      if (t1 === _this._tail)
+        throw A.wrapException(A.IterableElementError_noElement());
+      ++_this._modificationCount;
+      t2 = _this._table;
+      result = t2[t1];
+      if (result == null)
+        result = _this.$ti._precomputed1._as(result);
+      t2[t1] = null;
+      _this._head = (t1 + 1 & t2.length - 1) >>> 0;
+      return result;
+    },
+    _add$1(element) {
+      var _this = this,
+        t1 = _this._table,
+        t2 = _this._tail;
+      t1[t2] = element;
+      t1 = (t2 + 1 & t1.length - 1) >>> 0;
+      _this._tail = t1;
+      if (_this._head === t1)
+        _this._grow$0();
+      ++_this._modificationCount;
+    },
+    _grow$0() {
+      var _this = this,
+        newTable = A.List_List$filled(_this._table.length * 2, null, false, _this.$ti._eval$1("1?")),
+        t1 = _this._table,
+        t2 = _this._head,
+        split = t1.length - t2;
+      B.JSArray_methods.setRange$4(newTable, 0, split, t1, t2);
+      B.JSArray_methods.setRange$4(newTable, split, split + _this._head, _this._table, 0);
+      _this._head = 0;
+      _this._tail = _this._table.length;
+      _this._table = newTable;
+    },
+    _collection$_writeToList$1(target) {
+      var $length, firstPartSize, _this = this,
+        t1 = _this._head,
+        t2 = _this._tail,
+        t3 = _this._table;
+      if (t1 <= t2) {
+        $length = t2 - t1;
+        B.JSArray_methods.setRange$4(target, 0, $length, t3, t1);
+        return $length;
+      } else {
+        firstPartSize = t3.length - t1;
+        B.JSArray_methods.setRange$4(target, 0, firstPartSize, t3, t1);
+        B.JSArray_methods.setRange$4(target, firstPartSize, firstPartSize + _this._tail, _this._table, 0);
+        return _this._tail + firstPartSize;
+      }
+    },
+    $isQueue: 1
+  };
+  A._ListQueueIterator.prototype = {
+    get$current(_) {
+      var t1 = this._collection$_current;
+      return t1 == null ? this.$ti._precomputed1._as(t1) : t1;
+    },
+    moveNext$0() {
+      var t2, _this = this,
+        t1 = _this._queue;
+      if (_this._modificationCount !== t1._modificationCount)
+        A.throwExpression(A.ConcurrentModificationError$(t1));
+      t2 = _this._collection$_position;
+      if (t2 === _this._collection$_end) {
+        _this._collection$_current = null;
+        return false;
+      }
+      t1 = t1._table;
+      _this._collection$_current = t1[t2];
+      _this._collection$_position = (t2 + 1 & t1.length - 1) >>> 0;
+      return true;
+    }
+  };
+  A.SetBase.prototype = {
+    get$isEmpty(_) {
+      return this.get$length(this) === 0;
+    },
+    get$isNotEmpty(_) {
+      return this.get$length(this) !== 0;
+    },
+    addAll$1(_, elements) {
+      var t1;
+      for (t1 = J.get$iterator$ax(elements); t1.moveNext$0();)
+        this.add$1(0, t1.get$current(t1));
+    },
+    removeAll$1(elements) {
+      var t1;
+      for (t1 = J.get$iterator$ax(elements); t1.moveNext$0();)
+        this.remove$1(0, t1.get$current(t1));
+    },
+    difference$1(other) {
+      var t1, t2, element,
+        result = this.toSet$0(0);
+      for (t1 = this.get$iterator(this), t2 = other._source; t1.moveNext$0();) {
+        element = t1.get$current(t1);
+        if (t2.contains$1(0, element))
+          result.remove$1(0, element);
+      }
+      return result;
+    },
+    toList$1$growable(_, growable) {
+      return A.List_List$of(this, true, A._instanceType(this)._precomputed1);
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    },
+    map$1$1(_, f, $T) {
+      return new A.EfficientLengthMappedIterable(this, f, A._instanceType(this)._eval$1("@<1>")._bind$1($T)._eval$1("EfficientLengthMappedIterable<1,2>"));
+    },
+    get$single(_) {
+      var it, _this = this;
+      if (_this.get$length(_this) > 1)
+        throw A.wrapException(A.IterableElementError_tooMany());
+      it = _this.get$iterator(_this);
+      if (!it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_noElement());
+      return it.get$current(it);
+    },
+    toString$0(_) {
+      return A.Iterable_iterableToFullString(this, "{", "}");
+    },
+    where$1(_, f) {
+      return new A.WhereIterable(this, f, A._instanceType(this)._eval$1("WhereIterable<1>"));
+    },
+    forEach$1(_, f) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        f.call$1(t1.get$current(t1));
+    },
+    every$1(_, f) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        if (!f.call$1(t1.get$current(t1)))
+          return false;
+      return true;
+    },
+    any$1(_, test) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        if (test.call$1(t1.get$current(t1)))
+          return true;
+      return false;
+    },
+    take$1(_, n) {
+      return A.TakeIterable_TakeIterable(this, n, A._instanceType(this)._precomputed1);
+    },
+    skip$1(_, n) {
+      return A.SkipIterable_SkipIterable(this, n, A._instanceType(this)._precomputed1);
+    },
+    get$first(_) {
+      var it = this.get$iterator(this);
+      if (!it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_noElement());
+      return it.get$current(it);
+    },
+    get$last(_) {
+      var result,
+        it = this.get$iterator(this);
+      if (!it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_noElement());
+      do
+        result = it.get$current(it);
+      while (it.moveNext$0());
+      return result;
+    },
+    elementAt$1(_, index) {
+      var iterator, skipCount;
+      A.RangeError_checkNotNegative(index, "index");
+      iterator = this.get$iterator(this);
+      for (skipCount = index; iterator.moveNext$0();) {
+        if (skipCount === 0)
+          return iterator.get$current(iterator);
+        --skipCount;
+      }
+      throw A.wrapException(A.IndexError$withLength(index, index - skipCount, this, null, "index"));
+    },
+    $isEfficientLengthIterable: 1,
+    $isIterable: 1,
+    $isSet: 1
+  };
+  A._SetBase.prototype = {
+    difference$1(other) {
+      var t1, t2, t3, element, _this = this,
+        result = _this._newSet$0();
+      for (t1 = A._LinkedHashSetIterator$(_this, _this._modifications, A._instanceType(_this)._precomputed1), t2 = other._source, t3 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        element = t1._collection$_current;
+        if (element == null)
+          element = t3._as(element);
+        if (!t2.contains$1(0, element))
+          result.add$1(0, element);
+      }
+      return result;
+    },
+    intersection$1(other) {
+      var t1, t2, t3, element, _this = this,
+        result = _this._newSet$0();
+      for (t1 = A._LinkedHashSetIterator$(_this, _this._modifications, A._instanceType(_this)._precomputed1), t2 = other._baseMap, t3 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        element = t1._collection$_current;
+        if (element == null)
+          element = t3._as(element);
+        if (t2.containsKey$1(element))
+          result.add$1(0, element);
+      }
+      return result;
+    },
+    toSet$0(_) {
+      var t1 = this._newSet$0();
+      t1.addAll$1(0, this);
+      return t1;
+    }
+  };
+  A._UnmodifiableSetMixin.prototype = {
+    add$1(_, value) {
+      return A._UnmodifiableSetMixin__throwUnmodifiable();
+    },
+    addAll$1(_, elements) {
+      return A._UnmodifiableSetMixin__throwUnmodifiable();
+    },
+    remove$1(_, value) {
+      return A._UnmodifiableSetMixin__throwUnmodifiable();
+    }
+  };
+  A.UnmodifiableSetView.prototype = {
+    contains$1(_, element) {
+      return this._collection$_source.contains$1(0, element);
+    },
+    get$length(_) {
+      return this._collection$_source._collection$_length;
+    },
+    get$iterator(_) {
+      var t1 = this._collection$_source;
+      return A._LinkedHashSetIterator$(t1, t1._modifications, A._instanceType(t1)._precomputed1);
+    },
+    toSet$0(_) {
+      return this._collection$_source.toSet$0(0);
+    }
+  };
+  A._UnmodifiableMapView_MapView__UnmodifiableMapMixin.prototype = {};
+  A._UnmodifiableSetView_SetBase__UnmodifiableSetMixin.prototype = {};
+  A._JsonMap.prototype = {
+    $index(_, key) {
+      var result,
+        t1 = this._processed;
+      if (t1 == null)
+        return this._data.$index(0, key);
+      else if (typeof key != "string")
+        return null;
+      else {
+        result = t1[key];
+        return typeof result == "undefined" ? this._process$1(key) : result;
+      }
+    },
+    get$length(_) {
+      return this._processed == null ? this._data.__js_helper$_length : this._convert$_computeKeys$0().length;
+    },
+    get$isEmpty(_) {
+      return this.get$length(0) === 0;
+    },
+    get$isNotEmpty(_) {
+      return this.get$length(0) > 0;
+    },
+    get$keys(_) {
+      var t1;
+      if (this._processed == null) {
+        t1 = this._data;
+        return new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>"));
+      }
+      return new A._JsonMapKeyIterable(this);
+    },
+    get$values(_) {
+      var _this = this;
+      if (_this._processed == null)
+        return _this._data.get$values(0);
+      return A.MappedIterable_MappedIterable(_this._convert$_computeKeys$0(), new A._JsonMap_values_closure(_this), type$.String, type$.dynamic);
+    },
+    $indexSet(_, key, value) {
+      var processed, original, _this = this;
+      if (_this._processed == null)
+        _this._data.$indexSet(0, key, value);
+      else if (_this.containsKey$1(key)) {
+        processed = _this._processed;
+        processed[key] = value;
+        original = _this._original;
+        if (original == null ? processed != null : original !== processed)
+          original[key] = null;
+      } else
+        _this._upgrade$0().$indexSet(0, key, value);
+    },
+    addAll$1(_, other) {
+      other.forEach$1(0, new A._JsonMap_addAll_closure(this));
+    },
+    containsKey$1(key) {
+      if (this._processed == null)
+        return this._data.containsKey$1(key);
+      if (typeof key != "string")
+        return false;
+      return Object.prototype.hasOwnProperty.call(this._original, key);
+    },
+    remove$1(_, key) {
+      if (this._processed != null && !this.containsKey$1(key))
+        return null;
+      return this._upgrade$0().remove$1(0, key);
+    },
+    forEach$1(_, f) {
+      var keys, i, key, value, _this = this;
+      if (_this._processed == null)
+        return _this._data.forEach$1(0, f);
+      keys = _this._convert$_computeKeys$0();
+      for (i = 0; i < keys.length; ++i) {
+        key = keys[i];
+        value = _this._processed[key];
+        if (typeof value == "undefined") {
+          value = A._convertJsonToDartLazy(_this._original[key]);
+          _this._processed[key] = value;
+        }
+        f.call$2(key, value);
+        if (keys !== _this._data)
+          throw A.wrapException(A.ConcurrentModificationError$(_this));
+      }
+    },
+    _convert$_computeKeys$0() {
+      var keys = this._data;
+      if (keys == null)
+        keys = this._data = A._setArrayType(Object.keys(this._original), type$.JSArray_String);
+      return keys;
+    },
+    _upgrade$0() {
+      var result, keys, i, t1, key, _this = this;
+      if (_this._processed == null)
+        return _this._data;
+      result = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.dynamic);
+      keys = _this._convert$_computeKeys$0();
+      for (i = 0; t1 = keys.length, i < t1; ++i) {
+        key = keys[i];
+        result.$indexSet(0, key, _this.$index(0, key));
+      }
+      if (t1 === 0)
+        keys.push("");
+      else
+        B.JSArray_methods.clear$0(keys);
+      _this._original = _this._processed = null;
+      return _this._data = result;
+    },
+    _process$1(key) {
+      var result;
+      if (!Object.prototype.hasOwnProperty.call(this._original, key))
+        return null;
+      result = A._convertJsonToDartLazy(this._original[key]);
+      return this._processed[key] = result;
+    }
+  };
+  A._JsonMap_values_closure.prototype = {
+    call$1(each) {
+      return this.$this.$index(0, each);
+    },
+    $signature: 170
+  };
+  A._JsonMap_addAll_closure.prototype = {
+    call$2(key, value) {
+      this.$this.$indexSet(0, key, value);
+    },
+    $signature: 113
+  };
+  A._JsonMapKeyIterable.prototype = {
+    get$length(_) {
+      return this._convert$_parent.get$length(0);
+    },
+    elementAt$1(_, index) {
+      var t1 = this._convert$_parent;
+      return t1._processed == null ? t1.get$keys(0).elementAt$1(0, index) : t1._convert$_computeKeys$0()[index];
+    },
+    get$iterator(_) {
+      var t1 = this._convert$_parent;
+      if (t1._processed == null) {
+        t1 = t1.get$keys(0);
+        t1 = t1.get$iterator(t1);
+      } else {
+        t1 = t1._convert$_computeKeys$0();
+        t1 = new J.ArrayIterator(t1, t1.length, A._arrayInstanceType(t1)._eval$1("ArrayIterator<1>"));
+      }
+      return t1;
+    },
+    contains$1(_, key) {
+      return this._convert$_parent.containsKey$1(key);
+    }
+  };
+  A._Utf8Decoder__decoder_closure.prototype = {
+    call$0() {
+      var t1, exception;
+      try {
+        t1 = new TextDecoder("utf-8", {fatal: true});
+        return t1;
+      } catch (exception) {
+      }
+      return null;
+    },
+    $signature: 62
+  };
+  A._Utf8Decoder__decoderNonfatal_closure.prototype = {
+    call$0() {
+      var t1, exception;
+      try {
+        t1 = new TextDecoder("utf-8", {fatal: false});
+        return t1;
+      } catch (exception) {
+      }
+      return null;
+    },
+    $signature: 62
+  };
+  A.AsciiCodec.prototype = {
+    encode$1(source) {
+      return B.AsciiEncoder_127.convert$1(source);
+    }
+  };
+  A._UnicodeSubsetEncoder.prototype = {
+    convert$1(string) {
+      var t1, i, codeUnit,
+        $length = A.RangeError_checkValidRange(0, null, string.length) - 0,
+        result = new Uint8Array($length);
+      for (t1 = ~this._subsetMask, i = 0; i < $length; ++i) {
+        codeUnit = string.charCodeAt(i);
+        if ((codeUnit & t1) !== 0)
+          throw A.wrapException(A.ArgumentError$value(string, "string", "Contains invalid characters."));
+        result[i] = codeUnit;
+      }
+      return result;
+    }
+  };
+  A.AsciiEncoder.prototype = {};
+  A.Base64Codec.prototype = {
+    normalize$3(source, start, end) {
+      var inverseAlphabet, i, sliceStart, buffer, firstPadding, firstPaddingSourceIndex, paddingCount, i0, char, i1, digit1, digit2, char0, value, t1, t2, endLength, $length,
+        _s31_ = "Invalid base64 encoding length ";
+      end = A.RangeError_checkValidRange(start, end, source.length);
+      inverseAlphabet = $.$get$_Base64Decoder__inverseAlphabet();
+      for (i = start, sliceStart = i, buffer = null, firstPadding = -1, firstPaddingSourceIndex = -1, paddingCount = 0; i < end; i = i0) {
+        i0 = i + 1;
+        char = source.charCodeAt(i);
+        if (char === 37) {
+          i1 = i0 + 2;
+          if (i1 <= end) {
+            digit1 = A.hexDigitValue(source.charCodeAt(i0));
+            digit2 = A.hexDigitValue(source.charCodeAt(i0 + 1));
+            char0 = digit1 * 16 + digit2 - (digit2 & 256);
+            if (char0 === 37)
+              char0 = -1;
+            i0 = i1;
+          } else
+            char0 = -1;
+        } else
+          char0 = char;
+        if (0 <= char0 && char0 <= 127) {
+          value = inverseAlphabet[char0];
+          if (value >= 0) {
+            char0 = string$.ABCDEF.charCodeAt(value);
+            if (char0 === char)
+              continue;
+            char = char0;
+          } else {
+            if (value === -1) {
+              if (firstPadding < 0) {
+                t1 = buffer == null ? null : buffer._contents.length;
+                if (t1 == null)
+                  t1 = 0;
+                firstPadding = t1 + (i - sliceStart);
+                firstPaddingSourceIndex = i;
+              }
+              ++paddingCount;
+              if (char === 61)
+                continue;
+            }
+            char = char0;
+          }
+          if (value !== -2) {
+            if (buffer == null) {
+              buffer = new A.StringBuffer("");
+              t1 = buffer;
+            } else
+              t1 = buffer;
+            t1._contents += B.JSString_methods.substring$2(source, sliceStart, i);
+            t2 = A.Primitives_stringFromCharCode(char);
+            t1._contents += t2;
+            sliceStart = i0;
+            continue;
+          }
+        }
+        throw A.wrapException(A.FormatException$("Invalid base64 data", source, i));
+      }
+      if (buffer != null) {
+        t1 = B.JSString_methods.substring$2(source, sliceStart, end);
+        t1 = buffer._contents += t1;
+        t2 = t1.length;
+        if (firstPadding >= 0)
+          A.Base64Codec__checkPadding(source, firstPaddingSourceIndex, end, firstPadding, paddingCount, t2);
+        else {
+          endLength = B.JSInt_methods.$mod(t2 - 1, 4) + 1;
+          if (endLength === 1)
+            throw A.wrapException(A.FormatException$(_s31_, source, end));
+          for (; endLength < 4;) {
+            t1 += "=";
+            buffer._contents = t1;
+            ++endLength;
+          }
+        }
+        t1 = buffer._contents;
+        return B.JSString_methods.replaceRange$3(source, start, end, t1.charCodeAt(0) == 0 ? t1 : t1);
+      }
+      $length = end - start;
+      if (firstPadding >= 0)
+        A.Base64Codec__checkPadding(source, firstPaddingSourceIndex, end, firstPadding, paddingCount, $length);
+      else {
+        endLength = B.JSInt_methods.$mod($length, 4);
+        if (endLength === 1)
+          throw A.wrapException(A.FormatException$(_s31_, source, end));
+        if (endLength > 1)
+          source = B.JSString_methods.replaceRange$3(source, end, end, endLength === 2 ? "==" : "=");
+      }
+      return source;
+    }
+  };
+  A.Base64Encoder.prototype = {
+    startChunkedConversion$1(sink) {
+      return new A._Utf8Base64EncoderSink(new A._Utf8StringSinkAdapter(new A._Utf8Decoder(false), sink, sink._stringSink), new A._Base64Encoder(string$.ABCDEF));
+    }
+  };
+  A._Base64Encoder.prototype = {
+    createBuffer$1(bufferLength) {
+      return new Uint8Array(bufferLength);
+    },
+    encode$4(bytes, start, end, isLast) {
+      var output, _this = this,
+        byteCount = (_this._convert$_state & 3) + (end - start),
+        fullChunks = B.JSInt_methods._tdivFast$1(byteCount, 3),
+        bufferLength = fullChunks * 4;
+      if (isLast && byteCount - fullChunks * 3 > 0)
+        bufferLength += 4;
+      output = _this.createBuffer$1(bufferLength);
+      _this._convert$_state = A._Base64Encoder_encodeChunk(_this._alphabet, bytes, start, end, isLast, output, 0, _this._convert$_state);
+      if (bufferLength > 0)
+        return output;
+      return null;
+    }
+  };
+  A._Base64EncoderSink.prototype = {};
+  A._Utf8Base64EncoderSink.prototype = {
+    _convert$_add$4(source, start, end, isLast) {
+      var buffer = this._encoder.encode$4(source, start, end, isLast);
+      if (buffer != null)
+        this._sink.addSlice$4(buffer, 0, buffer.length, isLast);
+    }
+  };
+  A.ByteConversionSink.prototype = {};
+  A.Codec.prototype = {};
+  A.Converter.prototype = {};
+  A.Encoding.prototype = {};
+  A.JsonUnsupportedObjectError.prototype = {
+    toString$0(_) {
+      var safeString = A.Error_safeToString(this.unsupportedObject);
+      return (this.cause != null ? "Converting object to an encodable object failed:" : "Converting object did not return an encodable object:") + " " + safeString;
+    }
+  };
+  A.JsonCyclicError.prototype = {
+    toString$0(_) {
+      return "Cyclic error in JSON stringify";
+    }
+  };
+  A.JsonCodec.prototype = {
+    decode$1(source) {
+      var t1 = A._parseJson(source, this.get$decoder()._reviver);
+      return t1;
+    },
+    encode$2$toEncodable(value, toEncodable) {
+      var t1 = A._JsonStringStringifier_stringify(value, this.get$encoder()._toEncodable, null);
+      return t1;
+    },
+    get$encoder() {
+      return B.JsonEncoder_null;
+    },
+    get$decoder() {
+      return B.JsonDecoder_null;
+    }
+  };
+  A.JsonEncoder.prototype = {};
+  A.JsonDecoder.prototype = {};
+  A._JsonStringifier.prototype = {
+    writeStringContent$1(s) {
+      var offset, i, charCode, t1, t2, _this = this,
+        $length = s.length;
+      for (offset = 0, i = 0; i < $length; ++i) {
+        charCode = s.charCodeAt(i);
+        if (charCode > 92) {
+          if (charCode >= 55296) {
+            t1 = charCode & 64512;
+            if (t1 === 55296) {
+              t2 = i + 1;
+              t2 = !(t2 < $length && (s.charCodeAt(t2) & 64512) === 56320);
+            } else
+              t2 = false;
+            if (!t2)
+              if (t1 === 56320) {
+                t1 = i - 1;
+                t1 = !(t1 >= 0 && (s.charCodeAt(t1) & 64512) === 55296);
+              } else
+                t1 = false;
+            else
+              t1 = true;
+            if (t1) {
+              if (i > offset)
+                _this.writeStringSlice$3(s, offset, i);
+              offset = i + 1;
+              _this.writeCharCode$1(92);
+              _this.writeCharCode$1(117);
+              _this.writeCharCode$1(100);
+              t1 = charCode >>> 8 & 15;
+              _this.writeCharCode$1(t1 < 10 ? 48 + t1 : 87 + t1);
+              t1 = charCode >>> 4 & 15;
+              _this.writeCharCode$1(t1 < 10 ? 48 + t1 : 87 + t1);
+              t1 = charCode & 15;
+              _this.writeCharCode$1(t1 < 10 ? 48 + t1 : 87 + t1);
+            }
+          }
+          continue;
+        }
+        if (charCode < 32) {
+          if (i > offset)
+            _this.writeStringSlice$3(s, offset, i);
+          offset = i + 1;
+          _this.writeCharCode$1(92);
+          switch (charCode) {
+            case 8:
+              _this.writeCharCode$1(98);
+              break;
+            case 9:
+              _this.writeCharCode$1(116);
+              break;
+            case 10:
+              _this.writeCharCode$1(110);
+              break;
+            case 12:
+              _this.writeCharCode$1(102);
+              break;
+            case 13:
+              _this.writeCharCode$1(114);
+              break;
+            default:
+              _this.writeCharCode$1(117);
+              _this.writeCharCode$1(48);
+              _this.writeCharCode$1(48);
+              t1 = charCode >>> 4 & 15;
+              _this.writeCharCode$1(t1 < 10 ? 48 + t1 : 87 + t1);
+              t1 = charCode & 15;
+              _this.writeCharCode$1(t1 < 10 ? 48 + t1 : 87 + t1);
+              break;
+          }
+        } else if (charCode === 34 || charCode === 92) {
+          if (i > offset)
+            _this.writeStringSlice$3(s, offset, i);
+          offset = i + 1;
+          _this.writeCharCode$1(92);
+          _this.writeCharCode$1(charCode);
+        }
+      }
+      if (offset === 0)
+        _this.writeString$1(s);
+      else if (offset < $length)
+        _this.writeStringSlice$3(s, offset, $length);
+    },
+    _checkCycle$1(object) {
+      var t1, t2, i, t3;
+      for (t1 = this._seen, t2 = t1.length, i = 0; i < t2; ++i) {
+        t3 = t1[i];
+        if (object == null ? t3 == null : object === t3)
+          throw A.wrapException(new A.JsonCyclicError(object, null));
+      }
+      t1.push(object);
+    },
+    writeObject$1(object) {
+      var customJson, e, t1, exception, _this = this;
+      if (_this.writeJsonValue$1(object))
+        return;
+      _this._checkCycle$1(object);
+      try {
+        customJson = _this._toEncodable.call$1(object);
+        if (!_this.writeJsonValue$1(customJson)) {
+          t1 = A.JsonUnsupportedObjectError$(object, null, _this.get$_partialResult());
+          throw A.wrapException(t1);
+        }
+        _this._seen.pop();
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        t1 = A.JsonUnsupportedObjectError$(object, e, _this.get$_partialResult());
+        throw A.wrapException(t1);
+      }
+    },
+    writeJsonValue$1(object) {
+      var success, _this = this;
+      if (typeof object == "number") {
+        if (!isFinite(object))
+          return false;
+        _this.writeNumber$1(object);
+        return true;
+      } else if (object === true) {
+        _this.writeString$1("true");
+        return true;
+      } else if (object === false) {
+        _this.writeString$1("false");
+        return true;
+      } else if (object == null) {
+        _this.writeString$1("null");
+        return true;
+      } else if (typeof object == "string") {
+        _this.writeString$1('"');
+        _this.writeStringContent$1(object);
+        _this.writeString$1('"');
+        return true;
+      } else if (type$.List_dynamic._is(object)) {
+        _this._checkCycle$1(object);
+        _this.writeList$1(object);
+        _this._seen.pop();
+        return true;
+      } else if (type$.Map_dynamic_dynamic._is(object)) {
+        _this._checkCycle$1(object);
+        success = _this.writeMap$1(object);
+        _this._seen.pop();
+        return success;
+      } else
+        return false;
+    },
+    writeList$1(list) {
+      var t1, i, _this = this;
+      _this.writeString$1("[");
+      t1 = J.getInterceptor$asx(list);
+      if (t1.get$isNotEmpty(list)) {
+        _this.writeObject$1(t1.$index(list, 0));
+        for (i = 1; i < t1.get$length(list); ++i) {
+          _this.writeString$1(",");
+          _this.writeObject$1(t1.$index(list, i));
+        }
+      }
+      _this.writeString$1("]");
+    },
+    writeMap$1(map) {
+      var t1, keyValueList, i, separator, _this = this, _box_0 = {};
+      if (map.get$isEmpty(map)) {
+        _this.writeString$1("{}");
+        return true;
+      }
+      t1 = map.get$length(map) * 2;
+      keyValueList = A.List_List$filled(t1, null, false, type$.nullable_Object);
+      i = _box_0.i = 0;
+      _box_0.allStringKeys = true;
+      map.forEach$1(0, new A._JsonStringifier_writeMap_closure(_box_0, keyValueList));
+      if (!_box_0.allStringKeys)
+        return false;
+      _this.writeString$1("{");
+      for (separator = '"'; i < t1; i += 2, separator = ',"') {
+        _this.writeString$1(separator);
+        _this.writeStringContent$1(A._asString(keyValueList[i]));
+        _this.writeString$1('":');
+        _this.writeObject$1(keyValueList[i + 1]);
+      }
+      _this.writeString$1("}");
+      return true;
+    }
+  };
+  A._JsonStringifier_writeMap_closure.prototype = {
+    call$2(key, value) {
+      var t1, t2, t3, i;
+      if (typeof key != "string")
+        this._box_0.allStringKeys = false;
+      t1 = this.keyValueList;
+      t2 = this._box_0;
+      t3 = t2.i;
+      i = t2.i = t3 + 1;
+      t1[t3] = key;
+      t2.i = i + 1;
+      t1[i] = value;
+    },
+    $signature: 168
+  };
+  A._JsonStringStringifier.prototype = {
+    get$_partialResult() {
+      var t1 = this._sink._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    writeNumber$1(number) {
+      var t1 = this._sink,
+        t2 = B.JSNumber_methods.toString$0(number);
+      t1._contents += t2;
+    },
+    writeString$1(string) {
+      this._sink._contents += string;
+    },
+    writeStringSlice$3(string, start, end) {
+      this._sink._contents += B.JSString_methods.substring$2(string, start, end);
+    },
+    writeCharCode$1(charCode) {
+      var t1 = this._sink,
+        t2 = A.Primitives_stringFromCharCode(charCode);
+      t1._contents += t2;
+    }
+  };
+  A.StringConversionSink.prototype = {};
+  A._StringSinkConversionSink.prototype = {
+    close$0(_) {
+    }
+  };
+  A._StringCallbackSink.prototype = {
+    close$0(_) {
+      var t1 = this._stringSink,
+        t2 = t1._contents;
+      t1._contents = "";
+      this._convert$_callback.call$1(t2.charCodeAt(0) == 0 ? t2 : t2);
+    },
+    asUtf8Sink$1(allowMalformed) {
+      return new A._Utf8StringSinkAdapter(new A._Utf8Decoder(allowMalformed), this, this._stringSink);
+    }
+  };
+  A._Utf8StringSinkAdapter.prototype = {
+    close$0(_) {
+      this._decoder.flush$1(this._stringSink);
+      this._sink.close$0(0);
+    },
+    add$1(_, chunk) {
+      this.addSlice$4(chunk, 0, J.get$length$asx(chunk), false);
+    },
+    addSlice$4(codeUnits, startIndex, endIndex, isLast) {
+      var t1 = this._stringSink,
+        t2 = this._decoder._convertGeneral$4(codeUnits, startIndex, endIndex, false);
+      t1._contents += t2;
+      if (isLast)
+        this.close$0(0);
+    }
+  };
+  A.Utf8Codec.prototype = {
+    encode$1(string) {
+      return B.C_Utf8Encoder.convert$1(string);
+    }
+  };
+  A.Utf8Encoder.prototype = {
+    convert$1(string) {
+      var t1, encoder,
+        end = A.RangeError_checkValidRange(0, null, string.length),
+        $length = end - 0;
+      if ($length === 0)
+        return new Uint8Array(0);
+      t1 = new Uint8Array($length * 3);
+      encoder = new A._Utf8Encoder(t1);
+      if (encoder._fillBuffer$3(string, 0, end) !== end)
+        encoder._writeReplacementCharacter$0();
+      return B.NativeUint8List_methods.sublist$2(t1, 0, encoder._bufferIndex);
+    }
+  };
+  A._Utf8Encoder.prototype = {
+    _writeReplacementCharacter$0() {
+      var _this = this,
+        t1 = _this._buffer,
+        t2 = _this._bufferIndex,
+        t3 = _this._bufferIndex = t2 + 1;
+      t1[t2] = 239;
+      t2 = _this._bufferIndex = t3 + 1;
+      t1[t3] = 191;
+      _this._bufferIndex = t2 + 1;
+      t1[t2] = 189;
+    },
+    _writeSurrogate$2(leadingSurrogate, nextCodeUnit) {
+      var rune, t1, t2, t3, _this = this;
+      if ((nextCodeUnit & 64512) === 56320) {
+        rune = 65536 + ((leadingSurrogate & 1023) << 10) | nextCodeUnit & 1023;
+        t1 = _this._buffer;
+        t2 = _this._bufferIndex;
+        t3 = _this._bufferIndex = t2 + 1;
+        t1[t2] = rune >>> 18 | 240;
+        t2 = _this._bufferIndex = t3 + 1;
+        t1[t3] = rune >>> 12 & 63 | 128;
+        t3 = _this._bufferIndex = t2 + 1;
+        t1[t2] = rune >>> 6 & 63 | 128;
+        _this._bufferIndex = t3 + 1;
+        t1[t3] = rune & 63 | 128;
+        return true;
+      } else {
+        _this._writeReplacementCharacter$0();
+        return false;
+      }
+    },
+    _fillBuffer$3(str, start, end) {
+      var t1, t2, stringIndex, codeUnit, t3, stringIndex0, t4, _this = this;
+      if (start !== end && (str.charCodeAt(end - 1) & 64512) === 55296)
+        --end;
+      for (t1 = _this._buffer, t2 = t1.length, stringIndex = start; stringIndex < end; ++stringIndex) {
+        codeUnit = str.charCodeAt(stringIndex);
+        if (codeUnit <= 127) {
+          t3 = _this._bufferIndex;
+          if (t3 >= t2)
+            break;
+          _this._bufferIndex = t3 + 1;
+          t1[t3] = codeUnit;
+        } else {
+          t3 = codeUnit & 64512;
+          if (t3 === 55296) {
+            if (_this._bufferIndex + 4 > t2)
+              break;
+            stringIndex0 = stringIndex + 1;
+            if (_this._writeSurrogate$2(codeUnit, str.charCodeAt(stringIndex0)))
+              stringIndex = stringIndex0;
+          } else if (t3 === 56320) {
+            if (_this._bufferIndex + 3 > t2)
+              break;
+            _this._writeReplacementCharacter$0();
+          } else if (codeUnit <= 2047) {
+            t3 = _this._bufferIndex;
+            t4 = t3 + 1;
+            if (t4 >= t2)
+              break;
+            _this._bufferIndex = t4;
+            t1[t3] = codeUnit >>> 6 | 192;
+            _this._bufferIndex = t4 + 1;
+            t1[t4] = codeUnit & 63 | 128;
+          } else {
+            t3 = _this._bufferIndex;
+            if (t3 + 2 >= t2)
+              break;
+            t4 = _this._bufferIndex = t3 + 1;
+            t1[t3] = codeUnit >>> 12 | 224;
+            t3 = _this._bufferIndex = t4 + 1;
+            t1[t4] = codeUnit >>> 6 & 63 | 128;
+            _this._bufferIndex = t3 + 1;
+            t1[t3] = codeUnit & 63 | 128;
+          }
+        }
+      }
+      return stringIndex;
+    }
+  };
+  A.Utf8Decoder.prototype = {
+    convert$1(codeUnits) {
+      return new A._Utf8Decoder(this._allowMalformed)._convertGeneral$4(codeUnits, 0, null, true);
+    }
+  };
+  A._Utf8Decoder.prototype = {
+    _convertGeneral$4(codeUnits, start, maybeEnd, single) {
+      var casted, bytes, errorOffset, t1, result, message, _this = this,
+        end = A.RangeError_checkValidRange(start, maybeEnd, J.get$length$asx(codeUnits));
+      if (start === end)
+        return "";
+      if (codeUnits instanceof Uint8Array) {
+        casted = codeUnits;
+        bytes = casted;
+        errorOffset = 0;
+      } else {
+        bytes = A._Utf8Decoder__makeNativeUint8List(codeUnits, start, end);
+        end -= start;
+        errorOffset = start;
+        start = 0;
+      }
+      if (single && end - start >= 15) {
+        t1 = _this.allowMalformed;
+        result = A._Utf8Decoder__convertInterceptedUint8List(t1, bytes, start, end);
+        if (result != null) {
+          if (!t1)
+            return result;
+          if (result.indexOf("\ufffd") < 0)
+            return result;
+        }
+      }
+      result = _this._decodeRecursive$4(bytes, start, end, single);
+      t1 = _this._convert$_state;
+      if ((t1 & 1) !== 0) {
+        message = A._Utf8Decoder_errorDescription(t1);
+        _this._convert$_state = 0;
+        throw A.wrapException(A.FormatException$(message, codeUnits, errorOffset + _this._charOrIndex));
+      }
+      return result;
+    },
+    _decodeRecursive$4(bytes, start, end, single) {
+      var mid, s1, _this = this;
+      if (end - start > 1000) {
+        mid = B.JSInt_methods._tdivFast$1(start + end, 2);
+        s1 = _this._decodeRecursive$4(bytes, start, mid, false);
+        if ((_this._convert$_state & 1) !== 0)
+          return s1;
+        return s1 + _this._decodeRecursive$4(bytes, mid, end, single);
+      }
+      return _this.decodeGeneral$4(bytes, start, end, single);
+    },
+    flush$1(sink) {
+      var t1,
+        state = this._convert$_state;
+      this._convert$_state = 0;
+      if (state <= 32)
+        return;
+      if (this.allowMalformed) {
+        t1 = A.Primitives_stringFromCharCode(65533);
+        sink._contents += t1;
+      } else
+        throw A.wrapException(A.FormatException$(A._Utf8Decoder_errorDescription(77), null, null));
+    },
+    decodeGeneral$4(bytes, start, end, single) {
+      var t1, type, t2, i0, markEnd, i1, m, _this = this, _65533 = 65533,
+        state = _this._convert$_state,
+        char = _this._charOrIndex,
+        buffer = new A.StringBuffer(""),
+        i = start + 1,
+        byte = bytes[start];
+      $label0$0:
+        for (t1 = _this.allowMalformed; true;) {
+          for (; true; i = i0) {
+            type = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFFFFFFFFFFFFFFFFGGGGGGGGGGGGGGGGHHHHHHHHHHHHHHHHHHHHHHHHHHHIHHHJEEBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBKCCCCCCCCCCCCDCLONNNMEEEEEEEEEEE".charCodeAt(byte) & 31;
+            char = state <= 32 ? byte & 61694 >>> type : (byte & 63 | char << 6) >>> 0;
+            state = " \x000:XECCCCCN:lDb \x000:XECCCCCNvlDb \x000:XECCCCCN:lDb AAAAA\x00\x00\x00\x00\x00AAAAA00000AAAAA:::::AAAAAGG000AAAAA00KKKAAAAAG::::AAAAA:IIIIAAAAA000\x800AAAAA\x00\x00\x00\x00 AAAAA".charCodeAt(state + type);
+            if (state === 0) {
+              t2 = A.Primitives_stringFromCharCode(char);
+              buffer._contents += t2;
+              if (i === end)
+                break $label0$0;
+              break;
+            } else if ((state & 1) !== 0) {
+              if (t1)
+                switch (state) {
+                  case 69:
+                  case 67:
+                    t2 = A.Primitives_stringFromCharCode(_65533);
+                    buffer._contents += t2;
+                    break;
+                  case 65:
+                    t2 = A.Primitives_stringFromCharCode(_65533);
+                    buffer._contents += t2;
+                    --i;
+                    break;
+                  default:
+                    t2 = A.Primitives_stringFromCharCode(_65533);
+                    t2 = buffer._contents += t2;
+                    buffer._contents = t2 + A.Primitives_stringFromCharCode(_65533);
+                    break;
+                }
+              else {
+                _this._convert$_state = state;
+                _this._charOrIndex = i - 1;
+                return "";
+              }
+              state = 0;
+            }
+            if (i === end)
+              break $label0$0;
+            i0 = i + 1;
+            byte = bytes[i];
+          }
+          i0 = i + 1;
+          byte = bytes[i];
+          if (byte < 128) {
+            while (true) {
+              if (!(i0 < end)) {
+                markEnd = end;
+                break;
+              }
+              i1 = i0 + 1;
+              byte = bytes[i0];
+              if (byte >= 128) {
+                markEnd = i1 - 1;
+                i0 = i1;
+                break;
+              }
+              i0 = i1;
+            }
+            if (markEnd - i < 20)
+              for (m = i; m < markEnd; ++m) {
+                t2 = A.Primitives_stringFromCharCode(bytes[m]);
+                buffer._contents += t2;
+              }
+            else {
+              t2 = A.String_String$fromCharCodes(bytes, i, markEnd);
+              buffer._contents += t2;
+            }
+            if (markEnd === end)
+              break $label0$0;
+            i = i0;
+          } else
+            i = i0;
+        }
+      if (single && state > 32)
+        if (t1) {
+          t1 = A.Primitives_stringFromCharCode(_65533);
+          buffer._contents += t1;
+        } else {
+          _this._convert$_state = 77;
+          _this._charOrIndex = end;
+          return "";
+        }
+      _this._convert$_state = state;
+      _this._charOrIndex = char;
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A.NoSuchMethodError_toString_closure.prototype = {
+    call$2(key, value) {
+      var t1 = this.sb,
+        t2 = this._box_0,
+        t3 = t1._contents += t2.comma;
+      t3 += key.__internal$_name;
+      t1._contents = t3;
+      t1._contents = t3 + ": ";
+      t3 = A.Error_safeToString(value);
+      t1._contents += t3;
+      t2.comma = ", ";
+    },
+    $signature: 335
+  };
+  A.DateTime.prototype = {
+    $eq(_, other) {
+      var t1;
+      if (other == null)
+        return false;
+      if (other instanceof A.DateTime)
+        t1 = this._value === other._value;
+      else
+        t1 = false;
+      return t1;
+    },
+    compareTo$1(_, other) {
+      return B.JSInt_methods.compareTo$1(this._value, other._value);
+    },
+    get$hashCode(_) {
+      var t1 = this._value;
+      return (t1 ^ B.JSInt_methods._shrOtherPositive$1(t1, 30)) & 1073741823;
+    },
+    toString$0(_) {
+      var _this = this,
+        y = A.DateTime__fourDigits(A.Primitives_getYear(_this)),
+        m = A.DateTime__twoDigits(A.Primitives_getMonth(_this)),
+        d = A.DateTime__twoDigits(A.Primitives_getDay(_this)),
+        h = A.DateTime__twoDigits(A.Primitives_getHours(_this)),
+        min = A.DateTime__twoDigits(A.Primitives_getMinutes(_this)),
+        sec = A.DateTime__twoDigits(A.Primitives_getSeconds(_this)),
+        ms = A.DateTime__threeDigits(A.Primitives_getMilliseconds(_this));
+      return y + "-" + m + "-" + d + " " + h + ":" + min + ":" + sec + "." + ms;
+    },
+    $isComparable: 1
+  };
+  A.Duration.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.Duration && this._duration === other._duration;
+    },
+    get$hashCode(_) {
+      return B.JSInt_methods.get$hashCode(this._duration);
+    },
+    compareTo$1(_, other) {
+      return B.JSInt_methods.compareTo$1(this._duration, other._duration);
+    },
+    toString$0(_) {
+      var sign, minutes, minutesPadding, seconds, secondsPadding,
+        microseconds = this._duration,
+        hours = B.JSInt_methods._tdivFast$1(microseconds, 3600000000),
+        microseconds0 = microseconds % 3600000000;
+      if (microseconds < 0) {
+        hours = 0 - hours;
+        microseconds = 0 - microseconds0;
+        sign = "-";
+      } else {
+        microseconds = microseconds0;
+        sign = "";
+      }
+      minutes = B.JSInt_methods._tdivFast$1(microseconds, 60000000);
+      microseconds %= 60000000;
+      minutesPadding = minutes < 10 ? "0" : "";
+      seconds = B.JSInt_methods._tdivFast$1(microseconds, 1000000);
+      secondsPadding = seconds < 10 ? "0" : "";
+      return sign + hours + ":" + minutesPadding + minutes + ":" + secondsPadding + seconds + "." + B.JSString_methods.padLeft$2(B.JSInt_methods.toString$0(microseconds % 1000000), 6, "0");
+    },
+    $isComparable: 1
+  };
+  A._Enum.prototype = {
+    toString$0(_) {
+      return this._enumToString$0();
+    }
+  };
+  A.Error.prototype = {
+    get$stackTrace() {
+      return A.Primitives_extractStackTrace(this);
+    }
+  };
+  A.AssertionError.prototype = {
+    toString$0(_) {
+      var t1 = this.message;
+      if (t1 != null)
+        return "Assertion failed: " + A.Error_safeToString(t1);
+      return "Assertion failed";
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.TypeError.prototype = {};
+  A.ArgumentError.prototype = {
+    get$_errorName() {
+      return "Invalid argument" + (!this._hasValue ? "(s)" : "");
+    },
+    get$_errorExplanation() {
+      return "";
+    },
+    toString$0(_) {
+      var _this = this,
+        $name = _this.name,
+        nameString = $name == null ? "" : " (" + $name + ")",
+        message = _this.message,
+        messageString = message == null ? "" : ": " + A.S(message),
+        prefix = _this.get$_errorName() + nameString + messageString;
+      if (!_this._hasValue)
+        return prefix;
+      return prefix + _this.get$_errorExplanation() + ": " + A.Error_safeToString(_this.get$invalidValue());
+    },
+    get$invalidValue() {
+      return this.invalidValue;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.RangeError.prototype = {
+    get$invalidValue() {
+      return this.invalidValue;
+    },
+    get$_errorName() {
+      return "RangeError";
+    },
+    get$_errorExplanation() {
+      var explanation,
+        start = this.start,
+        end = this.end;
+      if (start == null)
+        explanation = end != null ? ": Not less than or equal to " + A.S(end) : "";
+      else if (end == null)
+        explanation = ": Not greater than or equal to " + A.S(start);
+      else if (end > start)
+        explanation = ": Not in inclusive range " + A.S(start) + ".." + A.S(end);
+      else
+        explanation = end < start ? ": Valid value range is empty" : ": Only valid value is " + A.S(start);
+      return explanation;
+    }
+  };
+  A.IndexError.prototype = {
+    get$invalidValue() {
+      return this.invalidValue;
+    },
+    get$_errorName() {
+      return "RangeError";
+    },
+    get$_errorExplanation() {
+      if (this.invalidValue < 0)
+        return ": index must not be negative";
+      var t1 = this.length;
+      if (t1 === 0)
+        return ": no indices are valid";
+      return ": index should be less than " + t1;
+    },
+    $isRangeError: 1,
+    get$length(receiver) {
+      return this.length;
+    }
+  };
+  A.NoSuchMethodError.prototype = {
+    toString$0(_) {
+      var $arguments, t1, _i, t2, t3, argument, receiverText, actualParameters, _this = this, _box_0 = {},
+        sb = new A.StringBuffer("");
+      _box_0.comma = "";
+      $arguments = _this._core$_arguments;
+      for (t1 = $arguments.length, _i = 0, t2 = "", t3 = ""; _i < t1; ++_i, t3 = ", ") {
+        argument = $arguments[_i];
+        sb._contents = t2 + t3;
+        t2 = A.Error_safeToString(argument);
+        t2 = sb._contents += t2;
+        _box_0.comma = ", ";
+      }
+      _this._namedArguments.forEach$1(0, new A.NoSuchMethodError_toString_closure(_box_0, sb));
+      receiverText = A.Error_safeToString(_this._core$_receiver);
+      actualParameters = sb.toString$0(0);
+      return "NoSuchMethodError: method not found: '" + _this._memberName.__internal$_name + "'\nReceiver: " + receiverText + "\nArguments: [" + actualParameters + "]";
+    }
+  };
+  A.UnsupportedError.prototype = {
+    toString$0(_) {
+      return "Unsupported operation: " + this.message;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.UnimplementedError.prototype = {
+    toString$0(_) {
+      return "UnimplementedError: " + this.message;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.StateError.prototype = {
+    toString$0(_) {
+      return "Bad state: " + this.message;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.ConcurrentModificationError.prototype = {
+    toString$0(_) {
+      var t1 = this.modifiedObject;
+      if (t1 == null)
+        return "Concurrent modification during iteration.";
+      return "Concurrent modification during iteration: " + A.Error_safeToString(t1) + ".";
+    }
+  };
+  A.OutOfMemoryError.prototype = {
+    toString$0(_) {
+      return "Out of Memory";
+    },
+    get$stackTrace() {
+      return null;
+    },
+    $isError: 1
+  };
+  A.StackOverflowError.prototype = {
+    toString$0(_) {
+      return "Stack Overflow";
+    },
+    get$stackTrace() {
+      return null;
+    },
+    $isError: 1
+  };
+  A._Exception.prototype = {
+    toString$0(_) {
+      return "Exception: " + this.message;
+    },
+    $isException: 1,
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.FormatException.prototype = {
+    toString$0(_) {
+      var t1, lineNum, lineStart, previousCharWasCR, i, char, lineEnd, end, start, prefix, postfix,
+        message = this.message,
+        report = "" !== message ? "FormatException: " + message : "FormatException",
+        offset = this.offset,
+        source = this.source;
+      if (typeof source == "string") {
+        if (offset != null)
+          t1 = offset < 0 || offset > source.length;
+        else
+          t1 = false;
+        if (t1)
+          offset = null;
+        if (offset == null) {
+          if (source.length > 78)
+            source = B.JSString_methods.substring$2(source, 0, 75) + "...";
+          return report + "\n" + source;
+        }
+        for (lineNum = 1, lineStart = 0, previousCharWasCR = false, i = 0; i < offset; ++i) {
+          char = source.charCodeAt(i);
+          if (char === 10) {
+            if (lineStart !== i || !previousCharWasCR)
+              ++lineNum;
+            lineStart = i + 1;
+            previousCharWasCR = false;
+          } else if (char === 13) {
+            ++lineNum;
+            lineStart = i + 1;
+            previousCharWasCR = true;
+          }
+        }
+        report = lineNum > 1 ? report + (" (at line " + lineNum + ", character " + (offset - lineStart + 1) + ")\n") : report + (" (at character " + (offset + 1) + ")\n");
+        lineEnd = source.length;
+        for (i = offset; i < lineEnd; ++i) {
+          char = source.charCodeAt(i);
+          if (char === 10 || char === 13) {
+            lineEnd = i;
+            break;
+          }
+        }
+        if (lineEnd - lineStart > 78)
+          if (offset - lineStart < 75) {
+            end = lineStart + 75;
+            start = lineStart;
+            prefix = "";
+            postfix = "...";
+          } else {
+            if (lineEnd - offset < 75) {
+              start = lineEnd - 75;
+              end = lineEnd;
+              postfix = "";
+            } else {
+              start = offset - 36;
+              end = offset + 36;
+              postfix = "...";
+            }
+            prefix = "...";
+          }
+        else {
+          end = lineEnd;
+          start = lineStart;
+          prefix = "";
+          postfix = "";
+        }
+        return report + prefix + B.JSString_methods.substring$2(source, start, end) + postfix + "\n" + B.JSString_methods.$mul(" ", offset - start + prefix.length) + "^\n";
+      } else
+        return offset != null ? report + (" (at offset " + A.S(offset) + ")") : report;
+    },
+    $isException: 1,
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.Iterable.prototype = {
+    cast$1$0(_, $R) {
+      return A.CastIterable_CastIterable(this, A._instanceType(this)._eval$1("Iterable.E"), $R);
+    },
+    followedBy$1(_, other) {
+      var _this = this,
+        t1 = A._instanceType(_this);
+      if (t1._eval$1("EfficientLengthIterable<Iterable.E>")._is(_this))
+        return A.FollowedByIterable_FollowedByIterable$firstEfficient(_this, other, t1._eval$1("Iterable.E"));
+      return new A.FollowedByIterable(_this, other, t1._eval$1("FollowedByIterable<Iterable.E>"));
+    },
+    map$1$1(_, toElement, $T) {
+      return A.MappedIterable_MappedIterable(this, toElement, A._instanceType(this)._eval$1("Iterable.E"), $T);
+    },
+    where$1(_, test) {
+      return new A.WhereIterable(this, test, A._instanceType(this)._eval$1("WhereIterable<Iterable.E>"));
+    },
+    expand$1$1(_, toElements, $T) {
+      return new A.ExpandIterable(this, toElements, A._instanceType(this)._eval$1("@<Iterable.E>")._bind$1($T)._eval$1("ExpandIterable<1,2>"));
+    },
+    contains$1(_, element) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        if (J.$eq$(t1.get$current(t1), element))
+          return true;
+      return false;
+    },
+    forEach$1(_, action) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        action.call$1(t1.get$current(t1));
+    },
+    fold$1$2(_, initialValue, combine) {
+      var t1, value;
+      for (t1 = this.get$iterator(this), value = initialValue; t1.moveNext$0();)
+        value = combine.call$2(value, t1.get$current(t1));
+      return value;
+    },
+    fold$2(_, initialValue, combine) {
+      return this.fold$1$2(0, initialValue, combine, type$.dynamic);
+    },
+    every$1(_, test) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        if (!test.call$1(t1.get$current(t1)))
+          return false;
+      return true;
+    },
+    join$1(_, separator) {
+      var first, t1,
+        iterator = this.get$iterator(this);
+      if (!iterator.moveNext$0())
+        return "";
+      first = J.toString$0$(iterator.get$current(iterator));
+      if (!iterator.moveNext$0())
+        return first;
+      if (separator.length === 0) {
+        t1 = first;
+        do
+          t1 += A.S(J.toString$0$(iterator.get$current(iterator)));
+        while (iterator.moveNext$0());
+      } else {
+        t1 = first;
+        do
+          t1 = t1 + separator + A.S(J.toString$0$(iterator.get$current(iterator)));
+        while (iterator.moveNext$0());
+      }
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    any$1(_, test) {
+      var t1;
+      for (t1 = this.get$iterator(this); t1.moveNext$0();)
+        if (test.call$1(t1.get$current(t1)))
+          return true;
+      return false;
+    },
+    toList$1$growable(_, growable) {
+      return A.List_List$of(this, growable, A._instanceType(this)._eval$1("Iterable.E"));
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    },
+    toSet$0(_) {
+      return A.LinkedHashSet_LinkedHashSet$of(this, A._instanceType(this)._eval$1("Iterable.E"));
+    },
+    get$length(_) {
+      var count,
+        it = this.get$iterator(this);
+      for (count = 0; it.moveNext$0();)
+        ++count;
+      return count;
+    },
+    get$isEmpty(_) {
+      return !this.get$iterator(this).moveNext$0();
+    },
+    get$isNotEmpty(_) {
+      return !this.get$isEmpty(this);
+    },
+    take$1(_, count) {
+      return A.TakeIterable_TakeIterable(this, count, A._instanceType(this)._eval$1("Iterable.E"));
+    },
+    skip$1(_, count) {
+      return A.SkipIterable_SkipIterable(this, count, A._instanceType(this)._eval$1("Iterable.E"));
+    },
+    skipWhile$1(_, test) {
+      return new A.SkipWhileIterable(this, test, A._instanceType(this)._eval$1("SkipWhileIterable<Iterable.E>"));
+    },
+    get$first(_) {
+      var it = this.get$iterator(this);
+      if (!it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_noElement());
+      return it.get$current(it);
+    },
+    get$last(_) {
+      var result,
+        it = this.get$iterator(this);
+      if (!it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_noElement());
+      do
+        result = it.get$current(it);
+      while (it.moveNext$0());
+      return result;
+    },
+    get$single(_) {
+      var result,
+        it = this.get$iterator(this);
+      if (!it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_noElement());
+      result = it.get$current(it);
+      if (it.moveNext$0())
+        throw A.wrapException(A.IterableElementError_tooMany());
+      return result;
+    },
+    elementAt$1(_, index) {
+      var iterator, skipCount;
+      A.RangeError_checkNotNegative(index, "index");
+      iterator = this.get$iterator(this);
+      for (skipCount = index; iterator.moveNext$0();) {
+        if (skipCount === 0)
+          return iterator.get$current(iterator);
+        --skipCount;
+      }
+      throw A.wrapException(A.IndexError$withLength(index, index - skipCount, this, null, "index"));
+    },
+    toString$0(_) {
+      return A.Iterable_iterableToShortString(this, "(", ")");
+    }
+  };
+  A._GeneratorIterable.prototype = {
+    elementAt$1(_, index) {
+      A.IndexError_check(index, this.length, this, null, null);
+      return this._generator.call$1(index);
+    },
+    get$length(receiver) {
+      return this.length;
+    }
+  };
+  A.MapEntry.prototype = {
+    toString$0(_) {
+      return "MapEntry(" + A.S(this.key) + ": " + A.S(this.value) + ")";
+    }
+  };
+  A.Null.prototype = {
+    get$hashCode(_) {
+      return A.Object.prototype.get$hashCode.call(this, 0);
+    },
+    toString$0(_) {
+      return "null";
+    }
+  };
+  A.Object.prototype = {$isObject: 1,
+    $eq(_, other) {
+      return this === other;
+    },
+    get$hashCode(_) {
+      return A.Primitives_objectHashCode(this);
+    },
+    toString$0(_) {
+      return "Instance of '" + A.Primitives_objectTypeName(this) + "'";
+    },
+    noSuchMethod$1(_, invocation) {
+      throw A.wrapException(A.NoSuchMethodError_NoSuchMethodError$withInvocation(this, invocation));
+    },
+    get$runtimeType(_) {
+      return A.getRuntimeTypeOfDartObject(this);
+    },
+    toString() {
+      return this.toString$0(this);
+    }
+  };
+  A._StringStackTrace.prototype = {
+    toString$0(_) {
+      return this._stackTrace;
+    },
+    $isStackTrace: 1
+  };
+  A.Runes.prototype = {
+    get$iterator(_) {
+      return new A.RuneIterator(this.string);
+    },
+    get$last(_) {
+      var code, previousCode,
+        t1 = this.string,
+        t2 = t1.length;
+      if (t2 === 0)
+        throw A.wrapException(A.StateError$("No elements."));
+      code = t1.charCodeAt(t2 - 1);
+      if ((code & 64512) === 56320 && t2 > 1) {
+        previousCode = t1.charCodeAt(t2 - 2);
+        if ((previousCode & 64512) === 55296)
+          return A._combineSurrogatePair(previousCode, code);
+      }
+      return code;
+    }
+  };
+  A.RuneIterator.prototype = {
+    get$current(_) {
+      return this._currentCodePoint;
+    },
+    moveNext$0() {
+      var codeUnit, nextPosition, nextCodeUnit, _this = this,
+        t1 = _this._position = _this._nextPosition,
+        t2 = _this.string,
+        t3 = t2.length;
+      if (t1 === t3) {
+        _this._currentCodePoint = -1;
+        return false;
+      }
+      codeUnit = t2.charCodeAt(t1);
+      nextPosition = t1 + 1;
+      if ((codeUnit & 64512) === 55296 && nextPosition < t3) {
+        nextCodeUnit = t2.charCodeAt(nextPosition);
+        if ((nextCodeUnit & 64512) === 56320) {
+          _this._nextPosition = nextPosition + 1;
+          _this._currentCodePoint = A._combineSurrogatePair(codeUnit, nextCodeUnit);
+          return true;
+        }
+      }
+      _this._nextPosition = nextPosition;
+      _this._currentCodePoint = codeUnit;
+      return true;
+    }
+  };
+  A.StringBuffer.prototype = {
+    get$length(_) {
+      return this._contents.length;
+    },
+    write$1(_, obj) {
+      var t1 = A.S(obj);
+      this._contents += t1;
+    },
+    writeCharCode$1(charCode) {
+      var t1 = A.Primitives_stringFromCharCode(charCode);
+      this._contents += t1;
+    },
+    toString$0(_) {
+      var t1 = this._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A.Uri__parseIPv4Address_error.prototype = {
+    call$2(msg, position) {
+      throw A.wrapException(A.FormatException$("Illegal IPv4 address, " + msg, this.host, position));
+    },
+    $signature: 326
+  };
+  A.Uri_parseIPv6Address_error.prototype = {
+    call$2(msg, position) {
+      throw A.wrapException(A.FormatException$("Illegal IPv6 address, " + msg, this.host, position));
+    },
+    $signature: 306
+  };
+  A.Uri_parseIPv6Address_parseHex.prototype = {
+    call$2(start, end) {
+      var value;
+      if (end - start > 4)
+        this.error.call$2("an IPv6 part can only contain a maximum of 4 hex digits", start);
+      value = A.int_parse(B.JSString_methods.substring$2(this.host, start, end), 16);
+      if (value < 0 || value > 65535)
+        this.error.call$2("each part must be in the range of `0x0..0xFFFF`", start);
+      return value;
+    },
+    $signature: 294
+  };
+  A._Uri.prototype = {
+    get$_text() {
+      var t1, t2, t3, t4, _this = this,
+        value = _this.___Uri__text_FI;
+      if (value === $) {
+        t1 = _this.scheme;
+        t2 = t1.length !== 0 ? "" + t1 + ":" : "";
+        t3 = _this._host;
+        t4 = t3 == null;
+        if (!t4 || t1 === "file") {
+          t1 = t2 + "//";
+          t2 = _this._userInfo;
+          if (t2.length !== 0)
+            t1 = t1 + t2 + "@";
+          if (!t4)
+            t1 += t3;
+          t2 = _this._port;
+          if (t2 != null)
+            t1 = t1 + ":" + A.S(t2);
+        } else
+          t1 = t2;
+        t1 += _this.path;
+        t2 = _this._query;
+        if (t2 != null)
+          t1 = t1 + "?" + t2;
+        t2 = _this._fragment;
+        if (t2 != null)
+          t1 = t1 + "#" + t2;
+        value !== $ && A.throwUnnamedLateFieldADI();
+        value = _this.___Uri__text_FI = t1.charCodeAt(0) == 0 ? t1 : t1;
+      }
+      return value;
+    },
+    get$pathSegments() {
+      var pathToSplit, result, _this = this,
+        value = _this.___Uri_pathSegments_FI;
+      if (value === $) {
+        pathToSplit = _this.path;
+        if (pathToSplit.length !== 0 && pathToSplit.charCodeAt(0) === 47)
+          pathToSplit = B.JSString_methods.substring$1(pathToSplit, 1);
+        result = pathToSplit.length === 0 ? B.List_empty : A.List_List$unmodifiable(new A.MappedListIterable(A._setArrayType(pathToSplit.split("/"), type$.JSArray_String), A.core_Uri_decodeComponent$closure(), type$.MappedListIterable_String_dynamic), type$.String);
+        _this.___Uri_pathSegments_FI !== $ && A.throwUnnamedLateFieldADI();
+        value = _this.___Uri_pathSegments_FI = result;
+      }
+      return value;
+    },
+    get$hashCode(_) {
+      var result, _this = this,
+        value = _this.___Uri_hashCode_FI;
+      if (value === $) {
+        result = B.JSString_methods.get$hashCode(_this.get$_text());
+        _this.___Uri_hashCode_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.___Uri_hashCode_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$userInfo() {
+      return this._userInfo;
+    },
+    get$host() {
+      var host = this._host;
+      if (host == null)
+        return "";
+      if (B.JSString_methods.startsWith$1(host, "["))
+        return B.JSString_methods.substring$2(host, 1, host.length - 1);
+      return host;
+    },
+    get$port(_) {
+      var t1 = this._port;
+      return t1 == null ? A._Uri__defaultPort(this.scheme) : t1;
+    },
+    get$query() {
+      var t1 = this._query;
+      return t1 == null ? "" : t1;
+    },
+    get$fragment() {
+      var t1 = this._fragment;
+      return t1 == null ? "" : t1;
+    },
+    isScheme$1(scheme) {
+      var thisScheme = this.scheme;
+      if (scheme.length !== thisScheme.length)
+        return false;
+      return A._caseInsensitiveCompareStart(scheme, thisScheme, 0) >= 0;
+    },
+    replace$1$scheme(scheme) {
+      var isFile, userInfo, port, host, currentPath, t1, path, _this = this;
+      scheme = A._Uri__makeScheme(scheme, 0, scheme.length);
+      isFile = scheme === "file";
+      userInfo = _this._userInfo;
+      port = _this._port;
+      if (scheme !== _this.scheme)
+        port = A._Uri__makePort(port, scheme);
+      host = _this._host;
+      if (!(host != null))
+        host = userInfo.length !== 0 || port != null || isFile ? "" : null;
+      currentPath = _this.path;
+      if (!isFile)
+        t1 = host != null && currentPath.length !== 0;
+      else
+        t1 = true;
+      if (t1 && !B.JSString_methods.startsWith$1(currentPath, "/"))
+        currentPath = "/" + currentPath;
+      path = currentPath;
+      return A._Uri$_internal(scheme, userInfo, host, port, path, _this._query, _this._fragment);
+    },
+    _mergePaths$2(base, reference) {
+      var backCount, refStart, baseEnd, newEnd, delta, t1;
+      for (backCount = 0, refStart = 0; B.JSString_methods.startsWith$2(reference, "../", refStart);) {
+        refStart += 3;
+        ++backCount;
+      }
+      baseEnd = B.JSString_methods.lastIndexOf$1(base, "/");
+      while (true) {
+        if (!(baseEnd > 0 && backCount > 0))
+          break;
+        newEnd = B.JSString_methods.lastIndexOf$2(base, "/", baseEnd - 1);
+        if (newEnd < 0)
+          break;
+        delta = baseEnd - newEnd;
+        t1 = delta !== 2;
+        if (!t1 || delta === 3)
+          if (base.charCodeAt(newEnd + 1) === 46)
+            t1 = !t1 || base.charCodeAt(newEnd + 2) === 46;
+          else
+            t1 = false;
+        else
+          t1 = false;
+        if (t1)
+          break;
+        --backCount;
+        baseEnd = newEnd;
+      }
+      return B.JSString_methods.replaceRange$3(base, baseEnd + 1, null, B.JSString_methods.substring$1(reference, refStart - 3 * backCount));
+    },
+    resolve$1(_, reference) {
+      return this.resolveUri$1(A.Uri_parse(reference));
+    },
+    resolveUri$1(reference) {
+      var targetScheme, targetUserInfo, targetHost, targetPort, targetPath, targetQuery, split, packageNameEnd, packageName, mergedPath, t1, fragment, _this = this, _null = null;
+      if (reference.get$scheme().length !== 0) {
+        if (type$._PlatformUri._is(reference))
+          return reference;
+        targetScheme = reference.get$scheme();
+        if (reference.get$hasAuthority()) {
+          targetUserInfo = reference.get$userInfo();
+          targetHost = reference.get$host();
+          targetPort = reference.get$hasPort() ? reference.get$port(reference) : _null;
+        } else {
+          targetPort = _null;
+          targetHost = targetPort;
+          targetUserInfo = "";
+        }
+        targetPath = A._Uri__removeDotSegments(reference.get$path(reference));
+        targetQuery = reference.get$hasQuery() ? reference.get$query() : _null;
+        split = 0;
+      } else {
+        targetScheme = _this.scheme;
+        if (reference.get$hasAuthority()) {
+          if (type$._PlatformUri._is(reference))
+            return reference.replace$1$scheme(targetScheme);
+          targetUserInfo = reference.get$userInfo();
+          targetHost = reference.get$host();
+          targetPort = A._Uri__makePort(reference.get$hasPort() ? reference.get$port(reference) : _null, targetScheme);
+          targetPath = A._Uri__removeDotSegments(reference.get$path(reference));
+          targetQuery = reference.get$hasQuery() ? reference.get$query() : _null;
+          split = 1;
+        } else {
+          targetUserInfo = _this._userInfo;
+          targetHost = _this._host;
+          targetPort = _this._port;
+          targetPath = _this.path;
+          if (reference.get$hasEmptyPath())
+            if (reference.get$hasQuery()) {
+              targetQuery = reference.get$query();
+              split = 3;
+            } else {
+              targetQuery = _this._query;
+              split = 4;
+            }
+          else {
+            packageNameEnd = A._Uri__packageNameEnd(_this, targetPath);
+            if (packageNameEnd > 0) {
+              packageName = B.JSString_methods.substring$2(targetPath, 0, packageNameEnd);
+              targetPath = reference.get$hasAbsolutePath() ? packageName + A._Uri__removeDotSegments(reference.get$path(reference)) : packageName + A._Uri__removeDotSegments(_this._mergePaths$2(B.JSString_methods.substring$1(targetPath, packageName.length), reference.get$path(reference)));
+            } else if (reference.get$hasAbsolutePath())
+              targetPath = A._Uri__removeDotSegments(reference.get$path(reference));
+            else if (targetPath.length === 0)
+              if (targetHost == null)
+                targetPath = targetScheme.length === 0 ? reference.get$path(reference) : A._Uri__removeDotSegments(reference.get$path(reference));
+              else
+                targetPath = A._Uri__removeDotSegments("/" + reference.get$path(reference));
+            else {
+              mergedPath = _this._mergePaths$2(targetPath, reference.get$path(reference));
+              t1 = targetScheme.length === 0;
+              if (!t1 || targetHost != null || B.JSString_methods.startsWith$1(targetPath, "/"))
+                targetPath = A._Uri__removeDotSegments(mergedPath);
+              else
+                targetPath = A._Uri__normalizeRelativePath(mergedPath, !t1 || targetHost != null);
+            }
+            targetQuery = reference.get$hasQuery() ? reference.get$query() : _null;
+            split = 2;
+          }
+        }
+      }
+      fragment = reference.get$hasFragment() ? reference.get$fragment() : _null;
+      if (!type$._PlatformUri._is(reference)) {
+        if (split === 0)
+          targetScheme = A._Uri__makeScheme(targetScheme, 0, targetScheme.length);
+        if (split <= 1) {
+          targetUserInfo = A._Uri__makeUserInfo(targetUserInfo, 0, targetUserInfo.length);
+          if (targetPort != null)
+            targetPort = A._Uri__makePort(targetPort, targetScheme);
+          if (targetHost != null && targetHost.length !== 0)
+            targetHost = A._Uri__makeHost(targetHost, 0, targetHost.length, false);
+        }
+        t1 = split <= 3;
+        if (t1)
+          targetPath = A._Uri__makePath(targetPath, 0, targetPath.length, _null, targetScheme, targetHost != null);
+        if (t1 && targetQuery != null)
+          targetQuery = A._Uri__makeQuery(targetQuery, 0, targetQuery.length, _null);
+        if (fragment != null)
+          fragment = A._Uri__makeFragment(fragment, 0, fragment.length);
+      }
+      return A._Uri$_internal(targetScheme, targetUserInfo, targetHost, targetPort, targetPath, targetQuery, fragment);
+    },
+    get$hasAuthority() {
+      return this._host != null;
+    },
+    get$hasPort() {
+      return this._port != null;
+    },
+    get$hasQuery() {
+      return this._query != null;
+    },
+    get$hasFragment() {
+      return this._fragment != null;
+    },
+    get$hasEmptyPath() {
+      return this.path.length === 0;
+    },
+    get$hasAbsolutePath() {
+      return B.JSString_methods.startsWith$1(this.path, "/");
+    },
+    toFilePath$0() {
+      var pathSegments, _this = this,
+        t1 = _this.scheme;
+      if (t1 !== "" && t1 !== "file")
+        throw A.wrapException(A.UnsupportedError$("Cannot extract a file path from a " + t1 + " URI"));
+      t1 = _this._query;
+      if ((t1 == null ? "" : t1) !== "")
+        throw A.wrapException(A.UnsupportedError$(string$.Cannotfq));
+      t1 = _this._fragment;
+      if ((t1 == null ? "" : t1) !== "")
+        throw A.wrapException(A.UnsupportedError$(string$.Cannotff));
+      t1 = $.$get$_Uri__isWindowsCached();
+      if (t1)
+        t1 = A._Uri__toWindowsFilePath(_this);
+      else {
+        if (_this._host != null && _this.get$host() !== "")
+          A.throwExpression(A.UnsupportedError$(string$.Cannotn));
+        pathSegments = _this.get$pathSegments();
+        A._Uri__checkNonWindowsPathReservedCharacters(pathSegments, false);
+        t1 = A.StringBuffer__writeAll(B.JSString_methods.startsWith$1(_this.path, "/") ? "" + "/" : "", pathSegments, "/");
+        t1 = t1.charCodeAt(0) == 0 ? t1 : t1;
+      }
+      return t1;
+    },
+    toString$0(_) {
+      return this.get$_text();
+    },
+    $eq(_, other) {
+      var t1, t2, _this = this;
+      if (other == null)
+        return false;
+      if (_this === other)
+        return true;
+      if (type$.Uri._is(other))
+        if (_this.scheme === other.get$scheme())
+          if (_this._host != null === other.get$hasAuthority())
+            if (_this._userInfo === other.get$userInfo())
+              if (_this.get$host() === other.get$host())
+                if (_this.get$port(0) === other.get$port(other))
+                  if (_this.path === other.get$path(other)) {
+                    t1 = _this._query;
+                    t2 = t1 == null;
+                    if (!t2 === other.get$hasQuery()) {
+                      if (t2)
+                        t1 = "";
+                      if (t1 === other.get$query()) {
+                        t1 = _this._fragment;
+                        t2 = t1 == null;
+                        if (!t2 === other.get$hasFragment()) {
+                          if (t2)
+                            t1 = "";
+                          t1 = t1 === other.get$fragment();
+                        } else
+                          t1 = false;
+                      } else
+                        t1 = false;
+                    } else
+                      t1 = false;
+                  } else
+                    t1 = false;
+                else
+                  t1 = false;
+              else
+                t1 = false;
+            else
+              t1 = false;
+          else
+            t1 = false;
+        else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    $isUri: 1,
+    $is_PlatformUri: 1,
+    get$scheme() {
+      return this.scheme;
+    },
+    get$path(receiver) {
+      return this.path;
+    }
+  };
+  A._Uri__makePath_closure.prototype = {
+    call$1(s) {
+      return A._Uri__uriEncode(B.List_M2I0, s, B.C_Utf8Codec, false);
+    },
+    $signature: 5
+  };
+  A.UriData.prototype = {
+    get$uri() {
+      var t2, queryIndex, end, query, _this = this, _null = null,
+        t1 = _this._uriCache;
+      if (t1 == null) {
+        t1 = _this._text;
+        t2 = _this._separatorIndices[0] + 1;
+        queryIndex = B.JSString_methods.indexOf$2(t1, "?", t2);
+        end = t1.length;
+        if (queryIndex >= 0) {
+          query = A._Uri__normalizeOrSubstring(t1, queryIndex + 1, end, B.List_42A, false, false);
+          end = queryIndex;
+        } else
+          query = _null;
+        t1 = _this._uriCache = new A._DataUri("data", "", _null, _null, A._Uri__normalizeOrSubstring(t1, t2, end, B.List_M2I, false, false), query, _null);
+      }
+      return t1;
+    },
+    toString$0(_) {
+      var t1 = this._text;
+      return this._separatorIndices[0] === -1 ? "data:" + t1 : t1;
+    }
+  };
+  A._createTables_build.prototype = {
+    call$2(state, defaultTransition) {
+      var t1 = this.tables[state];
+      B.NativeUint8List_methods.fillRange$3(t1, 0, 96, defaultTransition);
+      return t1;
+    },
+    $signature: 298
+  };
+  A._createTables_setChars.prototype = {
+    call$3(target, chars, transition) {
+      var t1, i;
+      for (t1 = chars.length, i = 0; i < t1; ++i)
+        target[chars.charCodeAt(i) ^ 96] = transition;
+    },
+    $signature: 230
+  };
+  A._createTables_setRange.prototype = {
+    call$3(target, range, transition) {
+      var i, n;
+      for (i = range.charCodeAt(0), n = range.charCodeAt(1); i <= n; ++i)
+        target[(i ^ 96) >>> 0] = transition;
+    },
+    $signature: 230
+  };
+  A._SimpleUri.prototype = {
+    get$hasAuthority() {
+      return this._hostStart > 0;
+    },
+    get$hasPort() {
+      return this._hostStart > 0 && this._portStart + 1 < this._pathStart;
+    },
+    get$hasQuery() {
+      return this._queryStart < this._fragmentStart;
+    },
+    get$hasFragment() {
+      return this._fragmentStart < this._uri.length;
+    },
+    get$hasAbsolutePath() {
+      return B.JSString_methods.startsWith$2(this._uri, "/", this._pathStart);
+    },
+    get$hasEmptyPath() {
+      return this._pathStart === this._queryStart;
+    },
+    get$scheme() {
+      var t1 = this._schemeCache;
+      return t1 == null ? this._schemeCache = this._computeScheme$0() : t1;
+    },
+    _computeScheme$0() {
+      var t2, _this = this,
+        t1 = _this._schemeEnd;
+      if (t1 <= 0)
+        return "";
+      t2 = t1 === 4;
+      if (t2 && B.JSString_methods.startsWith$1(_this._uri, "http"))
+        return "http";
+      if (t1 === 5 && B.JSString_methods.startsWith$1(_this._uri, "https"))
+        return "https";
+      if (t2 && B.JSString_methods.startsWith$1(_this._uri, "file"))
+        return "file";
+      if (t1 === 7 && B.JSString_methods.startsWith$1(_this._uri, "package"))
+        return "package";
+      return B.JSString_methods.substring$2(_this._uri, 0, t1);
+    },
+    get$userInfo() {
+      var t1 = this._hostStart,
+        t2 = this._schemeEnd + 3;
+      return t1 > t2 ? B.JSString_methods.substring$2(this._uri, t2, t1 - 1) : "";
+    },
+    get$host() {
+      var t1 = this._hostStart;
+      return t1 > 0 ? B.JSString_methods.substring$2(this._uri, t1, this._portStart) : "";
+    },
+    get$port(_) {
+      var t1, _this = this;
+      if (_this.get$hasPort())
+        return A.int_parse(B.JSString_methods.substring$2(_this._uri, _this._portStart + 1, _this._pathStart), null);
+      t1 = _this._schemeEnd;
+      if (t1 === 4 && B.JSString_methods.startsWith$1(_this._uri, "http"))
+        return 80;
+      if (t1 === 5 && B.JSString_methods.startsWith$1(_this._uri, "https"))
+        return 443;
+      return 0;
+    },
+    get$path(_) {
+      return B.JSString_methods.substring$2(this._uri, this._pathStart, this._queryStart);
+    },
+    get$query() {
+      var t1 = this._queryStart,
+        t2 = this._fragmentStart;
+      return t1 < t2 ? B.JSString_methods.substring$2(this._uri, t1 + 1, t2) : "";
+    },
+    get$fragment() {
+      var t1 = this._fragmentStart,
+        t2 = this._uri;
+      return t1 < t2.length ? B.JSString_methods.substring$1(t2, t1 + 1) : "";
+    },
+    get$pathSegments() {
+      var parts, i,
+        start = this._pathStart,
+        end = this._queryStart,
+        t1 = this._uri;
+      if (B.JSString_methods.startsWith$2(t1, "/", start))
+        ++start;
+      if (start === end)
+        return B.List_empty;
+      parts = A._setArrayType([], type$.JSArray_String);
+      for (i = start; i < end; ++i)
+        if (t1.charCodeAt(i) === 47) {
+          parts.push(B.JSString_methods.substring$2(t1, start, i));
+          start = i + 1;
+        }
+      parts.push(B.JSString_methods.substring$2(t1, start, end));
+      return A.List_List$unmodifiable(parts, type$.String);
+    },
+    _isPort$1(port) {
+      var portDigitStart = this._portStart + 1;
+      return portDigitStart + port.length === this._pathStart && B.JSString_methods.startsWith$2(this._uri, port, portDigitStart);
+    },
+    removeFragment$0() {
+      var _this = this,
+        t1 = _this._fragmentStart,
+        t2 = _this._uri;
+      if (t1 >= t2.length)
+        return _this;
+      return new A._SimpleUri(B.JSString_methods.substring$2(t2, 0, t1), _this._schemeEnd, _this._hostStart, _this._portStart, _this._pathStart, _this._queryStart, t1, _this._schemeCache);
+    },
+    replace$1$scheme(scheme) {
+      var schemeChanged, isFile, t1, userInfo, port, host, t2, path, t3, query, fragment, _this = this, _null = null;
+      scheme = A._Uri__makeScheme(scheme, 0, scheme.length);
+      schemeChanged = !(_this._schemeEnd === scheme.length && B.JSString_methods.startsWith$1(_this._uri, scheme));
+      isFile = scheme === "file";
+      t1 = _this._hostStart;
+      userInfo = t1 > 0 ? B.JSString_methods.substring$2(_this._uri, _this._schemeEnd + 3, t1) : "";
+      port = _this.get$hasPort() ? _this.get$port(0) : _null;
+      if (schemeChanged)
+        port = A._Uri__makePort(port, scheme);
+      t1 = _this._hostStart;
+      if (t1 > 0)
+        host = B.JSString_methods.substring$2(_this._uri, t1, _this._portStart);
+      else
+        host = userInfo.length !== 0 || port != null || isFile ? "" : _null;
+      t1 = _this._uri;
+      t2 = _this._queryStart;
+      path = B.JSString_methods.substring$2(t1, _this._pathStart, t2);
+      if (!isFile)
+        t3 = host != null && path.length !== 0;
+      else
+        t3 = true;
+      if (t3 && !B.JSString_methods.startsWith$1(path, "/"))
+        path = "/" + path;
+      t3 = _this._fragmentStart;
+      query = t2 < t3 ? B.JSString_methods.substring$2(t1, t2 + 1, t3) : _null;
+      t2 = _this._fragmentStart;
+      fragment = t2 < t1.length ? B.JSString_methods.substring$1(t1, t2 + 1) : _null;
+      return A._Uri$_internal(scheme, userInfo, host, port, path, query, fragment);
+    },
+    resolve$1(_, reference) {
+      return this.resolveUri$1(A.Uri_parse(reference));
+    },
+    resolveUri$1(reference) {
+      if (reference instanceof A._SimpleUri)
+        return this._simpleMerge$2(this, reference);
+      return this._toNonSimple$0().resolveUri$1(reference);
+    },
+    _simpleMerge$2(base, ref) {
+      var t2, t3, t4, isSimple, delta, refStart, basePathStart, packageNameEnd, basePathStart0, baseStart, baseEnd, baseUri, baseStart0, backCount, refStart0, insert,
+        t1 = ref._schemeEnd;
+      if (t1 > 0)
+        return ref;
+      t2 = ref._hostStart;
+      if (t2 > 0) {
+        t3 = base._schemeEnd;
+        if (t3 <= 0)
+          return ref;
+        t4 = t3 === 4;
+        if (t4 && B.JSString_methods.startsWith$1(base._uri, "file"))
+          isSimple = ref._pathStart !== ref._queryStart;
+        else if (t4 && B.JSString_methods.startsWith$1(base._uri, "http"))
+          isSimple = !ref._isPort$1("80");
+        else
+          isSimple = !(t3 === 5 && B.JSString_methods.startsWith$1(base._uri, "https")) || !ref._isPort$1("443");
+        if (isSimple) {
+          delta = t3 + 1;
+          return new A._SimpleUri(B.JSString_methods.substring$2(base._uri, 0, delta) + B.JSString_methods.substring$1(ref._uri, t1 + 1), t3, t2 + delta, ref._portStart + delta, ref._pathStart + delta, ref._queryStart + delta, ref._fragmentStart + delta, base._schemeCache);
+        } else
+          return this._toNonSimple$0().resolveUri$1(ref);
+      }
+      refStart = ref._pathStart;
+      t1 = ref._queryStart;
+      if (refStart === t1) {
+        t2 = ref._fragmentStart;
+        if (t1 < t2) {
+          t3 = base._queryStart;
+          delta = t3 - t1;
+          return new A._SimpleUri(B.JSString_methods.substring$2(base._uri, 0, t3) + B.JSString_methods.substring$1(ref._uri, t1), base._schemeEnd, base._hostStart, base._portStart, base._pathStart, t1 + delta, t2 + delta, base._schemeCache);
+        }
+        t1 = ref._uri;
+        if (t2 < t1.length) {
+          t3 = base._fragmentStart;
+          return new A._SimpleUri(B.JSString_methods.substring$2(base._uri, 0, t3) + B.JSString_methods.substring$1(t1, t2), base._schemeEnd, base._hostStart, base._portStart, base._pathStart, base._queryStart, t2 + (t3 - t2), base._schemeCache);
+        }
+        return base.removeFragment$0();
+      }
+      t2 = ref._uri;
+      if (B.JSString_methods.startsWith$2(t2, "/", refStart)) {
+        basePathStart = base._pathStart;
+        packageNameEnd = A._SimpleUri__packageNameEnd(this);
+        basePathStart0 = packageNameEnd > 0 ? packageNameEnd : basePathStart;
+        delta = basePathStart0 - refStart;
+        return new A._SimpleUri(B.JSString_methods.substring$2(base._uri, 0, basePathStart0) + B.JSString_methods.substring$1(t2, refStart), base._schemeEnd, base._hostStart, base._portStart, basePathStart, t1 + delta, ref._fragmentStart + delta, base._schemeCache);
+      }
+      baseStart = base._pathStart;
+      baseEnd = base._queryStart;
+      if (baseStart === baseEnd && base._hostStart > 0) {
+        for (; B.JSString_methods.startsWith$2(t2, "../", refStart);)
+          refStart += 3;
+        delta = baseStart - refStart + 1;
+        return new A._SimpleUri(B.JSString_methods.substring$2(base._uri, 0, baseStart) + "/" + B.JSString_methods.substring$1(t2, refStart), base._schemeEnd, base._hostStart, base._portStart, baseStart, t1 + delta, ref._fragmentStart + delta, base._schemeCache);
+      }
+      baseUri = base._uri;
+      packageNameEnd = A._SimpleUri__packageNameEnd(this);
+      if (packageNameEnd >= 0)
+        baseStart0 = packageNameEnd;
+      else
+        for (baseStart0 = baseStart; B.JSString_methods.startsWith$2(baseUri, "../", baseStart0);)
+          baseStart0 += 3;
+      backCount = 0;
+      while (true) {
+        refStart0 = refStart + 3;
+        if (!(refStart0 <= t1 && B.JSString_methods.startsWith$2(t2, "../", refStart)))
+          break;
+        ++backCount;
+        refStart = refStart0;
+      }
+      for (insert = ""; baseEnd > baseStart0;) {
+        --baseEnd;
+        if (baseUri.charCodeAt(baseEnd) === 47) {
+          if (backCount === 0) {
+            insert = "/";
+            break;
+          }
+          --backCount;
+          insert = "/";
+        }
+      }
+      if (baseEnd === baseStart0 && base._schemeEnd <= 0 && !B.JSString_methods.startsWith$2(baseUri, "/", baseStart)) {
+        refStart -= backCount * 3;
+        insert = "";
+      }
+      delta = baseEnd - refStart + insert.length;
+      return new A._SimpleUri(B.JSString_methods.substring$2(baseUri, 0, baseEnd) + insert + B.JSString_methods.substring$1(t2, refStart), base._schemeEnd, base._hostStart, base._portStart, baseStart, t1 + delta, ref._fragmentStart + delta, base._schemeCache);
+    },
+    toFilePath$0() {
+      var t2, t3, _this = this,
+        t1 = _this._schemeEnd;
+      if (t1 >= 0) {
+        t2 = !(t1 === 4 && B.JSString_methods.startsWith$1(_this._uri, "file"));
+        t1 = t2;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(A.UnsupportedError$("Cannot extract a file path from a " + _this.get$scheme() + " URI"));
+      t1 = _this._queryStart;
+      t2 = _this._uri;
+      if (t1 < t2.length) {
+        if (t1 < _this._fragmentStart)
+          throw A.wrapException(A.UnsupportedError$(string$.Cannotfq));
+        throw A.wrapException(A.UnsupportedError$(string$.Cannotff));
+      }
+      t3 = $.$get$_Uri__isWindowsCached();
+      if (t3)
+        t1 = A._Uri__toWindowsFilePath(_this);
+      else {
+        if (_this._hostStart < _this._portStart)
+          A.throwExpression(A.UnsupportedError$(string$.Cannotn));
+        t1 = B.JSString_methods.substring$2(t2, _this._pathStart, t1);
+      }
+      return t1;
+    },
+    get$hashCode(_) {
+      var t1 = this._hashCodeCache;
+      return t1 == null ? this._hashCodeCache = B.JSString_methods.get$hashCode(this._uri) : t1;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      if (this === other)
+        return true;
+      return type$.Uri._is(other) && this._uri === other.toString$0(0);
+    },
+    _toNonSimple$0() {
+      var _this = this, _null = null,
+        t1 = _this.get$scheme(),
+        t2 = _this.get$userInfo(),
+        t3 = _this._hostStart > 0 ? _this.get$host() : _null,
+        t4 = _this.get$hasPort() ? _this.get$port(0) : _null,
+        t5 = _this._uri,
+        t6 = _this._queryStart,
+        t7 = B.JSString_methods.substring$2(t5, _this._pathStart, t6),
+        t8 = _this._fragmentStart;
+      t6 = t6 < t8 ? _this.get$query() : _null;
+      return A._Uri$_internal(t1, t2, t3, t4, t7, t6, t8 < t5.length ? _this.get$fragment() : _null);
+    },
+    toString$0(_) {
+      return this._uri;
+    },
+    $isUri: 1,
+    $is_PlatformUri: 1
+  };
+  A._DataUri.prototype = {};
+  A.Expando.prototype = {
+    $indexSet(_, object, value) {
+      if (object instanceof A._Record)
+        A.Expando__badExpandoKey(object);
+      this._jsWeakMap.set(object, value);
+    },
+    toString$0(_) {
+      return "Expando:null";
+    }
+  };
+  A.jsify__convert.prototype = {
+    call$1(o) {
+      var t1, convertedMap, key, convertedList;
+      if (A._noJsifyRequired(o))
+        return o;
+      t1 = this._convertedObjects;
+      if (t1.containsKey$1(o))
+        return t1.$index(0, o);
+      if (type$.Map_of_nullable_Object_and_nullable_Object._is(o)) {
+        convertedMap = {};
+        t1.$indexSet(0, o, convertedMap);
+        for (t1 = J.get$iterator$ax(o.get$keys(o)); t1.moveNext$0();) {
+          key = t1.get$current(t1);
+          convertedMap[key] = this.call$1(o.$index(0, key));
+        }
+        return convertedMap;
+      } else if (type$.Iterable_nullable_Object._is(o)) {
+        convertedList = [];
+        t1.$indexSet(0, o, convertedList);
+        B.JSArray_methods.addAll$1(convertedList, J.map$1$1$ax(o, this, type$.dynamic));
+        return convertedList;
+      } else
+        return o;
+    },
+    $signature: 343
+  };
+  A.promiseToFuture_closure1.prototype = {
+    call$1(r) {
+      return this.completer.complete$1(r);
+    },
+    $signature: 72
+  };
+  A.promiseToFuture_closure2.prototype = {
+    call$1(e) {
+      if (e == null)
+        return this.completer.completeError$1(new A.NullRejectionException(e === undefined));
+      return this.completer.completeError$1(e);
+    },
+    $signature: 72
+  };
+  A.NullRejectionException.prototype = {
+    toString$0(_) {
+      return "Promise was rejected with a value of `" + (this.isUndefined ? "undefined" : "null") + "`.";
+    },
+    $isException: 1
+  };
+  A._JSRandom.prototype = {
+    nextInt$1(max) {
+      if (max <= 0 || max > 4294967296)
+        throw A.wrapException(A.RangeError$("max must be in range 0 < max \u2264 2^32, was " + max));
+      return Math.random() * max >>> 0;
+    },
+    nextDouble$0() {
+      return Math.random();
+    }
+  };
+  A.ArgParser.prototype = {
+    addFlag$6$abbr$defaultsTo$help$hide$negatable($name, abbr, defaultsTo, help, hide, negatable) {
+      var _null = null;
+      this._addOption$12$aliases$hide$negatable($name, abbr, help, _null, _null, _null, defaultsTo, _null, B.OptionType_I6i, B.List_empty, hide, negatable);
+    },
+    addFlag$2$hide($name, hide) {
+      return this.addFlag$6$abbr$defaultsTo$help$hide$negatable($name, null, false, null, hide, true);
+    },
+    addFlag$2$help($name, help) {
+      return this.addFlag$6$abbr$defaultsTo$help$hide$negatable($name, null, false, help, false, true);
+    },
+    addFlag$3$defaultsTo$help($name, defaultsTo, help) {
+      return this.addFlag$6$abbr$defaultsTo$help$hide$negatable($name, null, defaultsTo, help, false, true);
+    },
+    addFlag$3$help$negatable($name, help, negatable) {
+      return this.addFlag$6$abbr$defaultsTo$help$hide$negatable($name, null, false, help, false, negatable);
+    },
+    addFlag$3$abbr$help($name, abbr, help) {
+      return this.addFlag$6$abbr$defaultsTo$help$hide$negatable($name, abbr, false, help, false, true);
+    },
+    addFlag$4$abbr$help$negatable($name, abbr, help, negatable) {
+      return this.addFlag$6$abbr$defaultsTo$help$hide$negatable($name, abbr, false, help, false, negatable);
+    },
+    addOption$7$abbr$allowed$defaultsTo$help$hide$valueHelp($name, abbr, allowed, defaultsTo, help, hide, valueHelp) {
+      this._addOption$12$aliases$hide$mandatory($name, abbr, help, valueHelp, allowed, null, defaultsTo, null, B.OptionType_tew, B.List_empty, hide, false);
+    },
+    addOption$2$hide($name, hide) {
+      var _null = null;
+      return this.addOption$7$abbr$allowed$defaultsTo$help$hide$valueHelp($name, _null, _null, _null, _null, hide, _null);
+    },
+    addOption$6$abbr$allowed$defaultsTo$help$valueHelp($name, abbr, allowed, defaultsTo, help, valueHelp) {
+      return this.addOption$7$abbr$allowed$defaultsTo$help$hide$valueHelp($name, abbr, allowed, defaultsTo, help, false, valueHelp);
+    },
+    addOption$4$allowed$defaultsTo$help($name, allowed, defaultsTo, help) {
+      return this.addOption$7$abbr$allowed$defaultsTo$help$hide$valueHelp($name, null, allowed, defaultsTo, help, false, null);
+    },
+    addMultiOption$7$abbr$allowed$allowedHelp$help$splitCommas$valueHelp($name, abbr, allowed, allowedHelp, help, splitCommas, valueHelp) {
+      var t1 = A._setArrayType([], type$.JSArray_String);
+      this._addOption$12$aliases$hide$splitCommas($name, abbr, help, valueHelp, allowed, allowedHelp, t1, null, B.OptionType_yPm, B.List_empty, false, splitCommas);
+    },
+    addMultiOption$5$abbr$help$splitCommas$valueHelp($name, abbr, help, splitCommas, valueHelp) {
+      return this.addMultiOption$7$abbr$allowed$allowedHelp$help$splitCommas$valueHelp($name, abbr, null, null, help, splitCommas, valueHelp);
+    },
+    addMultiOption$6$abbr$allowed$allowedHelp$help$valueHelp($name, abbr, allowed, allowedHelp, help, valueHelp) {
+      return this.addMultiOption$7$abbr$allowed$allowedHelp$help$splitCommas$valueHelp($name, abbr, allowed, allowedHelp, help, true, valueHelp);
+    },
+    addMultiOption$2$help($name, help) {
+      var _null = null;
+      return this.addMultiOption$7$abbr$allowed$allowedHelp$help$splitCommas$valueHelp($name, _null, _null, _null, help, true, _null);
+    },
+    _addOption$14$aliases$hide$mandatory$negatable$splitCommas($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, mandatory, negatable, splitCommas) {
+      var existing, t2, t3, option, _i, _this = this, _null = null,
+        t1 = A._setArrayType([$name], type$.JSArray_String);
+      B.JSArray_methods.addAll$1(t1, aliases);
+      if (B.JSArray_methods.any$1(t1, new A.ArgParser__addOption_closure(_this)))
+        throw A.wrapException(A.ArgumentError$('Duplicate option or alias "' + $name + '".', _null));
+      t1 = abbr != null;
+      if (t1) {
+        existing = _this.findByAbbreviation$1(abbr);
+        if (existing != null)
+          throw A.wrapException(A.ArgumentError$('Abbreviation "' + abbr + '" is already used by "' + existing.name + '".', _null));
+      }
+      t2 = allowed == null ? _null : A.List_List$unmodifiable(allowed, type$.String);
+      if (allowedHelp == null)
+        t3 = _null;
+      else {
+        t3 = type$.String;
+        t3 = A.ConstantMap_ConstantMap$from(allowedHelp, t3, t3);
+      }
+      option = new A.Option($name, abbr, help, valueHelp, t2, t3, defaultsTo, negatable, callback, type, splitCommas == null ? type === B.OptionType_yPm : splitCommas, false, hide);
+      if ($name.length === 0)
+        A.throwExpression(A.ArgumentError$("Name cannot be empty.", _null));
+      else if (B.JSString_methods.startsWith$1($name, "-"))
+        A.throwExpression(A.ArgumentError$("Name " + $name + ' cannot start with "-".', _null));
+      t2 = $.$get$Option__invalidChars()._nativeRegExp;
+      if (t2.test($name))
+        A.throwExpression(A.ArgumentError$('Name "' + $name + '" contains invalid characters.', _null));
+      if (t1) {
+        if (abbr.length !== 1)
+          A.throwExpression(A.ArgumentError$("Abbreviation must be null or have length 1.", _null));
+        else if (abbr === "-")
+          A.throwExpression(A.ArgumentError$('Abbreviation cannot be "-".', _null));
+        if (t2.test(abbr))
+          A.throwExpression(A.ArgumentError$("Abbreviation is an invalid character.", _null));
+      }
+      _this._arg_parser$_options.$indexSet(0, $name, option);
+      _this._optionsAndSeparators.push(option);
+      for (t1 = _this._aliases, _i = 0; false; ++_i)
+        t1.$indexSet(0, aliases[_i], $name);
+    },
+    _addOption$12$aliases$hide$splitCommas($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, splitCommas) {
+      return this._addOption$14$aliases$hide$mandatory$negatable$splitCommas($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, false, false, splitCommas);
+    },
+    _addOption$12$aliases$hide$mandatory($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, mandatory) {
+      return this._addOption$14$aliases$hide$mandatory$negatable$splitCommas($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, mandatory, false, null);
+    },
+    _addOption$12$aliases$hide$negatable($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, negatable) {
+      return this._addOption$14$aliases$hide$mandatory$negatable$splitCommas($name, abbr, help, valueHelp, allowed, allowedHelp, defaultsTo, callback, type, aliases, hide, false, negatable, null);
+    },
+    findByAbbreviation$1(abbr) {
+      var t1, t2;
+      for (t1 = this.options._map, t1 = t1.get$values(t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        if (t2.abbr === abbr)
+          return t2;
+      }
+      return null;
+    },
+    findByNameOrAlias$1($name) {
+      var t1 = this._aliases.$index(0, $name);
+      if (t1 == null)
+        t1 = $name;
+      return this.options._map.$index(0, t1);
+    }
+  };
+  A.ArgParser__addOption_closure.prototype = {
+    call$1($name) {
+      return this.$this.findByNameOrAlias$1($name) != null;
+    },
+    $signature: 4
+  };
+  A.ArgParserException.prototype = {};
+  A.ArgResults.prototype = {
+    $index(_, $name) {
+      var t1 = this._parser.options._map;
+      if (!t1.containsKey$1($name))
+        throw A.wrapException(A.ArgumentError$('Could not find an option named "' + $name + '".', null));
+      t1 = t1.$index(0, $name);
+      t1.toString;
+      return t1.valueOrDefault$1(this._parsed.$index(0, $name));
+    },
+    wasParsed$1($name) {
+      if (!this._parser.options._map.containsKey$1($name))
+        throw A.wrapException(A.ArgumentError$('Could not find an option named "' + $name + '".', null));
+      return this._parsed.containsKey$1($name);
+    }
+  };
+  A.Option.prototype = {
+    valueOrDefault$1(value) {
+      var t1;
+      if (value != null)
+        return value;
+      if (this.type === B.OptionType_yPm) {
+        t1 = this.defaultsTo;
+        return t1 == null ? A._setArrayType([], type$.JSArray_String) : t1;
+      }
+      return this.defaultsTo;
+    }
+  };
+  A.OptionType.prototype = {};
+  A.Parser0.prototype = {
+    parse$0() {
+      var commandResults, commandName, commandParser, error, t1, t3, t4, t5, t6, t7, t8, command, exception, _this = this,
+        t2 = _this._args;
+      t2.toList$0(0);
+      commandResults = null;
+      for (t3 = _this._parser$_rest, t4 = _this._grammar, t5 = t4.commands, t6 = t2.$ti._precomputed1; !t2.get$isEmpty(0);) {
+        t7 = t2._head;
+        if (t7 === t2._tail)
+          A.throwExpression(A.IterableElementError_noElement());
+        t7 = t2._table[t7];
+        t8 = t7 == null;
+        if ((t8 ? t6._as(t7) : t7) === "--") {
+          t2.removeFirst$0();
+          break;
+        }
+        if (t8)
+          t7 = t6._as(t7);
+        command = t5._map.$index(0, t7);
+        if (command != null) {
+          if (t3.length !== 0)
+            A.throwExpression(A.ArgParserException$("Cannot specify arguments before a command.", null));
+          commandName = t2.removeFirst$0();
+          t5 = type$.JSArray_String;
+          t6 = A._setArrayType([], t5);
+          B.JSArray_methods.addAll$1(t6, t3);
+          commandParser = new A.Parser0(commandName, _this, command, t2, t6, A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.dynamic));
+          try {
+            commandResults = commandParser.parse$0();
+          } catch (exception) {
+            t2 = A.unwrapException(exception);
+            if (t2 instanceof A.ArgParserException) {
+              error = t2;
+              t2 = error.message;
+              t1 = A._setArrayType([commandName], t5);
+              J.addAll$1$ax(t1, error.commands);
+              throw A.wrapException(A.ArgParserException$(t2, t1));
+            } else
+              throw exception;
+          }
+          B.JSArray_methods.clear$0(t3);
+          break;
+        }
+        if (_this._parseSoloOption$0())
+          continue;
+        if (_this._parseAbbreviation$1(_this))
+          continue;
+        if (_this._parseLongOption$0())
+          continue;
+        t3.push(t2.removeFirst$0());
+      }
+      t4.options._map.forEach$1(0, new A.Parser_parse_closure(_this));
+      B.JSArray_methods.addAll$1(t3, t2);
+      t2.clear$0(0);
+      return new A.ArgResults(t4, _this._results, _this._commandName, new A.UnmodifiableListView(t3, type$.UnmodifiableListView_String));
+    },
+    _readNextArgAsValue$1(option) {
+      var t1 = this._args;
+      if (t1.get$isEmpty(0))
+        A.throwExpression(A.ArgParserException$('Missing argument for "' + option.name + '".', null));
+      this._setOption$3(this._results, option, t1.get$first(0));
+      t1.removeFirst$0();
+    },
+    _parseSoloOption$0() {
+      var opt,
+        t1 = this._args;
+      if (t1.get$first(0).length !== 2)
+        return false;
+      if (!B.JSString_methods.startsWith$1(t1.get$first(0), "-"))
+        return false;
+      opt = t1.get$first(0)[1];
+      if (!A._isLetterOrDigit(opt.charCodeAt(0)))
+        return false;
+      this._handleSoloOption$1(opt);
+      return true;
+    },
+    _handleSoloOption$1(opt) {
+      var t1, _this = this,
+        option = _this._grammar.findByAbbreviation$1(opt);
+      if (option == null) {
+        t1 = _this._parser$_parent;
+        if (t1 == null)
+          A.throwExpression(A.ArgParserException$('Could not find an option or flag "-' + opt + '".', null));
+        t1._handleSoloOption$1(opt);
+        return true;
+      }
+      _this._args.removeFirst$0();
+      if (option.type === B.OptionType_I6i)
+        _this._results.$indexSet(0, option.name, true);
+      else
+        _this._readNextArgAsValue$1(option);
+      return true;
+    },
+    _parseAbbreviation$1(innermostCommand) {
+      var t2, index, t3, t4, lettersAndDigits, rest,
+        t1 = this._args;
+      if (t1.get$first(0).length < 2)
+        return false;
+      if (!B.JSString_methods.startsWith$1(t1.get$first(0), "-"))
+        return false;
+      t2 = t1.$ti._precomputed1;
+      index = 1;
+      while (true) {
+        t3 = t1._head;
+        if (t3 === t1._tail)
+          A.throwExpression(A.IterableElementError_noElement());
+        t3 = t1._table[t3];
+        t4 = t3 == null;
+        if (index < (t4 ? t2._as(t3) : t3).length) {
+          t3 = (t4 ? t2._as(t3) : t3).charCodeAt(index);
+          if (!(t3 >= 65 && t3 <= 90))
+            if (!(t3 >= 97 && t3 <= 122))
+              t3 = t3 >= 48 && t3 <= 57;
+            else
+              t3 = true;
+          else
+            t3 = true;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        ++index;
+      }
+      if (index === 1)
+        return false;
+      lettersAndDigits = B.JSString_methods.substring$2(t1.get$first(0), 1, index);
+      rest = B.JSString_methods.substring$1(t1.get$first(0), index);
+      if (B.JSString_methods.contains$1(rest, "\n") || B.JSString_methods.contains$1(rest, "\r"))
+        return false;
+      this._handleAbbreviation$3(lettersAndDigits, rest, innermostCommand);
+      return true;
+    },
+    _handleAbbreviation$3(lettersAndDigits, rest, innermostCommand) {
+      var t1, i, i0, _this = this,
+        c = B.JSString_methods.substring$2(lettersAndDigits, 0, 1),
+        first = _this._grammar.findByAbbreviation$1(c);
+      if (first == null) {
+        t1 = _this._parser$_parent;
+        if (t1 == null)
+          A.throwExpression(A.ArgParserException$(string$.Could_ + c + '".', null));
+        t1._handleAbbreviation$3(lettersAndDigits, rest, innermostCommand);
+        return true;
+      } else if (first.type !== B.OptionType_I6i)
+        _this._setOption$3(_this._results, first, B.JSString_methods.substring$1(lettersAndDigits, 1) + rest);
+      else {
+        t1 = B.JSString_methods.substring$1(lettersAndDigits, 1);
+        if (rest !== "")
+          A.throwExpression(A.ArgParserException$('Option "-' + c + '" is a flag and cannot handle value "' + t1 + rest + '".', null));
+        for (t1 = lettersAndDigits.length, i = 0; i < t1; i = i0) {
+          i0 = i + 1;
+          innermostCommand._parseShortFlag$1(B.JSString_methods.substring$2(lettersAndDigits, i, i0));
+        }
+      }
+      _this._args.removeFirst$0();
+      return true;
+    },
+    _parseShortFlag$1(c) {
+      var t1,
+        option = this._grammar.findByAbbreviation$1(c);
+      if (option == null) {
+        t1 = this._parser$_parent;
+        if (t1 == null)
+          A.throwExpression(A.ArgParserException$(string$.Could_ + c + '".', null));
+        t1._parseShortFlag$1(c);
+        return;
+      }
+      if (option.type !== B.OptionType_I6i)
+        A.throwExpression(A.ArgParserException$('Option "-' + c + '" must be a flag to be in a collapsed "-".', null));
+      this._results.$indexSet(0, option.name, true);
+    },
+    _parseLongOption$0() {
+      var index, t2, $name, t3, i, t4, t5, value,
+        t1 = this._args;
+      if (!B.JSString_methods.startsWith$1(t1.get$first(0), "--"))
+        return false;
+      index = B.JSString_methods.indexOf$1(t1.get$first(0), "=");
+      t2 = index === -1;
+      $name = t2 ? B.JSString_methods.substring$1(t1.get$first(0), 2) : B.JSString_methods.substring$2(t1.get$first(0), 2, index);
+      for (t3 = $name.length, i = 0; i !== t3; ++i) {
+        t4 = $name.charCodeAt(i);
+        if (!(t4 >= 65 && t4 <= 90))
+          if (!(t4 >= 97 && t4 <= 122))
+            t5 = t4 >= 48 && t4 <= 57;
+          else
+            t5 = true;
+        else
+          t5 = true;
+        if (!(t5 || t4 === 45 || t4 === 95))
+          return false;
+      }
+      value = t2 ? null : B.JSString_methods.substring$1(t1.get$first(0), index + 1);
+      if (value != null)
+        t1 = B.JSString_methods.contains$1(value, "\n") || B.JSString_methods.contains$1(value, "\r");
+      else
+        t1 = false;
+      if (t1)
+        return false;
+      this._handleLongOption$2($name, value);
+      return true;
+    },
+    _handleLongOption$2($name, value) {
+      var _this = this, _null = null,
+        _s32_ = 'Could not find an option named "',
+        t1 = _this._grammar,
+        option = t1.findByNameOrAlias$1($name);
+      if (option != null) {
+        _this._args.removeFirst$0();
+        if (option.type === B.OptionType_I6i) {
+          if (value != null)
+            A.throwExpression(A.ArgParserException$('Flag option "' + $name + '" should not be given a value.', _null));
+          _this._results.$indexSet(0, option.name, true);
+        } else if (value != null)
+          _this._setOption$3(_this._results, option, value);
+        else
+          _this._readNextArgAsValue$1(option);
+      } else if (B.JSString_methods.startsWith$1($name, "no-")) {
+        option = t1.findByNameOrAlias$1(B.JSString_methods.substring$1($name, 3));
+        if (option == null) {
+          t1 = _this._parser$_parent;
+          if (t1 == null)
+            A.throwExpression(A.ArgParserException$(_s32_ + $name + '".', _null));
+          t1._handleLongOption$2($name, value);
+          return true;
+        }
+        _this._args.removeFirst$0();
+        if (option.type !== B.OptionType_I6i)
+          A.throwExpression(A.ArgParserException$('Cannot negate non-flag option "' + $name + '".', _null));
+        if (!option.negatable)
+          A.throwExpression(A.ArgParserException$('Cannot negate option "' + $name + '".', _null));
+        _this._results.$indexSet(0, option.name, false);
+      } else {
+        t1 = _this._parser$_parent;
+        if (t1 == null)
+          A.throwExpression(A.ArgParserException$(_s32_ + $name + '".', _null));
+        t1._handleLongOption$2($name, value);
+        return true;
+      }
+      return true;
+    },
+    _setOption$3(results, option, value) {
+      var list, t1, t2, t3, _i, element;
+      if (option.type !== B.OptionType_yPm) {
+        this._validateAllowed$2(option, value);
+        results.$indexSet(0, option.name, value);
+        return;
+      }
+      list = type$.List_dynamic._as(results.putIfAbsent$2(option.name, new A.Parser__setOption_closure()));
+      if (option.splitCommas)
+        for (t1 = value.split(","), t2 = t1.length, t3 = J.getInterceptor$ax(list), _i = 0; _i < t2; ++_i) {
+          element = t1[_i];
+          this._validateAllowed$2(option, element);
+          t3.add$1(list, element);
+        }
+      else {
+        this._validateAllowed$2(option, value);
+        J.add$1$ax(list, value);
+      }
+    },
+    _validateAllowed$2(option, value) {
+      var t1 = option.allowed;
+      if (t1 == null)
+        return;
+      if (!B.JSArray_methods.contains$1(t1, value))
+        A.throwExpression(A.ArgParserException$('"' + value + '" is not an allowed value for option "' + option.name + '".', null));
+    }
+  };
+  A.Parser_parse_closure.prototype = {
+    call$2($name, option) {
+      var parsedOption = this.$this._results.$index(0, $name),
+        callback = option.callback;
+      if (callback == null)
+        return;
+      callback.call$1(option.valueOrDefault$1(parsedOption));
+    },
+    $signature: 391
+  };
+  A.Parser__setOption_closure.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_String);
+    },
+    $signature: 126
+  };
+  A._Usage.prototype = {
+    get$_columnWidths() {
+      var result, _this = this,
+        value = _this.___Usage__columnWidths_FI;
+      if (value === $) {
+        result = _this._calculateColumnWidths$0();
+        _this.___Usage__columnWidths_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.___Usage__columnWidths_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    generate$0() {
+      var t1, t2, t3, t4, _i, optionOrSeparator, t5, _this = this;
+      for (t1 = _this._usage$_optionsAndSeparators, t2 = t1.length, t3 = type$.Option, t4 = _this._usage$_buffer, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        optionOrSeparator = t1[_i];
+        if (typeof optionOrSeparator == "string") {
+          t5 = t4._contents;
+          t4._contents = (t5.length !== 0 ? t4._contents = t5 + "\n\n" : t5) + optionOrSeparator;
+          _this._newlinesNeeded = 1;
+          continue;
+        }
+        t3._as(optionOrSeparator);
+        if (optionOrSeparator.hide)
+          continue;
+        _this._writeOption$1(optionOrSeparator);
+      }
+      t1 = t4._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _writeOption$1(option) {
+      var allowedNames, t2, t3, t4, _i, $name, t5, _this = this,
+        t1 = option.abbr;
+      _this._write$2(0, t1 == null ? "" : "-" + t1 + ", ");
+      t1 = _this._longOption$1(option);
+      _this._write$2(1, t1);
+      t1 = option.help;
+      if (t1 != null)
+        _this._write$2(2, t1);
+      t1 = option.allowedHelp;
+      if (t1 != null) {
+        allowedNames = J.toList$0$ax(t1.get$keys(t1));
+        B.JSArray_methods.sort$0(allowedNames);
+        _this._newline$0();
+        for (t2 = allowedNames.length, t3 = option.defaultsTo, t4 = type$.List_dynamic._is(t3), _i = 0; _i < allowedNames.length; allowedNames.length === t2 || (0, A.throwConcurrentModificationError)(allowedNames), ++_i) {
+          $name = allowedNames[_i];
+          t5 = (t4 ? B.JSArray_methods.contains$1(t3, $name) : t3 === $name) ? " (default)" : "";
+          _this._write$2(1, "      [" + $name + "]" + t5);
+          t5 = t1.$index(0, $name);
+          t5.toString;
+          _this._write$2(2, t5);
+        }
+        _this._newline$0();
+      } else if (option.allowed != null)
+        _this._write$2(2, _this._buildAllowedList$1(option));
+      else {
+        t1 = option.type;
+        if (t1 === B.OptionType_I6i) {
+          if (option.defaultsTo === true)
+            _this._write$2(2, "(defaults to on)");
+        } else if (t1 === B.OptionType_yPm) {
+          t1 = option.defaultsTo;
+          if (t1 != null && type$.Iterable_dynamic._as(t1).length !== 0) {
+            type$.List_dynamic._as(t1);
+            _this._write$2(2, "(defaults to " + new A.MappedListIterable(t1, new A._Usage__writeOption_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$1(0, ", ") + ")");
+          }
+        } else {
+          t1 = option.defaultsTo;
+          if (t1 != null)
+            _this._write$2(2, '(defaults to "' + A.S(t1) + '")');
+        }
+      }
+    },
+    _longOption$1(option) {
+      var t1 = option.name,
+        result = option.negatable ? "--[no-]" + t1 : "--" + t1;
+      t1 = option.valueHelp;
+      return t1 != null ? result + ("=<" + t1 + ">") : result;
+    },
+    _calculateColumnWidths$0() {
+      var t1, t2, t3, abbr, title, _i, option, t4, t5, t6, t7, t8;
+      for (t1 = this._usage$_optionsAndSeparators, t2 = t1.length, t3 = type$.List_dynamic, abbr = 0, title = 0, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        option = t1[_i];
+        if (!(option instanceof A.Option))
+          continue;
+        if (option.hide)
+          continue;
+        t4 = option.abbr;
+        abbr = Math.max(abbr, (t4 == null ? "" : "-" + t4 + ", ").length);
+        t4 = this._longOption$1(option);
+        title = Math.max(title, t4.length);
+        t4 = option.allowedHelp;
+        if (t4 != null)
+          for (t4 = J.get$iterator$ax(t4.get$keys(t4)), t5 = option.defaultsTo, t6 = t3._is(t5); t4.moveNext$0();) {
+            t7 = t4.get$current(t4);
+            t8 = (t6 ? B.JSArray_methods.contains$1(t5, t7) : t5 === t7) ? " (default)" : "";
+            title = Math.max(title, ("      [" + t7 + "]" + t8).length);
+          }
+      }
+      return A._setArrayType([abbr, title + 4], type$.JSArray_int);
+    },
+    _newline$0() {
+      ++this._newlinesNeeded;
+      this._currentColumn = 0;
+    },
+    _write$2(column, text) {
+      var t1, _i,
+        lines = A._setArrayType(text.split("\n"), type$.JSArray_String);
+      this.get$_columnWidths();
+      while (true) {
+        if (!(lines.length !== 0 && J.trim$0$s(B.JSArray_methods.get$first(lines)) === ""))
+          break;
+        B.JSArray_methods.removeAt$1(lines, 0);
+      }
+      while (true) {
+        if (!(lines.length !== 0 && J.trim$0$s(B.JSArray_methods.get$last(lines)) === ""))
+          break;
+        lines.pop();
+      }
+      for (t1 = lines.length, _i = 0; _i < lines.length; lines.length === t1 || (0, A.throwConcurrentModificationError)(lines), ++_i)
+        this._writeLine$2(column, lines[_i]);
+    },
+    _writeLine$2(column, text) {
+      var t1, t2, _this = this;
+      for (t1 = _this._usage$_buffer; t2 = _this._newlinesNeeded, t2 > 0;) {
+        t1._contents += "\n";
+        _this._newlinesNeeded = t2 - 1;
+      }
+      for (; t2 = _this._currentColumn, t2 !== column;) {
+        if (t2 < 2) {
+          t2 = B.JSString_methods.$mul(" ", _this.get$_columnWidths()[_this._currentColumn]);
+          t1._contents += t2;
+        } else
+          t1._contents += "\n";
+        _this._currentColumn = (_this._currentColumn + 1) % 3;
+      }
+      _this.get$_columnWidths();
+      if (column < 2) {
+        t2 = B.JSString_methods.padRight$1(text, _this.get$_columnWidths()[column]);
+        t1._contents += t2;
+      } else
+        t1._contents += text;
+      _this._currentColumn = (_this._currentColumn + 1) % 3;
+      if (column === 2)
+        ++_this._newlinesNeeded;
+    },
+    _buildAllowedList$1(option) {
+      var t2, t3, first, _i, allowed,
+        t1 = option.defaultsTo,
+        isDefault = type$.List_dynamic._is(t1) ? B.JSArray_methods.get$contains(t1) : new A._Usage__buildAllowedList_closure(option);
+      t1 = "" + "[";
+      for (t2 = option.allowed, t3 = t2.length, first = true, _i = 0; _i < t3; ++_i, first = false) {
+        allowed = t2[_i];
+        if (!first)
+          t1 += ", ";
+        t1 += A.S(allowed);
+        if (isDefault.call$1(allowed))
+          t1 += " (default)";
+      }
+      t1 += "]";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A._Usage__writeOption_closure.prototype = {
+    call$1(value) {
+      return '"' + A.S(value) + '"';
+    },
+    $signature: 125
+  };
+  A._Usage__buildAllowedList_closure.prototype = {
+    call$1(value) {
+      return value === this.option.defaultsTo;
+    },
+    $signature: 128
+  };
+  A.FutureGroup.prototype = {
+    add$1(_, task) {
+      var t1, index, _this = this;
+      if (_this._future_group$_closed)
+        throw A.wrapException(A.StateError$("The FutureGroup is closed."));
+      t1 = _this._future_group$_values;
+      index = t1.length;
+      t1.push(null);
+      ++_this._future_group$_pending;
+      task.then$1$1(0, new A.FutureGroup_add_closure(_this, index), type$.Null).catchError$1(new A.FutureGroup_add_closure0(_this));
+    },
+    close$0(_) {
+      var t1, t2, _this = this;
+      _this._future_group$_closed = true;
+      if (_this._future_group$_pending !== 0)
+        return;
+      t1 = _this._future_group$_completer;
+      if ((t1.future._state & 30) !== 0)
+        return;
+      t2 = _this.$ti._eval$1("WhereTypeIterable<1>");
+      t1.complete$1(A.List_List$of(new A.WhereTypeIterable(_this._future_group$_values, t2), true, t2._eval$1("Iterable.E")));
+    }
+  };
+  A.FutureGroup_add_closure.prototype = {
+    call$1(value) {
+      var t3, t4,
+        t1 = this.$this,
+        t2 = t1._future_group$_completer;
+      if ((t2.future._state & 30) !== 0)
+        return null;
+      t3 = --t1._future_group$_pending;
+      t4 = t1._future_group$_values;
+      t4[this.index] = value;
+      if (t3 !== 0)
+        return null;
+      if (!t1._future_group$_closed)
+        return null;
+      t1 = t1.$ti._eval$1("WhereTypeIterable<1>");
+      t2.complete$1(A.List_List$of(new A.WhereTypeIterable(t4, t1), true, t1._eval$1("Iterable.E")));
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("Null(1)");
+    }
+  };
+  A.FutureGroup_add_closure0.prototype = {
+    call$2(error, stackTrace) {
+      var t1 = this.$this._future_group$_completer;
+      if ((t1.future._state & 30) !== 0)
+        return null;
+      t1.completeError$2(error, stackTrace);
+    },
+    $signature: 53
+  };
+  A.ErrorResult.prototype = {
+    complete$1(completer) {
+      completer.completeError$2(this.error, this.stackTrace);
+    },
+    get$hashCode(_) {
+      return (J.get$hashCode$(this.error) ^ A.Primitives_objectHashCode(this.stackTrace) ^ 492929599) >>> 0;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ErrorResult && J.$eq$(this.error, other.error) && this.stackTrace === other.stackTrace;
+    },
+    $isResult: 1
+  };
+  A.ValueResult.prototype = {
+    complete$1(completer) {
+      completer.complete$1(this.value);
+    },
+    get$hashCode(_) {
+      return (J.get$hashCode$(this.value) ^ 842997089) >>> 0;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ValueResult && J.$eq$(this.value, other.value);
+    },
+    $isResult: 1
+  };
+  A.StreamCompleter.prototype = {
+    setSourceStream$1(sourceStream) {
+      var t1 = this._stream_completer$_stream;
+      if (t1._sourceStream != null)
+        throw A.wrapException(A.StateError$("Source stream already set"));
+      t1._sourceStream = sourceStream;
+      if (t1._stream_completer$_controller != null)
+        t1._linkStreamToController$0();
+    },
+    setError$2(error, stackTrace) {
+      var t1 = this.$ti._precomputed1;
+      this.setSourceStream$1(A.Stream_Stream$fromFuture(A.Future_Future$error(error, stackTrace, t1), t1));
+    },
+    setError$1(error) {
+      return this.setError$2(error, null);
+    }
+  };
+  A._CompleterStream.prototype = {
+    listen$4$cancelOnError$onDone$onError(_, onData, cancelOnError, onDone, onError) {
+      var sourceStream, t1, _this = this, _null = null;
+      if (_this._stream_completer$_controller == null) {
+        sourceStream = _this._sourceStream;
+        if (sourceStream != null && !sourceStream.get$isBroadcast())
+          return sourceStream.listen$4$cancelOnError$onDone$onError(0, onData, cancelOnError, onDone, onError);
+        if (_this._stream_completer$_controller == null)
+          _this._stream_completer$_controller = A.StreamController_StreamController(_null, _null, _null, _null, true, _this.$ti._precomputed1);
+        if (_this._sourceStream != null)
+          _this._linkStreamToController$0();
+      }
+      t1 = _this._stream_completer$_controller;
+      t1.toString;
+      return new A._ControllerStream(t1, A._instanceType(t1)._eval$1("_ControllerStream<1>")).listen$4$cancelOnError$onDone$onError(0, onData, cancelOnError, onDone, onError);
+    },
+    listen$1(_, onData) {
+      return this.listen$4$cancelOnError$onDone$onError(0, onData, null, null, null);
+    },
+    listen$3$onDone$onError(_, onData, onDone, onError) {
+      return this.listen$4$cancelOnError$onDone$onError(0, onData, null, onDone, onError);
+    },
+    _linkStreamToController$0() {
+      var t2,
+        t1 = this._stream_completer$_controller;
+      t1.toString;
+      t2 = this._sourceStream;
+      t2.toString;
+      t1.addStream$2$cancelOnError(t2, false).whenComplete$1(t1.get$close(t1));
+    }
+  };
+  A.StreamGroup.prototype = {
+    add$1(_, stream) {
+      var t1, _this = this;
+      if (_this._closed)
+        throw A.wrapException(A.StateError$("Can't add a Stream to a closed StreamGroup."));
+      t1 = _this._stream_group$_state;
+      if (t1 === B._StreamGroupState_dormant)
+        _this._subscriptions.putIfAbsent$2(stream, new A.StreamGroup_add_closure());
+      else if (t1 === B._StreamGroupState_canceled)
+        return stream.listen$1(0, null).cancel$0();
+      else
+        _this._subscriptions.putIfAbsent$2(stream, new A.StreamGroup_add_closure0(_this, stream));
+      return null;
+    },
+    remove$1(_, stream) {
+      var t1 = this._subscriptions,
+        subscription = t1.remove$1(0, stream),
+        future = subscription == null ? null : subscription.cancel$0();
+      if (t1.__js_helper$_length === 0)
+        if (this._closed) {
+          t1 = this.__StreamGroup__controller_A;
+          t1 === $ && A.throwUnnamedLateFieldNI();
+          A.scheduleMicrotask(t1.get$close(t1));
+        }
+      return future;
+    },
+    _onListen$0() {
+      var stream, t1, t2, t3, _i, entry, exception, _this = this;
+      _this._stream_group$_state = B._StreamGroupState_listening;
+      for (t1 = _this._subscriptions, t2 = A.List_List$of(t1.get$entries(0), true, _this.$ti._eval$1("MapEntry<Stream<1>,StreamSubscription<1>?>")), t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        entry = t2[_i];
+        if (entry.value != null)
+          continue;
+        stream = entry.key;
+        try {
+          t1.$indexSet(0, stream, _this._listenToStream$1(stream));
+        } catch (exception) {
+          t1 = _this._onCancel$0();
+          if (t1 != null)
+            t1.catchError$1(new A.StreamGroup__onListen_closure());
+          throw exception;
+        }
+      }
+    },
+    _onPause$0() {
+      var t1, t2, t3;
+      this._stream_group$_state = B._StreamGroupState_paused;
+      for (t1 = this._subscriptions.get$values(0), t2 = A._instanceType(t1), t2 = t2._eval$1("@<1>")._bind$1(t2._rest[1]), t1 = new A.MappedIterator(J.get$iterator$ax(t1.__internal$_iterable), t1._f, t2._eval$1("MappedIterator<1,2>")), t2 = t2._rest[1]; t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        (t3 == null ? t2._as(t3) : t3).pause$0(0);
+      }
+    },
+    _onResume$0() {
+      var t1, t2, t3;
+      this._stream_group$_state = B._StreamGroupState_listening;
+      for (t1 = this._subscriptions.get$values(0), t2 = A._instanceType(t1), t2 = t2._eval$1("@<1>")._bind$1(t2._rest[1]), t1 = new A.MappedIterator(J.get$iterator$ax(t1.__internal$_iterable), t1._f, t2._eval$1("MappedIterator<1,2>")), t2 = t2._rest[1]; t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        (t3 == null ? t2._as(t3) : t3).resume$0(0);
+      }
+    },
+    _onCancel$0() {
+      var t1, t2, futures;
+      this._stream_group$_state = B._StreamGroupState_canceled;
+      t1 = this._subscriptions;
+      t2 = A.IterableNullableExtension_whereNotNull(t1.get$entries(0).map$1$1(0, new A.StreamGroup__onCancel_closure(this), type$.nullable_Future_void), type$.Future_void);
+      futures = A.List_List$of(t2, true, t2.$ti._eval$1("Iterable.E"));
+      t1.clear$0(0);
+      return futures.length === 0 ? null : A.Future_wait(futures, false, type$.void);
+    },
+    _listenToStream$1(stream) {
+      var subscription,
+        t1 = this.__StreamGroup__controller_A;
+      t1 === $ && A.throwUnnamedLateFieldNI();
+      subscription = stream.listen$3$onDone$onError(0, t1.get$add(t1), new A.StreamGroup__listenToStream_closure(this, stream), t1.get$addError());
+      if (this._stream_group$_state === B._StreamGroupState_paused)
+        subscription.pause$0(0);
+      return subscription;
+    }
+  };
+  A.StreamGroup_add_closure.prototype = {
+    call$0() {
+      return null;
+    },
+    $signature: 1
+  };
+  A.StreamGroup_add_closure0.prototype = {
+    call$0() {
+      return this.$this._listenToStream$1(this.stream);
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("StreamSubscription<1>()");
+    }
+  };
+  A.StreamGroup__onListen_closure.prototype = {
+    call$1(_) {
+    },
+    $signature: 54
+  };
+  A.StreamGroup__onCancel_closure.prototype = {
+    call$1(entry) {
+      var t1, exception,
+        subscription = entry.value;
+      try {
+        if (subscription != null) {
+          t1 = subscription.cancel$0();
+          return t1;
+        }
+        t1 = J.listen$1$z(entry.key, null).cancel$0();
+        return t1;
+      } catch (exception) {
+        return null;
+      }
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("Future<~>?(MapEntry<Stream<1>,StreamSubscription<1>?>)");
+    }
+  };
+  A.StreamGroup__listenToStream_closure.prototype = {
+    call$0() {
+      return this.$this.remove$1(0, this.stream);
+    },
+    $signature: 0
+  };
+  A._StreamGroupState.prototype = {
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.StreamQueue.prototype = {
+    _updateRequests$0() {
+      var t1, t2, t3, t4, _this = this;
+      for (t1 = _this._requestQueue, t2 = _this._eventQueue, t3 = t1.$ti._precomputed1; !t1.get$isEmpty(0);) {
+        t4 = t1._head;
+        if (t4 === t1._tail)
+          A.throwExpression(A.IterableElementError_noElement());
+        t4 = t1._table[t4];
+        if (t4 == null)
+          t4 = t3._as(t4);
+        if (t4.update$2(t2, _this._isDone))
+          t1.removeFirst$0();
+        else
+          return;
+      }
+      if (!_this._isDone)
+        _this._stream_queue$_subscription.pause$0(0);
+    },
+    _ensureListening$0() {
+      var t1, _this = this;
+      if (_this._isDone)
+        return;
+      t1 = _this._stream_queue$_subscription;
+      if (t1 == null)
+        _this._stream_queue$_subscription = _this._stream_queue$_source.listen$3$onDone$onError(0, new A.StreamQueue__ensureListening_closure(_this), new A.StreamQueue__ensureListening_closure0(_this), new A.StreamQueue__ensureListening_closure1(_this));
+      else
+        t1.resume$0(0);
+    },
+    _addResult$1(result) {
+      ++this._eventsReceived;
+      this._eventQueue._queue_list$_add$1(result);
+      this._updateRequests$0();
+    },
+    _addRequest$1(request) {
+      var _this = this,
+        t1 = _this._requestQueue;
+      if (t1._head === t1._tail) {
+        if (request.update$2(_this._eventQueue, _this._isDone))
+          return;
+        _this._ensureListening$0();
+      }
+      t1._add$1(request);
+    }
+  };
+  A.StreamQueue__ensureListening_closure.prototype = {
+    call$1(data) {
+      var t1 = this.$this;
+      t1._addResult$1(new A.ValueResult(data, t1.$ti._eval$1("ValueResult<1>")));
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("~(1)");
+    }
+  };
+  A.StreamQueue__ensureListening_closure1.prototype = {
+    call$2(error, stackTrace) {
+      this.$this._addResult$1(new A.ErrorResult(error, stackTrace));
+    },
+    $signature: 53
+  };
+  A.StreamQueue__ensureListening_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._stream_queue$_subscription = null;
+      t1._isDone = true;
+      t1._updateRequests$0();
+    },
+    $signature: 0
+  };
+  A._NextRequest.prototype = {
+    update$2(events, isDone) {
+      if (!events.get$isEmpty(events)) {
+        events.removeFirst$0().complete$1(this._completer);
+        return true;
+      }
+      if (isDone) {
+        this._completer.completeError$2(new A.StateError("No elements"), A.StackTrace_current());
+        return true;
+      }
+      return false;
+    },
+    $is_EventRequest: 1
+  };
+  A._isStrictMode_closure.prototype = {
+    call$0() {
+      var exception;
+      try {
+        "".name = null;
+        return false;
+      } catch (exception) {
+        return true;
+      }
+    },
+    $signature: 30
+  };
+  A.Repl.prototype = {};
+  A.alwaysValid_closure.prototype = {
+    call$1(text) {
+      return true;
+    },
+    $signature: 4
+  };
+  A.ReplAdapter.prototype = {
+    runAsync$0() {
+      var rl, runController, _this = this, t1 = {},
+        t2 = J.get$isTTY$x(self.process.stdin),
+        output = (t2 == null ? false : t2) ? self.process.stdout : null;
+      t2 = _this.repl.prompt;
+      rl = J.createInterface$1$x($.$get$readline(), {input: self.process.stdin, output: output, prompt: t2});
+      _this.rl = rl;
+      t1.statement = "";
+      t1.prompt = t2;
+      runController = A._Cell$();
+      runController.__late_helper$_value = A.StreamController_StreamController(_this.get$exit(_this), new A.ReplAdapter_runAsync_closure(t1, _this, rl, runController), null, null, false, type$.String);
+      return runController._readLocal$0().get$stream();
+    },
+    exit$0(_) {
+      var t1 = this.rl;
+      if (t1 != null)
+        J.close$0$x(t1);
+      this.rl = null;
+    }
+  };
+  A.ReplAdapter_runAsync_closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$handler = 1, $async$currentError, $async$self = this, lineController, lineQueue, line, error, stackTrace, t1, t2, t3, t4, $prompt, prompt0, t5, t6, t7, t8, line0, toZone, statement, exception, $async$exception;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 3;
+              lineController = A.StreamController_StreamController(null, null, null, null, false, type$.String);
+              t1 = lineController;
+              t2 = A.QueueList$(null, type$.Result_String);
+              t3 = A.ListQueue$(type$._EventRequest_dynamic);
+              lineQueue = new A.StreamQueue(new A._ControllerStream(t1, A._instanceType(t1)._eval$1("_ControllerStream<1>")), t2, t3, type$.StreamQueue_String);
+              t1 = $async$self.rl;
+              t2 = J.getInterceptor$x(t1);
+              t2.on$2(t1, "line", A.allowInterop(new A.ReplAdapter_runAsync__closure(lineController)));
+              t3 = $async$self._box_0, t4 = $async$self.$this.repl, $prompt = t4.continuation, prompt0 = t4.prompt, t5 = $async$self.runController;
+            case 6:
+              // for condition
+              // trivial condition
+              t6 = J.get$isTTY$x(self.process.stdin);
+              if (t6 == null ? false : t6)
+                J.write$1$x(self.process.stdout, t3.prompt);
+              t6 = lineQueue;
+              t6.toString;
+              t7 = t6.$ti;
+              t8 = new A._Future($.Zone__current, t7._eval$1("_Future<1>"));
+              t6._addRequest$1(new A._NextRequest(new A._AsyncCompleter(t8, t7._eval$1("_AsyncCompleter<1>")), t7._eval$1("_NextRequest<1>")));
+              $async$goto = 8;
+              return A._asyncAwait(t8, $async$call$0);
+            case 8:
+              // returning from await.
+              line = $async$result;
+              t6 = J.get$isTTY$x(self.process.stdin);
+              if (!(t6 == null ? false : t6)) {
+                line0 = t3.prompt + A.S(line);
+                toZone = $.printToZone;
+                if (toZone == null)
+                  A.printString(line0);
+                else
+                  toZone.call$1(line0);
+              }
+              statement = B.JSString_methods.$add(t3.statement, line);
+              t3.statement = statement;
+              if (t4.validator.call$1(statement)) {
+                t6 = t5.__late_helper$_value;
+                if (t6 === t5)
+                  A.throwExpression(A.LateError$localNI(""));
+                J.add$1$ax(t6, t3.statement);
+                t3.statement = "";
+                t3.prompt = prompt0;
+                t2.setPrompt$1(t1, prompt0);
+              } else {
+                t3.statement += "\n";
+                t3.prompt = $prompt;
+                t2.setPrompt$1(t1, $prompt);
+              }
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 7:
+              // after for
+              $async$handler = 1;
+              // goto after finally
+              $async$goto = 5;
+              break;
+            case 3:
+              // catch
+              $async$handler = 2;
+              $async$exception = $async$currentError;
+              error = A.unwrapException($async$exception);
+              stackTrace = A.getTraceFromException($async$exception);
+              t1 = $async$self.runController;
+              t1._readLocal$0().addError$2(error, stackTrace);
+              t2 = $async$self.$this.exit$0(0);
+              t2 = A._Future$value(t2, type$.void);
+              $async$goto = 9;
+              return A._asyncAwait(t2, $async$call$0);
+            case 9:
+              // returning from await.
+              J.close$0$x(t1._readLocal$0());
+              // goto after finally
+              $async$goto = 5;
+              break;
+            case 2:
+              // uncaught
+              // goto rethrow
+              $async$goto = 1;
+              break;
+            case 5:
+              // after finally
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+            case 1:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A.ReplAdapter_runAsync__closure.prototype = {
+    call$1(value) {
+      return this.lineController.add$1(0, A._asString(value));
+    },
+    $signature: 72
+  };
+  A.Stdin.prototype = {};
+  A.Stdout.prototype = {};
+  A.ReadlineModule.prototype = {};
+  A.ReadlineOptions.prototype = {};
+  A.ReadlineInterface.prototype = {};
+  A.EmptyUnmodifiableSet.prototype = {
+    get$iterator(_) {
+      return B.C_EmptyIterator;
+    },
+    get$length(_) {
+      return 0;
+    },
+    contains$1(_, element) {
+      return false;
+    },
+    toSet$0(_) {
+      return A.LinkedHashSet_LinkedHashSet$_empty(this.$ti._precomputed1);
+    },
+    $isEfficientLengthIterable: 1,
+    $isSet: 1
+  };
+  A._EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin.prototype = {};
+  A.DefaultEquality.prototype = {};
+  A.IterableEquality.prototype = {
+    equals$2(_, elements1, elements2) {
+      var it1, it2, hasNext;
+      if (elements1 === elements2)
+        return true;
+      it1 = J.get$iterator$ax(elements1);
+      it2 = J.get$iterator$ax(elements2);
+      for (; true;) {
+        hasNext = it1.moveNext$0();
+        if (hasNext !== it2.moveNext$0())
+          return false;
+        if (!hasNext)
+          return true;
+        if (!J.$eq$(it1.get$current(it1), it2.get$current(it2)))
+          return false;
+      }
+    },
+    hash$1(elements) {
+      var t1, hash, _i;
+      for (t1 = elements.length, hash = 0, _i = 0; _i < elements.length; elements.length === t1 || (0, A.throwConcurrentModificationError)(elements), ++_i) {
+        hash = hash + J.get$hashCode$(elements[_i]) & 2147483647;
+        hash = hash + (hash << 10 >>> 0) & 2147483647;
+        hash ^= hash >>> 6;
+      }
+      hash = hash + (hash << 3 >>> 0) & 2147483647;
+      hash ^= hash >>> 11;
+      return hash + (hash << 15 >>> 0) & 2147483647;
+    }
+  };
+  A.ListEquality.prototype = {
+    equals$2(_, list1, list2) {
+      var t1, $length, t2, i;
+      if (list1 == null ? list2 == null : list1 === list2)
+        return true;
+      if (list1 == null || list2 == null)
+        return false;
+      t1 = J.getInterceptor$asx(list1);
+      $length = t1.get$length(list1);
+      t2 = J.getInterceptor$asx(list2);
+      if ($length !== t2.get$length(list2))
+        return false;
+      for (i = 0; i < $length; ++i)
+        if (!J.$eq$(t1.$index(list1, i), t2.$index(list2, i)))
+          return false;
+      return true;
+    },
+    hash$1(list) {
+      var hash, i;
+      for (hash = 0, i = 0; i < list.length; ++i) {
+        hash = hash + J.get$hashCode$(list[i]) & 2147483647;
+        hash = hash + (hash << 10 >>> 0) & 2147483647;
+        hash ^= hash >>> 6;
+      }
+      hash = hash + (hash << 3 >>> 0) & 2147483647;
+      hash ^= hash >>> 11;
+      return hash + (hash << 15 >>> 0) & 2147483647;
+    }
+  };
+  A._MapEntry.prototype = {
+    get$hashCode(_) {
+      return 3 * J.get$hashCode$(this.key) + 7 * J.get$hashCode$(this.value) & 2147483647;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A._MapEntry && J.$eq$(this.key, other.key) && J.$eq$(this.value, other.value);
+    }
+  };
+  A.MapEquality.prototype = {
+    equals$2(_, map1, map2) {
+      var equalElementCounts, t1, key, entry, count;
+      if (map1 === map2)
+        return true;
+      if (map1.get$length(map1) !== map2.get$length(map2))
+        return false;
+      equalElementCounts = A.HashMap_HashMap(type$._MapEntry, type$.int);
+      for (t1 = J.get$iterator$ax(map1.get$keys(map1)); t1.moveNext$0();) {
+        key = t1.get$current(t1);
+        entry = new A._MapEntry(this, key, map1.$index(0, key));
+        count = equalElementCounts.$index(0, entry);
+        equalElementCounts.$indexSet(0, entry, (count == null ? 0 : count) + 1);
+      }
+      for (t1 = J.get$iterator$ax(map2.get$keys(map2)); t1.moveNext$0();) {
+        key = t1.get$current(t1);
+        entry = new A._MapEntry(this, key, map2.$index(0, key));
+        count = equalElementCounts.$index(0, entry);
+        if (count == null || count === 0)
+          return false;
+        equalElementCounts.$indexSet(0, entry, count - 1);
+      }
+      return true;
+    },
+    hash$1(map) {
+      var t1, t2, hash, key, keyHash, t3;
+      for (t1 = J.get$iterator$ax(map.get$keys(map)), t2 = this.$ti._rest[1], hash = 0; t1.moveNext$0();) {
+        key = t1.get$current(t1);
+        keyHash = J.get$hashCode$(key);
+        t3 = map.$index(0, key);
+        hash = hash + 3 * keyHash + 7 * J.get$hashCode$(t3 == null ? t2._as(t3) : t3) & 2147483647;
+      }
+      hash = hash + (hash << 3 >>> 0) & 2147483647;
+      hash ^= hash >>> 11;
+      return hash + (hash << 15 >>> 0) & 2147483647;
+    }
+  };
+  A.QueueList.prototype = {
+    add$1(_, element) {
+      this._queue_list$_add$1(element);
+    },
+    addAll$1(_, iterable) {
+      var addCount, $length, t1, endSpace, t2, preSpace, _this = this;
+      if (type$.List_dynamic._is(iterable)) {
+        addCount = J.get$length$asx(iterable);
+        $length = _this.get$length(0);
+        t1 = $length + addCount;
+        if (t1 >= J.get$length$asx(_this._queue_list$_table)) {
+          _this._preGrow$1(t1);
+          J.setRange$4$ax(_this._queue_list$_table, $length, t1, iterable, 0);
+          _this.set$_queue_list$_tail(_this.get$_queue_list$_tail() + addCount);
+        } else {
+          endSpace = J.get$length$asx(_this._queue_list$_table) - _this.get$_queue_list$_tail();
+          t1 = _this._queue_list$_table;
+          t2 = J.getInterceptor$ax(t1);
+          if (addCount < endSpace) {
+            t2.setRange$4(t1, _this.get$_queue_list$_tail(), _this.get$_queue_list$_tail() + addCount, iterable, 0);
+            _this.set$_queue_list$_tail(_this.get$_queue_list$_tail() + addCount);
+          } else {
+            preSpace = addCount - endSpace;
+            t2.setRange$4(t1, _this.get$_queue_list$_tail(), _this.get$_queue_list$_tail() + endSpace, iterable, 0);
+            J.setRange$4$ax(_this._queue_list$_table, 0, preSpace, iterable, endSpace);
+            _this.set$_queue_list$_tail(preSpace);
+          }
+        }
+      } else
+        for (t1 = J.get$iterator$ax(iterable); t1.moveNext$0();)
+          _this._queue_list$_add$1(t1.get$current(t1));
+    },
+    cast$1$0(_, $T) {
+      return new A._CastQueueList(this, J.cast$1$0$ax(this._queue_list$_table, $T), -1, -1, A._instanceType(this)._eval$1("@<QueueList.E>")._bind$1($T)._eval$1("_CastQueueList<1,2>"));
+    },
+    toString$0(_) {
+      return A.Iterable_iterableToFullString(this, "{", "}");
+    },
+    addFirst$1(element) {
+      var _this = this;
+      _this.set$_queue_list$_head((_this.get$_queue_list$_head() - 1 & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0);
+      J.$indexSet$ax(_this._queue_list$_table, _this.get$_queue_list$_head(), element);
+      if (_this.get$_queue_list$_head() === _this.get$_queue_list$_tail())
+        _this._queue_list$_grow$0();
+    },
+    removeFirst$0() {
+      var result, _this = this;
+      if (_this.get$_queue_list$_head() === _this.get$_queue_list$_tail())
+        throw A.wrapException(A.StateError$("No element"));
+      result = J.$index$asx(_this._queue_list$_table, _this.get$_queue_list$_head());
+      if (result == null)
+        result = A._instanceType(_this)._eval$1("QueueList.E")._as(result);
+      J.$indexSet$ax(_this._queue_list$_table, _this.get$_queue_list$_head(), null);
+      _this.set$_queue_list$_head((_this.get$_queue_list$_head() + 1 & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0);
+      return result;
+    },
+    removeLast$0(_) {
+      var result, _this = this;
+      if (_this.get$_queue_list$_head() === _this.get$_queue_list$_tail())
+        throw A.wrapException(A.StateError$("No element"));
+      _this.set$_queue_list$_tail((_this.get$_queue_list$_tail() - 1 & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0);
+      result = J.$index$asx(_this._queue_list$_table, _this.get$_queue_list$_tail());
+      if (result == null)
+        result = A._instanceType(_this)._eval$1("QueueList.E")._as(result);
+      J.$indexSet$ax(_this._queue_list$_table, _this.get$_queue_list$_tail(), null);
+      return result;
+    },
+    get$length(_) {
+      return (this.get$_queue_list$_tail() - this.get$_queue_list$_head() & J.get$length$asx(this._queue_list$_table) - 1) >>> 0;
+    },
+    set$length(_, value) {
+      var delta, newTail, t1, t2, _this = this;
+      if (value < 0)
+        throw A.wrapException(A.RangeError$("Length " + value + " may not be negative."));
+      if (value > _this.get$length(0) && !A._instanceType(_this)._eval$1("QueueList.E")._is(null))
+        throw A.wrapException(A.UnsupportedError$("The length can only be increased when the element type is nullable, but the current element type is `" + A.createRuntimeType(A._instanceType(_this)._eval$1("QueueList.E")).toString$0(0) + "`."));
+      delta = value - _this.get$length(0);
+      if (delta >= 0) {
+        if (J.get$length$asx(_this._queue_list$_table) <= value)
+          _this._preGrow$1(value);
+        _this.set$_queue_list$_tail((_this.get$_queue_list$_tail() + delta & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0);
+        return;
+      }
+      newTail = _this.get$_queue_list$_tail() + delta;
+      t1 = _this._queue_list$_table;
+      if (newTail >= 0)
+        J.fillRange$3$ax(t1, newTail, _this.get$_queue_list$_tail(), null);
+      else {
+        newTail += J.get$length$asx(t1);
+        J.fillRange$3$ax(_this._queue_list$_table, 0, _this.get$_queue_list$_tail(), null);
+        t1 = _this._queue_list$_table;
+        t2 = J.getInterceptor$asx(t1);
+        t2.fillRange$3(t1, newTail, t2.get$length(t1), null);
+      }
+      _this.set$_queue_list$_tail(newTail);
+    },
+    $index(_, index) {
+      var t1, _this = this;
+      if (index < 0 || index >= _this.get$length(0))
+        throw A.wrapException(A.RangeError$("Index " + index + " must be in the range [0.." + _this.get$length(0) + ")."));
+      t1 = J.$index$asx(_this._queue_list$_table, (_this.get$_queue_list$_head() + index & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0);
+      return t1 == null ? A._instanceType(_this)._eval$1("QueueList.E")._as(t1) : t1;
+    },
+    $indexSet(_, index, value) {
+      var _this = this;
+      if (index < 0 || index >= _this.get$length(0))
+        throw A.wrapException(A.RangeError$("Index " + index + " must be in the range [0.." + _this.get$length(0) + ")."));
+      J.$indexSet$ax(_this._queue_list$_table, (_this.get$_queue_list$_head() + index & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0, value);
+    },
+    _queue_list$_add$1(element) {
+      var _this = this;
+      J.$indexSet$ax(_this._queue_list$_table, _this.get$_queue_list$_tail(), element);
+      _this.set$_queue_list$_tail((_this.get$_queue_list$_tail() + 1 & J.get$length$asx(_this._queue_list$_table) - 1) >>> 0);
+      if (_this.get$_queue_list$_head() === _this.get$_queue_list$_tail())
+        _this._queue_list$_grow$0();
+    },
+    _queue_list$_grow$0() {
+      var _this = this,
+        newTable = A.List_List$filled(J.get$length$asx(_this._queue_list$_table) * 2, null, false, A._instanceType(_this)._eval$1("QueueList.E?")),
+        split = J.get$length$asx(_this._queue_list$_table) - _this.get$_queue_list$_head();
+      B.JSArray_methods.setRange$4(newTable, 0, split, _this._queue_list$_table, _this.get$_queue_list$_head());
+      B.JSArray_methods.setRange$4(newTable, split, split + _this.get$_queue_list$_head(), _this._queue_list$_table, 0);
+      _this.set$_queue_list$_head(0);
+      _this.set$_queue_list$_tail(J.get$length$asx(_this._queue_list$_table));
+      _this._queue_list$_table = newTable;
+    },
+    _writeToList$1(target) {
+      var $length, firstPartSize, _this = this;
+      if (_this.get$_queue_list$_head() <= _this.get$_queue_list$_tail()) {
+        $length = _this.get$_queue_list$_tail() - _this.get$_queue_list$_head();
+        B.JSArray_methods.setRange$4(target, 0, $length, _this._queue_list$_table, _this.get$_queue_list$_head());
+        return $length;
+      } else {
+        firstPartSize = J.get$length$asx(_this._queue_list$_table) - _this.get$_queue_list$_head();
+        B.JSArray_methods.setRange$4(target, 0, firstPartSize, _this._queue_list$_table, _this.get$_queue_list$_head());
+        B.JSArray_methods.setRange$4(target, firstPartSize, firstPartSize + _this.get$_queue_list$_tail(), _this._queue_list$_table, 0);
+        return _this.get$_queue_list$_tail() + firstPartSize;
+      }
+    },
+    _preGrow$1(newElementCount) {
+      var _this = this,
+        newTable = A.List_List$filled(A.QueueList__nextPowerOf2(newElementCount + B.JSInt_methods._shrOtherPositive$1(newElementCount, 1)), null, false, A._instanceType(_this)._eval$1("QueueList.E?"));
+      _this.set$_queue_list$_tail(_this._writeToList$1(newTable));
+      _this._queue_list$_table = newTable;
+      _this.set$_queue_list$_head(0);
+    },
+    $isEfficientLengthIterable: 1,
+    $isQueue: 1,
+    $isIterable: 1,
+    $isList: 1,
+    get$_queue_list$_head() {
+      return this._queue_list$_head;
+    },
+    get$_queue_list$_tail() {
+      return this._queue_list$_tail;
+    },
+    set$_queue_list$_head(val) {
+      return this._queue_list$_head = val;
+    },
+    set$_queue_list$_tail(val) {
+      return this._queue_list$_tail = val;
+    }
+  };
+  A._CastQueueList.prototype = {
+    get$_queue_list$_head() {
+      return this._queue_list$_delegate.get$_queue_list$_head();
+    },
+    set$_queue_list$_head(value) {
+      this._queue_list$_delegate.set$_queue_list$_head(value);
+    },
+    get$_queue_list$_tail() {
+      return this._queue_list$_delegate.get$_queue_list$_tail();
+    },
+    set$_queue_list$_tail(value) {
+      this._queue_list$_delegate.set$_queue_list$_tail(value);
+    }
+  };
+  A._QueueList_Object_ListMixin.prototype = {};
+  A.UnionSet.prototype = {
+    get$length(_) {
+      var t1 = this.get$_union_set$_iterable().get$length(0);
+      return t1;
+    },
+    get$iterator(_) {
+      var t1 = this.get$_union_set$_iterable();
+      return t1.get$iterator(t1);
+    },
+    get$_union_set$_iterable() {
+      var t1 = this._sets,
+        t2 = this.$ti._precomputed1,
+        t3 = A._instanceType(t1)._eval$1("@<1>")._bind$1(t2)._eval$1("ExpandIterable<1,2>");
+      t2 = A.LinkedHashSet_LinkedHashSet$_empty(t2);
+      return new A.WhereIterable(new A.ExpandIterable(t1, new A.UnionSet__iterable_closure(this), t3), t2.get$add(t2), t3._eval$1("WhereIterable<Iterable.E>"));
+    },
+    contains$1(_, element) {
+      return this._sets.any$1(0, new A.UnionSet_contains_closure(this, element));
+    },
+    toSet$0(_) {
+      var t2, t3, t4,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(this.$ti._precomputed1);
+      for (t2 = this._sets, t2 = A._LinkedHashSetIterator$(t2, t2._modifications, A._instanceType(t2)._precomputed1), t3 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t4 = t2._collection$_current;
+        t1.addAll$1(0, t4 == null ? t3._as(t4) : t4);
+      }
+      return t1;
+    }
+  };
+  A.UnionSet__iterable_closure.prototype = {
+    call$1(set) {
+      return set;
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("Set<1>(Set<1>)");
+    }
+  };
+  A.UnionSet_contains_closure.prototype = {
+    call$1(set) {
+      return set.contains$1(0, this.element);
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("bool(Set<1>)");
+    }
+  };
+  A._UnionSet_SetBase_UnmodifiableSetMixin.prototype = {};
+  A.UnmodifiableSetView0.prototype = {};
+  A.UnmodifiableSetMixin.prototype = {
+    add$1(_, value) {
+      return A.UnmodifiableSetMixin__throw();
+    },
+    addAll$1(_, elements) {
+      return A.UnmodifiableSetMixin__throw();
+    },
+    remove$1(_, value) {
+      return A.UnmodifiableSetMixin__throw();
+    }
+  };
+  A._UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin.prototype = {};
+  A._DelegatingIterableBase.prototype = {
+    any$1(_, test) {
+      return J.any$1$ax(this.get$_base(), test);
+    },
+    contains$1(_, element) {
+      return J.contains$1$asx(this.get$_base(), element);
+    },
+    elementAt$1(_, index) {
+      return J.elementAt$1$ax(this.get$_base(), index);
+    },
+    every$1(_, test) {
+      return J.every$1$ax(this.get$_base(), test);
+    },
+    get$first(_) {
+      return J.get$first$ax(this.get$_base());
+    },
+    get$isEmpty(_) {
+      return J.get$isEmpty$asx(this.get$_base());
+    },
+    get$isNotEmpty(_) {
+      return J.get$isNotEmpty$asx(this.get$_base());
+    },
+    get$iterator(_) {
+      return J.get$iterator$ax(this.get$_base());
+    },
+    get$last(_) {
+      return J.get$last$ax(this.get$_base());
+    },
+    get$length(_) {
+      return J.get$length$asx(this.get$_base());
+    },
+    map$1$1(_, f, $T) {
+      return J.map$1$1$ax(this.get$_base(), f, $T);
+    },
+    get$single(_) {
+      return J.get$single$ax(this.get$_base());
+    },
+    skip$1(_, n) {
+      return J.skip$1$ax(this.get$_base(), n);
+    },
+    take$1(_, n) {
+      return J.take$1$ax(this.get$_base(), n);
+    },
+    toList$1$growable(_, growable) {
+      return J.toList$1$growable$ax(this.get$_base(), true);
+    },
+    toList$0(_) {
+      return this.toList$1$growable(0, true);
+    },
+    toSet$0(_) {
+      return J.toSet$0$ax(this.get$_base());
+    },
+    where$1(_, test) {
+      return J.where$1$ax(this.get$_base(), test);
+    },
+    toString$0(_) {
+      return J.toString$0$(this.get$_base());
+    },
+    $isIterable: 1
+  };
+  A.DelegatingSet.prototype = {
+    add$1(_, value) {
+      return this._base.add$1(0, value);
+    },
+    addAll$1(_, elements) {
+      this._base.addAll$1(0, elements);
+    },
+    toSet$0(_) {
+      return new A.DelegatingSet(this._base.toSet$0(0), A._instanceType(this)._eval$1("DelegatingSet<1>"));
+    },
+    $isEfficientLengthIterable: 1,
+    $isSet: 1,
+    get$_base() {
+      return this._base;
+    }
+  };
+  A.MapKeySet.prototype = {
+    get$_base() {
+      var t1 = this._baseMap;
+      return t1.get$keys(t1);
+    },
+    contains$1(_, element) {
+      return this._baseMap.containsKey$1(element);
+    },
+    get$isEmpty(_) {
+      var t1 = this._baseMap;
+      return t1.get$isEmpty(t1);
+    },
+    get$isNotEmpty(_) {
+      var t1 = this._baseMap;
+      return t1.get$isNotEmpty(t1);
+    },
+    get$length(_) {
+      var t1 = this._baseMap;
+      return t1.get$length(t1);
+    },
+    toString$0(_) {
+      return A.Iterable_iterableToFullString(this, "{", "}");
+    },
+    difference$1(other) {
+      return J.where$1$ax(this.get$_base(), new A.MapKeySet_difference_closure(this, other)).toSet$0(0);
+    },
+    $isEfficientLengthIterable: 1,
+    $isSet: 1
+  };
+  A.MapKeySet_difference_closure.prototype = {
+    call$1(element) {
+      return !this.other._source.contains$1(0, element);
+    },
+    $signature() {
+      return this.$this.$ti._eval$1("bool(1)");
+    }
+  };
+  A._MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin.prototype = {};
+  A.BufferModule.prototype = {};
+  A.BufferConstants.prototype = {};
+  A.Buffer.prototype = {};
+  A.ConsoleModule.prototype = {};
+  A.Console.prototype = {};
+  A.EventEmitter.prototype = {};
+  A.FS.prototype = {};
+  A.FSConstants.prototype = {};
+  A.FSWatcher.prototype = {};
+  A.ReadStream.prototype = {};
+  A.ReadStreamOptions.prototype = {};
+  A.WriteStream.prototype = {};
+  A.WriteStreamOptions.prototype = {};
+  A.FileOptions.prototype = {};
+  A.StatOptions.prototype = {};
+  A.MkdirOptions.prototype = {};
+  A.RmdirOptions.prototype = {};
+  A.WatchOptions.prototype = {};
+  A.WatchFileOptions.prototype = {};
+  A.Stats.prototype = {};
+  A.Promise.prototype = {};
+  A.Date.prototype = {};
+  A.JsError.prototype = {};
+  A.Atomics.prototype = {};
+  A.Modules.prototype = {};
+  A.Module.prototype = {};
+  A.Net.prototype = {};
+  A.Socket.prototype = {};
+  A.NetAddress.prototype = {};
+  A.NetServer.prototype = {};
+  A.NodeJsError.prototype = {};
+  A.JsAssertionError.prototype = {};
+  A.JsRangeError.prototype = {};
+  A.JsReferenceError.prototype = {};
+  A.JsSyntaxError.prototype = {};
+  A.JsTypeError.prototype = {};
+  A.JsSystemError.prototype = {};
+  A.Process.prototype = {};
+  A.CPUUsage.prototype = {};
+  A.Release.prototype = {};
+  A.StreamModule.prototype = {};
+  A.Readable.prototype = {};
+  A.Writable.prototype = {};
+  A.Duplex.prototype = {};
+  A.Transform.prototype = {};
+  A.WritableOptions.prototype = {};
+  A.ReadableOptions.prototype = {};
+  A.Immediate.prototype = {};
+  A.Timeout.prototype = {};
+  A.TTY.prototype = {};
+  A.TTYReadStream.prototype = {};
+  A.TTYWriteStream.prototype = {};
+  A.Util.prototype = {};
+  A.promiseToFuture_closure.prototype = {
+    call$1(value) {
+      this.completer.complete$1(value);
+    },
+    $signature: 54
+  };
+  A.promiseToFuture_closure0.prototype = {
+    call$1(error) {
+      this.completer.completeError$1(error);
+    },
+    $signature: 54
+  };
+  A.futureToPromise_closure.prototype = {
+    call$2(resolve, reject) {
+      this.future.then$1$2$onError(0, new A.futureToPromise__closure(resolve, this.T), reject, type$.dynamic);
+    },
+    $signature: 608
+  };
+  A.futureToPromise__closure.prototype = {
+    call$1(result) {
+      return this.resolve.call$1(result);
+    },
+    $signature() {
+      return this.T._eval$1("@(0)");
+    }
+  };
+  A.Context.prototype = {
+    absolute$15(part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15) {
+      var t1;
+      A._validateArgList("absolute", A._setArrayType([part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15], type$.JSArray_nullable_String));
+      if (part2 == null) {
+        t1 = this.style;
+        t1 = t1.rootLength$1(part1) > 0 && !t1.isRootRelative$1(part1);
+      } else
+        t1 = false;
+      if (t1)
+        return part1;
+      t1 = this._context$_current;
+      return this.join$16(0, t1 == null ? A.current() : t1, part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15);
+    },
+    absolute$1(part1) {
+      var _null = null;
+      return this.absolute$15(part1, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    },
+    dirname$1(path) {
+      var t1, t2,
+        parsed = A.ParsedPath_ParsedPath$parse(path, this.style);
+      parsed.removeTrailingSeparators$0();
+      t1 = parsed.parts;
+      t2 = t1.length;
+      if (t2 === 0) {
+        t1 = parsed.root;
+        return t1 == null ? "." : t1;
+      }
+      if (t2 === 1) {
+        t1 = parsed.root;
+        return t1 == null ? "." : t1;
+      }
+      B.JSArray_methods.removeLast$0(t1);
+      parsed.separators.pop();
+      parsed.removeTrailingSeparators$0();
+      return parsed.toString$0(0);
+    },
+    join$16(_, part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15, part16) {
+      var parts = A._setArrayType([part1, part2, part3, part4, part5, part6, part7, part8, part9, part10, part11, part12, part13, part14, part15, part16], type$.JSArray_nullable_String);
+      A._validateArgList("join", parts);
+      return this.joinAll$1(new A.WhereTypeIterable(parts, type$.WhereTypeIterable_String));
+    },
+    join$2(_, part1, part2) {
+      var _null = null;
+      return this.join$16(0, part1, part2, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    },
+    joinAll$1(parts) {
+      var t1, t2, t3, needsSeparator, isAbsoluteAndNotRootRelative, t4, t5, parsed, path;
+      for (t1 = J.where$1$ax(parts, new A.Context_joinAll_closure()), t2 = J.get$iterator$ax(t1.__internal$_iterable), t1 = new A.WhereIterator(t2, t1._f), t3 = this.style, needsSeparator = false, isAbsoluteAndNotRootRelative = false, t4 = ""; t1.moveNext$0();) {
+        t5 = t2.get$current(t2);
+        if (t3.isRootRelative$1(t5) && isAbsoluteAndNotRootRelative) {
+          parsed = A.ParsedPath_ParsedPath$parse(t5, t3);
+          path = t4.charCodeAt(0) == 0 ? t4 : t4;
+          t4 = B.JSString_methods.substring$2(path, 0, t3.rootLength$2$withDrive(path, true));
+          parsed.root = t4;
+          if (t3.needsSeparator$1(t4))
+            parsed.separators[0] = t3.get$separator(t3);
+          t4 = "" + parsed.toString$0(0);
+        } else if (t3.rootLength$1(t5) > 0) {
+          isAbsoluteAndNotRootRelative = !t3.isRootRelative$1(t5);
+          t4 = "" + t5;
+        } else {
+          if (!(t5.length !== 0 && t3.containsSeparator$1(t5[0])))
+            if (needsSeparator)
+              t4 += t3.get$separator(t3);
+          t4 += t5;
+        }
+        needsSeparator = t3.needsSeparator$1(t5);
+      }
+      return t4.charCodeAt(0) == 0 ? t4 : t4;
+    },
+    split$1(_, path) {
+      var parsed = A.ParsedPath_ParsedPath$parse(path, this.style),
+        t1 = parsed.parts,
+        t2 = A._arrayInstanceType(t1)._eval$1("WhereIterable<1>");
+      t2 = A.List_List$of(new A.WhereIterable(t1, new A.Context_split_closure(), t2), true, t2._eval$1("Iterable.E"));
+      parsed.parts = t2;
+      t1 = parsed.root;
+      if (t1 != null)
+        B.JSArray_methods.insert$2(t2, 0, t1);
+      return parsed.parts;
+    },
+    canonicalize$1(_, path) {
+      var t1, parsed;
+      path = this.absolute$1(path);
+      t1 = this.style;
+      if (t1 !== $.$get$Style_windows() && !this._needsNormalization$1(path))
+        return path;
+      parsed = A.ParsedPath_ParsedPath$parse(path, t1);
+      parsed.normalize$1$canonicalize(true);
+      return parsed.toString$0(0);
+    },
+    normalize$1(path) {
+      var parsed;
+      if (!this._needsNormalization$1(path))
+        return path;
+      parsed = A.ParsedPath_ParsedPath$parse(path, this.style);
+      parsed.normalize$0();
+      return parsed.toString$0(0);
+    },
+    _needsNormalization$1(path) {
+      var i, start, previous, t2, t3, previousPrevious, codeUnit, t4,
+        t1 = this.style,
+        root = t1.rootLength$1(path);
+      if (root !== 0) {
+        if (t1 === $.$get$Style_windows())
+          for (i = 0; i < root; ++i)
+            if (path.charCodeAt(i) === 47)
+              return true;
+        start = root;
+        previous = 47;
+      } else {
+        start = 0;
+        previous = null;
+      }
+      for (t2 = new A.CodeUnits(path)._string, t3 = t2.length, i = start, previousPrevious = null; i < t3; ++i, previousPrevious = previous, previous = codeUnit) {
+        codeUnit = t2.charCodeAt(i);
+        if (t1.isSeparator$1(codeUnit)) {
+          if (t1 === $.$get$Style_windows() && codeUnit === 47)
+            return true;
+          if (previous != null && t1.isSeparator$1(previous))
+            return true;
+          if (previous === 46)
+            t4 = previousPrevious == null || previousPrevious === 46 || t1.isSeparator$1(previousPrevious);
+          else
+            t4 = false;
+          if (t4)
+            return true;
+        }
+      }
+      if (previous == null)
+        return true;
+      if (t1.isSeparator$1(previous))
+        return true;
+      if (previous === 46)
+        t1 = previousPrevious == null || t1.isSeparator$1(previousPrevious) || previousPrevious === 46;
+      else
+        t1 = false;
+      if (t1)
+        return true;
+      return false;
+    },
+    relative$2$from(path, from) {
+      var fromParsed, pathParsed, t2, t3, _this = this,
+        _s26_ = 'Unable to find a path to "',
+        t1 = from == null;
+      if (t1 && _this.style.rootLength$1(path) <= 0)
+        return _this.normalize$1(path);
+      if (t1) {
+        t1 = _this._context$_current;
+        from = t1 == null ? A.current() : t1;
+      } else
+        from = _this.absolute$1(from);
+      t1 = _this.style;
+      if (t1.rootLength$1(from) <= 0 && t1.rootLength$1(path) > 0)
+        return _this.normalize$1(path);
+      if (t1.rootLength$1(path) <= 0 || t1.isRootRelative$1(path))
+        path = _this.absolute$1(path);
+      if (t1.rootLength$1(path) <= 0 && t1.rootLength$1(from) > 0)
+        throw A.wrapException(A.PathException$(_s26_ + path + '" from "' + from + '".'));
+      fromParsed = A.ParsedPath_ParsedPath$parse(from, t1);
+      fromParsed.normalize$0();
+      pathParsed = A.ParsedPath_ParsedPath$parse(path, t1);
+      pathParsed.normalize$0();
+      t2 = fromParsed.parts;
+      if (t2.length !== 0 && J.$eq$(t2[0], "."))
+        return pathParsed.toString$0(0);
+      t2 = fromParsed.root;
+      t3 = pathParsed.root;
+      if (t2 != t3)
+        t2 = t2 == null || t3 == null || !t1.pathsEqual$2(t2, t3);
+      else
+        t2 = false;
+      if (t2)
+        return pathParsed.toString$0(0);
+      while (true) {
+        t2 = fromParsed.parts;
+        if (t2.length !== 0) {
+          t3 = pathParsed.parts;
+          t2 = t3.length !== 0 && t1.pathsEqual$2(t2[0], t3[0]);
+        } else
+          t2 = false;
+        if (!t2)
+          break;
+        B.JSArray_methods.removeAt$1(fromParsed.parts, 0);
+        B.JSArray_methods.removeAt$1(fromParsed.separators, 1);
+        B.JSArray_methods.removeAt$1(pathParsed.parts, 0);
+        B.JSArray_methods.removeAt$1(pathParsed.separators, 1);
+      }
+      t2 = fromParsed.parts;
+      if (t2.length !== 0 && J.$eq$(t2[0], ".."))
+        throw A.wrapException(A.PathException$(_s26_ + path + '" from "' + from + '".'));
+      t2 = type$.String;
+      B.JSArray_methods.insertAll$2(pathParsed.parts, 0, A.List_List$filled(fromParsed.parts.length, "..", false, t2));
+      t3 = pathParsed.separators;
+      t3[0] = "";
+      B.JSArray_methods.insertAll$2(t3, 1, A.List_List$filled(fromParsed.parts.length, t1.get$separator(t1), false, t2));
+      t1 = pathParsed.parts;
+      t2 = t1.length;
+      if (t2 === 0)
+        return ".";
+      if (t2 > 1 && J.$eq$(B.JSArray_methods.get$last(t1), ".")) {
+        B.JSArray_methods.removeLast$0(pathParsed.parts);
+        t1 = pathParsed.separators;
+        t1.pop();
+        t1.pop();
+        t1.push("");
+      }
+      pathParsed.root = "";
+      pathParsed.removeTrailingSeparators$0();
+      return pathParsed.toString$0(0);
+    },
+    relative$1(path) {
+      return this.relative$2$from(path, null);
+    },
+    _isWithinOrEquals$2($parent, child) {
+      var relative, t1, parentIsAbsolute, childIsAbsolute, childIsRootRelative, parentIsRootRelative, result, exception, _this = this;
+      $parent = $parent;
+      child = child;
+      t1 = _this.style;
+      parentIsAbsolute = t1.rootLength$1($parent) > 0;
+      childIsAbsolute = t1.rootLength$1(child) > 0;
+      if (parentIsAbsolute && !childIsAbsolute) {
+        child = _this.absolute$1(child);
+        if (t1.isRootRelative$1($parent))
+          $parent = _this.absolute$1($parent);
+      } else if (childIsAbsolute && !parentIsAbsolute) {
+        $parent = _this.absolute$1($parent);
+        if (t1.isRootRelative$1(child))
+          child = _this.absolute$1(child);
+      } else if (childIsAbsolute && parentIsAbsolute) {
+        childIsRootRelative = t1.isRootRelative$1(child);
+        parentIsRootRelative = t1.isRootRelative$1($parent);
+        if (childIsRootRelative && !parentIsRootRelative)
+          child = _this.absolute$1(child);
+        else if (parentIsRootRelative && !childIsRootRelative)
+          $parent = _this.absolute$1($parent);
+      }
+      result = _this._isWithinOrEqualsFast$2($parent, child);
+      if (result !== B._PathRelation_inconclusive)
+        return result;
+      relative = null;
+      try {
+        relative = _this.relative$2$from(child, $parent);
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.PathException)
+          return B._PathRelation_different;
+        else
+          throw exception;
+      }
+      if (t1.rootLength$1(relative) > 0)
+        return B._PathRelation_different;
+      if (J.$eq$(relative, "."))
+        return B._PathRelation_equal;
+      if (J.$eq$(relative, ".."))
+        return B._PathRelation_different;
+      return J.get$length$asx(relative) >= 3 && J.startsWith$1$s(relative, "..") && t1.isSeparator$1(J.codeUnitAt$1$s(relative, 2)) ? B._PathRelation_different : B._PathRelation_within;
+    },
+    _isWithinOrEqualsFast$2($parent, child) {
+      var t1, parentRootLength, childRootLength, i, t2, t3, childIndex, parentIndex, lastCodeUnit, lastParentSeparator, parentCodeUnit, childCodeUnit, parentIndex0, direction, _this = this;
+      if ($parent === ".")
+        $parent = "";
+      t1 = _this.style;
+      parentRootLength = t1.rootLength$1($parent);
+      childRootLength = t1.rootLength$1(child);
+      if (parentRootLength !== childRootLength)
+        return B._PathRelation_different;
+      for (i = 0; i < parentRootLength; ++i)
+        if (!t1.codeUnitsEqual$2($parent.charCodeAt(i), child.charCodeAt(i)))
+          return B._PathRelation_different;
+      t2 = child.length;
+      t3 = $parent.length;
+      childIndex = childRootLength;
+      parentIndex = parentRootLength;
+      lastCodeUnit = 47;
+      lastParentSeparator = null;
+      while (true) {
+        if (!(parentIndex < t3 && childIndex < t2))
+          break;
+        c$0: {
+          parentCodeUnit = $parent.charCodeAt(parentIndex);
+          childCodeUnit = child.charCodeAt(childIndex);
+          if (t1.codeUnitsEqual$2(parentCodeUnit, childCodeUnit)) {
+            if (t1.isSeparator$1(parentCodeUnit))
+              lastParentSeparator = parentIndex;
+            ++parentIndex;
+            ++childIndex;
+            lastCodeUnit = parentCodeUnit;
+            break c$0;
+          }
+          if (t1.isSeparator$1(parentCodeUnit) && t1.isSeparator$1(lastCodeUnit)) {
+            parentIndex0 = parentIndex + 1;
+            lastParentSeparator = parentIndex;
+            parentIndex = parentIndex0;
+            break c$0;
+          } else if (t1.isSeparator$1(childCodeUnit) && t1.isSeparator$1(lastCodeUnit)) {
+            ++childIndex;
+            break c$0;
+          }
+          if (parentCodeUnit === 46 && t1.isSeparator$1(lastCodeUnit)) {
+            ++parentIndex;
+            if (parentIndex === t3)
+              break;
+            parentCodeUnit = $parent.charCodeAt(parentIndex);
+            if (t1.isSeparator$1(parentCodeUnit)) {
+              parentIndex0 = parentIndex + 1;
+              lastParentSeparator = parentIndex;
+              parentIndex = parentIndex0;
+              break c$0;
+            }
+            if (parentCodeUnit === 46) {
+              ++parentIndex;
+              if (parentIndex === t3 || t1.isSeparator$1($parent.charCodeAt(parentIndex)))
+                return B._PathRelation_inconclusive;
+            }
+          }
+          if (childCodeUnit === 46 && t1.isSeparator$1(lastCodeUnit)) {
+            ++childIndex;
+            if (childIndex === t2)
+              break;
+            childCodeUnit = child.charCodeAt(childIndex);
+            if (t1.isSeparator$1(childCodeUnit)) {
+              ++childIndex;
+              break c$0;
+            }
+            if (childCodeUnit === 46) {
+              ++childIndex;
+              if (childIndex === t2 || t1.isSeparator$1(child.charCodeAt(childIndex)))
+                return B._PathRelation_inconclusive;
+            }
+          }
+          if (_this._pathDirection$2(child, childIndex) !== B._PathDirection_yLX)
+            return B._PathRelation_inconclusive;
+          if (_this._pathDirection$2($parent, parentIndex) !== B._PathDirection_yLX)
+            return B._PathRelation_inconclusive;
+          return B._PathRelation_different;
+        }
+      }
+      if (childIndex === t2) {
+        if (parentIndex === t3 || t1.isSeparator$1($parent.charCodeAt(parentIndex)))
+          lastParentSeparator = parentIndex;
+        else if (lastParentSeparator == null)
+          lastParentSeparator = Math.max(0, parentRootLength - 1);
+        direction = _this._pathDirection$2($parent, lastParentSeparator);
+        if (direction === B._PathDirection_8OV)
+          return B._PathRelation_equal;
+        return direction === B._PathDirection_3KU ? B._PathRelation_inconclusive : B._PathRelation_different;
+      }
+      direction = _this._pathDirection$2(child, childIndex);
+      if (direction === B._PathDirection_8OV)
+        return B._PathRelation_equal;
+      if (direction === B._PathDirection_3KU)
+        return B._PathRelation_inconclusive;
+      return t1.isSeparator$1(child.charCodeAt(childIndex)) || t1.isSeparator$1(lastCodeUnit) ? B._PathRelation_within : B._PathRelation_different;
+    },
+    _pathDirection$2(path, index) {
+      var t1, t2, i, depth, reachedRoot, i0, t3;
+      for (t1 = path.length, t2 = this.style, i = index, depth = 0, reachedRoot = false; i < t1;) {
+        while (true) {
+          if (!(i < t1 && t2.isSeparator$1(path.charCodeAt(i))))
+            break;
+          ++i;
+        }
+        if (i === t1)
+          break;
+        i0 = i;
+        while (true) {
+          if (!(i0 < t1 && !t2.isSeparator$1(path.charCodeAt(i0))))
+            break;
+          ++i0;
+        }
+        t3 = i0 - i;
+        if (!(t3 === 1 && path.charCodeAt(i) === 46))
+          if (t3 === 2 && path.charCodeAt(i) === 46 && path.charCodeAt(i + 1) === 46) {
+            --depth;
+            if (depth < 0)
+              break;
+            if (depth === 0)
+              reachedRoot = true;
+          } else
+            ++depth;
+        if (i0 === t1)
+          break;
+        i = i0 + 1;
+      }
+      if (depth < 0)
+        return B._PathDirection_3KU;
+      if (depth === 0)
+        return B._PathDirection_8OV;
+      if (reachedRoot)
+        return B._PathDirection_e7w;
+      return B._PathDirection_yLX;
+    },
+    hash$1(path) {
+      var result, parsed, t1, _this = this;
+      path = _this.absolute$1(path);
+      result = _this._hashFast$1(path);
+      if (result != null)
+        return result;
+      parsed = A.ParsedPath_ParsedPath$parse(path, _this.style);
+      parsed.normalize$0();
+      t1 = _this._hashFast$1(parsed.toString$0(0));
+      t1.toString;
+      return t1;
+    },
+    _hashFast$1(path) {
+      var t1, t2, hash, beginning, wasSeparator, i, codeUnit, t3, next;
+      for (t1 = path.length, t2 = this.style, hash = 4603, beginning = true, wasSeparator = true, i = 0; i < t1; ++i) {
+        codeUnit = t2.canonicalizeCodeUnit$1(path.charCodeAt(i));
+        if (t2.isSeparator$1(codeUnit)) {
+          wasSeparator = true;
+          continue;
+        }
+        if (codeUnit === 46 && wasSeparator) {
+          t3 = i + 1;
+          if (t3 === t1)
+            break;
+          next = path.charCodeAt(t3);
+          if (t2.isSeparator$1(next))
+            continue;
+          if (!beginning)
+            if (next === 46) {
+              t3 = i + 2;
+              t3 = t3 === t1 || t2.isSeparator$1(path.charCodeAt(t3));
+            } else
+              t3 = false;
+          else
+            t3 = false;
+          if (t3)
+            return null;
+        }
+        hash = ((hash & 67108863) * 33 ^ codeUnit) >>> 0;
+        beginning = false;
+        wasSeparator = false;
+      }
+      return hash;
+    },
+    withoutExtension$1(path) {
+      var i,
+        parsed = A.ParsedPath_ParsedPath$parse(path, this.style);
+      for (i = parsed.parts.length - 1; i >= 0; --i)
+        if (J.get$length$asx(parsed.parts[i]) !== 0) {
+          parsed.parts[i] = parsed._splitExtension$0()[0];
+          break;
+        }
+      return parsed.toString$0(0);
+    },
+    toUri$1(path) {
+      var t2,
+        t1 = this.style;
+      if (t1.rootLength$1(path) <= 0)
+        return t1.relativePathToUri$1(path);
+      else {
+        t2 = this._context$_current;
+        return t1.absolutePathToUri$1(this.join$2(0, t2 == null ? A.current() : t2, path));
+      }
+    },
+    prettyUri$1(uri) {
+      var path, rel, _this = this,
+        typedUri = A._parseUri(uri);
+      if (typedUri.get$scheme() === "file" && _this.style === $.$get$Style_url())
+        return typedUri.toString$0(0);
+      else if (typedUri.get$scheme() !== "file" && typedUri.get$scheme() !== "" && _this.style !== $.$get$Style_url())
+        return typedUri.toString$0(0);
+      path = _this.normalize$1(_this.style.pathFromUri$1(A._parseUri(typedUri)));
+      rel = _this.relative$1(path);
+      return _this.split$1(0, rel).length > _this.split$1(0, path).length ? path : rel;
+    }
+  };
+  A.Context_joinAll_closure.prototype = {
+    call$1(part) {
+      return part !== "";
+    },
+    $signature: 4
+  };
+  A.Context_split_closure.prototype = {
+    call$1(part) {
+      return part.length !== 0;
+    },
+    $signature: 4
+  };
+  A._validateArgList_closure.prototype = {
+    call$1(arg) {
+      return arg == null ? "null" : '"' + arg + '"';
+    },
+    $signature: 626
+  };
+  A._PathDirection.prototype = {
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A._PathRelation.prototype = {
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.InternalStyle.prototype = {
+    getRoot$1(path) {
+      var $length = this.rootLength$1(path);
+      if ($length > 0)
+        return B.JSString_methods.substring$2(path, 0, $length);
+      return this.isRootRelative$1(path) ? path[0] : null;
+    },
+    relativePathToUri$1(path) {
+      var segments, _null = null,
+        t1 = path.length;
+      if (t1 === 0)
+        return A._Uri__Uri(_null, _null, _null, _null);
+      segments = A.Context_Context(this).split$1(0, path);
+      if (this.isSeparator$1(path.charCodeAt(t1 - 1)))
+        B.JSArray_methods.add$1(segments, "");
+      return A._Uri__Uri(_null, _null, segments, _null);
+    },
+    codeUnitsEqual$2(codeUnit1, codeUnit2) {
+      return codeUnit1 === codeUnit2;
+    },
+    pathsEqual$2(path1, path2) {
+      return path1 === path2;
+    },
+    canonicalizeCodeUnit$1(codeUnit) {
+      return codeUnit;
+    },
+    canonicalizePart$1(part) {
+      return part;
+    }
+  };
+  A.ParsedPath.prototype = {
+    get$basename() {
+      var _this = this,
+        t1 = type$.String,
+        copy = new A.ParsedPath(_this.style, _this.root, _this.isRootRelative, A.List_List$from(_this.parts, true, t1), A.List_List$from(_this.separators, true, t1));
+      copy.removeTrailingSeparators$0();
+      t1 = copy.parts;
+      if (t1.length === 0) {
+        t1 = _this.root;
+        return t1 == null ? "" : t1;
+      }
+      return B.JSArray_methods.get$last(t1);
+    },
+    get$hasTrailingSeparator() {
+      var t1 = this.parts;
+      if (t1.length !== 0)
+        t1 = J.$eq$(B.JSArray_methods.get$last(t1), "") || !J.$eq$(B.JSArray_methods.get$last(this.separators), "");
+      else
+        t1 = false;
+      return t1;
+    },
+    removeTrailingSeparators$0() {
+      var t1, t2, _this = this;
+      while (true) {
+        t1 = _this.parts;
+        if (!(t1.length !== 0 && J.$eq$(B.JSArray_methods.get$last(t1), "")))
+          break;
+        B.JSArray_methods.removeLast$0(_this.parts);
+        _this.separators.pop();
+      }
+      t1 = _this.separators;
+      t2 = t1.length;
+      if (t2 !== 0)
+        t1[t2 - 1] = "";
+    },
+    normalize$1$canonicalize(canonicalize) {
+      var t1, t2, t3, leadingDoubles, _i, part, t4, _this = this,
+        newParts = A._setArrayType([], type$.JSArray_String);
+      for (t1 = _this.parts, t2 = t1.length, t3 = _this.style, leadingDoubles = 0, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        part = t1[_i];
+        t4 = J.getInterceptor$(part);
+        if (!(t4.$eq(part, ".") || t4.$eq(part, "")))
+          if (t4.$eq(part, ".."))
+            if (newParts.length !== 0)
+              newParts.pop();
+            else
+              ++leadingDoubles;
+          else
+            newParts.push(canonicalize ? t3.canonicalizePart$1(part) : part);
+      }
+      if (_this.root == null)
+        B.JSArray_methods.insertAll$2(newParts, 0, A.List_List$filled(leadingDoubles, "..", false, type$.String));
+      if (newParts.length === 0 && _this.root == null)
+        newParts.push(".");
+      _this.parts = newParts;
+      _this.separators = A.List_List$filled(newParts.length + 1, t3.get$separator(t3), true, type$.String);
+      t1 = _this.root;
+      if (t1 == null || newParts.length === 0 || !t3.needsSeparator$1(t1))
+        _this.separators[0] = "";
+      t1 = _this.root;
+      if (t1 != null && t3 === $.$get$Style_windows()) {
+        if (canonicalize)
+          t1 = _this.root = t1.toLowerCase();
+        t1.toString;
+        _this.root = A.stringReplaceAllUnchecked(t1, "/", "\\");
+      }
+      _this.removeTrailingSeparators$0();
+    },
+    normalize$0() {
+      return this.normalize$1$canonicalize(false);
+    },
+    toString$0(_) {
+      var i, _this = this,
+        t1 = _this.root;
+      t1 = t1 != null ? "" + t1 : "";
+      for (i = 0; i < _this.parts.length; ++i)
+        t1 = t1 + A.S(_this.separators[i]) + A.S(_this.parts[i]);
+      t1 += A.S(B.JSArray_methods.get$last(_this.separators));
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _kthLastIndexOf$3(path, character, k) {
+      var index, count, leftMostIndexedCharacter;
+      for (index = path.length - 1, count = 0, leftMostIndexedCharacter = 0; index >= 0; --index)
+        if (path[index] === character) {
+          ++count;
+          if (count === k)
+            return index;
+          leftMostIndexedCharacter = index;
+        }
+      return leftMostIndexedCharacter;
+    },
+    _splitExtension$1(level) {
+      var t1, file, lastDot;
+      if (level <= 0)
+        throw A.wrapException(A.RangeError$value(level, "level", "level's value must be greater than 0"));
+      t1 = this.parts;
+      t1 = new A.CastList(t1, A._arrayInstanceType(t1)._eval$1("CastList<1,String?>"));
+      file = t1.lastWhere$2$orElse(t1, new A.ParsedPath__splitExtension_closure(), new A.ParsedPath__splitExtension_closure0());
+      if (file == null)
+        return A._setArrayType(["", ""], type$.JSArray_String);
+      if (file === "..")
+        return A._setArrayType(["..", ""], type$.JSArray_String);
+      lastDot = this._kthLastIndexOf$3(file, ".", level);
+      if (lastDot <= 0)
+        return A._setArrayType([file, ""], type$.JSArray_String);
+      return A._setArrayType([B.JSString_methods.substring$2(file, 0, lastDot), B.JSString_methods.substring$1(file, lastDot)], type$.JSArray_String);
+    },
+    _splitExtension$0() {
+      return this._splitExtension$1(1);
+    }
+  };
+  A.ParsedPath__splitExtension_closure.prototype = {
+    call$1(p) {
+      return p !== "";
+    },
+    $signature: 257
+  };
+  A.ParsedPath__splitExtension_closure0.prototype = {
+    call$0() {
+      return null;
+    },
+    $signature: 1
+  };
+  A.PathException.prototype = {
+    toString$0(_) {
+      return "PathException: " + this.message;
+    },
+    $isException: 1,
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.PathMap.prototype = {};
+  A.PathMap__create_closure.prototype = {
+    call$2(path1, path2) {
+      if (path1 == null)
+        return path2 == null;
+      if (path2 == null)
+        return false;
+      return this._box_0.context._isWithinOrEquals$2(path1, path2) === B._PathRelation_equal;
+    },
+    $signature: 569
+  };
+  A.PathMap__create_closure0.prototype = {
+    call$1(path) {
+      return path == null ? 0 : this._box_0.context.hash$1(path);
+    },
+    $signature: 562
+  };
+  A.PathMap__create_closure1.prototype = {
+    call$1(path) {
+      return typeof path == "string" || path == null;
+    },
+    $signature: 128
+  };
+  A.Style.prototype = {
+    toString$0(_) {
+      return this.get$name(this);
+    }
+  };
+  A.PosixStyle.prototype = {
+    containsSeparator$1(path) {
+      return B.JSString_methods.contains$1(path, "/");
+    },
+    isSeparator$1(codeUnit) {
+      return codeUnit === 47;
+    },
+    needsSeparator$1(path) {
+      var t1 = path.length;
+      return t1 !== 0 && path.charCodeAt(t1 - 1) !== 47;
+    },
+    rootLength$2$withDrive(path, withDrive) {
+      if (path.length !== 0 && path.charCodeAt(0) === 47)
+        return 1;
+      return 0;
+    },
+    rootLength$1(path) {
+      return this.rootLength$2$withDrive(path, false);
+    },
+    isRootRelative$1(path) {
+      return false;
+    },
+    pathFromUri$1(uri) {
+      var t1;
+      if (uri.get$scheme() === "" || uri.get$scheme() === "file") {
+        t1 = uri.get$path(uri);
+        return A._Uri__uriDecode(t1, 0, t1.length, B.C_Utf8Codec, false);
+      }
+      throw A.wrapException(A.ArgumentError$("Uri " + uri.toString$0(0) + " must have scheme 'file:'.", null));
+    },
+    absolutePathToUri$1(path) {
+      var parsed = A.ParsedPath_ParsedPath$parse(path, this),
+        t1 = parsed.parts;
+      if (t1.length === 0)
+        B.JSArray_methods.addAll$1(t1, A._setArrayType(["", ""], type$.JSArray_String));
+      else if (parsed.get$hasTrailingSeparator())
+        B.JSArray_methods.add$1(parsed.parts, "");
+      return A._Uri__Uri(null, null, parsed.parts, "file");
+    },
+    get$name() {
+      return "posix";
+    },
+    get$separator() {
+      return "/";
+    }
+  };
+  A.UrlStyle.prototype = {
+    containsSeparator$1(path) {
+      return B.JSString_methods.contains$1(path, "/");
+    },
+    isSeparator$1(codeUnit) {
+      return codeUnit === 47;
+    },
+    needsSeparator$1(path) {
+      var t1 = path.length;
+      if (t1 === 0)
+        return false;
+      if (path.charCodeAt(t1 - 1) !== 47)
+        return true;
+      return B.JSString_methods.endsWith$1(path, "://") && this.rootLength$1(path) === t1;
+    },
+    rootLength$2$withDrive(path, withDrive) {
+      var i, codeUnit, index,
+        t1 = path.length;
+      if (t1 === 0)
+        return 0;
+      if (path.charCodeAt(0) === 47)
+        return 1;
+      for (i = 0; i < t1; ++i) {
+        codeUnit = path.charCodeAt(i);
+        if (codeUnit === 47)
+          return 0;
+        if (codeUnit === 58) {
+          if (i === 0)
+            return 0;
+          index = B.JSString_methods.indexOf$2(path, "/", B.JSString_methods.startsWith$2(path, "//", i + 1) ? i + 3 : i);
+          if (index <= 0)
+            return t1;
+          if (!withDrive || t1 < index + 3)
+            return index;
+          if (!B.JSString_methods.startsWith$1(path, "file://"))
+            return index;
+          t1 = A.driveLetterEnd(path, index + 1);
+          return t1 == null ? index : t1;
+        }
+      }
+      return 0;
+    },
+    rootLength$1(path) {
+      return this.rootLength$2$withDrive(path, false);
+    },
+    isRootRelative$1(path) {
+      return path.length !== 0 && path.charCodeAt(0) === 47;
+    },
+    pathFromUri$1(uri) {
+      return uri.toString$0(0);
+    },
+    relativePathToUri$1(path) {
+      return A.Uri_parse(path);
+    },
+    absolutePathToUri$1(path) {
+      return A.Uri_parse(path);
+    },
+    get$name() {
+      return "url";
+    },
+    get$separator() {
+      return "/";
+    }
+  };
+  A.WindowsStyle.prototype = {
+    containsSeparator$1(path) {
+      return B.JSString_methods.contains$1(path, "/");
+    },
+    isSeparator$1(codeUnit) {
+      return codeUnit === 47 || codeUnit === 92;
+    },
+    needsSeparator$1(path) {
+      var t1 = path.length;
+      if (t1 === 0)
+        return false;
+      t1 = path.charCodeAt(t1 - 1);
+      return !(t1 === 47 || t1 === 92);
+    },
+    rootLength$2$withDrive(path, withDrive) {
+      var index,
+        t1 = path.length;
+      if (t1 === 0)
+        return 0;
+      if (path.charCodeAt(0) === 47)
+        return 1;
+      if (path.charCodeAt(0) === 92) {
+        if (t1 < 2 || path.charCodeAt(1) !== 92)
+          return 1;
+        index = B.JSString_methods.indexOf$2(path, "\\", 2);
+        if (index > 0) {
+          index = B.JSString_methods.indexOf$2(path, "\\", index + 1);
+          if (index > 0)
+            return index;
+        }
+        return t1;
+      }
+      if (t1 < 3)
+        return 0;
+      if (!A.isAlphabetic(path.charCodeAt(0)))
+        return 0;
+      if (path.charCodeAt(1) !== 58)
+        return 0;
+      t1 = path.charCodeAt(2);
+      if (!(t1 === 47 || t1 === 92))
+        return 0;
+      return 3;
+    },
+    rootLength$1(path) {
+      return this.rootLength$2$withDrive(path, false);
+    },
+    isRootRelative$1(path) {
+      return this.rootLength$1(path) === 1;
+    },
+    pathFromUri$1(uri) {
+      var path, t1;
+      if (uri.get$scheme() !== "" && uri.get$scheme() !== "file")
+        throw A.wrapException(A.ArgumentError$("Uri " + uri.toString$0(0) + " must have scheme 'file:'.", null));
+      path = uri.get$path(uri);
+      if (uri.get$host() === "") {
+        if (path.length >= 3 && B.JSString_methods.startsWith$1(path, "/") && A.driveLetterEnd(path, 1) != null)
+          path = B.JSString_methods.replaceFirst$2(path, "/", "");
+      } else
+        path = "\\\\" + uri.get$host() + path;
+      t1 = A.stringReplaceAllUnchecked(path, "/", "\\");
+      return A._Uri__uriDecode(t1, 0, t1.length, B.C_Utf8Codec, false);
+    },
+    absolutePathToUri$1(path) {
+      var rootParts, t2,
+        parsed = A.ParsedPath_ParsedPath$parse(path, this),
+        t1 = parsed.root;
+      t1.toString;
+      if (B.JSString_methods.startsWith$1(t1, "\\\\")) {
+        rootParts = new A.WhereIterable(A._setArrayType(t1.split("\\"), type$.JSArray_String), new A.WindowsStyle_absolutePathToUri_closure(), type$.WhereIterable_String);
+        B.JSArray_methods.insert$2(parsed.parts, 0, rootParts.get$last(0));
+        if (parsed.get$hasTrailingSeparator())
+          B.JSArray_methods.add$1(parsed.parts, "");
+        return A._Uri__Uri(rootParts.get$first(0), null, parsed.parts, "file");
+      } else {
+        if (parsed.parts.length === 0 || parsed.get$hasTrailingSeparator())
+          B.JSArray_methods.add$1(parsed.parts, "");
+        t1 = parsed.parts;
+        t2 = parsed.root;
+        t2.toString;
+        t2 = A.stringReplaceAllUnchecked(t2, "/", "");
+        B.JSArray_methods.insert$2(t1, 0, A.stringReplaceAllUnchecked(t2, "\\", ""));
+        return A._Uri__Uri(null, null, parsed.parts, "file");
+      }
+    },
+    codeUnitsEqual$2(codeUnit1, codeUnit2) {
+      var upperCase1;
+      if (codeUnit1 === codeUnit2)
+        return true;
+      if (codeUnit1 === 47)
+        return codeUnit2 === 92;
+      if (codeUnit1 === 92)
+        return codeUnit2 === 47;
+      if ((codeUnit1 ^ codeUnit2) !== 32)
+        return false;
+      upperCase1 = codeUnit1 | 32;
+      return upperCase1 >= 97 && upperCase1 <= 122;
+    },
+    pathsEqual$2(path1, path2) {
+      var t1, i;
+      if (path1 === path2)
+        return true;
+      t1 = path1.length;
+      if (t1 !== path2.length)
+        return false;
+      for (i = 0; i < t1; ++i)
+        if (!this.codeUnitsEqual$2(path1.charCodeAt(i), path2.charCodeAt(i)))
+          return false;
+      return true;
+    },
+    canonicalizeCodeUnit$1(codeUnit) {
+      if (codeUnit === 47)
+        return 92;
+      if (codeUnit < 65)
+        return codeUnit;
+      if (codeUnit > 90)
+        return codeUnit;
+      return codeUnit | 32;
+    },
+    canonicalizePart$1(part) {
+      return part.toLowerCase();
+    },
+    get$name() {
+      return "windows";
+    },
+    get$separator() {
+      return "\\";
+    }
+  };
+  A.WindowsStyle_absolutePathToUri_closure.prototype = {
+    call$1(part) {
+      return part !== "";
+    },
+    $signature: 4
+  };
+  A.Version.prototype = {
+    get$min() {
+      return this;
+    },
+    get$max() {
+      return this;
+    },
+    get$includeMin() {
+      return true;
+    },
+    get$includeMax() {
+      return true;
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.Version && _this.major === other.major && _this.minor === other.minor && _this.patch === other.patch && B.C_IterableEquality.equals$2(0, _this.preRelease, other.preRelease) && B.C_IterableEquality.equals$2(0, _this.build, other.build);
+    },
+    get$hashCode(_) {
+      var _this = this;
+      return (_this.major ^ _this.minor ^ _this.patch ^ B.C_IterableEquality.hash$1(_this.preRelease) ^ B.C_IterableEquality.hash$1(_this.build)) >>> 0;
+    },
+    compareTo$1(_, other) {
+      var t1, t2, t3, comparison, _this = this;
+      if (other instanceof A.Version) {
+        t1 = _this.major;
+        t2 = other.major;
+        if (t1 !== t2)
+          return B.JSInt_methods.compareTo$1(t1, t2);
+        t1 = _this.minor;
+        t2 = other.minor;
+        if (t1 !== t2)
+          return B.JSInt_methods.compareTo$1(t1, t2);
+        t1 = _this.patch;
+        t2 = other.patch;
+        if (t1 !== t2)
+          return B.JSInt_methods.compareTo$1(t1, t2);
+        t1 = _this.preRelease;
+        t2 = t1.length === 0;
+        if (t2 && other.preRelease.length !== 0)
+          return 1;
+        t3 = other.preRelease;
+        if (t3.length === 0 && !t2)
+          return -1;
+        comparison = _this._compareLists$2(t1, t3);
+        if (comparison !== 0)
+          return comparison;
+        t1 = _this.build;
+        t2 = t1.length === 0;
+        if (t2 && other.build.length !== 0)
+          return -1;
+        t3 = other.build;
+        if (t3.length === 0 && !t2)
+          return 1;
+        return _this._compareLists$2(t1, t3);
+      } else
+        return -other.compareTo$1(0, _this);
+    },
+    toString$0(_) {
+      return this._version$_text;
+    },
+    _compareLists$2(a, b) {
+      var i, t1, t2, aPart, bPart;
+      for (i = 0; t1 = a.length, t2 = b.length, i < Math.max(t1, t2); ++i) {
+        aPart = i < t1 ? a[i] : null;
+        bPart = i < t2 ? b[i] : null;
+        if (J.$eq$(aPart, bPart))
+          continue;
+        if (aPart == null)
+          return -1;
+        if (bPart == null)
+          return 1;
+        if (typeof aPart == "number")
+          if (typeof bPart == "number")
+            return B.JSNumber_methods.compareTo$1(aPart, bPart);
+          else
+            return -1;
+        else if (typeof bPart == "number")
+          return 1;
+        else {
+          A._asString(aPart);
+          A._asString(bPart);
+          if (aPart === bPart)
+            t1 = 0;
+          else
+            t1 = aPart < bPart ? -1 : 1;
+          return t1;
+        }
+      }
+      return 0;
+    },
+    $isComparable: 1,
+    $isVersionRange: 1
+  };
+  A.Version__splitParts_closure.prototype = {
+    call$1(part) {
+      var t1 = A.Primitives_parseInt(part, null);
+      return t1 == null ? part : t1;
+    },
+    $signature: 530
+  };
+  A.VersionRange.prototype = {
+    $eq(_, other) {
+      var t1;
+      if (other == null)
+        return false;
+      if (!type$.VersionRange._is(other))
+        return false;
+      if (this.min == other.get$min())
+        if (J.$eq$(this.max, other.get$max())) {
+          t1 = !other.get$includeMin();
+          if (t1)
+            other.get$includeMax();
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    get$hashCode(_) {
+      var t1 = B.JSNull_methods.get$hashCode(this.min),
+        t2 = J.get$hashCode$(this.max);
+      return (t1 ^ t2 * 3 ^ 1090795 ^ 3633126) >>> 0;
+    },
+    allows$1(other) {
+      var t1 = this.max;
+      if (t1 != null)
+        if (other.compareTo$1(0, t1) > 0)
+          return false;
+      return true;
+    },
+    compareTo$1(_, other) {
+      if (other.get$min() == null)
+        return this._compareMax$1(other);
+      return -1;
+    },
+    _compareMax$1(other) {
+      var t2, result,
+        t1 = this.max;
+      if (t1 == null) {
+        if (other.get$max() == null)
+          return 0;
+        return 1;
+      } else if (other.get$max() == null)
+        return -1;
+      t2 = other.get$max();
+      t2.toString;
+      result = t1.compareTo$1(0, t2);
+      if (result !== 0)
+        return result;
+      other.get$includeMax();
+      return 0;
+    },
+    toString$0(_) {
+      var t2,
+        max = this.max,
+        t1 = max == null;
+      if (!t1)
+        t2 = "" + "<=" + max.toString$0(0);
+      else
+        t2 = "";
+      t1 = t1 ? t2 + "any" : t2;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isComparable: 1,
+    get$min() {
+      return this.min;
+    },
+    get$max() {
+      return this.max;
+    },
+    get$includeMin() {
+      return this.includeMin;
+    },
+    get$includeMax() {
+      return this.includeMax;
+    }
+  };
+  A.CssMediaQuery.prototype = {
+    merge$1(other) {
+      var t1, ourModifier, t2, t3, ourType, t4, theirModifier, t5, t6, theirType, t7, t8, negativeConditions, conditions, type, modifier, fewerConditions, fewerConditions0, moreConditions, _this = this, _null = null, _s3_ = "all";
+      if (!_this.conjunction || !other.conjunction)
+        return B._SingletonCssMediaQueryMergeResult_1;
+      t1 = _this.modifier;
+      ourModifier = t1 == null ? _null : t1.toLowerCase();
+      t2 = _this.type;
+      t3 = t2 == null;
+      ourType = t3 ? _null : t2.toLowerCase();
+      t4 = other.modifier;
+      theirModifier = t4 == null ? _null : t4.toLowerCase();
+      t5 = other.type;
+      t6 = t5 == null;
+      theirType = t6 ? _null : t5.toLowerCase();
+      t7 = ourType == null;
+      if (t7 && theirType == null) {
+        t1 = A.List_List$of(_this.conditions, true, type$.String);
+        B.JSArray_methods.addAll$1(t1, other.conditions);
+        return new A.MediaQuerySuccessfulMergeResult(A.CssMediaQuery$condition(t1, true));
+      }
+      t8 = ourModifier === "not";
+      if (t8 !== (theirModifier === "not")) {
+        if (ourType == theirType) {
+          negativeConditions = t8 ? _this.conditions : other.conditions;
+          if (B.JSArray_methods.every$1(negativeConditions, B.JSArray_methods.get$contains(t8 ? other.conditions : _this.conditions)))
+            return B._SingletonCssMediaQueryMergeResult_0;
+          else
+            return B._SingletonCssMediaQueryMergeResult_1;
+        } else if (t3 || A.equalsIgnoreCase(t2, _s3_) || t6 || A.equalsIgnoreCase(t5, _s3_))
+          return B._SingletonCssMediaQueryMergeResult_1;
+        if (t8) {
+          conditions = other.conditions;
+          type = theirType;
+          modifier = theirModifier;
+        } else {
+          conditions = _this.conditions;
+          type = ourType;
+          modifier = ourModifier;
+        }
+      } else if (t8) {
+        if (ourType != theirType)
+          return B._SingletonCssMediaQueryMergeResult_1;
+        fewerConditions = _this.conditions;
+        fewerConditions0 = other.conditions;
+        t3 = fewerConditions.length > fewerConditions0.length;
+        moreConditions = t3 ? fewerConditions : fewerConditions0;
+        if (t3)
+          fewerConditions = fewerConditions0;
+        if (!B.JSArray_methods.every$1(fewerConditions, B.JSArray_methods.get$contains(moreConditions)))
+          return B._SingletonCssMediaQueryMergeResult_1;
+        conditions = moreConditions;
+        type = ourType;
+        modifier = ourModifier;
+      } else if (t3 || A.equalsIgnoreCase(t2, _s3_)) {
+        type = (t6 || A.equalsIgnoreCase(t5, _s3_)) && t7 ? _null : theirType;
+        t3 = A.List_List$of(_this.conditions, true, type$.String);
+        B.JSArray_methods.addAll$1(t3, other.conditions);
+        conditions = t3;
+        modifier = theirModifier;
+      } else {
+        if (t6 || A.equalsIgnoreCase(t5, _s3_)) {
+          t3 = A.List_List$of(_this.conditions, true, type$.String);
+          B.JSArray_methods.addAll$1(t3, other.conditions);
+          conditions = t3;
+          modifier = ourModifier;
+        } else {
+          if (ourType != theirType)
+            return B._SingletonCssMediaQueryMergeResult_0;
+          else {
+            modifier = ourModifier == null ? theirModifier : ourModifier;
+            t3 = A.List_List$of(_this.conditions, true, type$.String);
+            B.JSArray_methods.addAll$1(t3, other.conditions);
+          }
+          conditions = t3;
+        }
+        type = ourType;
+      }
+      t2 = type == ourType ? t2 : t5;
+      return new A.MediaQuerySuccessfulMergeResult(A.CssMediaQuery$type(t2, conditions, modifier == ourModifier ? t1 : t4));
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CssMediaQuery && other.modifier == this.modifier && other.type == this.type && B.C_ListEquality.equals$2(0, other.conditions, this.conditions);
+    },
+    get$hashCode(_) {
+      return J.get$hashCode$(this.modifier) ^ J.get$hashCode$(this.type) ^ B.C_ListEquality0.hash$1(this.conditions);
+    },
+    toString$0(_) {
+      var t2, _this = this,
+        t1 = _this.modifier;
+      t1 = t1 != null ? "" + (t1 + " ") : "";
+      t2 = _this.type;
+      if (t2 != null) {
+        t1 += t2;
+        if (_this.conditions.length !== 0)
+          t1 += " and ";
+      }
+      t2 = _this.conjunction ? " and " : " or ";
+      t2 = t1 + B.JSArray_methods.join$1(_this.conditions, t2);
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    }
+  };
+  A._SingletonCssMediaQueryMergeResult.prototype = {
+    _enumToString$0() {
+      return "_SingletonCssMediaQueryMergeResult." + this._name;
+    }
+  };
+  A.MediaQuerySuccessfulMergeResult.prototype = {
+    toString$0(_) {
+      return this.query.toString$0(0);
+    }
+  };
+  A.ModifiableCssAtRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssAtRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      var t1, t2;
+      if (other instanceof A.ModifiableCssAtRule) {
+        t1 = this.name;
+        t2 = other.name;
+        t1 = t1.$ti._is(t2) && J.$eq$(t2.value, t1.value) && J.$eq$(this.value, other.value) && this.isChildless === other.isChildless;
+      } else
+        t1 = false;
+      return t1;
+    },
+    copyWithoutChildren$0() {
+      var _this = this;
+      return A.ModifiableCssAtRule$(_this.name, _this.span, _this.isChildless, _this.value);
+    },
+    addChild$1(child) {
+      this.super$ModifiableCssParentNode$addChild(child);
+    },
+    get$isChildless() {
+      return this.isChildless;
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssComment.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssComment$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    $isCssComment: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssDeclaration.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssDeclaration$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.name.toString$0(0) + ": " + this.value.toString$0(0) + ";";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssImport.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssImport$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssKeyframeBlock.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssKeyframeBlock$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      return other instanceof A.ModifiableCssKeyframeBlock && B.C_ListEquality.equals$2(0, this.selector.value, other.selector.value);
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssKeyframeBlock$(this.selector, this.span);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssMediaRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssMediaRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      return other instanceof A.ModifiableCssMediaRule && B.C_ListEquality.equals$2(0, this.queries, other.queries);
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssMediaRule$(this.queries, this.span);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssNode.prototype = {
+    get$hasFollowingSibling() {
+      var t2,
+        t1 = this._parent;
+      if (t1 == null)
+        t1 = null;
+      else {
+        t1 = t1.children;
+        t2 = this._indexInParent;
+        t2.toString;
+        t1 = A.SubListIterable$(t1, t2 + 1, null, t1.$ti._eval$1("ListBase.E")).any$1(0, new A.ModifiableCssNode_hasFollowingSibling_closure());
+      }
+      return t1 === true;
+    },
+    get$isGroupEnd() {
+      return this.isGroupEnd;
+    }
+  };
+  A.ModifiableCssNode_hasFollowingSibling_closure.prototype = {
+    call$1(sibling) {
+      return !sibling.accept$1(B._IsInvisibleVisitor_true_false);
+    },
+    $signature: 111
+  };
+  A.ModifiableCssParentNode.prototype = {
+    get$isChildless() {
+      return false;
+    },
+    addChild$1(child) {
+      var t1;
+      child._parent = this;
+      t1 = this._children;
+      child._indexInParent = t1.length;
+      t1.push(child);
+    },
+    clearChildren$0() {
+      var t1, t2, _i, child;
+      for (t1 = this._children, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        child = t1[_i];
+        child._indexInParent = child._parent = null;
+      }
+      B.JSArray_methods.clear$0(t1);
+    },
+    $isCssParentNode: 1,
+    get$children(receiver) {
+      return this.children;
+    }
+  };
+  A.ModifiableCssStyleRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssStyleRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      var t1;
+      if (other instanceof A.ModifiableCssStyleRule)
+        t1 = B.C_ListEquality.equals$2(0, other._style_rule$_selector._box$_inner.value.components, this._style_rule$_selector._box$_inner.value.components);
+      else
+        t1 = false;
+      return t1;
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssStyleRule$(this._style_rule$_selector, this.span, false, this.originalSelector);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssStylesheet.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssStylesheet$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      return other instanceof A.ModifiableCssStylesheet;
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssStylesheet$(this.span);
+    },
+    $isCssStylesheet: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssSupportsRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssSupportsRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      var t1, t2;
+      if (other instanceof A.ModifiableCssSupportsRule) {
+        t1 = this.condition;
+        t2 = other.condition;
+        t1 = t1.$ti._is(t2) && J.$eq$(t2.value, t1.value);
+      } else
+        t1 = false;
+      return t1;
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssSupportsRule$(this.condition, this.span);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.CssNode.prototype = {
+    toString$0(_) {
+      return A.serialize(this, true, null, true, null, false, null, true)._0;
+    },
+    $isAstNode: 1
+  };
+  A.CssParentNode.prototype = {};
+  A._IsInvisibleVisitor.prototype = {
+    visitCssAtRule$1(rule) {
+      return false;
+    },
+    visitCssComment$1(comment) {
+      return this.includeComments && comment.text.charCodeAt(2) !== 33;
+    },
+    visitCssStyleRule$1(rule) {
+      var t1 = rule._style_rule$_selector._box$_inner;
+      return (this.includeBogus ? t1.value.accept$1(B._IsInvisibleVisitor_true) : t1.value.accept$1(B._IsInvisibleVisitor_false)) || this.super$EveryCssVisitor$visitCssStyleRule(rule);
+    }
+  };
+  A.__IsInvisibleVisitor_Object_EveryCssVisitor.prototype = {};
+  A.CssStylesheet.prototype = {
+    get$isGroupEnd() {
+      return false;
+    },
+    get$isChildless() {
+      return false;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitCssStylesheet$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    get$children(receiver) {
+      return this.children;
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.CssValue.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return this.$ti._is(other) && J.$eq$(other.value, this.value);
+    },
+    get$hashCode(_) {
+      return J.get$hashCode$(this.value);
+    },
+    toString$0(_) {
+      return J.toString$0$(this.value);
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._FakeAstNode.prototype = {
+    get$span(_) {
+      return this._callback.call$0();
+    },
+    $isAstNode: 1
+  };
+  A.Argument.prototype = {
+    toString$0(_) {
+      var t1 = this.defaultValue,
+        t2 = this.name;
+      return t1 == null ? t2 : t2 + ": " + t1.toString$0(0);
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ArgumentDeclaration.prototype = {
+    get$spanWithName() {
+      var t3, t4,
+        t1 = this.span,
+        t2 = t1.file,
+        text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2._decodedChars, 0, null), 0, null),
+        i = A.FileLocation$_(t2, t1._file$_start).offset - 1;
+      while (true) {
+        if (i > 0) {
+          t3 = text.charCodeAt(i);
+          t3 = t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        --i;
+      }
+      t3 = text.charCodeAt(i);
+      if (!(t3 === 95 || A.CharacterExtension_get_isAlphabetic(t3) || t3 >= 128))
+        t3 = t3 >= 48 && t3 <= 57 || t3 === 45;
+      else
+        t3 = true;
+      if (!t3)
+        return t1;
+      --i;
+      while (true) {
+        if (i >= 0) {
+          t3 = text.charCodeAt(i);
+          if (t3 !== 95) {
+            if (!(t3 >= 97 && t3 <= 122))
+              t4 = t3 >= 65 && t3 <= 90;
+            else
+              t4 = true;
+            t4 = t4 || t3 >= 128;
+          } else
+            t4 = true;
+          if (!t4)
+            t3 = t3 >= 48 && t3 <= 57 || t3 === 45;
+          else
+            t3 = true;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        --i;
+      }
+      t3 = i + 1;
+      t4 = text.charCodeAt(t3);
+      if (!(t4 === 95 || A.CharacterExtension_get_isAlphabetic(t4) || t4 >= 128))
+        return t1;
+      return A.SpanExtensions_trimRight(A.SpanExtensions_trimLeft(t2.span$2(0, t3, A.FileLocation$_(t2, t1._end).offset)));
+    },
+    verify$2(positional, names) {
+      var t1, t2, t3, namedUsed, i, argument, t4, unknownNames, _this = this,
+        _s10_ = "invocation",
+        _s8_ = "argument";
+      for (t1 = _this.$arguments, t2 = t1.length, t3 = names._baseMap, namedUsed = 0, i = 0; i < t2; ++i) {
+        argument = t1[i];
+        if (i < positional) {
+          t4 = argument.name;
+          if (t3.containsKey$1(t4))
+            throw A.wrapException(A.SassScriptException$("Argument " + _this._originalArgumentName$1(t4) + string$.x20was_p, null));
+        } else {
+          t4 = argument.name;
+          if (t3.containsKey$1(t4))
+            ++namedUsed;
+          else if (argument.defaultValue == null)
+            throw A.wrapException(A.MultiSpanSassScriptException$("Missing argument " + _this._originalArgumentName$1(t4) + ".", _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_this.get$spanWithName(), "declaration"], type$.FileSpan, type$.String)));
+        }
+      }
+      if (_this.restArgument != null)
+        return;
+      if (positional > t2) {
+        t1 = names.get$isEmpty(0) ? "" : "positional ";
+        throw A.wrapException(A.MultiSpanSassScriptException$("Only " + t2 + " " + t1 + A.pluralize(_s8_, t2, null) + " allowed, but " + positional + " " + A.pluralize("was", positional, "were") + " passed.", _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_this.get$spanWithName(), "declaration"], type$.FileSpan, type$.String)));
+      }
+      if (namedUsed < t3.get$length(t3)) {
+        t2 = type$.String;
+        unknownNames = A.LinkedHashSet_LinkedHashSet$of(names, t2);
+        unknownNames.removeAll$1(new A.MappedListIterable(t1, new A.ArgumentDeclaration_verify_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Object?>")));
+        throw A.wrapException(A.MultiSpanSassScriptException$("No " + A.pluralize(_s8_, unknownNames._collection$_length, null) + " named " + A.toSentence(unknownNames.map$1$1(0, new A.ArgumentDeclaration_verify_closure0(), type$.Object), "or") + ".", _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_this.get$spanWithName(), "declaration"], type$.FileSpan, t2)));
+      }
+    },
+    _originalArgumentName$1($name) {
+      var t1, text, t2, _i, argument, t3, t4, end, _null = null;
+      if ($name === this.restArgument) {
+        t1 = this.span;
+        text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.file._decodedChars, t1._file$_start, t1._end), 0, _null);
+        return B.JSString_methods.substring$2(B.JSString_methods.substring$1(text, B.JSString_methods.lastIndexOf$1(text, "$")), 0, B.JSString_methods.indexOf$1(text, "."));
+      }
+      for (t1 = this.$arguments, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        argument = t1[_i];
+        if (argument.name === $name) {
+          t1 = argument.defaultValue;
+          t2 = argument.span;
+          t3 = t2.file;
+          t4 = t2._file$_start;
+          t2 = t2._end;
+          if (t1 == null) {
+            t1 = t3._decodedChars;
+            t1 = A.String_String$fromCharCodes(new Uint32Array(t1.subarray(t4, A._checkValidRange(t4, t2, t1.length))), 0, _null);
+          } else {
+            t1 = t3._decodedChars;
+            text = A.String_String$fromCharCodes(new Uint32Array(t1.subarray(t4, A._checkValidRange(t4, t2, t1.length))), 0, _null);
+            t1 = B.JSString_methods.substring$2(text, 0, B.JSString_methods.indexOf$1(text, ":"));
+            end = A._lastNonWhitespace(t1, false);
+            t1 = end == null ? "" : B.JSString_methods.substring$2(t1, 0, end + 1);
+          }
+          return t1;
+        }
+      }
+      throw A.wrapException(A.ArgumentError$(string$.This_d + $name + '".', _null));
+    },
+    matches$2(positional, names) {
+      var t1, t2, t3, namedUsed, i, argument;
+      for (t1 = this.$arguments, t2 = t1.length, t3 = names._baseMap, namedUsed = 0, i = 0; i < t2; ++i) {
+        argument = t1[i];
+        if (i < positional) {
+          if (t3.containsKey$1(argument.name))
+            return false;
+        } else if (t3.containsKey$1(argument.name))
+          ++namedUsed;
+        else if (argument.defaultValue == null)
+          return false;
+      }
+      if (this.restArgument != null)
+        return true;
+      if (positional > t2)
+        return false;
+      if (namedUsed < t3.get$length(t3))
+        return false;
+      return true;
+    },
+    toString$0(_) {
+      var t2, t3, _i,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = this.$arguments, t3 = t2.length, _i = 0; _i < t3; ++_i)
+        t1.push("$" + A.S(t2[_i]));
+      t2 = this.restArgument;
+      if (t2 != null)
+        t1.push("$" + t2 + "...");
+      return B.JSArray_methods.join$1(t1, ", ");
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ArgumentDeclaration_verify_closure.prototype = {
+    call$1(argument) {
+      return argument.name;
+    },
+    $signature: 525
+  };
+  A.ArgumentDeclaration_verify_closure0.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A.ArgumentInvocation.prototype = {
+    get$isEmpty(_) {
+      var t1;
+      if (this.positional.length === 0) {
+        t1 = this.named;
+        t1 = t1.get$isEmpty(t1) && this.rest == null;
+      } else
+        t1 = false;
+      return t1;
+    },
+    toString$0(_) {
+      var t2, t3, _i, _1_0, _2_0, _this = this,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = _this.positional, t3 = t2.length, _i = 0; _i < t3; ++_i)
+        t1.push(_this._parenthesizeArgument$1(t2[_i]));
+      for (t2 = A.MapExtensions_get_pairs(_this.named, type$.String, type$.Expression), t2 = t2.get$iterator(t2); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push("$" + t3._0 + ": " + _this._parenthesizeArgument$1(t3._1));
+      }
+      _1_0 = _this.rest;
+      if (_1_0 != null)
+        t1.push(_this._parenthesizeArgument$1(_1_0) + "...");
+      _2_0 = _this.keywordRest;
+      if (_2_0 != null)
+        t1.push(_this._parenthesizeArgument$1(_2_0) + "...");
+      return "(" + B.JSArray_methods.join$1(t1, ", ") + ")";
+    },
+    _parenthesizeArgument$1(argument) {
+      var t1;
+      $label0$0: {
+        if (argument instanceof A.ListExpression && B.ListSeparator_ECn === argument.separator && !argument.hasBrackets && argument.contents.length >= 2) {
+          t1 = "(" + argument.toString$0(0) + ")";
+          break $label0$0;
+        }
+        t1 = argument.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.AtRootQuery.prototype = {
+    excludes$1(node) {
+      var t1, _this = this;
+      if (_this._all)
+        return !_this.include;
+      $label0$0: {
+        if (node instanceof A.ModifiableCssStyleRule) {
+          t1 = _this._at_root_query$_rule !== _this.include;
+          break $label0$0;
+        }
+        if (node instanceof A.ModifiableCssMediaRule) {
+          t1 = _this.excludesName$1("media");
+          break $label0$0;
+        }
+        if (node instanceof A.ModifiableCssSupportsRule) {
+          t1 = _this.excludesName$1("supports");
+          break $label0$0;
+        }
+        if (node instanceof A.ModifiableCssAtRule) {
+          t1 = _this.excludesName$1(node.name.value.toLowerCase());
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    excludesName$1($name) {
+      var t1 = this._all || this.names.contains$1(0, $name);
+      return t1 !== this.include;
+    }
+  };
+  A.ConfiguredVariable.prototype = {
+    toString$0(_) {
+      var t1 = this.expression.toString$0(0),
+        t2 = this.isGuarded ? " !default" : "";
+      return "$" + this.name + ": " + t1 + t2;
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._IsCalculationSafeVisitor.prototype = {
+    visitBinaryOperationExpression$1(node) {
+      var t1;
+      if (B.Set_mqKz.contains$1(0, node.operator))
+        t1 = node.left.accept$1(this) || node.right.accept$1(this);
+      else
+        t1 = false;
+      return t1;
+    },
+    visitBooleanExpression$1(node) {
+      return false;
+    },
+    visitColorExpression$1(node) {
+      return false;
+    },
+    visitFunctionExpression$1(node) {
+      return true;
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return true;
+    },
+    visitIfExpression$1(node) {
+      return true;
+    },
+    visitListExpression$1(node) {
+      var t1;
+      if (node.separator === B.ListSeparator_nbm)
+        if (!node.hasBrackets) {
+          t1 = node.contents;
+          t1 = t1.length > 1 && B.JSArray_methods.every$1(t1, new A._IsCalculationSafeVisitor_visitListExpression_closure(this));
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    visitMapExpression$1(node) {
+      return false;
+    },
+    visitNullExpression$1(node) {
+      return false;
+    },
+    visitNumberExpression$1(node) {
+      return true;
+    },
+    visitParenthesizedExpression$1(node) {
+      return node.expression.accept$1(this);
+    },
+    visitSelectorExpression$1(node) {
+      return false;
+    },
+    visitStringExpression$1(node) {
+      var text, t1, t2;
+      if (node.hasQuotes)
+        return false;
+      text = node.text.get$initialPlain();
+      if (!B.JSString_methods.startsWith$1(text, "!"))
+        if (!B.JSString_methods.startsWith$1(text, "#")) {
+          t1 = text.length;
+          if ((1 >= t1 ? null : text.charCodeAt(1)) !== 43) {
+            t2 = (3 >= t1 ? null : text.charCodeAt(3)) !== 40;
+            t1 = t2;
+          } else
+            t1 = false;
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    visitSupportsExpression$1(node) {
+      return false;
+    },
+    visitUnaryOperationExpression$1(node) {
+      return false;
+    },
+    visitValueExpression$1(node) {
+      return false;
+    },
+    visitVariableExpression$1(node) {
+      return true;
+    }
+  };
+  A._IsCalculationSafeVisitor_visitListExpression_closure.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 110
+  };
+  A.BinaryOperationExpression.prototype = {
+    get$span(_) {
+      var right,
+        left = this.left;
+      for (; left instanceof A.BinaryOperationExpression;)
+        left = left.left;
+      right = this.right;
+      for (; right instanceof A.BinaryOperationExpression;)
+        right = right.right;
+      return left.get$span(left).expand$1(0, right.get$span(right));
+    },
+    get$operatorSpan() {
+      var t3, t4,
+        t1 = this.left,
+        t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t3 = this.right;
+      t4 = t3.get$span(t3);
+      if (t2 === t4.get$file(t4)) {
+        t2 = t1.get$span(t1);
+        t2 = t2.get$end(t2);
+        t4 = t3.get$span(t3);
+        t4 = t2.offset < t4.get$start(t4).offset;
+        t2 = t4;
+      } else
+        t2 = false;
+      if (t2) {
+        t2 = t1.get$span(t1);
+        t2 = t2.get$file(t2);
+        t1 = t1.get$span(t1);
+        t1 = t1.get$end(t1);
+        t3 = t3.get$span(t3);
+        t3 = A.SpanExtensions_trimRight(A.SpanExtensions_trimLeft(t2.span$2(0, t1.offset, t3.get$start(t3).offset)));
+        t1 = t3;
+      } else
+        t1 = this.get$span(0);
+      return t1;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitBinaryOperationExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1, t2, right, operator, t3, _this = this,
+        _0_0 = _this.left;
+      $label0$0: {
+        if (_0_0 instanceof A.BinaryOperationExpression) {
+          t1 = _0_0.operator.precedence < _this.operator.precedence;
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.ListExpression && !_0_0.hasBrackets && _0_0.contents.length >= 2) {
+          t1 = true;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      t2 = t1 ? "" + A.Primitives_stringFromCharCode(40) : "";
+      t2 += _0_0.toString$0(0);
+      t1 = t1 ? t2 + A.Primitives_stringFromCharCode(41) : t2;
+      t2 = _this.operator;
+      t1 = t1 + A.Primitives_stringFromCharCode(32) + t2.operator + A.Primitives_stringFromCharCode(32);
+      right = _this.right;
+      $label1$1: {
+        if (right instanceof A.BinaryOperationExpression) {
+          operator = right.operator;
+          if (operator.precedence <= t2.precedence) {
+            t3 = !(operator === t2 && operator.isAssociative);
+            t2 = t3;
+          } else
+            t2 = false;
+          break $label1$1;
+        }
+        if (right instanceof A.ListExpression && !right.hasBrackets && right.contents.length >= 2) {
+          t2 = true;
+          break $label1$1;
+        }
+        t2 = false;
+        break $label1$1;
+      }
+      if (t2)
+        t1 += A.Primitives_stringFromCharCode(40);
+      t1 += right.toString$0(0);
+      if (t2)
+        t1 += A.Primitives_stringFromCharCode(41);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode: 1,
+    $isExpression: 1
+  };
+  A.BinaryOperator.prototype = {
+    _enumToString$0() {
+      return "BinaryOperator." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.BooleanExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitBooleanExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return String(this.value);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ColorExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitColorExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return A.serializeValue(this.value, true, true);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.FunctionExpression.prototype = {
+    get$nameSpan() {
+      if (this.namespace == null)
+        return A.SpanExtensions_initialIdentifier(this.span);
+      return A.SpanExtensions_initialIdentifier(A.FileSpanExtension_subspan(A.SpanExtensions_withoutInitialIdentifier(this.span), 1, null));
+    },
+    accept$1$1(visitor) {
+      return visitor.visitFunctionExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.namespace;
+      t1 = t1 != null ? "" + (t1 + ".") : "";
+      t1 += this.originalName + this.$arguments.toString$0(0);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.IfExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitIfExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "if" + this.$arguments.toString$0(0);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.InterpolatedFunctionExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitInterpolatedFunctionExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.name.toString$0(0) + this.$arguments.toString$0(0);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ListExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitListExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, t3, t4, t5, _this = this,
+        t1 = _this.hasBrackets;
+      if (t1)
+        t2 = "" + A.Primitives_stringFromCharCode(91);
+      else {
+        t2 = _this.contents.length;
+        if (t2 !== 0)
+          t2 = t2 === 1 && _this.separator === B.ListSeparator_ECn;
+        else
+          t2 = true;
+        t2 = t2 ? "" + A.Primitives_stringFromCharCode(40) : "";
+      }
+      t3 = _this.contents;
+      t4 = _this.separator === B.ListSeparator_ECn;
+      t5 = t4 ? ", " : " ";
+      t5 = t2 + new A.MappedListIterable(t3, new A.ListExpression_toString_closure(_this), A._arrayInstanceType(t3)._eval$1("MappedListIterable<1,String>")).join$1(0, t5);
+      if (t1)
+        t1 = t5 + A.Primitives_stringFromCharCode(93);
+      else {
+        t1 = t3.length;
+        if (t1 === 0)
+          t1 = t5 + A.Primitives_stringFromCharCode(41);
+        else
+          t1 = t1 === 1 && t4 ? t5 + ",)" : t5;
+      }
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _list0$_elementNeedsParens$1(expression) {
+      var childSeparator, t1, _0_13;
+      $label0$0: {
+        if (expression instanceof A.ListExpression && expression.contents.length >= 2 && !expression.hasBrackets) {
+          childSeparator = expression.separator;
+          t1 = this.separator === B.ListSeparator_ECn ? childSeparator === B.ListSeparator_ECn : childSeparator !== B.ListSeparator_undecided_null_undecided;
+          break $label0$0;
+        }
+        if (expression instanceof A.UnaryOperationExpression) {
+          _0_13 = expression.operator;
+          if (B.UnaryOperator_cLp !== _0_13)
+            t1 = B.UnaryOperator_AiQ === _0_13;
+          else
+            t1 = true;
+        } else
+          t1 = false;
+        if (t1) {
+          t1 = this.separator === B.ListSeparator_nbm;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ListExpression_toString_closure.prototype = {
+    call$1(element) {
+      return this.$this._list0$_elementNeedsParens$1(element) ? "(" + element.toString$0(0) + ")" : element.toString$0(0);
+    },
+    $signature: 136
+  };
+  A.MapExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitMapExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, t3, _i, t4, key, value,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = this.pairs, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        t4 = t2[_i];
+        key = t4._0;
+        value = t4._1;
+        t1.push(key.toString$0(0) + ": " + value.toString$0(0));
+      }
+      return "(" + B.JSArray_methods.join$1(t1, ", ") + ")";
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.NullExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitNullExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "null";
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.NumberExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitNumberExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return A.serializeValue(A.SassNumber_SassNumber(this.value, this.unit), true, true);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ParenthesizedExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitParenthesizedExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "(" + this.expression.toString$0(0) + ")";
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SelectorExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitSelectorExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "&";
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.StringExpression.prototype = {
+    get$span(_) {
+      return this.text.span;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitStringExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    asInterpolation$1$static($static) {
+      var t1, t2, quote, t3, t4, buffer, t5, t6, _i, value;
+      if (!this.hasQuotes)
+        return this.text;
+      t1 = this.text;
+      t2 = t1.contents;
+      quote = A.StringExpression__bestQuote(new A.WhereTypeIterable(t2, type$.WhereTypeIterable_String));
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer(t3, t4);
+      t5 = A.Primitives_stringFromCharCode(quote);
+      t3._contents += t5;
+      for (t5 = t2.length, t6 = type$.Expression, _i = 0; _i < t5; ++_i) {
+        value = t2[_i];
+        if (t6._is(value)) {
+          buffer._flushText$0();
+          t4.push(value);
+          continue;
+        }
+        if (typeof value == "string")
+          A.StringExpression__quoteInnerText(value, quote, buffer, $static);
+      }
+      t2 = A.Primitives_stringFromCharCode(quote);
+      t3._contents += t2;
+      return buffer.interpolation$1(t1.span);
+    },
+    asInterpolation$0() {
+      return this.asInterpolation$1$static(false);
+    },
+    toString$0(_) {
+      return this.asInterpolation$0().toString$0(0);
+    },
+    $isAstNode: 1,
+    $isExpression: 1
+  };
+  A.SupportsExpression.prototype = {
+    get$span(_) {
+      var t1 = this.condition;
+      return t1.get$span(t1);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitSupportsExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.condition.toString$0(0);
+    },
+    $isAstNode: 1,
+    $isExpression: 1
+  };
+  A.UnaryOperationExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitUnaryOperationExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var operand,
+        t1 = this.operator,
+        t2 = t1.operator;
+      t1 = t1 === B.UnaryOperator_not_not_not ? t2 + A.Primitives_stringFromCharCode(32) : t2;
+      operand = this.operand;
+      $label0$0: {
+        if (!(operand instanceof A.BinaryOperationExpression))
+          if (!(operand instanceof A.UnaryOperationExpression))
+            t2 = operand instanceof A.ListExpression && !operand.hasBrackets && operand.contents.length >= 2;
+          else
+            t2 = true;
+        else
+          t2 = true;
+        if (t2)
+          break $label0$0;
+        break $label0$0;
+      }
+      if (t2)
+        t1 += "40";
+      t1 += operand.toString$0(0);
+      if (t2)
+        t1 += "41";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.UnaryOperator.prototype = {
+    _enumToString$0() {
+      return "UnaryOperator." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.ValueExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitValueExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return A.serializeValue(this.value, true, true);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.VariableExpression.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitVariableExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.span;
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.file._decodedChars, t1._file$_start, t1._end), 0, null);
+    },
+    $isAstNode: 1,
+    $isExpression: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.DynamicImport.prototype = {
+    toString$0(_) {
+      return A.StringExpression_quoteText(this.urlString);
+    },
+    $isAstNode: 1,
+    $isImport: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.StaticImport.prototype = {
+    toString$0(_) {
+      var t1 = this.url.toString$0(0),
+        t2 = this.modifiers;
+      return t1 + (t2 == null ? "" : " " + t2.toString$0(0));
+    },
+    $isAstNode: 1,
+    $isImport: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Interpolation.prototype = {
+    get$asPlain() {
+      var _0_1, t1, _0_6_isSet, _0_6, first, _null = null,
+        _0_0 = this.contents;
+      $label0$0: {
+        _0_1 = _0_0.length;
+        if (_0_1 <= 0) {
+          t1 = "";
+          break $label0$0;
+        }
+        _0_6_isSet = _0_1 === 1;
+        if (_0_6_isSet) {
+          _0_6 = _0_0[0];
+          t1 = _0_6;
+          t1 = typeof t1 == "string";
+        } else {
+          _0_6 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          first = A._asString(_0_6_isSet ? _0_6 : _0_0[0]);
+          t1 = first;
+          break $label0$0;
+        }
+        t1 = _null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    get$initialPlain() {
+      var _0_4_isSet, _0_4, t1, first,
+        _0_0 = this.contents;
+      $label0$0: {
+        _0_4_isSet = _0_0.length >= 1;
+        if (_0_4_isSet) {
+          _0_4 = _0_0[0];
+          t1 = _0_4;
+          t1 = typeof t1 == "string";
+        } else {
+          _0_4 = null;
+          t1 = false;
+        }
+        if (t1) {
+          first = A._asString(_0_4_isSet ? _0_4 : _0_0[0]);
+          t1 = first;
+          break $label0$0;
+        }
+        t1 = "";
+        break $label0$0;
+      }
+      return t1;
+    },
+    Interpolation$2(contents, span) {
+      var t1, t2, t3, i, t4, t5,
+        _s8_ = "contents";
+      for (t1 = this.contents, t2 = t1.length, t3 = type$.Expression, i = 0; i < t2; ++i) {
+        t4 = t1[i];
+        t5 = typeof t4 == "string";
+        if (!t5 && !t3._is(t4))
+          throw A.wrapException(A.ArgumentError$value(t1, _s8_, string$.May_on));
+        if (i !== 0 && typeof t1[i - 1] == "string" && t5)
+          throw A.wrapException(A.ArgumentError$value(t1, _s8_, "May not contain adjacent Strings."));
+      }
+    },
+    toString$0(_) {
+      var t1 = this.contents;
+      return new A.MappedListIterable(t1, new A.Interpolation_toString_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$0(0);
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Interpolation_toString_closure.prototype = {
+    call$1(value) {
+      return typeof value == "string" ? value : "#{" + A.S(value) + "}";
+    },
+    $signature: 117
+  };
+  A.AtRootRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitAtRootRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var buffer = new A.StringBuffer("@at-root "),
+        t1 = this.query;
+      if (t1 != null)
+        buffer._contents = "@at-root " + (t1.toString$0(0) + " ");
+      t1 = this.children;
+      return buffer.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.AtRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitAtRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var children,
+        t1 = "@" + this.name.toString$0(0),
+        buffer = new A.StringBuffer(t1),
+        t2 = this.value;
+      if (t2 != null)
+        buffer._contents = t1 + (" " + t2.toString$0(0));
+      children = this.children;
+      return children == null ? buffer.toString$0(0) + ";" : buffer.toString$0(0) + " {" + B.JSArray_methods.join$1(children, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.CallableDeclaration.prototype = {
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ContentBlock.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitContentBlock$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2,
+        t1 = this.$arguments;
+      t1 = t1.$arguments.length === 0 && t1.restArgument == null ? "" : " using (" + t1.toString$0(0) + ")";
+      t2 = this.children;
+      return t1 + (" {" + (t2 && B.JSArray_methods).join$1(t2, " ") + "}");
+    }
+  };
+  A.ContentRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitContentRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.$arguments;
+      return t1.get$isEmpty(0) ? "@content;" : "@content(" + t1.toString$0(0) + ");";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.DebugRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitDebugRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@debug " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Declaration.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitDeclaration$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t3, _0_0,
+        buffer = new A.StringBuffer(""),
+        t1 = this.name,
+        t2 = "" + t1.toString$0(0);
+      buffer._contents = t2;
+      t2 = buffer._contents = t2 + A.Primitives_stringFromCharCode(58);
+      t3 = this.value;
+      if (t3 != null) {
+        t1 = !B.JSString_methods.startsWith$1(t1.get$initialPlain(), "--") ? buffer._contents = t2 + A.Primitives_stringFromCharCode(32) : t2;
+        buffer._contents = t1 + t3.toString$0(0);
+      }
+      _0_0 = this.children;
+      if (_0_0 != null)
+        return buffer.toString$0(0) + " {" + B.JSArray_methods.join$1(_0_0, " ") + "}";
+      else
+        return buffer.toString$0(0) + ";";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.EachRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitEachRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.variables,
+        t2 = this.children;
+      return "@each " + new A.MappedListIterable(t1, new A.EachRule_toString_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$1(0, ", ") + " in " + this.list.toString$0(0) + " {" + (t2 && B.JSArray_methods).join$1(t2, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.EachRule_toString_closure.prototype = {
+    call$1(variable) {
+      return "$" + variable;
+    },
+    $signature: 5
+  };
+  A.ErrorRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitErrorRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@error " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ExtendRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitExtendRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.selector.toString$0(0),
+        t2 = this.isOptional ? " !optional" : "";
+      return "@extend " + t1 + t2 + ";";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ForRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitForRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var _this = this,
+        t1 = _this.from.toString$0(0),
+        t2 = _this.isExclusive ? "to" : "through",
+        t3 = _this.children;
+      return "@for $" + _this.variable + " from " + t1 + " " + t2 + " " + _this.to.toString$0(0) + " {" + (t3 && B.JSArray_methods).join$1(t3, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ForwardRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitForwardRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, prefix, _this = this,
+        t1 = "@forward " + A.StringExpression_quoteText(_this.url.toString$0(0)),
+        shownMixinsAndFunctions = _this.shownMixinsAndFunctions,
+        hiddenMixinsAndFunctions = _this.hiddenMixinsAndFunctions;
+      if (shownMixinsAndFunctions != null) {
+        t2 = _this.shownVariables;
+        t2.toString;
+        t2 = t1 + " show " + _this._forward_rule$_memberList$2(shownMixinsAndFunctions, t2);
+        t1 = t2;
+      } else if (hiddenMixinsAndFunctions != null && hiddenMixinsAndFunctions._base.get$isNotEmpty(0)) {
+        t2 = _this.hiddenVariables;
+        t2.toString;
+        t2 = t1 + " hide " + _this._forward_rule$_memberList$2(hiddenMixinsAndFunctions, t2);
+        t1 = t2;
+      }
+      prefix = _this.prefix;
+      if (prefix != null)
+        t1 += " as " + prefix + "*";
+      t2 = _this.configuration;
+      t1 = (t2.length !== 0 ? t1 + (" with (" + B.JSArray_methods.join$1(t2, ", ") + ")") : t1) + ";";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _forward_rule$_memberList$2(mixinsAndFunctions, variables) {
+      var t2,
+        t1 = A.List_List$of(mixinsAndFunctions, true, type$.String);
+      for (t2 = variables._base.get$iterator(0); t2.moveNext$0();)
+        t1.push("$" + t2.get$current(0));
+      return B.JSArray_methods.join$1(t1, ", ");
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.FunctionRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitFunctionRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@function " + this.name + "(" + this.$arguments.toString$0(0) + ") {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    }
+  };
+  A.IfRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitIfRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var result = A.ListExtensions_mapIndexed(this.clauses, new A.IfRule_toString_closure(), type$.IfClause, type$.String).join$1(0, " "),
+        lastClause = this.lastClause;
+      return lastClause != null ? result + (" " + lastClause.toString$0(0)) : result;
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.IfRule_toString_closure.prototype = {
+    call$2(index, clause) {
+      var t1 = index === 0 ? "if" : "else if";
+      return "@" + t1 + " " + clause.expression.toString$0(0) + " {" + B.JSArray_methods.join$1(clause.children, " ") + "}";
+    },
+    $signature: 507
+  };
+  A.IfRuleClause.prototype = {};
+  A.IfRuleClause$__closure.prototype = {
+    call$1(child) {
+      var t1;
+      $label0$0: {
+        if (child instanceof A.VariableDeclaration || child instanceof A.FunctionRule || child instanceof A.MixinRule) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (child instanceof A.ImportRule) {
+          t1 = B.JSArray_methods.any$1(child.imports, new A.IfRuleClause$___closure());
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 153
+  };
+  A.IfRuleClause$___closure.prototype = {
+    call$1($import) {
+      return $import instanceof A.DynamicImport;
+    },
+    $signature: 154
+  };
+  A.IfClause.prototype = {
+    toString$0(_) {
+      return "@if " + this.expression.toString$0(0) + " {" + B.JSArray_methods.join$1(this.children, " ") + "}";
+    }
+  };
+  A.ElseClause.prototype = {
+    toString$0(_) {
+      return "@else {" + B.JSArray_methods.join$1(this.children, " ") + "}";
+    }
+  };
+  A.ImportRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitImportRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@import " + B.JSArray_methods.join$1(this.imports, ", ") + ";";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.IncludeRule.prototype = {
+    get$spanWithoutContent() {
+      var t2, t3,
+        t1 = this.span;
+      if (!(this.content == null)) {
+        t2 = t1.file;
+        t3 = this.$arguments.span;
+        t3 = A.SpanExtensions_trimRight(A.SpanExtensions_trimLeft(t2.span$2(0, A.FileLocation$_(t2, t1._file$_start).offset, t3.get$end(t3).offset)));
+        t1 = t3;
+      }
+      return t1;
+    },
+    get$nameSpan() {
+      var startSpan, scanner, _null = null,
+        t1 = this.span,
+        t2 = t1._file$_start,
+        t3 = t1._end,
+        t4 = t1.file._decodedChars;
+      if (B.JSString_methods.startsWith$1(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t4, t2, t3), 0, _null), "+"))
+        startSpan = A.SpanExtensions_trimLeft(A.FileSpanExtension_subspan(t1, 1, _null));
+      else {
+        scanner = A.StringScanner$(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t4, t2, t3), 0, _null), _null, _null);
+        scanner.expectChar$1(64);
+        A._scanIdentifier(scanner);
+        startSpan = A.SpanExtensions_trimLeft(A.FileSpanExtension_subspan(t1, scanner._string_scanner$_position, _null));
+      }
+      return A.SpanExtensions_initialIdentifier(this.namespace != null ? A.FileSpanExtension_subspan(A.SpanExtensions_withoutInitialIdentifier(startSpan), 1, _null) : startSpan);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitIncludeRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, _this = this,
+        t1 = _this.namespace;
+      t1 = t1 != null ? "@include " + (t1 + ".") : "@include ";
+      t1 += _this.name;
+      t2 = _this.$arguments;
+      if (!t2.get$isEmpty(0))
+        t1 += "(" + t2.toString$0(0) + ")";
+      t2 = _this.content;
+      t1 += t2 == null ? ";" : " " + t2.toString$0(0);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.LoudComment.prototype = {
+    get$span(_) {
+      return this.text.span;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitLoudComment$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.text.toString$0(0);
+    },
+    $isAstNode: 1,
+    $isStatement: 1
+  };
+  A.MediaRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitMediaRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@media " + this.query.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.MixinRule.prototype = {
+    get$hasContent() {
+      var result, _this = this,
+        value = _this.__MixinRule_hasContent_FI;
+      if (value === $) {
+        result = J.$eq$(B.C__HasContentVisitor.visitChildren$1(_this.children), true);
+        _this.__MixinRule_hasContent_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__MixinRule_hasContent_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitMixinRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = "@mixin " + this.name,
+        t2 = this.$arguments;
+      if (!(t2.$arguments.length === 0 && t2.restArgument == null))
+        t1 += "(" + t2.toString$0(0) + ")";
+      t2 = this.children;
+      t2 = t1 + (" {" + (t2 && B.JSArray_methods).join$1(t2, " ") + "}");
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    }
+  };
+  A._HasContentVisitor.prototype = {
+    visitContentRule$1(_) {
+      return true;
+    }
+  };
+  A.__HasContentVisitor_Object_StatementSearchVisitor.prototype = {};
+  A.ParentStatement.prototype = {$isAstNode: 1, $isStatement: 1};
+  A.ParentStatement_closure.prototype = {
+    call$1(child) {
+      var t1;
+      $label0$0: {
+        if (child instanceof A.VariableDeclaration || child instanceof A.FunctionRule || child instanceof A.MixinRule) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (child instanceof A.ImportRule) {
+          t1 = B.JSArray_methods.any$1(child.imports, new A.ParentStatement__closure());
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 153
+  };
+  A.ParentStatement__closure.prototype = {
+    call$1($import) {
+      return $import instanceof A.DynamicImport;
+    },
+    $signature: 154
+  };
+  A.ReturnRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitReturnRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@return " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SilentComment.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitSilentComment$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.text;
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.StyleRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitStyleRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return this.selector.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Stylesheet.prototype = {
+    Stylesheet$internal$3$plainCss(children, span, plainCss) {
+      var t1, t2, t3, t4, _i, child;
+      for (t1 = this.children, t2 = t1.length, t3 = this._forwards, t4 = this._uses, _i = 0; _i < t2; ++_i) {
+        child = t1[_i];
+        if (child instanceof A.UseRule) {
+          t4.push(child);
+          continue;
+        }
+        if (child instanceof A.ForwardRule) {
+          t3.push(child);
+          continue;
+        }
+        if (child instanceof A.SilentComment || child instanceof A.LoudComment || child instanceof A.VariableDeclaration)
+          continue;
+        break;
+      }
+    },
+    accept$1$1(visitor) {
+      return visitor.visitStylesheet$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return (t1 && B.JSArray_methods).join$1(t1, " ");
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitSupportsRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@supports " + this.condition.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.UseRule.prototype = {
+    UseRule$4$configuration(url, namespace, span, configuration) {
+      var t1, t2, _i, variable;
+      for (t1 = this.configuration, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        variable = t1[_i];
+        if (variable.isGuarded)
+          throw A.wrapException(A.ArgumentError$value(variable, "configured variable", "can't be guarded in a @use rule."));
+      }
+    },
+    accept$1$1(visitor) {
+      return visitor.visitUseRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.url,
+        t2 = "@use " + A.StringExpression_quoteText(t1.toString$0(0)),
+        basename = t1.get$pathSegments().length === 0 ? "" : B.JSArray_methods.get$last(t1.get$pathSegments()),
+        dot = B.JSString_methods.indexOf$1(basename, ".");
+      t1 = this.namespace;
+      if (t1 !== B.JSString_methods.substring$2(basename, 0, dot === -1 ? basename.length : dot))
+        t1 = t2 + (" as " + (t1 == null ? "*" : t1));
+      else
+        t1 = t2;
+      t2 = this.configuration;
+      t1 = (t2.length !== 0 ? t1 + (" with (" + B.JSArray_methods.join$1(t2, ", ") + ")") : t1) + ";";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.VariableDeclaration.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitVariableDeclaration$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.namespace;
+      t1 = t1 != null ? "" + (t1 + ".") : "";
+      t1 += "$" + this.name + ": " + this.expression.toString$0(0) + ";";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.WarnRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitWarnRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@warn " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode: 1,
+    $isStatement: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.WhileRule.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitWhileRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@while " + this.condition.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsAnything.prototype = {
+    toString$0(_) {
+      return "(" + this.contents.toString$0(0) + ")";
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsDeclaration.prototype = {
+    get$isCustomProperty() {
+      var t1,
+        _0_0 = this.name;
+      $label0$0: {
+        if (_0_0 instanceof A.StringExpression && !_0_0.hasQuotes) {
+          t1 = B.JSString_methods.startsWith$1(_0_0.text.get$initialPlain(), "--");
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    toString$0(_) {
+      return "(" + this.name.toString$0(0) + ": " + this.value.toString$0(0) + ")";
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsFunction.prototype = {
+    toString$0(_) {
+      return this.name.toString$0(0) + "(" + this.$arguments.toString$0(0) + ")";
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsInterpolation.prototype = {
+    toString$0(_) {
+      return "#{" + this.expression.toString$0(0) + "}";
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsNegation.prototype = {
+    toString$0(_) {
+      var t1 = this.condition;
+      if (t1 instanceof A.SupportsNegation || t1 instanceof A.SupportsOperation)
+        return "not (" + t1.toString$0(0) + ")";
+      else
+        return "not " + t1.toString$0(0);
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsOperation.prototype = {
+    toString$0(_) {
+      var _this = this;
+      return _this._operation$_parenthesize$1(_this.left) + " " + _this.operator + " " + _this._operation$_parenthesize$1(_this.right);
+    },
+    _operation$_parenthesize$1(condition) {
+      var t1;
+      if (!(condition instanceof A.SupportsNegation))
+        t1 = condition instanceof A.SupportsOperation && condition.operator === this.operator;
+      else
+        t1 = true;
+      return t1 ? "(" + condition.toString$0(0) + ")" : condition.toString$0(0);
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Selector.prototype = {
+    assertNotBogus$1$name($name) {
+      if (!this.accept$1(B._IsBogusVisitor_true))
+        return;
+      A.warnForDeprecation("$" + $name + ": " + (this.toString$0(0) + string$.x20is_nov), B.Deprecation_ido);
+    },
+    toString$0(_) {
+      var visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+      this.accept$1(visitor);
+      return visitor._serialize$_buffer.toString$0(0);
+    },
+    $isAstNode: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._IsInvisibleVisitor0.prototype = {
+    visitSelectorList$1(list) {
+      return B.JSArray_methods.every$1(list.components, this.get$visitComplexSelector());
+    },
+    visitComplexSelector$1(complex) {
+      var t1;
+      if (!this.super$AnySelectorVisitor$visitComplexSelector(complex))
+        t1 = this.includeBogus && complex.accept$1(B._IsBogusVisitor_false);
+      else
+        t1 = true;
+      return t1;
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      return true;
+    },
+    visitPseudoSelector$1(pseudo) {
+      var t1,
+        _0_0 = pseudo.selector;
+      if (_0_0 != null) {
+        if (pseudo.name === "not")
+          t1 = this.includeBogus && _0_0.accept$1(B._IsBogusVisitor_true);
+        else
+          t1 = this.visitSelectorList$1(_0_0);
+        return t1;
+      } else
+        return false;
+    }
+  };
+  A._IsBogusVisitor.prototype = {
+    visitComplexSelector$1(complex) {
+      var t2,
+        t1 = complex.components;
+      if (t1.length === 0)
+        return complex.leadingCombinators.length !== 0;
+      else {
+        t2 = this.includeLeadingCombinator ? 0 : 1;
+        return complex.leadingCombinators.length > t2 || B.JSArray_methods.get$last(t1).combinators.length !== 0 || B.JSArray_methods.any$1(t1, new A._IsBogusVisitor_visitComplexSelector_closure(this));
+      }
+    },
+    visitPseudoSelector$1(pseudo) {
+      var selector = pseudo.selector;
+      if (selector == null)
+        return false;
+      return pseudo.name === "has" ? selector.accept$1(B._IsBogusVisitor_false) : selector.accept$1(B._IsBogusVisitor_true);
+    }
+  };
+  A._IsBogusVisitor_visitComplexSelector_closure.prototype = {
+    call$1(component) {
+      return component.combinators.length > 1 || this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature: 50
+  };
+  A._IsUselessVisitor.prototype = {
+    visitComplexSelector$1(complex) {
+      return complex.leadingCombinators.length > 1 || B.JSArray_methods.any$1(complex.components, new A._IsUselessVisitor_visitComplexSelector_closure(this));
+    },
+    visitPseudoSelector$1(pseudo) {
+      return pseudo.accept$1(B._IsBogusVisitor_true);
+    }
+  };
+  A._IsUselessVisitor_visitComplexSelector_closure.prototype = {
+    call$1(component) {
+      return component.combinators.length > 1 || this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature: 50
+  };
+  A.__IsBogusVisitor_Object_AnySelectorVisitor.prototype = {};
+  A.__IsInvisibleVisitor_Object_AnySelectorVisitor.prototype = {};
+  A.__IsUselessVisitor_Object_AnySelectorVisitor.prototype = {};
+  A.AttributeSelector.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitAttributeSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.AttributeSelector && other.name.$eq(0, _this.name) && other.op == _this.op && other.value == _this.value && other.modifier == _this.modifier;
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = _this.name;
+      return (B.JSString_methods.get$hashCode(t1.name) ^ J.get$hashCode$(t1.namespace) ^ J.get$hashCode$(_this.op) ^ J.get$hashCode$(_this.value) ^ J.get$hashCode$(_this.modifier)) >>> 0;
+    }
+  };
+  A.AttributeOperator.prototype = {
+    _enumToString$0() {
+      return "AttributeOperator." + this._name;
+    },
+    toString$0(_) {
+      return this._attribute$_text;
+    }
+  };
+  A.ClassSelector.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ClassSelector && other.name === this.name;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitClassSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      return new A.ClassSelector(this.name + suffix, this.span);
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    }
+  };
+  A.Combinator.prototype = {
+    _enumToString$0() {
+      return "Combinator." + this._name;
+    },
+    toString$0(_) {
+      return this._combinator$_text;
+    }
+  };
+  A.ComplexSelector.prototype = {
+    get$specificity() {
+      var result, _this = this,
+        value = _this.__ComplexSelector_specificity_FI;
+      if (value === $) {
+        result = B.JSArray_methods.fold$2(_this.components, 0, new A.ComplexSelector_specificity_closure());
+        _this.__ComplexSelector_specificity_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__ComplexSelector_specificity_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$singleCompound() {
+      var _0_0, _0_4, t1, selector, _null = null;
+      if (this.leadingCombinators.length !== 0)
+        return _null;
+      _0_0 = this.components;
+      $label0$0: {
+        if (_0_0.length === 1) {
+          _0_4 = _0_0[0];
+          t1 = _0_4;
+          selector = t1.selector;
+          t1 = _0_4.combinators.length <= 0;
+        } else {
+          selector = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = selector;
+          break $label0$0;
+        }
+        t1 = _null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitComplexSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    isSuperselector$1(other) {
+      return this.leadingCombinators.length === 0 && other.leadingCombinators.length === 0 && A.complexIsSuperselector(this.components, other.components);
+    },
+    withAdditionalCombinators$1(combinators) {
+      var _0_0, _0_1, t1, initial, last, _this = this;
+      if (combinators.length === 0)
+        return _this;
+      _0_0 = _this.components;
+      $label0$0: {
+        _0_1 = _0_0.length;
+        if (_0_1 >= 1) {
+          t1 = _0_1 - 1;
+          initial = B.JSArray_methods.sublist$2(_0_0, 0, t1);
+          last = _0_0[t1];
+          t1 = A.List_List$of(initial, true, type$.ComplexSelectorComponent);
+          t1.push(last.withAdditionalCombinators$1(combinators));
+          t1 = A.ComplexSelector$(_this.leadingCombinators, t1, _this.span, _this.lineBreak);
+          break $label0$0;
+        }
+        if (_0_1 <= 0) {
+          t1 = A.List_List$of(_this.leadingCombinators, true, type$.CssValue_Combinator);
+          B.JSArray_methods.addAll$1(t1, combinators);
+          t1 = A.ComplexSelector$(t1, B.List_empty0, _this.span, _this.lineBreak);
+          break $label0$0;
+        }
+        throw A.wrapException(A.ReachabilityError$(string$.None_o));
+      }
+      return t1;
+    },
+    concatenate$3$forceLineBreak(child, span, forceLineBreak) {
+      var t2, _0_1, initial, last, _this = this,
+        t1 = child.leadingCombinators,
+        _0_0 = _this.components;
+      if (t1.length === 0) {
+        t1 = A.List_List$of(_0_0, true, type$.ComplexSelectorComponent);
+        B.JSArray_methods.addAll$1(t1, child.components);
+        t2 = _this.lineBreak || child.lineBreak || forceLineBreak;
+        return A.ComplexSelector$(_this.leadingCombinators, t1, span, t2);
+      } else {
+        _0_1 = _0_0.length;
+        if (_0_1 >= 1) {
+          t2 = _0_1 - 1;
+          initial = B.JSArray_methods.sublist$2(_0_0, 0, t2);
+          last = _0_0[t2];
+          t2 = A.List_List$of(initial, true, type$.ComplexSelectorComponent);
+          t2.push(last.withAdditionalCombinators$1(t1));
+          B.JSArray_methods.addAll$1(t2, child.components);
+          t1 = _this.lineBreak || child.lineBreak || forceLineBreak;
+          return A.ComplexSelector$(_this.leadingCombinators, t2, span, t1);
+        } else {
+          t2 = A.List_List$of(_this.leadingCombinators, true, type$.CssValue_Combinator);
+          B.JSArray_methods.addAll$1(t2, t1);
+          t1 = _this.lineBreak || child.lineBreak || forceLineBreak;
+          return A.ComplexSelector$(t2, child.components, span, t1);
+        }
+      }
+    },
+    concatenate$2(child, span) {
+      return this.concatenate$3$forceLineBreak(child, span, false);
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.leadingCombinators) ^ B.C_ListEquality0.hash$1(this.components);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ComplexSelector && B.C_ListEquality.equals$2(0, this.leadingCombinators, other.leadingCombinators) && B.C_ListEquality.equals$2(0, this.components, other.components);
+    }
+  };
+  A.ComplexSelector_specificity_closure.prototype = {
+    call$2(sum, component) {
+      return sum + component.selector.get$specificity();
+    },
+    $signature: 372
+  };
+  A.ComplexSelectorComponent.prototype = {
+    withAdditionalCombinators$1(combinators) {
+      var t1, t2, _this = this;
+      if (combinators.length === 0)
+        t1 = _this;
+      else {
+        t1 = type$.CssValue_Combinator;
+        t2 = A.List_List$of(_this.combinators, true, t1);
+        B.JSArray_methods.addAll$1(t2, combinators);
+        t1 = new A.ComplexSelectorComponent(_this.selector, A.List_List$unmodifiable(t2, t1), _this.span);
+      }
+      return t1;
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.selector.components) ^ B.C_ListEquality0.hash$1(this.combinators);
+    },
+    $eq(_, other) {
+      var t1;
+      if (other == null)
+        return false;
+      if (other instanceof A.ComplexSelectorComponent) {
+        t1 = B.C_ListEquality.equals$2(0, this.selector.components, other.selector.components);
+        t1 = t1 && B.C_ListEquality.equals$2(0, this.combinators, other.combinators);
+      } else
+        t1 = false;
+      return t1;
+    },
+    toString$0(_) {
+      var t1 = this.combinators;
+      return A.serializeSelector(this.selector, true) + new A.MappedListIterable(t1, new A.ComplexSelectorComponent_toString_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$1(0, "");
+    }
+  };
+  A.ComplexSelectorComponent_toString_closure.prototype = {
+    call$1(combinator) {
+      return " " + combinator.toString$0(0);
+    },
+    $signature: 361
+  };
+  A.CompoundSelector.prototype = {
+    get$specificity() {
+      var result, _this = this,
+        value = _this.__CompoundSelector_specificity_FI;
+      if (value === $) {
+        result = B.JSArray_methods.fold$2(_this.components, 0, new A.CompoundSelector_specificity_closure());
+        _this.__CompoundSelector_specificity_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__CompoundSelector_specificity_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitCompoundSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.components);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CompoundSelector && B.C_ListEquality.equals$2(0, this.components, other.components);
+    }
+  };
+  A.CompoundSelector_specificity_closure.prototype = {
+    call$2(sum, component) {
+      return sum + component.get$specificity();
+    },
+    $signature: 360
+  };
+  A.IDSelector.prototype = {
+    get$specificity() {
+      return A._asInt(Math.pow(A.SimpleSelector.prototype.get$specificity.call(this), 2));
+    },
+    accept$1$1(visitor) {
+      return visitor.visitIDSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      return new A.IDSelector(this.name + suffix, this.span);
+    },
+    unify$1(compound) {
+      if (B.JSArray_methods.any$1(compound, new A.IDSelector_unify_closure(this)))
+        return null;
+      return this.super$SimpleSelector$unify(compound);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.IDSelector && other.name === this.name;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    }
+  };
+  A.IDSelector_unify_closure.prototype = {
+    call$1(simple) {
+      var t1;
+      if (simple instanceof A.IDSelector)
+        t1 = this.$this.name !== simple.name;
+      else
+        t1 = false;
+      return t1;
+    },
+    $signature: 14
+  };
+  A.SelectorList.prototype = {
+    get$asSassList() {
+      var t1 = this.components;
+      return A.SassList$(new A.MappedListIterable(t1, new A.SelectorList_asSassList_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value>")), B.ListSeparator_ECn, false);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitSelectorList$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unify$1(other) {
+      var t3, t4, t5, t6, _i, complex1, _i0, t7,
+        t1 = type$.JSArray_ComplexSelector,
+        t2 = A._setArrayType([], t1);
+      for (t3 = this.components, t4 = t3.length, t5 = other.components, t6 = t5.length, _i = 0; _i < t4; ++_i) {
+        complex1 = t3[_i];
+        for (_i0 = 0; _i0 < t6; ++_i0) {
+          t7 = A.unifyComplex(A._setArrayType([complex1, t5[_i0]], t1), complex1.span);
+          if (t7 != null)
+            B.JSArray_methods.addAll$1(t2, t7);
+        }
+      }
+      return t2.length === 0 ? null : A.SelectorList$(t2, this.span);
+    },
+    nestWithin$3$implicitParent$preserveParentSelectors($parent, implicitParent, preserveParentSelectors) {
+      var parentSelector, t1, _this = this;
+      if ($parent == null) {
+        if (preserveParentSelectors)
+          return _this;
+        parentSelector = B.C__ParentSelectorVisitor.visitSelectorList$1(_this);
+        if (parentSelector == null)
+          return _this;
+        throw A.wrapException(A.SassException$(string$.Top_les, parentSelector.span, null));
+      }
+      t1 = _this.components;
+      return A.SelectorList$(A.flattenVertically(new A.MappedListIterable(t1, new A.SelectorList_nestWithin_closure(_this, preserveParentSelectors, implicitParent, $parent), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Iterable<ComplexSelector>>")), type$.ComplexSelector), _this.span);
+    },
+    nestWithin$1($parent) {
+      return this.nestWithin$3$implicitParent$preserveParentSelectors($parent, true, false);
+    },
+    nestWithin$2$implicitParent($parent, implicitParent) {
+      return this.nestWithin$3$implicitParent$preserveParentSelectors($parent, implicitParent, false);
+    },
+    _nestWithinCompound$2(component, $parent) {
+      var resolvedSimples, parentSelector, error, stackTrace, t2, resolvedSimples0, exception,
+        t1 = component.selector,
+        simples = t1.components,
+        containsSelectorPseudo = J.any$1$ax(simples, new A.SelectorList__nestWithinCompound_closure());
+      if (!containsSelectorPseudo && !(J.get$first$ax(simples) instanceof A.ParentSelector))
+        return null;
+      if (containsSelectorPseudo) {
+        t2 = simples;
+        resolvedSimples0 = new A.MappedListIterable(t2, new A.SelectorList__nestWithinCompound_closure0($parent), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,SimpleSelector>"));
+      } else
+        resolvedSimples0 = simples;
+      resolvedSimples = resolvedSimples0;
+      parentSelector = J.get$first$ax(simples);
+      try {
+        if (!(parentSelector instanceof A.ParentSelector)) {
+          t2 = component.span;
+          t2 = A._setArrayType([A.ComplexSelector$(B.List_empty1, A._setArrayType([new A.ComplexSelectorComponent(A.CompoundSelector$(resolvedSimples, t1.span), A.List_List$unmodifiable(component.combinators, type$.CssValue_Combinator), t2)], type$.JSArray_ComplexSelectorComponent), t2, false)], type$.JSArray_ComplexSelector);
+          return t2;
+        } else if (J.get$length$asx(simples) === 1 && parentSelector.suffix == null) {
+          t1 = $parent.withAdditionalCombinators$1(component.combinators);
+          return t1.components;
+        }
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace(error.withAdditionalSpan$2(parentSelector.span, "parent selector"), error, stackTrace);
+        } else
+          throw exception;
+      }
+      t1 = $parent.components;
+      return new A.MappedListIterable(t1, new A.SelectorList__nestWithinCompound_closure1(parentSelector, resolvedSimples, component), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector>"));
+    },
+    isSuperselector$1(other) {
+      return A.listIsSuperselector(this.components, other.components);
+    },
+    withAdditionalCombinators$1(combinators) {
+      var t1;
+      if (combinators.length === 0)
+        t1 = this;
+      else {
+        t1 = this.components;
+        t1 = A.SelectorList$(new A.MappedListIterable(t1, new A.SelectorList_withAdditionalCombinators_closure(combinators), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector>")), this.span);
+      }
+      return t1;
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.components);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SelectorList && B.C_ListEquality.equals$2(0, this.components, other.components);
+    }
+  };
+  A.SelectorList_asSassList_closure.prototype = {
+    call$1(complex) {
+      var t3, t4, _i, component, t5, visitor, t6, t7, _i0,
+        t1 = type$.JSArray_Value,
+        t2 = A._setArrayType([], t1);
+      for (t3 = complex.leadingCombinators, t4 = t3.length, _i = 0; _i < t4; ++_i)
+        t2.push(new A.SassString(J.toString$0$(t3[_i].value), false));
+      for (t3 = complex.components, t4 = t3.length, _i = 0; _i < t4; ++_i) {
+        component = t3[_i];
+        t5 = component.selector;
+        visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+        t5.accept$1(visitor);
+        t5 = A._setArrayType([new A.SassString(visitor._serialize$_buffer.toString$0(0), false)], t1);
+        for (t6 = component.combinators, t7 = t6.length, _i0 = 0; _i0 < t7; ++_i0)
+          t5.push(new A.SassString(J.toString$0$(t6[_i0].value), false));
+        B.JSArray_methods.addAll$1(t2, t5);
+      }
+      return A.SassList$(t2, B.ListSeparator_nbm, false);
+    },
+    $signature: 340
+  };
+  A.SelectorList_nestWithin_closure.prototype = {
+    call$1(complex) {
+      var t1, newComplexes, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, _i, component, resolved, i, t12, t13, t14, _i0, newComplex, t15, _this = this;
+      if (_this.preserveParentSelectors || complex.accept$1(B.C__ParentSelectorVisitor) == null) {
+        if (!_this.implicitParent)
+          return A._setArrayType([complex], type$.JSArray_ComplexSelector);
+        t1 = _this.parent.components;
+        return new A.MappedListIterable(t1, new A.SelectorList_nestWithin__closure(complex), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector>"));
+      }
+      t1 = type$.JSArray_ComplexSelector;
+      newComplexes = A._setArrayType([], t1);
+      for (t2 = complex.components, t3 = t2.length, t4 = _this.$this, t5 = _this.parent, t6 = type$.ComplexSelector, t7 = complex.leadingCombinators, t8 = t7.length === 0, t9 = complex.span, t10 = type$.ComplexSelectorComponent, t11 = type$.JSArray_ComplexSelectorComponent, _i = 0; _i < t3; ++_i) {
+        component = t2[_i];
+        resolved = t4._nestWithinCompound$2(component, t5);
+        if (resolved == null)
+          if (newComplexes.length === 0)
+            newComplexes.push(A.ComplexSelector$(t7, A._setArrayType([component], t11), t9, false));
+          else
+            for (i = 0; i < newComplexes.length; ++i) {
+              t12 = newComplexes[i];
+              t13 = t12.leadingCombinators;
+              t14 = A.List_List$of(t12.components, true, t10);
+              t14.push(component);
+              t12 = t12.lineBreak;
+              newComplexes[i] = A.ComplexSelector$(t13, t14, t9, t12);
+            }
+        else if (newComplexes.length === 0)
+          B.JSArray_methods.addAll$1(newComplexes, t8 ? resolved : J.map$1$1$ax(resolved, new A.SelectorList_nestWithin__closure0(complex), t6));
+        else {
+          t12 = A._setArrayType([], t1);
+          for (t13 = newComplexes.length, t14 = J.getInterceptor$ax(resolved), _i0 = 0; _i0 < newComplexes.length; newComplexes.length === t13 || (0, A.throwConcurrentModificationError)(newComplexes), ++_i0) {
+            newComplex = newComplexes[_i0];
+            for (t15 = t14.get$iterator(resolved); t15.moveNext$0();)
+              t12.push(newComplex.concatenate$2(t15.get$current(t15), newComplex.span));
+          }
+          newComplexes = t12;
+        }
+      }
+      return newComplexes;
+    },
+    $signature: 338
+  };
+  A.SelectorList_nestWithin__closure.prototype = {
+    call$1(parentComplex) {
+      var t1 = this.complex;
+      return parentComplex.concatenate$2(t1, t1.span);
+    },
+    $signature: 57
+  };
+  A.SelectorList_nestWithin__closure0.prototype = {
+    call$1(resolvedComplex) {
+      var t1 = resolvedComplex.leadingCombinators,
+        t2 = this.complex,
+        t3 = t2.leadingCombinators;
+      if (t1.length === 0)
+        t1 = t3;
+      else {
+        t3 = A.List_List$of(t3, true, type$.CssValue_Combinator);
+        B.JSArray_methods.addAll$1(t3, t1);
+        t1 = t3;
+      }
+      return A.ComplexSelector$(t1, resolvedComplex.components, t2.span, resolvedComplex.lineBreak);
+    },
+    $signature: 57
+  };
+  A.SelectorList__nestWithinCompound_closure.prototype = {
+    call$1(simple) {
+      var selector;
+      if (!(simple instanceof A.PseudoSelector))
+        return false;
+      selector = simple.selector;
+      return selector != null && selector.accept$1(B.C__ParentSelectorVisitor) != null;
+    },
+    $signature: 14
+  };
+  A.SelectorList__nestWithinCompound_closure0.prototype = {
+    call$1(simple) {
+      var _0_2, selector, t1;
+      $label0$0: {
+        if (simple instanceof A.PseudoSelector) {
+          _0_2 = simple.selector;
+          if (_0_2 != null) {
+            selector = _0_2 == null ? type$.SelectorList._as(_0_2) : _0_2;
+            t1 = selector.accept$1(B.C__ParentSelectorVisitor) != null;
+          } else {
+            selector = null;
+            t1 = false;
+          }
+        } else {
+          selector = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = simple.withSelector$1(selector.nestWithin$2$implicitParent(this.parent, false));
+          break $label0$0;
+        }
+        t1 = simple;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 327
+  };
+  A.SelectorList__nestWithinCompound_closure1.prototype = {
+    call$1(complex) {
+      var lastComponent, suffix, lastSimples, t1, t2, last, t3, error, stackTrace, t4, t5, t6, t7, exception, _this = this;
+      try {
+        t4 = complex.components;
+        lastComponent = B.JSArray_methods.get$last(t4);
+        if (lastComponent.combinators.length !== 0) {
+          t1 = A.MultiSpanSassException$('Selector "' + complex.toString$0(0) + string$.x22x20can_, A.SpanExtensions_trimRight(lastComponent.span), "outer selector", A.LinkedHashMap_LinkedHashMap$_literal([_this.parentSelector.span, "parent selector"], type$.FileSpan, type$.String), null);
+          throw A.wrapException(t1);
+        }
+        suffix = _this.parentSelector.suffix;
+        lastSimples = lastComponent.selector.components;
+        t5 = type$.SimpleSelector;
+        t6 = _this.resolvedSimples;
+        t7 = J.getInterceptor$ax(t6);
+        if (suffix == null) {
+          t1 = A.List_List$of(lastSimples, true, t5);
+          J.addAll$1$ax(t1, t7.skip$1(t6, 1));
+          t1 = t1;
+        } else {
+          t2 = A.List_List$of(A.IterableExtension_get_exceptLast(lastSimples), true, t5);
+          J.add$1$ax(t2, J.get$last$ax(lastSimples).addSuffix$1(suffix));
+          J.addAll$1$ax(t2, t7.skip$1(t6, 1));
+          t1 = t2;
+        }
+        t2 = _this.component;
+        last = A.CompoundSelector$(t1, t2.selector.span);
+        t3 = A.List_List$of(A.IterableExtension_get_exceptLast(t4), true, type$.ComplexSelectorComponent);
+        t4 = t2.span;
+        J.add$1$ax(t3, new A.ComplexSelectorComponent(last, A.List_List$unmodifiable(t2.combinators, type$.CssValue_Combinator), t4));
+        t4 = A.ComplexSelector$(complex.leadingCombinators, t3, t4, complex.lineBreak);
+        return t4;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace(error.withAdditionalSpan$2(_this.parentSelector.span, "parent selector"), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    $signature: 57
+  };
+  A.SelectorList_withAdditionalCombinators_closure.prototype = {
+    call$1(complex) {
+      return complex.withAdditionalCombinators$1(this.combinators);
+    },
+    $signature: 57
+  };
+  A._ParentSelectorVisitor.prototype = {
+    visitParentSelector$1(selector) {
+      return selector;
+    }
+  };
+  A.__ParentSelectorVisitor_Object_SelectorSearchVisitor.prototype = {};
+  A.ParentSelector.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitParentSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unify$1(compound) {
+      return A.throwExpression(A.UnsupportedError$("& doesn't support unification."));
+    }
+  };
+  A.PlaceholderSelector.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitPlaceholderSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      return new A.PlaceholderSelector(this.name + suffix, this.span);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.PlaceholderSelector && other.name === this.name;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    }
+  };
+  A.PseudoSelector.prototype = {
+    get$isHostContext() {
+      return this.isClass && this.name === "host-context" && this.selector != null;
+    },
+    get$specificity() {
+      var result, _this = this,
+        value = _this.__PseudoSelector_specificity_FI;
+      if (value === $) {
+        result = new A.PseudoSelector_specificity_closure(_this).call$0();
+        _this.__PseudoSelector_specificity_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__PseudoSelector_specificity_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    withSelector$1(selector) {
+      var _this = this;
+      return A.PseudoSelector$(_this.name, _this.span, _this.argument, !_this.isClass, selector);
+    },
+    addSuffix$1(suffix) {
+      var _this = this;
+      if (_this.argument != null || _this.selector != null)
+        _this.super$SimpleSelector$addSuffix(suffix);
+      return A.PseudoSelector$(_this.name + suffix, _this.span, null, !_this.isClass, null);
+    },
+    unify$1(compound) {
+      var other, result, t2, addedThis, _i, simple, _this = this,
+        t1 = _this.name;
+      if (t1 === "host" || t1 === "host-context") {
+        if (!B.JSArray_methods.every$1(compound, new A.PseudoSelector_unify_closure()))
+          return null;
+      } else {
+        if (compound.length === 1) {
+          other = compound[0];
+          if (!(other instanceof A.UniversalSelector))
+            if (other instanceof A.PseudoSelector)
+              t1 = other.isClass && other.name === "host" || other.get$isHostContext();
+            else
+              t1 = false;
+          else
+            t1 = true;
+        } else {
+          other = null;
+          t1 = false;
+        }
+        if (t1)
+          return other.unify$1(A._setArrayType([_this], type$.JSArray_SimpleSelector));
+      }
+      if (B.JSArray_methods.contains$1(compound, _this))
+        return compound;
+      result = A._setArrayType([], type$.JSArray_SimpleSelector);
+      for (t1 = compound.length, t2 = !_this.isClass, addedThis = false, _i = 0; _i < compound.length; compound.length === t1 || (0, A.throwConcurrentModificationError)(compound), ++_i) {
+        simple = compound[_i];
+        if (simple instanceof A.PseudoSelector && !simple.isClass) {
+          if (t2)
+            return null;
+          result.push(_this);
+          addedThis = true;
+        }
+        result.push(simple);
+      }
+      if (!addedThis)
+        result.push(_this);
+      return result;
+    },
+    isSuperselector$1(other) {
+      var selector, t1, t2, _this = this;
+      if (_this.super$SimpleSelector$isSuperselector(other))
+        return true;
+      selector = _this.selector;
+      if (selector == null)
+        return _this.$eq(0, other);
+      if (other instanceof A.PseudoSelector && !_this.isClass && !other.isClass && _this.normalizedName === "slotted" && other.name === _this.name) {
+        t1 = A.NullableExtension_andThen(other.selector, selector.get$isSuperselector());
+        return t1 == null ? false : t1;
+      }
+      t1 = type$.JSArray_SimpleSelector;
+      t2 = _this.span;
+      return A.compoundIsSuperselector(A.CompoundSelector$(A._setArrayType([_this], t1), t2), A.CompoundSelector$(A._setArrayType([other], t1), t2), null);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitPseudoSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.PseudoSelector && other.name === _this.name && other.isClass === _this.isClass && other.argument == _this.argument && J.$eq$(other.selector, _this.selector);
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = B.JSString_methods.get$hashCode(_this.name),
+        t2 = !_this.isClass ? 519018 : 218159;
+      return t1 ^ t2 ^ J.get$hashCode$(_this.argument) ^ J.get$hashCode$(_this.selector);
+    }
+  };
+  A.PseudoSelector_specificity_closure.prototype = {
+    call$0() {
+      var selector, t2,
+        t1 = this.$this;
+      if (!t1.isClass)
+        return 1;
+      selector = t1.selector;
+      if (selector == null)
+        return A.SimpleSelector.prototype.get$specificity.call(t1);
+      switch (t1.normalizedName) {
+        case "where":
+          return 0;
+        case "is":
+        case "not":
+        case "has":
+        case "matches":
+          t1 = selector.components;
+          return A.IterableIntegerExtension_get_max(new A.MappedListIterable(t1, new A.PseudoSelector_specificity__closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,int>")));
+        case "nth-child":
+        case "nth-last-child":
+          t1 = A.SimpleSelector.prototype.get$specificity.call(t1);
+          t2 = selector.components;
+          return t1 + A.IterableIntegerExtension_get_max(new A.MappedListIterable(t2, new A.PseudoSelector_specificity__closure0(), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,int>")));
+        default:
+          return A.SimpleSelector.prototype.get$specificity.call(t1);
+      }
+    },
+    $signature: 10
+  };
+  A.PseudoSelector_specificity__closure.prototype = {
+    call$1(component) {
+      return component.get$specificity();
+    },
+    $signature: 176
+  };
+  A.PseudoSelector_specificity__closure0.prototype = {
+    call$1(component) {
+      return component.get$specificity();
+    },
+    $signature: 176
+  };
+  A.PseudoSelector_unify_closure.prototype = {
+    call$1(simple) {
+      var t1;
+      if (simple instanceof A.PseudoSelector)
+        t1 = simple.isClass && simple.name === "host" || simple.selector != null;
+      else
+        t1 = false;
+      return t1;
+    },
+    $signature: 14
+  };
+  A.QualifiedName.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.QualifiedName && other.name === this.name && other.namespace == this.namespace;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name) ^ J.get$hashCode$(this.namespace);
+    },
+    toString$0(_) {
+      var t1 = this.namespace,
+        t2 = this.name;
+      return t1 == null ? t2 : t1 + "|" + t2;
+    }
+  };
+  A.SimpleSelector.prototype = {
+    get$specificity() {
+      return 1000;
+    },
+    addSuffix$1(suffix) {
+      return A.throwExpression(A.MultiSpanSassException$('Selector "' + this.toString$0(0) + "\" can't have a suffix", this.span, "outer selector", A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String), null));
+    },
+    unify$1(compound) {
+      var other, t1, result, addedThis, _i, simple, _this = this;
+      if (compound.length === 1) {
+        other = compound[0];
+        if (!(other instanceof A.UniversalSelector))
+          if (other instanceof A.PseudoSelector)
+            t1 = other.isClass && other.name === "host" || other.get$isHostContext();
+          else
+            t1 = false;
+        else
+          t1 = true;
+      } else {
+        other = null;
+        t1 = false;
+      }
+      if (t1)
+        return other.unify$1(A._setArrayType([_this], type$.JSArray_SimpleSelector));
+      if (B.JSArray_methods.contains$1(compound, _this))
+        return compound;
+      result = A._setArrayType([], type$.JSArray_SimpleSelector);
+      for (t1 = compound.length, addedThis = false, _i = 0; _i < compound.length; compound.length === t1 || (0, A.throwConcurrentModificationError)(compound), ++_i) {
+        simple = compound[_i];
+        if (!addedThis && simple instanceof A.PseudoSelector) {
+          result.push(_this);
+          addedThis = true;
+        }
+        result.push(simple);
+      }
+      if (!addedThis)
+        result.push(_this);
+      return result;
+    },
+    isSuperselector$1(other) {
+      var list;
+      if (this.$eq(0, other))
+        return true;
+      if (other instanceof A.PseudoSelector && other.isClass) {
+        list = other.selector;
+        if (list != null && $._subselectorPseudos.contains$1(0, other.normalizedName))
+          return B.JSArray_methods.every$1(list.components, new A.SimpleSelector_isSuperselector_closure(this));
+      }
+      return false;
+    }
+  };
+  A.SimpleSelector_isSuperselector_closure.prototype = {
+    call$1(complex) {
+      var t1 = complex.components;
+      return t1.length !== 0 && B.JSArray_methods.any$1(B.JSArray_methods.get$last(t1).selector.components, new A.SimpleSelector_isSuperselector__closure(this.$this));
+    },
+    $signature: 16
+  };
+  A.SimpleSelector_isSuperselector__closure.prototype = {
+    call$1(simple) {
+      return this.$this.isSuperselector$1(simple);
+    },
+    $signature: 14
+  };
+  A.TypeSelector.prototype = {
+    get$specificity() {
+      return 1;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitTypeSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      var t1 = this.name;
+      return new A.TypeSelector(new A.QualifiedName(t1.name + suffix, t1.namespace), this.span);
+    },
+    unify$1(compound) {
+      var unified, t1,
+        _0_0 = B.JSArray_methods.get$first(compound);
+      if (_0_0 instanceof A.UniversalSelector || _0_0 instanceof A.TypeSelector) {
+        unified = A.unifyUniversalAndElement(this, B.JSArray_methods.get$first(compound));
+        if (unified == null)
+          return null;
+        t1 = A._setArrayType([unified], type$.JSArray_SimpleSelector);
+        B.JSArray_methods.addAll$1(t1, A.SubListIterable$(compound, 1, null, A._arrayInstanceType(compound)._precomputed1));
+        return t1;
+      } else {
+        t1 = A._setArrayType([this], type$.JSArray_SimpleSelector);
+        B.JSArray_methods.addAll$1(t1, compound);
+        return t1;
+      }
+    },
+    isSuperselector$1(other) {
+      var t1, t2;
+      if (!this.super$SimpleSelector$isSuperselector(other))
+        if (other instanceof A.TypeSelector) {
+          t1 = this.name;
+          t2 = other.name;
+          if (t1.name === t2.name) {
+            t1 = t1.namespace;
+            t1 = t1 === "*" || t1 == t2.namespace;
+          } else
+            t1 = false;
+        } else
+          t1 = false;
+      else
+        t1 = true;
+      return t1;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.TypeSelector && other.name.$eq(0, this.name);
+    },
+    get$hashCode(_) {
+      var t1 = this.name;
+      return B.JSString_methods.get$hashCode(t1.name) ^ J.get$hashCode$(t1.namespace);
+    }
+  };
+  A.UniversalSelector.prototype = {
+    get$specificity() {
+      return 0;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitUniversalSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unify$1(compound) {
+      var _0_4, t1, rest, unified, _this = this, _null = null,
+        _0_1 = compound.length,
+        _0_4_isSet = _0_1 >= 1;
+      if (_0_4_isSet) {
+        _0_4 = compound[0];
+        t1 = _0_4;
+        if (!(t1 instanceof A.UniversalSelector))
+          t1 = _0_4 instanceof A.TypeSelector;
+        else
+          t1 = true;
+        rest = t1 ? B.JSArray_methods.sublist$1(compound, 1) : _null;
+      } else {
+        rest = _null;
+        _0_4 = rest;
+        t1 = false;
+      }
+      if (t1) {
+        unified = A.unifyUniversalAndElement(_this, B.JSArray_methods.get$first(compound));
+        if (unified == null)
+          return _null;
+        t1 = A._setArrayType([unified], type$.JSArray_SimpleSelector);
+        B.JSArray_methods.addAll$1(t1, rest);
+        return t1;
+      }
+      if (_0_1 === 1) {
+        if (_0_4_isSet)
+          t1 = _0_4;
+        else {
+          _0_4 = compound[0];
+          t1 = _0_4;
+          _0_4_isSet = true;
+        }
+        if (t1 instanceof A.PseudoSelector) {
+          t1 = _0_4_isSet ? _0_4 : compound[0];
+          type$.PseudoSelector._as(t1);
+          t1 = t1.isClass && t1.name === "host" || t1.get$isHostContext();
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        return _null;
+      if (_0_1 <= 0)
+        return A._setArrayType([_this], type$.JSArray_SimpleSelector);
+      t1 = _this.namespace;
+      if (t1 == null || t1 === "*")
+        t1 = compound;
+      else {
+        t1 = A._setArrayType([_this], type$.JSArray_SimpleSelector);
+        B.JSArray_methods.addAll$1(t1, compound);
+      }
+      return t1;
+    },
+    isSuperselector$1(other) {
+      var t1 = this.namespace;
+      if (t1 === "*")
+        return true;
+      if (other instanceof A.TypeSelector)
+        return t1 == other.name.namespace;
+      if (other instanceof A.UniversalSelector)
+        return t1 == other.namespace;
+      return t1 == null || this.super$SimpleSelector$isSuperselector(other);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.UniversalSelector && other.namespace == this.namespace;
+    },
+    get$hashCode(_) {
+      return J.get$hashCode$(this.namespace);
+    }
+  };
+  A._compileStylesheet_closure0.prototype = {
+    call$1(url) {
+      var t1;
+      if (url === "") {
+        t1 = this.stylesheet.span;
+        t1 = A.Uri_Uri$dataFromString(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.get$file(t1)._decodedChars, 0, null), 0, null), B.C_Utf8Codec, null).get$_text();
+      } else
+        t1 = this.importCache.sourceMapUrl$1(0, A.Uri_parse(url)).toString$0(0);
+      return t1;
+    },
+    $signature: 5
+  };
+  A.AsyncEnvironment.prototype = {
+    closure$0() {
+      var t4, t5, t6, _this = this,
+        t1 = _this._async_environment$_forwardedModules,
+        t2 = _this._async_environment$_nestedForwardedModules,
+        t3 = _this._async_environment$_variables;
+      t3 = A._setArrayType(t3.slice(0), A._arrayInstanceType(t3));
+      t4 = _this._async_environment$_variableNodes;
+      t4 = A._setArrayType(t4.slice(0), A._arrayInstanceType(t4));
+      t5 = _this._async_environment$_functions;
+      t5 = A._setArrayType(t5.slice(0), A._arrayInstanceType(t5));
+      t6 = _this._async_environment$_mixins;
+      t6 = A._setArrayType(t6.slice(0), A._arrayInstanceType(t6));
+      return A.AsyncEnvironment$_(_this._async_environment$_modules, _this._async_environment$_namespaceNodes, _this._async_environment$_globalModules, _this._async_environment$_importedModules, t1, t2, _this._async_environment$_allModules, t3, t4, t5, t6, _this._async_environment$_content);
+    },
+    forwardModule$2(module, rule) {
+      var view, t1, t2, _this = this,
+        forwardedModules = _this._async_environment$_forwardedModules;
+      if (forwardedModules == null)
+        forwardedModules = _this._async_environment$_forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_AsyncCallable, type$.AstNode);
+      view = A.ForwardedModuleView_ifNecessary(module, rule, type$.AsyncCallable);
+      for (t1 = A.LinkedHashMapKeyIterator$(forwardedModules, forwardedModules.__js_helper$_modifications); t1.moveNext$0();) {
+        t2 = t1.__js_helper$_current;
+        _this._async_environment$_assertNoConflicts$5(view.get$variables(), t2.get$variables(), view, t2, "variable");
+        _this._async_environment$_assertNoConflicts$5(view.get$functions(view), t2.get$functions(t2), view, t2, "function");
+        _this._async_environment$_assertNoConflicts$5(view.get$mixins(), t2.get$mixins(), view, t2, "mixin");
+      }
+      _this._async_environment$_allModules.push(module);
+      forwardedModules.$indexSet(0, view, rule);
+    },
+    _async_environment$_assertNoConflicts$5(newMembers, oldMembers, newModule, oldModule, type) {
+      var larger, smaller, t1, t2, t3, t4, $name, small, large, span;
+      if (newMembers.get$length(newMembers) < oldMembers.get$length(oldMembers)) {
+        larger = oldMembers;
+        smaller = newMembers;
+      } else {
+        larger = newMembers;
+        smaller = oldMembers;
+      }
+      for (t1 = type$.String, t2 = A.MapExtensions_get_pairs(smaller, t1, type$.Object), t2 = t2.get$iterator(t2), t3 = type === "variable"; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        $name = t4._0;
+        small = t4._1;
+        large = larger.$index(0, $name);
+        if (large == null)
+          continue;
+        if (t3 ? newModule.variableIdentity$1($name) === oldModule.variableIdentity$1($name) : J.$eq$(large, small))
+          continue;
+        if (t3)
+          $name = "$" + $name;
+        t2 = this._async_environment$_forwardedModules;
+        if (t2 == null)
+          span = null;
+        else {
+          t2 = t2.$index(0, oldModule);
+          span = t2 == null ? null : J.get$span$z(t2);
+        }
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, t1);
+        if (span != null)
+          t2.$indexSet(0, span, "original @forward");
+        throw A.wrapException(A.MultiSpanSassScriptException$("Two forwarded modules both define a " + type + " named " + $name + ".", "new @forward", t2));
+      }
+    },
+    importForwards$1(module) {
+      var forwardedModules, t1, t2, t3, t4, node, t5, t6, t7, t8, t9, t10, _i, t11, shadowed, _length, _list, _this = this,
+        forwarded = module._async_environment$_environment._async_environment$_forwardedModules;
+      if (forwarded == null)
+        return;
+      forwardedModules = _this._async_environment$_forwardedModules;
+      if (forwardedModules != null) {
+        t1 = type$.Module_AsyncCallable;
+        t2 = type$.AstNode;
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t1 = A.MapExtensions_get_pairs(forwarded, t1, t2), t1 = t1.get$iterator(t1), t2 = _this._async_environment$_globalModules; t1.moveNext$0();) {
+          t4 = t1.get$current(t1);
+          module = t4._0;
+          node = t4._1;
+          if (!forwardedModules.containsKey$1(module) || !t2.containsKey$1(module))
+            t3.$indexSet(0, module, node);
+        }
+        forwarded = t3;
+      } else
+        forwardedModules = _this._async_environment$_forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_AsyncCallable, type$.AstNode);
+      t1 = type$.String;
+      t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t3 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t3.moveNext$0();)
+        for (t4 = t3.__js_helper$_current.get$variables(), t4 = J.get$iterator$ax(t4.get$keys(t4)); t4.moveNext$0();)
+          t2.add$1(0, t4.get$current(t4));
+      t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();) {
+        t5 = t4.__js_helper$_current;
+        for (t5 = t5.get$functions(t5), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t3.add$1(0, t5.get$current(t5));
+      }
+      t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();)
+        for (t5 = t4.__js_helper$_current.get$mixins(), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t1.add$1(0, t5.get$current(t5));
+      t4 = _this._async_environment$_variables;
+      t5 = t4.length;
+      if (t5 === 1) {
+        for (t5 = _this._async_environment$_importedModules, t6 = type$.Module_AsyncCallable, t7 = type$.AstNode, t8 = A.MapExtensions_get_pairs(t5, t6, t7).toList$0(0), t9 = t8.length, t10 = type$.AsyncCallable, _i = 0; _i < t8.length; t8.length === t9 || (0, A.throwConcurrentModificationError)(t8), ++_i) {
+          t11 = t8[_i];
+          module = t11._0;
+          node = t11._1;
+          shadowed = A.ShadowedModuleView_ifNecessary(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            t5.remove$1(0, module);
+            t11 = shadowed.variables;
+            if (t11.get$isEmpty(t11)) {
+              t11 = shadowed.functions;
+              if (t11.get$isEmpty(t11)) {
+                t11 = shadowed.mixins;
+                if (t11.get$isEmpty(t11)) {
+                  t11 = shadowed._shadowed_view$_inner;
+                  t11 = t11.get$css(t11);
+                  t11 = J.get$isEmpty$asx(t11.get$children(t11));
+                } else
+                  t11 = false;
+              } else
+                t11 = false;
+            } else
+              t11 = false;
+            if (!t11)
+              t5.$indexSet(0, shadowed, node);
+          }
+        }
+        for (t6 = A.MapExtensions_get_pairs(forwardedModules, t6, t7).toList$0(0), t7 = t6.length, _i = 0; _i < t6.length; t6.length === t7 || (0, A.throwConcurrentModificationError)(t6), ++_i) {
+          t8 = t6[_i];
+          module = t8._0;
+          node = t8._1;
+          shadowed = A.ShadowedModuleView_ifNecessary(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            forwardedModules.remove$1(0, module);
+            t8 = shadowed.variables;
+            if (t8.get$isEmpty(t8)) {
+              t8 = shadowed.functions;
+              if (t8.get$isEmpty(t8)) {
+                t8 = shadowed.mixins;
+                if (t8.get$isEmpty(t8)) {
+                  t8 = shadowed._shadowed_view$_inner;
+                  t8 = t8.get$css(t8);
+                  t8 = J.get$isEmpty$asx(t8.get$children(t8));
+                } else
+                  t8 = false;
+              } else
+                t8 = false;
+            } else
+              t8 = false;
+            if (!t8)
+              forwardedModules.$indexSet(0, shadowed, node);
+          }
+        }
+        t5.addAll$1(0, forwarded);
+        forwardedModules.addAll$1(0, forwarded);
+      } else {
+        t6 = _this._async_environment$_nestedForwardedModules;
+        if (t6 == null) {
+          _length = t5 - 1;
+          _list = J.JSArray_JSArray$allocateGrowable(_length, type$.List_Module_AsyncCallable);
+          for (t5 = type$.JSArray_Module_AsyncCallable, _i = 0; _i < _length; ++_i)
+            _list[_i] = A._setArrayType([], t5);
+          _this._async_environment$_nestedForwardedModules = _list;
+          t5 = _list;
+        } else
+          t5 = t6;
+        B.JSArray_methods.addAll$1(B.JSArray_methods.get$last(t5), new A.LinkedHashMapKeyIterable(forwarded, A._instanceType(forwarded)._eval$1("LinkedHashMapKeyIterable<1>")));
+      }
+      for (t2 = A._LinkedHashSetIterator$(t2, t2._modifications, t2.$ti._precomputed1), t5 = _this._async_environment$_variableIndices, t6 = _this._async_environment$_variableNodes, t7 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t8 = t2._collection$_current;
+        if (t8 == null)
+          t8 = t7._as(t8);
+        t5.remove$1(0, t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t6), t8);
+      }
+      for (t2 = A._LinkedHashSetIterator$(t3, t3._modifications, t3.$ti._precomputed1), t3 = _this._async_environment$_functionIndices, t4 = _this._async_environment$_functions, t5 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t6 = t2._collection$_current;
+        if (t6 == null)
+          t6 = t5._as(t6);
+        t3.remove$1(0, t6);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t6);
+      }
+      for (t1 = A._LinkedHashSetIterator$(t1, t1._modifications, t1.$ti._precomputed1), t2 = _this._async_environment$_mixinIndices, t3 = _this._async_environment$_mixins, t4 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t5 = t1._collection$_current;
+        if (t5 == null)
+          t5 = t4._as(t5);
+        t2.remove$1(0, t5);
+        J.remove$1$z(B.JSArray_methods.get$last(t3), t5);
+      }
+    },
+    getVariable$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._async_environment$_getModule$1(namespace).get$variables().$index(0, $name);
+      if (_this._async_environment$_lastVariableName === $name) {
+        t1 = _this._async_environment$_lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._async_environment$_variables[t1], $name);
+        return t1 == null ? _this._async_environment$_getVariableFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._async_environment$_variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._async_environment$_lastVariableName = $name;
+        _this._async_environment$_lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._async_environment$_variables[_0_0], $name);
+        return t1 == null ? _this._async_environment$_getVariableFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment$_variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._async_environment$_lastVariableName = $name;
+          _this._async_environment$_lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment$_variables[_1_0], $name);
+          return t1 == null ? _this._async_environment$_getVariableFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment$_getVariableFromGlobalModule$1($name);
+      }
+    },
+    getVariable$1($name) {
+      return this.getVariable$2$namespace($name, null);
+    },
+    _async_environment$_getVariableFromGlobalModule$1($name) {
+      return this._async_environment$_fromOneModule$3($name, "variable", new A.AsyncEnvironment__getVariableFromGlobalModule_closure($name));
+    },
+    getVariableNode$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._async_environment$_getModule$1(namespace).get$variableNodes().$index(0, $name);
+      if (_this._async_environment$_lastVariableName === $name) {
+        t1 = _this._async_environment$_lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._async_environment$_variableNodes[t1], $name);
+        return t1 == null ? _this._async_environment$_getVariableNodeFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._async_environment$_variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._async_environment$_lastVariableName = $name;
+        _this._async_environment$_lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._async_environment$_variableNodes[_0_0], $name);
+        return t1 == null ? _this._async_environment$_getVariableNodeFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment$_variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._async_environment$_lastVariableName = $name;
+          _this._async_environment$_lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment$_variableNodes[_1_0], $name);
+          return t1 == null ? _this._async_environment$_getVariableNodeFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment$_getVariableNodeFromGlobalModule$1($name);
+      }
+    },
+    _async_environment$_getVariableNodeFromGlobalModule$1($name) {
+      var t1, t2, _0_0;
+      for (t1 = this._async_environment$_importedModules, t2 = this._async_environment$_globalModules, t2 = new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>")).followedBy$1(0, new A.LinkedHashMapKeyIterable(t2, A._instanceType(t2)._eval$1("LinkedHashMapKeyIterable<1>"))), t2 = new A.FollowedByIterator(J.get$iterator$ax(t2.__internal$_first), t2._second); t2.moveNext$0();) {
+        t1 = t2._currentIterator;
+        _0_0 = t1.get$current(t1).get$variableNodes().$index(0, $name);
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    globalVariableExists$2$namespace($name, namespace) {
+      if (namespace != null)
+        return this._async_environment$_getModule$1(namespace).get$variables().containsKey$1($name);
+      if (B.JSArray_methods.get$first(this._async_environment$_variables).containsKey$1($name))
+        return true;
+      return this._async_environment$_getVariableFromGlobalModule$1($name) != null;
+    },
+    globalVariableExists$1($name) {
+      return this.globalVariableExists$2$namespace($name, null);
+    },
+    _async_environment$_variableIndex$1($name) {
+      var t1, i;
+      for (t1 = this._async_environment$_variables, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    setVariable$5$global$namespace($name, value, nodeWithSpan, global, namespace) {
+      var t1, moduleWithName, nestedForwardedModules, t2, t3, t4, t5, index, _this = this;
+      if (namespace != null) {
+        _this._async_environment$_getModule$1(namespace).setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      if (global || _this._async_environment$_variables.length === 1) {
+        _this._async_environment$_variableIndices.putIfAbsent$2($name, new A.AsyncEnvironment_setVariable_closure(_this, $name));
+        t1 = _this._async_environment$_variables;
+        if (!B.JSArray_methods.get$first(t1).containsKey$1($name)) {
+          moduleWithName = _this._async_environment$_fromOneModule$3($name, "variable", new A.AsyncEnvironment_setVariable_closure0($name));
+          if (moduleWithName != null) {
+            moduleWithName.setVariable$3($name, value, nodeWithSpan);
+            return;
+          }
+        }
+        J.$indexSet$ax(B.JSArray_methods.get$first(t1), $name, value);
+        J.$indexSet$ax(B.JSArray_methods.get$first(_this._async_environment$_variableNodes), $name, nodeWithSpan);
+        return;
+      }
+      nestedForwardedModules = _this._async_environment$_nestedForwardedModules;
+      if (nestedForwardedModules != null && !_this._async_environment$_variableIndices.containsKey$1($name) && _this._async_environment$_variableIndex$1($name) == null)
+        for (t1 = A._arrayInstanceType(nestedForwardedModules)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(nestedForwardedModules, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            if (t5 == null)
+              t5 = t4._as(t5);
+            if (t5.get$variables().containsKey$1($name)) {
+              t5.setVariable$3($name, value, nodeWithSpan);
+              return;
+            }
+          }
+        }
+      if (_this._async_environment$_lastVariableName === $name) {
+        t1 = _this._async_environment$_lastVariableIndex;
+        t1.toString;
+        index = t1;
+      } else
+        index = _this._async_environment$_variableIndices.putIfAbsent$2($name, new A.AsyncEnvironment_setVariable_closure1(_this, $name));
+      if (!_this._async_environment$_inSemiGlobalScope && index === 0) {
+        index = _this._async_environment$_variables.length - 1;
+        _this._async_environment$_variableIndices.$indexSet(0, $name, index);
+      }
+      _this._async_environment$_lastVariableName = $name;
+      _this._async_environment$_lastVariableIndex = index;
+      J.$indexSet$ax(_this._async_environment$_variables[index], $name, value);
+      J.$indexSet$ax(_this._async_environment$_variableNodes[index], $name, nodeWithSpan);
+    },
+    setVariable$4$global($name, value, nodeWithSpan, global) {
+      return this.setVariable$5$global$namespace($name, value, nodeWithSpan, global, null);
+    },
+    setLocalVariable$3($name, value, nodeWithSpan) {
+      var index, _this = this,
+        t1 = _this._async_environment$_variables,
+        t2 = t1.length;
+      _this._async_environment$_lastVariableName = $name;
+      index = _this._async_environment$_lastVariableIndex = t2 - 1;
+      _this._async_environment$_variableIndices.$indexSet(0, $name, index);
+      J.$indexSet$ax(t1[index], $name, value);
+      J.$indexSet$ax(_this._async_environment$_variableNodes[index], $name, nodeWithSpan);
+    },
+    getFunction$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null) {
+        t1 = _this._async_environment$_getModule$1(namespace);
+        return t1.get$functions(t1).$index(0, $name);
+      }
+      t1 = _this._async_environment$_functionIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._async_environment$_functions[_0_0], $name);
+        return t1 == null ? _this._async_environment$_getFunctionFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment$_functionIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment$_functions[_1_0], $name);
+          return t1 == null ? _this._async_environment$_getFunctionFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment$_getFunctionFromGlobalModule$1($name);
+      }
+    },
+    getFunction$1($name) {
+      return this.getFunction$2$namespace($name, null);
+    },
+    _async_environment$_getFunctionFromGlobalModule$1($name) {
+      return this._async_environment$_fromOneModule$3($name, "function", new A.AsyncEnvironment__getFunctionFromGlobalModule_closure($name));
+    },
+    _async_environment$_functionIndex$1($name) {
+      var t1, i;
+      for (t1 = this._async_environment$_functions, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    getMixin$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._async_environment$_getModule$1(namespace).get$mixins().$index(0, $name);
+      t1 = _this._async_environment$_mixinIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._async_environment$_mixins[_0_0], $name);
+        return t1 == null ? _this._async_environment$_getMixinFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment$_mixinIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment$_mixins[_1_0], $name);
+          return t1 == null ? _this._async_environment$_getMixinFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment$_getMixinFromGlobalModule$1($name);
+      }
+    },
+    _async_environment$_getMixinFromGlobalModule$1($name) {
+      return this._async_environment$_fromOneModule$3($name, "mixin", new A.AsyncEnvironment__getMixinFromGlobalModule_closure($name));
+    },
+    _async_environment$_mixinIndex$1($name) {
+      var t1, i;
+      for (t1 = this._async_environment$_mixins, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    withContent$2($content, callback) {
+      return this.withContent$body$AsyncEnvironment($content, callback);
+    },
+    withContent$body$AsyncEnvironment($content, callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, oldContent;
+      var $async$withContent$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldContent = $async$self._async_environment$_content;
+              $async$self._async_environment$_content = $content;
+              $async$goto = 2;
+              return A._asyncAwait(callback.call$0(), $async$withContent$2);
+            case 2:
+              // returning from await.
+              $async$self._async_environment$_content = oldContent;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$withContent$2, $async$completer);
+    },
+    asMixin$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, oldInMixin;
+      var $async$asMixin$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldInMixin = $async$self._async_environment$_inMixin;
+              $async$self._async_environment$_inMixin = true;
+              $async$goto = 2;
+              return A._asyncAwait(callback.call$0(), $async$asMixin$1);
+            case 2:
+              // returning from await.
+              $async$self._async_environment$_inMixin = oldInMixin;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$asMixin$1, $async$completer);
+    },
+    scope$1$3$semiGlobal$when(callback, semiGlobal, when, $T) {
+      return this.scope$body$AsyncEnvironment(callback, semiGlobal, when, $T, $T);
+    },
+    scope$1$1(callback, $T) {
+      return this.scope$1$3$semiGlobal$when(callback, false, true, $T);
+    },
+    scope$1$2$when(callback, when, $T) {
+      return this.scope$1$3$semiGlobal$when(callback, false, when, $T);
+    },
+    scope$1$2$semiGlobal(callback, semiGlobal, $T) {
+      return this.scope$1$3$semiGlobal$when(callback, semiGlobal, true, $T);
+    },
+    scope$body$AsyncEnvironment(callback, semiGlobal, when, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, wasInSemiGlobalScope, $name, name0, name1, t1, t2, t3, t4, t5, t6;
+      var $async$scope$1$3$semiGlobal$when = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              semiGlobal = semiGlobal && $async$self._async_environment$_inSemiGlobalScope;
+              wasInSemiGlobalScope = $async$self._async_environment$_inSemiGlobalScope;
+              $async$self._async_environment$_inSemiGlobalScope = semiGlobal;
+              $async$goto = !when ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$handler = 5;
+              $async$goto = 8;
+              return A._asyncAwait(callback.call$0(), $async$scope$1$3$semiGlobal$when);
+            case 8:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              $async$next = [1];
+              // goto finally
+              $async$goto = 6;
+              break;
+              $async$next.push(7);
+              // goto finally
+              $async$goto = 6;
+              break;
+            case 5:
+              // uncaught
+              $async$next = [2];
+            case 6:
+              // finally
+              $async$handler = 2;
+              $async$self._async_environment$_inSemiGlobalScope = wasInSemiGlobalScope;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 7:
+              // after finally
+            case 4:
+              // join
+              t1 = $async$self._async_environment$_variables;
+              t2 = type$.String;
+              B.JSArray_methods.add$1(t1, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.Value));
+              t3 = $async$self._async_environment$_variableNodes;
+              B.JSArray_methods.add$1(t3, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.AstNode));
+              t4 = $async$self._async_environment$_functions;
+              t5 = type$.AsyncCallable;
+              B.JSArray_methods.add$1(t4, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+              t6 = $async$self._async_environment$_mixins;
+              B.JSArray_methods.add$1(t6, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+              t5 = $async$self._async_environment$_nestedForwardedModules;
+              if (t5 != null)
+                t5.push(A._setArrayType([], type$.JSArray_Module_AsyncCallable));
+              $async$handler = 9;
+              $async$goto = 12;
+              return A._asyncAwait(callback.call$0(), $async$scope$1$3$semiGlobal$when);
+            case 12:
+              // returning from await.
+              t2 = $async$result;
+              $async$returnValue = t2;
+              $async$next = [1];
+              // goto finally
+              $async$goto = 10;
+              break;
+              $async$next.push(11);
+              // goto finally
+              $async$goto = 10;
+              break;
+            case 9:
+              // uncaught
+              $async$next = [2];
+            case 10:
+              // finally
+              $async$handler = 2;
+              $async$self._async_environment$_inSemiGlobalScope = wasInSemiGlobalScope;
+              $async$self._async_environment$_lastVariableIndex = $async$self._async_environment$_lastVariableName = null;
+              for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t1))), t2 = $async$self._async_environment$_variableIndices; t1.moveNext$0();) {
+                $name = t1.get$current(t1);
+                t2.remove$1(0, $name);
+              }
+              B.JSArray_methods.removeLast$0(t3);
+              for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t4))), t2 = $async$self._async_environment$_functionIndices; t1.moveNext$0();) {
+                name0 = t1.get$current(t1);
+                t2.remove$1(0, name0);
+              }
+              for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t6))), t2 = $async$self._async_environment$_mixinIndices; t1.moveNext$0();) {
+                name1 = t1.get$current(t1);
+                t2.remove$1(0, name1);
+              }
+              t1 = $async$self._async_environment$_nestedForwardedModules;
+              if (t1 != null)
+                t1.pop();
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 11:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$scope$1$3$semiGlobal$when, $async$completer);
+    },
+    toImplicitConfiguration$0() {
+      var t2, t3, t4, i, values, nodes, t5, t6, $name, value,
+        t1 = type$.String,
+        configuration = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.ConfiguredValue);
+      for (t2 = this._async_environment$_variables, t3 = type$.Value, t4 = this._async_environment$_variableNodes, i = 0; i < t2.length; ++i) {
+        values = t2[i];
+        nodes = t4[i];
+        for (t5 = A.MapExtensions_get_pairs(values, t1, t3), t5 = t5.get$iterator(t5); t5.moveNext$0();) {
+          t6 = t5.get$current(t5);
+          $name = t6._0;
+          value = t6._1;
+          t6 = nodes.$index(0, $name);
+          t6.toString;
+          configuration.$indexSet(0, $name, new A.ConfiguredValue(value, null, t6));
+        }
+      }
+      return new A.Configuration(configuration, null);
+    },
+    toModule$3(css, preModuleComments, extensionStore) {
+      return A._EnvironmentModule__EnvironmentModule0(this, css, preModuleComments, extensionStore, A.NullableExtension_andThen(this._async_environment$_forwardedModules, new A.AsyncEnvironment_toModule_closure()));
+    },
+    toDummyModule$0() {
+      return A._EnvironmentModule__EnvironmentModule0(this, new A.CssStylesheet(new A.UnmodifiableListView(B.List_empty3, type$.UnmodifiableListView_CssNode), A.SourceFile$decoded(B.List_empty4, "<dummy module>").span$1(0, 0)), B.Map_empty7, B.C_EmptyExtensionStore, A.NullableExtension_andThen(this._async_environment$_forwardedModules, new A.AsyncEnvironment_toDummyModule_closure()));
+    },
+    _async_environment$_getModule$1(namespace) {
+      var _0_0 = this._async_environment$_modules.$index(0, namespace);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$('There is no module with the namespace "' + namespace + '".', null));
+    },
+    _async_environment$_fromOneModule$1$3($name, type, callback) {
+      var t1, t2, t3, t4, t5, _1_0, _2_0, value, identity, valueInModule, identityFromModule, module, node,
+        _0_0 = this._async_environment$_nestedForwardedModules;
+      if (_0_0 != null)
+        for (t1 = A._arrayInstanceType(_0_0)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(_0_0, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            _1_0 = callback.call$1(t5 == null ? t4._as(t5) : t5);
+            if (_1_0 != null)
+              return _1_0;
+          }
+        }
+      for (t1 = this._async_environment$_importedModules, t1 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications); t1.moveNext$0();) {
+        _2_0 = callback.call$1(t1.__js_helper$_current);
+        if (_2_0 != null)
+          return _2_0;
+      }
+      for (t1 = this._async_environment$_globalModules, t2 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications), t3 = type$.AsyncCallable, value = null, identity = null; t2.moveNext$0();) {
+        t4 = t2.__js_helper$_current;
+        valueInModule = callback.call$1(t4);
+        if (valueInModule == null)
+          continue;
+        identityFromModule = t3._is(valueInModule) ? valueInModule : t4.variableIdentity$1($name);
+        if (identityFromModule.$eq(0, identity))
+          continue;
+        if (value != null) {
+          t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          for (t3 = A.MapExtensions_get_pairs(t1, type$.Module_AsyncCallable, type$.AstNode), t3 = t3.get$iterator(t3), t4 = "includes " + type; t3.moveNext$0();) {
+            t1 = t3.get$current(t3);
+            module = t1._0;
+            node = t1._1;
+            if (callback.call$1(module) != null)
+              t2.$indexSet(0, node.get$span(node), t4);
+          }
+          throw A.wrapException(A.MultiSpanSassScriptException$("This " + type + string$.x20is_av, type + " use", t2));
+        }
+        identity = identityFromModule;
+        value = valueInModule;
+      }
+      return value;
+    },
+    _async_environment$_fromOneModule$3($name, type, callback) {
+      return this._async_environment$_fromOneModule$1$3($name, type, callback, type$.dynamic);
+    }
+  };
+  A.AsyncEnvironment__getVariableFromGlobalModule_closure.prototype = {
+    call$1(module) {
+      return module.get$variables().$index(0, this.name);
+    },
+    $signature: 318
+  };
+  A.AsyncEnvironment_setVariable_closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._async_environment$_lastVariableName = this.name;
+      return t1._async_environment$_lastVariableIndex = 0;
+    },
+    $signature: 10
+  };
+  A.AsyncEnvironment_setVariable_closure0.prototype = {
+    call$1(module) {
+      return module.get$variables().containsKey$1(this.name) ? module : null;
+    },
+    $signature: 317
+  };
+  A.AsyncEnvironment_setVariable_closure1.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._async_environment$_variableIndex$1(this.name);
+      return t2 == null ? t1._async_environment$_variables.length - 1 : t2;
+    },
+    $signature: 10
+  };
+  A.AsyncEnvironment__getFunctionFromGlobalModule_closure.prototype = {
+    call$1(module) {
+      return module.get$functions(module).$index(0, this.name);
+    },
+    $signature: 178
+  };
+  A.AsyncEnvironment__getMixinFromGlobalModule_closure.prototype = {
+    call$1(module) {
+      return module.get$mixins().$index(0, this.name);
+    },
+    $signature: 178
+  };
+  A.AsyncEnvironment_toModule_closure.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_AsyncCallable);
+    },
+    $signature: 179
+  };
+  A.AsyncEnvironment_toDummyModule_closure.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_AsyncCallable);
+    },
+    $signature: 179
+  };
+  A._EnvironmentModule0.prototype = {
+    get$url(_) {
+      var t1 = this.css;
+      t1 = t1.get$span(t1);
+      return t1.get$sourceUrl(t1);
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      var t1, t2,
+        _0_0 = this._async_environment$_modulesByVariable.$index(0, $name);
+      if (_0_0 != null) {
+        _0_0.setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      t1 = this._async_environment$_environment;
+      t2 = t1._async_environment$_variables;
+      if (!B.JSArray_methods.get$first(t2).containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$("Undefined variable.", null));
+      J.$indexSet$ax(B.JSArray_methods.get$first(t2), $name, value);
+      J.$indexSet$ax(B.JSArray_methods.get$first(t1._async_environment$_variableNodes), $name, nodeWithSpan);
+      return;
+    },
+    variableIdentity$1($name) {
+      var module = this._async_environment$_modulesByVariable.$index(0, $name);
+      return module == null ? this : module.variableIdentity$1($name);
+    },
+    cloneCss$0() {
+      var _0_0, _this = this;
+      if (!_this.transitivelyContainsCss)
+        return _this;
+      _0_0 = A.cloneCssStylesheet(_this.css, _this.extensionStore);
+      return A._EnvironmentModule$_0(_this._async_environment$_environment, _0_0._0, _this.preModuleComments, _0_0._1, _this._async_environment$_modulesByVariable, _this.variables, _this.variableNodes, _this.functions, _this.mixins, true, _this.transitivelyContainsExtensions);
+    },
+    toString$0(_) {
+      var t1 = this.css,
+        t2 = t1.get$span(t1);
+      if (t2.get$sourceUrl(t2) == null)
+        t1 = "<unknown url>";
+      else {
+        t1 = t1.get$span(t1);
+        t1 = t1.get$sourceUrl(t1);
+        t2 = $.$get$context();
+        t1.toString;
+        t1 = t2.prettyUri$1(t1);
+      }
+      return t1;
+    },
+    $isModule0: 1,
+    get$upstream() {
+      return this.upstream;
+    },
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    },
+    get$extensionStore() {
+      return this.extensionStore;
+    },
+    get$css(receiver) {
+      return this.css;
+    },
+    get$preModuleComments() {
+      return this.preModuleComments;
+    },
+    get$transitivelyContainsCss() {
+      return this.transitivelyContainsCss;
+    },
+    get$transitivelyContainsExtensions() {
+      return this.transitivelyContainsExtensions;
+    }
+  };
+  A._EnvironmentModule__EnvironmentModule_closure5.prototype = {
+    call$1(module) {
+      return module.get$variables();
+    },
+    $signature: 313
+  };
+  A._EnvironmentModule__EnvironmentModule_closure6.prototype = {
+    call$1(module) {
+      return module.get$variableNodes();
+    },
+    $signature: 312
+  };
+  A._EnvironmentModule__EnvironmentModule_closure7.prototype = {
+    call$1(module) {
+      return module.get$functions(module);
+    },
+    $signature: 184
+  };
+  A._EnvironmentModule__EnvironmentModule_closure8.prototype = {
+    call$1(module) {
+      return module.get$mixins();
+    },
+    $signature: 184
+  };
+  A._EnvironmentModule__EnvironmentModule_closure9.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 134
+  };
+  A._EnvironmentModule__EnvironmentModule_closure10.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsExtensions();
+    },
+    $signature: 134
+  };
+  A.AsyncImportCache.prototype = {
+    canonicalize$4$baseImporter$baseUrl$forImport(_, url, baseImporter, baseUrl, forImport) {
+      return this.canonicalize$body$AsyncImportCache(0, url, baseImporter, baseUrl, forImport);
+    },
+    canonicalize$body$AsyncImportCache(_, url, baseImporter, baseUrl, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl),
+        $async$returnValue, $async$self = this, t1, resolvedUrl, key, relativeResult, t2, t3, t4, t5, t6, cacheable, i, importer, perImporterKey, t7, _1_0, _1_2_isSet, _1_2, result, _2_0, _2_1, _2_5_isSet, _2_3, _2_5, _2_3_isSet, j;
+      var $async$canonicalize$4$baseImporter$baseUrl$forImport = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (A.isBrowser())
+                t1 = (baseImporter == null || baseImporter instanceof A.NoOpImporter) && $async$self._async_import_cache$_importers.length === 0;
+              else
+                t1 = false;
+              if (t1)
+                throw A.wrapException(string$.Custom);
+              $async$goto = baseImporter != null && url.get$scheme() === "" ? 3 : 4;
+              break;
+            case 3:
+              // then
+              resolvedUrl = baseUrl == null ? null : baseUrl.resolveUri$1(url);
+              if (resolvedUrl == null)
+                resolvedUrl = url;
+              key = new A._Record_3_forImport(baseImporter, resolvedUrl, forImport);
+              $async$goto = 5;
+              return A._asyncAwait(A.putIfAbsentAsync($async$self._async_import_cache$_perImporterCanonicalizeCache, key, new A.AsyncImportCache_canonicalize_closure($async$self, baseImporter, resolvedUrl, baseUrl, forImport, key, url), type$.Record_3_AsyncImporter_and_Uri_and_bool_forImport, type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl), $async$canonicalize$4$baseImporter$baseUrl$forImport);
+            case 5:
+              // returning from await.
+              relativeResult = $async$result;
+              if (relativeResult != null) {
+                $async$returnValue = relativeResult;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // join
+              key = new A._Record_2_forImport(url, forImport);
+              t1 = $async$self._async_import_cache$_canonicalizeCache;
+              if (t1.containsKey$1(key)) {
+                $async$returnValue = t1.$index(0, key);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t2 = $async$self._async_import_cache$_importers, t3 = type$.Record_1_nullable_Object, t4 = $async$self._async_import_cache$_perImporterCanonicalizeCache, t5 = type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl, t6 = type$.Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl, cacheable = true, i = 0;
+            case 6:
+              // for condition
+              if (!(i < t2.length)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              importer = t2[i];
+              perImporterKey = new A._Record_3_forImport(importer, url, forImport);
+              if (t4.containsKey$1(perImporterKey)) {
+                t7 = t4.$index(0, perImporterKey);
+                _1_0 = new A._Record_1(t7 == null ? t5._as(t7) : t7);
+              } else
+                _1_0 = null;
+              _1_2_isSet = t3._is(_1_0);
+              if (_1_2_isSet) {
+                _1_2 = _1_0._0;
+                t7 = _1_2 != null;
+                if (t7) {
+                  t6._as(_1_2);
+                  result = _1_2;
+                } else
+                  result = null;
+              } else {
+                _1_2 = null;
+                result = null;
+                t7 = false;
+              }
+              if (t7) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (_1_2_isSet)
+                t7 = _1_2 == null;
+              else
+                t7 = false;
+              if (t7) {
+                // goto for update
+                $async$goto = 7;
+                break;
+              }
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_import_cache$_canonicalize$4(importer, url, baseUrl, forImport), $async$canonicalize$4$baseImporter$baseUrl$forImport);
+            case 10:
+              // returning from await.
+              _2_0 = $async$result;
+              _2_1 = _2_0._0;
+              _2_5_isSet = _2_1 != null;
+              if (_2_5_isSet) {
+                result = _2_1 == null ? t6._as(_2_1) : _2_1;
+                _2_3 = _2_0._1;
+                t7 = _2_3;
+                _2_5 = t7;
+                t7 = t7 && cacheable;
+              } else {
+                _2_5 = null;
+                _2_3 = null;
+                result = null;
+                t7 = false;
+              }
+              if (t7) {
+                t1.$indexSet(0, key, result);
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (_2_5_isSet) {
+                t7 = _2_5;
+                _2_3_isSet = _2_5_isSet;
+              } else {
+                _2_3 = _2_0._1;
+                t7 = _2_3;
+                _2_3_isSet = true;
+              }
+              t7 = t7 && !cacheable;
+              if (t7) {
+                t4.$indexSet(0, perImporterKey, _2_1);
+                if (_2_1 != null) {
+                  $async$returnValue = _2_1;
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+                // goto break $label0$1
+                $async$goto = 9;
+                break;
+              }
+              t7 = false === (_2_3_isSet ? _2_3 : _2_0._1);
+              if (t7) {
+                if (cacheable) {
+                  for (j = 0; j < i; ++j)
+                    t4.$indexSet(0, new A._Record_3_forImport(t2[j], url, forImport), null);
+                  cacheable = false;
+                }
+                if (_2_1 != null) {
+                  $async$returnValue = _2_1;
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+              }
+            case 9:
+              // break $label0$1
+            case 7:
+              // for update
+              ++i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+              if (cacheable)
+                t1.$indexSet(0, key, null);
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$canonicalize$4$baseImporter$baseUrl$forImport, $async$completer);
+    },
+    _async_import_cache$_canonicalize$4(importer, url, baseUrl, forImport) {
+      return this._canonicalize$body$AsyncImportCache(importer, url, baseUrl, forImport);
+    },
+    _canonicalize$body$AsyncImportCache(importer, url, baseUrl, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_and_bool),
+        $async$returnValue, $async$self = this, t1, passContainingUrl, canonicalizeContext, result, cacheable;
+      var $async$_async_import_cache$_canonicalize$4 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = baseUrl != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = url.get$scheme() !== "" ? 6 : 8;
+              break;
+            case 6:
+              // then
+              t1 = A._Future$value(importer.isNonCanonicalScheme$1(url.get$scheme()), type$.bool);
+              $async$goto = 9;
+              return A._asyncAwait(t1, $async$_async_import_cache$_canonicalize$4);
+            case 9:
+              // returning from await.
+              t1 = $async$result;
+              passContainingUrl = t1;
+              // goto join
+              $async$goto = 7;
+              break;
+            case 8:
+              // else
+              passContainingUrl = true;
+            case 7:
+              // join
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              passContainingUrl = false;
+            case 4:
+              // join
+              canonicalizeContext = new A.CanonicalizeContext(forImport, passContainingUrl ? baseUrl : null);
+              t1 = type$.nullable_Object;
+              t1 = A.runZoned(new A.AsyncImportCache__canonicalize_closure(importer, url), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__canonicalizeContext, canonicalizeContext], t1, t1), type$.FutureOr_nullable_Uri);
+              $async$goto = 10;
+              return A._asyncAwait(type$.Future_nullable_Uri._is(t1) ? t1 : A._Future$value(t1, type$.nullable_Uri), $async$_async_import_cache$_canonicalize$4);
+            case 10:
+              // returning from await.
+              result = $async$result;
+              cacheable = !passContainingUrl || !canonicalizeContext._wasContainingUrlAccessed;
+              if (result == null) {
+                $async$returnValue = new A._Record_2(null, cacheable);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = result.get$scheme() === "" ? 11 : 13;
+              break;
+            case 11:
+              // then
+              A.WarnForDeprecation_warnForDeprecation($async$self._async_import_cache$_logger, B.Deprecation_IMm, "Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2e_Rela, null, null);
+              // goto join
+              $async$goto = 12;
+              break;
+            case 13:
+              // else
+              t1 = A._Future$value(importer.isNonCanonicalScheme$1(result.get$scheme()), type$.bool);
+              $async$goto = 14;
+              return A._asyncAwait(t1, $async$_async_import_cache$_canonicalize$4);
+            case 14:
+              // returning from await.
+              if ($async$result)
+                throw A.wrapException("Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2c_whicu);
+            case 12:
+              // join
+              $async$returnValue = new A._Record_2(new A._Record_3_originalUrl(importer, result, url), cacheable);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_import_cache$_canonicalize$4, $async$completer);
+    },
+    importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, quiet) {
+      return this.importCanonical$body$AsyncImportCache(importer, canonicalUrl, originalUrl, quiet);
+    },
+    importCanonical$3$originalUrl(importer, canonicalUrl, originalUrl) {
+      return this.importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, false);
+    },
+    importCanonical$body$AsyncImportCache(importer, canonicalUrl, originalUrl, quiet) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Stylesheet),
+        $async$returnValue, $async$self = this;
+      var $async$importCanonical$4$originalUrl$quiet = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait(A.putIfAbsentAsync($async$self._async_import_cache$_importCache, canonicalUrl, new A.AsyncImportCache_importCanonical_closure($async$self, importer, canonicalUrl, originalUrl, quiet), type$.Uri, type$.nullable_Stylesheet), $async$importCanonical$4$originalUrl$quiet);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$importCanonical$4$originalUrl$quiet, $async$completer);
+    },
+    humanize$1(canonicalUrl) {
+      var t1 = A.IterableNullableExtension_whereNotNull(this._async_import_cache$_canonicalizeCache.get$values(0), type$.Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl),
+        t2 = t1.$ti;
+      t2 = A.NullableExtension_andThen(A.minBy(new A.MappedIterable(new A.WhereIterable(t1, new A.AsyncImportCache_humanize_closure(canonicalUrl), t2._eval$1("WhereIterable<Iterable.E>")), new A.AsyncImportCache_humanize_closure0(), t2._eval$1("MappedIterable<Iterable.E,Uri>")), new A.AsyncImportCache_humanize_closure1()), new A.AsyncImportCache_humanize_closure2(canonicalUrl));
+      return t2 == null ? canonicalUrl : t2;
+    },
+    sourceMapUrl$1(_, canonicalUrl) {
+      var t1 = this._async_import_cache$_resultsCache.$index(0, canonicalUrl);
+      t1 = t1 == null ? null : t1.get$sourceMapUrl(0);
+      return t1 == null ? canonicalUrl : t1;
+    }
+  };
+  A.AsyncImportCache_canonicalize_closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl),
+        $async$returnValue, $async$self = this, t1, t2, _0_0, result;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.baseUrl;
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_import_cache$_canonicalize$4($async$self.baseImporter, $async$self.resolvedUrl, t2, $async$self.forImport), $async$call$0);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              result = _0_0._0;
+              _0_0._1;
+              if (t2 != null)
+                t1._async_import_cache$_nonCanonicalRelativeUrls.$indexSet(0, $async$self.key, $async$self.url);
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 292
+  };
+  A.AsyncImportCache__canonicalize_closure.prototype = {
+    call$0() {
+      return this.importer.canonicalize$1(0, this.url);
+    },
+    $signature: 187
+  };
+  A.AsyncImportCache_importCanonical_closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Stylesheet),
+        $async$returnValue, $async$self = this, t3, t4, t1, t2, result;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.canonicalUrl;
+              t2 = A._Future$value($async$self.importer.load$1(0, t1), type$.nullable_ImporterResult);
+              $async$goto = 3;
+              return A._asyncAwait(t2, $async$call$0);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              if (result == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t2 = $async$self.$this;
+              t2._async_import_cache$_resultsCache.$indexSet(0, t1, result);
+              t3 = result.contents;
+              t4 = result.syntax;
+              t1 = $async$self.originalUrl.resolveUri$1(t1);
+              $async$returnValue = A.Stylesheet_Stylesheet$parse(t3, t4, $async$self.quiet ? $.$get$Logger_quiet() : t2._async_import_cache$_logger, t1);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 270
+  };
+  A.AsyncImportCache_humanize_closure.prototype = {
+    call$1(result) {
+      return J.$eq$(result._1, this.canonicalUrl);
+    },
+    $signature: 278
+  };
+  A.AsyncImportCache_humanize_closure0.prototype = {
+    call$1(result) {
+      return result._2;
+    },
+    $signature: 289
+  };
+  A.AsyncImportCache_humanize_closure1.prototype = {
+    call$1(url) {
+      return url.get$path(url).length;
+    },
+    $signature: 85
+  };
+  A.AsyncImportCache_humanize_closure2.prototype = {
+    call$1(url) {
+      var t1 = $.$get$url(),
+        t2 = this.canonicalUrl;
+      return url.resolve$1(0, A.ParsedPath_ParsedPath$parse(t2.get$path(t2), t1.style).get$basename());
+    },
+    $signature: 46
+  };
+  A.AsyncBuiltInCallable.prototype = {
+    callbackFor$2(positional, names) {
+      return new A._Record_2(this._async_built_in$_arguments, this._async_built_in$_callback);
+    },
+    $isAsyncCallable: 1,
+    get$name(receiver) {
+      return this.name;
+    },
+    get$acceptsContent() {
+      return this.acceptsContent;
+    }
+  };
+  A.AsyncBuiltInCallable$mixin_closure.prototype = {
+    call$1($arguments) {
+      return this.$call$body$AsyncBuiltInCallable$mixin_closure($arguments);
+    },
+    $call$body$AsyncBuiltInCallable$mixin_closure($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t1;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.callback.call$1($arguments);
+              $async$goto = 3;
+              return A._asyncAwait(t1 instanceof A._Future ? t1 : A._Future$value(t1, type$.void), $async$call$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = B.C__SassNull;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 258
+  };
+  A.BuiltInCallable.prototype = {
+    callbackFor$2(positional, names) {
+      var t1, t2, fuzzyMatch, minMismatchDistance, _i, overload, t3, mismatchDistance, t4;
+      for (t1 = this._overloads, t2 = t1.length, fuzzyMatch = null, minMismatchDistance = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        overload = t1[_i];
+        t3 = overload._0;
+        if (t3.matches$2(positional, names))
+          return overload;
+        mismatchDistance = t3.$arguments.length - positional;
+        if (minMismatchDistance != null) {
+          t3 = Math.abs(mismatchDistance);
+          t4 = Math.abs(minMismatchDistance);
+          if (t3 > t4)
+            continue;
+          if (t3 === t4 && mismatchDistance < 0)
+            continue;
+        }
+        minMismatchDistance = mismatchDistance;
+        fuzzyMatch = overload;
+      }
+      if (fuzzyMatch != null)
+        return fuzzyMatch;
+      throw A.wrapException(A.StateError$("BuiltInCallable " + this.name + " may not have empty overloads."));
+    },
+    withName$1($name) {
+      return new A.BuiltInCallable($name, this._overloads, this.acceptsContent);
+    },
+    $isCallable0: 1,
+    $isAsyncCallable: 1,
+    $isAsyncBuiltInCallable: 1,
+    get$name(receiver) {
+      return this.name;
+    },
+    get$acceptsContent() {
+      return this.acceptsContent;
+    }
+  };
+  A.BuiltInCallable$mixin_closure.prototype = {
+    call$1($arguments) {
+      this.callback.call$1($arguments);
+      return B.C__SassNull;
+    },
+    $signature: 6
+  };
+  A.PlainCssCallable.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.PlainCssCallable && this.name === other.name;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    },
+    $isCallable0: 1,
+    $isAsyncCallable: 1,
+    get$name(receiver) {
+      return this.name;
+    }
+  };
+  A.UserDefinedCallable.prototype = {
+    get$name(_) {
+      return this.declaration.name;
+    },
+    $isCallable0: 1,
+    $isAsyncCallable: 1
+  };
+  A._compileStylesheet_closure.prototype = {
+    call$1(url) {
+      var t1;
+      if (url === "") {
+        t1 = this.stylesheet.span;
+        t1 = A.Uri_Uri$dataFromString(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.get$file(t1)._decodedChars, 0, null), 0, null), B.C_Utf8Codec, null).get$_text();
+      } else
+        t1 = this.importCache.sourceMapUrl$1(0, A.Uri_parse(url)).toString$0(0);
+      return t1;
+    },
+    $signature: 5
+  };
+  A.CompileResult.prototype = {};
+  A.Configuration.prototype = {
+    throughForward$1($forward) {
+      var _0_0, _1_0, _2_0, t1, hiddenVariables,
+        newValues = this._configuration$_values;
+      if (newValues.get$isEmpty(newValues))
+        return B.Configuration_Map_empty_null;
+      _0_0 = $forward.prefix;
+      if (_0_0 != null)
+        newValues = new A.UnprefixedMapView(newValues, _0_0, type$.UnprefixedMapView_ConfiguredValue);
+      _1_0 = $forward.shownVariables;
+      if (_1_0 != null)
+        newValues = new A.LimitedMapView(newValues, _1_0._base.intersection$1(new A.MapKeySet(newValues, type$.MapKeySet_nullable_Object)), type$.LimitedMapView_String_ConfiguredValue);
+      else {
+        _2_0 = $forward.hiddenVariables;
+        if (_2_0 != null) {
+          t1 = _2_0._base.get$isNotEmpty(0);
+          hiddenVariables = _2_0;
+        } else {
+          hiddenVariables = null;
+          t1 = false;
+        }
+        if (t1)
+          newValues = A.LimitedMapView$blocklist(newValues, hiddenVariables, type$.String, type$.ConfiguredValue);
+      }
+      return this._withValues$1(newValues);
+    },
+    _withValues$1(values) {
+      var t1 = this.__originalConfiguration;
+      return new A.Configuration(values, t1 == null ? this : t1);
+    },
+    toString$0(_) {
+      var t2, t3,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = A.MapExtensions_get_pairs(new A.UnmodifiableMapView(this._configuration$_values, type$.UnmodifiableMapView_String_ConfiguredValue), type$.String, type$.ConfiguredValue), t2 = t2.get$iterator(t2); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push("$" + t3._0 + ": " + t3._1.toString$0(0));
+      }
+      return "(" + B.JSArray_methods.join$1(t1, ",") + ")";
+    }
+  };
+  A.ExplicitConfiguration.prototype = {
+    _withValues$1(values) {
+      var t1 = this.__originalConfiguration;
+      if (t1 == null)
+        t1 = this;
+      return new A.ExplicitConfiguration(this.nodeWithSpan, values, t1);
+    }
+  };
+  A.ConfiguredValue.prototype = {
+    toString$0(_) {
+      return A.serializeValue(this.value, true, true);
+    }
+  };
+  A.Deprecation.prototype = {
+    _enumToString$0() {
+      return "Deprecation." + this._name;
+    },
+    toString$0(_) {
+      return this.id;
+    }
+  };
+  A.Deprecation_fromId_closure.prototype = {
+    call$1(deprecation) {
+      return deprecation.id === this.id;
+    },
+    $signature: 301
+  };
+  A.Environment.prototype = {
+    closure$0() {
+      var t4, t5, t6, _this = this,
+        t1 = _this._forwardedModules,
+        t2 = _this._nestedForwardedModules,
+        t3 = _this._variables;
+      t3 = A._setArrayType(t3.slice(0), A._arrayInstanceType(t3));
+      t4 = _this._variableNodes;
+      t4 = A._setArrayType(t4.slice(0), A._arrayInstanceType(t4));
+      t5 = _this._functions;
+      t5 = A._setArrayType(t5.slice(0), A._arrayInstanceType(t5));
+      t6 = _this._mixins;
+      t6 = A._setArrayType(t6.slice(0), A._arrayInstanceType(t6));
+      return A.Environment$_(_this._environment$_modules, _this._namespaceNodes, _this._globalModules, _this._importedModules, t1, t2, _this._allModules, t3, t4, t5, t6, _this._content);
+    },
+    forwardModule$2(module, rule) {
+      var view, t1, t2, _this = this,
+        forwardedModules = _this._forwardedModules;
+      if (forwardedModules == null)
+        forwardedModules = _this._forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_Callable, type$.AstNode);
+      view = A.ForwardedModuleView_ifNecessary(module, rule, type$.Callable);
+      for (t1 = A.LinkedHashMapKeyIterator$(forwardedModules, forwardedModules.__js_helper$_modifications); t1.moveNext$0();) {
+        t2 = t1.__js_helper$_current;
+        _this._assertNoConflicts$5(view.get$variables(), t2.get$variables(), view, t2, "variable");
+        _this._assertNoConflicts$5(view.get$functions(view), t2.get$functions(t2), view, t2, "function");
+        _this._assertNoConflicts$5(view.get$mixins(), t2.get$mixins(), view, t2, "mixin");
+      }
+      _this._allModules.push(module);
+      forwardedModules.$indexSet(0, view, rule);
+    },
+    _assertNoConflicts$5(newMembers, oldMembers, newModule, oldModule, type) {
+      var larger, smaller, t1, t2, t3, t4, $name, small, large, span;
+      if (newMembers.get$length(newMembers) < oldMembers.get$length(oldMembers)) {
+        larger = oldMembers;
+        smaller = newMembers;
+      } else {
+        larger = newMembers;
+        smaller = oldMembers;
+      }
+      for (t1 = type$.String, t2 = A.MapExtensions_get_pairs(smaller, t1, type$.Object), t2 = t2.get$iterator(t2), t3 = type === "variable"; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        $name = t4._0;
+        small = t4._1;
+        large = larger.$index(0, $name);
+        if (large == null)
+          continue;
+        if (t3 ? newModule.variableIdentity$1($name) === oldModule.variableIdentity$1($name) : J.$eq$(large, small))
+          continue;
+        if (t3)
+          $name = "$" + $name;
+        t2 = this._forwardedModules;
+        if (t2 == null)
+          span = null;
+        else {
+          t2 = t2.$index(0, oldModule);
+          span = t2 == null ? null : J.get$span$z(t2);
+        }
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, t1);
+        if (span != null)
+          t2.$indexSet(0, span, "original @forward");
+        throw A.wrapException(A.MultiSpanSassScriptException$("Two forwarded modules both define a " + type + " named " + $name + ".", "new @forward", t2));
+      }
+    },
+    importForwards$1(module) {
+      var forwardedModules, t1, t2, t3, t4, node, t5, t6, t7, t8, t9, t10, _i, t11, shadowed, _length, _list, _this = this,
+        forwarded = module._environment$_environment._forwardedModules;
+      if (forwarded == null)
+        return;
+      forwardedModules = _this._forwardedModules;
+      if (forwardedModules != null) {
+        t1 = type$.Module_Callable;
+        t2 = type$.AstNode;
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t1 = A.MapExtensions_get_pairs(forwarded, t1, t2), t1 = t1.get$iterator(t1), t2 = _this._globalModules; t1.moveNext$0();) {
+          t4 = t1.get$current(t1);
+          module = t4._0;
+          node = t4._1;
+          if (!forwardedModules.containsKey$1(module) || !t2.containsKey$1(module))
+            t3.$indexSet(0, module, node);
+        }
+        forwarded = t3;
+      } else
+        forwardedModules = _this._forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_Callable, type$.AstNode);
+      t1 = type$.String;
+      t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t3 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t3.moveNext$0();)
+        for (t4 = t3.__js_helper$_current.get$variables(), t4 = J.get$iterator$ax(t4.get$keys(t4)); t4.moveNext$0();)
+          t2.add$1(0, t4.get$current(t4));
+      t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();) {
+        t5 = t4.__js_helper$_current;
+        for (t5 = t5.get$functions(t5), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t3.add$1(0, t5.get$current(t5));
+      }
+      t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();)
+        for (t5 = t4.__js_helper$_current.get$mixins(), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t1.add$1(0, t5.get$current(t5));
+      t4 = _this._variables;
+      t5 = t4.length;
+      if (t5 === 1) {
+        for (t5 = _this._importedModules, t6 = type$.Module_Callable, t7 = type$.AstNode, t8 = A.MapExtensions_get_pairs(t5, t6, t7).toList$0(0), t9 = t8.length, t10 = type$.Callable, _i = 0; _i < t8.length; t8.length === t9 || (0, A.throwConcurrentModificationError)(t8), ++_i) {
+          t11 = t8[_i];
+          module = t11._0;
+          node = t11._1;
+          shadowed = A.ShadowedModuleView_ifNecessary(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            t5.remove$1(0, module);
+            t11 = shadowed.variables;
+            if (t11.get$isEmpty(t11)) {
+              t11 = shadowed.functions;
+              if (t11.get$isEmpty(t11)) {
+                t11 = shadowed.mixins;
+                if (t11.get$isEmpty(t11)) {
+                  t11 = shadowed._shadowed_view$_inner;
+                  t11 = t11.get$css(t11);
+                  t11 = J.get$isEmpty$asx(t11.get$children(t11));
+                } else
+                  t11 = false;
+              } else
+                t11 = false;
+            } else
+              t11 = false;
+            if (!t11)
+              t5.$indexSet(0, shadowed, node);
+          }
+        }
+        for (t6 = A.MapExtensions_get_pairs(forwardedModules, t6, t7).toList$0(0), t7 = t6.length, _i = 0; _i < t6.length; t6.length === t7 || (0, A.throwConcurrentModificationError)(t6), ++_i) {
+          t8 = t6[_i];
+          module = t8._0;
+          node = t8._1;
+          shadowed = A.ShadowedModuleView_ifNecessary(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            forwardedModules.remove$1(0, module);
+            t8 = shadowed.variables;
+            if (t8.get$isEmpty(t8)) {
+              t8 = shadowed.functions;
+              if (t8.get$isEmpty(t8)) {
+                t8 = shadowed.mixins;
+                if (t8.get$isEmpty(t8)) {
+                  t8 = shadowed._shadowed_view$_inner;
+                  t8 = t8.get$css(t8);
+                  t8 = J.get$isEmpty$asx(t8.get$children(t8));
+                } else
+                  t8 = false;
+              } else
+                t8 = false;
+            } else
+              t8 = false;
+            if (!t8)
+              forwardedModules.$indexSet(0, shadowed, node);
+          }
+        }
+        t5.addAll$1(0, forwarded);
+        forwardedModules.addAll$1(0, forwarded);
+      } else {
+        t6 = _this._nestedForwardedModules;
+        if (t6 == null) {
+          _length = t5 - 1;
+          _list = J.JSArray_JSArray$allocateGrowable(_length, type$.List_Module_Callable);
+          for (t5 = type$.JSArray_Module_Callable, _i = 0; _i < _length; ++_i)
+            _list[_i] = A._setArrayType([], t5);
+          _this._nestedForwardedModules = _list;
+          t5 = _list;
+        } else
+          t5 = t6;
+        B.JSArray_methods.addAll$1(B.JSArray_methods.get$last(t5), new A.LinkedHashMapKeyIterable(forwarded, A._instanceType(forwarded)._eval$1("LinkedHashMapKeyIterable<1>")));
+      }
+      for (t2 = A._LinkedHashSetIterator$(t2, t2._modifications, t2.$ti._precomputed1), t5 = _this._variableIndices, t6 = _this._variableNodes, t7 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t8 = t2._collection$_current;
+        if (t8 == null)
+          t8 = t7._as(t8);
+        t5.remove$1(0, t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t6), t8);
+      }
+      for (t2 = A._LinkedHashSetIterator$(t3, t3._modifications, t3.$ti._precomputed1), t3 = _this._functionIndices, t4 = _this._functions, t5 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t6 = t2._collection$_current;
+        if (t6 == null)
+          t6 = t5._as(t6);
+        t3.remove$1(0, t6);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t6);
+      }
+      for (t1 = A._LinkedHashSetIterator$(t1, t1._modifications, t1.$ti._precomputed1), t2 = _this._mixinIndices, t3 = _this._mixins, t4 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t5 = t1._collection$_current;
+        if (t5 == null)
+          t5 = t4._as(t5);
+        t2.remove$1(0, t5);
+        J.remove$1$z(B.JSArray_methods.get$last(t3), t5);
+      }
+    },
+    getVariable$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._getModule$1(namespace).get$variables().$index(0, $name);
+      if (_this._lastVariableName === $name) {
+        t1 = _this._lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._variables[t1], $name);
+        return t1 == null ? _this._getVariableFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._lastVariableName = $name;
+        _this._lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._variables[_0_0], $name);
+        return t1 == null ? _this._getVariableFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._lastVariableName = $name;
+          _this._lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._variables[_1_0], $name);
+          return t1 == null ? _this._getVariableFromGlobalModule$1($name) : t1;
+        } else
+          return _this._getVariableFromGlobalModule$1($name);
+      }
+    },
+    getVariable$1($name) {
+      return this.getVariable$2$namespace($name, null);
+    },
+    _getVariableFromGlobalModule$1($name) {
+      return this._fromOneModule$3($name, "variable", new A.Environment__getVariableFromGlobalModule_closure($name));
+    },
+    getVariableNode$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._getModule$1(namespace).get$variableNodes().$index(0, $name);
+      if (_this._lastVariableName === $name) {
+        t1 = _this._lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._variableNodes[t1], $name);
+        return t1 == null ? _this._getVariableNodeFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._lastVariableName = $name;
+        _this._lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._variableNodes[_0_0], $name);
+        return t1 == null ? _this._getVariableNodeFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._lastVariableName = $name;
+          _this._lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._variableNodes[_1_0], $name);
+          return t1 == null ? _this._getVariableNodeFromGlobalModule$1($name) : t1;
+        } else
+          return _this._getVariableNodeFromGlobalModule$1($name);
+      }
+    },
+    _getVariableNodeFromGlobalModule$1($name) {
+      var t1, t2, _0_0;
+      for (t1 = this._importedModules, t2 = this._globalModules, t2 = new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>")).followedBy$1(0, new A.LinkedHashMapKeyIterable(t2, A._instanceType(t2)._eval$1("LinkedHashMapKeyIterable<1>"))), t2 = new A.FollowedByIterator(J.get$iterator$ax(t2.__internal$_first), t2._second); t2.moveNext$0();) {
+        t1 = t2._currentIterator;
+        _0_0 = t1.get$current(t1).get$variableNodes().$index(0, $name);
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    globalVariableExists$2$namespace($name, namespace) {
+      if (namespace != null)
+        return this._getModule$1(namespace).get$variables().containsKey$1($name);
+      if (B.JSArray_methods.get$first(this._variables).containsKey$1($name))
+        return true;
+      return this._getVariableFromGlobalModule$1($name) != null;
+    },
+    globalVariableExists$1($name) {
+      return this.globalVariableExists$2$namespace($name, null);
+    },
+    _variableIndex$1($name) {
+      var t1, i;
+      for (t1 = this._variables, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    setVariable$5$global$namespace($name, value, nodeWithSpan, global, namespace) {
+      var t1, moduleWithName, nestedForwardedModules, t2, t3, t4, t5, index, _this = this;
+      if (namespace != null) {
+        _this._getModule$1(namespace).setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      if (global || _this._variables.length === 1) {
+        _this._variableIndices.putIfAbsent$2($name, new A.Environment_setVariable_closure(_this, $name));
+        t1 = _this._variables;
+        if (!B.JSArray_methods.get$first(t1).containsKey$1($name)) {
+          moduleWithName = _this._fromOneModule$3($name, "variable", new A.Environment_setVariable_closure0($name));
+          if (moduleWithName != null) {
+            moduleWithName.setVariable$3($name, value, nodeWithSpan);
+            return;
+          }
+        }
+        J.$indexSet$ax(B.JSArray_methods.get$first(t1), $name, value);
+        J.$indexSet$ax(B.JSArray_methods.get$first(_this._variableNodes), $name, nodeWithSpan);
+        return;
+      }
+      nestedForwardedModules = _this._nestedForwardedModules;
+      if (nestedForwardedModules != null && !_this._variableIndices.containsKey$1($name) && _this._variableIndex$1($name) == null)
+        for (t1 = A._arrayInstanceType(nestedForwardedModules)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(nestedForwardedModules, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            if (t5 == null)
+              t5 = t4._as(t5);
+            if (t5.get$variables().containsKey$1($name)) {
+              t5.setVariable$3($name, value, nodeWithSpan);
+              return;
+            }
+          }
+        }
+      if (_this._lastVariableName === $name) {
+        t1 = _this._lastVariableIndex;
+        t1.toString;
+        index = t1;
+      } else
+        index = _this._variableIndices.putIfAbsent$2($name, new A.Environment_setVariable_closure1(_this, $name));
+      if (!_this._inSemiGlobalScope && index === 0) {
+        index = _this._variables.length - 1;
+        _this._variableIndices.$indexSet(0, $name, index);
+      }
+      _this._lastVariableName = $name;
+      _this._lastVariableIndex = index;
+      J.$indexSet$ax(_this._variables[index], $name, value);
+      J.$indexSet$ax(_this._variableNodes[index], $name, nodeWithSpan);
+    },
+    setVariable$4$global($name, value, nodeWithSpan, global) {
+      return this.setVariable$5$global$namespace($name, value, nodeWithSpan, global, null);
+    },
+    setLocalVariable$3($name, value, nodeWithSpan) {
+      var index, _this = this,
+        t1 = _this._variables,
+        t2 = t1.length;
+      _this._lastVariableName = $name;
+      index = _this._lastVariableIndex = t2 - 1;
+      _this._variableIndices.$indexSet(0, $name, index);
+      J.$indexSet$ax(t1[index], $name, value);
+      J.$indexSet$ax(_this._variableNodes[index], $name, nodeWithSpan);
+    },
+    getFunction$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null) {
+        t1 = _this._getModule$1(namespace);
+        return t1.get$functions(t1).$index(0, $name);
+      }
+      t1 = _this._functionIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._functions[_0_0], $name);
+        return t1 == null ? _this._getFunctionFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._functionIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._functions[_1_0], $name);
+          return t1 == null ? _this._getFunctionFromGlobalModule$1($name) : t1;
+        } else
+          return _this._getFunctionFromGlobalModule$1($name);
+      }
+    },
+    getFunction$1($name) {
+      return this.getFunction$2$namespace($name, null);
+    },
+    _getFunctionFromGlobalModule$1($name) {
+      return this._fromOneModule$3($name, "function", new A.Environment__getFunctionFromGlobalModule_closure($name));
+    },
+    _functionIndex$1($name) {
+      var t1, i;
+      for (t1 = this._functions, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    getMixin$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._getModule$1(namespace).get$mixins().$index(0, $name);
+      t1 = _this._mixinIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._mixins[_0_0], $name);
+        return t1 == null ? _this._getMixinFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._mixinIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._mixins[_1_0], $name);
+          return t1 == null ? _this._getMixinFromGlobalModule$1($name) : t1;
+        } else
+          return _this._getMixinFromGlobalModule$1($name);
+      }
+    },
+    _getMixinFromGlobalModule$1($name) {
+      return this._fromOneModule$3($name, "mixin", new A.Environment__getMixinFromGlobalModule_closure($name));
+    },
+    _mixinIndex$1($name) {
+      var t1, i;
+      for (t1 = this._mixins, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    withContent$2($content, callback) {
+      var oldContent = this._content;
+      this._content = $content;
+      callback.call$0();
+      this._content = oldContent;
+    },
+    asMixin$1(callback) {
+      var oldInMixin = this._inMixin;
+      this._inMixin = true;
+      callback.call$0();
+      this._inMixin = oldInMixin;
+    },
+    scope$1$3$semiGlobal$when(callback, semiGlobal, when) {
+      var wasInSemiGlobalScope, $name, name0, name1, t1, t2, t3, t4, t5, t6, _this = this;
+      semiGlobal = semiGlobal && _this._inSemiGlobalScope;
+      wasInSemiGlobalScope = _this._inSemiGlobalScope;
+      _this._inSemiGlobalScope = semiGlobal;
+      if (!when)
+        try {
+          t1 = callback.call$0();
+          return t1;
+        } finally {
+          _this._inSemiGlobalScope = wasInSemiGlobalScope;
+        }
+      t1 = _this._variables;
+      t2 = type$.String;
+      B.JSArray_methods.add$1(t1, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.Value));
+      t3 = _this._variableNodes;
+      B.JSArray_methods.add$1(t3, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.AstNode));
+      t4 = _this._functions;
+      t5 = type$.Callable;
+      B.JSArray_methods.add$1(t4, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+      t6 = _this._mixins;
+      B.JSArray_methods.add$1(t6, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+      t5 = _this._nestedForwardedModules;
+      if (t5 != null)
+        t5.push(A._setArrayType([], type$.JSArray_Module_Callable));
+      try {
+        t2 = callback.call$0();
+        return t2;
+      } finally {
+        _this._inSemiGlobalScope = wasInSemiGlobalScope;
+        _this._lastVariableIndex = _this._lastVariableName = null;
+        for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t1))), t2 = _this._variableIndices; t1.moveNext$0();) {
+          $name = t1.get$current(t1);
+          t2.remove$1(0, $name);
+        }
+        B.JSArray_methods.removeLast$0(t3);
+        for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t4))), t2 = _this._functionIndices; t1.moveNext$0();) {
+          name0 = t1.get$current(t1);
+          t2.remove$1(0, name0);
+        }
+        for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t6))), t2 = _this._mixinIndices; t1.moveNext$0();) {
+          name1 = t1.get$current(t1);
+          t2.remove$1(0, name1);
+        }
+        t1 = _this._nestedForwardedModules;
+        if (t1 != null)
+          t1.pop();
+      }
+    },
+    scope$1$1(callback) {
+      return this.scope$1$3$semiGlobal$when(callback, false, true);
+    },
+    scope$1$2$when(callback, when) {
+      return this.scope$1$3$semiGlobal$when(callback, false, when);
+    },
+    scope$1$2$semiGlobal(callback, semiGlobal) {
+      return this.scope$1$3$semiGlobal$when(callback, semiGlobal, true);
+    },
+    toImplicitConfiguration$0() {
+      var t2, t3, t4, i, values, nodes, t5, t6, $name, value,
+        t1 = type$.String,
+        configuration = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.ConfiguredValue);
+      for (t2 = this._variables, t3 = type$.Value, t4 = this._variableNodes, i = 0; i < t2.length; ++i) {
+        values = t2[i];
+        nodes = t4[i];
+        for (t5 = A.MapExtensions_get_pairs(values, t1, t3), t5 = t5.get$iterator(t5); t5.moveNext$0();) {
+          t6 = t5.get$current(t5);
+          $name = t6._0;
+          value = t6._1;
+          t6 = nodes.$index(0, $name);
+          t6.toString;
+          configuration.$indexSet(0, $name, new A.ConfiguredValue(value, null, t6));
+        }
+      }
+      return new A.Configuration(configuration, null);
+    },
+    toModule$3(css, preModuleComments, extensionStore) {
+      return A._EnvironmentModule__EnvironmentModule(this, css, preModuleComments, extensionStore, A.NullableExtension_andThen(this._forwardedModules, new A.Environment_toModule_closure()));
+    },
+    toDummyModule$0() {
+      return A._EnvironmentModule__EnvironmentModule(this, new A.CssStylesheet(new A.UnmodifiableListView(B.List_empty3, type$.UnmodifiableListView_CssNode), A.SourceFile$decoded(B.List_empty4, "<dummy module>").span$1(0, 0)), B.Map_empty0, B.C_EmptyExtensionStore, A.NullableExtension_andThen(this._forwardedModules, new A.Environment_toDummyModule_closure()));
+    },
+    _getModule$1(namespace) {
+      var _0_0 = this._environment$_modules.$index(0, namespace);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$('There is no module with the namespace "' + namespace + '".', null));
+    },
+    _fromOneModule$1$3($name, type, callback) {
+      var t1, t2, t3, t4, t5, _1_0, _2_0, value, identity, valueInModule, identityFromModule, module, node,
+        _0_0 = this._nestedForwardedModules;
+      if (_0_0 != null)
+        for (t1 = A._arrayInstanceType(_0_0)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(_0_0, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            _1_0 = callback.call$1(t5 == null ? t4._as(t5) : t5);
+            if (_1_0 != null)
+              return _1_0;
+          }
+        }
+      for (t1 = this._importedModules, t1 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications); t1.moveNext$0();) {
+        _2_0 = callback.call$1(t1.__js_helper$_current);
+        if (_2_0 != null)
+          return _2_0;
+      }
+      for (t1 = this._globalModules, t2 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications), t3 = type$.Callable, value = null, identity = null; t2.moveNext$0();) {
+        t4 = t2.__js_helper$_current;
+        valueInModule = callback.call$1(t4);
+        if (valueInModule == null)
+          continue;
+        identityFromModule = t3._is(valueInModule) ? valueInModule : t4.variableIdentity$1($name);
+        if (identityFromModule.$eq(0, identity))
+          continue;
+        if (value != null) {
+          t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          for (t3 = A.MapExtensions_get_pairs(t1, type$.Module_Callable, type$.AstNode), t3 = t3.get$iterator(t3), t4 = "includes " + type; t3.moveNext$0();) {
+            t1 = t3.get$current(t3);
+            module = t1._0;
+            node = t1._1;
+            if (callback.call$1(module) != null)
+              t2.$indexSet(0, node.get$span(node), t4);
+          }
+          throw A.wrapException(A.MultiSpanSassScriptException$("This " + type + string$.x20is_av, type + " use", t2));
+        }
+        identity = identityFromModule;
+        value = valueInModule;
+      }
+      return value;
+    },
+    _fromOneModule$3($name, type, callback) {
+      return this._fromOneModule$1$3($name, type, callback, type$.dynamic);
+    }
+  };
+  A.Environment__getVariableFromGlobalModule_closure.prototype = {
+    call$1(module) {
+      return module.get$variables().$index(0, this.name);
+    },
+    $signature: 384
+  };
+  A.Environment_setVariable_closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._lastVariableName = this.name;
+      return t1._lastVariableIndex = 0;
+    },
+    $signature: 10
+  };
+  A.Environment_setVariable_closure0.prototype = {
+    call$1(module) {
+      return module.get$variables().containsKey$1(this.name) ? module : null;
+    },
+    $signature: 310
+  };
+  A.Environment_setVariable_closure1.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._variableIndex$1(this.name);
+      return t2 == null ? t1._variables.length - 1 : t2;
+    },
+    $signature: 10
+  };
+  A.Environment__getFunctionFromGlobalModule_closure.prototype = {
+    call$1(module) {
+      return module.get$functions(module).$index(0, this.name);
+    },
+    $signature: 247
+  };
+  A.Environment__getMixinFromGlobalModule_closure.prototype = {
+    call$1(module) {
+      return module.get$mixins().$index(0, this.name);
+    },
+    $signature: 247
+  };
+  A.Environment_toModule_closure.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_Callable);
+    },
+    $signature: 246
+  };
+  A.Environment_toDummyModule_closure.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_Callable);
+    },
+    $signature: 246
+  };
+  A._EnvironmentModule.prototype = {
+    get$url(_) {
+      var t1 = this.css;
+      t1 = t1.get$span(t1);
+      return t1.get$sourceUrl(t1);
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      var t1, t2,
+        _0_0 = this._modulesByVariable.$index(0, $name);
+      if (_0_0 != null) {
+        _0_0.setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      t1 = this._environment$_environment;
+      t2 = t1._variables;
+      if (!B.JSArray_methods.get$first(t2).containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$("Undefined variable.", null));
+      J.$indexSet$ax(B.JSArray_methods.get$first(t2), $name, value);
+      J.$indexSet$ax(B.JSArray_methods.get$first(t1._variableNodes), $name, nodeWithSpan);
+      return;
+    },
+    variableIdentity$1($name) {
+      var module = this._modulesByVariable.$index(0, $name);
+      return module == null ? this : module.variableIdentity$1($name);
+    },
+    cloneCss$0() {
+      var _0_0, _this = this;
+      if (!_this.transitivelyContainsCss)
+        return _this;
+      _0_0 = A.cloneCssStylesheet(_this.css, _this.extensionStore);
+      return A._EnvironmentModule$_(_this._environment$_environment, _0_0._0, _this.preModuleComments, _0_0._1, _this._modulesByVariable, _this.variables, _this.variableNodes, _this.functions, _this.mixins, true, _this.transitivelyContainsExtensions);
+    },
+    toString$0(_) {
+      var t1 = this.css,
+        t2 = t1.get$span(t1);
+      if (t2.get$sourceUrl(t2) == null)
+        t1 = "<unknown url>";
+      else {
+        t1 = t1.get$span(t1);
+        t1 = t1.get$sourceUrl(t1);
+        t2 = $.$get$context();
+        t1.toString;
+        t1 = t2.prettyUri$1(t1);
+      }
+      return t1;
+    },
+    $isModule0: 1,
+    get$upstream() {
+      return this.upstream;
+    },
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    },
+    get$extensionStore() {
+      return this.extensionStore;
+    },
+    get$css(receiver) {
+      return this.css;
+    },
+    get$preModuleComments() {
+      return this.preModuleComments;
+    },
+    get$transitivelyContainsCss() {
+      return this.transitivelyContainsCss;
+    },
+    get$transitivelyContainsExtensions() {
+      return this.transitivelyContainsExtensions;
+    }
+  };
+  A._EnvironmentModule__EnvironmentModule_closure.prototype = {
+    call$1(module) {
+      return module.get$variables();
+    },
+    $signature: 316
+  };
+  A._EnvironmentModule__EnvironmentModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$variableNodes();
+    },
+    $signature: 319
+  };
+  A._EnvironmentModule__EnvironmentModule_closure1.prototype = {
+    call$1(module) {
+      return module.get$functions(module);
+    },
+    $signature: 237
+  };
+  A._EnvironmentModule__EnvironmentModule_closure2.prototype = {
+    call$1(module) {
+      return module.get$mixins();
+    },
+    $signature: 237
+  };
+  A._EnvironmentModule__EnvironmentModule_closure3.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 130
+  };
+  A._EnvironmentModule__EnvironmentModule_closure4.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsExtensions();
+    },
+    $signature: 130
+  };
+  A.SassException.prototype = {
+    get$trace(_) {
+      return A.Trace$(A._setArrayType([A.frameForSpan(A.SourceSpanException.prototype.get$span.call(this, 0), "root stylesheet", null)], type$.JSArray_Frame), null);
+    },
+    get$span(_) {
+      return A.SourceSpanException.prototype.get$span.call(this, 0);
+    },
+    withAdditionalSpan$2(span, label) {
+      return A.MultiSpanSassException$(this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(this, 0), "", A.LinkedHashMap_LinkedHashMap$_literal([span, label], type$.FileSpan, type$.String), this.loadedUrls);
+    },
+    withTrace$1(trace) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(this.loadedUrls, type$.Uri);
+      return new A.SassRuntimeException(trace, t2, this._span_exception$_message, t1);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(loadedUrls, type$.Uri);
+      return new A.SassException(t2, this._span_exception$_message, t1);
+    },
+    toString$1$color(_, color) {
+      var t2, _i, frame, t3, _this = this,
+        buffer = new A.StringBuffer(""),
+        t1 = "" + ("Error: " + _this._span_exception$_message + "\n");
+      buffer._contents = t1;
+      buffer._contents = t1 + A.SourceSpanException.prototype.get$span.call(_this, 0).highlight$1$color(color);
+      for (t1 = _this.get$trace(_this).toString$0(0).split("\n"), t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        frame = t1[_i];
+        if (J.get$length$asx(frame) === 0)
+          continue;
+        t3 = buffer._contents += "\n";
+        buffer._contents = t3 + ("  " + A.S(frame));
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    toString$0(_) {
+      return this.toString$1$color(0, null);
+    },
+    toCssString$0() {
+      var commentMessage, stringMessage, rune,
+        t1 = $._glyphs,
+        t2 = $._glyphs = B.C_AsciiGlyphSet,
+        t3 = this.toString$1$color(0, false);
+      t3 = A.stringReplaceAllUnchecked(t3, "*/", "*\u2215");
+      commentMessage = A.stringReplaceAllUnchecked(t3, "\r\n", "\n");
+      $._glyphs = t1 === B.C_AsciiGlyphSet ? t2 : B.C_UnicodeGlyphSet;
+      stringMessage = new A.StringBuffer("");
+      for (t1 = new A.RuneIterator(A.serializeValue(new A.SassString(this.toString$1$color(0, false), true), true, true)); t1.moveNext$0();) {
+        rune = t1._currentCodePoint;
+        if (rune > 127) {
+          t2 = A.Primitives_stringFromCharCode(92);
+          stringMessage._contents += t2;
+          t2 = B.JSInt_methods.toRadixString$1(rune, 16);
+          stringMessage._contents += t2;
+          t2 = A.Primitives_stringFromCharCode(32);
+          stringMessage._contents += t2;
+        } else {
+          t2 = A.Primitives_stringFromCharCode(rune);
+          stringMessage._contents += t2;
+        }
+      }
+      return "/* " + B.JSArray_methods.join$1(A._setArrayType(commentMessage.split("\n"), type$.JSArray_String), "\n * ") + ' */\n\nbody::before {\n  font-family: "Source Code Pro", "SF Mono", Monaco, Inconsolata, "Fira Mono",\n      "Droid Sans Mono", monospace, monospace;\n  white-space: pre;\n  display: block;\n  padding: 1em;\n  margin-bottom: 1em;\n  border-bottom: 2px solid black;\n  content: ' + stringMessage.toString$0(0) + ";\n}";
+    }
+  };
+  A.MultiSpanSassException.prototype = {
+    withAdditionalSpan$2(span, label) {
+      var _this = this,
+        t1 = A.SourceSpanException.prototype.get$span.call(_this, 0),
+        t2 = A.LinkedHashMap_LinkedHashMap$of(_this.secondarySpans, type$.FileSpan, type$.String);
+      t2.$indexSet(0, span, label);
+      return A.MultiSpanSassException$(_this._span_exception$_message, t1, _this.primaryLabel, t2, _this.loadedUrls);
+    },
+    withTrace$1(trace) {
+      var _this = this;
+      return A.MultiSpanSassRuntimeException$(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, trace, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var _this = this;
+      return A.MultiSpanSassException$(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, loadedUrls);
+    },
+    toString$1$color(_, color) {
+      var t1, t2, _i, frame, t3, _this = this,
+        useColor = color === true,
+        buffer = new A.StringBuffer("Error: " + _this._span_exception$_message + "\n");
+      A.NullableExtension_andThen(A.Highlighter$multiple(A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, useColor, null, null).highlight$0(), buffer.get$write(buffer));
+      for (t1 = _this.get$trace(_this).toString$0(0).split("\n"), t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        frame = t1[_i];
+        if (J.get$length$asx(frame) === 0)
+          continue;
+        buffer._contents += "\n";
+        t3 = "  " + A.S(frame);
+        buffer._contents += t3;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    toString$0(_) {
+      return this.toString$1$color(0, null);
+    },
+    get$primaryLabel() {
+      return this.primaryLabel;
+    },
+    get$secondarySpans() {
+      return this.secondarySpans;
+    }
+  };
+  A.SassRuntimeException.prototype = {
+    withAdditionalSpan$2(span, label) {
+      var _this = this;
+      return A.MultiSpanSassRuntimeException$(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), "", A.LinkedHashMap_LinkedHashMap$_literal([span, label], type$.FileSpan, type$.String), _this.trace, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(loadedUrls, type$.Uri);
+      return new A.SassRuntimeException(this.trace, t2, this._span_exception$_message, t1);
+    },
+    get$trace(receiver) {
+      return this.trace;
+    }
+  };
+  A.MultiSpanSassRuntimeException.prototype = {
+    withAdditionalSpan$2(span, label) {
+      var _this = this,
+        t1 = A.SourceSpanException.prototype.get$span.call(_this, 0),
+        t2 = A.LinkedHashMap_LinkedHashMap$of(_this.secondarySpans, type$.FileSpan, type$.String);
+      t2.$indexSet(0, span, label);
+      return A.MultiSpanSassRuntimeException$(_this._span_exception$_message, t1, _this.primaryLabel, t2, _this.trace, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var _this = this;
+      return A.MultiSpanSassRuntimeException$(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, _this.trace, loadedUrls);
+    },
+    $isSassRuntimeException: 1,
+    get$trace(receiver) {
+      return this.trace;
+    }
+  };
+  A.SassFormatException.prototype = {
+    get$source() {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0);
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.get$file(t1)._decodedChars, 0, null), 0, null);
+    },
+    withAdditionalSpan$2(span, label) {
+      return A.MultiSpanSassFormatException$(this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(this, 0), "", A.LinkedHashMap_LinkedHashMap$_literal([span, label], type$.FileSpan, type$.String), this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(loadedUrls, type$.Uri);
+      return new A.SassFormatException(t2, this._span_exception$_message, t1);
+    },
+    $isFormatException: 1,
+    $isSourceSpanFormatException: 1
+  };
+  A.MultiSpanSassFormatException.prototype = {
+    get$source() {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0);
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.get$file(t1)._decodedChars, 0, null), 0, null);
+    },
+    withAdditionalSpan$2(span, label) {
+      var _this = this,
+        t1 = A.SourceSpanException.prototype.get$span.call(_this, 0),
+        t2 = A.LinkedHashMap_LinkedHashMap$of(_this.secondarySpans, type$.FileSpan, type$.String);
+      t2.$indexSet(0, span, label);
+      return A.MultiSpanSassFormatException$(_this._span_exception$_message, t1, _this.primaryLabel, t2, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var _this = this;
+      return A.MultiSpanSassFormatException$(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, loadedUrls);
+    },
+    $isFormatException: 1,
+    $isSassFormatException: 1,
+    $isSourceSpanFormatException: 1,
+    $isMultiSourceSpanFormatException: 1
+  };
+  A.SassScriptException.prototype = {
+    withSpan$1(span) {
+      return new A.SassException(B.Set_empty, this.message, span);
+    },
+    toString$0(_) {
+      return this.message + string$.x0a_BUG_;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.MultiSpanSassScriptException.prototype = {
+    withSpan$1(span) {
+      return A.MultiSpanSassException$(this.message, span, this.primaryLabel, this.secondarySpans, null);
+    }
+  };
+  A._writeSourceMap_closure.prototype = {
+    call$1(url) {
+      return this.options.sourceMapUrl$2(0, A.Uri_parse(url), this.destination).toString$0(0);
+    },
+    $signature: 5
+  };
+  A.ExecutableOptions.prototype = {
+    get$interactive() {
+      var result, _this = this,
+        value = _this.__ExecutableOptions_interactive_FI;
+      if (value === $) {
+        result = new A.ExecutableOptions_interactive_closure(_this).call$0();
+        _this.__ExecutableOptions_interactive_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__ExecutableOptions_interactive_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$color() {
+      var t1 = this._options;
+      return t1.wasParsed$1("color") ? A._asBool(t1.$index(0, "color")) : A.hasTerminal();
+    },
+    get$pkgImporters() {
+      var t2, t3, t4, _null = null,
+        t1 = A._setArrayType([], type$.JSArray_Importer);
+      for (t2 = J.get$iterator$ax(type$.List_String._as(this._options.$index(0, "pkg-importer"))); t2.moveNext$0();) {
+        t2.get$current(t2);
+        t3 = new A.NodePackageImporter();
+        t4 = self.process;
+        if (t4 == null)
+          t4 = _null;
+        else {
+          t4 = J.get$release$x(t4);
+          t4 = t4 == null ? _null : J.get$name$x(t4);
+        }
+        if (!J.$eq$(t4, "node") && self.document != null && typeof self.document.querySelector == "function")
+          A.throwExpression(string$.The_No);
+        t3.__NodePackageImporter__entryPointDirectory_F = $.$get$context().absolute$15(".", _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+        t1.push(t3);
+      }
+      return t1;
+    },
+    get$emitErrorCss() {
+      var t1 = A._asBoolQ(this._options.$index(0, "error-css"));
+      if (t1 == null) {
+        this._ensureSources$0();
+        t1 = this._sourcesToDestinations;
+        t1 = t1.get$values(t1).any$1(0, new A.ExecutableOptions_emitErrorCss_closure());
+      }
+      return t1;
+    },
+    _ensureSources$0() {
+      var t1, stdin, t2, t3, $directories, t4, t5, t6, colonArgs, positionalArgs, t7, t8, t9, message, target, source, destination, seen, _0_0, _this = this, _null = null,
+        _s18_ = 'Duplicate source "';
+      if (_this._sourcesToDestinations != null)
+        return;
+      t1 = _this._options;
+      stdin = A._asBool(t1.$index(0, "stdin"));
+      t2 = t1.rest;
+      if (t2.get$length(0) === 0 && !stdin)
+        A.ExecutableOptions__fail("Compile Sass to CSS.");
+      t3 = type$.String;
+      $directories = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+      for (t4 = t2.$ti, t5 = t4._eval$1("ListIterator<ListBase.E>"), t6 = new A.ListIterator(t2, t2.get$length(0), t5), t4 = t4._eval$1("ListBase.E"), colonArgs = false, positionalArgs = false; t6.moveNext$0();) {
+        t7 = t6.__internal$_current;
+        if (t7 == null)
+          t7 = t4._as(t7);
+        t8 = t7.length;
+        if (t8 === 0)
+          A.ExecutableOptions__fail('Invalid argument "".');
+        if (A.stringContainsUnchecked(t7, ":", 0)) {
+          if (t8 > 2) {
+            t9 = t7.charCodeAt(0);
+            if (!(t9 >= 97 && t9 <= 122))
+              t9 = t9 >= 65 && t9 <= 90;
+            else
+              t9 = true;
+            t9 = t9 && t7.charCodeAt(1) === 58;
+          } else
+            t9 = false;
+          if (t9) {
+            if (2 > t8)
+              A.throwExpression(A.RangeError$range(2, 0, t8, _null, _null));
+            t8 = A.stringContainsUnchecked(t7, ":", 2);
+          } else
+            t8 = true;
+        } else
+          t8 = false;
+        if (t8)
+          colonArgs = true;
+        else if (A.dirExists(t7))
+          $directories.add$1(0, t7);
+        else
+          positionalArgs = true;
+      }
+      if (positionalArgs || t2.get$length(0) === 0) {
+        if (colonArgs)
+          A.ExecutableOptions__fail('Positional and ":" arguments may not both be used.');
+        else if (stdin) {
+          if (J.get$length$asx(t2._collection$_source) > 1)
+            A.ExecutableOptions__fail("Only one argument is allowed with --stdin.");
+          else if (A._asBool(t1.$index(0, "update")))
+            A.ExecutableOptions__fail("--update is not allowed with --stdin.");
+          else if (A._asBool(t1.$index(0, "watch")))
+            A.ExecutableOptions__fail("--watch is not allowed with --stdin.");
+          t1 = t2.get$length(0) === 0 ? _null : t2.get$first(t2);
+          t2 = type$.dynamic;
+          t3 = type$.nullable_String;
+          _this._sourcesToDestinations = A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([null, t1], t2, t2), t3, t3);
+        } else {
+          t3 = t2._collection$_source;
+          t4 = J.getInterceptor$asx(t3);
+          if (t4.get$length(t3) > 2)
+            A.ExecutableOptions__fail("Only two positional args may be passed.");
+          else if ($directories._collection$_length !== 0) {
+            message = 'Directory "' + A.S($directories.get$first(0)) + '" may not be a positional arg.';
+            target = t2.get$last(t2);
+            A.ExecutableOptions__fail(J.$eq$($directories.get$first(0), t2.get$first(t2)) && !A.fileExists(target) ? message + ('\nTo compile all CSS in "' + A.S($directories.get$first(0)) + '" to "' + target + '", use `sass ' + A.S($directories.get$first(0)) + ":" + target + "`.") : message);
+          } else {
+            source = J.$eq$(t2.get$first(t2), "-") ? _null : t2.get$first(t2);
+            destination = t4.get$length(t3) === 1 ? _null : t2.get$last(t2);
+            if (destination == null)
+              if (A._asBool(t1.$index(0, "update")))
+                A.ExecutableOptions__fail("--update is not allowed when printing to stdout.");
+              else if (A._asBool(t1.$index(0, "watch")))
+                A.ExecutableOptions__fail("--watch is not allowed when printing to stdout.");
+            t1 = A.PathMap__create(_null, type$.nullable_String);
+            t1.$indexSet(0, source, destination);
+            _this._sourcesToDestinations = new A.UnmodifiableMapView(new A.PathMap(t1, type$.PathMap_nullable_String), type$.UnmodifiableMapView_of_nullable_String_and_nullable_String);
+          }
+        }
+        _this.__ExecutableOptions__sourceDirectoriesToDestinations_F !== $ && A.throwUnnamedLateFieldAI();
+        _this.__ExecutableOptions__sourceDirectoriesToDestinations_F = B.Map_empty;
+        return;
+      }
+      if (stdin)
+        A.ExecutableOptions__fail('--stdin may not be used with ":" arguments.');
+      seen = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+      t1 = A.PathMap__create(_null, t3);
+      t6 = type$.PathMap_String;
+      t3 = A.PathMap__create(_null, t3);
+      for (t2 = new A.ListIterator(t2, t2.get$length(0), t5); t2.moveNext$0();) {
+        t5 = t2.__internal$_current;
+        if (t5 == null)
+          t5 = t4._as(t5);
+        if ($directories.contains$1(0, t5)) {
+          if (!seen.add$1(0, t5))
+            A.ExecutableOptions__fail(_s18_ + t5 + '".');
+          t3.$indexSet(0, t5, t5);
+          t1.addAll$1(0, _this._listSourceDirectory$2(t5, t5));
+          continue;
+        }
+        _0_0 = _this._splitSourceAndDestination$1(t5);
+        source = _0_0._0;
+        destination = _0_0._1;
+        if (!seen.add$1(0, source))
+          A.ExecutableOptions__fail(_s18_ + source + '".');
+        if (source === "-")
+          t1.$indexSet(0, _null, destination);
+        else if (A.dirExists(source)) {
+          t3.$indexSet(0, source, destination);
+          t1.addAll$1(0, _this._listSourceDirectory$2(source, destination));
+        } else
+          t1.$indexSet(0, source, destination);
+      }
+      _this._sourcesToDestinations = new A.UnmodifiableMapView(new A.PathMap(t1, t6), type$.UnmodifiableMapView_of_nullable_String_and_nullable_String);
+      _this.__ExecutableOptions__sourceDirectoriesToDestinations_F !== $ && A.throwUnnamedLateFieldAI();
+      _this.__ExecutableOptions__sourceDirectoriesToDestinations_F = new A.UnmodifiableMapView(new A.PathMap(t3, t6), type$.UnmodifiableMapView_of_nullable_String_and_String);
+    },
+    _splitSourceAndDestination$1(argument) {
+      var t1, i, t2, t3, nextColon;
+      for (t1 = argument.length, i = 0; i < t1; ++i) {
+        if (i === 1) {
+          t2 = i - 1;
+          if (t1 > t2 + 2) {
+            t3 = argument.charCodeAt(t2);
+            if (!(t3 >= 97 && t3 <= 122))
+              t3 = t3 >= 65 && t3 <= 90;
+            else
+              t3 = true;
+            t2 = t3 && argument.charCodeAt(t2 + 1) === 58;
+          } else
+            t2 = false;
+        } else
+          t2 = false;
+        if (t2)
+          continue;
+        if (argument.charCodeAt(i) === 58) {
+          t2 = i + 1;
+          nextColon = B.JSString_methods.indexOf$2(argument, ":", t2);
+          if (nextColon === i + 2)
+            if (t1 > t2 + 2) {
+              t1 = argument.charCodeAt(t2);
+              if (!(t1 >= 97 && t1 <= 122))
+                t1 = t1 >= 65 && t1 <= 90;
+              else
+                t1 = true;
+              t1 = t1 && argument.charCodeAt(t2 + 1) === 58;
+            } else
+              t1 = false;
+          else
+            t1 = false;
+          if ((t1 ? B.JSString_methods.indexOf$2(argument, ":", nextColon + 1) : nextColon) !== -1)
+            A.ExecutableOptions__fail('"' + argument + '" may only contain one ":".');
+          return new A._Record_2(B.JSString_methods.substring$2(argument, 0, i), B.JSString_methods.substring$1(argument, t2));
+        }
+      }
+      throw A.wrapException(A.ArgumentError$('Expected "' + argument + '" to contain a colon.', null));
+    },
+    _listSourceDirectory$2(source, destination) {
+      var t2, t3, t4, t5,
+        t1 = type$.String;
+      t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t2 = J.get$iterator$ax(A.listDir(source, true)), t3 = source === destination; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        if (this._isEntrypoint$1(t4))
+          t5 = !(t3 && A.ParsedPath_ParsedPath$parse(t4, $.$get$context().style)._splitExtension$1(1)[1] === ".css");
+        else
+          t5 = false;
+        if (t5) {
+          t5 = $.$get$context();
+          t1.$indexSet(0, t4, A.join(destination, t5.withoutExtension$1(t5.relative$2$from(t4, source)) + ".css", null));
+        }
+      }
+      return t1;
+    },
+    _isEntrypoint$1(path) {
+      var extension,
+        t1 = $.$get$context().style;
+      if (B.JSString_methods.startsWith$1(A.ParsedPath_ParsedPath$parse(path, t1).get$basename(), "_"))
+        return false;
+      extension = A.ParsedPath_ParsedPath$parse(path, t1)._splitExtension$1(1)[1];
+      return extension === ".scss" || extension === ".sass" || extension === ".css";
+    },
+    get$_writeToStdout() {
+      var t1, _this = this;
+      _this._ensureSources$0();
+      t1 = _this._sourcesToDestinations;
+      if (t1.get$length(t1) === 1) {
+        _this._ensureSources$0();
+        t1 = _this._sourcesToDestinations;
+        t1 = t1.get$values(t1);
+        t1 = t1.get$single(t1) == null;
+      } else
+        t1 = false;
+      return t1;
+    },
+    get$emitSourceMap() {
+      var _this = this,
+        _s10_ = "source-map",
+        _s15_ = "source-map-urls",
+        _s13_ = "embed-sources",
+        _s16_ = "embed-source-map",
+        t1 = _this._options;
+      if (!A._asBool(t1.$index(0, _s10_)))
+        if (t1.wasParsed$1(_s15_))
+          A.ExecutableOptions__fail("--source-map-urls isn't allowed with --no-source-map.");
+        else if (t1.wasParsed$1(_s13_))
+          A.ExecutableOptions__fail("--embed-sources isn't allowed with --no-source-map.");
+        else if (t1.wasParsed$1(_s16_))
+          A.ExecutableOptions__fail("--embed-source-map isn't allowed with --no-source-map.");
+      if (!_this.get$_writeToStdout())
+        return A._asBool(t1.$index(0, _s10_));
+      if (J.$eq$(_this._ifParsed$1(_s15_), "relative"))
+        A.ExecutableOptions__fail("--source-map-urls=relative isn't allowed when printing to stdout.");
+      if (A._asBool(t1.$index(0, _s16_)))
+        return A._asBool(t1.$index(0, _s10_));
+      else if (J.$eq$(_this._ifParsed$1(_s10_), true))
+        A.ExecutableOptions__fail("When printing to stdout, --source-map requires --embed-source-map.");
+      else if (t1.wasParsed$1(_s15_))
+        A.ExecutableOptions__fail("When printing to stdout, --source-map-urls requires --embed-source-map.");
+      else if (A._asBool(t1.$index(0, _s13_)))
+        A.ExecutableOptions__fail("When printing to stdout, --embed-sources requires --embed-source-map.");
+      else
+        return false;
+    },
+    sourceMapUrl$2(_, url, destination) {
+      var t1, path, t2, _null = null;
+      if (url.get$scheme().length !== 0 && url.get$scheme() !== "file")
+        return url;
+      t1 = $.$get$context();
+      path = t1.style.pathFromUri$1(A._parseUri(url));
+      if (J.$eq$(this._options.$index(0, "source-map-urls"), "relative") && !this.get$_writeToStdout()) {
+        destination.toString;
+        t2 = t1.relative$2$from(path, t1.dirname$1(destination));
+      } else
+        t2 = A.absolute(path, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+      return t1.toUri$1(t2);
+    },
+    get$silenceDeprecations(_) {
+      var t2, t3, t4,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(type$.Deprecation);
+      for (t2 = J.get$iterator$ax(type$.List_String._as(this._options.$index(0, "silence-deprecation"))); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t4 = A.Deprecation_fromId(t3);
+        t1.add$1(0, t4 == null ? A.ExecutableOptions__fail('Invalid deprecation "' + t3 + '".') : t4);
+      }
+      return t1;
+    },
+    get$fatalDeprecations(_) {
+      var t1 = this._fatalDeprecations;
+      return t1 == null ? this._fatalDeprecations = new A.ExecutableOptions_fatalDeprecations_closure(this).call$0() : t1;
+    },
+    get$futureDeprecations(_) {
+      var t2, t3, t4,
+        t1 = A.LinkedHashSet_LinkedHashSet$_empty(type$.Deprecation);
+      for (t2 = J.get$iterator$ax(type$.List_String._as(this._options.$index(0, "future-deprecation"))); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t4 = A.Deprecation_fromId(t3);
+        t1.add$1(0, t4 == null ? A.ExecutableOptions__fail('Invalid deprecation "' + t3 + '".') : t4);
+      }
+      return t1;
+    },
+    _ifParsed$1($name) {
+      var t1 = this._options;
+      return t1.wasParsed$1($name) ? t1.$index(0, $name) : null;
+    }
+  };
+  A.ExecutableOptions__parser_closure.prototype = {
+    call$0() {
+      var t1 = type$.String,
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Option),
+        t3 = [],
+        parser = new A.ArgParser(t2, A.LinkedHashMap_LinkedHashMap$_empty(t1, t1), new A.UnmodifiableMapView(t2, type$.UnmodifiableMapView_String_Option), new A.UnmodifiableMapView(A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.ArgParser), type$.UnmodifiableMapView_String_ArgParser), t3, true, null);
+      parser.addOption$2$hide("precision", true);
+      parser.addFlag$2$hide("async", true);
+      t3.push(A.ExecutableOptions__separator("Input and Output"));
+      parser.addFlag$2$help("stdin", "Read the stylesheet from stdin.");
+      parser.addFlag$2$help("indented", "Use the indented syntax for input from stdin.");
+      parser.addMultiOption$5$abbr$help$splitCommas$valueHelp("load-path", "I", "A path to use when resolving imports.\nMay be passed multiple times.", false, "PATH");
+      t2 = type$.JSArray_String;
+      parser.addMultiOption$6$abbr$allowed$allowedHelp$help$valueHelp("pkg-importer", "p", A._setArrayType(["node"], t2), A.LinkedHashMap_LinkedHashMap$_literal(["node", "Load files like Node.js package resolution."], t1, t1), "Built-in importer(s) to use for pkg: URLs.", "TYPE");
+      parser.addOption$6$abbr$allowed$defaultsTo$help$valueHelp("style", "s", A._setArrayType(["expanded", "compressed"], t2), "expanded", "Output style.", "NAME");
+      parser.addFlag$3$defaultsTo$help("charset", true, "Emit a @charset or BOM for CSS with non-ASCII characters.");
+      parser.addFlag$3$defaultsTo$help("error-css", null, "When an error occurs, emit a stylesheet describing it.\nDefaults to true when compiling to a file.");
+      parser.addFlag$3$help$negatable("update", "Only compile out-of-date stylesheets.", false);
+      t3.push(A.ExecutableOptions__separator("Source Maps"));
+      parser.addFlag$3$defaultsTo$help("source-map", true, "Whether to generate source maps.");
+      parser.addOption$4$allowed$defaultsTo$help("source-map-urls", A._setArrayType(["relative", "absolute"], t2), "relative", "How to link from source maps to source files.");
+      parser.addFlag$3$defaultsTo$help("embed-sources", false, "Embed source file contents in source maps.");
+      parser.addFlag$3$defaultsTo$help("embed-source-map", false, "Embed source map contents in CSS.");
+      t3.push(A.ExecutableOptions__separator("Warnings"));
+      parser.addFlag$3$abbr$help("quiet", "q", "Don't print warnings.");
+      parser.addFlag$2$help("quiet-deps", "Don't print compiler warnings from dependencies.\nStylesheets imported through load paths count as dependencies.");
+      parser.addFlag$2$help("verbose", "Print all deprecation warnings even when they're repetitive.");
+      parser.addMultiOption$2$help("fatal-deprecation", "Deprecations to treat as errors. You may also pass a Sass\nversion to include any behavior deprecated in or before it.\nSee https://sass-lang.com/documentation/breaking-changes for \na complete list.");
+      parser.addMultiOption$2$help("silence-deprecation", "Deprecations to ignore.");
+      parser.addMultiOption$2$help("future-deprecation", "Opt in to a deprecation early.");
+      t3.push(A.ExecutableOptions__separator("Other"));
+      parser.addFlag$4$abbr$help$negatable("watch", "w", "Watch stylesheets and recompile when they change.", false);
+      parser.addFlag$2$help("poll", "Manually check for changes rather than using a native watcher.\nOnly valid with --watch.");
+      parser.addFlag$2$help("stop-on-error", "Don't compile more files once an error is encountered.");
+      parser.addFlag$4$abbr$help$negatable("interactive", "i", "Run an interactive SassScript shell.", false);
+      parser.addFlag$3$abbr$help("color", "c", "Whether to use terminal colors for messages.");
+      parser.addFlag$2$help("unicode", "Whether to use Unicode characters for messages.");
+      parser.addFlag$2$help("trace", "Print full Dart stack traces for exceptions.");
+      parser.addFlag$4$abbr$help$negatable("help", "h", "Print this usage information.", false);
+      parser.addFlag$3$help$negatable("version", "Print the version of Dart Sass.", false);
+      return parser;
+    },
+    $signature: 328
+  };
+  A.ExecutableOptions_interactive_closure.prototype = {
+    call$0() {
+      var _0_0,
+        t1 = this.$this._options;
+      if (!A._asBool(t1.$index(0, "interactive")))
+        return false;
+      _0_0 = A.IterableExtension_firstWhereOrNull(A._setArrayType(["stdin", "indented", "style", "source-map", "source-map-urls", "embed-sources", "embed-source-map", "update", "watch"], type$.JSArray_String), t1.get$wasParsed());
+      if (_0_0 != null)
+        throw A.wrapException(A.UsageException$("--" + _0_0 + " isn't allowed with --interactive."));
+      return true;
+    },
+    $signature: 30
+  };
+  A.ExecutableOptions_emitErrorCss_closure.prototype = {
+    call$1(destination) {
+      return destination != null;
+    },
+    $signature: 257
+  };
+  A.ExecutableOptions_fatalDeprecations_closure.prototype = {
+    call$0() {
+      var id, argVersion, sassVersion, t1, t2, _0_0, exception,
+        deprecations = A.LinkedHashSet_LinkedHashSet$_empty(type$.Deprecation);
+      for (t1 = J.get$iterator$ax(type$.List_String._as(this.$this._options.$index(0, "fatal-deprecation"))), t2 = type$.FormatException; t1.moveNext$0();) {
+        id = t1.get$current(t1);
+        _0_0 = A.Deprecation_fromId(id);
+        if (_0_0 != null) {
+          J.add$1$ax(deprecations, _0_0);
+          continue;
+        }
+        try {
+          argVersion = A.Version_Version$parse(id);
+          sassVersion = A.Version_Version$parse("1.77.4");
+          if (J.compareTo$1$ns(argVersion, sassVersion) > 0)
+            A.ExecutableOptions__fail("Invalid version " + A.S(argVersion) + ". --fatal-deprecation requires a version less than or equal to the current Dart Sass version.");
+          J.addAll$1$ax(deprecations, A.Deprecation_forVersion(argVersion));
+        } catch (exception) {
+          if (t2._is(A.unwrapException(exception)))
+            A.ExecutableOptions__fail('Invalid deprecation "' + A.S(id) + '".');
+          else
+            throw exception;
+        }
+      }
+      return deprecations;
+    },
+    $signature: 330
+  };
+  A.UsageException.prototype = {$isException: 1,
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.watch_closure.prototype = {
+    call$1(dir) {
+      for (; !A.dirExists(dir);)
+        dir = $.$get$context().dirname$1(dir);
+      return this.dirWatcher.watch$1(0, dir);
+    },
+    $signature: 332
+  };
+  A._Watcher.prototype = {
+    _delete$1(path) {
+      var buffer, t1, exception;
+      try {
+        A.deleteFile(path);
+        buffer = new A.StringBuffer("");
+        t1 = this._watch$_options;
+        if (t1.get$color())
+          buffer._contents += "\x1b[33m";
+        buffer._contents += "Deleted " + path + ".";
+        if (t1.get$color())
+          buffer._contents += "\x1b[0m";
+        A.print(buffer);
+      } catch (exception) {
+        if (!(A.unwrapException(exception) instanceof A.FileSystemException))
+          throw exception;
+      }
+    },
+    watch$1(_, watcher) {
+      return this.watch$body$_Watcher(0, watcher);
+    },
+    watch$body$_Watcher(_, watcher) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, $event, extension, success, success0, success1, t2, t1;
+      var $async$watch$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = watcher._group.__StreamGroup__controller_A;
+              t1 === $ && A.throwUnnamedLateFieldNI();
+              t1 = new A._StreamIterator(A.checkNotNullable($async$self._debounceEvents$1(new A._ControllerStream(t1, A._instanceType(t1)._eval$1("_ControllerStream<1>"))), "stream", type$.Object));
+              $async$handler = 3;
+              t2 = $async$self._watch$_options._options;
+            case 6:
+              // for condition
+              $async$goto = 8;
+              return A._asyncAwait(t1.moveNext$0(), $async$watch$1);
+            case 8:
+              // returning from await.
+              if (!$async$result) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              $event = t1.get$current(0);
+              extension = A.ParsedPath_ParsedPath$parse($event.path, $.$get$context().style)._splitExtension$1(1)[1];
+              if (!J.$eq$(extension, ".sass") && !J.$eq$(extension, ".scss") && !J.$eq$(extension, ".css")) {
+                // goto for condition
+                $async$goto = 6;
+                break;
+              }
+            case 9:
+              // switch
+              switch ($event.type) {
+                case B.ChangeType_modify:
+                  // goto case
+                  $async$goto = 11;
+                  break;
+                case B.ChangeType_add:
+                  // goto case
+                  $async$goto = 12;
+                  break;
+                case B.ChangeType_remove:
+                  // goto case
+                  $async$goto = 13;
+                  break;
+                default:
+                  // goto after switch
+                  $async$goto = 10;
+                  break;
+              }
+              break;
+            case 11:
+              // case
+              $async$goto = 14;
+              return A._asyncAwait($async$self._handleModify$1($event.path), $async$watch$1);
+            case 14:
+              // returning from await.
+              success = $async$result;
+              if (!success && A._asBool(t2.$index(0, "stop-on-error"))) {
+                $async$next = [1];
+                // goto finally
+                $async$goto = 4;
+                break;
+              }
+              // goto after switch
+              $async$goto = 10;
+              break;
+            case 12:
+              // case
+              $async$goto = 15;
+              return A._asyncAwait($async$self._handleAdd$1($event.path), $async$watch$1);
+            case 15:
+              // returning from await.
+              success0 = $async$result;
+              if (!success0 && A._asBool(t2.$index(0, "stop-on-error"))) {
+                $async$next = [1];
+                // goto finally
+                $async$goto = 4;
+                break;
+              }
+              // goto after switch
+              $async$goto = 10;
+              break;
+            case 13:
+              // case
+              $async$goto = 16;
+              return A._asyncAwait($async$self._handleRemove$1($event.path), $async$watch$1);
+            case 16:
+              // returning from await.
+              success1 = $async$result;
+              if (!success1 && A._asBool(t2.$index(0, "stop-on-error"))) {
+                $async$next = [1];
+                // goto finally
+                $async$goto = 4;
+                break;
+              }
+              // goto after switch
+              $async$goto = 10;
+              break;
+            case 10:
+              // after switch
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 7:
+              // after for
+              $async$next.push(5);
+              // goto finally
+              $async$goto = 4;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [2];
+            case 4:
+              // finally
+              $async$handler = 2;
+              $async$goto = 17;
+              return A._asyncAwait(t1.cancel$0(), $async$watch$1);
+            case 17:
+              // returning from await.
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 5:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$watch$1, $async$completer);
+    },
+    _handleModify$1(path) {
+      return this._handleModify$body$_Watcher(path);
+    },
+    _handleModify$body$_Watcher(path) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.bool),
+        $async$returnValue, $async$self = this, t2, t0, url, _0_0, t1;
+      var $async$_handleModify$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = A.isNodeJs() ? self.process : null;
+              if (!J.$eq$(t1 == null ? null : J.get$platform$x(t1), "win32")) {
+                t1 = A.isNodeJs() ? self.process : null;
+                t1 = J.$eq$(t1 == null ? null : J.get$platform$x(t1), "darwin");
+              } else
+                t1 = true;
+              if (t1) {
+                t1 = $.$get$context();
+                t2 = A._realCasePath(A.absolute(t1.normalize$1(path), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                t0 = t2;
+                t2 = t1;
+                t1 = t0;
+              } else {
+                t1 = $.$get$context();
+                t2 = t1.canonicalize$1(0, path);
+                t0 = t2;
+                t2 = t1;
+                t1 = t0;
+              }
+              url = t2.toUri$1(t1);
+              t1 = $async$self._graph;
+              _0_0 = t1._nodes.$index(0, url);
+              $async$goto = _0_0 != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              t1.reload$1(url);
+              $async$goto = 6;
+              return A._asyncAwait($async$self._recompileDownstream$1(A._setArrayType([_0_0], type$.JSArray_StylesheetNode)), $async$_handleModify$1);
+            case 6:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$returnValue = $async$self._handleAdd$1(path);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_handleModify$1, $async$completer);
+    },
+    _handleAdd$1(path) {
+      return this._handleAdd$body$_Watcher(path);
+    },
+    _handleAdd$body$_Watcher(path) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.bool),
+        $async$returnValue, $async$self = this, t1, success, t2, t3, t0, destination;
+      var $async$_handleAdd$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              destination = $async$self._destinationFor$1(path);
+              $async$goto = destination != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              t1 = type$.nullable_String;
+              $async$goto = 6;
+              return A._asyncAwait(A.compileStylesheets($async$self._watch$_options, $async$self._graph, A.LinkedHashMap_LinkedHashMap$_literal([path, destination], t1, t1), true), $async$_handleAdd$1);
+            case 6:
+              // returning from await.
+              success = $async$result;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              success = true;
+            case 4:
+              // join
+              t1 = $.$get$FilesystemImporter_cwd();
+              t2 = A.isNodeJs() ? self.process : null;
+              if (!J.$eq$(t2 == null ? null : J.get$platform$x(t2), "win32")) {
+                t2 = A.isNodeJs() ? self.process : null;
+                t2 = J.$eq$(t2 == null ? null : J.get$platform$x(t2), "darwin");
+              } else
+                t2 = true;
+              if (t2) {
+                t2 = $.$get$context();
+                t3 = A._realCasePath(A.absolute(t2.normalize$1(path), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                t0 = t3;
+                t3 = t2;
+                t2 = t0;
+              } else {
+                t2 = $.$get$context();
+                t3 = t2.canonicalize$1(0, path);
+                t0 = t3;
+                t3 = t2;
+                t2 = t0;
+              }
+              $async$goto = 7;
+              return A._asyncAwait($async$self._recompileDownstream$1($async$self._graph.addCanonical$3(t1, t3.toUri$1(t2), t3.toUri$1(path))), $async$_handleAdd$1);
+            case 7:
+              // returning from await.
+              $async$returnValue = $async$result && success;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_handleAdd$1, $async$completer);
+    },
+    _handleRemove$1(path) {
+      return this._handleRemove$body$_Watcher(path);
+    },
+    _handleRemove$body$_Watcher(path) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.bool),
+        $async$returnValue, $async$self = this, t2, t0, url, _0_0, t3, node, toRecompile, t1;
+      var $async$_handleRemove$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = A.isNodeJs() ? self.process : null;
+              if (!J.$eq$(t1 == null ? null : J.get$platform$x(t1), "win32")) {
+                t1 = A.isNodeJs() ? self.process : null;
+                t1 = J.$eq$(t1 == null ? null : J.get$platform$x(t1), "darwin");
+              } else
+                t1 = true;
+              if (t1) {
+                t1 = $.$get$context();
+                t2 = A._realCasePath(A.absolute(t1.normalize$1(path), null, null, null, null, null, null, null, null, null, null, null, null, null, null));
+                t0 = t2;
+                t2 = t1;
+                t1 = t0;
+              } else {
+                t1 = $.$get$context();
+                t2 = t1.canonicalize$1(0, path);
+                t0 = t2;
+                t2 = t1;
+                t1 = t0;
+              }
+              url = t2.toUri$1(t1);
+              t1 = $async$self._graph;
+              t2 = t1._nodes;
+              if (t2.containsKey$1(url)) {
+                _0_0 = $async$self._destinationFor$1(path);
+                if (_0_0 != null)
+                  $async$self._delete$1(_0_0);
+              }
+              t3 = $.$get$FilesystemImporter_cwd();
+              node = t2.remove$1(0, url);
+              t2 = node != null;
+              if (t2) {
+                t1._transitiveModificationTimes.clear$0(0);
+                t1.importCache.clearImport$1(url);
+                node._stylesheet_graph$_remove$0();
+              }
+              toRecompile = t1._recanonicalizeImports$2(t3, url);
+              if (t2)
+                toRecompile.addAll$1(0, node._downstream);
+              $async$goto = 3;
+              return A._asyncAwait($async$self._recompileDownstream$1(toRecompile), $async$_handleRemove$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_handleRemove$1, $async$completer);
+    },
+    _debounceEvents$1(events) {
+      var t1 = type$.WatchEvent;
+      t1 = A.RateLimit__debounceAggregate(events, A.Duration$(25), A.instantiate1(A.rate_limit___collect$closure(), t1), false, true, t1, type$.List_WatchEvent);
+      return new A._ExpandStream(new A._Watcher__debounceEvents_closure(), t1, A._instanceType(t1)._eval$1("_ExpandStream<Stream.T,WatchEvent>"));
+    },
+    _recompileDownstream$1(nodes) {
+      return this._recompileDownstream$body$_Watcher(nodes);
+    },
+    _recompileDownstream$body$_Watcher(nodes) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.bool),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, t5, allSucceeded, t6, t7, t8, sourcesToDestinations, success, _i, seen;
+      var $async$_recompileDownstream$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              seen = A.LinkedHashSet_LinkedHashSet$_empty(type$.StylesheetNode);
+              t1 = type$.UnmodifiableSetView_StylesheetNode, t2 = type$.JSArray_StylesheetNode, t3 = $async$self._watch$_options, t4 = $async$self._graph, t5 = t3._options, allSucceeded = true;
+            case 3:
+              // for condition
+              if (!(t6 = J.getInterceptor$asx(nodes), t6.get$isNotEmpty(nodes))) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              t7 = A._setArrayType([], t2);
+              for (t6 = t6.get$iterator(nodes); t6.moveNext$0();) {
+                t8 = t6.get$current(t6);
+                if (seen.add$1(0, t8))
+                  t7.push(t8);
+              }
+              sourcesToDestinations = $async$self._sourceEntrypointsToDestinations$1(t7);
+              $async$goto = sourcesToDestinations.__js_helper$_length !== 0 ? 6 : 7;
+              break;
+            case 6:
+              // then
+              $async$goto = 8;
+              return A._asyncAwait(A.compileStylesheets(t3, t4, sourcesToDestinations, true), $async$_recompileDownstream$1);
+            case 8:
+              // returning from await.
+              success = $async$result;
+              if (!success && A._asBool(t5.$index(0, "stop-on-error"))) {
+                $async$returnValue = false;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              allSucceeded = allSucceeded && success;
+            case 7:
+              // join
+              t6 = A._setArrayType([], t2);
+              for (t8 = t7.length, _i = 0; _i < t7.length; t7.length === t8 || (0, A.throwConcurrentModificationError)(t7), ++_i)
+                B.JSArray_methods.addAll$1(t6, new A.UnmodifiableSetView0(t7[_i]._downstream, t1));
+            case 4:
+              // for update
+              nodes = t6;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = allSucceeded;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_recompileDownstream$1, $async$completer);
+    },
+    _sourceEntrypointsToDestinations$1(nodes) {
+      var _i, url, source, _0_0,
+        t1 = type$.String,
+        entrypoints = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t1 = nodes.length, _i = 0; _i < nodes.length; nodes.length === t1 || (0, A.throwConcurrentModificationError)(nodes), ++_i) {
+        url = nodes[_i].canonicalUrl;
+        if (url.get$scheme() !== "file")
+          continue;
+        source = $.$get$context().style.pathFromUri$1(A._parseUri(url));
+        _0_0 = this._destinationFor$1(source);
+        if (_0_0 != null)
+          entrypoints.$indexSet(0, source, _0_0);
+      }
+      return entrypoints;
+    },
+    _destinationFor$1(source) {
+      var t2, _0_0, t3, sourceDir, destinationDir, destination,
+        t1 = this._watch$_options;
+      t1._ensureSources$0();
+      t2 = type$.String;
+      _0_0 = t1._sourcesToDestinations.cast$2$0(0, t2, t2).$index(0, source);
+      if (_0_0 != null)
+        return _0_0;
+      t3 = $.$get$context();
+      if (B.JSString_methods.startsWith$1(A.ParsedPath_ParsedPath$parse(source, t3.style).get$basename(), "_"))
+        return null;
+      t1._ensureSources$0();
+      t1 = t1.__ExecutableOptions__sourceDirectoriesToDestinations_F;
+      t1 === $ && A.throwUnnamedLateFieldNI();
+      t2 = A.MapExtensions_get_pairs(t1.cast$2$0(0, t2, t2), t2, t2);
+      t2 = t2.get$iterator(t2);
+      for (; t2.moveNext$0();) {
+        t1 = t2.get$current(t2);
+        sourceDir = t1._0;
+        destinationDir = t1._1;
+        if (t3._isWithinOrEquals$2(sourceDir, source) !== B._PathRelation_within)
+          continue;
+        destination = A.join(destinationDir, t3.withoutExtension$1(t3.relative$2$from(source, sourceDir)) + ".css", null);
+        if (t3._isWithinOrEquals$2(destination, source) !== B._PathRelation_equal)
+          return destination;
+      }
+      return null;
+    }
+  };
+  A._Watcher__debounceEvents_closure.prototype = {
+    call$1(buffer) {
+      var t3, t4, t5, oldType, newType, _1_1,
+        t1 = type$.ChangeType,
+        t2 = A.PathMap__create(null, t1);
+      for (t3 = J.get$iterator$ax(buffer); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t5 = t4.path;
+        oldType = t2.$index(0, t5);
+        newType = t4.type;
+        $label0$0: {
+          if (oldType == null) {
+            t4 = newType;
+            break $label0$0;
+          }
+          if (B.ChangeType_remove === newType) {
+            t4 = B.ChangeType_remove;
+            break $label0$0;
+          }
+          if (B.ChangeType_add === oldType) {
+            t4 = B.ChangeType_add;
+            break $label0$0;
+          }
+          t4 = B.ChangeType_modify;
+          break $label0$0;
+        }
+        t2.$indexSet(0, t5, t4);
+      }
+      t3 = A._setArrayType([], type$.JSArray_WatchEvent);
+      for (t1 = A.MapExtensions_get_pairs(new A.PathMap(t2, type$.PathMap_ChangeType), type$.nullable_String, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        _1_1 = t2._0;
+        t4 = _1_1;
+        t4.toString;
+        _1_1.toString;
+        t3.push(new A.WatchEvent(t2._1, _1_1));
+      }
+      return t3;
+    },
+    $signature: 334
+  };
+  A.EmptyExtensionStore.prototype = {
+    get$_extensions() {
+      return A.throwExpression(A.NoSuchMethodError_NoSuchMethodError$withInvocation(this, A.JSInvocationMirror$(B.Symbol__extensions, "get$_empty_extension_store$_extensions", 1, [], [], 0)));
+    },
+    get$_sourceSpecificity() {
+      return A.throwExpression(A.NoSuchMethodError_NoSuchMethodError$withInvocation(this, A.JSInvocationMirror$(B.Symbol__sourceSpecificity, "get$_empty_extension_store$_sourceSpecificity", 1, [], [], 0)));
+    },
+    get$isEmpty(_) {
+      return true;
+    },
+    get$simpleSelectors() {
+      return B.C_EmptyUnmodifiableSet;
+    },
+    extensionsWhereTarget$1(callback) {
+      return B.List_empty5;
+    },
+    addExtensions$1(extenders) {
+      throw A.wrapException(A.UnsupportedError$(string$.addExt));
+    },
+    clone$0() {
+      return B.Record2_EmptyExtensionStore_Map_empty;
+    },
+    $isExtensionStore: 1
+  };
+  A.Extension.prototype = {
+    toString$0(_) {
+      var t1 = this.extender.toString$0(0),
+        t2 = this.target.toString$0(0),
+        t3 = this.isOptional ? " !optional" : "";
+      return t1 + " {@extend " + t2 + t3 + "}";
+    }
+  };
+  A.Extender.prototype = {
+    assertCompatibleMediaContext$1(mediaContext) {
+      var expectedMediaContext,
+        extension = this._extension;
+      if (extension == null)
+        return;
+      expectedMediaContext = extension.mediaContext;
+      if (expectedMediaContext == null)
+        return;
+      if (mediaContext != null && B.C_ListEquality.equals$2(0, expectedMediaContext, mediaContext))
+        return;
+      throw A.wrapException(A.SassException$(string$.You_ma, extension.span, null));
+    },
+    toString$0(_) {
+      return A.serializeSelector(this.selector, true);
+    }
+  };
+  A.ExtensionStore.prototype = {
+    get$isEmpty(_) {
+      return this._extensions.__js_helper$_length === 0;
+    },
+    get$simpleSelectors() {
+      return new A.MapKeySet(this._selectors, type$.MapKeySet_SimpleSelector);
+    },
+    extensionsWhereTarget$1(callback) {
+      return new A._SyncStarIterable(this.extensionsWhereTarget$body$ExtensionStore(callback), type$._SyncStarIterable_Extension);
+    },
+    extensionsWhereTarget$body$ExtensionStore($async$callback) {
+      var $async$self = this;
+      return function() {
+        var callback = $async$callback;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, t2, simple, sources, t3;
+        return function $async$extensionsWhereTarget$1($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = A.MapExtensions_get_pairs($async$self._extensions, type$.SimpleSelector, type$.Map_ComplexSelector_Extension), t1 = t1.get$iterator(t1);
+              case 2:
+                // for condition
+                if (!t1.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 3;
+                  break;
+                }
+                t2 = t1.get$current(t1);
+                simple = t2._0;
+                sources = t2._1;
+                if (!callback.call$1(simple)) {
+                  // goto for condition
+                  $async$goto = 2;
+                  break;
+                }
+                t2 = sources.get$values(sources), t2 = t2.get$iterator(t2);
+              case 4:
+                // for condition
+                if (!t2.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 5;
+                  break;
+                }
+                t3 = t2.get$current(t2);
+                $async$goto = t3 instanceof A.MergedExtension ? 6 : 8;
+                break;
+              case 6:
+                // then
+                t3 = t3.unmerge$0();
+                $async$goto = 9;
+                return $async$iterator._yieldStar$1(new A.WhereIterable(t3, new A.ExtensionStore_extensionsWhereTarget_closure(), t3.$ti._eval$1("WhereIterable<Iterable.E>")));
+              case 9:
+                // after yield
+                // goto join
+                $async$goto = 7;
+                break;
+              case 8:
+                // else
+                $async$goto = !t3.isOptional ? 10 : 11;
+                break;
+              case 10:
+                // then
+                $async$goto = 12;
+                return $async$iterator._async$_current = t3, 1;
+              case 12:
+                // after yield
+              case 11:
+                // join
+              case 7:
+                // join
+                // goto for condition
+                $async$goto = 4;
+                break;
+              case 5:
+                // after for
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 3:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    addSelector$2(selector, mediaContext) {
+      var originalSelector, error, stackTrace, t1, exception, t2, t3, t4, modifiableSelector, _this = this;
+      selector = selector;
+      originalSelector = selector;
+      if (!originalSelector.accept$1(B._IsInvisibleVisitor_true))
+        _this._originals.addAll$1(0, originalSelector.components);
+      t1 = _this._extensions;
+      if (t1.__js_helper$_length !== 0)
+        try {
+          selector = _this._extendList$3(originalSelector, t1, mediaContext);
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (t1 instanceof A.SassException) {
+            error = t1;
+            stackTrace = A.getTraceFromException(exception);
+            t1 = error;
+            t2 = J.getInterceptor$z(t1);
+            t1 = A.SourceSpanException.prototype.get$span.call(t2, t1).message$1(0, "");
+            t2 = error._span_exception$_message;
+            t3 = error;
+            t4 = J.getInterceptor$z(t3);
+            t3 = A.SourceSpanException.prototype.get$span.call(t4, t3);
+            A.throwWithTrace(new A.SassException(B.Set_empty, "From " + t1 + "\n" + t2, t3), error, stackTrace);
+          } else
+            throw exception;
+        }
+      modifiableSelector = new A.ModifiableBox(selector, type$.ModifiableBox_SelectorList);
+      if (mediaContext != null)
+        _this._mediaContexts.$indexSet(0, modifiableSelector, mediaContext);
+      _this._registerSelector$2(selector, modifiableSelector);
+      return new A.Box(modifiableSelector, type$.Box_SelectorList);
+    },
+    _registerSelector$2(list, selector) {
+      var t1, t2, t3, t4, _i, t5, t6, _i0, t7, t8, _i1, simple, _0_2_isSet, _0_2, t9, selectorInPseudo;
+      for (t1 = list.components, t2 = t1.length, t3 = this._selectors, t4 = type$.SelectorList, _i = 0; _i < t2; ++_i)
+        for (t5 = t1[_i].components, t6 = t5.length, _i0 = 0; _i0 < t6; ++_i0)
+          for (t7 = t5[_i0].selector.components, t8 = t7.length, _i1 = 0; _i1 < t8; ++_i1) {
+            simple = t7[_i1];
+            J.add$1$ax(t3.putIfAbsent$2(simple, new A.ExtensionStore__registerSelector_closure()), selector);
+            _0_2_isSet = simple instanceof A.PseudoSelector;
+            if (_0_2_isSet) {
+              _0_2 = simple.selector;
+              t9 = _0_2 != null;
+            } else {
+              _0_2 = null;
+              t9 = false;
+            }
+            if (t9) {
+              selectorInPseudo = _0_2_isSet ? _0_2 : simple.selector;
+              this._registerSelector$2(selectorInPseudo == null ? t4._as(selectorInPseudo) : selectorInPseudo, selector);
+            }
+          }
+    },
+    addExtension$4(extender, target, extend, mediaContext) {
+      var t2, t3, t4, t5, t6, t7, t8, t9, t10, newExtensions, _i, complex, t11, extension, _0_0, t12, newExtensionsByTarget, additionalExtensions, _this = this,
+        selectors = _this._selectors.$index(0, target),
+        t1 = _this._extensionsByExtender,
+        existingExtensions = t1.$index(0, target),
+        sources = _this._extensions.putIfAbsent$2(target, new A.ExtensionStore_addExtension_closure());
+      for (t2 = extender.components, t3 = t2.length, t4 = selectors == null, t5 = _this._sourceSpecificity, t6 = extend.span, t7 = extend.isOptional, t8 = existingExtensions != null, t9 = type$.ComplexSelector, t10 = type$.Extension, newExtensions = null, _i = 0; _i < t3; ++_i) {
+        complex = t2[_i];
+        if (complex.accept$1(B.C__IsUselessVisitor))
+          continue;
+        complex.get$specificity();
+        t11 = new A.Extender(complex, false);
+        extension = t11._extension = new A.Extension(t11, target, mediaContext, t7, t6);
+        _0_0 = sources.$index(0, complex);
+        if (_0_0 != null) {
+          sources.$indexSet(0, complex, A.MergedExtension_merge(_0_0, extension));
+          continue;
+        }
+        sources.$indexSet(0, complex, extension);
+        for (t11 = new A._SyncStarIterator(_this._simpleSelectors$1(complex)._outerHelper()); t11.moveNext$0();) {
+          t12 = t11._async$_current;
+          J.add$1$ax(t1.putIfAbsent$2(t12, new A.ExtensionStore_addExtension_closure0()), extension);
+          t5.putIfAbsent$2(t12, new A.ExtensionStore_addExtension_closure1(complex));
+        }
+        if (!t4 || t8) {
+          if (newExtensions == null)
+            newExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t9, t10);
+          newExtensions.$indexSet(0, complex, extension);
+        }
+      }
+      if (newExtensions == null)
+        return;
+      t1 = type$.SimpleSelector;
+      newExtensionsByTarget = A.LinkedHashMap_LinkedHashMap$_literal([target, newExtensions], t1, type$.Map_ComplexSelector_Extension);
+      if (t8) {
+        additionalExtensions = _this._extendExistingExtensions$2(existingExtensions, newExtensionsByTarget);
+        if (additionalExtensions != null)
+          A.mapAddAll2(newExtensionsByTarget, additionalExtensions, t1, t9, t10);
+      }
+      if (!t4)
+        _this._extendExistingSelectors$2(selectors, newExtensionsByTarget);
+    },
+    _simpleSelectors$1(complex) {
+      return new A._SyncStarIterable(this._simpleSelectors$body$ExtensionStore(complex), type$._SyncStarIterable_SimpleSelector);
+    },
+    _simpleSelectors$body$ExtensionStore($async$complex) {
+      var $async$self = this;
+      return function() {
+        var complex = $async$complex;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, t2, t3, _i, t4, t5, _i0, simple, _0_2_isSet, _0_2, t6, selector, t7, _i1;
+        return function $async$_simpleSelectors$1($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = complex.components, t2 = t1.length, t3 = type$.SelectorList, _i = 0;
+              case 2:
+                // for condition
+                if (!(_i < t2)) {
+                  // goto after for
+                  $async$goto = 4;
+                  break;
+                }
+                t4 = t1[_i].selector.components, t5 = t4.length, _i0 = 0;
+              case 5:
+                // for condition
+                if (!(_i0 < t5)) {
+                  // goto after for
+                  $async$goto = 7;
+                  break;
+                }
+                simple = t4[_i0];
+                $async$goto = 8;
+                return $async$iterator._async$_current = simple, 1;
+              case 8:
+                // after yield
+                _0_2_isSet = simple instanceof A.PseudoSelector;
+                if (_0_2_isSet) {
+                  _0_2 = simple.selector;
+                  t6 = _0_2 != null;
+                } else {
+                  _0_2 = null;
+                  t6 = false;
+                }
+                $async$goto = t6 ? 9 : 10;
+                break;
+              case 9:
+                // then
+                selector = _0_2_isSet ? _0_2 : simple.selector;
+                t6 = (selector == null ? t3._as(selector) : selector).components, t7 = t6.length, _i1 = 0;
+              case 11:
+                // for condition
+                if (!(_i1 < t7)) {
+                  // goto after for
+                  $async$goto = 13;
+                  break;
+                }
+                $async$goto = 14;
+                return $async$iterator._yieldStar$1($async$self._simpleSelectors$1(t6[_i1]));
+              case 14:
+                // after yield
+              case 12:
+                // for update
+                ++_i1;
+                // goto for condition
+                $async$goto = 11;
+                break;
+              case 13:
+                // after for
+              case 10:
+                // join
+              case 6:
+                // for update
+                ++_i0;
+                // goto for condition
+                $async$goto = 5;
+                break;
+              case 7:
+                // after for
+              case 3:
+                // for update
+                ++_i;
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 4:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    _extendExistingExtensions$2(extensions, newExtensions) {
+      var extension, selectors, error, stackTrace, t1, t2, t3, t4, t5, t6, additionalExtensions, _i, t7, exception, t8, t9, selectors0, t10, t11, t12, t13, t14, withExtender, _0_0, _i0, _i1;
+      for (t1 = J.toList$0$ax(extensions), t2 = t1.length, t3 = this._extensionsByExtender, t4 = type$.SimpleSelector, t5 = type$.Map_ComplexSelector_Extension, t6 = this._extensions, additionalExtensions = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        extension = t1[_i];
+        t7 = t6.$index(0, extension.target);
+        t7.toString;
+        selectors = null;
+        try {
+          selectors = this._extendComplex$3(extension.extender.selector, newExtensions, extension.mediaContext);
+          if (selectors == null)
+            continue;
+        } catch (exception) {
+          t8 = A.unwrapException(exception);
+          if (t8 instanceof A.SassException) {
+            error = t8;
+            stackTrace = A.getTraceFromException(exception);
+            A.throwWithTrace(error.withAdditionalSpan$2(extension.extender.selector.span, "target selector"), error, stackTrace);
+          } else
+            throw exception;
+        }
+        t8 = J.get$first$ax(selectors);
+        t9 = extension.extender.selector;
+        if (B.C_ListEquality.equals$2(0, t8.leadingCombinators, t9.leadingCombinators) && B.C_ListEquality.equals$2(0, t8.components, t9.components)) {
+          t8 = selectors;
+          t9 = A._arrayInstanceType(t8);
+          selectors0 = new A.SubListIterable(t8, 1, null, t9._eval$1("SubListIterable<1>"));
+          selectors0.SubListIterable$3(t8, 1, null, t9._precomputed1);
+          selectors = selectors0;
+        }
+        for (t8 = J.get$iterator$ax(selectors); t8.moveNext$0();) {
+          t9 = t8.get$current(t8);
+          t10 = extension;
+          t11 = t10.target;
+          t12 = t10.span;
+          t13 = t10.mediaContext;
+          t10 = t10.isOptional;
+          t9.get$specificity();
+          t14 = new A.Extender(t9, false);
+          withExtender = t14._extension = new A.Extension(t14, t11, t13, t10, t12);
+          _0_0 = t7.$index(0, t9);
+          if (_0_0 != null)
+            t7.$indexSet(0, t9, A.MergedExtension_merge(_0_0, withExtender));
+          else {
+            t7.$indexSet(0, t9, withExtender);
+            for (t10 = t9.components, t11 = t10.length, _i0 = 0; _i0 < t11; ++_i0)
+              for (t12 = t10[_i0].selector.components, t13 = t12.length, _i1 = 0; _i1 < t13; ++_i1)
+                J.add$1$ax(t3.putIfAbsent$2(t12[_i1], new A.ExtensionStore__extendExistingExtensions_closure()), withExtender);
+            if (newExtensions.containsKey$1(extension.target)) {
+              if (additionalExtensions == null)
+                additionalExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t4, t5);
+              additionalExtensions.putIfAbsent$2(extension.target, new A.ExtensionStore__extendExistingExtensions_closure0()).$indexSet(0, t9, withExtender);
+            }
+          }
+        }
+      }
+      return additionalExtensions;
+    },
+    _extendExistingSelectors$2(selectors, newExtensions) {
+      var selector, error, stackTrace, t1, t2, oldValue, exception, t3, t4, t5, t6;
+      for (t1 = selectors.get$iterator(selectors), t2 = this._mediaContexts; t1.moveNext$0();) {
+        selector = t1.get$current(t1);
+        oldValue = selector.value;
+        try {
+          selector.value = this._extendList$3(selector.value, newExtensions, t2.$index(0, selector));
+        } catch (exception) {
+          t3 = A.unwrapException(exception);
+          if (t3 instanceof A.SassException) {
+            error = t3;
+            stackTrace = A.getTraceFromException(exception);
+            t3 = selector.value.span.message$1(0, "");
+            t4 = error._span_exception$_message;
+            t5 = error;
+            t6 = J.getInterceptor$z(t5);
+            t5 = A.SourceSpanException.prototype.get$span.call(t6, t5);
+            A.throwWithTrace(new A.SassException(B.Set_empty, "From " + t3 + "\n" + t4, t5), error, stackTrace);
+          } else
+            throw exception;
+        }
+        if (oldValue === selector.value)
+          continue;
+        this._registerSelector$2(selector.value, selector);
+      }
+    },
+    addExtensions$1(extensionStores) {
+      var t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, newExtensions, selectorsToExtend, extensionsToExtend, t12, t13, target, newSources, first, extensionsForTarget, t14, selectorsForTarget, t15, _2_0, t16, extender, extension, _this = this, _null = null;
+      for (t1 = J.get$iterator$ax(extensionStores), t2 = type$.SimpleSelector, t3 = type$.Map_ComplexSelector_Extension, t4 = _this._extensions, t5 = type$.ComplexSelector, t6 = type$.Extension, t7 = _this._selectors, t8 = _this._extensionsByExtender, t9 = type$.JSArray_Extension, t10 = type$.ModifiableBox_SelectorList, t11 = _this._sourceSpecificity, newExtensions = _null, selectorsToExtend = newExtensions, extensionsToExtend = selectorsToExtend; t1.moveNext$0();) {
+        t12 = t1.get$current(t1);
+        if (t12.get$isEmpty(t12))
+          continue;
+        t11.addAll$1(0, t12.get$_sourceSpecificity());
+        for (t12 = A.MapExtensions_get_pairs(t12.get$_extensions(), t2, t3), t12 = t12.get$iterator(t12); t12.moveNext$0();) {
+          t13 = t12.get$current(t12);
+          target = t13._0;
+          newSources = t13._1;
+          if (target instanceof A.PlaceholderSelector) {
+            first = target.name.charCodeAt(0);
+            t13 = first === 45 || first === 95;
+          } else
+            t13 = false;
+          if (t13)
+            continue;
+          extensionsForTarget = t8.$index(0, target);
+          t13 = extensionsForTarget == null;
+          if (!t13) {
+            if (extensionsToExtend == null) {
+              extensionsToExtend = A._setArrayType([], t9);
+              t14 = extensionsToExtend;
+            } else
+              t14 = extensionsToExtend;
+            B.JSArray_methods.addAll$1(t14, extensionsForTarget);
+          }
+          selectorsForTarget = t7.$index(0, target);
+          t14 = selectorsForTarget != null;
+          if (t14) {
+            if (selectorsToExtend == null) {
+              selectorsToExtend = A.LinkedHashSet_LinkedHashSet$_empty(t10);
+              t15 = selectorsToExtend;
+            } else
+              t15 = selectorsToExtend;
+            t15.addAll$1(0, selectorsForTarget);
+          }
+          _2_0 = t4.$index(0, target);
+          if (_2_0 != null)
+            for (t15 = A.MapExtensions_get_pairs(newSources, t5, t6), t15 = t15.get$iterator(t15); t15.moveNext$0();) {
+              t16 = t15.get$current(t15);
+              extender = t16._0;
+              extension = t16._1;
+              if (_2_0.containsKey$1(extender)) {
+                t16 = _2_0.$index(0, extender);
+                extension = A.MergedExtension_merge(t16 == null ? t6._as(t16) : t16, extension);
+                _2_0.$indexSet(0, extender, extension);
+              } else
+                _2_0.$indexSet(0, extender, extension);
+              if (!t13 || t14) {
+                if (newExtensions == null) {
+                  newExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t2, t3);
+                  t16 = newExtensions;
+                } else
+                  t16 = newExtensions;
+                J.$indexSet$ax(t16.putIfAbsent$2(target, new A.ExtensionStore_addExtensions_closure()), extender, extension);
+              }
+            }
+          else {
+            t15 = A.LinkedHashMap_LinkedHashMap(_null, _null, _null, t5, t6);
+            t15.addAll$1(0, newSources);
+            t4.$indexSet(0, target, t15);
+            if (!t13 || t14) {
+              if (newExtensions == null) {
+                newExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t2, t3);
+                t13 = newExtensions;
+              } else
+                t13 = newExtensions;
+              t14 = A.LinkedHashMap_LinkedHashMap(_null, _null, _null, t5, t6);
+              t14.addAll$1(0, newSources);
+              t13.$indexSet(0, target, t14);
+            }
+          }
+        }
+      }
+      if (newExtensions != null) {
+        if (extensionsToExtend != null)
+          _this._extendExistingExtensions$2(extensionsToExtend, newExtensions);
+        if (selectorsToExtend != null)
+          _this._extendExistingSelectors$2(selectorsToExtend, newExtensions);
+      }
+    },
+    _extendList$3(list, extensions, mediaQueryContext) {
+      var t1, t2, t3, extended, i, complex, result, t4;
+      for (t1 = list.components, t2 = t1.length, t3 = type$.JSArray_ComplexSelector, extended = null, i = 0; i < t2; ++i) {
+        complex = t1[i];
+        result = this._extendComplex$3(complex, extensions, mediaQueryContext);
+        if (result == null) {
+          if (extended != null)
+            extended.push(complex);
+        } else {
+          if (extended == null)
+            if (i === 0)
+              extended = A._setArrayType([], t3);
+            else {
+              t4 = B.JSArray_methods.sublist$2(t1, 0, i);
+              extended = A._setArrayType(t4.slice(0), A._arrayInstanceType(t4));
+            }
+          B.JSArray_methods.addAll$1(extended, result);
+        }
+      }
+      if (extended == null)
+        return list;
+      t1 = this._originals;
+      return A.SelectorList$(this._trim$2(extended, t1.get$contains(t1)), list.span);
+    },
+    _extendList$2(list, extensions) {
+      return this._extendList$3(list, extensions, null);
+    },
+    _extendComplex$3(complex, extensions, mediaQueryContext) {
+      var isOriginal, t3, t4, t5, t6, t7, t8, t9, t10, extendedNotExpanded, i, component, extended, t11, t12, t13, t14, _box_0 = {},
+        t1 = complex.leadingCombinators,
+        t2 = t1.length;
+      if (t2 > 1)
+        return null;
+      isOriginal = this._originals.contains$1(0, complex);
+      for (t3 = complex.components, t4 = t3.length, t5 = type$.JSArray_List_ComplexSelector, t6 = complex.lineBreak, t7 = !t6, t8 = complex.span, t9 = type$.JSArray_ComplexSelector, t2 = t2 === 0, t10 = type$.JSArray_ComplexSelectorComponent, extendedNotExpanded = null, i = 0; i < t4; ++i) {
+        component = t3[i];
+        extended = this._extendCompound$4$inOriginal(component, extensions, mediaQueryContext, isOriginal);
+        if (extended == null) {
+          if (extendedNotExpanded != null)
+            extendedNotExpanded.push(A._setArrayType([A.ComplexSelector$(B.List_empty1, A._setArrayType([component], t10), t8, t6)], t9));
+        } else if (extendedNotExpanded != null)
+          extendedNotExpanded.push(extended);
+        else if (i !== 0) {
+          t11 = A._arrayInstanceType(t3);
+          t12 = new A.SubListIterable(t3, 0, i, t11._eval$1("SubListIterable<1>"));
+          t12.SubListIterable$3(t3, 0, i, t11._precomputed1);
+          extendedNotExpanded = A._setArrayType([A._setArrayType([A.ComplexSelector$(t1, t12, t8, t6)], t9), extended], t5);
+        } else if (t2)
+          extendedNotExpanded = A._setArrayType([extended], t5);
+        else {
+          t11 = A._setArrayType([], t9);
+          for (t12 = J.get$iterator$ax(extended); t12.moveNext$0();) {
+            t13 = t12.get$current(t12);
+            t14 = t13.leadingCombinators;
+            if (t14.length === 0 || B.C_ListEquality.equals$2(0, t1, t14)) {
+              t14 = t13.components;
+              t11.push(A.ComplexSelector$(t1, t14, t8, !t7 || t13.lineBreak));
+            }
+          }
+          extendedNotExpanded = A._setArrayType([t11], t5);
+        }
+      }
+      if (extendedNotExpanded == null)
+        return null;
+      _box_0.first = true;
+      t1 = type$.ComplexSelector;
+      t1 = J.expand$1$1$ax(A.paths(extendedNotExpanded, t1), new A.ExtensionStore__extendComplex_closure(_box_0, this, complex), t1);
+      return A.List_List$of(t1, true, t1.$ti._eval$1("Iterable.E"));
+    },
+    _extendCompound$4$inOriginal(component, extensions, mediaQueryContext, inOriginal) {
+      var t3, t4, t5, t6, t7, t8, t9, t10, t11, options, i, simple, extended, t12, result, compound, complex, extenderPaths, withCombinators, isOriginal, _this = this, _null = null,
+        t1 = _this._mode,
+        targetsUsed = t1 === B.ExtendMode_normal_normal || extensions.__js_helper$_length < 2 ? _null : A.LinkedHashSet_LinkedHashSet$_empty(type$.SimpleSelector),
+        t2 = component.selector,
+        simples = t2.components;
+      for (t3 = simples.length, t4 = type$.JSArray_List_Extender, t5 = type$.JSArray_Extender, t6 = type$.CssValue_Combinator, t7 = type$.JSArray_ComplexSelectorComponent, t8 = A._arrayInstanceType(simples), t9 = t8._precomputed1, t8 = t8._eval$1("SubListIterable<1>"), t10 = component.span, t11 = type$.SimpleSelector, options = _null, i = 0; i < t3; ++i) {
+        simple = simples[i];
+        extended = _this._extendSimple$4(simple, extensions, mediaQueryContext, targetsUsed);
+        if (extended == null) {
+          if (options != null)
+            options.push(A._setArrayType([_this._extenderForSimple$1(simple)], t5));
+        } else {
+          if (options == null) {
+            options = A._setArrayType([], t4);
+            if (i !== 0) {
+              t12 = new A.SubListIterable(simples, 0, i, t8);
+              t12.SubListIterable$3(simples, 0, i, t9);
+              result = A.List_List$from(t12, false, t11);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t12 = result;
+              compound = new A.CompoundSelector(t12, t10);
+              if (t12.length === 0)
+                A.throwExpression(A.ArgumentError$("components may not be empty.", _null));
+              result = A.List_List$from(B.List_empty1, false, t6);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t12 = A.ComplexSelector$(B.List_empty1, A._setArrayType([new A.ComplexSelectorComponent(compound, result, t10)], t7), t10, false);
+              _this._sourceSpecificityFor$1(compound);
+              options.push(A._setArrayType([new A.Extender(t12, true)], t5));
+            }
+          }
+          B.JSArray_methods.addAll$1(options, extended);
+        }
+      }
+      if (options == null)
+        return _null;
+      if (targetsUsed != null && targetsUsed._collection$_length !== extensions.__js_helper$_length)
+        return _null;
+      if (options.length === 1) {
+        for (t1 = J.get$iterator$ax(options[0]), t2 = component.combinators, t3 = type$.JSArray_ComplexSelector, result = _null; t1.moveNext$0();) {
+          t4 = t1.get$current(t1);
+          t4.assertCompatibleMediaContext$1(mediaQueryContext);
+          complex = t4.selector.withAdditionalCombinators$1(t2);
+          if (complex.accept$1(B.C__IsUselessVisitor))
+            continue;
+          if (result == null)
+            result = A._setArrayType([], t3);
+          result.push(complex);
+        }
+        return result;
+      }
+      extenderPaths = A.paths(options, type$.Extender);
+      t3 = A._setArrayType([], type$.JSArray_ComplexSelector);
+      t1 = t1 === B.ExtendMode_replace_replace;
+      t4 = !t1;
+      if (t4)
+        t3.push(A.ComplexSelector$(B.List_empty1, A._setArrayType([new A.ComplexSelectorComponent(A.CompoundSelector$(J.expand$1$1$ax(J.get$first$ax(extenderPaths), new A.ExtensionStore__extendCompound_closure(), t11), t2.span), A.List_List$unmodifiable(component.combinators, t6), t10)], t7), t10, false));
+      t2 = J.skip$1$ax(extenderPaths, t1 ? 0 : 1);
+      t5 = t2.$ti;
+      t2 = new A.ListIterator(t2, t2.get$length(0), t5._eval$1("ListIterator<ListIterable.E>"));
+      t6 = component.combinators;
+      t5 = t5._eval$1("ListIterable.E");
+      for (; t2.moveNext$0();) {
+        t1 = t2.__internal$_current;
+        extended = _this._unifyExtenders$3(t1 == null ? t5._as(t1) : t1, mediaQueryContext, t10);
+        if (extended == null)
+          continue;
+        for (t1 = J.get$iterator$ax(extended); t1.moveNext$0();) {
+          withCombinators = t1.get$current(t1).withAdditionalCombinators$1(t6);
+          if (!withCombinators.accept$1(B.C__IsUselessVisitor))
+            t3.push(withCombinators);
+        }
+      }
+      isOriginal = new A.ExtensionStore__extendCompound_closure0();
+      return _this._trim$2(t3, inOriginal && t4 ? new A.ExtensionStore__extendCompound_closure1(B.JSArray_methods.get$first(t3)) : isOriginal);
+    },
+    _unifyExtenders$3(extenders, mediaQueryContext, span) {
+      var t1, t2, t3, originals, originalsLineBreak, t4, complexes, _null = null,
+        toUnify = A.QueueList$(_null, type$.ComplexSelector);
+      for (t1 = J.getInterceptor$ax(extenders), t2 = t1.get$iterator(extenders), t3 = type$.JSArray_SimpleSelector, originals = _null, originalsLineBreak = false; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        if (t4.isOriginal) {
+          if (originals == null)
+            originals = A._setArrayType([], t3);
+          t4 = t4.selector;
+          B.JSArray_methods.addAll$1(originals, B.JSArray_methods.get$last(t4.components).selector.components);
+          originalsLineBreak = originalsLineBreak || t4.lineBreak;
+        } else {
+          t4 = t4.selector;
+          if (t4.accept$1(B.C__IsUselessVisitor))
+            return _null;
+          else
+            toUnify._queue_list$_add$1(t4);
+        }
+      }
+      if (originals != null)
+        toUnify.addFirst$1(A.ComplexSelector$(B.List_empty1, A._setArrayType([new A.ComplexSelectorComponent(A.CompoundSelector$(originals, span), A.List_List$unmodifiable(B.List_empty1, type$.CssValue_Combinator), span)], type$.JSArray_ComplexSelectorComponent), span, originalsLineBreak));
+      complexes = A.unifyComplex(toUnify, span);
+      if (complexes == null)
+        return _null;
+      for (t1 = t1.get$iterator(extenders); t1.moveNext$0();)
+        t1.get$current(t1).assertCompatibleMediaContext$1(mediaQueryContext);
+      return complexes;
+    },
+    _extendSimple$4(simple, extensions, mediaQueryContext, targetsUsed) {
+      var t2, _1_0,
+        t1 = new A.ExtensionStore__extendSimple_withoutPseudo(this, extensions, targetsUsed);
+      if (simple instanceof A.PseudoSelector)
+        t2 = simple.selector != null;
+      else
+        t2 = false;
+      if (t2) {
+        _1_0 = this._extendPseudo$3(simple, extensions, mediaQueryContext);
+        if (_1_0 != null)
+          return new A.MappedListIterable(_1_0, new A.ExtensionStore__extendSimple_closure(this, t1), A._arrayInstanceType(_1_0)._eval$1("MappedListIterable<1,List<Extender>>"));
+      }
+      return A.NullableExtension_andThen(t1.call$1(simple), new A.ExtensionStore__extendSimple_closure0());
+    },
+    _extenderForSimple$1(simple) {
+      var t1 = simple.span;
+      t1 = A.ComplexSelector$(B.List_empty1, A._setArrayType([new A.ComplexSelectorComponent(A.CompoundSelector$(A._setArrayType([simple], type$.JSArray_SimpleSelector), t1), A.List_List$unmodifiable(B.List_empty1, type$.CssValue_Combinator), t1)], type$.JSArray_ComplexSelectorComponent), t1, false);
+      this._sourceSpecificity.$index(0, simple);
+      return new A.Extender(t1, true);
+    },
+    _extendPseudo$3(pseudo, extensions, mediaQueryContext) {
+      var extended, complexes, t1, result,
+        selector = pseudo.selector;
+      if (selector == null)
+        throw A.wrapException(A.ArgumentError$("Selector " + pseudo.toString$0(0) + " must have a selector argument.", null));
+      extended = this._extendList$3(selector, extensions, mediaQueryContext);
+      if (extended === selector)
+        return null;
+      complexes = extended.components;
+      t1 = pseudo.normalizedName === "not";
+      if (t1 && !B.JSArray_methods.any$1(selector.components, new A.ExtensionStore__extendPseudo_closure()) && B.JSArray_methods.any$1(complexes, new A.ExtensionStore__extendPseudo_closure0()))
+        complexes = new A.WhereIterable(complexes, new A.ExtensionStore__extendPseudo_closure1(), A._arrayInstanceType(complexes)._eval$1("WhereIterable<1>"));
+      complexes = J.expand$1$1$ax(complexes, new A.ExtensionStore__extendPseudo_closure2(pseudo), type$.ComplexSelector);
+      if (t1 && selector.components.length === 1) {
+        t1 = A.MappedIterable_MappedIterable(complexes, new A.ExtensionStore__extendPseudo_closure3(pseudo, selector), complexes.$ti._eval$1("Iterable.E"), type$.PseudoSelector);
+        result = A.List_List$of(t1, true, A._instanceType(t1)._eval$1("Iterable.E"));
+        return result.length === 0 ? null : result;
+      } else
+        return A._setArrayType([pseudo.withSelector$1(A.SelectorList$(complexes, selector.span))], type$.JSArray_PseudoSelector);
+    },
+    _trim$2(selectors, isOriginal) {
+      var result, i, t1, t2, numOriginals, _box_0, complex1, j, t3, t4, _i, t5, maxSpecificity;
+      if (selectors.length > 100)
+        return selectors;
+      result = A.QueueList$(null, type$.ComplexSelector);
+      $label0$0:
+        for (i = selectors.length - 1, t1 = A._arrayInstanceType(selectors), t2 = t1._precomputed1, t1 = t1._eval$1("SubListIterable<1>"), numOriginals = 0; i >= 0; --i) {
+          _box_0 = {};
+          complex1 = selectors[i];
+          if (isOriginal.call$1(complex1)) {
+            for (j = 0; j < numOriginals; ++j)
+              if (J.$eq$(result.$index(0, j), complex1)) {
+                A.rotateSlice(result, 0, j + 1);
+                continue $label0$0;
+              }
+            ++numOriginals;
+            result.addFirst$1(complex1);
+            continue $label0$0;
+          }
+          _box_0.maxSpecificity = 0;
+          for (t3 = complex1.components, t4 = t3.length, _i = 0, t5 = 0; _i < t4; ++_i, t5 = maxSpecificity) {
+            maxSpecificity = Math.max(t5, this._sourceSpecificityFor$1(t3[_i].selector));
+            _box_0.maxSpecificity = maxSpecificity;
+          }
+          if (result.any$1(result, new A.ExtensionStore__trim_closure(_box_0, complex1)))
+            continue $label0$0;
+          t3 = new A.SubListIterable(selectors, 0, i, t1);
+          t3.SubListIterable$3(selectors, 0, i, t2);
+          if (t3.any$1(0, new A.ExtensionStore__trim_closure0(_box_0, complex1)))
+            continue $label0$0;
+          result.addFirst$1(complex1);
+        }
+      return result;
+    },
+    _sourceSpecificityFor$1(compound) {
+      var t1, t2, t3, specificity, _i, t4;
+      for (t1 = compound.components, t2 = t1.length, t3 = this._sourceSpecificity, specificity = 0, _i = 0; _i < t2; ++_i) {
+        t4 = t3.$index(0, t1[_i]);
+        specificity = Math.max(specificity, A.checkNum(t4 == null ? 0 : t4));
+      }
+      return specificity;
+    },
+    clone$0() {
+      var t2, t3, t4, _this = this,
+        t1 = type$.SimpleSelector,
+        newSelectors = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Set_ModifiableBox_SelectorList),
+        newMediaContexts = A.LinkedHashMap_LinkedHashMap$_empty(type$.ModifiableBox_SelectorList, type$.List_CssMediaQuery),
+        oldToNewSelectors = new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_of_SelectorList_and_Box_SelectorList);
+      _this._selectors.forEach$1(0, new A.ExtensionStore_clone_closure(_this, newSelectors, oldToNewSelectors, newMediaContexts));
+      t2 = type$.Extension;
+      t3 = A.copyMapOfMap(_this._extensions, t1, type$.ComplexSelector, t2);
+      t2 = A.copyMapOfList(_this._extensionsByExtender, t1, t2);
+      t1 = new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_SimpleSelector_int);
+      t1.addAll$1(0, _this._sourceSpecificity);
+      t4 = new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_ComplexSelector);
+      t4.addAll$1(0, _this._originals);
+      return new A._Record_2(new A.ExtensionStore(newSelectors, t3, t2, newMediaContexts, t1, t4, B.ExtendMode_normal_normal), oldToNewSelectors);
+    },
+    get$_extensions() {
+      return this._extensions;
+    },
+    get$_sourceSpecificity() {
+      return this._sourceSpecificity;
+    }
+  };
+  A.ExtensionStore_extensionsWhereTarget_closure.prototype = {
+    call$1(extension) {
+      return !extension.isOptional;
+    },
+    $signature: 341
+  };
+  A.ExtensionStore__registerSelector_closure.prototype = {
+    call$0() {
+      return A.LinkedHashSet_LinkedHashSet$_empty(type$.ModifiableBox_SelectorList);
+    },
+    $signature: 342
+  };
+  A.ExtensionStore_addExtension_closure.prototype = {
+    call$0() {
+      return A.LinkedHashMap_LinkedHashMap$_empty(type$.ComplexSelector, type$.Extension);
+    },
+    $signature: 129
+  };
+  A.ExtensionStore_addExtension_closure0.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_Extension);
+    },
+    $signature: 221
+  };
+  A.ExtensionStore_addExtension_closure1.prototype = {
+    call$0() {
+      return this.complex.get$specificity();
+    },
+    $signature: 10
+  };
+  A.ExtensionStore__extendExistingExtensions_closure.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_Extension);
+    },
+    $signature: 221
+  };
+  A.ExtensionStore__extendExistingExtensions_closure0.prototype = {
+    call$0() {
+      return A.LinkedHashMap_LinkedHashMap$_empty(type$.ComplexSelector, type$.Extension);
+    },
+    $signature: 129
+  };
+  A.ExtensionStore_addExtensions_closure.prototype = {
+    call$0() {
+      return A.LinkedHashMap_LinkedHashMap$_empty(type$.ComplexSelector, type$.Extension);
+    },
+    $signature: 129
+  };
+  A.ExtensionStore__extendComplex_closure.prototype = {
+    call$1(path) {
+      var t1 = this.complex;
+      return J.map$1$1$ax(A.weave(path, t1.span, t1.lineBreak), new A.ExtensionStore__extendComplex__closure(this._box_0, this.$this, t1), type$.ComplexSelector);
+    },
+    $signature: 345
+  };
+  A.ExtensionStore__extendComplex__closure.prototype = {
+    call$1(outputComplex) {
+      var _this = this,
+        t1 = _this._box_0;
+      if (t1.first && _this.$this._originals.contains$1(0, _this.complex))
+        _this.$this._originals.add$1(0, outputComplex);
+      t1.first = false;
+      return outputComplex;
+    },
+    $signature: 57
+  };
+  A.ExtensionStore__extendCompound_closure.prototype = {
+    call$1(extender) {
+      return B.JSArray_methods.get$last(extender.selector.components).selector.components;
+    },
+    $signature: 347
+  };
+  A.ExtensionStore__extendCompound_closure0.prototype = {
+    call$1(_) {
+      return false;
+    },
+    $signature: 16
+  };
+  A.ExtensionStore__extendCompound_closure1.prototype = {
+    call$1(complex) {
+      return complex.$eq(0, this.original);
+    },
+    $signature: 16
+  };
+  A.ExtensionStore__extendSimple_withoutPseudo.prototype = {
+    call$1(simple) {
+      var t1, t2,
+        extensionsForSimple = this.extensions.$index(0, simple);
+      if (extensionsForSimple == null)
+        return null;
+      t1 = this.targetsUsed;
+      if (t1 != null)
+        t1.add$1(0, simple);
+      t1 = A._setArrayType([], type$.JSArray_Extender);
+      t2 = this.$this;
+      if (t2._mode !== B.ExtendMode_replace_replace)
+        t1.push(t2._extenderForSimple$1(simple));
+      for (t2 = extensionsForSimple.get$values(extensionsForSimple), t2 = t2.get$iterator(t2); t2.moveNext$0();)
+        t1.push(t2.get$current(t2).extender);
+      return t1;
+    },
+    $signature: 349
+  };
+  A.ExtensionStore__extendSimple_closure.prototype = {
+    call$1(pseudo) {
+      var t1 = this.withoutPseudo.call$1(pseudo);
+      return t1 == null ? A._setArrayType([this.$this._extenderForSimple$1(pseudo)], type$.JSArray_Extender) : t1;
+    },
+    $signature: 350
+  };
+  A.ExtensionStore__extendSimple_closure0.prototype = {
+    call$1(result) {
+      return A._setArrayType([result], type$.JSArray_List_Extender);
+    },
+    $signature: 351
+  };
+  A.ExtensionStore__extendPseudo_closure.prototype = {
+    call$1(complex) {
+      return complex.components.length > 1;
+    },
+    $signature: 16
+  };
+  A.ExtensionStore__extendPseudo_closure0.prototype = {
+    call$1(complex) {
+      return complex.components.length === 1;
+    },
+    $signature: 16
+  };
+  A.ExtensionStore__extendPseudo_closure1.prototype = {
+    call$1(complex) {
+      return complex.components.length <= 1;
+    },
+    $signature: 16
+  };
+  A.ExtensionStore__extendPseudo_closure2.prototype = {
+    call$1(complex) {
+      var innerPseudo, innerSelector,
+        t1 = complex.get$singleCompound();
+      if (t1 == null)
+        innerPseudo = null;
+      else {
+        t1 = t1.components;
+        innerPseudo = t1.length === 1 ? B.JSArray_methods.get$first(t1) : null;
+      }
+      if (!(innerPseudo instanceof A.PseudoSelector))
+        return A._setArrayType([complex], type$.JSArray_ComplexSelector);
+      innerSelector = innerPseudo.selector;
+      if (innerSelector == null)
+        return A._setArrayType([complex], type$.JSArray_ComplexSelector);
+      t1 = this.pseudo;
+      switch (t1.normalizedName) {
+        case "not":
+          if (!B.Set_mlzm2.contains$1(0, innerPseudo.normalizedName))
+            return A._setArrayType([], type$.JSArray_ComplexSelector);
+          return innerSelector.components;
+        case "is":
+        case "matches":
+        case "where":
+        case "any":
+        case "current":
+        case "nth-child":
+        case "nth-last-child":
+          if (innerPseudo.name !== t1.name)
+            return A._setArrayType([], type$.JSArray_ComplexSelector);
+          if (innerPseudo.argument != t1.argument)
+            return A._setArrayType([], type$.JSArray_ComplexSelector);
+          return innerSelector.components;
+        case "has":
+        case "host":
+        case "host-context":
+        case "slotted":
+          return A._setArrayType([complex], type$.JSArray_ComplexSelector);
+        default:
+          return A._setArrayType([], type$.JSArray_ComplexSelector);
+      }
+    },
+    $signature: 362
+  };
+  A.ExtensionStore__extendPseudo_closure3.prototype = {
+    call$1(complex) {
+      return this.pseudo.withSelector$1(A.SelectorList$(A._setArrayType([complex], type$.JSArray_ComplexSelector), this.selector.span));
+    },
+    $signature: 363
+  };
+  A.ExtensionStore__trim_closure.prototype = {
+    call$1(complex2) {
+      return complex2.get$specificity() >= this._box_0.maxSpecificity && complex2.isSuperselector$1(this.complex1);
+    },
+    $signature: 16
+  };
+  A.ExtensionStore__trim_closure0.prototype = {
+    call$1(complex2) {
+      return complex2.get$specificity() >= this._box_0.maxSpecificity && complex2.isSuperselector$1(this.complex1);
+    },
+    $signature: 16
+  };
+  A.ExtensionStore_clone_closure.prototype = {
+    call$2(simple, selectors) {
+      var t2, t3, t4, t5, t6, t7, newSelector, _0_0, _this = this,
+        t1 = type$.ModifiableBox_SelectorList,
+        newSelectorSet = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      _this.newSelectors.$indexSet(0, simple, newSelectorSet);
+      for (t2 = selectors.get$iterator(selectors), t3 = _this.oldToNewSelectors, t4 = type$.Box_SelectorList, t5 = _this.$this._mediaContexts, t6 = _this.newMediaContexts; t2.moveNext$0();) {
+        t7 = t2.get$current(t2);
+        newSelector = new A.ModifiableBox(t7.value, t1);
+        newSelectorSet.add$1(0, newSelector);
+        t3.$indexSet(0, t7.value, new A.Box(newSelector, t4));
+        _0_0 = t5.$index(0, t7);
+        if (_0_0 != null)
+          t6.$indexSet(0, newSelector, _0_0);
+      }
+    },
+    $signature: 379
+  };
+  A.unifyComplex_closure.prototype = {
+    call$1(complex) {
+      return complex.lineBreak;
+    },
+    $signature: 16
+  };
+  A._weaveParents_closure.prototype = {
+    call$2(group1, group2) {
+      var t1, unified;
+      if (B.C_ListEquality.equals$2(0, group1, group2))
+        return group1;
+      if (A._complexIsParentSuperselector(group1, group2))
+        return group2;
+      if (A._complexIsParentSuperselector(group2, group1))
+        return group1;
+      if (!A._mustUnify(group1, group2))
+        return null;
+      t1 = this.span;
+      unified = A.unifyComplex(A._setArrayType([A.ComplexSelector$(B.List_empty1, group1, t1, false), A.ComplexSelector$(B.List_empty1, group2, t1, false)], type$.JSArray_ComplexSelector), t1);
+      if (unified == null)
+        t1 = null;
+      else {
+        t1 = A.IterableExtension_get_singleOrNull(unified);
+        t1 = t1 == null ? null : t1.components;
+      }
+      return t1;
+    },
+    $signature: 380
+  };
+  A._weaveParents_closure0.prototype = {
+    call$1(sequence) {
+      return A._complexIsParentSuperselector(sequence.get$first(sequence), this.group);
+    },
+    $signature: 209
+  };
+  A._weaveParents_closure1.prototype = {
+    call$1(sequence) {
+      return sequence.get$length(0) === 0;
+    },
+    $signature: 209
+  };
+  A._weaveParents_closure2.prototype = {
+    call$1(choice) {
+      return J.get$isNotEmpty$asx(choice);
+    },
+    $signature: 382
+  };
+  A._mustUnify_closure.prototype = {
+    call$1(component) {
+      return B.JSArray_methods.any$1(component.selector.components, new A._mustUnify__closure(this.uniqueSelectors));
+    },
+    $signature: 50
+  };
+  A._mustUnify__closure.prototype = {
+    call$1(simple) {
+      var t1;
+      if (!(simple instanceof A.IDSelector))
+        t1 = simple instanceof A.PseudoSelector && !simple.isClass;
+      else
+        t1 = true;
+      return t1 && this.uniqueSelectors.contains$1(0, simple);
+    },
+    $signature: 14
+  };
+  A.paths_closure.prototype = {
+    call$2(paths, choice) {
+      var t1 = this.T;
+      t1 = J.expand$1$1$ax(choice, new A.paths__closure(paths, t1), t1._eval$1("List<0>"));
+      return A.List_List$of(t1, true, t1.$ti._eval$1("Iterable.E"));
+    },
+    $signature() {
+      return this.T._eval$1("List<List<0>>(List<List<0>>,List<0>)");
+    }
+  };
+  A.paths__closure.prototype = {
+    call$1(option) {
+      var t1 = this.T;
+      return J.map$1$1$ax(this.paths, new A.paths___closure(option, t1), t1._eval$1("List<0>"));
+    },
+    $signature() {
+      return this.T._eval$1("Iterable<List<0>>(0)");
+    }
+  };
+  A.paths___closure.prototype = {
+    call$1(path) {
+      var t1 = A.List_List$of(path, true, this.T);
+      t1.push(this.option);
+      return t1;
+    },
+    $signature() {
+      return this.T._eval$1("List<0>(List<0>)");
+    }
+  };
+  A.listIsSuperselector_closure.prototype = {
+    call$1(complex1) {
+      return B.JSArray_methods.any$1(this.list1, new A.listIsSuperselector__closure(complex1));
+    },
+    $signature: 16
+  };
+  A.listIsSuperselector__closure.prototype = {
+    call$1(complex2) {
+      return complex2.isSuperselector$1(this.complex1);
+    },
+    $signature: 16
+  };
+  A.complexIsSuperselector_closure.prototype = {
+    call$1($parent) {
+      return $parent.combinators.length > 1;
+    },
+    $signature: 50
+  };
+  A.complexIsSuperselector_closure0.prototype = {
+    call$1(component) {
+      return A._isSupercombinator(this.combinator1, A.IterableExtension_get_firstOrNull(component.combinators));
+    },
+    $signature: 50
+  };
+  A._compatibleWithPreviousCombinator_closure.prototype = {
+    call$1(component) {
+      var t1 = component.combinators,
+        t2 = A.IterableExtension_get_firstOrNull(t1);
+      if (!J.$eq$(t2 == null ? null : t2.value, B.Combinator_y18)) {
+        t1 = A.IterableExtension_get_firstOrNull(t1);
+        t1 = J.$eq$(t1 == null ? null : t1.value, B.Combinator_gRV);
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 50
+  };
+  A._selectorPseudoIsSuperselector_closure.prototype = {
+    call$1(selector2) {
+      return A.listIsSuperselector(this.selector1.components, selector2.components);
+    },
+    $signature: 74
+  };
+  A._selectorPseudoIsSuperselector_closure0.prototype = {
+    call$1(complex1) {
+      var t1, t2;
+      if (complex1.leadingCombinators.length === 0) {
+        t1 = A._setArrayType([], type$.JSArray_ComplexSelectorComponent);
+        t2 = this.parents;
+        if (t2 != null)
+          B.JSArray_methods.addAll$1(t1, t2);
+        t2 = this.compound2;
+        t1.push(new A.ComplexSelectorComponent(t2, A.List_List$unmodifiable(B.List_empty1, type$.CssValue_Combinator), t2.span));
+        t1 = A.complexIsSuperselector(complex1.components, t1);
+      } else
+        t1 = false;
+      return t1;
+    },
+    $signature: 16
+  };
+  A._selectorPseudoIsSuperselector_closure1.prototype = {
+    call$1(selector2) {
+      return A.listIsSuperselector(this.selector1.components, selector2.components);
+    },
+    $signature: 74
+  };
+  A._selectorPseudoIsSuperselector_closure2.prototype = {
+    call$1(selector2) {
+      return A.listIsSuperselector(this.selector1.components, selector2.components);
+    },
+    $signature: 74
+  };
+  A._selectorPseudoIsSuperselector_closure3.prototype = {
+    call$1(complex) {
+      if (complex.accept$1(B._IsBogusVisitor_true))
+        return false;
+      return B.JSArray_methods.any$1(this.compound2.components, new A._selectorPseudoIsSuperselector__closure(complex, this.pseudo1));
+    },
+    $signature: 16
+  };
+  A._selectorPseudoIsSuperselector__closure.prototype = {
+    call$1(simple2) {
+      var t1, _0_4, selector2, _this = this;
+      $label0$1: {
+        if (simple2 instanceof A.TypeSelector) {
+          t1 = B.JSArray_methods.any$1(B.JSArray_methods.get$last(_this.complex.components).selector.components, new A._selectorPseudoIsSuperselector___closure(simple2));
+          break $label0$1;
+        }
+        if (simple2 instanceof A.IDSelector) {
+          t1 = B.JSArray_methods.any$1(B.JSArray_methods.get$last(_this.complex.components).selector.components, new A._selectorPseudoIsSuperselector___closure0(simple2));
+          break $label0$1;
+        }
+        if (simple2 instanceof A.PseudoSelector) {
+          _0_4 = simple2.selector;
+          if (_0_4 != null) {
+            selector2 = _0_4 == null ? type$.SelectorList._as(_0_4) : _0_4;
+            t1 = simple2.name === _this.pseudo1.name;
+          } else {
+            selector2 = null;
+            t1 = false;
+          }
+        } else {
+          selector2 = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = A.listIsSuperselector(selector2.components, A._setArrayType([_this.complex], type$.JSArray_ComplexSelector));
+          break $label0$1;
+        }
+        t1 = false;
+        break $label0$1;
+      }
+      return t1;
+    },
+    $signature: 14
+  };
+  A._selectorPseudoIsSuperselector___closure.prototype = {
+    call$1(simple1) {
+      var t1;
+      if (simple1 instanceof A.TypeSelector) {
+        t1 = this.simple2;
+        t1 = !(t1 instanceof A.TypeSelector && t1.name.$eq(0, simple1.name));
+      } else
+        t1 = false;
+      return t1;
+    },
+    $signature: 14
+  };
+  A._selectorPseudoIsSuperselector___closure0.prototype = {
+    call$1(simple1) {
+      var t1;
+      if (simple1 instanceof A.IDSelector) {
+        t1 = this.simple2;
+        t1 = !(t1 instanceof A.IDSelector && t1.name === simple1.name);
+      } else
+        t1 = false;
+      return t1;
+    },
+    $signature: 14
+  };
+  A._selectorPseudoIsSuperselector_closure4.prototype = {
+    call$1(selector2) {
+      var t1 = B.C_ListEquality.equals$2(0, this.selector1.components, selector2.components);
+      return t1;
+    },
+    $signature: 74
+  };
+  A._selectorPseudoIsSuperselector_closure5.prototype = {
+    call$1(pseudo2) {
+      var t1, selector2;
+      if (!(pseudo2 instanceof A.PseudoSelector))
+        return false;
+      t1 = this.pseudo1;
+      if (pseudo2.name !== t1.name)
+        return false;
+      if (pseudo2.argument != t1.argument)
+        return false;
+      selector2 = pseudo2.selector;
+      if (selector2 == null)
+        return false;
+      return A.listIsSuperselector(this.selector1.components, selector2.components);
+    },
+    $signature: 14
+  };
+  A._selectorPseudoArgs_closure.prototype = {
+    call$1(pseudo) {
+      return pseudo.isClass === this.isClass && pseudo.name === this.name;
+    },
+    $signature: 383
+  };
+  A._selectorPseudoArgs_closure0.prototype = {
+    call$1(pseudo) {
+      return pseudo.selector;
+    },
+    $signature: 388
+  };
+  A.MergedExtension.prototype = {
+    unmerge$0() {
+      return new A._SyncStarIterable(this.unmerge$body$MergedExtension(), type$._SyncStarIterable_Extension);
+    },
+    unmerge$body$MergedExtension() {
+      var $async$self = this;
+      return function() {
+        var $async$goto = 0, $async$handler = 1, $async$currentError, right, left;
+        return function $async$unmerge$0($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                left = $async$self.left;
+                $async$goto = left instanceof A.MergedExtension ? 2 : 4;
+                break;
+              case 2:
+                // then
+                $async$goto = 5;
+                return $async$iterator._yieldStar$1(left.unmerge$0());
+              case 5:
+                // after yield
+                // goto join
+                $async$goto = 3;
+                break;
+              case 4:
+                // else
+                $async$goto = 6;
+                return $async$iterator._async$_current = left, 1;
+              case 6:
+                // after yield
+              case 3:
+                // join
+                right = $async$self.right;
+                $async$goto = right instanceof A.MergedExtension ? 7 : 9;
+                break;
+              case 7:
+                // then
+                $async$goto = 10;
+                return $async$iterator._yieldStar$1(right.unmerge$0());
+              case 10:
+                // after yield
+                // goto join
+                $async$goto = 8;
+                break;
+              case 9:
+                // else
+                $async$goto = 11;
+                return $async$iterator._async$_current = right, 1;
+              case 11:
+                // after yield
+              case 8:
+                // join
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    }
+  };
+  A.ExtendMode.prototype = {
+    _enumToString$0() {
+      return "ExtendMode." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.globalFunctions_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return t1.$index($arguments, 0).get$isTruthy() ? t1.$index($arguments, 1) : t1.$index($arguments, 2);
+    },
+    $signature: 6
+  };
+  A.global_closure0.prototype = {
+    call$1($arguments) {
+      return A._rgb("rgb", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure1.prototype = {
+    call$1($arguments) {
+      return A._rgb("rgb", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure2.prototype = {
+    call$1($arguments) {
+      return A._rgbTwoArg("rgb", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure3.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels("rgb", A._setArrayType(["$red", "$green", "$blue"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString ? parsed : A._rgb("rgb", type$.List_Value._as(parsed));
+    },
+    $signature: 6
+  };
+  A.global_closure4.prototype = {
+    call$1($arguments) {
+      return A._rgb("rgba", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure5.prototype = {
+    call$1($arguments) {
+      return A._rgb("rgba", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure6.prototype = {
+    call$1($arguments) {
+      return A._rgbTwoArg("rgba", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure7.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels("rgba", A._setArrayType(["$red", "$green", "$blue"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString ? parsed : A._rgb("rgba", type$.List_Value._as(parsed));
+    },
+    $signature: 6
+  };
+  A.global_closure8.prototype = {
+    call$1($arguments) {
+      var color, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        weight = t1.$index($arguments, 1).assertNumber$1("weight");
+      if (t1.$index($arguments, 0) instanceof A.SassNumber || t1.$index($arguments, 0).get$isSpecialNumber()) {
+        if (weight._number$_value !== 100 || !weight.hasUnit$1("%"))
+          throw A.wrapException(string$.Only_oa);
+        return A._functionString("invert", t1.take$1($arguments, 1));
+      }
+      color = t1.$index($arguments, 0).assertColor$1("color");
+      t1 = color.get$red(0);
+      t2 = color.get$green(0);
+      return A._mixColors(color.changeRgb$3$blue$green$red(255 - color.get$blue(0), 255 - t2, 255 - t1), color, weight);
+    },
+    $signature: 6
+  };
+  A.global_closure9.prototype = {
+    call$1($arguments) {
+      return A._hsl("hsl", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure10.prototype = {
+    call$1($arguments) {
+      return A._hsl("hsl", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure11.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0).get$isVar() || t1.$index($arguments, 1).get$isVar())
+        return A._functionString("hsl", $arguments);
+      else
+        throw A.wrapException(A.SassScriptException$("Missing argument $lightness.", null));
+    },
+    $signature: 17
+  };
+  A.global_closure12.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels("hsl", A._setArrayType(["$hue", "$saturation", "$lightness"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString ? parsed : A._hsl("hsl", type$.List_Value._as(parsed));
+    },
+    $signature: 6
+  };
+  A.global_closure13.prototype = {
+    call$1($arguments) {
+      return A._hsl("hsla", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure14.prototype = {
+    call$1($arguments) {
+      return A._hsl("hsla", $arguments);
+    },
+    $signature: 6
+  };
+  A.global_closure15.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0).get$isVar() || t1.$index($arguments, 1).get$isVar())
+        return A._functionString("hsla", $arguments);
+      else
+        throw A.wrapException(A.SassScriptException$("Missing argument $lightness.", null));
+    },
+    $signature: 17
+  };
+  A.global_closure16.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels("hsla", A._setArrayType(["$hue", "$saturation", "$lightness"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString ? parsed : A._hsl("hsla", type$.List_Value._as(parsed));
+    },
+    $signature: 6
+  };
+  A.global_closure17.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber || t1.$index($arguments, 0).get$isSpecialNumber())
+        return A._functionString("grayscale", $arguments);
+      return t1.$index($arguments, 0).assertColor$1("color").changeHsl$1$saturation(0);
+    },
+    $signature: 6
+  };
+  A.global_closure18.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        degrees = A._angleValue(t1.$index($arguments, 1), "degrees");
+      return color.changeHsl$1$hue(color.get$hue(0) + degrees);
+    },
+    $signature: 29
+  };
+  A.global_closure19.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$lightness(B.JSNumber_methods.clamp$2(color.get$lightness(0) + amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 29
+  };
+  A.global_closure20.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$lightness(B.JSNumber_methods.clamp$2(color.get$lightness(0) - amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 29
+  };
+  A.global_closure21.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber || t1.$index($arguments, 0).get$isSpecialNumber())
+        return A._functionString("saturate", $arguments);
+      return new A.SassString("saturate(" + A.serializeValue(t1.$index($arguments, 0).assertNumber$1("amount"), false, true) + ")", false);
+    },
+    $signature: 17
+  };
+  A.global_closure22.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$saturation(B.JSNumber_methods.clamp$2(color.get$saturation(0) + amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 29
+  };
+  A.global_closure23.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$saturation(B.JSNumber_methods.clamp$2(color.get$saturation(0) - amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 29
+  };
+  A.global_closure24.prototype = {
+    call$1($arguments) {
+      var argument = J.$index$asx($arguments, 0);
+      if (argument instanceof A.SassString && !argument._hasQuotes && B.JSString_methods.contains$1(argument._string$_text, $.$get$_microsoftFilterStart()))
+        return A._functionString("alpha", $arguments);
+      return A.SassNumber_SassNumber(argument.assertColor$1("color")._alpha, null);
+    },
+    $signature: 6
+  };
+  A.global_closure25.prototype = {
+    call$1($arguments) {
+      var t1,
+        argList = J.$index$asx($arguments, 0).get$asList();
+      if (argList.length !== 0 && B.JSArray_methods.every$1(argList, new A.global__closure()))
+        return A._functionString("alpha", $arguments);
+      t1 = argList.length;
+      if (t1 === 0)
+        throw A.wrapException(A.SassScriptException$("Missing argument $color.", null));
+      else
+        throw A.wrapException(A.SassScriptException$("Only 1 argument allowed, but " + t1 + " were passed.", null));
+    },
+    $signature: 17
+  };
+  A.global__closure.prototype = {
+    call$1(argument) {
+      return argument instanceof A.SassString && !argument._hasQuotes && B.JSString_methods.contains$1(argument._string$_text, $.$get$_microsoftFilterStart());
+    },
+    $signature: 73
+  };
+  A.global_closure26.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber || t1.$index($arguments, 0).get$isSpecialNumber())
+        return A._functionString("opacity", $arguments);
+      return A.SassNumber_SassNumber(t1.$index($arguments, 0).assertColor$1("color")._alpha, null);
+    },
+    $signature: 6
+  };
+  A.module_closure1.prototype = {
+    call$1($arguments) {
+      var result, color, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        weight = t1.$index($arguments, 1).assertNumber$1("weight");
+      if (t1.$index($arguments, 0) instanceof A.SassNumber) {
+        if (weight._number$_value !== 100 || !weight.hasUnit$1("%"))
+          throw A.wrapException(string$.Only_oa);
+        result = A._functionString("invert", t1.take$1($arguments, 1));
+        A.warnForDeprecation("Passing a number (" + A.S(t1.$index($arguments, 0)) + string$.x29x20to_ci + result.toString$0(0), B.Deprecation_iDZ);
+        return result;
+      }
+      color = t1.$index($arguments, 0).assertColor$1("color");
+      t1 = color.get$red(0);
+      t2 = color.get$green(0);
+      return A._mixColors(color.changeRgb$3$blue$green$red(255 - color.get$blue(0), 255 - t2, 255 - t1), color, weight);
+    },
+    $signature: 6
+  };
+  A.module_closure2.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber) {
+        result = A._functionString("grayscale", t1.take$1($arguments, 1));
+        A.warnForDeprecation("Passing a number (" + A.S(t1.$index($arguments, 0)) + string$.x29x20to_cg + result.toString$0(0), B.Deprecation_iDZ);
+        return result;
+      }
+      return t1.$index($arguments, 0).assertColor$1("color").changeHsl$1$saturation(0);
+    },
+    $signature: 6
+  };
+  A.module_closure3.prototype = {
+    call$1($arguments) {
+      return A._hwb($arguments);
+    },
+    $signature: 6
+  };
+  A.module_closure4.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels("hwb", A._setArrayType(["$hue", "$whiteness", "$blackness"], type$.JSArray_String), J.get$first$ax($arguments));
+      if (parsed instanceof A.SassString)
+        throw A.wrapException(A.SassScriptException$('Expected numeric channels, got "' + parsed.toString$0(0) + '".', null));
+      else
+        return A._hwb(type$.List_Value._as(parsed));
+    },
+    $signature: 6
+  };
+  A.module_closure5.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$whiteness(0), "%");
+    },
+    $signature: 11
+  };
+  A.module_closure6.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$blackness(0), "%");
+    },
+    $signature: 11
+  };
+  A.module_closure7.prototype = {
+    call$1($arguments) {
+      var result,
+        argument = J.$index$asx($arguments, 0);
+      if (argument instanceof A.SassString && !argument._hasQuotes && B.JSString_methods.contains$1(argument._string$_text, $.$get$_microsoftFilterStart())) {
+        result = A._functionString("alpha", $arguments);
+        A.warnForDeprecation(string$.Using_c + result.toString$0(0), B.Deprecation_iDZ);
+        return result;
+      }
+      return A.SassNumber_SassNumber(argument.assertColor$1("color")._alpha, null);
+    },
+    $signature: 6
+  };
+  A.module_closure8.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = J.getInterceptor$asx($arguments);
+      if (B.JSArray_methods.every$1(t1.$index($arguments, 0).get$asList(), new A.module__closure1())) {
+        result = A._functionString("alpha", $arguments);
+        A.warnForDeprecation(string$.Using_c + result.toString$0(0), B.Deprecation_iDZ);
+        return result;
+      }
+      throw A.wrapException(A.SassScriptException$("Only 1 argument allowed, but " + t1.get$length($arguments) + " were passed.", null));
+    },
+    $signature: 17
+  };
+  A.module__closure1.prototype = {
+    call$1(argument) {
+      return argument instanceof A.SassString && !argument._hasQuotes && B.JSString_methods.contains$1(argument._string$_text, $.$get$_microsoftFilterStart());
+    },
+    $signature: 73
+  };
+  A.module_closure9.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber) {
+        result = A._functionString("opacity", $arguments);
+        A.warnForDeprecation("Passing a number (" + A.S(t1.$index($arguments, 0)) + string$.x20to_co + result.toString$0(0), B.Deprecation_iDZ);
+        return result;
+      }
+      return A.SassNumber_SassNumber(t1.$index($arguments, 0).assertColor$1("color")._alpha, null);
+    },
+    $signature: 6
+  };
+  A._red_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$red(0), null);
+    },
+    $signature: 11
+  };
+  A._green_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$green(0), null);
+    },
+    $signature: 11
+  };
+  A._blue_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$blue(0), null);
+    },
+    $signature: 11
+  };
+  A._mix_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A._mixColors(t1.$index($arguments, 0).assertColor$1("color1"), t1.$index($arguments, 1).assertColor$1("color2"), t1.$index($arguments, 2).assertNumber$1("weight"));
+    },
+    $signature: 29
+  };
+  A._hue_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$hue(0), "deg");
+    },
+    $signature: 11
+  };
+  A._saturation_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$saturation(0), "%");
+    },
+    $signature: 11
+  };
+  A._lightness_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.get$first$ax($arguments).assertColor$1("color").get$lightness(0), "%");
+    },
+    $signature: 11
+  };
+  A._complement_closure.prototype = {
+    call$1($arguments) {
+      var color = J.$index$asx($arguments, 0).assertColor$1("color");
+      return color.changeHsl$1$hue(color.get$hue(0) + 180);
+    },
+    $signature: 29
+  };
+  A._adjust_closure.prototype = {
+    call$1($arguments) {
+      return A._updateComponents($arguments, true, false, false);
+    },
+    $signature: 29
+  };
+  A._scale_closure.prototype = {
+    call$1($arguments) {
+      return A._updateComponents($arguments, false, false, true);
+    },
+    $signature: 29
+  };
+  A._change_closure.prototype = {
+    call$1($arguments) {
+      return A._updateComponents($arguments, false, true, false);
+    },
+    $signature: 29
+  };
+  A._ieHexStr_closure.prototype = {
+    call$1($arguments) {
+      var color = J.$index$asx($arguments, 0).assertColor$1("color"),
+        t1 = new A._ieHexStr_closure_hexString();
+      return new A.SassString("#" + A.S(t1.call$1(A.fuzzyRound(color._alpha * 255))) + A.S(t1.call$1(color.get$red(0))) + A.S(t1.call$1(color.get$green(0))) + A.S(t1.call$1(color.get$blue(0))), false);
+    },
+    $signature: 17
+  };
+  A._ieHexStr_closure_hexString.prototype = {
+    call$1(component) {
+      return B.JSString_methods.padLeft$2(B.JSInt_methods.toRadixString$1(component, 16), 2, "0").toUpperCase();
+    },
+    $signature: 194
+  };
+  A._updateComponents_getParam.prototype = {
+    call$5$assertPercent$checkPercent$checkUnitless($name, max, assertPercent, checkPercent, checkUnitless) {
+      var t2, _this = this,
+        t1 = _this.keywords.remove$1(0, $name),
+        number = t1 == null ? null : t1.assertNumber$1($name);
+      if (number == null)
+        return null;
+      t1 = _this.scale;
+      t2 = !t1;
+      if (t2 && checkUnitless)
+        if (number.get$hasUnits())
+          A.warnForDeprecation("$" + $name + ": Passing a number with unit " + number.get$unitString() + string$.x20is_de + number.unitSuggestion$1($name) + string$.x0a_Morex3a, B.Deprecation_2jN);
+      if (t2 && checkPercent)
+        A._checkPercent(number, $name);
+      if (!t2 || assertPercent)
+        number.assertUnit$2("%", $name);
+      if (t1)
+        max = 100;
+      if (!t2 || assertPercent)
+        t1 = number.valueInRange$3(_this.change ? 0 : -max, max, $name);
+      else {
+        t1 = _this.change ? 0 : -max;
+        t1 = number.valueInRangeWithUnit$4(t1, max, $name, checkPercent ? "%" : "");
+      }
+      return t1;
+    },
+    call$2($name, max) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, false, false, false);
+    },
+    call$3$checkUnitless($name, max, checkUnitless) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, false, false, checkUnitless);
+    },
+    call$3$checkPercent($name, max, checkPercent) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, false, checkPercent, false);
+    },
+    call$3$assertPercent($name, max, assertPercent) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, assertPercent, false, false);
+    },
+    $signature: 193
+  };
+  A._updateComponents_closure.prototype = {
+    call$1(hue) {
+      return A._angleValue(hue, "hue");
+    },
+    $signature: 103
+  };
+  A._updateComponents_closure0.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._updateComponents_updateValue.prototype = {
+    call$3(current, param, max) {
+      var t1;
+      if (param == null)
+        return current;
+      if (this.change)
+        return param;
+      if (this.adjust)
+        return B.JSNumber_methods.clamp$2(current + param, 0, max);
+      t1 = param > 0 ? max - current : current;
+      return current + t1 * (param / 100);
+    },
+    $signature: 189
+  };
+  A._updateComponents_updateRgb.prototype = {
+    call$2(current, param) {
+      return A.fuzzyRound(this.updateValue.call$3(current, param, 255));
+    },
+    $signature: 254
+  };
+  A._functionString_closure.prototype = {
+    call$1(argument) {
+      return A.serializeValue(argument, false, true);
+    },
+    $signature: 446
+  };
+  A._removedColorFunction_closure.prototype = {
+    call$1($arguments) {
+      var t1 = this.name,
+        t2 = J.getInterceptor$asx($arguments),
+        t3 = A.S(t2.$index($arguments, 0)),
+        t4 = this.negative ? "-" : "";
+      throw A.wrapException(A.SassScriptException$("The function " + t1 + string$.x28__isn + t3 + ", $" + this.argument + ": " + t4 + A.S(t2.$index($arguments, 1)) + string$.x29x0a_Mor + t1, null));
+    },
+    $signature: 458
+  };
+  A._rgb_closure.prototype = {
+    call$1(alpha) {
+      return A._percentageOrUnitless(alpha.assertNumber$1("alpha"), 1, "alpha");
+    },
+    $signature: 103
+  };
+  A._hsl_closure.prototype = {
+    call$1(alpha) {
+      return A._percentageOrUnitless(alpha.assertNumber$1("alpha"), 1, "alpha");
+    },
+    $signature: 103
+  };
+  A._hwb_closure.prototype = {
+    call$1(alpha) {
+      return A._percentageOrUnitless(alpha.assertNumber$1("alpha"), 1, "alpha");
+    },
+    $signature: 103
+  };
+  A._parseChannels_closure.prototype = {
+    call$1(value) {
+      return value.get$isVar();
+    },
+    $signature: 73
+  };
+  A._length_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.$index$asx($arguments, 0).get$asList().length, null);
+    },
+    $signature: 11
+  };
+  A._nth_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        list = t1.$index($arguments, 0),
+        index = t1.$index($arguments, 1);
+      return list.get$asList()[list.sassIndexToListIndex$2(index, "n")];
+    },
+    $signature: 6
+  };
+  A._setNth_closure.prototype = {
+    call$1($arguments) {
+      var newList,
+        t1 = J.getInterceptor$asx($arguments),
+        list = t1.$index($arguments, 0),
+        index = t1.$index($arguments, 1),
+        value = t1.$index($arguments, 2);
+      t1 = list.get$asList();
+      newList = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      newList[list.sassIndexToListIndex$2(index, "n")] = value;
+      return list.withListContents$1(newList);
+    },
+    $signature: 23
+  };
+  A._join_closure.prototype = {
+    call$1($arguments) {
+      var _0_1, _0_4, _0_3, t2, _0_40, separator, bracketed, _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        list1 = t1.$index($arguments, 0),
+        list2 = t1.$index($arguments, 1),
+        separatorParam = t1.$index($arguments, 2).assertString$1("separator"),
+        bracketedParam = t1.$index($arguments, 3),
+        _1_0 = separatorParam._string$_text;
+      $label1$1: {
+        if ("auto" === _1_0) {
+          _0_1 = list1.get$separator(list1);
+          _0_4 = list2.get$separator(list2);
+          $label0$0: {
+            _0_3 = B.ListSeparator_undecided_null_undecided === _0_1;
+            t1 = _0_3;
+            if (t1) {
+              t2 = B.ListSeparator_undecided_null_undecided === _0_4;
+              _0_40 = _0_4;
+            } else {
+              _0_40 = _null;
+              t2 = false;
+            }
+            if (t2) {
+              t1 = B.ListSeparator_nbm;
+              break $label0$0;
+            }
+            if (_0_3)
+              separator = t1 ? _0_40 : _0_4;
+            else
+              separator = _null;
+            if (!_0_3)
+              separator = _0_1;
+            t1 = separator;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        if ("space" === _1_0) {
+          t1 = B.ListSeparator_nbm;
+          break $label1$1;
+        }
+        if ("comma" === _1_0) {
+          t1 = B.ListSeparator_ECn;
+          break $label1$1;
+        }
+        if ("slash" === _1_0) {
+          t1 = B.ListSeparator_cQA;
+          break $label1$1;
+        }
+        t1 = A.throwExpression(A.SassScriptException$(string$.x24separ, _null));
+      }
+      bracketed = bracketedParam instanceof A.SassString && bracketedParam._string$_text === "auto" ? list1.get$hasBrackets() : bracketedParam.get$isTruthy();
+      t2 = A.List_List$of(list1.get$asList(), true, type$.Value);
+      B.JSArray_methods.addAll$1(t2, list2.get$asList());
+      return A.SassList$(t2, t1, bracketed);
+    },
+    $signature: 23
+  };
+  A._append_closure0.prototype = {
+    call$1($arguments) {
+      var t2,
+        t1 = J.getInterceptor$asx($arguments),
+        list = t1.$index($arguments, 0),
+        value = t1.$index($arguments, 1),
+        _0_0 = t1.$index($arguments, 2).assertString$1("separator")._string$_text;
+      $label0$0: {
+        if ("auto" === _0_0) {
+          t1 = list.get$separator(list) === B.ListSeparator_undecided_null_undecided ? B.ListSeparator_nbm : list.get$separator(list);
+          break $label0$0;
+        }
+        if ("space" === _0_0) {
+          t1 = B.ListSeparator_nbm;
+          break $label0$0;
+        }
+        if ("comma" === _0_0) {
+          t1 = B.ListSeparator_ECn;
+          break $label0$0;
+        }
+        if ("slash" === _0_0) {
+          t1 = B.ListSeparator_cQA;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.SassScriptException$(string$.x24separ, null));
+      }
+      t2 = A.List_List$of(list.get$asList(), true, type$.Value);
+      t2.push(value);
+      return list.withListContents$2$separator(t2, t1);
+    },
+    $signature: 23
+  };
+  A._zip_closure.prototype = {
+    call$1($arguments) {
+      var results, result, _box_0 = {},
+        t1 = J.$index$asx($arguments, 0).get$asList(),
+        t2 = A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,List<Value>>"),
+        lists = A.List_List$of(new A.MappedListIterable(t1, new A._zip__closure(), t2), true, t2._eval$1("ListIterable.E"));
+      if (lists.length === 0)
+        return B.SassList_bdS;
+      _box_0.i = 0;
+      results = A._setArrayType([], type$.JSArray_SassList);
+      for (t1 = A._arrayInstanceType(lists)._eval$1("MappedListIterable<1,Value>"), t2 = type$.Value; B.JSArray_methods.every$1(lists, new A._zip__closure0(_box_0));) {
+        result = A.List_List$from(new A.MappedListIterable(lists, new A._zip__closure1(_box_0), t1), false, t2);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        results.push(new A.SassList(result, B.ListSeparator_nbm, false));
+        ++_box_0.i;
+      }
+      return A.SassList$(results, B.ListSeparator_ECn, false);
+    },
+    $signature: 23
+  };
+  A._zip__closure.prototype = {
+    call$1(list) {
+      return list.get$asList();
+    },
+    $signature: 527
+  };
+  A._zip__closure0.prototype = {
+    call$1(list) {
+      return this._box_0.i !== J.get$length$asx(list);
+    },
+    $signature: 553
+  };
+  A._zip__closure1.prototype = {
+    call$1(list) {
+      return J.$index$asx(list, this._box_0.i);
+    },
+    $signature: 6
+  };
+  A._index_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        index = B.JSArray_methods.indexOf$1(t1.$index($arguments, 0).get$asList(), t1.$index($arguments, 1));
+      return index === -1 ? B.C__SassNull : A.SassNumber_SassNumber(index + 1, null);
+    },
+    $signature: 6
+  };
+  A._separator_closure.prototype = {
+    call$1($arguments) {
+      var t1,
+        _0_0 = J.get$separator$x(J.$index$asx($arguments, 0));
+      $label0$0: {
+        if (B.ListSeparator_ECn === _0_0) {
+          t1 = new A.SassString("comma", false);
+          break $label0$0;
+        }
+        if (B.ListSeparator_cQA === _0_0) {
+          t1 = new A.SassString("slash", false);
+          break $label0$0;
+        }
+        t1 = new A.SassString("space", false);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 17
+  };
+  A._isBracketed_closure.prototype = {
+    call$1($arguments) {
+      return J.$index$asx($arguments, 0).get$hasBrackets() ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._slash_closure.prototype = {
+    call$1($arguments) {
+      var list = J.$index$asx($arguments, 0).get$asList();
+      if (list.length < 2)
+        throw A.wrapException(A.SassScriptException$("At least two elements are required.", null));
+      return A.SassList$(list, B.ListSeparator_cQA, false);
+    },
+    $signature: 23
+  };
+  A._get_closure.prototype = {
+    call$1($arguments) {
+      var value,
+        t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      for (t1 = A.IterableExtension_get_exceptLast(t2), t1 = t1.get$iterator(t1); t1.moveNext$0(); map = value) {
+        value = map._map$_contents.$index(0, t1.get$current(t1));
+        if (!(value instanceof A.SassMap))
+          return B.C__SassNull;
+      }
+      t1 = map._map$_contents.$index(0, B.JSArray_methods.get$last(t2));
+      return t1 == null ? B.C__SassNull : t1;
+    },
+    $signature: 6
+  };
+  A._set_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A._modify(t1.$index($arguments, 0).assertMap$1("map"), A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value), new A._set__closure0($arguments), true);
+    },
+    $signature: 6
+  };
+  A._set__closure0.prototype = {
+    call$1(_) {
+      return J.$index$asx(this.$arguments, 2);
+    },
+    $signature: 42
+  };
+  A._set_closure0.prototype = {
+    call$1($arguments) {
+      var keys, t3, t1 = {},
+        t2 = J.getInterceptor$asx($arguments),
+        map = t2.$index($arguments, 0).assertMap$1("map"),
+        _0_0 = t2.$index($arguments, 1).get$asList(),
+        _0_1 = _0_0.length;
+      if (_0_1 <= 0)
+        throw A.wrapException(A.SassScriptException$("Expected $args to contain a key.", null));
+      if (_0_1 === 1)
+        throw A.wrapException(A.SassScriptException$("Expected $args to contain a value.", null));
+      keys = t1.value = null;
+      t2 = _0_1 >= 1;
+      if (t2) {
+        t3 = _0_1 - 1;
+        keys = B.JSArray_methods.sublist$2(_0_0, 0, t3);
+        t1.value = _0_0[t3];
+      }
+      if (t2)
+        return A._modify(map, keys, new A._set__closure(t1), true);
+      throw A.wrapException("[BUG] Unreachable code");
+    },
+    $signature: 6
+  };
+  A._set__closure.prototype = {
+    call$1(_) {
+      return this._box_0.value;
+    },
+    $signature: 42
+  };
+  A._merge_closure.prototype = {
+    call$1($arguments) {
+      var t2,
+        t1 = J.getInterceptor$asx($arguments),
+        map1 = t1.$index($arguments, 0).assertMap$1("map1"),
+        map2 = t1.$index($arguments, 1).assertMap$1("map2");
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$of(map1._map$_contents, t1, t1);
+      t2.addAll$1(0, map2._map$_contents);
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._merge_closure0.prototype = {
+    call$1($arguments) {
+      var t2, keys, last, _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        map1 = t1.$index($arguments, 0).assertMap$1("map1"),
+        _0_0 = t1.$index($arguments, 1).get$asList(),
+        _0_1 = _0_0.length;
+      if (_0_1 <= 0)
+        throw A.wrapException(A.SassScriptException$("Expected $args to contain a key.", _null));
+      if (_0_1 === 1)
+        throw A.wrapException(A.SassScriptException$("Expected $args to contain a map.", _null));
+      t1 = _0_1 >= 1;
+      if (t1) {
+        t2 = _0_1 - 1;
+        keys = B.JSArray_methods.sublist$2(_0_0, 0, t2);
+        last = _0_0[t2];
+      } else {
+        last = _null;
+        keys = last;
+      }
+      if (t1)
+        return A._modify(map1, keys, new A._merge__closure(last.assertMap$1("map2")), true);
+      throw A.wrapException("[BUG] Unreachable code");
+    },
+    $signature: 6
+  };
+  A._merge__closure.prototype = {
+    call$1(oldValue) {
+      var t1, t2,
+        nestedMap = oldValue.tryMap$0();
+      if (nestedMap == null)
+        return this.map2;
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$of(nestedMap._map$_contents, t1, t1);
+      t2.addAll$1(0, this.map2._map$_contents);
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 627
+  };
+  A._deepMerge_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A._deepMergeImpl(t1.$index($arguments, 0).assertMap$1("map1"), t1.$index($arguments, 1).assertMap$1("map2"));
+    },
+    $signature: 36
+  };
+  A._deepRemove_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      return A._modify(map, A.IterableExtension_get_exceptLast(t2), new A._deepRemove__closure(t2), false);
+    },
+    $signature: 6
+  };
+  A._deepRemove__closure.prototype = {
+    call$1(value) {
+      var t1, nestedMap, t2,
+        _0_0 = value.tryMap$0();
+      if (_0_0 != null) {
+        t1 = _0_0._map$_contents.containsKey$1(B.JSArray_methods.get$last(this.keys));
+        nestedMap = _0_0;
+      } else {
+        nestedMap = null;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = type$.Value;
+        t2 = A.LinkedHashMap_LinkedHashMap$of(nestedMap._map$_contents, t1, t1);
+        t2.remove$1(0, B.JSArray_methods.get$last(this.keys));
+        return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+      }
+      return value;
+    },
+    $signature: 42
+  };
+  A._remove_closure.prototype = {
+    call$1($arguments) {
+      return J.$index$asx($arguments, 0).assertMap$1("map");
+    },
+    $signature: 36
+  };
+  A._remove_closure0.prototype = {
+    call$1($arguments) {
+      var mutableMap, t3, _i,
+        t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      t1 = type$.Value;
+      mutableMap = A.LinkedHashMap_LinkedHashMap$of(map._map$_contents, t1, t1);
+      for (t3 = t2.length, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i)
+        mutableMap.remove$1(0, t2[_i]);
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+    },
+    $signature: 36
+  };
+  A._keys_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.$index$asx($arguments, 0).assertMap$1("map")._map$_contents;
+      return A.SassList$(t1.get$keys(t1), B.ListSeparator_ECn, false);
+    },
+    $signature: 23
+  };
+  A._values_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.$index$asx($arguments, 0).assertMap$1("map")._map$_contents;
+      return A.SassList$(t1.get$values(t1), B.ListSeparator_ECn, false);
+    },
+    $signature: 23
+  };
+  A._hasKey_closure.prototype = {
+    call$1($arguments) {
+      var value,
+        t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      for (t1 = A.IterableExtension_get_exceptLast(t2), t1 = t1.get$iterator(t1); t1.moveNext$0(); map = value) {
+        value = map._map$_contents.$index(0, t1.get$current(t1));
+        if (!(value instanceof A.SassMap))
+          return B.SassBoolean_false;
+      }
+      return map._map$_contents.containsKey$1(B.JSArray_methods.get$last(t2)) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._modify_modifyNestedMap.prototype = {
+    call$1(map) {
+      var nestedMap, _this = this,
+        t1 = type$.Value,
+        mutableMap = A.LinkedHashMap_LinkedHashMap$of(map._map$_contents, t1, t1),
+        t2 = _this.keyIterator,
+        key = t2.get$current(t2);
+      if (!t2.moveNext$0()) {
+        t2 = mutableMap.$index(0, key);
+        if (t2 == null)
+          t2 = B.C__SassNull;
+        mutableMap.$indexSet(0, key, _this.modify.call$1(t2));
+        return new A.SassMap(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+      }
+      t2 = mutableMap.$index(0, key);
+      nestedMap = t2 == null ? null : t2.tryMap$0();
+      t2 = nestedMap == null;
+      if (t2 && !_this.addNesting)
+        return new A.SassMap(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+      mutableMap.$indexSet(0, key, _this.call$1(t2 ? B.SassMap_Map_empty : nestedMap));
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+    },
+    $signature: 629
+  };
+  A.global_closure.prototype = {
+    call$1($arguments) {
+      var t1,
+        number = J.$index$asx($arguments, 0).assertNumber$1("number");
+      if (number.hasUnit$1("%"))
+        A.warnForDeprecation(string$.Passinp + number.toString$0(0) + ")\nTo emit a CSS abs() now: abs(#{" + number.toString$0(0) + string$.x7d__Mor, B.Deprecation_GFc);
+      t1 = number.get$numeratorUnits(number);
+      return A.SassNumber_SassNumber$withUnits(Math.abs(number._number$_value), number.get$denominatorUnits(number), t1);
+    },
+    $signature: 11
+  };
+  A.module_closure0.prototype = {
+    call$1(value) {
+      return Math.abs(value);
+    },
+    $signature: 38
+  };
+  A._ceil_closure.prototype = {
+    call$1(value) {
+      return B.JSNumber_methods.ceil$0(value);
+    },
+    $signature: 38
+  };
+  A._clamp_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        min = t1.$index($arguments, 0).assertNumber$1("min"),
+        number = t1.$index($arguments, 1).assertNumber$1("number"),
+        max = t1.$index($arguments, 2).assertNumber$1("max");
+      number.convertValueToMatch$3(min, "number", "min");
+      max.convertValueToMatch$3(min, "max", "min");
+      if (min.greaterThanOrEquals$1(max).value)
+        return min;
+      if (min.greaterThanOrEquals$1(number).value)
+        return min;
+      if (number.greaterThanOrEquals$1(max).value)
+        return max;
+      return number;
+    },
+    $signature: 11
+  };
+  A._floor_closure.prototype = {
+    call$1(value) {
+      return B.JSNumber_methods.floor$0(value);
+    },
+    $signature: 38
+  };
+  A._max_closure.prototype = {
+    call$1($arguments) {
+      var t1, t2, max, _i, number;
+      for (t1 = J.$index$asx($arguments, 0).get$asList(), t2 = t1.length, max = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        number = t1[_i].assertNumber$0();
+        if (max == null || max.lessThan$1(number).value)
+          max = number;
+      }
+      if (max != null)
+        return max;
+      throw A.wrapException(A.SassScriptException$("At least one argument must be passed.", null));
+    },
+    $signature: 11
+  };
+  A._min_closure.prototype = {
+    call$1($arguments) {
+      var t1, t2, min, _i, number;
+      for (t1 = J.$index$asx($arguments, 0).get$asList(), t2 = t1.length, min = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        number = t1[_i].assertNumber$0();
+        if (min == null || min.greaterThan$1(number).value)
+          min = number;
+      }
+      if (min != null)
+        return min;
+      throw A.wrapException(A.SassScriptException$("At least one argument must be passed.", null));
+    },
+    $signature: 11
+  };
+  A._round_closure.prototype = {
+    call$1(number) {
+      return B.JSNumber_methods.round$0(number);
+    },
+    $signature: 38
+  };
+  A._hypot_closure.prototype = {
+    call$1($arguments) {
+      var subtotal, i, i0, t3, t4,
+        t1 = J.$index$asx($arguments, 0).get$asList(),
+        t2 = A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,SassNumber>"),
+        numbers = A.List_List$of(new A.MappedListIterable(t1, new A._hypot__closure(), t2), true, t2._eval$1("ListIterable.E"));
+      t1 = numbers.length;
+      if (t1 === 0)
+        throw A.wrapException(A.SassScriptException$("At least one argument must be passed.", null));
+      for (subtotal = 0, i = 0; i < t1; i = i0) {
+        i0 = i + 1;
+        subtotal += Math.pow(numbers[i].convertValueToMatch$3(numbers[0], "numbers[" + i0 + "]", "numbers[1]"), 2);
+      }
+      t1 = Math.sqrt(subtotal);
+      t2 = numbers[0];
+      t3 = J.getInterceptor$x(t2);
+      t4 = t3.get$numeratorUnits(t2);
+      return A.SassNumber_SassNumber$withUnits(t1, t3.get$denominatorUnits(t2), t4);
+    },
+    $signature: 11
+  };
+  A._hypot__closure.prototype = {
+    call$1(argument) {
+      return argument.assertNumber$0();
+    },
+    $signature: 609
+  };
+  A._log_closure.prototype = {
+    call$1($arguments) {
+      var base,
+        _s18_ = " to have no units.",
+        _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        number = t1.$index($arguments, 0).assertNumber$1("number");
+      if (number.get$hasUnits())
+        throw A.wrapException(A.SassScriptException$("$number: Expected " + number.toString$0(0) + _s18_, _null));
+      else if (J.$eq$(t1.$index($arguments, 1), B.C__SassNull))
+        return A.SassNumber_SassNumber(Math.log(number._number$_value), _null);
+      base = t1.$index($arguments, 1).assertNumber$1("base");
+      if (base.get$hasUnits())
+        throw A.wrapException(A.SassScriptException$("$base: Expected " + base.toString$0(0) + _s18_, _null));
+      else
+        return A.SassNumber_SassNumber(Math.log(number._number$_value) / Math.log(base._number$_value), _null);
+    },
+    $signature: 11
+  };
+  A._pow_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A.pow0(t1.$index($arguments, 0).assertNumber$1("base"), t1.$index($arguments, 1).assertNumber$1("exponent"));
+    },
+    $signature: 11
+  };
+  A._atan2_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        y = t1.$index($arguments, 0).assertNumber$1("y");
+      return A.SassNumber_SassNumber$withUnits(Math.atan2(y._number$_value, t1.$index($arguments, 1).assertNumber$1("x").convertValueToMatch$3(y, "x", "y")) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    $signature: 11
+  };
+  A._compatible_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return t1.$index($arguments, 0).assertNumber$1("number1").isComparableTo$1(t1.$index($arguments, 1).assertNumber$1("number2")) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._isUnitless_closure.prototype = {
+    call$1($arguments) {
+      return !J.$index$asx($arguments, 0).assertNumber$1("number").get$hasUnits() ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._unit_closure.prototype = {
+    call$1($arguments) {
+      return new A.SassString(J.$index$asx($arguments, 0).assertNumber$1("number").get$unitString(), true);
+    },
+    $signature: 17
+  };
+  A._percentage_closure.prototype = {
+    call$1($arguments) {
+      var number = J.$index$asx($arguments, 0).assertNumber$1("number");
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber(number._number$_value * 100, "%");
+    },
+    $signature: 11
+  };
+  A._randomFunction_closure.prototype = {
+    call$1($arguments) {
+      var limit, limitScalar,
+        t1 = J.getInterceptor$asx($arguments);
+      if (J.$eq$(t1.$index($arguments, 0), B.C__SassNull))
+        return A.SassNumber_SassNumber($.$get$_random0().nextDouble$0(), null);
+      limit = t1.$index($arguments, 0).assertNumber$1("limit");
+      if (limit.get$hasUnits())
+        A.warnForDeprecation(string$.math_r + limit.toString$0(0) + string$.x29x20in_a + limit.get$unitString() + ")) * 1" + limit.get$unitString() + string$.x0a_To_p + limit.get$unitString() + string$.x29x29__Mo, B.Deprecation_2jN);
+      limitScalar = limit.assertInt$1("limit");
+      if (limitScalar < 1)
+        throw A.wrapException(A.SassScriptException$("$limit: Must be greater than 0, was " + limit.toString$0(0) + ".", null));
+      return A.SassNumber_SassNumber($.$get$_random0().nextInt$1(limitScalar) + 1, null);
+    },
+    $signature: 11
+  };
+  A._div_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        number1 = t1.$index($arguments, 0),
+        number2 = t1.$index($arguments, 1);
+      if (!(number1 instanceof A.SassNumber) || !(number2 instanceof A.SassNumber))
+        A.warn(string$.math_d);
+      return number1.dividedBy$1(number2);
+    },
+    $signature: 6
+  };
+  A._singleArgumentMathFunc_closure.prototype = {
+    call$1($arguments) {
+      return this.mathFunc.call$1(J.$index$asx($arguments, 0).assertNumber$1("number"));
+    },
+    $signature: 11
+  };
+  A._numberFunction_closure.prototype = {
+    call$1($arguments) {
+      var number = J.$index$asx($arguments, 0).assertNumber$1("number"),
+        t1 = this.transform.call$1(number._number$_value),
+        t2 = number.get$numeratorUnits(number);
+      return A.SassNumber_SassNumber$withUnits(t1, number.get$denominatorUnits(number), t2);
+    },
+    $signature: 11
+  };
+  A.global_closure27.prototype = {
+    call$1($arguments) {
+      return $._features.contains$1(0, J.$index$asx($arguments, 0).assertString$1("feature")._string$_text) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A.global_closure28.prototype = {
+    call$1($arguments) {
+      return new A.SassString(A.serializeValue(J.get$first$ax($arguments), true, true), false);
+    },
+    $signature: 17
+  };
+  A.global_closure29.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        _0_0 = t1.$index($arguments, 0);
+      $label0$0: {
+        if (_0_0 instanceof A.SassArgumentList) {
+          t1 = "arglist";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassBoolean) {
+          t1 = "bool";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassColor) {
+          t1 = "color";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassList) {
+          t1 = "list";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassMap) {
+          t1 = "map";
+          break $label0$0;
+        }
+        if (B.C__SassNull === _0_0) {
+          t1 = "null";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassNumber) {
+          t1 = "number";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassFunction) {
+          t1 = "function";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassMixin) {
+          t1 = "mixin";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassCalculation) {
+          t1 = "calculation";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassString) {
+          t1 = "string";
+          break $label0$0;
+        }
+        t1 = A.throwExpression("[BUG] Unknown value type " + A.S(t1.$index($arguments, 0)));
+      }
+      return new A.SassString(t1, false);
+    },
+    $signature: 17
+  };
+  A.global_closure30.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        _1_0 = t1.$index($arguments, 0);
+      if (_1_0 instanceof A.SassArgumentList) {
+        _1_0._wereKeywordsAccessed = true;
+        t1 = type$.Value;
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+        for (t3 = A.MapExtensions_get_pairs(_1_0._keywords, type$.String, t1), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+          t4 = t3.get$current(t3);
+          t2.$indexSet(0, new A.SassString(t4._0, false), t4._1);
+        }
+        return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+      } else
+        throw A.wrapException("$args: " + A.S(t1.$index($arguments, 0)) + " is not an argument list.");
+    },
+    $signature: 36
+  };
+  A.local_closure.prototype = {
+    call$1($arguments) {
+      return new A.SassString(J.$index$asx($arguments, 0).assertCalculation$1("calc").name, true);
+    },
+    $signature: 17
+  };
+  A.local_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.$index$asx($arguments, 0).assertCalculation$1("calc").$arguments;
+      return A.SassList$(new A.MappedListIterable(t1, new A.local__closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value>")), B.ListSeparator_ECn, false);
+    },
+    $signature: 23
+  };
+  A.local__closure.prototype = {
+    call$1(argument) {
+      return argument instanceof A.Value ? argument : new A.SassString(J.toString$0$(argument), false);
+    },
+    $signature: 606
+  };
+  A.local_closure1.prototype = {
+    call$1($arguments) {
+      var _0_2_isSet, _0_2, acceptsContent, t1, _0_5_isSet, _0_5, hasContent,
+        mixin = J.$index$asx($arguments, 0).assertMixin$1("mixin"),
+        _0_0 = mixin.callable;
+      $label0$0: {
+        _0_2_isSet = type$.AsyncBuiltInCallable._is(_0_0);
+        if (_0_2_isSet) {
+          _0_2 = _0_0.get$acceptsContent();
+          acceptsContent = _0_2;
+        } else
+          acceptsContent = null;
+        if (!_0_2_isSet) {
+          _0_2_isSet = _0_0 instanceof A.BuiltInCallable;
+          if (_0_2_isSet) {
+            _0_2 = _0_0.acceptsContent;
+            acceptsContent = _0_2;
+          }
+          t1 = _0_2_isSet;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = acceptsContent;
+          break $label0$0;
+        }
+        _0_5_isSet = _0_0 instanceof A.UserDefinedCallable;
+        if (_0_5_isSet) {
+          _0_5 = _0_0.declaration;
+          t1 = _0_5 instanceof A.MixinRule;
+        } else {
+          _0_5 = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _0_5_isSet ? _0_5 : _0_0.declaration;
+          hasContent = type$.MixinRule._as(t1).get$hasContent();
+          t1 = hasContent;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.UnsupportedError$("Unknown callable type " + mixin.toString$0(0) + "."));
+      }
+      return t1 ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._nest_closure.prototype = {
+    call$1($arguments) {
+      var t1 = {},
+        selectors = J.$index$asx($arguments, 0).get$asList();
+      if (selectors.length === 0)
+        throw A.wrapException(A.SassScriptException$(string$.x24selec, null));
+      t1.first = true;
+      return new A.MappedListIterable(selectors, new A._nest__closure(t1), A._arrayInstanceType(selectors)._eval$1("MappedListIterable<1,SelectorList>")).reduce$1(0, new A._nest__closure0()).get$asSassList();
+    },
+    $signature: 23
+  };
+  A._nest__closure.prototype = {
+    call$1(selector) {
+      var t1 = this._box_0,
+        result = A.SassApiValue_assertSelector(selector, !t1.first, null);
+      t1.first = false;
+      return result;
+    },
+    $signature: 139
+  };
+  A._nest__closure0.prototype = {
+    call$2($parent, child) {
+      return child.nestWithin$1($parent);
+    },
+    $signature: 140
+  };
+  A._append_closure.prototype = {
+    call$1($arguments) {
+      var t1,
+        selectors = J.$index$asx($arguments, 0).get$asList();
+      if (selectors.length === 0)
+        throw A.wrapException(A.SassScriptException$(string$.x24selec, null));
+      t1 = A.EvaluationContext_currentOrNull();
+      return new A.MappedListIterable(selectors, new A._append__closure(), A._arrayInstanceType(selectors)._eval$1("MappedListIterable<1,SelectorList>")).reduce$1(0, new A._append__closure0((t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan())).get$asSassList();
+    },
+    $signature: 23
+  };
+  A._append__closure.prototype = {
+    call$1(selector) {
+      return A.SassApiValue_assertSelector(selector, false, null);
+    },
+    $signature: 139
+  };
+  A._append__closure0.prototype = {
+    call$2($parent, child) {
+      var t1 = child.components,
+        t2 = this.span;
+      return A.SelectorList$(new A.MappedListIterable(t1, new A._append___closure($parent, t2), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector>")), t2).nestWithin$1($parent);
+    },
+    $signature: 140
+  };
+  A._append___closure.prototype = {
+    call$1(complex) {
+      var _0_0, t1, component, rest, newCompound, t2, _null = null;
+      if (complex.leadingCombinators.length !== 0)
+        throw A.wrapException(A.SassScriptException$("Can't append " + complex.toString$0(0) + " to " + this.parent.toString$0(0) + ".", _null));
+      _0_0 = complex.components;
+      t1 = _0_0.length >= 1;
+      if (t1) {
+        component = _0_0[0];
+        rest = B.JSArray_methods.sublist$1(_0_0, 1);
+      } else {
+        rest = _null;
+        component = rest;
+      }
+      if (!t1)
+        throw A.wrapException(A.StateError$("Pattern matching error"));
+      newCompound = A._prependParent(component.selector);
+      if (newCompound == null)
+        throw A.wrapException(A.SassScriptException$("Can't append " + complex.toString$0(0) + " to " + this.parent.toString$0(0) + ".", _null));
+      t1 = this.span;
+      t2 = A._setArrayType([new A.ComplexSelectorComponent(newCompound, A.List_List$unmodifiable(component.combinators, type$.CssValue_Combinator), t1)], type$.JSArray_ComplexSelectorComponent);
+      B.JSArray_methods.addAll$1(t2, rest);
+      return A.ComplexSelector$(B.List_empty1, t2, t1, false);
+    },
+    $signature: 57
+  };
+  A._extend_closure.prototype = {
+    call$1($arguments) {
+      var target, source,
+        _s8_ = "selector",
+        _s8_0 = "extendee",
+        _s8_1 = "extender",
+        t1 = J.getInterceptor$asx($arguments),
+        selector = A.SassApiValue_assertSelector(t1.$index($arguments, 0), false, _s8_);
+      selector.assertNotBogus$1$name(_s8_);
+      target = A.SassApiValue_assertSelector(t1.$index($arguments, 1), false, _s8_0);
+      target.assertNotBogus$1$name(_s8_0);
+      source = A.SassApiValue_assertSelector(t1.$index($arguments, 2), false, _s8_1);
+      source.assertNotBogus$1$name(_s8_1);
+      t1 = A.EvaluationContext_currentOrNull();
+      return A.ExtensionStore__extendOrReplace(selector, source, target, B.ExtendMode_allTargets_allTargets, (t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan()).get$asSassList();
+    },
+    $signature: 23
+  };
+  A._replace_closure.prototype = {
+    call$1($arguments) {
+      var target, source,
+        _s8_ = "selector",
+        _s8_0 = "original",
+        _s11_ = "replacement",
+        t1 = J.getInterceptor$asx($arguments),
+        selector = A.SassApiValue_assertSelector(t1.$index($arguments, 0), false, _s8_);
+      selector.assertNotBogus$1$name(_s8_);
+      target = A.SassApiValue_assertSelector(t1.$index($arguments, 1), false, _s8_0);
+      target.assertNotBogus$1$name(_s8_0);
+      source = A.SassApiValue_assertSelector(t1.$index($arguments, 2), false, _s11_);
+      source.assertNotBogus$1$name(_s11_);
+      t1 = A.EvaluationContext_currentOrNull();
+      return A.ExtensionStore__extendOrReplace(selector, source, target, B.ExtendMode_replace_replace, (t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan()).get$asSassList();
+    },
+    $signature: 23
+  };
+  A._unify_closure.prototype = {
+    call$1($arguments) {
+      var selector2,
+        _s9_ = "selector1",
+        _s9_0 = "selector2",
+        t1 = J.getInterceptor$asx($arguments),
+        selector1 = A.SassApiValue_assertSelector(t1.$index($arguments, 0), false, _s9_);
+      selector1.assertNotBogus$1$name(_s9_);
+      selector2 = A.SassApiValue_assertSelector(t1.$index($arguments, 1), false, _s9_0);
+      selector2.assertNotBogus$1$name(_s9_0);
+      t1 = selector1.unify$1(selector2);
+      t1 = t1 == null ? null : t1.get$asSassList();
+      return t1 == null ? B.C__SassNull : t1;
+    },
+    $signature: 6
+  };
+  A._isSuperselector_closure.prototype = {
+    call$1($arguments) {
+      var selector2,
+        t1 = J.getInterceptor$asx($arguments),
+        selector1 = A.SassApiValue_assertSelector(t1.$index($arguments, 0), false, "super");
+      selector1.assertNotBogus$1$name("super");
+      selector2 = A.SassApiValue_assertSelector(t1.$index($arguments, 1), false, "sub");
+      selector2.assertNotBogus$1$name("sub");
+      return A.listIsSuperselector(selector1.components, selector2.components) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._simpleSelectors_closure.prototype = {
+    call$1($arguments) {
+      var t1 = A.SassApiValue_assertCompoundSelector(J.$index$asx($arguments, 0), "selector").components;
+      return A.SassList$(new A.MappedListIterable(t1, new A._simpleSelectors__closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value>")), B.ListSeparator_ECn, false);
+    },
+    $signature: 23
+  };
+  A._simpleSelectors__closure.prototype = {
+    call$1(simple) {
+      return new A.SassString(A.serializeSelector(simple, true), false);
+    },
+    $signature: 605
+  };
+  A._parse_closure.prototype = {
+    call$1($arguments) {
+      return A.SassApiValue_assertSelector(J.$index$asx($arguments, 0), false, "selector").get$asSassList();
+    },
+    $signature: 23
+  };
+  A.module_closure.prototype = {
+    call$1($arguments) {
+      var limit, t2, chunks, i, lastEnd, match, t3,
+        t1 = J.getInterceptor$asx($arguments),
+        string = t1.$index($arguments, 0).assertString$1("string"),
+        separator = t1.$index($arguments, 1).assertString$1("separator");
+      t1 = t1.$index($arguments, 2).get$realNull();
+      limit = t1 == null ? null : t1.assertNumber$1("limit").assertInt$1("limit");
+      if (limit != null && limit < 1)
+        throw A.wrapException(A.SassScriptException$("$limit: Must be 1 or greater, was " + A.S(limit) + ".", null));
+      t1 = string._string$_text;
+      if (t1.length === 0)
+        return B.SassList_bdS0;
+      else {
+        t2 = separator._string$_text;
+        if (t2.length === 0)
+          return A.SassList$(A.MappedIterable_MappedIterable(new A.Runes(t1), new A.module__closure(string), type$.Runes._eval$1("Iterable.E"), type$.Value), B.ListSeparator_ECn, true);
+      }
+      chunks = A._setArrayType([], type$.JSArray_String);
+      for (t2 = B.JSString_methods.allMatches$1(t2, t1), t2 = new A._StringAllMatchesIterator(t2._input, t2._pattern, t2.__js_helper$_index), i = 0, lastEnd = 0; t2.moveNext$0();) {
+        match = t2.__js_helper$_current;
+        t3 = match.start;
+        chunks.push(B.JSString_methods.substring$2(t1, lastEnd, t3));
+        lastEnd = t3 + match.pattern.length;
+        ++i;
+        if (i === limit)
+          break;
+      }
+      chunks.push(B.JSString_methods.substring$1(t1, lastEnd));
+      return A.SassList$(new A.MappedListIterable(chunks, new A.module__closure0(string), type$.MappedListIterable_String_Value), B.ListSeparator_ECn, true);
+    },
+    $signature: 23
+  };
+  A.module__closure.prototype = {
+    call$1(rune) {
+      return new A.SassString(A.Primitives_stringFromCharCode(rune), this.string._hasQuotes);
+    },
+    $signature: 591
+  };
+  A.module__closure0.prototype = {
+    call$1(chunk) {
+      return new A.SassString(chunk, this.string._hasQuotes);
+    },
+    $signature: 590
+  };
+  A._unquote_closure.prototype = {
+    call$1($arguments) {
+      var string = J.$index$asx($arguments, 0).assertString$1("string");
+      if (!string._hasQuotes)
+        return string;
+      return new A.SassString(string._string$_text, false);
+    },
+    $signature: 17
+  };
+  A._quote_closure.prototype = {
+    call$1($arguments) {
+      var string = J.$index$asx($arguments, 0).assertString$1("string");
+      if (string._hasQuotes)
+        return string;
+      return new A.SassString(string._string$_text, true);
+    },
+    $signature: 17
+  };
+  A._length_closure.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber(J.$index$asx($arguments, 0).assertString$1("string").get$_sassLength(), null);
+    },
+    $signature: 11
+  };
+  A._insert_closure.prototype = {
+    call$1($arguments) {
+      var indexInt, codeUnitIndex, _s5_ = "index",
+        t1 = J.getInterceptor$asx($arguments),
+        string = t1.$index($arguments, 0).assertString$1("string"),
+        insert = t1.$index($arguments, 1).assertString$1("insert"),
+        index = t1.$index($arguments, 2).assertNumber$1(_s5_);
+      index.assertNoUnits$1(_s5_);
+      indexInt = index.assertInt$1(_s5_);
+      if (indexInt < 0)
+        indexInt = Math.max(string.get$_sassLength() + indexInt + 2, 0);
+      t1 = string._string$_text;
+      codeUnitIndex = A.codepointIndexToCodeUnitIndex(t1, A._codepointForIndex(indexInt, string.get$_sassLength(), false));
+      return new A.SassString(B.JSString_methods.replaceRange$3(t1, codeUnitIndex, codeUnitIndex, insert._string$_text), string._hasQuotes);
+    },
+    $signature: 17
+  };
+  A._index_closure.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        t2 = t1.$index($arguments, 0).assertString$1("string")._string$_text,
+        codeUnitIndex = B.JSString_methods.indexOf$1(t2, t1.$index($arguments, 1).assertString$1("substring")._string$_text);
+      if (codeUnitIndex === -1)
+        return B.C__SassNull;
+      return A.SassNumber_SassNumber(A.codeUnitIndexToCodepointIndex(t2, codeUnitIndex) + 1, null);
+    },
+    $signature: 6
+  };
+  A._slice_closure.prototype = {
+    call$1($arguments) {
+      var lengthInCodepoints, endInt, startCodepoint, endCodepoint,
+        _s8_ = "start-at",
+        t1 = J.getInterceptor$asx($arguments),
+        string = t1.$index($arguments, 0).assertString$1("string"),
+        start = t1.$index($arguments, 1).assertNumber$1(_s8_),
+        end = t1.$index($arguments, 2).assertNumber$1("end-at");
+      start.assertNoUnits$1(_s8_);
+      end.assertNoUnits$1("end-at");
+      lengthInCodepoints = string.get$_sassLength();
+      endInt = end.assertInt$0();
+      if (endInt === 0)
+        return string._hasQuotes ? $.$get$_emptyQuoted() : $.$get$_emptyUnquoted();
+      startCodepoint = A._codepointForIndex(start.assertInt$0(), lengthInCodepoints, false);
+      endCodepoint = A._codepointForIndex(endInt, lengthInCodepoints, true);
+      if (endCodepoint === lengthInCodepoints)
+        --endCodepoint;
+      if (endCodepoint < startCodepoint)
+        return string._hasQuotes ? $.$get$_emptyQuoted() : $.$get$_emptyUnquoted();
+      t1 = string._string$_text;
+      return new A.SassString(B.JSString_methods.substring$2(t1, A.codepointIndexToCodeUnitIndex(t1, startCodepoint), A.codepointIndexToCodeUnitIndex(t1, endCodepoint + 1)), string._hasQuotes);
+    },
+    $signature: 17
+  };
+  A._toUpperCase_closure.prototype = {
+    call$1($arguments) {
+      var t1, t2, i, t3, t4,
+        string = J.$index$asx($arguments, 0).assertString$1("string");
+      for (t1 = string._string$_text, t2 = t1.length, i = 0, t3 = ""; i < t2; ++i) {
+        t4 = t1.charCodeAt(i);
+        t3 += A.Primitives_stringFromCharCode(t4 >= 97 && t4 <= 122 ? t4 & 4294967263 : t4);
+      }
+      return new A.SassString(t3.charCodeAt(0) == 0 ? t3 : t3, string._hasQuotes);
+    },
+    $signature: 17
+  };
+  A._toLowerCase_closure.prototype = {
+    call$1($arguments) {
+      var t1, t2, i, t3, t4,
+        string = J.$index$asx($arguments, 0).assertString$1("string");
+      for (t1 = string._string$_text, t2 = t1.length, i = 0, t3 = ""; i < t2; ++i) {
+        t4 = t1.charCodeAt(i);
+        t3 += A.Primitives_stringFromCharCode(t4 >= 65 && t4 <= 90 ? t4 | 32 : t4);
+      }
+      return new A.SassString(t3.charCodeAt(0) == 0 ? t3 : t3, string._hasQuotes);
+    },
+    $signature: 17
+  };
+  A._uniqueId_closure.prototype = {
+    call$1($arguments) {
+      var t1 = $.$get$_previousUniqueId() + ($.$get$_random().nextInt$1(36) + 1);
+      $._previousUniqueId = t1;
+      if (t1 > Math.pow(36, 6))
+        $._previousUniqueId = B.JSInt_methods.$mod($.$get$_previousUniqueId(), A._asInt(Math.pow(36, 6)));
+      return new A.SassString("u" + B.JSString_methods.padLeft$2(B.JSInt_methods.toRadixString$1($.$get$_previousUniqueId(), 36), 6, "0"), false);
+    },
+    $signature: 17
+  };
+  A.ImportCache.prototype = {
+    canonicalize$4$baseImporter$baseUrl$forImport(_, url, baseImporter, baseUrl, forImport) {
+      var t1, resolvedUrl, key, relativeResult, t2, t3, t4, t5, t6, cacheable, i, importer, perImporterKey, t7, _1_0, _1_2_isSet, _1_2, result, _2_0, _2_1, _2_5_isSet, _2_3, _2_5, _2_3_isSet, j, _this = this, _null = null;
+      if (A.isBrowser())
+        t1 = (baseImporter == null || baseImporter instanceof A.NoOpImporter) && _this._importers.length === 0;
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(string$.Custom);
+      if (baseImporter != null && url.get$scheme() === "") {
+        resolvedUrl = baseUrl == null ? _null : baseUrl.resolveUri$1(url);
+        if (resolvedUrl == null)
+          resolvedUrl = url;
+        key = new A._Record_3_forImport(baseImporter, resolvedUrl, forImport);
+        relativeResult = _this._perImporterCanonicalizeCache.putIfAbsent$2(key, new A.ImportCache_canonicalize_closure(_this, baseImporter, resolvedUrl, baseUrl, forImport, key, url));
+        if (relativeResult != null)
+          return relativeResult;
+      }
+      key = new A._Record_2_forImport(url, forImport);
+      t1 = _this._canonicalizeCache;
+      if (t1.containsKey$1(key))
+        return t1.$index(0, key);
+      for (t2 = _this._importers, t3 = type$.Record_1_nullable_Object, t4 = _this._perImporterCanonicalizeCache, t5 = type$.nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl, t6 = type$.Record_3_Importer_and_Uri_and_Uri_originalUrl, cacheable = true, i = 0; i < t2.length; ++i) {
+        importer = t2[i];
+        perImporterKey = new A._Record_3_forImport(importer, url, forImport);
+        if (t4.containsKey$1(perImporterKey)) {
+          t7 = t4.$index(0, perImporterKey);
+          _1_0 = new A._Record_1(t7 == null ? t5._as(t7) : t7);
+        } else
+          _1_0 = _null;
+        _1_2_isSet = t3._is(_1_0);
+        if (_1_2_isSet) {
+          _1_2 = _1_0._0;
+          t7 = _1_2 != null;
+          if (t7) {
+            t6._as(_1_2);
+            result = _1_2;
+          } else
+            result = _null;
+        } else {
+          result = _null;
+          _1_2 = result;
+          t7 = false;
+        }
+        if (t7)
+          return result;
+        if (_1_2_isSet)
+          t7 = _1_2 == null;
+        else
+          t7 = false;
+        if (t7)
+          continue;
+        $label0$1: {
+          _2_0 = _this._canonicalize$4(importer, url, baseUrl, forImport);
+          _2_1 = _2_0._0;
+          _2_5_isSet = _2_1 != null;
+          if (_2_5_isSet) {
+            result = _2_1 == null ? t6._as(_2_1) : _2_1;
+            _2_3 = _2_0._1;
+            t7 = _2_3;
+            _2_5 = t7;
+            t7 = t7 && cacheable;
+          } else {
+            result = _null;
+            _2_3 = result;
+            _2_5 = _2_3;
+            t7 = false;
+          }
+          if (t7) {
+            t1.$indexSet(0, key, result);
+            return result;
+          }
+          if (_2_5_isSet) {
+            t7 = _2_5;
+            _2_3_isSet = _2_5_isSet;
+          } else {
+            _2_3 = _2_0._1;
+            t7 = _2_3;
+            _2_3_isSet = true;
+          }
+          t7 = t7 && !cacheable;
+          if (t7) {
+            t4.$indexSet(0, perImporterKey, _2_1);
+            if (_2_1 != null)
+              return _2_1;
+            break $label0$1;
+          }
+          t7 = false === (_2_3_isSet ? _2_3 : _2_0._1);
+          if (t7) {
+            if (cacheable) {
+              for (j = 0; j < i; ++j)
+                t4.$indexSet(0, new A._Record_3_forImport(t2[j], url, forImport), _null);
+              cacheable = false;
+            }
+            if (_2_1 != null)
+              return _2_1;
+          }
+        }
+      }
+      if (cacheable)
+        t1.$indexSet(0, key, _null);
+      return _null;
+    },
+    canonicalize$3$baseImporter$baseUrl(_, url, baseImporter, baseUrl) {
+      return this.canonicalize$4$baseImporter$baseUrl$forImport(0, url, baseImporter, baseUrl, false);
+    },
+    _canonicalize$4(importer, url, baseUrl, forImport) {
+      var passContainingUrl, canonicalizeContext, t1, result, cacheable, _null = null;
+      if (baseUrl != null)
+        passContainingUrl = url.get$scheme() === "" || importer.isNonCanonicalScheme$1(url.get$scheme());
+      else
+        passContainingUrl = false;
+      canonicalizeContext = new A.CanonicalizeContext(forImport, passContainingUrl ? baseUrl : _null);
+      t1 = type$.nullable_Object;
+      result = A.runZoned(new A.ImportCache__canonicalize_closure(importer, url), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__canonicalizeContext, canonicalizeContext], t1, t1), type$.nullable_Uri);
+      cacheable = !passContainingUrl || !canonicalizeContext._wasContainingUrlAccessed;
+      if (result == null)
+        return new A._Record_2(_null, cacheable);
+      if (result.get$scheme() === "")
+        A.WarnForDeprecation_warnForDeprecation(this._logger, B.Deprecation_IMm, "Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2e_Rela, _null, _null);
+      else if (importer.isNonCanonicalScheme$1(result.get$scheme()))
+        throw A.wrapException("Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2c_whicu);
+      return new A._Record_2(new A._Record_3_originalUrl(importer, result, url), cacheable);
+    },
+    importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, quiet) {
+      return this._importCache.putIfAbsent$2(canonicalUrl, new A.ImportCache_importCanonical_closure(this, importer, canonicalUrl, originalUrl, quiet));
+    },
+    importCanonical$3$originalUrl(importer, canonicalUrl, originalUrl) {
+      return this.importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, false);
+    },
+    importCanonical$2(importer, canonicalUrl) {
+      return this.importCanonical$4$originalUrl$quiet(importer, canonicalUrl, null, false);
+    },
+    humanize$1(canonicalUrl) {
+      var t1 = A.IterableNullableExtension_whereNotNull(this._canonicalizeCache.get$values(0), type$.Record_3_Importer_and_Uri_and_Uri_originalUrl),
+        t2 = t1.$ti;
+      t2 = A.NullableExtension_andThen(A.minBy(new A.MappedIterable(new A.WhereIterable(t1, new A.ImportCache_humanize_closure(canonicalUrl), t2._eval$1("WhereIterable<Iterable.E>")), new A.ImportCache_humanize_closure0(), t2._eval$1("MappedIterable<Iterable.E,Uri>")), new A.ImportCache_humanize_closure1()), new A.ImportCache_humanize_closure2(canonicalUrl));
+      return t2 == null ? canonicalUrl : t2;
+    },
+    sourceMapUrl$1(_, canonicalUrl) {
+      var t1 = this._resultsCache.$index(0, canonicalUrl);
+      t1 = t1 == null ? null : t1.get$sourceMapUrl(0);
+      return t1 == null ? canonicalUrl : t1;
+    },
+    clearCanonicalize$1(url) {
+      var t1 = this._canonicalizeCache;
+      t1.remove$1(0, new A._Record_2_forImport(url, false));
+      t1.remove$1(0, new A._Record_2_forImport(url, true));
+      this._perImporterCanonicalizeCache.removeWhere$1(0, new A.ImportCache_clearCanonicalize_closure(this, url));
+    },
+    clearImport$1(canonicalUrl) {
+      this._resultsCache.remove$1(0, canonicalUrl);
+      this._importCache.remove$1(0, canonicalUrl);
+    }
+  };
+  A.ImportCache_canonicalize_closure.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.baseUrl,
+        _0_0 = t1._canonicalize$4(_this.baseImporter, _this.resolvedUrl, t2, _this.forImport);
+      if (t2 != null)
+        t1._nonCanonicalRelativeUrls.$indexSet(0, _this.key, _this.url);
+      return _0_0._0;
+    },
+    $signature: 119
+  };
+  A.ImportCache__canonicalize_closure.prototype = {
+    call$0() {
+      return this.importer.canonicalize$1(0, this.url);
+    },
+    $signature: 141
+  };
+  A.ImportCache_importCanonical_closure.prototype = {
+    call$0() {
+      var t2, t3, t4, t5, _this = this,
+        t1 = _this.canonicalUrl,
+        result = _this.importer.load$1(0, t1);
+      if (result == null)
+        return null;
+      t2 = _this.$this;
+      t2._resultsCache.$indexSet(0, t1, result);
+      t3 = result.contents;
+      t4 = result.syntax;
+      t5 = _this.originalUrl;
+      t1 = t5 == null ? t1 : t5.resolveUri$1(t1);
+      return A.Stylesheet_Stylesheet$parse(t3, t4, _this.quiet ? $.$get$Logger_quiet() : t2._logger, t1);
+    },
+    $signature: 91
+  };
+  A.ImportCache_humanize_closure.prototype = {
+    call$1(result) {
+      return J.$eq$(result._1, this.canonicalUrl);
+    },
+    $signature: 541
+  };
+  A.ImportCache_humanize_closure0.prototype = {
+    call$1(result) {
+      return result._2;
+    },
+    $signature: 540
+  };
+  A.ImportCache_humanize_closure1.prototype = {
+    call$1(url) {
+      return url.get$path(url).length;
+    },
+    $signature: 85
+  };
+  A.ImportCache_humanize_closure2.prototype = {
+    call$1(url) {
+      var t1 = $.$get$url(),
+        t2 = this.canonicalUrl;
+      return url.resolve$1(0, A.ParsedPath_ParsedPath$parse(t2.get$path(t2), t1.style).get$basename());
+    },
+    $signature: 46
+  };
+  A.ImportCache_clearCanonicalize_closure.prototype = {
+    call$2(key, _) {
+      var t1 = this.url;
+      return J.$eq$(key._1, t1) || J.$eq$(this.$this._nonCanonicalRelativeUrls.$index(0, key), t1);
+    },
+    $signature: 538
+  };
+  A.Importer.prototype = {
+    modificationTime$1(url) {
+      return new A.DateTime(Date.now(), false);
+    },
+    couldCanonicalize$2(url, canonicalUrl) {
+      return true;
+    },
+    isNonCanonicalScheme$1(scheme) {
+      return false;
+    }
+  };
+  A.AsyncImporter.prototype = {};
+  A.CanonicalizeContext.prototype = {};
+  A.FilesystemImporter.prototype = {
+    canonicalize$1(_, url) {
+      var resolved, _0_0;
+      if (url.get$scheme() === "file")
+        resolved = A.resolveImportPath($.$get$context().style.pathFromUri$1(A._parseUri(url)));
+      else if (url.get$scheme() !== "")
+        return null;
+      else {
+        _0_0 = this._loadPath;
+        if (_0_0 != null) {
+          resolved = A.resolveImportPath(A.join(_0_0, $.$get$context().style.pathFromUri$1(A._parseUri(url)), null));
+          if (resolved != null && this._loadPathDeprecated)
+            A.warnForDeprecation(string$.Using_t, B.Deprecation_B4v);
+        } else
+          return null;
+      }
+      return A.NullableExtension_andThen(resolved, new A.FilesystemImporter_canonicalize_closure());
+    },
+    load$1(_, url) {
+      var path = $.$get$context().style.pathFromUri$1(A._parseUri(url)),
+        t1 = A.readFile(path),
+        t2 = A.Syntax_forPath(path),
+        t3 = url.get$scheme();
+      if (t3 === "")
+        A.throwExpression(A.ArgumentError$value(url, "sourceMapUrl", "must be absolute"));
+      return new A.ImporterResult(t1, url, t2);
+    },
+    modificationTime$1(url) {
+      return A.modificationTime($.$get$context().style.pathFromUri$1(A._parseUri(url)));
+    },
+    couldCanonicalize$2(url, canonicalUrl) {
+      var t1, t2, basename, canonicalBasename;
+      if (url.get$scheme() !== "file" && url.get$scheme() !== "")
+        return false;
+      if (canonicalUrl.get$scheme() !== "file")
+        return false;
+      t1 = $.$get$url();
+      t2 = t1.style;
+      basename = A.ParsedPath_ParsedPath$parse(url.get$path(url), t2).get$basename();
+      canonicalBasename = A.ParsedPath_ParsedPath$parse(canonicalUrl.get$path(canonicalUrl), t2).get$basename();
+      if (!B.JSString_methods.startsWith$1(basename, "_") && B.JSString_methods.startsWith$1(canonicalBasename, "_"))
+        canonicalBasename = B.JSString_methods.substring$1(canonicalBasename, 1);
+      return basename === canonicalBasename || basename === t1.withoutExtension$1(canonicalBasename);
+    },
+    toString$0(_) {
+      var t1 = this._loadPath;
+      return t1 == null ? "<absolute file importer>" : t1;
+    }
+  };
+  A.FilesystemImporter_canonicalize_closure.prototype = {
+    call$1(resolved) {
+      var t2, t0, _null = null,
+        t1 = A.isNodeJs() ? self.process : _null;
+      if (!J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "win32")) {
+        t1 = A.isNodeJs() ? self.process : _null;
+        t1 = J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "darwin");
+      } else
+        t1 = true;
+      if (t1) {
+        t1 = $.$get$context();
+        t2 = A._realCasePath(A.absolute(t1.normalize$1(resolved), _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null));
+        t0 = t2;
+        t2 = t1;
+        t1 = t0;
+      } else {
+        t1 = $.$get$context();
+        t2 = t1.canonicalize$1(0, resolved);
+        t0 = t2;
+        t2 = t1;
+        t1 = t0;
+      }
+      return t2.toUri$1(t1);
+    },
+    $signature: 142
+  };
+  A.NoOpImporter.prototype = {};
+  A.NodePackageImporter.prototype = {
+    isNonCanonicalScheme$1(scheme) {
+      return scheme === "pkg";
+    },
+    canonicalize$1(_, url) {
+      var packageName, jsonPath, jsonString, packageManifest, e, t1, t2, t3, t4, baseDirectory, parts, t5, $name, subpath, packageRoot, exception, _1_0, rootPath, subpathInRoot, _this = this, _null = null;
+      if (url.get$scheme() === "file")
+        return $.$get$FilesystemImporter_cwd().canonicalize$1(0, url);
+      if (url.get$scheme() !== "pkg")
+        return _null;
+      if (url.get$hasAuthority())
+        throw A.wrapException(string$.A_pkg_h);
+      else {
+        t1 = $.$get$url();
+        t2 = t1.style;
+        if (t2.rootLength$1(url.get$path(url)) > 0)
+          throw A.wrapException("A pkg: URL's path must not begin with /.");
+        else if (url.get$path(url).length === 0)
+          throw A.wrapException("A pkg: URL must not have an empty path.");
+        else if (url.get$hasQuery() || url.get$hasFragment())
+          throw A.wrapException(string$.A_pkg_q);
+      }
+      t3 = A.canonicalizeContext();
+      t3._wasContainingUrlAccessed = true;
+      t3 = t3._containingUrl;
+      if ((t3 == null ? _null : t3.get$scheme()) === "file") {
+        t3 = A.canonicalizeContext();
+        t3._wasContainingUrlAccessed = true;
+        t3 = t3._containingUrl;
+        t3.toString;
+        t4 = $.$get$context();
+        baseDirectory = t4.dirname$1(t4.style.pathFromUri$1(A._parseUri(t3)));
+      } else {
+        t3 = _this.__NodePackageImporter__entryPointDirectory_F;
+        t3 === $ && A.throwUnnamedLateFieldNI();
+        baseDirectory = t3;
+      }
+      packageName = null;
+      parts = t1.split$1(0, url.get$path(url));
+      t3 = B.JSArray_methods.removeAt$1(parts, 0);
+      t4 = $.$get$context();
+      t3.toString;
+      t5 = t4.style;
+      $name = t5.pathFromUri$1(A._parseUri(t3));
+      if (B.JSString_methods.startsWith$1($name, "@"))
+        $name = parts.length !== 0 ? t1.join$2(0, $name, B.JSArray_methods.removeAt$1(parts, 0)) : $name;
+      subpath = parts.length !== 0 ? t5.pathFromUri$1(A._parseUri(t1.joinAll$1(parts))) : _null;
+      packageName = $name;
+      if (!J.startsWith$1$s(packageName, "."))
+        if (!J.contains$1$asx(packageName, "\\"))
+          if (!J.contains$1$asx(packageName, "%"))
+            t1 = J.startsWith$1$s(packageName, "@") && !J.contains$1$asx(packageName, t2.get$separator(t2));
+          else
+            t1 = true;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      if (t1)
+        return _null;
+      packageRoot = _this._resolvePackageRoot$2(packageName, baseDirectory);
+      if (packageRoot == null)
+        return _null;
+      jsonPath = A.join(packageRoot, "package.json", _null);
+      jsonString = A.readFile(jsonPath);
+      packageManifest = null;
+      try {
+        packageManifest = type$.Map_String_dynamic._as(B.C_JsonCodec.decode$1(jsonString));
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        t1 = A.S(jsonPath);
+        t2 = A.S(packageName);
+        t3 = A.S(e);
+        throw A.wrapException("Failed to parse " + t1 + ' for "pkg:' + t2 + '": ' + t3);
+      }
+      _1_0 = _this._resolvePackageExports$4(packageRoot, subpath, packageManifest, packageName);
+      if (_1_0 != null)
+        if (B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(_1_0, t5)._splitExtension$1(1)[1]))
+          return t4.toUri$1(t4.canonicalize$1(0, _1_0));
+        else {
+          t1 = subpath == null ? "root" : subpath;
+          throw A.wrapException("The export for '" + t1 + "' in '" + A.S(packageName) + "' resolved to '" + _1_0 + string$.x27x2c_whi);
+        }
+      if (subpath == null) {
+        rootPath = _this._resolvePackageRootValues$2(packageRoot, packageManifest);
+        return rootPath != null ? t4.toUri$1(t4.canonicalize$1(0, rootPath)) : _null;
+      }
+      subpathInRoot = A.join(packageRoot, subpath, _null);
+      return $.$get$FilesystemImporter_cwd().canonicalize$1(0, t4.toUri$1(subpathInRoot));
+    },
+    load$1(_, url) {
+      return $.$get$FilesystemImporter_cwd().load$1(0, url);
+    },
+    _resolvePackageRoot$2(packageName, baseDirectory) {
+      var potentialPackage, t1;
+      for (; true;) {
+        potentialPackage = A.join(baseDirectory, "node_modules", packageName);
+        if (A.dirExists(potentialPackage))
+          return potentialPackage;
+        t1 = $.$get$context();
+        if (t1.split$1(0, baseDirectory).length === 1)
+          return null;
+        baseDirectory = t1.dirname$1(baseDirectory);
+      }
+    },
+    _resolvePackageRootValues$2(packageRoot, packageManifest) {
+      var t1, sassValue, _1_0, styleValue, _null = null,
+        _0_0 = packageManifest.$index(0, "sass");
+      if (typeof _0_0 == "string") {
+        t1 = B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(_0_0, $.$get$url().style)._splitExtension$1(1)[1]);
+        sassValue = _0_0;
+      } else {
+        sassValue = _null;
+        t1 = false;
+      }
+      if (t1)
+        return A.join(packageRoot, sassValue, _null);
+      else {
+        _1_0 = packageManifest.$index(0, "style");
+        if (typeof _1_0 == "string") {
+          t1 = B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(_1_0, $.$get$url().style)._splitExtension$1(1)[1]);
+          styleValue = _1_0;
+        } else {
+          styleValue = _null;
+          t1 = false;
+        }
+        if (t1)
+          return A.join(packageRoot, styleValue, _null);
+      }
+      return A.resolveImportPath(A.join(packageRoot, "index", _null));
+    },
+    _resolvePackageExports$4(packageRoot, subpath, packageManifest, packageName) {
+      var _0_0, _1_0, _this = this,
+        exports = packageManifest.$index(0, "exports");
+      if (exports == null)
+        return null;
+      _0_0 = _this._nodePackageExportsResolve$5(packageRoot, _this._exportsToCheck$1(subpath), exports, subpath, packageName);
+      if (_0_0 != null)
+        return _0_0;
+      if (subpath != null && A.ParsedPath_ParsedPath$parse(subpath, $.$get$url().style)._splitExtension$1(1)[1].length !== 0)
+        return null;
+      _1_0 = _this._nodePackageExportsResolve$5(packageRoot, _this._exportsToCheck$2$addIndex(subpath, true), exports, subpath, packageName);
+      if (_1_0 != null)
+        return _1_0;
+      return null;
+    },
+    _nodePackageExportsResolve$5(packageRoot, subpathVariants, exports, subpath, packageName) {
+      var t1, matches, _1_1, path;
+      if (type$.Map_String_dynamic._is(exports) && J.any$1$ax(exports.get$keys(exports), new A.NodePackageImporter__nodePackageExportsResolve_closure()) && J.any$1$ax(exports.get$keys(exports), new A.NodePackageImporter__nodePackageExportsResolve_closure0()))
+        throw A.wrapException("`exports` in " + packageName + string$.x20can_n + J.map$1$1$ax(J.get$keys$z(exports), new A.NodePackageImporter__nodePackageExportsResolve_closure1(), type$.String).join$1(0, ",") + " in " + A.join(packageRoot, "package.json", null) + ".");
+      t1 = A.IterableNullableExtension_whereNotNull(new A.MappedListIterable(subpathVariants, new A.NodePackageImporter__nodePackageExportsResolve_closure2(this, exports, packageRoot), A._arrayInstanceType(subpathVariants)._eval$1("MappedListIterable<1,String?>")), type$.String);
+      matches = A.List_List$of(t1, true, t1.$ti._eval$1("Iterable.E"));
+      $label0$1: {
+        _1_1 = matches.length;
+        if (_1_1 === 1) {
+          path = matches[0];
+          t1 = path;
+          break $label0$1;
+        }
+        if (_1_1 <= 0) {
+          t1 = null;
+          break $label0$1;
+        }
+        t1 = subpath == null ? "root" : subpath;
+        t1 = A.throwExpression(string$.Unable + t1 + " in " + packageName + " should be used. \n\nFound:\n" + B.JSArray_methods.join$1(matches, "\n"));
+      }
+      return t1;
+    },
+    _compareExpansionKeys$2(keyA, keyB) {
+      var t1 = B.JSString_methods.contains$1(keyA, "*"),
+        baseLengthA = t1 ? B.JSString_methods.indexOf$1(keyA, "*") + 1 : keyA.length,
+        t2 = B.JSString_methods.contains$1(keyB, "*"),
+        baseLengthB = t2 ? B.JSString_methods.indexOf$1(keyB, "*") + 1 : keyB.length;
+      if (baseLengthA > baseLengthB)
+        return -1;
+      if (baseLengthB > baseLengthA)
+        return 1;
+      if (!t1)
+        return 1;
+      if (!t2)
+        return -1;
+      t1 = keyA.length;
+      t2 = keyB.length;
+      if (t1 > t2)
+        return -1;
+      if (t2 > t1)
+        return 1;
+      return 0;
+    },
+    _packageTargetResolve$4(subpath, exports, packageRoot, patternMatch) {
+      var t2, string, path, map, key, value, _1_0, array, _2_0, _null = null,
+        t1 = typeof exports == "string";
+      if (t1) {
+        t2 = !B.JSString_methods.startsWith$1(exports, "./");
+        string = exports;
+      } else {
+        string = _null;
+        t2 = false;
+      }
+      if (t2)
+        throw A.wrapException("Export '" + A.S(string) + string$.x27x20must + packageRoot + "'.");
+      if (t1) {
+        t2 = patternMatch != null;
+        string = exports;
+      } else {
+        string = _null;
+        t2 = false;
+      }
+      if (t2) {
+        t1 = J.replaceFirst$2$s(string, "*", patternMatch);
+        t2 = $.$get$context();
+        path = t2.normalize$1(A.join(packageRoot, t2.style.pathFromUri$1(A._parseUri(t1)), _null));
+        return A.fileExists(path) ? path : _null;
+      }
+      string = t1 ? exports : _null;
+      if (t1) {
+        t1 = $.$get$context();
+        string.toString;
+        return A.join(packageRoot, t1.style.pathFromUri$1(A._parseUri(string)), _null);
+      }
+      t1 = type$.Map_String_dynamic._is(exports);
+      map = t1 ? exports : _null;
+      if (t1) {
+        for (t1 = A.MapExtensions_get_pairs(map, type$.String, type$.dynamic), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+          t2 = t1.get$current(t1);
+          key = t2._0;
+          value = t2._1;
+          if (!B.Set_TnQrk.contains$1(0, key))
+            continue;
+          if (value == null)
+            continue;
+          _1_0 = this._packageTargetResolve$4(subpath, value, packageRoot, patternMatch);
+          if (_1_0 != null)
+            return _1_0;
+        }
+        return _null;
+      }
+      if (type$.List_nullable_Object._is(exports) && J.get$length$asx(exports) <= 0)
+        return _null;
+      t1 = type$.List_dynamic._is(exports);
+      array = t1 ? exports : _null;
+      if (t1) {
+        for (t1 = J.get$iterator$ax(array); t1.moveNext$0();) {
+          value = t1.get$current(t1);
+          if (value == null)
+            continue;
+          _2_0 = this._packageTargetResolve$4(subpath, value, packageRoot, patternMatch);
+          if (_2_0 != null)
+            return _2_0;
+        }
+        return _null;
+      }
+      throw A.wrapException("Invalid 'exports' value " + A.S(exports) + " in " + A.join(packageRoot, "package.json", _null) + ".");
+    },
+    _packageTargetResolve$3(subpath, exports, packageRoot) {
+      return this._packageTargetResolve$4(subpath, exports, packageRoot, null);
+    },
+    _getMainExport$1(exports) {
+      var t1, t2, map, _0_4, $export;
+      $label0$0: {
+        if (typeof exports == "string") {
+          t1 = exports;
+          break $label0$0;
+        }
+        if (type$.List_String._is(exports)) {
+          t1 = exports;
+          break $label0$0;
+        }
+        t1 = type$.Map_String_dynamic._is(exports);
+        if (t1) {
+          t2 = !J.any$1$ax(exports.get$keys(exports), new A.NodePackageImporter__getMainExport_closure());
+          map = exports;
+        } else {
+          map = null;
+          t2 = false;
+        }
+        if (t2) {
+          t1 = map;
+          break $label0$0;
+        }
+        if (t1) {
+          _0_4 = exports.$index(0, ".");
+          if (_0_4 == null)
+            t2 = exports.containsKey$1(".");
+          else
+            t2 = true;
+          if (t2)
+            t2 = _0_4 != null;
+          else
+            t2 = false;
+        } else {
+          _0_4 = null;
+          t2 = false;
+        }
+        if (t2) {
+          $export = t1 ? _0_4 : J.$index$asx(exports, ".");
+          t1 = $export;
+          break $label0$0;
+        }
+        t1 = null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _exportsToCheck$2$addIndex(subpath, addIndex) {
+      var basename, dirname, t3, t4, _i, path,
+        t1 = type$.JSArray_String,
+        paths = A._setArrayType([], t1),
+        t2 = subpath == null;
+      if (t2 && addIndex)
+        subpath = "index";
+      else if (!t2 && addIndex)
+        subpath = A.join(subpath, "index", null);
+      if (subpath == null)
+        return A._setArrayType([null], type$.JSArray_nullable_String);
+      if (B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(subpath, $.$get$url().style)._splitExtension$1(1)[1]))
+        paths.push(subpath);
+      else
+        B.JSArray_methods.addAll$1(paths, A._setArrayType([subpath, subpath + ".scss", subpath + ".sass", subpath + ".css"], t1));
+      t1 = $.$get$context();
+      t2 = t1.style;
+      basename = A.ParsedPath_ParsedPath$parse(subpath, t2).get$basename();
+      dirname = t1.dirname$1(subpath);
+      if (B.JSString_methods.startsWith$1(basename, "_"))
+        return paths;
+      t1 = A.List_List$of(paths, true, type$.nullable_String);
+      for (t3 = paths.length, t4 = dirname === ".", _i = 0; _i < paths.length; paths.length === t3 || (0, A.throwConcurrentModificationError)(paths), ++_i) {
+        path = paths[_i];
+        if (t4)
+          t1.push("_" + A.ParsedPath_ParsedPath$parse(path, t2).get$basename());
+        else
+          t1.push(A.join(dirname, "_" + A.ParsedPath_ParsedPath$parse(path, t2).get$basename(), null));
+      }
+      return t1;
+    },
+    _exportsToCheck$1(subpath) {
+      return this._exportsToCheck$2$addIndex(subpath, false);
+    }
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure.prototype = {
+    call$1(key) {
+      return B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure0.prototype = {
+    call$1(key) {
+      return !B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure1.prototype = {
+    call$1(key) {
+      return '"' + key + '"';
+    },
+    $signature: 5
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure2.prototype = {
+    call$1(variant) {
+      var t1, matchKey, t2, t3, t4, t5, t6, _i, expansionKey, _0_0, t7, patternBase, patternTrailer, t8, target, _this = this, _null = null;
+      if (variant == null) {
+        t1 = _this.$this;
+        return A.NullableExtension_andThen(t1._getMainExport$1(_this.exports), new A.NodePackageImporter__nodePackageExportsResolve__closure(t1, variant, _this.packageRoot));
+      } else {
+        t1 = _this.exports;
+        if (!type$.Map_String_dynamic._is(t1) || J.every$1$ax(t1.get$keys(t1), new A.NodePackageImporter__nodePackageExportsResolve__closure0()))
+          return _null;
+      }
+      matchKey = "./" + $.$get$context().toUri$1(variant).toString$0(0);
+      if (t1.containsKey$1(matchKey) && J.$index$asx(t1, matchKey) != null && !B.JSString_methods.contains$1(matchKey, "*")) {
+        t1 = J.$index$asx(t1, matchKey);
+        if (t1 == null)
+          t1 = type$.Object._as(t1);
+        return _this.$this._packageTargetResolve$3(matchKey, t1, _this.packageRoot);
+      }
+      t2 = A._setArrayType([], type$.JSArray_String);
+      for (t3 = J.getInterceptor$z(t1), t4 = J.get$iterator$ax(t3.get$keys(t1)); t4.moveNext$0();) {
+        t5 = t4.get$current(t4);
+        if (B.JSString_methods.allMatches$1("*", t5).get$length(0) === 1)
+          t2.push(t5);
+      }
+      t4 = _this.$this;
+      B.JSArray_methods.sort$1(t2, t4.get$_compareExpansionKeys());
+      for (t5 = t2.length, t6 = matchKey.length, _i = 0; _i < t2.length; t2.length === t5 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        expansionKey = t2[_i];
+        _0_0 = expansionKey.split("*");
+        t7 = _0_0.length === 2;
+        if (t7) {
+          patternBase = _0_0[0];
+          patternTrailer = _0_0[1];
+          patternTrailer = patternTrailer;
+        } else {
+          patternTrailer = _null;
+          patternBase = patternTrailer;
+        }
+        if (!t7)
+          throw A.wrapException(A.StateError$("Pattern matching error"));
+        if (!B.JSString_methods.startsWith$1(matchKey, patternBase))
+          continue;
+        if (matchKey === patternBase)
+          continue;
+        t7 = patternTrailer.length;
+        if (t7 !== 0)
+          t8 = B.JSString_methods.endsWith$1(matchKey, patternTrailer) && t6 >= expansionKey.length;
+        else
+          t8 = true;
+        if (t8) {
+          target = t3.$index(t1, expansionKey);
+          if (target == null)
+            continue;
+          return t4._packageTargetResolve$4(variant, target, _this.packageRoot, B.JSString_methods.substring$2(matchKey, patternBase.length, t6 - t7));
+        }
+      }
+      return _null;
+    },
+    $signature: 144
+  };
+  A.NodePackageImporter__nodePackageExportsResolve__closure.prototype = {
+    call$1(mainExport) {
+      return this.$this._packageTargetResolve$3(this.variant, mainExport, this.packageRoot);
+    },
+    $signature: 145
+  };
+  A.NodePackageImporter__nodePackageExportsResolve__closure0.prototype = {
+    call$1(key) {
+      return !B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NodePackageImporter__getMainExport_closure.prototype = {
+    call$1(key) {
+      return B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.ImporterResult.prototype = {
+    get$sourceMapUrl(_) {
+      return this._sourceMapUrl;
+    }
+  };
+  A.resolveImportPath_closure.prototype = {
+    call$0() {
+      return A._exactlyOne(A._tryPath($.$get$context().withoutExtension$1(this.path) + ".import" + this.extension));
+    },
+    $signature: 44
+  };
+  A.resolveImportPath_closure0.prototype = {
+    call$0() {
+      return A._exactlyOne(A._tryPathWithExtensions(this.path + ".import"));
+    },
+    $signature: 44
+  };
+  A._tryPathAsDirectory_closure.prototype = {
+    call$0() {
+      return A._exactlyOne(A._tryPathWithExtensions(A.join(this.path, "index.import", null)));
+    },
+    $signature: 44
+  };
+  A._exactlyOne_closure.prototype = {
+    call$1(path) {
+      var t1 = $.$get$context();
+      return "  " + t1.prettyUri$1(t1.toUri$1(path));
+    },
+    $signature: 5
+  };
+  A.InterpolationBuffer.prototype = {
+    writeCharCode$1(character) {
+      var t1 = this._interpolation_buffer$_text,
+        t2 = A.Primitives_stringFromCharCode(character);
+      t1._contents += t2;
+      return null;
+    },
+    addInterpolation$1(interpolation) {
+      var _0_4_isSet, _0_4, first, rest, t2, _this = this,
+        toAdd = interpolation.contents,
+        t1 = toAdd.length;
+      if (t1 === 0)
+        return;
+      _0_4_isSet = t1 >= 1;
+      if (_0_4_isSet) {
+        _0_4 = toAdd[0];
+        t1 = _0_4;
+        t1 = typeof t1 == "string";
+      } else {
+        _0_4 = null;
+        t1 = false;
+      }
+      if (t1) {
+        first = A._asString(_0_4_isSet ? _0_4 : toAdd[0]);
+        rest = B.JSArray_methods.sublist$1(toAdd, 1);
+        t1 = _this._interpolation_buffer$_text;
+        t1._contents += first;
+        toAdd = rest;
+      }
+      _this._flushText$0();
+      t1 = _this._interpolation_buffer$_contents;
+      B.JSArray_methods.addAll$1(t1, toAdd);
+      if (typeof B.JSArray_methods.get$last(t1) == "string") {
+        t2 = _this._interpolation_buffer$_text;
+        t1 = A.S(t1.pop());
+        t2._contents += t1;
+      }
+    },
+    _flushText$0() {
+      var t1 = this._interpolation_buffer$_text,
+        t2 = t1._contents;
+      if (t2.length === 0)
+        return;
+      this._interpolation_buffer$_contents.push(t2.charCodeAt(0) == 0 ? t2 : t2);
+      t1._contents = "";
+    },
+    interpolation$1(span) {
+      var t1 = A.List_List$of(this._interpolation_buffer$_contents, true, type$.Object),
+        t2 = this._interpolation_buffer$_text._contents;
+      if (t2.length !== 0)
+        t1.push(t2.charCodeAt(0) == 0 ? t2 : t2);
+      return A.Interpolation$(t1, span);
+    },
+    toString$0(_) {
+      var t1, t2, _i, t3, element;
+      for (t1 = this._interpolation_buffer$_contents, t2 = t1.length, _i = 0, t3 = ""; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        element = t1[_i];
+        t3 = typeof element == "string" ? t3 + element : t3 + "#{" + A.S(element) + A.Primitives_stringFromCharCode(125);
+      }
+      t1 = t3 + this._interpolation_buffer$_text.toString$0(0);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A.InterpolationMap.prototype = {
+    mapException$1(error) {
+      var t3, t4, _this = this,
+        target = error.get$span(error),
+        source = _this.mapSpan$1(target),
+        startIndex = _this._indexInContents$1(target.get$start(target)),
+        endIndex = _this._indexInContents$1(target.get$end(target)),
+        t1 = _this._interpolation.contents,
+        t2 = error._span_exception$_message;
+      if (!A.SubListIterable$(t1, startIndex, null, A._arrayInstanceType(t1)._precomputed1).take$1(0, endIndex - startIndex + 1).any$1(0, new A.InterpolationMap_mapException_closure()))
+        return new A.SourceSpanFormatException(error.get$source(), t2, source);
+      else {
+        t1 = type$.SourceSpan;
+        t3 = type$.String;
+        t4 = A.LinkedHashMap_LinkedHashMap$_literal([target, "error in interpolated output"], t1, t3);
+        return new A.MultiSourceSpanFormatException(error.get$source(), "", A.ConstantMap_ConstantMap$from(t4, t1, t3), t2, source);
+      }
+    },
+    mapSpan$1(target) {
+      var _0_10, t1, _0_2_isSet, _0_20, t2, start, end, _this = this, _null = null,
+        _0_1 = _this._mapLocation$1(target.get$start(target)),
+        _0_2 = _this._mapLocation$1(target.get$end(target));
+      $label0$0: {
+        _0_10 = _0_1;
+        t1 = type$.FileSpan;
+        _0_2_isSet = t1._is(_0_1);
+        if (_0_2_isSet) {
+          t1._as(_0_10);
+          _0_20 = _0_2;
+          t2 = t1._is(_0_2);
+          start = _0_10;
+          _0_1 = start;
+        } else {
+          start = _null;
+          _0_20 = start;
+          _0_1 = _0_10;
+          t2 = false;
+        }
+        if (t2) {
+          t1 = start.expand$1(0, t1._as(_0_2_isSet ? _0_20 : _0_2));
+          break $label0$0;
+        }
+        if (t1._is(_0_1)) {
+          if (_0_2_isSet)
+            t2 = _0_20;
+          else {
+            t2 = _0_2;
+            _0_20 = t2;
+            _0_2_isSet = true;
+          }
+          t2 = t2 instanceof A.FileLocation;
+          start = _0_1;
+        } else {
+          start = _null;
+          t2 = false;
+        }
+        if (t2) {
+          t1 = _0_2_isSet ? _0_20 : _0_2;
+          type$.FileLocation._as(t1);
+          t2 = _this._interpolation.span;
+          t1 = t2.get$file(t2).span$2(0, _this._expandInterpolationSpanLeft$1(start.get$start(start)), t1.offset);
+          break $label0$0;
+        }
+        if (_0_1 instanceof A.FileLocation) {
+          if (_0_2_isSet)
+            t2 = _0_20;
+          else {
+            t2 = _0_2;
+            _0_20 = t2;
+            _0_2_isSet = true;
+          }
+          t2 = t1._is(t2);
+          start = _0_1;
+        } else {
+          start = _null;
+          t2 = false;
+        }
+        if (t2) {
+          end = t1._as(_0_2_isSet ? _0_20 : _0_2);
+          t1 = _this._interpolation.span;
+          t1 = t1.get$file(t1).span$2(0, start.offset, _this._expandInterpolationSpanRight$1(end.get$end(end)));
+          break $label0$0;
+        }
+        if (_0_1 instanceof A.FileLocation) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          t1 = t1 instanceof A.FileLocation;
+          start = _0_1;
+        } else {
+          start = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _0_2_isSet ? _0_20 : _0_2;
+          type$.FileLocation._as(t1);
+          t2 = _this._interpolation.span;
+          t1 = t2.get$file(t2).span$2(0, start.offset, t1.offset);
+          break $label0$0;
+        }
+        t1 = A.throwExpression("[BUG] Unreachable");
+      }
+      return t1;
+    },
+    _mapLocation$1(target) {
+      var t4, previousLocation, _this = this,
+        index = _this._indexInContents$1(target),
+        t1 = _this._interpolation,
+        t2 = t1.contents,
+        _0_0 = t2[index],
+        t3 = type$.Expression;
+      if (t3._is(_0_0))
+        return _0_0.get$span(_0_0);
+      t4 = index === 0;
+      t1 = t1.span;
+      if (t4)
+        previousLocation = t1.get$start(t1);
+      else {
+        t1 = t1.get$file(t1);
+        t2 = t3._as(t2[index - 1]);
+        t2 = t2.get$span(t2);
+        previousLocation = A.FileLocation$_(t1, _this._expandInterpolationSpanRight$1(t2.get$end(t2)));
+      }
+      t1 = t4 ? 0 : _this._targetLocations[index - 1].get$offset();
+      return A.FileLocation$_(previousLocation.file, previousLocation.offset + (target.offset - t1));
+    },
+    _indexInContents$1(target) {
+      var t1, t2, t3, i;
+      for (t1 = this._targetLocations, t2 = t1.length, t3 = target.offset, i = 0; i < t2; ++i)
+        if (t3 < t1[i].get$offset())
+          return i;
+      return this._interpolation.contents.length - 1;
+    },
+    _expandInterpolationSpanLeft$1(start) {
+      var i0, prev, char,
+        source = start.file._decodedChars,
+        i = start.offset - 1;
+      for (; i >= 0;) {
+        i0 = i - 1;
+        prev = source[i];
+        if (prev === 123) {
+          if (source[i0] === 35) {
+            i = i0;
+            break;
+          }
+          i = i0;
+        } else if (prev === 47) {
+          i = i0 - 1;
+          if (source[i0] === 42)
+            for (; true;) {
+              i0 = i - 1;
+              if (source[i] !== 42) {
+                i = i0;
+                continue;
+              }
+              i = i0;
+              do {
+                i0 = i - 1;
+                char = source[i];
+                if (char === 42) {
+                  i = i0;
+                  continue;
+                } else
+                  break;
+              } while (true);
+              if (char === 47) {
+                i = i0;
+                break;
+              }
+              i = i0;
+            }
+        } else
+          i = i0;
+      }
+      return i;
+    },
+    _expandInterpolationSpanRight$1(end) {
+      var t1, i0, next, second, t2, char,
+        source = end.file._decodedChars,
+        i = end.offset;
+      for (t1 = source.length; i < t1;) {
+        i0 = i + 1;
+        next = source[i];
+        if (next === 125) {
+          i = i0;
+          break;
+        }
+        if (next === 47) {
+          i = i0 + 1;
+          second = source[i0];
+          if (second === 47) {
+            while (true) {
+              i0 = i + 1;
+              t2 = source[i];
+              if (!!(t2 === 10 || t2 === 13 || t2 === 12))
+                break;
+              i = i0;
+            }
+            i = i0;
+          } else if (second === 42)
+            for (; true;) {
+              i0 = i + 1;
+              if (source[i] !== 42) {
+                i = i0;
+                continue;
+              }
+              i = i0;
+              do {
+                i0 = i + 1;
+                char = source[i];
+                if (char === 42) {
+                  i = i0;
+                  continue;
+                } else
+                  break;
+              } while (true);
+              if (char === 47) {
+                i = i0;
+                break;
+              }
+              i = i0;
+            }
+        } else
+          i = i0;
+      }
+      return i;
+    }
+  };
+  A.InterpolationMap_mapException_closure.prototype = {
+    call$1($content) {
+      return type$.Expression._is($content);
+    },
+    $signature: 67
+  };
+  A._realCasePath_helper.prototype = {
+    call$1(path) {
+      var dirname = $.$get$context().dirname$1(path);
+      if (dirname === path)
+        return path;
+      return $._realCaseCache.putIfAbsent$2(path, new A._realCasePath_helper_closure(this, dirname, path));
+    },
+    $signature: 5
+  };
+  A._realCasePath_helper_closure.prototype = {
+    call$0() {
+      var matches, t1, _0_0, match, exception,
+        realDirname = this.helper.call$1(this.dirname),
+        t2 = this.path,
+        basename = A.ParsedPath_ParsedPath$parse(t2, $.$get$context().style).get$basename();
+      try {
+        matches = J.where$1$ax(A.listDir(realDirname, false), new A._realCasePath_helper__closure(basename)).toList$0(0);
+        t1 = null;
+        _0_0 = matches;
+        $label0$0: {
+          match = null;
+          if (J.get$length$asx(_0_0) === 1) {
+            match = J.$index$asx(_0_0, 0);
+            t1 = match;
+            break $label0$0;
+          }
+          t1 = A.join(realDirname, basename, null);
+          break $label0$0;
+        }
+        t1 = t1;
+        return t1;
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.FileSystemException)
+          return t2;
+        else
+          throw exception;
+      }
+    },
+    $signature: 25
+  };
+  A._realCasePath_helper__closure.prototype = {
+    call$1(realPath) {
+      return A.equalsIgnoreCase(A.ParsedPath_ParsedPath$parse(realPath, $.$get$context().style).get$basename(), this.basename);
+    },
+    $signature: 4
+  };
+  A.FileSystemException.prototype = {
+    toString$0(_) {
+      var t1 = $.$get$context();
+      return t1.prettyUri$1(t1.toUri$1(this.path)) + ": " + this.message;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A._readFile_closure.prototype = {
+    call$0() {
+      return J.readFileSync$2$x(A.fs(), this.path, this.encoding);
+    },
+    $signature: 62
+  };
+  A.writeFile_closure.prototype = {
+    call$0() {
+      return J.writeFileSync$2$x(A.fs(), this.path, this.contents);
+    },
+    $signature: 0
+  };
+  A.deleteFile_closure.prototype = {
+    call$0() {
+      return J.unlinkSync$1$x(A.fs(), this.path);
+    },
+    $signature: 0
+  };
+  A.readStdin_closure.prototype = {
+    call$1(result) {
+      this._box_0.contents = result;
+      this.completer.complete$1(result);
+    },
+    $signature: 92
+  };
+  A.readStdin_closure0.prototype = {
+    call$1(chunk) {
+      this.sink.add$1(0, type$.List_int._as(chunk));
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    "call*": "call$1",
+    $requiredArgCount: 0,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 104
+  };
+  A.readStdin_closure1.prototype = {
+    call$1(_) {
+      this.sink.close$0(0);
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    "call*": "call$1",
+    $requiredArgCount: 0,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 104
+  };
+  A.readStdin_closure2.prototype = {
+    call$1(e) {
+      A.printError("Failed to read from stdin");
+      A.printError(e);
+      e.toString;
+      this.completer.completeError$1(e);
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    "call*": "call$1",
+    $requiredArgCount: 0,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 104
+  };
+  A.fileExists_closure.prototype = {
+    call$0() {
+      var error, systemError, exception,
+        t1 = this.path;
+      if (!J.existsSync$1$x(A.fs(), t1))
+        return false;
+      try {
+        t1 = J.isFile$0$x(J.statSync$1$x(A.fs(), t1));
+        return t1;
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        systemError = type$.JsSystemError._as(error);
+        if (J.$eq$(J.get$code$x(systemError), "ENOENT"))
+          return false;
+        throw exception;
+      }
+    },
+    $signature: 30
+  };
+  A.dirExists_closure.prototype = {
+    call$0() {
+      var error, systemError, exception,
+        t1 = this.path;
+      if (!J.existsSync$1$x(A.fs(), t1))
+        return false;
+      try {
+        t1 = J.isDirectory$0$x(J.statSync$1$x(A.fs(), t1));
+        return t1;
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        systemError = type$.JsSystemError._as(error);
+        if (J.$eq$(J.get$code$x(systemError), "ENOENT"))
+          return false;
+        throw exception;
+      }
+    },
+    $signature: 30
+  };
+  A.ensureDir_closure.prototype = {
+    call$0() {
+      var error, systemError, exception, t1;
+      try {
+        J.mkdirSync$1$x(A.fs(), this.path);
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        systemError = type$.JsSystemError._as(error);
+        if (J.$eq$(J.get$code$x(systemError), "EEXIST"))
+          return;
+        if (!J.$eq$(J.get$code$x(systemError), "ENOENT"))
+          throw exception;
+        t1 = this.path;
+        A.ensureDir($.$get$context().dirname$1(t1));
+        J.mkdirSync$1$x(A.fs(), t1);
+      }
+    },
+    $signature: 0
+  };
+  A.listDir_closure.prototype = {
+    call$0() {
+      var t1 = this.path;
+      if (!this.recursive)
+        return J.map$1$1$ax(J.readdirSync$1$x(A.fs(), t1), new A.listDir__closure(t1), type$.String).super$Iterable$where(0, new A.listDir__closure0());
+      else
+        return new A.listDir_closure_list().call$1(t1);
+    },
+    $signature: 146
+  };
+  A.listDir__closure.prototype = {
+    call$1(child) {
+      return A.join(this.path, A._asString(child), null);
+    },
+    $signature: 125
+  };
+  A.listDir__closure0.prototype = {
+    call$1(child) {
+      return !A.dirExists(child);
+    },
+    $signature: 4
+  };
+  A.listDir_closure_list.prototype = {
+    call$1($parent) {
+      return J.expand$1$1$ax(J.readdirSync$1$x(A.fs(), $parent), new A.listDir__list_closure($parent, this), type$.String);
+    },
+    $signature: 147
+  };
+  A.listDir__list_closure.prototype = {
+    call$1(child) {
+      var path = A.join(this.parent, A._asString(child), null);
+      return A.dirExists(path) ? this.list.call$1(path) : A._setArrayType([path], type$.JSArray_String);
+    },
+    $signature: 148
+  };
+  A.modificationTime_closure.prototype = {
+    call$0() {
+      var t1 = J.getTime$0$x(J.get$mtime$x(J.statSync$1$x(A.fs(), this.path)));
+      if (Math.abs(t1) > 864e13)
+        A.throwExpression(A.ArgumentError$("DateTime is outside valid range: " + A.S(t1), null));
+      A.checkNotNullable(false, "isUtc", type$.bool);
+      return new A.DateTime(t1, false);
+    },
+    $signature: 149
+  };
+  A.watchDir_closure.prototype = {
+    call$2(path, _) {
+      var t1 = this._box_0.controller;
+      return t1 == null ? null : t1.add$1(0, new A.WatchEvent(B.ChangeType_add, path));
+    },
+    call$1(path) {
+      return this.call$2(path, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 150
+  };
+  A.watchDir_closure0.prototype = {
+    call$2(path, _) {
+      var t1 = this._box_0.controller;
+      return t1 == null ? null : t1.add$1(0, new A.WatchEvent(B.ChangeType_modify, path));
+    },
+    call$1(path) {
+      return this.call$2(path, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 150
+  };
+  A.watchDir_closure1.prototype = {
+    call$1(path) {
+      var t1 = this._box_0.controller;
+      return t1 == null ? null : t1.add$1(0, new A.WatchEvent(B.ChangeType_remove, path));
+    },
+    $signature: 92
+  };
+  A.watchDir_closure2.prototype = {
+    call$1(error) {
+      var t1 = this._box_0.controller;
+      return t1 == null ? null : t1.addError$1(error);
+    },
+    $signature: 82
+  };
+  A.watchDir_closure3.prototype = {
+    call$0() {
+      var controller = A.StreamController_StreamController(new A.watchDir__closure(this.watcher), null, null, null, false, type$.WatchEvent);
+      this._box_0.controller = controller;
+      this.completer.complete$1(new A._ControllerStream(controller, A._instanceType(controller)._eval$1("_ControllerStream<1>")));
+    },
+    $signature: 1
+  };
+  A.watchDir__closure.prototype = {
+    call$0() {
+      J.close$0$x(this.watcher);
+    },
+    $signature: 1
+  };
+  A.JSArray0.prototype = {};
+  A.Chokidar.prototype = {};
+  A.ChokidarOptions.prototype = {};
+  A.ChokidarWatcher.prototype = {};
+  A.JSFunction.prototype = {};
+  A.ImmutableList.prototype = {};
+  A.ImmutableMap.prototype = {};
+  A.NodeImporterResult.prototype = {};
+  A.RenderContext.prototype = {};
+  A.RenderContextOptions.prototype = {};
+  A.RenderContextResult.prototype = {};
+  A.RenderContextResultStats.prototype = {};
+  A.JSModule.prototype = {};
+  A.JSModuleRequire.prototype = {};
+  A.JSClass.prototype = {};
+  A.JSUrl.prototype = {};
+  A._PropertyDescriptor.prototype = {};
+  A._RequireMain.prototype = {};
+  A.LoggerWithDeprecationType0.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+      this.internalWarn$4$deprecation$span$trace(message, deprecation ? B.Deprecation_JeE : null, span, trace);
+    },
+    warn$3$span$trace(_, message, span, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, trace);
+    },
+    warn$2$span(_, message, span) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, null);
+    },
+    warn$2$trace(_, message, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, trace);
+    }
+  };
+  A._QuietLogger.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+    },
+    warn$1(_, message) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, null);
+    },
+    warn$3$span$trace(_, message, span, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, trace);
+    },
+    warn$2$span(_, message, span) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, null);
+    },
+    debug$2(_, message, span) {
+    }
+  };
+  A.DeprecationProcessingLogger.prototype = {
+    DeprecationProcessingLogger$5$fatalDeprecations$futureDeprecations$limitRepetition$silenceDeprecations(_inner, fatalDeprecations, futureDeprecations, limitRepetition, silenceDeprecations) {
+      var t1, t2, t3, t4, t5, t6, _1_7, _this = this, _null = null;
+      for (t1 = _this.fatalDeprecations, t1 = t1.get$iterator(t1), t2 = _this.silenceDeprecations, t3 = _this.futureDeprecations, t4 = _this._inner; t1.moveNext$0();) {
+        t5 = t1.get$current(t1);
+        if (t5.isFuture && !t3.contains$1(0, t5)) {
+          t5 = t5.toString$0(0);
+          t4.warn$3$span$trace(0, "Future " + t5 + string$.x20deprex20m, _null, _null);
+          continue;
+        }
+        t6 = t2.contains$1(0, t5);
+        if (t6) {
+          t5 = t5.toString$0(0);
+          t4.warn$3$span$trace(0, "Ignoring setting to silence " + t5 + string$.x20deprex2c, _null, _null);
+          continue;
+        }
+      }
+      for (t1 = A._LinkedHashSetIterator$(t2, t2._modifications, A._instanceType(t2)._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t5 = t1._collection$_current;
+        if (t5 == null)
+          t5 = t2._as(t5);
+        if (B.Deprecation_JeE === t5) {
+          t4.warn$3$span$trace(0, string$.User_a, _null, _null);
+          continue;
+        }
+        _1_7 = t5.isFuture;
+        if (_1_7 && t3.contains$1(0, t5)) {
+          t5 = t5.toString$0(0);
+          t4.warn$3$span$trace(0, "Conflicting options for future " + t5 + " deprecation cancel each other out.", _null, _null);
+          continue;
+        }
+        if (_1_7) {
+          t5 = t5.toString$0(0);
+          t4.warn$3$span$trace(0, "Future " + t5 + string$.x20deprex20i, _null, _null);
+          continue;
+        }
+      }
+      for (t1 = A._LinkedHashSetIterator$(t3, t3._modifications, A._instanceType(t3)._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (!t3.isFuture) {
+          t3 = t3.toString$0(0);
+          t4.warn$3$span$trace(0, t3 + string$.x20is_noaf, _null, _null);
+        }
+      }
+    },
+    internalWarn$4$deprecation$span$trace(message, deprecation, span, trace) {
+      if (deprecation != null)
+        this._handleDeprecation$4$span$trace(deprecation, message, span, trace);
+      else
+        this._inner.warn$3$span$trace(0, message, span, trace);
+    },
+    _handleDeprecation$4$span$trace(deprecation, message, span, trace) {
+      var _0_3_isSet, span0, t1, _0_3, t2, count, _this = this, _null = null;
+      if (deprecation.isFuture && !_this.futureDeprecations.contains$1(0, deprecation))
+        return;
+      if (_this.fatalDeprecations.contains$1(0, deprecation)) {
+        message += string$.x0a_This + deprecation.toString$0(0) + string$.x20deprex20t;
+        $label0$0: {
+          _0_3_isSet = span != null;
+          if (_0_3_isSet) {
+            span0 = span == null ? type$.FileSpan._as(span) : span;
+            t1 = trace != null;
+            _0_3 = trace;
+          } else {
+            span0 = _null;
+            _0_3 = span0;
+            t1 = false;
+          }
+          if (t1) {
+            if (_0_3_isSet)
+              trace = _0_3;
+            t1 = A.SassRuntimeException$(message, span0, trace == null ? type$.Trace._as(trace) : trace, _null);
+            break $label0$0;
+          }
+          if (span != null)
+            t1 = (_0_3_isSet ? _0_3 : trace) == null;
+          else {
+            span = _null;
+            t1 = false;
+          }
+          if (t1) {
+            t1 = A.SassException$(message, span, _null);
+            break $label0$0;
+          }
+          t1 = A.SassScriptException$(message, _null);
+          break $label0$0;
+        }
+        throw A.wrapException(t1);
+      }
+      if (_this.silenceDeprecations.contains$1(0, deprecation))
+        return;
+      if (_this.limitRepetition) {
+        t1 = _this._warningCounts;
+        t2 = t1.$index(0, deprecation);
+        count = (t2 == null ? 0 : t2) + 1;
+        t1.$indexSet(0, deprecation, count);
+        if (count > 5)
+          return;
+      }
+      _this._inner.warn$4$deprecation$span$trace(0, message, true, span, trace);
+    },
+    debug$2(_, message, span) {
+      return this._inner.debug$2(0, message, span);
+    },
+    summarize$1$js(js) {
+      var t1 = this._warningCounts.get$values(0),
+        t2 = A._instanceType(t1),
+        total = A.IterableIntegerExtension_get_sum(new A.MappedIterable(new A.WhereIterable(t1, new A.DeprecationProcessingLogger_summarize_closure(), t2._eval$1("WhereIterable<Iterable.E>")), new A.DeprecationProcessingLogger_summarize_closure0(), t2._eval$1("MappedIterable<Iterable.E,int>")));
+      if (total > 0) {
+        t1 = js ? "" : string$.x0aRun_i;
+        this._inner.warn$1(0, "" + total + string$.x20repet + t1);
+      }
+    }
+  };
+  A.DeprecationProcessingLogger_summarize_closure.prototype = {
+    call$1(count) {
+      return count > 5;
+    },
+    $signature: 45
+  };
+  A.DeprecationProcessingLogger_summarize_closure0.prototype = {
+    call$1(count) {
+      return count - 5;
+    },
+    $signature: 151
+  };
+  A.StderrLogger.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+      var t2,
+        result = new A.StringBuffer(""),
+        t1 = this.color;
+      if (t1) {
+        t2 = result._contents = "" + "\x1b[33m\x1b[1m";
+        t2 = result._contents = (deprecation ? result._contents = t2 + "Deprecation " : t2) + "Warning\x1b[0m";
+      } else
+        t2 = result._contents = (deprecation ? result._contents = "" + "DEPRECATION " : "") + "WARNING";
+      if (span == null)
+        t1 = result._contents = t2 + (": " + message + "\n");
+      else if (trace != null) {
+        t1 = t2 + (": " + message + "\n\n" + span.highlight$1$color(t1) + "\n");
+        result._contents = t1;
+      } else {
+        t1 = t2 + (" on " + span.message$2$color(0, "\n" + message, t1) + "\n");
+        result._contents = t1;
+      }
+      if (trace != null)
+        result._contents = t1 + (A.indent(B.JSString_methods.trimRight$0(trace.toString$0(0)), 4) + "\n");
+      A.printError(result);
+    },
+    warn$1(_, message) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, null);
+    },
+    warn$3$span$trace(_, message, span, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, trace);
+    },
+    warn$2$span(_, message, span) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, null);
+    },
+    warn$2$trace(_, message, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, trace);
+    },
+    debug$2(_, message, span) {
+      var url, t3, t4,
+        t1 = span.file,
+        t2 = span._file$_start;
+      if (A.FileLocation$_(t1, t2).file.url == null)
+        url = "-";
+      else {
+        t3 = A.FileLocation$_(t1, t2).file.url;
+        t4 = $.$get$context();
+        t3.toString;
+        url = t4.prettyUri$1(t3);
+      }
+      t1 = A.FileLocation$_(t1, t2);
+      t1 = t1.file.getLine$1(t1.offset);
+      t2 = this.color ? "\x1b[1mDebug\x1b[0m" : "DEBUG";
+      t2 = "" + (url + ":" + (t1 + 1) + " ") + t2 + (": " + message);
+      A.printError(t2.charCodeAt(0) == 0 ? t2 : t2);
+    }
+  };
+  A.TrackingLogger.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+      this._emittedWarning = true;
+      this._tracking$_logger.warn$4$deprecation$span$trace(0, message, deprecation, span, trace);
+    },
+    warn$1(_, message) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, null);
+    },
+    warn$3$span$trace(_, message, span, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, trace);
+    },
+    debug$2(_, message, span) {
+      this._emittedDebug = true;
+      this._tracking$_logger.debug$2(0, message, span);
+    }
+  };
+  A.BuiltInModule.prototype = {
+    get$upstream() {
+      return B.List_empty7;
+    },
+    get$variableNodes() {
+      return B.Map_empty4;
+    },
+    get$extensionStore() {
+      return B.C_EmptyExtensionStore;
+    },
+    get$css(_) {
+      return new A.CssStylesheet(B.List_empty3, A.SourceFile$decoded(B.List_empty4, this.url).span$2(0, 0, 0));
+    },
+    get$preModuleComments() {
+      return B.Map_empty2;
+    },
+    get$transitivelyContainsCss() {
+      return false;
+    },
+    get$transitivelyContainsExtensions() {
+      return false;
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      if (!this.variables.containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$("Undefined variable.", null));
+      throw A.wrapException(A.SassScriptException$("Cannot modify built-in variable.", null));
+    },
+    variableIdentity$1($name) {
+      return this;
+    },
+    cloneCss$0() {
+      return this;
+    },
+    $isModule0: 1,
+    get$url(receiver) {
+      return this.url;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    },
+    get$variables() {
+      return this.variables;
+    }
+  };
+  A.ForwardedModuleView.prototype = {
+    get$url(_) {
+      var t1 = this._forwarded_view$_inner;
+      return t1.get$url(t1);
+    },
+    get$upstream() {
+      return this._forwarded_view$_inner.get$upstream();
+    },
+    get$extensionStore() {
+      return this._forwarded_view$_inner.get$extensionStore();
+    },
+    get$css(_) {
+      var t1 = this._forwarded_view$_inner;
+      return t1.get$css(t1);
+    },
+    get$preModuleComments() {
+      return this._forwarded_view$_inner.get$preModuleComments();
+    },
+    get$transitivelyContainsCss() {
+      return this._forwarded_view$_inner.get$transitivelyContainsCss();
+    },
+    get$transitivelyContainsExtensions() {
+      return this._forwarded_view$_inner.get$transitivelyContainsExtensions();
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      var t2, _1_0, _2_0,
+        _s19_ = "Undefined variable.",
+        t1 = this._rule,
+        _0_0 = t1.shownVariables;
+      if (_0_0 != null)
+        t2 = !_0_0._base.contains$1(0, $name);
+      else
+        t2 = false;
+      if (t2)
+        throw A.wrapException(A.SassScriptException$(_s19_, null));
+      else {
+        _1_0 = t1.hiddenVariables;
+        if (_1_0 != null)
+          t2 = _1_0._base.contains$1(0, $name);
+        else
+          t2 = false;
+        if (t2)
+          throw A.wrapException(A.SassScriptException$(_s19_, null));
+      }
+      _2_0 = t1.prefix;
+      if (_2_0 != null) {
+        if (!B.JSString_methods.startsWith$1($name, _2_0))
+          throw A.wrapException(A.SassScriptException$(_s19_, null));
+        $name = B.JSString_methods.substring$1($name, _2_0.length);
+      }
+      return this._forwarded_view$_inner.setVariable$3($name, value, nodeWithSpan);
+    },
+    variableIdentity$1($name) {
+      var _0_0 = this._rule.prefix;
+      if (_0_0 != null)
+        $name = B.JSString_methods.substring$1($name, _0_0.length);
+      return this._forwarded_view$_inner.variableIdentity$1($name);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ForwardedModuleView && this._forwarded_view$_inner.$eq(0, other._forwarded_view$_inner) && this._rule === other._rule;
+    },
+    get$hashCode(_) {
+      var t1 = this._forwarded_view$_inner;
+      return (t1.get$hashCode(t1) ^ A.Primitives_objectHashCode(this._rule)) >>> 0;
+    },
+    cloneCss$0() {
+      return A.ForwardedModuleView$(this._forwarded_view$_inner.cloneCss$0(), this._rule, this.$ti._precomputed1);
+    },
+    toString$0(_) {
+      return "forwarded " + this._forwarded_view$_inner.toString$0(0);
+    },
+    $isModule0: 1,
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    }
+  };
+  A.ShadowedModuleView.prototype = {
+    get$url(_) {
+      var t1 = this._shadowed_view$_inner;
+      return t1.get$url(t1);
+    },
+    get$upstream() {
+      return this._shadowed_view$_inner.get$upstream();
+    },
+    get$extensionStore() {
+      return this._shadowed_view$_inner.get$extensionStore();
+    },
+    get$css(_) {
+      var t1 = this._shadowed_view$_inner;
+      return t1.get$css(t1);
+    },
+    get$preModuleComments() {
+      return this._shadowed_view$_inner.get$preModuleComments();
+    },
+    get$transitivelyContainsCss() {
+      return this._shadowed_view$_inner.get$transitivelyContainsCss();
+    },
+    get$transitivelyContainsExtensions() {
+      return this._shadowed_view$_inner.get$transitivelyContainsExtensions();
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      if (!this.variables.containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$("Undefined variable.", null));
+      else
+        this._shadowed_view$_inner.setVariable$3($name, value, nodeWithSpan);
+    },
+    variableIdentity$1($name) {
+      return this._shadowed_view$_inner.variableIdentity$1($name);
+    },
+    $eq(_, other) {
+      var t1, t2, _this = this;
+      if (other == null)
+        return false;
+      if (other instanceof A.ShadowedModuleView)
+        if (_this._shadowed_view$_inner.$eq(0, other._shadowed_view$_inner)) {
+          t1 = _this.variables;
+          t1 = t1.get$keys(t1);
+          t2 = other.variables;
+          if (B.C_IterableEquality.equals$2(0, t1, t2.get$keys(t2))) {
+            t1 = _this.functions;
+            t1 = t1.get$keys(t1);
+            t2 = other.functions;
+            if (B.C_IterableEquality.equals$2(0, t1, t2.get$keys(t2))) {
+              t1 = _this.mixins;
+              t1 = t1.get$keys(t1);
+              t2 = other.mixins;
+              t2 = B.C_IterableEquality.equals$2(0, t1, t2.get$keys(t2));
+              t1 = t2;
+            } else
+              t1 = false;
+          } else
+            t1 = false;
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    get$hashCode(_) {
+      var t1 = this._shadowed_view$_inner;
+      return t1.get$hashCode(t1);
+    },
+    cloneCss$0() {
+      var _this = this;
+      return new A.ShadowedModuleView(_this._shadowed_view$_inner.cloneCss$0(), _this.variables, _this.variableNodes, _this.functions, _this.mixins, _this.$ti);
+    },
+    toString$0(_) {
+      return "shadowed " + this._shadowed_view$_inner.toString$0(0);
+    },
+    $isModule0: 1,
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    }
+  };
+  A.AtRootQueryParser.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.AtRootQueryParser_parse_closure(this));
+    }
+  };
+  A.AtRootQueryParser_parse_closure.prototype = {
+    call$0() {
+      var include, atRules,
+        t1 = this.$this,
+        t2 = t1.scanner;
+      t2.expectChar$1(40);
+      t1.whitespace$0();
+      include = t1.scanIdentifier$1("with");
+      if (!include)
+        t1.expectIdentifier$2$name("without", '"with" or "without"');
+      t1.whitespace$0();
+      t2.expectChar$1(58);
+      t1.whitespace$0();
+      atRules = A.LinkedHashSet_LinkedHashSet$_empty(type$.String);
+      do {
+        atRules.add$1(0, t1.identifier$0().toLowerCase());
+        t1.whitespace$0();
+      } while (t1.lookingAtIdentifier$0());
+      t2.expectChar$1(41);
+      t2.expectDone$0();
+      return new A.AtRootQuery(include, atRules, atRules.contains$1(0, "all"), atRules.contains$1(0, "rule"));
+    },
+    $signature: 515
+  };
+  A._disallowedFunctionNames_closure.prototype = {
+    call$1($function) {
+      return $function.name;
+    },
+    $signature: 514
+  };
+  A.CssParser.prototype = {
+    get$plainCss() {
+      return true;
+    },
+    silentComment$0() {
+      var t1, t2, _this = this;
+      if (_this._inExpression)
+        return false;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      _this.super$Parser$silentComment();
+      _this.error$2(0, string$.Silent, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    atRule$2$root(child, root) {
+      var $name, _0_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(64);
+      $name = _this.interpolatedIdentifier$0();
+      _this.whitespace$0();
+      _0_0 = $name.get$asPlain();
+      $label0$0: {
+        if ("at-root" === _0_0 || "content" === _0_0 || "debug" === _0_0 || "each" === _0_0 || "error" === _0_0 || "extend" === _0_0 || "for" === _0_0 || "function" === _0_0 || "if" === _0_0 || "include" === _0_0 || "mixin" === _0_0 || "return" === _0_0 || "warn" === _0_0 || "while" === _0_0)
+          _this._forbiddenAtRoot$1(start);
+        if ("import" === _0_0) {
+          t1 = _this._cssImportRule$1(start);
+          break $label0$0;
+        }
+        if ("media" === _0_0) {
+          t1 = _this.mediaRule$1(start);
+          break $label0$0;
+        }
+        if ("-moz-document" === _0_0) {
+          t1 = _this.mozDocumentRule$2(start, $name);
+          break $label0$0;
+        }
+        if ("supports" === _0_0) {
+          t1 = _this.supportsRule$1(start);
+          break $label0$0;
+        }
+        t1 = _this.unknownAtRule$2(start, $name);
+        break $label0$0;
+      }
+      return t1;
+    },
+    _forbiddenAtRoot$1(start) {
+      this.almostAnyValue$0();
+      this.error$2(0, "This at-rule isn't allowed in plain CSS.", this.scanner.spanFrom$1(start));
+    },
+    _cssImportRule$1(start) {
+      var t2, urlSpan, modifiers, _this = this,
+        t1 = _this.scanner,
+        urlStart = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (117 === _0_0 || 85 === _0_0) {
+          t2 = _this.dynamicUrl$0();
+          break $label0$0;
+        }
+        t2 = new A.StringExpression(_this.interpolatedString$0().asInterpolation$1$static(true), false);
+        break $label0$0;
+      }
+      urlSpan = t1.spanFrom$1(urlStart);
+      _this.whitespace$0();
+      modifiers = _this.tryImportModifiers$0();
+      _this.expectStatementSeparator$1("@import rule");
+      t2 = A._setArrayType([new A.StaticImport(A.Interpolation$(A._setArrayType([t2], type$.JSArray_Object), urlSpan), modifiers, t1.spanFrom$1(urlStart))], type$.JSArray_Import);
+      t1 = t1.spanFrom$1(start);
+      return new A.ImportRule(A.List_List$unmodifiable(t2, type$.Import), t1);
+    },
+    parentheses$0() {
+      var expression,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expectChar$1(40);
+      this.whitespace$0();
+      expression = this.expressionUntilComma$0();
+      t1.expectChar$1(41);
+      return new A.ParenthesizedExpression(expression, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    identifierLike$0() {
+      var t2, allowEmptySecondArg, $arguments, t3, t4, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        identifier = _this.interpolatedIdentifier$0(),
+        plain = identifier.get$asPlain(),
+        lower = plain.toLowerCase(),
+        _0_0 = _this.trySpecialFunction$2(lower, start);
+      if (_0_0 != null)
+        return _0_0;
+      t2 = t1._string_scanner$_position;
+      if (t1.scanChar$1(46))
+        return _this.namespacedExpression$2(plain, start);
+      if (!t1.scanChar$1(40))
+        return new A.StringExpression(identifier, false);
+      allowEmptySecondArg = lower === "var";
+      $arguments = A._setArrayType([], type$.JSArray_Expression);
+      if (!t1.scanChar$1(41)) {
+        do {
+          _this.whitespace$0();
+          if (allowEmptySecondArg && $arguments.length === 1 && t1.peekChar$0() === 41) {
+            t3 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+            t4 = t3.offset;
+            t4 = A._FileSpan$(t3.file, t4, t4);
+            $arguments.push(new A.StringExpression(A.Interpolation$(A._setArrayType([""], type$.JSArray_Object), t4), false));
+            break;
+          }
+          $arguments.push(_this.expressionUntilComma$1$singleEquals(true));
+          _this.whitespace$0();
+        } while (t1.scanChar$1(44));
+        t1.expectChar$1(41);
+      }
+      if ($.$get$_disallowedFunctionNames().contains$1(0, plain))
+        _this.error$2(0, string$.This_f, t1.spanFrom$1(start));
+      t2 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      t3 = type$.Expression;
+      t4 = A.List_List$unmodifiable($arguments, t3);
+      t3 = A.ConstantMap_ConstantMap$from(B.Map_empty6, type$.String, t3);
+      t1 = t1.spanFrom$1(start);
+      return new A.FunctionExpression(null, A.stringReplaceAllUnchecked(plain, "_", "-"), plain, new A.ArgumentInvocation(t4, t3, null, null, t2), t1);
+    },
+    namespacedExpression$2(namespace, start) {
+      var expression = this.super$StylesheetParser$namespacedExpression(namespace, start);
+      this.error$2(0, string$.Modulen, expression.get$span(expression));
+    }
+  };
+  A.KeyframeSelectorParser.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.KeyframeSelectorParser_parse_closure(this));
+    },
+    _percentage$0() {
+      var $self, _0_0,
+        t1 = this.scanner,
+        t2 = t1.scanChar$1(43) ? "" + A.Primitives_stringFromCharCode(43) : "",
+        second = t1.peekChar$0();
+      if (!(second != null && second >= 48 && second <= 57) && second !== 46)
+        t1.error$1(0, "Expected number.");
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+      }
+      if (t1.peekChar$0() === 46) {
+        t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        while (true) {
+          $self = t1.peekChar$0();
+          if (!($self != null && $self >= 48 && $self <= 57))
+            break;
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        }
+      }
+      if (this.scanIdentChar$1(101)) {
+        t2 += A.Primitives_stringFromCharCode(101);
+        _0_0 = t1.peekChar$0();
+        if (43 === _0_0 || 45 === _0_0)
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          t1.error$1(0, "Expected digit.");
+        do {
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+          $self = t1.peekChar$0();
+        } while ($self != null && $self >= 48 && $self <= 57);
+      }
+      t1.expectChar$1(37);
+      t2 += A.Primitives_stringFromCharCode(37);
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    }
+  };
+  A.KeyframeSelectorParser_parse_closure.prototype = {
+    call$0() {
+      var selectors = A._setArrayType([], type$.JSArray_String),
+        t1 = this.$this,
+        t2 = t1.scanner;
+      do {
+        t1.whitespace$0();
+        if (t1.lookingAtIdentifier$0())
+          if (t1.scanIdentifier$1("from"))
+            selectors.push("from");
+          else {
+            t1.expectIdentifier$2$name("to", '"to" or "from"');
+            selectors.push("to");
+          }
+        else
+          selectors.push(t1._percentage$0());
+        t1.whitespace$0();
+      } while (t2.scanChar$1(44));
+      t2.expectDone$0();
+      return selectors;
+    },
+    $signature: 126
+  };
+  A.MediaQueryParser.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.MediaQueryParser_parse_closure(this));
+    },
+    _mediaQuery$0() {
+      var conditions, conjunction, t1, identifier1, identifier2, type, modifier, _this = this, _s3_ = "and", _null = null;
+      if (_this.scanner.peekChar$0() === 40) {
+        conditions = A._setArrayType([_this._mediaInParens$0()], type$.JSArray_String);
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1(_s3_)) {
+          _this.expectWhitespace$0();
+          B.JSArray_methods.addAll$1(conditions, _this._mediaLogicSequence$1(_s3_));
+          conjunction = true;
+        } else {
+          t1 = _this.scanIdentifier$1("or");
+          if (t1) {
+            _this.expectWhitespace$0();
+            B.JSArray_methods.addAll$1(conditions, _this._mediaLogicSequence$1("or"));
+          }
+          conjunction = !t1;
+        }
+        return A.CssMediaQuery$condition(conditions, conjunction);
+      }
+      identifier1 = _this.identifier$0();
+      if (A.equalsIgnoreCase(identifier1, "not")) {
+        _this.expectWhitespace$0();
+        if (!_this.lookingAtIdentifier$0())
+          return A.CssMediaQuery$condition(A._setArrayType(["(not " + _this._mediaInParens$0() + ")"], type$.JSArray_String), _null);
+      }
+      _this.whitespace$0();
+      if (!_this.lookingAtIdentifier$0())
+        return A.CssMediaQuery$type(identifier1, _null, _null);
+      identifier2 = _this.identifier$0();
+      if (A.equalsIgnoreCase(identifier2, _s3_)) {
+        _this.expectWhitespace$0();
+        type = identifier1;
+        modifier = _null;
+      } else {
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1(_s3_))
+          _this.expectWhitespace$0();
+        else
+          return A.CssMediaQuery$type(identifier2, _null, identifier1);
+        type = identifier2;
+        modifier = identifier1;
+      }
+      if (_this.scanIdentifier$1("not")) {
+        _this.expectWhitespace$0();
+        return A.CssMediaQuery$type(type, A._setArrayType(["(not " + _this._mediaInParens$0() + ")"], type$.JSArray_String), modifier);
+      }
+      return A.CssMediaQuery$type(type, _this._mediaLogicSequence$1(_s3_), modifier);
+    },
+    _mediaLogicSequence$1(operator) {
+      var t1, t2, _this = this,
+        result = A._setArrayType([], type$.JSArray_String);
+      for (t1 = _this.scanner; true;) {
+        t1.expectChar$2$name(40, "media condition in parentheses");
+        t2 = _this.declarationValue$0();
+        t1.expectChar$1(41);
+        result.push("(" + t2 + ")");
+        _this.whitespace$0();
+        if (!_this.scanIdentifier$1(operator))
+          return result;
+        _this.expectWhitespace$0();
+      }
+    },
+    _mediaInParens$0() {
+      var t2,
+        t1 = this.scanner;
+      t1.expectChar$2$name(40, "media condition in parentheses");
+      t2 = this.declarationValue$0();
+      t1.expectChar$1(41);
+      return "(" + t2 + ")";
+    }
+  };
+  A.MediaQueryParser_parse_closure.prototype = {
+    call$0() {
+      var queries = A._setArrayType([], type$.JSArray_CssMediaQuery),
+        t1 = this.$this,
+        t2 = t1.scanner;
+      do {
+        t1.whitespace$0();
+        queries.push(t1._mediaQuery$0());
+        t1.whitespace$0();
+      } while (t2.scanChar$1(44));
+      t2.expectDone$0();
+      return queries;
+    },
+    $signature: 509
+  };
+  A.Parser.prototype = {
+    _parseIdentifier$0() {
+      return this.wrapSpanFormatException$1(new A.Parser__parseIdentifier_closure(this));
+    },
+    _isVariableDeclarationLike$0() {
+      var _this = this,
+        t1 = _this.scanner;
+      if (!t1.scanChar$1(36))
+        return false;
+      if (!_this.lookingAtIdentifier$0())
+        return false;
+      _this.identifier$0();
+      _this.whitespace$0();
+      return t1.scanChar$1(58);
+    },
+    whitespace$0() {
+      do
+        this.whitespaceWithoutComments$0();
+      while (this.scanComment$0());
+    },
+    whitespaceWithoutComments$0() {
+      var t3,
+        t1 = this.scanner,
+        t2 = t1.string.length;
+      while (true) {
+        if (t1._string_scanner$_position !== t2) {
+          t3 = t1.peekChar$0();
+          t3 = t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        t1.readChar$0();
+      }
+    },
+    spaces$0() {
+      var t3,
+        t1 = this.scanner,
+        t2 = t1.string.length;
+      while (true) {
+        if (t1._string_scanner$_position !== t2) {
+          t3 = t1.peekChar$0();
+          t3 = t3 === 32 || t3 === 9;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        t1.readChar$0();
+      }
+    },
+    scanComment$0() {
+      var _0_0,
+        t1 = this.scanner;
+      if (t1.peekChar$0() !== 47)
+        return false;
+      _0_0 = t1.peekChar$1(1);
+      if (47 === _0_0)
+        return this.silentComment$0();
+      if (42 === _0_0) {
+        this.loudComment$0();
+        return true;
+      }
+      return false;
+    },
+    expectWhitespace$0() {
+      var t2, t3,
+        t1 = this.scanner;
+      if (t1._string_scanner$_position !== t1.string.length) {
+        t2 = t1.peekChar$0();
+        t3 = !(t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12 || this.scanComment$0());
+        t2 = t3;
+      } else
+        t2 = true;
+      if (t2)
+        t1.error$1(0, "Expected whitespace.");
+      this.whitespace$0();
+    },
+    silentComment$0() {
+      var t2, t3,
+        t1 = this.scanner;
+      t1.expect$1("//");
+      t2 = t1.string.length;
+      while (true) {
+        if (t1._string_scanner$_position !== t2) {
+          t3 = t1.peekChar$0();
+          t3 = !(t3 === 10 || t3 === 13 || t3 === 12);
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        t1.readChar$0();
+      }
+      return true;
+    },
+    loudComment$0() {
+      var next,
+        t1 = this.scanner;
+      t1.expect$1("/*");
+      for (; true;) {
+        if (t1.readChar$0() !== 42)
+          continue;
+        do
+          next = t1.readChar$0();
+        while (next === 42);
+        if (next === 47)
+          break;
+      }
+    },
+    identifier$2$normalize$unit(normalize, unit) {
+      var t2, _0_0, _this = this,
+        _s20_ = "Expected identifier.",
+        text = new A.StringBuffer(""),
+        t1 = _this.scanner;
+      if (t1.scanChar$1(45)) {
+        t2 = text._contents = "" + A.Primitives_stringFromCharCode(45);
+        if (t1.scanChar$1(45)) {
+          text._contents = t2 + A.Primitives_stringFromCharCode(45);
+          _this._identifierBody$3$normalize$unit(text, normalize, unit);
+          t1 = text._contents;
+          return t1.charCodeAt(0) == 0 ? t1 : t1;
+        }
+      } else
+        t2 = "";
+      $label0$0: {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          t1.error$1(0, _s20_);
+        if (95 === _0_0 && normalize) {
+          t1.readChar$0();
+          text._contents = t2 + A.Primitives_stringFromCharCode(45);
+          break $label0$0;
+        }
+        if (_0_0 === 95 || A.CharacterExtension_get_isAlphabetic(_0_0) || _0_0 >= 128) {
+          text._contents = t2 + A.Primitives_stringFromCharCode(t1.readChar$0());
+          break $label0$0;
+        }
+        if (92 === _0_0) {
+          text._contents = t2 + _this.escape$1$identifierStart(true);
+          break $label0$0;
+        }
+        t1.error$1(0, _s20_);
+      }
+      _this._identifierBody$3$normalize$unit(text, normalize, unit);
+      t1 = text._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    identifier$0() {
+      return this.identifier$2$normalize$unit(false, false);
+    },
+    identifier$1$normalize(normalize) {
+      return this.identifier$2$normalize$unit(normalize, false);
+    },
+    identifier$1$unit(unit) {
+      return this.identifier$2$normalize$unit(false, unit);
+    },
+    _identifierBody$3$normalize$unit(text, normalize, unit) {
+      var t1, _1_0, _0_0, t2;
+      for (t1 = this.scanner; true;) {
+        _1_0 = t1.peekChar$0();
+        if (_1_0 == null)
+          break;
+        if (45 === _1_0 && unit) {
+          _0_0 = t1.peekChar$1(1);
+          if (46 !== _0_0)
+            t2 = A._isInt(_0_0) && _0_0 >= 48 && _0_0 <= 57;
+          else
+            t2 = true;
+          if (t2)
+            break;
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          text._contents += t2;
+          continue;
+        }
+        if (95 === _1_0 && normalize) {
+          t1.readChar$0();
+          t2 = A.Primitives_stringFromCharCode(45);
+          text._contents += t2;
+          continue;
+        }
+        if (_1_0 !== 95) {
+          if (!(_1_0 >= 97 && _1_0 <= 122))
+            t2 = _1_0 >= 65 && _1_0 <= 90;
+          else
+            t2 = true;
+          t2 = t2 || _1_0 >= 128;
+        } else
+          t2 = true;
+        if (!t2)
+          t2 = _1_0 >= 48 && _1_0 <= 57 || _1_0 === 45;
+        else
+          t2 = true;
+        if (t2) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          text._contents += t2;
+          continue;
+        }
+        if (92 === _1_0) {
+          t2 = this.escape$0();
+          text._contents += t2;
+          continue;
+        }
+        break;
+      }
+    },
+    _identifierBody$1(text) {
+      return this._identifierBody$3$normalize$unit(text, false, false);
+    },
+    string$0() {
+      var buffer, _0_0, t2,
+        t1 = this.scanner,
+        quote = t1.readChar$0();
+      if (quote !== 39 && quote !== 34)
+        t1.error$2$position(0, "Expected string.", t1._string_scanner$_position - 1);
+      buffer = new A.StringBuffer("");
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 === quote) {
+          t1.readChar$0();
+          break;
+        }
+        if (_0_0 == null || _0_0 === 10 || _0_0 === 13 || _0_0 === 12)
+          t1.error$1(0, "Expected " + A.Primitives_stringFromCharCode(quote) + ".");
+        if (92 === _0_0) {
+          t2 = t1.peekChar$1(1);
+          if (t2 === 10 || t2 === 13 || t2 === 12) {
+            t1.readChar$0();
+            t1.readChar$0();
+          } else {
+            t2 = A.Primitives_stringFromCharCode(A.consumeEscapedCharacter(t1));
+            buffer._contents += t2;
+          }
+          continue;
+        }
+        t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+        buffer._contents += t2;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    declarationValue$1$allowEmpty(allowEmpty) {
+      var t1, t2, wroteNewline, next, t3, start, end, _0_0, _this = this,
+        buffer = new A.StringBuffer(""),
+        brackets = A._setArrayType([], type$.JSArray_int);
+      for (t1 = _this.scanner, t2 = _this.get$string(), wroteNewline = false; true;) {
+        next = t1.peekChar$0();
+        if (next == null)
+          break;
+        if (92 === next) {
+          t3 = _this.escape$1$identifierStart(true);
+          buffer._contents += t3;
+          wroteNewline = false;
+          continue;
+        }
+        if (34 === next || 39 === next) {
+          start = t1._string_scanner$_position;
+          t2.call$0();
+          end = t1._string_scanner$_position;
+          buffer._contents += B.JSString_methods.substring$2(t1.string, start, end);
+          wroteNewline = false;
+          continue;
+        }
+        if (47 === next) {
+          if (t1.peekChar$1(1) === 42) {
+            t3 = _this.get$loudComment();
+            start = t1._string_scanner$_position;
+            t3.call$0();
+            end = t1._string_scanner$_position;
+            buffer._contents += B.JSString_methods.substring$2(t1.string, start, end);
+          } else {
+            t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            buffer._contents += t3;
+          }
+          wroteNewline = false;
+          continue;
+        }
+        if (32 === next || 9 === next) {
+          if (!wroteNewline) {
+            t3 = t1.peekChar$1(1);
+            t3 = !(t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12);
+          } else
+            t3 = true;
+          if (t3) {
+            t3 = A.Primitives_stringFromCharCode(32);
+            buffer._contents += t3;
+          }
+          t1.readChar$0();
+          continue;
+        }
+        if (10 === next || 13 === next || 12 === next) {
+          t3 = t1.peekChar$1(-1);
+          if (!(t3 === 10 || t3 === 13 || t3 === 12))
+            buffer._contents += "\n";
+          t1.readChar$0();
+          wroteNewline = true;
+          continue;
+        }
+        if (40 === next || 123 === next || 91 === next) {
+          t3 = A.Primitives_stringFromCharCode(next);
+          buffer._contents += t3;
+          brackets.push(A.opposite(t1.readChar$0()));
+          wroteNewline = false;
+          continue;
+        }
+        if (41 === next || 125 === next || 93 === next) {
+          if (brackets.length === 0)
+            break;
+          t3 = A.Primitives_stringFromCharCode(next);
+          buffer._contents += t3;
+          t1.expectChar$1(brackets.pop());
+          wroteNewline = false;
+          continue;
+        }
+        if (59 === next) {
+          if (brackets.length === 0)
+            break;
+          t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          buffer._contents += t3;
+          continue;
+        }
+        if (117 === next || 85 === next) {
+          _0_0 = _this.tryUrl$0();
+          if (_0_0 != null)
+            buffer._contents += _0_0;
+          else {
+            t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            buffer._contents += t3;
+          }
+          wroteNewline = false;
+          continue;
+        }
+        if (_this.lookingAtIdentifier$0()) {
+          t3 = _this.identifier$0();
+          buffer._contents += t3;
+        } else {
+          t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          buffer._contents += t3;
+        }
+        wroteNewline = false;
+      }
+      if (brackets.length !== 0)
+        t1.expectChar$1(B.JSArray_methods.get$last(brackets));
+      if (!allowEmpty && buffer._contents.length === 0)
+        t1.error$1(0, "Expected token.");
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    declarationValue$0() {
+      return this.declarationValue$1$allowEmpty(false);
+    },
+    tryUrl$0() {
+      var buffer, _0_0, t2, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (!_this.scanIdentifier$1("url"))
+        return null;
+      if (!t1.scanChar$1(40)) {
+        t1.set$state(start);
+        return null;
+      }
+      _this.whitespace$0();
+      buffer = new A.StringBuffer("");
+      buffer._contents = "" + "url(";
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          break;
+        if (92 === _0_0) {
+          t2 = _this.escape$0();
+          buffer._contents += t2;
+          continue;
+        }
+        if (37 !== _0_0)
+          if (38 !== _0_0)
+            if (35 !== _0_0)
+              t2 = _0_0 >= 42 && _0_0 <= 126 || _0_0 >= 128;
+            else
+              t2 = true;
+          else
+            t2 = true;
+        else
+          t2 = true;
+        if (t2) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          buffer._contents += t2;
+          continue;
+        }
+        if (_0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12) {
+          _this.whitespace$0();
+          if (t1.peekChar$0() !== 41)
+            break;
+          continue;
+        }
+        if (41 === _0_0) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t2 = buffer._contents += t2;
+          return t2.charCodeAt(0) == 0 ? t2 : t2;
+        }
+        break;
+      }
+      t1.set$state(start);
+      return null;
+    },
+    variableName$0() {
+      this.scanner.expectChar$1(36);
+      return this.identifier$1$normalize(true);
+    },
+    escape$1$identifierStart(identifierStart) {
+      var value, _0_0, i, next, t2, exception,
+        _s25_ = "Expected escape sequence.",
+        t1 = this.scanner,
+        start = t1._string_scanner$_position;
+      t1.expectChar$1(92);
+      value = 0;
+      $label0$1: {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          t1.error$1(0, _s25_);
+        if (_0_0 === 10 || _0_0 === 13 || _0_0 === 12)
+          t1.error$1(0, _s25_);
+        if (A.CharacterExtension_get_isHex(_0_0)) {
+          for (i = 0; i < 6; ++i) {
+            next = t1.peekChar$0();
+            if (next != null) {
+              if (!(next >= 48 && next <= 57))
+                if (!(next >= 97 && next <= 102))
+                  t2 = next >= 65 && next <= 70;
+                else
+                  t2 = true;
+              else
+                t2 = true;
+              t2 = !t2;
+            } else
+              t2 = true;
+            if (t2)
+              break;
+            value *= 16;
+            value += A.asHex(t1.readChar$0());
+          }
+          this.scanCharIf$1(new A.Parser_escape_closure());
+          break $label0$1;
+        }
+        value = t1.readChar$0();
+      }
+      if (identifierStart) {
+        t2 = value;
+        t2 = t2 === 95 || A.CharacterExtension_get_isAlphabetic(t2) || t2 >= 128;
+      } else {
+        t2 = value;
+        if (!(t2 === 95 || A.CharacterExtension_get_isAlphabetic(t2) || t2 >= 128))
+          t2 = t2 >= 48 && t2 <= 57 || t2 === 45;
+        else
+          t2 = true;
+      }
+      if (t2)
+        try {
+          t2 = A.Primitives_stringFromCharCode(value);
+          return t2;
+        } catch (exception) {
+          if (type$.RangeError._is(A.unwrapException(exception)))
+            t1.error$3$length$position(0, "Invalid Unicode code point.", t1._string_scanner$_position - start, start);
+          else
+            throw exception;
+        }
+      else {
+        if (!(value <= 31))
+          if (!J.$eq$(value, 127))
+            if (identifierStart) {
+              t1 = value;
+              t1 = t1 >= 48 && t1 <= 57;
+            } else
+              t1 = false;
+          else
+            t1 = true;
+        else
+          t1 = true;
+        if (t1) {
+          t1 = "" + A.Primitives_stringFromCharCode(92);
+          if (value > 15)
+            t1 += A.Primitives_stringFromCharCode(A.hexCharFor(B.JSNumber_methods._shrOtherPositive$1(value, 4)));
+          t1 = t1 + A.Primitives_stringFromCharCode(A.hexCharFor(value & 15)) + A.Primitives_stringFromCharCode(32);
+          return t1.charCodeAt(0) == 0 ? t1 : t1;
+        } else
+          return A.String_String$fromCharCodes(A._setArrayType([92, value], type$.JSArray_int), 0, null);
+      }
+    },
+    escape$0() {
+      return this.escape$1$identifierStart(false);
+    },
+    scanCharIf$1(condition) {
+      var t1 = this.scanner;
+      if (!condition.call$1(t1.peekChar$0()))
+        return false;
+      t1.readChar$0();
+      return true;
+    },
+    scanIdentChar$2$caseSensitive(char, caseSensitive) {
+      var t3,
+        t1 = new A.Parser_scanIdentChar_matches(caseSensitive, char),
+        t2 = this.scanner,
+        _0_0 = t2.peekChar$0();
+      if (_0_0 != null) {
+        t3 = t1.call$1(_0_0);
+        t3 = t3;
+      } else
+        t3 = false;
+      if (t3) {
+        t2.readChar$0();
+        return true;
+      }
+      if (92 === _0_0) {
+        t3 = t2._string_scanner$_position;
+        if (t1.call$1(A.consumeEscapedCharacter(t2)))
+          return true;
+        t2.set$state(new A._SpanScannerState(t2, t3));
+      }
+      return false;
+    },
+    scanIdentChar$1(char) {
+      return this.scanIdentChar$2$caseSensitive(char, false);
+    },
+    expectIdentChar$1(letter) {
+      var t1;
+      if (this.scanIdentChar$2$caseSensitive(letter, false))
+        return;
+      t1 = this.scanner;
+      t1.error$2$position(0, 'Expected "' + A.Primitives_stringFromCharCode(letter) + '".', t1._string_scanner$_position);
+    },
+    lookingAtIdentifier$1($forward) {
+      var t1, _1_0, t2, _0_0;
+      if ($forward == null)
+        $forward = 0;
+      t1 = this.scanner;
+      _1_0 = t1.peekChar$1($forward);
+      $label0$0: {
+        if (A._isInt(_1_0))
+          t2 = _1_0 === 95 || A.CharacterExtension_get_isAlphabetic(_1_0) || _1_0 >= 128;
+        else
+          t2 = false;
+        if (t2 || 92 === _1_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (45 === _1_0) {
+          _0_0 = t1.peekChar$1($forward + 1);
+          $label1$1: {
+            if (A._isInt(_0_0))
+              t1 = _0_0 === 95 || A.CharacterExtension_get_isAlphabetic(_0_0) || _0_0 >= 128;
+            else
+              t1 = false;
+            t1 = t1 || 92 === _0_0 || 45 === _0_0;
+            if (t1)
+              break $label1$1;
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    lookingAtIdentifier$0() {
+      return this.lookingAtIdentifier$1(null);
+    },
+    lookingAtIdentifierBody$0() {
+      var t1,
+        next = this.scanner.peekChar$0();
+      if (next != null) {
+        if (!(next === 95 || A.CharacterExtension_get_isAlphabetic(next) || next >= 128))
+          t1 = next >= 48 && next <= 57 || next === 45;
+        else
+          t1 = true;
+        t1 = t1 || next === 92;
+      } else
+        t1 = false;
+      return t1;
+    },
+    scanIdentifier$2$caseSensitive(text, caseSensitive) {
+      var t1, t2, _this = this;
+      if (!_this.lookingAtIdentifier$0())
+        return false;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      if (_this._consumeIdentifier$2(text, caseSensitive) && !_this.lookingAtIdentifierBody$0())
+        return true;
+      else {
+        t1.set$state(new A._SpanScannerState(t1, t2));
+        return false;
+      }
+    },
+    scanIdentifier$1(text) {
+      return this.scanIdentifier$2$caseSensitive(text, false);
+    },
+    _consumeIdentifier$2(text, caseSensitive) {
+      var t1, t2, t3;
+      for (t1 = new A.CodeUnits(text), t2 = type$.CodeUnits, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (!this.scanIdentChar$2$caseSensitive(t3 == null ? t2._as(t3) : t3, caseSensitive))
+          return false;
+      }
+      return true;
+    },
+    expectIdentifier$2$name(text, $name) {
+      var t1, start, t2, t3, t4, t5, t6;
+      if ($name == null)
+        $name = '"' + text + '"';
+      t1 = this.scanner;
+      start = t1._string_scanner$_position;
+      for (t2 = new A.CodeUnits(text), t3 = type$.CodeUnits, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t4 = "Expected " + $name, t5 = t4 + ".", t3 = t3._eval$1("ListBase.E"); t2.moveNext$0();) {
+        t6 = t2.__internal$_current;
+        if (this.scanIdentChar$2$caseSensitive(t6 == null ? t3._as(t6) : t6, false))
+          continue;
+        t1.error$2$position(0, t5, start);
+      }
+      if (!this.lookingAtIdentifierBody$0())
+        return;
+      t1.error$2$position(0, t4, start);
+    },
+    expectIdentifier$1(text) {
+      return this.expectIdentifier$2$name(text, null);
+    },
+    rawText$1(consumer) {
+      var t1 = this.scanner,
+        start = t1._string_scanner$_position;
+      consumer.call$0();
+      return t1.substring$1(0, start);
+    },
+    spanFrom$1(state) {
+      var span = this.scanner.spanFrom$1(state);
+      return this._interpolationMap == null ? span : new A.LazyFileSpan(new A.Parser_spanFrom_closure(this, span));
+    },
+    error$3(_, message, span, trace) {
+      var exception = new A.StringScannerException(this.scanner.string, message, span);
+      if (trace == null)
+        throw A.wrapException(exception);
+      else
+        A.throwWithTrace(exception, this.get$error(this), trace);
+    },
+    error$2(_, message, span) {
+      return this.error$3(0, message, span, null);
+    },
+    withErrorMessage$1$2(message, callback) {
+      var error, stackTrace, t1, exception;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SourceSpanFormatException._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = J.get$span$z(error);
+          A.throwWithTrace(new A.SourceSpanFormatException(error.get$source(), message, t1), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    withErrorMessage$2(message, callback) {
+      return this.withErrorMessage$1$2(message, callback, type$.dynamic);
+    },
+    wrapSpanFormatException$1$1(callback) {
+      var error, stackTrace, map, error0, stackTrace0, span, error1, stackTrace1, span0, secondarySpans, t1, t2, span1, description, _0_0, t3, exception, t4, _this = this,
+        _s8_ = "expected";
+      try {
+        try {
+          t3 = callback.call$0();
+          return t3;
+        } catch (exception) {
+          t3 = A.unwrapException(exception);
+          if (type$.SourceSpanFormatException._is(t3)) {
+            error = t3;
+            stackTrace = A.getTraceFromException(exception);
+            map = _this._interpolationMap;
+            if (map == null)
+              throw exception;
+            A.throwWithTrace(map.mapException$1(error), error, stackTrace);
+          } else
+            throw exception;
+        }
+      } catch (exception) {
+        t3 = A.unwrapException(exception);
+        if (type$.SourceSpanFormatException._is(t3)) {
+          error0 = t3;
+          stackTrace0 = A.getTraceFromException(exception);
+          span = J.get$span$z(error0);
+          if (A.startsWithIgnoreCase(error0._span_exception$_message, _s8_))
+            span = _this._adjustExceptionSpan$1(span);
+          t1 = error0._span_exception$_message;
+          t2 = span;
+          A.throwWithTrace(new A.SassFormatException(B.Set_empty, t1, t2), error0, stackTrace0);
+        } else if (type$.MultiSourceSpanFormatException._is(t3)) {
+          error1 = t3;
+          stackTrace1 = A.getTraceFromException(exception);
+          span0 = J.get$span$z(error1);
+          t3 = type$.FileSpan;
+          t4 = type$.String;
+          secondarySpans = error1.get$secondarySpans().cast$2$0(0, t3, t4);
+          if (A.startsWithIgnoreCase(error1._span_exception$_message, _s8_)) {
+            span0 = _this._adjustExceptionSpan$1(span0);
+            t1 = A.LinkedHashMap_LinkedHashMap$_empty(t3, t4);
+            for (t3 = A.MapExtensions_get_pairs(secondarySpans, t3, t4), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+              t2 = t3.get$current(t3);
+              span1 = null;
+              description = null;
+              _0_0 = t2;
+              span1 = _0_0._0;
+              description = _0_0._1;
+              J.$indexSet$ax(t1, _this._adjustExceptionSpan$1(span1), description);
+            }
+            secondarySpans = t1;
+          }
+          A.throwWithTrace(A.MultiSpanSassFormatException$(error1._span_exception$_message, span0, error1.get$primaryLabel(), secondarySpans, null), error1, stackTrace1);
+        } else
+          throw exception;
+      }
+    },
+    wrapSpanFormatException$1(callback) {
+      return this.wrapSpanFormatException$1$1(callback, type$.dynamic);
+    },
+    _adjustExceptionSpan$1(span) {
+      var start, t1;
+      if (span.get$length(span) > 0)
+        return span;
+      start = this._firstNewlineBefore$1(span.get$start(span));
+      if (start.$eq(0, span.get$start(span)))
+        t1 = span;
+      else {
+        t1 = start.offset;
+        t1 = A._FileSpan$(start.file, t1, t1);
+      }
+      return t1;
+    },
+    _firstNewlineBefore$1($location) {
+      var lastNewline, codeUnit,
+        t1 = $location.file,
+        t2 = $location.offset,
+        text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1._decodedChars, 0, t2), 0, null),
+        index = t2 - 1;
+      for (lastNewline = null; index >= 0;) {
+        codeUnit = text.charCodeAt(index);
+        if (!(codeUnit === 32 || codeUnit === 9 || codeUnit === 10 || codeUnit === 13 || codeUnit === 12)) {
+          if (lastNewline == null)
+            t1 = $location;
+          else {
+            t2 = new A.FileLocation(t1, lastNewline);
+            t2.FileLocation$_$2(t1, lastNewline);
+            t1 = t2;
+          }
+          return t1;
+        }
+        if (codeUnit === 10 || codeUnit === 13 || codeUnit === 12)
+          lastNewline = index;
+        --index;
+      }
+      return $location;
+    }
+  };
+  A.Parser__parseIdentifier_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        result = t1.identifier$0();
+      t1.scanner.expectDone$0();
+      return result;
+    },
+    $signature: 25
+  };
+  A.Parser_escape_closure.prototype = {
+    call$1(char) {
+      return char === 32 || char === 9 || char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.Parser_scanIdentChar_matches.prototype = {
+    call$1(actual) {
+      var t1 = this.char;
+      return this.caseSensitive ? actual === t1 : A.characterEqualsIgnoreCase(t1, actual);
+    },
+    $signature: 45
+  };
+  A.Parser_spanFrom_closure.prototype = {
+    call$0() {
+      return this.$this._interpolationMap.mapSpan$1(this.span);
+    },
+    $signature: 26
+  };
+  A.SassParser.prototype = {
+    get$currentIndentation() {
+      return this._currentIndentation;
+    },
+    get$indented() {
+      return true;
+    },
+    styleRuleSelector$0() {
+      var t4,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer(t3, A._setArrayType([], type$.JSArray_Object));
+      do {
+        buffer.addInterpolation$1(this.almostAnyValue$1$omitComments(true));
+        t4 = A.Primitives_stringFromCharCode(10);
+        t4 = t3._contents += t4;
+      } while (B.JSString_methods.endsWith$1(B.JSString_methods.trimRight$0(t4.charCodeAt(0) == 0 ? t4 : t4), ",") && this.scanCharIf$1(new A.SassParser_styleRuleSelector_closure()));
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    expectStatementSeparator$1($name) {
+      var t1, _this = this;
+      if (!_this.atEndOfStatement$0())
+        _this._expectNewline$0();
+      if (_this._peekIndentation$0() <= _this._currentIndentation)
+        return;
+      t1 = $name == null ? "here" : "beneath a " + $name;
+      _this.scanner.error$2$position(0, "Nothing may be indented " + t1 + ".", _this._nextIndentationEnd.position);
+    },
+    expectStatementSeparator$0() {
+      return this.expectStatementSeparator$1(null);
+    },
+    atEndOfStatement$0() {
+      var t1 = this.scanner.peekChar$0();
+      if (t1 == null)
+        t1 = null;
+      else
+        t1 = t1 === 10 || t1 === 13 || t1 === 12;
+      return t1 !== false;
+    },
+    lookingAtChildren$0() {
+      return this.atEndOfStatement$0() && this._peekIndentation$0() > this._currentIndentation;
+    },
+    importArgument$0() {
+      var url, span, innerError, stackTrace, t1, _0_0, start, next, t2, exception, _this = this;
+      $label0$0: {
+        t1 = _this.scanner;
+        _0_0 = t1.peekChar$0();
+        if (117 === _0_0 || 85 === _0_0) {
+          start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+          if (_this.scanIdentifier$1("url"))
+            if (t1.scanChar$1(40)) {
+              t1.set$state(start);
+              return _this.super$StylesheetParser$importArgument();
+            } else
+              t1.set$state(start);
+          break $label0$0;
+        }
+        if (39 === _0_0 || 34 === _0_0)
+          return _this.super$StylesheetParser$importArgument();
+      }
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      next = t1.peekChar$0();
+      while (true) {
+        if (next != null)
+          if (next !== 44)
+            if (next !== 59)
+              t2 = !(next === 10 || next === 13 || next === 12);
+            else
+              t2 = false;
+          else
+            t2 = false;
+        else
+          t2 = false;
+        if (!t2)
+          break;
+        t1.readChar$0();
+        next = t1.peekChar$0();
+      }
+      url = t1.substring$1(0, start.position);
+      span = t1.spanFrom$1(start);
+      if (_this.isPlainImportUrl$1(url))
+        return new A.StaticImport(A.Interpolation$(A._setArrayType([A.serializeValue(new A.SassString(url, true), true, true)], type$.JSArray_Object), span), null, span);
+      else
+        try {
+          t1 = _this.parseImportUrl$1(url);
+          return new A.DynamicImport(t1, span);
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (type$.FormatException._is(t1)) {
+            innerError = t1;
+            stackTrace = A.getTraceFromException(exception);
+            _this.error$3(0, "Invalid URL: " + J.get$message$x(innerError), span, stackTrace);
+          } else
+            throw exception;
+        }
+    },
+    scanElse$1(ifIndentation) {
+      var t1, t2, startIndentation, startNextIndentation, startNextIndentationEnd, _this = this;
+      if (_this._peekIndentation$0() !== ifIndentation)
+        return false;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      startIndentation = _this._currentIndentation;
+      startNextIndentation = _this._nextIndentation;
+      startNextIndentationEnd = _this._nextIndentationEnd;
+      _this._readIndentation$0();
+      if (t1.scanChar$1(64) && _this.scanIdentifier$1("else"))
+        return true;
+      t1.set$state(new A._SpanScannerState(t1, t2));
+      _this._currentIndentation = startIndentation;
+      _this._nextIndentation = startNextIndentation;
+      _this._nextIndentationEnd = startNextIndentationEnd;
+      return false;
+    },
+    children$1(_, child) {
+      var children = A._setArrayType([], type$.JSArray_Statement);
+      this._whileIndentedLower$1(new A.SassParser_children_closure(this, child, children));
+      return children;
+    },
+    statements$1(statement) {
+      var statements, t2, _1_0,
+        t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      if (9 === _0_0 || 32 === _0_0)
+        t1.error$3$length$position(0, string$.Indent, t1._string_scanner$_position, 0);
+      statements = A._setArrayType([], type$.JSArray_Statement);
+      for (t2 = t1.string.length; t1._string_scanner$_position !== t2;) {
+        _1_0 = this._child$1(statement);
+        if (_1_0 != null)
+          statements.push(_1_0);
+        this._readIndentation$0();
+      }
+      return statements;
+    },
+    _child$1(child) {
+      var _0_0, _this = this,
+        t1 = _this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label0$0: {
+        if (13 === _1_0 || 10 === _1_0 || 12 === _1_0) {
+          t1 = null;
+          break $label0$0;
+        }
+        if (36 === _1_0) {
+          t1 = _this.variableDeclarationWithoutNamespace$0();
+          break $label0$0;
+        }
+        if (47 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label1$1: {
+            if (47 === _0_0) {
+              t1 = _this._silentComment$0();
+              break $label1$1;
+            }
+            if (42 === _0_0) {
+              t1 = _this._loudComment$0();
+              break $label1$1;
+            }
+            t1 = child.call$0();
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        t1 = child.call$0();
+        break $label0$0;
+      }
+      return t1;
+    },
+    _silentComment$0() {
+      var buffer, parentIndentation, t3, t4, t5, commentPrefix, i, t6, i0, t7, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("//");
+      buffer = new A.StringBuffer("");
+      parentIndentation = _this._currentIndentation;
+      t3 = t1.string.length;
+      t4 = 1 + parentIndentation;
+      t5 = 2 + parentIndentation;
+      $label0$0:
+        do {
+          commentPrefix = t1.scanChar$1(47) ? "///" : "//";
+          for (i = commentPrefix.length; true;) {
+            t6 = buffer._contents += commentPrefix;
+            for (i0 = i; i0 < _this._currentIndentation - parentIndentation; ++i0) {
+              t6 += A.Primitives_stringFromCharCode(32);
+              buffer._contents = t6;
+            }
+            while (true) {
+              if (t1._string_scanner$_position !== t3) {
+                t7 = t1.peekChar$0();
+                t7 = !(t7 === 10 || t7 === 13 || t7 === 12);
+              } else
+                t7 = false;
+              if (!t7)
+                break;
+              t6 += A.Primitives_stringFromCharCode(t1.readChar$0());
+              buffer._contents = t6;
+            }
+            buffer._contents = t6 + "\n";
+            if (_this._peekIndentation$0() < parentIndentation)
+              break $label0$0;
+            if (_this._peekIndentation$0() === parentIndentation) {
+              if (t1.peekChar$1(t4) === 47 && t1.peekChar$1(t5) === 47)
+                _this._readIndentation$0();
+              break;
+            }
+            _this._readIndentation$0();
+          }
+        } while (t1.scan$1("//"));
+      t3 = buffer._contents;
+      return _this.lastSilentComment = new A.SilentComment(t3.charCodeAt(0) == 0 ? t3 : t3, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _loudComment$0() {
+      var t3, t4, buffer, parentIndentation, t5, t6, first, beginningOfComment, t7, end, i, _0_0, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("/*");
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer(t3, t4);
+      t3._contents = "" + "/*";
+      parentIndentation = _this._currentIndentation;
+      for (t5 = t1.string, t6 = t5.length, first = true; true; first = false) {
+        if (first) {
+          beginningOfComment = t1._string_scanner$_position;
+          _this.spaces$0();
+          t7 = t1.peekChar$0();
+          if (t7 === 10 || t7 === 13 || t7 === 12) {
+            _this._readIndentation$0();
+            t7 = A.Primitives_stringFromCharCode(32);
+            t3._contents += t7;
+          } else {
+            end = t1._string_scanner$_position;
+            t3._contents += B.JSString_methods.substring$2(t5, beginningOfComment, end);
+          }
+        } else {
+          t7 = t3._contents += "\n";
+          t3._contents = t7 + " * ";
+        }
+        for (i = 3; i < _this._currentIndentation - parentIndentation; ++i) {
+          t7 = A.Primitives_stringFromCharCode(32);
+          t3._contents += t7;
+        }
+        for (; t1._string_scanner$_position !== t6;) {
+          _0_0 = t1.peekChar$0();
+          if (10 === _0_0 || 13 === _0_0 || 12 === _0_0)
+            break;
+          if (35 === _0_0) {
+            if (t1.peekChar$1(1) === 123) {
+              t7 = _this.singleInterpolation$0();
+              buffer._flushText$0();
+              t4.push(t7);
+            } else {
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+            }
+            continue;
+          }
+          t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t7;
+        }
+        if (_this._peekIndentation$0() <= parentIndentation)
+          break;
+        for (; _this._lookingAtDoubleNewline$0();) {
+          _this._expectNewline$0();
+          t7 = t3._contents += "\n";
+          t3._contents = t7 + " *";
+        }
+        _this._readIndentation$0();
+      }
+      t4 = t3._contents;
+      if (!B.JSString_methods.endsWith$1(B.JSString_methods.trimRight$0(t4.charCodeAt(0) == 0 ? t4 : t4), "*/"))
+        t3._contents += " */";
+      return new A.LoudComment(buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2))));
+    },
+    whitespaceWithoutComments$0() {
+      var t1, t2, next;
+      for (t1 = this.scanner, t2 = t1.string.length; t1._string_scanner$_position !== t2;) {
+        next = t1.peekChar$0();
+        if (next !== 9 && next !== 32)
+          break;
+        t1.readChar$0();
+      }
+    },
+    loudComment$0() {
+      var next,
+        t1 = this.scanner;
+      t1.expect$1("/*");
+      for (; true;) {
+        next = t1.readChar$0();
+        if (next === 10 || next === 13 || next === 12)
+          t1.error$1(0, "expected */.");
+        if (next !== 42)
+          continue;
+        do
+          next = t1.readChar$0();
+        while (next === 42);
+        if (next === 47)
+          break;
+      }
+    },
+    _expectNewline$0() {
+      var t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      if (59 === _0_0)
+        t1.error$1(0, string$.semico);
+      if (13 === _0_0) {
+        t1.readChar$0();
+        if (t1.peekChar$0() === 10)
+          t1.readChar$0();
+        return;
+      }
+      if (10 === _0_0 || 12 === _0_0) {
+        t1.readChar$0();
+        return;
+      }
+      t1.error$1(0, "expected newline.");
+    },
+    _lookingAtDoubleNewline$0() {
+      var _0_0,
+        t1 = this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label1$1: {
+        if (13 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label0$0: {
+            if (10 === _0_0) {
+              t1 = t1.peekChar$1(2);
+              t1 = t1 === 10 || t1 === 13 || t1 === 12;
+              break $label0$0;
+            }
+            if (13 === _0_0 || 12 === _0_0) {
+              t1 = true;
+              break $label0$0;
+            }
+            t1 = false;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        if (10 === _1_0 || 12 === _1_0) {
+          t1 = t1.peekChar$1(1);
+          t1 = t1 === 10 || t1 === 13 || t1 === 12;
+          break $label1$1;
+        }
+        t1 = false;
+        break $label1$1;
+      }
+      return t1;
+    },
+    _whileIndentedLower$1(body) {
+      var t1, t2, childIndentation, indentation, t3, t4, _this = this,
+        parentIndentation = _this._currentIndentation;
+      for (t1 = _this.scanner, t2 = t1._sourceFile, childIndentation = null; _this._peekIndentation$0() > parentIndentation;) {
+        indentation = _this._readIndentation$0();
+        if (childIndentation == null)
+          childIndentation = indentation;
+        if (childIndentation !== indentation) {
+          t3 = t1._string_scanner$_position;
+          t4 = t2.getColumn$1(t3);
+          t1.error$3$length$position(0, "Inconsistent indentation, expected " + childIndentation + " spaces.", t2.getColumn$1(t1._string_scanner$_position), t3 - t4);
+        }
+        body.call$0();
+      }
+    },
+    _readIndentation$0() {
+      var t1, _this = this,
+        currentIndentation = _this._nextIndentation;
+      if (currentIndentation == null)
+        currentIndentation = _this._nextIndentation = _this._peekIndentation$0();
+      _this._currentIndentation = currentIndentation;
+      t1 = _this._nextIndentationEnd;
+      t1.toString;
+      _this.scanner.set$state(t1);
+      _this._nextIndentationEnd = _this._nextIndentation = null;
+      return currentIndentation;
+    },
+    _peekIndentation$0() {
+      var t1, t2, t3, start, containsTab, containsSpace, nextIndentation, _1_0, t4, _this = this,
+        _0_0 = _this._nextIndentation;
+      if (_0_0 != null)
+        return _0_0;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      t3 = t1.string.length;
+      if (t2 === t3) {
+        _this._nextIndentation = 0;
+        _this._nextIndentationEnd = new A._SpanScannerState(t1, t2);
+        return 0;
+      }
+      start = new A._SpanScannerState(t1, t2);
+      if (!_this.scanCharIf$1(new A.SassParser__peekIndentation_closure()))
+        t1.error$2$position(0, "Expected newline.", t1._string_scanner$_position);
+      containsTab = A._Cell$();
+      containsSpace = A._Cell$();
+      nextIndentation = A._Cell$();
+      do {
+        containsSpace.__late_helper$_value = containsTab.__late_helper$_value = false;
+        nextIndentation.__late_helper$_value = 0;
+        for (; true;) {
+          $label0$0: {
+            _1_0 = t1.peekChar$0();
+            if (32 === _1_0) {
+              containsSpace.__late_helper$_value = true;
+              break $label0$0;
+            }
+            if (9 === _1_0) {
+              containsTab.__late_helper$_value = true;
+              break $label0$0;
+            }
+            break;
+          }
+          t2 = nextIndentation.__late_helper$_value;
+          if (t2 === nextIndentation)
+            A.throwExpression(A.LateError$localNI(""));
+          nextIndentation.__late_helper$_value = t2 + 1;
+          t1.readChar$0();
+        }
+        t2 = t1._string_scanner$_position;
+        if (t2 === t3) {
+          _this._nextIndentation = 0;
+          _this._nextIndentationEnd = new A._SpanScannerState(t1, t2);
+          t1.set$state(start);
+          return 0;
+        }
+      } while (_this.scanCharIf$1(new A.SassParser__peekIndentation_closure0()));
+      t2 = containsTab._readLocal$0();
+      t3 = containsSpace._readLocal$0();
+      if (t2) {
+        if (t3) {
+          t2 = t1._string_scanner$_position;
+          t3 = t1._sourceFile;
+          t4 = t3.getColumn$1(t2);
+          t1.error$3$length$position(0, "Tabs and spaces may not be mixed.", t3.getColumn$1(t1._string_scanner$_position), t2 - t4);
+        } else if (_this._spaces === true) {
+          t2 = t1._string_scanner$_position;
+          t3 = t1._sourceFile;
+          t4 = t3.getColumn$1(t2);
+          t1.error$3$length$position(0, "Expected spaces, was tabs.", t3.getColumn$1(t1._string_scanner$_position), t2 - t4);
+        }
+      } else if (t3 && _this._spaces === false) {
+        t2 = t1._string_scanner$_position;
+        t3 = t1._sourceFile;
+        t4 = t3.getColumn$1(t2);
+        t1.error$3$length$position(0, "Expected tabs, was spaces.", t3.getColumn$1(t1._string_scanner$_position), t2 - t4);
+      }
+      _this._nextIndentation = nextIndentation._readLocal$0();
+      if (nextIndentation._readLocal$0() > 0)
+        if (_this._spaces == null)
+          _this._spaces = containsSpace._readLocal$0();
+      _this._nextIndentationEnd = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.set$state(start);
+      return nextIndentation._readLocal$0();
+    }
+  };
+  A.SassParser_styleRuleSelector_closure.prototype = {
+    call$1(char) {
+      return char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.SassParser_children_closure.prototype = {
+    call$0() {
+      var _0_0 = this.$this._child$1(this.child);
+      if (_0_0 != null)
+        this.children.push(_0_0);
+    },
+    $signature: 0
+  };
+  A.SassParser__peekIndentation_closure.prototype = {
+    call$1(char) {
+      return char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.SassParser__peekIndentation_closure0.prototype = {
+    call$1(char) {
+      return char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.ScssParser.prototype = {
+    get$indented() {
+      return false;
+    },
+    get$currentIndentation() {
+      return 0;
+    },
+    styleRuleSelector$0() {
+      return this.almostAnyValue$0();
+    },
+    expectStatementSeparator$1($name) {
+      var t1, _0_0;
+      this.whitespaceWithoutComments$0();
+      t1 = this.scanner;
+      if (t1._string_scanner$_position === t1.string.length)
+        return;
+      _0_0 = t1.peekChar$0();
+      if (59 === _0_0 || 125 === _0_0)
+        return;
+      t1.expectChar$1(59);
+    },
+    expectStatementSeparator$0() {
+      return this.expectStatementSeparator$1(null);
+    },
+    atEndOfStatement$0() {
+      var next = this.scanner.peekChar$0();
+      return next == null || next === 59 || next === 125 || next === 123;
+    },
+    lookingAtChildren$0() {
+      return this.scanner.peekChar$0() === 123;
+    },
+    scanElse$1(ifIndentation) {
+      var t3, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      _this.whitespace$0();
+      t3 = t1._string_scanner$_position;
+      if (t1.scanChar$1(64)) {
+        if (_this.scanIdentifier$2$caseSensitive("else", true))
+          return true;
+        if (_this.scanIdentifier$2$caseSensitive("elseif", true)) {
+          A.WarnForDeprecation_warnForDeprecation(_this.logger, B.Deprecation_EJz, string$.x40elsei, t1.spanFrom$1(new A._SpanScannerState(t1, t3)), null);
+          t1.set$position(t1._string_scanner$_position - 2);
+          return true;
+        }
+      }
+      t1.set$state(new A._SpanScannerState(t1, t2));
+      return false;
+    },
+    children$1(_, child) {
+      var children, _this = this,
+        t1 = _this.scanner;
+      t1.expectChar$1(123);
+      _this.whitespaceWithoutComments$0();
+      children = A._setArrayType([], type$.JSArray_Statement);
+      for (; true;)
+        switch (t1.peekChar$0()) {
+          case 36:
+            children.push(_this.variableDeclarationWithoutNamespace$0());
+            break;
+          case 47:
+            switch (t1.peekChar$1(1)) {
+              case 47:
+                children.push(_this._scss$_silentComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              case 42:
+                children.push(_this._scss$_loudComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              default:
+                children.push(child.call$0());
+            }
+            break;
+          case 59:
+            t1.readChar$0();
+            _this.whitespaceWithoutComments$0();
+            break;
+          case 125:
+            t1.expectChar$1(125);
+            return children;
+          default:
+            children.push(child.call$0());
+        }
+    },
+    statements$1(statement) {
+      var t1, t2, _0_0, _1_0, _this = this,
+        statements = A._setArrayType([], type$.JSArray_Statement);
+      _this.whitespaceWithoutComments$0();
+      for (t1 = _this.scanner, t2 = t1.string.length; t1._string_scanner$_position !== t2;)
+        switch (t1.peekChar$0()) {
+          case 36:
+            statements.push(_this.variableDeclarationWithoutNamespace$0());
+            break;
+          case 47:
+            switch (t1.peekChar$1(1)) {
+              case 47:
+                statements.push(_this._scss$_silentComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              case 42:
+                statements.push(_this._scss$_loudComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              default:
+                _0_0 = statement.call$0();
+                if (_0_0 != null)
+                  statements.push(_0_0);
+            }
+            break;
+          case 59:
+            t1.readChar$0();
+            _this.whitespaceWithoutComments$0();
+            break;
+          default:
+            _1_0 = statement.call$0();
+            if (_1_0 != null)
+              statements.push(_1_0);
+        }
+      return statements;
+    },
+    _scss$_silentComment$0() {
+      var t2, t3, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expect$1("//");
+      t2 = t1.string.length;
+      do {
+        while (true) {
+          if (t1._string_scanner$_position !== t2) {
+            t3 = t1.readChar$0();
+            t3 = !(t3 === 10 || t3 === 13 || t3 === 12);
+          } else
+            t3 = false;
+          if (!t3)
+            break;
+        }
+        if (t1._string_scanner$_position === t2)
+          break;
+        _this.spaces$0();
+      } while (t1.scan$1("//"));
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Silent, t1.spanFrom$1(start));
+      return _this.lastSilentComment = new A.SilentComment(t1.substring$1(0, start.position), t1.spanFrom$1(start));
+    },
+    _scss$_loudComment$0() {
+      var t3, t4, buffer, t5, endPosition, t6, result,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("/*");
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer(t3, t4);
+      t3._contents = "" + "/*";
+      $label0$1:
+        for (; true;)
+          switch (t1.peekChar$0()) {
+            case 35:
+              if (t1.peekChar$1(1) === 123) {
+                t5 = this.singleInterpolation$0();
+                buffer._flushText$0();
+                t4.push(t5);
+              } else {
+                t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+                t3._contents += t5;
+              }
+              break;
+            case 42:
+              t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t5;
+              if (t1.peekChar$0() !== 47)
+                continue $label0$1;
+              t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t5;
+              endPosition = t1._string_scanner$_position;
+              t5 = t1._sourceFile;
+              t6 = new A._SpanScannerState(t1, t2).position;
+              t1 = new A._FileSpan(t5, t6, endPosition);
+              t1._FileSpan$3(t5, t6, endPosition);
+              t6 = type$.Object;
+              t5 = A.List_List$of(t4, true, t6);
+              t2 = t3._contents;
+              if (t2.length !== 0)
+                t5.push(t2.charCodeAt(0) == 0 ? t2 : t2);
+              result = A.List_List$from(t5, false, t6);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t2 = new A.Interpolation(result, t1);
+              t2.Interpolation$2(t5, t1);
+              return new A.LoudComment(t2);
+            case 13:
+              t1.readChar$0();
+              if (t1.peekChar$0() !== 10) {
+                t5 = A.Primitives_stringFromCharCode(10);
+                t3._contents += t5;
+              }
+              break;
+            case 12:
+              t1.readChar$0();
+              t5 = A.Primitives_stringFromCharCode(10);
+              t3._contents += t5;
+              break;
+            default:
+              t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t5;
+          }
+    }
+  };
+  A.SelectorParser.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.SelectorParser_parse_closure(this));
+    },
+    parseCompoundSelector$0() {
+      return this.wrapSpanFormatException$1(new A.SelectorParser_parseCompoundSelector_closure(this));
+    },
+    _selectorList$0() {
+      var t4, t5, lineBreak, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = t1._sourceFile,
+        previousLine = t3.getLine$1(t2),
+        components = A._setArrayType([_this._complexSelector$0()], type$.JSArray_ComplexSelector);
+      _this.whitespace$0();
+      for (t4 = t1.string.length; t1.scanChar$1(44);) {
+        _this.whitespace$0();
+        if (t1.peekChar$0() === 44)
+          continue;
+        t5 = t1._string_scanner$_position;
+        if (t5 === t4)
+          break;
+        lineBreak = t3.getLine$1(t5) !== previousLine;
+        if (lineBreak)
+          previousLine = t3.getLine$1(t1._string_scanner$_position);
+        components.push(_this._complexSelector$1$lineBreak(lineBreak));
+      }
+      return A.SelectorList$(components, _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _complexSelector$1$lineBreak(lineBreak) {
+      var t4, lastCompound, initialCombinators, _0_0, t5, result, _this = this,
+        _s18_ = "expected selector.",
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        componentStart = new A._SpanScannerState(t1, t2),
+        t3 = type$.JSArray_CssValue_Combinator,
+        combinators = A._setArrayType([], t3),
+        components = A._setArrayType([], type$.JSArray_ComplexSelectorComponent);
+      for (t4 = type$.CssValue_Combinator, lastCompound = null, initialCombinators = null; true;) {
+        _this.whitespace$0();
+        _0_0 = t1.peekChar$0();
+        if (43 === _0_0) {
+          t5 = t1._string_scanner$_position;
+          t1.readChar$0();
+          combinators.push(new A.CssValue(B.Combinator_gRV, _this.spanFrom$1(new A._SpanScannerState(t1, t5)), t4));
+          continue;
+        }
+        if (62 === _0_0) {
+          t5 = t1._string_scanner$_position;
+          t1.readChar$0();
+          combinators.push(new A.CssValue(B.Combinator_8I8, _this.spanFrom$1(new A._SpanScannerState(t1, t5)), t4));
+          continue;
+        }
+        if (126 === _0_0) {
+          t5 = t1._string_scanner$_position;
+          t1.readChar$0();
+          combinators.push(new A.CssValue(B.Combinator_y18, _this.spanFrom$1(new A._SpanScannerState(t1, t5)), t4));
+          continue;
+        }
+        if (_0_0 == null)
+          break;
+        if (91 !== _0_0)
+          if (46 !== _0_0)
+            if (35 !== _0_0)
+              if (37 !== _0_0)
+                if (58 !== _0_0)
+                  if (38 !== _0_0)
+                    if (42 !== _0_0)
+                      if (124 !== _0_0)
+                        t5 = _this.lookingAtIdentifier$0();
+                      else
+                        t5 = true;
+                    else
+                      t5 = true;
+                  else
+                    t5 = true;
+                else
+                  t5 = true;
+              else
+                t5 = true;
+            else
+              t5 = true;
+          else
+            t5 = true;
+        else
+          t5 = true;
+        if (t5) {
+          if (lastCompound != null) {
+            t5 = _this.spanFrom$1(componentStart);
+            result = A.List_List$from(combinators, false, t4);
+            result.fixed$length = Array;
+            result.immutable$list = Array;
+            components.push(new A.ComplexSelectorComponent(lastCompound, result, t5));
+          } else if (combinators.length !== 0) {
+            componentStart = new A._SpanScannerState(t1, t1._string_scanner$_position);
+            initialCombinators = combinators;
+          }
+          lastCompound = _this._compoundSelector$0();
+          combinators = A._setArrayType([], t3);
+          if (t1.peekChar$0() === 38)
+            t1.error$1(0, string$.x22x26__ma);
+          continue;
+        }
+        break;
+      }
+      t3 = combinators.length !== 0;
+      if (t3 && _this._plainCss)
+        t1.error$1(0, _s18_);
+      else if (lastCompound != null) {
+        t3 = _this.spanFrom$1(componentStart);
+        components.push(new A.ComplexSelectorComponent(lastCompound, A.List_List$unmodifiable(combinators, t4), t3));
+      } else if (t3)
+        initialCombinators = combinators;
+      else
+        t1.error$1(0, _s18_);
+      t3 = initialCombinators == null ? B.List_empty1 : initialCombinators;
+      return A.ComplexSelector$(t3, components, _this.spanFrom$1(new A._SpanScannerState(t1, t2)), lineBreak);
+    },
+    _complexSelector$0() {
+      return this._complexSelector$1$lineBreak(false);
+    },
+    _compoundSelector$0() {
+      var t3, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        components = A._setArrayType([_this._simpleSelector$0()], type$.JSArray_SimpleSelector);
+      for (t3 = _this._plainCss; _this._isSimpleSelectorStart$1(t1.peekChar$0());)
+        components.push(_this._simpleSelector$1$allowParent(t3));
+      return A.CompoundSelector$(components, _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _simpleSelector$1$allowParent(allowParent) {
+      var t2, $name, text, t3, suffix, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (allowParent == null)
+        allowParent = _this._allowParent;
+      switch (t1.peekChar$0()) {
+        case 91:
+          return _this._attributeSelector$0();
+        case 46:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(46);
+          return new A.ClassSelector(_this.identifier$0(), _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+        case 35:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(35);
+          return new A.IDSelector(_this.identifier$0(), _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+        case 37:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(37);
+          $name = _this.identifier$0();
+          t2 = _this.spanFrom$1(new A._SpanScannerState(t1, t2));
+          if (_this._plainCss)
+            _this.error$2(0, string$.Placeh, t1.spanFrom$1(start));
+          return new A.PlaceholderSelector($name, t2);
+        case 58:
+          return _this._pseudoSelector$0();
+        case 38:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(38);
+          if (_this.lookingAtIdentifierBody$0()) {
+            text = new A.StringBuffer("");
+            _this._identifierBody$1(text);
+            if (text._contents.length === 0)
+              t1.error$1(0, "Expected identifier body.");
+            t3 = text._contents;
+            suffix = t3.charCodeAt(0) == 0 ? t3 : t3;
+          } else
+            suffix = null;
+          if (_this._plainCss && suffix != null)
+            t1.error$3$length$position(0, string$.Parent, t1._string_scanner$_position - t2, t2);
+          t2 = _this.spanFrom$1(new A._SpanScannerState(t1, t2));
+          if (!allowParent)
+            _this.error$2(0, "Parent selectors aren't allowed here.", t1.spanFrom$1(start));
+          return new A.ParentSelector(suffix, t2);
+        default:
+          return _this._typeOrUniversalSelector$0();
+      }
+    },
+    _simpleSelector$0() {
+      return this._simpleSelector$1$allowParent(null);
+    },
+    _attributeSelector$0() {
+      var $name, operator, next, value, modifier, _this = this, _null = null,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(91);
+      _this.whitespace$0();
+      $name = _this._attributeName$0();
+      _this.whitespace$0();
+      if (t1.scanChar$1(93))
+        return new A.AttributeSelector($name, _null, _null, _null, _this.spanFrom$1(start));
+      operator = _this._attributeOperator$0();
+      _this.whitespace$0();
+      next = t1.peekChar$0();
+      value = next === 39 || next === 34 ? _this.string$0() : _this.identifier$0();
+      _this.whitespace$0();
+      next = t1.peekChar$0();
+      modifier = next != null && A.CharacterExtension_get_isAlphabetic(next) ? A.Primitives_stringFromCharCode(t1.readChar$0()) : _null;
+      t1.expectChar$1(93);
+      return new A.AttributeSelector($name, operator, value, modifier, _this.spanFrom$1(start));
+    },
+    _attributeName$0() {
+      var nameOrNamespace, _this = this,
+        t1 = _this.scanner;
+      if (t1.scanChar$1(42)) {
+        t1.expectChar$1(124);
+        return new A.QualifiedName(_this.identifier$0(), "*");
+      }
+      if (t1.scanChar$1(124))
+        return new A.QualifiedName(_this.identifier$0(), "");
+      nameOrNamespace = _this.identifier$0();
+      if (t1.peekChar$0() !== 124 || t1.peekChar$1(1) === 61)
+        return new A.QualifiedName(nameOrNamespace, null);
+      t1.readChar$0();
+      return new A.QualifiedName(_this.identifier$0(), nameOrNamespace);
+    },
+    _attributeOperator$0() {
+      var t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      switch (t1.readChar$0()) {
+        case 61:
+          return B.AttributeOperator_4QF;
+        case 126:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_yT8;
+        case 124:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_jqB;
+        case 94:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_cMb;
+        case 36:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_qhE;
+        case 42:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_61T;
+        default:
+          t1.error$2$position(0, 'Expected "]".', t2);
+      }
+    },
+    _pseudoSelector$0() {
+      var element, $name, unvendored, selector, argument, t2, _this = this, _null = null,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(58);
+      element = t1.scanChar$1(58);
+      $name = _this.identifier$0();
+      if (!t1.scanChar$1(40))
+        return A.PseudoSelector$($name, _this.spanFrom$1(start), _null, element, _null);
+      _this.whitespace$0();
+      unvendored = A.unvendor($name);
+      if (element)
+        if ($._selectorPseudoElements.contains$1(0, unvendored)) {
+          selector = _this._selectorList$0();
+          argument = _null;
+        } else {
+          argument = _this.declarationValue$1$allowEmpty(true);
+          selector = _null;
+        }
+      else if ($._selectorPseudoClasses.contains$1(0, unvendored)) {
+        selector = _this._selectorList$0();
+        argument = _null;
+      } else if (unvendored === "nth-child" || unvendored === "nth-last-child") {
+        argument = _this._aNPlusB$0();
+        _this.whitespace$0();
+        t2 = t1.peekChar$1(-1);
+        if ((t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12) && t1.peekChar$0() !== 41) {
+          _this.expectIdentifier$1("of");
+          argument += " of";
+          _this.whitespace$0();
+          selector = _this._selectorList$0();
+        } else
+          selector = _null;
+      } else {
+        argument = B.JSString_methods.trimRight$0(_this.declarationValue$1$allowEmpty(true));
+        selector = _null;
+      }
+      t1.expectChar$1(41);
+      return A.PseudoSelector$($name, _this.spanFrom$1(start), argument, element, selector);
+    },
+    _aNPlusB$0() {
+      var t1, _0_0, t2, $self, next, _this = this;
+      $label0$0: {
+        t1 = _this.scanner;
+        _0_0 = t1.peekChar$0();
+        if (101 === _0_0 || 69 === _0_0) {
+          _this.expectIdentifier$1("even");
+          return "even";
+        }
+        if (111 === _0_0 || 79 === _0_0) {
+          _this.expectIdentifier$1("odd");
+          return "odd";
+        }
+        if (43 === _0_0 || 45 === _0_0) {
+          t2 = "" + A.Primitives_stringFromCharCode(t1.readChar$0());
+          break $label0$0;
+        }
+        t2 = "";
+      }
+      $self = t1.peekChar$0();
+      if ($self != null && $self >= 48 && $self <= 57) {
+        do {
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+          $self = t1.peekChar$0();
+        } while ($self != null && $self >= 48 && $self <= 57);
+        _this.whitespace$0();
+        if (!_this.scanIdentChar$1(110))
+          return t2.charCodeAt(0) == 0 ? t2 : t2;
+      } else
+        _this.expectIdentChar$1(110);
+      t2 += A.Primitives_stringFromCharCode(110);
+      _this.whitespace$0();
+      next = t1.peekChar$0();
+      if (next !== 43 && next !== 45)
+        return t2.charCodeAt(0) == 0 ? t2 : t2;
+      t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+      _this.whitespace$0();
+      $self = t1.peekChar$0();
+      if (!($self != null && $self >= 48 && $self <= 57))
+        t1.error$1(0, "Expected a number.");
+      do {
+        t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        $self = t1.peekChar$0();
+      } while ($self != null && $self >= 48 && $self <= 57);
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    },
+    _typeOrUniversalSelector$0() {
+      var nameOrNamespace, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (t1.scanChar$1(42)) {
+        if (!t1.scanChar$1(124))
+          return new A.UniversalSelector(null, _this.spanFrom$1(start));
+        return t1.scanChar$1(42) ? new A.UniversalSelector("*", _this.spanFrom$1(start)) : new A.TypeSelector(new A.QualifiedName(_this.identifier$0(), "*"), _this.spanFrom$1(start));
+      } else if (t1.scanChar$1(124))
+        return t1.scanChar$1(42) ? new A.UniversalSelector("", _this.spanFrom$1(start)) : new A.TypeSelector(new A.QualifiedName(_this.identifier$0(), ""), _this.spanFrom$1(start));
+      nameOrNamespace = _this.identifier$0();
+      if (!t1.scanChar$1(124))
+        return new A.TypeSelector(new A.QualifiedName(nameOrNamespace, null), _this.spanFrom$1(start));
+      else if (t1.scanChar$1(42))
+        return new A.UniversalSelector(nameOrNamespace, _this.spanFrom$1(start));
+      else
+        return new A.TypeSelector(new A.QualifiedName(_this.identifier$0(), nameOrNamespace), _this.spanFrom$1(start));
+    },
+    _isSimpleSelectorStart$1(character) {
+      var t1;
+      $label0$0: {
+        if (42 === character || 91 === character || 46 === character || 35 === character || 37 === character || 58 === character) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (38 === character) {
+          t1 = this._plainCss;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    }
+  };
+  A.SelectorParser_parse_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        selector = t1._selectorList$0();
+      t1 = t1.scanner;
+      if (t1._string_scanner$_position !== t1.string.length)
+        t1.error$1(0, "expected selector.");
+      return selector;
+    },
+    $signature: 500
+  };
+  A.SelectorParser_parseCompoundSelector_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        compound = t1._compoundSelector$0();
+      t1 = t1.scanner;
+      if (t1._string_scanner$_position !== t1.string.length)
+        t1.error$1(0, "expected selector.");
+      return compound;
+    },
+    $signature: 498
+  };
+  A.StylesheetParser.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.StylesheetParser_parse_closure(this));
+    },
+    parseArgumentDeclaration$0() {
+      return this._parseSingleProduction$1$1(new A.StylesheetParser_parseArgumentDeclaration_closure(this), type$.ArgumentDeclaration);
+    },
+    parseVariableDeclaration$0() {
+      return this._parseSingleProduction$1$1(new A.StylesheetParser_parseVariableDeclaration_closure(this), type$.VariableDeclaration);
+    },
+    parseUseRule$0() {
+      return this._parseSingleProduction$1$1(new A.StylesheetParser_parseUseRule_closure(this), type$.UseRule);
+    },
+    _parseSingleProduction$1$1(production, $T) {
+      return this.wrapSpanFormatException$1(new A.StylesheetParser__parseSingleProduction_closure(this, production, $T));
+    },
+    _statement$1$root(root) {
+      var t2, _this = this,
+        t1 = _this.scanner,
+        _0_0 = t1.peekChar$0();
+      if (64 === _0_0)
+        return _this.atRule$2$root(new A.StylesheetParser__statement_closure(_this), root);
+      if (43 === _0_0) {
+        if (!_this.get$indented() || !_this.lookingAtIdentifier$1(1))
+          return _this._styleRule$0();
+        _this._isUseAllowed = false;
+        t2 = t1._string_scanner$_position;
+        t1.readChar$0();
+        return _this._includeRule$1(new A._SpanScannerState(t1, t2));
+      }
+      if (61 === _0_0) {
+        if (!_this.get$indented())
+          return _this._styleRule$0();
+        _this._isUseAllowed = false;
+        t2 = t1._string_scanner$_position;
+        t1.readChar$0();
+        _this.whitespace$0();
+        return _this._mixinRule$1(new A._SpanScannerState(t1, t2));
+      }
+      if (125 === _0_0)
+        t1.error$2$length(0, 'unmatched "}".', 1);
+      return _this._inStyleRule || _this._stylesheet$_inUnknownAtRule || _this._stylesheet$_inMixin || _this._inContentBlock ? _this._declarationOrStyleRule$0() : _this._variableDeclarationOrStyleRule$0();
+    },
+    _statement$0() {
+      return this._statement$1$root(false);
+    },
+    _variableDeclarationWithNamespace$0() {
+      var t1 = this.scanner,
+        t2 = t1._string_scanner$_position,
+        namespace = this.identifier$0();
+      t1.expectChar$1(46);
+      return this.variableDeclarationWithoutNamespace$2(namespace, new A._SpanScannerState(t1, t2));
+    },
+    variableDeclarationWithoutNamespace$2(namespace, start_) {
+      var t1, start, $name, t2, value, flagStart, t3, guarded, global, _0_0, endPosition, t4, t5, t6, declaration, _this = this,
+        precedingComment = _this.lastSilentComment;
+      _this.lastSilentComment = null;
+      if (start_ == null) {
+        t1 = _this.scanner;
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      } else
+        start = start_;
+      $name = _this.variableName$0();
+      t1 = namespace != null;
+      if (t1)
+        _this._assertPublic$2($name, new A.StylesheetParser_variableDeclarationWithoutNamespace_closure(_this, start));
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Sass_v, _this.scanner.spanFrom$1(start));
+      _this.whitespace$0();
+      t2 = _this.scanner;
+      t2.expectChar$1(58);
+      _this.whitespace$0();
+      value = _this._expression$0();
+      flagStart = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      for (t3 = _this.logger, guarded = false, global = false; t2.scanChar$1(33);) {
+        $label0$0: {
+          _0_0 = _this.identifier$0();
+          if ("default" === _0_0) {
+            if (guarded) {
+              endPosition = t2._string_scanner$_position;
+              t4 = t2._sourceFile;
+              t5 = flagStart.position;
+              t6 = new A._FileSpan(t4, t5, endPosition);
+              t6._FileSpan$3(t4, t5, endPosition);
+              A.WarnForDeprecation_warnForDeprecation(t3, B.Deprecation_zrt, string$.x21defau, t6, null);
+            }
+            guarded = true;
+            break $label0$0;
+          }
+          if ("global" === _0_0) {
+            if (t1) {
+              endPosition = t2._string_scanner$_position;
+              t4 = t2._sourceFile;
+              t5 = flagStart.position;
+              t6 = new A._FileSpan(t4, t5, endPosition);
+              t6._FileSpan$3(t4, t5, endPosition);
+              _this.error$2(0, string$.x21globai, t6);
+            } else if (global) {
+              endPosition = t2._string_scanner$_position;
+              t4 = t2._sourceFile;
+              t5 = flagStart.position;
+              t6 = new A._FileSpan(t4, t5, endPosition);
+              t6._FileSpan$3(t4, t5, endPosition);
+              A.WarnForDeprecation_warnForDeprecation(t3, B.Deprecation_zrt, string$.x21globas, t6, null);
+            }
+            global = true;
+            break $label0$0;
+          }
+          endPosition = t2._string_scanner$_position;
+          t4 = t2._sourceFile;
+          t5 = flagStart.position;
+          t6 = new A._FileSpan(t4, t5, endPosition);
+          t6._FileSpan$3(t4, t5, endPosition);
+          _this.error$2(0, "Invalid flag name.", t6);
+        }
+        _this.whitespace$0();
+        flagStart = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      }
+      _this.expectStatementSeparator$1("variable declaration");
+      declaration = A.VariableDeclaration$($name, value, t2.spanFrom$1(start), precedingComment, global, guarded, namespace);
+      if (global)
+        _this._globalVariables.putIfAbsent$2($name, new A.StylesheetParser_variableDeclarationWithoutNamespace_closure0(declaration));
+      return declaration;
+    },
+    variableDeclarationWithoutNamespace$0() {
+      return this.variableDeclarationWithoutNamespace$2(null, null);
+    },
+    _variableDeclarationOrStyleRule$0() {
+      var t1, t2, variableOrInterpolation, t3, _this = this;
+      if (_this.get$plainCss())
+        return _this._styleRule$0();
+      if (_this.get$indented() && _this.scanner.scanChar$1(92))
+        return _this._styleRule$0();
+      if (!_this.lookingAtIdentifier$0())
+        return _this._styleRule$0();
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      variableOrInterpolation = _this._variableDeclarationOrInterpolation$0();
+      if (variableOrInterpolation instanceof A.VariableDeclaration)
+        t1 = variableOrInterpolation;
+      else {
+        t3 = new A.InterpolationBuffer(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Object));
+        t3.addInterpolation$1(type$.Interpolation._as(variableOrInterpolation));
+        t2 = _this._styleRule$2(t3, new A._SpanScannerState(t1, t2));
+        t1 = t2;
+      }
+      return t1;
+    },
+    _declarationOrStyleRule$0() {
+      var t1, t2, declarationOrBuffer, _this = this;
+      if (_this.get$indented() && _this.scanner.scanChar$1(92))
+        return _this._styleRule$0();
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      declarationOrBuffer = _this._declarationOrBuffer$0();
+      return type$.Statement._is(declarationOrBuffer) ? declarationOrBuffer : _this._styleRule$2(type$.InterpolationBuffer._as(declarationOrBuffer), new A._SpanScannerState(t1, t2));
+    },
+    _declarationOrBuffer$0() {
+      var midBuffer, couldBeSelector, beforeDeclaration, value, additional, t2, t3, variableOrInterpolation, t4, t5, $name, postColonWhitespace, _0_0, exception, _1_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        nameBuffer = new A.InterpolationBuffer(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Object)),
+        startsWithPunctuation = _this._lookingAtPotentialPropertyHack$0();
+      if (startsWithPunctuation) {
+        t2 = t1.readChar$0();
+        t3 = nameBuffer._interpolation_buffer$_text;
+        t2 = A.Primitives_stringFromCharCode(t2);
+        t3._contents += t2;
+        t2 = _this.rawText$1(_this.get$whitespace());
+        t3 = nameBuffer._interpolation_buffer$_text;
+        t3._contents += t2;
+      }
+      if (!_this._lookingAtInterpolatedIdentifier$0())
+        return nameBuffer;
+      variableOrInterpolation = startsWithPunctuation ? _this.interpolatedIdentifier$0() : _this._variableDeclarationOrInterpolation$0();
+      if (variableOrInterpolation instanceof A.VariableDeclaration)
+        return variableOrInterpolation;
+      else
+        nameBuffer.addInterpolation$1(type$.Interpolation._as(variableOrInterpolation));
+      _this._isUseAllowed = false;
+      if (t1.matches$1("/*")) {
+        t2 = _this.rawText$1(_this.get$loudComment());
+        t3 = nameBuffer._interpolation_buffer$_text;
+        t3._contents += t2;
+      }
+      midBuffer = new A.StringBuffer("");
+      t2 = midBuffer;
+      t3 = _this.get$whitespace();
+      t4 = _this.rawText$1(t3);
+      t2._contents += t4;
+      t4 = t1._string_scanner$_position;
+      if (!t1.scanChar$1(58)) {
+        if (midBuffer._contents.length !== 0) {
+          t1 = nameBuffer._interpolation_buffer$_text;
+          t2 = A.Primitives_stringFromCharCode(32);
+          t1._contents += t2;
+        }
+        return nameBuffer;
+      }
+      t2 = midBuffer;
+      t5 = A.Primitives_stringFromCharCode(58);
+      t2._contents += t5;
+      $name = nameBuffer.interpolation$1(t1.spanFrom$2(start, new A._SpanScannerState(t1, t4)));
+      if (B.JSString_methods.startsWith$1($name.get$initialPlain(), "--")) {
+        t2 = _this._interpolatedDeclarationValue$0();
+        _this.expectStatementSeparator$1("custom property");
+        return A.Declaration$($name, new A.StringExpression(t2, false), t1.spanFrom$1(start));
+      }
+      if (t1.scanChar$1(58)) {
+        t1 = nameBuffer;
+        t2 = t1._interpolation_buffer$_text;
+        t3 = A.S(midBuffer);
+        t2._contents += t3;
+        t3 = A.Primitives_stringFromCharCode(58);
+        t2._contents += t3;
+        return t1;
+      } else if (_this.get$indented() && _this._lookingAtInterpolatedIdentifier$0()) {
+        t1 = nameBuffer;
+        t2 = t1._interpolation_buffer$_text;
+        t3 = A.S(midBuffer);
+        t2._contents += t3;
+        return t1;
+      }
+      postColonWhitespace = _this.rawText$1(t3);
+      _0_0 = _this._tryDeclarationChildren$2($name, start);
+      if (_0_0 != null)
+        return _0_0;
+      midBuffer._contents += postColonWhitespace;
+      couldBeSelector = postColonWhitespace.length === 0 && _this._lookingAtInterpolatedIdentifier$0();
+      beforeDeclaration = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      value = null;
+      try {
+        value = _this._expression$0();
+        if (_this.lookingAtChildren$0()) {
+          if (couldBeSelector)
+            _this.expectStatementSeparator$0();
+        } else if (!_this.atEndOfStatement$0())
+          _this.expectStatementSeparator$0();
+      } catch (exception) {
+        if (type$.FormatException._is(A.unwrapException(exception))) {
+          if (!couldBeSelector)
+            throw exception;
+          t1.set$state(beforeDeclaration);
+          additional = _this.almostAnyValue$0();
+          if (!_this.get$indented() && t1.peekChar$0() === 59)
+            throw exception;
+          t1 = nameBuffer._interpolation_buffer$_text;
+          t2 = A.S(midBuffer);
+          t1._contents += t2;
+          nameBuffer.addInterpolation$1(additional);
+          return nameBuffer;
+        } else
+          throw exception;
+      }
+      _1_0 = _this._tryDeclarationChildren$3$value($name, start, value);
+      if (_1_0 != null)
+        return _1_0;
+      else {
+        _this.expectStatementSeparator$0();
+        return A.Declaration$($name, value, t1.spanFrom$1(start));
+      }
+    },
+    _variableDeclarationOrInterpolation$0() {
+      var t1, start, identifier, t2, buffer, _this = this;
+      if (!_this.lookingAtIdentifier$0())
+        return _this.interpolatedIdentifier$0();
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      identifier = _this.identifier$0();
+      if (t1.matches$1(".$")) {
+        t1.readChar$0();
+        return _this.variableDeclarationWithoutNamespace$2(identifier, start);
+      } else {
+        t2 = new A.StringBuffer("");
+        buffer = new A.InterpolationBuffer(t2, A._setArrayType([], type$.JSArray_Object));
+        t2._contents = "" + identifier;
+        if (_this._lookingAtInterpolatedIdentifierBody$0())
+          buffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+        return buffer.interpolation$1(t1.spanFrom$1(start));
+      }
+    },
+    _styleRule$2(buffer, start_) {
+      var t2, start, interpolation, wasInStyleRule, _this = this, t1 = {};
+      _this._isUseAllowed = false;
+      if (start_ == null) {
+        t2 = _this.scanner;
+        start = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      } else
+        start = start_;
+      interpolation = t1.interpolation = _this.styleRuleSelector$0();
+      if (buffer != null) {
+        buffer.addInterpolation$1(interpolation);
+        t2 = t1.interpolation = buffer.interpolation$1(_this.scanner.spanFrom$1(start));
+      } else
+        t2 = interpolation;
+      if (t2.contents.length === 0)
+        _this.scanner.error$1(0, 'expected "}".');
+      wasInStyleRule = _this._inStyleRule;
+      _this._inStyleRule = true;
+      return _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser__styleRule_closure(t1, _this, wasInStyleRule, start));
+    },
+    _styleRule$0() {
+      return this._styleRule$2(null, null);
+    },
+    _propertyOrVariableDeclaration$1$parseCustomProperties(parseCustomProperties) {
+      var t2, nameBuffer, t3, $name, variableOrInterpolation, _0_0, value, _1_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (_this._lookingAtPotentialPropertyHack$0()) {
+        t2 = new A.StringBuffer("");
+        nameBuffer = new A.InterpolationBuffer(t2, A._setArrayType([], type$.JSArray_Object));
+        t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+        t2._contents += t3;
+        t3 = _this.rawText$1(_this.get$whitespace());
+        t2._contents += t3;
+        nameBuffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+        $name = nameBuffer.interpolation$1(t1.spanFrom$1(start));
+      } else if (!_this.get$plainCss()) {
+        variableOrInterpolation = _this._variableDeclarationOrInterpolation$0();
+        if (variableOrInterpolation instanceof A.VariableDeclaration)
+          return variableOrInterpolation;
+        else
+          type$.Interpolation._as(variableOrInterpolation);
+        $name = variableOrInterpolation;
+      } else
+        $name = _this.interpolatedIdentifier$0();
+      _this.whitespace$0();
+      t1.expectChar$1(58);
+      _this.whitespace$0();
+      _0_0 = _this._tryDeclarationChildren$2($name, start);
+      if (_0_0 != null)
+        return _0_0;
+      value = _this._expression$0();
+      _1_0 = _this._tryDeclarationChildren$3$value($name, start, value);
+      if (_1_0 != null)
+        return _1_0;
+      else {
+        _this.expectStatementSeparator$0();
+        return A.Declaration$($name, value, t1.spanFrom$1(start));
+      }
+    },
+    _tryDeclarationChildren$3$value($name, start, value) {
+      var _this = this;
+      if (!_this.lookingAtChildren$0())
+        return null;
+      if (_this.get$plainCss())
+        _this.scanner.error$1(0, string$.Nested);
+      return _this._withChildren$3(_this.get$_declarationChild(), start, new A.StylesheetParser__tryDeclarationChildren_closure($name, value));
+    },
+    _tryDeclarationChildren$2($name, start) {
+      return this._tryDeclarationChildren$3$value($name, start, null);
+    },
+    _declarationChild$0() {
+      return this.scanner.peekChar$0() === 64 ? this._declarationAtRule$0() : this._propertyOrVariableDeclaration$1$parseCustomProperties(false);
+    },
+    atRule$2$root(child, root) {
+      var $name, wasUseAllowed, value, optional, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$2$name(64, "@-rule");
+      $name = _this.interpolatedIdentifier$0();
+      _this.whitespace$0();
+      wasUseAllowed = _this._isUseAllowed;
+      _this._isUseAllowed = false;
+      switch ($name.get$asPlain()) {
+        case "at-root":
+          return _this._atRootRule$1(start);
+        case "content":
+          return _this._contentRule$1(start);
+        case "debug":
+          return _this._debugRule$1(start);
+        case "each":
+          return _this._eachRule$2(start, child);
+        case "else":
+          return _this._disallowedAtRule$1(start);
+        case "error":
+          return _this._errorRule$1(start);
+        case "extend":
+          if (!_this._inStyleRule && !_this._stylesheet$_inMixin && !_this._inContentBlock)
+            _this.error$2(0, string$.x40exten, t1.spanFrom$1(start));
+          value = _this.almostAnyValue$0();
+          optional = t1.scanChar$1(33);
+          if (optional)
+            _this.expectIdentifier$1("optional");
+          _this.expectStatementSeparator$1("@extend rule");
+          return new A.ExtendRule(value, optional, t1.spanFrom$1(start));
+        case "for":
+          return _this._forRule$2(start, child);
+        case "forward":
+          _this._isUseAllowed = wasUseAllowed;
+          if (!root)
+            _this._disallowedAtRule$1(start);
+          return _this._forwardRule$1(start);
+        case "function":
+          return _this._functionRule$1(start);
+        case "if":
+          return _this._ifRule$2(start, child);
+        case "import":
+          return _this._importRule$1(start);
+        case "include":
+          return _this._includeRule$1(start);
+        case "media":
+          return _this.mediaRule$1(start);
+        case "mixin":
+          return _this._mixinRule$1(start);
+        case "-moz-document":
+          return _this.mozDocumentRule$2(start, $name);
+        case "return":
+          return _this._disallowedAtRule$1(start);
+        case "supports":
+          return _this.supportsRule$1(start);
+        case "use":
+          _this._isUseAllowed = wasUseAllowed;
+          if (!root)
+            _this._disallowedAtRule$1(start);
+          return _this._useRule$1(start);
+        case "warn":
+          return _this._warnRule$1(start);
+        case "while":
+          return _this._whileRule$2(start, child);
+        default:
+          return _this.unknownAtRule$2(start, $name);
+      }
+    },
+    _declarationAtRule$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        _0_0 = _this._plainAtRuleName$0();
+      $label0$0: {
+        if ("content" === _0_0) {
+          t1 = _this._contentRule$1(start);
+          break $label0$0;
+        }
+        if ("debug" === _0_0) {
+          t1 = _this._debugRule$1(start);
+          break $label0$0;
+        }
+        if ("each" === _0_0) {
+          t1 = _this._eachRule$2(start, _this.get$_declarationChild());
+          break $label0$0;
+        }
+        if ("else" === _0_0)
+          _this._disallowedAtRule$1(start);
+        if ("error" === _0_0) {
+          t1 = _this._errorRule$1(start);
+          break $label0$0;
+        }
+        if ("for" === _0_0) {
+          t1 = _this._forRule$2(start, _this.get$_declarationChild());
+          break $label0$0;
+        }
+        if ("if" === _0_0) {
+          t1 = _this._ifRule$2(start, _this.get$_declarationChild());
+          break $label0$0;
+        }
+        if ("include" === _0_0) {
+          t1 = _this._includeRule$1(start);
+          break $label0$0;
+        }
+        if ("warn" === _0_0) {
+          t1 = _this._warnRule$1(start);
+          break $label0$0;
+        }
+        if ("while" === _0_0) {
+          t1 = _this._whileRule$2(start, _this.get$_declarationChild());
+          break $label0$0;
+        }
+        t1 = _this._disallowedAtRule$1(start);
+      }
+      return t1;
+    },
+    _functionChild$0() {
+      var state, variableDeclarationError, stackTrace, statement, t2, exception, t3, start, _0_0, value, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$0() !== 64) {
+        state = new A._SpanScannerState(t1, t1._string_scanner$_position);
+        try {
+          t2 = _this._variableDeclarationWithNamespace$0();
+          return t2;
+        } catch (exception) {
+          t2 = A.unwrapException(exception);
+          t3 = type$.SourceSpanFormatException;
+          if (t3._is(t2)) {
+            variableDeclarationError = t2;
+            stackTrace = A.getTraceFromException(exception);
+            t1.set$state(state);
+            statement = null;
+            try {
+              statement = _this._declarationOrStyleRule$0();
+            } catch (exception) {
+              if (t3._is(A.unwrapException(exception)))
+                throw A.wrapException(variableDeclarationError);
+              else
+                throw exception;
+            }
+            t2 = statement instanceof A.StyleRule ? "style rules" : "declarations";
+            _this.error$3(0, "@function rules may not contain " + t2 + ".", J.get$span$z(statement), stackTrace);
+          } else
+            throw exception;
+        }
+      }
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _0_0 = _this._plainAtRuleName$0();
+      $label0$0: {
+        if ("debug" === _0_0) {
+          t1 = _this._debugRule$1(start);
+          break $label0$0;
+        }
+        if ("each" === _0_0) {
+          t1 = _this._eachRule$2(start, _this.get$_functionChild());
+          break $label0$0;
+        }
+        if ("else" === _0_0)
+          _this._disallowedAtRule$1(start);
+        if ("error" === _0_0) {
+          t1 = _this._errorRule$1(start);
+          break $label0$0;
+        }
+        if ("for" === _0_0) {
+          t1 = _this._forRule$2(start, _this.get$_functionChild());
+          break $label0$0;
+        }
+        if ("if" === _0_0) {
+          t1 = _this._ifRule$2(start, _this.get$_functionChild());
+          break $label0$0;
+        }
+        if ("return" === _0_0) {
+          value = _this._expression$0();
+          _this.expectStatementSeparator$1("@return rule");
+          t1 = new A.ReturnRule(value, t1.spanFrom$1(start));
+          break $label0$0;
+        }
+        if ("warn" === _0_0) {
+          t1 = _this._warnRule$1(start);
+          break $label0$0;
+        }
+        if ("while" === _0_0) {
+          t1 = _this._whileRule$2(start, _this.get$_functionChild());
+          break $label0$0;
+        }
+        t1 = _this._disallowedAtRule$1(start);
+      }
+      return t1;
+    },
+    _plainAtRuleName$0() {
+      this.scanner.expectChar$2$name(64, "@-rule");
+      var $name = this.identifier$0();
+      this.whitespace$0();
+      return $name;
+    },
+    _atRootRule$1(start) {
+      var t2, t3, t4, buffer, t5, query, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$0() === 40) {
+        t2 = t1._string_scanner$_position;
+        t3 = new A.StringBuffer("");
+        t4 = A._setArrayType([], type$.JSArray_Object);
+        buffer = new A.InterpolationBuffer(t3, t4);
+        t1.expectChar$1(40);
+        t5 = A.Primitives_stringFromCharCode(40);
+        t3._contents += t5;
+        _this.whitespace$0();
+        t5 = _this._expression$0();
+        buffer._flushText$0();
+        t4.push(t5);
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t5 = A.Primitives_stringFromCharCode(58);
+          t3._contents += t5;
+          t5 = A.Primitives_stringFromCharCode(32);
+          t3._contents += t5;
+          t5 = _this._expression$0();
+          buffer._flushText$0();
+          t4.push(t5);
+        }
+        t1.expectChar$1(41);
+        _this.whitespace$0();
+        t4 = A.Primitives_stringFromCharCode(41);
+        t3._contents += t4;
+        query = buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+        _this.whitespace$0();
+        return _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser__atRootRule_closure(query));
+      } else if (_this.lookingAtChildren$0())
+        return _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser__atRootRule_closure0());
+      else
+        return A.AtRootRule$(A._setArrayType([_this._styleRule$0()], type$.JSArray_Statement), t1.spanFrom$1(start), null);
+    },
+    _contentRule$1(start) {
+      var t1, $arguments, t2, t3, _this = this;
+      if (!_this._stylesheet$_inMixin)
+        _this.error$2(0, string$.x40conte, _this.scanner.spanFrom$1(start));
+      _this.whitespace$0();
+      t1 = _this.scanner;
+      if (t1.peekChar$0() === 40)
+        $arguments = _this._argumentInvocation$1$mixin(true);
+      else {
+        t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = A.ArgumentInvocation$empty(A._FileSpan$(t2.file, t3, t3));
+      }
+      _this.expectStatementSeparator$1("@content rule");
+      return new A.ContentRule($arguments, t1.spanFrom$1(start));
+    },
+    _debugRule$1(start) {
+      var value = this._expression$0();
+      this.expectStatementSeparator$1("@debug rule");
+      return new A.DebugRule(value, this.scanner.spanFrom$1(start));
+    },
+    _eachRule$2(start, child) {
+      var variables, t1, _this = this,
+        wasInControlDirective = _this._inControlDirective;
+      _this._inControlDirective = true;
+      variables = A._setArrayType([_this.variableName$0()], type$.JSArray_String);
+      _this.whitespace$0();
+      for (t1 = _this.scanner; t1.scanChar$1(44);) {
+        _this.whitespace$0();
+        t1.expectChar$1(36);
+        variables.push(_this.identifier$1$normalize(true));
+        _this.whitespace$0();
+      }
+      _this.expectIdentifier$1("in");
+      _this.whitespace$0();
+      return _this._withChildren$3(child, start, new A.StylesheetParser__eachRule_closure(_this, wasInControlDirective, variables, _this._expression$0()));
+    },
+    _errorRule$1(start) {
+      var value = this._expression$0();
+      this.expectStatementSeparator$1("@error rule");
+      return new A.ErrorRule(value, this.scanner.spanFrom$1(start));
+    },
+    _functionRule$1(start) {
+      var t1, t2, $name, $arguments, _0_0, _this = this,
+        precedingComment = _this.lastSilentComment;
+      _this.lastSilentComment = null;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      $name = _this.identifier$0();
+      if (B.JSString_methods.startsWith$1($name, "--"))
+        A.WarnForDeprecation_warnForDeprecation(_this.logger, B.Deprecation_HJ0, string$.Sass__fm, t1.spanFrom$1(new A._SpanScannerState(t1, t2)), null);
+      _this.whitespace$0();
+      $arguments = _this._argumentDeclaration$0();
+      if (_this._stylesheet$_inMixin || _this._inContentBlock)
+        _this.error$2(0, string$.Mixinscf, t1.spanFrom$1(start));
+      else if (_this._inControlDirective)
+        _this.error$2(0, string$.Functi, t1.spanFrom$1(start));
+      _0_0 = A.unvendor($name);
+      if ("calc" === _0_0 || "element" === _0_0 || "expression" === _0_0 || "url" === _0_0 || "and" === _0_0 || "or" === _0_0 || "not" === _0_0 || "clamp" === _0_0)
+        _this.error$2(0, "Invalid function name.", t1.spanFrom$1(start));
+      _this.whitespace$0();
+      return _this._withChildren$3(_this.get$_functionChild(), start, new A.StylesheetParser__functionRule_closure($name, $arguments, precedingComment));
+    },
+    _forRule$2(start, child) {
+      var variable, from, _this = this, t1 = {},
+        wasInControlDirective = _this._inControlDirective;
+      _this._inControlDirective = true;
+      variable = _this.variableName$0();
+      _this.whitespace$0();
+      _this.expectIdentifier$1("from");
+      _this.whitespace$0();
+      t1.exclusive = null;
+      from = _this._expression$1$until(new A.StylesheetParser__forRule_closure(t1, _this));
+      if (t1.exclusive == null)
+        _this.scanner.error$1(0, 'Expected "to" or "through".');
+      _this.whitespace$0();
+      return _this._withChildren$3(child, start, new A.StylesheetParser__forRule_closure0(t1, _this, wasInControlDirective, variable, from, _this._expression$0()));
+    },
+    _forwardRule$1(start) {
+      var prefix, _0_0, shownMixinsAndFunctions, shownVariables, hiddenVariables, hiddenMixinsAndFunctions, _1_0, configuration, span, t1, t2, t3, t4, _this = this, _null = null,
+        url = _this._urlString$0();
+      _this.whitespace$0();
+      if (_this.scanIdentifier$1("as")) {
+        _this.whitespace$0();
+        prefix = _this.identifier$1$normalize(true);
+        _this.scanner.expectChar$1(42);
+        _this.whitespace$0();
+      } else
+        prefix = _null;
+      if (_this.scanIdentifier$1("show")) {
+        _0_0 = _this._memberList$0();
+        shownMixinsAndFunctions = _0_0._0;
+        shownVariables = _0_0._1;
+        hiddenVariables = _null;
+        hiddenMixinsAndFunctions = hiddenVariables;
+      } else {
+        if (_this.scanIdentifier$1("hide")) {
+          _1_0 = _this._memberList$0();
+          hiddenMixinsAndFunctions = _1_0._0;
+          hiddenVariables = _1_0._1;
+        } else {
+          hiddenVariables = _null;
+          hiddenMixinsAndFunctions = hiddenVariables;
+        }
+        shownVariables = _null;
+        shownMixinsAndFunctions = shownVariables;
+      }
+      configuration = _this._stylesheet$_configuration$1$allowGuarded(true);
+      _this.expectStatementSeparator$1("@forward rule");
+      span = _this.scanner.spanFrom$1(start);
+      if (!_this._isUseAllowed)
+        _this.error$2(0, string$.x40forwa, span);
+      if (shownMixinsAndFunctions != null) {
+        shownVariables.toString;
+        t1 = type$.String;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(shownMixinsAndFunctions, t1);
+        t3 = type$.UnmodifiableSetView_String;
+        t1 = A.LinkedHashSet_LinkedHashSet$of(shownVariables, t1);
+        t4 = configuration == null ? B.List_empty10 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable);
+        return new A.ForwardRule(url, new A.UnmodifiableSetView0(t2, t3), new A.UnmodifiableSetView0(t1, t3), _null, _null, prefix, t4, span);
+      } else if (hiddenMixinsAndFunctions != null) {
+        hiddenVariables.toString;
+        t1 = type$.String;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(hiddenMixinsAndFunctions, t1);
+        t3 = type$.UnmodifiableSetView_String;
+        t1 = A.LinkedHashSet_LinkedHashSet$of(hiddenVariables, t1);
+        t4 = configuration == null ? B.List_empty10 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable);
+        return new A.ForwardRule(url, _null, _null, new A.UnmodifiableSetView0(t2, t3), new A.UnmodifiableSetView0(t1, t3), prefix, t4, span);
+      } else
+        return new A.ForwardRule(url, _null, _null, _null, _null, prefix, configuration == null ? B.List_empty10 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable), span);
+    },
+    _memberList$0() {
+      var _this = this,
+        t1 = type$.String,
+        identifiers = A.LinkedHashSet_LinkedHashSet$_empty(t1),
+        variables = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      t1 = _this.scanner;
+      do {
+        _this.whitespace$0();
+        _this.withErrorMessage$2(string$.Expect, new A.StylesheetParser__memberList_closure(_this, variables, identifiers));
+        _this.whitespace$0();
+      } while (t1.scanChar$1(44));
+      return new A._Record_2(identifiers, variables);
+    },
+    _ifRule$2(start, child) {
+      var condition, children, clauses, lastClause, span, _this = this,
+        ifIndentation = _this.get$currentIndentation(),
+        wasInControlDirective = _this._inControlDirective;
+      _this._inControlDirective = true;
+      condition = _this._expression$0();
+      children = _this.children$1(0, child);
+      _this.whitespaceWithoutComments$0();
+      clauses = A._setArrayType([A.IfClause$(condition, children)], type$.JSArray_IfClause);
+      while (true) {
+        if (!_this.scanElse$1(ifIndentation)) {
+          lastClause = null;
+          break;
+        }
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1("if")) {
+          _this.whitespace$0();
+          clauses.push(A.IfClause$(_this._expression$0(), _this.children$1(0, child)));
+        } else {
+          lastClause = A.ElseClause$(_this.children$1(0, child));
+          break;
+        }
+      }
+      _this._inControlDirective = wasInControlDirective;
+      span = _this.scanner.spanFrom$1(start);
+      _this.whitespaceWithoutComments$0();
+      return new A.IfRule(A.List_List$unmodifiable(clauses, type$.IfClause), lastClause, span);
+    },
+    _importRule$1(start) {
+      var argument, t3, _this = this,
+        imports = A._setArrayType([], type$.JSArray_Import),
+        t1 = _this.scanner,
+        t2 = _this.logger;
+      do {
+        _this.whitespace$0();
+        argument = _this.importArgument$0();
+        t3 = argument instanceof A.DynamicImport;
+        if (t3)
+          A.WarnForDeprecation_warnForDeprecation(t2, B.Deprecation_import_null_true_import, string$.Sass__i, argument.span, null);
+        if ((_this._inControlDirective || _this._stylesheet$_inMixin) && t3)
+          _this._disallowedAtRule$1(start);
+        imports.push(argument);
+        _this.whitespace$0();
+      } while (t1.scanChar$1(44));
+      _this.expectStatementSeparator$1("@import rule");
+      t1 = t1.spanFrom$1(start);
+      return new A.ImportRule(A.List_List$unmodifiable(imports, type$.Import), t1);
+    },
+    importArgument$0() {
+      var url, urlSpan, innerError, stackTrace, modifiers, t2, exception, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        _0_0 = t1.peekChar$0();
+      if (117 === _0_0 || 85 === _0_0) {
+        url = _this.dynamicUrl$0();
+        _this.whitespace$0();
+        modifiers = _this.tryImportModifiers$0();
+        return new A.StaticImport(A.Interpolation$(A._setArrayType([url], type$.JSArray_Object), t1.spanFrom$1(start)), modifiers, t1.spanFrom$1(start));
+      }
+      url = _this.string$0();
+      urlSpan = t1.spanFrom$1(start);
+      _this.whitespace$0();
+      modifiers = _this.tryImportModifiers$0();
+      if (_this.isPlainImportUrl$1(url) || modifiers != null) {
+        t2 = urlSpan;
+        return new A.StaticImport(A.Interpolation$(A._setArrayType([A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2.file._decodedChars, t2._file$_start, t2._end), 0, null)], type$.JSArray_Object), urlSpan), modifiers, t1.spanFrom$1(start));
+      } else
+        try {
+          t1 = _this.parseImportUrl$1(url);
+          return new A.DynamicImport(t1, urlSpan);
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (type$.FormatException._is(t1)) {
+            innerError = t1;
+            stackTrace = A.getTraceFromException(exception);
+            _this.error$3(0, "Invalid URL: " + J.get$message$x(innerError), urlSpan, stackTrace);
+          } else
+            throw exception;
+        }
+    },
+    parseImportUrl$1(url) {
+      var t1 = $.$get$windows();
+      if (t1.style.rootLength$1(url) > 0 && !$.$get$url().style.isRootRelative$1(url))
+        return t1.toUri$1(url).toString$0(0);
+      A.Uri_parse(url);
+      return url;
+    },
+    isPlainImportUrl$1(url) {
+      var _0_0, t1;
+      if (url.length < 5)
+        return false;
+      if (B.JSString_methods.endsWith$1(url, ".css"))
+        return true;
+      _0_0 = url.charCodeAt(0);
+      $label0$0: {
+        if (47 === _0_0) {
+          t1 = url.charCodeAt(1) === 47;
+          break $label0$0;
+        }
+        if (104 === _0_0) {
+          t1 = B.JSString_methods.startsWith$1(url, "http://") || B.JSString_methods.startsWith$1(url, "https://");
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    tryImportModifiers$0() {
+      var t1, start, t2, t3, buffer, t4, identifier, $name, query, t5, endPosition, result, _this = this;
+      if (!_this._lookingAtInterpolatedIdentifier$0() && _this.scanner.peekChar$0() !== 40)
+        return null;
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t2 = new A.StringBuffer("");
+      t3 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer(t2, t3);
+      for (; true;)
+        if (_this._lookingAtInterpolatedIdentifier$0()) {
+          if (!(t3.length === 0 && t2._contents.length === 0)) {
+            t4 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t4;
+          }
+          identifier = _this.interpolatedIdentifier$0();
+          buffer.addInterpolation$1(identifier);
+          t4 = identifier.get$asPlain();
+          $name = t4 == null ? null : t4.toLowerCase();
+          if ($name !== "and" && t1.scanChar$1(40)) {
+            if ($name === "supports") {
+              query = _this._importSupportsQuery$0();
+              t4 = !(query instanceof A.SupportsDeclaration);
+              if (t4) {
+                t5 = A.Primitives_stringFromCharCode(40);
+                t2._contents += t5;
+              }
+              buffer._flushText$0();
+              t3.push(new A.SupportsExpression(query));
+              if (t4) {
+                t4 = A.Primitives_stringFromCharCode(41);
+                t2._contents += t4;
+              }
+            } else {
+              t4 = A.Primitives_stringFromCharCode(40);
+              t2._contents += t4;
+              buffer.addInterpolation$1(_this._interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(true, true));
+              t4 = A.Primitives_stringFromCharCode(41);
+              t2._contents += t4;
+            }
+            t1.expectChar$1(41);
+            _this.whitespace$0();
+          } else {
+            _this.whitespace$0();
+            if (t1.scanChar$1(44)) {
+              t2._contents += ", ";
+              buffer.addInterpolation$1(_this._mediaQueryList$0());
+              endPosition = t1._string_scanner$_position;
+              t4 = t1._sourceFile;
+              t5 = start.position;
+              t1 = new A._FileSpan(t4, t5, endPosition);
+              t1._FileSpan$3(t4, t5, endPosition);
+              t5 = type$.Object;
+              t4 = A.List_List$of(t3, true, t5);
+              t3 = t2._contents;
+              if (t3.length !== 0)
+                t4.push(t3.charCodeAt(0) == 0 ? t3 : t3);
+              result = A.List_List$from(t4, false, t5);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t2 = new A.Interpolation(result, t1);
+              t2.Interpolation$2(t4, t1);
+              return t2;
+            }
+          }
+        } else if (t1.peekChar$0() === 40) {
+          if (!(t3.length === 0 && t2._contents.length === 0)) {
+            t4 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t4;
+          }
+          buffer.addInterpolation$1(_this._mediaQueryList$0());
+          endPosition = t1._string_scanner$_position;
+          t1 = t1._sourceFile;
+          t4 = start.position;
+          t5 = new A._FileSpan(t1, t4, endPosition);
+          t5._FileSpan$3(t1, t4, endPosition);
+          t4 = type$.Object;
+          t3 = A.List_List$of(t3, true, t4);
+          t1 = t2._contents;
+          if (t1.length !== 0)
+            t3.push(t1.charCodeAt(0) == 0 ? t1 : t1);
+          result = A.List_List$from(t3, false, t4);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t1 = new A.Interpolation(result, t5);
+          t1.Interpolation$2(t3, t5);
+          return t1;
+        } else {
+          endPosition = t1._string_scanner$_position;
+          t1 = t1._sourceFile;
+          t4 = start.position;
+          t5 = new A._FileSpan(t1, t4, endPosition);
+          t5._FileSpan$3(t1, t4, endPosition);
+          t4 = type$.Object;
+          t3 = A.List_List$of(t3, true, t4);
+          t1 = t2._contents;
+          if (t1.length !== 0)
+            t3.push(t1.charCodeAt(0) == 0 ? t1 : t1);
+          result = A.List_List$from(t3, false, t4);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t1 = new A.Interpolation(result, t5);
+          t1.Interpolation$2(t3, t5);
+          return t1;
+        }
+    },
+    _importSupportsQuery$0() {
+      var t1, t2, _0_0, $name, _this = this;
+      if (_this.scanIdentifier$1("not")) {
+        _this.whitespace$0();
+        t1 = _this.scanner;
+        t2 = t1._string_scanner$_position;
+        return new A.SupportsNegation(_this._supportsConditionInParens$0(), t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      } else {
+        t1 = _this.scanner;
+        if (t1.peekChar$0() === 40)
+          return _this._supportsCondition$0();
+        else {
+          _0_0 = _this._tryImportSupportsFunction$0();
+          if (_0_0 != null)
+            return _0_0;
+          t2 = t1._string_scanner$_position;
+          $name = _this._expression$0();
+          t1.expectChar$1(58);
+          return _this._supportsDeclarationValue$2($name, new A._SpanScannerState(t1, t2));
+        }
+      }
+    },
+    _tryImportSupportsFunction$0() {
+      var t1, start, $name, value, _this = this;
+      if (!_this._lookingAtInterpolatedIdentifier$0())
+        return null;
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      $name = _this.interpolatedIdentifier$0();
+      if (!t1.scanChar$1(40)) {
+        t1.set$state(start);
+        return null;
+      }
+      value = _this._interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(true, true);
+      t1.expectChar$1(41);
+      return new A.SupportsFunction($name, value, t1.spanFrom$1(start));
+    },
+    _includeRule$1(start) {
+      var name0, namespace, $arguments, t2, t3, contentArguments, contentArguments_, wasInContentBlock, $content, span, _this = this, _null = null,
+        $name = _this.identifier$0(),
+        t1 = _this.scanner;
+      if (t1.scanChar$1(46)) {
+        name0 = _this._publicIdentifier$0();
+        namespace = $name;
+        $name = name0;
+      } else
+        namespace = _null;
+      _this.whitespace$0();
+      if (t1.peekChar$0() === 40)
+        $arguments = _this._argumentInvocation$1$mixin(true);
+      else {
+        t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = A.ArgumentInvocation$empty(A._FileSpan$(t2.file, t3, t3));
+      }
+      _this.whitespace$0();
+      if (_this.scanIdentifier$1("using")) {
+        _this.whitespace$0();
+        contentArguments = _this._argumentDeclaration$0();
+        _this.whitespace$0();
+      } else
+        contentArguments = _null;
+      t2 = contentArguments == null;
+      if (!t2 || _this.lookingAtChildren$0()) {
+        if (t2) {
+          t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+          t3 = t2.offset;
+          contentArguments_ = new A.ArgumentDeclaration(B.List_empty11, _null, A._FileSpan$(t2.file, t3, t3));
+        } else
+          contentArguments_ = contentArguments;
+        wasInContentBlock = _this._inContentBlock;
+        _this._inContentBlock = true;
+        $content = _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser__includeRule_closure(contentArguments_));
+        _this._inContentBlock = wasInContentBlock;
+      } else {
+        _this.expectStatementSeparator$0();
+        $content = _null;
+      }
+      t1 = t1.spanFrom$2(start, start);
+      t2 = $content == null ? $arguments : $content;
+      span = t1.expand$1(0, t2.get$span(t2));
+      return new A.IncludeRule(namespace, A.stringReplaceAllUnchecked($name, "_", "-"), $name, $arguments, $content, span);
+    },
+    mediaRule$1(start) {
+      return this._withChildren$3(this.get$_statement(), start, new A.StylesheetParser_mediaRule_closure(this._mediaQueryList$0()));
+    },
+    _mixinRule$1(start) {
+      var t1, t2, $name, $arguments, t3, _this = this,
+        precedingComment = _this.lastSilentComment;
+      _this.lastSilentComment = null;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      $name = _this.identifier$0();
+      if (B.JSString_methods.startsWith$1($name, "--"))
+        A.WarnForDeprecation_warnForDeprecation(_this.logger, B.Deprecation_HJ0, string$.Sass__m, t1.spanFrom$1(new A._SpanScannerState(t1, t2)), null);
+      _this.whitespace$0();
+      if (t1.peekChar$0() === 40)
+        $arguments = _this._argumentDeclaration$0();
+      else {
+        t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = new A.ArgumentDeclaration(B.List_empty11, null, A._FileSpan$(t2.file, t3, t3));
+      }
+      if (_this._stylesheet$_inMixin || _this._inContentBlock)
+        _this.error$2(0, string$.Mixinscm, t1.spanFrom$1(start));
+      else if (_this._inControlDirective)
+        _this.error$2(0, string$.Mixinsb, t1.spanFrom$1(start));
+      _this.whitespace$0();
+      _this._stylesheet$_inMixin = true;
+      return _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser__mixinRule_closure(_this, $name, $arguments, precedingComment));
+    },
+    mozDocumentRule$2(start, $name) {
+      var t5, t6, identifier, _0_0, argument, trailing, endPosition, t7, t8, start0, end, _this = this, _box_0 = {},
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        t4 = A._setArrayType([], type$.JSArray_Object),
+        buffer = new A.InterpolationBuffer(t3, t4);
+      _box_0.needsDeprecationWarning = false;
+      for (t5 = _this.get$whitespace(); true;) {
+        if (t1.peekChar$0() === 35) {
+          t6 = _this.singleInterpolation$0();
+          buffer._flushText$0();
+          t4.push(t6);
+          _box_0.needsDeprecationWarning = true;
+        } else {
+          t6 = t1._string_scanner$_position;
+          identifier = _this.identifier$0();
+          $label0$0: {
+            if ("url" === identifier || "url-prefix" === identifier || "domain" === identifier) {
+              _0_0 = _this._tryUrlContents$2$name(new A._SpanScannerState(t1, t6), identifier);
+              if (_0_0 != null)
+                buffer.addInterpolation$1(_0_0);
+              else {
+                t1.expectChar$1(40);
+                _this.whitespace$0();
+                argument = _this.interpolatedString$0();
+                t1.expectChar$1(41);
+                t3._contents += identifier;
+                t6 = A.Primitives_stringFromCharCode(40);
+                t3._contents += t6;
+                buffer.addInterpolation$1(argument.asInterpolation$0());
+                t6 = A.Primitives_stringFromCharCode(41);
+                t3._contents += t6;
+              }
+              t6 = t3._contents;
+              trailing = t6.charCodeAt(0) == 0 ? t6 : t6;
+              if (!B.JSString_methods.endsWith$1(trailing, "url-prefix()") && !B.JSString_methods.endsWith$1(trailing, "url-prefix('')") && !B.JSString_methods.endsWith$1(trailing, 'url-prefix("")'))
+                _box_0.needsDeprecationWarning = true;
+              break $label0$0;
+            }
+            if ("regexp" === identifier) {
+              t3._contents += "regexp(";
+              t1.expectChar$1(40);
+              buffer.addInterpolation$1(_this.interpolatedString$0().asInterpolation$0());
+              t1.expectChar$1(41);
+              t6 = A.Primitives_stringFromCharCode(41);
+              t3._contents += t6;
+              _box_0.needsDeprecationWarning = true;
+              break $label0$0;
+            }
+            endPosition = t1._string_scanner$_position;
+            t7 = t1._sourceFile;
+            t8 = new A._FileSpan(t7, t6, endPosition);
+            t8._FileSpan$3(t7, t6, endPosition);
+            _this.error$2(0, "Invalid function name.", t8);
+          }
+        }
+        _this.whitespace$0();
+        if (!t1.scanChar$1(44))
+          break;
+        t6 = A.Primitives_stringFromCharCode(44);
+        t3._contents += t6;
+        start0 = t1._string_scanner$_position;
+        t5.call$0();
+        end = t1._string_scanner$_position;
+        t3._contents += B.JSString_methods.substring$2(t1.string, start0, end);
+      }
+      return _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser_mozDocumentRule_closure(_box_0, _this, $name, buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)))));
+    },
+    supportsRule$1(start) {
+      var _this = this,
+        condition = _this._supportsCondition$0();
+      _this.whitespace$0();
+      return _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser_supportsRule_closure(condition));
+    },
+    _useRule$1(start) {
+      var namespace, configuration, span, t1, _this = this,
+        _s9_ = "@use rule",
+        url = _this._urlString$0();
+      _this.whitespace$0();
+      namespace = _this._useNamespace$2(url, start);
+      _this.whitespace$0();
+      configuration = _this._stylesheet$_configuration$0();
+      _this.expectStatementSeparator$1(_s9_);
+      span = _this.scanner.spanFrom$1(start);
+      if (!_this._isUseAllowed)
+        _this.error$2(0, string$.x40use_r, span);
+      _this.expectStatementSeparator$1(_s9_);
+      t1 = new A.UseRule(url, namespace, configuration == null ? B.List_empty10 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable), span);
+      t1.UseRule$4$configuration(url, namespace, span, configuration);
+      return t1;
+    },
+    _useNamespace$2(url, start) {
+      var namespace, basename, dot, t1, exception, _this = this;
+      if (_this.scanIdentifier$1("as")) {
+        _this.whitespace$0();
+        return _this.scanner.scanChar$1(42) ? null : _this.identifier$0();
+      }
+      basename = url.get$pathSegments().length === 0 ? "" : B.JSArray_methods.get$last(url.get$pathSegments());
+      dot = B.JSString_methods.indexOf$1(basename, ".");
+      t1 = B.JSString_methods.startsWith$1(basename, "_") ? 1 : 0;
+      namespace = B.JSString_methods.substring$2(basename, t1, dot === -1 ? basename.length : dot);
+      try {
+        t1 = A.SpanScanner$(namespace, null);
+        t1 = new A.Parser(t1, _this.logger, null)._parseIdentifier$0();
+        return t1;
+      } catch (exception) {
+        if (type$.SassFormatException._is(A.unwrapException(exception)))
+          _this.error$2(0, 'The default namespace "' + A.S(namespace) + string$.x22x20is_n, _this.scanner.spanFrom$1(start));
+        else
+          throw exception;
+      }
+    },
+    _stylesheet$_configuration$1$allowGuarded(allowGuarded) {
+      var variableNames, configuration, t1, t2, $name, expression, t3, guarded, endPosition, t4, t5, span, _this = this;
+      if (!_this.scanIdentifier$1("with"))
+        return null;
+      variableNames = A.LinkedHashSet_LinkedHashSet$_empty(type$.String);
+      configuration = A._setArrayType([], type$.JSArray_ConfiguredVariable);
+      _this.whitespace$0();
+      t1 = _this.scanner;
+      t1.expectChar$1(40);
+      for (; true;) {
+        _this.whitespace$0();
+        t2 = t1._string_scanner$_position;
+        t1.expectChar$1(36);
+        $name = _this.identifier$1$normalize(true);
+        _this.whitespace$0();
+        t1.expectChar$1(58);
+        _this.whitespace$0();
+        expression = _this.expressionUntilComma$0();
+        t3 = t1._string_scanner$_position;
+        if (allowGuarded && t1.scanChar$1(33)) {
+          guarded = _this.identifier$0() === "default";
+          if (guarded)
+            _this.whitespace$0();
+          else {
+            endPosition = t1._string_scanner$_position;
+            t4 = t1._sourceFile;
+            t5 = new A._FileSpan(t4, t3, endPosition);
+            t5._FileSpan$3(t4, t3, endPosition);
+            _this.error$2(0, "Invalid flag name.", t5);
+          }
+        } else
+          guarded = false;
+        endPosition = t1._string_scanner$_position;
+        t3 = t1._sourceFile;
+        span = new A._FileSpan(t3, t2, endPosition);
+        span._FileSpan$3(t3, t2, endPosition);
+        if (variableNames.contains$1(0, $name))
+          _this.error$2(0, string$.The_sa, span);
+        variableNames.add$1(0, $name);
+        configuration.push(new A.ConfiguredVariable($name, expression, guarded, span));
+        if (!t1.scanChar$1(44))
+          break;
+        _this.whitespace$0();
+        if (!_this._lookingAtExpression$0())
+          break;
+      }
+      t1.expectChar$1(41);
+      return configuration;
+    },
+    _stylesheet$_configuration$0() {
+      return this._stylesheet$_configuration$1$allowGuarded(false);
+    },
+    _warnRule$1(start) {
+      var value = this._expression$0();
+      this.expectStatementSeparator$1("@warn rule");
+      return new A.WarnRule(value, this.scanner.spanFrom$1(start));
+    },
+    _whileRule$2(start, child) {
+      var _this = this,
+        wasInControlDirective = _this._inControlDirective;
+      _this._inControlDirective = true;
+      return _this._withChildren$3(child, start, new A.StylesheetParser__whileRule_closure(_this, wasInControlDirective, _this._expression$0()));
+    },
+    unknownAtRule$2(start, $name) {
+      var t2, t3, rule, _this = this, t1 = {},
+        wasInUnknownAtRule = _this._stylesheet$_inUnknownAtRule;
+      _this._stylesheet$_inUnknownAtRule = true;
+      t1.value = null;
+      t2 = _this.scanner;
+      t3 = t2.peekChar$0() !== 33 && !_this.atEndOfStatement$0() ? t1.value = _this.almostAnyValue$0() : null;
+      if (_this.lookingAtChildren$0())
+        rule = _this._withChildren$3(_this.get$_statement(), start, new A.StylesheetParser_unknownAtRule_closure(t1, $name));
+      else {
+        _this.expectStatementSeparator$0();
+        rule = A.AtRule$($name, t2.spanFrom$1(start), null, t3);
+      }
+      _this._stylesheet$_inUnknownAtRule = wasInUnknownAtRule;
+      return rule;
+    },
+    _disallowedAtRule$1(start) {
+      this.almostAnyValue$0();
+      this.error$2(0, "This at-rule is not allowed here.", this.scanner.spanFrom$1(start));
+    },
+    _argumentDeclaration$0() {
+      var $arguments, named, restArgument, t3, $name, defaultValue, endPosition, t4, t5, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expectChar$1(40);
+      _this.whitespace$0();
+      $arguments = A._setArrayType([], type$.JSArray_Argument);
+      named = A.LinkedHashSet_LinkedHashSet$_empty(type$.String);
+      while (true) {
+        if (!(t1.peekChar$0() === 36)) {
+          restArgument = null;
+          break;
+        }
+        t3 = t1._string_scanner$_position;
+        t1.expectChar$1(36);
+        $name = _this.identifier$1$normalize(true);
+        _this.whitespace$0();
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          defaultValue = _this.expressionUntilComma$0();
+        } else {
+          if (t1.scanChar$1(46)) {
+            t1.expectChar$1(46);
+            t1.expectChar$1(46);
+            _this.whitespace$0();
+            restArgument = $name;
+            break;
+          }
+          defaultValue = null;
+        }
+        endPosition = t1._string_scanner$_position;
+        t4 = t1._sourceFile;
+        t5 = new A._FileSpan(t4, t3, endPosition);
+        t5._FileSpan$3(t4, t3, endPosition);
+        $arguments.push(new A.Argument($name, defaultValue, t5));
+        if (!named.add$1(0, $name))
+          _this.error$2(0, "Duplicate argument.", B.JSArray_methods.get$last($arguments).span);
+        if (!t1.scanChar$1(44)) {
+          restArgument = null;
+          break;
+        }
+        _this.whitespace$0();
+      }
+      t1.expectChar$1(41);
+      t1 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      return new A.ArgumentDeclaration(A.List_List$unmodifiable($arguments, type$.Argument), restArgument, t1);
+    },
+    _argumentInvocation$2$allowEmptySecondArg$mixin(allowEmptySecondArg, mixin) {
+      var positional, t3, t4, named, keywordRest, t5, rest, expression, t6, t7, result, _this = this, _null = null,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expectChar$1(40);
+      _this.whitespace$0();
+      positional = A._setArrayType([], type$.JSArray_Expression);
+      t3 = type$.String;
+      t4 = type$.Expression;
+      named = A.LinkedHashMap_LinkedHashMap$_empty(t3, t4);
+      t5 = !mixin;
+      rest = _null;
+      while (true) {
+        if (!_this._lookingAtExpression$0()) {
+          keywordRest = _null;
+          break;
+        }
+        expression = _this.expressionUntilComma$1$singleEquals(t5);
+        _this.whitespace$0();
+        if (expression instanceof A.VariableExpression && t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t6 = expression.name;
+          if (named.containsKey$1(t6))
+            _this.error$2(0, "Duplicate argument.", expression.span);
+          named.$indexSet(0, t6, _this.expressionUntilComma$1$singleEquals(t5));
+        } else if (t1.scanChar$1(46)) {
+          t1.expectChar$1(46);
+          t1.expectChar$1(46);
+          if (rest != null) {
+            _this.whitespace$0();
+            keywordRest = expression;
+            break;
+          }
+          rest = expression;
+        } else if (named.__js_helper$_length !== 0)
+          _this.error$2(0, string$.Positi, expression.get$span(expression));
+        else
+          positional.push(expression);
+        _this.whitespace$0();
+        if (!t1.scanChar$1(44)) {
+          keywordRest = _null;
+          break;
+        }
+        _this.whitespace$0();
+        if (allowEmptySecondArg && positional.length === 1 && named.__js_helper$_length === 0 && rest == null && t1.peekChar$0() === 41) {
+          t5 = t1._sourceFile;
+          t6 = t1._string_scanner$_position;
+          new A.FileLocation(t5, t6).FileLocation$_$2(t5, t6);
+          t7 = new A._FileSpan(t5, t6, t6);
+          t7._FileSpan$3(t5, t6, t6);
+          t6 = A._setArrayType([""], type$.JSArray_Object);
+          result = A.List_List$from(t6, false, type$.Object);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t5 = new A.Interpolation(result, t7);
+          t5.Interpolation$2(t6, t7);
+          positional.push(new A.StringExpression(t5, false));
+          keywordRest = _null;
+          break;
+        }
+      }
+      t1.expectChar$1(41);
+      t1 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      return new A.ArgumentInvocation(A.List_List$unmodifiable(positional, t4), A.ConstantMap_ConstantMap$from(named, t3, t4), rest, keywordRest, t1);
+    },
+    _argumentInvocation$0() {
+      return this._argumentInvocation$2$allowEmptySecondArg$mixin(false, false);
+    },
+    _argumentInvocation$1$allowEmptySecondArg(allowEmptySecondArg) {
+      return this._argumentInvocation$2$allowEmptySecondArg$mixin(allowEmptySecondArg, false);
+    },
+    _argumentInvocation$1$mixin(mixin) {
+      return this._argumentInvocation$2$allowEmptySecondArg$mixin(false, mixin);
+    },
+    _expression$3$bracketList$singleEquals$until(bracketList, singleEquals, until) {
+      var t2, beforeBracket, start, wasInExpression, wasInParentheses, resetState, resolveOneOperation, resolveOperations, addSingleExpression, addOperator, resolveSpaceExpressions, t3, _3_0, _1_0, t4, _3_28, _2_0, _3_32, _3_40, commaExpressions, spaceExpressions, singleExpression, _this = this,
+        _s20_ = "Expected expression.",
+        _box_0 = {},
+        t1 = until != null;
+      if (t1 && until.call$0())
+        _this.scanner.error$1(0, _s20_);
+      if (bracketList) {
+        t2 = _this.scanner;
+        beforeBracket = new A._SpanScannerState(t2, t2._string_scanner$_position);
+        t2.expectChar$1(91);
+        _this.whitespace$0();
+        if (t2.scanChar$1(93)) {
+          t1 = A._setArrayType([], type$.JSArray_Expression);
+          t2 = t2.spanFrom$1(beforeBracket);
+          return new A.ListExpression(A.List_List$unmodifiable(t1, type$.Expression), B.ListSeparator_undecided_null_undecided, true, t2);
+        }
+      } else
+        beforeBracket = null;
+      t2 = _this.scanner;
+      start = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      wasInExpression = _this._inExpression;
+      wasInParentheses = _this._inParentheses;
+      _this._inExpression = true;
+      _box_0.operands_ = _box_0.operators_ = _box_0.spaceExpressions_ = _box_0.commaExpressions_ = null;
+      _box_0.allowSlash = true;
+      _box_0.singleExpression_ = _this._singleExpression$0();
+      resetState = new A.StylesheetParser__expression_resetState(_box_0, _this, start);
+      resolveOneOperation = new A.StylesheetParser__expression_resolveOneOperation(_box_0, _this);
+      resolveOperations = new A.StylesheetParser__expression_resolveOperations(_box_0, resolveOneOperation);
+      addSingleExpression = new A.StylesheetParser__expression_addSingleExpression(_box_0, _this, resetState, resolveOperations);
+      addOperator = new A.StylesheetParser__expression_addOperator(_box_0, _this, resolveOneOperation);
+      resolveSpaceExpressions = new A.StylesheetParser__expression_resolveSpaceExpressions(_box_0, _this, resolveOperations);
+      for (t3 = type$.JSArray_Expression; true;) {
+        _this.whitespace$0();
+        if (t1 && until.call$0())
+          break;
+        _3_0 = t2.peekChar$0();
+        if (_3_0 == null)
+          break;
+        if (40 === _3_0) {
+          addSingleExpression.call$1(_this.parentheses$0());
+          continue;
+        }
+        if (91 === _3_0) {
+          addSingleExpression.call$1(_this._expression$1$bracketList(true));
+          continue;
+        }
+        if (36 === _3_0) {
+          addSingleExpression.call$1(_this._variable$0());
+          continue;
+        }
+        if (38 === _3_0) {
+          addSingleExpression.call$1(_this._selector$0());
+          continue;
+        }
+        if (39 === _3_0 || 34 === _3_0) {
+          addSingleExpression.call$1(_this.interpolatedString$0());
+          continue;
+        }
+        if (35 === _3_0) {
+          addSingleExpression.call$1(_this._hashExpression$0());
+          continue;
+        }
+        if (61 === _3_0) {
+          t2.readChar$0();
+          if (singleEquals && t2.peekChar$0() !== 61)
+            addOperator.call$1(B.BinaryOperator_wdM);
+          else {
+            t2.expectChar$1(61);
+            addOperator.call$1(B.BinaryOperator_g8k);
+          }
+          continue;
+        }
+        if (33 === _3_0) {
+          $label0$1: {
+            _1_0 = t2.peekChar$1(1);
+            if (61 === _1_0) {
+              t2.readChar$0();
+              t2.readChar$0();
+              addOperator.call$1(B.BinaryOperator_icU);
+              break $label0$1;
+            }
+            if (_1_0 != null)
+              if (105 !== _1_0)
+                if (73 !== _1_0)
+                  t4 = _1_0 === 32 || _1_0 === 9 || _1_0 === 10 || _1_0 === 13 || _1_0 === 12;
+                else
+                  t4 = true;
+              else
+                t4 = true;
+            else
+              t4 = true;
+            if (t4) {
+              addSingleExpression.call$1(_this._importantExpression$0());
+              break $label0$1;
+            }
+            break;
+          }
+          continue;
+        }
+        if (60 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(t2.scanChar$1(61) ? B.BinaryOperator_SPQ : B.BinaryOperator_miq);
+          continue;
+        }
+        if (62 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(t2.scanChar$1(61) ? B.BinaryOperator_oEm : B.BinaryOperator_bEa);
+          continue;
+        }
+        if (42 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_2No);
+          continue;
+        }
+        _3_28 = 43 === _3_0;
+        if (_3_28 && _box_0.singleExpression_ == null) {
+          addSingleExpression.call$1(_this._unaryOperation$0());
+          continue;
+        }
+        if (_3_28) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_u15);
+          continue;
+        }
+        if (45 === _3_0) {
+          _2_0 = t2.peekChar$1(1);
+          if (A._isInt(_2_0) && _2_0 >= 48 && _2_0 <= 57 || 46 === _2_0)
+            if (_box_0.singleExpression_ != null) {
+              t4 = t2.peekChar$1(-1);
+              t4 = t4 === 32 || t4 === 9 || t4 === 10 || t4 === 13 || t4 === 12;
+            } else
+              t4 = true;
+          else
+            t4 = false;
+          if (t4)
+            addSingleExpression.call$1(_this._number$0());
+          else if (_this._lookingAtInterpolatedIdentifier$0())
+            addSingleExpression.call$1(_this.identifierLike$0());
+          else if (_box_0.singleExpression_ == null)
+            addSingleExpression.call$1(_this._unaryOperation$0());
+          else {
+            t2.readChar$0();
+            addOperator.call$1(B.BinaryOperator_SjO);
+          }
+          continue;
+        }
+        _3_32 = 47 === _3_0;
+        if (_3_32 && _box_0.singleExpression_ == null) {
+          addSingleExpression.call$1(_this._unaryOperation$0());
+          continue;
+        }
+        if (_3_32) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_U77);
+          continue;
+        }
+        if (37 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_KNx);
+          continue;
+        }
+        if (_3_0 >= 48 && _3_0 <= 57) {
+          addSingleExpression.call$1(_this._number$0());
+          continue;
+        }
+        _3_40 = 46 === _3_0;
+        if (_3_40 && t2.peekChar$1(1) === 46)
+          break;
+        if (_3_40) {
+          addSingleExpression.call$1(_this._number$0());
+          continue;
+        }
+        if (97 === _3_0 && !_this.get$plainCss() && _this.scanIdentifier$1("and")) {
+          addOperator.call$1(B.BinaryOperator_eDt);
+          continue;
+        }
+        if (111 === _3_0 && !_this.get$plainCss() && _this.scanIdentifier$1("or")) {
+          addOperator.call$1(B.BinaryOperator_qNM);
+          continue;
+        }
+        if ((117 === _3_0 || 85 === _3_0) && t2.peekChar$1(1) === 43) {
+          addSingleExpression.call$1(_this._unicodeRange$0());
+          continue;
+        }
+        if (!(_3_0 >= 97 && _3_0 <= 122))
+          t4 = _3_0 >= 65 && _3_0 <= 90 || 95 === _3_0 || 92 === _3_0 || _3_0 >= 128;
+        else
+          t4 = true;
+        if (t4) {
+          addSingleExpression.call$1(_this.identifierLike$0());
+          continue;
+        }
+        if (44 === _3_0) {
+          if (_this._inParentheses) {
+            _this._inParentheses = false;
+            if (_box_0.allowSlash) {
+              resetState.call$0();
+              continue;
+            }
+          }
+          commaExpressions = _box_0.commaExpressions_;
+          if (commaExpressions == null)
+            commaExpressions = _box_0.commaExpressions_ = A._setArrayType([], t3);
+          if (_box_0.singleExpression_ == null)
+            t2.error$1(0, _s20_);
+          resolveSpaceExpressions.call$0();
+          t4 = _box_0.singleExpression_;
+          t4.toString;
+          commaExpressions.push(t4);
+          t2.readChar$0();
+          _box_0.allowSlash = true;
+          _box_0.singleExpression_ = null;
+          continue;
+        }
+        break;
+      }
+      if (bracketList)
+        t2.expectChar$1(93);
+      commaExpressions = _box_0.commaExpressions_;
+      spaceExpressions = _box_0.spaceExpressions_;
+      if (commaExpressions != null) {
+        resolveSpaceExpressions.call$0();
+        _this._inParentheses = wasInParentheses;
+        singleExpression = _box_0.singleExpression_;
+        if (singleExpression != null)
+          commaExpressions.push(singleExpression);
+        _this._inExpression = wasInExpression;
+        t1 = t2.spanFrom$1(beforeBracket == null ? start : beforeBracket);
+        return new A.ListExpression(A.List_List$unmodifiable(commaExpressions, type$.Expression), B.ListSeparator_ECn, bracketList, t1);
+      } else if (bracketList && spaceExpressions != null) {
+        resolveOperations.call$0();
+        _this._inExpression = wasInExpression;
+        t1 = _box_0.singleExpression_;
+        t1.toString;
+        spaceExpressions.push(t1);
+        beforeBracket.toString;
+        t2 = t2.spanFrom$1(beforeBracket);
+        return new A.ListExpression(A.List_List$unmodifiable(spaceExpressions, type$.Expression), B.ListSeparator_nbm, true, t2);
+      } else {
+        resolveSpaceExpressions.call$0();
+        if (bracketList) {
+          t1 = _box_0.singleExpression_;
+          t1.toString;
+          t3 = A._setArrayType([t1], t3);
+          beforeBracket.toString;
+          t2 = t2.spanFrom$1(beforeBracket);
+          _box_0.singleExpression_ = new A.ListExpression(A.List_List$unmodifiable(t3, type$.Expression), B.ListSeparator_undecided_null_undecided, true, t2);
+        }
+        _this._inExpression = wasInExpression;
+        t1 = _box_0.singleExpression_;
+        t1.toString;
+        return t1;
+      }
+    },
+    _expression$0() {
+      return this._expression$3$bracketList$singleEquals$until(false, false, null);
+    },
+    _expression$2$singleEquals$until(singleEquals, until) {
+      return this._expression$3$bracketList$singleEquals$until(false, singleEquals, until);
+    },
+    _expression$1$bracketList(bracketList) {
+      return this._expression$3$bracketList$singleEquals$until(bracketList, false, null);
+    },
+    _expression$1$until(until) {
+      return this._expression$3$bracketList$singleEquals$until(false, false, until);
+    },
+    expressionUntilComma$1$singleEquals(singleEquals) {
+      return this._expression$2$singleEquals$until(singleEquals, new A.StylesheetParser_expressionUntilComma_closure(this));
+    },
+    expressionUntilComma$0() {
+      return this.expressionUntilComma$1$singleEquals(false);
+    },
+    _isSlashOperand$1(expression) {
+      var t1;
+      if (!(expression instanceof A.NumberExpression))
+        if (!(expression instanceof A.FunctionExpression))
+          t1 = expression instanceof A.BinaryOperationExpression && expression.allowsSlash;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    _singleExpression$0() {
+      var next, t2, _this = this,
+        _s20_ = "Expected expression.",
+        t1 = _this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_0_0 == null)
+          t1.error$1(0, _s20_);
+        if (40 === _0_0) {
+          t1 = _this.parentheses$0();
+          break $label0$0;
+        }
+        if (47 === _0_0) {
+          t1 = _this._unaryOperation$0();
+          break $label0$0;
+        }
+        if (46 === _0_0) {
+          t1 = _this._number$0();
+          break $label0$0;
+        }
+        if (91 === _0_0) {
+          t1 = _this._expression$1$bracketList(true);
+          break $label0$0;
+        }
+        if (36 === _0_0) {
+          t1 = _this._variable$0();
+          break $label0$0;
+        }
+        if (38 === _0_0) {
+          t1 = _this._selector$0();
+          break $label0$0;
+        }
+        if (39 === _0_0 || 34 === _0_0) {
+          t1 = _this.interpolatedString$0();
+          break $label0$0;
+        }
+        if (35 === _0_0) {
+          t1 = _this._hashExpression$0();
+          break $label0$0;
+        }
+        if (43 === _0_0) {
+          next = t1.peekChar$1(1);
+          t1 = next != null && next >= 48 && next <= 57 || next === 46 ? _this._number$0() : _this._unaryOperation$0();
+          break $label0$0;
+        }
+        if (45 === _0_0) {
+          t1 = _this._minusExpression$0();
+          break $label0$0;
+        }
+        if (33 === _0_0) {
+          t1 = _this._importantExpression$0();
+          break $label0$0;
+        }
+        if ((117 === _0_0 || 85 === _0_0) && t1.peekChar$1(1) === 43) {
+          t1 = _this._unicodeRange$0();
+          break $label0$0;
+        }
+        if (_0_0 >= 48 && _0_0 <= 57) {
+          t1 = _this._number$0();
+          break $label0$0;
+        }
+        if (!(_0_0 >= 97 && _0_0 <= 122))
+          t2 = _0_0 >= 65 && _0_0 <= 90 || 95 === _0_0 || 92 === _0_0 || _0_0 >= 128;
+        else
+          t2 = true;
+        if (t2) {
+          t1 = _this.identifierLike$0();
+          break $label0$0;
+        }
+        t1 = t1.error$1(0, _s20_);
+      }
+      return t1;
+    },
+    parentheses$0() {
+      var start, first, expressions, t1, t2, _this = this,
+        wasInParentheses = _this._inParentheses;
+      _this._inParentheses = true;
+      try {
+        t1 = _this.scanner;
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+        t1.expectChar$1(40);
+        _this.whitespace$0();
+        if (!_this._lookingAtExpression$0()) {
+          t1.expectChar$1(41);
+          t2 = A._setArrayType([], type$.JSArray_Expression);
+          t1 = t1.spanFrom$1(start);
+          t2 = A.List_List$unmodifiable(t2, type$.Expression);
+          return new A.ListExpression(t2, B.ListSeparator_undecided_null_undecided, false, t1);
+        }
+        first = _this.expressionUntilComma$0();
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t1 = _this._stylesheet$_map$2(first, start);
+          return t1;
+        }
+        if (!t1.scanChar$1(44)) {
+          t1.expectChar$1(41);
+          t1 = t1.spanFrom$1(start);
+          return new A.ParenthesizedExpression(first, t1);
+        }
+        _this.whitespace$0();
+        expressions = A._setArrayType([first], type$.JSArray_Expression);
+        for (; true;) {
+          if (!_this._lookingAtExpression$0())
+            break;
+          J.add$1$ax(expressions, _this.expressionUntilComma$0());
+          if (!t1.scanChar$1(44))
+            break;
+          _this.whitespace$0();
+        }
+        t1.expectChar$1(41);
+        t1 = t1.spanFrom$1(start);
+        t2 = A.List_List$unmodifiable(expressions, type$.Expression);
+        return new A.ListExpression(t2, B.ListSeparator_ECn, false, t1);
+      } finally {
+        _this._inParentheses = wasInParentheses;
+      }
+    },
+    _stylesheet$_map$2(first, start) {
+      var t1, key, _this = this,
+        pairs = A._setArrayType([new A._Record_2(first, _this.expressionUntilComma$0())], type$.JSArray_Record_2_Expression_and_Expression);
+      for (t1 = _this.scanner; t1.scanChar$1(44);) {
+        _this.whitespace$0();
+        if (!_this._lookingAtExpression$0())
+          break;
+        key = _this.expressionUntilComma$0();
+        t1.expectChar$1(58);
+        _this.whitespace$0();
+        pairs.push(new A._Record_2(key, _this.expressionUntilComma$0()));
+      }
+      t1.expectChar$1(41);
+      t1 = t1.spanFrom$1(start);
+      return new A.MapExpression(A.List_List$unmodifiable(pairs, type$.Record_2_Expression_and_Expression), t1);
+    },
+    _hashExpression$0() {
+      var start, t2, identifier, buffer, t3, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$1(1) === 123)
+        return _this.identifierLike$0();
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(35);
+      t2 = t1.peekChar$0();
+      if (t2 == null)
+        t2 = null;
+      else
+        t2 = t2 >= 48 && t2 <= 57;
+      if (t2 === true)
+        return new A.ColorExpression(_this._hexColorContents$1(start), t1.spanFrom$1(start));
+      t2 = t1._string_scanner$_position;
+      identifier = _this.interpolatedIdentifier$0();
+      if (_this._isHexColor$1(identifier)) {
+        t1.set$state(new A._SpanScannerState(t1, t2));
+        return new A.ColorExpression(_this._hexColorContents$1(start), t1.spanFrom$1(start));
+      }
+      t2 = new A.StringBuffer("");
+      buffer = new A.InterpolationBuffer(t2, A._setArrayType([], type$.JSArray_Object));
+      t3 = A.Primitives_stringFromCharCode(35);
+      t2._contents += t3;
+      buffer.addInterpolation$1(identifier);
+      return new A.StringExpression(buffer.interpolation$1(t1.spanFrom$1(start)), false);
+    },
+    _hexColorContents$1(start) {
+      var red, green, blue, alpha, digit4, t2, t3, t4, _this = this,
+        digit1 = _this._hexDigit$0(),
+        digit2 = _this._hexDigit$0(),
+        digit3 = _this._hexDigit$0(),
+        t1 = _this.scanner,
+        $self = t1.peekChar$0();
+      if (!($self != null && A.CharacterExtension_get_isHex($self))) {
+        red = (digit1 << 4 >>> 0) + digit1;
+        green = (digit2 << 4 >>> 0) + digit2;
+        blue = (digit3 << 4 >>> 0) + digit3;
+        alpha = null;
+      } else {
+        digit4 = _this._hexDigit$0();
+        $self = t1.peekChar$0();
+        t2 = $self != null && A.CharacterExtension_get_isHex($self);
+        t3 = digit1 << 4 >>> 0;
+        t4 = digit3 << 4 >>> 0;
+        if (!t2) {
+          red = t3 + digit1;
+          green = (digit2 << 4 >>> 0) + digit2;
+          blue = t4 + digit3;
+          alpha = ((digit4 << 4 >>> 0) + digit4) / 255;
+        } else {
+          red = t3 + digit2;
+          green = t4 + digit4;
+          blue = (_this._hexDigit$0() << 4 >>> 0) + _this._hexDigit$0();
+          $self = t1.peekChar$0();
+          alpha = $self != null && A.CharacterExtension_get_isHex($self) ? ((_this._hexDigit$0() << 4 >>> 0) + _this._hexDigit$0()) / 255 : null;
+        }
+      }
+      t2 = alpha == null;
+      t3 = t2 ? 1 : alpha;
+      return A.SassColor$rgbInternal(red, green, blue, t3, t2 ? new A.SpanColorFormat(t1.spanFrom$1(start)) : null);
+    },
+    _isHexColor$1(interpolation) {
+      var _0_2, t1,
+        plain = interpolation.get$asPlain();
+      if (typeof plain == "string") {
+        _0_2 = plain.length;
+        if (3 !== _0_2)
+          if (4 !== _0_2)
+            if (6 !== _0_2)
+              t1 = 8 === _0_2;
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+      } else
+        t1 = false;
+      if (t1) {
+        t1 = new A.CodeUnits(plain);
+        return t1.every$1(t1, new A.StylesheetParser__isHexColor_closure());
+      } else
+        return false;
+    },
+    _hexDigit$0() {
+      var t1 = this.scanner,
+        t2 = t1.peekChar$0();
+      t2 = t2 == null ? null : A.CharacterExtension_get_isHex(t2);
+      return t2 === true ? A.asHex(t1.readChar$0()) : t1.error$1(0, "Expected hex digit.");
+    },
+    _minusExpression$0() {
+      var _this = this,
+        _0_0 = _this.scanner.peekChar$1(1);
+      if (A._isInt(_0_0) && _0_0 >= 48 && _0_0 <= 57 || 46 === _0_0)
+        return _this._number$0();
+      if (_this._lookingAtInterpolatedIdentifier$0())
+        return _this.identifierLike$0();
+      return _this._unaryOperation$0();
+    },
+    _importantExpression$0() {
+      var t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.readChar$0();
+      this.whitespace$0();
+      this.expectIdentifier$1("important");
+      t2 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      return new A.StringExpression(A.Interpolation$(A._setArrayType(["!important"], type$.JSArray_Object), t2), false);
+    },
+    _unaryOperation$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        operator = _this._unaryOperatorFor$1(t1.readChar$0());
+      if (operator == null)
+        t1.error$2$position(0, "Expected unary operator.", t1._string_scanner$_position - 1);
+      else if (_this.get$plainCss() && operator !== B.UnaryOperator_SJr)
+        t1.error$3$length$position(0, "Operators aren't allowed in plain CSS.", 1, t1._string_scanner$_position - 1);
+      _this.whitespace$0();
+      return new A.UnaryOperationExpression(operator, _this._singleExpression$0(), t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _unaryOperatorFor$1(character) {
+      var t1;
+      $label0$0: {
+        if (43 === character) {
+          t1 = B.UnaryOperator_cLp;
+          break $label0$0;
+        }
+        if (45 === character) {
+          t1 = B.UnaryOperator_AiQ;
+          break $label0$0;
+        }
+        if (47 === character) {
+          t1 = B.UnaryOperator_SJr;
+          break $label0$0;
+        }
+        t1 = null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _number$0() {
+      var number, unit, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        first = t1.peekChar$0(),
+        t3 = first !== 43;
+      if (!t3 || first === 45)
+        t1.readChar$0();
+      if (t1.peekChar$0() !== 46)
+        _this._consumeNaturalNumber$0();
+      _this._tryDecimal$1$allowTrailingDot(t1._string_scanner$_position !== t2 && t3 && first !== 45);
+      _this._tryExponent$0();
+      number = A.double_parse(t1.substring$1(0, t2));
+      if (t1.scanChar$1(37))
+        unit = "%";
+      else {
+        if (_this.lookingAtIdentifier$0())
+          t3 = t1.peekChar$0() !== 45 || t1.peekChar$1(1) !== 45;
+        else
+          t3 = false;
+        unit = t3 ? _this.identifier$1$unit(true) : null;
+      }
+      return new A.NumberExpression(number, unit, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _consumeNaturalNumber$0() {
+      var $self,
+        t1 = this.scanner,
+        t2 = t1.readChar$0();
+      if (!(t2 >= 48 && t2 <= 57))
+        t1.error$2$position(0, "Expected digit.", t1._string_scanner$_position - 1);
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t1.readChar$0();
+      }
+    },
+    _tryDecimal$1$allowTrailingDot(allowTrailingDot) {
+      var $self,
+        t1 = this.scanner;
+      if (t1.peekChar$0() !== 46)
+        return;
+      $self = t1.peekChar$1(1);
+      if (!($self != null && $self >= 48 && $self <= 57)) {
+        if (allowTrailingDot)
+          return;
+        t1.error$2$position(0, "Expected digit.", t1._string_scanner$_position + 1);
+      }
+      t1.readChar$0();
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t1.readChar$0();
+      }
+    },
+    _tryExponent$0() {
+      var next, $self,
+        t1 = this.scanner,
+        first = t1.peekChar$0();
+      if (first !== 101 && first !== 69)
+        return;
+      next = t1.peekChar$1(1);
+      if (!(next != null && next >= 48 && next <= 57) && next !== 45 && next !== 43)
+        return;
+      t1.readChar$0();
+      if (43 === next || 45 === next)
+        t1.readChar$0();
+      $self = t1.peekChar$0();
+      if (!($self != null && $self >= 48 && $self <= 57))
+        t1.error$1(0, "Expected digit.");
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t1.readChar$0();
+      }
+    },
+    _unicodeRange$0() {
+      var firstRangeLength, hasQuestionMark, t2, secondRangeLength, _this = this,
+        _s26_ = "Expected at most 6 digits.",
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _this.expectIdentChar$1(117);
+      t1.expectChar$1(43);
+      for (firstRangeLength = 0; _this.scanCharIf$1(new A.StylesheetParser__unicodeRange_closure());)
+        ++firstRangeLength;
+      for (hasQuestionMark = false; t1.scanChar$1(63); hasQuestionMark = true)
+        ++firstRangeLength;
+      if (firstRangeLength === 0)
+        t1.error$1(0, 'Expected hex digit or "?".');
+      else if (firstRangeLength > 6)
+        _this.error$2(0, _s26_, t1.spanFrom$1(start));
+      else if (hasQuestionMark) {
+        t2 = t1.substring$1(0, start.position);
+        t1 = t1.spanFrom$1(start);
+        return new A.StringExpression(A.Interpolation$(A._setArrayType([t2], type$.JSArray_Object), t1), false);
+      }
+      if (t1.scanChar$1(45)) {
+        t2 = t1._string_scanner$_position;
+        for (secondRangeLength = 0; _this.scanCharIf$1(new A.StylesheetParser__unicodeRange_closure0());)
+          ++secondRangeLength;
+        if (secondRangeLength === 0)
+          t1.error$1(0, "Expected hex digit.");
+        else if (secondRangeLength > 6)
+          _this.error$2(0, _s26_, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      }
+      if (_this._lookingAtInterpolatedIdentifierBody$0())
+        t1.error$1(0, "Expected end of identifier.");
+      t2 = t1.substring$1(0, start.position);
+      t1 = t1.spanFrom$1(start);
+      return new A.StringExpression(A.Interpolation$(A._setArrayType([t2], type$.JSArray_Object), t1), false);
+    },
+    _variable$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        $name = _this.variableName$0();
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Sass_v, t1.spanFrom$1(start));
+      return new A.VariableExpression(null, $name, t1.spanFrom$1(start));
+    },
+    _selector$0() {
+      var t1, start, _this = this;
+      if (_this.get$plainCss())
+        _this.scanner.error$2$length(0, string$.The_pa, 1);
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(38);
+      if (t1.scanChar$1(38)) {
+        _this.logger.warn$2$span(0, string$.In_Sas, t1.spanFrom$1(start));
+        t1.set$position(t1._string_scanner$_position - 1);
+      }
+      return new A.SelectorExpression(t1.spanFrom$1(start));
+    },
+    interpolatedString$0() {
+      var t3, t4, buffer, _0_0, second, t5,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position,
+        quote = t1.readChar$0();
+      if (quote !== 39 && quote !== 34)
+        t1.error$2$position(0, "Expected string.", t2);
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer(t3, t4);
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 === quote) {
+          t1.readChar$0();
+          break;
+        }
+        if (_0_0 == null || _0_0 === 10 || _0_0 === 13 || _0_0 === 12)
+          t1.error$1(0, "Expected " + A.Primitives_stringFromCharCode(quote) + ".");
+        if (92 === _0_0) {
+          second = t1.peekChar$1(1);
+          if (second === 10 || second === 13 || second === 12) {
+            t1.readChar$0();
+            t1.readChar$0();
+            if (second === 13)
+              t1.scanChar$1(10);
+          } else {
+            t5 = A.Primitives_stringFromCharCode(A.consumeEscapedCharacter(t1));
+            t3._contents += t5;
+          }
+          continue;
+        }
+        if (35 === _0_0 && t1.peekChar$1(1) === 123) {
+          t5 = this.singleInterpolation$0();
+          buffer._flushText$0();
+          t4.push(t5);
+          continue;
+        }
+        t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+        t3._contents += t5;
+      }
+      return new A.StringExpression(buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2))), true);
+    },
+    identifierLike$0() {
+      var invocation, expression, _0_0, _1_0, _2_0, _2_2, _2_4, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        identifier = _this.interpolatedIdentifier$0(),
+        plain = identifier.get$asPlain(),
+        lower = A._Cell$(),
+        t2 = plain != null;
+      if (t2) {
+        if (plain === "if" && t1.peekChar$0() === 40) {
+          invocation = _this._argumentInvocation$0();
+          return new A.IfExpression(invocation, identifier.span.expand$1(0, invocation.span));
+        } else if (plain === "not") {
+          _this.whitespace$0();
+          expression = _this._singleExpression$0();
+          return new A.UnaryOperationExpression(B.UnaryOperator_not_not_not, expression, identifier.span.expand$1(0, expression.get$span(expression)));
+        }
+        lower.__late_helper$_value = plain.toLowerCase();
+        if (t1.peekChar$0() !== 40) {
+          switch (plain) {
+            case "false":
+              return new A.BooleanExpression(false, identifier.span);
+            case "null":
+              return new A.NullExpression(identifier.span);
+            case "true":
+              return new A.BooleanExpression(true, identifier.span);
+          }
+          _0_0 = $.$get$colorsByName().$index(0, lower._readLocal$0());
+          if (_0_0 != null) {
+            t1 = identifier.span;
+            return new A.ColorExpression(A.SassColor$rgbInternal(_0_0.get$red(0), _0_0.get$green(0), _0_0.get$blue(0), _0_0._alpha, new A.SpanColorFormat(t1)), t1);
+          }
+        }
+        _1_0 = _this.trySpecialFunction$2(lower._readLocal$0(), start);
+        if (_1_0 != null)
+          return _1_0;
+      }
+      _2_0 = t1.peekChar$0();
+      _2_2 = 46 === _2_0;
+      if (_2_2 && t1.peekChar$1(1) === 46)
+        return new A.StringExpression(identifier, false);
+      if (_2_2) {
+        t1.readChar$0();
+        if (t2)
+          return _this.namespacedExpression$2(plain, start);
+        _this.error$2(0, string$.Interpn, identifier.span);
+      }
+      _2_4 = 40 === _2_0;
+      if (_2_4 && t2) {
+        t2 = _this._argumentInvocation$1$allowEmptySecondArg(J.$eq$(lower._readLocal$0(), "var"));
+        t1 = t1.spanFrom$1(start);
+        return new A.FunctionExpression(null, A.stringReplaceAllUnchecked(plain, "_", "-"), plain, t2, t1);
+      }
+      if (_2_4)
+        return new A.InterpolatedFunctionExpression(identifier, _this._argumentInvocation$0(), t1.spanFrom$1(start));
+      return new A.StringExpression(identifier, false);
+    },
+    namespacedExpression$2(namespace, start) {
+      var $name, t2, t3, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$0() === 36) {
+        $name = _this.variableName$0();
+        _this._assertPublic$2($name, new A.StylesheetParser_namespacedExpression_closure(_this, start));
+        return new A.VariableExpression(namespace, $name, t1.spanFrom$1(start));
+      }
+      t2 = _this._publicIdentifier$0();
+      t3 = _this._argumentInvocation$0();
+      t1 = t1.spanFrom$1(start);
+      return new A.FunctionExpression(namespace, A.stringReplaceAllUnchecked(t2, "_", "-"), t2, t3, t1);
+    },
+    trySpecialFunction$2($name, start) {
+      var t1, buffer, t2, next, t3, _this = this,
+        normalized = A.unvendor($name);
+      $label0$0: {
+        if (!("calc" === normalized && normalized !== $name && _this.scanner.scanChar$1(40)))
+          t1 = ("element" === normalized || "expression" === normalized) && _this.scanner.scanChar$1(40);
+        else
+          t1 = true;
+        if (t1) {
+          t1 = new A.StringBuffer("");
+          buffer = new A.InterpolationBuffer(t1, A._setArrayType([], type$.JSArray_Object));
+          t1._contents = "" + $name;
+          t2 = A.Primitives_stringFromCharCode(40);
+          t1._contents += t2;
+          break $label0$0;
+        }
+        if ("progid" === normalized && _this.scanner.scanChar$1(58)) {
+          t1 = new A.StringBuffer("");
+          buffer = new A.InterpolationBuffer(t1, A._setArrayType([], type$.JSArray_Object));
+          t1._contents = "" + $name;
+          t2 = A.Primitives_stringFromCharCode(58);
+          t1._contents += t2;
+          t2 = _this.scanner;
+          next = t2.peekChar$0();
+          while (true) {
+            if (next != null) {
+              if (!(next >= 97 && next <= 122))
+                t3 = next >= 65 && next <= 90;
+              else
+                t3 = true;
+              t3 = t3 || next === 46;
+            } else
+              t3 = false;
+            if (!t3)
+              break;
+            t3 = A.Primitives_stringFromCharCode(t2.readChar$0());
+            t1._contents += t3;
+            next = t2.peekChar$0();
+          }
+          t2.expectChar$1(40);
+          t2 = A.Primitives_stringFromCharCode(40);
+          t1._contents += t2;
+          break $label0$0;
+        }
+        if ("url" === normalized)
+          return A.NullableExtension_andThen(_this._tryUrlContents$1(start), new A.StylesheetParser_trySpecialFunction_closure());
+        return null;
+      }
+      buffer.addInterpolation$1(_this._interpolatedDeclarationValue$1$allowEmpty(true));
+      t1 = _this.scanner;
+      t1.expectChar$1(41);
+      t2 = buffer._interpolation_buffer$_text;
+      t3 = A.Primitives_stringFromCharCode(41);
+      t2._contents += t3;
+      return new A.StringExpression(buffer.interpolation$1(t1.spanFrom$1(start)), false);
+    },
+    _tryUrlContents$2$name(start, $name) {
+      var t3, t4, buffer, t5, _0_0, _0_6, endPosition, result, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      if (!t1.scanChar$1(40))
+        return null;
+      _this.whitespaceWithoutComments$0();
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer(t3, t4);
+      t3._contents = "" + ($name == null ? "url" : $name);
+      t5 = A.Primitives_stringFromCharCode(40);
+      t3._contents += t5;
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          break;
+        if (92 === _0_0) {
+          t5 = _this.escape$0();
+          t3._contents += t5;
+          continue;
+        }
+        _0_6 = 35 === _0_0;
+        if (_0_6 && t1.peekChar$1(1) === 123) {
+          t5 = _this.singleInterpolation$0();
+          buffer._flushText$0();
+          t4.push(t5);
+          continue;
+        }
+        if (33 !== _0_0)
+          if (37 !== _0_0)
+            if (38 !== _0_0)
+              if (!_0_6)
+                t5 = _0_0 >= 42 && _0_0 <= 126 || _0_0 >= 128;
+              else
+                t5 = true;
+            else
+              t5 = true;
+          else
+            t5 = true;
+        else
+          t5 = true;
+        if (t5) {
+          t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t5;
+          continue;
+        }
+        if (_0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12) {
+          _this.whitespaceWithoutComments$0();
+          if (t1.peekChar$0() !== 41)
+            break;
+          continue;
+        }
+        if (41 === _0_0) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t2;
+          endPosition = t1._string_scanner$_position;
+          t2 = t1._sourceFile;
+          t5 = start.position;
+          t1 = new A._FileSpan(t2, t5, endPosition);
+          t1._FileSpan$3(t2, t5, endPosition);
+          t5 = type$.Object;
+          t2 = A.List_List$of(t4, true, t5);
+          t4 = t3._contents;
+          if (t4.length !== 0)
+            t2.push(t4.charCodeAt(0) == 0 ? t4 : t4);
+          result = A.List_List$from(t2, false, t5);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t3 = new A.Interpolation(result, t1);
+          t3.Interpolation$2(t2, t1);
+          return t3;
+        }
+        break;
+      }
+      t1.set$state(new A._SpanScannerState(t1, t2));
+      return null;
+    },
+    _tryUrlContents$1(start) {
+      return this._tryUrlContents$2$name(start, null);
+    },
+    dynamicUrl$0() {
+      var _0_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _this.expectIdentifier$1("url");
+      _0_0 = _this._tryUrlContents$1(start);
+      if (_0_0 != null)
+        return new A.StringExpression(_0_0, false);
+      return new A.InterpolatedFunctionExpression(A.Interpolation$(A._setArrayType(["url"], type$.JSArray_Object), t1.spanFrom$1(start)), _this._argumentInvocation$0(), t1.spanFrom$1(start));
+    },
+    almostAnyValue$1$omitComments(omitComments) {
+      var t4, t5, t6, _1_0, t7, commentStart, end, _0_0, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer(t3, A._setArrayType([], type$.JSArray_Object));
+      for (t4 = t1.string, t5 = t4.length, t6 = !omitComments; true;)
+        $label0$0: {
+          _1_0 = t1.peekChar$0();
+          if (92 === _1_0) {
+            t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t7;
+            t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t7;
+            break $label0$0;
+          }
+          if (34 === _1_0 || 39 === _1_0) {
+            buffer.addInterpolation$1(_this.interpolatedString$0().asInterpolation$0());
+            break $label0$0;
+          }
+          if (47 === _1_0) {
+            commentStart = t1._string_scanner$_position;
+            if (_this.scanComment$0()) {
+              if (t6) {
+                end = t1._string_scanner$_position;
+                t3._contents += B.JSString_methods.substring$2(t4, commentStart, end);
+              }
+            } else {
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+            }
+            break $label0$0;
+          }
+          if (35 === _1_0 && t1.peekChar$1(1) === 123) {
+            buffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+            break $label0$0;
+          }
+          if (13 === _1_0 || 10 === _1_0 || 12 === _1_0) {
+            if (_this.get$indented())
+              break;
+            t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t7;
+            break $label0$0;
+          }
+          if (33 === _1_0 || 59 === _1_0 || 123 === _1_0 || 125 === _1_0)
+            break;
+          if (117 === _1_0 || 85 === _1_0) {
+            t7 = t1._string_scanner$_position;
+            if (!_this.scanIdentifier$1("url")) {
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+              continue;
+            }
+            _0_0 = _this._tryUrlContents$1(new A._SpanScannerState(t1, t7));
+            if (_0_0 != null)
+              buffer.addInterpolation$1(_0_0);
+            else {
+              if ((t7 === 0 ? 1 / t7 < 0 : t7 < 0) || t7 > t5)
+                A.throwExpression(A.ArgumentError$("Invalid position " + t7, null));
+              t1._string_scanner$_position = t7;
+              t1._lastMatch = null;
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+            }
+            break $label0$0;
+          }
+          if (_1_0 == null)
+            break;
+          t7 = _this.lookingAtIdentifier$0();
+          if (t7) {
+            t7 = _this.identifier$0();
+            t3._contents += t7;
+            break $label0$0;
+          }
+          t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t7;
+        }
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    almostAnyValue$0() {
+      return this.almostAnyValue$1$omitComments(false);
+    },
+    _interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(allowColon, allowEmpty, allowSemicolon) {
+      var t4, t5, t6, t7, wroteNewline, _1_0, t8, start, end, _1_14_isSet, _1_14, _1_18_isSet, _1_18, _1_20_isSet, _1_20, bracket, _0_0, _this = this, _null = null,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer(t3, A._setArrayType([], type$.JSArray_Object)),
+        brackets = A._setArrayType([], type$.JSArray_int);
+      for (t4 = t1.string, t5 = t4.length, t6 = !allowColon, t7 = !allowSemicolon, wroteNewline = false; true;)
+        $label0$0: {
+          _1_0 = t1.peekChar$0();
+          if (92 === _1_0) {
+            t8 = _this.escape$1$identifierStart(true);
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (34 === _1_0 || 39 === _1_0) {
+            buffer.addInterpolation$1(_this.interpolatedString$0().asInterpolation$0());
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (47 === _1_0 && t1.peekChar$1(1) === 42) {
+            t8 = _this.get$loudComment();
+            start = t1._string_scanner$_position;
+            t8.call$0();
+            end = t1._string_scanner$_position;
+            t3._contents += B.JSString_methods.substring$2(t4, start, end);
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (35 === _1_0 && t1.peekChar$1(1) === 123) {
+            buffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+            wroteNewline = false;
+            break $label0$0;
+          }
+          _1_14_isSet = 32 !== _1_0;
+          if (_1_14_isSet) {
+            _1_14 = 9 === _1_0;
+            t8 = _1_14;
+          } else {
+            _1_14 = _null;
+            t8 = true;
+          }
+          if (t8)
+            if (!wroteNewline) {
+              t8 = t1.peekChar$1(1);
+              t8 = t8 === 32 || t8 === 9 || t8 === 10 || t8 === 13 || t8 === 12;
+            } else
+              t8 = false;
+          else
+            t8 = false;
+          if (t8) {
+            t1.readChar$0();
+            break $label0$0;
+          }
+          if (_1_14_isSet)
+            t8 = _1_14;
+          else
+            t8 = true;
+          if (t8) {
+            t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t8;
+            break $label0$0;
+          }
+          _1_18_isSet = 10 !== _1_0;
+          if (_1_18_isSet) {
+            _1_18 = 13 === _1_0;
+            _1_20_isSet = !_1_18;
+            if (_1_20_isSet) {
+              _1_20 = 12 === _1_0;
+              t8 = _1_20;
+            } else {
+              _1_20 = _null;
+              t8 = true;
+            }
+          } else {
+            _1_20 = _null;
+            _1_18 = _1_20;
+            _1_20_isSet = false;
+            t8 = true;
+          }
+          if (t8 && _this.get$indented())
+            break;
+          if (_1_18_isSet)
+            if (!_1_18)
+              t8 = _1_20_isSet ? _1_20 : 12 === _1_0;
+            else
+              t8 = true;
+          else
+            t8 = true;
+          if (t8) {
+            t8 = t1.peekChar$1(-1);
+            if (!(t8 === 10 || t8 === 13 || t8 === 12))
+              t3._contents += "\n";
+            t1.readChar$0();
+            wroteNewline = true;
+            break $label0$0;
+          }
+          if (40 === _1_0 || 123 === _1_0 || 91 === _1_0) {
+            bracket = t1.readChar$0();
+            t8 = A.Primitives_stringFromCharCode(bracket);
+            t3._contents += t8;
+            brackets.push(A.opposite(bracket));
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (41 === _1_0 || 125 === _1_0 || 93 === _1_0) {
+            if (brackets.length === 0)
+              break;
+            bracket = brackets.pop();
+            t1.expectChar$1(bracket);
+            t8 = A.Primitives_stringFromCharCode(bracket);
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (59 === _1_0) {
+            if (t7 && brackets.length === 0)
+              break;
+            t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (58 === _1_0) {
+            if (t6 && brackets.length === 0)
+              break;
+            t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (117 === _1_0 || 85 === _1_0) {
+            t8 = t1._string_scanner$_position;
+            if (!_this.scanIdentifier$1("url")) {
+              t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t8;
+              wroteNewline = false;
+              continue;
+            }
+            _0_0 = _this._tryUrlContents$1(new A._SpanScannerState(t1, t8));
+            if (_0_0 != null)
+              buffer.addInterpolation$1(_0_0);
+            else {
+              if ((t8 === 0 ? 1 / t8 < 0 : t8 < 0) || t8 > t5)
+                A.throwExpression(A.ArgumentError$("Invalid position " + t8, _null));
+              t1._string_scanner$_position = t8;
+              t1._lastMatch = null;
+              t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t8;
+            }
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (_1_0 == null)
+            break;
+          t8 = _this.lookingAtIdentifier$0();
+          if (t8) {
+            t8 = _this.identifier$0();
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t8;
+          wroteNewline = false;
+        }
+      if (brackets.length !== 0)
+        t1.expectChar$1(B.JSArray_methods.get$last(brackets));
+      if (!allowEmpty && buffer._interpolation_buffer$_contents.length === 0 && t3._contents.length === 0)
+        t1.error$1(0, "Expected token.");
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _interpolatedDeclarationValue$1$allowEmpty(allowEmpty) {
+      return this._interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(true, allowEmpty, false);
+    },
+    _interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(allowEmpty, allowSemicolon) {
+      return this._interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(true, allowEmpty, allowSemicolon);
+    },
+    _interpolatedDeclarationValue$0() {
+      return this._interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(true, false, false);
+    },
+    interpolatedIdentifier$0() {
+      var t4, _0_0, _this = this,
+        _s20_ = "Expected identifier.",
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        t2 = new A.StringBuffer(""),
+        t3 = A._setArrayType([], type$.JSArray_Object),
+        buffer = new A.InterpolationBuffer(t2, t3);
+      if (t1.scanChar$1(45)) {
+        t4 = A.Primitives_stringFromCharCode(45);
+        t2._contents += t4;
+        if (t1.scanChar$1(45)) {
+          t3 = A.Primitives_stringFromCharCode(45);
+          t2._contents += t3;
+          _this._interpolatedIdentifierBody$1(buffer);
+          return buffer.interpolation$1(t1.spanFrom$1(start));
+        }
+      }
+      $label0$0: {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          t1.error$1(0, _s20_);
+        if (_0_0 === 95 || A.CharacterExtension_get_isAlphabetic(_0_0) || _0_0 >= 128) {
+          t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t2._contents += t3;
+          break $label0$0;
+        }
+        if (92 === _0_0) {
+          t3 = _this.escape$1$identifierStart(true);
+          t2._contents += t3;
+          break $label0$0;
+        }
+        if (35 === _0_0 && t1.peekChar$1(1) === 123) {
+          t2 = _this.singleInterpolation$0();
+          buffer._flushText$0();
+          t3.push(t2);
+          break $label0$0;
+        }
+        t1.error$1(0, _s20_);
+      }
+      _this._interpolatedIdentifierBody$1(buffer);
+      return buffer.interpolation$1(t1.spanFrom$1(start));
+    },
+    _interpolatedIdentifierBody$1(buffer) {
+      var t1, t2, t3, _0_0, t4;
+      for (t1 = buffer._interpolation_buffer$_contents, t2 = this.scanner, t3 = buffer._interpolation_buffer$_text; true;) {
+        _0_0 = t2.peekChar$0();
+        if (_0_0 == null)
+          break;
+        if (95 !== _0_0)
+          if (45 !== _0_0) {
+            if (!(_0_0 >= 97 && _0_0 <= 122))
+              t4 = _0_0 >= 65 && _0_0 <= 90;
+            else
+              t4 = true;
+            if (!t4)
+              t4 = _0_0 >= 48 && _0_0 <= 57;
+            else
+              t4 = true;
+            t4 = t4 || _0_0 >= 128;
+          } else
+            t4 = true;
+        else
+          t4 = true;
+        if (t4) {
+          t4 = A.Primitives_stringFromCharCode(t2.readChar$0());
+          t3._contents += t4;
+          continue;
+        }
+        if (92 === _0_0) {
+          t4 = this.escape$0();
+          t3._contents += t4;
+          continue;
+        }
+        if (35 === _0_0 && t2.peekChar$1(1) === 123) {
+          t4 = this.singleInterpolation$0();
+          buffer._flushText$0();
+          t1.push(t4);
+          continue;
+        }
+        break;
+      }
+    },
+    singleInterpolation$0() {
+      var contents, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("#{");
+      _this.whitespace$0();
+      contents = _this._expression$0();
+      t1.expectChar$1(125);
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Interpp, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      return contents;
+    },
+    _mediaQueryList$0() {
+      var t4, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer(t3, A._setArrayType([], type$.JSArray_Object));
+      for (; true;) {
+        _this.whitespace$0();
+        _this._stylesheet$_mediaQuery$1(buffer);
+        _this.whitespace$0();
+        if (!t1.scanChar$1(44))
+          break;
+        t4 = A.Primitives_stringFromCharCode(44);
+        t3._contents += t4;
+        t4 = A.Primitives_stringFromCharCode(32);
+        t3._contents += t4;
+      }
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _stylesheet$_mediaQuery$1(buffer) {
+      var identifier1, t1, t2, identifier2, _this = this, _s3_ = "and";
+      if (_this.scanner.peekChar$0() === 40) {
+        _this._stylesheet$_mediaInParens$1(buffer);
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1(_s3_)) {
+          buffer._interpolation_buffer$_text._contents += " and ";
+          _this.expectWhitespace$0();
+          _this._stylesheet$_mediaLogicSequence$2(buffer, _s3_);
+        } else if (_this.scanIdentifier$1("or")) {
+          buffer._interpolation_buffer$_text._contents += " or ";
+          _this.expectWhitespace$0();
+          _this._stylesheet$_mediaLogicSequence$2(buffer, "or");
+        }
+        return;
+      }
+      identifier1 = _this.interpolatedIdentifier$0();
+      if (A.equalsIgnoreCase(identifier1.get$asPlain(), "not")) {
+        _this.expectWhitespace$0();
+        if (!_this._lookingAtInterpolatedIdentifier$0()) {
+          buffer._interpolation_buffer$_text._contents += "not ";
+          _this._mediaOrInterp$1(buffer);
+          return;
+        }
+      }
+      _this.whitespace$0();
+      buffer.addInterpolation$1(identifier1);
+      if (!_this._lookingAtInterpolatedIdentifier$0())
+        return;
+      t1 = buffer._interpolation_buffer$_text;
+      t2 = A.Primitives_stringFromCharCode(32);
+      t1._contents += t2;
+      identifier2 = _this.interpolatedIdentifier$0();
+      if (A.equalsIgnoreCase(identifier2.get$asPlain(), _s3_)) {
+        _this.expectWhitespace$0();
+        t1._contents += " and ";
+      } else {
+        _this.whitespace$0();
+        buffer.addInterpolation$1(identifier2);
+        if (_this.scanIdentifier$1(_s3_)) {
+          _this.expectWhitespace$0();
+          t1._contents += " and ";
+        } else
+          return;
+      }
+      if (_this.scanIdentifier$1("not")) {
+        _this.expectWhitespace$0();
+        t1._contents += "not ";
+        _this._mediaOrInterp$1(buffer);
+        return;
+      }
+      _this._stylesheet$_mediaLogicSequence$2(buffer, _s3_);
+      return;
+    },
+    _stylesheet$_mediaLogicSequence$2(buffer, operator) {
+      var t1, t2, _this = this;
+      for (t1 = buffer._interpolation_buffer$_text; true;) {
+        _this._mediaOrInterp$1(buffer);
+        _this.whitespace$0();
+        if (!_this.scanIdentifier$1(operator))
+          return;
+        _this.expectWhitespace$0();
+        t2 = A.Primitives_stringFromCharCode(32);
+        t2 = t1._contents += t2;
+        t1._contents = t2 + operator;
+        t2 = A.Primitives_stringFromCharCode(32);
+        t1._contents += t2;
+      }
+    },
+    _mediaOrInterp$1(buffer) {
+      var interpolation;
+      if (this.scanner.peekChar$0() === 35) {
+        interpolation = this.singleInterpolation$0();
+        buffer.addInterpolation$1(A.Interpolation$(A._setArrayType([interpolation], type$.JSArray_Object), interpolation.get$span(interpolation)));
+      } else
+        this._stylesheet$_mediaInParens$1(buffer);
+    },
+    _stylesheet$_mediaInParens$1(buffer) {
+      var t2, t3, t4, next, t5, _this = this,
+        t1 = _this.scanner;
+      t1.expectChar$2$name(40, "media condition in parentheses");
+      t2 = buffer._interpolation_buffer$_text;
+      t3 = A.Primitives_stringFromCharCode(40);
+      t2._contents += t3;
+      _this.whitespace$0();
+      if (t1.peekChar$0() === 40) {
+        _this._stylesheet$_mediaInParens$1(buffer);
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1("and")) {
+          t2._contents += " and ";
+          _this.expectWhitespace$0();
+          _this._stylesheet$_mediaLogicSequence$2(buffer, "and");
+        } else if (_this.scanIdentifier$1("or")) {
+          t2._contents += " or ";
+          _this.expectWhitespace$0();
+          _this._stylesheet$_mediaLogicSequence$2(buffer, "or");
+        }
+      } else if (_this.scanIdentifier$1("not")) {
+        t2._contents += "not ";
+        _this.expectWhitespace$0();
+        _this._mediaOrInterp$1(buffer);
+      } else {
+        t3 = _this._expressionUntilComparison$0();
+        buffer._flushText$0();
+        t4 = buffer._interpolation_buffer$_contents;
+        t4.push(t3);
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t3 = A.Primitives_stringFromCharCode(58);
+          t2._contents += t3;
+          t3 = A.Primitives_stringFromCharCode(32);
+          t2._contents += t3;
+          t3 = _this._expression$0();
+          buffer._flushText$0();
+          t4.push(t3);
+        } else {
+          next = t1.peekChar$0();
+          t3 = 60 !== next;
+          if (!t3 || 62 === next || 61 === next) {
+            t5 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t5;
+            t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t2._contents += t5;
+            if ((!t3 || 62 === next) && t1.scanChar$1(61)) {
+              t5 = A.Primitives_stringFromCharCode(61);
+              t2._contents += t5;
+            }
+            t5 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t5;
+            _this.whitespace$0();
+            t5 = _this._expressionUntilComparison$0();
+            buffer._flushText$0();
+            t4.push(t5);
+            if (!t3 || 62 === next) {
+              next.toString;
+              t3 = t1.scanChar$1(next);
+            } else
+              t3 = false;
+            if (t3) {
+              t3 = A.Primitives_stringFromCharCode(32);
+              t2._contents += t3;
+              t3 = A.Primitives_stringFromCharCode(next);
+              t2._contents += t3;
+              if (t1.scanChar$1(61)) {
+                t3 = A.Primitives_stringFromCharCode(61);
+                t2._contents += t3;
+              }
+              t3 = A.Primitives_stringFromCharCode(32);
+              t2._contents += t3;
+              _this.whitespace$0();
+              t3 = _this._expressionUntilComparison$0();
+              buffer._flushText$0();
+              t4.push(t3);
+            }
+          }
+        }
+      }
+      t1.expectChar$1(41);
+      _this.whitespace$0();
+      t1 = A.Primitives_stringFromCharCode(41);
+      t2._contents += t1;
+    },
+    _expressionUntilComparison$0() {
+      return this._expression$1$until(new A.StylesheetParser__expressionUntilComparison_closure(this));
+    },
+    _supportsCondition$0() {
+      var condition, operator, right, endPosition, t3, t4, lowerOperator, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      if (_this.scanIdentifier$1("not")) {
+        _this.whitespace$0();
+        return new A.SupportsNegation(_this._supportsConditionInParens$0(), t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      }
+      condition = _this._supportsConditionInParens$0();
+      _this.whitespace$0();
+      for (operator = null; _this.lookingAtIdentifier$0();) {
+        if (operator != null)
+          _this.expectIdentifier$1(operator);
+        else if (_this.scanIdentifier$1("or"))
+          operator = "or";
+        else {
+          _this.expectIdentifier$1("and");
+          operator = "and";
+        }
+        _this.whitespace$0();
+        right = _this._supportsConditionInParens$0();
+        endPosition = t1._string_scanner$_position;
+        t3 = t1._sourceFile;
+        t4 = new A._FileSpan(t3, t2, endPosition);
+        t4._FileSpan$3(t3, t2, endPosition);
+        condition = new A.SupportsOperation(condition, right, operator, t4);
+        lowerOperator = operator.toLowerCase();
+        if (lowerOperator !== "and" && lowerOperator !== "or")
+          A.throwExpression(A.ArgumentError$value(operator, "operator", 'may only be "and" or "or".'));
+        _this.whitespace$0();
+      }
+      return condition;
+    },
+    _supportsConditionInParens$0() {
+      var $name, nameStart, wasInParentheses, identifier, _1_0, operation, contents, identifier0, t2, $arguments, _0_0, _0_4_isSet, _0_4, condition, exception, declaration, _this = this, _null = null,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (_this._lookingAtInterpolatedIdentifier$0()) {
+        identifier0 = _this.interpolatedIdentifier$0();
+        t2 = identifier0.get$asPlain();
+        if ((t2 == null ? _null : t2.toLowerCase()) === "not")
+          _this.error$2(0, '"not" is not a valid identifier here.', identifier0.span);
+        if (t1.scanChar$1(40)) {
+          $arguments = _this._interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(true, true);
+          t1.expectChar$1(41);
+          return new A.SupportsFunction(identifier0, $arguments, t1.spanFrom$1(start));
+        } else {
+          _0_0 = identifier0.contents;
+          _0_4_isSet = _0_0.length === 1;
+          if (_0_4_isSet) {
+            _0_4 = _0_0[0];
+            t2 = _0_4;
+            t2 = type$.Expression._is(t2);
+          } else {
+            _0_4 = _null;
+            t2 = false;
+          }
+          if (t2) {
+            t2 = _0_4_isSet ? _0_4 : _0_0[0];
+            return new A.SupportsInterpolation(type$.Expression._as(t2), t1.spanFrom$1(start));
+          } else
+            _this.error$2(0, "Expected @supports condition.", identifier0.span);
+        }
+      }
+      t1.expectChar$1(40);
+      _this.whitespace$0();
+      if (_this.scanIdentifier$1("not")) {
+        _this.whitespace$0();
+        condition = _this._supportsConditionInParens$0();
+        t1.expectChar$1(41);
+        return new A.SupportsNegation(condition, t1.spanFrom$1(start));
+      } else if (t1.peekChar$0() === 40) {
+        condition = _this._supportsCondition$0();
+        t1.expectChar$1(41);
+        return condition;
+      }
+      $name = null;
+      nameStart = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      wasInParentheses = _this._inParentheses;
+      try {
+        $name = _this._expression$0();
+        t1.expectChar$1(58);
+      } catch (exception) {
+        if (type$.FormatException._is(A.unwrapException(exception))) {
+          t1.set$state(nameStart);
+          _this._inParentheses = wasInParentheses;
+          identifier = _this.interpolatedIdentifier$0();
+          _1_0 = _this._trySupportsOperation$2(identifier, nameStart);
+          operation = null;
+          if (_1_0 != null) {
+            operation = _1_0;
+            t1.expectChar$1(41);
+            return operation;
+          }
+          t2 = new A.InterpolationBuffer(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Object));
+          t2.addInterpolation$1(identifier);
+          t2.addInterpolation$1(_this._interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(false, true, true));
+          contents = t2.interpolation$1(t1.spanFrom$1(nameStart));
+          if (t1.peekChar$0() === 58)
+            throw exception;
+          t1.expectChar$1(41);
+          return new A.SupportsAnything(contents, t1.spanFrom$1(start));
+        } else
+          throw exception;
+      }
+      declaration = _this._supportsDeclarationValue$2($name, start);
+      t1.expectChar$1(41);
+      return declaration;
+    },
+    _supportsDeclarationValue$2($name, start) {
+      var t1, value, _this = this;
+      if ($name instanceof A.StringExpression)
+        if (!$name.hasQuotes)
+          t1 = B.JSString_methods.startsWith$1($name.text.get$initialPlain(), "--");
+        else
+          t1 = false;
+      else
+        t1 = false;
+      if (t1)
+        value = new A.StringExpression(_this._interpolatedDeclarationValue$0(), false);
+      else {
+        _this.whitespace$0();
+        value = _this._expression$0();
+      }
+      return new A.SupportsDeclaration($name, value, _this.scanner.spanFrom$1(start));
+    },
+    _trySupportsOperation$2(interpolation, start) {
+      var expression, beforeWhitespace, t2, t3, operator, operation, right, t4, endPosition, t5, t6, lowerOperator, _this = this, _null = null,
+        t1 = interpolation.contents;
+      if (t1.length !== 1)
+        return _null;
+      expression = B.JSArray_methods.get$first(t1);
+      if (!type$.Expression._is(expression))
+        return _null;
+      t1 = _this.scanner;
+      beforeWhitespace = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _this.whitespace$0();
+      for (t2 = start.position, t3 = interpolation.span, operator = _null, operation = operator; _this.lookingAtIdentifier$0();) {
+        if (operator != null)
+          _this.expectIdentifier$1(operator);
+        else if (_this.scanIdentifier$1("and"))
+          operator = "and";
+        else {
+          if (!_this.scanIdentifier$1("or")) {
+            if (beforeWhitespace._scanner !== t1)
+              A.throwExpression(A.ArgumentError$(string$.The_gi, _null));
+            t2 = beforeWhitespace.position;
+            if ((t2 === 0 ? 1 / t2 < 0 : t2 < 0) || t2 > t1.string.length)
+              A.throwExpression(A.ArgumentError$("Invalid position " + t2, _null));
+            t1._string_scanner$_position = t2;
+            return t1._lastMatch = null;
+          }
+          operator = "or";
+        }
+        _this.whitespace$0();
+        right = _this._supportsConditionInParens$0();
+        t4 = operation == null ? new A.SupportsInterpolation(expression, t3) : operation;
+        endPosition = t1._string_scanner$_position;
+        t5 = t1._sourceFile;
+        t6 = new A._FileSpan(t5, t2, endPosition);
+        t6._FileSpan$3(t5, t2, endPosition);
+        operation = new A.SupportsOperation(t4, right, operator, t6);
+        lowerOperator = operator.toLowerCase();
+        if (lowerOperator !== "and" && lowerOperator !== "or")
+          A.throwExpression(A.ArgumentError$value(operator, "operator", 'may only be "and" or "or".'));
+        _this.whitespace$0();
+      }
+      return operation;
+    },
+    _lookingAtInterpolatedIdentifier$0() {
+      var _0_0,
+        t1 = this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_1_0 == null) {
+          t1 = false;
+          break $label0$0;
+        }
+        if (_1_0 === 95 || A.CharacterExtension_get_isAlphabetic(_1_0) || _1_0 >= 128 || 92 === _1_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (35 === _1_0) {
+          t1 = t1.peekChar$1(1) === 123;
+          break $label0$0;
+        }
+        if (45 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label1$1: {
+            if (_0_0 == null) {
+              t1 = false;
+              break $label1$1;
+            }
+            if (35 === _0_0) {
+              t1 = t1.peekChar$1(2) === 123;
+              break $label1$1;
+            }
+            if (_0_0 === 95 || A.CharacterExtension_get_isAlphabetic(_0_0) || _0_0 >= 128 || 92 === _0_0 || 45 === _0_0) {
+              t1 = true;
+              break $label1$1;
+            }
+            t1 = false;
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _lookingAtPotentialPropertyHack$0() {
+      var t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (58 === _0_0 || 42 === _0_0 || 46 === _0_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (35 === _0_0) {
+          t1 = t1.peekChar$1(1) !== 123;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _lookingAtInterpolatedIdentifierBody$0() {
+      var t2,
+        t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = false;
+          break $label0$0;
+        }
+        if (!(_0_0 === 95 || A.CharacterExtension_get_isAlphabetic(_0_0) || _0_0 >= 128))
+          t2 = _0_0 >= 48 && _0_0 <= 57 || _0_0 === 45;
+        else
+          t2 = true;
+        if (t2 || 92 === _0_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (35 === _0_0) {
+          t1 = t1.peekChar$1(1) === 123;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _lookingAtExpression$0() {
+      var _0_0,
+        t1 = this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_1_0 == null) {
+          t1 = false;
+          break $label0$0;
+        }
+        if (46 === _1_0) {
+          t1 = t1.peekChar$1(1) !== 46;
+          break $label0$0;
+        }
+        if (33 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label1$1: {
+            if (_0_0 != null)
+              if (105 !== _0_0)
+                if (73 !== _0_0)
+                  t1 = _0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12;
+                else
+                  t1 = true;
+              else
+                t1 = true;
+            else
+              t1 = true;
+            if (t1)
+              break $label1$1;
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        if (40 !== _1_0)
+          if (47 !== _1_0)
+            if (91 !== _1_0)
+              if (39 !== _1_0)
+                if (34 !== _1_0)
+                  if (35 !== _1_0)
+                    if (43 !== _1_0)
+                      if (45 !== _1_0)
+                        if (92 !== _1_0)
+                          if (36 !== _1_0)
+                            if (38 !== _1_0)
+                              if (!(_1_0 === 95 || A.CharacterExtension_get_isAlphabetic(_1_0) || _1_0 >= 128))
+                                t1 = _1_0 >= 48 && _1_0 <= 57;
+                              else
+                                t1 = true;
+                            else
+                              t1 = true;
+                          else
+                            t1 = true;
+                        else
+                          t1 = true;
+                      else
+                        t1 = true;
+                    else
+                      t1 = true;
+                  else
+                    t1 = true;
+                else
+                  t1 = true;
+              else
+                t1 = true;
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+        if (t1) {
+          t1 = true;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _withChildren$1$3(child, start, create) {
+      var result = create.call$2(this.children$1(0, child), this.scanner.spanFrom$1(start));
+      this.whitespaceWithoutComments$0();
+      return result;
+    },
+    _withChildren$3(child, start, create) {
+      return this._withChildren$1$3(child, start, create, type$.dynamic);
+    },
+    _urlString$0() {
+      var innerError, stackTrace, t2, exception,
+        t1 = this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        url = this.string$0();
+      try {
+        t2 = A.Uri_parse(url);
+        return t2;
+      } catch (exception) {
+        t2 = A.unwrapException(exception);
+        if (type$.FormatException._is(t2)) {
+          innerError = t2;
+          stackTrace = A.getTraceFromException(exception);
+          this.error$3(0, "Invalid URL: " + J.get$message$x(innerError), t1.spanFrom$1(start), stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _publicIdentifier$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        result = _this.identifier$0();
+      _this._assertPublic$2(result, new A.StylesheetParser__publicIdentifier_closure(_this, new A._SpanScannerState(t1, t2)));
+      return result;
+    },
+    _assertPublic$2(identifier, span) {
+      var first = identifier.charCodeAt(0);
+      if (!(first === 45 || first === 95))
+        return;
+      this.error$2(0, string$.Privat, span.call$0());
+    },
+    get$plainCss() {
+      return false;
+    }
+  };
+  A.StylesheetParser_parse_closure.prototype = {
+    call$0() {
+      var statements, t4,
+        t1 = this.$this,
+        t2 = t1.scanner,
+        t3 = t2._string_scanner$_position;
+      t2.scanChar$1(65279);
+      statements = t1.statements$1(new A.StylesheetParser_parse__closure(t1));
+      t2.expectDone$0();
+      t4 = t1._globalVariables.get$values(0);
+      B.JSArray_methods.addAll$1(statements, A.MappedIterable_MappedIterable(t4, new A.StylesheetParser_parse__closure0(), A._instanceType(t4)._eval$1("Iterable.E"), type$.Statement));
+      return A.Stylesheet$internal(statements, t2.spanFrom$1(new A._SpanScannerState(t2, t3)), t1.get$plainCss());
+    },
+    $signature: 463
+  };
+  A.StylesheetParser_parse__closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      if (t1.scanner.scan$1("@charset")) {
+        t1.whitespace$0();
+        t1.string$0();
+        return null;
+      }
+      return t1._statement$1$root(true);
+    },
+    $signature: 462
+  };
+  A.StylesheetParser_parse__closure0.prototype = {
+    call$1(declaration) {
+      var t1 = declaration.expression;
+      return A.VariableDeclaration$(declaration.name, new A.NullExpression(t1.get$span(t1)), declaration.span, null, false, true, null);
+    },
+    $signature: 456
+  };
+  A.StylesheetParser_parseArgumentDeclaration_closure.prototype = {
+    call$0() {
+      var $arguments,
+        t1 = this.$this,
+        t2 = t1.scanner;
+      t2.expectChar$2$name(64, "@-rule");
+      t1.identifier$0();
+      t1.whitespace$0();
+      t1.identifier$0();
+      $arguments = t1._argumentDeclaration$0();
+      t1.whitespace$0();
+      t2.expectChar$1(123);
+      return $arguments;
+    },
+    $signature: 444
+  };
+  A.StylesheetParser_parseVariableDeclaration_closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1.lookingAtIdentifier$0() ? t1._variableDeclarationWithNamespace$0() : t1.variableDeclarationWithoutNamespace$0();
+    },
+    $signature: 155
+  };
+  A.StylesheetParser_parseUseRule_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1.scanner,
+        t3 = t2._string_scanner$_position;
+      t2.expectChar$2$name(64, "@-rule");
+      t1.expectIdentifier$1("use");
+      t1.whitespace$0();
+      return t1._useRule$1(new A._SpanScannerState(t2, t3));
+    },
+    $signature: 443
+  };
+  A.StylesheetParser__parseSingleProduction_closure.prototype = {
+    call$0() {
+      var result = this.production.call$0();
+      this.$this.scanner.expectDone$0();
+      return result;
+    },
+    $signature() {
+      return this.T._eval$1("0()");
+    }
+  };
+  A.StylesheetParser__statement_closure.prototype = {
+    call$0() {
+      return this.$this._statement$0();
+    },
+    $signature: 124
+  };
+  A.StylesheetParser_variableDeclarationWithoutNamespace_closure.prototype = {
+    call$0() {
+      return this.$this.scanner.spanFrom$1(this.start);
+    },
+    $signature: 26
+  };
+  A.StylesheetParser_variableDeclarationWithoutNamespace_closure0.prototype = {
+    call$0() {
+      return this.declaration;
+    },
+    $signature: 155
+  };
+  A.StylesheetParser__styleRule_closure.prototype = {
+    call$2(children, span) {
+      var _this = this,
+        t1 = _this.$this;
+      if (t1.get$indented() && children.length === 0)
+        t1.logger.warn$2$span(0, string$.This_s, _this._box_0.interpolation.span);
+      t1._inStyleRule = _this.wasInStyleRule;
+      return A.StyleRule$(_this._box_0.interpolation, children, t1.scanner.spanFrom$1(_this.start));
+    },
+    $signature: 439
+  };
+  A.StylesheetParser__tryDeclarationChildren_closure.prototype = {
+    call$2(children, span) {
+      return A.Declaration$nested(this.name, children, span, this.value);
+    },
+    $signature: 435
+  };
+  A.StylesheetParser__atRootRule_closure.prototype = {
+    call$2(children, span) {
+      return A.AtRootRule$(children, span, this.query);
+    },
+    $signature: 156
+  };
+  A.StylesheetParser__atRootRule_closure0.prototype = {
+    call$2(children, span) {
+      return A.AtRootRule$(children, span, null);
+    },
+    $signature: 156
+  };
+  A.StylesheetParser__eachRule_closure.prototype = {
+    call$2(children, span) {
+      var _this = this;
+      _this.$this._inControlDirective = _this.wasInControlDirective;
+      return A.EachRule$(_this.variables, _this.list, children, span);
+    },
+    $signature: 433
+  };
+  A.StylesheetParser__functionRule_closure.prototype = {
+    call$2(children, span) {
+      return A.FunctionRule$(this.name, this.$arguments, children, span, this.precedingComment);
+    },
+    $signature: 432
+  };
+  A.StylesheetParser__forRule_closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      if (!t1.lookingAtIdentifier$0())
+        return false;
+      if (t1.scanIdentifier$1("to"))
+        return this._box_0.exclusive = true;
+      else if (t1.scanIdentifier$1("through")) {
+        this._box_0.exclusive = false;
+        return true;
+      } else
+        return false;
+    },
+    $signature: 30
+  };
+  A.StylesheetParser__forRule_closure0.prototype = {
+    call$2(children, span) {
+      var t1, _this = this;
+      _this.$this._inControlDirective = _this.wasInControlDirective;
+      t1 = _this._box_0.exclusive;
+      t1.toString;
+      return A.ForRule$(_this.variable, _this.from, _this.to, children, span, t1);
+    },
+    $signature: 428
+  };
+  A.StylesheetParser__memberList_closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      if (t1.scanner.peekChar$0() === 36)
+        this.variables.add$1(0, t1.variableName$0());
+      else
+        this.identifiers.add$1(0, t1.identifier$1$normalize(true));
+    },
+    $signature: 1
+  };
+  A.StylesheetParser__includeRule_closure.prototype = {
+    call$2(children, span) {
+      return A.ContentBlock$(this.contentArguments_, children, span);
+    },
+    $signature: 427
+  };
+  A.StylesheetParser_mediaRule_closure.prototype = {
+    call$2(children, span) {
+      return A.MediaRule$(this.query, children, span);
+    },
+    $signature: 426
+  };
+  A.StylesheetParser__mixinRule_closure.prototype = {
+    call$2(children, span) {
+      var _this = this;
+      _this.$this._stylesheet$_inMixin = false;
+      return A.MixinRule$(_this.name, _this.$arguments, children, span, _this.precedingComment);
+    },
+    $signature: 424
+  };
+  A.StylesheetParser_mozDocumentRule_closure.prototype = {
+    call$2(children, span) {
+      var _this = this;
+      if (_this._box_0.needsDeprecationWarning)
+        A.WarnForDeprecation_warnForDeprecation(_this.$this.logger, B.Deprecation_uNF, string$.x40_moz_, span, null);
+      return A.AtRule$(_this.name, span, children, _this.value);
+    },
+    $signature: 157
+  };
+  A.StylesheetParser_supportsRule_closure.prototype = {
+    call$2(children, span) {
+      return A.SupportsRule$(this.condition, children, span);
+    },
+    $signature: 423
+  };
+  A.StylesheetParser__whileRule_closure.prototype = {
+    call$2(children, span) {
+      this.$this._inControlDirective = this.wasInControlDirective;
+      return A.WhileRule$(this.condition, children, span);
+    },
+    $signature: 419
+  };
+  A.StylesheetParser_unknownAtRule_closure.prototype = {
+    call$2(children, span) {
+      return A.AtRule$(this.name, span, children, this._box_0.value);
+    },
+    $signature: 157
+  };
+  A.StylesheetParser__expression_resetState.prototype = {
+    call$0() {
+      var t2,
+        t1 = this._box_0;
+      t1.operands_ = t1.operators_ = t1.spaceExpressions_ = t1.commaExpressions_ = null;
+      t2 = this.$this;
+      t2.scanner.set$state(this.start);
+      t1.allowSlash = true;
+      t1.singleExpression_ = t2._singleExpression$0();
+    },
+    $signature: 0
+  };
+  A.StylesheetParser__expression_resolveOneOperation.prototype = {
+    call$0() {
+      var t2, t3, t4, t5, t6, t7, _this = this,
+        t1 = _this._box_0,
+        operator = t1.operators_.pop(),
+        left = t1.operands_.pop(),
+        right = t1.singleExpression_;
+      if (right == null) {
+        t2 = _this.$this.scanner;
+        t3 = operator.operator.length;
+        t2.error$3$length$position(0, "Expected expression.", t3, t2._string_scanner$_position - t3);
+      }
+      if (t1.allowSlash) {
+        t2 = _this.$this;
+        t2 = !t2._inParentheses && operator === B.BinaryOperator_U77 && t2._isSlashOperand$1(left) && t2._isSlashOperand$1(right);
+      } else
+        t2 = false;
+      if (t2)
+        t1.singleExpression_ = new A.BinaryOperationExpression(B.BinaryOperator_U77, left, right, true);
+      else {
+        t1.singleExpression_ = new A.BinaryOperationExpression(operator, left, right, false);
+        t2 = t1.allowSlash = false;
+        if (B.BinaryOperator_u15 === operator || B.BinaryOperator_SjO === operator) {
+          t3 = _this.$this;
+          t4 = t3.scanner.string;
+          t5 = right.get$span(right);
+          t5 = t5.get$start(t5);
+          t6 = right.get$span(right);
+          t7 = operator.operator;
+          if (B.JSString_methods.substring$2(t4, t5.offset - 1, t6.get$start(t6).offset) === t7) {
+            t2 = left.get$span(left);
+            t2 = t4.charCodeAt(t2.get$end(t2).offset);
+            t2 = t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12;
+          }
+          if (t2) {
+            t2 = left.toString$0(0);
+            t4 = right.toString$0(0);
+            t5 = left.toString$0(0);
+            t6 = right.toString$0(0);
+            t1 = t1.singleExpression_;
+            A.WarnForDeprecation_warnForDeprecation(t3.logger, B.Deprecation_2Vk, "This operation is parsed as:\n\n    " + t2 + " " + t7 + " " + t4 + string$.x0a_but_ + t5 + " (" + t7 + t6 + ")\n\nAdd a space after " + t7 + string$.x20to_cl, t1.get$span(t1), null);
+          }
+        }
+      }
+    },
+    $signature: 0
+  };
+  A.StylesheetParser__expression_resolveOperations.prototype = {
+    call$0() {
+      var t1,
+        operators = this._box_0.operators_;
+      if (operators == null)
+        return;
+      for (t1 = this.resolveOneOperation; operators.length !== 0;)
+        t1.call$0();
+    },
+    $signature: 0
+  };
+  A.StylesheetParser__expression_addSingleExpression.prototype = {
+    call$1(expression) {
+      var t2, spaceExpressions, _this = this,
+        t1 = _this._box_0;
+      if (t1.singleExpression_ != null) {
+        t2 = _this.$this;
+        if (t2._inParentheses) {
+          t2._inParentheses = false;
+          if (t1.allowSlash) {
+            _this.resetState.call$0();
+            return;
+          }
+        }
+        spaceExpressions = t1.spaceExpressions_;
+        if (spaceExpressions == null)
+          spaceExpressions = t1.spaceExpressions_ = A._setArrayType([], type$.JSArray_Expression);
+        _this.resolveOperations.call$0();
+        t2 = t1.singleExpression_;
+        t2.toString;
+        spaceExpressions.push(t2);
+        t1.allowSlash = true;
+      }
+      t1.singleExpression_ = expression;
+    },
+    $signature: 416
+  };
+  A.StylesheetParser__expression_addOperator.prototype = {
+    call$1(operator) {
+      var t2, t3, operators, operands, t4, singleExpression,
+        t1 = this.$this;
+      if (t1.get$plainCss() && operator !== B.BinaryOperator_wdM && operator !== B.BinaryOperator_u15 && operator !== B.BinaryOperator_SjO && operator !== B.BinaryOperator_2No && operator !== B.BinaryOperator_U77) {
+        t2 = t1.scanner;
+        t3 = operator.operator.length;
+        t2.error$3$length$position(0, "Operators aren't allowed in plain CSS.", t3, t2._string_scanner$_position - t3);
+      }
+      t2 = this._box_0;
+      t2.allowSlash = t2.allowSlash && operator === B.BinaryOperator_U77;
+      operators = t2.operators_;
+      if (operators == null)
+        operators = t2.operators_ = A._setArrayType([], type$.JSArray_BinaryOperator);
+      operands = t2.operands_;
+      if (operands == null)
+        operands = t2.operands_ = A._setArrayType([], type$.JSArray_Expression);
+      t3 = this.resolveOneOperation;
+      t4 = operator.precedence;
+      while (true) {
+        if (!(operators.length !== 0 && B.JSArray_methods.get$last(operators).precedence >= t4))
+          break;
+        t3.call$0();
+      }
+      operators.push(operator);
+      singleExpression = t2.singleExpression_;
+      if (singleExpression == null) {
+        t3 = t1.scanner;
+        t4 = operator.operator.length;
+        t3.error$3$length$position(0, "Expected expression.", t4, t3._string_scanner$_position - t4);
+      }
+      operands.push(singleExpression);
+      t1.whitespace$0();
+      t2.singleExpression_ = t1._singleExpression$0();
+    },
+    $signature: 415
+  };
+  A.StylesheetParser__expression_resolveSpaceExpressions.prototype = {
+    call$0() {
+      var t1, spaceExpressions, singleExpression, t2;
+      this.resolveOperations.call$0();
+      t1 = this._box_0;
+      spaceExpressions = t1.spaceExpressions_;
+      if (spaceExpressions == null)
+        return;
+      singleExpression = t1.singleExpression_;
+      if (singleExpression == null)
+        this.$this.scanner.error$1(0, "Expected expression.");
+      spaceExpressions.push(singleExpression);
+      t2 = B.JSArray_methods.get$first(spaceExpressions);
+      t2 = t2.get$span(t2).expand$1(0, singleExpression.get$span(singleExpression));
+      t1.singleExpression_ = new A.ListExpression(A.List_List$unmodifiable(spaceExpressions, type$.Expression), B.ListSeparator_nbm, false, t2);
+      t1.spaceExpressions_ = null;
+    },
+    $signature: 0
+  };
+  A.StylesheetParser_expressionUntilComma_closure.prototype = {
+    call$0() {
+      return this.$this.scanner.peekChar$0() === 44;
+    },
+    $signature: 30
+  };
+  A.StylesheetParser__isHexColor_closure.prototype = {
+    call$1(char) {
+      return A.CharacterExtension_get_isHex(char);
+    },
+    $signature: 45
+  };
+  A.StylesheetParser__unicodeRange_closure.prototype = {
+    call$1(char) {
+      return char != null && A.CharacterExtension_get_isHex(char);
+    },
+    $signature: 28
+  };
+  A.StylesheetParser__unicodeRange_closure0.prototype = {
+    call$1(char) {
+      return char != null && A.CharacterExtension_get_isHex(char);
+    },
+    $signature: 28
+  };
+  A.StylesheetParser_namespacedExpression_closure.prototype = {
+    call$0() {
+      return this.$this.scanner.spanFrom$1(this.start);
+    },
+    $signature: 26
+  };
+  A.StylesheetParser_trySpecialFunction_closure.prototype = {
+    call$1(contents) {
+      return new A.StringExpression(contents, false);
+    },
+    $signature: 401
+  };
+  A.StylesheetParser__expressionUntilComparison_closure.prototype = {
+    call$0() {
+      var t1 = this.$this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (61 === _0_0) {
+          t1 = t1.peekChar$1(1) !== 61;
+          break $label0$0;
+        }
+        if (60 === _0_0 || 62 === _0_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 30
+  };
+  A.StylesheetParser__publicIdentifier_closure.prototype = {
+    call$0() {
+      return this.$this.scanner.spanFrom$1(this.start);
+    },
+    $signature: 26
+  };
+  A.StylesheetGraph.prototype = {
+    modifiedSince$3(url, since, baseImporter) {
+      var node = this._stylesheet_graph$_add$3(url, baseImporter, null);
+      if (node == null)
+        return true;
+      return new A.StylesheetGraph_modifiedSince_transitiveModificationTime(this).call$1(node)._value > since._value;
+    },
+    _stylesheet_graph$_add$3(url, baseImporter, baseUrl) {
+      var importer, canonicalUrl, _this = this,
+        result = _this._ignoreErrors$1(new A.StylesheetGraph__add_closure(_this, url, baseImporter, baseUrl));
+      if (type$.Record_3_nullable_Object_and_nullable_Object_and_nullable_Object_originalUrl._is(result)) {
+        importer = result._0;
+        canonicalUrl = result._1;
+        _this.addCanonical$3(importer, canonicalUrl, result._2);
+        return _this._nodes.$index(0, canonicalUrl);
+      } else
+        return null;
+    },
+    addCanonical$4$recanonicalize(importer, canonicalUrl, originalUrl, recanonicalize) {
+      var stylesheet, _this = this,
+        t1 = _this._nodes;
+      if (t1.$index(0, canonicalUrl) != null)
+        return B.Set_empty3;
+      stylesheet = _this._ignoreErrors$1(new A.StylesheetGraph_addCanonical_closure(_this, importer, canonicalUrl, originalUrl));
+      if (stylesheet == null)
+        return B.Set_empty3;
+      t1.$indexSet(0, canonicalUrl, A.StylesheetNode$_(stylesheet, importer, canonicalUrl, _this._upstreamNodes$3(stylesheet, importer, canonicalUrl)));
+      return recanonicalize ? _this._recanonicalizeImports$2(importer, canonicalUrl) : B.Set_empty3;
+    },
+    addCanonical$3(importer, canonicalUrl, originalUrl) {
+      return this.addCanonical$4$recanonicalize(importer, canonicalUrl, originalUrl, true);
+    },
+    _upstreamNodes$3(stylesheet, baseImporter, baseUrl) {
+      var t6, t7, t8, t9, t10,
+        t1 = type$.Uri,
+        active = A.LinkedHashSet_LinkedHashSet$_literal([baseUrl], t1),
+        t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1),
+        t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1),
+        t4 = A.LinkedHashSet_LinkedHashSet$_empty(t1),
+        t5 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      new A._FindDependenciesVisitor(t2, t3, t4, t5, A.LinkedHashSet_LinkedHashSet$_empty(type$.nullable_String)).visitChildren$1(stylesheet.children);
+      t6 = type$.UnmodifiableSetView_Uri;
+      t2 = new A.UnmodifiableSetView0(t2, t6);
+      t3 = new A.UnmodifiableSetView0(t3, t6);
+      t4 = new A.UnmodifiableSetView0(t4, t6);
+      t7 = type$.nullable_StylesheetNode;
+      t8 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t7);
+      for (t9 = new A.UnionSet(A.LinkedHashSet_LinkedHashSet$_literal([t2, t3, t4], type$.Set_Uri), type$.UnionSet_Uri).get$_union_set$_iterable(), t9 = t9.get$iterator(t9); t9.moveNext$0();) {
+        t10 = t9.get$current(t9);
+        t8.$indexSet(0, t10, this._nodeFor$4(t10, baseImporter, baseUrl, active));
+      }
+      t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t7);
+      for (t2 = new A.DependencyReport(t2, t3, t4, new A.UnmodifiableSetView0(t5, t6)).imports._base.get$iterator(0); t2.moveNext$0();) {
+        t3 = t2.get$current(0);
+        t1.$indexSet(0, t3, this._nodeFor$5$forImport(t3, baseImporter, baseUrl, active, true));
+      }
+      return new A._Record_2_imports_modules(t1, t8);
+    },
+    reload$1(canonicalUrl) {
+      var stylesheet, upstream, _this = this,
+        node = _this._nodes.$index(0, canonicalUrl);
+      if (node == null)
+        throw A.wrapException(A.StateError$(canonicalUrl.toString$0(0) + " is not in the dependency graph."));
+      _this._transitiveModificationTimes.clear$0(0);
+      _this.importCache.clearImport$1(canonicalUrl);
+      stylesheet = _this._ignoreErrors$1(new A.StylesheetGraph_reload_closure(_this, node, canonicalUrl));
+      if (stylesheet == null)
+        return false;
+      node._stylesheet = stylesheet;
+      upstream = _this._upstreamNodes$3(stylesheet, node.importer, canonicalUrl);
+      node._replaceUpstream$2(upstream._1, upstream._0);
+      return true;
+    },
+    _recanonicalizeImports$2(importer, canonicalUrl) {
+      var t1, t2, t3, t4, t5, newUpstream, newUpstreamImports, _this = this,
+        changed = A.LinkedHashSet_LinkedHashSet$_empty(type$.StylesheetNode);
+      for (t1 = _this._nodes.get$values(0).get$iterator(0), t2 = type$.UnmodifiableMapView_of_Uri_and_nullable_StylesheetNode, t3 = type$.Uri, t4 = type$.nullable_StylesheetNode; t1.moveNext$0();) {
+        t5 = t1.get$current(0);
+        newUpstream = _this._recanonicalizeImportsForNode$4$forImport(t5, importer, canonicalUrl, false);
+        newUpstreamImports = _this._recanonicalizeImportsForNode$4$forImport(t5, importer, canonicalUrl, true);
+        if (newUpstream.__js_helper$_length !== 0 || newUpstreamImports.__js_helper$_length !== 0) {
+          changed.add$1(0, t5);
+          t5._replaceUpstream$2(A.mergeMaps(new A.UnmodifiableMapView(t5._upstream, t2), newUpstream, t3, t4), A.mergeMaps(new A.UnmodifiableMapView(t5._upstreamImports, t2), newUpstreamImports, t3, t4));
+        }
+      }
+      if (changed._collection$_length !== 0)
+        _this._transitiveModificationTimes.clear$0(0);
+      return changed;
+    },
+    _recanonicalizeImportsForNode$4$forImport(node, importer, canonicalUrl, forImport) {
+      var url, result, t2, newMap, t3, t4, t5, t6, upstream, exception, newCanonicalUrl,
+        t1 = type$.UnmodifiableMapView_of_Uri_and_nullable_StylesheetNode,
+        map = forImport ? new A.UnmodifiableMapView(node._upstreamImports, t1) : new A.UnmodifiableMapView(node._upstream, t1);
+      t1 = type$.Uri;
+      t2 = type$.nullable_StylesheetNode;
+      newMap = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      for (t1 = A.MapExtensions_get_pairs(map, t1, t2), t1 = t1.get$iterator(t1), t2 = this._nodes, t3 = this.importCache, t4 = node.importer, t5 = node.canonicalUrl; t1.moveNext$0();) {
+        t6 = t1.get$current(t1);
+        url = null;
+        url = t6._0;
+        upstream = t6._1;
+        if (!importer.couldCanonicalize$2(url, canonicalUrl))
+          continue;
+        t3.clearCanonicalize$1(url);
+        result = null;
+        try {
+          result = t3.canonicalize$4$baseImporter$baseUrl$forImport(0, url, t4, t5, forImport);
+        } catch (exception) {
+        }
+        t6 = result;
+        newCanonicalUrl = t6 == null ? null : t6._1;
+        if (J.$eq$(newCanonicalUrl, upstream == null ? null : upstream.canonicalUrl))
+          continue;
+        t6 = url;
+        newMap.$indexSet(0, t6, result == null ? null : t2.$index(0, newCanonicalUrl));
+      }
+      return newMap;
+    },
+    _nodeFor$5$forImport(url, baseImporter, baseUrl, active, forImport) {
+      var canonicalUrl, t2, _1_0, stylesheet, t3, t4, node, _this = this, t1 = {},
+        result = _this._ignoreErrors$1(new A.StylesheetGraph__nodeFor_closure(_this, url, baseImporter, baseUrl, forImport));
+      if (result == null)
+        return null;
+      t1.originalUrl = t1.canonicalUrl = t1.importer = null;
+      t1.importer = result._0;
+      canonicalUrl = t1.canonicalUrl = result._1;
+      t1.originalUrl = result._2;
+      t2 = _this._nodes;
+      _1_0 = t2.$index(0, canonicalUrl);
+      if (_1_0 != null)
+        return _1_0;
+      if (active.contains$1(0, canonicalUrl))
+        return null;
+      stylesheet = _this._ignoreErrors$1(new A.StylesheetGraph__nodeFor_closure0(t1, _this));
+      if (stylesheet == null)
+        return null;
+      active.add$1(0, t1.canonicalUrl);
+      t3 = t1.importer;
+      t4 = t1.canonicalUrl;
+      node = A.StylesheetNode$_(stylesheet, t3, t4, _this._upstreamNodes$3(stylesheet, t3, t4));
+      active.remove$1(0, t1.canonicalUrl);
+      t2.$indexSet(0, t1.canonicalUrl, node);
+      return node;
+    },
+    _nodeFor$4(url, baseImporter, baseUrl, active) {
+      return this._nodeFor$5$forImport(url, baseImporter, baseUrl, active, false);
+    },
+    _ignoreErrors$1$1(callback) {
+      var t1, exception;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        return null;
+      }
+    },
+    _ignoreErrors$1(callback) {
+      return this._ignoreErrors$1$1(callback, type$.dynamic);
+    }
+  };
+  A.StylesheetGraph_modifiedSince_transitiveModificationTime.prototype = {
+    call$1(node) {
+      return this.$this._transitiveModificationTimes.putIfAbsent$2(node.canonicalUrl, new A.StylesheetGraph_modifiedSince_transitiveModificationTime_closure(node, this));
+    },
+    $signature: 395
+  };
+  A.StylesheetGraph_modifiedSince_transitiveModificationTime_closure.prototype = {
+    call$0() {
+      var t2, t3, upstreamTime,
+        t1 = this.node,
+        latest = t1.importer.modificationTime$1(t1.canonicalUrl);
+      for (t1 = t1._upstream.get$values(0).followedBy$1(0, t1._upstreamImports.get$values(0)), t1 = new A.FollowedByIterator(J.get$iterator$ax(t1.__internal$_first), t1._second), t2 = this.transitiveModificationTime; t1.moveNext$0();) {
+        t3 = t1._currentIterator;
+        t3 = t3.get$current(t3);
+        upstreamTime = t3 == null ? new A.DateTime(Date.now(), false) : t2.call$1(t3);
+        if (upstreamTime._value > latest._value)
+          latest = upstreamTime;
+      }
+      return latest;
+    },
+    $signature: 149
+  };
+  A.StylesheetGraph__add_closure.prototype = {
+    call$0() {
+      var _this = this;
+      return _this.$this.importCache.canonicalize$3$baseImporter$baseUrl(0, _this.url, _this.baseImporter, _this.baseUrl);
+    },
+    $signature: 119
+  };
+  A.StylesheetGraph_addCanonical_closure.prototype = {
+    call$0() {
+      var _this = this;
+      return _this.$this.importCache.importCanonical$3$originalUrl(_this.importer, _this.canonicalUrl, _this.originalUrl);
+    },
+    $signature: 91
+  };
+  A.StylesheetGraph_reload_closure.prototype = {
+    call$0() {
+      return this.$this.importCache.importCanonical$2(this.node.importer, this.canonicalUrl);
+    },
+    $signature: 91
+  };
+  A.StylesheetGraph__nodeFor_closure.prototype = {
+    call$0() {
+      var _this = this;
+      return _this.$this.importCache.canonicalize$4$baseImporter$baseUrl$forImport(0, _this.url, _this.baseImporter, _this.baseUrl, _this.forImport);
+    },
+    $signature: 119
+  };
+  A.StylesheetGraph__nodeFor_closure0.prototype = {
+    call$0() {
+      var t1 = this._box_0;
+      return this.$this.importCache.importCanonical$3$originalUrl(t1.importer, t1.canonicalUrl, t1.originalUrl);
+    },
+    $signature: 91
+  };
+  A.StylesheetNode.prototype = {
+    StylesheetNode$_$4(_stylesheet, importer, canonicalUrl, allUpstream) {
+      var t1, t2;
+      for (t1 = this._upstream.get$values(0).followedBy$1(0, this._upstreamImports.get$values(0)), t1 = new A.FollowedByIterator(J.get$iterator$ax(t1.__internal$_first), t1._second); t1.moveNext$0();) {
+        t2 = t1._currentIterator;
+        t2 = t2.get$current(t2);
+        if (t2 != null)
+          t2._downstream.add$1(0, this);
+      }
+    },
+    _replaceUpstream$2(newUpstream, newUpstreamImports) {
+      var t3, oldUpstream, newUpstreamSet, _this = this,
+        t1 = type$.nullable_StylesheetNode,
+        t2 = A.LinkedHashSet_LinkedHashSet$of(_this._upstream.get$values(0), t1);
+      t2.addAll$1(0, _this._upstreamImports.get$values(0));
+      t3 = type$.StylesheetNode;
+      oldUpstream = A.SetExtension_removeNull(t2, t3);
+      t1 = A.LinkedHashSet_LinkedHashSet$of(newUpstream.get$values(0), t1);
+      t1.addAll$1(0, newUpstreamImports.get$values(0));
+      newUpstreamSet = A.SetExtension_removeNull(t1, t3);
+      for (t1 = oldUpstream.difference$1(newUpstreamSet), t1 = t1.get$iterator(t1); t1.moveNext$0();)
+        t1.get$current(t1)._downstream.remove$1(0, _this);
+      for (t1 = newUpstreamSet.difference$1(oldUpstream), t1 = t1.get$iterator(t1); t1.moveNext$0();)
+        t1.get$current(t1)._downstream.add$1(0, _this);
+      _this._upstream = newUpstream;
+      _this._upstreamImports = newUpstreamImports;
+    },
+    _stylesheet_graph$_remove$0() {
+      var t1, t2, t3, t4, _i, url, _this = this;
+      for (t1 = A.LinkedHashSet_LinkedHashSet$of(_this._upstream.get$values(0), type$.nullable_StylesheetNode), t1.addAll$1(0, _this._upstreamImports.get$values(0)), t1 = A._LinkedHashSetIterator$(t1, t1._modifications, A._instanceType(t1)._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (t3 == null)
+          continue;
+        t3._downstream.remove$1(0, _this);
+      }
+      for (t1 = _this._downstream.get$iterator(0); t1.moveNext$0();) {
+        t2 = t1.get$current(0);
+        for (t3 = t2._upstream, t4 = A._instanceType(t3)._eval$1("LinkedHashMapKeyIterable<1>"), t4 = A.List_List$of(new A.LinkedHashMapKeyIterable(t3, t4), true, t4._eval$1("Iterable.E")), t3 = t4.length, _i = 0; _i < t3; ++_i) {
+          url = t4[_i];
+          if (J.$eq$(t2._upstream.$index(0, url), _this)) {
+            t2._upstream.$indexSet(0, url, null);
+            break;
+          }
+        }
+        for (t3 = t2._upstreamImports, t4 = A._instanceType(t3)._eval$1("LinkedHashMapKeyIterable<1>"), t4 = A.List_List$of(new A.LinkedHashMapKeyIterable(t3, t4), true, t4._eval$1("Iterable.E")), t3 = t4.length, _i = 0; _i < t3; ++_i) {
+          url = t4[_i];
+          if (J.$eq$(t2._upstreamImports.$index(0, url), _this)) {
+            t2._upstreamImports.$indexSet(0, url, null);
+            break;
+          }
+        }
+      }
+    },
+    toString$0(_) {
+      var t1 = this._stylesheet.span;
+      t1 = A.NullableExtension_andThen(t1.get$sourceUrl(t1), A.path__prettyUri$closure());
+      return t1 == null ? "<unknown>" : t1;
+    }
+  };
+  A.Syntax.prototype = {
+    _enumToString$0() {
+      return "Syntax." + this._name;
+    },
+    toString$0(_) {
+      return this._syntax$_name;
+    }
+  };
+  A.Box.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return this.$ti._is(other) && other._box$_inner === this._box$_inner;
+    },
+    get$hashCode(_) {
+      return A.Primitives_objectHashCode(this._box$_inner);
+    }
+  };
+  A.ModifiableBox.prototype = {};
+  A.LazyFileSpan.prototype = {
+    get$span(_) {
+      var t1 = this._lazy_file_span$_span;
+      return t1 == null ? this._lazy_file_span$_span = this._builder.call$0() : t1;
+    },
+    compareTo$1(_, other) {
+      return this.get$span(0).compareTo$1(0, other);
+    },
+    get$context(_) {
+      var t1 = this.get$span(0);
+      return t1.get$context(t1);
+    },
+    get$end(_) {
+      var t1 = this.get$span(0);
+      return t1.get$end(t1);
+    },
+    expand$1(_, other) {
+      return this.get$span(0).expand$1(0, other);
+    },
+    get$file(_) {
+      var t1 = this.get$span(0);
+      return t1.get$file(t1);
+    },
+    highlight$1$color(color) {
+      return this.get$span(0).highlight$1$color(color);
+    },
+    get$length(_) {
+      var t1 = this.get$span(0);
+      return t1.get$length(t1);
+    },
+    message$2$color(_, message, color) {
+      return this.get$span(0).message$2$color(0, message, color);
+    },
+    message$1(_, message) {
+      return this.message$2$color(0, message, null);
+    },
+    get$sourceUrl(_) {
+      var t1 = this.get$span(0);
+      return t1.get$sourceUrl(t1);
+    },
+    get$start(_) {
+      var t1 = this.get$span(0);
+      return t1.get$start(t1);
+    },
+    get$text() {
+      return this.get$span(0).get$text();
+    },
+    $isComparable: 1,
+    $isFileSpan: 1,
+    $isSourceSpan: 1,
+    $isSourceSpanWithContext: 1
+  };
+  A.LimitedMapView.prototype = {
+    get$keys(_) {
+      return this._limited_map_view$_keys;
+    },
+    get$length(_) {
+      return this._limited_map_view$_keys._collection$_length;
+    },
+    get$isEmpty(_) {
+      return this._limited_map_view$_keys._collection$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._limited_map_view$_keys._collection$_length !== 0;
+    },
+    $index(_, key) {
+      return this._limited_map_view$_keys.contains$1(0, key) ? this._limited_map_view$_map.$index(0, key) : null;
+    },
+    containsKey$1(key) {
+      return this._limited_map_view$_keys.contains$1(0, key);
+    },
+    remove$1(_, key) {
+      return this._limited_map_view$_keys.contains$1(0, key) ? this._limited_map_view$_map.remove$1(0, key) : null;
+    }
+  };
+  A.MapExtensions_get_pairs_closure.prototype = {
+    call$1(e) {
+      return new A._Record_2(e.key, e.value);
+    },
+    $signature() {
+      return this.K._eval$1("@<0>")._bind$1(this.V)._eval$1("+(1,2)(MapEntry<1,2>)");
+    }
+  };
+  A.MergedMapView.prototype = {
+    get$keys(_) {
+      var t1 = this._mapsByKey;
+      return new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>"));
+    },
+    get$length(_) {
+      return this._mapsByKey.__js_helper$_length;
+    },
+    get$isEmpty(_) {
+      return this._mapsByKey.__js_helper$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._mapsByKey.__js_helper$_length !== 0;
+    },
+    MergedMapView$1(maps, $K, $V) {
+      var t1, t2, t3, _i, map, t4, t5, t6;
+      for (t1 = maps.length, t2 = this._mapsByKey, t3 = $K._eval$1("@<0>")._bind$1($V)._eval$1("MergedMapView<1,2>"), _i = 0; _i < maps.length; maps.length === t1 || (0, A.throwConcurrentModificationError)(maps), ++_i) {
+        map = maps[_i];
+        if (t3._is(map))
+          for (t4 = map._mapsByKey.get$values(0), t5 = A._instanceType(t4), t5 = t5._eval$1("@<1>")._bind$1(t5._rest[1]), t4 = new A.MappedIterator(J.get$iterator$ax(t4.__internal$_iterable), t4._f, t5._eval$1("MappedIterator<1,2>")), t5 = t5._rest[1]; t4.moveNext$0();) {
+            t6 = t4.__internal$_current;
+            if (t6 == null)
+              t6 = t5._as(t6);
+            A.setAll(t2, t6.get$keys(t6), t6);
+          }
+        else
+          A.setAll(t2, map.get$keys(map), map);
+      }
+    },
+    $index(_, key) {
+      var t1 = this._mapsByKey.$index(0, this.$ti._precomputed1._as(key));
+      return t1 == null ? null : t1.$index(0, key);
+    },
+    $indexSet(_, key, value) {
+      var _0_0 = this._mapsByKey.$index(0, key);
+      if (_0_0 != null)
+        _0_0.$indexSet(0, key, value);
+      else
+        throw A.wrapException(A.UnsupportedError$(string$.New_en));
+    },
+    remove$1(_, key) {
+      throw A.wrapException(A.UnsupportedError$(string$.Entrie));
+    },
+    containsKey$1(key) {
+      return this._mapsByKey.containsKey$1(key);
+    }
+  };
+  A.MultiDirWatcher.prototype = {
+    watch$1(_, directory) {
+      var t1, t2, t3, t4, isParentOfExistingDir, _i, t5, _0_1, existingWatcher, future, completer;
+      for (t1 = this._watchers, t2 = A.MapExtensions_get_pairs(t1, type$.nullable_String, type$.Stream_WatchEvent).toList$0(0), t3 = t2.length, t1 = t1._map, t4 = this._group, isParentOfExistingDir = false, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        t5 = t2[_i];
+        _0_1 = t5._0;
+        _0_1.toString;
+        existingWatcher = t5._1;
+        if (!isParentOfExistingDir) {
+          t5 = $.$get$context();
+          t5 = t5._isWithinOrEquals$2(_0_1, directory) === B._PathRelation_equal || t5._isWithinOrEquals$2(_0_1, directory) === B._PathRelation_within;
+        } else
+          t5 = false;
+        if (t5) {
+          t1 = new A._Future($.Zone__current, type$._Future_void);
+          t1._asyncComplete$1(null);
+          return t1;
+        }
+        if ($.$get$context()._isWithinOrEquals$2(directory, _0_1) === B._PathRelation_within) {
+          t1.remove$1(0, _0_1);
+          t4.remove$1(0, existingWatcher);
+          isParentOfExistingDir = true;
+        }
+      }
+      future = A.watchDir(directory, this._poll);
+      t2 = new A._CompleterStream(type$._CompleterStream_WatchEvent);
+      completer = new A.StreamCompleter(t2, type$.StreamCompleter_WatchEvent);
+      future.then$1$2$onError(0, completer.get$setSourceStream(), completer.get$setError(), type$.void);
+      t1.$indexSet(0, directory, t2);
+      t4.add$1(0, t2);
+      return future;
+    }
+  };
+  A.MultiSpan.prototype = {
+    get$start(_) {
+      var t1 = this._multi_span$_primary;
+      return t1.get$start(t1);
+    },
+    get$end(_) {
+      var t1 = this._multi_span$_primary;
+      return t1.get$end(t1);
+    },
+    get$text() {
+      return this._multi_span$_primary.get$text();
+    },
+    get$context(_) {
+      var t1 = this._multi_span$_primary;
+      return t1.get$context(t1);
+    },
+    get$file(_) {
+      var t1 = this._multi_span$_primary;
+      return t1.get$file(t1);
+    },
+    get$length(_) {
+      var t1 = this._multi_span$_primary;
+      return t1.get$length(t1);
+    },
+    get$sourceUrl(_) {
+      var t1 = this._multi_span$_primary;
+      return t1.get$sourceUrl(t1);
+    },
+    compareTo$1(_, other) {
+      return this._multi_span$_primary.compareTo$1(0, other);
+    },
+    toString$0(_) {
+      return this._multi_span$_primary.toString$0(0);
+    },
+    expand$1(_, other) {
+      return new A.MultiSpan(this._multi_span$_primary.expand$1(0, other), this.primaryLabel, this.secondarySpans);
+    },
+    highlight$1$color(color) {
+      return A.Highlighter$multiple(this._multi_span$_primary, this.primaryLabel, this.secondarySpans, color === true, null, null).highlight$0();
+    },
+    message$2$color(_, message, color) {
+      var t1 = J.$eq$(color, true) || typeof color == "string",
+        t2 = typeof color == "string" ? color : null;
+      return A.SourceSpanExtension_messageMultiple(this._multi_span$_primary, message, this.primaryLabel, this.secondarySpans, t1, t2, null);
+    },
+    message$1(_, message) {
+      return this.message$2$color(0, message, null);
+    },
+    $isComparable: 1,
+    $isFileSpan: 1,
+    $isSourceSpan: 1,
+    $isSourceSpanWithContext: 1
+  };
+  A.NoSourceMapBuffer.prototype = {
+    get$length(_) {
+      return this._no_source_map_buffer$_buffer._contents.length;
+    },
+    forSpan$1$2(span, callback) {
+      return callback.call$0();
+    },
+    forSpan$2(span, callback) {
+      return this.forSpan$1$2(span, callback, type$.dynamic);
+    },
+    write$1(_, object) {
+      var t1 = this._no_source_map_buffer$_buffer,
+        t2 = A.S(object);
+      t1._contents += t2;
+      return null;
+    },
+    writeCharCode$1(charCode) {
+      var t1 = this._no_source_map_buffer$_buffer,
+        t2 = A.Primitives_stringFromCharCode(charCode);
+      t1._contents += t2;
+      return null;
+    },
+    toString$0(_) {
+      var t1 = this._no_source_map_buffer$_buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    buildSourceMap$1$prefix(prefix) {
+      return A.throwExpression(A.UnsupportedError$(string$.NoSour));
+    }
+  };
+  A.PrefixedMapView.prototype = {
+    get$keys(_) {
+      return new A._PrefixedKeys(this);
+    },
+    get$length(_) {
+      var t1 = this._prefixed_map_view$_map;
+      return t1.get$length(t1);
+    },
+    get$isEmpty(_) {
+      var t1 = this._prefixed_map_view$_map;
+      return t1.get$isEmpty(t1);
+    },
+    get$isNotEmpty(_) {
+      var t1 = this._prefixed_map_view$_map;
+      return t1.get$isNotEmpty(t1);
+    },
+    $index(_, key) {
+      return typeof key == "string" && B.JSString_methods.startsWith$1(key, this._prefix) ? this._prefixed_map_view$_map.$index(0, J.substring$1$s(key, this._prefix.length)) : null;
+    },
+    containsKey$1(key) {
+      return typeof key == "string" && B.JSString_methods.startsWith$1(key, this._prefix) && this._prefixed_map_view$_map.containsKey$1(J.substring$1$s(key, this._prefix.length));
+    }
+  };
+  A._PrefixedKeys.prototype = {
+    get$length(_) {
+      var t1 = this._view._prefixed_map_view$_map;
+      return t1.get$length(t1);
+    },
+    get$iterator(_) {
+      var t1 = this._view._prefixed_map_view$_map;
+      t1 = J.map$1$1$ax(t1.get$keys(t1), new A._PrefixedKeys_iterator_closure(this), type$.String);
+      return t1.get$iterator(t1);
+    },
+    contains$1(_, key) {
+      return this._view.containsKey$1(key);
+    }
+  };
+  A._PrefixedKeys_iterator_closure.prototype = {
+    call$1(key) {
+      return this.$this._view._prefix + key;
+    },
+    $signature: 5
+  };
+  A.PublicMemberMapView.prototype = {
+    get$keys(_) {
+      var t1 = this._public_member_map_view$_inner;
+      return J.where$1$ax(t1.get$keys(t1), A.utils__isPublic$closure());
+    },
+    containsKey$1(key) {
+      return typeof key == "string" && A.isPublic(key) && this._public_member_map_view$_inner.containsKey$1(key);
+    },
+    $index(_, key) {
+      if (typeof key == "string" && A.isPublic(key))
+        return this._public_member_map_view$_inner.$index(0, key);
+      return null;
+    }
+  };
+  A.SourceMapBuffer.prototype = {
+    get$_targetLocation() {
+      var t1 = this._source_map_buffer$_buffer._contents,
+        t2 = this._line;
+      return A.SourceLocation$(t1.length, this._column, t2, null);
+    },
+    get$length(_) {
+      return this._source_map_buffer$_buffer._contents.length;
+    },
+    forSpan$1$2(span, callback) {
+      var t1, _this = this,
+        wasInSpan = _this._inSpan;
+      _this._inSpan = true;
+      _this._addEntry$2(span.get$start(span), _this.get$_targetLocation());
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        _this._inSpan = wasInSpan;
+      }
+    },
+    forSpan$2(span, callback) {
+      return this.forSpan$1$2(span, callback, type$.dynamic);
+    },
+    _addEntry$2(source, target) {
+      var entry, t2,
+        t1 = this._entries;
+      if (t1.length !== 0) {
+        entry = B.JSArray_methods.get$last(t1);
+        t2 = entry.source;
+        if (t2.file.getLine$1(t2.offset) === source.file.getLine$1(source.offset) && entry.target.line === target.line)
+          return;
+        if (entry.target.offset === target.offset)
+          return;
+      }
+      t1.push(new A.Entry(source, target, null));
+    },
+    write$1(_, object) {
+      var t1, i,
+        string = J.toString$0$(object);
+      this._source_map_buffer$_buffer._contents += string;
+      for (t1 = string.length, i = 0; i < t1; ++i)
+        if (string.charCodeAt(i) === 10)
+          this._source_map_buffer$_writeLine$0();
+        else
+          ++this._column;
+    },
+    writeCharCode$1(charCode) {
+      var t1 = this._source_map_buffer$_buffer,
+        t2 = A.Primitives_stringFromCharCode(charCode);
+      t1._contents += t2;
+      if (charCode === 10)
+        this._source_map_buffer$_writeLine$0();
+      else
+        ++this._column;
+    },
+    _source_map_buffer$_writeLine$0() {
+      var _this = this,
+        t1 = _this._entries;
+      if (B.JSArray_methods.get$last(t1).target.line === _this._line && B.JSArray_methods.get$last(t1).target.column === _this._column)
+        t1.pop();
+      ++_this._line;
+      _this._column = 0;
+      if (_this._inSpan)
+        t1.push(new A.Entry(B.JSArray_methods.get$last(t1).source, _this.get$_targetLocation(), null));
+    },
+    toString$0(_) {
+      var t1 = this._source_map_buffer$_buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    buildSourceMap$1$prefix(prefix) {
+      var i, t2, prefixColumn, _box_0 = {},
+        t1 = prefix.length;
+      if (t1 === 0)
+        return A.SingleMapping_SingleMapping$fromEntries(this._entries);
+      _box_0.prefixColumn = _box_0.prefixLines = 0;
+      for (i = 0, t2 = 0; i < t1; ++i)
+        if (prefix.charCodeAt(i) === 10) {
+          ++_box_0.prefixLines;
+          _box_0.prefixColumn = 0;
+          t2 = 0;
+        } else {
+          prefixColumn = t2 + 1;
+          _box_0.prefixColumn = prefixColumn;
+          t2 = prefixColumn;
+        }
+      t2 = this._entries;
+      return A.SingleMapping_SingleMapping$fromEntries(new A.MappedListIterable(t2, new A.SourceMapBuffer_buildSourceMap_closure(_box_0, t1), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,Entry>")));
+    }
+  };
+  A.SourceMapBuffer_buildSourceMap_closure.prototype = {
+    call$1(entry) {
+      var t1 = entry.target,
+        t2 = t1.line,
+        t3 = this._box_0,
+        t4 = t3.prefixLines;
+      t3 = t2 === 0 ? t3.prefixColumn : 0;
+      return new A.Entry(entry.source, A.SourceLocation$(t1.offset + this.prefixLength, t1.column + t3, t2 + t4, null), entry.identifierName);
+    },
+    $signature: 160
+  };
+  A.UnprefixedMapView.prototype = {
+    get$keys(_) {
+      return new A._UnprefixedKeys(this);
+    },
+    $index(_, key) {
+      return typeof key == "string" ? this._unprefixed_map_view$_map.$index(0, this._unprefixed_map_view$_prefix + key) : null;
+    },
+    containsKey$1(key) {
+      return typeof key == "string" && this._unprefixed_map_view$_map.containsKey$1(this._unprefixed_map_view$_prefix + key);
+    },
+    remove$1(_, key) {
+      return typeof key == "string" ? this._unprefixed_map_view$_map.remove$1(0, this._unprefixed_map_view$_prefix + key) : null;
+    }
+  };
+  A._UnprefixedKeys.prototype = {
+    get$iterator(_) {
+      var t1 = this._unprefixed_map_view$_view._unprefixed_map_view$_map;
+      t1 = J.where$1$ax(t1.get$keys(t1), new A._UnprefixedKeys_iterator_closure(this)).map$1$1(0, new A._UnprefixedKeys_iterator_closure0(this), type$.String);
+      return t1.get$iterator(t1);
+    },
+    contains$1(_, key) {
+      return this._unprefixed_map_view$_view.containsKey$1(key);
+    }
+  };
+  A._UnprefixedKeys_iterator_closure.prototype = {
+    call$1(key) {
+      return B.JSString_methods.startsWith$1(key, this.$this._unprefixed_map_view$_view._unprefixed_map_view$_prefix);
+    },
+    $signature: 4
+  };
+  A._UnprefixedKeys_iterator_closure0.prototype = {
+    call$1(key) {
+      return B.JSString_methods.substring$1(key, this.$this._unprefixed_map_view$_view._unprefixed_map_view$_prefix.length);
+    },
+    $signature: 5
+  };
+  A.indent_closure.prototype = {
+    call$1(line) {
+      return B.JSString_methods.$mul(" ", this.indentation) + line;
+    },
+    $signature: 5
+  };
+  A.flattenVertically_closure.prototype = {
+    call$1(inner) {
+      return A.QueueList_QueueList$from(inner, this.T);
+    },
+    $signature() {
+      return this.T._eval$1("QueueList<0>(Iterable<0>)");
+    }
+  };
+  A.flattenVertically_closure0.prototype = {
+    call$1(queue) {
+      this.result.push(queue.removeFirst$0());
+      return queue.get$length(0) === 0;
+    },
+    $signature() {
+      return this.T._eval$1("bool(QueueList<0>)");
+    }
+  };
+  A.longestCommonSubsequence_backtrack.prototype = {
+    call$2(i, j) {
+      var selection, t1, _this = this;
+      if (i === -1 || j === -1)
+        return A._setArrayType([], _this.T._eval$1("JSArray<0>"));
+      selection = _this.selections[i][j];
+      if (selection != null) {
+        t1 = _this.call$2(i - 1, j - 1);
+        J.add$1$ax(t1, selection);
+        return t1;
+      }
+      t1 = _this.lengths;
+      return t1[i + 1][j] > t1[i][j + 1] ? _this.call$2(i, j - 1) : _this.call$2(i - 1, j);
+    },
+    $signature() {
+      return this.T._eval$1("List<0>(int,int)");
+    }
+  };
+  A.mapAddAll2_closure.prototype = {
+    call$2(key, inner) {
+      var t1 = this.destination,
+        _0_0 = t1.$index(0, key);
+      if (_0_0 != null)
+        _0_0.addAll$1(0, inner);
+      else
+        t1.$indexSet(0, key, inner);
+    },
+    $signature() {
+      return this.K1._eval$1("@<0>")._bind$1(this.K2)._bind$1(this.V)._eval$1("~(1,Map<2,3>)");
+    }
+  };
+  A.Value.prototype = {
+    get$isTruthy() {
+      return true;
+    },
+    get$separator(_) {
+      return B.ListSeparator_undecided_null_undecided;
+    },
+    get$hasBrackets() {
+      return false;
+    },
+    get$asList() {
+      return A._setArrayType([this], type$.JSArray_Value);
+    },
+    get$lengthAsList() {
+      return 1;
+    },
+    get$isBlank() {
+      return false;
+    },
+    get$isSpecialNumber() {
+      return false;
+    },
+    get$isVar() {
+      return false;
+    },
+    get$realNull() {
+      return this;
+    },
+    sassIndexToListIndex$2(sassIndex, $name) {
+      var t1, index,
+        indexValue = sassIndex.assertNumber$1($name);
+      if (indexValue.get$hasUnits()) {
+        t1 = indexValue.get$unitString();
+        A.warnForDeprecation("$" + $name + ": Passing a number with unit " + t1 + string$.x20is_de + indexValue.unitSuggestion$1($name) + string$.x0a_Morex3a, B.Deprecation_2jN);
+      }
+      index = indexValue.assertInt$1($name);
+      if (index === 0)
+        throw A.wrapException(A.SassScriptException$("List index may not be 0.", $name));
+      if (Math.abs(index) > this.get$lengthAsList())
+        throw A.wrapException(A.SassScriptException$("Invalid index " + sassIndex.toString$0(0) + " for a list with " + this.get$lengthAsList() + " elements.", $name));
+      return index < 0 ? this.get$lengthAsList() + index : index - 1;
+    },
+    assertCalculation$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a calculation.", $name));
+    },
+    assertColor$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a color.", $name));
+    },
+    assertFunction$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a function reference.", $name));
+    },
+    assertMixin$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a mixin reference.", $name));
+    },
+    assertMap$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a map.", $name));
+    },
+    tryMap$0() {
+      return null;
+    },
+    assertNumber$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a number.", $name));
+    },
+    assertNumber$0() {
+      return this.assertNumber$1(null);
+    },
+    assertString$1($name) {
+      return A.throwExpression(A.SassScriptException$(this.toString$0(0) + " is not a string.", $name));
+    },
+    _selectorString$1($name) {
+      var _0_0 = this._selectorStringOrNull$0();
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$(this.toString$0(0) + string$.x20is_noav, $name));
+    },
+    _selectorStringOrNull$0() {
+      var t1, t2, result, _1_0, _i, complex, string, compound, _this = this, _null = null;
+      if (_this instanceof A.SassString)
+        return _this._string$_text;
+      if (!(_this instanceof A.SassList))
+        return _null;
+      t1 = _this._list$_contents;
+      t2 = t1.length;
+      if (t2 === 0)
+        return _null;
+      result = A._setArrayType([], type$.JSArray_String);
+      $label0$1: {
+        _1_0 = _this._separator;
+        if (B.ListSeparator_ECn === _1_0) {
+          for (_i = 0; _i < t2; ++_i) {
+            complex = t1[_i];
+            if (complex instanceof A.SassString) {
+              result.push(complex._string$_text);
+              continue;
+            }
+            if (complex instanceof A.SassList && B.ListSeparator_nbm === complex._separator) {
+              string = complex._selectorStringOrNull$0();
+              if (string == null)
+                return _null;
+              result.push(string);
+              continue;
+            }
+            return _null;
+          }
+          break $label0$1;
+        }
+        if (B.ListSeparator_cQA === _1_0)
+          return _null;
+        for (_i = 0; _i < t2; ++_i) {
+          compound = t1[_i];
+          if (!(compound instanceof A.SassString))
+            return _null;
+          result.push(compound._string$_text);
+        }
+        break $label0$1;
+      }
+      return B.JSArray_methods.join$1(result, _1_0 === B.ListSeparator_ECn ? ", " : " ");
+    },
+    withListContents$2$separator(contents, separator) {
+      var t1 = separator == null ? this.get$separator(this) : separator,
+        t2 = this.get$hasBrackets();
+      return A.SassList$(contents, t1, t2);
+    },
+    withListContents$1(contents) {
+      return this.withListContents$2$separator(contents, null);
+    },
+    greaterThan$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " > " + other.toString$0(0) + '".', null));
+    },
+    greaterThanOrEquals$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " >= " + other.toString$0(0) + '".', null));
+    },
+    lessThan$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " < " + other.toString$0(0) + '".', null));
+    },
+    lessThanOrEquals$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " <= " + other.toString$0(0) + '".', null));
+    },
+    times$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " * " + other.toString$0(0) + '".', null));
+    },
+    modulo$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " % " + other.toString$0(0) + '".', null));
+    },
+    plus$1(other) {
+      var t1;
+      $label0$0: {
+        if (other instanceof A.SassString) {
+          t1 = new A.SassString(A.serializeValue(this, false, true) + other._string$_text, other._hasQuotes);
+          break $label0$0;
+        }
+        if (other instanceof A.SassCalculation)
+          A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+        t1 = new A.SassString(A.serializeValue(this, false, true) + A.serializeValue(other, false, true), false);
+        break $label0$0;
+      }
+      return t1;
+    },
+    minus$1(other) {
+      return other instanceof A.SassCalculation ? A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " - " + other.toString$0(0) + '".', null)) : new A.SassString(A.serializeValue(this, false, true) + "-" + A.serializeValue(other, false, true), false);
+    },
+    dividedBy$1(other) {
+      return new A.SassString(A.serializeValue(this, false, true) + "/" + A.serializeValue(other, false, true), false);
+    },
+    unaryPlus$0() {
+      return new A.SassString("+" + A.serializeValue(this, false, true), false);
+    },
+    unaryMinus$0() {
+      return new A.SassString("-" + A.serializeValue(this, false, true), false);
+    },
+    unaryNot$0() {
+      return B.SassBoolean_false;
+    },
+    withoutSlash$0() {
+      return this;
+    },
+    toString$0(_) {
+      return A.serializeValue(this, true, true);
+    }
+  };
+  A.SassArgumentList.prototype = {};
+  A.SassBoolean.prototype = {
+    get$isTruthy() {
+      return this.value;
+    },
+    accept$1$1(visitor) {
+      return visitor._serialize$_buffer.write$1(0, String(this.value));
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unaryNot$0() {
+      return this.value ? B.SassBoolean_false : B.SassBoolean_true;
+    }
+  };
+  A.SassCalculation.prototype = {
+    get$isSpecialNumber() {
+      return true;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitCalculation$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertCalculation$1($name) {
+      return this;
+    },
+    plus$1(other) {
+      if (other instanceof A.SassString)
+        return this.super$Value$plus(other);
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+    },
+    minus$1(other) {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " - " + other.toString$0(0) + '".', null));
+    },
+    unaryPlus$0() {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "+' + this.toString$0(0) + '".', null));
+    },
+    unaryMinus$0() {
+      return A.throwExpression(A.SassScriptException$('Undefined operation "-' + this.toString$0(0) + '".', null));
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassCalculation && this.name === other.name && B.C_ListEquality.equals$2(0, this.$arguments, other.$arguments);
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name) ^ B.C_ListEquality0.hash$1(this.$arguments);
+    }
+  };
+  A.SassCalculation__verifyLength_closure.prototype = {
+    call$1(arg) {
+      return arg instanceof A.SassString;
+    },
+    $signature: 67
+  };
+  A.CalculationOperation.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CalculationOperation && this._operator === other._operator && J.$eq$(this._left, other._left) && J.$eq$(this._right, other._right);
+    },
+    get$hashCode(_) {
+      return (A.Primitives_objectHashCode(this._operator) ^ J.get$hashCode$(this._left) ^ J.get$hashCode$(this._right)) >>> 0;
+    },
+    toString$0(_) {
+      var parenthesized = A.serializeValue(new A.SassCalculation("", A._setArrayType([this], type$.JSArray_Object)), true, true);
+      return B.JSString_methods.substring$2(parenthesized, 1, parenthesized.length - 1);
+    }
+  };
+  A.CalculationOperator.prototype = {
+    _enumToString$0() {
+      return "CalculationOperator." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.SassColor.prototype = {
+    get$red(_) {
+      var t1;
+      if (this._red == null)
+        this._hslToRgb$0();
+      t1 = this._red;
+      t1.toString;
+      return t1;
+    },
+    get$green(_) {
+      var t1;
+      if (this._green == null)
+        this._hslToRgb$0();
+      t1 = this._green;
+      t1.toString;
+      return t1;
+    },
+    get$blue(_) {
+      var t1;
+      if (this._blue == null)
+        this._hslToRgb$0();
+      t1 = this._blue;
+      t1.toString;
+      return t1;
+    },
+    get$hue(_) {
+      var t1;
+      if (this._hue == null)
+        this._rgbToHsl$0();
+      t1 = this._hue;
+      t1.toString;
+      return t1;
+    },
+    get$saturation(_) {
+      var t1;
+      if (this._saturation == null)
+        this._rgbToHsl$0();
+      t1 = this._saturation;
+      t1.toString;
+      return t1;
+    },
+    get$lightness(_) {
+      var t1;
+      if (this._lightness == null)
+        this._rgbToHsl$0();
+      t1 = this._lightness;
+      t1.toString;
+      return t1;
+    },
+    get$whiteness(_) {
+      return Math.min(Math.min(this.get$red(0), this.get$green(0)), this.get$blue(0)) / 255 * 100;
+    },
+    get$blackness(_) {
+      return 100 - Math.max(Math.max(this.get$red(0), this.get$green(0)), this.get$blue(0)) / 255 * 100;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitColor$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertColor$1($name) {
+      return this;
+    },
+    changeRgb$4$alpha$blue$green$red(alpha, blue, green, red) {
+      return A.SassColor$rgb(red, green, blue, alpha == null ? this._alpha : alpha);
+    },
+    changeRgb$3$blue$green$red(blue, green, red) {
+      return this.changeRgb$4$alpha$blue$green$red(null, blue, green, red);
+    },
+    changeHsl$4$alpha$hue$lightness$saturation(alpha, hue, lightness, saturation) {
+      var _this = this, _null = null,
+        t1 = hue == null ? _this.get$hue(0) : hue,
+        t2 = saturation == null ? _this.get$saturation(0) : saturation,
+        t3 = lightness == null ? _this.get$lightness(0) : lightness,
+        t4 = A.SassColor__handleNullAlpha(alpha == null ? _this._alpha : alpha);
+      return new A.SassColor(_null, _null, _null, B.JSNumber_methods.$mod(t1, 360), A.fuzzyAssertRange(t2, 0, 100, "saturation"), A.fuzzyAssertRange(t3, 0, 100, "lightness"), A.fuzzyAssertRange(t4, 0, 1, "alpha"), _null);
+    },
+    changeHsl$1$saturation(saturation) {
+      return this.changeHsl$4$alpha$hue$lightness$saturation(null, null, null, saturation);
+    },
+    changeHsl$1$lightness(lightness) {
+      return this.changeHsl$4$alpha$hue$lightness$saturation(null, null, lightness, null);
+    },
+    changeHsl$1$hue(hue) {
+      return this.changeHsl$4$alpha$hue$lightness$saturation(null, hue, null, null);
+    },
+    changeAlpha$1(alpha) {
+      var _this = this;
+      return new A.SassColor(_this._red, _this._green, _this._blue, _this._hue, _this._saturation, _this._lightness, A.fuzzyAssertRange(alpha, 0, 1, "alpha"), null);
+    },
+    plus$1(other) {
+      if (!(other instanceof A.SassNumber) && !(other instanceof A.SassColor))
+        return this.super$Value$plus(other);
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+    },
+    minus$1(other) {
+      if (!(other instanceof A.SassNumber) && !(other instanceof A.SassColor))
+        return this.super$Value$minus(other);
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " - " + other.toString$0(0) + '".', null));
+    },
+    dividedBy$1(other) {
+      if (!(other instanceof A.SassNumber) && !(other instanceof A.SassColor))
+        return this.super$Value$dividedBy(other);
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " / " + other.toString$0(0) + '".', null));
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.SassColor && other.get$red(0) === _this.get$red(0) && other.get$green(0) === _this.get$green(0) && other.get$blue(0) === _this.get$blue(0) && other._alpha === _this._alpha;
+    },
+    get$hashCode(_) {
+      var _this = this;
+      return B.JSInt_methods.get$hashCode(_this.get$red(0)) ^ B.JSInt_methods.get$hashCode(_this.get$green(0)) ^ B.JSInt_methods.get$hashCode(_this.get$blue(0)) ^ B.JSNumber_methods.get$hashCode(_this._alpha);
+    },
+    _rgbToHsl$0() {
+      var t2, lightness, _this = this,
+        scaledRed = _this.get$red(0) / 255,
+        scaledGreen = _this.get$green(0) / 255,
+        scaledBlue = _this.get$blue(0) / 255,
+        max = Math.max(Math.max(scaledRed, scaledGreen), scaledBlue),
+        min = Math.min(Math.min(scaledRed, scaledGreen), scaledBlue),
+        delta = max - min,
+        t1 = max === min;
+      if (t1)
+        _this._hue = 0;
+      else if (max === scaledRed)
+        _this._hue = B.JSNumber_methods.$mod(60 * (scaledGreen - scaledBlue) / delta, 360);
+      else if (max === scaledGreen)
+        _this._hue = B.JSNumber_methods.$mod(120 + 60 * (scaledBlue - scaledRed) / delta, 360);
+      else if (max === scaledBlue)
+        _this._hue = B.JSNumber_methods.$mod(240 + 60 * (scaledRed - scaledGreen) / delta, 360);
+      t2 = max + min;
+      lightness = 50 * t2;
+      _this._lightness = lightness;
+      if (t1)
+        _this._saturation = 0;
+      else {
+        t1 = 100 * delta;
+        if (lightness < 50)
+          _this._saturation = t1 / t2;
+        else
+          _this._saturation = t1 / (2 - max - min);
+      }
+    },
+    _hslToRgb$0() {
+      var _this = this,
+        scaledHue = _this.get$hue(0) / 360,
+        scaledSaturation = _this.get$saturation(0) / 100,
+        scaledLightness = _this.get$lightness(0) / 100,
+        m2 = scaledLightness <= 0.5 ? scaledLightness * (scaledSaturation + 1) : scaledLightness + scaledSaturation - scaledLightness * scaledSaturation,
+        m1 = scaledLightness * 2 - m2;
+      _this._red = A.fuzzyRound(A.SassColor__hueToRgb(m1, m2, scaledHue + 0.3333333333333333) * 255);
+      _this._green = A.fuzzyRound(A.SassColor__hueToRgb(m1, m2, scaledHue) * 255);
+      _this._blue = A.fuzzyRound(A.SassColor__hueToRgb(m1, m2, scaledHue - 0.3333333333333333) * 255);
+    }
+  };
+  A.SassColor_SassColor$hwb_toRgb.prototype = {
+    call$1(hue) {
+      return A.fuzzyRound((A.SassColor__hueToRgb(0, 1, hue) * this.factor + this._box_0.scaledWhiteness) * 255);
+    },
+    $signature: 161
+  };
+  A._ColorFormatEnum.prototype = {
+    toString$0(_) {
+      return this._color$_name;
+    }
+  };
+  A.SpanColorFormat.prototype = {};
+  A.SassFunction.prototype = {
+    accept$1$1(visitor) {
+      var t1, t2;
+      if (!visitor._inspect)
+        A.throwExpression(A.SassScriptException$(this.toString$0(0) + " isn't a valid CSS value.", null));
+      t1 = visitor._serialize$_buffer;
+      t1.write$1(0, "get-function(");
+      t2 = this.callable;
+      visitor._visitQuotedString$1(t2.get$name(t2));
+      t1.writeCharCode$1(41);
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertFunction$1($name) {
+      return this;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassFunction && this.callable.$eq(0, other.callable);
+    },
+    get$hashCode(_) {
+      var t1 = this.callable;
+      return t1.get$hashCode(t1);
+    }
+  };
+  A.SassList.prototype = {
+    get$separator(_) {
+      return this._separator;
+    },
+    get$hasBrackets() {
+      return this._hasBrackets;
+    },
+    get$isBlank() {
+      return !this._hasBrackets && B.JSArray_methods.every$1(this._list$_contents, new A.SassList_isBlank_closure());
+    },
+    get$asList() {
+      return this._list$_contents;
+    },
+    get$lengthAsList() {
+      return this._list$_contents.length;
+    },
+    SassList$3$brackets(contents, _separator, brackets) {
+      if (this._separator === B.ListSeparator_undecided_null_undecided && this._list$_contents.length > 1)
+        throw A.wrapException(A.ArgumentError$(string$.A_list, null));
+    },
+    accept$1$1(visitor) {
+      return visitor.visitList$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertMap$1($name) {
+      return this._list$_contents.length === 0 ? B.SassMap_Map_empty : this.super$Value$assertMap($name);
+    },
+    tryMap$0() {
+      return this._list$_contents.length === 0 ? B.SassMap_Map_empty : null;
+    },
+    $eq(_, other) {
+      var t1, _this = this;
+      if (other == null)
+        return false;
+      if (!(other instanceof A.SassList && other._separator === _this._separator && other._hasBrackets === _this._hasBrackets && B.C_ListEquality.equals$2(0, other._list$_contents, _this._list$_contents)))
+        t1 = _this._list$_contents.length === 0 && other instanceof A.SassMap && other.get$asList().length === 0;
+      else
+        t1 = true;
+      return t1;
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this._list$_contents);
+    }
+  };
+  A.SassList_isBlank_closure.prototype = {
+    call$1(element) {
+      return element.get$isBlank();
+    },
+    $signature: 73
+  };
+  A.ListSeparator.prototype = {
+    _enumToString$0() {
+      return "ListSeparator." + this._name;
+    },
+    toString$0(_) {
+      return this._list$_name;
+    }
+  };
+  A.SassMap.prototype = {
+    get$separator(_) {
+      var t1 = this._map$_contents;
+      return t1.get$isEmpty(t1) ? B.ListSeparator_undecided_null_undecided : B.ListSeparator_ECn;
+    },
+    get$asList() {
+      var t3, t4, t5, result,
+        t1 = type$.JSArray_Value,
+        t2 = A._setArrayType([], t1);
+      for (t3 = type$.Value, t4 = A.MapExtensions_get_pairs(this._map$_contents, t3, t3), t4 = t4.get$iterator(t4); t4.moveNext$0();) {
+        t5 = t4.get$current(t4);
+        result = A.List_List$from(A._setArrayType([t5._0, t5._1], t1), false, t3);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        t2.push(new A.SassList(result, B.ListSeparator_nbm, false));
+      }
+      return t2;
+    },
+    get$lengthAsList() {
+      var t1 = this._map$_contents;
+      return t1.get$length(t1);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitMap$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertMap$1($name) {
+      return this;
+    },
+    tryMap$0() {
+      return this;
+    },
+    $eq(_, other) {
+      var t1;
+      if (other == null)
+        return false;
+      if (!(other instanceof A.SassMap && B.C_MapEquality.equals$2(0, other._map$_contents, this._map$_contents))) {
+        t1 = this._map$_contents;
+        t1 = t1.get$isEmpty(t1) && other instanceof A.SassList && other._list$_contents.length === 0;
+      } else
+        t1 = true;
+      return t1;
+    },
+    get$hashCode(_) {
+      var t1 = this._map$_contents;
+      return t1.get$isEmpty(t1) ? B.C_ListEquality0.hash$1(B.List_empty8) : B.C_MapEquality.hash$1(t1);
+    }
+  };
+  A.SassMixin.prototype = {
+    accept$1$1(visitor) {
+      var t1, t2;
+      if (!visitor._inspect)
+        A.throwExpression(A.SassScriptException$(this.toString$0(0) + " isn't a valid CSS value.", null));
+      t1 = visitor._serialize$_buffer;
+      t1.write$1(0, "get-mixin(");
+      t2 = this.callable;
+      visitor._visitQuotedString$1(t2.get$name(t2));
+      t1.writeCharCode$1(41);
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertMixin$1($name) {
+      return this;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassMixin && this.callable.$eq(0, other.callable);
+    },
+    get$hashCode(_) {
+      var t1 = this.callable;
+      return t1.get$hashCode(t1);
+    }
+  };
+  A._SassNull.prototype = {
+    get$isTruthy() {
+      return false;
+    },
+    get$isBlank() {
+      return true;
+    },
+    get$realNull() {
+      return null;
+    },
+    accept$1$1(visitor) {
+      if (visitor._inspect)
+        visitor._serialize$_buffer.write$1(0, "null");
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unaryNot$0() {
+      return B.SassBoolean_true;
+    }
+  };
+  A.SassNumber.prototype = {
+    get$unitString() {
+      var _this = this;
+      return _this.get$hasUnits() ? _this._unitString$2(_this.get$numeratorUnits(_this), _this.get$denominatorUnits(_this)) : "";
+    },
+    accept$1$1(visitor) {
+      return visitor.visitNumber$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    withoutSlash$0() {
+      var _this = this;
+      return _this.asSlash == null ? _this : _this.withValue$1(_this._number$_value);
+    },
+    assertNumber$1($name) {
+      return this;
+    },
+    assertNumber$0() {
+      return this.assertNumber$1(null);
+    },
+    assertInt$1($name) {
+      var _0_0 = A.fuzzyAsInt(this._number$_value);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$(this.toString$0(0) + " is not an int.", $name));
+    },
+    assertInt$0() {
+      return this.assertInt$1(null);
+    },
+    valueInRange$3(min, max, $name) {
+      var _this = this,
+        _0_0 = A.fuzzyCheckRange(_this._number$_value, min, max);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$("Expected " + _this.toString$0(0) + " to be within " + min + _this.get$unitString() + " and " + max + _this.get$unitString() + ".", $name));
+    },
+    valueInRangeWithUnit$4(min, max, $name, unit) {
+      var _0_0 = A.fuzzyCheckRange(this._number$_value, min, max);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$("Expected " + this.toString$0(0) + " to be within " + min + unit + " and " + max + unit + ".", $name));
+    },
+    hasCompatibleUnits$1(other) {
+      var _this = this;
+      if (_this.get$numeratorUnits(_this).length !== other.get$numeratorUnits(other).length)
+        return false;
+      if (_this.get$denominatorUnits(_this).length !== other.get$denominatorUnits(other).length)
+        return false;
+      return _this.isComparableTo$1(other);
+    },
+    assertUnit$2(unit, $name) {
+      if (this.hasUnit$1(unit))
+        return;
+      throw A.wrapException(A.SassScriptException$("Expected " + this.toString$0(0) + ' to have unit "' + unit + '".', $name));
+    },
+    assertNoUnits$1($name) {
+      if (!this.get$hasUnits())
+        return;
+      throw A.wrapException(A.SassScriptException$("Expected " + this.toString$0(0) + " to have no units.", $name));
+    },
+    assertNoUnits$0() {
+      return this.assertNoUnits$1(null);
+    },
+    convertValueToMatch$3(other, $name, otherName) {
+      return this._coerceOrConvertValue$6$coerceUnitless$name$other$otherName(other.get$numeratorUnits(other), other.get$denominatorUnits(other), false, $name, other, otherName);
+    },
+    convertValueToMatch$1(other) {
+      return this.convertValueToMatch$3(other, null, null);
+    },
+    coerce$3(newNumerators, newDenominators, $name) {
+      return A.SassNumber_SassNumber$withUnits(this.coerceValue$3(newNumerators, newDenominators, $name), newDenominators, newNumerators);
+    },
+    coerce$2(newNumerators, newDenominators) {
+      return this.coerce$3(newNumerators, newDenominators, null);
+    },
+    coerceValue$3(newNumerators, newDenominators, $name) {
+      return this._coerceOrConvertValue$4$coerceUnitless$name(newNumerators, newDenominators, true, $name);
+    },
+    coerceValueToUnit$2(unit, $name) {
+      var t1 = type$.JSArray_String;
+      return this.coerceValue$3(A._setArrayType([unit], t1), A._setArrayType([], t1), $name);
+    },
+    coerceValueToUnit$1(unit) {
+      return this.coerceValueToUnit$2(unit, null);
+    },
+    coerceToMatch$3(other, $name, otherName) {
+      var t1 = this.coerceValueToMatch$3(other, $name, otherName),
+        t2 = other.get$numeratorUnits(other);
+      return A.SassNumber_SassNumber$withUnits(t1, other.get$denominatorUnits(other), t2);
+    },
+    coerceValueToMatch$3(other, $name, otherName) {
+      return this._coerceOrConvertValue$6$coerceUnitless$name$other$otherName(other.get$numeratorUnits(other), other.get$denominatorUnits(other), true, $name, other, otherName);
+    },
+    coerceValueToMatch$1(other) {
+      return this.coerceValueToMatch$3(other, null, null);
+    },
+    _coerceOrConvertValue$6$coerceUnitless$name$other$otherName(newNumerators, newDenominators, coerceUnitless, $name, other, otherName) {
+      var otherHasUnits, t1, compatibilityException, oldNumerators, _i, oldDenominators, _this = this, _box_0 = {};
+      if (B.C_ListEquality.equals$2(0, _this.get$numeratorUnits(_this), newNumerators) && B.C_ListEquality.equals$2(0, _this.get$denominatorUnits(_this), newDenominators))
+        return _this._number$_value;
+      otherHasUnits = newNumerators.length !== 0 || newDenominators.length !== 0;
+      if (coerceUnitless)
+        t1 = !_this.get$hasUnits() || !otherHasUnits;
+      else
+        t1 = false;
+      if (t1)
+        return _this._number$_value;
+      compatibilityException = new A.SassNumber__coerceOrConvertValue_compatibilityException(_this, other, otherName, otherHasUnits, $name, newNumerators, newDenominators);
+      _box_0.value = _this._number$_value;
+      t1 = _this.get$numeratorUnits(_this);
+      oldNumerators = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      for (t1 = newNumerators.length, _i = 0; _i < newNumerators.length; newNumerators.length === t1 || (0, A.throwConcurrentModificationError)(newNumerators), ++_i)
+        A.removeFirstWhere(oldNumerators, new A.SassNumber__coerceOrConvertValue_closure(_box_0, newNumerators[_i]), new A.SassNumber__coerceOrConvertValue_closure0(compatibilityException));
+      t1 = _this.get$denominatorUnits(_this);
+      oldDenominators = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      for (t1 = newDenominators.length, _i = 0; _i < newDenominators.length; newDenominators.length === t1 || (0, A.throwConcurrentModificationError)(newDenominators), ++_i)
+        A.removeFirstWhere(oldDenominators, new A.SassNumber__coerceOrConvertValue_closure1(_box_0, newDenominators[_i]), new A.SassNumber__coerceOrConvertValue_closure2(compatibilityException));
+      if (oldNumerators.length !== 0 || oldDenominators.length !== 0)
+        throw A.wrapException(compatibilityException.call$0());
+      return _box_0.value;
+    },
+    _coerceOrConvertValue$4$coerceUnitless$name(newNumerators, newDenominators, coerceUnitless, $name) {
+      return this._coerceOrConvertValue$6$coerceUnitless$name$other$otherName(newNumerators, newDenominators, coerceUnitless, $name, null, null);
+    },
+    isComparableTo$1(other) {
+      var exception;
+      if (!this.get$hasUnits() || !other.get$hasUnits())
+        return true;
+      try {
+        this.greaterThan$1(other);
+        return true;
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.SassScriptException)
+          return false;
+        else
+          throw exception;
+      }
+    },
+    greaterThan$1(other) {
+      if (other instanceof A.SassNumber)
+        return this._coerceUnits$2(other, A.number0__fuzzyGreaterThan$closure()) ? B.SassBoolean_true : B.SassBoolean_false;
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " > " + other.toString$0(0) + '".', null));
+    },
+    greaterThanOrEquals$1(other) {
+      if (other instanceof A.SassNumber)
+        return this._coerceUnits$2(other, A.number0__fuzzyGreaterThanOrEquals$closure()) ? B.SassBoolean_true : B.SassBoolean_false;
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " >= " + other.toString$0(0) + '".', null));
+    },
+    lessThan$1(other) {
+      if (other instanceof A.SassNumber)
+        return this._coerceUnits$2(other, A.number0__fuzzyLessThan$closure()) ? B.SassBoolean_true : B.SassBoolean_false;
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " < " + other.toString$0(0) + '".', null));
+    },
+    lessThanOrEquals$1(other) {
+      if (other instanceof A.SassNumber)
+        return this._coerceUnits$2(other, A.number0__fuzzyLessThanOrEquals$closure()) ? B.SassBoolean_true : B.SassBoolean_false;
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " <= " + other.toString$0(0) + '".', null));
+    },
+    modulo$1(other) {
+      if (other instanceof A.SassNumber)
+        return this.withValue$1(this._coerceUnits$2(other, A.number0__moduloLikeSass$closure()));
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + this.toString$0(0) + " % " + other.toString$0(0) + '".', null));
+    },
+    plus$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber)
+        return _this.withValue$1(_this._coerceUnits$2(other, new A.SassNumber_plus_closure()));
+      if (!(other instanceof A.SassColor))
+        return _this.super$Value$plus(other);
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + _this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+    },
+    minus$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber)
+        return _this.withValue$1(_this._coerceUnits$2(other, new A.SassNumber_minus_closure()));
+      if (!(other instanceof A.SassColor))
+        return _this.super$Value$minus(other);
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + _this.toString$0(0) + " - " + other.toString$0(0) + '".', null));
+    },
+    times$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber) {
+        if (!other.get$hasUnits())
+          return _this.withValue$1(_this._number$_value * other._number$_value);
+        return _this.multiplyUnits$3(_this._number$_value * other._number$_value, other.get$numeratorUnits(other), other.get$denominatorUnits(other));
+      }
+      throw A.wrapException(A.SassScriptException$('Undefined operation "' + _this.toString$0(0) + " * " + other.toString$0(0) + '".', null));
+    },
+    dividedBy$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber) {
+        if (!other.get$hasUnits())
+          return _this.withValue$1(_this._number$_value / other._number$_value);
+        return _this.multiplyUnits$3(_this._number$_value / other._number$_value, other.get$denominatorUnits(other), other.get$numeratorUnits(other));
+      }
+      return _this.super$Value$dividedBy(other);
+    },
+    unaryPlus$0() {
+      return this;
+    },
+    _coerceUnits$1$2(other, operation) {
+      var t1, exception;
+      try {
+        t1 = operation.call$2(this._number$_value, other.coerceValueToMatch$1(this));
+        return t1;
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.SassScriptException) {
+          this.coerceValueToMatch$1(other);
+          throw exception;
+        } else
+          throw exception;
+      }
+    },
+    _coerceUnits$2(other, operation) {
+      return this._coerceUnits$1$2(other, operation, type$.dynamic);
+    },
+    multiplyUnits$3(value, otherNumerators, otherDenominators) {
+      var t1, _0_1, _0_2, _0_3, _0_6, _0_7_isSet, _0_7, _0_9, t2, _0_9_isSet, denominators_case_0, _0_11_isSet, _0_11, _0_13_isSet, _0_10, _0_13, numerators_case_0, t4, t3, numerators_case_1, denominators_case_1, t0, newNumerators, mutableOtherDenominators, _i, numerator, mutableDenominatorUnits, _this = this, _null = null, _box_0 = {};
+      _box_0.value = value;
+      t1 = [_this.get$numeratorUnits(_this), _this.get$denominatorUnits(_this), otherNumerators, otherDenominators];
+      _0_1 = t1[0];
+      _0_2 = t1[1];
+      _0_3 = t1[2];
+      _0_6 = _0_3.length <= 0;
+      _0_7_isSet = _0_6;
+      if (_0_7_isSet) {
+        _0_7 = t1[3];
+        _0_9 = _0_7.length <= 0;
+        t2 = _0_9;
+      } else {
+        _0_7 = _null;
+        _0_9 = _0_7;
+        t2 = false;
+      }
+      _0_9_isSet = _0_7_isSet;
+      denominators_case_0 = _0_2;
+      _0_11_isSet = !t2;
+      if (_0_11_isSet) {
+        _0_11 = _0_1.length <= 0;
+        _0_13_isSet = _0_11;
+        _0_10 = _0_1;
+        if (_0_13_isSet) {
+          _0_13 = _0_2.length <= 0;
+          t2 = _0_13;
+          if (t2) {
+            if (_0_7_isSet)
+              denominators_case_0 = _0_7;
+            else {
+              _0_7 = t1[3];
+              denominators_case_0 = _0_7;
+              _0_7_isSet = true;
+            }
+            numerators_case_0 = _0_3;
+          } else
+            numerators_case_0 = _0_1;
+        } else {
+          numerators_case_0 = _0_1;
+          _0_13 = _null;
+          t2 = false;
+        }
+        _0_1 = _0_10;
+      } else {
+        numerators_case_0 = _0_1;
+        _0_13 = _null;
+        _0_11 = _0_13;
+        _0_13_isSet = false;
+        t2 = true;
+      }
+      if (t2) {
+        t4 = denominators_case_0;
+        t3 = numerators_case_0;
+      } else {
+        t4 = _null;
+        t3 = t4;
+      }
+      if (!t2) {
+        if (_0_11_isSet)
+          t2 = _0_11;
+        else {
+          _0_11 = _0_1.length <= 0;
+          t2 = _0_11;
+        }
+        if (t2) {
+          if (_0_9_isSet)
+            t2 = _0_9;
+          else {
+            if (_0_7_isSet)
+              t2 = _0_7;
+            else {
+              _0_7 = t1[3];
+              t2 = _0_7;
+              _0_7_isSet = true;
+            }
+            _0_9 = t2.length <= 0;
+            t2 = _0_9;
+          }
+          numerators_case_1 = _0_3;
+          denominators_case_1 = _0_2;
+        } else {
+          numerators_case_1 = _null;
+          denominators_case_1 = numerators_case_1;
+          t2 = false;
+        }
+        if (!t2) {
+          if (_0_13_isSet)
+            t2 = _0_13;
+          else {
+            _0_13 = _0_2.length <= 0;
+            t2 = _0_13;
+          }
+          if (t2) {
+            if (_0_6)
+              denominators_case_1 = _0_7_isSet ? _0_7 : t1[3];
+            t1 = _0_6;
+          } else
+            t1 = false;
+          numerators_case_1 = _0_1;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = !_this._areAnyConvertible$2(numerators_case_1, denominators_case_1);
+          if (t1) {
+            t3 = denominators_case_1;
+            t2 = numerators_case_1;
+          } else {
+            t2 = t3;
+            t3 = t4;
+          }
+          t0 = t3;
+          t3 = t1;
+          t1 = t2;
+          t2 = t0;
+        } else {
+          t2 = t4;
+          t1 = t3;
+          t3 = false;
+        }
+      } else {
+        t2 = t4;
+        t1 = t3;
+        t3 = true;
+      }
+      if (t3)
+        return A.SassNumber_SassNumber$withUnits(value, t2, t1);
+      newNumerators = A._setArrayType([], type$.JSArray_String);
+      mutableOtherDenominators = A._setArrayType(otherDenominators.slice(0), A._arrayInstanceType(otherDenominators));
+      for (t1 = _this.get$numeratorUnits(_this), t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        numerator = t1[_i];
+        A.removeFirstWhere(mutableOtherDenominators, new A.SassNumber_multiplyUnits_closure(_box_0, numerator), new A.SassNumber_multiplyUnits_closure0(newNumerators, numerator));
+      }
+      t1 = _this.get$denominatorUnits(_this);
+      mutableDenominatorUnits = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      for (t1 = otherNumerators.length, _i = 0; _i < t1; ++_i) {
+        numerator = otherNumerators[_i];
+        A.removeFirstWhere(mutableDenominatorUnits, new A.SassNumber_multiplyUnits_closure1(_box_0, numerator), new A.SassNumber_multiplyUnits_closure2(newNumerators, numerator));
+      }
+      t1 = _box_0.value;
+      B.JSArray_methods.addAll$1(mutableDenominatorUnits, mutableOtherDenominators);
+      return A.SassNumber_SassNumber$withUnits(t1, mutableDenominatorUnits, newNumerators);
+    },
+    _areAnyConvertible$2(units1, units2) {
+      return B.JSArray_methods.any$1(units1, new A.SassNumber__areAnyConvertible_closure(units2));
+    },
+    _unitString$2(numerators, denominators) {
+      var _0_4, _0_6, t1, _0_7, _0_5, _null = null;
+      $label0$0: {
+        _0_4 = numerators.length <= 0;
+        if (_0_4) {
+          _0_6 = denominators.length;
+          t1 = _0_6;
+          _0_7 = t1 <= 0;
+          t1 = _0_7;
+          _0_5 = denominators;
+        } else {
+          _0_5 = _null;
+          _0_6 = _0_5;
+          _0_7 = _0_6;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = "no units";
+          break $label0$0;
+        }
+        if (_0_4)
+          t1 = _0_6 === 1;
+        else
+          t1 = false;
+        if (t1) {
+          t1 = (_0_4 ? _0_5 : denominators)[0] + "^-1";
+          break $label0$0;
+        }
+        if (_0_4) {
+          t1 = "(" + B.JSArray_methods.join$1(denominators, "*") + ")^-1";
+          break $label0$0;
+        }
+        _0_6 = denominators.length;
+        t1 = _0_6;
+        _0_7 = t1 <= 0;
+        t1 = _0_7;
+        if (t1) {
+          t1 = B.JSArray_methods.join$1(numerators, "*");
+          break $label0$0;
+        }
+        t1 = B.JSArray_methods.join$1(numerators, "*") + "/" + B.JSArray_methods.join$1(denominators, "*");
+        break $label0$0;
+      }
+      return t1;
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      if (!(other instanceof A.SassNumber))
+        return false;
+      if (_this.get$numeratorUnits(_this).length !== other.get$numeratorUnits(other).length || _this.get$denominatorUnits(_this).length !== other.get$denominatorUnits(other).length)
+        return false;
+      if (!_this.get$hasUnits())
+        return A.fuzzyEquals(_this._number$_value, other._number$_value);
+      if (!B.C_ListEquality.equals$2(0, _this._canonicalizeUnitList$1(_this.get$numeratorUnits(_this)), _this._canonicalizeUnitList$1(other.get$numeratorUnits(other))) || !B.C_ListEquality.equals$2(0, _this._canonicalizeUnitList$1(_this.get$denominatorUnits(_this)), _this._canonicalizeUnitList$1(other.get$denominatorUnits(other))))
+        return false;
+      return A.fuzzyEquals(_this._number$_value * _this._canonicalMultiplier$1(_this.get$numeratorUnits(_this)) / _this._canonicalMultiplier$1(_this.get$denominatorUnits(_this)), other._number$_value * _this._canonicalMultiplier$1(other.get$numeratorUnits(other)) / _this._canonicalMultiplier$1(other.get$denominatorUnits(other)));
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = _this.hashCache;
+      return t1 == null ? _this.hashCache = A.fuzzyHashCode(_this._number$_value * _this._canonicalMultiplier$1(_this.get$numeratorUnits(_this)) / _this._canonicalMultiplier$1(_this.get$denominatorUnits(_this))) : t1;
+    },
+    _canonicalizeUnitList$1(units) {
+      var type,
+        t1 = units.length;
+      if (t1 === 0)
+        return units;
+      if (t1 === 1) {
+        type = $.$get$_typesByUnit().$index(0, B.JSArray_methods.get$first(units));
+        if (type == null)
+          t1 = units;
+        else {
+          t1 = B.Map_397RH.$index(0, type);
+          t1.toString;
+          t1 = A._setArrayType([B.JSArray_methods.get$first(t1)], type$.JSArray_String);
+        }
+        return t1;
+      }
+      t1 = A._arrayInstanceType(units)._eval$1("MappedListIterable<1,String>");
+      t1 = A.List_List$of(new A.MappedListIterable(units, new A.SassNumber__canonicalizeUnitList_closure(), t1), true, t1._eval$1("ListIterable.E"));
+      B.JSArray_methods.sort$0(t1);
+      return t1;
+    },
+    _canonicalMultiplier$1(units) {
+      return B.JSArray_methods.fold$2(units, 1, new A.SassNumber__canonicalMultiplier_closure(this));
+    },
+    canonicalMultiplierForUnit$1(unit) {
+      var t1,
+        innerMap = B.Map_gQqJO.$index(0, unit);
+      if (innerMap == null)
+        t1 = 1;
+      else {
+        t1 = innerMap.get$values(innerMap);
+        t1 = 1 / t1.get$first(t1);
+      }
+      return t1;
+    },
+    unitSuggestion$2($name, unit) {
+      var t2, t3, result, _this = this,
+        t1 = _this.get$denominatorUnits(_this);
+      t1 = new A.MappedListIterable(t1, new A.SassNumber_unitSuggestion_closure(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$0(0);
+      t2 = _this.get$numeratorUnits(_this);
+      t2 = new A.MappedListIterable(t2, new A.SassNumber_unitSuggestion_closure0(), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,String>")).join$0(0);
+      t3 = unit == null ? "" : " * 1" + unit;
+      result = "$" + $name + t1 + t2 + t3;
+      return _this.get$numeratorUnits(_this).length === 0 ? result : "calc(" + result + ")";
+    },
+    unitSuggestion$1($name) {
+      return this.unitSuggestion$2($name, null);
+    }
+  };
+  A.SassNumber__coerceOrConvertValue_compatibilityException.prototype = {
+    call$0() {
+      var t2, t3, message, t4, type, unit, _this = this,
+        t1 = _this.other;
+      if (t1 != null) {
+        t2 = _this.$this;
+        t3 = t2.toString$0(0) + " and";
+        message = new A.StringBuffer(t3);
+        t4 = _this.otherName;
+        if (t4 != null)
+          t3 = message._contents = t3 + (" $" + t4 + ":");
+        t1 = t3 + (" " + t1.toString$0(0) + " have incompatible units");
+        message._contents = t1;
+        if (!t2.get$hasUnits() || !_this.otherHasUnits)
+          message._contents = t1 + " (one has units and the other doesn't)";
+        t1 = message.toString$0(0) + ".";
+        t2 = _this.name;
+        return new A.SassScriptException(t2 == null ? t1 : "$" + t2 + ": " + t1);
+      } else if (!_this.otherHasUnits) {
+        t1 = "Expected " + _this.$this.toString$0(0) + " to have no units.";
+        t2 = _this.name;
+        return new A.SassScriptException(t2 == null ? t1 : "$" + t2 + ": " + t1);
+      } else {
+        t1 = _this.newNumerators;
+        if (t1.length === 1 && _this.newDenominators.length === 0) {
+          type = $.$get$_typesByUnit().$index(0, B.JSArray_methods.get$first(t1));
+          if (type != null) {
+            t1 = _this.$this.toString$0(0);
+            t2 = B.JSArray_methods.contains$1(A._setArrayType([97, 101, 105, 111, 117], type$.JSArray_int), type.charCodeAt(0)) ? "an " + type : "a " + type;
+            t3 = B.Map_397RH.$index(0, type);
+            t3.toString;
+            t3 = "Expected " + t1 + " to have " + t2 + " unit (" + B.JSArray_methods.join$1(t3, ", ") + ").";
+            t2 = _this.name;
+            return new A.SassScriptException(t2 == null ? t3 : "$" + t2 + ": " + t3);
+          }
+        }
+        t2 = _this.newDenominators;
+        unit = A.pluralize("unit", t1.length + t2.length, null);
+        t3 = _this.$this;
+        t2 = "Expected " + t3.toString$0(0) + " to have " + unit + " " + t3._unitString$2(t1, t2) + ".";
+        t1 = _this.name;
+        return new A.SassScriptException(t1 == null ? t2 : "$" + t1 + ": " + t2);
+      }
+    },
+    $signature: 394
+  };
+  A.SassNumber__coerceOrConvertValue_closure.prototype = {
+    call$1(oldNumerator) {
+      var factor = A.conversionFactor(this.newNumerator, oldNumerator);
+      if (factor == null)
+        return false;
+      this._box_0.value *= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber__coerceOrConvertValue_closure0.prototype = {
+    call$0() {
+      return A.throwExpression(this.compatibilityException.call$0());
+    },
+    $signature: 0
+  };
+  A.SassNumber__coerceOrConvertValue_closure1.prototype = {
+    call$1(oldDenominator) {
+      var factor = A.conversionFactor(this.newDenominator, oldDenominator);
+      if (factor == null)
+        return false;
+      this._box_0.value /= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber__coerceOrConvertValue_closure2.prototype = {
+    call$0() {
+      return A.throwExpression(this.compatibilityException.call$0());
+    },
+    $signature: 0
+  };
+  A.SassNumber_plus_closure.prototype = {
+    call$2(num1, num2) {
+      return num1 + num2;
+    },
+    $signature: 55
+  };
+  A.SassNumber_minus_closure.prototype = {
+    call$2(num1, num2) {
+      return num1 - num2;
+    },
+    $signature: 55
+  };
+  A.SassNumber_multiplyUnits_closure.prototype = {
+    call$1(denominator) {
+      var factor = A.conversionFactor(this.numerator, denominator);
+      if (factor == null)
+        return false;
+      this._box_0.value /= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber_multiplyUnits_closure0.prototype = {
+    call$0() {
+      return this.newNumerators.push(this.numerator);
+    },
+    $signature: 0
+  };
+  A.SassNumber_multiplyUnits_closure1.prototype = {
+    call$1(denominator) {
+      var factor = A.conversionFactor(this.numerator, denominator);
+      if (factor == null)
+        return false;
+      this._box_0.value /= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber_multiplyUnits_closure2.prototype = {
+    call$0() {
+      return this.newNumerators.push(this.numerator);
+    },
+    $signature: 0
+  };
+  A.SassNumber__areAnyConvertible_closure.prototype = {
+    call$1(unit1) {
+      var t1,
+        _0_0 = B.Map_gQqJO.$index(0, unit1);
+      $label0$0: {
+        if (_0_0 != null) {
+          t1 = B.JSArray_methods.any$1(this.units2, _0_0.get$containsKey());
+          break $label0$0;
+        }
+        t1 = B.JSArray_methods.contains$1(this.units2, unit1);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 4
+  };
+  A.SassNumber__canonicalizeUnitList_closure.prototype = {
+    call$1(unit) {
+      var t1,
+        type = $.$get$_typesByUnit().$index(0, unit);
+      if (type == null)
+        t1 = unit;
+      else {
+        t1 = B.Map_397RH.$index(0, type);
+        t1.toString;
+        t1 = B.JSArray_methods.get$first(t1);
+      }
+      return t1;
+    },
+    $signature: 5
+  };
+  A.SassNumber__canonicalMultiplier_closure.prototype = {
+    call$2(multiplier, unit) {
+      return multiplier * this.$this.canonicalMultiplierForUnit$1(unit);
+    },
+    $signature: 163
+  };
+  A.SassNumber_unitSuggestion_closure.prototype = {
+    call$1(unit) {
+      return " * 1" + unit;
+    },
+    $signature: 5
+  };
+  A.SassNumber_unitSuggestion_closure0.prototype = {
+    call$1(unit) {
+      return " / 1" + unit;
+    },
+    $signature: 5
+  };
+  A.ComplexSassNumber.prototype = {
+    get$numeratorUnits(_) {
+      return this._numeratorUnits;
+    },
+    get$denominatorUnits(_) {
+      return this._denominatorUnits;
+    },
+    get$hasUnits() {
+      return true;
+    },
+    get$hasComplexUnits() {
+      return true;
+    },
+    hasUnit$1(unit) {
+      return false;
+    },
+    compatibleWithUnit$1(unit) {
+      return false;
+    },
+    hasPossiblyCompatibleUnits$1(other) {
+      throw A.wrapException(A.UnimplementedError$(string$.Comple));
+    },
+    withValue$1(value) {
+      return new A.ComplexSassNumber(this._numeratorUnits, this._denominatorUnits, value, null);
+    },
+    withSlash$2(numerator, denominator) {
+      return new A.ComplexSassNumber(this._numeratorUnits, this._denominatorUnits, this._number$_value, new A._Record_2(numerator, denominator));
+    }
+  };
+  A.SingleUnitSassNumber.prototype = {
+    get$numeratorUnits(_) {
+      return A.List_List$unmodifiable([this._unit], type$.String);
+    },
+    get$denominatorUnits(_) {
+      return B.List_empty;
+    },
+    get$hasUnits() {
+      return true;
+    },
+    get$hasComplexUnits() {
+      return false;
+    },
+    withValue$1(value) {
+      return new A.SingleUnitSassNumber(this._unit, value, null);
+    },
+    withSlash$2(numerator, denominator) {
+      return new A.SingleUnitSassNumber(this._unit, this._number$_value, new A._Record_2(numerator, denominator));
+    },
+    hasUnit$1(unit) {
+      return unit === this._unit;
+    },
+    hasCompatibleUnits$1(other) {
+      return other instanceof A.SingleUnitSassNumber && A.conversionFactor(this._unit, other._unit) != null;
+    },
+    hasPossiblyCompatibleUnits$1(other) {
+      var t1, knownCompatibilities, otherUnit;
+      if (!(other instanceof A.SingleUnitSassNumber))
+        return false;
+      t1 = $.$get$_knownCompatibilitiesByUnit();
+      knownCompatibilities = t1.$index(0, this._unit.toLowerCase());
+      if (knownCompatibilities == null)
+        return true;
+      otherUnit = other._unit.toLowerCase();
+      return knownCompatibilities.contains$1(0, otherUnit) || !t1.containsKey$1(otherUnit);
+    },
+    compatibleWithUnit$1(unit) {
+      return A.conversionFactor(this._unit, unit) != null;
+    },
+    coerceToMatch$1(other) {
+      var t1 = other instanceof A.SingleUnitSassNumber ? this._coerceToUnit$1(other._unit) : null;
+      return t1 == null ? this.super$SassNumber$coerceToMatch(other, null, null) : t1;
+    },
+    coerceValueToMatch$3(other, $name, otherName) {
+      var t1 = other instanceof A.SingleUnitSassNumber ? this._coerceValueToUnit$1(other._unit) : null;
+      return t1 == null ? this.super$SassNumber$coerceValueToMatch(other, $name, otherName) : t1;
+    },
+    coerceValueToMatch$1(other) {
+      return this.coerceValueToMatch$3(other, null, null);
+    },
+    convertValueToMatch$3(other, $name, otherName) {
+      var t1 = other instanceof A.SingleUnitSassNumber ? this._coerceValueToUnit$1(other._unit) : null;
+      return t1 == null ? this.super$SassNumber$convertValueToMatch(other, $name, otherName) : t1;
+    },
+    convertValueToMatch$1(other) {
+      return this.convertValueToMatch$3(other, null, null);
+    },
+    coerce$2(newNumerators, newDenominators) {
+      var t1 = newNumerators.length === 1 && newDenominators.length === 0 ? this._coerceToUnit$1(newNumerators[0]) : null;
+      return t1 == null ? this.super$SassNumber$coerce(newNumerators, newDenominators, null) : t1;
+    },
+    coerceValue$3(newNumerators, newDenominators, $name) {
+      var t1 = newNumerators.length === 1 && newDenominators.length === 0 ? this._coerceValueToUnit$1(newNumerators[0]) : null;
+      return t1 == null ? this.super$SassNumber$coerceValue(newNumerators, newDenominators, $name) : t1;
+    },
+    coerceValueToUnit$2(unit, $name) {
+      var t1 = this._coerceValueToUnit$1(unit);
+      return t1 == null ? this.super$SassNumber$coerceValueToUnit(unit, $name) : t1;
+    },
+    coerceValueToUnit$1(unit) {
+      return this.coerceValueToUnit$2(unit, null);
+    },
+    _coerceToUnit$1(unit) {
+      var t1 = this._unit;
+      if (t1 === unit)
+        return this;
+      return A.NullableExtension_andThen(A.conversionFactor(unit, t1), new A.SingleUnitSassNumber__coerceToUnit_closure(this, unit));
+    },
+    _coerceValueToUnit$1(unit) {
+      return A.NullableExtension_andThen(A.conversionFactor(unit, this._unit), new A.SingleUnitSassNumber__coerceValueToUnit_closure(this));
+    },
+    multiplyUnits$3(value, otherNumerators, otherDenominators) {
+      var mutableOtherDenominators, t1 = {};
+      t1.value = value;
+      t1.newNumerators = otherNumerators;
+      mutableOtherDenominators = A._setArrayType(otherDenominators.slice(0), A._arrayInstanceType(otherDenominators));
+      A.removeFirstWhere(mutableOtherDenominators, new A.SingleUnitSassNumber_multiplyUnits_closure(t1, this), new A.SingleUnitSassNumber_multiplyUnits_closure0(t1, this));
+      return A.SassNumber_SassNumber$withUnits(t1.value, mutableOtherDenominators, t1.newNumerators);
+    },
+    unaryMinus$0() {
+      return new A.SingleUnitSassNumber(this._unit, -this._number$_value, null);
+    },
+    $eq(_, other) {
+      var factor;
+      if (other == null)
+        return false;
+      if (other instanceof A.SingleUnitSassNumber) {
+        factor = A.conversionFactor(other._unit, this._unit);
+        return factor != null && A.fuzzyEquals(this._number$_value * factor, other._number$_value);
+      } else
+        return false;
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = _this.hashCache;
+      return t1 == null ? _this.hashCache = A.fuzzyHashCode(_this._number$_value * _this.canonicalMultiplierForUnit$1(_this._unit)) : t1;
+    }
+  };
+  A.SingleUnitSassNumber__coerceToUnit_closure.prototype = {
+    call$1(factor) {
+      return new A.SingleUnitSassNumber(this.unit, this.$this._number$_value * factor, null);
+    },
+    $signature: 381
+  };
+  A.SingleUnitSassNumber__coerceValueToUnit_closure.prototype = {
+    call$1(factor) {
+      return this.$this._number$_value * factor;
+    },
+    $signature: 38
+  };
+  A.SingleUnitSassNumber_multiplyUnits_closure.prototype = {
+    call$1(denominator) {
+      var factor = A.conversionFactor(denominator, this.$this._unit);
+      if (factor == null)
+        return false;
+      this._box_0.value *= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SingleUnitSassNumber_multiplyUnits_closure0.prototype = {
+    call$0() {
+      var t1 = A._setArrayType([this.$this._unit], type$.JSArray_String),
+        t2 = this._box_0;
+      B.JSArray_methods.addAll$1(t1, t2.newNumerators);
+      t2.newNumerators = t1;
+    },
+    $signature: 0
+  };
+  A.UnitlessSassNumber.prototype = {
+    get$numeratorUnits(_) {
+      return B.List_empty;
+    },
+    get$denominatorUnits(_) {
+      return B.List_empty;
+    },
+    get$hasUnits() {
+      return false;
+    },
+    get$hasComplexUnits() {
+      return false;
+    },
+    withValue$1(value) {
+      return new A.UnitlessSassNumber(value, null);
+    },
+    withSlash$2(numerator, denominator) {
+      return new A.UnitlessSassNumber(this._number$_value, new A._Record_2(numerator, denominator));
+    },
+    hasUnit$1(unit) {
+      return false;
+    },
+    hasCompatibleUnits$1(other) {
+      return other instanceof A.UnitlessSassNumber;
+    },
+    hasPossiblyCompatibleUnits$1(other) {
+      return other instanceof A.UnitlessSassNumber;
+    },
+    compatibleWithUnit$1(unit) {
+      return true;
+    },
+    coerceToMatch$1(other) {
+      return other.withValue$1(this._number$_value);
+    },
+    coerceValueToMatch$3(other, $name, otherName) {
+      return this._number$_value;
+    },
+    coerceValueToMatch$1(other) {
+      return this.coerceValueToMatch$3(other, null, null);
+    },
+    convertValueToMatch$3(other, $name, otherName) {
+      return other.get$hasUnits() ? this.super$SassNumber$convertValueToMatch(other, $name, otherName) : this._number$_value;
+    },
+    convertValueToMatch$1(other) {
+      return this.convertValueToMatch$3(other, null, null);
+    },
+    coerce$2(newNumerators, newDenominators) {
+      return A.SassNumber_SassNumber$withUnits(this._number$_value, newDenominators, newNumerators);
+    },
+    coerceValue$3(newNumerators, newDenominators, $name) {
+      return this._number$_value;
+    },
+    coerceValueToUnit$2(unit, $name) {
+      return this._number$_value;
+    },
+    coerceValueToUnit$1(unit) {
+      return this.coerceValueToUnit$2(unit, null);
+    },
+    greaterThan$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber) {
+        t1 = this._number$_value;
+        t2 = other._number$_value;
+        return t1 > t2 && !A.fuzzyEquals(t1, t2) ? B.SassBoolean_true : B.SassBoolean_false;
+      }
+      return this.super$SassNumber$greaterThan(other);
+    },
+    greaterThanOrEquals$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber) {
+        t1 = this._number$_value;
+        t2 = other._number$_value;
+        return t1 > t2 || A.fuzzyEquals(t1, t2) ? B.SassBoolean_true : B.SassBoolean_false;
+      }
+      return this.super$SassNumber$greaterThanOrEquals(other);
+    },
+    lessThan$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber) {
+        t1 = this._number$_value;
+        t2 = other._number$_value;
+        return t1 < t2 && !A.fuzzyEquals(t1, t2) ? B.SassBoolean_true : B.SassBoolean_false;
+      }
+      return this.super$SassNumber$lessThan(other);
+    },
+    lessThanOrEquals$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber) {
+        t1 = this._number$_value;
+        t2 = other._number$_value;
+        return t1 < t2 || A.fuzzyEquals(t1, t2) ? B.SassBoolean_true : B.SassBoolean_false;
+      }
+      return this.super$SassNumber$lessThanOrEquals(other);
+    },
+    modulo$1(other) {
+      if (other instanceof A.SassNumber)
+        return other.withValue$1(A.moduloLikeSass(this._number$_value, other._number$_value));
+      return this.super$SassNumber$modulo(other);
+    },
+    plus$1(other) {
+      if (other instanceof A.SassNumber)
+        return other.withValue$1(this._number$_value + other._number$_value);
+      return this.super$SassNumber$plus(other);
+    },
+    minus$1(other) {
+      if (other instanceof A.SassNumber)
+        return other.withValue$1(this._number$_value - other._number$_value);
+      return this.super$SassNumber$minus(other);
+    },
+    times$1(other) {
+      if (other instanceof A.SassNumber)
+        return other.withValue$1(this._number$_value * other._number$_value);
+      return this.super$SassNumber$times(other);
+    },
+    dividedBy$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber) {
+        t1 = this._number$_value / other._number$_value;
+        if (other.get$hasUnits()) {
+          t2 = other.get$denominatorUnits(other);
+          t2 = A.SassNumber_SassNumber$withUnits(t1, other.get$numeratorUnits(other), t2);
+          t1 = t2;
+        } else
+          t1 = new A.UnitlessSassNumber(t1, null);
+        return t1;
+      }
+      return this.super$SassNumber$dividedBy(other);
+    },
+    unaryMinus$0() {
+      return new A.UnitlessSassNumber(-this._number$_value, null);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.UnitlessSassNumber && A.fuzzyEquals(this._number$_value, other._number$_value);
+    },
+    get$hashCode(_) {
+      var t1 = this.hashCache;
+      return t1 == null ? this.hashCache = A.fuzzyHashCode(this._number$_value) : t1;
+    }
+  };
+  A.SassString.prototype = {
+    get$_sassLength() {
+      var result, _this = this,
+        value = _this.__SassString__sassLength_FI;
+      if (value === $) {
+        result = new A.Runes(_this._string$_text).get$length(0);
+        _this.__SassString__sassLength_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__SassString__sassLength_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$isSpecialNumber() {
+      var t1, _2_0, _0_0, _1_0;
+      if (this._hasQuotes)
+        return false;
+      t1 = this._string$_text;
+      if (t1.length < 6)
+        return false;
+      _2_0 = t1.charCodeAt(0);
+      $label1$1: {
+        if (99 === _2_0 || 67 === _2_0) {
+          _0_0 = t1.charCodeAt(1);
+          $label0$0: {
+            if (108 === _0_0 || 76 === _0_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 97 && (t1.charCodeAt(3) | 32) === 109 && (t1.charCodeAt(4) | 32) === 112 && t1.charCodeAt(5) === 40;
+              break $label0$0;
+            }
+            if (97 === _0_0 || 65 === _0_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 108 && (t1.charCodeAt(3) | 32) === 99 && t1.charCodeAt(4) === 40;
+              break $label0$0;
+            }
+            t1 = false;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        if (118 === _2_0 || 86 === _2_0) {
+          t1 = (t1.charCodeAt(1) | 32) === 97 && (t1.charCodeAt(2) | 32) === 114 && t1.charCodeAt(3) === 40;
+          break $label1$1;
+        }
+        if (101 === _2_0 || 69 === _2_0) {
+          t1 = (t1.charCodeAt(1) | 32) === 110 && (t1.charCodeAt(2) | 32) === 118 && t1.charCodeAt(3) === 40;
+          break $label1$1;
+        }
+        if (109 === _2_0 || 77 === _2_0) {
+          _1_0 = t1.charCodeAt(1);
+          $label2$2: {
+            if (97 === _1_0 || 65 === _1_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 120 && t1.charCodeAt(3) === 40;
+              break $label2$2;
+            }
+            if (105 === _1_0 || 73 === _1_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 110 && t1.charCodeAt(3) === 40;
+              break $label2$2;
+            }
+            t1 = false;
+            break $label2$2;
+          }
+          break $label1$1;
+        }
+        t1 = false;
+        break $label1$1;
+      }
+      return t1;
+    },
+    get$isVar() {
+      if (this._hasQuotes)
+        return false;
+      var t1 = this._string$_text;
+      if (t1.length < 8)
+        return false;
+      return (t1.charCodeAt(0) | 32) === 118 && (t1.charCodeAt(1) | 32) === 97 && (t1.charCodeAt(2) | 32) === 114 && t1.charCodeAt(3) === 40;
+    },
+    get$isBlank() {
+      return !this._hasQuotes && this._string$_text.length === 0;
+    },
+    accept$1$1(visitor) {
+      var t1 = visitor._quote && this._hasQuotes,
+        t2 = this._string$_text;
+      if (t1)
+        visitor._visitQuotedString$1(t2);
+      else
+        visitor._visitUnquotedString$1(t2);
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertString$1($name) {
+      return this;
+    },
+    plus$1(other) {
+      var t1 = this._string$_text,
+        t2 = this._hasQuotes;
+      return other instanceof A.SassString ? new A.SassString(t1 + other._string$_text, t2) : new A.SassString(t1 + A.serializeValue(other, false, true), t2);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassString && this._string$_text === other._string$_text;
+    },
+    get$hashCode(_) {
+      var t1 = this._hashCache;
+      return t1 == null ? this._hashCache = B.JSString_methods.get$hashCode(this._string$_text) : t1;
+    }
+  };
+  A.AnySelectorVisitor.prototype = {
+    visitComplexSelector$1(complex) {
+      return B.JSArray_methods.any$1(complex.components, new A.AnySelectorVisitor_visitComplexSelector_closure(this));
+    },
+    visitCompoundSelector$1(compound) {
+      return B.JSArray_methods.any$1(compound.components, new A.AnySelectorVisitor_visitCompoundSelector_closure(this));
+    },
+    visitPseudoSelector$1(pseudo) {
+      var selector = pseudo.selector;
+      return selector == null ? false : this.visitSelectorList$1(selector);
+    },
+    visitSelectorList$1(list) {
+      return B.JSArray_methods.any$1(list.components, this.get$visitComplexSelector());
+    },
+    visitAttributeSelector$1(attribute) {
+      return false;
+    },
+    visitClassSelector$1(klass) {
+      return false;
+    },
+    visitIDSelector$1(id) {
+      return false;
+    },
+    visitParentSelector$1($parent) {
+      return false;
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      return false;
+    },
+    visitTypeSelector$1(type) {
+      return false;
+    },
+    visitUniversalSelector$1(universal) {
+      return false;
+    }
+  };
+  A.AnySelectorVisitor_visitComplexSelector_closure.prototype = {
+    call$1(component) {
+      return this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature: 50
+  };
+  A.AnySelectorVisitor_visitCompoundSelector_closure.prototype = {
+    call$1(simple) {
+      return simple.accept$1(this.$this);
+    },
+    $signature: 14
+  };
+  A._EvaluateVisitor0.prototype = {
+    _EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap0(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t2, metaModule, t3, _i, module, $function, t4, _this = this,
+        _s20_ = "$name, $module: null",
+        _s9_ = "sass:meta",
+        _s7_ = "$module",
+        t1 = type$.JSArray_AsyncBuiltInCallable,
+        metaFunctions = A._setArrayType([A.BuiltInCallable$function("global-variable-exists", _s20_, new A._EvaluateVisitor_closure12(_this), _s9_), A.BuiltInCallable$function("variable-exists", "$name", new A._EvaluateVisitor_closure13(_this), _s9_), A.BuiltInCallable$function("function-exists", _s20_, new A._EvaluateVisitor_closure14(_this), _s9_), A.BuiltInCallable$function("mixin-exists", _s20_, new A._EvaluateVisitor_closure15(_this), _s9_), A.BuiltInCallable$function("content-exists", "", new A._EvaluateVisitor_closure16(_this), _s9_), A.BuiltInCallable$function("module-variables", _s7_, new A._EvaluateVisitor_closure17(_this), _s9_), A.BuiltInCallable$function("module-functions", _s7_, new A._EvaluateVisitor_closure18(_this), _s9_), A.BuiltInCallable$function("module-mixins", _s7_, new A._EvaluateVisitor_closure19(_this), _s9_), A.BuiltInCallable$function("get-function", "$name, $css: false, $module: null", new A._EvaluateVisitor_closure20(_this), _s9_), A.BuiltInCallable$function("get-mixin", _s20_, new A._EvaluateVisitor_closure21(_this), _s9_), new A.AsyncBuiltInCallable("call", A.ScssParser$("@function call($function, $args...) {", null, _s9_).parseArgumentDeclaration$0(), new A._EvaluateVisitor_closure22(_this), false)], t1),
+        metaMixins = A._setArrayType([A.AsyncBuiltInCallable$mixin("load-css", "$url, $with: null", new A._EvaluateVisitor_closure23(_this), false, _s9_), A.AsyncBuiltInCallable$mixin("apply", "$mixin, $args...", new A._EvaluateVisitor_closure24(_this), true, _s9_)], t1);
+      t1 = type$.AsyncBuiltInCallable;
+      t2 = A.List_List$of($.$get$global(), true, t1);
+      B.JSArray_methods.addAll$1(t2, $.$get$local());
+      B.JSArray_methods.addAll$1(t2, metaFunctions);
+      metaModule = A.BuiltInModule$("meta", t2, metaMixins, null, t1);
+      for (t1 = A.List_List$of($.$get$coreModules(), true, type$.BuiltInModule_AsyncCallable), t1.push(metaModule), t2 = t1.length, t3 = _this._async_evaluate$_builtInModules, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        module = t1[_i];
+        t3.$indexSet(0, module.url, module);
+      }
+      t1 = A._setArrayType([], type$.JSArray_AsyncCallable);
+      B.JSArray_methods.addAll$1(t1, $.$get$globalFunctions());
+      B.JSArray_methods.addAll$1(t1, metaFunctions);
+      for (t2 = t1.length, t3 = _this._async_evaluate$_builtInFunctions, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        $function = t1[_i];
+        t4 = J.get$name$x($function);
+        t3.$indexSet(0, A.stringReplaceAllUnchecked(t4, "_", "-"), $function);
+      }
+    },
+    run$2(_, importer, node) {
+      return this.run$body$_EvaluateVisitor(0, importer, node);
+    },
+    run$body$_EvaluateVisitor(_, importer, node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, $async$exception;
+      var $async$run$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              t1 = type$.nullable_Object;
+              t1 = A.runZoned(new A._EvaluateVisitor_run_closure0($async$self, node, importer), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__evaluationContext, new A._EvaluationContext0($async$self, node)], t1, t1), type$.FutureOr_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet);
+              $async$goto = 7;
+              return A._asyncAwait(type$.Future_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet._is(t1) ? t1 : A._Future$value(t1, type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet), $async$run$2);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                A.throwWithTrace(error.withLoadedUrls$1($async$self._async_evaluate$_loadedUrls), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$run$2, $async$completer);
+    },
+    _async_evaluate$_assertInModule$1$2(value, $name) {
+      if (value != null)
+        return value;
+      throw A.wrapException(A.StateError$("Can't access " + $name + " outside of a module."));
+    },
+    _async_evaluate$_assertInModule$2(value, $name) {
+      return this._async_evaluate$_assertInModule$1$2(value, $name, type$.dynamic);
+    },
+    _async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors) {
+      return this._loadModule$body$_EvaluateVisitor(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors);
+    },
+    _async_evaluate$_loadModule$5$configuration(url, stackFrame, nodeWithSpan, callback, configuration) {
+      return this._async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, configuration, false);
+    },
+    _async_evaluate$_loadModule$4(url, stackFrame, nodeWithSpan, callback) {
+      return this._async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, null, false);
+    },
+    _loadModule$body$_EvaluateVisitor(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, t2, t1, _0_0;
+      var $async$_async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              _0_0 = $async$self._async_evaluate$_builtInModules.$index(0, url);
+              t1.builtInModule = null;
+              $async$goto = _0_0 != null ? 3 : 4;
+              break;
+            case 3:
+              // then
+              t1.builtInModule = _0_0;
+              if (configuration instanceof A.ExplicitConfiguration) {
+                t1 = namesInErrors ? "Built-in module " + url.toString$0(0) + " can't be configured." : "Built-in modules can't be configured.";
+                t2 = configuration.nodeWithSpan;
+                throw A.wrapException($async$self._async_evaluate$_exception$2(t1, t2.get$span(t2)));
+              }
+              $async$goto = 5;
+              return A._asyncAwait($async$self._addExceptionSpanAsync$1$2(nodeWithSpan, new A._EvaluateVisitor__loadModule_closure1(t1, callback), type$.void), $async$_async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors);
+            case 5:
+              // returning from await.
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_withStackFrame$1$3(stackFrame, nodeWithSpan, new A._EvaluateVisitor__loadModule_closure2($async$self, url, nodeWithSpan, baseUrl, namesInErrors, configuration, callback), type$.Null), $async$_async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors);
+            case 6:
+              // returning from await.
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors, $async$completer);
+    },
+    _async_evaluate$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, configuration, namesInErrors, nodeWithSpan) {
+      return this._execute$body$_EvaluateVisitor(importer, stylesheet, configuration, namesInErrors, nodeWithSpan);
+    },
+    _async_evaluate$_execute$2(importer, stylesheet) {
+      return this._async_evaluate$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, null, false, null);
+    },
+    _execute$body$_EvaluateVisitor(importer, stylesheet, configuration, namesInErrors, nodeWithSpan) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Module_AsyncCallable),
+        $async$returnValue, $async$self = this, _0_0, currentConfiguration, t2, t3, message, existingSpan, configurationSpan, environment, css, preModuleComments, extensionStore, module, t1, url;
+      var $async$_async_evaluate$_execute$5$configuration$namesInErrors$nodeWithSpan = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = stylesheet.span;
+              url = t1.get$sourceUrl(t1);
+              t1 = $async$self._async_evaluate$_modules;
+              _0_0 = t1.$index(0, url);
+              if (_0_0 != null) {
+                t1 = configuration == null;
+                currentConfiguration = t1 ? $async$self._async_evaluate$_configuration : configuration;
+                t2 = $async$self._async_evaluate$_moduleConfigurations.$index(0, url);
+                t3 = t2.__originalConfiguration;
+                t2 = t3 == null ? t2 : t3;
+                t3 = currentConfiguration.__originalConfiguration;
+                if (t2 !== (t3 == null ? currentConfiguration : t3) && currentConfiguration instanceof A.ExplicitConfiguration) {
+                  if (namesInErrors) {
+                    t2 = $.$get$context();
+                    url.toString;
+                    message = t2.prettyUri$1(url) + string$.x20was_a;
+                  } else
+                    message = string$.This_mw;
+                  t2 = $async$self._async_evaluate$_moduleNodes.$index(0, url);
+                  existingSpan = t2 == null ? null : t2.get$span(t2);
+                  if (t1) {
+                    t1 = currentConfiguration.nodeWithSpan;
+                    configurationSpan = t1.get$span(t1);
+                  } else
+                    configurationSpan = null;
+                  t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+                  if (existingSpan != null)
+                    t1.$indexSet(0, existingSpan, "original load");
+                  if (configurationSpan != null)
+                    t1.$indexSet(0, configurationSpan, "configuration");
+                  throw A.wrapException(t1.get$isEmpty(0) ? $async$self._async_evaluate$_exception$1(message) : $async$self._async_evaluate$_multiSpanException$3(message, "new load", t1));
+                }
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              environment = A.AsyncEnvironment$();
+              css = A._Cell$();
+              preModuleComments = A._Cell$();
+              extensionStore = A.ExtensionStore$();
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_withEnvironment$1$2(environment, new A._EvaluateVisitor__execute_closure0($async$self, importer, stylesheet, extensionStore, configuration, css, preModuleComments), type$.Null), $async$_async_evaluate$_execute$5$configuration$namesInErrors$nodeWithSpan);
+            case 3:
+              // returning from await.
+              t2 = css._readLocal$0();
+              t3 = preModuleComments._readLocal$0();
+              module = environment.toModule$3(t2, t3 == null ? B.Map_empty7 : t3, extensionStore);
+              if (url != null) {
+                t1.$indexSet(0, url, module);
+                $async$self._async_evaluate$_moduleConfigurations.$indexSet(0, url, $async$self._async_evaluate$_configuration);
+                if (nodeWithSpan != null)
+                  $async$self._async_evaluate$_moduleNodes.$indexSet(0, url, nodeWithSpan);
+              }
+              $async$returnValue = module;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_execute$5$configuration$namesInErrors$nodeWithSpan, $async$completer);
+    },
+    _async_evaluate$_addOutOfOrderImports$0() {
+      var t1, t2, _this = this, _s5_ = "_root",
+        _s13_ = "_endOfImports",
+        _0_0 = _this._async_evaluate$_outOfOrderImports;
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_).children;
+          break $label0$0;
+        }
+        t1 = _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_).children;
+        t1 = A.List_List$of(A.SubListIterable$(t1, 0, A.checkNotNullable(_this._async_evaluate$_assertInModule$2(_this._async_evaluate$__endOfImports, _s13_), "count", type$.int), t1.$ti._eval$1("ListBase.E")), true, type$.ModifiableCssNode);
+        B.JSArray_methods.addAll$1(t1, _0_0);
+        t2 = _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_).children;
+        B.JSArray_methods.addAll$1(t1, A.SubListIterable$(t2, _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__endOfImports, _s13_), null, t2.$ti._eval$1("ListBase.E")));
+        break $label0$0;
+      }
+      return t1;
+    },
+    _async_evaluate$_combineCss$2$clone(root, clone) {
+      var selectors, _0_0, t1, imports, css, sorted, t2;
+      if (!B.JSArray_methods.any$1(root.get$upstream(), new A._EvaluateVisitor__combineCss_closure1())) {
+        selectors = root.get$extensionStore().get$simpleSelectors();
+        _0_0 = A.IterableExtension_get_firstOrNull(root.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__combineCss_closure2(selectors)));
+        if (_0_0 != null)
+          this._async_evaluate$_throwForUnsatisfiedExtension$1(_0_0);
+        return root.get$css(root);
+      }
+      t1 = type$.JSArray_CssNode;
+      imports = A._setArrayType([], t1);
+      css = A._setArrayType([], t1);
+      t1 = type$.Module_AsyncCallable;
+      sorted = A.ListQueue$(t1);
+      new A._EvaluateVisitor__combineCss_visitModule0(this, A.LinkedHashSet_LinkedHashSet$_empty(t1), clone, css, imports, sorted).call$1(root);
+      if (root.get$transitivelyContainsExtensions())
+        this._async_evaluate$_extendModules$1(sorted);
+      t1 = B.JSArray_methods.$add(imports, css);
+      t2 = root.get$css(root);
+      return new A.CssStylesheet(new A.UnmodifiableListView(t1, type$.UnmodifiableListView_CssNode), t2.get$span(t2));
+    },
+    _async_evaluate$_combineCss$1(root) {
+      return this._async_evaluate$_combineCss$2$clone(root, false);
+    },
+    _async_evaluate$_extendModules$1(sortedModules) {
+      var t1, t2, t3, originalSelectors, $self, t4, t5, _i, upstream, _0_0,
+        downstreamExtensionStores = A.LinkedHashMap_LinkedHashMap$_empty(type$.Uri, type$.List_ExtensionStore),
+        unsatisfiedExtensions = new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_Extension);
+      for (t1 = A._ListQueueIterator$(sortedModules, sortedModules.$ti._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        originalSelectors = t3.get$extensionStore().get$simpleSelectors().toSet$0(0);
+        unsatisfiedExtensions.addAll$1(0, t3.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__extendModules_closure1(originalSelectors)));
+        $self = downstreamExtensionStores.$index(0, t3.get$url(t3));
+        t4 = t3.get$extensionStore().get$addExtensions();
+        if ($self != null)
+          t4.call$1($self);
+        t4 = t3.get$extensionStore();
+        if (t4.get$isEmpty(t4))
+          continue;
+        for (t4 = t3.get$upstream(), t5 = t4.length, _i = 0; _i < t4.length; t4.length === t5 || (0, A.throwConcurrentModificationError)(t4), ++_i) {
+          upstream = t4[_i];
+          _0_0 = upstream.get$url(upstream);
+          if (_0_0 != null)
+            J.add$1$ax(downstreamExtensionStores.putIfAbsent$2(_0_0, new A._EvaluateVisitor__extendModules_closure2()), t3.get$extensionStore());
+        }
+        unsatisfiedExtensions.removeAll$1(t3.get$extensionStore().extensionsWhereTarget$1(originalSelectors.get$contains(originalSelectors)));
+      }
+      if (unsatisfiedExtensions._collection$_length !== 0)
+        this._async_evaluate$_throwForUnsatisfiedExtension$1(unsatisfiedExtensions.get$first(0));
+    },
+    _async_evaluate$_throwForUnsatisfiedExtension$1(extension) {
+      throw A.wrapException(A.SassException$(string$.The_ta + extension.target.toString$0(0) + ' !optional" to avoid this error.', extension.span, null));
+    },
+    _async_evaluate$_indexAfterImports$1(statements) {
+      var t1, lastImport, i, _0_0;
+      for (t1 = J.getInterceptor$asx(statements), lastImport = -1, i = 0; i < t1.get$length(statements); ++i) {
+        $label0$0: {
+          _0_0 = t1.$index(statements, i);
+          if (_0_0 instanceof A.ModifiableCssImport)
+            break $label0$0;
+          if (_0_0 instanceof A.ModifiableCssComment)
+            continue;
+          break;
+        }
+        lastImport = i;
+      }
+      return lastImport + 1;
+    },
+    visitStylesheet$1(node) {
+      return this.visitStylesheet$body$_EvaluateVisitor(node);
+    },
+    visitStylesheet$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, _i;
+      var $async$visitStylesheet$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.children, t2 = t1.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t1[_i].accept$1($async$self), $async$visitStylesheet$1);
+            case 6:
+              // returning from await.
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitStylesheet$1, $async$completer);
+    },
+    visitAtRootRule$1(node) {
+      return this.visitAtRootRule$body$_EvaluateVisitor(node);
+    },
+    visitAtRootRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, _1_0, resolved, query, $parent, included, t1, _2_0, root, first, rest, innerCopy, outerCopy, _i, copy, _0_0;
+      var $async$visitAtRootRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _0_0 = node.query;
+              $async$goto = _0_0 != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolationWithMap$2$warnForColor(_0_0, true), $async$visitAtRootRule$1);
+            case 6:
+              // returning from await.
+              _1_0 = $async$result;
+              resolved = _1_0._0;
+              _1_0._1;
+              query = A.AtRootQueryParser$(resolved, $async$self._async_evaluate$_logger, null).parse$0();
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              query = B.AtRootQuery_n2q;
+            case 4:
+              // join
+              $parent = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent");
+              included = A._setArrayType([], type$.JSArray_ModifiableCssParentNode);
+              for (t1 = type$.CssStylesheet; !t1._is($parent); $parent = _2_0) {
+                if (!query.excludes$1($parent))
+                  included.push($parent);
+                _2_0 = $parent._parent;
+                if (_2_0 == null)
+                  throw A.wrapException(A.StateError$(string$.CssNod));
+              }
+              root = $async$self._async_evaluate$_trimIncluded$1(included);
+              $async$goto = root === $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") ? 7 : 8;
+              break;
+            case 7:
+              // then
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate$_environment.scope$1$2$when(new A._EvaluateVisitor_visitAtRootRule_closure1($async$self, node), node.hasDeclarations, type$.Null), $async$visitAtRootRule$1);
+            case 9:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 8:
+              // join
+              if (included.length >= 1) {
+                first = included[0];
+                rest = B.JSArray_methods.sublist$1(included, 1);
+                innerCopy = first.copyWithoutChildren$0();
+                for (t1 = rest.length, outerCopy = innerCopy, _i = 0; _i < rest.length; rest.length === t1 || (0, A.throwConcurrentModificationError)(rest), ++_i, outerCopy = copy) {
+                  copy = rest[_i].copyWithoutChildren$0();
+                  copy.addChild$1(outerCopy);
+                }
+                root.addChild$1(outerCopy);
+              } else
+                innerCopy = root;
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate$_scopeForAtRoot$4(node, innerCopy, query, included).call$1(new A._EvaluateVisitor_visitAtRootRule_closure2($async$self, node)), $async$visitAtRootRule$1);
+            case 10:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitAtRootRule$1, $async$completer);
+    },
+    _async_evaluate$_trimIncluded$1(nodes) {
+      var $parent, t1, innermostContiguous, i, t2, _0_0, _1_0, root, _this = this, _null = null, _s5_ = "_root",
+        _s22_ = " to be an ancestor of ";
+      if (nodes.length === 0)
+        return _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_);
+      $parent = _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__parent, "__parent");
+      for (t1 = nodes.length, innermostContiguous = _null, i = 0; i < t1; ++i, $parent = _1_0) {
+        for (; t2 = nodes[i], $parent !== t2; innermostContiguous = _null, $parent = _0_0) {
+          _0_0 = $parent._parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+        }
+        if (innermostContiguous == null)
+          innermostContiguous = i;
+        _1_0 = $parent._parent;
+        if (_1_0 == null)
+          throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+      }
+      if ($parent !== _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_))
+        return _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_);
+      innermostContiguous.toString;
+      root = nodes[innermostContiguous];
+      B.JSArray_methods.removeRange$2(nodes, innermostContiguous, nodes.length);
+      return root;
+    },
+    _async_evaluate$_scopeForAtRoot$4(node, newParent, query, included) {
+      var _this = this,
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure5(_this, newParent, node),
+        t1 = query._all || query._at_root_query$_rule;
+      if (t1 !== query.include)
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure6(_this, scope);
+      if (_this._async_evaluate$_mediaQueries != null && query.excludesName$1("media"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure7(_this, scope);
+      if (_this._async_evaluate$_inKeyframes && query.excludesName$1("keyframes"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure8(_this, scope);
+      return _this._async_evaluate$_inUnknownAtRule && !B.JSArray_methods.any$1(included, new A._EvaluateVisitor__scopeForAtRoot_closure9()) ? new A._EvaluateVisitor__scopeForAtRoot_closure10(_this, scope) : scope;
+    },
+    visitContentBlock$1(node) {
+      return A.throwExpression(A.UnsupportedError$(string$.Evalua));
+    },
+    visitContentRule$1(node) {
+      return this.visitContentRule$body$_EvaluateVisitor(node);
+    },
+    visitContentRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, $content;
+      var $async$visitContentRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $content = $async$self._async_evaluate$_environment._async_environment$_content;
+              if ($content == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_runUserDefinedCallable$1$4(node.$arguments, $content, node, new A._EvaluateVisitor_visitContentRule_closure0($async$self, $content), type$.Null), $async$visitContentRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitContentRule$1, $async$completer);
+    },
+    visitDebugRule$1(node) {
+      return this.visitDebugRule$body$_EvaluateVisitor(node);
+    },
+    visitDebugRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, value, t1;
+      var $async$visitDebugRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait(node.expression.accept$1($async$self), $async$visitDebugRule$1);
+            case 3:
+              // returning from await.
+              value = $async$result;
+              t1 = value instanceof A.SassString ? value._string$_text : A.serializeValue(value, true, true);
+              $async$self._async_evaluate$_logger.debug$2(0, t1, node.span);
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitDebugRule$1, $async$completer);
+    },
+    visitDeclaration$1(node) {
+      return this.visitDeclaration$body$_EvaluateVisitor(node);
+    },
+    visitDeclaration$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t2, $name, _0_0, _1_0, value, t3, t4, t5, _2_0, oldDeclarationName, t1;
+      var $async$visitDeclaration$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              if (($async$self._async_evaluate$_atRootExcludingStyleRule ? null : $async$self._async_evaluate$_styleRuleIgnoringAtRoot) == null && !$async$self._async_evaluate$_inUnknownAtRule && !$async$self._async_evaluate$_inKeyframes)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Declarm, node.span));
+              if ($async$self._async_evaluate$_declarationName != null && B.JSString_methods.startsWith$1(node.name.get$initialPlain(), "--"))
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Declarw, node.span));
+              t2 = node.name;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_interpolationToValue$2$warnForColor(t2, true), $async$visitDeclaration$1);
+            case 3:
+              // returning from await.
+              $name = $async$result;
+              _0_0 = $async$self._async_evaluate$_declarationName;
+              if (_0_0 != null)
+                $name = new A.CssValue(_0_0 + "-" + A.S($name.value), $name.span, type$.CssValue_String);
+              _1_0 = node.value;
+              $async$goto = _1_0 != null ? 4 : 5;
+              break;
+            case 4:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait(_1_0.accept$1($async$self), $async$visitDeclaration$1);
+            case 6:
+              // returning from await.
+              value = $async$result;
+              if (!value.get$isBlank() || value.get$asList().length === 0) {
+                t3 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent");
+                t4 = _1_0.get$span(_1_0);
+                t2 = B.JSString_methods.startsWith$1(t2.get$initialPlain(), "--");
+                if ($async$self._async_evaluate$_sourceMap) {
+                  t5 = A.NullableExtension_andThen(_1_0, $async$self.get$_async_evaluate$_expressionNode());
+                  t5 = t5 == null ? null : J.get$span$z(t5);
+                } else
+                  t5 = null;
+                t3.addChild$1(A.ModifiableCssDeclaration$($name, new A.CssValue(value, t4, type$.CssValue_Value), node.span, t2, t5));
+              } else if (J.startsWith$1$s($name.value, "--"))
+                throw A.wrapException($async$self._async_evaluate$_exception$2("Custom property values may not be empty.", _1_0.get$span(_1_0)));
+            case 5:
+              // join
+              _2_0 = node.children;
+              t1.children = null;
+              $async$goto = _2_0 != null ? 7 : 8;
+              break;
+            case 7:
+              // then
+              t1.children = _2_0;
+              oldDeclarationName = $async$self._async_evaluate$_declarationName;
+              $async$self._async_evaluate$_declarationName = $name.value;
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate$_environment.scope$1$2$when(new A._EvaluateVisitor_visitDeclaration_closure0(t1, $async$self), node.hasDeclarations, type$.Null), $async$visitDeclaration$1);
+            case 9:
+              // returning from await.
+              $async$self._async_evaluate$_declarationName = oldDeclarationName;
+            case 8:
+              // join
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitDeclaration$1, $async$completer);
+    },
+    visitEachRule$1(node) {
+      return this.visitEachRule$body$_EvaluateVisitor(node);
+    },
+    visitEachRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, _box_0, t1, list, nodeWithSpan, _0_0;
+      var $async$visitEachRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              t1 = node.list;
+              $async$goto = 3;
+              return A._asyncAwait(t1.accept$1($async$self), $async$visitEachRule$1);
+            case 3:
+              // returning from await.
+              list = $async$result;
+              nodeWithSpan = $async$self._async_evaluate$_expressionNode$1(t1);
+              _0_0 = node.variables;
+              $label0$0: {
+                _box_0.variable = null;
+                if (_0_0.length === 1) {
+                  _box_0.variable = _0_0[0];
+                  t1 = new A._EvaluateVisitor_visitEachRule_closure2(_box_0, $async$self, nodeWithSpan);
+                  break $label0$0;
+                }
+                _box_0.variables = null;
+                _box_0.variables = _0_0;
+                t1 = new A._EvaluateVisitor_visitEachRule_closure3(_box_0, $async$self, nodeWithSpan);
+                break $label0$0;
+              }
+              $async$returnValue = $async$self._async_evaluate$_environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitEachRule_closure4($async$self, list, t1, node), true, type$.nullable_Value);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitEachRule$1, $async$completer);
+    },
+    _async_evaluate$_setMultipleVariables$3(variables, value, nodeWithSpan) {
+      var i,
+        list = value.get$asList(),
+        t1 = variables.length,
+        minLength = Math.min(t1, list.length);
+      for (i = 0; i < minLength; ++i)
+        this._async_evaluate$_environment.setLocalVariable$3(variables[i], this._async_evaluate$_withoutSlash$2(list[i], nodeWithSpan), nodeWithSpan);
+      for (i = minLength; i < t1; ++i)
+        this._async_evaluate$_environment.setLocalVariable$3(variables[i], B.C__SassNull, nodeWithSpan);
+    },
+    visitErrorRule$1(node) {
+      return this.visitErrorRule$body$_EvaluateVisitor(node);
+    },
+    visitErrorRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$self = this, $async$temp1, $async$temp2;
+      var $async$visitErrorRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$temp2 = J;
+              $async$goto = 2;
+              return A._asyncAwait(node.expression.accept$1($async$self), $async$visitErrorRule$1);
+            case 2:
+              // returning from await.
+              throw $async$temp1.wrapException($async$self._async_evaluate$_exception$2($async$temp2.toString$0$($async$result), node.span));
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitErrorRule$1, $async$completer);
+    },
+    visitExtendRule$1(node) {
+      return this.visitExtendRule$body$_EvaluateVisitor(node);
+    },
+    visitExtendRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, t5, _i, complex, visitor, t6, t7, _0_0, targetText, targetMap, compound, styleRule;
+      var $async$visitExtendRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              styleRule = $async$self._async_evaluate$_atRootExcludingStyleRule ? null : $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+              if (styleRule == null || $async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.x40exten, node.span));
+              for (t1 = styleRule.originalSelector.components, t2 = t1.length, t3 = node.span, t4 = type$.SourceSpan, t5 = type$.String, _i = 0; _i < t2; ++_i) {
+                complex = t1[_i];
+                if (!complex.accept$1(B._IsBogusVisitor_true))
+                  continue;
+                visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+                complex.accept$1(visitor);
+                t6 = B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0));
+                t7 = complex.accept$1(B.C__IsUselessVisitor) ? "can't" : "shouldn't";
+                $async$self._async_evaluate$_warn$3('The selector "' + t6 + '" is invalid CSS and ' + t7 + string$.x20be_an, new A.MultiSpan(A.SpanExtensions_trimRight(complex.span), "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t3, "@extend rule"], t4, t5), t4, t5)), B.Deprecation_ido);
+              }
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolationWithMap$2$warnForColor(node.selector, true), $async$visitExtendRule$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              targetText = _0_0._0;
+              targetMap = _0_0._1;
+              for (t1 = A.SelectorList_SelectorList$parse(A.trimAscii(targetText, true), false, targetMap, $async$self._async_evaluate$_logger, false).components, t2 = t1.length, t3 = styleRule._style_rule$_selector._box$_inner, _i = 0; _i < t2; ++_i) {
+                complex = t1[_i];
+                compound = complex.get$singleCompound();
+                if (compound == null)
+                  throw A.wrapException(A.SassFormatException$("complex selectors may not be extended.", complex.span, null));
+                t4 = compound.components;
+                t5 = t4.length === 1 ? B.JSArray_methods.get$first(t4) : null;
+                if (t5 == null)
+                  throw A.wrapException(A.SassFormatException$(string$.compou + B.JSArray_methods.join$1(t4, ", ") + string$.x60_inst, compound.span, null));
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__extensionStore, "_extensionStore").addExtension$4(t3.value, t5, node, $async$self._async_evaluate$_mediaQueries);
+              }
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitExtendRule$1, $async$completer);
+    },
+    visitAtRule$1(node) {
+      return this.visitAtRule$body$_EvaluateVisitor(node);
+    },
+    visitAtRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, $name, t1, value, children, wasInKeyframes, wasInUnknownAtRule;
+      var $async$visitAtRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.At_rul, node.span));
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_interpolationToValue$1(node.name), $async$visitAtRule$1);
+            case 3:
+              // returning from await.
+              $name = $async$result;
+              t1 = A.NullableExtension_andThen(node.value, new A._EvaluateVisitor_visitAtRule_closure2($async$self));
+              $async$goto = 4;
+              return A._asyncAwait(type$.Future_nullable_CssValue_String._is(t1) ? t1 : A._Future$value(t1, type$.nullable_CssValue_String), $async$visitAtRule$1);
+            case 4:
+              // returning from await.
+              value = $async$result;
+              children = node.children;
+              if (children == null) {
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").addChild$1(A.ModifiableCssAtRule$($name, node.span, true, value));
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              wasInKeyframes = $async$self._async_evaluate$_inKeyframes;
+              wasInUnknownAtRule = $async$self._async_evaluate$_inUnknownAtRule;
+              if (A.unvendor($name.value) === "keyframes")
+                $async$self._async_evaluate$_inKeyframes = true;
+              else
+                $async$self._async_evaluate$_inUnknownAtRule = true;
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$($name, node.span, false, value), new A._EvaluateVisitor_visitAtRule_closure3($async$self, $name, children), node.hasDeclarations, new A._EvaluateVisitor_visitAtRule_closure4(), type$.ModifiableCssAtRule, type$.Null), $async$visitAtRule$1);
+            case 5:
+              // returning from await.
+              $async$self._async_evaluate$_inUnknownAtRule = wasInUnknownAtRule;
+              $async$self._async_evaluate$_inKeyframes = wasInKeyframes;
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitAtRule$1, $async$completer);
+    },
+    visitForRule$1(node) {
+      return this.visitForRule$body$_EvaluateVisitor(node);
+    },
+    visitForRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, fromNumber, t4, toNumber, from, to, direction;
+      var $async$visitForRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              t2 = node.from;
+              t3 = type$.SassNumber;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._addExceptionSpanAsync$1$2(t2, new A._EvaluateVisitor_visitForRule_closure4($async$self, node), t3), $async$visitForRule$1);
+            case 3:
+              // returning from await.
+              fromNumber = $async$result;
+              t4 = node.to;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._addExceptionSpanAsync$1$2(t4, new A._EvaluateVisitor_visitForRule_closure5($async$self, node), t3), $async$visitForRule$1);
+            case 4:
+              // returning from await.
+              toNumber = $async$result;
+              from = $async$self._async_evaluate$_addExceptionSpan$2(t2, new A._EvaluateVisitor_visitForRule_closure6(fromNumber));
+              to = t1.to = $async$self._async_evaluate$_addExceptionSpan$2(t4, new A._EvaluateVisitor_visitForRule_closure7(toNumber, fromNumber));
+              direction = from > to ? -1 : 1;
+              if (from === (!node.isExclusive ? t1.to = to + direction : to)) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$returnValue = $async$self._async_evaluate$_environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitForRule_closure8(t1, $async$self, node, from, direction, fromNumber), true, type$.nullable_Value);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitForRule$1, $async$completer);
+    },
+    visitForwardRule$1(node) {
+      return this.visitForwardRule$body$_EvaluateVisitor(node);
+    },
+    visitForwardRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, newConfiguration, t4, _i, variable, $name, oldConfiguration, adjustedConfiguration, t1, t2, t3;
+      var $async$visitForwardRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldConfiguration = $async$self._async_evaluate$_configuration;
+              adjustedConfiguration = oldConfiguration.throughForward$1(node);
+              t1 = node.configuration;
+              t2 = t1.length;
+              t3 = node.url;
+              $async$goto = t2 !== 0 ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_addForwardConfiguration$2(adjustedConfiguration, node), $async$visitForwardRule$1);
+            case 6:
+              // returning from await.
+              newConfiguration = $async$result;
+              $async$goto = 7;
+              return A._asyncAwait($async$self._async_evaluate$_loadModule$5$configuration(t3, "@forward", node, new A._EvaluateVisitor_visitForwardRule_closure1($async$self, node), newConfiguration), $async$visitForwardRule$1);
+            case 7:
+              // returning from await.
+              t3 = type$.String;
+              t4 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+              for (_i = 0; _i < t2; ++_i) {
+                variable = t1[_i];
+                if (!variable.isGuarded)
+                  t4.add$1(0, variable.name);
+              }
+              $async$self._async_evaluate$_removeUsedConfiguration$3$except(adjustedConfiguration, newConfiguration, t4);
+              t3 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+              for (_i = 0; _i < t2; ++_i)
+                t3.add$1(0, t1[_i].name);
+              for (t1 = newConfiguration._configuration$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t4 = t2.length, _i = 0; _i < t2.length; t2.length === t4 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+                $name = t2[_i];
+                if (!t3.contains$1(0, $name))
+                  if (!t1.get$isEmpty(t1))
+                    t1.remove$1(0, $name);
+              }
+              $async$self._async_evaluate$_assertConfigurationIsEmpty$1(newConfiguration);
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$self._async_evaluate$_configuration = adjustedConfiguration;
+              $async$goto = 8;
+              return A._asyncAwait($async$self._async_evaluate$_loadModule$4(t3, "@forward", node, new A._EvaluateVisitor_visitForwardRule_closure2($async$self, node)), $async$visitForwardRule$1);
+            case 8:
+              // returning from await.
+              $async$self._async_evaluate$_configuration = oldConfiguration;
+            case 4:
+              // join
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitForwardRule$1, $async$completer);
+    },
+    _async_evaluate$_addForwardConfiguration$2(configuration, node) {
+      return this._addForwardConfiguration$body$_EvaluateVisitor(configuration, node);
+    },
+    _addForwardConfiguration$body$_EvaluateVisitor(configuration, node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Configuration),
+        $async$returnValue, $async$self = this, t2, t3, t4, t5, _i, variable, t6, oldValue, t7, variableNodeWithSpan, t8, t1, newValues, $async$temp1, $async$temp2, $async$temp3;
+      var $async$_async_evaluate$_addForwardConfiguration$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = configuration._configuration$_values;
+              newValues = A.LinkedHashMap_LinkedHashMap$of(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue), type$.String, type$.ConfiguredValue);
+              t2 = node.configuration, t3 = t2.length, t4 = type$._Future_Value, t5 = type$.Future_Value, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              variable = t2[_i];
+              if (variable.isGuarded) {
+                t6 = variable.name;
+                oldValue = t1.get$isEmpty(t1) ? null : t1.remove$1(0, t6);
+                if (oldValue != null)
+                  t7 = !oldValue.value.$eq(0, B.C__SassNull);
+                else {
+                  oldValue = null;
+                  t7 = false;
+                }
+                if (t7) {
+                  newValues.$indexSet(0, t6, oldValue);
+                  // goto for update
+                  $async$goto = 4;
+                  break;
+                }
+              }
+              t6 = variable.expression;
+              variableNodeWithSpan = $async$self._async_evaluate$_expressionNode$1(t6);
+              t7 = variable.name;
+              t6 = t6.accept$1($async$self);
+              if (!t5._is(t6)) {
+                t8 = new A._Future($.Zone__current, t4);
+                t8._state = 8;
+                t8._resultOrListeners = t6;
+                t6 = t8;
+              }
+              $async$temp1 = newValues;
+              $async$temp2 = t7;
+              $async$temp3 = A;
+              $async$goto = 6;
+              return A._asyncAwait(t6, $async$_async_evaluate$_addForwardConfiguration$2);
+            case 6:
+              // returning from await.
+              $async$temp1.$indexSet(0, $async$temp2, new $async$temp3.ConfiguredValue($async$self._async_evaluate$_withoutSlash$2($async$result, variableNodeWithSpan), variable.span, variableNodeWithSpan));
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              if (configuration instanceof A.ExplicitConfiguration || t1.get$isEmpty(t1)) {
+                $async$returnValue = new A.ExplicitConfiguration(node, newValues, null);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else {
+                $async$returnValue = new A.Configuration(newValues, null);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_addForwardConfiguration$2, $async$completer);
+    },
+    _async_evaluate$_registerCommentsForModule$1(module) {
+      var _this = this, _s5_ = "_root",
+        t1 = _this._async_evaluate$__root;
+      if (t1 == null)
+        return;
+      if (_this._async_evaluate$_assertInModule$2(t1, _s5_).children.get$length(0) === 0 || !module.get$transitivelyContainsCss())
+        return;
+      t1 = _this._async_evaluate$_preModuleComments;
+      if (t1 == null)
+        t1 = _this._async_evaluate$_preModuleComments = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_AsyncCallable, type$.List_CssComment);
+      J.addAll$1$ax(t1.putIfAbsent$2(module, new A._EvaluateVisitor__registerCommentsForModule_closure0()), new A.UnmodifiableListView(J.cast$1$0$ax(_this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_).children._collection$_source, type$.CssComment), type$.UnmodifiableListView_CssComment));
+      _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__root, _s5_).clearChildren$0();
+      _this._async_evaluate$__endOfImports = 0;
+    },
+    _async_evaluate$_removeUsedConfiguration$3$except(upstream, downstream, except) {
+      var t1, t2, t3, t4, _i, $name;
+      for (t1 = upstream._configuration$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t3 = t2.length, t4 = downstream._configuration$_values, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        $name = t2[_i];
+        if (except.contains$1(0, $name))
+          continue;
+        if (!t4.containsKey$1($name))
+          if (!t1.get$isEmpty(t1))
+            t1.remove$1(0, $name);
+      }
+    },
+    _async_evaluate$_assertConfigurationIsEmpty$2$nameInError(configuration, nameInError) {
+      var t1, _0_0, $name, value;
+      if (!(configuration instanceof A.ExplicitConfiguration))
+        return;
+      t1 = configuration._configuration$_values;
+      if (t1.get$isEmpty(t1))
+        return;
+      t1 = A.MapExtensions_get_pairs(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue), type$.String, type$.ConfiguredValue);
+      _0_0 = t1.get$first(t1);
+      $name = _0_0._0;
+      value = _0_0._1;
+      t1 = nameInError ? "$" + $name + string$.x20was_n : string$.This_v;
+      throw A.wrapException(this._async_evaluate$_exception$2(t1, value.configurationSpan));
+    },
+    _async_evaluate$_assertConfigurationIsEmpty$1(configuration) {
+      return this._async_evaluate$_assertConfigurationIsEmpty$2$nameInError(configuration, false);
+    },
+    visitFunctionRule$1(node) {
+      return this.visitFunctionRule$body$_EvaluateVisitor(node);
+    },
+    visitFunctionRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, index, t5;
+      var $async$visitFunctionRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate$_environment;
+              t2 = t1.closure$0();
+              t3 = $async$self._async_evaluate$_inDependency;
+              t4 = t1._async_environment$_functions;
+              index = t4.length - 1;
+              t5 = node.name;
+              t1._async_environment$_functionIndices.$indexSet(0, t5, index);
+              J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable(node, t2, t3, type$.UserDefinedCallable_AsyncEnvironment));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitFunctionRule$1, $async$completer);
+    },
+    visitIfRule$1(node) {
+      return this.visitIfRule$body$_EvaluateVisitor(node);
+    },
+    visitIfRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, _i, clauseToCheck, clause;
+      var $async$visitIfRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              clause = node.lastClause;
+              t1 = node.clauses, t2 = t1.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              clauseToCheck = t1[_i];
+              $async$goto = 6;
+              return A._asyncAwait(clauseToCheck.expression.accept$1($async$self), $async$visitIfRule$1);
+            case 6:
+              // returning from await.
+              if ($async$result.get$isTruthy()) {
+                clause = clauseToCheck;
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              t1 = A.NullableExtension_andThen(clause, new A._EvaluateVisitor_visitIfRule_closure0($async$self));
+              $async$goto = 7;
+              return A._asyncAwait(type$.Future_nullable_Value._is(t1) ? t1 : A._Future$value(t1, type$.nullable_Value), $async$visitIfRule$1);
+            case 7:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitIfRule$1, $async$completer);
+    },
+    visitImportRule$1(node) {
+      return this.visitImportRule$body$_EvaluateVisitor(node);
+    },
+    visitImportRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, _i, $import;
+      var $async$visitImportRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.imports, t2 = t1.length, t3 = type$.StaticImport, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $import = t1[_i];
+              $async$goto = $import instanceof A.DynamicImport ? 6 : 8;
+              break;
+            case 6:
+              // then
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate$_visitDynamicImport$1($import), $async$visitImportRule$1);
+            case 9:
+              // returning from await.
+              // goto join
+              $async$goto = 7;
+              break;
+            case 8:
+              // else
+              $async$goto = 10;
+              return A._asyncAwait($async$self._visitStaticImport$1(t3._as($import)), $async$visitImportRule$1);
+            case 10:
+              // returning from await.
+            case 7:
+              // join
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitImportRule$1, $async$completer);
+    },
+    _async_evaluate$_visitDynamicImport$1($import) {
+      return this._async_evaluate$_withStackFrame$1$3("@import", $import, new A._EvaluateVisitor__visitDynamicImport_closure0(this, $import), type$.void);
+    },
+    _async_evaluate$_loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, forImport) {
+      return this._loadStylesheet$body$_EvaluateVisitor(url, span, baseUrl, forImport);
+    },
+    _async_evaluate$_loadStylesheet$3$baseUrl(url, span, baseUrl) {
+      return this._async_evaluate$_loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, false);
+    },
+    _async_evaluate$_loadStylesheet$3$forImport(url, span, forImport) {
+      return this._async_evaluate$_loadStylesheet$4$baseUrl$forImport(url, span, null, forImport);
+    },
+    _loadStylesheet$body$_EvaluateVisitor(url, span, baseUrl, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_3_Stylesheet_and_nullable_AsyncImporter_importer_and_bool_isDependency),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, _0_0, importCache, _1_0, importer, canonicalUrl, originalUrl, isDependency, _2_0, stylesheet, error, stackTrace, error0, stackTrace0, message, t1, t2, t3, t4, exception, message0, $async$exception;
+      var $async$_async_evaluate$_loadStylesheet$4$baseUrl$forImport = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              baseUrl = baseUrl;
+              $async$handler = 4;
+              $async$self._async_evaluate$_importSpan = span;
+              _0_0 = $async$self._async_evaluate$_importCache;
+              importCache = null;
+              $async$goto = _0_0 != null ? 7 : 8;
+              break;
+            case 7:
+              // then
+              importCache = _0_0;
+              if (baseUrl == null) {
+                t1 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").span;
+                baseUrl = t1.get$sourceUrl(t1);
+              }
+              $async$goto = 9;
+              return A._asyncAwait(J.canonicalize$4$baseImporter$baseUrl$forImport$x(importCache, A.Uri_parse(url), $async$self._async_evaluate$_importer, baseUrl, forImport), $async$_async_evaluate$_loadStylesheet$4$baseUrl$forImport);
+            case 9:
+              // returning from await.
+              _1_0 = $async$result;
+              importer = null;
+              canonicalUrl = null;
+              originalUrl = null;
+              $async$goto = type$.Record_3_nullable_Object_and_nullable_Object_and_nullable_Object_originalUrl._is(_1_0) ? 10 : 11;
+              break;
+            case 10:
+              // then
+              importer = _1_0._0;
+              canonicalUrl = _1_0._1;
+              originalUrl = _1_0._2;
+              $async$self._async_evaluate$_loadedUrls.add$1(0, canonicalUrl);
+              isDependency = $async$self._async_evaluate$_inDependency || !J.$eq$(importer, $async$self._async_evaluate$_importer);
+              t1 = importCache;
+              t2 = importer;
+              t3 = canonicalUrl;
+              t4 = originalUrl;
+              $async$goto = 12;
+              return A._asyncAwait(t1.importCanonical$4$originalUrl$quiet(t2, t3, t4, $async$self._async_evaluate$_quietDeps && isDependency), $async$_async_evaluate$_loadStylesheet$4$baseUrl$forImport);
+            case 12:
+              // returning from await.
+              _2_0 = $async$result;
+              stylesheet = null;
+              if (_2_0 != null) {
+                stylesheet = _2_0;
+                t1 = stylesheet;
+                t2 = importer;
+                $async$returnValue = new A._Record_3_importer_isDependency(t1, t2, isDependency);
+                $async$next = [1];
+                // goto finally
+                $async$goto = 5;
+                break;
+              }
+            case 11:
+              // join
+            case 8:
+              // join
+              t1 = B.JSString_methods.startsWith$1(url, "package:");
+              if (t1)
+                throw A.wrapException(string$.x22packa);
+              else
+                throw A.wrapException("Can't find stylesheet to import.");
+              $async$next.push(6);
+              // goto finally
+              $async$goto = 5;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException)
+                throw $async$exception;
+              else if (t1 instanceof A.ArgumentError) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                A.throwWithTrace($async$self._async_evaluate$_exception$1(J.toString$0$(error)), error, stackTrace);
+              } else {
+                error0 = t1;
+                stackTrace0 = A.getTraceFromException($async$exception);
+                message = null;
+                try {
+                  message = A._asString(J.get$message$x(error0));
+                } catch (exception) {
+                  message0 = J.toString$0$(error0);
+                  message = message0;
+                }
+                A.throwWithTrace($async$self._async_evaluate$_exception$1(message), error0, stackTrace0);
+              }
+              $async$next.push(6);
+              // goto finally
+              $async$goto = 5;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [2];
+            case 5:
+              // finally
+              $async$handler = 2;
+              $async$self._async_evaluate$_importSpan = null;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_loadStylesheet$4$baseUrl$forImport, $async$completer);
+    },
+    _visitStaticImport$1($import) {
+      return this._visitStaticImport$body$_EvaluateVisitor($import);
+    },
+    _visitStaticImport$body$_EvaluateVisitor($import) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, t2, node, $async$temp1, $async$temp2;
+      var $async$_visitStaticImport$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate$_interpolationToValue$1($import.url), $async$_visitStaticImport$1);
+            case 2:
+              // returning from await.
+              t1 = $async$result;
+              t2 = A.NullableExtension_andThen($import.modifiers, $async$self.get$_async_evaluate$_interpolationToValue());
+              $async$temp1 = A;
+              $async$temp2 = t1;
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_nullable_CssValue_String._is(t2) ? t2 : A._Future$value(t2, type$.nullable_CssValue_String), $async$_visitStaticImport$1);
+            case 3:
+              // returning from await.
+              node = new $async$temp1.ModifiableCssImport($async$temp2, $async$result, $import.span);
+              if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") !== $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root"))
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").addChild$1(node);
+              else if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root").children._collection$_source)) {
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root").addChild$1(node);
+                $async$self._async_evaluate$__endOfImports = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") + 1;
+              } else {
+                t1 = $async$self._async_evaluate$_outOfOrderImports;
+                (t1 == null ? $async$self._async_evaluate$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport) : t1).push(node);
+              }
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_visitStaticImport$1, $async$completer);
+    },
+    _async_evaluate$_applyMixin$5(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent) {
+      return this._applyMixin$body$_EvaluateVisitor(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent);
+    },
+    _applyMixin$body$_EvaluateVisitor(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, _0_0, _1_8, t2;
+      var $async$_async_evaluate$_applyMixin$5 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (mixin == null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2("Undefined mixin.", nodeWithSpan.get$span(nodeWithSpan)));
+              t1 = type$.AsyncBuiltInCallable._is(mixin);
+              $async$goto = t1 && !mixin.get$acceptsContent() && contentCallable != null ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate$_evaluateArguments$1($arguments), $async$_async_evaluate$_applyMixin$5);
+            case 5:
+              // returning from await.
+              t1 = $async$result._values;
+              _0_0 = mixin.callbackFor$2(J.get$length$asx(t1[2]), new A.MapKeySet(t1[0], type$.MapKeySet_String));
+              throw A.wrapException(A.MultiSpanSassRuntimeException$("Mixin doesn't accept a content block.", nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([_0_0._0.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), $async$self._async_evaluate$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+            case 4:
+              // join
+              $async$goto = t1 ? 6 : 7;
+              break;
+            case 6:
+              // then
+              $async$goto = 8;
+              return A._asyncAwait($async$self._async_evaluate$_environment.withContent$2(contentCallable, new A._EvaluateVisitor__applyMixin_closure1($async$self, $arguments, mixin, nodeWithSpanWithoutContent)), $async$_async_evaluate$_applyMixin$5);
+            case 8:
+              // returning from await.
+              // goto break $label0$0
+              $async$goto = 2;
+              break;
+            case 7:
+              // join
+              t1 = type$.UserDefinedCallable_AsyncEnvironment._is(mixin);
+              if (t1) {
+                _1_8 = mixin.declaration;
+                if (_1_8 instanceof A.MixinRule)
+                  t2 = !type$.MixinRule._as(_1_8).get$hasContent() && contentCallable != null;
+                else
+                  t2 = false;
+              } else
+                t2 = false;
+              if (t2)
+                throw A.wrapException(A.MultiSpanSassRuntimeException$("Mixin doesn't accept a content block.", nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([mixin.declaration.$arguments.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), $async$self._async_evaluate$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+              $async$goto = t1 ? 9 : 10;
+              break;
+            case 9:
+              // then
+              $async$goto = 11;
+              return A._asyncAwait($async$self._async_evaluate$_runUserDefinedCallable$1$4($arguments, mixin, nodeWithSpanWithoutContent, new A._EvaluateVisitor__applyMixin_closure2($async$self, contentCallable, mixin, nodeWithSpanWithoutContent), type$.Null), $async$_async_evaluate$_applyMixin$5);
+            case 11:
+              // returning from await.
+              // goto break $label0$0
+              $async$goto = 2;
+              break;
+            case 10:
+              // join
+              throw A.wrapException(A.UnsupportedError$("Unknown callable type " + mixin.toString$0(0) + "."));
+            case 2:
+              // break $label0$0
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_applyMixin$5, $async$completer);
+    },
+    visitIncludeRule$1(node) {
+      return this.visitIncludeRule$body$_EvaluateVisitor(node);
+    },
+    visitIncludeRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, mixin;
+      var $async$visitIncludeRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              mixin = $async$self._async_evaluate$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitIncludeRule_closure2($async$self, node));
+              if (B.JSString_methods.startsWith$1(node.originalName, "--") && mixin instanceof A.UserDefinedCallable && !B.JSString_methods.startsWith$1(mixin.declaration.originalName, "--"))
+                $async$self._async_evaluate$_warn$3(string$.Sass__m, node.get$nameSpan(), B.Deprecation_HJ0);
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_applyMixin$5(mixin, A.NullableExtension_andThen(node.content, new A._EvaluateVisitor_visitIncludeRule_closure3($async$self)), node.$arguments, node, new A._FakeAstNode(new A._EvaluateVisitor_visitIncludeRule_closure4(node))), $async$visitIncludeRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitIncludeRule$1, $async$completer);
+    },
+    visitMixinRule$1(node) {
+      return this.visitMixinRule$body$_EvaluateVisitor(node);
+    },
+    visitMixinRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, index, t5;
+      var $async$visitMixinRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate$_environment;
+              t2 = t1.closure$0();
+              t3 = $async$self._async_evaluate$_inDependency;
+              t4 = t1._async_environment$_mixins;
+              index = t4.length - 1;
+              t5 = node.name;
+              t1._async_environment$_mixinIndices.$indexSet(0, t5, index);
+              J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable(node, t2, t3, type$.UserDefinedCallable_AsyncEnvironment));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitMixinRule$1, $async$completer);
+    },
+    visitLoudComment$1(node) {
+      return this.visitLoudComment$body$_EvaluateVisitor(node);
+    },
+    visitLoudComment$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, $async$temp1, $async$temp2;
+      var $async$visitLoudComment$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_inFunction) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") === $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root") && $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root").children._collection$_source))
+                $async$self._async_evaluate$__endOfImports = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") + 1;
+              t1 = node.text;
+              $async$temp1 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent");
+              $async$temp2 = A;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$1(t1), $async$visitLoudComment$1);
+            case 3:
+              // returning from await.
+              $async$temp1.addChild$1(new $async$temp2.ModifiableCssComment($async$result, t1.span));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitLoudComment$1, $async$completer);
+    },
+    visitMediaRule$1(node) {
+      return this.visitMediaRule$body$_EvaluateVisitor(node);
+    },
+    visitMediaRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, queries, mergedQueries, t1, mergedSources, t2, t3;
+      var $async$visitMediaRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Media_, node.span));
+              $async$goto = 3;
+              return A._asyncAwait($async$self._visitMediaQueries$1(node.query), $async$visitMediaRule$1);
+            case 3:
+              // returning from await.
+              queries = $async$result;
+              mergedQueries = A.NullableExtension_andThen($async$self._async_evaluate$_mediaQueries, new A._EvaluateVisitor_visitMediaRule_closure2($async$self, queries));
+              t1 = mergedQueries == null;
+              if (!t1 && J.get$isEmpty$asx(mergedQueries)) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (t1)
+                mergedSources = B.Set_empty1;
+              else {
+                t2 = $async$self._async_evaluate$_mediaQuerySources;
+                t2.toString;
+                t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery);
+                t3 = $async$self._async_evaluate$_mediaQueries;
+                t3.toString;
+                t2.addAll$1(0, t3);
+                t2.addAll$1(0, queries);
+                mergedSources = t2;
+              }
+              t1 = t1 ? queries : mergedQueries;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$(t1, node.span), new A._EvaluateVisitor_visitMediaRule_closure3($async$self, mergedQueries, queries, mergedSources, node), node.hasDeclarations, new A._EvaluateVisitor_visitMediaRule_closure4(mergedSources), type$.ModifiableCssMediaRule, type$.Null), $async$visitMediaRule$1);
+            case 4:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitMediaRule$1, $async$completer);
+    },
+    _visitMediaQueries$1(interpolation) {
+      return this._visitMediaQueries$body$_EvaluateVisitor(interpolation);
+    },
+    _visitMediaQueries$body$_EvaluateVisitor(interpolation) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.List_CssMediaQuery),
+        $async$returnValue, $async$self = this, _0_0;
+      var $async$_visitMediaQueries$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolationWithMap$2$warnForColor(interpolation, true), $async$_visitMediaQueries$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              $async$returnValue = A.CssMediaQuery_parseList(_0_0._0, _0_0._1, $async$self._async_evaluate$_logger);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_visitMediaQueries$1, $async$completer);
+    },
+    _async_evaluate$_mergeMediaQueries$2(queries1, queries2) {
+      var t1, t2, t3, t4, _0_0, t5, result,
+        queries = A._setArrayType([], type$.JSArray_CssMediaQuery);
+      for (t1 = J.get$iterator$ax(queries1), t2 = J.getInterceptor$ax(queries2); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        for (t4 = t2.get$iterator(queries2); t4.moveNext$0();)
+          $label0$1: {
+            _0_0 = t3.merge$1(t4.get$current(t4));
+            if (B._SingletonCssMediaQueryMergeResult_0 === _0_0)
+              continue;
+            if (B._SingletonCssMediaQueryMergeResult_1 === _0_0)
+              return null;
+            t5 = _0_0 instanceof A.MediaQuerySuccessfulMergeResult;
+            result = t5 ? _0_0 : null;
+            if (t5)
+              queries.push(result.query);
+            break $label0$1;
+          }
+      }
+      return queries;
+    },
+    visitReturnRule$1(node) {
+      return this.visitReturnRule$body$_EvaluateVisitor(node);
+    },
+    visitReturnRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t1, t2;
+      var $async$visitReturnRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.expression;
+              t2 = t1.accept$1($async$self);
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_Value._is(t2) ? t2 : A._Future$value(t2, type$.Value), $async$visitReturnRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate$_withoutSlash$2($async$result, t1);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitReturnRule$1, $async$completer);
+    },
+    visitSilentComment$1(node) {
+      return this.visitSilentComment$body$_EvaluateVisitor(node);
+    },
+    visitSilentComment$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue;
+      var $async$visitSilentComment$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSilentComment$1, $async$completer);
+    },
+    visitStyleRule$1(node) {
+      return this.visitStyleRule$body$_EvaluateVisitor(node);
+    },
+    visitStyleRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, _0_0, selectorText, selectorMap, parsedSelector, nest, t2, _i, _1_0, first, t3, rule, oldAtRootExcludingStyleRule, t4, t5, complex, visitor, t6, t7, t8, t9;
+      var $async$visitStyleRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Style_n, node.span));
+              else if ($async$self._async_evaluate$_inKeyframes && $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") instanceof A.ModifiableCssKeyframeBlock)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Style_k, node.span));
+              t1 = node.selector;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolationWithMap$2$warnForColor(t1, true), $async$visitStyleRule$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              selectorText = _0_0._0;
+              selectorMap = _0_0._1;
+              $async$goto = $async$self._async_evaluate$_inKeyframes ? 4 : 5;
+              break;
+            case 4:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$(new A.CssValue(A.List_List$unmodifiable(A.KeyframeSelectorParser$(selectorText, selectorMap, $async$self._async_evaluate$_logger).parse$0(), type$.String), t1.span, type$.CssValue_List_String), node.span), new A._EvaluateVisitor_visitStyleRule_closure4($async$self, node), node.hasDeclarations, new A._EvaluateVisitor_visitStyleRule_closure5(), type$.ModifiableCssKeyframeBlock, type$.Null), $async$visitStyleRule$1);
+            case 6:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 5:
+              // join
+              parsedSelector = A.SelectorList_SelectorList$parse(selectorText, true, selectorMap, $async$self._async_evaluate$_logger, $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss);
+              t1 = $async$self._async_evaluate$_atRootExcludingStyleRule ? null : $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+              t1 = t1 == null ? null : t1.fromPlainCss;
+              nest = t1 !== true;
+              if (nest) {
+                if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss)
+                  for (t1 = parsedSelector.components, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+                    _1_0 = t1[_i].leadingCombinators;
+                    if (_1_0.length >= 1) {
+                      first = _1_0[0];
+                      t3 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet");
+                      t3 = t3.plainCss;
+                    } else {
+                      first = null;
+                      t3 = false;
+                    }
+                    if (t3)
+                      throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Top_lel, first.span));
+                  }
+                t1 = $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+                t1 = t1 == null ? null : t1.originalSelector;
+                parsedSelector = parsedSelector.nestWithin$3$implicitParent$preserveParentSelectors(t1, !$async$self._async_evaluate$_atRootExcludingStyleRule, $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss);
+              }
+              rule = A.ModifiableCssStyleRule$($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__extensionStore, "_extensionStore").addSelector$2(parsedSelector, $async$self._async_evaluate$_mediaQueries), node.span, $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss, parsedSelector);
+              oldAtRootExcludingStyleRule = $async$self._async_evaluate$_atRootExcludingStyleRule;
+              $async$self._async_evaluate$_atRootExcludingStyleRule = false;
+              t1 = nest ? new A._EvaluateVisitor_visitStyleRule_closure6() : null;
+              $async$goto = 7;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitStyleRule_closure7($async$self, rule, node), node.hasDeclarations, t1, type$.ModifiableCssStyleRule, type$.Null), $async$visitStyleRule$1);
+            case 7:
+              // returning from await.
+              $async$self._async_evaluate$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+              if (!rule.accept$1(B._IsInvisibleVisitor_false_false))
+                for (t1 = parsedSelector.components, t2 = t1.length, t3 = type$.SourceSpan, t4 = type$.String, t5 = rule.children, _i = 0; _i < t2; ++_i) {
+                  complex = t1[_i];
+                  if (!complex.accept$1(B._IsBogusVisitor_true))
+                    continue;
+                  if (complex.accept$1(B.C__IsUselessVisitor)) {
+                    visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+                    complex.accept$1(visitor);
+                    $async$self._async_evaluate$_warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0)) + string$.x22x20is_ix20, A.SpanExtensions_trimRight(complex.span), B.Deprecation_ido);
+                  } else if (complex.leadingCombinators.length !== 0) {
+                    if (!$async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss) {
+                      visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+                      complex.accept$1(visitor);
+                      $async$self._async_evaluate$_warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0)) + string$.x22x20is_ix0a, A.SpanExtensions_trimRight(complex.span), B.Deprecation_ido);
+                    }
+                  } else {
+                    visitor = A._SerializeVisitor$(null, true, null, true, false, null, true);
+                    complex.accept$1(visitor);
+                    t6 = B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0));
+                    t7 = complex.accept$1(B._IsBogusVisitor_false) ? string$.x20It_wi : "";
+                    t8 = A.SpanExtensions_trimRight(complex.span);
+                    if (t5.get$length(0) === 0)
+                      A.throwExpression(A.IterableElementError_noElement());
+                    t9 = J.get$span$z(t5.$index(0, 0));
+                    $async$self._async_evaluate$_warn$3('The selector "' + t6 + string$.x22x20is_o + t7 + string$.x0aThis_, new A.MultiSpan(t8, "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t9, "this is not a style rule" + (t5.every$1(t5, new A._EvaluateVisitor_visitStyleRule_closure8()) ? "\n(try converting to a //-style comment)" : "")], t3, t4), t3, t4)), B.Deprecation_ido);
+                  }
+                }
+              if (($async$self._async_evaluate$_atRootExcludingStyleRule ? null : $async$self._async_evaluate$_styleRuleIgnoringAtRoot) == null) {
+                t1 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").children;
+                t1 = !t1.get$isEmpty(t1);
+              } else
+                t1 = false;
+              if (t1) {
+                t1 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").children;
+                t1.get$last(t1).isGroupEnd = true;
+              }
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitStyleRule$1, $async$completer);
+    },
+    visitSupportsRule$1(node) {
+      return this.visitSupportsRule$body$_EvaluateVisitor(node);
+    },
+    visitSupportsRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, $async$temp1, $async$temp2;
+      var $async$visitSupportsRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Suppor, node.span));
+              t1 = node.condition;
+              $async$temp1 = A;
+              $async$temp2 = A;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate$_visitSupportsCondition$1(t1), $async$visitSupportsRule$1);
+            case 4:
+              // returning from await.
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through($async$temp1.ModifiableCssSupportsRule$(new $async$temp2.CssValue($async$result, t1.get$span(t1), type$.CssValue_String), node.span), new A._EvaluateVisitor_visitSupportsRule_closure1($async$self, node), node.hasDeclarations, new A._EvaluateVisitor_visitSupportsRule_closure2(), type$.ModifiableCssSupportsRule, type$.Null), $async$visitSupportsRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSupportsRule$1, $async$completer);
+    },
+    _async_evaluate$_visitSupportsCondition$1(condition) {
+      return this._visitSupportsCondition$body$_EvaluateVisitor(condition);
+    },
+    _visitSupportsCondition$body$_EvaluateVisitor(condition) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1, _box_0, $async$temp1, $async$temp2;
+      var $async$_async_evaluate$_visitSupportsCondition$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              $async$goto = condition instanceof A.SupportsOperation ? 4 : 5;
+              break;
+            case 4:
+              // then
+              t1 = condition.operator;
+              $async$temp1 = A;
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_parenthesize$2(condition.left, t1), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 6:
+              // returning from await.
+              $async$temp1 = $async$temp1.S($async$result) + " " + t1 + " ";
+              $async$temp2 = A;
+              $async$goto = 7;
+              return A._asyncAwait($async$self._async_evaluate$_parenthesize$2(condition.right, t1), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 7:
+              // returning from await.
+              t1 = $async$temp1 + $async$temp2.S($async$result);
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 5:
+              // join
+              $async$goto = condition instanceof A.SupportsNegation ? 8 : 9;
+              break;
+            case 8:
+              // then
+              $async$temp1 = A;
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate$_parenthesize$1(condition.condition), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 10:
+              // returning from await.
+              t1 = "not " + $async$temp1.S($async$result);
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 9:
+              // join
+              $async$goto = condition instanceof A.SupportsInterpolation ? 11 : 12;
+              break;
+            case 11:
+              // then
+              $async$goto = 13;
+              return A._asyncAwait($async$self._evaluateToCss$2$quote(condition.expression, false), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 13:
+              // returning from await.
+              t1 = $async$result;
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 12:
+              // join
+              _box_0.declaration = null;
+              $async$goto = condition instanceof A.SupportsDeclaration ? 14 : 15;
+              break;
+            case 14:
+              // then
+              _box_0.declaration = condition;
+              $async$goto = 16;
+              return A._asyncAwait($async$self._async_evaluate$_withSupportsDeclaration$1$1(new A._EvaluateVisitor__visitSupportsCondition_closure0(_box_0, $async$self), type$.String), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 16:
+              // returning from await.
+              t1 = $async$result;
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 15:
+              // join
+              $async$goto = condition instanceof A.SupportsFunction ? 17 : 18;
+              break;
+            case 17:
+              // then
+              $async$temp1 = A;
+              $async$goto = 19;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$1(condition.name), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 19:
+              // returning from await.
+              $async$temp1 = $async$temp1.S($async$result) + "(";
+              $async$temp2 = A;
+              $async$goto = 20;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$1(condition.$arguments), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 20:
+              // returning from await.
+              t1 = $async$temp1 + $async$temp2.S($async$result) + ")";
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 18:
+              // join
+              $async$goto = condition instanceof A.SupportsAnything ? 21 : 22;
+              break;
+            case 21:
+              // then
+              $async$temp1 = A;
+              $async$goto = 23;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$1(condition.contents), $async$_async_evaluate$_visitSupportsCondition$1);
+            case 23:
+              // returning from await.
+              t1 = "(" + $async$temp1.S($async$result) + ")";
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 22:
+              // join
+              t1 = A.throwExpression(A.ArgumentError$("Unknown supports condition type " + A.getRuntimeTypeOfDartObject(condition).toString$0(0) + ".", null));
+            case 3:
+              // break $label0$0
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_visitSupportsCondition$1, $async$completer);
+    },
+    _async_evaluate$_withSupportsDeclaration$1$1(callback, $T) {
+      return this._withSupportsDeclaration$body$_EvaluateVisitor(callback, $T, $T);
+    },
+    _withSupportsDeclaration$body$_EvaluateVisitor(callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, t1, oldInSupportsDeclaration;
+      var $async$_async_evaluate$_withSupportsDeclaration$1$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldInSupportsDeclaration = $async$self._async_evaluate$_inSupportsDeclaration;
+              $async$self._async_evaluate$_inSupportsDeclaration = true;
+              $async$handler = 3;
+              t1 = callback.call$0();
+              $async$goto = 6;
+              return A._asyncAwait($T._eval$1("Future<0>")._is(t1) ? t1 : A._Future$value(t1, $T), $async$_async_evaluate$_withSupportsDeclaration$1$1);
+            case 6:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              $async$next = [1];
+              // goto finally
+              $async$goto = 4;
+              break;
+              $async$next.push(5);
+              // goto finally
+              $async$goto = 4;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [2];
+            case 4:
+              // finally
+              $async$handler = 2;
+              $async$self._async_evaluate$_inSupportsDeclaration = oldInSupportsDeclaration;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 5:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_withSupportsDeclaration$1$1, $async$completer);
+    },
+    _async_evaluate$_parenthesize$2(condition, operator) {
+      return this._parenthesize$body$_EvaluateVisitor(condition, operator);
+    },
+    _async_evaluate$_parenthesize$1(condition) {
+      return this._async_evaluate$_parenthesize$2(condition, null);
+    },
+    _parenthesize$body$_EvaluateVisitor(condition, operator) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1, $async$temp1;
+      var $async$_async_evaluate$_parenthesize$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (!(condition instanceof A.SupportsNegation))
+                if (condition instanceof A.SupportsOperation)
+                  t1 = operator == null || operator !== condition.operator;
+                else
+                  t1 = false;
+              else
+                t1 = true;
+              $async$goto = t1 ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$temp1 = A;
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate$_visitSupportsCondition$1(condition), $async$_async_evaluate$_parenthesize$2);
+            case 5:
+              // returning from await.
+              $async$returnValue = "(" + $async$temp1.S($async$result) + ")";
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_visitSupportsCondition$1(condition), $async$_async_evaluate$_parenthesize$2);
+            case 6:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_parenthesize$2, $async$completer);
+    },
+    visitVariableDeclaration$1(node) {
+      return this.visitVariableDeclaration$body$_EvaluateVisitor(node);
+    },
+    visitVariableDeclaration$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t2, value, t1, $async$temp1, $async$temp2, $async$temp3;
+      var $async$visitVariableDeclaration$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              if (node.isGuarded) {
+                if (node.namespace == null && $async$self._async_evaluate$_environment._async_environment$_variables.length === 1) {
+                  t2 = $async$self._async_evaluate$_configuration._configuration$_values;
+                  t2 = t2.get$isEmpty(t2) ? null : t2.remove$1(0, node.name);
+                  t1.override = null;
+                  if (t2 != null) {
+                    t1.override = t2;
+                    t2 = !t2.value.$eq(0, B.C__SassNull);
+                  } else
+                    t2 = false;
+                  if (t2) {
+                    $async$self._async_evaluate$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure2(t1, $async$self, node));
+                    $async$returnValue = null;
+                    // goto return
+                    $async$goto = 1;
+                    break;
+                  }
+                }
+                value = $async$self._async_evaluate$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure3($async$self, node));
+                if (value != null && !value.$eq(0, B.C__SassNull)) {
+                  $async$returnValue = null;
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+              }
+              if (node.isGlobal && !$async$self._async_evaluate$_environment.globalVariableExists$1(node.name)) {
+                t1 = $async$self._async_evaluate$_environment._async_environment$_variables.length === 1 ? string$.As_of_S : string$.As_of_R + A.declarationName(node.span) + ": null` at the stylesheet root.";
+                $async$self._async_evaluate$_warn$3(t1, node.span, B.Deprecation_2nU);
+              }
+              t1 = node.expression;
+              t2 = t1.accept$1($async$self);
+              $async$temp1 = node;
+              $async$temp2 = A;
+              $async$temp3 = node;
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_Value._is(t2) ? t2 : A._Future$value(t2, type$.Value), $async$visitVariableDeclaration$1);
+            case 3:
+              // returning from await.
+              $async$self._async_evaluate$_addExceptionSpan$2($async$temp1, new $async$temp2._EvaluateVisitor_visitVariableDeclaration_closure4($async$self, $async$temp3, $async$self._async_evaluate$_withoutSlash$2($async$result, t1)));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitVariableDeclaration$1, $async$completer);
+    },
+    visitUseRule$1(node) {
+      return this.visitUseRule$body$_EvaluateVisitor(node);
+    },
+    visitUseRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, values, t3, t4, _i, variable, t5, variableNodeWithSpan, t6, t7, configuration, t1, t2, $async$temp1, $async$temp2, $async$temp3;
+      var $async$visitUseRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.configuration;
+              t2 = t1.length;
+              $async$goto = t2 !== 0 ? 3 : 5;
+              break;
+            case 3:
+              // then
+              values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue);
+              t3 = type$._Future_Value, t4 = type$.Future_Value, _i = 0;
+            case 6:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              variable = t1[_i];
+              t5 = variable.expression;
+              variableNodeWithSpan = $async$self._async_evaluate$_expressionNode$1(t5);
+              t6 = variable.name;
+              t5 = t5.accept$1($async$self);
+              if (!t4._is(t5)) {
+                t7 = new A._Future($.Zone__current, t3);
+                t7._state = 8;
+                t7._resultOrListeners = t5;
+                t5 = t7;
+              }
+              $async$temp1 = values;
+              $async$temp2 = t6;
+              $async$temp3 = A;
+              $async$goto = 9;
+              return A._asyncAwait(t5, $async$visitUseRule$1);
+            case 9:
+              // returning from await.
+              $async$temp1.$indexSet(0, $async$temp2, new $async$temp3.ConfiguredValue($async$self._async_evaluate$_withoutSlash$2($async$result, variableNodeWithSpan), variable.span, variableNodeWithSpan));
+            case 7:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+              configuration = new A.ExplicitConfiguration(node, values, null);
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              configuration = B.Configuration_Map_empty_null;
+            case 4:
+              // join
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate$_loadModule$5$configuration(node.url, "@use", node, new A._EvaluateVisitor_visitUseRule_closure0($async$self, node), configuration), $async$visitUseRule$1);
+            case 10:
+              // returning from await.
+              $async$self._async_evaluate$_assertConfigurationIsEmpty$1(configuration);
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitUseRule$1, $async$completer);
+    },
+    visitWarnRule$1(node) {
+      return this.visitWarnRule$body$_EvaluateVisitor(node);
+    },
+    visitWarnRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, value, t1;
+      var $async$visitWarnRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._addExceptionSpanAsync$1$2(node, new A._EvaluateVisitor_visitWarnRule_closure0($async$self, node), type$.Value), $async$visitWarnRule$1);
+            case 3:
+              // returning from await.
+              value = $async$result;
+              t1 = value instanceof A.SassString ? value._string$_text : $async$self._async_evaluate$_serialize$2(value, node.expression);
+              $async$self._async_evaluate$_logger.warn$2$trace(0, t1, $async$self._async_evaluate$_stackTrace$1(node.span));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitWarnRule$1, $async$completer);
+    },
+    visitWhileRule$1(node) {
+      return this._async_evaluate$_environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitWhileRule_closure0(this, node), true, node.hasDeclarations, type$.nullable_Value);
+    },
+    visitBinaryOperationExpression$1(node) {
+      var t1, _this = this;
+      if (_this._async_evaluate$_assertInModule$2(_this._async_evaluate$__stylesheet, "_stylesheet").plainCss) {
+        t1 = node.operator;
+        t1 = t1 !== B.BinaryOperator_wdM && t1 !== B.BinaryOperator_U77;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(_this._async_evaluate$_exception$2("Operators aren't allowed in plain CSS.", node.get$operatorSpan()));
+      return _this._addExceptionSpanAsync$1$2(node, new A._EvaluateVisitor_visitBinaryOperationExpression_closure0(_this, node), type$.Value);
+    },
+    _async_evaluate$_slash$3(left, right, node) {
+      var t1, right0, _1_2, _1_1, _null = null,
+        result = left.dividedBy$1(right),
+        _1_2_isSet = left instanceof A.SassNumber;
+      if (_1_2_isSet) {
+        t1 = type$.SassNumber;
+        t1._as(left);
+        if (right instanceof A.SassNumber) {
+          t1._as(right);
+          t1 = node.allowsSlash && this._async_evaluate$_operandAllowsSlash$1(node.left) && this._async_evaluate$_operandAllowsSlash$1(node.right);
+          right0 = right;
+          _1_2 = right0;
+        } else {
+          right0 = _null;
+          _1_2 = right;
+          t1 = false;
+        }
+        _1_1 = left;
+      } else {
+        right0 = _null;
+        _1_2 = right0;
+        _1_1 = left;
+        left = _1_2;
+        t1 = false;
+      }
+      if (t1)
+        return type$.SassNumber._as(result).withSlash$2(left, right0);
+      if (_1_1 instanceof A.SassNumber)
+        t1 = (_1_2_isSet ? _1_2 : right) instanceof A.SassNumber;
+      else
+        t1 = false;
+      if (t1) {
+        this._async_evaluate$_warn$3(string$.Using__o + A.S(new A._EvaluateVisitor__slash_recommendation0().call$1(node)) + " or " + A.expressionToCalc(node).toString$0(0) + string$.x0a_Morex20, node.get$span(0), B.Deprecation_oJv);
+        return result;
+      }
+      return result;
+    },
+    _async_evaluate$_operandAllowsSlash$1(node) {
+      var t1;
+      if (node instanceof A.FunctionExpression)
+        if (node.namespace == null) {
+          t1 = node.name;
+          t1 = B.Set_yHF81.contains$1(0, t1.toLowerCase()) && this._async_evaluate$_environment.getFunction$1(t1) == null;
+        } else
+          t1 = false;
+      else
+        t1 = true;
+      return t1;
+    },
+    visitValueExpression$1(node) {
+      return this.visitValueExpression$body$_EvaluateVisitor(node);
+    },
+    visitValueExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue;
+      var $async$visitValueExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = node.value;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitValueExpression$1, $async$completer);
+    },
+    visitVariableExpression$1(node) {
+      return this.visitVariableExpression$body$_EvaluateVisitor(node);
+    },
+    visitVariableExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, result;
+      var $async$visitVariableExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              result = $async$self._async_evaluate$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableExpression_closure0($async$self, node));
+              if (result != null) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              throw A.wrapException($async$self._async_evaluate$_exception$2("Undefined variable.", node.span));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitVariableExpression$1, $async$completer);
+    },
+    visitUnaryOperationExpression$1(node) {
+      return this.visitUnaryOperationExpression$body$_EvaluateVisitor(node);
+    },
+    visitUnaryOperationExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, $async$temp1, $async$temp2, $async$temp3;
+      var $async$visitUnaryOperationExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = node;
+              $async$temp2 = A;
+              $async$temp3 = node;
+              $async$goto = 3;
+              return A._asyncAwait(node.operand.accept$1($async$self), $async$visitUnaryOperationExpression$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate$_addExceptionSpan$2($async$temp1, new $async$temp2._EvaluateVisitor_visitUnaryOperationExpression_closure0($async$temp3, $async$result));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitUnaryOperationExpression$1, $async$completer);
+    },
+    visitBooleanExpression$1(node) {
+      return this.visitBooleanExpression$body$_EvaluateVisitor(node);
+    },
+    visitBooleanExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassBoolean),
+        $async$returnValue;
+      var $async$visitBooleanExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = node.value ? B.SassBoolean_true : B.SassBoolean_false;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitBooleanExpression$1, $async$completer);
+    },
+    visitIfExpression$1(node) {
+      return this.visitIfExpression$body$_EvaluateVisitor(node);
+    },
+    visitIfExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, condition, t1, ifTrue, ifFalse, result, _0_0, positional, named;
+      var $async$visitIfExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_evaluateMacroArguments$1(node), $async$visitIfExpression$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              positional = _0_0._0;
+              named = _0_0._1;
+              $async$self._async_evaluate$_verifyArguments$4(J.get$length$asx(positional), named, $.$get$IfExpression_declaration(), node);
+              condition = A.ListExtensions_elementAtOrNull(positional, 0);
+              if (condition == null) {
+                t1 = named.$index(0, "condition");
+                t1.toString;
+                condition = t1;
+              }
+              ifTrue = A.ListExtensions_elementAtOrNull(positional, 1);
+              if (ifTrue == null) {
+                t1 = named.$index(0, "if-true");
+                t1.toString;
+                ifTrue = t1;
+              }
+              ifFalse = A.ListExtensions_elementAtOrNull(positional, 2);
+              if (ifFalse == null) {
+                t1 = named.$index(0, "if-false");
+                t1.toString;
+                ifFalse = t1;
+              }
+              $async$goto = 4;
+              return A._asyncAwait(condition.accept$1($async$self), $async$visitIfExpression$1);
+            case 4:
+              // returning from await.
+              result = $async$result.get$isTruthy() ? ifTrue : ifFalse;
+              t1 = result.accept$1($async$self);
+              $async$goto = 5;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$visitIfExpression$1);
+            case 5:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate$_withoutSlash$2($async$result, $async$self._async_evaluate$_expressionNode$1(result));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitIfExpression$1, $async$completer);
+    },
+    visitNullExpression$1(node) {
+      return this.visitNullExpression$body$_EvaluateVisitor(node);
+    },
+    visitNullExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue;
+      var $async$visitNullExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = B.C__SassNull;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitNullExpression$1, $async$completer);
+    },
+    visitNumberExpression$1(node) {
+      return this.visitNumberExpression$body$_EvaluateVisitor(node);
+    },
+    visitNumberExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassNumber),
+        $async$returnValue;
+      var $async$visitNumberExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = A.SassNumber_SassNumber(node.value, node.unit);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitNumberExpression$1, $async$completer);
+    },
+    visitParenthesizedExpression$1(node) {
+      var _this = this;
+      return _this._async_evaluate$_assertInModule$2(_this._async_evaluate$__stylesheet, "_stylesheet").plainCss ? A.throwExpression(_this._async_evaluate$_exception$2("Parentheses aren't allowed in plain CSS.", node.span)) : node.expression.accept$1(_this);
+    },
+    visitColorExpression$1(node) {
+      return this.visitColorExpression$body$_EvaluateVisitor(node);
+    },
+    visitColorExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassColor),
+        $async$returnValue;
+      var $async$visitColorExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = node.value;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitColorExpression$1, $async$completer);
+    },
+    visitListExpression$1(node) {
+      return this.visitListExpression$body$_EvaluateVisitor(node);
+    },
+    visitListExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassList),
+        $async$returnValue, $async$self = this, $async$temp1;
+      var $async$visitListExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait(A.mapAsync(node.contents, new A._EvaluateVisitor_visitListExpression_closure0($async$self), type$.Expression, type$.Value), $async$visitListExpression$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$temp1.SassList$($async$result, node.separator, node.hasBrackets);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitListExpression$1, $async$completer);
+    },
+    visitMapExpression$1(node) {
+      return this.visitMapExpression$body$_EvaluateVisitor(node);
+    },
+    visitMapExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassMap),
+        $async$returnValue, $async$self = this, t2, t3, _i, t4, key, value, keyValue, valueValue, oldValueSpan, t1, map, keyNodes;
+      var $async$visitMapExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.Value;
+              map = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+              keyNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode);
+              t2 = node.pairs, t3 = t2.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              t4 = t2[_i];
+              key = t4._0;
+              value = t4._1;
+              $async$goto = 6;
+              return A._asyncAwait(key.accept$1($async$self), $async$visitMapExpression$1);
+            case 6:
+              // returning from await.
+              keyValue = $async$result;
+              $async$goto = 7;
+              return A._asyncAwait(value.accept$1($async$self), $async$visitMapExpression$1);
+            case 7:
+              // returning from await.
+              valueValue = $async$result;
+              if (map.containsKey$1(keyValue)) {
+                t1 = keyNodes.$index(0, keyValue);
+                oldValueSpan = t1 == null ? null : t1.get$span(t1);
+                t1 = key.get$span(key);
+                t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+                if (oldValueSpan != null)
+                  t2.$indexSet(0, oldValueSpan, "first key");
+                throw A.wrapException(A.MultiSpanSassRuntimeException$("Duplicate key.", t1, "second key", t2, $async$self._async_evaluate$_stackTrace$1(key.get$span(key)), null));
+              }
+              map.$indexSet(0, keyValue, valueValue);
+              keyNodes.$indexSet(0, keyValue, key);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = new A.SassMap(A.ConstantMap_ConstantMap$from(map, t1, t1));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitMapExpression$1, $async$completer);
+    },
+    visitFunctionExpression$1(node) {
+      return this.visitFunctionExpression$body$_EvaluateVisitor(node);
+    },
+    visitFunctionExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t2, _0_0, t3, t4, oldInFunction, result, t1, $function;
+      var $async$visitFunctionExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              $function = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss ? null : $async$self._async_evaluate$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure2($async$self, node));
+              t1.$function = $function;
+              $async$goto = $function == null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              if (node.namespace != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2("Undefined function.", node.span));
+              t2 = node.name;
+              _0_0 = t2.toLowerCase();
+              if ("min" === _0_0 || "max" === _0_0 || "round" === _0_0 || "abs" === _0_0) {
+                t3 = node.$arguments;
+                t4 = t3.named;
+                t3 = t4.get$isEmpty(t4) && t3.rest == null && B.JSArray_methods.every$1(t3.positional, new A._EvaluateVisitor_visitFunctionExpression_closure3());
+              } else
+                t3 = false;
+              $async$goto = t3 ? 6 : 7;
+              break;
+            case 6:
+              // then
+              $async$goto = 8;
+              return A._asyncAwait($async$self._async_evaluate$_visitCalculation$2$inLegacySassFunction(node, true), $async$visitFunctionExpression$1);
+            case 8:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 7:
+              // join
+              $async$goto = "calc" === _0_0 || "clamp" === _0_0 || "hypot" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "sqrt" === _0_0 || "exp" === _0_0 || "sign" === _0_0 || "mod" === _0_0 || "rem" === _0_0 || "atan2" === _0_0 || "pow" === _0_0 || "log" === _0_0 ? 9 : 10;
+              break;
+            case 9:
+              // then
+              $async$goto = 11;
+              return A._asyncAwait($async$self._async_evaluate$_visitCalculation$1(node), $async$visitFunctionExpression$1);
+            case 11:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 10:
+              // join
+              $function = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__stylesheet, "_stylesheet").plainCss ? null : $async$self._async_evaluate$_builtInFunctions.$index(0, t2);
+              t2 = t1.$function = $function == null ? new A.PlainCssCallable(node.originalName) : $function;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              t2 = $function;
+            case 4:
+              // join
+              if (B.JSString_methods.startsWith$1(node.originalName, "--") && t2 instanceof A.UserDefinedCallable && !B.JSString_methods.startsWith$1(t2.declaration.originalName, "--"))
+                $async$self._async_evaluate$_warn$3(string$.Sass__ff, node.get$nameSpan(), B.Deprecation_HJ0);
+              oldInFunction = $async$self._async_evaluate$_inFunction;
+              $async$self._async_evaluate$_inFunction = true;
+              $async$goto = 12;
+              return A._asyncAwait($async$self._async_evaluate$_addErrorSpan$1$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure4(t1, $async$self, node), type$.Value), $async$visitFunctionExpression$1);
+            case 12:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_inFunction = oldInFunction;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitFunctionExpression$1, $async$completer);
+    },
+    _async_evaluate$_visitCalculation$2$inLegacySassFunction(node, inLegacySassFunction) {
+      return this._visitCalculation$body$_EvaluateVisitor(node, inLegacySassFunction);
+    },
+    _async_evaluate$_visitCalculation$1(node) {
+      return this._async_evaluate$_visitCalculation$2$inLegacySassFunction(node, false);
+    },
+    _visitCalculation$body$_EvaluateVisitor(node, inLegacySassFunction) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$next = [], $async$self = this, $arguments, oldCallableNode, t1, _0_0, error, stackTrace, t4, _i, exception, t2, t3, $async$temp1;
+      var $async$_async_evaluate$_visitCalculation$2$inLegacySassFunction = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t2 = node.$arguments;
+              t3 = t2.named;
+              if (t3.get$isNotEmpty(t3))
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Keywor, node.span));
+              else if (t2.rest != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Rest_a, node.span));
+              $async$self._async_evaluate$_checkCalculationArguments$1(node);
+              t3 = A._setArrayType([], type$.JSArray_Object);
+              t2 = t2.positional, t4 = t2.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t4)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$temp1 = t3;
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction), $async$_async_evaluate$_visitCalculation$2$inLegacySassFunction);
+            case 6:
+              // returning from await.
+              $async$temp1.push($async$result);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $arguments = t3;
+              if ($async$self._async_evaluate$_inSupportsDeclaration) {
+                $async$returnValue = new A.SassCalculation(node.name, A.List_List$unmodifiable($arguments, type$.Object));
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              oldCallableNode = $async$self._async_evaluate$_callableNode;
+              $async$self._async_evaluate$_callableNode = node;
+              try {
+                t1 = null;
+                t3 = node.name;
+                _0_0 = t3.toLowerCase();
+                $label0$0: {
+                  if ("calc" === _0_0) {
+                    t1 = A.SassCalculation_calc(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("sqrt" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("sqrt", J.$index$asx($arguments, 0), A.number0__sqrt$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("sin" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("sin", J.$index$asx($arguments, 0), A.number0__sin$closure(), false);
+                    break $label0$0;
+                  }
+                  if ("cos" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("cos", J.$index$asx($arguments, 0), A.number0__cos$closure(), false);
+                    break $label0$0;
+                  }
+                  if ("tan" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("tan", J.$index$asx($arguments, 0), A.number0__tan$closure(), false);
+                    break $label0$0;
+                  }
+                  if ("asin" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("asin", J.$index$asx($arguments, 0), A.number0__asin$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("acos" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("acos", J.$index$asx($arguments, 0), A.number0__acos$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("atan" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument("atan", J.$index$asx($arguments, 0), A.number0__atan$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("abs" === _0_0) {
+                    t1 = A.SassCalculation_abs(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("exp" === _0_0) {
+                    t1 = A.SassCalculation_exp(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("sign" === _0_0) {
+                    t1 = A.SassCalculation_sign(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("min" === _0_0) {
+                    t1 = A.SassCalculation_min($arguments);
+                    break $label0$0;
+                  }
+                  if ("max" === _0_0) {
+                    t1 = A.SassCalculation_max($arguments);
+                    break $label0$0;
+                  }
+                  if ("hypot" === _0_0) {
+                    t1 = A.SassCalculation_hypot($arguments);
+                    break $label0$0;
+                  }
+                  if ("pow" === _0_0) {
+                    t1 = A.SassCalculation_pow(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("atan2" === _0_0) {
+                    t1 = A.SassCalculation_atan2(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("log" === _0_0) {
+                    t1 = A.SassCalculation_log(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("mod" === _0_0) {
+                    t1 = A.SassCalculation_mod(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("rem" === _0_0) {
+                    t1 = A.SassCalculation_rem(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("round" === _0_0) {
+                    t1 = A.SassCalculation_round(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+                    break $label0$0;
+                  }
+                  if ("clamp" === _0_0) {
+                    t1 = A.SassCalculation_clamp(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+                    break $label0$0;
+                  }
+                  t3 = A.UnsupportedError$('Unknown calculation name "' + t3 + '".');
+                  t1 = A.throwExpression(t3);
+                }
+                t1 = t1;
+                $async$returnValue = t1;
+                // goto return
+                $async$goto = 1;
+                break;
+              } catch (exception) {
+                t1 = A.unwrapException(exception);
+                if (t1 instanceof A.SassScriptException) {
+                  error = t1;
+                  stackTrace = A.getTraceFromException(exception);
+                  if (B.JSString_methods.contains$1(error.message, "compatible"))
+                    $async$self._async_evaluate$_verifyCompatibleNumbers$2($arguments, t2);
+                  A.throwWithTrace($async$self._async_evaluate$_exception$2(error.message, node.span), error, stackTrace);
+                } else
+                  throw exception;
+              } finally {
+                $async$self._async_evaluate$_callableNode = oldCallableNode;
+              }
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_visitCalculation$2$inLegacySassFunction, $async$completer);
+    },
+    _async_evaluate$_checkCalculationArguments$1(node) {
+      var t1, _0_0,
+        check = new A._EvaluateVisitor__checkCalculationArguments_check0(this, node);
+      $label0$0: {
+        t1 = node.name;
+        _0_0 = t1.toLowerCase();
+        if ("calc" === _0_0 || "sqrt" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "abs" === _0_0 || "exp" === _0_0 || "sign" === _0_0) {
+          check.call$1(1);
+          break $label0$0;
+        }
+        if ("min" === _0_0 || "max" === _0_0 || "hypot" === _0_0) {
+          check.call$0();
+          break $label0$0;
+        }
+        if ("pow" === _0_0 || "atan2" === _0_0 || "log" === _0_0 || "mod" === _0_0 || "rem" === _0_0) {
+          check.call$1(2);
+          break $label0$0;
+        }
+        if ("round" === _0_0 || "clamp" === _0_0) {
+          check.call$1(3);
+          break $label0$0;
+        }
+        throw A.wrapException(A.UnsupportedError$('Unknown calculation name "' + t1 + '".'));
+      }
+    },
+    _async_evaluate$_verifyCompatibleNumbers$2(args, nodesWithSpans) {
+      var i, t1, _0_0, arg, number1, j, number2;
+      for (i = 0; t1 = args.length, i < t1; ++i) {
+        _0_0 = args[i];
+        if (_0_0 instanceof A.SassNumber) {
+          t1 = _0_0.get$hasComplexUnits();
+          arg = _0_0;
+        } else {
+          arg = null;
+          t1 = false;
+        }
+        if (t1)
+          throw A.wrapException(this._async_evaluate$_exception$2("Number " + A.S(arg) + " isn't compatible with CSS calculations.", J.get$span$z(nodesWithSpans[i])));
+      }
+      for (i = 0; i < t1 - 1; ++i) {
+        number1 = args[i];
+        if (!(number1 instanceof A.SassNumber))
+          continue;
+        for (j = i + 1; t1 = args.length, j < t1; ++j) {
+          number2 = args[j];
+          if (!(number2 instanceof A.SassNumber))
+            continue;
+          if (number1.hasPossiblyCompatibleUnits$1(number2))
+            continue;
+          throw A.wrapException(A.MultiSpanSassRuntimeException$(number1.toString$0(0) + " and " + number2.toString$0(0) + " are incompatible.", J.get$span$z(nodesWithSpans[i]), number1.toString$0(0), A.LinkedHashMap_LinkedHashMap$_literal([J.get$span$z(nodesWithSpans[j]), number2.toString$0(0)], type$.FileSpan, type$.String), this._async_evaluate$_stackTrace$1(J.get$span$z(nodesWithSpans[i])), null));
+        }
+      }
+    },
+    _async_evaluate$_visitCalculationExpression$2$inLegacySassFunction(node, inLegacySassFunction) {
+      return this._visitCalculationExpression$body$_EvaluateVisitor(node, inLegacySassFunction);
+    },
+    _visitCalculationExpression$body$_EvaluateVisitor(node, inLegacySassFunction) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Object),
+        $async$returnValue, $async$self = this, result, t2, _0_0, _1_0, t3, _i, i, _box_0, t1, inner, $async$temp1;
+      var $async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              t1 = node instanceof A.ParenthesizedExpression;
+              inner = t1 ? node.expression : null;
+              $async$goto = t1 ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate$_visitCalculationExpression$2$inLegacySassFunction(inner, inLegacySassFunction), $async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction);
+            case 5:
+              // returning from await.
+              result = $async$result;
+              $async$returnValue = result instanceof A.SassString ? new A.SassString("(" + result._string$_text + ")", false) : result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$goto = node instanceof A.StringExpression && node.accept$1(new A._IsCalculationSafeVisitor()) ? 6 : 7;
+              break;
+            case 6:
+              // then
+              t1 = node.text;
+              t2 = t1.get$asPlain();
+              _0_0 = t2 == null ? null : t2.toLowerCase();
+              if ("pi" === _0_0) {
+                t1 = A.SassNumber_SassNumber(3.141592653589793, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("e" === _0_0) {
+                t1 = A.SassNumber_SassNumber(2.718281828459045, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("infinity" === _0_0) {
+                t1 = A.SassNumber_SassNumber(1 / 0, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("-infinity" === _0_0) {
+                t1 = A.SassNumber_SassNumber(-1 / 0, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("nan" === _0_0) {
+                t1 = A.SassNumber_SassNumber(0 / 0, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              $async$temp1 = A;
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$1(t1), $async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction);
+            case 9:
+              // returning from await.
+              t1 = new $async$temp1.SassString($async$result, false);
+              // goto break $label0$0
+              $async$goto = 8;
+              break;
+            case 8:
+              // break $label0$0
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 7:
+              // join
+              _box_0.right = _box_0.left = _box_0.operator = null;
+              t1 = node instanceof A.BinaryOperationExpression;
+              if (t1) {
+                _box_0.operator = node.operator;
+                _box_0.left = node.left;
+                _box_0.right = node.right;
+              }
+              $async$goto = t1 ? 10 : 11;
+              break;
+            case 10:
+              // then
+              $async$self._async_evaluate$_checkWhitespaceAroundCalculationOperator$1(node);
+              $async$goto = 12;
+              return A._asyncAwait($async$self._addExceptionSpanAsync$1$2(node, new A._EvaluateVisitor__visitCalculationExpression_closure0(_box_0, $async$self, node, inLegacySassFunction), type$.Object), $async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction);
+            case 12:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 11:
+              // join
+              $async$goto = node instanceof A.NumberExpression || node instanceof A.VariableExpression || node instanceof A.FunctionExpression || node instanceof A.IfExpression ? 13 : 14;
+              break;
+            case 13:
+              // then
+              $async$goto = 15;
+              return A._asyncAwait(node.accept$1($async$self), $async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction);
+            case 15:
+              // returning from await.
+              _1_0 = $async$result;
+              $label1$1: {
+                if (_1_0 instanceof A.SassNumber) {
+                  t1 = _1_0;
+                  break $label1$1;
+                }
+                if (_1_0 instanceof A.SassCalculation) {
+                  t1 = _1_0;
+                  break $label1$1;
+                }
+                if (_1_0 instanceof A.SassString) {
+                  t1 = !_1_0._hasQuotes;
+                  result = _1_0;
+                } else {
+                  result = null;
+                  t1 = false;
+                }
+                if (t1) {
+                  t1 = result;
+                  break $label1$1;
+                }
+                t1 = A.throwExpression($async$self._async_evaluate$_exception$2("Value " + _1_0.toString$0(0) + " can't be used in a calculation.", node.get$span(node)));
+              }
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 14:
+              // join
+              $async$goto = node instanceof A.ListExpression && !node.hasBrackets && B.ListSeparator_nbm === node.separator && node.contents.length >= 2 ? 16 : 17;
+              break;
+            case 16:
+              // then
+              t1 = A._setArrayType([], type$.JSArray_Object);
+              t2 = node.contents, t3 = t2.length, _i = 0;
+            case 18:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 20;
+                break;
+              }
+              $async$temp1 = t1;
+              $async$goto = 21;
+              return A._asyncAwait($async$self._async_evaluate$_visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction), $async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction);
+            case 21:
+              // returning from await.
+              $async$temp1.push($async$result);
+            case 19:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 18;
+              break;
+            case 20:
+              // after for
+              $async$self._async_evaluate$_checkAdjacentCalculationValues$2(t1, node);
+              for (i = 0; i < t1.length; ++i) {
+                t3 = t1[i];
+                if (t3 instanceof A.CalculationOperation && t2[i] instanceof A.ParenthesizedExpression)
+                  t1[i] = new A.SassString("(" + A.S(t3) + ")", false);
+              }
+              $async$returnValue = new A.SassString(B.JSArray_methods.join$1(t1, " "), false);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 17:
+              // join
+              throw A.wrapException($async$self._async_evaluate$_exception$2(string$.This_e, node.get$span(node)));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_visitCalculationExpression$2$inLegacySassFunction, $async$completer);
+    },
+    _async_evaluate$_checkWhitespaceAroundCalculationOperator$1(node) {
+      var t2, t3, t4, textBetweenOperands, first, last,
+        t1 = node.operator;
+      if (t1 !== B.BinaryOperator_u15 && t1 !== B.BinaryOperator_SjO)
+        return;
+      t1 = node.left;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t3 = node.right;
+      t4 = t3.get$span(t3);
+      if (t2 !== t4.get$file(t4))
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$end(t2);
+      t4 = t3.get$span(t3);
+      if (t2.offset >= t4.get$start(t4).offset)
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t1 = t1.get$span(t1);
+      t1 = t1.get$end(t1);
+      t3 = t3.get$span(t3);
+      textBetweenOperands = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2._decodedChars, t1.offset, t3.get$start(t3).offset), 0, null);
+      first = textBetweenOperands.charCodeAt(0);
+      last = textBetweenOperands.charCodeAt(textBetweenOperands.length - 1);
+      if (first === 32 || first === 9 || first === 10 || first === 13 || first === 12 || first === 47)
+        t1 = !(last === 32 || last === 9 || last === 10 || last === 13 || last === 12 || last === 47);
+      else
+        t1 = true;
+      if (t1)
+        throw A.wrapException(this._async_evaluate$_exception$2(string$.x22x2b__an, node.get$operatorSpan()));
+    },
+    _async_evaluate$_binaryOperatorToCalculationOperator$2(operator, node) {
+      var t1;
+      $label0$0: {
+        if (B.BinaryOperator_u15 === operator) {
+          t1 = B.CalculationOperator_g2q;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_SjO === operator) {
+          t1 = B.CalculationOperator_CxF;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_2No === operator) {
+          t1 = B.CalculationOperator_171;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_U77 === operator) {
+          t1 = B.CalculationOperator_Qf1;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(this._async_evaluate$_exception$2(string$.This_o, node.get$operatorSpan()));
+      }
+      return t1;
+    },
+    _async_evaluate$_checkAdjacentCalculationValues$2(elements, node) {
+      var t1, i, t2, previous, current, previousNode, currentNode, _0_2;
+      for (t1 = elements.length, i = 1; i < t1; ++i) {
+        t2 = i - 1;
+        previous = elements[t2];
+        current = elements[i];
+        if (previous instanceof A.SassString || current instanceof A.SassString)
+          continue;
+        t1 = node.contents;
+        previousNode = t1[t2];
+        currentNode = t1[i];
+        if (currentNode instanceof A.UnaryOperationExpression) {
+          _0_2 = currentNode.operator;
+          if (B.UnaryOperator_AiQ !== _0_2)
+            t1 = B.UnaryOperator_cLp === _0_2;
+          else
+            t1 = true;
+        } else
+          t1 = false;
+        if (!t1)
+          t1 = currentNode instanceof A.NumberExpression && currentNode.value < 0;
+        else
+          t1 = true;
+        if (t1)
+          throw A.wrapException(this._async_evaluate$_exception$2(string$.x22x2b__an, A.FileSpanExtension_subspan(currentNode.get$span(currentNode), 0, 1)));
+        else
+          throw A.wrapException(this._async_evaluate$_exception$2("Missing math operator.", previousNode.get$span(previousNode).expand$1(0, currentNode.get$span(currentNode))));
+      }
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return this.visitInterpolatedFunctionExpression$body$_EvaluateVisitor(node);
+    },
+    visitInterpolatedFunctionExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, result, t1, oldInFunction;
+      var $async$visitInterpolatedFunctionExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$1(node.name), $async$visitInterpolatedFunctionExpression$1);
+            case 3:
+              // returning from await.
+              t1 = $async$result;
+              oldInFunction = $async$self._async_evaluate$_inFunction;
+              $async$self._async_evaluate$_inFunction = true;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate$_addErrorSpan$1$2(node, new A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure0($async$self, node, new A.PlainCssCallable(t1)), type$.Value), $async$visitInterpolatedFunctionExpression$1);
+            case 4:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_inFunction = oldInFunction;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitInterpolatedFunctionExpression$1, $async$completer);
+    },
+    _async_evaluate$_runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, run, $V) {
+      return this._runUserDefinedCallable$body$_EvaluateVisitor($arguments, callable, nodeWithSpan, run, $V, $V);
+    },
+    _runUserDefinedCallable$body$_EvaluateVisitor($arguments, callable, nodeWithSpan, run, $V, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, oldCallable, result, evaluated, $name;
+      var $async$_async_evaluate$_runUserDefinedCallable$1$4 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_evaluateArguments$1($arguments), $async$_async_evaluate$_runUserDefinedCallable$1$4);
+            case 3:
+              // returning from await.
+              evaluated = $async$result;
+              $name = callable.declaration.name;
+              if ($name !== "@content")
+                $name += "()";
+              oldCallable = $async$self._async_evaluate$_currentCallable;
+              $async$self._async_evaluate$_currentCallable = callable;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate$_withStackFrame$1$3($name, nodeWithSpan, new A._EvaluateVisitor__runUserDefinedCallable_closure0($async$self, callable, evaluated, nodeWithSpan, run, $V), $V), $async$_async_evaluate$_runUserDefinedCallable$1$4);
+            case 4:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_currentCallable = oldCallable;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_runUserDefinedCallable$1$4, $async$completer);
+    },
+    _async_evaluate$_runFunctionCallable$3($arguments, callable, nodeWithSpan) {
+      return this._runFunctionCallable$body$_EvaluateVisitor($arguments, callable, nodeWithSpan);
+    },
+    _runFunctionCallable$body$_EvaluateVisitor($arguments, callable, nodeWithSpan) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, buffer, first, argument, restArg, rest, error, t1, t2, _i, t3, t4, exception, $async$exception, $async$temp1;
+      var $async$_async_evaluate$_runFunctionCallable$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = type$.AsyncBuiltInCallable._is(callable) ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate$_runBuiltInCallable$3($arguments, callable, nodeWithSpan), $async$_async_evaluate$_runFunctionCallable$3);
+            case 6:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate$_withoutSlash$2($async$result, nodeWithSpan);
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$goto = type$.UserDefinedCallable_AsyncEnvironment._is(callable) ? 7 : 9;
+              break;
+            case 7:
+              // then
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate$_runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, new A._EvaluateVisitor__runFunctionCallable_closure0($async$self, callable), type$.Value), $async$_async_evaluate$_runFunctionCallable$3);
+            case 10:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 8;
+              break;
+            case 9:
+              // else
+              $async$goto = callable instanceof A.PlainCssCallable ? 11 : 13;
+              break;
+            case 11:
+              // then
+              t1 = $arguments.named;
+              if (t1.get$isNotEmpty(t1) || $arguments.keywordRest != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Plain_, nodeWithSpan.get$span(nodeWithSpan)));
+              buffer = new A.StringBuffer(callable.name + "(");
+              $async$handler = 15;
+              first = true;
+              t1 = $arguments.positional, t2 = t1.length, _i = 0;
+            case 18:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 20;
+                break;
+              }
+              argument = t1[_i];
+              if (first)
+                first = false;
+              else
+                buffer._contents += ", ";
+              t3 = buffer;
+              $async$temp1 = A;
+              $async$goto = 21;
+              return A._asyncAwait($async$self._evaluateToCss$1(argument), $async$_async_evaluate$_runFunctionCallable$3);
+            case 21:
+              // returning from await.
+              t4 = $async$temp1.S($async$result);
+              t3._contents += t4;
+            case 19:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 18;
+              break;
+            case 20:
+              // after for
+              restArg = $arguments.rest;
+              $async$goto = restArg != null ? 22 : 23;
+              break;
+            case 22:
+              // then
+              $async$goto = 24;
+              return A._asyncAwait(restArg.accept$1($async$self), $async$_async_evaluate$_runFunctionCallable$3);
+            case 24:
+              // returning from await.
+              rest = $async$result;
+              if (!first)
+                buffer._contents += ", ";
+              t1 = buffer;
+              t2 = $async$self._async_evaluate$_serialize$2(rest, restArg);
+              t1._contents += t2;
+            case 23:
+              // join
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 17;
+              break;
+            case 15:
+              // catch
+              $async$handler = 14;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (type$.SassRuntimeException._is(t1)) {
+                error = t1;
+                if (!B.JSString_methods.endsWith$1(error._span_exception$_message, "isn't a valid CSS value."))
+                  throw $async$exception;
+                throw A.wrapException(A.MultiSpanSassRuntimeException$(error._span_exception$_message, J.get$span$z(error), "value", A.LinkedHashMap_LinkedHashMap$_literal([nodeWithSpan.get$span(nodeWithSpan), "unknown function treated as plain CSS"], type$.FileSpan, type$.String), J.get$trace$z(error), null));
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 17;
+              break;
+            case 14:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 17:
+              // after finally
+              t1 = buffer;
+              t2 = A.Primitives_stringFromCharCode(41);
+              t1._contents += t2;
+              t2 = buffer._contents;
+              $async$returnValue = new A.SassString(t2.charCodeAt(0) == 0 ? t2 : t2, false);
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 12;
+              break;
+            case 13:
+              // else
+              throw A.wrapException(A.ArgumentError$("Unknown callable type " + J.get$runtimeType$(callable).toString$0(0) + ".", null));
+            case 12:
+              // join
+            case 8:
+              // join
+            case 4:
+              // join
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_runFunctionCallable$3, $async$completer);
+    },
+    _async_evaluate$_runBuiltInCallable$3($arguments, callable, nodeWithSpan) {
+      return this._runBuiltInCallable$body$_EvaluateVisitor($arguments, callable, nodeWithSpan);
+    },
+    _runBuiltInCallable$body$_EvaluateVisitor($arguments, callable, nodeWithSpan) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, result, error, stackTrace, message, namedSet, _0_0, declaredArguments, i, t1, t2, t3, argument, t4, t5, t6, t7, rest, argumentList, exception, message0, _box_0, evaluated, oldCallableNode, $async$exception;
+      var $async$_async_evaluate$_runBuiltInCallable$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_evaluateArguments$1($arguments), $async$_async_evaluate$_runBuiltInCallable$3);
+            case 3:
+              // returning from await.
+              evaluated = $async$result;
+              oldCallableNode = $async$self._async_evaluate$_callableNode;
+              $async$self._async_evaluate$_callableNode = nodeWithSpan;
+              namedSet = new A.MapKeySet(evaluated._values[0], type$.MapKeySet_String);
+              _box_0.callback = _box_0.overload = null;
+              _0_0 = callable.callbackFor$2(J.get$length$asx(evaluated._values[2]), namedSet);
+              _box_0.overload = _0_0._0;
+              _box_0.callback = _0_0._1;
+              $async$self._async_evaluate$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure2(_box_0, evaluated, namedSet));
+              declaredArguments = _box_0.overload.$arguments;
+              i = J.get$length$asx(evaluated._values[2]), t1 = declaredArguments.length, t2 = type$._Future_Value, t3 = type$.Future_Value;
+            case 4:
+              // for condition
+              if (!(i < t1)) {
+                // goto after for
+                $async$goto = 6;
+                break;
+              }
+              argument = declaredArguments[i];
+              t4 = evaluated._values[2];
+              t5 = evaluated._values[0].remove$1(0, argument.name);
+              $async$goto = t5 == null ? 7 : 8;
+              break;
+            case 7:
+              // then
+              t5 = argument.defaultValue;
+              t6 = t5.accept$1($async$self);
+              if (!t3._is(t6)) {
+                t7 = new A._Future($.Zone__current, t2);
+                t7._state = 8;
+                t7._resultOrListeners = t6;
+                t6 = t7;
+              }
+              $async$goto = 9;
+              return A._asyncAwait(t6, $async$_async_evaluate$_runBuiltInCallable$3);
+            case 9:
+              // returning from await.
+              t5 = $async$self._async_evaluate$_withoutSlash$2($async$result, t5);
+            case 8:
+              // join
+              J.add$1$ax(t4, t5);
+            case 5:
+              // for update
+              ++i;
+              // goto for condition
+              $async$goto = 4;
+              break;
+            case 6:
+              // after for
+              if (_box_0.overload.restArgument != null) {
+                if (J.get$length$asx(evaluated._values[2]) > t1) {
+                  rest = J.sublist$1$ax(evaluated._values[2], t1);
+                  J.removeRange$2$ax(evaluated._values[2], t1, J.get$length$asx(evaluated._values[2]));
+                } else
+                  rest = B.List_empty8;
+                t1 = evaluated._values[0];
+                argumentList = A.SassArgumentList$(rest, t1, evaluated._values[4] === B.ListSeparator_undecided_null_undecided ? B.ListSeparator_ECn : evaluated._values[4]);
+                J.add$1$ax(evaluated._values[2], argumentList);
+              } else
+                argumentList = null;
+              result = null;
+              $async$handler = 11;
+              $async$goto = 14;
+              return A._asyncAwait($async$self._addExceptionSpanAsync$1$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure3(_box_0, evaluated), type$.Value), $async$_async_evaluate$_runBuiltInCallable$3);
+            case 14:
+              // returning from await.
+              result = $async$result;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 13;
+              break;
+            case 11:
+              // catch
+              $async$handler = 10;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException)
+                throw $async$exception;
+              else {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                message = null;
+                try {
+                  message = A._asString(J.get$message$x(error));
+                } catch (exception) {
+                  message0 = J.toString$0$(error);
+                  message = message0;
+                }
+                A.throwWithTrace($async$self._async_evaluate$_exception$2(message, nodeWithSpan.get$span(nodeWithSpan)), error, stackTrace);
+              }
+              // goto after finally
+              $async$goto = 13;
+              break;
+            case 10:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 13:
+              // after finally
+              $async$self._async_evaluate$_callableNode = oldCallableNode;
+              if (argumentList == null) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t1 = evaluated._values[0];
+              if (t1.get$isEmpty(t1)) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (argumentList._wereKeywordsAccessed) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t1 = evaluated._values[0];
+              t1 = A.pluralize("argument", J.get$length$asx(t1.get$keys(t1)), null);
+              t2 = evaluated._values[0];
+              throw A.wrapException(A.MultiSpanSassRuntimeException$("No " + t1 + " named " + A.toSentence(J.map$1$1$ax(t2.get$keys(t2), new A._EvaluateVisitor__runBuiltInCallable_closure4(), type$.Object), "or") + ".", nodeWithSpan.get$span(nodeWithSpan), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([_box_0.overload.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), $async$self._async_evaluate$_stackTrace$1(nodeWithSpan.get$span(nodeWithSpan)), null));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_runBuiltInCallable$3, $async$completer);
+    },
+    _async_evaluate$_evaluateArguments$1($arguments) {
+      return this._evaluateArguments$body$_EvaluateVisitor($arguments);
+    },
+    _evaluateArguments$body$_EvaluateVisitor($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_5_Map_String_Value_named_and_Map_String_AstNode_namedNodes_and_List_Value_positional_and_List_AstNode_positionalNodes_and_ListSeparator_separator),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, _i, expression, nodeForSpan, t5, t6, named, namedNodes, $name, value, t7, restArgs, rest, restNodeForSpan, separator, keywordRestArgs, keywordRest, keywordRestNodeForSpan, positional, positionalNodes, $async$temp1, $async$temp2;
+      var $async$_async_evaluate$_evaluateArguments$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              positional = A._setArrayType([], type$.JSArray_Value);
+              positionalNodes = A._setArrayType([], type$.JSArray_AstNode);
+              t1 = $arguments.positional, t2 = t1.length, t3 = type$._Future_Value, t4 = type$.Future_Value, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              expression = t1[_i];
+              nodeForSpan = $async$self._async_evaluate$_expressionNode$1(expression);
+              t5 = expression.accept$1($async$self);
+              if (!t4._is(t5)) {
+                t6 = new A._Future($.Zone__current, t3);
+                t6._state = 8;
+                t6._resultOrListeners = t5;
+                t5 = t6;
+              }
+              $async$temp1 = positional;
+              $async$goto = 6;
+              return A._asyncAwait(t5, $async$_async_evaluate$_evaluateArguments$1);
+            case 6:
+              // returning from await.
+              $async$temp1.push($async$self._async_evaluate$_withoutSlash$2($async$result, nodeForSpan));
+              positionalNodes.push(nodeForSpan);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              t1 = type$.String;
+              named = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value);
+              t2 = type$.AstNode;
+              namedNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+              t5 = A.MapExtensions_get_pairs($arguments.named, t1, type$.Expression), t5 = t5.get$iterator(t5);
+            case 7:
+              // for condition
+              if (!t5.moveNext$0()) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              t6 = t5.get$current(t5);
+              $name = t6._0;
+              value = t6._1;
+              nodeForSpan = $async$self._async_evaluate$_expressionNode$1(value);
+              t6 = value.accept$1($async$self);
+              if (!t4._is(t6)) {
+                t7 = new A._Future($.Zone__current, t3);
+                t7._state = 8;
+                t7._resultOrListeners = t6;
+                t6 = t7;
+              }
+              $async$temp1 = named;
+              $async$temp2 = $name;
+              $async$goto = 9;
+              return A._asyncAwait(t6, $async$_async_evaluate$_evaluateArguments$1);
+            case 9:
+              // returning from await.
+              $async$temp1.$indexSet(0, $async$temp2, $async$self._async_evaluate$_withoutSlash$2($async$result, nodeForSpan));
+              namedNodes.$indexSet(0, $name, nodeForSpan);
+              // goto for condition
+              $async$goto = 7;
+              break;
+            case 8:
+              // after for
+              restArgs = $arguments.rest;
+              if (restArgs == null) {
+                $async$returnValue = new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, B.ListSeparator_undecided_null_undecided]);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 10;
+              return A._asyncAwait(restArgs.accept$1($async$self), $async$_async_evaluate$_evaluateArguments$1);
+            case 10:
+              // returning from await.
+              rest = $async$result;
+              restNodeForSpan = $async$self._async_evaluate$_expressionNode$1(restArgs);
+              if (rest instanceof A.SassMap) {
+                $async$self._async_evaluate$_addRestMap$4(named, rest, restArgs, new A._EvaluateVisitor__evaluateArguments_closure3());
+                t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+                for (t4 = rest._map$_contents, t4 = J.get$iterator$ax(t4.get$keys(t4)), t5 = type$.SassString; t4.moveNext$0();)
+                  t3.$indexSet(0, t5._as(t4.get$current(t4))._string$_text, restNodeForSpan);
+                namedNodes.addAll$1(0, t3);
+                separator = B.ListSeparator_undecided_null_undecided;
+              } else if (rest instanceof A.SassList) {
+                t3 = rest._list$_contents;
+                B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t3, new A._EvaluateVisitor__evaluateArguments_closure4($async$self, restNodeForSpan), A._arrayInstanceType(t3)._eval$1("MappedListIterable<1,Value>")));
+                B.JSArray_methods.addAll$1(positionalNodes, A.List_List$filled(t3.length, restNodeForSpan, false, t2));
+                separator = rest._separator;
+                if (rest instanceof A.SassArgumentList) {
+                  rest._wereKeywordsAccessed = true;
+                  rest._keywords.forEach$1(0, new A._EvaluateVisitor__evaluateArguments_closure5($async$self, named, restNodeForSpan, namedNodes));
+                }
+              } else {
+                positional.push($async$self._async_evaluate$_withoutSlash$2(rest, restNodeForSpan));
+                positionalNodes.push(restNodeForSpan);
+                separator = B.ListSeparator_undecided_null_undecided;
+              }
+              keywordRestArgs = $arguments.keywordRest;
+              if (keywordRestArgs == null) {
+                $async$returnValue = new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 11;
+              return A._asyncAwait(keywordRestArgs.accept$1($async$self), $async$_async_evaluate$_evaluateArguments$1);
+            case 11:
+              // returning from await.
+              keywordRest = $async$result;
+              keywordRestNodeForSpan = $async$self._async_evaluate$_expressionNode$1(keywordRestArgs);
+              if (keywordRest instanceof A.SassMap) {
+                $async$self._async_evaluate$_addRestMap$4(named, keywordRest, keywordRestArgs, new A._EvaluateVisitor__evaluateArguments_closure6());
+                t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+                for (t2 = keywordRest._map$_contents, t2 = J.get$iterator$ax(t2.get$keys(t2)), t3 = type$.SassString; t2.moveNext$0();)
+                  t1.$indexSet(0, t3._as(t2.get$current(t2))._string$_text, keywordRestNodeForSpan);
+                namedNodes.addAll$1(0, t1);
+                $async$returnValue = new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs.get$span(keywordRestArgs)));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_evaluateArguments$1, $async$completer);
+    },
+    _async_evaluate$_evaluateMacroArguments$1(invocation) {
+      return this._evaluateMacroArguments$body$_EvaluateVisitor(invocation);
+    },
+    _evaluateMacroArguments$body$_EvaluateVisitor(invocation) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_List_Expression_and_Map_String_Expression),
+        $async$returnValue, $async$self = this, t2, positional, named, rest, restNodeForSpan, keywordRestArgs_, keywordRest, keywordRestNodeForSpan, t1, restArgs_;
+      var $async$_async_evaluate$_evaluateMacroArguments$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = invocation.$arguments;
+              restArgs_ = t1.rest;
+              if (restArgs_ == null) {
+                $async$returnValue = new A._Record_2(t1.positional, t1.named);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t2 = t1.positional;
+              positional = A._setArrayType(t2.slice(0), A._arrayInstanceType(t2));
+              named = A.LinkedHashMap_LinkedHashMap$of(t1.named, type$.String, type$.Expression);
+              $async$goto = 3;
+              return A._asyncAwait(restArgs_.accept$1($async$self), $async$_async_evaluate$_evaluateMacroArguments$1);
+            case 3:
+              // returning from await.
+              rest = $async$result;
+              restNodeForSpan = $async$self._async_evaluate$_expressionNode$1(restArgs_);
+              if (rest instanceof A.SassMap)
+                $async$self._async_evaluate$_addRestMap$4(named, rest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure3(restArgs_));
+              else if (rest instanceof A.SassList) {
+                t2 = rest._list$_contents;
+                B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t2, new A._EvaluateVisitor__evaluateMacroArguments_closure4($async$self, restNodeForSpan, restArgs_), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,Expression>")));
+                if (rest instanceof A.SassArgumentList) {
+                  rest._wereKeywordsAccessed = true;
+                  rest._keywords.forEach$1(0, new A._EvaluateVisitor__evaluateMacroArguments_closure5($async$self, named, restNodeForSpan, restArgs_));
+                }
+              } else
+                positional.push(new A.ValueExpression($async$self._async_evaluate$_withoutSlash$2(rest, restNodeForSpan), restArgs_.get$span(restArgs_)));
+              keywordRestArgs_ = t1.keywordRest;
+              if (keywordRestArgs_ == null) {
+                $async$returnValue = new A._Record_2(positional, named);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 4;
+              return A._asyncAwait(keywordRestArgs_.accept$1($async$self), $async$_async_evaluate$_evaluateMacroArguments$1);
+            case 4:
+              // returning from await.
+              keywordRest = $async$result;
+              keywordRestNodeForSpan = $async$self._async_evaluate$_expressionNode$1(keywordRestArgs_);
+              if (keywordRest instanceof A.SassMap) {
+                $async$self._async_evaluate$_addRestMap$4(named, keywordRest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure6($async$self, keywordRestNodeForSpan, keywordRestArgs_));
+                $async$returnValue = new A._Record_2(positional, named);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs_.get$span(keywordRestArgs_)));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_evaluateMacroArguments$1, $async$completer);
+    },
+    _async_evaluate$_addRestMap$1$4(values, map, nodeWithSpan, convert) {
+      map._map$_contents.forEach$1(0, new A._EvaluateVisitor__addRestMap_closure0(this, values, convert, this._async_evaluate$_expressionNode$1(nodeWithSpan), map, nodeWithSpan));
+    },
+    _async_evaluate$_addRestMap$4(values, map, nodeWithSpan, convert) {
+      return this._async_evaluate$_addRestMap$1$4(values, map, nodeWithSpan, convert, type$.dynamic);
+    },
+    _async_evaluate$_verifyArguments$4(positional, named, $arguments, nodeWithSpan) {
+      return this._async_evaluate$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__verifyArguments_closure0($arguments, positional, named));
+    },
+    visitSelectorExpression$1(node) {
+      return this.visitSelectorExpression$body$_EvaluateVisitor(node);
+    },
+    visitSelectorExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t1;
+      var $async$visitSelectorExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+              t1 = t1 == null ? null : t1.originalSelector.get$asSassList();
+              $async$returnValue = t1 == null ? B.C__SassNull : t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSelectorExpression$1, $async$completer);
+    },
+    visitStringExpression$1(node) {
+      return this.visitStringExpression$body$_EvaluateVisitor(node);
+    },
+    visitStringExpression$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassString),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, _i, value, t5, _0_0, text, oldInSupportsDeclaration;
+      var $async$visitStringExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldInSupportsDeclaration = $async$self._async_evaluate$_inSupportsDeclaration;
+              $async$self._async_evaluate$_inSupportsDeclaration = false;
+              t1 = A._setArrayType([], type$.JSArray_String);
+              t2 = node.text.contents, t3 = t2.length, t4 = type$.Expression, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              value = t2[_i];
+              if (typeof value == "string") {
+                t5 = value;
+                // goto break $label0$0
+                $async$goto = 6;
+                break;
+              }
+              $async$goto = t4._is(value) ? 7 : 8;
+              break;
+            case 7:
+              // then
+              $async$goto = 9;
+              return A._asyncAwait(value.accept$1($async$self), $async$visitStringExpression$1);
+            case 9:
+              // returning from await.
+              _0_0 = $async$result;
+              $label1$1: {
+                if (_0_0 instanceof A.SassString) {
+                  text = _0_0._string$_text;
+                  t5 = text;
+                  break $label1$1;
+                }
+                t5 = $async$self._async_evaluate$_serialize$3$quote(_0_0, value, false);
+                break $label1$1;
+              }
+              // goto break $label0$0
+              $async$goto = 6;
+              break;
+            case 8:
+              // join
+              t5 = A.throwExpression(A.UnsupportedError$("Unknown interpolation value " + A.S(value)));
+            case 6:
+              // break $label0$0
+              t1.push(t5);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              t1 = B.JSArray_methods.join$0(t1);
+              $async$self._async_evaluate$_inSupportsDeclaration = oldInSupportsDeclaration;
+              $async$returnValue = new A.SassString(t1, node.hasQuotes);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitStringExpression$1, $async$completer);
+    },
+    visitSupportsExpression$1(expression) {
+      return this.visitSupportsExpression$body$_EvaluateVisitor(expression);
+    },
+    visitSupportsExpression$body$_EvaluateVisitor(expression) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassString),
+        $async$returnValue, $async$self = this, $async$temp1;
+      var $async$visitSupportsExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_visitSupportsCondition$1(expression.condition), $async$visitSupportsExpression$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = new $async$temp1.SassString($async$result, false);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSupportsExpression$1, $async$completer);
+    },
+    visitCssAtRule$1(node) {
+      return this.visitCssAtRule$body$_EvaluateVisitor(node);
+    },
+    visitCssAtRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, wasInKeyframes, wasInUnknownAtRule, t1;
+      var $async$visitCssAtRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.At_rul, node.span));
+              if (node.isChildless) {
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").addChild$1(A.ModifiableCssAtRule$(node.name, node.span, true, node.value));
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              wasInKeyframes = $async$self._async_evaluate$_inKeyframes;
+              wasInUnknownAtRule = $async$self._async_evaluate$_inUnknownAtRule;
+              t1 = node.name;
+              if (A.unvendor(t1.value) === "keyframes")
+                $async$self._async_evaluate$_inKeyframes = true;
+              else
+                $async$self._async_evaluate$_inUnknownAtRule = true;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$(t1, node.span, false, node.value), new A._EvaluateVisitor_visitCssAtRule_closure1($async$self, node), false, new A._EvaluateVisitor_visitCssAtRule_closure2(), type$.ModifiableCssAtRule, type$.Null), $async$visitCssAtRule$1);
+            case 3:
+              // returning from await.
+              $async$self._async_evaluate$_inUnknownAtRule = wasInUnknownAtRule;
+              $async$self._async_evaluate$_inKeyframes = wasInKeyframes;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssAtRule$1, $async$completer);
+    },
+    visitCssComment$1(node) {
+      return this.visitCssComment$body$_EvaluateVisitor(node);
+    },
+    visitCssComment$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssComment$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") === $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root") && $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root").children._collection$_source))
+                $async$self._async_evaluate$__endOfImports = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") + 1;
+              $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").addChild$1(new A.ModifiableCssComment(node.text, node.span));
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssComment$1, $async$completer);
+    },
+    visitCssDeclaration$1(node) {
+      return this.visitCssDeclaration$body$_EvaluateVisitor(node);
+    },
+    visitCssDeclaration$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssDeclaration$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").addChild$1(A.ModifiableCssDeclaration$(node.name, node.value, node.span, node.parsedAsCustomProperty, node.valueSpanForMap));
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssDeclaration$1, $async$completer);
+    },
+    visitCssImport$1(node) {
+      return this.visitCssImport$body$_EvaluateVisitor(node);
+    },
+    visitCssImport$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, modifiableNode;
+      var $async$visitCssImport$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              modifiableNode = new A.ModifiableCssImport(node.url, node.modifiers, node.span);
+              if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") !== $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root"))
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").addChild$1(modifiableNode);
+              else if ($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root").children._collection$_source)) {
+                $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__root, "_root").addChild$1(modifiableNode);
+                $async$self._async_evaluate$__endOfImports = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__endOfImports, "_endOfImports") + 1;
+              } else {
+                t1 = $async$self._async_evaluate$_outOfOrderImports;
+                (t1 == null ? $async$self._async_evaluate$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport) : t1).push(modifiableNode);
+              }
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssImport$1, $async$completer);
+    },
+    visitCssKeyframeBlock$1(node) {
+      return this.visitCssKeyframeBlock$body$_EvaluateVisitor(node);
+    },
+    visitCssKeyframeBlock$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssKeyframeBlock$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$(node.selector, node.span), new A._EvaluateVisitor_visitCssKeyframeBlock_closure1($async$self, node), false, new A._EvaluateVisitor_visitCssKeyframeBlock_closure2(), type$.ModifiableCssKeyframeBlock, type$.Null), $async$visitCssKeyframeBlock$1);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssKeyframeBlock$1, $async$completer);
+    },
+    visitCssMediaRule$1(node) {
+      return this.visitCssMediaRule$body$_EvaluateVisitor(node);
+    },
+    visitCssMediaRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, mergedQueries, t1, mergedSources, t2, t3;
+      var $async$visitCssMediaRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Media_, node.span));
+              mergedQueries = A.NullableExtension_andThen($async$self._async_evaluate$_mediaQueries, new A._EvaluateVisitor_visitCssMediaRule_closure2($async$self, node));
+              t1 = mergedQueries == null;
+              if (!t1 && J.get$isEmpty$asx(mergedQueries)) {
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (t1)
+                mergedSources = B.Set_empty1;
+              else {
+                t2 = $async$self._async_evaluate$_mediaQuerySources;
+                t2.toString;
+                t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery);
+                t3 = $async$self._async_evaluate$_mediaQueries;
+                t3.toString;
+                t2.addAll$1(0, t3);
+                t2.addAll$1(0, node.queries);
+                mergedSources = t2;
+              }
+              t1 = t1 ? node.queries : mergedQueries;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$(t1, node.span), new A._EvaluateVisitor_visitCssMediaRule_closure3($async$self, mergedQueries, node, mergedSources), false, new A._EvaluateVisitor_visitCssMediaRule_closure4(mergedSources), type$.ModifiableCssMediaRule, type$.Null), $async$visitCssMediaRule$1);
+            case 3:
+              // returning from await.
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssMediaRule$1, $async$completer);
+    },
+    visitCssStyleRule$1(node) {
+      return this.visitCssStyleRule$body$_EvaluateVisitor(node);
+    },
+    visitCssStyleRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, styleRule, t2, nest, t3, originalSelector, rule, oldAtRootExcludingStyleRule, _0_1, lastChild;
+      var $async$visitCssStyleRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Style_n, node.span));
+              else if ($async$self._async_evaluate$_inKeyframes && $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent") instanceof A.ModifiableCssKeyframeBlock)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Style_k, node.span));
+              t1 = $async$self._async_evaluate$_atRootExcludingStyleRule;
+              styleRule = t1 ? null : $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+              t2 = t1 ? null : $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+              t2 = t2 == null ? null : t2.fromPlainCss;
+              nest = t2 !== true;
+              t2 = node._style_rule$_selector._box$_inner;
+              if (nest) {
+                t2 = t2.value;
+                t3 = styleRule == null ? null : styleRule.originalSelector;
+                originalSelector = t2.nestWithin$3$implicitParent$preserveParentSelectors(t3, !t1, node.fromPlainCss);
+              } else
+                originalSelector = t2.value;
+              rule = A.ModifiableCssStyleRule$($async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__extensionStore, "_extensionStore").addSelector$2(originalSelector, $async$self._async_evaluate$_mediaQueries), node.span, node.fromPlainCss, originalSelector);
+              oldAtRootExcludingStyleRule = $async$self._async_evaluate$_atRootExcludingStyleRule;
+              $async$self._async_evaluate$_atRootExcludingStyleRule = false;
+              t1 = nest ? new A._EvaluateVisitor_visitCssStyleRule_closure1() : null;
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitCssStyleRule_closure2($async$self, rule, node), false, t1, type$.ModifiableCssStyleRule, type$.Null), $async$visitCssStyleRule$1);
+            case 2:
+              // returning from await.
+              $async$self._async_evaluate$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+              t1 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent").children._collection$_source;
+              t2 = J.getInterceptor$asx(t1);
+              _0_1 = t2.get$length(t1);
+              if (_0_1 >= 1) {
+                lastChild = t2.elementAt$1(t1, _0_1 - 1);
+                t1 = styleRule == null;
+              } else {
+                lastChild = null;
+                t1 = false;
+              }
+              if (t1)
+                lastChild.isGroupEnd = true;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssStyleRule$1, $async$completer);
+    },
+    visitCssStylesheet$1(node) {
+      return this.visitCssStylesheet$body$_EvaluateVisitor(node);
+    },
+    visitCssStylesheet$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1;
+      var $async$visitCssStylesheet$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.get$iterator$ax(node.get$children(node));
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              $async$goto = 4;
+              return A._asyncAwait(t1.get$current(t1).accept$1($async$self), $async$visitCssStylesheet$1);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssStylesheet$1, $async$completer);
+    },
+    visitCssSupportsRule$1(node) {
+      return this.visitCssSupportsRule$body$_EvaluateVisitor(node);
+    },
+    visitCssSupportsRule$body$_EvaluateVisitor(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssSupportsRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate$_exception$2(string$.Suppor, node.span));
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate$_withParent$2$4$scopeWhen$through(A.ModifiableCssSupportsRule$(node.condition, node.span), new A._EvaluateVisitor_visitCssSupportsRule_closure1($async$self, node), false, new A._EvaluateVisitor_visitCssSupportsRule_closure2(), type$.ModifiableCssSupportsRule, type$.Null), $async$visitCssSupportsRule$1);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssSupportsRule$1, $async$completer);
+    },
+    _async_evaluate$_handleReturn$1$2(list, callback) {
+      return this._handleReturn$body$_EvaluateVisitor(list, callback);
+    },
+    _async_evaluate$_handleReturn$2(list, callback) {
+      return this._async_evaluate$_handleReturn$1$2(list, callback, type$.dynamic);
+    },
+    _handleReturn$body$_EvaluateVisitor(list, callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, t1, _i, _0_0;
+      var $async$_async_evaluate$_handleReturn$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = list.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < list.length)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(callback.call$1(list[_i]), $async$_async_evaluate$_handleReturn$1$2);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              list.length === t1 || (0, A.throwConcurrentModificationError)(list), ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_handleReturn$1$2, $async$completer);
+    },
+    _async_evaluate$_withEnvironment$1$2(environment, callback, $T) {
+      return this._withEnvironment$body$_EvaluateVisitor(environment, callback, $T, $T);
+    },
+    _withEnvironment$body$_EvaluateVisitor(environment, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, result, oldEnvironment;
+      var $async$_async_evaluate$_withEnvironment$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldEnvironment = $async$self._async_evaluate$_environment;
+              $async$self._async_evaluate$_environment = environment;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate$_withEnvironment$1$2);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_environment = oldEnvironment;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_withEnvironment$1$2, $async$completer);
+    },
+    _async_evaluate$_interpolationToValue$3$trim$warnForColor(interpolation, trim, warnForColor) {
+      return this._interpolationToValue$body$_EvaluateVisitor(interpolation, trim, warnForColor);
+    },
+    _async_evaluate$_interpolationToValue$1(interpolation) {
+      return this._async_evaluate$_interpolationToValue$3$trim$warnForColor(interpolation, false, false);
+    },
+    _async_evaluate$_interpolationToValue$2$warnForColor(interpolation, warnForColor) {
+      return this._async_evaluate$_interpolationToValue$3$trim$warnForColor(interpolation, false, warnForColor);
+    },
+    _interpolationToValue$body$_EvaluateVisitor(interpolation, trim, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CssValue_String),
+        $async$returnValue, $async$self = this, result, t1;
+      var $async$_async_evaluate$_interpolationToValue$3$trim$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolation$2$warnForColor(interpolation, warnForColor), $async$_async_evaluate$_interpolationToValue$3$trim$warnForColor);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              t1 = trim ? A.trimAscii(result, true) : result;
+              $async$returnValue = new A.CssValue(t1, interpolation.span, type$.CssValue_String);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_interpolationToValue$3$trim$warnForColor, $async$completer);
+    },
+    _async_evaluate$_performInterpolation$2$warnForColor(interpolation, warnForColor) {
+      return this._performInterpolation$body$_EvaluateVisitor(interpolation, warnForColor);
+    },
+    _async_evaluate$_performInterpolation$1(interpolation) {
+      return this._async_evaluate$_performInterpolation$2$warnForColor(interpolation, false);
+    },
+    _performInterpolation$body$_EvaluateVisitor(interpolation, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this;
+      var $async$_async_evaluate$_performInterpolation$2$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, false, warnForColor), $async$_async_evaluate$_performInterpolation$2$warnForColor);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result._0;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_performInterpolation$2$warnForColor, $async$completer);
+    },
+    _async_evaluate$_performInterpolationWithMap$2$warnForColor(interpolation, warnForColor) {
+      return this._performInterpolationWithMap$body$_EvaluateVisitor(interpolation, true);
+    },
+    _performInterpolationWithMap$body$_EvaluateVisitor(interpolation, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_String_and_InterpolationMap),
+        $async$returnValue, $async$self = this, _0_0, result, map;
+      var $async$_async_evaluate$_performInterpolationWithMap$2$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, true, true), $async$_async_evaluate$_performInterpolationWithMap$2$warnForColor);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              result = _0_0._0;
+              map = _0_0._1;
+              map.toString;
+              $async$returnValue = new A._Record_2(result, map);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_performInterpolationWithMap$2$warnForColor, $async$completer);
+    },
+    _async_evaluate$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, sourceMap, warnForColor) {
+      return this._performInterpolationHelper$body$_EvaluateVisitor(interpolation, sourceMap, warnForColor);
+    },
+    _performInterpolationHelper$body$_EvaluateVisitor(interpolation, sourceMap, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_String_and_nullable_InterpolationMap),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, t5, t6, t7, first, _i, t8, value, result, t9, result0, targetLocations, oldInSupportsDeclaration;
+      var $async$_async_evaluate$_performInterpolationHelper$3$sourceMap$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              targetLocations = sourceMap ? A._setArrayType([], type$.JSArray_SourceLocation) : null;
+              oldInSupportsDeclaration = $async$self._async_evaluate$_inSupportsDeclaration;
+              $async$self._async_evaluate$_inSupportsDeclaration = false;
+              t1 = interpolation.contents, t2 = t1.length, t3 = type$.Expression, t4 = targetLocations == null, t5 = type$.JSArray_Object, t6 = interpolation.span, t7 = type$.Object, first = true, _i = 0, t8 = "";
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              value = t1[_i];
+              if (!first)
+                if (!t4)
+                  targetLocations.push(A.SourceLocation$(t8.length, null, null, null));
+              if (typeof value == "string") {
+                t8 += value;
+                // goto for update
+                $async$goto = 4;
+                break;
+              }
+              t3._as(value);
+              $async$goto = 6;
+              return A._asyncAwait(value.accept$1($async$self), $async$_async_evaluate$_performInterpolationHelper$3$sourceMap$warnForColor);
+            case 6:
+              // returning from await.
+              result = $async$result;
+              if (warnForColor && $.$get$namesByColor().containsKey$1(result)) {
+                t9 = A._setArrayType([""], t5);
+                result0 = A.List_List$from(t9, false, t7);
+                result0.fixed$length = Array;
+                result0.immutable$list = Array;
+                result0 = new A.Interpolation(result0, t6);
+                result0.Interpolation$2(t9, t6);
+                t9 = $.$get$namesByColor();
+                $async$self._async_evaluate$_warn$2(string$.You_pr + A.S(t9.$index(0, result)) + string$.x20in_in + result.toString$0(0) + string$.x2c_whicw + A.S(t9.$index(0, result)) + string$.x22x29__If + new A.BinaryOperationExpression(B.BinaryOperator_u15, new A.StringExpression(result0, true), value, false).toString$0(0) + "'.", value.get$span(value));
+              }
+              t8 += $async$self._async_evaluate$_serialize$3$quote(result, value, false);
+            case 4:
+              // for update
+              ++_i, first = false;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$self._async_evaluate$_inSupportsDeclaration = oldInSupportsDeclaration;
+              $async$returnValue = new A._Record_2(t8.charCodeAt(0) == 0 ? t8 : t8, A.NullableExtension_andThen(targetLocations, new A._EvaluateVisitor__performInterpolationHelper_closure0(interpolation)));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_performInterpolationHelper$3$sourceMap$warnForColor, $async$completer);
+    },
+    _evaluateToCss$2$quote(expression, quote) {
+      return this._evaluateToCss$body$_EvaluateVisitor(expression, quote);
+    },
+    _evaluateToCss$1(expression) {
+      return this._evaluateToCss$2$quote(expression, true);
+    },
+    _evaluateToCss$body$_EvaluateVisitor(expression, quote) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1;
+      var $async$_evaluateToCss$2$quote = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = expression.accept$1($async$self);
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$_evaluateToCss$2$quote);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate$_serialize$3$quote($async$result, expression, quote);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_evaluateToCss$2$quote, $async$completer);
+    },
+    _async_evaluate$_serialize$3$quote(value, nodeWithSpan, quote) {
+      return this._async_evaluate$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__serialize_closure0(value, quote));
+    },
+    _async_evaluate$_serialize$2(value, nodeWithSpan) {
+      return this._async_evaluate$_serialize$3$quote(value, nodeWithSpan, true);
+    },
+    _async_evaluate$_expressionNode$1(expression) {
+      var t1;
+      if (expression instanceof A.VariableExpression) {
+        t1 = this._async_evaluate$_addExceptionSpan$2(expression, new A._EvaluateVisitor__expressionNode_closure0(this, expression));
+        return t1 == null ? expression : t1;
+      } else
+        return expression;
+    },
+    _async_evaluate$_withParent$2$4$scopeWhen$through(node, callback, scopeWhen, through, $S, $T) {
+      return this._withParent$body$_EvaluateVisitor(node, callback, scopeWhen, through, $S, $T, $T);
+    },
+    _async_evaluate$_withParent$2$2(node, callback, $S, $T) {
+      return this._async_evaluate$_withParent$2$4$scopeWhen$through(node, callback, true, null, $S, $T);
+    },
+    _async_evaluate$_withParent$2$3$scopeWhen(node, callback, scopeWhen, $S, $T) {
+      return this._async_evaluate$_withParent$2$4$scopeWhen$through(node, callback, scopeWhen, null, $S, $T);
+    },
+    _withParent$body$_EvaluateVisitor(node, callback, scopeWhen, through, $S, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, t1, result;
+      var $async$_async_evaluate$_withParent$2$4$scopeWhen$through = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$self._async_evaluate$_addChild$2$through(node, through);
+              t1 = $async$self._async_evaluate$_assertInModule$2($async$self._async_evaluate$__parent, "__parent");
+              $async$self._async_evaluate$__parent = node;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate$_environment.scope$1$2$when(callback, scopeWhen, $T), $async$_async_evaluate$_withParent$2$4$scopeWhen$through);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$__parent = t1;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_withParent$2$4$scopeWhen$through, $async$completer);
+    },
+    _async_evaluate$_addChild$2$through(node, through) {
+      var _0_0, grandparent, t1,
+        $parent = this._async_evaluate$_assertInModule$2(this._async_evaluate$__parent, "__parent");
+      if (through != null) {
+        for (; through.call$1($parent); $parent = _0_0) {
+          _0_0 = $parent._parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$(string$.throug + node.toString$0(0) + ".", null));
+        }
+        if ($parent.get$hasFollowingSibling()) {
+          grandparent = $parent._parent;
+          t1 = grandparent.children;
+          if ($parent.equalsIgnoringChildren$1(t1.get$last(t1)))
+            $parent = type$.ModifiableCssParentNode._as(t1.get$last(t1));
+          else {
+            $parent = $parent.copyWithoutChildren$0();
+            grandparent.addChild$1($parent);
+          }
+        }
+      }
+      $parent.addChild$1(node);
+    },
+    _async_evaluate$_addChild$1(node) {
+      return this._async_evaluate$_addChild$2$through(node, null);
+    },
+    _async_evaluate$_withStyleRule$1$2(rule, callback, $T) {
+      return this._withStyleRule$body$_EvaluateVisitor(rule, callback, $T, $T);
+    },
+    _withStyleRule$body$_EvaluateVisitor(rule, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, result, oldRule;
+      var $async$_async_evaluate$_withStyleRule$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldRule = $async$self._async_evaluate$_styleRuleIgnoringAtRoot;
+              $async$self._async_evaluate$_styleRuleIgnoringAtRoot = rule;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate$_withStyleRule$1$2);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_styleRuleIgnoringAtRoot = oldRule;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_withStyleRule$1$2, $async$completer);
+    },
+    _async_evaluate$_withMediaQueries$1$3(queries, sources, callback, $T) {
+      return this._withMediaQueries$body$_EvaluateVisitor(queries, sources, callback, $T, $T);
+    },
+    _withMediaQueries$body$_EvaluateVisitor(queries, sources, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, result, oldMediaQueries, oldSources;
+      var $async$_async_evaluate$_withMediaQueries$1$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldMediaQueries = $async$self._async_evaluate$_mediaQueries;
+              oldSources = $async$self._async_evaluate$_mediaQuerySources;
+              $async$self._async_evaluate$_mediaQueries = queries;
+              $async$self._async_evaluate$_mediaQuerySources = sources;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate$_withMediaQueries$1$3);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_mediaQueries = oldMediaQueries;
+              $async$self._async_evaluate$_mediaQuerySources = oldSources;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_withMediaQueries$1$3, $async$completer);
+    },
+    _async_evaluate$_withStackFrame$1$3(member, nodeWithSpan, callback, $T) {
+      return this._withStackFrame$body$_EvaluateVisitor(member, nodeWithSpan, callback, $T, $T);
+    },
+    _withStackFrame$body$_EvaluateVisitor(member, nodeWithSpan, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, oldMember, result, t1;
+      var $async$_async_evaluate$_withStackFrame$1$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate$_stack;
+              t1.push(new A._Record_2($async$self._async_evaluate$_member, nodeWithSpan));
+              oldMember = $async$self._async_evaluate$_member;
+              $async$self._async_evaluate$_member = member;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate$_withStackFrame$1$3);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate$_member = oldMember;
+              t1.pop();
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_withStackFrame$1$3, $async$completer);
+    },
+    _async_evaluate$_withoutSlash$2(value, nodeForSpan) {
+      var t1;
+      if (value instanceof A.SassNumber)
+        t1 = value.asSlash != null;
+      else
+        t1 = false;
+      if (t1)
+        this._async_evaluate$_warn$3(string$.Using__i + A.S(new A._EvaluateVisitor__withoutSlash_recommendation0().call$1(value)) + string$.x0a_Morex20, nodeForSpan.get$span(nodeForSpan), B.Deprecation_oJv);
+      return value.withoutSlash$0();
+    },
+    _async_evaluate$_stackFrame$2(member, span) {
+      return A.frameForSpan(span, member, A.NullableExtension_andThen(span.get$sourceUrl(span), new A._EvaluateVisitor__stackFrame_closure0(this)));
+    },
+    _async_evaluate$_stackTrace$1(span) {
+      var t2, t3, _i, t4, nodeWithSpan, _this = this,
+        t1 = A._setArrayType([], type$.JSArray_Frame);
+      for (t2 = _this._async_evaluate$_stack, t3 = t2.length, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        t4 = t2[_i];
+        nodeWithSpan = t4._1;
+        t1.push(_this._async_evaluate$_stackFrame$2(t4._0, nodeWithSpan.get$span(nodeWithSpan)));
+      }
+      if (span != null)
+        t1.push(_this._async_evaluate$_stackFrame$2(_this._async_evaluate$_member, span));
+      return A.Trace$(new A.ReversedListIterable(t1, type$.ReversedListIterable_Frame), null);
+    },
+    _async_evaluate$_stackTrace$0() {
+      return this._async_evaluate$_stackTrace$1(null);
+    },
+    _async_evaluate$_warn$3(message, span, deprecation) {
+      var t1, trace, _this = this;
+      if (_this._async_evaluate$_quietDeps)
+        if (!_this._async_evaluate$_inDependency) {
+          t1 = _this._async_evaluate$_currentCallable;
+          t1 = t1 == null ? null : t1.inDependency;
+          t1 = t1 === true;
+        } else
+          t1 = true;
+      else
+        t1 = false;
+      if (t1)
+        return;
+      if (!_this._async_evaluate$_warningsEmitted.add$1(0, new A._Record_2(message, span)))
+        return;
+      trace = _this._async_evaluate$_stackTrace$1(span);
+      t1 = _this._async_evaluate$_logger;
+      if (deprecation == null)
+        t1.warn$3$span$trace(0, message, span, trace);
+      else
+        A.WarnForDeprecation_warnForDeprecation(t1, deprecation, message, span, trace);
+    },
+    _async_evaluate$_warn$2(message, span) {
+      return this._async_evaluate$_warn$3(message, span, null);
+    },
+    _async_evaluate$_exception$2(message, span) {
+      var t1, t2;
+      if (span == null) {
+        t1 = B.JSArray_methods.get$last(this._async_evaluate$_stack)._1;
+        t1 = t1.get$span(t1);
+      } else
+        t1 = span;
+      t2 = this._async_evaluate$_stackTrace$1(span);
+      return new A.SassRuntimeException(t2, B.Set_empty, message, t1);
+    },
+    _async_evaluate$_exception$1(message) {
+      return this._async_evaluate$_exception$2(message, null);
+    },
+    _async_evaluate$_multiSpanException$3(message, primaryLabel, secondaryLabels) {
+      var t1 = B.JSArray_methods.get$last(this._async_evaluate$_stack)._1;
+      return A.MultiSpanSassRuntimeException$(message, t1.get$span(t1), primaryLabel, secondaryLabels, this._async_evaluate$_stackTrace$0(), null);
+    },
+    _async_evaluate$_addExceptionSpan$1$2(nodeWithSpan, callback) {
+      var error, stackTrace, t1, exception,
+        addStackFrame = true;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassScriptException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error.withSpan$1(nodeWithSpan.get$span(nodeWithSpan));
+          A.throwWithTrace(t1.withTrace$1(this._async_evaluate$_stackTrace$1(addStackFrame ? nodeWithSpan.get$span(nodeWithSpan) : null)), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _async_evaluate$_addExceptionSpan$2(nodeWithSpan, callback) {
+      return this._async_evaluate$_addExceptionSpan$1$2(nodeWithSpan, callback, type$.dynamic);
+    },
+    _addExceptionSpanAsync$1$3$addStackFrame(nodeWithSpan, callback, addStackFrame, $T) {
+      return this._addExceptionSpanAsync$body$_EvaluateVisitor(nodeWithSpan, callback, addStackFrame, $T, $T);
+    },
+    _addExceptionSpanAsync$1$2(nodeWithSpan, callback, $T) {
+      return this._addExceptionSpanAsync$1$3$addStackFrame(nodeWithSpan, callback, true, $T);
+    },
+    _addExceptionSpanAsync$body$_EvaluateVisitor(nodeWithSpan, callback, addStackFrame, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, $async$exception;
+      var $async$_addExceptionSpanAsync$1$3$addStackFrame = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              t1 = callback.call$0();
+              $async$goto = 7;
+              return A._asyncAwait($T._eval$1("Future<0>")._is(t1) ? t1 : A._Future$value(t1, $T), $async$_addExceptionSpanAsync$1$3$addStackFrame);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassScriptException) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                t1 = error.withSpan$1(nodeWithSpan.get$span(nodeWithSpan));
+                A.throwWithTrace(t1.withTrace$1($async$self._async_evaluate$_stackTrace$1(addStackFrame ? nodeWithSpan.get$span(nodeWithSpan) : null)), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_addExceptionSpanAsync$1$3$addStackFrame, $async$completer);
+    },
+    _async_evaluate$_addExceptionTrace$1$1(callback, $T) {
+      return this._addExceptionTrace$body$_EvaluateVisitor(callback, $T, $T);
+    },
+    _addExceptionTrace$body$_EvaluateVisitor(callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, t2, $async$exception;
+      var $async$_async_evaluate$_addExceptionTrace$1$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              t1 = callback.call$0();
+              $async$goto = 7;
+              return A._asyncAwait($T._eval$1("Future<0>")._is(t1) ? t1 : A._Future$value(t1, $T), $async$_async_evaluate$_addExceptionTrace$1$1);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (type$.SassRuntimeException._is(t1))
+                throw $async$exception;
+              else if (t1 instanceof A.SassException) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                t1 = error;
+                t2 = J.getInterceptor$z(t1);
+                A.throwWithTrace(error.withTrace$1($async$self._async_evaluate$_stackTrace$1(A.SourceSpanException.prototype.get$span.call(t2, t1))), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_addExceptionTrace$1$1, $async$completer);
+    },
+    _async_evaluate$_addErrorSpan$1$2(nodeWithSpan, callback, $T) {
+      return this._addErrorSpan$body$_EvaluateVisitor(nodeWithSpan, callback, $T, $T);
+    },
+    _addErrorSpan$body$_EvaluateVisitor(nodeWithSpan, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, t2, t3, $async$exception;
+      var $async$_async_evaluate$_addErrorSpan$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              $async$goto = 7;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate$_addErrorSpan$1$2);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (type$.SassRuntimeException._is(t1)) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                if (!B.JSString_methods.startsWith$1(J.get$span$z(error).get$text(), "@error"))
+                  throw $async$exception;
+                t1 = error._span_exception$_message;
+                t2 = nodeWithSpan.get$span(nodeWithSpan);
+                t3 = $async$self._async_evaluate$_stackTrace$0();
+                A.throwWithTrace(new A.SassRuntimeException(t3, B.Set_empty, t1, t2), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate$_addErrorSpan$1$2, $async$completer);
+    }
+  };
+  A._EvaluateVisitor_closure12.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._async_evaluate$_environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string$_text, "_", "-");
+      return t1.globalVariableExists$2$namespace(t2, module == null ? null : module._string$_text) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure13.prototype = {
+    call$1($arguments) {
+      var variable = J.$index$asx($arguments, 0).assertString$1("name"),
+        t1 = this.$this._async_evaluate$_environment;
+      return t1.getVariable$1(A.stringReplaceAllUnchecked(variable._string$_text, "_", "-")) != null ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure14.prototype = {
+    call$1($arguments) {
+      var module, t2, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._async_evaluate$_environment;
+      t3 = variable._string$_text;
+      t4 = A.stringReplaceAllUnchecked(t3, "_", "-");
+      return t2.getFunction$2$namespace(t4, module == null ? null : module._string$_text) != null || t1._async_evaluate$_builtInFunctions.containsKey$1(t3) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure15.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._async_evaluate$_environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string$_text, "_", "-");
+      return t1.getMixin$2$namespace(t2, module == null ? null : module._string$_text) != null ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure16.prototype = {
+    call$1($arguments) {
+      var t1 = this.$this._async_evaluate$_environment;
+      if (!t1._async_environment$_inMixin)
+        throw A.wrapException(A.SassScriptException$(string$.conten, null));
+      return t1._async_environment$_content != null ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure17.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string$_text,
+        module = this.$this._async_evaluate$_environment._async_environment$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs(module.get$variables(), type$.String, t1), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString(t4._0, true), t4._1);
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._EvaluateVisitor_closure18.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string$_text,
+        module = this.$this._async_evaluate$_environment._async_environment$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs(module.get$functions(module), type$.String, type$.AsyncCallable), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString(t4._0, true), new A.SassFunction(t4._1));
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._EvaluateVisitor_closure19.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string$_text,
+        module = this.$this._async_evaluate$_environment._async_environment$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs(module.get$mixins(), type$.String, type$.AsyncCallable), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString(t4._0, true), new A.SassMixin(t4._1));
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._EvaluateVisitor_closure20.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name"),
+        css = t1.$index($arguments, 1).get$isTruthy();
+      t1 = t1.$index($arguments, 2).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      if (css) {
+        if (module != null)
+          throw A.wrapException(string$.x24css_a);
+        return new A.SassFunction(new A.PlainCssCallable($name._string$_text));
+      }
+      t1 = this.$this;
+      t2 = t1._async_evaluate$_callableNode;
+      t2.toString;
+      callable = t1._async_evaluate$_addExceptionSpan$2(t2, new A._EvaluateVisitor__closure6(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Function not found: " + $name.toString$0(0));
+      return new A.SassFunction(callable);
+    },
+    $signature: 165
+  };
+  A._EvaluateVisitor__closure6.prototype = {
+    call$0() {
+      var local,
+        normalizedName = A.stringReplaceAllUnchecked(this.name._string$_text, "_", "-"),
+        t1 = this.module,
+        namespace = t1 == null ? null : t1._string$_text;
+      t1 = this.$this;
+      local = t1._async_evaluate$_environment.getFunction$2$namespace(normalizedName, namespace);
+      if (local != null || namespace != null)
+        return local;
+      return t1._async_evaluate$_builtInFunctions.$index(0, normalizedName);
+    },
+    $signature: 99
+  };
+  A._EvaluateVisitor_closure21.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._async_evaluate$_callableNode;
+      t2.toString;
+      callable = t1._async_evaluate$_addExceptionSpan$2(t2, new A._EvaluateVisitor__closure5(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Mixin not found: " + $name.toString$0(0));
+      return new A.SassMixin(callable);
+    },
+    $signature: 166
+  };
+  A._EvaluateVisitor__closure5.prototype = {
+    call$0() {
+      var t1 = this.$this._async_evaluate$_environment,
+        t2 = A.stringReplaceAllUnchecked(this.name._string$_text, "_", "-"),
+        t3 = this.module;
+      return t1.getMixin$2$namespace(t2, t3 == null ? null : t3._string$_text);
+    },
+    $signature: 99
+  };
+  A._EvaluateVisitor_closure22.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_EvaluateVisitor_closure1($arguments);
+    },
+    $call$body$_EvaluateVisitor_closure1($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, invocation, callableNode, t1, $function, args;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.getInterceptor$asx($arguments);
+              $function = t1.$index($arguments, 0);
+              args = type$.SassArgumentList._as(t1.$index($arguments, 1));
+              t1 = $async$self.$this;
+              t2 = t1._async_evaluate$_callableNode;
+              t2.toString;
+              t3 = A._setArrayType([], type$.JSArray_Expression);
+              t4 = type$.String;
+              t5 = type$.Expression;
+              t6 = t2.get$span(t2);
+              t7 = t2.get$span(t2);
+              args._wereKeywordsAccessed = true;
+              t8 = args._keywords;
+              if (t8.get$isEmpty(t8))
+                t2 = null;
+              else {
+                t9 = type$.Value;
+                t10 = A.LinkedHashMap_LinkedHashMap$_empty(t9, t9);
+                for (args._wereKeywordsAccessed = true, t8 = A.MapExtensions_get_pairs(t8, t4, t9), t8 = t8.get$iterator(t8); t8.moveNext$0();) {
+                  t11 = t8.get$current(t8);
+                  t10.$indexSet(0, new A.SassString(t11._0, false), t11._1);
+                }
+                t2 = new A.ValueExpression(new A.SassMap(A.ConstantMap_ConstantMap$from(t10, t9, t9)), t2.get$span(t2));
+              }
+              invocation = new A.ArgumentInvocation(A.List_List$unmodifiable(t3, t5), A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t4, t5), new A.ValueExpression(args, t7), t2, t6);
+              $async$goto = $function instanceof A.SassString ? 3 : 4;
+              break;
+            case 3:
+              // then
+              A.warnForDeprecation(string$.Passina + $function.toString$0(0) + "))", B.Deprecation_gkc);
+              callableNode = t1._async_evaluate$_callableNode;
+              t2 = $function._string$_text;
+              t3 = callableNode.get$span(callableNode);
+              t1 = t1.visitFunctionExpression$1(new A.FunctionExpression(null, A.stringReplaceAllUnchecked(t2, "_", "-"), t2, invocation, t3));
+              $async$goto = 5;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$1);
+            case 5:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              t2 = $function.assertFunction$1("function");
+              t3 = t1._async_evaluate$_callableNode;
+              t3.toString;
+              $async$goto = 6;
+              return A._asyncAwait(t1._async_evaluate$_runFunctionCallable$3(invocation, t2.callable, t3), $async$call$1);
+            case 6:
+              // returning from await.
+              t3 = $async$result;
+              $async$returnValue = t3;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 258
+  };
+  A._EvaluateVisitor_closure23.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_EvaluateVisitor_closure0($arguments);
+    },
+    $call$body$_EvaluateVisitor_closure0($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, withMap, t2, values, configuration, t3, t1, url;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.getInterceptor$asx($arguments);
+              url = A.Uri_parse(t1.$index($arguments, 0).assertString$1("url")._string$_text);
+              t1 = t1.$index($arguments, 1).get$realNull();
+              withMap = t1 == null ? null : t1.assertMap$1("with")._map$_contents;
+              t1 = $async$self.$this;
+              t2 = t1._async_evaluate$_callableNode;
+              t2.toString;
+              if (withMap != null) {
+                values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue);
+                withMap.forEach$1(0, new A._EvaluateVisitor__closure3(values, t2.get$span(t2), t2));
+                configuration = new A.ExplicitConfiguration(t2, values, null);
+              } else
+                configuration = B.Configuration_Map_empty_null;
+              t3 = t2.get$span(t2);
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_loadModule$7$baseUrl$configuration$namesInErrors(url, "load-css()", t2, new A._EvaluateVisitor__closure4(t1), t3.get$sourceUrl(t3), configuration, true), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate$_assertConfigurationIsEmpty$2$nameInError(configuration, true);
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 167
+  };
+  A._EvaluateVisitor__closure3.prototype = {
+    call$2(variable, value) {
+      var t1 = variable.assertString$1("with key"),
+        $name = A.stringReplaceAllUnchecked(t1._string$_text, "_", "-");
+      t1 = this.values;
+      if (t1.containsKey$1($name))
+        throw A.wrapException("The variable $" + $name + " was configured twice.");
+      t1.$indexSet(0, $name, new A.ConfiguredValue(value, this.span, this.callableNode));
+    },
+    $signature: 102
+  };
+  A._EvaluateVisitor__closure4.prototype = {
+    call$2(module, _) {
+      var t1 = this.$this;
+      return t1._async_evaluate$_combineCss$2$clone(module, true).accept$1(t1);
+    },
+    $signature: 354
+  };
+  A._EvaluateVisitor_closure24.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_EvaluateVisitor_closure($arguments);
+    },
+    $call$body$_EvaluateVisitor_closure($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, callableNode, t2, t3, t4, t5, t1, mixin, args;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.getInterceptor$asx($arguments);
+              mixin = t1.$index($arguments, 0);
+              args = type$.SassArgumentList._as(t1.$index($arguments, 1));
+              t1 = $async$self.$this;
+              callableNode = t1._async_evaluate$_callableNode;
+              t2 = callableNode.get$span(callableNode);
+              t3 = callableNode.get$span(callableNode);
+              t4 = type$.Expression;
+              t5 = A.List_List$unmodifiable(B.List_empty9, t4);
+              t4 = A.ConstantMap_ConstantMap$from(B.Map_empty6, type$.String, t4);
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_applyMixin$5(mixin.assertMixin$1("mixin").callable, t1._async_evaluate$_environment._async_environment$_content, new A.ArgumentInvocation(t5, t4, new A.ValueExpression(args, t3), null, t2), callableNode, callableNode), $async$call$1);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 167
+  };
+  A._EvaluateVisitor_run_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet),
+        $async$returnValue, $async$self = this, module, t1, t2, _0_0, url;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node;
+              t2 = t1.span;
+              _0_0 = t2.get$sourceUrl(t2);
+              url = null;
+              if (_0_0 != null) {
+                url = _0_0;
+                t2 = $async$self.$this;
+                t2._async_evaluate$_activeModules.$indexSet(0, url, null);
+                t2._async_evaluate$_loadedUrls.add$1(0, url);
+              }
+              t2 = $async$self.$this;
+              $async$goto = 3;
+              return A._asyncAwait(t2._async_evaluate$_addExceptionTrace$1$1(new A._EvaluateVisitor_run__closure0(t2, $async$self.importer, t1), type$.Module_AsyncCallable), $async$call$0);
+            case 3:
+              // returning from await.
+              module = $async$result;
+              $async$returnValue = new A._Record_2_loadedUrls_stylesheet(t2._async_evaluate$_loadedUrls, t2._async_evaluate$_combineCss$1(module));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 353
+  };
+  A._EvaluateVisitor_run__closure0.prototype = {
+    call$0() {
+      return this.$this._async_evaluate$_execute$2(this.importer, this.node);
+    },
+    $signature: 352
+  };
+  A._EvaluateVisitor__loadModule_closure1.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_1.builtInModule, false);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__loadModule_closure2.prototype = {
+    call$0() {
+      return this.$call$body$_EvaluateVisitor__loadModule_closure();
+    },
+    $call$body$_EvaluateVisitor__loadModule_closure() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$handler = 1, $async$currentError, $async$next = [], $async$self = this, canonicalUrl, oldInDependency, isDependency, t4, message, t1, stylesheet, importer, t2, t3, _1_0, $async$temp1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              stylesheet = null;
+              importer = null;
+              t2 = $async$self.$this;
+              t3 = $async$self.nodeWithSpan;
+              $async$goto = 2;
+              return A._asyncAwait(t2._async_evaluate$_loadStylesheet$3$baseUrl($async$self.url.toString$0(0), t3.get$span(t3), $async$self.baseUrl), $async$call$0);
+            case 2:
+              // returning from await.
+              _1_0 = $async$result;
+              stylesheet = _1_0._0;
+              importer = _1_0._1;
+              isDependency = _1_0._2;
+              t4 = stylesheet.span;
+              canonicalUrl = t4.get$sourceUrl(t4);
+              if (canonicalUrl != null) {
+                t4 = t2._async_evaluate$_activeModules;
+                if (t4.containsKey$1(canonicalUrl)) {
+                  if ($async$self.namesInErrors) {
+                    t1 = canonicalUrl;
+                    t3 = $.$get$context();
+                    t1.toString;
+                    message = "Module loop: " + t3.prettyUri$1(t1) + " is already being loaded.";
+                  } else
+                    message = string$.Modulel;
+                  t1 = A.NullableExtension_andThen(t4.$index(0, canonicalUrl), new A._EvaluateVisitor__loadModule__closure1(t2, message));
+                  throw A.wrapException(t1 == null ? t2._async_evaluate$_exception$1(message) : t1);
+                } else
+                  t4.$indexSet(0, canonicalUrl, t3);
+              }
+              t4 = t2._async_evaluate$_modules.containsKey$1(canonicalUrl);
+              oldInDependency = t2._async_evaluate$_inDependency;
+              t2._async_evaluate$_inDependency = isDependency;
+              t1.module = null;
+              $async$handler = 3;
+              $async$temp1 = t1;
+              $async$goto = 6;
+              return A._asyncAwait(t2._async_evaluate$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, $async$self.configuration, $async$self.namesInErrors, t3), $async$call$0);
+            case 6:
+              // returning from await.
+              $async$temp1.module = $async$result;
+              $async$next.push(5);
+              // goto finally
+              $async$goto = 4;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [1];
+            case 4:
+              // finally
+              $async$handler = 1;
+              t2._async_evaluate$_activeModules.remove$1(0, canonicalUrl);
+              t2._async_evaluate$_inDependency = oldInDependency;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 5:
+              // after finally
+              $async$goto = 7;
+              return A._asyncAwait(t2._addExceptionSpanAsync$1$3$addStackFrame(t3, new A._EvaluateVisitor__loadModule__closure2(t1, $async$self.callback, !t4), false, type$.void), $async$call$0);
+            case 7:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+            case 1:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__loadModule__closure1.prototype = {
+    call$1(previousLoad) {
+      return this.$this._async_evaluate$_multiSpanException$3(this.message, "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 81
+  };
+  A._EvaluateVisitor__loadModule__closure2.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_0.module, this.firstLoad);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__execute_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t3, t4, t5, t6, t1, oldImporter, oldStylesheet, oldRoot, oldPreModuleComments, oldParent, oldEndOfImports, oldOutOfOrderImports, oldExtensionStore, t2, oldStyleRule, oldMediaQueries, oldDeclarationName, oldInUnknownAtRule, oldInKeyframes, oldConfiguration;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              oldImporter = t1._async_evaluate$_importer;
+              oldStylesheet = t1._async_evaluate$__stylesheet;
+              oldRoot = t1._async_evaluate$__root;
+              oldPreModuleComments = t1._async_evaluate$_preModuleComments;
+              oldParent = t1._async_evaluate$__parent;
+              oldEndOfImports = t1._async_evaluate$__endOfImports;
+              oldOutOfOrderImports = t1._async_evaluate$_outOfOrderImports;
+              oldExtensionStore = t1._async_evaluate$__extensionStore;
+              t2 = t1._async_evaluate$_atRootExcludingStyleRule;
+              oldStyleRule = t2 ? null : t1._async_evaluate$_styleRuleIgnoringAtRoot;
+              oldMediaQueries = t1._async_evaluate$_mediaQueries;
+              oldDeclarationName = t1._async_evaluate$_declarationName;
+              oldInUnknownAtRule = t1._async_evaluate$_inUnknownAtRule;
+              oldInKeyframes = t1._async_evaluate$_inKeyframes;
+              oldConfiguration = t1._async_evaluate$_configuration;
+              t1._async_evaluate$_importer = $async$self.importer;
+              t3 = t1._async_evaluate$__stylesheet = $async$self.stylesheet;
+              t4 = t3.span;
+              t5 = t1._async_evaluate$__parent = t1._async_evaluate$__root = A.ModifiableCssStylesheet$(t4);
+              t1._async_evaluate$__endOfImports = 0;
+              t1._async_evaluate$_outOfOrderImports = null;
+              t1._async_evaluate$__extensionStore = $async$self.extensionStore;
+              t1._async_evaluate$_declarationName = t1._async_evaluate$_mediaQueries = t1._async_evaluate$_styleRuleIgnoringAtRoot = null;
+              t1._async_evaluate$_inKeyframes = t1._async_evaluate$_atRootExcludingStyleRule = t1._async_evaluate$_inUnknownAtRule = false;
+              t6 = $async$self.configuration;
+              if (t6 != null)
+                t1._async_evaluate$_configuration = t6;
+              $async$goto = 2;
+              return A._asyncAwait(t1.visitStylesheet$1(t3), $async$call$0);
+            case 2:
+              // returning from await.
+              t3 = t1._async_evaluate$_outOfOrderImports == null ? t5 : new A.CssStylesheet(new A.UnmodifiableListView(t1._async_evaluate$_addOutOfOrderImports$0(), type$.UnmodifiableListView_CssNode), t4);
+              $async$self.css.__late_helper$_value = t3;
+              $async$self.preModuleComments.__late_helper$_value = t1._async_evaluate$_preModuleComments;
+              t1._async_evaluate$_importer = oldImporter;
+              t1._async_evaluate$__stylesheet = oldStylesheet;
+              t1._async_evaluate$__root = oldRoot;
+              t1._async_evaluate$_preModuleComments = oldPreModuleComments;
+              t1._async_evaluate$__parent = oldParent;
+              t1._async_evaluate$__endOfImports = oldEndOfImports;
+              t1._async_evaluate$_outOfOrderImports = oldOutOfOrderImports;
+              t1._async_evaluate$__extensionStore = oldExtensionStore;
+              t1._async_evaluate$_styleRuleIgnoringAtRoot = oldStyleRule;
+              t1._async_evaluate$_mediaQueries = oldMediaQueries;
+              t1._async_evaluate$_declarationName = oldDeclarationName;
+              t1._async_evaluate$_inUnknownAtRule = oldInUnknownAtRule;
+              t1._async_evaluate$_atRootExcludingStyleRule = t2;
+              t1._async_evaluate$_inKeyframes = oldInKeyframes;
+              t1._async_evaluate$_configuration = oldConfiguration;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__combineCss_closure1.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 134
+  };
+  A._EvaluateVisitor__combineCss_closure2.prototype = {
+    call$1(target) {
+      return !this.selectors.contains$1(0, target);
+    },
+    $signature: 14
+  };
+  A._EvaluateVisitor__combineCss_visitModule0.prototype = {
+    call$1(module) {
+      var t1, t2, t3, t4, _i, upstream, _1_0, statements, index, _this = this;
+      if (!_this.seen.add$1(0, module))
+        return;
+      if (_this.clone)
+        module = module.cloneCss$0();
+      for (t1 = module.get$upstream(), t2 = t1.length, t3 = _this.css, t4 = _this.imports, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        upstream = t1[_i];
+        if (upstream.get$transitivelyContainsCss()) {
+          _1_0 = module.get$preModuleComments().$index(0, upstream);
+          if (_1_0 != null)
+            B.JSArray_methods.addAll$1(t3.length === 0 ? t4 : t3, _1_0);
+          _this.call$1(upstream);
+        }
+      }
+      _this.sorted.addFirst$1(module);
+      t1 = module.get$css(module);
+      statements = t1.get$children(t1);
+      index = _this.$this._async_evaluate$_indexAfterImports$1(statements);
+      t1 = J.getInterceptor$ax(statements);
+      B.JSArray_methods.addAll$1(t4, t1.getRange$2(statements, 0, index));
+      B.JSArray_methods.addAll$1(t3, t1.getRange$2(statements, index, t1.get$length(statements)));
+    },
+    $signature: 344
+  };
+  A._EvaluateVisitor__extendModules_closure1.prototype = {
+    call$1(target) {
+      return !this.originalSelectors.contains$1(0, target);
+    },
+    $signature: 14
+  };
+  A._EvaluateVisitor__extendModules_closure2.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_ExtensionStore);
+    },
+    $signature: 169
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure5.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__parent, "__parent");
+              t1._async_evaluate$__parent = $async$self.newParent;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_environment.scope$1$2$when(callback, $async$self.node.hasDeclarations, type$.void), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate$__parent = t2;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure6.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, oldAtRootExcludingStyleRule;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              oldAtRootExcludingStyleRule = t1._async_evaluate$_atRootExcludingStyleRule;
+              t1._async_evaluate$_atRootExcludingStyleRule = true;
+              $async$goto = 2;
+              return A._asyncAwait($async$self.innerScope.call$1(callback), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure7.prototype = {
+    call$1(callback) {
+      return this.$this._async_evaluate$_withMediaQueries$1$3(null, null, new A._EvaluateVisitor__scopeForAtRoot__closure0(this.innerScope, callback), type$.Null);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot__closure0.prototype = {
+    call$0() {
+      return this.innerScope.call$1(this.callback);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure8.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, wasInKeyframes;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              wasInKeyframes = t1._async_evaluate$_inKeyframes;
+              t1._async_evaluate$_inKeyframes = false;
+              $async$goto = 2;
+              return A._asyncAwait($async$self.innerScope.call$1(callback), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate$_inKeyframes = wasInKeyframes;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure9.prototype = {
+    call$1($parent) {
+      return $parent instanceof A.ModifiableCssAtRule;
+    },
+    $signature: 171
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure10.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, wasInUnknownAtRule;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              wasInUnknownAtRule = t1._async_evaluate$_inUnknownAtRule;
+              t1._async_evaluate$_inUnknownAtRule = false;
+              $async$goto = 2;
+              return A._asyncAwait($async$self.innerScope.call$1(callback), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate$_inUnknownAtRule = wasInUnknownAtRule;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor_visitContentRule_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$returnValue, $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.content.declaration.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 6:
+              // returning from await.
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitDeclaration_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._box_0.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitEachRule_closure2.prototype = {
+    call$1(value) {
+      var t1 = this.$this,
+        t2 = this.nodeWithSpan;
+      return t1._async_evaluate$_environment.setLocalVariable$3(this._box_0.variable, t1._async_evaluate$_withoutSlash$2(value, t2), t2);
+    },
+    $signature: 58
+  };
+  A._EvaluateVisitor_visitEachRule_closure3.prototype = {
+    call$1(value) {
+      return this.$this._async_evaluate$_setMultipleVariables$3(this._box_0.variables, value, this.nodeWithSpan);
+    },
+    $signature: 58
+  };
+  A._EvaluateVisitor_visitEachRule_closure4.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      return t1._async_evaluate$_handleReturn$2(_this.list.get$asList(), new A._EvaluateVisitor_visitEachRule__closure0(t1, _this.setVariables, _this.node));
+    },
+    $signature: 66
+  };
+  A._EvaluateVisitor_visitEachRule__closure0.prototype = {
+    call$1(element) {
+      var t1;
+      this.setVariables.call$1(element);
+      t1 = this.$this;
+      return t1._async_evaluate$_handleReturn$2(this.node.children, new A._EvaluateVisitor_visitEachRule___closure0(t1));
+    },
+    $signature: 337
+  };
+  A._EvaluateVisitor_visitEachRule___closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 86
+  };
+  A._EvaluateVisitor_visitAtRule_closure2.prototype = {
+    call$1(value) {
+      return this.$this._async_evaluate$_interpolationToValue$3$trim$warnForColor(value, true, true);
+    },
+    $signature: 333
+  };
+  A._EvaluateVisitor_visitAtRule_closure3.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, _i, t1, styleRule;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              styleRule = t1._async_evaluate$_atRootExcludingStyleRule ? null : t1._async_evaluate$_styleRuleIgnoringAtRoot;
+              $async$goto = styleRule == null || t1._async_evaluate$_inKeyframes || J.$eq$($async$self.name.value, "font-face") ? 2 : 4;
+              break;
+            case 2:
+              // then
+              t2 = $async$self.children, t3 = t2.length, _i = 0;
+            case 5:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              $async$goto = 8;
+              return A._asyncAwait(t2[_i].accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+            case 6:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 5;
+              break;
+            case 7:
+              // after for
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              $async$goto = 9;
+              return A._asyncAwait(t1._async_evaluate$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$(styleRule._style_rule$_selector, styleRule.span, false, styleRule.originalSelector), new A._EvaluateVisitor_visitAtRule__closure0(t1, $async$self.children), false, type$.ModifiableCssStyleRule, type$.Null), $async$call$0);
+            case 9:
+              // returning from await.
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitAtRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitAtRule_closure4.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitForRule_closure4.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassNumber),
+        $async$returnValue, $async$self = this;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self.node.from.accept$1($async$self.$this), $async$call$0);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result.assertNumber$0();
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 172
+  };
+  A._EvaluateVisitor_visitForRule_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassNumber),
+        $async$returnValue, $async$self = this;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self.node.to.accept$1($async$self.$this), $async$call$0);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result.assertNumber$0();
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 172
+  };
+  A._EvaluateVisitor_visitForRule_closure6.prototype = {
+    call$0() {
+      return this.fromNumber.assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure7.prototype = {
+    call$0() {
+      var t1 = this.fromNumber;
+      return this.toNumber.coerce$2(t1.get$numeratorUnits(t1), t1.get$denominatorUnits(t1)).assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure8.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, i, t3, t4, t5, t6, t7, t8, _0_0, t1, t2, nodeWithSpan;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.node;
+              nodeWithSpan = t1._async_evaluate$_expressionNode$1(t2.from);
+              i = $async$self.from, t3 = $async$self._box_0, t4 = $async$self.direction, t5 = t2.variable, t6 = $async$self.fromNumber, t2 = t2.children;
+            case 3:
+              // for condition
+              if (!(i !== t3.to)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              t7 = t1._async_evaluate$_environment;
+              t8 = t6.get$numeratorUnits(t6);
+              t7.setLocalVariable$3(t5, A.SassNumber_SassNumber$withUnits(i, t6.get$denominatorUnits(t6), t8), nodeWithSpan);
+              $async$goto = 6;
+              return A._asyncAwait(t1._async_evaluate$_handleReturn$2(t2, new A._EvaluateVisitor_visitForRule__closure0(t1)), $async$call$0);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              i += t4;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 66
+  };
+  A._EvaluateVisitor_visitForRule__closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 86
+  };
+  A._EvaluateVisitor_visitForwardRule_closure1.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._async_evaluate$_registerCommentsForModule$1(module);
+      this.$this._async_evaluate$_environment.forwardModule$2(module, this.node);
+    },
+    $signature: 116
+  };
+  A._EvaluateVisitor_visitForwardRule_closure2.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._async_evaluate$_registerCommentsForModule$1(module);
+      this.$this._async_evaluate$_environment.forwardModule$2(module, this.node);
+    },
+    $signature: 116
+  };
+  A._EvaluateVisitor__registerCommentsForModule_closure0.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_CssComment);
+    },
+    $signature: 173
+  };
+  A._EvaluateVisitor_visitIfRule_closure0.prototype = {
+    call$1(clause) {
+      var t1 = this.$this;
+      return t1._async_evaluate$_environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitIfRule__closure0(t1, clause), true, clause.hasDeclarations, type$.nullable_Value);
+    },
+    $signature: 325
+  };
+  A._EvaluateVisitor_visitIfRule__closure0.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1._async_evaluate$_handleReturn$2(this.clause.children, new A._EvaluateVisitor_visitIfRule___closure0(t1));
+    },
+    $signature: 66
+  };
+  A._EvaluateVisitor_visitIfRule___closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 86
+  };
+  A._EvaluateVisitor__visitDynamicImport_closure0.prototype = {
+    call$0() {
+      return this.$call$body$_EvaluateVisitor__visitDynamicImport_closure();
+    },
+    $call$body$_EvaluateVisitor__visitDynamicImport_closure() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, t1, t2, _0_0, stylesheet, importer, isDependency, t3, url, oldImporter, oldInDependency, loadsUserDefinedModules, children, t4, t5, t6, t7, t8, t9, t10, environment, module, visitor, _box_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              _box_0.isDependency = _box_0.importer = _box_0.stylesheet = null;
+              t1 = $async$self.$this;
+              t2 = $async$self.$import;
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_evaluate$_loadStylesheet$3$forImport(t2.urlString, t2.span, true), $async$call$0);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              stylesheet = _box_0.stylesheet = _0_0._0;
+              importer = _0_0._1;
+              _box_0.importer = importer;
+              isDependency = _0_0._2;
+              _box_0.isDependency = isDependency;
+              t3 = stylesheet.span;
+              url = t3.get$sourceUrl(t3);
+              if (url != null) {
+                t3 = t1._async_evaluate$_activeModules;
+                if (t3.containsKey$1(url)) {
+                  t2 = A.NullableExtension_andThen(t3.$index(0, url), new A._EvaluateVisitor__visitDynamicImport__closure3(t1));
+                  throw A.wrapException(t2 == null ? t1._async_evaluate$_exception$1("This file is already being loaded.") : t2);
+                }
+                t3.$indexSet(0, url, t2);
+              }
+              t2 = stylesheet._uses;
+              t3 = type$.UnmodifiableListView_UseRule;
+              $async$goto = new A.UnmodifiableListView(t2, t3).get$length(0) === 0 && new A.UnmodifiableListView(stylesheet._forwards, type$.UnmodifiableListView_ForwardRule).get$length(0) === 0 ? 4 : 5;
+              break;
+            case 4:
+              // then
+              oldImporter = t1._async_evaluate$_importer;
+              t2 = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__stylesheet, "_stylesheet");
+              oldInDependency = t1._async_evaluate$_inDependency;
+              t1._async_evaluate$_importer = importer;
+              t1._async_evaluate$__stylesheet = stylesheet;
+              t1._async_evaluate$_inDependency = isDependency;
+              $async$goto = 6;
+              return A._asyncAwait(t1.visitStylesheet$1(stylesheet), $async$call$0);
+            case 6:
+              // returning from await.
+              t1._async_evaluate$_importer = oldImporter;
+              t1._async_evaluate$__stylesheet = t2;
+              t1._async_evaluate$_inDependency = oldInDependency;
+              t1._async_evaluate$_activeModules.remove$1(0, url);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 5:
+              // join
+              t2 = new A.UnmodifiableListView(t2, t3);
+              if (!t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure4())) {
+                t2 = new A.UnmodifiableListView(stylesheet._forwards, type$.UnmodifiableListView_ForwardRule);
+                loadsUserDefinedModules = t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure5());
+              } else
+                loadsUserDefinedModules = true;
+              children = A._Cell$();
+              t2 = t1._async_evaluate$_environment;
+              t3 = type$.String;
+              t4 = type$.Module_AsyncCallable;
+              t5 = type$.AstNode;
+              t6 = A._setArrayType([], type$.JSArray_Module_AsyncCallable);
+              t7 = t2._async_environment$_variables;
+              t7 = A._setArrayType(t7.slice(0), A._arrayInstanceType(t7));
+              t8 = t2._async_environment$_variableNodes;
+              t8 = A._setArrayType(t8.slice(0), A._arrayInstanceType(t8));
+              t9 = t2._async_environment$_functions;
+              t9 = A._setArrayType(t9.slice(0), A._arrayInstanceType(t9));
+              t10 = t2._async_environment$_mixins;
+              t10 = A._setArrayType(t10.slice(0), A._arrayInstanceType(t10));
+              environment = A.AsyncEnvironment$_(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), A.LinkedHashMap_LinkedHashMap$_empty(t3, t5), A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t2._async_environment$_importedModules, null, null, t6, t7, t8, t9, t10, t2._async_environment$_content);
+              $async$goto = 7;
+              return A._asyncAwait(t1._async_evaluate$_withEnvironment$1$2(environment, new A._EvaluateVisitor__visitDynamicImport__closure6(_box_0, t1, loadsUserDefinedModules, environment, children), type$.Null), $async$call$0);
+            case 7:
+              // returning from await.
+              module = environment.toDummyModule$0();
+              t1._async_evaluate$_environment.importForwards$1(module);
+              $async$goto = loadsUserDefinedModules ? 8 : 9;
+              break;
+            case 8:
+              // then
+              $async$goto = module.transitivelyContainsCss ? 10 : 11;
+              break;
+            case 10:
+              // then
+              $async$goto = 12;
+              return A._asyncAwait(t1._async_evaluate$_combineCss$2$clone(module, module.transitivelyContainsExtensions).accept$1(t1), $async$call$0);
+            case 12:
+              // returning from await.
+            case 11:
+              // join
+              visitor = new A._ImportedCssVisitor0(t1);
+              for (t2 = J.get$iterator$ax(children._readLocal$0()); t2.moveNext$0();)
+                t2.get$current(t2).accept$1(visitor);
+            case 9:
+              // join
+              t1._async_evaluate$_activeModules.remove$1(0, url);
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure3.prototype = {
+    call$1(previousLoad) {
+      return this.$this._async_evaluate$_multiSpanException$3("This file is already being loaded.", "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 81
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure4.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 174
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure5.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 175
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure6.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t7, t8, t1, oldImporter, t2, t3, t4, t5, oldOutOfOrderImports, oldConfiguration, oldInDependency, t6;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              oldImporter = t1._async_evaluate$_importer;
+              t2 = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__stylesheet, "_stylesheet");
+              t3 = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__root, "_root");
+              t4 = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__parent, "__parent");
+              t5 = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__endOfImports, "_endOfImports");
+              oldOutOfOrderImports = t1._async_evaluate$_outOfOrderImports;
+              oldConfiguration = t1._async_evaluate$_configuration;
+              oldInDependency = t1._async_evaluate$_inDependency;
+              t6 = $async$self._box_0;
+              t1._async_evaluate$_importer = t6.importer;
+              t7 = t6.stylesheet;
+              t1._async_evaluate$__stylesheet = t7;
+              t8 = $async$self.loadsUserDefinedModules;
+              if (t8) {
+                t7 = A.ModifiableCssStylesheet$(t7.span);
+                t1._async_evaluate$__root = t7;
+                t1._async_evaluate$__parent = t1._async_evaluate$_assertInModule$2(t7, "_root");
+                t1._async_evaluate$__endOfImports = 0;
+                t1._async_evaluate$_outOfOrderImports = null;
+              }
+              t1._async_evaluate$_inDependency = t6.isDependency;
+              t7 = new A.UnmodifiableListView(t6.stylesheet._forwards, type$.UnmodifiableListView_ForwardRule);
+              if (!t7.get$isEmpty(t7))
+                t1._async_evaluate$_configuration = $async$self.environment.toImplicitConfiguration$0();
+              $async$goto = 2;
+              return A._asyncAwait(t1.visitStylesheet$1(t6.stylesheet), $async$call$0);
+            case 2:
+              // returning from await.
+              t6 = t8 ? t1._async_evaluate$_addOutOfOrderImports$0() : A._setArrayType([], type$.JSArray_ModifiableCssNode);
+              $async$self.children.__late_helper$_value = t6;
+              t1._async_evaluate$_importer = oldImporter;
+              t1._async_evaluate$__stylesheet = t2;
+              if (t8) {
+                t1._async_evaluate$__root = t3;
+                t1._async_evaluate$__parent = t4;
+                t1._async_evaluate$__endOfImports = t5;
+                t1._async_evaluate$_outOfOrderImports = oldOutOfOrderImports;
+              }
+              t1._async_evaluate$_configuration = oldConfiguration;
+              t1._async_evaluate$_inDependency = oldInDependency;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__applyMixin_closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_environment.asMixin$1(new A._EvaluateVisitor__applyMixin__closure2(t1, $async$self.$arguments, $async$self.mixin, $async$self.nodeWithSpanWithoutContent)), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 2;
+              return A._asyncAwait($async$self.$this._async_evaluate$_runBuiltInCallable$3($async$self.$arguments, $async$self.mixin, $async$self.nodeWithSpanWithoutContent), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_environment.withContent$2($async$self.contentCallable, new A._EvaluateVisitor__applyMixin__closure1(t1, $async$self.mixin, $async$self.nodeWithSpanWithoutContent)), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__applyMixin__closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_environment.asMixin$1(new A._EvaluateVisitor__applyMixin___closure0(t1, $async$self.mixin, $async$self.nodeWithSpanWithoutContent)), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin___closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, t2, t3, t4, t5, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.mixin.declaration.children, t2 = t1.length, t3 = $async$self.$this, t4 = $async$self.nodeWithSpanWithoutContent, t5 = type$.nullable_Value, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t3._async_evaluate$_addErrorSpan$1$2(t4, new A._EvaluateVisitor__applyMixin____closure0(t3, t1[_i]), t5), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin____closure0.prototype = {
+    call$0() {
+      return this.statement.accept$1(this.$this);
+    },
+    $signature: 66
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure2.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate$_environment.getMixin$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 99
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure3.prototype = {
+    call$1($content) {
+      var t1 = this.$this;
+      return new A.UserDefinedCallable($content, t1._async_evaluate$_environment.closure$0(), t1._async_evaluate$_inDependency, type$.UserDefinedCallable_AsyncEnvironment);
+    },
+    $signature: 323
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure4.prototype = {
+    call$0() {
+      return this.node.get$spanWithoutContent();
+    },
+    $signature: 26
+  };
+  A._EvaluateVisitor_visitMediaRule_closure2.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._async_evaluate$_mergeMediaQueries$2(mediaQueries, this.queries);
+    },
+    $signature: 79
+  };
+  A._EvaluateVisitor_visitMediaRule_closure3.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.mergedQueries;
+              if (t2 == null)
+                t2 = $async$self.queries;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_withMediaQueries$1$3(t2, $async$self.mergedSources, new A._EvaluateVisitor_visitMediaRule__closure0(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitMediaRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, _i, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate$_atRootExcludingStyleRule ? null : t1._async_evaluate$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitMediaRule___closure0(t1, $async$self.node), false, type$.ModifiableCssStyleRule, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.length, _i = 0;
+            case 6:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              $async$goto = 9;
+              return A._asyncAwait(t2[_i].accept$1(t1), $async$call$0);
+            case 9:
+              // returning from await.
+            case 7:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitMediaRule___closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitMediaRule_closure4.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitStyleRule_closure4.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitStyleRule_closure5.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitStyleRule_closure7.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_withStyleRule$1$2($async$self.rule, new A._EvaluateVisitor_visitStyleRule__closure0(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitStyleRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitStyleRule_closure6.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitStyleRule_closure8.prototype = {
+    call$1(child) {
+      return child instanceof A.ModifiableCssComment;
+    },
+    $signature: 111
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, _i, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate$_atRootExcludingStyleRule ? null : t1._async_evaluate$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate$_withParent$2$2(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitSupportsRule__closure0(t1, $async$self.node), type$.ModifiableCssStyleRule, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.length, _i = 0;
+            case 6:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              $async$goto = 9;
+              return A._asyncAwait(t2[_i].accept$1(t1), $async$call$0);
+            case 9:
+              // returning from await.
+            case 7:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitSupportsRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor__visitSupportsCondition_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, $async$temp1, $async$temp2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self._box_0;
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait(t1._evaluateToCss$1(t2.declaration.name), $async$call$0);
+            case 3:
+              // returning from await.
+              t3 = $async$temp1.S($async$result);
+              t4 = t2.declaration.get$isCustomProperty() ? "" : " ";
+              $async$temp1 = "(" + t3 + ":" + t4;
+              $async$temp2 = A;
+              $async$goto = 4;
+              return A._asyncAwait(t1._evaluateToCss$1(t2.declaration.value), $async$call$0);
+            case 4:
+              // returning from await.
+              $async$returnValue = $async$temp1 + $async$temp2.S($async$result) + ")";
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 177
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure2.prototype = {
+    call$0() {
+      var t1 = this.$this._async_evaluate$_environment,
+        t2 = this._box_0.override;
+      t1.setVariable$4$global(this.node.name, t2.value, t2.assignmentNode, true);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure3.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate$_environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure4.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.node;
+      t1._async_evaluate$_environment.setVariable$5$global$namespace(t2.name, this.value, t1._async_evaluate$_expressionNode$1(t2.expression), t2.isGlobal, t2.namespace);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitUseRule_closure0.prototype = {
+    call$2(module, firstLoad) {
+      var t1, t2, t3, _0_0, t4, t5, span;
+      if (firstLoad)
+        this.$this._async_evaluate$_registerCommentsForModule$1(module);
+      t1 = this.$this._async_evaluate$_environment;
+      t2 = this.node;
+      t3 = t2.namespace;
+      if (t3 == null) {
+        t1._async_environment$_globalModules.$indexSet(0, module, t2);
+        t1._async_environment$_allModules.push(module);
+        _0_0 = A.IterableExtension_firstWhereOrNull(J.get$keys$z(B.JSArray_methods.get$first(t1._async_environment$_variables)), module.get$variables().get$containsKey());
+        if (_0_0 != null)
+          A.throwExpression(A.SassScriptException$(string$.This_ma + _0_0 + '".', null));
+      } else {
+        t4 = t1._async_environment$_modules;
+        if (t4.containsKey$1(t3)) {
+          t5 = t1._async_environment$_namespaceNodes.$index(0, t3);
+          span = t5 == null ? null : t5.span;
+          t5 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (span != null)
+            t5.$indexSet(0, span, "original @use");
+          A.throwExpression(A.MultiSpanSassScriptException$(string$.There_ + t3 + '".', "new @use", t5));
+        }
+        t4.$indexSet(0, t3, module);
+        t1._async_environment$_namespaceNodes.$indexSet(0, t3, t2);
+        t1._async_environment$_allModules.push(module);
+      }
+    },
+    $signature: 116
+  };
+  A._EvaluateVisitor_visitWarnRule_closure0.prototype = {
+    call$0() {
+      return this.node.expression.accept$1(this.$this);
+    },
+    $signature: 69
+  };
+  A._EvaluateVisitor_visitWhileRule_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node, t2 = t1.condition, t3 = $async$self.$this, t1 = t1.children;
+            case 3:
+              // for condition
+              $async$goto = 5;
+              return A._asyncAwait(t2.accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+              if (!$async$result.get$isTruthy()) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t3._async_evaluate$_handleReturn$2(t1, new A._EvaluateVisitor_visitWhileRule__closure0(t3)), $async$call$0);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 4:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 66
+  };
+  A._EvaluateVisitor_visitWhileRule__closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 86
+  };
+  A._EvaluateVisitor_visitBinaryOperationExpression_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t3, t1, t2, left, $async$temp1, $async$temp2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node;
+              t2 = $async$self.$this;
+              $async$goto = 3;
+              return A._asyncAwait(t1.left.accept$1(t2), $async$call$0);
+            case 3:
+              // returning from await.
+              left = $async$result;
+            case 4:
+              // switch
+              switch (t1.operator) {
+                case B.BinaryOperator_wdM:
+                  // goto case
+                  $async$goto = 6;
+                  break;
+                case B.BinaryOperator_qNM:
+                  // goto case
+                  $async$goto = 7;
+                  break;
+                case B.BinaryOperator_eDt:
+                  // goto case
+                  $async$goto = 8;
+                  break;
+                case B.BinaryOperator_g8k:
+                  // goto case
+                  $async$goto = 9;
+                  break;
+                case B.BinaryOperator_icU:
+                  // goto case
+                  $async$goto = 10;
+                  break;
+                case B.BinaryOperator_bEa:
+                  // goto case
+                  $async$goto = 11;
+                  break;
+                case B.BinaryOperator_oEm:
+                  // goto case
+                  $async$goto = 12;
+                  break;
+                case B.BinaryOperator_miq:
+                  // goto case
+                  $async$goto = 13;
+                  break;
+                case B.BinaryOperator_SPQ:
+                  // goto case
+                  $async$goto = 14;
+                  break;
+                case B.BinaryOperator_u15:
+                  // goto case
+                  $async$goto = 15;
+                  break;
+                case B.BinaryOperator_SjO:
+                  // goto case
+                  $async$goto = 16;
+                  break;
+                case B.BinaryOperator_2No:
+                  // goto case
+                  $async$goto = 17;
+                  break;
+                case B.BinaryOperator_U77:
+                  // goto case
+                  $async$goto = 18;
+                  break;
+                case B.BinaryOperator_KNx:
+                  // goto case
+                  $async$goto = 19;
+                  break;
+                default:
+                  // goto default
+                  $async$goto = 20;
+                  break;
+              }
+              break;
+            case 6:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$goto = 21;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 21:
+              // returning from await.
+              t1 = $async$result;
+              t1 = new A.SassString(A.serializeValue(left, false, true) + "=" + A.serializeValue(t1, false, true), false);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 7:
+              // case
+              $async$goto = left.get$isTruthy() ? 22 : 24;
+              break;
+            case 22:
+              // then
+              t1 = left;
+              // goto join
+              $async$goto = 23;
+              break;
+            case 24:
+              // else
+              t1 = t1.right.accept$1(t2);
+              $async$goto = 25;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 25:
+              // returning from await.
+              t1 = $async$result;
+            case 23:
+              // join
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 8:
+              // case
+              $async$goto = left.get$isTruthy() ? 26 : 28;
+              break;
+            case 26:
+              // then
+              t1 = t1.right.accept$1(t2);
+              $async$goto = 29;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 29:
+              // returning from await.
+              t1 = $async$result;
+              // goto join
+              $async$goto = 27;
+              break;
+            case 28:
+              // else
+              t1 = left;
+            case 27:
+              // join
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 9:
+              // case
+              $async$temp1 = left;
+              $async$goto = 30;
+              return A._asyncAwait(t1.right.accept$1(t2), $async$call$0);
+            case 30:
+              // returning from await.
+              t1 = $async$temp1.$eq(0, $async$result) ? B.SassBoolean_true : B.SassBoolean_false;
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 10:
+              // case
+              $async$temp1 = left;
+              $async$goto = 31;
+              return A._asyncAwait(t1.right.accept$1(t2), $async$call$0);
+            case 31:
+              // returning from await.
+              t1 = !$async$temp1.$eq(0, $async$result) ? B.SassBoolean_true : B.SassBoolean_false;
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 11:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 32;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 32:
+              // returning from await.
+              t1 = $async$temp1.greaterThan$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 12:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 33;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 33:
+              // returning from await.
+              t1 = $async$temp1.greaterThanOrEquals$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 13:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 34;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 34:
+              // returning from await.
+              t1 = $async$temp1.lessThan$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 14:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 35;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 35:
+              // returning from await.
+              t1 = $async$temp1.lessThanOrEquals$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 15:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 36;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 36:
+              // returning from await.
+              t1 = $async$temp1.plus$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 16:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 37;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 37:
+              // returning from await.
+              t1 = $async$temp1.minus$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 17:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 38;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 38:
+              // returning from await.
+              t1 = $async$temp1.times$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 18:
+              // case
+              t3 = t1.right.accept$1(t2);
+              $async$temp1 = t2;
+              $async$temp2 = left;
+              $async$goto = 39;
+              return A._asyncAwait(type$.Future_Value._is(t3) ? t3 : A._Future$value(t3, type$.Value), $async$call$0);
+            case 39:
+              // returning from await.
+              t1 = $async$temp1._async_evaluate$_slash$3($async$temp2, $async$result, t1);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 19:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 40;
+              return A._asyncAwait(type$.Future_Value._is(t1) ? t1 : A._Future$value(t1, type$.Value), $async$call$0);
+            case 40:
+              // returning from await.
+              t1 = $async$temp1.modulo$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 20:
+              // default
+              t1 = null;
+            case 5:
+              // after switch
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 69
+  };
+  A._EvaluateVisitor__slash_recommendation0.prototype = {
+    call$1(expression) {
+      var t1;
+      $label0$0: {
+        if (expression instanceof A.BinaryOperationExpression && B.BinaryOperator_U77 === expression.operator) {
+          t1 = "math.div(" + A.S(this.call$1(expression.left)) + ", " + A.S(this.call$1(expression.right)) + ")";
+          break $label0$0;
+        }
+        if (expression instanceof A.ParenthesizedExpression) {
+          t1 = expression.expression.toString$0(0);
+          break $label0$0;
+        }
+        t1 = expression.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 136
+  };
+  A._EvaluateVisitor_visitVariableExpression_closure0.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate$_environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitUnaryOperationExpression_closure0.prototype = {
+    call$0() {
+      var t1, _this = this;
+      switch (_this.node.operator) {
+        case B.UnaryOperator_cLp:
+          t1 = _this.operand.unaryPlus$0();
+          break;
+        case B.UnaryOperator_AiQ:
+          t1 = _this.operand.unaryMinus$0();
+          break;
+        case B.UnaryOperator_SJr:
+          t1 = new A.SassString("/" + A.serializeValue(_this.operand, false, true), false);
+          break;
+        case B.UnaryOperator_not_not_not:
+          t1 = _this.operand.unaryNot$0();
+          break;
+        default:
+          t1 = null;
+      }
+      return t1;
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor_visitListExpression_closure0.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 315
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure2.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate$_environment.getFunction$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 99
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure3.prototype = {
+    call$1(argument) {
+      return argument.accept$1(new A._IsCalculationSafeVisitor());
+    },
+    $signature: 110
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure4.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate$_runFunctionCallable$3(t1.$arguments, this._box_0.$function, t1);
+    },
+    $signature: 69
+  };
+  A._EvaluateVisitor__checkCalculationArguments_check0.prototype = {
+    call$1(maxArgs) {
+      var t1 = this.node,
+        t2 = t1.$arguments.positional.length;
+      if (t2 === 0)
+        throw A.wrapException(this.$this._async_evaluate$_exception$2("Missing argument.", t1.span));
+      else if (maxArgs != null && t2 > maxArgs)
+        throw A.wrapException(this.$this._async_evaluate$_exception$2("Only " + A.S(maxArgs) + " " + A.pluralize("argument", maxArgs, null) + " allowed, but " + t2 + " " + A.pluralize("was", t2, "were") + " passed.", t1.span));
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    $signature: 96
+  };
+  A._EvaluateVisitor__visitCalculationExpression_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Object),
+        $async$returnValue, $async$self = this, t1, t2, t3, $async$temp1, $async$temp2, $async$temp3;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self._box_0;
+              t3 = $async$self.inLegacySassFunction;
+              $async$temp1 = A;
+              $async$temp2 = t1._async_evaluate$_binaryOperatorToCalculationOperator$2(t2.operator, $async$self.node);
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_evaluate$_visitCalculationExpression$2$inLegacySassFunction(t2.left, t3), $async$call$0);
+            case 3:
+              // returning from await.
+              $async$temp3 = $async$result;
+              $async$goto = 4;
+              return A._asyncAwait(t1._async_evaluate$_visitCalculationExpression$2$inLegacySassFunction(t2.right, t3), $async$call$0);
+            case 4:
+              // returning from await.
+              $async$returnValue = $async$temp1.SassCalculation_operateInternal($async$temp2, $async$temp3, $async$result, t3, !t1._async_evaluate$_inSupportsDeclaration);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 180
+  };
+  A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure0.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate$_runFunctionCallable$3(t1.$arguments, this.$function, t1);
+    },
+    $signature: 69
+  };
+  A._EvaluateVisitor__runUserDefinedCallable_closure0.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.callable,
+        t3 = _this.V;
+      return t1._async_evaluate$_withEnvironment$1$2(t2.environment.closure$0(), new A._EvaluateVisitor__runUserDefinedCallable__closure0(t1, _this.evaluated, t2, _this.nodeWithSpan, _this.run, t3), t3);
+    },
+    $signature() {
+      return this.V._eval$1("Future<0>()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable__closure0.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.V;
+      return t1._async_evaluate$_environment.scope$1$1(new A._EvaluateVisitor__runUserDefinedCallable___closure0(t1, _this.evaluated, _this.callable, _this.nodeWithSpan, _this.run, t2), t2);
+    },
+    $signature() {
+      return this.V._eval$1("Future<0>()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable___closure0.prototype = {
+    call$0() {
+      return this.$call$body$_EvaluateVisitor__runUserDefinedCallable___closure(this.V);
+    },
+    $call$body$_EvaluateVisitor__runUserDefinedCallable___closure($async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, declaredArguments, t5, minLength, i, argument, t6, t7, value, t8, restArgument, rest, argumentList, result, t1, t2, t3, t4, $async$temp1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.evaluated._values;
+              t3 = $async$self.callable.declaration.$arguments;
+              t4 = $async$self.nodeWithSpan;
+              t1._async_evaluate$_verifyArguments$4(J.get$length$asx(t2[2]), t2[0], t3, t4);
+              declaredArguments = t3.$arguments;
+              t5 = declaredArguments.length;
+              minLength = Math.min(J.get$length$asx(t2[2]), t5);
+              for (i = 0; i < minLength; ++i)
+                t1._async_evaluate$_environment.setLocalVariable$3(declaredArguments[i].name, J.$index$asx(t2[2], i), J.$index$asx(t2[3], i));
+              i = J.get$length$asx(t2[2]);
+            case 3:
+              // for condition
+              if (!(i < t5)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              argument = declaredArguments[i];
+              t6 = t2[0];
+              t7 = argument.name;
+              value = J.remove$1$z(t6, t7);
+              $async$goto = value == null ? 6 : 7;
+              break;
+            case 6:
+              // then
+              t6 = argument.defaultValue;
+              $async$temp1 = t1;
+              $async$goto = 8;
+              return A._asyncAwait(t6.accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+              value = $async$temp1._async_evaluate$_withoutSlash$2($async$result, t1._async_evaluate$_expressionNode$1(t6));
+            case 7:
+              // join
+              t6 = t1._async_evaluate$_environment;
+              t8 = J.$index$asx(t2[1], t7);
+              if (t8 == null) {
+                t8 = argument.defaultValue;
+                t8.toString;
+                t8 = t1._async_evaluate$_expressionNode$1(t8);
+              }
+              t6.setLocalVariable$3(t7, value, t8);
+            case 4:
+              // for update
+              ++i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              restArgument = t3.restArgument;
+              if (restArgument != null) {
+                rest = J.get$length$asx(t2[2]) > t5 ? J.sublist$1$ax(t2[2], t5) : B.List_empty8;
+                t5 = t2[0];
+                t6 = t2[4];
+                argumentList = A.SassArgumentList$(rest, t5, t6 === B.ListSeparator_undecided_null_undecided ? B.ListSeparator_ECn : t6);
+                t1._async_evaluate$_environment.setLocalVariable$3(restArgument, argumentList, t4);
+              } else
+                argumentList = null;
+              $async$goto = 9;
+              return A._asyncAwait($async$self.run.call$0(), $async$call$0);
+            case 9:
+              // returning from await.
+              result = $async$result;
+              if (argumentList == null) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (J.get$isEmpty$asx(t2[0])) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (argumentList._wereKeywordsAccessed) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              throw A.wrapException(A.MultiSpanSassRuntimeException$("No " + A.pluralize("argument", J.get$length$asx(J.get$keys$z(t2[0])), null) + " named " + A.toSentence(J.map$1$1$ax(J.get$keys$z(t2[0]), new A._EvaluateVisitor__runUserDefinedCallable____closure0(), type$.Object), "or") + ".", t4.get$span(t4), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([t3.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), t1._async_evaluate$_stackTrace$1(t4.get$span(t4)), null));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature() {
+      return this.V._eval$1("Future<0>()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable____closure0.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__runFunctionCallable_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, _i, $returnValue;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.callable.declaration, t2 = t1.children, t3 = t2.length, t4 = $async$self.$this, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t2[_i].accept$1(t4), $async$call$0);
+            case 6:
+              // returning from await.
+              $returnValue = $async$result;
+              if ($returnValue instanceof A.Value) {
+                $async$returnValue = $returnValue;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              throw A.wrapException(t4._async_evaluate$_exception$2("Function finished without @return.", t1.span));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 69
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure2.prototype = {
+    call$0() {
+      return this._box_0.overload.verify$2(J.get$length$asx(this.evaluated._values[2]), this.namedSet);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure3.prototype = {
+    call$0() {
+      return this._box_0.callback.call$1(this.evaluated._values[2]);
+    },
+    $signature: 314
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure4.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__evaluateArguments_closure3.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 42
+  };
+  A._EvaluateVisitor__evaluateArguments_closure4.prototype = {
+    call$1(value) {
+      return this.$this._async_evaluate$_withoutSlash$2(value, this.restNodeForSpan);
+    },
+    $signature: 42
+  };
+  A._EvaluateVisitor__evaluateArguments_closure5.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restNodeForSpan;
+      _this.named.$indexSet(0, key, _this.$this._async_evaluate$_withoutSlash$2(value, t1));
+      _this.namedNodes.$indexSet(0, key, t1);
+    },
+    $signature: 97
+  };
+  A._EvaluateVisitor__evaluateArguments_closure6.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 42
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure3.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression(value, t1.get$span(t1));
+    },
+    $signature: 60
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure4.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression(this.$this._async_evaluate$_withoutSlash$2(value, this.restNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 60
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure5.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restArgs;
+      _this.named.$indexSet(0, key, new A.ValueExpression(_this.$this._async_evaluate$_withoutSlash$2(value, _this.restNodeForSpan), t1.get$span(t1)));
+    },
+    $signature: 97
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure6.prototype = {
+    call$1(value) {
+      var t1 = this.keywordRestArgs;
+      return new A.ValueExpression(this.$this._async_evaluate$_withoutSlash$2(value, this.keywordRestNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 60
+  };
+  A._EvaluateVisitor__addRestMap_closure0.prototype = {
+    call$2(key, value) {
+      var t2, _this = this,
+        t1 = _this.$this;
+      if (key instanceof A.SassString)
+        _this.values.$indexSet(0, key._string$_text, _this.convert.call$1(t1._async_evaluate$_withoutSlash$2(value, _this.expressionNode)));
+      else {
+        t2 = _this.nodeWithSpan;
+        throw A.wrapException(t1._async_evaluate$_exception$2(string$.Variab_ + key.toString$0(0) + " is not a string in " + _this.map.toString$0(0) + ".", t2.get$span(t2)));
+      }
+    },
+    $signature: 102
+  };
+  A._EvaluateVisitor__verifyArguments_closure0.prototype = {
+    call$0() {
+      return this.$arguments.verify$2(this.positional, new A.MapKeySet(this.named, type$.MapKeySet_String));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure2.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._async_evaluate$_mergeMediaQueries$2(mediaQueries, this.node.queries);
+    },
+    $signature: 79
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure3.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.mergedQueries;
+              if (t2 == null)
+                t2 = $async$self.node.queries;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_withMediaQueries$1$3(t2, $async$self.mergedSources, new A._EvaluateVisitor_visitCssMediaRule__closure0(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssMediaRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, t4, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate$_atRootExcludingStyleRule ? null : t1._async_evaluate$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssMediaRule___closure0(t1, $async$self.node), false, type$.ModifiableCssStyleRule, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E");
+            case 6:
+              // for condition
+              if (!t2.moveNext$0()) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              t4 = t2.__internal$_current;
+              $async$goto = 8;
+              return A._asyncAwait((t4 == null ? t3._as(t4) : t4).accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 7:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssMediaRule___closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure4.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate$_withStyleRule$1$2($async$self.rule, new A._EvaluateVisitor_visitCssStyleRule__closure0(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssStyleRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure1.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure1.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, t4, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate$_atRootExcludingStyleRule ? null : t1._async_evaluate$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate$_withParent$2$2(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssSupportsRule__closure0(t1, $async$self.node), type$.ModifiableCssStyleRule, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E");
+            case 6:
+              // for condition
+              if (!t2.moveNext$0()) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              t4 = t2.__internal$_current;
+              $async$goto = 8;
+              return A._asyncAwait((t4 == null ? t3._as(t4) : t4).accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 7:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssSupportsRule__closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor__performInterpolationHelper_closure0.prototype = {
+    call$1(targetLocations) {
+      return A.InterpolationMap$(this.interpolation, targetLocations);
+    },
+    $signature: 181
+  };
+  A._EvaluateVisitor__serialize_closure0.prototype = {
+    call$0() {
+      return A.serializeValue(this.value, false, this.quote);
+    },
+    $signature: 25
+  };
+  A._EvaluateVisitor__expressionNode_closure0.prototype = {
+    call$0() {
+      var t1 = this.expression;
+      return this.$this._async_evaluate$_environment.getVariableNode$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 182
+  };
+  A._EvaluateVisitor__withoutSlash_recommendation0.prototype = {
+    call$1(number) {
+      var t1, before, after,
+        _1_0 = number.asSlash;
+      $label0$0: {
+        if (type$.Record_2_nullable_Object_and_nullable_Object._is(_1_0)) {
+          t1 = type$.SassNumber;
+          before = t1._as(_1_0._0);
+          after = t1._as(_1_0._1);
+          t1 = "math.div(" + A.S(this.call$1(before)) + ", " + A.S(this.call$1(after)) + ")";
+          break $label0$0;
+        }
+        t1 = A.serializeValue(number, true, true);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 183
+  };
+  A._EvaluateVisitor__stackFrame_closure0.prototype = {
+    call$1(url) {
+      var t1 = this.$this._async_evaluate$_importCache;
+      t1 = t1 == null ? null : t1.humanize$1(url);
+      return t1 == null ? url : t1;
+    },
+    $signature: 46
+  };
+  A._ImportedCssVisitor0.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.isChildless ? null : new A._ImportedCssVisitor_visitCssAtRule_closure0();
+      this._async_evaluate$_visitor._async_evaluate$_addChild$2$through(node, t1);
+    },
+    visitCssComment$1(node) {
+      return this._async_evaluate$_visitor._async_evaluate$_addChild$1(node);
+    },
+    visitCssDeclaration$1(node) {
+    },
+    visitCssImport$1(node) {
+      var t2,
+        _s13_ = "_endOfImports",
+        t1 = this._async_evaluate$_visitor;
+      if (t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__parent, "__parent") !== t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__root, "_root"))
+        t1._async_evaluate$_addChild$1(node);
+      else if (t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__endOfImports, _s13_) === J.get$length$asx(t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__root, "_root").children._collection$_source)) {
+        t1._async_evaluate$_addChild$1(node);
+        t1._async_evaluate$__endOfImports = t1._async_evaluate$_assertInModule$2(t1._async_evaluate$__endOfImports, _s13_) + 1;
+      } else {
+        t2 = t1._async_evaluate$_outOfOrderImports;
+        (t2 == null ? t1._async_evaluate$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport) : t2).push(node);
+      }
+    },
+    visitCssKeyframeBlock$1(node) {
+    },
+    visitCssMediaRule$1(node) {
+      var t1 = this._async_evaluate$_visitor,
+        mediaQueries = t1._async_evaluate$_mediaQueries;
+      t1._async_evaluate$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssMediaRule_closure0(mediaQueries == null || t1._async_evaluate$_mergeMediaQueries$2(mediaQueries, node.queries) != null));
+    },
+    visitCssStyleRule$1(node) {
+      return this._async_evaluate$_visitor._async_evaluate$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssStyleRule_closure0());
+    },
+    visitCssStylesheet$1(node) {
+      var t1, t2, t3;
+      for (t1 = node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        (t3 == null ? t2._as(t3) : t3).accept$1(this);
+      }
+    },
+    visitCssSupportsRule$1(node) {
+      return this._async_evaluate$_visitor._async_evaluate$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssSupportsRule_closure0());
+    }
+  };
+  A._ImportedCssVisitor_visitCssAtRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._ImportedCssVisitor_visitCssMediaRule_closure0.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule))
+        t1 = this.hasBeenMerged && node instanceof A.ModifiableCssMediaRule;
+      else
+        t1 = true;
+      return t1;
+    },
+    $signature: 7
+  };
+  A._ImportedCssVisitor_visitCssStyleRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._ImportedCssVisitor_visitCssSupportsRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluationContext0.prototype = {
+    get$currentCallableSpan() {
+      var _0_0 = this._async_evaluate$_visitor._async_evaluate$_callableNode;
+      if (_0_0 != null)
+        return _0_0.get$span(_0_0);
+      throw A.wrapException(A.StateError$(string$.No_Sasc));
+    },
+    warn$2(_, message, deprecation) {
+      var t1 = this._async_evaluate$_visitor,
+        t2 = t1._async_evaluate$_importSpan;
+      if (t2 == null) {
+        t2 = t1._async_evaluate$_callableNode;
+        t2 = t2 == null ? null : t2.get$span(t2);
+      }
+      t1._async_evaluate$_warn$3(message, t2 == null ? this._async_evaluate$_defaultWarnNodeWithSpan.span : t2, deprecation);
+    },
+    $isEvaluationContext: 1
+  };
+  A._CloneCssVisitor.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.isChildless,
+        rule = A.ModifiableCssAtRule$(node.name, node.span, t1, node.value);
+      return t1 ? rule : this._visitChildren$2(rule, node);
+    },
+    visitCssComment$1(node) {
+      return new A.ModifiableCssComment(node.text, node.span);
+    },
+    visitCssDeclaration$1(node) {
+      return A.ModifiableCssDeclaration$(node.name, node.value, node.span, node.parsedAsCustomProperty, node.valueSpanForMap);
+    },
+    visitCssImport$1(node) {
+      return new A.ModifiableCssImport(node.url, node.modifiers, node.span);
+    },
+    visitCssKeyframeBlock$1(node) {
+      return this._visitChildren$2(A.ModifiableCssKeyframeBlock$(node.selector, node.span), node);
+    },
+    visitCssMediaRule$1(node) {
+      return this._visitChildren$2(A.ModifiableCssMediaRule$(node.queries, node.span), node);
+    },
+    visitCssStyleRule$1(node) {
+      var _0_0 = this._oldToNewSelectors.$index(0, node._style_rule$_selector._box$_inner.value);
+      if (_0_0 != null)
+        return this._visitChildren$2(A.ModifiableCssStyleRule$(_0_0, node.span, false, node.originalSelector), node);
+      else
+        throw A.wrapException(A.StateError$(string$.The_Ex));
+    },
+    visitCssStylesheet$1(node) {
+      return this._visitChildren$2(A.ModifiableCssStylesheet$(node.get$span(node)), node);
+    },
+    visitCssSupportsRule$1(node) {
+      return this._visitChildren$2(A.ModifiableCssSupportsRule$(node.condition, node.span), node);
+    },
+    _visitChildren$1$2(newParent, oldParent) {
+      var t1, t2, newChild;
+      for (t1 = J.get$iterator$ax(oldParent.get$children(oldParent)); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        newChild = t2.accept$1(this);
+        newChild.isGroupEnd = t2.get$isGroupEnd();
+        newParent.addChild$1(newChild);
+      }
+      return newParent;
+    },
+    _visitChildren$2(newParent, oldParent) {
+      return this._visitChildren$1$2(newParent, oldParent, type$.ModifiableCssParentNode);
+    }
+  };
+  A.Evaluator.prototype = {};
+  A._EvaluateVisitor.prototype = {
+    _EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t2, metaModule, t3, _i, module, $function, t4, _this = this,
+        _s20_ = "$name, $module: null",
+        _s9_ = "sass:meta",
+        _s7_ = "$module",
+        t1 = type$.JSArray_BuiltInCallable,
+        metaFunctions = A._setArrayType([A.BuiltInCallable$function("global-variable-exists", _s20_, new A._EvaluateVisitor_closure(_this), _s9_), A.BuiltInCallable$function("variable-exists", "$name", new A._EvaluateVisitor_closure0(_this), _s9_), A.BuiltInCallable$function("function-exists", _s20_, new A._EvaluateVisitor_closure1(_this), _s9_), A.BuiltInCallable$function("mixin-exists", _s20_, new A._EvaluateVisitor_closure2(_this), _s9_), A.BuiltInCallable$function("content-exists", "", new A._EvaluateVisitor_closure3(_this), _s9_), A.BuiltInCallable$function("module-variables", _s7_, new A._EvaluateVisitor_closure4(_this), _s9_), A.BuiltInCallable$function("module-functions", _s7_, new A._EvaluateVisitor_closure5(_this), _s9_), A.BuiltInCallable$function("module-mixins", _s7_, new A._EvaluateVisitor_closure6(_this), _s9_), A.BuiltInCallable$function("get-function", "$name, $css: false, $module: null", new A._EvaluateVisitor_closure7(_this), _s9_), A.BuiltInCallable$function("get-mixin", _s20_, new A._EvaluateVisitor_closure8(_this), _s9_), A.BuiltInCallable$function("call", "$function, $args...", new A._EvaluateVisitor_closure9(_this), _s9_)], t1),
+        metaMixins = A._setArrayType([A.BuiltInCallable$mixin("load-css", "$url, $with: null", new A._EvaluateVisitor_closure10(_this), false, _s9_), A.BuiltInCallable$mixin("apply", "$mixin, $args...", new A._EvaluateVisitor_closure11(_this), true, _s9_)], t1);
+      t1 = type$.BuiltInCallable;
+      t2 = A.List_List$of($.$get$global(), true, t1);
+      B.JSArray_methods.addAll$1(t2, $.$get$local());
+      B.JSArray_methods.addAll$1(t2, metaFunctions);
+      metaModule = A.BuiltInModule$("meta", t2, metaMixins, null, t1);
+      for (t1 = A.List_List$of($.$get$coreModules(), true, type$.BuiltInModule_Callable), t1.push(metaModule), t2 = t1.length, t3 = _this._builtInModules, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        module = t1[_i];
+        t3.$indexSet(0, module.url, module);
+      }
+      t1 = A._setArrayType([], type$.JSArray_Callable);
+      B.JSArray_methods.addAll$1(t1, $.$get$globalFunctions());
+      B.JSArray_methods.addAll$1(t1, metaFunctions);
+      for (t2 = t1.length, t3 = _this._builtInFunctions, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        $function = t1[_i];
+        t4 = J.get$name$x($function);
+        t3.$indexSet(0, A.stringReplaceAllUnchecked(t4, "_", "-"), $function);
+      }
+    },
+    run$2(_, importer, node) {
+      var error, stackTrace, t1, exception;
+      try {
+        t1 = type$.nullable_Object;
+        t1 = A.runZoned(new A._EvaluateVisitor_run_closure(this, node, importer), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__evaluationContext, new A._EvaluationContext(this, node)], t1, t1), type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace(error.withLoadedUrls$1(this._loadedUrls), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    runExpression$2(importer, expression) {
+      var t1 = type$.nullable_Object;
+      return A.runZoned(new A._EvaluateVisitor_runExpression_closure(this, importer, expression), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__evaluationContext, new A._EvaluationContext(this, expression)], t1, t1), type$.Value);
+    },
+    runStatement$2(importer, statement) {
+      var t1 = type$.nullable_Object;
+      return A.runZoned(new A._EvaluateVisitor_runStatement_closure(this, importer, statement), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__evaluationContext, new A._EvaluationContext(this, statement)], t1, t1), type$.void);
+    },
+    _assertInModule$1$2(value, $name) {
+      if (value != null)
+        return value;
+      throw A.wrapException(A.StateError$("Can't access " + $name + " outside of a module."));
+    },
+    _assertInModule$2(value, $name) {
+      return this._assertInModule$1$2(value, $name, type$.dynamic);
+    },
+    _withFakeStylesheet$1$3(importer, nodeWithSpan, callback) {
+      var t1, _this = this,
+        oldImporter = _this._importer;
+      _this._importer = importer;
+      _this.__stylesheet = A.Stylesheet$(B.List_empty12, nodeWithSpan.get$span(nodeWithSpan));
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        _this._importer = oldImporter;
+        _this.__stylesheet = null;
+      }
+    },
+    _withFakeStylesheet$3(importer, nodeWithSpan, callback) {
+      return this._withFakeStylesheet$1$3(importer, nodeWithSpan, callback, type$.dynamic);
+    },
+    _loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors) {
+      var t2, _this = this, t1 = {},
+        _0_0 = _this._builtInModules.$index(0, url);
+      t1.builtInModule = null;
+      if (_0_0 != null) {
+        t1.builtInModule = _0_0;
+        if (configuration instanceof A.ExplicitConfiguration) {
+          t1 = namesInErrors ? "Built-in module " + url.toString$0(0) + " can't be configured." : "Built-in modules can't be configured.";
+          t2 = configuration.nodeWithSpan;
+          throw A.wrapException(_this._evaluate$_exception$2(t1, t2.get$span(t2)));
+        }
+        _this._addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__loadModule_closure(t1, callback));
+        return;
+      }
+      _this._withStackFrame$3(stackFrame, nodeWithSpan, new A._EvaluateVisitor__loadModule_closure0(_this, url, nodeWithSpan, baseUrl, namesInErrors, configuration, callback));
+    },
+    _loadModule$5$configuration(url, stackFrame, nodeWithSpan, callback, configuration) {
+      return this._loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, configuration, false);
+    },
+    _loadModule$4(url, stackFrame, nodeWithSpan, callback) {
+      return this._loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, null, false);
+    },
+    _execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, configuration, namesInErrors, nodeWithSpan) {
+      var _0_0, currentConfiguration, t2, t3, message, existingSpan, configurationSpan, environment, css, preModuleComments, extensionStore, module, _this = this,
+        t1 = stylesheet.span,
+        url = t1.get$sourceUrl(t1);
+      t1 = _this._modules;
+      _0_0 = t1.$index(0, url);
+      if (_0_0 != null) {
+        t1 = configuration == null;
+        currentConfiguration = t1 ? _this._configuration : configuration;
+        t2 = _this._moduleConfigurations.$index(0, url);
+        t3 = t2.__originalConfiguration;
+        t2 = t3 == null ? t2 : t3;
+        t3 = currentConfiguration.__originalConfiguration;
+        if (t2 !== (t3 == null ? currentConfiguration : t3) && currentConfiguration instanceof A.ExplicitConfiguration) {
+          if (namesInErrors) {
+            t2 = $.$get$context();
+            url.toString;
+            message = t2.prettyUri$1(url) + string$.x20was_a;
+          } else
+            message = string$.This_mw;
+          t2 = _this._moduleNodes.$index(0, url);
+          existingSpan = t2 == null ? null : t2.get$span(t2);
+          if (t1) {
+            t1 = currentConfiguration.nodeWithSpan;
+            configurationSpan = t1.get$span(t1);
+          } else
+            configurationSpan = null;
+          t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (existingSpan != null)
+            t1.$indexSet(0, existingSpan, "original load");
+          if (configurationSpan != null)
+            t1.$indexSet(0, configurationSpan, "configuration");
+          throw A.wrapException(t1.get$isEmpty(0) ? _this._evaluate$_exception$1(message) : _this._multiSpanException$3(message, "new load", t1));
+        }
+        return _0_0;
+      }
+      environment = A.Environment$();
+      css = A._Cell$();
+      preModuleComments = A._Cell$();
+      extensionStore = A.ExtensionStore$();
+      _this._withEnvironment$2(environment, new A._EvaluateVisitor__execute_closure(_this, importer, stylesheet, extensionStore, configuration, css, preModuleComments));
+      t2 = css._readLocal$0();
+      t3 = preModuleComments._readLocal$0();
+      module = environment.toModule$3(t2, t3 == null ? B.Map_empty0 : t3, extensionStore);
+      if (url != null) {
+        t1.$indexSet(0, url, module);
+        _this._moduleConfigurations.$indexSet(0, url, _this._configuration);
+        if (nodeWithSpan != null)
+          _this._moduleNodes.$indexSet(0, url, nodeWithSpan);
+      }
+      return module;
+    },
+    _execute$2(importer, stylesheet) {
+      return this._execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, null, false, null);
+    },
+    _addOutOfOrderImports$0() {
+      var t1, t2, _this = this, _s5_ = "_root",
+        _s13_ = "_endOfImports",
+        _0_0 = _this._outOfOrderImports;
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = _this._assertInModule$2(_this.__root, _s5_).children;
+          break $label0$0;
+        }
+        t1 = _this._assertInModule$2(_this.__root, _s5_).children;
+        t1 = A.List_List$of(A.SubListIterable$(t1, 0, A.checkNotNullable(_this._assertInModule$2(_this.__endOfImports, _s13_), "count", type$.int), t1.$ti._eval$1("ListBase.E")), true, type$.ModifiableCssNode);
+        B.JSArray_methods.addAll$1(t1, _0_0);
+        t2 = _this._assertInModule$2(_this.__root, _s5_).children;
+        B.JSArray_methods.addAll$1(t1, A.SubListIterable$(t2, _this._assertInModule$2(_this.__endOfImports, _s13_), null, t2.$ti._eval$1("ListBase.E")));
+        break $label0$0;
+      }
+      return t1;
+    },
+    _combineCss$2$clone(root, clone) {
+      var selectors, _0_0, t1, imports, css, sorted, t2;
+      if (!B.JSArray_methods.any$1(root.get$upstream(), new A._EvaluateVisitor__combineCss_closure())) {
+        selectors = root.get$extensionStore().get$simpleSelectors();
+        _0_0 = A.IterableExtension_get_firstOrNull(root.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__combineCss_closure0(selectors)));
+        if (_0_0 != null)
+          this._throwForUnsatisfiedExtension$1(_0_0);
+        return root.get$css(root);
+      }
+      t1 = type$.JSArray_CssNode;
+      imports = A._setArrayType([], t1);
+      css = A._setArrayType([], t1);
+      t1 = type$.Module_Callable;
+      sorted = A.ListQueue$(t1);
+      new A._EvaluateVisitor__combineCss_visitModule(this, A.LinkedHashSet_LinkedHashSet$_empty(t1), clone, css, imports, sorted).call$1(root);
+      if (root.get$transitivelyContainsExtensions())
+        this._extendModules$1(sorted);
+      t1 = B.JSArray_methods.$add(imports, css);
+      t2 = root.get$css(root);
+      return new A.CssStylesheet(new A.UnmodifiableListView(t1, type$.UnmodifiableListView_CssNode), t2.get$span(t2));
+    },
+    _combineCss$1(root) {
+      return this._combineCss$2$clone(root, false);
+    },
+    _extendModules$1(sortedModules) {
+      var t1, t2, t3, originalSelectors, $self, t4, t5, _i, upstream, _0_0,
+        downstreamExtensionStores = A.LinkedHashMap_LinkedHashMap$_empty(type$.Uri, type$.List_ExtensionStore),
+        unsatisfiedExtensions = new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_Extension);
+      for (t1 = A._ListQueueIterator$(sortedModules, sortedModules.$ti._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        originalSelectors = t3.get$extensionStore().get$simpleSelectors().toSet$0(0);
+        unsatisfiedExtensions.addAll$1(0, t3.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__extendModules_closure(originalSelectors)));
+        $self = downstreamExtensionStores.$index(0, t3.get$url(t3));
+        t4 = t3.get$extensionStore().get$addExtensions();
+        if ($self != null)
+          t4.call$1($self);
+        t4 = t3.get$extensionStore();
+        if (t4.get$isEmpty(t4))
+          continue;
+        for (t4 = t3.get$upstream(), t5 = t4.length, _i = 0; _i < t4.length; t4.length === t5 || (0, A.throwConcurrentModificationError)(t4), ++_i) {
+          upstream = t4[_i];
+          _0_0 = upstream.get$url(upstream);
+          if (_0_0 != null)
+            J.add$1$ax(downstreamExtensionStores.putIfAbsent$2(_0_0, new A._EvaluateVisitor__extendModules_closure0()), t3.get$extensionStore());
+        }
+        unsatisfiedExtensions.removeAll$1(t3.get$extensionStore().extensionsWhereTarget$1(originalSelectors.get$contains(originalSelectors)));
+      }
+      if (unsatisfiedExtensions._collection$_length !== 0)
+        this._throwForUnsatisfiedExtension$1(unsatisfiedExtensions.get$first(0));
+    },
+    _throwForUnsatisfiedExtension$1(extension) {
+      throw A.wrapException(A.SassException$(string$.The_ta + extension.target.toString$0(0) + ' !optional" to avoid this error.', extension.span, null));
+    },
+    _indexAfterImports$1(statements) {
+      var t1, lastImport, i, _0_0;
+      for (t1 = J.getInterceptor$asx(statements), lastImport = -1, i = 0; i < t1.get$length(statements); ++i) {
+        $label0$0: {
+          _0_0 = t1.$index(statements, i);
+          if (_0_0 instanceof A.ModifiableCssImport)
+            break $label0$0;
+          if (_0_0 instanceof A.ModifiableCssComment)
+            continue;
+          break;
+        }
+        lastImport = i;
+      }
+      return lastImport + 1;
+    },
+    visitStylesheet$1(node) {
+      var t1, t2, _i;
+      for (t1 = node.children, t2 = t1.length, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(this);
+      return null;
+    },
+    visitAtRootRule$1(node) {
+      var t1, _2_0, root, first, rest, innerCopy, outerCopy, _i, copy, _this = this,
+        _s8_ = "__parent",
+        _0_0 = node.query,
+        query = _0_0 != null ? A.AtRootQueryParser$(_this._performInterpolationWithMap$2$warnForColor(_0_0, true)._0, _this._evaluate$_logger, null).parse$0() : B.AtRootQuery_n2q,
+        $parent = _this._assertInModule$2(_this.__parent, _s8_),
+        included = A._setArrayType([], type$.JSArray_ModifiableCssParentNode);
+      for (t1 = type$.CssStylesheet; !t1._is($parent); $parent = _2_0) {
+        if (!query.excludes$1($parent))
+          included.push($parent);
+        _2_0 = $parent._parent;
+        if (_2_0 == null)
+          throw A.wrapException(A.StateError$(string$.CssNod));
+      }
+      root = _this._trimIncluded$1(included);
+      if (root === _this._assertInModule$2(_this.__parent, _s8_)) {
+        _this._environment.scope$1$2$when(new A._EvaluateVisitor_visitAtRootRule_closure(_this, node), node.hasDeclarations, type$.Null);
+        return null;
+      }
+      if (included.length >= 1) {
+        first = included[0];
+        rest = B.JSArray_methods.sublist$1(included, 1);
+        innerCopy = first.copyWithoutChildren$0();
+        for (t1 = rest.length, outerCopy = innerCopy, _i = 0; _i < rest.length; rest.length === t1 || (0, A.throwConcurrentModificationError)(rest), ++_i, outerCopy = copy) {
+          copy = rest[_i].copyWithoutChildren$0();
+          copy.addChild$1(outerCopy);
+        }
+        root.addChild$1(outerCopy);
+      } else
+        innerCopy = root;
+      _this._scopeForAtRoot$4(node, innerCopy, query, included).call$1(new A._EvaluateVisitor_visitAtRootRule_closure0(_this, node));
+      return null;
+    },
+    _trimIncluded$1(nodes) {
+      var $parent, t1, innermostContiguous, i, t2, _0_0, _1_0, root, _this = this, _null = null, _s5_ = "_root",
+        _s22_ = " to be an ancestor of ";
+      if (nodes.length === 0)
+        return _this._assertInModule$2(_this.__root, _s5_);
+      $parent = _this._assertInModule$2(_this.__parent, "__parent");
+      for (t1 = nodes.length, innermostContiguous = _null, i = 0; i < t1; ++i, $parent = _1_0) {
+        for (; t2 = nodes[i], $parent !== t2; innermostContiguous = _null, $parent = _0_0) {
+          _0_0 = $parent._parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+        }
+        if (innermostContiguous == null)
+          innermostContiguous = i;
+        _1_0 = $parent._parent;
+        if (_1_0 == null)
+          throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+      }
+      if ($parent !== _this._assertInModule$2(_this.__root, _s5_))
+        return _this._assertInModule$2(_this.__root, _s5_);
+      innermostContiguous.toString;
+      root = nodes[innermostContiguous];
+      B.JSArray_methods.removeRange$2(nodes, innermostContiguous, nodes.length);
+      return root;
+    },
+    _scopeForAtRoot$4(node, newParent, query, included) {
+      var _this = this,
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure(_this, newParent, node),
+        t1 = query._all || query._at_root_query$_rule;
+      if (t1 !== query.include)
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure0(_this, scope);
+      if (_this._mediaQueries != null && query.excludesName$1("media"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure1(_this, scope);
+      if (_this._inKeyframes && query.excludesName$1("keyframes"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure2(_this, scope);
+      return _this._inUnknownAtRule && !B.JSArray_methods.any$1(included, new A._EvaluateVisitor__scopeForAtRoot_closure3()) ? new A._EvaluateVisitor__scopeForAtRoot_closure4(_this, scope) : scope;
+    },
+    visitContentBlock$1(node) {
+      return A.throwExpression(A.UnsupportedError$(string$.Evalua));
+    },
+    visitContentRule$1(node) {
+      var $content = this._environment._content;
+      if ($content == null)
+        return null;
+      this._runUserDefinedCallable$1$4(node.$arguments, $content, node, new A._EvaluateVisitor_visitContentRule_closure(this, $content), type$.Null);
+      return null;
+    },
+    visitDebugRule$1(node) {
+      var value = node.expression.accept$1(this),
+        t1 = value instanceof A.SassString ? value._string$_text : A.serializeValue(value, true, true);
+      this._evaluate$_logger.debug$2(0, t1, node.span);
+      return null;
+    },
+    visitDeclaration$1(node) {
+      var t2, $name, _0_0, _1_0, value, t3, t4, t5, _2_0, oldDeclarationName, _this = this, _null = null, t1 = {};
+      if ((_this._atRootExcludingStyleRule ? _null : _this._styleRuleIgnoringAtRoot) == null && !_this._inUnknownAtRule && !_this._inKeyframes)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Declarm, node.span));
+      if (_this._declarationName != null && B.JSString_methods.startsWith$1(node.name.get$initialPlain(), "--"))
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Declarw, node.span));
+      t2 = node.name;
+      $name = _this._interpolationToValue$2$warnForColor(t2, true);
+      _0_0 = _this._declarationName;
+      if (_0_0 != null)
+        $name = new A.CssValue(_0_0 + "-" + A.S($name.value), $name.span, type$.CssValue_String);
+      _1_0 = node.value;
+      if (_1_0 != null) {
+        value = _1_0.accept$1(_this);
+        if (!value.get$isBlank() || value.get$asList().length === 0) {
+          t3 = _this._assertInModule$2(_this.__parent, "__parent");
+          t4 = _1_0.get$span(_1_0);
+          t2 = B.JSString_methods.startsWith$1(t2.get$initialPlain(), "--");
+          if (_this._sourceMap) {
+            t5 = A.NullableExtension_andThen(_1_0, _this.get$_expressionNode());
+            t5 = t5 == null ? _null : J.get$span$z(t5);
+          } else
+            t5 = _null;
+          t3.addChild$1(A.ModifiableCssDeclaration$($name, new A.CssValue(value, t4, type$.CssValue_Value), node.span, t2, t5));
+        } else if (J.startsWith$1$s($name.value, "--"))
+          throw A.wrapException(_this._evaluate$_exception$2("Custom property values may not be empty.", _1_0.get$span(_1_0)));
+      }
+      _2_0 = node.children;
+      t1.children = null;
+      if (_2_0 != null) {
+        t1.children = _2_0;
+        oldDeclarationName = _this._declarationName;
+        _this._declarationName = $name.value;
+        _this._environment.scope$1$2$when(new A._EvaluateVisitor_visitDeclaration_closure(t1, _this), node.hasDeclarations, type$.Null);
+        _this._declarationName = oldDeclarationName;
+      }
+      return _null;
+    },
+    visitEachRule$1(node) {
+      var _this = this, _box_0 = {},
+        t1 = node.list,
+        list = t1.accept$1(_this),
+        nodeWithSpan = _this._expressionNode$1(t1),
+        _0_0 = node.variables;
+      $label0$0: {
+        _box_0.variable = null;
+        if (_0_0.length === 1) {
+          _box_0.variable = _0_0[0];
+          t1 = new A._EvaluateVisitor_visitEachRule_closure(_box_0, _this, nodeWithSpan);
+          break $label0$0;
+        }
+        _box_0.variables = null;
+        _box_0.variables = _0_0;
+        t1 = new A._EvaluateVisitor_visitEachRule_closure0(_box_0, _this, nodeWithSpan);
+        break $label0$0;
+      }
+      return _this._environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitEachRule_closure1(_this, list, t1, node), true, type$.nullable_Value);
+    },
+    _setMultipleVariables$3(variables, value, nodeWithSpan) {
+      var i,
+        list = value.get$asList(),
+        t1 = variables.length,
+        minLength = Math.min(t1, list.length);
+      for (i = 0; i < minLength; ++i)
+        this._environment.setLocalVariable$3(variables[i], this._withoutSlash$2(list[i], nodeWithSpan), nodeWithSpan);
+      for (i = minLength; i < t1; ++i)
+        this._environment.setLocalVariable$3(variables[i], B.C__SassNull, nodeWithSpan);
+    },
+    visitErrorRule$1(node) {
+      throw A.wrapException(this._evaluate$_exception$2(J.toString$0$(node.expression.accept$1(this)), node.span));
+    },
+    visitExtendRule$1(node) {
+      var t1, t2, t3, t4, t5, _i, complex, visitor, t6, t7, _0_0, compound, _this = this, _null = null,
+        styleRule = _this._atRootExcludingStyleRule ? _null : _this._styleRuleIgnoringAtRoot;
+      if (styleRule == null || _this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.x40exten, node.span));
+      for (t1 = styleRule.originalSelector.components, t2 = t1.length, t3 = node.span, t4 = type$.SourceSpan, t5 = type$.String, _i = 0; _i < t2; ++_i) {
+        complex = t1[_i];
+        if (!complex.accept$1(B._IsBogusVisitor_true))
+          continue;
+        visitor = A._SerializeVisitor$(_null, true, _null, true, false, _null, true);
+        complex.accept$1(visitor);
+        t6 = B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0));
+        t7 = complex.accept$1(B.C__IsUselessVisitor) ? "can't" : "shouldn't";
+        _this._warn$3('The selector "' + t6 + '" is invalid CSS and ' + t7 + string$.x20be_an, new A.MultiSpan(A.SpanExtensions_trimRight(complex.span), "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t3, "@extend rule"], t4, t5), t4, t5)), B.Deprecation_ido);
+      }
+      _0_0 = _this._performInterpolationWithMap$2$warnForColor(node.selector, true);
+      for (t1 = A.SelectorList_SelectorList$parse(A.trimAscii(_0_0._0, true), false, _0_0._1, _this._evaluate$_logger, false).components, t2 = t1.length, t3 = styleRule._style_rule$_selector._box$_inner, _i = 0; _i < t2; ++_i) {
+        complex = t1[_i];
+        compound = complex.get$singleCompound();
+        if (compound == null)
+          throw A.wrapException(A.SassFormatException$("complex selectors may not be extended.", complex.span, _null));
+        t4 = compound.components;
+        t5 = t4.length === 1 ? B.JSArray_methods.get$first(t4) : _null;
+        if (t5 == null)
+          throw A.wrapException(A.SassFormatException$(string$.compou + B.JSArray_methods.join$1(t4, ", ") + string$.x60_inst, compound.span, _null));
+        _this._assertInModule$2(_this.__extensionStore, "_extensionStore").addExtension$4(t3.value, t5, node, _this._mediaQueries);
+      }
+      return _null;
+    },
+    visitAtRule$1(node) {
+      var $name, value, children, wasInKeyframes, wasInUnknownAtRule, _this = this;
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.At_rul, node.span));
+      $name = _this._interpolationToValue$1(node.name);
+      value = A.NullableExtension_andThen(node.value, new A._EvaluateVisitor_visitAtRule_closure(_this));
+      children = node.children;
+      if (children == null) {
+        _this._assertInModule$2(_this.__parent, "__parent").addChild$1(A.ModifiableCssAtRule$($name, node.span, true, value));
+        return null;
+      }
+      wasInKeyframes = _this._inKeyframes;
+      wasInUnknownAtRule = _this._inUnknownAtRule;
+      if (A.unvendor($name.value) === "keyframes")
+        _this._inKeyframes = true;
+      else
+        _this._inUnknownAtRule = true;
+      _this._withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$($name, node.span, false, value), new A._EvaluateVisitor_visitAtRule_closure0(_this, $name, children), node.hasDeclarations, new A._EvaluateVisitor_visitAtRule_closure1(), type$.ModifiableCssAtRule, type$.Null);
+      _this._inUnknownAtRule = wasInUnknownAtRule;
+      _this._inKeyframes = wasInKeyframes;
+      return null;
+    },
+    visitForRule$1(node) {
+      var _this = this, t1 = {},
+        t2 = node.from,
+        fromNumber = _this._addExceptionSpan$2(t2, new A._EvaluateVisitor_visitForRule_closure(_this, node)),
+        t3 = node.to,
+        toNumber = _this._addExceptionSpan$2(t3, new A._EvaluateVisitor_visitForRule_closure0(_this, node)),
+        from = _this._addExceptionSpan$2(t2, new A._EvaluateVisitor_visitForRule_closure1(fromNumber)),
+        to = t1.to = _this._addExceptionSpan$2(t3, new A._EvaluateVisitor_visitForRule_closure2(toNumber, fromNumber)),
+        direction = from > to ? -1 : 1;
+      if (from === (!node.isExclusive ? t1.to = to + direction : to))
+        return null;
+      return _this._environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitForRule_closure3(t1, _this, node, from, direction, fromNumber), true, type$.nullable_Value);
+    },
+    visitForwardRule$1(node) {
+      var newConfiguration, t4, _i, variable, $name, _this = this,
+        _s8_ = "@forward",
+        oldConfiguration = _this._configuration,
+        adjustedConfiguration = oldConfiguration.throughForward$1(node),
+        t1 = node.configuration,
+        t2 = t1.length,
+        t3 = node.url;
+      if (t2 !== 0) {
+        newConfiguration = _this._addForwardConfiguration$2(adjustedConfiguration, node);
+        _this._loadModule$5$configuration(t3, _s8_, node, new A._EvaluateVisitor_visitForwardRule_closure(_this, node), newConfiguration);
+        t3 = type$.String;
+        t4 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+        for (_i = 0; _i < t2; ++_i) {
+          variable = t1[_i];
+          if (!variable.isGuarded)
+            t4.add$1(0, variable.name);
+        }
+        _this._removeUsedConfiguration$3$except(adjustedConfiguration, newConfiguration, t4);
+        t3 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+        for (_i = 0; _i < t2; ++_i)
+          t3.add$1(0, t1[_i].name);
+        for (t1 = newConfiguration._configuration$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t4 = t2.length, _i = 0; _i < t2.length; t2.length === t4 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+          $name = t2[_i];
+          if (!t3.contains$1(0, $name))
+            if (!t1.get$isEmpty(t1))
+              t1.remove$1(0, $name);
+        }
+        _this._assertConfigurationIsEmpty$1(newConfiguration);
+      } else {
+        _this._configuration = adjustedConfiguration;
+        _this._loadModule$4(t3, _s8_, node, new A._EvaluateVisitor_visitForwardRule_closure0(_this, node));
+        _this._configuration = oldConfiguration;
+      }
+      return null;
+    },
+    _addForwardConfiguration$2(configuration, node) {
+      var t2, t3, _i, variable, t4, oldValue, t5, variableNodeWithSpan, _null = null,
+        t1 = configuration._configuration$_values,
+        newValues = A.LinkedHashMap_LinkedHashMap$of(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue), type$.String, type$.ConfiguredValue);
+      for (t2 = node.configuration, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        variable = t2[_i];
+        if (variable.isGuarded) {
+          t4 = variable.name;
+          oldValue = t1.get$isEmpty(t1) ? _null : t1.remove$1(0, t4);
+          if (oldValue != null)
+            t5 = !oldValue.value.$eq(0, B.C__SassNull);
+          else {
+            oldValue = _null;
+            t5 = false;
+          }
+          if (t5) {
+            newValues.$indexSet(0, t4, oldValue);
+            continue;
+          }
+        }
+        t4 = variable.expression;
+        variableNodeWithSpan = this._expressionNode$1(t4);
+        newValues.$indexSet(0, variable.name, new A.ConfiguredValue(this._withoutSlash$2(t4.accept$1(this), variableNodeWithSpan), variable.span, variableNodeWithSpan));
+      }
+      if (configuration instanceof A.ExplicitConfiguration || t1.get$isEmpty(t1))
+        return new A.ExplicitConfiguration(node, newValues, _null);
+      else
+        return new A.Configuration(newValues, _null);
+    },
+    _registerCommentsForModule$1(module) {
+      var _this = this, _s5_ = "_root",
+        t1 = _this.__root;
+      if (t1 == null)
+        return;
+      if (_this._assertInModule$2(t1, _s5_).children.get$length(0) === 0 || !module.get$transitivelyContainsCss())
+        return;
+      t1 = _this._preModuleComments;
+      if (t1 == null)
+        t1 = _this._preModuleComments = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_Callable, type$.List_CssComment);
+      J.addAll$1$ax(t1.putIfAbsent$2(module, new A._EvaluateVisitor__registerCommentsForModule_closure()), new A.UnmodifiableListView(J.cast$1$0$ax(_this._assertInModule$2(_this.__root, _s5_).children._collection$_source, type$.CssComment), type$.UnmodifiableListView_CssComment));
+      _this._assertInModule$2(_this.__root, _s5_).clearChildren$0();
+      _this.__endOfImports = 0;
+    },
+    _removeUsedConfiguration$3$except(upstream, downstream, except) {
+      var t1, t2, t3, t4, _i, $name;
+      for (t1 = upstream._configuration$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t3 = t2.length, t4 = downstream._configuration$_values, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        $name = t2[_i];
+        if (except.contains$1(0, $name))
+          continue;
+        if (!t4.containsKey$1($name))
+          if (!t1.get$isEmpty(t1))
+            t1.remove$1(0, $name);
+      }
+    },
+    _assertConfigurationIsEmpty$2$nameInError(configuration, nameInError) {
+      var t1, _0_0, $name, value;
+      if (!(configuration instanceof A.ExplicitConfiguration))
+        return;
+      t1 = configuration._configuration$_values;
+      if (t1.get$isEmpty(t1))
+        return;
+      t1 = A.MapExtensions_get_pairs(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue), type$.String, type$.ConfiguredValue);
+      _0_0 = t1.get$first(t1);
+      $name = _0_0._0;
+      value = _0_0._1;
+      t1 = nameInError ? "$" + $name + string$.x20was_n : string$.This_v;
+      throw A.wrapException(this._evaluate$_exception$2(t1, value.configurationSpan));
+    },
+    _assertConfigurationIsEmpty$1(configuration) {
+      return this._assertConfigurationIsEmpty$2$nameInError(configuration, false);
+    },
+    visitFunctionRule$1(node) {
+      var t1 = this._environment,
+        t2 = t1.closure$0(),
+        t3 = this._inDependency,
+        t4 = t1._functions,
+        index = t4.length - 1,
+        t5 = node.name;
+      t1._functionIndices.$indexSet(0, t5, index);
+      J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable(node, t2, t3, type$.UserDefinedCallable_Environment));
+      return null;
+    },
+    visitIfRule$1(node) {
+      var t1, t2, _i, clauseToCheck,
+        clause = node.lastClause;
+      for (t1 = node.clauses, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        clauseToCheck = t1[_i];
+        if (clauseToCheck.expression.accept$1(this).get$isTruthy()) {
+          clause = clauseToCheck;
+          break;
+        }
+      }
+      return A.NullableExtension_andThen(clause, new A._EvaluateVisitor_visitIfRule_closure(this));
+    },
+    visitImportRule$1(node) {
+      var t1, t2, t3, t4, t5, t6, _i, $import, t7, _0_0, $self, t8, _this = this,
+        _s8_ = "__parent",
+        _s5_ = "_root",
+        _s13_ = "_endOfImports";
+      for (t1 = node.imports, t2 = t1.length, t3 = type$.CssValue_String, t4 = _this.get$_interpolationToValue(), t5 = type$.StaticImport, t6 = type$.JSArray_ModifiableCssImport, _i = 0; _i < t2; ++_i) {
+        $import = t1[_i];
+        if ($import instanceof A.DynamicImport)
+          _this._visitDynamicImport$1($import);
+        else {
+          t5._as($import);
+          t7 = $import.url;
+          _0_0 = _this._performInterpolationHelper$3$sourceMap$warnForColor(t7, false, false);
+          $self = $import.modifiers;
+          t8 = $self == null ? null : t4.call$1($self);
+          node = new A.ModifiableCssImport(new A.CssValue(_0_0._0, t7.span, t3), t8, $import.span);
+          if (_this._assertInModule$2(_this.__parent, _s8_) !== _this._assertInModule$2(_this.__root, _s5_))
+            _this._assertInModule$2(_this.__parent, _s8_).addChild$1(node);
+          else if (_this._assertInModule$2(_this.__endOfImports, _s13_) === J.get$length$asx(_this._assertInModule$2(_this.__root, _s5_).children._collection$_source)) {
+            t7 = _this._assertInModule$2(_this.__root, _s5_);
+            node._parent = t7;
+            t7 = t7._children;
+            node._indexInParent = t7.length;
+            t7.push(node);
+            _this.__endOfImports = _this._assertInModule$2(_this.__endOfImports, _s13_) + 1;
+          } else {
+            t7 = _this._outOfOrderImports;
+            (t7 == null ? _this._outOfOrderImports = A._setArrayType([], t6) : t7).push(node);
+          }
+        }
+      }
+      return null;
+    },
+    _visitDynamicImport$1($import) {
+      return this._withStackFrame$3("@import", $import, new A._EvaluateVisitor__visitDynamicImport_closure(this, $import));
+    },
+    _loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, forImport) {
+      var _0_0, importCache, _1_0, importer, canonicalUrl, originalUrl, isDependency, _2_0, stylesheet, error, stackTrace, error0, stackTrace0, message, t1, t2, t3, t4, exception, message0, _this = this;
+      baseUrl = baseUrl;
+      try {
+        _this._importSpan = span;
+        _0_0 = _this._evaluate$_importCache;
+        importCache = null;
+        if (_0_0 != null) {
+          importCache = _0_0;
+          if (baseUrl == null) {
+            t1 = _this._assertInModule$2(_this.__stylesheet, "_stylesheet").span;
+            baseUrl = t1.get$sourceUrl(t1);
+          }
+          _1_0 = J.canonicalize$4$baseImporter$baseUrl$forImport$x(importCache, A.Uri_parse(url), _this._importer, baseUrl, forImport);
+          importer = null;
+          canonicalUrl = null;
+          originalUrl = null;
+          if (type$.Record_3_nullable_Object_and_nullable_Object_and_nullable_Object_originalUrl._is(_1_0)) {
+            importer = _1_0._0;
+            canonicalUrl = _1_0._1;
+            originalUrl = _1_0._2;
+            _this._loadedUrls.add$1(0, canonicalUrl);
+            isDependency = _this._inDependency || !J.$eq$(importer, _this._importer);
+            t1 = importCache;
+            t2 = importer;
+            t3 = canonicalUrl;
+            t4 = originalUrl;
+            _2_0 = t1.importCanonical$4$originalUrl$quiet(t2, t3, t4, _this._quietDeps && isDependency);
+            stylesheet = null;
+            if (_2_0 != null) {
+              stylesheet = _2_0;
+              t1 = stylesheet;
+              t2 = importer;
+              return new A._Record_3_importer_isDependency(t1, t2, isDependency);
+            }
+          }
+        }
+        t1 = B.JSString_methods.startsWith$1(url, "package:");
+        if (t1)
+          throw A.wrapException(string$.x22packa);
+        else
+          throw A.wrapException("Can't find stylesheet to import.");
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException)
+          throw exception;
+        else if (t1 instanceof A.ArgumentError) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace(_this._evaluate$_exception$1(J.toString$0$(error)), error, stackTrace);
+        } else {
+          error0 = t1;
+          stackTrace0 = A.getTraceFromException(exception);
+          message = null;
+          try {
+            message = A._asString(J.get$message$x(error0));
+          } catch (exception) {
+            message0 = J.toString$0$(error0);
+            message = message0;
+          }
+          A.throwWithTrace(_this._evaluate$_exception$1(message), error0, stackTrace0);
+        }
+      } finally {
+        _this._importSpan = null;
+      }
+    },
+    _loadStylesheet$3$baseUrl(url, span, baseUrl) {
+      return this._loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, false);
+    },
+    _loadStylesheet$3$forImport(url, span, forImport) {
+      return this._loadStylesheet$4$baseUrl$forImport(url, span, null, forImport);
+    },
+    _applyMixin$5(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent) {
+      var t1, _0_0, _1_8, t2, _this = this,
+        _s37_ = "Mixin doesn't accept a content block.",
+        _s10_ = "invocation";
+      $label0$0: {
+        if (mixin == null)
+          throw A.wrapException(_this._evaluate$_exception$2("Undefined mixin.", nodeWithSpan.get$span(nodeWithSpan)));
+        t1 = mixin instanceof A.BuiltInCallable;
+        if (t1 && !mixin.acceptsContent && contentCallable != null) {
+          t1 = _this._evaluateArguments$1($arguments)._values;
+          _0_0 = mixin.callbackFor$2(t1[2].length, new A.MapKeySet(t1[0], type$.MapKeySet_String));
+          throw A.wrapException(A.MultiSpanSassRuntimeException$(_s37_, nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_0_0._0.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), _this._evaluate$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+        }
+        if (t1) {
+          _this._environment.withContent$2(contentCallable, new A._EvaluateVisitor__applyMixin_closure(_this, $arguments, mixin, nodeWithSpanWithoutContent));
+          break $label0$0;
+        }
+        t1 = type$.UserDefinedCallable_Environment._is(mixin);
+        if (t1) {
+          _1_8 = mixin.declaration;
+          if (_1_8 instanceof A.MixinRule)
+            t2 = !type$.MixinRule._as(_1_8).get$hasContent() && contentCallable != null;
+          else
+            t2 = false;
+        } else
+          t2 = false;
+        if (t2)
+          throw A.wrapException(A.MultiSpanSassRuntimeException$(_s37_, nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), _s10_, A.LinkedHashMap_LinkedHashMap$_literal([mixin.declaration.$arguments.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), _this._evaluate$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+        if (t1) {
+          _this._runUserDefinedCallable$1$4($arguments, mixin, nodeWithSpanWithoutContent, new A._EvaluateVisitor__applyMixin_closure0(_this, contentCallable, mixin, nodeWithSpanWithoutContent), type$.Null);
+          break $label0$0;
+        }
+        throw A.wrapException(A.UnsupportedError$("Unknown callable type " + mixin.toString$0(0) + "."));
+      }
+    },
+    visitIncludeRule$1(node) {
+      var _this = this,
+        mixin = _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitIncludeRule_closure(_this, node));
+      if (B.JSString_methods.startsWith$1(node.originalName, "--") && mixin instanceof A.UserDefinedCallable && !B.JSString_methods.startsWith$1(mixin.declaration.originalName, "--"))
+        _this._warn$3(string$.Sass__m, node.get$nameSpan(), B.Deprecation_HJ0);
+      _this._applyMixin$5(mixin, A.NullableExtension_andThen(node.content, new A._EvaluateVisitor_visitIncludeRule_closure0(_this)), node.$arguments, node, new A._FakeAstNode(new A._EvaluateVisitor_visitIncludeRule_closure1(node)));
+      return null;
+    },
+    visitMixinRule$1(node) {
+      var t1 = this._environment,
+        t2 = t1.closure$0(),
+        t3 = this._inDependency,
+        t4 = t1._mixins,
+        index = t4.length - 1,
+        t5 = node.name;
+      t1._mixinIndices.$indexSet(0, t5, index);
+      J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable(node, t2, t3, type$.UserDefinedCallable_Environment));
+      return null;
+    },
+    visitLoudComment$1(node) {
+      var t1, _this = this,
+        _s8_ = "__parent",
+        _s13_ = "_endOfImports";
+      if (_this._inFunction)
+        return null;
+      if (_this._assertInModule$2(_this.__parent, _s8_) === _this._assertInModule$2(_this.__root, "_root") && _this._assertInModule$2(_this.__endOfImports, _s13_) === J.get$length$asx(_this._assertInModule$2(_this.__root, "_root").children._collection$_source))
+        _this.__endOfImports = _this._assertInModule$2(_this.__endOfImports, _s13_) + 1;
+      t1 = node.text;
+      _this._assertInModule$2(_this.__parent, _s8_).addChild$1(new A.ModifiableCssComment(_this._performInterpolation$1(t1), t1.span));
+      return null;
+    },
+    visitMediaRule$1(node) {
+      var _0_0, queries, mergedQueries, t1, mergedSources, t2, t3, _this = this;
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Media_, node.span));
+      _0_0 = _this._performInterpolationWithMap$2$warnForColor(node.query, true);
+      queries = A.CssMediaQuery_parseList(_0_0._0, _0_0._1, _this._evaluate$_logger);
+      mergedQueries = A.NullableExtension_andThen(_this._mediaQueries, new A._EvaluateVisitor_visitMediaRule_closure(_this, queries));
+      t1 = mergedQueries == null;
+      if (!t1 && J.get$isEmpty$asx(mergedQueries))
+        return null;
+      if (t1)
+        mergedSources = B.Set_empty1;
+      else {
+        t2 = _this._mediaQuerySources;
+        t2.toString;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery);
+        t3 = _this._mediaQueries;
+        t3.toString;
+        t2.addAll$1(0, t3);
+        t2.addAll$1(0, queries);
+        mergedSources = t2;
+      }
+      t1 = t1 ? queries : mergedQueries;
+      _this._withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$(t1, node.span), new A._EvaluateVisitor_visitMediaRule_closure0(_this, mergedQueries, queries, mergedSources, node), node.hasDeclarations, new A._EvaluateVisitor_visitMediaRule_closure1(mergedSources), type$.ModifiableCssMediaRule, type$.Null);
+      return null;
+    },
+    _mergeMediaQueries$2(queries1, queries2) {
+      var t1, t2, t3, t4, _0_0, t5, result,
+        queries = A._setArrayType([], type$.JSArray_CssMediaQuery);
+      for (t1 = J.get$iterator$ax(queries1), t2 = J.getInterceptor$ax(queries2); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        for (t4 = t2.get$iterator(queries2); t4.moveNext$0();)
+          $label0$1: {
+            _0_0 = t3.merge$1(t4.get$current(t4));
+            if (B._SingletonCssMediaQueryMergeResult_0 === _0_0)
+              continue;
+            if (B._SingletonCssMediaQueryMergeResult_1 === _0_0)
+              return null;
+            t5 = _0_0 instanceof A.MediaQuerySuccessfulMergeResult;
+            result = t5 ? _0_0 : null;
+            if (t5)
+              queries.push(result.query);
+            break $label0$1;
+          }
+      }
+      return queries;
+    },
+    visitReturnRule$1(node) {
+      var t1 = node.expression;
+      return this._withoutSlash$2(t1.accept$1(this), t1);
+    },
+    visitSilentComment$1(node) {
+      return null;
+    },
+    visitStyleRule$1(node) {
+      var t1, _0_0, selectorText, selectorMap, parsedSelector, nest, t2, _i, _1_0, first, t3, rule, oldAtRootExcludingStyleRule, t4, t5, complex, visitor, t6, t7, t8, t9, _this = this, _null = null,
+        _s8_ = "__parent",
+        _s11_ = "_stylesheet";
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Style_n, node.span));
+      else if (_this._inKeyframes && _this._assertInModule$2(_this.__parent, _s8_) instanceof A.ModifiableCssKeyframeBlock)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Style_k, node.span));
+      t1 = node.selector;
+      _0_0 = _this._performInterpolationWithMap$2$warnForColor(t1, true);
+      selectorText = _0_0._0;
+      selectorMap = _0_0._1;
+      if (_this._inKeyframes) {
+        _this._withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$(new A.CssValue(A.List_List$unmodifiable(A.KeyframeSelectorParser$(selectorText, selectorMap, _this._evaluate$_logger).parse$0(), type$.String), t1.span, type$.CssValue_List_String), node.span), new A._EvaluateVisitor_visitStyleRule_closure(_this, node), node.hasDeclarations, new A._EvaluateVisitor_visitStyleRule_closure0(), type$.ModifiableCssKeyframeBlock, type$.Null);
+        return _null;
+      }
+      parsedSelector = A.SelectorList_SelectorList$parse(selectorText, true, selectorMap, _this._evaluate$_logger, _this._assertInModule$2(_this.__stylesheet, _s11_).plainCss);
+      t1 = _this._atRootExcludingStyleRule ? _null : _this._styleRuleIgnoringAtRoot;
+      t1 = t1 == null ? _null : t1.fromPlainCss;
+      nest = t1 !== true;
+      if (nest) {
+        if (_this._assertInModule$2(_this.__stylesheet, _s11_).plainCss)
+          for (t1 = parsedSelector.components, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+            _1_0 = t1[_i].leadingCombinators;
+            if (_1_0.length >= 1) {
+              first = _1_0[0];
+              t3 = _this._assertInModule$2(_this.__stylesheet, _s11_);
+              t3 = t3.plainCss;
+            } else {
+              first = _null;
+              t3 = false;
+            }
+            if (t3)
+              throw A.wrapException(_this._evaluate$_exception$2(string$.Top_lel, first.span));
+          }
+        t1 = _this._styleRuleIgnoringAtRoot;
+        t1 = t1 == null ? _null : t1.originalSelector;
+        parsedSelector = parsedSelector.nestWithin$3$implicitParent$preserveParentSelectors(t1, !_this._atRootExcludingStyleRule, _this._assertInModule$2(_this.__stylesheet, _s11_).plainCss);
+      }
+      rule = A.ModifiableCssStyleRule$(_this._assertInModule$2(_this.__extensionStore, "_extensionStore").addSelector$2(parsedSelector, _this._mediaQueries), node.span, _this._assertInModule$2(_this.__stylesheet, _s11_).plainCss, parsedSelector);
+      oldAtRootExcludingStyleRule = _this._atRootExcludingStyleRule;
+      _this._atRootExcludingStyleRule = false;
+      t1 = nest ? new A._EvaluateVisitor_visitStyleRule_closure1() : _null;
+      _this._withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitStyleRule_closure2(_this, rule, node), node.hasDeclarations, t1, type$.ModifiableCssStyleRule, type$.Null);
+      _this._atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+      if (!rule.accept$1(B._IsInvisibleVisitor_false_false))
+        for (t1 = parsedSelector.components, t2 = t1.length, t3 = type$.SourceSpan, t4 = type$.String, t5 = rule.children, _i = 0; _i < t2; ++_i) {
+          complex = t1[_i];
+          if (!complex.accept$1(B._IsBogusVisitor_true))
+            continue;
+          if (complex.accept$1(B.C__IsUselessVisitor)) {
+            visitor = A._SerializeVisitor$(_null, true, _null, true, false, _null, true);
+            complex.accept$1(visitor);
+            _this._warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0)) + string$.x22x20is_ix20, A.SpanExtensions_trimRight(complex.span), B.Deprecation_ido);
+          } else if (complex.leadingCombinators.length !== 0) {
+            if (!_this._assertInModule$2(_this.__stylesheet, _s11_).plainCss) {
+              visitor = A._SerializeVisitor$(_null, true, _null, true, false, _null, true);
+              complex.accept$1(visitor);
+              _this._warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0)) + string$.x22x20is_ix0a, A.SpanExtensions_trimRight(complex.span), B.Deprecation_ido);
+            }
+          } else {
+            visitor = A._SerializeVisitor$(_null, true, _null, true, false, _null, true);
+            complex.accept$1(visitor);
+            t6 = B.JSString_methods.trim$0(visitor._serialize$_buffer.toString$0(0));
+            t7 = complex.accept$1(B._IsBogusVisitor_false) ? string$.x20It_wi : "";
+            t8 = A.SpanExtensions_trimRight(complex.span);
+            if (t5.get$length(0) === 0)
+              A.throwExpression(A.IterableElementError_noElement());
+            t9 = J.get$span$z(t5.$index(0, 0));
+            _this._warn$3('The selector "' + t6 + string$.x22x20is_o + t7 + string$.x0aThis_, new A.MultiSpan(t8, "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t9, "this is not a style rule" + (t5.every$1(t5, new A._EvaluateVisitor_visitStyleRule_closure3()) ? "\n(try converting to a //-style comment)" : "")], t3, t4), t3, t4)), B.Deprecation_ido);
+          }
+        }
+      if ((_this._atRootExcludingStyleRule ? _null : _this._styleRuleIgnoringAtRoot) == null) {
+        t1 = _this._assertInModule$2(_this.__parent, _s8_).children;
+        t1 = !t1.get$isEmpty(t1);
+      } else
+        t1 = false;
+      if (t1) {
+        t1 = _this._assertInModule$2(_this.__parent, _s8_).children;
+        t1.get$last(t1).isGroupEnd = true;
+      }
+      return _null;
+    },
+    visitSupportsRule$1(node) {
+      var t1, _this = this;
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Suppor, node.span));
+      t1 = node.condition;
+      _this._withParent$2$4$scopeWhen$through(A.ModifiableCssSupportsRule$(new A.CssValue(_this._visitSupportsCondition$1(t1), t1.get$span(t1), type$.CssValue_String), node.span), new A._EvaluateVisitor_visitSupportsRule_closure(_this, node), node.hasDeclarations, new A._EvaluateVisitor_visitSupportsRule_closure0(), type$.ModifiableCssSupportsRule, type$.Null);
+      return null;
+    },
+    _visitSupportsCondition$1(condition) {
+      var t1, _this = this, _box_0 = {};
+      $label0$0: {
+        if (condition instanceof A.SupportsOperation) {
+          t1 = condition.operator;
+          t1 = _this._parenthesize$2(condition.left, t1) + " " + t1 + " " + _this._parenthesize$2(condition.right, t1);
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsNegation) {
+          t1 = "not " + _this._parenthesize$1(condition.condition);
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsInterpolation) {
+          t1 = condition.expression;
+          t1 = _this._evaluate$_serialize$3$quote(t1.accept$1(_this), t1, false);
+          break $label0$0;
+        }
+        _box_0.declaration = null;
+        if (condition instanceof A.SupportsDeclaration) {
+          _box_0.declaration = condition;
+          t1 = _this._withSupportsDeclaration$1(new A._EvaluateVisitor__visitSupportsCondition_closure(_box_0, _this));
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsFunction) {
+          t1 = _this._performInterpolation$1(condition.name) + "(" + _this._performInterpolation$1(condition.$arguments) + ")";
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsAnything) {
+          t1 = "(" + _this._performInterpolation$1(condition.contents) + ")";
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.ArgumentError$("Unknown supports condition type " + A.getRuntimeTypeOfDartObject(condition).toString$0(0) + ".", null));
+      }
+      return t1;
+    },
+    _withSupportsDeclaration$1$1(callback) {
+      var t1,
+        oldInSupportsDeclaration = this._inSupportsDeclaration;
+      this._inSupportsDeclaration = true;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        this._inSupportsDeclaration = oldInSupportsDeclaration;
+      }
+    },
+    _withSupportsDeclaration$1(callback) {
+      return this._withSupportsDeclaration$1$1(callback, type$.dynamic);
+    },
+    _parenthesize$2(condition, operator) {
+      var t1;
+      if (!(condition instanceof A.SupportsNegation))
+        if (condition instanceof A.SupportsOperation)
+          t1 = operator == null || operator !== condition.operator;
+        else
+          t1 = false;
+      else
+        t1 = true;
+      if (t1)
+        return "(" + this._visitSupportsCondition$1(condition) + ")";
+      return this._visitSupportsCondition$1(condition);
+    },
+    _parenthesize$1(condition) {
+      return this._parenthesize$2(condition, null);
+    },
+    visitVariableDeclaration$1(node) {
+      var t2, value, _this = this, _null = null, t1 = {};
+      if (node.isGuarded) {
+        if (node.namespace == null && _this._environment._variables.length === 1) {
+          t2 = _this._configuration._configuration$_values;
+          t2 = t2.get$isEmpty(t2) ? _null : t2.remove$1(0, node.name);
+          t1.override = null;
+          if (t2 != null) {
+            t1.override = t2;
+            t2 = !t2.value.$eq(0, B.C__SassNull);
+          } else
+            t2 = false;
+          if (t2) {
+            _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure(t1, _this, node));
+            return _null;
+          }
+        }
+        value = _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure0(_this, node));
+        if (value != null && !value.$eq(0, B.C__SassNull))
+          return _null;
+      }
+      if (node.isGlobal && !_this._environment.globalVariableExists$1(node.name)) {
+        t1 = _this._environment._variables.length === 1 ? string$.As_of_S : string$.As_of_R + A.declarationName(node.span) + ": null` at the stylesheet root.";
+        _this._warn$3(t1, node.span, B.Deprecation_2nU);
+      }
+      t1 = node.expression;
+      _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure1(_this, node, _this._withoutSlash$2(t1.accept$1(_this), t1)));
+      return _null;
+    },
+    visitUseRule$1(node) {
+      var values, _i, variable, t3, variableNodeWithSpan, configuration, _this = this,
+        t1 = node.configuration,
+        t2 = t1.length;
+      if (t2 !== 0) {
+        values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue);
+        for (_i = 0; _i < t2; ++_i) {
+          variable = t1[_i];
+          t3 = variable.expression;
+          variableNodeWithSpan = _this._expressionNode$1(t3);
+          values.$indexSet(0, variable.name, new A.ConfiguredValue(_this._withoutSlash$2(t3.accept$1(_this), variableNodeWithSpan), variable.span, variableNodeWithSpan));
+        }
+        configuration = new A.ExplicitConfiguration(node, values, null);
+      } else
+        configuration = B.Configuration_Map_empty_null;
+      _this._loadModule$5$configuration(node.url, "@use", node, new A._EvaluateVisitor_visitUseRule_closure(_this, node), configuration);
+      _this._assertConfigurationIsEmpty$1(configuration);
+      return null;
+    },
+    visitWarnRule$1(node) {
+      var _this = this,
+        value = _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitWarnRule_closure(_this, node)),
+        t1 = value instanceof A.SassString ? value._string$_text : _this._evaluate$_serialize$2(value, node.expression);
+      _this._evaluate$_logger.warn$2$trace(0, t1, _this._evaluate$_stackTrace$1(node.span));
+      return null;
+    },
+    visitWhileRule$1(node) {
+      return this._environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitWhileRule_closure(this, node), true, node.hasDeclarations, type$.nullable_Value);
+    },
+    visitBinaryOperationExpression$1(node) {
+      var t1, _this = this;
+      if (_this._assertInModule$2(_this.__stylesheet, "_stylesheet").plainCss) {
+        t1 = node.operator;
+        t1 = t1 !== B.BinaryOperator_wdM && t1 !== B.BinaryOperator_U77;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(_this._evaluate$_exception$2("Operators aren't allowed in plain CSS.", node.get$operatorSpan()));
+      return _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitBinaryOperationExpression_closure(_this, node));
+    },
+    _slash$3(left, right, node) {
+      var t1, right0, _1_2, _1_1, _null = null,
+        result = left.dividedBy$1(right),
+        _1_2_isSet = left instanceof A.SassNumber;
+      if (_1_2_isSet) {
+        t1 = type$.SassNumber;
+        t1._as(left);
+        if (right instanceof A.SassNumber) {
+          t1._as(right);
+          t1 = node.allowsSlash && this._operandAllowsSlash$1(node.left) && this._operandAllowsSlash$1(node.right);
+          right0 = right;
+          _1_2 = right0;
+        } else {
+          right0 = _null;
+          _1_2 = right;
+          t1 = false;
+        }
+        _1_1 = left;
+      } else {
+        right0 = _null;
+        _1_2 = right0;
+        _1_1 = left;
+        left = _1_2;
+        t1 = false;
+      }
+      if (t1)
+        return type$.SassNumber._as(result).withSlash$2(left, right0);
+      if (_1_1 instanceof A.SassNumber)
+        t1 = (_1_2_isSet ? _1_2 : right) instanceof A.SassNumber;
+      else
+        t1 = false;
+      if (t1) {
+        this._warn$3(string$.Using__o + A.S(new A._EvaluateVisitor__slash_recommendation().call$1(node)) + " or " + A.expressionToCalc(node).toString$0(0) + string$.x0a_Morex20, node.get$span(0), B.Deprecation_oJv);
+        return result;
+      }
+      return result;
+    },
+    _operandAllowsSlash$1(node) {
+      var t1;
+      if (node instanceof A.FunctionExpression)
+        if (node.namespace == null) {
+          t1 = node.name;
+          t1 = B.Set_yHF81.contains$1(0, t1.toLowerCase()) && this._environment.getFunction$1(t1) == null;
+        } else
+          t1 = false;
+      else
+        t1 = true;
+      return t1;
+    },
+    visitValueExpression$1(node) {
+      return node.value;
+    },
+    visitVariableExpression$1(node) {
+      var result = this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableExpression_closure(this, node));
+      if (result != null)
+        return result;
+      throw A.wrapException(this._evaluate$_exception$2("Undefined variable.", node.span));
+    },
+    visitUnaryOperationExpression$1(node) {
+      return this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitUnaryOperationExpression_closure(node, node.operand.accept$1(this)));
+    },
+    visitBooleanExpression$1(node) {
+      return node.value ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    visitIfExpression$1(node) {
+      var condition, t1, ifTrue, ifFalse, result, _this = this,
+        _0_0 = _this._evaluateMacroArguments$1(node),
+        positional = _0_0._0,
+        named = _0_0._1;
+      _this._verifyArguments$4(positional.length, named, $.$get$IfExpression_declaration(), node);
+      condition = A.ListExtensions_elementAtOrNull(positional, 0);
+      if (condition == null) {
+        t1 = named.$index(0, "condition");
+        t1.toString;
+        condition = t1;
+      }
+      ifTrue = A.ListExtensions_elementAtOrNull(positional, 1);
+      if (ifTrue == null) {
+        t1 = named.$index(0, "if-true");
+        t1.toString;
+        ifTrue = t1;
+      }
+      ifFalse = A.ListExtensions_elementAtOrNull(positional, 2);
+      if (ifFalse == null) {
+        t1 = named.$index(0, "if-false");
+        t1.toString;
+        ifFalse = t1;
+      }
+      result = condition.accept$1(_this).get$isTruthy() ? ifTrue : ifFalse;
+      return _this._withoutSlash$2(result.accept$1(_this), _this._expressionNode$1(result));
+    },
+    visitNullExpression$1(node) {
+      return B.C__SassNull;
+    },
+    visitNumberExpression$1(node) {
+      return A.SassNumber_SassNumber(node.value, node.unit);
+    },
+    visitParenthesizedExpression$1(node) {
+      var _this = this;
+      return _this._assertInModule$2(_this.__stylesheet, "_stylesheet").plainCss ? A.throwExpression(_this._evaluate$_exception$2("Parentheses aren't allowed in plain CSS.", node.span)) : node.expression.accept$1(_this);
+    },
+    visitColorExpression$1(node) {
+      return node.value;
+    },
+    visitListExpression$1(node) {
+      var t1 = node.contents;
+      return A.SassList$(new A.MappedListIterable(t1, new A._EvaluateVisitor_visitListExpression_closure(this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value>")), node.separator, node.hasBrackets);
+    },
+    visitMapExpression$1(node) {
+      var t2, t3, _i, t4, key, value, keyValue, valueValue, oldValueSpan,
+        t1 = type$.Value,
+        map = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1),
+        keyNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode);
+      for (t2 = node.pairs, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        t4 = t2[_i];
+        key = t4._0;
+        value = t4._1;
+        keyValue = key.accept$1(this);
+        valueValue = value.accept$1(this);
+        if (map.containsKey$1(keyValue)) {
+          t1 = keyNodes.$index(0, keyValue);
+          oldValueSpan = t1 == null ? null : t1.get$span(t1);
+          t1 = key.get$span(key);
+          t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (oldValueSpan != null)
+            t2.$indexSet(0, oldValueSpan, "first key");
+          throw A.wrapException(A.MultiSpanSassRuntimeException$("Duplicate key.", t1, "second key", t2, this._evaluate$_stackTrace$1(key.get$span(key)), null));
+        }
+        map.$indexSet(0, keyValue, valueValue);
+        keyNodes.$indexSet(0, keyValue, key);
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(map, t1, t1));
+    },
+    visitFunctionExpression$1(node) {
+      var t2, _0_0, t3, t4, oldInFunction, result, _this = this,
+        _s11_ = "_stylesheet",
+        t1 = {},
+        $function = _this._assertInModule$2(_this.__stylesheet, _s11_).plainCss ? null : _this._addExceptionSpan$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure(_this, node));
+      t1.$function = $function;
+      if ($function == null) {
+        if (node.namespace != null)
+          throw A.wrapException(_this._evaluate$_exception$2("Undefined function.", node.span));
+        t2 = node.name;
+        _0_0 = t2.toLowerCase();
+        if ("min" === _0_0 || "max" === _0_0 || "round" === _0_0 || "abs" === _0_0) {
+          t3 = node.$arguments;
+          t4 = t3.named;
+          t3 = t4.get$isEmpty(t4) && t3.rest == null && B.JSArray_methods.every$1(t3.positional, new A._EvaluateVisitor_visitFunctionExpression_closure0());
+        } else
+          t3 = false;
+        if (t3)
+          return _this._visitCalculation$2$inLegacySassFunction(node, true);
+        if ("calc" === _0_0 || "clamp" === _0_0 || "hypot" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "sqrt" === _0_0 || "exp" === _0_0 || "sign" === _0_0 || "mod" === _0_0 || "rem" === _0_0 || "atan2" === _0_0 || "pow" === _0_0 || "log" === _0_0)
+          return _this._visitCalculation$1(node);
+        $function = _this._assertInModule$2(_this.__stylesheet, _s11_).plainCss ? null : _this._builtInFunctions.$index(0, t2);
+        t2 = t1.$function = $function == null ? new A.PlainCssCallable(node.originalName) : $function;
+      } else
+        t2 = $function;
+      if (B.JSString_methods.startsWith$1(node.originalName, "--") && t2 instanceof A.UserDefinedCallable && !B.JSString_methods.startsWith$1(t2.declaration.originalName, "--"))
+        _this._warn$3(string$.Sass__ff, node.get$nameSpan(), B.Deprecation_HJ0);
+      oldInFunction = _this._inFunction;
+      _this._inFunction = true;
+      result = _this._addErrorSpan$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure1(t1, _this, node));
+      _this._inFunction = oldInFunction;
+      return result;
+    },
+    _visitCalculation$2$inLegacySassFunction(node, inLegacySassFunction) {
+      var $arguments, oldCallableNode, t1, _0_0, error, stackTrace, t4, _i, exception, _this = this,
+        t2 = node.$arguments,
+        t3 = t2.named;
+      if (t3.get$isNotEmpty(t3))
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Keywor, node.span));
+      else if (t2.rest != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Rest_a, node.span));
+      _this._checkCalculationArguments$1(node);
+      t3 = A._setArrayType([], type$.JSArray_Object);
+      for (t2 = t2.positional, t4 = t2.length, _i = 0; _i < t4; ++_i)
+        t3.push(_this._visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction));
+      $arguments = t3;
+      if (_this._inSupportsDeclaration)
+        return new A.SassCalculation(node.name, A.List_List$unmodifiable($arguments, type$.Object));
+      oldCallableNode = _this._callableNode;
+      _this._callableNode = node;
+      try {
+        t1 = null;
+        t3 = node.name;
+        _0_0 = t3.toLowerCase();
+        $label0$0: {
+          if ("calc" === _0_0) {
+            t1 = A.SassCalculation_calc(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("sqrt" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("sqrt", J.$index$asx($arguments, 0), A.number0__sqrt$closure(), true);
+            break $label0$0;
+          }
+          if ("sin" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("sin", J.$index$asx($arguments, 0), A.number0__sin$closure(), false);
+            break $label0$0;
+          }
+          if ("cos" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("cos", J.$index$asx($arguments, 0), A.number0__cos$closure(), false);
+            break $label0$0;
+          }
+          if ("tan" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("tan", J.$index$asx($arguments, 0), A.number0__tan$closure(), false);
+            break $label0$0;
+          }
+          if ("asin" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("asin", J.$index$asx($arguments, 0), A.number0__asin$closure(), true);
+            break $label0$0;
+          }
+          if ("acos" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("acos", J.$index$asx($arguments, 0), A.number0__acos$closure(), true);
+            break $label0$0;
+          }
+          if ("atan" === _0_0) {
+            t1 = A.SassCalculation__singleArgument("atan", J.$index$asx($arguments, 0), A.number0__atan$closure(), true);
+            break $label0$0;
+          }
+          if ("abs" === _0_0) {
+            t1 = A.SassCalculation_abs(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("exp" === _0_0) {
+            t1 = A.SassCalculation_exp(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("sign" === _0_0) {
+            t1 = A.SassCalculation_sign(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("min" === _0_0) {
+            t1 = A.SassCalculation_min($arguments);
+            break $label0$0;
+          }
+          if ("max" === _0_0) {
+            t1 = A.SassCalculation_max($arguments);
+            break $label0$0;
+          }
+          if ("hypot" === _0_0) {
+            t1 = A.SassCalculation_hypot($arguments);
+            break $label0$0;
+          }
+          if ("pow" === _0_0) {
+            t1 = A.SassCalculation_pow(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("atan2" === _0_0) {
+            t1 = A.SassCalculation_atan2(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("log" === _0_0) {
+            t1 = A.SassCalculation_log(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("mod" === _0_0) {
+            t1 = A.SassCalculation_mod(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("rem" === _0_0) {
+            t1 = A.SassCalculation_rem(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("round" === _0_0) {
+            t1 = A.SassCalculation_round(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+            break $label0$0;
+          }
+          if ("clamp" === _0_0) {
+            t1 = A.SassCalculation_clamp(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+            break $label0$0;
+          }
+          t3 = A.UnsupportedError$('Unknown calculation name "' + t3 + '".');
+          t1 = A.throwExpression(t3);
+        }
+        t1 = t1;
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassScriptException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          if (B.JSString_methods.contains$1(error.message, "compatible"))
+            _this._verifyCompatibleNumbers$2($arguments, t2);
+          A.throwWithTrace(_this._evaluate$_exception$2(error.message, node.span), error, stackTrace);
+        } else
+          throw exception;
+      } finally {
+        _this._callableNode = oldCallableNode;
+      }
+    },
+    _visitCalculation$1(node) {
+      return this._visitCalculation$2$inLegacySassFunction(node, false);
+    },
+    _checkCalculationArguments$1(node) {
+      var t1, _0_0,
+        check = new A._EvaluateVisitor__checkCalculationArguments_check(this, node);
+      $label0$0: {
+        t1 = node.name;
+        _0_0 = t1.toLowerCase();
+        if ("calc" === _0_0 || "sqrt" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "abs" === _0_0 || "exp" === _0_0 || "sign" === _0_0) {
+          check.call$1(1);
+          break $label0$0;
+        }
+        if ("min" === _0_0 || "max" === _0_0 || "hypot" === _0_0) {
+          check.call$0();
+          break $label0$0;
+        }
+        if ("pow" === _0_0 || "atan2" === _0_0 || "log" === _0_0 || "mod" === _0_0 || "rem" === _0_0) {
+          check.call$1(2);
+          break $label0$0;
+        }
+        if ("round" === _0_0 || "clamp" === _0_0) {
+          check.call$1(3);
+          break $label0$0;
+        }
+        throw A.wrapException(A.UnsupportedError$('Unknown calculation name "' + t1 + '".'));
+      }
+    },
+    _verifyCompatibleNumbers$2(args, nodesWithSpans) {
+      var i, t1, _0_0, arg, number1, j, number2;
+      for (i = 0; t1 = args.length, i < t1; ++i) {
+        _0_0 = args[i];
+        if (_0_0 instanceof A.SassNumber) {
+          t1 = _0_0.get$hasComplexUnits();
+          arg = _0_0;
+        } else {
+          arg = null;
+          t1 = false;
+        }
+        if (t1)
+          throw A.wrapException(this._evaluate$_exception$2("Number " + A.S(arg) + " isn't compatible with CSS calculations.", J.get$span$z(nodesWithSpans[i])));
+      }
+      for (i = 0; i < t1 - 1; ++i) {
+        number1 = args[i];
+        if (!(number1 instanceof A.SassNumber))
+          continue;
+        for (j = i + 1; t1 = args.length, j < t1; ++j) {
+          number2 = args[j];
+          if (!(number2 instanceof A.SassNumber))
+            continue;
+          if (number1.hasPossiblyCompatibleUnits$1(number2))
+            continue;
+          throw A.wrapException(A.MultiSpanSassRuntimeException$(number1.toString$0(0) + " and " + number2.toString$0(0) + " are incompatible.", J.get$span$z(nodesWithSpans[i]), number1.toString$0(0), A.LinkedHashMap_LinkedHashMap$_literal([J.get$span$z(nodesWithSpans[j]), number2.toString$0(0)], type$.FileSpan, type$.String), this._evaluate$_stackTrace$1(J.get$span$z(nodesWithSpans[i])), null));
+        }
+      }
+    },
+    _visitCalculationExpression$2$inLegacySassFunction(node, inLegacySassFunction) {
+      var result, t2, _0_0, _1_0, t3, _i, i, _this = this, _null = null, _box_0 = {},
+        t1 = node instanceof A.ParenthesizedExpression,
+        inner = t1 ? node.expression : _null;
+      if (t1) {
+        result = _this._visitCalculationExpression$2$inLegacySassFunction(inner, inLegacySassFunction);
+        return result instanceof A.SassString ? new A.SassString("(" + result._string$_text + ")", false) : result;
+      }
+      if (node instanceof A.StringExpression && node.accept$1(new A._IsCalculationSafeVisitor())) {
+        t1 = node.text;
+        t2 = t1.get$asPlain();
+        _0_0 = t2 == null ? _null : t2.toLowerCase();
+        $label0$0: {
+          if ("pi" === _0_0) {
+            t1 = A.SassNumber_SassNumber(3.141592653589793, _null);
+            break $label0$0;
+          }
+          if ("e" === _0_0) {
+            t1 = A.SassNumber_SassNumber(2.718281828459045, _null);
+            break $label0$0;
+          }
+          if ("infinity" === _0_0) {
+            t1 = A.SassNumber_SassNumber(1 / 0, _null);
+            break $label0$0;
+          }
+          if ("-infinity" === _0_0) {
+            t1 = A.SassNumber_SassNumber(-1 / 0, _null);
+            break $label0$0;
+          }
+          if ("nan" === _0_0) {
+            t1 = A.SassNumber_SassNumber(0 / 0, _null);
+            break $label0$0;
+          }
+          t1 = new A.SassString(_this._performInterpolation$1(t1), false);
+          break $label0$0;
+        }
+        return t1;
+      }
+      _box_0.right = _box_0.left = _box_0.operator = null;
+      t1 = node instanceof A.BinaryOperationExpression;
+      if (t1) {
+        _box_0.operator = node.operator;
+        _box_0.left = node.left;
+        _box_0.right = node.right;
+      }
+      if (t1) {
+        _this._checkWhitespaceAroundCalculationOperator$1(node);
+        return _this._addExceptionSpan$2(node, new A._EvaluateVisitor__visitCalculationExpression_closure(_box_0, _this, node, inLegacySassFunction));
+      }
+      if (node instanceof A.NumberExpression || node instanceof A.VariableExpression || node instanceof A.FunctionExpression || node instanceof A.IfExpression) {
+        _1_0 = node.accept$1(_this);
+        $label1$1: {
+          if (_1_0 instanceof A.SassNumber) {
+            t1 = _1_0;
+            break $label1$1;
+          }
+          if (_1_0 instanceof A.SassCalculation) {
+            t1 = _1_0;
+            break $label1$1;
+          }
+          if (_1_0 instanceof A.SassString) {
+            t1 = !_1_0._hasQuotes;
+            result = _1_0;
+          } else {
+            result = _null;
+            t1 = false;
+          }
+          if (t1) {
+            t1 = result;
+            break $label1$1;
+          }
+          t1 = A.throwExpression(_this._evaluate$_exception$2("Value " + _1_0.toString$0(0) + " can't be used in a calculation.", node.get$span(node)));
+        }
+        return t1;
+      }
+      if (node instanceof A.ListExpression && !node.hasBrackets && B.ListSeparator_nbm === node.separator && node.contents.length >= 2) {
+        t1 = A._setArrayType([], type$.JSArray_Object);
+        for (t2 = node.contents, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t1.push(_this._visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction));
+        _this._checkAdjacentCalculationValues$2(t1, node);
+        for (i = 0; i < t1.length; ++i) {
+          t3 = t1[i];
+          if (t3 instanceof A.CalculationOperation && t2[i] instanceof A.ParenthesizedExpression)
+            t1[i] = new A.SassString("(" + A.S(t3) + ")", false);
+        }
+        return new A.SassString(B.JSArray_methods.join$1(t1, " "), false);
+      }
+      throw A.wrapException(_this._evaluate$_exception$2(string$.This_e, node.get$span(node)));
+    },
+    _checkWhitespaceAroundCalculationOperator$1(node) {
+      var t2, t3, t4, textBetweenOperands, first, last,
+        t1 = node.operator;
+      if (t1 !== B.BinaryOperator_u15 && t1 !== B.BinaryOperator_SjO)
+        return;
+      t1 = node.left;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t3 = node.right;
+      t4 = t3.get$span(t3);
+      if (t2 !== t4.get$file(t4))
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$end(t2);
+      t4 = t3.get$span(t3);
+      if (t2.offset >= t4.get$start(t4).offset)
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t1 = t1.get$span(t1);
+      t1 = t1.get$end(t1);
+      t3 = t3.get$span(t3);
+      textBetweenOperands = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2._decodedChars, t1.offset, t3.get$start(t3).offset), 0, null);
+      first = textBetweenOperands.charCodeAt(0);
+      last = textBetweenOperands.charCodeAt(textBetweenOperands.length - 1);
+      if (first === 32 || first === 9 || first === 10 || first === 13 || first === 12 || first === 47)
+        t1 = !(last === 32 || last === 9 || last === 10 || last === 13 || last === 12 || last === 47);
+      else
+        t1 = true;
+      if (t1)
+        throw A.wrapException(this._evaluate$_exception$2(string$.x22x2b__an, node.get$operatorSpan()));
+    },
+    _binaryOperatorToCalculationOperator$2(operator, node) {
+      var t1;
+      $label0$0: {
+        if (B.BinaryOperator_u15 === operator) {
+          t1 = B.CalculationOperator_g2q;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_SjO === operator) {
+          t1 = B.CalculationOperator_CxF;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_2No === operator) {
+          t1 = B.CalculationOperator_171;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_U77 === operator) {
+          t1 = B.CalculationOperator_Qf1;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(this._evaluate$_exception$2(string$.This_o, node.get$operatorSpan()));
+      }
+      return t1;
+    },
+    _checkAdjacentCalculationValues$2(elements, node) {
+      var t1, i, t2, previous, current, previousNode, currentNode, _0_2;
+      for (t1 = elements.length, i = 1; i < t1; ++i) {
+        t2 = i - 1;
+        previous = elements[t2];
+        current = elements[i];
+        if (previous instanceof A.SassString || current instanceof A.SassString)
+          continue;
+        t1 = node.contents;
+        previousNode = t1[t2];
+        currentNode = t1[i];
+        if (currentNode instanceof A.UnaryOperationExpression) {
+          _0_2 = currentNode.operator;
+          if (B.UnaryOperator_AiQ !== _0_2)
+            t1 = B.UnaryOperator_cLp === _0_2;
+          else
+            t1 = true;
+        } else
+          t1 = false;
+        if (!t1)
+          t1 = currentNode instanceof A.NumberExpression && currentNode.value < 0;
+        else
+          t1 = true;
+        if (t1)
+          throw A.wrapException(this._evaluate$_exception$2(string$.x22x2b__an, A.FileSpanExtension_subspan(currentNode.get$span(currentNode), 0, 1)));
+        else
+          throw A.wrapException(this._evaluate$_exception$2("Missing math operator.", previousNode.get$span(previousNode).expand$1(0, currentNode.get$span(currentNode))));
+      }
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      var result, _this = this,
+        t1 = _this._performInterpolation$1(node.name),
+        oldInFunction = _this._inFunction;
+      _this._inFunction = true;
+      result = _this._addErrorSpan$2(node, new A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure(_this, node, new A.PlainCssCallable(t1)));
+      _this._inFunction = oldInFunction;
+      return result;
+    },
+    _runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, run, $V) {
+      var oldCallable, result, _this = this,
+        evaluated = _this._evaluateArguments$1($arguments),
+        $name = callable.declaration.name;
+      if ($name !== "@content")
+        $name += "()";
+      oldCallable = _this._currentCallable;
+      _this._currentCallable = callable;
+      result = _this._withStackFrame$3($name, nodeWithSpan, new A._EvaluateVisitor__runUserDefinedCallable_closure(_this, callable, evaluated, nodeWithSpan, run, $V));
+      _this._currentCallable = oldCallable;
+      return result;
+    },
+    _runFunctionCallable$3($arguments, callable, nodeWithSpan) {
+      var buffer, first, argument, restArg, rest, error, t1, t2, _i, t3, t4, exception, _this = this;
+      if (callable instanceof A.BuiltInCallable)
+        return _this._withoutSlash$2(_this._runBuiltInCallable$3($arguments, callable, nodeWithSpan), nodeWithSpan);
+      else if (type$.UserDefinedCallable_Environment._is(callable))
+        return _this._runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, new A._EvaluateVisitor__runFunctionCallable_closure(_this, callable), type$.Value);
+      else if (callable instanceof A.PlainCssCallable) {
+        t1 = $arguments.named;
+        if (t1.get$isNotEmpty(t1) || $arguments.keywordRest != null)
+          throw A.wrapException(_this._evaluate$_exception$2(string$.Plain_, nodeWithSpan.get$span(nodeWithSpan)));
+        buffer = new A.StringBuffer(callable.name + "(");
+        try {
+          first = true;
+          for (t1 = $arguments.positional, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+            argument = t1[_i];
+            if (first)
+              first = false;
+            else
+              buffer._contents += ", ";
+            t3 = buffer;
+            t4 = argument;
+            t4 = _this._evaluate$_serialize$3$quote(t4.accept$1(_this), t4, true);
+            t3._contents += t4;
+          }
+          restArg = $arguments.rest;
+          if (restArg != null) {
+            rest = restArg.accept$1(_this);
+            if (!first)
+              buffer._contents += ", ";
+            t1 = buffer;
+            t2 = _this._evaluate$_serialize$2(rest, restArg);
+            t1._contents += t2;
+          }
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (type$.SassRuntimeException._is(t1)) {
+            error = t1;
+            if (!B.JSString_methods.endsWith$1(error._span_exception$_message, "isn't a valid CSS value."))
+              throw exception;
+            throw A.wrapException(A.MultiSpanSassRuntimeException$(error._span_exception$_message, J.get$span$z(error), "value", A.LinkedHashMap_LinkedHashMap$_literal([nodeWithSpan.get$span(nodeWithSpan), "unknown function treated as plain CSS"], type$.FileSpan, type$.String), J.get$trace$z(error), null));
+          } else
+            throw exception;
+        }
+        t1 = buffer;
+        t2 = A.Primitives_stringFromCharCode(41);
+        t1._contents += t2;
+        t2 = buffer._contents;
+        return new A.SassString(t2.charCodeAt(0) == 0 ? t2 : t2, false);
+      } else
+        throw A.wrapException(A.ArgumentError$("Unknown callable type " + J.get$runtimeType$(callable).toString$0(0) + ".", null));
+    },
+    _runBuiltInCallable$3($arguments, callable, nodeWithSpan) {
+      var result, error, stackTrace, message, namedSet, _0_0, declaredArguments, i, t1, argument, t2, t3, rest, argumentList, exception, message0, _this = this, _box_0 = {},
+        evaluated = _this._evaluateArguments$1($arguments),
+        oldCallableNode = _this._callableNode;
+      _this._callableNode = nodeWithSpan;
+      namedSet = new A.MapKeySet(evaluated._values[0], type$.MapKeySet_String);
+      _box_0.callback = _box_0.overload = null;
+      _0_0 = callable.callbackFor$2(evaluated._values[2].length, namedSet);
+      _box_0.overload = _0_0._0;
+      _box_0.callback = _0_0._1;
+      _this._addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure(_box_0, evaluated, namedSet));
+      declaredArguments = _box_0.overload.$arguments;
+      for (i = evaluated._values[2].length, t1 = declaredArguments.length; i < t1; ++i) {
+        argument = declaredArguments[i];
+        t2 = evaluated._values[2];
+        t3 = evaluated._values[0].remove$1(0, argument.name);
+        if (t3 == null) {
+          t3 = argument.defaultValue;
+          t3 = _this._withoutSlash$2(t3.accept$1(_this), t3);
+        }
+        t2.push(t3);
+      }
+      if (_box_0.overload.restArgument != null) {
+        if (evaluated._values[2].length > t1) {
+          rest = B.JSArray_methods.sublist$1(evaluated._values[2], t1);
+          B.JSArray_methods.removeRange$2(evaluated._values[2], t1, evaluated._values[2].length);
+        } else
+          rest = B.List_empty8;
+        t1 = evaluated._values[0];
+        argumentList = A.SassArgumentList$(rest, t1, evaluated._values[4] === B.ListSeparator_undecided_null_undecided ? B.ListSeparator_ECn : evaluated._values[4]);
+        evaluated._values[2].push(argumentList);
+      } else
+        argumentList = null;
+      result = null;
+      try {
+        result = _this._addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure0(_box_0, evaluated));
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException)
+          throw exception;
+        else {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          message = null;
+          try {
+            message = A._asString(J.get$message$x(error));
+          } catch (exception) {
+            message0 = J.toString$0$(error);
+            message = message0;
+          }
+          A.throwWithTrace(_this._evaluate$_exception$2(message, nodeWithSpan.get$span(nodeWithSpan)), error, stackTrace);
+        }
+      }
+      _this._callableNode = oldCallableNode;
+      if (argumentList == null)
+        return result;
+      if (evaluated._values[0].__js_helper$_length === 0)
+        return result;
+      if (argumentList._wereKeywordsAccessed)
+        return result;
+      throw A.wrapException(A.MultiSpanSassRuntimeException$("No " + A.pluralize("argument", evaluated._values[0].get$keys(0).get$length(0), null) + " named " + A.toSentence(evaluated._values[0].get$keys(0).map$1$1(0, new A._EvaluateVisitor__runBuiltInCallable_closure1(), type$.Object), "or") + ".", nodeWithSpan.get$span(nodeWithSpan), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([_box_0.overload.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), _this._evaluate$_stackTrace$1(nodeWithSpan.get$span(nodeWithSpan)), null));
+    },
+    _evaluateArguments$1($arguments) {
+      var t1, t2, _i, expression, nodeForSpan, named, namedNodes, t3, t4, $name, value, restArgs, rest, restNodeForSpan, t5, separator, keywordRestArgs, keywordRest, keywordRestNodeForSpan, _this = this,
+        positional = A._setArrayType([], type$.JSArray_Value),
+        positionalNodes = A._setArrayType([], type$.JSArray_AstNode);
+      for (t1 = $arguments.positional, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        expression = t1[_i];
+        nodeForSpan = _this._expressionNode$1(expression);
+        positional.push(_this._withoutSlash$2(expression.accept$1(_this), nodeForSpan));
+        positionalNodes.push(nodeForSpan);
+      }
+      t1 = type$.String;
+      named = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value);
+      t2 = type$.AstNode;
+      namedNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      for (t3 = A.MapExtensions_get_pairs($arguments.named, t1, type$.Expression), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        $name = t4._0;
+        value = t4._1;
+        nodeForSpan = _this._expressionNode$1(value);
+        named.$indexSet(0, $name, _this._withoutSlash$2(value.accept$1(_this), nodeForSpan));
+        namedNodes.$indexSet(0, $name, nodeForSpan);
+      }
+      restArgs = $arguments.rest;
+      if (restArgs == null)
+        return new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, B.ListSeparator_undecided_null_undecided]);
+      rest = restArgs.accept$1(_this);
+      restNodeForSpan = _this._expressionNode$1(restArgs);
+      if (rest instanceof A.SassMap) {
+        _this._addRestMap$4(named, rest, restArgs, new A._EvaluateVisitor__evaluateArguments_closure());
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t4 = rest._map$_contents, t4 = J.get$iterator$ax(t4.get$keys(t4)), t5 = type$.SassString; t4.moveNext$0();)
+          t3.$indexSet(0, t5._as(t4.get$current(t4))._string$_text, restNodeForSpan);
+        namedNodes.addAll$1(0, t3);
+        separator = B.ListSeparator_undecided_null_undecided;
+      } else if (rest instanceof A.SassList) {
+        t3 = rest._list$_contents;
+        B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t3, new A._EvaluateVisitor__evaluateArguments_closure0(_this, restNodeForSpan), A._arrayInstanceType(t3)._eval$1("MappedListIterable<1,Value>")));
+        B.JSArray_methods.addAll$1(positionalNodes, A.List_List$filled(t3.length, restNodeForSpan, false, t2));
+        separator = rest._separator;
+        if (rest instanceof A.SassArgumentList) {
+          rest._wereKeywordsAccessed = true;
+          rest._keywords.forEach$1(0, new A._EvaluateVisitor__evaluateArguments_closure1(_this, named, restNodeForSpan, namedNodes));
+        }
+      } else {
+        positional.push(_this._withoutSlash$2(rest, restNodeForSpan));
+        positionalNodes.push(restNodeForSpan);
+        separator = B.ListSeparator_undecided_null_undecided;
+      }
+      keywordRestArgs = $arguments.keywordRest;
+      if (keywordRestArgs == null)
+        return new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+      keywordRest = keywordRestArgs.accept$1(_this);
+      keywordRestNodeForSpan = _this._expressionNode$1(keywordRestArgs);
+      if (keywordRest instanceof A.SassMap) {
+        _this._addRestMap$4(named, keywordRest, keywordRestArgs, new A._EvaluateVisitor__evaluateArguments_closure2());
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t2 = keywordRest._map$_contents, t2 = J.get$iterator$ax(t2.get$keys(t2)), t3 = type$.SassString; t2.moveNext$0();)
+          t1.$indexSet(0, t3._as(t2.get$current(t2))._string$_text, keywordRestNodeForSpan);
+        namedNodes.addAll$1(0, t1);
+        return new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+      } else
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs.get$span(keywordRestArgs)));
+    },
+    _evaluateMacroArguments$1(invocation) {
+      var t2, positional, named, rest, restNodeForSpan, keywordRestArgs_, keywordRest, keywordRestNodeForSpan, _this = this,
+        t1 = invocation.$arguments,
+        restArgs_ = t1.rest;
+      if (restArgs_ == null)
+        return new A._Record_2(t1.positional, t1.named);
+      t2 = t1.positional;
+      positional = A._setArrayType(t2.slice(0), A._arrayInstanceType(t2));
+      named = A.LinkedHashMap_LinkedHashMap$of(t1.named, type$.String, type$.Expression);
+      rest = restArgs_.accept$1(_this);
+      restNodeForSpan = _this._expressionNode$1(restArgs_);
+      if (rest instanceof A.SassMap)
+        _this._addRestMap$4(named, rest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure(restArgs_));
+      else if (rest instanceof A.SassList) {
+        t2 = rest._list$_contents;
+        B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t2, new A._EvaluateVisitor__evaluateMacroArguments_closure0(_this, restNodeForSpan, restArgs_), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,Expression>")));
+        if (rest instanceof A.SassArgumentList) {
+          rest._wereKeywordsAccessed = true;
+          rest._keywords.forEach$1(0, new A._EvaluateVisitor__evaluateMacroArguments_closure1(_this, named, restNodeForSpan, restArgs_));
+        }
+      } else
+        positional.push(new A.ValueExpression(_this._withoutSlash$2(rest, restNodeForSpan), restArgs_.get$span(restArgs_)));
+      keywordRestArgs_ = t1.keywordRest;
+      if (keywordRestArgs_ == null)
+        return new A._Record_2(positional, named);
+      keywordRest = keywordRestArgs_.accept$1(_this);
+      keywordRestNodeForSpan = _this._expressionNode$1(keywordRestArgs_);
+      if (keywordRest instanceof A.SassMap) {
+        _this._addRestMap$4(named, keywordRest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure2(_this, keywordRestNodeForSpan, keywordRestArgs_));
+        return new A._Record_2(positional, named);
+      } else
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs_.get$span(keywordRestArgs_)));
+    },
+    _addRestMap$1$4(values, map, nodeWithSpan, convert) {
+      map._map$_contents.forEach$1(0, new A._EvaluateVisitor__addRestMap_closure(this, values, convert, this._expressionNode$1(nodeWithSpan), map, nodeWithSpan));
+    },
+    _addRestMap$4(values, map, nodeWithSpan, convert) {
+      return this._addRestMap$1$4(values, map, nodeWithSpan, convert, type$.dynamic);
+    },
+    _verifyArguments$4(positional, named, $arguments, nodeWithSpan) {
+      return this._addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__verifyArguments_closure($arguments, positional, named));
+    },
+    visitSelectorExpression$1(node) {
+      var t1 = this._styleRuleIgnoringAtRoot;
+      t1 = t1 == null ? null : t1.originalSelector.get$asSassList();
+      return t1 == null ? B.C__SassNull : t1;
+    },
+    visitStringExpression$1(node) {
+      var t1, t2, t3, t4, _i, value, t5, _0_0, text, _this = this,
+        oldInSupportsDeclaration = _this._inSupportsDeclaration;
+      _this._inSupportsDeclaration = false;
+      t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = node.text.contents, t3 = t2.length, t4 = type$.Expression, _i = 0; _i < t3; ++_i) {
+        value = t2[_i];
+        $label0$0: {
+          if (typeof value == "string") {
+            t5 = value;
+            break $label0$0;
+          }
+          if (t4._is(value)) {
+            _0_0 = value.accept$1(_this);
+            $label1$1: {
+              if (_0_0 instanceof A.SassString) {
+                text = _0_0._string$_text;
+                t5 = text;
+                break $label1$1;
+              }
+              t5 = _this._evaluate$_serialize$3$quote(_0_0, value, false);
+              break $label1$1;
+            }
+            break $label0$0;
+          }
+          t5 = A.throwExpression(A.UnsupportedError$("Unknown interpolation value " + A.S(value)));
+        }
+        t1.push(t5);
+      }
+      t1 = B.JSArray_methods.join$0(t1);
+      _this._inSupportsDeclaration = oldInSupportsDeclaration;
+      return new A.SassString(t1, node.hasQuotes);
+    },
+    visitSupportsExpression$1(expression) {
+      return new A.SassString(this._visitSupportsCondition$1(expression.condition), false);
+    },
+    visitCssAtRule$1(node) {
+      var wasInKeyframes, wasInUnknownAtRule, t1, _this = this;
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.At_rul, node.span));
+      if (node.isChildless) {
+        _this._assertInModule$2(_this.__parent, "__parent").addChild$1(A.ModifiableCssAtRule$(node.name, node.span, true, node.value));
+        return;
+      }
+      wasInKeyframes = _this._inKeyframes;
+      wasInUnknownAtRule = _this._inUnknownAtRule;
+      t1 = node.name;
+      if (A.unvendor(t1.value) === "keyframes")
+        _this._inKeyframes = true;
+      else
+        _this._inUnknownAtRule = true;
+      _this._withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$(t1, node.span, false, node.value), new A._EvaluateVisitor_visitCssAtRule_closure(_this, node), false, new A._EvaluateVisitor_visitCssAtRule_closure0(), type$.ModifiableCssAtRule, type$.Null);
+      _this._inUnknownAtRule = wasInUnknownAtRule;
+      _this._inKeyframes = wasInKeyframes;
+    },
+    visitCssComment$1(node) {
+      var _this = this,
+        _s8_ = "__parent",
+        _s13_ = "_endOfImports";
+      if (_this._assertInModule$2(_this.__parent, _s8_) === _this._assertInModule$2(_this.__root, "_root") && _this._assertInModule$2(_this.__endOfImports, _s13_) === J.get$length$asx(_this._assertInModule$2(_this.__root, "_root").children._collection$_source))
+        _this.__endOfImports = _this._assertInModule$2(_this.__endOfImports, _s13_) + 1;
+      _this._assertInModule$2(_this.__parent, _s8_).addChild$1(new A.ModifiableCssComment(node.text, node.span));
+    },
+    visitCssDeclaration$1(node) {
+      this._assertInModule$2(this.__parent, "__parent").addChild$1(A.ModifiableCssDeclaration$(node.name, node.value, node.span, node.parsedAsCustomProperty, node.valueSpanForMap));
+    },
+    visitCssImport$1(node) {
+      var t1, _this = this,
+        _s8_ = "__parent",
+        _s5_ = "_root",
+        _s13_ = "_endOfImports",
+        modifiableNode = new A.ModifiableCssImport(node.url, node.modifiers, node.span);
+      if (_this._assertInModule$2(_this.__parent, _s8_) !== _this._assertInModule$2(_this.__root, _s5_))
+        _this._assertInModule$2(_this.__parent, _s8_).addChild$1(modifiableNode);
+      else if (_this._assertInModule$2(_this.__endOfImports, _s13_) === J.get$length$asx(_this._assertInModule$2(_this.__root, _s5_).children._collection$_source)) {
+        _this._assertInModule$2(_this.__root, _s5_).addChild$1(modifiableNode);
+        _this.__endOfImports = _this._assertInModule$2(_this.__endOfImports, _s13_) + 1;
+      } else {
+        t1 = _this._outOfOrderImports;
+        (t1 == null ? _this._outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport) : t1).push(modifiableNode);
+      }
+    },
+    visitCssKeyframeBlock$1(node) {
+      this._withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$(node.selector, node.span), new A._EvaluateVisitor_visitCssKeyframeBlock_closure(this, node), false, new A._EvaluateVisitor_visitCssKeyframeBlock_closure0(), type$.ModifiableCssKeyframeBlock, type$.Null);
+    },
+    visitCssMediaRule$1(node) {
+      var mergedQueries, t1, mergedSources, t2, t3, _this = this;
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Media_, node.span));
+      mergedQueries = A.NullableExtension_andThen(_this._mediaQueries, new A._EvaluateVisitor_visitCssMediaRule_closure(_this, node));
+      t1 = mergedQueries == null;
+      if (!t1 && J.get$isEmpty$asx(mergedQueries))
+        return;
+      if (t1)
+        mergedSources = B.Set_empty1;
+      else {
+        t2 = _this._mediaQuerySources;
+        t2.toString;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery);
+        t3 = _this._mediaQueries;
+        t3.toString;
+        t2.addAll$1(0, t3);
+        t2.addAll$1(0, node.queries);
+        mergedSources = t2;
+      }
+      t1 = t1 ? node.queries : mergedQueries;
+      _this._withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$(t1, node.span), new A._EvaluateVisitor_visitCssMediaRule_closure0(_this, mergedQueries, node, mergedSources), false, new A._EvaluateVisitor_visitCssMediaRule_closure1(mergedSources), type$.ModifiableCssMediaRule, type$.Null);
+    },
+    visitCssStyleRule$1(node) {
+      var t1, styleRule, t2, nest, t3, originalSelector, rule, oldAtRootExcludingStyleRule, _0_1, lastChild, _this = this, _null = null,
+        _s8_ = "__parent";
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Style_n, node.span));
+      else if (_this._inKeyframes && _this._assertInModule$2(_this.__parent, _s8_) instanceof A.ModifiableCssKeyframeBlock)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Style_k, node.span));
+      t1 = _this._atRootExcludingStyleRule;
+      styleRule = t1 ? _null : _this._styleRuleIgnoringAtRoot;
+      t2 = t1 ? _null : _this._styleRuleIgnoringAtRoot;
+      t2 = t2 == null ? _null : t2.fromPlainCss;
+      nest = t2 !== true;
+      t2 = node._style_rule$_selector._box$_inner;
+      if (nest) {
+        t2 = t2.value;
+        t3 = styleRule == null ? _null : styleRule.originalSelector;
+        originalSelector = t2.nestWithin$3$implicitParent$preserveParentSelectors(t3, !t1, node.fromPlainCss);
+      } else
+        originalSelector = t2.value;
+      rule = A.ModifiableCssStyleRule$(_this._assertInModule$2(_this.__extensionStore, "_extensionStore").addSelector$2(originalSelector, _this._mediaQueries), node.span, node.fromPlainCss, originalSelector);
+      oldAtRootExcludingStyleRule = _this._atRootExcludingStyleRule;
+      _this._atRootExcludingStyleRule = false;
+      t1 = nest ? new A._EvaluateVisitor_visitCssStyleRule_closure() : _null;
+      _this._withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitCssStyleRule_closure0(_this, rule, node), false, t1, type$.ModifiableCssStyleRule, type$.Null);
+      _this._atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+      t1 = _this._assertInModule$2(_this.__parent, _s8_).children._collection$_source;
+      t2 = J.getInterceptor$asx(t1);
+      _0_1 = t2.get$length(t1);
+      if (_0_1 >= 1) {
+        lastChild = t2.elementAt$1(t1, _0_1 - 1);
+        t1 = styleRule == null;
+      } else {
+        lastChild = _null;
+        t1 = false;
+      }
+      if (t1)
+        lastChild.isGroupEnd = true;
+    },
+    visitCssStylesheet$1(node) {
+      var t1;
+      for (t1 = J.get$iterator$ax(node.get$children(node)); t1.moveNext$0();)
+        t1.get$current(t1).accept$1(this);
+    },
+    visitCssSupportsRule$1(node) {
+      var _this = this;
+      if (_this._declarationName != null)
+        throw A.wrapException(_this._evaluate$_exception$2(string$.Suppor, node.span));
+      _this._withParent$2$4$scopeWhen$through(A.ModifiableCssSupportsRule$(node.condition, node.span), new A._EvaluateVisitor_visitCssSupportsRule_closure(_this, node), false, new A._EvaluateVisitor_visitCssSupportsRule_closure0(), type$.ModifiableCssSupportsRule, type$.Null);
+    },
+    _handleReturn$1$2(list, callback) {
+      var t1, _i, _0_0;
+      for (t1 = list.length, _i = 0; _i < list.length; list.length === t1 || (0, A.throwConcurrentModificationError)(list), ++_i) {
+        _0_0 = callback.call$1(list[_i]);
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    _handleReturn$2(list, callback) {
+      return this._handleReturn$1$2(list, callback, type$.dynamic);
+    },
+    _withEnvironment$1$2(environment, callback) {
+      var result,
+        oldEnvironment = this._environment;
+      this._environment = environment;
+      result = callback.call$0();
+      this._environment = oldEnvironment;
+      return result;
+    },
+    _withEnvironment$2(environment, callback) {
+      return this._withEnvironment$1$2(environment, callback, type$.dynamic);
+    },
+    _interpolationToValue$3$trim$warnForColor(interpolation, trim, warnForColor) {
+      var result = this._performInterpolation$2$warnForColor(interpolation, warnForColor),
+        t1 = trim ? A.trimAscii(result, true) : result;
+      return new A.CssValue(t1, interpolation.span, type$.CssValue_String);
+    },
+    _interpolationToValue$1(interpolation) {
+      return this._interpolationToValue$3$trim$warnForColor(interpolation, false, false);
+    },
+    _interpolationToValue$2$warnForColor(interpolation, warnForColor) {
+      return this._interpolationToValue$3$trim$warnForColor(interpolation, false, warnForColor);
+    },
+    _performInterpolation$2$warnForColor(interpolation, warnForColor) {
+      return this._performInterpolationHelper$3$sourceMap$warnForColor(interpolation, false, warnForColor)._0;
+    },
+    _performInterpolation$1(interpolation) {
+      return this._performInterpolation$2$warnForColor(interpolation, false);
+    },
+    _performInterpolationWithMap$2$warnForColor(interpolation, warnForColor) {
+      var _0_0 = this._performInterpolationHelper$3$sourceMap$warnForColor(interpolation, true, true),
+        map = _0_0._1;
+      map.toString;
+      return new A._Record_2(_0_0._0, map);
+    },
+    _performInterpolationHelper$3$sourceMap$warnForColor(interpolation, sourceMap, warnForColor) {
+      var t1, t2, t3, t4, t5, t6, t7, first, _i, t8, value, result, t9, result0, _this = this, _null = null,
+        targetLocations = sourceMap ? A._setArrayType([], type$.JSArray_SourceLocation) : _null,
+        oldInSupportsDeclaration = _this._inSupportsDeclaration;
+      _this._inSupportsDeclaration = false;
+      for (t1 = interpolation.contents, t2 = t1.length, t3 = type$.Expression, t4 = targetLocations == null, t5 = type$.JSArray_Object, t6 = interpolation.span, t7 = type$.Object, first = true, _i = 0, t8 = ""; _i < t2; ++_i, first = false) {
+        value = t1[_i];
+        if (!first)
+          if (!t4)
+            targetLocations.push(A.SourceLocation$(t8.length, _null, _null, _null));
+        if (typeof value == "string") {
+          t8 += value;
+          continue;
+        }
+        t3._as(value);
+        result = value.accept$1(_this);
+        if (warnForColor && $.$get$namesByColor().containsKey$1(result)) {
+          t9 = A._setArrayType([""], t5);
+          result0 = A.List_List$from(t9, false, t7);
+          result0.fixed$length = Array;
+          result0.immutable$list = Array;
+          result0 = new A.Interpolation(result0, t6);
+          result0.Interpolation$2(t9, t6);
+          t9 = $.$get$namesByColor();
+          _this._warn$2(string$.You_pr + A.S(t9.$index(0, result)) + string$.x20in_in + result.toString$0(0) + string$.x2c_whicw + A.S(t9.$index(0, result)) + string$.x22x29__If + new A.BinaryOperationExpression(B.BinaryOperator_u15, new A.StringExpression(result0, true), value, false).toString$0(0) + "'.", value.get$span(value));
+        }
+        t8 += _this._evaluate$_serialize$3$quote(result, value, false);
+      }
+      _this._inSupportsDeclaration = oldInSupportsDeclaration;
+      return new A._Record_2(t8.charCodeAt(0) == 0 ? t8 : t8, A.NullableExtension_andThen(targetLocations, new A._EvaluateVisitor__performInterpolationHelper_closure(interpolation)));
+    },
+    _evaluate$_serialize$3$quote(value, nodeWithSpan, quote) {
+      return this._addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__serialize_closure(value, quote));
+    },
+    _evaluate$_serialize$2(value, nodeWithSpan) {
+      return this._evaluate$_serialize$3$quote(value, nodeWithSpan, true);
+    },
+    _expressionNode$1(expression) {
+      var t1;
+      if (expression instanceof A.VariableExpression) {
+        t1 = this._addExceptionSpan$2(expression, new A._EvaluateVisitor__expressionNode_closure(this, expression));
+        return t1 == null ? expression : t1;
+      } else
+        return expression;
+    },
+    _withParent$2$4$scopeWhen$through(node, callback, scopeWhen, through, $S, $T) {
+      var t1, result, _this = this;
+      _this._addChild$2$through(node, through);
+      t1 = _this._assertInModule$2(_this.__parent, "__parent");
+      _this.__parent = node;
+      result = _this._environment.scope$1$2$when(callback, scopeWhen, $T);
+      _this.__parent = t1;
+      return result;
+    },
+    _withParent$2$3$scopeWhen(node, callback, scopeWhen, $S, $T) {
+      return this._withParent$2$4$scopeWhen$through(node, callback, scopeWhen, null, $S, $T);
+    },
+    _withParent$2$2(node, callback, $S, $T) {
+      return this._withParent$2$4$scopeWhen$through(node, callback, true, null, $S, $T);
+    },
+    _addChild$2$through(node, through) {
+      var _0_0, grandparent, t1,
+        $parent = this._assertInModule$2(this.__parent, "__parent");
+      if (through != null) {
+        for (; through.call$1($parent); $parent = _0_0) {
+          _0_0 = $parent._parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$(string$.throug + node.toString$0(0) + ".", null));
+        }
+        if ($parent.get$hasFollowingSibling()) {
+          grandparent = $parent._parent;
+          t1 = grandparent.children;
+          if ($parent.equalsIgnoringChildren$1(t1.get$last(t1)))
+            $parent = type$.ModifiableCssParentNode._as(t1.get$last(t1));
+          else {
+            $parent = $parent.copyWithoutChildren$0();
+            grandparent.addChild$1($parent);
+          }
+        }
+      }
+      $parent.addChild$1(node);
+    },
+    _addChild$1(node) {
+      return this._addChild$2$through(node, null);
+    },
+    _withStyleRule$1$2(rule, callback) {
+      var result,
+        oldRule = this._styleRuleIgnoringAtRoot;
+      this._styleRuleIgnoringAtRoot = rule;
+      result = callback.call$0();
+      this._styleRuleIgnoringAtRoot = oldRule;
+      return result;
+    },
+    _withStyleRule$2(rule, callback) {
+      return this._withStyleRule$1$2(rule, callback, type$.dynamic);
+    },
+    _withMediaQueries$1$3(queries, sources, callback) {
+      var result, _this = this,
+        oldMediaQueries = _this._mediaQueries,
+        oldSources = _this._mediaQuerySources;
+      _this._mediaQueries = queries;
+      _this._mediaQuerySources = sources;
+      result = callback.call$0();
+      _this._mediaQueries = oldMediaQueries;
+      _this._mediaQuerySources = oldSources;
+      return result;
+    },
+    _withMediaQueries$3(queries, sources, callback) {
+      return this._withMediaQueries$1$3(queries, sources, callback, type$.dynamic);
+    },
+    _withStackFrame$1$3(member, nodeWithSpan, callback) {
+      var oldMember, result, _this = this,
+        t1 = _this._stack;
+      t1.push(new A._Record_2(_this._member, nodeWithSpan));
+      oldMember = _this._member;
+      _this._member = member;
+      result = callback.call$0();
+      _this._member = oldMember;
+      t1.pop();
+      return result;
+    },
+    _withStackFrame$3(member, nodeWithSpan, callback) {
+      return this._withStackFrame$1$3(member, nodeWithSpan, callback, type$.dynamic);
+    },
+    _withoutSlash$2(value, nodeForSpan) {
+      var t1;
+      if (value instanceof A.SassNumber)
+        t1 = value.asSlash != null;
+      else
+        t1 = false;
+      if (t1)
+        this._warn$3(string$.Using__i + A.S(new A._EvaluateVisitor__withoutSlash_recommendation().call$1(value)) + string$.x0a_Morex20, nodeForSpan.get$span(nodeForSpan), B.Deprecation_oJv);
+      return value.withoutSlash$0();
+    },
+    _stackFrame$2(member, span) {
+      return A.frameForSpan(span, member, A.NullableExtension_andThen(span.get$sourceUrl(span), new A._EvaluateVisitor__stackFrame_closure(this)));
+    },
+    _evaluate$_stackTrace$1(span) {
+      var t2, t3, _i, t4, nodeWithSpan, _this = this,
+        t1 = A._setArrayType([], type$.JSArray_Frame);
+      for (t2 = _this._stack, t3 = t2.length, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        t4 = t2[_i];
+        nodeWithSpan = t4._1;
+        t1.push(_this._stackFrame$2(t4._0, nodeWithSpan.get$span(nodeWithSpan)));
+      }
+      if (span != null)
+        t1.push(_this._stackFrame$2(_this._member, span));
+      return A.Trace$(new A.ReversedListIterable(t1, type$.ReversedListIterable_Frame), null);
+    },
+    _evaluate$_stackTrace$0() {
+      return this._evaluate$_stackTrace$1(null);
+    },
+    _warn$3(message, span, deprecation) {
+      var t1, trace, _this = this;
+      if (_this._quietDeps)
+        if (!_this._inDependency) {
+          t1 = _this._currentCallable;
+          t1 = t1 == null ? null : t1.inDependency;
+          t1 = t1 === true;
+        } else
+          t1 = true;
+      else
+        t1 = false;
+      if (t1)
+        return;
+      if (!_this._warningsEmitted.add$1(0, new A._Record_2(message, span)))
+        return;
+      trace = _this._evaluate$_stackTrace$1(span);
+      t1 = _this._evaluate$_logger;
+      if (deprecation == null)
+        t1.warn$3$span$trace(0, message, span, trace);
+      else
+        A.WarnForDeprecation_warnForDeprecation(t1, deprecation, message, span, trace);
+    },
+    _warn$2(message, span) {
+      return this._warn$3(message, span, null);
+    },
+    _evaluate$_exception$2(message, span) {
+      var t1, t2;
+      if (span == null) {
+        t1 = B.JSArray_methods.get$last(this._stack)._1;
+        t1 = t1.get$span(t1);
+      } else
+        t1 = span;
+      t2 = this._evaluate$_stackTrace$1(span);
+      return new A.SassRuntimeException(t2, B.Set_empty, message, t1);
+    },
+    _evaluate$_exception$1(message) {
+      return this._evaluate$_exception$2(message, null);
+    },
+    _multiSpanException$3(message, primaryLabel, secondaryLabels) {
+      var t1 = B.JSArray_methods.get$last(this._stack)._1;
+      return A.MultiSpanSassRuntimeException$(message, t1.get$span(t1), primaryLabel, secondaryLabels, this._evaluate$_stackTrace$0(), null);
+    },
+    _addExceptionSpan$1$3$addStackFrame(nodeWithSpan, callback, addStackFrame) {
+      var error, stackTrace, t1, exception;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassScriptException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error.withSpan$1(nodeWithSpan.get$span(nodeWithSpan));
+          A.throwWithTrace(t1.withTrace$1(this._evaluate$_stackTrace$1(addStackFrame ? nodeWithSpan.get$span(nodeWithSpan) : null)), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _addExceptionSpan$2(nodeWithSpan, callback) {
+      return this._addExceptionSpan$1$3$addStackFrame(nodeWithSpan, callback, true, type$.dynamic);
+    },
+    _addExceptionSpan$3$addStackFrame(nodeWithSpan, callback, addStackFrame) {
+      return this._addExceptionSpan$1$3$addStackFrame(nodeWithSpan, callback, addStackFrame, type$.dynamic);
+    },
+    _addExceptionTrace$1$1(callback) {
+      var error, stackTrace, t1, exception, t2;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassRuntimeException._is(t1))
+          throw exception;
+        else if (t1 instanceof A.SassException) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error;
+          t2 = J.getInterceptor$z(t1);
+          A.throwWithTrace(error.withTrace$1(this._evaluate$_stackTrace$1(A.SourceSpanException.prototype.get$span.call(t2, t1))), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _addExceptionTrace$1(callback) {
+      return this._addExceptionTrace$1$1(callback, type$.dynamic);
+    },
+    _addErrorSpan$1$2(nodeWithSpan, callback) {
+      var error, stackTrace, t1, exception, t2, t3;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassRuntimeException._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          if (!B.JSString_methods.startsWith$1(J.get$span$z(error).get$text(), "@error"))
+            throw exception;
+          t1 = error._span_exception$_message;
+          t2 = nodeWithSpan.get$span(nodeWithSpan);
+          t3 = this._evaluate$_stackTrace$0();
+          A.throwWithTrace(new A.SassRuntimeException(t3, B.Set_empty, t1, t2), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _addErrorSpan$2(nodeWithSpan, callback) {
+      return this._addErrorSpan$1$2(nodeWithSpan, callback, type$.dynamic);
+    }
+  };
+  A._EvaluateVisitor_closure.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string$_text, "_", "-");
+      return t1.globalVariableExists$2$namespace(t2, module == null ? null : module._string$_text) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure0.prototype = {
+    call$1($arguments) {
+      var variable = J.$index$asx($arguments, 0).assertString$1("name"),
+        t1 = this.$this._environment;
+      return t1.getVariable$1(A.stringReplaceAllUnchecked(variable._string$_text, "_", "-")) != null ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure1.prototype = {
+    call$1($arguments) {
+      var module, t2, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._environment;
+      t3 = variable._string$_text;
+      t4 = A.stringReplaceAllUnchecked(t3, "_", "-");
+      return t2.getFunction$2$namespace(t4, module == null ? null : module._string$_text) != null || t1._builtInFunctions.containsKey$1(t3) ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure2.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string$_text, "_", "-");
+      return t1.getMixin$2$namespace(t2, module == null ? null : module._string$_text) != null ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure3.prototype = {
+    call$1($arguments) {
+      var t1 = this.$this._environment;
+      if (!t1._inMixin)
+        throw A.wrapException(A.SassScriptException$(string$.conten, null));
+      return t1._content != null ? B.SassBoolean_true : B.SassBoolean_false;
+    },
+    $signature: 20
+  };
+  A._EvaluateVisitor_closure4.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string$_text,
+        module = this.$this._environment._environment$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs(module.get$variables(), type$.String, t1), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString(t4._0, true), t4._1);
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._EvaluateVisitor_closure5.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string$_text,
+        module = this.$this._environment._environment$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs(module.get$functions(module), type$.String, type$.Callable), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString(t4._0, true), new A.SassFunction(t4._1));
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._EvaluateVisitor_closure6.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string$_text,
+        module = this.$this._environment._environment$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs(module.get$mixins(), type$.String, type$.Callable), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString(t4._0, true), new A.SassMixin(t4._1));
+      }
+      return new A.SassMap(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 36
+  };
+  A._EvaluateVisitor_closure7.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name"),
+        css = t1.$index($arguments, 1).get$isTruthy();
+      t1 = t1.$index($arguments, 2).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      if (css) {
+        if (module != null)
+          throw A.wrapException(string$.x24css_a);
+        return new A.SassFunction(new A.PlainCssCallable($name._string$_text));
+      }
+      t1 = this.$this;
+      t2 = t1._callableNode;
+      t2.toString;
+      callable = t1._addExceptionSpan$2(t2, new A._EvaluateVisitor__closure2(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Function not found: " + $name.toString$0(0));
+      return new A.SassFunction(callable);
+    },
+    $signature: 165
+  };
+  A._EvaluateVisitor__closure2.prototype = {
+    call$0() {
+      var local,
+        normalizedName = A.stringReplaceAllUnchecked(this.name._string$_text, "_", "-"),
+        t1 = this.module,
+        namespace = t1 == null ? null : t1._string$_text;
+      t1 = this.$this;
+      local = t1._environment.getFunction$2$namespace(normalizedName, namespace);
+      if (local != null || namespace != null)
+        return local;
+      return t1._builtInFunctions.$index(0, normalizedName);
+    },
+    $signature: 77
+  };
+  A._EvaluateVisitor_closure8.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._callableNode;
+      t2.toString;
+      callable = t1._addExceptionSpan$2(t2, new A._EvaluateVisitor__closure1(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Mixin not found: " + $name.toString$0(0));
+      return new A.SassMixin(callable);
+    },
+    $signature: 166
+  };
+  A._EvaluateVisitor__closure1.prototype = {
+    call$0() {
+      var t1 = this.$this._environment,
+        t2 = A.stringReplaceAllUnchecked(this.name._string$_text, "_", "-"),
+        t3 = this.module;
+      return t1.getMixin$2$namespace(t2, t3 == null ? null : t3._string$_text);
+    },
+    $signature: 77
+  };
+  A._EvaluateVisitor_closure9.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, invocation, callableNode, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $function = t1.$index($arguments, 0),
+        args = type$.SassArgumentList._as(t1.$index($arguments, 1));
+      t1 = this.$this;
+      t2 = t1._callableNode;
+      t2.toString;
+      t3 = A._setArrayType([], type$.JSArray_Expression);
+      t4 = type$.String;
+      t5 = type$.Expression;
+      t6 = t2.get$span(t2);
+      t7 = t2.get$span(t2);
+      args._wereKeywordsAccessed = true;
+      t8 = args._keywords;
+      if (t8.get$isEmpty(t8))
+        t2 = null;
+      else {
+        t9 = type$.Value;
+        t10 = A.LinkedHashMap_LinkedHashMap$_empty(t9, t9);
+        for (args._wereKeywordsAccessed = true, t8 = A.MapExtensions_get_pairs(t8, t4, t9), t8 = t8.get$iterator(t8); t8.moveNext$0();) {
+          t11 = t8.get$current(t8);
+          t10.$indexSet(0, new A.SassString(t11._0, false), t11._1);
+        }
+        t2 = new A.ValueExpression(new A.SassMap(A.ConstantMap_ConstantMap$from(t10, t9, t9)), t2.get$span(t2));
+      }
+      invocation = new A.ArgumentInvocation(A.List_List$unmodifiable(t3, t5), A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t4, t5), new A.ValueExpression(args, t7), t2, t6);
+      if ($function instanceof A.SassString) {
+        A.warnForDeprecation(string$.Passina + $function.toString$0(0) + "))", B.Deprecation_gkc);
+        callableNode = t1._callableNode;
+        t2 = $function._string$_text;
+        t3 = callableNode.get$span(callableNode);
+        return t1.visitFunctionExpression$1(new A.FunctionExpression(null, A.stringReplaceAllUnchecked(t2, "_", "-"), t2, invocation, t3));
+      }
+      callable = $function.assertFunction$1("function").callable;
+      if (type$.Callable._is(callable)) {
+        t2 = t1._callableNode;
+        t2.toString;
+        return t1._runFunctionCallable$3(invocation, callable, t2);
+      } else
+        throw A.wrapException(A.SassScriptException$("The function " + callable.get$name(callable) + string$.x20is_as, null));
+    },
+    $signature: 6
+  };
+  A._EvaluateVisitor_closure10.prototype = {
+    call$1($arguments) {
+      var withMap, t2, values, configuration, t3,
+        t1 = J.getInterceptor$asx($arguments),
+        url = A.Uri_parse(t1.$index($arguments, 0).assertString$1("url")._string$_text);
+      t1 = t1.$index($arguments, 1).get$realNull();
+      withMap = t1 == null ? null : t1.assertMap$1("with")._map$_contents;
+      t1 = this.$this;
+      t2 = t1._callableNode;
+      t2.toString;
+      if (withMap != null) {
+        values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue);
+        withMap.forEach$1(0, new A._EvaluateVisitor__closure(values, t2.get$span(t2), t2));
+        configuration = new A.ExplicitConfiguration(t2, values, null);
+      } else
+        configuration = B.Configuration_Map_empty_null;
+      t3 = t2.get$span(t2);
+      t1._loadModule$7$baseUrl$configuration$namesInErrors(url, "load-css()", t2, new A._EvaluateVisitor__closure0(t1), t3.get$sourceUrl(t3), configuration, true);
+      t1._assertConfigurationIsEmpty$2$nameInError(configuration, true);
+    },
+    $signature: 185
+  };
+  A._EvaluateVisitor__closure.prototype = {
+    call$2(variable, value) {
+      var t1 = variable.assertString$1("with key"),
+        $name = A.stringReplaceAllUnchecked(t1._string$_text, "_", "-");
+      t1 = this.values;
+      if (t1.containsKey$1($name))
+        throw A.wrapException("The variable $" + $name + " was configured twice.");
+      t1.$indexSet(0, $name, new A.ConfiguredValue(value, this.span, this.callableNode));
+    },
+    $signature: 102
+  };
+  A._EvaluateVisitor__closure0.prototype = {
+    call$2(module, _) {
+      var t1 = this.$this;
+      return t1._combineCss$2$clone(module, true).accept$1(t1);
+    },
+    $signature: 78
+  };
+  A._EvaluateVisitor_closure11.prototype = {
+    call$1($arguments) {
+      var callableNode, t2, t3, t4, t5, callable, $content,
+        t1 = J.getInterceptor$asx($arguments),
+        mixin = t1.$index($arguments, 0),
+        args = type$.SassArgumentList._as(t1.$index($arguments, 1));
+      t1 = this.$this;
+      callableNode = t1._callableNode;
+      t2 = callableNode.get$span(callableNode);
+      t3 = callableNode.get$span(callableNode);
+      t4 = type$.Expression;
+      t5 = A.List_List$unmodifiable(B.List_empty9, t4);
+      t4 = A.ConstantMap_ConstantMap$from(B.Map_empty6, type$.String, t4);
+      callable = mixin.assertMixin$1("mixin").callable;
+      $content = t1._environment._content;
+      if (type$.Callable._is(callable))
+        t1._applyMixin$5(callable, $content, new A.ArgumentInvocation(t5, t4, new A.ValueExpression(args, t3), null, t2), callableNode, callableNode);
+      else
+        throw A.wrapException(A.SassScriptException$("The mixin " + callable.get$name(callable) + string$.x20is_as, null));
+    },
+    $signature: 185
+  };
+  A._EvaluateVisitor_run_closure.prototype = {
+    call$0() {
+      var module, _this = this,
+        t1 = _this.node,
+        t2 = t1.span,
+        _0_0 = t2.get$sourceUrl(t2),
+        url = null;
+      if (_0_0 != null) {
+        url = _0_0;
+        t2 = _this.$this;
+        t2._activeModules.$indexSet(0, url, null);
+        t2._loadedUrls.add$1(0, url);
+      }
+      t2 = _this.$this;
+      module = t2._addExceptionTrace$1(new A._EvaluateVisitor_run__closure(t2, _this.importer, t1));
+      return new A._Record_2_loadedUrls_stylesheet(t2._loadedUrls, t2._combineCss$1(module));
+    },
+    $signature: 305
+  };
+  A._EvaluateVisitor_run__closure.prototype = {
+    call$0() {
+      return this.$this._execute$2(this.importer, this.node);
+    },
+    $signature: 302
+  };
+  A._EvaluateVisitor_runExpression_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.expression;
+      return t1._withFakeStylesheet$3(this.importer, t2, new A._EvaluateVisitor_runExpression__closure(t1, t2));
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor_runExpression__closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1._addExceptionTrace$1(new A._EvaluateVisitor_runExpression___closure(t1, this.expression));
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor_runExpression___closure.prototype = {
+    call$0() {
+      return this.expression.accept$1(this.$this);
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor_runStatement_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.statement;
+      return t1._withFakeStylesheet$3(this.importer, t2, new A._EvaluateVisitor_runStatement__closure(t1, t2));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor_runStatement__closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1._addExceptionTrace$1(new A._EvaluateVisitor_runStatement___closure(t1, this.statement));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor_runStatement___closure.prototype = {
+    call$0() {
+      return this.statement.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__loadModule_closure.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_1.builtInModule, false);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__loadModule_closure0.prototype = {
+    call$0() {
+      var canonicalUrl, oldInDependency, t4, message, _this = this, t1 = {}, stylesheet = null, importer = null,
+        t2 = _this.$this,
+        t3 = _this.nodeWithSpan,
+        _1_0 = t2._loadStylesheet$3$baseUrl(_this.url.toString$0(0), t3.get$span(t3), _this.baseUrl);
+      stylesheet = _1_0._0;
+      importer = _1_0._1;
+      t4 = stylesheet.span;
+      canonicalUrl = t4.get$sourceUrl(t4);
+      if (canonicalUrl != null) {
+        t4 = t2._activeModules;
+        if (t4.containsKey$1(canonicalUrl)) {
+          if (_this.namesInErrors) {
+            t1 = canonicalUrl;
+            t3 = $.$get$context();
+            t1.toString;
+            message = "Module loop: " + t3.prettyUri$1(t1) + " is already being loaded.";
+          } else
+            message = string$.Modulel;
+          t1 = A.NullableExtension_andThen(t4.$index(0, canonicalUrl), new A._EvaluateVisitor__loadModule__closure(t2, message));
+          throw A.wrapException(t1 == null ? t2._evaluate$_exception$1(message) : t1);
+        } else
+          t4.$indexSet(0, canonicalUrl, t3);
+      }
+      t4 = t2._modules.containsKey$1(canonicalUrl);
+      oldInDependency = t2._inDependency;
+      t2._inDependency = _1_0._2;
+      t1.module = null;
+      try {
+        t1.module = t2._execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, _this.configuration, _this.namesInErrors, t3);
+      } finally {
+        t2._activeModules.remove$1(0, canonicalUrl);
+        t2._inDependency = oldInDependency;
+      }
+      t2._addExceptionSpan$3$addStackFrame(t3, new A._EvaluateVisitor__loadModule__closure0(t1, _this.callback, !t4), false);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__loadModule__closure.prototype = {
+    call$1(previousLoad) {
+      return this.$this._multiSpanException$3(this.message, "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 81
+  };
+  A._EvaluateVisitor__loadModule__closure0.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_0.module, this.firstLoad);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__execute_closure.prototype = {
+    call$0() {
+      var t3, t4, t5, t6, _this = this,
+        t1 = _this.$this,
+        oldImporter = t1._importer,
+        oldStylesheet = t1.__stylesheet,
+        oldRoot = t1.__root,
+        oldPreModuleComments = t1._preModuleComments,
+        oldParent = t1.__parent,
+        oldEndOfImports = t1.__endOfImports,
+        oldOutOfOrderImports = t1._outOfOrderImports,
+        oldExtensionStore = t1.__extensionStore,
+        t2 = t1._atRootExcludingStyleRule,
+        oldStyleRule = t2 ? null : t1._styleRuleIgnoringAtRoot,
+        oldMediaQueries = t1._mediaQueries,
+        oldDeclarationName = t1._declarationName,
+        oldInUnknownAtRule = t1._inUnknownAtRule,
+        oldInKeyframes = t1._inKeyframes,
+        oldConfiguration = t1._configuration;
+      t1._importer = _this.importer;
+      t3 = t1.__stylesheet = _this.stylesheet;
+      t4 = t3.span;
+      t5 = t1.__parent = t1.__root = A.ModifiableCssStylesheet$(t4);
+      t1.__endOfImports = 0;
+      t1._outOfOrderImports = null;
+      t1.__extensionStore = _this.extensionStore;
+      t1._declarationName = t1._mediaQueries = t1._styleRuleIgnoringAtRoot = null;
+      t1._inKeyframes = t1._atRootExcludingStyleRule = t1._inUnknownAtRule = false;
+      t6 = _this.configuration;
+      if (t6 != null)
+        t1._configuration = t6;
+      t1.visitStylesheet$1(t3);
+      t3 = t1._outOfOrderImports == null ? t5 : new A.CssStylesheet(new A.UnmodifiableListView(t1._addOutOfOrderImports$0(), type$.UnmodifiableListView_CssNode), t4);
+      _this.css.__late_helper$_value = t3;
+      _this.preModuleComments.__late_helper$_value = t1._preModuleComments;
+      t1._importer = oldImporter;
+      t1.__stylesheet = oldStylesheet;
+      t1.__root = oldRoot;
+      t1._preModuleComments = oldPreModuleComments;
+      t1.__parent = oldParent;
+      t1.__endOfImports = oldEndOfImports;
+      t1._outOfOrderImports = oldOutOfOrderImports;
+      t1.__extensionStore = oldExtensionStore;
+      t1._styleRuleIgnoringAtRoot = oldStyleRule;
+      t1._mediaQueries = oldMediaQueries;
+      t1._declarationName = oldDeclarationName;
+      t1._inUnknownAtRule = oldInUnknownAtRule;
+      t1._atRootExcludingStyleRule = t2;
+      t1._inKeyframes = oldInKeyframes;
+      t1._configuration = oldConfiguration;
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__combineCss_closure.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 130
+  };
+  A._EvaluateVisitor__combineCss_closure0.prototype = {
+    call$1(target) {
+      return !this.selectors.contains$1(0, target);
+    },
+    $signature: 14
+  };
+  A._EvaluateVisitor__combineCss_visitModule.prototype = {
+    call$1(module) {
+      var t1, t2, t3, t4, _i, upstream, _1_0, statements, index, _this = this;
+      if (!_this.seen.add$1(0, module))
+        return;
+      if (_this.clone)
+        module = module.cloneCss$0();
+      for (t1 = module.get$upstream(), t2 = t1.length, t3 = _this.css, t4 = _this.imports, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        upstream = t1[_i];
+        if (upstream.get$transitivelyContainsCss()) {
+          _1_0 = module.get$preModuleComments().$index(0, upstream);
+          if (_1_0 != null)
+            B.JSArray_methods.addAll$1(t3.length === 0 ? t4 : t3, _1_0);
+          _this.call$1(upstream);
+        }
+      }
+      _this.sorted.addFirst$1(module);
+      t1 = module.get$css(module);
+      statements = t1.get$children(t1);
+      index = _this.$this._indexAfterImports$1(statements);
+      t1 = J.getInterceptor$ax(statements);
+      B.JSArray_methods.addAll$1(t4, t1.getRange$2(statements, 0, index));
+      B.JSArray_methods.addAll$1(t3, t1.getRange$2(statements, index, t1.get$length(statements)));
+    },
+    $signature: 296
+  };
+  A._EvaluateVisitor__extendModules_closure.prototype = {
+    call$1(target) {
+      return !this.originalSelectors.contains$1(0, target);
+    },
+    $signature: 14
+  };
+  A._EvaluateVisitor__extendModules_closure0.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_ExtensionStore);
+    },
+    $signature: 169
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure0.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        t2 = t1._assertInModule$2(t1.__parent, "__parent");
+      t1.__parent = this.newParent;
+      t1._environment.scope$1$2$when(callback, this.node.hasDeclarations, type$.void);
+      t1.__parent = t2;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure0.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        oldAtRootExcludingStyleRule = t1._atRootExcludingStyleRule;
+      t1._atRootExcludingStyleRule = true;
+      this.innerScope.call$1(callback);
+      t1._atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure1.prototype = {
+    call$1(callback) {
+      return this.$this._withMediaQueries$3(null, null, new A._EvaluateVisitor__scopeForAtRoot__closure(this.innerScope, callback));
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot__closure.prototype = {
+    call$0() {
+      return this.innerScope.call$1(this.callback);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure2.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        wasInKeyframes = t1._inKeyframes;
+      t1._inKeyframes = false;
+      this.innerScope.call$1(callback);
+      t1._inKeyframes = wasInKeyframes;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure3.prototype = {
+    call$1($parent) {
+      return $parent instanceof A.ModifiableCssAtRule;
+    },
+    $signature: 171
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure4.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        wasInUnknownAtRule = t1._inUnknownAtRule;
+      t1._inUnknownAtRule = false;
+      this.innerScope.call$1(callback);
+      t1._inUnknownAtRule = wasInUnknownAtRule;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor_visitContentRule_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.content.declaration.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+      return null;
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitDeclaration_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this._box_0.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitEachRule_closure.prototype = {
+    call$1(value) {
+      var t1 = this.$this,
+        t2 = this.nodeWithSpan;
+      return t1._environment.setLocalVariable$3(this._box_0.variable, t1._withoutSlash$2(value, t2), t2);
+    },
+    $signature: 58
+  };
+  A._EvaluateVisitor_visitEachRule_closure0.prototype = {
+    call$1(value) {
+      return this.$this._setMultipleVariables$3(this._box_0.variables, value, this.nodeWithSpan);
+    },
+    $signature: 58
+  };
+  A._EvaluateVisitor_visitEachRule_closure1.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      return t1._handleReturn$2(_this.list.get$asList(), new A._EvaluateVisitor_visitEachRule__closure(t1, _this.setVariables, _this.node));
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitEachRule__closure.prototype = {
+    call$1(element) {
+      var t1;
+      this.setVariables.call$1(element);
+      t1 = this.$this;
+      return t1._handleReturn$2(this.node.children, new A._EvaluateVisitor_visitEachRule___closure(t1));
+    },
+    $signature: 295
+  };
+  A._EvaluateVisitor_visitEachRule___closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 76
+  };
+  A._EvaluateVisitor_visitAtRule_closure.prototype = {
+    call$1(value) {
+      return this.$this._interpolationToValue$3$trim$warnForColor(value, true, true);
+    },
+    $signature: 291
+  };
+  A._EvaluateVisitor_visitAtRule_closure0.prototype = {
+    call$0() {
+      var t2, t3, _i, _this = this,
+        t1 = _this.$this,
+        styleRule = t1._atRootExcludingStyleRule ? null : t1._styleRuleIgnoringAtRoot;
+      if (styleRule == null || t1._inKeyframes || J.$eq$(_this.name.value, "font-face"))
+        for (t2 = _this.children, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t2[_i].accept$1(t1);
+      else
+        t1._withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$(styleRule._style_rule$_selector, styleRule.span, false, styleRule.originalSelector), new A._EvaluateVisitor_visitAtRule__closure(t1, _this.children), false, type$.ModifiableCssStyleRule, type$.Null);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitAtRule__closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitAtRule_closure1.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitForRule_closure.prototype = {
+    call$0() {
+      return this.node.from.accept$1(this.$this).assertNumber$0();
+    },
+    $signature: 186
+  };
+  A._EvaluateVisitor_visitForRule_closure0.prototype = {
+    call$0() {
+      return this.node.to.accept$1(this.$this).assertNumber$0();
+    },
+    $signature: 186
+  };
+  A._EvaluateVisitor_visitForRule_closure1.prototype = {
+    call$0() {
+      return this.fromNumber.assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure2.prototype = {
+    call$0() {
+      var t1 = this.fromNumber;
+      return this.toNumber.coerce$2(t1.get$numeratorUnits(t1), t1.get$denominatorUnits(t1)).assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure3.prototype = {
+    call$0() {
+      var i, t3, t4, t5, t6, t7, t8, _0_0, _this = this,
+        t1 = _this.$this,
+        t2 = _this.node,
+        nodeWithSpan = t1._expressionNode$1(t2.from);
+      for (i = _this.from, t3 = _this._box_0, t4 = _this.direction, t5 = t2.variable, t6 = _this.fromNumber, t2 = t2.children; i !== t3.to; i += t4) {
+        t7 = t1._environment;
+        t8 = t6.get$numeratorUnits(t6);
+        t7.setLocalVariable$3(t5, A.SassNumber_SassNumber$withUnits(i, t6.get$denominatorUnits(t6), t8), nodeWithSpan);
+        _0_0 = t1._handleReturn$2(t2, new A._EvaluateVisitor_visitForRule__closure(t1));
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitForRule__closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 76
+  };
+  A._EvaluateVisitor_visitForwardRule_closure.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._registerCommentsForModule$1(module);
+      this.$this._environment.forwardModule$2(module, this.node);
+    },
+    $signature: 78
+  };
+  A._EvaluateVisitor_visitForwardRule_closure0.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._registerCommentsForModule$1(module);
+      this.$this._environment.forwardModule$2(module, this.node);
+    },
+    $signature: 78
+  };
+  A._EvaluateVisitor__registerCommentsForModule_closure.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_CssComment);
+    },
+    $signature: 173
+  };
+  A._EvaluateVisitor_visitIfRule_closure.prototype = {
+    call$1(clause) {
+      var t1 = this.$this;
+      return t1._environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitIfRule__closure(t1, clause), true, clause.hasDeclarations, type$.nullable_Value);
+    },
+    $signature: 288
+  };
+  A._EvaluateVisitor_visitIfRule__closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1._handleReturn$2(this.clause.children, new A._EvaluateVisitor_visitIfRule___closure(t1));
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitIfRule___closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 76
+  };
+  A._EvaluateVisitor__visitDynamicImport_closure.prototype = {
+    call$0() {
+      var t1, t2, _0_0, stylesheet, importer, isDependency, t3, url, oldImporter, oldInDependency, loadsUserDefinedModules, children, t4, t5, t6, t7, t8, t9, t10, environment, module, visitor, _box_0 = {};
+      _box_0.isDependency = _box_0.importer = _box_0.stylesheet = null;
+      t1 = this.$this;
+      t2 = this.$import;
+      _0_0 = t1._loadStylesheet$3$forImport(t2.urlString, t2.span, true);
+      stylesheet = _box_0.stylesheet = _0_0._0;
+      importer = _0_0._1;
+      _box_0.importer = importer;
+      isDependency = _0_0._2;
+      _box_0.isDependency = isDependency;
+      t3 = stylesheet.span;
+      url = t3.get$sourceUrl(t3);
+      if (url != null) {
+        t3 = t1._activeModules;
+        if (t3.containsKey$1(url)) {
+          t2 = A.NullableExtension_andThen(t3.$index(0, url), new A._EvaluateVisitor__visitDynamicImport__closure(t1));
+          throw A.wrapException(t2 == null ? t1._evaluate$_exception$1("This file is already being loaded.") : t2);
+        }
+        t3.$indexSet(0, url, t2);
+      }
+      t2 = stylesheet._uses;
+      t3 = type$.UnmodifiableListView_UseRule;
+      if (new A.UnmodifiableListView(t2, t3).get$length(0) === 0 && new A.UnmodifiableListView(stylesheet._forwards, type$.UnmodifiableListView_ForwardRule).get$length(0) === 0) {
+        oldImporter = t1._importer;
+        t2 = t1._assertInModule$2(t1.__stylesheet, "_stylesheet");
+        oldInDependency = t1._inDependency;
+        t1._importer = importer;
+        t1.__stylesheet = stylesheet;
+        t1._inDependency = isDependency;
+        t1.visitStylesheet$1(stylesheet);
+        t1._importer = oldImporter;
+        t1.__stylesheet = t2;
+        t1._inDependency = oldInDependency;
+        t1._activeModules.remove$1(0, url);
+        return;
+      }
+      t2 = new A.UnmodifiableListView(t2, t3);
+      if (!t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure0())) {
+        t2 = new A.UnmodifiableListView(stylesheet._forwards, type$.UnmodifiableListView_ForwardRule);
+        loadsUserDefinedModules = t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure1());
+      } else
+        loadsUserDefinedModules = true;
+      children = A._Cell$();
+      t2 = t1._environment;
+      t3 = type$.String;
+      t4 = type$.Module_Callable;
+      t5 = type$.AstNode;
+      t6 = A._setArrayType([], type$.JSArray_Module_Callable);
+      t7 = t2._variables;
+      t7 = A._setArrayType(t7.slice(0), A._arrayInstanceType(t7));
+      t8 = t2._variableNodes;
+      t8 = A._setArrayType(t8.slice(0), A._arrayInstanceType(t8));
+      t9 = t2._functions;
+      t9 = A._setArrayType(t9.slice(0), A._arrayInstanceType(t9));
+      t10 = t2._mixins;
+      t10 = A._setArrayType(t10.slice(0), A._arrayInstanceType(t10));
+      environment = A.Environment$_(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), A.LinkedHashMap_LinkedHashMap$_empty(t3, t5), A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t2._importedModules, null, null, t6, t7, t8, t9, t10, t2._content);
+      t1._withEnvironment$2(environment, new A._EvaluateVisitor__visitDynamicImport__closure2(_box_0, t1, loadsUserDefinedModules, environment, children));
+      module = environment.toDummyModule$0();
+      t1._environment.importForwards$1(module);
+      if (loadsUserDefinedModules) {
+        if (module.transitivelyContainsCss)
+          t1._combineCss$2$clone(module, module.transitivelyContainsExtensions).accept$1(t1);
+        visitor = new A._ImportedCssVisitor(t1);
+        for (t2 = J.get$iterator$ax(children._readLocal$0()); t2.moveNext$0();)
+          t2.get$current(t2).accept$1(visitor);
+      }
+      t1._activeModules.remove$1(0, url);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure.prototype = {
+    call$1(previousLoad) {
+      return this.$this._multiSpanException$3("This file is already being loaded.", "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 81
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure0.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 174
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure1.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 175
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure2.prototype = {
+    call$0() {
+      var t7, t8, _this = this,
+        t1 = _this.$this,
+        oldImporter = t1._importer,
+        t2 = t1._assertInModule$2(t1.__stylesheet, "_stylesheet"),
+        t3 = t1._assertInModule$2(t1.__root, "_root"),
+        t4 = t1._assertInModule$2(t1.__parent, "__parent"),
+        t5 = t1._assertInModule$2(t1.__endOfImports, "_endOfImports"),
+        oldOutOfOrderImports = t1._outOfOrderImports,
+        oldConfiguration = t1._configuration,
+        oldInDependency = t1._inDependency,
+        t6 = _this._box_0;
+      t1._importer = t6.importer;
+      t7 = t6.stylesheet;
+      t1.__stylesheet = t7;
+      t8 = _this.loadsUserDefinedModules;
+      if (t8) {
+        t7 = A.ModifiableCssStylesheet$(t7.span);
+        t1.__root = t7;
+        t1.__parent = t1._assertInModule$2(t7, "_root");
+        t1.__endOfImports = 0;
+        t1._outOfOrderImports = null;
+      }
+      t1._inDependency = t6.isDependency;
+      t7 = new A.UnmodifiableListView(t6.stylesheet._forwards, type$.UnmodifiableListView_ForwardRule);
+      if (!t7.get$isEmpty(t7))
+        t1._configuration = _this.environment.toImplicitConfiguration$0();
+      t1.visitStylesheet$1(t6.stylesheet);
+      t6 = t8 ? t1._addOutOfOrderImports$0() : A._setArrayType([], type$.JSArray_ModifiableCssNode);
+      _this.children.__late_helper$_value = t6;
+      t1._importer = oldImporter;
+      t1.__stylesheet = t2;
+      if (t8) {
+        t1.__root = t3;
+        t1.__parent = t4;
+        t1.__endOfImports = t5;
+        t1._outOfOrderImports = oldOutOfOrderImports;
+      }
+      t1._configuration = oldConfiguration;
+      t1._inDependency = oldInDependency;
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__applyMixin_closure.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      t1._environment.asMixin$1(new A._EvaluateVisitor__applyMixin__closure0(t1, _this.$arguments, _this.mixin, _this.nodeWithSpanWithoutContent));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin__closure0.prototype = {
+    call$0() {
+      var _this = this;
+      _this.$this._runBuiltInCallable$3(_this.$arguments, _this.mixin, _this.nodeWithSpanWithoutContent);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin_closure0.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      t1._environment.withContent$2(_this.contentCallable, new A._EvaluateVisitor__applyMixin__closure(t1, _this.mixin, _this.nodeWithSpanWithoutContent));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__applyMixin__closure.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._environment.asMixin$1(new A._EvaluateVisitor__applyMixin___closure(t1, this.mixin, this.nodeWithSpanWithoutContent));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin___closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4, _i;
+      for (t1 = this.mixin.declaration.children, t2 = t1.length, t3 = this.$this, t4 = this.nodeWithSpanWithoutContent, _i = 0; _i < t2; ++_i)
+        t3._addErrorSpan$2(t4, new A._EvaluateVisitor__applyMixin____closure(t3, t1[_i]));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin____closure.prototype = {
+    call$0() {
+      return this.statement.accept$1(this.$this);
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._environment.getMixin$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 77
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure0.prototype = {
+    call$1($content) {
+      var t1 = this.$this;
+      return new A.UserDefinedCallable($content, t1._environment.closure$0(), t1._inDependency, type$.UserDefinedCallable_Environment);
+    },
+    $signature: 286
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure1.prototype = {
+    call$0() {
+      return this.node.get$spanWithoutContent();
+    },
+    $signature: 26
+  };
+  A._EvaluateVisitor_visitMediaRule_closure.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._mergeMediaQueries$2(mediaQueries, this.queries);
+    },
+    $signature: 79
+  };
+  A._EvaluateVisitor_visitMediaRule_closure0.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.mergedQueries;
+      if (t2 == null)
+        t2 = _this.queries;
+      t1._withMediaQueries$3(t2, _this.mergedSources, new A._EvaluateVisitor_visitMediaRule__closure(t1, _this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitMediaRule__closure.prototype = {
+    call$0() {
+      var t2, t3, _i,
+        t1 = this.$this,
+        _0_0 = t1._atRootExcludingStyleRule ? null : t1._styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitMediaRule___closure(t1, this.node), false, type$.ModifiableCssStyleRule, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t2[_i].accept$1(t1);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitMediaRule___closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitMediaRule_closure1.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitStyleRule_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitStyleRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitStyleRule_closure2.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._withStyleRule$2(this.rule, new A._EvaluateVisitor_visitStyleRule__closure(t1, this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitStyleRule__closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitStyleRule_closure1.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitStyleRule_closure3.prototype = {
+    call$1(child) {
+      return child instanceof A.ModifiableCssComment;
+    },
+    $signature: 111
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure.prototype = {
+    call$0() {
+      var t2, t3, _i,
+        t1 = this.$this,
+        _0_0 = t1._atRootExcludingStyleRule ? null : t1._styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._withParent$2$2(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitSupportsRule__closure(t1, this.node), type$.ModifiableCssStyleRule, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t2[_i].accept$1(t1);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitSupportsRule__closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor__visitSupportsCondition_closure.prototype = {
+    call$0() {
+      var t4,
+        t1 = this.$this,
+        t2 = this._box_0,
+        t3 = t2.declaration.name;
+      t3 = t1._evaluate$_serialize$3$quote(t3.accept$1(t1), t3, true);
+      t4 = t2.declaration.get$isCustomProperty() ? "" : " ";
+      t2 = t2.declaration.value;
+      return "(" + t3 + ":" + t4 + t1._evaluate$_serialize$3$quote(t2.accept$1(t1), t2, true) + ")";
+    },
+    $signature: 25
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure.prototype = {
+    call$0() {
+      var t1 = this.$this._environment,
+        t2 = this._box_0.override;
+      t1.setVariable$4$global(this.node.name, t2.value, t2.assignmentNode, true);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure0.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure1.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.node;
+      t1._environment.setVariable$5$global$namespace(t2.name, this.value, t1._expressionNode$1(t2.expression), t2.isGlobal, t2.namespace);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitUseRule_closure.prototype = {
+    call$2(module, firstLoad) {
+      var t1, t2, t3, _0_0, t4, t5, span;
+      if (firstLoad)
+        this.$this._registerCommentsForModule$1(module);
+      t1 = this.$this._environment;
+      t2 = this.node;
+      t3 = t2.namespace;
+      if (t3 == null) {
+        t1._globalModules.$indexSet(0, module, t2);
+        t1._allModules.push(module);
+        _0_0 = A.IterableExtension_firstWhereOrNull(J.get$keys$z(B.JSArray_methods.get$first(t1._variables)), module.get$variables().get$containsKey());
+        if (_0_0 != null)
+          A.throwExpression(A.SassScriptException$(string$.This_ma + _0_0 + '".', null));
+      } else {
+        t4 = t1._environment$_modules;
+        if (t4.containsKey$1(t3)) {
+          t5 = t1._namespaceNodes.$index(0, t3);
+          span = t5 == null ? null : t5.span;
+          t5 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (span != null)
+            t5.$indexSet(0, span, "original @use");
+          A.throwExpression(A.MultiSpanSassScriptException$(string$.There_ + t3 + '".', "new @use", t5));
+        }
+        t4.$indexSet(0, t3, module);
+        t1._namespaceNodes.$indexSet(0, t3, t2);
+        t1._allModules.push(module);
+      }
+    },
+    $signature: 78
+  };
+  A._EvaluateVisitor_visitWarnRule_closure.prototype = {
+    call$0() {
+      return this.node.expression.accept$1(this.$this);
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor_visitWhileRule_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, _0_0;
+      for (t1 = this.node, t2 = t1.condition, t3 = this.$this, t1 = t1.children; t2.accept$1(t3).get$isTruthy();) {
+        _0_0 = t3._handleReturn$2(t1, new A._EvaluateVisitor_visitWhileRule__closure(t3));
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitWhileRule__closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 76
+  };
+  A._EvaluateVisitor_visitBinaryOperationExpression_closure.prototype = {
+    call$0() {
+      var t1 = this.node,
+        t2 = this.$this,
+        left = t1.left.accept$1(t2);
+      switch (t1.operator) {
+        case B.BinaryOperator_wdM:
+          t1 = t1.right.accept$1(t2);
+          t1 = new A.SassString(A.serializeValue(left, false, true) + "=" + A.serializeValue(t1, false, true), false);
+          break;
+        case B.BinaryOperator_qNM:
+          t1 = left.get$isTruthy() ? left : t1.right.accept$1(t2);
+          break;
+        case B.BinaryOperator_eDt:
+          t1 = left.get$isTruthy() ? t1.right.accept$1(t2) : left;
+          break;
+        case B.BinaryOperator_g8k:
+          t1 = left.$eq(0, t1.right.accept$1(t2)) ? B.SassBoolean_true : B.SassBoolean_false;
+          break;
+        case B.BinaryOperator_icU:
+          t1 = !left.$eq(0, t1.right.accept$1(t2)) ? B.SassBoolean_true : B.SassBoolean_false;
+          break;
+        case B.BinaryOperator_bEa:
+          t1 = left.greaterThan$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_oEm:
+          t1 = left.greaterThanOrEquals$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_miq:
+          t1 = left.lessThan$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_SPQ:
+          t1 = left.lessThanOrEquals$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_u15:
+          t1 = left.plus$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_SjO:
+          t1 = left.minus$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_2No:
+          t1 = left.times$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_U77:
+          t1 = t2._slash$3(left, t1.right.accept$1(t2), t1);
+          break;
+        case B.BinaryOperator_KNx:
+          t1 = left.modulo$1(t1.right.accept$1(t2));
+          break;
+        default:
+          t1 = null;
+      }
+      return t1;
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor__slash_recommendation.prototype = {
+    call$1(expression) {
+      var t1;
+      $label0$0: {
+        if (expression instanceof A.BinaryOperationExpression && B.BinaryOperator_U77 === expression.operator) {
+          t1 = "math.div(" + A.S(this.call$1(expression.left)) + ", " + A.S(this.call$1(expression.right)) + ")";
+          break $label0$0;
+        }
+        if (expression instanceof A.ParenthesizedExpression) {
+          t1 = expression.expression.toString$0(0);
+          break $label0$0;
+        }
+        t1 = expression.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 136
+  };
+  A._EvaluateVisitor_visitVariableExpression_closure.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 39
+  };
+  A._EvaluateVisitor_visitUnaryOperationExpression_closure.prototype = {
+    call$0() {
+      var t1, _this = this;
+      switch (_this.node.operator) {
+        case B.UnaryOperator_cLp:
+          t1 = _this.operand.unaryPlus$0();
+          break;
+        case B.UnaryOperator_AiQ:
+          t1 = _this.operand.unaryMinus$0();
+          break;
+        case B.UnaryOperator_SJr:
+          t1 = new A.SassString("/" + A.serializeValue(_this.operand, false, true), false);
+          break;
+        case B.UnaryOperator_not_not_not:
+          t1 = _this.operand.unaryNot$0();
+          break;
+        default:
+          t1 = null;
+      }
+      return t1;
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor_visitListExpression_closure.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 269
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._environment.getFunction$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 77
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure0.prototype = {
+    call$1(argument) {
+      return argument.accept$1(new A._IsCalculationSafeVisitor());
+    },
+    $signature: 110
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure1.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._runFunctionCallable$3(t1.$arguments, this._box_0.$function, t1);
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor__checkCalculationArguments_check.prototype = {
+    call$1(maxArgs) {
+      var t1 = this.node,
+        t2 = t1.$arguments.positional.length;
+      if (t2 === 0)
+        throw A.wrapException(this.$this._evaluate$_exception$2("Missing argument.", t1.span));
+      else if (maxArgs != null && t2 > maxArgs)
+        throw A.wrapException(this.$this._evaluate$_exception$2("Only " + A.S(maxArgs) + " " + A.pluralize("argument", maxArgs, null) + " allowed, but " + t2 + " " + A.pluralize("was", t2, "were") + " passed.", t1.span));
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    $signature: 96
+  };
+  A._EvaluateVisitor__visitCalculationExpression_closure.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this._box_0,
+        t3 = _this.inLegacySassFunction;
+      return A.SassCalculation_operateInternal(t1._binaryOperatorToCalculationOperator$2(t2.operator, _this.node), t1._visitCalculationExpression$2$inLegacySassFunction(t2.left, t3), t1._visitCalculationExpression$2$inLegacySassFunction(t2.right, t3), t3, !t1._inSupportsDeclaration);
+    },
+    $signature: 80
+  };
+  A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._runFunctionCallable$3(t1.$arguments, this.$function, t1);
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor__runUserDefinedCallable_closure.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.callable;
+      return t1._withEnvironment$2(t2.environment.closure$0(), new A._EvaluateVisitor__runUserDefinedCallable__closure(t1, _this.evaluated, t2, _this.nodeWithSpan, _this.run, _this.V));
+    },
+    $signature() {
+      return this.V._eval$1("0()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable__closure.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.V;
+      return t1._environment.scope$1$1(new A._EvaluateVisitor__runUserDefinedCallable___closure(t1, _this.evaluated, _this.callable, _this.nodeWithSpan, _this.run, t2), t2);
+    },
+    $signature() {
+      return this.V._eval$1("0()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable___closure.prototype = {
+    call$0() {
+      var declaredArguments, t5, minLength, i, argument, t6, t7, value, t8, restArgument, rest, argumentList, result, argumentWord, _this = this,
+        t1 = _this.$this,
+        t2 = _this.evaluated._values,
+        t3 = _this.callable.declaration.$arguments,
+        t4 = _this.nodeWithSpan;
+      t1._verifyArguments$4(J.get$length$asx(t2[2]), t2[0], t3, t4);
+      declaredArguments = t3.$arguments;
+      t5 = declaredArguments.length;
+      minLength = Math.min(J.get$length$asx(t2[2]), t5);
+      for (i = 0; i < minLength; ++i)
+        t1._environment.setLocalVariable$3(declaredArguments[i].name, J.$index$asx(t2[2], i), J.$index$asx(t2[3], i));
+      for (i = J.get$length$asx(t2[2]); i < t5; ++i) {
+        argument = declaredArguments[i];
+        t6 = t2[0];
+        t7 = argument.name;
+        value = J.remove$1$z(t6, t7);
+        if (value == null) {
+          t6 = argument.defaultValue;
+          value = t1._withoutSlash$2(t6.accept$1(t1), t1._expressionNode$1(t6));
+        }
+        t6 = t1._environment;
+        t8 = J.$index$asx(t2[1], t7);
+        if (t8 == null) {
+          t8 = argument.defaultValue;
+          t8.toString;
+          t8 = t1._expressionNode$1(t8);
+        }
+        t6.setLocalVariable$3(t7, value, t8);
+      }
+      restArgument = t3.restArgument;
+      if (restArgument != null) {
+        rest = J.get$length$asx(t2[2]) > t5 ? J.sublist$1$ax(t2[2], t5) : B.List_empty8;
+        t5 = t2[0];
+        t6 = t2[4];
+        argumentList = A.SassArgumentList$(rest, t5, t6 === B.ListSeparator_undecided_null_undecided ? B.ListSeparator_ECn : t6);
+        t1._environment.setLocalVariable$3(restArgument, argumentList, t4);
+      } else
+        argumentList = null;
+      result = _this.run.call$0();
+      if (argumentList == null)
+        return result;
+      t5 = t2[0].__js_helper$_length;
+      if (t5 === 0)
+        return result;
+      if (argumentList._wereKeywordsAccessed)
+        return result;
+      argumentWord = A.pluralize("argument", t5, null);
+      t2 = t2[0];
+      t5 = A._instanceType(t2)._eval$1("LinkedHashMapKeyIterable<1>");
+      throw A.wrapException(A.MultiSpanSassRuntimeException$("No " + argumentWord + " named " + A.toSentence(A.MappedIterable_MappedIterable(new A.LinkedHashMapKeyIterable(t2, t5), new A._EvaluateVisitor__runUserDefinedCallable____closure(), t5._eval$1("Iterable.E"), type$.Object), "or") + ".", t4.get$span(t4), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([t3.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), t1._evaluate$_stackTrace$1(t4.get$span(t4)), null));
+    },
+    $signature() {
+      return this.V._eval$1("0()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable____closure.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__runFunctionCallable_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4, _i, $returnValue;
+      for (t1 = this.callable.declaration, t2 = t1.children, t3 = t2.length, t4 = this.$this, _i = 0; _i < t3; ++_i) {
+        $returnValue = t2[_i].accept$1(t4);
+        if ($returnValue instanceof A.Value)
+          return $returnValue;
+      }
+      throw A.wrapException(t4._evaluate$_exception$2("Function finished without @return.", t1.span));
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure.prototype = {
+    call$0() {
+      return this._box_0.overload.verify$2(J.get$length$asx(this.evaluated._values[2]), this.namedSet);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure0.prototype = {
+    call$0() {
+      return this._box_0.callback.call$1(this.evaluated._values[2]);
+    },
+    $signature: 32
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure1.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__evaluateArguments_closure.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 42
+  };
+  A._EvaluateVisitor__evaluateArguments_closure0.prototype = {
+    call$1(value) {
+      return this.$this._withoutSlash$2(value, this.restNodeForSpan);
+    },
+    $signature: 42
+  };
+  A._EvaluateVisitor__evaluateArguments_closure1.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restNodeForSpan;
+      _this.named.$indexSet(0, key, _this.$this._withoutSlash$2(value, t1));
+      _this.namedNodes.$indexSet(0, key, t1);
+    },
+    $signature: 97
+  };
+  A._EvaluateVisitor__evaluateArguments_closure2.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 42
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression(value, t1.get$span(t1));
+    },
+    $signature: 60
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure0.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression(this.$this._withoutSlash$2(value, this.restNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 60
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure1.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restArgs;
+      _this.named.$indexSet(0, key, new A.ValueExpression(_this.$this._withoutSlash$2(value, _this.restNodeForSpan), t1.get$span(t1)));
+    },
+    $signature: 97
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure2.prototype = {
+    call$1(value) {
+      var t1 = this.keywordRestArgs;
+      return new A.ValueExpression(this.$this._withoutSlash$2(value, this.keywordRestNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 60
+  };
+  A._EvaluateVisitor__addRestMap_closure.prototype = {
+    call$2(key, value) {
+      var t2, _this = this,
+        t1 = _this.$this;
+      if (key instanceof A.SassString)
+        _this.values.$indexSet(0, key._string$_text, _this.convert.call$1(t1._withoutSlash$2(value, _this.expressionNode)));
+      else {
+        t2 = _this.nodeWithSpan;
+        throw A.wrapException(t1._evaluate$_exception$2(string$.Variab_ + key.toString$0(0) + " is not a string in " + _this.map.toString$0(0) + ".", t2.get$span(t2)));
+      }
+    },
+    $signature: 102
+  };
+  A._EvaluateVisitor__verifyArguments_closure.prototype = {
+    call$0() {
+      return this.$arguments.verify$2(this.positional, new A.MapKeySet(this.named, type$.MapKeySet_String));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._mergeMediaQueries$2(mediaQueries, this.node.queries);
+    },
+    $signature: 79
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure0.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.mergedQueries;
+      if (t2 == null)
+        t2 = _this.node.queries;
+      t1._withMediaQueries$3(t2, _this.mergedSources, new A._EvaluateVisitor_visitCssMediaRule__closure(t1, _this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssMediaRule__closure.prototype = {
+    call$0() {
+      var t2, t3, t4,
+        t1 = this.$this,
+        _0_0 = t1._atRootExcludingStyleRule ? null : t1._styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssMediaRule___closure(t1, this.node), false, type$.ModifiableCssStyleRule, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E"); t2.moveNext$0();) {
+          t4 = t2.__internal$_current;
+          (t4 == null ? t3._as(t4) : t4).accept$1(t1);
+        }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssMediaRule___closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure1.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._withStyleRule$2(this.rule, new A._EvaluateVisitor_visitCssStyleRule__closure(t1, this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssStyleRule__closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure.prototype = {
+    call$0() {
+      var t2, t3, t4,
+        t1 = this.$this,
+        _0_0 = t1._atRootExcludingStyleRule ? null : t1._styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._withParent$2$2(A.ModifiableCssStyleRule$(_0_0._style_rule$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssSupportsRule__closure(t1, this.node), type$.ModifiableCssStyleRule, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E"); t2.moveNext$0();) {
+          t4 = t2.__internal$_current;
+          (t4 == null ? t3._as(t4) : t4).accept$1(t1);
+        }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssSupportsRule__closure.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure0.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluateVisitor__performInterpolationHelper_closure.prototype = {
+    call$1(targetLocations) {
+      return A.InterpolationMap$(this.interpolation, targetLocations);
+    },
+    $signature: 181
+  };
+  A._EvaluateVisitor__serialize_closure.prototype = {
+    call$0() {
+      return A.serializeValue(this.value, false, this.quote);
+    },
+    $signature: 25
+  };
+  A._EvaluateVisitor__expressionNode_closure.prototype = {
+    call$0() {
+      var t1 = this.expression;
+      return this.$this._environment.getVariableNode$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 182
+  };
+  A._EvaluateVisitor__withoutSlash_recommendation.prototype = {
+    call$1(number) {
+      var t1, before, after,
+        _1_0 = number.asSlash;
+      $label0$0: {
+        if (type$.Record_2_nullable_Object_and_nullable_Object._is(_1_0)) {
+          t1 = type$.SassNumber;
+          before = t1._as(_1_0._0);
+          after = t1._as(_1_0._1);
+          t1 = "math.div(" + A.S(this.call$1(before)) + ", " + A.S(this.call$1(after)) + ")";
+          break $label0$0;
+        }
+        t1 = A.serializeValue(number, true, true);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 183
+  };
+  A._EvaluateVisitor__stackFrame_closure.prototype = {
+    call$1(url) {
+      var t1 = this.$this._evaluate$_importCache;
+      t1 = t1 == null ? null : t1.humanize$1(url);
+      return t1 == null ? url : t1;
+    },
+    $signature: 46
+  };
+  A._ImportedCssVisitor.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.isChildless ? null : new A._ImportedCssVisitor_visitCssAtRule_closure();
+      this._visitor._addChild$2$through(node, t1);
+    },
+    visitCssComment$1(node) {
+      return this._visitor._addChild$1(node);
+    },
+    visitCssDeclaration$1(node) {
+    },
+    visitCssImport$1(node) {
+      var t2,
+        _s13_ = "_endOfImports",
+        t1 = this._visitor;
+      if (t1._assertInModule$2(t1.__parent, "__parent") !== t1._assertInModule$2(t1.__root, "_root"))
+        t1._addChild$1(node);
+      else if (t1._assertInModule$2(t1.__endOfImports, _s13_) === J.get$length$asx(t1._assertInModule$2(t1.__root, "_root").children._collection$_source)) {
+        t1._addChild$1(node);
+        t1.__endOfImports = t1._assertInModule$2(t1.__endOfImports, _s13_) + 1;
+      } else {
+        t2 = t1._outOfOrderImports;
+        (t2 == null ? t1._outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport) : t2).push(node);
+      }
+    },
+    visitCssKeyframeBlock$1(node) {
+    },
+    visitCssMediaRule$1(node) {
+      var t1 = this._visitor,
+        mediaQueries = t1._mediaQueries;
+      t1._addChild$2$through(node, new A._ImportedCssVisitor_visitCssMediaRule_closure(mediaQueries == null || t1._mergeMediaQueries$2(mediaQueries, node.queries) != null));
+    },
+    visitCssStyleRule$1(node) {
+      return this._visitor._addChild$2$through(node, new A._ImportedCssVisitor_visitCssStyleRule_closure());
+    },
+    visitCssStylesheet$1(node) {
+      var t1, t2, t3;
+      for (t1 = node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        (t3 == null ? t2._as(t3) : t3).accept$1(this);
+      }
+    },
+    visitCssSupportsRule$1(node) {
+      return this._visitor._addChild$2$through(node, new A._ImportedCssVisitor_visitCssSupportsRule_closure());
+    }
+  };
+  A._ImportedCssVisitor_visitCssAtRule_closure.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._ImportedCssVisitor_visitCssMediaRule_closure.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule))
+        t1 = this.hasBeenMerged && node instanceof A.ModifiableCssMediaRule;
+      else
+        t1 = true;
+      return t1;
+    },
+    $signature: 7
+  };
+  A._ImportedCssVisitor_visitCssStyleRule_closure.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._ImportedCssVisitor_visitCssSupportsRule_closure.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule;
+    },
+    $signature: 7
+  };
+  A._EvaluationContext.prototype = {
+    get$currentCallableSpan() {
+      var _0_0 = this._visitor._callableNode;
+      if (_0_0 != null)
+        return _0_0.get$span(_0_0);
+      throw A.wrapException(A.StateError$(string$.No_Sasc));
+    },
+    warn$2(_, message, deprecation) {
+      var t1 = this._visitor,
+        t2 = t1._importSpan;
+      if (t2 == null) {
+        t2 = t1._callableNode;
+        t2 = t2 == null ? null : t2.get$span(t2);
+      }
+      if (t2 == null) {
+        t2 = this._defaultWarnNodeWithSpan;
+        t2 = t2.get$span(t2);
+      }
+      t1._warn$3(message, t2, deprecation);
+    },
+    $isEvaluationContext: 1
+  };
+  A.EveryCssVisitor.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssAtRule_closure(this));
+    },
+    visitCssComment$1(node) {
+      return false;
+    },
+    visitCssDeclaration$1(node) {
+      return false;
+    },
+    visitCssImport$1(node) {
+      return false;
+    },
+    visitCssKeyframeBlock$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssKeyframeBlock_closure(this));
+    },
+    visitCssMediaRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssMediaRule_closure(this));
+    },
+    visitCssStyleRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssStyleRule_closure(this));
+    },
+    visitCssStylesheet$1(node) {
+      return J.every$1$ax(node.get$children(node), new A.EveryCssVisitor_visitCssStylesheet_closure(this));
+    },
+    visitCssSupportsRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssSupportsRule_closure(this));
+    }
+  };
+  A.EveryCssVisitor_visitCssAtRule_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 7
+  };
+  A.EveryCssVisitor_visitCssKeyframeBlock_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 7
+  };
+  A.EveryCssVisitor_visitCssMediaRule_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 7
+  };
+  A.EveryCssVisitor_visitCssStyleRule_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 7
+  };
+  A.EveryCssVisitor_visitCssStylesheet_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 7
+  };
+  A.EveryCssVisitor_visitCssSupportsRule_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 7
+  };
+  A._MakeExpressionCalculationSafe.prototype = {
+    visitBinaryOperationExpression$1(node) {
+      var t1, t2, t3, t4;
+      if (node.operator === B.BinaryOperator_KNx) {
+        t1 = A._setArrayType([node], type$.JSArray_Expression);
+        t2 = node.get$span(0);
+        t3 = type$.Expression;
+        t1 = A.List_List$unmodifiable(t1, t3);
+        t3 = A.ConstantMap_ConstantMap$from(B.Map_empty6, type$.String, t3);
+        t4 = node.get$span(0);
+        t1 = new A.FunctionExpression("math", A.stringReplaceAllUnchecked("max", "_", "-"), "max", new A.ArgumentInvocation(t1, t3, null, null, t2), t4);
+      } else
+        t1 = this.super$ReplaceExpressionVisitor$visitBinaryOperationExpression(node);
+      return t1;
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return node;
+    },
+    visitUnaryOperationExpression$1(node) {
+      var t1,
+        _0_0 = node.operator;
+      $label0$0: {
+        if (B.UnaryOperator_cLp === _0_0) {
+          t1 = node.operand;
+          break $label0$0;
+        }
+        if (B.UnaryOperator_AiQ === _0_0) {
+          t1 = new A.BinaryOperationExpression(B.BinaryOperator_2No, new A.NumberExpression(-1, null, node.span), node.operand, false);
+          break $label0$0;
+        }
+        t1 = this.super$ReplaceExpressionVisitor$visitUnaryOperationExpression(node);
+        break $label0$0;
+      }
+      return t1;
+    }
+  };
+  A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor.prototype = {};
+  A._FindDependenciesVisitor.prototype = {
+    visitEachRule$1(node) {
+    },
+    visitForRule$1(node) {
+    },
+    visitIfRule$1(node) {
+    },
+    visitWhileRule$1(node) {
+    },
+    visitUseRule$1(node) {
+      var t1 = node.url;
+      if (t1.get$scheme() !== "sass")
+        this._find_dependencies$_uses.add$1(0, t1);
+      else if (t1.toString$0(0) === "sass:meta")
+        this._metaNamespaces.add$1(0, node.namespace);
+    },
+    visitForwardRule$1(node) {
+      var t1 = node.url;
+      if (t1.get$scheme() !== "sass")
+        this._find_dependencies$_forwards.add$1(0, t1);
+    },
+    visitImportRule$1(node) {
+      var t1, t2, t3, _i, $import;
+      for (t1 = node.imports, t2 = t1.length, t3 = this._imports, _i = 0; _i < t2; ++_i) {
+        $import = t1[_i];
+        if ($import instanceof A.DynamicImport)
+          t3.add$1(0, A.Uri_parse($import.urlString));
+      }
+    },
+    visitIncludeRule$1(node) {
+      var url, _0_0, _0_4_isSet, _0_4, t1, _0_7_isSet, _0_7, url0, exception, _null = null;
+      if (node.name !== "load-css")
+        return;
+      if (!this._metaNamespaces.contains$1(0, node.namespace))
+        return;
+      _0_0 = node.$arguments.positional;
+      url = null;
+      _0_4_isSet = _0_0.length === 1;
+      if (_0_4_isSet) {
+        _0_4 = _0_0[0];
+        t1 = _0_4;
+        _0_7_isSet = t1 instanceof A.StringExpression;
+        if (_0_7_isSet) {
+          type$.StringExpression._as(_0_4);
+          _0_7 = _0_4.text.get$asPlain();
+          t1 = _0_7;
+          t1 = t1 != null;
+        } else {
+          _0_7 = _null;
+          t1 = false;
+        }
+      } else {
+        _0_7 = _null;
+        _0_4 = _0_7;
+        _0_7_isSet = false;
+        t1 = false;
+      }
+      if (t1) {
+        if (_0_7_isSet)
+          url0 = _0_7;
+        else {
+          t1 = _0_4_isSet ? _0_4 : _0_0[0];
+          _0_7 = type$.StringExpression._as(t1).text.get$asPlain();
+          url0 = _0_7;
+        }
+        url = url0 == null ? A._asString(url0) : url0;
+        try {
+          this._metaLoadCss.add$1(0, A.Uri_parse(url));
+        } catch (exception) {
+          if (!type$.FormatException._is(A.unwrapException(exception)))
+            throw exception;
+        }
+      }
+    }
+  };
+  A.DependencyReport.prototype = {};
+  A.__FindDependenciesVisitor_Object_RecursiveStatementVisitor.prototype = {};
+  A.RecursiveStatementVisitor.prototype = {
+    visitAtRootRule$1(node) {
+      this.visitChildren$1(node.children);
+    },
+    visitAtRule$1(node) {
+      return A.NullableExtension_andThen(node.children, this.get$visitChildren());
+    },
+    visitContentBlock$1(node) {
+      return null;
+    },
+    visitContentRule$1(node) {
+    },
+    visitDebugRule$1(node) {
+    },
+    visitDeclaration$1(node) {
+      return A.NullableExtension_andThen(node.children, this.get$visitChildren());
+    },
+    visitEachRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitErrorRule$1(node) {
+    },
+    visitExtendRule$1(node) {
+    },
+    visitForRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitForwardRule$1(node) {
+    },
+    visitFunctionRule$1(node) {
+      return null;
+    },
+    visitIfRule$1(node) {
+      var t1, t2, _i, t3, t4, _i0, _0_0;
+      for (t1 = node.clauses, t2 = t1.length, _i = 0; _i < t2; ++_i)
+        for (t3 = t1[_i].children, t4 = t3.length, _i0 = 0; _i0 < t4; ++_i0)
+          t3[_i0].accept$1(this);
+      _0_0 = node.lastClause;
+      if (_0_0 != null)
+        for (t1 = _0_0.children, t2 = t1.length, _i = 0; _i < t2; ++_i)
+          t1[_i].accept$1(this);
+    },
+    visitImportRule$1(node) {
+    },
+    visitIncludeRule$1(node) {
+      return A.NullableExtension_andThen(node.content, this.get$visitContentBlock());
+    },
+    visitLoudComment$1(node) {
+    },
+    visitMediaRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitMixinRule$1(node) {
+      return null;
+    },
+    visitReturnRule$1(node) {
+    },
+    visitSilentComment$1(node) {
+    },
+    visitStyleRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitStylesheet$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitSupportsRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitUseRule$1(node) {
+    },
+    visitVariableDeclaration$1(node) {
+    },
+    visitWarnRule$1(node) {
+    },
+    visitWhileRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitChildren$1(children) {
+      var t1;
+      for (t1 = J.get$iterator$ax(children); t1.moveNext$0();)
+        t1.get$current(t1).accept$1(this);
+    }
+  };
+  A.ReplaceExpressionVisitor.prototype = {
+    visitBinaryOperationExpression$1(node) {
+      return new A.BinaryOperationExpression(node.operator, node.left.accept$1(this), node.right.accept$1(this), false);
+    },
+    visitBooleanExpression$1(node) {
+      return node;
+    },
+    visitColorExpression$1(node) {
+      return node;
+    },
+    visitFunctionExpression$1(node) {
+      var t1 = node.originalName,
+        t2 = this.visitArgumentInvocation$1(node.$arguments);
+      return new A.FunctionExpression(node.namespace, A.stringReplaceAllUnchecked(t1, "_", "-"), t1, t2, node.span);
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return new A.InterpolatedFunctionExpression(this.visitInterpolation$1(node.name), this.visitArgumentInvocation$1(node.$arguments), node.span);
+    },
+    visitIfExpression$1(node) {
+      return new A.IfExpression(this.visitArgumentInvocation$1(node.$arguments), node.span);
+    },
+    visitListExpression$1(node) {
+      var t1 = node.contents;
+      return new A.ListExpression(A.List_List$unmodifiable(new A.MappedListIterable(t1, new A.ReplaceExpressionVisitor_visitListExpression_closure(this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Expression>")), type$.Expression), node.separator, node.hasBrackets, node.span);
+    },
+    visitMapExpression$1(node) {
+      var t2, t3, _i, t4, key, value,
+        t1 = A._setArrayType([], type$.JSArray_Record_2_Expression_and_Expression);
+      for (t2 = node.pairs, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        t4 = t2[_i];
+        key = t4._0;
+        value = t4._1;
+        t1.push(new A._Record_2(key.accept$1(this), value.accept$1(this)));
+      }
+      return new A.MapExpression(A.List_List$unmodifiable(t1, type$.Record_2_Expression_and_Expression), node.span);
+    },
+    visitNullExpression$1(node) {
+      return node;
+    },
+    visitNumberExpression$1(node) {
+      return node;
+    },
+    visitParenthesizedExpression$1(node) {
+      return new A.ParenthesizedExpression(node.expression.accept$1(this), node.span);
+    },
+    visitSelectorExpression$1(node) {
+      return node;
+    },
+    visitStringExpression$1(node) {
+      return new A.StringExpression(this.visitInterpolation$1(node.text), node.hasQuotes);
+    },
+    visitSupportsExpression$1(node) {
+      return new A.SupportsExpression(this.visitSupportsCondition$1(node.condition));
+    },
+    visitUnaryOperationExpression$1(node) {
+      return new A.UnaryOperationExpression(node.operator, node.operand.accept$1(this), node.span);
+    },
+    visitValueExpression$1(node) {
+      return node;
+    },
+    visitVariableExpression$1(node) {
+      return node;
+    },
+    visitArgumentInvocation$1(invocation) {
+      var t5, t6, _this = this,
+        t1 = invocation.positional,
+        t2 = type$.String,
+        t3 = type$.Expression,
+        t4 = A.LinkedHashMap_LinkedHashMap$_empty(t2, t3);
+      for (t5 = A.MapExtensions_get_pairs(invocation.named, t2, t3), t5 = t5.get$iterator(t5); t5.moveNext$0();) {
+        t6 = t5.get$current(t5);
+        t4.$indexSet(0, t6._0, t6._1.accept$1(_this));
+      }
+      t5 = invocation.rest;
+      t5 = t5 == null ? null : t5.accept$1(_this);
+      t6 = invocation.keywordRest;
+      t6 = t6 == null ? null : t6.accept$1(_this);
+      return new A.ArgumentInvocation(A.List_List$unmodifiable(new A.MappedListIterable(t1, new A.ReplaceExpressionVisitor_visitArgumentInvocation_closure(_this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Expression>")), t3), A.ConstantMap_ConstantMap$from(t4, t2, t3), t5, t6, invocation.span);
+    },
+    visitSupportsCondition$1(condition) {
+      var _this = this;
+      if (condition instanceof A.SupportsOperation)
+        return A.SupportsOperation$(_this.visitSupportsCondition$1(condition.left), _this.visitSupportsCondition$1(condition.right), condition.operator, condition.span);
+      else if (condition instanceof A.SupportsNegation)
+        return new A.SupportsNegation(_this.visitSupportsCondition$1(condition.condition), condition.span);
+      else if (condition instanceof A.SupportsInterpolation)
+        return new A.SupportsInterpolation(condition.expression.accept$1(_this), condition.span);
+      else if (condition instanceof A.SupportsDeclaration)
+        return new A.SupportsDeclaration(condition.name.accept$1(_this), condition.value.accept$1(_this), condition.span);
+      else
+        throw A.wrapException(A.SassException$("BUG: Unknown SupportsCondition " + condition.toString$0(0) + ".", condition.get$span(condition), null));
+    },
+    visitInterpolation$1(interpolation) {
+      var t1 = interpolation.contents;
+      return A.Interpolation$(new A.MappedListIterable(t1, new A.ReplaceExpressionVisitor_visitInterpolation_closure(this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Object>")), interpolation.span);
+    }
+  };
+  A.ReplaceExpressionVisitor_visitListExpression_closure.prototype = {
+    call$1(item) {
+      return item.accept$1(this.$this);
+    },
+    $signature: 265
+  };
+  A.ReplaceExpressionVisitor_visitArgumentInvocation_closure.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 265
+  };
+  A.ReplaceExpressionVisitor_visitInterpolation_closure.prototype = {
+    call$1(node) {
+      return type$.Expression._is(node) ? node.accept$1(this.$this) : node;
+    },
+    $signature: 64
+  };
+  A.SelectorSearchVisitor.prototype = {
+    visitAttributeSelector$1(attribute) {
+      return null;
+    },
+    visitClassSelector$1(klass) {
+      return null;
+    },
+    visitIDSelector$1(id) {
+      return null;
+    },
+    visitParentSelector$1(placeholder) {
+      return null;
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      return null;
+    },
+    visitTypeSelector$1(type) {
+      return null;
+    },
+    visitUniversalSelector$1(universal) {
+      return null;
+    },
+    visitComplexSelector$1(complex) {
+      return A.IterableExtension_search(complex.components, new A.SelectorSearchVisitor_visitComplexSelector_closure(this));
+    },
+    visitCompoundSelector$1(compound) {
+      return A.IterableExtension_search(compound.components, new A.SelectorSearchVisitor_visitCompoundSelector_closure(this));
+    },
+    visitPseudoSelector$1(pseudo) {
+      return A.NullableExtension_andThen(pseudo.selector, this.get$visitSelectorList());
+    },
+    visitSelectorList$1(list) {
+      return A.IterableExtension_search(list.components, this.get$visitComplexSelector());
+    }
+  };
+  A.SelectorSearchVisitor_visitComplexSelector_closure.prototype = {
+    call$1(component) {
+      return this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("SelectorSearchVisitor.T?(ComplexSelectorComponent)");
+    }
+  };
+  A.SelectorSearchVisitor_visitCompoundSelector_closure.prototype = {
+    call$1(simple) {
+      return simple.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("SelectorSearchVisitor.T?(SimpleSelector)");
+    }
+  };
+  A.serialize_closure.prototype = {
+    call$1(codeUnit) {
+      return codeUnit > 127;
+    },
+    $signature: 45
+  };
+  A._SerializeVisitor.prototype = {
+    visitCssStylesheet$1(node) {
+      var t1, t2, t3, t4, t5, t6, previous, previous0, t7, _this = this;
+      for (t1 = J.get$iterator$ax(node.get$children(node)), t2 = !_this._inspect, t3 = _this._style === B.OutputStyle_1, t4 = !t3, t5 = type$.CssParentNode, t6 = _this._serialize$_buffer, previous = null; t1.moveNext$0();) {
+        previous0 = t1.get$current(t1);
+        if (t2)
+          t7 = t3 ? previous0.accept$1(B._IsInvisibleVisitor_true_true) : previous0.accept$1(B._IsInvisibleVisitor_true_false);
+        else
+          t7 = false;
+        if (t7)
+          continue;
+        if (previous != null) {
+          if (t5._is(previous) ? previous.get$isChildless() : !(previous instanceof A.ModifiableCssComment))
+            t6.writeCharCode$1(59);
+          if (_this._isTrailingComment$2(previous0, previous)) {
+            if (t4)
+              t6.writeCharCode$1(32);
+          } else {
+            if (t4)
+              t6.write$1(0, "\n");
+            if (previous.get$isGroupEnd())
+              if (t4)
+                t6.write$1(0, "\n");
+          }
+        }
+        previous0.accept$1(_this);
+        previous = previous0;
+      }
+      if (previous != null)
+        t1 = (t5._is(previous) ? previous.get$isChildless() : !(previous instanceof A.ModifiableCssComment)) && t4;
+      else
+        t1 = false;
+      if (t1)
+        t6.writeCharCode$1(59);
+    },
+    visitCssComment$1(node) {
+      this._serialize$_buffer.forSpan$2(node.span, new A._SerializeVisitor_visitCssComment_closure(this, node));
+    },
+    visitCssAtRule$1(node) {
+      var t1, _this = this;
+      _this._writeIndentation$0();
+      t1 = _this._serialize$_buffer;
+      t1.forSpan$2(node.span, new A._SerializeVisitor_visitCssAtRule_closure(_this, node));
+      if (!node.isChildless) {
+        if (_this._style !== B.OutputStyle_1)
+          t1.writeCharCode$1(32);
+        _this._serialize$_visitChildren$1(node);
+      }
+    },
+    visitCssMediaRule$1(node) {
+      var t1, _this = this;
+      _this._writeIndentation$0();
+      t1 = _this._serialize$_buffer;
+      t1.forSpan$2(node.span, new A._SerializeVisitor_visitCssMediaRule_closure(_this, node));
+      if (_this._style !== B.OutputStyle_1)
+        t1.writeCharCode$1(32);
+      _this._serialize$_visitChildren$1(node);
+    },
+    visitCssImport$1(node) {
+      this._writeIndentation$0();
+      this._serialize$_buffer.forSpan$2(node.span, new A._SerializeVisitor_visitCssImport_closure(this, node));
+    },
+    _writeImportUrl$1(url) {
+      var urlContents, maybeQuote, _this = this;
+      if (_this._style !== B.OutputStyle_1 || url.charCodeAt(0) !== 117) {
+        _this._serialize$_buffer.write$1(0, url);
+        return;
+      }
+      urlContents = B.JSString_methods.substring$2(url, 4, url.length - 1);
+      maybeQuote = urlContents.charCodeAt(0);
+      if (maybeQuote === 39 || maybeQuote === 34)
+        _this._serialize$_buffer.write$1(0, urlContents);
+      else
+        _this._visitQuotedString$1(urlContents);
+    },
+    visitCssKeyframeBlock$1(node) {
+      var t1, _this = this;
+      _this._writeIndentation$0();
+      t1 = _this._serialize$_buffer;
+      t1.forSpan$2(node.selector.span, new A._SerializeVisitor_visitCssKeyframeBlock_closure(_this, node));
+      if (_this._style !== B.OutputStyle_1)
+        t1.writeCharCode$1(32);
+      _this._serialize$_visitChildren$1(node);
+    },
+    _visitMediaQuery$1(query) {
+      var t1, _1_0, _2_0, condition, operator, t2, _this = this,
+        _0_0 = query.modifier;
+      if (_0_0 != null) {
+        t1 = _this._serialize$_buffer;
+        t1.write$1(0, _0_0);
+        t1.writeCharCode$1(32);
+      }
+      _1_0 = query.type;
+      if (_1_0 != null) {
+        t1 = _this._serialize$_buffer;
+        t1.write$1(0, _1_0);
+        if (query.conditions.length !== 0)
+          t1.write$1(0, " and ");
+      }
+      _2_0 = query.conditions;
+      if (_2_0.length === 1)
+        t1 = B.JSString_methods.startsWith$1(_2_0[0], "(not ");
+      else
+        t1 = false;
+      if (t1) {
+        t1 = _this._serialize$_buffer;
+        t1.write$1(0, "not ");
+        condition = B.JSArray_methods.get$first(_2_0);
+        t1.write$1(0, B.JSString_methods.substring$2(condition, 5, condition.length - 1));
+      } else {
+        operator = query.conjunction ? "and" : "or";
+        t1 = _this._style === B.OutputStyle_1 ? operator + " " : " " + operator + " ";
+        t2 = _this._serialize$_buffer;
+        _this._writeBetween$3(_2_0, t1, t2.get$write(t2));
+      }
+    },
+    visitCssStyleRule$1(node) {
+      var t1, _this = this;
+      _this._writeIndentation$0();
+      t1 = _this._serialize$_buffer;
+      t1.forSpan$2(node._style_rule$_selector._box$_inner.value.span, new A._SerializeVisitor_visitCssStyleRule_closure(_this, node));
+      if (_this._style !== B.OutputStyle_1)
+        t1.writeCharCode$1(32);
+      _this._serialize$_visitChildren$1(node);
+    },
+    visitCssSupportsRule$1(node) {
+      var t1, _this = this;
+      _this._writeIndentation$0();
+      t1 = _this._serialize$_buffer;
+      t1.forSpan$2(node.span, new A._SerializeVisitor_visitCssSupportsRule_closure(_this, node));
+      if (_this._style !== B.OutputStyle_1)
+        t1.writeCharCode$1(32);
+      _this._serialize$_visitChildren$1(node);
+    },
+    visitCssDeclaration$1(node) {
+      var error, stackTrace, error0, stackTrace0, t1, t2, exception, _this = this;
+      _this._writeIndentation$0();
+      t1 = node.name;
+      _this._serialize$_write$1(t1);
+      t2 = _this._serialize$_buffer;
+      t2.writeCharCode$1(58);
+      if (J.startsWith$1$s(t1.value, "--") && node.parsedAsCustomProperty)
+        t2.forSpan$2(node.value.span, new A._SerializeVisitor_visitCssDeclaration_closure(_this, node));
+      else {
+        if (_this._style !== B.OutputStyle_1)
+          t2.writeCharCode$1(32);
+        try {
+          t2.forSpan$2(node.valueSpanForMap, new A._SerializeVisitor_visitCssDeclaration_closure0(_this, node));
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (t1 instanceof A.MultiSpanSassScriptException) {
+            error = t1;
+            stackTrace = A.getTraceFromException(exception);
+            A.throwWithTrace(A.MultiSpanSassException$(error.message, node.value.span, error.primaryLabel, error.secondarySpans, null), error, stackTrace);
+          } else if (t1 instanceof A.SassScriptException) {
+            error0 = t1;
+            stackTrace0 = A.getTraceFromException(exception);
+            t1 = error0.message;
+            A.throwWithTrace(new A.SassException(B.Set_empty, t1, node.value.span), error0, stackTrace0);
+          } else
+            throw exception;
+        }
+      }
+    },
+    _writeFoldedValue$1(node) {
+      var t1, t2, next, t3,
+        scanner = A.StringScanner$(type$.SassString._as(node.value.value)._string$_text, null, null);
+      for (t1 = scanner.string.length, t2 = this._serialize$_buffer; scanner._string_scanner$_position !== t1;) {
+        next = scanner.readChar$0();
+        if (next !== 10) {
+          t2.writeCharCode$1(next);
+          continue;
+        }
+        t2.writeCharCode$1(32);
+        while (true) {
+          t3 = scanner.peekChar$0();
+          if (!(t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12))
+            break;
+          scanner.readChar$0();
+        }
+      }
+    },
+    _writeReindentedValue$1(node) {
+      var _0_0, t1, _this = this,
+        value = type$.SassString._as(node.value.value)._string$_text;
+      $label0$0: {
+        _0_0 = _this._minimumIndentation$1(value);
+        if (_0_0 == null) {
+          _this._serialize$_buffer.write$1(0, value);
+          break $label0$0;
+        }
+        if (-1 === _0_0) {
+          t1 = _this._serialize$_buffer;
+          t1.write$1(0, A.trimAsciiRight(value, true));
+          t1.writeCharCode$1(32);
+          break $label0$0;
+        }
+        t1 = node.name.span;
+        t1 = t1.get$start(t1);
+        _this._writeWithIndent$2(value, Math.min(_0_0, t1.file.getColumn$1(t1.offset)));
+      }
+    },
+    _minimumIndentation$1(text) {
+      var character, t2, min, next, min0,
+        scanner = A.LineScanner$(text),
+        t1 = scanner.string.length;
+      while (true) {
+        if (scanner._string_scanner$_position !== t1) {
+          character = scanner.super$StringScanner$readChar();
+          scanner._adjustLineAndColumn$1(character);
+          t2 = character !== 10;
+        } else
+          t2 = false;
+        if (!t2)
+          break;
+      }
+      if (scanner._string_scanner$_position === t1)
+        return scanner.peekChar$1(-1) === 10 ? -1 : null;
+      for (min = null; scanner._string_scanner$_position !== t1;) {
+        for (; scanner._string_scanner$_position !== t1;) {
+          next = scanner.peekChar$0();
+          if (next !== 32 && next !== 9)
+            break;
+          scanner._adjustLineAndColumn$1(scanner.super$StringScanner$readChar());
+        }
+        if (scanner._string_scanner$_position === t1 || scanner.scanChar$1(10))
+          continue;
+        min0 = scanner._line_scanner$_column;
+        min = min == null ? min0 : Math.min(min, min0);
+        while (true) {
+          if (scanner._string_scanner$_position !== t1) {
+            character = scanner.super$StringScanner$readChar();
+            scanner._adjustLineAndColumn$1(character);
+            t2 = character !== 10;
+          } else
+            t2 = false;
+          if (!t2)
+            break;
+        }
+      }
+      return min == null ? -1 : min;
+    },
+    _writeWithIndent$2(text, minimumIndentation) {
+      var t1, t2, t3, character, lineStart, newlines, end,
+        scanner = A.LineScanner$(text);
+      for (t1 = scanner.string, t2 = t1.length, t3 = this._serialize$_buffer; scanner._string_scanner$_position !== t2;) {
+        character = scanner.super$StringScanner$readChar();
+        scanner._adjustLineAndColumn$1(character);
+        if (character === 10)
+          break;
+        t3.writeCharCode$1(character);
+      }
+      for (; true;) {
+        lineStart = scanner._string_scanner$_position;
+        for (newlines = 1; true;) {
+          if (scanner._string_scanner$_position === t2) {
+            t3.writeCharCode$1(32);
+            return;
+          }
+          $label0$2: {
+            character = scanner.super$StringScanner$readChar();
+            scanner._adjustLineAndColumn$1(character);
+            if (32 === character || 9 === character)
+              continue;
+            if (10 === character) {
+              lineStart = scanner._string_scanner$_position;
+              ++newlines;
+              break $label0$2;
+            }
+            break;
+          }
+        }
+        this._writeTimes$2(10, newlines);
+        this._writeIndentation$0();
+        end = scanner._string_scanner$_position;
+        t3.write$1(0, B.JSString_methods.substring$2(t1, lineStart + minimumIndentation, end));
+        for (; true;) {
+          if (scanner._string_scanner$_position === t2)
+            return;
+          character = scanner.super$StringScanner$readChar();
+          scanner._adjustLineAndColumn$1(character);
+          if (character === 10)
+            break;
+          t3.writeCharCode$1(character);
+        }
+      }
+    },
+    visitCalculation$1(value) {
+      var t2, _this = this,
+        t1 = _this._serialize$_buffer;
+      t1.write$1(0, value.name);
+      t1.writeCharCode$1(40);
+      t2 = _this._style === B.OutputStyle_1 ? "," : ", ";
+      _this._writeBetween$3(value.$arguments, t2, _this.get$_writeCalculationValue());
+      t1.writeCharCode$1(41);
+    },
+    _writeCalculationValue$1(value) {
+      var _2_4_isSet, _2_4, t1, _0_0, _1_0, first, rest, operator, left, right, parenthesizeLeft, operatorWhitespace, t2, parenthesizeRight, _this = this, _null = null;
+      $label1$1: {
+        _2_4_isSet = value instanceof A.SassNumber;
+        if (_2_4_isSet) {
+          _2_4 = value.get$hasComplexUnits();
+          t1 = _2_4 && !_this._inspect;
+        } else {
+          _2_4 = _null;
+          t1 = false;
+        }
+        if (t1)
+          throw A.wrapException(A.SassScriptException$(A.S(value) + " isn't a valid CSS value.", _null));
+        if (_2_4_isSet && !isFinite(value._number$_value)) {
+          $label0$0: {
+            _0_0 = value._number$_value;
+            if (1 / 0 === _0_0) {
+              _this._serialize$_buffer.write$1(0, "infinity");
+              break $label0$0;
+            }
+            if (-1 / 0 === _0_0) {
+              _this._serialize$_buffer.write$1(0, "-infinity");
+              break $label0$0;
+            }
+            if (isNaN(_0_0))
+              _this._serialize$_buffer.write$1(0, "NaN");
+          }
+          t1 = J.getInterceptor$x(value);
+          _this._writeCalculationUnits$2(t1.get$numeratorUnits(value), t1.get$denominatorUnits(value));
+          break $label1$1;
+        }
+        if (_2_4_isSet)
+          t1 = _2_4;
+        else
+          t1 = false;
+        if (t1) {
+          _this._writeNumber$1(value._number$_value);
+          t1 = J.getInterceptor$x(value);
+          _1_0 = t1.get$numeratorUnits(value);
+          if (_1_0.length >= 1) {
+            first = _1_0[0];
+            rest = B.JSArray_methods.sublist$1(_1_0, 1);
+            _this._serialize$_buffer.write$1(0, first);
+            _this._writeCalculationUnits$2(rest, t1.get$denominatorUnits(value));
+          } else
+            _this._writeCalculationUnits$2(A._setArrayType([], type$.JSArray_String), t1.get$denominatorUnits(value));
+          break $label1$1;
+        }
+        if (value instanceof A.Value) {
+          value.accept$1(_this);
+          break $label1$1;
+        }
+        t1 = value instanceof A.CalculationOperation;
+        if (t1) {
+          operator = value._operator;
+          left = value._left;
+          right = value._right;
+          right = right;
+        } else {
+          right = _null;
+          left = right;
+          operator = left;
+        }
+        if (t1) {
+          parenthesizeLeft = left instanceof A.CalculationOperation && left._operator.precedence < operator.precedence;
+          if (parenthesizeLeft)
+            _this._serialize$_buffer.writeCharCode$1(40);
+          _this._writeCalculationValue$1(left);
+          if (parenthesizeLeft)
+            _this._serialize$_buffer.writeCharCode$1(41);
+          operatorWhitespace = _this._style !== B.OutputStyle_1 || operator.precedence === 1;
+          if (operatorWhitespace)
+            _this._serialize$_buffer.writeCharCode$1(32);
+          t1 = _this._serialize$_buffer;
+          t1.write$1(0, operator.operator);
+          if (operatorWhitespace)
+            t1.writeCharCode$1(32);
+          if (!(right instanceof A.CalculationOperation && _this._parenthesizeCalculationRhs$2(operator, right._operator)))
+            if (operator === B.CalculationOperator_Qf1) {
+              if (right instanceof A.SassNumber)
+                t2 = isFinite(right._number$_value) ? right.get$hasComplexUnits() : right.get$hasUnits();
+              else
+                t2 = false;
+              parenthesizeRight = t2;
+            } else
+              parenthesizeRight = false;
+          else
+            parenthesizeRight = true;
+          if (parenthesizeRight)
+            t1.writeCharCode$1(40);
+          _this._writeCalculationValue$1(right);
+          if (parenthesizeRight)
+            t1.writeCharCode$1(41);
+        }
+      }
+    },
+    _writeCalculationUnits$2(numeratorUnits, denominatorUnits) {
+      var t1, t2, t3, t4;
+      for (t1 = J.get$iterator$ax(numeratorUnits), t2 = this._serialize$_buffer, t3 = this._style !== B.OutputStyle_1; t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(42);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(49);
+        t2.write$1(0, t4);
+      }
+      for (t1 = J.get$iterator$ax(denominatorUnits); t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(47);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(49);
+        t2.write$1(0, t4);
+      }
+    },
+    _parenthesizeCalculationRhs$2(outer, right) {
+      var t1;
+      $label0$0: {
+        if (B.CalculationOperator_Qf1 === outer) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (B.CalculationOperator_g2q === outer) {
+          t1 = false;
+          break $label0$0;
+        }
+        t1 = right === B.CalculationOperator_g2q || right === B.CalculationOperator_CxF;
+        break $label0$0;
+      }
+      return t1;
+    },
+    visitColor$1(value) {
+      var hexLength, _0_0, t1, $name, _1_0, opaque, t2, _3_0, _this = this;
+      if (_this._style === B.OutputStyle_1)
+        if (!A.fuzzyEquals(value._alpha, 1))
+          _this._writeRgb$1(value);
+        else {
+          hexLength = _this._canUseShortHex$1(value) ? 4 : 7;
+          _0_0 = $.$get$namesByColor().$index(0, value);
+          if (_0_0 != null) {
+            t1 = _0_0.length <= hexLength;
+            $name = _0_0;
+          } else {
+            $name = null;
+            t1 = false;
+          }
+          if (t1)
+            _this._serialize$_buffer.write$1(0, $name);
+          else {
+            t1 = _this._serialize$_buffer;
+            if (_this._canUseShortHex$1(value)) {
+              t1.writeCharCode$1(35);
+              t1.writeCharCode$1(A.hexCharFor(value.get$red(0) & 15));
+              t1.writeCharCode$1(A.hexCharFor(value.get$green(0) & 15));
+              t1.writeCharCode$1(A.hexCharFor(value.get$blue(0) & 15));
+            } else {
+              t1.writeCharCode$1(35);
+              _this._writeHexComponent$1(value.get$red(0));
+              _this._writeHexComponent$1(value.get$green(0));
+              _this._writeHexComponent$1(value.get$blue(0));
+            }
+          }
+        }
+      else {
+        _1_0 = value.format;
+        if (_1_0 != null)
+          $label0$0: {
+            if (B._ColorFormatEnum_rgbFunction === _1_0) {
+              _this._writeRgb$1(value);
+              break $label0$0;
+            }
+            if (B._ColorFormatEnum_hslFunction === _1_0) {
+              t1 = value._alpha;
+              opaque = A.fuzzyEquals(t1, 1);
+              t2 = _this._serialize$_buffer;
+              t2.write$1(0, opaque ? "hsl(" : "hsla(");
+              _this._writeNumber$1(value.get$hue(0));
+              t2.write$1(0, ", ");
+              _this._writeNumber$1(value.get$saturation(0));
+              t2.writeCharCode$1(37);
+              t2.write$1(0, ", ");
+              _this._writeNumber$1(value.get$lightness(0));
+              t2.writeCharCode$1(37);
+              if (!opaque) {
+                t2.write$1(0, ", ");
+                _this._writeNumber$1(t1);
+              }
+              t2.writeCharCode$1(41);
+              break $label0$0;
+            }
+            if (_1_0 instanceof A.SpanColorFormat) {
+              _this._serialize$_buffer.write$1(0, _1_0._color$_span.get$text());
+              break $label0$0;
+            }
+          }
+        else {
+          _3_0 = $.$get$namesByColor().$index(0, value);
+          if (_3_0 != null) {
+            t1 = !A.fuzzyEquals(value._alpha, 0);
+            $name = _3_0;
+          } else {
+            $name = null;
+            t1 = false;
+          }
+          if (t1)
+            _this._serialize$_buffer.write$1(0, $name);
+          else if (A.fuzzyEquals(value._alpha, 1)) {
+            _this._serialize$_buffer.writeCharCode$1(35);
+            _this._writeHexComponent$1(value.get$red(0));
+            _this._writeHexComponent$1(value.get$green(0));
+            _this._writeHexComponent$1(value.get$blue(0));
+          } else
+            _this._writeRgb$1(value);
+        }
+      }
+    },
+    _writeRgb$1(value) {
+      var t3,
+        t1 = value._alpha,
+        opaque = A.fuzzyEquals(t1, 1),
+        t2 = this._serialize$_buffer;
+      t2.write$1(0, opaque ? "rgb(" : "rgba(");
+      t2.write$1(0, value.get$red(0));
+      t3 = this._style === B.OutputStyle_1;
+      t2.write$1(0, t3 ? "," : ", ");
+      t2.write$1(0, value.get$green(0));
+      t2.write$1(0, t3 ? "," : ", ");
+      t2.write$1(0, value.get$blue(0));
+      if (!opaque) {
+        t2.write$1(0, t3 ? "," : ", ");
+        this._writeNumber$1(t1);
+      }
+      t2.writeCharCode$1(41);
+    },
+    _canUseShortHex$1(color) {
+      var t1 = color.get$red(0);
+      if ((t1 & 15) === B.JSInt_methods._shrOtherPositive$1(t1, 4)) {
+        t1 = color.get$green(0);
+        if ((t1 & 15) === B.JSInt_methods._shrOtherPositive$1(t1, 4)) {
+          t1 = color.get$blue(0);
+          t1 = (t1 & 15) === B.JSInt_methods._shrOtherPositive$1(t1, 4);
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      return t1;
+    },
+    _writeHexComponent$1(color) {
+      var t1 = this._serialize$_buffer;
+      t1.writeCharCode$1(A.hexCharFor(B.JSInt_methods._shrOtherPositive$1(color, 4)));
+      t1.writeCharCode$1(A.hexCharFor(color & 15));
+    },
+    visitList$1(value) {
+      var t2, t3, singleton, t4, t5, _this = this,
+        t1 = value._hasBrackets;
+      if (t1)
+        _this._serialize$_buffer.writeCharCode$1(91);
+      else if (value._list$_contents.length === 0) {
+        if (!_this._inspect)
+          throw A.wrapException(A.SassScriptException$("() isn't a valid CSS value.", null));
+        _this._serialize$_buffer.write$1(0, "()");
+        return;
+      }
+      t2 = _this._inspect;
+      if (t2)
+        if (value._list$_contents.length === 1) {
+          t3 = value._separator;
+          t3 = t3 === B.ListSeparator_ECn || t3 === B.ListSeparator_cQA;
+          singleton = t3;
+        } else
+          singleton = false;
+      else
+        singleton = false;
+      if (singleton && !t1)
+        _this._serialize$_buffer.writeCharCode$1(40);
+      t3 = value._list$_contents;
+      t3 = t2 ? t3 : new A.WhereIterable(t3, new A._SerializeVisitor_visitList_closure(), A._arrayInstanceType(t3)._eval$1("WhereIterable<1>"));
+      t4 = value._separator;
+      t5 = _this._separatorString$1(t4);
+      _this._writeBetween$3(t3, t5, t2 ? new A._SerializeVisitor_visitList_closure0(_this, value) : new A._SerializeVisitor_visitList_closure1(_this));
+      if (singleton) {
+        t2 = _this._serialize$_buffer;
+        t2.write$1(0, t4.separator);
+        if (!t1)
+          t2.writeCharCode$1(41);
+      }
+      if (t1)
+        _this._serialize$_buffer.writeCharCode$1(93);
+    },
+    _separatorString$1(separator) {
+      var t1;
+      $label0$0: {
+        if (B.ListSeparator_ECn === separator) {
+          t1 = this._style === B.OutputStyle_1 ? "," : ", ";
+          break $label0$0;
+        }
+        if (B.ListSeparator_cQA === separator) {
+          t1 = this._style === B.OutputStyle_1 ? "/" : " / ";
+          break $label0$0;
+        }
+        if (B.ListSeparator_nbm === separator) {
+          t1 = " ";
+          break $label0$0;
+        }
+        t1 = "";
+        break $label0$0;
+      }
+      return t1;
+    },
+    _elementNeedsParens$2(separator, value) {
+      var t1;
+      $label1$1: {
+        if (value instanceof A.SassList && value._list$_contents.length > 1 && !value._hasBrackets) {
+          $label0$0: {
+            if (B.ListSeparator_ECn === separator) {
+              t1 = value._separator === B.ListSeparator_ECn;
+              break $label0$0;
+            }
+            if (B.ListSeparator_cQA === separator) {
+              t1 = value._separator;
+              t1 = t1 === B.ListSeparator_ECn || t1 === B.ListSeparator_cQA;
+              break $label0$0;
+            }
+            t1 = value._separator !== B.ListSeparator_undecided_null_undecided;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        t1 = false;
+        break $label1$1;
+      }
+      return t1;
+    },
+    visitMap$1(map) {
+      var t1, t2, _this = this;
+      if (!_this._inspect)
+        throw A.wrapException(A.SassScriptException$(map.toString$0(0) + " isn't a valid CSS value.", null));
+      t1 = _this._serialize$_buffer;
+      t1.writeCharCode$1(40);
+      t2 = map._map$_contents;
+      _this._writeBetween$3(t2.get$entries(t2), ", ", new A._SerializeVisitor_visitMap_closure(_this));
+      t1.writeCharCode$1(41);
+    },
+    _writeMapElement$1(value) {
+      var needsParens = value instanceof A.SassList && value._separator === B.ListSeparator_ECn && !value._hasBrackets;
+      if (needsParens)
+        this._serialize$_buffer.writeCharCode$1(40);
+      value.accept$1(this);
+      if (needsParens)
+        this._serialize$_buffer.writeCharCode$1(41);
+    },
+    visitNumber$1(value) {
+      var before, after, t1, _1_0, _this = this,
+        _0_0 = value.asSlash;
+      if (type$.Record_2_nullable_Object_and_nullable_Object._is(_0_0)) {
+        before = _0_0._0;
+        after = _0_0._1;
+        _this.visitNumber$1(before);
+        _this._serialize$_buffer.writeCharCode$1(47);
+        _this.visitNumber$1(after);
+        return;
+      }
+      t1 = value._number$_value;
+      if (!isFinite(t1)) {
+        _this.visitCalculation$1(new A.SassCalculation("calc", A.List_List$unmodifiable(A._setArrayType([value], type$.JSArray_Object), type$.Object)));
+        return;
+      }
+      if (value.get$hasComplexUnits()) {
+        if (!_this._inspect)
+          throw A.wrapException(A.SassScriptException$(value.toString$0(0) + " isn't a valid CSS value.", null));
+        _this.visitCalculation$1(new A.SassCalculation("calc", A.List_List$unmodifiable(A._setArrayType([value], type$.JSArray_Object), type$.Object)));
+      } else {
+        _this._writeNumber$1(t1);
+        _1_0 = value.get$numeratorUnits(value);
+        if (_1_0.length === 1)
+          _this._serialize$_buffer.write$1(0, _1_0[0]);
+      }
+    },
+    _writeNumber$1(number) {
+      var text, _this = this,
+        _0_0 = A.fuzzyAsInt(number);
+      if (_0_0 != null) {
+        _this._serialize$_buffer.write$1(0, _this._removeExponent$1(B.JSInt_methods.toString$0(_0_0)));
+        return;
+      }
+      text = _this._removeExponent$1(B.JSNumber_methods.toString$0(number));
+      if (text.length < 12) {
+        if (_this._style === B.OutputStyle_1 && text.charCodeAt(0) === 48)
+          text = B.JSString_methods.substring$1(text, 1);
+        _this._serialize$_buffer.write$1(0, text);
+        return;
+      }
+      _this._writeRounded$1(text);
+    },
+    _removeExponent$1(text) {
+      var buffer, t2, t3, additionalZeroes,
+        negative = text.charCodeAt(0) === 45,
+        exponent = A._Cell$(),
+        t1 = text.length,
+        i = 0;
+      while (true) {
+        if (!(i < t1)) {
+          buffer = null;
+          break;
+        }
+        c$0: {
+          if (text.charCodeAt(i) !== 101)
+            break c$0;
+          buffer = new A.StringBuffer("");
+          t2 = buffer._contents = "" + A.Primitives_stringFromCharCode(text.charCodeAt(0));
+          if (negative) {
+            t2 += A.Primitives_stringFromCharCode(text.charCodeAt(1));
+            buffer._contents = t2;
+            if (i > 3)
+              buffer._contents = t2 + B.JSString_methods.substring$2(text, 3, i);
+          } else if (i > 2)
+            buffer._contents = t2 + B.JSString_methods.substring$2(text, 2, i);
+          exponent.__late_helper$_value = A.int_parse(B.JSString_methods.substring$2(text, i + 1, t1), null);
+          break;
+        }
+        ++i;
+      }
+      if (buffer == null)
+        return text;
+      if (exponent._readLocal$0() > 0) {
+        t1 = exponent._readLocal$0();
+        t2 = buffer._contents;
+        t3 = negative ? 1 : 0;
+        additionalZeroes = t1 - (t2.length - 1 - t3);
+        for (t1 = t2, i = 0; i < additionalZeroes; ++i) {
+          t1 = A.Primitives_stringFromCharCode(48);
+          t1 = buffer._contents += t1;
+        }
+        return t1.charCodeAt(0) == 0 ? t1 : t1;
+      } else {
+        negative = text.charCodeAt(0) === 45;
+        t1 = (negative ? "" + A.Primitives_stringFromCharCode(45) : "") + "0.";
+        i = -1;
+        while (true) {
+          t2 = exponent.__late_helper$_value;
+          if (t2 === exponent)
+            A.throwExpression(A.LateError$localNI(""));
+          if (!(i > t2))
+            break;
+          t1 += A.Primitives_stringFromCharCode(48);
+          --i;
+        }
+        if (negative) {
+          t2 = buffer._contents;
+          t2 = B.JSString_methods.substring$1(t2.charCodeAt(0) == 0 ? t2 : t2, 1);
+        } else
+          t2 = buffer;
+        t2 = t1 + A.S(t2);
+        return t2.charCodeAt(0) == 0 ? t2 : t2;
+      }
+    },
+    _writeRounded$1(text) {
+      var t1, digits, negative, textIndex, digitsIndex, textIndex0, codeUnit, digitsIndex0, indexAfterPrecision, digitsIndex1, newDigit, writtenIndex, t2, _this = this;
+      if (B.JSString_methods.endsWith$1(text, ".0")) {
+        _this._serialize$_buffer.write$1(0, B.JSString_methods.substring$2(text, 0, text.length - 2));
+        return;
+      }
+      t1 = text.length;
+      digits = new Uint8Array(t1 + 1);
+      negative = text.charCodeAt(0) === 45;
+      textIndex = negative ? 1 : 0;
+      for (digitsIndex = 1; true; textIndex = textIndex0, digitsIndex = digitsIndex0) {
+        if (textIndex === t1) {
+          _this._serialize$_buffer.write$1(0, text);
+          return;
+        }
+        textIndex0 = textIndex + 1;
+        codeUnit = text.charCodeAt(textIndex);
+        if (codeUnit === 46) {
+          textIndex = textIndex0;
+          break;
+        }
+        digitsIndex0 = digitsIndex + 1;
+        digits[digitsIndex] = codeUnit - 48;
+      }
+      indexAfterPrecision = textIndex + 10;
+      if (indexAfterPrecision >= t1) {
+        _this._serialize$_buffer.write$1(0, text);
+        return;
+      }
+      for (digitsIndex0 = digitsIndex; textIndex < indexAfterPrecision; textIndex = textIndex0, digitsIndex0 = digitsIndex1) {
+        digitsIndex1 = digitsIndex0 + 1;
+        textIndex0 = textIndex + 1;
+        digits[digitsIndex0] = text.charCodeAt(textIndex) - 48;
+      }
+      if (text.charCodeAt(textIndex) - 48 >= 5)
+        for (; true; digitsIndex0 = digitsIndex1) {
+          digitsIndex1 = digitsIndex0 - 1;
+          newDigit = digits[digitsIndex1] + 1;
+          digits[digitsIndex1] = newDigit;
+          if (newDigit !== 10)
+            break;
+        }
+      for (; digitsIndex0 < digitsIndex; ++digitsIndex0)
+        digits[digitsIndex0] = 0;
+      while (true) {
+        t1 = digitsIndex0 > digitsIndex;
+        if (!(t1 && digits[digitsIndex0 - 1] === 0))
+          break;
+        --digitsIndex0;
+      }
+      if (digitsIndex0 === 2 && digits[0] === 0 && digits[1] === 0) {
+        _this._serialize$_buffer.writeCharCode$1(48);
+        return;
+      }
+      if (negative)
+        _this._serialize$_buffer.writeCharCode$1(45);
+      if (digits[0] === 0)
+        writtenIndex = _this._style === B.OutputStyle_1 && digits[1] === 0 ? 2 : 1;
+      else
+        writtenIndex = 0;
+      for (t2 = _this._serialize$_buffer; writtenIndex < digitsIndex; ++writtenIndex)
+        t2.writeCharCode$1(48 + digits[writtenIndex]);
+      if (t1) {
+        t2.writeCharCode$1(46);
+        for (; writtenIndex < digitsIndex0; ++writtenIndex)
+          t2.writeCharCode$1(48 + digits[writtenIndex]);
+      }
+    },
+    _visitQuotedString$2$forceDoubleQuote(string, forceDoubleQuote) {
+      var t1, includesSingleQuote, includesDoubleQuote, i, char, _1_2, _1_4, _0_0, quote, _this = this,
+        buffer = forceDoubleQuote ? _this._serialize$_buffer : new A.StringBuffer("");
+      if (forceDoubleQuote)
+        buffer.writeCharCode$1(34);
+      for (t1 = string.length, includesSingleQuote = false, includesDoubleQuote = false, i = 0; i < t1; ++i) {
+        char = string.charCodeAt(i);
+        _1_2 = 39 === char;
+        if (_1_2 && forceDoubleQuote) {
+          buffer.writeCharCode$1(39);
+          continue;
+        }
+        if (_1_2 && includesDoubleQuote) {
+          _this._visitQuotedString$2$forceDoubleQuote(string, true);
+          return;
+        }
+        if (_1_2) {
+          buffer.writeCharCode$1(39);
+          includesSingleQuote = true;
+          continue;
+        }
+        _1_4 = 34 === char;
+        if (_1_4 && forceDoubleQuote) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(34);
+          continue;
+        }
+        if (_1_4 && includesSingleQuote) {
+          _this._visitQuotedString$2$forceDoubleQuote(string, true);
+          return;
+        }
+        if (_1_4) {
+          buffer.writeCharCode$1(34);
+          includesDoubleQuote = true;
+          continue;
+        }
+        if (0 === char || 1 === char || 2 === char || 3 === char || 4 === char || 5 === char || 6 === char || 7 === char || 8 === char || 10 === char || 11 === char || 12 === char || 13 === char || 14 === char || 15 === char || 16 === char || 17 === char || 18 === char || 19 === char || 20 === char || 21 === char || 22 === char || 23 === char || 24 === char || 25 === char || 26 === char || 27 === char || 28 === char || 29 === char || 30 === char || 31 === char || 127 === char) {
+          _this._writeEscape$4(buffer, char, string, i);
+          continue;
+        }
+        if (92 === char) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(92);
+          continue;
+        }
+        _0_0 = _this._tryPrivateUseCharacter$4(buffer, char, string, i);
+        if (_0_0 != null)
+          i = _0_0;
+        else
+          buffer.writeCharCode$1(char);
+      }
+      if (forceDoubleQuote)
+        buffer.writeCharCode$1(34);
+      else {
+        quote = includesDoubleQuote ? 39 : 34;
+        t1 = _this._serialize$_buffer;
+        t1.writeCharCode$1(quote);
+        t1.write$1(0, buffer);
+        t1.writeCharCode$1(quote);
+      }
+    },
+    _visitQuotedString$1(string) {
+      return this._visitQuotedString$2$forceDoubleQuote(string, false);
+    },
+    _visitUnquotedString$1(string) {
+      var t1, t2, afterNewline, i, _1_0, _0_0;
+      for (t1 = string.length, t2 = this._serialize$_buffer, afterNewline = false, i = 0; i < t1; ++i) {
+        _1_0 = string.charCodeAt(i);
+        if (10 === _1_0) {
+          t2.writeCharCode$1(32);
+          afterNewline = true;
+          continue;
+        }
+        if (32 === _1_0) {
+          if (!afterNewline)
+            t2.writeCharCode$1(32);
+          continue;
+        }
+        _0_0 = this._tryPrivateUseCharacter$4(t2, _1_0, string, i);
+        if (_0_0 != null)
+          i = _0_0;
+        else
+          t2.writeCharCode$1(_1_0);
+        afterNewline = false;
+      }
+    },
+    _tryPrivateUseCharacter$4(buffer, codeUnit, string, i) {
+      var t1;
+      if (this._style === B.OutputStyle_1)
+        return null;
+      if (codeUnit >= 57344 && codeUnit <= 63743) {
+        this._writeEscape$4(buffer, codeUnit, string, i);
+        return i;
+      }
+      if (codeUnit >>> 7 === 439 && string.length > i + 1) {
+        t1 = i + 1;
+        this._writeEscape$4(buffer, 65536 + ((codeUnit & 1023) << 10) + (string.charCodeAt(t1) & 1023), string, t1);
+        return t1;
+      }
+      return null;
+    },
+    _writeEscape$4(buffer, character, string, i) {
+      var t1, next;
+      buffer.writeCharCode$1(92);
+      buffer.write$1(0, B.JSInt_methods.toRadixString$1(character, 16));
+      t1 = i + 1;
+      if (string.length === t1)
+        return;
+      next = string.charCodeAt(t1);
+      if (A.CharacterExtension_get_isHex(next) || 32 === next || 9 === next)
+        buffer.writeCharCode$1(32);
+    },
+    visitAttributeSelector$1(attribute) {
+      var _0_0, t2,
+        t1 = this._serialize$_buffer;
+      t1.writeCharCode$1(91);
+      t1.write$1(0, attribute.name);
+      _0_0 = attribute.value;
+      if (_0_0 != null) {
+        t1.write$1(0, attribute.op);
+        if (A.Parser_isIdentifier(_0_0) && !B.JSString_methods.startsWith$1(_0_0, "--")) {
+          t1.write$1(0, _0_0);
+          t2 = attribute.modifier;
+          if (t2 != null)
+            t1.writeCharCode$1(32);
+        } else {
+          this._visitQuotedString$1(_0_0);
+          t2 = attribute.modifier;
+          if (t2 != null)
+            if (this._style !== B.OutputStyle_1)
+              t1.writeCharCode$1(32);
+        }
+        A.NullableExtension_andThen(t2, t1.get$write(t1));
+      }
+      t1.writeCharCode$1(93);
+    },
+    visitClassSelector$1(klass) {
+      var t1 = this._serialize$_buffer;
+      t1.writeCharCode$1(46);
+      t1.write$1(0, klass.name);
+    },
+    visitComplexSelector$1(complex) {
+      var t2, t3, t4, t5, t6, i, component, t7, t8, t9, _this = this,
+        t1 = complex.leadingCombinators;
+      _this._writeCombinators$1(t1);
+      if (t1.length >= 1 && complex.components.length >= 1)
+        if (_this._style !== B.OutputStyle_1)
+          _this._serialize$_buffer.writeCharCode$1(32);
+      for (t1 = complex.components, t2 = t1.length, t3 = t2 - 1, t4 = _this._serialize$_buffer, t5 = _this._style === B.OutputStyle_1, t6 = !t5, i = 0; i < t2; ++i) {
+        component = t1[i];
+        _this.visitCompoundSelector$1(component.selector);
+        t7 = component.combinators;
+        t8 = t7.length === 0;
+        if (!t8)
+          if (t6)
+            t4.writeCharCode$1(32);
+        t9 = t5 ? "" : " ";
+        _this._writeBetween$3(t7, t9, t4.get$write(t4));
+        if (i !== t3)
+          t7 = !t5 || t8;
+        else
+          t7 = false;
+        if (t7)
+          t4.writeCharCode$1(32);
+      }
+    },
+    _writeCombinators$1(combinators) {
+      var t1 = this._style === B.OutputStyle_1 ? "" : " ",
+        t2 = this._serialize$_buffer;
+      return this._writeBetween$3(combinators, t1, t2.get$write(t2));
+    },
+    visitCompoundSelector$1(compound) {
+      var t2, t3, _i,
+        t1 = this._serialize$_buffer,
+        start = t1.get$length(t1);
+      for (t2 = compound.components, t3 = t2.length, _i = 0; _i < t3; ++_i)
+        t2[_i].accept$1(this);
+      if (t1.get$length(t1) === start)
+        t1.writeCharCode$1(42);
+    },
+    visitIDSelector$1(id) {
+      var t1 = this._serialize$_buffer;
+      t1.writeCharCode$1(35);
+      t1.write$1(0, id.name);
+    },
+    visitSelectorList$1(list) {
+      var t1, t2, t3, first, t4, _this = this,
+        complexes = list.components;
+      for (t1 = J.get$iterator$ax(_this._inspect ? complexes : new A.WhereIterable(complexes, new A._SerializeVisitor_visitSelectorList_closure(), A._arrayInstanceType(complexes)._eval$1("WhereIterable<1>"))), t2 = _this._style !== B.OutputStyle_1, t3 = _this._serialize$_buffer, first = true; t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        if (first)
+          first = false;
+        else {
+          t3.writeCharCode$1(44);
+          if (t4.lineBreak) {
+            if (t2)
+              t3.write$1(0, "\n");
+            _this._writeIndentation$0();
+          } else if (t2)
+            t3.writeCharCode$1(32);
+        }
+        _this.visitComplexSelector$1(t4);
+      }
+    },
+    visitParentSelector$1($parent) {
+      var t1 = this._serialize$_buffer;
+      t1.writeCharCode$1(38);
+      A.NullableExtension_andThen($parent.suffix, t1.get$write(t1));
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      var t1 = this._serialize$_buffer;
+      t1.writeCharCode$1(37);
+      t1.write$1(0, placeholder.name);
+    },
+    visitPseudoSelector$1(pseudo) {
+      var _0_4, t2, t3,
+        t1 = pseudo.name;
+      if ("not" === t1) {
+        _0_4 = pseudo.selector;
+        if (_0_4 instanceof A.SelectorList)
+          t2 = (_0_4 == null ? type$.SelectorList._as(_0_4) : _0_4).accept$1(B._IsInvisibleVisitor_true);
+        else
+          t2 = false;
+      } else
+        t2 = false;
+      if (t2)
+        return;
+      t2 = this._serialize$_buffer;
+      t2.writeCharCode$1(58);
+      if (!pseudo.isSyntacticClass)
+        t2.writeCharCode$1(58);
+      t2.write$1(0, t1);
+      t1 = pseudo.argument;
+      t3 = t1 == null;
+      if (t3 && pseudo.selector == null)
+        return;
+      t2.writeCharCode$1(40);
+      if (!t3) {
+        t2.write$1(0, t1);
+        if (pseudo.selector != null)
+          t2.writeCharCode$1(32);
+      }
+      A.NullableExtension_andThen(pseudo.selector, this.get$visitSelectorList());
+      t2.writeCharCode$1(41);
+    },
+    visitTypeSelector$1(type) {
+      this._serialize$_buffer.write$1(0, type.name);
+    },
+    visitUniversalSelector$1(universal) {
+      var t2,
+        t1 = universal.namespace;
+      if (t1 != null) {
+        t2 = this._serialize$_buffer;
+        t2.write$1(0, t1);
+        t2.writeCharCode$1(124);
+      }
+      this._serialize$_buffer.writeCharCode$1(42);
+    },
+    _serialize$_write$1(value) {
+      return this._serialize$_buffer.forSpan$2(value.span, new A._SerializeVisitor__write_closure(this, value));
+    },
+    _serialize$_visitChildren$1($parent) {
+      var t2, t3, t4, t5, t6, t7, prePrevious, previous, t8, previous0, t9, savedIndentation, _this = this,
+        t1 = _this._serialize$_buffer;
+      t1.writeCharCode$1(123);
+      for (t2 = $parent.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t4 = _this._style === B.OutputStyle_1, t5 = !t4, t6 = _this.get$_requiresSemicolon(), t7 = !_this._inspect, t3 = t3._eval$1("ListBase.E"), prePrevious = null, previous = null; t2.moveNext$0();) {
+        t8 = t2.__internal$_current;
+        previous0 = t8 == null ? t3._as(t8) : t8;
+        if (t7)
+          t8 = t4 ? previous0.accept$1(B._IsInvisibleVisitor_true_true) : previous0.accept$1(B._IsInvisibleVisitor_true_false);
+        else
+          t8 = false;
+        if (t8)
+          continue;
+        t8 = previous == null;
+        t9 = t8 ? null : t6.call$1(previous);
+        if (t9 == null ? false : t9)
+          t1.writeCharCode$1(59);
+        if (_this._isTrailingComment$2(previous0, t8 ? $parent : previous)) {
+          if (t5)
+            t1.writeCharCode$1(32);
+          savedIndentation = _this._indentation;
+          _this._indentation = 0;
+          new A._SerializeVisitor__visitChildren_closure(_this, previous0).call$0();
+          _this._indentation = savedIndentation;
+        } else {
+          if (t5)
+            t1.write$1(0, "\n");
+          ++_this._indentation;
+          new A._SerializeVisitor__visitChildren_closure0(_this, previous0).call$0();
+          --_this._indentation;
+        }
+        prePrevious = previous;
+        previous = previous0;
+      }
+      if (previous != null) {
+        if ((type$.CssParentNode._is(previous) ? previous.get$isChildless() : !(previous instanceof A.ModifiableCssComment)) && t5)
+          t1.writeCharCode$1(59);
+        if (prePrevious == null && _this._isTrailingComment$2(previous, $parent)) {
+          if (t5)
+            t1.writeCharCode$1(32);
+        } else {
+          _this._writeLineFeed$0();
+          _this._writeIndentation$0();
+        }
+      }
+      t1.writeCharCode$1(125);
+    },
+    _requiresSemicolon$1(node) {
+      return type$.CssParentNode._is(node) ? node.get$isChildless() : !(node instanceof A.ModifiableCssComment);
+    },
+    _isTrailingComment$2(node, previous) {
+      var t1, t2, t3, searchFrom, endOffset, t4, span;
+      if (this._style === B.OutputStyle_1)
+        return false;
+      if (!(node instanceof A.ModifiableCssComment))
+        return false;
+      t1 = node.span;
+      t2 = t1.get$sourceUrl(t1);
+      t3 = previous.get$span(previous);
+      if (!J.$eq$(t2, t3.get$sourceUrl(t3)))
+        return false;
+      t2 = previous.get$span(previous);
+      if (!(J.$eq$(t2.get$file(t2).url, t1.get$file(t1).url) && t2.get$start(t2).offset <= t1.get$start(t1).offset && t2.get$end(t2).offset >= t1.get$end(t1).offset)) {
+        t1 = t1.get$start(t1);
+        t1 = t1.file.getLine$1(t1.offset);
+        t2 = previous.get$span(previous);
+        t2 = t2.get$end(t2);
+        return t1 === t2.file.getLine$1(t2.offset);
+      }
+      t2 = t1.get$start(t1);
+      t3 = previous.get$span(previous);
+      searchFrom = t2.offset - t3.get$start(t3).offset - 1;
+      if (searchFrom < 0)
+        return false;
+      endOffset = Math.max(0, B.JSString_methods.lastIndexOf$2(previous.get$span(previous).get$text(), "{", searchFrom));
+      t2 = previous.get$span(previous);
+      t2 = t2.get$file(t2);
+      t3 = previous.get$span(previous);
+      t3 = t3.get$start(t3);
+      t4 = previous.get$span(previous);
+      span = t2.span$2(0, t3.offset, t4.get$start(t4).offset + endOffset);
+      t1 = t1.get$start(t1);
+      t1 = t1.file.getLine$1(t1.offset);
+      t4 = A.FileLocation$_(span.file, span._end);
+      return t1 === t4.file.getLine$1(t4.offset);
+    },
+    _writeLineFeed$0() {
+      if (this._style !== B.OutputStyle_1)
+        this._serialize$_buffer.write$1(0, "\n");
+    },
+    _writeIndentation$0() {
+      var _this = this;
+      if (_this._style === B.OutputStyle_1)
+        return;
+      _this._writeTimes$2(_this._indentCharacter, _this._indentation * _this._indentWidth);
+    },
+    _writeTimes$2(char, times) {
+      var t1, i;
+      for (t1 = this._serialize$_buffer, i = 0; i < times; ++i)
+        t1.writeCharCode$1(char);
+    },
+    _writeBetween$1$3(iterable, text, callback) {
+      var t1, t2, first, value;
+      for (t1 = J.get$iterator$ax(iterable), t2 = this._serialize$_buffer, first = true; t1.moveNext$0();) {
+        value = t1.get$current(t1);
+        if (first)
+          first = false;
+        else
+          t2.write$1(0, text);
+        callback.call$1(value);
+      }
+    },
+    _writeBetween$3(iterable, text, callback) {
+      return this._writeBetween$1$3(iterable, text, callback, type$.dynamic);
+    }
+  };
+  A._SerializeVisitor_visitCssComment_closure.prototype = {
+    call$0() {
+      var t2, t3, _0_0, minimumIndentation,
+        t1 = this.$this;
+      if (t1._style === B.OutputStyle_1 && this.node.text.charCodeAt(2) !== 33)
+        return;
+      t2 = this.node;
+      t3 = t2.text;
+      if (B.JSString_methods.startsWith$1(t3, A.RegExp_RegExp("/\\*# source(Mapping)?URL=", false)))
+        return;
+      _0_0 = t1._minimumIndentation$1(t3);
+      if (_0_0 != null) {
+        t2 = t2.span;
+        t2 = t2.get$start(t2);
+        minimumIndentation = Math.min(_0_0, t2.file.getColumn$1(t2.offset));
+        t1._writeIndentation$0();
+        t1._writeWithIndent$2(t3, minimumIndentation);
+      } else {
+        t1._writeIndentation$0();
+        t1._serialize$_buffer.write$1(0, t3);
+      }
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssAtRule_closure.prototype = {
+    call$0() {
+      var t3, _0_0,
+        t1 = this.$this,
+        t2 = t1._serialize$_buffer;
+      t2.writeCharCode$1(64);
+      t3 = this.node;
+      t1._serialize$_write$1(t3.name);
+      _0_0 = t3.value;
+      if (_0_0 != null) {
+        t2.writeCharCode$1(32);
+        t1._serialize$_write$1(_0_0);
+      }
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssMediaRule_closure.prototype = {
+    call$0() {
+      var t3, firstQuery, t4, t5,
+        t1 = this.$this,
+        t2 = t1._serialize$_buffer;
+      t2.write$1(0, "@media");
+      t3 = this.node.queries;
+      firstQuery = B.JSArray_methods.get$first(t3);
+      t4 = t1._style === B.OutputStyle_1;
+      if (t4)
+        if (firstQuery.modifier == null)
+          if (firstQuery.type == null) {
+            t5 = firstQuery.conditions;
+            t5 = t5.length === 1 && J.startsWith$1$s(B.JSArray_methods.get$first(t5), "(not ");
+          } else
+            t5 = true;
+        else
+          t5 = true;
+      else
+        t5 = true;
+      if (t5)
+        t2.writeCharCode$1(32);
+      t2 = t4 ? "," : ", ";
+      t1._writeBetween$3(t3, t2, t1.get$_visitMediaQuery());
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssImport_closure.prototype = {
+    call$0() {
+      var t3, t4, _0_0,
+        t1 = this.$this,
+        t2 = t1._serialize$_buffer;
+      t2.write$1(0, "@import");
+      t3 = t1._style !== B.OutputStyle_1;
+      if (t3)
+        t2.writeCharCode$1(32);
+      t4 = this.node;
+      t2.forSpan$2(t4.url.span, new A._SerializeVisitor_visitCssImport__closure(t1, t4));
+      _0_0 = t4.modifiers;
+      if (_0_0 != null) {
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.write$1(0, _0_0);
+      }
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssImport__closure.prototype = {
+    call$0() {
+      return this.$this._writeImportUrl$1(this.node.url.value);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitCssKeyframeBlock_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._style === B.OutputStyle_1 ? "," : ", ",
+        t3 = t1._serialize$_buffer;
+      return t1._writeBetween$3(this.node.selector.value, t2, t3.get$write(t3));
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitCssStyleRule_closure.prototype = {
+    call$0() {
+      return this.$this.visitSelectorList$1(this.node._style_rule$_selector._box$_inner.value);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitCssSupportsRule_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._serialize$_buffer;
+      t2.write$1(0, "@supports");
+      if (!(t1._style === B.OutputStyle_1 && J.codeUnitAt$1$s(this.node.condition.value, 0) === 40))
+        t2.writeCharCode$1(32);
+      t1._serialize$_write$1(this.node.condition);
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssDeclaration_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.node;
+      if (t1._style === B.OutputStyle_1)
+        t1._writeFoldedValue$1(t2);
+      else
+        t1._writeReindentedValue$1(t2);
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssDeclaration_closure0.prototype = {
+    call$0() {
+      return this.node.value.value.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitList_closure.prototype = {
+    call$1(element) {
+      return !element.get$isBlank();
+    },
+    $signature: 73
+  };
+  A._SerializeVisitor_visitList_closure0.prototype = {
+    call$1(element) {
+      var t1 = this.$this,
+        needsParens = t1._elementNeedsParens$2(this.value._separator, element);
+      if (needsParens)
+        t1._serialize$_buffer.writeCharCode$1(40);
+      element.accept$1(t1);
+      if (needsParens)
+        t1._serialize$_buffer.writeCharCode$1(41);
+    },
+    $signature: 58
+  };
+  A._SerializeVisitor_visitList_closure1.prototype = {
+    call$1(element) {
+      element.accept$1(this.$this);
+    },
+    $signature: 58
+  };
+  A._SerializeVisitor_visitMap_closure.prototype = {
+    call$1(entry) {
+      var t1 = this.$this;
+      t1._writeMapElement$1(entry.key);
+      t1._serialize$_buffer.write$1(0, ": ");
+      t1._writeMapElement$1(entry.value);
+    },
+    $signature: 273
+  };
+  A._SerializeVisitor_visitSelectorList_closure.prototype = {
+    call$1(complex) {
+      return !complex.accept$1(B._IsInvisibleVisitor_true);
+    },
+    $signature: 16
+  };
+  A._SerializeVisitor__write_closure.prototype = {
+    call$0() {
+      return this.$this._serialize$_buffer.write$1(0, this.value.value);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor__visitChildren_closure.prototype = {
+    call$0() {
+      return this.child.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor__visitChildren_closure0.prototype = {
+    call$0() {
+      this.child.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A.OutputStyle.prototype = {
+    _enumToString$0() {
+      return "OutputStyle." + this._name;
+    }
+  };
+  A.LineFeed.prototype = {
+    _enumToString$0() {
+      return "LineFeed." + this._name;
+    },
+    toString$0(_) {
+      return "lf";
+    }
+  };
+  A.StatementSearchVisitor.prototype = {
+    visitAtRootRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitAtRule$1(node) {
+      return A.NullableExtension_andThen(node.children, this.get$visitChildren());
+    },
+    visitContentBlock$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitContentRule$1(node) {
+      return null;
+    },
+    visitDebugRule$1(node) {
+      return null;
+    },
+    visitDeclaration$1(node) {
+      return A.NullableExtension_andThen(node.children, this.get$visitChildren());
+    },
+    visitEachRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitErrorRule$1(node) {
+      return null;
+    },
+    visitExtendRule$1(node) {
+      return null;
+    },
+    visitForRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitForwardRule$1(node) {
+      return null;
+    },
+    visitFunctionRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitIfRule$1(node) {
+      var t1 = A.IterableExtension_search(node.clauses, new A.StatementSearchVisitor_visitIfRule_closure(this));
+      return t1 == null ? A.NullableExtension_andThen(node.lastClause, new A.StatementSearchVisitor_visitIfRule_closure0(this)) : t1;
+    },
+    visitImportRule$1(node) {
+      return null;
+    },
+    visitIncludeRule$1(node) {
+      return A.NullableExtension_andThen(node.content, this.get$visitContentBlock());
+    },
+    visitLoudComment$1(node) {
+      return null;
+    },
+    visitMediaRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitMixinRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitReturnRule$1(node) {
+      return null;
+    },
+    visitSilentComment$1(node) {
+      return null;
+    },
+    visitStyleRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitStylesheet$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitSupportsRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitUseRule$1(node) {
+      return null;
+    },
+    visitVariableDeclaration$1(node) {
+      return null;
+    },
+    visitWarnRule$1(node) {
+      return null;
+    },
+    visitWhileRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitChildren$1(children) {
+      return A.IterableExtension_search(children, new A.StatementSearchVisitor_visitChildren_closure(this));
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule_closure.prototype = {
+    call$1(clause) {
+      return A.IterableExtension_search(clause.children, new A.StatementSearchVisitor_visitIfRule__closure0(this.$this));
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor.T?(IfClause)");
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule__closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor.T?(Statement)");
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule_closure0.prototype = {
+    call$1(lastClause) {
+      return A.IterableExtension_search(lastClause.children, new A.StatementSearchVisitor_visitIfRule__closure(this.$this));
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor.T?(ElseClause)");
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule__closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor.T?(Statement)");
+    }
+  };
+  A.StatementSearchVisitor_visitChildren_closure.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor.T?(Statement)");
+    }
+  };
+  A.Entry.prototype = {
+    compareTo$1(_, other) {
+      var t1, t2,
+        res = this.target.compareTo$1(0, other.target);
+      if (res !== 0)
+        return res;
+      t1 = this.source;
+      t2 = other.source;
+      res = B.JSString_methods.compareTo$1(J.toString$0$(t1.file.url), J.toString$0$(t2.file.url));
+      if (res !== 0)
+        return res;
+      return t1.compareTo$1(0, t2);
+    },
+    $isComparable: 1
+  };
+  A.Mapping.prototype = {};
+  A.SingleMapping.prototype = {
+    toJson$1$includeSourceContents(includeSourceContents) {
+      var t1, t2, line, column, srcLine, srcColumn, srcUrlId, srcNameId, first, _i, entry, nextLine, i, t3, t4, column0, t5, newUrlId, srcLine0, srcColumn0, srcNameId0, result, _this = this,
+        buff = new A.StringBuffer("");
+      for (t1 = _this.lines, t2 = t1.length, line = 0, column = 0, srcLine = 0, srcColumn = 0, srcUrlId = 0, srcNameId = 0, first = true, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        entry = t1[_i];
+        nextLine = entry.line;
+        if (nextLine > line) {
+          for (i = line; i < nextLine; ++i)
+            buff._contents += ";";
+          line = nextLine;
+          column = 0;
+          first = true;
+        }
+        for (t3 = J.get$iterator$ax(entry.entries); t3.moveNext$0(); column = column0, first = false) {
+          t4 = t3.get$current(t3);
+          if (!first)
+            buff._contents += ",";
+          column0 = t4.column;
+          t5 = A.encodeVlq(column0 - column);
+          t5 = A.StringBuffer__writeAll(buff._contents, t5, "");
+          buff._contents = t5;
+          newUrlId = t4.sourceUrlId;
+          t5 = A.StringBuffer__writeAll(t5, A.encodeVlq(newUrlId - srcUrlId), "");
+          buff._contents = t5;
+          srcLine0 = t4.sourceLine;
+          t5 = A.StringBuffer__writeAll(t5, A.encodeVlq(srcLine0 - srcLine), "");
+          buff._contents = t5;
+          srcColumn0 = t4.sourceColumn;
+          t5 = A.StringBuffer__writeAll(t5, A.encodeVlq(srcColumn0 - srcColumn), "");
+          buff._contents = t5;
+          srcNameId0 = t4.sourceNameId;
+          if (srcNameId0 == null) {
+            srcUrlId = newUrlId;
+            srcColumn = srcColumn0;
+            srcLine = srcLine0;
+            continue;
+          }
+          buff._contents = A.StringBuffer__writeAll(t5, A.encodeVlq(srcNameId0 - srcNameId), "");
+          srcNameId = srcNameId0;
+          srcUrlId = newUrlId;
+          srcColumn = srcColumn0;
+          srcLine = srcLine0;
+        }
+      }
+      t1 = _this.sourceRoot;
+      if (t1 == null)
+        t1 = "";
+      t2 = buff._contents;
+      result = A.LinkedHashMap_LinkedHashMap$_literal(["version", 3, "sourceRoot", t1, "sources", _this.urls, "names", _this.names, "mappings", t2.charCodeAt(0) == 0 ? t2 : t2], type$.String, type$.dynamic);
+      t1 = _this.targetUrl;
+      if (t1 != null)
+        result.$indexSet(0, "file", t1);
+      if (includeSourceContents) {
+        t1 = _this.files;
+        t2 = A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String?>");
+        result.$indexSet(0, "sourcesContent", A.List_List$of(new A.MappedListIterable(t1, new A.SingleMapping_toJson_closure(), t2), true, t2._eval$1("ListIterable.E")));
+      }
+      _this.extensions.forEach$1(0, new A.SingleMapping_toJson_closure0(result));
+      return result;
+    },
+    toJson$0() {
+      return this.toJson$1$includeSourceContents(false);
+    },
+    toString$0(_) {
+      var _this = this,
+        t1 = A.getRuntimeTypeOfDartObject(_this).toString$0(0) + " : [" + "targetUrl: " + A.S(_this.targetUrl) + ", sourceRoot: " + A.S(_this.sourceRoot) + ", urls: " + A.S(_this.urls) + ", names: " + A.S(_this.names) + ", lines: " + A.S(_this.lines) + "]";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A.SingleMapping_SingleMapping$fromEntries_closure.prototype = {
+    call$0() {
+      return this.urls.__js_helper$_length;
+    },
+    $signature: 10
+  };
+  A.SingleMapping_SingleMapping$fromEntries_closure0.prototype = {
+    call$0() {
+      return this.sourceEntry.source.file;
+    },
+    $signature: 274
+  };
+  A.SingleMapping_SingleMapping$fromEntries_closure1.prototype = {
+    call$1(i) {
+      return this.files.$index(0, i);
+    },
+    $signature: 275
+  };
+  A.SingleMapping_toJson_closure.prototype = {
+    call$1(file) {
+      return file == null ? null : A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(file._decodedChars, 0, null), 0, null);
+    },
+    $signature: 276
+  };
+  A.SingleMapping_toJson_closure0.prototype = {
+    call$2($name, value) {
+      this.result.$indexSet(0, $name, value);
+      return value;
+    },
+    $signature: 113
+  };
+  A.TargetLineEntry.prototype = {
+    toString$0(_) {
+      return A.getRuntimeTypeOfDartObject(this).toString$0(0) + ": " + this.line + " " + A.S(this.entries);
+    }
+  };
+  A.TargetEntry.prototype = {
+    toString$0(_) {
+      var _this = this;
+      return A.getRuntimeTypeOfDartObject(_this).toString$0(0) + ": (" + _this.column + ", " + _this.sourceUrlId + ", " + _this.sourceLine + ", " + _this.sourceColumn + ", " + A.S(_this.sourceNameId) + ")";
+    }
+  };
+  A.SourceFile.prototype = {
+    get$length(_) {
+      return this._decodedChars.length;
+    },
+    get$lines() {
+      return this._lineStarts.length;
+    },
+    SourceFile$decoded$2$url(decodedChars, url) {
+      var t1, t2, t3, i, c, j;
+      for (t1 = this._decodedChars, t2 = t1.length, t3 = this._lineStarts, i = 0; i < t2; ++i) {
+        c = t1[i];
+        if (c === 13) {
+          j = i + 1;
+          if (j >= t2 || t1[j] !== 10)
+            c = 10;
+        }
+        if (c === 10)
+          t3.push(i + 1);
+      }
+    },
+    span$2(_, start, end) {
+      return A._FileSpan$(this, start, end == null ? this._decodedChars.length : end);
+    },
+    span$1(_, start) {
+      return this.span$2(0, start, null);
+    },
+    getLine$1(offset) {
+      var t1, _this = this;
+      if (offset < 0)
+        throw A.wrapException(A.RangeError$("Offset may not be negative, was " + offset + "."));
+      else if (offset > _this._decodedChars.length)
+        throw A.wrapException(A.RangeError$("Offset " + offset + string$.x20must_n + _this.get$length(0) + "."));
+      t1 = _this._lineStarts;
+      if (offset < B.JSArray_methods.get$first(t1))
+        return -1;
+      if (offset >= B.JSArray_methods.get$last(t1))
+        return t1.length - 1;
+      if (_this._isNearCachedLine$1(offset)) {
+        t1 = _this._cachedLine;
+        t1.toString;
+        return t1;
+      }
+      return _this._cachedLine = _this._binarySearch$1(offset) - 1;
+    },
+    _isNearCachedLine$1(offset) {
+      var t2, t3,
+        t1 = this._cachedLine;
+      if (t1 == null)
+        return false;
+      t2 = this._lineStarts;
+      if (offset < t2[t1])
+        return false;
+      t3 = t2.length;
+      if (t1 >= t3 - 1 || offset < t2[t1 + 1])
+        return true;
+      if (t1 >= t3 - 2 || offset < t2[t1 + 2]) {
+        this._cachedLine = t1 + 1;
+        return true;
+      }
+      return false;
+    },
+    _binarySearch$1(offset) {
+      var min, half,
+        t1 = this._lineStarts,
+        max = t1.length - 1;
+      for (min = 0; min < max;) {
+        half = min + B.JSInt_methods._tdivFast$1(max - min, 2);
+        if (t1[half] > offset)
+          max = half;
+        else
+          min = half + 1;
+      }
+      return max;
+    },
+    getColumn$1(offset) {
+      var line, lineStart, _this = this;
+      if (offset < 0)
+        throw A.wrapException(A.RangeError$("Offset may not be negative, was " + offset + "."));
+      else if (offset > _this._decodedChars.length)
+        throw A.wrapException(A.RangeError$("Offset " + offset + " must be not be greater than the number of characters in the file, " + _this.get$length(0) + "."));
+      line = _this.getLine$1(offset);
+      lineStart = _this._lineStarts[line];
+      if (lineStart > offset)
+        throw A.wrapException(A.RangeError$("Line " + line + " comes after offset " + offset + "."));
+      return offset - lineStart;
+    },
+    getOffset$1(line) {
+      var t1, t2, result, t3;
+      if (line < 0)
+        throw A.wrapException(A.RangeError$("Line may not be negative, was " + line + "."));
+      else {
+        t1 = this._lineStarts;
+        t2 = t1.length;
+        if (line >= t2)
+          throw A.wrapException(A.RangeError$("Line " + line + " must be less than the number of lines in the file, " + this.get$lines() + "."));
+      }
+      result = t1[line];
+      if (result <= this._decodedChars.length) {
+        t3 = line + 1;
+        t1 = t3 < t2 && result >= t1[t3];
+      } else
+        t1 = true;
+      if (t1)
+        throw A.wrapException(A.RangeError$("Line " + line + " doesn't have 0 columns."));
+      return result;
+    }
+  };
+  A.FileLocation.prototype = {
+    get$sourceUrl(_) {
+      return this.file.url;
+    },
+    get$line() {
+      return this.file.getLine$1(this.offset);
+    },
+    get$column() {
+      return this.file.getColumn$1(this.offset);
+    },
+    FileLocation$_$2(file, offset) {
+      var t2,
+        t1 = this.offset;
+      if (t1 < 0)
+        throw A.wrapException(A.RangeError$("Offset may not be negative, was " + t1 + "."));
+      else {
+        t2 = this.file;
+        if (t1 > t2._decodedChars.length)
+          throw A.wrapException(A.RangeError$("Offset " + t1 + string$.x20must_n + t2.get$length(0) + "."));
+      }
+    },
+    pointSpan$0() {
+      var t1 = this.offset;
+      return A._FileSpan$(this.file, t1, t1);
+    },
+    get$offset() {
+      return this.offset;
+    }
+  };
+  A._FileSpan.prototype = {
+    get$sourceUrl(_) {
+      return this.file.url;
+    },
+    get$length(_) {
+      return this._end - this._file$_start;
+    },
+    get$start(_) {
+      return A.FileLocation$_(this.file, this._file$_start);
+    },
+    get$end(_) {
+      return A.FileLocation$_(this.file, this._end);
+    },
+    get$text() {
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(this.file._decodedChars, this._file$_start, this._end), 0, null);
+    },
+    get$context(_) {
+      var _this = this,
+        t1 = _this.file,
+        endOffset = _this._end,
+        endLine = t1.getLine$1(endOffset);
+      if (t1.getColumn$1(endOffset) === 0 && endLine !== 0) {
+        if (endOffset - _this._file$_start === 0)
+          return endLine === t1._lineStarts.length - 1 ? "" : A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1._decodedChars, t1.getOffset$1(endLine), t1.getOffset$1(endLine + 1)), 0, null);
+      } else
+        endOffset = endLine === t1._lineStarts.length - 1 ? t1._decodedChars.length : t1.getOffset$1(endLine + 1);
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1._decodedChars, t1.getOffset$1(t1.getLine$1(_this._file$_start)), endOffset), 0, null);
+    },
+    _FileSpan$3(file, _start, _end) {
+      var t3,
+        t1 = this._end,
+        t2 = this._file$_start;
+      if (t1 < t2)
+        throw A.wrapException(A.ArgumentError$("End " + t1 + " must come after start " + t2 + ".", null));
+      else {
+        t3 = this.file;
+        if (t1 > t3._decodedChars.length)
+          throw A.wrapException(A.RangeError$("End " + t1 + string$.x20must_n + t3.get$length(0) + "."));
+        else if (t2 < 0)
+          throw A.wrapException(A.RangeError$("Start may not be negative, was " + t2 + "."));
+      }
+    },
+    compareTo$1(_, other) {
+      var result;
+      if (!(other instanceof A._FileSpan))
+        return this.super$SourceSpanMixin$compareTo(0, other);
+      result = B.JSInt_methods.compareTo$1(this._file$_start, other._file$_start);
+      return result === 0 ? B.JSInt_methods.compareTo$1(this._end, other._end) : result;
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      if (!type$.FileSpan._is(other))
+        return _this.super$SourceSpanMixin$$eq(0, other);
+      if (!(other instanceof A._FileSpan))
+        return _this.super$SourceSpanMixin$$eq(0, other) && J.$eq$(_this.file.url, other.get$sourceUrl(other));
+      return _this._file$_start === other._file$_start && _this._end === other._end && J.$eq$(_this.file.url, other.file.url);
+    },
+    get$hashCode(_) {
+      return A.Object_hash(this._file$_start, this._end, this.file.url, B.C_SentinelValue);
+    },
+    expand$1(_, other) {
+      var t2, t3, _this = this,
+        t1 = _this.file;
+      if (!J.$eq$(t1.url, other.get$sourceUrl(other)))
+        throw A.wrapException(A.ArgumentError$('Source URLs "' + A.S(_this.get$sourceUrl(0)) + '" and  "' + A.S(other.get$sourceUrl(other)) + "\" don't match.", null));
+      t2 = _this._file$_start;
+      t3 = _this._end;
+      if (other instanceof A._FileSpan)
+        return A._FileSpan$(t1, Math.min(t2, other._file$_start), Math.max(t3, other._end));
+      else
+        return A._FileSpan$(t1, Math.min(t2, other.get$start(other).offset), Math.max(t3, other.get$end(other).offset));
+    },
+    $isFileSpan: 1,
+    $isSourceSpanWithContext: 1,
+    get$file(receiver) {
+      return this.file;
+    }
+  };
+  A.Highlighter.prototype = {
+    highlight$0() {
+      var t2, highlightsByColumn, t3, t4, i, line, lastLine, t5, t6, t7, t8, t9, t10, t11, index, primaryIdx, primary, _i, highlight, _this = this, _null = null,
+        t1 = _this._lines;
+      _this._writeFileStart$1(B.JSArray_methods.get$first(t1).url);
+      t2 = _this._maxMultilineSpans;
+      highlightsByColumn = A.List_List$filled(t2, _null, false, type$.nullable__Highlight);
+      for (t3 = _this._highlighter$_buffer, t2 = t2 !== 0, t4 = _this._primaryColor, i = 0; i < t1.length; ++i) {
+        line = t1[i];
+        if (i > 0) {
+          lastLine = t1[i - 1];
+          t5 = lastLine.url;
+          t6 = line.url;
+          if (!J.$eq$(t5, t6)) {
+            _this._writeSidebar$1$end($._glyphs.get$upEnd());
+            t3._contents += "\n";
+            _this._writeFileStart$1(t6);
+          } else if (lastLine.number + 1 !== line.number) {
+            _this._writeSidebar$1$text("...");
+            t3._contents += "\n";
+          }
+        }
+        for (t5 = line.highlights, t6 = A._arrayInstanceType(t5)._eval$1("ReversedListIterable<1>"), t7 = new A.ReversedListIterable(t5, t6), t7 = new A.ListIterator(t7, t7.get$length(0), t6._eval$1("ListIterator<ListIterable.E>")), t6 = t6._eval$1("ListIterable.E"), t8 = line.number, t9 = line.text; t7.moveNext$0();) {
+          t10 = t7.__internal$_current;
+          if (t10 == null)
+            t10 = t6._as(t10);
+          t11 = t10.span;
+          if (t11.get$start(t11).get$line() !== t11.get$end(t11).get$line() && t11.get$start(t11).get$line() === t8 && _this._isOnlyWhitespace$1(B.JSString_methods.substring$2(t9, 0, t11.get$start(t11).get$column()))) {
+            index = B.JSArray_methods.indexOf$1(highlightsByColumn, _null);
+            if (index < 0)
+              A.throwExpression(A.ArgumentError$(A.S(highlightsByColumn) + " contains no null elements.", _null));
+            highlightsByColumn[index] = t10;
+          }
+        }
+        _this._writeSidebar$1$line(t8);
+        t3._contents += " ";
+        _this._writeMultilineHighlights$2(line, highlightsByColumn);
+        if (t2)
+          t3._contents += " ";
+        primaryIdx = B.JSArray_methods.indexWhere$1(t5, new A.Highlighter_highlight_closure());
+        primary = primaryIdx === -1 ? _null : t5[primaryIdx];
+        t6 = primary != null;
+        if (t6) {
+          t7 = primary.span;
+          t10 = t7.get$start(t7).get$line() === t8 ? t7.get$start(t7).get$column() : 0;
+          _this._writeHighlightedText$4$color(t9, t10, t7.get$end(t7).get$line() === t8 ? t7.get$end(t7).get$column() : t9.length, t4);
+        } else
+          _this._writeText$1(t9);
+        t3._contents += "\n";
+        if (t6)
+          _this._writeIndicator$3(line, primary, highlightsByColumn);
+        for (t6 = t5.length, _i = 0; _i < t5.length; t5.length === t6 || (0, A.throwConcurrentModificationError)(t5), ++_i) {
+          highlight = t5[_i];
+          if (highlight.isPrimary)
+            continue;
+          _this._writeIndicator$3(line, highlight, highlightsByColumn);
+        }
+      }
+      _this._writeSidebar$1$end($._glyphs.get$upEnd());
+      t1 = t3._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _writeFileStart$1(url) {
+      var _this = this,
+        t1 = !_this._multipleFiles || !type$.Uri._is(url),
+        t2 = $._glyphs;
+      if (t1)
+        _this._writeSidebar$1$end(t2.get$downEnd());
+      else {
+        _this._writeSidebar$1$end(t2.get$topLeftCorner());
+        _this._colorize$2$color(new A.Highlighter__writeFileStart_closure(_this), "\x1b[34m");
+        t1 = _this._highlighter$_buffer;
+        t2 = " " + $.$get$context().prettyUri$1(url);
+        t1._contents += t2;
+      }
+      _this._highlighter$_buffer._contents += "\n";
+    },
+    _writeMultilineHighlights$3$current(line, highlightsByColumn, current) {
+      var t1, currentColor, t2, t3, t4, t5, foundCurrent, _i, highlight, t6, startLine, t7, endLine, _this = this, _box_0 = {};
+      _box_0.openedOnThisLine = false;
+      _box_0.openedOnThisLineColor = null;
+      t1 = current == null;
+      if (t1)
+        currentColor = null;
+      else
+        currentColor = current.isPrimary ? _this._primaryColor : _this._secondaryColor;
+      for (t2 = highlightsByColumn.length, t3 = _this._secondaryColor, t1 = !t1, t4 = _this._primaryColor, t5 = _this._highlighter$_buffer, foundCurrent = false, _i = 0; _i < t2; ++_i) {
+        highlight = highlightsByColumn[_i];
+        t6 = highlight == null;
+        if (t6)
+          startLine = null;
+        else {
+          t7 = highlight.span;
+          startLine = t7.get$start(t7).get$line();
+        }
+        if (t6)
+          endLine = null;
+        else {
+          t7 = highlight.span;
+          endLine = t7.get$end(t7).get$line();
+        }
+        if (t1 && highlight === current) {
+          _this._colorize$2$color(new A.Highlighter__writeMultilineHighlights_closure(_this, startLine, line), currentColor);
+          foundCurrent = true;
+        } else if (foundCurrent)
+          _this._colorize$2$color(new A.Highlighter__writeMultilineHighlights_closure0(_this, highlight), currentColor);
+        else if (t6)
+          if (_box_0.openedOnThisLine)
+            _this._colorize$2$color(new A.Highlighter__writeMultilineHighlights_closure1(_this), _box_0.openedOnThisLineColor);
+          else
+            t5._contents += " ";
+        else {
+          t6 = highlight.isPrimary ? t4 : t3;
+          _this._colorize$2$color(new A.Highlighter__writeMultilineHighlights_closure2(_box_0, _this, current, startLine, line, highlight, endLine), t6);
+        }
+      }
+    },
+    _writeMultilineHighlights$2(line, highlightsByColumn) {
+      return this._writeMultilineHighlights$3$current(line, highlightsByColumn, null);
+    },
+    _writeHighlightedText$4$color(text, startColumn, endColumn, color) {
+      var _this = this;
+      _this._writeText$1(B.JSString_methods.substring$2(text, 0, startColumn));
+      _this._colorize$2$color(new A.Highlighter__writeHighlightedText_closure(_this, text, startColumn, endColumn), color);
+      _this._writeText$1(B.JSString_methods.substring$2(text, endColumn, text.length));
+    },
+    _writeIndicator$3(line, highlight, highlightsByColumn) {
+      var t2, coversWholeLine, _this = this,
+        color = highlight.isPrimary ? _this._primaryColor : _this._secondaryColor,
+        t1 = highlight.span;
+      if (t1.get$start(t1).get$line() === t1.get$end(t1).get$line()) {
+        _this._writeSidebar$0();
+        t1 = _this._highlighter$_buffer;
+        t1._contents += " ";
+        _this._writeMultilineHighlights$3$current(line, highlightsByColumn, highlight);
+        if (highlightsByColumn.length !== 0)
+          t1._contents += " ";
+        _this._writeLabel$3(highlight, highlightsByColumn, _this._colorize$2$color(new A.Highlighter__writeIndicator_closure(_this, line, highlight), color));
+      } else {
+        t2 = line.number;
+        if (t1.get$start(t1).get$line() === t2) {
+          if (B.JSArray_methods.contains$1(highlightsByColumn, highlight))
+            return;
+          A.replaceFirstNull(highlightsByColumn, highlight);
+          _this._writeSidebar$0();
+          t1 = _this._highlighter$_buffer;
+          t1._contents += " ";
+          _this._writeMultilineHighlights$3$current(line, highlightsByColumn, highlight);
+          _this._colorize$2$color(new A.Highlighter__writeIndicator_closure0(_this, line, highlight), color);
+          t1._contents += "\n";
+        } else if (t1.get$end(t1).get$line() === t2) {
+          coversWholeLine = t1.get$end(t1).get$column() === line.text.length;
+          if (coversWholeLine && highlight.label == null) {
+            A.replaceWithNull(highlightsByColumn, highlight);
+            return;
+          }
+          _this._writeSidebar$0();
+          _this._highlighter$_buffer._contents += " ";
+          _this._writeMultilineHighlights$3$current(line, highlightsByColumn, highlight);
+          _this._writeLabel$3(highlight, highlightsByColumn, _this._colorize$2$color(new A.Highlighter__writeIndicator_closure1(_this, coversWholeLine, line, highlight), color));
+          A.replaceWithNull(highlightsByColumn, highlight);
+        }
+      }
+    },
+    _writeArrow$3$beginning(line, column, beginning) {
+      var t2,
+        t1 = beginning ? 0 : 1,
+        tabs = this._countTabs$1(B.JSString_methods.substring$2(line.text, 0, column + t1));
+      t1 = this._highlighter$_buffer;
+      t2 = B.JSString_methods.$mul($._glyphs.get$horizontalLine(), 1 + column + tabs * 3);
+      t2 = t1._contents += t2;
+      t1._contents = t2 + "^";
+    },
+    _writeArrow$2(line, column) {
+      return this._writeArrow$3$beginning(line, column, true);
+    },
+    _writeLabel$3(highlight, highlightsByColumn, underlineLength) {
+      var lines, color, t1, t2, t3, t4, t5, t6, _i, columnHighlight, _this = this,
+        label = highlight.label;
+      if (label == null) {
+        _this._highlighter$_buffer._contents += "\n";
+        return;
+      }
+      lines = A._setArrayType(label.split("\n"), type$.JSArray_String);
+      color = highlight.isPrimary ? _this._primaryColor : _this._secondaryColor;
+      _this._colorize$2$color(new A.Highlighter__writeLabel_closure(_this, lines), color);
+      t1 = _this._highlighter$_buffer;
+      t1._contents += "\n";
+      for (t2 = A.SubListIterable$(lines, 1, null, type$.String), t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListIterable.E>")), t4 = highlightsByColumn.length, t3 = t3._eval$1("ListIterable.E"); t2.moveNext$0();) {
+        t5 = t2.__internal$_current;
+        if (t5 == null)
+          t5 = t3._as(t5);
+        _this._writeSidebar$0();
+        t6 = t1._contents += " ";
+        for (_i = 0; _i < t4; ++_i) {
+          columnHighlight = highlightsByColumn[_i];
+          if (columnHighlight == null || columnHighlight === highlight) {
+            t6 += " ";
+            t1._contents = t6;
+          } else {
+            t6 = $._glyphs.get$verticalLine();
+            t6 = t1._contents += t6;
+          }
+        }
+        t6 = B.JSString_methods.$mul(" ", underlineLength);
+        t1._contents += t6;
+        _this._colorize$2$color(new A.Highlighter__writeLabel_closure0(_this, t5), color);
+        t1._contents += "\n";
+      }
+    },
+    _writeText$1(text) {
+      var t1, t2, t3, t4;
+      for (t1 = new A.CodeUnits(text), t2 = type$.CodeUnits, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this._highlighter$_buffer, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        if (t4 == null)
+          t4 = t2._as(t4);
+        if (t4 === 9) {
+          t4 = B.JSString_methods.$mul(" ", 4);
+          t3._contents += t4;
+        } else {
+          t4 = A.Primitives_stringFromCharCode(t4);
+          t3._contents += t4;
+        }
+      }
+    },
+    _writeSidebar$3$end$line$text(end, line, text) {
+      var t1 = {};
+      t1.text = text;
+      if (line != null)
+        t1.text = B.JSInt_methods.toString$0(line + 1);
+      this._colorize$2$color(new A.Highlighter__writeSidebar_closure(t1, this, end), "\x1b[34m");
+    },
+    _writeSidebar$1$end(end) {
+      return this._writeSidebar$3$end$line$text(end, null, null);
+    },
+    _writeSidebar$1$text(text) {
+      return this._writeSidebar$3$end$line$text(null, null, text);
+    },
+    _writeSidebar$1$line(line) {
+      return this._writeSidebar$3$end$line$text(null, line, null);
+    },
+    _writeSidebar$0() {
+      return this._writeSidebar$3$end$line$text(null, null, null);
+    },
+    _countTabs$1(text) {
+      var t1, t2, count, t3;
+      for (t1 = new A.CodeUnits(text), t2 = type$.CodeUnits, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"), count = 0; t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if ((t3 == null ? t2._as(t3) : t3) === 9)
+          ++count;
+      }
+      return count;
+    },
+    _isOnlyWhitespace$1(text) {
+      var t1, t2, t3;
+      for (t1 = new A.CodeUnits(text), t2 = type$.CodeUnits, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (t3 !== 32 && t3 !== 9)
+          return false;
+      }
+      return true;
+    },
+    _colorize$1$2$color(callback, color) {
+      var result,
+        t1 = this._primaryColor != null;
+      if (t1 && color != null)
+        this._highlighter$_buffer._contents += color;
+      result = callback.call$0();
+      if (t1 && color != null)
+        this._highlighter$_buffer._contents += "\x1b[0m";
+      return result;
+    },
+    _colorize$2$color(callback, color) {
+      return this._colorize$1$2$color(callback, color, type$.dynamic);
+    }
+  };
+  A.Highlighter_closure.prototype = {
+    call$0() {
+      var t1 = this.color,
+        t2 = J.getInterceptor$(t1);
+      if (t2.$eq(t1, true))
+        return "\x1b[31m";
+      if (t2.$eq(t1, false))
+        return null;
+      return A._asStringQ(t1);
+    },
+    $signature: 44
+  };
+  A.Highlighter$__closure.prototype = {
+    call$1(line) {
+      var t1 = line.highlights;
+      return new A.WhereIterable(t1, new A.Highlighter$___closure(), A._arrayInstanceType(t1)._eval$1("WhereIterable<1>")).get$length(0);
+    },
+    $signature: 277
+  };
+  A.Highlighter$___closure.prototype = {
+    call$1(highlight) {
+      var t1 = highlight.span;
+      return t1.get$start(t1).get$line() !== t1.get$end(t1).get$line();
+    },
+    $signature: 115
+  };
+  A.Highlighter$__closure0.prototype = {
+    call$1(line) {
+      return line.url;
+    },
+    $signature: 279
+  };
+  A.Highlighter__collateLines_closure.prototype = {
+    call$1(highlight) {
+      var t1 = highlight.span;
+      t1 = t1.get$sourceUrl(t1);
+      return t1 == null ? new A.Object() : t1;
+    },
+    $signature: 280
+  };
+  A.Highlighter__collateLines_closure0.prototype = {
+    call$2(highlight1, highlight2) {
+      return highlight1.span.compareTo$1(0, highlight2.span);
+    },
+    $signature: 281
+  };
+  A.Highlighter__collateLines_closure1.prototype = {
+    call$1(entry) {
+      var t1, t2, t3, t4, context, t5, linesBeforeSpan, lineNumber, _i, line, activeHighlights, highlightIndex, oldHighlightLength, t6,
+        url = entry.key,
+        highlightsForFile = entry.value,
+        lines = A._setArrayType([], type$.JSArray__Line);
+      for (t1 = J.getInterceptor$ax(highlightsForFile), t2 = t1.get$iterator(highlightsForFile), t3 = type$.JSArray__Highlight; t2.moveNext$0();) {
+        t4 = t2.get$current(t2).span;
+        context = t4.get$context(t4);
+        t5 = A.findLineStart(context, t4.get$text(), t4.get$start(t4).get$column());
+        t5.toString;
+        linesBeforeSpan = B.JSString_methods.allMatches$1("\n", B.JSString_methods.substring$2(context, 0, t5)).get$length(0);
+        lineNumber = t4.get$start(t4).get$line() - linesBeforeSpan;
+        for (t4 = context.split("\n"), t5 = t4.length, _i = 0; _i < t5; ++_i) {
+          line = t4[_i];
+          if (lines.length === 0 || lineNumber > B.JSArray_methods.get$last(lines).number)
+            lines.push(new A._Line(line, lineNumber, url, A._setArrayType([], t3)));
+          ++lineNumber;
+        }
+      }
+      activeHighlights = A._setArrayType([], t3);
+      for (t2 = lines.length, highlightIndex = 0, _i = 0; _i < lines.length; lines.length === t2 || (0, A.throwConcurrentModificationError)(lines), ++_i) {
+        line = lines[_i];
+        if (!!activeHighlights.fixed$length)
+          A.throwExpression(A.UnsupportedError$("removeWhere"));
+        B.JSArray_methods._removeWhere$2(activeHighlights, new A.Highlighter__collateLines__closure(line), true);
+        oldHighlightLength = activeHighlights.length;
+        for (t3 = t1.skip$1(highlightsForFile, highlightIndex), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+          t5 = t3.__internal$_current;
+          if (t5 == null)
+            t5 = t4._as(t5);
+          t6 = t5.span;
+          if (t6.get$start(t6).get$line() > line.number)
+            break;
+          activeHighlights.push(t5);
+        }
+        highlightIndex += activeHighlights.length - oldHighlightLength;
+        B.JSArray_methods.addAll$1(line.highlights, activeHighlights);
+      }
+      return lines;
+    },
+    $signature: 282
+  };
+  A.Highlighter__collateLines__closure.prototype = {
+    call$1(highlight) {
+      var t1 = highlight.span;
+      return t1.get$end(t1).get$line() < this.line.number;
+    },
+    $signature: 115
+  };
+  A.Highlighter_highlight_closure.prototype = {
+    call$1(highlight) {
+      return highlight.isPrimary;
+    },
+    $signature: 115
+  };
+  A.Highlighter__writeFileStart_closure.prototype = {
+    call$0() {
+      var t1 = this.$this._highlighter$_buffer,
+        t2 = B.JSString_methods.$mul($._glyphs.get$horizontalLine(), 2) + ">";
+      t1._contents += t2;
+      return null;
+    },
+    $signature: 0
+  };
+  A.Highlighter__writeMultilineHighlights_closure.prototype = {
+    call$0() {
+      var t1 = this.$this._highlighter$_buffer,
+        t2 = $._glyphs;
+      t2 = this.startLine === this.line.number ? t2.get$topLeftCorner() : t2.get$bottomLeftCorner();
+      t1._contents += t2;
+    },
+    $signature: 1
+  };
+  A.Highlighter__writeMultilineHighlights_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this._highlighter$_buffer,
+        t2 = $._glyphs;
+      t2 = this.highlight == null ? t2.get$horizontalLine() : t2.get$cross();
+      t1._contents += t2;
+    },
+    $signature: 1
+  };
+  A.Highlighter__writeMultilineHighlights_closure1.prototype = {
+    call$0() {
+      var t1 = this.$this._highlighter$_buffer,
+        t2 = $._glyphs.get$horizontalLine();
+      t1._contents += t2;
+      return null;
+    },
+    $signature: 0
+  };
+  A.Highlighter__writeMultilineHighlights_closure2.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this._box_0,
+        t2 = t1.openedOnThisLine,
+        t3 = $._glyphs,
+        vertical = t2 ? t3.get$cross() : t3.get$verticalLine();
+      if (_this.current != null)
+        _this.$this._highlighter$_buffer._contents += vertical;
+      else {
+        t2 = _this.line;
+        t3 = t2.number;
+        if (_this.startLine === t3) {
+          t2 = _this.$this;
+          t2._colorize$2$color(new A.Highlighter__writeMultilineHighlights__closure(t1, t2), t1.openedOnThisLineColor);
+          t1.openedOnThisLine = true;
+          if (t1.openedOnThisLineColor == null)
+            t1.openedOnThisLineColor = _this.highlight.isPrimary ? t2._primaryColor : t2._secondaryColor;
+        } else {
+          if (_this.endLine === t3) {
+            t3 = _this.highlight.span;
+            t2 = t3.get$end(t3).get$column() === t2.text.length;
+          } else
+            t2 = false;
+          t3 = _this.$this;
+          if (t2) {
+            t1 = t3._highlighter$_buffer;
+            t2 = _this.highlight.label == null ? $._glyphs.glyphOrAscii$2("\u2514", "\\") : vertical;
+            t1._contents += t2;
+          } else
+            t3._colorize$2$color(new A.Highlighter__writeMultilineHighlights__closure0(t3, vertical), t1.openedOnThisLineColor);
+        }
+      }
+    },
+    $signature: 1
+  };
+  A.Highlighter__writeMultilineHighlights__closure.prototype = {
+    call$0() {
+      var t1 = this.$this._highlighter$_buffer,
+        t2 = this._box_0.openedOnThisLine ? "\u252c" : "\u250c";
+      t2 = $._glyphs.glyphOrAscii$2(t2, "/");
+      t1._contents += t2;
+    },
+    $signature: 1
+  };
+  A.Highlighter__writeMultilineHighlights__closure0.prototype = {
+    call$0() {
+      this.$this._highlighter$_buffer._contents += this.vertical;
+    },
+    $signature: 1
+  };
+  A.Highlighter__writeHighlightedText_closure.prototype = {
+    call$0() {
+      var _this = this;
+      return _this.$this._writeText$1(B.JSString_methods.substring$2(_this.text, _this.startColumn, _this.endColumn));
+    },
+    $signature: 0
+  };
+  A.Highlighter__writeIndicator_closure.prototype = {
+    call$0() {
+      var startColumn, endColumn, tabsBefore, tabsInside,
+        t1 = this.$this,
+        t2 = t1._highlighter$_buffer,
+        t3 = t2._contents,
+        t4 = this.highlight,
+        t5 = t4.span;
+      t4 = t4.isPrimary ? "^" : $._glyphs.get$horizontalLineBold();
+      startColumn = t5.get$start(t5).get$column();
+      endColumn = t5.get$end(t5).get$column();
+      t5 = this.line.text;
+      tabsBefore = t1._countTabs$1(B.JSString_methods.substring$2(t5, 0, startColumn));
+      tabsInside = t1._countTabs$1(B.JSString_methods.substring$2(t5, startColumn, endColumn));
+      startColumn += tabsBefore * 3;
+      t5 = B.JSString_methods.$mul(" ", startColumn);
+      t2._contents += t5;
+      t4 = B.JSString_methods.$mul(t4, Math.max(endColumn + (tabsBefore + tabsInside) * 3 - startColumn, 1));
+      t4 = t2._contents += t4;
+      return t4.length - t3.length;
+    },
+    $signature: 10
+  };
+  A.Highlighter__writeIndicator_closure0.prototype = {
+    call$0() {
+      var t1 = this.highlight.span;
+      return this.$this._writeArrow$2(this.line, t1.get$start(t1).get$column());
+    },
+    $signature: 0
+  };
+  A.Highlighter__writeIndicator_closure1.prototype = {
+    call$0() {
+      var t4, _this = this,
+        t1 = _this.$this,
+        t2 = t1._highlighter$_buffer,
+        t3 = t2._contents;
+      if (_this.coversWholeLine) {
+        t1 = B.JSString_methods.$mul($._glyphs.get$horizontalLine(), 3);
+        t2._contents += t1;
+      } else {
+        t4 = _this.highlight.span;
+        t1._writeArrow$3$beginning(_this.line, Math.max(t4.get$end(t4).get$column() - 1, 0), false);
+      }
+      return t2._contents.length - t3.length;
+    },
+    $signature: 10
+  };
+  A.Highlighter__writeLabel_closure.prototype = {
+    call$0() {
+      var t1 = this.$this._highlighter$_buffer,
+        t2 = " " + A.S(B.JSArray_methods.get$first(this.lines));
+      t1._contents += t2;
+      return null;
+    },
+    $signature: 0
+  };
+  A.Highlighter__writeLabel_closure0.prototype = {
+    call$0() {
+      this.$this._highlighter$_buffer._contents += " " + this.text;
+      return null;
+    },
+    $signature: 0
+  };
+  A.Highlighter__writeSidebar_closure.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._highlighter$_buffer,
+        t3 = this._box_0.text;
+      if (t3 == null)
+        t3 = "";
+      t1 = B.JSString_methods.padRight$1(t3, t1._paddingBeforeSidebar);
+      t2._contents += t1;
+      t1 = this.end;
+      if (t1 == null)
+        t1 = $._glyphs.get$verticalLine();
+      t2._contents += t1;
+    },
+    $signature: 1
+  };
+  A._Highlight.prototype = {
+    toString$0(_) {
+      var t1 = this.isPrimary ? "" + "primary " : "",
+        t2 = this.span;
+      t2 = t1 + ("" + t2.get$start(t2).get$line() + ":" + t2.get$start(t2).get$column() + "-" + t2.get$end(t2).get$line() + ":" + t2.get$end(t2).get$column());
+      t1 = this.label;
+      t1 = t1 != null ? t2 + (" (" + t1 + ")") : t2;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A._Highlight_closure.prototype = {
+    call$0() {
+      var t2, t3, t4, t5,
+        t1 = this.span;
+      if (!(type$.SourceSpanWithContext._is(t1) && A.findLineStart(t1.get$context(t1), t1.get$text(), t1.get$start(t1).get$column()) != null)) {
+        t2 = A.SourceLocation$(t1.get$start(t1).get$offset(), 0, 0, t1.get$sourceUrl(t1));
+        t3 = t1.get$end(t1).get$offset();
+        t4 = t1.get$sourceUrl(t1);
+        t5 = A.countCodeUnits(t1.get$text(), 10);
+        t1 = A.SourceSpanWithContext$(t2, A.SourceLocation$(t3, A._Highlight__lastLineLength(t1.get$text()), t5, t4), t1.get$text(), t1.get$text());
+      }
+      return A._Highlight__normalizeEndOfLine(A._Highlight__normalizeTrailingNewline(A._Highlight__normalizeNewlines(t1)));
+    },
+    $signature: 283
+  };
+  A._Line.prototype = {
+    toString$0(_) {
+      return "" + this.number + ': "' + this.text + '" (' + B.JSArray_methods.join$1(this.highlights, ", ") + ")";
+    }
+  };
+  A.SourceLocation.prototype = {
+    distance$1(other) {
+      var t1 = this.sourceUrl;
+      if (!J.$eq$(t1, other.get$sourceUrl(other)))
+        throw A.wrapException(A.ArgumentError$('Source URLs "' + A.S(t1) + '" and "' + A.S(other.get$sourceUrl(other)) + "\" don't match.", null));
+      return Math.abs(this.offset - other.get$offset());
+    },
+    compareTo$1(_, other) {
+      var t1 = this.sourceUrl;
+      if (!J.$eq$(t1, other.get$sourceUrl(other)))
+        throw A.wrapException(A.ArgumentError$('Source URLs "' + A.S(t1) + '" and "' + A.S(other.get$sourceUrl(other)) + "\" don't match.", null));
+      return this.offset - other.get$offset();
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return type$.SourceLocation._is(other) && J.$eq$(this.sourceUrl, other.get$sourceUrl(other)) && this.offset === other.get$offset();
+    },
+    get$hashCode(_) {
+      var t1 = this.sourceUrl;
+      t1 = t1 == null ? null : t1.get$hashCode(t1);
+      if (t1 == null)
+        t1 = 0;
+      return t1 + this.offset;
+    },
+    toString$0(_) {
+      var _this = this,
+        t1 = A.getRuntimeTypeOfDartObject(_this).toString$0(0),
+        source = _this.sourceUrl;
+      return "<" + t1 + ": " + _this.offset + " " + (A.S(source == null ? "unknown source" : source) + ":" + (_this.line + 1) + ":" + (_this.column + 1)) + ">";
+    },
+    $isComparable: 1,
+    get$sourceUrl(receiver) {
+      return this.sourceUrl;
+    },
+    get$offset() {
+      return this.offset;
+    },
+    get$line() {
+      return this.line;
+    },
+    get$column() {
+      return this.column;
+    }
+  };
+  A.SourceLocationMixin.prototype = {
+    distance$1(other) {
+      if (!J.$eq$(this.file.url, other.get$sourceUrl(other)))
+        throw A.wrapException(A.ArgumentError$('Source URLs "' + A.S(this.get$sourceUrl(0)) + '" and "' + A.S(other.get$sourceUrl(other)) + "\" don't match.", null));
+      return Math.abs(this.offset - other.get$offset());
+    },
+    compareTo$1(_, other) {
+      if (!J.$eq$(this.file.url, other.get$sourceUrl(other)))
+        throw A.wrapException(A.ArgumentError$('Source URLs "' + A.S(this.get$sourceUrl(0)) + '" and "' + A.S(other.get$sourceUrl(other)) + "\" don't match.", null));
+      return this.offset - other.get$offset();
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return type$.SourceLocation._is(other) && J.$eq$(this.file.url, other.get$sourceUrl(other)) && this.offset === other.get$offset();
+    },
+    get$hashCode(_) {
+      var t1 = this.file.url;
+      t1 = t1 == null ? null : t1.get$hashCode(t1);
+      if (t1 == null)
+        t1 = 0;
+      return t1 + this.offset;
+    },
+    toString$0(_) {
+      var t1 = A.getRuntimeTypeOfDartObject(this).toString$0(0),
+        t2 = this.offset,
+        t3 = this.file,
+        source = t3.url;
+      return "<" + t1 + ": " + t2 + " " + (A.S(source == null ? "unknown source" : source) + ":" + (t3.getLine$1(t2) + 1) + ":" + (t3.getColumn$1(t2) + 1)) + ">";
+    },
+    $isComparable: 1,
+    $isSourceLocation: 1
+  };
+  A.SourceSpanBase.prototype = {
+    SourceSpanBase$3(start, end, text) {
+      var t3,
+        t1 = this.end,
+        t2 = this.start;
+      if (!J.$eq$(t1.get$sourceUrl(t1), t2.get$sourceUrl(t2)))
+        throw A.wrapException(A.ArgumentError$('Source URLs "' + A.S(t2.get$sourceUrl(t2)) + '" and  "' + A.S(t1.get$sourceUrl(t1)) + "\" don't match.", null));
+      else if (t1.get$offset() < t2.get$offset())
+        throw A.wrapException(A.ArgumentError$("End " + t1.toString$0(0) + " must come after start " + t2.toString$0(0) + ".", null));
+      else {
+        t3 = this.text;
+        if (t3.length !== t2.distance$1(t1))
+          throw A.wrapException(A.ArgumentError$('Text "' + t3 + '" must be ' + t2.distance$1(t1) + " characters long.", null));
+      }
+    },
+    get$start(receiver) {
+      return this.start;
+    },
+    get$end(receiver) {
+      return this.end;
+    },
+    get$text() {
+      return this.text;
+    }
+  };
+  A.SourceSpanException.prototype = {
+    get$message(_) {
+      return this._span_exception$_message;
+    },
+    get$span(_) {
+      return this._span;
+    },
+    toString$1$color(_, color) {
+      var _this = this;
+      _this.get$span(_this);
+      return "Error on " + _this.get$span(_this).message$2$color(0, _this._span_exception$_message, color);
+    },
+    toString$0(_) {
+      return this.toString$1$color(0, null);
+    },
+    $isException: 1
+  };
+  A.SourceSpanFormatException.prototype = {$isFormatException: 1,
+    get$source() {
+      return this.source;
+    }
+  };
+  A.MultiSourceSpanException.prototype = {
+    toString$0(_) {
+      var _this = this;
+      return "Error on " + A.SourceSpanExtension_messageMultiple(_this._span, _this._span_exception$_message, _this.primaryLabel, _this.secondarySpans, false, null, null);
+    },
+    get$primaryLabel() {
+      return this.primaryLabel;
+    },
+    get$secondarySpans() {
+      return this.secondarySpans;
+    }
+  };
+  A.MultiSourceSpanFormatException.prototype = {$isFormatException: 1};
+  A.SourceSpanMixin.prototype = {
+    get$sourceUrl(_) {
+      var t1 = this.get$start(this);
+      return t1.get$sourceUrl(t1);
+    },
+    get$length(_) {
+      var _this = this;
+      return _this.get$end(_this).get$offset() - _this.get$start(_this).get$offset();
+    },
+    compareTo$1(_, other) {
+      var _this = this,
+        result = _this.get$start(_this).compareTo$1(0, other.get$start(other));
+      return result === 0 ? _this.get$end(_this).compareTo$1(0, other.get$end(other)) : result;
+    },
+    message$2$color(_, message, color) {
+      var t2, t3, highlight, _this = this,
+        t1 = "" + ("line " + (_this.get$start(_this).get$line() + 1) + ", column " + (_this.get$start(_this).get$column() + 1));
+      if (_this.get$sourceUrl(_this) != null) {
+        t2 = _this.get$sourceUrl(_this);
+        t3 = $.$get$context();
+        t2.toString;
+        t2 = t1 + (" of " + t3.prettyUri$1(t2));
+        t1 = t2;
+      }
+      t1 += ": " + message;
+      highlight = _this.highlight$1$color(color);
+      if (highlight.length !== 0)
+        t1 = t1 + "\n" + highlight;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    message$1(_, message) {
+      return this.message$2$color(0, message, null);
+    },
+    highlight$1$color(color) {
+      var _this = this;
+      if (!type$.SourceSpanWithContext._is(_this) && _this.get$length(_this) === 0)
+        return "";
+      return A.Highlighter$(_this, color).highlight$0();
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return type$.SourceSpan._is(other) && _this.get$start(_this).$eq(0, other.get$start(other)) && _this.get$end(_this).$eq(0, other.get$end(other));
+    },
+    get$hashCode(_) {
+      var _this = this;
+      return A.Object_hash(_this.get$start(_this), _this.get$end(_this), B.C_SentinelValue, B.C_SentinelValue);
+    },
+    toString$0(_) {
+      var _this = this;
+      return "<" + A.getRuntimeTypeOfDartObject(_this).toString$0(0) + ": from " + _this.get$start(_this).toString$0(0) + " to " + _this.get$end(_this).toString$0(0) + ' "' + _this.get$text() + '">';
+    },
+    $isComparable: 1,
+    $isSourceSpan: 1
+  };
+  A.SourceSpanWithContext.prototype = {
+    get$context(_) {
+      return this._context;
+    }
+  };
+  A.Chain.prototype = {
+    toTrace$0() {
+      var t1 = this.traces;
+      return A.Trace$(new A.ExpandIterable(t1, new A.Chain_toTrace_closure(), A._arrayInstanceType(t1)._eval$1("ExpandIterable<1,Frame>")), null);
+    },
+    toString$0(_) {
+      var t1 = this.traces,
+        t2 = A._arrayInstanceType(t1);
+      return new A.MappedListIterable(t1, new A.Chain_toString_closure(new A.MappedListIterable(t1, new A.Chain_toString_closure0(), t2._eval$1("MappedListIterable<1,int>")).fold$2(0, 0, B.CONSTANT)), t2._eval$1("MappedListIterable<1,String>")).join$1(0, string$.x3d_____);
+    },
+    $isStackTrace: 1
+  };
+  A.Chain_Chain$parse_closure.prototype = {
+    call$1(line) {
+      return line.length !== 0;
+    },
+    $signature: 4
+  };
+  A.Chain_toTrace_closure.prototype = {
+    call$1(trace) {
+      return trace.get$frames();
+    },
+    $signature: 284
+  };
+  A.Chain_toString_closure0.prototype = {
+    call$1(trace) {
+      var t1 = trace.get$frames();
+      return new A.MappedListIterable(t1, new A.Chain_toString__closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,int>")).fold$2(0, 0, B.CONSTANT);
+    },
+    $signature: 285
+  };
+  A.Chain_toString__closure0.prototype = {
+    call$1(frame) {
+      return frame.get$location().length;
+    },
+    $signature: 264
+  };
+  A.Chain_toString_closure.prototype = {
+    call$1(trace) {
+      var t1 = trace.get$frames();
+      return new A.MappedListIterable(t1, new A.Chain_toString__closure(this.longest), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$0(0);
+    },
+    $signature: 287
+  };
+  A.Chain_toString__closure.prototype = {
+    call$1(frame) {
+      return B.JSString_methods.padRight$1(frame.get$location(), this.longest) + "  " + A.S(frame.get$member()) + "\n";
+    },
+    $signature: 263
+  };
+  A.Frame.prototype = {
+    get$isCore() {
+      return this.uri.get$scheme() === "dart";
+    },
+    get$library() {
+      var t1 = this.uri;
+      if (t1.get$scheme() === "data")
+        return "data:...";
+      return $.$get$context().prettyUri$1(t1);
+    },
+    get$$package() {
+      var t1 = this.uri;
+      if (t1.get$scheme() !== "package")
+        return null;
+      return B.JSArray_methods.get$first(t1.get$path(t1).split("/"));
+    },
+    get$location() {
+      var t2, _this = this,
+        t1 = _this.line;
+      if (t1 == null)
+        return _this.get$library();
+      t2 = _this.column;
+      if (t2 == null)
+        return _this.get$library() + " " + A.S(t1);
+      return _this.get$library() + " " + A.S(t1) + ":" + A.S(t2);
+    },
+    toString$0(_) {
+      return this.get$location() + " in " + A.S(this.member);
+    },
+    get$uri() {
+      return this.uri;
+    },
+    get$line() {
+      return this.line;
+    },
+    get$column() {
+      return this.column;
+    },
+    get$member() {
+      return this.member;
+    }
+  };
+  A.Frame_Frame$parseVM_closure.prototype = {
+    call$0() {
+      var match, t2, t3, member, uri, lineAndColumn, line, _null = null,
+        t1 = this.frame;
+      if (t1 === "...")
+        return new A.Frame(A._Uri__Uri(_null, _null, _null, _null), _null, _null, "...");
+      match = $.$get$_vmFrame().firstMatch$1(t1);
+      if (match == null)
+        return new A.UnparsedFrame(A._Uri__Uri(_null, "unparsed", _null, _null), t1);
+      t1 = match._match;
+      t2 = t1[1];
+      t2.toString;
+      t3 = $.$get$_asyncBody();
+      t2 = A.stringReplaceAllUnchecked(t2, t3, "<async>");
+      member = A.stringReplaceAllUnchecked(t2, "<anonymous closure>", "<fn>");
+      t2 = t1[2];
+      t3 = t2;
+      t3.toString;
+      if (B.JSString_methods.startsWith$1(t3, "<data:"))
+        uri = A.Uri_Uri$dataFromString("", _null, _null);
+      else {
+        t2 = t2;
+        t2.toString;
+        uri = A.Uri_parse(t2);
+      }
+      lineAndColumn = t1[3].split(":");
+      t1 = lineAndColumn.length;
+      line = t1 > 1 ? A.int_parse(lineAndColumn[1], _null) : _null;
+      return new A.Frame(uri, line, t1 > 2 ? A.int_parse(lineAndColumn[2], _null) : _null, member);
+    },
+    $signature: 71
+  };
+  A.Frame_Frame$parseV8_closure.prototype = {
+    call$0() {
+      var t2, t3, _s4_ = "<fn>",
+        t1 = this.frame,
+        match = $.$get$_v8Frame().firstMatch$1(t1);
+      if (match == null)
+        return new A.UnparsedFrame(A._Uri__Uri(null, "unparsed", null, null), t1);
+      t1 = new A.Frame_Frame$parseV8_closure_parseLocation(t1);
+      t2 = match._match;
+      t3 = t2[2];
+      if (t3 != null) {
+        t3 = t3;
+        t3.toString;
+        t2 = t2[1];
+        t2.toString;
+        t2 = A.stringReplaceAllUnchecked(t2, "<anonymous>", _s4_);
+        t2 = A.stringReplaceAllUnchecked(t2, "Anonymous function", _s4_);
+        return t1.call$2(t3, A.stringReplaceAllUnchecked(t2, "(anonymous function)", _s4_));
+      } else {
+        t2 = t2[3];
+        t2.toString;
+        return t1.call$2(t2, _s4_);
+      }
+    },
+    $signature: 71
+  };
+  A.Frame_Frame$parseV8_closure_parseLocation.prototype = {
+    call$2($location, member) {
+      var t2, urlMatch, uri, line, columnMatch, _null = null,
+        t1 = $.$get$_v8EvalLocation(),
+        evalMatch = t1.firstMatch$1($location);
+      for (; evalMatch != null; $location = t2) {
+        t2 = evalMatch._match[1];
+        t2.toString;
+        evalMatch = t1.firstMatch$1(t2);
+      }
+      if ($location === "native")
+        return new A.Frame(A.Uri_parse("native"), _null, _null, member);
+      urlMatch = $.$get$_v8UrlLocation().firstMatch$1($location);
+      if (urlMatch == null)
+        return new A.UnparsedFrame(A._Uri__Uri(_null, "unparsed", _null, _null), this.frame);
+      t1 = urlMatch._match;
+      t2 = t1[1];
+      t2.toString;
+      uri = A.Frame__uriOrPathToUri(t2);
+      t2 = t1[2];
+      t2.toString;
+      line = A.int_parse(t2, _null);
+      columnMatch = t1[3];
+      return new A.Frame(uri, line, columnMatch != null ? A.int_parse(columnMatch, _null) : _null, member);
+    },
+    $signature: 290
+  };
+  A.Frame_Frame$_parseFirefoxEval_closure.prototype = {
+    call$0() {
+      var t2, member, uri, line, _null = null,
+        t1 = this.frame,
+        match = $.$get$_firefoxEvalLocation().firstMatch$1(t1);
+      if (match == null)
+        return new A.UnparsedFrame(A._Uri__Uri(_null, "unparsed", _null, _null), t1);
+      t1 = match._match;
+      t2 = t1[1];
+      t2.toString;
+      member = A.stringReplaceAllUnchecked(t2, "/<", "");
+      t2 = t1[2];
+      t2.toString;
+      uri = A.Frame__uriOrPathToUri(t2);
+      t1 = t1[3];
+      t1.toString;
+      line = A.int_parse(t1, _null);
+      return new A.Frame(uri, line, _null, member.length === 0 || member === "anonymous" ? "<fn>" : member);
+    },
+    $signature: 71
+  };
+  A.Frame_Frame$parseFirefox_closure.prototype = {
+    call$0() {
+      var t2, t3, t4, uri, member, line, column, _null = null,
+        t1 = this.frame,
+        match = $.$get$_firefoxSafariFrame().firstMatch$1(t1);
+      if (match == null)
+        return new A.UnparsedFrame(A._Uri__Uri(_null, "unparsed", _null, _null), t1);
+      t2 = match._match;
+      t3 = t2[3];
+      t4 = t3;
+      t4.toString;
+      if (B.JSString_methods.contains$1(t4, " line "))
+        return A.Frame_Frame$_parseFirefoxEval(t1);
+      t1 = t3;
+      t1.toString;
+      uri = A.Frame__uriOrPathToUri(t1);
+      member = t2[1];
+      if (member != null) {
+        t1 = t2[2];
+        t1.toString;
+        member += B.JSArray_methods.join$0(A.List_List$filled(B.JSString_methods.allMatches$1("/", t1).get$length(0), ".<fn>", false, type$.String));
+        if (member === "")
+          member = "<fn>";
+        member = B.JSString_methods.replaceFirst$2(member, $.$get$_initialDot(), "");
+      } else
+        member = "<fn>";
+      t1 = t2[4];
+      if (t1 === "")
+        line = _null;
+      else {
+        t1 = t1;
+        t1.toString;
+        line = A.int_parse(t1, _null);
+      }
+      t1 = t2[5];
+      if (t1 == null || t1 === "")
+        column = _null;
+      else {
+        t1 = t1;
+        t1.toString;
+        column = A.int_parse(t1, _null);
+      }
+      return new A.Frame(uri, line, column, member);
+    },
+    $signature: 71
+  };
+  A.Frame_Frame$parseFriendly_closure.prototype = {
+    call$0() {
+      var t2, uri, line, column, _null = null,
+        t1 = this.frame,
+        match = $.$get$_friendlyFrame().firstMatch$1(t1);
+      if (match == null)
+        throw A.wrapException(A.FormatException$("Couldn't parse package:stack_trace stack trace line '" + t1 + "'.", _null, _null));
+      t1 = match._match;
+      t2 = t1[1];
+      if (t2 === "data:...")
+        uri = A.Uri_Uri$dataFromString("", _null, _null);
+      else {
+        t2 = t2;
+        t2.toString;
+        uri = A.Uri_parse(t2);
+      }
+      if (uri.get$scheme() === "") {
+        t2 = $.$get$context();
+        uri = t2.toUri$1(A.absolute(t2.style.pathFromUri$1(A._parseUri(uri)), _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null));
+      }
+      t2 = t1[2];
+      if (t2 == null)
+        line = _null;
+      else {
+        t2 = t2;
+        t2.toString;
+        line = A.int_parse(t2, _null);
+      }
+      t2 = t1[3];
+      if (t2 == null)
+        column = _null;
+      else {
+        t2 = t2;
+        t2.toString;
+        column = A.int_parse(t2, _null);
+      }
+      return new A.Frame(uri, line, column, t1[4]);
+    },
+    $signature: 71
+  };
+  A.LazyTrace.prototype = {
+    get$_lazy_trace$_trace() {
+      var result, _this = this,
+        value = _this.__LazyTrace__trace_FI;
+      if (value === $) {
+        result = _this._thunk.call$0();
+        _this.__LazyTrace__trace_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this.__LazyTrace__trace_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$frames() {
+      return this.get$_lazy_trace$_trace().get$frames();
+    },
+    get$terse() {
+      return new A.LazyTrace(new A.LazyTrace_terse_closure(this));
+    },
+    toString$0(_) {
+      return this.get$_lazy_trace$_trace().toString$0(0);
+    },
+    $isStackTrace: 1,
+    $isTrace: 1
+  };
+  A.LazyTrace_terse_closure.prototype = {
+    call$0() {
+      return this.$this.get$_lazy_trace$_trace().get$terse();
+    },
+    $signature: 261
+  };
+  A.Trace.prototype = {
+    get$terse() {
+      return this.foldFrames$2$terse(new A.Trace_terse_closure(), true);
+    },
+    foldFrames$2$terse(predicate, terse) {
+      var newFrames, t1, t2, t3, _box_0 = {};
+      _box_0.predicate = predicate;
+      _box_0.predicate = new A.Trace_foldFrames_closure(predicate);
+      newFrames = A._setArrayType([], type$.JSArray_Frame);
+      for (t1 = this.frames, t2 = A._arrayInstanceType(t1)._eval$1("ReversedListIterable<1>"), t1 = new A.ReversedListIterable(t1, t2), t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListIterable.E>")), t2 = t2._eval$1("ListIterable.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (t3 instanceof A.UnparsedFrame || !_box_0.predicate.call$1(t3))
+          newFrames.push(t3);
+        else if (newFrames.length === 0 || !_box_0.predicate.call$1(B.JSArray_methods.get$last(newFrames)))
+          newFrames.push(new A.Frame(t3.get$uri(), t3.get$line(), t3.get$column(), t3.get$member()));
+      }
+      t1 = type$.MappedListIterable_Frame_Frame;
+      newFrames = A.List_List$of(new A.MappedListIterable(newFrames, new A.Trace_foldFrames_closure0(_box_0), t1), true, t1._eval$1("ListIterable.E"));
+      if (newFrames.length > 1 && _box_0.predicate.call$1(B.JSArray_methods.get$first(newFrames)))
+        B.JSArray_methods.removeAt$1(newFrames, 0);
+      return A.Trace$(new A.ReversedListIterable(newFrames, A._arrayInstanceType(newFrames)._eval$1("ReversedListIterable<1>")), this.original._stackTrace);
+    },
+    toString$0(_) {
+      var t1 = this.frames,
+        t2 = A._arrayInstanceType(t1);
+      return new A.MappedListIterable(t1, new A.Trace_toString_closure(new A.MappedListIterable(t1, new A.Trace_toString_closure0(), t2._eval$1("MappedListIterable<1,int>")).fold$2(0, 0, B.CONSTANT)), t2._eval$1("MappedListIterable<1,String>")).join$0(0);
+    },
+    $isStackTrace: 1,
+    get$frames() {
+      return this.frames;
+    }
+  };
+  A.Trace_Trace$from_closure.prototype = {
+    call$0() {
+      return A.Trace_Trace$parse(this.trace.toString$0(0));
+    },
+    $signature: 261
+  };
+  A.Trace__parseVM_closure.prototype = {
+    call$1(line) {
+      return line.length !== 0;
+    },
+    $signature: 4
+  };
+  A.Trace$parseV8_closure.prototype = {
+    call$1(line) {
+      return !B.JSString_methods.startsWith$1(line, $.$get$_v8TraceLine());
+    },
+    $signature: 4
+  };
+  A.Trace$parseJSCore_closure.prototype = {
+    call$1(line) {
+      return line !== "\tat ";
+    },
+    $signature: 4
+  };
+  A.Trace$parseFirefox_closure.prototype = {
+    call$1(line) {
+      return line.length !== 0 && line !== "[native code]";
+    },
+    $signature: 4
+  };
+  A.Trace$parseFriendly_closure.prototype = {
+    call$1(line) {
+      return !B.JSString_methods.startsWith$1(line, "=====");
+    },
+    $signature: 4
+  };
+  A.Trace_terse_closure.prototype = {
+    call$1(_) {
+      return false;
+    },
+    $signature: 260
+  };
+  A.Trace_foldFrames_closure.prototype = {
+    call$1(frame) {
+      var t1;
+      if (this.oldPredicate.call$1(frame))
+        return true;
+      if (frame.get$isCore())
+        return true;
+      if (frame.get$$package() === "stack_trace")
+        return true;
+      t1 = frame.get$member();
+      t1.toString;
+      if (!B.JSString_methods.contains$1(t1, "<async>"))
+        return false;
+      return frame.get$line() == null;
+    },
+    $signature: 260
+  };
+  A.Trace_foldFrames_closure0.prototype = {
+    call$1(frame) {
+      var t1, t2;
+      if (frame instanceof A.UnparsedFrame || !this._box_0.predicate.call$1(frame))
+        return frame;
+      t1 = frame.get$library();
+      t2 = $.$get$_terseRegExp();
+      return new A.Frame(A.Uri_parse(A.stringReplaceAllUnchecked(t1, t2, "")), null, null, frame.get$member());
+    },
+    $signature: 293
+  };
+  A.Trace_toString_closure0.prototype = {
+    call$1(frame) {
+      return frame.get$location().length;
+    },
+    $signature: 264
+  };
+  A.Trace_toString_closure.prototype = {
+    call$1(frame) {
+      if (frame instanceof A.UnparsedFrame)
+        return frame.toString$0(0) + "\n";
+      return B.JSString_methods.padRight$1(frame.get$location(), this.longest) + "  " + A.S(frame.get$member()) + "\n";
+    },
+    $signature: 263
+  };
+  A.UnparsedFrame.prototype = {
+    toString$0(_) {
+      return this.member;
+    },
+    $isFrame: 1,
+    get$uri() {
+      return this.uri;
+    },
+    get$line() {
+      return null;
+    },
+    get$column() {
+      return null;
+    },
+    get$isCore() {
+      return false;
+    },
+    get$library() {
+      return "unparsed";
+    },
+    get$$package() {
+      return null;
+    },
+    get$location() {
+      return "unparsed";
+    },
+    get$member() {
+      return this.member;
+    }
+  };
+  A.TransformByHandlers_transformByHandlers_closure.prototype = {
+    call$0() {
+      var t2, subscription, t3, t4, _this = this, t1 = {};
+      t1.valuesDone = false;
+      t2 = _this.controller;
+      subscription = _this._this.listen$3$onDone$onError(0, new A.TransformByHandlers_transformByHandlers__closure(_this.handleData, t2, _this.S), new A.TransformByHandlers_transformByHandlers__closure0(t1, _this.handleDone, t2), new A.TransformByHandlers_transformByHandlers__closure1(_this.handleError, t2));
+      t3 = _this._box_1;
+      t3.subscription = subscription;
+      t2.set$onPause(subscription.get$pause(subscription));
+      t4 = t3.subscription;
+      t2.set$onResume(t4.get$resume(t4));
+      t2.set$onCancel(new A.TransformByHandlers_transformByHandlers__closure2(t3, t1));
+    },
+    $signature: 0
+  };
+  A.TransformByHandlers_transformByHandlers__closure.prototype = {
+    call$1(value) {
+      return this.handleData.call$2(value, this.controller);
+    },
+    $signature() {
+      return this.S._eval$1("~(0)");
+    }
+  };
+  A.TransformByHandlers_transformByHandlers__closure1.prototype = {
+    call$2(error, stackTrace) {
+      this.handleError.call$3(error, stackTrace, this.controller);
+    },
+    $signature: 53
+  };
+  A.TransformByHandlers_transformByHandlers__closure0.prototype = {
+    call$0() {
+      this._box_0.valuesDone = true;
+      this.handleDone.call$1(this.controller);
+    },
+    $signature: 0
+  };
+  A.TransformByHandlers_transformByHandlers__closure2.prototype = {
+    call$0() {
+      var t1 = this._box_1,
+        toCancel = t1.subscription;
+      t1.subscription = null;
+      if (!this._box_0.valuesDone)
+        return toCancel.cancel$0();
+      return null;
+    },
+    $signature: 191
+  };
+  A.RateLimit__debounceAggregate_closure.prototype = {
+    call$2(value, sink) {
+      var _this = this,
+        t1 = _this._box_0,
+        t2 = new A.RateLimit__debounceAggregate_closure_emit(t1, sink, _this.S),
+        t3 = t1.timer;
+      if (t3 != null)
+        t3.cancel$0();
+      t1.soFar = _this.collect.call$2(value, t1.soFar);
+      t1.hasPending = true;
+      if (t1.timer == null && _this.leading) {
+        t1.emittedLatestAsLeading = true;
+        t2.call$0();
+      } else
+        t1.emittedLatestAsLeading = false;
+      t1.timer = A.Timer_Timer(_this.duration, new A.RateLimit__debounceAggregate__closure(t1, _this.trailing, t2, sink));
+    },
+    $signature() {
+      return this.T._eval$1("@<0>")._bind$1(this.S)._eval$1("~(1,EventSink<2>)");
+    }
+  };
+  A.RateLimit__debounceAggregate_closure_emit.prototype = {
+    call$0() {
+      var t1 = this._box_0,
+        t2 = t1.soFar;
+      if (t2 == null)
+        t2 = this.S._as(t2);
+      this.sink.add$1(0, t2);
+      t1.soFar = null;
+      t1.hasPending = false;
+    },
+    $signature: 0
+  };
+  A.RateLimit__debounceAggregate__closure.prototype = {
+    call$0() {
+      var t1 = this._box_0,
+        t2 = t1.emittedLatestAsLeading;
+      if (!t2)
+        this.emit.call$0();
+      if (t1.shouldClose)
+        this.sink.close$0(0);
+      t1.timer = null;
+    },
+    $signature: 0
+  };
+  A.RateLimit__debounceAggregate_closure0.prototype = {
+    call$1(sink) {
+      var t1 = this._box_0;
+      if (t1.hasPending && this.trailing)
+        t1.shouldClose = true;
+      else {
+        t1 = t1.timer;
+        if (t1 != null)
+          t1.cancel$0();
+        sink.close$0(0);
+      }
+    },
+    $signature() {
+      return this.S._eval$1("~(EventSink<0>)");
+    }
+  };
+  A.StringScannerException.prototype = {
+    get$source() {
+      return A._asString(this.source);
+    }
+  };
+  A.LineScanner.prototype = {
+    scanChar$1(character) {
+      if (!this.super$StringScanner$scanChar(character))
+        return false;
+      this._adjustLineAndColumn$1(character);
+      return true;
+    },
+    readChar$0() {
+      var character = this.super$StringScanner$readChar();
+      this._adjustLineAndColumn$1(character);
+      return character;
+    },
+    _adjustLineAndColumn$1(character) {
+      var t1, _this = this;
+      if (character !== 10)
+        t1 = character === 13 && _this.peekChar$0() !== 10;
+      else
+        t1 = true;
+      if (t1) {
+        ++_this._line_scanner$_line;
+        _this._line_scanner$_column = 0;
+      } else {
+        t1 = _this._line_scanner$_column;
+        _this._line_scanner$_column = t1 + (character >= 65536 && character <= 1114111 ? 2 : 1);
+      }
+    },
+    scan$1(pattern) {
+      var t1, newlines, t2, _this = this;
+      if (!_this.super$StringScanner$scan(pattern))
+        return false;
+      t1 = _this.get$lastMatch();
+      newlines = _this._newlinesIn$1(t1.pattern);
+      t1 = _this._line_scanner$_line;
+      t2 = newlines.length;
+      _this._line_scanner$_line = t1 + t2;
+      if (t2 === 0) {
+        t1 = _this._line_scanner$_column;
+        t2 = _this.get$lastMatch();
+        _this._line_scanner$_column = t1 + t2.pattern.length;
+      } else {
+        t1 = _this.get$lastMatch();
+        _this._line_scanner$_column = t1.pattern.length - J.get$end$z(B.JSArray_methods.get$last(newlines));
+      }
+      return true;
+    },
+    _newlinesIn$1(text) {
+      var t1 = $.$get$_newlineRegExp().allMatches$1(0, text),
+        newlines = A.List_List$of(t1, true, A._instanceType(t1)._eval$1("Iterable.E"));
+      if (this.peekChar$1(-1) === 13 && this.peekChar$0() === 10)
+        B.JSArray_methods.removeLast$0(newlines);
+      return newlines;
+    }
+  };
+  A.SpanScanner.prototype = {
+    set$state(state) {
+      if (state._scanner !== this)
+        throw A.wrapException(A.ArgumentError$(string$.The_gi, null));
+      this.set$position(state.position);
+    },
+    spanFrom$2(startState, endState) {
+      var endPosition = endState == null ? this._string_scanner$_position : endState.position;
+      return this._sourceFile.span$2(0, startState.position, endPosition);
+    },
+    spanFrom$1(startState) {
+      return this.spanFrom$2(startState, null);
+    },
+    matches$1(pattern) {
+      var t1, t2, _this = this;
+      if (!_this.super$StringScanner$matches(pattern))
+        return false;
+      t1 = _this._string_scanner$_position;
+      t2 = _this.get$lastMatch();
+      _this._sourceFile.span$2(0, t1, t2.start + t2.pattern.length);
+      return true;
+    },
+    error$3$length$position(_, message, $length, position) {
+      var match, t2, _this = this,
+        t1 = _this.string;
+      A.validateErrorArgs(t1, null, position, $length);
+      match = position == null && $length == null ? _this.get$lastMatch() : null;
+      if (position == null)
+        position = match == null ? _this._string_scanner$_position : match.start;
+      if ($length == null)
+        if (match == null)
+          $length = 0;
+        else {
+          t2 = match.start;
+          $length = t2 + match.pattern.length - t2;
+        }
+      throw A.wrapException(A.StringScannerException$(message, _this._sourceFile.span$2(0, position, position + $length), t1));
+    },
+    error$1(_, message) {
+      return this.error$3$length$position(0, message, null, null);
+    },
+    error$2$position(_, message, position) {
+      return this.error$3$length$position(0, message, null, position);
+    },
+    error$2$length(_, message, $length) {
+      return this.error$3$length$position(0, message, $length, null);
+    }
+  };
+  A._SpanScannerState.prototype = {};
+  A.StringScanner.prototype = {
+    set$position(position) {
+      if (B.JSInt_methods.get$isNegative(position) || position > this.string.length)
+        throw A.wrapException(A.ArgumentError$("Invalid position " + position, null));
+      this._string_scanner$_position = position;
+      this._lastMatch = null;
+    },
+    get$lastMatch() {
+      var _this = this;
+      if (_this._string_scanner$_position !== _this._lastMatchPosition)
+        _this._lastMatch = null;
+      return _this._lastMatch;
+    },
+    readChar$0() {
+      var _this = this,
+        t1 = _this.string;
+      if (_this._string_scanner$_position === t1.length)
+        _this._fail$1("more input");
+      return t1.charCodeAt(_this._string_scanner$_position++);
+    },
+    peekChar$1(offset) {
+      var index;
+      if (offset == null)
+        offset = 0;
+      index = this._string_scanner$_position + offset;
+      if (index < 0 || index >= this.string.length)
+        return null;
+      return this.string.charCodeAt(index);
+    },
+    peekChar$0() {
+      return this.peekChar$1(null);
+    },
+    scanChar$1(character) {
+      var t1, t2, t3, t4, _this = this;
+      if (character >= 65536 && character <= 1114111) {
+        t1 = _this._string_scanner$_position;
+        t2 = t1 + 1;
+        t3 = _this.string;
+        if (t2 < t3.length) {
+          t4 = character - 65536;
+          t2 = t3.charCodeAt(t1) !== B.JSInt_methods._shrOtherPositive$1(t4, 10) + 55296 || t3.charCodeAt(t2) !== (t4 & 1023) + 56320;
+        } else
+          t2 = true;
+        if (t2)
+          return false;
+        else {
+          _this._string_scanner$_position = t1 + 2;
+          return true;
+        }
+      } else {
+        t1 = _this._string_scanner$_position;
+        t2 = _this.string;
+        if (t1 === t2.length)
+          return false;
+        if (t2.charCodeAt(t1) !== character)
+          return false;
+        _this._string_scanner$_position = t1 + 1;
+        return true;
+      }
+    },
+    expectChar$2$name(character, $name) {
+      if (this.scanChar$1(character))
+        return;
+      if ($name == null)
+        if (character === 92)
+          $name = '"\\"';
+        else
+          $name = character === 34 ? '"\\""' : '"' + A.Primitives_stringFromCharCode(character) + '"';
+      this._fail$1($name);
+    },
+    expectChar$1(character) {
+      return this.expectChar$2$name(character, null);
+    },
+    scan$1(pattern) {
+      var t1, _this = this,
+        success = _this.matches$1(pattern);
+      if (success) {
+        t1 = _this._lastMatch;
+        _this._lastMatchPosition = _this._string_scanner$_position = t1.start + t1.pattern.length;
+      }
+      return success;
+    },
+    expect$1(pattern) {
+      var t1, $name;
+      if (this.scan$1(pattern))
+        return;
+      t1 = A.stringReplaceAllUnchecked(pattern, "\\", "\\\\");
+      $name = '"' + A.stringReplaceAllUnchecked(t1, '"', '\\"') + '"';
+      this._fail$1($name);
+    },
+    expectDone$0() {
+      if (this._string_scanner$_position === this.string.length)
+        return;
+      this._fail$1("no more input");
+    },
+    matches$1(pattern) {
+      var _this = this,
+        t1 = B.JSString_methods.matchAsPrefix$2(pattern, _this.string, _this._string_scanner$_position);
+      _this._lastMatch = t1;
+      _this._lastMatchPosition = _this._string_scanner$_position;
+      return t1 != null;
+    },
+    substring$1(_, start) {
+      var end = this._string_scanner$_position;
+      return B.JSString_methods.substring$2(this.string, start, end);
+    },
+    error$3$length$position(_, message, $length, position) {
+      var match, t2, _this = this,
+        t1 = _this.string;
+      A.validateErrorArgs(t1, null, position, $length);
+      match = position == null && $length == null ? _this.get$lastMatch() : null;
+      if (position == null)
+        position = match == null ? _this._string_scanner$_position : match.start;
+      if ($length == null)
+        if (match == null)
+          $length = 0;
+        else {
+          t2 = match.start;
+          $length = t2 + match.pattern.length - t2;
+        }
+      throw A.wrapException(A.StringScannerException$(message, A.SourceFile$fromString(t1, _this.sourceUrl).span$2(0, position, position + $length), t1));
+    },
+    error$1(_, message) {
+      return this.error$3$length$position(0, message, null, null);
+    },
+    _fail$1($name) {
+      this.error$3$length$position(0, "expected " + $name + ".", 0, this._string_scanner$_position);
+    }
+  };
+  A.AsciiGlyphSet.prototype = {
+    glyphOrAscii$2(glyph, alternative) {
+      return alternative;
+    },
+    get$horizontalLine() {
+      return "-";
+    },
+    get$verticalLine() {
+      return "|";
+    },
+    get$topLeftCorner() {
+      return ",";
+    },
+    get$bottomLeftCorner() {
+      return "'";
+    },
+    get$cross() {
+      return "+";
+    },
+    get$upEnd() {
+      return "'";
+    },
+    get$downEnd() {
+      return ",";
+    },
+    get$horizontalLineBold() {
+      return "=";
+    }
+  };
+  A.UnicodeGlyphSet.prototype = {
+    glyphOrAscii$2(glyph, alternative) {
+      return glyph;
+    },
+    get$horizontalLine() {
+      return "\u2500";
+    },
+    get$verticalLine() {
+      return "\u2502";
+    },
+    get$topLeftCorner() {
+      return "\u250c";
+    },
+    get$bottomLeftCorner() {
+      return "\u2514";
+    },
+    get$cross() {
+      return "\u253c";
+    },
+    get$upEnd() {
+      return "\u2575";
+    },
+    get$downEnd() {
+      return "\u2577";
+    },
+    get$horizontalLineBold() {
+      return "\u2501";
+    }
+  };
+  A.WatchEvent.prototype = {
+    toString$0(_) {
+      return this.type.toString$0(0) + " " + this.path;
+    }
+  };
+  A.ChangeType.prototype = {
+    toString$0(_) {
+      return this._watch_event$_name;
+    }
+  };
+  A.AnySelectorVisitor0.prototype = {
+    visitComplexSelector$1(complex) {
+      return B.JSArray_methods.any$1(complex.components, new A.AnySelectorVisitor_visitComplexSelector_closure0(this));
+    },
+    visitCompoundSelector$1(compound) {
+      return B.JSArray_methods.any$1(compound.components, new A.AnySelectorVisitor_visitCompoundSelector_closure0(this));
+    },
+    visitPseudoSelector$1(pseudo) {
+      var selector = pseudo.selector;
+      return selector == null ? false : this.visitSelectorList$1(selector);
+    },
+    visitSelectorList$1(list) {
+      return B.JSArray_methods.any$1(list.components, this.get$visitComplexSelector());
+    },
+    visitAttributeSelector$1(attribute) {
+      return false;
+    },
+    visitClassSelector$1(klass) {
+      return false;
+    },
+    visitIDSelector$1(id) {
+      return false;
+    },
+    visitParentSelector$1($parent) {
+      return false;
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      return false;
+    },
+    visitTypeSelector$1(type) {
+      return false;
+    },
+    visitUniversalSelector$1(universal) {
+      return false;
+    }
+  };
+  A.AnySelectorVisitor_visitComplexSelector_closure0.prototype = {
+    call$1(component) {
+      return this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature: 51
+  };
+  A.AnySelectorVisitor_visitCompoundSelector_closure0.prototype = {
+    call$1(simple) {
+      return simple.accept$1(this.$this);
+    },
+    $signature: 15
+  };
+  A.SupportsAnything0.prototype = {
+    toString$0(_) {
+      return "(" + this.contents.toString$0(0) + ")";
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Argument0.prototype = {
+    toString$0(_) {
+      var t1 = this.defaultValue,
+        t2 = this.name;
+      return t1 == null ? t2 : t2 + ": " + t1.toString$0(0);
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ArgumentDeclaration0.prototype = {
+    get$spanWithName() {
+      var t3, t4,
+        t1 = this.span,
+        t2 = t1.file,
+        text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2._decodedChars, 0, null), 0, null),
+        i = A.FileLocation$_(t2, t1._file$_start).offset - 1;
+      while (true) {
+        if (i > 0) {
+          t3 = text.charCodeAt(i);
+          t3 = t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        --i;
+      }
+      t3 = text.charCodeAt(i);
+      if (!(t3 === 95 || A.CharacterExtension_get_isAlphabetic0(t3) || t3 >= 128))
+        t3 = t3 >= 48 && t3 <= 57 || t3 === 45;
+      else
+        t3 = true;
+      if (!t3)
+        return t1;
+      --i;
+      while (true) {
+        if (i >= 0) {
+          t3 = text.charCodeAt(i);
+          if (t3 !== 95) {
+            if (!(t3 >= 97 && t3 <= 122))
+              t4 = t3 >= 65 && t3 <= 90;
+            else
+              t4 = true;
+            t4 = t4 || t3 >= 128;
+          } else
+            t4 = true;
+          if (!t4)
+            t3 = t3 >= 48 && t3 <= 57 || t3 === 45;
+          else
+            t3 = true;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        --i;
+      }
+      t3 = i + 1;
+      t4 = text.charCodeAt(t3);
+      if (!(t4 === 95 || A.CharacterExtension_get_isAlphabetic0(t4) || t4 >= 128))
+        return t1;
+      return A.SpanExtensions_trimRight0(A.SpanExtensions_trimLeft0(t2.span$2(0, t3, A.FileLocation$_(t2, t1._end).offset)));
+    },
+    verify$2(positional, names) {
+      var t1, t2, t3, namedUsed, i, argument, t4, unknownNames, _this = this,
+        _s10_ = "invocation",
+        _s8_ = "argument";
+      for (t1 = _this.$arguments, t2 = t1.length, t3 = names._baseMap, namedUsed = 0, i = 0; i < t2; ++i) {
+        argument = t1[i];
+        if (i < positional) {
+          t4 = argument.name;
+          if (t3.containsKey$1(t4))
+            throw A.wrapException(A.SassScriptException$0("Argument " + _this._argument_declaration$_originalArgumentName$1(t4) + string$.x20was_p, null));
+        } else {
+          t4 = argument.name;
+          if (t3.containsKey$1(t4))
+            ++namedUsed;
+          else if (argument.defaultValue == null)
+            throw A.wrapException(A.MultiSpanSassScriptException$0("Missing argument " + _this._argument_declaration$_originalArgumentName$1(t4) + ".", _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_this.get$spanWithName(), "declaration"], type$.FileSpan, type$.String)));
+        }
+      }
+      if (_this.restArgument != null)
+        return;
+      if (positional > t2) {
+        t1 = names.get$isEmpty(0) ? "" : "positional ";
+        throw A.wrapException(A.MultiSpanSassScriptException$0("Only " + t2 + " " + t1 + A.pluralize0(_s8_, t2, null) + " allowed, but " + positional + " " + A.pluralize0("was", positional, "were") + " passed.", _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_this.get$spanWithName(), "declaration"], type$.FileSpan, type$.String)));
+      }
+      if (namedUsed < t3.get$length(t3)) {
+        t2 = type$.String;
+        unknownNames = A.LinkedHashSet_LinkedHashSet$of(names, t2);
+        unknownNames.removeAll$1(new A.MappedListIterable(t1, new A.ArgumentDeclaration_verify_closure1(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Object?>")));
+        throw A.wrapException(A.MultiSpanSassScriptException$0("No " + A.pluralize0(_s8_, unknownNames._collection$_length, null) + " named " + A.toSentence0(unknownNames.map$1$1(0, new A.ArgumentDeclaration_verify_closure2(), type$.Object), "or") + ".", _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_this.get$spanWithName(), "declaration"], type$.FileSpan, t2)));
+      }
+    },
+    _argument_declaration$_originalArgumentName$1($name) {
+      var t1, text, t2, _i, argument, t3, t4, end, _null = null;
+      if ($name === this.restArgument) {
+        t1 = this.span;
+        text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.file._decodedChars, t1._file$_start, t1._end), 0, _null);
+        return B.JSString_methods.substring$2(B.JSString_methods.substring$1(text, B.JSString_methods.lastIndexOf$1(text, "$")), 0, B.JSString_methods.indexOf$1(text, "."));
+      }
+      for (t1 = this.$arguments, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        argument = t1[_i];
+        if (argument.name === $name) {
+          t1 = argument.defaultValue;
+          t2 = argument.span;
+          t3 = t2.file;
+          t4 = t2._file$_start;
+          t2 = t2._end;
+          if (t1 == null) {
+            t1 = t3._decodedChars;
+            t1 = A.String_String$fromCharCodes(new Uint32Array(t1.subarray(t4, A._checkValidRange(t4, t2, t1.length))), 0, _null);
+          } else {
+            t1 = t3._decodedChars;
+            text = A.String_String$fromCharCodes(new Uint32Array(t1.subarray(t4, A._checkValidRange(t4, t2, t1.length))), 0, _null);
+            t1 = B.JSString_methods.substring$2(text, 0, B.JSString_methods.indexOf$1(text, ":"));
+            end = A._lastNonWhitespace0(t1, false);
+            t1 = end == null ? "" : B.JSString_methods.substring$2(t1, 0, end + 1);
+          }
+          return t1;
+        }
+      }
+      throw A.wrapException(A.ArgumentError$(string$.This_d + $name + '".', _null));
+    },
+    matches$2(positional, names) {
+      var t1, t2, t3, namedUsed, i, argument;
+      for (t1 = this.$arguments, t2 = t1.length, t3 = names._baseMap, namedUsed = 0, i = 0; i < t2; ++i) {
+        argument = t1[i];
+        if (i < positional) {
+          if (t3.containsKey$1(argument.name))
+            return false;
+        } else if (t3.containsKey$1(argument.name))
+          ++namedUsed;
+        else if (argument.defaultValue == null)
+          return false;
+      }
+      if (this.restArgument != null)
+        return true;
+      if (positional > t2)
+        return false;
+      if (namedUsed < t3.get$length(t3))
+        return false;
+      return true;
+    },
+    toString$0(_) {
+      var t2, t3, _i,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = this.$arguments, t3 = t2.length, _i = 0; _i < t3; ++_i)
+        t1.push("$" + A.S(t2[_i]));
+      t2 = this.restArgument;
+      if (t2 != null)
+        t1.push("$" + t2 + "...");
+      return B.JSArray_methods.join$1(t1, ", ");
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ArgumentDeclaration_verify_closure1.prototype = {
+    call$1(argument) {
+      return argument.name;
+    },
+    $signature: 297
+  };
+  A.ArgumentDeclaration_verify_closure2.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A.ArgumentInvocation0.prototype = {
+    get$isEmpty(_) {
+      var t1;
+      if (this.positional.length === 0) {
+        t1 = this.named;
+        t1 = t1.get$isEmpty(t1) && this.rest == null;
+      } else
+        t1 = false;
+      return t1;
+    },
+    toString$0(_) {
+      var t2, t3, _i, _1_0, _2_0, _this = this,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = _this.positional, t3 = t2.length, _i = 0; _i < t3; ++_i)
+        t1.push(_this._argument_invocation$_parenthesizeArgument$1(t2[_i]));
+      for (t2 = A.MapExtensions_get_pairs0(_this.named, type$.String, type$.Expression_2), t2 = t2.get$iterator(t2); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push("$" + t3._0 + ": " + _this._argument_invocation$_parenthesizeArgument$1(t3._1));
+      }
+      _1_0 = _this.rest;
+      if (_1_0 != null)
+        t1.push(_this._argument_invocation$_parenthesizeArgument$1(_1_0) + "...");
+      _2_0 = _this.keywordRest;
+      if (_2_0 != null)
+        t1.push(_this._argument_invocation$_parenthesizeArgument$1(_2_0) + "...");
+      return "(" + B.JSArray_methods.join$1(t1, ", ") + ")";
+    },
+    _argument_invocation$_parenthesizeArgument$1(argument) {
+      var t1;
+      $label0$0: {
+        if (argument instanceof A.ListExpression0 && B.ListSeparator_ECn0 === argument.separator && !argument.hasBrackets && argument.contents.length >= 2) {
+          t1 = "(" + argument.toString$0(0) + ")";
+          break $label0$0;
+        }
+        t1 = argument.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.argumentListClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassArgumentList", new A.argumentListClass__closure()));
+      A.defineGetter(J.get$$prototype$x(jsClass), "keywords", new A.argumentListClass__closure0(), null);
+      A.JSClassExtension_injectSuperclass(t1._as(A.SassArgumentList$0(A._setArrayType([], type$.JSArray_Value_2), A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.Value_2), B.ListSeparator_undecided_null_undecided0).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.argumentListClass__closure.prototype = {
+    call$4($self, contents, keywords, separator) {
+      var t3,
+        t1 = self.immutable.isOrderedMap(contents) ? J.toArray$0$x(type$.ImmutableList._as(contents)) : type$.List_dynamic._as(contents),
+        t2 = type$.Value_2;
+      t1 = J.cast$1$0$ax(t1, t2);
+      t3 = self.immutable.isOrderedMap(keywords) ? A.immutableMapToDartMap(type$.ImmutableMap._as(keywords)) : A.objectToMap(keywords);
+      return A.SassArgumentList$0(t1, t3.cast$2$0(0, type$.String, t2), A.jsToDartSeparator(separator));
+    },
+    call$3($self, contents, keywords) {
+      return this.call$4($self, contents, keywords, ",");
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [","];
+    },
+    $signature: 299
+  };
+  A.argumentListClass__closure0.prototype = {
+    call$1($self) {
+      $self._argument_list$_wereKeywordsAccessed = true;
+      return A.dartMapToImmutableMap($self._argument_list$_keywords);
+    },
+    $signature: 300
+  };
+  A.SassArgumentList0.prototype = {};
+  A.JSArray1.prototype = {};
+  A.AsyncImporter0.prototype = {
+    isNonCanonicalScheme$1(scheme) {
+      return false;
+    }
+  };
+  A.JSToDartAsyncImporter.prototype = {
+    canonicalize$1(_, url) {
+      return this.canonicalize$body$JSToDartAsyncImporter(0, url);
+    },
+    canonicalize$body$JSToDartAsyncImporter(_, url) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Uri),
+        $async$returnValue, $async$self = this, t1, result;
+      var $async$canonicalize$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              result = A.wrapJSExceptions(new A.JSToDartAsyncImporter_canonicalize_closure($async$self, url));
+              $async$goto = result != null && result instanceof self.Promise ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(A.promiseToFuture(type$.Promise._as(result), type$.nullable_Object), $async$canonicalize$1);
+            case 5:
+              // returning from await.
+              result = $async$result;
+            case 4:
+              // join
+              if (result == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t1 = self.URL;
+              if (result instanceof t1) {
+                $async$returnValue = A.Uri_parse(J.toString$0$(type$.JSUrl._as(result)));
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              A.jsThrow(new self.Error(string$.The_ca));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$canonicalize$1, $async$completer);
+    },
+    load$1(_, url) {
+      return this.load$body$JSToDartAsyncImporter(0, url);
+    },
+    load$body$JSToDartAsyncImporter(_, url) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_ImporterResult_2),
+        $async$returnValue, $async$self = this, t1, contents, syntax, t2, result;
+      var $async$load$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              result = A.wrapJSExceptions(new A.JSToDartAsyncImporter_load_closure($async$self, url));
+              $async$goto = result != null && result instanceof self.Promise ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(A.promiseToFuture(type$.Promise._as(result), type$.nullable_Object), $async$load$1);
+            case 5:
+              // returning from await.
+              result = $async$result;
+            case 4:
+              // join
+              if (result == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              type$.JSImporterResult._as(result);
+              t1 = J.getInterceptor$x(result);
+              contents = t1.get$contents(result);
+              if (A._asString(new self.Function("value", "return typeof value").call$1(contents)) !== "string")
+                A.jsThrow(new A.ArgumentError(true, contents, "contents", "must be a string but was: " + A.jsType(contents)));
+              syntax = t1.get$syntax(result);
+              if (contents == null || syntax == null)
+                A.jsThrow(new self.Error(string$.The_lo));
+              t2 = A.parseSyntax(syntax);
+              $async$returnValue = A.ImporterResult$(contents, A.NullableExtension_andThen0(t1.get$sourceMapUrl(result), A.utils1__jsToDartUrl$closure()), t2);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$load$1, $async$completer);
+    },
+    isNonCanonicalScheme$1(scheme) {
+      return this._nonCanonicalSchemes.contains$1(0, scheme);
+    }
+  };
+  A.JSToDartAsyncImporter_canonicalize_closure.prototype = {
+    call$0() {
+      return this.$this._async0$_canonicalize.call$2(this.url.toString$0(0), A.canonicalizeContext0());
+    },
+    $signature: 31
+  };
+  A.JSToDartAsyncImporter_load_closure.prototype = {
+    call$0() {
+      return this.$this._load.call$1(new self.URL(this.url.toString$0(0)));
+    },
+    $signature: 31
+  };
+  A.AsyncBuiltInCallable0.prototype = {
+    callbackFor$2(positional, names) {
+      return new A._Record_2(this._async_built_in0$_arguments, this._async_built_in0$_callback);
+    },
+    $isAsyncCallable0: 1,
+    get$name(receiver) {
+      return this.name;
+    },
+    get$acceptsContent() {
+      return this.acceptsContent;
+    }
+  };
+  A.AsyncBuiltInCallable$mixin_closure0.prototype = {
+    call$1($arguments) {
+      return this.$call$body$AsyncBuiltInCallable$mixin_closure0($arguments);
+    },
+    $call$body$AsyncBuiltInCallable$mixin_closure0($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t1;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.callback.call$1($arguments);
+              $async$goto = 3;
+              return A._asyncAwait(t1 instanceof A._Future ? t1 : A._Future$value(t1, type$.void), $async$call$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = B.C__SassNull0;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 89
+  };
+  A._compileStylesheet_closure2.prototype = {
+    call$1(url) {
+      return url === "" ? A.Uri_Uri$dataFromString(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(this.stylesheet.span.file._decodedChars, 0, null), 0, null), B.C_Utf8Codec, null).get$_text() : this.importCache.sourceMapUrl$1(0, A.Uri_parse(url)).toString$0(0);
+    },
+    $signature: 5
+  };
+  A.AsyncEnvironment0.prototype = {
+    closure$0() {
+      var t4, t5, t6, _this = this,
+        t1 = _this._async_environment0$_forwardedModules,
+        t2 = _this._async_environment0$_nestedForwardedModules,
+        t3 = _this._async_environment0$_variables;
+      t3 = A._setArrayType(t3.slice(0), A._arrayInstanceType(t3));
+      t4 = _this._async_environment0$_variableNodes;
+      t4 = A._setArrayType(t4.slice(0), A._arrayInstanceType(t4));
+      t5 = _this._async_environment0$_functions;
+      t5 = A._setArrayType(t5.slice(0), A._arrayInstanceType(t5));
+      t6 = _this._async_environment0$_mixins;
+      t6 = A._setArrayType(t6.slice(0), A._arrayInstanceType(t6));
+      return A.AsyncEnvironment$_0(_this._async_environment0$_modules, _this._async_environment0$_namespaceNodes, _this._async_environment0$_globalModules, _this._async_environment0$_importedModules, t1, t2, _this._async_environment0$_allModules, t3, t4, t5, t6, _this._async_environment0$_content);
+    },
+    forwardModule$2(module, rule) {
+      var view, t1, t2, _this = this,
+        forwardedModules = _this._async_environment0$_forwardedModules;
+      if (forwardedModules == null)
+        forwardedModules = _this._async_environment0$_forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_AsyncCallable_2, type$.AstNode_2);
+      view = A.ForwardedModuleView_ifNecessary0(module, rule, type$.AsyncCallable_2);
+      for (t1 = A.LinkedHashMapKeyIterator$(forwardedModules, forwardedModules.__js_helper$_modifications); t1.moveNext$0();) {
+        t2 = t1.__js_helper$_current;
+        _this._async_environment0$_assertNoConflicts$5(view.get$variables(), t2.get$variables(), view, t2, "variable");
+        _this._async_environment0$_assertNoConflicts$5(view.get$functions(view), t2.get$functions(t2), view, t2, "function");
+        _this._async_environment0$_assertNoConflicts$5(view.get$mixins(), t2.get$mixins(), view, t2, "mixin");
+      }
+      _this._async_environment0$_allModules.push(module);
+      forwardedModules.$indexSet(0, view, rule);
+    },
+    _async_environment0$_assertNoConflicts$5(newMembers, oldMembers, newModule, oldModule, type) {
+      var larger, smaller, t1, t2, t3, t4, $name, small, large, span;
+      if (newMembers.get$length(newMembers) < oldMembers.get$length(oldMembers)) {
+        larger = oldMembers;
+        smaller = newMembers;
+      } else {
+        larger = newMembers;
+        smaller = oldMembers;
+      }
+      for (t1 = type$.String, t2 = A.MapExtensions_get_pairs0(smaller, t1, type$.Object), t2 = t2.get$iterator(t2), t3 = type === "variable"; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        $name = t4._0;
+        small = t4._1;
+        large = larger.$index(0, $name);
+        if (large == null)
+          continue;
+        if (t3 ? newModule.variableIdentity$1($name) === oldModule.variableIdentity$1($name) : J.$eq$(large, small))
+          continue;
+        if (t3)
+          $name = "$" + $name;
+        t2 = this._async_environment0$_forwardedModules;
+        if (t2 == null)
+          span = null;
+        else {
+          t2 = t2.$index(0, oldModule);
+          span = t2 == null ? null : J.get$span$z(t2);
+        }
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, t1);
+        if (span != null)
+          t2.$indexSet(0, span, "original @forward");
+        throw A.wrapException(A.MultiSpanSassScriptException$0("Two forwarded modules both define a " + type + " named " + $name + ".", "new @forward", t2));
+      }
+    },
+    importForwards$1(module) {
+      var forwardedModules, t1, t2, t3, t4, node, t5, t6, t7, t8, t9, t10, _i, t11, shadowed, _length, _list, _this = this,
+        forwarded = module._async_environment0$_environment._async_environment0$_forwardedModules;
+      if (forwarded == null)
+        return;
+      forwardedModules = _this._async_environment0$_forwardedModules;
+      if (forwardedModules != null) {
+        t1 = type$.Module_AsyncCallable_2;
+        t2 = type$.AstNode_2;
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t1 = A.MapExtensions_get_pairs0(forwarded, t1, t2), t1 = t1.get$iterator(t1), t2 = _this._async_environment0$_globalModules; t1.moveNext$0();) {
+          t4 = t1.get$current(t1);
+          module = t4._0;
+          node = t4._1;
+          if (!forwardedModules.containsKey$1(module) || !t2.containsKey$1(module))
+            t3.$indexSet(0, module, node);
+        }
+        forwarded = t3;
+      } else
+        forwardedModules = _this._async_environment0$_forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_AsyncCallable_2, type$.AstNode_2);
+      t1 = type$.String;
+      t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t3 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t3.moveNext$0();)
+        for (t4 = t3.__js_helper$_current.get$variables(), t4 = J.get$iterator$ax(t4.get$keys(t4)); t4.moveNext$0();)
+          t2.add$1(0, t4.get$current(t4));
+      t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();) {
+        t5 = t4.__js_helper$_current;
+        for (t5 = t5.get$functions(t5), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t3.add$1(0, t5.get$current(t5));
+      }
+      t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();)
+        for (t5 = t4.__js_helper$_current.get$mixins(), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t1.add$1(0, t5.get$current(t5));
+      t4 = _this._async_environment0$_variables;
+      t5 = t4.length;
+      if (t5 === 1) {
+        for (t5 = _this._async_environment0$_importedModules, t6 = type$.Module_AsyncCallable_2, t7 = type$.AstNode_2, t8 = A.MapExtensions_get_pairs0(t5, t6, t7).toList$0(0), t9 = t8.length, t10 = type$.AsyncCallable_2, _i = 0; _i < t8.length; t8.length === t9 || (0, A.throwConcurrentModificationError)(t8), ++_i) {
+          t11 = t8[_i];
+          module = t11._0;
+          node = t11._1;
+          shadowed = A.ShadowedModuleView_ifNecessary0(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            t5.remove$1(0, module);
+            t11 = shadowed.variables;
+            if (t11.get$isEmpty(t11)) {
+              t11 = shadowed.functions;
+              if (t11.get$isEmpty(t11)) {
+                t11 = shadowed.mixins;
+                if (t11.get$isEmpty(t11)) {
+                  t11 = shadowed._shadowed_view0$_inner;
+                  t11 = t11.get$css(t11);
+                  t11 = J.get$isEmpty$asx(t11.get$children(t11));
+                } else
+                  t11 = false;
+              } else
+                t11 = false;
+            } else
+              t11 = false;
+            if (!t11)
+              t5.$indexSet(0, shadowed, node);
+          }
+        }
+        for (t6 = A.MapExtensions_get_pairs0(forwardedModules, t6, t7).toList$0(0), t7 = t6.length, _i = 0; _i < t6.length; t6.length === t7 || (0, A.throwConcurrentModificationError)(t6), ++_i) {
+          t8 = t6[_i];
+          module = t8._0;
+          node = t8._1;
+          shadowed = A.ShadowedModuleView_ifNecessary0(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            forwardedModules.remove$1(0, module);
+            t8 = shadowed.variables;
+            if (t8.get$isEmpty(t8)) {
+              t8 = shadowed.functions;
+              if (t8.get$isEmpty(t8)) {
+                t8 = shadowed.mixins;
+                if (t8.get$isEmpty(t8)) {
+                  t8 = shadowed._shadowed_view0$_inner;
+                  t8 = t8.get$css(t8);
+                  t8 = J.get$isEmpty$asx(t8.get$children(t8));
+                } else
+                  t8 = false;
+              } else
+                t8 = false;
+            } else
+              t8 = false;
+            if (!t8)
+              forwardedModules.$indexSet(0, shadowed, node);
+          }
+        }
+        t5.addAll$1(0, forwarded);
+        forwardedModules.addAll$1(0, forwarded);
+      } else {
+        t6 = _this._async_environment0$_nestedForwardedModules;
+        if (t6 == null) {
+          _length = t5 - 1;
+          _list = J.JSArray_JSArray$allocateGrowable(_length, type$.List_Module_AsyncCallable_2);
+          for (t5 = type$.JSArray_Module_AsyncCallable_2, _i = 0; _i < _length; ++_i)
+            _list[_i] = A._setArrayType([], t5);
+          _this._async_environment0$_nestedForwardedModules = _list;
+          t5 = _list;
+        } else
+          t5 = t6;
+        B.JSArray_methods.addAll$1(B.JSArray_methods.get$last(t5), new A.LinkedHashMapKeyIterable(forwarded, A._instanceType(forwarded)._eval$1("LinkedHashMapKeyIterable<1>")));
+      }
+      for (t2 = A._LinkedHashSetIterator$(t2, t2._modifications, t2.$ti._precomputed1), t5 = _this._async_environment0$_variableIndices, t6 = _this._async_environment0$_variableNodes, t7 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t8 = t2._collection$_current;
+        if (t8 == null)
+          t8 = t7._as(t8);
+        t5.remove$1(0, t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t6), t8);
+      }
+      for (t2 = A._LinkedHashSetIterator$(t3, t3._modifications, t3.$ti._precomputed1), t3 = _this._async_environment0$_functionIndices, t4 = _this._async_environment0$_functions, t5 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t6 = t2._collection$_current;
+        if (t6 == null)
+          t6 = t5._as(t6);
+        t3.remove$1(0, t6);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t6);
+      }
+      for (t1 = A._LinkedHashSetIterator$(t1, t1._modifications, t1.$ti._precomputed1), t2 = _this._async_environment0$_mixinIndices, t3 = _this._async_environment0$_mixins, t4 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t5 = t1._collection$_current;
+        if (t5 == null)
+          t5 = t4._as(t5);
+        t2.remove$1(0, t5);
+        J.remove$1$z(B.JSArray_methods.get$last(t3), t5);
+      }
+    },
+    getVariable$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._async_environment0$_getModule$1(namespace).get$variables().$index(0, $name);
+      if (_this._async_environment0$_lastVariableName === $name) {
+        t1 = _this._async_environment0$_lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._async_environment0$_variables[t1], $name);
+        return t1 == null ? _this._async_environment0$_getVariableFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._async_environment0$_variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._async_environment0$_lastVariableName = $name;
+        _this._async_environment0$_lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._async_environment0$_variables[_0_0], $name);
+        return t1 == null ? _this._async_environment0$_getVariableFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment0$_variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._async_environment0$_lastVariableName = $name;
+          _this._async_environment0$_lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment0$_variables[_1_0], $name);
+          return t1 == null ? _this._async_environment0$_getVariableFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment0$_getVariableFromGlobalModule$1($name);
+      }
+    },
+    getVariable$1($name) {
+      return this.getVariable$2$namespace($name, null);
+    },
+    _async_environment0$_getVariableFromGlobalModule$1($name) {
+      return this._async_environment0$_fromOneModule$3($name, "variable", new A.AsyncEnvironment__getVariableFromGlobalModule_closure0($name));
+    },
+    getVariableNode$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._async_environment0$_getModule$1(namespace).get$variableNodes().$index(0, $name);
+      if (_this._async_environment0$_lastVariableName === $name) {
+        t1 = _this._async_environment0$_lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._async_environment0$_variableNodes[t1], $name);
+        return t1 == null ? _this._async_environment0$_getVariableNodeFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._async_environment0$_variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._async_environment0$_lastVariableName = $name;
+        _this._async_environment0$_lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._async_environment0$_variableNodes[_0_0], $name);
+        return t1 == null ? _this._async_environment0$_getVariableNodeFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment0$_variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._async_environment0$_lastVariableName = $name;
+          _this._async_environment0$_lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment0$_variableNodes[_1_0], $name);
+          return t1 == null ? _this._async_environment0$_getVariableNodeFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment0$_getVariableNodeFromGlobalModule$1($name);
+      }
+    },
+    _async_environment0$_getVariableNodeFromGlobalModule$1($name) {
+      var t1, t2, _0_0;
+      for (t1 = this._async_environment0$_importedModules, t2 = this._async_environment0$_globalModules, t2 = new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>")).followedBy$1(0, new A.LinkedHashMapKeyIterable(t2, A._instanceType(t2)._eval$1("LinkedHashMapKeyIterable<1>"))), t2 = new A.FollowedByIterator(J.get$iterator$ax(t2.__internal$_first), t2._second); t2.moveNext$0();) {
+        t1 = t2._currentIterator;
+        _0_0 = t1.get$current(t1).get$variableNodes().$index(0, $name);
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    globalVariableExists$2$namespace($name, namespace) {
+      if (namespace != null)
+        return this._async_environment0$_getModule$1(namespace).get$variables().containsKey$1($name);
+      if (B.JSArray_methods.get$first(this._async_environment0$_variables).containsKey$1($name))
+        return true;
+      return this._async_environment0$_getVariableFromGlobalModule$1($name) != null;
+    },
+    globalVariableExists$1($name) {
+      return this.globalVariableExists$2$namespace($name, null);
+    },
+    _async_environment0$_variableIndex$1($name) {
+      var t1, i;
+      for (t1 = this._async_environment0$_variables, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    setVariable$5$global$namespace($name, value, nodeWithSpan, global, namespace) {
+      var t1, moduleWithName, nestedForwardedModules, t2, t3, t4, t5, index, _this = this;
+      if (namespace != null) {
+        _this._async_environment0$_getModule$1(namespace).setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      if (global || _this._async_environment0$_variables.length === 1) {
+        _this._async_environment0$_variableIndices.putIfAbsent$2($name, new A.AsyncEnvironment_setVariable_closure2(_this, $name));
+        t1 = _this._async_environment0$_variables;
+        if (!B.JSArray_methods.get$first(t1).containsKey$1($name)) {
+          moduleWithName = _this._async_environment0$_fromOneModule$3($name, "variable", new A.AsyncEnvironment_setVariable_closure3($name));
+          if (moduleWithName != null) {
+            moduleWithName.setVariable$3($name, value, nodeWithSpan);
+            return;
+          }
+        }
+        J.$indexSet$ax(B.JSArray_methods.get$first(t1), $name, value);
+        J.$indexSet$ax(B.JSArray_methods.get$first(_this._async_environment0$_variableNodes), $name, nodeWithSpan);
+        return;
+      }
+      nestedForwardedModules = _this._async_environment0$_nestedForwardedModules;
+      if (nestedForwardedModules != null && !_this._async_environment0$_variableIndices.containsKey$1($name) && _this._async_environment0$_variableIndex$1($name) == null)
+        for (t1 = A._arrayInstanceType(nestedForwardedModules)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(nestedForwardedModules, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            if (t5 == null)
+              t5 = t4._as(t5);
+            if (t5.get$variables().containsKey$1($name)) {
+              t5.setVariable$3($name, value, nodeWithSpan);
+              return;
+            }
+          }
+        }
+      if (_this._async_environment0$_lastVariableName === $name) {
+        t1 = _this._async_environment0$_lastVariableIndex;
+        t1.toString;
+        index = t1;
+      } else
+        index = _this._async_environment0$_variableIndices.putIfAbsent$2($name, new A.AsyncEnvironment_setVariable_closure4(_this, $name));
+      if (!_this._async_environment0$_inSemiGlobalScope && index === 0) {
+        index = _this._async_environment0$_variables.length - 1;
+        _this._async_environment0$_variableIndices.$indexSet(0, $name, index);
+      }
+      _this._async_environment0$_lastVariableName = $name;
+      _this._async_environment0$_lastVariableIndex = index;
+      J.$indexSet$ax(_this._async_environment0$_variables[index], $name, value);
+      J.$indexSet$ax(_this._async_environment0$_variableNodes[index], $name, nodeWithSpan);
+    },
+    setVariable$4$global($name, value, nodeWithSpan, global) {
+      return this.setVariable$5$global$namespace($name, value, nodeWithSpan, global, null);
+    },
+    setLocalVariable$3($name, value, nodeWithSpan) {
+      var index, _this = this,
+        t1 = _this._async_environment0$_variables,
+        t2 = t1.length;
+      _this._async_environment0$_lastVariableName = $name;
+      index = _this._async_environment0$_lastVariableIndex = t2 - 1;
+      _this._async_environment0$_variableIndices.$indexSet(0, $name, index);
+      J.$indexSet$ax(t1[index], $name, value);
+      J.$indexSet$ax(_this._async_environment0$_variableNodes[index], $name, nodeWithSpan);
+    },
+    getFunction$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null) {
+        t1 = _this._async_environment0$_getModule$1(namespace);
+        return t1.get$functions(t1).$index(0, $name);
+      }
+      t1 = _this._async_environment0$_functionIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._async_environment0$_functions[_0_0], $name);
+        return t1 == null ? _this._async_environment0$_getFunctionFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment0$_functionIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment0$_functions[_1_0], $name);
+          return t1 == null ? _this._async_environment0$_getFunctionFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment0$_getFunctionFromGlobalModule$1($name);
+      }
+    },
+    getFunction$1($name) {
+      return this.getFunction$2$namespace($name, null);
+    },
+    _async_environment0$_getFunctionFromGlobalModule$1($name) {
+      return this._async_environment0$_fromOneModule$3($name, "function", new A.AsyncEnvironment__getFunctionFromGlobalModule_closure0($name));
+    },
+    _async_environment0$_functionIndex$1($name) {
+      var t1, i;
+      for (t1 = this._async_environment0$_functions, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    getMixin$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._async_environment0$_getModule$1(namespace).get$mixins().$index(0, $name);
+      t1 = _this._async_environment0$_mixinIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._async_environment0$_mixins[_0_0], $name);
+        return t1 == null ? _this._async_environment0$_getMixinFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._async_environment0$_mixinIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._async_environment0$_mixins[_1_0], $name);
+          return t1 == null ? _this._async_environment0$_getMixinFromGlobalModule$1($name) : t1;
+        } else
+          return _this._async_environment0$_getMixinFromGlobalModule$1($name);
+      }
+    },
+    _async_environment0$_getMixinFromGlobalModule$1($name) {
+      return this._async_environment0$_fromOneModule$3($name, "mixin", new A.AsyncEnvironment__getMixinFromGlobalModule_closure0($name));
+    },
+    _async_environment0$_mixinIndex$1($name) {
+      var t1, i;
+      for (t1 = this._async_environment0$_mixins, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    withContent$2($content, callback) {
+      return this.withContent$body$AsyncEnvironment0($content, callback);
+    },
+    withContent$body$AsyncEnvironment0($content, callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, oldContent;
+      var $async$withContent$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldContent = $async$self._async_environment0$_content;
+              $async$self._async_environment0$_content = $content;
+              $async$goto = 2;
+              return A._asyncAwait(callback.call$0(), $async$withContent$2);
+            case 2:
+              // returning from await.
+              $async$self._async_environment0$_content = oldContent;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$withContent$2, $async$completer);
+    },
+    asMixin$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, oldInMixin;
+      var $async$asMixin$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldInMixin = $async$self._async_environment0$_inMixin;
+              $async$self._async_environment0$_inMixin = true;
+              $async$goto = 2;
+              return A._asyncAwait(callback.call$0(), $async$asMixin$1);
+            case 2:
+              // returning from await.
+              $async$self._async_environment0$_inMixin = oldInMixin;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$asMixin$1, $async$completer);
+    },
+    scope$1$3$semiGlobal$when(callback, semiGlobal, when, $T) {
+      return this.scope$body$AsyncEnvironment0(callback, semiGlobal, when, $T, $T);
+    },
+    scope$1$1(callback, $T) {
+      return this.scope$1$3$semiGlobal$when(callback, false, true, $T);
+    },
+    scope$1$2$when(callback, when, $T) {
+      return this.scope$1$3$semiGlobal$when(callback, false, when, $T);
+    },
+    scope$1$2$semiGlobal(callback, semiGlobal, $T) {
+      return this.scope$1$3$semiGlobal$when(callback, semiGlobal, true, $T);
+    },
+    scope$body$AsyncEnvironment0(callback, semiGlobal, when, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, wasInSemiGlobalScope, $name, name0, name1, t1, t2, t3, t4, t5, t6;
+      var $async$scope$1$3$semiGlobal$when = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              semiGlobal = semiGlobal && $async$self._async_environment0$_inSemiGlobalScope;
+              wasInSemiGlobalScope = $async$self._async_environment0$_inSemiGlobalScope;
+              $async$self._async_environment0$_inSemiGlobalScope = semiGlobal;
+              $async$goto = !when ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$handler = 5;
+              $async$goto = 8;
+              return A._asyncAwait(callback.call$0(), $async$scope$1$3$semiGlobal$when);
+            case 8:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              $async$next = [1];
+              // goto finally
+              $async$goto = 6;
+              break;
+              $async$next.push(7);
+              // goto finally
+              $async$goto = 6;
+              break;
+            case 5:
+              // uncaught
+              $async$next = [2];
+            case 6:
+              // finally
+              $async$handler = 2;
+              $async$self._async_environment0$_inSemiGlobalScope = wasInSemiGlobalScope;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 7:
+              // after finally
+            case 4:
+              // join
+              t1 = $async$self._async_environment0$_variables;
+              t2 = type$.String;
+              B.JSArray_methods.add$1(t1, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.Value_2));
+              t3 = $async$self._async_environment0$_variableNodes;
+              B.JSArray_methods.add$1(t3, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.AstNode_2));
+              t4 = $async$self._async_environment0$_functions;
+              t5 = type$.AsyncCallable_2;
+              B.JSArray_methods.add$1(t4, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+              t6 = $async$self._async_environment0$_mixins;
+              B.JSArray_methods.add$1(t6, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+              t5 = $async$self._async_environment0$_nestedForwardedModules;
+              if (t5 != null)
+                t5.push(A._setArrayType([], type$.JSArray_Module_AsyncCallable_2));
+              $async$handler = 9;
+              $async$goto = 12;
+              return A._asyncAwait(callback.call$0(), $async$scope$1$3$semiGlobal$when);
+            case 12:
+              // returning from await.
+              t2 = $async$result;
+              $async$returnValue = t2;
+              $async$next = [1];
+              // goto finally
+              $async$goto = 10;
+              break;
+              $async$next.push(11);
+              // goto finally
+              $async$goto = 10;
+              break;
+            case 9:
+              // uncaught
+              $async$next = [2];
+            case 10:
+              // finally
+              $async$handler = 2;
+              $async$self._async_environment0$_inSemiGlobalScope = wasInSemiGlobalScope;
+              $async$self._async_environment0$_lastVariableIndex = $async$self._async_environment0$_lastVariableName = null;
+              for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t1))), t2 = $async$self._async_environment0$_variableIndices; t1.moveNext$0();) {
+                $name = t1.get$current(t1);
+                t2.remove$1(0, $name);
+              }
+              B.JSArray_methods.removeLast$0(t3);
+              for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t4))), t2 = $async$self._async_environment0$_functionIndices; t1.moveNext$0();) {
+                name0 = t1.get$current(t1);
+                t2.remove$1(0, name0);
+              }
+              for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t6))), t2 = $async$self._async_environment0$_mixinIndices; t1.moveNext$0();) {
+                name1 = t1.get$current(t1);
+                t2.remove$1(0, name1);
+              }
+              t1 = $async$self._async_environment0$_nestedForwardedModules;
+              if (t1 != null)
+                t1.pop();
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 11:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$scope$1$3$semiGlobal$when, $async$completer);
+    },
+    toImplicitConfiguration$0() {
+      var t2, t3, t4, i, values, nodes, t5, t6, $name, value,
+        t1 = type$.String,
+        configuration = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.ConfiguredValue_2);
+      for (t2 = this._async_environment0$_variables, t3 = type$.Value_2, t4 = this._async_environment0$_variableNodes, i = 0; i < t2.length; ++i) {
+        values = t2[i];
+        nodes = t4[i];
+        for (t5 = A.MapExtensions_get_pairs0(values, t1, t3), t5 = t5.get$iterator(t5); t5.moveNext$0();) {
+          t6 = t5.get$current(t5);
+          $name = t6._0;
+          value = t6._1;
+          t6 = nodes.$index(0, $name);
+          t6.toString;
+          configuration.$indexSet(0, $name, new A.ConfiguredValue0(value, null, t6));
+        }
+      }
+      return new A.Configuration0(configuration, null);
+    },
+    toModule$3(css, preModuleComments, extensionStore) {
+      return A._EnvironmentModule__EnvironmentModule2(this, css, preModuleComments, extensionStore, A.NullableExtension_andThen0(this._async_environment0$_forwardedModules, new A.AsyncEnvironment_toModule_closure0()));
+    },
+    toDummyModule$0() {
+      return A._EnvironmentModule__EnvironmentModule2(this, new A.CssStylesheet0(new A.UnmodifiableListView(B.List_empty16, type$.UnmodifiableListView_CssNode_2), A.SourceFile$decoded(B.List_empty4, "<dummy module>").span$1(0, 0)), B.Map_empty15, B.C_EmptyExtensionStore0, A.NullableExtension_andThen0(this._async_environment0$_forwardedModules, new A.AsyncEnvironment_toDummyModule_closure0()));
+    },
+    _async_environment0$_getModule$1(namespace) {
+      var _0_0 = this._async_environment0$_modules.$index(0, namespace);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$0('There is no module with the namespace "' + namespace + '".', null));
+    },
+    _async_environment0$_fromOneModule$1$3($name, type, callback) {
+      var t1, t2, t3, t4, t5, _1_0, _2_0, value, identity, valueInModule, identityFromModule, module, node,
+        _0_0 = this._async_environment0$_nestedForwardedModules;
+      if (_0_0 != null)
+        for (t1 = A._arrayInstanceType(_0_0)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(_0_0, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            _1_0 = callback.call$1(t5 == null ? t4._as(t5) : t5);
+            if (_1_0 != null)
+              return _1_0;
+          }
+        }
+      for (t1 = this._async_environment0$_importedModules, t1 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications); t1.moveNext$0();) {
+        _2_0 = callback.call$1(t1.__js_helper$_current);
+        if (_2_0 != null)
+          return _2_0;
+      }
+      for (t1 = this._async_environment0$_globalModules, t2 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications), t3 = type$.AsyncCallable_2, value = null, identity = null; t2.moveNext$0();) {
+        t4 = t2.__js_helper$_current;
+        valueInModule = callback.call$1(t4);
+        if (valueInModule == null)
+          continue;
+        identityFromModule = t3._is(valueInModule) ? valueInModule : t4.variableIdentity$1($name);
+        if (identityFromModule.$eq(0, identity))
+          continue;
+        if (value != null) {
+          t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          for (t3 = A.MapExtensions_get_pairs0(t1, type$.Module_AsyncCallable_2, type$.AstNode_2), t3 = t3.get$iterator(t3), t4 = "includes " + type; t3.moveNext$0();) {
+            t1 = t3.get$current(t3);
+            module = t1._0;
+            node = t1._1;
+            if (callback.call$1(module) != null)
+              t2.$indexSet(0, node.get$span(node), t4);
+          }
+          throw A.wrapException(A.MultiSpanSassScriptException$0("This " + type + string$.x20is_av, type + " use", t2));
+        }
+        identity = identityFromModule;
+        value = valueInModule;
+      }
+      return value;
+    },
+    _async_environment0$_fromOneModule$3($name, type, callback) {
+      return this._async_environment0$_fromOneModule$1$3($name, type, callback, type$.dynamic);
+    }
+  };
+  A.AsyncEnvironment__getVariableFromGlobalModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$variables().$index(0, this.name);
+    },
+    $signature: 303
+  };
+  A.AsyncEnvironment_setVariable_closure2.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._async_environment0$_lastVariableName = this.name;
+      return t1._async_environment0$_lastVariableIndex = 0;
+    },
+    $signature: 10
+  };
+  A.AsyncEnvironment_setVariable_closure3.prototype = {
+    call$1(module) {
+      return module.get$variables().containsKey$1(this.name) ? module : null;
+    },
+    $signature: 304
+  };
+  A.AsyncEnvironment_setVariable_closure4.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._async_environment0$_variableIndex$1(this.name);
+      return t2 == null ? t1._async_environment0$_variables.length - 1 : t2;
+    },
+    $signature: 10
+  };
+  A.AsyncEnvironment__getFunctionFromGlobalModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$functions(module).$index(0, this.name);
+    },
+    $signature: 256
+  };
+  A.AsyncEnvironment__getMixinFromGlobalModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$mixins().$index(0, this.name);
+    },
+    $signature: 256
+  };
+  A.AsyncEnvironment_toModule_closure0.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_AsyncCallable_2);
+    },
+    $signature: 255
+  };
+  A.AsyncEnvironment_toDummyModule_closure0.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_AsyncCallable_2);
+    },
+    $signature: 255
+  };
+  A._EnvironmentModule2.prototype = {
+    get$url(_) {
+      var t1 = this.css;
+      return t1.get$span(t1).file.url;
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      var t1, t2,
+        _0_0 = this._async_environment0$_modulesByVariable.$index(0, $name);
+      if (_0_0 != null) {
+        _0_0.setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      t1 = this._async_environment0$_environment;
+      t2 = t1._async_environment0$_variables;
+      if (!B.JSArray_methods.get$first(t2).containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$0("Undefined variable.", null));
+      J.$indexSet$ax(B.JSArray_methods.get$first(t2), $name, value);
+      J.$indexSet$ax(B.JSArray_methods.get$first(t1._async_environment0$_variableNodes), $name, nodeWithSpan);
+      return;
+    },
+    variableIdentity$1($name) {
+      var module = this._async_environment0$_modulesByVariable.$index(0, $name);
+      return module == null ? this : module.variableIdentity$1($name);
+    },
+    cloneCss$0() {
+      var _0_0, _this = this;
+      if (!_this.transitivelyContainsCss)
+        return _this;
+      _0_0 = A.cloneCssStylesheet0(_this.css, _this.extensionStore);
+      return A._EnvironmentModule$_2(_this._async_environment0$_environment, _0_0._0, _this.preModuleComments, _0_0._1, _this._async_environment0$_modulesByVariable, _this.variables, _this.variableNodes, _this.functions, _this.mixins, true, _this.transitivelyContainsExtensions);
+    },
+    toString$0(_) {
+      var t2,
+        t1 = this.css;
+      if (t1.get$span(t1).file.url == null)
+        t1 = "<unknown url>";
+      else {
+        t1 = t1.get$span(t1).file.url;
+        t2 = $.$get$context();
+        t1.toString;
+        t1 = t2.prettyUri$1(t1);
+      }
+      return t1;
+    },
+    $isModule1: 1,
+    get$upstream() {
+      return this.upstream;
+    },
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    },
+    get$extensionStore() {
+      return this.extensionStore;
+    },
+    get$css(receiver) {
+      return this.css;
+    },
+    get$preModuleComments() {
+      return this.preModuleComments;
+    },
+    get$transitivelyContainsCss() {
+      return this.transitivelyContainsCss;
+    },
+    get$transitivelyContainsExtensions() {
+      return this.transitivelyContainsExtensions;
+    }
+  };
+  A._EnvironmentModule__EnvironmentModule_closure17.prototype = {
+    call$1(module) {
+      return module.get$variables();
+    },
+    $signature: 307
+  };
+  A._EnvironmentModule__EnvironmentModule_closure18.prototype = {
+    call$1(module) {
+      return module.get$variableNodes();
+    },
+    $signature: 308
+  };
+  A._EnvironmentModule__EnvironmentModule_closure19.prototype = {
+    call$1(module) {
+      return module.get$functions(module);
+    },
+    $signature: 252
+  };
+  A._EnvironmentModule__EnvironmentModule_closure20.prototype = {
+    call$1(module) {
+      return module.get$mixins();
+    },
+    $signature: 252
+  };
+  A._EnvironmentModule__EnvironmentModule_closure21.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 114
+  };
+  A._EnvironmentModule__EnvironmentModule_closure22.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsExtensions();
+    },
+    $signature: 114
+  };
+  A._EvaluateVisitor2.prototype = {
+    _EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap2(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t2, metaModule, t3, _i, module, $function, t4, _this = this,
+        _s20_ = "$name, $module: null",
+        _s9_ = "sass:meta",
+        _s7_ = "$module",
+        t1 = type$.JSArray_AsyncBuiltInCallable_2,
+        metaFunctions = A._setArrayType([A.BuiltInCallable$function0("global-variable-exists", _s20_, new A._EvaluateVisitor_closure38(_this), _s9_), A.BuiltInCallable$function0("variable-exists", "$name", new A._EvaluateVisitor_closure39(_this), _s9_), A.BuiltInCallable$function0("function-exists", _s20_, new A._EvaluateVisitor_closure40(_this), _s9_), A.BuiltInCallable$function0("mixin-exists", _s20_, new A._EvaluateVisitor_closure41(_this), _s9_), A.BuiltInCallable$function0("content-exists", "", new A._EvaluateVisitor_closure42(_this), _s9_), A.BuiltInCallable$function0("module-variables", _s7_, new A._EvaluateVisitor_closure43(_this), _s9_), A.BuiltInCallable$function0("module-functions", _s7_, new A._EvaluateVisitor_closure44(_this), _s9_), A.BuiltInCallable$function0("module-mixins", _s7_, new A._EvaluateVisitor_closure45(_this), _s9_), A.BuiltInCallable$function0("get-function", "$name, $css: false, $module: null", new A._EvaluateVisitor_closure46(_this), _s9_), A.BuiltInCallable$function0("get-mixin", _s20_, new A._EvaluateVisitor_closure47(_this), _s9_), new A.AsyncBuiltInCallable0("call", A.ScssParser$0("@function call($function, $args...) {", null, _s9_).parseArgumentDeclaration$0(), new A._EvaluateVisitor_closure48(_this), false)], t1),
+        metaMixins = A._setArrayType([A.AsyncBuiltInCallable$mixin0("load-css", "$url, $with: null", new A._EvaluateVisitor_closure49(_this), false, _s9_), A.AsyncBuiltInCallable$mixin0("apply", "$mixin, $args...", new A._EvaluateVisitor_closure50(_this), true, _s9_)], t1);
+      t1 = type$.AsyncBuiltInCallable_2;
+      t2 = A.List_List$of($.$get$global6(), true, t1);
+      B.JSArray_methods.addAll$1(t2, $.$get$local0());
+      B.JSArray_methods.addAll$1(t2, metaFunctions);
+      metaModule = A.BuiltInModule$0("meta", t2, metaMixins, null, t1);
+      for (t1 = A.List_List$of($.$get$coreModules0(), true, type$.BuiltInModule_AsyncCallable_2), t1.push(metaModule), t2 = t1.length, t3 = _this._async_evaluate0$_builtInModules, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        module = t1[_i];
+        t3.$indexSet(0, module.url, module);
+      }
+      t1 = A._setArrayType([], type$.JSArray_AsyncCallable_2);
+      B.JSArray_methods.addAll$1(t1, functions);
+      B.JSArray_methods.addAll$1(t1, $.$get$globalFunctions0());
+      B.JSArray_methods.addAll$1(t1, metaFunctions);
+      for (t2 = t1.length, t3 = _this._async_evaluate0$_builtInFunctions, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        $function = t1[_i];
+        t4 = J.get$name$x($function);
+        t3.$indexSet(0, A.stringReplaceAllUnchecked(t4, "_", "-"), $function);
+      }
+    },
+    run$2(_, importer, node) {
+      return this.run$body$_EvaluateVisitor0(0, importer, node);
+    },
+    run$body$_EvaluateVisitor0(_, importer, node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, $async$exception;
+      var $async$run$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              t1 = type$.nullable_Object;
+              t1 = A.runZoned(new A._EvaluateVisitor_run_closure2($async$self, node, importer), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__evaluationContext, new A._EvaluationContext2($async$self, node)], t1, t1), type$.FutureOr_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2);
+              $async$goto = 7;
+              return A._asyncAwait(type$.Future_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2._is(t1) ? t1 : A._Future$value(t1, type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2), $async$run$2);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException0) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                A.throwWithTrace0(error.withLoadedUrls$1($async$self._async_evaluate0$_loadedUrls), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$run$2, $async$completer);
+    },
+    _async_evaluate0$_assertInModule$1$2(value, $name) {
+      if (value != null)
+        return value;
+      throw A.wrapException(A.StateError$("Can't access " + $name + " outside of a module."));
+    },
+    _async_evaluate0$_assertInModule$2(value, $name) {
+      return this._async_evaluate0$_assertInModule$1$2(value, $name, type$.dynamic);
+    },
+    _async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors) {
+      return this._loadModule$body$_EvaluateVisitor0(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors);
+    },
+    _async_evaluate0$_loadModule$5$configuration(url, stackFrame, nodeWithSpan, callback, configuration) {
+      return this._async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, configuration, false);
+    },
+    _async_evaluate0$_loadModule$4(url, stackFrame, nodeWithSpan, callback) {
+      return this._async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, null, false);
+    },
+    _loadModule$body$_EvaluateVisitor0(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, t2, t1, _0_0;
+      var $async$_async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              _0_0 = $async$self._async_evaluate0$_builtInModules.$index(0, url);
+              t1.builtInModule = null;
+              $async$goto = _0_0 != null ? 3 : 4;
+              break;
+            case 3:
+              // then
+              t1.builtInModule = _0_0;
+              if (configuration instanceof A.ExplicitConfiguration0) {
+                t1 = namesInErrors ? "Built-in module " + url.toString$0(0) + " can't be configured." : "Built-in modules can't be configured.";
+                t2 = configuration.nodeWithSpan;
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(t1, t2.get$span(t2)));
+              }
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate0$_addExceptionSpanAsync$1$2(nodeWithSpan, new A._EvaluateVisitor__loadModule_closure5(t1, callback), type$.void), $async$_async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors);
+            case 5:
+              // returning from await.
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_withStackFrame$1$3(stackFrame, nodeWithSpan, new A._EvaluateVisitor__loadModule_closure6($async$self, url, nodeWithSpan, baseUrl, namesInErrors, configuration, callback), type$.Null), $async$_async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors);
+            case 6:
+              // returning from await.
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors, $async$completer);
+    },
+    _async_evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, configuration, namesInErrors, nodeWithSpan) {
+      return this._execute$body$_EvaluateVisitor0(importer, stylesheet, configuration, namesInErrors, nodeWithSpan);
+    },
+    _async_evaluate0$_execute$2(importer, stylesheet) {
+      return this._async_evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, null, false, null);
+    },
+    _execute$body$_EvaluateVisitor0(importer, stylesheet, configuration, namesInErrors, nodeWithSpan) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Module_AsyncCallable_2),
+        $async$returnValue, $async$self = this, currentConfiguration, t2, t3, message, existingSpan, configurationSpan, environment, css, preModuleComments, extensionStore, module, url, t1, _0_0;
+      var $async$_async_evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              url = stylesheet.span.file.url;
+              t1 = $async$self._async_evaluate0$_modules;
+              _0_0 = t1.$index(0, url);
+              if (_0_0 != null) {
+                t1 = configuration == null;
+                currentConfiguration = t1 ? $async$self._async_evaluate0$_configuration : configuration;
+                t2 = $async$self._async_evaluate0$_moduleConfigurations.$index(0, url);
+                t3 = t2._configuration0$__originalConfiguration;
+                t2 = t3 == null ? t2 : t3;
+                t3 = currentConfiguration._configuration0$__originalConfiguration;
+                if (t2 !== (t3 == null ? currentConfiguration : t3) && currentConfiguration instanceof A.ExplicitConfiguration0) {
+                  if (namesInErrors) {
+                    t2 = $.$get$context();
+                    url.toString;
+                    message = t2.prettyUri$1(url) + string$.x20was_a;
+                  } else
+                    message = string$.This_mw;
+                  t2 = $async$self._async_evaluate0$_moduleNodes.$index(0, url);
+                  existingSpan = t2 == null ? null : t2.get$span(t2);
+                  if (t1) {
+                    t1 = currentConfiguration.nodeWithSpan;
+                    configurationSpan = t1.get$span(t1);
+                  } else
+                    configurationSpan = null;
+                  t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+                  if (existingSpan != null)
+                    t1.$indexSet(0, existingSpan, "original load");
+                  if (configurationSpan != null)
+                    t1.$indexSet(0, configurationSpan, "configuration");
+                  throw A.wrapException(t1.get$isEmpty(0) ? $async$self._async_evaluate0$_exception$1(message) : $async$self._async_evaluate0$_multiSpanException$3(message, "new load", t1));
+                }
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              environment = A.AsyncEnvironment$0();
+              css = A._Cell$();
+              preModuleComments = A._Cell$();
+              extensionStore = A.ExtensionStore$0();
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_withEnvironment$1$2(environment, new A._EvaluateVisitor__execute_closure2($async$self, importer, stylesheet, extensionStore, configuration, css, preModuleComments), type$.Null), $async$_async_evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan);
+            case 3:
+              // returning from await.
+              t2 = css._readLocal$0();
+              t3 = preModuleComments._readLocal$0();
+              module = environment.toModule$3(t2, t3 == null ? B.Map_empty15 : t3, extensionStore);
+              if (url != null) {
+                t1.$indexSet(0, url, module);
+                $async$self._async_evaluate0$_moduleConfigurations.$indexSet(0, url, $async$self._async_evaluate0$_configuration);
+                if (nodeWithSpan != null)
+                  $async$self._async_evaluate0$_moduleNodes.$indexSet(0, url, nodeWithSpan);
+              }
+              $async$returnValue = module;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan, $async$completer);
+    },
+    _async_evaluate0$_addOutOfOrderImports$0() {
+      var t1, t2, _this = this, _s5_ = "_root",
+        _s13_ = "_endOfImports",
+        _0_0 = _this._async_evaluate0$_outOfOrderImports;
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_).children;
+          break $label0$0;
+        }
+        t1 = _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_).children;
+        t1 = A.List_List$of(A.SubListIterable$(t1, 0, A.checkNotNullable(_this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__endOfImports, _s13_), "count", type$.int), t1.$ti._eval$1("ListBase.E")), true, type$.ModifiableCssNode_2);
+        B.JSArray_methods.addAll$1(t1, _0_0);
+        t2 = _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_).children;
+        B.JSArray_methods.addAll$1(t1, A.SubListIterable$(t2, _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__endOfImports, _s13_), null, t2.$ti._eval$1("ListBase.E")));
+        break $label0$0;
+      }
+      return t1;
+    },
+    _async_evaluate0$_combineCss$2$clone(root, clone) {
+      var selectors, _0_0, t1, imports, css, sorted, t2;
+      if (!B.JSArray_methods.any$1(root.get$upstream(), new A._EvaluateVisitor__combineCss_closure5())) {
+        selectors = root.get$extensionStore().get$simpleSelectors();
+        _0_0 = A.IterableExtension_get_firstOrNull(root.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__combineCss_closure6(selectors)));
+        if (_0_0 != null)
+          this._async_evaluate0$_throwForUnsatisfiedExtension$1(_0_0);
+        return root.get$css(root);
+      }
+      t1 = type$.JSArray_CssNode_2;
+      imports = A._setArrayType([], t1);
+      css = A._setArrayType([], t1);
+      t1 = type$.Module_AsyncCallable_2;
+      sorted = A.ListQueue$(t1);
+      new A._EvaluateVisitor__combineCss_visitModule2(this, A.LinkedHashSet_LinkedHashSet$_empty(t1), clone, css, imports, sorted).call$1(root);
+      if (root.get$transitivelyContainsExtensions())
+        this._async_evaluate0$_extendModules$1(sorted);
+      t1 = B.JSArray_methods.$add(imports, css);
+      t2 = root.get$css(root);
+      return new A.CssStylesheet0(new A.UnmodifiableListView(t1, type$.UnmodifiableListView_CssNode_2), t2.get$span(t2));
+    },
+    _async_evaluate0$_combineCss$1(root) {
+      return this._async_evaluate0$_combineCss$2$clone(root, false);
+    },
+    _async_evaluate0$_extendModules$1(sortedModules) {
+      var t1, t2, t3, originalSelectors, $self, t4, t5, _i, upstream, _0_0,
+        downstreamExtensionStores = A.LinkedHashMap_LinkedHashMap$_empty(type$.Uri, type$.List_ExtensionStore_2),
+        unsatisfiedExtensions = new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_Extension_2);
+      for (t1 = A._ListQueueIterator$(sortedModules, sortedModules.$ti._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        originalSelectors = t3.get$extensionStore().get$simpleSelectors().toSet$0(0);
+        unsatisfiedExtensions.addAll$1(0, t3.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__extendModules_closure5(originalSelectors)));
+        $self = downstreamExtensionStores.$index(0, t3.get$url(t3));
+        t4 = t3.get$extensionStore().get$addExtensions();
+        if ($self != null)
+          t4.call$1($self);
+        t4 = t3.get$extensionStore();
+        if (t4.get$isEmpty(t4))
+          continue;
+        for (t4 = t3.get$upstream(), t5 = t4.length, _i = 0; _i < t4.length; t4.length === t5 || (0, A.throwConcurrentModificationError)(t4), ++_i) {
+          upstream = t4[_i];
+          _0_0 = upstream.get$url(upstream);
+          if (_0_0 != null)
+            J.add$1$ax(downstreamExtensionStores.putIfAbsent$2(_0_0, new A._EvaluateVisitor__extendModules_closure6()), t3.get$extensionStore());
+        }
+        unsatisfiedExtensions.removeAll$1(t3.get$extensionStore().extensionsWhereTarget$1(originalSelectors.get$contains(originalSelectors)));
+      }
+      if (unsatisfiedExtensions._collection$_length !== 0)
+        this._async_evaluate0$_throwForUnsatisfiedExtension$1(unsatisfiedExtensions.get$first(0));
+    },
+    _async_evaluate0$_throwForUnsatisfiedExtension$1(extension) {
+      throw A.wrapException(A.SassException$0(string$.The_ta + extension.target.toString$0(0) + ' !optional" to avoid this error.', extension.span, null));
+    },
+    _async_evaluate0$_indexAfterImports$1(statements) {
+      var t1, lastImport, i, _0_0;
+      for (t1 = J.getInterceptor$asx(statements), lastImport = -1, i = 0; i < t1.get$length(statements); ++i) {
+        $label0$0: {
+          _0_0 = t1.$index(statements, i);
+          if (_0_0 instanceof A.ModifiableCssImport0)
+            break $label0$0;
+          if (_0_0 instanceof A.ModifiableCssComment0)
+            continue;
+          break;
+        }
+        lastImport = i;
+      }
+      return lastImport + 1;
+    },
+    visitStylesheet$1(node) {
+      return this.visitStylesheet$body$_EvaluateVisitor0(node);
+    },
+    visitStylesheet$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, _i;
+      var $async$visitStylesheet$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.children, t2 = t1.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t1[_i].accept$1($async$self), $async$visitStylesheet$1);
+            case 6:
+              // returning from await.
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitStylesheet$1, $async$completer);
+    },
+    visitAtRootRule$1(node) {
+      return this.visitAtRootRule$body$_EvaluateVisitor0(node);
+    },
+    visitAtRootRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, _1_0, resolved, query, $parent, included, t1, _2_0, root, first, rest, innerCopy, outerCopy, _i, copy, _0_0;
+      var $async$visitAtRootRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _0_0 = node.query;
+              $async$goto = _0_0 != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolationWithMap$2$warnForColor(_0_0, true), $async$visitAtRootRule$1);
+            case 6:
+              // returning from await.
+              _1_0 = $async$result;
+              resolved = _1_0._0;
+              _1_0._1;
+              query = A.AtRootQueryParser$0(resolved, $async$self._async_evaluate0$_logger, null).parse$0();
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              query = B.AtRootQuery_n2q0;
+            case 4:
+              // join
+              $parent = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent");
+              included = A._setArrayType([], type$.JSArray_ModifiableCssParentNode_2);
+              for (t1 = type$.CssStylesheet_2; !t1._is($parent); $parent = _2_0) {
+                if (!query.excludes$1($parent))
+                  included.push($parent);
+                _2_0 = $parent._node$_parent;
+                if (_2_0 == null)
+                  throw A.wrapException(A.StateError$(string$.CssNod));
+              }
+              root = $async$self._async_evaluate0$_trimIncluded$1(included);
+              $async$goto = root === $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") ? 7 : 8;
+              break;
+            case 7:
+              // then
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate0$_environment.scope$1$2$when(new A._EvaluateVisitor_visitAtRootRule_closure5($async$self, node), node.hasDeclarations, type$.Null), $async$visitAtRootRule$1);
+            case 9:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 8:
+              // join
+              if (included.length >= 1) {
+                first = included[0];
+                rest = B.JSArray_methods.sublist$1(included, 1);
+                innerCopy = first.copyWithoutChildren$0();
+                for (t1 = rest.length, outerCopy = innerCopy, _i = 0; _i < rest.length; rest.length === t1 || (0, A.throwConcurrentModificationError)(rest), ++_i, outerCopy = copy) {
+                  copy = rest[_i].copyWithoutChildren$0();
+                  copy.addChild$1(outerCopy);
+                }
+                root.addChild$1(outerCopy);
+              } else
+                innerCopy = root;
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate0$_scopeForAtRoot$4(node, innerCopy, query, included).call$1(new A._EvaluateVisitor_visitAtRootRule_closure6($async$self, node)), $async$visitAtRootRule$1);
+            case 10:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitAtRootRule$1, $async$completer);
+    },
+    _async_evaluate0$_trimIncluded$1(nodes) {
+      var $parent, t1, innermostContiguous, i, t2, _0_0, _1_0, root, _this = this, _null = null, _s5_ = "_root",
+        _s22_ = " to be an ancestor of ";
+      if (nodes.length === 0)
+        return _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_);
+      $parent = _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__parent, "__parent");
+      for (t1 = nodes.length, innermostContiguous = _null, i = 0; i < t1; ++i, $parent = _1_0) {
+        for (; t2 = nodes[i], $parent !== t2; innermostContiguous = _null, $parent = _0_0) {
+          _0_0 = $parent._node$_parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+        }
+        if (innermostContiguous == null)
+          innermostContiguous = i;
+        _1_0 = $parent._node$_parent;
+        if (_1_0 == null)
+          throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+      }
+      if ($parent !== _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_))
+        return _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_);
+      innermostContiguous.toString;
+      root = nodes[innermostContiguous];
+      B.JSArray_methods.removeRange$2(nodes, innermostContiguous, nodes.length);
+      return root;
+    },
+    _async_evaluate0$_scopeForAtRoot$4(node, newParent, query, included) {
+      var _this = this,
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure17(_this, newParent, node),
+        t1 = query._at_root_query0$_all || query._at_root_query0$_rule;
+      if (t1 !== query.include)
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure18(_this, scope);
+      if (_this._async_evaluate0$_mediaQueries != null && query.excludesName$1("media"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure19(_this, scope);
+      if (_this._async_evaluate0$_inKeyframes && query.excludesName$1("keyframes"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure20(_this, scope);
+      return _this._async_evaluate0$_inUnknownAtRule && !B.JSArray_methods.any$1(included, new A._EvaluateVisitor__scopeForAtRoot_closure21()) ? new A._EvaluateVisitor__scopeForAtRoot_closure22(_this, scope) : scope;
+    },
+    visitContentBlock$1(node) {
+      return A.throwExpression(A.UnsupportedError$(string$.Evalua));
+    },
+    visitContentRule$1(node) {
+      return this.visitContentRule$body$_EvaluateVisitor0(node);
+    },
+    visitContentRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, $content;
+      var $async$visitContentRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $content = $async$self._async_evaluate0$_environment._async_environment0$_content;
+              if ($content == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_runUserDefinedCallable$1$4(node.$arguments, $content, node, new A._EvaluateVisitor_visitContentRule_closure2($async$self, $content), type$.Null), $async$visitContentRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitContentRule$1, $async$completer);
+    },
+    visitDebugRule$1(node) {
+      return this.visitDebugRule$body$_EvaluateVisitor0(node);
+    },
+    visitDebugRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, value, t1;
+      var $async$visitDebugRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait(node.expression.accept$1($async$self), $async$visitDebugRule$1);
+            case 3:
+              // returning from await.
+              value = $async$result;
+              t1 = value instanceof A.SassString0 ? value._string0$_text : A.serializeValue0(value, true, true);
+              $async$self._async_evaluate0$_logger.debug$2(0, t1, node.span);
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitDebugRule$1, $async$completer);
+    },
+    visitDeclaration$1(node) {
+      return this.visitDeclaration$body$_EvaluateVisitor0(node);
+    },
+    visitDeclaration$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t2, $name, _0_0, _1_0, value, t3, t4, t5, _2_0, oldDeclarationName, t1;
+      var $async$visitDeclaration$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              if (($async$self._async_evaluate0$_atRootExcludingStyleRule ? null : $async$self._async_evaluate0$_styleRuleIgnoringAtRoot) == null && !$async$self._async_evaluate0$_inUnknownAtRule && !$async$self._async_evaluate0$_inKeyframes)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Declarm, node.span));
+              if ($async$self._async_evaluate0$_declarationName != null && B.JSString_methods.startsWith$1(node.name.get$initialPlain(), "--"))
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Declarw, node.span));
+              t2 = node.name;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_interpolationToValue$2$warnForColor(t2, true), $async$visitDeclaration$1);
+            case 3:
+              // returning from await.
+              $name = $async$result;
+              _0_0 = $async$self._async_evaluate0$_declarationName;
+              if (_0_0 != null)
+                $name = new A.CssValue0(_0_0 + "-" + A.S($name.value), $name.span, type$.CssValue_String_2);
+              _1_0 = node.value;
+              $async$goto = _1_0 != null ? 4 : 5;
+              break;
+            case 4:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait(_1_0.accept$1($async$self), $async$visitDeclaration$1);
+            case 6:
+              // returning from await.
+              value = $async$result;
+              if (!value.get$isBlank() || value.get$asList().length === 0) {
+                t3 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent");
+                t4 = _1_0.get$span(_1_0);
+                t2 = B.JSString_methods.startsWith$1(t2.get$initialPlain(), "--");
+                if ($async$self._async_evaluate0$_sourceMap) {
+                  t5 = A.NullableExtension_andThen0(_1_0, $async$self.get$_async_evaluate0$_expressionNode());
+                  t5 = t5 == null ? null : J.get$span$z(t5);
+                } else
+                  t5 = null;
+                t3.addChild$1(A.ModifiableCssDeclaration$0($name, new A.CssValue0(value, t4, type$.CssValue_Value_2), node.span, t2, t5));
+              } else if (J.startsWith$1$s($name.value, "--"))
+                throw A.wrapException($async$self._async_evaluate0$_exception$2("Custom property values may not be empty.", _1_0.get$span(_1_0)));
+            case 5:
+              // join
+              _2_0 = node.children;
+              t1.children = null;
+              $async$goto = _2_0 != null ? 7 : 8;
+              break;
+            case 7:
+              // then
+              t1.children = _2_0;
+              oldDeclarationName = $async$self._async_evaluate0$_declarationName;
+              $async$self._async_evaluate0$_declarationName = $name.value;
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate0$_environment.scope$1$2$when(new A._EvaluateVisitor_visitDeclaration_closure2(t1, $async$self), node.hasDeclarations, type$.Null), $async$visitDeclaration$1);
+            case 9:
+              // returning from await.
+              $async$self._async_evaluate0$_declarationName = oldDeclarationName;
+            case 8:
+              // join
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitDeclaration$1, $async$completer);
+    },
+    visitEachRule$1(node) {
+      return this.visitEachRule$body$_EvaluateVisitor0(node);
+    },
+    visitEachRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, _box_0, t1, list, nodeWithSpan, _0_0;
+      var $async$visitEachRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              t1 = node.list;
+              $async$goto = 3;
+              return A._asyncAwait(t1.accept$1($async$self), $async$visitEachRule$1);
+            case 3:
+              // returning from await.
+              list = $async$result;
+              nodeWithSpan = $async$self._async_evaluate0$_expressionNode$1(t1);
+              _0_0 = node.variables;
+              $label0$0: {
+                _box_0.variable = null;
+                if (_0_0.length === 1) {
+                  _box_0.variable = _0_0[0];
+                  t1 = new A._EvaluateVisitor_visitEachRule_closure8(_box_0, $async$self, nodeWithSpan);
+                  break $label0$0;
+                }
+                _box_0.variables = null;
+                _box_0.variables = _0_0;
+                t1 = new A._EvaluateVisitor_visitEachRule_closure9(_box_0, $async$self, nodeWithSpan);
+                break $label0$0;
+              }
+              $async$returnValue = $async$self._async_evaluate0$_environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitEachRule_closure10($async$self, list, t1, node), true, type$.nullable_Value_2);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitEachRule$1, $async$completer);
+    },
+    _async_evaluate0$_setMultipleVariables$3(variables, value, nodeWithSpan) {
+      var i,
+        list = value.get$asList(),
+        t1 = variables.length,
+        minLength = Math.min(t1, list.length);
+      for (i = 0; i < minLength; ++i)
+        this._async_evaluate0$_environment.setLocalVariable$3(variables[i], this._async_evaluate0$_withoutSlash$2(list[i], nodeWithSpan), nodeWithSpan);
+      for (i = minLength; i < t1; ++i)
+        this._async_evaluate0$_environment.setLocalVariable$3(variables[i], B.C__SassNull0, nodeWithSpan);
+    },
+    visitErrorRule$1(node) {
+      return this.visitErrorRule$body$_EvaluateVisitor0(node);
+    },
+    visitErrorRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$self = this, $async$temp1, $async$temp2;
+      var $async$visitErrorRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$temp2 = J;
+              $async$goto = 2;
+              return A._asyncAwait(node.expression.accept$1($async$self), $async$visitErrorRule$1);
+            case 2:
+              // returning from await.
+              throw $async$temp1.wrapException($async$self._async_evaluate0$_exception$2($async$temp2.toString$0$($async$result), node.span));
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitErrorRule$1, $async$completer);
+    },
+    visitExtendRule$1(node) {
+      return this.visitExtendRule$body$_EvaluateVisitor0(node);
+    },
+    visitExtendRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, t5, _i, complex, visitor, t6, t7, _0_0, targetText, targetMap, compound, styleRule;
+      var $async$visitExtendRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              styleRule = $async$self._async_evaluate0$_atRootExcludingStyleRule ? null : $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+              if (styleRule == null || $async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.x40exten, node.span));
+              for (t1 = styleRule.originalSelector.components, t2 = t1.length, t3 = node.span, t4 = type$.SourceSpan, t5 = type$.String, _i = 0; _i < t2; ++_i) {
+                complex = t1[_i];
+                if (!complex.accept$1(B._IsBogusVisitor_true0))
+                  continue;
+                visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+                complex.accept$1(visitor);
+                t6 = B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0));
+                t7 = complex.accept$1(B.C__IsUselessVisitor0) ? "can't" : "shouldn't";
+                $async$self._async_evaluate0$_warn$3('The selector "' + t6 + '" is invalid CSS and ' + t7 + string$.x20be_an, new A.MultiSpan0(A.SpanExtensions_trimRight0(complex.span), "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t3, "@extend rule"], t4, t5), t4, t5)), B.Deprecation_5pG);
+              }
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolationWithMap$2$warnForColor(node.selector, true), $async$visitExtendRule$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              targetText = _0_0._0;
+              targetMap = _0_0._1;
+              for (t1 = A.SelectorList_SelectorList$parse0(A.trimAscii0(targetText, true), false, targetMap, $async$self._async_evaluate0$_logger, false).components, t2 = t1.length, t3 = styleRule._style_rule0$_selector._box0$_inner, _i = 0; _i < t2; ++_i) {
+                complex = t1[_i];
+                compound = complex.get$singleCompound();
+                if (compound == null)
+                  throw A.wrapException(A.SassFormatException$0("complex selectors may not be extended.", complex.span, null));
+                t4 = compound.components;
+                t5 = t4.length === 1 ? B.JSArray_methods.get$first(t4) : null;
+                if (t5 == null)
+                  throw A.wrapException(A.SassFormatException$0(string$.compou + B.JSArray_methods.join$1(t4, ", ") + string$.x60_inst, compound.span, null));
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__extensionStore, "_extensionStore").addExtension$4(t3.value, t5, node, $async$self._async_evaluate0$_mediaQueries);
+              }
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitExtendRule$1, $async$completer);
+    },
+    visitAtRule$1(node) {
+      return this.visitAtRule$body$_EvaluateVisitor0(node);
+    },
+    visitAtRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, $name, t1, value, children, wasInKeyframes, wasInUnknownAtRule;
+      var $async$visitAtRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.At_rul, node.span));
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_interpolationToValue$1(node.name), $async$visitAtRule$1);
+            case 3:
+              // returning from await.
+              $name = $async$result;
+              t1 = A.NullableExtension_andThen0(node.value, new A._EvaluateVisitor_visitAtRule_closure8($async$self));
+              $async$goto = 4;
+              return A._asyncAwait(type$.Future_nullable_CssValue_String_2._is(t1) ? t1 : A._Future$value(t1, type$.nullable_CssValue_String_2), $async$visitAtRule$1);
+            case 4:
+              // returning from await.
+              value = $async$result;
+              children = node.children;
+              if (children == null) {
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").addChild$1(A.ModifiableCssAtRule$0($name, node.span, true, value));
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              wasInKeyframes = $async$self._async_evaluate0$_inKeyframes;
+              wasInUnknownAtRule = $async$self._async_evaluate0$_inUnknownAtRule;
+              if (A.unvendor0($name.value) === "keyframes")
+                $async$self._async_evaluate0$_inKeyframes = true;
+              else
+                $async$self._async_evaluate0$_inUnknownAtRule = true;
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$0($name, node.span, false, value), new A._EvaluateVisitor_visitAtRule_closure9($async$self, $name, children), node.hasDeclarations, new A._EvaluateVisitor_visitAtRule_closure10(), type$.ModifiableCssAtRule_2, type$.Null), $async$visitAtRule$1);
+            case 5:
+              // returning from await.
+              $async$self._async_evaluate0$_inUnknownAtRule = wasInUnknownAtRule;
+              $async$self._async_evaluate0$_inKeyframes = wasInKeyframes;
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitAtRule$1, $async$completer);
+    },
+    visitForRule$1(node) {
+      return this.visitForRule$body$_EvaluateVisitor0(node);
+    },
+    visitForRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, fromNumber, t4, toNumber, from, to, direction;
+      var $async$visitForRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              t2 = node.from;
+              t3 = type$.SassNumber_2;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_addExceptionSpanAsync$1$2(t2, new A._EvaluateVisitor_visitForRule_closure14($async$self, node), t3), $async$visitForRule$1);
+            case 3:
+              // returning from await.
+              fromNumber = $async$result;
+              t4 = node.to;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate0$_addExceptionSpanAsync$1$2(t4, new A._EvaluateVisitor_visitForRule_closure15($async$self, node), t3), $async$visitForRule$1);
+            case 4:
+              // returning from await.
+              toNumber = $async$result;
+              from = $async$self._async_evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor_visitForRule_closure16(fromNumber));
+              to = t1.to = $async$self._async_evaluate0$_addExceptionSpan$2(t4, new A._EvaluateVisitor_visitForRule_closure17(toNumber, fromNumber));
+              direction = from > to ? -1 : 1;
+              if (from === (!node.isExclusive ? t1.to = to + direction : to)) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$returnValue = $async$self._async_evaluate0$_environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitForRule_closure18(t1, $async$self, node, from, direction, fromNumber), true, type$.nullable_Value_2);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitForRule$1, $async$completer);
+    },
+    visitForwardRule$1(node) {
+      return this.visitForwardRule$body$_EvaluateVisitor0(node);
+    },
+    visitForwardRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, newConfiguration, t4, _i, variable, $name, oldConfiguration, adjustedConfiguration, t1, t2, t3;
+      var $async$visitForwardRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldConfiguration = $async$self._async_evaluate0$_configuration;
+              adjustedConfiguration = oldConfiguration.throughForward$1(node);
+              t1 = node.configuration;
+              t2 = t1.length;
+              t3 = node.url;
+              $async$goto = t2 !== 0 ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_addForwardConfiguration$2(adjustedConfiguration, node), $async$visitForwardRule$1);
+            case 6:
+              // returning from await.
+              newConfiguration = $async$result;
+              $async$goto = 7;
+              return A._asyncAwait($async$self._async_evaluate0$_loadModule$5$configuration(t3, "@forward", node, new A._EvaluateVisitor_visitForwardRule_closure5($async$self, node), newConfiguration), $async$visitForwardRule$1);
+            case 7:
+              // returning from await.
+              t3 = type$.String;
+              t4 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+              for (_i = 0; _i < t2; ++_i) {
+                variable = t1[_i];
+                if (!variable.isGuarded)
+                  t4.add$1(0, variable.name);
+              }
+              $async$self._async_evaluate0$_removeUsedConfiguration$3$except(adjustedConfiguration, newConfiguration, t4);
+              t3 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+              for (_i = 0; _i < t2; ++_i)
+                t3.add$1(0, t1[_i].name);
+              for (t1 = newConfiguration._configuration0$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t4 = t2.length, _i = 0; _i < t2.length; t2.length === t4 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+                $name = t2[_i];
+                if (!t3.contains$1(0, $name))
+                  if (!t1.get$isEmpty(t1))
+                    t1.remove$1(0, $name);
+              }
+              $async$self._async_evaluate0$_assertConfigurationIsEmpty$1(newConfiguration);
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$self._async_evaluate0$_configuration = adjustedConfiguration;
+              $async$goto = 8;
+              return A._asyncAwait($async$self._async_evaluate0$_loadModule$4(t3, "@forward", node, new A._EvaluateVisitor_visitForwardRule_closure6($async$self, node)), $async$visitForwardRule$1);
+            case 8:
+              // returning from await.
+              $async$self._async_evaluate0$_configuration = oldConfiguration;
+            case 4:
+              // join
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitForwardRule$1, $async$completer);
+    },
+    _async_evaluate0$_addForwardConfiguration$2(configuration, node) {
+      return this._addForwardConfiguration$body$_EvaluateVisitor0(configuration, node);
+    },
+    _addForwardConfiguration$body$_EvaluateVisitor0(configuration, node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Configuration_2),
+        $async$returnValue, $async$self = this, t2, t3, t4, t5, _i, variable, t6, oldValue, t7, variableNodeWithSpan, t8, t1, newValues, $async$temp1, $async$temp2, $async$temp3;
+      var $async$_async_evaluate0$_addForwardConfiguration$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = configuration._configuration0$_values;
+              newValues = A.LinkedHashMap_LinkedHashMap$of(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue_2), type$.String, type$.ConfiguredValue_2);
+              t2 = node.configuration, t3 = t2.length, t4 = type$._Future_Value_2, t5 = type$.Future_Value_2, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              variable = t2[_i];
+              if (variable.isGuarded) {
+                t6 = variable.name;
+                oldValue = t1.get$isEmpty(t1) ? null : t1.remove$1(0, t6);
+                if (oldValue != null)
+                  t7 = !oldValue.value.$eq(0, B.C__SassNull0);
+                else {
+                  oldValue = null;
+                  t7 = false;
+                }
+                if (t7) {
+                  newValues.$indexSet(0, t6, oldValue);
+                  // goto for update
+                  $async$goto = 4;
+                  break;
+                }
+              }
+              t6 = variable.expression;
+              variableNodeWithSpan = $async$self._async_evaluate0$_expressionNode$1(t6);
+              t7 = variable.name;
+              t6 = t6.accept$1($async$self);
+              if (!t5._is(t6)) {
+                t8 = new A._Future($.Zone__current, t4);
+                t8._state = 8;
+                t8._resultOrListeners = t6;
+                t6 = t8;
+              }
+              $async$temp1 = newValues;
+              $async$temp2 = t7;
+              $async$temp3 = A;
+              $async$goto = 6;
+              return A._asyncAwait(t6, $async$_async_evaluate0$_addForwardConfiguration$2);
+            case 6:
+              // returning from await.
+              $async$temp1.$indexSet(0, $async$temp2, new $async$temp3.ConfiguredValue0($async$self._async_evaluate0$_withoutSlash$2($async$result, variableNodeWithSpan), variable.span, variableNodeWithSpan));
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              if (configuration instanceof A.ExplicitConfiguration0 || t1.get$isEmpty(t1)) {
+                $async$returnValue = new A.ExplicitConfiguration0(node, newValues, null);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else {
+                $async$returnValue = new A.Configuration0(newValues, null);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_addForwardConfiguration$2, $async$completer);
+    },
+    _async_evaluate0$_registerCommentsForModule$1(module) {
+      var _this = this, _s5_ = "_root",
+        t1 = _this._async_evaluate0$__root;
+      if (t1 == null)
+        return;
+      if (_this._async_evaluate0$_assertInModule$2(t1, _s5_).children.get$length(0) === 0 || !module.get$transitivelyContainsCss())
+        return;
+      t1 = _this._async_evaluate0$_preModuleComments;
+      if (t1 == null)
+        t1 = _this._async_evaluate0$_preModuleComments = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_AsyncCallable_2, type$.List_CssComment_2);
+      J.addAll$1$ax(t1.putIfAbsent$2(module, new A._EvaluateVisitor__registerCommentsForModule_closure2()), new A.UnmodifiableListView(J.cast$1$0$ax(_this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_).children._collection$_source, type$.CssComment_2), type$.UnmodifiableListView_CssComment_2));
+      _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__root, _s5_).clearChildren$0();
+      _this._async_evaluate0$__endOfImports = 0;
+    },
+    _async_evaluate0$_removeUsedConfiguration$3$except(upstream, downstream, except) {
+      var t1, t2, t3, t4, _i, $name;
+      for (t1 = upstream._configuration0$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t3 = t2.length, t4 = downstream._configuration0$_values, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        $name = t2[_i];
+        if (except.contains$1(0, $name))
+          continue;
+        if (!t4.containsKey$1($name))
+          if (!t1.get$isEmpty(t1))
+            t1.remove$1(0, $name);
+      }
+    },
+    _async_evaluate0$_assertConfigurationIsEmpty$2$nameInError(configuration, nameInError) {
+      var t1, _0_0, $name, value;
+      if (!(configuration instanceof A.ExplicitConfiguration0))
+        return;
+      t1 = configuration._configuration0$_values;
+      if (t1.get$isEmpty(t1))
+        return;
+      t1 = A.MapExtensions_get_pairs0(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue_2), type$.String, type$.ConfiguredValue_2);
+      _0_0 = t1.get$first(t1);
+      $name = _0_0._0;
+      value = _0_0._1;
+      t1 = nameInError ? "$" + $name + string$.x20was_n : string$.This_v;
+      throw A.wrapException(this._async_evaluate0$_exception$2(t1, value.configurationSpan));
+    },
+    _async_evaluate0$_assertConfigurationIsEmpty$1(configuration) {
+      return this._async_evaluate0$_assertConfigurationIsEmpty$2$nameInError(configuration, false);
+    },
+    visitFunctionRule$1(node) {
+      return this.visitFunctionRule$body$_EvaluateVisitor0(node);
+    },
+    visitFunctionRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, index, t5;
+      var $async$visitFunctionRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate0$_environment;
+              t2 = t1.closure$0();
+              t3 = $async$self._async_evaluate0$_inDependency;
+              t4 = t1._async_environment0$_functions;
+              index = t4.length - 1;
+              t5 = node.name;
+              t1._async_environment0$_functionIndices.$indexSet(0, t5, index);
+              J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable0(node, t2, t3, type$.UserDefinedCallable_AsyncEnvironment_2));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitFunctionRule$1, $async$completer);
+    },
+    visitIfRule$1(node) {
+      return this.visitIfRule$body$_EvaluateVisitor0(node);
+    },
+    visitIfRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, _i, clauseToCheck, clause;
+      var $async$visitIfRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              clause = node.lastClause;
+              t1 = node.clauses, t2 = t1.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              clauseToCheck = t1[_i];
+              $async$goto = 6;
+              return A._asyncAwait(clauseToCheck.expression.accept$1($async$self), $async$visitIfRule$1);
+            case 6:
+              // returning from await.
+              if ($async$result.get$isTruthy()) {
+                clause = clauseToCheck;
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              t1 = A.NullableExtension_andThen0(clause, new A._EvaluateVisitor_visitIfRule_closure2($async$self));
+              $async$goto = 7;
+              return A._asyncAwait(type$.Future_nullable_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.nullable_Value_2), $async$visitIfRule$1);
+            case 7:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitIfRule$1, $async$completer);
+    },
+    visitImportRule$1(node) {
+      return this.visitImportRule$body$_EvaluateVisitor0(node);
+    },
+    visitImportRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, _i, $import;
+      var $async$visitImportRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.imports, t2 = t1.length, t3 = type$.StaticImport_2, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $import = t1[_i];
+              $async$goto = $import instanceof A.DynamicImport0 ? 6 : 8;
+              break;
+            case 6:
+              // then
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate0$_visitDynamicImport$1($import), $async$visitImportRule$1);
+            case 9:
+              // returning from await.
+              // goto join
+              $async$goto = 7;
+              break;
+            case 8:
+              // else
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate0$_visitStaticImport$1(t3._as($import)), $async$visitImportRule$1);
+            case 10:
+              // returning from await.
+            case 7:
+              // join
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitImportRule$1, $async$completer);
+    },
+    _async_evaluate0$_visitDynamicImport$1($import) {
+      return this._async_evaluate0$_withStackFrame$1$3("@import", $import, new A._EvaluateVisitor__visitDynamicImport_closure2(this, $import), type$.void);
+    },
+    _async_evaluate0$_loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, forImport) {
+      return this._loadStylesheet$body$_EvaluateVisitor0(url, span, baseUrl, forImport);
+    },
+    _async_evaluate0$_loadStylesheet$3$baseUrl(url, span, baseUrl) {
+      return this._async_evaluate0$_loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, false);
+    },
+    _async_evaluate0$_loadStylesheet$3$forImport(url, span, forImport) {
+      return this._async_evaluate0$_loadStylesheet$4$baseUrl$forImport(url, span, null, forImport);
+    },
+    _loadStylesheet$body$_EvaluateVisitor0(url, span, baseUrl, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_3_Stylesheet_and_nullable_AsyncImporter_importer_and_bool_isDependency_2),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, _0_0, importCache, _1_0, importer, canonicalUrl, originalUrl, isDependency, _2_0, stylesheet, _3_0, result, error, stackTrace, error0, stackTrace0, message, t1, t2, t3, t4, exception, message0, $async$exception;
+      var $async$_async_evaluate0$_loadStylesheet$4$baseUrl$forImport = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              baseUrl = baseUrl;
+              $async$handler = 4;
+              $async$self._async_evaluate0$_importSpan = span;
+              _0_0 = $async$self._async_evaluate0$_importCache;
+              importCache = null;
+              $async$goto = _0_0 != null ? 7 : 8;
+              break;
+            case 7:
+              // then
+              importCache = _0_0;
+              if (baseUrl == null)
+                baseUrl = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").span.file.url;
+              $async$goto = 9;
+              return A._asyncAwait(J.canonicalize$4$baseImporter$baseUrl$forImport$x(importCache, A.Uri_parse(url), $async$self._async_evaluate0$_importer, baseUrl, forImport), $async$_async_evaluate0$_loadStylesheet$4$baseUrl$forImport);
+            case 9:
+              // returning from await.
+              _1_0 = $async$result;
+              importer = null;
+              canonicalUrl = null;
+              originalUrl = null;
+              $async$goto = type$.Record_3_nullable_Object_and_nullable_Object_and_nullable_Object_originalUrl._is(_1_0) ? 10 : 11;
+              break;
+            case 10:
+              // then
+              importer = _1_0._0;
+              canonicalUrl = _1_0._1;
+              originalUrl = _1_0._2;
+              $async$self._async_evaluate0$_loadedUrls.add$1(0, canonicalUrl);
+              isDependency = $async$self._async_evaluate0$_inDependency || !J.$eq$(importer, $async$self._async_evaluate0$_importer);
+              t1 = importCache;
+              t2 = importer;
+              t3 = canonicalUrl;
+              t4 = originalUrl;
+              $async$goto = 12;
+              return A._asyncAwait(t1.importCanonical$4$originalUrl$quiet(t2, t3, t4, $async$self._async_evaluate0$_quietDeps && isDependency), $async$_async_evaluate0$_loadStylesheet$4$baseUrl$forImport);
+            case 12:
+              // returning from await.
+              _2_0 = $async$result;
+              stylesheet = null;
+              if (_2_0 != null) {
+                stylesheet = _2_0;
+                t1 = stylesheet;
+                t2 = importer;
+                $async$returnValue = new A._Record_3_importer_isDependency(t1, t2, isDependency);
+                $async$next = [1];
+                // goto finally
+                $async$goto = 5;
+                break;
+              }
+            case 11:
+              // join
+            case 8:
+              // join
+              $async$goto = $async$self._async_evaluate0$_nodeImporter != null ? 13 : 14;
+              break;
+            case 13:
+              // then
+              t1 = baseUrl;
+              $async$goto = 15;
+              return A._asyncAwait($async$self._async_evaluate0$_importLikeNode$3(url, t1 == null ? $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").span.file.url : t1, forImport), $async$_async_evaluate0$_loadStylesheet$4$baseUrl$forImport);
+            case 15:
+              // returning from await.
+              _3_0 = $async$result;
+              result = null;
+              if (_3_0 != null) {
+                result = _3_0;
+                t1 = $async$self._async_evaluate0$_loadedUrls;
+                A.NullableExtension_andThen0(result._0.span.file.url, t1.get$add(t1));
+                t1 = result;
+                $async$returnValue = t1;
+                $async$next = [1];
+                // goto finally
+                $async$goto = 5;
+                break;
+              }
+            case 14:
+              // join
+              t1 = B.JSString_methods.startsWith$1(url, "package:");
+              if (t1)
+                throw A.wrapException(string$.x22packa);
+              else
+                throw A.wrapException("Can't find stylesheet to import.");
+              $async$next.push(6);
+              // goto finally
+              $async$goto = 5;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException0)
+                throw $async$exception;
+              else if (t1 instanceof A.ArgumentError) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                A.throwWithTrace0($async$self._async_evaluate0$_exception$1(J.toString$0$(error)), error, stackTrace);
+              } else {
+                error0 = t1;
+                stackTrace0 = A.getTraceFromException($async$exception);
+                message = null;
+                try {
+                  message = A._asString(J.get$message$x(error0));
+                } catch (exception) {
+                  message0 = J.toString$0$(error0);
+                  message = message0;
+                }
+                A.throwWithTrace0($async$self._async_evaluate0$_exception$1(message), error0, stackTrace0);
+              }
+              $async$next.push(6);
+              // goto finally
+              $async$goto = 5;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [2];
+            case 5:
+              // finally
+              $async$handler = 2;
+              $async$self._async_evaluate0$_importSpan = null;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_loadStylesheet$4$baseUrl$forImport, $async$completer);
+    },
+    _async_evaluate0$_importLikeNode$3(originalUrl, previous, forImport) {
+      return this._importLikeNode$body$_EvaluateVisitor(originalUrl, previous, forImport);
+    },
+    _importLikeNode$body$_EvaluateVisitor(originalUrl, previous, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_3_Stylesheet_and_nullable_AsyncImporter_importer_and_bool_isDependency),
+        $async$returnValue, $async$self = this, isDependency, url, t2, t1, result;
+      var $async$_async_evaluate0$_importLikeNode$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate0$_nodeImporter;
+              result = t1.loadRelative$3(originalUrl, previous, forImport);
+              $async$goto = result != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              isDependency = $async$self._async_evaluate0$_inDependency;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$goto = 6;
+              return A._asyncAwait(t1.loadAsync$3(originalUrl, previous, forImport), $async$_async_evaluate0$_importLikeNode$3);
+            case 6:
+              // returning from await.
+              result = $async$result;
+              if (result == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              isDependency = true;
+            case 4:
+              // join
+              url = result._1;
+              t1 = B.JSString_methods.startsWith$1(url, "file") ? A.Syntax_forPath0(url) : B.Syntax_SCSS_scss0;
+              t2 = $async$self._async_evaluate0$_quietDeps && isDependency ? $.$get$Logger_quiet0() : $async$self._async_evaluate0$_logger;
+              $async$returnValue = new A._Record_3_importer_isDependency(A.Stylesheet_Stylesheet$parse0(result._0, t1, t2, url), null, isDependency);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_importLikeNode$3, $async$completer);
+    },
+    _async_evaluate0$_visitStaticImport$1($import) {
+      return this._visitStaticImport$body$_EvaluateVisitor0($import);
+    },
+    _visitStaticImport$body$_EvaluateVisitor0($import) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, t2, node, $async$temp1, $async$temp2;
+      var $async$_async_evaluate0$_visitStaticImport$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate0$_interpolationToValue$1($import.url), $async$_async_evaluate0$_visitStaticImport$1);
+            case 2:
+              // returning from await.
+              t1 = $async$result;
+              t2 = A.NullableExtension_andThen0($import.modifiers, $async$self.get$_async_evaluate0$_interpolationToValue());
+              $async$temp1 = A;
+              $async$temp2 = t1;
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_nullable_CssValue_String_2._is(t2) ? t2 : A._Future$value(t2, type$.nullable_CssValue_String_2), $async$_async_evaluate0$_visitStaticImport$1);
+            case 3:
+              // returning from await.
+              node = new $async$temp1.ModifiableCssImport0($async$temp2, $async$result, $import.span);
+              if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") !== $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root"))
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").addChild$1(node);
+              else if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root").children._collection$_source)) {
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root").addChild$1(node);
+                $async$self._async_evaluate0$__endOfImports = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") + 1;
+              } else {
+                t1 = $async$self._async_evaluate0$_outOfOrderImports;
+                (t1 == null ? $async$self._async_evaluate0$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport_2) : t1).push(node);
+              }
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_visitStaticImport$1, $async$completer);
+    },
+    _async_evaluate0$_applyMixin$5(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent) {
+      return this._applyMixin$body$_EvaluateVisitor0(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent);
+    },
+    _applyMixin$body$_EvaluateVisitor0(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, _0_0, _1_8, t2;
+      var $async$_async_evaluate0$_applyMixin$5 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (mixin == null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2("Undefined mixin.", nodeWithSpan.get$span(nodeWithSpan)));
+              t1 = type$.AsyncBuiltInCallable_2._is(mixin);
+              $async$goto = t1 && !mixin.get$acceptsContent() && contentCallable != null ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate0$_evaluateArguments$1($arguments), $async$_async_evaluate0$_applyMixin$5);
+            case 5:
+              // returning from await.
+              t1 = $async$result._values;
+              _0_0 = mixin.callbackFor$2(J.get$length$asx(t1[2]), new A.MapKeySet(t1[0], type$.MapKeySet_String));
+              throw A.wrapException(A.MultiSpanSassRuntimeException$0("Mixin doesn't accept a content block.", nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([_0_0._0.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), $async$self._async_evaluate0$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+            case 4:
+              // join
+              $async$goto = t1 ? 6 : 7;
+              break;
+            case 6:
+              // then
+              $async$goto = 8;
+              return A._asyncAwait($async$self._async_evaluate0$_environment.withContent$2(contentCallable, new A._EvaluateVisitor__applyMixin_closure5($async$self, $arguments, mixin, nodeWithSpanWithoutContent)), $async$_async_evaluate0$_applyMixin$5);
+            case 8:
+              // returning from await.
+              // goto break $label0$0
+              $async$goto = 2;
+              break;
+            case 7:
+              // join
+              t1 = type$.UserDefinedCallable_AsyncEnvironment_2._is(mixin);
+              if (t1) {
+                _1_8 = mixin.declaration;
+                if (_1_8 instanceof A.MixinRule0)
+                  t2 = !type$.MixinRule_2._as(_1_8).get$hasContent() && contentCallable != null;
+                else
+                  t2 = false;
+              } else
+                t2 = false;
+              if (t2)
+                throw A.wrapException(A.MultiSpanSassRuntimeException$0("Mixin doesn't accept a content block.", nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([mixin.declaration.$arguments.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), $async$self._async_evaluate0$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+              $async$goto = t1 ? 9 : 10;
+              break;
+            case 9:
+              // then
+              $async$goto = 11;
+              return A._asyncAwait($async$self._async_evaluate0$_runUserDefinedCallable$1$4($arguments, mixin, nodeWithSpanWithoutContent, new A._EvaluateVisitor__applyMixin_closure6($async$self, contentCallable, mixin, nodeWithSpanWithoutContent), type$.Null), $async$_async_evaluate0$_applyMixin$5);
+            case 11:
+              // returning from await.
+              // goto break $label0$0
+              $async$goto = 2;
+              break;
+            case 10:
+              // join
+              throw A.wrapException(A.UnsupportedError$("Unknown callable type " + mixin.toString$0(0) + "."));
+            case 2:
+              // break $label0$0
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_applyMixin$5, $async$completer);
+    },
+    visitIncludeRule$1(node) {
+      return this.visitIncludeRule$body$_EvaluateVisitor0(node);
+    },
+    visitIncludeRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, mixin;
+      var $async$visitIncludeRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              mixin = $async$self._async_evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitIncludeRule_closure8($async$self, node));
+              if (B.JSString_methods.startsWith$1(node.originalName, "--") && mixin instanceof A.UserDefinedCallable0 && !B.JSString_methods.startsWith$1(mixin.declaration.originalName, "--"))
+                $async$self._async_evaluate0$_warn$3(string$.Sass__m, node.get$nameSpan(), B.Deprecation_qBS);
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_applyMixin$5(mixin, A.NullableExtension_andThen0(node.content, new A._EvaluateVisitor_visitIncludeRule_closure9($async$self)), node.$arguments, node, new A._FakeAstNode0(new A._EvaluateVisitor_visitIncludeRule_closure10(node))), $async$visitIncludeRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitIncludeRule$1, $async$completer);
+    },
+    visitMixinRule$1(node) {
+      return this.visitMixinRule$body$_EvaluateVisitor0(node);
+    },
+    visitMixinRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, index, t5;
+      var $async$visitMixinRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate0$_environment;
+              t2 = t1.closure$0();
+              t3 = $async$self._async_evaluate0$_inDependency;
+              t4 = t1._async_environment0$_mixins;
+              index = t4.length - 1;
+              t5 = node.name;
+              t1._async_environment0$_mixinIndices.$indexSet(0, t5, index);
+              J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable0(node, t2, t3, type$.UserDefinedCallable_AsyncEnvironment_2));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitMixinRule$1, $async$completer);
+    },
+    visitLoudComment$1(node) {
+      return this.visitLoudComment$body$_EvaluateVisitor0(node);
+    },
+    visitLoudComment$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, $async$temp1, $async$temp2;
+      var $async$visitLoudComment$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_inFunction) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") === $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root") && $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root").children._collection$_source))
+                $async$self._async_evaluate0$__endOfImports = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") + 1;
+              t1 = node.text;
+              $async$temp1 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent");
+              $async$temp2 = A;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$1(t1), $async$visitLoudComment$1);
+            case 3:
+              // returning from await.
+              $async$temp1.addChild$1(new $async$temp2.ModifiableCssComment0($async$result, t1.span));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitLoudComment$1, $async$completer);
+    },
+    visitMediaRule$1(node) {
+      return this.visitMediaRule$body$_EvaluateVisitor0(node);
+    },
+    visitMediaRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, queries, mergedQueries, t1, mergedSources, t2, t3;
+      var $async$visitMediaRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Media_, node.span));
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_visitMediaQueries$1(node.query), $async$visitMediaRule$1);
+            case 3:
+              // returning from await.
+              queries = $async$result;
+              mergedQueries = A.NullableExtension_andThen0($async$self._async_evaluate0$_mediaQueries, new A._EvaluateVisitor_visitMediaRule_closure8($async$self, queries));
+              t1 = mergedQueries == null;
+              if (!t1 && J.get$isEmpty$asx(mergedQueries)) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (t1)
+                mergedSources = B.Set_empty5;
+              else {
+                t2 = $async$self._async_evaluate0$_mediaQuerySources;
+                t2.toString;
+                t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery_2);
+                t3 = $async$self._async_evaluate0$_mediaQueries;
+                t3.toString;
+                t2.addAll$1(0, t3);
+                t2.addAll$1(0, queries);
+                mergedSources = t2;
+              }
+              t1 = t1 ? queries : mergedQueries;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$0(t1, node.span), new A._EvaluateVisitor_visitMediaRule_closure9($async$self, mergedQueries, queries, mergedSources, node), node.hasDeclarations, new A._EvaluateVisitor_visitMediaRule_closure10(mergedSources), type$.ModifiableCssMediaRule_2, type$.Null), $async$visitMediaRule$1);
+            case 4:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitMediaRule$1, $async$completer);
+    },
+    _async_evaluate0$_visitMediaQueries$1(interpolation) {
+      return this._visitMediaQueries$body$_EvaluateVisitor0(interpolation);
+    },
+    _visitMediaQueries$body$_EvaluateVisitor0(interpolation) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.List_CssMediaQuery_2),
+        $async$returnValue, $async$self = this, _0_0;
+      var $async$_async_evaluate0$_visitMediaQueries$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolationWithMap$2$warnForColor(interpolation, true), $async$_async_evaluate0$_visitMediaQueries$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              $async$returnValue = A.CssMediaQuery_parseList0(_0_0._0, _0_0._1, $async$self._async_evaluate0$_logger);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_visitMediaQueries$1, $async$completer);
+    },
+    _async_evaluate0$_mergeMediaQueries$2(queries1, queries2) {
+      var t1, t2, t3, t4, _0_0, t5, result,
+        queries = A._setArrayType([], type$.JSArray_CssMediaQuery_2);
+      for (t1 = J.get$iterator$ax(queries1), t2 = J.getInterceptor$ax(queries2); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        for (t4 = t2.get$iterator(queries2); t4.moveNext$0();)
+          $label0$1: {
+            _0_0 = t3.merge$1(t4.get$current(t4));
+            if (B._SingletonCssMediaQueryMergeResult_00 === _0_0)
+              continue;
+            if (B._SingletonCssMediaQueryMergeResult_10 === _0_0)
+              return null;
+            t5 = _0_0 instanceof A.MediaQuerySuccessfulMergeResult0;
+            result = t5 ? _0_0 : null;
+            if (t5)
+              queries.push(result.query);
+            break $label0$1;
+          }
+      }
+      return queries;
+    },
+    visitReturnRule$1(node) {
+      return this.visitReturnRule$body$_EvaluateVisitor0(node);
+    },
+    visitReturnRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t1, t2;
+      var $async$visitReturnRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.expression;
+              t2 = t1.accept$1($async$self);
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_Value_2._is(t2) ? t2 : A._Future$value(t2, type$.Value_2), $async$visitReturnRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate0$_withoutSlash$2($async$result, t1);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitReturnRule$1, $async$completer);
+    },
+    visitSilentComment$1(node) {
+      return this.visitSilentComment$body$_EvaluateVisitor0(node);
+    },
+    visitSilentComment$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue;
+      var $async$visitSilentComment$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSilentComment$1, $async$completer);
+    },
+    visitStyleRule$1(node) {
+      return this.visitStyleRule$body$_EvaluateVisitor0(node);
+    },
+    visitStyleRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, _0_0, selectorText, selectorMap, parsedSelector, nest, t2, _i, _1_0, first, t3, rule, oldAtRootExcludingStyleRule, t4, t5, complex, visitor, t6, t7, t8, t9;
+      var $async$visitStyleRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Style_n, node.span));
+              else if ($async$self._async_evaluate0$_inKeyframes && $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") instanceof A.ModifiableCssKeyframeBlock0)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Style_k, node.span));
+              t1 = node.selector;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolationWithMap$2$warnForColor(t1, true), $async$visitStyleRule$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              selectorText = _0_0._0;
+              selectorMap = _0_0._1;
+              $async$goto = $async$self._async_evaluate0$_inKeyframes ? 4 : 5;
+              break;
+            case 4:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$0(new A.CssValue0(A.List_List$unmodifiable(A.KeyframeSelectorParser$0(selectorText, selectorMap, $async$self._async_evaluate0$_logger).parse$0(), type$.String), t1.span, type$.CssValue_List_String_2), node.span), new A._EvaluateVisitor_visitStyleRule_closure14($async$self, node), node.hasDeclarations, new A._EvaluateVisitor_visitStyleRule_closure15(), type$.ModifiableCssKeyframeBlock_2, type$.Null), $async$visitStyleRule$1);
+            case 6:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 5:
+              // join
+              parsedSelector = A.SelectorList_SelectorList$parse0(selectorText, true, selectorMap, $async$self._async_evaluate0$_logger, $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss);
+              t1 = $async$self._async_evaluate0$_atRootExcludingStyleRule ? null : $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+              t1 = t1 == null ? null : t1.fromPlainCss;
+              nest = t1 !== true;
+              if (nest) {
+                if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss)
+                  for (t1 = parsedSelector.components, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+                    _1_0 = t1[_i].leadingCombinators;
+                    if (_1_0.length >= 1) {
+                      first = _1_0[0];
+                      t3 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet");
+                      t3 = t3.plainCss;
+                    } else {
+                      first = null;
+                      t3 = false;
+                    }
+                    if (t3)
+                      throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Top_lel, first.span));
+                  }
+                t1 = $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+                t1 = t1 == null ? null : t1.originalSelector;
+                parsedSelector = parsedSelector.nestWithin$3$implicitParent$preserveParentSelectors(t1, !$async$self._async_evaluate0$_atRootExcludingStyleRule, $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss);
+              }
+              rule = A.ModifiableCssStyleRule$0($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__extensionStore, "_extensionStore").addSelector$2(parsedSelector, $async$self._async_evaluate0$_mediaQueries), node.span, $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss, parsedSelector);
+              oldAtRootExcludingStyleRule = $async$self._async_evaluate0$_atRootExcludingStyleRule;
+              $async$self._async_evaluate0$_atRootExcludingStyleRule = false;
+              t1 = nest ? new A._EvaluateVisitor_visitStyleRule_closure16() : null;
+              $async$goto = 7;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitStyleRule_closure17($async$self, rule, node), node.hasDeclarations, t1, type$.ModifiableCssStyleRule_2, type$.Null), $async$visitStyleRule$1);
+            case 7:
+              // returning from await.
+              $async$self._async_evaluate0$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+              if (!rule.accept$1(B._IsInvisibleVisitor_false_false0))
+                for (t1 = parsedSelector.components, t2 = t1.length, t3 = type$.SourceSpan, t4 = type$.String, t5 = rule.children, _i = 0; _i < t2; ++_i) {
+                  complex = t1[_i];
+                  if (!complex.accept$1(B._IsBogusVisitor_true0))
+                    continue;
+                  if (complex.accept$1(B.C__IsUselessVisitor0)) {
+                    visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+                    complex.accept$1(visitor);
+                    $async$self._async_evaluate0$_warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0)) + string$.x22x20is_ix20, A.SpanExtensions_trimRight0(complex.span), B.Deprecation_5pG);
+                  } else if (complex.leadingCombinators.length !== 0) {
+                    if (!$async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss) {
+                      visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+                      complex.accept$1(visitor);
+                      $async$self._async_evaluate0$_warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0)) + string$.x22x20is_ix0a, A.SpanExtensions_trimRight0(complex.span), B.Deprecation_5pG);
+                    }
+                  } else {
+                    visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+                    complex.accept$1(visitor);
+                    t6 = B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0));
+                    t7 = complex.accept$1(B._IsBogusVisitor_false0) ? string$.x20It_wi : "";
+                    t8 = A.SpanExtensions_trimRight0(complex.span);
+                    if (t5.get$length(0) === 0)
+                      A.throwExpression(A.IterableElementError_noElement());
+                    t9 = J.get$span$z(t5.$index(0, 0));
+                    $async$self._async_evaluate0$_warn$3('The selector "' + t6 + string$.x22x20is_o + t7 + string$.x0aThis_, new A.MultiSpan0(t8, "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t9, "this is not a style rule" + (t5.every$1(t5, new A._EvaluateVisitor_visitStyleRule_closure18()) ? "\n(try converting to a //-style comment)" : "")], t3, t4), t3, t4)), B.Deprecation_5pG);
+                  }
+                }
+              if (($async$self._async_evaluate0$_atRootExcludingStyleRule ? null : $async$self._async_evaluate0$_styleRuleIgnoringAtRoot) == null) {
+                t1 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").children;
+                t1 = !t1.get$isEmpty(t1);
+              } else
+                t1 = false;
+              if (t1) {
+                t1 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").children;
+                t1.get$last(t1).isGroupEnd = true;
+              }
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitStyleRule$1, $async$completer);
+    },
+    visitSupportsRule$1(node) {
+      return this.visitSupportsRule$body$_EvaluateVisitor0(node);
+    },
+    visitSupportsRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, $async$temp1, $async$temp2;
+      var $async$visitSupportsRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Suppor, node.span));
+              t1 = node.condition;
+              $async$temp1 = A;
+              $async$temp2 = A;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate0$_visitSupportsCondition$1(t1), $async$visitSupportsRule$1);
+            case 4:
+              // returning from await.
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through($async$temp1.ModifiableCssSupportsRule$0(new $async$temp2.CssValue0($async$result, t1.get$span(t1), type$.CssValue_String_2), node.span), new A._EvaluateVisitor_visitSupportsRule_closure5($async$self, node), node.hasDeclarations, new A._EvaluateVisitor_visitSupportsRule_closure6(), type$.ModifiableCssSupportsRule_2, type$.Null), $async$visitSupportsRule$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSupportsRule$1, $async$completer);
+    },
+    _async_evaluate0$_visitSupportsCondition$1(condition) {
+      return this._visitSupportsCondition$body$_EvaluateVisitor0(condition);
+    },
+    _visitSupportsCondition$body$_EvaluateVisitor0(condition) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1, _box_0, $async$temp1, $async$temp2;
+      var $async$_async_evaluate0$_visitSupportsCondition$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              $async$goto = condition instanceof A.SupportsOperation0 ? 4 : 5;
+              break;
+            case 4:
+              // then
+              t1 = condition.operator;
+              $async$temp1 = A;
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_parenthesize$2(condition.left, t1), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 6:
+              // returning from await.
+              $async$temp1 = $async$temp1.S($async$result) + " " + t1 + " ";
+              $async$temp2 = A;
+              $async$goto = 7;
+              return A._asyncAwait($async$self._async_evaluate0$_parenthesize$2(condition.right, t1), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 7:
+              // returning from await.
+              t1 = $async$temp1 + $async$temp2.S($async$result);
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 5:
+              // join
+              $async$goto = condition instanceof A.SupportsNegation0 ? 8 : 9;
+              break;
+            case 8:
+              // then
+              $async$temp1 = A;
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate0$_parenthesize$1(condition.condition), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 10:
+              // returning from await.
+              t1 = "not " + $async$temp1.S($async$result);
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 9:
+              // join
+              $async$goto = condition instanceof A.SupportsInterpolation0 ? 11 : 12;
+              break;
+            case 11:
+              // then
+              $async$goto = 13;
+              return A._asyncAwait($async$self._async_evaluate0$_evaluateToCss$2$quote(condition.expression, false), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 13:
+              // returning from await.
+              t1 = $async$result;
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 12:
+              // join
+              _box_0.declaration = null;
+              $async$goto = condition instanceof A.SupportsDeclaration0 ? 14 : 15;
+              break;
+            case 14:
+              // then
+              _box_0.declaration = condition;
+              $async$goto = 16;
+              return A._asyncAwait($async$self._async_evaluate0$_withSupportsDeclaration$1$1(new A._EvaluateVisitor__visitSupportsCondition_closure2(_box_0, $async$self), type$.String), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 16:
+              // returning from await.
+              t1 = $async$result;
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 15:
+              // join
+              $async$goto = condition instanceof A.SupportsFunction0 ? 17 : 18;
+              break;
+            case 17:
+              // then
+              $async$temp1 = A;
+              $async$goto = 19;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$1(condition.name), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 19:
+              // returning from await.
+              $async$temp1 = $async$temp1.S($async$result) + "(";
+              $async$temp2 = A;
+              $async$goto = 20;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$1(condition.$arguments), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 20:
+              // returning from await.
+              t1 = $async$temp1 + $async$temp2.S($async$result) + ")";
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 18:
+              // join
+              $async$goto = condition instanceof A.SupportsAnything0 ? 21 : 22;
+              break;
+            case 21:
+              // then
+              $async$temp1 = A;
+              $async$goto = 23;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$1(condition.contents), $async$_async_evaluate0$_visitSupportsCondition$1);
+            case 23:
+              // returning from await.
+              t1 = "(" + $async$temp1.S($async$result) + ")";
+              // goto break $label0$0
+              $async$goto = 3;
+              break;
+            case 22:
+              // join
+              t1 = A.throwExpression(A.ArgumentError$("Unknown supports condition type " + A.getRuntimeTypeOfDartObject(condition).toString$0(0) + ".", null));
+            case 3:
+              // break $label0$0
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_visitSupportsCondition$1, $async$completer);
+    },
+    _async_evaluate0$_withSupportsDeclaration$1$1(callback, $T) {
+      return this._withSupportsDeclaration$body$_EvaluateVisitor0(callback, $T, $T);
+    },
+    _withSupportsDeclaration$body$_EvaluateVisitor0(callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$next = [], $async$self = this, t1, oldInSupportsDeclaration;
+      var $async$_async_evaluate0$_withSupportsDeclaration$1$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldInSupportsDeclaration = $async$self._async_evaluate0$_inSupportsDeclaration;
+              $async$self._async_evaluate0$_inSupportsDeclaration = true;
+              $async$handler = 3;
+              t1 = callback.call$0();
+              $async$goto = 6;
+              return A._asyncAwait($T._eval$1("Future<0>")._is(t1) ? t1 : A._Future$value(t1, $T), $async$_async_evaluate0$_withSupportsDeclaration$1$1);
+            case 6:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              $async$next = [1];
+              // goto finally
+              $async$goto = 4;
+              break;
+              $async$next.push(5);
+              // goto finally
+              $async$goto = 4;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [2];
+            case 4:
+              // finally
+              $async$handler = 2;
+              $async$self._async_evaluate0$_inSupportsDeclaration = oldInSupportsDeclaration;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 5:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_withSupportsDeclaration$1$1, $async$completer);
+    },
+    _async_evaluate0$_parenthesize$2(condition, operator) {
+      return this._parenthesize$body$_EvaluateVisitor0(condition, operator);
+    },
+    _async_evaluate0$_parenthesize$1(condition) {
+      return this._async_evaluate0$_parenthesize$2(condition, null);
+    },
+    _parenthesize$body$_EvaluateVisitor0(condition, operator) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1, $async$temp1;
+      var $async$_async_evaluate0$_parenthesize$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (!(condition instanceof A.SupportsNegation0))
+                if (condition instanceof A.SupportsOperation0)
+                  t1 = operator == null || operator !== condition.operator;
+                else
+                  t1 = false;
+              else
+                t1 = true;
+              $async$goto = t1 ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$temp1 = A;
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate0$_visitSupportsCondition$1(condition), $async$_async_evaluate0$_parenthesize$2);
+            case 5:
+              // returning from await.
+              $async$returnValue = "(" + $async$temp1.S($async$result) + ")";
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_visitSupportsCondition$1(condition), $async$_async_evaluate0$_parenthesize$2);
+            case 6:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_parenthesize$2, $async$completer);
+    },
+    visitVariableDeclaration$1(node) {
+      return this.visitVariableDeclaration$body$_EvaluateVisitor0(node);
+    },
+    visitVariableDeclaration$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t2, value, t1, $async$temp1, $async$temp2, $async$temp3;
+      var $async$visitVariableDeclaration$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              if (node.isGuarded) {
+                if (node.namespace == null && $async$self._async_evaluate0$_environment._async_environment0$_variables.length === 1) {
+                  t2 = $async$self._async_evaluate0$_configuration._configuration0$_values;
+                  t2 = t2.get$isEmpty(t2) ? null : t2.remove$1(0, node.name);
+                  t1.override = null;
+                  if (t2 != null) {
+                    t1.override = t2;
+                    t2 = !t2.value.$eq(0, B.C__SassNull0);
+                  } else
+                    t2 = false;
+                  if (t2) {
+                    $async$self._async_evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure8(t1, $async$self, node));
+                    $async$returnValue = null;
+                    // goto return
+                    $async$goto = 1;
+                    break;
+                  }
+                }
+                value = $async$self._async_evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure9($async$self, node));
+                if (value != null && !value.$eq(0, B.C__SassNull0)) {
+                  $async$returnValue = null;
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+              }
+              if (node.isGlobal && !$async$self._async_evaluate0$_environment.globalVariableExists$1(node.name)) {
+                t1 = $async$self._async_evaluate0$_environment._async_environment0$_variables.length === 1 ? string$.As_of_S : string$.As_of_R + A.declarationName0(node.span) + ": null` at the stylesheet root.";
+                $async$self._async_evaluate0$_warn$3(t1, node.span, B.Deprecation_W6Z);
+              }
+              t1 = node.expression;
+              t2 = t1.accept$1($async$self);
+              $async$temp1 = node;
+              $async$temp2 = A;
+              $async$temp3 = node;
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_Value_2._is(t2) ? t2 : A._Future$value(t2, type$.Value_2), $async$visitVariableDeclaration$1);
+            case 3:
+              // returning from await.
+              $async$self._async_evaluate0$_addExceptionSpan$2($async$temp1, new $async$temp2._EvaluateVisitor_visitVariableDeclaration_closure10($async$self, $async$temp3, $async$self._async_evaluate0$_withoutSlash$2($async$result, t1)));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitVariableDeclaration$1, $async$completer);
+    },
+    visitUseRule$1(node) {
+      return this.visitUseRule$body$_EvaluateVisitor0(node);
+    },
+    visitUseRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, values, t3, t4, _i, variable, t5, variableNodeWithSpan, t6, t7, configuration, t1, t2, $async$temp1, $async$temp2, $async$temp3;
+      var $async$visitUseRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = node.configuration;
+              t2 = t1.length;
+              $async$goto = t2 !== 0 ? 3 : 5;
+              break;
+            case 3:
+              // then
+              values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue_2);
+              t3 = type$._Future_Value_2, t4 = type$.Future_Value_2, _i = 0;
+            case 6:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              variable = t1[_i];
+              t5 = variable.expression;
+              variableNodeWithSpan = $async$self._async_evaluate0$_expressionNode$1(t5);
+              t6 = variable.name;
+              t5 = t5.accept$1($async$self);
+              if (!t4._is(t5)) {
+                t7 = new A._Future($.Zone__current, t3);
+                t7._state = 8;
+                t7._resultOrListeners = t5;
+                t5 = t7;
+              }
+              $async$temp1 = values;
+              $async$temp2 = t6;
+              $async$temp3 = A;
+              $async$goto = 9;
+              return A._asyncAwait(t5, $async$visitUseRule$1);
+            case 9:
+              // returning from await.
+              $async$temp1.$indexSet(0, $async$temp2, new $async$temp3.ConfiguredValue0($async$self._async_evaluate0$_withoutSlash$2($async$result, variableNodeWithSpan), variable.span, variableNodeWithSpan));
+            case 7:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+              configuration = new A.ExplicitConfiguration0(node, values, null);
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              configuration = B.Configuration_Map_empty_null0;
+            case 4:
+              // join
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate0$_loadModule$5$configuration(node.url, "@use", node, new A._EvaluateVisitor_visitUseRule_closure2($async$self, node), configuration), $async$visitUseRule$1);
+            case 10:
+              // returning from await.
+              $async$self._async_evaluate0$_assertConfigurationIsEmpty$1(configuration);
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitUseRule$1, $async$completer);
+    },
+    visitWarnRule$1(node) {
+      return this.visitWarnRule$body$_EvaluateVisitor0(node);
+    },
+    visitWarnRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, value, t1;
+      var $async$visitWarnRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_addExceptionSpanAsync$1$2(node, new A._EvaluateVisitor_visitWarnRule_closure2($async$self, node), type$.Value_2), $async$visitWarnRule$1);
+            case 3:
+              // returning from await.
+              value = $async$result;
+              t1 = value instanceof A.SassString0 ? value._string0$_text : $async$self._async_evaluate0$_serialize$2(value, node.expression);
+              $async$self._async_evaluate0$_logger.warn$2$trace(0, t1, $async$self._async_evaluate0$_stackTrace$1(node.span));
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitWarnRule$1, $async$completer);
+    },
+    visitWhileRule$1(node) {
+      return this._async_evaluate0$_environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitWhileRule_closure2(this, node), true, node.hasDeclarations, type$.nullable_Value_2);
+    },
+    visitBinaryOperationExpression$1(node) {
+      var t1, _this = this;
+      if (_this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__stylesheet, "_stylesheet").plainCss) {
+        t1 = node.operator;
+        t1 = t1 !== B.BinaryOperator_wdM0 && t1 !== B.BinaryOperator_U770;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(_this._async_evaluate0$_exception$2("Operators aren't allowed in plain CSS.", node.get$operatorSpan()));
+      return _this._async_evaluate0$_addExceptionSpanAsync$1$2(node, new A._EvaluateVisitor_visitBinaryOperationExpression_closure2(_this, node), type$.Value_2);
+    },
+    _async_evaluate0$_slash$3(left, right, node) {
+      var t1, right0, _1_2, _1_1, _null = null,
+        result = left.dividedBy$1(right),
+        _1_2_isSet = left instanceof A.SassNumber0;
+      if (_1_2_isSet) {
+        t1 = type$.SassNumber_2;
+        t1._as(left);
+        if (right instanceof A.SassNumber0) {
+          t1._as(right);
+          t1 = node.allowsSlash && this._async_evaluate0$_operandAllowsSlash$1(node.left) && this._async_evaluate0$_operandAllowsSlash$1(node.right);
+          right0 = right;
+          _1_2 = right0;
+        } else {
+          right0 = _null;
+          _1_2 = right;
+          t1 = false;
+        }
+        _1_1 = left;
+      } else {
+        right0 = _null;
+        _1_2 = right0;
+        _1_1 = left;
+        left = _1_2;
+        t1 = false;
+      }
+      if (t1)
+        return type$.SassNumber_2._as(result).withSlash$2(left, right0);
+      if (_1_1 instanceof A.SassNumber0)
+        t1 = (_1_2_isSet ? _1_2 : right) instanceof A.SassNumber0;
+      else
+        t1 = false;
+      if (t1) {
+        this._async_evaluate0$_warn$3(string$.Using__o + A.S(new A._EvaluateVisitor__slash_recommendation2().call$1(node)) + " or " + A.expressionToCalc0(node).toString$0(0) + string$.x0a_Morex20, node.get$span(0), B.Deprecation_E8a);
+        return result;
+      }
+      return result;
+    },
+    _async_evaluate0$_operandAllowsSlash$1(node) {
+      var t1;
+      if (node instanceof A.FunctionExpression0)
+        if (node.namespace == null) {
+          t1 = node.name;
+          t1 = B.Set_yHF81.contains$1(0, t1.toLowerCase()) && this._async_evaluate0$_environment.getFunction$1(t1) == null;
+        } else
+          t1 = false;
+      else
+        t1 = true;
+      return t1;
+    },
+    visitValueExpression$1(node) {
+      return this.visitValueExpression$body$_EvaluateVisitor0(node);
+    },
+    visitValueExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue;
+      var $async$visitValueExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = node.value;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitValueExpression$1, $async$completer);
+    },
+    visitVariableExpression$1(node) {
+      return this.visitVariableExpression$body$_EvaluateVisitor0(node);
+    },
+    visitVariableExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, result;
+      var $async$visitVariableExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              result = $async$self._async_evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableExpression_closure2($async$self, node));
+              if (result != null) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              throw A.wrapException($async$self._async_evaluate0$_exception$2("Undefined variable.", node.span));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitVariableExpression$1, $async$completer);
+    },
+    visitUnaryOperationExpression$1(node) {
+      return this.visitUnaryOperationExpression$body$_EvaluateVisitor0(node);
+    },
+    visitUnaryOperationExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, $async$temp1, $async$temp2, $async$temp3;
+      var $async$visitUnaryOperationExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = node;
+              $async$temp2 = A;
+              $async$temp3 = node;
+              $async$goto = 3;
+              return A._asyncAwait(node.operand.accept$1($async$self), $async$visitUnaryOperationExpression$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate0$_addExceptionSpan$2($async$temp1, new $async$temp2._EvaluateVisitor_visitUnaryOperationExpression_closure2($async$temp3, $async$result));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitUnaryOperationExpression$1, $async$completer);
+    },
+    visitBooleanExpression$1(node) {
+      return this.visitBooleanExpression$body$_EvaluateVisitor0(node);
+    },
+    visitBooleanExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassBoolean_2),
+        $async$returnValue;
+      var $async$visitBooleanExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = node.value ? B.SassBoolean_true0 : B.SassBoolean_false0;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitBooleanExpression$1, $async$completer);
+    },
+    visitIfExpression$1(node) {
+      return this.visitIfExpression$body$_EvaluateVisitor0(node);
+    },
+    visitIfExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, condition, t1, ifTrue, ifFalse, result, _0_0, positional, named;
+      var $async$visitIfExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_evaluateMacroArguments$1(node), $async$visitIfExpression$1);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              positional = _0_0._0;
+              named = _0_0._1;
+              $async$self._async_evaluate0$_verifyArguments$4(J.get$length$asx(positional), named, $.$get$IfExpression_declaration0(), node);
+              condition = A.ListExtensions_elementAtOrNull(positional, 0);
+              if (condition == null) {
+                t1 = named.$index(0, "condition");
+                t1.toString;
+                condition = t1;
+              }
+              ifTrue = A.ListExtensions_elementAtOrNull(positional, 1);
+              if (ifTrue == null) {
+                t1 = named.$index(0, "if-true");
+                t1.toString;
+                ifTrue = t1;
+              }
+              ifFalse = A.ListExtensions_elementAtOrNull(positional, 2);
+              if (ifFalse == null) {
+                t1 = named.$index(0, "if-false");
+                t1.toString;
+                ifFalse = t1;
+              }
+              $async$goto = 4;
+              return A._asyncAwait(condition.accept$1($async$self), $async$visitIfExpression$1);
+            case 4:
+              // returning from await.
+              result = $async$result.get$isTruthy() ? ifTrue : ifFalse;
+              t1 = result.accept$1($async$self);
+              $async$goto = 5;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$visitIfExpression$1);
+            case 5:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate0$_withoutSlash$2($async$result, $async$self._async_evaluate0$_expressionNode$1(result));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitIfExpression$1, $async$completer);
+    },
+    visitNullExpression$1(node) {
+      return this.visitNullExpression$body$_EvaluateVisitor0(node);
+    },
+    visitNullExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue;
+      var $async$visitNullExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = B.C__SassNull0;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitNullExpression$1, $async$completer);
+    },
+    visitNumberExpression$1(node) {
+      return this.visitNumberExpression$body$_EvaluateVisitor0(node);
+    },
+    visitNumberExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassNumber_2),
+        $async$returnValue;
+      var $async$visitNumberExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = A.SassNumber_SassNumber0(node.value, node.unit);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitNumberExpression$1, $async$completer);
+    },
+    visitParenthesizedExpression$1(node) {
+      var _this = this;
+      return _this._async_evaluate0$_assertInModule$2(_this._async_evaluate0$__stylesheet, "_stylesheet").plainCss ? A.throwExpression(_this._async_evaluate0$_exception$2("Parentheses aren't allowed in plain CSS.", node.span)) : node.expression.accept$1(_this);
+    },
+    visitColorExpression$1(node) {
+      return this.visitColorExpression$body$_EvaluateVisitor0(node);
+    },
+    visitColorExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassColor_2),
+        $async$returnValue;
+      var $async$visitColorExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = node.value;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitColorExpression$1, $async$completer);
+    },
+    visitListExpression$1(node) {
+      return this.visitListExpression$body$_EvaluateVisitor0(node);
+    },
+    visitListExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassList_2),
+        $async$returnValue, $async$self = this, $async$temp1;
+      var $async$visitListExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait(A.mapAsync0(node.contents, new A._EvaluateVisitor_visitListExpression_closure2($async$self), type$.Expression_2, type$.Value_2), $async$visitListExpression$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$temp1.SassList$0($async$result, node.separator, node.hasBrackets);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitListExpression$1, $async$completer);
+    },
+    visitMapExpression$1(node) {
+      return this.visitMapExpression$body$_EvaluateVisitor0(node);
+    },
+    visitMapExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassMap_2),
+        $async$returnValue, $async$self = this, t2, t3, _i, t4, key, value, keyValue, valueValue, oldValueSpan, t1, map, keyNodes;
+      var $async$visitMapExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = type$.Value_2;
+              map = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+              keyNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode_2);
+              t2 = node.pairs, t3 = t2.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              t4 = t2[_i];
+              key = t4._0;
+              value = t4._1;
+              $async$goto = 6;
+              return A._asyncAwait(key.accept$1($async$self), $async$visitMapExpression$1);
+            case 6:
+              // returning from await.
+              keyValue = $async$result;
+              $async$goto = 7;
+              return A._asyncAwait(value.accept$1($async$self), $async$visitMapExpression$1);
+            case 7:
+              // returning from await.
+              valueValue = $async$result;
+              if (map.containsKey$1(keyValue)) {
+                t1 = keyNodes.$index(0, keyValue);
+                oldValueSpan = t1 == null ? null : t1.get$span(t1);
+                t1 = key.get$span(key);
+                t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+                if (oldValueSpan != null)
+                  t2.$indexSet(0, oldValueSpan, "first key");
+                throw A.wrapException(A.MultiSpanSassRuntimeException$0("Duplicate key.", t1, "second key", t2, $async$self._async_evaluate0$_stackTrace$1(key.get$span(key)), null));
+              }
+              map.$indexSet(0, keyValue, valueValue);
+              keyNodes.$indexSet(0, keyValue, key);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = new A.SassMap0(A.ConstantMap_ConstantMap$from(map, t1, t1));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitMapExpression$1, $async$completer);
+    },
+    visitFunctionExpression$1(node) {
+      return this.visitFunctionExpression$body$_EvaluateVisitor0(node);
+    },
+    visitFunctionExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t2, _0_0, t3, t4, oldInFunction, result, t1, $function;
+      var $async$visitFunctionExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              $function = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss ? null : $async$self._async_evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure8($async$self, node));
+              t1.$function = $function;
+              $async$goto = $function == null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              if (node.namespace != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2("Undefined function.", node.span));
+              t2 = node.name;
+              _0_0 = t2.toLowerCase();
+              if ("min" === _0_0 || "max" === _0_0 || "round" === _0_0 || "abs" === _0_0) {
+                t3 = node.$arguments;
+                t4 = t3.named;
+                t3 = t4.get$isEmpty(t4) && t3.rest == null && B.JSArray_methods.every$1(t3.positional, new A._EvaluateVisitor_visitFunctionExpression_closure9());
+              } else
+                t3 = false;
+              $async$goto = t3 ? 6 : 7;
+              break;
+            case 6:
+              // then
+              $async$goto = 8;
+              return A._asyncAwait($async$self._async_evaluate0$_visitCalculation$2$inLegacySassFunction(node, true), $async$visitFunctionExpression$1);
+            case 8:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 7:
+              // join
+              $async$goto = "calc" === _0_0 || "clamp" === _0_0 || "hypot" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "sqrt" === _0_0 || "exp" === _0_0 || "sign" === _0_0 || "mod" === _0_0 || "rem" === _0_0 || "atan2" === _0_0 || "pow" === _0_0 || "log" === _0_0 ? 9 : 10;
+              break;
+            case 9:
+              // then
+              $async$goto = 11;
+              return A._asyncAwait($async$self._async_evaluate0$_visitCalculation$1(node), $async$visitFunctionExpression$1);
+            case 11:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 10:
+              // join
+              $function = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__stylesheet, "_stylesheet").plainCss ? null : $async$self._async_evaluate0$_builtInFunctions.$index(0, t2);
+              t2 = t1.$function = $function == null ? new A.PlainCssCallable0(node.originalName) : $function;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              t2 = $function;
+            case 4:
+              // join
+              if (B.JSString_methods.startsWith$1(node.originalName, "--") && t2 instanceof A.UserDefinedCallable0 && !B.JSString_methods.startsWith$1(t2.declaration.originalName, "--"))
+                $async$self._async_evaluate0$_warn$3(string$.Sass__ff, node.get$nameSpan(), B.Deprecation_qBS);
+              oldInFunction = $async$self._async_evaluate0$_inFunction;
+              $async$self._async_evaluate0$_inFunction = true;
+              $async$goto = 12;
+              return A._asyncAwait($async$self._async_evaluate0$_addErrorSpan$1$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure10(t1, $async$self, node), type$.Value_2), $async$visitFunctionExpression$1);
+            case 12:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_inFunction = oldInFunction;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitFunctionExpression$1, $async$completer);
+    },
+    _async_evaluate0$_visitCalculation$2$inLegacySassFunction(node, inLegacySassFunction) {
+      return this._visitCalculation$body$_EvaluateVisitor0(node, inLegacySassFunction);
+    },
+    _async_evaluate0$_visitCalculation$1(node) {
+      return this._async_evaluate0$_visitCalculation$2$inLegacySassFunction(node, false);
+    },
+    _visitCalculation$body$_EvaluateVisitor0(node, inLegacySassFunction) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$next = [], $async$self = this, $arguments, oldCallableNode, t1, _0_0, error, stackTrace, t4, _i, exception, t2, t3, $async$temp1;
+      var $async$_async_evaluate0$_visitCalculation$2$inLegacySassFunction = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t2 = node.$arguments;
+              t3 = t2.named;
+              if (t3.get$isNotEmpty(t3))
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Keywor, node.span));
+              else if (t2.rest != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Rest_a, node.span));
+              $async$self._async_evaluate0$_checkCalculationArguments$1(node);
+              t3 = A._setArrayType([], type$.JSArray_Object);
+              t2 = t2.positional, t4 = t2.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t4)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$temp1 = t3;
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction), $async$_async_evaluate0$_visitCalculation$2$inLegacySassFunction);
+            case 6:
+              // returning from await.
+              $async$temp1.push($async$result);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $arguments = t3;
+              if ($async$self._async_evaluate0$_inSupportsDeclaration) {
+                $async$returnValue = new A.SassCalculation0(node.name, A.List_List$unmodifiable($arguments, type$.Object));
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              oldCallableNode = $async$self._async_evaluate0$_callableNode;
+              $async$self._async_evaluate0$_callableNode = node;
+              try {
+                t1 = null;
+                t3 = node.name;
+                _0_0 = t3.toLowerCase();
+                $label0$0: {
+                  if ("calc" === _0_0) {
+                    t1 = A.SassCalculation_calc0(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("sqrt" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("sqrt", J.$index$asx($arguments, 0), A.number2__sqrt$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("sin" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("sin", J.$index$asx($arguments, 0), A.number2__sin$closure(), false);
+                    break $label0$0;
+                  }
+                  if ("cos" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("cos", J.$index$asx($arguments, 0), A.number2__cos$closure(), false);
+                    break $label0$0;
+                  }
+                  if ("tan" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("tan", J.$index$asx($arguments, 0), A.number2__tan$closure(), false);
+                    break $label0$0;
+                  }
+                  if ("asin" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("asin", J.$index$asx($arguments, 0), A.number2__asin$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("acos" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("acos", J.$index$asx($arguments, 0), A.number2__acos$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("atan" === _0_0) {
+                    t1 = A.SassCalculation__singleArgument0("atan", J.$index$asx($arguments, 0), A.number2__atan$closure(), true);
+                    break $label0$0;
+                  }
+                  if ("abs" === _0_0) {
+                    t1 = A.SassCalculation_abs0(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("exp" === _0_0) {
+                    t1 = A.SassCalculation_exp0(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("sign" === _0_0) {
+                    t1 = A.SassCalculation_sign0(J.$index$asx($arguments, 0));
+                    break $label0$0;
+                  }
+                  if ("min" === _0_0) {
+                    t1 = A.SassCalculation_min0($arguments);
+                    break $label0$0;
+                  }
+                  if ("max" === _0_0) {
+                    t1 = A.SassCalculation_max0($arguments);
+                    break $label0$0;
+                  }
+                  if ("hypot" === _0_0) {
+                    t1 = A.SassCalculation_hypot0($arguments);
+                    break $label0$0;
+                  }
+                  if ("pow" === _0_0) {
+                    t1 = A.SassCalculation_pow0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("atan2" === _0_0) {
+                    t1 = A.SassCalculation_atan20(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("log" === _0_0) {
+                    t1 = A.SassCalculation_log0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("mod" === _0_0) {
+                    t1 = A.SassCalculation_mod0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("rem" === _0_0) {
+                    t1 = A.SassCalculation_rem0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+                    break $label0$0;
+                  }
+                  if ("round" === _0_0) {
+                    t1 = A.SassCalculation_round0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+                    break $label0$0;
+                  }
+                  if ("clamp" === _0_0) {
+                    t1 = A.SassCalculation_clamp0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+                    break $label0$0;
+                  }
+                  t3 = A.UnsupportedError$('Unknown calculation name "' + t3 + '".');
+                  t1 = A.throwExpression(t3);
+                }
+                t1 = t1;
+                $async$returnValue = t1;
+                // goto return
+                $async$goto = 1;
+                break;
+              } catch (exception) {
+                t1 = A.unwrapException(exception);
+                if (t1 instanceof A.SassScriptException0) {
+                  error = t1;
+                  stackTrace = A.getTraceFromException(exception);
+                  if (B.JSString_methods.contains$1(error.message, "compatible"))
+                    $async$self._async_evaluate0$_verifyCompatibleNumbers$2($arguments, t2);
+                  A.throwWithTrace0($async$self._async_evaluate0$_exception$2(error.message, node.span), error, stackTrace);
+                } else
+                  throw exception;
+              } finally {
+                $async$self._async_evaluate0$_callableNode = oldCallableNode;
+              }
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_visitCalculation$2$inLegacySassFunction, $async$completer);
+    },
+    _async_evaluate0$_checkCalculationArguments$1(node) {
+      var t1, _0_0,
+        check = new A._EvaluateVisitor__checkCalculationArguments_check2(this, node);
+      $label0$0: {
+        t1 = node.name;
+        _0_0 = t1.toLowerCase();
+        if ("calc" === _0_0 || "sqrt" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "abs" === _0_0 || "exp" === _0_0 || "sign" === _0_0) {
+          check.call$1(1);
+          break $label0$0;
+        }
+        if ("min" === _0_0 || "max" === _0_0 || "hypot" === _0_0) {
+          check.call$0();
+          break $label0$0;
+        }
+        if ("pow" === _0_0 || "atan2" === _0_0 || "log" === _0_0 || "mod" === _0_0 || "rem" === _0_0) {
+          check.call$1(2);
+          break $label0$0;
+        }
+        if ("round" === _0_0 || "clamp" === _0_0) {
+          check.call$1(3);
+          break $label0$0;
+        }
+        throw A.wrapException(A.UnsupportedError$('Unknown calculation name "' + t1 + '".'));
+      }
+    },
+    _async_evaluate0$_verifyCompatibleNumbers$2(args, nodesWithSpans) {
+      var i, t1, _0_0, arg, number1, j, number2;
+      for (i = 0; t1 = args.length, i < t1; ++i) {
+        _0_0 = args[i];
+        if (_0_0 instanceof A.SassNumber0) {
+          t1 = _0_0.get$hasComplexUnits();
+          arg = _0_0;
+        } else {
+          arg = null;
+          t1 = false;
+        }
+        if (t1)
+          throw A.wrapException(this._async_evaluate0$_exception$2("Number " + A.S(arg) + " isn't compatible with CSS calculations.", J.get$span$z(nodesWithSpans[i])));
+      }
+      for (i = 0; i < t1 - 1; ++i) {
+        number1 = args[i];
+        if (!(number1 instanceof A.SassNumber0))
+          continue;
+        for (j = i + 1; t1 = args.length, j < t1; ++j) {
+          number2 = args[j];
+          if (!(number2 instanceof A.SassNumber0))
+            continue;
+          if (number1.hasPossiblyCompatibleUnits$1(number2))
+            continue;
+          throw A.wrapException(A.MultiSpanSassRuntimeException$0(number1.toString$0(0) + " and " + number2.toString$0(0) + " are incompatible.", J.get$span$z(nodesWithSpans[i]), number1.toString$0(0), A.LinkedHashMap_LinkedHashMap$_literal([J.get$span$z(nodesWithSpans[j]), number2.toString$0(0)], type$.FileSpan, type$.String), this._async_evaluate0$_stackTrace$1(J.get$span$z(nodesWithSpans[i])), null));
+        }
+      }
+    },
+    _async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction(node, inLegacySassFunction) {
+      return this._visitCalculationExpression$body$_EvaluateVisitor0(node, inLegacySassFunction);
+    },
+    _visitCalculationExpression$body$_EvaluateVisitor0(node, inLegacySassFunction) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Object),
+        $async$returnValue, $async$self = this, result, t2, _0_0, _1_0, t3, _i, i, _box_0, t1, inner, $async$temp1;
+      var $async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              t1 = node instanceof A.ParenthesizedExpression0;
+              inner = t1 ? node.expression : null;
+              $async$goto = t1 ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait($async$self._async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction(inner, inLegacySassFunction), $async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction);
+            case 5:
+              // returning from await.
+              result = $async$result;
+              $async$returnValue = result instanceof A.SassString0 ? new A.SassString0("(" + result._string0$_text + ")", false) : result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$goto = node instanceof A.StringExpression0 && node.accept$1(new A._IsCalculationSafeVisitor0()) ? 6 : 7;
+              break;
+            case 6:
+              // then
+              t1 = node.text;
+              t2 = t1.get$asPlain();
+              _0_0 = t2 == null ? null : t2.toLowerCase();
+              if ("pi" === _0_0) {
+                t1 = A.SassNumber_SassNumber0(3.141592653589793, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("e" === _0_0) {
+                t1 = A.SassNumber_SassNumber0(2.718281828459045, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("infinity" === _0_0) {
+                t1 = A.SassNumber_SassNumber0(1 / 0, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("-infinity" === _0_0) {
+                t1 = A.SassNumber_SassNumber0(-1 / 0, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              if ("nan" === _0_0) {
+                t1 = A.SassNumber_SassNumber0(0 / 0, null);
+                // goto break $label0$0
+                $async$goto = 8;
+                break;
+              }
+              $async$temp1 = A;
+              $async$goto = 9;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$1(t1), $async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction);
+            case 9:
+              // returning from await.
+              t1 = new $async$temp1.SassString0($async$result, false);
+              // goto break $label0$0
+              $async$goto = 8;
+              break;
+            case 8:
+              // break $label0$0
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 7:
+              // join
+              _box_0.right = _box_0.left = _box_0.operator = null;
+              t1 = node instanceof A.BinaryOperationExpression0;
+              if (t1) {
+                _box_0.operator = node.operator;
+                _box_0.left = node.left;
+                _box_0.right = node.right;
+              }
+              $async$goto = t1 ? 10 : 11;
+              break;
+            case 10:
+              // then
+              $async$self._async_evaluate0$_checkWhitespaceAroundCalculationOperator$1(node);
+              $async$goto = 12;
+              return A._asyncAwait($async$self._async_evaluate0$_addExceptionSpanAsync$1$2(node, new A._EvaluateVisitor__visitCalculationExpression_closure2(_box_0, $async$self, node, inLegacySassFunction), type$.Object), $async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction);
+            case 12:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 11:
+              // join
+              $async$goto = node instanceof A.NumberExpression0 || node instanceof A.VariableExpression0 || node instanceof A.FunctionExpression0 || node instanceof A.IfExpression0 ? 13 : 14;
+              break;
+            case 13:
+              // then
+              $async$goto = 15;
+              return A._asyncAwait(node.accept$1($async$self), $async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction);
+            case 15:
+              // returning from await.
+              _1_0 = $async$result;
+              $label1$1: {
+                if (_1_0 instanceof A.SassNumber0) {
+                  t1 = _1_0;
+                  break $label1$1;
+                }
+                if (_1_0 instanceof A.SassCalculation0) {
+                  t1 = _1_0;
+                  break $label1$1;
+                }
+                if (_1_0 instanceof A.SassString0) {
+                  t1 = !_1_0._string0$_hasQuotes;
+                  result = _1_0;
+                } else {
+                  result = null;
+                  t1 = false;
+                }
+                if (t1) {
+                  t1 = result;
+                  break $label1$1;
+                }
+                t1 = A.throwExpression($async$self._async_evaluate0$_exception$2("Value " + _1_0.toString$0(0) + " can't be used in a calculation.", node.get$span(node)));
+              }
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 14:
+              // join
+              $async$goto = node instanceof A.ListExpression0 && !node.hasBrackets && B.ListSeparator_nbm0 === node.separator && node.contents.length >= 2 ? 16 : 17;
+              break;
+            case 16:
+              // then
+              t1 = A._setArrayType([], type$.JSArray_Object);
+              t2 = node.contents, t3 = t2.length, _i = 0;
+            case 18:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 20;
+                break;
+              }
+              $async$temp1 = t1;
+              $async$goto = 21;
+              return A._asyncAwait($async$self._async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction), $async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction);
+            case 21:
+              // returning from await.
+              $async$temp1.push($async$result);
+            case 19:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 18;
+              break;
+            case 20:
+              // after for
+              $async$self._async_evaluate0$_checkAdjacentCalculationValues$2(t1, node);
+              for (i = 0; i < t1.length; ++i) {
+                t3 = t1[i];
+                if (t3 instanceof A.CalculationOperation0 && t2[i] instanceof A.ParenthesizedExpression0)
+                  t1[i] = new A.SassString0("(" + A.S(t3) + ")", false);
+              }
+              $async$returnValue = new A.SassString0(B.JSArray_methods.join$1(t1, " "), false);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 17:
+              // join
+              throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.This_e, node.get$span(node)));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction, $async$completer);
+    },
+    _async_evaluate0$_checkWhitespaceAroundCalculationOperator$1(node) {
+      var t2, t3, t4, textBetweenOperands, first, last,
+        t1 = node.operator;
+      if (t1 !== B.BinaryOperator_u150 && t1 !== B.BinaryOperator_SjO0)
+        return;
+      t1 = node.left;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t3 = node.right;
+      t4 = t3.get$span(t3);
+      if (t2 !== t4.get$file(t4))
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$end(t2);
+      t4 = t3.get$span(t3);
+      if (t2.offset >= t4.get$start(t4).offset)
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t1 = t1.get$span(t1);
+      t1 = t1.get$end(t1);
+      t3 = t3.get$span(t3);
+      textBetweenOperands = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2._decodedChars, t1.offset, t3.get$start(t3).offset), 0, null);
+      first = textBetweenOperands.charCodeAt(0);
+      last = textBetweenOperands.charCodeAt(textBetweenOperands.length - 1);
+      if (first === 32 || first === 9 || first === 10 || first === 13 || first === 12 || first === 47)
+        t1 = !(last === 32 || last === 9 || last === 10 || last === 13 || last === 12 || last === 47);
+      else
+        t1 = true;
+      if (t1)
+        throw A.wrapException(this._async_evaluate0$_exception$2(string$.x22x2b__an, node.get$operatorSpan()));
+    },
+    _async_evaluate0$_binaryOperatorToCalculationOperator$2(operator, node) {
+      var t1;
+      $label0$0: {
+        if (B.BinaryOperator_u150 === operator) {
+          t1 = B.CalculationOperator_g2q0;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_SjO0 === operator) {
+          t1 = B.CalculationOperator_CxF0;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_2No0 === operator) {
+          t1 = B.CalculationOperator_1710;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_U770 === operator) {
+          t1 = B.CalculationOperator_Qf10;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(this._async_evaluate0$_exception$2(string$.This_o, node.get$operatorSpan()));
+      }
+      return t1;
+    },
+    _async_evaluate0$_checkAdjacentCalculationValues$2(elements, node) {
+      var t1, i, t2, previous, current, previousNode, currentNode, _0_2;
+      for (t1 = elements.length, i = 1; i < t1; ++i) {
+        t2 = i - 1;
+        previous = elements[t2];
+        current = elements[i];
+        if (previous instanceof A.SassString0 || current instanceof A.SassString0)
+          continue;
+        t1 = node.contents;
+        previousNode = t1[t2];
+        currentNode = t1[i];
+        if (currentNode instanceof A.UnaryOperationExpression0) {
+          _0_2 = currentNode.operator;
+          if (B.UnaryOperator_AiQ0 !== _0_2)
+            t1 = B.UnaryOperator_cLp0 === _0_2;
+          else
+            t1 = true;
+        } else
+          t1 = false;
+        if (!t1)
+          t1 = currentNode instanceof A.NumberExpression0 && currentNode.value < 0;
+        else
+          t1 = true;
+        if (t1)
+          throw A.wrapException(this._async_evaluate0$_exception$2(string$.x22x2b__an, A.FileSpanExtension_subspan(currentNode.get$span(currentNode), 0, 1)));
+        else
+          throw A.wrapException(this._async_evaluate0$_exception$2("Missing math operator.", previousNode.get$span(previousNode).expand$1(0, currentNode.get$span(currentNode))));
+      }
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return this.visitInterpolatedFunctionExpression$body$_EvaluateVisitor0(node);
+    },
+    visitInterpolatedFunctionExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, result, t1, oldInFunction;
+      var $async$visitInterpolatedFunctionExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$1(node.name), $async$visitInterpolatedFunctionExpression$1);
+            case 3:
+              // returning from await.
+              t1 = $async$result;
+              oldInFunction = $async$self._async_evaluate0$_inFunction;
+              $async$self._async_evaluate0$_inFunction = true;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate0$_addErrorSpan$1$2(node, new A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure2($async$self, node, new A.PlainCssCallable0(t1)), type$.Value_2), $async$visitInterpolatedFunctionExpression$1);
+            case 4:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_inFunction = oldInFunction;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitInterpolatedFunctionExpression$1, $async$completer);
+    },
+    _async_evaluate0$_runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, run, $V) {
+      return this._runUserDefinedCallable$body$_EvaluateVisitor0($arguments, callable, nodeWithSpan, run, $V, $V);
+    },
+    _runUserDefinedCallable$body$_EvaluateVisitor0($arguments, callable, nodeWithSpan, run, $V, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, oldCallable, result, evaluated, $name;
+      var $async$_async_evaluate0$_runUserDefinedCallable$1$4 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_evaluateArguments$1($arguments), $async$_async_evaluate0$_runUserDefinedCallable$1$4);
+            case 3:
+              // returning from await.
+              evaluated = $async$result;
+              $name = callable.declaration.name;
+              if ($name !== "@content")
+                $name += "()";
+              oldCallable = $async$self._async_evaluate0$_currentCallable;
+              $async$self._async_evaluate0$_currentCallable = callable;
+              $async$goto = 4;
+              return A._asyncAwait($async$self._async_evaluate0$_withStackFrame$1$3($name, nodeWithSpan, new A._EvaluateVisitor__runUserDefinedCallable_closure2($async$self, callable, evaluated, nodeWithSpan, run, $V), $V), $async$_async_evaluate0$_runUserDefinedCallable$1$4);
+            case 4:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_currentCallable = oldCallable;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_runUserDefinedCallable$1$4, $async$completer);
+    },
+    _async_evaluate0$_runFunctionCallable$3($arguments, callable, nodeWithSpan) {
+      return this._runFunctionCallable$body$_EvaluateVisitor0($arguments, callable, nodeWithSpan);
+    },
+    _runFunctionCallable$body$_EvaluateVisitor0($arguments, callable, nodeWithSpan) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, buffer, first, argument, restArg, rest, error, t1, t2, _i, t3, t4, exception, $async$exception, $async$temp1;
+      var $async$_async_evaluate0$_runFunctionCallable$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = type$.AsyncBuiltInCallable_2._is(callable) ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait($async$self._async_evaluate0$_runBuiltInCallable$3($arguments, callable, nodeWithSpan), $async$_async_evaluate0$_runFunctionCallable$3);
+            case 6:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate0$_withoutSlash$2($async$result, nodeWithSpan);
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$goto = type$.UserDefinedCallable_AsyncEnvironment_2._is(callable) ? 7 : 9;
+              break;
+            case 7:
+              // then
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_evaluate0$_runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, new A._EvaluateVisitor__runFunctionCallable_closure2($async$self, callable), type$.Value_2), $async$_async_evaluate0$_runFunctionCallable$3);
+            case 10:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 8;
+              break;
+            case 9:
+              // else
+              $async$goto = callable instanceof A.PlainCssCallable0 ? 11 : 13;
+              break;
+            case 11:
+              // then
+              t1 = $arguments.named;
+              if (t1.get$isNotEmpty(t1) || $arguments.keywordRest != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Plain_, nodeWithSpan.get$span(nodeWithSpan)));
+              buffer = new A.StringBuffer(callable.name + "(");
+              $async$handler = 15;
+              first = true;
+              t1 = $arguments.positional, t2 = t1.length, _i = 0;
+            case 18:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 20;
+                break;
+              }
+              argument = t1[_i];
+              if (first)
+                first = false;
+              else
+                buffer._contents += ", ";
+              t3 = buffer;
+              $async$temp1 = A;
+              $async$goto = 21;
+              return A._asyncAwait($async$self._async_evaluate0$_evaluateToCss$1(argument), $async$_async_evaluate0$_runFunctionCallable$3);
+            case 21:
+              // returning from await.
+              t4 = $async$temp1.S($async$result);
+              t3._contents += t4;
+            case 19:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 18;
+              break;
+            case 20:
+              // after for
+              restArg = $arguments.rest;
+              $async$goto = restArg != null ? 22 : 23;
+              break;
+            case 22:
+              // then
+              $async$goto = 24;
+              return A._asyncAwait(restArg.accept$1($async$self), $async$_async_evaluate0$_runFunctionCallable$3);
+            case 24:
+              // returning from await.
+              rest = $async$result;
+              if (!first)
+                buffer._contents += ", ";
+              t1 = buffer;
+              t2 = $async$self._async_evaluate0$_serialize$2(rest, restArg);
+              t1._contents += t2;
+            case 23:
+              // join
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 17;
+              break;
+            case 15:
+              // catch
+              $async$handler = 14;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (type$.SassRuntimeException_2._is(t1)) {
+                error = t1;
+                if (!B.JSString_methods.endsWith$1(error._span_exception$_message, "isn't a valid CSS value."))
+                  throw $async$exception;
+                throw A.wrapException(A.MultiSpanSassRuntimeException$0(error._span_exception$_message, J.get$span$z(error), "value", A.LinkedHashMap_LinkedHashMap$_literal([nodeWithSpan.get$span(nodeWithSpan), "unknown function treated as plain CSS"], type$.FileSpan, type$.String), J.get$trace$z(error), null));
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 17;
+              break;
+            case 14:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 17:
+              // after finally
+              t1 = buffer;
+              t2 = A.Primitives_stringFromCharCode(41);
+              t1._contents += t2;
+              t2 = buffer._contents;
+              $async$returnValue = new A.SassString0(t2.charCodeAt(0) == 0 ? t2 : t2, false);
+              // goto return
+              $async$goto = 1;
+              break;
+              // goto join
+              $async$goto = 12;
+              break;
+            case 13:
+              // else
+              throw A.wrapException(A.ArgumentError$("Unknown callable type " + J.get$runtimeType$(callable).toString$0(0) + ".", null));
+            case 12:
+              // join
+            case 8:
+              // join
+            case 4:
+              // join
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_runFunctionCallable$3, $async$completer);
+    },
+    _async_evaluate0$_runBuiltInCallable$3($arguments, callable, nodeWithSpan) {
+      return this._runBuiltInCallable$body$_EvaluateVisitor0($arguments, callable, nodeWithSpan);
+    },
+    _runBuiltInCallable$body$_EvaluateVisitor0($arguments, callable, nodeWithSpan) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, result, error, stackTrace, message, namedSet, _0_0, declaredArguments, i, t1, t2, t3, argument, t4, t5, t6, t7, rest, argumentList, exception, message0, _box_0, evaluated, oldCallableNode, $async$exception;
+      var $async$_async_evaluate0$_runBuiltInCallable$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_evaluateArguments$1($arguments), $async$_async_evaluate0$_runBuiltInCallable$3);
+            case 3:
+              // returning from await.
+              evaluated = $async$result;
+              oldCallableNode = $async$self._async_evaluate0$_callableNode;
+              $async$self._async_evaluate0$_callableNode = nodeWithSpan;
+              namedSet = new A.MapKeySet(evaluated._values[0], type$.MapKeySet_String);
+              _box_0.callback = _box_0.overload = null;
+              _0_0 = callable.callbackFor$2(J.get$length$asx(evaluated._values[2]), namedSet);
+              _box_0.overload = _0_0._0;
+              _box_0.callback = _0_0._1;
+              $async$self._async_evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure8(_box_0, evaluated, namedSet));
+              declaredArguments = _box_0.overload.$arguments;
+              i = J.get$length$asx(evaluated._values[2]), t1 = declaredArguments.length, t2 = type$._Future_Value_2, t3 = type$.Future_Value_2;
+            case 4:
+              // for condition
+              if (!(i < t1)) {
+                // goto after for
+                $async$goto = 6;
+                break;
+              }
+              argument = declaredArguments[i];
+              t4 = evaluated._values[2];
+              t5 = evaluated._values[0].remove$1(0, argument.name);
+              $async$goto = t5 == null ? 7 : 8;
+              break;
+            case 7:
+              // then
+              t5 = argument.defaultValue;
+              t6 = t5.accept$1($async$self);
+              if (!t3._is(t6)) {
+                t7 = new A._Future($.Zone__current, t2);
+                t7._state = 8;
+                t7._resultOrListeners = t6;
+                t6 = t7;
+              }
+              $async$goto = 9;
+              return A._asyncAwait(t6, $async$_async_evaluate0$_runBuiltInCallable$3);
+            case 9:
+              // returning from await.
+              t5 = $async$self._async_evaluate0$_withoutSlash$2($async$result, t5);
+            case 8:
+              // join
+              J.add$1$ax(t4, t5);
+            case 5:
+              // for update
+              ++i;
+              // goto for condition
+              $async$goto = 4;
+              break;
+            case 6:
+              // after for
+              if (_box_0.overload.restArgument != null) {
+                if (J.get$length$asx(evaluated._values[2]) > t1) {
+                  rest = J.sublist$1$ax(evaluated._values[2], t1);
+                  J.removeRange$2$ax(evaluated._values[2], t1, J.get$length$asx(evaluated._values[2]));
+                } else
+                  rest = B.List_empty19;
+                t1 = evaluated._values[0];
+                argumentList = A.SassArgumentList$0(rest, t1, evaluated._values[4] === B.ListSeparator_undecided_null_undecided0 ? B.ListSeparator_ECn0 : evaluated._values[4]);
+                J.add$1$ax(evaluated._values[2], argumentList);
+              } else
+                argumentList = null;
+              result = null;
+              $async$handler = 11;
+              $async$goto = 14;
+              return A._asyncAwait($async$self._async_evaluate0$_addExceptionSpanAsync$1$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure9(_box_0, evaluated), type$.Value_2), $async$_async_evaluate0$_runBuiltInCallable$3);
+            case 14:
+              // returning from await.
+              result = $async$result;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 13;
+              break;
+            case 11:
+              // catch
+              $async$handler = 10;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassException0)
+                throw $async$exception;
+              else {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                message = null;
+                try {
+                  message = A._asString(J.get$message$x(error));
+                } catch (exception) {
+                  message0 = J.toString$0$(error);
+                  message = message0;
+                }
+                A.throwWithTrace0($async$self._async_evaluate0$_exception$2(message, nodeWithSpan.get$span(nodeWithSpan)), error, stackTrace);
+              }
+              // goto after finally
+              $async$goto = 13;
+              break;
+            case 10:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 13:
+              // after finally
+              $async$self._async_evaluate0$_callableNode = oldCallableNode;
+              if (argumentList == null) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t1 = evaluated._values[0];
+              if (t1.get$isEmpty(t1)) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (argumentList._argument_list$_wereKeywordsAccessed) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t1 = evaluated._values[0];
+              t1 = A.pluralize0("argument", J.get$length$asx(t1.get$keys(t1)), null);
+              t2 = evaluated._values[0];
+              throw A.wrapException(A.MultiSpanSassRuntimeException$0("No " + t1 + " named " + A.toSentence0(J.map$1$1$ax(t2.get$keys(t2), new A._EvaluateVisitor__runBuiltInCallable_closure10(), type$.Object), "or") + ".", nodeWithSpan.get$span(nodeWithSpan), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([_box_0.overload.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), $async$self._async_evaluate0$_stackTrace$1(nodeWithSpan.get$span(nodeWithSpan)), null));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_runBuiltInCallable$3, $async$completer);
+    },
+    _async_evaluate0$_evaluateArguments$1($arguments) {
+      return this._evaluateArguments$body$_EvaluateVisitor0($arguments);
+    },
+    _evaluateArguments$body$_EvaluateVisitor0($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_5_Map_String_Value_named_and_Map_String_AstNode_namedNodes_and_List_Value_positional_and_List_AstNode_positionalNodes_and_ListSeparator_separator_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, _i, expression, nodeForSpan, t5, t6, named, namedNodes, $name, value, t7, restArgs, rest, restNodeForSpan, separator, keywordRestArgs, keywordRest, keywordRestNodeForSpan, positional, positionalNodes, $async$temp1, $async$temp2;
+      var $async$_async_evaluate0$_evaluateArguments$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              positional = A._setArrayType([], type$.JSArray_Value_2);
+              positionalNodes = A._setArrayType([], type$.JSArray_AstNode_2);
+              t1 = $arguments.positional, t2 = t1.length, t3 = type$._Future_Value_2, t4 = type$.Future_Value_2, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              expression = t1[_i];
+              nodeForSpan = $async$self._async_evaluate0$_expressionNode$1(expression);
+              t5 = expression.accept$1($async$self);
+              if (!t4._is(t5)) {
+                t6 = new A._Future($.Zone__current, t3);
+                t6._state = 8;
+                t6._resultOrListeners = t5;
+                t5 = t6;
+              }
+              $async$temp1 = positional;
+              $async$goto = 6;
+              return A._asyncAwait(t5, $async$_async_evaluate0$_evaluateArguments$1);
+            case 6:
+              // returning from await.
+              $async$temp1.push($async$self._async_evaluate0$_withoutSlash$2($async$result, nodeForSpan));
+              positionalNodes.push(nodeForSpan);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              t1 = type$.String;
+              named = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value_2);
+              t2 = type$.AstNode_2;
+              namedNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+              t5 = A.MapExtensions_get_pairs0($arguments.named, t1, type$.Expression_2), t5 = t5.get$iterator(t5);
+            case 7:
+              // for condition
+              if (!t5.moveNext$0()) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              t6 = t5.get$current(t5);
+              $name = t6._0;
+              value = t6._1;
+              nodeForSpan = $async$self._async_evaluate0$_expressionNode$1(value);
+              t6 = value.accept$1($async$self);
+              if (!t4._is(t6)) {
+                t7 = new A._Future($.Zone__current, t3);
+                t7._state = 8;
+                t7._resultOrListeners = t6;
+                t6 = t7;
+              }
+              $async$temp1 = named;
+              $async$temp2 = $name;
+              $async$goto = 9;
+              return A._asyncAwait(t6, $async$_async_evaluate0$_evaluateArguments$1);
+            case 9:
+              // returning from await.
+              $async$temp1.$indexSet(0, $async$temp2, $async$self._async_evaluate0$_withoutSlash$2($async$result, nodeForSpan));
+              namedNodes.$indexSet(0, $name, nodeForSpan);
+              // goto for condition
+              $async$goto = 7;
+              break;
+            case 8:
+              // after for
+              restArgs = $arguments.rest;
+              if (restArgs == null) {
+                $async$returnValue = new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, B.ListSeparator_undecided_null_undecided0]);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 10;
+              return A._asyncAwait(restArgs.accept$1($async$self), $async$_async_evaluate0$_evaluateArguments$1);
+            case 10:
+              // returning from await.
+              rest = $async$result;
+              restNodeForSpan = $async$self._async_evaluate0$_expressionNode$1(restArgs);
+              if (rest instanceof A.SassMap0) {
+                $async$self._async_evaluate0$_addRestMap$4(named, rest, restArgs, new A._EvaluateVisitor__evaluateArguments_closure11());
+                t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+                for (t4 = rest._map0$_contents, t4 = J.get$iterator$ax(t4.get$keys(t4)), t5 = type$.SassString_2; t4.moveNext$0();)
+                  t3.$indexSet(0, t5._as(t4.get$current(t4))._string0$_text, restNodeForSpan);
+                namedNodes.addAll$1(0, t3);
+                separator = B.ListSeparator_undecided_null_undecided0;
+              } else if (rest instanceof A.SassList0) {
+                t3 = rest._list1$_contents;
+                B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t3, new A._EvaluateVisitor__evaluateArguments_closure12($async$self, restNodeForSpan), A._arrayInstanceType(t3)._eval$1("MappedListIterable<1,Value0>")));
+                B.JSArray_methods.addAll$1(positionalNodes, A.List_List$filled(t3.length, restNodeForSpan, false, t2));
+                separator = rest._list1$_separator;
+                if (rest instanceof A.SassArgumentList0) {
+                  rest._argument_list$_wereKeywordsAccessed = true;
+                  rest._argument_list$_keywords.forEach$1(0, new A._EvaluateVisitor__evaluateArguments_closure13($async$self, named, restNodeForSpan, namedNodes));
+                }
+              } else {
+                positional.push($async$self._async_evaluate0$_withoutSlash$2(rest, restNodeForSpan));
+                positionalNodes.push(restNodeForSpan);
+                separator = B.ListSeparator_undecided_null_undecided0;
+              }
+              keywordRestArgs = $arguments.keywordRest;
+              if (keywordRestArgs == null) {
+                $async$returnValue = new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 11;
+              return A._asyncAwait(keywordRestArgs.accept$1($async$self), $async$_async_evaluate0$_evaluateArguments$1);
+            case 11:
+              // returning from await.
+              keywordRest = $async$result;
+              keywordRestNodeForSpan = $async$self._async_evaluate0$_expressionNode$1(keywordRestArgs);
+              if (keywordRest instanceof A.SassMap0) {
+                $async$self._async_evaluate0$_addRestMap$4(named, keywordRest, keywordRestArgs, new A._EvaluateVisitor__evaluateArguments_closure14());
+                t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+                for (t2 = keywordRest._map0$_contents, t2 = J.get$iterator$ax(t2.get$keys(t2)), t3 = type$.SassString_2; t2.moveNext$0();)
+                  t1.$indexSet(0, t3._as(t2.get$current(t2))._string0$_text, keywordRestNodeForSpan);
+                namedNodes.addAll$1(0, t1);
+                $async$returnValue = new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs.get$span(keywordRestArgs)));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_evaluateArguments$1, $async$completer);
+    },
+    _async_evaluate0$_evaluateMacroArguments$1(invocation) {
+      return this._evaluateMacroArguments$body$_EvaluateVisitor0(invocation);
+    },
+    _evaluateMacroArguments$body$_EvaluateVisitor0(invocation) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_List_Expression_and_Map_String_Expression_2),
+        $async$returnValue, $async$self = this, t2, positional, named, rest, restNodeForSpan, keywordRestArgs_, keywordRest, keywordRestNodeForSpan, t1, restArgs_;
+      var $async$_async_evaluate0$_evaluateMacroArguments$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = invocation.$arguments;
+              restArgs_ = t1.rest;
+              if (restArgs_ == null) {
+                $async$returnValue = new A._Record_2(t1.positional, t1.named);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t2 = t1.positional;
+              positional = A._setArrayType(t2.slice(0), A._arrayInstanceType(t2));
+              named = A.LinkedHashMap_LinkedHashMap$of(t1.named, type$.String, type$.Expression_2);
+              $async$goto = 3;
+              return A._asyncAwait(restArgs_.accept$1($async$self), $async$_async_evaluate0$_evaluateMacroArguments$1);
+            case 3:
+              // returning from await.
+              rest = $async$result;
+              restNodeForSpan = $async$self._async_evaluate0$_expressionNode$1(restArgs_);
+              if (rest instanceof A.SassMap0)
+                $async$self._async_evaluate0$_addRestMap$4(named, rest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure11(restArgs_));
+              else if (rest instanceof A.SassList0) {
+                t2 = rest._list1$_contents;
+                B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t2, new A._EvaluateVisitor__evaluateMacroArguments_closure12($async$self, restNodeForSpan, restArgs_), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,Expression0>")));
+                if (rest instanceof A.SassArgumentList0) {
+                  rest._argument_list$_wereKeywordsAccessed = true;
+                  rest._argument_list$_keywords.forEach$1(0, new A._EvaluateVisitor__evaluateMacroArguments_closure13($async$self, named, restNodeForSpan, restArgs_));
+                }
+              } else
+                positional.push(new A.ValueExpression0($async$self._async_evaluate0$_withoutSlash$2(rest, restNodeForSpan), restArgs_.get$span(restArgs_)));
+              keywordRestArgs_ = t1.keywordRest;
+              if (keywordRestArgs_ == null) {
+                $async$returnValue = new A._Record_2(positional, named);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = 4;
+              return A._asyncAwait(keywordRestArgs_.accept$1($async$self), $async$_async_evaluate0$_evaluateMacroArguments$1);
+            case 4:
+              // returning from await.
+              keywordRest = $async$result;
+              keywordRestNodeForSpan = $async$self._async_evaluate0$_expressionNode$1(keywordRestArgs_);
+              if (keywordRest instanceof A.SassMap0) {
+                $async$self._async_evaluate0$_addRestMap$4(named, keywordRest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure14($async$self, keywordRestNodeForSpan, keywordRestArgs_));
+                $async$returnValue = new A._Record_2(positional, named);
+                // goto return
+                $async$goto = 1;
+                break;
+              } else
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs_.get$span(keywordRestArgs_)));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_evaluateMacroArguments$1, $async$completer);
+    },
+    _async_evaluate0$_addRestMap$1$4(values, map, nodeWithSpan, convert) {
+      map._map0$_contents.forEach$1(0, new A._EvaluateVisitor__addRestMap_closure2(this, values, convert, this._async_evaluate0$_expressionNode$1(nodeWithSpan), map, nodeWithSpan));
+    },
+    _async_evaluate0$_addRestMap$4(values, map, nodeWithSpan, convert) {
+      return this._async_evaluate0$_addRestMap$1$4(values, map, nodeWithSpan, convert, type$.dynamic);
+    },
+    _async_evaluate0$_verifyArguments$4(positional, named, $arguments, nodeWithSpan) {
+      return this._async_evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__verifyArguments_closure2($arguments, positional, named));
+    },
+    visitSelectorExpression$1(node) {
+      return this.visitSelectorExpression$body$_EvaluateVisitor0(node);
+    },
+    visitSelectorExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t1;
+      var $async$visitSelectorExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+              t1 = t1 == null ? null : t1.originalSelector.get$asSassList();
+              $async$returnValue = t1 == null ? B.C__SassNull0 : t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSelectorExpression$1, $async$completer);
+    },
+    visitStringExpression$1(node) {
+      return this.visitStringExpression$body$_EvaluateVisitor0(node);
+    },
+    visitStringExpression$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassString_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, _i, value, t5, _0_0, text, oldInSupportsDeclaration;
+      var $async$visitStringExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldInSupportsDeclaration = $async$self._async_evaluate0$_inSupportsDeclaration;
+              $async$self._async_evaluate0$_inSupportsDeclaration = false;
+              t1 = A._setArrayType([], type$.JSArray_String);
+              t2 = node.text.contents, t3 = t2.length, t4 = type$.Expression_2, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              value = t2[_i];
+              if (typeof value == "string") {
+                t5 = value;
+                // goto break $label0$0
+                $async$goto = 6;
+                break;
+              }
+              $async$goto = t4._is(value) ? 7 : 8;
+              break;
+            case 7:
+              // then
+              $async$goto = 9;
+              return A._asyncAwait(value.accept$1($async$self), $async$visitStringExpression$1);
+            case 9:
+              // returning from await.
+              _0_0 = $async$result;
+              $label1$1: {
+                if (_0_0 instanceof A.SassString0) {
+                  text = _0_0._string0$_text;
+                  t5 = text;
+                  break $label1$1;
+                }
+                t5 = $async$self._async_evaluate0$_serialize$3$quote(_0_0, value, false);
+                break $label1$1;
+              }
+              // goto break $label0$0
+              $async$goto = 6;
+              break;
+            case 8:
+              // join
+              t5 = A.throwExpression(A.UnsupportedError$("Unknown interpolation value " + A.S(value)));
+            case 6:
+              // break $label0$0
+              t1.push(t5);
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              t1 = B.JSArray_methods.join$0(t1);
+              $async$self._async_evaluate0$_inSupportsDeclaration = oldInSupportsDeclaration;
+              $async$returnValue = new A.SassString0(t1, node.hasQuotes);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitStringExpression$1, $async$completer);
+    },
+    visitSupportsExpression$1(expression) {
+      return this.visitSupportsExpression$body$_EvaluateVisitor0(expression);
+    },
+    visitSupportsExpression$body$_EvaluateVisitor0(expression) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassString_2),
+        $async$returnValue, $async$self = this, $async$temp1;
+      var $async$visitSupportsExpression$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_visitSupportsCondition$1(expression.condition), $async$visitSupportsExpression$1);
+            case 3:
+              // returning from await.
+              $async$returnValue = new $async$temp1.SassString0($async$result, false);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitSupportsExpression$1, $async$completer);
+    },
+    visitCssAtRule$1(node) {
+      return this.visitCssAtRule$body$_EvaluateVisitor0(node);
+    },
+    visitCssAtRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, wasInKeyframes, wasInUnknownAtRule, t1;
+      var $async$visitCssAtRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.At_rul, node.span));
+              if (node.isChildless) {
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").addChild$1(A.ModifiableCssAtRule$0(node.name, node.span, true, node.value));
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              wasInKeyframes = $async$self._async_evaluate0$_inKeyframes;
+              wasInUnknownAtRule = $async$self._async_evaluate0$_inUnknownAtRule;
+              t1 = node.name;
+              if (A.unvendor0(t1.value) === "keyframes")
+                $async$self._async_evaluate0$_inKeyframes = true;
+              else
+                $async$self._async_evaluate0$_inUnknownAtRule = true;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$0(t1, node.span, false, node.value), new A._EvaluateVisitor_visitCssAtRule_closure5($async$self, node), false, new A._EvaluateVisitor_visitCssAtRule_closure6(), type$.ModifiableCssAtRule_2, type$.Null), $async$visitCssAtRule$1);
+            case 3:
+              // returning from await.
+              $async$self._async_evaluate0$_inUnknownAtRule = wasInUnknownAtRule;
+              $async$self._async_evaluate0$_inKeyframes = wasInKeyframes;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssAtRule$1, $async$completer);
+    },
+    visitCssComment$1(node) {
+      return this.visitCssComment$body$_EvaluateVisitor0(node);
+    },
+    visitCssComment$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssComment$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") === $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root") && $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root").children._collection$_source))
+                $async$self._async_evaluate0$__endOfImports = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") + 1;
+              $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").addChild$1(new A.ModifiableCssComment0(node.text, node.span));
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssComment$1, $async$completer);
+    },
+    visitCssDeclaration$1(node) {
+      return this.visitCssDeclaration$body$_EvaluateVisitor0(node);
+    },
+    visitCssDeclaration$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssDeclaration$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").addChild$1(A.ModifiableCssDeclaration$0(node.name, node.value, node.span, node.parsedAsCustomProperty, node.valueSpanForMap));
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssDeclaration$1, $async$completer);
+    },
+    visitCssImport$1(node) {
+      return this.visitCssImport$body$_EvaluateVisitor0(node);
+    },
+    visitCssImport$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, modifiableNode;
+      var $async$visitCssImport$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              modifiableNode = new A.ModifiableCssImport0(node.url, node.modifiers, node.span);
+              if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") !== $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root"))
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").addChild$1(modifiableNode);
+              else if ($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") === J.get$length$asx($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root").children._collection$_source)) {
+                $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__root, "_root").addChild$1(modifiableNode);
+                $async$self._async_evaluate0$__endOfImports = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__endOfImports, "_endOfImports") + 1;
+              } else {
+                t1 = $async$self._async_evaluate0$_outOfOrderImports;
+                (t1 == null ? $async$self._async_evaluate0$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport_2) : t1).push(modifiableNode);
+              }
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssImport$1, $async$completer);
+    },
+    visitCssKeyframeBlock$1(node) {
+      return this.visitCssKeyframeBlock$body$_EvaluateVisitor0(node);
+    },
+    visitCssKeyframeBlock$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssKeyframeBlock$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$0(node.selector, node.span), new A._EvaluateVisitor_visitCssKeyframeBlock_closure5($async$self, node), false, new A._EvaluateVisitor_visitCssKeyframeBlock_closure6(), type$.ModifiableCssKeyframeBlock_2, type$.Null), $async$visitCssKeyframeBlock$1);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssKeyframeBlock$1, $async$completer);
+    },
+    visitCssMediaRule$1(node) {
+      return this.visitCssMediaRule$body$_EvaluateVisitor0(node);
+    },
+    visitCssMediaRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, mergedQueries, t1, mergedSources, t2, t3;
+      var $async$visitCssMediaRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Media_, node.span));
+              mergedQueries = A.NullableExtension_andThen0($async$self._async_evaluate0$_mediaQueries, new A._EvaluateVisitor_visitCssMediaRule_closure8($async$self, node));
+              t1 = mergedQueries == null;
+              if (!t1 && J.get$isEmpty$asx(mergedQueries)) {
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (t1)
+                mergedSources = B.Set_empty5;
+              else {
+                t2 = $async$self._async_evaluate0$_mediaQuerySources;
+                t2.toString;
+                t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery_2);
+                t3 = $async$self._async_evaluate0$_mediaQueries;
+                t3.toString;
+                t2.addAll$1(0, t3);
+                t2.addAll$1(0, node.queries);
+                mergedSources = t2;
+              }
+              t1 = t1 ? node.queries : mergedQueries;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$0(t1, node.span), new A._EvaluateVisitor_visitCssMediaRule_closure9($async$self, mergedQueries, node, mergedSources), false, new A._EvaluateVisitor_visitCssMediaRule_closure10(mergedSources), type$.ModifiableCssMediaRule_2, type$.Null), $async$visitCssMediaRule$1);
+            case 3:
+              // returning from await.
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssMediaRule$1, $async$completer);
+    },
+    visitCssStyleRule$1(node) {
+      return this.visitCssStyleRule$body$_EvaluateVisitor0(node);
+    },
+    visitCssStyleRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, styleRule, t2, nest, t3, originalSelector, rule, oldAtRootExcludingStyleRule, _0_1, lastChild;
+      var $async$visitCssStyleRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Style_n, node.span));
+              else if ($async$self._async_evaluate0$_inKeyframes && $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent") instanceof A.ModifiableCssKeyframeBlock0)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Style_k, node.span));
+              t1 = $async$self._async_evaluate0$_atRootExcludingStyleRule;
+              styleRule = t1 ? null : $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+              t2 = t1 ? null : $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+              t2 = t2 == null ? null : t2.fromPlainCss;
+              nest = t2 !== true;
+              t2 = node._style_rule0$_selector._box0$_inner;
+              if (nest) {
+                t2 = t2.value;
+                t3 = styleRule == null ? null : styleRule.originalSelector;
+                originalSelector = t2.nestWithin$3$implicitParent$preserveParentSelectors(t3, !t1, node.fromPlainCss);
+              } else
+                originalSelector = t2.value;
+              rule = A.ModifiableCssStyleRule$0($async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__extensionStore, "_extensionStore").addSelector$2(originalSelector, $async$self._async_evaluate0$_mediaQueries), node.span, node.fromPlainCss, originalSelector);
+              oldAtRootExcludingStyleRule = $async$self._async_evaluate0$_atRootExcludingStyleRule;
+              $async$self._async_evaluate0$_atRootExcludingStyleRule = false;
+              t1 = nest ? new A._EvaluateVisitor_visitCssStyleRule_closure5() : null;
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitCssStyleRule_closure6($async$self, rule, node), false, t1, type$.ModifiableCssStyleRule_2, type$.Null), $async$visitCssStyleRule$1);
+            case 2:
+              // returning from await.
+              $async$self._async_evaluate0$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+              t1 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent").children._collection$_source;
+              t2 = J.getInterceptor$asx(t1);
+              _0_1 = t2.get$length(t1);
+              if (_0_1 >= 1) {
+                lastChild = t2.elementAt$1(t1, _0_1 - 1);
+                t1 = styleRule == null;
+              } else {
+                lastChild = null;
+                t1 = false;
+              }
+              if (t1)
+                lastChild.isGroupEnd = true;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssStyleRule$1, $async$completer);
+    },
+    visitCssStylesheet$1(node) {
+      return this.visitCssStylesheet$body$_EvaluateVisitor0(node);
+    },
+    visitCssStylesheet$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1;
+      var $async$visitCssStylesheet$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.get$iterator$ax(node.get$children(node));
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              $async$goto = 4;
+              return A._asyncAwait(t1.get$current(t1).accept$1($async$self), $async$visitCssStylesheet$1);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssStylesheet$1, $async$completer);
+    },
+    visitCssSupportsRule$1(node) {
+      return this.visitCssSupportsRule$body$_EvaluateVisitor0(node);
+    },
+    visitCssSupportsRule$body$_EvaluateVisitor0(node) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$visitCssSupportsRule$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if ($async$self._async_evaluate0$_declarationName != null)
+                throw A.wrapException($async$self._async_evaluate0$_exception$2(string$.Suppor, node.span));
+              $async$goto = 2;
+              return A._asyncAwait($async$self._async_evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssSupportsRule$0(node.condition, node.span), new A._EvaluateVisitor_visitCssSupportsRule_closure5($async$self, node), false, new A._EvaluateVisitor_visitCssSupportsRule_closure6(), type$.ModifiableCssSupportsRule_2, type$.Null), $async$visitCssSupportsRule$1);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$visitCssSupportsRule$1, $async$completer);
+    },
+    _async_evaluate0$_handleReturn$1$2(list, callback) {
+      return this._handleReturn$body$_EvaluateVisitor0(list, callback);
+    },
+    _async_evaluate0$_handleReturn$2(list, callback) {
+      return this._async_evaluate0$_handleReturn$1$2(list, callback, type$.dynamic);
+    },
+    _handleReturn$body$_EvaluateVisitor0(list, callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, t1, _i, _0_0;
+      var $async$_async_evaluate0$_handleReturn$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = list.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < list.length)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(callback.call$1(list[_i]), $async$_async_evaluate0$_handleReturn$1$2);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              list.length === t1 || (0, A.throwConcurrentModificationError)(list), ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_handleReturn$1$2, $async$completer);
+    },
+    _async_evaluate0$_withEnvironment$1$2(environment, callback, $T) {
+      return this._withEnvironment$body$_EvaluateVisitor0(environment, callback, $T, $T);
+    },
+    _withEnvironment$body$_EvaluateVisitor0(environment, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, result, oldEnvironment;
+      var $async$_async_evaluate0$_withEnvironment$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldEnvironment = $async$self._async_evaluate0$_environment;
+              $async$self._async_evaluate0$_environment = environment;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate0$_withEnvironment$1$2);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_environment = oldEnvironment;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_withEnvironment$1$2, $async$completer);
+    },
+    _async_evaluate0$_interpolationToValue$3$trim$warnForColor(interpolation, trim, warnForColor) {
+      return this._interpolationToValue$body$_EvaluateVisitor0(interpolation, trim, warnForColor);
+    },
+    _async_evaluate0$_interpolationToValue$1(interpolation) {
+      return this._async_evaluate0$_interpolationToValue$3$trim$warnForColor(interpolation, false, false);
+    },
+    _async_evaluate0$_interpolationToValue$2$warnForColor(interpolation, warnForColor) {
+      return this._async_evaluate0$_interpolationToValue$3$trim$warnForColor(interpolation, false, warnForColor);
+    },
+    _interpolationToValue$body$_EvaluateVisitor0(interpolation, trim, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.CssValue_String_2),
+        $async$returnValue, $async$self = this, result, t1;
+      var $async$_async_evaluate0$_interpolationToValue$3$trim$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolation$2$warnForColor(interpolation, warnForColor), $async$_async_evaluate0$_interpolationToValue$3$trim$warnForColor);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              t1 = trim ? A.trimAscii0(result, true) : result;
+              $async$returnValue = new A.CssValue0(t1, interpolation.span, type$.CssValue_String_2);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_interpolationToValue$3$trim$warnForColor, $async$completer);
+    },
+    _async_evaluate0$_performInterpolation$2$warnForColor(interpolation, warnForColor) {
+      return this._performInterpolation$body$_EvaluateVisitor0(interpolation, warnForColor);
+    },
+    _async_evaluate0$_performInterpolation$1(interpolation) {
+      return this._async_evaluate0$_performInterpolation$2$warnForColor(interpolation, false);
+    },
+    _performInterpolation$body$_EvaluateVisitor0(interpolation, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this;
+      var $async$_async_evaluate0$_performInterpolation$2$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, false, warnForColor), $async$_async_evaluate0$_performInterpolation$2$warnForColor);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result._0;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_performInterpolation$2$warnForColor, $async$completer);
+    },
+    _async_evaluate0$_performInterpolationWithMap$2$warnForColor(interpolation, warnForColor) {
+      return this._performInterpolationWithMap$body$_EvaluateVisitor0(interpolation, true);
+    },
+    _performInterpolationWithMap$body$_EvaluateVisitor0(interpolation, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_String_and_InterpolationMap_2),
+        $async$returnValue, $async$self = this, _0_0, result, map;
+      var $async$_async_evaluate0$_performInterpolationWithMap$2$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, true, true), $async$_async_evaluate0$_performInterpolationWithMap$2$warnForColor);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              result = _0_0._0;
+              map = _0_0._1;
+              map.toString;
+              $async$returnValue = new A._Record_2(result, map);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_performInterpolationWithMap$2$warnForColor, $async$completer);
+    },
+    _async_evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, sourceMap, warnForColor) {
+      return this._performInterpolationHelper$body$_EvaluateVisitor0(interpolation, sourceMap, warnForColor);
+    },
+    _performInterpolationHelper$body$_EvaluateVisitor0(interpolation, sourceMap, warnForColor) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_String_and_nullable_InterpolationMap_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, t5, t6, t7, first, _i, t8, value, result, t9, result0, targetLocations, oldInSupportsDeclaration;
+      var $async$_async_evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              targetLocations = sourceMap ? A._setArrayType([], type$.JSArray_SourceLocation) : null;
+              oldInSupportsDeclaration = $async$self._async_evaluate0$_inSupportsDeclaration;
+              $async$self._async_evaluate0$_inSupportsDeclaration = false;
+              t1 = interpolation.contents, t2 = t1.length, t3 = type$.Expression_2, t4 = targetLocations == null, t5 = type$.JSArray_Object, t6 = interpolation.span, t7 = type$.Object, first = true, _i = 0, t8 = "";
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              value = t1[_i];
+              if (!first)
+                if (!t4)
+                  targetLocations.push(A.SourceLocation$(t8.length, null, null, null));
+              if (typeof value == "string") {
+                t8 += value;
+                // goto for update
+                $async$goto = 4;
+                break;
+              }
+              t3._as(value);
+              $async$goto = 6;
+              return A._asyncAwait(value.accept$1($async$self), $async$_async_evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor);
+            case 6:
+              // returning from await.
+              result = $async$result;
+              if (warnForColor && $.$get$namesByColor0().containsKey$1(result)) {
+                t9 = A._setArrayType([""], t5);
+                result0 = A.List_List$from(t9, false, t7);
+                result0.fixed$length = Array;
+                result0.immutable$list = Array;
+                result0 = new A.Interpolation0(result0, t6);
+                result0.Interpolation$20(t9, t6);
+                t9 = $.$get$namesByColor0();
+                $async$self._async_evaluate0$_warn$2(string$.You_pr + A.S(t9.$index(0, result)) + string$.x20in_in + result.toString$0(0) + string$.x2c_whicw + A.S(t9.$index(0, result)) + string$.x22x29__If + new A.BinaryOperationExpression0(B.BinaryOperator_u150, new A.StringExpression0(result0, true), value, false).toString$0(0) + "'.", value.get$span(value));
+              }
+              t8 += $async$self._async_evaluate0$_serialize$3$quote(result, value, false);
+            case 4:
+              // for update
+              ++_i, first = false;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$self._async_evaluate0$_inSupportsDeclaration = oldInSupportsDeclaration;
+              $async$returnValue = new A._Record_2(t8.charCodeAt(0) == 0 ? t8 : t8, A.NullableExtension_andThen0(targetLocations, new A._EvaluateVisitor__performInterpolationHelper_closure2(interpolation)));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor, $async$completer);
+    },
+    _async_evaluate0$_evaluateToCss$2$quote(expression, quote) {
+      return this._evaluateToCss$body$_EvaluateVisitor0(expression, quote);
+    },
+    _async_evaluate0$_evaluateToCss$1(expression) {
+      return this._async_evaluate0$_evaluateToCss$2$quote(expression, true);
+    },
+    _evaluateToCss$body$_EvaluateVisitor0(expression, quote) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1;
+      var $async$_async_evaluate0$_evaluateToCss$2$quote = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = expression.accept$1($async$self);
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$_async_evaluate0$_evaluateToCss$2$quote);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$self._async_evaluate0$_serialize$3$quote($async$result, expression, quote);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_evaluateToCss$2$quote, $async$completer);
+    },
+    _async_evaluate0$_serialize$3$quote(value, nodeWithSpan, quote) {
+      return this._async_evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__serialize_closure2(value, quote));
+    },
+    _async_evaluate0$_serialize$2(value, nodeWithSpan) {
+      return this._async_evaluate0$_serialize$3$quote(value, nodeWithSpan, true);
+    },
+    _async_evaluate0$_expressionNode$1(expression) {
+      var t1;
+      if (expression instanceof A.VariableExpression0) {
+        t1 = this._async_evaluate0$_addExceptionSpan$2(expression, new A._EvaluateVisitor__expressionNode_closure2(this, expression));
+        return t1 == null ? expression : t1;
+      } else
+        return expression;
+    },
+    _async_evaluate0$_withParent$2$4$scopeWhen$through(node, callback, scopeWhen, through, $S, $T) {
+      return this._withParent$body$_EvaluateVisitor0(node, callback, scopeWhen, through, $S, $T, $T);
+    },
+    _async_evaluate0$_withParent$2$2(node, callback, $S, $T) {
+      return this._async_evaluate0$_withParent$2$4$scopeWhen$through(node, callback, true, null, $S, $T);
+    },
+    _async_evaluate0$_withParent$2$3$scopeWhen(node, callback, scopeWhen, $S, $T) {
+      return this._async_evaluate0$_withParent$2$4$scopeWhen$through(node, callback, scopeWhen, null, $S, $T);
+    },
+    _withParent$body$_EvaluateVisitor0(node, callback, scopeWhen, through, $S, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, t1, result;
+      var $async$_async_evaluate0$_withParent$2$4$scopeWhen$through = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$self._async_evaluate0$_addChild$2$through(node, through);
+              t1 = $async$self._async_evaluate0$_assertInModule$2($async$self._async_evaluate0$__parent, "__parent");
+              $async$self._async_evaluate0$__parent = node;
+              $async$goto = 3;
+              return A._asyncAwait($async$self._async_evaluate0$_environment.scope$1$2$when(callback, scopeWhen, $T), $async$_async_evaluate0$_withParent$2$4$scopeWhen$through);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$__parent = t1;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_withParent$2$4$scopeWhen$through, $async$completer);
+    },
+    _async_evaluate0$_addChild$2$through(node, through) {
+      var _0_0, grandparent, t1,
+        $parent = this._async_evaluate0$_assertInModule$2(this._async_evaluate0$__parent, "__parent");
+      if (through != null) {
+        for (; through.call$1($parent); $parent = _0_0) {
+          _0_0 = $parent._node$_parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$(string$.throug + node.toString$0(0) + ".", null));
+        }
+        if ($parent.get$hasFollowingSibling()) {
+          grandparent = $parent._node$_parent;
+          t1 = grandparent.children;
+          if ($parent.equalsIgnoringChildren$1(t1.get$last(t1)))
+            $parent = type$.ModifiableCssParentNode_2._as(t1.get$last(t1));
+          else {
+            $parent = $parent.copyWithoutChildren$0();
+            grandparent.addChild$1($parent);
+          }
+        }
+      }
+      $parent.addChild$1(node);
+    },
+    _async_evaluate0$_addChild$1(node) {
+      return this._async_evaluate0$_addChild$2$through(node, null);
+    },
+    _async_evaluate0$_withStyleRule$1$2(rule, callback, $T) {
+      return this._withStyleRule$body$_EvaluateVisitor0(rule, callback, $T, $T);
+    },
+    _withStyleRule$body$_EvaluateVisitor0(rule, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, result, oldRule;
+      var $async$_async_evaluate0$_withStyleRule$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldRule = $async$self._async_evaluate0$_styleRuleIgnoringAtRoot;
+              $async$self._async_evaluate0$_styleRuleIgnoringAtRoot = rule;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate0$_withStyleRule$1$2);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_styleRuleIgnoringAtRoot = oldRule;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_withStyleRule$1$2, $async$completer);
+    },
+    _async_evaluate0$_withMediaQueries$1$3(queries, sources, callback, $T) {
+      return this._withMediaQueries$body$_EvaluateVisitor0(queries, sources, callback, $T, $T);
+    },
+    _withMediaQueries$body$_EvaluateVisitor0(queries, sources, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, result, oldMediaQueries, oldSources;
+      var $async$_async_evaluate0$_withMediaQueries$1$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              oldMediaQueries = $async$self._async_evaluate0$_mediaQueries;
+              oldSources = $async$self._async_evaluate0$_mediaQuerySources;
+              $async$self._async_evaluate0$_mediaQueries = queries;
+              $async$self._async_evaluate0$_mediaQuerySources = sources;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate0$_withMediaQueries$1$3);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_mediaQueries = oldMediaQueries;
+              $async$self._async_evaluate0$_mediaQuerySources = oldSources;
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_withMediaQueries$1$3, $async$completer);
+    },
+    _async_evaluate0$_withStackFrame$1$3(member, nodeWithSpan, callback, $T) {
+      return this._withStackFrame$body$_EvaluateVisitor0(member, nodeWithSpan, callback, $T, $T);
+    },
+    _withStackFrame$body$_EvaluateVisitor0(member, nodeWithSpan, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, oldMember, result, t1;
+      var $async$_async_evaluate0$_withStackFrame$1$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._async_evaluate0$_stack;
+              t1.push(new A._Record_2($async$self._async_evaluate0$_member, nodeWithSpan));
+              oldMember = $async$self._async_evaluate0$_member;
+              $async$self._async_evaluate0$_member = member;
+              $async$goto = 3;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate0$_withStackFrame$1$3);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              $async$self._async_evaluate0$_member = oldMember;
+              t1.pop();
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_withStackFrame$1$3, $async$completer);
+    },
+    _async_evaluate0$_withoutSlash$2(value, nodeForSpan) {
+      var t1;
+      if (value instanceof A.SassNumber0)
+        t1 = value.asSlash != null;
+      else
+        t1 = false;
+      if (t1)
+        this._async_evaluate0$_warn$3(string$.Using__i + A.S(new A._EvaluateVisitor__withoutSlash_recommendation2().call$1(value)) + string$.x0a_Morex20, nodeForSpan.get$span(nodeForSpan), B.Deprecation_E8a);
+      return value.withoutSlash$0();
+    },
+    _async_evaluate0$_stackFrame$2(member, span) {
+      return A.frameForSpan0(span, member, A.NullableExtension_andThen0(span.get$sourceUrl(span), new A._EvaluateVisitor__stackFrame_closure2(this)));
+    },
+    _async_evaluate0$_stackTrace$1(span) {
+      var t2, t3, _i, t4, nodeWithSpan, _this = this,
+        t1 = A._setArrayType([], type$.JSArray_Frame);
+      for (t2 = _this._async_evaluate0$_stack, t3 = t2.length, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        t4 = t2[_i];
+        nodeWithSpan = t4._1;
+        t1.push(_this._async_evaluate0$_stackFrame$2(t4._0, nodeWithSpan.get$span(nodeWithSpan)));
+      }
+      if (span != null)
+        t1.push(_this._async_evaluate0$_stackFrame$2(_this._async_evaluate0$_member, span));
+      return A.Trace$(new A.ReversedListIterable(t1, type$.ReversedListIterable_Frame), null);
+    },
+    _async_evaluate0$_stackTrace$0() {
+      return this._async_evaluate0$_stackTrace$1(null);
+    },
+    _async_evaluate0$_warn$3(message, span, deprecation) {
+      var t1, trace, _this = this;
+      if (_this._async_evaluate0$_quietDeps)
+        if (!_this._async_evaluate0$_inDependency) {
+          t1 = _this._async_evaluate0$_currentCallable;
+          t1 = t1 == null ? null : t1.inDependency;
+          t1 = t1 === true;
+        } else
+          t1 = true;
+      else
+        t1 = false;
+      if (t1)
+        return;
+      if (!_this._async_evaluate0$_warningsEmitted.add$1(0, new A._Record_2(message, span)))
+        return;
+      trace = _this._async_evaluate0$_stackTrace$1(span);
+      t1 = _this._async_evaluate0$_logger;
+      if (deprecation == null)
+        t1.warn$3$span$trace(0, message, span, trace);
+      else
+        A.WarnForDeprecation_warnForDeprecation0(t1, deprecation, message, span, trace);
+    },
+    _async_evaluate0$_warn$2(message, span) {
+      return this._async_evaluate0$_warn$3(message, span, null);
+    },
+    _async_evaluate0$_exception$2(message, span) {
+      var t1, t2;
+      if (span == null) {
+        t1 = B.JSArray_methods.get$last(this._async_evaluate0$_stack)._1;
+        t1 = t1.get$span(t1);
+      } else
+        t1 = span;
+      t2 = this._async_evaluate0$_stackTrace$1(span);
+      return new A.SassRuntimeException0(t2, B.Set_empty, message, t1);
+    },
+    _async_evaluate0$_exception$1(message) {
+      return this._async_evaluate0$_exception$2(message, null);
+    },
+    _async_evaluate0$_multiSpanException$3(message, primaryLabel, secondaryLabels) {
+      var t1 = B.JSArray_methods.get$last(this._async_evaluate0$_stack)._1;
+      return A.MultiSpanSassRuntimeException$0(message, t1.get$span(t1), primaryLabel, secondaryLabels, this._async_evaluate0$_stackTrace$0(), null);
+    },
+    _async_evaluate0$_addExceptionSpan$1$2(nodeWithSpan, callback) {
+      var error, stackTrace, t1, exception,
+        addStackFrame = true;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassScriptException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error.withSpan$1(nodeWithSpan.get$span(nodeWithSpan));
+          A.throwWithTrace0(t1.withTrace$1(this._async_evaluate0$_stackTrace$1(addStackFrame ? nodeWithSpan.get$span(nodeWithSpan) : null)), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _async_evaluate0$_addExceptionSpan$2(nodeWithSpan, callback) {
+      return this._async_evaluate0$_addExceptionSpan$1$2(nodeWithSpan, callback, type$.dynamic);
+    },
+    _async_evaluate0$_addExceptionSpanAsync$1$3$addStackFrame(nodeWithSpan, callback, addStackFrame, $T) {
+      return this._addExceptionSpanAsync$body$_EvaluateVisitor0(nodeWithSpan, callback, addStackFrame, $T, $T);
+    },
+    _async_evaluate0$_addExceptionSpanAsync$1$2(nodeWithSpan, callback, $T) {
+      return this._async_evaluate0$_addExceptionSpanAsync$1$3$addStackFrame(nodeWithSpan, callback, true, $T);
+    },
+    _addExceptionSpanAsync$body$_EvaluateVisitor0(nodeWithSpan, callback, addStackFrame, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, $async$exception;
+      var $async$_async_evaluate0$_addExceptionSpanAsync$1$3$addStackFrame = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              t1 = callback.call$0();
+              $async$goto = 7;
+              return A._asyncAwait($T._eval$1("Future<0>")._is(t1) ? t1 : A._Future$value(t1, $T), $async$_async_evaluate0$_addExceptionSpanAsync$1$3$addStackFrame);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (t1 instanceof A.SassScriptException0) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                t1 = error.withSpan$1(nodeWithSpan.get$span(nodeWithSpan));
+                A.throwWithTrace0(t1.withTrace$1($async$self._async_evaluate0$_stackTrace$1(addStackFrame ? nodeWithSpan.get$span(nodeWithSpan) : null)), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_addExceptionSpanAsync$1$3$addStackFrame, $async$completer);
+    },
+    _async_evaluate0$_addExceptionTrace$1$1(callback, $T) {
+      return this._addExceptionTrace$body$_EvaluateVisitor0(callback, $T, $T);
+    },
+    _addExceptionTrace$body$_EvaluateVisitor0(callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, t2, $async$exception;
+      var $async$_async_evaluate0$_addExceptionTrace$1$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              t1 = callback.call$0();
+              $async$goto = 7;
+              return A._asyncAwait($T._eval$1("Future<0>")._is(t1) ? t1 : A._Future$value(t1, $T), $async$_async_evaluate0$_addExceptionTrace$1$1);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (type$.SassRuntimeException_2._is(t1))
+                throw $async$exception;
+              else if (t1 instanceof A.SassException0) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                t1 = error;
+                t2 = J.getInterceptor$z(t1);
+                A.throwWithTrace0(error.withTrace$1($async$self._async_evaluate0$_stackTrace$1(A.SourceSpanException.prototype.get$span.call(t2, t1))), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_addExceptionTrace$1$1, $async$completer);
+    },
+    _async_evaluate0$_addErrorSpan$1$2(nodeWithSpan, callback, $T) {
+      return this._addErrorSpan$body$_EvaluateVisitor0(nodeWithSpan, callback, $T, $T);
+    },
+    _addErrorSpan$body$_EvaluateVisitor0(nodeWithSpan, callback, $T, $async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$handler = 2, $async$currentError, $async$self = this, error, stackTrace, t1, exception, t2, t3, $async$exception;
+      var $async$_async_evaluate0$_addErrorSpan$1$2 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$handler = 4;
+              $async$goto = 7;
+              return A._asyncAwait(callback.call$0(), $async$_async_evaluate0$_addErrorSpan$1$2);
+            case 7:
+              // returning from await.
+              t1 = $async$result;
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+              $async$handler = 2;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 4:
+              // catch
+              $async$handler = 3;
+              $async$exception = $async$currentError;
+              t1 = A.unwrapException($async$exception);
+              if (type$.SassRuntimeException_2._is(t1)) {
+                error = t1;
+                stackTrace = A.getTraceFromException($async$exception);
+                if (!B.JSString_methods.startsWith$1(J.get$span$z(error).get$text(), "@error"))
+                  throw $async$exception;
+                t1 = error._span_exception$_message;
+                t2 = nodeWithSpan.get$span(nodeWithSpan);
+                t3 = $async$self._async_evaluate0$_stackTrace$0();
+                A.throwWithTrace0(new A.SassRuntimeException0(t3, B.Set_empty, t1, t2), error, stackTrace);
+              } else
+                throw $async$exception;
+              // goto after finally
+              $async$goto = 6;
+              break;
+            case 3:
+              // uncaught
+              // goto rethrow
+              $async$goto = 2;
+              break;
+            case 6:
+              // after finally
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+            case 2:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_evaluate0$_addErrorSpan$1$2, $async$completer);
+    }
+  };
+  A._EvaluateVisitor_closure38.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._async_evaluate0$_environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string0$_text, "_", "-");
+      return t1.globalVariableExists$2$namespace(t2, module == null ? null : module._string0$_text) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure39.prototype = {
+    call$1($arguments) {
+      var variable = J.$index$asx($arguments, 0).assertString$1("name"),
+        t1 = this.$this._async_evaluate0$_environment;
+      return t1.getVariable$1(A.stringReplaceAllUnchecked(variable._string0$_text, "_", "-")) != null ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure40.prototype = {
+    call$1($arguments) {
+      var module, t2, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._async_evaluate0$_environment;
+      t3 = variable._string0$_text;
+      t4 = A.stringReplaceAllUnchecked(t3, "_", "-");
+      return t2.getFunction$2$namespace(t4, module == null ? null : module._string0$_text) != null || t1._async_evaluate0$_builtInFunctions.containsKey$1(t3) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure41.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._async_evaluate0$_environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string0$_text, "_", "-");
+      return t1.getMixin$2$namespace(t2, module == null ? null : module._string0$_text) != null ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure42.prototype = {
+    call$1($arguments) {
+      var t1 = this.$this._async_evaluate0$_environment;
+      if (!t1._async_environment0$_inMixin)
+        throw A.wrapException(A.SassScriptException$0(string$.conten, null));
+      return t1._async_environment0$_content != null ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure43.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string0$_text,
+        module = this.$this._async_evaluate0$_environment._async_environment0$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs0(module.get$variables(), type$.String, t1), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString0(t4._0, true), t4._1);
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._EvaluateVisitor_closure44.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string0$_text,
+        module = this.$this._async_evaluate0$_environment._async_environment0$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs0(module.get$functions(module), type$.String, type$.AsyncCallable_2), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString0(t4._0, true), new A.SassFunction0(t4._1));
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._EvaluateVisitor_closure45.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string0$_text,
+        module = this.$this._async_evaluate0$_environment._async_environment0$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs0(module.get$mixins(), type$.String, type$.AsyncCallable_2), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString0(t4._0, true), new A.SassMixin0(t4._1));
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._EvaluateVisitor_closure46.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name"),
+        css = t1.$index($arguments, 1).get$isTruthy();
+      t1 = t1.$index($arguments, 2).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      if (css) {
+        if (module != null)
+          throw A.wrapException(string$.x24css_a);
+        return new A.SassFunction0(new A.PlainCssCallable0($name._string0$_text));
+      }
+      t1 = this.$this;
+      t2 = t1._async_evaluate0$_callableNode;
+      t2.toString;
+      callable = t1._async_evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor__closure14(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Function not found: " + $name.toString$0(0));
+      return new A.SassFunction0(callable);
+    },
+    $signature: 137
+  };
+  A._EvaluateVisitor__closure14.prototype = {
+    call$0() {
+      var local,
+        normalizedName = A.stringReplaceAllUnchecked(this.name._string0$_text, "_", "-"),
+        t1 = this.module,
+        namespace = t1 == null ? null : t1._string0$_text;
+      t1 = this.$this;
+      local = t1._async_evaluate0$_environment.getFunction$2$namespace(normalizedName, namespace);
+      if (local != null || namespace != null)
+        return local;
+      return t1._async_evaluate0$_builtInFunctions.$index(0, normalizedName);
+    },
+    $signature: 93
+  };
+  A._EvaluateVisitor_closure47.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._async_evaluate0$_callableNode;
+      t2.toString;
+      callable = t1._async_evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor__closure13(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Mixin not found: " + $name.toString$0(0));
+      return new A.SassMixin0(callable);
+    },
+    $signature: 241
+  };
+  A._EvaluateVisitor__closure13.prototype = {
+    call$0() {
+      var t1 = this.$this._async_evaluate0$_environment,
+        t2 = A.stringReplaceAllUnchecked(this.name._string0$_text, "_", "-"),
+        t3 = this.module;
+      return t1.getMixin$2$namespace(t2, t3 == null ? null : t3._string0$_text);
+    },
+    $signature: 93
+  };
+  A._EvaluateVisitor_closure48.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_EvaluateVisitor_closure4($arguments);
+    },
+    $call$body$_EvaluateVisitor_closure4($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, invocation, callableNode, t1, $function, args;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.getInterceptor$asx($arguments);
+              $function = t1.$index($arguments, 0);
+              args = type$.SassArgumentList_2._as(t1.$index($arguments, 1));
+              t1 = $async$self.$this;
+              t2 = t1._async_evaluate0$_callableNode;
+              t2.toString;
+              t3 = A._setArrayType([], type$.JSArray_Expression_2);
+              t4 = type$.String;
+              t5 = type$.Expression_2;
+              t6 = t2.get$span(t2);
+              t7 = t2.get$span(t2);
+              args._argument_list$_wereKeywordsAccessed = true;
+              t8 = args._argument_list$_keywords;
+              if (t8.get$isEmpty(t8))
+                t2 = null;
+              else {
+                t9 = type$.Value_2;
+                t10 = A.LinkedHashMap_LinkedHashMap$_empty(t9, t9);
+                for (args._argument_list$_wereKeywordsAccessed = true, t8 = A.MapExtensions_get_pairs0(t8, t4, t9), t8 = t8.get$iterator(t8); t8.moveNext$0();) {
+                  t11 = t8.get$current(t8);
+                  t10.$indexSet(0, new A.SassString0(t11._0, false), t11._1);
+                }
+                t2 = new A.ValueExpression0(new A.SassMap0(A.ConstantMap_ConstantMap$from(t10, t9, t9)), t2.get$span(t2));
+              }
+              invocation = new A.ArgumentInvocation0(A.List_List$unmodifiable(t3, t5), A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t4, t5), new A.ValueExpression0(args, t7), t2, t6);
+              $async$goto = $function instanceof A.SassString0 ? 3 : 4;
+              break;
+            case 3:
+              // then
+              A.warnForDeprecation0(string$.Passina + $function.toString$0(0) + "))", B.Deprecation_MMc);
+              callableNode = t1._async_evaluate0$_callableNode;
+              t2 = $function._string0$_text;
+              t3 = callableNode.get$span(callableNode);
+              t1 = t1.visitFunctionExpression$1(new A.FunctionExpression0(null, A.stringReplaceAllUnchecked(t2, "_", "-"), t2, invocation, t3));
+              $async$goto = 5;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$1);
+            case 5:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              t2 = $function.assertFunction$1("function");
+              t3 = t1._async_evaluate0$_callableNode;
+              t3.toString;
+              $async$goto = 6;
+              return A._asyncAwait(t1._async_evaluate0$_runFunctionCallable$3(invocation, t2.callable, t3), $async$call$1);
+            case 6:
+              // returning from await.
+              t3 = $async$result;
+              $async$returnValue = t3;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 89
+  };
+  A._EvaluateVisitor_closure49.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_EvaluateVisitor_closure3($arguments);
+    },
+    $call$body$_EvaluateVisitor_closure3($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, withMap, t2, values, configuration, t3, t1, url;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.getInterceptor$asx($arguments);
+              url = A.Uri_parse(t1.$index($arguments, 0).assertString$1("url")._string0$_text);
+              t1 = t1.$index($arguments, 1).get$realNull();
+              withMap = t1 == null ? null : t1.assertMap$1("with")._map0$_contents;
+              t1 = $async$self.$this;
+              t2 = t1._async_evaluate0$_callableNode;
+              t2.toString;
+              if (withMap != null) {
+                values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue_2);
+                withMap.forEach$1(0, new A._EvaluateVisitor__closure11(values, t2.get$span(t2), t2));
+                configuration = new A.ExplicitConfiguration0(t2, values, null);
+              } else
+                configuration = B.Configuration_Map_empty_null0;
+              t3 = t2.get$span(t2);
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, "load-css()", t2, new A._EvaluateVisitor__closure12(t1), t3.get$sourceUrl(t3), configuration, true), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate0$_assertConfigurationIsEmpty$2$nameInError(configuration, true);
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 266
+  };
+  A._EvaluateVisitor__closure11.prototype = {
+    call$2(variable, value) {
+      var t1 = variable.assertString$1("with key"),
+        $name = A.stringReplaceAllUnchecked(t1._string0$_text, "_", "-");
+      t1 = this.values;
+      if (t1.containsKey$1($name))
+        throw A.wrapException("The variable $" + $name + " was configured twice.");
+      t1.$indexSet(0, $name, new A.ConfiguredValue0(value, this.span, this.callableNode));
+    },
+    $signature: 94
+  };
+  A._EvaluateVisitor__closure12.prototype = {
+    call$2(module, _) {
+      var t1 = this.$this;
+      return t1._async_evaluate0$_combineCss$2$clone(module, true).accept$1(t1);
+    },
+    $signature: 320
+  };
+  A._EvaluateVisitor_closure50.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_EvaluateVisitor_closure2($arguments);
+    },
+    $call$body$_EvaluateVisitor_closure2($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, callableNode, t2, t3, t4, t5, t1, mixin, args;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = J.getInterceptor$asx($arguments);
+              mixin = t1.$index($arguments, 0);
+              args = type$.SassArgumentList_2._as(t1.$index($arguments, 1));
+              t1 = $async$self.$this;
+              callableNode = t1._async_evaluate0$_callableNode;
+              t2 = callableNode.get$span(callableNode);
+              t3 = callableNode.get$span(callableNode);
+              t4 = type$.Expression_2;
+              t5 = A.List_List$unmodifiable(B.List_empty20, t4);
+              t4 = A.ConstantMap_ConstantMap$from(B.Map_empty14, type$.String, t4);
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_applyMixin$5(mixin.assertMixin$1("mixin").callable, t1._async_evaluate0$_environment._async_environment0$_content, new A.ArgumentInvocation0(t5, t4, new A.ValueExpression0(args, t3), null, t2), callableNode, callableNode), $async$call$1);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 266
+  };
+  A._EvaluateVisitor_run_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2),
+        $async$returnValue, $async$self = this, module, t2, t1, _0_0, url;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node;
+              _0_0 = t1.span.file.url;
+              url = null;
+              if (_0_0 != null) {
+                url = _0_0;
+                t2 = $async$self.$this;
+                t2._async_evaluate0$_activeModules.$indexSet(0, url, null);
+                if (!(t2._async_evaluate0$_nodeImporter != null && J.toString$0$(url) === "stdin"))
+                  t2._async_evaluate0$_loadedUrls.add$1(0, url);
+              }
+              t2 = $async$self.$this;
+              $async$goto = 3;
+              return A._asyncAwait(t2._async_evaluate0$_addExceptionTrace$1$1(new A._EvaluateVisitor_run__closure2(t2, $async$self.importer, t1), type$.Module_AsyncCallable_2), $async$call$0);
+            case 3:
+              // returning from await.
+              module = $async$result;
+              $async$returnValue = new A._Record_2_loadedUrls_stylesheet(t2._async_evaluate0$_loadedUrls, t2._async_evaluate0$_combineCss$1(module));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 321
+  };
+  A._EvaluateVisitor_run__closure2.prototype = {
+    call$0() {
+      return this.$this._async_evaluate0$_execute$2(this.importer, this.node);
+    },
+    $signature: 322
+  };
+  A._EvaluateVisitor__loadModule_closure5.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_1.builtInModule, false);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__loadModule_closure6.prototype = {
+    call$0() {
+      return this.$call$body$_EvaluateVisitor__loadModule_closure0();
+    },
+    $call$body$_EvaluateVisitor__loadModule_closure0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$handler = 1, $async$currentError, $async$next = [], $async$self = this, canonicalUrl, oldInDependency, isDependency, t4, message, t1, stylesheet, importer, t2, t3, _1_0, $async$temp1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1) {
+          $async$currentError = $async$result;
+          $async$goto = $async$handler;
+        }
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = {};
+              stylesheet = null;
+              importer = null;
+              t2 = $async$self.$this;
+              t3 = $async$self.nodeWithSpan;
+              $async$goto = 2;
+              return A._asyncAwait(t2._async_evaluate0$_loadStylesheet$3$baseUrl($async$self.url.toString$0(0), t3.get$span(t3), $async$self.baseUrl), $async$call$0);
+            case 2:
+              // returning from await.
+              _1_0 = $async$result;
+              stylesheet = _1_0._0;
+              importer = _1_0._1;
+              isDependency = _1_0._2;
+              canonicalUrl = stylesheet.span.file.url;
+              if (canonicalUrl != null) {
+                t4 = t2._async_evaluate0$_activeModules;
+                if (t4.containsKey$1(canonicalUrl)) {
+                  if ($async$self.namesInErrors) {
+                    t1 = canonicalUrl;
+                    t3 = $.$get$context();
+                    t1.toString;
+                    message = "Module loop: " + t3.prettyUri$1(t1) + " is already being loaded.";
+                  } else
+                    message = string$.Modulel;
+                  t1 = A.NullableExtension_andThen0(t4.$index(0, canonicalUrl), new A._EvaluateVisitor__loadModule__closure5(t2, message));
+                  throw A.wrapException(t1 == null ? t2._async_evaluate0$_exception$1(message) : t1);
+                } else
+                  t4.$indexSet(0, canonicalUrl, t3);
+              }
+              t4 = t2._async_evaluate0$_modules.containsKey$1(canonicalUrl);
+              oldInDependency = t2._async_evaluate0$_inDependency;
+              t2._async_evaluate0$_inDependency = isDependency;
+              t1.module = null;
+              $async$handler = 3;
+              $async$temp1 = t1;
+              $async$goto = 6;
+              return A._asyncAwait(t2._async_evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, $async$self.configuration, $async$self.namesInErrors, t3), $async$call$0);
+            case 6:
+              // returning from await.
+              $async$temp1.module = $async$result;
+              $async$next.push(5);
+              // goto finally
+              $async$goto = 4;
+              break;
+            case 3:
+              // uncaught
+              $async$next = [1];
+            case 4:
+              // finally
+              $async$handler = 1;
+              t2._async_evaluate0$_activeModules.remove$1(0, canonicalUrl);
+              t2._async_evaluate0$_inDependency = oldInDependency;
+              // goto the next finally handler
+              $async$goto = $async$next.pop();
+              break;
+            case 5:
+              // after finally
+              $async$goto = 7;
+              return A._asyncAwait(t2._async_evaluate0$_addExceptionSpanAsync$1$3$addStackFrame(t3, new A._EvaluateVisitor__loadModule__closure6(t1, $async$self.callback, !t4), false, type$.void), $async$call$0);
+            case 7:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+            case 1:
+              // rethrow
+              return A._asyncRethrow($async$currentError, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__loadModule__closure5.prototype = {
+    call$1(previousLoad) {
+      return this.$this._async_evaluate0$_multiSpanException$3(this.message, "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 95
+  };
+  A._EvaluateVisitor__loadModule__closure6.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_0.module, this.firstLoad);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__execute_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t3, t4, t5, t6, t1, oldImporter, oldStylesheet, oldRoot, oldPreModuleComments, oldParent, oldEndOfImports, oldOutOfOrderImports, oldExtensionStore, t2, oldStyleRule, oldMediaQueries, oldDeclarationName, oldInUnknownAtRule, oldInKeyframes, oldConfiguration;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              oldImporter = t1._async_evaluate0$_importer;
+              oldStylesheet = t1._async_evaluate0$__stylesheet;
+              oldRoot = t1._async_evaluate0$__root;
+              oldPreModuleComments = t1._async_evaluate0$_preModuleComments;
+              oldParent = t1._async_evaluate0$__parent;
+              oldEndOfImports = t1._async_evaluate0$__endOfImports;
+              oldOutOfOrderImports = t1._async_evaluate0$_outOfOrderImports;
+              oldExtensionStore = t1._async_evaluate0$__extensionStore;
+              t2 = t1._async_evaluate0$_atRootExcludingStyleRule;
+              oldStyleRule = t2 ? null : t1._async_evaluate0$_styleRuleIgnoringAtRoot;
+              oldMediaQueries = t1._async_evaluate0$_mediaQueries;
+              oldDeclarationName = t1._async_evaluate0$_declarationName;
+              oldInUnknownAtRule = t1._async_evaluate0$_inUnknownAtRule;
+              oldInKeyframes = t1._async_evaluate0$_inKeyframes;
+              oldConfiguration = t1._async_evaluate0$_configuration;
+              t1._async_evaluate0$_importer = $async$self.importer;
+              t3 = t1._async_evaluate0$__stylesheet = $async$self.stylesheet;
+              t4 = t3.span;
+              t5 = t1._async_evaluate0$__parent = t1._async_evaluate0$__root = A.ModifiableCssStylesheet$0(t4);
+              t1._async_evaluate0$__endOfImports = 0;
+              t1._async_evaluate0$_outOfOrderImports = null;
+              t1._async_evaluate0$__extensionStore = $async$self.extensionStore;
+              t1._async_evaluate0$_declarationName = t1._async_evaluate0$_mediaQueries = t1._async_evaluate0$_styleRuleIgnoringAtRoot = null;
+              t1._async_evaluate0$_inKeyframes = t1._async_evaluate0$_atRootExcludingStyleRule = t1._async_evaluate0$_inUnknownAtRule = false;
+              t6 = $async$self.configuration;
+              if (t6 != null)
+                t1._async_evaluate0$_configuration = t6;
+              $async$goto = 2;
+              return A._asyncAwait(t1.visitStylesheet$1(t3), $async$call$0);
+            case 2:
+              // returning from await.
+              t3 = t1._async_evaluate0$_outOfOrderImports == null ? t5 : new A.CssStylesheet0(new A.UnmodifiableListView(t1._async_evaluate0$_addOutOfOrderImports$0(), type$.UnmodifiableListView_CssNode_2), t4);
+              $async$self.css.__late_helper$_value = t3;
+              $async$self.preModuleComments.__late_helper$_value = t1._async_evaluate0$_preModuleComments;
+              t1._async_evaluate0$_importer = oldImporter;
+              t1._async_evaluate0$__stylesheet = oldStylesheet;
+              t1._async_evaluate0$__root = oldRoot;
+              t1._async_evaluate0$_preModuleComments = oldPreModuleComments;
+              t1._async_evaluate0$__parent = oldParent;
+              t1._async_evaluate0$__endOfImports = oldEndOfImports;
+              t1._async_evaluate0$_outOfOrderImports = oldOutOfOrderImports;
+              t1._async_evaluate0$__extensionStore = oldExtensionStore;
+              t1._async_evaluate0$_styleRuleIgnoringAtRoot = oldStyleRule;
+              t1._async_evaluate0$_mediaQueries = oldMediaQueries;
+              t1._async_evaluate0$_declarationName = oldDeclarationName;
+              t1._async_evaluate0$_inUnknownAtRule = oldInUnknownAtRule;
+              t1._async_evaluate0$_atRootExcludingStyleRule = t2;
+              t1._async_evaluate0$_inKeyframes = oldInKeyframes;
+              t1._async_evaluate0$_configuration = oldConfiguration;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__combineCss_closure5.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 114
+  };
+  A._EvaluateVisitor__combineCss_closure6.prototype = {
+    call$1(target) {
+      return !this.selectors.contains$1(0, target);
+    },
+    $signature: 15
+  };
+  A._EvaluateVisitor__combineCss_visitModule2.prototype = {
+    call$1(module) {
+      var t1, t2, t3, t4, _i, upstream, _1_0, statements, index, _this = this;
+      if (!_this.seen.add$1(0, module))
+        return;
+      if (_this.clone)
+        module = module.cloneCss$0();
+      for (t1 = module.get$upstream(), t2 = t1.length, t3 = _this.css, t4 = _this.imports, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        upstream = t1[_i];
+        if (upstream.get$transitivelyContainsCss()) {
+          _1_0 = module.get$preModuleComments().$index(0, upstream);
+          if (_1_0 != null)
+            B.JSArray_methods.addAll$1(t3.length === 0 ? t4 : t3, _1_0);
+          _this.call$1(upstream);
+        }
+      }
+      _this.sorted.addFirst$1(module);
+      t1 = module.get$css(module);
+      statements = t1.get$children(t1);
+      index = _this.$this._async_evaluate0$_indexAfterImports$1(statements);
+      t1 = J.getInterceptor$ax(statements);
+      B.JSArray_methods.addAll$1(t4, t1.getRange$2(statements, 0, index));
+      B.JSArray_methods.addAll$1(t3, t1.getRange$2(statements, index, t1.get$length(statements)));
+    },
+    $signature: 324
+  };
+  A._EvaluateVisitor__extendModules_closure5.prototype = {
+    call$1(target) {
+      return !this.originalSelectors.contains$1(0, target);
+    },
+    $signature: 15
+  };
+  A._EvaluateVisitor__extendModules_closure6.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_ExtensionStore_2);
+    },
+    $signature: 234
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure6.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure17.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__parent, "__parent");
+              t1._async_evaluate0$__parent = $async$self.newParent;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_environment.scope$1$2$when(callback, $async$self.node.hasDeclarations, type$.void), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate0$__parent = t2;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure18.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, oldAtRootExcludingStyleRule;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              oldAtRootExcludingStyleRule = t1._async_evaluate0$_atRootExcludingStyleRule;
+              t1._async_evaluate0$_atRootExcludingStyleRule = true;
+              $async$goto = 2;
+              return A._asyncAwait($async$self.innerScope.call$1(callback), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate0$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure19.prototype = {
+    call$1(callback) {
+      return this.$this._async_evaluate0$_withMediaQueries$1$3(null, null, new A._EvaluateVisitor__scopeForAtRoot__closure2(this.innerScope, callback), type$.Null);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot__closure2.prototype = {
+    call$0() {
+      return this.innerScope.call$1(this.callback);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure20.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, wasInKeyframes;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              wasInKeyframes = t1._async_evaluate0$_inKeyframes;
+              t1._async_evaluate0$_inKeyframes = false;
+              $async$goto = 2;
+              return A._asyncAwait($async$self.innerScope.call$1(callback), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate0$_inKeyframes = wasInKeyframes;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure21.prototype = {
+    call$1($parent) {
+      return $parent instanceof A.ModifiableCssAtRule0;
+    },
+    $signature: 232
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure22.prototype = {
+    call$1(callback) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, wasInUnknownAtRule;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              wasInUnknownAtRule = t1._async_evaluate0$_inUnknownAtRule;
+              t1._async_evaluate0$_inUnknownAtRule = false;
+              $async$goto = 2;
+              return A._asyncAwait($async$self.innerScope.call$1(callback), $async$call$1);
+            case 2:
+              // returning from await.
+              t1._async_evaluate0$_inUnknownAtRule = wasInUnknownAtRule;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 37
+  };
+  A._EvaluateVisitor_visitContentRule_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$returnValue, $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.content.declaration.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 6:
+              // returning from await.
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitDeclaration_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self._box_0.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitEachRule_closure8.prototype = {
+    call$1(value) {
+      var t1 = this.$this,
+        t2 = this.nodeWithSpan;
+      return t1._async_evaluate0$_environment.setLocalVariable$3(this._box_0.variable, t1._async_evaluate0$_withoutSlash$2(value, t2), t2);
+    },
+    $signature: 63
+  };
+  A._EvaluateVisitor_visitEachRule_closure9.prototype = {
+    call$1(value) {
+      return this.$this._async_evaluate0$_setMultipleVariables$3(this._box_0.variables, value, this.nodeWithSpan);
+    },
+    $signature: 63
+  };
+  A._EvaluateVisitor_visitEachRule_closure10.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      return t1._async_evaluate0$_handleReturn$2(_this.list.get$asList(), new A._EvaluateVisitor_visitEachRule__closure2(t1, _this.setVariables, _this.node));
+    },
+    $signature: 75
+  };
+  A._EvaluateVisitor_visitEachRule__closure2.prototype = {
+    call$1(element) {
+      var t1;
+      this.setVariables.call$1(element);
+      t1 = this.$this;
+      return t1._async_evaluate0$_handleReturn$2(this.node.children, new A._EvaluateVisitor_visitEachRule___closure2(t1));
+    },
+    $signature: 329
+  };
+  A._EvaluateVisitor_visitEachRule___closure2.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 98
+  };
+  A._EvaluateVisitor_visitAtRule_closure8.prototype = {
+    call$1(value) {
+      return this.$this._async_evaluate0$_interpolationToValue$3$trim$warnForColor(value, true, true);
+    },
+    $signature: 331
+  };
+  A._EvaluateVisitor_visitAtRule_closure9.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, _i, t1, styleRule;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              styleRule = t1._async_evaluate0$_atRootExcludingStyleRule ? null : t1._async_evaluate0$_styleRuleIgnoringAtRoot;
+              $async$goto = styleRule == null || t1._async_evaluate0$_inKeyframes || J.$eq$($async$self.name.value, "font-face") ? 2 : 4;
+              break;
+            case 2:
+              // then
+              t2 = $async$self.children, t3 = t2.length, _i = 0;
+            case 5:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              $async$goto = 8;
+              return A._asyncAwait(t2[_i].accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+            case 6:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 5;
+              break;
+            case 7:
+              // after for
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              $async$goto = 9;
+              return A._asyncAwait(t1._async_evaluate0$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$0(styleRule._style_rule0$_selector, styleRule.span, false, styleRule.originalSelector), new A._EvaluateVisitor_visitAtRule__closure2(t1, $async$self.children), false, type$.ModifiableCssStyleRule_2, type$.Null), $async$call$0);
+            case 9:
+              // returning from await.
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitAtRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitAtRule_closure10.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitForRule_closure14.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassNumber_2),
+        $async$returnValue, $async$self = this;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self.node.from.accept$1($async$self.$this), $async$call$0);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result.assertNumber$0();
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 229
+  };
+  A._EvaluateVisitor_visitForRule_closure15.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.SassNumber_2),
+        $async$returnValue, $async$self = this;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait($async$self.node.to.accept$1($async$self.$this), $async$call$0);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result.assertNumber$0();
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 229
+  };
+  A._EvaluateVisitor_visitForRule_closure16.prototype = {
+    call$0() {
+      return this.fromNumber.assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure17.prototype = {
+    call$0() {
+      var t1 = this.fromNumber;
+      return this.toNumber.coerce$2(t1.get$numeratorUnits(t1), t1.get$denominatorUnits(t1)).assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure18.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, i, t3, t4, t5, t6, t7, t8, _0_0, t1, t2, nodeWithSpan;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.node;
+              nodeWithSpan = t1._async_evaluate0$_expressionNode$1(t2.from);
+              i = $async$self.from, t3 = $async$self._box_0, t4 = $async$self.direction, t5 = t2.variable, t6 = $async$self.fromNumber, t2 = t2.children;
+            case 3:
+              // for condition
+              if (!(i !== t3.to)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              t7 = t1._async_evaluate0$_environment;
+              t8 = t6.get$numeratorUnits(t6);
+              t7.setLocalVariable$3(t5, A.SassNumber_SassNumber$withUnits0(i, t6.get$denominatorUnits(t6), t8), nodeWithSpan);
+              $async$goto = 6;
+              return A._asyncAwait(t1._async_evaluate0$_handleReturn$2(t2, new A._EvaluateVisitor_visitForRule__closure2(t1)), $async$call$0);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              i += t4;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 75
+  };
+  A._EvaluateVisitor_visitForRule__closure2.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 98
+  };
+  A._EvaluateVisitor_visitForwardRule_closure5.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._async_evaluate0$_registerCommentsForModule$1(module);
+      this.$this._async_evaluate0$_environment.forwardModule$2(module, this.node);
+    },
+    $signature: 109
+  };
+  A._EvaluateVisitor_visitForwardRule_closure6.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._async_evaluate0$_registerCommentsForModule$1(module);
+      this.$this._async_evaluate0$_environment.forwardModule$2(module, this.node);
+    },
+    $signature: 109
+  };
+  A._EvaluateVisitor__registerCommentsForModule_closure2.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_CssComment_2);
+    },
+    $signature: 228
+  };
+  A._EvaluateVisitor_visitIfRule_closure2.prototype = {
+    call$1(clause) {
+      var t1 = this.$this;
+      return t1._async_evaluate0$_environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitIfRule__closure2(t1, clause), true, clause.hasDeclarations, type$.nullable_Value_2);
+    },
+    $signature: 336
+  };
+  A._EvaluateVisitor_visitIfRule__closure2.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1._async_evaluate0$_handleReturn$2(this.clause.children, new A._EvaluateVisitor_visitIfRule___closure2(t1));
+    },
+    $signature: 75
+  };
+  A._EvaluateVisitor_visitIfRule___closure2.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 98
+  };
+  A._EvaluateVisitor__visitDynamicImport_closure2.prototype = {
+    call$0() {
+      return this.$call$body$_EvaluateVisitor__visitDynamicImport_closure0();
+    },
+    $call$body$_EvaluateVisitor__visitDynamicImport_closure0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$returnValue, $async$self = this, t1, t2, _0_0, stylesheet, importer, isDependency, url, t3, oldImporter, oldInDependency, loadsUserDefinedModules, children, t4, t5, t6, t7, t8, t9, t10, environment, module, visitor, _box_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              _box_0 = {};
+              _box_0.isDependency = _box_0.importer = _box_0.stylesheet = null;
+              t1 = $async$self.$this;
+              t2 = $async$self.$import;
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_evaluate0$_loadStylesheet$3$forImport(t2.urlString, t2.span, true), $async$call$0);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              stylesheet = _box_0.stylesheet = _0_0._0;
+              importer = _0_0._1;
+              _box_0.importer = importer;
+              isDependency = _0_0._2;
+              _box_0.isDependency = isDependency;
+              url = stylesheet.span.file.url;
+              if (url != null) {
+                t3 = t1._async_evaluate0$_activeModules;
+                if (t3.containsKey$1(url)) {
+                  t2 = A.NullableExtension_andThen0(t3.$index(0, url), new A._EvaluateVisitor__visitDynamicImport__closure11(t1));
+                  throw A.wrapException(t2 == null ? t1._async_evaluate0$_exception$1("This file is already being loaded.") : t2);
+                }
+                t3.$indexSet(0, url, t2);
+              }
+              t2 = stylesheet._stylesheet1$_uses;
+              t3 = type$.UnmodifiableListView_UseRule_2;
+              $async$goto = new A.UnmodifiableListView(t2, t3).get$length(0) === 0 && new A.UnmodifiableListView(stylesheet._stylesheet1$_forwards, type$.UnmodifiableListView_ForwardRule_2).get$length(0) === 0 ? 4 : 5;
+              break;
+            case 4:
+              // then
+              oldImporter = t1._async_evaluate0$_importer;
+              t2 = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__stylesheet, "_stylesheet");
+              oldInDependency = t1._async_evaluate0$_inDependency;
+              t1._async_evaluate0$_importer = importer;
+              t1._async_evaluate0$__stylesheet = stylesheet;
+              t1._async_evaluate0$_inDependency = isDependency;
+              $async$goto = 6;
+              return A._asyncAwait(t1.visitStylesheet$1(stylesheet), $async$call$0);
+            case 6:
+              // returning from await.
+              t1._async_evaluate0$_importer = oldImporter;
+              t1._async_evaluate0$__stylesheet = t2;
+              t1._async_evaluate0$_inDependency = oldInDependency;
+              t1._async_evaluate0$_activeModules.remove$1(0, url);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 5:
+              // join
+              t2 = new A.UnmodifiableListView(t2, t3);
+              if (!t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure12())) {
+                t2 = new A.UnmodifiableListView(stylesheet._stylesheet1$_forwards, type$.UnmodifiableListView_ForwardRule_2);
+                loadsUserDefinedModules = t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure13());
+              } else
+                loadsUserDefinedModules = true;
+              children = A._Cell$();
+              t2 = t1._async_evaluate0$_environment;
+              t3 = type$.String;
+              t4 = type$.Module_AsyncCallable_2;
+              t5 = type$.AstNode_2;
+              t6 = A._setArrayType([], type$.JSArray_Module_AsyncCallable_2);
+              t7 = t2._async_environment0$_variables;
+              t7 = A._setArrayType(t7.slice(0), A._arrayInstanceType(t7));
+              t8 = t2._async_environment0$_variableNodes;
+              t8 = A._setArrayType(t8.slice(0), A._arrayInstanceType(t8));
+              t9 = t2._async_environment0$_functions;
+              t9 = A._setArrayType(t9.slice(0), A._arrayInstanceType(t9));
+              t10 = t2._async_environment0$_mixins;
+              t10 = A._setArrayType(t10.slice(0), A._arrayInstanceType(t10));
+              environment = A.AsyncEnvironment$_0(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), A.LinkedHashMap_LinkedHashMap$_empty(t3, t5), A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t2._async_environment0$_importedModules, null, null, t6, t7, t8, t9, t10, t2._async_environment0$_content);
+              $async$goto = 7;
+              return A._asyncAwait(t1._async_evaluate0$_withEnvironment$1$2(environment, new A._EvaluateVisitor__visitDynamicImport__closure14(_box_0, t1, loadsUserDefinedModules, environment, children), type$.Null), $async$call$0);
+            case 7:
+              // returning from await.
+              module = environment.toDummyModule$0();
+              t1._async_evaluate0$_environment.importForwards$1(module);
+              $async$goto = loadsUserDefinedModules ? 8 : 9;
+              break;
+            case 8:
+              // then
+              $async$goto = module.transitivelyContainsCss ? 10 : 11;
+              break;
+            case 10:
+              // then
+              $async$goto = 12;
+              return A._asyncAwait(t1._async_evaluate0$_combineCss$2$clone(module, module.transitivelyContainsExtensions).accept$1(t1), $async$call$0);
+            case 12:
+              // returning from await.
+            case 11:
+              // join
+              visitor = new A._ImportedCssVisitor2(t1);
+              for (t2 = J.get$iterator$ax(children._readLocal$0()); t2.moveNext$0();)
+                t2.get$current(t2).accept$1(visitor);
+            case 9:
+              // join
+              t1._async_evaluate0$_activeModules.remove$1(0, url);
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure11.prototype = {
+    call$1(previousLoad) {
+      return this.$this._async_evaluate0$_multiSpanException$3("This file is already being loaded.", "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 95
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure12.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 227
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure13.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 226
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure14.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t7, t8, t1, oldImporter, t2, t3, t4, t5, oldOutOfOrderImports, oldConfiguration, oldInDependency, t6;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              oldImporter = t1._async_evaluate0$_importer;
+              t2 = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__stylesheet, "_stylesheet");
+              t3 = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__root, "_root");
+              t4 = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__parent, "__parent");
+              t5 = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__endOfImports, "_endOfImports");
+              oldOutOfOrderImports = t1._async_evaluate0$_outOfOrderImports;
+              oldConfiguration = t1._async_evaluate0$_configuration;
+              oldInDependency = t1._async_evaluate0$_inDependency;
+              t6 = $async$self._box_0;
+              t1._async_evaluate0$_importer = t6.importer;
+              t7 = t6.stylesheet;
+              t1._async_evaluate0$__stylesheet = t7;
+              t8 = $async$self.loadsUserDefinedModules;
+              if (t8) {
+                t7 = A.ModifiableCssStylesheet$0(t7.span);
+                t1._async_evaluate0$__root = t7;
+                t1._async_evaluate0$__parent = t1._async_evaluate0$_assertInModule$2(t7, "_root");
+                t1._async_evaluate0$__endOfImports = 0;
+                t1._async_evaluate0$_outOfOrderImports = null;
+              }
+              t1._async_evaluate0$_inDependency = t6.isDependency;
+              t7 = new A.UnmodifiableListView(t6.stylesheet._stylesheet1$_forwards, type$.UnmodifiableListView_ForwardRule_2);
+              if (!t7.get$isEmpty(t7))
+                t1._async_evaluate0$_configuration = $async$self.environment.toImplicitConfiguration$0();
+              $async$goto = 2;
+              return A._asyncAwait(t1.visitStylesheet$1(t6.stylesheet), $async$call$0);
+            case 2:
+              // returning from await.
+              t6 = t8 ? t1._async_evaluate0$_addOutOfOrderImports$0() : A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+              $async$self.children.__late_helper$_value = t6;
+              t1._async_evaluate0$_importer = oldImporter;
+              t1._async_evaluate0$__stylesheet = t2;
+              if (t8) {
+                t1._async_evaluate0$__root = t3;
+                t1._async_evaluate0$__parent = t4;
+                t1._async_evaluate0$__endOfImports = t5;
+                t1._async_evaluate0$_outOfOrderImports = oldOutOfOrderImports;
+              }
+              t1._async_evaluate0$_configuration = oldConfiguration;
+              t1._async_evaluate0$_inDependency = oldInDependency;
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__applyMixin_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_environment.asMixin$1(new A._EvaluateVisitor__applyMixin__closure6(t1, $async$self.$arguments, $async$self.mixin, $async$self.nodeWithSpanWithoutContent)), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin__closure6.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 2;
+              return A._asyncAwait($async$self.$this._async_evaluate0$_runBuiltInCallable$3($async$self.$arguments, $async$self.mixin, $async$self.nodeWithSpanWithoutContent), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin_closure6.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_environment.withContent$2($async$self.contentCallable, new A._EvaluateVisitor__applyMixin__closure5(t1, $async$self.mixin, $async$self.nodeWithSpanWithoutContent)), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor__applyMixin__closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_environment.asMixin$1(new A._EvaluateVisitor__applyMixin___closure2(t1, $async$self.mixin, $async$self.nodeWithSpanWithoutContent)), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin___closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.void),
+        $async$self = this, t1, t2, t3, t4, t5, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.mixin.declaration.children, t2 = t1.length, t3 = $async$self.$this, t4 = $async$self.nodeWithSpanWithoutContent, t5 = type$.nullable_Value_2, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t3._async_evaluate0$_addErrorSpan$1$2(t4, new A._EvaluateVisitor__applyMixin____closure2(t3, t1[_i]), t5), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 24
+  };
+  A._EvaluateVisitor__applyMixin____closure2.prototype = {
+    call$0() {
+      return this.statement.accept$1(this.$this);
+    },
+    $signature: 75
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure8.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate0$_environment.getMixin$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 93
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure9.prototype = {
+    call$1($content) {
+      var t1 = this.$this;
+      return new A.UserDefinedCallable0($content, t1._async_evaluate0$_environment.closure$0(), t1._async_evaluate0$_inDependency, type$.UserDefinedCallable_AsyncEnvironment_2);
+    },
+    $signature: 339
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure10.prototype = {
+    call$0() {
+      return this.node.get$spanWithoutContent();
+    },
+    $signature: 26
+  };
+  A._EvaluateVisitor_visitMediaRule_closure8.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._async_evaluate0$_mergeMediaQueries$2(mediaQueries, this.queries);
+    },
+    $signature: 101
+  };
+  A._EvaluateVisitor_visitMediaRule_closure9.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.mergedQueries;
+              if (t2 == null)
+                t2 = $async$self.queries;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_withMediaQueries$1$3(t2, $async$self.mergedSources, new A._EvaluateVisitor_visitMediaRule__closure2(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitMediaRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, _i, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate0$_atRootExcludingStyleRule ? null : t1._async_evaluate0$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate0$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitMediaRule___closure2(t1, $async$self.node), false, type$.ModifiableCssStyleRule_2, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.length, _i = 0;
+            case 6:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              $async$goto = 9;
+              return A._asyncAwait(t2[_i].accept$1(t1), $async$call$0);
+            case 9:
+              // returning from await.
+            case 7:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitMediaRule___closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitMediaRule_closure10.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule0)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule0 && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitStyleRule_closure14.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitStyleRule_closure15.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitStyleRule_closure17.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_withStyleRule$1$2($async$self.rule, new A._EvaluateVisitor_visitStyleRule__closure2(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitStyleRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitStyleRule_closure16.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitStyleRule_closure18.prototype = {
+    call$1(child) {
+      return child instanceof A.ModifiableCssComment0;
+    },
+    $signature: 108
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, _i, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate0$_atRootExcludingStyleRule ? null : t1._async_evaluate0$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate0$_withParent$2$2(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitSupportsRule__closure2(t1, $async$self.node), type$.ModifiableCssStyleRule_2, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.length, _i = 0;
+            case 6:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              $async$goto = 9;
+              return A._asyncAwait(t2[_i].accept$1(t1), $async$call$0);
+            case 9:
+              // returning from await.
+            case 7:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitSupportsRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, _i;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.length, t3 = $async$self.$this, _i = 0;
+            case 2:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 5;
+              return A._asyncAwait(t1[_i].accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+            case 3:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 4:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure6.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor__visitSupportsCondition_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.String),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, $async$temp1, $async$temp2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self._box_0;
+              $async$temp1 = A;
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_evaluate0$_evaluateToCss$1(t2.declaration.name), $async$call$0);
+            case 3:
+              // returning from await.
+              t3 = $async$temp1.S($async$result);
+              t4 = t2.declaration.get$isCustomProperty() ? "" : " ";
+              $async$temp1 = "(" + t3 + ":" + t4;
+              $async$temp2 = A;
+              $async$goto = 4;
+              return A._asyncAwait(t1._async_evaluate0$_evaluateToCss$1(t2.declaration.value), $async$call$0);
+            case 4:
+              // returning from await.
+              $async$returnValue = $async$temp1 + $async$temp2.S($async$result) + ")";
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 177
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure8.prototype = {
+    call$0() {
+      var t1 = this.$this._async_evaluate0$_environment,
+        t2 = this._box_0.override;
+      t1.setVariable$4$global(this.node.name, t2.value, t2.assignmentNode, true);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure9.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate0$_environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure10.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.node;
+      t1._async_evaluate0$_environment.setVariable$5$global$namespace(t2.name, this.value, t1._async_evaluate0$_expressionNode$1(t2.expression), t2.isGlobal, t2.namespace);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitUseRule_closure2.prototype = {
+    call$2(module, firstLoad) {
+      var t1, t2, t3, _0_0, t4, t5, span;
+      if (firstLoad)
+        this.$this._async_evaluate0$_registerCommentsForModule$1(module);
+      t1 = this.$this._async_evaluate0$_environment;
+      t2 = this.node;
+      t3 = t2.namespace;
+      if (t3 == null) {
+        t1._async_environment0$_globalModules.$indexSet(0, module, t2);
+        t1._async_environment0$_allModules.push(module);
+        _0_0 = A.IterableExtension_firstWhereOrNull(J.get$keys$z(B.JSArray_methods.get$first(t1._async_environment0$_variables)), module.get$variables().get$containsKey());
+        if (_0_0 != null)
+          A.throwExpression(A.SassScriptException$0(string$.This_ma + _0_0 + '".', null));
+      } else {
+        t4 = t1._async_environment0$_modules;
+        if (t4.containsKey$1(t3)) {
+          t5 = t1._async_environment0$_namespaceNodes.$index(0, t3);
+          span = t5 == null ? null : t5.span;
+          t5 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (span != null)
+            t5.$indexSet(0, span, "original @use");
+          A.throwExpression(A.MultiSpanSassScriptException$0(string$.There_ + t3 + '".', "new @use", t5));
+        }
+        t4.$indexSet(0, t3, module);
+        t1._async_environment0$_namespaceNodes.$indexSet(0, t3, t2);
+        t1._async_environment0$_allModules.push(module);
+      }
+    },
+    $signature: 109
+  };
+  A._EvaluateVisitor_visitWarnRule_closure2.prototype = {
+    call$0() {
+      return this.node.expression.accept$1(this.$this);
+    },
+    $signature: 65
+  };
+  A._EvaluateVisitor_visitWhileRule_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node, t2 = t1.condition, t3 = $async$self.$this, t1 = t1.children;
+            case 3:
+              // for condition
+              $async$goto = 5;
+              return A._asyncAwait(t2.accept$1(t3), $async$call$0);
+            case 5:
+              // returning from await.
+              if (!$async$result.get$isTruthy()) {
+                // goto after for
+                $async$goto = 4;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t3._async_evaluate0$_handleReturn$2(t1, new A._EvaluateVisitor_visitWhileRule__closure2(t3)), $async$call$0);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = _0_0;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 4:
+              // after for
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 75
+  };
+  A._EvaluateVisitor_visitWhileRule__closure2.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 98
+  };
+  A._EvaluateVisitor_visitBinaryOperationExpression_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t3, t1, t2, left, $async$temp1, $async$temp2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node;
+              t2 = $async$self.$this;
+              $async$goto = 3;
+              return A._asyncAwait(t1.left.accept$1(t2), $async$call$0);
+            case 3:
+              // returning from await.
+              left = $async$result;
+            case 4:
+              // switch
+              switch (t1.operator) {
+                case B.BinaryOperator_wdM0:
+                  // goto case
+                  $async$goto = 6;
+                  break;
+                case B.BinaryOperator_qNM0:
+                  // goto case
+                  $async$goto = 7;
+                  break;
+                case B.BinaryOperator_eDt0:
+                  // goto case
+                  $async$goto = 8;
+                  break;
+                case B.BinaryOperator_g8k0:
+                  // goto case
+                  $async$goto = 9;
+                  break;
+                case B.BinaryOperator_icU0:
+                  // goto case
+                  $async$goto = 10;
+                  break;
+                case B.BinaryOperator_bEa0:
+                  // goto case
+                  $async$goto = 11;
+                  break;
+                case B.BinaryOperator_oEm0:
+                  // goto case
+                  $async$goto = 12;
+                  break;
+                case B.BinaryOperator_miq0:
+                  // goto case
+                  $async$goto = 13;
+                  break;
+                case B.BinaryOperator_SPQ0:
+                  // goto case
+                  $async$goto = 14;
+                  break;
+                case B.BinaryOperator_u150:
+                  // goto case
+                  $async$goto = 15;
+                  break;
+                case B.BinaryOperator_SjO0:
+                  // goto case
+                  $async$goto = 16;
+                  break;
+                case B.BinaryOperator_2No0:
+                  // goto case
+                  $async$goto = 17;
+                  break;
+                case B.BinaryOperator_U770:
+                  // goto case
+                  $async$goto = 18;
+                  break;
+                case B.BinaryOperator_KNx0:
+                  // goto case
+                  $async$goto = 19;
+                  break;
+                default:
+                  // goto default
+                  $async$goto = 20;
+                  break;
+              }
+              break;
+            case 6:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$goto = 21;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 21:
+              // returning from await.
+              t1 = $async$result;
+              t1 = new A.SassString0(A.serializeValue0(left, false, true) + "=" + A.serializeValue0(t1, false, true), false);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 7:
+              // case
+              $async$goto = left.get$isTruthy() ? 22 : 24;
+              break;
+            case 22:
+              // then
+              t1 = left;
+              // goto join
+              $async$goto = 23;
+              break;
+            case 24:
+              // else
+              t1 = t1.right.accept$1(t2);
+              $async$goto = 25;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 25:
+              // returning from await.
+              t1 = $async$result;
+            case 23:
+              // join
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 8:
+              // case
+              $async$goto = left.get$isTruthy() ? 26 : 28;
+              break;
+            case 26:
+              // then
+              t1 = t1.right.accept$1(t2);
+              $async$goto = 29;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 29:
+              // returning from await.
+              t1 = $async$result;
+              // goto join
+              $async$goto = 27;
+              break;
+            case 28:
+              // else
+              t1 = left;
+            case 27:
+              // join
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 9:
+              // case
+              $async$temp1 = left;
+              $async$goto = 30;
+              return A._asyncAwait(t1.right.accept$1(t2), $async$call$0);
+            case 30:
+              // returning from await.
+              t1 = $async$temp1.$eq(0, $async$result) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 10:
+              // case
+              $async$temp1 = left;
+              $async$goto = 31;
+              return A._asyncAwait(t1.right.accept$1(t2), $async$call$0);
+            case 31:
+              // returning from await.
+              t1 = !$async$temp1.$eq(0, $async$result) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 11:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 32;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 32:
+              // returning from await.
+              t1 = $async$temp1.greaterThan$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 12:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 33;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 33:
+              // returning from await.
+              t1 = $async$temp1.greaterThanOrEquals$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 13:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 34;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 34:
+              // returning from await.
+              t1 = $async$temp1.lessThan$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 14:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 35;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 35:
+              // returning from await.
+              t1 = $async$temp1.lessThanOrEquals$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 15:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 36;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 36:
+              // returning from await.
+              t1 = $async$temp1.plus$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 16:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 37;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 37:
+              // returning from await.
+              t1 = $async$temp1.minus$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 17:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 38;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 38:
+              // returning from await.
+              t1 = $async$temp1.times$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 18:
+              // case
+              t3 = t1.right.accept$1(t2);
+              $async$temp1 = t2;
+              $async$temp2 = left;
+              $async$goto = 39;
+              return A._asyncAwait(type$.Future_Value_2._is(t3) ? t3 : A._Future$value(t3, type$.Value_2), $async$call$0);
+            case 39:
+              // returning from await.
+              t1 = $async$temp1._async_evaluate0$_slash$3($async$temp2, $async$result, t1);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 19:
+              // case
+              t1 = t1.right.accept$1(t2);
+              $async$temp1 = left;
+              $async$goto = 40;
+              return A._asyncAwait(type$.Future_Value_2._is(t1) ? t1 : A._Future$value(t1, type$.Value_2), $async$call$0);
+            case 40:
+              // returning from await.
+              t1 = $async$temp1.modulo$1($async$result);
+              // goto after switch
+              $async$goto = 5;
+              break;
+            case 20:
+              // default
+              t1 = null;
+            case 5:
+              // after switch
+              $async$returnValue = t1;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 65
+  };
+  A._EvaluateVisitor__slash_recommendation2.prototype = {
+    call$1(expression) {
+      var t1;
+      $label0$0: {
+        if (expression instanceof A.BinaryOperationExpression0 && B.BinaryOperator_U770 === expression.operator) {
+          t1 = "math.div(" + A.S(this.call$1(expression.left)) + ", " + A.S(this.call$1(expression.right)) + ")";
+          break $label0$0;
+        }
+        if (expression instanceof A.ParenthesizedExpression0) {
+          t1 = expression.expression.toString$0(0);
+          break $label0$0;
+        }
+        t1 = expression.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 135
+  };
+  A._EvaluateVisitor_visitVariableExpression_closure2.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate0$_environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitUnaryOperationExpression_closure2.prototype = {
+    call$0() {
+      var t1, _this = this;
+      switch (_this.node.operator) {
+        case B.UnaryOperator_cLp0:
+          t1 = _this.operand.unaryPlus$0();
+          break;
+        case B.UnaryOperator_AiQ0:
+          t1 = _this.operand.unaryMinus$0();
+          break;
+        case B.UnaryOperator_SJr0:
+          t1 = new A.SassString0("/" + A.serializeValue0(_this.operand, false, true), false);
+          break;
+        case B.UnaryOperator_not_not_not0:
+          t1 = _this.operand.unaryNot$0();
+          break;
+        default:
+          t1 = null;
+      }
+      return t1;
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor_visitListExpression_closure2.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 346
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure8.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate0$_environment.getFunction$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 93
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure9.prototype = {
+    call$1(argument) {
+      return argument.accept$1(new A._IsCalculationSafeVisitor0());
+    },
+    $signature: 107
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure10.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate0$_runFunctionCallable$3(t1.$arguments, this._box_0.$function, t1);
+    },
+    $signature: 65
+  };
+  A._EvaluateVisitor__checkCalculationArguments_check2.prototype = {
+    call$1(maxArgs) {
+      var t1 = this.node,
+        t2 = t1.$arguments.positional.length;
+      if (t2 === 0)
+        throw A.wrapException(this.$this._async_evaluate0$_exception$2("Missing argument.", t1.span));
+      else if (maxArgs != null && t2 > maxArgs)
+        throw A.wrapException(this.$this._async_evaluate0$_exception$2("Only " + A.S(maxArgs) + " " + A.pluralize0("argument", maxArgs, null) + " allowed, but " + t2 + " " + A.pluralize0("was", t2, "were") + " passed.", t1.span));
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    $signature: 96
+  };
+  A._EvaluateVisitor__visitCalculationExpression_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Object),
+        $async$returnValue, $async$self = this, t1, t2, t3, $async$temp1, $async$temp2, $async$temp3;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self._box_0;
+              t3 = $async$self.inLegacySassFunction;
+              $async$temp1 = A;
+              $async$temp2 = t1._async_evaluate0$_binaryOperatorToCalculationOperator$2(t2.operator, $async$self.node);
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2.left, t3), $async$call$0);
+            case 3:
+              // returning from await.
+              $async$temp3 = $async$result;
+              $async$goto = 4;
+              return A._asyncAwait(t1._async_evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2.right, t3), $async$call$0);
+            case 4:
+              // returning from await.
+              $async$returnValue = $async$temp1.SassCalculation_operateInternal0($async$temp2, $async$temp3, $async$result, t3, !t1._async_evaluate0$_inSupportsDeclaration);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 180
+  };
+  A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure2.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._async_evaluate0$_runFunctionCallable$3(t1.$arguments, this.$function, t1);
+    },
+    $signature: 65
+  };
+  A._EvaluateVisitor__runUserDefinedCallable_closure2.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.callable,
+        t3 = _this.V;
+      return t1._async_evaluate0$_withEnvironment$1$2(t2.environment.closure$0(), new A._EvaluateVisitor__runUserDefinedCallable__closure2(t1, _this.evaluated, t2, _this.nodeWithSpan, _this.run, t3), t3);
+    },
+    $signature() {
+      return this.V._eval$1("Future<0>()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable__closure2.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.V;
+      return t1._async_evaluate0$_environment.scope$1$1(new A._EvaluateVisitor__runUserDefinedCallable___closure2(t1, _this.evaluated, _this.callable, _this.nodeWithSpan, _this.run, t2), t2);
+    },
+    $signature() {
+      return this.V._eval$1("Future<0>()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable___closure2.prototype = {
+    call$0() {
+      return this.$call$body$_EvaluateVisitor__runUserDefinedCallable___closure0(this.V);
+    },
+    $call$body$_EvaluateVisitor__runUserDefinedCallable___closure0($async$type) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter($async$type),
+        $async$returnValue, $async$self = this, declaredArguments, t5, minLength, i, argument, t6, t7, value, t8, restArgument, rest, argumentList, result, t1, t2, t3, t4, $async$temp1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.evaluated._values;
+              t3 = $async$self.callable.declaration.$arguments;
+              t4 = $async$self.nodeWithSpan;
+              t1._async_evaluate0$_verifyArguments$4(J.get$length$asx(t2[2]), t2[0], t3, t4);
+              declaredArguments = t3.$arguments;
+              t5 = declaredArguments.length;
+              minLength = Math.min(J.get$length$asx(t2[2]), t5);
+              for (i = 0; i < minLength; ++i)
+                t1._async_evaluate0$_environment.setLocalVariable$3(declaredArguments[i].name, J.$index$asx(t2[2], i), J.$index$asx(t2[3], i));
+              i = J.get$length$asx(t2[2]);
+            case 3:
+              // for condition
+              if (!(i < t5)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              argument = declaredArguments[i];
+              t6 = t2[0];
+              t7 = argument.name;
+              value = J.remove$1$z(t6, t7);
+              $async$goto = value == null ? 6 : 7;
+              break;
+            case 6:
+              // then
+              t6 = argument.defaultValue;
+              $async$temp1 = t1;
+              $async$goto = 8;
+              return A._asyncAwait(t6.accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+              value = $async$temp1._async_evaluate0$_withoutSlash$2($async$result, t1._async_evaluate0$_expressionNode$1(t6));
+            case 7:
+              // join
+              t6 = t1._async_evaluate0$_environment;
+              t8 = J.$index$asx(t2[1], t7);
+              if (t8 == null) {
+                t8 = argument.defaultValue;
+                t8.toString;
+                t8 = t1._async_evaluate0$_expressionNode$1(t8);
+              }
+              t6.setLocalVariable$3(t7, value, t8);
+            case 4:
+              // for update
+              ++i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              restArgument = t3.restArgument;
+              if (restArgument != null) {
+                rest = J.get$length$asx(t2[2]) > t5 ? J.sublist$1$ax(t2[2], t5) : B.List_empty19;
+                t5 = t2[0];
+                t6 = t2[4];
+                argumentList = A.SassArgumentList$0(rest, t5, t6 === B.ListSeparator_undecided_null_undecided0 ? B.ListSeparator_ECn0 : t6);
+                t1._async_evaluate0$_environment.setLocalVariable$3(restArgument, argumentList, t4);
+              } else
+                argumentList = null;
+              $async$goto = 9;
+              return A._asyncAwait($async$self.run.call$0(), $async$call$0);
+            case 9:
+              // returning from await.
+              result = $async$result;
+              if (argumentList == null) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (J.get$isEmpty$asx(t2[0])) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (argumentList._argument_list$_wereKeywordsAccessed) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              throw A.wrapException(A.MultiSpanSassRuntimeException$0("No " + A.pluralize0("argument", J.get$length$asx(J.get$keys$z(t2[0])), null) + " named " + A.toSentence0(J.map$1$1$ax(J.get$keys$z(t2[0]), new A._EvaluateVisitor__runUserDefinedCallable____closure2(), type$.Object), "or") + ".", t4.get$span(t4), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([t3.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), t1._async_evaluate0$_stackTrace$1(t4.get$span(t4)), null));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature() {
+      return this.V._eval$1("Future<0>()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable____closure2.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__runFunctionCallable_closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, t1, t2, t3, t4, _i, $returnValue;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.callable.declaration, t2 = t1.children, t3 = t2.length, t4 = $async$self.$this, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t3)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait(t2[_i].accept$1(t4), $async$call$0);
+            case 6:
+              // returning from await.
+              $returnValue = $async$result;
+              if ($returnValue instanceof A.Value0) {
+                $async$returnValue = $returnValue;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              throw A.wrapException(t4._async_evaluate0$_exception$2("Function finished without @return.", t1.span));
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 65
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure8.prototype = {
+    call$0() {
+      return this._box_0.overload.verify$2(J.get$length$asx(this.evaluated._values[2]), this.namedSet);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure9.prototype = {
+    call$0() {
+      return this._box_0.callback.call$1(this.evaluated._values[2]);
+    },
+    $signature: 348
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure10.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__evaluateArguments_closure11.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 41
+  };
+  A._EvaluateVisitor__evaluateArguments_closure12.prototype = {
+    call$1(value) {
+      return this.$this._async_evaluate0$_withoutSlash$2(value, this.restNodeForSpan);
+    },
+    $signature: 41
+  };
+  A._EvaluateVisitor__evaluateArguments_closure13.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restNodeForSpan;
+      _this.named.$indexSet(0, key, _this.$this._async_evaluate0$_withoutSlash$2(value, t1));
+      _this.namedNodes.$indexSet(0, key, t1);
+    },
+    $signature: 100
+  };
+  A._EvaluateVisitor__evaluateArguments_closure14.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 41
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure11.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression0(value, t1.get$span(t1));
+    },
+    $signature: 61
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure12.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression0(this.$this._async_evaluate0$_withoutSlash$2(value, this.restNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 61
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure13.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restArgs;
+      _this.named.$indexSet(0, key, new A.ValueExpression0(_this.$this._async_evaluate0$_withoutSlash$2(value, _this.restNodeForSpan), t1.get$span(t1)));
+    },
+    $signature: 100
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure14.prototype = {
+    call$1(value) {
+      var t1 = this.keywordRestArgs;
+      return new A.ValueExpression0(this.$this._async_evaluate0$_withoutSlash$2(value, this.keywordRestNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 61
+  };
+  A._EvaluateVisitor__addRestMap_closure2.prototype = {
+    call$2(key, value) {
+      var t2, _this = this,
+        t1 = _this.$this;
+      if (key instanceof A.SassString0)
+        _this.values.$indexSet(0, key._string0$_text, _this.convert.call$1(t1._async_evaluate0$_withoutSlash$2(value, _this.expressionNode)));
+      else {
+        t2 = _this.nodeWithSpan;
+        throw A.wrapException(t1._async_evaluate0$_exception$2(string$.Variab_ + key.toString$0(0) + " is not a string in " + _this.map.toString$0(0) + ".", t2.get$span(t2)));
+      }
+    },
+    $signature: 94
+  };
+  A._EvaluateVisitor__verifyArguments_closure2.prototype = {
+    call$0() {
+      return this.$arguments.verify$2(this.positional, new A.MapKeySet(this.named, type$.MapKeySet_String));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure6.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure6.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure8.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._async_evaluate0$_mergeMediaQueries$2(mediaQueries, this.node.queries);
+    },
+    $signature: 101
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure9.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.mergedQueries;
+              if (t2 == null)
+                t2 = $async$self.node.queries;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_withMediaQueries$1$3(t2, $async$self.mergedSources, new A._EvaluateVisitor_visitCssMediaRule__closure2(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssMediaRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, t4, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate0$_atRootExcludingStyleRule ? null : t1._async_evaluate0$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate0$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssMediaRule___closure2(t1, $async$self.node), false, type$.ModifiableCssStyleRule_2, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E");
+            case 6:
+              // for condition
+              if (!t2.moveNext$0()) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              t4 = t2.__internal$_current;
+              $async$goto = 8;
+              return A._asyncAwait((t4 == null ? t3._as(t4) : t4).accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 7:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssMediaRule___closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure10.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule0)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule0 && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure6.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              $async$goto = 2;
+              return A._asyncAwait(t1._async_evaluate0$_withStyleRule$1$2($async$self.rule, new A._EvaluateVisitor_visitCssStyleRule__closure2(t1, $async$self.node), type$.Null), $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssStyleRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure5.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure5.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t2, t3, t4, t1, _0_0;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              _0_0 = t1._async_evaluate0$_atRootExcludingStyleRule ? null : t1._async_evaluate0$_styleRuleIgnoringAtRoot;
+              $async$goto = _0_0 != null ? 2 : 4;
+              break;
+            case 2:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1._async_evaluate0$_withParent$2$2(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssSupportsRule__closure2(t1, $async$self.node), type$.ModifiableCssStyleRule_2, type$.Null), $async$call$0);
+            case 5:
+              // returning from await.
+              // goto join
+              $async$goto = 3;
+              break;
+            case 4:
+              // else
+              t2 = $async$self.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E");
+            case 6:
+              // for condition
+              if (!t2.moveNext$0()) {
+                // goto after for
+                $async$goto = 7;
+                break;
+              }
+              t4 = t2.__internal$_current;
+              $async$goto = 8;
+              return A._asyncAwait((t4 == null ? t3._as(t4) : t4).accept$1(t1), $async$call$0);
+            case 8:
+              // returning from await.
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 7:
+              // after for
+            case 3:
+              // join
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssSupportsRule__closure2.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = $async$self.$this, t2 = t2._eval$1("ListBase.E");
+            case 2:
+              // for condition
+              if (!t1.moveNext$0()) {
+                // goto after for
+                $async$goto = 3;
+                break;
+              }
+              t4 = t1.__internal$_current;
+              $async$goto = 4;
+              return A._asyncAwait((t4 == null ? t2._as(t4) : t4).accept$1(t3), $async$call$0);
+            case 4:
+              // returning from await.
+              // goto for condition
+              $async$goto = 2;
+              break;
+            case 3:
+              // after for
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure6.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor__performInterpolationHelper_closure2.prototype = {
+    call$1(targetLocations) {
+      return A.InterpolationMap$0(this.interpolation, targetLocations);
+    },
+    $signature: 219
+  };
+  A._EvaluateVisitor__serialize_closure2.prototype = {
+    call$0() {
+      return A.serializeValue0(this.value, false, this.quote);
+    },
+    $signature: 25
+  };
+  A._EvaluateVisitor__expressionNode_closure2.prototype = {
+    call$0() {
+      var t1 = this.expression;
+      return this.$this._async_evaluate0$_environment.getVariableNode$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 218
+  };
+  A._EvaluateVisitor__withoutSlash_recommendation2.prototype = {
+    call$1(number) {
+      var t1, before, after,
+        _1_0 = number.asSlash;
+      $label0$0: {
+        if (type$.Record_2_nullable_Object_and_nullable_Object._is(_1_0)) {
+          t1 = type$.SassNumber_2;
+          before = t1._as(_1_0._0);
+          after = t1._as(_1_0._1);
+          t1 = "math.div(" + A.S(this.call$1(before)) + ", " + A.S(this.call$1(after)) + ")";
+          break $label0$0;
+        }
+        t1 = A.serializeValue0(number, true, true);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 217
+  };
+  A._EvaluateVisitor__stackFrame_closure2.prototype = {
+    call$1(url) {
+      var t1 = this.$this._async_evaluate0$_importCache;
+      t1 = t1 == null ? null : t1.humanize$1(url);
+      return t1 == null ? url : t1;
+    },
+    $signature: 46
+  };
+  A._ImportedCssVisitor2.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.isChildless ? null : new A._ImportedCssVisitor_visitCssAtRule_closure2();
+      this._async_evaluate0$_visitor._async_evaluate0$_addChild$2$through(node, t1);
+    },
+    visitCssComment$1(node) {
+      return this._async_evaluate0$_visitor._async_evaluate0$_addChild$1(node);
+    },
+    visitCssDeclaration$1(node) {
+    },
+    visitCssImport$1(node) {
+      var t2,
+        _s13_ = "_endOfImports",
+        t1 = this._async_evaluate0$_visitor;
+      if (t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__parent, "__parent") !== t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__root, "_root"))
+        t1._async_evaluate0$_addChild$1(node);
+      else if (t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__endOfImports, _s13_) === J.get$length$asx(t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__root, "_root").children._collection$_source)) {
+        t1._async_evaluate0$_addChild$1(node);
+        t1._async_evaluate0$__endOfImports = t1._async_evaluate0$_assertInModule$2(t1._async_evaluate0$__endOfImports, _s13_) + 1;
+      } else {
+        t2 = t1._async_evaluate0$_outOfOrderImports;
+        (t2 == null ? t1._async_evaluate0$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport_2) : t2).push(node);
+      }
+    },
+    visitCssKeyframeBlock$1(node) {
+    },
+    visitCssMediaRule$1(node) {
+      var t1 = this._async_evaluate0$_visitor,
+        mediaQueries = t1._async_evaluate0$_mediaQueries;
+      t1._async_evaluate0$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssMediaRule_closure2(mediaQueries == null || t1._async_evaluate0$_mergeMediaQueries$2(mediaQueries, node.queries) != null));
+    },
+    visitCssStyleRule$1(node) {
+      return this._async_evaluate0$_visitor._async_evaluate0$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssStyleRule_closure2());
+    },
+    visitCssStylesheet$1(node) {
+      var t1, t2, t3;
+      for (t1 = node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        (t3 == null ? t2._as(t3) : t3).accept$1(this);
+      }
+    },
+    visitCssSupportsRule$1(node) {
+      return this._async_evaluate0$_visitor._async_evaluate0$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssSupportsRule_closure2());
+    }
+  };
+  A._ImportedCssVisitor_visitCssAtRule_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._ImportedCssVisitor_visitCssMediaRule_closure2.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule0))
+        t1 = this.hasBeenMerged && node instanceof A.ModifiableCssMediaRule0;
+      else
+        t1 = true;
+      return t1;
+    },
+    $signature: 8
+  };
+  A._ImportedCssVisitor_visitCssStyleRule_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._ImportedCssVisitor_visitCssSupportsRule_closure2.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluationContext2.prototype = {
+    get$currentCallableSpan() {
+      var _0_0 = this._async_evaluate0$_visitor._async_evaluate0$_callableNode;
+      if (_0_0 != null)
+        return _0_0.get$span(_0_0);
+      throw A.wrapException(A.StateError$(string$.No_Sasc));
+    },
+    warn$2(_, message, deprecation) {
+      var t1 = this._async_evaluate0$_visitor,
+        t2 = t1._async_evaluate0$_importSpan;
+      if (t2 == null) {
+        t2 = t1._async_evaluate0$_callableNode;
+        t2 = t2 == null ? null : t2.get$span(t2);
+      }
+      t1._async_evaluate0$_warn$3(message, t2 == null ? this._async_evaluate0$_defaultWarnNodeWithSpan.span : t2, deprecation);
+    },
+    $isEvaluationContext0: 1
+  };
+  A.JSToDartAsyncFileImporter.prototype = {
+    canonicalize$1(_, url) {
+      return this.canonicalize$body$JSToDartAsyncFileImporter(0, url);
+    },
+    canonicalize$body$JSToDartAsyncFileImporter(_, url) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Uri),
+        $async$returnValue, $async$self = this, result, t1, resultUrl;
+      var $async$canonicalize$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (url.get$scheme() === "file") {
+                $async$returnValue = $.$get$FilesystemImporter_cwd0().canonicalize$1(0, url);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              result = A.wrapJSExceptions(new A.JSToDartAsyncFileImporter_canonicalize_closure($async$self, url));
+              $async$goto = result != null && result instanceof self.Promise ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(A.promiseToFuture(type$.Promise._as(result), type$.nullable_Object), $async$canonicalize$1);
+            case 5:
+              // returning from await.
+              result = $async$result;
+            case 4:
+              // join
+              if (result == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t1 = self.URL;
+              if (!(result instanceof t1))
+                A.jsThrow(new self.Error(string$.The_fie));
+              resultUrl = A.Uri_parse(J.toString$0$(type$.JSUrl._as(result)));
+              if (resultUrl.get$scheme() !== "file")
+                A.jsThrow(new self.Error(string$.The_fiu + url.toString$0(0) + '".'));
+              $async$returnValue = $.$get$FilesystemImporter_cwd0().canonicalize$1(0, resultUrl);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$canonicalize$1, $async$completer);
+    },
+    load$1(_, url) {
+      return $.$get$FilesystemImporter_cwd0().load$1(0, url);
+    },
+    isNonCanonicalScheme$1(scheme) {
+      return scheme !== "file";
+    }
+  };
+  A.JSToDartAsyncFileImporter_canonicalize_closure.prototype = {
+    call$0() {
+      return this.$this._findFileUrl.call$2(this.url.toString$0(0), A.canonicalizeContext0());
+    },
+    $signature: 31
+  };
+  A.AsyncImportCache0.prototype = {
+    canonicalize$4$baseImporter$baseUrl$forImport(_, url, baseImporter, baseUrl, forImport) {
+      return this.canonicalize$body$AsyncImportCache0(0, url, baseImporter, baseUrl, forImport);
+    },
+    canonicalize$body$AsyncImportCache0(_, url, baseImporter, baseUrl, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2),
+        $async$returnValue, $async$self = this, t1, resolvedUrl, key, relativeResult, t2, t3, t4, t5, t6, cacheable, i, importer, perImporterKey, t7, _1_0, _1_2_isSet, _1_2, result, _2_0, _2_1, _2_5_isSet, _2_3, _2_5, _2_3_isSet, j;
+      var $async$canonicalize$4$baseImporter$baseUrl$forImport = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              if (A.isBrowser())
+                t1 = (baseImporter == null || baseImporter instanceof A.NoOpImporter0) && $async$self._async_import_cache0$_importers.length === 0;
+              else
+                t1 = false;
+              if (t1)
+                throw A.wrapException(string$.Custom);
+              $async$goto = baseImporter != null && url.get$scheme() === "" ? 3 : 4;
+              break;
+            case 3:
+              // then
+              resolvedUrl = baseUrl == null ? null : baseUrl.resolveUri$1(url);
+              if (resolvedUrl == null)
+                resolvedUrl = url;
+              key = new A._Record_3_forImport(baseImporter, resolvedUrl, forImport);
+              $async$goto = 5;
+              return A._asyncAwait(A.putIfAbsentAsync0($async$self._async_import_cache0$_perImporterCanonicalizeCache, key, new A.AsyncImportCache_canonicalize_closure0($async$self, baseImporter, resolvedUrl, baseUrl, forImport, key, url), type$.Record_3_AsyncImporter_and_Uri_and_bool_forImport_2, type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2), $async$canonicalize$4$baseImporter$baseUrl$forImport);
+            case 5:
+              // returning from await.
+              relativeResult = $async$result;
+              if (relativeResult != null) {
+                $async$returnValue = relativeResult;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // join
+              key = new A._Record_2_forImport(url, forImport);
+              t1 = $async$self._async_import_cache0$_canonicalizeCache;
+              if (t1.containsKey$1(key)) {
+                $async$returnValue = t1.$index(0, key);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t2 = $async$self._async_import_cache0$_importers, t3 = type$.Record_1_nullable_Object, t4 = $async$self._async_import_cache0$_perImporterCanonicalizeCache, t5 = type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2, t6 = type$.Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2, cacheable = true, i = 0;
+            case 6:
+              // for condition
+              if (!(i < t2.length)) {
+                // goto after for
+                $async$goto = 8;
+                break;
+              }
+              importer = t2[i];
+              perImporterKey = new A._Record_3_forImport(importer, url, forImport);
+              if (t4.containsKey$1(perImporterKey)) {
+                t7 = t4.$index(0, perImporterKey);
+                _1_0 = new A._Record_1(t7 == null ? t5._as(t7) : t7);
+              } else
+                _1_0 = null;
+              _1_2_isSet = t3._is(_1_0);
+              if (_1_2_isSet) {
+                _1_2 = _1_0._0;
+                t7 = _1_2 != null;
+                if (t7) {
+                  t6._as(_1_2);
+                  result = _1_2;
+                } else
+                  result = null;
+              } else {
+                _1_2 = null;
+                result = null;
+                t7 = false;
+              }
+              if (t7) {
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (_1_2_isSet)
+                t7 = _1_2 == null;
+              else
+                t7 = false;
+              if (t7) {
+                // goto for update
+                $async$goto = 7;
+                break;
+              }
+              $async$goto = 10;
+              return A._asyncAwait($async$self._async_import_cache0$_canonicalize$4(importer, url, baseUrl, forImport), $async$canonicalize$4$baseImporter$baseUrl$forImport);
+            case 10:
+              // returning from await.
+              _2_0 = $async$result;
+              _2_1 = _2_0._0;
+              _2_5_isSet = _2_1 != null;
+              if (_2_5_isSet) {
+                result = _2_1 == null ? t6._as(_2_1) : _2_1;
+                _2_3 = _2_0._1;
+                t7 = _2_3;
+                _2_5 = t7;
+                t7 = t7 && cacheable;
+              } else {
+                _2_5 = null;
+                _2_3 = null;
+                result = null;
+                t7 = false;
+              }
+              if (t7) {
+                t1.$indexSet(0, key, result);
+                $async$returnValue = result;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              if (_2_5_isSet) {
+                t7 = _2_5;
+                _2_3_isSet = _2_5_isSet;
+              } else {
+                _2_3 = _2_0._1;
+                t7 = _2_3;
+                _2_3_isSet = true;
+              }
+              t7 = t7 && !cacheable;
+              if (t7) {
+                t4.$indexSet(0, perImporterKey, _2_1);
+                if (_2_1 != null) {
+                  $async$returnValue = _2_1;
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+                // goto break $label0$1
+                $async$goto = 9;
+                break;
+              }
+              t7 = false === (_2_3_isSet ? _2_3 : _2_0._1);
+              if (t7) {
+                if (cacheable) {
+                  for (j = 0; j < i; ++j)
+                    t4.$indexSet(0, new A._Record_3_forImport(t2[j], url, forImport), null);
+                  cacheable = false;
+                }
+                if (_2_1 != null) {
+                  $async$returnValue = _2_1;
+                  // goto return
+                  $async$goto = 1;
+                  break;
+                }
+              }
+            case 9:
+              // break $label0$1
+            case 7:
+              // for update
+              ++i;
+              // goto for condition
+              $async$goto = 6;
+              break;
+            case 8:
+              // after for
+              if (cacheable)
+                t1.$indexSet(0, key, null);
+              $async$returnValue = null;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$canonicalize$4$baseImporter$baseUrl$forImport, $async$completer);
+    },
+    _async_import_cache0$_canonicalize$4(importer, url, baseUrl, forImport) {
+      return this._canonicalize$body$AsyncImportCache0(importer, url, baseUrl, forImport);
+    },
+    _canonicalize$body$AsyncImportCache0(importer, url, baseUrl, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Record_2_nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_and_bool_2),
+        $async$returnValue, $async$self = this, t1, passContainingUrl, canonicalizeContext, result, cacheable;
+      var $async$_async_import_cache0$_canonicalize$4 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = baseUrl != null ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = url.get$scheme() !== "" ? 6 : 8;
+              break;
+            case 6:
+              // then
+              t1 = A._Future$value(importer.isNonCanonicalScheme$1(url.get$scheme()), type$.bool);
+              $async$goto = 9;
+              return A._asyncAwait(t1, $async$_async_import_cache0$_canonicalize$4);
+            case 9:
+              // returning from await.
+              t1 = $async$result;
+              passContainingUrl = t1;
+              // goto join
+              $async$goto = 7;
+              break;
+            case 8:
+              // else
+              passContainingUrl = true;
+            case 7:
+              // join
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              passContainingUrl = false;
+            case 4:
+              // join
+              canonicalizeContext = new A.CanonicalizeContext0(forImport, passContainingUrl ? baseUrl : null);
+              t1 = type$.nullable_Object;
+              t1 = A.runZoned(new A.AsyncImportCache__canonicalize_closure0(importer, url), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__canonicalizeContext, canonicalizeContext], t1, t1), type$.FutureOr_nullable_Uri);
+              $async$goto = 10;
+              return A._asyncAwait(type$.Future_nullable_Uri._is(t1) ? t1 : A._Future$value(t1, type$.nullable_Uri), $async$_async_import_cache0$_canonicalize$4);
+            case 10:
+              // returning from await.
+              result = $async$result;
+              cacheable = !passContainingUrl || !canonicalizeContext._canonicalize_context$_wasContainingUrlAccessed;
+              if (result == null) {
+                $async$returnValue = new A._Record_2(null, cacheable);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              $async$goto = result.get$scheme() === "" ? 11 : 13;
+              break;
+            case 11:
+              // then
+              A.WarnForDeprecation_warnForDeprecation0($async$self._async_import_cache0$_logger, B.Deprecation_Ssf, "Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2e_Rela, null, null);
+              // goto join
+              $async$goto = 12;
+              break;
+            case 13:
+              // else
+              t1 = A._Future$value(importer.isNonCanonicalScheme$1(result.get$scheme()), type$.bool);
+              $async$goto = 14;
+              return A._asyncAwait(t1, $async$_async_import_cache0$_canonicalize$4);
+            case 14:
+              // returning from await.
+              if ($async$result)
+                throw A.wrapException("Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2c_whicu);
+            case 12:
+              // join
+              $async$returnValue = new A._Record_2(new A._Record_3_originalUrl(importer, result, url), cacheable);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_async_import_cache0$_canonicalize$4, $async$completer);
+    },
+    importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, quiet) {
+      return this.importCanonical$body$AsyncImportCache0(importer, canonicalUrl, originalUrl, quiet);
+    },
+    importCanonical$3$originalUrl(importer, canonicalUrl, originalUrl) {
+      return this.importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, false);
+    },
+    importCanonical$body$AsyncImportCache0(importer, canonicalUrl, originalUrl, quiet) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Stylesheet_2),
+        $async$returnValue, $async$self = this;
+      var $async$importCanonical$4$originalUrl$quiet = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$goto = 3;
+              return A._asyncAwait(A.putIfAbsentAsync0($async$self._async_import_cache0$_importCache, canonicalUrl, new A.AsyncImportCache_importCanonical_closure0($async$self, importer, canonicalUrl, originalUrl, quiet), type$.Uri, type$.nullable_Stylesheet_2), $async$importCanonical$4$originalUrl$quiet);
+            case 3:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$importCanonical$4$originalUrl$quiet, $async$completer);
+    },
+    humanize$1(canonicalUrl) {
+      var t1 = A.IterableNullableExtension_whereNotNull(this._async_import_cache0$_canonicalizeCache.get$values(0), type$.Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2),
+        t2 = t1.$ti;
+      t2 = A.NullableExtension_andThen0(A.minBy(new A.MappedIterable(new A.WhereIterable(t1, new A.AsyncImportCache_humanize_closure3(canonicalUrl), t2._eval$1("WhereIterable<Iterable.E>")), new A.AsyncImportCache_humanize_closure4(), t2._eval$1("MappedIterable<Iterable.E,Uri>")), new A.AsyncImportCache_humanize_closure5()), new A.AsyncImportCache_humanize_closure6(canonicalUrl));
+      return t2 == null ? canonicalUrl : t2;
+    },
+    sourceMapUrl$1(_, canonicalUrl) {
+      var t1 = this._async_import_cache0$_resultsCache.$index(0, canonicalUrl);
+      t1 = t1 == null ? null : t1.get$sourceMapUrl(0);
+      return t1 == null ? canonicalUrl : t1;
+    }
+  };
+  A.AsyncImportCache_canonicalize_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2),
+        $async$returnValue, $async$self = this, t1, t2, _0_0, result;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.$this;
+              t2 = $async$self.baseUrl;
+              $async$goto = 3;
+              return A._asyncAwait(t1._async_import_cache0$_canonicalize$4($async$self.baseImporter, $async$self.resolvedUrl, t2, $async$self.forImport), $async$call$0);
+            case 3:
+              // returning from await.
+              _0_0 = $async$result;
+              result = _0_0._0;
+              _0_0._1;
+              if (t2 != null)
+                t1._async_import_cache0$_nonCanonicalRelativeUrls.$indexSet(0, $async$self.key, $async$self.url);
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 355
+  };
+  A.AsyncImportCache__canonicalize_closure0.prototype = {
+    call$0() {
+      return this.importer.canonicalize$1(0, this.url);
+    },
+    $signature: 187
+  };
+  A.AsyncImportCache_importCanonical_closure0.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Stylesheet_2),
+        $async$returnValue, $async$self = this, t3, t4, t1, t2, result;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.canonicalUrl;
+              t2 = $async$self.importer.load$1(0, t1);
+              $async$goto = 3;
+              return A._asyncAwait(type$.Future_nullable_ImporterResult._is(t2) ? t2 : A._Future$value(t2, type$.nullable_ImporterResult_2), $async$call$0);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              if (result == null) {
+                $async$returnValue = null;
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              t2 = $async$self.$this;
+              t2._async_import_cache0$_resultsCache.$indexSet(0, t1, result);
+              t3 = result.contents;
+              t4 = result.syntax;
+              t1 = $async$self.originalUrl.resolveUri$1(t1);
+              $async$returnValue = A.Stylesheet_Stylesheet$parse0(t3, t4, $async$self.quiet ? $.$get$Logger_quiet0() : t2._async_import_cache0$_logger, t1);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 356
+  };
+  A.AsyncImportCache_humanize_closure3.prototype = {
+    call$1(result) {
+      return J.$eq$(result._1, this.canonicalUrl);
+    },
+    $signature: 357
+  };
+  A.AsyncImportCache_humanize_closure4.prototype = {
+    call$1(result) {
+      return result._2;
+    },
+    $signature: 358
+  };
+  A.AsyncImportCache_humanize_closure5.prototype = {
+    call$1(url) {
+      return url.get$path(url).length;
+    },
+    $signature: 85
+  };
+  A.AsyncImportCache_humanize_closure6.prototype = {
+    call$1(url) {
+      var t1 = $.$get$url(),
+        t2 = this.canonicalUrl;
+      return url.resolve$1(0, A.ParsedPath_ParsedPath$parse(t2.get$path(t2), t1.style).get$basename());
+    },
+    $signature: 46
+  };
+  A.AtRootQueryParser0.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.AtRootQueryParser_parse_closure0(this));
+    }
+  };
+  A.AtRootQueryParser_parse_closure0.prototype = {
+    call$0() {
+      var include, atRules,
+        t1 = this.$this,
+        t2 = t1.scanner;
+      t2.expectChar$1(40);
+      t1.whitespace$0();
+      include = t1.scanIdentifier$1("with");
+      if (!include)
+        t1.expectIdentifier$2$name("without", '"with" or "without"');
+      t1.whitespace$0();
+      t2.expectChar$1(58);
+      t1.whitespace$0();
+      atRules = A.LinkedHashSet_LinkedHashSet$_empty(type$.String);
+      do {
+        atRules.add$1(0, t1.identifier$0().toLowerCase());
+        t1.whitespace$0();
+      } while (t1.lookingAtIdentifier$0());
+      t2.expectChar$1(41);
+      t2.expectDone$0();
+      return new A.AtRootQuery0(include, atRules, atRules.contains$1(0, "all"), atRules.contains$1(0, "rule"));
+    },
+    $signature: 359
+  };
+  A.AtRootQuery0.prototype = {
+    excludes$1(node) {
+      var t1, _this = this;
+      if (_this._at_root_query0$_all)
+        return !_this.include;
+      $label0$0: {
+        if (node instanceof A.ModifiableCssStyleRule0) {
+          t1 = _this._at_root_query0$_rule !== _this.include;
+          break $label0$0;
+        }
+        if (node instanceof A.ModifiableCssMediaRule0) {
+          t1 = _this.excludesName$1("media");
+          break $label0$0;
+        }
+        if (node instanceof A.ModifiableCssSupportsRule0) {
+          t1 = _this.excludesName$1("supports");
+          break $label0$0;
+        }
+        if (node instanceof A.ModifiableCssAtRule0) {
+          t1 = _this.excludesName$1(node.name.value.toLowerCase());
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    excludesName$1($name) {
+      var t1 = this._at_root_query0$_all || this.names.contains$1(0, $name);
+      return t1 !== this.include;
+    }
+  };
+  A.AtRootRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitAtRootRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var buffer = new A.StringBuffer("@at-root "),
+        t1 = this.query;
+      if (t1 != null)
+        buffer._contents = "@at-root " + (t1.toString$0(0) + " ");
+      t1 = this.children;
+      return buffer.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssAtRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssAtRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      var t1, t2;
+      if (other instanceof A.ModifiableCssAtRule0) {
+        t1 = this.name;
+        t2 = other.name;
+        t1 = t1.$ti._is(t2) && J.$eq$(t2.value, t1.value) && J.$eq$(this.value, other.value) && this.isChildless === other.isChildless;
+      } else
+        t1 = false;
+      return t1;
+    },
+    copyWithoutChildren$0() {
+      var _this = this;
+      return A.ModifiableCssAtRule$0(_this.name, _this.span, _this.isChildless, _this.value);
+    },
+    addChild$1(child) {
+      this.super$ModifiableCssParentNode$addChild0(child);
+    },
+    get$isChildless() {
+      return this.isChildless;
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.AtRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitAtRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var children,
+        t1 = "@" + this.name.toString$0(0),
+        buffer = new A.StringBuffer(t1),
+        t2 = this.value;
+      if (t2 != null)
+        buffer._contents = t1 + (" " + t2.toString$0(0));
+      children = this.children;
+      return children == null ? buffer.toString$0(0) + ";" : buffer.toString$0(0) + " {" + B.JSArray_methods.join$1(children, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.AttributeSelector0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitAttributeSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.AttributeSelector0 && other.name.$eq(0, _this.name) && other.op == _this.op && other.value == _this.value && other.modifier == _this.modifier;
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = _this.name;
+      return (B.JSString_methods.get$hashCode(t1.name) ^ J.get$hashCode$(t1.namespace) ^ J.get$hashCode$(_this.op) ^ J.get$hashCode$(_this.value) ^ J.get$hashCode$(_this.modifier)) >>> 0;
+    }
+  };
+  A.AttributeOperator0.prototype = {
+    _enumToString$0() {
+      return "AttributeOperator." + this._name;
+    },
+    toString$0(_) {
+      return this._attribute0$_text;
+    }
+  };
+  A.BinaryOperationExpression0.prototype = {
+    get$span(_) {
+      var right,
+        left = this.left;
+      for (; left instanceof A.BinaryOperationExpression0;)
+        left = left.left;
+      right = this.right;
+      for (; right instanceof A.BinaryOperationExpression0;)
+        right = right.right;
+      return left.get$span(left).expand$1(0, right.get$span(right));
+    },
+    get$operatorSpan() {
+      var t3, t4,
+        t1 = this.left,
+        t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t3 = this.right;
+      t4 = t3.get$span(t3);
+      if (t2 === t4.get$file(t4)) {
+        t2 = t1.get$span(t1);
+        t2 = t2.get$end(t2);
+        t4 = t3.get$span(t3);
+        t4 = t2.offset < t4.get$start(t4).offset;
+        t2 = t4;
+      } else
+        t2 = false;
+      if (t2) {
+        t2 = t1.get$span(t1);
+        t2 = t2.get$file(t2);
+        t1 = t1.get$span(t1);
+        t1 = t1.get$end(t1);
+        t3 = t3.get$span(t3);
+        t3 = A.SpanExtensions_trimRight0(A.SpanExtensions_trimLeft0(t2.span$2(0, t1.offset, t3.get$start(t3).offset)));
+        t1 = t3;
+      } else
+        t1 = this.get$span(0);
+      return t1;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitBinaryOperationExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1, t2, right, operator, t3, _this = this,
+        _0_0 = _this.left;
+      $label0$0: {
+        if (_0_0 instanceof A.BinaryOperationExpression0) {
+          t1 = _0_0.operator.precedence < _this.operator.precedence;
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.ListExpression0 && !_0_0.hasBrackets && _0_0.contents.length >= 2) {
+          t1 = true;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      t2 = t1 ? "" + A.Primitives_stringFromCharCode(40) : "";
+      t2 += _0_0.toString$0(0);
+      t1 = t1 ? t2 + A.Primitives_stringFromCharCode(41) : t2;
+      t2 = _this.operator;
+      t1 = t1 + A.Primitives_stringFromCharCode(32) + t2.operator + A.Primitives_stringFromCharCode(32);
+      right = _this.right;
+      $label1$1: {
+        if (right instanceof A.BinaryOperationExpression0) {
+          operator = right.operator;
+          if (operator.precedence <= t2.precedence) {
+            t3 = !(operator === t2 && operator.isAssociative);
+            t2 = t3;
+          } else
+            t2 = false;
+          break $label1$1;
+        }
+        if (right instanceof A.ListExpression0 && !right.hasBrackets && right.contents.length >= 2) {
+          t2 = true;
+          break $label1$1;
+        }
+        t2 = false;
+        break $label1$1;
+      }
+      if (t2)
+        t1 += A.Primitives_stringFromCharCode(40);
+      t1 += right.toString$0(0);
+      if (t2)
+        t1 += A.Primitives_stringFromCharCode(41);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1
+  };
+  A.BinaryOperator0.prototype = {
+    _enumToString$0() {
+      return "BinaryOperator." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.BooleanExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitBooleanExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return String(this.value);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.booleanClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassBoolean", new A.booleanClass__closure()));
+      A.JSClassExtension_injectSuperclass(t1._as(B.SassBoolean_true0.constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.booleanClass__closure.prototype = {
+    call$2($self, _) {
+      A.jsThrow(new self.Error("new sass.SassBoolean() isn't allowed.\nUse sass.sassTrue or sass.sassFalse instead."));
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 216
+  };
+  A.legacyBooleanClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.types.Boolean", new A.legacyBooleanClass__closure()));
+      J.get$$prototype$x(jsClass).getValue = A.allowInteropCaptureThisNamed("getValue", new A.legacyBooleanClass__closure0());
+      jsClass.TRUE = B.SassBoolean_true0;
+      jsClass.FALSE = B.SassBoolean_false0;
+      A.JSClassExtension_injectSuperclass(t1._as(B.SassBoolean_true0.constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.legacyBooleanClass__closure.prototype = {
+    call$2(_, __) {
+      throw A.wrapException("new sass.types.Boolean() isn't allowed.\nUse sass.types.Boolean.TRUE or sass.types.Boolean.FALSE instead.");
+    },
+    call$1(_) {
+      return this.call$2(_, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 213
+  };
+  A.legacyBooleanClass__closure0.prototype = {
+    call$1($self) {
+      return $self === B.SassBoolean_true0;
+    },
+    $signature: 67
+  };
+  A.SassBoolean0.prototype = {
+    get$isTruthy() {
+      return this.value;
+    },
+    accept$1$1(visitor) {
+      return visitor._serialize0$_buffer.write$1(0, String(this.value));
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertBoolean$1($name) {
+      return this;
+    },
+    unaryNot$0() {
+      return this.value ? B.SassBoolean_false0 : B.SassBoolean_true0;
+    }
+  };
+  A.Box0.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return this.$ti._is(other) && other._box0$_inner === this._box0$_inner;
+    },
+    get$hashCode(_) {
+      return A.Primitives_objectHashCode(this._box0$_inner);
+    }
+  };
+  A.ModifiableBox0.prototype = {};
+  A.BuiltInCallable0.prototype = {
+    callbackFor$2(positional, names) {
+      var t1, t2, fuzzyMatch, minMismatchDistance, _i, overload, t3, mismatchDistance, t4;
+      for (t1 = this._built_in$_overloads, t2 = t1.length, fuzzyMatch = null, minMismatchDistance = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        overload = t1[_i];
+        t3 = overload._0;
+        if (t3.matches$2(positional, names))
+          return overload;
+        mismatchDistance = t3.$arguments.length - positional;
+        if (minMismatchDistance != null) {
+          t3 = Math.abs(mismatchDistance);
+          t4 = Math.abs(minMismatchDistance);
+          if (t3 > t4)
+            continue;
+          if (t3 === t4 && mismatchDistance < 0)
+            continue;
+        }
+        minMismatchDistance = mismatchDistance;
+        fuzzyMatch = overload;
+      }
+      if (fuzzyMatch != null)
+        return fuzzyMatch;
+      throw A.wrapException(A.StateError$("BuiltInCallable " + this.name + " may not have empty overloads."));
+    },
+    withName$1($name) {
+      return new A.BuiltInCallable0($name, this._built_in$_overloads, this.acceptsContent);
+    },
+    $isAsyncCallable0: 1,
+    $isAsyncBuiltInCallable0: 1,
+    $isCallable: 1,
+    get$name(receiver) {
+      return this.name;
+    },
+    get$acceptsContent() {
+      return this.acceptsContent;
+    }
+  };
+  A.BuiltInCallable$mixin_closure0.prototype = {
+    call$1($arguments) {
+      this.callback.call$1($arguments);
+      return B.C__SassNull0;
+    },
+    $signature: 3
+  };
+  A.BuiltInModule0.prototype = {
+    get$upstream() {
+      return B.List_empty18;
+    },
+    get$variableNodes() {
+      return B.Map_empty12;
+    },
+    get$extensionStore() {
+      return B.C_EmptyExtensionStore0;
+    },
+    get$css(_) {
+      return new A.CssStylesheet0(B.List_empty16, A.SourceFile$decoded(B.List_empty4, this.url).span$2(0, 0, 0));
+    },
+    get$preModuleComments() {
+      return B.Map_empty11;
+    },
+    get$transitivelyContainsCss() {
+      return false;
+    },
+    get$transitivelyContainsExtensions() {
+      return false;
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      if (!this.variables.containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$0("Undefined variable.", null));
+      throw A.wrapException(A.SassScriptException$0("Cannot modify built-in variable.", null));
+    },
+    variableIdentity$1($name) {
+      return this;
+    },
+    cloneCss$0() {
+      return this;
+    },
+    $isModule1: 1,
+    get$url(receiver) {
+      return this.url;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    },
+    get$variables() {
+      return this.variables;
+    }
+  };
+  A.calculationClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassCalculation", new A.calculationClass__closure())),
+        t2 = type$.String,
+        t3 = type$.Function;
+      A.LinkedHashMap_LinkedHashMap$_literal(["calc", new A.calculationClass__closure0(), "min", new A.calculationClass__closure1(), "max", new A.calculationClass__closure2(), "clamp", new A.calculationClass__closure3()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineStaticMethod(jsClass));
+      A.LinkedHashMap_LinkedHashMap$_literal(["assertCalculation", new A.calculationClass__closure4()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      A.LinkedHashMap_LinkedHashMap$_literal(["arguments", new A.calculationClass__closure5()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(new A.SassCalculation0("calc", A.List_List$unmodifiable(A._setArrayType([A.SassNumber_SassNumber0(1, null)], type$.JSArray_Object), type$.Object)).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.calculationClass__closure.prototype = {
+    call$2($self, _) {
+      A.jsThrow0(new self.Error("new sass.SassCalculation() isn't allowed"));
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 216
+  };
+  A.calculationClass__closure0.prototype = {
+    call$1(argument) {
+      A._assertCalculationValue(argument);
+      return new A.SassCalculation0("calc", A.List_List$unmodifiable(A._setArrayType([argument], type$.JSArray_Object), type$.Object));
+    },
+    $signature: 112
+  };
+  A.calculationClass__closure1.prototype = {
+    call$1($arguments) {
+      var t1 = self.immutable.isOrderedMap($arguments) ? J.toArray$0$x(type$.ImmutableList_2._as($arguments)) : type$.List_dynamic._as($arguments),
+        t2 = type$.Object,
+        argList = J.cast$1$0$ax(t1, t2);
+      argList.forEach$1(argList, A.calculation1___assertCalculationValue$closure());
+      return new A.SassCalculation0("min", A.List_List$unmodifiable(argList, t2));
+    },
+    $signature: 112
+  };
+  A.calculationClass__closure2.prototype = {
+    call$1($arguments) {
+      var t1 = self.immutable.isOrderedMap($arguments) ? J.toArray$0$x(type$.ImmutableList_2._as($arguments)) : type$.List_dynamic._as($arguments),
+        t2 = type$.Object,
+        argList = J.cast$1$0$ax(t1, t2);
+      argList.forEach$1(argList, A.calculation1___assertCalculationValue$closure());
+      return new A.SassCalculation0("max", A.List_List$unmodifiable(argList, t2));
+    },
+    $signature: 112
+  };
+  A.calculationClass__closure3.prototype = {
+    call$3(min, value, max) {
+      var t1;
+      if (!(value == null && !A._isValidClampArg(min)))
+        t1 = max == null && !B.JSArray_methods.any$1([min, value], A.calculation1___isValidClampArg$closure());
+      else
+        t1 = true;
+      if (t1)
+        A.jsThrow0(new self.Error("Expected at least one SassString or CalculationInterpolation in `" + A.IterableNullableExtension_whereNotNull([min, value, max], type$.Object).toString$0(0) + "`"));
+      t1 = type$.Object;
+      A.IterableNullableExtension_whereNotNull([min, value, max], t1).forEach$1(0, A.calculation1___assertCalculationValue$closure());
+      return new A.SassCalculation0("clamp", A.List_List$unmodifiable(A.IterableNullableExtension_whereNotNull([min, value, max], t1), t1));
+    },
+    call$1(min) {
+      return this.call$3(min, null, null);
+    },
+    call$2(min, value) {
+      return this.call$3(min, value, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 364
+  };
+  A.calculationClass__closure4.prototype = {
+    call$2($self, $name) {
+      return $self;
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 365
+  };
+  A.calculationClass__closure5.prototype = {
+    call$1($self) {
+      return new self.immutable.List($self.$arguments);
+    },
+    $signature: 366
+  };
+  A.calculationOperationClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.CalculationOperation", new A.calculationOperationClass__closure())),
+        t2 = type$.String,
+        t3 = type$.Function;
+      A.LinkedHashMap_LinkedHashMap$_literal(["equals", new A.calculationOperationClass__closure0(), "hashCode", new A.calculationOperationClass__closure1()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      A.LinkedHashMap_LinkedHashMap$_literal(["operator", new A.calculationOperationClass__closure2(), "left", new A.calculationOperationClass__closure3(), "right", new A.calculationOperationClass__closure4()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(A.SassCalculation_operateInternal0(B.CalculationOperator_g2q0, A.SassNumber_SassNumber0(1, null), A.SassNumber_SassNumber0(1, null), false, false).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.calculationOperationClass__closure.prototype = {
+    call$4($self, strOperator, left, right) {
+      var operator = A.IterableExtension_firstWhereOrNull(B.List_kUZ, new A.calculationOperationClass___closure(strOperator));
+      if (operator == null)
+        A.jsThrow0(new self.Error("Invalid operator: " + strOperator));
+      A._assertCalculationValue(left);
+      A._assertCalculationValue(right);
+      return A.SassCalculation_operateInternal0(operator, left, right, false, false);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 4,
+    $signature: 367
+  };
+  A.calculationOperationClass___closure.prototype = {
+    call$1(value) {
+      return value.operator === this.strOperator;
+    },
+    $signature: 368
+  };
+  A.calculationOperationClass__closure0.prototype = {
+    call$2($self, other) {
+      return $self.$eq(0, other);
+    },
+    $signature: 369
+  };
+  A.calculationOperationClass__closure1.prototype = {
+    call$1($self) {
+      return $self.get$hashCode(0);
+    },
+    $signature: 370
+  };
+  A.calculationOperationClass__closure2.prototype = {
+    call$1($self) {
+      return $self._calculation0$_operator.operator;
+    },
+    $signature: 371
+  };
+  A.calculationOperationClass__closure3.prototype = {
+    call$1($self) {
+      return $self._calculation0$_left;
+    },
+    $signature: 210
+  };
+  A.calculationOperationClass__closure4.prototype = {
+    call$1($self) {
+      return $self._calculation0$_right;
+    },
+    $signature: 210
+  };
+  A.calculationInterpolationClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.CalculationInterpolation", new A.calculationInterpolationClass__closure())),
+        t2 = type$.String,
+        t3 = type$.Function;
+      A.LinkedHashMap_LinkedHashMap$_literal(["equals", new A.calculationInterpolationClass__closure0(), "hashCode", new A.calculationInterpolationClass__closure1()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      A.LinkedHashMap_LinkedHashMap$_literal(["value", new A.calculationInterpolationClass__closure2()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(new A.CalculationInterpolation("").constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.calculationInterpolationClass__closure.prototype = {
+    call$2($self, value) {
+      return new A.CalculationInterpolation(value);
+    },
+    $signature: 373
+  };
+  A.calculationInterpolationClass__closure0.prototype = {
+    call$2($self, other) {
+      return other instanceof A.CalculationInterpolation && $self._calculation0$_value === other._calculation0$_value;
+    },
+    $signature: 374
+  };
+  A.calculationInterpolationClass__closure1.prototype = {
+    call$1($self) {
+      return B.JSString_methods.get$hashCode($self._calculation0$_value);
+    },
+    $signature: 375
+  };
+  A.calculationInterpolationClass__closure2.prototype = {
+    call$1($self) {
+      return $self._calculation0$_value;
+    },
+    $signature: 376
+  };
+  A.SassCalculation0.prototype = {
+    get$isSpecialNumber() {
+      return true;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitCalculation$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertCalculation$1($name) {
+      return this;
+    },
+    plus$1(other) {
+      if (other instanceof A.SassString0)
+        return this.super$Value$plus0(other);
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+    },
+    minus$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " - " + other.toString$0(0) + '".', null));
+    },
+    unaryPlus$0() {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "+' + this.toString$0(0) + '".', null));
+    },
+    unaryMinus$0() {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "-' + this.toString$0(0) + '".', null));
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassCalculation0 && this.name === other.name && B.C_ListEquality.equals$2(0, this.$arguments, other.$arguments);
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name) ^ B.C_ListEquality0.hash$1(this.$arguments);
+    }
+  };
+  A.SassCalculation__verifyLength_closure0.prototype = {
+    call$1(arg) {
+      return arg instanceof A.SassString0;
+    },
+    $signature: 67
+  };
+  A.CalculationOperation0.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CalculationOperation0 && this._calculation0$_operator === other._calculation0$_operator && J.$eq$(this._calculation0$_left, other._calculation0$_left) && J.$eq$(this._calculation0$_right, other._calculation0$_right);
+    },
+    get$hashCode(_) {
+      return (A.Primitives_objectHashCode(this._calculation0$_operator) ^ J.get$hashCode$(this._calculation0$_left) ^ J.get$hashCode$(this._calculation0$_right)) >>> 0;
+    },
+    toString$0(_) {
+      var parenthesized = A.serializeValue0(new A.SassCalculation0("", A._setArrayType([this], type$.JSArray_Object)), true, true);
+      return B.JSString_methods.substring$2(parenthesized, 1, parenthesized.length - 1);
+    }
+  };
+  A.CalculationOperator0.prototype = {
+    _enumToString$0() {
+      return "CalculationOperator." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.CalculationInterpolation.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CalculationInterpolation && this._calculation0$_value === other._calculation0$_value;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this._calculation0$_value);
+    },
+    toString$0(_) {
+      return this._calculation0$_value;
+    }
+  };
+  A.CallableDeclaration0.prototype = {
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.updateCanonicalizeContextPrototype_closure.prototype = {
+    call$1($self) {
+      return $self._canonicalize_context$_fromImport;
+    },
+    $signature: 377
+  };
+  A.updateCanonicalizeContextPrototype_closure0.prototype = {
+    call$1($self) {
+      $self._canonicalize_context$_wasContainingUrlAccessed = true;
+      return A.NullableExtension_andThen0($self._canonicalize_context$_containingUrl, A.utils1__dartToJSUrl$closure());
+    },
+    $signature: 378
+  };
+  A.CanonicalizeContext0.prototype = {
+    withFromImport$1$2(fromImport, callback) {
+      var t1,
+        oldFromImport = this._canonicalize_context$_fromImport;
+      this._canonicalize_context$_fromImport = true;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        this._canonicalize_context$_fromImport = oldFromImport;
+      }
+    },
+    withFromImport$2(fromImport, callback) {
+      return this.withFromImport$1$2(fromImport, callback, type$.dynamic);
+    }
+  };
+  A.Chokidar0.prototype = {};
+  A.ChokidarOptions0.prototype = {};
+  A.ChokidarWatcher0.prototype = {};
+  A.ClassSelector0.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ClassSelector0 && other.name === this.name;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitClassSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      return new A.ClassSelector0(this.name + suffix, this.span);
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    }
+  };
+  A._CloneCssVisitor0.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.isChildless,
+        rule = A.ModifiableCssAtRule$0(node.name, node.span, t1, node.value);
+      return t1 ? rule : this._clone_css$_visitChildren$2(rule, node);
+    },
+    visitCssComment$1(node) {
+      return new A.ModifiableCssComment0(node.text, node.span);
+    },
+    visitCssDeclaration$1(node) {
+      return A.ModifiableCssDeclaration$0(node.name, node.value, node.span, node.parsedAsCustomProperty, node.valueSpanForMap);
+    },
+    visitCssImport$1(node) {
+      return new A.ModifiableCssImport0(node.url, node.modifiers, node.span);
+    },
+    visitCssKeyframeBlock$1(node) {
+      return this._clone_css$_visitChildren$2(A.ModifiableCssKeyframeBlock$0(node.selector, node.span), node);
+    },
+    visitCssMediaRule$1(node) {
+      return this._clone_css$_visitChildren$2(A.ModifiableCssMediaRule$0(node.queries, node.span), node);
+    },
+    visitCssStyleRule$1(node) {
+      var _0_0 = this._clone_css$_oldToNewSelectors.$index(0, node._style_rule0$_selector._box0$_inner.value);
+      if (_0_0 != null)
+        return this._clone_css$_visitChildren$2(A.ModifiableCssStyleRule$0(_0_0, node.span, false, node.originalSelector), node);
+      else
+        throw A.wrapException(A.StateError$(string$.The_Ex));
+    },
+    visitCssStylesheet$1(node) {
+      return this._clone_css$_visitChildren$2(A.ModifiableCssStylesheet$0(node.get$span(node)), node);
+    },
+    visitCssSupportsRule$1(node) {
+      return this._clone_css$_visitChildren$2(A.ModifiableCssSupportsRule$0(node.condition, node.span), node);
+    },
+    _clone_css$_visitChildren$1$2(newParent, oldParent) {
+      var t1, t2, newChild;
+      for (t1 = J.get$iterator$ax(oldParent.get$children(oldParent)); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        newChild = t2.accept$1(this);
+        newChild.isGroupEnd = t2.get$isGroupEnd();
+        newParent.addChild$1(newChild);
+      }
+      return newParent;
+    },
+    _clone_css$_visitChildren$2(newParent, oldParent) {
+      return this._clone_css$_visitChildren$1$2(newParent, oldParent, type$.ModifiableCssParentNode_2);
+    }
+  };
+  A.ColorExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitColorExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return A.serializeValue0(this.value, true, true);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.global_closure32.prototype = {
+    call$1($arguments) {
+      return A._rgb0("rgb", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure33.prototype = {
+    call$1($arguments) {
+      return A._rgb0("rgb", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure34.prototype = {
+    call$1($arguments) {
+      return A._rgbTwoArg0("rgb", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure35.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels0("rgb", A._setArrayType(["$red", "$green", "$blue"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString0 ? parsed : A._rgb0("rgb", type$.List_Value_2._as(parsed));
+    },
+    $signature: 3
+  };
+  A.global_closure36.prototype = {
+    call$1($arguments) {
+      return A._rgb0("rgba", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure37.prototype = {
+    call$1($arguments) {
+      return A._rgb0("rgba", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure38.prototype = {
+    call$1($arguments) {
+      return A._rgbTwoArg0("rgba", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure39.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels0("rgba", A._setArrayType(["$red", "$green", "$blue"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString0 ? parsed : A._rgb0("rgba", type$.List_Value_2._as(parsed));
+    },
+    $signature: 3
+  };
+  A.global_closure40.prototype = {
+    call$1($arguments) {
+      var color, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        weight = t1.$index($arguments, 1).assertNumber$1("weight");
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0 || t1.$index($arguments, 0).get$isSpecialNumber()) {
+        if (weight._number1$_value !== 100 || !weight.hasUnit$1("%"))
+          throw A.wrapException(string$.Only_oa);
+        return A._functionString0("invert", t1.take$1($arguments, 1));
+      }
+      color = t1.$index($arguments, 0).assertColor$1("color");
+      t1 = color.get$red(0);
+      t2 = color.get$green(0);
+      return A._mixColors0(color.changeRgb$3$blue$green$red(255 - color.get$blue(0), 255 - t2, 255 - t1), color, weight);
+    },
+    $signature: 3
+  };
+  A.global_closure41.prototype = {
+    call$1($arguments) {
+      return A._hsl0("hsl", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure42.prototype = {
+    call$1($arguments) {
+      return A._hsl0("hsl", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure43.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0).get$isVar() || t1.$index($arguments, 1).get$isVar())
+        return A._functionString0("hsl", $arguments);
+      else
+        throw A.wrapException(A.SassScriptException$0("Missing argument $lightness.", null));
+    },
+    $signature: 19
+  };
+  A.global_closure44.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels0("hsl", A._setArrayType(["$hue", "$saturation", "$lightness"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString0 ? parsed : A._hsl0("hsl", type$.List_Value_2._as(parsed));
+    },
+    $signature: 3
+  };
+  A.global_closure45.prototype = {
+    call$1($arguments) {
+      return A._hsl0("hsla", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure46.prototype = {
+    call$1($arguments) {
+      return A._hsl0("hsla", $arguments);
+    },
+    $signature: 3
+  };
+  A.global_closure47.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0).get$isVar() || t1.$index($arguments, 1).get$isVar())
+        return A._functionString0("hsla", $arguments);
+      else
+        throw A.wrapException(A.SassScriptException$0("Missing argument $lightness.", null));
+    },
+    $signature: 19
+  };
+  A.global_closure48.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels0("hsla", A._setArrayType(["$hue", "$saturation", "$lightness"], type$.JSArray_String), J.get$first$ax($arguments));
+      return parsed instanceof A.SassString0 ? parsed : A._hsl0("hsla", type$.List_Value_2._as(parsed));
+    },
+    $signature: 3
+  };
+  A.global_closure49.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0 || t1.$index($arguments, 0).get$isSpecialNumber())
+        return A._functionString0("grayscale", $arguments);
+      return t1.$index($arguments, 0).assertColor$1("color").changeHsl$1$saturation(0);
+    },
+    $signature: 3
+  };
+  A.global_closure50.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        degrees = A._angleValue0(t1.$index($arguments, 1), "degrees");
+      return color.changeHsl$1$hue(color.get$hue(0) + degrees);
+    },
+    $signature: 27
+  };
+  A.global_closure51.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$lightness(B.JSNumber_methods.clamp$2(color.get$lightness(0) + amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 27
+  };
+  A.global_closure52.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$lightness(B.JSNumber_methods.clamp$2(color.get$lightness(0) - amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 27
+  };
+  A.global_closure53.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0 || t1.$index($arguments, 0).get$isSpecialNumber())
+        return A._functionString0("saturate", $arguments);
+      return new A.SassString0("saturate(" + A.serializeValue0(t1.$index($arguments, 0).assertNumber$1("amount"), false, true) + ")", false);
+    },
+    $signature: 19
+  };
+  A.global_closure54.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$saturation(B.JSNumber_methods.clamp$2(color.get$saturation(0) + amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 27
+  };
+  A.global_closure55.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        color = t1.$index($arguments, 0).assertColor$1("color"),
+        amount = t1.$index($arguments, 1).assertNumber$1("amount");
+      return color.changeHsl$1$saturation(B.JSNumber_methods.clamp$2(color.get$saturation(0) - amount.valueInRange$3(0, 100, "amount"), 0, 100));
+    },
+    $signature: 27
+  };
+  A.global_closure56.prototype = {
+    call$1($arguments) {
+      var argument = J.$index$asx($arguments, 0);
+      if (argument instanceof A.SassString0 && !argument._string0$_hasQuotes && B.JSString_methods.contains$1(argument._string0$_text, $.$get$_microsoftFilterStart0()))
+        return A._functionString0("alpha", $arguments);
+      return A.SassNumber_SassNumber0(argument.assertColor$1("color")._color1$_alpha, null);
+    },
+    $signature: 3
+  };
+  A.global_closure57.prototype = {
+    call$1($arguments) {
+      var t1,
+        argList = J.$index$asx($arguments, 0).get$asList();
+      if (argList.length !== 0 && B.JSArray_methods.every$1(argList, new A.global__closure0()))
+        return A._functionString0("alpha", $arguments);
+      t1 = argList.length;
+      if (t1 === 0)
+        throw A.wrapException(A.SassScriptException$0("Missing argument $color.", null));
+      else
+        throw A.wrapException(A.SassScriptException$0("Only 1 argument allowed, but " + t1 + " were passed.", null));
+    },
+    $signature: 19
+  };
+  A.global__closure0.prototype = {
+    call$1(argument) {
+      return argument instanceof A.SassString0 && !argument._string0$_hasQuotes && B.JSString_methods.contains$1(argument._string0$_text, $.$get$_microsoftFilterStart0());
+    },
+    $signature: 49
+  };
+  A.global_closure58.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0 || t1.$index($arguments, 0).get$isSpecialNumber())
+        return A._functionString0("opacity", $arguments);
+      return A.SassNumber_SassNumber0(t1.$index($arguments, 0).assertColor$1("color")._color1$_alpha, null);
+    },
+    $signature: 3
+  };
+  A.module_closure12.prototype = {
+    call$1($arguments) {
+      var result, color, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        weight = t1.$index($arguments, 1).assertNumber$1("weight");
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0) {
+        if (weight._number1$_value !== 100 || !weight.hasUnit$1("%"))
+          throw A.wrapException(string$.Only_oa);
+        result = A._functionString0("invert", t1.take$1($arguments, 1));
+        A.warnForDeprecation0("Passing a number (" + A.S(t1.$index($arguments, 0)) + string$.x29x20to_ci + result.toString$0(0), B.Deprecation_EfO);
+        return result;
+      }
+      color = t1.$index($arguments, 0).assertColor$1("color");
+      t1 = color.get$red(0);
+      t2 = color.get$green(0);
+      return A._mixColors0(color.changeRgb$3$blue$green$red(255 - color.get$blue(0), 255 - t2, 255 - t1), color, weight);
+    },
+    $signature: 3
+  };
+  A.module_closure13.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0) {
+        result = A._functionString0("grayscale", t1.take$1($arguments, 1));
+        A.warnForDeprecation0("Passing a number (" + A.S(t1.$index($arguments, 0)) + string$.x29x20to_cg + result.toString$0(0), B.Deprecation_EfO);
+        return result;
+      }
+      return t1.$index($arguments, 0).assertColor$1("color").changeHsl$1$saturation(0);
+    },
+    $signature: 3
+  };
+  A.module_closure14.prototype = {
+    call$1($arguments) {
+      return A._hwb0($arguments);
+    },
+    $signature: 3
+  };
+  A.module_closure15.prototype = {
+    call$1($arguments) {
+      var parsed = A._parseChannels0("hwb", A._setArrayType(["$hue", "$whiteness", "$blackness"], type$.JSArray_String), J.get$first$ax($arguments));
+      if (parsed instanceof A.SassString0)
+        throw A.wrapException(A.SassScriptException$0('Expected numeric channels, got "' + parsed.toString$0(0) + '".', null));
+      else
+        return A._hwb0(type$.List_Value_2._as(parsed));
+    },
+    $signature: 3
+  };
+  A.module_closure16.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$whiteness(0), "%");
+    },
+    $signature: 12
+  };
+  A.module_closure17.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$blackness(0), "%");
+    },
+    $signature: 12
+  };
+  A.module_closure18.prototype = {
+    call$1($arguments) {
+      var result,
+        argument = J.$index$asx($arguments, 0);
+      if (argument instanceof A.SassString0 && !argument._string0$_hasQuotes && B.JSString_methods.contains$1(argument._string0$_text, $.$get$_microsoftFilterStart0())) {
+        result = A._functionString0("alpha", $arguments);
+        A.warnForDeprecation0(string$.Using_c + result.toString$0(0), B.Deprecation_EfO);
+        return result;
+      }
+      return A.SassNumber_SassNumber0(argument.assertColor$1("color")._color1$_alpha, null);
+    },
+    $signature: 3
+  };
+  A.module_closure19.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = J.getInterceptor$asx($arguments);
+      if (B.JSArray_methods.every$1(t1.$index($arguments, 0).get$asList(), new A.module__closure4())) {
+        result = A._functionString0("alpha", $arguments);
+        A.warnForDeprecation0(string$.Using_c + result.toString$0(0), B.Deprecation_EfO);
+        return result;
+      }
+      throw A.wrapException(A.SassScriptException$0("Only 1 argument allowed, but " + t1.get$length($arguments) + " were passed.", null));
+    },
+    $signature: 19
+  };
+  A.module__closure4.prototype = {
+    call$1(argument) {
+      return argument instanceof A.SassString0 && !argument._string0$_hasQuotes && B.JSString_methods.contains$1(argument._string0$_text, $.$get$_microsoftFilterStart0());
+    },
+    $signature: 49
+  };
+  A.module_closure20.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = J.getInterceptor$asx($arguments);
+      if (t1.$index($arguments, 0) instanceof A.SassNumber0) {
+        result = A._functionString0("opacity", $arguments);
+        A.warnForDeprecation0("Passing a number (" + A.S(t1.$index($arguments, 0)) + string$.x20to_co + result.toString$0(0), B.Deprecation_EfO);
+        return result;
+      }
+      return A.SassNumber_SassNumber0(t1.$index($arguments, 0).assertColor$1("color")._color1$_alpha, null);
+    },
+    $signature: 3
+  };
+  A._red_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$red(0), null);
+    },
+    $signature: 12
+  };
+  A._green_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$green(0), null);
+    },
+    $signature: 12
+  };
+  A._blue_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$blue(0), null);
+    },
+    $signature: 12
+  };
+  A._mix_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A._mixColors0(t1.$index($arguments, 0).assertColor$1("color1"), t1.$index($arguments, 1).assertColor$1("color2"), t1.$index($arguments, 2).assertNumber$1("weight"));
+    },
+    $signature: 27
+  };
+  A._hue_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$hue(0), "deg");
+    },
+    $signature: 12
+  };
+  A._saturation_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$saturation(0), "%");
+    },
+    $signature: 12
+  };
+  A._lightness_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.get$first$ax($arguments).assertColor$1("color").get$lightness(0), "%");
+    },
+    $signature: 12
+  };
+  A._complement_closure0.prototype = {
+    call$1($arguments) {
+      var color = J.$index$asx($arguments, 0).assertColor$1("color");
+      return color.changeHsl$1$hue(color.get$hue(0) + 180);
+    },
+    $signature: 27
+  };
+  A._adjust_closure0.prototype = {
+    call$1($arguments) {
+      return A._updateComponents0($arguments, true, false, false);
+    },
+    $signature: 27
+  };
+  A._scale_closure0.prototype = {
+    call$1($arguments) {
+      return A._updateComponents0($arguments, false, false, true);
+    },
+    $signature: 27
+  };
+  A._change_closure0.prototype = {
+    call$1($arguments) {
+      return A._updateComponents0($arguments, false, true, false);
+    },
+    $signature: 27
+  };
+  A._ieHexStr_closure0.prototype = {
+    call$1($arguments) {
+      var color = J.$index$asx($arguments, 0).assertColor$1("color"),
+        t1 = new A._ieHexStr_closure_hexString0();
+      return new A.SassString0("#" + A.S(t1.call$1(A.fuzzyRound0(color._color1$_alpha * 255))) + A.S(t1.call$1(color.get$red(0))) + A.S(t1.call$1(color.get$green(0))) + A.S(t1.call$1(color.get$blue(0))), false);
+    },
+    $signature: 19
+  };
+  A._ieHexStr_closure_hexString0.prototype = {
+    call$1(component) {
+      return B.JSString_methods.padLeft$2(B.JSInt_methods.toRadixString$1(component, 16), 2, "0").toUpperCase();
+    },
+    $signature: 194
+  };
+  A._updateComponents_getParam0.prototype = {
+    call$5$assertPercent$checkPercent$checkUnitless($name, max, assertPercent, checkPercent, checkUnitless) {
+      var t2, _this = this,
+        t1 = _this.keywords.remove$1(0, $name),
+        number = t1 == null ? null : t1.assertNumber$1($name);
+      if (number == null)
+        return null;
+      t1 = _this.scale;
+      t2 = !t1;
+      if (t2 && checkUnitless)
+        if (number.get$hasUnits())
+          A.warnForDeprecation0("$" + $name + ": Passing a number with unit " + number.get$unitString() + string$.x20is_de + number.unitSuggestion$1($name) + string$.x0a_Morex3a, B.Deprecation_oCX);
+      if (t2 && checkPercent)
+        A._checkPercent0(number, $name);
+      if (!t2 || assertPercent)
+        number.assertUnit$2("%", $name);
+      if (t1)
+        max = 100;
+      if (!t2 || assertPercent)
+        t1 = number.valueInRange$3(_this.change ? 0 : -max, max, $name);
+      else {
+        t1 = _this.change ? 0 : -max;
+        t1 = number.valueInRangeWithUnit$4(t1, max, $name, checkPercent ? "%" : "");
+      }
+      return t1;
+    },
+    call$2($name, max) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, false, false, false);
+    },
+    call$3$checkUnitless($name, max, checkUnitless) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, false, false, checkUnitless);
+    },
+    call$3$checkPercent($name, max, checkPercent) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, false, checkPercent, false);
+    },
+    call$3$assertPercent($name, max, assertPercent) {
+      return this.call$5$assertPercent$checkPercent$checkUnitless($name, max, assertPercent, false, false);
+    },
+    $signature: 193
+  };
+  A._updateComponents_closure1.prototype = {
+    call$1(hue) {
+      return A._angleValue0(hue, "hue");
+    },
+    $signature: 106
+  };
+  A._updateComponents_closure2.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._updateComponents_updateValue0.prototype = {
+    call$3(current, param, max) {
+      var t1;
+      if (param == null)
+        return current;
+      if (this.change)
+        return param;
+      if (this.adjust)
+        return B.JSNumber_methods.clamp$2(current + param, 0, max);
+      t1 = param > 0 ? max - current : current;
+      return current + t1 * (param / 100);
+    },
+    $signature: 189
+  };
+  A._updateComponents_updateRgb0.prototype = {
+    call$2(current, param) {
+      return A.fuzzyRound0(this.updateValue.call$3(current, param, 255));
+    },
+    $signature: 254
+  };
+  A._functionString_closure0.prototype = {
+    call$1(argument) {
+      return A.serializeValue0(argument, false, true);
+    },
+    $signature: 138
+  };
+  A._removedColorFunction_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = this.name,
+        t2 = J.getInterceptor$asx($arguments),
+        t3 = A.S(t2.$index($arguments, 0)),
+        t4 = this.negative ? "-" : "";
+      throw A.wrapException(A.SassScriptException$0("The function " + t1 + string$.x28__isn + t3 + ", $" + this.argument + ": " + t4 + A.S(t2.$index($arguments, 1)) + string$.x29x0a_Mor + t1, null));
+    },
+    $signature: 385
+  };
+  A._rgb_closure0.prototype = {
+    call$1(alpha) {
+      return A._percentageOrUnitless0(alpha.assertNumber$1("alpha"), 1, "alpha");
+    },
+    $signature: 106
+  };
+  A._hsl_closure0.prototype = {
+    call$1(alpha) {
+      return A._percentageOrUnitless0(alpha.assertNumber$1("alpha"), 1, "alpha");
+    },
+    $signature: 106
+  };
+  A._hwb_closure0.prototype = {
+    call$1(alpha) {
+      return A._percentageOrUnitless0(alpha.assertNumber$1("alpha"), 1, "alpha");
+    },
+    $signature: 106
+  };
+  A._parseChannels_closure0.prototype = {
+    call$1(value) {
+      return value.get$isVar();
+    },
+    $signature: 49
+  };
+  A.colorClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassColor", new A.colorClass__closure()));
+      J.get$$prototype$x(jsClass).change = A.allowInteropCaptureThisNamed("change", new A.colorClass__closure0());
+      A.LinkedHashMap_LinkedHashMap$_literal(["red", new A.colorClass__closure1(), "green", new A.colorClass__closure2(), "blue", new A.colorClass__closure3(), "hue", new A.colorClass__closure4(), "saturation", new A.colorClass__closure5(), "lightness", new A.colorClass__closure6(), "whiteness", new A.colorClass__closure7(), "blackness", new A.colorClass__closure8(), "alpha", new A.colorClass__closure9()], type$.String, type$.Function).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(A.SassColor$rgb0(0, 0, 0, 1).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.colorClass__closure.prototype = {
+    call$2($self, color) {
+      var t2, t3, t4,
+        t1 = J.getInterceptor$x(color);
+      if (t1.get$red(color) != null) {
+        t2 = t1.get$red(color);
+        t2.toString;
+        t2 = A.fuzzyRound0(t2);
+        t3 = t1.get$green(color);
+        t3.toString;
+        t3 = A.fuzzyRound0(t3);
+        t4 = t1.get$blue(color);
+        t4.toString;
+        t4 = A.fuzzyRound0(t4);
+        t1 = t1.get$alpha(color);
+        return A.SassColor$rgb0(t2, t3, t4, A._asBool($.$get$_isUndefined().call$1(t1)) ? 1 : t1);
+      } else if (t1.get$saturation(color) != null) {
+        t2 = t1.get$hue(color);
+        t2.toString;
+        t3 = t1.get$saturation(color);
+        t3.toString;
+        t4 = t1.get$lightness(color);
+        t4.toString;
+        t1 = t1.get$alpha(color);
+        return A.SassColor$hsl(t2, t3, t4, A._asBool($.$get$_isUndefined().call$1(t1)) ? 1 : t1);
+      } else {
+        t2 = t1.get$hue(color);
+        t2.toString;
+        t3 = t1.get$whiteness(color);
+        t3.toString;
+        t4 = t1.get$blackness(color);
+        t4.toString;
+        t1 = t1.get$alpha(color);
+        return A.SassColor_SassColor$hwb0(t2, t3, t4, A._asBool($.$get$_isUndefined().call$1(t1)) ? 1 : t1);
+      }
+    },
+    $signature: 386
+  };
+  A.colorClass__closure0.prototype = {
+    call$2($self, options) {
+      var t2, t3, t4,
+        t1 = J.getInterceptor$x(options);
+      if (t1.get$whiteness(options) != null || t1.get$blackness(options) != null) {
+        t2 = t1.get$hue(options);
+        if (t2 == null)
+          t2 = $self.get$hue(0);
+        t3 = t1.get$whiteness(options);
+        if (t3 == null)
+          t3 = $self.get$whiteness(0);
+        t4 = t1.get$blackness(options);
+        if (t4 == null)
+          t4 = $self.get$blackness(0);
+        t1 = t1.get$alpha(options);
+        return $self.changeHwb$4$alpha$blackness$hue$whiteness(t1 == null ? $self._color1$_alpha : t1, t4, t2, t3);
+      } else if (t1.get$hue(options) != null || t1.get$saturation(options) != null || t1.get$lightness(options) != null) {
+        t2 = t1.get$hue(options);
+        if (t2 == null)
+          t2 = $self.get$hue(0);
+        t3 = t1.get$saturation(options);
+        if (t3 == null)
+          t3 = $self.get$saturation(0);
+        t4 = t1.get$lightness(options);
+        if (t4 == null)
+          t4 = $self.get$lightness(0);
+        t1 = t1.get$alpha(options);
+        return $self.changeHsl$4$alpha$hue$lightness$saturation(t1 == null ? $self._color1$_alpha : t1, t2, t4, t3);
+      } else if (t1.get$red(options) != null || t1.get$green(options) != null || t1.get$blue(options) != null) {
+        t2 = A.NullableExtension_andThen0(t1.get$red(options), A.number2__fuzzyRound$closure());
+        if (t2 == null)
+          t2 = $self.get$red(0);
+        t3 = A.NullableExtension_andThen0(t1.get$green(options), A.number2__fuzzyRound$closure());
+        if (t3 == null)
+          t3 = $self.get$green(0);
+        t4 = A.NullableExtension_andThen0(t1.get$blue(options), A.number2__fuzzyRound$closure());
+        if (t4 == null)
+          t4 = $self.get$blue(0);
+        t1 = t1.get$alpha(options);
+        return $self.changeRgb$4$alpha$blue$green$red(t1 == null ? $self._color1$_alpha : t1, t4, t3, t2);
+      } else {
+        t1 = t1.get$alpha(options);
+        return $self.changeAlpha$1(t1 == null ? $self._color1$_alpha : t1);
+      }
+    },
+    $signature: 387
+  };
+  A.colorClass__closure1.prototype = {
+    call$1($self) {
+      return $self.get$red(0);
+    },
+    $signature: 118
+  };
+  A.colorClass__closure2.prototype = {
+    call$1($self) {
+      return $self.get$green(0);
+    },
+    $signature: 118
+  };
+  A.colorClass__closure3.prototype = {
+    call$1($self) {
+      return $self.get$blue(0);
+    },
+    $signature: 118
+  };
+  A.colorClass__closure4.prototype = {
+    call$1($self) {
+      return $self.get$hue(0);
+    },
+    $signature: 59
+  };
+  A.colorClass__closure5.prototype = {
+    call$1($self) {
+      return $self.get$saturation(0);
+    },
+    $signature: 59
+  };
+  A.colorClass__closure6.prototype = {
+    call$1($self) {
+      return $self.get$lightness(0);
+    },
+    $signature: 59
+  };
+  A.colorClass__closure7.prototype = {
+    call$1($self) {
+      return $self.get$whiteness(0);
+    },
+    $signature: 59
+  };
+  A.colorClass__closure8.prototype = {
+    call$1($self) {
+      return $self.get$blackness(0);
+    },
+    $signature: 59
+  };
+  A.colorClass__closure9.prototype = {
+    call$1($self) {
+      return $self._color1$_alpha;
+    },
+    $signature: 59
+  };
+  A._Channels.prototype = {};
+  A._NodeSassColor.prototype = {};
+  A.legacyColorClass_closure.prototype = {
+    call$6(thisArg, redOrArgb, green, blue, alpha, dartValue) {
+      var red, t1, t2, t3, t4;
+      if (dartValue != null) {
+        J.set$dartValue$x(thisArg, dartValue);
+        return;
+      }
+      if (green == null || blue == null) {
+        A._asInt(redOrArgb);
+        alpha = B.JSInt_methods._shrOtherPositive$1(redOrArgb, 24) / 255;
+        red = B.JSInt_methods.$mod(B.JSInt_methods._shrOtherPositive$1(redOrArgb, 16), 256);
+        green = B.JSInt_methods.$mod(B.JSInt_methods._shrOtherPositive$1(redOrArgb, 8), 256);
+        blue = B.JSInt_methods.$mod(redOrArgb, 256);
+      } else {
+        redOrArgb.toString;
+        red = redOrArgb;
+      }
+      t1 = A.fuzzyRound0(B.JSNumber_methods.clamp$2(red, 0, 255));
+      t2 = A.fuzzyRound0(B.JSNumber_methods.clamp$2(green, 0, 255));
+      t3 = A.fuzzyRound0(B.JSNumber_methods.clamp$2(blue, 0, 255));
+      t4 = alpha == null ? null : B.JSNumber_methods.clamp$2(alpha, 0, 1);
+      J.set$dartValue$x(thisArg, A.SassColor$rgb0(t1, t2, t3, t4 == null ? 1 : t4));
+    },
+    call$2(thisArg, redOrArgb) {
+      var _null = null;
+      return this.call$6(thisArg, redOrArgb, _null, _null, _null, _null);
+    },
+    call$3(thisArg, redOrArgb, green) {
+      return this.call$6(thisArg, redOrArgb, green, null, null, null);
+    },
+    call$4(thisArg, redOrArgb, green, blue) {
+      return this.call$6(thisArg, redOrArgb, green, blue, null, null);
+    },
+    call$5(thisArg, redOrArgb, green, blue, alpha) {
+      return this.call$6(thisArg, redOrArgb, green, blue, alpha, null);
+    },
+    "call*": "call$6",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null, null, null];
+    },
+    $signature: 390
+  };
+  A.legacyColorClass_closure0.prototype = {
+    call$1(thisArg) {
+      return J.get$red$x(J.get$dartValue$x(thisArg));
+    },
+    $signature: 120
+  };
+  A.legacyColorClass_closure1.prototype = {
+    call$1(thisArg) {
+      return J.get$green$x(J.get$dartValue$x(thisArg));
+    },
+    $signature: 120
+  };
+  A.legacyColorClass_closure2.prototype = {
+    call$1(thisArg) {
+      return J.get$blue$x(J.get$dartValue$x(thisArg));
+    },
+    $signature: 120
+  };
+  A.legacyColorClass_closure3.prototype = {
+    call$1(thisArg) {
+      return J.get$dartValue$x(thisArg)._color1$_alpha;
+    },
+    $signature: 392
+  };
+  A.legacyColorClass_closure4.prototype = {
+    call$2(thisArg, value) {
+      var t1 = J.getInterceptor$x(thisArg);
+      t1.set$dartValue(thisArg, t1.get$dartValue(thisArg).changeRgb$1$red(A.fuzzyRound0(B.JSNumber_methods.clamp$2(value, 0, 255))));
+    },
+    $signature: 90
+  };
+  A.legacyColorClass_closure5.prototype = {
+    call$2(thisArg, value) {
+      var t1 = J.getInterceptor$x(thisArg);
+      t1.set$dartValue(thisArg, t1.get$dartValue(thisArg).changeRgb$1$green(A.fuzzyRound0(B.JSNumber_methods.clamp$2(value, 0, 255))));
+    },
+    $signature: 90
+  };
+  A.legacyColorClass_closure6.prototype = {
+    call$2(thisArg, value) {
+      var t1 = J.getInterceptor$x(thisArg);
+      t1.set$dartValue(thisArg, t1.get$dartValue(thisArg).changeRgb$1$blue(A.fuzzyRound0(B.JSNumber_methods.clamp$2(value, 0, 255))));
+    },
+    $signature: 90
+  };
+  A.legacyColorClass_closure7.prototype = {
+    call$2(thisArg, value) {
+      var t1 = J.getInterceptor$x(thisArg);
+      t1.set$dartValue(thisArg, t1.get$dartValue(thisArg).changeRgb$1$alpha(B.JSNumber_methods.clamp$2(value, 0, 1)));
+    },
+    $signature: 90
+  };
+  A.SassColor0.prototype = {
+    get$red(_) {
+      var t1;
+      if (this._color1$_red == null)
+        this._color1$_hslToRgb$0();
+      t1 = this._color1$_red;
+      t1.toString;
+      return t1;
+    },
+    get$green(_) {
+      var t1;
+      if (this._color1$_green == null)
+        this._color1$_hslToRgb$0();
+      t1 = this._color1$_green;
+      t1.toString;
+      return t1;
+    },
+    get$blue(_) {
+      var t1;
+      if (this._color1$_blue == null)
+        this._color1$_hslToRgb$0();
+      t1 = this._color1$_blue;
+      t1.toString;
+      return t1;
+    },
+    get$hue(_) {
+      var t1;
+      if (this._color1$_hue == null)
+        this._color1$_rgbToHsl$0();
+      t1 = this._color1$_hue;
+      t1.toString;
+      return t1;
+    },
+    get$saturation(_) {
+      var t1;
+      if (this._color1$_saturation == null)
+        this._color1$_rgbToHsl$0();
+      t1 = this._color1$_saturation;
+      t1.toString;
+      return t1;
+    },
+    get$lightness(_) {
+      var t1;
+      if (this._color1$_lightness == null)
+        this._color1$_rgbToHsl$0();
+      t1 = this._color1$_lightness;
+      t1.toString;
+      return t1;
+    },
+    get$whiteness(_) {
+      return Math.min(Math.min(this.get$red(0), this.get$green(0)), this.get$blue(0)) / 255 * 100;
+    },
+    get$blackness(_) {
+      return 100 - Math.max(Math.max(this.get$red(0), this.get$green(0)), this.get$blue(0)) / 255 * 100;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitColor$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertColor$1($name) {
+      return this;
+    },
+    changeRgb$4$alpha$blue$green$red(alpha, blue, green, red) {
+      var _this = this,
+        t1 = red == null ? _this.get$red(0) : red,
+        t2 = green == null ? _this.get$green(0) : green,
+        t3 = blue == null ? _this.get$blue(0) : blue;
+      return A.SassColor$rgb0(t1, t2, t3, alpha == null ? _this._color1$_alpha : alpha);
+    },
+    changeRgb$3$blue$green$red(blue, green, red) {
+      return this.changeRgb$4$alpha$blue$green$red(null, blue, green, red);
+    },
+    changeRgb$1$alpha(alpha) {
+      return this.changeRgb$4$alpha$blue$green$red(alpha, null, null, null);
+    },
+    changeRgb$1$blue(blue) {
+      return this.changeRgb$4$alpha$blue$green$red(null, blue, null, null);
+    },
+    changeRgb$1$green(green) {
+      return this.changeRgb$4$alpha$blue$green$red(null, null, green, null);
+    },
+    changeRgb$1$red(red) {
+      return this.changeRgb$4$alpha$blue$green$red(null, null, null, red);
+    },
+    changeHsl$4$alpha$hue$lightness$saturation(alpha, hue, lightness, saturation) {
+      var _this = this,
+        t1 = hue == null ? _this.get$hue(0) : hue,
+        t2 = saturation == null ? _this.get$saturation(0) : saturation,
+        t3 = lightness == null ? _this.get$lightness(0) : lightness;
+      return A.SassColor$hsl(t1, t2, t3, alpha == null ? _this._color1$_alpha : alpha);
+    },
+    changeHsl$1$saturation(saturation) {
+      return this.changeHsl$4$alpha$hue$lightness$saturation(null, null, null, saturation);
+    },
+    changeHsl$1$lightness(lightness) {
+      return this.changeHsl$4$alpha$hue$lightness$saturation(null, null, lightness, null);
+    },
+    changeHsl$1$hue(hue) {
+      return this.changeHsl$4$alpha$hue$lightness$saturation(null, hue, null, null);
+    },
+    changeHwb$4$alpha$blackness$hue$whiteness(alpha, blackness, hue, whiteness) {
+      var t1 = hue == null ? this.get$hue(0) : hue;
+      return A.SassColor_SassColor$hwb0(t1, whiteness, blackness, alpha);
+    },
+    changeAlpha$1(alpha) {
+      var _this = this;
+      return new A.SassColor0(_this._color1$_red, _this._color1$_green, _this._color1$_blue, _this._color1$_hue, _this._color1$_saturation, _this._color1$_lightness, A.fuzzyAssertRange0(alpha, 0, 1, "alpha"), null);
+    },
+    plus$1(other) {
+      if (!(other instanceof A.SassNumber0) && !(other instanceof A.SassColor0))
+        return this.super$Value$plus0(other);
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+    },
+    minus$1(other) {
+      if (!(other instanceof A.SassNumber0) && !(other instanceof A.SassColor0))
+        return this.super$Value$minus0(other);
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " - " + other.toString$0(0) + '".', null));
+    },
+    dividedBy$1(other) {
+      if (!(other instanceof A.SassNumber0) && !(other instanceof A.SassColor0))
+        return this.super$Value$dividedBy0(other);
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " / " + other.toString$0(0) + '".', null));
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.SassColor0 && other.get$red(0) === _this.get$red(0) && other.get$green(0) === _this.get$green(0) && other.get$blue(0) === _this.get$blue(0) && other._color1$_alpha === _this._color1$_alpha;
+    },
+    get$hashCode(_) {
+      var _this = this;
+      return B.JSInt_methods.get$hashCode(_this.get$red(0)) ^ B.JSInt_methods.get$hashCode(_this.get$green(0)) ^ B.JSInt_methods.get$hashCode(_this.get$blue(0)) ^ B.JSNumber_methods.get$hashCode(_this._color1$_alpha);
+    },
+    _color1$_rgbToHsl$0() {
+      var t2, lightness, _this = this,
+        scaledRed = _this.get$red(0) / 255,
+        scaledGreen = _this.get$green(0) / 255,
+        scaledBlue = _this.get$blue(0) / 255,
+        max = Math.max(Math.max(scaledRed, scaledGreen), scaledBlue),
+        min = Math.min(Math.min(scaledRed, scaledGreen), scaledBlue),
+        delta = max - min,
+        t1 = max === min;
+      if (t1)
+        _this._color1$_hue = 0;
+      else if (max === scaledRed)
+        _this._color1$_hue = B.JSNumber_methods.$mod(60 * (scaledGreen - scaledBlue) / delta, 360);
+      else if (max === scaledGreen)
+        _this._color1$_hue = B.JSNumber_methods.$mod(120 + 60 * (scaledBlue - scaledRed) / delta, 360);
+      else if (max === scaledBlue)
+        _this._color1$_hue = B.JSNumber_methods.$mod(240 + 60 * (scaledRed - scaledGreen) / delta, 360);
+      t2 = max + min;
+      lightness = 50 * t2;
+      _this._color1$_lightness = lightness;
+      if (t1)
+        _this._color1$_saturation = 0;
+      else {
+        t1 = 100 * delta;
+        if (lightness < 50)
+          _this._color1$_saturation = t1 / t2;
+        else
+          _this._color1$_saturation = t1 / (2 - max - min);
+      }
+    },
+    _color1$_hslToRgb$0() {
+      var _this = this,
+        scaledHue = _this.get$hue(0) / 360,
+        scaledSaturation = _this.get$saturation(0) / 100,
+        scaledLightness = _this.get$lightness(0) / 100,
+        m2 = scaledLightness <= 0.5 ? scaledLightness * (scaledSaturation + 1) : scaledLightness + scaledSaturation - scaledLightness * scaledSaturation,
+        m1 = scaledLightness * 2 - m2;
+      _this._color1$_red = A.fuzzyRound0(A.SassColor__hueToRgb0(m1, m2, scaledHue + 0.3333333333333333) * 255);
+      _this._color1$_green = A.fuzzyRound0(A.SassColor__hueToRgb0(m1, m2, scaledHue) * 255);
+      _this._color1$_blue = A.fuzzyRound0(A.SassColor__hueToRgb0(m1, m2, scaledHue - 0.3333333333333333) * 255);
+    }
+  };
+  A.SassColor_SassColor$hwb_toRgb0.prototype = {
+    call$1(hue) {
+      return A.fuzzyRound0((A.SassColor__hueToRgb0(0, 1, hue) * this.factor + this._box_0.scaledWhiteness) * 255);
+    },
+    $signature: 161
+  };
+  A._ColorFormatEnum0.prototype = {
+    toString$0(_) {
+      return this._color1$_name;
+    }
+  };
+  A.SpanColorFormat0.prototype = {};
+  A.Combinator0.prototype = {
+    _enumToString$0() {
+      return "Combinator." + this._name;
+    },
+    toString$0(_) {
+      return this._combinator0$_text;
+    }
+  };
+  A.ModifiableCssComment0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssComment$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    $isCssComment0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.compileAsync_closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.NodeCompileResult),
+        $async$returnValue, $async$self = this, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, result, t1, t2, t3, t4;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.options;
+              t2 = t1 == null;
+              t3 = t2 ? null : J.get$loadPaths$x(t1);
+              t4 = t2 ? null : J.get$quietDeps$x(t1);
+              if (t4 == null)
+                t4 = false;
+              t5 = A._parseOutputStyle0(t2 ? null : J.get$style$x(t1));
+              t6 = t2 ? null : J.get$verbose$x(t1);
+              if (t6 == null)
+                t6 = false;
+              t7 = t2 ? null : J.get$charset$x(t1);
+              if (t7 == null)
+                t7 = true;
+              t8 = t2 ? null : J.get$sourceMap$x(t1);
+              if (t8 == null)
+                t8 = false;
+              t9 = $async$self.logger;
+              if (t2)
+                t10 = null;
+              else {
+                t10 = J.get$importers$x(t1);
+                t10 = t10 == null ? null : J.map$1$1$ax(t10, new A.compileAsync__closure(), type$.AsyncImporter);
+              }
+              t11 = A._parseFunctions0(t2 ? null : J.get$functions$x(t1), true);
+              t12 = A._parseDeprecations(t9, t2 ? null : J.get$fatalDeprecations$x(t1), true);
+              t13 = A._parseDeprecations(t9, t2 ? null : J.get$silenceDeprecations$x(t1), false);
+              t14 = A._parseDeprecations(t9, t2 ? null : J.get$futureDeprecations$x(t1), false);
+              $async$goto = 3;
+              return A._asyncAwait(A.compileAsync0($async$self.path, t7, t12, t11, t14, A.AsyncImportCache$(t10, t3, t9, null), null, null, t9, null, t4, t13, t8, t5, null, true, t6), $async$call$0);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              t1 = t2 ? null : J.get$sourceMapIncludeSources$x(t1);
+              $async$returnValue = A._convertResult(result, t1 == null ? false : t1);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 206
+  };
+  A.compileAsync__closure.prototype = {
+    call$1(importer) {
+      return A._parseAsyncImporter(importer);
+    },
+    $signature: 201
+  };
+  A.compileStringAsync_closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.NodeCompileResult),
+        $async$returnValue, $async$self = this, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16, t17, result, t1, t2, t3, t4, t5, t6;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.options;
+              t2 = t1 == null;
+              t3 = A.parseSyntax(t2 ? null : J.get$syntax$x(t1));
+              t4 = t2 ? null : A.NullableExtension_andThen0(J.get$url$x(t1), A.utils1__jsToDartUrl$closure());
+              t5 = t2 ? null : J.get$loadPaths$x(t1);
+              t6 = t2 ? null : J.get$quietDeps$x(t1);
+              if (t6 == null)
+                t6 = false;
+              t7 = A._parseOutputStyle0(t2 ? null : J.get$style$x(t1));
+              t8 = t2 ? null : J.get$verbose$x(t1);
+              if (t8 == null)
+                t8 = false;
+              t9 = t2 ? null : J.get$charset$x(t1);
+              if (t9 == null)
+                t9 = true;
+              t10 = t2 ? null : J.get$sourceMap$x(t1);
+              if (t10 == null)
+                t10 = false;
+              t11 = $async$self.logger;
+              if (t2)
+                t12 = null;
+              else {
+                t12 = J.get$importers$x(t1);
+                t12 = t12 == null ? null : J.map$1$1$ax(t12, new A.compileStringAsync__closure(), type$.AsyncImporter);
+              }
+              t13 = t2 ? null : A.NullableExtension_andThen0(J.get$importer$x(t1), new A.compileStringAsync__closure0());
+              if (t13 == null)
+                t13 = (t2 ? null : J.get$url$x(t1)) == null ? new A.NoOpImporter0() : null;
+              t14 = A._parseFunctions0(t2 ? null : J.get$functions$x(t1), true);
+              t15 = A._parseDeprecations(t11, t2 ? null : J.get$fatalDeprecations$x(t1), true);
+              t16 = A._parseDeprecations(t11, t2 ? null : J.get$silenceDeprecations$x(t1), false);
+              t17 = A._parseDeprecations(t11, t2 ? null : J.get$futureDeprecations$x(t1), false);
+              $async$goto = 3;
+              return A._asyncAwait(A.compileStringAsync0($async$self.text, t9, t15, t14, t17, A.AsyncImportCache$(t12, t5, t11, null), t13, null, null, t11, null, t6, t16, t10, t7, t3, t4, true, t8), $async$call$0);
+            case 3:
+              // returning from await.
+              result = $async$result;
+              t1 = t2 ? null : J.get$sourceMapIncludeSources$x(t1);
+              $async$returnValue = A._convertResult(result, t1 == null ? false : t1);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 206
+  };
+  A.compileStringAsync__closure.prototype = {
+    call$1(importer) {
+      return A._parseAsyncImporter(importer);
+    },
+    $signature: 201
+  };
+  A.compileStringAsync__closure0.prototype = {
+    call$1(importer) {
+      return A._parseAsyncImporter(importer);
+    },
+    $signature: 396
+  };
+  A._wrapAsyncSassExceptions_closure.prototype = {
+    call$1(error) {
+      var t1;
+      if (error instanceof A.SassException0)
+        t1 = A.throwNodeException(error, this.ascii, this.color, null);
+      else
+        t1 = A.jsThrow(error == null ? type$.Object._as(error) : error);
+      return t1;
+    },
+    $signature: 397
+  };
+  A._parseFunctions_closure0.prototype = {
+    call$2(signature, callback) {
+      var callable,
+        t1 = this.result;
+      if (!this.asynch) {
+        callable = A._Cell$();
+        callable.__late_helper$_value = A.Callable_Callable$fromSignature(signature, new A._parseFunctions__closure2(callback, callable), true);
+        t1.push(callable._readLocal$0());
+      } else {
+        callable = A._Cell$();
+        callable.__late_helper$_value = A.AsyncCallable_AsyncCallable$fromSignature(signature, new A._parseFunctions__closure3(callback, callable), true);
+        t1.push(callable._readLocal$0());
+      }
+    },
+    $signature: 122
+  };
+  A._parseFunctions__closure2.prototype = {
+    call$1($arguments) {
+      var t1, t2,
+        _s42_ = string$.Invali,
+        result = A.wrapJSExceptions(new A._parseFunctions___closure6(this.callback, $arguments));
+      if (result instanceof A.Value0)
+        return A._simplifyValue(result);
+      t1 = result != null && result instanceof self.Promise;
+      t2 = this.callable;
+      if (t1)
+        throw A.wrapException(_s42_ + J.get$name$x(t2.readLocal$0()) + '":\nPromises may only be returned for sass.compileAsync() and sass.compileStringAsync().');
+      else
+        throw A.wrapException(_s42_ + J.get$name$x(t2.readLocal$0()) + '": ' + A.S(result) + " is not a sass.Value.");
+    },
+    $signature: 3
+  };
+  A._parseFunctions___closure6.prototype = {
+    call$0() {
+      return type$.Function._as(this.callback).call$1(A.toJSArray(this.$arguments));
+    },
+    $signature: 62
+  };
+  A._parseFunctions__closure3.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_parseFunctions__closure0($arguments);
+    },
+    $call$body$_parseFunctions__closure0($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, result;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              result = A.wrapJSExceptions(new A._parseFunctions___closure5($async$self.callback, $arguments));
+              $async$goto = result != null && result instanceof self.Promise ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(A.promiseToFuture(type$.Promise._as(result), type$.Object), $async$call$1);
+            case 5:
+              // returning from await.
+              result = $async$result;
+            case 4:
+              // join
+              if (result instanceof A.Value0) {
+                $async$returnValue = A._simplifyValue(result);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+              throw A.wrapException(string$.Invali + J.get$name$x($async$self.callable.readLocal$0()) + '": ' + A.S(result) + " is not a sass.Value.");
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 89
+  };
+  A._parseFunctions___closure5.prototype = {
+    call$0() {
+      return type$.Function._as(this.callback).call$1(A.toJSArray(this.$arguments));
+    },
+    $signature: 62
+  };
+  A._parseDeprecations_closure.prototype = {
+    call$0() {
+      return new A._SyncStarIterable(this.$call$body$_parseDeprecations_closure(), type$._SyncStarIterable_Deprecation);
+    },
+    $call$body$_parseDeprecations_closure() {
+      var $async$self = this;
+      return function() {
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, t2, t3, t4, item, t5, id, deprecation, version;
+        return function $async$call$0($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = J.get$iterator$ax($async$self.deprecations), t2 = type$.Deprecation_2, t3 = $async$self.supportVersions, t4 = $async$self.logger;
+              case 2:
+                // for condition
+                if (!t1.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 3;
+                  break;
+                }
+                item = t1.get$current(t1);
+                t5 = typeof item == "string";
+                id = t5 ? item : null;
+                $async$goto = t5 ? 4 : 5;
+                break;
+              case 4:
+                // then
+                deprecation = A.Deprecation_fromId0(id);
+                $async$goto = deprecation == null ? 6 : 8;
+                break;
+              case 6:
+                // then
+                t4.internalWarn$4$deprecation$span$trace('Invalid deprecation "' + A.S(id) + '".', null, null, null);
+                // goto join
+                $async$goto = 7;
+                break;
+              case 8:
+                // else
+                $async$goto = 9;
+                return $async$iterator._async$_current = deprecation, 1;
+              case 9:
+                // after yield
+              case 7:
+                // join
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 5:
+                // join
+                t5 = t2._is(item);
+                id = t5 ? J.get$id$x(item) : null;
+                $async$goto = t5 ? 10 : 11;
+                break;
+              case 10:
+                // then
+                deprecation = A.Deprecation_fromId0(id);
+                $async$goto = deprecation == null ? 12 : 14;
+                break;
+              case 12:
+                // then
+                t4.internalWarn$4$deprecation$span$trace('Invalid deprecation "' + A.S(id) + '".', null, null, null);
+                // goto join
+                $async$goto = 13;
+                break;
+              case 14:
+                // else
+                $async$goto = 15;
+                return $async$iterator._async$_current = deprecation, 1;
+              case 15:
+                // after yield
+              case 13:
+                // join
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 11:
+                // join
+                if (item instanceof A.Version) {
+                  t5 = t3;
+                  version = item;
+                } else {
+                  version = null;
+                  t5 = false;
+                }
+                $async$goto = t5 ? 16 : 17;
+                break;
+              case 16:
+                // then
+                $async$goto = 18;
+                return $async$iterator._yieldStar$1(A.Deprecation_forVersion0(version));
+              case 18:
+                // after yield
+              case 17:
+                // join
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 3:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    $signature: 399
+  };
+  A.nodePackageImporterClass_closure.prototype = {
+    call$0() {
+      return type$.JSClass._as(A.allowInteropCaptureThisNamed("sass.NodePackageImporter", new A.nodePackageImporterClass__closure()));
+    },
+    $signature: 13
+  };
+  A.nodePackageImporterClass__closure.prototype = {
+    call$2($self, entrypointDirectory) {
+      var directory, t1, filename, t2, _null = null,
+        _0_3 = A.entrypointFilename();
+      $label0$0: {
+        if (entrypointDirectory != null) {
+          directory = entrypointDirectory == null ? A._asString(entrypointDirectory) : entrypointDirectory;
+          t1 = directory;
+          break $label0$0;
+        }
+        if (_0_3 != null) {
+          filename = _0_3 == null ? A._asString(_0_3) : _0_3;
+          t1 = $.$get$context().dirname$1(filename);
+          break $label0$0;
+        }
+        t1 = A.throwExpression("The Node package importer cannot determine an entry point because `require.main.filename` is not defined. Please provide an `entryPointDirectory` to the `NodePackageImporter`.");
+      }
+      t2 = new A.NodePackageImporter0();
+      if (A.isBrowser())
+        A.throwExpression(string$.The_No);
+      t2._node_package$__NodePackageImporter__entryPointDirectory_F = A.absolute(t1, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+      return t2;
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 400
+  };
+  A._compileStylesheet_closure1.prototype = {
+    call$1(url) {
+      return url === "" ? A.Uri_Uri$dataFromString(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(this.stylesheet.span.file._decodedChars, 0, null), 0, null), B.C_Utf8Codec, null).get$_text() : this.importCache.sourceMapUrl$1(0, A.Uri_parse(url)).toString$0(0);
+    },
+    $signature: 5
+  };
+  A.CompileOptions.prototype = {};
+  A.CompileStringOptions.prototype = {};
+  A.NodeCompileResult.prototype = {};
+  A.CompileResult0.prototype = {};
+  A.Compiler.prototype = {};
+  A.AsyncCompiler.prototype = {
+    addCompilation$1(compilation) {
+      this.compilations.add$1(0, A.promiseToFuture0(compilation, type$.dynamic).catchError$1(new A.AsyncCompiler_addCompilation_closure()));
+    }
+  };
+  A.AsyncCompiler_addCompilation_closure.prototype = {
+    call$1(err) {
+    },
+    $signature: 54
+  };
+  A.compilerClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.Compiler", new A.compilerClass__closure()));
+      A.LinkedHashMap_LinkedHashMap$_literal(["compile", new A.compilerClass__closure0(), "compileString", new A.compilerClass__closure1(), "dispose", new A.compilerClass__closure2()], type$.String, type$.Function).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(new A.Compiler().constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.compilerClass__closure.prototype = {
+    call$1($self) {
+      return A.LinkedHashSet_LinkedHashSet$_literal([A.jsThrow(new self.Error("Compiler can not be directly constructed. Please use `sass.initCompiler()` instead."))], type$.Never);
+    },
+    $signature: 200
+  };
+  A.compilerClass__closure0.prototype = {
+    call$3($self, path, options) {
+      if ($self._disposed)
+        A.jsThrow(new self.Error("Compiler has already been disposed."));
+      return A.compile0(path, options);
+    },
+    call$2($self, path) {
+      return this.call$3($self, path, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 402
+  };
+  A.compilerClass__closure1.prototype = {
+    call$3($self, source, options) {
+      if ($self._disposed)
+        A.jsThrow(new self.Error("Compiler has already been disposed."));
+      return A.compileString0(source, options);
+    },
+    call$2($self, source) {
+      return this.call$3($self, source, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 403
+  };
+  A.compilerClass__closure2.prototype = {
+    call$1($self) {
+      $self._disposed = true;
+    },
+    $signature: 404
+  };
+  A.asyncCompilerClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.AsyncCompiler", new A.asyncCompilerClass__closure()));
+      A.LinkedHashMap_LinkedHashMap$_literal(["compileAsync", new A.asyncCompilerClass__closure0(), "compileStringAsync", new A.asyncCompilerClass__closure1(), "dispose", new A.asyncCompilerClass__closure2()], type$.String, type$.Function).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(new A.AsyncCompiler(new A.FutureGroup(new A._AsyncCompleter(new A._Future($.Zone__current, type$._Future_List_void), type$._AsyncCompleter_List_void), [], type$.FutureGroup_void)).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.asyncCompilerClass__closure.prototype = {
+    call$1($self) {
+      return A.LinkedHashSet_LinkedHashSet$_literal([A.jsThrow(new self.Error("AsyncCompiler can not be directly constructed. Please use `sass.initAsyncCompiler()` instead."))], type$.Never);
+    },
+    $signature: 200
+  };
+  A.asyncCompilerClass__closure0.prototype = {
+    call$3($self, path, options) {
+      var compilation;
+      if ($self._disposed)
+        A.jsThrow(new self.Error("Compiler has already been disposed."));
+      compilation = A.compileAsync1(path, options);
+      $self.addCompilation$1(compilation);
+      return compilation;
+    },
+    call$2($self, path) {
+      return this.call$3($self, path, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 405
+  };
+  A.asyncCompilerClass__closure1.prototype = {
+    call$3($self, source, options) {
+      var compilation;
+      if ($self._disposed)
+        A.jsThrow(new self.Error("Compiler has already been disposed."));
+      compilation = A.compileStringAsync1(source, options);
+      $self.addCompilation$1(compilation);
+      return compilation;
+    },
+    call$2($self, source) {
+      return this.call$3($self, source, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 406
+  };
+  A.asyncCompilerClass__closure2.prototype = {
+    call$1($self) {
+      $self._disposed = true;
+      return A.futureToPromise0(new A.asyncCompilerClass___closure($self).call$0());
+    },
+    $signature: 407
+  };
+  A.asyncCompilerClass___closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Null),
+        $async$self = this, t1;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = $async$self.self.compilations;
+              t1.close$0(0);
+              $async$goto = 2;
+              return A._asyncAwait(t1._future_group$_completer.future, $async$call$0);
+            case 2:
+              // returning from await.
+              // implicit return
+              return A._asyncReturn(null, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 2
+  };
+  A.initAsyncCompiler_closure.prototype = {
+    call$0() {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.AsyncCompiler),
+        $async$returnValue;
+      var $async$call$0 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              $async$returnValue = new A.AsyncCompiler(new A.FutureGroup(new A._AsyncCompleter(new A._Future($.Zone__current, type$._Future_List_void), type$._AsyncCompleter_List_void), [], type$.FutureGroup_void));
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$0, $async$completer);
+    },
+    $signature: 408
+  };
+  A.ComplexSassNumber0.prototype = {
+    get$numeratorUnits(_) {
+      return this._complex0$_numeratorUnits;
+    },
+    get$denominatorUnits(_) {
+      return this._complex0$_denominatorUnits;
+    },
+    get$hasUnits() {
+      return true;
+    },
+    get$hasComplexUnits() {
+      return true;
+    },
+    hasUnit$1(unit) {
+      return false;
+    },
+    compatibleWithUnit$1(unit) {
+      return false;
+    },
+    hasPossiblyCompatibleUnits$1(other) {
+      throw A.wrapException(A.UnimplementedError$(string$.Comple));
+    },
+    withValue$1(value) {
+      return new A.ComplexSassNumber0(this._complex0$_numeratorUnits, this._complex0$_denominatorUnits, value, null);
+    },
+    withSlash$2(numerator, denominator) {
+      return new A.ComplexSassNumber0(this._complex0$_numeratorUnits, this._complex0$_denominatorUnits, this._number1$_value, new A._Record_2(numerator, denominator));
+    }
+  };
+  A.ComplexSelector0.prototype = {
+    get$specificity() {
+      var result, _this = this,
+        value = _this._complex$__ComplexSelector_specificity_FI;
+      if (value === $) {
+        result = B.JSArray_methods.fold$2(_this.components, 0, new A.ComplexSelector_specificity_closure0());
+        _this._complex$__ComplexSelector_specificity_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this._complex$__ComplexSelector_specificity_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$singleCompound() {
+      var _0_0, _0_4, t1, selector, _null = null;
+      if (this.leadingCombinators.length !== 0)
+        return _null;
+      _0_0 = this.components;
+      $label0$0: {
+        if (_0_0.length === 1) {
+          _0_4 = _0_0[0];
+          t1 = _0_4;
+          selector = t1.selector;
+          t1 = _0_4.combinators.length <= 0;
+        } else {
+          selector = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = selector;
+          break $label0$0;
+        }
+        t1 = _null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitComplexSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    isSuperselector$1(other) {
+      return this.leadingCombinators.length === 0 && other.leadingCombinators.length === 0 && A.complexIsSuperselector0(this.components, other.components);
+    },
+    withAdditionalCombinators$1(combinators) {
+      var _0_0, _0_1, t1, initial, last, _this = this;
+      if (combinators.length === 0)
+        return _this;
+      _0_0 = _this.components;
+      $label0$0: {
+        _0_1 = _0_0.length;
+        if (_0_1 >= 1) {
+          t1 = _0_1 - 1;
+          initial = B.JSArray_methods.sublist$2(_0_0, 0, t1);
+          last = _0_0[t1];
+          t1 = A.List_List$of(initial, true, type$.ComplexSelectorComponent_2);
+          t1.push(last.withAdditionalCombinators$1(combinators));
+          t1 = A.ComplexSelector$0(_this.leadingCombinators, t1, _this.span, _this.lineBreak);
+          break $label0$0;
+        }
+        if (_0_1 <= 0) {
+          t1 = A.List_List$of(_this.leadingCombinators, true, type$.CssValue_Combinator_2);
+          B.JSArray_methods.addAll$1(t1, combinators);
+          t1 = A.ComplexSelector$0(t1, B.List_empty13, _this.span, _this.lineBreak);
+          break $label0$0;
+        }
+        throw A.wrapException(A.ReachabilityError$(string$.None_o));
+      }
+      return t1;
+    },
+    concatenate$3$forceLineBreak(child, span, forceLineBreak) {
+      var t2, _0_1, initial, last, _this = this,
+        t1 = child.leadingCombinators,
+        _0_0 = _this.components;
+      if (t1.length === 0) {
+        t1 = A.List_List$of(_0_0, true, type$.ComplexSelectorComponent_2);
+        B.JSArray_methods.addAll$1(t1, child.components);
+        t2 = _this.lineBreak || child.lineBreak || forceLineBreak;
+        return A.ComplexSelector$0(_this.leadingCombinators, t1, span, t2);
+      } else {
+        _0_1 = _0_0.length;
+        if (_0_1 >= 1) {
+          t2 = _0_1 - 1;
+          initial = B.JSArray_methods.sublist$2(_0_0, 0, t2);
+          last = _0_0[t2];
+          t2 = A.List_List$of(initial, true, type$.ComplexSelectorComponent_2);
+          t2.push(last.withAdditionalCombinators$1(t1));
+          B.JSArray_methods.addAll$1(t2, child.components);
+          t1 = _this.lineBreak || child.lineBreak || forceLineBreak;
+          return A.ComplexSelector$0(_this.leadingCombinators, t2, span, t1);
+        } else {
+          t2 = A.List_List$of(_this.leadingCombinators, true, type$.CssValue_Combinator_2);
+          B.JSArray_methods.addAll$1(t2, t1);
+          t1 = _this.lineBreak || child.lineBreak || forceLineBreak;
+          return A.ComplexSelector$0(t2, child.components, span, t1);
+        }
+      }
+    },
+    concatenate$2(child, span) {
+      return this.concatenate$3$forceLineBreak(child, span, false);
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.leadingCombinators) ^ B.C_ListEquality0.hash$1(this.components);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ComplexSelector0 && B.C_ListEquality.equals$2(0, this.leadingCombinators, other.leadingCombinators) && B.C_ListEquality.equals$2(0, this.components, other.components);
+    }
+  };
+  A.ComplexSelector_specificity_closure0.prototype = {
+    call$2(sum, component) {
+      return sum + component.selector.get$specificity();
+    },
+    $signature: 409
+  };
+  A.ComplexSelectorComponent0.prototype = {
+    withAdditionalCombinators$1(combinators) {
+      var t1, t2, _this = this;
+      if (combinators.length === 0)
+        t1 = _this;
+      else {
+        t1 = type$.CssValue_Combinator_2;
+        t2 = A.List_List$of(_this.combinators, true, t1);
+        B.JSArray_methods.addAll$1(t2, combinators);
+        t1 = new A.ComplexSelectorComponent0(_this.selector, A.List_List$unmodifiable(t2, t1), _this.span);
+      }
+      return t1;
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.selector.components) ^ B.C_ListEquality0.hash$1(this.combinators);
+    },
+    $eq(_, other) {
+      var t1;
+      if (other == null)
+        return false;
+      if (other instanceof A.ComplexSelectorComponent0) {
+        t1 = B.C_ListEquality.equals$2(0, this.selector.components, other.selector.components);
+        t1 = t1 && B.C_ListEquality.equals$2(0, this.combinators, other.combinators);
+      } else
+        t1 = false;
+      return t1;
+    },
+    toString$0(_) {
+      var t1 = this.combinators;
+      return A.serializeSelector0(this.selector, true) + new A.MappedListIterable(t1, new A.ComplexSelectorComponent_toString_closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$1(0, "");
+    }
+  };
+  A.ComplexSelectorComponent_toString_closure0.prototype = {
+    call$1(combinator) {
+      return " " + combinator.toString$0(0);
+    },
+    $signature: 410
+  };
+  A.CompoundSelector0.prototype = {
+    get$specificity() {
+      var result, _this = this,
+        value = _this._compound$__CompoundSelector_specificity_FI;
+      if (value === $) {
+        result = B.JSArray_methods.fold$2(_this.components, 0, new A.CompoundSelector_specificity_closure0());
+        _this._compound$__CompoundSelector_specificity_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this._compound$__CompoundSelector_specificity_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitCompoundSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.components);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CompoundSelector0 && B.C_ListEquality.equals$2(0, this.components, other.components);
+    }
+  };
+  A.CompoundSelector_specificity_closure0.prototype = {
+    call$2(sum, component) {
+      return sum + component.get$specificity();
+    },
+    $signature: 411
+  };
+  A.Configuration0.prototype = {
+    throughForward$1($forward) {
+      var _0_0, _1_0, _2_0, t1, hiddenVariables,
+        newValues = this._configuration0$_values;
+      if (newValues.get$isEmpty(newValues))
+        return B.Configuration_Map_empty_null0;
+      _0_0 = $forward.prefix;
+      if (_0_0 != null)
+        newValues = new A.UnprefixedMapView0(newValues, _0_0, type$.UnprefixedMapView_ConfiguredValue_2);
+      _1_0 = $forward.shownVariables;
+      if (_1_0 != null)
+        newValues = new A.LimitedMapView0(newValues, _1_0._base.intersection$1(new A.MapKeySet(newValues, type$.MapKeySet_nullable_Object)), type$.LimitedMapView_String_ConfiguredValue_2);
+      else {
+        _2_0 = $forward.hiddenVariables;
+        if (_2_0 != null) {
+          t1 = _2_0._base.get$isNotEmpty(0);
+          hiddenVariables = _2_0;
+        } else {
+          hiddenVariables = null;
+          t1 = false;
+        }
+        if (t1)
+          newValues = A.LimitedMapView$blocklist0(newValues, hiddenVariables, type$.String, type$.ConfiguredValue_2);
+      }
+      return this._configuration0$_withValues$1(newValues);
+    },
+    _configuration0$_withValues$1(values) {
+      var t1 = this._configuration0$__originalConfiguration;
+      return new A.Configuration0(values, t1 == null ? this : t1);
+    },
+    toString$0(_) {
+      var t2, t3,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = A.MapExtensions_get_pairs0(new A.UnmodifiableMapView(this._configuration0$_values, type$.UnmodifiableMapView_String_ConfiguredValue_2), type$.String, type$.ConfiguredValue_2), t2 = t2.get$iterator(t2); t2.moveNext$0();) {
+        t3 = t2.get$current(t2);
+        t1.push("$" + t3._0 + ": " + t3._1.toString$0(0));
+      }
+      return "(" + B.JSArray_methods.join$1(t1, ",") + ")";
+    }
+  };
+  A.ExplicitConfiguration0.prototype = {
+    _configuration0$_withValues$1(values) {
+      var t1 = this._configuration0$__originalConfiguration;
+      if (t1 == null)
+        t1 = this;
+      return new A.ExplicitConfiguration0(this.nodeWithSpan, values, t1);
+    }
+  };
+  A.ConfiguredValue0.prototype = {
+    toString$0(_) {
+      return A.serializeValue0(this.value, true, true);
+    }
+  };
+  A.ConfiguredVariable0.prototype = {
+    toString$0(_) {
+      var t1 = this.expression.toString$0(0),
+        t2 = this.isGuarded ? " !default" : "";
+      return "$" + this.name + ": " + t1 + t2;
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ContentBlock0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitContentBlock$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2,
+        t1 = this.$arguments;
+      t1 = t1.$arguments.length === 0 && t1.restArgument == null ? "" : " using (" + t1.toString$0(0) + ")";
+      t2 = this.children;
+      return t1 + (" {" + (t2 && B.JSArray_methods).join$1(t2, " ") + "}");
+    }
+  };
+  A.ContentRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitContentRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.$arguments;
+      return t1.get$isEmpty(0) ? "@content;" : "@content(" + t1.toString$0(0) + ");";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._disallowedFunctionNames_closure0.prototype = {
+    call$1($function) {
+      return $function.name;
+    },
+    $signature: 412
+  };
+  A.CssParser0.prototype = {
+    get$plainCss() {
+      return true;
+    },
+    silentComment$0() {
+      var t1, t2, _this = this;
+      if (_this._stylesheet0$_inExpression)
+        return false;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      _this.super$Parser$silentComment0();
+      _this.error$2(0, string$.Silent, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    atRule$2$root(child, root) {
+      var $name, _0_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(64);
+      $name = _this.interpolatedIdentifier$0();
+      _this.whitespace$0();
+      _0_0 = $name.get$asPlain();
+      $label0$0: {
+        if ("at-root" === _0_0 || "content" === _0_0 || "debug" === _0_0 || "each" === _0_0 || "error" === _0_0 || "extend" === _0_0 || "for" === _0_0 || "function" === _0_0 || "if" === _0_0 || "include" === _0_0 || "mixin" === _0_0 || "return" === _0_0 || "warn" === _0_0 || "while" === _0_0)
+          _this._css$_forbiddenAtRoot$1(start);
+        if ("import" === _0_0) {
+          t1 = _this._css$_cssImportRule$1(start);
+          break $label0$0;
+        }
+        if ("media" === _0_0) {
+          t1 = _this.mediaRule$1(start);
+          break $label0$0;
+        }
+        if ("-moz-document" === _0_0) {
+          t1 = _this.mozDocumentRule$2(start, $name);
+          break $label0$0;
+        }
+        if ("supports" === _0_0) {
+          t1 = _this.supportsRule$1(start);
+          break $label0$0;
+        }
+        t1 = _this.unknownAtRule$2(start, $name);
+        break $label0$0;
+      }
+      return t1;
+    },
+    _css$_forbiddenAtRoot$1(start) {
+      this.almostAnyValue$0();
+      this.error$2(0, "This at-rule isn't allowed in plain CSS.", this.scanner.spanFrom$1(start));
+    },
+    _css$_cssImportRule$1(start) {
+      var t2, urlSpan, modifiers, _this = this,
+        t1 = _this.scanner,
+        urlStart = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (117 === _0_0 || 85 === _0_0) {
+          t2 = _this.dynamicUrl$0();
+          break $label0$0;
+        }
+        t2 = new A.StringExpression0(_this.interpolatedString$0().asInterpolation$1$static(true), false);
+        break $label0$0;
+      }
+      urlSpan = t1.spanFrom$1(urlStart);
+      _this.whitespace$0();
+      modifiers = _this.tryImportModifiers$0();
+      _this.expectStatementSeparator$1("@import rule");
+      t2 = A._setArrayType([new A.StaticImport0(A.Interpolation$0(A._setArrayType([t2], type$.JSArray_Object), urlSpan), modifiers, t1.spanFrom$1(urlStart))], type$.JSArray_Import_2);
+      t1 = t1.spanFrom$1(start);
+      return new A.ImportRule0(A.List_List$unmodifiable(t2, type$.Import_2), t1);
+    },
+    parentheses$0() {
+      var expression,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expectChar$1(40);
+      this.whitespace$0();
+      expression = this.expressionUntilComma$0();
+      t1.expectChar$1(41);
+      return new A.ParenthesizedExpression0(expression, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    identifierLike$0() {
+      var t2, allowEmptySecondArg, $arguments, t3, t4, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        identifier = _this.interpolatedIdentifier$0(),
+        plain = identifier.get$asPlain(),
+        lower = plain.toLowerCase(),
+        _0_0 = _this.trySpecialFunction$2(lower, start);
+      if (_0_0 != null)
+        return _0_0;
+      t2 = t1._string_scanner$_position;
+      if (t1.scanChar$1(46))
+        return _this.namespacedExpression$2(plain, start);
+      if (!t1.scanChar$1(40))
+        return new A.StringExpression0(identifier, false);
+      allowEmptySecondArg = lower === "var";
+      $arguments = A._setArrayType([], type$.JSArray_Expression_2);
+      if (!t1.scanChar$1(41)) {
+        do {
+          _this.whitespace$0();
+          if (allowEmptySecondArg && $arguments.length === 1 && t1.peekChar$0() === 41) {
+            t3 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+            t4 = t3.offset;
+            t4 = A._FileSpan$(t3.file, t4, t4);
+            $arguments.push(new A.StringExpression0(A.Interpolation$0(A._setArrayType([""], type$.JSArray_Object), t4), false));
+            break;
+          }
+          $arguments.push(_this.expressionUntilComma$1$singleEquals(true));
+          _this.whitespace$0();
+        } while (t1.scanChar$1(44));
+        t1.expectChar$1(41);
+      }
+      if ($.$get$_disallowedFunctionNames0().contains$1(0, plain))
+        _this.error$2(0, string$.This_f, t1.spanFrom$1(start));
+      t2 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      t3 = type$.Expression_2;
+      t4 = A.List_List$unmodifiable($arguments, t3);
+      t3 = A.ConstantMap_ConstantMap$from(B.Map_empty14, type$.String, t3);
+      t1 = t1.spanFrom$1(start);
+      return new A.FunctionExpression0(null, A.stringReplaceAllUnchecked(plain, "_", "-"), plain, new A.ArgumentInvocation0(t4, t3, null, null, t2), t1);
+    },
+    namespacedExpression$2(namespace, start) {
+      var expression = this.super$StylesheetParser$namespacedExpression0(namespace, start);
+      this.error$2(0, string$.Modulen, expression.get$span(expression));
+    }
+  };
+  A.DebugRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitDebugRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@debug " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssDeclaration0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssDeclaration$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.name.toString$0(0) + ": " + this.value.toString$0(0) + ";";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Declaration0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitDeclaration$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t3, _0_0,
+        buffer = new A.StringBuffer(""),
+        t1 = this.name,
+        t2 = "" + t1.toString$0(0);
+      buffer._contents = t2;
+      t2 = buffer._contents = t2 + A.Primitives_stringFromCharCode(58);
+      t3 = this.value;
+      if (t3 != null) {
+        t1 = !B.JSString_methods.startsWith$1(t1.get$initialPlain(), "--") ? buffer._contents = t2 + A.Primitives_stringFromCharCode(32) : t2;
+        buffer._contents = t1 + t3.toString$0(0);
+      }
+      _0_0 = this.children;
+      if (_0_0 != null)
+        return buffer.toString$0(0) + " {" + B.JSArray_methods.join$1(_0_0, " ") + "}";
+      else
+        return buffer.toString$0(0) + ";";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsDeclaration0.prototype = {
+    get$isCustomProperty() {
+      var t1,
+        _0_0 = this.name;
+      $label0$0: {
+        if (_0_0 instanceof A.StringExpression0 && !_0_0.hasQuotes) {
+          t1 = B.JSString_methods.startsWith$1(_0_0.text.get$initialPlain(), "--");
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    toString$0(_) {
+      return "(" + this.name.toString$0(0) + ": " + this.value.toString$0(0) + ")";
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Deprecation0.prototype = {
+    _enumToString$0() {
+      return "Deprecation." + this._name;
+    },
+    get$deprecatedIn(_) {
+      return A.NullableExtension_andThen0(this._deprecation$_deprecatedIn, A.version_Version___parse_tearOff$closure());
+    },
+    get$obsoleteIn(_) {
+      return null;
+    },
+    toString$0(_) {
+      return this.id;
+    }
+  };
+  A.Deprecation_fromId_closure0.prototype = {
+    call$1(deprecation) {
+      return deprecation.id === this.id;
+    },
+    $signature: 413
+  };
+  A.DeprecationProcessingLogger0.prototype = {
+    DeprecationProcessingLogger$5$fatalDeprecations$futureDeprecations$limitRepetition$silenceDeprecations0(_inner, fatalDeprecations, futureDeprecations, limitRepetition, silenceDeprecations) {
+      var t1, t2, t3, t4, t5, t6, _1_7, _this = this, _null = null;
+      for (t1 = _this.fatalDeprecations, t1 = A._LinkedHashSetIterator$(t1, t1._modifications, A._instanceType(t1)._precomputed1), t2 = _this.silenceDeprecations, t3 = t1.$ti._precomputed1, t4 = _this.futureDeprecations; t1.moveNext$0();) {
+        t5 = t1._collection$_current;
+        if (t5 == null)
+          t5 = t3._as(t5);
+        if (t5.isFuture && !t4.contains$1(0, t5)) {
+          t5 = t5.toString$0(0);
+          _this.internalWarn$4$deprecation$span$trace("Future " + t5 + string$.x20deprex20m, _null, _null, _null);
+          continue;
+        }
+        t6 = t2.contains$1(0, t5);
+        if (t6) {
+          t5 = t5.toString$0(0);
+          _this.internalWarn$4$deprecation$span$trace("Ignoring setting to silence " + t5 + string$.x20deprex2c, _null, _null, _null);
+          continue;
+        }
+      }
+      for (t1 = A._LinkedHashSetIterator$(t2, t2._modifications, A._instanceType(t2)._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (B.Deprecation_oty === t3) {
+          _this.internalWarn$4$deprecation$span$trace(string$.User_a, _null, _null, _null);
+          continue;
+        }
+        _1_7 = t3.isFuture;
+        if (_1_7 && t4.contains$1(0, t3)) {
+          t3 = t3.toString$0(0);
+          _this.internalWarn$4$deprecation$span$trace("Conflicting options for future " + t3 + " deprecation cancel each other out.", _null, _null, _null);
+          continue;
+        }
+        if (_1_7) {
+          t3 = t3.toString$0(0);
+          _this.internalWarn$4$deprecation$span$trace("Future " + t3 + string$.x20deprex20i, _null, _null, _null);
+          continue;
+        }
+      }
+      for (t1 = A._LinkedHashSetIterator$(t4, t4._modifications, A._instanceType(t4)._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        if (!t3.isFuture) {
+          t3 = t3.toString$0(0);
+          _this.internalWarn$4$deprecation$span$trace(t3 + string$.x20is_noaf, _null, _null, _null);
+        }
+      }
+    },
+    internalWarn$4$deprecation$span$trace(message, deprecation, span, trace) {
+      if (deprecation != null)
+        this._deprecation_processing$_handleDeprecation$4$span$trace(deprecation, message, span, trace);
+      else
+        this._deprecation_processing$_inner.warn$3$span$trace(0, message, span, trace);
+    },
+    _deprecation_processing$_handleDeprecation$4$span$trace(deprecation, message, span, trace) {
+      var _0_3_isSet, span0, t1, _0_3, t2, count, _1_0, _this = this, _null = null;
+      if (deprecation.isFuture && !_this.futureDeprecations.contains$1(0, deprecation))
+        return;
+      if (_this.fatalDeprecations.contains$1(0, deprecation)) {
+        message += string$.x0a_This + deprecation.toString$0(0) + string$.x20deprex20t;
+        $label0$0: {
+          _0_3_isSet = span != null;
+          if (_0_3_isSet) {
+            span0 = span == null ? type$.FileSpan._as(span) : span;
+            t1 = trace != null;
+            _0_3 = trace;
+          } else {
+            span0 = _null;
+            _0_3 = span0;
+            t1 = false;
+          }
+          if (t1) {
+            if (_0_3_isSet)
+              trace = _0_3;
+            t1 = A.SassRuntimeException$0(message, span0, trace == null ? type$.Trace._as(trace) : trace, _null);
+            break $label0$0;
+          }
+          if (span != null)
+            t1 = (_0_3_isSet ? _0_3 : trace) == null;
+          else {
+            span = _null;
+            t1 = false;
+          }
+          if (t1) {
+            t1 = A.SassException$0(message, span, _null);
+            break $label0$0;
+          }
+          t1 = A.SassScriptException$0(message, _null);
+          break $label0$0;
+        }
+        throw A.wrapException(t1);
+      }
+      if (_this.silenceDeprecations.contains$1(0, deprecation))
+        return;
+      if (_this.limitRepetition) {
+        t1 = _this._deprecation_processing$_warningCounts;
+        t2 = t1.$index(0, deprecation);
+        count = (t2 == null ? 0 : t2) + 1;
+        t1.$indexSet(0, deprecation, count);
+        if (count > 5)
+          return;
+      }
+      _1_0 = _this._deprecation_processing$_inner;
+      if (_1_0 instanceof A.LoggerWithDeprecationType)
+        _1_0.internalWarn$4$deprecation$span$trace(message, deprecation, span, trace);
+      else
+        _1_0.warn$4$deprecation$span$trace(0, message, true, span, trace);
+    },
+    debug$2(_, message, span) {
+      return this._deprecation_processing$_inner.debug$2(0, message, span);
+    },
+    summarize$1$js(js) {
+      var t1 = this._deprecation_processing$_warningCounts.get$values(0),
+        t2 = A._instanceType(t1),
+        total = A.IterableIntegerExtension_get_sum(new A.MappedIterable(new A.WhereIterable(t1, new A.DeprecationProcessingLogger_summarize_closure1(), t2._eval$1("WhereIterable<Iterable.E>")), new A.DeprecationProcessingLogger_summarize_closure2(), t2._eval$1("MappedIterable<Iterable.E,int>")));
+      if (total > 0) {
+        t1 = js ? "" : string$.x0aRun_i;
+        this._deprecation_processing$_inner.warn$1(0, "" + total + string$.x20repet + t1);
+      }
+    }
+  };
+  A.DeprecationProcessingLogger_summarize_closure1.prototype = {
+    call$1(count) {
+      return count > 5;
+    },
+    $signature: 45
+  };
+  A.DeprecationProcessingLogger_summarize_closure2.prototype = {
+    call$1(count) {
+      return count - 5;
+    },
+    $signature: 151
+  };
+  A.Deprecation1.prototype = {};
+  A.deprecations_closure.prototype = {
+    call$0() {
+      var t1, _0_8_isSet, _0_8,
+        _0_0 = this.deprecation;
+      $label0$0: {
+        if (_0_0.isFuture) {
+          t1 = "future";
+          break $label0$0;
+        }
+        _0_8_isSet = A.NullableExtension_andThen0(_0_0._deprecation$_deprecatedIn, A.version_Version___parse_tearOff$closure()) == null;
+        if (_0_8_isSet) {
+          _0_8 = _0_0.get$obsoleteIn(0) == null;
+          t1 = _0_8;
+        } else {
+          _0_8 = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = "user";
+          break $label0$0;
+        }
+        if (_0_8_isSet ? _0_8 : _0_0.get$obsoleteIn(0) == null) {
+          t1 = "active";
+          break $label0$0;
+        }
+        t1 = "obsolete";
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 25
+  };
+  A.versionClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.Version", new A.versionClass__closure()));
+      jsClass.parse = A.allowInteropNamed("parse", new A.versionClass__closure0());
+      A.JSClassExtension_injectSuperclass(t1._as(A.Version_Version(0, 0, 0, null).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.versionClass__closure.prototype = {
+    call$4($self, major, minor, patch) {
+      return A.Version_Version(major, minor, patch, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 4,
+    $signature: 414
+  };
+  A.versionClass__closure0.prototype = {
+    call$1(version) {
+      var v = A.Version_Version$parse(version);
+      if (v.preRelease.length !== 0 || v.build.length !== 0)
+        throw A.wrapException(A.FormatException$("Build identifiers and prerelease versions not supported.", null, null));
+      return v;
+    },
+    $signature: 199
+  };
+  A.DynamicImport0.prototype = {
+    toString$0(_) {
+      return A.StringExpression_quoteText0(this.urlString);
+    },
+    $isImport0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.EachRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitEachRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.variables,
+        t2 = this.children;
+      return "@each " + new A.MappedListIterable(t1, new A.EachRule_toString_closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$1(0, ", ") + " in " + this.list.toString$0(0) + " {" + (t2 && B.JSArray_methods).join$1(t2, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.EachRule_toString_closure0.prototype = {
+    call$1(variable) {
+      return "$" + variable;
+    },
+    $signature: 5
+  };
+  A.EmptyExtensionStore0.prototype = {
+    get$_extension_store$_extensions() {
+      return A.throwExpression(A.NoSuchMethodError_NoSuchMethodError$withInvocation(this, A.JSInvocationMirror$(B.Symbol__extensions, "get$_empty_extension_store0$_extensions", 1, [], [], 0)));
+    },
+    get$_extension_store$_sourceSpecificity() {
+      return A.throwExpression(A.NoSuchMethodError_NoSuchMethodError$withInvocation(this, A.JSInvocationMirror$(B.Symbol__sourceSpecificity, "get$_empty_extension_store0$_sourceSpecificity", 1, [], [], 0)));
+    },
+    get$isEmpty(_) {
+      return true;
+    },
+    get$simpleSelectors() {
+      return B.C_EmptyUnmodifiableSet0;
+    },
+    extensionsWhereTarget$1(callback) {
+      return B.List_empty17;
+    },
+    addSelector$2(selector, mediaContext) {
+      throw A.wrapException(A.UnsupportedError$("addSelector() can't be called for a const ExtensionStore."));
+    },
+    addExtension$4(extender, target, extend, mediaContext) {
+      throw A.wrapException(A.UnsupportedError$("addExtension() can't be called for a const ExtensionStore."));
+    },
+    addExtensions$1(extenders) {
+      throw A.wrapException(A.UnsupportedError$(string$.addExt));
+    },
+    clone$0() {
+      return B.Record2_EmptyExtensionStore_Map_empty0;
+    },
+    $isExtensionStore0: 1
+  };
+  A.Environment0.prototype = {
+    closure$0() {
+      var t4, t5, t6, _this = this,
+        t1 = _this._environment0$_forwardedModules,
+        t2 = _this._environment0$_nestedForwardedModules,
+        t3 = _this._environment0$_variables;
+      t3 = A._setArrayType(t3.slice(0), A._arrayInstanceType(t3));
+      t4 = _this._environment0$_variableNodes;
+      t4 = A._setArrayType(t4.slice(0), A._arrayInstanceType(t4));
+      t5 = _this._environment0$_functions;
+      t5 = A._setArrayType(t5.slice(0), A._arrayInstanceType(t5));
+      t6 = _this._environment0$_mixins;
+      t6 = A._setArrayType(t6.slice(0), A._arrayInstanceType(t6));
+      return A.Environment$_0(_this._environment0$_modules, _this._environment0$_namespaceNodes, _this._environment0$_globalModules, _this._environment0$_importedModules, t1, t2, _this._environment0$_allModules, t3, t4, t5, t6, _this._environment0$_content);
+    },
+    forwardModule$2(module, rule) {
+      var view, t1, t2, _this = this,
+        forwardedModules = _this._environment0$_forwardedModules;
+      if (forwardedModules == null)
+        forwardedModules = _this._environment0$_forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_Callable_2, type$.AstNode_2);
+      view = A.ForwardedModuleView_ifNecessary0(module, rule, type$.Callable_2);
+      for (t1 = A.LinkedHashMapKeyIterator$(forwardedModules, forwardedModules.__js_helper$_modifications); t1.moveNext$0();) {
+        t2 = t1.__js_helper$_current;
+        _this._environment0$_assertNoConflicts$5(view.get$variables(), t2.get$variables(), view, t2, "variable");
+        _this._environment0$_assertNoConflicts$5(view.get$functions(view), t2.get$functions(t2), view, t2, "function");
+        _this._environment0$_assertNoConflicts$5(view.get$mixins(), t2.get$mixins(), view, t2, "mixin");
+      }
+      _this._environment0$_allModules.push(module);
+      forwardedModules.$indexSet(0, view, rule);
+    },
+    _environment0$_assertNoConflicts$5(newMembers, oldMembers, newModule, oldModule, type) {
+      var larger, smaller, t1, t2, t3, t4, $name, small, large, span;
+      if (newMembers.get$length(newMembers) < oldMembers.get$length(oldMembers)) {
+        larger = oldMembers;
+        smaller = newMembers;
+      } else {
+        larger = newMembers;
+        smaller = oldMembers;
+      }
+      for (t1 = type$.String, t2 = A.MapExtensions_get_pairs0(smaller, t1, type$.Object), t2 = t2.get$iterator(t2), t3 = type === "variable"; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        $name = t4._0;
+        small = t4._1;
+        large = larger.$index(0, $name);
+        if (large == null)
+          continue;
+        if (t3 ? newModule.variableIdentity$1($name) === oldModule.variableIdentity$1($name) : J.$eq$(large, small))
+          continue;
+        if (t3)
+          $name = "$" + $name;
+        t2 = this._environment0$_forwardedModules;
+        if (t2 == null)
+          span = null;
+        else {
+          t2 = t2.$index(0, oldModule);
+          span = t2 == null ? null : J.get$span$z(t2);
+        }
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, t1);
+        if (span != null)
+          t2.$indexSet(0, span, "original @forward");
+        throw A.wrapException(A.MultiSpanSassScriptException$0("Two forwarded modules both define a " + type + " named " + $name + ".", "new @forward", t2));
+      }
+    },
+    importForwards$1(module) {
+      var forwardedModules, t1, t2, t3, t4, node, t5, t6, t7, t8, t9, t10, _i, t11, shadowed, _length, _list, _this = this,
+        forwarded = module._environment0$_environment._environment0$_forwardedModules;
+      if (forwarded == null)
+        return;
+      forwardedModules = _this._environment0$_forwardedModules;
+      if (forwardedModules != null) {
+        t1 = type$.Module_Callable_2;
+        t2 = type$.AstNode_2;
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t1 = A.MapExtensions_get_pairs0(forwarded, t1, t2), t1 = t1.get$iterator(t1), t2 = _this._environment0$_globalModules; t1.moveNext$0();) {
+          t4 = t1.get$current(t1);
+          module = t4._0;
+          node = t4._1;
+          if (!forwardedModules.containsKey$1(module) || !t2.containsKey$1(module))
+            t3.$indexSet(0, module, node);
+        }
+        forwarded = t3;
+      } else
+        forwardedModules = _this._environment0$_forwardedModules = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_Callable_2, type$.AstNode_2);
+      t1 = type$.String;
+      t2 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t3 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t3.moveNext$0();)
+        for (t4 = t3.__js_helper$_current.get$variables(), t4 = J.get$iterator$ax(t4.get$keys(t4)); t4.moveNext$0();)
+          t2.add$1(0, t4.get$current(t4));
+      t3 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();) {
+        t5 = t4.__js_helper$_current;
+        for (t5 = t5.get$functions(t5), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t3.add$1(0, t5.get$current(t5));
+      }
+      t1 = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      for (t4 = A.LinkedHashMapKeyIterator$(forwarded, forwarded.__js_helper$_modifications); t4.moveNext$0();)
+        for (t5 = t4.__js_helper$_current.get$mixins(), t5 = J.get$iterator$ax(t5.get$keys(t5)); t5.moveNext$0();)
+          t1.add$1(0, t5.get$current(t5));
+      t4 = _this._environment0$_variables;
+      t5 = t4.length;
+      if (t5 === 1) {
+        for (t5 = _this._environment0$_importedModules, t6 = type$.Module_Callable_2, t7 = type$.AstNode_2, t8 = A.MapExtensions_get_pairs0(t5, t6, t7).toList$0(0), t9 = t8.length, t10 = type$.Callable_2, _i = 0; _i < t8.length; t8.length === t9 || (0, A.throwConcurrentModificationError)(t8), ++_i) {
+          t11 = t8[_i];
+          module = t11._0;
+          node = t11._1;
+          shadowed = A.ShadowedModuleView_ifNecessary0(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            t5.remove$1(0, module);
+            t11 = shadowed.variables;
+            if (t11.get$isEmpty(t11)) {
+              t11 = shadowed.functions;
+              if (t11.get$isEmpty(t11)) {
+                t11 = shadowed.mixins;
+                if (t11.get$isEmpty(t11)) {
+                  t11 = shadowed._shadowed_view0$_inner;
+                  t11 = t11.get$css(t11);
+                  t11 = J.get$isEmpty$asx(t11.get$children(t11));
+                } else
+                  t11 = false;
+              } else
+                t11 = false;
+            } else
+              t11 = false;
+            if (!t11)
+              t5.$indexSet(0, shadowed, node);
+          }
+        }
+        for (t6 = A.MapExtensions_get_pairs0(forwardedModules, t6, t7).toList$0(0), t7 = t6.length, _i = 0; _i < t6.length; t6.length === t7 || (0, A.throwConcurrentModificationError)(t6), ++_i) {
+          t8 = t6[_i];
+          module = t8._0;
+          node = t8._1;
+          shadowed = A.ShadowedModuleView_ifNecessary0(module, t3, t1, t2, t10);
+          if (shadowed != null) {
+            forwardedModules.remove$1(0, module);
+            t8 = shadowed.variables;
+            if (t8.get$isEmpty(t8)) {
+              t8 = shadowed.functions;
+              if (t8.get$isEmpty(t8)) {
+                t8 = shadowed.mixins;
+                if (t8.get$isEmpty(t8)) {
+                  t8 = shadowed._shadowed_view0$_inner;
+                  t8 = t8.get$css(t8);
+                  t8 = J.get$isEmpty$asx(t8.get$children(t8));
+                } else
+                  t8 = false;
+              } else
+                t8 = false;
+            } else
+              t8 = false;
+            if (!t8)
+              forwardedModules.$indexSet(0, shadowed, node);
+          }
+        }
+        t5.addAll$1(0, forwarded);
+        forwardedModules.addAll$1(0, forwarded);
+      } else {
+        t6 = _this._environment0$_nestedForwardedModules;
+        if (t6 == null) {
+          _length = t5 - 1;
+          _list = J.JSArray_JSArray$allocateGrowable(_length, type$.List_Module_Callable_2);
+          for (t5 = type$.JSArray_Module_Callable_2, _i = 0; _i < _length; ++_i)
+            _list[_i] = A._setArrayType([], t5);
+          _this._environment0$_nestedForwardedModules = _list;
+          t5 = _list;
+        } else
+          t5 = t6;
+        B.JSArray_methods.addAll$1(B.JSArray_methods.get$last(t5), new A.LinkedHashMapKeyIterable(forwarded, A._instanceType(forwarded)._eval$1("LinkedHashMapKeyIterable<1>")));
+      }
+      for (t2 = A._LinkedHashSetIterator$(t2, t2._modifications, t2.$ti._precomputed1), t5 = _this._environment0$_variableIndices, t6 = _this._environment0$_variableNodes, t7 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t8 = t2._collection$_current;
+        if (t8 == null)
+          t8 = t7._as(t8);
+        t5.remove$1(0, t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t8);
+        J.remove$1$z(B.JSArray_methods.get$last(t6), t8);
+      }
+      for (t2 = A._LinkedHashSetIterator$(t3, t3._modifications, t3.$ti._precomputed1), t3 = _this._environment0$_functionIndices, t4 = _this._environment0$_functions, t5 = t2.$ti._precomputed1; t2.moveNext$0();) {
+        t6 = t2._collection$_current;
+        if (t6 == null)
+          t6 = t5._as(t6);
+        t3.remove$1(0, t6);
+        J.remove$1$z(B.JSArray_methods.get$last(t4), t6);
+      }
+      for (t1 = A._LinkedHashSetIterator$(t1, t1._modifications, t1.$ti._precomputed1), t2 = _this._environment0$_mixinIndices, t3 = _this._environment0$_mixins, t4 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t5 = t1._collection$_current;
+        if (t5 == null)
+          t5 = t4._as(t5);
+        t2.remove$1(0, t5);
+        J.remove$1$z(B.JSArray_methods.get$last(t3), t5);
+      }
+    },
+    getVariable$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._environment0$_getModule$1(namespace).get$variables().$index(0, $name);
+      if (_this._environment0$_lastVariableName === $name) {
+        t1 = _this._environment0$_lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._environment0$_variables[t1], $name);
+        return t1 == null ? _this._environment0$_getVariableFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._environment0$_variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._environment0$_lastVariableName = $name;
+        _this._environment0$_lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._environment0$_variables[_0_0], $name);
+        return t1 == null ? _this._environment0$_getVariableFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._environment0$_variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._environment0$_lastVariableName = $name;
+          _this._environment0$_lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._environment0$_variables[_1_0], $name);
+          return t1 == null ? _this._environment0$_getVariableFromGlobalModule$1($name) : t1;
+        } else
+          return _this._environment0$_getVariableFromGlobalModule$1($name);
+      }
+    },
+    getVariable$1($name) {
+      return this.getVariable$2$namespace($name, null);
+    },
+    _environment0$_getVariableFromGlobalModule$1($name) {
+      return this._environment0$_fromOneModule$3($name, "variable", new A.Environment__getVariableFromGlobalModule_closure0($name));
+    },
+    getVariableNode$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._environment0$_getModule$1(namespace).get$variableNodes().$index(0, $name);
+      if (_this._environment0$_lastVariableName === $name) {
+        t1 = _this._environment0$_lastVariableIndex;
+        t1.toString;
+        t1 = J.$index$asx(_this._environment0$_variableNodes[t1], $name);
+        return t1 == null ? _this._environment0$_getVariableNodeFromGlobalModule$1($name) : t1;
+      }
+      t1 = _this._environment0$_variableIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        _this._environment0$_lastVariableName = $name;
+        _this._environment0$_lastVariableIndex = _0_0;
+        t1 = J.$index$asx(_this._environment0$_variableNodes[_0_0], $name);
+        return t1 == null ? _this._environment0$_getVariableNodeFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._environment0$_variableIndex$1($name);
+        if (_1_0 != null) {
+          _this._environment0$_lastVariableName = $name;
+          _this._environment0$_lastVariableIndex = _1_0;
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._environment0$_variableNodes[_1_0], $name);
+          return t1 == null ? _this._environment0$_getVariableNodeFromGlobalModule$1($name) : t1;
+        } else
+          return _this._environment0$_getVariableNodeFromGlobalModule$1($name);
+      }
+    },
+    _environment0$_getVariableNodeFromGlobalModule$1($name) {
+      var t1, t2, _0_0;
+      for (t1 = this._environment0$_importedModules, t2 = this._environment0$_globalModules, t2 = new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>")).followedBy$1(0, new A.LinkedHashMapKeyIterable(t2, A._instanceType(t2)._eval$1("LinkedHashMapKeyIterable<1>"))), t2 = new A.FollowedByIterator(J.get$iterator$ax(t2.__internal$_first), t2._second); t2.moveNext$0();) {
+        t1 = t2._currentIterator;
+        _0_0 = t1.get$current(t1).get$variableNodes().$index(0, $name);
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    globalVariableExists$2$namespace($name, namespace) {
+      if (namespace != null)
+        return this._environment0$_getModule$1(namespace).get$variables().containsKey$1($name);
+      if (B.JSArray_methods.get$first(this._environment0$_variables).containsKey$1($name))
+        return true;
+      return this._environment0$_getVariableFromGlobalModule$1($name) != null;
+    },
+    globalVariableExists$1($name) {
+      return this.globalVariableExists$2$namespace($name, null);
+    },
+    _environment0$_variableIndex$1($name) {
+      var t1, i;
+      for (t1 = this._environment0$_variables, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    setVariable$5$global$namespace($name, value, nodeWithSpan, global, namespace) {
+      var t1, moduleWithName, nestedForwardedModules, t2, t3, t4, t5, index, _this = this;
+      if (namespace != null) {
+        _this._environment0$_getModule$1(namespace).setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      if (global || _this._environment0$_variables.length === 1) {
+        _this._environment0$_variableIndices.putIfAbsent$2($name, new A.Environment_setVariable_closure2(_this, $name));
+        t1 = _this._environment0$_variables;
+        if (!B.JSArray_methods.get$first(t1).containsKey$1($name)) {
+          moduleWithName = _this._environment0$_fromOneModule$3($name, "variable", new A.Environment_setVariable_closure3($name));
+          if (moduleWithName != null) {
+            moduleWithName.setVariable$3($name, value, nodeWithSpan);
+            return;
+          }
+        }
+        J.$indexSet$ax(B.JSArray_methods.get$first(t1), $name, value);
+        J.$indexSet$ax(B.JSArray_methods.get$first(_this._environment0$_variableNodes), $name, nodeWithSpan);
+        return;
+      }
+      nestedForwardedModules = _this._environment0$_nestedForwardedModules;
+      if (nestedForwardedModules != null && !_this._environment0$_variableIndices.containsKey$1($name) && _this._environment0$_variableIndex$1($name) == null)
+        for (t1 = A._arrayInstanceType(nestedForwardedModules)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(nestedForwardedModules, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            if (t5 == null)
+              t5 = t4._as(t5);
+            if (t5.get$variables().containsKey$1($name)) {
+              t5.setVariable$3($name, value, nodeWithSpan);
+              return;
+            }
+          }
+        }
+      if (_this._environment0$_lastVariableName === $name) {
+        t1 = _this._environment0$_lastVariableIndex;
+        t1.toString;
+        index = t1;
+      } else
+        index = _this._environment0$_variableIndices.putIfAbsent$2($name, new A.Environment_setVariable_closure4(_this, $name));
+      if (!_this._environment0$_inSemiGlobalScope && index === 0) {
+        index = _this._environment0$_variables.length - 1;
+        _this._environment0$_variableIndices.$indexSet(0, $name, index);
+      }
+      _this._environment0$_lastVariableName = $name;
+      _this._environment0$_lastVariableIndex = index;
+      J.$indexSet$ax(_this._environment0$_variables[index], $name, value);
+      J.$indexSet$ax(_this._environment0$_variableNodes[index], $name, nodeWithSpan);
+    },
+    setVariable$4$global($name, value, nodeWithSpan, global) {
+      return this.setVariable$5$global$namespace($name, value, nodeWithSpan, global, null);
+    },
+    setLocalVariable$3($name, value, nodeWithSpan) {
+      var index, _this = this,
+        t1 = _this._environment0$_variables,
+        t2 = t1.length;
+      _this._environment0$_lastVariableName = $name;
+      index = _this._environment0$_lastVariableIndex = t2 - 1;
+      _this._environment0$_variableIndices.$indexSet(0, $name, index);
+      J.$indexSet$ax(t1[index], $name, value);
+      J.$indexSet$ax(_this._environment0$_variableNodes[index], $name, nodeWithSpan);
+    },
+    getFunction$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null) {
+        t1 = _this._environment0$_getModule$1(namespace);
+        return t1.get$functions(t1).$index(0, $name);
+      }
+      t1 = _this._environment0$_functionIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._environment0$_functions[_0_0], $name);
+        return t1 == null ? _this._environment0$_getFunctionFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._environment0$_functionIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._environment0$_functions[_1_0], $name);
+          return t1 == null ? _this._environment0$_getFunctionFromGlobalModule$1($name) : t1;
+        } else
+          return _this._environment0$_getFunctionFromGlobalModule$1($name);
+      }
+    },
+    getFunction$1($name) {
+      return this.getFunction$2$namespace($name, null);
+    },
+    _environment0$_getFunctionFromGlobalModule$1($name) {
+      return this._environment0$_fromOneModule$3($name, "function", new A.Environment__getFunctionFromGlobalModule_closure0($name));
+    },
+    _environment0$_functionIndex$1($name) {
+      var t1, i;
+      for (t1 = this._environment0$_functions, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    getMixin$2$namespace($name, namespace) {
+      var t1, _0_0, _1_0, _this = this;
+      if (namespace != null)
+        return _this._environment0$_getModule$1(namespace).get$mixins().$index(0, $name);
+      t1 = _this._environment0$_mixinIndices;
+      _0_0 = t1.$index(0, $name);
+      if (_0_0 != null) {
+        t1 = J.$index$asx(_this._environment0$_mixins[_0_0], $name);
+        return t1 == null ? _this._environment0$_getMixinFromGlobalModule$1($name) : t1;
+      } else {
+        _1_0 = _this._environment0$_mixinIndex$1($name);
+        if (_1_0 != null) {
+          t1.$indexSet(0, $name, _1_0);
+          t1 = J.$index$asx(_this._environment0$_mixins[_1_0], $name);
+          return t1 == null ? _this._environment0$_getMixinFromGlobalModule$1($name) : t1;
+        } else
+          return _this._environment0$_getMixinFromGlobalModule$1($name);
+      }
+    },
+    _environment0$_getMixinFromGlobalModule$1($name) {
+      return this._environment0$_fromOneModule$3($name, "mixin", new A.Environment__getMixinFromGlobalModule_closure0($name));
+    },
+    _environment0$_mixinIndex$1($name) {
+      var t1, i;
+      for (t1 = this._environment0$_mixins, i = t1.length - 1; i >= 0; --i)
+        if (t1[i].containsKey$1($name))
+          return i;
+      return null;
+    },
+    withContent$2($content, callback) {
+      var oldContent = this._environment0$_content;
+      this._environment0$_content = $content;
+      callback.call$0();
+      this._environment0$_content = oldContent;
+    },
+    asMixin$1(callback) {
+      var oldInMixin = this._environment0$_inMixin;
+      this._environment0$_inMixin = true;
+      callback.call$0();
+      this._environment0$_inMixin = oldInMixin;
+    },
+    scope$1$3$semiGlobal$when(callback, semiGlobal, when) {
+      var wasInSemiGlobalScope, $name, name0, name1, t1, t2, t3, t4, t5, t6, _this = this;
+      semiGlobal = semiGlobal && _this._environment0$_inSemiGlobalScope;
+      wasInSemiGlobalScope = _this._environment0$_inSemiGlobalScope;
+      _this._environment0$_inSemiGlobalScope = semiGlobal;
+      if (!when)
+        try {
+          t1 = callback.call$0();
+          return t1;
+        } finally {
+          _this._environment0$_inSemiGlobalScope = wasInSemiGlobalScope;
+        }
+      t1 = _this._environment0$_variables;
+      t2 = type$.String;
+      B.JSArray_methods.add$1(t1, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.Value_2));
+      t3 = _this._environment0$_variableNodes;
+      B.JSArray_methods.add$1(t3, A.LinkedHashMap_LinkedHashMap$_empty(t2, type$.AstNode_2));
+      t4 = _this._environment0$_functions;
+      t5 = type$.Callable_2;
+      B.JSArray_methods.add$1(t4, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+      t6 = _this._environment0$_mixins;
+      B.JSArray_methods.add$1(t6, A.LinkedHashMap_LinkedHashMap$_empty(t2, t5));
+      t5 = _this._environment0$_nestedForwardedModules;
+      if (t5 != null)
+        t5.push(A._setArrayType([], type$.JSArray_Module_Callable_2));
+      try {
+        t2 = callback.call$0();
+        return t2;
+      } finally {
+        _this._environment0$_inSemiGlobalScope = wasInSemiGlobalScope;
+        _this._environment0$_lastVariableIndex = _this._environment0$_lastVariableName = null;
+        for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t1))), t2 = _this._environment0$_variableIndices; t1.moveNext$0();) {
+          $name = t1.get$current(t1);
+          t2.remove$1(0, $name);
+        }
+        B.JSArray_methods.removeLast$0(t3);
+        for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t4))), t2 = _this._environment0$_functionIndices; t1.moveNext$0();) {
+          name0 = t1.get$current(t1);
+          t2.remove$1(0, name0);
+        }
+        for (t1 = J.get$iterator$ax(J.get$keys$z(B.JSArray_methods.removeLast$0(t6))), t2 = _this._environment0$_mixinIndices; t1.moveNext$0();) {
+          name1 = t1.get$current(t1);
+          t2.remove$1(0, name1);
+        }
+        t1 = _this._environment0$_nestedForwardedModules;
+        if (t1 != null)
+          t1.pop();
+      }
+    },
+    scope$1$1(callback) {
+      return this.scope$1$3$semiGlobal$when(callback, false, true);
+    },
+    scope$1$2$when(callback, when) {
+      return this.scope$1$3$semiGlobal$when(callback, false, when);
+    },
+    scope$1$2$semiGlobal(callback, semiGlobal) {
+      return this.scope$1$3$semiGlobal$when(callback, semiGlobal, true);
+    },
+    toImplicitConfiguration$0() {
+      var t2, t3, t4, i, values, nodes, t5, t6, $name, value,
+        t1 = type$.String,
+        configuration = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.ConfiguredValue_2);
+      for (t2 = this._environment0$_variables, t3 = type$.Value_2, t4 = this._environment0$_variableNodes, i = 0; i < t2.length; ++i) {
+        values = t2[i];
+        nodes = t4[i];
+        for (t5 = A.MapExtensions_get_pairs0(values, t1, t3), t5 = t5.get$iterator(t5); t5.moveNext$0();) {
+          t6 = t5.get$current(t5);
+          $name = t6._0;
+          value = t6._1;
+          t6 = nodes.$index(0, $name);
+          t6.toString;
+          configuration.$indexSet(0, $name, new A.ConfiguredValue0(value, null, t6));
+        }
+      }
+      return new A.Configuration0(configuration, null);
+    },
+    toModule$3(css, preModuleComments, extensionStore) {
+      return A._EnvironmentModule__EnvironmentModule1(this, css, preModuleComments, extensionStore, A.NullableExtension_andThen0(this._environment0$_forwardedModules, new A.Environment_toModule_closure0()));
+    },
+    toDummyModule$0() {
+      return A._EnvironmentModule__EnvironmentModule1(this, new A.CssStylesheet0(new A.UnmodifiableListView(B.List_empty16, type$.UnmodifiableListView_CssNode_2), A.SourceFile$decoded(B.List_empty4, "<dummy module>").span$1(0, 0)), B.Map_empty9, B.C_EmptyExtensionStore0, A.NullableExtension_andThen0(this._environment0$_forwardedModules, new A.Environment_toDummyModule_closure0()));
+    },
+    _environment0$_getModule$1(namespace) {
+      var _0_0 = this._environment0$_modules.$index(0, namespace);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$0('There is no module with the namespace "' + namespace + '".', null));
+    },
+    _environment0$_fromOneModule$1$3($name, type, callback) {
+      var t1, t2, t3, t4, t5, _1_0, _2_0, value, identity, valueInModule, identityFromModule, module, node,
+        _0_0 = this._environment0$_nestedForwardedModules;
+      if (_0_0 != null)
+        for (t1 = A._arrayInstanceType(_0_0)._eval$1("ReversedListIterable<1>"), t2 = new A.ReversedListIterable(_0_0, t1), t2 = new A.ListIterator(t2, t2.get$length(0), t1._eval$1("ListIterator<ListIterable.E>")), t1 = t1._eval$1("ListIterable.E"); t2.moveNext$0();) {
+          t3 = t2.__internal$_current;
+          for (t3 = J.get$reversed$ax(t3 == null ? t1._as(t3) : t3), t4 = t3.$ti, t3 = new A.ListIterator(t3, t3.get$length(0), t4._eval$1("ListIterator<ListIterable.E>")), t4 = t4._eval$1("ListIterable.E"); t3.moveNext$0();) {
+            t5 = t3.__internal$_current;
+            _1_0 = callback.call$1(t5 == null ? t4._as(t5) : t5);
+            if (_1_0 != null)
+              return _1_0;
+          }
+        }
+      for (t1 = this._environment0$_importedModules, t1 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications); t1.moveNext$0();) {
+        _2_0 = callback.call$1(t1.__js_helper$_current);
+        if (_2_0 != null)
+          return _2_0;
+      }
+      for (t1 = this._environment0$_globalModules, t2 = A.LinkedHashMapKeyIterator$(t1, t1.__js_helper$_modifications), t3 = type$.Callable_2, value = null, identity = null; t2.moveNext$0();) {
+        t4 = t2.__js_helper$_current;
+        valueInModule = callback.call$1(t4);
+        if (valueInModule == null)
+          continue;
+        identityFromModule = t3._is(valueInModule) ? valueInModule : t4.variableIdentity$1($name);
+        if (identityFromModule.$eq(0, identity))
+          continue;
+        if (value != null) {
+          t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          for (t3 = A.MapExtensions_get_pairs0(t1, type$.Module_Callable_2, type$.AstNode_2), t3 = t3.get$iterator(t3), t4 = "includes " + type; t3.moveNext$0();) {
+            t1 = t3.get$current(t3);
+            module = t1._0;
+            node = t1._1;
+            if (callback.call$1(module) != null)
+              t2.$indexSet(0, node.get$span(node), t4);
+          }
+          throw A.wrapException(A.MultiSpanSassScriptException$0("This " + type + string$.x20is_av, type + " use", t2));
+        }
+        identity = identityFromModule;
+        value = valueInModule;
+      }
+      return value;
+    },
+    _environment0$_fromOneModule$3($name, type, callback) {
+      return this._environment0$_fromOneModule$1$3($name, type, callback, type$.dynamic);
+    }
+  };
+  A.Environment__getVariableFromGlobalModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$variables().$index(0, this.name);
+    },
+    $signature: 417
+  };
+  A.Environment_setVariable_closure2.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._environment0$_lastVariableName = this.name;
+      return t1._environment0$_lastVariableIndex = 0;
+    },
+    $signature: 10
+  };
+  A.Environment_setVariable_closure3.prototype = {
+    call$1(module) {
+      return module.get$variables().containsKey$1(this.name) ? module : null;
+    },
+    $signature: 418
+  };
+  A.Environment_setVariable_closure4.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._environment0$_variableIndex$1(this.name);
+      return t2 == null ? t1._environment0$_variables.length - 1 : t2;
+    },
+    $signature: 10
+  };
+  A.Environment__getFunctionFromGlobalModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$functions(module).$index(0, this.name);
+    },
+    $signature: 197
+  };
+  A.Environment__getMixinFromGlobalModule_closure0.prototype = {
+    call$1(module) {
+      return module.get$mixins().$index(0, this.name);
+    },
+    $signature: 197
+  };
+  A.Environment_toModule_closure0.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_Callable_2);
+    },
+    $signature: 243
+  };
+  A.Environment_toDummyModule_closure0.prototype = {
+    call$1(modules) {
+      return new A.MapKeySet(modules, type$.MapKeySet_Module_Callable_2);
+    },
+    $signature: 243
+  };
+  A._EnvironmentModule1.prototype = {
+    get$url(_) {
+      var t1 = this.css;
+      return t1.get$span(t1).file.url;
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      var t1, t2,
+        _0_0 = this._environment0$_modulesByVariable.$index(0, $name);
+      if (_0_0 != null) {
+        _0_0.setVariable$3($name, value, nodeWithSpan);
+        return;
+      }
+      t1 = this._environment0$_environment;
+      t2 = t1._environment0$_variables;
+      if (!B.JSArray_methods.get$first(t2).containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$0("Undefined variable.", null));
+      J.$indexSet$ax(B.JSArray_methods.get$first(t2), $name, value);
+      J.$indexSet$ax(B.JSArray_methods.get$first(t1._environment0$_variableNodes), $name, nodeWithSpan);
+      return;
+    },
+    variableIdentity$1($name) {
+      var module = this._environment0$_modulesByVariable.$index(0, $name);
+      return module == null ? this : module.variableIdentity$1($name);
+    },
+    cloneCss$0() {
+      var _0_0, _this = this;
+      if (!_this.transitivelyContainsCss)
+        return _this;
+      _0_0 = A.cloneCssStylesheet0(_this.css, _this.extensionStore);
+      return A._EnvironmentModule$_1(_this._environment0$_environment, _0_0._0, _this.preModuleComments, _0_0._1, _this._environment0$_modulesByVariable, _this.variables, _this.variableNodes, _this.functions, _this.mixins, true, _this.transitivelyContainsExtensions);
+    },
+    toString$0(_) {
+      var t2,
+        t1 = this.css;
+      if (t1.get$span(t1).file.url == null)
+        t1 = "<unknown url>";
+      else {
+        t1 = t1.get$span(t1).file.url;
+        t2 = $.$get$context();
+        t1.toString;
+        t1 = t2.prettyUri$1(t1);
+      }
+      return t1;
+    },
+    $isModule1: 1,
+    get$upstream() {
+      return this.upstream;
+    },
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    },
+    get$extensionStore() {
+      return this.extensionStore;
+    },
+    get$css(receiver) {
+      return this.css;
+    },
+    get$preModuleComments() {
+      return this.preModuleComments;
+    },
+    get$transitivelyContainsCss() {
+      return this.transitivelyContainsCss;
+    },
+    get$transitivelyContainsExtensions() {
+      return this.transitivelyContainsExtensions;
+    }
+  };
+  A._EnvironmentModule__EnvironmentModule_closure11.prototype = {
+    call$1(module) {
+      return module.get$variables();
+    },
+    $signature: 421
+  };
+  A._EnvironmentModule__EnvironmentModule_closure12.prototype = {
+    call$1(module) {
+      return module.get$variableNodes();
+    },
+    $signature: 422
+  };
+  A._EnvironmentModule__EnvironmentModule_closure13.prototype = {
+    call$1(module) {
+      return module.get$functions(module);
+    },
+    $signature: 196
+  };
+  A._EnvironmentModule__EnvironmentModule_closure14.prototype = {
+    call$1(module) {
+      return module.get$mixins();
+    },
+    $signature: 196
+  };
+  A._EnvironmentModule__EnvironmentModule_closure15.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 123
+  };
+  A._EnvironmentModule__EnvironmentModule_closure16.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsExtensions();
+    },
+    $signature: 123
+  };
+  A.ErrorRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitErrorRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@error " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._EvaluateVisitor1.prototype = {
+    _EvaluateVisitor$6$functions$importCache$logger$nodeImporter$quietDeps$sourceMap1(functions, importCache, logger, nodeImporter, quietDeps, sourceMap) {
+      var t2, metaModule, t3, _i, module, $function, t4, _this = this,
+        _s20_ = "$name, $module: null",
+        _s9_ = "sass:meta",
+        _s7_ = "$module",
+        t1 = type$.JSArray_BuiltInCallable_2,
+        metaFunctions = A._setArrayType([A.BuiltInCallable$function0("global-variable-exists", _s20_, new A._EvaluateVisitor_closure25(_this), _s9_), A.BuiltInCallable$function0("variable-exists", "$name", new A._EvaluateVisitor_closure26(_this), _s9_), A.BuiltInCallable$function0("function-exists", _s20_, new A._EvaluateVisitor_closure27(_this), _s9_), A.BuiltInCallable$function0("mixin-exists", _s20_, new A._EvaluateVisitor_closure28(_this), _s9_), A.BuiltInCallable$function0("content-exists", "", new A._EvaluateVisitor_closure29(_this), _s9_), A.BuiltInCallable$function0("module-variables", _s7_, new A._EvaluateVisitor_closure30(_this), _s9_), A.BuiltInCallable$function0("module-functions", _s7_, new A._EvaluateVisitor_closure31(_this), _s9_), A.BuiltInCallable$function0("module-mixins", _s7_, new A._EvaluateVisitor_closure32(_this), _s9_), A.BuiltInCallable$function0("get-function", "$name, $css: false, $module: null", new A._EvaluateVisitor_closure33(_this), _s9_), A.BuiltInCallable$function0("get-mixin", _s20_, new A._EvaluateVisitor_closure34(_this), _s9_), A.BuiltInCallable$function0("call", "$function, $args...", new A._EvaluateVisitor_closure35(_this), _s9_)], t1),
+        metaMixins = A._setArrayType([A.BuiltInCallable$mixin0("load-css", "$url, $with: null", new A._EvaluateVisitor_closure36(_this), false, _s9_), A.BuiltInCallable$mixin0("apply", "$mixin, $args...", new A._EvaluateVisitor_closure37(_this), true, _s9_)], t1);
+      t1 = type$.BuiltInCallable_2;
+      t2 = A.List_List$of($.$get$global6(), true, t1);
+      B.JSArray_methods.addAll$1(t2, $.$get$local0());
+      B.JSArray_methods.addAll$1(t2, metaFunctions);
+      metaModule = A.BuiltInModule$0("meta", t2, metaMixins, null, t1);
+      for (t1 = A.List_List$of($.$get$coreModules0(), true, type$.BuiltInModule_Callable_2), t1.push(metaModule), t2 = t1.length, t3 = _this._evaluate0$_builtInModules, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        module = t1[_i];
+        t3.$indexSet(0, module.url, module);
+      }
+      t1 = A._setArrayType([], type$.JSArray_Callable_2);
+      B.JSArray_methods.addAll$1(t1, functions);
+      B.JSArray_methods.addAll$1(t1, $.$get$globalFunctions0());
+      B.JSArray_methods.addAll$1(t1, metaFunctions);
+      for (t2 = t1.length, t3 = _this._evaluate0$_builtInFunctions, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        $function = t1[_i];
+        t4 = J.get$name$x($function);
+        t3.$indexSet(0, A.stringReplaceAllUnchecked(t4, "_", "-"), $function);
+      }
+    },
+    run$2(_, importer, node) {
+      var error, stackTrace, t1, exception;
+      try {
+        t1 = type$.nullable_Object;
+        t1 = A.runZoned(new A._EvaluateVisitor_run_closure1(this, node, importer), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__evaluationContext, new A._EvaluationContext1(this, node)], t1, t1), type$.Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2);
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace0(error.withLoadedUrls$1(this._evaluate0$_loadedUrls), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _evaluate0$_assertInModule$1$2(value, $name) {
+      if (value != null)
+        return value;
+      throw A.wrapException(A.StateError$("Can't access " + $name + " outside of a module."));
+    },
+    _evaluate0$_assertInModule$2(value, $name) {
+      return this._evaluate0$_assertInModule$1$2(value, $name, type$.dynamic);
+    },
+    _evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, baseUrl, configuration, namesInErrors) {
+      var t2, _this = this, t1 = {},
+        _0_0 = _this._evaluate0$_builtInModules.$index(0, url);
+      t1.builtInModule = null;
+      if (_0_0 != null) {
+        t1.builtInModule = _0_0;
+        if (configuration instanceof A.ExplicitConfiguration0) {
+          t1 = namesInErrors ? "Built-in module " + url.toString$0(0) + " can't be configured." : "Built-in modules can't be configured.";
+          t2 = configuration.nodeWithSpan;
+          throw A.wrapException(_this._evaluate0$_exception$2(t1, t2.get$span(t2)));
+        }
+        _this._evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__loadModule_closure3(t1, callback));
+        return;
+      }
+      _this._evaluate0$_withStackFrame$3(stackFrame, nodeWithSpan, new A._EvaluateVisitor__loadModule_closure4(_this, url, nodeWithSpan, baseUrl, namesInErrors, configuration, callback));
+    },
+    _evaluate0$_loadModule$5$configuration(url, stackFrame, nodeWithSpan, callback, configuration) {
+      return this._evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, configuration, false);
+    },
+    _evaluate0$_loadModule$4(url, stackFrame, nodeWithSpan, callback) {
+      return this._evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, stackFrame, nodeWithSpan, callback, null, null, false);
+    },
+    _evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, configuration, namesInErrors, nodeWithSpan) {
+      var currentConfiguration, t2, t3, message, existingSpan, configurationSpan, environment, css, preModuleComments, extensionStore, module, _this = this,
+        url = stylesheet.span.file.url,
+        t1 = _this._evaluate0$_modules,
+        _0_0 = t1.$index(0, url);
+      if (_0_0 != null) {
+        t1 = configuration == null;
+        currentConfiguration = t1 ? _this._evaluate0$_configuration : configuration;
+        t2 = _this._evaluate0$_moduleConfigurations.$index(0, url);
+        t3 = t2._configuration0$__originalConfiguration;
+        t2 = t3 == null ? t2 : t3;
+        t3 = currentConfiguration._configuration0$__originalConfiguration;
+        if (t2 !== (t3 == null ? currentConfiguration : t3) && currentConfiguration instanceof A.ExplicitConfiguration0) {
+          if (namesInErrors) {
+            t2 = $.$get$context();
+            url.toString;
+            message = t2.prettyUri$1(url) + string$.x20was_a;
+          } else
+            message = string$.This_mw;
+          t2 = _this._evaluate0$_moduleNodes.$index(0, url);
+          existingSpan = t2 == null ? null : t2.get$span(t2);
+          if (t1) {
+            t1 = currentConfiguration.nodeWithSpan;
+            configurationSpan = t1.get$span(t1);
+          } else
+            configurationSpan = null;
+          t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (existingSpan != null)
+            t1.$indexSet(0, existingSpan, "original load");
+          if (configurationSpan != null)
+            t1.$indexSet(0, configurationSpan, "configuration");
+          throw A.wrapException(t1.get$isEmpty(0) ? _this._evaluate0$_exception$1(message) : _this._evaluate0$_multiSpanException$3(message, "new load", t1));
+        }
+        return _0_0;
+      }
+      environment = A.Environment$0();
+      css = A._Cell$();
+      preModuleComments = A._Cell$();
+      extensionStore = A.ExtensionStore$0();
+      _this._evaluate0$_withEnvironment$2(environment, new A._EvaluateVisitor__execute_closure1(_this, importer, stylesheet, extensionStore, configuration, css, preModuleComments));
+      t2 = css._readLocal$0();
+      t3 = preModuleComments._readLocal$0();
+      module = environment.toModule$3(t2, t3 == null ? B.Map_empty9 : t3, extensionStore);
+      if (url != null) {
+        t1.$indexSet(0, url, module);
+        _this._evaluate0$_moduleConfigurations.$indexSet(0, url, _this._evaluate0$_configuration);
+        if (nodeWithSpan != null)
+          _this._evaluate0$_moduleNodes.$indexSet(0, url, nodeWithSpan);
+      }
+      return module;
+    },
+    _evaluate0$_execute$2(importer, stylesheet) {
+      return this._evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, null, false, null);
+    },
+    _evaluate0$_addOutOfOrderImports$0() {
+      var t1, t2, _this = this, _s5_ = "_root",
+        _s13_ = "_endOfImports",
+        _0_0 = _this._evaluate0$_outOfOrderImports;
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).children;
+          break $label0$0;
+        }
+        t1 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).children;
+        t1 = A.List_List$of(A.SubListIterable$(t1, 0, A.checkNotNullable(_this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_), "count", type$.int), t1.$ti._eval$1("ListBase.E")), true, type$.ModifiableCssNode_2);
+        B.JSArray_methods.addAll$1(t1, _0_0);
+        t2 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).children;
+        B.JSArray_methods.addAll$1(t1, A.SubListIterable$(t2, _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_), null, t2.$ti._eval$1("ListBase.E")));
+        break $label0$0;
+      }
+      return t1;
+    },
+    _evaluate0$_combineCss$2$clone(root, clone) {
+      var selectors, _0_0, t1, imports, css, sorted, t2;
+      if (!B.JSArray_methods.any$1(root.get$upstream(), new A._EvaluateVisitor__combineCss_closure3())) {
+        selectors = root.get$extensionStore().get$simpleSelectors();
+        _0_0 = A.IterableExtension_get_firstOrNull(root.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__combineCss_closure4(selectors)));
+        if (_0_0 != null)
+          this._evaluate0$_throwForUnsatisfiedExtension$1(_0_0);
+        return root.get$css(root);
+      }
+      t1 = type$.JSArray_CssNode_2;
+      imports = A._setArrayType([], t1);
+      css = A._setArrayType([], t1);
+      t1 = type$.Module_Callable_2;
+      sorted = A.ListQueue$(t1);
+      new A._EvaluateVisitor__combineCss_visitModule1(this, A.LinkedHashSet_LinkedHashSet$_empty(t1), clone, css, imports, sorted).call$1(root);
+      if (root.get$transitivelyContainsExtensions())
+        this._evaluate0$_extendModules$1(sorted);
+      t1 = B.JSArray_methods.$add(imports, css);
+      t2 = root.get$css(root);
+      return new A.CssStylesheet0(new A.UnmodifiableListView(t1, type$.UnmodifiableListView_CssNode_2), t2.get$span(t2));
+    },
+    _evaluate0$_combineCss$1(root) {
+      return this._evaluate0$_combineCss$2$clone(root, false);
+    },
+    _evaluate0$_extendModules$1(sortedModules) {
+      var t1, t2, t3, originalSelectors, $self, t4, t5, _i, upstream, _0_0,
+        downstreamExtensionStores = A.LinkedHashMap_LinkedHashMap$_empty(type$.Uri, type$.List_ExtensionStore_2),
+        unsatisfiedExtensions = new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_Extension_2);
+      for (t1 = A._ListQueueIterator$(sortedModules, sortedModules.$ti._precomputed1), t2 = t1.$ti._precomputed1; t1.moveNext$0();) {
+        t3 = t1._collection$_current;
+        if (t3 == null)
+          t3 = t2._as(t3);
+        originalSelectors = t3.get$extensionStore().get$simpleSelectors().toSet$0(0);
+        unsatisfiedExtensions.addAll$1(0, t3.get$extensionStore().extensionsWhereTarget$1(new A._EvaluateVisitor__extendModules_closure3(originalSelectors)));
+        $self = downstreamExtensionStores.$index(0, t3.get$url(t3));
+        t4 = t3.get$extensionStore().get$addExtensions();
+        if ($self != null)
+          t4.call$1($self);
+        t4 = t3.get$extensionStore();
+        if (t4.get$isEmpty(t4))
+          continue;
+        for (t4 = t3.get$upstream(), t5 = t4.length, _i = 0; _i < t4.length; t4.length === t5 || (0, A.throwConcurrentModificationError)(t4), ++_i) {
+          upstream = t4[_i];
+          _0_0 = upstream.get$url(upstream);
+          if (_0_0 != null)
+            J.add$1$ax(downstreamExtensionStores.putIfAbsent$2(_0_0, new A._EvaluateVisitor__extendModules_closure4()), t3.get$extensionStore());
+        }
+        unsatisfiedExtensions.removeAll$1(t3.get$extensionStore().extensionsWhereTarget$1(originalSelectors.get$contains(originalSelectors)));
+      }
+      if (unsatisfiedExtensions._collection$_length !== 0)
+        this._evaluate0$_throwForUnsatisfiedExtension$1(unsatisfiedExtensions.get$first(0));
+    },
+    _evaluate0$_throwForUnsatisfiedExtension$1(extension) {
+      throw A.wrapException(A.SassException$0(string$.The_ta + extension.target.toString$0(0) + ' !optional" to avoid this error.', extension.span, null));
+    },
+    _evaluate0$_indexAfterImports$1(statements) {
+      var t1, lastImport, i, _0_0;
+      for (t1 = J.getInterceptor$asx(statements), lastImport = -1, i = 0; i < t1.get$length(statements); ++i) {
+        $label0$0: {
+          _0_0 = t1.$index(statements, i);
+          if (_0_0 instanceof A.ModifiableCssImport0)
+            break $label0$0;
+          if (_0_0 instanceof A.ModifiableCssComment0)
+            continue;
+          break;
+        }
+        lastImport = i;
+      }
+      return lastImport + 1;
+    },
+    visitStylesheet$1(node) {
+      var t1, t2, _i;
+      for (t1 = node.children, t2 = t1.length, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(this);
+      return null;
+    },
+    visitAtRootRule$1(node) {
+      var t1, _2_0, root, first, rest, innerCopy, outerCopy, _i, copy, _this = this,
+        _s8_ = "__parent",
+        _0_0 = node.query,
+        query = _0_0 != null ? A.AtRootQueryParser$0(_this._evaluate0$_performInterpolationWithMap$2$warnForColor(_0_0, true)._0, _this._evaluate0$_logger, null).parse$0() : B.AtRootQuery_n2q0,
+        $parent = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_),
+        included = A._setArrayType([], type$.JSArray_ModifiableCssParentNode_2);
+      for (t1 = type$.CssStylesheet_2; !t1._is($parent); $parent = _2_0) {
+        if (!query.excludes$1($parent))
+          included.push($parent);
+        _2_0 = $parent._node$_parent;
+        if (_2_0 == null)
+          throw A.wrapException(A.StateError$(string$.CssNod));
+      }
+      root = _this._evaluate0$_trimIncluded$1(included);
+      if (root === _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_)) {
+        _this._evaluate0$_environment.scope$1$2$when(new A._EvaluateVisitor_visitAtRootRule_closure3(_this, node), node.hasDeclarations, type$.Null);
+        return null;
+      }
+      if (included.length >= 1) {
+        first = included[0];
+        rest = B.JSArray_methods.sublist$1(included, 1);
+        innerCopy = first.copyWithoutChildren$0();
+        for (t1 = rest.length, outerCopy = innerCopy, _i = 0; _i < rest.length; rest.length === t1 || (0, A.throwConcurrentModificationError)(rest), ++_i, outerCopy = copy) {
+          copy = rest[_i].copyWithoutChildren$0();
+          copy.addChild$1(outerCopy);
+        }
+        root.addChild$1(outerCopy);
+      } else
+        innerCopy = root;
+      _this._evaluate0$_scopeForAtRoot$4(node, innerCopy, query, included).call$1(new A._EvaluateVisitor_visitAtRootRule_closure4(_this, node));
+      return null;
+    },
+    _evaluate0$_trimIncluded$1(nodes) {
+      var $parent, t1, innermostContiguous, i, t2, _0_0, _1_0, root, _this = this, _null = null, _s5_ = "_root",
+        _s22_ = " to be an ancestor of ";
+      if (nodes.length === 0)
+        return _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_);
+      $parent = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, "__parent");
+      for (t1 = nodes.length, innermostContiguous = _null, i = 0; i < t1; ++i, $parent = _1_0) {
+        for (; t2 = nodes[i], $parent !== t2; innermostContiguous = _null, $parent = _0_0) {
+          _0_0 = $parent._node$_parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+        }
+        if (innermostContiguous == null)
+          innermostContiguous = i;
+        _1_0 = $parent._node$_parent;
+        if (_1_0 == null)
+          throw A.wrapException(A.ArgumentError$("Expected " + t2.toString$0(0) + _s22_ + _this.toString$0(0) + ".", _null));
+      }
+      if ($parent !== _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_))
+        return _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_);
+      innermostContiguous.toString;
+      root = nodes[innermostContiguous];
+      B.JSArray_methods.removeRange$2(nodes, innermostContiguous, nodes.length);
+      return root;
+    },
+    _evaluate0$_scopeForAtRoot$4(node, newParent, query, included) {
+      var _this = this,
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure11(_this, newParent, node),
+        t1 = query._at_root_query0$_all || query._at_root_query0$_rule;
+      if (t1 !== query.include)
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure12(_this, scope);
+      if (_this._evaluate0$_mediaQueries != null && query.excludesName$1("media"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure13(_this, scope);
+      if (_this._evaluate0$_inKeyframes && query.excludesName$1("keyframes"))
+        scope = new A._EvaluateVisitor__scopeForAtRoot_closure14(_this, scope);
+      return _this._evaluate0$_inUnknownAtRule && !B.JSArray_methods.any$1(included, new A._EvaluateVisitor__scopeForAtRoot_closure15()) ? new A._EvaluateVisitor__scopeForAtRoot_closure16(_this, scope) : scope;
+    },
+    visitContentBlock$1(node) {
+      return A.throwExpression(A.UnsupportedError$(string$.Evalua));
+    },
+    visitContentRule$1(node) {
+      var $content = this._evaluate0$_environment._environment0$_content;
+      if ($content == null)
+        return null;
+      this._evaluate0$_runUserDefinedCallable$1$4(node.$arguments, $content, node, new A._EvaluateVisitor_visitContentRule_closure1(this, $content), type$.Null);
+      return null;
+    },
+    visitDebugRule$1(node) {
+      var value = node.expression.accept$1(this),
+        t1 = value instanceof A.SassString0 ? value._string0$_text : A.serializeValue0(value, true, true);
+      this._evaluate0$_logger.debug$2(0, t1, node.span);
+      return null;
+    },
+    visitDeclaration$1(node) {
+      var t2, $name, _0_0, _1_0, value, t3, t4, t5, _2_0, oldDeclarationName, _this = this, _null = null, t1 = {};
+      if ((_this._evaluate0$_atRootExcludingStyleRule ? _null : _this._evaluate0$_styleRuleIgnoringAtRoot) == null && !_this._evaluate0$_inUnknownAtRule && !_this._evaluate0$_inKeyframes)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Declarm, node.span));
+      if (_this._evaluate0$_declarationName != null && B.JSString_methods.startsWith$1(node.name.get$initialPlain(), "--"))
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Declarw, node.span));
+      t2 = node.name;
+      $name = _this._evaluate0$_interpolationToValue$2$warnForColor(t2, true);
+      _0_0 = _this._evaluate0$_declarationName;
+      if (_0_0 != null)
+        $name = new A.CssValue0(_0_0 + "-" + A.S($name.value), $name.span, type$.CssValue_String_2);
+      _1_0 = node.value;
+      if (_1_0 != null) {
+        value = _1_0.accept$1(_this);
+        if (!value.get$isBlank() || value.get$asList().length === 0) {
+          t3 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, "__parent");
+          t4 = _1_0.get$span(_1_0);
+          t2 = B.JSString_methods.startsWith$1(t2.get$initialPlain(), "--");
+          if (_this._evaluate0$_sourceMap) {
+            t5 = A.NullableExtension_andThen0(_1_0, _this.get$_evaluate0$_expressionNode());
+            t5 = t5 == null ? _null : J.get$span$z(t5);
+          } else
+            t5 = _null;
+          t3.addChild$1(A.ModifiableCssDeclaration$0($name, new A.CssValue0(value, t4, type$.CssValue_Value_2), node.span, t2, t5));
+        } else if (J.startsWith$1$s($name.value, "--"))
+          throw A.wrapException(_this._evaluate0$_exception$2("Custom property values may not be empty.", _1_0.get$span(_1_0)));
+      }
+      _2_0 = node.children;
+      t1.children = null;
+      if (_2_0 != null) {
+        t1.children = _2_0;
+        oldDeclarationName = _this._evaluate0$_declarationName;
+        _this._evaluate0$_declarationName = $name.value;
+        _this._evaluate0$_environment.scope$1$2$when(new A._EvaluateVisitor_visitDeclaration_closure1(t1, _this), node.hasDeclarations, type$.Null);
+        _this._evaluate0$_declarationName = oldDeclarationName;
+      }
+      return _null;
+    },
+    visitEachRule$1(node) {
+      var _this = this, _box_0 = {},
+        t1 = node.list,
+        list = t1.accept$1(_this),
+        nodeWithSpan = _this._evaluate0$_expressionNode$1(t1),
+        _0_0 = node.variables;
+      $label0$0: {
+        _box_0.variable = null;
+        if (_0_0.length === 1) {
+          _box_0.variable = _0_0[0];
+          t1 = new A._EvaluateVisitor_visitEachRule_closure5(_box_0, _this, nodeWithSpan);
+          break $label0$0;
+        }
+        _box_0.variables = null;
+        _box_0.variables = _0_0;
+        t1 = new A._EvaluateVisitor_visitEachRule_closure6(_box_0, _this, nodeWithSpan);
+        break $label0$0;
+      }
+      return _this._evaluate0$_environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitEachRule_closure7(_this, list, t1, node), true, type$.nullable_Value_2);
+    },
+    _evaluate0$_setMultipleVariables$3(variables, value, nodeWithSpan) {
+      var i,
+        list = value.get$asList(),
+        t1 = variables.length,
+        minLength = Math.min(t1, list.length);
+      for (i = 0; i < minLength; ++i)
+        this._evaluate0$_environment.setLocalVariable$3(variables[i], this._evaluate0$_withoutSlash$2(list[i], nodeWithSpan), nodeWithSpan);
+      for (i = minLength; i < t1; ++i)
+        this._evaluate0$_environment.setLocalVariable$3(variables[i], B.C__SassNull0, nodeWithSpan);
+    },
+    visitErrorRule$1(node) {
+      throw A.wrapException(this._evaluate0$_exception$2(J.toString$0$(node.expression.accept$1(this)), node.span));
+    },
+    visitExtendRule$1(node) {
+      var t1, t2, t3, t4, t5, _i, complex, visitor, t6, t7, _0_0, compound, _this = this, _null = null,
+        styleRule = _this._evaluate0$_atRootExcludingStyleRule ? _null : _this._evaluate0$_styleRuleIgnoringAtRoot;
+      if (styleRule == null || _this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.x40exten, node.span));
+      for (t1 = styleRule.originalSelector.components, t2 = t1.length, t3 = node.span, t4 = type$.SourceSpan, t5 = type$.String, _i = 0; _i < t2; ++_i) {
+        complex = t1[_i];
+        if (!complex.accept$1(B._IsBogusVisitor_true0))
+          continue;
+        visitor = A._SerializeVisitor$0(_null, true, _null, true, false, _null, true);
+        complex.accept$1(visitor);
+        t6 = B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0));
+        t7 = complex.accept$1(B.C__IsUselessVisitor0) ? "can't" : "shouldn't";
+        _this._evaluate0$_warn$3('The selector "' + t6 + '" is invalid CSS and ' + t7 + string$.x20be_an, new A.MultiSpan0(A.SpanExtensions_trimRight0(complex.span), "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t3, "@extend rule"], t4, t5), t4, t5)), B.Deprecation_5pG);
+      }
+      _0_0 = _this._evaluate0$_performInterpolationWithMap$2$warnForColor(node.selector, true);
+      for (t1 = A.SelectorList_SelectorList$parse0(A.trimAscii0(_0_0._0, true), false, _0_0._1, _this._evaluate0$_logger, false).components, t2 = t1.length, t3 = styleRule._style_rule0$_selector._box0$_inner, _i = 0; _i < t2; ++_i) {
+        complex = t1[_i];
+        compound = complex.get$singleCompound();
+        if (compound == null)
+          throw A.wrapException(A.SassFormatException$0("complex selectors may not be extended.", complex.span, _null));
+        t4 = compound.components;
+        t5 = t4.length === 1 ? B.JSArray_methods.get$first(t4) : _null;
+        if (t5 == null)
+          throw A.wrapException(A.SassFormatException$0(string$.compou + B.JSArray_methods.join$1(t4, ", ") + string$.x60_inst, compound.span, _null));
+        _this._evaluate0$_assertInModule$2(_this._evaluate0$__extensionStore, "_extensionStore").addExtension$4(t3.value, t5, node, _this._evaluate0$_mediaQueries);
+      }
+      return _null;
+    },
+    visitAtRule$1(node) {
+      var $name, value, children, wasInKeyframes, wasInUnknownAtRule, _this = this;
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.At_rul, node.span));
+      $name = _this._evaluate0$_interpolationToValue$1(node.name);
+      value = A.NullableExtension_andThen0(node.value, new A._EvaluateVisitor_visitAtRule_closure5(_this));
+      children = node.children;
+      if (children == null) {
+        _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, "__parent").addChild$1(A.ModifiableCssAtRule$0($name, node.span, true, value));
+        return null;
+      }
+      wasInKeyframes = _this._evaluate0$_inKeyframes;
+      wasInUnknownAtRule = _this._evaluate0$_inUnknownAtRule;
+      if (A.unvendor0($name.value) === "keyframes")
+        _this._evaluate0$_inKeyframes = true;
+      else
+        _this._evaluate0$_inUnknownAtRule = true;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$0($name, node.span, false, value), new A._EvaluateVisitor_visitAtRule_closure6(_this, $name, children), node.hasDeclarations, new A._EvaluateVisitor_visitAtRule_closure7(), type$.ModifiableCssAtRule_2, type$.Null);
+      _this._evaluate0$_inUnknownAtRule = wasInUnknownAtRule;
+      _this._evaluate0$_inKeyframes = wasInKeyframes;
+      return null;
+    },
+    visitForRule$1(node) {
+      var _this = this, t1 = {},
+        t2 = node.from,
+        fromNumber = _this._evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor_visitForRule_closure9(_this, node)),
+        t3 = node.to,
+        toNumber = _this._evaluate0$_addExceptionSpan$2(t3, new A._EvaluateVisitor_visitForRule_closure10(_this, node)),
+        from = _this._evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor_visitForRule_closure11(fromNumber)),
+        to = t1.to = _this._evaluate0$_addExceptionSpan$2(t3, new A._EvaluateVisitor_visitForRule_closure12(toNumber, fromNumber)),
+        direction = from > to ? -1 : 1;
+      if (from === (!node.isExclusive ? t1.to = to + direction : to))
+        return null;
+      return _this._evaluate0$_environment.scope$1$2$semiGlobal(new A._EvaluateVisitor_visitForRule_closure13(t1, _this, node, from, direction, fromNumber), true, type$.nullable_Value_2);
+    },
+    visitForwardRule$1(node) {
+      var newConfiguration, t4, _i, variable, $name, _this = this,
+        _s8_ = "@forward",
+        oldConfiguration = _this._evaluate0$_configuration,
+        adjustedConfiguration = oldConfiguration.throughForward$1(node),
+        t1 = node.configuration,
+        t2 = t1.length,
+        t3 = node.url;
+      if (t2 !== 0) {
+        newConfiguration = _this._evaluate0$_addForwardConfiguration$2(adjustedConfiguration, node);
+        _this._evaluate0$_loadModule$5$configuration(t3, _s8_, node, new A._EvaluateVisitor_visitForwardRule_closure3(_this, node), newConfiguration);
+        t3 = type$.String;
+        t4 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+        for (_i = 0; _i < t2; ++_i) {
+          variable = t1[_i];
+          if (!variable.isGuarded)
+            t4.add$1(0, variable.name);
+        }
+        _this._evaluate0$_removeUsedConfiguration$3$except(adjustedConfiguration, newConfiguration, t4);
+        t3 = A.LinkedHashSet_LinkedHashSet$_empty(t3);
+        for (_i = 0; _i < t2; ++_i)
+          t3.add$1(0, t1[_i].name);
+        for (t1 = newConfiguration._configuration0$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t4 = t2.length, _i = 0; _i < t2.length; t2.length === t4 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+          $name = t2[_i];
+          if (!t3.contains$1(0, $name))
+            if (!t1.get$isEmpty(t1))
+              t1.remove$1(0, $name);
+        }
+        _this._evaluate0$_assertConfigurationIsEmpty$1(newConfiguration);
+      } else {
+        _this._evaluate0$_configuration = adjustedConfiguration;
+        _this._evaluate0$_loadModule$4(t3, _s8_, node, new A._EvaluateVisitor_visitForwardRule_closure4(_this, node));
+        _this._evaluate0$_configuration = oldConfiguration;
+      }
+      return null;
+    },
+    _evaluate0$_addForwardConfiguration$2(configuration, node) {
+      var t2, t3, _i, variable, t4, oldValue, t5, variableNodeWithSpan, _null = null,
+        t1 = configuration._configuration0$_values,
+        newValues = A.LinkedHashMap_LinkedHashMap$of(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue_2), type$.String, type$.ConfiguredValue_2);
+      for (t2 = node.configuration, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        variable = t2[_i];
+        if (variable.isGuarded) {
+          t4 = variable.name;
+          oldValue = t1.get$isEmpty(t1) ? _null : t1.remove$1(0, t4);
+          if (oldValue != null)
+            t5 = !oldValue.value.$eq(0, B.C__SassNull0);
+          else {
+            oldValue = _null;
+            t5 = false;
+          }
+          if (t5) {
+            newValues.$indexSet(0, t4, oldValue);
+            continue;
+          }
+        }
+        t4 = variable.expression;
+        variableNodeWithSpan = this._evaluate0$_expressionNode$1(t4);
+        newValues.$indexSet(0, variable.name, new A.ConfiguredValue0(this._evaluate0$_withoutSlash$2(t4.accept$1(this), variableNodeWithSpan), variable.span, variableNodeWithSpan));
+      }
+      if (configuration instanceof A.ExplicitConfiguration0 || t1.get$isEmpty(t1))
+        return new A.ExplicitConfiguration0(node, newValues, _null);
+      else
+        return new A.Configuration0(newValues, _null);
+    },
+    _evaluate0$_registerCommentsForModule$1(module) {
+      var _this = this, _s5_ = "_root",
+        t1 = _this._evaluate0$__root;
+      if (t1 == null)
+        return;
+      if (_this._evaluate0$_assertInModule$2(t1, _s5_).children.get$length(0) === 0 || !module.get$transitivelyContainsCss())
+        return;
+      t1 = _this._evaluate0$_preModuleComments;
+      if (t1 == null)
+        t1 = _this._evaluate0$_preModuleComments = A.LinkedHashMap_LinkedHashMap$_empty(type$.Module_Callable_2, type$.List_CssComment_2);
+      J.addAll$1$ax(t1.putIfAbsent$2(module, new A._EvaluateVisitor__registerCommentsForModule_closure1()), new A.UnmodifiableListView(J.cast$1$0$ax(_this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).children._collection$_source, type$.CssComment_2), type$.UnmodifiableListView_CssComment_2));
+      _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).clearChildren$0();
+      _this._evaluate0$__endOfImports = 0;
+    },
+    _evaluate0$_removeUsedConfiguration$3$except(upstream, downstream, except) {
+      var t1, t2, t3, t4, _i, $name;
+      for (t1 = upstream._configuration0$_values, t2 = J.toList$0$ax(t1.get$keys(t1)), t3 = t2.length, t4 = downstream._configuration0$_values, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        $name = t2[_i];
+        if (except.contains$1(0, $name))
+          continue;
+        if (!t4.containsKey$1($name))
+          if (!t1.get$isEmpty(t1))
+            t1.remove$1(0, $name);
+      }
+    },
+    _evaluate0$_assertConfigurationIsEmpty$2$nameInError(configuration, nameInError) {
+      var t1, _0_0, $name, value;
+      if (!(configuration instanceof A.ExplicitConfiguration0))
+        return;
+      t1 = configuration._configuration0$_values;
+      if (t1.get$isEmpty(t1))
+        return;
+      t1 = A.MapExtensions_get_pairs0(new A.UnmodifiableMapView(t1, type$.UnmodifiableMapView_String_ConfiguredValue_2), type$.String, type$.ConfiguredValue_2);
+      _0_0 = t1.get$first(t1);
+      $name = _0_0._0;
+      value = _0_0._1;
+      t1 = nameInError ? "$" + $name + string$.x20was_n : string$.This_v;
+      throw A.wrapException(this._evaluate0$_exception$2(t1, value.configurationSpan));
+    },
+    _evaluate0$_assertConfigurationIsEmpty$1(configuration) {
+      return this._evaluate0$_assertConfigurationIsEmpty$2$nameInError(configuration, false);
+    },
+    visitFunctionRule$1(node) {
+      var t1 = this._evaluate0$_environment,
+        t2 = t1.closure$0(),
+        t3 = this._evaluate0$_inDependency,
+        t4 = t1._environment0$_functions,
+        index = t4.length - 1,
+        t5 = node.name;
+      t1._environment0$_functionIndices.$indexSet(0, t5, index);
+      J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable0(node, t2, t3, type$.UserDefinedCallable_Environment_2));
+      return null;
+    },
+    visitIfRule$1(node) {
+      var t1, t2, _i, clauseToCheck,
+        clause = node.lastClause;
+      for (t1 = node.clauses, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        clauseToCheck = t1[_i];
+        if (clauseToCheck.expression.accept$1(this).get$isTruthy()) {
+          clause = clauseToCheck;
+          break;
+        }
+      }
+      return A.NullableExtension_andThen0(clause, new A._EvaluateVisitor_visitIfRule_closure1(this));
+    },
+    visitImportRule$1(node) {
+      var t1, t2, t3, t4, t5, t6, _i, $import, t7, _0_0, $self, t8, _this = this,
+        _s8_ = "__parent",
+        _s5_ = "_root",
+        _s13_ = "_endOfImports";
+      for (t1 = node.imports, t2 = t1.length, t3 = type$.CssValue_String_2, t4 = _this.get$_evaluate0$_interpolationToValue(), t5 = type$.StaticImport_2, t6 = type$.JSArray_ModifiableCssImport_2, _i = 0; _i < t2; ++_i) {
+        $import = t1[_i];
+        if ($import instanceof A.DynamicImport0)
+          _this._evaluate0$_visitDynamicImport$1($import);
+        else {
+          t5._as($import);
+          t7 = $import.url;
+          _0_0 = _this._evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(t7, false, false);
+          $self = $import.modifiers;
+          t8 = $self == null ? null : t4.call$1($self);
+          node = new A.ModifiableCssImport0(new A.CssValue0(_0_0._0, t7.span, t3), t8, $import.span);
+          if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_) !== _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_))
+            _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).addChild$1(node);
+          else if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) === J.get$length$asx(_this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).children._collection$_source)) {
+            t7 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_);
+            node._node$_parent = t7;
+            t7 = t7._node$_children;
+            node._node$_indexInParent = t7.length;
+            t7.push(node);
+            _this._evaluate0$__endOfImports = _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) + 1;
+          } else {
+            t7 = _this._evaluate0$_outOfOrderImports;
+            (t7 == null ? _this._evaluate0$_outOfOrderImports = A._setArrayType([], t6) : t7).push(node);
+          }
+        }
+      }
+      return null;
+    },
+    _evaluate0$_visitDynamicImport$1($import) {
+      return this._evaluate0$_withStackFrame$3("@import", $import, new A._EvaluateVisitor__visitDynamicImport_closure1(this, $import));
+    },
+    _evaluate0$_loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, forImport) {
+      var _0_0, importCache, _1_0, importer, canonicalUrl, originalUrl, isDependency, _2_0, stylesheet, _3_0, result, error, stackTrace, error0, stackTrace0, message, t1, t2, t3, t4, exception, message0, _this = this,
+        _s11_ = "_stylesheet";
+      baseUrl = baseUrl;
+      try {
+        _this._evaluate0$_importSpan = span;
+        _0_0 = _this._evaluate0$_importCache;
+        importCache = null;
+        if (_0_0 != null) {
+          importCache = _0_0;
+          if (baseUrl == null)
+            baseUrl = _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).span.file.url;
+          _1_0 = J.canonicalize$4$baseImporter$baseUrl$forImport$x(importCache, A.Uri_parse(url), _this._evaluate0$_importer, baseUrl, forImport);
+          importer = null;
+          canonicalUrl = null;
+          originalUrl = null;
+          if (type$.Record_3_nullable_Object_and_nullable_Object_and_nullable_Object_originalUrl._is(_1_0)) {
+            importer = _1_0._0;
+            canonicalUrl = _1_0._1;
+            originalUrl = _1_0._2;
+            _this._evaluate0$_loadedUrls.add$1(0, canonicalUrl);
+            isDependency = _this._evaluate0$_inDependency || !J.$eq$(importer, _this._evaluate0$_importer);
+            t1 = importCache;
+            t2 = importer;
+            t3 = canonicalUrl;
+            t4 = originalUrl;
+            _2_0 = t1.importCanonical$4$originalUrl$quiet(t2, t3, t4, _this._evaluate0$_quietDeps && isDependency);
+            stylesheet = null;
+            if (_2_0 != null) {
+              stylesheet = _2_0;
+              t1 = stylesheet;
+              t2 = importer;
+              return new A._Record_3_importer_isDependency(t1, t2, isDependency);
+            }
+          }
+        }
+        if (_this._nodeImporter != null) {
+          t1 = baseUrl;
+          _3_0 = _this._importLikeNode$3(url, t1 == null ? _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).span.file.url : t1, forImport);
+          result = null;
+          if (_3_0 != null) {
+            result = _3_0;
+            t1 = _this._evaluate0$_loadedUrls;
+            A.NullableExtension_andThen0(result._0.span.file.url, t1.get$add(t1));
+            t1 = result;
+            return t1;
+          }
+        }
+        t1 = B.JSString_methods.startsWith$1(url, "package:");
+        if (t1)
+          throw A.wrapException(string$.x22packa);
+        else
+          throw A.wrapException("Can't find stylesheet to import.");
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0)
+          throw exception;
+        else if (t1 instanceof A.ArgumentError) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace0(_this._evaluate0$_exception$1(J.toString$0$(error)), error, stackTrace);
+        } else {
+          error0 = t1;
+          stackTrace0 = A.getTraceFromException(exception);
+          message = null;
+          try {
+            message = A._asString(J.get$message$x(error0));
+          } catch (exception) {
+            message0 = J.toString$0$(error0);
+            message = message0;
+          }
+          A.throwWithTrace0(_this._evaluate0$_exception$1(message), error0, stackTrace0);
+        }
+      } finally {
+        _this._evaluate0$_importSpan = null;
+      }
+    },
+    _evaluate0$_loadStylesheet$3$baseUrl(url, span, baseUrl) {
+      return this._evaluate0$_loadStylesheet$4$baseUrl$forImport(url, span, baseUrl, false);
+    },
+    _evaluate0$_loadStylesheet$3$forImport(url, span, forImport) {
+      return this._evaluate0$_loadStylesheet$4$baseUrl$forImport(url, span, null, forImport);
+    },
+    _importLikeNode$3(originalUrl, previous, forImport) {
+      var isDependency, url, t2, _this = this,
+        t1 = _this._nodeImporter,
+        result = t1.loadRelative$3(originalUrl, previous, forImport);
+      if (result != null)
+        isDependency = _this._evaluate0$_inDependency;
+      else {
+        result = t1.load$3(0, originalUrl, previous, forImport);
+        if (result == null)
+          return null;
+        isDependency = true;
+      }
+      url = result._1;
+      t1 = B.JSString_methods.startsWith$1(url, "file") ? A.Syntax_forPath0(url) : B.Syntax_SCSS_scss0;
+      t2 = _this._evaluate0$_quietDeps && isDependency ? $.$get$Logger_quiet0() : _this._evaluate0$_logger;
+      return new A._Record_3_importer_isDependency(A.Stylesheet_Stylesheet$parse0(result._0, t1, t2, url), null, isDependency);
+    },
+    _evaluate0$_applyMixin$5(mixin, contentCallable, $arguments, nodeWithSpan, nodeWithSpanWithoutContent) {
+      var t1, _0_0, _1_8, t2, _this = this,
+        _s37_ = "Mixin doesn't accept a content block.",
+        _s10_ = "invocation";
+      $label0$0: {
+        if (mixin == null)
+          throw A.wrapException(_this._evaluate0$_exception$2("Undefined mixin.", nodeWithSpan.get$span(nodeWithSpan)));
+        t1 = mixin instanceof A.BuiltInCallable0;
+        if (t1 && !mixin.acceptsContent && contentCallable != null) {
+          t1 = _this._evaluate0$_evaluateArguments$1($arguments)._values;
+          _0_0 = mixin.callbackFor$2(t1[2].length, new A.MapKeySet(t1[0], type$.MapKeySet_String));
+          throw A.wrapException(A.MultiSpanSassRuntimeException$0(_s37_, nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), _s10_, A.LinkedHashMap_LinkedHashMap$_literal([_0_0._0.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), _this._evaluate0$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+        }
+        if (t1) {
+          _this._evaluate0$_environment.withContent$2(contentCallable, new A._EvaluateVisitor__applyMixin_closure3(_this, $arguments, mixin, nodeWithSpanWithoutContent));
+          break $label0$0;
+        }
+        t1 = type$.UserDefinedCallable_Environment_2._is(mixin);
+        if (t1) {
+          _1_8 = mixin.declaration;
+          if (_1_8 instanceof A.MixinRule0)
+            t2 = !type$.MixinRule_2._as(_1_8).get$hasContent() && contentCallable != null;
+          else
+            t2 = false;
+        } else
+          t2 = false;
+        if (t2)
+          throw A.wrapException(A.MultiSpanSassRuntimeException$0(_s37_, nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent), _s10_, A.LinkedHashMap_LinkedHashMap$_literal([mixin.declaration.$arguments.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), _this._evaluate0$_stackTrace$1(nodeWithSpanWithoutContent.get$span(nodeWithSpanWithoutContent)), null));
+        if (t1) {
+          _this._evaluate0$_runUserDefinedCallable$1$4($arguments, mixin, nodeWithSpanWithoutContent, new A._EvaluateVisitor__applyMixin_closure4(_this, contentCallable, mixin, nodeWithSpanWithoutContent), type$.Null);
+          break $label0$0;
+        }
+        throw A.wrapException(A.UnsupportedError$("Unknown callable type " + mixin.toString$0(0) + "."));
+      }
+    },
+    visitIncludeRule$1(node) {
+      var _this = this,
+        mixin = _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitIncludeRule_closure5(_this, node));
+      if (B.JSString_methods.startsWith$1(node.originalName, "--") && mixin instanceof A.UserDefinedCallable0 && !B.JSString_methods.startsWith$1(mixin.declaration.originalName, "--"))
+        _this._evaluate0$_warn$3(string$.Sass__m, node.get$nameSpan(), B.Deprecation_qBS);
+      _this._evaluate0$_applyMixin$5(mixin, A.NullableExtension_andThen0(node.content, new A._EvaluateVisitor_visitIncludeRule_closure6(_this)), node.$arguments, node, new A._FakeAstNode0(new A._EvaluateVisitor_visitIncludeRule_closure7(node)));
+      return null;
+    },
+    visitMixinRule$1(node) {
+      var t1 = this._evaluate0$_environment,
+        t2 = t1.closure$0(),
+        t3 = this._evaluate0$_inDependency,
+        t4 = t1._environment0$_mixins,
+        index = t4.length - 1,
+        t5 = node.name;
+      t1._environment0$_mixinIndices.$indexSet(0, t5, index);
+      J.$indexSet$ax(t4[index], t5, new A.UserDefinedCallable0(node, t2, t3, type$.UserDefinedCallable_Environment_2));
+      return null;
+    },
+    visitLoudComment$1(node) {
+      var t1, _this = this,
+        _s8_ = "__parent",
+        _s13_ = "_endOfImports";
+      if (_this._evaluate0$_inFunction)
+        return null;
+      if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_) === _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, "_root") && _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) === J.get$length$asx(_this._evaluate0$_assertInModule$2(_this._evaluate0$__root, "_root").children._collection$_source))
+        _this._evaluate0$__endOfImports = _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) + 1;
+      t1 = node.text;
+      _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).addChild$1(new A.ModifiableCssComment0(_this._evaluate0$_performInterpolation$1(t1), t1.span));
+      return null;
+    },
+    visitMediaRule$1(node) {
+      var _0_0, queries, mergedQueries, t1, mergedSources, t2, t3, _this = this;
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Media_, node.span));
+      _0_0 = _this._evaluate0$_performInterpolationWithMap$2$warnForColor(node.query, true);
+      queries = A.CssMediaQuery_parseList0(_0_0._0, _0_0._1, _this._evaluate0$_logger);
+      mergedQueries = A.NullableExtension_andThen0(_this._evaluate0$_mediaQueries, new A._EvaluateVisitor_visitMediaRule_closure5(_this, queries));
+      t1 = mergedQueries == null;
+      if (!t1 && J.get$isEmpty$asx(mergedQueries))
+        return null;
+      if (t1)
+        mergedSources = B.Set_empty5;
+      else {
+        t2 = _this._evaluate0$_mediaQuerySources;
+        t2.toString;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery_2);
+        t3 = _this._evaluate0$_mediaQueries;
+        t3.toString;
+        t2.addAll$1(0, t3);
+        t2.addAll$1(0, queries);
+        mergedSources = t2;
+      }
+      t1 = t1 ? queries : mergedQueries;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$0(t1, node.span), new A._EvaluateVisitor_visitMediaRule_closure6(_this, mergedQueries, queries, mergedSources, node), node.hasDeclarations, new A._EvaluateVisitor_visitMediaRule_closure7(mergedSources), type$.ModifiableCssMediaRule_2, type$.Null);
+      return null;
+    },
+    _evaluate0$_mergeMediaQueries$2(queries1, queries2) {
+      var t1, t2, t3, t4, _0_0, t5, result,
+        queries = A._setArrayType([], type$.JSArray_CssMediaQuery_2);
+      for (t1 = J.get$iterator$ax(queries1), t2 = J.getInterceptor$ax(queries2); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        for (t4 = t2.get$iterator(queries2); t4.moveNext$0();)
+          $label0$1: {
+            _0_0 = t3.merge$1(t4.get$current(t4));
+            if (B._SingletonCssMediaQueryMergeResult_00 === _0_0)
+              continue;
+            if (B._SingletonCssMediaQueryMergeResult_10 === _0_0)
+              return null;
+            t5 = _0_0 instanceof A.MediaQuerySuccessfulMergeResult0;
+            result = t5 ? _0_0 : null;
+            if (t5)
+              queries.push(result.query);
+            break $label0$1;
+          }
+      }
+      return queries;
+    },
+    visitReturnRule$1(node) {
+      var t1 = node.expression;
+      return this._evaluate0$_withoutSlash$2(t1.accept$1(this), t1);
+    },
+    visitSilentComment$1(node) {
+      return null;
+    },
+    visitStyleRule$1(node) {
+      var t1, _0_0, selectorText, selectorMap, parsedSelector, nest, t2, _i, _1_0, first, t3, rule, oldAtRootExcludingStyleRule, t4, t5, complex, visitor, t6, t7, t8, t9, _this = this, _null = null,
+        _s8_ = "__parent",
+        _s11_ = "_stylesheet";
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Style_n, node.span));
+      else if (_this._evaluate0$_inKeyframes && _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_) instanceof A.ModifiableCssKeyframeBlock0)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Style_k, node.span));
+      t1 = node.selector;
+      _0_0 = _this._evaluate0$_performInterpolationWithMap$2$warnForColor(t1, true);
+      selectorText = _0_0._0;
+      selectorMap = _0_0._1;
+      if (_this._evaluate0$_inKeyframes) {
+        _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$0(new A.CssValue0(A.List_List$unmodifiable(A.KeyframeSelectorParser$0(selectorText, selectorMap, _this._evaluate0$_logger).parse$0(), type$.String), t1.span, type$.CssValue_List_String_2), node.span), new A._EvaluateVisitor_visitStyleRule_closure9(_this, node), node.hasDeclarations, new A._EvaluateVisitor_visitStyleRule_closure10(), type$.ModifiableCssKeyframeBlock_2, type$.Null);
+        return _null;
+      }
+      parsedSelector = A.SelectorList_SelectorList$parse0(selectorText, true, selectorMap, _this._evaluate0$_logger, _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss);
+      t1 = _this._evaluate0$_atRootExcludingStyleRule ? _null : _this._evaluate0$_styleRuleIgnoringAtRoot;
+      t1 = t1 == null ? _null : t1.fromPlainCss;
+      nest = t1 !== true;
+      if (nest) {
+        if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss)
+          for (t1 = parsedSelector.components, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+            _1_0 = t1[_i].leadingCombinators;
+            if (_1_0.length >= 1) {
+              first = _1_0[0];
+              t3 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_);
+              t3 = t3.plainCss;
+            } else {
+              first = _null;
+              t3 = false;
+            }
+            if (t3)
+              throw A.wrapException(_this._evaluate0$_exception$2(string$.Top_lel, first.span));
+          }
+        t1 = _this._evaluate0$_styleRuleIgnoringAtRoot;
+        t1 = t1 == null ? _null : t1.originalSelector;
+        parsedSelector = parsedSelector.nestWithin$3$implicitParent$preserveParentSelectors(t1, !_this._evaluate0$_atRootExcludingStyleRule, _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss);
+      }
+      rule = A.ModifiableCssStyleRule$0(_this._evaluate0$_assertInModule$2(_this._evaluate0$__extensionStore, "_extensionStore").addSelector$2(parsedSelector, _this._evaluate0$_mediaQueries), node.span, _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss, parsedSelector);
+      oldAtRootExcludingStyleRule = _this._evaluate0$_atRootExcludingStyleRule;
+      _this._evaluate0$_atRootExcludingStyleRule = false;
+      t1 = nest ? new A._EvaluateVisitor_visitStyleRule_closure11() : _null;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitStyleRule_closure12(_this, rule, node), node.hasDeclarations, t1, type$.ModifiableCssStyleRule_2, type$.Null);
+      _this._evaluate0$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+      if (!rule.accept$1(B._IsInvisibleVisitor_false_false0))
+        for (t1 = parsedSelector.components, t2 = t1.length, t3 = type$.SourceSpan, t4 = type$.String, t5 = rule.children, _i = 0; _i < t2; ++_i) {
+          complex = t1[_i];
+          if (!complex.accept$1(B._IsBogusVisitor_true0))
+            continue;
+          if (complex.accept$1(B.C__IsUselessVisitor0)) {
+            visitor = A._SerializeVisitor$0(_null, true, _null, true, false, _null, true);
+            complex.accept$1(visitor);
+            _this._evaluate0$_warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0)) + string$.x22x20is_ix20, A.SpanExtensions_trimRight0(complex.span), B.Deprecation_5pG);
+          } else if (complex.leadingCombinators.length !== 0) {
+            if (!_this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss) {
+              visitor = A._SerializeVisitor$0(_null, true, _null, true, false, _null, true);
+              complex.accept$1(visitor);
+              _this._evaluate0$_warn$3('The selector "' + B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0)) + string$.x22x20is_ix0a, A.SpanExtensions_trimRight0(complex.span), B.Deprecation_5pG);
+            }
+          } else {
+            visitor = A._SerializeVisitor$0(_null, true, _null, true, false, _null, true);
+            complex.accept$1(visitor);
+            t6 = B.JSString_methods.trim$0(visitor._serialize0$_buffer.toString$0(0));
+            t7 = complex.accept$1(B._IsBogusVisitor_false0) ? string$.x20It_wi : "";
+            t8 = A.SpanExtensions_trimRight0(complex.span);
+            if (t5.get$length(0) === 0)
+              A.throwExpression(A.IterableElementError_noElement());
+            t9 = J.get$span$z(t5.$index(0, 0));
+            _this._evaluate0$_warn$3('The selector "' + t6 + string$.x22x20is_o + t7 + string$.x0aThis_, new A.MultiSpan0(t8, "invalid selector", A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_literal([t9, "this is not a style rule" + (t5.every$1(t5, new A._EvaluateVisitor_visitStyleRule_closure13()) ? "\n(try converting to a //-style comment)" : "")], t3, t4), t3, t4)), B.Deprecation_5pG);
+          }
+        }
+      if ((_this._evaluate0$_atRootExcludingStyleRule ? _null : _this._evaluate0$_styleRuleIgnoringAtRoot) == null) {
+        t1 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).children;
+        t1 = !t1.get$isEmpty(t1);
+      } else
+        t1 = false;
+      if (t1) {
+        t1 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).children;
+        t1.get$last(t1).isGroupEnd = true;
+      }
+      return _null;
+    },
+    visitSupportsRule$1(node) {
+      var t1, _this = this;
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Suppor, node.span));
+      t1 = node.condition;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssSupportsRule$0(new A.CssValue0(_this._evaluate0$_visitSupportsCondition$1(t1), t1.get$span(t1), type$.CssValue_String_2), node.span), new A._EvaluateVisitor_visitSupportsRule_closure3(_this, node), node.hasDeclarations, new A._EvaluateVisitor_visitSupportsRule_closure4(), type$.ModifiableCssSupportsRule_2, type$.Null);
+      return null;
+    },
+    _evaluate0$_visitSupportsCondition$1(condition) {
+      var t1, _this = this, _box_0 = {};
+      $label0$0: {
+        if (condition instanceof A.SupportsOperation0) {
+          t1 = condition.operator;
+          t1 = _this._evaluate0$_parenthesize$2(condition.left, t1) + " " + t1 + " " + _this._evaluate0$_parenthesize$2(condition.right, t1);
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsNegation0) {
+          t1 = "not " + _this._evaluate0$_parenthesize$1(condition.condition);
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsInterpolation0) {
+          t1 = condition.expression;
+          t1 = _this._evaluate0$_serialize$3$quote(t1.accept$1(_this), t1, false);
+          break $label0$0;
+        }
+        _box_0.declaration = null;
+        if (condition instanceof A.SupportsDeclaration0) {
+          _box_0.declaration = condition;
+          t1 = _this._evaluate0$_withSupportsDeclaration$1(new A._EvaluateVisitor__visitSupportsCondition_closure1(_box_0, _this));
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsFunction0) {
+          t1 = _this._evaluate0$_performInterpolation$1(condition.name) + "(" + _this._evaluate0$_performInterpolation$1(condition.$arguments) + ")";
+          break $label0$0;
+        }
+        if (condition instanceof A.SupportsAnything0) {
+          t1 = "(" + _this._evaluate0$_performInterpolation$1(condition.contents) + ")";
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.ArgumentError$("Unknown supports condition type " + A.getRuntimeTypeOfDartObject(condition).toString$0(0) + ".", null));
+      }
+      return t1;
+    },
+    _evaluate0$_withSupportsDeclaration$1$1(callback) {
+      var t1,
+        oldInSupportsDeclaration = this._evaluate0$_inSupportsDeclaration;
+      this._evaluate0$_inSupportsDeclaration = true;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        this._evaluate0$_inSupportsDeclaration = oldInSupportsDeclaration;
+      }
+    },
+    _evaluate0$_withSupportsDeclaration$1(callback) {
+      return this._evaluate0$_withSupportsDeclaration$1$1(callback, type$.dynamic);
+    },
+    _evaluate0$_parenthesize$2(condition, operator) {
+      var t1;
+      if (!(condition instanceof A.SupportsNegation0))
+        if (condition instanceof A.SupportsOperation0)
+          t1 = operator == null || operator !== condition.operator;
+        else
+          t1 = false;
+      else
+        t1 = true;
+      if (t1)
+        return "(" + this._evaluate0$_visitSupportsCondition$1(condition) + ")";
+      return this._evaluate0$_visitSupportsCondition$1(condition);
+    },
+    _evaluate0$_parenthesize$1(condition) {
+      return this._evaluate0$_parenthesize$2(condition, null);
+    },
+    visitVariableDeclaration$1(node) {
+      var t2, value, _this = this, _null = null, t1 = {};
+      if (node.isGuarded) {
+        if (node.namespace == null && _this._evaluate0$_environment._environment0$_variables.length === 1) {
+          t2 = _this._evaluate0$_configuration._configuration0$_values;
+          t2 = t2.get$isEmpty(t2) ? _null : t2.remove$1(0, node.name);
+          t1.override = null;
+          if (t2 != null) {
+            t1.override = t2;
+            t2 = !t2.value.$eq(0, B.C__SassNull0);
+          } else
+            t2 = false;
+          if (t2) {
+            _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure5(t1, _this, node));
+            return _null;
+          }
+        }
+        value = _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure6(_this, node));
+        if (value != null && !value.$eq(0, B.C__SassNull0))
+          return _null;
+      }
+      if (node.isGlobal && !_this._evaluate0$_environment.globalVariableExists$1(node.name)) {
+        t1 = _this._evaluate0$_environment._environment0$_variables.length === 1 ? string$.As_of_S : string$.As_of_R + A.declarationName0(node.span) + ": null` at the stylesheet root.";
+        _this._evaluate0$_warn$3(t1, node.span, B.Deprecation_W6Z);
+      }
+      t1 = node.expression;
+      _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableDeclaration_closure7(_this, node, _this._evaluate0$_withoutSlash$2(t1.accept$1(_this), t1)));
+      return _null;
+    },
+    visitUseRule$1(node) {
+      var values, _i, variable, t3, variableNodeWithSpan, configuration, _this = this,
+        t1 = node.configuration,
+        t2 = t1.length;
+      if (t2 !== 0) {
+        values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue_2);
+        for (_i = 0; _i < t2; ++_i) {
+          variable = t1[_i];
+          t3 = variable.expression;
+          variableNodeWithSpan = _this._evaluate0$_expressionNode$1(t3);
+          values.$indexSet(0, variable.name, new A.ConfiguredValue0(_this._evaluate0$_withoutSlash$2(t3.accept$1(_this), variableNodeWithSpan), variable.span, variableNodeWithSpan));
+        }
+        configuration = new A.ExplicitConfiguration0(node, values, null);
+      } else
+        configuration = B.Configuration_Map_empty_null0;
+      _this._evaluate0$_loadModule$5$configuration(node.url, "@use", node, new A._EvaluateVisitor_visitUseRule_closure1(_this, node), configuration);
+      _this._evaluate0$_assertConfigurationIsEmpty$1(configuration);
+      return null;
+    },
+    visitWarnRule$1(node) {
+      var _this = this,
+        value = _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitWarnRule_closure1(_this, node)),
+        t1 = value instanceof A.SassString0 ? value._string0$_text : _this._evaluate0$_serialize$2(value, node.expression);
+      _this._evaluate0$_logger.warn$2$trace(0, t1, _this._evaluate0$_stackTrace$1(node.span));
+      return null;
+    },
+    visitWhileRule$1(node) {
+      return this._evaluate0$_environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitWhileRule_closure1(this, node), true, node.hasDeclarations, type$.nullable_Value_2);
+    },
+    visitBinaryOperationExpression$1(node) {
+      var t1, _this = this;
+      if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, "_stylesheet").plainCss) {
+        t1 = node.operator;
+        t1 = t1 !== B.BinaryOperator_wdM0 && t1 !== B.BinaryOperator_U770;
+      } else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(_this._evaluate0$_exception$2("Operators aren't allowed in plain CSS.", node.get$operatorSpan()));
+      return _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitBinaryOperationExpression_closure1(_this, node));
+    },
+    _evaluate0$_slash$3(left, right, node) {
+      var t1, right0, _1_2, _1_1, _null = null,
+        result = left.dividedBy$1(right),
+        _1_2_isSet = left instanceof A.SassNumber0;
+      if (_1_2_isSet) {
+        t1 = type$.SassNumber_2;
+        t1._as(left);
+        if (right instanceof A.SassNumber0) {
+          t1._as(right);
+          t1 = node.allowsSlash && this._evaluate0$_operandAllowsSlash$1(node.left) && this._evaluate0$_operandAllowsSlash$1(node.right);
+          right0 = right;
+          _1_2 = right0;
+        } else {
+          right0 = _null;
+          _1_2 = right;
+          t1 = false;
+        }
+        _1_1 = left;
+      } else {
+        right0 = _null;
+        _1_2 = right0;
+        _1_1 = left;
+        left = _1_2;
+        t1 = false;
+      }
+      if (t1)
+        return type$.SassNumber_2._as(result).withSlash$2(left, right0);
+      if (_1_1 instanceof A.SassNumber0)
+        t1 = (_1_2_isSet ? _1_2 : right) instanceof A.SassNumber0;
+      else
+        t1 = false;
+      if (t1) {
+        this._evaluate0$_warn$3(string$.Using__o + A.S(new A._EvaluateVisitor__slash_recommendation1().call$1(node)) + " or " + A.expressionToCalc0(node).toString$0(0) + string$.x0a_Morex20, node.get$span(0), B.Deprecation_E8a);
+        return result;
+      }
+      return result;
+    },
+    _evaluate0$_operandAllowsSlash$1(node) {
+      var t1;
+      if (node instanceof A.FunctionExpression0)
+        if (node.namespace == null) {
+          t1 = node.name;
+          t1 = B.Set_yHF81.contains$1(0, t1.toLowerCase()) && this._evaluate0$_environment.getFunction$1(t1) == null;
+        } else
+          t1 = false;
+      else
+        t1 = true;
+      return t1;
+    },
+    visitValueExpression$1(node) {
+      return node.value;
+    },
+    visitVariableExpression$1(node) {
+      var result = this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitVariableExpression_closure1(this, node));
+      if (result != null)
+        return result;
+      throw A.wrapException(this._evaluate0$_exception$2("Undefined variable.", node.span));
+    },
+    visitUnaryOperationExpression$1(node) {
+      return this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitUnaryOperationExpression_closure1(node, node.operand.accept$1(this)));
+    },
+    visitBooleanExpression$1(node) {
+      return node.value ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    visitIfExpression$1(node) {
+      var condition, t1, ifTrue, ifFalse, result, _this = this,
+        _0_0 = _this._evaluate0$_evaluateMacroArguments$1(node),
+        positional = _0_0._0,
+        named = _0_0._1;
+      _this._evaluate0$_verifyArguments$4(positional.length, named, $.$get$IfExpression_declaration0(), node);
+      condition = A.ListExtensions_elementAtOrNull(positional, 0);
+      if (condition == null) {
+        t1 = named.$index(0, "condition");
+        t1.toString;
+        condition = t1;
+      }
+      ifTrue = A.ListExtensions_elementAtOrNull(positional, 1);
+      if (ifTrue == null) {
+        t1 = named.$index(0, "if-true");
+        t1.toString;
+        ifTrue = t1;
+      }
+      ifFalse = A.ListExtensions_elementAtOrNull(positional, 2);
+      if (ifFalse == null) {
+        t1 = named.$index(0, "if-false");
+        t1.toString;
+        ifFalse = t1;
+      }
+      result = condition.accept$1(_this).get$isTruthy() ? ifTrue : ifFalse;
+      return _this._evaluate0$_withoutSlash$2(result.accept$1(_this), _this._evaluate0$_expressionNode$1(result));
+    },
+    visitNullExpression$1(node) {
+      return B.C__SassNull0;
+    },
+    visitNumberExpression$1(node) {
+      return A.SassNumber_SassNumber0(node.value, node.unit);
+    },
+    visitParenthesizedExpression$1(node) {
+      var _this = this;
+      return _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, "_stylesheet").plainCss ? A.throwExpression(_this._evaluate0$_exception$2("Parentheses aren't allowed in plain CSS.", node.span)) : node.expression.accept$1(_this);
+    },
+    visitColorExpression$1(node) {
+      return node.value;
+    },
+    visitListExpression$1(node) {
+      var t1 = node.contents;
+      return A.SassList$0(new A.MappedListIterable(t1, new A._EvaluateVisitor_visitListExpression_closure1(this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value0>")), node.separator, node.hasBrackets);
+    },
+    visitMapExpression$1(node) {
+      var t2, t3, _i, t4, key, value, keyValue, valueValue, oldValueSpan,
+        t1 = type$.Value_2,
+        map = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1),
+        keyNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.AstNode_2);
+      for (t2 = node.pairs, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        t4 = t2[_i];
+        key = t4._0;
+        value = t4._1;
+        keyValue = key.accept$1(this);
+        valueValue = value.accept$1(this);
+        if (map.containsKey$1(keyValue)) {
+          t1 = keyNodes.$index(0, keyValue);
+          oldValueSpan = t1 == null ? null : t1.get$span(t1);
+          t1 = key.get$span(key);
+          t2 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (oldValueSpan != null)
+            t2.$indexSet(0, oldValueSpan, "first key");
+          throw A.wrapException(A.MultiSpanSassRuntimeException$0("Duplicate key.", t1, "second key", t2, this._evaluate0$_stackTrace$1(key.get$span(key)), null));
+        }
+        map.$indexSet(0, keyValue, valueValue);
+        keyNodes.$indexSet(0, keyValue, key);
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(map, t1, t1));
+    },
+    visitFunctionExpression$1(node) {
+      var t2, _0_0, t3, t4, oldInFunction, result, _this = this,
+        _s11_ = "_stylesheet",
+        t1 = {},
+        $function = _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss ? null : _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure5(_this, node));
+      t1.$function = $function;
+      if ($function == null) {
+        if (node.namespace != null)
+          throw A.wrapException(_this._evaluate0$_exception$2("Undefined function.", node.span));
+        t2 = node.name;
+        _0_0 = t2.toLowerCase();
+        if ("min" === _0_0 || "max" === _0_0 || "round" === _0_0 || "abs" === _0_0) {
+          t3 = node.$arguments;
+          t4 = t3.named;
+          t3 = t4.get$isEmpty(t4) && t3.rest == null && B.JSArray_methods.every$1(t3.positional, new A._EvaluateVisitor_visitFunctionExpression_closure6());
+        } else
+          t3 = false;
+        if (t3)
+          return _this._evaluate0$_visitCalculation$2$inLegacySassFunction(node, true);
+        if ("calc" === _0_0 || "clamp" === _0_0 || "hypot" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "sqrt" === _0_0 || "exp" === _0_0 || "sign" === _0_0 || "mod" === _0_0 || "rem" === _0_0 || "atan2" === _0_0 || "pow" === _0_0 || "log" === _0_0)
+          return _this._evaluate0$_visitCalculation$1(node);
+        $function = _this._evaluate0$_assertInModule$2(_this._evaluate0$__stylesheet, _s11_).plainCss ? null : _this._evaluate0$_builtInFunctions.$index(0, t2);
+        t2 = t1.$function = $function == null ? new A.PlainCssCallable0(node.originalName) : $function;
+      } else
+        t2 = $function;
+      if (B.JSString_methods.startsWith$1(node.originalName, "--") && t2 instanceof A.UserDefinedCallable0 && !B.JSString_methods.startsWith$1(t2.declaration.originalName, "--"))
+        _this._evaluate0$_warn$3(string$.Sass__ff, node.get$nameSpan(), B.Deprecation_qBS);
+      oldInFunction = _this._evaluate0$_inFunction;
+      _this._evaluate0$_inFunction = true;
+      result = _this._evaluate0$_addErrorSpan$2(node, new A._EvaluateVisitor_visitFunctionExpression_closure7(t1, _this, node));
+      _this._evaluate0$_inFunction = oldInFunction;
+      return result;
+    },
+    _evaluate0$_visitCalculation$2$inLegacySassFunction(node, inLegacySassFunction) {
+      var $arguments, oldCallableNode, t1, _0_0, error, stackTrace, t4, _i, exception, _this = this,
+        t2 = node.$arguments,
+        t3 = t2.named;
+      if (t3.get$isNotEmpty(t3))
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Keywor, node.span));
+      else if (t2.rest != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Rest_a, node.span));
+      _this._evaluate0$_checkCalculationArguments$1(node);
+      t3 = A._setArrayType([], type$.JSArray_Object);
+      for (t2 = t2.positional, t4 = t2.length, _i = 0; _i < t4; ++_i)
+        t3.push(_this._evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction));
+      $arguments = t3;
+      if (_this._evaluate0$_inSupportsDeclaration)
+        return new A.SassCalculation0(node.name, A.List_List$unmodifiable($arguments, type$.Object));
+      oldCallableNode = _this._evaluate0$_callableNode;
+      _this._evaluate0$_callableNode = node;
+      try {
+        t1 = null;
+        t3 = node.name;
+        _0_0 = t3.toLowerCase();
+        $label0$0: {
+          if ("calc" === _0_0) {
+            t1 = A.SassCalculation_calc0(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("sqrt" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("sqrt", J.$index$asx($arguments, 0), A.number2__sqrt$closure(), true);
+            break $label0$0;
+          }
+          if ("sin" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("sin", J.$index$asx($arguments, 0), A.number2__sin$closure(), false);
+            break $label0$0;
+          }
+          if ("cos" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("cos", J.$index$asx($arguments, 0), A.number2__cos$closure(), false);
+            break $label0$0;
+          }
+          if ("tan" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("tan", J.$index$asx($arguments, 0), A.number2__tan$closure(), false);
+            break $label0$0;
+          }
+          if ("asin" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("asin", J.$index$asx($arguments, 0), A.number2__asin$closure(), true);
+            break $label0$0;
+          }
+          if ("acos" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("acos", J.$index$asx($arguments, 0), A.number2__acos$closure(), true);
+            break $label0$0;
+          }
+          if ("atan" === _0_0) {
+            t1 = A.SassCalculation__singleArgument0("atan", J.$index$asx($arguments, 0), A.number2__atan$closure(), true);
+            break $label0$0;
+          }
+          if ("abs" === _0_0) {
+            t1 = A.SassCalculation_abs0(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("exp" === _0_0) {
+            t1 = A.SassCalculation_exp0(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("sign" === _0_0) {
+            t1 = A.SassCalculation_sign0(J.$index$asx($arguments, 0));
+            break $label0$0;
+          }
+          if ("min" === _0_0) {
+            t1 = A.SassCalculation_min0($arguments);
+            break $label0$0;
+          }
+          if ("max" === _0_0) {
+            t1 = A.SassCalculation_max0($arguments);
+            break $label0$0;
+          }
+          if ("hypot" === _0_0) {
+            t1 = A.SassCalculation_hypot0($arguments);
+            break $label0$0;
+          }
+          if ("pow" === _0_0) {
+            t1 = A.SassCalculation_pow0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("atan2" === _0_0) {
+            t1 = A.SassCalculation_atan20(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("log" === _0_0) {
+            t1 = A.SassCalculation_log0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("mod" === _0_0) {
+            t1 = A.SassCalculation_mod0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("rem" === _0_0) {
+            t1 = A.SassCalculation_rem0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1));
+            break $label0$0;
+          }
+          if ("round" === _0_0) {
+            t1 = A.SassCalculation_round0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+            break $label0$0;
+          }
+          if ("clamp" === _0_0) {
+            t1 = A.SassCalculation_clamp0(J.$index$asx($arguments, 0), A.ListExtensions_elementAtOrNull($arguments, 1), A.ListExtensions_elementAtOrNull($arguments, 2));
+            break $label0$0;
+          }
+          t3 = A.UnsupportedError$('Unknown calculation name "' + t3 + '".');
+          t1 = A.throwExpression(t3);
+        }
+        t1 = t1;
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassScriptException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          if (B.JSString_methods.contains$1(error.message, "compatible"))
+            _this._evaluate0$_verifyCompatibleNumbers$2($arguments, t2);
+          A.throwWithTrace0(_this._evaluate0$_exception$2(error.message, node.span), error, stackTrace);
+        } else
+          throw exception;
+      } finally {
+        _this._evaluate0$_callableNode = oldCallableNode;
+      }
+    },
+    _evaluate0$_visitCalculation$1(node) {
+      return this._evaluate0$_visitCalculation$2$inLegacySassFunction(node, false);
+    },
+    _evaluate0$_checkCalculationArguments$1(node) {
+      var t1, _0_0,
+        check = new A._EvaluateVisitor__checkCalculationArguments_check1(this, node);
+      $label0$0: {
+        t1 = node.name;
+        _0_0 = t1.toLowerCase();
+        if ("calc" === _0_0 || "sqrt" === _0_0 || "sin" === _0_0 || "cos" === _0_0 || "tan" === _0_0 || "asin" === _0_0 || "acos" === _0_0 || "atan" === _0_0 || "abs" === _0_0 || "exp" === _0_0 || "sign" === _0_0) {
+          check.call$1(1);
+          break $label0$0;
+        }
+        if ("min" === _0_0 || "max" === _0_0 || "hypot" === _0_0) {
+          check.call$0();
+          break $label0$0;
+        }
+        if ("pow" === _0_0 || "atan2" === _0_0 || "log" === _0_0 || "mod" === _0_0 || "rem" === _0_0) {
+          check.call$1(2);
+          break $label0$0;
+        }
+        if ("round" === _0_0 || "clamp" === _0_0) {
+          check.call$1(3);
+          break $label0$0;
+        }
+        throw A.wrapException(A.UnsupportedError$('Unknown calculation name "' + t1 + '".'));
+      }
+    },
+    _evaluate0$_verifyCompatibleNumbers$2(args, nodesWithSpans) {
+      var i, t1, _0_0, arg, number1, j, number2;
+      for (i = 0; t1 = args.length, i < t1; ++i) {
+        _0_0 = args[i];
+        if (_0_0 instanceof A.SassNumber0) {
+          t1 = _0_0.get$hasComplexUnits();
+          arg = _0_0;
+        } else {
+          arg = null;
+          t1 = false;
+        }
+        if (t1)
+          throw A.wrapException(this._evaluate0$_exception$2("Number " + A.S(arg) + " isn't compatible with CSS calculations.", J.get$span$z(nodesWithSpans[i])));
+      }
+      for (i = 0; i < t1 - 1; ++i) {
+        number1 = args[i];
+        if (!(number1 instanceof A.SassNumber0))
+          continue;
+        for (j = i + 1; t1 = args.length, j < t1; ++j) {
+          number2 = args[j];
+          if (!(number2 instanceof A.SassNumber0))
+            continue;
+          if (number1.hasPossiblyCompatibleUnits$1(number2))
+            continue;
+          throw A.wrapException(A.MultiSpanSassRuntimeException$0(number1.toString$0(0) + " and " + number2.toString$0(0) + " are incompatible.", J.get$span$z(nodesWithSpans[i]), number1.toString$0(0), A.LinkedHashMap_LinkedHashMap$_literal([J.get$span$z(nodesWithSpans[j]), number2.toString$0(0)], type$.FileSpan, type$.String), this._evaluate0$_stackTrace$1(J.get$span$z(nodesWithSpans[i])), null));
+        }
+      }
+    },
+    _evaluate0$_visitCalculationExpression$2$inLegacySassFunction(node, inLegacySassFunction) {
+      var result, t2, _0_0, _1_0, t3, _i, i, _this = this, _null = null, _box_0 = {},
+        t1 = node instanceof A.ParenthesizedExpression0,
+        inner = t1 ? node.expression : _null;
+      if (t1) {
+        result = _this._evaluate0$_visitCalculationExpression$2$inLegacySassFunction(inner, inLegacySassFunction);
+        return result instanceof A.SassString0 ? new A.SassString0("(" + result._string0$_text + ")", false) : result;
+      }
+      if (node instanceof A.StringExpression0 && node.accept$1(new A._IsCalculationSafeVisitor0())) {
+        t1 = node.text;
+        t2 = t1.get$asPlain();
+        _0_0 = t2 == null ? _null : t2.toLowerCase();
+        $label0$0: {
+          if ("pi" === _0_0) {
+            t1 = A.SassNumber_SassNumber0(3.141592653589793, _null);
+            break $label0$0;
+          }
+          if ("e" === _0_0) {
+            t1 = A.SassNumber_SassNumber0(2.718281828459045, _null);
+            break $label0$0;
+          }
+          if ("infinity" === _0_0) {
+            t1 = A.SassNumber_SassNumber0(1 / 0, _null);
+            break $label0$0;
+          }
+          if ("-infinity" === _0_0) {
+            t1 = A.SassNumber_SassNumber0(-1 / 0, _null);
+            break $label0$0;
+          }
+          if ("nan" === _0_0) {
+            t1 = A.SassNumber_SassNumber0(0 / 0, _null);
+            break $label0$0;
+          }
+          t1 = new A.SassString0(_this._evaluate0$_performInterpolation$1(t1), false);
+          break $label0$0;
+        }
+        return t1;
+      }
+      _box_0.right = _box_0.left = _box_0.operator = null;
+      t1 = node instanceof A.BinaryOperationExpression0;
+      if (t1) {
+        _box_0.operator = node.operator;
+        _box_0.left = node.left;
+        _box_0.right = node.right;
+      }
+      if (t1) {
+        _this._evaluate0$_checkWhitespaceAroundCalculationOperator$1(node);
+        return _this._evaluate0$_addExceptionSpan$2(node, new A._EvaluateVisitor__visitCalculationExpression_closure1(_box_0, _this, node, inLegacySassFunction));
+      }
+      if (node instanceof A.NumberExpression0 || node instanceof A.VariableExpression0 || node instanceof A.FunctionExpression0 || node instanceof A.IfExpression0) {
+        _1_0 = node.accept$1(_this);
+        $label1$1: {
+          if (_1_0 instanceof A.SassNumber0) {
+            t1 = _1_0;
+            break $label1$1;
+          }
+          if (_1_0 instanceof A.SassCalculation0) {
+            t1 = _1_0;
+            break $label1$1;
+          }
+          if (_1_0 instanceof A.SassString0) {
+            t1 = !_1_0._string0$_hasQuotes;
+            result = _1_0;
+          } else {
+            result = _null;
+            t1 = false;
+          }
+          if (t1) {
+            t1 = result;
+            break $label1$1;
+          }
+          t1 = A.throwExpression(_this._evaluate0$_exception$2("Value " + _1_0.toString$0(0) + " can't be used in a calculation.", node.get$span(node)));
+        }
+        return t1;
+      }
+      if (node instanceof A.ListExpression0 && !node.hasBrackets && B.ListSeparator_nbm0 === node.separator && node.contents.length >= 2) {
+        t1 = A._setArrayType([], type$.JSArray_Object);
+        for (t2 = node.contents, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t1.push(_this._evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2[_i], inLegacySassFunction));
+        _this._evaluate0$_checkAdjacentCalculationValues$2(t1, node);
+        for (i = 0; i < t1.length; ++i) {
+          t3 = t1[i];
+          if (t3 instanceof A.CalculationOperation0 && t2[i] instanceof A.ParenthesizedExpression0)
+            t1[i] = new A.SassString0("(" + A.S(t3) + ")", false);
+        }
+        return new A.SassString0(B.JSArray_methods.join$1(t1, " "), false);
+      }
+      throw A.wrapException(_this._evaluate0$_exception$2(string$.This_e, node.get$span(node)));
+    },
+    _evaluate0$_checkWhitespaceAroundCalculationOperator$1(node) {
+      var t2, t3, t4, textBetweenOperands, first, last,
+        t1 = node.operator;
+      if (t1 !== B.BinaryOperator_u150 && t1 !== B.BinaryOperator_SjO0)
+        return;
+      t1 = node.left;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t3 = node.right;
+      t4 = t3.get$span(t3);
+      if (t2 !== t4.get$file(t4))
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$end(t2);
+      t4 = t3.get$span(t3);
+      if (t2.offset >= t4.get$start(t4).offset)
+        return;
+      t2 = t1.get$span(t1);
+      t2 = t2.get$file(t2);
+      t1 = t1.get$span(t1);
+      t1 = t1.get$end(t1);
+      t3 = t3.get$span(t3);
+      textBetweenOperands = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2._decodedChars, t1.offset, t3.get$start(t3).offset), 0, null);
+      first = textBetweenOperands.charCodeAt(0);
+      last = textBetweenOperands.charCodeAt(textBetweenOperands.length - 1);
+      if (first === 32 || first === 9 || first === 10 || first === 13 || first === 12 || first === 47)
+        t1 = !(last === 32 || last === 9 || last === 10 || last === 13 || last === 12 || last === 47);
+      else
+        t1 = true;
+      if (t1)
+        throw A.wrapException(this._evaluate0$_exception$2(string$.x22x2b__an, node.get$operatorSpan()));
+    },
+    _evaluate0$_binaryOperatorToCalculationOperator$2(operator, node) {
+      var t1;
+      $label0$0: {
+        if (B.BinaryOperator_u150 === operator) {
+          t1 = B.CalculationOperator_g2q0;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_SjO0 === operator) {
+          t1 = B.CalculationOperator_CxF0;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_2No0 === operator) {
+          t1 = B.CalculationOperator_1710;
+          break $label0$0;
+        }
+        if (B.BinaryOperator_U770 === operator) {
+          t1 = B.CalculationOperator_Qf10;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(this._evaluate0$_exception$2(string$.This_o, node.get$operatorSpan()));
+      }
+      return t1;
+    },
+    _evaluate0$_checkAdjacentCalculationValues$2(elements, node) {
+      var t1, i, t2, previous, current, previousNode, currentNode, _0_2;
+      for (t1 = elements.length, i = 1; i < t1; ++i) {
+        t2 = i - 1;
+        previous = elements[t2];
+        current = elements[i];
+        if (previous instanceof A.SassString0 || current instanceof A.SassString0)
+          continue;
+        t1 = node.contents;
+        previousNode = t1[t2];
+        currentNode = t1[i];
+        if (currentNode instanceof A.UnaryOperationExpression0) {
+          _0_2 = currentNode.operator;
+          if (B.UnaryOperator_AiQ0 !== _0_2)
+            t1 = B.UnaryOperator_cLp0 === _0_2;
+          else
+            t1 = true;
+        } else
+          t1 = false;
+        if (!t1)
+          t1 = currentNode instanceof A.NumberExpression0 && currentNode.value < 0;
+        else
+          t1 = true;
+        if (t1)
+          throw A.wrapException(this._evaluate0$_exception$2(string$.x22x2b__an, A.FileSpanExtension_subspan(currentNode.get$span(currentNode), 0, 1)));
+        else
+          throw A.wrapException(this._evaluate0$_exception$2("Missing math operator.", previousNode.get$span(previousNode).expand$1(0, currentNode.get$span(currentNode))));
+      }
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      var result, _this = this,
+        t1 = _this._evaluate0$_performInterpolation$1(node.name),
+        oldInFunction = _this._evaluate0$_inFunction;
+      _this._evaluate0$_inFunction = true;
+      result = _this._evaluate0$_addErrorSpan$2(node, new A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure1(_this, node, new A.PlainCssCallable0(t1)));
+      _this._evaluate0$_inFunction = oldInFunction;
+      return result;
+    },
+    _evaluate0$_runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, run, $V) {
+      var oldCallable, result, _this = this,
+        evaluated = _this._evaluate0$_evaluateArguments$1($arguments),
+        $name = callable.declaration.name;
+      if ($name !== "@content")
+        $name += "()";
+      oldCallable = _this._evaluate0$_currentCallable;
+      _this._evaluate0$_currentCallable = callable;
+      result = _this._evaluate0$_withStackFrame$3($name, nodeWithSpan, new A._EvaluateVisitor__runUserDefinedCallable_closure1(_this, callable, evaluated, nodeWithSpan, run, $V));
+      _this._evaluate0$_currentCallable = oldCallable;
+      return result;
+    },
+    _evaluate0$_runFunctionCallable$3($arguments, callable, nodeWithSpan) {
+      var buffer, first, argument, restArg, rest, error, t1, t2, _i, t3, t4, exception, _this = this;
+      if (callable instanceof A.BuiltInCallable0)
+        return _this._evaluate0$_withoutSlash$2(_this._evaluate0$_runBuiltInCallable$3($arguments, callable, nodeWithSpan), nodeWithSpan);
+      else if (type$.UserDefinedCallable_Environment_2._is(callable))
+        return _this._evaluate0$_runUserDefinedCallable$1$4($arguments, callable, nodeWithSpan, new A._EvaluateVisitor__runFunctionCallable_closure1(_this, callable), type$.Value_2);
+      else if (callable instanceof A.PlainCssCallable0) {
+        t1 = $arguments.named;
+        if (t1.get$isNotEmpty(t1) || $arguments.keywordRest != null)
+          throw A.wrapException(_this._evaluate0$_exception$2(string$.Plain_, nodeWithSpan.get$span(nodeWithSpan)));
+        buffer = new A.StringBuffer(callable.name + "(");
+        try {
+          first = true;
+          for (t1 = $arguments.positional, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+            argument = t1[_i];
+            if (first)
+              first = false;
+            else
+              buffer._contents += ", ";
+            t3 = buffer;
+            t4 = argument;
+            t4 = _this._evaluate0$_serialize$3$quote(t4.accept$1(_this), t4, true);
+            t3._contents += t4;
+          }
+          restArg = $arguments.rest;
+          if (restArg != null) {
+            rest = restArg.accept$1(_this);
+            if (!first)
+              buffer._contents += ", ";
+            t1 = buffer;
+            t2 = _this._evaluate0$_serialize$2(rest, restArg);
+            t1._contents += t2;
+          }
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (type$.SassRuntimeException_2._is(t1)) {
+            error = t1;
+            if (!B.JSString_methods.endsWith$1(error._span_exception$_message, "isn't a valid CSS value."))
+              throw exception;
+            throw A.wrapException(A.MultiSpanSassRuntimeException$0(error._span_exception$_message, J.get$span$z(error), "value", A.LinkedHashMap_LinkedHashMap$_literal([nodeWithSpan.get$span(nodeWithSpan), "unknown function treated as plain CSS"], type$.FileSpan, type$.String), J.get$trace$z(error), null));
+          } else
+            throw exception;
+        }
+        t1 = buffer;
+        t2 = A.Primitives_stringFromCharCode(41);
+        t1._contents += t2;
+        t2 = buffer._contents;
+        return new A.SassString0(t2.charCodeAt(0) == 0 ? t2 : t2, false);
+      } else
+        throw A.wrapException(A.ArgumentError$("Unknown callable type " + J.get$runtimeType$(callable).toString$0(0) + ".", null));
+    },
+    _evaluate0$_runBuiltInCallable$3($arguments, callable, nodeWithSpan) {
+      var result, error, stackTrace, message, namedSet, _0_0, declaredArguments, i, t1, argument, t2, t3, rest, argumentList, exception, message0, _this = this, _box_0 = {},
+        evaluated = _this._evaluate0$_evaluateArguments$1($arguments),
+        oldCallableNode = _this._evaluate0$_callableNode;
+      _this._evaluate0$_callableNode = nodeWithSpan;
+      namedSet = new A.MapKeySet(evaluated._values[0], type$.MapKeySet_String);
+      _box_0.callback = _box_0.overload = null;
+      _0_0 = callable.callbackFor$2(evaluated._values[2].length, namedSet);
+      _box_0.overload = _0_0._0;
+      _box_0.callback = _0_0._1;
+      _this._evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure5(_box_0, evaluated, namedSet));
+      declaredArguments = _box_0.overload.$arguments;
+      for (i = evaluated._values[2].length, t1 = declaredArguments.length; i < t1; ++i) {
+        argument = declaredArguments[i];
+        t2 = evaluated._values[2];
+        t3 = evaluated._values[0].remove$1(0, argument.name);
+        if (t3 == null) {
+          t3 = argument.defaultValue;
+          t3 = _this._evaluate0$_withoutSlash$2(t3.accept$1(_this), t3);
+        }
+        t2.push(t3);
+      }
+      if (_box_0.overload.restArgument != null) {
+        if (evaluated._values[2].length > t1) {
+          rest = B.JSArray_methods.sublist$1(evaluated._values[2], t1);
+          B.JSArray_methods.removeRange$2(evaluated._values[2], t1, evaluated._values[2].length);
+        } else
+          rest = B.List_empty19;
+        t1 = evaluated._values[0];
+        argumentList = A.SassArgumentList$0(rest, t1, evaluated._values[4] === B.ListSeparator_undecided_null_undecided0 ? B.ListSeparator_ECn0 : evaluated._values[4]);
+        evaluated._values[2].push(argumentList);
+      } else
+        argumentList = null;
+      result = null;
+      try {
+        result = _this._evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__runBuiltInCallable_closure6(_box_0, evaluated));
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0)
+          throw exception;
+        else {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          message = null;
+          try {
+            message = A._asString(J.get$message$x(error));
+          } catch (exception) {
+            message0 = J.toString$0$(error);
+            message = message0;
+          }
+          A.throwWithTrace0(_this._evaluate0$_exception$2(message, nodeWithSpan.get$span(nodeWithSpan)), error, stackTrace);
+        }
+      }
+      _this._evaluate0$_callableNode = oldCallableNode;
+      if (argumentList == null)
+        return result;
+      if (evaluated._values[0].__js_helper$_length === 0)
+        return result;
+      if (argumentList._argument_list$_wereKeywordsAccessed)
+        return result;
+      throw A.wrapException(A.MultiSpanSassRuntimeException$0("No " + A.pluralize0("argument", evaluated._values[0].get$keys(0).get$length(0), null) + " named " + A.toSentence0(evaluated._values[0].get$keys(0).map$1$1(0, new A._EvaluateVisitor__runBuiltInCallable_closure7(), type$.Object), "or") + ".", nodeWithSpan.get$span(nodeWithSpan), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([_box_0.overload.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), _this._evaluate0$_stackTrace$1(nodeWithSpan.get$span(nodeWithSpan)), null));
+    },
+    _evaluate0$_evaluateArguments$1($arguments) {
+      var t1, t2, _i, expression, nodeForSpan, named, namedNodes, t3, t4, $name, value, restArgs, rest, restNodeForSpan, t5, separator, keywordRestArgs, keywordRest, keywordRestNodeForSpan, _this = this,
+        positional = A._setArrayType([], type$.JSArray_Value_2),
+        positionalNodes = A._setArrayType([], type$.JSArray_AstNode_2);
+      for (t1 = $arguments.positional, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        expression = t1[_i];
+        nodeForSpan = _this._evaluate0$_expressionNode$1(expression);
+        positional.push(_this._evaluate0$_withoutSlash$2(expression.accept$1(_this), nodeForSpan));
+        positionalNodes.push(nodeForSpan);
+      }
+      t1 = type$.String;
+      named = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Value_2);
+      t2 = type$.AstNode_2;
+      namedNodes = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      for (t3 = A.MapExtensions_get_pairs0($arguments.named, t1, type$.Expression_2), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        $name = t4._0;
+        value = t4._1;
+        nodeForSpan = _this._evaluate0$_expressionNode$1(value);
+        named.$indexSet(0, $name, _this._evaluate0$_withoutSlash$2(value.accept$1(_this), nodeForSpan));
+        namedNodes.$indexSet(0, $name, nodeForSpan);
+      }
+      restArgs = $arguments.rest;
+      if (restArgs == null)
+        return new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, B.ListSeparator_undecided_null_undecided0]);
+      rest = restArgs.accept$1(_this);
+      restNodeForSpan = _this._evaluate0$_expressionNode$1(restArgs);
+      if (rest instanceof A.SassMap0) {
+        _this._evaluate0$_addRestMap$4(named, rest, restArgs, new A._EvaluateVisitor__evaluateArguments_closure7());
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t4 = rest._map0$_contents, t4 = J.get$iterator$ax(t4.get$keys(t4)), t5 = type$.SassString_2; t4.moveNext$0();)
+          t3.$indexSet(0, t5._as(t4.get$current(t4))._string0$_text, restNodeForSpan);
+        namedNodes.addAll$1(0, t3);
+        separator = B.ListSeparator_undecided_null_undecided0;
+      } else if (rest instanceof A.SassList0) {
+        t3 = rest._list1$_contents;
+        B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t3, new A._EvaluateVisitor__evaluateArguments_closure8(_this, restNodeForSpan), A._arrayInstanceType(t3)._eval$1("MappedListIterable<1,Value0>")));
+        B.JSArray_methods.addAll$1(positionalNodes, A.List_List$filled(t3.length, restNodeForSpan, false, t2));
+        separator = rest._list1$_separator;
+        if (rest instanceof A.SassArgumentList0) {
+          rest._argument_list$_wereKeywordsAccessed = true;
+          rest._argument_list$_keywords.forEach$1(0, new A._EvaluateVisitor__evaluateArguments_closure9(_this, named, restNodeForSpan, namedNodes));
+        }
+      } else {
+        positional.push(_this._evaluate0$_withoutSlash$2(rest, restNodeForSpan));
+        positionalNodes.push(restNodeForSpan);
+        separator = B.ListSeparator_undecided_null_undecided0;
+      }
+      keywordRestArgs = $arguments.keywordRest;
+      if (keywordRestArgs == null)
+        return new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+      keywordRest = keywordRestArgs.accept$1(_this);
+      keywordRestNodeForSpan = _this._evaluate0$_expressionNode$1(keywordRestArgs);
+      if (keywordRest instanceof A.SassMap0) {
+        _this._evaluate0$_addRestMap$4(named, keywordRest, keywordRestArgs, new A._EvaluateVisitor__evaluateArguments_closure10());
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+        for (t2 = keywordRest._map0$_contents, t2 = J.get$iterator$ax(t2.get$keys(t2)), t3 = type$.SassString_2; t2.moveNext$0();)
+          t1.$indexSet(0, t3._as(t2.get$current(t2))._string0$_text, keywordRestNodeForSpan);
+        namedNodes.addAll$1(0, t1);
+        return new A._Record_5_named_namedNodes_positional_positionalNodes_separator([named, namedNodes, positional, positionalNodes, separator]);
+      } else
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs.get$span(keywordRestArgs)));
+    },
+    _evaluate0$_evaluateMacroArguments$1(invocation) {
+      var t2, positional, named, rest, restNodeForSpan, keywordRestArgs_, keywordRest, keywordRestNodeForSpan, _this = this,
+        t1 = invocation.$arguments,
+        restArgs_ = t1.rest;
+      if (restArgs_ == null)
+        return new A._Record_2(t1.positional, t1.named);
+      t2 = t1.positional;
+      positional = A._setArrayType(t2.slice(0), A._arrayInstanceType(t2));
+      named = A.LinkedHashMap_LinkedHashMap$of(t1.named, type$.String, type$.Expression_2);
+      rest = restArgs_.accept$1(_this);
+      restNodeForSpan = _this._evaluate0$_expressionNode$1(restArgs_);
+      if (rest instanceof A.SassMap0)
+        _this._evaluate0$_addRestMap$4(named, rest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure7(restArgs_));
+      else if (rest instanceof A.SassList0) {
+        t2 = rest._list1$_contents;
+        B.JSArray_methods.addAll$1(positional, new A.MappedListIterable(t2, new A._EvaluateVisitor__evaluateMacroArguments_closure8(_this, restNodeForSpan, restArgs_), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,Expression0>")));
+        if (rest instanceof A.SassArgumentList0) {
+          rest._argument_list$_wereKeywordsAccessed = true;
+          rest._argument_list$_keywords.forEach$1(0, new A._EvaluateVisitor__evaluateMacroArguments_closure9(_this, named, restNodeForSpan, restArgs_));
+        }
+      } else
+        positional.push(new A.ValueExpression0(_this._evaluate0$_withoutSlash$2(rest, restNodeForSpan), restArgs_.get$span(restArgs_)));
+      keywordRestArgs_ = t1.keywordRest;
+      if (keywordRestArgs_ == null)
+        return new A._Record_2(positional, named);
+      keywordRest = keywordRestArgs_.accept$1(_this);
+      keywordRestNodeForSpan = _this._evaluate0$_expressionNode$1(keywordRestArgs_);
+      if (keywordRest instanceof A.SassMap0) {
+        _this._evaluate0$_addRestMap$4(named, keywordRest, invocation, new A._EvaluateVisitor__evaluateMacroArguments_closure10(_this, keywordRestNodeForSpan, keywordRestArgs_));
+        return new A._Record_2(positional, named);
+      } else
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Variabs + keywordRest.toString$0(0) + ").", keywordRestArgs_.get$span(keywordRestArgs_)));
+    },
+    _evaluate0$_addRestMap$1$4(values, map, nodeWithSpan, convert) {
+      map._map0$_contents.forEach$1(0, new A._EvaluateVisitor__addRestMap_closure1(this, values, convert, this._evaluate0$_expressionNode$1(nodeWithSpan), map, nodeWithSpan));
+    },
+    _evaluate0$_addRestMap$4(values, map, nodeWithSpan, convert) {
+      return this._evaluate0$_addRestMap$1$4(values, map, nodeWithSpan, convert, type$.dynamic);
+    },
+    _evaluate0$_verifyArguments$4(positional, named, $arguments, nodeWithSpan) {
+      return this._evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__verifyArguments_closure1($arguments, positional, named));
+    },
+    visitSelectorExpression$1(node) {
+      var t1 = this._evaluate0$_styleRuleIgnoringAtRoot;
+      t1 = t1 == null ? null : t1.originalSelector.get$asSassList();
+      return t1 == null ? B.C__SassNull0 : t1;
+    },
+    visitStringExpression$1(node) {
+      var t1, t2, t3, t4, _i, value, t5, _0_0, text, _this = this,
+        oldInSupportsDeclaration = _this._evaluate0$_inSupportsDeclaration;
+      _this._evaluate0$_inSupportsDeclaration = false;
+      t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = node.text.contents, t3 = t2.length, t4 = type$.Expression_2, _i = 0; _i < t3; ++_i) {
+        value = t2[_i];
+        $label0$0: {
+          if (typeof value == "string") {
+            t5 = value;
+            break $label0$0;
+          }
+          if (t4._is(value)) {
+            _0_0 = value.accept$1(_this);
+            $label1$1: {
+              if (_0_0 instanceof A.SassString0) {
+                text = _0_0._string0$_text;
+                t5 = text;
+                break $label1$1;
+              }
+              t5 = _this._evaluate0$_serialize$3$quote(_0_0, value, false);
+              break $label1$1;
+            }
+            break $label0$0;
+          }
+          t5 = A.throwExpression(A.UnsupportedError$("Unknown interpolation value " + A.S(value)));
+        }
+        t1.push(t5);
+      }
+      t1 = B.JSArray_methods.join$0(t1);
+      _this._evaluate0$_inSupportsDeclaration = oldInSupportsDeclaration;
+      return new A.SassString0(t1, node.hasQuotes);
+    },
+    visitSupportsExpression$1(expression) {
+      return new A.SassString0(this._evaluate0$_visitSupportsCondition$1(expression.condition), false);
+    },
+    visitCssAtRule$1(node) {
+      var wasInKeyframes, wasInUnknownAtRule, t1, _this = this;
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.At_rul, node.span));
+      if (node.isChildless) {
+        _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, "__parent").addChild$1(A.ModifiableCssAtRule$0(node.name, node.span, true, node.value));
+        return;
+      }
+      wasInKeyframes = _this._evaluate0$_inKeyframes;
+      wasInUnknownAtRule = _this._evaluate0$_inUnknownAtRule;
+      t1 = node.name;
+      if (A.unvendor0(t1.value) === "keyframes")
+        _this._evaluate0$_inKeyframes = true;
+      else
+        _this._evaluate0$_inUnknownAtRule = true;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssAtRule$0(t1, node.span, false, node.value), new A._EvaluateVisitor_visitCssAtRule_closure3(_this, node), false, new A._EvaluateVisitor_visitCssAtRule_closure4(), type$.ModifiableCssAtRule_2, type$.Null);
+      _this._evaluate0$_inUnknownAtRule = wasInUnknownAtRule;
+      _this._evaluate0$_inKeyframes = wasInKeyframes;
+    },
+    visitCssComment$1(node) {
+      var _this = this,
+        _s8_ = "__parent",
+        _s13_ = "_endOfImports";
+      if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_) === _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, "_root") && _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) === J.get$length$asx(_this._evaluate0$_assertInModule$2(_this._evaluate0$__root, "_root").children._collection$_source))
+        _this._evaluate0$__endOfImports = _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) + 1;
+      _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).addChild$1(new A.ModifiableCssComment0(node.text, node.span));
+    },
+    visitCssDeclaration$1(node) {
+      this._evaluate0$_assertInModule$2(this._evaluate0$__parent, "__parent").addChild$1(A.ModifiableCssDeclaration$0(node.name, node.value, node.span, node.parsedAsCustomProperty, node.valueSpanForMap));
+    },
+    visitCssImport$1(node) {
+      var t1, _this = this,
+        _s8_ = "__parent",
+        _s5_ = "_root",
+        _s13_ = "_endOfImports",
+        modifiableNode = new A.ModifiableCssImport0(node.url, node.modifiers, node.span);
+      if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_) !== _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_))
+        _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).addChild$1(modifiableNode);
+      else if (_this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) === J.get$length$asx(_this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).children._collection$_source)) {
+        _this._evaluate0$_assertInModule$2(_this._evaluate0$__root, _s5_).addChild$1(modifiableNode);
+        _this._evaluate0$__endOfImports = _this._evaluate0$_assertInModule$2(_this._evaluate0$__endOfImports, _s13_) + 1;
+      } else {
+        t1 = _this._evaluate0$_outOfOrderImports;
+        (t1 == null ? _this._evaluate0$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport_2) : t1).push(modifiableNode);
+      }
+    },
+    visitCssKeyframeBlock$1(node) {
+      this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssKeyframeBlock$0(node.selector, node.span), new A._EvaluateVisitor_visitCssKeyframeBlock_closure3(this, node), false, new A._EvaluateVisitor_visitCssKeyframeBlock_closure4(), type$.ModifiableCssKeyframeBlock_2, type$.Null);
+    },
+    visitCssMediaRule$1(node) {
+      var mergedQueries, t1, mergedSources, t2, t3, _this = this;
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Media_, node.span));
+      mergedQueries = A.NullableExtension_andThen0(_this._evaluate0$_mediaQueries, new A._EvaluateVisitor_visitCssMediaRule_closure5(_this, node));
+      t1 = mergedQueries == null;
+      if (!t1 && J.get$isEmpty$asx(mergedQueries))
+        return;
+      if (t1)
+        mergedSources = B.Set_empty5;
+      else {
+        t2 = _this._evaluate0$_mediaQuerySources;
+        t2.toString;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(t2, type$.CssMediaQuery_2);
+        t3 = _this._evaluate0$_mediaQueries;
+        t3.toString;
+        t2.addAll$1(0, t3);
+        t2.addAll$1(0, node.queries);
+        mergedSources = t2;
+      }
+      t1 = t1 ? node.queries : mergedQueries;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssMediaRule$0(t1, node.span), new A._EvaluateVisitor_visitCssMediaRule_closure6(_this, mergedQueries, node, mergedSources), false, new A._EvaluateVisitor_visitCssMediaRule_closure7(mergedSources), type$.ModifiableCssMediaRule_2, type$.Null);
+    },
+    visitCssStyleRule$1(node) {
+      var t1, styleRule, t2, nest, t3, originalSelector, rule, oldAtRootExcludingStyleRule, _0_1, lastChild, _this = this, _null = null,
+        _s8_ = "__parent";
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Style_n, node.span));
+      else if (_this._evaluate0$_inKeyframes && _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_) instanceof A.ModifiableCssKeyframeBlock0)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Style_k, node.span));
+      t1 = _this._evaluate0$_atRootExcludingStyleRule;
+      styleRule = t1 ? _null : _this._evaluate0$_styleRuleIgnoringAtRoot;
+      t2 = t1 ? _null : _this._evaluate0$_styleRuleIgnoringAtRoot;
+      t2 = t2 == null ? _null : t2.fromPlainCss;
+      nest = t2 !== true;
+      t2 = node._style_rule0$_selector._box0$_inner;
+      if (nest) {
+        t2 = t2.value;
+        t3 = styleRule == null ? _null : styleRule.originalSelector;
+        originalSelector = t2.nestWithin$3$implicitParent$preserveParentSelectors(t3, !t1, node.fromPlainCss);
+      } else
+        originalSelector = t2.value;
+      rule = A.ModifiableCssStyleRule$0(_this._evaluate0$_assertInModule$2(_this._evaluate0$__extensionStore, "_extensionStore").addSelector$2(originalSelector, _this._evaluate0$_mediaQueries), node.span, node.fromPlainCss, originalSelector);
+      oldAtRootExcludingStyleRule = _this._evaluate0$_atRootExcludingStyleRule;
+      _this._evaluate0$_atRootExcludingStyleRule = false;
+      t1 = nest ? new A._EvaluateVisitor_visitCssStyleRule_closure3() : _null;
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(rule, new A._EvaluateVisitor_visitCssStyleRule_closure4(_this, rule, node), false, t1, type$.ModifiableCssStyleRule_2, type$.Null);
+      _this._evaluate0$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+      t1 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, _s8_).children._collection$_source;
+      t2 = J.getInterceptor$asx(t1);
+      _0_1 = t2.get$length(t1);
+      if (_0_1 >= 1) {
+        lastChild = t2.elementAt$1(t1, _0_1 - 1);
+        t1 = styleRule == null;
+      } else {
+        lastChild = _null;
+        t1 = false;
+      }
+      if (t1)
+        lastChild.isGroupEnd = true;
+    },
+    visitCssStylesheet$1(node) {
+      var t1;
+      for (t1 = J.get$iterator$ax(node.get$children(node)); t1.moveNext$0();)
+        t1.get$current(t1).accept$1(this);
+    },
+    visitCssSupportsRule$1(node) {
+      var _this = this;
+      if (_this._evaluate0$_declarationName != null)
+        throw A.wrapException(_this._evaluate0$_exception$2(string$.Suppor, node.span));
+      _this._evaluate0$_withParent$2$4$scopeWhen$through(A.ModifiableCssSupportsRule$0(node.condition, node.span), new A._EvaluateVisitor_visitCssSupportsRule_closure3(_this, node), false, new A._EvaluateVisitor_visitCssSupportsRule_closure4(), type$.ModifiableCssSupportsRule_2, type$.Null);
+    },
+    _evaluate0$_handleReturn$1$2(list, callback) {
+      var t1, _i, _0_0;
+      for (t1 = list.length, _i = 0; _i < list.length; list.length === t1 || (0, A.throwConcurrentModificationError)(list), ++_i) {
+        _0_0 = callback.call$1(list[_i]);
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    _evaluate0$_handleReturn$2(list, callback) {
+      return this._evaluate0$_handleReturn$1$2(list, callback, type$.dynamic);
+    },
+    _evaluate0$_withEnvironment$1$2(environment, callback) {
+      var result,
+        oldEnvironment = this._evaluate0$_environment;
+      this._evaluate0$_environment = environment;
+      result = callback.call$0();
+      this._evaluate0$_environment = oldEnvironment;
+      return result;
+    },
+    _evaluate0$_withEnvironment$2(environment, callback) {
+      return this._evaluate0$_withEnvironment$1$2(environment, callback, type$.dynamic);
+    },
+    _evaluate0$_interpolationToValue$3$trim$warnForColor(interpolation, trim, warnForColor) {
+      var result = this._evaluate0$_performInterpolation$2$warnForColor(interpolation, warnForColor),
+        t1 = trim ? A.trimAscii0(result, true) : result;
+      return new A.CssValue0(t1, interpolation.span, type$.CssValue_String_2);
+    },
+    _evaluate0$_interpolationToValue$1(interpolation) {
+      return this._evaluate0$_interpolationToValue$3$trim$warnForColor(interpolation, false, false);
+    },
+    _evaluate0$_interpolationToValue$2$warnForColor(interpolation, warnForColor) {
+      return this._evaluate0$_interpolationToValue$3$trim$warnForColor(interpolation, false, warnForColor);
+    },
+    _evaluate0$_performInterpolation$2$warnForColor(interpolation, warnForColor) {
+      return this._evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, false, warnForColor)._0;
+    },
+    _evaluate0$_performInterpolation$1(interpolation) {
+      return this._evaluate0$_performInterpolation$2$warnForColor(interpolation, false);
+    },
+    _evaluate0$_performInterpolationWithMap$2$warnForColor(interpolation, warnForColor) {
+      var _0_0 = this._evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, true, true),
+        map = _0_0._1;
+      map.toString;
+      return new A._Record_2(_0_0._0, map);
+    },
+    _evaluate0$_performInterpolationHelper$3$sourceMap$warnForColor(interpolation, sourceMap, warnForColor) {
+      var t1, t2, t3, t4, t5, t6, t7, first, _i, t8, value, result, t9, result0, _this = this, _null = null,
+        targetLocations = sourceMap ? A._setArrayType([], type$.JSArray_SourceLocation) : _null,
+        oldInSupportsDeclaration = _this._evaluate0$_inSupportsDeclaration;
+      _this._evaluate0$_inSupportsDeclaration = false;
+      for (t1 = interpolation.contents, t2 = t1.length, t3 = type$.Expression_2, t4 = targetLocations == null, t5 = type$.JSArray_Object, t6 = interpolation.span, t7 = type$.Object, first = true, _i = 0, t8 = ""; _i < t2; ++_i, first = false) {
+        value = t1[_i];
+        if (!first)
+          if (!t4)
+            targetLocations.push(A.SourceLocation$(t8.length, _null, _null, _null));
+        if (typeof value == "string") {
+          t8 += value;
+          continue;
+        }
+        t3._as(value);
+        result = value.accept$1(_this);
+        if (warnForColor && $.$get$namesByColor0().containsKey$1(result)) {
+          t9 = A._setArrayType([""], t5);
+          result0 = A.List_List$from(t9, false, t7);
+          result0.fixed$length = Array;
+          result0.immutable$list = Array;
+          result0 = new A.Interpolation0(result0, t6);
+          result0.Interpolation$20(t9, t6);
+          t9 = $.$get$namesByColor0();
+          _this._evaluate0$_warn$2(string$.You_pr + A.S(t9.$index(0, result)) + string$.x20in_in + result.toString$0(0) + string$.x2c_whicw + A.S(t9.$index(0, result)) + string$.x22x29__If + new A.BinaryOperationExpression0(B.BinaryOperator_u150, new A.StringExpression0(result0, true), value, false).toString$0(0) + "'.", value.get$span(value));
+        }
+        t8 += _this._evaluate0$_serialize$3$quote(result, value, false);
+      }
+      _this._evaluate0$_inSupportsDeclaration = oldInSupportsDeclaration;
+      return new A._Record_2(t8.charCodeAt(0) == 0 ? t8 : t8, A.NullableExtension_andThen0(targetLocations, new A._EvaluateVisitor__performInterpolationHelper_closure1(interpolation)));
+    },
+    _evaluate0$_serialize$3$quote(value, nodeWithSpan, quote) {
+      return this._evaluate0$_addExceptionSpan$2(nodeWithSpan, new A._EvaluateVisitor__serialize_closure1(value, quote));
+    },
+    _evaluate0$_serialize$2(value, nodeWithSpan) {
+      return this._evaluate0$_serialize$3$quote(value, nodeWithSpan, true);
+    },
+    _evaluate0$_expressionNode$1(expression) {
+      var t1;
+      if (expression instanceof A.VariableExpression0) {
+        t1 = this._evaluate0$_addExceptionSpan$2(expression, new A._EvaluateVisitor__expressionNode_closure1(this, expression));
+        return t1 == null ? expression : t1;
+      } else
+        return expression;
+    },
+    _evaluate0$_withParent$2$4$scopeWhen$through(node, callback, scopeWhen, through, $S, $T) {
+      var t1, result, _this = this;
+      _this._evaluate0$_addChild$2$through(node, through);
+      t1 = _this._evaluate0$_assertInModule$2(_this._evaluate0$__parent, "__parent");
+      _this._evaluate0$__parent = node;
+      result = _this._evaluate0$_environment.scope$1$2$when(callback, scopeWhen, $T);
+      _this._evaluate0$__parent = t1;
+      return result;
+    },
+    _evaluate0$_withParent$2$3$scopeWhen(node, callback, scopeWhen, $S, $T) {
+      return this._evaluate0$_withParent$2$4$scopeWhen$through(node, callback, scopeWhen, null, $S, $T);
+    },
+    _evaluate0$_withParent$2$2(node, callback, $S, $T) {
+      return this._evaluate0$_withParent$2$4$scopeWhen$through(node, callback, true, null, $S, $T);
+    },
+    _evaluate0$_addChild$2$through(node, through) {
+      var _0_0, grandparent, t1,
+        $parent = this._evaluate0$_assertInModule$2(this._evaluate0$__parent, "__parent");
+      if (through != null) {
+        for (; through.call$1($parent); $parent = _0_0) {
+          _0_0 = $parent._node$_parent;
+          if (_0_0 == null)
+            throw A.wrapException(A.ArgumentError$(string$.throug + node.toString$0(0) + ".", null));
+        }
+        if ($parent.get$hasFollowingSibling()) {
+          grandparent = $parent._node$_parent;
+          t1 = grandparent.children;
+          if ($parent.equalsIgnoringChildren$1(t1.get$last(t1)))
+            $parent = type$.ModifiableCssParentNode_2._as(t1.get$last(t1));
+          else {
+            $parent = $parent.copyWithoutChildren$0();
+            grandparent.addChild$1($parent);
+          }
+        }
+      }
+      $parent.addChild$1(node);
+    },
+    _evaluate0$_addChild$1(node) {
+      return this._evaluate0$_addChild$2$through(node, null);
+    },
+    _evaluate0$_withStyleRule$1$2(rule, callback) {
+      var result,
+        oldRule = this._evaluate0$_styleRuleIgnoringAtRoot;
+      this._evaluate0$_styleRuleIgnoringAtRoot = rule;
+      result = callback.call$0();
+      this._evaluate0$_styleRuleIgnoringAtRoot = oldRule;
+      return result;
+    },
+    _evaluate0$_withStyleRule$2(rule, callback) {
+      return this._evaluate0$_withStyleRule$1$2(rule, callback, type$.dynamic);
+    },
+    _evaluate0$_withMediaQueries$1$3(queries, sources, callback) {
+      var result, _this = this,
+        oldMediaQueries = _this._evaluate0$_mediaQueries,
+        oldSources = _this._evaluate0$_mediaQuerySources;
+      _this._evaluate0$_mediaQueries = queries;
+      _this._evaluate0$_mediaQuerySources = sources;
+      result = callback.call$0();
+      _this._evaluate0$_mediaQueries = oldMediaQueries;
+      _this._evaluate0$_mediaQuerySources = oldSources;
+      return result;
+    },
+    _evaluate0$_withMediaQueries$3(queries, sources, callback) {
+      return this._evaluate0$_withMediaQueries$1$3(queries, sources, callback, type$.dynamic);
+    },
+    _evaluate0$_withStackFrame$1$3(member, nodeWithSpan, callback) {
+      var oldMember, result, _this = this,
+        t1 = _this._evaluate0$_stack;
+      t1.push(new A._Record_2(_this._evaluate0$_member, nodeWithSpan));
+      oldMember = _this._evaluate0$_member;
+      _this._evaluate0$_member = member;
+      result = callback.call$0();
+      _this._evaluate0$_member = oldMember;
+      t1.pop();
+      return result;
+    },
+    _evaluate0$_withStackFrame$3(member, nodeWithSpan, callback) {
+      return this._evaluate0$_withStackFrame$1$3(member, nodeWithSpan, callback, type$.dynamic);
+    },
+    _evaluate0$_withoutSlash$2(value, nodeForSpan) {
+      var t1;
+      if (value instanceof A.SassNumber0)
+        t1 = value.asSlash != null;
+      else
+        t1 = false;
+      if (t1)
+        this._evaluate0$_warn$3(string$.Using__i + A.S(new A._EvaluateVisitor__withoutSlash_recommendation1().call$1(value)) + string$.x0a_Morex20, nodeForSpan.get$span(nodeForSpan), B.Deprecation_E8a);
+      return value.withoutSlash$0();
+    },
+    _evaluate0$_stackFrame$2(member, span) {
+      return A.frameForSpan0(span, member, A.NullableExtension_andThen0(span.get$sourceUrl(span), new A._EvaluateVisitor__stackFrame_closure1(this)));
+    },
+    _evaluate0$_stackTrace$1(span) {
+      var t2, t3, _i, t4, nodeWithSpan, _this = this,
+        t1 = A._setArrayType([], type$.JSArray_Frame);
+      for (t2 = _this._evaluate0$_stack, t3 = t2.length, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        t4 = t2[_i];
+        nodeWithSpan = t4._1;
+        t1.push(_this._evaluate0$_stackFrame$2(t4._0, nodeWithSpan.get$span(nodeWithSpan)));
+      }
+      if (span != null)
+        t1.push(_this._evaluate0$_stackFrame$2(_this._evaluate0$_member, span));
+      return A.Trace$(new A.ReversedListIterable(t1, type$.ReversedListIterable_Frame), null);
+    },
+    _evaluate0$_stackTrace$0() {
+      return this._evaluate0$_stackTrace$1(null);
+    },
+    _evaluate0$_warn$3(message, span, deprecation) {
+      var t1, trace, _this = this;
+      if (_this._evaluate0$_quietDeps)
+        if (!_this._evaluate0$_inDependency) {
+          t1 = _this._evaluate0$_currentCallable;
+          t1 = t1 == null ? null : t1.inDependency;
+          t1 = t1 === true;
+        } else
+          t1 = true;
+      else
+        t1 = false;
+      if (t1)
+        return;
+      if (!_this._evaluate0$_warningsEmitted.add$1(0, new A._Record_2(message, span)))
+        return;
+      trace = _this._evaluate0$_stackTrace$1(span);
+      t1 = _this._evaluate0$_logger;
+      if (deprecation == null)
+        t1.warn$3$span$trace(0, message, span, trace);
+      else
+        A.WarnForDeprecation_warnForDeprecation0(t1, deprecation, message, span, trace);
+    },
+    _evaluate0$_warn$2(message, span) {
+      return this._evaluate0$_warn$3(message, span, null);
+    },
+    _evaluate0$_exception$2(message, span) {
+      var t1, t2;
+      if (span == null) {
+        t1 = B.JSArray_methods.get$last(this._evaluate0$_stack)._1;
+        t1 = t1.get$span(t1);
+      } else
+        t1 = span;
+      t2 = this._evaluate0$_stackTrace$1(span);
+      return new A.SassRuntimeException0(t2, B.Set_empty, message, t1);
+    },
+    _evaluate0$_exception$1(message) {
+      return this._evaluate0$_exception$2(message, null);
+    },
+    _evaluate0$_multiSpanException$3(message, primaryLabel, secondaryLabels) {
+      var t1 = B.JSArray_methods.get$last(this._evaluate0$_stack)._1;
+      return A.MultiSpanSassRuntimeException$0(message, t1.get$span(t1), primaryLabel, secondaryLabels, this._evaluate0$_stackTrace$0(), null);
+    },
+    _evaluate0$_addExceptionSpan$1$3$addStackFrame(nodeWithSpan, callback, addStackFrame) {
+      var error, stackTrace, t1, exception;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassScriptException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error.withSpan$1(nodeWithSpan.get$span(nodeWithSpan));
+          A.throwWithTrace0(t1.withTrace$1(this._evaluate0$_stackTrace$1(addStackFrame ? nodeWithSpan.get$span(nodeWithSpan) : null)), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _evaluate0$_addExceptionSpan$2(nodeWithSpan, callback) {
+      return this._evaluate0$_addExceptionSpan$1$3$addStackFrame(nodeWithSpan, callback, true, type$.dynamic);
+    },
+    _evaluate0$_addExceptionSpan$3$addStackFrame(nodeWithSpan, callback, addStackFrame) {
+      return this._evaluate0$_addExceptionSpan$1$3$addStackFrame(nodeWithSpan, callback, addStackFrame, type$.dynamic);
+    },
+    _evaluate0$_addExceptionTrace$1$1(callback) {
+      var error, stackTrace, t1, exception, t2;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassRuntimeException_2._is(t1))
+          throw exception;
+        else if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = error;
+          t2 = J.getInterceptor$z(t1);
+          A.throwWithTrace0(error.withTrace$1(this._evaluate0$_stackTrace$1(A.SourceSpanException.prototype.get$span.call(t2, t1))), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _evaluate0$_addExceptionTrace$1(callback) {
+      return this._evaluate0$_addExceptionTrace$1$1(callback, type$.dynamic);
+    },
+    _evaluate0$_addErrorSpan$1$2(nodeWithSpan, callback) {
+      var error, stackTrace, t1, exception, t2, t3;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SassRuntimeException_2._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          if (!B.JSString_methods.startsWith$1(J.get$span$z(error).get$text(), "@error"))
+            throw exception;
+          t1 = error._span_exception$_message;
+          t2 = nodeWithSpan.get$span(nodeWithSpan);
+          t3 = this._evaluate0$_stackTrace$0();
+          A.throwWithTrace0(new A.SassRuntimeException0(t3, B.Set_empty, t1, t2), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _evaluate0$_addErrorSpan$2(nodeWithSpan, callback) {
+      return this._evaluate0$_addErrorSpan$1$2(nodeWithSpan, callback, type$.dynamic);
+    }
+  };
+  A._EvaluateVisitor_closure25.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._evaluate0$_environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string0$_text, "_", "-");
+      return t1.globalVariableExists$2$namespace(t2, module == null ? null : module._string0$_text) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure26.prototype = {
+    call$1($arguments) {
+      var variable = J.$index$asx($arguments, 0).assertString$1("name"),
+        t1 = this.$this._evaluate0$_environment;
+      return t1.getVariable$1(A.stringReplaceAllUnchecked(variable._string0$_text, "_", "-")) != null ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure27.prototype = {
+    call$1($arguments) {
+      var module, t2, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._evaluate0$_environment;
+      t3 = variable._string0$_text;
+      t4 = A.stringReplaceAllUnchecked(t3, "_", "-");
+      return t2.getFunction$2$namespace(t4, module == null ? null : module._string0$_text) != null || t1._evaluate0$_builtInFunctions.containsKey$1(t3) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure28.prototype = {
+    call$1($arguments) {
+      var module, t2,
+        t1 = J.getInterceptor$asx($arguments),
+        variable = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this._evaluate0$_environment;
+      t2 = A.stringReplaceAllUnchecked(variable._string0$_text, "_", "-");
+      return t1.getMixin$2$namespace(t2, module == null ? null : module._string0$_text) != null ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure29.prototype = {
+    call$1($arguments) {
+      var t1 = this.$this._evaluate0$_environment;
+      if (!t1._environment0$_inMixin)
+        throw A.wrapException(A.SassScriptException$0(string$.conten, null));
+      return t1._environment0$_content != null ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._EvaluateVisitor_closure30.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string0$_text,
+        module = this.$this._evaluate0$_environment._environment0$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs0(module.get$variables(), type$.String, t1), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString0(t4._0, true), t4._1);
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._EvaluateVisitor_closure31.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string0$_text,
+        module = this.$this._evaluate0$_environment._environment0$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs0(module.get$functions(module), type$.String, type$.Callable_2), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString0(t4._0, true), new A.SassFunction0(t4._1));
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._EvaluateVisitor_closure32.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.$index$asx($arguments, 0).assertString$1("module")._string0$_text,
+        module = this.$this._evaluate0$_environment._environment0$_modules.$index(0, t1);
+      if (module == null)
+        throw A.wrapException('There is no module with namespace "' + t1 + '".');
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t3 = A.MapExtensions_get_pairs0(module.get$mixins(), type$.String, type$.Callable_2), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        t2.$indexSet(0, new A.SassString0(t4._0, true), new A.SassMixin0(t4._1));
+      }
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._EvaluateVisitor_closure33.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name"),
+        css = t1.$index($arguments, 1).get$isTruthy();
+      t1 = t1.$index($arguments, 2).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      if (css) {
+        if (module != null)
+          throw A.wrapException(string$.x24css_a);
+        return new A.SassFunction0(new A.PlainCssCallable0($name._string0$_text));
+      }
+      t1 = this.$this;
+      t2 = t1._evaluate0$_callableNode;
+      t2.toString;
+      callable = t1._evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor__closure10(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Function not found: " + $name.toString$0(0));
+      return new A.SassFunction0(callable);
+    },
+    $signature: 137
+  };
+  A._EvaluateVisitor__closure10.prototype = {
+    call$0() {
+      var local,
+        normalizedName = A.stringReplaceAllUnchecked(this.name._string0$_text, "_", "-"),
+        t1 = this.module,
+        namespace = t1 == null ? null : t1._string0$_text;
+      t1 = this.$this;
+      local = t1._evaluate0$_environment.getFunction$2$namespace(normalizedName, namespace);
+      if (local != null || namespace != null)
+        return local;
+      return t1._evaluate0$_builtInFunctions.$index(0, normalizedName);
+    },
+    $signature: 88
+  };
+  A._EvaluateVisitor_closure34.prototype = {
+    call$1($arguments) {
+      var module, t2, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $name = t1.$index($arguments, 0).assertString$1("name");
+      t1 = t1.$index($arguments, 1).get$realNull();
+      module = t1 == null ? null : t1.assertString$1("module");
+      t1 = this.$this;
+      t2 = t1._evaluate0$_callableNode;
+      t2.toString;
+      callable = t1._evaluate0$_addExceptionSpan$2(t2, new A._EvaluateVisitor__closure9(t1, $name, module));
+      if (callable == null)
+        throw A.wrapException("Mixin not found: " + $name.toString$0(0));
+      return new A.SassMixin0(callable);
+    },
+    $signature: 241
+  };
+  A._EvaluateVisitor__closure9.prototype = {
+    call$0() {
+      var t1 = this.$this._evaluate0$_environment,
+        t2 = A.stringReplaceAllUnchecked(this.name._string0$_text, "_", "-"),
+        t3 = this.module;
+      return t1.getMixin$2$namespace(t2, t3 == null ? null : t3._string0$_text);
+    },
+    $signature: 88
+  };
+  A._EvaluateVisitor_closure35.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, invocation, callableNode, callable,
+        t1 = J.getInterceptor$asx($arguments),
+        $function = t1.$index($arguments, 0),
+        args = type$.SassArgumentList_2._as(t1.$index($arguments, 1));
+      t1 = this.$this;
+      t2 = t1._evaluate0$_callableNode;
+      t2.toString;
+      t3 = A._setArrayType([], type$.JSArray_Expression_2);
+      t4 = type$.String;
+      t5 = type$.Expression_2;
+      t6 = t2.get$span(t2);
+      t7 = t2.get$span(t2);
+      args._argument_list$_wereKeywordsAccessed = true;
+      t8 = args._argument_list$_keywords;
+      if (t8.get$isEmpty(t8))
+        t2 = null;
+      else {
+        t9 = type$.Value_2;
+        t10 = A.LinkedHashMap_LinkedHashMap$_empty(t9, t9);
+        for (args._argument_list$_wereKeywordsAccessed = true, t8 = A.MapExtensions_get_pairs0(t8, t4, t9), t8 = t8.get$iterator(t8); t8.moveNext$0();) {
+          t11 = t8.get$current(t8);
+          t10.$indexSet(0, new A.SassString0(t11._0, false), t11._1);
+        }
+        t2 = new A.ValueExpression0(new A.SassMap0(A.ConstantMap_ConstantMap$from(t10, t9, t9)), t2.get$span(t2));
+      }
+      invocation = new A.ArgumentInvocation0(A.List_List$unmodifiable(t3, t5), A.ConstantMap_ConstantMap$from(A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t4, t5), new A.ValueExpression0(args, t7), t2, t6);
+      if ($function instanceof A.SassString0) {
+        A.warnForDeprecation0(string$.Passina + $function.toString$0(0) + "))", B.Deprecation_MMc);
+        callableNode = t1._evaluate0$_callableNode;
+        t2 = $function._string0$_text;
+        t3 = callableNode.get$span(callableNode);
+        return t1.visitFunctionExpression$1(new A.FunctionExpression0(null, A.stringReplaceAllUnchecked(t2, "_", "-"), t2, invocation, t3));
+      }
+      callable = $function.assertFunction$1("function").callable;
+      if (type$.Callable_2._is(callable)) {
+        t2 = t1._evaluate0$_callableNode;
+        t2.toString;
+        return t1._evaluate0$_runFunctionCallable$3(invocation, callable, t2);
+      } else
+        throw A.wrapException(A.SassScriptException$0("The function " + callable.get$name(callable) + string$.x20is_as, null));
+    },
+    $signature: 3
+  };
+  A._EvaluateVisitor_closure36.prototype = {
+    call$1($arguments) {
+      var withMap, t2, values, configuration, t3,
+        t1 = J.getInterceptor$asx($arguments),
+        url = A.Uri_parse(t1.$index($arguments, 0).assertString$1("url")._string0$_text);
+      t1 = t1.$index($arguments, 1).get$realNull();
+      withMap = t1 == null ? null : t1.assertMap$1("with")._map0$_contents;
+      t1 = this.$this;
+      t2 = t1._evaluate0$_callableNode;
+      t2.toString;
+      if (withMap != null) {
+        values = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, type$.ConfiguredValue_2);
+        withMap.forEach$1(0, new A._EvaluateVisitor__closure7(values, t2.get$span(t2), t2));
+        configuration = new A.ExplicitConfiguration0(t2, values, null);
+      } else
+        configuration = B.Configuration_Map_empty_null0;
+      t3 = t2.get$span(t2);
+      t1._evaluate0$_loadModule$7$baseUrl$configuration$namesInErrors(url, "load-css()", t2, new A._EvaluateVisitor__closure8(t1), t3.get$sourceUrl(t3), configuration, true);
+      t1._evaluate0$_assertConfigurationIsEmpty$2$nameInError(configuration, true);
+    },
+    $signature: 192
+  };
+  A._EvaluateVisitor__closure7.prototype = {
+    call$2(variable, value) {
+      var t1 = variable.assertString$1("with key"),
+        $name = A.stringReplaceAllUnchecked(t1._string0$_text, "_", "-");
+      t1 = this.values;
+      if (t1.containsKey$1($name))
+        throw A.wrapException("The variable $" + $name + " was configured twice.");
+      t1.$indexSet(0, $name, new A.ConfiguredValue0(value, this.span, this.callableNode));
+    },
+    $signature: 94
+  };
+  A._EvaluateVisitor__closure8.prototype = {
+    call$2(module, _) {
+      var t1 = this.$this;
+      return t1._evaluate0$_combineCss$2$clone(module, true).accept$1(t1);
+    },
+    $signature: 87
+  };
+  A._EvaluateVisitor_closure37.prototype = {
+    call$1($arguments) {
+      var callableNode, t2, t3, t4, t5, callable, $content,
+        t1 = J.getInterceptor$asx($arguments),
+        mixin = t1.$index($arguments, 0),
+        args = type$.SassArgumentList_2._as(t1.$index($arguments, 1));
+      t1 = this.$this;
+      callableNode = t1._evaluate0$_callableNode;
+      t2 = callableNode.get$span(callableNode);
+      t3 = callableNode.get$span(callableNode);
+      t4 = type$.Expression_2;
+      t5 = A.List_List$unmodifiable(B.List_empty20, t4);
+      t4 = A.ConstantMap_ConstantMap$from(B.Map_empty14, type$.String, t4);
+      callable = mixin.assertMixin$1("mixin").callable;
+      $content = t1._evaluate0$_environment._environment0$_content;
+      if (type$.Callable_2._is(callable))
+        t1._evaluate0$_applyMixin$5(callable, $content, new A.ArgumentInvocation0(t5, t4, new A.ValueExpression0(args, t3), null, t2), callableNode, callableNode);
+      else
+        throw A.wrapException(A.SassScriptException$0("The mixin " + callable.get$name(callable) + string$.x20is_as, null));
+    },
+    $signature: 192
+  };
+  A._EvaluateVisitor_run_closure1.prototype = {
+    call$0() {
+      var module, t2, _this = this,
+        t1 = _this.node,
+        _0_0 = t1.span.file.url,
+        url = null;
+      if (_0_0 != null) {
+        url = _0_0;
+        t2 = _this.$this;
+        t2._evaluate0$_activeModules.$indexSet(0, url, null);
+        if (!(t2._nodeImporter != null && J.toString$0$(url) === "stdin"))
+          t2._evaluate0$_loadedUrls.add$1(0, url);
+      }
+      t2 = _this.$this;
+      module = t2._evaluate0$_addExceptionTrace$1(new A._EvaluateVisitor_run__closure1(t2, _this.importer, t1));
+      return new A._Record_2_loadedUrls_stylesheet(t2._evaluate0$_loadedUrls, t2._evaluate0$_combineCss$1(module));
+    },
+    $signature: 429
+  };
+  A._EvaluateVisitor_run__closure1.prototype = {
+    call$0() {
+      return this.$this._evaluate0$_execute$2(this.importer, this.node);
+    },
+    $signature: 430
+  };
+  A._EvaluateVisitor__loadModule_closure3.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_1.builtInModule, false);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__loadModule_closure4.prototype = {
+    call$0() {
+      var canonicalUrl, oldInDependency, t4, message, _this = this, t1 = {}, stylesheet = null, importer = null,
+        t2 = _this.$this,
+        t3 = _this.nodeWithSpan,
+        _1_0 = t2._evaluate0$_loadStylesheet$3$baseUrl(_this.url.toString$0(0), t3.get$span(t3), _this.baseUrl);
+      stylesheet = _1_0._0;
+      importer = _1_0._1;
+      canonicalUrl = stylesheet.span.file.url;
+      if (canonicalUrl != null) {
+        t4 = t2._evaluate0$_activeModules;
+        if (t4.containsKey$1(canonicalUrl)) {
+          if (_this.namesInErrors) {
+            t1 = canonicalUrl;
+            t3 = $.$get$context();
+            t1.toString;
+            message = "Module loop: " + t3.prettyUri$1(t1) + " is already being loaded.";
+          } else
+            message = string$.Modulel;
+          t1 = A.NullableExtension_andThen0(t4.$index(0, canonicalUrl), new A._EvaluateVisitor__loadModule__closure3(t2, message));
+          throw A.wrapException(t1 == null ? t2._evaluate0$_exception$1(message) : t1);
+        } else
+          t4.$indexSet(0, canonicalUrl, t3);
+      }
+      t4 = t2._evaluate0$_modules.containsKey$1(canonicalUrl);
+      oldInDependency = t2._evaluate0$_inDependency;
+      t2._evaluate0$_inDependency = _1_0._2;
+      t1.module = null;
+      try {
+        t1.module = t2._evaluate0$_execute$5$configuration$namesInErrors$nodeWithSpan(importer, stylesheet, _this.configuration, _this.namesInErrors, t3);
+      } finally {
+        t2._evaluate0$_activeModules.remove$1(0, canonicalUrl);
+        t2._evaluate0$_inDependency = oldInDependency;
+      }
+      t2._evaluate0$_addExceptionSpan$3$addStackFrame(t3, new A._EvaluateVisitor__loadModule__closure4(t1, _this.callback, !t4), false);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__loadModule__closure3.prototype = {
+    call$1(previousLoad) {
+      return this.$this._evaluate0$_multiSpanException$3(this.message, "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 95
+  };
+  A._EvaluateVisitor__loadModule__closure4.prototype = {
+    call$0() {
+      return this.callback.call$2(this._box_0.module, this.firstLoad);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__execute_closure1.prototype = {
+    call$0() {
+      var t3, t4, t5, t6, _this = this,
+        t1 = _this.$this,
+        oldImporter = t1._evaluate0$_importer,
+        oldStylesheet = t1._evaluate0$__stylesheet,
+        oldRoot = t1._evaluate0$__root,
+        oldPreModuleComments = t1._evaluate0$_preModuleComments,
+        oldParent = t1._evaluate0$__parent,
+        oldEndOfImports = t1._evaluate0$__endOfImports,
+        oldOutOfOrderImports = t1._evaluate0$_outOfOrderImports,
+        oldExtensionStore = t1._evaluate0$__extensionStore,
+        t2 = t1._evaluate0$_atRootExcludingStyleRule,
+        oldStyleRule = t2 ? null : t1._evaluate0$_styleRuleIgnoringAtRoot,
+        oldMediaQueries = t1._evaluate0$_mediaQueries,
+        oldDeclarationName = t1._evaluate0$_declarationName,
+        oldInUnknownAtRule = t1._evaluate0$_inUnknownAtRule,
+        oldInKeyframes = t1._evaluate0$_inKeyframes,
+        oldConfiguration = t1._evaluate0$_configuration;
+      t1._evaluate0$_importer = _this.importer;
+      t3 = t1._evaluate0$__stylesheet = _this.stylesheet;
+      t4 = t3.span;
+      t5 = t1._evaluate0$__parent = t1._evaluate0$__root = A.ModifiableCssStylesheet$0(t4);
+      t1._evaluate0$__endOfImports = 0;
+      t1._evaluate0$_outOfOrderImports = null;
+      t1._evaluate0$__extensionStore = _this.extensionStore;
+      t1._evaluate0$_declarationName = t1._evaluate0$_mediaQueries = t1._evaluate0$_styleRuleIgnoringAtRoot = null;
+      t1._evaluate0$_inKeyframes = t1._evaluate0$_atRootExcludingStyleRule = t1._evaluate0$_inUnknownAtRule = false;
+      t6 = _this.configuration;
+      if (t6 != null)
+        t1._evaluate0$_configuration = t6;
+      t1.visitStylesheet$1(t3);
+      t3 = t1._evaluate0$_outOfOrderImports == null ? t5 : new A.CssStylesheet0(new A.UnmodifiableListView(t1._evaluate0$_addOutOfOrderImports$0(), type$.UnmodifiableListView_CssNode_2), t4);
+      _this.css.__late_helper$_value = t3;
+      _this.preModuleComments.__late_helper$_value = t1._evaluate0$_preModuleComments;
+      t1._evaluate0$_importer = oldImporter;
+      t1._evaluate0$__stylesheet = oldStylesheet;
+      t1._evaluate0$__root = oldRoot;
+      t1._evaluate0$_preModuleComments = oldPreModuleComments;
+      t1._evaluate0$__parent = oldParent;
+      t1._evaluate0$__endOfImports = oldEndOfImports;
+      t1._evaluate0$_outOfOrderImports = oldOutOfOrderImports;
+      t1._evaluate0$__extensionStore = oldExtensionStore;
+      t1._evaluate0$_styleRuleIgnoringAtRoot = oldStyleRule;
+      t1._evaluate0$_mediaQueries = oldMediaQueries;
+      t1._evaluate0$_declarationName = oldDeclarationName;
+      t1._evaluate0$_inUnknownAtRule = oldInUnknownAtRule;
+      t1._evaluate0$_atRootExcludingStyleRule = t2;
+      t1._evaluate0$_inKeyframes = oldInKeyframes;
+      t1._evaluate0$_configuration = oldConfiguration;
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__combineCss_closure3.prototype = {
+    call$1(module) {
+      return module.get$transitivelyContainsCss();
+    },
+    $signature: 123
+  };
+  A._EvaluateVisitor__combineCss_closure4.prototype = {
+    call$1(target) {
+      return !this.selectors.contains$1(0, target);
+    },
+    $signature: 15
+  };
+  A._EvaluateVisitor__combineCss_visitModule1.prototype = {
+    call$1(module) {
+      var t1, t2, t3, t4, _i, upstream, _1_0, statements, index, _this = this;
+      if (!_this.seen.add$1(0, module))
+        return;
+      if (_this.clone)
+        module = module.cloneCss$0();
+      for (t1 = module.get$upstream(), t2 = t1.length, t3 = _this.css, t4 = _this.imports, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        upstream = t1[_i];
+        if (upstream.get$transitivelyContainsCss()) {
+          _1_0 = module.get$preModuleComments().$index(0, upstream);
+          if (_1_0 != null)
+            B.JSArray_methods.addAll$1(t3.length === 0 ? t4 : t3, _1_0);
+          _this.call$1(upstream);
+        }
+      }
+      _this.sorted.addFirst$1(module);
+      t1 = module.get$css(module);
+      statements = t1.get$children(t1);
+      index = _this.$this._evaluate0$_indexAfterImports$1(statements);
+      t1 = J.getInterceptor$ax(statements);
+      B.JSArray_methods.addAll$1(t4, t1.getRange$2(statements, 0, index));
+      B.JSArray_methods.addAll$1(t3, t1.getRange$2(statements, index, t1.get$length(statements)));
+    },
+    $signature: 431
+  };
+  A._EvaluateVisitor__extendModules_closure3.prototype = {
+    call$1(target) {
+      return !this.originalSelectors.contains$1(0, target);
+    },
+    $signature: 15
+  };
+  A._EvaluateVisitor__extendModules_closure4.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_ExtensionStore_2);
+    },
+    $signature: 234
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure3.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitAtRootRule_closure4.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure11.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        t2 = t1._evaluate0$_assertInModule$2(t1._evaluate0$__parent, "__parent");
+      t1._evaluate0$__parent = this.newParent;
+      t1._evaluate0$_environment.scope$1$2$when(callback, this.node.hasDeclarations, type$.void);
+      t1._evaluate0$__parent = t2;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure12.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        oldAtRootExcludingStyleRule = t1._evaluate0$_atRootExcludingStyleRule;
+      t1._evaluate0$_atRootExcludingStyleRule = true;
+      this.innerScope.call$1(callback);
+      t1._evaluate0$_atRootExcludingStyleRule = oldAtRootExcludingStyleRule;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure13.prototype = {
+    call$1(callback) {
+      return this.$this._evaluate0$_withMediaQueries$3(null, null, new A._EvaluateVisitor__scopeForAtRoot__closure1(this.innerScope, callback));
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot__closure1.prototype = {
+    call$0() {
+      return this.innerScope.call$1(this.callback);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure14.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        wasInKeyframes = t1._evaluate0$_inKeyframes;
+      t1._evaluate0$_inKeyframes = false;
+      this.innerScope.call$1(callback);
+      t1._evaluate0$_inKeyframes = wasInKeyframes;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure15.prototype = {
+    call$1($parent) {
+      return $parent instanceof A.ModifiableCssAtRule0;
+    },
+    $signature: 232
+  };
+  A._EvaluateVisitor__scopeForAtRoot_closure16.prototype = {
+    call$1(callback) {
+      var t1 = this.$this,
+        wasInUnknownAtRule = t1._evaluate0$_inUnknownAtRule;
+      t1._evaluate0$_inUnknownAtRule = false;
+      this.innerScope.call$1(callback);
+      t1._evaluate0$_inUnknownAtRule = wasInUnknownAtRule;
+    },
+    $signature: 35
+  };
+  A._EvaluateVisitor_visitContentRule_closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.content.declaration.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+      return null;
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitDeclaration_closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this._box_0.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitEachRule_closure5.prototype = {
+    call$1(value) {
+      var t1 = this.$this,
+        t2 = this.nodeWithSpan;
+      return t1._evaluate0$_environment.setLocalVariable$3(this._box_0.variable, t1._evaluate0$_withoutSlash$2(value, t2), t2);
+    },
+    $signature: 63
+  };
+  A._EvaluateVisitor_visitEachRule_closure6.prototype = {
+    call$1(value) {
+      return this.$this._evaluate0$_setMultipleVariables$3(this._box_0.variables, value, this.nodeWithSpan);
+    },
+    $signature: 63
+  };
+  A._EvaluateVisitor_visitEachRule_closure7.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      return t1._evaluate0$_handleReturn$2(_this.list.get$asList(), new A._EvaluateVisitor_visitEachRule__closure1(t1, _this.setVariables, _this.node));
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitEachRule__closure1.prototype = {
+    call$1(element) {
+      var t1;
+      this.setVariables.call$1(element);
+      t1 = this.$this;
+      return t1._evaluate0$_handleReturn$2(this.node.children, new A._EvaluateVisitor_visitEachRule___closure1(t1));
+    },
+    $signature: 190
+  };
+  A._EvaluateVisitor_visitEachRule___closure1.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 83
+  };
+  A._EvaluateVisitor_visitAtRule_closure5.prototype = {
+    call$1(value) {
+      return this.$this._evaluate0$_interpolationToValue$3$trim$warnForColor(value, true, true);
+    },
+    $signature: 434
+  };
+  A._EvaluateVisitor_visitAtRule_closure6.prototype = {
+    call$0() {
+      var t2, t3, _i, _this = this,
+        t1 = _this.$this,
+        styleRule = t1._evaluate0$_atRootExcludingStyleRule ? null : t1._evaluate0$_styleRuleIgnoringAtRoot;
+      if (styleRule == null || t1._evaluate0$_inKeyframes || J.$eq$(_this.name.value, "font-face"))
+        for (t2 = _this.children, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t2[_i].accept$1(t1);
+      else
+        t1._evaluate0$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$0(styleRule._style_rule0$_selector, styleRule.span, false, styleRule.originalSelector), new A._EvaluateVisitor_visitAtRule__closure1(t1, _this.children), false, type$.ModifiableCssStyleRule_2, type$.Null);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitAtRule__closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitAtRule_closure7.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitForRule_closure9.prototype = {
+    call$0() {
+      return this.node.from.accept$1(this.$this).assertNumber$0();
+    },
+    $signature: 240
+  };
+  A._EvaluateVisitor_visitForRule_closure10.prototype = {
+    call$0() {
+      return this.node.to.accept$1(this.$this).assertNumber$0();
+    },
+    $signature: 240
+  };
+  A._EvaluateVisitor_visitForRule_closure11.prototype = {
+    call$0() {
+      return this.fromNumber.assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure12.prototype = {
+    call$0() {
+      var t1 = this.fromNumber;
+      return this.toNumber.coerce$2(t1.get$numeratorUnits(t1), t1.get$denominatorUnits(t1)).assertInt$0();
+    },
+    $signature: 10
+  };
+  A._EvaluateVisitor_visitForRule_closure13.prototype = {
+    call$0() {
+      var i, t3, t4, t5, t6, t7, t8, _0_0, _this = this,
+        t1 = _this.$this,
+        t2 = _this.node,
+        nodeWithSpan = t1._evaluate0$_expressionNode$1(t2.from);
+      for (i = _this.from, t3 = _this._box_0, t4 = _this.direction, t5 = t2.variable, t6 = _this.fromNumber, t2 = t2.children; i !== t3.to; i += t4) {
+        t7 = t1._evaluate0$_environment;
+        t8 = t6.get$numeratorUnits(t6);
+        t7.setLocalVariable$3(t5, A.SassNumber_SassNumber$withUnits0(i, t6.get$denominatorUnits(t6), t8), nodeWithSpan);
+        _0_0 = t1._evaluate0$_handleReturn$2(t2, new A._EvaluateVisitor_visitForRule__closure1(t1));
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitForRule__closure1.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 83
+  };
+  A._EvaluateVisitor_visitForwardRule_closure3.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._evaluate0$_registerCommentsForModule$1(module);
+      this.$this._evaluate0$_environment.forwardModule$2(module, this.node);
+    },
+    $signature: 87
+  };
+  A._EvaluateVisitor_visitForwardRule_closure4.prototype = {
+    call$2(module, firstLoad) {
+      if (firstLoad)
+        this.$this._evaluate0$_registerCommentsForModule$1(module);
+      this.$this._evaluate0$_environment.forwardModule$2(module, this.node);
+    },
+    $signature: 87
+  };
+  A._EvaluateVisitor__registerCommentsForModule_closure1.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_CssComment_2);
+    },
+    $signature: 228
+  };
+  A._EvaluateVisitor_visitIfRule_closure1.prototype = {
+    call$1(clause) {
+      var t1 = this.$this;
+      return t1._evaluate0$_environment.scope$1$3$semiGlobal$when(new A._EvaluateVisitor_visitIfRule__closure1(t1, clause), true, clause.hasDeclarations, type$.nullable_Value_2);
+    },
+    $signature: 436
+  };
+  A._EvaluateVisitor_visitIfRule__closure1.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      return t1._evaluate0$_handleReturn$2(this.clause.children, new A._EvaluateVisitor_visitIfRule___closure1(t1));
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitIfRule___closure1.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 83
+  };
+  A._EvaluateVisitor__visitDynamicImport_closure1.prototype = {
+    call$0() {
+      var t1, t2, _0_0, stylesheet, importer, isDependency, url, t3, oldImporter, oldInDependency, loadsUserDefinedModules, children, t4, t5, t6, t7, t8, t9, t10, environment, module, visitor, _box_0 = {};
+      _box_0.isDependency = _box_0.importer = _box_0.stylesheet = null;
+      t1 = this.$this;
+      t2 = this.$import;
+      _0_0 = t1._evaluate0$_loadStylesheet$3$forImport(t2.urlString, t2.span, true);
+      stylesheet = _box_0.stylesheet = _0_0._0;
+      importer = _0_0._1;
+      _box_0.importer = importer;
+      isDependency = _0_0._2;
+      _box_0.isDependency = isDependency;
+      url = stylesheet.span.file.url;
+      if (url != null) {
+        t3 = t1._evaluate0$_activeModules;
+        if (t3.containsKey$1(url)) {
+          t2 = A.NullableExtension_andThen0(t3.$index(0, url), new A._EvaluateVisitor__visitDynamicImport__closure7(t1));
+          throw A.wrapException(t2 == null ? t1._evaluate0$_exception$1("This file is already being loaded.") : t2);
+        }
+        t3.$indexSet(0, url, t2);
+      }
+      t2 = stylesheet._stylesheet1$_uses;
+      t3 = type$.UnmodifiableListView_UseRule_2;
+      if (new A.UnmodifiableListView(t2, t3).get$length(0) === 0 && new A.UnmodifiableListView(stylesheet._stylesheet1$_forwards, type$.UnmodifiableListView_ForwardRule_2).get$length(0) === 0) {
+        oldImporter = t1._evaluate0$_importer;
+        t2 = t1._evaluate0$_assertInModule$2(t1._evaluate0$__stylesheet, "_stylesheet");
+        oldInDependency = t1._evaluate0$_inDependency;
+        t1._evaluate0$_importer = importer;
+        t1._evaluate0$__stylesheet = stylesheet;
+        t1._evaluate0$_inDependency = isDependency;
+        t1.visitStylesheet$1(stylesheet);
+        t1._evaluate0$_importer = oldImporter;
+        t1._evaluate0$__stylesheet = t2;
+        t1._evaluate0$_inDependency = oldInDependency;
+        t1._evaluate0$_activeModules.remove$1(0, url);
+        return;
+      }
+      t2 = new A.UnmodifiableListView(t2, t3);
+      if (!t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure8())) {
+        t2 = new A.UnmodifiableListView(stylesheet._stylesheet1$_forwards, type$.UnmodifiableListView_ForwardRule_2);
+        loadsUserDefinedModules = t2.any$1(t2, new A._EvaluateVisitor__visitDynamicImport__closure9());
+      } else
+        loadsUserDefinedModules = true;
+      children = A._Cell$();
+      t2 = t1._evaluate0$_environment;
+      t3 = type$.String;
+      t4 = type$.Module_Callable_2;
+      t5 = type$.AstNode_2;
+      t6 = A._setArrayType([], type$.JSArray_Module_Callable_2);
+      t7 = t2._environment0$_variables;
+      t7 = A._setArrayType(t7.slice(0), A._arrayInstanceType(t7));
+      t8 = t2._environment0$_variableNodes;
+      t8 = A._setArrayType(t8.slice(0), A._arrayInstanceType(t8));
+      t9 = t2._environment0$_functions;
+      t9 = A._setArrayType(t9.slice(0), A._arrayInstanceType(t9));
+      t10 = t2._environment0$_mixins;
+      t10 = A._setArrayType(t10.slice(0), A._arrayInstanceType(t10));
+      environment = A.Environment$_0(A.LinkedHashMap_LinkedHashMap$_empty(t3, t4), A.LinkedHashMap_LinkedHashMap$_empty(t3, t5), A.LinkedHashMap_LinkedHashMap$_empty(t4, t5), t2._environment0$_importedModules, null, null, t6, t7, t8, t9, t10, t2._environment0$_content);
+      t1._evaluate0$_withEnvironment$2(environment, new A._EvaluateVisitor__visitDynamicImport__closure10(_box_0, t1, loadsUserDefinedModules, environment, children));
+      module = environment.toDummyModule$0();
+      t1._evaluate0$_environment.importForwards$1(module);
+      if (loadsUserDefinedModules) {
+        if (module.transitivelyContainsCss)
+          t1._evaluate0$_combineCss$2$clone(module, module.transitivelyContainsExtensions).accept$1(t1);
+        visitor = new A._ImportedCssVisitor1(t1);
+        for (t2 = J.get$iterator$ax(children._readLocal$0()); t2.moveNext$0();)
+          t2.get$current(t2).accept$1(visitor);
+      }
+      t1._evaluate0$_activeModules.remove$1(0, url);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure7.prototype = {
+    call$1(previousLoad) {
+      return this.$this._evaluate0$_multiSpanException$3("This file is already being loaded.", "new load", A.LinkedHashMap_LinkedHashMap$_literal([previousLoad.get$span(previousLoad), "original load"], type$.FileSpan, type$.String));
+    },
+    $signature: 95
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure8.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 227
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure9.prototype = {
+    call$1(rule) {
+      return rule.url.get$scheme() !== "sass";
+    },
+    $signature: 226
+  };
+  A._EvaluateVisitor__visitDynamicImport__closure10.prototype = {
+    call$0() {
+      var t7, t8, _this = this,
+        t1 = _this.$this,
+        oldImporter = t1._evaluate0$_importer,
+        t2 = t1._evaluate0$_assertInModule$2(t1._evaluate0$__stylesheet, "_stylesheet"),
+        t3 = t1._evaluate0$_assertInModule$2(t1._evaluate0$__root, "_root"),
+        t4 = t1._evaluate0$_assertInModule$2(t1._evaluate0$__parent, "__parent"),
+        t5 = t1._evaluate0$_assertInModule$2(t1._evaluate0$__endOfImports, "_endOfImports"),
+        oldOutOfOrderImports = t1._evaluate0$_outOfOrderImports,
+        oldConfiguration = t1._evaluate0$_configuration,
+        oldInDependency = t1._evaluate0$_inDependency,
+        t6 = _this._box_0;
+      t1._evaluate0$_importer = t6.importer;
+      t7 = t6.stylesheet;
+      t1._evaluate0$__stylesheet = t7;
+      t8 = _this.loadsUserDefinedModules;
+      if (t8) {
+        t7 = A.ModifiableCssStylesheet$0(t7.span);
+        t1._evaluate0$__root = t7;
+        t1._evaluate0$__parent = t1._evaluate0$_assertInModule$2(t7, "_root");
+        t1._evaluate0$__endOfImports = 0;
+        t1._evaluate0$_outOfOrderImports = null;
+      }
+      t1._evaluate0$_inDependency = t6.isDependency;
+      t7 = new A.UnmodifiableListView(t6.stylesheet._stylesheet1$_forwards, type$.UnmodifiableListView_ForwardRule_2);
+      if (!t7.get$isEmpty(t7))
+        t1._evaluate0$_configuration = _this.environment.toImplicitConfiguration$0();
+      t1.visitStylesheet$1(t6.stylesheet);
+      t6 = t8 ? t1._evaluate0$_addOutOfOrderImports$0() : A._setArrayType([], type$.JSArray_ModifiableCssNode_2);
+      _this.children.__late_helper$_value = t6;
+      t1._evaluate0$_importer = oldImporter;
+      t1._evaluate0$__stylesheet = t2;
+      if (t8) {
+        t1._evaluate0$__root = t3;
+        t1._evaluate0$__parent = t4;
+        t1._evaluate0$__endOfImports = t5;
+        t1._evaluate0$_outOfOrderImports = oldOutOfOrderImports;
+      }
+      t1._evaluate0$_configuration = oldConfiguration;
+      t1._evaluate0$_inDependency = oldInDependency;
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__applyMixin_closure3.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      t1._evaluate0$_environment.asMixin$1(new A._EvaluateVisitor__applyMixin__closure4(t1, _this.$arguments, _this.mixin, _this.nodeWithSpanWithoutContent));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin__closure4.prototype = {
+    call$0() {
+      var _this = this;
+      _this.$this._evaluate0$_runBuiltInCallable$3(_this.$arguments, _this.mixin, _this.nodeWithSpanWithoutContent);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin_closure4.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this;
+      t1._evaluate0$_environment.withContent$2(_this.contentCallable, new A._EvaluateVisitor__applyMixin__closure3(t1, _this.mixin, _this.nodeWithSpanWithoutContent));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor__applyMixin__closure3.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._evaluate0$_environment.asMixin$1(new A._EvaluateVisitor__applyMixin___closure1(t1, this.mixin, this.nodeWithSpanWithoutContent));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin___closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, t4, _i;
+      for (t1 = this.mixin.declaration.children, t2 = t1.length, t3 = this.$this, t4 = this.nodeWithSpanWithoutContent, _i = 0; _i < t2; ++_i)
+        t3._evaluate0$_addErrorSpan$2(t4, new A._EvaluateVisitor__applyMixin____closure1(t3, t1[_i]));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__applyMixin____closure1.prototype = {
+    call$0() {
+      return this.statement.accept$1(this.$this);
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure5.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._evaluate0$_environment.getMixin$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 88
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure6.prototype = {
+    call$1($content) {
+      var t1 = this.$this;
+      return new A.UserDefinedCallable0($content, t1._evaluate0$_environment.closure$0(), t1._evaluate0$_inDependency, type$.UserDefinedCallable_Environment_2);
+    },
+    $signature: 437
+  };
+  A._EvaluateVisitor_visitIncludeRule_closure7.prototype = {
+    call$0() {
+      return this.node.get$spanWithoutContent();
+    },
+    $signature: 26
+  };
+  A._EvaluateVisitor_visitMediaRule_closure5.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._evaluate0$_mergeMediaQueries$2(mediaQueries, this.queries);
+    },
+    $signature: 101
+  };
+  A._EvaluateVisitor_visitMediaRule_closure6.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.mergedQueries;
+      if (t2 == null)
+        t2 = _this.queries;
+      t1._evaluate0$_withMediaQueries$3(t2, _this.mergedSources, new A._EvaluateVisitor_visitMediaRule__closure1(t1, _this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitMediaRule__closure1.prototype = {
+    call$0() {
+      var t2, t3, _i,
+        t1 = this.$this,
+        _0_0 = t1._evaluate0$_atRootExcludingStyleRule ? null : t1._evaluate0$_styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._evaluate0$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitMediaRule___closure1(t1, this.node), false, type$.ModifiableCssStyleRule_2, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t2[_i].accept$1(t1);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitMediaRule___closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitMediaRule_closure7.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule0)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule0 && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitStyleRule_closure9.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitStyleRule_closure10.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitStyleRule_closure12.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._evaluate0$_withStyleRule$2(this.rule, new A._EvaluateVisitor_visitStyleRule__closure1(t1, this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitStyleRule__closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitStyleRule_closure11.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitStyleRule_closure13.prototype = {
+    call$1(child) {
+      return child instanceof A.ModifiableCssComment0;
+    },
+    $signature: 108
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure3.prototype = {
+    call$0() {
+      var t2, t3, _i,
+        t1 = this.$this,
+        _0_0 = t1._evaluate0$_atRootExcludingStyleRule ? null : t1._evaluate0$_styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._evaluate0$_withParent$2$2(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitSupportsRule__closure1(t1, this.node), type$.ModifiableCssStyleRule_2, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.length, _i = 0; _i < t3; ++_i)
+          t2[_i].accept$1(t1);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitSupportsRule__closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _i;
+      for (t1 = this.node.children, t2 = t1.length, t3 = this.$this, _i = 0; _i < t2; ++_i)
+        t1[_i].accept$1(t3);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitSupportsRule_closure4.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor__visitSupportsCondition_closure1.prototype = {
+    call$0() {
+      var t4,
+        t1 = this.$this,
+        t2 = this._box_0,
+        t3 = t2.declaration.name;
+      t3 = t1._evaluate0$_serialize$3$quote(t3.accept$1(t1), t3, true);
+      t4 = t2.declaration.get$isCustomProperty() ? "" : " ";
+      t2 = t2.declaration.value;
+      return "(" + t3 + ":" + t4 + t1._evaluate0$_serialize$3$quote(t2.accept$1(t1), t2, true) + ")";
+    },
+    $signature: 25
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure5.prototype = {
+    call$0() {
+      var t1 = this.$this._evaluate0$_environment,
+        t2 = this._box_0.override;
+      t1.setVariable$4$global(this.node.name, t2.value, t2.assignmentNode, true);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure6.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._evaluate0$_environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitVariableDeclaration_closure7.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.node;
+      t1._evaluate0$_environment.setVariable$5$global$namespace(t2.name, this.value, t1._evaluate0$_expressionNode$1(t2.expression), t2.isGlobal, t2.namespace);
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitUseRule_closure1.prototype = {
+    call$2(module, firstLoad) {
+      var t1, t2, t3, _0_0, t4, t5, span;
+      if (firstLoad)
+        this.$this._evaluate0$_registerCommentsForModule$1(module);
+      t1 = this.$this._evaluate0$_environment;
+      t2 = this.node;
+      t3 = t2.namespace;
+      if (t3 == null) {
+        t1._environment0$_globalModules.$indexSet(0, module, t2);
+        t1._environment0$_allModules.push(module);
+        _0_0 = A.IterableExtension_firstWhereOrNull(J.get$keys$z(B.JSArray_methods.get$first(t1._environment0$_variables)), module.get$variables().get$containsKey());
+        if (_0_0 != null)
+          A.throwExpression(A.SassScriptException$0(string$.This_ma + _0_0 + '".', null));
+      } else {
+        t4 = t1._environment0$_modules;
+        if (t4.containsKey$1(t3)) {
+          t5 = t1._environment0$_namespaceNodes.$index(0, t3);
+          span = t5 == null ? null : t5.span;
+          t5 = A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String);
+          if (span != null)
+            t5.$indexSet(0, span, "original @use");
+          A.throwExpression(A.MultiSpanSassScriptException$0(string$.There_ + t3 + '".', "new @use", t5));
+        }
+        t4.$indexSet(0, t3, module);
+        t1._environment0$_namespaceNodes.$indexSet(0, t3, t2);
+        t1._environment0$_allModules.push(module);
+      }
+    },
+    $signature: 87
+  };
+  A._EvaluateVisitor_visitWarnRule_closure1.prototype = {
+    call$0() {
+      return this.node.expression.accept$1(this.$this);
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor_visitWhileRule_closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, _0_0;
+      for (t1 = this.node, t2 = t1.condition, t3 = this.$this, t1 = t1.children; t2.accept$1(t3).get$isTruthy();) {
+        _0_0 = t3._evaluate0$_handleReturn$2(t1, new A._EvaluateVisitor_visitWhileRule__closure1(t3));
+        if (_0_0 != null)
+          return _0_0;
+      }
+      return null;
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitWhileRule__closure1.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 83
+  };
+  A._EvaluateVisitor_visitBinaryOperationExpression_closure1.prototype = {
+    call$0() {
+      var t1 = this.node,
+        t2 = this.$this,
+        left = t1.left.accept$1(t2);
+      switch (t1.operator) {
+        case B.BinaryOperator_wdM0:
+          t1 = t1.right.accept$1(t2);
+          t1 = new A.SassString0(A.serializeValue0(left, false, true) + "=" + A.serializeValue0(t1, false, true), false);
+          break;
+        case B.BinaryOperator_qNM0:
+          t1 = left.get$isTruthy() ? left : t1.right.accept$1(t2);
+          break;
+        case B.BinaryOperator_eDt0:
+          t1 = left.get$isTruthy() ? t1.right.accept$1(t2) : left;
+          break;
+        case B.BinaryOperator_g8k0:
+          t1 = left.$eq(0, t1.right.accept$1(t2)) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+          break;
+        case B.BinaryOperator_icU0:
+          t1 = !left.$eq(0, t1.right.accept$1(t2)) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+          break;
+        case B.BinaryOperator_bEa0:
+          t1 = left.greaterThan$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_oEm0:
+          t1 = left.greaterThanOrEquals$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_miq0:
+          t1 = left.lessThan$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_SPQ0:
+          t1 = left.lessThanOrEquals$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_u150:
+          t1 = left.plus$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_SjO0:
+          t1 = left.minus$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_2No0:
+          t1 = left.times$1(t1.right.accept$1(t2));
+          break;
+        case B.BinaryOperator_U770:
+          t1 = t2._evaluate0$_slash$3(left, t1.right.accept$1(t2), t1);
+          break;
+        case B.BinaryOperator_KNx0:
+          t1 = left.modulo$1(t1.right.accept$1(t2));
+          break;
+        default:
+          t1 = null;
+      }
+      return t1;
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor__slash_recommendation1.prototype = {
+    call$1(expression) {
+      var t1;
+      $label0$0: {
+        if (expression instanceof A.BinaryOperationExpression0 && B.BinaryOperator_U770 === expression.operator) {
+          t1 = "math.div(" + A.S(this.call$1(expression.left)) + ", " + A.S(this.call$1(expression.right)) + ")";
+          break $label0$0;
+        }
+        if (expression instanceof A.ParenthesizedExpression0) {
+          t1 = expression.expression.toString$0(0);
+          break $label0$0;
+        }
+        t1 = expression.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 135
+  };
+  A._EvaluateVisitor_visitVariableExpression_closure1.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._evaluate0$_environment.getVariable$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 40
+  };
+  A._EvaluateVisitor_visitUnaryOperationExpression_closure1.prototype = {
+    call$0() {
+      var t1, _this = this;
+      switch (_this.node.operator) {
+        case B.UnaryOperator_cLp0:
+          t1 = _this.operand.unaryPlus$0();
+          break;
+        case B.UnaryOperator_AiQ0:
+          t1 = _this.operand.unaryMinus$0();
+          break;
+        case B.UnaryOperator_SJr0:
+          t1 = new A.SassString0("/" + A.serializeValue0(_this.operand, false, true), false);
+          break;
+        case B.UnaryOperator_not_not_not0:
+          t1 = _this.operand.unaryNot$0();
+          break;
+        default:
+          t1 = null;
+      }
+      return t1;
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor_visitListExpression_closure1.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 438
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure5.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._evaluate0$_environment.getFunction$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 88
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure6.prototype = {
+    call$1(argument) {
+      return argument.accept$1(new A._IsCalculationSafeVisitor0());
+    },
+    $signature: 107
+  };
+  A._EvaluateVisitor_visitFunctionExpression_closure7.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._evaluate0$_runFunctionCallable$3(t1.$arguments, this._box_0.$function, t1);
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor__checkCalculationArguments_check1.prototype = {
+    call$1(maxArgs) {
+      var t1 = this.node,
+        t2 = t1.$arguments.positional.length;
+      if (t2 === 0)
+        throw A.wrapException(this.$this._evaluate0$_exception$2("Missing argument.", t1.span));
+      else if (maxArgs != null && t2 > maxArgs)
+        throw A.wrapException(this.$this._evaluate0$_exception$2("Only " + A.S(maxArgs) + " " + A.pluralize0("argument", maxArgs, null) + " allowed, but " + t2 + " " + A.pluralize0("was", t2, "were") + " passed.", t1.span));
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    $signature: 96
+  };
+  A._EvaluateVisitor__visitCalculationExpression_closure1.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this._box_0,
+        t3 = _this.inLegacySassFunction;
+      return A.SassCalculation_operateInternal0(t1._evaluate0$_binaryOperatorToCalculationOperator$2(t2.operator, _this.node), t1._evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2.left, t3), t1._evaluate0$_visitCalculationExpression$2$inLegacySassFunction(t2.right, t3), t3, !t1._evaluate0$_inSupportsDeclaration);
+    },
+    $signature: 80
+  };
+  A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure1.prototype = {
+    call$0() {
+      var t1 = this.node;
+      return this.$this._evaluate0$_runFunctionCallable$3(t1.$arguments, this.$function, t1);
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor__runUserDefinedCallable_closure1.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.callable;
+      return t1._evaluate0$_withEnvironment$2(t2.environment.closure$0(), new A._EvaluateVisitor__runUserDefinedCallable__closure1(t1, _this.evaluated, t2, _this.nodeWithSpan, _this.run, _this.V));
+    },
+    $signature() {
+      return this.V._eval$1("0()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable__closure1.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.V;
+      return t1._evaluate0$_environment.scope$1$1(new A._EvaluateVisitor__runUserDefinedCallable___closure1(t1, _this.evaluated, _this.callable, _this.nodeWithSpan, _this.run, t2), t2);
+    },
+    $signature() {
+      return this.V._eval$1("0()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable___closure1.prototype = {
+    call$0() {
+      var declaredArguments, t5, minLength, i, argument, t6, t7, value, t8, restArgument, rest, argumentList, result, argumentWord, _this = this,
+        t1 = _this.$this,
+        t2 = _this.evaluated._values,
+        t3 = _this.callable.declaration.$arguments,
+        t4 = _this.nodeWithSpan;
+      t1._evaluate0$_verifyArguments$4(J.get$length$asx(t2[2]), t2[0], t3, t4);
+      declaredArguments = t3.$arguments;
+      t5 = declaredArguments.length;
+      minLength = Math.min(J.get$length$asx(t2[2]), t5);
+      for (i = 0; i < minLength; ++i)
+        t1._evaluate0$_environment.setLocalVariable$3(declaredArguments[i].name, J.$index$asx(t2[2], i), J.$index$asx(t2[3], i));
+      for (i = J.get$length$asx(t2[2]); i < t5; ++i) {
+        argument = declaredArguments[i];
+        t6 = t2[0];
+        t7 = argument.name;
+        value = J.remove$1$z(t6, t7);
+        if (value == null) {
+          t6 = argument.defaultValue;
+          value = t1._evaluate0$_withoutSlash$2(t6.accept$1(t1), t1._evaluate0$_expressionNode$1(t6));
+        }
+        t6 = t1._evaluate0$_environment;
+        t8 = J.$index$asx(t2[1], t7);
+        if (t8 == null) {
+          t8 = argument.defaultValue;
+          t8.toString;
+          t8 = t1._evaluate0$_expressionNode$1(t8);
+        }
+        t6.setLocalVariable$3(t7, value, t8);
+      }
+      restArgument = t3.restArgument;
+      if (restArgument != null) {
+        rest = J.get$length$asx(t2[2]) > t5 ? J.sublist$1$ax(t2[2], t5) : B.List_empty19;
+        t5 = t2[0];
+        t6 = t2[4];
+        argumentList = A.SassArgumentList$0(rest, t5, t6 === B.ListSeparator_undecided_null_undecided0 ? B.ListSeparator_ECn0 : t6);
+        t1._evaluate0$_environment.setLocalVariable$3(restArgument, argumentList, t4);
+      } else
+        argumentList = null;
+      result = _this.run.call$0();
+      if (argumentList == null)
+        return result;
+      t5 = t2[0].__js_helper$_length;
+      if (t5 === 0)
+        return result;
+      if (argumentList._argument_list$_wereKeywordsAccessed)
+        return result;
+      argumentWord = A.pluralize0("argument", t5, null);
+      t2 = t2[0];
+      t5 = A._instanceType(t2)._eval$1("LinkedHashMapKeyIterable<1>");
+      throw A.wrapException(A.MultiSpanSassRuntimeException$0("No " + argumentWord + " named " + A.toSentence0(A.MappedIterable_MappedIterable(new A.LinkedHashMapKeyIterable(t2, t5), new A._EvaluateVisitor__runUserDefinedCallable____closure1(), t5._eval$1("Iterable.E"), type$.Object), "or") + ".", t4.get$span(t4), "invocation", A.LinkedHashMap_LinkedHashMap$_literal([t3.get$spanWithName(), "declaration"], type$.FileSpan, type$.String), t1._evaluate0$_stackTrace$1(t4.get$span(t4)), null));
+    },
+    $signature() {
+      return this.V._eval$1("0()");
+    }
+  };
+  A._EvaluateVisitor__runUserDefinedCallable____closure1.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__runFunctionCallable_closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, t4, _i, $returnValue;
+      for (t1 = this.callable.declaration, t2 = t1.children, t3 = t2.length, t4 = this.$this, _i = 0; _i < t3; ++_i) {
+        $returnValue = t2[_i].accept$1(t4);
+        if ($returnValue instanceof A.Value0)
+          return $returnValue;
+      }
+      throw A.wrapException(t4._evaluate0$_exception$2("Function finished without @return.", t1.span));
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure5.prototype = {
+    call$0() {
+      return this._box_0.overload.verify$2(J.get$length$asx(this.evaluated._values[2]), this.namedSet);
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure6.prototype = {
+    call$0() {
+      return this._box_0.callback.call$1(this.evaluated._values[2]);
+    },
+    $signature: 43
+  };
+  A._EvaluateVisitor__runBuiltInCallable_closure7.prototype = {
+    call$1($name) {
+      return "$" + $name;
+    },
+    $signature: 5
+  };
+  A._EvaluateVisitor__evaluateArguments_closure7.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 41
+  };
+  A._EvaluateVisitor__evaluateArguments_closure8.prototype = {
+    call$1(value) {
+      return this.$this._evaluate0$_withoutSlash$2(value, this.restNodeForSpan);
+    },
+    $signature: 41
+  };
+  A._EvaluateVisitor__evaluateArguments_closure9.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restNodeForSpan;
+      _this.named.$indexSet(0, key, _this.$this._evaluate0$_withoutSlash$2(value, t1));
+      _this.namedNodes.$indexSet(0, key, t1);
+    },
+    $signature: 100
+  };
+  A._EvaluateVisitor__evaluateArguments_closure10.prototype = {
+    call$1(value) {
+      return value;
+    },
+    $signature: 41
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure7.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression0(value, t1.get$span(t1));
+    },
+    $signature: 61
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure8.prototype = {
+    call$1(value) {
+      var t1 = this.restArgs;
+      return new A.ValueExpression0(this.$this._evaluate0$_withoutSlash$2(value, this.restNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 61
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure9.prototype = {
+    call$2(key, value) {
+      var _this = this,
+        t1 = _this.restArgs;
+      _this.named.$indexSet(0, key, new A.ValueExpression0(_this.$this._evaluate0$_withoutSlash$2(value, _this.restNodeForSpan), t1.get$span(t1)));
+    },
+    $signature: 100
+  };
+  A._EvaluateVisitor__evaluateMacroArguments_closure10.prototype = {
+    call$1(value) {
+      var t1 = this.keywordRestArgs;
+      return new A.ValueExpression0(this.$this._evaluate0$_withoutSlash$2(value, this.keywordRestNodeForSpan), t1.get$span(t1));
+    },
+    $signature: 61
+  };
+  A._EvaluateVisitor__addRestMap_closure1.prototype = {
+    call$2(key, value) {
+      var t2, _this = this,
+        t1 = _this.$this;
+      if (key instanceof A.SassString0)
+        _this.values.$indexSet(0, key._string0$_text, _this.convert.call$1(t1._evaluate0$_withoutSlash$2(value, _this.expressionNode)));
+      else {
+        t2 = _this.nodeWithSpan;
+        throw A.wrapException(t1._evaluate0$_exception$2(string$.Variab_ + key.toString$0(0) + " is not a string in " + _this.map.toString$0(0) + ".", t2.get$span(t2)));
+      }
+    },
+    $signature: 94
+  };
+  A._EvaluateVisitor__verifyArguments_closure1.prototype = {
+    call$0() {
+      return this.$arguments.verify$2(this.positional, new A.MapKeySet(this.named, type$.MapKeySet_String));
+    },
+    $signature: 0
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure3.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssAtRule_closure4.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure3.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssKeyframeBlock_closure4.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure5.prototype = {
+    call$1(mediaQueries) {
+      return this.$this._evaluate0$_mergeMediaQueries$2(mediaQueries, this.node.queries);
+    },
+    $signature: 101
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure6.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.mergedQueries;
+      if (t2 == null)
+        t2 = _this.node.queries;
+      t1._evaluate0$_withMediaQueries$3(t2, _this.mergedSources, new A._EvaluateVisitor_visitCssMediaRule__closure1(t1, _this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssMediaRule__closure1.prototype = {
+    call$0() {
+      var t2, t3, t4,
+        t1 = this.$this,
+        _0_0 = t1._evaluate0$_atRootExcludingStyleRule ? null : t1._evaluate0$_styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._evaluate0$_withParent$2$3$scopeWhen(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssMediaRule___closure1(t1, this.node), false, type$.ModifiableCssStyleRule_2, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E"); t2.moveNext$0();) {
+          t4 = t2.__internal$_current;
+          (t4 == null ? t3._as(t4) : t4).accept$1(t1);
+        }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssMediaRule___closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssMediaRule_closure7.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule0)) {
+        t1 = this.mergedSources;
+        t1 = t1.get$isNotEmpty(t1) && node instanceof A.ModifiableCssMediaRule0 && B.JSArray_methods.every$1(node.queries, t1.get$contains(t1));
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure4.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      t1._evaluate0$_withStyleRule$2(this.rule, new A._EvaluateVisitor_visitCssStyleRule__closure1(t1, this.node));
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssStyleRule__closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssStyleRule_closure3.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure3.prototype = {
+    call$0() {
+      var t2, t3, t4,
+        t1 = this.$this,
+        _0_0 = t1._evaluate0$_atRootExcludingStyleRule ? null : t1._evaluate0$_styleRuleIgnoringAtRoot;
+      if (_0_0 != null)
+        t1._evaluate0$_withParent$2$2(A.ModifiableCssStyleRule$0(_0_0._style_rule0$_selector, _0_0.span, false, _0_0.originalSelector), new A._EvaluateVisitor_visitCssSupportsRule__closure1(t1, this.node), type$.ModifiableCssStyleRule_2, type$.Null);
+      else
+        for (t2 = this.node.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t3 = t3._eval$1("ListBase.E"); t2.moveNext$0();) {
+          t4 = t2.__internal$_current;
+          (t4 == null ? t3._as(t4) : t4).accept$1(t1);
+        }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssSupportsRule__closure1.prototype = {
+    call$0() {
+      var t1, t2, t3, t4;
+      for (t1 = this.node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t3 = this.$this, t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t4 = t1.__internal$_current;
+        (t4 == null ? t2._as(t4) : t4).accept$1(t3);
+      }
+    },
+    $signature: 1
+  };
+  A._EvaluateVisitor_visitCssSupportsRule_closure4.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluateVisitor__performInterpolationHelper_closure1.prototype = {
+    call$1(targetLocations) {
+      return A.InterpolationMap$0(this.interpolation, targetLocations);
+    },
+    $signature: 219
+  };
+  A._EvaluateVisitor__serialize_closure1.prototype = {
+    call$0() {
+      return A.serializeValue0(this.value, false, this.quote);
+    },
+    $signature: 25
+  };
+  A._EvaluateVisitor__expressionNode_closure1.prototype = {
+    call$0() {
+      var t1 = this.expression;
+      return this.$this._evaluate0$_environment.getVariableNode$2$namespace(t1.name, t1.namespace);
+    },
+    $signature: 218
+  };
+  A._EvaluateVisitor__withoutSlash_recommendation1.prototype = {
+    call$1(number) {
+      var t1, before, after,
+        _1_0 = number.asSlash;
+      $label0$0: {
+        if (type$.Record_2_nullable_Object_and_nullable_Object._is(_1_0)) {
+          t1 = type$.SassNumber_2;
+          before = t1._as(_1_0._0);
+          after = t1._as(_1_0._1);
+          t1 = "math.div(" + A.S(this.call$1(before)) + ", " + A.S(this.call$1(after)) + ")";
+          break $label0$0;
+        }
+        t1 = A.serializeValue0(number, true, true);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 217
+  };
+  A._EvaluateVisitor__stackFrame_closure1.prototype = {
+    call$1(url) {
+      var t1 = this.$this._evaluate0$_importCache;
+      t1 = t1 == null ? null : t1.humanize$1(url);
+      return t1 == null ? url : t1;
+    },
+    $signature: 46
+  };
+  A._ImportedCssVisitor1.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.isChildless ? null : new A._ImportedCssVisitor_visitCssAtRule_closure1();
+      this._evaluate0$_visitor._evaluate0$_addChild$2$through(node, t1);
+    },
+    visitCssComment$1(node) {
+      return this._evaluate0$_visitor._evaluate0$_addChild$1(node);
+    },
+    visitCssDeclaration$1(node) {
+    },
+    visitCssImport$1(node) {
+      var t2,
+        _s13_ = "_endOfImports",
+        t1 = this._evaluate0$_visitor;
+      if (t1._evaluate0$_assertInModule$2(t1._evaluate0$__parent, "__parent") !== t1._evaluate0$_assertInModule$2(t1._evaluate0$__root, "_root"))
+        t1._evaluate0$_addChild$1(node);
+      else if (t1._evaluate0$_assertInModule$2(t1._evaluate0$__endOfImports, _s13_) === J.get$length$asx(t1._evaluate0$_assertInModule$2(t1._evaluate0$__root, "_root").children._collection$_source)) {
+        t1._evaluate0$_addChild$1(node);
+        t1._evaluate0$__endOfImports = t1._evaluate0$_assertInModule$2(t1._evaluate0$__endOfImports, _s13_) + 1;
+      } else {
+        t2 = t1._evaluate0$_outOfOrderImports;
+        (t2 == null ? t1._evaluate0$_outOfOrderImports = A._setArrayType([], type$.JSArray_ModifiableCssImport_2) : t2).push(node);
+      }
+    },
+    visitCssKeyframeBlock$1(node) {
+    },
+    visitCssMediaRule$1(node) {
+      var t1 = this._evaluate0$_visitor,
+        mediaQueries = t1._evaluate0$_mediaQueries;
+      t1._evaluate0$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssMediaRule_closure1(mediaQueries == null || t1._evaluate0$_mergeMediaQueries$2(mediaQueries, node.queries) != null));
+    },
+    visitCssStyleRule$1(node) {
+      return this._evaluate0$_visitor._evaluate0$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssStyleRule_closure1());
+    },
+    visitCssStylesheet$1(node) {
+      var t1, t2, t3;
+      for (t1 = node.children, t2 = t1.$ti, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        (t3 == null ? t2._as(t3) : t3).accept$1(this);
+      }
+    },
+    visitCssSupportsRule$1(node) {
+      return this._evaluate0$_visitor._evaluate0$_addChild$2$through(node, new A._ImportedCssVisitor_visitCssSupportsRule_closure1());
+    }
+  };
+  A._ImportedCssVisitor_visitCssAtRule_closure1.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._ImportedCssVisitor_visitCssMediaRule_closure1.prototype = {
+    call$1(node) {
+      var t1;
+      if (!(node instanceof A.ModifiableCssStyleRule0))
+        t1 = this.hasBeenMerged && node instanceof A.ModifiableCssMediaRule0;
+      else
+        t1 = true;
+      return t1;
+    },
+    $signature: 8
+  };
+  A._ImportedCssVisitor_visitCssStyleRule_closure1.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._ImportedCssVisitor_visitCssSupportsRule_closure1.prototype = {
+    call$1(node) {
+      return node instanceof A.ModifiableCssStyleRule0;
+    },
+    $signature: 8
+  };
+  A._EvaluationContext1.prototype = {
+    get$currentCallableSpan() {
+      var _0_0 = this._evaluate0$_visitor._evaluate0$_callableNode;
+      if (_0_0 != null)
+        return _0_0.get$span(_0_0);
+      throw A.wrapException(A.StateError$(string$.No_Sasc));
+    },
+    warn$2(_, message, deprecation) {
+      var t1 = this._evaluate0$_visitor,
+        t2 = t1._evaluate0$_importSpan;
+      if (t2 == null) {
+        t2 = t1._evaluate0$_callableNode;
+        t2 = t2 == null ? null : t2.get$span(t2);
+      }
+      t1._evaluate0$_warn$3(message, t2 == null ? this._evaluate0$_defaultWarnNodeWithSpan.span : t2, deprecation);
+    },
+    $isEvaluationContext0: 1
+  };
+  A.EveryCssVisitor0.prototype = {
+    visitCssAtRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssAtRule_closure0(this));
+    },
+    visitCssComment$1(node) {
+      return false;
+    },
+    visitCssDeclaration$1(node) {
+      return false;
+    },
+    visitCssImport$1(node) {
+      return false;
+    },
+    visitCssKeyframeBlock$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssKeyframeBlock_closure0(this));
+    },
+    visitCssMediaRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssMediaRule_closure0(this));
+    },
+    visitCssStyleRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssStyleRule_closure0(this));
+    },
+    visitCssStylesheet$1(node) {
+      return J.every$1$ax(node.get$children(node), new A.EveryCssVisitor_visitCssStylesheet_closure0(this));
+    },
+    visitCssSupportsRule$1(node) {
+      var t1 = node.children;
+      return t1.every$1(t1, new A.EveryCssVisitor_visitCssSupportsRule_closure0(this));
+    }
+  };
+  A.EveryCssVisitor_visitCssAtRule_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 8
+  };
+  A.EveryCssVisitor_visitCssKeyframeBlock_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 8
+  };
+  A.EveryCssVisitor_visitCssMediaRule_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 8
+  };
+  A.EveryCssVisitor_visitCssStyleRule_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 8
+  };
+  A.EveryCssVisitor_visitCssStylesheet_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 8
+  };
+  A.EveryCssVisitor_visitCssSupportsRule_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature: 8
+  };
+  A._NodeException.prototype = {};
+  A.exceptionClass_closure.prototype = {
+    call$0() {
+      var jsClass = type$.JSClass._as(new self.Function("", "    return class Exception extends Error {\n      constructor(dartException, message) {\n        super(message);\n\n        // Define this as non-enumerable so that it doesn't show up when the\n        // exception hits the top level.\n        Object.defineProperty(this, '_dartException', {\n          value: dartException,\n          enumerable: false\n        });\n      }\n\n      toString() {\n        return this.message;\n      }\n    }\n  ").call$0());
+      A.defineGetter(jsClass, "name", null, "sass.Exception");
+      A.LinkedHashMap_LinkedHashMap$_literal(["sassMessage", new A.exceptionClass__closure(), "sassStack", new A.exceptionClass__closure0(), "span", new A.exceptionClass__closure1()], type$.String, type$.Function).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.exceptionClass__closure.prototype = {
+    call$1(exception) {
+      return J.get$_dartException$x(exception)._span_exception$_message;
+    },
+    $signature: 262
+  };
+  A.exceptionClass__closure0.prototype = {
+    call$1(exception) {
+      return J.get$trace$z(J.get$_dartException$x(exception)).toString$0(0);
+    },
+    $signature: 262
+  };
+  A.exceptionClass__closure1.prototype = {
+    call$1(exception) {
+      var t1 = J.get$_dartException$x(exception),
+        t2 = J.getInterceptor$z(t1);
+      return A.SourceSpanException.prototype.get$span.call(t2, t1);
+    },
+    $signature: 440
+  };
+  A.SassException0.prototype = {
+    get$trace(_) {
+      return A.Trace$(A._setArrayType([A.frameForSpan0(A.SourceSpanException.prototype.get$span.call(this, 0), "root stylesheet", null)], type$.JSArray_Frame), null);
+    },
+    get$span(_) {
+      return A.SourceSpanException.prototype.get$span.call(this, 0);
+    },
+    withAdditionalSpan$2(span, label) {
+      return A.MultiSpanSassException$0(this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(this, 0), "", A.LinkedHashMap_LinkedHashMap$_literal([span, label], type$.FileSpan, type$.String), this.loadedUrls);
+    },
+    withTrace$1(trace) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(this.loadedUrls, type$.Uri);
+      return new A.SassRuntimeException0(trace, t2, this._span_exception$_message, t1);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(loadedUrls, type$.Uri);
+      return new A.SassException0(t2, this._span_exception$_message, t1);
+    },
+    toString$1$color(_, color) {
+      var t2, _i, frame, t3, _this = this,
+        buffer = new A.StringBuffer(""),
+        t1 = "" + ("Error: " + _this._span_exception$_message + "\n");
+      buffer._contents = t1;
+      buffer._contents = t1 + A.SourceSpanException.prototype.get$span.call(_this, 0).highlight$1$color(color);
+      for (t1 = _this.get$trace(_this).toString$0(0).split("\n"), t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        frame = t1[_i];
+        if (J.get$length$asx(frame) === 0)
+          continue;
+        t3 = buffer._contents += "\n";
+        buffer._contents = t3 + ("  " + A.S(frame));
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    toString$0(_) {
+      return this.toString$1$color(0, null);
+    }
+  };
+  A.MultiSpanSassException0.prototype = {
+    withAdditionalSpan$2(span, label) {
+      var _this = this,
+        t1 = A.SourceSpanException.prototype.get$span.call(_this, 0),
+        t2 = A.LinkedHashMap_LinkedHashMap$of(_this.secondarySpans, type$.FileSpan, type$.String);
+      t2.$indexSet(0, span, label);
+      return A.MultiSpanSassException$0(_this._span_exception$_message, t1, _this.primaryLabel, t2, _this.loadedUrls);
+    },
+    withTrace$1(trace) {
+      var _this = this;
+      return A.MultiSpanSassRuntimeException$0(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, trace, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var _this = this;
+      return A.MultiSpanSassException$0(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, loadedUrls);
+    },
+    toString$1$color(_, color) {
+      var t1, t2, _i, frame, t3, _this = this,
+        useColor = color === true,
+        buffer = new A.StringBuffer("Error: " + _this._span_exception$_message + "\n");
+      A.NullableExtension_andThen0(A.Highlighter$multiple(A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, useColor, null, null).highlight$0(), buffer.get$write(buffer));
+      for (t1 = _this.get$trace(_this).toString$0(0).split("\n"), t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        frame = t1[_i];
+        if (J.get$length$asx(frame) === 0)
+          continue;
+        buffer._contents += "\n";
+        t3 = "  " + A.S(frame);
+        buffer._contents += t3;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    toString$0(_) {
+      return this.toString$1$color(0, null);
+    },
+    get$primaryLabel() {
+      return this.primaryLabel;
+    },
+    get$secondarySpans() {
+      return this.secondarySpans;
+    }
+  };
+  A.SassRuntimeException0.prototype = {
+    withAdditionalSpan$2(span, label) {
+      var _this = this;
+      return A.MultiSpanSassRuntimeException$0(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), "", A.LinkedHashMap_LinkedHashMap$_literal([span, label], type$.FileSpan, type$.String), _this.trace, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(loadedUrls, type$.Uri);
+      return new A.SassRuntimeException0(this.trace, t2, this._span_exception$_message, t1);
+    },
+    get$trace(receiver) {
+      return this.trace;
+    }
+  };
+  A.MultiSpanSassRuntimeException0.prototype = {
+    withAdditionalSpan$2(span, label) {
+      var _this = this,
+        t1 = A.SourceSpanException.prototype.get$span.call(_this, 0),
+        t2 = A.LinkedHashMap_LinkedHashMap$of(_this.secondarySpans, type$.FileSpan, type$.String);
+      t2.$indexSet(0, span, label);
+      return A.MultiSpanSassRuntimeException$0(_this._span_exception$_message, t1, _this.primaryLabel, t2, _this.trace, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var _this = this;
+      return A.MultiSpanSassRuntimeException$0(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, _this.trace, loadedUrls);
+    },
+    $isSassRuntimeException0: 1,
+    get$trace(receiver) {
+      return this.trace;
+    }
+  };
+  A.SassFormatException0.prototype = {
+    get$source() {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0);
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.get$file(t1)._decodedChars, 0, null), 0, null);
+    },
+    withAdditionalSpan$2(span, label) {
+      return A.MultiSpanSassFormatException$0(this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(this, 0), "", A.LinkedHashMap_LinkedHashMap$_literal([span, label], type$.FileSpan, type$.String), this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0),
+        t2 = A.Set_Set$unmodifiable(loadedUrls, type$.Uri);
+      return new A.SassFormatException0(t2, this._span_exception$_message, t1);
+    },
+    $isFormatException: 1,
+    $isSourceSpanFormatException: 1
+  };
+  A.MultiSpanSassFormatException0.prototype = {
+    get$source() {
+      var t1 = A.SourceSpanException.prototype.get$span.call(this, 0);
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.get$file(t1)._decodedChars, 0, null), 0, null);
+    },
+    withAdditionalSpan$2(span, label) {
+      var _this = this,
+        t1 = A.SourceSpanException.prototype.get$span.call(_this, 0),
+        t2 = A.LinkedHashMap_LinkedHashMap$of(_this.secondarySpans, type$.FileSpan, type$.String);
+      t2.$indexSet(0, span, label);
+      return A.MultiSpanSassFormatException$0(_this._span_exception$_message, t1, _this.primaryLabel, t2, _this.loadedUrls);
+    },
+    withLoadedUrls$1(loadedUrls) {
+      var _this = this;
+      return A.MultiSpanSassFormatException$0(_this._span_exception$_message, A.SourceSpanException.prototype.get$span.call(_this, 0), _this.primaryLabel, _this.secondarySpans, loadedUrls);
+    },
+    $isFormatException: 1,
+    $isSourceSpanFormatException: 1,
+    $isMultiSourceSpanFormatException: 1,
+    $isSassFormatException0: 1
+  };
+  A.SassScriptException0.prototype = {
+    withSpan$1(span) {
+      return new A.SassException0(B.Set_empty, this.message, span);
+    },
+    toString$0(_) {
+      return this.message + string$.x0a_BUG_;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A.MultiSpanSassScriptException0.prototype = {
+    withSpan$1(span) {
+      return A.MultiSpanSassException$0(this.message, span, this.primaryLabel, this.secondarySpans, null);
+    }
+  };
+  A.Exports.prototype = {};
+  A.LoggerNamespace.prototype = {};
+  A._IsCalculationSafeVisitor0.prototype = {
+    visitBinaryOperationExpression$1(node) {
+      var t1;
+      if (B.Set_mqKz0.contains$1(0, node.operator))
+        t1 = node.left.accept$1(this) || node.right.accept$1(this);
+      else
+        t1 = false;
+      return t1;
+    },
+    visitBooleanExpression$1(node) {
+      return false;
+    },
+    visitColorExpression$1(node) {
+      return false;
+    },
+    visitFunctionExpression$1(node) {
+      return true;
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return true;
+    },
+    visitIfExpression$1(node) {
+      return true;
+    },
+    visitListExpression$1(node) {
+      var t1;
+      if (node.separator === B.ListSeparator_nbm0)
+        if (!node.hasBrackets) {
+          t1 = node.contents;
+          t1 = t1.length > 1 && B.JSArray_methods.every$1(t1, new A._IsCalculationSafeVisitor_visitListExpression_closure0(this));
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    visitMapExpression$1(node) {
+      return false;
+    },
+    visitNullExpression$1(node) {
+      return false;
+    },
+    visitNumberExpression$1(node) {
+      return true;
+    },
+    visitParenthesizedExpression$1(node) {
+      return node.expression.accept$1(this);
+    },
+    visitSelectorExpression$1(node) {
+      return false;
+    },
+    visitStringExpression$1(node) {
+      var text, t1, t2;
+      if (node.hasQuotes)
+        return false;
+      text = node.text.get$initialPlain();
+      if (!B.JSString_methods.startsWith$1(text, "!"))
+        if (!B.JSString_methods.startsWith$1(text, "#")) {
+          t1 = text.length;
+          if ((1 >= t1 ? null : text.charCodeAt(1)) !== 43) {
+            t2 = (3 >= t1 ? null : text.charCodeAt(3)) !== 40;
+            t1 = t2;
+          } else
+            t1 = false;
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    visitSupportsExpression$1(node) {
+      return false;
+    },
+    visitUnaryOperationExpression$1(node) {
+      return false;
+    },
+    visitValueExpression$1(node) {
+      return false;
+    },
+    visitVariableExpression$1(node) {
+      return true;
+    }
+  };
+  A._IsCalculationSafeVisitor_visitListExpression_closure0.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 107
+  };
+  A._MakeExpressionCalculationSafe0.prototype = {
+    visitBinaryOperationExpression$1(node) {
+      var t1, t2, t3, t4;
+      if (node.operator === B.BinaryOperator_KNx0) {
+        t1 = A._setArrayType([node], type$.JSArray_Expression_2);
+        t2 = node.get$span(0);
+        t3 = type$.Expression_2;
+        t1 = A.List_List$unmodifiable(t1, t3);
+        t3 = A.ConstantMap_ConstantMap$from(B.Map_empty14, type$.String, t3);
+        t4 = node.get$span(0);
+        t1 = new A.FunctionExpression0("math", A.stringReplaceAllUnchecked("max", "_", "-"), "max", new A.ArgumentInvocation0(t1, t3, null, null, t2), t4);
+      } else
+        t1 = this.super$ReplaceExpressionVisitor$visitBinaryOperationExpression0(node);
+      return t1;
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return node;
+    },
+    visitUnaryOperationExpression$1(node) {
+      var t1,
+        _0_0 = node.operator;
+      $label0$0: {
+        if (B.UnaryOperator_cLp0 === _0_0) {
+          t1 = node.operand;
+          break $label0$0;
+        }
+        if (B.UnaryOperator_AiQ0 === _0_0) {
+          t1 = new A.BinaryOperationExpression0(B.BinaryOperator_2No0, new A.NumberExpression0(-1, null, node.span), node.operand, false);
+          break $label0$0;
+        }
+        t1 = this.super$ReplaceExpressionVisitor$visitUnaryOperationExpression0(node);
+        break $label0$0;
+      }
+      return t1;
+    }
+  };
+  A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor0.prototype = {};
+  A.ExtendRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitExtendRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.selector.toString$0(0),
+        t2 = this.isOptional ? " !optional" : "";
+      return "@extend " + t1 + t2 + ";";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Extension0.prototype = {
+    toString$0(_) {
+      var t1 = this.extender.toString$0(0),
+        t2 = this.target.toString$0(0),
+        t3 = this.isOptional ? " !optional" : "";
+      return t1 + " {@extend " + t2 + t3 + "}";
+    }
+  };
+  A.Extender0.prototype = {
+    assertCompatibleMediaContext$1(mediaContext) {
+      var expectedMediaContext,
+        extension = this._extension$_extension;
+      if (extension == null)
+        return;
+      expectedMediaContext = extension.mediaContext;
+      if (expectedMediaContext == null)
+        return;
+      if (mediaContext != null && B.C_ListEquality.equals$2(0, expectedMediaContext, mediaContext))
+        return;
+      throw A.wrapException(A.SassException$0(string$.You_ma, extension.span, null));
+    },
+    toString$0(_) {
+      return A.serializeSelector0(this.selector, true);
+    }
+  };
+  A.ExtensionStore0.prototype = {
+    get$isEmpty(_) {
+      return this._extension_store$_extensions.__js_helper$_length === 0;
+    },
+    get$simpleSelectors() {
+      return new A.MapKeySet(this._extension_store$_selectors, type$.MapKeySet_SimpleSelector_2);
+    },
+    extensionsWhereTarget$1(callback) {
+      return new A._SyncStarIterable(this.extensionsWhereTarget$body$ExtensionStore0(callback), type$._SyncStarIterable_Extension_2);
+    },
+    extensionsWhereTarget$body$ExtensionStore0($async$callback) {
+      var $async$self = this;
+      return function() {
+        var callback = $async$callback;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, t2, simple, sources, t3;
+        return function $async$extensionsWhereTarget$1($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = A.MapExtensions_get_pairs0($async$self._extension_store$_extensions, type$.SimpleSelector_2, type$.Map_ComplexSelector_Extension_2), t1 = t1.get$iterator(t1);
+              case 2:
+                // for condition
+                if (!t1.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 3;
+                  break;
+                }
+                t2 = t1.get$current(t1);
+                simple = t2._0;
+                sources = t2._1;
+                if (!callback.call$1(simple)) {
+                  // goto for condition
+                  $async$goto = 2;
+                  break;
+                }
+                t2 = sources.get$values(sources), t2 = t2.get$iterator(t2);
+              case 4:
+                // for condition
+                if (!t2.moveNext$0()) {
+                  // goto after for
+                  $async$goto = 5;
+                  break;
+                }
+                t3 = t2.get$current(t2);
+                $async$goto = t3 instanceof A.MergedExtension0 ? 6 : 8;
+                break;
+              case 6:
+                // then
+                t3 = t3.unmerge$0();
+                $async$goto = 9;
+                return $async$iterator._yieldStar$1(new A.WhereIterable(t3, new A.ExtensionStore_extensionsWhereTarget_closure0(), t3.$ti._eval$1("WhereIterable<Iterable.E>")));
+              case 9:
+                // after yield
+                // goto join
+                $async$goto = 7;
+                break;
+              case 8:
+                // else
+                $async$goto = !t3.isOptional ? 10 : 11;
+                break;
+              case 10:
+                // then
+                $async$goto = 12;
+                return $async$iterator._async$_current = t3, 1;
+              case 12:
+                // after yield
+              case 11:
+                // join
+              case 7:
+                // join
+                // goto for condition
+                $async$goto = 4;
+                break;
+              case 5:
+                // after for
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 3:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    addSelector$2(selector, mediaContext) {
+      var originalSelector, error, stackTrace, t1, exception, t2, t3, t4, modifiableSelector, _this = this;
+      selector = selector;
+      originalSelector = selector;
+      if (!originalSelector.accept$1(B._IsInvisibleVisitor_true0))
+        _this._extension_store$_originals.addAll$1(0, originalSelector.components);
+      t1 = _this._extension_store$_extensions;
+      if (t1.__js_helper$_length !== 0)
+        try {
+          selector = _this._extension_store$_extendList$3(originalSelector, t1, mediaContext);
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (t1 instanceof A.SassException0) {
+            error = t1;
+            stackTrace = A.getTraceFromException(exception);
+            t1 = error;
+            t2 = J.getInterceptor$z(t1);
+            t1 = A.SourceSpanException.prototype.get$span.call(t2, t1).message$1(0, "");
+            t2 = error._span_exception$_message;
+            t3 = error;
+            t4 = J.getInterceptor$z(t3);
+            t3 = A.SourceSpanException.prototype.get$span.call(t4, t3);
+            A.throwWithTrace0(new A.SassException0(B.Set_empty, "From " + t1 + "\n" + t2, t3), error, stackTrace);
+          } else
+            throw exception;
+        }
+      modifiableSelector = new A.ModifiableBox0(selector, type$.ModifiableBox_SelectorList_2);
+      if (mediaContext != null)
+        _this._extension_store$_mediaContexts.$indexSet(0, modifiableSelector, mediaContext);
+      _this._extension_store$_registerSelector$2(selector, modifiableSelector);
+      return new A.Box0(modifiableSelector, type$.Box_SelectorList_2);
+    },
+    _extension_store$_registerSelector$2(list, selector) {
+      var t1, t2, t3, t4, _i, t5, t6, _i0, t7, t8, _i1, simple, _0_2_isSet, _0_2, t9, selectorInPseudo;
+      for (t1 = list.components, t2 = t1.length, t3 = this._extension_store$_selectors, t4 = type$.SelectorList_2, _i = 0; _i < t2; ++_i)
+        for (t5 = t1[_i].components, t6 = t5.length, _i0 = 0; _i0 < t6; ++_i0)
+          for (t7 = t5[_i0].selector.components, t8 = t7.length, _i1 = 0; _i1 < t8; ++_i1) {
+            simple = t7[_i1];
+            J.add$1$ax(t3.putIfAbsent$2(simple, new A.ExtensionStore__registerSelector_closure0()), selector);
+            _0_2_isSet = simple instanceof A.PseudoSelector0;
+            if (_0_2_isSet) {
+              _0_2 = simple.selector;
+              t9 = _0_2 != null;
+            } else {
+              _0_2 = null;
+              t9 = false;
+            }
+            if (t9) {
+              selectorInPseudo = _0_2_isSet ? _0_2 : simple.selector;
+              this._extension_store$_registerSelector$2(selectorInPseudo == null ? t4._as(selectorInPseudo) : selectorInPseudo, selector);
+            }
+          }
+    },
+    addExtension$4(extender, target, extend, mediaContext) {
+      var t2, t3, t4, t5, t6, t7, t8, t9, t10, newExtensions, _i, complex, t11, extension, _0_0, t12, newExtensionsByTarget, additionalExtensions, _this = this,
+        selectors = _this._extension_store$_selectors.$index(0, target),
+        t1 = _this._extension_store$_extensionsByExtender,
+        existingExtensions = t1.$index(0, target),
+        sources = _this._extension_store$_extensions.putIfAbsent$2(target, new A.ExtensionStore_addExtension_closure2());
+      for (t2 = extender.components, t3 = t2.length, t4 = selectors == null, t5 = _this._extension_store$_sourceSpecificity, t6 = extend.span, t7 = extend.isOptional, t8 = existingExtensions != null, t9 = type$.ComplexSelector_2, t10 = type$.Extension_2, newExtensions = null, _i = 0; _i < t3; ++_i) {
+        complex = t2[_i];
+        if (complex.accept$1(B.C__IsUselessVisitor0))
+          continue;
+        complex.get$specificity();
+        t11 = new A.Extender0(complex, false);
+        extension = t11._extension$_extension = new A.Extension0(t11, target, mediaContext, t7, t6);
+        _0_0 = sources.$index(0, complex);
+        if (_0_0 != null) {
+          sources.$indexSet(0, complex, A.MergedExtension_merge0(_0_0, extension));
+          continue;
+        }
+        sources.$indexSet(0, complex, extension);
+        for (t11 = new A._SyncStarIterator(_this._extension_store$_simpleSelectors$1(complex)._outerHelper()); t11.moveNext$0();) {
+          t12 = t11._async$_current;
+          J.add$1$ax(t1.putIfAbsent$2(t12, new A.ExtensionStore_addExtension_closure3()), extension);
+          t5.putIfAbsent$2(t12, new A.ExtensionStore_addExtension_closure4(complex));
+        }
+        if (!t4 || t8) {
+          if (newExtensions == null)
+            newExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t9, t10);
+          newExtensions.$indexSet(0, complex, extension);
+        }
+      }
+      if (newExtensions == null)
+        return;
+      t1 = type$.SimpleSelector_2;
+      newExtensionsByTarget = A.LinkedHashMap_LinkedHashMap$_literal([target, newExtensions], t1, type$.Map_ComplexSelector_Extension_2);
+      if (t8) {
+        additionalExtensions = _this._extension_store$_extendExistingExtensions$2(existingExtensions, newExtensionsByTarget);
+        if (additionalExtensions != null)
+          A.mapAddAll20(newExtensionsByTarget, additionalExtensions, t1, t9, t10);
+      }
+      if (!t4)
+        _this._extension_store$_extendExistingSelectors$2(selectors, newExtensionsByTarget);
+    },
+    _extension_store$_simpleSelectors$1(complex) {
+      return new A._SyncStarIterable(this._simpleSelectors$body$ExtensionStore0(complex), type$._SyncStarIterable_SimpleSelector_2);
+    },
+    _simpleSelectors$body$ExtensionStore0($async$complex) {
+      var $async$self = this;
+      return function() {
+        var complex = $async$complex;
+        var $async$goto = 0, $async$handler = 1, $async$currentError, t1, t2, t3, _i, t4, t5, _i0, simple, _0_2_isSet, _0_2, t6, selector, t7, _i1;
+        return function $async$_extension_store$_simpleSelectors$1($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                t1 = complex.components, t2 = t1.length, t3 = type$.SelectorList_2, _i = 0;
+              case 2:
+                // for condition
+                if (!(_i < t2)) {
+                  // goto after for
+                  $async$goto = 4;
+                  break;
+                }
+                t4 = t1[_i].selector.components, t5 = t4.length, _i0 = 0;
+              case 5:
+                // for condition
+                if (!(_i0 < t5)) {
+                  // goto after for
+                  $async$goto = 7;
+                  break;
+                }
+                simple = t4[_i0];
+                $async$goto = 8;
+                return $async$iterator._async$_current = simple, 1;
+              case 8:
+                // after yield
+                _0_2_isSet = simple instanceof A.PseudoSelector0;
+                if (_0_2_isSet) {
+                  _0_2 = simple.selector;
+                  t6 = _0_2 != null;
+                } else {
+                  _0_2 = null;
+                  t6 = false;
+                }
+                $async$goto = t6 ? 9 : 10;
+                break;
+              case 9:
+                // then
+                selector = _0_2_isSet ? _0_2 : simple.selector;
+                t6 = (selector == null ? t3._as(selector) : selector).components, t7 = t6.length, _i1 = 0;
+              case 11:
+                // for condition
+                if (!(_i1 < t7)) {
+                  // goto after for
+                  $async$goto = 13;
+                  break;
+                }
+                $async$goto = 14;
+                return $async$iterator._yieldStar$1($async$self._extension_store$_simpleSelectors$1(t6[_i1]));
+              case 14:
+                // after yield
+              case 12:
+                // for update
+                ++_i1;
+                // goto for condition
+                $async$goto = 11;
+                break;
+              case 13:
+                // after for
+              case 10:
+                // join
+              case 6:
+                // for update
+                ++_i0;
+                // goto for condition
+                $async$goto = 5;
+                break;
+              case 7:
+                // after for
+              case 3:
+                // for update
+                ++_i;
+                // goto for condition
+                $async$goto = 2;
+                break;
+              case 4:
+                // after for
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    },
+    _extension_store$_extendExistingExtensions$2(extensions, newExtensions) {
+      var extension, selectors, error, stackTrace, t1, t2, t3, t4, t5, t6, additionalExtensions, _i, t7, exception, t8, t9, selectors0, t10, t11, t12, t13, t14, withExtender, _0_0, _i0, _i1;
+      for (t1 = J.toList$0$ax(extensions), t2 = t1.length, t3 = this._extension_store$_extensionsByExtender, t4 = type$.SimpleSelector_2, t5 = type$.Map_ComplexSelector_Extension_2, t6 = this._extension_store$_extensions, additionalExtensions = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        extension = t1[_i];
+        t7 = t6.$index(0, extension.target);
+        t7.toString;
+        selectors = null;
+        try {
+          selectors = this._extension_store$_extendComplex$3(extension.extender.selector, newExtensions, extension.mediaContext);
+          if (selectors == null)
+            continue;
+        } catch (exception) {
+          t8 = A.unwrapException(exception);
+          if (t8 instanceof A.SassException0) {
+            error = t8;
+            stackTrace = A.getTraceFromException(exception);
+            A.throwWithTrace0(error.withAdditionalSpan$2(extension.extender.selector.span, "target selector"), error, stackTrace);
+          } else
+            throw exception;
+        }
+        t8 = J.get$first$ax(selectors);
+        t9 = extension.extender.selector;
+        if (B.C_ListEquality.equals$2(0, t8.leadingCombinators, t9.leadingCombinators) && B.C_ListEquality.equals$2(0, t8.components, t9.components)) {
+          t8 = selectors;
+          t9 = A._arrayInstanceType(t8);
+          selectors0 = new A.SubListIterable(t8, 1, null, t9._eval$1("SubListIterable<1>"));
+          selectors0.SubListIterable$3(t8, 1, null, t9._precomputed1);
+          selectors = selectors0;
+        }
+        for (t8 = J.get$iterator$ax(selectors); t8.moveNext$0();) {
+          t9 = t8.get$current(t8);
+          t10 = extension;
+          t11 = t10.target;
+          t12 = t10.span;
+          t13 = t10.mediaContext;
+          t10 = t10.isOptional;
+          t9.get$specificity();
+          t14 = new A.Extender0(t9, false);
+          withExtender = t14._extension$_extension = new A.Extension0(t14, t11, t13, t10, t12);
+          _0_0 = t7.$index(0, t9);
+          if (_0_0 != null)
+            t7.$indexSet(0, t9, A.MergedExtension_merge0(_0_0, withExtender));
+          else {
+            t7.$indexSet(0, t9, withExtender);
+            for (t10 = t9.components, t11 = t10.length, _i0 = 0; _i0 < t11; ++_i0)
+              for (t12 = t10[_i0].selector.components, t13 = t12.length, _i1 = 0; _i1 < t13; ++_i1)
+                J.add$1$ax(t3.putIfAbsent$2(t12[_i1], new A.ExtensionStore__extendExistingExtensions_closure1()), withExtender);
+            if (newExtensions.containsKey$1(extension.target)) {
+              if (additionalExtensions == null)
+                additionalExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t4, t5);
+              additionalExtensions.putIfAbsent$2(extension.target, new A.ExtensionStore__extendExistingExtensions_closure2()).$indexSet(0, t9, withExtender);
+            }
+          }
+        }
+      }
+      return additionalExtensions;
+    },
+    _extension_store$_extendExistingSelectors$2(selectors, newExtensions) {
+      var selector, error, stackTrace, t1, t2, oldValue, exception, t3, t4, t5, t6;
+      for (t1 = selectors.get$iterator(selectors), t2 = this._extension_store$_mediaContexts; t1.moveNext$0();) {
+        selector = t1.get$current(t1);
+        oldValue = selector.value;
+        try {
+          selector.value = this._extension_store$_extendList$3(selector.value, newExtensions, t2.$index(0, selector));
+        } catch (exception) {
+          t3 = A.unwrapException(exception);
+          if (t3 instanceof A.SassException0) {
+            error = t3;
+            stackTrace = A.getTraceFromException(exception);
+            t3 = selector.value.span.message$1(0, "");
+            t4 = error._span_exception$_message;
+            t5 = error;
+            t6 = J.getInterceptor$z(t5);
+            t5 = A.SourceSpanException.prototype.get$span.call(t6, t5);
+            A.throwWithTrace0(new A.SassException0(B.Set_empty, "From " + t3 + "\n" + t4, t5), error, stackTrace);
+          } else
+            throw exception;
+        }
+        if (oldValue === selector.value)
+          continue;
+        this._extension_store$_registerSelector$2(selector.value, selector);
+      }
+    },
+    addExtensions$1(extensionStores) {
+      var t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, newExtensions, selectorsToExtend, extensionsToExtend, t12, t13, target, newSources, first, extensionsForTarget, t14, selectorsForTarget, t15, _2_0, t16, extender, extension, _this = this, _null = null;
+      for (t1 = J.get$iterator$ax(extensionStores), t2 = type$.SimpleSelector_2, t3 = type$.Map_ComplexSelector_Extension_2, t4 = _this._extension_store$_extensions, t5 = type$.ComplexSelector_2, t6 = type$.Extension_2, t7 = _this._extension_store$_selectors, t8 = _this._extension_store$_extensionsByExtender, t9 = type$.JSArray_Extension_2, t10 = type$.ModifiableBox_SelectorList_2, t11 = _this._extension_store$_sourceSpecificity, newExtensions = _null, selectorsToExtend = newExtensions, extensionsToExtend = selectorsToExtend; t1.moveNext$0();) {
+        t12 = t1.get$current(t1);
+        if (t12.get$isEmpty(t12))
+          continue;
+        t11.addAll$1(0, t12.get$_extension_store$_sourceSpecificity());
+        for (t12 = A.MapExtensions_get_pairs0(t12.get$_extension_store$_extensions(), t2, t3), t12 = t12.get$iterator(t12); t12.moveNext$0();) {
+          t13 = t12.get$current(t12);
+          target = t13._0;
+          newSources = t13._1;
+          if (target instanceof A.PlaceholderSelector0) {
+            first = target.name.charCodeAt(0);
+            t13 = first === 45 || first === 95;
+          } else
+            t13 = false;
+          if (t13)
+            continue;
+          extensionsForTarget = t8.$index(0, target);
+          t13 = extensionsForTarget == null;
+          if (!t13) {
+            if (extensionsToExtend == null) {
+              extensionsToExtend = A._setArrayType([], t9);
+              t14 = extensionsToExtend;
+            } else
+              t14 = extensionsToExtend;
+            B.JSArray_methods.addAll$1(t14, extensionsForTarget);
+          }
+          selectorsForTarget = t7.$index(0, target);
+          t14 = selectorsForTarget != null;
+          if (t14) {
+            if (selectorsToExtend == null) {
+              selectorsToExtend = A.LinkedHashSet_LinkedHashSet$_empty(t10);
+              t15 = selectorsToExtend;
+            } else
+              t15 = selectorsToExtend;
+            t15.addAll$1(0, selectorsForTarget);
+          }
+          _2_0 = t4.$index(0, target);
+          if (_2_0 != null)
+            for (t15 = A.MapExtensions_get_pairs0(newSources, t5, t6), t15 = t15.get$iterator(t15); t15.moveNext$0();) {
+              t16 = t15.get$current(t15);
+              extender = t16._0;
+              extension = t16._1;
+              if (_2_0.containsKey$1(extender)) {
+                t16 = _2_0.$index(0, extender);
+                extension = A.MergedExtension_merge0(t16 == null ? t6._as(t16) : t16, extension);
+                _2_0.$indexSet(0, extender, extension);
+              } else
+                _2_0.$indexSet(0, extender, extension);
+              if (!t13 || t14) {
+                if (newExtensions == null) {
+                  newExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t2, t3);
+                  t16 = newExtensions;
+                } else
+                  t16 = newExtensions;
+                J.$indexSet$ax(t16.putIfAbsent$2(target, new A.ExtensionStore_addExtensions_closure0()), extender, extension);
+              }
+            }
+          else {
+            t15 = A.LinkedHashMap_LinkedHashMap(_null, _null, _null, t5, t6);
+            t15.addAll$1(0, newSources);
+            t4.$indexSet(0, target, t15);
+            if (!t13 || t14) {
+              if (newExtensions == null) {
+                newExtensions = A.LinkedHashMap_LinkedHashMap$_empty(t2, t3);
+                t13 = newExtensions;
+              } else
+                t13 = newExtensions;
+              t14 = A.LinkedHashMap_LinkedHashMap(_null, _null, _null, t5, t6);
+              t14.addAll$1(0, newSources);
+              t13.$indexSet(0, target, t14);
+            }
+          }
+        }
+      }
+      if (newExtensions != null) {
+        if (extensionsToExtend != null)
+          _this._extension_store$_extendExistingExtensions$2(extensionsToExtend, newExtensions);
+        if (selectorsToExtend != null)
+          _this._extension_store$_extendExistingSelectors$2(selectorsToExtend, newExtensions);
+      }
+    },
+    _extension_store$_extendList$3(list, extensions, mediaQueryContext) {
+      var t1, t2, t3, extended, i, complex, result, t4;
+      for (t1 = list.components, t2 = t1.length, t3 = type$.JSArray_ComplexSelector_2, extended = null, i = 0; i < t2; ++i) {
+        complex = t1[i];
+        result = this._extension_store$_extendComplex$3(complex, extensions, mediaQueryContext);
+        if (result == null) {
+          if (extended != null)
+            extended.push(complex);
+        } else {
+          if (extended == null)
+            if (i === 0)
+              extended = A._setArrayType([], t3);
+            else {
+              t4 = B.JSArray_methods.sublist$2(t1, 0, i);
+              extended = A._setArrayType(t4.slice(0), A._arrayInstanceType(t4));
+            }
+          B.JSArray_methods.addAll$1(extended, result);
+        }
+      }
+      if (extended == null)
+        return list;
+      t1 = this._extension_store$_originals;
+      return A.SelectorList$0(this._extension_store$_trim$2(extended, t1.get$contains(t1)), list.span);
+    },
+    _extension_store$_extendList$2(list, extensions) {
+      return this._extension_store$_extendList$3(list, extensions, null);
+    },
+    _extension_store$_extendComplex$3(complex, extensions, mediaQueryContext) {
+      var isOriginal, t3, t4, t5, t6, t7, t8, t9, t10, extendedNotExpanded, i, component, extended, t11, t12, t13, t14, _box_0 = {},
+        t1 = complex.leadingCombinators,
+        t2 = t1.length;
+      if (t2 > 1)
+        return null;
+      isOriginal = this._extension_store$_originals.contains$1(0, complex);
+      for (t3 = complex.components, t4 = t3.length, t5 = type$.JSArray_List_ComplexSelector_2, t6 = complex.lineBreak, t7 = !t6, t8 = complex.span, t9 = type$.JSArray_ComplexSelector_2, t2 = t2 === 0, t10 = type$.JSArray_ComplexSelectorComponent_2, extendedNotExpanded = null, i = 0; i < t4; ++i) {
+        component = t3[i];
+        extended = this._extension_store$_extendCompound$4$inOriginal(component, extensions, mediaQueryContext, isOriginal);
+        if (extended == null) {
+          if (extendedNotExpanded != null)
+            extendedNotExpanded.push(A._setArrayType([A.ComplexSelector$0(B.List_empty14, A._setArrayType([component], t10), t8, t6)], t9));
+        } else if (extendedNotExpanded != null)
+          extendedNotExpanded.push(extended);
+        else if (i !== 0) {
+          t11 = A._arrayInstanceType(t3);
+          t12 = new A.SubListIterable(t3, 0, i, t11._eval$1("SubListIterable<1>"));
+          t12.SubListIterable$3(t3, 0, i, t11._precomputed1);
+          extendedNotExpanded = A._setArrayType([A._setArrayType([A.ComplexSelector$0(t1, t12, t8, t6)], t9), extended], t5);
+        } else if (t2)
+          extendedNotExpanded = A._setArrayType([extended], t5);
+        else {
+          t11 = A._setArrayType([], t9);
+          for (t12 = J.get$iterator$ax(extended); t12.moveNext$0();) {
+            t13 = t12.get$current(t12);
+            t14 = t13.leadingCombinators;
+            if (t14.length === 0 || B.C_ListEquality.equals$2(0, t1, t14)) {
+              t14 = t13.components;
+              t11.push(A.ComplexSelector$0(t1, t14, t8, !t7 || t13.lineBreak));
+            }
+          }
+          extendedNotExpanded = A._setArrayType([t11], t5);
+        }
+      }
+      if (extendedNotExpanded == null)
+        return null;
+      _box_0.first = true;
+      t1 = type$.ComplexSelector_2;
+      t1 = J.expand$1$1$ax(A.paths0(extendedNotExpanded, t1), new A.ExtensionStore__extendComplex_closure0(_box_0, this, complex), t1);
+      return A.List_List$of(t1, true, t1.$ti._eval$1("Iterable.E"));
+    },
+    _extension_store$_extendCompound$4$inOriginal(component, extensions, mediaQueryContext, inOriginal) {
+      var t3, t4, t5, t6, t7, t8, t9, t10, t11, options, i, simple, extended, t12, result, compound, complex, extenderPaths, withCombinators, isOriginal, _this = this, _null = null,
+        t1 = _this._extension_store$_mode,
+        targetsUsed = t1 === B.ExtendMode_normal_normal0 || extensions.__js_helper$_length < 2 ? _null : A.LinkedHashSet_LinkedHashSet$_empty(type$.SimpleSelector_2),
+        t2 = component.selector,
+        simples = t2.components;
+      for (t3 = simples.length, t4 = type$.JSArray_List_Extender_2, t5 = type$.JSArray_Extender_2, t6 = type$.CssValue_Combinator_2, t7 = type$.JSArray_ComplexSelectorComponent_2, t8 = A._arrayInstanceType(simples), t9 = t8._precomputed1, t8 = t8._eval$1("SubListIterable<1>"), t10 = component.span, t11 = type$.SimpleSelector_2, options = _null, i = 0; i < t3; ++i) {
+        simple = simples[i];
+        extended = _this._extension_store$_extendSimple$4(simple, extensions, mediaQueryContext, targetsUsed);
+        if (extended == null) {
+          if (options != null)
+            options.push(A._setArrayType([_this._extension_store$_extenderForSimple$1(simple)], t5));
+        } else {
+          if (options == null) {
+            options = A._setArrayType([], t4);
+            if (i !== 0) {
+              t12 = new A.SubListIterable(simples, 0, i, t8);
+              t12.SubListIterable$3(simples, 0, i, t9);
+              result = A.List_List$from(t12, false, t11);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t12 = result;
+              compound = new A.CompoundSelector0(t12, t10);
+              if (t12.length === 0)
+                A.throwExpression(A.ArgumentError$("components may not be empty.", _null));
+              result = A.List_List$from(B.List_empty14, false, t6);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t12 = A.ComplexSelector$0(B.List_empty14, A._setArrayType([new A.ComplexSelectorComponent0(compound, result, t10)], t7), t10, false);
+              _this._extension_store$_sourceSpecificityFor$1(compound);
+              options.push(A._setArrayType([new A.Extender0(t12, true)], t5));
+            }
+          }
+          B.JSArray_methods.addAll$1(options, extended);
+        }
+      }
+      if (options == null)
+        return _null;
+      if (targetsUsed != null && targetsUsed._collection$_length !== extensions.__js_helper$_length)
+        return _null;
+      if (options.length === 1) {
+        for (t1 = J.get$iterator$ax(options[0]), t2 = component.combinators, t3 = type$.JSArray_ComplexSelector_2, result = _null; t1.moveNext$0();) {
+          t4 = t1.get$current(t1);
+          t4.assertCompatibleMediaContext$1(mediaQueryContext);
+          complex = t4.selector.withAdditionalCombinators$1(t2);
+          if (complex.accept$1(B.C__IsUselessVisitor0))
+            continue;
+          if (result == null)
+            result = A._setArrayType([], t3);
+          result.push(complex);
+        }
+        return result;
+      }
+      extenderPaths = A.paths0(options, type$.Extender_2);
+      t3 = A._setArrayType([], type$.JSArray_ComplexSelector_2);
+      t1 = t1 === B.ExtendMode_replace_replace0;
+      t4 = !t1;
+      if (t4)
+        t3.push(A.ComplexSelector$0(B.List_empty14, A._setArrayType([new A.ComplexSelectorComponent0(A.CompoundSelector$0(J.expand$1$1$ax(J.get$first$ax(extenderPaths), new A.ExtensionStore__extendCompound_closure2(), t11), t2.span), A.List_List$unmodifiable(component.combinators, t6), t10)], t7), t10, false));
+      t2 = J.skip$1$ax(extenderPaths, t1 ? 0 : 1);
+      t5 = t2.$ti;
+      t2 = new A.ListIterator(t2, t2.get$length(0), t5._eval$1("ListIterator<ListIterable.E>"));
+      t6 = component.combinators;
+      t5 = t5._eval$1("ListIterable.E");
+      for (; t2.moveNext$0();) {
+        t1 = t2.__internal$_current;
+        extended = _this._extension_store$_unifyExtenders$3(t1 == null ? t5._as(t1) : t1, mediaQueryContext, t10);
+        if (extended == null)
+          continue;
+        for (t1 = J.get$iterator$ax(extended); t1.moveNext$0();) {
+          withCombinators = t1.get$current(t1).withAdditionalCombinators$1(t6);
+          if (!withCombinators.accept$1(B.C__IsUselessVisitor0))
+            t3.push(withCombinators);
+        }
+      }
+      isOriginal = new A.ExtensionStore__extendCompound_closure3();
+      return _this._extension_store$_trim$2(t3, inOriginal && t4 ? new A.ExtensionStore__extendCompound_closure4(B.JSArray_methods.get$first(t3)) : isOriginal);
+    },
+    _extension_store$_unifyExtenders$3(extenders, mediaQueryContext, span) {
+      var t1, t2, t3, originals, originalsLineBreak, t4, complexes, _null = null,
+        toUnify = A.QueueList$(_null, type$.ComplexSelector_2);
+      for (t1 = J.getInterceptor$ax(extenders), t2 = t1.get$iterator(extenders), t3 = type$.JSArray_SimpleSelector_2, originals = _null, originalsLineBreak = false; t2.moveNext$0();) {
+        t4 = t2.get$current(t2);
+        if (t4.isOriginal) {
+          if (originals == null)
+            originals = A._setArrayType([], t3);
+          t4 = t4.selector;
+          B.JSArray_methods.addAll$1(originals, B.JSArray_methods.get$last(t4.components).selector.components);
+          originalsLineBreak = originalsLineBreak || t4.lineBreak;
+        } else {
+          t4 = t4.selector;
+          if (t4.accept$1(B.C__IsUselessVisitor0))
+            return _null;
+          else
+            toUnify._queue_list$_add$1(t4);
+        }
+      }
+      if (originals != null)
+        toUnify.addFirst$1(A.ComplexSelector$0(B.List_empty14, A._setArrayType([new A.ComplexSelectorComponent0(A.CompoundSelector$0(originals, span), A.List_List$unmodifiable(B.List_empty14, type$.CssValue_Combinator_2), span)], type$.JSArray_ComplexSelectorComponent_2), span, originalsLineBreak));
+      complexes = A.unifyComplex0(toUnify, span);
+      if (complexes == null)
+        return _null;
+      for (t1 = t1.get$iterator(extenders); t1.moveNext$0();)
+        t1.get$current(t1).assertCompatibleMediaContext$1(mediaQueryContext);
+      return complexes;
+    },
+    _extension_store$_extendSimple$4(simple, extensions, mediaQueryContext, targetsUsed) {
+      var t2, _1_0,
+        t1 = new A.ExtensionStore__extendSimple_withoutPseudo0(this, extensions, targetsUsed);
+      if (simple instanceof A.PseudoSelector0)
+        t2 = simple.selector != null;
+      else
+        t2 = false;
+      if (t2) {
+        _1_0 = this._extension_store$_extendPseudo$3(simple, extensions, mediaQueryContext);
+        if (_1_0 != null)
+          return new A.MappedListIterable(_1_0, new A.ExtensionStore__extendSimple_closure1(this, t1), A._arrayInstanceType(_1_0)._eval$1("MappedListIterable<1,List<Extender0>>"));
+      }
+      return A.NullableExtension_andThen0(t1.call$1(simple), new A.ExtensionStore__extendSimple_closure2());
+    },
+    _extension_store$_extenderForSimple$1(simple) {
+      var t1 = simple.span;
+      t1 = A.ComplexSelector$0(B.List_empty14, A._setArrayType([new A.ComplexSelectorComponent0(A.CompoundSelector$0(A._setArrayType([simple], type$.JSArray_SimpleSelector_2), t1), A.List_List$unmodifiable(B.List_empty14, type$.CssValue_Combinator_2), t1)], type$.JSArray_ComplexSelectorComponent_2), t1, false);
+      this._extension_store$_sourceSpecificity.$index(0, simple);
+      return new A.Extender0(t1, true);
+    },
+    _extension_store$_extendPseudo$3(pseudo, extensions, mediaQueryContext) {
+      var extended, complexes, t1, result,
+        selector = pseudo.selector;
+      if (selector == null)
+        throw A.wrapException(A.ArgumentError$("Selector " + pseudo.toString$0(0) + " must have a selector argument.", null));
+      extended = this._extension_store$_extendList$3(selector, extensions, mediaQueryContext);
+      if (extended === selector)
+        return null;
+      complexes = extended.components;
+      t1 = pseudo.normalizedName === "not";
+      if (t1 && !B.JSArray_methods.any$1(selector.components, new A.ExtensionStore__extendPseudo_closure4()) && B.JSArray_methods.any$1(complexes, new A.ExtensionStore__extendPseudo_closure5()))
+        complexes = new A.WhereIterable(complexes, new A.ExtensionStore__extendPseudo_closure6(), A._arrayInstanceType(complexes)._eval$1("WhereIterable<1>"));
+      complexes = J.expand$1$1$ax(complexes, new A.ExtensionStore__extendPseudo_closure7(pseudo), type$.ComplexSelector_2);
+      if (t1 && selector.components.length === 1) {
+        t1 = A.MappedIterable_MappedIterable(complexes, new A.ExtensionStore__extendPseudo_closure8(pseudo, selector), complexes.$ti._eval$1("Iterable.E"), type$.PseudoSelector_2);
+        result = A.List_List$of(t1, true, A._instanceType(t1)._eval$1("Iterable.E"));
+        return result.length === 0 ? null : result;
+      } else
+        return A._setArrayType([pseudo.withSelector$1(A.SelectorList$0(complexes, selector.span))], type$.JSArray_PseudoSelector_2);
+    },
+    _extension_store$_trim$2(selectors, isOriginal) {
+      var result, i, t1, t2, numOriginals, _box_0, complex1, j, t3, t4, _i, t5, maxSpecificity;
+      if (selectors.length > 100)
+        return selectors;
+      result = A.QueueList$(null, type$.ComplexSelector_2);
+      $label0$0:
+        for (i = selectors.length - 1, t1 = A._arrayInstanceType(selectors), t2 = t1._precomputed1, t1 = t1._eval$1("SubListIterable<1>"), numOriginals = 0; i >= 0; --i) {
+          _box_0 = {};
+          complex1 = selectors[i];
+          if (isOriginal.call$1(complex1)) {
+            for (j = 0; j < numOriginals; ++j)
+              if (J.$eq$(result.$index(0, j), complex1)) {
+                A.rotateSlice0(result, 0, j + 1);
+                continue $label0$0;
+              }
+            ++numOriginals;
+            result.addFirst$1(complex1);
+            continue $label0$0;
+          }
+          _box_0.maxSpecificity = 0;
+          for (t3 = complex1.components, t4 = t3.length, _i = 0, t5 = 0; _i < t4; ++_i, t5 = maxSpecificity) {
+            maxSpecificity = Math.max(t5, this._extension_store$_sourceSpecificityFor$1(t3[_i].selector));
+            _box_0.maxSpecificity = maxSpecificity;
+          }
+          if (result.any$1(result, new A.ExtensionStore__trim_closure1(_box_0, complex1)))
+            continue $label0$0;
+          t3 = new A.SubListIterable(selectors, 0, i, t1);
+          t3.SubListIterable$3(selectors, 0, i, t2);
+          if (t3.any$1(0, new A.ExtensionStore__trim_closure2(_box_0, complex1)))
+            continue $label0$0;
+          result.addFirst$1(complex1);
+        }
+      return result;
+    },
+    _extension_store$_sourceSpecificityFor$1(compound) {
+      var t1, t2, t3, specificity, _i, t4;
+      for (t1 = compound.components, t2 = t1.length, t3 = this._extension_store$_sourceSpecificity, specificity = 0, _i = 0; _i < t2; ++_i) {
+        t4 = t3.$index(0, t1[_i]);
+        specificity = Math.max(specificity, A.checkNum(t4 == null ? 0 : t4));
+      }
+      return specificity;
+    },
+    clone$0() {
+      var t2, t3, t4, _this = this,
+        t1 = type$.SimpleSelector_2,
+        newSelectors = A.LinkedHashMap_LinkedHashMap$_empty(t1, type$.Set_ModifiableBox_SelectorList_2),
+        newMediaContexts = A.LinkedHashMap_LinkedHashMap$_empty(type$.ModifiableBox_SelectorList_2, type$.List_CssMediaQuery_2),
+        oldToNewSelectors = new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_of_SelectorList_and_Box_SelectorList_2);
+      _this._extension_store$_selectors.forEach$1(0, new A.ExtensionStore_clone_closure0(_this, newSelectors, oldToNewSelectors, newMediaContexts));
+      t2 = type$.Extension_2;
+      t3 = A.copyMapOfMap0(_this._extension_store$_extensions, t1, type$.ComplexSelector_2, t2);
+      t2 = A.copyMapOfList0(_this._extension_store$_extensionsByExtender, t1, t2);
+      t1 = new A.JsIdentityLinkedHashMap(type$.JsIdentityLinkedHashMap_SimpleSelector_int_2);
+      t1.addAll$1(0, _this._extension_store$_sourceSpecificity);
+      t4 = new A._LinkedIdentityHashSet(type$._LinkedIdentityHashSet_ComplexSelector_2);
+      t4.addAll$1(0, _this._extension_store$_originals);
+      return new A._Record_2(new A.ExtensionStore0(newSelectors, t3, t2, newMediaContexts, t1, t4, B.ExtendMode_normal_normal0), oldToNewSelectors);
+    },
+    get$_extension_store$_extensions() {
+      return this._extension_store$_extensions;
+    },
+    get$_extension_store$_sourceSpecificity() {
+      return this._extension_store$_sourceSpecificity;
+    }
+  };
+  A.ExtensionStore_extensionsWhereTarget_closure0.prototype = {
+    call$1(extension) {
+      return !extension.isOptional;
+    },
+    $signature: 441
+  };
+  A.ExtensionStore__registerSelector_closure0.prototype = {
+    call$0() {
+      return A.LinkedHashSet_LinkedHashSet$_empty(type$.ModifiableBox_SelectorList_2);
+    },
+    $signature: 442
+  };
+  A.ExtensionStore_addExtension_closure2.prototype = {
+    call$0() {
+      return A.LinkedHashMap_LinkedHashMap$_empty(type$.ComplexSelector_2, type$.Extension_2);
+    },
+    $signature: 127
+  };
+  A.ExtensionStore_addExtension_closure3.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_Extension_2);
+    },
+    $signature: 251
+  };
+  A.ExtensionStore_addExtension_closure4.prototype = {
+    call$0() {
+      return this.complex.get$specificity();
+    },
+    $signature: 10
+  };
+  A.ExtensionStore__extendExistingExtensions_closure1.prototype = {
+    call$0() {
+      return A._setArrayType([], type$.JSArray_Extension_2);
+    },
+    $signature: 251
+  };
+  A.ExtensionStore__extendExistingExtensions_closure2.prototype = {
+    call$0() {
+      return A.LinkedHashMap_LinkedHashMap$_empty(type$.ComplexSelector_2, type$.Extension_2);
+    },
+    $signature: 127
+  };
+  A.ExtensionStore_addExtensions_closure0.prototype = {
+    call$0() {
+      return A.LinkedHashMap_LinkedHashMap$_empty(type$.ComplexSelector_2, type$.Extension_2);
+    },
+    $signature: 127
+  };
+  A.ExtensionStore__extendComplex_closure0.prototype = {
+    call$1(path) {
+      var t1 = this.complex;
+      return J.map$1$1$ax(A.weave0(path, t1.span, t1.lineBreak), new A.ExtensionStore__extendComplex__closure0(this._box_0, this.$this, t1), type$.ComplexSelector_2);
+    },
+    $signature: 445
+  };
+  A.ExtensionStore__extendComplex__closure0.prototype = {
+    call$1(outputComplex) {
+      var _this = this,
+        t1 = _this._box_0;
+      if (t1.first && _this.$this._extension_store$_originals.contains$1(0, _this.complex))
+        _this.$this._extension_store$_originals.add$1(0, outputComplex);
+      t1.first = false;
+      return outputComplex;
+    },
+    $signature: 56
+  };
+  A.ExtensionStore__extendCompound_closure2.prototype = {
+    call$1(extender) {
+      return B.JSArray_methods.get$last(extender.selector.components).selector.components;
+    },
+    $signature: 447
+  };
+  A.ExtensionStore__extendCompound_closure3.prototype = {
+    call$1(_) {
+      return false;
+    },
+    $signature: 18
+  };
+  A.ExtensionStore__extendCompound_closure4.prototype = {
+    call$1(complex) {
+      return complex.$eq(0, this.original);
+    },
+    $signature: 18
+  };
+  A.ExtensionStore__extendSimple_withoutPseudo0.prototype = {
+    call$1(simple) {
+      var t1, t2,
+        extensionsForSimple = this.extensions.$index(0, simple);
+      if (extensionsForSimple == null)
+        return null;
+      t1 = this.targetsUsed;
+      if (t1 != null)
+        t1.add$1(0, simple);
+      t1 = A._setArrayType([], type$.JSArray_Extender_2);
+      t2 = this.$this;
+      if (t2._extension_store$_mode !== B.ExtendMode_replace_replace0)
+        t1.push(t2._extension_store$_extenderForSimple$1(simple));
+      for (t2 = extensionsForSimple.get$values(extensionsForSimple), t2 = t2.get$iterator(t2); t2.moveNext$0();)
+        t1.push(t2.get$current(t2).extender);
+      return t1;
+    },
+    $signature: 448
+  };
+  A.ExtensionStore__extendSimple_closure1.prototype = {
+    call$1(pseudo) {
+      var t1 = this.withoutPseudo.call$1(pseudo);
+      return t1 == null ? A._setArrayType([this.$this._extension_store$_extenderForSimple$1(pseudo)], type$.JSArray_Extender_2) : t1;
+    },
+    $signature: 449
+  };
+  A.ExtensionStore__extendSimple_closure2.prototype = {
+    call$1(result) {
+      return A._setArrayType([result], type$.JSArray_List_Extender_2);
+    },
+    $signature: 450
+  };
+  A.ExtensionStore__extendPseudo_closure4.prototype = {
+    call$1(complex) {
+      return complex.components.length > 1;
+    },
+    $signature: 18
+  };
+  A.ExtensionStore__extendPseudo_closure5.prototype = {
+    call$1(complex) {
+      return complex.components.length === 1;
+    },
+    $signature: 18
+  };
+  A.ExtensionStore__extendPseudo_closure6.prototype = {
+    call$1(complex) {
+      return complex.components.length <= 1;
+    },
+    $signature: 18
+  };
+  A.ExtensionStore__extendPseudo_closure7.prototype = {
+    call$1(complex) {
+      var innerPseudo, innerSelector,
+        t1 = complex.get$singleCompound();
+      if (t1 == null)
+        innerPseudo = null;
+      else {
+        t1 = t1.components;
+        innerPseudo = t1.length === 1 ? B.JSArray_methods.get$first(t1) : null;
+      }
+      if (!(innerPseudo instanceof A.PseudoSelector0))
+        return A._setArrayType([complex], type$.JSArray_ComplexSelector_2);
+      innerSelector = innerPseudo.selector;
+      if (innerSelector == null)
+        return A._setArrayType([complex], type$.JSArray_ComplexSelector_2);
+      t1 = this.pseudo;
+      switch (t1.normalizedName) {
+        case "not":
+          if (!B.Set_mlzm2.contains$1(0, innerPseudo.normalizedName))
+            return A._setArrayType([], type$.JSArray_ComplexSelector_2);
+          return innerSelector.components;
+        case "is":
+        case "matches":
+        case "where":
+        case "any":
+        case "current":
+        case "nth-child":
+        case "nth-last-child":
+          if (innerPseudo.name !== t1.name)
+            return A._setArrayType([], type$.JSArray_ComplexSelector_2);
+          if (innerPseudo.argument != t1.argument)
+            return A._setArrayType([], type$.JSArray_ComplexSelector_2);
+          return innerSelector.components;
+        case "has":
+        case "host":
+        case "host-context":
+        case "slotted":
+          return A._setArrayType([complex], type$.JSArray_ComplexSelector_2);
+        default:
+          return A._setArrayType([], type$.JSArray_ComplexSelector_2);
+      }
+    },
+    $signature: 451
+  };
+  A.ExtensionStore__extendPseudo_closure8.prototype = {
+    call$1(complex) {
+      return this.pseudo.withSelector$1(A.SelectorList$0(A._setArrayType([complex], type$.JSArray_ComplexSelector_2), this.selector.span));
+    },
+    $signature: 452
+  };
+  A.ExtensionStore__trim_closure1.prototype = {
+    call$1(complex2) {
+      return complex2.get$specificity() >= this._box_0.maxSpecificity && complex2.isSuperselector$1(this.complex1);
+    },
+    $signature: 18
+  };
+  A.ExtensionStore__trim_closure2.prototype = {
+    call$1(complex2) {
+      return complex2.get$specificity() >= this._box_0.maxSpecificity && complex2.isSuperselector$1(this.complex1);
+    },
+    $signature: 18
+  };
+  A.ExtensionStore_clone_closure0.prototype = {
+    call$2(simple, selectors) {
+      var t2, t3, t4, t5, t6, t7, newSelector, _0_0, _this = this,
+        t1 = type$.ModifiableBox_SelectorList_2,
+        newSelectorSet = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      _this.newSelectors.$indexSet(0, simple, newSelectorSet);
+      for (t2 = selectors.get$iterator(selectors), t3 = _this.oldToNewSelectors, t4 = type$.Box_SelectorList_2, t5 = _this.$this._extension_store$_mediaContexts, t6 = _this.newMediaContexts; t2.moveNext$0();) {
+        t7 = t2.get$current(t2);
+        newSelector = new A.ModifiableBox0(t7.value, t1);
+        newSelectorSet.add$1(0, newSelector);
+        t3.$indexSet(0, t7.value, new A.Box0(newSelector, t4));
+        _0_0 = t5.$index(0, t7);
+        if (_0_0 != null)
+          t6.$indexSet(0, newSelector, _0_0);
+      }
+    },
+    $signature: 453
+  };
+  A.FiberClass.prototype = {};
+  A.Fiber.prototype = {};
+  A.JSToDartFileImporter.prototype = {
+    canonicalize$1(_, url) {
+      var result, t1, resultUrl;
+      if (url.get$scheme() === "file")
+        return $.$get$FilesystemImporter_cwd0().canonicalize$1(0, url);
+      result = A.wrapJSExceptions(new A.JSToDartFileImporter_canonicalize_closure(this, url));
+      if (result == null)
+        return null;
+      t1 = self.Promise;
+      if (result instanceof t1)
+        A.jsThrow(new self.Error("The findFileUrl() function can't return a Promise for synchron compile functions."));
+      else {
+        t1 = self.URL;
+        if (!(result instanceof t1))
+          A.jsThrow(new self.Error(string$.The_fie));
+      }
+      resultUrl = A.Uri_parse(J.toString$0$(type$.JSUrl._as(result)));
+      if (resultUrl.get$scheme() !== "file")
+        A.jsThrow(new self.Error(string$.The_fiu + url.toString$0(0) + '".'));
+      return $.$get$FilesystemImporter_cwd0().canonicalize$1(0, resultUrl);
+    },
+    load$1(_, url) {
+      return $.$get$FilesystemImporter_cwd0().load$1(0, url);
+    },
+    isNonCanonicalScheme$1(scheme) {
+      return scheme !== "file";
+    }
+  };
+  A.JSToDartFileImporter_canonicalize_closure.prototype = {
+    call$0() {
+      return this.$this._file0$_findFileUrl.call$2(this.url.toString$0(0), A.canonicalizeContext0());
+    },
+    $signature: 31
+  };
+  A.FilesystemImporter0.prototype = {
+    canonicalize$1(_, url) {
+      var resolved;
+      if (url.get$scheme() === "file")
+        resolved = A.resolveImportPath0($.$get$context().style.pathFromUri$1(A._parseUri(url)));
+      else if (url.get$scheme() !== "")
+        return null;
+      else {
+        resolved = A.resolveImportPath0(A.join(this._filesystem$_loadPath, $.$get$context().style.pathFromUri$1(A._parseUri(url)), null));
+        if (resolved != null && this._filesystem$_loadPathDeprecated)
+          A.warnForDeprecation0(string$.Using_t, B.Deprecation_kmo);
+      }
+      return A.NullableExtension_andThen0(resolved, new A.FilesystemImporter_canonicalize_closure0());
+    },
+    load$1(_, url) {
+      var path = $.$get$context().style.pathFromUri$1(A._parseUri(url));
+      return A.ImporterResult$(A.readFile0(path), url, A.Syntax_forPath0(path));
+    },
+    toString$0(_) {
+      return this._filesystem$_loadPath;
+    }
+  };
+  A.FilesystemImporter_canonicalize_closure0.prototype = {
+    call$1(resolved) {
+      var t2, t0, _null = null,
+        t1 = A.isNodeJs() ? self.process : _null;
+      if (!J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "win32")) {
+        t1 = A.isNodeJs() ? self.process : _null;
+        t1 = J.$eq$(t1 == null ? _null : J.get$platform$x(t1), "darwin");
+      } else
+        t1 = true;
+      if (t1) {
+        t1 = $.$get$context();
+        t2 = A._realCasePath0(A.absolute(t1.normalize$1(resolved), _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null));
+        t0 = t2;
+        t2 = t1;
+        t1 = t0;
+      } else {
+        t1 = $.$get$context();
+        t2 = t1.canonicalize$1(0, resolved);
+        t0 = t2;
+        t2 = t1;
+        t1 = t0;
+      }
+      return t2.toUri$1(t1);
+    },
+    $signature: 142
+  };
+  A.ForRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitForRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var _this = this,
+        t1 = _this.from.toString$0(0),
+        t2 = _this.isExclusive ? "to" : "through",
+        t3 = _this.children;
+      return "@for $" + _this.variable + " from " + t1 + " " + t2 + " " + _this.to.toString$0(0) + " {" + (t3 && B.JSArray_methods).join$1(t3, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ForwardRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitForwardRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, prefix, _this = this,
+        t1 = "@forward " + A.StringExpression_quoteText0(_this.url.toString$0(0)),
+        shownMixinsAndFunctions = _this.shownMixinsAndFunctions,
+        hiddenMixinsAndFunctions = _this.hiddenMixinsAndFunctions;
+      if (shownMixinsAndFunctions != null) {
+        t2 = _this.shownVariables;
+        t2.toString;
+        t2 = t1 + " show " + _this._forward_rule0$_memberList$2(shownMixinsAndFunctions, t2);
+        t1 = t2;
+      } else if (hiddenMixinsAndFunctions != null && hiddenMixinsAndFunctions._base.get$isNotEmpty(0)) {
+        t2 = _this.hiddenVariables;
+        t2.toString;
+        t2 = t1 + " hide " + _this._forward_rule0$_memberList$2(hiddenMixinsAndFunctions, t2);
+        t1 = t2;
+      }
+      prefix = _this.prefix;
+      if (prefix != null)
+        t1 += " as " + prefix + "*";
+      t2 = _this.configuration;
+      t1 = (t2.length !== 0 ? t1 + (" with (" + B.JSArray_methods.join$1(t2, ", ") + ")") : t1) + ";";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _forward_rule0$_memberList$2(mixinsAndFunctions, variables) {
+      var t2,
+        t1 = A.List_List$of(mixinsAndFunctions, true, type$.String);
+      for (t2 = variables._base.get$iterator(0); t2.moveNext$0();)
+        t1.push("$" + t2.get$current(0));
+      return B.JSArray_methods.join$1(t1, ", ");
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ForwardedModuleView0.prototype = {
+    get$url(_) {
+      var t1 = this._forwarded_view0$_inner;
+      return t1.get$url(t1);
+    },
+    get$upstream() {
+      return this._forwarded_view0$_inner.get$upstream();
+    },
+    get$extensionStore() {
+      return this._forwarded_view0$_inner.get$extensionStore();
+    },
+    get$css(_) {
+      var t1 = this._forwarded_view0$_inner;
+      return t1.get$css(t1);
+    },
+    get$preModuleComments() {
+      return this._forwarded_view0$_inner.get$preModuleComments();
+    },
+    get$transitivelyContainsCss() {
+      return this._forwarded_view0$_inner.get$transitivelyContainsCss();
+    },
+    get$transitivelyContainsExtensions() {
+      return this._forwarded_view0$_inner.get$transitivelyContainsExtensions();
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      var t2, _1_0, _2_0,
+        _s19_ = "Undefined variable.",
+        t1 = this._forwarded_view0$_rule,
+        _0_0 = t1.shownVariables;
+      if (_0_0 != null)
+        t2 = !_0_0._base.contains$1(0, $name);
+      else
+        t2 = false;
+      if (t2)
+        throw A.wrapException(A.SassScriptException$0(_s19_, null));
+      else {
+        _1_0 = t1.hiddenVariables;
+        if (_1_0 != null)
+          t2 = _1_0._base.contains$1(0, $name);
+        else
+          t2 = false;
+        if (t2)
+          throw A.wrapException(A.SassScriptException$0(_s19_, null));
+      }
+      _2_0 = t1.prefix;
+      if (_2_0 != null) {
+        if (!B.JSString_methods.startsWith$1($name, _2_0))
+          throw A.wrapException(A.SassScriptException$0(_s19_, null));
+        $name = B.JSString_methods.substring$1($name, _2_0.length);
+      }
+      return this._forwarded_view0$_inner.setVariable$3($name, value, nodeWithSpan);
+    },
+    variableIdentity$1($name) {
+      var _0_0 = this._forwarded_view0$_rule.prefix;
+      if (_0_0 != null)
+        $name = B.JSString_methods.substring$1($name, _0_0.length);
+      return this._forwarded_view0$_inner.variableIdentity$1($name);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.ForwardedModuleView0 && this._forwarded_view0$_inner.$eq(0, other._forwarded_view0$_inner) && this._forwarded_view0$_rule === other._forwarded_view0$_rule;
+    },
+    get$hashCode(_) {
+      var t1 = this._forwarded_view0$_inner;
+      return (t1.get$hashCode(t1) ^ A.Primitives_objectHashCode(this._forwarded_view0$_rule)) >>> 0;
+    },
+    cloneCss$0() {
+      return A.ForwardedModuleView$0(this._forwarded_view0$_inner.cloneCss$0(), this._forwarded_view0$_rule, this.$ti._precomputed1);
+    },
+    toString$0(_) {
+      return "forwarded " + this._forwarded_view0$_inner.toString$0(0);
+    },
+    $isModule1: 1,
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    }
+  };
+  A.FunctionExpression0.prototype = {
+    get$nameSpan() {
+      if (this.namespace == null)
+        return A.SpanExtensions_initialIdentifier0(this.span);
+      return A.SpanExtensions_initialIdentifier0(A.FileSpanExtension_subspan(A.SpanExtensions_withoutInitialIdentifier0(this.span), 1, null));
+    },
+    accept$1$1(visitor) {
+      return visitor.visitFunctionExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.namespace;
+      t1 = t1 != null ? "" + (t1 + ".") : "";
+      t1 += this.originalName + this.$arguments.toString$0(0);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.JSFunction0.prototype = {};
+  A.SupportsFunction0.prototype = {
+    toString$0(_) {
+      return this.name.toString$0(0) + "(" + this.$arguments.toString$0(0) + ")";
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.functionClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassFunction", new A.functionClass__closure()));
+      A.JSClassExtension_injectSuperclass(t1._as(new A.SassFunction0(A.BuiltInCallable$function0("f", "", new A.functionClass__closure0(), null)).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.functionClass__closure.prototype = {
+    call$3($self, signature, callback) {
+      var paren = B.JSString_methods.indexOf$1(signature, "(");
+      if (paren === -1 || !B.JSString_methods.endsWith$1(signature, ")"))
+        A.jsThrow(new self.Error('Invalid signature for new sass.SassFunction(): "' + signature + '"'));
+      return new A.SassFunction0(A.BuiltInCallable$function0(B.JSString_methods.substring$2(signature, 0, paren), B.JSString_methods.substring$2(signature, paren + 1, signature.length - 1), callback, null));
+    },
+    "call*": "call$3",
+    $requiredArgCount: 3,
+    $signature: 454
+  };
+  A.functionClass__closure0.prototype = {
+    call$1(_) {
+      return B.C__SassNull0;
+    },
+    $signature: 3
+  };
+  A.SassFunction0.prototype = {
+    accept$1$1(visitor) {
+      var t1, t2;
+      if (!visitor._serialize0$_inspect)
+        A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " isn't a valid CSS value.", null));
+      t1 = visitor._serialize0$_buffer;
+      t1.write$1(0, "get-function(");
+      t2 = this.callable;
+      visitor._serialize0$_visitQuotedString$1(t2.get$name(t2));
+      t1.writeCharCode$1(41);
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertFunction$1($name) {
+      return this;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassFunction0 && this.callable.$eq(0, other.callable);
+    },
+    get$hashCode(_) {
+      var t1 = this.callable;
+      return t1.get$hashCode(t1);
+    }
+  };
+  A.FunctionRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitFunctionRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@function " + this.name + "(" + this.$arguments.toString$0(0) + ") {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    }
+  };
+  A.unifyComplex_closure0.prototype = {
+    call$1(complex) {
+      return complex.lineBreak;
+    },
+    $signature: 18
+  };
+  A._weaveParents_closure3.prototype = {
+    call$2(group1, group2) {
+      var t1, unified;
+      if (B.C_ListEquality.equals$2(0, group1, group2))
+        return group1;
+      if (A._complexIsParentSuperselector0(group1, group2))
+        return group2;
+      if (A._complexIsParentSuperselector0(group2, group1))
+        return group1;
+      if (!A._mustUnify0(group1, group2))
+        return null;
+      t1 = this.span;
+      unified = A.unifyComplex0(A._setArrayType([A.ComplexSelector$0(B.List_empty14, group1, t1, false), A.ComplexSelector$0(B.List_empty14, group2, t1, false)], type$.JSArray_ComplexSelector_2), t1);
+      if (unified == null)
+        t1 = null;
+      else {
+        t1 = A.IterableExtension_get_singleOrNull(unified);
+        t1 = t1 == null ? null : t1.components;
+      }
+      return t1;
+    },
+    $signature: 455
+  };
+  A._weaveParents_closure4.prototype = {
+    call$1(sequence) {
+      return A._complexIsParentSuperselector0(sequence.get$first(sequence), this.group);
+    },
+    $signature: 250
+  };
+  A._weaveParents_closure5.prototype = {
+    call$1(sequence) {
+      return sequence.get$length(0) === 0;
+    },
+    $signature: 250
+  };
+  A._weaveParents_closure6.prototype = {
+    call$1(choice) {
+      return J.get$isNotEmpty$asx(choice);
+    },
+    $signature: 457
+  };
+  A._mustUnify_closure0.prototype = {
+    call$1(component) {
+      return B.JSArray_methods.any$1(component.selector.components, new A._mustUnify__closure0(this.uniqueSelectors));
+    },
+    $signature: 51
+  };
+  A._mustUnify__closure0.prototype = {
+    call$1(simple) {
+      var t1;
+      if (!(simple instanceof A.IDSelector0))
+        t1 = simple instanceof A.PseudoSelector0 && !simple.isClass;
+      else
+        t1 = true;
+      return t1 && this.uniqueSelectors.contains$1(0, simple);
+    },
+    $signature: 15
+  };
+  A.paths_closure0.prototype = {
+    call$2(paths, choice) {
+      var t1 = this.T;
+      t1 = J.expand$1$1$ax(choice, new A.paths__closure0(paths, t1), t1._eval$1("List<0>"));
+      return A.List_List$of(t1, true, t1.$ti._eval$1("Iterable.E"));
+    },
+    $signature() {
+      return this.T._eval$1("List<List<0>>(List<List<0>>,List<0>)");
+    }
+  };
+  A.paths__closure0.prototype = {
+    call$1(option) {
+      var t1 = this.T;
+      return J.map$1$1$ax(this.paths, new A.paths___closure0(option, t1), t1._eval$1("List<0>"));
+    },
+    $signature() {
+      return this.T._eval$1("Iterable<List<0>>(0)");
+    }
+  };
+  A.paths___closure0.prototype = {
+    call$1(path) {
+      var t1 = A.List_List$of(path, true, this.T);
+      t1.push(this.option);
+      return t1;
+    },
+    $signature() {
+      return this.T._eval$1("List<0>(List<0>)");
+    }
+  };
+  A.listIsSuperselector_closure0.prototype = {
+    call$1(complex1) {
+      return B.JSArray_methods.any$1(this.list1, new A.listIsSuperselector__closure0(complex1));
+    },
+    $signature: 18
+  };
+  A.listIsSuperselector__closure0.prototype = {
+    call$1(complex2) {
+      return complex2.isSuperselector$1(this.complex1);
+    },
+    $signature: 18
+  };
+  A.complexIsSuperselector_closure1.prototype = {
+    call$1($parent) {
+      return $parent.combinators.length > 1;
+    },
+    $signature: 51
+  };
+  A.complexIsSuperselector_closure2.prototype = {
+    call$1(component) {
+      return A._isSupercombinator0(this.combinator1, A.IterableExtension_get_firstOrNull(component.combinators));
+    },
+    $signature: 51
+  };
+  A._compatibleWithPreviousCombinator_closure0.prototype = {
+    call$1(component) {
+      var t1 = component.combinators,
+        t2 = A.IterableExtension_get_firstOrNull(t1);
+      if (!J.$eq$(t2 == null ? null : t2.value, B.Combinator_y180)) {
+        t1 = A.IterableExtension_get_firstOrNull(t1);
+        t1 = J.$eq$(t1 == null ? null : t1.value, B.Combinator_gRV0);
+      } else
+        t1 = true;
+      return t1;
+    },
+    $signature: 51
+  };
+  A._selectorPseudoIsSuperselector_closure6.prototype = {
+    call$1(selector2) {
+      return A.listIsSuperselector0(this.selector1.components, selector2.components);
+    },
+    $signature: 70
+  };
+  A._selectorPseudoIsSuperselector_closure7.prototype = {
+    call$1(complex1) {
+      var t1, t2;
+      if (complex1.leadingCombinators.length === 0) {
+        t1 = A._setArrayType([], type$.JSArray_ComplexSelectorComponent_2);
+        t2 = this.parents;
+        if (t2 != null)
+          B.JSArray_methods.addAll$1(t1, t2);
+        t2 = this.compound2;
+        t1.push(new A.ComplexSelectorComponent0(t2, A.List_List$unmodifiable(B.List_empty14, type$.CssValue_Combinator_2), t2.span));
+        t1 = A.complexIsSuperselector0(complex1.components, t1);
+      } else
+        t1 = false;
+      return t1;
+    },
+    $signature: 18
+  };
+  A._selectorPseudoIsSuperselector_closure8.prototype = {
+    call$1(selector2) {
+      return A.listIsSuperselector0(this.selector1.components, selector2.components);
+    },
+    $signature: 70
+  };
+  A._selectorPseudoIsSuperselector_closure9.prototype = {
+    call$1(selector2) {
+      return A.listIsSuperselector0(this.selector1.components, selector2.components);
+    },
+    $signature: 70
+  };
+  A._selectorPseudoIsSuperselector_closure10.prototype = {
+    call$1(complex) {
+      if (complex.accept$1(B._IsBogusVisitor_true0))
+        return false;
+      return B.JSArray_methods.any$1(this.compound2.components, new A._selectorPseudoIsSuperselector__closure0(complex, this.pseudo1));
+    },
+    $signature: 18
+  };
+  A._selectorPseudoIsSuperselector__closure0.prototype = {
+    call$1(simple2) {
+      var t1, _0_4, selector2, _this = this;
+      $label0$1: {
+        if (simple2 instanceof A.TypeSelector0) {
+          t1 = B.JSArray_methods.any$1(B.JSArray_methods.get$last(_this.complex.components).selector.components, new A._selectorPseudoIsSuperselector___closure1(simple2));
+          break $label0$1;
+        }
+        if (simple2 instanceof A.IDSelector0) {
+          t1 = B.JSArray_methods.any$1(B.JSArray_methods.get$last(_this.complex.components).selector.components, new A._selectorPseudoIsSuperselector___closure2(simple2));
+          break $label0$1;
+        }
+        if (simple2 instanceof A.PseudoSelector0) {
+          _0_4 = simple2.selector;
+          if (_0_4 != null) {
+            selector2 = _0_4 == null ? type$.SelectorList_2._as(_0_4) : _0_4;
+            t1 = simple2.name === _this.pseudo1.name;
+          } else {
+            selector2 = null;
+            t1 = false;
+          }
+        } else {
+          selector2 = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = A.listIsSuperselector0(selector2.components, A._setArrayType([_this.complex], type$.JSArray_ComplexSelector_2));
+          break $label0$1;
+        }
+        t1 = false;
+        break $label0$1;
+      }
+      return t1;
+    },
+    $signature: 15
+  };
+  A._selectorPseudoIsSuperselector___closure1.prototype = {
+    call$1(simple1) {
+      var t1;
+      if (simple1 instanceof A.TypeSelector0) {
+        t1 = this.simple2;
+        t1 = !(t1 instanceof A.TypeSelector0 && t1.name.$eq(0, simple1.name));
+      } else
+        t1 = false;
+      return t1;
+    },
+    $signature: 15
+  };
+  A._selectorPseudoIsSuperselector___closure2.prototype = {
+    call$1(simple1) {
+      var t1;
+      if (simple1 instanceof A.IDSelector0) {
+        t1 = this.simple2;
+        t1 = !(t1 instanceof A.IDSelector0 && t1.name === simple1.name);
+      } else
+        t1 = false;
+      return t1;
+    },
+    $signature: 15
+  };
+  A._selectorPseudoIsSuperselector_closure11.prototype = {
+    call$1(selector2) {
+      var t1 = B.C_ListEquality.equals$2(0, this.selector1.components, selector2.components);
+      return t1;
+    },
+    $signature: 70
+  };
+  A._selectorPseudoIsSuperselector_closure12.prototype = {
+    call$1(pseudo2) {
+      var t1, selector2;
+      if (!(pseudo2 instanceof A.PseudoSelector0))
+        return false;
+      t1 = this.pseudo1;
+      if (pseudo2.name !== t1.name)
+        return false;
+      if (pseudo2.argument != t1.argument)
+        return false;
+      selector2 = pseudo2.selector;
+      if (selector2 == null)
+        return false;
+      return A.listIsSuperselector0(this.selector1.components, selector2.components);
+    },
+    $signature: 15
+  };
+  A._selectorPseudoArgs_closure1.prototype = {
+    call$1(pseudo) {
+      return pseudo.isClass === this.isClass && pseudo.name === this.name;
+    },
+    $signature: 459
+  };
+  A._selectorPseudoArgs_closure2.prototype = {
+    call$1(pseudo) {
+      return pseudo.selector;
+    },
+    $signature: 460
+  };
+  A.globalFunctions_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return t1.$index($arguments, 0).get$isTruthy() ? t1.$index($arguments, 1) : t1.$index($arguments, 2);
+    },
+    $signature: 3
+  };
+  A.IDSelector0.prototype = {
+    get$specificity() {
+      return A._asInt(Math.pow(A.SimpleSelector0.prototype.get$specificity.call(this), 2));
+    },
+    accept$1$1(visitor) {
+      return visitor.visitIDSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      return new A.IDSelector0(this.name + suffix, this.span);
+    },
+    unify$1(compound) {
+      if (B.JSArray_methods.any$1(compound, new A.IDSelector_unify_closure0(this)))
+        return null;
+      return this.super$SimpleSelector$unify0(compound);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.IDSelector0 && other.name === this.name;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    }
+  };
+  A.IDSelector_unify_closure0.prototype = {
+    call$1(simple) {
+      var t1;
+      if (simple instanceof A.IDSelector0)
+        t1 = this.$this.name !== simple.name;
+      else
+        t1 = false;
+      return t1;
+    },
+    $signature: 15
+  };
+  A.IfExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitIfExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "if" + this.$arguments.toString$0(0);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.IfRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitIfRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var result = A.ListExtensions_mapIndexed(this.clauses, new A.IfRule_toString_closure0(), type$.IfClause_2, type$.String).join$1(0, " "),
+        lastClause = this.lastClause;
+      return lastClause != null ? result + (" " + lastClause.toString$0(0)) : result;
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.IfRule_toString_closure0.prototype = {
+    call$2(index, clause) {
+      var t1 = index === 0 ? "if" : "else if";
+      return "@" + t1 + " " + clause.expression.toString$0(0) + " {" + B.JSArray_methods.join$1(clause.children, " ") + "}";
+    },
+    $signature: 461
+  };
+  A.IfRuleClause0.prototype = {};
+  A.IfRuleClause$__closure0.prototype = {
+    call$1(child) {
+      var t1;
+      $label0$0: {
+        if (child instanceof A.VariableDeclaration0 || child instanceof A.FunctionRule0 || child instanceof A.MixinRule0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (child instanceof A.ImportRule0) {
+          t1 = B.JSArray_methods.any$1(child.imports, new A.IfRuleClause$___closure0());
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 249
+  };
+  A.IfRuleClause$___closure0.prototype = {
+    call$1($import) {
+      return $import instanceof A.DynamicImport0;
+    },
+    $signature: 245
+  };
+  A.IfClause0.prototype = {
+    toString$0(_) {
+      return "@if " + this.expression.toString$0(0) + " {" + B.JSArray_methods.join$1(this.children, " ") + "}";
+    }
+  };
+  A.ElseClause0.prototype = {
+    toString$0(_) {
+      return "@else {" + B.JSArray_methods.join$1(this.children, " ") + "}";
+    }
+  };
+  A.ImmutableList0.prototype = {};
+  A.ImmutableMap0.prototype = {};
+  A.immutableMapToDartMap_closure.prototype = {
+    call$3(value, key, _) {
+      this.dartMap.$indexSet(0, key, value);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 3,
+    $signature: 464
+  };
+  A.NodeImporter.prototype = {
+    loadRelative$3(url, previous, forImport) {
+      var t1, t2, _null = null;
+      if ($.$get$url().style.rootLength$1(url) > 0) {
+        if (!B.JSString_methods.startsWith$1(url, "/") && !B.JSString_methods.startsWith$1(url, "file:"))
+          return _null;
+        return this._tryPath$2($.$get$context().style.pathFromUri$1(A._parseUri(url)), forImport);
+      }
+      if ((previous == null ? _null : previous.get$scheme()) !== "file")
+        return _null;
+      t1 = $.$get$context();
+      previous.toString;
+      t2 = t1.style;
+      return this._tryPath$2(A.join(t1.dirname$1(t2.pathFromUri$1(A._parseUri(previous))), t2.pathFromUri$1(A._parseUri(url)), _null), forImport);
+    },
+    load$3(_, url, previous, forImport) {
+      var t1, t2, _i, _0_0, _this = this,
+        previousString = _this._previousToString$1(previous);
+      for (t1 = _this._implementation$_importers, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        _0_0 = A.wrapJSExceptions(new A.NodeImporter_load_closure(_this, t1[_i], forImport, url, previousString));
+        if (_0_0 != null)
+          return _this._handleImportResult$4(url, previous, _0_0, forImport);
+      }
+      return _this._resolveLoadPathFromUrl$2(A.Uri_parse(url), forImport);
+    },
+    loadAsync$3(url, previous, forImport) {
+      return this.loadAsync$body$NodeImporter(url, previous, forImport);
+    },
+    loadAsync$body$NodeImporter(url, previous, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Record_2_String_and_String),
+        $async$returnValue, $async$self = this, t1, t2, _i, _0_0, previousString;
+      var $async$loadAsync$3 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              previousString = $async$self._previousToString$1(previous);
+              t1 = $async$self._implementation$_importers, t2 = t1.length, _i = 0;
+            case 3:
+              // for condition
+              if (!(_i < t2)) {
+                // goto after for
+                $async$goto = 5;
+                break;
+              }
+              $async$goto = 6;
+              return A._asyncAwait($async$self._callImporterAsync$4(t1[_i], url, previousString, forImport), $async$loadAsync$3);
+            case 6:
+              // returning from await.
+              _0_0 = $async$result;
+              if (_0_0 != null) {
+                $async$returnValue = $async$self._handleImportResult$4(url, previous, _0_0, forImport);
+                // goto return
+                $async$goto = 1;
+                break;
+              }
+            case 4:
+              // for update
+              ++_i;
+              // goto for condition
+              $async$goto = 3;
+              break;
+            case 5:
+              // after for
+              $async$returnValue = $async$self._resolveLoadPathFromUrl$2(A.Uri_parse(url), forImport);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$loadAsync$3, $async$completer);
+    },
+    _previousToString$1(previous) {
+      var t1;
+      $label0$0: {
+        if (previous == null) {
+          t1 = "stdin";
+          break $label0$0;
+        }
+        if ("file" === previous.get$scheme()) {
+          t1 = $.$get$context().style.pathFromUri$1(A._parseUri(previous));
+          break $label0$0;
+        }
+        t1 = previous.toString$0(0);
+        break $label0$0;
+      }
+      return t1;
+    },
+    _resolveLoadPathFromUrl$2(url, forImport) {
+      return url.get$scheme() === "" || url.get$scheme() === "file" ? this._resolveLoadPath$2($.$get$context().style.pathFromUri$1(A._parseUri(url)), forImport) : null;
+    },
+    _resolveLoadPath$2(path, forImport) {
+      var t1, t2, _i, t3, _1_0, _null = null,
+        _0_0 = this._tryPath$2(A.absolute(path, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), forImport);
+      if (_0_0 != null)
+        return _0_0;
+      for (t1 = this._includePaths, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        t3 = A.join(t1[_i], path, _null);
+        _1_0 = this._tryPath$2($.$get$context().absolute$15(t3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), forImport);
+        if (_1_0 != null)
+          return _1_0;
+      }
+      return _null;
+    },
+    _tryPath$2(path, forImport) {
+      var t1 = forImport ? A.inImportRule(new A.NodeImporter__tryPath_closure(path), type$.nullable_String) : A.resolveImportPath0(path);
+      return A.NullableExtension_andThen0(t1, new A.NodeImporter__tryPath_closure0());
+    },
+    _handleImportResult$4(url, previous, value, forImport) {
+      var t1, file, contents, t2, resolved;
+      if (value instanceof self.Error)
+        throw A.wrapException(value);
+      if (!type$.NodeImporterResult._is(value))
+        return null;
+      t1 = J.getInterceptor$x(value);
+      file = t1.get$file(value);
+      contents = t1.get$contents(value);
+      t1 = contents == null;
+      t2 = !t1;
+      if (t2 && A._asString(new self.Function("value", "return typeof value").call$1(contents)) !== "string")
+        A.jsThrow(new A.ArgumentError(true, contents, "contents", "must be a string but was: " + A.jsType(contents)));
+      if (file == null)
+        return new A._Record_2(t1 ? "" : contents, url);
+      else if (t2)
+        return new A._Record_2(contents, $.$get$context().toUri$1(file).toString$0(0));
+      else {
+        resolved = this.loadRelative$3($.$get$context().toUri$1(file).toString$0(0), previous, forImport);
+        if (resolved == null)
+          resolved = this._resolveLoadPath$2(file, forImport);
+        if (resolved != null)
+          return resolved;
+        throw A.wrapException("Can't find stylesheet to import.");
+      }
+    },
+    _callImporterAsync$4(importer, url, previousString, forImport) {
+      return this._callImporterAsync$body$NodeImporter(importer, url, previousString, forImport);
+    },
+    _callImporterAsync$body$NodeImporter(importer, url, previousString, forImport) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.nullable_Object),
+        $async$returnValue, $async$self = this, t1, result;
+      var $async$_callImporterAsync$4 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = new A._Future($.Zone__current, type$._Future_Object);
+              result = A.wrapJSExceptions(new A.NodeImporter__callImporterAsync_closure($async$self, importer, forImport, url, previousString, new A._AsyncCompleter(t1, type$._AsyncCompleter_Object)));
+              $async$goto = A._asBool($.$get$_isUndefined().call$1(result)) ? 3 : 4;
+              break;
+            case 3:
+              // then
+              $async$goto = 5;
+              return A._asyncAwait(t1, $async$_callImporterAsync$4);
+            case 5:
+              // returning from await.
+              $async$returnValue = $async$result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 4:
+              // join
+              $async$returnValue = result;
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$_callImporterAsync$4, $async$completer);
+    },
+    _renderContext$1(fromImport) {
+      var context = {options: type$.RenderContextOptions._as(this._implementation$_options), fromImport: fromImport};
+      J.set$context$x(J.get$options$x(context), context);
+      return context;
+    }
+  };
+  A.NodeImporter_load_closure.prototype = {
+    call$0() {
+      var _this = this;
+      return J.apply$2$x(_this.importer, _this.$this._renderContext$1(_this.forImport), A._setArrayType([_this.url, _this.previousString], type$.JSArray_Object));
+    },
+    $signature: 31
+  };
+  A.NodeImporter__tryPath_closure.prototype = {
+    call$0() {
+      return A.resolveImportPath0(this.path);
+    },
+    $signature: 44
+  };
+  A.NodeImporter__tryPath_closure0.prototype = {
+    call$1(resolved) {
+      return new A._Record_2(A.readFile0(resolved), $.$get$context().toUri$1(resolved).toString$0(0));
+    },
+    $signature: 465
+  };
+  A.NodeImporter__callImporterAsync_closure.prototype = {
+    call$0() {
+      var _this = this;
+      return J.apply$2$x(_this.importer, _this.$this._renderContext$1(_this.forImport), A._setArrayType([_this.url, _this.previousString, A.allowInterop(_this.completer.get$complete())], type$.JSArray_Object));
+    },
+    $signature: 31
+  };
+  A.ModifiableCssImport0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssImport$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ImportCache0.prototype = {
+    canonicalize$4$baseImporter$baseUrl$forImport(_, url, baseImporter, baseUrl, forImport) {
+      var t1, resolvedUrl, key, relativeResult, t2, t3, t4, t5, t6, cacheable, i, importer, perImporterKey, t7, _1_0, _1_2_isSet, _1_2, result, _2_0, _2_1, _2_5_isSet, _2_3, _2_5, _2_3_isSet, j, _this = this, _null = null;
+      if (A.isBrowser())
+        t1 = (baseImporter == null || baseImporter instanceof A.NoOpImporter0) && _this._import_cache$_importers.length === 0;
+      else
+        t1 = false;
+      if (t1)
+        throw A.wrapException(string$.Custom);
+      if (baseImporter != null && url.get$scheme() === "") {
+        resolvedUrl = baseUrl == null ? _null : baseUrl.resolveUri$1(url);
+        if (resolvedUrl == null)
+          resolvedUrl = url;
+        key = new A._Record_3_forImport(baseImporter, resolvedUrl, forImport);
+        relativeResult = _this._import_cache$_perImporterCanonicalizeCache.putIfAbsent$2(key, new A.ImportCache_canonicalize_closure0(_this, baseImporter, resolvedUrl, baseUrl, forImport, key, url));
+        if (relativeResult != null)
+          return relativeResult;
+      }
+      key = new A._Record_2_forImport(url, forImport);
+      t1 = _this._import_cache$_canonicalizeCache;
+      if (t1.containsKey$1(key))
+        return t1.$index(0, key);
+      for (t2 = _this._import_cache$_importers, t3 = type$.Record_1_nullable_Object, t4 = _this._import_cache$_perImporterCanonicalizeCache, t5 = type$.nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl_2, t6 = type$.Record_3_Importer_and_Uri_and_Uri_originalUrl_2, cacheable = true, i = 0; i < t2.length; ++i) {
+        importer = t2[i];
+        perImporterKey = new A._Record_3_forImport(importer, url, forImport);
+        if (t4.containsKey$1(perImporterKey)) {
+          t7 = t4.$index(0, perImporterKey);
+          _1_0 = new A._Record_1(t7 == null ? t5._as(t7) : t7);
+        } else
+          _1_0 = _null;
+        _1_2_isSet = t3._is(_1_0);
+        if (_1_2_isSet) {
+          _1_2 = _1_0._0;
+          t7 = _1_2 != null;
+          if (t7) {
+            t6._as(_1_2);
+            result = _1_2;
+          } else
+            result = _null;
+        } else {
+          result = _null;
+          _1_2 = result;
+          t7 = false;
+        }
+        if (t7)
+          return result;
+        if (_1_2_isSet)
+          t7 = _1_2 == null;
+        else
+          t7 = false;
+        if (t7)
+          continue;
+        $label0$1: {
+          _2_0 = _this._import_cache$_canonicalize$4(importer, url, baseUrl, forImport);
+          _2_1 = _2_0._0;
+          _2_5_isSet = _2_1 != null;
+          if (_2_5_isSet) {
+            result = _2_1 == null ? t6._as(_2_1) : _2_1;
+            _2_3 = _2_0._1;
+            t7 = _2_3;
+            _2_5 = t7;
+            t7 = t7 && cacheable;
+          } else {
+            result = _null;
+            _2_3 = result;
+            _2_5 = _2_3;
+            t7 = false;
+          }
+          if (t7) {
+            t1.$indexSet(0, key, result);
+            return result;
+          }
+          if (_2_5_isSet) {
+            t7 = _2_5;
+            _2_3_isSet = _2_5_isSet;
+          } else {
+            _2_3 = _2_0._1;
+            t7 = _2_3;
+            _2_3_isSet = true;
+          }
+          t7 = t7 && !cacheable;
+          if (t7) {
+            t4.$indexSet(0, perImporterKey, _2_1);
+            if (_2_1 != null)
+              return _2_1;
+            break $label0$1;
+          }
+          t7 = false === (_2_3_isSet ? _2_3 : _2_0._1);
+          if (t7) {
+            if (cacheable) {
+              for (j = 0; j < i; ++j)
+                t4.$indexSet(0, new A._Record_3_forImport(t2[j], url, forImport), _null);
+              cacheable = false;
+            }
+            if (_2_1 != null)
+              return _2_1;
+          }
+        }
+      }
+      if (cacheable)
+        t1.$indexSet(0, key, _null);
+      return _null;
+    },
+    _import_cache$_canonicalize$4(importer, url, baseUrl, forImport) {
+      var passContainingUrl, canonicalizeContext, t1, result, cacheable, _null = null;
+      if (baseUrl != null)
+        passContainingUrl = url.get$scheme() === "" || importer.isNonCanonicalScheme$1(url.get$scheme());
+      else
+        passContainingUrl = false;
+      canonicalizeContext = new A.CanonicalizeContext0(forImport, passContainingUrl ? baseUrl : _null);
+      t1 = type$.nullable_Object;
+      result = A.runZoned(new A.ImportCache__canonicalize_closure0(importer, url), A.LinkedHashMap_LinkedHashMap$_literal([B.Symbol__canonicalizeContext, canonicalizeContext], t1, t1), type$.nullable_Uri);
+      cacheable = !passContainingUrl || !canonicalizeContext._canonicalize_context$_wasContainingUrlAccessed;
+      if (result == null)
+        return new A._Record_2(_null, cacheable);
+      if (result.get$scheme() === "")
+        A.WarnForDeprecation_warnForDeprecation0(this._import_cache$_logger, B.Deprecation_Ssf, "Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2e_Rela, _null, _null);
+      else if (importer.isNonCanonicalScheme$1(result.get$scheme()))
+        throw A.wrapException("Importer " + importer.toString$0(0) + " canonicalized " + url.toString$0(0) + " to " + result.toString$0(0) + string$.x2c_whicu);
+      return new A._Record_2(new A._Record_3_originalUrl(importer, result, url), cacheable);
+    },
+    importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, quiet) {
+      return this._import_cache$_importCache.putIfAbsent$2(canonicalUrl, new A.ImportCache_importCanonical_closure0(this, importer, canonicalUrl, originalUrl, quiet));
+    },
+    importCanonical$3$originalUrl(importer, canonicalUrl, originalUrl) {
+      return this.importCanonical$4$originalUrl$quiet(importer, canonicalUrl, originalUrl, false);
+    },
+    humanize$1(canonicalUrl) {
+      var t1 = A.IterableNullableExtension_whereNotNull(this._import_cache$_canonicalizeCache.get$values(0), type$.Record_3_Importer_and_Uri_and_Uri_originalUrl_2),
+        t2 = t1.$ti;
+      t2 = A.NullableExtension_andThen0(A.minBy(new A.MappedIterable(new A.WhereIterable(t1, new A.ImportCache_humanize_closure3(canonicalUrl), t2._eval$1("WhereIterable<Iterable.E>")), new A.ImportCache_humanize_closure4(), t2._eval$1("MappedIterable<Iterable.E,Uri>")), new A.ImportCache_humanize_closure5()), new A.ImportCache_humanize_closure6(canonicalUrl));
+      return t2 == null ? canonicalUrl : t2;
+    },
+    sourceMapUrl$1(_, canonicalUrl) {
+      var t1 = this._import_cache$_resultsCache.$index(0, canonicalUrl);
+      t1 = t1 == null ? null : t1.get$sourceMapUrl(0);
+      return t1 == null ? canonicalUrl : t1;
+    }
+  };
+  A.ImportCache_canonicalize_closure0.prototype = {
+    call$0() {
+      var _this = this,
+        t1 = _this.$this,
+        t2 = _this.baseUrl,
+        _0_0 = t1._import_cache$_canonicalize$4(_this.baseImporter, _this.resolvedUrl, t2, _this.forImport);
+      if (t2 != null)
+        t1._import_cache$_nonCanonicalRelativeUrls.$indexSet(0, _this.key, _this.url);
+      return _0_0._0;
+    },
+    $signature: 630
+  };
+  A.ImportCache__canonicalize_closure0.prototype = {
+    call$0() {
+      return this.importer.canonicalize$1(0, this.url);
+    },
+    $signature: 141
+  };
+  A.ImportCache_importCanonical_closure0.prototype = {
+    call$0() {
+      var t2, t3, t4, _this = this,
+        t1 = _this.canonicalUrl,
+        result = _this.importer.load$1(0, t1);
+      if (result == null)
+        return null;
+      t2 = _this.$this;
+      t2._import_cache$_resultsCache.$indexSet(0, t1, result);
+      t3 = result.contents;
+      t4 = result.syntax;
+      t1 = _this.originalUrl.resolveUri$1(t1);
+      return A.Stylesheet_Stylesheet$parse0(t3, t4, _this.quiet ? $.$get$Logger_quiet0() : t2._import_cache$_logger, t1);
+    },
+    $signature: 467
+  };
+  A.ImportCache_humanize_closure3.prototype = {
+    call$1(result) {
+      return J.$eq$(result._1, this.canonicalUrl);
+    },
+    $signature: 468
+  };
+  A.ImportCache_humanize_closure4.prototype = {
+    call$1(result) {
+      return result._2;
+    },
+    $signature: 469
+  };
+  A.ImportCache_humanize_closure5.prototype = {
+    call$1(url) {
+      return url.get$path(url).length;
+    },
+    $signature: 85
+  };
+  A.ImportCache_humanize_closure6.prototype = {
+    call$1(url) {
+      var t1 = $.$get$url(),
+        t2 = this.canonicalUrl;
+      return url.resolve$1(0, A.ParsedPath_ParsedPath$parse(t2.get$path(t2), t1.style).get$basename());
+    },
+    $signature: 46
+  };
+  A.ImportRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitImportRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@import " + B.JSArray_methods.join$1(this.imports, ", ") + ";";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.JSImporter.prototype = {};
+  A.JSImporterResult.prototype = {};
+  A.Importer0.prototype = {
+    isNonCanonicalScheme$1(scheme) {
+      return false;
+    }
+  };
+  A.NodeImporterResult0.prototype = {};
+  A.IncludeRule0.prototype = {
+    get$spanWithoutContent() {
+      var t2, t3,
+        t1 = this.span;
+      if (!(this.content == null)) {
+        t2 = t1.file;
+        t3 = this.$arguments.span;
+        t3 = A.SpanExtensions_trimRight0(A.SpanExtensions_trimLeft0(t2.span$2(0, A.FileLocation$_(t2, t1._file$_start).offset, t3.get$end(t3).offset)));
+        t1 = t3;
+      }
+      return t1;
+    },
+    get$nameSpan() {
+      var startSpan, scanner, _null = null,
+        t1 = this.span,
+        t2 = t1._file$_start,
+        t3 = t1._end,
+        t4 = t1.file._decodedChars;
+      if (B.JSString_methods.startsWith$1(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t4, t2, t3), 0, _null), "+"))
+        startSpan = A.SpanExtensions_trimLeft0(A.FileSpanExtension_subspan(t1, 1, _null));
+      else {
+        scanner = A.StringScanner$(A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t4, t2, t3), 0, _null), _null, _null);
+        scanner.expectChar$1(64);
+        A._scanIdentifier0(scanner);
+        startSpan = A.SpanExtensions_trimLeft0(A.FileSpanExtension_subspan(t1, scanner._string_scanner$_position, _null));
+      }
+      return A.SpanExtensions_initialIdentifier0(this.namespace != null ? A.FileSpanExtension_subspan(A.SpanExtensions_withoutInitialIdentifier0(startSpan), 1, _null) : startSpan);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitIncludeRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, _this = this,
+        t1 = _this.namespace;
+      t1 = t1 != null ? "@include " + (t1 + ".") : "@include ";
+      t1 += _this.name;
+      t2 = _this.$arguments;
+      if (!t2.get$isEmpty(0))
+        t1 += "(" + t2.toString$0(0) + ")";
+      t2 = _this.content;
+      t1 += t2 == null ? ";" : " " + t2.toString$0(0);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.InterpolatedFunctionExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitInterpolatedFunctionExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.name.toString$0(0) + this.$arguments.toString$0(0);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Interpolation0.prototype = {
+    get$asPlain() {
+      var _0_1, t1, _0_6_isSet, _0_6, first, _null = null,
+        _0_0 = this.contents;
+      $label0$0: {
+        _0_1 = _0_0.length;
+        if (_0_1 <= 0) {
+          t1 = "";
+          break $label0$0;
+        }
+        _0_6_isSet = _0_1 === 1;
+        if (_0_6_isSet) {
+          _0_6 = _0_0[0];
+          t1 = _0_6;
+          t1 = typeof t1 == "string";
+        } else {
+          _0_6 = _null;
+          t1 = false;
+        }
+        if (t1) {
+          first = A._asString(_0_6_isSet ? _0_6 : _0_0[0]);
+          t1 = first;
+          break $label0$0;
+        }
+        t1 = _null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    get$initialPlain() {
+      var _0_4_isSet, _0_4, t1, first,
+        _0_0 = this.contents;
+      $label0$0: {
+        _0_4_isSet = _0_0.length >= 1;
+        if (_0_4_isSet) {
+          _0_4 = _0_0[0];
+          t1 = _0_4;
+          t1 = typeof t1 == "string";
+        } else {
+          _0_4 = null;
+          t1 = false;
+        }
+        if (t1) {
+          first = A._asString(_0_4_isSet ? _0_4 : _0_0[0]);
+          t1 = first;
+          break $label0$0;
+        }
+        t1 = "";
+        break $label0$0;
+      }
+      return t1;
+    },
+    Interpolation$20(contents, span) {
+      var t1, t2, t3, i, t4, t5,
+        _s8_ = "contents";
+      for (t1 = this.contents, t2 = t1.length, t3 = type$.Expression_2, i = 0; i < t2; ++i) {
+        t4 = t1[i];
+        t5 = typeof t4 == "string";
+        if (!t5 && !t3._is(t4))
+          throw A.wrapException(A.ArgumentError$value(t1, _s8_, string$.May_on));
+        if (i !== 0 && typeof t1[i - 1] == "string" && t5)
+          throw A.wrapException(A.ArgumentError$value(t1, _s8_, "May not contain adjacent Strings."));
+      }
+    },
+    toString$0(_) {
+      var t1 = this.contents;
+      return new A.MappedListIterable(t1, new A.Interpolation_toString_closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$0(0);
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Interpolation_toString_closure0.prototype = {
+    call$1(value) {
+      return typeof value == "string" ? value : "#{" + A.S(value) + "}";
+    },
+    $signature: 117
+  };
+  A.SupportsInterpolation0.prototype = {
+    toString$0(_) {
+      return "#{" + this.expression.toString$0(0) + "}";
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.InterpolationBuffer0.prototype = {
+    writeCharCode$1(character) {
+      var t1 = this._interpolation_buffer0$_text,
+        t2 = A.Primitives_stringFromCharCode(character);
+      t1._contents += t2;
+      return null;
+    },
+    addInterpolation$1(interpolation) {
+      var _0_4_isSet, _0_4, first, rest, t2, _this = this,
+        toAdd = interpolation.contents,
+        t1 = toAdd.length;
+      if (t1 === 0)
+        return;
+      _0_4_isSet = t1 >= 1;
+      if (_0_4_isSet) {
+        _0_4 = toAdd[0];
+        t1 = _0_4;
+        t1 = typeof t1 == "string";
+      } else {
+        _0_4 = null;
+        t1 = false;
+      }
+      if (t1) {
+        first = A._asString(_0_4_isSet ? _0_4 : toAdd[0]);
+        rest = B.JSArray_methods.sublist$1(toAdd, 1);
+        t1 = _this._interpolation_buffer0$_text;
+        t1._contents += first;
+        toAdd = rest;
+      }
+      _this._interpolation_buffer0$_flushText$0();
+      t1 = _this._interpolation_buffer0$_contents;
+      B.JSArray_methods.addAll$1(t1, toAdd);
+      if (typeof B.JSArray_methods.get$last(t1) == "string") {
+        t2 = _this._interpolation_buffer0$_text;
+        t1 = A.S(t1.pop());
+        t2._contents += t1;
+      }
+    },
+    _interpolation_buffer0$_flushText$0() {
+      var t1 = this._interpolation_buffer0$_text,
+        t2 = t1._contents;
+      if (t2.length === 0)
+        return;
+      this._interpolation_buffer0$_contents.push(t2.charCodeAt(0) == 0 ? t2 : t2);
+      t1._contents = "";
+    },
+    interpolation$1(span) {
+      var t1 = A.List_List$of(this._interpolation_buffer0$_contents, true, type$.Object),
+        t2 = this._interpolation_buffer0$_text._contents;
+      if (t2.length !== 0)
+        t1.push(t2.charCodeAt(0) == 0 ? t2 : t2);
+      return A.Interpolation$0(t1, span);
+    },
+    toString$0(_) {
+      var t1, t2, _i, t3, element;
+      for (t1 = this._interpolation_buffer0$_contents, t2 = t1.length, _i = 0, t3 = ""; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        element = t1[_i];
+        t3 = typeof element == "string" ? t3 + element : t3 + "#{" + A.S(element) + A.Primitives_stringFromCharCode(125);
+      }
+      t1 = t3 + this._interpolation_buffer0$_text.toString$0(0);
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    }
+  };
+  A.InterpolationMap0.prototype = {
+    mapException$1(error) {
+      var t3, t4, _this = this,
+        target = error.get$span(error),
+        source = _this.mapSpan$1(target),
+        startIndex = _this._interpolation_map$_indexInContents$1(target.get$start(target)),
+        endIndex = _this._interpolation_map$_indexInContents$1(target.get$end(target)),
+        t1 = _this._interpolation_map$_interpolation.contents,
+        t2 = error._span_exception$_message;
+      if (!A.SubListIterable$(t1, startIndex, null, A._arrayInstanceType(t1)._precomputed1).take$1(0, endIndex - startIndex + 1).any$1(0, new A.InterpolationMap_mapException_closure0()))
+        return new A.SourceSpanFormatException(error.get$source(), t2, source);
+      else {
+        t1 = type$.SourceSpan;
+        t3 = type$.String;
+        t4 = A.LinkedHashMap_LinkedHashMap$_literal([target, "error in interpolated output"], t1, t3);
+        return new A.MultiSourceSpanFormatException(error.get$source(), "", A.ConstantMap_ConstantMap$from(t4, t1, t3), t2, source);
+      }
+    },
+    mapSpan$1(target) {
+      var _0_10, t1, _0_2_isSet, _0_20, t2, start, end, _this = this, _null = null,
+        _0_1 = _this._interpolation_map$_mapLocation$1(target.get$start(target)),
+        _0_2 = _this._interpolation_map$_mapLocation$1(target.get$end(target));
+      $label0$0: {
+        _0_10 = _0_1;
+        t1 = type$.FileSpan;
+        _0_2_isSet = t1._is(_0_1);
+        if (_0_2_isSet) {
+          t1._as(_0_10);
+          _0_20 = _0_2;
+          t2 = t1._is(_0_2);
+          start = _0_10;
+          _0_1 = start;
+        } else {
+          start = _null;
+          _0_20 = start;
+          _0_1 = _0_10;
+          t2 = false;
+        }
+        if (t2) {
+          t1 = start.expand$1(0, t1._as(_0_2_isSet ? _0_20 : _0_2));
+          break $label0$0;
+        }
+        if (t1._is(_0_1)) {
+          if (_0_2_isSet)
+            t2 = _0_20;
+          else {
+            t2 = _0_2;
+            _0_20 = t2;
+            _0_2_isSet = true;
+          }
+          t2 = t2 instanceof A.FileLocation;
+          start = _0_1;
+        } else {
+          start = _null;
+          t2 = false;
+        }
+        if (t2) {
+          t1 = _0_2_isSet ? _0_20 : _0_2;
+          type$.FileLocation._as(t1);
+          t2 = _this._interpolation_map$_interpolation.span;
+          t1 = t2.get$file(t2).span$2(0, _this._interpolation_map$_expandInterpolationSpanLeft$1(start.get$start(start)), t1.offset);
+          break $label0$0;
+        }
+        if (_0_1 instanceof A.FileLocation) {
+          if (_0_2_isSet)
+            t2 = _0_20;
+          else {
+            t2 = _0_2;
+            _0_20 = t2;
+            _0_2_isSet = true;
+          }
+          t2 = t1._is(t2);
+          start = _0_1;
+        } else {
+          start = _null;
+          t2 = false;
+        }
+        if (t2) {
+          end = t1._as(_0_2_isSet ? _0_20 : _0_2);
+          t1 = _this._interpolation_map$_interpolation.span;
+          t1 = t1.get$file(t1).span$2(0, start.offset, _this._interpolation_map$_expandInterpolationSpanRight$1(end.get$end(end)));
+          break $label0$0;
+        }
+        if (_0_1 instanceof A.FileLocation) {
+          if (_0_2_isSet)
+            t1 = _0_20;
+          else {
+            t1 = _0_2;
+            _0_20 = t1;
+            _0_2_isSet = true;
+          }
+          t1 = t1 instanceof A.FileLocation;
+          start = _0_1;
+        } else {
+          start = _null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _0_2_isSet ? _0_20 : _0_2;
+          type$.FileLocation._as(t1);
+          t2 = _this._interpolation_map$_interpolation.span;
+          t1 = t2.get$file(t2).span$2(0, start.offset, t1.offset);
+          break $label0$0;
+        }
+        t1 = A.throwExpression("[BUG] Unreachable");
+      }
+      return t1;
+    },
+    _interpolation_map$_mapLocation$1(target) {
+      var t4, previousLocation, _this = this,
+        index = _this._interpolation_map$_indexInContents$1(target),
+        t1 = _this._interpolation_map$_interpolation,
+        t2 = t1.contents,
+        _0_0 = t2[index],
+        t3 = type$.Expression_2;
+      if (t3._is(_0_0))
+        return _0_0.get$span(_0_0);
+      t4 = index === 0;
+      t1 = t1.span;
+      if (t4)
+        previousLocation = t1.get$start(t1);
+      else {
+        t1 = t1.get$file(t1);
+        t2 = t3._as(t2[index - 1]);
+        t2 = t2.get$span(t2);
+        previousLocation = A.FileLocation$_(t1, _this._interpolation_map$_expandInterpolationSpanRight$1(t2.get$end(t2)));
+      }
+      t1 = t4 ? 0 : _this._interpolation_map$_targetLocations[index - 1].get$offset();
+      return A.FileLocation$_(previousLocation.file, previousLocation.offset + (target.offset - t1));
+    },
+    _interpolation_map$_indexInContents$1(target) {
+      var t1, t2, t3, i;
+      for (t1 = this._interpolation_map$_targetLocations, t2 = t1.length, t3 = target.offset, i = 0; i < t2; ++i)
+        if (t3 < t1[i].get$offset())
+          return i;
+      return this._interpolation_map$_interpolation.contents.length - 1;
+    },
+    _interpolation_map$_expandInterpolationSpanLeft$1(start) {
+      var i0, prev, char,
+        source = start.file._decodedChars,
+        i = start.offset - 1;
+      for (; i >= 0;) {
+        i0 = i - 1;
+        prev = source[i];
+        if (prev === 123) {
+          if (source[i0] === 35) {
+            i = i0;
+            break;
+          }
+          i = i0;
+        } else if (prev === 47) {
+          i = i0 - 1;
+          if (source[i0] === 42)
+            for (; true;) {
+              i0 = i - 1;
+              if (source[i] !== 42) {
+                i = i0;
+                continue;
+              }
+              i = i0;
+              do {
+                i0 = i - 1;
+                char = source[i];
+                if (char === 42) {
+                  i = i0;
+                  continue;
+                } else
+                  break;
+              } while (true);
+              if (char === 47) {
+                i = i0;
+                break;
+              }
+              i = i0;
+            }
+        } else
+          i = i0;
+      }
+      return i;
+    },
+    _interpolation_map$_expandInterpolationSpanRight$1(end) {
+      var t1, i0, next, second, t2, char,
+        source = end.file._decodedChars,
+        i = end.offset;
+      for (t1 = source.length; i < t1;) {
+        i0 = i + 1;
+        next = source[i];
+        if (next === 125) {
+          i = i0;
+          break;
+        }
+        if (next === 47) {
+          i = i0 + 1;
+          second = source[i0];
+          if (second === 47) {
+            while (true) {
+              i0 = i + 1;
+              t2 = source[i];
+              if (!!(t2 === 10 || t2 === 13 || t2 === 12))
+                break;
+              i = i0;
+            }
+            i = i0;
+          } else if (second === 42)
+            for (; true;) {
+              i0 = i + 1;
+              if (source[i] !== 42) {
+                i = i0;
+                continue;
+              }
+              i = i0;
+              do {
+                i0 = i + 1;
+                char = source[i];
+                if (char === 42) {
+                  i = i0;
+                  continue;
+                } else
+                  break;
+              } while (true);
+              if (char === 47) {
+                i = i0;
+                break;
+              }
+              i = i0;
+            }
+        } else
+          i = i0;
+      }
+      return i;
+    }
+  };
+  A.InterpolationMap_mapException_closure0.prototype = {
+    call$1($content) {
+      return type$.Expression_2._is($content);
+    },
+    $signature: 67
+  };
+  A._realCasePath_helper0.prototype = {
+    call$1(path) {
+      var dirname = $.$get$context().dirname$1(path);
+      if (dirname === path)
+        return path;
+      return $._realCaseCache0.putIfAbsent$2(path, new A._realCasePath_helper_closure0(this, dirname, path));
+    },
+    $signature: 5
+  };
+  A._realCasePath_helper_closure0.prototype = {
+    call$0() {
+      var matches, t1, _0_0, match, exception,
+        realDirname = this.helper.call$1(this.dirname),
+        t2 = this.path,
+        basename = A.ParsedPath_ParsedPath$parse(t2, $.$get$context().style).get$basename();
+      try {
+        matches = J.where$1$ax(A.listDir0(realDirname), new A._realCasePath_helper__closure0(basename)).toList$0(0);
+        t1 = null;
+        _0_0 = matches;
+        $label0$0: {
+          match = null;
+          if (J.get$length$asx(_0_0) === 1) {
+            match = J.$index$asx(_0_0, 0);
+            t1 = match;
+            break $label0$0;
+          }
+          t1 = A.join(realDirname, basename, null);
+          break $label0$0;
+        }
+        t1 = t1;
+        return t1;
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.FileSystemException0)
+          return t2;
+        else
+          throw exception;
+      }
+    },
+    $signature: 25
+  };
+  A._realCasePath_helper__closure0.prototype = {
+    call$1(realPath) {
+      return A.equalsIgnoreCase0(A.ParsedPath_ParsedPath$parse(realPath, $.$get$context().style).get$basename(), this.basename);
+    },
+    $signature: 4
+  };
+  A.FileSystemException0.prototype = {
+    toString$0(_) {
+      var t1 = $.$get$context();
+      return t1.prettyUri$1(t1.toUri$1(this.path)) + ": " + this.message;
+    },
+    get$message(receiver) {
+      return this.message;
+    }
+  };
+  A._readFile_closure0.prototype = {
+    call$0() {
+      return J.readFileSync$2$x(A.fs(), this.path, this.encoding);
+    },
+    $signature: 62
+  };
+  A.fileExists_closure0.prototype = {
+    call$0() {
+      var error, systemError, exception,
+        t1 = this.path;
+      if (!J.existsSync$1$x(A.fs(), t1))
+        return false;
+      try {
+        t1 = J.isFile$0$x(J.statSync$1$x(A.fs(), t1));
+        return t1;
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        systemError = type$.JsSystemError._as(error);
+        if (J.$eq$(J.get$code$x(systemError), "ENOENT"))
+          return false;
+        throw exception;
+      }
+    },
+    $signature: 30
+  };
+  A.dirExists_closure0.prototype = {
+    call$0() {
+      var error, systemError, exception,
+        t1 = this.path;
+      if (!J.existsSync$1$x(A.fs(), t1))
+        return false;
+      try {
+        t1 = J.isDirectory$0$x(J.statSync$1$x(A.fs(), t1));
+        return t1;
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        systemError = type$.JsSystemError._as(error);
+        if (J.$eq$(J.get$code$x(systemError), "ENOENT"))
+          return false;
+        throw exception;
+      }
+    },
+    $signature: 30
+  };
+  A.listDir_closure0.prototype = {
+    call$0() {
+      var t1 = this.path;
+      if (!this.recursive)
+        return J.map$1$1$ax(J.readdirSync$1$x(A.fs(), t1), new A.listDir__closure1(t1), type$.String).super$Iterable$where(0, new A.listDir__closure2());
+      else
+        return new A.listDir_closure_list0().call$1(t1);
+    },
+    $signature: 146
+  };
+  A.listDir__closure1.prototype = {
+    call$1(child) {
+      return A.join(this.path, A._asString(child), null);
+    },
+    $signature: 125
+  };
+  A.listDir__closure2.prototype = {
+    call$1(child) {
+      return !A.dirExists0(child);
+    },
+    $signature: 4
+  };
+  A.listDir_closure_list0.prototype = {
+    call$1($parent) {
+      return J.expand$1$1$ax(J.readdirSync$1$x(A.fs(), $parent), new A.listDir__list_closure0($parent, this), type$.String);
+    },
+    $signature: 147
+  };
+  A.listDir__list_closure0.prototype = {
+    call$1(child) {
+      var path = A.join(this.parent, A._asString(child), null);
+      return A.dirExists0(path) ? this.list.call$1(path) : A._setArrayType([path], type$.JSArray_String);
+    },
+    $signature: 148
+  };
+  A.main_closure.prototype = {
+    call$2(_, __) {
+    },
+    $signature: 470
+  };
+  A.main_closure0.prototype = {
+    call$2(_, __) {
+    },
+    $signature: 471
+  };
+  A.JSToDartLogger.prototype = {
+    internalWarn$4$deprecation$span$trace(message, deprecation, span, trace) {
+      var t2, t3, t4,
+        t1 = this._node,
+        _0_0 = t1 == null ? null : J.get$warn$x(t1);
+      if (_0_0 != null) {
+        t1 = span == null ? type$.nullable_SourceSpan._as(self.undefined) : span;
+        t2 = J.toString$0$(trace);
+        t3 = deprecation == null;
+        t4 = $.$get$deprecations();
+        _0_0.call$2(message, {deprecation: !t3, deprecationType: t4.$index(0, t3 ? null : deprecation.id), span: t1, stack: t2});
+      } else
+        this._withAscii$1(new A.JSToDartLogger_internalWarn_closure(this, message, span, trace, deprecation));
+    },
+    debug$2(_, message, span) {
+      var t1 = this._node,
+        _0_0 = t1 == null ? null : J.get$debug$x(t1);
+      if (_0_0 != null)
+        _0_0.call$2(message, {span: span});
+      else
+        this._withAscii$1(new A.JSToDartLogger_debug_closure(this, message, span));
+    },
+    _withAscii$1$1(callback) {
+      var t1,
+        wasAscii = $._glyphs === B.C_AsciiGlyphSet;
+      $._glyphs = this._ascii ? B.C_AsciiGlyphSet : B.C_UnicodeGlyphSet;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        $._glyphs = wasAscii ? B.C_AsciiGlyphSet : B.C_UnicodeGlyphSet;
+      }
+    },
+    _withAscii$1(callback) {
+      return this._withAscii$1$1(callback, type$.dynamic);
+    }
+  };
+  A.JSToDartLogger_internalWarn_closure.prototype = {
+    call$0() {
+      var _this = this;
+      _this.$this._fallback.warn$4$deprecation$span$trace(0, _this.message, _this.deprecation != null, _this.span, _this.trace);
+    },
+    $signature: 1
+  };
+  A.JSToDartLogger_debug_closure.prototype = {
+    call$0() {
+      return this.$this._fallback.debug$2(0, this.message, this.span);
+    },
+    $signature: 0
+  };
+  A.ModifiableCssKeyframeBlock0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssKeyframeBlock$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      return other instanceof A.ModifiableCssKeyframeBlock0 && B.C_ListEquality.equals$2(0, this.selector.value, other.selector.value);
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssKeyframeBlock$0(this.selector, this.span);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.KeyframeSelectorParser0.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.KeyframeSelectorParser_parse_closure0(this));
+    },
+    _keyframe_selector$_percentage$0() {
+      var $self, _0_0,
+        t1 = this.scanner,
+        t2 = t1.scanChar$1(43) ? "" + A.Primitives_stringFromCharCode(43) : "",
+        second = t1.peekChar$0();
+      if (!(second != null && second >= 48 && second <= 57) && second !== 46)
+        t1.error$1(0, "Expected number.");
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+      }
+      if (t1.peekChar$0() === 46) {
+        t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        while (true) {
+          $self = t1.peekChar$0();
+          if (!($self != null && $self >= 48 && $self <= 57))
+            break;
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        }
+      }
+      if (this.scanIdentChar$1(101)) {
+        t2 += A.Primitives_stringFromCharCode(101);
+        _0_0 = t1.peekChar$0();
+        if (43 === _0_0 || 45 === _0_0)
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          t1.error$1(0, "Expected digit.");
+        do {
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+          $self = t1.peekChar$0();
+        } while ($self != null && $self >= 48 && $self <= 57);
+      }
+      t1.expectChar$1(37);
+      t2 += A.Primitives_stringFromCharCode(37);
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    }
+  };
+  A.KeyframeSelectorParser_parse_closure0.prototype = {
+    call$0() {
+      var selectors = A._setArrayType([], type$.JSArray_String),
+        t1 = this.$this,
+        t2 = t1.scanner;
+      do {
+        t1.whitespace$0();
+        if (t1.lookingAtIdentifier$0())
+          if (t1.scanIdentifier$1("from"))
+            selectors.push("from");
+          else {
+            t1.expectIdentifier$2$name("to", '"to" or "from"');
+            selectors.push("to");
+          }
+        else
+          selectors.push(t1._keyframe_selector$_percentage$0());
+        t1.whitespace$0();
+      } while (t2.scanChar$1(44));
+      t2.expectDone$0();
+      return selectors;
+    },
+    $signature: 126
+  };
+  A.LazyFileSpan0.prototype = {
+    get$span(_) {
+      var t1 = this._lazy_file_span0$_span;
+      return t1 == null ? this._lazy_file_span0$_span = this._lazy_file_span0$_builder.call$0() : t1;
+    },
+    compareTo$1(_, other) {
+      return this.get$span(0).compareTo$1(0, other);
+    },
+    get$context(_) {
+      var t1 = this.get$span(0);
+      return t1.get$context(t1);
+    },
+    get$end(_) {
+      var t1 = this.get$span(0);
+      return t1.get$end(t1);
+    },
+    expand$1(_, other) {
+      return this.get$span(0).expand$1(0, other);
+    },
+    get$file(_) {
+      var t1 = this.get$span(0);
+      return t1.get$file(t1);
+    },
+    highlight$1$color(color) {
+      return this.get$span(0).highlight$1$color(color);
+    },
+    get$length(_) {
+      var t1 = this.get$span(0);
+      return t1.get$length(t1);
+    },
+    message$2$color(_, message, color) {
+      return this.get$span(0).message$2$color(0, message, color);
+    },
+    message$1(_, message) {
+      return this.message$2$color(0, message, null);
+    },
+    get$sourceUrl(_) {
+      var t1 = this.get$span(0);
+      return t1.get$sourceUrl(t1);
+    },
+    get$start(_) {
+      var t1 = this.get$span(0);
+      return t1.get$start(t1);
+    },
+    get$text() {
+      return this.get$span(0).get$text();
+    },
+    $isComparable: 1,
+    $isFileSpan: 1,
+    $isSourceSpan: 1,
+    $isSourceSpanWithContext: 1
+  };
+  A.render_closure.prototype = {
+    call$0() {
+      var error, exception;
+      try {
+        this.callback.call$2(null, A.renderSync(this.options));
+      } catch (exception) {
+        error = A.unwrapException(exception);
+        this.callback.call$2(error, null);
+      }
+      return null;
+    },
+    $signature: 1
+  };
+  A.render_closure0.prototype = {
+    call$1(result) {
+      this.callback.call$2(null, result);
+    },
+    $signature: 472
+  };
+  A.render_closure1.prototype = {
+    call$2(error, stackTrace) {
+      var t2, t3, _null = null,
+        t1 = this.callback;
+      if (error instanceof A.SassException0)
+        t1.call$2(A._wrapException(error, stackTrace), _null);
+      else {
+        t2 = J.toString$0$(error);
+        t3 = A.getTrace0(error);
+        t1.call$2(A._newRenderError(t2, t3 == null ? stackTrace : t3, _null, _null, _null, 3), _null);
+      }
+    },
+    $signature: 53
+  };
+  A._parseFunctions_closure.prototype = {
+    call$2(signature, callback) {
+      var _0_0, _this = this, t1 = {},
+        t2 = _this.options,
+        context = {options: A._contextOptions(t2, _this.start)};
+      J.set$context$x(J.get$options$x(context), context);
+      _0_0 = J.get$fiber$x(t2);
+      t1.fiber = null;
+      if (_0_0 != null) {
+        t1.fiber = _0_0;
+        _this.result.push(A.Callable_Callable$fromSignature(B.JSString_methods.trimLeft$0(signature), new A._parseFunctions__closure(t1, callback, context), false));
+      } else {
+        t1 = _this.result;
+        if (!_this.asynch)
+          t1.push(A.Callable_Callable$fromSignature(B.JSString_methods.trimLeft$0(signature), new A._parseFunctions__closure0(callback, context), false));
+        else
+          t1.push(A.AsyncCallable_AsyncCallable$fromSignature(B.JSString_methods.trimLeft$0(signature), new A._parseFunctions__closure1(callback, context), false));
+      }
+    },
+    $signature: 122
+  };
+  A._parseFunctions__closure.prototype = {
+    call$1($arguments) {
+      var result,
+        t1 = this._box_0,
+        currentFiber = J.get$current$x(t1.fiber),
+        t2 = type$.Object;
+      t2 = A.List_List$of(J.map$1$1$ax($arguments, A.value0__wrapValue$closure(), t2), true, t2);
+      t2.push(A.allowInterop(new A._parseFunctions___closure2(currentFiber)));
+      result = A.wrapJSExceptions(new A._parseFunctions___closure3(this.callback, this.context, t2));
+      return A.unwrapValue(A._asBool($.$get$_isUndefined().call$1(result)) ? A.runZoned(new A._parseFunctions___closure4(t1), null, type$.nullable_Object) : result);
+    },
+    $signature: 3
+  };
+  A._parseFunctions___closure2.prototype = {
+    call$1(result) {
+      A.scheduleMicrotask(new A._parseFunctions____closure(this.currentFiber, result));
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    "call*": "call$1",
+    $requiredArgCount: 0,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 104
+  };
+  A._parseFunctions____closure.prototype = {
+    call$0() {
+      return J.run$1$x(this.currentFiber, this.result);
+    },
+    $signature: 0
+  };
+  A._parseFunctions___closure3.prototype = {
+    call$0() {
+      return J.apply$2$x(type$.JSFunction._as(this.callback), this.context, this.jsArguments);
+    },
+    $signature: 31
+  };
+  A._parseFunctions___closure4.prototype = {
+    call$0() {
+      return J.yield$0$x(this._box_0.fiber);
+    },
+    $signature: 80
+  };
+  A._parseFunctions__closure0.prototype = {
+    call$1($arguments) {
+      return A.unwrapValue(A.wrapJSExceptions(new A._parseFunctions___closure1(this.callback, this.context, $arguments)));
+    },
+    $signature: 3
+  };
+  A._parseFunctions___closure1.prototype = {
+    call$0() {
+      var t1 = type$.JSFunction._as(this.callback),
+        t2 = J.map$1$1$ax(this.$arguments, A.value0__wrapValue$closure(), type$.Object);
+      return J.apply$2$x(t1, this.context, A.List_List$of(t2, true, t2.$ti._eval$1("ListIterable.E")));
+    },
+    $signature: 31
+  };
+  A._parseFunctions__closure1.prototype = {
+    call$1($arguments) {
+      return this.$call$body$_parseFunctions__closure($arguments);
+    },
+    $call$body$_parseFunctions__closure($arguments) {
+      var $async$goto = 0,
+        $async$completer = A._makeAsyncAwaitCompleter(type$.Value_2),
+        $async$returnValue, $async$self = this, result, t1, t2, $async$temp1;
+      var $async$call$1 = A._wrapJsFunctionForAsync(function($async$errorCode, $async$result) {
+        if ($async$errorCode === 1)
+          return A._asyncRethrow($async$result, $async$completer);
+        while (true)
+          switch ($async$goto) {
+            case 0:
+              // Function start
+              t1 = new A._Future($.Zone__current, type$._Future_nullable_Object);
+              t2 = type$.Object;
+              t2 = A.List_List$of(J.map$1$1$ax($arguments, A.value0__wrapValue$closure(), t2), true, t2);
+              t2.push(A.allowInterop(new A._parseFunctions___closure(new A._AsyncCompleter(t1, type$._AsyncCompleter_nullable_Object))));
+              result = A.wrapJSExceptions(new A._parseFunctions___closure0($async$self.callback, $async$self.context, t2));
+              $async$temp1 = A;
+              $async$goto = A._asBool($.$get$_isUndefined().call$1(result)) ? 3 : 5;
+              break;
+            case 3:
+              // then
+              $async$goto = 6;
+              return A._asyncAwait(t1, $async$call$1);
+            case 6:
+              // returning from await.
+              // goto join
+              $async$goto = 4;
+              break;
+            case 5:
+              // else
+              $async$result = result;
+            case 4:
+              // join
+              $async$returnValue = $async$temp1.unwrapValue($async$result);
+              // goto return
+              $async$goto = 1;
+              break;
+            case 1:
+              // return
+              return A._asyncReturn($async$returnValue, $async$completer);
+          }
+      });
+      return A._asyncStartSync($async$call$1, $async$completer);
+    },
+    $signature: 89
+  };
+  A._parseFunctions___closure.prototype = {
+    call$1(result) {
+      return this.completer.complete$1(result);
+    },
+    call$0() {
+      return this.call$1(null);
+    },
+    "call*": "call$1",
+    $requiredArgCount: 0,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 259
+  };
+  A._parseFunctions___closure0.prototype = {
+    call$0() {
+      return J.apply$2$x(type$.JSFunction._as(this.callback), this.context, this.jsArguments);
+    },
+    $signature: 31
+  };
+  A._parseImporter_closure.prototype = {
+    call$1(importer) {
+      return type$.JSFunction._as(A.allowInteropCaptureThis(new A._parseImporter__closure(this._box_0, importer)));
+    },
+    $signature: 473
+  };
+  A._parseImporter__closure.prototype = {
+    call$4(thisArg, url, previous, _) {
+      var t1 = this._box_0,
+        result = J.apply$2$x(this.importer, thisArg, A._setArrayType([url, previous, A.allowInterop(new A._parseImporter___closure(J.get$current$x(t1.fiber)))], type$.JSArray_Object));
+      if (A._asBool($.$get$_isUndefined().call$1(result)))
+        return A.runZoned(new A._parseImporter___closure0(t1), null, type$.Object);
+      return result;
+    },
+    call$3(thisArg, url, previous) {
+      return this.call$4(thisArg, url, previous, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 474
+  };
+  A._parseImporter___closure.prototype = {
+    call$1(result) {
+      A.scheduleMicrotask(new A._parseImporter____closure(this.currentFiber, result));
+    },
+    $signature: 475
+  };
+  A._parseImporter____closure.prototype = {
+    call$0() {
+      return J.run$1$x(this.currentFiber, this.result);
+    },
+    $signature: 0
+  };
+  A._parseImporter___closure0.prototype = {
+    call$0() {
+      return J.yield$0$x(this._box_0.fiber);
+    },
+    $signature: 80
+  };
+  A.LimitedMapView0.prototype = {
+    get$keys(_) {
+      return this._limited_map_view0$_keys;
+    },
+    get$length(_) {
+      return this._limited_map_view0$_keys._collection$_length;
+    },
+    get$isEmpty(_) {
+      return this._limited_map_view0$_keys._collection$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._limited_map_view0$_keys._collection$_length !== 0;
+    },
+    $index(_, key) {
+      return this._limited_map_view0$_keys.contains$1(0, key) ? this._limited_map_view0$_map.$index(0, key) : null;
+    },
+    containsKey$1(key) {
+      return this._limited_map_view0$_keys.contains$1(0, key);
+    },
+    remove$1(_, key) {
+      return this._limited_map_view0$_keys.contains$1(0, key) ? this._limited_map_view0$_map.remove$1(0, key) : null;
+    }
+  };
+  A.ListExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitListExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, t3, t4, t5, _this = this,
+        t1 = _this.hasBrackets;
+      if (t1)
+        t2 = "" + A.Primitives_stringFromCharCode(91);
+      else {
+        t2 = _this.contents.length;
+        if (t2 !== 0)
+          t2 = t2 === 1 && _this.separator === B.ListSeparator_ECn0;
+        else
+          t2 = true;
+        t2 = t2 ? "" + A.Primitives_stringFromCharCode(40) : "";
+      }
+      t3 = _this.contents;
+      t4 = _this.separator === B.ListSeparator_ECn0;
+      t5 = t4 ? ", " : " ";
+      t5 = t2 + new A.MappedListIterable(t3, new A.ListExpression_toString_closure0(_this), A._arrayInstanceType(t3)._eval$1("MappedListIterable<1,String>")).join$1(0, t5);
+      if (t1)
+        t1 = t5 + A.Primitives_stringFromCharCode(93);
+      else {
+        t1 = t3.length;
+        if (t1 === 0)
+          t1 = t5 + A.Primitives_stringFromCharCode(41);
+        else
+          t1 = t1 === 1 && t4 ? t5 + ",)" : t5;
+      }
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    _list3$_elementNeedsParens$1(expression) {
+      var childSeparator, t1, _0_13;
+      $label0$0: {
+        if (expression instanceof A.ListExpression0 && expression.contents.length >= 2 && !expression.hasBrackets) {
+          childSeparator = expression.separator;
+          t1 = this.separator === B.ListSeparator_ECn0 ? childSeparator === B.ListSeparator_ECn0 : childSeparator !== B.ListSeparator_undecided_null_undecided0;
+          break $label0$0;
+        }
+        if (expression instanceof A.UnaryOperationExpression0) {
+          _0_13 = expression.operator;
+          if (B.UnaryOperator_cLp0 !== _0_13)
+            t1 = B.UnaryOperator_AiQ0 === _0_13;
+          else
+            t1 = true;
+        } else
+          t1 = false;
+        if (t1) {
+          t1 = this.separator === B.ListSeparator_nbm0;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ListExpression_toString_closure0.prototype = {
+    call$1(element) {
+      return this.$this._list3$_elementNeedsParens$1(element) ? "(" + element.toString$0(0) + ")" : element.toString$0(0);
+    },
+    $signature: 135
+  };
+  A._length_closure2.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.$index$asx($arguments, 0).get$asList().length, null);
+    },
+    $signature: 12
+  };
+  A._nth_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        list = t1.$index($arguments, 0),
+        index = t1.$index($arguments, 1);
+      return list.get$asList()[list.sassIndexToListIndex$2(index, "n")];
+    },
+    $signature: 3
+  };
+  A._setNth_closure0.prototype = {
+    call$1($arguments) {
+      var newList,
+        t1 = J.getInterceptor$asx($arguments),
+        list = t1.$index($arguments, 0),
+        index = t1.$index($arguments, 1),
+        value = t1.$index($arguments, 2);
+      t1 = list.get$asList();
+      newList = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      newList[list.sassIndexToListIndex$2(index, "n")] = value;
+      return list.withListContents$1(newList);
+    },
+    $signature: 22
+  };
+  A._join_closure0.prototype = {
+    call$1($arguments) {
+      var _0_1, _0_4, _0_3, t2, _0_40, separator, bracketed, _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        list1 = t1.$index($arguments, 0),
+        list2 = t1.$index($arguments, 1),
+        separatorParam = t1.$index($arguments, 2).assertString$1("separator"),
+        bracketedParam = t1.$index($arguments, 3),
+        _1_0 = separatorParam._string0$_text;
+      $label1$1: {
+        if ("auto" === _1_0) {
+          _0_1 = list1.get$separator(list1);
+          _0_4 = list2.get$separator(list2);
+          $label0$0: {
+            _0_3 = B.ListSeparator_undecided_null_undecided0 === _0_1;
+            t1 = _0_3;
+            if (t1) {
+              t2 = B.ListSeparator_undecided_null_undecided0 === _0_4;
+              _0_40 = _0_4;
+            } else {
+              _0_40 = _null;
+              t2 = false;
+            }
+            if (t2) {
+              t1 = B.ListSeparator_nbm0;
+              break $label0$0;
+            }
+            if (_0_3)
+              separator = t1 ? _0_40 : _0_4;
+            else
+              separator = _null;
+            if (!_0_3)
+              separator = _0_1;
+            t1 = separator;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        if ("space" === _1_0) {
+          t1 = B.ListSeparator_nbm0;
+          break $label1$1;
+        }
+        if ("comma" === _1_0) {
+          t1 = B.ListSeparator_ECn0;
+          break $label1$1;
+        }
+        if ("slash" === _1_0) {
+          t1 = B.ListSeparator_cQA0;
+          break $label1$1;
+        }
+        t1 = A.throwExpression(A.SassScriptException$0(string$.x24separ, _null));
+      }
+      bracketed = bracketedParam instanceof A.SassString0 && bracketedParam._string0$_text === "auto" ? list1.get$hasBrackets() : bracketedParam.get$isTruthy();
+      t2 = A.List_List$of(list1.get$asList(), true, type$.Value_2);
+      B.JSArray_methods.addAll$1(t2, list2.get$asList());
+      return A.SassList$0(t2, t1, bracketed);
+    },
+    $signature: 22
+  };
+  A._append_closure2.prototype = {
+    call$1($arguments) {
+      var t2,
+        t1 = J.getInterceptor$asx($arguments),
+        list = t1.$index($arguments, 0),
+        value = t1.$index($arguments, 1),
+        _0_0 = t1.$index($arguments, 2).assertString$1("separator")._string0$_text;
+      $label0$0: {
+        if ("auto" === _0_0) {
+          t1 = list.get$separator(list) === B.ListSeparator_undecided_null_undecided0 ? B.ListSeparator_nbm0 : list.get$separator(list);
+          break $label0$0;
+        }
+        if ("space" === _0_0) {
+          t1 = B.ListSeparator_nbm0;
+          break $label0$0;
+        }
+        if ("comma" === _0_0) {
+          t1 = B.ListSeparator_ECn0;
+          break $label0$0;
+        }
+        if ("slash" === _0_0) {
+          t1 = B.ListSeparator_cQA0;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.SassScriptException$0(string$.x24separ, null));
+      }
+      t2 = A.List_List$of(list.get$asList(), true, type$.Value_2);
+      t2.push(value);
+      return list.withListContents$2$separator(t2, t1);
+    },
+    $signature: 22
+  };
+  A._zip_closure0.prototype = {
+    call$1($arguments) {
+      var results, result, _box_0 = {},
+        t1 = J.$index$asx($arguments, 0).get$asList(),
+        t2 = A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,List<Value0>>"),
+        lists = A.List_List$of(new A.MappedListIterable(t1, new A._zip__closure2(), t2), true, t2._eval$1("ListIterable.E"));
+      if (lists.length === 0)
+        return B.SassList_bdS1;
+      _box_0.i = 0;
+      results = A._setArrayType([], type$.JSArray_SassList_2);
+      for (t1 = A._arrayInstanceType(lists)._eval$1("MappedListIterable<1,Value0>"), t2 = type$.Value_2; B.JSArray_methods.every$1(lists, new A._zip__closure3(_box_0));) {
+        result = A.List_List$from(new A.MappedListIterable(lists, new A._zip__closure4(_box_0), t1), false, t2);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        results.push(new A.SassList0(result, B.ListSeparator_nbm0, false));
+        ++_box_0.i;
+      }
+      return A.SassList$0(results, B.ListSeparator_ECn0, false);
+    },
+    $signature: 22
+  };
+  A._zip__closure2.prototype = {
+    call$1(list) {
+      return list.get$asList();
+    },
+    $signature: 477
+  };
+  A._zip__closure3.prototype = {
+    call$1(list) {
+      return this._box_0.i !== J.get$length$asx(list);
+    },
+    $signature: 478
+  };
+  A._zip__closure4.prototype = {
+    call$1(list) {
+      return J.$index$asx(list, this._box_0.i);
+    },
+    $signature: 3
+  };
+  A._index_closure2.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        index = B.JSArray_methods.indexOf$1(t1.$index($arguments, 0).get$asList(), t1.$index($arguments, 1));
+      return index === -1 ? B.C__SassNull0 : A.SassNumber_SassNumber0(index + 1, null);
+    },
+    $signature: 3
+  };
+  A._separator_closure0.prototype = {
+    call$1($arguments) {
+      var t1,
+        _0_0 = J.get$separator$x(J.$index$asx($arguments, 0));
+      $label0$0: {
+        if (B.ListSeparator_ECn0 === _0_0) {
+          t1 = new A.SassString0("comma", false);
+          break $label0$0;
+        }
+        if (B.ListSeparator_cQA0 === _0_0) {
+          t1 = new A.SassString0("slash", false);
+          break $label0$0;
+        }
+        t1 = new A.SassString0("space", false);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 19
+  };
+  A._isBracketed_closure0.prototype = {
+    call$1($arguments) {
+      return J.$index$asx($arguments, 0).get$hasBrackets() ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._slash_closure0.prototype = {
+    call$1($arguments) {
+      var list = J.$index$asx($arguments, 0).get$asList();
+      if (list.length < 2)
+        throw A.wrapException(A.SassScriptException$0("At least two elements are required.", null));
+      return A.SassList$0(list, B.ListSeparator_cQA0, false);
+    },
+    $signature: 22
+  };
+  A.SelectorList0.prototype = {
+    get$asSassList() {
+      var t1 = this.components;
+      return A.SassList$0(new A.MappedListIterable(t1, new A.SelectorList_asSassList_closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value0>")), B.ListSeparator_ECn0, false);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitSelectorList$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unify$1(other) {
+      var t3, t4, t5, t6, _i, complex1, _i0, t7,
+        t1 = type$.JSArray_ComplexSelector_2,
+        t2 = A._setArrayType([], t1);
+      for (t3 = this.components, t4 = t3.length, t5 = other.components, t6 = t5.length, _i = 0; _i < t4; ++_i) {
+        complex1 = t3[_i];
+        for (_i0 = 0; _i0 < t6; ++_i0) {
+          t7 = A.unifyComplex0(A._setArrayType([complex1, t5[_i0]], t1), complex1.span);
+          if (t7 != null)
+            B.JSArray_methods.addAll$1(t2, t7);
+        }
+      }
+      return t2.length === 0 ? null : A.SelectorList$0(t2, this.span);
+    },
+    nestWithin$3$implicitParent$preserveParentSelectors($parent, implicitParent, preserveParentSelectors) {
+      var parentSelector, t1, _this = this;
+      if ($parent == null) {
+        if (preserveParentSelectors)
+          return _this;
+        parentSelector = B.C__ParentSelectorVisitor0.visitSelectorList$1(_this);
+        if (parentSelector == null)
+          return _this;
+        throw A.wrapException(A.SassException$0(string$.Top_les, parentSelector.span, null));
+      }
+      t1 = _this.components;
+      return A.SelectorList$0(A.flattenVertically0(new A.MappedListIterable(t1, new A.SelectorList_nestWithin_closure0(_this, preserveParentSelectors, implicitParent, $parent), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Iterable<ComplexSelector0>>")), type$.ComplexSelector_2), _this.span);
+    },
+    nestWithin$1($parent) {
+      return this.nestWithin$3$implicitParent$preserveParentSelectors($parent, true, false);
+    },
+    nestWithin$2$implicitParent($parent, implicitParent) {
+      return this.nestWithin$3$implicitParent$preserveParentSelectors($parent, implicitParent, false);
+    },
+    _list2$_nestWithinCompound$2(component, $parent) {
+      var resolvedSimples, parentSelector, error, stackTrace, t2, resolvedSimples0, exception,
+        t1 = component.selector,
+        simples = t1.components,
+        containsSelectorPseudo = J.any$1$ax(simples, new A.SelectorList__nestWithinCompound_closure2());
+      if (!containsSelectorPseudo && !(J.get$first$ax(simples) instanceof A.ParentSelector0))
+        return null;
+      if (containsSelectorPseudo) {
+        t2 = simples;
+        resolvedSimples0 = new A.MappedListIterable(t2, new A.SelectorList__nestWithinCompound_closure3($parent), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,SimpleSelector0>"));
+      } else
+        resolvedSimples0 = simples;
+      resolvedSimples = resolvedSimples0;
+      parentSelector = J.get$first$ax(simples);
+      try {
+        if (!(parentSelector instanceof A.ParentSelector0)) {
+          t2 = component.span;
+          t2 = A._setArrayType([A.ComplexSelector$0(B.List_empty14, A._setArrayType([new A.ComplexSelectorComponent0(A.CompoundSelector$0(resolvedSimples, t1.span), A.List_List$unmodifiable(component.combinators, type$.CssValue_Combinator_2), t2)], type$.JSArray_ComplexSelectorComponent_2), t2, false)], type$.JSArray_ComplexSelector_2);
+          return t2;
+        } else if (J.get$length$asx(simples) === 1 && parentSelector.suffix == null) {
+          t1 = $parent.withAdditionalCombinators$1(component.combinators);
+          return t1.components;
+        }
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace0(error.withAdditionalSpan$2(parentSelector.span, "parent selector"), error, stackTrace);
+        } else
+          throw exception;
+      }
+      t1 = $parent.components;
+      return new A.MappedListIterable(t1, new A.SelectorList__nestWithinCompound_closure4(parentSelector, resolvedSimples, component), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector0>"));
+    },
+    isSuperselector$1(other) {
+      return A.listIsSuperselector0(this.components, other.components);
+    },
+    withAdditionalCombinators$1(combinators) {
+      var t1;
+      if (combinators.length === 0)
+        t1 = this;
+      else {
+        t1 = this.components;
+        t1 = A.SelectorList$0(new A.MappedListIterable(t1, new A.SelectorList_withAdditionalCombinators_closure0(combinators), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector0>")), this.span);
+      }
+      return t1;
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this.components);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SelectorList0 && B.C_ListEquality.equals$2(0, this.components, other.components);
+    }
+  };
+  A.SelectorList_asSassList_closure0.prototype = {
+    call$1(complex) {
+      var t3, t4, _i, component, t5, visitor, t6, t7, _i0,
+        t1 = type$.JSArray_Value_2,
+        t2 = A._setArrayType([], t1);
+      for (t3 = complex.leadingCombinators, t4 = t3.length, _i = 0; _i < t4; ++_i)
+        t2.push(new A.SassString0(J.toString$0$(t3[_i].value), false));
+      for (t3 = complex.components, t4 = t3.length, _i = 0; _i < t4; ++_i) {
+        component = t3[_i];
+        t5 = component.selector;
+        visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+        t5.accept$1(visitor);
+        t5 = A._setArrayType([new A.SassString0(visitor._serialize0$_buffer.toString$0(0), false)], t1);
+        for (t6 = component.combinators, t7 = t6.length, _i0 = 0; _i0 < t7; ++_i0)
+          t5.push(new A.SassString0(J.toString$0$(t6[_i0].value), false));
+        B.JSArray_methods.addAll$1(t2, t5);
+      }
+      return A.SassList$0(t2, B.ListSeparator_nbm0, false);
+    },
+    $signature: 479
+  };
+  A.SelectorList_nestWithin_closure0.prototype = {
+    call$1(complex) {
+      var t1, newComplexes, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, _i, component, resolved, i, t12, t13, t14, _i0, newComplex, t15, _this = this;
+      if (_this.preserveParentSelectors || complex.accept$1(B.C__ParentSelectorVisitor0) == null) {
+        if (!_this.implicitParent)
+          return A._setArrayType([complex], type$.JSArray_ComplexSelector_2);
+        t1 = _this.parent.components;
+        return new A.MappedListIterable(t1, new A.SelectorList_nestWithin__closure1(complex), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector0>"));
+      }
+      t1 = type$.JSArray_ComplexSelector_2;
+      newComplexes = A._setArrayType([], t1);
+      for (t2 = complex.components, t3 = t2.length, t4 = _this.$this, t5 = _this.parent, t6 = type$.ComplexSelector_2, t7 = complex.leadingCombinators, t8 = t7.length === 0, t9 = complex.span, t10 = type$.ComplexSelectorComponent_2, t11 = type$.JSArray_ComplexSelectorComponent_2, _i = 0; _i < t3; ++_i) {
+        component = t2[_i];
+        resolved = t4._list2$_nestWithinCompound$2(component, t5);
+        if (resolved == null)
+          if (newComplexes.length === 0)
+            newComplexes.push(A.ComplexSelector$0(t7, A._setArrayType([component], t11), t9, false));
+          else
+            for (i = 0; i < newComplexes.length; ++i) {
+              t12 = newComplexes[i];
+              t13 = t12.leadingCombinators;
+              t14 = A.List_List$of(t12.components, true, t10);
+              t14.push(component);
+              t12 = t12.lineBreak;
+              newComplexes[i] = A.ComplexSelector$0(t13, t14, t9, t12);
+            }
+        else if (newComplexes.length === 0)
+          B.JSArray_methods.addAll$1(newComplexes, t8 ? resolved : J.map$1$1$ax(resolved, new A.SelectorList_nestWithin__closure2(complex), t6));
+        else {
+          t12 = A._setArrayType([], t1);
+          for (t13 = newComplexes.length, t14 = J.getInterceptor$ax(resolved), _i0 = 0; _i0 < newComplexes.length; newComplexes.length === t13 || (0, A.throwConcurrentModificationError)(newComplexes), ++_i0) {
+            newComplex = newComplexes[_i0];
+            for (t15 = t14.get$iterator(resolved); t15.moveNext$0();)
+              t12.push(newComplex.concatenate$2(t15.get$current(t15), newComplex.span));
+          }
+          newComplexes = t12;
+        }
+      }
+      return newComplexes;
+    },
+    $signature: 480
+  };
+  A.SelectorList_nestWithin__closure1.prototype = {
+    call$1(parentComplex) {
+      var t1 = this.complex;
+      return parentComplex.concatenate$2(t1, t1.span);
+    },
+    $signature: 56
+  };
+  A.SelectorList_nestWithin__closure2.prototype = {
+    call$1(resolvedComplex) {
+      var t1 = resolvedComplex.leadingCombinators,
+        t2 = this.complex,
+        t3 = t2.leadingCombinators;
+      if (t1.length === 0)
+        t1 = t3;
+      else {
+        t3 = A.List_List$of(t3, true, type$.CssValue_Combinator_2);
+        B.JSArray_methods.addAll$1(t3, t1);
+        t1 = t3;
+      }
+      return A.ComplexSelector$0(t1, resolvedComplex.components, t2.span, resolvedComplex.lineBreak);
+    },
+    $signature: 56
+  };
+  A.SelectorList__nestWithinCompound_closure2.prototype = {
+    call$1(simple) {
+      var selector;
+      if (!(simple instanceof A.PseudoSelector0))
+        return false;
+      selector = simple.selector;
+      return selector != null && selector.accept$1(B.C__ParentSelectorVisitor0) != null;
+    },
+    $signature: 15
+  };
+  A.SelectorList__nestWithinCompound_closure3.prototype = {
+    call$1(simple) {
+      var _0_2, selector, t1;
+      $label0$0: {
+        if (simple instanceof A.PseudoSelector0) {
+          _0_2 = simple.selector;
+          if (_0_2 != null) {
+            selector = _0_2 == null ? type$.SelectorList_2._as(_0_2) : _0_2;
+            t1 = selector.accept$1(B.C__ParentSelectorVisitor0) != null;
+          } else {
+            selector = null;
+            t1 = false;
+          }
+        } else {
+          selector = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = simple.withSelector$1(selector.nestWithin$2$implicitParent(this.parent, false));
+          break $label0$0;
+        }
+        t1 = simple;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 481
+  };
+  A.SelectorList__nestWithinCompound_closure4.prototype = {
+    call$1(complex) {
+      var lastComponent, suffix, lastSimples, t1, t2, last, t3, error, stackTrace, t4, t5, t6, t7, exception, _this = this;
+      try {
+        t4 = complex.components;
+        lastComponent = B.JSArray_methods.get$last(t4);
+        if (lastComponent.combinators.length !== 0) {
+          t1 = A.MultiSpanSassException$0('Selector "' + complex.toString$0(0) + string$.x22x20can_, A.SpanExtensions_trimRight0(lastComponent.span), "outer selector", A.LinkedHashMap_LinkedHashMap$_literal([_this.parentSelector.span, "parent selector"], type$.FileSpan, type$.String), null);
+          throw A.wrapException(t1);
+        }
+        suffix = _this.parentSelector.suffix;
+        lastSimples = lastComponent.selector.components;
+        t5 = type$.SimpleSelector_2;
+        t6 = _this.resolvedSimples;
+        t7 = J.getInterceptor$ax(t6);
+        if (suffix == null) {
+          t1 = A.List_List$of(lastSimples, true, t5);
+          J.addAll$1$ax(t1, t7.skip$1(t6, 1));
+          t1 = t1;
+        } else {
+          t2 = A.List_List$of(A.IterableExtension_get_exceptLast0(lastSimples), true, t5);
+          J.add$1$ax(t2, J.get$last$ax(lastSimples).addSuffix$1(suffix));
+          J.addAll$1$ax(t2, t7.skip$1(t6, 1));
+          t1 = t2;
+        }
+        t2 = _this.component;
+        last = A.CompoundSelector$0(t1, t2.selector.span);
+        t3 = A.List_List$of(A.IterableExtension_get_exceptLast0(t4), true, type$.ComplexSelectorComponent_2);
+        t4 = t2.span;
+        J.add$1$ax(t3, new A.ComplexSelectorComponent0(last, A.List_List$unmodifiable(t2.combinators, type$.CssValue_Combinator_2), t4));
+        t4 = A.ComplexSelector$0(complex.leadingCombinators, t3, t4, complex.lineBreak);
+        return t4;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (t1 instanceof A.SassException0) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          A.throwWithTrace0(error.withAdditionalSpan$2(_this.parentSelector.span, "parent selector"), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    $signature: 56
+  };
+  A.SelectorList_withAdditionalCombinators_closure0.prototype = {
+    call$1(complex) {
+      return complex.withAdditionalCombinators$1(this.combinators);
+    },
+    $signature: 56
+  };
+  A._ParentSelectorVisitor0.prototype = {
+    visitParentSelector$1(selector) {
+      return selector;
+    }
+  };
+  A.__ParentSelectorVisitor_Object_SelectorSearchVisitor0.prototype = {};
+  A.listClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassList", new A.listClass__closure()));
+      J.get$$prototype$x(jsClass).get = A.allowInteropCaptureThisNamed("get", new A.listClass__closure0());
+      A.JSClassExtension_injectSuperclass(t1._as(B.SassList_k8F.constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.listClass__closure.prototype = {
+    call$3($self, contentsOrOptions, options) {
+      var contents, t1, t2;
+      if (self.immutable.isList(contentsOrOptions))
+        contents = J.cast$1$0$ax(J.toArray$0$x(type$.ImmutableList._as(contentsOrOptions)), type$.Value_2);
+      else if (type$.List_dynamic._is(contentsOrOptions))
+        contents = J.cast$1$0$ax(contentsOrOptions, type$.Value_2);
+      else {
+        contents = A._setArrayType([], type$.JSArray_Value_2);
+        type$.nullable__ConstructorOptions._as(contentsOrOptions);
+        options = contentsOrOptions;
+      }
+      t1 = options == null;
+      if (!t1) {
+        t2 = J.get$separator$x(options);
+        t2 = A._asBool($.$get$_isUndefined().call$1(t2));
+      } else
+        t2 = true;
+      t2 = t2 ? B.ListSeparator_ECn0 : A.jsToDartSeparator(J.get$separator$x(options));
+      t1 = t1 ? null : J.get$brackets$x(options);
+      return A.SassList$0(contents, t2, t1 == null ? false : t1);
+    },
+    call$1($self) {
+      return this.call$3($self, null, null);
+    },
+    call$2($self, contentsOrOptions) {
+      return this.call$3($self, contentsOrOptions, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 482
+  };
+  A.listClass__closure0.prototype = {
+    call$2($self, indexFloat) {
+      var index = B.JSNumber_methods.floor$0(indexFloat);
+      if (index < 0)
+        index = $self.get$asList().length + index;
+      if (index < 0 || index >= $self.get$asList().length)
+        return self.undefined;
+      return $self.get$asList()[index];
+    },
+    $signature: 244
+  };
+  A._ConstructorOptions.prototype = {};
+  A._NodeSassList.prototype = {};
+  A.legacyListClass_closure.prototype = {
+    call$4(thisArg, $length, commaSeparator, dartValue) {
+      var t1;
+      if (dartValue == null) {
+        $length.toString;
+        t1 = A.Iterable_Iterable$generate($length, new A.legacyListClass__closure(), type$.Value_2);
+        t1 = A.SassList$0(t1, commaSeparator !== false ? B.ListSeparator_ECn0 : B.ListSeparator_nbm0, false);
+      } else
+        t1 = dartValue;
+      J.set$dartValue$x(thisArg, t1);
+    },
+    call$2(thisArg, $length) {
+      return this.call$4(thisArg, $length, null, null);
+    },
+    call$3(thisArg, $length, commaSeparator) {
+      return this.call$4(thisArg, $length, commaSeparator, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 484
+  };
+  A.legacyListClass__closure.prototype = {
+    call$1(_) {
+      return B.C__SassNull0;
+    },
+    $signature: 239
+  };
+  A.legacyListClass_closure0.prototype = {
+    call$2(thisArg, index) {
+      return A.wrapValue(J.get$dartValue$x(thisArg)._list1$_contents[index]);
+    },
+    $signature: 486
+  };
+  A.legacyListClass_closure1.prototype = {
+    call$3(thisArg, index, value) {
+      var t1 = J.getInterceptor$x(thisArg),
+        t2 = t1.get$dartValue(thisArg)._list1$_contents,
+        mutable = A._setArrayType(t2.slice(0), A._arrayInstanceType(t2));
+      mutable[index] = A.unwrapValue(value);
+      t1.set$dartValue(thisArg, t1.get$dartValue(thisArg).withListContents$1(mutable));
+    },
+    "call*": "call$3",
+    $requiredArgCount: 3,
+    $signature: 487
+  };
+  A.legacyListClass_closure2.prototype = {
+    call$1(thisArg) {
+      return J.get$dartValue$x(thisArg)._list1$_separator === B.ListSeparator_ECn0;
+    },
+    $signature: 488
+  };
+  A.legacyListClass_closure3.prototype = {
+    call$2(thisArg, isComma) {
+      var t1 = J.getInterceptor$x(thisArg),
+        t2 = t1.get$dartValue(thisArg)._list1$_contents,
+        t3 = isComma ? B.ListSeparator_ECn0 : B.ListSeparator_nbm0;
+      t1.set$dartValue(thisArg, A.SassList$0(t2, t3, t1.get$dartValue(thisArg)._list1$_hasBrackets));
+    },
+    $signature: 489
+  };
+  A.legacyListClass_closure4.prototype = {
+    call$1(thisArg) {
+      return J.get$dartValue$x(thisArg)._list1$_contents.length;
+    },
+    $signature: 490
+  };
+  A.SassList0.prototype = {
+    get$separator(_) {
+      return this._list1$_separator;
+    },
+    get$hasBrackets() {
+      return this._list1$_hasBrackets;
+    },
+    get$isBlank() {
+      return !this._list1$_hasBrackets && B.JSArray_methods.every$1(this._list1$_contents, new A.SassList_isBlank_closure0());
+    },
+    get$asList() {
+      return this._list1$_contents;
+    },
+    get$lengthAsList() {
+      return this._list1$_contents.length;
+    },
+    SassList$3$brackets0(contents, _separator, brackets) {
+      if (this._list1$_separator === B.ListSeparator_undecided_null_undecided0 && this._list1$_contents.length > 1)
+        throw A.wrapException(A.ArgumentError$(string$.A_list, null));
+    },
+    accept$1$1(visitor) {
+      return visitor.visitList$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertMap$1($name) {
+      return this._list1$_contents.length === 0 ? B.SassMap_Map_empty0 : this.super$Value$assertMap0($name);
+    },
+    tryMap$0() {
+      return this._list1$_contents.length === 0 ? B.SassMap_Map_empty0 : null;
+    },
+    $eq(_, other) {
+      var t1, _this = this;
+      if (other == null)
+        return false;
+      if (!(other instanceof A.SassList0 && other._list1$_separator === _this._list1$_separator && other._list1$_hasBrackets === _this._list1$_hasBrackets && B.C_ListEquality.equals$2(0, other._list1$_contents, _this._list1$_contents)))
+        t1 = _this._list1$_contents.length === 0 && other instanceof A.SassMap0 && other.get$asList().length === 0;
+      else
+        t1 = true;
+      return t1;
+    },
+    get$hashCode(_) {
+      return B.C_ListEquality0.hash$1(this._list1$_contents);
+    }
+  };
+  A.SassList_isBlank_closure0.prototype = {
+    call$1(element) {
+      return element.get$isBlank();
+    },
+    $signature: 49
+  };
+  A.ListSeparator0.prototype = {
+    _enumToString$0() {
+      return "ListSeparator." + this._name;
+    },
+    toString$0(_) {
+      return this._list1$_name;
+    }
+  };
+  A.JSLogger.prototype = {};
+  A.WarnOptions.prototype = {};
+  A.DebugOptions.prototype = {};
+  A.LoggerWithDeprecationType.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+      this.internalWarn$4$deprecation$span$trace(message, deprecation ? B.Deprecation_oty : null, span, trace);
+    },
+    warn$1(_, message) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, null);
+    },
+    warn$3$span$trace(_, message, span, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, trace);
+    },
+    warn$2$span(_, message, span) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, null);
+    },
+    warn$2$trace(_, message, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, trace);
+    }
+  };
+  A._QuietLogger0.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+    },
+    warn$2$span(_, message, span) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, null);
+    }
+  };
+  A.LoudComment0.prototype = {
+    get$span(_) {
+      return this.text.span;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitLoudComment$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.text.toString$0(0);
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1
+  };
+  A.MapExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitMapExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t2, t3, _i, t4, key, value,
+        t1 = A._setArrayType([], type$.JSArray_String);
+      for (t2 = this.pairs, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        t4 = t2[_i];
+        key = t4._0;
+        value = t4._1;
+        t1.push(key.toString$0(0) + ": " + value.toString$0(0));
+      }
+      return "(" + B.JSArray_methods.join$1(t1, ", ") + ")";
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._get_closure0.prototype = {
+    call$1($arguments) {
+      var value,
+        t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value_2);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      for (t1 = A.IterableExtension_get_exceptLast0(t2), t1 = t1.get$iterator(t1); t1.moveNext$0(); map = value) {
+        value = map._map0$_contents.$index(0, t1.get$current(t1));
+        if (!(value instanceof A.SassMap0))
+          return B.C__SassNull0;
+      }
+      t1 = map._map0$_contents.$index(0, B.JSArray_methods.get$last(t2));
+      return t1 == null ? B.C__SassNull0 : t1;
+    },
+    $signature: 3
+  };
+  A._set_closure1.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A._modify0(t1.$index($arguments, 0).assertMap$1("map"), A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value_2), new A._set__closure2($arguments), true);
+    },
+    $signature: 3
+  };
+  A._set__closure2.prototype = {
+    call$1(_) {
+      return J.$index$asx(this.$arguments, 2);
+    },
+    $signature: 41
+  };
+  A._set_closure2.prototype = {
+    call$1($arguments) {
+      var keys, t3, t1 = {},
+        t2 = J.getInterceptor$asx($arguments),
+        map = t2.$index($arguments, 0).assertMap$1("map"),
+        _0_0 = t2.$index($arguments, 1).get$asList(),
+        _0_1 = _0_0.length;
+      if (_0_1 <= 0)
+        throw A.wrapException(A.SassScriptException$0("Expected $args to contain a key.", null));
+      if (_0_1 === 1)
+        throw A.wrapException(A.SassScriptException$0("Expected $args to contain a value.", null));
+      keys = t1.value = null;
+      t2 = _0_1 >= 1;
+      if (t2) {
+        t3 = _0_1 - 1;
+        keys = B.JSArray_methods.sublist$2(_0_0, 0, t3);
+        t1.value = _0_0[t3];
+      }
+      if (t2)
+        return A._modify0(map, keys, new A._set__closure1(t1), true);
+      throw A.wrapException("[BUG] Unreachable code");
+    },
+    $signature: 3
+  };
+  A._set__closure1.prototype = {
+    call$1(_) {
+      return this._box_0.value;
+    },
+    $signature: 41
+  };
+  A._merge_closure1.prototype = {
+    call$1($arguments) {
+      var t2,
+        t1 = J.getInterceptor$asx($arguments),
+        map1 = t1.$index($arguments, 0).assertMap$1("map1"),
+        map2 = t1.$index($arguments, 1).assertMap$1("map2");
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$of(map1._map0$_contents, t1, t1);
+      t2.addAll$1(0, map2._map0$_contents);
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 33
+  };
+  A._merge_closure2.prototype = {
+    call$1($arguments) {
+      var t2, keys, last, _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        map1 = t1.$index($arguments, 0).assertMap$1("map1"),
+        _0_0 = t1.$index($arguments, 1).get$asList(),
+        _0_1 = _0_0.length;
+      if (_0_1 <= 0)
+        throw A.wrapException(A.SassScriptException$0("Expected $args to contain a key.", _null));
+      if (_0_1 === 1)
+        throw A.wrapException(A.SassScriptException$0("Expected $args to contain a map.", _null));
+      t1 = _0_1 >= 1;
+      if (t1) {
+        t2 = _0_1 - 1;
+        keys = B.JSArray_methods.sublist$2(_0_0, 0, t2);
+        last = _0_0[t2];
+      } else {
+        last = _null;
+        keys = last;
+      }
+      if (t1)
+        return A._modify0(map1, keys, new A._merge__closure0(last.assertMap$1("map2")), true);
+      throw A.wrapException("[BUG] Unreachable code");
+    },
+    $signature: 3
+  };
+  A._merge__closure0.prototype = {
+    call$1(oldValue) {
+      var t1, t2,
+        nestedMap = oldValue.tryMap$0();
+      if (nestedMap == null)
+        return this.map2;
+      t1 = type$.Value_2;
+      t2 = A.LinkedHashMap_LinkedHashMap$of(nestedMap._map0$_contents, t1, t1);
+      t2.addAll$1(0, this.map2._map0$_contents);
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+    },
+    $signature: 491
+  };
+  A._deepMerge_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A._deepMergeImpl0(t1.$index($arguments, 0).assertMap$1("map1"), t1.$index($arguments, 1).assertMap$1("map2"));
+    },
+    $signature: 33
+  };
+  A._deepRemove_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value_2);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      return A._modify0(map, A.IterableExtension_get_exceptLast0(t2), new A._deepRemove__closure0(t2), false);
+    },
+    $signature: 3
+  };
+  A._deepRemove__closure0.prototype = {
+    call$1(value) {
+      var t1, nestedMap, t2,
+        _0_0 = value.tryMap$0();
+      if (_0_0 != null) {
+        t1 = _0_0._map0$_contents.containsKey$1(B.JSArray_methods.get$last(this.keys));
+        nestedMap = _0_0;
+      } else {
+        nestedMap = null;
+        t1 = false;
+      }
+      if (t1) {
+        t1 = type$.Value_2;
+        t2 = A.LinkedHashMap_LinkedHashMap$of(nestedMap._map0$_contents, t1, t1);
+        t2.remove$1(0, B.JSArray_methods.get$last(this.keys));
+        return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+      }
+      return value;
+    },
+    $signature: 41
+  };
+  A._remove_closure1.prototype = {
+    call$1($arguments) {
+      return J.$index$asx($arguments, 0).assertMap$1("map");
+    },
+    $signature: 33
+  };
+  A._remove_closure2.prototype = {
+    call$1($arguments) {
+      var mutableMap, t3, _i,
+        t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value_2);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      t1 = type$.Value_2;
+      mutableMap = A.LinkedHashMap_LinkedHashMap$of(map._map0$_contents, t1, t1);
+      for (t3 = t2.length, _i = 0; _i < t2.length; t2.length === t3 || (0, A.throwConcurrentModificationError)(t2), ++_i)
+        mutableMap.remove$1(0, t2[_i]);
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+    },
+    $signature: 33
+  };
+  A._keys_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.$index$asx($arguments, 0).assertMap$1("map")._map0$_contents;
+      return A.SassList$0(t1.get$keys(t1), B.ListSeparator_ECn0, false);
+    },
+    $signature: 22
+  };
+  A._values_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.$index$asx($arguments, 0).assertMap$1("map")._map0$_contents;
+      return A.SassList$0(t1.get$values(t1), B.ListSeparator_ECn0, false);
+    },
+    $signature: 22
+  };
+  A._hasKey_closure0.prototype = {
+    call$1($arguments) {
+      var value,
+        t1 = J.getInterceptor$asx($arguments),
+        map = t1.$index($arguments, 0).assertMap$1("map"),
+        t2 = A._setArrayType([t1.$index($arguments, 1)], type$.JSArray_Value_2);
+      B.JSArray_methods.addAll$1(t2, t1.$index($arguments, 2).get$asList());
+      for (t1 = A.IterableExtension_get_exceptLast0(t2), t1 = t1.get$iterator(t1); t1.moveNext$0(); map = value) {
+        value = map._map0$_contents.$index(0, t1.get$current(t1));
+        if (!(value instanceof A.SassMap0))
+          return B.SassBoolean_false0;
+      }
+      return map._map0$_contents.containsKey$1(B.JSArray_methods.get$last(t2)) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._modify_modifyNestedMap0.prototype = {
+    call$1(map) {
+      var nestedMap, _this = this,
+        t1 = type$.Value_2,
+        mutableMap = A.LinkedHashMap_LinkedHashMap$of(map._map0$_contents, t1, t1),
+        t2 = _this.keyIterator,
+        key = t2.get$current(t2);
+      if (!t2.moveNext$0()) {
+        t2 = mutableMap.$index(0, key);
+        if (t2 == null)
+          t2 = B.C__SassNull0;
+        mutableMap.$indexSet(0, key, _this.modify.call$1(t2));
+        return new A.SassMap0(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+      }
+      t2 = mutableMap.$index(0, key);
+      nestedMap = t2 == null ? null : t2.tryMap$0();
+      t2 = nestedMap == null;
+      if (t2 && !_this.addNesting)
+        return new A.SassMap0(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+      mutableMap.$indexSet(0, key, _this.call$1(t2 ? B.SassMap_Map_empty0 : nestedMap));
+      return new A.SassMap0(A.ConstantMap_ConstantMap$from(mutableMap, t1, t1));
+    },
+    $signature: 492
+  };
+  A.MapExtensions_get_pairs_closure0.prototype = {
+    call$1(e) {
+      return new A._Record_2(e.key, e.value);
+    },
+    $signature() {
+      return this.K._eval$1("@<0>")._bind$1(this.V)._eval$1("+(1,2)(MapEntry<1,2>)");
+    }
+  };
+  A.mapClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassMap", new A.mapClass__closure())),
+        t2 = J.getInterceptor$x(jsClass);
+      A.defineGetter(t2.get$$prototype(jsClass), "contents", new A.mapClass__closure0(), null);
+      t2.get$$prototype(jsClass).get = A.allowInteropCaptureThisNamed("get", new A.mapClass__closure1());
+      A.JSClassExtension_injectSuperclass(t1._as(B.SassMap_Map_empty0.constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.mapClass__closure.prototype = {
+    call$2($self, contents) {
+      var t1;
+      if (contents == null)
+        t1 = B.SassMap_Map_empty0;
+      else {
+        t1 = type$.Value_2;
+        t1 = new A.SassMap0(A.ConstantMap_ConstantMap$from(A.immutableMapToDartMap(contents).cast$2$0(0, t1, t1), t1, t1));
+      }
+      return t1;
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 493
+  };
+  A.mapClass__closure0.prototype = {
+    call$1($self) {
+      return A.dartMapToImmutableMap($self._map0$_contents);
+    },
+    $signature: 494
+  };
+  A.mapClass__closure1.prototype = {
+    call$2($self, indexOrKey) {
+      var index, t1, _0_0;
+      if (typeof indexOrKey == "number") {
+        index = B.JSNumber_methods.floor$0(indexOrKey);
+        if (index < 0) {
+          t1 = $self._map0$_contents;
+          index = t1.get$length(t1) + index;
+        }
+        if (index >= 0) {
+          t1 = $self._map0$_contents;
+          t1 = index >= t1.get$length(t1);
+        } else
+          t1 = true;
+        if (t1)
+          return self.undefined;
+        t1 = type$.Value_2;
+        _0_0 = A.MapExtensions_get_pairs0($self._map0$_contents, t1, t1).elementAt$1(0, index);
+        return A.SassList$0(A._setArrayType([_0_0._0, _0_0._1], type$.JSArray_Value_2), B.ListSeparator_nbm0, false);
+      } else {
+        t1 = $self._map0$_contents.$index(0, indexOrKey);
+        return t1 == null ? self.undefined : t1;
+      }
+    },
+    $signature: 495
+  };
+  A._NodeSassMap.prototype = {};
+  A.legacyMapClass_closure.prototype = {
+    call$3(thisArg, $length, dartValue) {
+      var t1, t2, t3, map;
+      if (dartValue == null) {
+        $length.toString;
+        t1 = type$.Value_2;
+        t2 = A.Iterable_Iterable$generate($length, new A.legacyMapClass__closure(), t1);
+        t3 = A.Iterable_Iterable$generate($length, new A.legacyMapClass__closure0(), t1);
+        map = A.LinkedHashMap_LinkedHashMap(null, null, null, t1, t1);
+        A.MapBase__fillMapWithIterables(map, t2, t3);
+        t1 = new A.SassMap0(A.ConstantMap_ConstantMap$from(map, t1, t1));
+      } else
+        t1 = dartValue;
+      J.set$dartValue$x(thisArg, t1);
+    },
+    call$2(thisArg, $length) {
+      return this.call$3(thisArg, $length, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 496
+  };
+  A.legacyMapClass__closure.prototype = {
+    call$1(i) {
+      return A.SassNumber_SassNumber0(i, null);
+    },
+    $signature: 497
+  };
+  A.legacyMapClass__closure0.prototype = {
+    call$1(_) {
+      return B.C__SassNull0;
+    },
+    $signature: 239
+  };
+  A.legacyMapClass_closure0.prototype = {
+    call$2(thisArg, index) {
+      var t1 = J.get$dartValue$x(thisArg)._map0$_contents;
+      return A.wrapValue(J.elementAt$1$ax(t1.get$keys(t1), index));
+    },
+    $signature: 238
+  };
+  A.legacyMapClass_closure1.prototype = {
+    call$2(thisArg, index) {
+      var t1 = J.get$dartValue$x(thisArg)._map0$_contents;
+      return A.wrapValue(t1.get$values(t1).elementAt$1(0, index));
+    },
+    $signature: 238
+  };
+  A.legacyMapClass_closure2.prototype = {
+    call$1(thisArg) {
+      var t1 = J.get$dartValue$x(thisArg)._map0$_contents;
+      return t1.get$length(t1);
+    },
+    $signature: 499
+  };
+  A.legacyMapClass_closure3.prototype = {
+    call$3(thisArg, index, key) {
+      var newKey, t2, newMap, t3, i, t4, oldKey, oldValue,
+        t1 = J.getInterceptor$x(thisArg),
+        oldMap = t1.get$dartValue(thisArg)._map0$_contents,
+        $length = oldMap.get$length(oldMap);
+      A.IndexError_check(index, $length, oldMap, null, "index");
+      newKey = A.unwrapValue(key);
+      t2 = type$.Value_2;
+      newMap = A.LinkedHashMap_LinkedHashMap$_empty(t2, t2);
+      for (t3 = A.MapExtensions_get_pairs0(t1.get$dartValue(thisArg)._map0$_contents, t2, t2), t3 = t3.get$iterator(t3), i = 0; t3.moveNext$0();) {
+        t4 = t3.get$current(t3);
+        oldKey = t4._0;
+        oldValue = t4._1;
+        if (i === index)
+          newMap.$indexSet(0, newKey, oldValue);
+        else {
+          if (newKey.$eq(0, oldKey))
+            throw A.wrapException(A.ArgumentError$value(key, "key", "is already in the map"));
+          newMap.$indexSet(0, oldKey, oldValue);
+        }
+        ++i;
+      }
+      t1.set$dartValue(thisArg, new A.SassMap0(A.ConstantMap_ConstantMap$from(newMap, t2, t2)));
+    },
+    "call*": "call$3",
+    $requiredArgCount: 3,
+    $signature: 236
+  };
+  A.legacyMapClass_closure4.prototype = {
+    call$3(thisArg, index, value) {
+      var t3,
+        t1 = J.getInterceptor$x(thisArg),
+        t2 = t1.get$dartValue(thisArg)._map0$_contents,
+        key = J.elementAt$1$ax(t2.get$keys(t2), index);
+      t2 = type$.Value_2;
+      t3 = A.LinkedHashMap_LinkedHashMap$of(t1.get$dartValue(thisArg)._map0$_contents, t2, t2);
+      t3.$indexSet(0, key, A.unwrapValue(value));
+      t1.set$dartValue(thisArg, new A.SassMap0(A.ConstantMap_ConstantMap$from(t3, t2, t2)));
+    },
+    "call*": "call$3",
+    $requiredArgCount: 3,
+    $signature: 236
+  };
+  A.SassMap0.prototype = {
+    get$separator(_) {
+      var t1 = this._map0$_contents;
+      return t1.get$isEmpty(t1) ? B.ListSeparator_undecided_null_undecided0 : B.ListSeparator_ECn0;
+    },
+    get$asList() {
+      var t3, t4, t5, result,
+        t1 = type$.JSArray_Value_2,
+        t2 = A._setArrayType([], t1);
+      for (t3 = type$.Value_2, t4 = A.MapExtensions_get_pairs0(this._map0$_contents, t3, t3), t4 = t4.get$iterator(t4); t4.moveNext$0();) {
+        t5 = t4.get$current(t4);
+        result = A.List_List$from(A._setArrayType([t5._0, t5._1], t1), false, t3);
+        result.fixed$length = Array;
+        result.immutable$list = Array;
+        t2.push(new A.SassList0(result, B.ListSeparator_nbm0, false));
+      }
+      return t2;
+    },
+    get$lengthAsList() {
+      var t1 = this._map0$_contents;
+      return t1.get$length(t1);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitMap$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertMap$1($name) {
+      return this;
+    },
+    tryMap$0() {
+      return this;
+    },
+    $eq(_, other) {
+      var t1;
+      if (other == null)
+        return false;
+      if (!(other instanceof A.SassMap0 && B.C_MapEquality.equals$2(0, other._map0$_contents, this._map0$_contents))) {
+        t1 = this._map0$_contents;
+        t1 = t1.get$isEmpty(t1) && other instanceof A.SassList0 && other._list1$_contents.length === 0;
+      } else
+        t1 = true;
+      return t1;
+    },
+    get$hashCode(_) {
+      var t1 = this._map0$_contents;
+      return t1.get$isEmpty(t1) ? B.C_ListEquality0.hash$1(B.List_empty19) : B.C_MapEquality.hash$1(t1);
+    }
+  };
+  A.global_closure31.prototype = {
+    call$1($arguments) {
+      var t1,
+        number = J.$index$asx($arguments, 0).assertNumber$1("number");
+      if (number.hasUnit$1("%"))
+        A.warnForDeprecation0(string$.Passinp + number.toString$0(0) + ")\nTo emit a CSS abs() now: abs(#{" + number.toString$0(0) + string$.x7d__Mor, B.Deprecation_jYb);
+      t1 = number.get$numeratorUnits(number);
+      return A.SassNumber_SassNumber$withUnits0(Math.abs(number._number1$_value), number.get$denominatorUnits(number), t1);
+    },
+    $signature: 12
+  };
+  A.module_closure11.prototype = {
+    call$1(value) {
+      return Math.abs(value);
+    },
+    $signature: 38
+  };
+  A._ceil_closure0.prototype = {
+    call$1(value) {
+      return B.JSNumber_methods.ceil$0(value);
+    },
+    $signature: 38
+  };
+  A._clamp_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        min = t1.$index($arguments, 0).assertNumber$1("min"),
+        number = t1.$index($arguments, 1).assertNumber$1("number"),
+        max = t1.$index($arguments, 2).assertNumber$1("max");
+      number.convertValueToMatch$3(min, "number", "min");
+      max.convertValueToMatch$3(min, "max", "min");
+      if (min.greaterThanOrEquals$1(max).value)
+        return min;
+      if (min.greaterThanOrEquals$1(number).value)
+        return min;
+      if (number.greaterThanOrEquals$1(max).value)
+        return max;
+      return number;
+    },
+    $signature: 12
+  };
+  A._floor_closure0.prototype = {
+    call$1(value) {
+      return B.JSNumber_methods.floor$0(value);
+    },
+    $signature: 38
+  };
+  A._max_closure0.prototype = {
+    call$1($arguments) {
+      var t1, t2, max, _i, number;
+      for (t1 = J.$index$asx($arguments, 0).get$asList(), t2 = t1.length, max = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        number = t1[_i].assertNumber$0();
+        if (max == null || max.lessThan$1(number).value)
+          max = number;
+      }
+      if (max != null)
+        return max;
+      throw A.wrapException(A.SassScriptException$0("At least one argument must be passed.", null));
+    },
+    $signature: 12
+  };
+  A._min_closure0.prototype = {
+    call$1($arguments) {
+      var t1, t2, min, _i, number;
+      for (t1 = J.$index$asx($arguments, 0).get$asList(), t2 = t1.length, min = null, _i = 0; _i < t1.length; t1.length === t2 || (0, A.throwConcurrentModificationError)(t1), ++_i) {
+        number = t1[_i].assertNumber$0();
+        if (min == null || min.greaterThan$1(number).value)
+          min = number;
+      }
+      if (min != null)
+        return min;
+      throw A.wrapException(A.SassScriptException$0("At least one argument must be passed.", null));
+    },
+    $signature: 12
+  };
+  A._round_closure0.prototype = {
+    call$1(number) {
+      return B.JSNumber_methods.round$0(number);
+    },
+    $signature: 38
+  };
+  A._hypot_closure0.prototype = {
+    call$1($arguments) {
+      var subtotal, i, i0, t3, t4,
+        t1 = J.$index$asx($arguments, 0).get$asList(),
+        t2 = A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,SassNumber0>"),
+        numbers = A.List_List$of(new A.MappedListIterable(t1, new A._hypot__closure0(), t2), true, t2._eval$1("ListIterable.E"));
+      t1 = numbers.length;
+      if (t1 === 0)
+        throw A.wrapException(A.SassScriptException$0("At least one argument must be passed.", null));
+      for (subtotal = 0, i = 0; i < t1; i = i0) {
+        i0 = i + 1;
+        subtotal += Math.pow(numbers[i].convertValueToMatch$3(numbers[0], "numbers[" + i0 + "]", "numbers[1]"), 2);
+      }
+      t1 = Math.sqrt(subtotal);
+      t2 = numbers[0];
+      t3 = J.getInterceptor$x(t2);
+      t4 = t3.get$numeratorUnits(t2);
+      return A.SassNumber_SassNumber$withUnits0(t1, t3.get$denominatorUnits(t2), t4);
+    },
+    $signature: 12
+  };
+  A._hypot__closure0.prototype = {
+    call$1(argument) {
+      return argument.assertNumber$0();
+    },
+    $signature: 501
+  };
+  A._log_closure0.prototype = {
+    call$1($arguments) {
+      var base,
+        _s18_ = " to have no units.",
+        _null = null,
+        t1 = J.getInterceptor$asx($arguments),
+        number = t1.$index($arguments, 0).assertNumber$1("number");
+      if (number.get$hasUnits())
+        throw A.wrapException(A.SassScriptException$0("$number: Expected " + number.toString$0(0) + _s18_, _null));
+      else if (J.$eq$(t1.$index($arguments, 1), B.C__SassNull0))
+        return A.SassNumber_SassNumber0(Math.log(number._number1$_value), _null);
+      base = t1.$index($arguments, 1).assertNumber$1("base");
+      if (base.get$hasUnits())
+        throw A.wrapException(A.SassScriptException$0("$base: Expected " + base.toString$0(0) + _s18_, _null));
+      else
+        return A.SassNumber_SassNumber0(Math.log(number._number1$_value) / Math.log(base._number1$_value), _null);
+    },
+    $signature: 12
+  };
+  A._pow_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return A.pow1(t1.$index($arguments, 0).assertNumber$1("base"), t1.$index($arguments, 1).assertNumber$1("exponent"));
+    },
+    $signature: 12
+  };
+  A._atan2_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        y = t1.$index($arguments, 0).assertNumber$1("y");
+      return A.SassNumber_SassNumber$withUnits0(Math.atan2(y._number1$_value, t1.$index($arguments, 1).assertNumber$1("x").convertValueToMatch$3(y, "x", "y")) * 57.29577951308232, null, A._setArrayType(["deg"], type$.JSArray_String));
+    },
+    $signature: 12
+  };
+  A._compatible_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments);
+      return t1.$index($arguments, 0).assertNumber$1("number1").isComparableTo$1(t1.$index($arguments, 1).assertNumber$1("number2")) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._isUnitless_closure0.prototype = {
+    call$1($arguments) {
+      return !J.$index$asx($arguments, 0).assertNumber$1("number").get$hasUnits() ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._unit_closure0.prototype = {
+    call$1($arguments) {
+      return new A.SassString0(J.$index$asx($arguments, 0).assertNumber$1("number").get$unitString(), true);
+    },
+    $signature: 19
+  };
+  A._percentage_closure0.prototype = {
+    call$1($arguments) {
+      var number = J.$index$asx($arguments, 0).assertNumber$1("number");
+      number.assertNoUnits$1("number");
+      return A.SassNumber_SassNumber0(number._number1$_value * 100, "%");
+    },
+    $signature: 12
+  };
+  A._randomFunction_closure0.prototype = {
+    call$1($arguments) {
+      var limit, limitScalar,
+        t1 = J.getInterceptor$asx($arguments);
+      if (J.$eq$(t1.$index($arguments, 0), B.C__SassNull0))
+        return A.SassNumber_SassNumber0($.$get$_random2().nextDouble$0(), null);
+      limit = t1.$index($arguments, 0).assertNumber$1("limit");
+      if (limit.get$hasUnits())
+        A.warnForDeprecation0(string$.math_r + limit.toString$0(0) + string$.x29x20in_a + limit.get$unitString() + ")) * 1" + limit.get$unitString() + string$.x0a_To_p + limit.get$unitString() + string$.x29x29__Mo, B.Deprecation_oCX);
+      limitScalar = limit.assertInt$1("limit");
+      if (limitScalar < 1)
+        throw A.wrapException(A.SassScriptException$0("$limit: Must be greater than 0, was " + limit.toString$0(0) + ".", null));
+      return A.SassNumber_SassNumber0($.$get$_random2().nextInt$1(limitScalar) + 1, null);
+    },
+    $signature: 12
+  };
+  A._div_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        number1 = t1.$index($arguments, 0),
+        number2 = t1.$index($arguments, 1);
+      if (!(number1 instanceof A.SassNumber0) || !(number2 instanceof A.SassNumber0))
+        A.warn0(string$.math_d);
+      return number1.dividedBy$1(number2);
+    },
+    $signature: 3
+  };
+  A._singleArgumentMathFunc_closure0.prototype = {
+    call$1($arguments) {
+      return this.mathFunc.call$1(J.$index$asx($arguments, 0).assertNumber$1("number"));
+    },
+    $signature: 12
+  };
+  A._numberFunction_closure0.prototype = {
+    call$1($arguments) {
+      var number = J.$index$asx($arguments, 0).assertNumber$1("number"),
+        t1 = this.transform.call$1(number._number1$_value),
+        t2 = number.get$numeratorUnits(number);
+      return A.SassNumber_SassNumber$withUnits0(t1, number.get$denominatorUnits(number), t2);
+    },
+    $signature: 12
+  };
+  A.CssMediaQuery0.prototype = {
+    merge$1(other) {
+      var t1, ourModifier, t2, t3, ourType, t4, theirModifier, t5, t6, theirType, t7, t8, negativeConditions, conditions, type, modifier, fewerConditions, fewerConditions0, moreConditions, _this = this, _null = null, _s3_ = "all";
+      if (!_this.conjunction || !other.conjunction)
+        return B._SingletonCssMediaQueryMergeResult_10;
+      t1 = _this.modifier;
+      ourModifier = t1 == null ? _null : t1.toLowerCase();
+      t2 = _this.type;
+      t3 = t2 == null;
+      ourType = t3 ? _null : t2.toLowerCase();
+      t4 = other.modifier;
+      theirModifier = t4 == null ? _null : t4.toLowerCase();
+      t5 = other.type;
+      t6 = t5 == null;
+      theirType = t6 ? _null : t5.toLowerCase();
+      t7 = ourType == null;
+      if (t7 && theirType == null) {
+        t1 = A.List_List$of(_this.conditions, true, type$.String);
+        B.JSArray_methods.addAll$1(t1, other.conditions);
+        return new A.MediaQuerySuccessfulMergeResult0(A.CssMediaQuery$condition0(t1, true));
+      }
+      t8 = ourModifier === "not";
+      if (t8 !== (theirModifier === "not")) {
+        if (ourType == theirType) {
+          negativeConditions = t8 ? _this.conditions : other.conditions;
+          if (B.JSArray_methods.every$1(negativeConditions, B.JSArray_methods.get$contains(t8 ? other.conditions : _this.conditions)))
+            return B._SingletonCssMediaQueryMergeResult_00;
+          else
+            return B._SingletonCssMediaQueryMergeResult_10;
+        } else if (t3 || A.equalsIgnoreCase0(t2, _s3_) || t6 || A.equalsIgnoreCase0(t5, _s3_))
+          return B._SingletonCssMediaQueryMergeResult_10;
+        if (t8) {
+          conditions = other.conditions;
+          type = theirType;
+          modifier = theirModifier;
+        } else {
+          conditions = _this.conditions;
+          type = ourType;
+          modifier = ourModifier;
+        }
+      } else if (t8) {
+        if (ourType != theirType)
+          return B._SingletonCssMediaQueryMergeResult_10;
+        fewerConditions = _this.conditions;
+        fewerConditions0 = other.conditions;
+        t3 = fewerConditions.length > fewerConditions0.length;
+        moreConditions = t3 ? fewerConditions : fewerConditions0;
+        if (t3)
+          fewerConditions = fewerConditions0;
+        if (!B.JSArray_methods.every$1(fewerConditions, B.JSArray_methods.get$contains(moreConditions)))
+          return B._SingletonCssMediaQueryMergeResult_10;
+        conditions = moreConditions;
+        type = ourType;
+        modifier = ourModifier;
+      } else if (t3 || A.equalsIgnoreCase0(t2, _s3_)) {
+        type = (t6 || A.equalsIgnoreCase0(t5, _s3_)) && t7 ? _null : theirType;
+        t3 = A.List_List$of(_this.conditions, true, type$.String);
+        B.JSArray_methods.addAll$1(t3, other.conditions);
+        conditions = t3;
+        modifier = theirModifier;
+      } else {
+        if (t6 || A.equalsIgnoreCase0(t5, _s3_)) {
+          t3 = A.List_List$of(_this.conditions, true, type$.String);
+          B.JSArray_methods.addAll$1(t3, other.conditions);
+          conditions = t3;
+          modifier = ourModifier;
+        } else {
+          if (ourType != theirType)
+            return B._SingletonCssMediaQueryMergeResult_00;
+          else {
+            modifier = ourModifier == null ? theirModifier : ourModifier;
+            t3 = A.List_List$of(_this.conditions, true, type$.String);
+            B.JSArray_methods.addAll$1(t3, other.conditions);
+          }
+          conditions = t3;
+        }
+        type = ourType;
+      }
+      t2 = type == ourType ? t2 : t5;
+      return new A.MediaQuerySuccessfulMergeResult0(A.CssMediaQuery$type0(t2, conditions, modifier == ourModifier ? t1 : t4));
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.CssMediaQuery0 && other.modifier == this.modifier && other.type == this.type && B.C_ListEquality.equals$2(0, other.conditions, this.conditions);
+    },
+    get$hashCode(_) {
+      return J.get$hashCode$(this.modifier) ^ J.get$hashCode$(this.type) ^ B.C_ListEquality0.hash$1(this.conditions);
+    },
+    toString$0(_) {
+      var t2, _this = this,
+        t1 = _this.modifier;
+      t1 = t1 != null ? "" + (t1 + " ") : "";
+      t2 = _this.type;
+      if (t2 != null) {
+        t1 += t2;
+        if (_this.conditions.length !== 0)
+          t1 += " and ";
+      }
+      t2 = _this.conjunction ? " and " : " or ";
+      t2 = t1 + B.JSArray_methods.join$1(_this.conditions, t2);
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    }
+  };
+  A._SingletonCssMediaQueryMergeResult0.prototype = {
+    _enumToString$0() {
+      return "_SingletonCssMediaQueryMergeResult." + this._name;
+    }
+  };
+  A.MediaQuerySuccessfulMergeResult0.prototype = {
+    toString$0(_) {
+      return this.query.toString$0(0);
+    }
+  };
+  A.MediaQueryParser0.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.MediaQueryParser_parse_closure0(this));
+    },
+    _media_query$_mediaQuery$0() {
+      var conditions, conjunction, t1, identifier1, identifier2, type, modifier, _this = this, _s3_ = "and", _null = null;
+      if (_this.scanner.peekChar$0() === 40) {
+        conditions = A._setArrayType([_this._media_query$_mediaInParens$0()], type$.JSArray_String);
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1(_s3_)) {
+          _this.expectWhitespace$0();
+          B.JSArray_methods.addAll$1(conditions, _this._media_query$_mediaLogicSequence$1(_s3_));
+          conjunction = true;
+        } else {
+          t1 = _this.scanIdentifier$1("or");
+          if (t1) {
+            _this.expectWhitespace$0();
+            B.JSArray_methods.addAll$1(conditions, _this._media_query$_mediaLogicSequence$1("or"));
+          }
+          conjunction = !t1;
+        }
+        return A.CssMediaQuery$condition0(conditions, conjunction);
+      }
+      identifier1 = _this.identifier$0();
+      if (A.equalsIgnoreCase0(identifier1, "not")) {
+        _this.expectWhitespace$0();
+        if (!_this.lookingAtIdentifier$0())
+          return A.CssMediaQuery$condition0(A._setArrayType(["(not " + _this._media_query$_mediaInParens$0() + ")"], type$.JSArray_String), _null);
+      }
+      _this.whitespace$0();
+      if (!_this.lookingAtIdentifier$0())
+        return A.CssMediaQuery$type0(identifier1, _null, _null);
+      identifier2 = _this.identifier$0();
+      if (A.equalsIgnoreCase0(identifier2, _s3_)) {
+        _this.expectWhitespace$0();
+        type = identifier1;
+        modifier = _null;
+      } else {
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1(_s3_))
+          _this.expectWhitespace$0();
+        else
+          return A.CssMediaQuery$type0(identifier2, _null, identifier1);
+        type = identifier2;
+        modifier = identifier1;
+      }
+      if (_this.scanIdentifier$1("not")) {
+        _this.expectWhitespace$0();
+        return A.CssMediaQuery$type0(type, A._setArrayType(["(not " + _this._media_query$_mediaInParens$0() + ")"], type$.JSArray_String), modifier);
+      }
+      return A.CssMediaQuery$type0(type, _this._media_query$_mediaLogicSequence$1(_s3_), modifier);
+    },
+    _media_query$_mediaLogicSequence$1(operator) {
+      var t1, t2, _this = this,
+        result = A._setArrayType([], type$.JSArray_String);
+      for (t1 = _this.scanner; true;) {
+        t1.expectChar$2$name(40, "media condition in parentheses");
+        t2 = _this.declarationValue$0();
+        t1.expectChar$1(41);
+        result.push("(" + t2 + ")");
+        _this.whitespace$0();
+        if (!_this.scanIdentifier$1(operator))
+          return result;
+        _this.expectWhitespace$0();
+      }
+    },
+    _media_query$_mediaInParens$0() {
+      var t2,
+        t1 = this.scanner;
+      t1.expectChar$2$name(40, "media condition in parentheses");
+      t2 = this.declarationValue$0();
+      t1.expectChar$1(41);
+      return "(" + t2 + ")";
+    }
+  };
+  A.MediaQueryParser_parse_closure0.prototype = {
+    call$0() {
+      var queries = A._setArrayType([], type$.JSArray_CssMediaQuery_2),
+        t1 = this.$this,
+        t2 = t1.scanner;
+      do {
+        t1.whitespace$0();
+        queries.push(t1._media_query$_mediaQuery$0());
+        t1.whitespace$0();
+      } while (t2.scanChar$1(44));
+      t2.expectDone$0();
+      return queries;
+    },
+    $signature: 502
+  };
+  A.ModifiableCssMediaRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssMediaRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      return other instanceof A.ModifiableCssMediaRule0 && B.C_ListEquality.equals$2(0, this.queries, other.queries);
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssMediaRule$0(this.queries, this.span);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.MediaRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitMediaRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@media " + this.query.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.MergedExtension0.prototype = {
+    unmerge$0() {
+      return new A._SyncStarIterable(this.unmerge$body$MergedExtension0(), type$._SyncStarIterable_Extension_2);
+    },
+    unmerge$body$MergedExtension0() {
+      var $async$self = this;
+      return function() {
+        var $async$goto = 0, $async$handler = 1, $async$currentError, right, left;
+        return function $async$unmerge$0($async$iterator, $async$errorCode, $async$result) {
+          if ($async$errorCode === 1) {
+            $async$currentError = $async$result;
+            $async$goto = $async$handler;
+          }
+          while (true)
+            switch ($async$goto) {
+              case 0:
+                // Function start
+                left = $async$self.left;
+                $async$goto = left instanceof A.MergedExtension0 ? 2 : 4;
+                break;
+              case 2:
+                // then
+                $async$goto = 5;
+                return $async$iterator._yieldStar$1(left.unmerge$0());
+              case 5:
+                // after yield
+                // goto join
+                $async$goto = 3;
+                break;
+              case 4:
+                // else
+                $async$goto = 6;
+                return $async$iterator._async$_current = left, 1;
+              case 6:
+                // after yield
+              case 3:
+                // join
+                right = $async$self.right;
+                $async$goto = right instanceof A.MergedExtension0 ? 7 : 9;
+                break;
+              case 7:
+                // then
+                $async$goto = 10;
+                return $async$iterator._yieldStar$1(right.unmerge$0());
+              case 10:
+                // after yield
+                // goto join
+                $async$goto = 8;
+                break;
+              case 9:
+                // else
+                $async$goto = 11;
+                return $async$iterator._async$_current = right, 1;
+              case 11:
+                // after yield
+              case 8:
+                // join
+                // implicit return
+                return 0;
+              case 1:
+                // rethrow
+                return $async$iterator._datum = $async$currentError, 3;
+            }
+        };
+      };
+    }
+  };
+  A.MergedMapView0.prototype = {
+    get$keys(_) {
+      var t1 = this._merged_map_view$_mapsByKey;
+      return new A.LinkedHashMapKeyIterable(t1, A._instanceType(t1)._eval$1("LinkedHashMapKeyIterable<1>"));
+    },
+    get$length(_) {
+      return this._merged_map_view$_mapsByKey.__js_helper$_length;
+    },
+    get$isEmpty(_) {
+      return this._merged_map_view$_mapsByKey.__js_helper$_length === 0;
+    },
+    get$isNotEmpty(_) {
+      return this._merged_map_view$_mapsByKey.__js_helper$_length !== 0;
+    },
+    MergedMapView$10(maps, $K, $V) {
+      var t1, t2, t3, _i, map, t4, t5, t6;
+      for (t1 = maps.length, t2 = this._merged_map_view$_mapsByKey, t3 = $K._eval$1("@<0>")._bind$1($V)._eval$1("MergedMapView0<1,2>"), _i = 0; _i < maps.length; maps.length === t1 || (0, A.throwConcurrentModificationError)(maps), ++_i) {
+        map = maps[_i];
+        if (t3._is(map))
+          for (t4 = map._merged_map_view$_mapsByKey.get$values(0), t5 = A._instanceType(t4), t5 = t5._eval$1("@<1>")._bind$1(t5._rest[1]), t4 = new A.MappedIterator(J.get$iterator$ax(t4.__internal$_iterable), t4._f, t5._eval$1("MappedIterator<1,2>")), t5 = t5._rest[1]; t4.moveNext$0();) {
+            t6 = t4.__internal$_current;
+            if (t6 == null)
+              t6 = t5._as(t6);
+            A.setAll0(t2, t6.get$keys(t6), t6);
+          }
+        else
+          A.setAll0(t2, map.get$keys(map), map);
+      }
+    },
+    $index(_, key) {
+      var t1 = this._merged_map_view$_mapsByKey.$index(0, this.$ti._precomputed1._as(key));
+      return t1 == null ? null : t1.$index(0, key);
+    },
+    $indexSet(_, key, value) {
+      var _0_0 = this._merged_map_view$_mapsByKey.$index(0, key);
+      if (_0_0 != null)
+        _0_0.$indexSet(0, key, value);
+      else
+        throw A.wrapException(A.UnsupportedError$(string$.New_en));
+    },
+    remove$1(_, key) {
+      throw A.wrapException(A.UnsupportedError$(string$.Entrie));
+    },
+    containsKey$1(key) {
+      return this._merged_map_view$_mapsByKey.containsKey$1(key);
+    }
+  };
+  A.global_closure59.prototype = {
+    call$1($arguments) {
+      return $._features0.contains$1(0, J.$index$asx($arguments, 0).assertString$1("feature")._string0$_text) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A.global_closure60.prototype = {
+    call$1($arguments) {
+      return new A.SassString0(A.serializeValue0(J.get$first$ax($arguments), true, true), false);
+    },
+    $signature: 19
+  };
+  A.global_closure61.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        _0_0 = t1.$index($arguments, 0);
+      $label0$0: {
+        if (_0_0 instanceof A.SassArgumentList0) {
+          t1 = "arglist";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassBoolean0) {
+          t1 = "bool";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassColor0) {
+          t1 = "color";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassList0) {
+          t1 = "list";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassMap0) {
+          t1 = "map";
+          break $label0$0;
+        }
+        if (B.C__SassNull0 === _0_0) {
+          t1 = "null";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassNumber0) {
+          t1 = "number";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassFunction0) {
+          t1 = "function";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassMixin0) {
+          t1 = "mixin";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassCalculation0) {
+          t1 = "calculation";
+          break $label0$0;
+        }
+        if (_0_0 instanceof A.SassString0) {
+          t1 = "string";
+          break $label0$0;
+        }
+        t1 = A.throwExpression("[BUG] Unknown value type " + A.S(t1.$index($arguments, 0)));
+      }
+      return new A.SassString0(t1, false);
+    },
+    $signature: 19
+  };
+  A.global_closure62.prototype = {
+    call$1($arguments) {
+      var t2, t3, t4,
+        t1 = J.getInterceptor$asx($arguments),
+        _1_0 = t1.$index($arguments, 0);
+      if (_1_0 instanceof A.SassArgumentList0) {
+        _1_0._argument_list$_wereKeywordsAccessed = true;
+        t1 = type$.Value_2;
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+        for (t3 = A.MapExtensions_get_pairs0(_1_0._argument_list$_keywords, type$.String, t1), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+          t4 = t3.get$current(t3);
+          t2.$indexSet(0, new A.SassString0(t4._0, false), t4._1);
+        }
+        return new A.SassMap0(A.ConstantMap_ConstantMap$from(t2, t1, t1));
+      } else
+        throw A.wrapException("$args: " + A.S(t1.$index($arguments, 0)) + " is not an argument list.");
+    },
+    $signature: 33
+  };
+  A.local_closure2.prototype = {
+    call$1($arguments) {
+      return new A.SassString0(J.$index$asx($arguments, 0).assertCalculation$1("calc").name, true);
+    },
+    $signature: 19
+  };
+  A.local_closure3.prototype = {
+    call$1($arguments) {
+      var t1 = J.$index$asx($arguments, 0).assertCalculation$1("calc").$arguments;
+      return A.SassList$0(new A.MappedListIterable(t1, new A.local__closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value0>")), B.ListSeparator_ECn0, false);
+    },
+    $signature: 22
+  };
+  A.local__closure0.prototype = {
+    call$1(argument) {
+      return argument instanceof A.Value0 ? argument : new A.SassString0(J.toString$0$(argument), false);
+    },
+    $signature: 503
+  };
+  A.local_closure4.prototype = {
+    call$1($arguments) {
+      var _0_2_isSet, _0_2, acceptsContent, t1, _0_5_isSet, _0_5, hasContent,
+        mixin = J.$index$asx($arguments, 0).assertMixin$1("mixin"),
+        _0_0 = mixin.callable;
+      $label0$0: {
+        _0_2_isSet = type$.AsyncBuiltInCallable_2._is(_0_0);
+        if (_0_2_isSet) {
+          _0_2 = _0_0.get$acceptsContent();
+          acceptsContent = _0_2;
+        } else
+          acceptsContent = null;
+        if (!_0_2_isSet) {
+          _0_2_isSet = _0_0 instanceof A.BuiltInCallable0;
+          if (_0_2_isSet) {
+            _0_2 = _0_0.acceptsContent;
+            acceptsContent = _0_2;
+          }
+          t1 = _0_2_isSet;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = acceptsContent;
+          break $label0$0;
+        }
+        _0_5_isSet = _0_0 instanceof A.UserDefinedCallable0;
+        if (_0_5_isSet) {
+          _0_5 = _0_0.declaration;
+          t1 = _0_5 instanceof A.MixinRule0;
+        } else {
+          _0_5 = null;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = _0_5_isSet ? _0_5 : _0_0.declaration;
+          hasContent = type$.MixinRule_2._as(t1).get$hasContent();
+          t1 = hasContent;
+          break $label0$0;
+        }
+        t1 = A.throwExpression(A.UnsupportedError$("Unknown callable type " + mixin.toString$0(0) + "."));
+      }
+      return t1 ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A.mixinClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassMixin", new A.mixinClass__closure()));
+      A.JSClassExtension_injectSuperclass(t1._as(new A.SassMixin0(A.BuiltInCallable$function0("f", "", new A.mixinClass__closure0(), null)).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.mixinClass__closure.prototype = {
+    call$1($self) {
+      A.jsThrow(new self.Error("It is not possible to construct a SassMixin through the JavaScript API"));
+    },
+    $signature: 504
+  };
+  A.mixinClass__closure0.prototype = {
+    call$1(_) {
+      return B.C__SassNull0;
+    },
+    $signature: 3
+  };
+  A.SassMixin0.prototype = {
+    accept$1$1(visitor) {
+      var t1, t2;
+      if (!visitor._serialize0$_inspect)
+        A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " isn't a valid CSS value.", null));
+      t1 = visitor._serialize0$_buffer;
+      t1.write$1(0, "get-mixin(");
+      t2 = this.callable;
+      visitor._serialize0$_visitQuotedString$1(t2.get$name(t2));
+      t1.writeCharCode$1(41);
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertMixin$1($name) {
+      return this;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassMixin0 && this.callable.$eq(0, other.callable);
+    },
+    get$hashCode(_) {
+      var t1 = this.callable;
+      return t1.get$hashCode(t1);
+    }
+  };
+  A.MixinRule0.prototype = {
+    get$hasContent() {
+      var result, _this = this,
+        value = _this._mixin_rule$__MixinRule_hasContent_FI;
+      if (value === $) {
+        result = J.$eq$(B.C__HasContentVisitor0.visitChildren$1(_this.children), true);
+        _this._mixin_rule$__MixinRule_hasContent_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this._mixin_rule$__MixinRule_hasContent_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitMixinRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = "@mixin " + this.name,
+        t2 = this.$arguments;
+      if (!(t2.$arguments.length === 0 && t2.restArgument == null))
+        t1 += "(" + t2.toString$0(0) + ")";
+      t2 = this.children;
+      t2 = t1 + (" {" + (t2 && B.JSArray_methods).join$1(t2, " ") + "}");
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    }
+  };
+  A._HasContentVisitor0.prototype = {
+    visitContentRule$1(_) {
+      return true;
+    }
+  };
+  A.__HasContentVisitor_Object_StatementSearchVisitor0.prototype = {};
+  A.ExtendMode0.prototype = {
+    _enumToString$0() {
+      return "ExtendMode." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.JSModule0.prototype = {};
+  A.JSModuleRequire0.prototype = {};
+  A.MultiSpan0.prototype = {
+    get$start(_) {
+      var t1 = this._multi_span0$_primary;
+      return t1.get$start(t1);
+    },
+    get$end(_) {
+      var t1 = this._multi_span0$_primary;
+      return t1.get$end(t1);
+    },
+    get$text() {
+      return this._multi_span0$_primary.get$text();
+    },
+    get$context(_) {
+      var t1 = this._multi_span0$_primary;
+      return t1.get$context(t1);
+    },
+    get$file(_) {
+      var t1 = this._multi_span0$_primary;
+      return t1.get$file(t1);
+    },
+    get$length(_) {
+      var t1 = this._multi_span0$_primary;
+      return t1.get$length(t1);
+    },
+    get$sourceUrl(_) {
+      var t1 = this._multi_span0$_primary;
+      return t1.get$sourceUrl(t1);
+    },
+    compareTo$1(_, other) {
+      return this._multi_span0$_primary.compareTo$1(0, other);
+    },
+    toString$0(_) {
+      return this._multi_span0$_primary.toString$0(0);
+    },
+    expand$1(_, other) {
+      return new A.MultiSpan0(this._multi_span0$_primary.expand$1(0, other), this.primaryLabel, this.secondarySpans);
+    },
+    highlight$1$color(color) {
+      return A.Highlighter$multiple(this._multi_span0$_primary, this.primaryLabel, this.secondarySpans, color === true, null, null).highlight$0();
+    },
+    message$2$color(_, message, color) {
+      var t1 = J.$eq$(color, true) || typeof color == "string",
+        t2 = typeof color == "string" ? color : null;
+      return A.SourceSpanExtension_messageMultiple(this._multi_span0$_primary, message, this.primaryLabel, this.secondarySpans, t1, t2, null);
+    },
+    message$1(_, message) {
+      return this.message$2$color(0, message, null);
+    },
+    $isComparable: 1,
+    $isFileSpan: 1,
+    $isSourceSpan: 1,
+    $isSourceSpanWithContext: 1
+  };
+  A.SupportsNegation0.prototype = {
+    toString$0(_) {
+      var t1 = this.condition;
+      if (t1 instanceof A.SupportsNegation0 || t1 instanceof A.SupportsOperation0)
+        return "not (" + t1.toString$0(0) + ")";
+      else
+        return "not " + t1.toString$0(0);
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.NoOpImporter0.prototype = {
+    canonicalize$1(_, url) {
+      return null;
+    },
+    load$1(_, url) {
+      return null;
+    },
+    toString$0(_) {
+      return "(unknown)";
+    }
+  };
+  A.NoSourceMapBuffer0.prototype = {
+    get$length(_) {
+      return this._no_source_map_buffer0$_buffer._contents.length;
+    },
+    forSpan$1$2(span, callback) {
+      return callback.call$0();
+    },
+    forSpan$2(span, callback) {
+      return this.forSpan$1$2(span, callback, type$.dynamic);
+    },
+    write$1(_, object) {
+      var t1 = this._no_source_map_buffer0$_buffer,
+        t2 = A.S(object);
+      t1._contents += t2;
+      return null;
+    },
+    writeCharCode$1(charCode) {
+      var t1 = this._no_source_map_buffer0$_buffer,
+        t2 = A.Primitives_stringFromCharCode(charCode);
+      t1._contents += t2;
+      return null;
+    },
+    toString$0(_) {
+      var t1 = this._no_source_map_buffer0$_buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    buildSourceMap$1$prefix(prefix) {
+      return A.throwExpression(A.UnsupportedError$(string$.NoSour));
+    }
+  };
+  A._FakeAstNode0.prototype = {
+    get$span(_) {
+      return this._node0$_callback.call$0();
+    },
+    $isAstNode0: 1
+  };
+  A.CssNode0.prototype = {
+    toString$0(_) {
+      return A.serialize0(this, true, null, true, null, false, null, true)._0;
+    },
+    $isAstNode0: 1
+  };
+  A.CssParentNode0.prototype = {};
+  A._IsInvisibleVisitor1.prototype = {
+    visitCssAtRule$1(rule) {
+      return false;
+    },
+    visitCssComment$1(comment) {
+      return this.includeComments && comment.text.charCodeAt(2) !== 33;
+    },
+    visitCssStyleRule$1(rule) {
+      var t1 = rule._style_rule0$_selector._box0$_inner;
+      return (this.includeBogus ? t1.value.accept$1(B._IsInvisibleVisitor_true0) : t1.value.accept$1(B._IsInvisibleVisitor_false0)) || this.super$EveryCssVisitor$visitCssStyleRule0(rule);
+    }
+  };
+  A.__IsInvisibleVisitor_Object_EveryCssVisitor0.prototype = {};
+  A.ModifiableCssNode0.prototype = {
+    get$hasFollowingSibling() {
+      var t2,
+        t1 = this._node$_parent;
+      if (t1 == null)
+        t1 = null;
+      else {
+        t1 = t1.children;
+        t2 = this._node$_indexInParent;
+        t2.toString;
+        t1 = A.SubListIterable$(t1, t2 + 1, null, t1.$ti._eval$1("ListBase.E")).any$1(0, new A.ModifiableCssNode_hasFollowingSibling_closure0());
+      }
+      return t1 === true;
+    },
+    get$isGroupEnd() {
+      return this.isGroupEnd;
+    }
+  };
+  A.ModifiableCssNode_hasFollowingSibling_closure0.prototype = {
+    call$1(sibling) {
+      return !sibling.accept$1(B._IsInvisibleVisitor_true_false0);
+    },
+    $signature: 108
+  };
+  A.ModifiableCssParentNode0.prototype = {
+    get$isChildless() {
+      return false;
+    },
+    addChild$1(child) {
+      var t1;
+      child._node$_parent = this;
+      t1 = this._node$_children;
+      child._node$_indexInParent = t1.length;
+      t1.push(child);
+    },
+    clearChildren$0() {
+      var t1, t2, _i, child;
+      for (t1 = this._node$_children, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        child = t1[_i];
+        child._node$_indexInParent = child._node$_parent = null;
+      }
+      B.JSArray_methods.clear$0(t1);
+    },
+    $isCssParentNode0: 1,
+    get$children(receiver) {
+      return this.children;
+    }
+  };
+  A.NodePackageImporter0.prototype = {
+    isNonCanonicalScheme$1(scheme) {
+      return scheme === "pkg";
+    },
+    canonicalize$1(_, url) {
+      var packageName, jsonPath, jsonString, packageManifest, e, t1, t2, t3, t4, baseDirectory, parts, t5, $name, subpath, packageRoot, exception, _1_0, rootPath, subpathInRoot, _this = this, _null = null;
+      if (url.get$scheme() === "file")
+        return $.$get$FilesystemImporter_cwd0().canonicalize$1(0, url);
+      if (url.get$scheme() !== "pkg")
+        return _null;
+      if (url.get$hasAuthority())
+        throw A.wrapException(string$.A_pkg_h);
+      else {
+        t1 = $.$get$url();
+        t2 = t1.style;
+        if (t2.rootLength$1(url.get$path(url)) > 0)
+          throw A.wrapException("A pkg: URL's path must not begin with /.");
+        else if (url.get$path(url).length === 0)
+          throw A.wrapException("A pkg: URL must not have an empty path.");
+        else if (url.get$hasQuery() || url.get$hasFragment())
+          throw A.wrapException(string$.A_pkg_q);
+      }
+      t3 = A.canonicalizeContext0();
+      t3._canonicalize_context$_wasContainingUrlAccessed = true;
+      t3 = t3._canonicalize_context$_containingUrl;
+      if ((t3 == null ? _null : t3.get$scheme()) === "file") {
+        t3 = A.canonicalizeContext0();
+        t3._canonicalize_context$_wasContainingUrlAccessed = true;
+        t3 = t3._canonicalize_context$_containingUrl;
+        t3.toString;
+        t4 = $.$get$context();
+        baseDirectory = t4.dirname$1(t4.style.pathFromUri$1(A._parseUri(t3)));
+      } else {
+        t3 = _this._node_package$__NodePackageImporter__entryPointDirectory_F;
+        t3 === $ && A.throwUnnamedLateFieldNI();
+        baseDirectory = t3;
+      }
+      packageName = null;
+      parts = t1.split$1(0, url.get$path(url));
+      t3 = B.JSArray_methods.removeAt$1(parts, 0);
+      t4 = $.$get$context();
+      t3.toString;
+      t5 = t4.style;
+      $name = t5.pathFromUri$1(A._parseUri(t3));
+      if (B.JSString_methods.startsWith$1($name, "@"))
+        $name = parts.length !== 0 ? t1.join$2(0, $name, B.JSArray_methods.removeAt$1(parts, 0)) : $name;
+      subpath = parts.length !== 0 ? t5.pathFromUri$1(A._parseUri(t1.joinAll$1(parts))) : _null;
+      packageName = $name;
+      if (!J.startsWith$1$s(packageName, "."))
+        if (!J.contains$1$asx(packageName, "\\"))
+          if (!J.contains$1$asx(packageName, "%"))
+            t1 = J.startsWith$1$s(packageName, "@") && !J.contains$1$asx(packageName, t2.get$separator(t2));
+          else
+            t1 = true;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      if (t1)
+        return _null;
+      packageRoot = _this._node_package$_resolvePackageRoot$2(packageName, baseDirectory);
+      if (packageRoot == null)
+        return _null;
+      jsonPath = A.join(packageRoot, "package.json", _null);
+      jsonString = A.readFile0(jsonPath);
+      packageManifest = null;
+      try {
+        packageManifest = type$.Map_String_dynamic._as(B.C_JsonCodec.decode$1(jsonString));
+      } catch (exception) {
+        e = A.unwrapException(exception);
+        t1 = A.S(jsonPath);
+        t2 = A.S(packageName);
+        t3 = A.S(e);
+        throw A.wrapException("Failed to parse " + t1 + ' for "pkg:' + t2 + '": ' + t3);
+      }
+      _1_0 = _this._node_package$_resolvePackageExports$4(packageRoot, subpath, packageManifest, packageName);
+      if (_1_0 != null)
+        if (B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(_1_0, t5)._splitExtension$1(1)[1]))
+          return t4.toUri$1(t4.canonicalize$1(0, _1_0));
+        else {
+          t1 = subpath == null ? "root" : subpath;
+          throw A.wrapException("The export for '" + t1 + "' in '" + A.S(packageName) + "' resolved to '" + _1_0 + string$.x27x2c_whi);
+        }
+      if (subpath == null) {
+        rootPath = _this._node_package$_resolvePackageRootValues$2(packageRoot, packageManifest);
+        return rootPath != null ? t4.toUri$1(t4.canonicalize$1(0, rootPath)) : _null;
+      }
+      subpathInRoot = A.join(packageRoot, subpath, _null);
+      return $.$get$FilesystemImporter_cwd0().canonicalize$1(0, t4.toUri$1(subpathInRoot));
+    },
+    load$1(_, url) {
+      return $.$get$FilesystemImporter_cwd0().load$1(0, url);
+    },
+    _node_package$_resolvePackageRoot$2(packageName, baseDirectory) {
+      var potentialPackage, t1;
+      for (; true;) {
+        potentialPackage = A.join(baseDirectory, "node_modules", packageName);
+        if (A.dirExists0(potentialPackage))
+          return potentialPackage;
+        t1 = $.$get$context();
+        if (t1.split$1(0, baseDirectory).length === 1)
+          return null;
+        baseDirectory = t1.dirname$1(baseDirectory);
+      }
+    },
+    _node_package$_resolvePackageRootValues$2(packageRoot, packageManifest) {
+      var t1, sassValue, _1_0, styleValue, _null = null,
+        _0_0 = packageManifest.$index(0, "sass");
+      if (typeof _0_0 == "string") {
+        t1 = B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(_0_0, $.$get$url().style)._splitExtension$1(1)[1]);
+        sassValue = _0_0;
+      } else {
+        sassValue = _null;
+        t1 = false;
+      }
+      if (t1)
+        return A.join(packageRoot, sassValue, _null);
+      else {
+        _1_0 = packageManifest.$index(0, "style");
+        if (typeof _1_0 == "string") {
+          t1 = B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(_1_0, $.$get$url().style)._splitExtension$1(1)[1]);
+          styleValue = _1_0;
+        } else {
+          styleValue = _null;
+          t1 = false;
+        }
+        if (t1)
+          return A.join(packageRoot, styleValue, _null);
+      }
+      return A.resolveImportPath0(A.join(packageRoot, "index", _null));
+    },
+    _node_package$_resolvePackageExports$4(packageRoot, subpath, packageManifest, packageName) {
+      var _0_0, _1_0, _this = this,
+        exports = packageManifest.$index(0, "exports");
+      if (exports == null)
+        return null;
+      _0_0 = _this._node_package$_nodePackageExportsResolve$5(packageRoot, _this._node_package$_exportsToCheck$1(subpath), exports, subpath, packageName);
+      if (_0_0 != null)
+        return _0_0;
+      if (subpath != null && A.ParsedPath_ParsedPath$parse(subpath, $.$get$url().style)._splitExtension$1(1)[1].length !== 0)
+        return null;
+      _1_0 = _this._node_package$_nodePackageExportsResolve$5(packageRoot, _this._node_package$_exportsToCheck$2$addIndex(subpath, true), exports, subpath, packageName);
+      if (_1_0 != null)
+        return _1_0;
+      return null;
+    },
+    _node_package$_nodePackageExportsResolve$5(packageRoot, subpathVariants, exports, subpath, packageName) {
+      var t1, matches, _1_1, path;
+      if (type$.Map_String_dynamic._is(exports) && J.any$1$ax(exports.get$keys(exports), new A.NodePackageImporter__nodePackageExportsResolve_closure3()) && J.any$1$ax(exports.get$keys(exports), new A.NodePackageImporter__nodePackageExportsResolve_closure4()))
+        throw A.wrapException("`exports` in " + packageName + string$.x20can_n + J.map$1$1$ax(J.get$keys$z(exports), new A.NodePackageImporter__nodePackageExportsResolve_closure5(), type$.String).join$1(0, ",") + " in " + A.join(packageRoot, "package.json", null) + ".");
+      t1 = A.IterableNullableExtension_whereNotNull(new A.MappedListIterable(subpathVariants, new A.NodePackageImporter__nodePackageExportsResolve_closure6(this, exports, packageRoot), A._arrayInstanceType(subpathVariants)._eval$1("MappedListIterable<1,String?>")), type$.String);
+      matches = A.List_List$of(t1, true, t1.$ti._eval$1("Iterable.E"));
+      $label0$1: {
+        _1_1 = matches.length;
+        if (_1_1 === 1) {
+          path = matches[0];
+          t1 = path;
+          break $label0$1;
+        }
+        if (_1_1 <= 0) {
+          t1 = null;
+          break $label0$1;
+        }
+        t1 = subpath == null ? "root" : subpath;
+        t1 = A.throwExpression(string$.Unable + t1 + " in " + packageName + " should be used. \n\nFound:\n" + B.JSArray_methods.join$1(matches, "\n"));
+      }
+      return t1;
+    },
+    _node_package$_compareExpansionKeys$2(keyA, keyB) {
+      var t1 = B.JSString_methods.contains$1(keyA, "*"),
+        baseLengthA = t1 ? B.JSString_methods.indexOf$1(keyA, "*") + 1 : keyA.length,
+        t2 = B.JSString_methods.contains$1(keyB, "*"),
+        baseLengthB = t2 ? B.JSString_methods.indexOf$1(keyB, "*") + 1 : keyB.length;
+      if (baseLengthA > baseLengthB)
+        return -1;
+      if (baseLengthB > baseLengthA)
+        return 1;
+      if (!t1)
+        return 1;
+      if (!t2)
+        return -1;
+      t1 = keyA.length;
+      t2 = keyB.length;
+      if (t1 > t2)
+        return -1;
+      if (t2 > t1)
+        return 1;
+      return 0;
+    },
+    _node_package$_packageTargetResolve$4(subpath, exports, packageRoot, patternMatch) {
+      var t2, string, path, map, key, value, _1_0, array, _2_0, _null = null,
+        t1 = typeof exports == "string";
+      if (t1) {
+        t2 = !B.JSString_methods.startsWith$1(exports, "./");
+        string = exports;
+      } else {
+        string = _null;
+        t2 = false;
+      }
+      if (t2)
+        throw A.wrapException("Export '" + A.S(string) + string$.x27x20must + packageRoot + "'.");
+      if (t1) {
+        t2 = patternMatch != null;
+        string = exports;
+      } else {
+        string = _null;
+        t2 = false;
+      }
+      if (t2) {
+        t1 = J.replaceFirst$2$s(string, "*", patternMatch);
+        t2 = $.$get$context();
+        path = t2.normalize$1(A.join(packageRoot, t2.style.pathFromUri$1(A._parseUri(t1)), _null));
+        return A.fileExists0(path) ? path : _null;
+      }
+      string = t1 ? exports : _null;
+      if (t1) {
+        t1 = $.$get$context();
+        string.toString;
+        return A.join(packageRoot, t1.style.pathFromUri$1(A._parseUri(string)), _null);
+      }
+      t1 = type$.Map_String_dynamic._is(exports);
+      map = t1 ? exports : _null;
+      if (t1) {
+        for (t1 = A.MapExtensions_get_pairs(map, type$.String, type$.dynamic), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+          t2 = t1.get$current(t1);
+          key = t2._0;
+          value = t2._1;
+          if (!B.Set_TnQrk.contains$1(0, key))
+            continue;
+          if (value == null)
+            continue;
+          _1_0 = this._node_package$_packageTargetResolve$4(subpath, value, packageRoot, patternMatch);
+          if (_1_0 != null)
+            return _1_0;
+        }
+        return _null;
+      }
+      if (type$.List_nullable_Object._is(exports) && J.get$length$asx(exports) <= 0)
+        return _null;
+      t1 = type$.List_dynamic._is(exports);
+      array = t1 ? exports : _null;
+      if (t1) {
+        for (t1 = J.get$iterator$ax(array); t1.moveNext$0();) {
+          value = t1.get$current(t1);
+          if (value == null)
+            continue;
+          _2_0 = this._node_package$_packageTargetResolve$4(subpath, value, packageRoot, patternMatch);
+          if (_2_0 != null)
+            return _2_0;
+        }
+        return _null;
+      }
+      throw A.wrapException("Invalid 'exports' value " + A.S(exports) + " in " + A.join(packageRoot, "package.json", _null) + ".");
+    },
+    _node_package$_packageTargetResolve$3(subpath, exports, packageRoot) {
+      return this._node_package$_packageTargetResolve$4(subpath, exports, packageRoot, null);
+    },
+    _node_package$_getMainExport$1(exports) {
+      var t1, t2, map, _0_4, $export;
+      $label0$0: {
+        if (typeof exports == "string") {
+          t1 = exports;
+          break $label0$0;
+        }
+        if (type$.List_String._is(exports)) {
+          t1 = exports;
+          break $label0$0;
+        }
+        t1 = type$.Map_String_dynamic._is(exports);
+        if (t1) {
+          t2 = !J.any$1$ax(exports.get$keys(exports), new A.NodePackageImporter__getMainExport_closure0());
+          map = exports;
+        } else {
+          map = null;
+          t2 = false;
+        }
+        if (t2) {
+          t1 = map;
+          break $label0$0;
+        }
+        if (t1) {
+          _0_4 = exports.$index(0, ".");
+          if (_0_4 == null)
+            t2 = exports.containsKey$1(".");
+          else
+            t2 = true;
+          if (t2)
+            t2 = _0_4 != null;
+          else
+            t2 = false;
+        } else {
+          _0_4 = null;
+          t2 = false;
+        }
+        if (t2) {
+          $export = t1 ? _0_4 : J.$index$asx(exports, ".");
+          t1 = $export;
+          break $label0$0;
+        }
+        t1 = null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _node_package$_exportsToCheck$2$addIndex(subpath, addIndex) {
+      var basename, dirname, t3, t4, _i, path,
+        t1 = type$.JSArray_String,
+        paths = A._setArrayType([], t1),
+        t2 = subpath == null;
+      if (t2 && addIndex)
+        subpath = "index";
+      else if (!t2 && addIndex)
+        subpath = A.join(subpath, "index", null);
+      if (subpath == null)
+        return A._setArrayType([null], type$.JSArray_nullable_String);
+      if (B.Set_0.contains$1(0, A.ParsedPath_ParsedPath$parse(subpath, $.$get$url().style)._splitExtension$1(1)[1]))
+        paths.push(subpath);
+      else
+        B.JSArray_methods.addAll$1(paths, A._setArrayType([subpath, subpath + ".scss", subpath + ".sass", subpath + ".css"], t1));
+      t1 = $.$get$context();
+      t2 = t1.style;
+      basename = A.ParsedPath_ParsedPath$parse(subpath, t2).get$basename();
+      dirname = t1.dirname$1(subpath);
+      if (B.JSString_methods.startsWith$1(basename, "_"))
+        return paths;
+      t1 = A.List_List$of(paths, true, type$.nullable_String);
+      for (t3 = paths.length, t4 = dirname === ".", _i = 0; _i < paths.length; paths.length === t3 || (0, A.throwConcurrentModificationError)(paths), ++_i) {
+        path = paths[_i];
+        if (t4)
+          t1.push("_" + A.ParsedPath_ParsedPath$parse(path, t2).get$basename());
+        else
+          t1.push(A.join(dirname, "_" + A.ParsedPath_ParsedPath$parse(path, t2).get$basename(), null));
+      }
+      return t1;
+    },
+    _node_package$_exportsToCheck$1(subpath) {
+      return this._node_package$_exportsToCheck$2$addIndex(subpath, false);
+    }
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure3.prototype = {
+    call$1(key) {
+      return B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure4.prototype = {
+    call$1(key) {
+      return !B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure5.prototype = {
+    call$1(key) {
+      return '"' + key + '"';
+    },
+    $signature: 5
+  };
+  A.NodePackageImporter__nodePackageExportsResolve_closure6.prototype = {
+    call$1(variant) {
+      var t1, matchKey, t2, t3, t4, t5, t6, _i, expansionKey, _0_0, t7, patternBase, patternTrailer, t8, target, _this = this, _null = null;
+      if (variant == null) {
+        t1 = _this.$this;
+        return A.NullableExtension_andThen(t1._node_package$_getMainExport$1(_this.exports), new A.NodePackageImporter__nodePackageExportsResolve__closure1(t1, variant, _this.packageRoot));
+      } else {
+        t1 = _this.exports;
+        if (!type$.Map_String_dynamic._is(t1) || J.every$1$ax(t1.get$keys(t1), new A.NodePackageImporter__nodePackageExportsResolve__closure2()))
+          return _null;
+      }
+      matchKey = "./" + $.$get$context().toUri$1(variant).toString$0(0);
+      if (t1.containsKey$1(matchKey) && J.$index$asx(t1, matchKey) != null && !B.JSString_methods.contains$1(matchKey, "*")) {
+        t1 = J.$index$asx(t1, matchKey);
+        if (t1 == null)
+          t1 = type$.Object._as(t1);
+        return _this.$this._node_package$_packageTargetResolve$3(matchKey, t1, _this.packageRoot);
+      }
+      t2 = A._setArrayType([], type$.JSArray_String);
+      for (t3 = J.getInterceptor$z(t1), t4 = J.get$iterator$ax(t3.get$keys(t1)); t4.moveNext$0();) {
+        t5 = t4.get$current(t4);
+        if (B.JSString_methods.allMatches$1("*", t5).get$length(0) === 1)
+          t2.push(t5);
+      }
+      t4 = _this.$this;
+      B.JSArray_methods.sort$1(t2, t4.get$_node_package$_compareExpansionKeys());
+      for (t5 = t2.length, t6 = matchKey.length, _i = 0; _i < t2.length; t2.length === t5 || (0, A.throwConcurrentModificationError)(t2), ++_i) {
+        expansionKey = t2[_i];
+        _0_0 = expansionKey.split("*");
+        t7 = _0_0.length === 2;
+        if (t7) {
+          patternBase = _0_0[0];
+          patternTrailer = _0_0[1];
+          patternTrailer = patternTrailer;
+        } else {
+          patternTrailer = _null;
+          patternBase = patternTrailer;
+        }
+        if (!t7)
+          throw A.wrapException(A.StateError$("Pattern matching error"));
+        if (!B.JSString_methods.startsWith$1(matchKey, patternBase))
+          continue;
+        if (matchKey === patternBase)
+          continue;
+        t7 = patternTrailer.length;
+        if (t7 !== 0)
+          t8 = B.JSString_methods.endsWith$1(matchKey, patternTrailer) && t6 >= expansionKey.length;
+        else
+          t8 = true;
+        if (t8) {
+          target = t3.$index(t1, expansionKey);
+          if (target == null)
+            continue;
+          return t4._node_package$_packageTargetResolve$4(variant, target, _this.packageRoot, B.JSString_methods.substring$2(matchKey, patternBase.length, t6 - t7));
+        }
+      }
+      return _null;
+    },
+    $signature: 144
+  };
+  A.NodePackageImporter__nodePackageExportsResolve__closure1.prototype = {
+    call$1(mainExport) {
+      return this.$this._node_package$_packageTargetResolve$3(this.variant, mainExport, this.packageRoot);
+    },
+    $signature: 145
+  };
+  A.NodePackageImporter__nodePackageExportsResolve__closure2.prototype = {
+    call$1(key) {
+      return !B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NodePackageImporter__getMainExport_closure0.prototype = {
+    call$1(key) {
+      return B.JSString_methods.startsWith$1(key, ".");
+    },
+    $signature: 4
+  };
+  A.NullExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitNullExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "null";
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.legacyNullClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.types.Null", new A.legacyNullClass__closure()));
+      jsClass.NULL = B.C__SassNull0;
+      A.JSClassExtension_injectSuperclass(t1._as(B.C__SassNull0.constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.legacyNullClass__closure.prototype = {
+    call$2(_, __) {
+      throw A.wrapException("new sass.types.Null() isn't allowed. Use sass.types.Null.NULL instead.");
+    },
+    call$1(_) {
+      return this.call$2(_, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 213
+  };
+  A._SassNull0.prototype = {
+    get$isTruthy() {
+      return false;
+    },
+    get$isBlank() {
+      return true;
+    },
+    get$realNull() {
+      return null;
+    },
+    accept$1$1(visitor) {
+      if (visitor._serialize0$_inspect)
+        visitor._serialize0$_buffer.write$1(0, "null");
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unaryNot$0() {
+      return B.SassBoolean_true0;
+    }
+  };
+  A.NumberExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitNumberExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return A.serializeValue0(A.SassNumber_SassNumber0(this.value, this.unit), true, true);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.numberClass_closure.prototype = {
+    call$0() {
+      var t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassNumber", new A.numberClass__closure())),
+        t2 = type$.String,
+        t3 = type$.Function;
+      A.LinkedHashMap_LinkedHashMap$_literal(["value", new A.numberClass__closure0(), "isInt", new A.numberClass__closure1(), "asInt", new A.numberClass__closure2(), "numeratorUnits", new A.numberClass__closure3(), "denominatorUnits", new A.numberClass__closure4(), "hasUnits", new A.numberClass__closure5()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      A.LinkedHashMap_LinkedHashMap$_literal(["assertInt", new A.numberClass__closure6(), "assertInRange", new A.numberClass__closure7(), "assertNoUnits", new A.numberClass__closure8(), "assertUnit", new A.numberClass__closure9(), "hasUnit", new A.numberClass__closure10(), "compatibleWithUnit", new A.numberClass__closure11(), "convert", new A.numberClass__closure12(), "convertToMatch", new A.numberClass__closure13(), "convertValue", new A.numberClass__closure14(), "convertValueToMatch", new A.numberClass__closure15(), "coerce", new A.numberClass__closure16(), "coerceToMatch", new A.numberClass__closure17(), "coerceValue", new A.numberClass__closure18(), "coerceValueToMatch", new A.numberClass__closure19()], t2, t3).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      A.JSClassExtension_injectSuperclass(t1._as(self.Object.getPrototypeOf(J.get$$prototype$x(t1._as(A.SassNumber_SassNumber0(0, null).constructor))).constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.numberClass__closure.prototype = {
+    call$3($self, value, unitOrOptions) {
+      var t1, t2, _null = null;
+      if (typeof unitOrOptions == "string")
+        return A.SassNumber_SassNumber0(value, unitOrOptions);
+      type$.nullable__ConstructorOptions_2._as(unitOrOptions);
+      t1 = unitOrOptions == null;
+      if (t1)
+        t2 = _null;
+      else {
+        t2 = A.NullableExtension_andThen0(J.get$numeratorUnits$x(unitOrOptions), A.immutable__jsToDartList$closure());
+        t2 = t2 == null ? _null : J.cast$1$0$ax(t2, type$.String);
+      }
+      if (t1)
+        t1 = _null;
+      else {
+        t1 = A.NullableExtension_andThen0(J.get$denominatorUnits$x(unitOrOptions), A.immutable__jsToDartList$closure());
+        t1 = t1 == null ? _null : J.cast$1$0$ax(t1, type$.String);
+      }
+      return A.SassNumber_SassNumber$withUnits0(value, t1, t2);
+    },
+    call$2($self, value) {
+      return this.call$3($self, value, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 505
+  };
+  A.numberClass__closure0.prototype = {
+    call$1($self) {
+      return $self._number1$_value;
+    },
+    $signature: 506
+  };
+  A.numberClass__closure1.prototype = {
+    call$1($self) {
+      return A.fuzzyIsInt($self._number1$_value);
+    },
+    $signature: 233
+  };
+  A.numberClass__closure2.prototype = {
+    call$1($self) {
+      return A.fuzzyAsInt0($self._number1$_value);
+    },
+    $signature: 508
+  };
+  A.numberClass__closure3.prototype = {
+    call$1($self) {
+      return new self.immutable.List($self.get$numeratorUnits($self));
+    },
+    $signature: 224
+  };
+  A.numberClass__closure4.prototype = {
+    call$1($self) {
+      return new self.immutable.List($self.get$denominatorUnits($self));
+    },
+    $signature: 224
+  };
+  A.numberClass__closure5.prototype = {
+    call$1($self) {
+      return $self.get$hasUnits();
+    },
+    $signature: 233
+  };
+  A.numberClass__closure6.prototype = {
+    call$2($self, $name) {
+      return $self.assertInt$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 510
+  };
+  A.numberClass__closure7.prototype = {
+    call$4($self, min, max, $name) {
+      return $self.valueInRange$3(min, max, $name);
+    },
+    call$3($self, min, max) {
+      return this.call$4($self, min, max, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 511
+  };
+  A.numberClass__closure8.prototype = {
+    call$2($self, $name) {
+      $self.assertNoUnits$1($name);
+      return $self;
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 512
+  };
+  A.numberClass__closure9.prototype = {
+    call$3($self, unit, $name) {
+      $self.assertUnit$2(unit, $name);
+      return $self;
+    },
+    call$2($self, unit) {
+      return this.call$3($self, unit, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 513
+  };
+  A.numberClass__closure10.prototype = {
+    call$2($self, unit) {
+      return $self.hasUnit$1(unit);
+    },
+    $signature: 223
+  };
+  A.numberClass__closure11.prototype = {
+    call$2($self, unit) {
+      return $self.get$hasUnits() && $self.compatibleWithUnit$1(unit);
+    },
+    $signature: 223
+  };
+  A.numberClass__closure12.prototype = {
+    call$4($self, numeratorUnits, denominatorUnits, $name) {
+      var t1 = self.immutable.isOrderedMap(numeratorUnits) ? J.toArray$0$x(type$.ImmutableList._as(numeratorUnits)) : type$.List_dynamic._as(numeratorUnits),
+        t2 = type$.String;
+      t1 = J.cast$1$0$ax(t1, t2);
+      t2 = J.cast$1$0$ax(self.immutable.isOrderedMap(denominatorUnits) ? J.toArray$0$x(type$.ImmutableList._as(denominatorUnits)) : type$.List_dynamic._as(denominatorUnits), t2);
+      return A.SassNumber_SassNumber$withUnits0($self._number1$_coerceOrConvertValue$4$coerceUnitless$name(t1, t2, false, $name), t2, t1);
+    },
+    call$3($self, numeratorUnits, denominatorUnits) {
+      return this.call$4($self, numeratorUnits, denominatorUnits, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 222
+  };
+  A.numberClass__closure13.prototype = {
+    call$4($self, other, $name, otherName) {
+      return $self.convertToMatch$3(other, $name, otherName);
+    },
+    call$2($self, other) {
+      return this.call$4($self, other, null, null);
+    },
+    call$3($self, other, $name) {
+      return this.call$4($self, other, $name, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 215
+  };
+  A.numberClass__closure14.prototype = {
+    call$4($self, numeratorUnits, denominatorUnits, $name) {
+      var t1 = self.immutable.isOrderedMap(numeratorUnits) ? J.toArray$0$x(type$.ImmutableList._as(numeratorUnits)) : type$.List_dynamic._as(numeratorUnits),
+        t2 = type$.String;
+      t1 = J.cast$1$0$ax(t1, t2);
+      return $self._number1$_coerceOrConvertValue$4$coerceUnitless$name(t1, J.cast$1$0$ax(self.immutable.isOrderedMap(denominatorUnits) ? J.toArray$0$x(type$.ImmutableList._as(denominatorUnits)) : type$.List_dynamic._as(denominatorUnits), t2), false, $name);
+    },
+    call$3($self, numeratorUnits, denominatorUnits) {
+      return this.call$4($self, numeratorUnits, denominatorUnits, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 188
+  };
+  A.numberClass__closure15.prototype = {
+    call$4($self, other, $name, otherName) {
+      return $self.convertValueToMatch$3(other, $name, otherName);
+    },
+    call$2($self, other) {
+      return this.call$4($self, other, null, null);
+    },
+    call$3($self, other, $name) {
+      return this.call$4($self, other, $name, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 204
+  };
+  A.numberClass__closure16.prototype = {
+    call$4($self, numeratorUnits, denominatorUnits, $name) {
+      var t1 = self.immutable.isOrderedMap(numeratorUnits) ? J.toArray$0$x(type$.ImmutableList._as(numeratorUnits)) : type$.List_dynamic._as(numeratorUnits),
+        t2 = type$.String;
+      t1 = J.cast$1$0$ax(t1, t2);
+      return $self.coerce$3(t1, J.cast$1$0$ax(self.immutable.isOrderedMap(denominatorUnits) ? J.toArray$0$x(type$.ImmutableList._as(denominatorUnits)) : type$.List_dynamic._as(denominatorUnits), t2), $name);
+    },
+    call$3($self, numeratorUnits, denominatorUnits) {
+      return this.call$4($self, numeratorUnits, denominatorUnits, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 222
+  };
+  A.numberClass__closure17.prototype = {
+    call$4($self, other, $name, otherName) {
+      return $self.coerceToMatch$3(other, $name, otherName);
+    },
+    call$2($self, other) {
+      return this.call$4($self, other, null, null);
+    },
+    call$3($self, other, $name) {
+      return this.call$4($self, other, $name, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 215
+  };
+  A.numberClass__closure18.prototype = {
+    call$4($self, numeratorUnits, denominatorUnits, $name) {
+      var t1 = self.immutable.isOrderedMap(numeratorUnits) ? J.toArray$0$x(type$.ImmutableList._as(numeratorUnits)) : type$.List_dynamic._as(numeratorUnits),
+        t2 = type$.String;
+      t1 = J.cast$1$0$ax(t1, t2);
+      return $self.coerceValue$3(t1, J.cast$1$0$ax(self.immutable.isOrderedMap(denominatorUnits) ? J.toArray$0$x(type$.ImmutableList._as(denominatorUnits)) : type$.List_dynamic._as(denominatorUnits), t2), $name);
+    },
+    call$3($self, numeratorUnits, denominatorUnits) {
+      return this.call$4($self, numeratorUnits, denominatorUnits, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 188
+  };
+  A.numberClass__closure19.prototype = {
+    call$4($self, other, $name, otherName) {
+      return $self.coerceValueToMatch$3(other, $name, otherName);
+    },
+    call$2($self, other) {
+      return this.call$4($self, other, null, null);
+    },
+    call$3($self, other, $name) {
+      return this.call$4($self, other, $name, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 204
+  };
+  A._ConstructorOptions0.prototype = {};
+  A._NodeSassNumber.prototype = {};
+  A.legacyNumberClass_closure.prototype = {
+    call$4(thisArg, value, unit, dartValue) {
+      var t1;
+      if (dartValue == null) {
+        value.toString;
+        t1 = A._parseNumber(value, unit);
+      } else
+        t1 = dartValue;
+      J.set$dartValue$x(thisArg, t1);
+    },
+    call$2(thisArg, value) {
+      return this.call$4(thisArg, value, null, null);
+    },
+    call$3(thisArg, value, unit) {
+      return this.call$4(thisArg, value, unit, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 519
+  };
+  A.legacyNumberClass_closure0.prototype = {
+    call$1(thisArg) {
+      return J.get$dartValue$x(thisArg)._number1$_value;
+    },
+    $signature: 520
+  };
+  A.legacyNumberClass_closure1.prototype = {
+    call$2(thisArg, value) {
+      var t1 = J.getInterceptor$x(thisArg),
+        t2 = J.get$numeratorUnits$x(t1.get$dartValue(thisArg));
+      t1.set$dartValue(thisArg, A.SassNumber_SassNumber$withUnits0(value, J.get$denominatorUnits$x(t1.get$dartValue(thisArg)), t2));
+    },
+    $signature: 521
+  };
+  A.legacyNumberClass_closure2.prototype = {
+    call$1(thisArg) {
+      var t1 = J.getInterceptor$x(thisArg),
+        t2 = B.JSArray_methods.join$1(J.get$numeratorUnits$x(t1.get$dartValue(thisArg)), "*"),
+        t3 = J.get$denominatorUnits$x(t1.get$dartValue(thisArg)).length === 0 ? "" : "/";
+      return t2 + t3 + B.JSArray_methods.join$1(J.get$denominatorUnits$x(t1.get$dartValue(thisArg)), "*");
+    },
+    $signature: 522
+  };
+  A.legacyNumberClass_closure3.prototype = {
+    call$2(thisArg, unit) {
+      var t1 = J.getInterceptor$x(thisArg);
+      t1.set$dartValue(thisArg, A._parseNumber(t1.get$dartValue(thisArg)._number1$_value, unit));
+    },
+    $signature: 523
+  };
+  A._parseNumber_closure.prototype = {
+    call$1(unit) {
+      return unit.length === 0;
+    },
+    $signature: 4
+  };
+  A._parseNumber_closure0.prototype = {
+    call$1(unit) {
+      return unit.length === 0;
+    },
+    $signature: 4
+  };
+  A.SassNumber0.prototype = {
+    get$unitString() {
+      var _this = this;
+      return _this.get$hasUnits() ? _this._number1$_unitString$2(_this.get$numeratorUnits(_this), _this.get$denominatorUnits(_this)) : "";
+    },
+    accept$1$1(visitor) {
+      return visitor.visitNumber$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    withoutSlash$0() {
+      var _this = this;
+      return _this.asSlash == null ? _this : _this.withValue$1(_this._number1$_value);
+    },
+    assertNumber$1($name) {
+      return this;
+    },
+    assertNumber$0() {
+      return this.assertNumber$1(null);
+    },
+    assertInt$1($name) {
+      var _0_0 = A.fuzzyAsInt0(this._number1$_value);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$0(this.toString$0(0) + " is not an int.", $name));
+    },
+    assertInt$0() {
+      return this.assertInt$1(null);
+    },
+    valueInRange$3(min, max, $name) {
+      var _this = this,
+        _0_0 = A.fuzzyCheckRange0(_this._number1$_value, min, max);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$0("Expected " + _this.toString$0(0) + " to be within " + A.S(min) + _this.get$unitString() + " and " + A.S(max) + _this.get$unitString() + ".", $name));
+    },
+    valueInRangeWithUnit$4(min, max, $name, unit) {
+      var _0_0 = A.fuzzyCheckRange0(this._number1$_value, min, max);
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$0("Expected " + this.toString$0(0) + " to be within " + min + unit + " and " + max + unit + ".", $name));
+    },
+    hasCompatibleUnits$1(other) {
+      var _this = this;
+      if (_this.get$numeratorUnits(_this).length !== other.get$numeratorUnits(other).length)
+        return false;
+      if (_this.get$denominatorUnits(_this).length !== other.get$denominatorUnits(other).length)
+        return false;
+      return _this.isComparableTo$1(other);
+    },
+    assertUnit$2(unit, $name) {
+      if (this.hasUnit$1(unit))
+        return;
+      throw A.wrapException(A.SassScriptException$0("Expected " + this.toString$0(0) + ' to have unit "' + unit + '".', $name));
+    },
+    assertNoUnits$1($name) {
+      if (!this.get$hasUnits())
+        return;
+      throw A.wrapException(A.SassScriptException$0("Expected " + this.toString$0(0) + " to have no units.", $name));
+    },
+    assertNoUnits$0() {
+      return this.assertNoUnits$1(null);
+    },
+    convertToMatch$3(other, $name, otherName) {
+      var t1 = this.convertValueToMatch$3(other, $name, otherName),
+        t2 = other.get$numeratorUnits(other);
+      return A.SassNumber_SassNumber$withUnits0(t1, other.get$denominatorUnits(other), t2);
+    },
+    convertValueToMatch$3(other, $name, otherName) {
+      return this._number1$_coerceOrConvertValue$6$coerceUnitless$name$other$otherName(other.get$numeratorUnits(other), other.get$denominatorUnits(other), false, $name, other, otherName);
+    },
+    convertValueToMatch$1(other) {
+      return this.convertValueToMatch$3(other, null, null);
+    },
+    coerce$3(newNumerators, newDenominators, $name) {
+      return A.SassNumber_SassNumber$withUnits0(this.coerceValue$3(newNumerators, newDenominators, $name), newDenominators, newNumerators);
+    },
+    coerce$2(newNumerators, newDenominators) {
+      return this.coerce$3(newNumerators, newDenominators, null);
+    },
+    coerceValue$3(newNumerators, newDenominators, $name) {
+      return this._number1$_coerceOrConvertValue$4$coerceUnitless$name(newNumerators, newDenominators, true, $name);
+    },
+    coerceValueToUnit$2(unit, $name) {
+      var t1 = type$.JSArray_String;
+      return this.coerceValue$3(A._setArrayType([unit], t1), A._setArrayType([], t1), $name);
+    },
+    coerceValueToUnit$1(unit) {
+      return this.coerceValueToUnit$2(unit, null);
+    },
+    coerceToMatch$3(other, $name, otherName) {
+      var t1 = this.coerceValueToMatch$3(other, $name, otherName),
+        t2 = other.get$numeratorUnits(other);
+      return A.SassNumber_SassNumber$withUnits0(t1, other.get$denominatorUnits(other), t2);
+    },
+    coerceValueToMatch$3(other, $name, otherName) {
+      return this._number1$_coerceOrConvertValue$6$coerceUnitless$name$other$otherName(other.get$numeratorUnits(other), other.get$denominatorUnits(other), true, $name, other, otherName);
+    },
+    coerceValueToMatch$1(other) {
+      return this.coerceValueToMatch$3(other, null, null);
+    },
+    _number1$_coerceOrConvertValue$6$coerceUnitless$name$other$otherName(newNumerators, newDenominators, coerceUnitless, $name, other, otherName) {
+      var t1, otherHasUnits, t2, compatibilityException, oldNumerators, oldDenominators, _this = this, _box_0 = {};
+      if (B.C_ListEquality.equals$2(0, _this.get$numeratorUnits(_this), newNumerators) && B.C_ListEquality.equals$2(0, _this.get$denominatorUnits(_this), newDenominators))
+        return _this._number1$_value;
+      t1 = J.getInterceptor$asx(newNumerators);
+      otherHasUnits = t1.get$isNotEmpty(newNumerators) || J.get$isNotEmpty$asx(newDenominators);
+      if (coerceUnitless)
+        t2 = !_this.get$hasUnits() || !otherHasUnits;
+      else
+        t2 = false;
+      if (t2)
+        return _this._number1$_value;
+      compatibilityException = new A.SassNumber__coerceOrConvertValue_compatibilityException0(_this, other, otherName, otherHasUnits, $name, newNumerators, newDenominators);
+      _box_0.value = _this._number1$_value;
+      t2 = _this.get$numeratorUnits(_this);
+      oldNumerators = A._setArrayType(t2.slice(0), A._arrayInstanceType(t2));
+      for (t1 = t1.get$iterator(newNumerators); t1.moveNext$0();)
+        A.removeFirstWhere0(oldNumerators, new A.SassNumber__coerceOrConvertValue_closure3(_box_0, t1.get$current(t1)), new A.SassNumber__coerceOrConvertValue_closure4(compatibilityException));
+      t1 = _this.get$denominatorUnits(_this);
+      oldDenominators = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      for (t1 = J.get$iterator$ax(newDenominators); t1.moveNext$0();)
+        A.removeFirstWhere0(oldDenominators, new A.SassNumber__coerceOrConvertValue_closure5(_box_0, t1.get$current(t1)), new A.SassNumber__coerceOrConvertValue_closure6(compatibilityException));
+      if (oldNumerators.length !== 0 || oldDenominators.length !== 0)
+        throw A.wrapException(compatibilityException.call$0());
+      return _box_0.value;
+    },
+    _number1$_coerceOrConvertValue$4$coerceUnitless$name(newNumerators, newDenominators, coerceUnitless, $name) {
+      return this._number1$_coerceOrConvertValue$6$coerceUnitless$name$other$otherName(newNumerators, newDenominators, coerceUnitless, $name, null, null);
+    },
+    isComparableTo$1(other) {
+      var exception;
+      if (!this.get$hasUnits() || !other.get$hasUnits())
+        return true;
+      try {
+        this.greaterThan$1(other);
+        return true;
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.SassScriptException0)
+          return false;
+        else
+          throw exception;
+      }
+    },
+    greaterThan$1(other) {
+      if (other instanceof A.SassNumber0)
+        return this._number1$_coerceUnits$2(other, A.number2__fuzzyGreaterThan$closure()) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " > " + other.toString$0(0) + '".', null));
+    },
+    greaterThanOrEquals$1(other) {
+      if (other instanceof A.SassNumber0)
+        return this._number1$_coerceUnits$2(other, A.number2__fuzzyGreaterThanOrEquals$closure()) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " >= " + other.toString$0(0) + '".', null));
+    },
+    lessThan$1(other) {
+      if (other instanceof A.SassNumber0)
+        return this._number1$_coerceUnits$2(other, A.number2__fuzzyLessThan$closure()) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " < " + other.toString$0(0) + '".', null));
+    },
+    lessThanOrEquals$1(other) {
+      if (other instanceof A.SassNumber0)
+        return this._number1$_coerceUnits$2(other, A.number2__fuzzyLessThanOrEquals$closure()) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " <= " + other.toString$0(0) + '".', null));
+    },
+    modulo$1(other) {
+      if (other instanceof A.SassNumber0)
+        return this.withValue$1(this._number1$_coerceUnits$2(other, A.number2__moduloLikeSass$closure()));
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " % " + other.toString$0(0) + '".', null));
+    },
+    plus$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber0)
+        return _this.withValue$1(_this._number1$_coerceUnits$2(other, new A.SassNumber_plus_closure0()));
+      if (!(other instanceof A.SassColor0))
+        return _this.super$Value$plus0(other);
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + _this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+    },
+    minus$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber0)
+        return _this.withValue$1(_this._number1$_coerceUnits$2(other, new A.SassNumber_minus_closure0()));
+      if (!(other instanceof A.SassColor0))
+        return _this.super$Value$minus0(other);
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + _this.toString$0(0) + " - " + other.toString$0(0) + '".', null));
+    },
+    times$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber0) {
+        if (!other.get$hasUnits())
+          return _this.withValue$1(_this._number1$_value * other._number1$_value);
+        return _this.multiplyUnits$3(_this._number1$_value * other._number1$_value, other.get$numeratorUnits(other), other.get$denominatorUnits(other));
+      }
+      throw A.wrapException(A.SassScriptException$0('Undefined operation "' + _this.toString$0(0) + " * " + other.toString$0(0) + '".', null));
+    },
+    dividedBy$1(other) {
+      var _this = this;
+      if (other instanceof A.SassNumber0) {
+        if (!other.get$hasUnits())
+          return _this.withValue$1(_this._number1$_value / other._number1$_value);
+        return _this.multiplyUnits$3(_this._number1$_value / other._number1$_value, other.get$denominatorUnits(other), other.get$numeratorUnits(other));
+      }
+      return _this.super$Value$dividedBy0(other);
+    },
+    unaryPlus$0() {
+      return this;
+    },
+    _number1$_coerceUnits$1$2(other, operation) {
+      var t1, exception;
+      try {
+        t1 = operation.call$2(this._number1$_value, other.coerceValueToMatch$1(this));
+        return t1;
+      } catch (exception) {
+        if (A.unwrapException(exception) instanceof A.SassScriptException0) {
+          this.coerceValueToMatch$1(other);
+          throw exception;
+        } else
+          throw exception;
+      }
+    },
+    _number1$_coerceUnits$2(other, operation) {
+      return this._number1$_coerceUnits$1$2(other, operation, type$.dynamic);
+    },
+    multiplyUnits$3(value, otherNumerators, otherDenominators) {
+      var t1, _0_1, _0_2, _0_3, _0_6, _0_7_isSet, _0_7, _0_9, t2, _0_9_isSet, denominators_case_0, _0_11_isSet, _0_11, _0_13_isSet, _0_10, _0_13, numerators_case_0, t4, t3, numerators_case_1, denominators_case_1, t0, newNumerators, mutableOtherDenominators, _i, numerator, mutableDenominatorUnits, _this = this, _null = null, _box_0 = {};
+      _box_0.value = value;
+      t1 = [_this.get$numeratorUnits(_this), _this.get$denominatorUnits(_this), otherNumerators, otherDenominators];
+      _0_1 = t1[0];
+      _0_2 = t1[1];
+      _0_3 = t1[2];
+      _0_6 = _0_3.length <= 0;
+      _0_7_isSet = _0_6;
+      if (_0_7_isSet) {
+        _0_7 = t1[3];
+        _0_9 = _0_7.length <= 0;
+        t2 = _0_9;
+      } else {
+        _0_7 = _null;
+        _0_9 = _0_7;
+        t2 = false;
+      }
+      _0_9_isSet = _0_7_isSet;
+      denominators_case_0 = _0_2;
+      _0_11_isSet = !t2;
+      if (_0_11_isSet) {
+        _0_11 = _0_1.length <= 0;
+        _0_13_isSet = _0_11;
+        _0_10 = _0_1;
+        if (_0_13_isSet) {
+          _0_13 = _0_2.length <= 0;
+          t2 = _0_13;
+          if (t2) {
+            if (_0_7_isSet)
+              denominators_case_0 = _0_7;
+            else {
+              _0_7 = t1[3];
+              denominators_case_0 = _0_7;
+              _0_7_isSet = true;
+            }
+            numerators_case_0 = _0_3;
+          } else
+            numerators_case_0 = _0_1;
+        } else {
+          numerators_case_0 = _0_1;
+          _0_13 = _null;
+          t2 = false;
+        }
+        _0_1 = _0_10;
+      } else {
+        numerators_case_0 = _0_1;
+        _0_13 = _null;
+        _0_11 = _0_13;
+        _0_13_isSet = false;
+        t2 = true;
+      }
+      if (t2) {
+        t4 = denominators_case_0;
+        t3 = numerators_case_0;
+      } else {
+        t4 = _null;
+        t3 = t4;
+      }
+      if (!t2) {
+        if (_0_11_isSet)
+          t2 = _0_11;
+        else {
+          _0_11 = _0_1.length <= 0;
+          t2 = _0_11;
+        }
+        if (t2) {
+          if (_0_9_isSet)
+            t2 = _0_9;
+          else {
+            if (_0_7_isSet)
+              t2 = _0_7;
+            else {
+              _0_7 = t1[3];
+              t2 = _0_7;
+              _0_7_isSet = true;
+            }
+            _0_9 = t2.length <= 0;
+            t2 = _0_9;
+          }
+          numerators_case_1 = _0_3;
+          denominators_case_1 = _0_2;
+        } else {
+          numerators_case_1 = _null;
+          denominators_case_1 = numerators_case_1;
+          t2 = false;
+        }
+        if (!t2) {
+          if (_0_13_isSet)
+            t2 = _0_13;
+          else {
+            _0_13 = _0_2.length <= 0;
+            t2 = _0_13;
+          }
+          if (t2) {
+            if (_0_6)
+              denominators_case_1 = _0_7_isSet ? _0_7 : t1[3];
+            t1 = _0_6;
+          } else
+            t1 = false;
+          numerators_case_1 = _0_1;
+        } else
+          t1 = true;
+        if (t1) {
+          t1 = !_this._number1$_areAnyConvertible$2(numerators_case_1, denominators_case_1);
+          if (t1) {
+            t3 = denominators_case_1;
+            t2 = numerators_case_1;
+          } else {
+            t2 = t3;
+            t3 = t4;
+          }
+          t0 = t3;
+          t3 = t1;
+          t1 = t2;
+          t2 = t0;
+        } else {
+          t2 = t4;
+          t1 = t3;
+          t3 = false;
+        }
+      } else {
+        t2 = t4;
+        t1 = t3;
+        t3 = true;
+      }
+      if (t3)
+        return A.SassNumber_SassNumber$withUnits0(value, t2, t1);
+      newNumerators = A._setArrayType([], type$.JSArray_String);
+      mutableOtherDenominators = A._setArrayType(otherDenominators.slice(0), A._arrayInstanceType(otherDenominators));
+      for (t1 = _this.get$numeratorUnits(_this), t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        numerator = t1[_i];
+        A.removeFirstWhere0(mutableOtherDenominators, new A.SassNumber_multiplyUnits_closure3(_box_0, numerator), new A.SassNumber_multiplyUnits_closure4(newNumerators, numerator));
+      }
+      t1 = _this.get$denominatorUnits(_this);
+      mutableDenominatorUnits = A._setArrayType(t1.slice(0), A._arrayInstanceType(t1));
+      for (t1 = otherNumerators.length, _i = 0; _i < t1; ++_i) {
+        numerator = otherNumerators[_i];
+        A.removeFirstWhere0(mutableDenominatorUnits, new A.SassNumber_multiplyUnits_closure5(_box_0, numerator), new A.SassNumber_multiplyUnits_closure6(newNumerators, numerator));
+      }
+      t1 = _box_0.value;
+      B.JSArray_methods.addAll$1(mutableDenominatorUnits, mutableOtherDenominators);
+      return A.SassNumber_SassNumber$withUnits0(t1, mutableDenominatorUnits, newNumerators);
+    },
+    _number1$_areAnyConvertible$2(units1, units2) {
+      return B.JSArray_methods.any$1(units1, new A.SassNumber__areAnyConvertible_closure0(units2));
+    },
+    _number1$_unitString$2(numerators, denominators) {
+      var _0_4, _0_6, t1, _0_7, _0_5, _null = null;
+      $label0$0: {
+        _0_4 = J.get$length$asx(numerators) <= 0;
+        if (_0_4) {
+          _0_6 = J.get$length$asx(denominators);
+          t1 = _0_6;
+          _0_7 = t1 <= 0;
+          t1 = _0_7;
+          _0_5 = denominators;
+        } else {
+          _0_5 = _null;
+          _0_6 = _0_5;
+          _0_7 = _0_6;
+          t1 = false;
+        }
+        if (t1) {
+          t1 = "no units";
+          break $label0$0;
+        }
+        if (_0_4)
+          t1 = _0_6 === 1;
+        else
+          t1 = false;
+        if (t1) {
+          t1 = J.$index$asx(_0_4 ? _0_5 : denominators, 0) + "^-1";
+          break $label0$0;
+        }
+        if (_0_4) {
+          t1 = "(" + J.join$1$ax(denominators, "*") + ")^-1";
+          break $label0$0;
+        }
+        _0_6 = J.get$length$asx(denominators);
+        t1 = _0_6;
+        _0_7 = t1 <= 0;
+        t1 = _0_7;
+        if (t1) {
+          t1 = J.join$1$ax(numerators, "*");
+          break $label0$0;
+        }
+        t1 = J.join$1$ax(numerators, "*") + "/" + J.join$1$ax(denominators, "*");
+        break $label0$0;
+      }
+      return t1;
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      if (!(other instanceof A.SassNumber0))
+        return false;
+      if (_this.get$numeratorUnits(_this).length !== other.get$numeratorUnits(other).length || _this.get$denominatorUnits(_this).length !== other.get$denominatorUnits(other).length)
+        return false;
+      if (!_this.get$hasUnits())
+        return A.fuzzyEquals0(_this._number1$_value, other._number1$_value);
+      if (!B.C_ListEquality.equals$2(0, _this._number1$_canonicalizeUnitList$1(_this.get$numeratorUnits(_this)), _this._number1$_canonicalizeUnitList$1(other.get$numeratorUnits(other))) || !B.C_ListEquality.equals$2(0, _this._number1$_canonicalizeUnitList$1(_this.get$denominatorUnits(_this)), _this._number1$_canonicalizeUnitList$1(other.get$denominatorUnits(other))))
+        return false;
+      return A.fuzzyEquals0(_this._number1$_value * _this._number1$_canonicalMultiplier$1(_this.get$numeratorUnits(_this)) / _this._number1$_canonicalMultiplier$1(_this.get$denominatorUnits(_this)), other._number1$_value * _this._number1$_canonicalMultiplier$1(other.get$numeratorUnits(other)) / _this._number1$_canonicalMultiplier$1(other.get$denominatorUnits(other)));
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = _this.hashCache;
+      return t1 == null ? _this.hashCache = A.fuzzyHashCode0(_this._number1$_value * _this._number1$_canonicalMultiplier$1(_this.get$numeratorUnits(_this)) / _this._number1$_canonicalMultiplier$1(_this.get$denominatorUnits(_this))) : t1;
+    },
+    _number1$_canonicalizeUnitList$1(units) {
+      var type,
+        t1 = units.length;
+      if (t1 === 0)
+        return units;
+      if (t1 === 1) {
+        type = $.$get$_typesByUnit0().$index(0, B.JSArray_methods.get$first(units));
+        if (type == null)
+          t1 = units;
+        else {
+          t1 = B.Map_397RH.$index(0, type);
+          t1.toString;
+          t1 = A._setArrayType([B.JSArray_methods.get$first(t1)], type$.JSArray_String);
+        }
+        return t1;
+      }
+      t1 = A._arrayInstanceType(units)._eval$1("MappedListIterable<1,String>");
+      t1 = A.List_List$of(new A.MappedListIterable(units, new A.SassNumber__canonicalizeUnitList_closure0(), t1), true, t1._eval$1("ListIterable.E"));
+      B.JSArray_methods.sort$0(t1);
+      return t1;
+    },
+    _number1$_canonicalMultiplier$1(units) {
+      return B.JSArray_methods.fold$2(units, 1, new A.SassNumber__canonicalMultiplier_closure0(this));
+    },
+    canonicalMultiplierForUnit$1(unit) {
+      var t1,
+        innerMap = B.Map_gQqJO.$index(0, unit);
+      if (innerMap == null)
+        t1 = 1;
+      else {
+        t1 = innerMap.get$values(innerMap);
+        t1 = 1 / t1.get$first(t1);
+      }
+      return t1;
+    },
+    unitSuggestion$2($name, unit) {
+      var t2, t3, result, _this = this,
+        t1 = _this.get$denominatorUnits(_this);
+      t1 = new A.MappedListIterable(t1, new A.SassNumber_unitSuggestion_closure1(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,String>")).join$0(0);
+      t2 = _this.get$numeratorUnits(_this);
+      t2 = new A.MappedListIterable(t2, new A.SassNumber_unitSuggestion_closure2(), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,String>")).join$0(0);
+      t3 = unit == null ? "" : " * 1" + unit;
+      result = "$" + $name + t1 + t2 + t3;
+      return _this.get$numeratorUnits(_this).length === 0 ? result : "calc(" + result + ")";
+    },
+    unitSuggestion$1($name) {
+      return this.unitSuggestion$2($name, null);
+    }
+  };
+  A.SassNumber__coerceOrConvertValue_compatibilityException0.prototype = {
+    call$0() {
+      var t2, t3, message, t4, type, unit, _this = this,
+        t1 = _this.other;
+      if (t1 != null) {
+        t2 = _this.$this;
+        t3 = t2.toString$0(0) + " and";
+        message = new A.StringBuffer(t3);
+        t4 = _this.otherName;
+        if (t4 != null)
+          t3 = message._contents = t3 + (" $" + t4 + ":");
+        t1 = t3 + (" " + t1.toString$0(0) + " have incompatible units");
+        message._contents = t1;
+        if (!t2.get$hasUnits() || !_this.otherHasUnits)
+          message._contents = t1 + " (one has units and the other doesn't)";
+        t1 = message.toString$0(0) + ".";
+        t2 = _this.name;
+        return new A.SassScriptException0(t2 == null ? t1 : "$" + t2 + ": " + t1);
+      } else if (!_this.otherHasUnits) {
+        t1 = "Expected " + _this.$this.toString$0(0) + " to have no units.";
+        t2 = _this.name;
+        return new A.SassScriptException0(t2 == null ? t1 : "$" + t2 + ": " + t1);
+      } else {
+        t1 = _this.newNumerators;
+        t2 = J.getInterceptor$asx(t1);
+        if (t2.get$length(t1) === 1 && J.get$isEmpty$asx(_this.newDenominators)) {
+          type = $.$get$_typesByUnit0().$index(0, t2.get$first(t1));
+          if (type != null) {
+            t1 = _this.$this.toString$0(0);
+            t2 = B.JSArray_methods.contains$1(A._setArrayType([97, 101, 105, 111, 117], type$.JSArray_int), type.charCodeAt(0)) ? "an " + type : "a " + type;
+            t3 = B.Map_397RH.$index(0, type);
+            t3.toString;
+            t3 = "Expected " + t1 + " to have " + t2 + " unit (" + B.JSArray_methods.join$1(t3, ", ") + ").";
+            t2 = _this.name;
+            return new A.SassScriptException0(t2 == null ? t3 : "$" + t2 + ": " + t3);
+          }
+        }
+        t3 = _this.newDenominators;
+        unit = A.pluralize0("unit", t2.get$length(t1) + J.get$length$asx(t3), null);
+        t2 = _this.$this;
+        t3 = "Expected " + t2.toString$0(0) + " to have " + unit + " " + t2._number1$_unitString$2(t1, t3) + ".";
+        t1 = _this.name;
+        return new A.SassScriptException0(t1 == null ? t3 : "$" + t1 + ": " + t3);
+      }
+    },
+    $signature: 524
+  };
+  A.SassNumber__coerceOrConvertValue_closure3.prototype = {
+    call$1(oldNumerator) {
+      var factor = A.conversionFactor0(this.newNumerator, oldNumerator);
+      if (factor == null)
+        return false;
+      this._box_0.value *= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber__coerceOrConvertValue_closure4.prototype = {
+    call$0() {
+      return A.throwExpression(this.compatibilityException.call$0());
+    },
+    $signature: 0
+  };
+  A.SassNumber__coerceOrConvertValue_closure5.prototype = {
+    call$1(oldDenominator) {
+      var factor = A.conversionFactor0(this.newDenominator, oldDenominator);
+      if (factor == null)
+        return false;
+      this._box_0.value /= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber__coerceOrConvertValue_closure6.prototype = {
+    call$0() {
+      return A.throwExpression(this.compatibilityException.call$0());
+    },
+    $signature: 0
+  };
+  A.SassNumber_plus_closure0.prototype = {
+    call$2(num1, num2) {
+      return num1 + num2;
+    },
+    $signature: 55
+  };
+  A.SassNumber_minus_closure0.prototype = {
+    call$2(num1, num2) {
+      return num1 - num2;
+    },
+    $signature: 55
+  };
+  A.SassNumber_multiplyUnits_closure3.prototype = {
+    call$1(denominator) {
+      var factor = A.conversionFactor0(this.numerator, denominator);
+      if (factor == null)
+        return false;
+      this._box_0.value /= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber_multiplyUnits_closure4.prototype = {
+    call$0() {
+      return this.newNumerators.push(this.numerator);
+    },
+    $signature: 0
+  };
+  A.SassNumber_multiplyUnits_closure5.prototype = {
+    call$1(denominator) {
+      var factor = A.conversionFactor0(this.numerator, denominator);
+      if (factor == null)
+        return false;
+      this._box_0.value /= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SassNumber_multiplyUnits_closure6.prototype = {
+    call$0() {
+      return this.newNumerators.push(this.numerator);
+    },
+    $signature: 0
+  };
+  A.SassNumber__areAnyConvertible_closure0.prototype = {
+    call$1(unit1) {
+      var t1,
+        _0_0 = B.Map_gQqJO.$index(0, unit1);
+      $label0$0: {
+        if (_0_0 != null) {
+          t1 = B.JSArray_methods.any$1(this.units2, _0_0.get$containsKey());
+          break $label0$0;
+        }
+        t1 = B.JSArray_methods.contains$1(this.units2, unit1);
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 4
+  };
+  A.SassNumber__canonicalizeUnitList_closure0.prototype = {
+    call$1(unit) {
+      var t1,
+        type = $.$get$_typesByUnit0().$index(0, unit);
+      if (type == null)
+        t1 = unit;
+      else {
+        t1 = B.Map_397RH.$index(0, type);
+        t1.toString;
+        t1 = B.JSArray_methods.get$first(t1);
+      }
+      return t1;
+    },
+    $signature: 5
+  };
+  A.SassNumber__canonicalMultiplier_closure0.prototype = {
+    call$2(multiplier, unit) {
+      return multiplier * this.$this.canonicalMultiplierForUnit$1(unit);
+    },
+    $signature: 163
+  };
+  A.SassNumber_unitSuggestion_closure1.prototype = {
+    call$1(unit) {
+      return " * 1" + unit;
+    },
+    $signature: 5
+  };
+  A.SassNumber_unitSuggestion_closure2.prototype = {
+    call$1(unit) {
+      return " / 1" + unit;
+    },
+    $signature: 5
+  };
+  A.SupportsOperation0.prototype = {
+    toString$0(_) {
+      var _this = this;
+      return _this._operation0$_parenthesize$1(_this.left) + " " + _this.operator + " " + _this._operation0$_parenthesize$1(_this.right);
+    },
+    _operation0$_parenthesize$1(condition) {
+      var t1;
+      if (!(condition instanceof A.SupportsNegation0))
+        t1 = condition instanceof A.SupportsOperation0 && condition.operator === this.operator;
+      else
+        t1 = true;
+      return t1 ? "(" + condition.toString$0(0) + ")" : condition.toString$0(0);
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ParentSelector0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitParentSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unify$1(compound) {
+      return A.throwExpression(A.UnsupportedError$("& doesn't support unification."));
+    }
+  };
+  A.ParentStatement0.prototype = {$isAstNode0: 1, $isStatement0: 1};
+  A.ParentStatement_closure0.prototype = {
+    call$1(child) {
+      var t1;
+      $label0$0: {
+        if (child instanceof A.VariableDeclaration0 || child instanceof A.FunctionRule0 || child instanceof A.MixinRule0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (child instanceof A.ImportRule0) {
+          t1 = B.JSArray_methods.any$1(child.imports, new A.ParentStatement__closure0());
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 249
+  };
+  A.ParentStatement__closure0.prototype = {
+    call$1($import) {
+      return $import instanceof A.DynamicImport0;
+    },
+    $signature: 245
+  };
+  A.ParenthesizedExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitParenthesizedExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "(" + this.expression.toString$0(0) + ")";
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.Parser1.prototype = {
+    _parser0$_parseIdentifier$0() {
+      return this.wrapSpanFormatException$1(new A.Parser__parseIdentifier_closure0(this));
+    },
+    whitespace$0() {
+      do
+        this.whitespaceWithoutComments$0();
+      while (this.scanComment$0());
+    },
+    whitespaceWithoutComments$0() {
+      var t3,
+        t1 = this.scanner,
+        t2 = t1.string.length;
+      while (true) {
+        if (t1._string_scanner$_position !== t2) {
+          t3 = t1.peekChar$0();
+          t3 = t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        t1.readChar$0();
+      }
+    },
+    spaces$0() {
+      var t3,
+        t1 = this.scanner,
+        t2 = t1.string.length;
+      while (true) {
+        if (t1._string_scanner$_position !== t2) {
+          t3 = t1.peekChar$0();
+          t3 = t3 === 32 || t3 === 9;
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        t1.readChar$0();
+      }
+    },
+    scanComment$0() {
+      var _0_0,
+        t1 = this.scanner;
+      if (t1.peekChar$0() !== 47)
+        return false;
+      _0_0 = t1.peekChar$1(1);
+      if (47 === _0_0)
+        return this.silentComment$0();
+      if (42 === _0_0) {
+        this.loudComment$0();
+        return true;
+      }
+      return false;
+    },
+    expectWhitespace$0() {
+      var t2, t3,
+        t1 = this.scanner;
+      if (t1._string_scanner$_position !== t1.string.length) {
+        t2 = t1.peekChar$0();
+        t3 = !(t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12 || this.scanComment$0());
+        t2 = t3;
+      } else
+        t2 = true;
+      if (t2)
+        t1.error$1(0, "Expected whitespace.");
+      this.whitespace$0();
+    },
+    silentComment$0() {
+      var t2, t3,
+        t1 = this.scanner;
+      t1.expect$1("//");
+      t2 = t1.string.length;
+      while (true) {
+        if (t1._string_scanner$_position !== t2) {
+          t3 = t1.peekChar$0();
+          t3 = !(t3 === 10 || t3 === 13 || t3 === 12);
+        } else
+          t3 = false;
+        if (!t3)
+          break;
+        t1.readChar$0();
+      }
+      return true;
+    },
+    loudComment$0() {
+      var next,
+        t1 = this.scanner;
+      t1.expect$1("/*");
+      for (; true;) {
+        if (t1.readChar$0() !== 42)
+          continue;
+        do
+          next = t1.readChar$0();
+        while (next === 42);
+        if (next === 47)
+          break;
+      }
+    },
+    identifier$2$normalize$unit(normalize, unit) {
+      var t2, _0_0, _this = this,
+        _s20_ = "Expected identifier.",
+        text = new A.StringBuffer(""),
+        t1 = _this.scanner;
+      if (t1.scanChar$1(45)) {
+        t2 = text._contents = "" + A.Primitives_stringFromCharCode(45);
+        if (t1.scanChar$1(45)) {
+          text._contents = t2 + A.Primitives_stringFromCharCode(45);
+          _this._parser0$_identifierBody$3$normalize$unit(text, normalize, unit);
+          t1 = text._contents;
+          return t1.charCodeAt(0) == 0 ? t1 : t1;
+        }
+      } else
+        t2 = "";
+      $label0$0: {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          t1.error$1(0, _s20_);
+        if (95 === _0_0 && normalize) {
+          t1.readChar$0();
+          text._contents = t2 + A.Primitives_stringFromCharCode(45);
+          break $label0$0;
+        }
+        if (_0_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_0_0) || _0_0 >= 128) {
+          text._contents = t2 + A.Primitives_stringFromCharCode(t1.readChar$0());
+          break $label0$0;
+        }
+        if (92 === _0_0) {
+          text._contents = t2 + _this.escape$1$identifierStart(true);
+          break $label0$0;
+        }
+        t1.error$1(0, _s20_);
+      }
+      _this._parser0$_identifierBody$3$normalize$unit(text, normalize, unit);
+      t1 = text._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    identifier$0() {
+      return this.identifier$2$normalize$unit(false, false);
+    },
+    identifier$1$normalize(normalize) {
+      return this.identifier$2$normalize$unit(normalize, false);
+    },
+    identifier$1$unit(unit) {
+      return this.identifier$2$normalize$unit(false, unit);
+    },
+    _parser0$_identifierBody$3$normalize$unit(text, normalize, unit) {
+      var t1, _1_0, _0_0, t2;
+      for (t1 = this.scanner; true;) {
+        _1_0 = t1.peekChar$0();
+        if (_1_0 == null)
+          break;
+        if (45 === _1_0 && unit) {
+          _0_0 = t1.peekChar$1(1);
+          if (46 !== _0_0)
+            t2 = A._isInt(_0_0) && _0_0 >= 48 && _0_0 <= 57;
+          else
+            t2 = true;
+          if (t2)
+            break;
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          text._contents += t2;
+          continue;
+        }
+        if (95 === _1_0 && normalize) {
+          t1.readChar$0();
+          t2 = A.Primitives_stringFromCharCode(45);
+          text._contents += t2;
+          continue;
+        }
+        if (_1_0 !== 95) {
+          if (!(_1_0 >= 97 && _1_0 <= 122))
+            t2 = _1_0 >= 65 && _1_0 <= 90;
+          else
+            t2 = true;
+          t2 = t2 || _1_0 >= 128;
+        } else
+          t2 = true;
+        if (!t2)
+          t2 = _1_0 >= 48 && _1_0 <= 57 || _1_0 === 45;
+        else
+          t2 = true;
+        if (t2) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          text._contents += t2;
+          continue;
+        }
+        if (92 === _1_0) {
+          t2 = this.escape$0();
+          text._contents += t2;
+          continue;
+        }
+        break;
+      }
+    },
+    _parser0$_identifierBody$1(text) {
+      return this._parser0$_identifierBody$3$normalize$unit(text, false, false);
+    },
+    string$0() {
+      var buffer, _0_0, t2,
+        t1 = this.scanner,
+        quote = t1.readChar$0();
+      if (quote !== 39 && quote !== 34)
+        t1.error$2$position(0, "Expected string.", t1._string_scanner$_position - 1);
+      buffer = new A.StringBuffer("");
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 === quote) {
+          t1.readChar$0();
+          break;
+        }
+        if (_0_0 == null || _0_0 === 10 || _0_0 === 13 || _0_0 === 12)
+          t1.error$1(0, "Expected " + A.Primitives_stringFromCharCode(quote) + ".");
+        if (92 === _0_0) {
+          t2 = t1.peekChar$1(1);
+          if (t2 === 10 || t2 === 13 || t2 === 12) {
+            t1.readChar$0();
+            t1.readChar$0();
+          } else {
+            t2 = A.Primitives_stringFromCharCode(A.consumeEscapedCharacter0(t1));
+            buffer._contents += t2;
+          }
+          continue;
+        }
+        t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+        buffer._contents += t2;
+      }
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    declarationValue$1$allowEmpty(allowEmpty) {
+      var t1, t2, wroteNewline, next, t3, start, end, _0_0, _this = this,
+        buffer = new A.StringBuffer(""),
+        brackets = A._setArrayType([], type$.JSArray_int);
+      for (t1 = _this.scanner, t2 = _this.get$string(), wroteNewline = false; true;) {
+        next = t1.peekChar$0();
+        if (next == null)
+          break;
+        if (92 === next) {
+          t3 = _this.escape$1$identifierStart(true);
+          buffer._contents += t3;
+          wroteNewline = false;
+          continue;
+        }
+        if (34 === next || 39 === next) {
+          start = t1._string_scanner$_position;
+          t2.call$0();
+          end = t1._string_scanner$_position;
+          buffer._contents += B.JSString_methods.substring$2(t1.string, start, end);
+          wroteNewline = false;
+          continue;
+        }
+        if (47 === next) {
+          if (t1.peekChar$1(1) === 42) {
+            t3 = _this.get$loudComment();
+            start = t1._string_scanner$_position;
+            t3.call$0();
+            end = t1._string_scanner$_position;
+            buffer._contents += B.JSString_methods.substring$2(t1.string, start, end);
+          } else {
+            t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            buffer._contents += t3;
+          }
+          wroteNewline = false;
+          continue;
+        }
+        if (32 === next || 9 === next) {
+          if (!wroteNewline) {
+            t3 = t1.peekChar$1(1);
+            t3 = !(t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12);
+          } else
+            t3 = true;
+          if (t3) {
+            t3 = A.Primitives_stringFromCharCode(32);
+            buffer._contents += t3;
+          }
+          t1.readChar$0();
+          continue;
+        }
+        if (10 === next || 13 === next || 12 === next) {
+          t3 = t1.peekChar$1(-1);
+          if (!(t3 === 10 || t3 === 13 || t3 === 12))
+            buffer._contents += "\n";
+          t1.readChar$0();
+          wroteNewline = true;
+          continue;
+        }
+        if (40 === next || 123 === next || 91 === next) {
+          t3 = A.Primitives_stringFromCharCode(next);
+          buffer._contents += t3;
+          brackets.push(A.opposite0(t1.readChar$0()));
+          wroteNewline = false;
+          continue;
+        }
+        if (41 === next || 125 === next || 93 === next) {
+          if (brackets.length === 0)
+            break;
+          t3 = A.Primitives_stringFromCharCode(next);
+          buffer._contents += t3;
+          t1.expectChar$1(brackets.pop());
+          wroteNewline = false;
+          continue;
+        }
+        if (59 === next) {
+          if (brackets.length === 0)
+            break;
+          t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          buffer._contents += t3;
+          continue;
+        }
+        if (117 === next || 85 === next) {
+          _0_0 = _this.tryUrl$0();
+          if (_0_0 != null)
+            buffer._contents += _0_0;
+          else {
+            t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            buffer._contents += t3;
+          }
+          wroteNewline = false;
+          continue;
+        }
+        if (_this.lookingAtIdentifier$0()) {
+          t3 = _this.identifier$0();
+          buffer._contents += t3;
+        } else {
+          t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          buffer._contents += t3;
+        }
+        wroteNewline = false;
+      }
+      if (brackets.length !== 0)
+        t1.expectChar$1(B.JSArray_methods.get$last(brackets));
+      if (!allowEmpty && buffer._contents.length === 0)
+        t1.error$1(0, "Expected token.");
+      t1 = buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    declarationValue$0() {
+      return this.declarationValue$1$allowEmpty(false);
+    },
+    tryUrl$0() {
+      var buffer, _0_0, t2, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (!_this.scanIdentifier$1("url"))
+        return null;
+      if (!t1.scanChar$1(40)) {
+        t1.set$state(start);
+        return null;
+      }
+      _this.whitespace$0();
+      buffer = new A.StringBuffer("");
+      buffer._contents = "" + "url(";
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          break;
+        if (92 === _0_0) {
+          t2 = _this.escape$0();
+          buffer._contents += t2;
+          continue;
+        }
+        if (37 !== _0_0)
+          if (38 !== _0_0)
+            if (35 !== _0_0)
+              t2 = _0_0 >= 42 && _0_0 <= 126 || _0_0 >= 128;
+            else
+              t2 = true;
+          else
+            t2 = true;
+        else
+          t2 = true;
+        if (t2) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          buffer._contents += t2;
+          continue;
+        }
+        if (_0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12) {
+          _this.whitespace$0();
+          if (t1.peekChar$0() !== 41)
+            break;
+          continue;
+        }
+        if (41 === _0_0) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t2 = buffer._contents += t2;
+          return t2.charCodeAt(0) == 0 ? t2 : t2;
+        }
+        break;
+      }
+      t1.set$state(start);
+      return null;
+    },
+    variableName$0() {
+      this.scanner.expectChar$1(36);
+      return this.identifier$1$normalize(true);
+    },
+    escape$1$identifierStart(identifierStart) {
+      var value, _0_0, i, next, t2, exception,
+        _s25_ = "Expected escape sequence.",
+        t1 = this.scanner,
+        start = t1._string_scanner$_position;
+      t1.expectChar$1(92);
+      value = 0;
+      $label0$1: {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          t1.error$1(0, _s25_);
+        if (_0_0 === 10 || _0_0 === 13 || _0_0 === 12)
+          t1.error$1(0, _s25_);
+        if (A.CharacterExtension_get_isHex0(_0_0)) {
+          for (i = 0; i < 6; ++i) {
+            next = t1.peekChar$0();
+            if (next != null) {
+              if (!(next >= 48 && next <= 57))
+                if (!(next >= 97 && next <= 102))
+                  t2 = next >= 65 && next <= 70;
+                else
+                  t2 = true;
+              else
+                t2 = true;
+              t2 = !t2;
+            } else
+              t2 = true;
+            if (t2)
+              break;
+            value *= 16;
+            value += A.asHex0(t1.readChar$0());
+          }
+          this.scanCharIf$1(new A.Parser_escape_closure0());
+          break $label0$1;
+        }
+        value = t1.readChar$0();
+      }
+      if (identifierStart) {
+        t2 = value;
+        t2 = t2 === 95 || A.CharacterExtension_get_isAlphabetic0(t2) || t2 >= 128;
+      } else {
+        t2 = value;
+        if (!(t2 === 95 || A.CharacterExtension_get_isAlphabetic0(t2) || t2 >= 128))
+          t2 = t2 >= 48 && t2 <= 57 || t2 === 45;
+        else
+          t2 = true;
+      }
+      if (t2)
+        try {
+          t2 = A.Primitives_stringFromCharCode(value);
+          return t2;
+        } catch (exception) {
+          if (type$.RangeError._is(A.unwrapException(exception)))
+            t1.error$3$length$position(0, "Invalid Unicode code point.", t1._string_scanner$_position - start, start);
+          else
+            throw exception;
+        }
+      else {
+        if (!(value <= 31))
+          if (!J.$eq$(value, 127))
+            if (identifierStart) {
+              t1 = value;
+              t1 = t1 >= 48 && t1 <= 57;
+            } else
+              t1 = false;
+          else
+            t1 = true;
+        else
+          t1 = true;
+        if (t1) {
+          t1 = "" + A.Primitives_stringFromCharCode(92);
+          if (value > 15)
+            t1 += A.Primitives_stringFromCharCode(A.hexCharFor0(B.JSNumber_methods._shrOtherPositive$1(value, 4)));
+          t1 = t1 + A.Primitives_stringFromCharCode(A.hexCharFor0(value & 15)) + A.Primitives_stringFromCharCode(32);
+          return t1.charCodeAt(0) == 0 ? t1 : t1;
+        } else
+          return A.String_String$fromCharCodes(A._setArrayType([92, value], type$.JSArray_int), 0, null);
+      }
+    },
+    escape$0() {
+      return this.escape$1$identifierStart(false);
+    },
+    scanCharIf$1(condition) {
+      var t1 = this.scanner;
+      if (!condition.call$1(t1.peekChar$0()))
+        return false;
+      t1.readChar$0();
+      return true;
+    },
+    scanIdentChar$2$caseSensitive(char, caseSensitive) {
+      var t3,
+        t1 = new A.Parser_scanIdentChar_matches0(caseSensitive, char),
+        t2 = this.scanner,
+        _0_0 = t2.peekChar$0();
+      if (_0_0 != null) {
+        t3 = t1.call$1(_0_0);
+        t3 = t3;
+      } else
+        t3 = false;
+      if (t3) {
+        t2.readChar$0();
+        return true;
+      }
+      if (92 === _0_0) {
+        t3 = t2._string_scanner$_position;
+        if (t1.call$1(A.consumeEscapedCharacter0(t2)))
+          return true;
+        t2.set$state(new A._SpanScannerState(t2, t3));
+      }
+      return false;
+    },
+    scanIdentChar$1(char) {
+      return this.scanIdentChar$2$caseSensitive(char, false);
+    },
+    expectIdentChar$1(letter) {
+      var t1;
+      if (this.scanIdentChar$2$caseSensitive(letter, false))
+        return;
+      t1 = this.scanner;
+      t1.error$2$position(0, 'Expected "' + A.Primitives_stringFromCharCode(letter) + '".', t1._string_scanner$_position);
+    },
+    lookingAtIdentifier$1($forward) {
+      var t1, _1_0, t2, _0_0;
+      if ($forward == null)
+        $forward = 0;
+      t1 = this.scanner;
+      _1_0 = t1.peekChar$1($forward);
+      $label0$0: {
+        if (A._isInt(_1_0))
+          t2 = _1_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_1_0) || _1_0 >= 128;
+        else
+          t2 = false;
+        if (t2 || 92 === _1_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (45 === _1_0) {
+          _0_0 = t1.peekChar$1($forward + 1);
+          $label1$1: {
+            if (A._isInt(_0_0))
+              t1 = _0_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_0_0) || _0_0 >= 128;
+            else
+              t1 = false;
+            t1 = t1 || 92 === _0_0 || 45 === _0_0;
+            if (t1)
+              break $label1$1;
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    lookingAtIdentifier$0() {
+      return this.lookingAtIdentifier$1(null);
+    },
+    lookingAtIdentifierBody$0() {
+      var t1,
+        next = this.scanner.peekChar$0();
+      if (next != null) {
+        if (!(next === 95 || A.CharacterExtension_get_isAlphabetic0(next) || next >= 128))
+          t1 = next >= 48 && next <= 57 || next === 45;
+        else
+          t1 = true;
+        t1 = t1 || next === 92;
+      } else
+        t1 = false;
+      return t1;
+    },
+    scanIdentifier$2$caseSensitive(text, caseSensitive) {
+      var t1, t2, _this = this;
+      if (!_this.lookingAtIdentifier$0())
+        return false;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      if (_this._parser0$_consumeIdentifier$2(text, caseSensitive) && !_this.lookingAtIdentifierBody$0())
+        return true;
+      else {
+        t1.set$state(new A._SpanScannerState(t1, t2));
+        return false;
+      }
+    },
+    scanIdentifier$1(text) {
+      return this.scanIdentifier$2$caseSensitive(text, false);
+    },
+    _parser0$_consumeIdentifier$2(text, caseSensitive) {
+      var t1, t2, t3;
+      for (t1 = new A.CodeUnits(text), t2 = type$.CodeUnits, t1 = new A.ListIterator(t1, t1.get$length(0), t2._eval$1("ListIterator<ListBase.E>")), t2 = t2._eval$1("ListBase.E"); t1.moveNext$0();) {
+        t3 = t1.__internal$_current;
+        if (!this.scanIdentChar$2$caseSensitive(t3 == null ? t2._as(t3) : t3, caseSensitive))
+          return false;
+      }
+      return true;
+    },
+    expectIdentifier$2$name(text, $name) {
+      var t1, start, t2, t3, t4, t5, t6;
+      if ($name == null)
+        $name = '"' + text + '"';
+      t1 = this.scanner;
+      start = t1._string_scanner$_position;
+      for (t2 = new A.CodeUnits(text), t3 = type$.CodeUnits, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t4 = "Expected " + $name, t5 = t4 + ".", t3 = t3._eval$1("ListBase.E"); t2.moveNext$0();) {
+        t6 = t2.__internal$_current;
+        if (this.scanIdentChar$2$caseSensitive(t6 == null ? t3._as(t6) : t6, false))
+          continue;
+        t1.error$2$position(0, t5, start);
+      }
+      if (!this.lookingAtIdentifierBody$0())
+        return;
+      t1.error$2$position(0, t4, start);
+    },
+    expectIdentifier$1(text) {
+      return this.expectIdentifier$2$name(text, null);
+    },
+    rawText$1(consumer) {
+      var t1 = this.scanner,
+        start = t1._string_scanner$_position;
+      consumer.call$0();
+      return t1.substring$1(0, start);
+    },
+    spanFrom$1(state) {
+      var span = this.scanner.spanFrom$1(state);
+      return this._parser0$_interpolationMap == null ? span : new A.LazyFileSpan0(new A.Parser_spanFrom_closure0(this, span));
+    },
+    error$3(_, message, span, trace) {
+      var exception = new A.StringScannerException(this.scanner.string, message, span);
+      if (trace == null)
+        throw A.wrapException(exception);
+      else
+        A.throwWithTrace0(exception, this.get$error(this), trace);
+    },
+    error$2(_, message, span) {
+      return this.error$3(0, message, span, null);
+    },
+    withErrorMessage$1$2(message, callback) {
+      var error, stackTrace, t1, exception;
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } catch (exception) {
+        t1 = A.unwrapException(exception);
+        if (type$.SourceSpanFormatException._is(t1)) {
+          error = t1;
+          stackTrace = A.getTraceFromException(exception);
+          t1 = J.get$span$z(error);
+          A.throwWithTrace0(new A.SourceSpanFormatException(error.get$source(), message, t1), error, stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    withErrorMessage$2(message, callback) {
+      return this.withErrorMessage$1$2(message, callback, type$.dynamic);
+    },
+    wrapSpanFormatException$1$1(callback) {
+      var error, stackTrace, map, error0, stackTrace0, span, error1, stackTrace1, span0, secondarySpans, t1, t2, span1, description, _0_0, t3, exception, t4, _this = this,
+        _s8_ = "expected";
+      try {
+        try {
+          t3 = callback.call$0();
+          return t3;
+        } catch (exception) {
+          t3 = A.unwrapException(exception);
+          if (type$.SourceSpanFormatException._is(t3)) {
+            error = t3;
+            stackTrace = A.getTraceFromException(exception);
+            map = _this._parser0$_interpolationMap;
+            if (map == null)
+              throw exception;
+            A.throwWithTrace0(map.mapException$1(error), error, stackTrace);
+          } else
+            throw exception;
+        }
+      } catch (exception) {
+        t3 = A.unwrapException(exception);
+        if (type$.SourceSpanFormatException._is(t3)) {
+          error0 = t3;
+          stackTrace0 = A.getTraceFromException(exception);
+          span = J.get$span$z(error0);
+          if (A.startsWithIgnoreCase0(error0._span_exception$_message, _s8_))
+            span = _this._parser0$_adjustExceptionSpan$1(span);
+          t1 = error0._span_exception$_message;
+          t2 = span;
+          A.throwWithTrace0(new A.SassFormatException0(B.Set_empty, t1, t2), error0, stackTrace0);
+        } else if (type$.MultiSourceSpanFormatException._is(t3)) {
+          error1 = t3;
+          stackTrace1 = A.getTraceFromException(exception);
+          span0 = J.get$span$z(error1);
+          t3 = type$.FileSpan;
+          t4 = type$.String;
+          secondarySpans = error1.get$secondarySpans().cast$2$0(0, t3, t4);
+          if (A.startsWithIgnoreCase0(error1._span_exception$_message, _s8_)) {
+            span0 = _this._parser0$_adjustExceptionSpan$1(span0);
+            t1 = A.LinkedHashMap_LinkedHashMap$_empty(t3, t4);
+            for (t3 = A.MapExtensions_get_pairs0(secondarySpans, t3, t4), t3 = t3.get$iterator(t3); t3.moveNext$0();) {
+              t2 = t3.get$current(t3);
+              span1 = null;
+              description = null;
+              _0_0 = t2;
+              span1 = _0_0._0;
+              description = _0_0._1;
+              J.$indexSet$ax(t1, _this._parser0$_adjustExceptionSpan$1(span1), description);
+            }
+            secondarySpans = t1;
+          }
+          A.throwWithTrace0(A.MultiSpanSassFormatException$0(error1._span_exception$_message, span0, error1.get$primaryLabel(), secondarySpans, null), error1, stackTrace1);
+        } else
+          throw exception;
+      }
+    },
+    wrapSpanFormatException$1(callback) {
+      return this.wrapSpanFormatException$1$1(callback, type$.dynamic);
+    },
+    _parser0$_adjustExceptionSpan$1(span) {
+      var start, t1;
+      if (span.get$length(span) > 0)
+        return span;
+      start = this._parser0$_firstNewlineBefore$1(span.get$start(span));
+      if (start.$eq(0, span.get$start(span)))
+        t1 = span;
+      else {
+        t1 = start.offset;
+        t1 = A._FileSpan$(start.file, t1, t1);
+      }
+      return t1;
+    },
+    _parser0$_firstNewlineBefore$1($location) {
+      var lastNewline, codeUnit,
+        t1 = $location.file,
+        t2 = $location.offset,
+        text = A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1._decodedChars, 0, t2), 0, null),
+        index = t2 - 1;
+      for (lastNewline = null; index >= 0;) {
+        codeUnit = text.charCodeAt(index);
+        if (!(codeUnit === 32 || codeUnit === 9 || codeUnit === 10 || codeUnit === 13 || codeUnit === 12)) {
+          if (lastNewline == null)
+            t1 = $location;
+          else {
+            t2 = new A.FileLocation(t1, lastNewline);
+            t2.FileLocation$_$2(t1, lastNewline);
+            t1 = t2;
+          }
+          return t1;
+        }
+        if (codeUnit === 10 || codeUnit === 13 || codeUnit === 12)
+          lastNewline = index;
+        --index;
+      }
+      return $location;
+    }
+  };
+  A.Parser__parseIdentifier_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        result = t1.identifier$0();
+      t1.scanner.expectDone$0();
+      return result;
+    },
+    $signature: 25
+  };
+  A.Parser_escape_closure0.prototype = {
+    call$1(char) {
+      return char === 32 || char === 9 || char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.Parser_scanIdentChar_matches0.prototype = {
+    call$1(actual) {
+      var t1 = this.char;
+      return this.caseSensitive ? actual === t1 : A.characterEqualsIgnoreCase0(t1, actual);
+    },
+    $signature: 45
+  };
+  A.Parser_spanFrom_closure0.prototype = {
+    call$0() {
+      return this.$this._parser0$_interpolationMap.mapSpan$1(this.span);
+    },
+    $signature: 26
+  };
+  A.PlaceholderSelector0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitPlaceholderSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      return new A.PlaceholderSelector0(this.name + suffix, this.span);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.PlaceholderSelector0 && other.name === this.name;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    }
+  };
+  A.PlainCssCallable0.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.PlainCssCallable0 && this.name === other.name;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name);
+    },
+    $isAsyncCallable0: 1,
+    $isCallable: 1,
+    get$name(receiver) {
+      return this.name;
+    }
+  };
+  A.PrefixedMapView0.prototype = {
+    get$keys(_) {
+      return new A._PrefixedKeys0(this);
+    },
+    get$length(_) {
+      var t1 = this._prefixed_map_view0$_map;
+      return t1.get$length(t1);
+    },
+    get$isEmpty(_) {
+      var t1 = this._prefixed_map_view0$_map;
+      return t1.get$isEmpty(t1);
+    },
+    get$isNotEmpty(_) {
+      var t1 = this._prefixed_map_view0$_map;
+      return t1.get$isNotEmpty(t1);
+    },
+    $index(_, key) {
+      return typeof key == "string" && B.JSString_methods.startsWith$1(key, this._prefixed_map_view0$_prefix) ? this._prefixed_map_view0$_map.$index(0, J.substring$1$s(key, this._prefixed_map_view0$_prefix.length)) : null;
+    },
+    containsKey$1(key) {
+      return typeof key == "string" && B.JSString_methods.startsWith$1(key, this._prefixed_map_view0$_prefix) && this._prefixed_map_view0$_map.containsKey$1(J.substring$1$s(key, this._prefixed_map_view0$_prefix.length));
+    }
+  };
+  A._PrefixedKeys0.prototype = {
+    get$length(_) {
+      var t1 = this._prefixed_map_view0$_view._prefixed_map_view0$_map;
+      return t1.get$length(t1);
+    },
+    get$iterator(_) {
+      var t1 = this._prefixed_map_view0$_view._prefixed_map_view0$_map;
+      t1 = J.map$1$1$ax(t1.get$keys(t1), new A._PrefixedKeys_iterator_closure0(this), type$.String);
+      return t1.get$iterator(t1);
+    },
+    contains$1(_, key) {
+      return this._prefixed_map_view0$_view.containsKey$1(key);
+    }
+  };
+  A._PrefixedKeys_iterator_closure0.prototype = {
+    call$1(key) {
+      return this.$this._prefixed_map_view0$_view._prefixed_map_view0$_prefix + key;
+    },
+    $signature: 5
+  };
+  A.PseudoSelector0.prototype = {
+    get$isHostContext() {
+      return this.isClass && this.name === "host-context" && this.selector != null;
+    },
+    get$specificity() {
+      var result, _this = this,
+        value = _this._pseudo$__PseudoSelector_specificity_FI;
+      if (value === $) {
+        result = new A.PseudoSelector_specificity_closure0(_this).call$0();
+        _this._pseudo$__PseudoSelector_specificity_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this._pseudo$__PseudoSelector_specificity_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    withSelector$1(selector) {
+      var _this = this;
+      return A.PseudoSelector$0(_this.name, _this.span, _this.argument, !_this.isClass, selector);
+    },
+    addSuffix$1(suffix) {
+      var _this = this;
+      if (_this.argument != null || _this.selector != null)
+        _this.super$SimpleSelector$addSuffix0(suffix);
+      return A.PseudoSelector$0(_this.name + suffix, _this.span, null, !_this.isClass, null);
+    },
+    unify$1(compound) {
+      var other, result, t2, addedThis, _i, simple, _this = this,
+        t1 = _this.name;
+      if (t1 === "host" || t1 === "host-context") {
+        if (!B.JSArray_methods.every$1(compound, new A.PseudoSelector_unify_closure0()))
+          return null;
+      } else {
+        if (compound.length === 1) {
+          other = compound[0];
+          if (!(other instanceof A.UniversalSelector0))
+            if (other instanceof A.PseudoSelector0)
+              t1 = other.isClass && other.name === "host" || other.get$isHostContext();
+            else
+              t1 = false;
+          else
+            t1 = true;
+        } else {
+          other = null;
+          t1 = false;
+        }
+        if (t1)
+          return other.unify$1(A._setArrayType([_this], type$.JSArray_SimpleSelector_2));
+      }
+      if (B.JSArray_methods.contains$1(compound, _this))
+        return compound;
+      result = A._setArrayType([], type$.JSArray_SimpleSelector_2);
+      for (t1 = compound.length, t2 = !_this.isClass, addedThis = false, _i = 0; _i < compound.length; compound.length === t1 || (0, A.throwConcurrentModificationError)(compound), ++_i) {
+        simple = compound[_i];
+        if (simple instanceof A.PseudoSelector0 && !simple.isClass) {
+          if (t2)
+            return null;
+          result.push(_this);
+          addedThis = true;
+        }
+        result.push(simple);
+      }
+      if (!addedThis)
+        result.push(_this);
+      return result;
+    },
+    isSuperselector$1(other) {
+      var selector, t1, t2, _this = this;
+      if (_this.super$SimpleSelector$isSuperselector0(other))
+        return true;
+      selector = _this.selector;
+      if (selector == null)
+        return _this.$eq(0, other);
+      if (other instanceof A.PseudoSelector0 && !_this.isClass && !other.isClass && _this.normalizedName === "slotted" && other.name === _this.name) {
+        t1 = A.NullableExtension_andThen0(other.selector, selector.get$isSuperselector());
+        return t1 == null ? false : t1;
+      }
+      t1 = type$.JSArray_SimpleSelector_2;
+      t2 = _this.span;
+      return A.compoundIsSuperselector0(A.CompoundSelector$0(A._setArrayType([_this], t1), t2), A.CompoundSelector$0(A._setArrayType([other], t1), t2), null);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitPseudoSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    $eq(_, other) {
+      var _this = this;
+      if (other == null)
+        return false;
+      return other instanceof A.PseudoSelector0 && other.name === _this.name && other.isClass === _this.isClass && other.argument == _this.argument && J.$eq$(other.selector, _this.selector);
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = B.JSString_methods.get$hashCode(_this.name),
+        t2 = !_this.isClass ? 519018 : 218159;
+      return t1 ^ t2 ^ J.get$hashCode$(_this.argument) ^ J.get$hashCode$(_this.selector);
+    }
+  };
+  A.PseudoSelector_specificity_closure0.prototype = {
+    call$0() {
+      var selector, t2,
+        t1 = this.$this;
+      if (!t1.isClass)
+        return 1;
+      selector = t1.selector;
+      if (selector == null)
+        return A.SimpleSelector0.prototype.get$specificity.call(t1);
+      switch (t1.normalizedName) {
+        case "where":
+          return 0;
+        case "is":
+        case "not":
+        case "has":
+        case "matches":
+          t1 = selector.components;
+          return A.IterableIntegerExtension_get_max(new A.MappedListIterable(t1, new A.PseudoSelector_specificity__closure1(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,int>")));
+        case "nth-child":
+        case "nth-last-child":
+          t1 = A.SimpleSelector0.prototype.get$specificity.call(t1);
+          t2 = selector.components;
+          return t1 + A.IterableIntegerExtension_get_max(new A.MappedListIterable(t2, new A.PseudoSelector_specificity__closure2(), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,int>")));
+        default:
+          return A.SimpleSelector0.prototype.get$specificity.call(t1);
+      }
+    },
+    $signature: 10
+  };
+  A.PseudoSelector_specificity__closure1.prototype = {
+    call$1(component) {
+      return component.get$specificity();
+    },
+    $signature: 203
+  };
+  A.PseudoSelector_specificity__closure2.prototype = {
+    call$1(component) {
+      return component.get$specificity();
+    },
+    $signature: 203
+  };
+  A.PseudoSelector_unify_closure0.prototype = {
+    call$1(simple) {
+      var t1;
+      if (simple instanceof A.PseudoSelector0)
+        t1 = simple.isClass && simple.name === "host" || simple.selector != null;
+      else
+        t1 = false;
+      return t1;
+    },
+    $signature: 15
+  };
+  A.PublicMemberMapView0.prototype = {
+    get$keys(_) {
+      var t1 = this._public_member_map_view0$_inner;
+      return J.where$1$ax(t1.get$keys(t1), A.utils0__isPublic$closure());
+    },
+    containsKey$1(key) {
+      return typeof key == "string" && A.isPublic0(key) && this._public_member_map_view0$_inner.containsKey$1(key);
+    },
+    $index(_, key) {
+      if (typeof key == "string" && A.isPublic0(key))
+        return this._public_member_map_view0$_inner.$index(0, key);
+      return null;
+    }
+  };
+  A.QualifiedName0.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.QualifiedName0 && other.name === this.name && other.namespace == this.namespace;
+    },
+    get$hashCode(_) {
+      return B.JSString_methods.get$hashCode(this.name) ^ J.get$hashCode$(this.namespace);
+    },
+    toString$0(_) {
+      var t1 = this.namespace,
+        t2 = this.name;
+      return t1 == null ? t2 : t1 + "|" + t2;
+    }
+  };
+  A.JSClass0.prototype = {};
+  A.JSClassExtension_setCustomInspect_closure.prototype = {
+    call$4($self, _, __, ___) {
+      return this.inspect.call$1($self);
+    },
+    call$3($self, _, __) {
+      return this.call$4($self, _, __, null);
+    },
+    "call*": "call$4",
+    $requiredArgCount: 3,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 526
+  };
+  A.JSClassExtension_get_defineStaticMethod_closure.prototype = {
+    call$2($name, body) {
+      this._this[$name] = A.allowInteropNamed($name, body);
+      return null;
+    },
+    $signature: 131
+  };
+  A.JSClassExtension_get_defineMethod_closure.prototype = {
+    call$2($name, body) {
+      J.get$$prototype$x(this._this)[$name] = A.allowInteropCaptureThisNamed($name, body);
+      return null;
+    },
+    $signature: 131
+  };
+  A.JSClassExtension_get_defineGetter_closure.prototype = {
+    call$2($name, body) {
+      A.defineGetter(J.get$$prototype$x(this._this), $name, body, null);
+      return null;
+    },
+    $signature: 131
+  };
+  A.RenderContext0.prototype = {};
+  A.RenderContextOptions0.prototype = {};
+  A.RenderContextResult0.prototype = {};
+  A.RenderContextResultStats0.prototype = {};
+  A.RenderOptions.prototype = {};
+  A.RenderResult.prototype = {};
+  A.RenderResultStats.prototype = {};
+  A.ReplaceExpressionVisitor0.prototype = {
+    visitBinaryOperationExpression$1(node) {
+      return new A.BinaryOperationExpression0(node.operator, node.left.accept$1(this), node.right.accept$1(this), false);
+    },
+    visitBooleanExpression$1(node) {
+      return node;
+    },
+    visitColorExpression$1(node) {
+      return node;
+    },
+    visitFunctionExpression$1(node) {
+      var t1 = node.originalName,
+        t2 = this.visitArgumentInvocation$1(node.$arguments);
+      return new A.FunctionExpression0(node.namespace, A.stringReplaceAllUnchecked(t1, "_", "-"), t1, t2, node.span);
+    },
+    visitInterpolatedFunctionExpression$1(node) {
+      return new A.InterpolatedFunctionExpression0(this.visitInterpolation$1(node.name), this.visitArgumentInvocation$1(node.$arguments), node.span);
+    },
+    visitIfExpression$1(node) {
+      return new A.IfExpression0(this.visitArgumentInvocation$1(node.$arguments), node.span);
+    },
+    visitListExpression$1(node) {
+      var t1 = node.contents;
+      return new A.ListExpression0(A.List_List$unmodifiable(new A.MappedListIterable(t1, new A.ReplaceExpressionVisitor_visitListExpression_closure0(this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Expression0>")), type$.Expression_2), node.separator, node.hasBrackets, node.span);
+    },
+    visitMapExpression$1(node) {
+      var t2, t3, _i, t4, key, value,
+        t1 = A._setArrayType([], type$.JSArray_Record_2_Expression_and_Expression_2);
+      for (t2 = node.pairs, t3 = t2.length, _i = 0; _i < t3; ++_i) {
+        t4 = t2[_i];
+        key = t4._0;
+        value = t4._1;
+        t1.push(new A._Record_2(key.accept$1(this), value.accept$1(this)));
+      }
+      return new A.MapExpression0(A.List_List$unmodifiable(t1, type$.Record_2_Expression_and_Expression_2), node.span);
+    },
+    visitNullExpression$1(node) {
+      return node;
+    },
+    visitNumberExpression$1(node) {
+      return node;
+    },
+    visitParenthesizedExpression$1(node) {
+      return new A.ParenthesizedExpression0(node.expression.accept$1(this), node.span);
+    },
+    visitSelectorExpression$1(node) {
+      return node;
+    },
+    visitStringExpression$1(node) {
+      return new A.StringExpression0(this.visitInterpolation$1(node.text), node.hasQuotes);
+    },
+    visitSupportsExpression$1(node) {
+      return new A.SupportsExpression0(this.visitSupportsCondition$1(node.condition));
+    },
+    visitUnaryOperationExpression$1(node) {
+      return new A.UnaryOperationExpression0(node.operator, node.operand.accept$1(this), node.span);
+    },
+    visitValueExpression$1(node) {
+      return node;
+    },
+    visitVariableExpression$1(node) {
+      return node;
+    },
+    visitArgumentInvocation$1(invocation) {
+      var t5, t6, _this = this,
+        t1 = invocation.positional,
+        t2 = type$.String,
+        t3 = type$.Expression_2,
+        t4 = A.LinkedHashMap_LinkedHashMap$_empty(t2, t3);
+      for (t5 = A.MapExtensions_get_pairs0(invocation.named, t2, t3), t5 = t5.get$iterator(t5); t5.moveNext$0();) {
+        t6 = t5.get$current(t5);
+        t4.$indexSet(0, t6._0, t6._1.accept$1(_this));
+      }
+      t5 = invocation.rest;
+      t5 = t5 == null ? null : t5.accept$1(_this);
+      t6 = invocation.keywordRest;
+      t6 = t6 == null ? null : t6.accept$1(_this);
+      return new A.ArgumentInvocation0(A.List_List$unmodifiable(new A.MappedListIterable(t1, new A.ReplaceExpressionVisitor_visitArgumentInvocation_closure0(_this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Expression0>")), t3), A.ConstantMap_ConstantMap$from(t4, t2, t3), t5, t6, invocation.span);
+    },
+    visitSupportsCondition$1(condition) {
+      var _this = this;
+      if (condition instanceof A.SupportsOperation0)
+        return A.SupportsOperation$0(_this.visitSupportsCondition$1(condition.left), _this.visitSupportsCondition$1(condition.right), condition.operator, condition.span);
+      else if (condition instanceof A.SupportsNegation0)
+        return new A.SupportsNegation0(_this.visitSupportsCondition$1(condition.condition), condition.span);
+      else if (condition instanceof A.SupportsInterpolation0)
+        return new A.SupportsInterpolation0(condition.expression.accept$1(_this), condition.span);
+      else if (condition instanceof A.SupportsDeclaration0)
+        return new A.SupportsDeclaration0(condition.name.accept$1(_this), condition.value.accept$1(_this), condition.span);
+      else
+        throw A.wrapException(A.SassException$0("BUG: Unknown SupportsCondition " + condition.toString$0(0) + ".", condition.get$span(condition), null));
+    },
+    visitInterpolation$1(interpolation) {
+      var t1 = interpolation.contents;
+      return A.Interpolation$0(new A.MappedListIterable(t1, new A.ReplaceExpressionVisitor_visitInterpolation_closure0(this), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Object>")), interpolation.span);
+    }
+  };
+  A.ReplaceExpressionVisitor_visitListExpression_closure0.prototype = {
+    call$1(item) {
+      return item.accept$1(this.$this);
+    },
+    $signature: 202
+  };
+  A.ReplaceExpressionVisitor_visitArgumentInvocation_closure0.prototype = {
+    call$1(expression) {
+      return expression.accept$1(this.$this);
+    },
+    $signature: 202
+  };
+  A.ReplaceExpressionVisitor_visitInterpolation_closure0.prototype = {
+    call$1(node) {
+      return type$.Expression_2._is(node) ? node.accept$1(this.$this) : node;
+    },
+    $signature: 64
+  };
+  A.ImporterResult0.prototype = {
+    get$sourceMapUrl(_) {
+      var t1 = this._result$_sourceMapUrl;
+      return t1 == null ? A.Uri_Uri$dataFromString(this.contents, B.C_Utf8Codec, null) : t1;
+    }
+  };
+  A.ReturnRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitReturnRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@return " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SassParser0.prototype = {
+    get$currentIndentation() {
+      return this._sass0$_currentIndentation;
+    },
+    get$indented() {
+      return true;
+    },
+    styleRuleSelector$0() {
+      var t4,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer0(t3, A._setArrayType([], type$.JSArray_Object));
+      do {
+        buffer.addInterpolation$1(this.almostAnyValue$1$omitComments(true));
+        t4 = A.Primitives_stringFromCharCode(10);
+        t4 = t3._contents += t4;
+      } while (B.JSString_methods.endsWith$1(B.JSString_methods.trimRight$0(t4.charCodeAt(0) == 0 ? t4 : t4), ",") && this.scanCharIf$1(new A.SassParser_styleRuleSelector_closure0()));
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    expectStatementSeparator$1($name) {
+      var t1, _this = this;
+      if (!_this.atEndOfStatement$0())
+        _this._sass0$_expectNewline$0();
+      if (_this._sass0$_peekIndentation$0() <= _this._sass0$_currentIndentation)
+        return;
+      t1 = $name == null ? "here" : "beneath a " + $name;
+      _this.scanner.error$2$position(0, "Nothing may be indented " + t1 + ".", _this._sass0$_nextIndentationEnd.position);
+    },
+    expectStatementSeparator$0() {
+      return this.expectStatementSeparator$1(null);
+    },
+    atEndOfStatement$0() {
+      var t1 = this.scanner.peekChar$0();
+      if (t1 == null)
+        t1 = null;
+      else
+        t1 = t1 === 10 || t1 === 13 || t1 === 12;
+      return t1 !== false;
+    },
+    lookingAtChildren$0() {
+      return this.atEndOfStatement$0() && this._sass0$_peekIndentation$0() > this._sass0$_currentIndentation;
+    },
+    importArgument$0() {
+      var url, span, innerError, stackTrace, t1, _0_0, start, next, t2, exception, _this = this;
+      $label0$0: {
+        t1 = _this.scanner;
+        _0_0 = t1.peekChar$0();
+        if (117 === _0_0 || 85 === _0_0) {
+          start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+          if (_this.scanIdentifier$1("url"))
+            if (t1.scanChar$1(40)) {
+              t1.set$state(start);
+              return _this.super$StylesheetParser$importArgument0();
+            } else
+              t1.set$state(start);
+          break $label0$0;
+        }
+        if (39 === _0_0 || 34 === _0_0)
+          return _this.super$StylesheetParser$importArgument0();
+      }
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      next = t1.peekChar$0();
+      while (true) {
+        if (next != null)
+          if (next !== 44)
+            if (next !== 59)
+              t2 = !(next === 10 || next === 13 || next === 12);
+            else
+              t2 = false;
+          else
+            t2 = false;
+        else
+          t2 = false;
+        if (!t2)
+          break;
+        t1.readChar$0();
+        next = t1.peekChar$0();
+      }
+      url = t1.substring$1(0, start.position);
+      span = t1.spanFrom$1(start);
+      if (_this.isPlainImportUrl$1(url))
+        return new A.StaticImport0(A.Interpolation$0(A._setArrayType([A.serializeValue0(new A.SassString0(url, true), true, true)], type$.JSArray_Object), span), null, span);
+      else
+        try {
+          t1 = _this.parseImportUrl$1(url);
+          return new A.DynamicImport0(t1, span);
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (type$.FormatException._is(t1)) {
+            innerError = t1;
+            stackTrace = A.getTraceFromException(exception);
+            _this.error$3(0, "Invalid URL: " + J.get$message$x(innerError), span, stackTrace);
+          } else
+            throw exception;
+        }
+    },
+    scanElse$1(ifIndentation) {
+      var t1, t2, startIndentation, startNextIndentation, startNextIndentationEnd, _this = this;
+      if (_this._sass0$_peekIndentation$0() !== ifIndentation)
+        return false;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      startIndentation = _this._sass0$_currentIndentation;
+      startNextIndentation = _this._sass0$_nextIndentation;
+      startNextIndentationEnd = _this._sass0$_nextIndentationEnd;
+      _this._sass0$_readIndentation$0();
+      if (t1.scanChar$1(64) && _this.scanIdentifier$1("else"))
+        return true;
+      t1.set$state(new A._SpanScannerState(t1, t2));
+      _this._sass0$_currentIndentation = startIndentation;
+      _this._sass0$_nextIndentation = startNextIndentation;
+      _this._sass0$_nextIndentationEnd = startNextIndentationEnd;
+      return false;
+    },
+    children$1(_, child) {
+      var children = A._setArrayType([], type$.JSArray_Statement_2);
+      this._sass0$_whileIndentedLower$1(new A.SassParser_children_closure0(this, child, children));
+      return children;
+    },
+    statements$1(statement) {
+      var statements, t2, _1_0,
+        t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      if (9 === _0_0 || 32 === _0_0)
+        t1.error$3$length$position(0, string$.Indent, t1._string_scanner$_position, 0);
+      statements = A._setArrayType([], type$.JSArray_Statement_2);
+      for (t2 = t1.string.length; t1._string_scanner$_position !== t2;) {
+        _1_0 = this._sass0$_child$1(statement);
+        if (_1_0 != null)
+          statements.push(_1_0);
+        this._sass0$_readIndentation$0();
+      }
+      return statements;
+    },
+    _sass0$_child$1(child) {
+      var _0_0, _this = this,
+        t1 = _this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label0$0: {
+        if (13 === _1_0 || 10 === _1_0 || 12 === _1_0) {
+          t1 = null;
+          break $label0$0;
+        }
+        if (36 === _1_0) {
+          t1 = _this.variableDeclarationWithoutNamespace$0();
+          break $label0$0;
+        }
+        if (47 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label1$1: {
+            if (47 === _0_0) {
+              t1 = _this._sass0$_silentComment$0();
+              break $label1$1;
+            }
+            if (42 === _0_0) {
+              t1 = _this._sass0$_loudComment$0();
+              break $label1$1;
+            }
+            t1 = child.call$0();
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        t1 = child.call$0();
+        break $label0$0;
+      }
+      return t1;
+    },
+    _sass0$_silentComment$0() {
+      var buffer, parentIndentation, t3, t4, t5, commentPrefix, i, t6, i0, t7, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("//");
+      buffer = new A.StringBuffer("");
+      parentIndentation = _this._sass0$_currentIndentation;
+      t3 = t1.string.length;
+      t4 = 1 + parentIndentation;
+      t5 = 2 + parentIndentation;
+      $label0$0:
+        do {
+          commentPrefix = t1.scanChar$1(47) ? "///" : "//";
+          for (i = commentPrefix.length; true;) {
+            t6 = buffer._contents += commentPrefix;
+            for (i0 = i; i0 < _this._sass0$_currentIndentation - parentIndentation; ++i0) {
+              t6 += A.Primitives_stringFromCharCode(32);
+              buffer._contents = t6;
+            }
+            while (true) {
+              if (t1._string_scanner$_position !== t3) {
+                t7 = t1.peekChar$0();
+                t7 = !(t7 === 10 || t7 === 13 || t7 === 12);
+              } else
+                t7 = false;
+              if (!t7)
+                break;
+              t6 += A.Primitives_stringFromCharCode(t1.readChar$0());
+              buffer._contents = t6;
+            }
+            buffer._contents = t6 + "\n";
+            if (_this._sass0$_peekIndentation$0() < parentIndentation)
+              break $label0$0;
+            if (_this._sass0$_peekIndentation$0() === parentIndentation) {
+              if (t1.peekChar$1(t4) === 47 && t1.peekChar$1(t5) === 47)
+                _this._sass0$_readIndentation$0();
+              break;
+            }
+            _this._sass0$_readIndentation$0();
+          }
+        } while (t1.scan$1("//"));
+      t3 = buffer._contents;
+      return _this.lastSilentComment = new A.SilentComment0(t3.charCodeAt(0) == 0 ? t3 : t3, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _sass0$_loudComment$0() {
+      var t3, t4, buffer, parentIndentation, t5, t6, first, beginningOfComment, t7, end, i, _0_0, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("/*");
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer0(t3, t4);
+      t3._contents = "" + "/*";
+      parentIndentation = _this._sass0$_currentIndentation;
+      for (t5 = t1.string, t6 = t5.length, first = true; true; first = false) {
+        if (first) {
+          beginningOfComment = t1._string_scanner$_position;
+          _this.spaces$0();
+          t7 = t1.peekChar$0();
+          if (t7 === 10 || t7 === 13 || t7 === 12) {
+            _this._sass0$_readIndentation$0();
+            t7 = A.Primitives_stringFromCharCode(32);
+            t3._contents += t7;
+          } else {
+            end = t1._string_scanner$_position;
+            t3._contents += B.JSString_methods.substring$2(t5, beginningOfComment, end);
+          }
+        } else {
+          t7 = t3._contents += "\n";
+          t3._contents = t7 + " * ";
+        }
+        for (i = 3; i < _this._sass0$_currentIndentation - parentIndentation; ++i) {
+          t7 = A.Primitives_stringFromCharCode(32);
+          t3._contents += t7;
+        }
+        for (; t1._string_scanner$_position !== t6;) {
+          _0_0 = t1.peekChar$0();
+          if (10 === _0_0 || 13 === _0_0 || 12 === _0_0)
+            break;
+          if (35 === _0_0) {
+            if (t1.peekChar$1(1) === 123) {
+              t7 = _this.singleInterpolation$0();
+              buffer._interpolation_buffer0$_flushText$0();
+              t4.push(t7);
+            } else {
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+            }
+            continue;
+          }
+          t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t7;
+        }
+        if (_this._sass0$_peekIndentation$0() <= parentIndentation)
+          break;
+        for (; _this._sass0$_lookingAtDoubleNewline$0();) {
+          _this._sass0$_expectNewline$0();
+          t7 = t3._contents += "\n";
+          t3._contents = t7 + " *";
+        }
+        _this._sass0$_readIndentation$0();
+      }
+      t4 = t3._contents;
+      if (!B.JSString_methods.endsWith$1(B.JSString_methods.trimRight$0(t4.charCodeAt(0) == 0 ? t4 : t4), "*/"))
+        t3._contents += " */";
+      return new A.LoudComment0(buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2))));
+    },
+    whitespaceWithoutComments$0() {
+      var t1, t2, next;
+      for (t1 = this.scanner, t2 = t1.string.length; t1._string_scanner$_position !== t2;) {
+        next = t1.peekChar$0();
+        if (next !== 9 && next !== 32)
+          break;
+        t1.readChar$0();
+      }
+    },
+    loudComment$0() {
+      var next,
+        t1 = this.scanner;
+      t1.expect$1("/*");
+      for (; true;) {
+        next = t1.readChar$0();
+        if (next === 10 || next === 13 || next === 12)
+          t1.error$1(0, "expected */.");
+        if (next !== 42)
+          continue;
+        do
+          next = t1.readChar$0();
+        while (next === 42);
+        if (next === 47)
+          break;
+      }
+    },
+    _sass0$_expectNewline$0() {
+      var t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      if (59 === _0_0)
+        t1.error$1(0, string$.semico);
+      if (13 === _0_0) {
+        t1.readChar$0();
+        if (t1.peekChar$0() === 10)
+          t1.readChar$0();
+        return;
+      }
+      if (10 === _0_0 || 12 === _0_0) {
+        t1.readChar$0();
+        return;
+      }
+      t1.error$1(0, "expected newline.");
+    },
+    _sass0$_lookingAtDoubleNewline$0() {
+      var _0_0,
+        t1 = this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label1$1: {
+        if (13 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label0$0: {
+            if (10 === _0_0) {
+              t1 = t1.peekChar$1(2);
+              t1 = t1 === 10 || t1 === 13 || t1 === 12;
+              break $label0$0;
+            }
+            if (13 === _0_0 || 12 === _0_0) {
+              t1 = true;
+              break $label0$0;
+            }
+            t1 = false;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        if (10 === _1_0 || 12 === _1_0) {
+          t1 = t1.peekChar$1(1);
+          t1 = t1 === 10 || t1 === 13 || t1 === 12;
+          break $label1$1;
+        }
+        t1 = false;
+        break $label1$1;
+      }
+      return t1;
+    },
+    _sass0$_whileIndentedLower$1(body) {
+      var t1, t2, childIndentation, indentation, t3, t4, _this = this,
+        parentIndentation = _this._sass0$_currentIndentation;
+      for (t1 = _this.scanner, t2 = t1._sourceFile, childIndentation = null; _this._sass0$_peekIndentation$0() > parentIndentation;) {
+        indentation = _this._sass0$_readIndentation$0();
+        if (childIndentation == null)
+          childIndentation = indentation;
+        if (childIndentation !== indentation) {
+          t3 = t1._string_scanner$_position;
+          t4 = t2.getColumn$1(t3);
+          t1.error$3$length$position(0, "Inconsistent indentation, expected " + childIndentation + " spaces.", t2.getColumn$1(t1._string_scanner$_position), t3 - t4);
+        }
+        body.call$0();
+      }
+    },
+    _sass0$_readIndentation$0() {
+      var t1, _this = this,
+        currentIndentation = _this._sass0$_nextIndentation;
+      if (currentIndentation == null)
+        currentIndentation = _this._sass0$_nextIndentation = _this._sass0$_peekIndentation$0();
+      _this._sass0$_currentIndentation = currentIndentation;
+      t1 = _this._sass0$_nextIndentationEnd;
+      t1.toString;
+      _this.scanner.set$state(t1);
+      _this._sass0$_nextIndentationEnd = _this._sass0$_nextIndentation = null;
+      return currentIndentation;
+    },
+    _sass0$_peekIndentation$0() {
+      var t1, t2, t3, start, containsTab, containsSpace, nextIndentation, _1_0, t4, _this = this,
+        _0_0 = _this._sass0$_nextIndentation;
+      if (_0_0 != null)
+        return _0_0;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      t3 = t1.string.length;
+      if (t2 === t3) {
+        _this._sass0$_nextIndentation = 0;
+        _this._sass0$_nextIndentationEnd = new A._SpanScannerState(t1, t2);
+        return 0;
+      }
+      start = new A._SpanScannerState(t1, t2);
+      if (!_this.scanCharIf$1(new A.SassParser__peekIndentation_closure1()))
+        t1.error$2$position(0, "Expected newline.", t1._string_scanner$_position);
+      containsTab = A._Cell$();
+      containsSpace = A._Cell$();
+      nextIndentation = A._Cell$();
+      do {
+        containsSpace.__late_helper$_value = containsTab.__late_helper$_value = false;
+        nextIndentation.__late_helper$_value = 0;
+        for (; true;) {
+          $label0$0: {
+            _1_0 = t1.peekChar$0();
+            if (32 === _1_0) {
+              containsSpace.__late_helper$_value = true;
+              break $label0$0;
+            }
+            if (9 === _1_0) {
+              containsTab.__late_helper$_value = true;
+              break $label0$0;
+            }
+            break;
+          }
+          t2 = nextIndentation.__late_helper$_value;
+          if (t2 === nextIndentation)
+            A.throwExpression(A.LateError$localNI(""));
+          nextIndentation.__late_helper$_value = t2 + 1;
+          t1.readChar$0();
+        }
+        t2 = t1._string_scanner$_position;
+        if (t2 === t3) {
+          _this._sass0$_nextIndentation = 0;
+          _this._sass0$_nextIndentationEnd = new A._SpanScannerState(t1, t2);
+          t1.set$state(start);
+          return 0;
+        }
+      } while (_this.scanCharIf$1(new A.SassParser__peekIndentation_closure2()));
+      t2 = containsTab._readLocal$0();
+      t3 = containsSpace._readLocal$0();
+      if (t2) {
+        if (t3) {
+          t2 = t1._string_scanner$_position;
+          t3 = t1._sourceFile;
+          t4 = t3.getColumn$1(t2);
+          t1.error$3$length$position(0, "Tabs and spaces may not be mixed.", t3.getColumn$1(t1._string_scanner$_position), t2 - t4);
+        } else if (_this._sass0$_spaces === true) {
+          t2 = t1._string_scanner$_position;
+          t3 = t1._sourceFile;
+          t4 = t3.getColumn$1(t2);
+          t1.error$3$length$position(0, "Expected spaces, was tabs.", t3.getColumn$1(t1._string_scanner$_position), t2 - t4);
+        }
+      } else if (t3 && _this._sass0$_spaces === false) {
+        t2 = t1._string_scanner$_position;
+        t3 = t1._sourceFile;
+        t4 = t3.getColumn$1(t2);
+        t1.error$3$length$position(0, "Expected tabs, was spaces.", t3.getColumn$1(t1._string_scanner$_position), t2 - t4);
+      }
+      _this._sass0$_nextIndentation = nextIndentation._readLocal$0();
+      if (nextIndentation._readLocal$0() > 0)
+        if (_this._sass0$_spaces == null)
+          _this._sass0$_spaces = containsSpace._readLocal$0();
+      _this._sass0$_nextIndentationEnd = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.set$state(start);
+      return nextIndentation._readLocal$0();
+    }
+  };
+  A.SassParser_styleRuleSelector_closure0.prototype = {
+    call$1(char) {
+      return char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.SassParser_children_closure0.prototype = {
+    call$0() {
+      var _0_0 = this.$this._sass0$_child$1(this.child);
+      if (_0_0 != null)
+        this.children.push(_0_0);
+    },
+    $signature: 0
+  };
+  A.SassParser__peekIndentation_closure1.prototype = {
+    call$1(char) {
+      return char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A.SassParser__peekIndentation_closure2.prototype = {
+    call$1(char) {
+      return char === 10 || char === 13 || char === 12;
+    },
+    $signature: 28
+  };
+  A._Exports.prototype = {};
+  A._wrapMain_closure.prototype = {
+    call$1(_) {
+      return A._translateReturnValue(this.main.call$0());
+    },
+    $signature: 105
+  };
+  A._wrapMain_closure0.prototype = {
+    call$1(args) {
+      return A._translateReturnValue(this.main.call$1(A.List_List$from(type$.List_dynamic._as(args), true, type$.String)));
+    },
+    $signature: 105
+  };
+  A.ScssParser0.prototype = {
+    get$indented() {
+      return false;
+    },
+    get$currentIndentation() {
+      return 0;
+    },
+    styleRuleSelector$0() {
+      return this.almostAnyValue$0();
+    },
+    expectStatementSeparator$1($name) {
+      var t1, _0_0;
+      this.whitespaceWithoutComments$0();
+      t1 = this.scanner;
+      if (t1._string_scanner$_position === t1.string.length)
+        return;
+      _0_0 = t1.peekChar$0();
+      if (59 === _0_0 || 125 === _0_0)
+        return;
+      t1.expectChar$1(59);
+    },
+    expectStatementSeparator$0() {
+      return this.expectStatementSeparator$1(null);
+    },
+    atEndOfStatement$0() {
+      var next = this.scanner.peekChar$0();
+      return next == null || next === 59 || next === 125 || next === 123;
+    },
+    lookingAtChildren$0() {
+      return this.scanner.peekChar$0() === 123;
+    },
+    scanElse$1(ifIndentation) {
+      var t3, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      _this.whitespace$0();
+      t3 = t1._string_scanner$_position;
+      if (t1.scanChar$1(64)) {
+        if (_this.scanIdentifier$2$caseSensitive("else", true))
+          return true;
+        if (_this.scanIdentifier$2$caseSensitive("elseif", true)) {
+          A.WarnForDeprecation_warnForDeprecation0(_this.logger, B.Deprecation_xw8, string$.x40elsei, t1.spanFrom$1(new A._SpanScannerState(t1, t3)), null);
+          t1.set$position(t1._string_scanner$_position - 2);
+          return true;
+        }
+      }
+      t1.set$state(new A._SpanScannerState(t1, t2));
+      return false;
+    },
+    children$1(_, child) {
+      var children, _this = this,
+        t1 = _this.scanner;
+      t1.expectChar$1(123);
+      _this.whitespaceWithoutComments$0();
+      children = A._setArrayType([], type$.JSArray_Statement_2);
+      for (; true;)
+        switch (t1.peekChar$0()) {
+          case 36:
+            children.push(_this.variableDeclarationWithoutNamespace$0());
+            break;
+          case 47:
+            switch (t1.peekChar$1(1)) {
+              case 47:
+                children.push(_this._scss0$_silentComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              case 42:
+                children.push(_this._scss0$_loudComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              default:
+                children.push(child.call$0());
+            }
+            break;
+          case 59:
+            t1.readChar$0();
+            _this.whitespaceWithoutComments$0();
+            break;
+          case 125:
+            t1.expectChar$1(125);
+            return children;
+          default:
+            children.push(child.call$0());
+        }
+    },
+    statements$1(statement) {
+      var t1, t2, _0_0, _1_0, _this = this,
+        statements = A._setArrayType([], type$.JSArray_Statement_2);
+      _this.whitespaceWithoutComments$0();
+      for (t1 = _this.scanner, t2 = t1.string.length; t1._string_scanner$_position !== t2;)
+        switch (t1.peekChar$0()) {
+          case 36:
+            statements.push(_this.variableDeclarationWithoutNamespace$0());
+            break;
+          case 47:
+            switch (t1.peekChar$1(1)) {
+              case 47:
+                statements.push(_this._scss0$_silentComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              case 42:
+                statements.push(_this._scss0$_loudComment$0());
+                _this.whitespaceWithoutComments$0();
+                break;
+              default:
+                _0_0 = statement.call$0();
+                if (_0_0 != null)
+                  statements.push(_0_0);
+            }
+            break;
+          case 59:
+            t1.readChar$0();
+            _this.whitespaceWithoutComments$0();
+            break;
+          default:
+            _1_0 = statement.call$0();
+            if (_1_0 != null)
+              statements.push(_1_0);
+        }
+      return statements;
+    },
+    _scss0$_silentComment$0() {
+      var t2, t3, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expect$1("//");
+      t2 = t1.string.length;
+      do {
+        while (true) {
+          if (t1._string_scanner$_position !== t2) {
+            t3 = t1.readChar$0();
+            t3 = !(t3 === 10 || t3 === 13 || t3 === 12);
+          } else
+            t3 = false;
+          if (!t3)
+            break;
+        }
+        if (t1._string_scanner$_position === t2)
+          break;
+        _this.spaces$0();
+      } while (t1.scan$1("//"));
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Silent, t1.spanFrom$1(start));
+      return _this.lastSilentComment = new A.SilentComment0(t1.substring$1(0, start.position), t1.spanFrom$1(start));
+    },
+    _scss0$_loudComment$0() {
+      var t3, t4, buffer, t5, endPosition, t6, result,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("/*");
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer0(t3, t4);
+      t3._contents = "" + "/*";
+      $label0$1:
+        for (; true;)
+          switch (t1.peekChar$0()) {
+            case 35:
+              if (t1.peekChar$1(1) === 123) {
+                t5 = this.singleInterpolation$0();
+                buffer._interpolation_buffer0$_flushText$0();
+                t4.push(t5);
+              } else {
+                t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+                t3._contents += t5;
+              }
+              break;
+            case 42:
+              t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t5;
+              if (t1.peekChar$0() !== 47)
+                continue $label0$1;
+              t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t5;
+              endPosition = t1._string_scanner$_position;
+              t5 = t1._sourceFile;
+              t6 = new A._SpanScannerState(t1, t2).position;
+              t1 = new A._FileSpan(t5, t6, endPosition);
+              t1._FileSpan$3(t5, t6, endPosition);
+              t6 = type$.Object;
+              t5 = A.List_List$of(t4, true, t6);
+              t2 = t3._contents;
+              if (t2.length !== 0)
+                t5.push(t2.charCodeAt(0) == 0 ? t2 : t2);
+              result = A.List_List$from(t5, false, t6);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t2 = new A.Interpolation0(result, t1);
+              t2.Interpolation$20(t5, t1);
+              return new A.LoudComment0(t2);
+            case 13:
+              t1.readChar$0();
+              if (t1.peekChar$0() !== 10) {
+                t5 = A.Primitives_stringFromCharCode(10);
+                t3._contents += t5;
+              }
+              break;
+            case 12:
+              t1.readChar$0();
+              t5 = A.Primitives_stringFromCharCode(10);
+              t3._contents += t5;
+              break;
+            default:
+              t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t5;
+          }
+    }
+  };
+  A.Selector0.prototype = {
+    assertNotBogus$1$name($name) {
+      if (!this.accept$1(B._IsBogusVisitor_true0))
+        return;
+      A.warnForDeprecation0("$" + $name + ": " + (this.toString$0(0) + string$.x20is_nov), B.Deprecation_5pG);
+    },
+    toString$0(_) {
+      var visitor = A._SerializeVisitor$0(null, true, null, true, false, null, true);
+      this.accept$1(visitor);
+      return visitor._serialize0$_buffer.toString$0(0);
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._IsInvisibleVisitor2.prototype = {
+    visitSelectorList$1(list) {
+      return B.JSArray_methods.every$1(list.components, this.get$visitComplexSelector());
+    },
+    visitComplexSelector$1(complex) {
+      var t1;
+      if (!this.super$AnySelectorVisitor$visitComplexSelector0(complex))
+        t1 = this.includeBogus && complex.accept$1(B._IsBogusVisitor_false0);
+      else
+        t1 = true;
+      return t1;
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      return true;
+    },
+    visitPseudoSelector$1(pseudo) {
+      var t1,
+        _0_0 = pseudo.selector;
+      if (_0_0 != null) {
+        if (pseudo.name === "not")
+          t1 = this.includeBogus && _0_0.accept$1(B._IsBogusVisitor_true0);
+        else
+          t1 = this.visitSelectorList$1(_0_0);
+        return t1;
+      } else
+        return false;
+    }
+  };
+  A._IsBogusVisitor0.prototype = {
+    visitComplexSelector$1(complex) {
+      var t2,
+        t1 = complex.components;
+      if (t1.length === 0)
+        return complex.leadingCombinators.length !== 0;
+      else {
+        t2 = this.includeLeadingCombinator ? 0 : 1;
+        return complex.leadingCombinators.length > t2 || B.JSArray_methods.get$last(t1).combinators.length !== 0 || B.JSArray_methods.any$1(t1, new A._IsBogusVisitor_visitComplexSelector_closure0(this));
+      }
+    },
+    visitPseudoSelector$1(pseudo) {
+      var selector = pseudo.selector;
+      if (selector == null)
+        return false;
+      return pseudo.name === "has" ? selector.accept$1(B._IsBogusVisitor_false0) : selector.accept$1(B._IsBogusVisitor_true0);
+    }
+  };
+  A._IsBogusVisitor_visitComplexSelector_closure0.prototype = {
+    call$1(component) {
+      return component.combinators.length > 1 || this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature: 51
+  };
+  A._IsUselessVisitor0.prototype = {
+    visitComplexSelector$1(complex) {
+      return complex.leadingCombinators.length > 1 || B.JSArray_methods.any$1(complex.components, new A._IsUselessVisitor_visitComplexSelector_closure0(this));
+    },
+    visitPseudoSelector$1(pseudo) {
+      return pseudo.accept$1(B._IsBogusVisitor_true0);
+    }
+  };
+  A._IsUselessVisitor_visitComplexSelector_closure0.prototype = {
+    call$1(component) {
+      return component.combinators.length > 1 || this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature: 51
+  };
+  A.__IsBogusVisitor_Object_AnySelectorVisitor0.prototype = {};
+  A.__IsInvisibleVisitor_Object_AnySelectorVisitor0.prototype = {};
+  A.__IsUselessVisitor_Object_AnySelectorVisitor0.prototype = {};
+  A.SelectorExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitSelectorExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "&";
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A._nest_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = {},
+        selectors = J.$index$asx($arguments, 0).get$asList();
+      if (selectors.length === 0)
+        throw A.wrapException(A.SassScriptException$0(string$.x24selec, null));
+      t1.first = true;
+      return new A.MappedListIterable(selectors, new A._nest__closure1(t1), A._arrayInstanceType(selectors)._eval$1("MappedListIterable<1,SelectorList0>")).reduce$1(0, new A._nest__closure2()).get$asSassList();
+    },
+    $signature: 22
+  };
+  A._nest__closure1.prototype = {
+    call$1(selector) {
+      var t1 = this._box_0,
+        result = A.SassApiValue_assertSelector0(selector, !t1.first, null);
+      t1.first = false;
+      return result;
+    },
+    $signature: 195
+  };
+  A._nest__closure2.prototype = {
+    call$2($parent, child) {
+      return child.nestWithin$1($parent);
+    },
+    $signature: 214
+  };
+  A._append_closure1.prototype = {
+    call$1($arguments) {
+      var t1,
+        selectors = J.$index$asx($arguments, 0).get$asList();
+      if (selectors.length === 0)
+        throw A.wrapException(A.SassScriptException$0(string$.x24selec, null));
+      t1 = A.EvaluationContext_currentOrNull0();
+      return new A.MappedListIterable(selectors, new A._append__closure1(), A._arrayInstanceType(selectors)._eval$1("MappedListIterable<1,SelectorList0>")).reduce$1(0, new A._append__closure2((t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan())).get$asSassList();
+    },
+    $signature: 22
+  };
+  A._append__closure1.prototype = {
+    call$1(selector) {
+      return A.SassApiValue_assertSelector0(selector, false, null);
+    },
+    $signature: 195
+  };
+  A._append__closure2.prototype = {
+    call$2($parent, child) {
+      var t1 = child.components,
+        t2 = this.span;
+      return A.SelectorList$0(new A.MappedListIterable(t1, new A._append___closure0($parent, t2), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,ComplexSelector0>")), t2).nestWithin$1($parent);
+    },
+    $signature: 214
+  };
+  A._append___closure0.prototype = {
+    call$1(complex) {
+      var _0_0, t1, component, rest, newCompound, t2, _null = null;
+      if (complex.leadingCombinators.length !== 0)
+        throw A.wrapException(A.SassScriptException$0("Can't append " + complex.toString$0(0) + " to " + this.parent.toString$0(0) + ".", _null));
+      _0_0 = complex.components;
+      t1 = _0_0.length >= 1;
+      if (t1) {
+        component = _0_0[0];
+        rest = B.JSArray_methods.sublist$1(_0_0, 1);
+      } else {
+        rest = _null;
+        component = rest;
+      }
+      if (!t1)
+        throw A.wrapException(A.StateError$("Pattern matching error"));
+      newCompound = A._prependParent0(component.selector);
+      if (newCompound == null)
+        throw A.wrapException(A.SassScriptException$0("Can't append " + complex.toString$0(0) + " to " + this.parent.toString$0(0) + ".", _null));
+      t1 = this.span;
+      t2 = A._setArrayType([new A.ComplexSelectorComponent0(newCompound, A.List_List$unmodifiable(component.combinators, type$.CssValue_Combinator_2), t1)], type$.JSArray_ComplexSelectorComponent_2);
+      B.JSArray_methods.addAll$1(t2, rest);
+      return A.ComplexSelector$0(B.List_empty14, t2, t1, false);
+    },
+    $signature: 56
+  };
+  A._extend_closure0.prototype = {
+    call$1($arguments) {
+      var target, source,
+        _s8_ = "selector",
+        _s8_0 = "extendee",
+        _s8_1 = "extender",
+        t1 = J.getInterceptor$asx($arguments),
+        selector = A.SassApiValue_assertSelector0(t1.$index($arguments, 0), false, _s8_);
+      selector.assertNotBogus$1$name(_s8_);
+      target = A.SassApiValue_assertSelector0(t1.$index($arguments, 1), false, _s8_0);
+      target.assertNotBogus$1$name(_s8_0);
+      source = A.SassApiValue_assertSelector0(t1.$index($arguments, 2), false, _s8_1);
+      source.assertNotBogus$1$name(_s8_1);
+      t1 = A.EvaluationContext_currentOrNull0();
+      return A.ExtensionStore__extendOrReplace0(selector, source, target, B.ExtendMode_allTargets_allTargets0, (t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan()).get$asSassList();
+    },
+    $signature: 22
+  };
+  A._replace_closure0.prototype = {
+    call$1($arguments) {
+      var target, source,
+        _s8_ = "selector",
+        _s8_0 = "original",
+        _s11_ = "replacement",
+        t1 = J.getInterceptor$asx($arguments),
+        selector = A.SassApiValue_assertSelector0(t1.$index($arguments, 0), false, _s8_);
+      selector.assertNotBogus$1$name(_s8_);
+      target = A.SassApiValue_assertSelector0(t1.$index($arguments, 1), false, _s8_0);
+      target.assertNotBogus$1$name(_s8_0);
+      source = A.SassApiValue_assertSelector0(t1.$index($arguments, 2), false, _s11_);
+      source.assertNotBogus$1$name(_s11_);
+      t1 = A.EvaluationContext_currentOrNull0();
+      return A.ExtensionStore__extendOrReplace0(selector, source, target, B.ExtendMode_replace_replace0, (t1 == null ? A.throwExpression(A.StateError$(string$.No_Sass)) : t1).get$currentCallableSpan()).get$asSassList();
+    },
+    $signature: 22
+  };
+  A._unify_closure0.prototype = {
+    call$1($arguments) {
+      var selector2,
+        _s9_ = "selector1",
+        _s9_0 = "selector2",
+        t1 = J.getInterceptor$asx($arguments),
+        selector1 = A.SassApiValue_assertSelector0(t1.$index($arguments, 0), false, _s9_);
+      selector1.assertNotBogus$1$name(_s9_);
+      selector2 = A.SassApiValue_assertSelector0(t1.$index($arguments, 1), false, _s9_0);
+      selector2.assertNotBogus$1$name(_s9_0);
+      t1 = selector1.unify$1(selector2);
+      t1 = t1 == null ? null : t1.get$asSassList();
+      return t1 == null ? B.C__SassNull0 : t1;
+    },
+    $signature: 3
+  };
+  A._isSuperselector_closure0.prototype = {
+    call$1($arguments) {
+      var selector2,
+        t1 = J.getInterceptor$asx($arguments),
+        selector1 = A.SassApiValue_assertSelector0(t1.$index($arguments, 0), false, "super");
+      selector1.assertNotBogus$1$name("super");
+      selector2 = A.SassApiValue_assertSelector0(t1.$index($arguments, 1), false, "sub");
+      selector2.assertNotBogus$1$name("sub");
+      return A.listIsSuperselector0(selector1.components, selector2.components) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+    },
+    $signature: 21
+  };
+  A._simpleSelectors_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = A.SassApiValue_assertCompoundSelector0(J.$index$asx($arguments, 0), "selector").components;
+      return A.SassList$0(new A.MappedListIterable(t1, new A._simpleSelectors__closure0(), A._arrayInstanceType(t1)._eval$1("MappedListIterable<1,Value0>")), B.ListSeparator_ECn0, false);
+    },
+    $signature: 22
+  };
+  A._simpleSelectors__closure0.prototype = {
+    call$1(simple) {
+      return new A.SassString0(A.serializeSelector0(simple, true), false);
+    },
+    $signature: 531
+  };
+  A._parse_closure0.prototype = {
+    call$1($arguments) {
+      return A.SassApiValue_assertSelector0(J.$index$asx($arguments, 0), false, "selector").get$asSassList();
+    },
+    $signature: 22
+  };
+  A.SelectorParser0.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.SelectorParser_parse_closure0(this));
+    },
+    parseCompoundSelector$0() {
+      return this.wrapSpanFormatException$1(new A.SelectorParser_parseCompoundSelector_closure0(this));
+    },
+    _selector$_selectorList$0() {
+      var t4, t5, lineBreak, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = t1._sourceFile,
+        previousLine = t3.getLine$1(t2),
+        components = A._setArrayType([_this._selector$_complexSelector$0()], type$.JSArray_ComplexSelector_2);
+      _this.whitespace$0();
+      for (t4 = t1.string.length; t1.scanChar$1(44);) {
+        _this.whitespace$0();
+        if (t1.peekChar$0() === 44)
+          continue;
+        t5 = t1._string_scanner$_position;
+        if (t5 === t4)
+          break;
+        lineBreak = t3.getLine$1(t5) !== previousLine;
+        if (lineBreak)
+          previousLine = t3.getLine$1(t1._string_scanner$_position);
+        components.push(_this._selector$_complexSelector$1$lineBreak(lineBreak));
+      }
+      return A.SelectorList$0(components, _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _selector$_complexSelector$1$lineBreak(lineBreak) {
+      var t4, lastCompound, initialCombinators, _0_0, t5, result, _this = this,
+        _s18_ = "expected selector.",
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        componentStart = new A._SpanScannerState(t1, t2),
+        t3 = type$.JSArray_CssValue_Combinator_2,
+        combinators = A._setArrayType([], t3),
+        components = A._setArrayType([], type$.JSArray_ComplexSelectorComponent_2);
+      for (t4 = type$.CssValue_Combinator_2, lastCompound = null, initialCombinators = null; true;) {
+        _this.whitespace$0();
+        _0_0 = t1.peekChar$0();
+        if (43 === _0_0) {
+          t5 = t1._string_scanner$_position;
+          t1.readChar$0();
+          combinators.push(new A.CssValue0(B.Combinator_gRV0, _this.spanFrom$1(new A._SpanScannerState(t1, t5)), t4));
+          continue;
+        }
+        if (62 === _0_0) {
+          t5 = t1._string_scanner$_position;
+          t1.readChar$0();
+          combinators.push(new A.CssValue0(B.Combinator_8I80, _this.spanFrom$1(new A._SpanScannerState(t1, t5)), t4));
+          continue;
+        }
+        if (126 === _0_0) {
+          t5 = t1._string_scanner$_position;
+          t1.readChar$0();
+          combinators.push(new A.CssValue0(B.Combinator_y180, _this.spanFrom$1(new A._SpanScannerState(t1, t5)), t4));
+          continue;
+        }
+        if (_0_0 == null)
+          break;
+        if (91 !== _0_0)
+          if (46 !== _0_0)
+            if (35 !== _0_0)
+              if (37 !== _0_0)
+                if (58 !== _0_0)
+                  if (38 !== _0_0)
+                    if (42 !== _0_0)
+                      if (124 !== _0_0)
+                        t5 = _this.lookingAtIdentifier$0();
+                      else
+                        t5 = true;
+                    else
+                      t5 = true;
+                  else
+                    t5 = true;
+                else
+                  t5 = true;
+              else
+                t5 = true;
+            else
+              t5 = true;
+          else
+            t5 = true;
+        else
+          t5 = true;
+        if (t5) {
+          if (lastCompound != null) {
+            t5 = _this.spanFrom$1(componentStart);
+            result = A.List_List$from(combinators, false, t4);
+            result.fixed$length = Array;
+            result.immutable$list = Array;
+            components.push(new A.ComplexSelectorComponent0(lastCompound, result, t5));
+          } else if (combinators.length !== 0) {
+            componentStart = new A._SpanScannerState(t1, t1._string_scanner$_position);
+            initialCombinators = combinators;
+          }
+          lastCompound = _this._selector$_compoundSelector$0();
+          combinators = A._setArrayType([], t3);
+          if (t1.peekChar$0() === 38)
+            t1.error$1(0, string$.x22x26__ma);
+          continue;
+        }
+        break;
+      }
+      t3 = combinators.length !== 0;
+      if (t3 && _this._selector$_plainCss)
+        t1.error$1(0, _s18_);
+      else if (lastCompound != null) {
+        t3 = _this.spanFrom$1(componentStart);
+        components.push(new A.ComplexSelectorComponent0(lastCompound, A.List_List$unmodifiable(combinators, t4), t3));
+      } else if (t3)
+        initialCombinators = combinators;
+      else
+        t1.error$1(0, _s18_);
+      t3 = initialCombinators == null ? B.List_empty14 : initialCombinators;
+      return A.ComplexSelector$0(t3, components, _this.spanFrom$1(new A._SpanScannerState(t1, t2)), lineBreak);
+    },
+    _selector$_complexSelector$0() {
+      return this._selector$_complexSelector$1$lineBreak(false);
+    },
+    _selector$_compoundSelector$0() {
+      var t3, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        components = A._setArrayType([_this._selector$_simpleSelector$0()], type$.JSArray_SimpleSelector_2);
+      for (t3 = _this._selector$_plainCss; _this._selector$_isSimpleSelectorStart$1(t1.peekChar$0());)
+        components.push(_this._selector$_simpleSelector$1$allowParent(t3));
+      return A.CompoundSelector$0(components, _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _selector$_simpleSelector$1$allowParent(allowParent) {
+      var t2, $name, text, t3, suffix, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (allowParent == null)
+        allowParent = _this._selector$_allowParent;
+      switch (t1.peekChar$0()) {
+        case 91:
+          return _this._selector$_attributeSelector$0();
+        case 46:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(46);
+          return new A.ClassSelector0(_this.identifier$0(), _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+        case 35:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(35);
+          return new A.IDSelector0(_this.identifier$0(), _this.spanFrom$1(new A._SpanScannerState(t1, t2)));
+        case 37:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(37);
+          $name = _this.identifier$0();
+          t2 = _this.spanFrom$1(new A._SpanScannerState(t1, t2));
+          if (_this._selector$_plainCss)
+            _this.error$2(0, string$.Placeh, t1.spanFrom$1(start));
+          return new A.PlaceholderSelector0($name, t2);
+        case 58:
+          return _this._selector$_pseudoSelector$0();
+        case 38:
+          t2 = t1._string_scanner$_position;
+          t1.expectChar$1(38);
+          if (_this.lookingAtIdentifierBody$0()) {
+            text = new A.StringBuffer("");
+            _this._parser0$_identifierBody$1(text);
+            if (text._contents.length === 0)
+              t1.error$1(0, "Expected identifier body.");
+            t3 = text._contents;
+            suffix = t3.charCodeAt(0) == 0 ? t3 : t3;
+          } else
+            suffix = null;
+          if (_this._selector$_plainCss && suffix != null)
+            t1.error$3$length$position(0, string$.Parent, t1._string_scanner$_position - t2, t2);
+          t2 = _this.spanFrom$1(new A._SpanScannerState(t1, t2));
+          if (!allowParent)
+            _this.error$2(0, "Parent selectors aren't allowed here.", t1.spanFrom$1(start));
+          return new A.ParentSelector0(suffix, t2);
+        default:
+          return _this._selector$_typeOrUniversalSelector$0();
+      }
+    },
+    _selector$_simpleSelector$0() {
+      return this._selector$_simpleSelector$1$allowParent(null);
+    },
+    _selector$_attributeSelector$0() {
+      var $name, operator, next, value, modifier, _this = this, _null = null,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(91);
+      _this.whitespace$0();
+      $name = _this._selector$_attributeName$0();
+      _this.whitespace$0();
+      if (t1.scanChar$1(93))
+        return new A.AttributeSelector0($name, _null, _null, _null, _this.spanFrom$1(start));
+      operator = _this._selector$_attributeOperator$0();
+      _this.whitespace$0();
+      next = t1.peekChar$0();
+      value = next === 39 || next === 34 ? _this.string$0() : _this.identifier$0();
+      _this.whitespace$0();
+      next = t1.peekChar$0();
+      modifier = next != null && A.CharacterExtension_get_isAlphabetic0(next) ? A.Primitives_stringFromCharCode(t1.readChar$0()) : _null;
+      t1.expectChar$1(93);
+      return new A.AttributeSelector0($name, operator, value, modifier, _this.spanFrom$1(start));
+    },
+    _selector$_attributeName$0() {
+      var nameOrNamespace, _this = this,
+        t1 = _this.scanner;
+      if (t1.scanChar$1(42)) {
+        t1.expectChar$1(124);
+        return new A.QualifiedName0(_this.identifier$0(), "*");
+      }
+      if (t1.scanChar$1(124))
+        return new A.QualifiedName0(_this.identifier$0(), "");
+      nameOrNamespace = _this.identifier$0();
+      if (t1.peekChar$0() !== 124 || t1.peekChar$1(1) === 61)
+        return new A.QualifiedName0(nameOrNamespace, null);
+      t1.readChar$0();
+      return new A.QualifiedName0(_this.identifier$0(), nameOrNamespace);
+    },
+    _selector$_attributeOperator$0() {
+      var t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      switch (t1.readChar$0()) {
+        case 61:
+          return B.AttributeOperator_4QF0;
+        case 126:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_yT80;
+        case 124:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_jqB0;
+        case 94:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_cMb0;
+        case 36:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_qhE0;
+        case 42:
+          t1.expectChar$1(61);
+          return B.AttributeOperator_61T0;
+        default:
+          t1.error$2$position(0, 'Expected "]".', t2);
+      }
+    },
+    _selector$_pseudoSelector$0() {
+      var element, $name, unvendored, selector, argument, t2, _this = this, _null = null,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(58);
+      element = t1.scanChar$1(58);
+      $name = _this.identifier$0();
+      if (!t1.scanChar$1(40))
+        return A.PseudoSelector$0($name, _this.spanFrom$1(start), _null, element, _null);
+      _this.whitespace$0();
+      unvendored = A.unvendor0($name);
+      if (element)
+        if ($._selectorPseudoElements0.contains$1(0, unvendored)) {
+          selector = _this._selector$_selectorList$0();
+          argument = _null;
+        } else {
+          argument = _this.declarationValue$1$allowEmpty(true);
+          selector = _null;
+        }
+      else if ($._selectorPseudoClasses0.contains$1(0, unvendored)) {
+        selector = _this._selector$_selectorList$0();
+        argument = _null;
+      } else if (unvendored === "nth-child" || unvendored === "nth-last-child") {
+        argument = _this._selector$_aNPlusB$0();
+        _this.whitespace$0();
+        t2 = t1.peekChar$1(-1);
+        if ((t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12) && t1.peekChar$0() !== 41) {
+          _this.expectIdentifier$1("of");
+          argument += " of";
+          _this.whitespace$0();
+          selector = _this._selector$_selectorList$0();
+        } else
+          selector = _null;
+      } else {
+        argument = B.JSString_methods.trimRight$0(_this.declarationValue$1$allowEmpty(true));
+        selector = _null;
+      }
+      t1.expectChar$1(41);
+      return A.PseudoSelector$0($name, _this.spanFrom$1(start), argument, element, selector);
+    },
+    _selector$_aNPlusB$0() {
+      var t1, _0_0, t2, $self, next, _this = this;
+      $label0$0: {
+        t1 = _this.scanner;
+        _0_0 = t1.peekChar$0();
+        if (101 === _0_0 || 69 === _0_0) {
+          _this.expectIdentifier$1("even");
+          return "even";
+        }
+        if (111 === _0_0 || 79 === _0_0) {
+          _this.expectIdentifier$1("odd");
+          return "odd";
+        }
+        if (43 === _0_0 || 45 === _0_0) {
+          t2 = "" + A.Primitives_stringFromCharCode(t1.readChar$0());
+          break $label0$0;
+        }
+        t2 = "";
+      }
+      $self = t1.peekChar$0();
+      if ($self != null && $self >= 48 && $self <= 57) {
+        do {
+          t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+          $self = t1.peekChar$0();
+        } while ($self != null && $self >= 48 && $self <= 57);
+        _this.whitespace$0();
+        if (!_this.scanIdentChar$1(110))
+          return t2.charCodeAt(0) == 0 ? t2 : t2;
+      } else
+        _this.expectIdentChar$1(110);
+      t2 += A.Primitives_stringFromCharCode(110);
+      _this.whitespace$0();
+      next = t1.peekChar$0();
+      if (next !== 43 && next !== 45)
+        return t2.charCodeAt(0) == 0 ? t2 : t2;
+      t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+      _this.whitespace$0();
+      $self = t1.peekChar$0();
+      if (!($self != null && $self >= 48 && $self <= 57))
+        t1.error$1(0, "Expected a number.");
+      do {
+        t2 += A.Primitives_stringFromCharCode(t1.readChar$0());
+        $self = t1.peekChar$0();
+      } while ($self != null && $self >= 48 && $self <= 57);
+      return t2.charCodeAt(0) == 0 ? t2 : t2;
+    },
+    _selector$_typeOrUniversalSelector$0() {
+      var nameOrNamespace, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (t1.scanChar$1(42)) {
+        if (!t1.scanChar$1(124))
+          return new A.UniversalSelector0(null, _this.spanFrom$1(start));
+        return t1.scanChar$1(42) ? new A.UniversalSelector0("*", _this.spanFrom$1(start)) : new A.TypeSelector0(new A.QualifiedName0(_this.identifier$0(), "*"), _this.spanFrom$1(start));
+      } else if (t1.scanChar$1(124))
+        return t1.scanChar$1(42) ? new A.UniversalSelector0("", _this.spanFrom$1(start)) : new A.TypeSelector0(new A.QualifiedName0(_this.identifier$0(), ""), _this.spanFrom$1(start));
+      nameOrNamespace = _this.identifier$0();
+      if (!t1.scanChar$1(124))
+        return new A.TypeSelector0(new A.QualifiedName0(nameOrNamespace, null), _this.spanFrom$1(start));
+      else if (t1.scanChar$1(42))
+        return new A.UniversalSelector0(nameOrNamespace, _this.spanFrom$1(start));
+      else
+        return new A.TypeSelector0(new A.QualifiedName0(_this.identifier$0(), nameOrNamespace), _this.spanFrom$1(start));
+    },
+    _selector$_isSimpleSelectorStart$1(character) {
+      var t1;
+      $label0$0: {
+        if (42 === character || 91 === character || 46 === character || 35 === character || 37 === character || 58 === character) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (38 === character) {
+          t1 = this._selector$_plainCss;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    }
+  };
+  A.SelectorParser_parse_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        selector = t1._selector$_selectorList$0();
+      t1 = t1.scanner;
+      if (t1._string_scanner$_position !== t1.string.length)
+        t1.error$1(0, "expected selector.");
+      return selector;
+    },
+    $signature: 532
+  };
+  A.SelectorParser_parseCompoundSelector_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        compound = t1._selector$_compoundSelector$0();
+      t1 = t1.scanner;
+      if (t1._string_scanner$_position !== t1.string.length)
+        t1.error$1(0, "expected selector.");
+      return compound;
+    },
+    $signature: 533
+  };
+  A.SelectorSearchVisitor0.prototype = {
+    visitAttributeSelector$1(attribute) {
+      return null;
+    },
+    visitClassSelector$1(klass) {
+      return null;
+    },
+    visitIDSelector$1(id) {
+      return null;
+    },
+    visitParentSelector$1(placeholder) {
+      return null;
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      return null;
+    },
+    visitTypeSelector$1(type) {
+      return null;
+    },
+    visitUniversalSelector$1(universal) {
+      return null;
+    },
+    visitComplexSelector$1(complex) {
+      return A.IterableExtension_search0(complex.components, new A.SelectorSearchVisitor_visitComplexSelector_closure0(this));
+    },
+    visitCompoundSelector$1(compound) {
+      return A.IterableExtension_search0(compound.components, new A.SelectorSearchVisitor_visitCompoundSelector_closure0(this));
+    },
+    visitPseudoSelector$1(pseudo) {
+      return A.NullableExtension_andThen0(pseudo.selector, this.get$visitSelectorList());
+    },
+    visitSelectorList$1(list) {
+      return A.IterableExtension_search0(list.components, this.get$visitComplexSelector());
+    }
+  };
+  A.SelectorSearchVisitor_visitComplexSelector_closure0.prototype = {
+    call$1(component) {
+      return this.$this.visitCompoundSelector$1(component.selector);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("SelectorSearchVisitor0.T?(ComplexSelectorComponent0)");
+    }
+  };
+  A.SelectorSearchVisitor_visitCompoundSelector_closure0.prototype = {
+    call$1(simple) {
+      return simple.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("SelectorSearchVisitor0.T?(SimpleSelector0)");
+    }
+  };
+  A.serialize_closure0.prototype = {
+    call$1(codeUnit) {
+      return codeUnit > 127;
+    },
+    $signature: 45
+  };
+  A._SerializeVisitor0.prototype = {
+    visitCssStylesheet$1(node) {
+      var t1, t2, t3, t4, t5, t6, t7, previous, previous0, t8, _this = this;
+      for (t1 = J.get$iterator$ax(node.get$children(node)), t2 = !_this._serialize0$_inspect, t3 = _this._serialize0$_style === B.OutputStyle_10, t4 = !t3, t5 = type$.CssParentNode_2, t6 = _this._serialize0$_buffer, t7 = _this._lineFeed.text, previous = null; t1.moveNext$0();) {
+        previous0 = t1.get$current(t1);
+        if (t2)
+          t8 = t3 ? previous0.accept$1(B._IsInvisibleVisitor_true_true0) : previous0.accept$1(B._IsInvisibleVisitor_true_false0);
+        else
+          t8 = false;
+        if (t8)
+          continue;
+        if (previous != null) {
+          if (t5._is(previous) ? previous.get$isChildless() : !(previous instanceof A.ModifiableCssComment0))
+            t6.writeCharCode$1(59);
+          if (_this._serialize0$_isTrailingComment$2(previous0, previous)) {
+            if (t4)
+              t6.writeCharCode$1(32);
+          } else {
+            if (t4)
+              t6.write$1(0, t7);
+            if (previous.get$isGroupEnd())
+              if (t4)
+                t6.write$1(0, t7);
+          }
+        }
+        previous0.accept$1(_this);
+        previous = previous0;
+      }
+      if (previous != null)
+        t1 = (t5._is(previous) ? previous.get$isChildless() : !(previous instanceof A.ModifiableCssComment0)) && t4;
+      else
+        t1 = false;
+      if (t1)
+        t6.writeCharCode$1(59);
+    },
+    visitCssComment$1(node) {
+      this._serialize0$_buffer.forSpan$2(node.span, new A._SerializeVisitor_visitCssComment_closure0(this, node));
+    },
+    visitCssAtRule$1(node) {
+      var t1, _this = this;
+      _this._serialize0$_writeIndentation$0();
+      t1 = _this._serialize0$_buffer;
+      t1.forSpan$2(node.span, new A._SerializeVisitor_visitCssAtRule_closure0(_this, node));
+      if (!node.isChildless) {
+        if (_this._serialize0$_style !== B.OutputStyle_10)
+          t1.writeCharCode$1(32);
+        _this._serialize0$_visitChildren$1(node);
+      }
+    },
+    visitCssMediaRule$1(node) {
+      var t1, _this = this;
+      _this._serialize0$_writeIndentation$0();
+      t1 = _this._serialize0$_buffer;
+      t1.forSpan$2(node.span, new A._SerializeVisitor_visitCssMediaRule_closure0(_this, node));
+      if (_this._serialize0$_style !== B.OutputStyle_10)
+        t1.writeCharCode$1(32);
+      _this._serialize0$_visitChildren$1(node);
+    },
+    visitCssImport$1(node) {
+      this._serialize0$_writeIndentation$0();
+      this._serialize0$_buffer.forSpan$2(node.span, new A._SerializeVisitor_visitCssImport_closure0(this, node));
+    },
+    _serialize0$_writeImportUrl$1(url) {
+      var urlContents, maybeQuote, _this = this;
+      if (_this._serialize0$_style !== B.OutputStyle_10 || url.charCodeAt(0) !== 117) {
+        _this._serialize0$_buffer.write$1(0, url);
+        return;
+      }
+      urlContents = B.JSString_methods.substring$2(url, 4, url.length - 1);
+      maybeQuote = urlContents.charCodeAt(0);
+      if (maybeQuote === 39 || maybeQuote === 34)
+        _this._serialize0$_buffer.write$1(0, urlContents);
+      else
+        _this._serialize0$_visitQuotedString$1(urlContents);
+    },
+    visitCssKeyframeBlock$1(node) {
+      var t1, _this = this;
+      _this._serialize0$_writeIndentation$0();
+      t1 = _this._serialize0$_buffer;
+      t1.forSpan$2(node.selector.span, new A._SerializeVisitor_visitCssKeyframeBlock_closure0(_this, node));
+      if (_this._serialize0$_style !== B.OutputStyle_10)
+        t1.writeCharCode$1(32);
+      _this._serialize0$_visitChildren$1(node);
+    },
+    _serialize0$_visitMediaQuery$1(query) {
+      var t1, _1_0, _2_0, condition, operator, t2, _this = this,
+        _0_0 = query.modifier;
+      if (_0_0 != null) {
+        t1 = _this._serialize0$_buffer;
+        t1.write$1(0, _0_0);
+        t1.writeCharCode$1(32);
+      }
+      _1_0 = query.type;
+      if (_1_0 != null) {
+        t1 = _this._serialize0$_buffer;
+        t1.write$1(0, _1_0);
+        if (query.conditions.length !== 0)
+          t1.write$1(0, " and ");
+      }
+      _2_0 = query.conditions;
+      if (_2_0.length === 1)
+        t1 = B.JSString_methods.startsWith$1(_2_0[0], "(not ");
+      else
+        t1 = false;
+      if (t1) {
+        t1 = _this._serialize0$_buffer;
+        t1.write$1(0, "not ");
+        condition = B.JSArray_methods.get$first(_2_0);
+        t1.write$1(0, B.JSString_methods.substring$2(condition, 5, condition.length - 1));
+      } else {
+        operator = query.conjunction ? "and" : "or";
+        t1 = _this._serialize0$_style === B.OutputStyle_10 ? operator + " " : " " + operator + " ";
+        t2 = _this._serialize0$_buffer;
+        _this._serialize0$_writeBetween$3(_2_0, t1, t2.get$write(t2));
+      }
+    },
+    visitCssStyleRule$1(node) {
+      var t1, _this = this;
+      _this._serialize0$_writeIndentation$0();
+      t1 = _this._serialize0$_buffer;
+      t1.forSpan$2(node._style_rule0$_selector._box0$_inner.value.span, new A._SerializeVisitor_visitCssStyleRule_closure0(_this, node));
+      if (_this._serialize0$_style !== B.OutputStyle_10)
+        t1.writeCharCode$1(32);
+      _this._serialize0$_visitChildren$1(node);
+    },
+    visitCssSupportsRule$1(node) {
+      var t1, _this = this;
+      _this._serialize0$_writeIndentation$0();
+      t1 = _this._serialize0$_buffer;
+      t1.forSpan$2(node.span, new A._SerializeVisitor_visitCssSupportsRule_closure0(_this, node));
+      if (_this._serialize0$_style !== B.OutputStyle_10)
+        t1.writeCharCode$1(32);
+      _this._serialize0$_visitChildren$1(node);
+    },
+    visitCssDeclaration$1(node) {
+      var error, stackTrace, error0, stackTrace0, t1, t2, exception, _this = this;
+      _this._serialize0$_writeIndentation$0();
+      t1 = node.name;
+      _this._serialize0$_write$1(t1);
+      t2 = _this._serialize0$_buffer;
+      t2.writeCharCode$1(58);
+      if (J.startsWith$1$s(t1.value, "--") && node.parsedAsCustomProperty)
+        t2.forSpan$2(node.value.span, new A._SerializeVisitor_visitCssDeclaration_closure1(_this, node));
+      else {
+        if (_this._serialize0$_style !== B.OutputStyle_10)
+          t2.writeCharCode$1(32);
+        try {
+          t2.forSpan$2(node.valueSpanForMap, new A._SerializeVisitor_visitCssDeclaration_closure2(_this, node));
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (t1 instanceof A.MultiSpanSassScriptException0) {
+            error = t1;
+            stackTrace = A.getTraceFromException(exception);
+            A.throwWithTrace0(A.MultiSpanSassException$0(error.message, node.value.span, error.primaryLabel, error.secondarySpans, null), error, stackTrace);
+          } else if (t1 instanceof A.SassScriptException0) {
+            error0 = t1;
+            stackTrace0 = A.getTraceFromException(exception);
+            t1 = error0.message;
+            A.throwWithTrace0(new A.SassException0(B.Set_empty, t1, node.value.span), error0, stackTrace0);
+          } else
+            throw exception;
+        }
+      }
+    },
+    _serialize0$_writeFoldedValue$1(node) {
+      var t1, t2, next, t3,
+        scanner = A.StringScanner$(type$.SassString_2._as(node.value.value)._string0$_text, null, null);
+      for (t1 = scanner.string.length, t2 = this._serialize0$_buffer; scanner._string_scanner$_position !== t1;) {
+        next = scanner.readChar$0();
+        if (next !== 10) {
+          t2.writeCharCode$1(next);
+          continue;
+        }
+        t2.writeCharCode$1(32);
+        while (true) {
+          t3 = scanner.peekChar$0();
+          if (!(t3 === 32 || t3 === 9 || t3 === 10 || t3 === 13 || t3 === 12))
+            break;
+          scanner.readChar$0();
+        }
+      }
+    },
+    _serialize0$_writeReindentedValue$1(node) {
+      var _0_0, t1, _this = this,
+        value = type$.SassString_2._as(node.value.value)._string0$_text;
+      $label0$0: {
+        _0_0 = _this._serialize0$_minimumIndentation$1(value);
+        if (_0_0 == null) {
+          _this._serialize0$_buffer.write$1(0, value);
+          break $label0$0;
+        }
+        if (-1 === _0_0) {
+          t1 = _this._serialize0$_buffer;
+          t1.write$1(0, A.trimAsciiRight0(value, true));
+          t1.writeCharCode$1(32);
+          break $label0$0;
+        }
+        t1 = node.name.span;
+        t1 = t1.get$start(t1);
+        _this._serialize0$_writeWithIndent$2(value, Math.min(_0_0, t1.file.getColumn$1(t1.offset)));
+      }
+    },
+    _serialize0$_minimumIndentation$1(text) {
+      var character, t2, min, next, min0,
+        scanner = A.LineScanner$(text),
+        t1 = scanner.string.length;
+      while (true) {
+        if (scanner._string_scanner$_position !== t1) {
+          character = scanner.super$StringScanner$readChar();
+          scanner._adjustLineAndColumn$1(character);
+          t2 = character !== 10;
+        } else
+          t2 = false;
+        if (!t2)
+          break;
+      }
+      if (scanner._string_scanner$_position === t1)
+        return scanner.peekChar$1(-1) === 10 ? -1 : null;
+      for (min = null; scanner._string_scanner$_position !== t1;) {
+        for (; scanner._string_scanner$_position !== t1;) {
+          next = scanner.peekChar$0();
+          if (next !== 32 && next !== 9)
+            break;
+          scanner._adjustLineAndColumn$1(scanner.super$StringScanner$readChar());
+        }
+        if (scanner._string_scanner$_position === t1 || scanner.scanChar$1(10))
+          continue;
+        min0 = scanner._line_scanner$_column;
+        min = min == null ? min0 : Math.min(min, min0);
+        while (true) {
+          if (scanner._string_scanner$_position !== t1) {
+            character = scanner.super$StringScanner$readChar();
+            scanner._adjustLineAndColumn$1(character);
+            t2 = character !== 10;
+          } else
+            t2 = false;
+          if (!t2)
+            break;
+        }
+      }
+      return min == null ? -1 : min;
+    },
+    _serialize0$_writeWithIndent$2(text, minimumIndentation) {
+      var t1, t2, t3, character, lineStart, newlines, end,
+        scanner = A.LineScanner$(text);
+      for (t1 = scanner.string, t2 = t1.length, t3 = this._serialize0$_buffer; scanner._string_scanner$_position !== t2;) {
+        character = scanner.super$StringScanner$readChar();
+        scanner._adjustLineAndColumn$1(character);
+        if (character === 10)
+          break;
+        t3.writeCharCode$1(character);
+      }
+      for (; true;) {
+        lineStart = scanner._string_scanner$_position;
+        for (newlines = 1; true;) {
+          if (scanner._string_scanner$_position === t2) {
+            t3.writeCharCode$1(32);
+            return;
+          }
+          $label0$2: {
+            character = scanner.super$StringScanner$readChar();
+            scanner._adjustLineAndColumn$1(character);
+            if (32 === character || 9 === character)
+              continue;
+            if (10 === character) {
+              lineStart = scanner._string_scanner$_position;
+              ++newlines;
+              break $label0$2;
+            }
+            break;
+          }
+        }
+        this._serialize0$_writeTimes$2(10, newlines);
+        this._serialize0$_writeIndentation$0();
+        end = scanner._string_scanner$_position;
+        t3.write$1(0, B.JSString_methods.substring$2(t1, lineStart + minimumIndentation, end));
+        for (; true;) {
+          if (scanner._string_scanner$_position === t2)
+            return;
+          character = scanner.super$StringScanner$readChar();
+          scanner._adjustLineAndColumn$1(character);
+          if (character === 10)
+            break;
+          t3.writeCharCode$1(character);
+        }
+      }
+    },
+    visitCalculation$1(value) {
+      var t2, _this = this,
+        t1 = _this._serialize0$_buffer;
+      t1.write$1(0, value.name);
+      t1.writeCharCode$1(40);
+      t2 = _this._serialize0$_style === B.OutputStyle_10 ? "," : ", ";
+      _this._serialize0$_writeBetween$3(value.$arguments, t2, _this.get$_serialize0$_writeCalculationValue());
+      t1.writeCharCode$1(41);
+    },
+    _serialize0$_writeCalculationValue$1(value) {
+      var _2_4_isSet, _2_4, t1, _0_0, _1_0, first, rest, operator, left, right, parenthesizeLeft, operatorWhitespace, t2, parenthesizeRight, _this = this, _null = null;
+      $label1$1: {
+        _2_4_isSet = value instanceof A.SassNumber0;
+        if (_2_4_isSet) {
+          _2_4 = value.get$hasComplexUnits();
+          t1 = _2_4 && !_this._serialize0$_inspect;
+        } else {
+          _2_4 = _null;
+          t1 = false;
+        }
+        if (t1)
+          throw A.wrapException(A.SassScriptException$0(A.S(value) + " isn't a valid CSS value.", _null));
+        if (_2_4_isSet && !isFinite(value._number1$_value)) {
+          $label0$0: {
+            _0_0 = value._number1$_value;
+            if (1 / 0 === _0_0) {
+              _this._serialize0$_buffer.write$1(0, "infinity");
+              break $label0$0;
+            }
+            if (-1 / 0 === _0_0) {
+              _this._serialize0$_buffer.write$1(0, "-infinity");
+              break $label0$0;
+            }
+            if (isNaN(_0_0))
+              _this._serialize0$_buffer.write$1(0, "NaN");
+          }
+          t1 = J.getInterceptor$x(value);
+          _this._serialize0$_writeCalculationUnits$2(t1.get$numeratorUnits(value), t1.get$denominatorUnits(value));
+          break $label1$1;
+        }
+        if (_2_4_isSet)
+          t1 = _2_4;
+        else
+          t1 = false;
+        if (t1) {
+          _this._serialize0$_writeNumber$1(value._number1$_value);
+          t1 = J.getInterceptor$x(value);
+          _1_0 = t1.get$numeratorUnits(value);
+          if (_1_0.length >= 1) {
+            first = _1_0[0];
+            rest = B.JSArray_methods.sublist$1(_1_0, 1);
+            _this._serialize0$_buffer.write$1(0, first);
+            _this._serialize0$_writeCalculationUnits$2(rest, t1.get$denominatorUnits(value));
+          } else
+            _this._serialize0$_writeCalculationUnits$2(A._setArrayType([], type$.JSArray_String), t1.get$denominatorUnits(value));
+          break $label1$1;
+        }
+        if (value instanceof A.Value0) {
+          value.accept$1(_this);
+          break $label1$1;
+        }
+        t1 = value instanceof A.CalculationOperation0;
+        if (t1) {
+          operator = value._calculation0$_operator;
+          left = value._calculation0$_left;
+          right = value._calculation0$_right;
+          right = right;
+        } else {
+          right = _null;
+          left = right;
+          operator = left;
+        }
+        if (t1) {
+          parenthesizeLeft = left instanceof A.CalculationOperation0 && left._calculation0$_operator.precedence < operator.precedence;
+          if (parenthesizeLeft)
+            _this._serialize0$_buffer.writeCharCode$1(40);
+          _this._serialize0$_writeCalculationValue$1(left);
+          if (parenthesizeLeft)
+            _this._serialize0$_buffer.writeCharCode$1(41);
+          operatorWhitespace = _this._serialize0$_style !== B.OutputStyle_10 || operator.precedence === 1;
+          if (operatorWhitespace)
+            _this._serialize0$_buffer.writeCharCode$1(32);
+          t1 = _this._serialize0$_buffer;
+          t1.write$1(0, operator.operator);
+          if (operatorWhitespace)
+            t1.writeCharCode$1(32);
+          if (!(right instanceof A.CalculationOperation0 && _this._serialize0$_parenthesizeCalculationRhs$2(operator, right._calculation0$_operator)))
+            if (operator === B.CalculationOperator_Qf10) {
+              if (right instanceof A.SassNumber0)
+                t2 = isFinite(right._number1$_value) ? right.get$hasComplexUnits() : right.get$hasUnits();
+              else
+                t2 = false;
+              parenthesizeRight = t2;
+            } else
+              parenthesizeRight = false;
+          else
+            parenthesizeRight = true;
+          if (parenthesizeRight)
+            t1.writeCharCode$1(40);
+          _this._serialize0$_writeCalculationValue$1(right);
+          if (parenthesizeRight)
+            t1.writeCharCode$1(41);
+        }
+      }
+    },
+    _serialize0$_writeCalculationUnits$2(numeratorUnits, denominatorUnits) {
+      var t1, t2, t3, t4;
+      for (t1 = J.get$iterator$ax(numeratorUnits), t2 = this._serialize0$_buffer, t3 = this._serialize0$_style !== B.OutputStyle_10; t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(42);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(49);
+        t2.write$1(0, t4);
+      }
+      for (t1 = J.get$iterator$ax(denominatorUnits); t1.moveNext$0();) {
+        t4 = t1.get$current(t1);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(47);
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.writeCharCode$1(49);
+        t2.write$1(0, t4);
+      }
+    },
+    _serialize0$_parenthesizeCalculationRhs$2(outer, right) {
+      var t1;
+      $label0$0: {
+        if (B.CalculationOperator_Qf10 === outer) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (B.CalculationOperator_g2q0 === outer) {
+          t1 = false;
+          break $label0$0;
+        }
+        t1 = right === B.CalculationOperator_g2q0 || right === B.CalculationOperator_CxF0;
+        break $label0$0;
+      }
+      return t1;
+    },
+    visitColor$1(value) {
+      var hexLength, _0_0, t1, $name, _1_0, opaque, t2, _3_0, _this = this;
+      if (_this._serialize0$_style === B.OutputStyle_10)
+        if (!A.fuzzyEquals0(value._color1$_alpha, 1))
+          _this._serialize0$_writeRgb$1(value);
+        else {
+          hexLength = _this._serialize0$_canUseShortHex$1(value) ? 4 : 7;
+          _0_0 = $.$get$namesByColor0().$index(0, value);
+          if (_0_0 != null) {
+            t1 = _0_0.length <= hexLength;
+            $name = _0_0;
+          } else {
+            $name = null;
+            t1 = false;
+          }
+          if (t1)
+            _this._serialize0$_buffer.write$1(0, $name);
+          else {
+            t1 = _this._serialize0$_buffer;
+            if (_this._serialize0$_canUseShortHex$1(value)) {
+              t1.writeCharCode$1(35);
+              t1.writeCharCode$1(A.hexCharFor0(value.get$red(0) & 15));
+              t1.writeCharCode$1(A.hexCharFor0(value.get$green(0) & 15));
+              t1.writeCharCode$1(A.hexCharFor0(value.get$blue(0) & 15));
+            } else {
+              t1.writeCharCode$1(35);
+              _this._serialize0$_writeHexComponent$1(value.get$red(0));
+              _this._serialize0$_writeHexComponent$1(value.get$green(0));
+              _this._serialize0$_writeHexComponent$1(value.get$blue(0));
+            }
+          }
+        }
+      else {
+        _1_0 = value.format;
+        if (_1_0 != null)
+          $label0$0: {
+            if (B._ColorFormatEnum_rgbFunction0 === _1_0) {
+              _this._serialize0$_writeRgb$1(value);
+              break $label0$0;
+            }
+            if (B._ColorFormatEnum_hslFunction0 === _1_0) {
+              t1 = value._color1$_alpha;
+              opaque = A.fuzzyEquals0(t1, 1);
+              t2 = _this._serialize0$_buffer;
+              t2.write$1(0, opaque ? "hsl(" : "hsla(");
+              _this._serialize0$_writeNumber$1(value.get$hue(0));
+              t2.write$1(0, ", ");
+              _this._serialize0$_writeNumber$1(value.get$saturation(0));
+              t2.writeCharCode$1(37);
+              t2.write$1(0, ", ");
+              _this._serialize0$_writeNumber$1(value.get$lightness(0));
+              t2.writeCharCode$1(37);
+              if (!opaque) {
+                t2.write$1(0, ", ");
+                _this._serialize0$_writeNumber$1(t1);
+              }
+              t2.writeCharCode$1(41);
+              break $label0$0;
+            }
+            if (_1_0 instanceof A.SpanColorFormat0) {
+              _this._serialize0$_buffer.write$1(0, _1_0._color1$_span.get$text());
+              break $label0$0;
+            }
+          }
+        else {
+          _3_0 = $.$get$namesByColor0().$index(0, value);
+          if (_3_0 != null) {
+            t1 = !A.fuzzyEquals0(value._color1$_alpha, 0);
+            $name = _3_0;
+          } else {
+            $name = null;
+            t1 = false;
+          }
+          if (t1)
+            _this._serialize0$_buffer.write$1(0, $name);
+          else if (A.fuzzyEquals0(value._color1$_alpha, 1)) {
+            _this._serialize0$_buffer.writeCharCode$1(35);
+            _this._serialize0$_writeHexComponent$1(value.get$red(0));
+            _this._serialize0$_writeHexComponent$1(value.get$green(0));
+            _this._serialize0$_writeHexComponent$1(value.get$blue(0));
+          } else
+            _this._serialize0$_writeRgb$1(value);
+        }
+      }
+    },
+    _serialize0$_writeRgb$1(value) {
+      var t3,
+        t1 = value._color1$_alpha,
+        opaque = A.fuzzyEquals0(t1, 1),
+        t2 = this._serialize0$_buffer;
+      t2.write$1(0, opaque ? "rgb(" : "rgba(");
+      t2.write$1(0, value.get$red(0));
+      t3 = this._serialize0$_style === B.OutputStyle_10;
+      t2.write$1(0, t3 ? "," : ", ");
+      t2.write$1(0, value.get$green(0));
+      t2.write$1(0, t3 ? "," : ", ");
+      t2.write$1(0, value.get$blue(0));
+      if (!opaque) {
+        t2.write$1(0, t3 ? "," : ", ");
+        this._serialize0$_writeNumber$1(t1);
+      }
+      t2.writeCharCode$1(41);
+    },
+    _serialize0$_canUseShortHex$1(color) {
+      var t1 = color.get$red(0);
+      if ((t1 & 15) === B.JSInt_methods._shrOtherPositive$1(t1, 4)) {
+        t1 = color.get$green(0);
+        if ((t1 & 15) === B.JSInt_methods._shrOtherPositive$1(t1, 4)) {
+          t1 = color.get$blue(0);
+          t1 = (t1 & 15) === B.JSInt_methods._shrOtherPositive$1(t1, 4);
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      return t1;
+    },
+    _serialize0$_writeHexComponent$1(color) {
+      var t1 = this._serialize0$_buffer;
+      t1.writeCharCode$1(A.hexCharFor0(B.JSInt_methods._shrOtherPositive$1(color, 4)));
+      t1.writeCharCode$1(A.hexCharFor0(color & 15));
+    },
+    visitList$1(value) {
+      var t2, t3, singleton, t4, t5, _this = this,
+        t1 = value._list1$_hasBrackets;
+      if (t1)
+        _this._serialize0$_buffer.writeCharCode$1(91);
+      else if (value._list1$_contents.length === 0) {
+        if (!_this._serialize0$_inspect)
+          throw A.wrapException(A.SassScriptException$0("() isn't a valid CSS value.", null));
+        _this._serialize0$_buffer.write$1(0, "()");
+        return;
+      }
+      t2 = _this._serialize0$_inspect;
+      if (t2)
+        if (value._list1$_contents.length === 1) {
+          t3 = value._list1$_separator;
+          t3 = t3 === B.ListSeparator_ECn0 || t3 === B.ListSeparator_cQA0;
+          singleton = t3;
+        } else
+          singleton = false;
+      else
+        singleton = false;
+      if (singleton && !t1)
+        _this._serialize0$_buffer.writeCharCode$1(40);
+      t3 = value._list1$_contents;
+      t3 = t2 ? t3 : new A.WhereIterable(t3, new A._SerializeVisitor_visitList_closure2(), A._arrayInstanceType(t3)._eval$1("WhereIterable<1>"));
+      t4 = value._list1$_separator;
+      t5 = _this._serialize0$_separatorString$1(t4);
+      _this._serialize0$_writeBetween$3(t3, t5, t2 ? new A._SerializeVisitor_visitList_closure3(_this, value) : new A._SerializeVisitor_visitList_closure4(_this));
+      if (singleton) {
+        t2 = _this._serialize0$_buffer;
+        t2.write$1(0, t4.separator);
+        if (!t1)
+          t2.writeCharCode$1(41);
+      }
+      if (t1)
+        _this._serialize0$_buffer.writeCharCode$1(93);
+    },
+    _serialize0$_separatorString$1(separator) {
+      var t1;
+      $label0$0: {
+        if (B.ListSeparator_ECn0 === separator) {
+          t1 = this._serialize0$_style === B.OutputStyle_10 ? "," : ", ";
+          break $label0$0;
+        }
+        if (B.ListSeparator_cQA0 === separator) {
+          t1 = this._serialize0$_style === B.OutputStyle_10 ? "/" : " / ";
+          break $label0$0;
+        }
+        if (B.ListSeparator_nbm0 === separator) {
+          t1 = " ";
+          break $label0$0;
+        }
+        t1 = "";
+        break $label0$0;
+      }
+      return t1;
+    },
+    _serialize0$_elementNeedsParens$2(separator, value) {
+      var t1;
+      $label1$1: {
+        if (value instanceof A.SassList0 && value._list1$_contents.length > 1 && !value._list1$_hasBrackets) {
+          $label0$0: {
+            if (B.ListSeparator_ECn0 === separator) {
+              t1 = value._list1$_separator === B.ListSeparator_ECn0;
+              break $label0$0;
+            }
+            if (B.ListSeparator_cQA0 === separator) {
+              t1 = value._list1$_separator;
+              t1 = t1 === B.ListSeparator_ECn0 || t1 === B.ListSeparator_cQA0;
+              break $label0$0;
+            }
+            t1 = value._list1$_separator !== B.ListSeparator_undecided_null_undecided0;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        t1 = false;
+        break $label1$1;
+      }
+      return t1;
+    },
+    visitMap$1(map) {
+      var t1, t2, _this = this;
+      if (!_this._serialize0$_inspect)
+        throw A.wrapException(A.SassScriptException$0(map.toString$0(0) + " isn't a valid CSS value.", null));
+      t1 = _this._serialize0$_buffer;
+      t1.writeCharCode$1(40);
+      t2 = map._map0$_contents;
+      _this._serialize0$_writeBetween$3(t2.get$entries(t2), ", ", new A._SerializeVisitor_visitMap_closure0(_this));
+      t1.writeCharCode$1(41);
+    },
+    _serialize0$_writeMapElement$1(value) {
+      var needsParens = value instanceof A.SassList0 && value._list1$_separator === B.ListSeparator_ECn0 && !value._list1$_hasBrackets;
+      if (needsParens)
+        this._serialize0$_buffer.writeCharCode$1(40);
+      value.accept$1(this);
+      if (needsParens)
+        this._serialize0$_buffer.writeCharCode$1(41);
+    },
+    visitNumber$1(value) {
+      var before, after, t1, _1_0, _this = this,
+        _0_0 = value.asSlash;
+      if (type$.Record_2_nullable_Object_and_nullable_Object._is(_0_0)) {
+        before = _0_0._0;
+        after = _0_0._1;
+        _this.visitNumber$1(before);
+        _this._serialize0$_buffer.writeCharCode$1(47);
+        _this.visitNumber$1(after);
+        return;
+      }
+      t1 = value._number1$_value;
+      if (!isFinite(t1)) {
+        _this.visitCalculation$1(new A.SassCalculation0("calc", A.List_List$unmodifiable(A._setArrayType([value], type$.JSArray_Object), type$.Object)));
+        return;
+      }
+      if (value.get$hasComplexUnits()) {
+        if (!_this._serialize0$_inspect)
+          throw A.wrapException(A.SassScriptException$0(value.toString$0(0) + " isn't a valid CSS value.", null));
+        _this.visitCalculation$1(new A.SassCalculation0("calc", A.List_List$unmodifiable(A._setArrayType([value], type$.JSArray_Object), type$.Object)));
+      } else {
+        _this._serialize0$_writeNumber$1(t1);
+        _1_0 = value.get$numeratorUnits(value);
+        if (_1_0.length === 1)
+          _this._serialize0$_buffer.write$1(0, _1_0[0]);
+      }
+    },
+    _serialize0$_writeNumber$1(number) {
+      var text, _this = this,
+        _0_0 = A.fuzzyAsInt0(number);
+      if (_0_0 != null) {
+        _this._serialize0$_buffer.write$1(0, _this._serialize0$_removeExponent$1(B.JSInt_methods.toString$0(_0_0)));
+        return;
+      }
+      text = _this._serialize0$_removeExponent$1(B.JSNumber_methods.toString$0(number));
+      if (text.length < 12) {
+        if (_this._serialize0$_style === B.OutputStyle_10 && text.charCodeAt(0) === 48)
+          text = B.JSString_methods.substring$1(text, 1);
+        _this._serialize0$_buffer.write$1(0, text);
+        return;
+      }
+      _this._serialize0$_writeRounded$1(text);
+    },
+    _serialize0$_removeExponent$1(text) {
+      var buffer, t2, t3, additionalZeroes,
+        negative = text.charCodeAt(0) === 45,
+        exponent = A._Cell$(),
+        t1 = text.length,
+        i = 0;
+      while (true) {
+        if (!(i < t1)) {
+          buffer = null;
+          break;
+        }
+        c$0: {
+          if (text.charCodeAt(i) !== 101)
+            break c$0;
+          buffer = new A.StringBuffer("");
+          t2 = buffer._contents = "" + A.Primitives_stringFromCharCode(text.charCodeAt(0));
+          if (negative) {
+            t2 += A.Primitives_stringFromCharCode(text.charCodeAt(1));
+            buffer._contents = t2;
+            if (i > 3)
+              buffer._contents = t2 + B.JSString_methods.substring$2(text, 3, i);
+          } else if (i > 2)
+            buffer._contents = t2 + B.JSString_methods.substring$2(text, 2, i);
+          exponent.__late_helper$_value = A.int_parse(B.JSString_methods.substring$2(text, i + 1, t1), null);
+          break;
+        }
+        ++i;
+      }
+      if (buffer == null)
+        return text;
+      if (exponent._readLocal$0() > 0) {
+        t1 = exponent._readLocal$0();
+        t2 = buffer._contents;
+        t3 = negative ? 1 : 0;
+        additionalZeroes = t1 - (t2.length - 1 - t3);
+        for (t1 = t2, i = 0; i < additionalZeroes; ++i) {
+          t1 = A.Primitives_stringFromCharCode(48);
+          t1 = buffer._contents += t1;
+        }
+        return t1.charCodeAt(0) == 0 ? t1 : t1;
+      } else {
+        negative = text.charCodeAt(0) === 45;
+        t1 = (negative ? "" + A.Primitives_stringFromCharCode(45) : "") + "0.";
+        i = -1;
+        while (true) {
+          t2 = exponent.__late_helper$_value;
+          if (t2 === exponent)
+            A.throwExpression(A.LateError$localNI(""));
+          if (!(i > t2))
+            break;
+          t1 += A.Primitives_stringFromCharCode(48);
+          --i;
+        }
+        if (negative) {
+          t2 = buffer._contents;
+          t2 = B.JSString_methods.substring$1(t2.charCodeAt(0) == 0 ? t2 : t2, 1);
+        } else
+          t2 = buffer;
+        t2 = t1 + A.S(t2);
+        return t2.charCodeAt(0) == 0 ? t2 : t2;
+      }
+    },
+    _serialize0$_writeRounded$1(text) {
+      var t1, digits, negative, textIndex, digitsIndex, textIndex0, codeUnit, digitsIndex0, indexAfterPrecision, digitsIndex1, newDigit, writtenIndex, t2, _this = this;
+      if (B.JSString_methods.endsWith$1(text, ".0")) {
+        _this._serialize0$_buffer.write$1(0, B.JSString_methods.substring$2(text, 0, text.length - 2));
+        return;
+      }
+      t1 = text.length;
+      digits = new Uint8Array(t1 + 1);
+      negative = text.charCodeAt(0) === 45;
+      textIndex = negative ? 1 : 0;
+      for (digitsIndex = 1; true; textIndex = textIndex0, digitsIndex = digitsIndex0) {
+        if (textIndex === t1) {
+          _this._serialize0$_buffer.write$1(0, text);
+          return;
+        }
+        textIndex0 = textIndex + 1;
+        codeUnit = text.charCodeAt(textIndex);
+        if (codeUnit === 46) {
+          textIndex = textIndex0;
+          break;
+        }
+        digitsIndex0 = digitsIndex + 1;
+        digits[digitsIndex] = codeUnit - 48;
+      }
+      indexAfterPrecision = textIndex + 10;
+      if (indexAfterPrecision >= t1) {
+        _this._serialize0$_buffer.write$1(0, text);
+        return;
+      }
+      for (digitsIndex0 = digitsIndex; textIndex < indexAfterPrecision; textIndex = textIndex0, digitsIndex0 = digitsIndex1) {
+        digitsIndex1 = digitsIndex0 + 1;
+        textIndex0 = textIndex + 1;
+        digits[digitsIndex0] = text.charCodeAt(textIndex) - 48;
+      }
+      if (text.charCodeAt(textIndex) - 48 >= 5)
+        for (; true; digitsIndex0 = digitsIndex1) {
+          digitsIndex1 = digitsIndex0 - 1;
+          newDigit = digits[digitsIndex1] + 1;
+          digits[digitsIndex1] = newDigit;
+          if (newDigit !== 10)
+            break;
+        }
+      for (; digitsIndex0 < digitsIndex; ++digitsIndex0)
+        digits[digitsIndex0] = 0;
+      while (true) {
+        t1 = digitsIndex0 > digitsIndex;
+        if (!(t1 && digits[digitsIndex0 - 1] === 0))
+          break;
+        --digitsIndex0;
+      }
+      if (digitsIndex0 === 2 && digits[0] === 0 && digits[1] === 0) {
+        _this._serialize0$_buffer.writeCharCode$1(48);
+        return;
+      }
+      if (negative)
+        _this._serialize0$_buffer.writeCharCode$1(45);
+      if (digits[0] === 0)
+        writtenIndex = _this._serialize0$_style === B.OutputStyle_10 && digits[1] === 0 ? 2 : 1;
+      else
+        writtenIndex = 0;
+      for (t2 = _this._serialize0$_buffer; writtenIndex < digitsIndex; ++writtenIndex)
+        t2.writeCharCode$1(48 + digits[writtenIndex]);
+      if (t1) {
+        t2.writeCharCode$1(46);
+        for (; writtenIndex < digitsIndex0; ++writtenIndex)
+          t2.writeCharCode$1(48 + digits[writtenIndex]);
+      }
+    },
+    _serialize0$_visitQuotedString$2$forceDoubleQuote(string, forceDoubleQuote) {
+      var t1, includesSingleQuote, includesDoubleQuote, i, char, _1_2, _1_4, _0_0, quote, _this = this,
+        buffer = forceDoubleQuote ? _this._serialize0$_buffer : new A.StringBuffer("");
+      if (forceDoubleQuote)
+        buffer.writeCharCode$1(34);
+      for (t1 = string.length, includesSingleQuote = false, includesDoubleQuote = false, i = 0; i < t1; ++i) {
+        char = string.charCodeAt(i);
+        _1_2 = 39 === char;
+        if (_1_2 && forceDoubleQuote) {
+          buffer.writeCharCode$1(39);
+          continue;
+        }
+        if (_1_2 && includesDoubleQuote) {
+          _this._serialize0$_visitQuotedString$2$forceDoubleQuote(string, true);
+          return;
+        }
+        if (_1_2) {
+          buffer.writeCharCode$1(39);
+          includesSingleQuote = true;
+          continue;
+        }
+        _1_4 = 34 === char;
+        if (_1_4 && forceDoubleQuote) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(34);
+          continue;
+        }
+        if (_1_4 && includesSingleQuote) {
+          _this._serialize0$_visitQuotedString$2$forceDoubleQuote(string, true);
+          return;
+        }
+        if (_1_4) {
+          buffer.writeCharCode$1(34);
+          includesDoubleQuote = true;
+          continue;
+        }
+        if (0 === char || 1 === char || 2 === char || 3 === char || 4 === char || 5 === char || 6 === char || 7 === char || 8 === char || 10 === char || 11 === char || 12 === char || 13 === char || 14 === char || 15 === char || 16 === char || 17 === char || 18 === char || 19 === char || 20 === char || 21 === char || 22 === char || 23 === char || 24 === char || 25 === char || 26 === char || 27 === char || 28 === char || 29 === char || 30 === char || 31 === char || 127 === char) {
+          _this._serialize0$_writeEscape$4(buffer, char, string, i);
+          continue;
+        }
+        if (92 === char) {
+          buffer.writeCharCode$1(92);
+          buffer.writeCharCode$1(92);
+          continue;
+        }
+        _0_0 = _this._serialize0$_tryPrivateUseCharacter$4(buffer, char, string, i);
+        if (_0_0 != null)
+          i = _0_0;
+        else
+          buffer.writeCharCode$1(char);
+      }
+      if (forceDoubleQuote)
+        buffer.writeCharCode$1(34);
+      else {
+        quote = includesDoubleQuote ? 39 : 34;
+        t1 = _this._serialize0$_buffer;
+        t1.writeCharCode$1(quote);
+        t1.write$1(0, buffer);
+        t1.writeCharCode$1(quote);
+      }
+    },
+    _serialize0$_visitQuotedString$1(string) {
+      return this._serialize0$_visitQuotedString$2$forceDoubleQuote(string, false);
+    },
+    _serialize0$_visitUnquotedString$1(string) {
+      var t1, t2, afterNewline, i, _1_0, _0_0;
+      for (t1 = string.length, t2 = this._serialize0$_buffer, afterNewline = false, i = 0; i < t1; ++i) {
+        _1_0 = string.charCodeAt(i);
+        if (10 === _1_0) {
+          t2.writeCharCode$1(32);
+          afterNewline = true;
+          continue;
+        }
+        if (32 === _1_0) {
+          if (!afterNewline)
+            t2.writeCharCode$1(32);
+          continue;
+        }
+        _0_0 = this._serialize0$_tryPrivateUseCharacter$4(t2, _1_0, string, i);
+        if (_0_0 != null)
+          i = _0_0;
+        else
+          t2.writeCharCode$1(_1_0);
+        afterNewline = false;
+      }
+    },
+    _serialize0$_tryPrivateUseCharacter$4(buffer, codeUnit, string, i) {
+      var t1;
+      if (this._serialize0$_style === B.OutputStyle_10)
+        return null;
+      if (codeUnit >= 57344 && codeUnit <= 63743) {
+        this._serialize0$_writeEscape$4(buffer, codeUnit, string, i);
+        return i;
+      }
+      if (codeUnit >>> 7 === 439 && string.length > i + 1) {
+        t1 = i + 1;
+        this._serialize0$_writeEscape$4(buffer, 65536 + ((codeUnit & 1023) << 10) + (string.charCodeAt(t1) & 1023), string, t1);
+        return t1;
+      }
+      return null;
+    },
+    _serialize0$_writeEscape$4(buffer, character, string, i) {
+      var t1, next;
+      buffer.writeCharCode$1(92);
+      buffer.write$1(0, B.JSInt_methods.toRadixString$1(character, 16));
+      t1 = i + 1;
+      if (string.length === t1)
+        return;
+      next = string.charCodeAt(t1);
+      if (A.CharacterExtension_get_isHex0(next) || 32 === next || 9 === next)
+        buffer.writeCharCode$1(32);
+    },
+    visitAttributeSelector$1(attribute) {
+      var _0_0, t2,
+        t1 = this._serialize0$_buffer;
+      t1.writeCharCode$1(91);
+      t1.write$1(0, attribute.name);
+      _0_0 = attribute.value;
+      if (_0_0 != null) {
+        t1.write$1(0, attribute.op);
+        if (A.Parser_isIdentifier0(_0_0) && !B.JSString_methods.startsWith$1(_0_0, "--")) {
+          t1.write$1(0, _0_0);
+          t2 = attribute.modifier;
+          if (t2 != null)
+            t1.writeCharCode$1(32);
+        } else {
+          this._serialize0$_visitQuotedString$1(_0_0);
+          t2 = attribute.modifier;
+          if (t2 != null)
+            if (this._serialize0$_style !== B.OutputStyle_10)
+              t1.writeCharCode$1(32);
+        }
+        A.NullableExtension_andThen0(t2, t1.get$write(t1));
+      }
+      t1.writeCharCode$1(93);
+    },
+    visitClassSelector$1(klass) {
+      var t1 = this._serialize0$_buffer;
+      t1.writeCharCode$1(46);
+      t1.write$1(0, klass.name);
+    },
+    visitComplexSelector$1(complex) {
+      var t2, t3, t4, t5, t6, i, component, t7, t8, t9, _this = this,
+        t1 = complex.leadingCombinators;
+      _this._serialize0$_writeCombinators$1(t1);
+      if (t1.length >= 1 && complex.components.length >= 1)
+        if (_this._serialize0$_style !== B.OutputStyle_10)
+          _this._serialize0$_buffer.writeCharCode$1(32);
+      for (t1 = complex.components, t2 = t1.length, t3 = t2 - 1, t4 = _this._serialize0$_buffer, t5 = _this._serialize0$_style === B.OutputStyle_10, t6 = !t5, i = 0; i < t2; ++i) {
+        component = t1[i];
+        _this.visitCompoundSelector$1(component.selector);
+        t7 = component.combinators;
+        t8 = t7.length === 0;
+        if (!t8)
+          if (t6)
+            t4.writeCharCode$1(32);
+        t9 = t5 ? "" : " ";
+        _this._serialize0$_writeBetween$3(t7, t9, t4.get$write(t4));
+        if (i !== t3)
+          t7 = !t5 || t8;
+        else
+          t7 = false;
+        if (t7)
+          t4.writeCharCode$1(32);
+      }
+    },
+    _serialize0$_writeCombinators$1(combinators) {
+      var t1 = this._serialize0$_style === B.OutputStyle_10 ? "" : " ",
+        t2 = this._serialize0$_buffer;
+      return this._serialize0$_writeBetween$3(combinators, t1, t2.get$write(t2));
+    },
+    visitCompoundSelector$1(compound) {
+      var t2, t3, _i,
+        t1 = this._serialize0$_buffer,
+        start = t1.get$length(t1);
+      for (t2 = compound.components, t3 = t2.length, _i = 0; _i < t3; ++_i)
+        t2[_i].accept$1(this);
+      if (t1.get$length(t1) === start)
+        t1.writeCharCode$1(42);
+    },
+    visitIDSelector$1(id) {
+      var t1 = this._serialize0$_buffer;
+      t1.writeCharCode$1(35);
+      t1.write$1(0, id.name);
+    },
+    visitSelectorList$1(list) {
+      var t1, t2, t3, t4, first, t5, _this = this,
+        complexes = list.components;
+      for (t1 = J.get$iterator$ax(_this._serialize0$_inspect ? complexes : new A.WhereIterable(complexes, new A._SerializeVisitor_visitSelectorList_closure0(), A._arrayInstanceType(complexes)._eval$1("WhereIterable<1>"))), t2 = _this._serialize0$_style !== B.OutputStyle_10, t3 = _this._serialize0$_buffer, t4 = _this._lineFeed.text, first = true; t1.moveNext$0();) {
+        t5 = t1.get$current(t1);
+        if (first)
+          first = false;
+        else {
+          t3.writeCharCode$1(44);
+          if (t5.lineBreak) {
+            if (t2)
+              t3.write$1(0, t4);
+            _this._serialize0$_writeIndentation$0();
+          } else if (t2)
+            t3.writeCharCode$1(32);
+        }
+        _this.visitComplexSelector$1(t5);
+      }
+    },
+    visitParentSelector$1($parent) {
+      var t1 = this._serialize0$_buffer;
+      t1.writeCharCode$1(38);
+      A.NullableExtension_andThen0($parent.suffix, t1.get$write(t1));
+    },
+    visitPlaceholderSelector$1(placeholder) {
+      var t1 = this._serialize0$_buffer;
+      t1.writeCharCode$1(37);
+      t1.write$1(0, placeholder.name);
+    },
+    visitPseudoSelector$1(pseudo) {
+      var _0_4, t2, t3,
+        t1 = pseudo.name;
+      if ("not" === t1) {
+        _0_4 = pseudo.selector;
+        if (_0_4 instanceof A.SelectorList0)
+          t2 = (_0_4 == null ? type$.SelectorList_2._as(_0_4) : _0_4).accept$1(B._IsInvisibleVisitor_true0);
+        else
+          t2 = false;
+      } else
+        t2 = false;
+      if (t2)
+        return;
+      t2 = this._serialize0$_buffer;
+      t2.writeCharCode$1(58);
+      if (!pseudo.isSyntacticClass)
+        t2.writeCharCode$1(58);
+      t2.write$1(0, t1);
+      t1 = pseudo.argument;
+      t3 = t1 == null;
+      if (t3 && pseudo.selector == null)
+        return;
+      t2.writeCharCode$1(40);
+      if (!t3) {
+        t2.write$1(0, t1);
+        if (pseudo.selector != null)
+          t2.writeCharCode$1(32);
+      }
+      A.NullableExtension_andThen0(pseudo.selector, this.get$visitSelectorList());
+      t2.writeCharCode$1(41);
+    },
+    visitTypeSelector$1(type) {
+      this._serialize0$_buffer.write$1(0, type.name);
+    },
+    visitUniversalSelector$1(universal) {
+      var t2,
+        t1 = universal.namespace;
+      if (t1 != null) {
+        t2 = this._serialize0$_buffer;
+        t2.write$1(0, t1);
+        t2.writeCharCode$1(124);
+      }
+      this._serialize0$_buffer.writeCharCode$1(42);
+    },
+    _serialize0$_write$1(value) {
+      return this._serialize0$_buffer.forSpan$2(value.span, new A._SerializeVisitor__write_closure0(this, value));
+    },
+    _serialize0$_visitChildren$1($parent) {
+      var t2, t3, t4, t5, t6, t7, t8, prePrevious, previous, t9, previous0, t10, savedIndentation, _this = this,
+        t1 = _this._serialize0$_buffer;
+      t1.writeCharCode$1(123);
+      for (t2 = $parent.children, t3 = t2.$ti, t2 = new A.ListIterator(t2, t2.get$length(0), t3._eval$1("ListIterator<ListBase.E>")), t4 = _this._serialize0$_style === B.OutputStyle_10, t5 = !t4, t6 = _this.get$_serialize0$_requiresSemicolon(), t7 = !_this._serialize0$_inspect, t3 = t3._eval$1("ListBase.E"), t8 = _this._lineFeed.text, prePrevious = null, previous = null; t2.moveNext$0();) {
+        t9 = t2.__internal$_current;
+        previous0 = t9 == null ? t3._as(t9) : t9;
+        if (t7)
+          t9 = t4 ? previous0.accept$1(B._IsInvisibleVisitor_true_true0) : previous0.accept$1(B._IsInvisibleVisitor_true_false0);
+        else
+          t9 = false;
+        if (t9)
+          continue;
+        t9 = previous == null;
+        t10 = t9 ? null : t6.call$1(previous);
+        if (t10 == null ? false : t10)
+          t1.writeCharCode$1(59);
+        if (_this._serialize0$_isTrailingComment$2(previous0, t9 ? $parent : previous)) {
+          if (t5)
+            t1.writeCharCode$1(32);
+          savedIndentation = _this._serialize0$_indentation;
+          _this._serialize0$_indentation = 0;
+          new A._SerializeVisitor__visitChildren_closure1(_this, previous0).call$0();
+          _this._serialize0$_indentation = savedIndentation;
+        } else {
+          if (t5)
+            t1.write$1(0, t8);
+          ++_this._serialize0$_indentation;
+          new A._SerializeVisitor__visitChildren_closure2(_this, previous0).call$0();
+          --_this._serialize0$_indentation;
+        }
+        prePrevious = previous;
+        previous = previous0;
+      }
+      if (previous != null) {
+        if ((type$.CssParentNode_2._is(previous) ? previous.get$isChildless() : !(previous instanceof A.ModifiableCssComment0)) && t5)
+          t1.writeCharCode$1(59);
+        if (prePrevious == null && _this._serialize0$_isTrailingComment$2(previous, $parent)) {
+          if (t5)
+            t1.writeCharCode$1(32);
+        } else {
+          _this._serialize0$_writeLineFeed$0();
+          _this._serialize0$_writeIndentation$0();
+        }
+      }
+      t1.writeCharCode$1(125);
+    },
+    _serialize0$_requiresSemicolon$1(node) {
+      return type$.CssParentNode_2._is(node) ? node.get$isChildless() : !(node instanceof A.ModifiableCssComment0);
+    },
+    _serialize0$_isTrailingComment$2(node, previous) {
+      var t1, t2, t3, searchFrom, endOffset, t4, span;
+      if (this._serialize0$_style === B.OutputStyle_10)
+        return false;
+      if (!(node instanceof A.ModifiableCssComment0))
+        return false;
+      t1 = node.span;
+      t2 = t1.get$sourceUrl(t1);
+      t3 = previous.get$span(previous);
+      if (!J.$eq$(t2, t3.get$sourceUrl(t3)))
+        return false;
+      t2 = previous.get$span(previous);
+      if (!(J.$eq$(t2.get$file(t2).url, t1.get$file(t1).url) && t2.get$start(t2).offset <= t1.get$start(t1).offset && t2.get$end(t2).offset >= t1.get$end(t1).offset)) {
+        t1 = t1.get$start(t1);
+        t1 = t1.file.getLine$1(t1.offset);
+        t2 = previous.get$span(previous);
+        t2 = t2.get$end(t2);
+        return t1 === t2.file.getLine$1(t2.offset);
+      }
+      t2 = t1.get$start(t1);
+      t3 = previous.get$span(previous);
+      searchFrom = t2.offset - t3.get$start(t3).offset - 1;
+      if (searchFrom < 0)
+        return false;
+      endOffset = Math.max(0, B.JSString_methods.lastIndexOf$2(previous.get$span(previous).get$text(), "{", searchFrom));
+      t2 = previous.get$span(previous);
+      t2 = t2.get$file(t2);
+      t3 = previous.get$span(previous);
+      t3 = t3.get$start(t3);
+      t4 = previous.get$span(previous);
+      span = t2.span$2(0, t3.offset, t4.get$start(t4).offset + endOffset);
+      t1 = t1.get$start(t1);
+      t1 = t1.file.getLine$1(t1.offset);
+      t4 = A.FileLocation$_(span.file, span._end);
+      return t1 === t4.file.getLine$1(t4.offset);
+    },
+    _serialize0$_writeLineFeed$0() {
+      if (this._serialize0$_style !== B.OutputStyle_10)
+        this._serialize0$_buffer.write$1(0, this._lineFeed.text);
+    },
+    _serialize0$_writeIndentation$0() {
+      var _this = this;
+      if (_this._serialize0$_style === B.OutputStyle_10)
+        return;
+      _this._serialize0$_writeTimes$2(_this._serialize0$_indentCharacter, _this._serialize0$_indentation * _this._serialize0$_indentWidth);
+    },
+    _serialize0$_writeTimes$2(char, times) {
+      var t1, i;
+      for (t1 = this._serialize0$_buffer, i = 0; i < times; ++i)
+        t1.writeCharCode$1(char);
+    },
+    _serialize0$_writeBetween$1$3(iterable, text, callback) {
+      var t1, t2, first, value;
+      for (t1 = J.get$iterator$ax(iterable), t2 = this._serialize0$_buffer, first = true; t1.moveNext$0();) {
+        value = t1.get$current(t1);
+        if (first)
+          first = false;
+        else
+          t2.write$1(0, text);
+        callback.call$1(value);
+      }
+    },
+    _serialize0$_writeBetween$3(iterable, text, callback) {
+      return this._serialize0$_writeBetween$1$3(iterable, text, callback, type$.dynamic);
+    }
+  };
+  A._SerializeVisitor_visitCssComment_closure0.prototype = {
+    call$0() {
+      var t2, t3, _0_0, minimumIndentation,
+        t1 = this.$this;
+      if (t1._serialize0$_style === B.OutputStyle_10 && this.node.text.charCodeAt(2) !== 33)
+        return;
+      t2 = this.node;
+      t3 = t2.text;
+      if (B.JSString_methods.startsWith$1(t3, A.RegExp_RegExp("/\\*# source(Mapping)?URL=", false)))
+        return;
+      _0_0 = t1._serialize0$_minimumIndentation$1(t3);
+      if (_0_0 != null) {
+        t2 = t2.span;
+        t2 = t2.get$start(t2);
+        minimumIndentation = Math.min(_0_0, t2.file.getColumn$1(t2.offset));
+        t1._serialize0$_writeIndentation$0();
+        t1._serialize0$_writeWithIndent$2(t3, minimumIndentation);
+      } else {
+        t1._serialize0$_writeIndentation$0();
+        t1._serialize0$_buffer.write$1(0, t3);
+      }
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssAtRule_closure0.prototype = {
+    call$0() {
+      var t3, _0_0,
+        t1 = this.$this,
+        t2 = t1._serialize0$_buffer;
+      t2.writeCharCode$1(64);
+      t3 = this.node;
+      t1._serialize0$_write$1(t3.name);
+      _0_0 = t3.value;
+      if (_0_0 != null) {
+        t2.writeCharCode$1(32);
+        t1._serialize0$_write$1(_0_0);
+      }
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssMediaRule_closure0.prototype = {
+    call$0() {
+      var t3, firstQuery, t4, t5,
+        t1 = this.$this,
+        t2 = t1._serialize0$_buffer;
+      t2.write$1(0, "@media");
+      t3 = this.node.queries;
+      firstQuery = B.JSArray_methods.get$first(t3);
+      t4 = t1._serialize0$_style === B.OutputStyle_10;
+      if (t4)
+        if (firstQuery.modifier == null)
+          if (firstQuery.type == null) {
+            t5 = firstQuery.conditions;
+            t5 = t5.length === 1 && J.startsWith$1$s(B.JSArray_methods.get$first(t5), "(not ");
+          } else
+            t5 = true;
+        else
+          t5 = true;
+      else
+        t5 = true;
+      if (t5)
+        t2.writeCharCode$1(32);
+      t2 = t4 ? "," : ", ";
+      t1._serialize0$_writeBetween$3(t3, t2, t1.get$_serialize0$_visitMediaQuery());
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssImport_closure0.prototype = {
+    call$0() {
+      var t3, t4, _0_0,
+        t1 = this.$this,
+        t2 = t1._serialize0$_buffer;
+      t2.write$1(0, "@import");
+      t3 = t1._serialize0$_style !== B.OutputStyle_10;
+      if (t3)
+        t2.writeCharCode$1(32);
+      t4 = this.node;
+      t2.forSpan$2(t4.url.span, new A._SerializeVisitor_visitCssImport__closure0(t1, t4));
+      _0_0 = t4.modifiers;
+      if (_0_0 != null) {
+        if (t3)
+          t2.writeCharCode$1(32);
+        t2.write$1(0, _0_0);
+      }
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssImport__closure0.prototype = {
+    call$0() {
+      return this.$this._serialize0$_writeImportUrl$1(this.node.url.value);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitCssKeyframeBlock_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._serialize0$_style === B.OutputStyle_10 ? "," : ", ",
+        t3 = t1._serialize0$_buffer;
+      return t1._serialize0$_writeBetween$3(this.node.selector.value, t2, t3.get$write(t3));
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitCssStyleRule_closure0.prototype = {
+    call$0() {
+      return this.$this.visitSelectorList$1(this.node._style_rule0$_selector._box0$_inner.value);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitCssSupportsRule_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = t1._serialize0$_buffer;
+      t2.write$1(0, "@supports");
+      if (!(t1._serialize0$_style === B.OutputStyle_10 && J.codeUnitAt$1$s(this.node.condition.value, 0) === 40))
+        t2.writeCharCode$1(32);
+      t1._serialize0$_write$1(this.node.condition);
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssDeclaration_closure1.prototype = {
+    call$0() {
+      var t1 = this.$this,
+        t2 = this.node;
+      if (t1._serialize0$_style === B.OutputStyle_10)
+        t1._serialize0$_writeFoldedValue$1(t2);
+      else
+        t1._serialize0$_writeReindentedValue$1(t2);
+    },
+    $signature: 1
+  };
+  A._SerializeVisitor_visitCssDeclaration_closure2.prototype = {
+    call$0() {
+      return this.node.value.value.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor_visitList_closure2.prototype = {
+    call$1(element) {
+      return !element.get$isBlank();
+    },
+    $signature: 49
+  };
+  A._SerializeVisitor_visitList_closure3.prototype = {
+    call$1(element) {
+      var t1 = this.$this,
+        needsParens = t1._serialize0$_elementNeedsParens$2(this.value._list1$_separator, element);
+      if (needsParens)
+        t1._serialize0$_buffer.writeCharCode$1(40);
+      element.accept$1(t1);
+      if (needsParens)
+        t1._serialize0$_buffer.writeCharCode$1(41);
+    },
+    $signature: 63
+  };
+  A._SerializeVisitor_visitList_closure4.prototype = {
+    call$1(element) {
+      element.accept$1(this.$this);
+    },
+    $signature: 63
+  };
+  A._SerializeVisitor_visitMap_closure0.prototype = {
+    call$1(entry) {
+      var t1 = this.$this;
+      t1._serialize0$_writeMapElement$1(entry.key);
+      t1._serialize0$_buffer.write$1(0, ": ");
+      t1._serialize0$_writeMapElement$1(entry.value);
+    },
+    $signature: 536
+  };
+  A._SerializeVisitor_visitSelectorList_closure0.prototype = {
+    call$1(complex) {
+      return !complex.accept$1(B._IsInvisibleVisitor_true0);
+    },
+    $signature: 18
+  };
+  A._SerializeVisitor__write_closure0.prototype = {
+    call$0() {
+      return this.$this._serialize0$_buffer.write$1(0, this.value.value);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor__visitChildren_closure1.prototype = {
+    call$0() {
+      return this.child.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A._SerializeVisitor__visitChildren_closure2.prototype = {
+    call$0() {
+      this.child.accept$1(this.$this);
+    },
+    $signature: 0
+  };
+  A.OutputStyle0.prototype = {
+    _enumToString$0() {
+      return "OutputStyle." + this._name;
+    }
+  };
+  A.LineFeed0.prototype = {
+    _enumToString$0() {
+      return "LineFeed." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.ShadowedModuleView0.prototype = {
+    get$url(_) {
+      var t1 = this._shadowed_view0$_inner;
+      return t1.get$url(t1);
+    },
+    get$upstream() {
+      return this._shadowed_view0$_inner.get$upstream();
+    },
+    get$extensionStore() {
+      return this._shadowed_view0$_inner.get$extensionStore();
+    },
+    get$css(_) {
+      var t1 = this._shadowed_view0$_inner;
+      return t1.get$css(t1);
+    },
+    get$preModuleComments() {
+      return this._shadowed_view0$_inner.get$preModuleComments();
+    },
+    get$transitivelyContainsCss() {
+      return this._shadowed_view0$_inner.get$transitivelyContainsCss();
+    },
+    get$transitivelyContainsExtensions() {
+      return this._shadowed_view0$_inner.get$transitivelyContainsExtensions();
+    },
+    setVariable$3($name, value, nodeWithSpan) {
+      if (!this.variables.containsKey$1($name))
+        throw A.wrapException(A.SassScriptException$0("Undefined variable.", null));
+      else
+        this._shadowed_view0$_inner.setVariable$3($name, value, nodeWithSpan);
+    },
+    variableIdentity$1($name) {
+      return this._shadowed_view0$_inner.variableIdentity$1($name);
+    },
+    $eq(_, other) {
+      var t1, t2, _this = this;
+      if (other == null)
+        return false;
+      if (other instanceof A.ShadowedModuleView0)
+        if (_this._shadowed_view0$_inner.$eq(0, other._shadowed_view0$_inner)) {
+          t1 = _this.variables;
+          t1 = t1.get$keys(t1);
+          t2 = other.variables;
+          if (B.C_IterableEquality.equals$2(0, t1, t2.get$keys(t2))) {
+            t1 = _this.functions;
+            t1 = t1.get$keys(t1);
+            t2 = other.functions;
+            if (B.C_IterableEquality.equals$2(0, t1, t2.get$keys(t2))) {
+              t1 = _this.mixins;
+              t1 = t1.get$keys(t1);
+              t2 = other.mixins;
+              t2 = B.C_IterableEquality.equals$2(0, t1, t2.get$keys(t2));
+              t1 = t2;
+            } else
+              t1 = false;
+          } else
+            t1 = false;
+        } else
+          t1 = false;
+      else
+        t1 = false;
+      return t1;
+    },
+    get$hashCode(_) {
+      var t1 = this._shadowed_view0$_inner;
+      return t1.get$hashCode(t1);
+    },
+    cloneCss$0() {
+      var _this = this;
+      return new A.ShadowedModuleView0(_this._shadowed_view0$_inner.cloneCss$0(), _this.variables, _this.variableNodes, _this.functions, _this.mixins, _this.$ti);
+    },
+    toString$0(_) {
+      return "shadowed " + this._shadowed_view0$_inner.toString$0(0);
+    },
+    $isModule1: 1,
+    get$variables() {
+      return this.variables;
+    },
+    get$variableNodes() {
+      return this.variableNodes;
+    },
+    get$functions(receiver) {
+      return this.functions;
+    },
+    get$mixins() {
+      return this.mixins;
+    }
+  };
+  A.SilentComment0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitSilentComment$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.text;
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SimpleSelector0.prototype = {
+    get$specificity() {
+      return 1000;
+    },
+    addSuffix$1(suffix) {
+      return A.throwExpression(A.MultiSpanSassException$0('Selector "' + this.toString$0(0) + "\" can't have a suffix", this.span, "outer selector", A.LinkedHashMap_LinkedHashMap$_empty(type$.FileSpan, type$.String), null));
+    },
+    unify$1(compound) {
+      var other, t1, result, addedThis, _i, simple, _this = this;
+      if (compound.length === 1) {
+        other = compound[0];
+        if (!(other instanceof A.UniversalSelector0))
+          if (other instanceof A.PseudoSelector0)
+            t1 = other.isClass && other.name === "host" || other.get$isHostContext();
+          else
+            t1 = false;
+        else
+          t1 = true;
+      } else {
+        other = null;
+        t1 = false;
+      }
+      if (t1)
+        return other.unify$1(A._setArrayType([_this], type$.JSArray_SimpleSelector_2));
+      if (B.JSArray_methods.contains$1(compound, _this))
+        return compound;
+      result = A._setArrayType([], type$.JSArray_SimpleSelector_2);
+      for (t1 = compound.length, addedThis = false, _i = 0; _i < compound.length; compound.length === t1 || (0, A.throwConcurrentModificationError)(compound), ++_i) {
+        simple = compound[_i];
+        if (!addedThis && simple instanceof A.PseudoSelector0) {
+          result.push(_this);
+          addedThis = true;
+        }
+        result.push(simple);
+      }
+      if (!addedThis)
+        result.push(_this);
+      return result;
+    },
+    isSuperselector$1(other) {
+      var list;
+      if (this.$eq(0, other))
+        return true;
+      if (other instanceof A.PseudoSelector0 && other.isClass) {
+        list = other.selector;
+        if (list != null && $._subselectorPseudos0.contains$1(0, other.normalizedName))
+          return B.JSArray_methods.every$1(list.components, new A.SimpleSelector_isSuperselector_closure0(this));
+      }
+      return false;
+    }
+  };
+  A.SimpleSelector_isSuperselector_closure0.prototype = {
+    call$1(complex) {
+      var t1 = complex.components;
+      return t1.length !== 0 && B.JSArray_methods.any$1(B.JSArray_methods.get$last(t1).selector.components, new A.SimpleSelector_isSuperselector__closure0(this.$this));
+    },
+    $signature: 18
+  };
+  A.SimpleSelector_isSuperselector__closure0.prototype = {
+    call$1(simple) {
+      return this.$this.isSuperselector$1(simple);
+    },
+    $signature: 15
+  };
+  A.SingleUnitSassNumber0.prototype = {
+    get$numeratorUnits(_) {
+      return A.List_List$unmodifiable([this._single_unit$_unit], type$.String);
+    },
+    get$denominatorUnits(_) {
+      return B.List_empty;
+    },
+    get$hasUnits() {
+      return true;
+    },
+    get$hasComplexUnits() {
+      return false;
+    },
+    withValue$1(value) {
+      return new A.SingleUnitSassNumber0(this._single_unit$_unit, value, null);
+    },
+    withSlash$2(numerator, denominator) {
+      return new A.SingleUnitSassNumber0(this._single_unit$_unit, this._number1$_value, new A._Record_2(numerator, denominator));
+    },
+    hasUnit$1(unit) {
+      return unit === this._single_unit$_unit;
+    },
+    hasCompatibleUnits$1(other) {
+      return other instanceof A.SingleUnitSassNumber0 && A.conversionFactor0(this._single_unit$_unit, other._single_unit$_unit) != null;
+    },
+    hasPossiblyCompatibleUnits$1(other) {
+      var t1, knownCompatibilities, otherUnit;
+      if (!(other instanceof A.SingleUnitSassNumber0))
+        return false;
+      t1 = $.$get$_knownCompatibilitiesByUnit0();
+      knownCompatibilities = t1.$index(0, this._single_unit$_unit.toLowerCase());
+      if (knownCompatibilities == null)
+        return true;
+      otherUnit = other._single_unit$_unit.toLowerCase();
+      return knownCompatibilities.contains$1(0, otherUnit) || !t1.containsKey$1(otherUnit);
+    },
+    compatibleWithUnit$1(unit) {
+      return A.conversionFactor0(this._single_unit$_unit, unit) != null;
+    },
+    coerceToMatch$3(other, $name, otherName) {
+      var t1 = other instanceof A.SingleUnitSassNumber0 ? this._single_unit$_coerceToUnit$1(other._single_unit$_unit) : null;
+      return t1 == null ? this.super$SassNumber$coerceToMatch0(other, $name, otherName) : t1;
+    },
+    coerceToMatch$1(other) {
+      return this.coerceToMatch$3(other, null, null);
+    },
+    coerceValueToMatch$3(other, $name, otherName) {
+      var t1 = other instanceof A.SingleUnitSassNumber0 ? this._single_unit$_coerceValueToUnit$1(other._single_unit$_unit) : null;
+      return t1 == null ? this.super$SassNumber$coerceValueToMatch0(other, $name, otherName) : t1;
+    },
+    coerceValueToMatch$1(other) {
+      return this.coerceValueToMatch$3(other, null, null);
+    },
+    convertToMatch$3(other, $name, otherName) {
+      var t1 = other instanceof A.SingleUnitSassNumber0 ? this._single_unit$_coerceToUnit$1(other._single_unit$_unit) : null;
+      return t1 == null ? this.super$SassNumber$convertToMatch(other, $name, otherName) : t1;
+    },
+    convertValueToMatch$3(other, $name, otherName) {
+      var t1 = other instanceof A.SingleUnitSassNumber0 ? this._single_unit$_coerceValueToUnit$1(other._single_unit$_unit) : null;
+      return t1 == null ? this.super$SassNumber$convertValueToMatch0(other, $name, otherName) : t1;
+    },
+    convertValueToMatch$1(other) {
+      return this.convertValueToMatch$3(other, null, null);
+    },
+    coerce$3(newNumerators, newDenominators, $name) {
+      var t1 = J.getInterceptor$asx(newNumerators);
+      t1 = t1.get$length(newNumerators) === 1 && J.get$isEmpty$asx(newDenominators) ? this._single_unit$_coerceToUnit$1(t1.$index(newNumerators, 0)) : null;
+      return t1 == null ? this.super$SassNumber$coerce0(newNumerators, newDenominators, $name) : t1;
+    },
+    coerce$2(newNumerators, newDenominators) {
+      return this.coerce$3(newNumerators, newDenominators, null);
+    },
+    coerceValue$3(newNumerators, newDenominators, $name) {
+      var t1 = J.getInterceptor$asx(newNumerators);
+      t1 = t1.get$length(newNumerators) === 1 && J.get$isEmpty$asx(newDenominators) ? this._single_unit$_coerceValueToUnit$1(t1.$index(newNumerators, 0)) : null;
+      return t1 == null ? this.super$SassNumber$coerceValue0(newNumerators, newDenominators, $name) : t1;
+    },
+    coerceValueToUnit$2(unit, $name) {
+      var t1 = this._single_unit$_coerceValueToUnit$1(unit);
+      return t1 == null ? this.super$SassNumber$coerceValueToUnit0(unit, $name) : t1;
+    },
+    coerceValueToUnit$1(unit) {
+      return this.coerceValueToUnit$2(unit, null);
+    },
+    _single_unit$_coerceToUnit$1(unit) {
+      var t1 = this._single_unit$_unit;
+      if (t1 === unit)
+        return this;
+      return A.NullableExtension_andThen0(A.conversionFactor0(unit, t1), new A.SingleUnitSassNumber__coerceToUnit_closure0(this, unit));
+    },
+    _single_unit$_coerceValueToUnit$1(unit) {
+      return A.NullableExtension_andThen0(A.conversionFactor0(unit, this._single_unit$_unit), new A.SingleUnitSassNumber__coerceValueToUnit_closure0(this));
+    },
+    multiplyUnits$3(value, otherNumerators, otherDenominators) {
+      var mutableOtherDenominators, t1 = {};
+      t1.value = value;
+      t1.newNumerators = otherNumerators;
+      mutableOtherDenominators = A._setArrayType(otherDenominators.slice(0), A._arrayInstanceType(otherDenominators));
+      A.removeFirstWhere0(mutableOtherDenominators, new A.SingleUnitSassNumber_multiplyUnits_closure1(t1, this), new A.SingleUnitSassNumber_multiplyUnits_closure2(t1, this));
+      return A.SassNumber_SassNumber$withUnits0(t1.value, mutableOtherDenominators, t1.newNumerators);
+    },
+    unaryMinus$0() {
+      return new A.SingleUnitSassNumber0(this._single_unit$_unit, -this._number1$_value, null);
+    },
+    $eq(_, other) {
+      var factor;
+      if (other == null)
+        return false;
+      if (other instanceof A.SingleUnitSassNumber0) {
+        factor = A.conversionFactor0(other._single_unit$_unit, this._single_unit$_unit);
+        return factor != null && A.fuzzyEquals0(this._number1$_value * factor, other._number1$_value);
+      } else
+        return false;
+    },
+    get$hashCode(_) {
+      var _this = this,
+        t1 = _this.hashCache;
+      return t1 == null ? _this.hashCache = A.fuzzyHashCode0(_this._number1$_value * _this.canonicalMultiplierForUnit$1(_this._single_unit$_unit)) : t1;
+    }
+  };
+  A.SingleUnitSassNumber__coerceToUnit_closure0.prototype = {
+    call$1(factor) {
+      return new A.SingleUnitSassNumber0(this.unit, this.$this._number1$_value * factor, null);
+    },
+    $signature: 537
+  };
+  A.SingleUnitSassNumber__coerceValueToUnit_closure0.prototype = {
+    call$1(factor) {
+      return this.$this._number1$_value * factor;
+    },
+    $signature: 38
+  };
+  A.SingleUnitSassNumber_multiplyUnits_closure1.prototype = {
+    call$1(denominator) {
+      var factor = A.conversionFactor0(denominator, this.$this._single_unit$_unit);
+      if (factor == null)
+        return false;
+      this._box_0.value *= factor;
+      return true;
+    },
+    $signature: 4
+  };
+  A.SingleUnitSassNumber_multiplyUnits_closure2.prototype = {
+    call$0() {
+      var t1 = A._setArrayType([this.$this._single_unit$_unit], type$.JSArray_String),
+        t2 = this._box_0;
+      B.JSArray_methods.addAll$1(t1, t2.newNumerators);
+      t2.newNumerators = t1;
+    },
+    $signature: 0
+  };
+  A.SourceMapBuffer0.prototype = {
+    get$_source_map_buffer0$_targetLocation() {
+      var t1 = this._source_map_buffer0$_buffer._contents,
+        t2 = this._source_map_buffer0$_line;
+      return A.SourceLocation$(t1.length, this._source_map_buffer0$_column, t2, null);
+    },
+    get$length(_) {
+      return this._source_map_buffer0$_buffer._contents.length;
+    },
+    forSpan$1$2(span, callback) {
+      var t1, _this = this,
+        wasInSpan = _this._source_map_buffer0$_inSpan;
+      _this._source_map_buffer0$_inSpan = true;
+      _this._source_map_buffer0$_addEntry$2(span.get$start(span), _this.get$_source_map_buffer0$_targetLocation());
+      try {
+        t1 = callback.call$0();
+        return t1;
+      } finally {
+        _this._source_map_buffer0$_inSpan = wasInSpan;
+      }
+    },
+    forSpan$2(span, callback) {
+      return this.forSpan$1$2(span, callback, type$.dynamic);
+    },
+    _source_map_buffer0$_addEntry$2(source, target) {
+      var entry, t2,
+        t1 = this._source_map_buffer0$_entries;
+      if (t1.length !== 0) {
+        entry = B.JSArray_methods.get$last(t1);
+        t2 = entry.source;
+        if (t2.file.getLine$1(t2.offset) === source.file.getLine$1(source.offset) && entry.target.line === target.line)
+          return;
+        if (entry.target.offset === target.offset)
+          return;
+      }
+      t1.push(new A.Entry(source, target, null));
+    },
+    write$1(_, object) {
+      var t1, i,
+        string = J.toString$0$(object);
+      this._source_map_buffer0$_buffer._contents += string;
+      for (t1 = string.length, i = 0; i < t1; ++i)
+        if (string.charCodeAt(i) === 10)
+          this._source_map_buffer0$_writeLine$0();
+        else
+          ++this._source_map_buffer0$_column;
+    },
+    writeCharCode$1(charCode) {
+      var t1 = this._source_map_buffer0$_buffer,
+        t2 = A.Primitives_stringFromCharCode(charCode);
+      t1._contents += t2;
+      if (charCode === 10)
+        this._source_map_buffer0$_writeLine$0();
+      else
+        ++this._source_map_buffer0$_column;
+    },
+    _source_map_buffer0$_writeLine$0() {
+      var _this = this,
+        t1 = _this._source_map_buffer0$_entries;
+      if (B.JSArray_methods.get$last(t1).target.line === _this._source_map_buffer0$_line && B.JSArray_methods.get$last(t1).target.column === _this._source_map_buffer0$_column)
+        t1.pop();
+      ++_this._source_map_buffer0$_line;
+      _this._source_map_buffer0$_column = 0;
+      if (_this._source_map_buffer0$_inSpan)
+        t1.push(new A.Entry(B.JSArray_methods.get$last(t1).source, _this.get$_source_map_buffer0$_targetLocation(), null));
+    },
+    toString$0(_) {
+      var t1 = this._source_map_buffer0$_buffer._contents;
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    buildSourceMap$1$prefix(prefix) {
+      var i, t2, prefixColumn, _box_0 = {},
+        t1 = prefix.length;
+      if (t1 === 0)
+        return A.SingleMapping_SingleMapping$fromEntries(this._source_map_buffer0$_entries);
+      _box_0.prefixColumn = _box_0.prefixLines = 0;
+      for (i = 0, t2 = 0; i < t1; ++i)
+        if (prefix.charCodeAt(i) === 10) {
+          ++_box_0.prefixLines;
+          _box_0.prefixColumn = 0;
+          t2 = 0;
+        } else {
+          prefixColumn = t2 + 1;
+          _box_0.prefixColumn = prefixColumn;
+          t2 = prefixColumn;
+        }
+      t2 = this._source_map_buffer0$_entries;
+      return A.SingleMapping_SingleMapping$fromEntries(new A.MappedListIterable(t2, new A.SourceMapBuffer_buildSourceMap_closure0(_box_0, t1), A._arrayInstanceType(t2)._eval$1("MappedListIterable<1,Entry>")));
+    }
+  };
+  A.SourceMapBuffer_buildSourceMap_closure0.prototype = {
+    call$1(entry) {
+      var t1 = entry.target,
+        t2 = t1.line,
+        t3 = this._box_0,
+        t4 = t3.prefixLines;
+      t3 = t2 === 0 ? t3.prefixColumn : 0;
+      return new A.Entry(entry.source, A.SourceLocation$(t1.offset + this.prefixLength, t1.column + t3, t2 + t4, null), entry.identifierName);
+    },
+    $signature: 160
+  };
+  A.updateSourceSpanPrototype_closure.prototype = {
+    call$0() {
+      return this.span;
+    },
+    $signature: 26
+  };
+  A.updateSourceSpanPrototype_closure0.prototype = {
+    call$1(span) {
+      return span.get$start(span);
+    },
+    $signature: 220
+  };
+  A.updateSourceSpanPrototype_closure1.prototype = {
+    call$1(span) {
+      return span.get$end(span);
+    },
+    $signature: 220
+  };
+  A.updateSourceSpanPrototype_closure2.prototype = {
+    call$1(span) {
+      return A.NullableExtension_andThen0(span.get$sourceUrl(span), A.utils1__dartToJSUrl$closure());
+    },
+    $signature: 539
+  };
+  A.updateSourceSpanPrototype_closure3.prototype = {
+    call$1(span) {
+      return span.get$text();
+    },
+    $signature: 212
+  };
+  A.updateSourceSpanPrototype_closure4.prototype = {
+    call$1(span) {
+      return span.get$context(span);
+    },
+    $signature: 212
+  };
+  A.updateSourceSpanPrototype_closure5.prototype = {
+    call$1($location) {
+      return $location.get$line();
+    },
+    $signature: 211
+  };
+  A.updateSourceSpanPrototype_closure6.prototype = {
+    call$1($location) {
+      return $location.get$column();
+    },
+    $signature: 211
+  };
+  A.StatementSearchVisitor0.prototype = {
+    visitAtRootRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitAtRule$1(node) {
+      return A.NullableExtension_andThen0(node.children, this.get$visitChildren());
+    },
+    visitContentBlock$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitContentRule$1(node) {
+      return null;
+    },
+    visitDebugRule$1(node) {
+      return null;
+    },
+    visitDeclaration$1(node) {
+      return A.NullableExtension_andThen0(node.children, this.get$visitChildren());
+    },
+    visitEachRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitErrorRule$1(node) {
+      return null;
+    },
+    visitExtendRule$1(node) {
+      return null;
+    },
+    visitForRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitForwardRule$1(node) {
+      return null;
+    },
+    visitFunctionRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitIfRule$1(node) {
+      var t1 = A.IterableExtension_search0(node.clauses, new A.StatementSearchVisitor_visitIfRule_closure1(this));
+      return t1 == null ? A.NullableExtension_andThen0(node.lastClause, new A.StatementSearchVisitor_visitIfRule_closure2(this)) : t1;
+    },
+    visitImportRule$1(node) {
+      return null;
+    },
+    visitIncludeRule$1(node) {
+      return A.NullableExtension_andThen0(node.content, this.get$visitContentBlock());
+    },
+    visitLoudComment$1(node) {
+      return null;
+    },
+    visitMediaRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitMixinRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitReturnRule$1(node) {
+      return null;
+    },
+    visitSilentComment$1(node) {
+      return null;
+    },
+    visitStyleRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitStylesheet$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitSupportsRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitUseRule$1(node) {
+      return null;
+    },
+    visitVariableDeclaration$1(node) {
+      return null;
+    },
+    visitWarnRule$1(node) {
+      return null;
+    },
+    visitWhileRule$1(node) {
+      return this.visitChildren$1(node.children);
+    },
+    visitChildren$1(children) {
+      return A.IterableExtension_search0(children, new A.StatementSearchVisitor_visitChildren_closure0(this));
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule_closure1.prototype = {
+    call$1(clause) {
+      return A.IterableExtension_search0(clause.children, new A.StatementSearchVisitor_visitIfRule__closure2(this.$this));
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor0.T?(IfClause0)");
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule__closure2.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor0.T?(Statement0)");
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule_closure2.prototype = {
+    call$1(lastClause) {
+      return A.IterableExtension_search0(lastClause.children, new A.StatementSearchVisitor_visitIfRule__closure1(this.$this));
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor0.T?(ElseClause0)");
+    }
+  };
+  A.StatementSearchVisitor_visitIfRule__closure1.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor0.T?(Statement0)");
+    }
+  };
+  A.StatementSearchVisitor_visitChildren_closure0.prototype = {
+    call$1(child) {
+      return child.accept$1(this.$this);
+    },
+    $signature() {
+      return A._instanceType(this.$this)._eval$1("StatementSearchVisitor0.T?(Statement0)");
+    }
+  };
+  A.StaticImport0.prototype = {
+    toString$0(_) {
+      var t1 = this.url.toString$0(0),
+        t2 = this.modifiers;
+      return t1 + (t2 == null ? "" : " " + t2.toString$0(0));
+    },
+    $isImport0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.StderrLogger0.prototype = {
+    warn$4$deprecation$span$trace(_, message, deprecation, span, trace) {
+      var t2,
+        result = new A.StringBuffer(""),
+        t1 = this.color;
+      if (t1) {
+        t2 = result._contents = "" + "\x1b[33m\x1b[1m";
+        t2 = result._contents = (deprecation ? result._contents = t2 + "Deprecation " : t2) + "Warning\x1b[0m";
+      } else
+        t2 = result._contents = (deprecation ? result._contents = "" + "DEPRECATION " : "") + "WARNING";
+      if (span == null)
+        t1 = result._contents = t2 + (": " + message + "\n");
+      else if (trace != null) {
+        t1 = t2 + (": " + message + "\n\n" + span.highlight$1$color(t1) + "\n");
+        result._contents = t1;
+      } else {
+        t1 = t2 + (" on " + span.message$2$color(0, "\n" + message, t1) + "\n");
+        result._contents = t1;
+      }
+      if (trace != null)
+        result._contents = t1 + (A.indent0(B.JSString_methods.trimRight$0(trace.toString$0(0)), 4) + "\n");
+      A.printError0(result);
+    },
+    warn$1(_, message) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, null);
+    },
+    warn$3$span$trace(_, message, span, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, trace);
+    },
+    warn$2$span(_, message, span) {
+      return this.warn$4$deprecation$span$trace(0, message, false, span, null);
+    },
+    warn$2$trace(_, message, trace) {
+      return this.warn$4$deprecation$span$trace(0, message, false, null, trace);
+    },
+    debug$2(_, message, span) {
+      var url, t3, t4,
+        t1 = span.file,
+        t2 = span._file$_start;
+      if (A.FileLocation$_(t1, t2).file.url == null)
+        url = "-";
+      else {
+        t3 = A.FileLocation$_(t1, t2).file.url;
+        t4 = $.$get$context();
+        t3.toString;
+        url = t4.prettyUri$1(t3);
+      }
+      t1 = A.FileLocation$_(t1, t2);
+      t1 = t1.file.getLine$1(t1.offset);
+      t2 = this.color ? "\x1b[1mDebug\x1b[0m" : "DEBUG";
+      t2 = "" + (url + ":" + (t1 + 1) + " ") + t2 + (": " + message);
+      A.printError0(t2.charCodeAt(0) == 0 ? t2 : t2);
+    }
+  };
+  A.StringExpression0.prototype = {
+    get$span(_) {
+      return this.text.span;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitStringExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    asInterpolation$1$static($static) {
+      var t1, t2, quote, t3, t4, buffer, t5, t6, _i, value;
+      if (!this.hasQuotes)
+        return this.text;
+      t1 = this.text;
+      t2 = t1.contents;
+      quote = A.StringExpression__bestQuote0(new A.WhereTypeIterable(t2, type$.WhereTypeIterable_String));
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer0(t3, t4);
+      t5 = A.Primitives_stringFromCharCode(quote);
+      t3._contents += t5;
+      for (t5 = t2.length, t6 = type$.Expression_2, _i = 0; _i < t5; ++_i) {
+        value = t2[_i];
+        if (t6._is(value)) {
+          buffer._interpolation_buffer0$_flushText$0();
+          t4.push(value);
+          continue;
+        }
+        if (typeof value == "string")
+          A.StringExpression__quoteInnerText0(value, quote, buffer, $static);
+      }
+      t2 = A.Primitives_stringFromCharCode(quote);
+      t3._contents += t2;
+      return buffer.interpolation$1(t1.span);
+    },
+    asInterpolation$0() {
+      return this.asInterpolation$1$static(false);
+    },
+    toString$0(_) {
+      return this.asInterpolation$0().toString$0(0);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1
+  };
+  A.module_closure10.prototype = {
+    call$1($arguments) {
+      var limit, t2, chunks, i, lastEnd, match, t3,
+        t1 = J.getInterceptor$asx($arguments),
+        string = t1.$index($arguments, 0).assertString$1("string"),
+        separator = t1.$index($arguments, 1).assertString$1("separator");
+      t1 = t1.$index($arguments, 2).get$realNull();
+      limit = t1 == null ? null : t1.assertNumber$1("limit").assertInt$1("limit");
+      if (limit != null && limit < 1)
+        throw A.wrapException(A.SassScriptException$0("$limit: Must be 1 or greater, was " + A.S(limit) + ".", null));
+      t1 = string._string0$_text;
+      if (t1.length === 0)
+        return B.SassList_bdS2;
+      else {
+        t2 = separator._string0$_text;
+        if (t2.length === 0)
+          return A.SassList$0(A.MappedIterable_MappedIterable(new A.Runes(t1), new A.module__closure2(string), type$.Runes._eval$1("Iterable.E"), type$.Value_2), B.ListSeparator_ECn0, true);
+      }
+      chunks = A._setArrayType([], type$.JSArray_String);
+      for (t2 = B.JSString_methods.allMatches$1(t2, t1), t2 = new A._StringAllMatchesIterator(t2._input, t2._pattern, t2.__js_helper$_index), i = 0, lastEnd = 0; t2.moveNext$0();) {
+        match = t2.__js_helper$_current;
+        t3 = match.start;
+        chunks.push(B.JSString_methods.substring$2(t1, lastEnd, t3));
+        lastEnd = t3 + match.pattern.length;
+        ++i;
+        if (i === limit)
+          break;
+      }
+      chunks.push(B.JSString_methods.substring$1(t1, lastEnd));
+      return A.SassList$0(new A.MappedListIterable(chunks, new A.module__closure3(string), type$.MappedListIterable_String_Value_2), B.ListSeparator_ECn0, true);
+    },
+    $signature: 22
+  };
+  A.module__closure2.prototype = {
+    call$1(rune) {
+      return new A.SassString0(A.Primitives_stringFromCharCode(rune), this.string._string0$_hasQuotes);
+    },
+    $signature: 542
+  };
+  A.module__closure3.prototype = {
+    call$1(chunk) {
+      return new A.SassString0(chunk, this.string._string0$_hasQuotes);
+    },
+    $signature: 543
+  };
+  A._unquote_closure0.prototype = {
+    call$1($arguments) {
+      var string = J.$index$asx($arguments, 0).assertString$1("string");
+      if (!string._string0$_hasQuotes)
+        return string;
+      return new A.SassString0(string._string0$_text, false);
+    },
+    $signature: 19
+  };
+  A._quote_closure0.prototype = {
+    call$1($arguments) {
+      var string = J.$index$asx($arguments, 0).assertString$1("string");
+      if (string._string0$_hasQuotes)
+        return string;
+      return new A.SassString0(string._string0$_text, true);
+    },
+    $signature: 19
+  };
+  A._length_closure1.prototype = {
+    call$1($arguments) {
+      return A.SassNumber_SassNumber0(J.$index$asx($arguments, 0).assertString$1("string").get$_string0$_sassLength(), null);
+    },
+    $signature: 12
+  };
+  A._insert_closure0.prototype = {
+    call$1($arguments) {
+      var indexInt, codeUnitIndex, _s5_ = "index",
+        t1 = J.getInterceptor$asx($arguments),
+        string = t1.$index($arguments, 0).assertString$1("string"),
+        insert = t1.$index($arguments, 1).assertString$1("insert"),
+        index = t1.$index($arguments, 2).assertNumber$1(_s5_);
+      index.assertNoUnits$1(_s5_);
+      indexInt = index.assertInt$1(_s5_);
+      if (indexInt < 0)
+        indexInt = Math.max(string.get$_string0$_sassLength() + indexInt + 2, 0);
+      t1 = string._string0$_text;
+      codeUnitIndex = A.codepointIndexToCodeUnitIndex0(t1, A._codepointForIndex0(indexInt, string.get$_string0$_sassLength(), false));
+      return new A.SassString0(B.JSString_methods.replaceRange$3(t1, codeUnitIndex, codeUnitIndex, insert._string0$_text), string._string0$_hasQuotes);
+    },
+    $signature: 19
+  };
+  A._index_closure1.prototype = {
+    call$1($arguments) {
+      var t1 = J.getInterceptor$asx($arguments),
+        t2 = t1.$index($arguments, 0).assertString$1("string")._string0$_text,
+        codeUnitIndex = B.JSString_methods.indexOf$1(t2, t1.$index($arguments, 1).assertString$1("substring")._string0$_text);
+      if (codeUnitIndex === -1)
+        return B.C__SassNull0;
+      return A.SassNumber_SassNumber0(A.codeUnitIndexToCodepointIndex0(t2, codeUnitIndex) + 1, null);
+    },
+    $signature: 3
+  };
+  A._slice_closure0.prototype = {
+    call$1($arguments) {
+      var lengthInCodepoints, endInt, startCodepoint, endCodepoint,
+        _s8_ = "start-at",
+        t1 = J.getInterceptor$asx($arguments),
+        string = t1.$index($arguments, 0).assertString$1("string"),
+        start = t1.$index($arguments, 1).assertNumber$1(_s8_),
+        end = t1.$index($arguments, 2).assertNumber$1("end-at");
+      start.assertNoUnits$1(_s8_);
+      end.assertNoUnits$1("end-at");
+      lengthInCodepoints = string.get$_string0$_sassLength();
+      endInt = end.assertInt$0();
+      if (endInt === 0)
+        return string._string0$_hasQuotes ? $.$get$_emptyQuoted0() : $.$get$_emptyUnquoted0();
+      startCodepoint = A._codepointForIndex0(start.assertInt$0(), lengthInCodepoints, false);
+      endCodepoint = A._codepointForIndex0(endInt, lengthInCodepoints, true);
+      if (endCodepoint === lengthInCodepoints)
+        --endCodepoint;
+      if (endCodepoint < startCodepoint)
+        return string._string0$_hasQuotes ? $.$get$_emptyQuoted0() : $.$get$_emptyUnquoted0();
+      t1 = string._string0$_text;
+      return new A.SassString0(B.JSString_methods.substring$2(t1, A.codepointIndexToCodeUnitIndex0(t1, startCodepoint), A.codepointIndexToCodeUnitIndex0(t1, endCodepoint + 1)), string._string0$_hasQuotes);
+    },
+    $signature: 19
+  };
+  A._toUpperCase_closure0.prototype = {
+    call$1($arguments) {
+      var t1, t2, i, t3, t4,
+        string = J.$index$asx($arguments, 0).assertString$1("string");
+      for (t1 = string._string0$_text, t2 = t1.length, i = 0, t3 = ""; i < t2; ++i) {
+        t4 = t1.charCodeAt(i);
+        t3 += A.Primitives_stringFromCharCode(t4 >= 97 && t4 <= 122 ? t4 & 4294967263 : t4);
+      }
+      return new A.SassString0(t3.charCodeAt(0) == 0 ? t3 : t3, string._string0$_hasQuotes);
+    },
+    $signature: 19
+  };
+  A._toLowerCase_closure0.prototype = {
+    call$1($arguments) {
+      var t1, t2, i, t3, t4,
+        string = J.$index$asx($arguments, 0).assertString$1("string");
+      for (t1 = string._string0$_text, t2 = t1.length, i = 0, t3 = ""; i < t2; ++i) {
+        t4 = t1.charCodeAt(i);
+        t3 += A.Primitives_stringFromCharCode(t4 >= 65 && t4 <= 90 ? t4 | 32 : t4);
+      }
+      return new A.SassString0(t3.charCodeAt(0) == 0 ? t3 : t3, string._string0$_hasQuotes);
+    },
+    $signature: 19
+  };
+  A._uniqueId_closure0.prototype = {
+    call$1($arguments) {
+      var t1 = $.$get$_previousUniqueId0() + ($.$get$_random1().nextInt$1(36) + 1);
+      $._previousUniqueId0 = t1;
+      if (t1 > Math.pow(36, 6))
+        $._previousUniqueId0 = B.JSInt_methods.$mod($.$get$_previousUniqueId0(), A._asInt(Math.pow(36, 6)));
+      return new A.SassString0("u" + B.JSString_methods.padLeft$2(B.JSInt_methods.toRadixString$1($.$get$_previousUniqueId0(), 36), 6, "0"), false);
+    },
+    $signature: 19
+  };
+  A.stringClass_closure.prototype = {
+    call$0() {
+      var t2,
+        t1 = type$.JSClass,
+        jsClass = t1._as(A.allowInteropCaptureThisNamed("sass.SassString", new A.stringClass__closure()));
+      A.LinkedHashMap_LinkedHashMap$_literal(["text", new A.stringClass__closure0(), "hasQuotes", new A.stringClass__closure1(), "sassLength", new A.stringClass__closure2()], type$.String, type$.Function).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      J.get$$prototype$x(jsClass).sassIndexToStringIndex = A.allowInteropCaptureThisNamed("sassIndexToStringIndex", new A.stringClass__closure3());
+      t2 = $.$get$_emptyQuoted0();
+      A.JSClassExtension_injectSuperclass(t1._as(t2.constructor), jsClass);
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.stringClass__closure.prototype = {
+    call$3($self, textOrOptions, options) {
+      var t1;
+      if (typeof textOrOptions == "string") {
+        t1 = options == null ? null : J.get$quotes$x(options);
+        t1 = new A.SassString0(textOrOptions, t1 == null ? true : t1);
+      } else {
+        type$.nullable__ConstructorOptions_3._as(textOrOptions);
+        t1 = textOrOptions == null ? null : J.get$quotes$x(textOrOptions);
+        t1 = (t1 == null ? true : t1) ? $.$get$_emptyQuoted0() : $.$get$_emptyUnquoted0();
+      }
+      return t1;
+    },
+    call$1($self) {
+      return this.call$3($self, null, null);
+    },
+    call$2($self, textOrOptions) {
+      return this.call$3($self, textOrOptions, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null, null];
+    },
+    $signature: 544
+  };
+  A.stringClass__closure0.prototype = {
+    call$1($self) {
+      return $self._string0$_text;
+    },
+    $signature: 545
+  };
+  A.stringClass__closure1.prototype = {
+    call$1($self) {
+      return $self._string0$_hasQuotes;
+    },
+    $signature: 546
+  };
+  A.stringClass__closure2.prototype = {
+    call$1($self) {
+      return $self.get$_string0$_sassLength();
+    },
+    $signature: 547
+  };
+  A.stringClass__closure3.prototype = {
+    call$3($self, sassIndex, $name) {
+      var t1,
+        index = sassIndex.assertNumber$1($name).assertInt$1($name);
+      if (index === 0)
+        A.throwExpression(A.SassScriptException$0("String index may not be 0.", $name));
+      else if (Math.abs(index) > $self.get$_string0$_sassLength())
+        A.throwExpression(A.SassScriptException$0("Invalid index " + sassIndex.toString$0(0) + " for a string with " + $self.get$_string0$_sassLength() + " characters.", $name));
+      t1 = index < 0 ? $self.get$_string0$_sassLength() + index : index - 1;
+      return A.codepointIndexToCodeUnitIndex0($self._string0$_text, t1);
+    },
+    call$2($self, sassIndex) {
+      return this.call$3($self, sassIndex, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 548
+  };
+  A._ConstructorOptions1.prototype = {};
+  A._NodeSassString.prototype = {};
+  A.legacyStringClass_closure.prototype = {
+    call$3(thisArg, value, dartValue) {
+      var t1;
+      if (dartValue == null) {
+        value.toString;
+        t1 = new A.SassString0(value, false);
+      } else
+        t1 = dartValue;
+      J.set$dartValue$x(thisArg, t1);
+    },
+    call$2(thisArg, value) {
+      return this.call$3(thisArg, value, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 549
+  };
+  A.legacyStringClass_closure0.prototype = {
+    call$1(thisArg) {
+      return J.get$dartValue$x(thisArg)._string0$_text;
+    },
+    $signature: 550
+  };
+  A.legacyStringClass_closure1.prototype = {
+    call$2(thisArg, value) {
+      J.set$dartValue$x(thisArg, new A.SassString0(value, false));
+    },
+    $signature: 551
+  };
+  A.SassString0.prototype = {
+    get$_string0$_sassLength() {
+      var result, _this = this,
+        value = _this._string0$__SassString__sassLength_FI;
+      if (value === $) {
+        result = new A.Runes(_this._string0$_text).get$length(0);
+        _this._string0$__SassString__sassLength_FI !== $ && A.throwUnnamedLateFieldADI();
+        _this._string0$__SassString__sassLength_FI = result;
+        value = result;
+      }
+      return value;
+    },
+    get$isSpecialNumber() {
+      var t1, _2_0, _0_0, _1_0;
+      if (this._string0$_hasQuotes)
+        return false;
+      t1 = this._string0$_text;
+      if (t1.length < 6)
+        return false;
+      _2_0 = t1.charCodeAt(0);
+      $label1$1: {
+        if (99 === _2_0 || 67 === _2_0) {
+          _0_0 = t1.charCodeAt(1);
+          $label0$0: {
+            if (108 === _0_0 || 76 === _0_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 97 && (t1.charCodeAt(3) | 32) === 109 && (t1.charCodeAt(4) | 32) === 112 && t1.charCodeAt(5) === 40;
+              break $label0$0;
+            }
+            if (97 === _0_0 || 65 === _0_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 108 && (t1.charCodeAt(3) | 32) === 99 && t1.charCodeAt(4) === 40;
+              break $label0$0;
+            }
+            t1 = false;
+            break $label0$0;
+          }
+          break $label1$1;
+        }
+        if (118 === _2_0 || 86 === _2_0) {
+          t1 = (t1.charCodeAt(1) | 32) === 97 && (t1.charCodeAt(2) | 32) === 114 && t1.charCodeAt(3) === 40;
+          break $label1$1;
+        }
+        if (101 === _2_0 || 69 === _2_0) {
+          t1 = (t1.charCodeAt(1) | 32) === 110 && (t1.charCodeAt(2) | 32) === 118 && t1.charCodeAt(3) === 40;
+          break $label1$1;
+        }
+        if (109 === _2_0 || 77 === _2_0) {
+          _1_0 = t1.charCodeAt(1);
+          $label2$2: {
+            if (97 === _1_0 || 65 === _1_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 120 && t1.charCodeAt(3) === 40;
+              break $label2$2;
+            }
+            if (105 === _1_0 || 73 === _1_0) {
+              t1 = (t1.charCodeAt(2) | 32) === 110 && t1.charCodeAt(3) === 40;
+              break $label2$2;
+            }
+            t1 = false;
+            break $label2$2;
+          }
+          break $label1$1;
+        }
+        t1 = false;
+        break $label1$1;
+      }
+      return t1;
+    },
+    get$isVar() {
+      if (this._string0$_hasQuotes)
+        return false;
+      var t1 = this._string0$_text;
+      if (t1.length < 8)
+        return false;
+      return (t1.charCodeAt(0) | 32) === 118 && (t1.charCodeAt(1) | 32) === 97 && (t1.charCodeAt(2) | 32) === 114 && t1.charCodeAt(3) === 40;
+    },
+    get$isBlank() {
+      return !this._string0$_hasQuotes && this._string0$_text.length === 0;
+    },
+    accept$1$1(visitor) {
+      var t1 = visitor._serialize0$_quote && this._string0$_hasQuotes,
+        t2 = this._string0$_text;
+      if (t1)
+        visitor._serialize0$_visitQuotedString$1(t2);
+      else
+        visitor._serialize0$_visitUnquotedString$1(t2);
+      return null;
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    assertString$1($name) {
+      return this;
+    },
+    plus$1(other) {
+      var t1 = this._string0$_text,
+        t2 = this._string0$_hasQuotes;
+      return other instanceof A.SassString0 ? new A.SassString0(t1 + other._string0$_text, t2) : new A.SassString0(t1 + A.serializeValue0(other, false, true), t2);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.SassString0 && this._string0$_text === other._string0$_text;
+    },
+    get$hashCode(_) {
+      var t1 = this._string0$_hashCache;
+      return t1 == null ? this._string0$_hashCache = B.JSString_methods.get$hashCode(this._string0$_text) : t1;
+    }
+  };
+  A.ModifiableCssStyleRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssStyleRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      var t1;
+      if (other instanceof A.ModifiableCssStyleRule0)
+        t1 = B.C_ListEquality.equals$2(0, other._style_rule0$_selector._box0$_inner.value.components, this._style_rule0$_selector._box0$_inner.value.components);
+      else
+        t1 = false;
+      return t1;
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssStyleRule$0(this._style_rule0$_selector, this.span, false, this.originalSelector);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.StyleRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitStyleRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return this.selector.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.CssStylesheet0.prototype = {
+    get$isGroupEnd() {
+      return false;
+    },
+    get$isChildless() {
+      return false;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitCssStylesheet$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    get$children(receiver) {
+      return this.children;
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ModifiableCssStylesheet0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssStylesheet$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      return other instanceof A.ModifiableCssStylesheet0;
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssStylesheet$0(this.span);
+    },
+    $isCssStylesheet0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.StylesheetParser0.prototype = {
+    parse$0() {
+      return this.wrapSpanFormatException$1(new A.StylesheetParser_parse_closure0(this));
+    },
+    parseArgumentDeclaration$0() {
+      return this._stylesheet0$_parseSingleProduction$1$1(new A.StylesheetParser_parseArgumentDeclaration_closure0(this), type$.ArgumentDeclaration_2);
+    },
+    _stylesheet0$_parseSingleProduction$1$1(production, $T) {
+      return this.wrapSpanFormatException$1(new A.StylesheetParser__parseSingleProduction_closure0(this, production, $T));
+    },
+    parseSignature$1$requireParens(requireParens) {
+      return this.wrapSpanFormatException$1(new A.StylesheetParser_parseSignature_closure(this, requireParens));
+    },
+    _stylesheet0$_statement$1$root(root) {
+      var t2, _this = this,
+        t1 = _this.scanner,
+        _0_0 = t1.peekChar$0();
+      if (64 === _0_0)
+        return _this.atRule$2$root(new A.StylesheetParser__statement_closure0(_this), root);
+      if (43 === _0_0) {
+        if (!_this.get$indented() || !_this.lookingAtIdentifier$1(1))
+          return _this._stylesheet0$_styleRule$0();
+        _this._stylesheet0$_isUseAllowed = false;
+        t2 = t1._string_scanner$_position;
+        t1.readChar$0();
+        return _this._stylesheet0$_includeRule$1(new A._SpanScannerState(t1, t2));
+      }
+      if (61 === _0_0) {
+        if (!_this.get$indented())
+          return _this._stylesheet0$_styleRule$0();
+        _this._stylesheet0$_isUseAllowed = false;
+        t2 = t1._string_scanner$_position;
+        t1.readChar$0();
+        _this.whitespace$0();
+        return _this._stylesheet0$_mixinRule$1(new A._SpanScannerState(t1, t2));
+      }
+      if (125 === _0_0)
+        t1.error$2$length(0, 'unmatched "}".', 1);
+      return _this._stylesheet0$_inStyleRule || _this._stylesheet0$_inUnknownAtRule || _this._stylesheet0$_inMixin || _this._stylesheet0$_inContentBlock ? _this._stylesheet0$_declarationOrStyleRule$0() : _this._stylesheet0$_variableDeclarationOrStyleRule$0();
+    },
+    _stylesheet0$_statement$0() {
+      return this._stylesheet0$_statement$1$root(false);
+    },
+    variableDeclarationWithoutNamespace$2(namespace, start_) {
+      var t1, start, $name, t2, value, flagStart, t3, guarded, global, _0_0, endPosition, t4, t5, t6, declaration, _this = this,
+        precedingComment = _this.lastSilentComment;
+      _this.lastSilentComment = null;
+      if (start_ == null) {
+        t1 = _this.scanner;
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      } else
+        start = start_;
+      $name = _this.variableName$0();
+      t1 = namespace != null;
+      if (t1)
+        _this._stylesheet0$_assertPublic$2($name, new A.StylesheetParser_variableDeclarationWithoutNamespace_closure1(_this, start));
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Sass_v, _this.scanner.spanFrom$1(start));
+      _this.whitespace$0();
+      t2 = _this.scanner;
+      t2.expectChar$1(58);
+      _this.whitespace$0();
+      value = _this._stylesheet0$_expression$0();
+      flagStart = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      for (t3 = _this.logger, guarded = false, global = false; t2.scanChar$1(33);) {
+        $label0$0: {
+          _0_0 = _this.identifier$0();
+          if ("default" === _0_0) {
+            if (guarded) {
+              endPosition = t2._string_scanner$_position;
+              t4 = t2._sourceFile;
+              t5 = flagStart.position;
+              t6 = new A._FileSpan(t4, t5, endPosition);
+              t6._FileSpan$3(t4, t5, endPosition);
+              A.WarnForDeprecation_warnForDeprecation0(t3, B.Deprecation_iXE, string$.x21defau, t6, null);
+            }
+            guarded = true;
+            break $label0$0;
+          }
+          if ("global" === _0_0) {
+            if (t1) {
+              endPosition = t2._string_scanner$_position;
+              t4 = t2._sourceFile;
+              t5 = flagStart.position;
+              t6 = new A._FileSpan(t4, t5, endPosition);
+              t6._FileSpan$3(t4, t5, endPosition);
+              _this.error$2(0, string$.x21globai, t6);
+            } else if (global) {
+              endPosition = t2._string_scanner$_position;
+              t4 = t2._sourceFile;
+              t5 = flagStart.position;
+              t6 = new A._FileSpan(t4, t5, endPosition);
+              t6._FileSpan$3(t4, t5, endPosition);
+              A.WarnForDeprecation_warnForDeprecation0(t3, B.Deprecation_iXE, string$.x21globas, t6, null);
+            }
+            global = true;
+            break $label0$0;
+          }
+          endPosition = t2._string_scanner$_position;
+          t4 = t2._sourceFile;
+          t5 = flagStart.position;
+          t6 = new A._FileSpan(t4, t5, endPosition);
+          t6._FileSpan$3(t4, t5, endPosition);
+          _this.error$2(0, "Invalid flag name.", t6);
+        }
+        _this.whitespace$0();
+        flagStart = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      }
+      _this.expectStatementSeparator$1("variable declaration");
+      declaration = A.VariableDeclaration$0($name, value, t2.spanFrom$1(start), precedingComment, global, guarded, namespace);
+      if (global)
+        _this._stylesheet0$_globalVariables.putIfAbsent$2($name, new A.StylesheetParser_variableDeclarationWithoutNamespace_closure2(declaration));
+      return declaration;
+    },
+    variableDeclarationWithoutNamespace$0() {
+      return this.variableDeclarationWithoutNamespace$2(null, null);
+    },
+    _stylesheet0$_variableDeclarationOrStyleRule$0() {
+      var t1, t2, variableOrInterpolation, t3, _this = this;
+      if (_this.get$plainCss())
+        return _this._stylesheet0$_styleRule$0();
+      if (_this.get$indented() && _this.scanner.scanChar$1(92))
+        return _this._stylesheet0$_styleRule$0();
+      if (!_this.lookingAtIdentifier$0())
+        return _this._stylesheet0$_styleRule$0();
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      variableOrInterpolation = _this._stylesheet0$_variableDeclarationOrInterpolation$0();
+      if (variableOrInterpolation instanceof A.VariableDeclaration0)
+        t1 = variableOrInterpolation;
+      else {
+        t3 = new A.InterpolationBuffer0(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Object));
+        t3.addInterpolation$1(type$.Interpolation_2._as(variableOrInterpolation));
+        t2 = _this._stylesheet0$_styleRule$2(t3, new A._SpanScannerState(t1, t2));
+        t1 = t2;
+      }
+      return t1;
+    },
+    _stylesheet0$_declarationOrStyleRule$0() {
+      var t1, t2, declarationOrBuffer, _this = this;
+      if (_this.get$indented() && _this.scanner.scanChar$1(92))
+        return _this._stylesheet0$_styleRule$0();
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      declarationOrBuffer = _this._stylesheet0$_declarationOrBuffer$0();
+      return type$.Statement_2._is(declarationOrBuffer) ? declarationOrBuffer : _this._stylesheet0$_styleRule$2(type$.InterpolationBuffer_2._as(declarationOrBuffer), new A._SpanScannerState(t1, t2));
+    },
+    _stylesheet0$_declarationOrBuffer$0() {
+      var midBuffer, couldBeSelector, beforeDeclaration, value, additional, t2, t3, variableOrInterpolation, t4, t5, $name, postColonWhitespace, _0_0, exception, _1_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        nameBuffer = new A.InterpolationBuffer0(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Object)),
+        startsWithPunctuation = _this._stylesheet0$_lookingAtPotentialPropertyHack$0();
+      if (startsWithPunctuation) {
+        t2 = t1.readChar$0();
+        t3 = nameBuffer._interpolation_buffer0$_text;
+        t2 = A.Primitives_stringFromCharCode(t2);
+        t3._contents += t2;
+        t2 = _this.rawText$1(_this.get$whitespace());
+        t3 = nameBuffer._interpolation_buffer0$_text;
+        t3._contents += t2;
+      }
+      if (!_this._stylesheet0$_lookingAtInterpolatedIdentifier$0())
+        return nameBuffer;
+      variableOrInterpolation = startsWithPunctuation ? _this.interpolatedIdentifier$0() : _this._stylesheet0$_variableDeclarationOrInterpolation$0();
+      if (variableOrInterpolation instanceof A.VariableDeclaration0)
+        return variableOrInterpolation;
+      else
+        nameBuffer.addInterpolation$1(type$.Interpolation_2._as(variableOrInterpolation));
+      _this._stylesheet0$_isUseAllowed = false;
+      if (t1.matches$1("/*")) {
+        t2 = _this.rawText$1(_this.get$loudComment());
+        t3 = nameBuffer._interpolation_buffer0$_text;
+        t3._contents += t2;
+      }
+      midBuffer = new A.StringBuffer("");
+      t2 = midBuffer;
+      t3 = _this.get$whitespace();
+      t4 = _this.rawText$1(t3);
+      t2._contents += t4;
+      t4 = t1._string_scanner$_position;
+      if (!t1.scanChar$1(58)) {
+        if (midBuffer._contents.length !== 0) {
+          t1 = nameBuffer._interpolation_buffer0$_text;
+          t2 = A.Primitives_stringFromCharCode(32);
+          t1._contents += t2;
+        }
+        return nameBuffer;
+      }
+      t2 = midBuffer;
+      t5 = A.Primitives_stringFromCharCode(58);
+      t2._contents += t5;
+      $name = nameBuffer.interpolation$1(t1.spanFrom$2(start, new A._SpanScannerState(t1, t4)));
+      if (B.JSString_methods.startsWith$1($name.get$initialPlain(), "--")) {
+        t2 = _this._stylesheet0$_interpolatedDeclarationValue$0();
+        _this.expectStatementSeparator$1("custom property");
+        return A.Declaration$0($name, new A.StringExpression0(t2, false), t1.spanFrom$1(start));
+      }
+      if (t1.scanChar$1(58)) {
+        t1 = nameBuffer;
+        t2 = t1._interpolation_buffer0$_text;
+        t3 = A.S(midBuffer);
+        t2._contents += t3;
+        t3 = A.Primitives_stringFromCharCode(58);
+        t2._contents += t3;
+        return t1;
+      } else if (_this.get$indented() && _this._stylesheet0$_lookingAtInterpolatedIdentifier$0()) {
+        t1 = nameBuffer;
+        t2 = t1._interpolation_buffer0$_text;
+        t3 = A.S(midBuffer);
+        t2._contents += t3;
+        return t1;
+      }
+      postColonWhitespace = _this.rawText$1(t3);
+      _0_0 = _this._stylesheet0$_tryDeclarationChildren$2($name, start);
+      if (_0_0 != null)
+        return _0_0;
+      midBuffer._contents += postColonWhitespace;
+      couldBeSelector = postColonWhitespace.length === 0 && _this._stylesheet0$_lookingAtInterpolatedIdentifier$0();
+      beforeDeclaration = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      value = null;
+      try {
+        value = _this._stylesheet0$_expression$0();
+        if (_this.lookingAtChildren$0()) {
+          if (couldBeSelector)
+            _this.expectStatementSeparator$0();
+        } else if (!_this.atEndOfStatement$0())
+          _this.expectStatementSeparator$0();
+      } catch (exception) {
+        if (type$.FormatException._is(A.unwrapException(exception))) {
+          if (!couldBeSelector)
+            throw exception;
+          t1.set$state(beforeDeclaration);
+          additional = _this.almostAnyValue$0();
+          if (!_this.get$indented() && t1.peekChar$0() === 59)
+            throw exception;
+          t1 = nameBuffer._interpolation_buffer0$_text;
+          t2 = A.S(midBuffer);
+          t1._contents += t2;
+          nameBuffer.addInterpolation$1(additional);
+          return nameBuffer;
+        } else
+          throw exception;
+      }
+      _1_0 = _this._stylesheet0$_tryDeclarationChildren$3$value($name, start, value);
+      if (_1_0 != null)
+        return _1_0;
+      else {
+        _this.expectStatementSeparator$0();
+        return A.Declaration$0($name, value, t1.spanFrom$1(start));
+      }
+    },
+    _stylesheet0$_variableDeclarationOrInterpolation$0() {
+      var t1, start, identifier, t2, buffer, _this = this;
+      if (!_this.lookingAtIdentifier$0())
+        return _this.interpolatedIdentifier$0();
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      identifier = _this.identifier$0();
+      if (t1.matches$1(".$")) {
+        t1.readChar$0();
+        return _this.variableDeclarationWithoutNamespace$2(identifier, start);
+      } else {
+        t2 = new A.StringBuffer("");
+        buffer = new A.InterpolationBuffer0(t2, A._setArrayType([], type$.JSArray_Object));
+        t2._contents = "" + identifier;
+        if (_this._stylesheet0$_lookingAtInterpolatedIdentifierBody$0())
+          buffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+        return buffer.interpolation$1(t1.spanFrom$1(start));
+      }
+    },
+    _stylesheet0$_styleRule$2(buffer, start_) {
+      var t2, start, interpolation, wasInStyleRule, _this = this, t1 = {};
+      _this._stylesheet0$_isUseAllowed = false;
+      if (start_ == null) {
+        t2 = _this.scanner;
+        start = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      } else
+        start = start_;
+      interpolation = t1.interpolation = _this.styleRuleSelector$0();
+      if (buffer != null) {
+        buffer.addInterpolation$1(interpolation);
+        t2 = t1.interpolation = buffer.interpolation$1(_this.scanner.spanFrom$1(start));
+      } else
+        t2 = interpolation;
+      if (t2.contents.length === 0)
+        _this.scanner.error$1(0, 'expected "}".');
+      wasInStyleRule = _this._stylesheet0$_inStyleRule;
+      _this._stylesheet0$_inStyleRule = true;
+      return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser__styleRule_closure0(t1, _this, wasInStyleRule, start));
+    },
+    _stylesheet0$_styleRule$0() {
+      return this._stylesheet0$_styleRule$2(null, null);
+    },
+    _stylesheet0$_propertyOrVariableDeclaration$1$parseCustomProperties(parseCustomProperties) {
+      var t2, nameBuffer, t3, $name, variableOrInterpolation, _0_0, value, _1_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (_this._stylesheet0$_lookingAtPotentialPropertyHack$0()) {
+        t2 = new A.StringBuffer("");
+        nameBuffer = new A.InterpolationBuffer0(t2, A._setArrayType([], type$.JSArray_Object));
+        t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+        t2._contents += t3;
+        t3 = _this.rawText$1(_this.get$whitespace());
+        t2._contents += t3;
+        nameBuffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+        $name = nameBuffer.interpolation$1(t1.spanFrom$1(start));
+      } else if (!_this.get$plainCss()) {
+        variableOrInterpolation = _this._stylesheet0$_variableDeclarationOrInterpolation$0();
+        if (variableOrInterpolation instanceof A.VariableDeclaration0)
+          return variableOrInterpolation;
+        else
+          type$.Interpolation_2._as(variableOrInterpolation);
+        $name = variableOrInterpolation;
+      } else
+        $name = _this.interpolatedIdentifier$0();
+      _this.whitespace$0();
+      t1.expectChar$1(58);
+      _this.whitespace$0();
+      _0_0 = _this._stylesheet0$_tryDeclarationChildren$2($name, start);
+      if (_0_0 != null)
+        return _0_0;
+      value = _this._stylesheet0$_expression$0();
+      _1_0 = _this._stylesheet0$_tryDeclarationChildren$3$value($name, start, value);
+      if (_1_0 != null)
+        return _1_0;
+      else {
+        _this.expectStatementSeparator$0();
+        return A.Declaration$0($name, value, t1.spanFrom$1(start));
+      }
+    },
+    _stylesheet0$_tryDeclarationChildren$3$value($name, start, value) {
+      var _this = this;
+      if (!_this.lookingAtChildren$0())
+        return null;
+      if (_this.get$plainCss())
+        _this.scanner.error$1(0, string$.Nested);
+      return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_declarationChild(), start, new A.StylesheetParser__tryDeclarationChildren_closure0($name, value));
+    },
+    _stylesheet0$_tryDeclarationChildren$2($name, start) {
+      return this._stylesheet0$_tryDeclarationChildren$3$value($name, start, null);
+    },
+    _stylesheet0$_declarationChild$0() {
+      return this.scanner.peekChar$0() === 64 ? this._stylesheet0$_declarationAtRule$0() : this._stylesheet0$_propertyOrVariableDeclaration$1$parseCustomProperties(false);
+    },
+    atRule$2$root(child, root) {
+      var $name, wasUseAllowed, value, optional, url, namespace, configuration, span, _this = this,
+        _s9_ = "@use rule",
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$2$name(64, "@-rule");
+      $name = _this.interpolatedIdentifier$0();
+      _this.whitespace$0();
+      wasUseAllowed = _this._stylesheet0$_isUseAllowed;
+      _this._stylesheet0$_isUseAllowed = false;
+      switch ($name.get$asPlain()) {
+        case "at-root":
+          return _this._stylesheet0$_atRootRule$1(start);
+        case "content":
+          return _this._stylesheet0$_contentRule$1(start);
+        case "debug":
+          return _this._stylesheet0$_debugRule$1(start);
+        case "each":
+          return _this._stylesheet0$_eachRule$2(start, child);
+        case "else":
+          return _this._stylesheet0$_disallowedAtRule$1(start);
+        case "error":
+          return _this._stylesheet0$_errorRule$1(start);
+        case "extend":
+          if (!_this._stylesheet0$_inStyleRule && !_this._stylesheet0$_inMixin && !_this._stylesheet0$_inContentBlock)
+            _this.error$2(0, string$.x40exten, t1.spanFrom$1(start));
+          value = _this.almostAnyValue$0();
+          optional = t1.scanChar$1(33);
+          if (optional)
+            _this.expectIdentifier$1("optional");
+          _this.expectStatementSeparator$1("@extend rule");
+          return new A.ExtendRule0(value, optional, t1.spanFrom$1(start));
+        case "for":
+          return _this._stylesheet0$_forRule$2(start, child);
+        case "forward":
+          _this._stylesheet0$_isUseAllowed = wasUseAllowed;
+          if (!root)
+            _this._stylesheet0$_disallowedAtRule$1(start);
+          return _this._stylesheet0$_forwardRule$1(start);
+        case "function":
+          return _this._stylesheet0$_functionRule$1(start);
+        case "if":
+          return _this._stylesheet0$_ifRule$2(start, child);
+        case "import":
+          return _this._stylesheet0$_importRule$1(start);
+        case "include":
+          return _this._stylesheet0$_includeRule$1(start);
+        case "media":
+          return _this.mediaRule$1(start);
+        case "mixin":
+          return _this._stylesheet0$_mixinRule$1(start);
+        case "-moz-document":
+          return _this.mozDocumentRule$2(start, $name);
+        case "return":
+          return _this._stylesheet0$_disallowedAtRule$1(start);
+        case "supports":
+          return _this.supportsRule$1(start);
+        case "use":
+          _this._stylesheet0$_isUseAllowed = wasUseAllowed;
+          if (!root)
+            _this._stylesheet0$_disallowedAtRule$1(start);
+          url = _this._stylesheet0$_urlString$0();
+          _this.whitespace$0();
+          namespace = _this._stylesheet0$_useNamespace$2(url, start);
+          _this.whitespace$0();
+          configuration = _this._stylesheet0$_configuration$0();
+          _this.expectStatementSeparator$1(_s9_);
+          span = t1.spanFrom$1(start);
+          if (!_this._stylesheet0$_isUseAllowed)
+            _this.error$2(0, string$.x40use_r, span);
+          _this.expectStatementSeparator$1(_s9_);
+          t1 = new A.UseRule0(url, namespace, configuration == null ? B.List_empty21 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable_2), span);
+          t1.UseRule$4$configuration0(url, namespace, span, configuration);
+          return t1;
+        case "warn":
+          return _this._stylesheet0$_warnRule$1(start);
+        case "while":
+          return _this._stylesheet0$_whileRule$2(start, child);
+        default:
+          return _this.unknownAtRule$2(start, $name);
+      }
+    },
+    _stylesheet0$_declarationAtRule$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        _0_0 = _this._stylesheet0$_plainAtRuleName$0();
+      $label0$0: {
+        if ("content" === _0_0) {
+          t1 = _this._stylesheet0$_contentRule$1(start);
+          break $label0$0;
+        }
+        if ("debug" === _0_0) {
+          t1 = _this._stylesheet0$_debugRule$1(start);
+          break $label0$0;
+        }
+        if ("each" === _0_0) {
+          t1 = _this._stylesheet0$_eachRule$2(start, _this.get$_stylesheet0$_declarationChild());
+          break $label0$0;
+        }
+        if ("else" === _0_0)
+          _this._stylesheet0$_disallowedAtRule$1(start);
+        if ("error" === _0_0) {
+          t1 = _this._stylesheet0$_errorRule$1(start);
+          break $label0$0;
+        }
+        if ("for" === _0_0) {
+          t1 = _this._stylesheet0$_forRule$2(start, _this.get$_stylesheet0$_declarationChild());
+          break $label0$0;
+        }
+        if ("if" === _0_0) {
+          t1 = _this._stylesheet0$_ifRule$2(start, _this.get$_stylesheet0$_declarationChild());
+          break $label0$0;
+        }
+        if ("include" === _0_0) {
+          t1 = _this._stylesheet0$_includeRule$1(start);
+          break $label0$0;
+        }
+        if ("warn" === _0_0) {
+          t1 = _this._stylesheet0$_warnRule$1(start);
+          break $label0$0;
+        }
+        if ("while" === _0_0) {
+          t1 = _this._stylesheet0$_whileRule$2(start, _this.get$_stylesheet0$_declarationChild());
+          break $label0$0;
+        }
+        t1 = _this._stylesheet0$_disallowedAtRule$1(start);
+      }
+      return t1;
+    },
+    _stylesheet0$_functionChild$0() {
+      var state, variableDeclarationError, stackTrace, statement, t2, namespace, exception, t3, start, _0_0, value, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$0() !== 64) {
+        t2 = t1._string_scanner$_position;
+        state = new A._SpanScannerState(t1, t2);
+        try {
+          namespace = _this.identifier$0();
+          t1.expectChar$1(46);
+          t2 = _this.variableDeclarationWithoutNamespace$2(namespace, new A._SpanScannerState(t1, t2));
+          return t2;
+        } catch (exception) {
+          t2 = A.unwrapException(exception);
+          t3 = type$.SourceSpanFormatException;
+          if (t3._is(t2)) {
+            variableDeclarationError = t2;
+            stackTrace = A.getTraceFromException(exception);
+            t1.set$state(state);
+            statement = null;
+            try {
+              statement = _this._stylesheet0$_declarationOrStyleRule$0();
+            } catch (exception) {
+              if (t3._is(A.unwrapException(exception)))
+                throw A.wrapException(variableDeclarationError);
+              else
+                throw exception;
+            }
+            t2 = statement instanceof A.StyleRule0 ? "style rules" : "declarations";
+            _this.error$3(0, "@function rules may not contain " + t2 + ".", J.get$span$z(statement), stackTrace);
+          } else
+            throw exception;
+        }
+      }
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _0_0 = _this._stylesheet0$_plainAtRuleName$0();
+      $label0$0: {
+        if ("debug" === _0_0) {
+          t1 = _this._stylesheet0$_debugRule$1(start);
+          break $label0$0;
+        }
+        if ("each" === _0_0) {
+          t1 = _this._stylesheet0$_eachRule$2(start, _this.get$_stylesheet0$_functionChild());
+          break $label0$0;
+        }
+        if ("else" === _0_0)
+          _this._stylesheet0$_disallowedAtRule$1(start);
+        if ("error" === _0_0) {
+          t1 = _this._stylesheet0$_errorRule$1(start);
+          break $label0$0;
+        }
+        if ("for" === _0_0) {
+          t1 = _this._stylesheet0$_forRule$2(start, _this.get$_stylesheet0$_functionChild());
+          break $label0$0;
+        }
+        if ("if" === _0_0) {
+          t1 = _this._stylesheet0$_ifRule$2(start, _this.get$_stylesheet0$_functionChild());
+          break $label0$0;
+        }
+        if ("return" === _0_0) {
+          value = _this._stylesheet0$_expression$0();
+          _this.expectStatementSeparator$1("@return rule");
+          t1 = new A.ReturnRule0(value, t1.spanFrom$1(start));
+          break $label0$0;
+        }
+        if ("warn" === _0_0) {
+          t1 = _this._stylesheet0$_warnRule$1(start);
+          break $label0$0;
+        }
+        if ("while" === _0_0) {
+          t1 = _this._stylesheet0$_whileRule$2(start, _this.get$_stylesheet0$_functionChild());
+          break $label0$0;
+        }
+        t1 = _this._stylesheet0$_disallowedAtRule$1(start);
+      }
+      return t1;
+    },
+    _stylesheet0$_plainAtRuleName$0() {
+      this.scanner.expectChar$2$name(64, "@-rule");
+      var $name = this.identifier$0();
+      this.whitespace$0();
+      return $name;
+    },
+    _stylesheet0$_atRootRule$1(start) {
+      var t2, t3, t4, buffer, t5, query, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$0() === 40) {
+        t2 = t1._string_scanner$_position;
+        t3 = new A.StringBuffer("");
+        t4 = A._setArrayType([], type$.JSArray_Object);
+        buffer = new A.InterpolationBuffer0(t3, t4);
+        t1.expectChar$1(40);
+        t5 = A.Primitives_stringFromCharCode(40);
+        t3._contents += t5;
+        _this.whitespace$0();
+        t5 = _this._stylesheet0$_expression$0();
+        buffer._interpolation_buffer0$_flushText$0();
+        t4.push(t5);
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t5 = A.Primitives_stringFromCharCode(58);
+          t3._contents += t5;
+          t5 = A.Primitives_stringFromCharCode(32);
+          t3._contents += t5;
+          t5 = _this._stylesheet0$_expression$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t4.push(t5);
+        }
+        t1.expectChar$1(41);
+        _this.whitespace$0();
+        t4 = A.Primitives_stringFromCharCode(41);
+        t3._contents += t4;
+        query = buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+        _this.whitespace$0();
+        return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser__atRootRule_closure1(query));
+      } else if (_this.lookingAtChildren$0())
+        return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser__atRootRule_closure2());
+      else
+        return A.AtRootRule$0(A._setArrayType([_this._stylesheet0$_styleRule$0()], type$.JSArray_Statement_2), t1.spanFrom$1(start), null);
+    },
+    _stylesheet0$_contentRule$1(start) {
+      var t1, $arguments, t2, t3, _this = this;
+      if (!_this._stylesheet0$_inMixin)
+        _this.error$2(0, string$.x40conte, _this.scanner.spanFrom$1(start));
+      _this.whitespace$0();
+      t1 = _this.scanner;
+      if (t1.peekChar$0() === 40)
+        $arguments = _this._stylesheet0$_argumentInvocation$1$mixin(true);
+      else {
+        t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = A.ArgumentInvocation$empty0(A._FileSpan$(t2.file, t3, t3));
+      }
+      _this.expectStatementSeparator$1("@content rule");
+      return new A.ContentRule0($arguments, t1.spanFrom$1(start));
+    },
+    _stylesheet0$_debugRule$1(start) {
+      var value = this._stylesheet0$_expression$0();
+      this.expectStatementSeparator$1("@debug rule");
+      return new A.DebugRule0(value, this.scanner.spanFrom$1(start));
+    },
+    _stylesheet0$_eachRule$2(start, child) {
+      var variables, t1, _this = this,
+        wasInControlDirective = _this._stylesheet0$_inControlDirective;
+      _this._stylesheet0$_inControlDirective = true;
+      variables = A._setArrayType([_this.variableName$0()], type$.JSArray_String);
+      _this.whitespace$0();
+      for (t1 = _this.scanner; t1.scanChar$1(44);) {
+        _this.whitespace$0();
+        t1.expectChar$1(36);
+        variables.push(_this.identifier$1$normalize(true));
+        _this.whitespace$0();
+      }
+      _this.expectIdentifier$1("in");
+      _this.whitespace$0();
+      return _this._stylesheet0$_withChildren$3(child, start, new A.StylesheetParser__eachRule_closure0(_this, wasInControlDirective, variables, _this._stylesheet0$_expression$0()));
+    },
+    _stylesheet0$_errorRule$1(start) {
+      var value = this._stylesheet0$_expression$0();
+      this.expectStatementSeparator$1("@error rule");
+      return new A.ErrorRule0(value, this.scanner.spanFrom$1(start));
+    },
+    _stylesheet0$_functionRule$1(start) {
+      var t1, t2, $name, $arguments, _0_0, _this = this,
+        precedingComment = _this.lastSilentComment;
+      _this.lastSilentComment = null;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      $name = _this.identifier$0();
+      if (B.JSString_methods.startsWith$1($name, "--"))
+        A.WarnForDeprecation_warnForDeprecation0(_this.logger, B.Deprecation_qBS, string$.Sass__fm, t1.spanFrom$1(new A._SpanScannerState(t1, t2)), null);
+      _this.whitespace$0();
+      $arguments = _this._stylesheet0$_argumentDeclaration$0();
+      if (_this._stylesheet0$_inMixin || _this._stylesheet0$_inContentBlock)
+        _this.error$2(0, string$.Mixinscf, t1.spanFrom$1(start));
+      else if (_this._stylesheet0$_inControlDirective)
+        _this.error$2(0, string$.Functi, t1.spanFrom$1(start));
+      _0_0 = A.unvendor0($name);
+      if ("calc" === _0_0 || "element" === _0_0 || "expression" === _0_0 || "url" === _0_0 || "and" === _0_0 || "or" === _0_0 || "not" === _0_0 || "clamp" === _0_0)
+        _this.error$2(0, "Invalid function name.", t1.spanFrom$1(start));
+      _this.whitespace$0();
+      return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_functionChild(), start, new A.StylesheetParser__functionRule_closure0($name, $arguments, precedingComment));
+    },
+    _stylesheet0$_forRule$2(start, child) {
+      var variable, from, _this = this, t1 = {},
+        wasInControlDirective = _this._stylesheet0$_inControlDirective;
+      _this._stylesheet0$_inControlDirective = true;
+      variable = _this.variableName$0();
+      _this.whitespace$0();
+      _this.expectIdentifier$1("from");
+      _this.whitespace$0();
+      t1.exclusive = null;
+      from = _this._stylesheet0$_expression$1$until(new A.StylesheetParser__forRule_closure1(t1, _this));
+      if (t1.exclusive == null)
+        _this.scanner.error$1(0, 'Expected "to" or "through".');
+      _this.whitespace$0();
+      return _this._stylesheet0$_withChildren$3(child, start, new A.StylesheetParser__forRule_closure2(t1, _this, wasInControlDirective, variable, from, _this._stylesheet0$_expression$0()));
+    },
+    _stylesheet0$_forwardRule$1(start) {
+      var prefix, _0_0, shownMixinsAndFunctions, shownVariables, hiddenVariables, hiddenMixinsAndFunctions, _1_0, configuration, span, t1, t2, t3, t4, _this = this, _null = null,
+        url = _this._stylesheet0$_urlString$0();
+      _this.whitespace$0();
+      if (_this.scanIdentifier$1("as")) {
+        _this.whitespace$0();
+        prefix = _this.identifier$1$normalize(true);
+        _this.scanner.expectChar$1(42);
+        _this.whitespace$0();
+      } else
+        prefix = _null;
+      if (_this.scanIdentifier$1("show")) {
+        _0_0 = _this._stylesheet0$_memberList$0();
+        shownMixinsAndFunctions = _0_0._0;
+        shownVariables = _0_0._1;
+        hiddenVariables = _null;
+        hiddenMixinsAndFunctions = hiddenVariables;
+      } else {
+        if (_this.scanIdentifier$1("hide")) {
+          _1_0 = _this._stylesheet0$_memberList$0();
+          hiddenMixinsAndFunctions = _1_0._0;
+          hiddenVariables = _1_0._1;
+        } else {
+          hiddenVariables = _null;
+          hiddenMixinsAndFunctions = hiddenVariables;
+        }
+        shownVariables = _null;
+        shownMixinsAndFunctions = shownVariables;
+      }
+      configuration = _this._stylesheet0$_configuration$1$allowGuarded(true);
+      _this.expectStatementSeparator$1("@forward rule");
+      span = _this.scanner.spanFrom$1(start);
+      if (!_this._stylesheet0$_isUseAllowed)
+        _this.error$2(0, string$.x40forwa, span);
+      if (shownMixinsAndFunctions != null) {
+        shownVariables.toString;
+        t1 = type$.String;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(shownMixinsAndFunctions, t1);
+        t3 = type$.UnmodifiableSetView_String;
+        t1 = A.LinkedHashSet_LinkedHashSet$of(shownVariables, t1);
+        t4 = configuration == null ? B.List_empty21 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable_2);
+        return new A.ForwardRule0(url, new A.UnmodifiableSetView0(t2, t3), new A.UnmodifiableSetView0(t1, t3), _null, _null, prefix, t4, span);
+      } else if (hiddenMixinsAndFunctions != null) {
+        hiddenVariables.toString;
+        t1 = type$.String;
+        t2 = A.LinkedHashSet_LinkedHashSet$of(hiddenMixinsAndFunctions, t1);
+        t3 = type$.UnmodifiableSetView_String;
+        t1 = A.LinkedHashSet_LinkedHashSet$of(hiddenVariables, t1);
+        t4 = configuration == null ? B.List_empty21 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable_2);
+        return new A.ForwardRule0(url, _null, _null, new A.UnmodifiableSetView0(t2, t3), new A.UnmodifiableSetView0(t1, t3), prefix, t4, span);
+      } else
+        return new A.ForwardRule0(url, _null, _null, _null, _null, prefix, configuration == null ? B.List_empty21 : A.List_List$unmodifiable(configuration, type$.ConfiguredVariable_2), span);
+    },
+    _stylesheet0$_memberList$0() {
+      var _this = this,
+        t1 = type$.String,
+        identifiers = A.LinkedHashSet_LinkedHashSet$_empty(t1),
+        variables = A.LinkedHashSet_LinkedHashSet$_empty(t1);
+      t1 = _this.scanner;
+      do {
+        _this.whitespace$0();
+        _this.withErrorMessage$2(string$.Expect, new A.StylesheetParser__memberList_closure0(_this, variables, identifiers));
+        _this.whitespace$0();
+      } while (t1.scanChar$1(44));
+      return new A._Record_2(identifiers, variables);
+    },
+    _stylesheet0$_ifRule$2(start, child) {
+      var condition, children, clauses, lastClause, span, _this = this,
+        ifIndentation = _this.get$currentIndentation(),
+        wasInControlDirective = _this._stylesheet0$_inControlDirective;
+      _this._stylesheet0$_inControlDirective = true;
+      condition = _this._stylesheet0$_expression$0();
+      children = _this.children$1(0, child);
+      _this.whitespaceWithoutComments$0();
+      clauses = A._setArrayType([A.IfClause$0(condition, children)], type$.JSArray_IfClause_2);
+      while (true) {
+        if (!_this.scanElse$1(ifIndentation)) {
+          lastClause = null;
+          break;
+        }
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1("if")) {
+          _this.whitespace$0();
+          clauses.push(A.IfClause$0(_this._stylesheet0$_expression$0(), _this.children$1(0, child)));
+        } else {
+          lastClause = A.ElseClause$0(_this.children$1(0, child));
+          break;
+        }
+      }
+      _this._stylesheet0$_inControlDirective = wasInControlDirective;
+      span = _this.scanner.spanFrom$1(start);
+      _this.whitespaceWithoutComments$0();
+      return new A.IfRule0(A.List_List$unmodifiable(clauses, type$.IfClause_2), lastClause, span);
+    },
+    _stylesheet0$_importRule$1(start) {
+      var argument, t3, _this = this,
+        imports = A._setArrayType([], type$.JSArray_Import_2),
+        t1 = _this.scanner,
+        t2 = _this.logger;
+      do {
+        _this.whitespace$0();
+        argument = _this.importArgument$0();
+        t3 = argument instanceof A.DynamicImport0;
+        if (t3)
+          A.WarnForDeprecation_warnForDeprecation0(t2, B.Deprecation_qd9, string$.Sass__i, argument.span, null);
+        if ((_this._stylesheet0$_inControlDirective || _this._stylesheet0$_inMixin) && t3)
+          _this._stylesheet0$_disallowedAtRule$1(start);
+        imports.push(argument);
+        _this.whitespace$0();
+      } while (t1.scanChar$1(44));
+      _this.expectStatementSeparator$1("@import rule");
+      t1 = t1.spanFrom$1(start);
+      return new A.ImportRule0(A.List_List$unmodifiable(imports, type$.Import_2), t1);
+    },
+    importArgument$0() {
+      var url, urlSpan, innerError, stackTrace, modifiers, t2, exception, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        _0_0 = t1.peekChar$0();
+      if (117 === _0_0 || 85 === _0_0) {
+        url = _this.dynamicUrl$0();
+        _this.whitespace$0();
+        modifiers = _this.tryImportModifiers$0();
+        return new A.StaticImport0(A.Interpolation$0(A._setArrayType([url], type$.JSArray_Object), t1.spanFrom$1(start)), modifiers, t1.spanFrom$1(start));
+      }
+      url = _this.string$0();
+      urlSpan = t1.spanFrom$1(start);
+      _this.whitespace$0();
+      modifiers = _this.tryImportModifiers$0();
+      if (_this.isPlainImportUrl$1(url) || modifiers != null) {
+        t2 = urlSpan;
+        return new A.StaticImport0(A.Interpolation$0(A._setArrayType([A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t2.file._decodedChars, t2._file$_start, t2._end), 0, null)], type$.JSArray_Object), urlSpan), modifiers, t1.spanFrom$1(start));
+      } else
+        try {
+          t1 = _this.parseImportUrl$1(url);
+          return new A.DynamicImport0(t1, urlSpan);
+        } catch (exception) {
+          t1 = A.unwrapException(exception);
+          if (type$.FormatException._is(t1)) {
+            innerError = t1;
+            stackTrace = A.getTraceFromException(exception);
+            _this.error$3(0, "Invalid URL: " + J.get$message$x(innerError), urlSpan, stackTrace);
+          } else
+            throw exception;
+        }
+    },
+    parseImportUrl$1(url) {
+      var t1 = $.$get$windows();
+      if (t1.style.rootLength$1(url) > 0 && !$.$get$url().style.isRootRelative$1(url))
+        return t1.toUri$1(url).toString$0(0);
+      A.Uri_parse(url);
+      return url;
+    },
+    isPlainImportUrl$1(url) {
+      var _0_0, t1;
+      if (url.length < 5)
+        return false;
+      if (B.JSString_methods.endsWith$1(url, ".css"))
+        return true;
+      _0_0 = url.charCodeAt(0);
+      $label0$0: {
+        if (47 === _0_0) {
+          t1 = url.charCodeAt(1) === 47;
+          break $label0$0;
+        }
+        if (104 === _0_0) {
+          t1 = B.JSString_methods.startsWith$1(url, "http://") || B.JSString_methods.startsWith$1(url, "https://");
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    tryImportModifiers$0() {
+      var t1, start, t2, t3, buffer, t4, identifier, $name, query, t5, endPosition, result, _this = this;
+      if (!_this._stylesheet0$_lookingAtInterpolatedIdentifier$0() && _this.scanner.peekChar$0() !== 40)
+        return null;
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t2 = new A.StringBuffer("");
+      t3 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer0(t2, t3);
+      for (; true;)
+        if (_this._stylesheet0$_lookingAtInterpolatedIdentifier$0()) {
+          if (!(t3.length === 0 && t2._contents.length === 0)) {
+            t4 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t4;
+          }
+          identifier = _this.interpolatedIdentifier$0();
+          buffer.addInterpolation$1(identifier);
+          t4 = identifier.get$asPlain();
+          $name = t4 == null ? null : t4.toLowerCase();
+          if ($name !== "and" && t1.scanChar$1(40)) {
+            if ($name === "supports") {
+              query = _this._stylesheet0$_importSupportsQuery$0();
+              t4 = !(query instanceof A.SupportsDeclaration0);
+              if (t4) {
+                t5 = A.Primitives_stringFromCharCode(40);
+                t2._contents += t5;
+              }
+              buffer._interpolation_buffer0$_flushText$0();
+              t3.push(new A.SupportsExpression0(query));
+              if (t4) {
+                t4 = A.Primitives_stringFromCharCode(41);
+                t2._contents += t4;
+              }
+            } else {
+              t4 = A.Primitives_stringFromCharCode(40);
+              t2._contents += t4;
+              buffer.addInterpolation$1(_this._stylesheet0$_interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(true, true));
+              t4 = A.Primitives_stringFromCharCode(41);
+              t2._contents += t4;
+            }
+            t1.expectChar$1(41);
+            _this.whitespace$0();
+          } else {
+            _this.whitespace$0();
+            if (t1.scanChar$1(44)) {
+              t2._contents += ", ";
+              buffer.addInterpolation$1(_this._stylesheet0$_mediaQueryList$0());
+              endPosition = t1._string_scanner$_position;
+              t4 = t1._sourceFile;
+              t5 = start.position;
+              t1 = new A._FileSpan(t4, t5, endPosition);
+              t1._FileSpan$3(t4, t5, endPosition);
+              t5 = type$.Object;
+              t4 = A.List_List$of(t3, true, t5);
+              t3 = t2._contents;
+              if (t3.length !== 0)
+                t4.push(t3.charCodeAt(0) == 0 ? t3 : t3);
+              result = A.List_List$from(t4, false, t5);
+              result.fixed$length = Array;
+              result.immutable$list = Array;
+              t2 = new A.Interpolation0(result, t1);
+              t2.Interpolation$20(t4, t1);
+              return t2;
+            }
+          }
+        } else if (t1.peekChar$0() === 40) {
+          if (!(t3.length === 0 && t2._contents.length === 0)) {
+            t4 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t4;
+          }
+          buffer.addInterpolation$1(_this._stylesheet0$_mediaQueryList$0());
+          endPosition = t1._string_scanner$_position;
+          t1 = t1._sourceFile;
+          t4 = start.position;
+          t5 = new A._FileSpan(t1, t4, endPosition);
+          t5._FileSpan$3(t1, t4, endPosition);
+          t4 = type$.Object;
+          t3 = A.List_List$of(t3, true, t4);
+          t1 = t2._contents;
+          if (t1.length !== 0)
+            t3.push(t1.charCodeAt(0) == 0 ? t1 : t1);
+          result = A.List_List$from(t3, false, t4);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t1 = new A.Interpolation0(result, t5);
+          t1.Interpolation$20(t3, t5);
+          return t1;
+        } else {
+          endPosition = t1._string_scanner$_position;
+          t1 = t1._sourceFile;
+          t4 = start.position;
+          t5 = new A._FileSpan(t1, t4, endPosition);
+          t5._FileSpan$3(t1, t4, endPosition);
+          t4 = type$.Object;
+          t3 = A.List_List$of(t3, true, t4);
+          t1 = t2._contents;
+          if (t1.length !== 0)
+            t3.push(t1.charCodeAt(0) == 0 ? t1 : t1);
+          result = A.List_List$from(t3, false, t4);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t1 = new A.Interpolation0(result, t5);
+          t1.Interpolation$20(t3, t5);
+          return t1;
+        }
+    },
+    _stylesheet0$_importSupportsQuery$0() {
+      var t1, t2, _0_0, $name, _this = this;
+      if (_this.scanIdentifier$1("not")) {
+        _this.whitespace$0();
+        t1 = _this.scanner;
+        t2 = t1._string_scanner$_position;
+        return new A.SupportsNegation0(_this._stylesheet0$_supportsConditionInParens$0(), t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      } else {
+        t1 = _this.scanner;
+        if (t1.peekChar$0() === 40)
+          return _this._stylesheet0$_supportsCondition$0();
+        else {
+          _0_0 = _this._stylesheet0$_tryImportSupportsFunction$0();
+          if (_0_0 != null)
+            return _0_0;
+          t2 = t1._string_scanner$_position;
+          $name = _this._stylesheet0$_expression$0();
+          t1.expectChar$1(58);
+          return _this._stylesheet0$_supportsDeclarationValue$2($name, new A._SpanScannerState(t1, t2));
+        }
+      }
+    },
+    _stylesheet0$_tryImportSupportsFunction$0() {
+      var t1, start, $name, value, _this = this;
+      if (!_this._stylesheet0$_lookingAtInterpolatedIdentifier$0())
+        return null;
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      $name = _this.interpolatedIdentifier$0();
+      if (!t1.scanChar$1(40)) {
+        t1.set$state(start);
+        return null;
+      }
+      value = _this._stylesheet0$_interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(true, true);
+      t1.expectChar$1(41);
+      return new A.SupportsFunction0($name, value, t1.spanFrom$1(start));
+    },
+    _stylesheet0$_includeRule$1(start) {
+      var name0, namespace, $arguments, t2, t3, contentArguments, contentArguments_, wasInContentBlock, $content, span, _this = this, _null = null,
+        $name = _this.identifier$0(),
+        t1 = _this.scanner;
+      if (t1.scanChar$1(46)) {
+        name0 = _this._stylesheet0$_publicIdentifier$0();
+        namespace = $name;
+        $name = name0;
+      } else
+        namespace = _null;
+      _this.whitespace$0();
+      if (t1.peekChar$0() === 40)
+        $arguments = _this._stylesheet0$_argumentInvocation$1$mixin(true);
+      else {
+        t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = A.ArgumentInvocation$empty0(A._FileSpan$(t2.file, t3, t3));
+      }
+      _this.whitespace$0();
+      if (_this.scanIdentifier$1("using")) {
+        _this.whitespace$0();
+        contentArguments = _this._stylesheet0$_argumentDeclaration$0();
+        _this.whitespace$0();
+      } else
+        contentArguments = _null;
+      t2 = contentArguments == null;
+      if (!t2 || _this.lookingAtChildren$0()) {
+        if (t2) {
+          t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+          t3 = t2.offset;
+          contentArguments_ = new A.ArgumentDeclaration0(B.List_empty22, _null, A._FileSpan$(t2.file, t3, t3));
+        } else
+          contentArguments_ = contentArguments;
+        wasInContentBlock = _this._stylesheet0$_inContentBlock;
+        _this._stylesheet0$_inContentBlock = true;
+        $content = _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser__includeRule_closure0(contentArguments_));
+        _this._stylesheet0$_inContentBlock = wasInContentBlock;
+      } else {
+        _this.expectStatementSeparator$0();
+        $content = _null;
+      }
+      t1 = t1.spanFrom$2(start, start);
+      t2 = $content == null ? $arguments : $content;
+      span = t1.expand$1(0, t2.get$span(t2));
+      return new A.IncludeRule0(namespace, A.stringReplaceAllUnchecked($name, "_", "-"), $name, $arguments, $content, span);
+    },
+    mediaRule$1(start) {
+      return this._stylesheet0$_withChildren$3(this.get$_stylesheet0$_statement(), start, new A.StylesheetParser_mediaRule_closure0(this._stylesheet0$_mediaQueryList$0()));
+    },
+    _stylesheet0$_mixinRule$1(start) {
+      var t1, t2, $name, $arguments, t3, _this = this,
+        precedingComment = _this.lastSilentComment;
+      _this.lastSilentComment = null;
+      t1 = _this.scanner;
+      t2 = t1._string_scanner$_position;
+      $name = _this.identifier$0();
+      if (B.JSString_methods.startsWith$1($name, "--"))
+        A.WarnForDeprecation_warnForDeprecation0(_this.logger, B.Deprecation_qBS, string$.Sass__m, t1.spanFrom$1(new A._SpanScannerState(t1, t2)), null);
+      _this.whitespace$0();
+      if (t1.peekChar$0() === 40)
+        $arguments = _this._stylesheet0$_argumentDeclaration$0();
+      else {
+        t2 = A.FileLocation$_(t1._sourceFile, t1._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = new A.ArgumentDeclaration0(B.List_empty22, null, A._FileSpan$(t2.file, t3, t3));
+      }
+      if (_this._stylesheet0$_inMixin || _this._stylesheet0$_inContentBlock)
+        _this.error$2(0, string$.Mixinscm, t1.spanFrom$1(start));
+      else if (_this._stylesheet0$_inControlDirective)
+        _this.error$2(0, string$.Mixinsb, t1.spanFrom$1(start));
+      _this.whitespace$0();
+      _this._stylesheet0$_inMixin = true;
+      return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser__mixinRule_closure0(_this, $name, $arguments, precedingComment));
+    },
+    mozDocumentRule$2(start, $name) {
+      var t5, t6, identifier, _0_0, argument, trailing, endPosition, t7, t8, start0, end, _this = this, _box_0 = {},
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        t4 = A._setArrayType([], type$.JSArray_Object),
+        buffer = new A.InterpolationBuffer0(t3, t4);
+      _box_0.needsDeprecationWarning = false;
+      for (t5 = _this.get$whitespace(); true;) {
+        if (t1.peekChar$0() === 35) {
+          t6 = _this.singleInterpolation$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t4.push(t6);
+          _box_0.needsDeprecationWarning = true;
+        } else {
+          t6 = t1._string_scanner$_position;
+          identifier = _this.identifier$0();
+          $label0$0: {
+            if ("url" === identifier || "url-prefix" === identifier || "domain" === identifier) {
+              _0_0 = _this._stylesheet0$_tryUrlContents$2$name(new A._SpanScannerState(t1, t6), identifier);
+              if (_0_0 != null)
+                buffer.addInterpolation$1(_0_0);
+              else {
+                t1.expectChar$1(40);
+                _this.whitespace$0();
+                argument = _this.interpolatedString$0();
+                t1.expectChar$1(41);
+                t3._contents += identifier;
+                t6 = A.Primitives_stringFromCharCode(40);
+                t3._contents += t6;
+                buffer.addInterpolation$1(argument.asInterpolation$0());
+                t6 = A.Primitives_stringFromCharCode(41);
+                t3._contents += t6;
+              }
+              t6 = t3._contents;
+              trailing = t6.charCodeAt(0) == 0 ? t6 : t6;
+              if (!B.JSString_methods.endsWith$1(trailing, "url-prefix()") && !B.JSString_methods.endsWith$1(trailing, "url-prefix('')") && !B.JSString_methods.endsWith$1(trailing, 'url-prefix("")'))
+                _box_0.needsDeprecationWarning = true;
+              break $label0$0;
+            }
+            if ("regexp" === identifier) {
+              t3._contents += "regexp(";
+              t1.expectChar$1(40);
+              buffer.addInterpolation$1(_this.interpolatedString$0().asInterpolation$0());
+              t1.expectChar$1(41);
+              t6 = A.Primitives_stringFromCharCode(41);
+              t3._contents += t6;
+              _box_0.needsDeprecationWarning = true;
+              break $label0$0;
+            }
+            endPosition = t1._string_scanner$_position;
+            t7 = t1._sourceFile;
+            t8 = new A._FileSpan(t7, t6, endPosition);
+            t8._FileSpan$3(t7, t6, endPosition);
+            _this.error$2(0, "Invalid function name.", t8);
+          }
+        }
+        _this.whitespace$0();
+        if (!t1.scanChar$1(44))
+          break;
+        t6 = A.Primitives_stringFromCharCode(44);
+        t3._contents += t6;
+        start0 = t1._string_scanner$_position;
+        t5.call$0();
+        end = t1._string_scanner$_position;
+        t3._contents += B.JSString_methods.substring$2(t1.string, start0, end);
+      }
+      return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser_mozDocumentRule_closure0(_box_0, _this, $name, buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)))));
+    },
+    supportsRule$1(start) {
+      var _this = this,
+        condition = _this._stylesheet0$_supportsCondition$0();
+      _this.whitespace$0();
+      return _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser_supportsRule_closure0(condition));
+    },
+    _stylesheet0$_useNamespace$2(url, start) {
+      var namespace, basename, dot, t1, exception, _this = this;
+      if (_this.scanIdentifier$1("as")) {
+        _this.whitespace$0();
+        return _this.scanner.scanChar$1(42) ? null : _this.identifier$0();
+      }
+      basename = url.get$pathSegments().length === 0 ? "" : B.JSArray_methods.get$last(url.get$pathSegments());
+      dot = B.JSString_methods.indexOf$1(basename, ".");
+      t1 = B.JSString_methods.startsWith$1(basename, "_") ? 1 : 0;
+      namespace = B.JSString_methods.substring$2(basename, t1, dot === -1 ? basename.length : dot);
+      try {
+        t1 = A.SpanScanner$(namespace, null);
+        t1 = new A.Parser1(t1, _this.logger, null)._parser0$_parseIdentifier$0();
+        return t1;
+      } catch (exception) {
+        if (type$.SassFormatException_2._is(A.unwrapException(exception)))
+          _this.error$2(0, 'The default namespace "' + A.S(namespace) + string$.x22x20is_n, _this.scanner.spanFrom$1(start));
+        else
+          throw exception;
+      }
+    },
+    _stylesheet0$_configuration$1$allowGuarded(allowGuarded) {
+      var variableNames, configuration, t1, t2, $name, expression, t3, guarded, endPosition, t4, t5, span, _this = this;
+      if (!_this.scanIdentifier$1("with"))
+        return null;
+      variableNames = A.LinkedHashSet_LinkedHashSet$_empty(type$.String);
+      configuration = A._setArrayType([], type$.JSArray_ConfiguredVariable_2);
+      _this.whitespace$0();
+      t1 = _this.scanner;
+      t1.expectChar$1(40);
+      for (; true;) {
+        _this.whitespace$0();
+        t2 = t1._string_scanner$_position;
+        t1.expectChar$1(36);
+        $name = _this.identifier$1$normalize(true);
+        _this.whitespace$0();
+        t1.expectChar$1(58);
+        _this.whitespace$0();
+        expression = _this.expressionUntilComma$0();
+        t3 = t1._string_scanner$_position;
+        if (allowGuarded && t1.scanChar$1(33)) {
+          guarded = _this.identifier$0() === "default";
+          if (guarded)
+            _this.whitespace$0();
+          else {
+            endPosition = t1._string_scanner$_position;
+            t4 = t1._sourceFile;
+            t5 = new A._FileSpan(t4, t3, endPosition);
+            t5._FileSpan$3(t4, t3, endPosition);
+            _this.error$2(0, "Invalid flag name.", t5);
+          }
+        } else
+          guarded = false;
+        endPosition = t1._string_scanner$_position;
+        t3 = t1._sourceFile;
+        span = new A._FileSpan(t3, t2, endPosition);
+        span._FileSpan$3(t3, t2, endPosition);
+        if (variableNames.contains$1(0, $name))
+          _this.error$2(0, string$.The_sa, span);
+        variableNames.add$1(0, $name);
+        configuration.push(new A.ConfiguredVariable0($name, expression, guarded, span));
+        if (!t1.scanChar$1(44))
+          break;
+        _this.whitespace$0();
+        if (!_this._stylesheet0$_lookingAtExpression$0())
+          break;
+      }
+      t1.expectChar$1(41);
+      return configuration;
+    },
+    _stylesheet0$_configuration$0() {
+      return this._stylesheet0$_configuration$1$allowGuarded(false);
+    },
+    _stylesheet0$_warnRule$1(start) {
+      var value = this._stylesheet0$_expression$0();
+      this.expectStatementSeparator$1("@warn rule");
+      return new A.WarnRule0(value, this.scanner.spanFrom$1(start));
+    },
+    _stylesheet0$_whileRule$2(start, child) {
+      var _this = this,
+        wasInControlDirective = _this._stylesheet0$_inControlDirective;
+      _this._stylesheet0$_inControlDirective = true;
+      return _this._stylesheet0$_withChildren$3(child, start, new A.StylesheetParser__whileRule_closure0(_this, wasInControlDirective, _this._stylesheet0$_expression$0()));
+    },
+    unknownAtRule$2(start, $name) {
+      var t2, t3, rule, _this = this, t1 = {},
+        wasInUnknownAtRule = _this._stylesheet0$_inUnknownAtRule;
+      _this._stylesheet0$_inUnknownAtRule = true;
+      t1.value = null;
+      t2 = _this.scanner;
+      t3 = t2.peekChar$0() !== 33 && !_this.atEndOfStatement$0() ? t1.value = _this.almostAnyValue$0() : null;
+      if (_this.lookingAtChildren$0())
+        rule = _this._stylesheet0$_withChildren$3(_this.get$_stylesheet0$_statement(), start, new A.StylesheetParser_unknownAtRule_closure0(t1, $name));
+      else {
+        _this.expectStatementSeparator$0();
+        rule = A.AtRule$0($name, t2.spanFrom$1(start), null, t3);
+      }
+      _this._stylesheet0$_inUnknownAtRule = wasInUnknownAtRule;
+      return rule;
+    },
+    _stylesheet0$_disallowedAtRule$1(start) {
+      this.almostAnyValue$0();
+      this.error$2(0, "This at-rule is not allowed here.", this.scanner.spanFrom$1(start));
+    },
+    _stylesheet0$_argumentDeclaration$0() {
+      var $arguments, named, restArgument, t3, $name, defaultValue, endPosition, t4, t5, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expectChar$1(40);
+      _this.whitespace$0();
+      $arguments = A._setArrayType([], type$.JSArray_Argument_2);
+      named = A.LinkedHashSet_LinkedHashSet$_empty(type$.String);
+      while (true) {
+        if (!(t1.peekChar$0() === 36)) {
+          restArgument = null;
+          break;
+        }
+        t3 = t1._string_scanner$_position;
+        t1.expectChar$1(36);
+        $name = _this.identifier$1$normalize(true);
+        _this.whitespace$0();
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          defaultValue = _this.expressionUntilComma$0();
+        } else {
+          if (t1.scanChar$1(46)) {
+            t1.expectChar$1(46);
+            t1.expectChar$1(46);
+            _this.whitespace$0();
+            restArgument = $name;
+            break;
+          }
+          defaultValue = null;
+        }
+        endPosition = t1._string_scanner$_position;
+        t4 = t1._sourceFile;
+        t5 = new A._FileSpan(t4, t3, endPosition);
+        t5._FileSpan$3(t4, t3, endPosition);
+        $arguments.push(new A.Argument0($name, defaultValue, t5));
+        if (!named.add$1(0, $name))
+          _this.error$2(0, "Duplicate argument.", B.JSArray_methods.get$last($arguments).span);
+        if (!t1.scanChar$1(44)) {
+          restArgument = null;
+          break;
+        }
+        _this.whitespace$0();
+      }
+      t1.expectChar$1(41);
+      t1 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      return new A.ArgumentDeclaration0(A.List_List$unmodifiable($arguments, type$.Argument_2), restArgument, t1);
+    },
+    _stylesheet0$_argumentInvocation$2$allowEmptySecondArg$mixin(allowEmptySecondArg, mixin) {
+      var positional, t3, t4, named, keywordRest, t5, rest, expression, t6, t7, result, _this = this, _null = null,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expectChar$1(40);
+      _this.whitespace$0();
+      positional = A._setArrayType([], type$.JSArray_Expression_2);
+      t3 = type$.String;
+      t4 = type$.Expression_2;
+      named = A.LinkedHashMap_LinkedHashMap$_empty(t3, t4);
+      t5 = !mixin;
+      rest = _null;
+      while (true) {
+        if (!_this._stylesheet0$_lookingAtExpression$0()) {
+          keywordRest = _null;
+          break;
+        }
+        expression = _this.expressionUntilComma$1$singleEquals(t5);
+        _this.whitespace$0();
+        if (expression instanceof A.VariableExpression0 && t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t6 = expression.name;
+          if (named.containsKey$1(t6))
+            _this.error$2(0, "Duplicate argument.", expression.span);
+          named.$indexSet(0, t6, _this.expressionUntilComma$1$singleEquals(t5));
+        } else if (t1.scanChar$1(46)) {
+          t1.expectChar$1(46);
+          t1.expectChar$1(46);
+          if (rest != null) {
+            _this.whitespace$0();
+            keywordRest = expression;
+            break;
+          }
+          rest = expression;
+        } else if (named.__js_helper$_length !== 0)
+          _this.error$2(0, string$.Positi, expression.get$span(expression));
+        else
+          positional.push(expression);
+        _this.whitespace$0();
+        if (!t1.scanChar$1(44)) {
+          keywordRest = _null;
+          break;
+        }
+        _this.whitespace$0();
+        if (allowEmptySecondArg && positional.length === 1 && named.__js_helper$_length === 0 && rest == null && t1.peekChar$0() === 41) {
+          t5 = t1._sourceFile;
+          t6 = t1._string_scanner$_position;
+          new A.FileLocation(t5, t6).FileLocation$_$2(t5, t6);
+          t7 = new A._FileSpan(t5, t6, t6);
+          t7._FileSpan$3(t5, t6, t6);
+          t6 = A._setArrayType([""], type$.JSArray_Object);
+          result = A.List_List$from(t6, false, type$.Object);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t5 = new A.Interpolation0(result, t7);
+          t5.Interpolation$20(t6, t7);
+          positional.push(new A.StringExpression0(t5, false));
+          keywordRest = _null;
+          break;
+        }
+      }
+      t1.expectChar$1(41);
+      t1 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      return new A.ArgumentInvocation0(A.List_List$unmodifiable(positional, t4), A.ConstantMap_ConstantMap$from(named, t3, t4), rest, keywordRest, t1);
+    },
+    _stylesheet0$_argumentInvocation$0() {
+      return this._stylesheet0$_argumentInvocation$2$allowEmptySecondArg$mixin(false, false);
+    },
+    _stylesheet0$_argumentInvocation$1$allowEmptySecondArg(allowEmptySecondArg) {
+      return this._stylesheet0$_argumentInvocation$2$allowEmptySecondArg$mixin(allowEmptySecondArg, false);
+    },
+    _stylesheet0$_argumentInvocation$1$mixin(mixin) {
+      return this._stylesheet0$_argumentInvocation$2$allowEmptySecondArg$mixin(false, mixin);
+    },
+    _stylesheet0$_expression$3$bracketList$singleEquals$until(bracketList, singleEquals, until) {
+      var t2, beforeBracket, start, wasInExpression, wasInParentheses, resetState, resolveOneOperation, resolveOperations, addSingleExpression, addOperator, resolveSpaceExpressions, t3, _3_0, _1_0, t4, _3_28, _2_0, _3_32, _3_40, commaExpressions, spaceExpressions, singleExpression, _this = this,
+        _s20_ = "Expected expression.",
+        _box_0 = {},
+        t1 = until != null;
+      if (t1 && until.call$0())
+        _this.scanner.error$1(0, _s20_);
+      if (bracketList) {
+        t2 = _this.scanner;
+        beforeBracket = new A._SpanScannerState(t2, t2._string_scanner$_position);
+        t2.expectChar$1(91);
+        _this.whitespace$0();
+        if (t2.scanChar$1(93)) {
+          t1 = A._setArrayType([], type$.JSArray_Expression_2);
+          t2 = t2.spanFrom$1(beforeBracket);
+          return new A.ListExpression0(A.List_List$unmodifiable(t1, type$.Expression_2), B.ListSeparator_undecided_null_undecided0, true, t2);
+        }
+      } else
+        beforeBracket = null;
+      t2 = _this.scanner;
+      start = new A._SpanScannerState(t2, t2._string_scanner$_position);
+      wasInExpression = _this._stylesheet0$_inExpression;
+      wasInParentheses = _this._stylesheet0$_inParentheses;
+      _this._stylesheet0$_inExpression = true;
+      _box_0.operands_ = _box_0.operators_ = _box_0.spaceExpressions_ = _box_0.commaExpressions_ = null;
+      _box_0.allowSlash = true;
+      _box_0.singleExpression_ = _this._stylesheet0$_singleExpression$0();
+      resetState = new A.StylesheetParser__expression_resetState0(_box_0, _this, start);
+      resolveOneOperation = new A.StylesheetParser__expression_resolveOneOperation0(_box_0, _this);
+      resolveOperations = new A.StylesheetParser__expression_resolveOperations0(_box_0, resolveOneOperation);
+      addSingleExpression = new A.StylesheetParser__expression_addSingleExpression0(_box_0, _this, resetState, resolveOperations);
+      addOperator = new A.StylesheetParser__expression_addOperator0(_box_0, _this, resolveOneOperation);
+      resolveSpaceExpressions = new A.StylesheetParser__expression_resolveSpaceExpressions0(_box_0, _this, resolveOperations);
+      for (t3 = type$.JSArray_Expression_2; true;) {
+        _this.whitespace$0();
+        if (t1 && until.call$0())
+          break;
+        _3_0 = t2.peekChar$0();
+        if (_3_0 == null)
+          break;
+        if (40 === _3_0) {
+          addSingleExpression.call$1(_this.parentheses$0());
+          continue;
+        }
+        if (91 === _3_0) {
+          addSingleExpression.call$1(_this._stylesheet0$_expression$1$bracketList(true));
+          continue;
+        }
+        if (36 === _3_0) {
+          addSingleExpression.call$1(_this._stylesheet0$_variable$0());
+          continue;
+        }
+        if (38 === _3_0) {
+          addSingleExpression.call$1(_this._stylesheet0$_selector$0());
+          continue;
+        }
+        if (39 === _3_0 || 34 === _3_0) {
+          addSingleExpression.call$1(_this.interpolatedString$0());
+          continue;
+        }
+        if (35 === _3_0) {
+          addSingleExpression.call$1(_this._stylesheet0$_hashExpression$0());
+          continue;
+        }
+        if (61 === _3_0) {
+          t2.readChar$0();
+          if (singleEquals && t2.peekChar$0() !== 61)
+            addOperator.call$1(B.BinaryOperator_wdM0);
+          else {
+            t2.expectChar$1(61);
+            addOperator.call$1(B.BinaryOperator_g8k0);
+          }
+          continue;
+        }
+        if (33 === _3_0) {
+          $label0$1: {
+            _1_0 = t2.peekChar$1(1);
+            if (61 === _1_0) {
+              t2.readChar$0();
+              t2.readChar$0();
+              addOperator.call$1(B.BinaryOperator_icU0);
+              break $label0$1;
+            }
+            if (_1_0 != null)
+              if (105 !== _1_0)
+                if (73 !== _1_0)
+                  t4 = _1_0 === 32 || _1_0 === 9 || _1_0 === 10 || _1_0 === 13 || _1_0 === 12;
+                else
+                  t4 = true;
+              else
+                t4 = true;
+            else
+              t4 = true;
+            if (t4) {
+              addSingleExpression.call$1(_this._stylesheet0$_importantExpression$0());
+              break $label0$1;
+            }
+            break;
+          }
+          continue;
+        }
+        if (60 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(t2.scanChar$1(61) ? B.BinaryOperator_SPQ0 : B.BinaryOperator_miq0);
+          continue;
+        }
+        if (62 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(t2.scanChar$1(61) ? B.BinaryOperator_oEm0 : B.BinaryOperator_bEa0);
+          continue;
+        }
+        if (42 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_2No0);
+          continue;
+        }
+        _3_28 = 43 === _3_0;
+        if (_3_28 && _box_0.singleExpression_ == null) {
+          addSingleExpression.call$1(_this._stylesheet0$_unaryOperation$0());
+          continue;
+        }
+        if (_3_28) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_u150);
+          continue;
+        }
+        if (45 === _3_0) {
+          _2_0 = t2.peekChar$1(1);
+          if (A._isInt(_2_0) && _2_0 >= 48 && _2_0 <= 57 || 46 === _2_0)
+            if (_box_0.singleExpression_ != null) {
+              t4 = t2.peekChar$1(-1);
+              t4 = t4 === 32 || t4 === 9 || t4 === 10 || t4 === 13 || t4 === 12;
+            } else
+              t4 = true;
+          else
+            t4 = false;
+          if (t4)
+            addSingleExpression.call$1(_this._stylesheet0$_number$0());
+          else if (_this._stylesheet0$_lookingAtInterpolatedIdentifier$0())
+            addSingleExpression.call$1(_this.identifierLike$0());
+          else if (_box_0.singleExpression_ == null)
+            addSingleExpression.call$1(_this._stylesheet0$_unaryOperation$0());
+          else {
+            t2.readChar$0();
+            addOperator.call$1(B.BinaryOperator_SjO0);
+          }
+          continue;
+        }
+        _3_32 = 47 === _3_0;
+        if (_3_32 && _box_0.singleExpression_ == null) {
+          addSingleExpression.call$1(_this._stylesheet0$_unaryOperation$0());
+          continue;
+        }
+        if (_3_32) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_U770);
+          continue;
+        }
+        if (37 === _3_0) {
+          t2.readChar$0();
+          addOperator.call$1(B.BinaryOperator_KNx0);
+          continue;
+        }
+        if (_3_0 >= 48 && _3_0 <= 57) {
+          addSingleExpression.call$1(_this._stylesheet0$_number$0());
+          continue;
+        }
+        _3_40 = 46 === _3_0;
+        if (_3_40 && t2.peekChar$1(1) === 46)
+          break;
+        if (_3_40) {
+          addSingleExpression.call$1(_this._stylesheet0$_number$0());
+          continue;
+        }
+        if (97 === _3_0 && !_this.get$plainCss() && _this.scanIdentifier$1("and")) {
+          addOperator.call$1(B.BinaryOperator_eDt0);
+          continue;
+        }
+        if (111 === _3_0 && !_this.get$plainCss() && _this.scanIdentifier$1("or")) {
+          addOperator.call$1(B.BinaryOperator_qNM0);
+          continue;
+        }
+        if ((117 === _3_0 || 85 === _3_0) && t2.peekChar$1(1) === 43) {
+          addSingleExpression.call$1(_this._stylesheet0$_unicodeRange$0());
+          continue;
+        }
+        if (!(_3_0 >= 97 && _3_0 <= 122))
+          t4 = _3_0 >= 65 && _3_0 <= 90 || 95 === _3_0 || 92 === _3_0 || _3_0 >= 128;
+        else
+          t4 = true;
+        if (t4) {
+          addSingleExpression.call$1(_this.identifierLike$0());
+          continue;
+        }
+        if (44 === _3_0) {
+          if (_this._stylesheet0$_inParentheses) {
+            _this._stylesheet0$_inParentheses = false;
+            if (_box_0.allowSlash) {
+              resetState.call$0();
+              continue;
+            }
+          }
+          commaExpressions = _box_0.commaExpressions_;
+          if (commaExpressions == null)
+            commaExpressions = _box_0.commaExpressions_ = A._setArrayType([], t3);
+          if (_box_0.singleExpression_ == null)
+            t2.error$1(0, _s20_);
+          resolveSpaceExpressions.call$0();
+          t4 = _box_0.singleExpression_;
+          t4.toString;
+          commaExpressions.push(t4);
+          t2.readChar$0();
+          _box_0.allowSlash = true;
+          _box_0.singleExpression_ = null;
+          continue;
+        }
+        break;
+      }
+      if (bracketList)
+        t2.expectChar$1(93);
+      commaExpressions = _box_0.commaExpressions_;
+      spaceExpressions = _box_0.spaceExpressions_;
+      if (commaExpressions != null) {
+        resolveSpaceExpressions.call$0();
+        _this._stylesheet0$_inParentheses = wasInParentheses;
+        singleExpression = _box_0.singleExpression_;
+        if (singleExpression != null)
+          commaExpressions.push(singleExpression);
+        _this._stylesheet0$_inExpression = wasInExpression;
+        t1 = t2.spanFrom$1(beforeBracket == null ? start : beforeBracket);
+        return new A.ListExpression0(A.List_List$unmodifiable(commaExpressions, type$.Expression_2), B.ListSeparator_ECn0, bracketList, t1);
+      } else if (bracketList && spaceExpressions != null) {
+        resolveOperations.call$0();
+        _this._stylesheet0$_inExpression = wasInExpression;
+        t1 = _box_0.singleExpression_;
+        t1.toString;
+        spaceExpressions.push(t1);
+        beforeBracket.toString;
+        t2 = t2.spanFrom$1(beforeBracket);
+        return new A.ListExpression0(A.List_List$unmodifiable(spaceExpressions, type$.Expression_2), B.ListSeparator_nbm0, true, t2);
+      } else {
+        resolveSpaceExpressions.call$0();
+        if (bracketList) {
+          t1 = _box_0.singleExpression_;
+          t1.toString;
+          t3 = A._setArrayType([t1], t3);
+          beforeBracket.toString;
+          t2 = t2.spanFrom$1(beforeBracket);
+          _box_0.singleExpression_ = new A.ListExpression0(A.List_List$unmodifiable(t3, type$.Expression_2), B.ListSeparator_undecided_null_undecided0, true, t2);
+        }
+        _this._stylesheet0$_inExpression = wasInExpression;
+        t1 = _box_0.singleExpression_;
+        t1.toString;
+        return t1;
+      }
+    },
+    _stylesheet0$_expression$2$singleEquals$until(singleEquals, until) {
+      return this._stylesheet0$_expression$3$bracketList$singleEquals$until(false, singleEquals, until);
+    },
+    _stylesheet0$_expression$1$bracketList(bracketList) {
+      return this._stylesheet0$_expression$3$bracketList$singleEquals$until(bracketList, false, null);
+    },
+    _stylesheet0$_expression$0() {
+      return this._stylesheet0$_expression$3$bracketList$singleEquals$until(false, false, null);
+    },
+    _stylesheet0$_expression$1$until(until) {
+      return this._stylesheet0$_expression$3$bracketList$singleEquals$until(false, false, until);
+    },
+    expressionUntilComma$1$singleEquals(singleEquals) {
+      return this._stylesheet0$_expression$2$singleEquals$until(singleEquals, new A.StylesheetParser_expressionUntilComma_closure0(this));
+    },
+    expressionUntilComma$0() {
+      return this.expressionUntilComma$1$singleEquals(false);
+    },
+    _stylesheet0$_isSlashOperand$1(expression) {
+      var t1;
+      if (!(expression instanceof A.NumberExpression0))
+        if (!(expression instanceof A.FunctionExpression0))
+          t1 = expression instanceof A.BinaryOperationExpression0 && expression.allowsSlash;
+        else
+          t1 = true;
+      else
+        t1 = true;
+      return t1;
+    },
+    _stylesheet0$_singleExpression$0() {
+      var next, t2, _this = this,
+        _s20_ = "Expected expression.",
+        t1 = _this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_0_0 == null)
+          t1.error$1(0, _s20_);
+        if (40 === _0_0) {
+          t1 = _this.parentheses$0();
+          break $label0$0;
+        }
+        if (47 === _0_0) {
+          t1 = _this._stylesheet0$_unaryOperation$0();
+          break $label0$0;
+        }
+        if (46 === _0_0) {
+          t1 = _this._stylesheet0$_number$0();
+          break $label0$0;
+        }
+        if (91 === _0_0) {
+          t1 = _this._stylesheet0$_expression$1$bracketList(true);
+          break $label0$0;
+        }
+        if (36 === _0_0) {
+          t1 = _this._stylesheet0$_variable$0();
+          break $label0$0;
+        }
+        if (38 === _0_0) {
+          t1 = _this._stylesheet0$_selector$0();
+          break $label0$0;
+        }
+        if (39 === _0_0 || 34 === _0_0) {
+          t1 = _this.interpolatedString$0();
+          break $label0$0;
+        }
+        if (35 === _0_0) {
+          t1 = _this._stylesheet0$_hashExpression$0();
+          break $label0$0;
+        }
+        if (43 === _0_0) {
+          next = t1.peekChar$1(1);
+          t1 = next != null && next >= 48 && next <= 57 || next === 46 ? _this._stylesheet0$_number$0() : _this._stylesheet0$_unaryOperation$0();
+          break $label0$0;
+        }
+        if (45 === _0_0) {
+          t1 = _this._stylesheet0$_minusExpression$0();
+          break $label0$0;
+        }
+        if (33 === _0_0) {
+          t1 = _this._stylesheet0$_importantExpression$0();
+          break $label0$0;
+        }
+        if ((117 === _0_0 || 85 === _0_0) && t1.peekChar$1(1) === 43) {
+          t1 = _this._stylesheet0$_unicodeRange$0();
+          break $label0$0;
+        }
+        if (_0_0 >= 48 && _0_0 <= 57) {
+          t1 = _this._stylesheet0$_number$0();
+          break $label0$0;
+        }
+        if (!(_0_0 >= 97 && _0_0 <= 122))
+          t2 = _0_0 >= 65 && _0_0 <= 90 || 95 === _0_0 || 92 === _0_0 || _0_0 >= 128;
+        else
+          t2 = true;
+        if (t2) {
+          t1 = _this.identifierLike$0();
+          break $label0$0;
+        }
+        t1 = t1.error$1(0, _s20_);
+      }
+      return t1;
+    },
+    parentheses$0() {
+      var start, first, expressions, t1, t2, _this = this,
+        wasInParentheses = _this._stylesheet0$_inParentheses;
+      _this._stylesheet0$_inParentheses = true;
+      try {
+        t1 = _this.scanner;
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+        t1.expectChar$1(40);
+        _this.whitespace$0();
+        if (!_this._stylesheet0$_lookingAtExpression$0()) {
+          t1.expectChar$1(41);
+          t2 = A._setArrayType([], type$.JSArray_Expression_2);
+          t1 = t1.spanFrom$1(start);
+          t2 = A.List_List$unmodifiable(t2, type$.Expression_2);
+          return new A.ListExpression0(t2, B.ListSeparator_undecided_null_undecided0, false, t1);
+        }
+        first = _this.expressionUntilComma$0();
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t1 = _this._stylesheet0$_map$2(first, start);
+          return t1;
+        }
+        if (!t1.scanChar$1(44)) {
+          t1.expectChar$1(41);
+          t1 = t1.spanFrom$1(start);
+          return new A.ParenthesizedExpression0(first, t1);
+        }
+        _this.whitespace$0();
+        expressions = A._setArrayType([first], type$.JSArray_Expression_2);
+        for (; true;) {
+          if (!_this._stylesheet0$_lookingAtExpression$0())
+            break;
+          J.add$1$ax(expressions, _this.expressionUntilComma$0());
+          if (!t1.scanChar$1(44))
+            break;
+          _this.whitespace$0();
+        }
+        t1.expectChar$1(41);
+        t1 = t1.spanFrom$1(start);
+        t2 = A.List_List$unmodifiable(expressions, type$.Expression_2);
+        return new A.ListExpression0(t2, B.ListSeparator_ECn0, false, t1);
+      } finally {
+        _this._stylesheet0$_inParentheses = wasInParentheses;
+      }
+    },
+    _stylesheet0$_map$2(first, start) {
+      var t1, key, _this = this,
+        pairs = A._setArrayType([new A._Record_2(first, _this.expressionUntilComma$0())], type$.JSArray_Record_2_Expression_and_Expression_2);
+      for (t1 = _this.scanner; t1.scanChar$1(44);) {
+        _this.whitespace$0();
+        if (!_this._stylesheet0$_lookingAtExpression$0())
+          break;
+        key = _this.expressionUntilComma$0();
+        t1.expectChar$1(58);
+        _this.whitespace$0();
+        pairs.push(new A._Record_2(key, _this.expressionUntilComma$0()));
+      }
+      t1.expectChar$1(41);
+      t1 = t1.spanFrom$1(start);
+      return new A.MapExpression0(A.List_List$unmodifiable(pairs, type$.Record_2_Expression_and_Expression_2), t1);
+    },
+    _stylesheet0$_hashExpression$0() {
+      var start, t2, identifier, buffer, t3, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$1(1) === 123)
+        return _this.identifierLike$0();
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(35);
+      t2 = t1.peekChar$0();
+      if (t2 == null)
+        t2 = null;
+      else
+        t2 = t2 >= 48 && t2 <= 57;
+      if (t2 === true)
+        return new A.ColorExpression0(_this._stylesheet0$_hexColorContents$1(start), t1.spanFrom$1(start));
+      t2 = t1._string_scanner$_position;
+      identifier = _this.interpolatedIdentifier$0();
+      if (_this._stylesheet0$_isHexColor$1(identifier)) {
+        t1.set$state(new A._SpanScannerState(t1, t2));
+        return new A.ColorExpression0(_this._stylesheet0$_hexColorContents$1(start), t1.spanFrom$1(start));
+      }
+      t2 = new A.StringBuffer("");
+      buffer = new A.InterpolationBuffer0(t2, A._setArrayType([], type$.JSArray_Object));
+      t3 = A.Primitives_stringFromCharCode(35);
+      t2._contents += t3;
+      buffer.addInterpolation$1(identifier);
+      return new A.StringExpression0(buffer.interpolation$1(t1.spanFrom$1(start)), false);
+    },
+    _stylesheet0$_hexColorContents$1(start) {
+      var red, green, blue, alpha, digit4, t2, t3, t4, _this = this,
+        digit1 = _this._stylesheet0$_hexDigit$0(),
+        digit2 = _this._stylesheet0$_hexDigit$0(),
+        digit3 = _this._stylesheet0$_hexDigit$0(),
+        t1 = _this.scanner,
+        $self = t1.peekChar$0();
+      if (!($self != null && A.CharacterExtension_get_isHex0($self))) {
+        red = (digit1 << 4 >>> 0) + digit1;
+        green = (digit2 << 4 >>> 0) + digit2;
+        blue = (digit3 << 4 >>> 0) + digit3;
+        alpha = null;
+      } else {
+        digit4 = _this._stylesheet0$_hexDigit$0();
+        $self = t1.peekChar$0();
+        t2 = $self != null && A.CharacterExtension_get_isHex0($self);
+        t3 = digit1 << 4 >>> 0;
+        t4 = digit3 << 4 >>> 0;
+        if (!t2) {
+          red = t3 + digit1;
+          green = (digit2 << 4 >>> 0) + digit2;
+          blue = t4 + digit3;
+          alpha = ((digit4 << 4 >>> 0) + digit4) / 255;
+        } else {
+          red = t3 + digit2;
+          green = t4 + digit4;
+          blue = (_this._stylesheet0$_hexDigit$0() << 4 >>> 0) + _this._stylesheet0$_hexDigit$0();
+          $self = t1.peekChar$0();
+          alpha = $self != null && A.CharacterExtension_get_isHex0($self) ? ((_this._stylesheet0$_hexDigit$0() << 4 >>> 0) + _this._stylesheet0$_hexDigit$0()) / 255 : null;
+        }
+      }
+      t2 = alpha == null;
+      t3 = t2 ? 1 : alpha;
+      return A.SassColor$rgbInternal0(red, green, blue, t3, t2 ? new A.SpanColorFormat0(t1.spanFrom$1(start)) : null);
+    },
+    _stylesheet0$_isHexColor$1(interpolation) {
+      var _0_2, t1,
+        plain = interpolation.get$asPlain();
+      if (typeof plain == "string") {
+        _0_2 = plain.length;
+        if (3 !== _0_2)
+          if (4 !== _0_2)
+            if (6 !== _0_2)
+              t1 = 8 === _0_2;
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+      } else
+        t1 = false;
+      if (t1) {
+        t1 = new A.CodeUnits(plain);
+        return t1.every$1(t1, new A.StylesheetParser__isHexColor_closure0());
+      } else
+        return false;
+    },
+    _stylesheet0$_hexDigit$0() {
+      var t1 = this.scanner,
+        t2 = t1.peekChar$0();
+      t2 = t2 == null ? null : A.CharacterExtension_get_isHex0(t2);
+      return t2 === true ? A.asHex0(t1.readChar$0()) : t1.error$1(0, "Expected hex digit.");
+    },
+    _stylesheet0$_minusExpression$0() {
+      var _this = this,
+        _0_0 = _this.scanner.peekChar$1(1);
+      if (A._isInt(_0_0) && _0_0 >= 48 && _0_0 <= 57 || 46 === _0_0)
+        return _this._stylesheet0$_number$0();
+      if (_this._stylesheet0$_lookingAtInterpolatedIdentifier$0())
+        return _this.identifierLike$0();
+      return _this._stylesheet0$_unaryOperation$0();
+    },
+    _stylesheet0$_importantExpression$0() {
+      var t1 = this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.readChar$0();
+      this.whitespace$0();
+      this.expectIdentifier$1("important");
+      t2 = t1.spanFrom$1(new A._SpanScannerState(t1, t2));
+      return new A.StringExpression0(A.Interpolation$0(A._setArrayType(["!important"], type$.JSArray_Object), t2), false);
+    },
+    _stylesheet0$_unaryOperation$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        operator = _this._stylesheet0$_unaryOperatorFor$1(t1.readChar$0());
+      if (operator == null)
+        t1.error$2$position(0, "Expected unary operator.", t1._string_scanner$_position - 1);
+      else if (_this.get$plainCss() && operator !== B.UnaryOperator_SJr0)
+        t1.error$3$length$position(0, "Operators aren't allowed in plain CSS.", 1, t1._string_scanner$_position - 1);
+      _this.whitespace$0();
+      return new A.UnaryOperationExpression0(operator, _this._stylesheet0$_singleExpression$0(), t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _stylesheet0$_unaryOperatorFor$1(character) {
+      var t1;
+      $label0$0: {
+        if (43 === character) {
+          t1 = B.UnaryOperator_cLp0;
+          break $label0$0;
+        }
+        if (45 === character) {
+          t1 = B.UnaryOperator_AiQ0;
+          break $label0$0;
+        }
+        if (47 === character) {
+          t1 = B.UnaryOperator_SJr0;
+          break $label0$0;
+        }
+        t1 = null;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _stylesheet0$_number$0() {
+      var number, unit, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        first = t1.peekChar$0(),
+        t3 = first !== 43;
+      if (!t3 || first === 45)
+        t1.readChar$0();
+      if (t1.peekChar$0() !== 46)
+        _this._stylesheet0$_consumeNaturalNumber$0();
+      _this._stylesheet0$_tryDecimal$1$allowTrailingDot(t1._string_scanner$_position !== t2 && t3 && first !== 45);
+      _this._stylesheet0$_tryExponent$0();
+      number = A.double_parse(t1.substring$1(0, t2));
+      if (t1.scanChar$1(37))
+        unit = "%";
+      else {
+        if (_this.lookingAtIdentifier$0())
+          t3 = t1.peekChar$0() !== 45 || t1.peekChar$1(1) !== 45;
+        else
+          t3 = false;
+        unit = t3 ? _this.identifier$1$unit(true) : null;
+      }
+      return new A.NumberExpression0(number, unit, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _stylesheet0$_consumeNaturalNumber$0() {
+      var $self,
+        t1 = this.scanner,
+        t2 = t1.readChar$0();
+      if (!(t2 >= 48 && t2 <= 57))
+        t1.error$2$position(0, "Expected digit.", t1._string_scanner$_position - 1);
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t1.readChar$0();
+      }
+    },
+    _stylesheet0$_tryDecimal$1$allowTrailingDot(allowTrailingDot) {
+      var $self,
+        t1 = this.scanner;
+      if (t1.peekChar$0() !== 46)
+        return;
+      $self = t1.peekChar$1(1);
+      if (!($self != null && $self >= 48 && $self <= 57)) {
+        if (allowTrailingDot)
+          return;
+        t1.error$2$position(0, "Expected digit.", t1._string_scanner$_position + 1);
+      }
+      t1.readChar$0();
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t1.readChar$0();
+      }
+    },
+    _stylesheet0$_tryExponent$0() {
+      var next, $self,
+        t1 = this.scanner,
+        first = t1.peekChar$0();
+      if (first !== 101 && first !== 69)
+        return;
+      next = t1.peekChar$1(1);
+      if (!(next != null && next >= 48 && next <= 57) && next !== 45 && next !== 43)
+        return;
+      t1.readChar$0();
+      if (43 === next || 45 === next)
+        t1.readChar$0();
+      $self = t1.peekChar$0();
+      if (!($self != null && $self >= 48 && $self <= 57))
+        t1.error$1(0, "Expected digit.");
+      while (true) {
+        $self = t1.peekChar$0();
+        if (!($self != null && $self >= 48 && $self <= 57))
+          break;
+        t1.readChar$0();
+      }
+    },
+    _stylesheet0$_unicodeRange$0() {
+      var firstRangeLength, hasQuestionMark, t2, secondRangeLength, _this = this,
+        _s26_ = "Expected at most 6 digits.",
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _this.expectIdentChar$1(117);
+      t1.expectChar$1(43);
+      for (firstRangeLength = 0; _this.scanCharIf$1(new A.StylesheetParser__unicodeRange_closure1());)
+        ++firstRangeLength;
+      for (hasQuestionMark = false; t1.scanChar$1(63); hasQuestionMark = true)
+        ++firstRangeLength;
+      if (firstRangeLength === 0)
+        t1.error$1(0, 'Expected hex digit or "?".');
+      else if (firstRangeLength > 6)
+        _this.error$2(0, _s26_, t1.spanFrom$1(start));
+      else if (hasQuestionMark) {
+        t2 = t1.substring$1(0, start.position);
+        t1 = t1.spanFrom$1(start);
+        return new A.StringExpression0(A.Interpolation$0(A._setArrayType([t2], type$.JSArray_Object), t1), false);
+      }
+      if (t1.scanChar$1(45)) {
+        t2 = t1._string_scanner$_position;
+        for (secondRangeLength = 0; _this.scanCharIf$1(new A.StylesheetParser__unicodeRange_closure2());)
+          ++secondRangeLength;
+        if (secondRangeLength === 0)
+          t1.error$1(0, "Expected hex digit.");
+        else if (secondRangeLength > 6)
+          _this.error$2(0, _s26_, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      }
+      if (_this._stylesheet0$_lookingAtInterpolatedIdentifierBody$0())
+        t1.error$1(0, "Expected end of identifier.");
+      t2 = t1.substring$1(0, start.position);
+      t1 = t1.spanFrom$1(start);
+      return new A.StringExpression0(A.Interpolation$0(A._setArrayType([t2], type$.JSArray_Object), t1), false);
+    },
+    _stylesheet0$_variable$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        $name = _this.variableName$0();
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Sass_v, t1.spanFrom$1(start));
+      return new A.VariableExpression0(null, $name, t1.spanFrom$1(start));
+    },
+    _stylesheet0$_selector$0() {
+      var t1, start, _this = this;
+      if (_this.get$plainCss())
+        _this.scanner.error$2$length(0, string$.The_pa, 1);
+      t1 = _this.scanner;
+      start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      t1.expectChar$1(38);
+      if (t1.scanChar$1(38)) {
+        _this.logger.warn$2$span(0, string$.In_Sas, t1.spanFrom$1(start));
+        t1.set$position(t1._string_scanner$_position - 1);
+      }
+      return new A.SelectorExpression0(t1.spanFrom$1(start));
+    },
+    interpolatedString$0() {
+      var t3, t4, buffer, _0_0, second, t5,
+        t1 = this.scanner,
+        t2 = t1._string_scanner$_position,
+        quote = t1.readChar$0();
+      if (quote !== 39 && quote !== 34)
+        t1.error$2$position(0, "Expected string.", t2);
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer0(t3, t4);
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 === quote) {
+          t1.readChar$0();
+          break;
+        }
+        if (_0_0 == null || _0_0 === 10 || _0_0 === 13 || _0_0 === 12)
+          t1.error$1(0, "Expected " + A.Primitives_stringFromCharCode(quote) + ".");
+        if (92 === _0_0) {
+          second = t1.peekChar$1(1);
+          if (second === 10 || second === 13 || second === 12) {
+            t1.readChar$0();
+            t1.readChar$0();
+            if (second === 13)
+              t1.scanChar$1(10);
+          } else {
+            t5 = A.Primitives_stringFromCharCode(A.consumeEscapedCharacter0(t1));
+            t3._contents += t5;
+          }
+          continue;
+        }
+        if (35 === _0_0 && t1.peekChar$1(1) === 123) {
+          t5 = this.singleInterpolation$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t4.push(t5);
+          continue;
+        }
+        t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+        t3._contents += t5;
+      }
+      return new A.StringExpression0(buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2))), true);
+    },
+    identifierLike$0() {
+      var invocation, expression, _0_0, _1_0, _2_0, _2_2, _2_4, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        identifier = _this.interpolatedIdentifier$0(),
+        plain = identifier.get$asPlain(),
+        lower = A._Cell$(),
+        t2 = plain != null;
+      if (t2) {
+        if (plain === "if" && t1.peekChar$0() === 40) {
+          invocation = _this._stylesheet0$_argumentInvocation$0();
+          return new A.IfExpression0(invocation, identifier.span.expand$1(0, invocation.span));
+        } else if (plain === "not") {
+          _this.whitespace$0();
+          expression = _this._stylesheet0$_singleExpression$0();
+          return new A.UnaryOperationExpression0(B.UnaryOperator_not_not_not0, expression, identifier.span.expand$1(0, expression.get$span(expression)));
+        }
+        lower.__late_helper$_value = plain.toLowerCase();
+        if (t1.peekChar$0() !== 40) {
+          switch (plain) {
+            case "false":
+              return new A.BooleanExpression0(false, identifier.span);
+            case "null":
+              return new A.NullExpression0(identifier.span);
+            case "true":
+              return new A.BooleanExpression0(true, identifier.span);
+          }
+          _0_0 = $.$get$colorsByName0().$index(0, lower._readLocal$0());
+          if (_0_0 != null) {
+            t1 = identifier.span;
+            return new A.ColorExpression0(A.SassColor$rgbInternal0(_0_0.get$red(0), _0_0.get$green(0), _0_0.get$blue(0), _0_0._color1$_alpha, new A.SpanColorFormat0(t1)), t1);
+          }
+        }
+        _1_0 = _this.trySpecialFunction$2(lower._readLocal$0(), start);
+        if (_1_0 != null)
+          return _1_0;
+      }
+      _2_0 = t1.peekChar$0();
+      _2_2 = 46 === _2_0;
+      if (_2_2 && t1.peekChar$1(1) === 46)
+        return new A.StringExpression0(identifier, false);
+      if (_2_2) {
+        t1.readChar$0();
+        if (t2)
+          return _this.namespacedExpression$2(plain, start);
+        _this.error$2(0, string$.Interpn, identifier.span);
+      }
+      _2_4 = 40 === _2_0;
+      if (_2_4 && t2) {
+        t2 = _this._stylesheet0$_argumentInvocation$1$allowEmptySecondArg(J.$eq$(lower._readLocal$0(), "var"));
+        t1 = t1.spanFrom$1(start);
+        return new A.FunctionExpression0(null, A.stringReplaceAllUnchecked(plain, "_", "-"), plain, t2, t1);
+      }
+      if (_2_4)
+        return new A.InterpolatedFunctionExpression0(identifier, _this._stylesheet0$_argumentInvocation$0(), t1.spanFrom$1(start));
+      return new A.StringExpression0(identifier, false);
+    },
+    namespacedExpression$2(namespace, start) {
+      var $name, t2, t3, _this = this,
+        t1 = _this.scanner;
+      if (t1.peekChar$0() === 36) {
+        $name = _this.variableName$0();
+        _this._stylesheet0$_assertPublic$2($name, new A.StylesheetParser_namespacedExpression_closure0(_this, start));
+        return new A.VariableExpression0(namespace, $name, t1.spanFrom$1(start));
+      }
+      t2 = _this._stylesheet0$_publicIdentifier$0();
+      t3 = _this._stylesheet0$_argumentInvocation$0();
+      t1 = t1.spanFrom$1(start);
+      return new A.FunctionExpression0(namespace, A.stringReplaceAllUnchecked(t2, "_", "-"), t2, t3, t1);
+    },
+    trySpecialFunction$2($name, start) {
+      var t1, buffer, t2, next, t3, _this = this,
+        normalized = A.unvendor0($name);
+      $label0$0: {
+        if (!("calc" === normalized && normalized !== $name && _this.scanner.scanChar$1(40)))
+          t1 = ("element" === normalized || "expression" === normalized) && _this.scanner.scanChar$1(40);
+        else
+          t1 = true;
+        if (t1) {
+          t1 = new A.StringBuffer("");
+          buffer = new A.InterpolationBuffer0(t1, A._setArrayType([], type$.JSArray_Object));
+          t1._contents = "" + $name;
+          t2 = A.Primitives_stringFromCharCode(40);
+          t1._contents += t2;
+          break $label0$0;
+        }
+        if ("progid" === normalized && _this.scanner.scanChar$1(58)) {
+          t1 = new A.StringBuffer("");
+          buffer = new A.InterpolationBuffer0(t1, A._setArrayType([], type$.JSArray_Object));
+          t1._contents = "" + $name;
+          t2 = A.Primitives_stringFromCharCode(58);
+          t1._contents += t2;
+          t2 = _this.scanner;
+          next = t2.peekChar$0();
+          while (true) {
+            if (next != null) {
+              if (!(next >= 97 && next <= 122))
+                t3 = next >= 65 && next <= 90;
+              else
+                t3 = true;
+              t3 = t3 || next === 46;
+            } else
+              t3 = false;
+            if (!t3)
+              break;
+            t3 = A.Primitives_stringFromCharCode(t2.readChar$0());
+            t1._contents += t3;
+            next = t2.peekChar$0();
+          }
+          t2.expectChar$1(40);
+          t2 = A.Primitives_stringFromCharCode(40);
+          t1._contents += t2;
+          break $label0$0;
+        }
+        if ("url" === normalized)
+          return A.NullableExtension_andThen0(_this._stylesheet0$_tryUrlContents$1(start), new A.StylesheetParser_trySpecialFunction_closure0());
+        return null;
+      }
+      buffer.addInterpolation$1(_this._stylesheet0$_interpolatedDeclarationValue$1$allowEmpty(true));
+      t1 = _this.scanner;
+      t1.expectChar$1(41);
+      t2 = buffer._interpolation_buffer0$_text;
+      t3 = A.Primitives_stringFromCharCode(41);
+      t2._contents += t3;
+      return new A.StringExpression0(buffer.interpolation$1(t1.spanFrom$1(start)), false);
+    },
+    _stylesheet0$_tryUrlContents$2$name(start, $name) {
+      var t3, t4, buffer, t5, _0_0, _0_6, endPosition, result, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      if (!t1.scanChar$1(40))
+        return null;
+      _this.whitespaceWithoutComments$0();
+      t3 = new A.StringBuffer("");
+      t4 = A._setArrayType([], type$.JSArray_Object);
+      buffer = new A.InterpolationBuffer0(t3, t4);
+      t3._contents = "" + ($name == null ? "url" : $name);
+      t5 = A.Primitives_stringFromCharCode(40);
+      t3._contents += t5;
+      for (; true;) {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          break;
+        if (92 === _0_0) {
+          t5 = _this.escape$0();
+          t3._contents += t5;
+          continue;
+        }
+        _0_6 = 35 === _0_0;
+        if (_0_6 && t1.peekChar$1(1) === 123) {
+          t5 = _this.singleInterpolation$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t4.push(t5);
+          continue;
+        }
+        if (33 !== _0_0)
+          if (37 !== _0_0)
+            if (38 !== _0_0)
+              if (!_0_6)
+                t5 = _0_0 >= 42 && _0_0 <= 126 || _0_0 >= 128;
+              else
+                t5 = true;
+            else
+              t5 = true;
+          else
+            t5 = true;
+        else
+          t5 = true;
+        if (t5) {
+          t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t5;
+          continue;
+        }
+        if (_0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12) {
+          _this.whitespaceWithoutComments$0();
+          if (t1.peekChar$0() !== 41)
+            break;
+          continue;
+        }
+        if (41 === _0_0) {
+          t2 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t2;
+          endPosition = t1._string_scanner$_position;
+          t2 = t1._sourceFile;
+          t5 = start.position;
+          t1 = new A._FileSpan(t2, t5, endPosition);
+          t1._FileSpan$3(t2, t5, endPosition);
+          t5 = type$.Object;
+          t2 = A.List_List$of(t4, true, t5);
+          t4 = t3._contents;
+          if (t4.length !== 0)
+            t2.push(t4.charCodeAt(0) == 0 ? t4 : t4);
+          result = A.List_List$from(t2, false, t5);
+          result.fixed$length = Array;
+          result.immutable$list = Array;
+          t3 = new A.Interpolation0(result, t1);
+          t3.Interpolation$20(t2, t1);
+          return t3;
+        }
+        break;
+      }
+      t1.set$state(new A._SpanScannerState(t1, t2));
+      return null;
+    },
+    _stylesheet0$_tryUrlContents$1(start) {
+      return this._stylesheet0$_tryUrlContents$2$name(start, null);
+    },
+    dynamicUrl$0() {
+      var _0_0, _this = this,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _this.expectIdentifier$1("url");
+      _0_0 = _this._stylesheet0$_tryUrlContents$1(start);
+      if (_0_0 != null)
+        return new A.StringExpression0(_0_0, false);
+      return new A.InterpolatedFunctionExpression0(A.Interpolation$0(A._setArrayType(["url"], type$.JSArray_Object), t1.spanFrom$1(start)), _this._stylesheet0$_argumentInvocation$0(), t1.spanFrom$1(start));
+    },
+    almostAnyValue$1$omitComments(omitComments) {
+      var t4, t5, t6, _1_0, t7, commentStart, end, _0_0, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer0(t3, A._setArrayType([], type$.JSArray_Object));
+      for (t4 = t1.string, t5 = t4.length, t6 = !omitComments; true;)
+        $label0$0: {
+          _1_0 = t1.peekChar$0();
+          if (92 === _1_0) {
+            t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t7;
+            t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t7;
+            break $label0$0;
+          }
+          if (34 === _1_0 || 39 === _1_0) {
+            buffer.addInterpolation$1(_this.interpolatedString$0().asInterpolation$0());
+            break $label0$0;
+          }
+          if (47 === _1_0) {
+            commentStart = t1._string_scanner$_position;
+            if (_this.scanComment$0()) {
+              if (t6) {
+                end = t1._string_scanner$_position;
+                t3._contents += B.JSString_methods.substring$2(t4, commentStart, end);
+              }
+            } else {
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+            }
+            break $label0$0;
+          }
+          if (35 === _1_0 && t1.peekChar$1(1) === 123) {
+            buffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+            break $label0$0;
+          }
+          if (13 === _1_0 || 10 === _1_0 || 12 === _1_0) {
+            if (_this.get$indented())
+              break;
+            t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t7;
+            break $label0$0;
+          }
+          if (33 === _1_0 || 59 === _1_0 || 123 === _1_0 || 125 === _1_0)
+            break;
+          if (117 === _1_0 || 85 === _1_0) {
+            t7 = t1._string_scanner$_position;
+            if (!_this.scanIdentifier$1("url")) {
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+              continue;
+            }
+            _0_0 = _this._stylesheet0$_tryUrlContents$1(new A._SpanScannerState(t1, t7));
+            if (_0_0 != null)
+              buffer.addInterpolation$1(_0_0);
+            else {
+              if ((t7 === 0 ? 1 / t7 < 0 : t7 < 0) || t7 > t5)
+                A.throwExpression(A.ArgumentError$("Invalid position " + t7, null));
+              t1._string_scanner$_position = t7;
+              t1._lastMatch = null;
+              t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t7;
+            }
+            break $label0$0;
+          }
+          if (_1_0 == null)
+            break;
+          t7 = _this.lookingAtIdentifier$0();
+          if (t7) {
+            t7 = _this.identifier$0();
+            t3._contents += t7;
+            break $label0$0;
+          }
+          t7 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t7;
+        }
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    almostAnyValue$0() {
+      return this.almostAnyValue$1$omitComments(false);
+    },
+    _stylesheet0$_interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(allowColon, allowEmpty, allowSemicolon) {
+      var t4, t5, t6, t7, wroteNewline, _1_0, t8, start, end, _1_14_isSet, _1_14, _1_18_isSet, _1_18, _1_20_isSet, _1_20, bracket, _0_0, _this = this, _null = null,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer0(t3, A._setArrayType([], type$.JSArray_Object)),
+        brackets = A._setArrayType([], type$.JSArray_int);
+      for (t4 = t1.string, t5 = t4.length, t6 = !allowColon, t7 = !allowSemicolon, wroteNewline = false; true;)
+        $label0$0: {
+          _1_0 = t1.peekChar$0();
+          if (92 === _1_0) {
+            t8 = _this.escape$1$identifierStart(true);
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (34 === _1_0 || 39 === _1_0) {
+            buffer.addInterpolation$1(_this.interpolatedString$0().asInterpolation$0());
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (47 === _1_0 && t1.peekChar$1(1) === 42) {
+            t8 = _this.get$loudComment();
+            start = t1._string_scanner$_position;
+            t8.call$0();
+            end = t1._string_scanner$_position;
+            t3._contents += B.JSString_methods.substring$2(t4, start, end);
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (35 === _1_0 && t1.peekChar$1(1) === 123) {
+            buffer.addInterpolation$1(_this.interpolatedIdentifier$0());
+            wroteNewline = false;
+            break $label0$0;
+          }
+          _1_14_isSet = 32 !== _1_0;
+          if (_1_14_isSet) {
+            _1_14 = 9 === _1_0;
+            t8 = _1_14;
+          } else {
+            _1_14 = _null;
+            t8 = true;
+          }
+          if (t8)
+            if (!wroteNewline) {
+              t8 = t1.peekChar$1(1);
+              t8 = t8 === 32 || t8 === 9 || t8 === 10 || t8 === 13 || t8 === 12;
+            } else
+              t8 = false;
+          else
+            t8 = false;
+          if (t8) {
+            t1.readChar$0();
+            break $label0$0;
+          }
+          if (_1_14_isSet)
+            t8 = _1_14;
+          else
+            t8 = true;
+          if (t8) {
+            t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t8;
+            break $label0$0;
+          }
+          _1_18_isSet = 10 !== _1_0;
+          if (_1_18_isSet) {
+            _1_18 = 13 === _1_0;
+            _1_20_isSet = !_1_18;
+            if (_1_20_isSet) {
+              _1_20 = 12 === _1_0;
+              t8 = _1_20;
+            } else {
+              _1_20 = _null;
+              t8 = true;
+            }
+          } else {
+            _1_20 = _null;
+            _1_18 = _1_20;
+            _1_20_isSet = false;
+            t8 = true;
+          }
+          if (t8 && _this.get$indented())
+            break;
+          if (_1_18_isSet)
+            if (!_1_18)
+              t8 = _1_20_isSet ? _1_20 : 12 === _1_0;
+            else
+              t8 = true;
+          else
+            t8 = true;
+          if (t8) {
+            t8 = t1.peekChar$1(-1);
+            if (!(t8 === 10 || t8 === 13 || t8 === 12))
+              t3._contents += "\n";
+            t1.readChar$0();
+            wroteNewline = true;
+            break $label0$0;
+          }
+          if (40 === _1_0 || 123 === _1_0 || 91 === _1_0) {
+            bracket = t1.readChar$0();
+            t8 = A.Primitives_stringFromCharCode(bracket);
+            t3._contents += t8;
+            brackets.push(A.opposite0(bracket));
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (41 === _1_0 || 125 === _1_0 || 93 === _1_0) {
+            if (brackets.length === 0)
+              break;
+            bracket = brackets.pop();
+            t1.expectChar$1(bracket);
+            t8 = A.Primitives_stringFromCharCode(bracket);
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (59 === _1_0) {
+            if (t7 && brackets.length === 0)
+              break;
+            t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (58 === _1_0) {
+            if (t6 && brackets.length === 0)
+              break;
+            t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (117 === _1_0 || 85 === _1_0) {
+            t8 = t1._string_scanner$_position;
+            if (!_this.scanIdentifier$1("url")) {
+              t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t8;
+              wroteNewline = false;
+              continue;
+            }
+            _0_0 = _this._stylesheet0$_tryUrlContents$1(new A._SpanScannerState(t1, t8));
+            if (_0_0 != null)
+              buffer.addInterpolation$1(_0_0);
+            else {
+              if ((t8 === 0 ? 1 / t8 < 0 : t8 < 0) || t8 > t5)
+                A.throwExpression(A.ArgumentError$("Invalid position " + t8, _null));
+              t1._string_scanner$_position = t8;
+              t1._lastMatch = null;
+              t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+              t3._contents += t8;
+            }
+            wroteNewline = false;
+            break $label0$0;
+          }
+          if (_1_0 == null)
+            break;
+          t8 = _this.lookingAtIdentifier$0();
+          if (t8) {
+            t8 = _this.identifier$0();
+            t3._contents += t8;
+            wroteNewline = false;
+            break $label0$0;
+          }
+          t8 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t3._contents += t8;
+          wroteNewline = false;
+        }
+      if (brackets.length !== 0)
+        t1.expectChar$1(B.JSArray_methods.get$last(brackets));
+      if (!allowEmpty && buffer._interpolation_buffer0$_contents.length === 0 && t3._contents.length === 0)
+        t1.error$1(0, "Expected token.");
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _stylesheet0$_interpolatedDeclarationValue$1$allowEmpty(allowEmpty) {
+      return this._stylesheet0$_interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(true, allowEmpty, false);
+    },
+    _stylesheet0$_interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(allowEmpty, allowSemicolon) {
+      return this._stylesheet0$_interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(true, allowEmpty, allowSemicolon);
+    },
+    _stylesheet0$_interpolatedDeclarationValue$0() {
+      return this._stylesheet0$_interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(true, false, false);
+    },
+    interpolatedIdentifier$0() {
+      var t4, _0_0, _this = this,
+        _s20_ = "Expected identifier.",
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        t2 = new A.StringBuffer(""),
+        t3 = A._setArrayType([], type$.JSArray_Object),
+        buffer = new A.InterpolationBuffer0(t2, t3);
+      if (t1.scanChar$1(45)) {
+        t4 = A.Primitives_stringFromCharCode(45);
+        t2._contents += t4;
+        if (t1.scanChar$1(45)) {
+          t3 = A.Primitives_stringFromCharCode(45);
+          t2._contents += t3;
+          _this._stylesheet0$_interpolatedIdentifierBody$1(buffer);
+          return buffer.interpolation$1(t1.spanFrom$1(start));
+        }
+      }
+      $label0$0: {
+        _0_0 = t1.peekChar$0();
+        if (_0_0 == null)
+          t1.error$1(0, _s20_);
+        if (_0_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_0_0) || _0_0 >= 128) {
+          t3 = A.Primitives_stringFromCharCode(t1.readChar$0());
+          t2._contents += t3;
+          break $label0$0;
+        }
+        if (92 === _0_0) {
+          t3 = _this.escape$1$identifierStart(true);
+          t2._contents += t3;
+          break $label0$0;
+        }
+        if (35 === _0_0 && t1.peekChar$1(1) === 123) {
+          t2 = _this.singleInterpolation$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t3.push(t2);
+          break $label0$0;
+        }
+        t1.error$1(0, _s20_);
+      }
+      _this._stylesheet0$_interpolatedIdentifierBody$1(buffer);
+      return buffer.interpolation$1(t1.spanFrom$1(start));
+    },
+    _stylesheet0$_interpolatedIdentifierBody$1(buffer) {
+      var t1, t2, t3, _0_0, t4;
+      for (t1 = buffer._interpolation_buffer0$_contents, t2 = this.scanner, t3 = buffer._interpolation_buffer0$_text; true;) {
+        _0_0 = t2.peekChar$0();
+        if (_0_0 == null)
+          break;
+        if (95 !== _0_0)
+          if (45 !== _0_0) {
+            if (!(_0_0 >= 97 && _0_0 <= 122))
+              t4 = _0_0 >= 65 && _0_0 <= 90;
+            else
+              t4 = true;
+            if (!t4)
+              t4 = _0_0 >= 48 && _0_0 <= 57;
+            else
+              t4 = true;
+            t4 = t4 || _0_0 >= 128;
+          } else
+            t4 = true;
+        else
+          t4 = true;
+        if (t4) {
+          t4 = A.Primitives_stringFromCharCode(t2.readChar$0());
+          t3._contents += t4;
+          continue;
+        }
+        if (92 === _0_0) {
+          t4 = this.escape$0();
+          t3._contents += t4;
+          continue;
+        }
+        if (35 === _0_0 && t2.peekChar$1(1) === 123) {
+          t4 = this.singleInterpolation$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t1.push(t4);
+          continue;
+        }
+        break;
+      }
+    },
+    singleInterpolation$0() {
+      var contents, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      t1.expect$1("#{");
+      _this.whitespace$0();
+      contents = _this._stylesheet0$_expression$0();
+      t1.expectChar$1(125);
+      if (_this.get$plainCss())
+        _this.error$2(0, string$.Interpp, t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      return contents;
+    },
+    _stylesheet0$_mediaQueryList$0() {
+      var t4, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        t3 = new A.StringBuffer(""),
+        buffer = new A.InterpolationBuffer0(t3, A._setArrayType([], type$.JSArray_Object));
+      for (; true;) {
+        _this.whitespace$0();
+        _this._stylesheet0$_mediaQuery$1(buffer);
+        _this.whitespace$0();
+        if (!t1.scanChar$1(44))
+          break;
+        t4 = A.Primitives_stringFromCharCode(44);
+        t3._contents += t4;
+        t4 = A.Primitives_stringFromCharCode(32);
+        t3._contents += t4;
+      }
+      return buffer.interpolation$1(t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+    },
+    _stylesheet0$_mediaQuery$1(buffer) {
+      var identifier1, t1, t2, identifier2, _this = this, _s3_ = "and";
+      if (_this.scanner.peekChar$0() === 40) {
+        _this._stylesheet0$_mediaInParens$1(buffer);
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1(_s3_)) {
+          buffer._interpolation_buffer0$_text._contents += " and ";
+          _this.expectWhitespace$0();
+          _this._stylesheet0$_mediaLogicSequence$2(buffer, _s3_);
+        } else if (_this.scanIdentifier$1("or")) {
+          buffer._interpolation_buffer0$_text._contents += " or ";
+          _this.expectWhitespace$0();
+          _this._stylesheet0$_mediaLogicSequence$2(buffer, "or");
+        }
+        return;
+      }
+      identifier1 = _this.interpolatedIdentifier$0();
+      if (A.equalsIgnoreCase0(identifier1.get$asPlain(), "not")) {
+        _this.expectWhitespace$0();
+        if (!_this._stylesheet0$_lookingAtInterpolatedIdentifier$0()) {
+          buffer._interpolation_buffer0$_text._contents += "not ";
+          _this._stylesheet0$_mediaOrInterp$1(buffer);
+          return;
+        }
+      }
+      _this.whitespace$0();
+      buffer.addInterpolation$1(identifier1);
+      if (!_this._stylesheet0$_lookingAtInterpolatedIdentifier$0())
+        return;
+      t1 = buffer._interpolation_buffer0$_text;
+      t2 = A.Primitives_stringFromCharCode(32);
+      t1._contents += t2;
+      identifier2 = _this.interpolatedIdentifier$0();
+      if (A.equalsIgnoreCase0(identifier2.get$asPlain(), _s3_)) {
+        _this.expectWhitespace$0();
+        t1._contents += " and ";
+      } else {
+        _this.whitespace$0();
+        buffer.addInterpolation$1(identifier2);
+        if (_this.scanIdentifier$1(_s3_)) {
+          _this.expectWhitespace$0();
+          t1._contents += " and ";
+        } else
+          return;
+      }
+      if (_this.scanIdentifier$1("not")) {
+        _this.expectWhitespace$0();
+        t1._contents += "not ";
+        _this._stylesheet0$_mediaOrInterp$1(buffer);
+        return;
+      }
+      _this._stylesheet0$_mediaLogicSequence$2(buffer, _s3_);
+      return;
+    },
+    _stylesheet0$_mediaLogicSequence$2(buffer, operator) {
+      var t1, t2, _this = this;
+      for (t1 = buffer._interpolation_buffer0$_text; true;) {
+        _this._stylesheet0$_mediaOrInterp$1(buffer);
+        _this.whitespace$0();
+        if (!_this.scanIdentifier$1(operator))
+          return;
+        _this.expectWhitespace$0();
+        t2 = A.Primitives_stringFromCharCode(32);
+        t2 = t1._contents += t2;
+        t1._contents = t2 + operator;
+        t2 = A.Primitives_stringFromCharCode(32);
+        t1._contents += t2;
+      }
+    },
+    _stylesheet0$_mediaOrInterp$1(buffer) {
+      var interpolation;
+      if (this.scanner.peekChar$0() === 35) {
+        interpolation = this.singleInterpolation$0();
+        buffer.addInterpolation$1(A.Interpolation$0(A._setArrayType([interpolation], type$.JSArray_Object), interpolation.get$span(interpolation)));
+      } else
+        this._stylesheet0$_mediaInParens$1(buffer);
+    },
+    _stylesheet0$_mediaInParens$1(buffer) {
+      var t2, t3, t4, next, t5, _this = this,
+        t1 = _this.scanner;
+      t1.expectChar$2$name(40, "media condition in parentheses");
+      t2 = buffer._interpolation_buffer0$_text;
+      t3 = A.Primitives_stringFromCharCode(40);
+      t2._contents += t3;
+      _this.whitespace$0();
+      if (t1.peekChar$0() === 40) {
+        _this._stylesheet0$_mediaInParens$1(buffer);
+        _this.whitespace$0();
+        if (_this.scanIdentifier$1("and")) {
+          t2._contents += " and ";
+          _this.expectWhitespace$0();
+          _this._stylesheet0$_mediaLogicSequence$2(buffer, "and");
+        } else if (_this.scanIdentifier$1("or")) {
+          t2._contents += " or ";
+          _this.expectWhitespace$0();
+          _this._stylesheet0$_mediaLogicSequence$2(buffer, "or");
+        }
+      } else if (_this.scanIdentifier$1("not")) {
+        t2._contents += "not ";
+        _this.expectWhitespace$0();
+        _this._stylesheet0$_mediaOrInterp$1(buffer);
+      } else {
+        t3 = _this._stylesheet0$_expressionUntilComparison$0();
+        buffer._interpolation_buffer0$_flushText$0();
+        t4 = buffer._interpolation_buffer0$_contents;
+        t4.push(t3);
+        if (t1.scanChar$1(58)) {
+          _this.whitespace$0();
+          t3 = A.Primitives_stringFromCharCode(58);
+          t2._contents += t3;
+          t3 = A.Primitives_stringFromCharCode(32);
+          t2._contents += t3;
+          t3 = _this._stylesheet0$_expression$0();
+          buffer._interpolation_buffer0$_flushText$0();
+          t4.push(t3);
+        } else {
+          next = t1.peekChar$0();
+          t3 = 60 !== next;
+          if (!t3 || 62 === next || 61 === next) {
+            t5 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t5;
+            t5 = A.Primitives_stringFromCharCode(t1.readChar$0());
+            t2._contents += t5;
+            if ((!t3 || 62 === next) && t1.scanChar$1(61)) {
+              t5 = A.Primitives_stringFromCharCode(61);
+              t2._contents += t5;
+            }
+            t5 = A.Primitives_stringFromCharCode(32);
+            t2._contents += t5;
+            _this.whitespace$0();
+            t5 = _this._stylesheet0$_expressionUntilComparison$0();
+            buffer._interpolation_buffer0$_flushText$0();
+            t4.push(t5);
+            if (!t3 || 62 === next) {
+              next.toString;
+              t3 = t1.scanChar$1(next);
+            } else
+              t3 = false;
+            if (t3) {
+              t3 = A.Primitives_stringFromCharCode(32);
+              t2._contents += t3;
+              t3 = A.Primitives_stringFromCharCode(next);
+              t2._contents += t3;
+              if (t1.scanChar$1(61)) {
+                t3 = A.Primitives_stringFromCharCode(61);
+                t2._contents += t3;
+              }
+              t3 = A.Primitives_stringFromCharCode(32);
+              t2._contents += t3;
+              _this.whitespace$0();
+              t3 = _this._stylesheet0$_expressionUntilComparison$0();
+              buffer._interpolation_buffer0$_flushText$0();
+              t4.push(t3);
+            }
+          }
+        }
+      }
+      t1.expectChar$1(41);
+      _this.whitespace$0();
+      t1 = A.Primitives_stringFromCharCode(41);
+      t2._contents += t1;
+    },
+    _stylesheet0$_expressionUntilComparison$0() {
+      return this._stylesheet0$_expression$1$until(new A.StylesheetParser__expressionUntilComparison_closure0(this));
+    },
+    _stylesheet0$_supportsCondition$0() {
+      var condition, operator, right, endPosition, t3, t4, lowerOperator, _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position;
+      if (_this.scanIdentifier$1("not")) {
+        _this.whitespace$0();
+        return new A.SupportsNegation0(_this._stylesheet0$_supportsConditionInParens$0(), t1.spanFrom$1(new A._SpanScannerState(t1, t2)));
+      }
+      condition = _this._stylesheet0$_supportsConditionInParens$0();
+      _this.whitespace$0();
+      for (operator = null; _this.lookingAtIdentifier$0();) {
+        if (operator != null)
+          _this.expectIdentifier$1(operator);
+        else if (_this.scanIdentifier$1("or"))
+          operator = "or";
+        else {
+          _this.expectIdentifier$1("and");
+          operator = "and";
+        }
+        _this.whitespace$0();
+        right = _this._stylesheet0$_supportsConditionInParens$0();
+        endPosition = t1._string_scanner$_position;
+        t3 = t1._sourceFile;
+        t4 = new A._FileSpan(t3, t2, endPosition);
+        t4._FileSpan$3(t3, t2, endPosition);
+        condition = new A.SupportsOperation0(condition, right, operator, t4);
+        lowerOperator = operator.toLowerCase();
+        if (lowerOperator !== "and" && lowerOperator !== "or")
+          A.throwExpression(A.ArgumentError$value(operator, "operator", 'may only be "and" or "or".'));
+        _this.whitespace$0();
+      }
+      return condition;
+    },
+    _stylesheet0$_supportsConditionInParens$0() {
+      var $name, nameStart, wasInParentheses, identifier, _1_0, operation, contents, identifier0, t2, $arguments, _0_0, _0_4_isSet, _0_4, condition, exception, declaration, _this = this, _null = null,
+        t1 = _this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      if (_this._stylesheet0$_lookingAtInterpolatedIdentifier$0()) {
+        identifier0 = _this.interpolatedIdentifier$0();
+        t2 = identifier0.get$asPlain();
+        if ((t2 == null ? _null : t2.toLowerCase()) === "not")
+          _this.error$2(0, '"not" is not a valid identifier here.', identifier0.span);
+        if (t1.scanChar$1(40)) {
+          $arguments = _this._stylesheet0$_interpolatedDeclarationValue$2$allowEmpty$allowSemicolon(true, true);
+          t1.expectChar$1(41);
+          return new A.SupportsFunction0(identifier0, $arguments, t1.spanFrom$1(start));
+        } else {
+          _0_0 = identifier0.contents;
+          _0_4_isSet = _0_0.length === 1;
+          if (_0_4_isSet) {
+            _0_4 = _0_0[0];
+            t2 = _0_4;
+            t2 = type$.Expression_2._is(t2);
+          } else {
+            _0_4 = _null;
+            t2 = false;
+          }
+          if (t2) {
+            t2 = _0_4_isSet ? _0_4 : _0_0[0];
+            return new A.SupportsInterpolation0(type$.Expression_2._as(t2), t1.spanFrom$1(start));
+          } else
+            _this.error$2(0, "Expected @supports condition.", identifier0.span);
+        }
+      }
+      t1.expectChar$1(40);
+      _this.whitespace$0();
+      if (_this.scanIdentifier$1("not")) {
+        _this.whitespace$0();
+        condition = _this._stylesheet0$_supportsConditionInParens$0();
+        t1.expectChar$1(41);
+        return new A.SupportsNegation0(condition, t1.spanFrom$1(start));
+      } else if (t1.peekChar$0() === 40) {
+        condition = _this._stylesheet0$_supportsCondition$0();
+        t1.expectChar$1(41);
+        return condition;
+      }
+      $name = null;
+      nameStart = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      wasInParentheses = _this._stylesheet0$_inParentheses;
+      try {
+        $name = _this._stylesheet0$_expression$0();
+        t1.expectChar$1(58);
+      } catch (exception) {
+        if (type$.FormatException._is(A.unwrapException(exception))) {
+          t1.set$state(nameStart);
+          _this._stylesheet0$_inParentheses = wasInParentheses;
+          identifier = _this.interpolatedIdentifier$0();
+          _1_0 = _this._stylesheet0$_trySupportsOperation$2(identifier, nameStart);
+          operation = null;
+          if (_1_0 != null) {
+            operation = _1_0;
+            t1.expectChar$1(41);
+            return operation;
+          }
+          t2 = new A.InterpolationBuffer0(new A.StringBuffer(""), A._setArrayType([], type$.JSArray_Object));
+          t2.addInterpolation$1(identifier);
+          t2.addInterpolation$1(_this._stylesheet0$_interpolatedDeclarationValue$3$allowColon$allowEmpty$allowSemicolon(false, true, true));
+          contents = t2.interpolation$1(t1.spanFrom$1(nameStart));
+          if (t1.peekChar$0() === 58)
+            throw exception;
+          t1.expectChar$1(41);
+          return new A.SupportsAnything0(contents, t1.spanFrom$1(start));
+        } else
+          throw exception;
+      }
+      declaration = _this._stylesheet0$_supportsDeclarationValue$2($name, start);
+      t1.expectChar$1(41);
+      return declaration;
+    },
+    _stylesheet0$_supportsDeclarationValue$2($name, start) {
+      var t1, value, _this = this;
+      if ($name instanceof A.StringExpression0)
+        if (!$name.hasQuotes)
+          t1 = B.JSString_methods.startsWith$1($name.text.get$initialPlain(), "--");
+        else
+          t1 = false;
+      else
+        t1 = false;
+      if (t1)
+        value = new A.StringExpression0(_this._stylesheet0$_interpolatedDeclarationValue$0(), false);
+      else {
+        _this.whitespace$0();
+        value = _this._stylesheet0$_expression$0();
+      }
+      return new A.SupportsDeclaration0($name, value, _this.scanner.spanFrom$1(start));
+    },
+    _stylesheet0$_trySupportsOperation$2(interpolation, start) {
+      var expression, beforeWhitespace, t2, t3, operator, operation, right, t4, endPosition, t5, t6, lowerOperator, _this = this, _null = null,
+        t1 = interpolation.contents;
+      if (t1.length !== 1)
+        return _null;
+      expression = B.JSArray_methods.get$first(t1);
+      if (!type$.Expression_2._is(expression))
+        return _null;
+      t1 = _this.scanner;
+      beforeWhitespace = new A._SpanScannerState(t1, t1._string_scanner$_position);
+      _this.whitespace$0();
+      for (t2 = start.position, t3 = interpolation.span, operator = _null, operation = operator; _this.lookingAtIdentifier$0();) {
+        if (operator != null)
+          _this.expectIdentifier$1(operator);
+        else if (_this.scanIdentifier$1("and"))
+          operator = "and";
+        else {
+          if (!_this.scanIdentifier$1("or")) {
+            if (beforeWhitespace._scanner !== t1)
+              A.throwExpression(A.ArgumentError$(string$.The_gi, _null));
+            t2 = beforeWhitespace.position;
+            if ((t2 === 0 ? 1 / t2 < 0 : t2 < 0) || t2 > t1.string.length)
+              A.throwExpression(A.ArgumentError$("Invalid position " + t2, _null));
+            t1._string_scanner$_position = t2;
+            return t1._lastMatch = null;
+          }
+          operator = "or";
+        }
+        _this.whitespace$0();
+        right = _this._stylesheet0$_supportsConditionInParens$0();
+        t4 = operation == null ? new A.SupportsInterpolation0(expression, t3) : operation;
+        endPosition = t1._string_scanner$_position;
+        t5 = t1._sourceFile;
+        t6 = new A._FileSpan(t5, t2, endPosition);
+        t6._FileSpan$3(t5, t2, endPosition);
+        operation = new A.SupportsOperation0(t4, right, operator, t6);
+        lowerOperator = operator.toLowerCase();
+        if (lowerOperator !== "and" && lowerOperator !== "or")
+          A.throwExpression(A.ArgumentError$value(operator, "operator", 'may only be "and" or "or".'));
+        _this.whitespace$0();
+      }
+      return operation;
+    },
+    _stylesheet0$_lookingAtInterpolatedIdentifier$0() {
+      var _0_0,
+        t1 = this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_1_0 == null) {
+          t1 = false;
+          break $label0$0;
+        }
+        if (_1_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_1_0) || _1_0 >= 128 || 92 === _1_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (35 === _1_0) {
+          t1 = t1.peekChar$1(1) === 123;
+          break $label0$0;
+        }
+        if (45 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label1$1: {
+            if (_0_0 == null) {
+              t1 = false;
+              break $label1$1;
+            }
+            if (35 === _0_0) {
+              t1 = t1.peekChar$1(2) === 123;
+              break $label1$1;
+            }
+            if (_0_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_0_0) || _0_0 >= 128 || 92 === _0_0 || 45 === _0_0) {
+              t1 = true;
+              break $label1$1;
+            }
+            t1 = false;
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _stylesheet0$_lookingAtPotentialPropertyHack$0() {
+      var t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (58 === _0_0 || 42 === _0_0 || 46 === _0_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (35 === _0_0) {
+          t1 = t1.peekChar$1(1) !== 123;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _stylesheet0$_lookingAtInterpolatedIdentifierBody$0() {
+      var t2,
+        t1 = this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_0_0 == null) {
+          t1 = false;
+          break $label0$0;
+        }
+        if (!(_0_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_0_0) || _0_0 >= 128))
+          t2 = _0_0 >= 48 && _0_0 <= 57 || _0_0 === 45;
+        else
+          t2 = true;
+        if (t2 || 92 === _0_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        if (35 === _0_0) {
+          t1 = t1.peekChar$1(1) === 123;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _stylesheet0$_lookingAtExpression$0() {
+      var _0_0,
+        t1 = this.scanner,
+        _1_0 = t1.peekChar$0();
+      $label0$0: {
+        if (_1_0 == null) {
+          t1 = false;
+          break $label0$0;
+        }
+        if (46 === _1_0) {
+          t1 = t1.peekChar$1(1) !== 46;
+          break $label0$0;
+        }
+        if (33 === _1_0) {
+          _0_0 = t1.peekChar$1(1);
+          $label1$1: {
+            if (_0_0 != null)
+              if (105 !== _0_0)
+                if (73 !== _0_0)
+                  t1 = _0_0 === 32 || _0_0 === 9 || _0_0 === 10 || _0_0 === 13 || _0_0 === 12;
+                else
+                  t1 = true;
+              else
+                t1 = true;
+            else
+              t1 = true;
+            if (t1)
+              break $label1$1;
+            break $label1$1;
+          }
+          break $label0$0;
+        }
+        if (40 !== _1_0)
+          if (47 !== _1_0)
+            if (91 !== _1_0)
+              if (39 !== _1_0)
+                if (34 !== _1_0)
+                  if (35 !== _1_0)
+                    if (43 !== _1_0)
+                      if (45 !== _1_0)
+                        if (92 !== _1_0)
+                          if (36 !== _1_0)
+                            if (38 !== _1_0)
+                              if (!(_1_0 === 95 || A.CharacterExtension_get_isAlphabetic0(_1_0) || _1_0 >= 128))
+                                t1 = _1_0 >= 48 && _1_0 <= 57;
+                              else
+                                t1 = true;
+                            else
+                              t1 = true;
+                          else
+                            t1 = true;
+                        else
+                          t1 = true;
+                      else
+                        t1 = true;
+                    else
+                      t1 = true;
+                  else
+                    t1 = true;
+                else
+                  t1 = true;
+              else
+                t1 = true;
+            else
+              t1 = true;
+          else
+            t1 = true;
+        else
+          t1 = true;
+        if (t1) {
+          t1 = true;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    _stylesheet0$_withChildren$1$3(child, start, create) {
+      var result = create.call$2(this.children$1(0, child), this.scanner.spanFrom$1(start));
+      this.whitespaceWithoutComments$0();
+      return result;
+    },
+    _stylesheet0$_withChildren$3(child, start, create) {
+      return this._stylesheet0$_withChildren$1$3(child, start, create, type$.dynamic);
+    },
+    _stylesheet0$_urlString$0() {
+      var innerError, stackTrace, t2, exception,
+        t1 = this.scanner,
+        start = new A._SpanScannerState(t1, t1._string_scanner$_position),
+        url = this.string$0();
+      try {
+        t2 = A.Uri_parse(url);
+        return t2;
+      } catch (exception) {
+        t2 = A.unwrapException(exception);
+        if (type$.FormatException._is(t2)) {
+          innerError = t2;
+          stackTrace = A.getTraceFromException(exception);
+          this.error$3(0, "Invalid URL: " + J.get$message$x(innerError), t1.spanFrom$1(start), stackTrace);
+        } else
+          throw exception;
+      }
+    },
+    _stylesheet0$_publicIdentifier$0() {
+      var _this = this,
+        t1 = _this.scanner,
+        t2 = t1._string_scanner$_position,
+        result = _this.identifier$0();
+      _this._stylesheet0$_assertPublic$2(result, new A.StylesheetParser__publicIdentifier_closure0(_this, new A._SpanScannerState(t1, t2)));
+      return result;
+    },
+    _stylesheet0$_assertPublic$2(identifier, span) {
+      var first = identifier.charCodeAt(0);
+      if (!(first === 45 || first === 95))
+        return;
+      this.error$2(0, string$.Privat, span.call$0());
+    },
+    get$plainCss() {
+      return false;
+    }
+  };
+  A.StylesheetParser_parse_closure0.prototype = {
+    call$0() {
+      var statements, t4,
+        t1 = this.$this,
+        t2 = t1.scanner,
+        t3 = t2._string_scanner$_position;
+      t2.scanChar$1(65279);
+      statements = t1.statements$1(new A.StylesheetParser_parse__closure1(t1));
+      t2.expectDone$0();
+      t4 = t1._stylesheet0$_globalVariables.get$values(0);
+      B.JSArray_methods.addAll$1(statements, A.MappedIterable_MappedIterable(t4, new A.StylesheetParser_parse__closure2(), A._instanceType(t4)._eval$1("Iterable.E"), type$.Statement_2));
+      return A.Stylesheet$internal0(statements, t2.spanFrom$1(new A._SpanScannerState(t2, t3)), t1.get$plainCss());
+    },
+    $signature: 554
+  };
+  A.StylesheetParser_parse__closure1.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      if (t1.scanner.scan$1("@charset")) {
+        t1.whitespace$0();
+        t1.string$0();
+        return null;
+      }
+      return t1._stylesheet0$_statement$1$root(true);
+    },
+    $signature: 555
+  };
+  A.StylesheetParser_parse__closure2.prototype = {
+    call$1(declaration) {
+      var t1 = declaration.expression;
+      return A.VariableDeclaration$0(declaration.name, new A.NullExpression0(t1.get$span(t1)), declaration.span, null, false, true, null);
+    },
+    $signature: 556
+  };
+  A.StylesheetParser_parseArgumentDeclaration_closure0.prototype = {
+    call$0() {
+      var $arguments,
+        t1 = this.$this,
+        t2 = t1.scanner;
+      t2.expectChar$2$name(64, "@-rule");
+      t1.identifier$0();
+      t1.whitespace$0();
+      t1.identifier$0();
+      $arguments = t1._stylesheet0$_argumentDeclaration$0();
+      t1.whitespace$0();
+      t2.expectChar$1(123);
+      return $arguments;
+    },
+    $signature: 557
+  };
+  A.StylesheetParser__parseSingleProduction_closure0.prototype = {
+    call$0() {
+      var result = this.production.call$0();
+      this.$this.scanner.expectDone$0();
+      return result;
+    },
+    $signature() {
+      return this.T._eval$1("0()");
+    }
+  };
+  A.StylesheetParser_parseSignature_closure.prototype = {
+    call$0() {
+      var $arguments, t2, t3,
+        t1 = this.$this,
+        $name = t1.identifier$0();
+      if (this.requireParens || t1.scanner.peekChar$0() === 40)
+        $arguments = t1._stylesheet0$_argumentDeclaration$0();
+      else {
+        t2 = t1.scanner;
+        t2 = A.FileLocation$_(t2._sourceFile, t2._string_scanner$_position);
+        t3 = t2.offset;
+        $arguments = new A.ArgumentDeclaration0(B.List_empty22, null, A._FileSpan$(t2.file, t3, t3));
+      }
+      t1.scanner.expectDone$0();
+      return new A._Record_2($name, $arguments);
+    },
+    $signature: 558
+  };
+  A.StylesheetParser__statement_closure0.prototype = {
+    call$0() {
+      return this.$this._stylesheet0$_statement$0();
+    },
+    $signature: 132
+  };
+  A.StylesheetParser_variableDeclarationWithoutNamespace_closure1.prototype = {
+    call$0() {
+      return this.$this.scanner.spanFrom$1(this.start);
+    },
+    $signature: 26
+  };
+  A.StylesheetParser_variableDeclarationWithoutNamespace_closure2.prototype = {
+    call$0() {
+      return this.declaration;
+    },
+    $signature: 559
+  };
+  A.StylesheetParser__styleRule_closure0.prototype = {
+    call$2(children, span) {
+      var _this = this,
+        t1 = _this.$this;
+      if (t1.get$indented() && children.length === 0)
+        t1.logger.warn$2$span(0, string$.This_s, _this._box_0.interpolation.span);
+      t1._stylesheet0$_inStyleRule = _this.wasInStyleRule;
+      return A.StyleRule$0(_this._box_0.interpolation, children, t1.scanner.spanFrom$1(_this.start));
+    },
+    $signature: 560
+  };
+  A.StylesheetParser__tryDeclarationChildren_closure0.prototype = {
+    call$2(children, span) {
+      return A.Declaration$nested0(this.name, children, span, this.value);
+    },
+    $signature: 561
+  };
+  A.StylesheetParser__atRootRule_closure1.prototype = {
+    call$2(children, span) {
+      return A.AtRootRule$0(children, span, this.query);
+    },
+    $signature: 208
+  };
+  A.StylesheetParser__atRootRule_closure2.prototype = {
+    call$2(children, span) {
+      return A.AtRootRule$0(children, span, null);
+    },
+    $signature: 208
+  };
+  A.StylesheetParser__eachRule_closure0.prototype = {
+    call$2(children, span) {
+      var _this = this;
+      _this.$this._stylesheet0$_inControlDirective = _this.wasInControlDirective;
+      return A.EachRule$0(_this.variables, _this.list, children, span);
+    },
+    $signature: 563
+  };
+  A.StylesheetParser__functionRule_closure0.prototype = {
+    call$2(children, span) {
+      return A.FunctionRule$0(this.name, this.$arguments, children, span, this.precedingComment);
+    },
+    $signature: 564
+  };
+  A.StylesheetParser__forRule_closure1.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      if (!t1.lookingAtIdentifier$0())
+        return false;
+      if (t1.scanIdentifier$1("to"))
+        return this._box_0.exclusive = true;
+      else if (t1.scanIdentifier$1("through")) {
+        this._box_0.exclusive = false;
+        return true;
+      } else
+        return false;
+    },
+    $signature: 30
+  };
+  A.StylesheetParser__forRule_closure2.prototype = {
+    call$2(children, span) {
+      var t1, _this = this;
+      _this.$this._stylesheet0$_inControlDirective = _this.wasInControlDirective;
+      t1 = _this._box_0.exclusive;
+      t1.toString;
+      return A.ForRule$0(_this.variable, _this.from, _this.to, children, span, t1);
+    },
+    $signature: 565
+  };
+  A.StylesheetParser__memberList_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this;
+      if (t1.scanner.peekChar$0() === 36)
+        this.variables.add$1(0, t1.variableName$0());
+      else
+        this.identifiers.add$1(0, t1.identifier$1$normalize(true));
+    },
+    $signature: 1
+  };
+  A.StylesheetParser__includeRule_closure0.prototype = {
+    call$2(children, span) {
+      return A.ContentBlock$0(this.contentArguments_, children, span);
+    },
+    $signature: 566
+  };
+  A.StylesheetParser_mediaRule_closure0.prototype = {
+    call$2(children, span) {
+      return A.MediaRule$0(this.query, children, span);
+    },
+    $signature: 567
+  };
+  A.StylesheetParser__mixinRule_closure0.prototype = {
+    call$2(children, span) {
+      var _this = this;
+      _this.$this._stylesheet0$_inMixin = false;
+      return A.MixinRule$0(_this.name, _this.$arguments, children, span, _this.precedingComment);
+    },
+    $signature: 568
+  };
+  A.StylesheetParser_mozDocumentRule_closure0.prototype = {
+    call$2(children, span) {
+      var _this = this;
+      if (_this._box_0.needsDeprecationWarning)
+        A.WarnForDeprecation_warnForDeprecation0(_this.$this.logger, B.Deprecation_Iit, string$.x40_moz_, span, null);
+      return A.AtRule$0(_this.name, span, children, _this.value);
+    },
+    $signature: 205
+  };
+  A.StylesheetParser_supportsRule_closure0.prototype = {
+    call$2(children, span) {
+      return A.SupportsRule$0(this.condition, children, span);
+    },
+    $signature: 570
+  };
+  A.StylesheetParser__whileRule_closure0.prototype = {
+    call$2(children, span) {
+      this.$this._stylesheet0$_inControlDirective = this.wasInControlDirective;
+      return A.WhileRule$0(this.condition, children, span);
+    },
+    $signature: 571
+  };
+  A.StylesheetParser_unknownAtRule_closure0.prototype = {
+    call$2(children, span) {
+      return A.AtRule$0(this.name, span, children, this._box_0.value);
+    },
+    $signature: 205
+  };
+  A.StylesheetParser__expression_resetState0.prototype = {
+    call$0() {
+      var t2,
+        t1 = this._box_0;
+      t1.operands_ = t1.operators_ = t1.spaceExpressions_ = t1.commaExpressions_ = null;
+      t2 = this.$this;
+      t2.scanner.set$state(this.start);
+      t1.allowSlash = true;
+      t1.singleExpression_ = t2._stylesheet0$_singleExpression$0();
+    },
+    $signature: 0
+  };
+  A.StylesheetParser__expression_resolveOneOperation0.prototype = {
+    call$0() {
+      var t2, t3, t4, t5, t6, t7, _this = this,
+        t1 = _this._box_0,
+        operator = t1.operators_.pop(),
+        left = t1.operands_.pop(),
+        right = t1.singleExpression_;
+      if (right == null) {
+        t2 = _this.$this.scanner;
+        t3 = operator.operator.length;
+        t2.error$3$length$position(0, "Expected expression.", t3, t2._string_scanner$_position - t3);
+      }
+      if (t1.allowSlash) {
+        t2 = _this.$this;
+        t2 = !t2._stylesheet0$_inParentheses && operator === B.BinaryOperator_U770 && t2._stylesheet0$_isSlashOperand$1(left) && t2._stylesheet0$_isSlashOperand$1(right);
+      } else
+        t2 = false;
+      if (t2)
+        t1.singleExpression_ = new A.BinaryOperationExpression0(B.BinaryOperator_U770, left, right, true);
+      else {
+        t1.singleExpression_ = new A.BinaryOperationExpression0(operator, left, right, false);
+        t2 = t1.allowSlash = false;
+        if (B.BinaryOperator_u150 === operator || B.BinaryOperator_SjO0 === operator) {
+          t3 = _this.$this;
+          t4 = t3.scanner.string;
+          t5 = right.get$span(right);
+          t5 = t5.get$start(t5);
+          t6 = right.get$span(right);
+          t7 = operator.operator;
+          if (B.JSString_methods.substring$2(t4, t5.offset - 1, t6.get$start(t6).offset) === t7) {
+            t2 = left.get$span(left);
+            t2 = t4.charCodeAt(t2.get$end(t2).offset);
+            t2 = t2 === 32 || t2 === 9 || t2 === 10 || t2 === 13 || t2 === 12;
+          }
+          if (t2) {
+            t2 = left.toString$0(0);
+            t4 = right.toString$0(0);
+            t5 = left.toString$0(0);
+            t6 = right.toString$0(0);
+            t1 = t1.singleExpression_;
+            A.WarnForDeprecation_warnForDeprecation0(t3.logger, B.Deprecation_woc, "This operation is parsed as:\n\n    " + t2 + " " + t7 + " " + t4 + string$.x0a_but_ + t5 + " (" + t7 + t6 + ")\n\nAdd a space after " + t7 + string$.x20to_cl, t1.get$span(t1), null);
+          }
+        }
+      }
+    },
+    $signature: 0
+  };
+  A.StylesheetParser__expression_resolveOperations0.prototype = {
+    call$0() {
+      var t1,
+        operators = this._box_0.operators_;
+      if (operators == null)
+        return;
+      for (t1 = this.resolveOneOperation; operators.length !== 0;)
+        t1.call$0();
+    },
+    $signature: 0
+  };
+  A.StylesheetParser__expression_addSingleExpression0.prototype = {
+    call$1(expression) {
+      var t2, spaceExpressions, _this = this,
+        t1 = _this._box_0;
+      if (t1.singleExpression_ != null) {
+        t2 = _this.$this;
+        if (t2._stylesheet0$_inParentheses) {
+          t2._stylesheet0$_inParentheses = false;
+          if (t1.allowSlash) {
+            _this.resetState.call$0();
+            return;
+          }
+        }
+        spaceExpressions = t1.spaceExpressions_;
+        if (spaceExpressions == null)
+          spaceExpressions = t1.spaceExpressions_ = A._setArrayType([], type$.JSArray_Expression_2);
+        _this.resolveOperations.call$0();
+        t2 = t1.singleExpression_;
+        t2.toString;
+        spaceExpressions.push(t2);
+        t1.allowSlash = true;
+      }
+      t1.singleExpression_ = expression;
+    },
+    $signature: 572
+  };
+  A.StylesheetParser__expression_addOperator0.prototype = {
+    call$1(operator) {
+      var t2, t3, operators, operands, t4, singleExpression,
+        t1 = this.$this;
+      if (t1.get$plainCss() && operator !== B.BinaryOperator_wdM0 && operator !== B.BinaryOperator_u150 && operator !== B.BinaryOperator_SjO0 && operator !== B.BinaryOperator_2No0 && operator !== B.BinaryOperator_U770) {
+        t2 = t1.scanner;
+        t3 = operator.operator.length;
+        t2.error$3$length$position(0, "Operators aren't allowed in plain CSS.", t3, t2._string_scanner$_position - t3);
+      }
+      t2 = this._box_0;
+      t2.allowSlash = t2.allowSlash && operator === B.BinaryOperator_U770;
+      operators = t2.operators_;
+      if (operators == null)
+        operators = t2.operators_ = A._setArrayType([], type$.JSArray_BinaryOperator_2);
+      operands = t2.operands_;
+      if (operands == null)
+        operands = t2.operands_ = A._setArrayType([], type$.JSArray_Expression_2);
+      t3 = this.resolveOneOperation;
+      t4 = operator.precedence;
+      while (true) {
+        if (!(operators.length !== 0 && B.JSArray_methods.get$last(operators).precedence >= t4))
+          break;
+        t3.call$0();
+      }
+      operators.push(operator);
+      singleExpression = t2.singleExpression_;
+      if (singleExpression == null) {
+        t3 = t1.scanner;
+        t4 = operator.operator.length;
+        t3.error$3$length$position(0, "Expected expression.", t4, t3._string_scanner$_position - t4);
+      }
+      operands.push(singleExpression);
+      t1.whitespace$0();
+      t2.singleExpression_ = t1._stylesheet0$_singleExpression$0();
+    },
+    $signature: 573
+  };
+  A.StylesheetParser__expression_resolveSpaceExpressions0.prototype = {
+    call$0() {
+      var t1, spaceExpressions, singleExpression, t2;
+      this.resolveOperations.call$0();
+      t1 = this._box_0;
+      spaceExpressions = t1.spaceExpressions_;
+      if (spaceExpressions == null)
+        return;
+      singleExpression = t1.singleExpression_;
+      if (singleExpression == null)
+        this.$this.scanner.error$1(0, "Expected expression.");
+      spaceExpressions.push(singleExpression);
+      t2 = B.JSArray_methods.get$first(spaceExpressions);
+      t2 = t2.get$span(t2).expand$1(0, singleExpression.get$span(singleExpression));
+      t1.singleExpression_ = new A.ListExpression0(A.List_List$unmodifiable(spaceExpressions, type$.Expression_2), B.ListSeparator_nbm0, false, t2);
+      t1.spaceExpressions_ = null;
+    },
+    $signature: 0
+  };
+  A.StylesheetParser_expressionUntilComma_closure0.prototype = {
+    call$0() {
+      return this.$this.scanner.peekChar$0() === 44;
+    },
+    $signature: 30
+  };
+  A.StylesheetParser__isHexColor_closure0.prototype = {
+    call$1(char) {
+      return A.CharacterExtension_get_isHex0(char);
+    },
+    $signature: 45
+  };
+  A.StylesheetParser__unicodeRange_closure1.prototype = {
+    call$1(char) {
+      return char != null && A.CharacterExtension_get_isHex0(char);
+    },
+    $signature: 28
+  };
+  A.StylesheetParser__unicodeRange_closure2.prototype = {
+    call$1(char) {
+      return char != null && A.CharacterExtension_get_isHex0(char);
+    },
+    $signature: 28
+  };
+  A.StylesheetParser_namespacedExpression_closure0.prototype = {
+    call$0() {
+      return this.$this.scanner.spanFrom$1(this.start);
+    },
+    $signature: 26
+  };
+  A.StylesheetParser_trySpecialFunction_closure0.prototype = {
+    call$1(contents) {
+      return new A.StringExpression0(contents, false);
+    },
+    $signature: 574
+  };
+  A.StylesheetParser__expressionUntilComparison_closure0.prototype = {
+    call$0() {
+      var t1 = this.$this.scanner,
+        _0_0 = t1.peekChar$0();
+      $label0$0: {
+        if (61 === _0_0) {
+          t1 = t1.peekChar$1(1) !== 61;
+          break $label0$0;
+        }
+        if (60 === _0_0 || 62 === _0_0) {
+          t1 = true;
+          break $label0$0;
+        }
+        t1 = false;
+        break $label0$0;
+      }
+      return t1;
+    },
+    $signature: 30
+  };
+  A.StylesheetParser__publicIdentifier_closure0.prototype = {
+    call$0() {
+      return this.$this.scanner.spanFrom$1(this.start);
+    },
+    $signature: 26
+  };
+  A.Stylesheet0.prototype = {
+    Stylesheet$internal$3$plainCss0(children, span, plainCss) {
+      var t1, t2, t3, t4, _i, child;
+      for (t1 = this.children, t2 = t1.length, t3 = this._stylesheet1$_forwards, t4 = this._stylesheet1$_uses, _i = 0; _i < t2; ++_i) {
+        child = t1[_i];
+        if (child instanceof A.UseRule0) {
+          t4.push(child);
+          continue;
+        }
+        if (child instanceof A.ForwardRule0) {
+          t3.push(child);
+          continue;
+        }
+        if (child instanceof A.SilentComment0 || child instanceof A.LoudComment0 || child instanceof A.VariableDeclaration0)
+          continue;
+        break;
+      }
+    },
+    accept$1$1(visitor) {
+      return visitor.visitStylesheet$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return (t1 && B.JSArray_methods).join$1(t1, " ");
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsExpression0.prototype = {
+    get$span(_) {
+      var t1 = this.condition;
+      return t1.get$span(t1);
+    },
+    accept$1$1(visitor) {
+      return visitor.visitSupportsExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return this.condition.toString$0(0);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1
+  };
+  A.ModifiableCssSupportsRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitCssSupportsRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    equalsIgnoringChildren$1(other) {
+      var t1, t2;
+      if (other instanceof A.ModifiableCssSupportsRule0) {
+        t1 = this.condition;
+        t2 = other.condition;
+        t1 = t1.$ti._is(t2) && J.$eq$(t2.value, t1.value);
+      } else
+        t1 = false;
+      return t1;
+    },
+    copyWithoutChildren$0() {
+      return A.ModifiableCssSupportsRule$0(this.condition, this.span);
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.SupportsRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitSupportsRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@supports " + this.condition.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.JSToDartImporter.prototype = {
+    canonicalize$1(_, url) {
+      var t1,
+        result = A.wrapJSExceptions(new A.JSToDartImporter_canonicalize_closure(this, url));
+      if (result == null)
+        return null;
+      t1 = self.URL;
+      if (result instanceof t1)
+        return A.Uri_parse(J.toString$0$(type$.JSUrl._as(result)));
+      t1 = self.Promise;
+      if (result instanceof t1)
+        A.jsThrow(new self.Error("The canonicalize() function can't return a Promise for synchronous compile functions."));
+      else
+        A.jsThrow(new self.Error(string$.The_ca));
+    },
+    load$1(_, url) {
+      var t1, contents, syntax, t2,
+        result = A.wrapJSExceptions(new A.JSToDartImporter_load_closure(this, url));
+      if (result == null)
+        return null;
+      t1 = self.Promise;
+      if (result instanceof t1)
+        A.jsThrow(new self.Error("The load() function can't return a Promise for synchronous compile functions."));
+      type$.JSImporterResult._as(result);
+      t1 = J.getInterceptor$x(result);
+      contents = t1.get$contents(result);
+      if (A._asString(new self.Function("value", "return typeof value").call$1(contents)) !== "string")
+        A.jsThrow(new A.ArgumentError(true, contents, "contents", "must be a string but was: " + A.jsType(contents)));
+      syntax = t1.get$syntax(result);
+      if (contents == null || syntax == null)
+        A.jsThrow(new self.Error(string$.The_lo));
+      t2 = A.parseSyntax(syntax);
+      return A.ImporterResult$(contents, A.NullableExtension_andThen0(t1.get$sourceMapUrl(result), A.utils1__jsToDartUrl$closure()), t2);
+    },
+    isNonCanonicalScheme$1(scheme) {
+      return this._sync$_nonCanonicalSchemes.contains$1(0, scheme);
+    }
+  };
+  A.JSToDartImporter_canonicalize_closure.prototype = {
+    call$0() {
+      return this.$this._sync$_canonicalize.call$2(this.url.toString$0(0), A.canonicalizeContext0());
+    },
+    $signature: 31
+  };
+  A.JSToDartImporter_load_closure.prototype = {
+    call$0() {
+      return this.$this._sync$_load.call$1(new self.URL(this.url.toString$0(0)));
+    },
+    $signature: 31
+  };
+  A.Syntax0.prototype = {
+    _enumToString$0() {
+      return "Syntax." + this._name;
+    },
+    toString$0(_) {
+      return this._syntax0$_name;
+    }
+  };
+  A.TypeSelector0.prototype = {
+    get$specificity() {
+      return 1;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitTypeSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    addSuffix$1(suffix) {
+      var t1 = this.name;
+      return new A.TypeSelector0(new A.QualifiedName0(t1.name + suffix, t1.namespace), this.span);
+    },
+    unify$1(compound) {
+      var unified, t1,
+        _0_0 = B.JSArray_methods.get$first(compound);
+      if (_0_0 instanceof A.UniversalSelector0 || _0_0 instanceof A.TypeSelector0) {
+        unified = A.unifyUniversalAndElement0(this, B.JSArray_methods.get$first(compound));
+        if (unified == null)
+          return null;
+        t1 = A._setArrayType([unified], type$.JSArray_SimpleSelector_2);
+        B.JSArray_methods.addAll$1(t1, A.SubListIterable$(compound, 1, null, A._arrayInstanceType(compound)._precomputed1));
+        return t1;
+      } else {
+        t1 = A._setArrayType([this], type$.JSArray_SimpleSelector_2);
+        B.JSArray_methods.addAll$1(t1, compound);
+        return t1;
+      }
+    },
+    isSuperselector$1(other) {
+      var t1, t2;
+      if (!this.super$SimpleSelector$isSuperselector0(other))
+        if (other instanceof A.TypeSelector0) {
+          t1 = this.name;
+          t2 = other.name;
+          if (t1.name === t2.name) {
+            t1 = t1.namespace;
+            t1 = t1 === "*" || t1 == t2.namespace;
+          } else
+            t1 = false;
+        } else
+          t1 = false;
+      else
+        t1 = true;
+      return t1;
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.TypeSelector0 && other.name.$eq(0, this.name);
+    },
+    get$hashCode(_) {
+      var t1 = this.name;
+      return B.JSString_methods.get$hashCode(t1.name) ^ J.get$hashCode$(t1.namespace);
+    }
+  };
+  A.Types.prototype = {};
+  A.UnaryOperationExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitUnaryOperationExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var operand,
+        t1 = this.operator,
+        t2 = t1.operator;
+      t1 = t1 === B.UnaryOperator_not_not_not0 ? t2 + A.Primitives_stringFromCharCode(32) : t2;
+      operand = this.operand;
+      $label0$0: {
+        if (!(operand instanceof A.BinaryOperationExpression0))
+          if (!(operand instanceof A.UnaryOperationExpression0))
+            t2 = operand instanceof A.ListExpression0 && !operand.hasBrackets && operand.contents.length >= 2;
+          else
+            t2 = true;
+        else
+          t2 = true;
+        if (t2)
+          break $label0$0;
+        break $label0$0;
+      }
+      if (t2)
+        t1 += "40";
+      t1 += operand.toString$0(0);
+      if (t2)
+        t1 += "41";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.UnaryOperator0.prototype = {
+    _enumToString$0() {
+      return "UnaryOperator." + this._name;
+    },
+    toString$0(_) {
+      return this.name;
+    }
+  };
+  A.UnitlessSassNumber0.prototype = {
+    get$numeratorUnits(_) {
+      return B.List_empty;
+    },
+    get$denominatorUnits(_) {
+      return B.List_empty;
+    },
+    get$hasUnits() {
+      return false;
+    },
+    get$hasComplexUnits() {
+      return false;
+    },
+    withValue$1(value) {
+      return new A.UnitlessSassNumber0(value, null);
+    },
+    withSlash$2(numerator, denominator) {
+      return new A.UnitlessSassNumber0(this._number1$_value, new A._Record_2(numerator, denominator));
+    },
+    hasUnit$1(unit) {
+      return false;
+    },
+    hasCompatibleUnits$1(other) {
+      return other instanceof A.UnitlessSassNumber0;
+    },
+    hasPossiblyCompatibleUnits$1(other) {
+      return other instanceof A.UnitlessSassNumber0;
+    },
+    compatibleWithUnit$1(unit) {
+      return true;
+    },
+    coerceToMatch$3(other, $name, otherName) {
+      return other.withValue$1(this._number1$_value);
+    },
+    coerceToMatch$1(other) {
+      return this.coerceToMatch$3(other, null, null);
+    },
+    coerceValueToMatch$3(other, $name, otherName) {
+      return this._number1$_value;
+    },
+    coerceValueToMatch$1(other) {
+      return this.coerceValueToMatch$3(other, null, null);
+    },
+    convertToMatch$3(other, $name, otherName) {
+      return other.get$hasUnits() ? this.super$SassNumber$convertToMatch(other, $name, otherName) : this;
+    },
+    convertValueToMatch$3(other, $name, otherName) {
+      return other.get$hasUnits() ? this.super$SassNumber$convertValueToMatch0(other, $name, otherName) : this._number1$_value;
+    },
+    convertValueToMatch$1(other) {
+      return this.convertValueToMatch$3(other, null, null);
+    },
+    coerce$3(newNumerators, newDenominators, $name) {
+      return A.SassNumber_SassNumber$withUnits0(this._number1$_value, newDenominators, newNumerators);
+    },
+    coerce$2(newNumerators, newDenominators) {
+      return this.coerce$3(newNumerators, newDenominators, null);
+    },
+    coerceValue$3(newNumerators, newDenominators, $name) {
+      return this._number1$_value;
+    },
+    coerceValueToUnit$2(unit, $name) {
+      return this._number1$_value;
+    },
+    coerceValueToUnit$1(unit) {
+      return this.coerceValueToUnit$2(unit, null);
+    },
+    greaterThan$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber0) {
+        t1 = this._number1$_value;
+        t2 = other._number1$_value;
+        return t1 > t2 && !A.fuzzyEquals0(t1, t2) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      }
+      return this.super$SassNumber$greaterThan0(other);
+    },
+    greaterThanOrEquals$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber0) {
+        t1 = this._number1$_value;
+        t2 = other._number1$_value;
+        return t1 > t2 || A.fuzzyEquals0(t1, t2) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      }
+      return this.super$SassNumber$greaterThanOrEquals0(other);
+    },
+    lessThan$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber0) {
+        t1 = this._number1$_value;
+        t2 = other._number1$_value;
+        return t1 < t2 && !A.fuzzyEquals0(t1, t2) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      }
+      return this.super$SassNumber$lessThan0(other);
+    },
+    lessThanOrEquals$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber0) {
+        t1 = this._number1$_value;
+        t2 = other._number1$_value;
+        return t1 < t2 || A.fuzzyEquals0(t1, t2) ? B.SassBoolean_true0 : B.SassBoolean_false0;
+      }
+      return this.super$SassNumber$lessThanOrEquals0(other);
+    },
+    modulo$1(other) {
+      if (other instanceof A.SassNumber0)
+        return other.withValue$1(A.moduloLikeSass0(this._number1$_value, other._number1$_value));
+      return this.super$SassNumber$modulo0(other);
+    },
+    plus$1(other) {
+      if (other instanceof A.SassNumber0)
+        return other.withValue$1(this._number1$_value + other._number1$_value);
+      return this.super$SassNumber$plus0(other);
+    },
+    minus$1(other) {
+      if (other instanceof A.SassNumber0)
+        return other.withValue$1(this._number1$_value - other._number1$_value);
+      return this.super$SassNumber$minus0(other);
+    },
+    times$1(other) {
+      if (other instanceof A.SassNumber0)
+        return other.withValue$1(this._number1$_value * other._number1$_value);
+      return this.super$SassNumber$times0(other);
+    },
+    dividedBy$1(other) {
+      var t1, t2;
+      if (other instanceof A.SassNumber0) {
+        t1 = this._number1$_value / other._number1$_value;
+        if (other.get$hasUnits()) {
+          t2 = other.get$denominatorUnits(other);
+          t2 = A.SassNumber_SassNumber$withUnits0(t1, other.get$numeratorUnits(other), t2);
+          t1 = t2;
+        } else
+          t1 = new A.UnitlessSassNumber0(t1, null);
+        return t1;
+      }
+      return this.super$SassNumber$dividedBy0(other);
+    },
+    unaryMinus$0() {
+      return new A.UnitlessSassNumber0(-this._number1$_value, null);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.UnitlessSassNumber0 && A.fuzzyEquals0(this._number1$_value, other._number1$_value);
+    },
+    get$hashCode(_) {
+      var t1 = this.hashCache;
+      return t1 == null ? this.hashCache = A.fuzzyHashCode0(this._number1$_value) : t1;
+    }
+  };
+  A.UniversalSelector0.prototype = {
+    get$specificity() {
+      return 0;
+    },
+    accept$1$1(visitor) {
+      return visitor.visitUniversalSelector$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    unify$1(compound) {
+      var _0_4, t1, rest, unified, _this = this, _null = null,
+        _0_1 = compound.length,
+        _0_4_isSet = _0_1 >= 1;
+      if (_0_4_isSet) {
+        _0_4 = compound[0];
+        t1 = _0_4;
+        if (!(t1 instanceof A.UniversalSelector0))
+          t1 = _0_4 instanceof A.TypeSelector0;
+        else
+          t1 = true;
+        rest = t1 ? B.JSArray_methods.sublist$1(compound, 1) : _null;
+      } else {
+        rest = _null;
+        _0_4 = rest;
+        t1 = false;
+      }
+      if (t1) {
+        unified = A.unifyUniversalAndElement0(_this, B.JSArray_methods.get$first(compound));
+        if (unified == null)
+          return _null;
+        t1 = A._setArrayType([unified], type$.JSArray_SimpleSelector_2);
+        B.JSArray_methods.addAll$1(t1, rest);
+        return t1;
+      }
+      if (_0_1 === 1) {
+        if (_0_4_isSet)
+          t1 = _0_4;
+        else {
+          _0_4 = compound[0];
+          t1 = _0_4;
+          _0_4_isSet = true;
+        }
+        if (t1 instanceof A.PseudoSelector0) {
+          t1 = _0_4_isSet ? _0_4 : compound[0];
+          type$.PseudoSelector_2._as(t1);
+          t1 = t1.isClass && t1.name === "host" || t1.get$isHostContext();
+        } else
+          t1 = false;
+      } else
+        t1 = false;
+      if (t1)
+        return _null;
+      if (_0_1 <= 0)
+        return A._setArrayType([_this], type$.JSArray_SimpleSelector_2);
+      t1 = _this.namespace;
+      if (t1 == null || t1 === "*")
+        t1 = compound;
+      else {
+        t1 = A._setArrayType([_this], type$.JSArray_SimpleSelector_2);
+        B.JSArray_methods.addAll$1(t1, compound);
+      }
+      return t1;
+    },
+    isSuperselector$1(other) {
+      var t1 = this.namespace;
+      if (t1 === "*")
+        return true;
+      if (other instanceof A.TypeSelector0)
+        return t1 == other.name.namespace;
+      if (other instanceof A.UniversalSelector0)
+        return t1 == other.namespace;
+      return t1 == null || this.super$SimpleSelector$isSuperselector0(other);
+    },
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return other instanceof A.UniversalSelector0 && other.namespace == this.namespace;
+    },
+    get$hashCode(_) {
+      return J.get$hashCode$(this.namespace);
+    }
+  };
+  A.UnprefixedMapView0.prototype = {
+    get$keys(_) {
+      return new A._UnprefixedKeys0(this);
+    },
+    $index(_, key) {
+      return typeof key == "string" ? this._unprefixed_map_view0$_map.$index(0, this._unprefixed_map_view0$_prefix + key) : null;
+    },
+    containsKey$1(key) {
+      return typeof key == "string" && this._unprefixed_map_view0$_map.containsKey$1(this._unprefixed_map_view0$_prefix + key);
+    },
+    remove$1(_, key) {
+      return typeof key == "string" ? this._unprefixed_map_view0$_map.remove$1(0, this._unprefixed_map_view0$_prefix + key) : null;
+    }
+  };
+  A._UnprefixedKeys0.prototype = {
+    get$iterator(_) {
+      var t1 = this._unprefixed_map_view0$_view._unprefixed_map_view0$_map;
+      t1 = J.where$1$ax(t1.get$keys(t1), new A._UnprefixedKeys_iterator_closure1(this)).map$1$1(0, new A._UnprefixedKeys_iterator_closure2(this), type$.String);
+      return t1.get$iterator(t1);
+    },
+    contains$1(_, key) {
+      return this._unprefixed_map_view0$_view.containsKey$1(key);
+    }
+  };
+  A._UnprefixedKeys_iterator_closure1.prototype = {
+    call$1(key) {
+      return B.JSString_methods.startsWith$1(key, this.$this._unprefixed_map_view0$_view._unprefixed_map_view0$_prefix);
+    },
+    $signature: 4
+  };
+  A._UnprefixedKeys_iterator_closure2.prototype = {
+    call$1(key) {
+      return B.JSString_methods.substring$1(key, this.$this._unprefixed_map_view0$_view._unprefixed_map_view0$_prefix.length);
+    },
+    $signature: 5
+  };
+  A.JSUrl0.prototype = {};
+  A.UseRule0.prototype = {
+    UseRule$4$configuration0(url, namespace, span, configuration) {
+      var t1, t2, _i, variable;
+      for (t1 = this.configuration, t2 = t1.length, _i = 0; _i < t2; ++_i) {
+        variable = t1[_i];
+        if (variable.isGuarded)
+          throw A.wrapException(A.ArgumentError$value(variable, "configured variable", "can't be guarded in a @use rule."));
+      }
+    },
+    accept$1$1(visitor) {
+      return visitor.visitUseRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.url,
+        t2 = "@use " + A.StringExpression_quoteText0(t1.toString$0(0)),
+        basename = t1.get$pathSegments().length === 0 ? "" : B.JSArray_methods.get$last(t1.get$pathSegments()),
+        dot = B.JSString_methods.indexOf$1(basename, ".");
+      t1 = this.namespace;
+      if (t1 !== B.JSString_methods.substring$2(basename, 0, dot === -1 ? basename.length : dot))
+        t1 = t2 + (" as " + (t1 == null ? "*" : t1));
+      else
+        t1 = t2;
+      t2 = this.configuration;
+      t1 = (t2.length !== 0 ? t1 + (" with (" + B.JSArray_methods.join$1(t2, ", ") + ")") : t1) + ";";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.UserDefinedCallable0.prototype = {
+    get$name(_) {
+      return this.declaration.name;
+    },
+    $isAsyncCallable0: 1,
+    $isCallable: 1
+  };
+  A.resolveImportPath_closure1.prototype = {
+    call$0() {
+      return A._exactlyOne0(A._tryPath0($.$get$context().withoutExtension$1(this.path) + ".import" + this.extension));
+    },
+    $signature: 44
+  };
+  A.resolveImportPath_closure2.prototype = {
+    call$0() {
+      return A._exactlyOne0(A._tryPathWithExtensions0(this.path + ".import"));
+    },
+    $signature: 44
+  };
+  A._tryPathAsDirectory_closure0.prototype = {
+    call$0() {
+      return A._exactlyOne0(A._tryPathWithExtensions0(A.join(this.path, "index.import", null)));
+    },
+    $signature: 44
+  };
+  A._exactlyOne_closure0.prototype = {
+    call$1(path) {
+      var t1 = $.$get$context();
+      return "  " + t1.prettyUri$1(t1.toUri$1(path));
+    },
+    $signature: 5
+  };
+  A._PropertyDescriptor0.prototype = {};
+  A.futureToPromise_closure0.prototype = {
+    call$2(resolve, reject) {
+      this.future.then$1$2$onError(0, new A.futureToPromise__closure0(resolve), new A.futureToPromise__closure1(reject), type$.void);
+    },
+    $signature: 575
+  };
+  A.futureToPromise__closure0.prototype = {
+    call$1(result) {
+      return this.resolve.call$1(result);
+    },
+    $signature: 34
+  };
+  A.futureToPromise__closure1.prototype = {
+    call$2(error, stackTrace) {
+      A.attachTrace0(error, stackTrace);
+      this.reject.call$1(error);
+    },
+    $signature: 53
+  };
+  A.objectToMap_closure.prototype = {
+    call$2(key, value) {
+      this.map.$indexSet(0, key, value);
+      return value;
+    },
+    $signature: 122
+  };
+  A._RequireMain0.prototype = {};
+  A.indent_closure0.prototype = {
+    call$1(line) {
+      return B.JSString_methods.$mul(" ", this.indentation) + line;
+    },
+    $signature: 5
+  };
+  A.flattenVertically_closure1.prototype = {
+    call$1(inner) {
+      return A.QueueList_QueueList$from(inner, this.T);
+    },
+    $signature() {
+      return this.T._eval$1("QueueList<0>(Iterable<0>)");
+    }
+  };
+  A.flattenVertically_closure2.prototype = {
+    call$1(queue) {
+      this.result.push(queue.removeFirst$0());
+      return queue.get$length(0) === 0;
+    },
+    $signature() {
+      return this.T._eval$1("bool(QueueList<0>)");
+    }
+  };
+  A.longestCommonSubsequence_backtrack0.prototype = {
+    call$2(i, j) {
+      var selection, t1, _this = this;
+      if (i === -1 || j === -1)
+        return A._setArrayType([], _this.T._eval$1("JSArray<0>"));
+      selection = _this.selections[i][j];
+      if (selection != null) {
+        t1 = _this.call$2(i - 1, j - 1);
+        J.add$1$ax(t1, selection);
+        return t1;
+      }
+      t1 = _this.lengths;
+      return t1[i + 1][j] > t1[i][j + 1] ? _this.call$2(i, j - 1) : _this.call$2(i - 1, j);
+    },
+    $signature() {
+      return this.T._eval$1("List<0>(int,int)");
+    }
+  };
+  A.mapAddAll2_closure0.prototype = {
+    call$2(key, inner) {
+      var t1 = this.destination,
+        _0_0 = t1.$index(0, key);
+      if (_0_0 != null)
+        _0_0.addAll$1(0, inner);
+      else
+        t1.$indexSet(0, key, inner);
+    },
+    $signature() {
+      return this.K1._eval$1("@<0>")._bind$1(this.K2)._bind$1(this.V)._eval$1("~(1,Map<2,3>)");
+    }
+  };
+  A.CssValue0.prototype = {
+    $eq(_, other) {
+      if (other == null)
+        return false;
+      return this.$ti._is(other) && J.$eq$(other.value, this.value);
+    },
+    get$hashCode(_) {
+      return J.get$hashCode$(this.value);
+    },
+    toString$0(_) {
+      return J.toString$0$(this.value);
+    },
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.ValueExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitValueExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return A.serializeValue0(this.value, true, true);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.valueClass_closure.prototype = {
+    call$0() {
+      var t2,
+        t1 = type$.JSClass,
+        jsClass = t1._as(self.Object.getPrototypeOf(J.get$$prototype$x(t1._as(B.C__SassNull0.constructor))).constructor);
+      A.JSClassExtension_setCustomInspect(jsClass, new A.valueClass__closure());
+      t1 = type$.String;
+      t2 = type$.Function;
+      A.LinkedHashMap_LinkedHashMap$_literal(["asList", new A.valueClass__closure0(), "hasBrackets", new A.valueClass__closure1(), "isTruthy", new A.valueClass__closure2(), "realNull", new A.valueClass__closure3(), "separator", new A.valueClass__closure4()], t1, t2).forEach$1(0, A.JSClassExtension_get_defineGetter(jsClass));
+      A.LinkedHashMap_LinkedHashMap$_literal(["sassIndexToListIndex", new A.valueClass__closure5(), "get", new A.valueClass__closure6(), "assertBoolean", new A.valueClass__closure7(), "assertCalculation", new A.valueClass__closure8(), "assertColor", new A.valueClass__closure9(), "assertFunction", new A.valueClass__closure10(), "assertMap", new A.valueClass__closure11(), "assertMixin", new A.valueClass__closure12(), "assertNumber", new A.valueClass__closure13(), "assertString", new A.valueClass__closure14(), "tryMap", new A.valueClass__closure15(), "equals", new A.valueClass__closure16(), "hashCode", new A.valueClass__closure17(), "toString", new A.valueClass__closure18()], t1, t2).forEach$1(0, A.JSClassExtension_get_defineMethod(jsClass));
+      return jsClass;
+    },
+    $signature: 13
+  };
+  A.valueClass__closure.prototype = {
+    call$1($self) {
+      return J.toString$0$($self);
+    },
+    $signature: 117
+  };
+  A.valueClass__closure0.prototype = {
+    call$1($self) {
+      return new self.immutable.List($self.get$asList());
+    },
+    $signature: 576
+  };
+  A.valueClass__closure1.prototype = {
+    call$1($self) {
+      return $self.get$hasBrackets();
+    },
+    $signature: 49
+  };
+  A.valueClass__closure2.prototype = {
+    call$1($self) {
+      return $self.get$isTruthy();
+    },
+    $signature: 49
+  };
+  A.valueClass__closure3.prototype = {
+    call$1($self) {
+      return $self.get$realNull();
+    },
+    $signature: 190
+  };
+  A.valueClass__closure4.prototype = {
+    call$1($self) {
+      return $self.get$separator($self).separator;
+    },
+    $signature: 577
+  };
+  A.valueClass__closure5.prototype = {
+    call$3($self, sassIndex, $name) {
+      return $self.sassIndexToListIndex$2(sassIndex, $name);
+    },
+    call$2($self, sassIndex) {
+      return this.call$3($self, sassIndex, null);
+    },
+    "call*": "call$3",
+    $requiredArgCount: 2,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 578
+  };
+  A.valueClass__closure6.prototype = {
+    call$2($self, index) {
+      return index < 1 && index >= -1 ? $self : self.undefined;
+    },
+    $signature: 244
+  };
+  A.valueClass__closure7.prototype = {
+    call$2($self, $name) {
+      return $self.assertBoolean$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 579
+  };
+  A.valueClass__closure8.prototype = {
+    call$2($self, $name) {
+      return $self.assertCalculation$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 580
+  };
+  A.valueClass__closure9.prototype = {
+    call$2($self, $name) {
+      return $self.assertColor$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 581
+  };
+  A.valueClass__closure10.prototype = {
+    call$2($self, $name) {
+      return $self.assertFunction$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 582
+  };
+  A.valueClass__closure11.prototype = {
+    call$2($self, $name) {
+      return $self.assertMap$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 583
+  };
+  A.valueClass__closure12.prototype = {
+    call$2($self, $name) {
+      return $self.assertMixin$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 584
+  };
+  A.valueClass__closure13.prototype = {
+    call$2($self, $name) {
+      return $self.assertNumber$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 585
+  };
+  A.valueClass__closure14.prototype = {
+    call$2($self, $name) {
+      return $self.assertString$1($name);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 586
+  };
+  A.valueClass__closure15.prototype = {
+    call$1($self) {
+      return $self.tryMap$0();
+    },
+    $signature: 587
+  };
+  A.valueClass__closure16.prototype = {
+    call$2($self, other) {
+      return $self.$eq(0, other);
+    },
+    $signature: 588
+  };
+  A.valueClass__closure17.prototype = {
+    call$2($self, _) {
+      return $self.get$hashCode($self);
+    },
+    call$1($self) {
+      return this.call$2($self, null);
+    },
+    "call*": "call$2",
+    $requiredArgCount: 1,
+    $defaultValues() {
+      return [null];
+    },
+    $signature: 589
+  };
+  A.valueClass__closure18.prototype = {
+    call$1($self) {
+      return A.serializeValue0($self, true, true);
+    },
+    $signature: 138
+  };
+  A.Value0.prototype = {
+    get$isTruthy() {
+      return true;
+    },
+    get$separator(_) {
+      return B.ListSeparator_undecided_null_undecided0;
+    },
+    get$hasBrackets() {
+      return false;
+    },
+    get$asList() {
+      return A._setArrayType([this], type$.JSArray_Value_2);
+    },
+    get$lengthAsList() {
+      return 1;
+    },
+    get$isBlank() {
+      return false;
+    },
+    get$isSpecialNumber() {
+      return false;
+    },
+    get$isVar() {
+      return false;
+    },
+    get$realNull() {
+      return this;
+    },
+    sassIndexToListIndex$2(sassIndex, $name) {
+      var t1, index,
+        indexValue = sassIndex.assertNumber$1($name);
+      if (indexValue.get$hasUnits()) {
+        t1 = indexValue.get$unitString();
+        A.warnForDeprecation0("$" + A.S($name) + ": Passing a number with unit " + t1 + string$.x20is_de + indexValue.unitSuggestion$1($name == null ? "index" : $name) + string$.x0a_Morex3a, B.Deprecation_oCX);
+      }
+      index = indexValue.assertInt$1($name);
+      if (index === 0)
+        throw A.wrapException(A.SassScriptException$0("List index may not be 0.", $name));
+      if (Math.abs(index) > this.get$lengthAsList())
+        throw A.wrapException(A.SassScriptException$0("Invalid index " + sassIndex.toString$0(0) + " for a list with " + this.get$lengthAsList() + " elements.", $name));
+      return index < 0 ? this.get$lengthAsList() + index : index - 1;
+    },
+    assertBoolean$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a boolean.", $name));
+    },
+    assertCalculation$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a calculation.", $name));
+    },
+    assertColor$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a color.", $name));
+    },
+    assertFunction$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a function reference.", $name));
+    },
+    assertMixin$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a mixin reference.", $name));
+    },
+    assertMap$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a map.", $name));
+    },
+    tryMap$0() {
+      return null;
+    },
+    assertNumber$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a number.", $name));
+    },
+    assertNumber$0() {
+      return this.assertNumber$1(null);
+    },
+    assertString$1($name) {
+      return A.throwExpression(A.SassScriptException$0(this.toString$0(0) + " is not a string.", $name));
+    },
+    _value$_selectorString$1($name) {
+      var _0_0 = this._value$_selectorStringOrNull$0();
+      if (_0_0 != null)
+        return _0_0;
+      throw A.wrapException(A.SassScriptException$0(this.toString$0(0) + string$.x20is_noav, $name));
+    },
+    _value$_selectorStringOrNull$0() {
+      var t1, t2, result, _1_0, _i, complex, string, compound, _this = this, _null = null;
+      if (_this instanceof A.SassString0)
+        return _this._string0$_text;
+      if (!(_this instanceof A.SassList0))
+        return _null;
+      t1 = _this._list1$_contents;
+      t2 = t1.length;
+      if (t2 === 0)
+        return _null;
+      result = A._setArrayType([], type$.JSArray_String);
+      $label0$1: {
+        _1_0 = _this._list1$_separator;
+        if (B.ListSeparator_ECn0 === _1_0) {
+          for (_i = 0; _i < t2; ++_i) {
+            complex = t1[_i];
+            if (complex instanceof A.SassString0) {
+              result.push(complex._string0$_text);
+              continue;
+            }
+            if (complex instanceof A.SassList0 && B.ListSeparator_nbm0 === complex._list1$_separator) {
+              string = complex._value$_selectorStringOrNull$0();
+              if (string == null)
+                return _null;
+              result.push(string);
+              continue;
+            }
+            return _null;
+          }
+          break $label0$1;
+        }
+        if (B.ListSeparator_cQA0 === _1_0)
+          return _null;
+        for (_i = 0; _i < t2; ++_i) {
+          compound = t1[_i];
+          if (!(compound instanceof A.SassString0))
+            return _null;
+          result.push(compound._string0$_text);
+        }
+        break $label0$1;
+      }
+      return B.JSArray_methods.join$1(result, _1_0 === B.ListSeparator_ECn0 ? ", " : " ");
+    },
+    withListContents$2$separator(contents, separator) {
+      var t1 = separator == null ? this.get$separator(this) : separator,
+        t2 = this.get$hasBrackets();
+      return A.SassList$0(contents, t1, t2);
+    },
+    withListContents$1(contents) {
+      return this.withListContents$2$separator(contents, null);
+    },
+    greaterThan$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " > " + other.toString$0(0) + '".', null));
+    },
+    greaterThanOrEquals$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " >= " + other.toString$0(0) + '".', null));
+    },
+    lessThan$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " < " + other.toString$0(0) + '".', null));
+    },
+    lessThanOrEquals$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " <= " + other.toString$0(0) + '".', null));
+    },
+    times$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " * " + other.toString$0(0) + '".', null));
+    },
+    modulo$1(other) {
+      return A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " % " + other.toString$0(0) + '".', null));
+    },
+    plus$1(other) {
+      var t1;
+      $label0$0: {
+        if (other instanceof A.SassString0) {
+          t1 = new A.SassString0(A.serializeValue0(this, false, true) + other._string0$_text, other._string0$_hasQuotes);
+          break $label0$0;
+        }
+        if (other instanceof A.SassCalculation0)
+          A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " + " + other.toString$0(0) + '".', null));
+        t1 = new A.SassString0(A.serializeValue0(this, false, true) + A.serializeValue0(other, false, true), false);
+        break $label0$0;
+      }
+      return t1;
+    },
+    minus$1(other) {
+      return other instanceof A.SassCalculation0 ? A.throwExpression(A.SassScriptException$0('Undefined operation "' + this.toString$0(0) + " - " + other.toString$0(0) + '".', null)) : new A.SassString0(A.serializeValue0(this, false, true) + "-" + A.serializeValue0(other, false, true), false);
+    },
+    dividedBy$1(other) {
+      return new A.SassString0(A.serializeValue0(this, false, true) + "/" + A.serializeValue0(other, false, true), false);
+    },
+    unaryPlus$0() {
+      return new A.SassString0("+" + A.serializeValue0(this, false, true), false);
+    },
+    unaryMinus$0() {
+      return new A.SassString0("-" + A.serializeValue0(this, false, true), false);
+    },
+    unaryNot$0() {
+      return B.SassBoolean_false0;
+    },
+    withoutSlash$0() {
+      return this;
+    },
+    toString$0(_) {
+      return A.serializeValue0(this, true, true);
+    }
+  };
+  A.VariableExpression0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitVariableExpression$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.span;
+      return A.String_String$fromCharCodes(B.NativeUint32List_methods.sublist$2(t1.file._decodedChars, t1._file$_start, t1._end), 0, null);
+    },
+    $isExpression0: 1,
+    $isAstNode0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.VariableDeclaration0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitVariableDeclaration$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.namespace;
+      t1 = t1 != null ? "" + (t1 + ".") : "";
+      t1 += "$" + this.name + ": " + this.expression.toString$0(0) + ";";
+      return t1.charCodeAt(0) == 0 ? t1 : t1;
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.WarnRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitWarnRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      return "@warn " + this.expression.toString$0(0) + ";";
+    },
+    $isAstNode0: 1,
+    $isStatement0: 1,
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  A.WhileRule0.prototype = {
+    accept$1$1(visitor) {
+      return visitor.visitWhileRule$1(this);
+    },
+    accept$1(visitor) {
+      return this.accept$1$1(visitor, type$.dynamic);
+    },
+    toString$0(_) {
+      var t1 = this.children;
+      return "@while " + this.condition.toString$0(0) + " {" + (t1 && B.JSArray_methods).join$1(t1, " ") + "}";
+    },
+    get$span(receiver) {
+      return this.span;
+    }
+  };
+  (function aliases() {
+    var _ = J.LegacyJavaScriptObject.prototype;
+    _.super$LegacyJavaScriptObject$toString = _.toString$0;
+    _ = A.JsLinkedHashMap.prototype;
+    _.super$JsLinkedHashMap$internalContainsKey = _.internalContainsKey$1;
+    _.super$JsLinkedHashMap$internalGet = _.internalGet$1;
+    _.super$JsLinkedHashMap$internalSet = _.internalSet$2;
+    _.super$JsLinkedHashMap$internalRemove = _.internalRemove$1;
+    _ = A._BufferingStreamSubscription.prototype;
+    _.super$_BufferingStreamSubscription$_add = _._async$_add$1;
+    _.super$_BufferingStreamSubscription$_addError = _._addError$2;
+    _ = A.ListBase.prototype;
+    _.super$ListBase$setRange = _.setRange$4;
+    _ = A.Iterable.prototype;
+    _.super$Iterable$where = _.where$1;
+    _.super$Iterable$skipWhile = _.skipWhile$1;
+    _ = A.ModifiableCssParentNode.prototype;
+    _.super$ModifiableCssParentNode$addChild = _.addChild$1;
+    _ = A.SimpleSelector.prototype;
+    _.super$SimpleSelector$addSuffix = _.addSuffix$1;
+    _.super$SimpleSelector$unify = _.unify$1;
+    _.super$SimpleSelector$isSuperselector = _.isSuperselector$1;
+    _ = A.Parser.prototype;
+    _.super$Parser$silentComment = _.silentComment$0;
+    _ = A.StylesheetParser.prototype;
+    _.super$StylesheetParser$importArgument = _.importArgument$0;
+    _.super$StylesheetParser$namespacedExpression = _.namespacedExpression$2;
+    _ = A.Value.prototype;
+    _.super$Value$assertMap = _.assertMap$1;
+    _.super$Value$plus = _.plus$1;
+    _.super$Value$minus = _.minus$1;
+    _.super$Value$dividedBy = _.dividedBy$1;
+    _ = A.SassNumber.prototype;
+    _.super$SassNumber$convertValueToMatch = _.convertValueToMatch$3;
+    _.super$SassNumber$coerce = _.coerce$3;
+    _.super$SassNumber$coerceValue = _.coerceValue$3;
+    _.super$SassNumber$coerceValueToUnit = _.coerceValueToUnit$2;
+    _.super$SassNumber$coerceToMatch = _.coerceToMatch$3;
+    _.super$SassNumber$coerceValueToMatch = _.coerceValueToMatch$3;
+    _.super$SassNumber$greaterThan = _.greaterThan$1;
+    _.super$SassNumber$greaterThanOrEquals = _.greaterThanOrEquals$1;
+    _.super$SassNumber$lessThan = _.lessThan$1;
+    _.super$SassNumber$lessThanOrEquals = _.lessThanOrEquals$1;
+    _.super$SassNumber$modulo = _.modulo$1;
+    _.super$SassNumber$plus = _.plus$1;
+    _.super$SassNumber$minus = _.minus$1;
+    _.super$SassNumber$times = _.times$1;
+    _.super$SassNumber$dividedBy = _.dividedBy$1;
+    _ = A.AnySelectorVisitor.prototype;
+    _.super$AnySelectorVisitor$visitComplexSelector = _.visitComplexSelector$1;
+    _ = A.EveryCssVisitor.prototype;
+    _.super$EveryCssVisitor$visitCssStyleRule = _.visitCssStyleRule$1;
+    _ = A.ReplaceExpressionVisitor.prototype;
+    _.super$ReplaceExpressionVisitor$visitBinaryOperationExpression = _.visitBinaryOperationExpression$1;
+    _.super$ReplaceExpressionVisitor$visitUnaryOperationExpression = _.visitUnaryOperationExpression$1;
+    _ = A.SourceSpanMixin.prototype;
+    _.super$SourceSpanMixin$compareTo = _.compareTo$1;
+    _.super$SourceSpanMixin$$eq = _.$eq;
+    _ = A.StringScanner.prototype;
+    _.super$StringScanner$readChar = _.readChar$0;
+    _.super$StringScanner$scanChar = _.scanChar$1;
+    _.super$StringScanner$scan = _.scan$1;
+    _.super$StringScanner$matches = _.matches$1;
+    _ = A.AnySelectorVisitor0.prototype;
+    _.super$AnySelectorVisitor$visitComplexSelector0 = _.visitComplexSelector$1;
+    _ = A.EveryCssVisitor0.prototype;
+    _.super$EveryCssVisitor$visitCssStyleRule0 = _.visitCssStyleRule$1;
+    _ = A.ModifiableCssParentNode0.prototype;
+    _.super$ModifiableCssParentNode$addChild0 = _.addChild$1;
+    _ = A.SassNumber0.prototype;
+    _.super$SassNumber$convertToMatch = _.convertToMatch$3;
+    _.super$SassNumber$convertValueToMatch0 = _.convertValueToMatch$3;
+    _.super$SassNumber$coerce0 = _.coerce$3;
+    _.super$SassNumber$coerceValue0 = _.coerceValue$3;
+    _.super$SassNumber$coerceValueToUnit0 = _.coerceValueToUnit$2;
+    _.super$SassNumber$coerceToMatch0 = _.coerceToMatch$3;
+    _.super$SassNumber$coerceValueToMatch0 = _.coerceValueToMatch$3;
+    _.super$SassNumber$greaterThan0 = _.greaterThan$1;
+    _.super$SassNumber$greaterThanOrEquals0 = _.greaterThanOrEquals$1;
+    _.super$SassNumber$lessThan0 = _.lessThan$1;
+    _.super$SassNumber$lessThanOrEquals0 = _.lessThanOrEquals$1;
+    _.super$SassNumber$modulo0 = _.modulo$1;
+    _.super$SassNumber$plus0 = _.plus$1;
+    _.super$SassNumber$minus0 = _.minus$1;
+    _.super$SassNumber$times0 = _.times$1;
+    _.super$SassNumber$dividedBy0 = _.dividedBy$1;
+    _ = A.Parser1.prototype;
+    _.super$Parser$silentComment0 = _.silentComment$0;
+    _ = A.ReplaceExpressionVisitor0.prototype;
+    _.super$ReplaceExpressionVisitor$visitBinaryOperationExpression0 = _.visitBinaryOperationExpression$1;
+    _.super$ReplaceExpressionVisitor$visitUnaryOperationExpression0 = _.visitUnaryOperationExpression$1;
+    _ = A.SimpleSelector0.prototype;
+    _.super$SimpleSelector$addSuffix0 = _.addSuffix$1;
+    _.super$SimpleSelector$unify0 = _.unify$1;
+    _.super$SimpleSelector$isSuperselector0 = _.isSuperselector$1;
+    _ = A.StylesheetParser0.prototype;
+    _.super$StylesheetParser$importArgument0 = _.importArgument$0;
+    _.super$StylesheetParser$namespacedExpression0 = _.namespacedExpression$2;
+    _ = A.Value0.prototype;
+    _.super$Value$assertMap0 = _.assertMap$1;
+    _.super$Value$plus0 = _.plus$1;
+    _.super$Value$minus0 = _.minus$1;
+    _.super$Value$dividedBy0 = _.dividedBy$1;
+  })();
+  (function installTearOffs() {
+    var _static_2 = hunkHelpers._static_2,
+      _instance_1_i = hunkHelpers._instance_1i,
+      _instance_1_u = hunkHelpers._instance_1u,
+      _static_1 = hunkHelpers._static_1,
+      _static_0 = hunkHelpers._static_0,
+      _static = hunkHelpers.installStaticTearOff,
+      _instance = hunkHelpers.installInstanceTearOff,
+      _instance_2_u = hunkHelpers._instance_2u,
+      _instance_0_i = hunkHelpers._instance_0i,
+      _instance_0_u = hunkHelpers._instance_0u;
+    _static_2(J, "_interceptors_JSArray__compareAny$closure", "JSArray__compareAny", 253);
+    _instance_1_i(J.JSArray.prototype, "get$contains", "contains$1", 9);
+    _instance_1_i(A._CastIterableBase.prototype, "get$contains", "contains$1", 9);
+    _instance_1_u(A.CastMap.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A.ConstantStringMap.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_i(A.ConstantStringSet.prototype, "get$contains", "contains$1", 9);
+    _instance_1_i(A.GeneralConstantSet.prototype, "get$contains", "contains$1", 9);
+    _instance_1_u(A.JsLinkedHashMap.prototype, "get$containsKey", "containsKey$1", 9);
+    _static_1(A, "async__AsyncRun__scheduleImmediateJsOverride$closure", "_AsyncRun__scheduleImmediateJsOverride", 133);
+    _static_1(A, "async__AsyncRun__scheduleImmediateWithSetImmediate$closure", "_AsyncRun__scheduleImmediateWithSetImmediate", 133);
+    _static_1(A, "async__AsyncRun__scheduleImmediateWithTimer$closure", "_AsyncRun__scheduleImmediateWithTimer", 133);
+    _static_0(A, "async___startMicrotaskLoop$closure", "_startMicrotaskLoop", 0);
+    _static_1(A, "async___nullDataHandler$closure", "_nullDataHandler", 72);
+    _static_2(A, "async___nullErrorHandler$closure", "_nullErrorHandler", 68);
+    _static_0(A, "async___nullDoneHandler$closure", "_nullDoneHandler", 0);
+    _static(A, "async___rootHandleUncaughtError$closure", 5, null, ["call$5"], ["_rootHandleUncaughtError"], 592, 0);
+    _static(A, "async___rootRun$closure", 4, null, ["call$1$4", "call$4"], ["_rootRun", function($self, $parent, zone, f) {
+      return A._rootRun($self, $parent, zone, f, type$.dynamic);
+    }], 593, 1);
+    _static(A, "async___rootRunUnary$closure", 5, null, ["call$2$5", "call$5"], ["_rootRunUnary", function($self, $parent, zone, f, arg) {
+      var t1 = type$.dynamic;
+      return A._rootRunUnary($self, $parent, zone, f, arg, t1, t1);
+    }], 594, 1);
+    _static(A, "async___rootRunBinary$closure", 6, null, ["call$3$6", "call$6"], ["_rootRunBinary", function($self, $parent, zone, f, arg1, arg2) {
+      var t1 = type$.dynamic;
+      return A._rootRunBinary($self, $parent, zone, f, arg1, arg2, t1, t1, t1);
+    }], 595, 1);
+    _static(A, "async___rootRegisterCallback$closure", 4, null, ["call$1$4", "call$4"], ["_rootRegisterCallback", function($self, $parent, zone, f) {
+      return A._rootRegisterCallback($self, $parent, zone, f, type$.dynamic);
+    }], 596, 0);
+    _static(A, "async___rootRegisterUnaryCallback$closure", 4, null, ["call$2$4", "call$4"], ["_rootRegisterUnaryCallback", function($self, $parent, zone, f) {
+      var t1 = type$.dynamic;
+      return A._rootRegisterUnaryCallback($self, $parent, zone, f, t1, t1);
+    }], 597, 0);
+    _static(A, "async___rootRegisterBinaryCallback$closure", 4, null, ["call$3$4", "call$4"], ["_rootRegisterBinaryCallback", function($self, $parent, zone, f) {
+      var t1 = type$.dynamic;
+      return A._rootRegisterBinaryCallback($self, $parent, zone, f, t1, t1, t1);
+    }], 598, 0);
+    _static(A, "async___rootErrorCallback$closure", 5, null, ["call$5"], ["_rootErrorCallback"], 599, 0);
+    _static(A, "async___rootScheduleMicrotask$closure", 4, null, ["call$4"], ["_rootScheduleMicrotask"], 600, 0);
+    _static(A, "async___rootCreateTimer$closure", 5, null, ["call$5"], ["_rootCreateTimer"], 601, 0);
+    _static(A, "async___rootCreatePeriodicTimer$closure", 5, null, ["call$5"], ["_rootCreatePeriodicTimer"], 602, 0);
+    _static(A, "async___rootPrint$closure", 4, null, ["call$4"], ["_rootPrint"], 603, 0);
+    _static_1(A, "async___printToZone$closure", "_printToZone", 92);
+    _static(A, "async___rootFork$closure", 5, null, ["call$5"], ["_rootFork"], 604, 0);
+    _instance(A._AsyncCompleter.prototype, "get$complete", 0, 0, function() {
+      return [null];
+    }, ["call$1", "call$0"], ["complete$1", "complete$0"], 259, 0, 0);
+    _instance_2_u(A._Future.prototype, "get$_completeError", "_completeError$2", 68);
+    var _;
+    _instance_1_i(_ = A._StreamController.prototype, "get$add", "add$1", 34);
+    _instance(_, "get$addError", 0, 1, function() {
+      return [null];
+    }, ["call$2", "call$1"], ["addError$2", "addError$1"], 242, 0, 0);
+    _instance_0_i(_, "get$close", "close$0", 528);
+    _instance_1_u(_, "get$_async$_add", "_async$_add$1", 34);
+    _instance_2_u(_, "get$_addError", "_addError$2", 68);
+    _instance_0_u(_, "get$_close", "_close$0", 0);
+    _instance_0_u(_ = A._ControllerSubscription.prototype, "get$_async$_onPause", "_async$_onPause$0", 0);
+    _instance_0_u(_, "get$_async$_onResume", "_async$_onResume$0", 0);
+    _instance(_ = A._BufferingStreamSubscription.prototype, "get$pause", 1, 0, null, ["call$1", "call$0"], ["pause$1", "pause$0"], 518, 0, 0);
+    _instance_0_i(_, "get$resume", "resume$0", 0);
+    _instance_0_u(_, "get$_async$_onPause", "_async$_onPause$0", 0);
+    _instance_0_u(_, "get$_async$_onResume", "_async$_onResume$0", 0);
+    _instance_1_u(_ = A._StreamIterator.prototype, "get$_onData", "_onData$1", 34);
+    _instance_2_u(_, "get$_onError", "_onError$2", 68);
+    _instance_0_u(_, "get$_onDone", "_onDone$0", 0);
+    _instance_0_u(_ = A._ForwardingStreamSubscription.prototype, "get$_async$_onPause", "_async$_onPause$0", 0);
+    _instance_0_u(_, "get$_async$_onResume", "_async$_onResume$0", 0);
+    _instance_1_u(_, "get$_handleData", "_handleData$1", 34);
+    _instance_2_u(_, "get$_handleError", "_handleError$2", 517);
+    _instance_0_u(_, "get$_handleDone", "_handleDone$0", 0);
+    _static_2(A, "collection___defaultEquals$closure", "_defaultEquals", 235);
+    _static_1(A, "collection___defaultHashCode$closure", "_defaultHashCode", 231);
+    _static_2(A, "collection_ListBase__compareAny$closure", "ListBase__compareAny", 253);
+    _instance_1_u(A._HashMap.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A._LinkedCustomHashMap.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance(_ = A._LinkedHashSet.prototype, "get$_newSimilarSet", 0, 0, null, ["call$1$0", "call$0"], ["_newSimilarSet$1$0", "_newSimilarSet$0"], 158, 0, 0);
+    _instance_1_i(_, "get$contains", "contains$1", 9);
+    _instance_1_i(_, "get$add", "add$1", 9);
+    _instance(A._LinkedIdentityHashSet.prototype, "get$_newSimilarSet", 0, 0, null, ["call$1$0", "call$0"], ["_newSimilarSet$1$0", "_newSimilarSet$0"], 158, 0, 0);
+    _instance_1_u(A.MapBase.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A.MapView.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_i(A.UnmodifiableSetView.prototype, "get$contains", "contains$1", 9);
+    _static_1(A, "convert___defaultToEncodable$closure", "_defaultToEncodable", 105);
+    _instance_1_u(A._JsonMap.prototype, "get$containsKey", "containsKey$1", 9);
+    _static_1(A, "core__identityHashCode$closure", "identityHashCode", 231);
+    _static_2(A, "core__identical$closure", "identical", 235);
+    _static_1(A, "core_Uri_decodeComponent$closure", "Uri_decodeComponent", 5);
+    _instance_1_i(A.Iterable.prototype, "get$contains", "contains$1", 9);
+    _instance_1_i(A.StringBuffer.prototype, "get$write", "write$1", 34);
+    _static(A, "math0__max$closure", 2, null, ["call$1$2", "call$2"], ["max", function(a, b) {
+      return A.max(a, b, type$.num);
+    }], 607, 1);
+    _instance_1_u(A.ArgResults.prototype, "get$wasParsed", "wasParsed$1", 4);
+    _instance_1_u(_ = A.StreamCompleter.prototype, "get$setSourceStream", "setSourceStream$1", 34);
+    _instance(_, "get$setError", 0, 1, function() {
+      return [null];
+    }, ["call$2", "call$1"], ["setError$2", "setError$1"], 242, 0, 0);
+    _instance_0_u(_ = A.StreamGroup.prototype, "get$_onListen", "_onListen$0", 0);
+    _instance_0_u(_, "get$_onPause", "_onPause$0", 0);
+    _instance_0_u(_, "get$_onResume", "_onResume$0", 0);
+    _instance_0_u(_, "get$_onCancel", "_onCancel$0", 191);
+    _instance_0_i(A.ReplAdapter.prototype, "get$exit", "exit$0", 0);
+    _instance_1_i(A.EmptyUnmodifiableSet.prototype, "get$contains", "contains$1", 9);
+    _instance_1_i(A.UnionSet.prototype, "get$contains", "contains$1", 9);
+    _instance_1_i(A._DelegatingIterableBase.prototype, "get$contains", "contains$1", 9);
+    _instance_1_i(A.MapKeySet.prototype, "get$contains", "contains$1", 9);
+    _static_1(A, "version_Version___parse_tearOff$closure", "Version___parse_tearOff", 199);
+    _instance_1_u(A.VersionRange.prototype, "get$allows", "allows$1", 529);
+    _instance_1_u(A._IsInvisibleVisitor0.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 16);
+    _instance_1_u(A._IsBogusVisitor.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 16);
+    _instance_1_u(A._IsUselessVisitor.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 16);
+    _instance_1_u(A.SelectorList.prototype, "get$isSuperselector", "isSuperselector$1", 74);
+    _instance_1_u(A.PseudoSelector.prototype, "get$isSuperselector", "isSuperselector$1", 14);
+    _instance_1_u(A.SimpleSelector.prototype, "get$isSuperselector", "isSuperselector$1", 14);
+    _instance_1_u(A.TypeSelector.prototype, "get$isSuperselector", "isSuperselector$1", 14);
+    _instance_1_u(A.UniversalSelector.prototype, "get$isSuperselector", "isSuperselector$1", 14);
+    _instance_1_u(A.EmptyExtensionStore.prototype, "get$addExtensions", "addExtensions$1", 225);
+    _instance_1_u(A.ExtensionStore.prototype, "get$addExtensions", "addExtensions$1", 225);
+    _static_1(A, "functions___isUnique$closure", "_isUnique", 14);
+    _static_1(A, "color0___opacify$closure", "_opacify", 29);
+    _static_1(A, "color0___transparentize$closure", "_transparentize", 29);
+    _instance_2_u(A.NodePackageImporter.prototype, "get$_compareExpansionKeys", "_compareExpansionKeys$2", 143);
+    _instance_0_u(_ = A.Parser.prototype, "get$whitespace", "whitespace$0", 0);
+    _instance_0_u(_, "get$loudComment", "loudComment$0", 0);
+    _instance_0_u(_, "get$string", "string$0", 25);
+    _instance(_, "get$error", 1, 2, function() {
+      return [null];
+    }, ["call$3", "call$2"], ["error$3", "error$2"], 152, 0, 0);
+    _instance_0_u(A.SassParser.prototype, "get$loudComment", "loudComment$0", 0);
+    _instance(_ = A.StylesheetParser.prototype, "get$_statement", 0, 0, null, ["call$1$root", "call$0"], ["_statement$1$root", "_statement$0"], 485, 0, 0);
+    _instance_0_u(_, "get$_declarationChild", "_declarationChild$0", 124);
+    _instance_0_u(_, "get$_functionChild", "_functionChild$0", 124);
+    _instance(_, "get$_expression", 0, 0, null, ["call$3$bracketList$singleEquals$until", "call$0", "call$2$singleEquals$until", "call$1$bracketList", "call$1$until"], ["_expression$3$bracketList$singleEquals$until", "_expression$0", "_expression$2$singleEquals$until", "_expression$1$bracketList", "_expression$1$until"], 483, 0, 0);
+    _instance(A.LazyFileSpan.prototype, "get$message", 1, 1, function() {
+      return {color: null};
+    }, ["call$2$color", "call$1"], ["message$2$color", "message$1"], 121, 0, 0);
+    _instance_1_u(A.LimitedMapView.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A.MergedMapView.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance(A.MultiSpan.prototype, "get$message", 1, 1, function() {
+      return {color: null};
+    }, ["call$2$color", "call$1"], ["message$2$color", "message$1"], 159, 0, 0);
+    _instance_1_i(A.NoSourceMapBuffer.prototype, "get$write", "write$1", 34);
+    _instance_1_u(A.PrefixedMapView.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A.PublicMemberMapView.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_i(A.SourceMapBuffer.prototype, "get$write", "write$1", 34);
+    _instance_1_u(A.UnprefixedMapView.prototype, "get$containsKey", "containsKey$1", 9);
+    _static_1(A, "utils__isPublic$closure", "isPublic", 4);
+    _static_1(A, "calculation_SassCalculation__simplify$closure", "SassCalculation__simplify", 64);
+    _instance_1_u(A.AnySelectorVisitor.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 16);
+    _instance(_ = A._EvaluateVisitor0.prototype, "get$_async_evaluate$_interpolationToValue", 0, 1, null, ["call$3$trim$warnForColor", "call$1", "call$2$warnForColor"], ["_async_evaluate$_interpolationToValue$3$trim$warnForColor", "_async_evaluate$_interpolationToValue$1", "_async_evaluate$_interpolationToValue$2$warnForColor"], 631, 0, 0);
+    _instance_1_u(_, "get$_async_evaluate$_expressionNode", "_async_evaluate$_expressionNode$1", 164);
+    _instance(_ = A._EvaluateVisitor.prototype, "get$_interpolationToValue", 0, 1, null, ["call$3$trim$warnForColor", "call$1", "call$2$warnForColor"], ["_interpolationToValue$3$trim$warnForColor", "_interpolationToValue$1", "_interpolationToValue$2$warnForColor"], 309, 0, 0);
+    _instance_1_u(_, "get$_expressionNode", "_expressionNode$1", 164);
+    _instance_1_u(_ = A.RecursiveStatementVisitor.prototype, "get$visitContentBlock", "visitContentBlock$1", 267);
+    _instance_1_u(_, "get$visitChildren", "visitChildren$1", 268);
+    _instance_1_u(_ = A.SelectorSearchVisitor.prototype, "get$visitComplexSelector", "visitComplexSelector$1", "SelectorSearchVisitor.T?(ComplexSelector)");
+    _instance_1_u(_, "get$visitSelectorList", "visitSelectorList$1", "SelectorSearchVisitor.T?(SelectorList)");
+    _instance_1_u(_ = A._SerializeVisitor.prototype, "get$_visitMediaQuery", "_visitMediaQuery$1", 271);
+    _instance_1_u(_, "get$_writeCalculationValue", "_writeCalculationValue$1", 82);
+    _instance_1_u(_, "get$visitSelectorList", "visitSelectorList$1", 272);
+    _instance_1_u(_, "get$_requiresSemicolon", "_requiresSemicolon$1", 7);
+    _instance_1_u(_ = A.StatementSearchVisitor.prototype, "get$visitContentBlock", "visitContentBlock$1", "StatementSearchVisitor.T?(ContentBlock)");
+    _instance_1_u(_, "get$visitChildren", "visitChildren$1", "StatementSearchVisitor.T?(List<Statement>)");
+    _instance(A.SourceSpanMixin.prototype, "get$message", 1, 1, function() {
+      return {color: null};
+    }, ["call$2$color", "call$1"], ["message$2$color", "message$1"], 121, 0, 0);
+    _static_1(A, "frame_Frame___parseVM_tearOff$closure", "Frame___parseVM_tearOff", 84);
+    _static_1(A, "frame_Frame___parseV8_tearOff$closure", "Frame___parseV8_tearOff", 84);
+    _static_1(A, "frame_Frame___parseFirefox_tearOff$closure", "Frame___parseFirefox_tearOff", 84);
+    _static_1(A, "frame_Frame___parseFriendly_tearOff$closure", "Frame___parseFriendly_tearOff", 84);
+    _static_1(A, "trace_Trace___parseVM_tearOff$closure", "Trace___parseVM_tearOff", 207);
+    _static_1(A, "trace_Trace___parseFriendly_tearOff$closure", "Trace___parseFriendly_tearOff", 207);
+    _static(A, "from_handlers__TransformByHandlers__defaultHandleError$closure", 3, null, ["call$1$3", "call$3"], ["TransformByHandlers__defaultHandleError", function(error, stackTrace, sink) {
+      return A.TransformByHandlers__defaultHandleError(error, stackTrace, sink, type$.dynamic);
+    }], 610, 0);
+    _static(A, "rate_limit___collect$closure", 2, null, ["call$1$2", "call$2"], ["_collect", function($event, soFar) {
+      return A._collect($event, soFar, type$.dynamic);
+    }], 611, 0);
+    _instance_1_u(A.AnySelectorVisitor0.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 18);
+    _instance(_ = A._EvaluateVisitor2.prototype, "get$_async_evaluate0$_interpolationToValue", 0, 1, null, ["call$3$trim$warnForColor", "call$1", "call$2$warnForColor"], ["_async_evaluate0$_interpolationToValue$3$trim$warnForColor", "_async_evaluate0$_interpolationToValue$1", "_async_evaluate0$_interpolationToValue$2$warnForColor"], 311, 0, 0);
+    _instance_1_u(_, "get$_async_evaluate0$_expressionNode", "_async_evaluate0$_expressionNode$1", 248);
+    _static_1(A, "calculation1___assertCalculationValue$closure", "_assertCalculationValue", 82);
+    _static_1(A, "calculation1___isValidClampArg$closure", "_isValidClampArg", 9);
+    _static_1(A, "calculation0_SassCalculation__simplify$closure", "SassCalculation__simplify0", 64);
+    _static_1(A, "color2___opacify$closure", "_opacify0", 27);
+    _static_1(A, "color2___transparentize$closure", "_transparentize0", 27);
+    _static(A, "compile__compile$closure", 1, function() {
+      return [null];
+    }, ["call$2", "call$1"], ["compile0", function(path) {
+      return A.compile0(path, null);
+    }], 612, 0);
+    _static(A, "compile__compileString$closure", 1, function() {
+      return [null];
+    }, ["call$2", "call$1"], ["compileString0", function(text) {
+      return A.compileString0(text, null);
+    }], 613, 0);
+    _static(A, "compile__compileAsync$closure", 1, function() {
+      return [null];
+    }, ["call$2", "call$1"], ["compileAsync1", function(path) {
+      return A.compileAsync1(path, null);
+    }], 614, 0);
+    _static(A, "compile__compileStringAsync$closure", 1, function() {
+      return [null];
+    }, ["call$2", "call$1"], ["compileStringAsync1", function(text) {
+      return A.compileStringAsync1(text, null);
+    }], 615, 0);
+    _static_1(A, "compile___parseImporter$closure", "_parseImporter0", 616);
+    _static_1(A, "compile___simplifyCalcArg$closure", "_simplifyCalcArg", 64);
+    _static_0(A, "compiler__initCompiler$closure", "initCompiler", 617);
+    _static_0(A, "compiler__initAsyncCompiler$closure", "initAsyncCompiler", 618);
+    _instance_1_u(A.EmptyExtensionStore0.prototype, "get$addExtensions", "addExtensions$1", 198);
+    _instance(_ = A._EvaluateVisitor1.prototype, "get$_evaluate0$_interpolationToValue", 0, 1, null, ["call$3$trim$warnForColor", "call$1", "call$2$warnForColor"], ["_evaluate0$_interpolationToValue$3$trim$warnForColor", "_evaluate0$_interpolationToValue$1", "_evaluate0$_interpolationToValue$2$warnForColor"], 425, 0, 0);
+    _instance_1_u(_, "get$_evaluate0$_expressionNode", "_evaluate0$_expressionNode$1", 248);
+    _instance_1_u(A.ExtensionStore0.prototype, "get$addExtensions", "addExtensions$1", 198);
+    _static_1(A, "functions0___isUnique$closure", "_isUnique0", 15);
+    _static_1(A, "immutable__jsToDartList$closure", "jsToDartList", 619);
+    _instance(A.LazyFileSpan0.prototype, "get$message", 1, 1, function() {
+      return {color: null};
+    }, ["call$2$color", "call$1"], ["message$2$color", "message$1"], 121, 0, 0);
+    _static_2(A, "legacy__render$closure", "render", 620);
+    _static_1(A, "legacy__renderSync$closure", "renderSync", 621);
+    _instance_1_u(A.LimitedMapView0.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A.SelectorList0.prototype, "get$isSuperselector", "isSuperselector$1", 70);
+    _instance_1_u(A.MergedMapView0.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance(A.MultiSpan0.prototype, "get$message", 1, 1, function() {
+      return {color: null};
+    }, ["call$2$color", "call$1"], ["message$2$color", "message$1"], 159, 0, 0);
+    _instance_1_i(A.NoSourceMapBuffer0.prototype, "get$write", "write$1", 34);
+    _instance_2_u(A.NodePackageImporter0.prototype, "get$_node_package$_compareExpansionKeys", "_node_package$_compareExpansionKeys$2", 143);
+    _instance_0_u(_ = A.Parser1.prototype, "get$whitespace", "whitespace$0", 0);
+    _instance_0_u(_, "get$loudComment", "loudComment$0", 0);
+    _instance_0_u(_, "get$string", "string$0", 25);
+    _instance(_, "get$error", 1, 2, function() {
+      return [null];
+    }, ["call$3", "call$2"], ["error$3", "error$2"], 152, 0, 0);
+    _instance_1_u(A.PrefixedMapView0.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_1_u(A.PseudoSelector0.prototype, "get$isSuperselector", "isSuperselector$1", 15);
+    _instance_1_u(A.PublicMemberMapView0.prototype, "get$containsKey", "containsKey$1", 9);
+    _instance_0_u(A.SassParser0.prototype, "get$loudComment", "loudComment$0", 0);
+    _instance_1_u(A._IsInvisibleVisitor2.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 18);
+    _instance_1_u(A._IsBogusVisitor0.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 18);
+    _instance_1_u(A._IsUselessVisitor0.prototype, "get$visitComplexSelector", "visitComplexSelector$1", 18);
+    _instance_1_u(_ = A.SelectorSearchVisitor0.prototype, "get$visitComplexSelector", "visitComplexSelector$1", "SelectorSearchVisitor0.T?(ComplexSelector0)");
+    _instance_1_u(_, "get$visitSelectorList", "visitSelectorList$1", "SelectorSearchVisitor0.T?(SelectorList0)");
+    _instance_1_u(_ = A._SerializeVisitor0.prototype, "get$_serialize0$_visitMediaQuery", "_serialize0$_visitMediaQuery$1", 534);
+    _instance_1_u(_, "get$_serialize0$_writeCalculationValue", "_serialize0$_writeCalculationValue$1", 82);
+    _instance_1_u(_, "get$visitSelectorList", "visitSelectorList$1", 535);
+    _instance_1_u(_, "get$_serialize0$_requiresSemicolon", "_serialize0$_requiresSemicolon$1", 8);
+    _instance_1_u(A.SimpleSelector0.prototype, "get$isSuperselector", "isSuperselector$1", 15);
+    _instance_1_i(A.SourceMapBuffer0.prototype, "get$write", "write$1", 34);
+    _instance_1_u(_ = A.StatementSearchVisitor0.prototype, "get$visitContentBlock", "visitContentBlock$1", "StatementSearchVisitor0.T?(ContentBlock0)");
+    _instance_1_u(_, "get$visitChildren", "visitChildren$1", "StatementSearchVisitor0.T?(List<Statement0>)");
+    _instance(_ = A.StylesheetParser0.prototype, "get$_stylesheet0$_statement", 0, 0, null, ["call$1$root", "call$0"], ["_stylesheet0$_statement$1$root", "_stylesheet0$_statement$0"], 552, 0, 0);
+    _instance_0_u(_, "get$_stylesheet0$_declarationChild", "_stylesheet0$_declarationChild$0", 132);
+    _instance_0_u(_, "get$_stylesheet0$_functionChild", "_stylesheet0$_functionChild$0", 132);
+    _instance_1_u(A.TypeSelector0.prototype, "get$isSuperselector", "isSuperselector$1", 15);
+    _instance_1_u(A.UniversalSelector0.prototype, "get$isSuperselector", "isSuperselector$1", 15);
+    _instance_1_u(A.UnprefixedMapView0.prototype, "get$containsKey", "containsKey$1", 9);
+    _static_1(A, "utils1__jsToDartUrl$closure", "jsToDartUrl", 622);
+    _static_1(A, "utils1__dartToJSUrl$closure", "dartToJSUrl", 623);
+    _static_1(A, "utils0__isPublic$closure", "isPublic0", 4);
+    _static(A, "path__absolute$closure", 1, function() {
+      return [null, null, null, null, null, null, null, null, null, null, null, null, null, null];
+    }, ["call$15", "call$1", "call$2", "call$3", "call$4", "call$5", "call$6"], ["absolute", function(part1) {
+      var _null = null;
+      return A.absolute(part1, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    }, function(part1, part2) {
+      var _null = null;
+      return A.absolute(part1, part2, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    }, function(part1, part2, part3) {
+      var _null = null;
+      return A.absolute(part1, part2, part3, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    }, function(part1, part2, part3, part4) {
+      var _null = null;
+      return A.absolute(part1, part2, part3, part4, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    }, function(part1, part2, part3, part4, part5) {
+      var _null = null;
+      return A.absolute(part1, part2, part3, part4, part5, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    }, function(part1, part2, part3, part4, part5, part6) {
+      var _null = null;
+      return A.absolute(part1, part2, part3, part4, part5, part6, _null, _null, _null, _null, _null, _null, _null, _null, _null);
+    }], 624, 0);
+    _static_1(A, "path__prettyUri$closure", "prettyUri", 625);
+    _static_2(A, "number0__fuzzyLessThan$closure", "fuzzyLessThan", 47);
+    _static_2(A, "number0__fuzzyLessThanOrEquals$closure", "fuzzyLessThanOrEquals", 47);
+    _static_2(A, "number0__fuzzyGreaterThan$closure", "fuzzyGreaterThan", 47);
+    _static_2(A, "number0__fuzzyGreaterThanOrEquals$closure", "fuzzyGreaterThanOrEquals", 47);
+    _static_2(A, "number0__moduloLikeSass$closure", "moduloLikeSass", 55);
+    _static_1(A, "number0__sqrt$closure", "sqrt", 52);
+    _static_1(A, "number0__sin$closure", "sin", 52);
+    _static_1(A, "number0__cos$closure", "cos", 52);
+    _static_1(A, "number0__tan$closure", "tan", 52);
+    _static_1(A, "number0__atan$closure", "atan", 52);
+    _static_1(A, "number0__asin$closure", "asin", 52);
+    _static_1(A, "number0__acos$closure", "acos", 52);
+    _static_2(A, "number2__fuzzyLessThan$closure", "fuzzyLessThan0", 47);
+    _static_2(A, "number2__fuzzyLessThanOrEquals$closure", "fuzzyLessThanOrEquals0", 47);
+    _static_2(A, "number2__fuzzyGreaterThan$closure", "fuzzyGreaterThan0", 47);
+    _static_2(A, "number2__fuzzyGreaterThanOrEquals$closure", "fuzzyGreaterThanOrEquals0", 47);
+    _static_1(A, "number2__fuzzyRound$closure", "fuzzyRound0", 628);
+    _static_2(A, "number2__moduloLikeSass$closure", "moduloLikeSass0", 55);
+    _static_1(A, "number2__sqrt$closure", "sqrt0", 48);
+    _static_1(A, "number2__sin$closure", "sin0", 48);
+    _static_1(A, "number2__cos$closure", "cos0", 48);
+    _static_1(A, "number2__tan$closure", "tan0", 48);
+    _static_1(A, "number2__atan$closure", "atan0", 48);
+    _static_1(A, "number2__asin$closure", "asin0", 48);
+    _static_1(A, "number2__acos$closure", "acos0", 48);
+    _static_1(A, "sass__main$closure", "main1", 466);
+    _static_1(A, "utils2__validateUrlScheme$closure", "validateUrlScheme", 92);
+    _static_1(A, "value0__wrapValue$closure", "wrapValue", 420);
+  })();
+  (function inheritance() {
+    var _mixin = hunkHelpers.mixin,
+      _inherit = hunkHelpers.inherit,
+      _inheritMany = hunkHelpers.inheritMany;
+    _inherit(A.Object, null);
+    _inheritMany(A.Object, [A.JS_CONST, J.Interceptor, J.ArrayIterator, A.Iterable, A.CastIterator, A.Closure, A.MapBase, A.Error, A.ListBase, A.SentinelValue, A.ListIterator, A.MappedIterator, A.WhereIterator, A.ExpandIterator, A.TakeIterator, A.SkipIterator, A.SkipWhileIterator, A.EmptyIterator, A.FollowedByIterator, A.WhereTypeIterator, A.FixedLengthListMixin, A.UnmodifiableListMixin, A.Symbol, A._Record, A.MapView, A.ConstantMap, A._KeysOrValuesOrElementsIterator, A.SetBase, A.JSInvocationMirror, A.TypeErrorDecoder, A.NullThrownFromJavaScriptException, A.ExceptionAndStackTrace, A._StackTrace, A._Required, A.LinkedHashMapCell, A.LinkedHashMapKeyIterator, A.JSSyntaxRegExp, A._MatchImplementation, A._AllMatchesIterator, A.StringMatch, A._StringAllMatchesIterator, A._Cell, A.Rti, A._FunctionParameters, A._Type, A._TimerImpl, A._AsyncAwaitCompleter, A._SyncStarIterator, A.AsyncError, A._Completer, A._FutureListener, A._Future, A._AsyncCallbackEntry, A.Stream, A._StreamController, A._SyncStreamControllerDispatch, A._AsyncStreamControllerDispatch, A._BufferingStreamSubscription, A._AddStreamState, A._DelayedEvent, A._DelayedDone, A._PendingEvents, A._StreamIterator, A._ZoneFunction, A._ZoneSpecification, A._ZoneDelegate, A._Zone, A._HashMapKeyIterator, A._LinkedHashSetCell, A._LinkedHashSetIterator, A._MapBaseValueIterator, A._UnmodifiableMapMixin, A._ListQueueIterator, A._UnmodifiableSetMixin, A.Codec, A.Converter, A._Base64Encoder, A.ByteConversionSink, A._JsonStringifier, A.StringConversionSink, A._Utf8Encoder, A._Utf8Decoder, A.DateTime, A.Duration, A._Enum, A.OutOfMemoryError, A.StackOverflowError, A._Exception, A.FormatException, A.MapEntry, A.Null, A._StringStackTrace, A.RuneIterator, A.StringBuffer, A._Uri, A.UriData, A._SimpleUri, A.Expando, A.NullRejectionException, A._JSRandom, A.ArgParser, A.ArgResults, A.Option, A.OptionType, A.Parser0, A._Usage, A.FutureGroup, A.ErrorResult, A.ValueResult, A.StreamCompleter, A.StreamGroup, A._StreamGroupState, A.StreamQueue, A._NextRequest, A.Repl, A.ReplAdapter, A.DefaultEquality, A.IterableEquality, A.ListEquality, A._MapEntry, A.MapEquality, A._QueueList_Object_ListMixin, A._DelegatingIterableBase, A.UnmodifiableSetMixin, A.Context, A._PathDirection, A._PathRelation, A.Style, A.ParsedPath, A.PathException, A.Version, A.VersionRange, A.CssMediaQuery, A.MediaQuerySuccessfulMergeResult, A.CssNode, A.__IsInvisibleVisitor_Object_EveryCssVisitor, A.CssValue, A._FakeAstNode, A.Argument, A.ArgumentDeclaration, A.ArgumentInvocation, A.AtRootQuery, A.ConfiguredVariable, A._IsCalculationSafeVisitor, A.BinaryOperationExpression, A.BooleanExpression, A.ColorExpression, A.FunctionExpression, A.IfExpression, A.InterpolatedFunctionExpression, A.ListExpression, A.MapExpression, A.NullExpression, A.NumberExpression, A.ParenthesizedExpression, A.SelectorExpression, A.StringExpression, A.SupportsExpression, A.UnaryOperationExpression, A.ValueExpression, A.VariableExpression, A.DynamicImport, A.StaticImport, A.Interpolation, A.ParentStatement, A.ContentRule, A.DebugRule, A.ErrorRule, A.ExtendRule, A.ForwardRule, A.IfRule, A.IfRuleClause, A.ImportRule, A.IncludeRule, A.LoudComment, A.__HasContentVisitor_Object_StatementSearchVisitor, A.ReturnRule, A.SilentComment, A.UseRule, A.VariableDeclaration, A.WarnRule, A.SupportsAnything, A.SupportsDeclaration, A.SupportsFunction, A.SupportsInterpolation, A.SupportsNegation, A.SupportsOperation, A.Selector, A.__IsInvisibleVisitor_Object_AnySelectorVisitor, A.__IsBogusVisitor_Object_AnySelectorVisitor, A.__IsUselessVisitor_Object_AnySelectorVisitor, A.ComplexSelectorComponent, A.__ParentSelectorVisitor_Object_SelectorSearchVisitor, A.QualifiedName, A.AsyncEnvironment, A._EnvironmentModule0, A.AsyncImportCache, A.AsyncBuiltInCallable, A.BuiltInCallable, A.PlainCssCallable, A.UserDefinedCallable, A.CompileResult, A.Configuration, A.ConfiguredValue, A.Environment, A._EnvironmentModule, A.SourceSpanException, A.SassScriptException, A.ExecutableOptions, A.UsageException, A._Watcher, A.EmptyExtensionStore, A.Extension, A.Extender, A.ExtensionStore, A.ImportCache, A.AsyncImporter, A.CanonicalizeContext, A.ImporterResult, A.InterpolationBuffer, A.InterpolationMap, A.FileSystemException, A.LoggerWithDeprecationType0, A._QuietLogger, A.StderrLogger, A.TrackingLogger, A.BuiltInModule, A.ForwardedModuleView, A.ShadowedModuleView, A.Parser, A.StylesheetGraph, A.StylesheetNode, A.Box, A.ModifiableBox, A.LazyFileSpan, A.MultiDirWatcher, A.MultiSpan, A.NoSourceMapBuffer, A.SourceMapBuffer, A.Value, A.CalculationOperation, A._ColorFormatEnum, A.SpanColorFormat, A.AnySelectorVisitor, A._EvaluateVisitor0, A._ImportedCssVisitor0, A._EvaluationContext0, A._CloneCssVisitor, A.Evaluator, A._EvaluateVisitor, A._ImportedCssVisitor, A._EvaluationContext, A.EveryCssVisitor, A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor, A.__FindDependenciesVisitor_Object_RecursiveStatementVisitor, A.DependencyReport, A.RecursiveStatementVisitor, A.ReplaceExpressionVisitor, A.SelectorSearchVisitor, A._SerializeVisitor, A.StatementSearchVisitor, A.Entry, A.Mapping, A.TargetLineEntry, A.TargetEntry, A.SourceFile, A.SourceLocationMixin, A.SourceSpanMixin, A.Highlighter, A._Highlight, A._Line, A.SourceLocation, A.Chain, A.Frame, A.LazyTrace, A.Trace, A.UnparsedFrame, A.StringScanner, A._SpanScannerState, A.AsciiGlyphSet, A.UnicodeGlyphSet, A.WatchEvent, A.ChangeType, A.AnySelectorVisitor0, A.SupportsAnything0, A.Argument0, A.ArgumentDeclaration0, A.ArgumentInvocation0, A.Value0, A.AsyncImporter0, A.AsyncBuiltInCallable0, A.AsyncEnvironment0, A._EnvironmentModule2, A._EvaluateVisitor2, A._ImportedCssVisitor2, A._EvaluationContext2, A.AsyncImportCache0, A.Parser1, A.AtRootQuery0, A.ParentStatement0, A.CssNode0, A.Selector0, A.BinaryOperationExpression0, A.BooleanExpression0, A.Box0, A.ModifiableBox0, A.BuiltInCallable0, A.BuiltInModule0, A.CalculationOperation0, A.CalculationInterpolation, A.CanonicalizeContext0, A._CloneCssVisitor0, A.ColorExpression0, A._ColorFormatEnum0, A.SpanColorFormat0, A.CompileResult0, A.Compiler, A.ComplexSelectorComponent0, A.Configuration0, A.ConfiguredValue0, A.ConfiguredVariable0, A.ContentRule0, A.DebugRule0, A.SupportsDeclaration0, A.LoggerWithDeprecationType, A.DynamicImport0, A.EmptyExtensionStore0, A.Environment0, A._EnvironmentModule1, A.ErrorRule0, A._EvaluateVisitor1, A._ImportedCssVisitor1, A._EvaluationContext1, A.EveryCssVisitor0, A.SassScriptException0, A._IsCalculationSafeVisitor0, A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor0, A.ExtendRule0, A.Extension0, A.Extender0, A.ExtensionStore0, A.ForwardRule0, A.ForwardedModuleView0, A.FunctionExpression0, A.SupportsFunction0, A.IfExpression0, A.IfRule0, A.IfRuleClause0, A.NodeImporter, A.ImportCache0, A.ImportRule0, A.IncludeRule0, A.InterpolatedFunctionExpression0, A.Interpolation0, A.SupportsInterpolation0, A.InterpolationBuffer0, A.InterpolationMap0, A.FileSystemException0, A.LazyFileSpan0, A.ListExpression0, A.__ParentSelectorVisitor_Object_SelectorSearchVisitor0, A._QuietLogger0, A.LoudComment0, A.MapExpression0, A.CssMediaQuery0, A.MediaQuerySuccessfulMergeResult0, A.__HasContentVisitor_Object_StatementSearchVisitor0, A.MultiSpan0, A.SupportsNegation0, A.NoSourceMapBuffer0, A._FakeAstNode0, A.__IsInvisibleVisitor_Object_EveryCssVisitor0, A.NullExpression0, A.NumberExpression0, A.SupportsOperation0, A.ParenthesizedExpression0, A.PlainCssCallable0, A.QualifiedName0, A.ReplaceExpressionVisitor0, A.ImporterResult0, A.ReturnRule0, A.__IsInvisibleVisitor_Object_AnySelectorVisitor0, A.__IsBogusVisitor_Object_AnySelectorVisitor0, A.__IsUselessVisitor_Object_AnySelectorVisitor0, A.SelectorExpression0, A.SelectorSearchVisitor0, A._SerializeVisitor0, A.ShadowedModuleView0, A.SilentComment0, A.SourceMapBuffer0, A.StatementSearchVisitor0, A.StaticImport0, A.StderrLogger0, A.StringExpression0, A.SupportsExpression0, A.UnaryOperationExpression0, A.UseRule0, A.UserDefinedCallable0, A.CssValue0, A.ValueExpression0, A.VariableExpression0, A.VariableDeclaration0, A.WarnRule0]);
+    _inheritMany(J.Interceptor, [J.JSBool, J.JSNull, J.JavaScriptObject, J.JavaScriptBigInt, J.JavaScriptSymbol, J.JSNumber, J.JSString]);
+    _inheritMany(J.JavaScriptObject, [J.LegacyJavaScriptObject, J.JSArray, A.NativeByteBuffer, A.NativeTypedData]);
+    _inheritMany(J.LegacyJavaScriptObject, [J.PlainJavaScriptObject, J.UnknownJavaScriptObject, J.JavaScriptFunction, A.Stdin, A.Stdout, A.ReadlineModule, A.ReadlineOptions, A.ReadlineInterface, A.BufferModule, A.BufferConstants, A.Buffer, A.ConsoleModule, A.Console, A.EventEmitter, A.FS, A.FSConstants, A.FSWatcher, A.ReadStream, A.ReadStreamOptions, A.WriteStream, A.WriteStreamOptions, A.FileOptions, A.StatOptions, A.MkdirOptions, A.RmdirOptions, A.WatchOptions, A.WatchFileOptions, A.Stats, A.Promise, A.Date, A.JsError, A.Atomics, A.Modules, A.Module, A.Net, A.Socket, A.NetAddress, A.NetServer, A.NodeJsError, A.Process, A.CPUUsage, A.Release, A.StreamModule, A.Readable, A.Writable, A.Duplex, A.Transform, A.WritableOptions, A.ReadableOptions, A.Immediate, A.Timeout, A.TTY, A.Util, A.JSArray0, A.Chokidar, A.ChokidarOptions, A.ChokidarWatcher, A.JSFunction, A.ImmutableList, A.ImmutableMap, A.NodeImporterResult, A.RenderContext, A.RenderContextOptions, A.RenderContextResult, A.RenderContextResultStats, A.JSModule, A.JSModuleRequire, A.JSClass, A.JSUrl, A._PropertyDescriptor, A._RequireMain, A.JSArray1, A.Chokidar0, A.ChokidarOptions0, A.ChokidarWatcher0, A._Channels, A._NodeSassColor, A.CompileOptions, A.NodeCompileResult, A.Deprecation1, A.Exports, A.LoggerNamespace, A.FiberClass, A.Fiber, A.JSFunction0, A.ImmutableList0, A.ImmutableMap0, A.JSImporter, A.JSImporterResult, A.NodeImporterResult0, A._ConstructorOptions, A._NodeSassList, A.JSLogger, A.WarnOptions, A.DebugOptions, A._NodeSassMap, A.JSModule0, A.JSModuleRequire0, A._ConstructorOptions0, A._NodeSassNumber, A.JSClass0, A.RenderContext0, A.RenderContextOptions0, A.RenderContextResult0, A.RenderContextResultStats0, A.RenderOptions, A.RenderResult, A.RenderResultStats, A._Exports, A._ConstructorOptions1, A._NodeSassString, A.Types, A.JSUrl0, A._PropertyDescriptor0, A._RequireMain0]);
+    _inherit(J.JSUnmodifiableArray, J.JSArray);
+    _inheritMany(J.JSNumber, [J.JSInt, J.JSNumNotInt]);
+    _inheritMany(A.Iterable, [A._CastIterableBase, A.EfficientLengthIterable, A.MappedIterable, A.WhereIterable, A.ExpandIterable, A.TakeIterable, A.SkipIterable, A.SkipWhileIterable, A.FollowedByIterable, A.WhereTypeIterable, A._KeysOrValues, A._AllMatchesIterable, A._StringAllMatchesIterable, A._SyncStarIterable, A.Runes, A._EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin, A._PrefixedKeys, A._UnprefixedKeys, A._PrefixedKeys0, A._UnprefixedKeys0]);
+    _inheritMany(A._CastIterableBase, [A.CastIterable, A.__CastListBase__CastIterableBase_ListMixin, A.CastSet]);
+    _inherit(A._EfficientLengthCastIterable, A.CastIterable);
+    _inherit(A._CastListBase, A.__CastListBase__CastIterableBase_ListMixin);
+    _inheritMany(A.Closure, [A.Closure2Args, A.CastMap_entries_closure, A.Closure0Args, A.Instantiation, A.TearOffClosure, A.JsLinkedHashMap_values_closure, A.initHooks_closure, A.initHooks_closure1, A._AsyncRun__initializeScheduleImmediate_internalCallback, A._AsyncRun__initializeScheduleImmediate_closure, A._awaitOnObject_closure, A.Future_wait_closure, A._Future__chainForeignFuture_closure, A._Future__propagateToListeners_handleWhenCompleteCallback_closure, A.Stream_Stream$fromFuture_closure, A.Stream_length_closure, A._CustomZone_bindUnaryCallback_closure, A._RootZone_bindUnaryCallback_closure, A._HashMap_values_closure, A._LinkedCustomHashMap_closure, A.MapBase_entries_closure, A._JsonMap_values_closure, A._Uri__makePath_closure, A._createTables_setChars, A._createTables_setRange, A.jsify__convert, A.promiseToFuture_closure1, A.promiseToFuture_closure2, A.ArgParser__addOption_closure, A._Usage__writeOption_closure, A._Usage__buildAllowedList_closure, A.FutureGroup_add_closure, A.StreamGroup__onListen_closure, A.StreamGroup__onCancel_closure, A.StreamQueue__ensureListening_closure, A.alwaysValid_closure, A.ReplAdapter_runAsync__closure, A.UnionSet__iterable_closure, A.UnionSet_contains_closure, A.MapKeySet_difference_closure, A.promiseToFuture_closure, A.promiseToFuture_closure0, A.futureToPromise__closure, A.Context_joinAll_closure, A.Context_split_closure, A._validateArgList_closure, A.ParsedPath__splitExtension_closure, A.PathMap__create_closure0, A.PathMap__create_closure1, A.WindowsStyle_absolutePathToUri_closure, A.Version__splitParts_closure, A.ModifiableCssNode_hasFollowingSibling_closure, A.ArgumentDeclaration_verify_closure, A.ArgumentDeclaration_verify_closure0, A._IsCalculationSafeVisitor_visitListExpression_closure, A.ListExpression_toString_closure, A.Interpolation_toString_closure, A.EachRule_toString_closure, A.IfRuleClause$__closure, A.IfRuleClause$___closure, A.ParentStatement_closure, A.ParentStatement__closure, A._IsBogusVisitor_visitComplexSelector_closure, A._IsUselessVisitor_visitComplexSelector_closure, A.ComplexSelectorComponent_toString_closure, A.IDSelector_unify_closure, A.SelectorList_asSassList_closure, A.SelectorList_nestWithin_closure, A.SelectorList_nestWithin__closure, A.SelectorList_nestWithin__closure0, A.SelectorList__nestWithinCompound_closure, A.SelectorList__nestWithinCompound_closure0, A.SelectorList__nestWithinCompound_closure1, A.SelectorList_withAdditionalCombinators_closure, A.PseudoSelector_specificity__closure, A.PseudoSelector_specificity__closure0, A.PseudoSelector_unify_closure, A.SimpleSelector_isSuperselector_closure, A.SimpleSelector_isSuperselector__closure, A._compileStylesheet_closure0, A.AsyncEnvironment__getVariableFromGlobalModule_closure, A.AsyncEnvironment_setVariable_closure0, A.AsyncEnvironment__getFunctionFromGlobalModule_closure, A.AsyncEnvironment__getMixinFromGlobalModule_closure, A.AsyncEnvironment_toModule_closure, A.AsyncEnvironment_toDummyModule_closure, A._EnvironmentModule__EnvironmentModule_closure5, A._EnvironmentModule__EnvironmentModule_closure6, A._EnvironmentModule__EnvironmentModule_closure7, A._EnvironmentModule__EnvironmentModule_closure8, A._EnvironmentModule__EnvironmentModule_closure9, A._EnvironmentModule__EnvironmentModule_closure10, A.AsyncImportCache_humanize_closure, A.AsyncImportCache_humanize_closure0, A.AsyncImportCache_humanize_closure1, A.AsyncImportCache_humanize_closure2, A.AsyncBuiltInCallable$mixin_closure, A.BuiltInCallable$mixin_closure, A._compileStylesheet_closure, A.Deprecation_fromId_closure, A.Environment__getVariableFromGlobalModule_closure, A.Environment_setVariable_closure0, A.Environment__getFunctionFromGlobalModule_closure, A.Environment__getMixinFromGlobalModule_closure, A.Environment_toModule_closure, A.Environment_toDummyModule_closure, A._EnvironmentModule__EnvironmentModule_closure, A._EnvironmentModule__EnvironmentModule_closure0, A._EnvironmentModule__EnvironmentModule_closure1, A._EnvironmentModule__EnvironmentModule_closure2, A._EnvironmentModule__EnvironmentModule_closure3, A._EnvironmentModule__EnvironmentModule_closure4, A._writeSourceMap_closure, A.ExecutableOptions_emitErrorCss_closure, A.watch_closure, A._Watcher__debounceEvents_closure, A.ExtensionStore_extensionsWhereTarget_closure, A.ExtensionStore__extendComplex_closure, A.ExtensionStore__extendComplex__closure, A.ExtensionStore__extendCompound_closure, A.ExtensionStore__extendCompound_closure0, A.ExtensionStore__extendCompound_closure1, A.ExtensionStore__extendSimple_withoutPseudo, A.ExtensionStore__extendSimple_closure, A.ExtensionStore__extendSimple_closure0, A.ExtensionStore__extendPseudo_closure, A.ExtensionStore__extendPseudo_closure0, A.ExtensionStore__extendPseudo_closure1, A.ExtensionStore__extendPseudo_closure2, A.ExtensionStore__extendPseudo_closure3, A.ExtensionStore__trim_closure, A.ExtensionStore__trim_closure0, A.unifyComplex_closure, A._weaveParents_closure0, A._weaveParents_closure1, A._weaveParents_closure2, A._mustUnify_closure, A._mustUnify__closure, A.paths__closure, A.paths___closure, A.listIsSuperselector_closure, A.listIsSuperselector__closure, A.complexIsSuperselector_closure, A.complexIsSuperselector_closure0, A._compatibleWithPreviousCombinator_closure, A._selectorPseudoIsSuperselector_closure, A._selectorPseudoIsSuperselector_closure0, A._selectorPseudoIsSuperselector_closure1, A._selectorPseudoIsSuperselector_closure2, A._selectorPseudoIsSuperselector_closure3, A._selectorPseudoIsSuperselector__closure, A._selectorPseudoIsSuperselector___closure, A._selectorPseudoIsSuperselector___closure0, A._selectorPseudoIsSuperselector_closure4, A._selectorPseudoIsSuperselector_closure5, A._selectorPseudoArgs_closure, A._selectorPseudoArgs_closure0, A.globalFunctions_closure, A.global_closure0, A.global_closure1, A.global_closure2, A.global_closure3, A.global_closure4, A.global_closure5, A.global_closure6, A.global_closure7, A.global_closure8, A.global_closure9, A.global_closure10, A.global_closure11, A.global_closure12, A.global_closure13, A.global_closure14, A.global_closure15, A.global_closure16, A.global_closure17, A.global_closure18, A.global_closure19, A.global_closure20, A.global_closure21, A.global_closure22, A.global_closure23, A.global_closure24, A.global_closure25, A.global__closure, A.global_closure26, A.module_closure1, A.module_closure2, A.module_closure3, A.module_closure4, A.module_closure5, A.module_closure6, A.module_closure7, A.module_closure8, A.module__closure1, A.module_closure9, A._red_closure, A._green_closure, A._blue_closure, A._mix_closure, A._hue_closure, A._saturation_closure, A._lightness_closure, A._complement_closure, A._adjust_closure, A._scale_closure, A._change_closure, A._ieHexStr_closure, A._ieHexStr_closure_hexString, A._updateComponents_getParam, A._updateComponents_closure, A._updateComponents_closure0, A._updateComponents_updateValue, A._functionString_closure, A._removedColorFunction_closure, A._rgb_closure, A._hsl_closure, A._hwb_closure, A._parseChannels_closure, A._length_closure0, A._nth_closure, A._setNth_closure, A._join_closure, A._append_closure0, A._zip_closure, A._zip__closure, A._zip__closure0, A._zip__closure1, A._index_closure0, A._separator_closure, A._isBracketed_closure, A._slash_closure, A._get_closure, A._set_closure, A._set__closure0, A._set_closure0, A._set__closure, A._merge_closure, A._merge_closure0, A._merge__closure, A._deepMerge_closure, A._deepRemove_closure, A._deepRemove__closure, A._remove_closure, A._remove_closure0, A._keys_closure, A._values_closure, A._hasKey_closure, A._modify_modifyNestedMap, A.global_closure, A.module_closure0, A._ceil_closure, A._clamp_closure, A._floor_closure, A._max_closure, A._min_closure, A._round_closure, A._hypot_closure, A._hypot__closure, A._log_closure, A._pow_closure, A._atan2_closure, A._compatible_closure, A._isUnitless_closure, A._unit_closure, A._percentage_closure, A._randomFunction_closure, A._div_closure, A._singleArgumentMathFunc_closure, A._numberFunction_closure, A.global_closure27, A.global_closure28, A.global_closure29, A.global_closure30, A.local_closure, A.local_closure0, A.local__closure, A.local_closure1, A._nest_closure, A._nest__closure, A._append_closure, A._append__closure, A._append___closure, A._extend_closure, A._replace_closure, A._unify_closure, A._isSuperselector_closure, A._simpleSelectors_closure, A._simpleSelectors__closure, A._parse_closure, A.module_closure, A.module__closure, A.module__closure0, A._unquote_closure, A._quote_closure, A._length_closure, A._insert_closure, A._index_closure, A._slice_closure, A._toUpperCase_closure, A._toLowerCase_closure, A._uniqueId_closure, A.ImportCache_humanize_closure, A.ImportCache_humanize_closure0, A.ImportCache_humanize_closure1, A.ImportCache_humanize_closure2, A.FilesystemImporter_canonicalize_closure, A.NodePackageImporter__nodePackageExportsResolve_closure, A.NodePackageImporter__nodePackageExportsResolve_closure0, A.NodePackageImporter__nodePackageExportsResolve_closure1, A.NodePackageImporter__nodePackageExportsResolve_closure2, A.NodePackageImporter__nodePackageExportsResolve__closure, A.NodePackageImporter__nodePackageExportsResolve__closure0, A.NodePackageImporter__getMainExport_closure, A._exactlyOne_closure, A.InterpolationMap_mapException_closure, A._realCasePath_helper, A._realCasePath_helper__closure, A.readStdin_closure, A.readStdin_closure0, A.readStdin_closure1, A.readStdin_closure2, A.listDir__closure, A.listDir__closure0, A.listDir_closure_list, A.listDir__list_closure, A.watchDir_closure, A.watchDir_closure0, A.watchDir_closure1, A.watchDir_closure2, A.DeprecationProcessingLogger_summarize_closure, A.DeprecationProcessingLogger_summarize_closure0, A._disallowedFunctionNames_closure, A.Parser_escape_closure, A.Parser_scanIdentChar_matches, A.SassParser_styleRuleSelector_closure, A.SassParser__peekIndentation_closure, A.SassParser__peekIndentation_closure0, A.StylesheetParser_parse__closure0, A.StylesheetParser__expression_addSingleExpression, A.StylesheetParser__expression_addOperator, A.StylesheetParser__isHexColor_closure, A.StylesheetParser__unicodeRange_closure, A.StylesheetParser__unicodeRange_closure0, A.StylesheetParser_trySpecialFunction_closure, A.StylesheetGraph_modifiedSince_transitiveModificationTime, A.MapExtensions_get_pairs_closure, A._PrefixedKeys_iterator_closure, A.SourceMapBuffer_buildSourceMap_closure, A._UnprefixedKeys_iterator_closure, A._UnprefixedKeys_iterator_closure0, A.indent_closure, A.flattenVertically_closure, A.flattenVertically_closure0, A.SassCalculation__verifyLength_closure, A.SassColor_SassColor$hwb_toRgb, A.SassList_isBlank_closure, A.SassNumber__coerceOrConvertValue_closure, A.SassNumber__coerceOrConvertValue_closure1, A.SassNumber_multiplyUnits_closure, A.SassNumber_multiplyUnits_closure1, A.SassNumber__areAnyConvertible_closure, A.SassNumber__canonicalizeUnitList_closure, A.SassNumber_unitSuggestion_closure, A.SassNumber_unitSuggestion_closure0, A.SingleUnitSassNumber__coerceToUnit_closure, A.SingleUnitSassNumber__coerceValueToUnit_closure, A.SingleUnitSassNumber_multiplyUnits_closure, A.AnySelectorVisitor_visitComplexSelector_closure, A.AnySelectorVisitor_visitCompoundSelector_closure, A._EvaluateVisitor_closure12, A._EvaluateVisitor_closure13, A._EvaluateVisitor_closure14, A._EvaluateVisitor_closure15, A._EvaluateVisitor_closure16, A._EvaluateVisitor_closure17, A._EvaluateVisitor_closure18, A._EvaluateVisitor_closure19, A._EvaluateVisitor_closure20, A._EvaluateVisitor_closure21, A._EvaluateVisitor_closure22, A._EvaluateVisitor_closure23, A._EvaluateVisitor_closure24, A._EvaluateVisitor__loadModule__closure1, A._EvaluateVisitor__combineCss_closure1, A._EvaluateVisitor__combineCss_closure2, A._EvaluateVisitor__combineCss_visitModule0, A._EvaluateVisitor__extendModules_closure1, A._EvaluateVisitor__scopeForAtRoot_closure5, A._EvaluateVisitor__scopeForAtRoot_closure6, A._EvaluateVisitor__scopeForAtRoot_closure7, A._EvaluateVisitor__scopeForAtRoot_closure8, A._EvaluateVisitor__scopeForAtRoot_closure9, A._EvaluateVisitor__scopeForAtRoot_closure10, A._EvaluateVisitor_visitEachRule_closure2, A._EvaluateVisitor_visitEachRule_closure3, A._EvaluateVisitor_visitEachRule__closure0, A._EvaluateVisitor_visitEachRule___closure0, A._EvaluateVisitor_visitAtRule_closure2, A._EvaluateVisitor_visitAtRule_closure4, A._EvaluateVisitor_visitForRule__closure0, A._EvaluateVisitor_visitIfRule_closure0, A._EvaluateVisitor_visitIfRule___closure0, A._EvaluateVisitor__visitDynamicImport__closure3, A._EvaluateVisitor__visitDynamicImport__closure4, A._EvaluateVisitor__visitDynamicImport__closure5, A._EvaluateVisitor_visitIncludeRule_closure3, A._EvaluateVisitor_visitMediaRule_closure2, A._EvaluateVisitor_visitMediaRule_closure4, A._EvaluateVisitor_visitStyleRule_closure5, A._EvaluateVisitor_visitStyleRule_closure6, A._EvaluateVisitor_visitStyleRule_closure8, A._EvaluateVisitor_visitSupportsRule_closure2, A._EvaluateVisitor_visitWhileRule__closure0, A._EvaluateVisitor__slash_recommendation0, A._EvaluateVisitor_visitListExpression_closure0, A._EvaluateVisitor_visitFunctionExpression_closure3, A._EvaluateVisitor__checkCalculationArguments_check0, A._EvaluateVisitor__runUserDefinedCallable____closure0, A._EvaluateVisitor__runBuiltInCallable_closure4, A._EvaluateVisitor__evaluateArguments_closure3, A._EvaluateVisitor__evaluateArguments_closure4, A._EvaluateVisitor__evaluateArguments_closure6, A._EvaluateVisitor__evaluateMacroArguments_closure3, A._EvaluateVisitor__evaluateMacroArguments_closure4, A._EvaluateVisitor__evaluateMacroArguments_closure6, A._EvaluateVisitor_visitCssAtRule_closure2, A._EvaluateVisitor_visitCssKeyframeBlock_closure2, A._EvaluateVisitor_visitCssMediaRule_closure2, A._EvaluateVisitor_visitCssMediaRule_closure4, A._EvaluateVisitor_visitCssStyleRule_closure1, A._EvaluateVisitor_visitCssSupportsRule_closure2, A._EvaluateVisitor__performInterpolationHelper_closure0, A._EvaluateVisitor__withoutSlash_recommendation0, A._EvaluateVisitor__stackFrame_closure0, A._ImportedCssVisitor_visitCssAtRule_closure0, A._ImportedCssVisitor_visitCssMediaRule_closure0, A._ImportedCssVisitor_visitCssStyleRule_closure0, A._ImportedCssVisitor_visitCssSupportsRule_closure0, A._EvaluateVisitor_closure, A._EvaluateVisitor_closure0, A._EvaluateVisitor_closure1, A._EvaluateVisitor_closure2, A._EvaluateVisitor_closure3, A._EvaluateVisitor_closure4, A._EvaluateVisitor_closure5, A._EvaluateVisitor_closure6, A._EvaluateVisitor_closure7, A._EvaluateVisitor_closure8, A._EvaluateVisitor_closure9, A._EvaluateVisitor_closure10, A._EvaluateVisitor_closure11, A._EvaluateVisitor__loadModule__closure, A._EvaluateVisitor__combineCss_closure, A._EvaluateVisitor__combineCss_closure0, A._EvaluateVisitor__combineCss_visitModule, A._EvaluateVisitor__extendModules_closure, A._EvaluateVisitor__scopeForAtRoot_closure, A._EvaluateVisitor__scopeForAtRoot_closure0, A._EvaluateVisitor__scopeForAtRoot_closure1, A._EvaluateVisitor__scopeForAtRoot_closure2, A._EvaluateVisitor__scopeForAtRoot_closure3, A._EvaluateVisitor__scopeForAtRoot_closure4, A._EvaluateVisitor_visitEachRule_closure, A._EvaluateVisitor_visitEachRule_closure0, A._EvaluateVisitor_visitEachRule__closure, A._EvaluateVisitor_visitEachRule___closure, A._EvaluateVisitor_visitAtRule_closure, A._EvaluateVisitor_visitAtRule_closure1, A._EvaluateVisitor_visitForRule__closure, A._EvaluateVisitor_visitIfRule_closure, A._EvaluateVisitor_visitIfRule___closure, A._EvaluateVisitor__visitDynamicImport__closure, A._EvaluateVisitor__visitDynamicImport__closure0, A._EvaluateVisitor__visitDynamicImport__closure1, A._EvaluateVisitor_visitIncludeRule_closure0, A._EvaluateVisitor_visitMediaRule_closure, A._EvaluateVisitor_visitMediaRule_closure1, A._EvaluateVisitor_visitStyleRule_closure0, A._EvaluateVisitor_visitStyleRule_closure1, A._EvaluateVisitor_visitStyleRule_closure3, A._EvaluateVisitor_visitSupportsRule_closure0, A._EvaluateVisitor_visitWhileRule__closure, A._EvaluateVisitor__slash_recommendation, A._EvaluateVisitor_visitListExpression_closure, A._EvaluateVisitor_visitFunctionExpression_closure0, A._EvaluateVisitor__checkCalculationArguments_check, A._EvaluateVisitor__runUserDefinedCallable____closure, A._EvaluateVisitor__runBuiltInCallable_closure1, A._EvaluateVisitor__evaluateArguments_closure, A._EvaluateVisitor__evaluateArguments_closure0, A._EvaluateVisitor__evaluateArguments_closure2, A._EvaluateVisitor__evaluateMacroArguments_closure, A._EvaluateVisitor__evaluateMacroArguments_closure0, A._EvaluateVisitor__evaluateMacroArguments_closure2, A._EvaluateVisitor_visitCssAtRule_closure0, A._EvaluateVisitor_visitCssKeyframeBlock_closure0, A._EvaluateVisitor_visitCssMediaRule_closure, A._EvaluateVisitor_visitCssMediaRule_closure1, A._EvaluateVisitor_visitCssStyleRule_closure, A._EvaluateVisitor_visitCssSupportsRule_closure0, A._EvaluateVisitor__performInterpolationHelper_closure, A._EvaluateVisitor__withoutSlash_recommendation, A._EvaluateVisitor__stackFrame_closure, A._ImportedCssVisitor_visitCssAtRule_closure, A._ImportedCssVisitor_visitCssMediaRule_closure, A._ImportedCssVisitor_visitCssStyleRule_closure, A._ImportedCssVisitor_visitCssSupportsRule_closure, A.EveryCssVisitor_visitCssAtRule_closure, A.EveryCssVisitor_visitCssKeyframeBlock_closure, A.EveryCssVisitor_visitCssMediaRule_closure, A.EveryCssVisitor_visitCssStyleRule_closure, A.EveryCssVisitor_visitCssStylesheet_closure, A.EveryCssVisitor_visitCssSupportsRule_closure, A.ReplaceExpressionVisitor_visitListExpression_closure, A.ReplaceExpressionVisitor_visitArgumentInvocation_closure, A.ReplaceExpressionVisitor_visitInterpolation_closure, A.SelectorSearchVisitor_visitComplexSelector_closure, A.SelectorSearchVisitor_visitCompoundSelector_closure, A.serialize_closure, A._SerializeVisitor_visitList_closure, A._SerializeVisitor_visitList_closure0, A._SerializeVisitor_visitList_closure1, A._SerializeVisitor_visitMap_closure, A._SerializeVisitor_visitSelectorList_closure, A.StatementSearchVisitor_visitIfRule_closure, A.StatementSearchVisitor_visitIfRule__closure0, A.StatementSearchVisitor_visitIfRule_closure0, A.StatementSearchVisitor_visitIfRule__closure, A.StatementSearchVisitor_visitChildren_closure, A.SingleMapping_SingleMapping$fromEntries_closure1, A.SingleMapping_toJson_closure, A.Highlighter$__closure, A.Highlighter$___closure, A.Highlighter$__closure0, A.Highlighter__collateLines_closure, A.Highlighter__collateLines_closure1, A.Highlighter__collateLines__closure, A.Highlighter_highlight_closure, A.Chain_Chain$parse_closure, A.Chain_toTrace_closure, A.Chain_toString_closure0, A.Chain_toString__closure0, A.Chain_toString_closure, A.Chain_toString__closure, A.Trace__parseVM_closure, A.Trace$parseV8_closure, A.Trace$parseJSCore_closure, A.Trace$parseFirefox_closure, A.Trace$parseFriendly_closure, A.Trace_terse_closure, A.Trace_foldFrames_closure, A.Trace_foldFrames_closure0, A.Trace_toString_closure0, A.Trace_toString_closure, A.TransformByHandlers_transformByHandlers__closure, A.RateLimit__debounceAggregate_closure0, A.AnySelectorVisitor_visitComplexSelector_closure0, A.AnySelectorVisitor_visitCompoundSelector_closure0, A.ArgumentDeclaration_verify_closure1, A.ArgumentDeclaration_verify_closure2, A.argumentListClass__closure, A.argumentListClass__closure0, A.AsyncBuiltInCallable$mixin_closure0, A._compileStylesheet_closure2, A.AsyncEnvironment__getVariableFromGlobalModule_closure0, A.AsyncEnvironment_setVariable_closure3, A.AsyncEnvironment__getFunctionFromGlobalModule_closure0, A.AsyncEnvironment__getMixinFromGlobalModule_closure0, A.AsyncEnvironment_toModule_closure0, A.AsyncEnvironment_toDummyModule_closure0, A._EnvironmentModule__EnvironmentModule_closure17, A._EnvironmentModule__EnvironmentModule_closure18, A._EnvironmentModule__EnvironmentModule_closure19, A._EnvironmentModule__EnvironmentModule_closure20, A._EnvironmentModule__EnvironmentModule_closure21, A._EnvironmentModule__EnvironmentModule_closure22, A._EvaluateVisitor_closure38, A._EvaluateVisitor_closure39, A._EvaluateVisitor_closure40, A._EvaluateVisitor_closure41, A._EvaluateVisitor_closure42, A._EvaluateVisitor_closure43, A._EvaluateVisitor_closure44, A._EvaluateVisitor_closure45, A._EvaluateVisitor_closure46, A._EvaluateVisitor_closure47, A._EvaluateVisitor_closure48, A._EvaluateVisitor_closure49, A._EvaluateVisitor_closure50, A._EvaluateVisitor__loadModule__closure5, A._EvaluateVisitor__combineCss_closure5, A._EvaluateVisitor__combineCss_closure6, A._EvaluateVisitor__combineCss_visitModule2, A._EvaluateVisitor__extendModules_closure5, A._EvaluateVisitor__scopeForAtRoot_closure17, A._EvaluateVisitor__scopeForAtRoot_closure18, A._EvaluateVisitor__scopeForAtRoot_closure19, A._EvaluateVisitor__scopeForAtRoot_closure20, A._EvaluateVisitor__scopeForAtRoot_closure21, A._EvaluateVisitor__scopeForAtRoot_closure22, A._EvaluateVisitor_visitEachRule_closure8, A._EvaluateVisitor_visitEachRule_closure9, A._EvaluateVisitor_visitEachRule__closure2, A._EvaluateVisitor_visitEachRule___closure2, A._EvaluateVisitor_visitAtRule_closure8, A._EvaluateVisitor_visitAtRule_closure10, A._EvaluateVisitor_visitForRule__closure2, A._EvaluateVisitor_visitIfRule_closure2, A._EvaluateVisitor_visitIfRule___closure2, A._EvaluateVisitor__visitDynamicImport__closure11, A._EvaluateVisitor__visitDynamicImport__closure12, A._EvaluateVisitor__visitDynamicImport__closure13, A._EvaluateVisitor_visitIncludeRule_closure9, A._EvaluateVisitor_visitMediaRule_closure8, A._EvaluateVisitor_visitMediaRule_closure10, A._EvaluateVisitor_visitStyleRule_closure15, A._EvaluateVisitor_visitStyleRule_closure16, A._EvaluateVisitor_visitStyleRule_closure18, A._EvaluateVisitor_visitSupportsRule_closure6, A._EvaluateVisitor_visitWhileRule__closure2, A._EvaluateVisitor__slash_recommendation2, A._EvaluateVisitor_visitListExpression_closure2, A._EvaluateVisitor_visitFunctionExpression_closure9, A._EvaluateVisitor__checkCalculationArguments_check2, A._EvaluateVisitor__runUserDefinedCallable____closure2, A._EvaluateVisitor__runBuiltInCallable_closure10, A._EvaluateVisitor__evaluateArguments_closure11, A._EvaluateVisitor__evaluateArguments_closure12, A._EvaluateVisitor__evaluateArguments_closure14, A._EvaluateVisitor__evaluateMacroArguments_closure11, A._EvaluateVisitor__evaluateMacroArguments_closure12, A._EvaluateVisitor__evaluateMacroArguments_closure14, A._EvaluateVisitor_visitCssAtRule_closure6, A._EvaluateVisitor_visitCssKeyframeBlock_closure6, A._EvaluateVisitor_visitCssMediaRule_closure8, A._EvaluateVisitor_visitCssMediaRule_closure10, A._EvaluateVisitor_visitCssStyleRule_closure5, A._EvaluateVisitor_visitCssSupportsRule_closure6, A._EvaluateVisitor__performInterpolationHelper_closure2, A._EvaluateVisitor__withoutSlash_recommendation2, A._EvaluateVisitor__stackFrame_closure2, A._ImportedCssVisitor_visitCssAtRule_closure2, A._ImportedCssVisitor_visitCssMediaRule_closure2, A._ImportedCssVisitor_visitCssStyleRule_closure2, A._ImportedCssVisitor_visitCssSupportsRule_closure2, A.AsyncImportCache_humanize_closure3, A.AsyncImportCache_humanize_closure4, A.AsyncImportCache_humanize_closure5, A.AsyncImportCache_humanize_closure6, A.booleanClass__closure, A.legacyBooleanClass__closure, A.legacyBooleanClass__closure0, A.BuiltInCallable$mixin_closure0, A.calculationClass__closure, A.calculationClass__closure0, A.calculationClass__closure1, A.calculationClass__closure2, A.calculationClass__closure3, A.calculationClass__closure4, A.calculationClass__closure5, A.calculationOperationClass__closure, A.calculationOperationClass___closure, A.calculationOperationClass__closure1, A.calculationOperationClass__closure2, A.calculationOperationClass__closure3, A.calculationOperationClass__closure4, A.calculationInterpolationClass__closure1, A.calculationInterpolationClass__closure2, A.SassCalculation__verifyLength_closure0, A.updateCanonicalizeContextPrototype_closure, A.updateCanonicalizeContextPrototype_closure0, A.global_closure32, A.global_closure33, A.global_closure34, A.global_closure35, A.global_closure36, A.global_closure37, A.global_closure38, A.global_closure39, A.global_closure40, A.global_closure41, A.global_closure42, A.global_closure43, A.global_closure44, A.global_closure45, A.global_closure46, A.global_closure47, A.global_closure48, A.global_closure49, A.global_closure50, A.global_closure51, A.global_closure52, A.global_closure53, A.global_closure54, A.global_closure55, A.global_closure56, A.global_closure57, A.global__closure0, A.global_closure58, A.module_closure12, A.module_closure13, A.module_closure14, A.module_closure15, A.module_closure16, A.module_closure17, A.module_closure18, A.module_closure19, A.module__closure4, A.module_closure20, A._red_closure0, A._green_closure0, A._blue_closure0, A._mix_closure0, A._hue_closure0, A._saturation_closure0, A._lightness_closure0, A._complement_closure0, A._adjust_closure0, A._scale_closure0, A._change_closure0, A._ieHexStr_closure0, A._ieHexStr_closure_hexString0, A._updateComponents_getParam0, A._updateComponents_closure1, A._updateComponents_closure2, A._updateComponents_updateValue0, A._functionString_closure0, A._removedColorFunction_closure0, A._rgb_closure0, A._hsl_closure0, A._hwb_closure0, A._parseChannels_closure0, A.colorClass__closure1, A.colorClass__closure2, A.colorClass__closure3, A.colorClass__closure4, A.colorClass__closure5, A.colorClass__closure6, A.colorClass__closure7, A.colorClass__closure8, A.colorClass__closure9, A.legacyColorClass_closure, A.legacyColorClass_closure0, A.legacyColorClass_closure1, A.legacyColorClass_closure2, A.legacyColorClass_closure3, A.SassColor_SassColor$hwb_toRgb0, A.compileAsync__closure, A.compileStringAsync__closure, A.compileStringAsync__closure0, A._wrapAsyncSassExceptions_closure, A._parseFunctions__closure2, A._parseFunctions__closure3, A.nodePackageImporterClass__closure, A._compileStylesheet_closure1, A.AsyncCompiler_addCompilation_closure, A.compilerClass__closure, A.compilerClass__closure0, A.compilerClass__closure1, A.compilerClass__closure2, A.asyncCompilerClass__closure, A.asyncCompilerClass__closure0, A.asyncCompilerClass__closure1, A.asyncCompilerClass__closure2, A.ComplexSelectorComponent_toString_closure0, A._disallowedFunctionNames_closure0, A.Deprecation_fromId_closure0, A.DeprecationProcessingLogger_summarize_closure1, A.DeprecationProcessingLogger_summarize_closure2, A.versionClass__closure, A.versionClass__closure0, A.EachRule_toString_closure0, A.Environment__getVariableFromGlobalModule_closure0, A.Environment_setVariable_closure3, A.Environment__getFunctionFromGlobalModule_closure0, A.Environment__getMixinFromGlobalModule_closure0, A.Environment_toModule_closure0, A.Environment_toDummyModule_closure0, A._EnvironmentModule__EnvironmentModule_closure11, A._EnvironmentModule__EnvironmentModule_closure12, A._EnvironmentModule__EnvironmentModule_closure13, A._EnvironmentModule__EnvironmentModule_closure14, A._EnvironmentModule__EnvironmentModule_closure15, A._EnvironmentModule__EnvironmentModule_closure16, A._EvaluateVisitor_closure25, A._EvaluateVisitor_closure26, A._EvaluateVisitor_closure27, A._EvaluateVisitor_closure28, A._EvaluateVisitor_closure29, A._EvaluateVisitor_closure30, A._EvaluateVisitor_closure31, A._EvaluateVisitor_closure32, A._EvaluateVisitor_closure33, A._EvaluateVisitor_closure34, A._EvaluateVisitor_closure35, A._EvaluateVisitor_closure36, A._EvaluateVisitor_closure37, A._EvaluateVisitor__loadModule__closure3, A._EvaluateVisitor__combineCss_closure3, A._EvaluateVisitor__combineCss_closure4, A._EvaluateVisitor__combineCss_visitModule1, A._EvaluateVisitor__extendModules_closure3, A._EvaluateVisitor__scopeForAtRoot_closure11, A._EvaluateVisitor__scopeForAtRoot_closure12, A._EvaluateVisitor__scopeForAtRoot_closure13, A._EvaluateVisitor__scopeForAtRoot_closure14, A._EvaluateVisitor__scopeForAtRoot_closure15, A._EvaluateVisitor__scopeForAtRoot_closure16, A._EvaluateVisitor_visitEachRule_closure5, A._EvaluateVisitor_visitEachRule_closure6, A._EvaluateVisitor_visitEachRule__closure1, A._EvaluateVisitor_visitEachRule___closure1, A._EvaluateVisitor_visitAtRule_closure5, A._EvaluateVisitor_visitAtRule_closure7, A._EvaluateVisitor_visitForRule__closure1, A._EvaluateVisitor_visitIfRule_closure1, A._EvaluateVisitor_visitIfRule___closure1, A._EvaluateVisitor__visitDynamicImport__closure7, A._EvaluateVisitor__visitDynamicImport__closure8, A._EvaluateVisitor__visitDynamicImport__closure9, A._EvaluateVisitor_visitIncludeRule_closure6, A._EvaluateVisitor_visitMediaRule_closure5, A._EvaluateVisitor_visitMediaRule_closure7, A._EvaluateVisitor_visitStyleRule_closure10, A._EvaluateVisitor_visitStyleRule_closure11, A._EvaluateVisitor_visitStyleRule_closure13, A._EvaluateVisitor_visitSupportsRule_closure4, A._EvaluateVisitor_visitWhileRule__closure1, A._EvaluateVisitor__slash_recommendation1, A._EvaluateVisitor_visitListExpression_closure1, A._EvaluateVisitor_visitFunctionExpression_closure6, A._EvaluateVisitor__checkCalculationArguments_check1, A._EvaluateVisitor__runUserDefinedCallable____closure1, A._EvaluateVisitor__runBuiltInCallable_closure7, A._EvaluateVisitor__evaluateArguments_closure7, A._EvaluateVisitor__evaluateArguments_closure8, A._EvaluateVisitor__evaluateArguments_closure10, A._EvaluateVisitor__evaluateMacroArguments_closure7, A._EvaluateVisitor__evaluateMacroArguments_closure8, A._EvaluateVisitor__evaluateMacroArguments_closure10, A._EvaluateVisitor_visitCssAtRule_closure4, A._EvaluateVisitor_visitCssKeyframeBlock_closure4, A._EvaluateVisitor_visitCssMediaRule_closure5, A._EvaluateVisitor_visitCssMediaRule_closure7, A._EvaluateVisitor_visitCssStyleRule_closure3, A._EvaluateVisitor_visitCssSupportsRule_closure4, A._EvaluateVisitor__performInterpolationHelper_closure1, A._EvaluateVisitor__withoutSlash_recommendation1, A._EvaluateVisitor__stackFrame_closure1, A._ImportedCssVisitor_visitCssAtRule_closure1, A._ImportedCssVisitor_visitCssMediaRule_closure1, A._ImportedCssVisitor_visitCssStyleRule_closure1, A._ImportedCssVisitor_visitCssSupportsRule_closure1, A.EveryCssVisitor_visitCssAtRule_closure0, A.EveryCssVisitor_visitCssKeyframeBlock_closure0, A.EveryCssVisitor_visitCssMediaRule_closure0, A.EveryCssVisitor_visitCssStyleRule_closure0, A.EveryCssVisitor_visitCssStylesheet_closure0, A.EveryCssVisitor_visitCssSupportsRule_closure0, A.exceptionClass__closure, A.exceptionClass__closure0, A.exceptionClass__closure1, A._IsCalculationSafeVisitor_visitListExpression_closure0, A.ExtensionStore_extensionsWhereTarget_closure0, A.ExtensionStore__extendComplex_closure0, A.ExtensionStore__extendComplex__closure0, A.ExtensionStore__extendCompound_closure2, A.ExtensionStore__extendCompound_closure3, A.ExtensionStore__extendCompound_closure4, A.ExtensionStore__extendSimple_withoutPseudo0, A.ExtensionStore__extendSimple_closure1, A.ExtensionStore__extendSimple_closure2, A.ExtensionStore__extendPseudo_closure4, A.ExtensionStore__extendPseudo_closure5, A.ExtensionStore__extendPseudo_closure6, A.ExtensionStore__extendPseudo_closure7, A.ExtensionStore__extendPseudo_closure8, A.ExtensionStore__trim_closure1, A.ExtensionStore__trim_closure2, A.FilesystemImporter_canonicalize_closure0, A.functionClass__closure, A.functionClass__closure0, A.unifyComplex_closure0, A._weaveParents_closure4, A._weaveParents_closure5, A._weaveParents_closure6, A._mustUnify_closure0, A._mustUnify__closure0, A.paths__closure0, A.paths___closure0, A.listIsSuperselector_closure0, A.listIsSuperselector__closure0, A.complexIsSuperselector_closure1, A.complexIsSuperselector_closure2, A._compatibleWithPreviousCombinator_closure0, A._selectorPseudoIsSuperselector_closure6, A._selectorPseudoIsSuperselector_closure7, A._selectorPseudoIsSuperselector_closure8, A._selectorPseudoIsSuperselector_closure9, A._selectorPseudoIsSuperselector_closure10, A._selectorPseudoIsSuperselector__closure0, A._selectorPseudoIsSuperselector___closure1, A._selectorPseudoIsSuperselector___closure2, A._selectorPseudoIsSuperselector_closure11, A._selectorPseudoIsSuperselector_closure12, A._selectorPseudoArgs_closure1, A._selectorPseudoArgs_closure2, A.globalFunctions_closure0, A.IDSelector_unify_closure0, A.IfRuleClause$__closure0, A.IfRuleClause$___closure0, A.immutableMapToDartMap_closure, A.NodeImporter__tryPath_closure0, A.ImportCache_humanize_closure3, A.ImportCache_humanize_closure4, A.ImportCache_humanize_closure5, A.ImportCache_humanize_closure6, A.Interpolation_toString_closure0, A.InterpolationMap_mapException_closure0, A._realCasePath_helper0, A._realCasePath_helper__closure0, A.listDir__closure1, A.listDir__closure2, A.listDir_closure_list0, A.listDir__list_closure0, A.render_closure0, A._parseFunctions__closure, A._parseFunctions___closure2, A._parseFunctions__closure0, A._parseFunctions__closure1, A._parseFunctions___closure, A._parseImporter_closure, A._parseImporter__closure, A._parseImporter___closure, A.ListExpression_toString_closure0, A._length_closure2, A._nth_closure0, A._setNth_closure0, A._join_closure0, A._append_closure2, A._zip_closure0, A._zip__closure2, A._zip__closure3, A._zip__closure4, A._index_closure2, A._separator_closure0, A._isBracketed_closure0, A._slash_closure0, A.SelectorList_asSassList_closure0, A.SelectorList_nestWithin_closure0, A.SelectorList_nestWithin__closure1, A.SelectorList_nestWithin__closure2, A.SelectorList__nestWithinCompound_closure2, A.SelectorList__nestWithinCompound_closure3, A.SelectorList__nestWithinCompound_closure4, A.SelectorList_withAdditionalCombinators_closure0, A.listClass__closure, A.legacyListClass_closure, A.legacyListClass__closure, A.legacyListClass_closure1, A.legacyListClass_closure2, A.legacyListClass_closure4, A.SassList_isBlank_closure0, A._get_closure0, A._set_closure1, A._set__closure2, A._set_closure2, A._set__closure1, A._merge_closure1, A._merge_closure2, A._merge__closure0, A._deepMerge_closure0, A._deepRemove_closure0, A._deepRemove__closure0, A._remove_closure1, A._remove_closure2, A._keys_closure0, A._values_closure0, A._hasKey_closure0, A._modify_modifyNestedMap0, A.MapExtensions_get_pairs_closure0, A.mapClass__closure, A.mapClass__closure0, A.legacyMapClass_closure, A.legacyMapClass__closure, A.legacyMapClass__closure0, A.legacyMapClass_closure2, A.legacyMapClass_closure3, A.legacyMapClass_closure4, A.global_closure31, A.module_closure11, A._ceil_closure0, A._clamp_closure0, A._floor_closure0, A._max_closure0, A._min_closure0, A._round_closure0, A._hypot_closure0, A._hypot__closure0, A._log_closure0, A._pow_closure0, A._atan2_closure0, A._compatible_closure0, A._isUnitless_closure0, A._unit_closure0, A._percentage_closure0, A._randomFunction_closure0, A._div_closure0, A._singleArgumentMathFunc_closure0, A._numberFunction_closure0, A.global_closure59, A.global_closure60, A.global_closure61, A.global_closure62, A.local_closure2, A.local_closure3, A.local__closure0, A.local_closure4, A.mixinClass__closure, A.mixinClass__closure0, A.ModifiableCssNode_hasFollowingSibling_closure0, A.NodePackageImporter__nodePackageExportsResolve_closure3, A.NodePackageImporter__nodePackageExportsResolve_closure4, A.NodePackageImporter__nodePackageExportsResolve_closure5, A.NodePackageImporter__nodePackageExportsResolve_closure6, A.NodePackageImporter__nodePackageExportsResolve__closure1, A.NodePackageImporter__nodePackageExportsResolve__closure2, A.NodePackageImporter__getMainExport_closure0, A.legacyNullClass__closure, A.numberClass__closure, A.numberClass__closure0, A.numberClass__closure1, A.numberClass__closure2, A.numberClass__closure3, A.numberClass__closure4, A.numberClass__closure5, A.numberClass__closure6, A.numberClass__closure7, A.numberClass__closure8, A.numberClass__closure9, A.numberClass__closure12, A.numberClass__closure13, A.numberClass__closure14, A.numberClass__closure15, A.numberClass__closure16, A.numberClass__closure17, A.numberClass__closure18, A.numberClass__closure19, A.legacyNumberClass_closure, A.legacyNumberClass_closure0, A.legacyNumberClass_closure2, A._parseNumber_closure, A._parseNumber_closure0, A.SassNumber__coerceOrConvertValue_closure3, A.SassNumber__coerceOrConvertValue_closure5, A.SassNumber_multiplyUnits_closure3, A.SassNumber_multiplyUnits_closure5, A.SassNumber__areAnyConvertible_closure0, A.SassNumber__canonicalizeUnitList_closure0, A.SassNumber_unitSuggestion_closure1, A.SassNumber_unitSuggestion_closure2, A.ParentStatement_closure0, A.ParentStatement__closure0, A.Parser_escape_closure0, A.Parser_scanIdentChar_matches0, A._PrefixedKeys_iterator_closure0, A.PseudoSelector_specificity__closure1, A.PseudoSelector_specificity__closure2, A.PseudoSelector_unify_closure0, A.JSClassExtension_setCustomInspect_closure, A.ReplaceExpressionVisitor_visitListExpression_closure0, A.ReplaceExpressionVisitor_visitArgumentInvocation_closure0, A.ReplaceExpressionVisitor_visitInterpolation_closure0, A.SassParser_styleRuleSelector_closure0, A.SassParser__peekIndentation_closure1, A.SassParser__peekIndentation_closure2, A._wrapMain_closure, A._wrapMain_closure0, A._IsBogusVisitor_visitComplexSelector_closure0, A._IsUselessVisitor_visitComplexSelector_closure0, A._nest_closure0, A._nest__closure1, A._append_closure1, A._append__closure1, A._append___closure0, A._extend_closure0, A._replace_closure0, A._unify_closure0, A._isSuperselector_closure0, A._simpleSelectors_closure0, A._simpleSelectors__closure0, A._parse_closure0, A.SelectorSearchVisitor_visitComplexSelector_closure0, A.SelectorSearchVisitor_visitCompoundSelector_closure0, A.serialize_closure0, A._SerializeVisitor_visitList_closure2, A._SerializeVisitor_visitList_closure3, A._SerializeVisitor_visitList_closure4, A._SerializeVisitor_visitMap_closure0, A._SerializeVisitor_visitSelectorList_closure0, A.SimpleSelector_isSuperselector_closure0, A.SimpleSelector_isSuperselector__closure0, A.SingleUnitSassNumber__coerceToUnit_closure0, A.SingleUnitSassNumber__coerceValueToUnit_closure0, A.SingleUnitSassNumber_multiplyUnits_closure1, A.SourceMapBuffer_buildSourceMap_closure0, A.updateSourceSpanPrototype_closure0, A.updateSourceSpanPrototype_closure1, A.updateSourceSpanPrototype_closure2, A.updateSourceSpanPrototype_closure3, A.updateSourceSpanPrototype_closure4, A.updateSourceSpanPrototype_closure5, A.updateSourceSpanPrototype_closure6, A.StatementSearchVisitor_visitIfRule_closure1, A.StatementSearchVisitor_visitIfRule__closure2, A.StatementSearchVisitor_visitIfRule_closure2, A.StatementSearchVisitor_visitIfRule__closure1, A.StatementSearchVisitor_visitChildren_closure0, A.module_closure10, A.module__closure2, A.module__closure3, A._unquote_closure0, A._quote_closure0, A._length_closure1, A._insert_closure0, A._index_closure1, A._slice_closure0, A._toUpperCase_closure0, A._toLowerCase_closure0, A._uniqueId_closure0, A.stringClass__closure, A.stringClass__closure0, A.stringClass__closure1, A.stringClass__closure2, A.stringClass__closure3, A.legacyStringClass_closure, A.legacyStringClass_closure0, A.StylesheetParser_parse__closure2, A.StylesheetParser__expression_addSingleExpression0, A.StylesheetParser__expression_addOperator0, A.StylesheetParser__isHexColor_closure0, A.StylesheetParser__unicodeRange_closure1, A.StylesheetParser__unicodeRange_closure2, A.StylesheetParser_trySpecialFunction_closure0, A._UnprefixedKeys_iterator_closure1, A._UnprefixedKeys_iterator_closure2, A._exactlyOne_closure0, A.futureToPromise__closure0, A.indent_closure0, A.flattenVertically_closure1, A.flattenVertically_closure2, A.valueClass__closure, A.valueClass__closure0, A.valueClass__closure1, A.valueClass__closure2, A.valueClass__closure3, A.valueClass__closure4, A.valueClass__closure5, A.valueClass__closure7, A.valueClass__closure8, A.valueClass__closure9, A.valueClass__closure10, A.valueClass__closure11, A.valueClass__closure12, A.valueClass__closure13, A.valueClass__closure14, A.valueClass__closure15, A.valueClass__closure17, A.valueClass__closure18]);
+    _inheritMany(A.Closure2Args, [A._CastListBase_sort_closure, A.CastMap_forEach_closure, A.Primitives_functionNoSuchMethod_closure, A.JsLinkedHashMap_addAll_closure, A.initHooks_closure0, A._awaitOnObject_closure0, A._wrapJsFunctionForAsync_closure, A.Future_wait_handleError, A._Future__chainForeignFuture_closure0, A.Stream_Stream$fromFuture_closure0, A._AddStreamState_makeErrorHandler_closure, A._HashMap_addAll_closure, A.HashMap_HashMap$from_closure, A.LinkedHashMap_LinkedHashMap$from_closure, A.MapBase_addAll_closure, A.MapBase_mapToString_closure, A._JsonMap_addAll_closure, A._JsonStringifier_writeMap_closure, A.NoSuchMethodError_toString_closure, A.Uri__parseIPv4Address_error, A.Uri_parseIPv6Address_error, A.Uri_parseIPv6Address_parseHex, A._createTables_build, A.Parser_parse_closure, A.FutureGroup_add_closure0, A.StreamQueue__ensureListening_closure1, A.futureToPromise_closure, A.PathMap__create_closure, A.IfRule_toString_closure, A.ComplexSelector_specificity_closure, A.CompoundSelector_specificity_closure, A.ExtensionStore_clone_closure, A._weaveParents_closure, A.paths_closure, A._updateComponents_updateRgb, A._nest__closure0, A._append__closure0, A.ImportCache_clearCanonicalize_closure, A.StylesheetParser__styleRule_closure, A.StylesheetParser__tryDeclarationChildren_closure, A.StylesheetParser__atRootRule_closure, A.StylesheetParser__atRootRule_closure0, A.StylesheetParser__eachRule_closure, A.StylesheetParser__functionRule_closure, A.StylesheetParser__forRule_closure0, A.StylesheetParser__includeRule_closure, A.StylesheetParser_mediaRule_closure, A.StylesheetParser__mixinRule_closure, A.StylesheetParser_mozDocumentRule_closure, A.StylesheetParser_supportsRule_closure, A.StylesheetParser__whileRule_closure, A.StylesheetParser_unknownAtRule_closure, A.longestCommonSubsequence_backtrack, A.mapAddAll2_closure, A.SassNumber_plus_closure, A.SassNumber_minus_closure, A.SassNumber__canonicalMultiplier_closure, A._EvaluateVisitor__closure3, A._EvaluateVisitor__closure4, A._EvaluateVisitor_visitForwardRule_closure1, A._EvaluateVisitor_visitForwardRule_closure2, A._EvaluateVisitor_visitUseRule_closure0, A._EvaluateVisitor__evaluateArguments_closure5, A._EvaluateVisitor__evaluateMacroArguments_closure5, A._EvaluateVisitor__addRestMap_closure0, A._EvaluateVisitor__closure, A._EvaluateVisitor__closure0, A._EvaluateVisitor_visitForwardRule_closure, A._EvaluateVisitor_visitForwardRule_closure0, A._EvaluateVisitor_visitUseRule_closure, A._EvaluateVisitor__evaluateArguments_closure1, A._EvaluateVisitor__evaluateMacroArguments_closure1, A._EvaluateVisitor__addRestMap_closure, A.SingleMapping_toJson_closure0, A.Highlighter__collateLines_closure0, A.Frame_Frame$parseV8_closure_parseLocation, A.TransformByHandlers_transformByHandlers__closure1, A.RateLimit__debounceAggregate_closure, A._EvaluateVisitor__closure11, A._EvaluateVisitor__closure12, A._EvaluateVisitor_visitForwardRule_closure5, A._EvaluateVisitor_visitForwardRule_closure6, A._EvaluateVisitor_visitUseRule_closure2, A._EvaluateVisitor__evaluateArguments_closure13, A._EvaluateVisitor__evaluateMacroArguments_closure13, A._EvaluateVisitor__addRestMap_closure2, A.calculationOperationClass__closure0, A.calculationInterpolationClass__closure, A.calculationInterpolationClass__closure0, A._updateComponents_updateRgb0, A.colorClass__closure, A.colorClass__closure0, A.legacyColorClass_closure4, A.legacyColorClass_closure5, A.legacyColorClass_closure6, A.legacyColorClass_closure7, A._parseFunctions_closure0, A.ComplexSelector_specificity_closure0, A.CompoundSelector_specificity_closure0, A._EvaluateVisitor__closure7, A._EvaluateVisitor__closure8, A._EvaluateVisitor_visitForwardRule_closure3, A._EvaluateVisitor_visitForwardRule_closure4, A._EvaluateVisitor_visitUseRule_closure1, A._EvaluateVisitor__evaluateArguments_closure9, A._EvaluateVisitor__evaluateMacroArguments_closure9, A._EvaluateVisitor__addRestMap_closure1, A.ExtensionStore_clone_closure0, A._weaveParents_closure3, A.paths_closure0, A.IfRule_toString_closure0, A.main_closure, A.main_closure0, A.render_closure1, A._parseFunctions_closure, A.listClass__closure0, A.legacyListClass_closure0, A.legacyListClass_closure3, A.mapClass__closure1, A.legacyMapClass_closure0, A.legacyMapClass_closure1, A.numberClass__closure10, A.numberClass__closure11, A.legacyNumberClass_closure1, A.legacyNumberClass_closure3, A.SassNumber_plus_closure0, A.SassNumber_minus_closure0, A.SassNumber__canonicalMultiplier_closure0, A.JSClassExtension_get_defineStaticMethod_closure, A.JSClassExtension_get_defineMethod_closure, A.JSClassExtension_get_defineGetter_closure, A._nest__closure2, A._append__closure2, A.legacyStringClass_closure1, A.StylesheetParser__styleRule_closure0, A.StylesheetParser__tryDeclarationChildren_closure0, A.StylesheetParser__atRootRule_closure1, A.StylesheetParser__atRootRule_closure2, A.StylesheetParser__eachRule_closure0, A.StylesheetParser__functionRule_closure0, A.StylesheetParser__forRule_closure2, A.StylesheetParser__includeRule_closure0, A.StylesheetParser_mediaRule_closure0, A.StylesheetParser__mixinRule_closure0, A.StylesheetParser_mozDocumentRule_closure0, A.StylesheetParser_supportsRule_closure0, A.StylesheetParser__whileRule_closure0, A.StylesheetParser_unknownAtRule_closure0, A.futureToPromise_closure0, A.futureToPromise__closure1, A.objectToMap_closure, A.longestCommonSubsequence_backtrack0, A.mapAddAll2_closure0, A.valueClass__closure6, A.valueClass__closure16]);
+    _inherit(A.CastList, A._CastListBase);
+    _inheritMany(A.MapBase, [A.CastMap, A.JsLinkedHashMap, A._HashMap, A.UnmodifiableMapBase, A._JsonMap, A.MergedMapView, A.MergedMapView0]);
+    _inheritMany(A.Error, [A.LateError, A.ReachabilityError, A.TypeError, A.JsNoSuchMethodError, A.UnknownJsTypeError, A._CyclicInitializationError, A.RuntimeError, A._Error, A.JsonUnsupportedObjectError, A.AssertionError, A.ArgumentError, A.NoSuchMethodError, A.UnsupportedError, A.UnimplementedError, A.StateError, A.ConcurrentModificationError]);
+    _inherit(A.UnmodifiableListBase, A.ListBase);
+    _inheritMany(A.UnmodifiableListBase, [A.CodeUnits, A.UnmodifiableListView]);
+    _inheritMany(A.Closure0Args, [A.nullFuture_closure, A._AsyncRun__scheduleImmediateJsOverride_internalCallback, A._AsyncRun__scheduleImmediateWithSetImmediate_internalCallback, A._TimerImpl_internalCallback, A._TimerImpl$periodic_closure, A._Future__addListener_closure, A._Future__prependListeners_closure, A._Future__chainForeignFuture_closure1, A._Future__chainCoreFutureAsync_closure, A._Future__asyncCompleteWithValue_closure, A._Future__asyncCompleteError_closure, A._Future__propagateToListeners_handleWhenCompleteCallback, A._Future__propagateToListeners_handleValueCallback, A._Future__propagateToListeners_handleError, A.Stream_length_closure0, A._StreamController__subscribe_closure, A._StreamController__recordCancel_complete, A._AddStreamState_cancel_closure, A._BufferingStreamSubscription__sendError_sendError, A._BufferingStreamSubscription__sendDone_sendDone, A._PendingEvents_schedule_closure, A._CustomZone_bindCallback_closure, A._CustomZone_bindCallbackGuarded_closure, A._rootHandleError_closure, A._RootZone_bindCallback_closure, A._RootZone_bindCallbackGuarded_closure, A._Utf8Decoder__decoder_closure, A._Utf8Decoder__decoderNonfatal_closure, A.Parser__setOption_closure, A.StreamGroup_add_closure, A.StreamGroup_add_closure0, A.StreamGroup__listenToStream_closure, A.StreamQueue__ensureListening_closure0, A._isStrictMode_closure, A.ReplAdapter_runAsync_closure, A.ParsedPath__splitExtension_closure0, A.PseudoSelector_specificity_closure, A.AsyncEnvironment_setVariable_closure, A.AsyncEnvironment_setVariable_closure1, A.AsyncImportCache_canonicalize_closure, A.AsyncImportCache__canonicalize_closure, A.AsyncImportCache_importCanonical_closure, A.Environment_setVariable_closure, A.Environment_setVariable_closure1, A.ExecutableOptions__parser_closure, A.ExecutableOptions_interactive_closure, A.ExecutableOptions_fatalDeprecations_closure, A.ExtensionStore__registerSelector_closure, A.ExtensionStore_addExtension_closure, A.ExtensionStore_addExtension_closure0, A.ExtensionStore_addExtension_closure1, A.ExtensionStore__extendExistingExtensions_closure, A.ExtensionStore__extendExistingExtensions_closure0, A.ExtensionStore_addExtensions_closure, A.ImportCache_canonicalize_closure, A.ImportCache__canonicalize_closure, A.ImportCache_importCanonical_closure, A.resolveImportPath_closure, A.resolveImportPath_closure0, A._tryPathAsDirectory_closure, A._realCasePath_helper_closure, A._readFile_closure, A.writeFile_closure, A.deleteFile_closure, A.fileExists_closure, A.dirExists_closure, A.ensureDir_closure, A.listDir_closure, A.modificationTime_closure, A.watchDir_closure3, A.watchDir__closure, A.AtRootQueryParser_parse_closure, A.KeyframeSelectorParser_parse_closure, A.MediaQueryParser_parse_closure, A.Parser__parseIdentifier_closure, A.Parser_spanFrom_closure, A.SassParser_children_closure, A.SelectorParser_parse_closure, A.SelectorParser_parseCompoundSelector_closure, A.StylesheetParser_parse_closure, A.StylesheetParser_parse__closure, A.StylesheetParser_parseArgumentDeclaration_closure, A.StylesheetParser_parseVariableDeclaration_closure, A.StylesheetParser_parseUseRule_closure, A.StylesheetParser__parseSingleProduction_closure, A.StylesheetParser__statement_closure, A.StylesheetParser_variableDeclarationWithoutNamespace_closure, A.StylesheetParser_variableDeclarationWithoutNamespace_closure0, A.StylesheetParser__forRule_closure, A.StylesheetParser__memberList_closure, A.StylesheetParser__expression_resetState, A.StylesheetParser__expression_resolveOneOperation, A.StylesheetParser__expression_resolveOperations, A.StylesheetParser__expression_resolveSpaceExpressions, A.StylesheetParser_expressionUntilComma_closure, A.StylesheetParser_namespacedExpression_closure, A.StylesheetParser__expressionUntilComparison_closure, A.StylesheetParser__publicIdentifier_closure, A.StylesheetGraph_modifiedSince_transitiveModificationTime_closure, A.StylesheetGraph__add_closure, A.StylesheetGraph_addCanonical_closure, A.StylesheetGraph_reload_closure, A.StylesheetGraph__nodeFor_closure, A.StylesheetGraph__nodeFor_closure0, A.SassNumber__coerceOrConvertValue_compatibilityException, A.SassNumber__coerceOrConvertValue_closure0, A.SassNumber__coerceOrConvertValue_closure2, A.SassNumber_multiplyUnits_closure0, A.SassNumber_multiplyUnits_closure2, A.SingleUnitSassNumber_multiplyUnits_closure0, A._EvaluateVisitor__closure6, A._EvaluateVisitor__closure5, A._EvaluateVisitor_run_closure0, A._EvaluateVisitor_run__closure0, A._EvaluateVisitor__loadModule_closure1, A._EvaluateVisitor__loadModule_closure2, A._EvaluateVisitor__loadModule__closure2, A._EvaluateVisitor__execute_closure0, A._EvaluateVisitor__extendModules_closure2, A._EvaluateVisitor_visitAtRootRule_closure1, A._EvaluateVisitor_visitAtRootRule_closure2, A._EvaluateVisitor__scopeForAtRoot__closure0, A._EvaluateVisitor_visitContentRule_closure0, A._EvaluateVisitor_visitDeclaration_closure0, A._EvaluateVisitor_visitEachRule_closure4, A._EvaluateVisitor_visitAtRule_closure3, A._EvaluateVisitor_visitAtRule__closure0, A._EvaluateVisitor_visitForRule_closure4, A._EvaluateVisitor_visitForRule_closure5, A._EvaluateVisitor_visitForRule_closure6, A._EvaluateVisitor_visitForRule_closure7, A._EvaluateVisitor_visitForRule_closure8, A._EvaluateVisitor__registerCommentsForModule_closure0, A._EvaluateVisitor_visitIfRule__closure0, A._EvaluateVisitor__visitDynamicImport_closure0, A._EvaluateVisitor__visitDynamicImport__closure6, A._EvaluateVisitor__applyMixin_closure1, A._EvaluateVisitor__applyMixin__closure2, A._EvaluateVisitor__applyMixin_closure2, A._EvaluateVisitor__applyMixin__closure1, A._EvaluateVisitor__applyMixin___closure0, A._EvaluateVisitor__applyMixin____closure0, A._EvaluateVisitor_visitIncludeRule_closure2, A._EvaluateVisitor_visitIncludeRule_closure4, A._EvaluateVisitor_visitMediaRule_closure3, A._EvaluateVisitor_visitMediaRule__closure0, A._EvaluateVisitor_visitMediaRule___closure0, A._EvaluateVisitor_visitStyleRule_closure4, A._EvaluateVisitor_visitStyleRule_closure7, A._EvaluateVisitor_visitStyleRule__closure0, A._EvaluateVisitor_visitSupportsRule_closure1, A._EvaluateVisitor_visitSupportsRule__closure0, A._EvaluateVisitor__visitSupportsCondition_closure0, A._EvaluateVisitor_visitVariableDeclaration_closure2, A._EvaluateVisitor_visitVariableDeclaration_closure3, A._EvaluateVisitor_visitVariableDeclaration_closure4, A._EvaluateVisitor_visitWarnRule_closure0, A._EvaluateVisitor_visitWhileRule_closure0, A._EvaluateVisitor_visitBinaryOperationExpression_closure0, A._EvaluateVisitor_visitVariableExpression_closure0, A._EvaluateVisitor_visitUnaryOperationExpression_closure0, A._EvaluateVisitor_visitFunctionExpression_closure2, A._EvaluateVisitor_visitFunctionExpression_closure4, A._EvaluateVisitor__visitCalculationExpression_closure0, A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure0, A._EvaluateVisitor__runUserDefinedCallable_closure0, A._EvaluateVisitor__runUserDefinedCallable__closure0, A._EvaluateVisitor__runUserDefinedCallable___closure0, A._EvaluateVisitor__runFunctionCallable_closure0, A._EvaluateVisitor__runBuiltInCallable_closure2, A._EvaluateVisitor__runBuiltInCallable_closure3, A._EvaluateVisitor__verifyArguments_closure0, A._EvaluateVisitor_visitCssAtRule_closure1, A._EvaluateVisitor_visitCssKeyframeBlock_closure1, A._EvaluateVisitor_visitCssMediaRule_closure3, A._EvaluateVisitor_visitCssMediaRule__closure0, A._EvaluateVisitor_visitCssMediaRule___closure0, A._EvaluateVisitor_visitCssStyleRule_closure2, A._EvaluateVisitor_visitCssStyleRule__closure0, A._EvaluateVisitor_visitCssSupportsRule_closure1, A._EvaluateVisitor_visitCssSupportsRule__closure0, A._EvaluateVisitor__serialize_closure0, A._EvaluateVisitor__expressionNode_closure0, A._EvaluateVisitor__closure2, A._EvaluateVisitor__closure1, A._EvaluateVisitor_run_closure, A._EvaluateVisitor_run__closure, A._EvaluateVisitor_runExpression_closure, A._EvaluateVisitor_runExpression__closure, A._EvaluateVisitor_runExpression___closure, A._EvaluateVisitor_runStatement_closure, A._EvaluateVisitor_runStatement__closure, A._EvaluateVisitor_runStatement___closure, A._EvaluateVisitor__loadModule_closure, A._EvaluateVisitor__loadModule_closure0, A._EvaluateVisitor__loadModule__closure0, A._EvaluateVisitor__execute_closure, A._EvaluateVisitor__extendModules_closure0, A._EvaluateVisitor_visitAtRootRule_closure, A._EvaluateVisitor_visitAtRootRule_closure0, A._EvaluateVisitor__scopeForAtRoot__closure, A._EvaluateVisitor_visitContentRule_closure, A._EvaluateVisitor_visitDeclaration_closure, A._EvaluateVisitor_visitEachRule_closure1, A._EvaluateVisitor_visitAtRule_closure0, A._EvaluateVisitor_visitAtRule__closure, A._EvaluateVisitor_visitForRule_closure, A._EvaluateVisitor_visitForRule_closure0, A._EvaluateVisitor_visitForRule_closure1, A._EvaluateVisitor_visitForRule_closure2, A._EvaluateVisitor_visitForRule_closure3, A._EvaluateVisitor__registerCommentsForModule_closure, A._EvaluateVisitor_visitIfRule__closure, A._EvaluateVisitor__visitDynamicImport_closure, A._EvaluateVisitor__visitDynamicImport__closure2, A._EvaluateVisitor__applyMixin_closure, A._EvaluateVisitor__applyMixin__closure0, A._EvaluateVisitor__applyMixin_closure0, A._EvaluateVisitor__applyMixin__closure, A._EvaluateVisitor__applyMixin___closure, A._EvaluateVisitor__applyMixin____closure, A._EvaluateVisitor_visitIncludeRule_closure, A._EvaluateVisitor_visitIncludeRule_closure1, A._EvaluateVisitor_visitMediaRule_closure0, A._EvaluateVisitor_visitMediaRule__closure, A._EvaluateVisitor_visitMediaRule___closure, A._EvaluateVisitor_visitStyleRule_closure, A._EvaluateVisitor_visitStyleRule_closure2, A._EvaluateVisitor_visitStyleRule__closure, A._EvaluateVisitor_visitSupportsRule_closure, A._EvaluateVisitor_visitSupportsRule__closure, A._EvaluateVisitor__visitSupportsCondition_closure, A._EvaluateVisitor_visitVariableDeclaration_closure, A._EvaluateVisitor_visitVariableDeclaration_closure0, A._EvaluateVisitor_visitVariableDeclaration_closure1, A._EvaluateVisitor_visitWarnRule_closure, A._EvaluateVisitor_visitWhileRule_closure, A._EvaluateVisitor_visitBinaryOperationExpression_closure, A._EvaluateVisitor_visitVariableExpression_closure, A._EvaluateVisitor_visitUnaryOperationExpression_closure, A._EvaluateVisitor_visitFunctionExpression_closure, A._EvaluateVisitor_visitFunctionExpression_closure1, A._EvaluateVisitor__visitCalculationExpression_closure, A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure, A._EvaluateVisitor__runUserDefinedCallable_closure, A._EvaluateVisitor__runUserDefinedCallable__closure, A._EvaluateVisitor__runUserDefinedCallable___closure, A._EvaluateVisitor__runFunctionCallable_closure, A._EvaluateVisitor__runBuiltInCallable_closure, A._EvaluateVisitor__runBuiltInCallable_closure0, A._EvaluateVisitor__verifyArguments_closure, A._EvaluateVisitor_visitCssAtRule_closure, A._EvaluateVisitor_visitCssKeyframeBlock_closure, A._EvaluateVisitor_visitCssMediaRule_closure0, A._EvaluateVisitor_visitCssMediaRule__closure, A._EvaluateVisitor_visitCssMediaRule___closure, A._EvaluateVisitor_visitCssStyleRule_closure0, A._EvaluateVisitor_visitCssStyleRule__closure, A._EvaluateVisitor_visitCssSupportsRule_closure, A._EvaluateVisitor_visitCssSupportsRule__closure, A._EvaluateVisitor__serialize_closure, A._EvaluateVisitor__expressionNode_closure, A._SerializeVisitor_visitCssComment_closure, A._SerializeVisitor_visitCssAtRule_closure, A._SerializeVisitor_visitCssMediaRule_closure, A._SerializeVisitor_visitCssImport_closure, A._SerializeVisitor_visitCssImport__closure, A._SerializeVisitor_visitCssKeyframeBlock_closure, A._SerializeVisitor_visitCssStyleRule_closure, A._SerializeVisitor_visitCssSupportsRule_closure, A._SerializeVisitor_visitCssDeclaration_closure, A._SerializeVisitor_visitCssDeclaration_closure0, A._SerializeVisitor__write_closure, A._SerializeVisitor__visitChildren_closure, A._SerializeVisitor__visitChildren_closure0, A.SingleMapping_SingleMapping$fromEntries_closure, A.SingleMapping_SingleMapping$fromEntries_closure0, A.Highlighter_closure, A.Highlighter__writeFileStart_closure, A.Highlighter__writeMultilineHighlights_closure, A.Highlighter__writeMultilineHighlights_closure0, A.Highlighter__writeMultilineHighlights_closure1, A.Highlighter__writeMultilineHighlights_closure2, A.Highlighter__writeMultilineHighlights__closure, A.Highlighter__writeMultilineHighlights__closure0, A.Highlighter__writeHighlightedText_closure, A.Highlighter__writeIndicator_closure, A.Highlighter__writeIndicator_closure0, A.Highlighter__writeIndicator_closure1, A.Highlighter__writeLabel_closure, A.Highlighter__writeLabel_closure0, A.Highlighter__writeSidebar_closure, A._Highlight_closure, A.Frame_Frame$parseVM_closure, A.Frame_Frame$parseV8_closure, A.Frame_Frame$_parseFirefoxEval_closure, A.Frame_Frame$parseFirefox_closure, A.Frame_Frame$parseFriendly_closure, A.LazyTrace_terse_closure, A.Trace_Trace$from_closure, A.TransformByHandlers_transformByHandlers_closure, A.TransformByHandlers_transformByHandlers__closure0, A.TransformByHandlers_transformByHandlers__closure2, A.RateLimit__debounceAggregate_closure_emit, A.RateLimit__debounceAggregate__closure, A.argumentListClass_closure, A.JSToDartAsyncImporter_canonicalize_closure, A.JSToDartAsyncImporter_load_closure, A.AsyncEnvironment_setVariable_closure2, A.AsyncEnvironment_setVariable_closure4, A._EvaluateVisitor__closure14, A._EvaluateVisitor__closure13, A._EvaluateVisitor_run_closure2, A._EvaluateVisitor_run__closure2, A._EvaluateVisitor__loadModule_closure5, A._EvaluateVisitor__loadModule_closure6, A._EvaluateVisitor__loadModule__closure6, A._EvaluateVisitor__execute_closure2, A._EvaluateVisitor__extendModules_closure6, A._EvaluateVisitor_visitAtRootRule_closure5, A._EvaluateVisitor_visitAtRootRule_closure6, A._EvaluateVisitor__scopeForAtRoot__closure2, A._EvaluateVisitor_visitContentRule_closure2, A._EvaluateVisitor_visitDeclaration_closure2, A._EvaluateVisitor_visitEachRule_closure10, A._EvaluateVisitor_visitAtRule_closure9, A._EvaluateVisitor_visitAtRule__closure2, A._EvaluateVisitor_visitForRule_closure14, A._EvaluateVisitor_visitForRule_closure15, A._EvaluateVisitor_visitForRule_closure16, A._EvaluateVisitor_visitForRule_closure17, A._EvaluateVisitor_visitForRule_closure18, A._EvaluateVisitor__registerCommentsForModule_closure2, A._EvaluateVisitor_visitIfRule__closure2, A._EvaluateVisitor__visitDynamicImport_closure2, A._EvaluateVisitor__visitDynamicImport__closure14, A._EvaluateVisitor__applyMixin_closure5, A._EvaluateVisitor__applyMixin__closure6, A._EvaluateVisitor__applyMixin_closure6, A._EvaluateVisitor__applyMixin__closure5, A._EvaluateVisitor__applyMixin___closure2, A._EvaluateVisitor__applyMixin____closure2, A._EvaluateVisitor_visitIncludeRule_closure8, A._EvaluateVisitor_visitIncludeRule_closure10, A._EvaluateVisitor_visitMediaRule_closure9, A._EvaluateVisitor_visitMediaRule__closure2, A._EvaluateVisitor_visitMediaRule___closure2, A._EvaluateVisitor_visitStyleRule_closure14, A._EvaluateVisitor_visitStyleRule_closure17, A._EvaluateVisitor_visitStyleRule__closure2, A._EvaluateVisitor_visitSupportsRule_closure5, A._EvaluateVisitor_visitSupportsRule__closure2, A._EvaluateVisitor__visitSupportsCondition_closure2, A._EvaluateVisitor_visitVariableDeclaration_closure8, A._EvaluateVisitor_visitVariableDeclaration_closure9, A._EvaluateVisitor_visitVariableDeclaration_closure10, A._EvaluateVisitor_visitWarnRule_closure2, A._EvaluateVisitor_visitWhileRule_closure2, A._EvaluateVisitor_visitBinaryOperationExpression_closure2, A._EvaluateVisitor_visitVariableExpression_closure2, A._EvaluateVisitor_visitUnaryOperationExpression_closure2, A._EvaluateVisitor_visitFunctionExpression_closure8, A._EvaluateVisitor_visitFunctionExpression_closure10, A._EvaluateVisitor__visitCalculationExpression_closure2, A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure2, A._EvaluateVisitor__runUserDefinedCallable_closure2, A._EvaluateVisitor__runUserDefinedCallable__closure2, A._EvaluateVisitor__runUserDefinedCallable___closure2, A._EvaluateVisitor__runFunctionCallable_closure2, A._EvaluateVisitor__runBuiltInCallable_closure8, A._EvaluateVisitor__runBuiltInCallable_closure9, A._EvaluateVisitor__verifyArguments_closure2, A._EvaluateVisitor_visitCssAtRule_closure5, A._EvaluateVisitor_visitCssKeyframeBlock_closure5, A._EvaluateVisitor_visitCssMediaRule_closure9, A._EvaluateVisitor_visitCssMediaRule__closure2, A._EvaluateVisitor_visitCssMediaRule___closure2, A._EvaluateVisitor_visitCssStyleRule_closure6, A._EvaluateVisitor_visitCssStyleRule__closure2, A._EvaluateVisitor_visitCssSupportsRule_closure5, A._EvaluateVisitor_visitCssSupportsRule__closure2, A._EvaluateVisitor__serialize_closure2, A._EvaluateVisitor__expressionNode_closure2, A.JSToDartAsyncFileImporter_canonicalize_closure, A.AsyncImportCache_canonicalize_closure0, A.AsyncImportCache__canonicalize_closure0, A.AsyncImportCache_importCanonical_closure0, A.AtRootQueryParser_parse_closure0, A.booleanClass_closure, A.legacyBooleanClass_closure, A.calculationClass_closure, A.calculationOperationClass_closure, A.calculationInterpolationClass_closure, A.colorClass_closure, A.compileAsync_closure, A.compileStringAsync_closure, A._parseFunctions___closure6, A._parseFunctions___closure5, A._parseDeprecations_closure, A.nodePackageImporterClass_closure, A.compilerClass_closure, A.asyncCompilerClass_closure, A.asyncCompilerClass___closure, A.initAsyncCompiler_closure, A.deprecations_closure, A.versionClass_closure, A.Environment_setVariable_closure2, A.Environment_setVariable_closure4, A._EvaluateVisitor__closure10, A._EvaluateVisitor__closure9, A._EvaluateVisitor_run_closure1, A._EvaluateVisitor_run__closure1, A._EvaluateVisitor__loadModule_closure3, A._EvaluateVisitor__loadModule_closure4, A._EvaluateVisitor__loadModule__closure4, A._EvaluateVisitor__execute_closure1, A._EvaluateVisitor__extendModules_closure4, A._EvaluateVisitor_visitAtRootRule_closure3, A._EvaluateVisitor_visitAtRootRule_closure4, A._EvaluateVisitor__scopeForAtRoot__closure1, A._EvaluateVisitor_visitContentRule_closure1, A._EvaluateVisitor_visitDeclaration_closure1, A._EvaluateVisitor_visitEachRule_closure7, A._EvaluateVisitor_visitAtRule_closure6, A._EvaluateVisitor_visitAtRule__closure1, A._EvaluateVisitor_visitForRule_closure9, A._EvaluateVisitor_visitForRule_closure10, A._EvaluateVisitor_visitForRule_closure11, A._EvaluateVisitor_visitForRule_closure12, A._EvaluateVisitor_visitForRule_closure13, A._EvaluateVisitor__registerCommentsForModule_closure1, A._EvaluateVisitor_visitIfRule__closure1, A._EvaluateVisitor__visitDynamicImport_closure1, A._EvaluateVisitor__visitDynamicImport__closure10, A._EvaluateVisitor__applyMixin_closure3, A._EvaluateVisitor__applyMixin__closure4, A._EvaluateVisitor__applyMixin_closure4, A._EvaluateVisitor__applyMixin__closure3, A._EvaluateVisitor__applyMixin___closure1, A._EvaluateVisitor__applyMixin____closure1, A._EvaluateVisitor_visitIncludeRule_closure5, A._EvaluateVisitor_visitIncludeRule_closure7, A._EvaluateVisitor_visitMediaRule_closure6, A._EvaluateVisitor_visitMediaRule__closure1, A._EvaluateVisitor_visitMediaRule___closure1, A._EvaluateVisitor_visitStyleRule_closure9, A._EvaluateVisitor_visitStyleRule_closure12, A._EvaluateVisitor_visitStyleRule__closure1, A._EvaluateVisitor_visitSupportsRule_closure3, A._EvaluateVisitor_visitSupportsRule__closure1, A._EvaluateVisitor__visitSupportsCondition_closure1, A._EvaluateVisitor_visitVariableDeclaration_closure5, A._EvaluateVisitor_visitVariableDeclaration_closure6, A._EvaluateVisitor_visitVariableDeclaration_closure7, A._EvaluateVisitor_visitWarnRule_closure1, A._EvaluateVisitor_visitWhileRule_closure1, A._EvaluateVisitor_visitBinaryOperationExpression_closure1, A._EvaluateVisitor_visitVariableExpression_closure1, A._EvaluateVisitor_visitUnaryOperationExpression_closure1, A._EvaluateVisitor_visitFunctionExpression_closure5, A._EvaluateVisitor_visitFunctionExpression_closure7, A._EvaluateVisitor__visitCalculationExpression_closure1, A._EvaluateVisitor_visitInterpolatedFunctionExpression_closure1, A._EvaluateVisitor__runUserDefinedCallable_closure1, A._EvaluateVisitor__runUserDefinedCallable__closure1, A._EvaluateVisitor__runUserDefinedCallable___closure1, A._EvaluateVisitor__runFunctionCallable_closure1, A._EvaluateVisitor__runBuiltInCallable_closure5, A._EvaluateVisitor__runBuiltInCallable_closure6, A._EvaluateVisitor__verifyArguments_closure1, A._EvaluateVisitor_visitCssAtRule_closure3, A._EvaluateVisitor_visitCssKeyframeBlock_closure3, A._EvaluateVisitor_visitCssMediaRule_closure6, A._EvaluateVisitor_visitCssMediaRule__closure1, A._EvaluateVisitor_visitCssMediaRule___closure1, A._EvaluateVisitor_visitCssStyleRule_closure4, A._EvaluateVisitor_visitCssStyleRule__closure1, A._EvaluateVisitor_visitCssSupportsRule_closure3, A._EvaluateVisitor_visitCssSupportsRule__closure1, A._EvaluateVisitor__serialize_closure1, A._EvaluateVisitor__expressionNode_closure1, A.exceptionClass_closure, A.ExtensionStore__registerSelector_closure0, A.ExtensionStore_addExtension_closure2, A.ExtensionStore_addExtension_closure3, A.ExtensionStore_addExtension_closure4, A.ExtensionStore__extendExistingExtensions_closure1, A.ExtensionStore__extendExistingExtensions_closure2, A.ExtensionStore_addExtensions_closure0, A.JSToDartFileImporter_canonicalize_closure, A.functionClass_closure, A.NodeImporter_load_closure, A.NodeImporter__tryPath_closure, A.NodeImporter__callImporterAsync_closure, A.ImportCache_canonicalize_closure0, A.ImportCache__canonicalize_closure0, A.ImportCache_importCanonical_closure0, A._realCasePath_helper_closure0, A._readFile_closure0, A.fileExists_closure0, A.dirExists_closure0, A.listDir_closure0, A.JSToDartLogger_internalWarn_closure, A.JSToDartLogger_debug_closure, A.KeyframeSelectorParser_parse_closure0, A.render_closure, A._parseFunctions____closure, A._parseFunctions___closure3, A._parseFunctions___closure4, A._parseFunctions___closure1, A._parseFunctions___closure0, A._parseImporter____closure, A._parseImporter___closure0, A.listClass_closure, A.mapClass_closure, A.MediaQueryParser_parse_closure0, A.mixinClass_closure, A.legacyNullClass_closure, A.numberClass_closure, A.SassNumber__coerceOrConvertValue_compatibilityException0, A.SassNumber__coerceOrConvertValue_closure4, A.SassNumber__coerceOrConvertValue_closure6, A.SassNumber_multiplyUnits_closure4, A.SassNumber_multiplyUnits_closure6, A.Parser__parseIdentifier_closure0, A.Parser_spanFrom_closure0, A.PseudoSelector_specificity_closure0, A.SassParser_children_closure0, A.SelectorParser_parse_closure0, A.SelectorParser_parseCompoundSelector_closure0, A._SerializeVisitor_visitCssComment_closure0, A._SerializeVisitor_visitCssAtRule_closure0, A._SerializeVisitor_visitCssMediaRule_closure0, A._SerializeVisitor_visitCssImport_closure0, A._SerializeVisitor_visitCssImport__closure0, A._SerializeVisitor_visitCssKeyframeBlock_closure0, A._SerializeVisitor_visitCssStyleRule_closure0, A._SerializeVisitor_visitCssSupportsRule_closure0, A._SerializeVisitor_visitCssDeclaration_closure1, A._SerializeVisitor_visitCssDeclaration_closure2, A._SerializeVisitor__write_closure0, A._SerializeVisitor__visitChildren_closure1, A._SerializeVisitor__visitChildren_closure2, A.SingleUnitSassNumber_multiplyUnits_closure2, A.updateSourceSpanPrototype_closure, A.stringClass_closure, A.StylesheetParser_parse_closure0, A.StylesheetParser_parse__closure1, A.StylesheetParser_parseArgumentDeclaration_closure0, A.StylesheetParser__parseSingleProduction_closure0, A.StylesheetParser_parseSignature_closure, A.StylesheetParser__statement_closure0, A.StylesheetParser_variableDeclarationWithoutNamespace_closure1, A.StylesheetParser_variableDeclarationWithoutNamespace_closure2, A.StylesheetParser__forRule_closure1, A.StylesheetParser__memberList_closure0, A.StylesheetParser__expression_resetState0, A.StylesheetParser__expression_resolveOneOperation0, A.StylesheetParser__expression_resolveOperations0, A.StylesheetParser__expression_resolveSpaceExpressions0, A.StylesheetParser_expressionUntilComma_closure0, A.StylesheetParser_namespacedExpression_closure0, A.StylesheetParser__expressionUntilComparison_closure0, A.StylesheetParser__publicIdentifier_closure0, A.JSToDartImporter_canonicalize_closure, A.JSToDartImporter_load_closure, A.resolveImportPath_closure1, A.resolveImportPath_closure2, A._tryPathAsDirectory_closure0, A.valueClass_closure]);
+    _inheritMany(A.EfficientLengthIterable, [A.ListIterable, A.EmptyIterable, A.LinkedHashMapKeyIterable, A._HashMapKeyIterable, A._MapBaseValueIterable]);
+    _inheritMany(A.ListIterable, [A.SubListIterable, A.MappedListIterable, A.ReversedListIterable, A.ListQueue, A._JsonMapKeyIterable, A._GeneratorIterable]);
+    _inherit(A.EfficientLengthMappedIterable, A.MappedIterable);
+    _inherit(A.EfficientLengthTakeIterable, A.TakeIterable);
+    _inherit(A.EfficientLengthSkipIterable, A.SkipIterable);
+    _inherit(A.EfficientLengthFollowedByIterable, A.FollowedByIterable);
+    _inheritMany(A._Record, [A._Record1, A._Record2, A._Record3, A._RecordN]);
+    _inherit(A._Record_1, A._Record1);
+    _inheritMany(A._Record2, [A._Record_2, A._Record_2_forImport, A._Record_2_imports_modules, A._Record_2_loadedUrls_stylesheet, A._Record_2_sourceMap]);
+    _inheritMany(A._Record3, [A._Record_3, A._Record_3_forImport, A._Record_3_importer_isDependency, A._Record_3_originalUrl]);
+    _inherit(A._Record_5_named_namedNodes_positional_positionalNodes_separator, A._RecordN);
+    _inheritMany(A.MapView, [A._UnmodifiableMapView_MapView__UnmodifiableMapMixin, A.PathMap]);
+    _inherit(A.UnmodifiableMapView, A._UnmodifiableMapView_MapView__UnmodifiableMapMixin);
+    _inherit(A.ConstantMapView, A.UnmodifiableMapView);
+    _inherit(A.ConstantStringMap, A.ConstantMap);
+    _inheritMany(A.SetBase, [A.ConstantSet, A._SetBase, A._UnmodifiableSetView_SetBase__UnmodifiableSetMixin, A._UnionSet_SetBase_UnmodifiableSetMixin]);
+    _inheritMany(A.ConstantSet, [A.ConstantStringSet, A.GeneralConstantSet]);
+    _inherit(A.Instantiation1, A.Instantiation);
+    _inherit(A.NullError, A.TypeError);
+    _inheritMany(A.TearOffClosure, [A.StaticClosure, A.BoundClosure]);
+    _inheritMany(A.JsLinkedHashMap, [A.JsIdentityLinkedHashMap, A.JsConstantLinkedHashMap, A._LinkedCustomHashMap]);
+    _inheritMany(A.NativeTypedData, [A.NativeByteData, A.NativeTypedArray]);
+    _inheritMany(A.NativeTypedArray, [A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin, A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin]);
+    _inherit(A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin, A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin);
+    _inherit(A.NativeTypedArrayOfDouble, A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin);
+    _inherit(A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin, A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin);
+    _inherit(A.NativeTypedArrayOfInt, A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin);
+    _inheritMany(A.NativeTypedArrayOfDouble, [A.NativeFloat32List, A.NativeFloat64List]);
+    _inheritMany(A.NativeTypedArrayOfInt, [A.NativeInt16List, A.NativeInt32List, A.NativeInt8List, A.NativeUint16List, A.NativeUint32List, A.NativeUint8ClampedList, A.NativeUint8List]);
+    _inherit(A._TypeError, A._Error);
+    _inheritMany(A._Completer, [A._AsyncCompleter, A._SyncCompleter]);
+    _inheritMany(A._StreamController, [A._AsyncStreamController, A._SyncStreamController]);
+    _inheritMany(A.Stream, [A._StreamImpl, A._ForwardingStream, A._CompleterStream]);
+    _inherit(A._ControllerStream, A._StreamImpl);
+    _inheritMany(A._BufferingStreamSubscription, [A._ControllerSubscription, A._ForwardingStreamSubscription]);
+    _inherit(A._StreamControllerAddStreamState, A._AddStreamState);
+    _inheritMany(A._DelayedEvent, [A._DelayedData, A._DelayedError]);
+    _inherit(A._ExpandStream, A._ForwardingStream);
+    _inheritMany(A._Zone, [A._CustomZone, A._RootZone]);
+    _inherit(A._IdentityHashMap, A._HashMap);
+    _inherit(A._LinkedHashSet, A._SetBase);
+    _inherit(A._LinkedIdentityHashSet, A._LinkedHashSet);
+    _inherit(A.UnmodifiableSetView, A._UnmodifiableSetView_SetBase__UnmodifiableSetMixin);
+    _inheritMany(A.Codec, [A.Encoding, A.Base64Codec, A.JsonCodec]);
+    _inheritMany(A.Encoding, [A.AsciiCodec, A.Utf8Codec]);
+    _inheritMany(A.Converter, [A._UnicodeSubsetEncoder, A.Base64Encoder, A.JsonEncoder, A.JsonDecoder, A.Utf8Encoder, A.Utf8Decoder]);
+    _inherit(A.AsciiEncoder, A._UnicodeSubsetEncoder);
+    _inheritMany(A.ByteConversionSink, [A._Base64EncoderSink, A._Utf8StringSinkAdapter]);
+    _inherit(A._Utf8Base64EncoderSink, A._Base64EncoderSink);
+    _inherit(A.JsonCyclicError, A.JsonUnsupportedObjectError);
+    _inherit(A._JsonStringStringifier, A._JsonStringifier);
+    _inherit(A._StringSinkConversionSink, A.StringConversionSink);
+    _inherit(A._StringCallbackSink, A._StringSinkConversionSink);
+    _inheritMany(A.ArgumentError, [A.RangeError, A.IndexError]);
+    _inherit(A._DataUri, A._Uri);
+    _inherit(A.ArgParserException, A.FormatException);
+    _inherit(A.EmptyUnmodifiableSet, A._EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin);
+    _inherit(A.QueueList, A._QueueList_Object_ListMixin);
+    _inherit(A._CastQueueList, A.QueueList);
+    _inherit(A.UnionSet, A._UnionSet_SetBase_UnmodifiableSetMixin);
+    _inheritMany(A._DelegatingIterableBase, [A.DelegatingSet, A._MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin]);
+    _inherit(A._UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin, A.DelegatingSet);
+    _inherit(A.UnmodifiableSetView0, A._UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin);
+    _inherit(A.MapKeySet, A._MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin);
+    _inheritMany(A.NodeJsError, [A.JsAssertionError, A.JsRangeError, A.JsReferenceError, A.JsSyntaxError, A.JsTypeError, A.JsSystemError]);
+    _inheritMany(A.Socket, [A.TTYReadStream, A.TTYWriteStream]);
+    _inherit(A.InternalStyle, A.Style);
+    _inheritMany(A.InternalStyle, [A.PosixStyle, A.UrlStyle, A.WindowsStyle]);
+    _inheritMany(A._Enum, [A._SingletonCssMediaQueryMergeResult, A.BinaryOperator, A.UnaryOperator, A.AttributeOperator, A.Combinator, A.Deprecation, A.ExtendMode, A.Syntax, A.CalculationOperator, A.ListSeparator, A.OutputStyle, A.LineFeed, A.AttributeOperator0, A.BinaryOperator0, A.CalculationOperator0, A.Combinator0, A.Deprecation0, A.ListSeparator0, A._SingletonCssMediaQueryMergeResult0, A.ExtendMode0, A.OutputStyle0, A.LineFeed0, A.Syntax0, A.UnaryOperator0]);
+    _inheritMany(A.CssNode, [A.ModifiableCssNode, A.CssParentNode]);
+    _inheritMany(A.ModifiableCssNode, [A.ModifiableCssParentNode, A.ModifiableCssComment, A.ModifiableCssDeclaration, A.ModifiableCssImport]);
+    _inheritMany(A.ModifiableCssParentNode, [A.ModifiableCssAtRule, A.ModifiableCssKeyframeBlock, A.ModifiableCssMediaRule, A.ModifiableCssStyleRule, A.ModifiableCssStylesheet, A.ModifiableCssSupportsRule]);
+    _inherit(A._IsInvisibleVisitor, A.__IsInvisibleVisitor_Object_EveryCssVisitor);
+    _inherit(A.CssStylesheet, A.CssParentNode);
+    _inheritMany(A.ParentStatement, [A.AtRootRule, A.AtRule, A.CallableDeclaration, A.Declaration, A.EachRule, A.ForRule, A.MediaRule, A.StyleRule, A.Stylesheet, A.SupportsRule, A.WhileRule]);
+    _inheritMany(A.CallableDeclaration, [A.ContentBlock, A.FunctionRule, A.MixinRule]);
+    _inheritMany(A.IfRuleClause, [A.IfClause, A.ElseClause]);
+    _inherit(A._HasContentVisitor, A.__HasContentVisitor_Object_StatementSearchVisitor);
+    _inherit(A._IsInvisibleVisitor0, A.__IsInvisibleVisitor_Object_AnySelectorVisitor);
+    _inherit(A._IsBogusVisitor, A.__IsBogusVisitor_Object_AnySelectorVisitor);
+    _inherit(A._IsUselessVisitor, A.__IsUselessVisitor_Object_AnySelectorVisitor);
+    _inheritMany(A.Selector, [A.SimpleSelector, A.ComplexSelector, A.CompoundSelector, A.SelectorList]);
+    _inheritMany(A.SimpleSelector, [A.AttributeSelector, A.ClassSelector, A.IDSelector, A.ParentSelector, A.PlaceholderSelector, A.PseudoSelector, A.TypeSelector, A.UniversalSelector]);
+    _inherit(A._ParentSelectorVisitor, A.__ParentSelectorVisitor_Object_SelectorSearchVisitor);
+    _inherit(A.ExplicitConfiguration, A.Configuration);
+    _inheritMany(A.SourceSpanException, [A.SassException, A.SourceSpanFormatException, A.MultiSourceSpanException, A.SassException0]);
+    _inheritMany(A.SassException, [A.MultiSpanSassException, A.SassRuntimeException, A.SassFormatException]);
+    _inheritMany(A.MultiSpanSassException, [A.MultiSpanSassRuntimeException, A.MultiSpanSassFormatException]);
+    _inherit(A.MultiSpanSassScriptException, A.SassScriptException);
+    _inherit(A.MergedExtension, A.Extension);
+    _inherit(A.Importer, A.AsyncImporter);
+    _inheritMany(A.Importer, [A.FilesystemImporter, A.NoOpImporter, A.NodePackageImporter]);
+    _inherit(A.DeprecationProcessingLogger, A.LoggerWithDeprecationType0);
+    _inheritMany(A.Parser, [A.AtRootQueryParser, A.StylesheetParser, A.KeyframeSelectorParser, A.MediaQueryParser, A.SelectorParser]);
+    _inheritMany(A.StylesheetParser, [A.ScssParser, A.SassParser]);
+    _inherit(A.CssParser, A.ScssParser);
+    _inheritMany(A.UnmodifiableMapBase, [A.LimitedMapView, A.PrefixedMapView, A.PublicMemberMapView, A.UnprefixedMapView, A.LimitedMapView0, A.PrefixedMapView0, A.PublicMemberMapView0, A.UnprefixedMapView0]);
+    _inheritMany(A.Value, [A.SassList, A.SassBoolean, A.SassCalculation, A.SassColor, A.SassFunction, A.SassMap, A.SassMixin, A._SassNull, A.SassNumber, A.SassString]);
+    _inherit(A.SassArgumentList, A.SassList);
+    _inheritMany(A.SassNumber, [A.ComplexSassNumber, A.SingleUnitSassNumber, A.UnitlessSassNumber]);
+    _inherit(A._MakeExpressionCalculationSafe, A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor);
+    _inherit(A._FindDependenciesVisitor, A.__FindDependenciesVisitor_Object_RecursiveStatementVisitor);
+    _inherit(A.SingleMapping, A.Mapping);
+    _inherit(A.FileLocation, A.SourceLocationMixin);
+    _inheritMany(A.SourceSpanMixin, [A._FileSpan, A.SourceSpanBase]);
+    _inherit(A.MultiSourceSpanFormatException, A.MultiSourceSpanException);
+    _inherit(A.SourceSpanWithContext, A.SourceSpanBase);
+    _inherit(A.StringScannerException, A.SourceSpanFormatException);
+    _inheritMany(A.StringScanner, [A.LineScanner, A.SpanScanner]);
+    _inheritMany(A.Value0, [A.SassList0, A.SassBoolean0, A.SassCalculation0, A.SassColor0, A.SassNumber0, A.SassFunction0, A.SassMap0, A.SassMixin0, A._SassNull0, A.SassString0]);
+    _inherit(A.SassArgumentList0, A.SassList0);
+    _inheritMany(A.AsyncImporter0, [A.JSToDartAsyncImporter, A.JSToDartAsyncFileImporter, A.Importer0]);
+    _inheritMany(A.Parser1, [A.AtRootQueryParser0, A.StylesheetParser0, A.KeyframeSelectorParser0, A.MediaQueryParser0, A.SelectorParser0]);
+    _inheritMany(A.ParentStatement0, [A.AtRootRule0, A.AtRule0, A.CallableDeclaration0, A.Declaration0, A.EachRule0, A.ForRule0, A.MediaRule0, A.StyleRule0, A.Stylesheet0, A.SupportsRule0, A.WhileRule0]);
+    _inheritMany(A.CssNode0, [A.ModifiableCssNode0, A.CssParentNode0]);
+    _inheritMany(A.ModifiableCssNode0, [A.ModifiableCssParentNode0, A.ModifiableCssComment0, A.ModifiableCssDeclaration0, A.ModifiableCssImport0]);
+    _inheritMany(A.ModifiableCssParentNode0, [A.ModifiableCssAtRule0, A.ModifiableCssKeyframeBlock0, A.ModifiableCssMediaRule0, A.ModifiableCssStyleRule0, A.ModifiableCssStylesheet0, A.ModifiableCssSupportsRule0]);
+    _inheritMany(A.Selector0, [A.SimpleSelector0, A.ComplexSelector0, A.CompoundSelector0, A.SelectorList0]);
+    _inheritMany(A.SimpleSelector0, [A.AttributeSelector0, A.ClassSelector0, A.IDSelector0, A.ParentSelector0, A.PlaceholderSelector0, A.PseudoSelector0, A.TypeSelector0, A.UniversalSelector0]);
+    _inherit(A.CompileStringOptions, A.CompileOptions);
+    _inherit(A.AsyncCompiler, A.Compiler);
+    _inheritMany(A.SassNumber0, [A.ComplexSassNumber0, A.SingleUnitSassNumber0, A.UnitlessSassNumber0]);
+    _inherit(A.ExplicitConfiguration0, A.Configuration0);
+    _inheritMany(A.CallableDeclaration0, [A.ContentBlock0, A.FunctionRule0, A.MixinRule0]);
+    _inheritMany(A.StylesheetParser0, [A.ScssParser0, A.SassParser0]);
+    _inherit(A.CssParser0, A.ScssParser0);
+    _inheritMany(A.LoggerWithDeprecationType, [A.DeprecationProcessingLogger0, A.JSToDartLogger]);
+    _inherit(A._NodeException, A.JsError);
+    _inheritMany(A.SassException0, [A.MultiSpanSassException0, A.SassRuntimeException0, A.SassFormatException0]);
+    _inheritMany(A.MultiSpanSassException0, [A.MultiSpanSassRuntimeException0, A.MultiSpanSassFormatException0]);
+    _inherit(A.MultiSpanSassScriptException0, A.SassScriptException0);
+    _inherit(A._MakeExpressionCalculationSafe0, A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor0);
+    _inheritMany(A.Importer0, [A.JSToDartFileImporter, A.FilesystemImporter0, A.NoOpImporter0, A.NodePackageImporter0, A.JSToDartImporter]);
+    _inheritMany(A.IfRuleClause0, [A.IfClause0, A.ElseClause0]);
+    _inherit(A._ParentSelectorVisitor0, A.__ParentSelectorVisitor_Object_SelectorSearchVisitor0);
+    _inherit(A.MergedExtension0, A.Extension0);
+    _inherit(A._HasContentVisitor0, A.__HasContentVisitor_Object_StatementSearchVisitor0);
+    _inherit(A._IsInvisibleVisitor1, A.__IsInvisibleVisitor_Object_EveryCssVisitor0);
+    _inherit(A._IsInvisibleVisitor2, A.__IsInvisibleVisitor_Object_AnySelectorVisitor0);
+    _inherit(A._IsBogusVisitor0, A.__IsBogusVisitor_Object_AnySelectorVisitor0);
+    _inherit(A._IsUselessVisitor0, A.__IsUselessVisitor_Object_AnySelectorVisitor0);
+    _inherit(A.CssStylesheet0, A.CssParentNode0);
+    _mixin(A.UnmodifiableListBase, A.UnmodifiableListMixin);
+    _mixin(A.__CastListBase__CastIterableBase_ListMixin, A.ListBase);
+    _mixin(A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin, A.ListBase);
+    _mixin(A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin, A.FixedLengthListMixin);
+    _mixin(A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin, A.ListBase);
+    _mixin(A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin, A.FixedLengthListMixin);
+    _mixin(A._AsyncStreamController, A._AsyncStreamControllerDispatch);
+    _mixin(A._SyncStreamController, A._SyncStreamControllerDispatch);
+    _mixin(A.UnmodifiableMapBase, A._UnmodifiableMapMixin);
+    _mixin(A._UnmodifiableMapView_MapView__UnmodifiableMapMixin, A._UnmodifiableMapMixin);
+    _mixin(A._UnmodifiableSetView_SetBase__UnmodifiableSetMixin, A._UnmodifiableSetMixin);
+    _mixin(A._EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin, A.UnmodifiableSetMixin);
+    _mixin(A._QueueList_Object_ListMixin, A.ListBase);
+    _mixin(A._UnionSet_SetBase_UnmodifiableSetMixin, A.UnmodifiableSetMixin);
+    _mixin(A._UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin, A.UnmodifiableSetMixin);
+    _mixin(A._MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin, A.UnmodifiableSetMixin);
+    _mixin(A.__IsInvisibleVisitor_Object_EveryCssVisitor, A.EveryCssVisitor);
+    _mixin(A.__HasContentVisitor_Object_StatementSearchVisitor, A.StatementSearchVisitor);
+    _mixin(A.__IsBogusVisitor_Object_AnySelectorVisitor, A.AnySelectorVisitor);
+    _mixin(A.__IsInvisibleVisitor_Object_AnySelectorVisitor, A.AnySelectorVisitor);
+    _mixin(A.__IsUselessVisitor_Object_AnySelectorVisitor, A.AnySelectorVisitor);
+    _mixin(A.__ParentSelectorVisitor_Object_SelectorSearchVisitor, A.SelectorSearchVisitor);
+    _mixin(A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor, A.ReplaceExpressionVisitor);
+    _mixin(A.__FindDependenciesVisitor_Object_RecursiveStatementVisitor, A.RecursiveStatementVisitor);
+    _mixin(A.__MakeExpressionCalculationSafe_Object_ReplaceExpressionVisitor0, A.ReplaceExpressionVisitor0);
+    _mixin(A.__ParentSelectorVisitor_Object_SelectorSearchVisitor0, A.SelectorSearchVisitor0);
+    _mixin(A.__HasContentVisitor_Object_StatementSearchVisitor0, A.StatementSearchVisitor0);
+    _mixin(A.__IsInvisibleVisitor_Object_EveryCssVisitor0, A.EveryCssVisitor0);
+    _mixin(A.__IsBogusVisitor_Object_AnySelectorVisitor0, A.AnySelectorVisitor0);
+    _mixin(A.__IsInvisibleVisitor_Object_AnySelectorVisitor0, A.AnySelectorVisitor0);
+    _mixin(A.__IsUselessVisitor_Object_AnySelectorVisitor0, A.AnySelectorVisitor0);
+  })();
+  var init = {
+    typeUniverse: {eC: new Map(), tR: {}, eT: {}, tPV: {}, sEA: []},
+    mangledGlobalNames: {int: "int", double: "double", num: "num", String: "String", bool: "bool", Null: "Null", List: "List", Object: "Object", Map: "Map"},
+    mangledNames: {},
+    types: ["~()", "Null()", "Future<Null>()", "Value0(List<Value0>)", "bool(String)", "String(String)", "Value(List<Value>)", "bool(CssNode)", "bool(CssNode0)", "bool(Object?)", "int()", "SassNumber(List<Value>)", "SassNumber0(List<Value0>)", "JSClass0()", "bool(SimpleSelector)", "bool(SimpleSelector0)", "bool(ComplexSelector)", "SassString(List<Value>)", "bool(ComplexSelector0)", "SassString0(List<Value0>)", "SassBoolean(List<Value>)", "SassBoolean0(List<Value0>)", "SassList0(List<Value0>)", "SassList(List<Value>)", "Future<~>()", "String()", "FileSpan()", "SassColor0(List<Value0>)", "bool(int?)", "SassColor(List<Value>)", "bool()", "Object?()", "Value()", "SassMap0(List<Value0>)", "~(Object?)", "Null(~())", "SassMap(List<Value>)", "Future<Null>(Future<~>())", "double(double)", "Value?()", "Value0?()", "Value0(Value0)", "Value(Value)", "Value0()", "String?()", "bool(int)", "Uri(Uri)", "bool(num,num)", "SassNumber0(SassNumber0)", "bool(Value0)", "bool(ComplexSelectorComponent)", "bool(ComplexSelectorComponent0)", "SassNumber(SassNumber)", "Null(Object,StackTrace)", "Null(@)", "double(double,double)", "ComplexSelector0(ComplexSelector0)", "ComplexSelector(ComplexSelector)", "~(Value)", "double(SassColor0)", "ValueExpression(Value)", "ValueExpression0(Value0)", "@()", "~(Value0)", "Object(Object)", "Future<Value0>()", "Future<Value?>()", "bool(Object)", "~(Object,StackTrace)", "Future<Value>()", "bool(SelectorList0)", "Frame()", "~(@)", "bool(Value)", "bool(SelectorList)", "Future<Value0?>()", "Value?(Statement)", "Callable0?()", "~(Module0<Callable0>,bool)", "List<CssMediaQuery>?(List<CssMediaQuery>)", "Object()", "SassRuntimeException(AstNode)", "~(Object)", "Value0?(Statement0)", "Frame(String)", "int(Uri)", "Future<Value?>(Statement)", "~(Module1<Callable>,bool)", "Callable?()", "Future<Value0>(List<Value0>)", "Null(_NodeSassColor,num)", "Stylesheet?()", "~(String)", "AsyncCallable0?()", "~(Value0,Value0)", "SassRuntimeException0(AstNode0)", "~([int?])", "~(String,Value)", "Future<Value0?>(Statement0)", "AsyncCallable?()", "~(String,Value0)", "List<CssMediaQuery0>?(List<CssMediaQuery0>)", "~(Value,Value)", "double(Value)", "Null([Object?])", "@(@)", "double(Value0)", "bool(Expression0)", "bool(ModifiableCssNode0)", "Null(Module1<AsyncCallable0>,bool)", "bool(Expression)", "bool(ModifiableCssNode)", "SassCalculation0(Object)", "~(String,@)", "bool(Module1<AsyncCallable0>)", "bool(_Highlight)", "Null(Module0<AsyncCallable>,bool)", "String(Object)", "int(SassColor0)", "+originalUrl(Importer,Uri,Uri)?()", "int(_NodeSassColor)", "String(String{color:Object?})", "~(String,Object?)", "bool(Module1<Callable>)", "Statement()", "String(@)", "List<String>()", "Map<ComplexSelector0,Extension0>()", "bool(@)", "Map<ComplexSelector,Extension>()", "bool(Module0<Callable0>)", "~(String,Function)", "Statement0()", "~(~())", "bool(Module0<AsyncCallable>)", "String(Expression0)", "String(Expression)", "SassFunction0(List<Value0>)", "String(Value0)", "SelectorList(Value)", "SelectorList(SelectorList,SelectorList)", "Uri?()", "Uri(String)", "int(String,String)", "String?(String?)", "String?(Object)", "Iterable<String>()", "Iterable<String>(String)", "Iterable<String>(@)", "DateTime()", "~(String[~])", "int(int)", "0&(String,FileSpan[StackTrace?])", "bool(Statement)", "bool(Import)", "VariableDeclaration()", "AtRootRule(List<Statement>,FileSpan)", "AtRule(List<Statement>,FileSpan)", "Set<0^>()<Object?>", "String(String{color:@})", "Entry(Entry)", "int(double)", "~(@,@)", "double(double,String)", "AstNode(AstNode)", "SassFunction(List<Value>)", "SassMixin(List<Value>)", "Future<~>(List<Value>)", "~(Object?,Object?)", "List<ExtensionStore>()", "@(String)", "bool(ModifiableCssParentNode)", "Future<SassNumber>()", "List<CssComment>()", "bool(UseRule)", "bool(ForwardRule)", "int(ComplexSelector)", "Future<String>()", "AsyncCallable?(Module0<AsyncCallable>)", "MapKeySet<Module0<AsyncCallable>>(Map<Module0<AsyncCallable>,AstNode>)", "Future<Object>()", "InterpolationMap(List<SourceLocation>)", "AstNode?()", "String(SassNumber)", "Map<String,AsyncCallable>(Module0<AsyncCallable>)", "~(List<Value>)", "SassNumber()", "Uri?/()", "double(SassNumber0,Object,Object[String?])", "double(double,double?,num)", "Value0?(Value0)", "Future<~>?()", "~(List<Value0>)", "double?(String,num{assertPercent:bool,checkPercent:bool,checkUnitless:bool})", "String(int)", "SelectorList0(Value0)", "Map<String,Callable>(Module1<Callable>)", "Callable?(Module1<Callable>)", "~(Iterable<ExtensionStore0>)", "Version(String)", "Set<0&>(Object)", "AsyncImporter0(Object?)", "Expression0(Expression0)", "int(ComplexSelector0)", "double(SassNumber0,SassNumber0[String?,String?])", "AtRule0(List<Statement0>,FileSpan)", "Future<NodeCompileResult>()", "Trace(String)", "AtRootRule0(List<Statement0>,FileSpan)", "bool(Queue<List<ComplexSelectorComponent>>)", "Object(CalculationOperation0)", "int(SourceLocation)", "String(FileSpan)", "0&(@[@])", "SelectorList0(SelectorList0,SelectorList0)", "SassNumber0(SassNumber0,SassNumber0[String?,String?])", "0&(Object[Object?])", "String(SassNumber0)", "AstNode0?()", "InterpolationMap0(List<SourceLocation>)", "FileLocation(FileSpan)", "List<Extension>()", "SassNumber0(SassNumber0,Object,Object[String?])", "bool(SassNumber0,String)", "ImmutableList0(SassNumber0)", "~(Iterable<ExtensionStore>)", "bool(ForwardRule0)", "bool(UseRule0)", "List<CssComment0>()", "Future<SassNumber0>()", "~(Uint8List,String,int)", "int(Object?)", "bool(ModifiableCssParentNode0)", "bool(SassNumber0)", "List<ExtensionStore0>()", "bool(Object?,Object?)", "Null(_NodeSassMap,int,Object)", "Map<String,Callable0>(Module0<Callable0>)", "Object(_NodeSassMap,int)", "Value0(int)", "SassNumber0()", "SassMixin0(List<Value0>)", "~(Object[StackTrace?])", "MapKeySet<Module1<Callable>>(Map<Module1<Callable>,AstNode0>)", "@(Value0,num)", "bool(Import0)", "MapKeySet<Module0<Callable0>>(Map<Module0<Callable0>,AstNode>)", "Callable0?(Module0<Callable0>)", "AstNode0(AstNode0)", "bool(Statement0)", "bool(Queue<List<ComplexSelectorComponent0>>)", "List<Extension0>()", "Map<String,AsyncCallable0>(Module1<AsyncCallable0>)", "int(@,@)", "int(int,double?)", "MapKeySet<Module1<AsyncCallable0>>(Map<Module1<AsyncCallable0>,AstNode0>)", "AsyncCallable0?(Module1<AsyncCallable0>)", "bool(String?)", "Future<Value>(List<Value>)", "~([Object?])", "bool(Frame)", "Trace()", "String(_NodeException)", "String(Frame)", "int(Frame)", "Expression(Expression)", "Future<~>(List<Value0>)", "~(ContentBlock)", "~(List<Statement>)", "Value(Expression)", "Future<Stylesheet?>()", "~(CssMediaQuery)", "~(SelectorList)", "~(MapEntry<Value,Value>)", "SourceFile()", "SourceFile?(int)", "String?(SourceFile?)", "int(_Line)", "bool(+originalUrl(AsyncImporter,Uri,Uri))", "Object(_Line)", "Object(_Highlight)", "int(_Highlight,_Highlight)", "List<_Line>(MapEntry<Object,List<_Highlight>>)", "SourceSpanWithContext()", "List<Frame>(Trace)", "int(Trace)", "UserDefinedCallable<Environment>(ContentBlock)", "String(Trace)", "Value?(IfRuleClause)", "Uri(+originalUrl(AsyncImporter,Uri,Uri))", "Frame(String,String)", "CssValue<String>(Interpolation)", "Future<+originalUrl(AsyncImporter,Uri,Uri)?>()", "Frame(Frame)", "int(int,int)", "Value?(Value)", "~(Module0<Callable0>)", "String(Argument0)", "Uint8List(@,@)", "SassArgumentList0(Object,Object,Object[String?])", "ImmutableMap0(SassArgumentList0)", "bool(Deprecation)", "Module0<Callable0>()", "Value0?(Module1<AsyncCallable0>)", "Module1<AsyncCallable0>?(Module1<AsyncCallable0>)", "+loadedUrls,stylesheet(Set<Uri>,CssStylesheet)()", "~(String,int?)", "Map<String,Value0>(Module1<AsyncCallable0>)", "Map<String,AstNode0>(Module1<AsyncCallable0>)", "CssValue<String>(Interpolation{trim:bool,warnForColor:bool})", "Module0<Callable0>?(Module0<Callable0>)", "Future<CssValue0<String>>(Interpolation0{trim:bool,warnForColor:bool})", "Map<String,AstNode>(Module0<AsyncCallable>)", "Map<String,Value>(Module0<AsyncCallable>)", "Value/()", "Future<Value>(Expression)", "Map<String,Value>(Module0<Callable0>)", "Module0<AsyncCallable>?(Module0<AsyncCallable>)", "Value?(Module0<AsyncCallable>)", "Map<String,AstNode>(Module0<Callable0>)", "~(Module1<AsyncCallable0>,bool)", "Future<+loadedUrls,stylesheet(Set<Uri>,CssStylesheet0)>()", "Future<Module1<AsyncCallable0>>()", "UserDefinedCallable<AsyncEnvironment>(ContentBlock)", "~(Module1<AsyncCallable0>)", "Future<Value?>(IfRuleClause)", "~(String,int)", "SimpleSelector(SimpleSelector)", "ArgParser()", "Future<Value0?>(Value0)", "Set<Deprecation>()", "Future<CssValue0<String>>(Interpolation0)", "Future<~>(String)", "Future<CssValue<String>>(Interpolation)", "List<WatchEvent>(List<WatchEvent>)", "~(Symbol0,@)", "Future<Value0?>(IfRuleClause0)", "Future<Value?>(Value)", "Iterable<ComplexSelector>(ComplexSelector)", "UserDefinedCallable0<AsyncEnvironment0>(ContentBlock0)", "SassList(ComplexSelector)", "bool(Extension)", "Set<ModifiableBox<SelectorList>>()", "Object?(Object?)", "~(Module0<AsyncCallable>)", "Iterable<ComplexSelector>(List<ComplexSelector>)", "Future<Value0>(Expression0)", "List<SimpleSelector>(Extender)", "Value0/()", "List<Extender>?(SimpleSelector)", "List<Extender>(PseudoSelector)", "List<List<Extender>>(List<Extender>)", "Future<Module0<AsyncCallable>>()", "Future<+loadedUrls,stylesheet(Set<Uri>,CssStylesheet)>()", "~(Module0<AsyncCallable>,bool)", "Future<+originalUrl(AsyncImporter0,Uri,Uri)?>()", "Future<Stylesheet0?>()", "bool(+originalUrl(AsyncImporter0,Uri,Uri))", "Uri(+originalUrl(AsyncImporter0,Uri,Uri))", "AtRootQuery0()", "int(int,SimpleSelector)", "String(CssValue<Combinator>)", "List<ComplexSelector>(ComplexSelector)", "PseudoSelector(ComplexSelector)", "SassCalculation0(Object[Object?,Object?])", "SassCalculation0(SassCalculation0[String?])", "ImmutableList(SassCalculation0)", "Object(Object,String,Object,Object)", "bool(CalculationOperator0)", "bool(CalculationOperation0,Object)", "int(CalculationOperation0)", "String(CalculationOperation0)", "int(int,ComplexSelectorComponent)", "CalculationInterpolation(Object,String)", "bool(CalculationInterpolation,Object)", "int(CalculationInterpolation)", "String(CalculationInterpolation)", "bool(CanonicalizeContext0)", "JSUrl0?(CanonicalizeContext0)", "~(SimpleSelector,Set<ModifiableBox<SelectorList>>)", "List<ComplexSelectorComponent>?(List<ComplexSelectorComponent>,List<ComplexSelectorComponent>)", "SingleUnitSassNumber(double)", "bool(List<Iterable<ComplexSelectorComponent>>)", "bool(PseudoSelector)", "Value?(Module0<Callable0>)", "0&(List<Value0>)", "SassColor0(Object,_Channels)", "SassColor0(SassColor0,_Channels)", "SelectorList?(PseudoSelector)", "@(@,String)", "Null(_NodeSassColor,num?[num?,num?,num?,SassColor0?])", "~(String,Option)", "double(_NodeSassColor)", "_Future<@>(@)", "SassScriptException()", "DateTime(StylesheetNode)", "AsyncImporter0(JSImporter)", "0&(@)", "Null(@,@)", "Iterable<Deprecation0>()", "NodePackageImporter0(Object[String?])", "StringExpression(Interpolation)", "NodeCompileResult(Compiler,String[CompileOptions?])", "NodeCompileResult(Compiler,String[CompileStringOptions?])", "Null(Compiler)", "Promise(AsyncCompiler,String[CompileOptions?])", "Promise(AsyncCompiler,String[CompileStringOptions?])", "Promise(AsyncCompiler)", "Future<AsyncCompiler>()", "int(int,ComplexSelectorComponent0)", "String(CssValue0<Combinator0>)", "int(int,SimpleSelector0)", "String(BuiltInCallable0)", "bool(Deprecation0)", "Version(Object,int,int,int)", "~(BinaryOperator)", "~(Expression)", "Value0?(Module1<Callable>)", "Module1<Callable>?(Module1<Callable>)", "WhileRule(List<Statement>,FileSpan)", "Object(Value0)", "Map<String,Value0>(Module1<Callable>)", "Map<String,AstNode0>(Module1<Callable>)", "SupportsRule(List<Statement>,FileSpan)", "MixinRule(List<Statement>,FileSpan)", "CssValue0<String>(Interpolation0{trim:bool,warnForColor:bool})", "MediaRule(List<Statement>,FileSpan)", "ContentBlock(List<Statement>,FileSpan)", "ForRule(List<Statement>,FileSpan)", "+loadedUrls,stylesheet(Set<Uri>,CssStylesheet0)()", "Module1<Callable>()", "~(Module1<Callable>)", "FunctionRule(List<Statement>,FileSpan)", "EachRule(List<Statement>,FileSpan)", "CssValue0<String>(Interpolation0)", "Declaration(List<Statement>,FileSpan)", "Value0?(IfRuleClause0)", "UserDefinedCallable0<Environment0>(ContentBlock0)", "Value0(Expression0)", "StyleRule(List<Statement>,FileSpan)", "FileSpan(_NodeException)", "bool(Extension0)", "Set<ModifiableBox0<SelectorList0>>()", "UseRule()", "ArgumentDeclaration()", "Iterable<ComplexSelector0>(List<ComplexSelector0>)", "String(Value)", "List<SimpleSelector0>(Extender0)", "List<Extender0>?(SimpleSelector0)", "List<Extender0>(PseudoSelector0)", "List<List<Extender0>>(List<Extender0>)", "List<ComplexSelector0>(ComplexSelector0)", "PseudoSelector0(ComplexSelector0)", "~(SimpleSelector0,Set<ModifiableBox0<SelectorList0>>)", "SassFunction0(Object,String,Value0(List<Value0>))", "List<ComplexSelectorComponent0>?(List<ComplexSelectorComponent0>,List<ComplexSelectorComponent0>)", "VariableDeclaration(VariableDeclaration)", "bool(List<Iterable<ComplexSelectorComponent0>>)", "0&(List<Value>)", "bool(PseudoSelector0)", "SelectorList0?(PseudoSelector0)", "String(int,IfClause0)", "Statement?()", "Stylesheet()", "~(Object?,Object,Object?)", "+(String,String)(String)", "Future<~>(List<String>)", "Stylesheet0?()", "bool(+originalUrl(Importer0,Uri,Uri))", "Uri(+originalUrl(Importer0,Uri,Uri))", "~(String,WarnOptions)", "~(String,DebugOptions)", "Null(RenderResult)", "JSFunction0(JSFunction0)", "Object?(Object,String,String[Object?])", "Null(Object)", "Null(@,StackTrace)", "List<Value0>(Value0)", "bool(List<Value0>)", "SassList0(ComplexSelector0)", "Iterable<ComplexSelector0>(ComplexSelector0)", "SimpleSelector0(SimpleSelector0)", "SassList0(Object[Object?,_ConstructorOptions?])", "Expression({bracketList:bool,singleEquals:bool,until:bool()?})", "Null(_NodeSassList,int?[bool?,SassList0?])", "Statement({root:bool})", "Object(_NodeSassList,int)", "Null(_NodeSassList,int,Object)", "bool(_NodeSassList)", "Null(_NodeSassList,bool)", "int(_NodeSassList)", "SassMap0(Value0)", "SassMap0(SassMap0)", "SassMap0(Object[ImmutableMap0?])", "ImmutableMap0(SassMap0)", "@(SassMap0,Object)", "Null(_NodeSassMap,int?[SassMap0?])", "SassNumber0(int)", "CompoundSelector()", "int(_NodeSassMap)", "SelectorList()", "SassNumber0(Value0)", "List<CssMediaQuery0>()", "Value0(Object)", "0&(Object)", "SassNumber0(Object,num[Object?])", "double(SassNumber0)", "String(int,IfClause)", "int?(SassNumber0)", "List<CssMediaQuery>()", "int(SassNumber0[String?])", "double(SassNumber0,num,num[String?])", "SassNumber0(SassNumber0[String?])", "SassNumber0(SassNumber0,String[String?])", "String(BuiltInCallable)", "AtRootQuery()", "~(int,@)", 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assNumber0":{"SassNumber0":[],"Value0":[]},"UniversalSelector0":{"SimpleSelector0":[],"AstNode0":[]},"UnprefixedMapView0":{"MapBase":["String","1"],"Map":["String","1"],"MapBase.V":"1","MapBase.K":"String"},"_UnprefixedKeys0":{"Iterable":["String"],"Iterable.E":"String"},"UseRule0":{"Statement0":[],"AstNode0":[]},"UserDefinedCallable0":{"Callable":[],"AsyncCallable0":[]},"CssValue0":{"AstNode0":[]},"ValueExpression0":{"Expression0":[],"AstNode0":[]},"VariableExpression0":{"Expression0":[],"AstNode0":[]},"VariableDeclaration0":{"Statement0":[],"AstNode0":[]},"WarnRule0":{"Statement0":[],"AstNode0":[]},"WhileRule0":{"Statement0":[],"AstNode0":[]},"Int8List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint8List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint8ClampedList":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Int16List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint16List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Int32List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Uint32List":{"List":["int"],"EfficientLengthIterable":["int"],"Iterable":["int"]},"Float32List":{"List":["double"],"EfficientLengthIterable":["double"],"Iterable":["double"]},"Float64List":{"List":["double"],"EfficientLengthIterable":["double"],"Iterable":["double"]},"CssComment":{"CssNode":[],"AstNode":[]},"Import":{"AstNode":[]},"Statement":{"AstNode":[]},"Callable0":{"AsyncCallable":[]},"Callable":{"AsyncCallable0":[]},"CssComment0":{"CssNode0":[],"AstNode0":[]},"Import0":{"AstNode0":[]},"Statement0":{"AstNode0":[]}}'));
+  A._Universe_addErasedTypes(init.typeUniverse, JSON.parse('{"WhereIterator":1,"SkipIterator":1,"SkipWhileIterator":1,"EmptyIterator":1,"FollowedByIterator":1,"FixedLengthListMixin":1,"UnmodifiableListMixin":1,"UnmodifiableListBase":1,"__CastListBase__CastIterableBase_ListMixin":2,"ConstantSet":1,"LinkedHashMapKeyIterator":1,"NativeTypedArray":1,"EventSink":1,"_SyncStarIterator":1,"_SyncStreamControllerDispatch":1,"_AsyncStreamControllerDispatch":1,"_AddStreamState":1,"_StreamControllerAddStreamState":1,"_DelayedEvent":1,"_DelayedData":1,"_PendingEvents":1,"_StreamIterator":1,"_ZoneFunction":1,"Queue":1,"UnmodifiableMapBase":2,"_UnmodifiableMapMixin":2,"MapView":2,"_UnmodifiableSetMixin":1,"_UnmodifiableMapView_MapView__UnmodifiableMapMixin":2,"_UnmodifiableSetView_SetBase__UnmodifiableSetMixin":1,"_StringSinkConversionSink":1,"Expando":1,"_EventRequest":1,"_EmptyUnmodifiableSet_IterableBase_UnmodifiableSetMixin":1,"DefaultEquality":1,"IterableEquality":1,"ListEquality":1,"_QueueList_Object_ListMixin":1,"_UnionSet_SetBase_UnmodifiableSetMixin":1,"UnmodifiableSetMixin":1,"_UnmodifiableSetView_DelegatingSet_UnmodifiableSetMixin":1,"_DelegatingIterableBase":1,"_MapKeySet__DelegatingIterableBase_UnmodifiableSetMixin":1,"ParentStatement":1,"ParentStatement0":1}'));
+  var string$ = {
+    x0a_BUG_: "\n\nBUG: This should include a source span!",
+    x0a_Morex20: "\n\nMore info and automated migrator: https://sass-lang.com/d/slash-div",
+    x0a_Morex3a: "\n\nMore info: https://sass-lang.com/d/function-units",
+    x0a_See_: "\n\nSee https://sass-lang.com/d/function-units",
+    x0a_This: "\n\nThis is only an error because you've set the ",
+    x0a_To_p: "\n\nTo preserve current behavior: math.random(math.div($limit, 1",
+    x0a_but_: "\n\nbut you may have intended it to mean:\n\n    ",
+    x0aRun_i: "\nRun in verbose mode to see all warnings.",
+    x0aThis_: "\nThis will be an error in Dart Sass 2.0.0.\n\nMore info: https://sass-lang.com/d/bogus-combinators",
+    x0aYou_m: "\nYou may not @extend the same selector from within different media queries.",
+    x20It_wi: " It will be omitted from the generated CSS.",
+    x20be_an: " be an extender.\nThis will be an error in Dart Sass 2.0.0.\n\nMore info: https://sass-lang.com/d/bogus-combinators",
+    x20can_n: " can not have both conditions and paths at the same level.\nFound ",
+    x20deprex20i: " deprecation is not yet active, so silencing it is unnecessary.",
+    x20deprex20m: " deprecation must be enabled before it can be made fatal.",
+    x20deprex20t: " deprecation to be fatal.\nRemove this setting if you need to keep using this feature.",
+    x20deprex2c: " deprecation, since it has also been made fatal.",
+    x20in_in: " in interpolation here.\nIt may end up represented as ",
+    x20is_as: " is asynchronous.\nThis is probably caused by a bug in a Sass plugin.",
+    x20is_av: " is available from multiple global modules.",
+    x20is_de: " is deprecated.\n\nTo preserve current behavior: ",
+    x20is_noaf: " is not a future deprecation, so it does not need to be explicitly enabled.",
+    x20is_noav: " is not a valid selector: it must be a string,\na list of strings, or a list of lists of strings.",
+    x20is_nov: " is not valid CSS.\nThis will be an error in Dart Sass 2.0.0.\n\nMore info: https://sass-lang.com/d/bogus-combinators",
+    x20must_b: " must be either nearest, up, down or to-zero.",
+    x20must_n: " must not be greater than the number of characters in the file, ",
+    x20repet: " repetitive deprecation warnings omitted.",
+    x20targe: " targetLocations if the interpolation has ",
+    x20to_cl: " to clarify that it's meant to be a binary operation, or wrap\nit in parentheses to make it a unary operation. This will be an error in future\nversions of Sass.\n\nMore info and automated migrator: https://sass-lang.com/d/strict-unary",
+    x20to_co: " to color.opacity() is deprecated.\n\nRecommendation: ",
+    x20was_a: ' was already loaded, so it can\'t be configured using "with".',
+    x20was_n: " was not declared with !default in the @used module.",
+    x20was_p: " was passed both by position and by name.",
+    x21defau: "!default should only be written once for each variable.\nThis will be an error in Dart Sass 2.0.0.",
+    x21globai: "!global isn't allowed for variables in other modules.",
+    x21globas: "!global should only be written once for each variable.\nThis will be an error in Dart Sass 2.0.0.",
+    x22x20can_: "\" can't be used as a parent in a compound selector.",
+    x22x20is_ix0a: '" is invalid CSS.\nThis will be an error in Dart Sass 2.0.0.\n\nMore info: https://sass-lang.com/d/bogus-combinators',
+    x22x20is_ix20: '" is invalid CSS. It will be omitted from the generated CSS.\nThis will be an error in Dart Sass 2.0.0.\n\nMore info: https://sass-lang.com/d/bogus-combinators',
+    x22x20is_n: '" is not a valid Sass identifier.\n\nRecommendation: add an "as" clause to define an explicit namespace.',
+    x22x20is_o: "\" is only valid for nesting and shouldn't\nhave children other than style rules.",
+    x22x26__ma: '"&" may only used at the beginning of a compound selector.',
+    x22x29__If: "\").\nIf you really want to use the color value here, use '",
+    x22x2b__an: '"+" and "-" must be surrounded by whitespace in calculations.',
+    x22packa: '"package:" URLs aren\'t supported on this platform.',
+    x24css_a: "$css and $module may not both be passed at once.",
+    x24list1: "$list1, $list2, $separator: auto, $bracketed: auto",
+    x24selec: "$selectors: At least one selector must be passed.",
+    x24separ: '$separator: Must be "space", "comma", "slash", or "auto".',
+    x27x20must: "' must be a path relative to the package root at '",
+    x27x2c_whi: "', which is not a '.scss', '.sass', or '.css' file.",
+    x28__isn: "() isn't in the sass:color module.\n\nRecommendation: color.adjust(",
+    x29x0a_Mor: ")\n\nMore info: https://sass-lang.com/documentation/functions/color#",
+    x29x20in_a: ") in a future release.\n\nRecommendation: math.random(math.div($limit, 1",
+    x29x20is_d: ") is deprecated.\n\nTo preserve current behavior: ",
+    x29x20to_cg: ") to color.grayscale() is deprecated.\n\nRecommendation: ",
+    x29x20to_ci: ") to color.invert() is deprecated.\n\nRecommendation: ",
+    x29x29__Mo: "))\n\nMore info: https://sass-lang.com/d/function-units",
+    x2c_whicu: ", which uses a scheme declared as non-canonical.",
+    x2c_whicw: ', which will likely produce invalid CSS.\nAlways quote color names when using them as strings or map keys (for example, "',
+    x2e_Rela: ".\nRelative canonical URLs are deprecated and will eventually be disallowed.",
+    x3d_____: "===== asynchronous gap ===========================\n",
+    x40_moz_: "@-moz-document is deprecated and support will be removed in Dart Sass 2.0.0.\n\nFor details, see https://sass-lang.com/d/moz-document.",
+    x40conte: "@content is only allowed within mixin declarations.",
+    x40elsei: "@elseif is deprecated and will not be supported in future Sass versions.\n\nRecommendation: @else if",
+    x40exten: "@extend may only be used within style rules.",
+    x40forwa: "@forward rules must be written before any other rules.",
+    x40funct: "@function if($condition, $if-true, $if-false) {",
+    x40use_r: "@use rules must be written before any other rules.",
+    A_list: "A list with more than one element must have an explicit separator.",
+    A_pkg_h: "A pkg: URL must not have a host, port, username or password.",
+    A_pkg_q: "A pkg: URL must not have a query or fragment.",
+    ABCDEF: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
+    An_impa: "An importer may not have a findFileUrl method as well as canonicalize and load methods.",
+    An_impu: "An importer must have either canonicalize and load methods, or a findFileUrl method.",
+    As_of_R: "As of Dart Sass 2.0.0, !global assignments won't be able to declare new variables.\n\nRecommendation: add `",
+    As_of_S: "As of Dart Sass 2.0.0, !global assignments won't be able to declare new variables.\n\nSince this assignment is at the root of the stylesheet, the !global flag is\nunnecessary and can safely be removed.",
+    At_rul: "At-rules may not be used within nested declarations.",
+    Cannotff: "Cannot extract a file path from a URI with a fragment component",
+    Cannotfq: "Cannot extract a file path from a URI with a query component",
+    Cannotn: "Cannot extract a non-Windows file path from a file URI with an authority",
+    Comple: "ComplexSassNumber.hasPossiblyCompatibleUnits is not implemented.",
+    Could_: 'Could not find an option with short name "-',
+    CssNod: "CssNodes must have a CssStylesheet transitive parent node.",
+    Custom: "Custom importers are required to load stylesheets when compiling in the browser.",
+    Declarm: "Declarations may only be used within style rules.",
+    Declarw: 'Declarations whose names begin with "--" may not be nested.',
+    Either: "Either options.data or options.file must be set.",
+    Entrie: "Entries may not be removed from MergedMapView.",
+    Error_: "Error handler must accept one Object or one Object and a StackTrace as arguments, and return a value of the returned future's type",
+    Evalua: "Evaluation handles @include and its content block together.",
+    Expect: "Expected variable, mixin, or function name",
+    Functi: "Functions may not be declared in control directives.",
+    HSL_pa: "HSL parameters may not be passed along with HWB parameters.",
+    If_con: "If conditions is longer than one element, conjunction may not be null.",
+    If_par: "If parsedAsCustomProperty is true, value must contain a SassString (was `",
+    If_str: "If strategy is not null, step is required.",
+    In_Sas: 'In Sass, "&&" means two copies of the parent selector. You probably want to use "and" instead.',
+    Indent: "Indenting at the beginning of the document is illegal.",
+    Interpn: "Interpolation isn't allowed in namespaces.",
+    Interpp: "Interpolation isn't allowed in plain CSS.",
+    Invali: 'Invalid return value for custom function "',
+    It_s_n: "It's not clear which file to import. Found:\n",
+    Keywor: "Keyword arguments can't be used with calculations.",
+    May_on: "May only contains Strings or Expressions.",
+    Media_: "Media rules may not be used within nested declarations.",
+    Mixinsb: "Mixins may not be declared in control directives.",
+    Mixinscf: "Mixins may not contain function declarations.",
+    Mixinscm: "Mixins may not contain mixin declarations.",
+    Modulel: "Module loop: this module is already being loaded.",
+    Modulen: "Module namespaces aren't allowed in plain CSS.",
+    Nested: "Nested declarations aren't allowed in plain CSS.",
+    New_en: "New entries may not be added to MergedMapView.",
+    No_Sasc: "No Sass callable is currently being evaluated.",
+    No_Sass: "No Sass stylesheet is currently being evaluated.",
+    NoSour: "NoSourceMapBuffer.buildSourceMap() is not supported.",
+    None_o: "None of the patterns in the switch expression the matched input value. See https://github.com/dart-lang/language/issues/3488 for details.",
+    Number: "Number to round and step arguments are required.",
+    Only_2: "Only 2 slash-separated elements allowed, but ",
+    Only_oa: "Only one argument may be passed to the plain-CSS invert() function.",
+    Only_op: "Only one positional argument is allowed. All other arguments must be passed by name.",
+    Other_: "Other modules' members can't be defined with !global.",
+    Parent: "Parent selectors can't have suffixes in plain CSS.",
+    Passina: "Passing a string to call() is deprecated and will be illegal in Dart Sass 2.0.0.\n\nRecommendation: call(get-function(",
+    Passinp: "Passing percentage units to the global abs() function is deprecated.\nIn the future, this will emit a CSS abs() function to be resolved by the browser.\nTo preserve current behavior: math.abs(",
+    Placeh: "Placeholder selectors aren't allowed in plain CSS.",
+    Plain_: "Plain CSS functions don't support keyword arguments.",
+    Positi: "Positional arguments must come before keyword arguments.",
+    Privat: "Private members can't be accessed from outside their modules.",
+    RGB_pa: "RGB parameters may not be passed along with ",
+    Rest_a: "Rest arguments can't be used with calculations.",
+    Sass__ff: "Sass @function names beginning with -- are deprecated for forward-compatibility with plain CSS functions.\n\nFor details, see https://sass-lang.com/d/css-function-mixin",
+    Sass__fm: "Sass @function names beginning with -- are deprecated for forward-compatibility with plain CSS mixins.\n\nFor details, see https://sass-lang.com/d/css-function-mixin",
+    Sass__i: "Sass @import rules will be deprecated in the future.\nRemove the --future-deprecation=import flag to silence this warning for now.",
+    Sass__m: "Sass @mixin names beginning with -- are deprecated for forward-compatibility with plain CSS mixins.\n\nFor details, see https://sass-lang.com/d/css-function-mixin",
+    Sass_v: "Sass variables aren't allowed in plain CSS.",
+    Silent: "Silent comments aren't allowed in plain CSS.",
+    Style_k: "Style rules may not be used within keyframe blocks.",
+    Style_n: "Style rules may not be used within nested declarations.",
+    Suppor: "Supports rules may not be used within nested declarations.",
+    The_Ex: "The ExtensionStore and CssStylesheet passed to cloneCssStylesheet() must come from the same compilation.",
+    The_No: "The Node package importer cannot be used without a filesystem.",
+    The_ca: "The canonicalize() method must return a URL.",
+    The_fie: "The findFileUrl() method must return a URL.",
+    The_fiu: 'The findFileUrl() must return a URL with scheme file://, was "',
+    The_gi: "The given LineScannerState was not returned by this LineScanner.",
+    The_lo: "The load() function must return an object with contents and syntax fields.",
+    The_pa: "The parent selector isn't allowed in plain CSS.",
+    The_sa: "The same variable may only be configured once.",
+    The_ta: 'The target selector was not found.\nUse "@extend ',
+    There_: "There's already a module with namespace \"",
+    This_d: 'This declaration has no argument named "$',
+    This_e: "This expression can't be used in a calculation.",
+    This_f: "This function isn't allowed in plain CSS.",
+    This_ma: 'This module and the new module both define a variable named "$',
+    This_mw: 'This module was already loaded, so it can\'t be configured using "with".',
+    This_o: "This operation can't be used in a calculation.",
+    This_s: "This selector doesn't have any properties and won't be rendered.",
+    This_v: "This variable was not declared with !default in the @used module.",
+    Top_lel: "Top-level leading combinators aren't allowed in plain CSS.",
+    Top_les: 'Top-level selectors may not contain the parent selector "&".',
+    Unable: "Unable to determine which of multiple potential resolutions found for ",
+    Unexpe: "Unexpected Zone.current[#_canonicalizeContext] value ",
+    User_a: "User-authored deprecations should not be silenced.",
+    Using__i: "Using / for division is deprecated and will be removed in Dart Sass 2.0.0.\n\nRecommendation: ",
+    Using__o: "Using / for division outside of calc() is deprecated and will be removed in Dart Sass 2.0.0.\n\nRecommendation: ",
+    Using_c: "Using color.alpha() for a Microsoft filter is deprecated.\n\nRecommendation: ",
+    Using_t: "Using the current working directory as an implicit load path is deprecated. Either add it as an explicit load path or importer, or load this stylesheet from a different URL.",
+    Variab_: "Variable keyword argument map must have string keys.\n",
+    Variabs: "Variable keyword arguments must be a map (was ",
+    You_ma: "You may not @extend selectors across media queries.",
+    You_pr: "You probably don't mean to use the color value ",
+    x60_inst: "` instead.\nSee https://sass-lang.com/d/extend-compound for details.\n",
+    addExt: "addExtensions() can't be called for a const ExtensionStore.",
+    canoni: "canonicalizeContext may only be accessed within a call to canonicalize().",
+    compou: "compound selectors may no longer be extended.\nConsider `@extend ",
+    conten: "content-exists() may only be called within a mixin.",
+    fileEx: "fileExists() is only supported on Node.js",
+    leadin: "leadingCombinators and components may not both be empty.",
+    math_d: "math.div() will only support number arguments in a future release.\nUse list.slash() instead for a slash separator.",
+    math_r: "math.random() will no longer ignore $limit units (",
+    must_b: "must be a UniversalSelector or a TypeSelector",
+    parsed: 'parsedAsCustomProperty must be false if name doesn\'t begin with "--".',
+    semico: "semicolons aren't allowed in the indented syntax.",
+    throug: "through() must return false for at least one parent of ",
+    x7d__Mor: "})\nMore info: https://sass-lang.com/d/abs-percent"
+  };
+  var type$ = (function rtii() {
+    var findType = A.findType;
+    return {
+      $env_1_1_String: findType("@<String>"),
+      ArgParser: findType("ArgParser"),
+      Argument: findType("Argument"),
+      ArgumentDeclaration: findType("ArgumentDeclaration"),
+      ArgumentDeclaration_2: findType("ArgumentDeclaration0"),
+      Argument_2: findType("Argument0"),
+      AstNode: findType("AstNode"),
+      AstNode_2: findType("AstNode0"),
+      AsyncBuiltInCallable: findType("AsyncBuiltInCallable"),
+      AsyncBuiltInCallable_2: findType("AsyncBuiltInCallable0"),
+      AsyncCallable: findType("AsyncCallable"),
+      AsyncCallable_2: findType("AsyncCallable0"),
+      AsyncCompiler: findType("AsyncCompiler"),
+      AsyncImporter: findType("AsyncImporter0"),
+      Box_SelectorList: findType("Box<SelectorList>"),
+      Box_SelectorList_2: findType("Box0<SelectorList0>"),
+      BuiltInCallable: findType("BuiltInCallable"),
+      BuiltInCallable_2: findType("BuiltInCallable0"),
+      BuiltInModule_AsyncCallable: findType("BuiltInModule<AsyncCallable>"),
+      BuiltInModule_AsyncCallable_2: findType("BuiltInModule0<AsyncCallable0>"),
+      BuiltInModule_Callable: findType("BuiltInModule<Callable0>"),
+      BuiltInModule_Callable_2: findType("BuiltInModule0<Callable>"),
+      ByteBuffer: findType("ByteBuffer"),
+      ByteData: findType("ByteData"),
+      Callable: findType("Callable0"),
+      Callable_2: findType("Callable"),
+      ChangeType: findType("ChangeType"),
+      CodeUnits: findType("CodeUnits"),
+      Combinator: findType("Combinator"),
+      Combinator_2: findType("Combinator0"),
+      Comparable_dynamic: findType("Comparable<@>"),
+      Comparable_nullable_Object: findType("Comparable<Object?>"),
+      CompileResult: findType("CompileResult"),
+      CompileResult_2: findType("CompileResult0"),
+      ComplexSelector: findType("ComplexSelector"),
+      ComplexSelectorComponent: findType("ComplexSelectorComponent"),
+      ComplexSelectorComponent_2: findType("ComplexSelectorComponent0"),
+      ComplexSelector_2: findType("ComplexSelector0"),
+      Configuration: findType("Configuration"),
+      Configuration_2: findType("Configuration0"),
+      ConfiguredValue: findType("ConfiguredValue"),
+      ConfiguredValue_2: findType("ConfiguredValue0"),
+      ConfiguredVariable: findType("ConfiguredVariable"),
+      ConfiguredVariable_2: findType("ConfiguredVariable0"),
+      ConstantMapView_Symbol_dynamic: findType("ConstantMapView<Symbol0,@>"),
+      ConstantStringMap_String_double: findType("ConstantStringMap<String,double>"),
+      ConstantStringSet_String: findType("ConstantStringSet<String>"),
+      CssComment: findType("CssComment"),
+      CssComment_2: findType("CssComment0"),
+      CssMediaQuery: findType("CssMediaQuery"),
+      CssMediaQuery_2: findType("CssMediaQuery0"),
+      CssParentNode: findType("CssParentNode"),
+      CssParentNode_2: findType("CssParentNode0"),
+      CssStylesheet: findType("CssStylesheet"),
+      CssStylesheet_2: findType("CssStylesheet0"),
+      CssValue_Combinator: findType("CssValue<Combinator>"),
+      CssValue_Combinator_2: findType("CssValue0<Combinator0>"),
+      CssValue_List_String: findType("CssValue<List<String>>"),
+      CssValue_List_String_2: findType("CssValue0<List<String>>"),
+      CssValue_String: findType("CssValue<String>"),
+      CssValue_String_2: findType("CssValue0<String>"),
+      CssValue_Value: findType("CssValue<Value>"),
+      CssValue_Value_2: findType("CssValue0<Value0>"),
+      DateTime: findType("DateTime"),
+      Deprecation: findType("Deprecation"),
+      Deprecation_2: findType("Deprecation1"),
+      Deprecation_3: findType("Deprecation0"),
+      EfficientLengthIterable_dynamic: findType("EfficientLengthIterable<@>"),
+      Error: findType("Error"),
+      EvaluationContext: findType("EvaluationContext"),
+      EvaluationContext_2: findType("EvaluationContext0"),
+      Exception: findType("Exception"),
+      Expression: findType("Expression"),
+      Expression_2: findType("Expression0"),
+      Extender: findType("Extender"),
+      Extender_2: findType("Extender0"),
+      Extension: findType("Extension"),
+      Extension_2: findType("Extension0"),
+      FileLocation: findType("FileLocation"),
+      FileSpan: findType("FileSpan"),
+      Float32List: findType("Float32List"),
+      Float64List: findType("Float64List"),
+      FormatException: findType("FormatException"),
+      Frame: findType("Frame"),
+      Function: findType("Function"),
+      FutureGroup_void: findType("FutureGroup<~>"),
+      FutureOr_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet: findType("+loadedUrls,stylesheet(Set<Uri>,CssStylesheet)/"),
+      FutureOr_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2: findType("+loadedUrls,stylesheet(Set<Uri>,CssStylesheet0)/"),
+      FutureOr_nullable_Uri: findType("Uri?/"),
+      Future_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet: findType("Future<+loadedUrls,stylesheet(Set<Uri>,CssStylesheet)>"),
+      Future_Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2: findType("Future<+loadedUrls,stylesheet(Set<Uri>,CssStylesheet0)>"),
+      Future_Value: findType("Future<Value>"),
+      Future_Value_2: findType("Future<Value0>"),
+      Future_nullable_CssValue_String: findType("Future<CssValue<String>?>"),
+      Future_nullable_CssValue_String_2: findType("Future<CssValue0<String>?>"),
+      Future_nullable_ImporterResult: findType("Future<ImporterResult0?>"),
+      Future_nullable_Uri: findType("Future<Uri?>"),
+      Future_nullable_Value: findType("Future<Value?>"),
+      Future_nullable_Value_2: findType("Future<Value0?>"),
+      Future_void: findType("Future<~>"),
+      IfClause: findType("IfClause"),
+      IfClause_2: findType("IfClause0"),
+      ImmutableList: findType("ImmutableList0"),
+      ImmutableList_2: findType("ImmutableList"),
+      ImmutableMap: findType("ImmutableMap0"),
+      Import: findType("Import"),
+      Import_2: findType("Import0"),
+      Importer: findType("Importer0"),
+      ImporterResult: findType("ImporterResult"),
+      ImporterResult_2: findType("ImporterResult0"),
+      Importer_2: findType("Importer"),
+      Int16List: findType("Int16List"),
+      Int32List: findType("Int32List"),
+      Int8List: findType("Int8List"),
+      Interpolation: findType("Interpolation"),
+      InterpolationBuffer: findType("InterpolationBuffer"),
+      InterpolationBuffer_2: findType("InterpolationBuffer0"),
+      Interpolation_2: findType("Interpolation0"),
+      Iterable_ComplexSelectorComponent: findType("Iterable<ComplexSelectorComponent>"),
+      Iterable_ComplexSelectorComponent_2: findType("Iterable<ComplexSelectorComponent0>"),
+      Iterable_dynamic: findType("Iterable<@>"),
+      Iterable_nullable_Object: findType("Iterable<Object?>"),
+      JSArray_Argument: findType("JSArray<Argument>"),
+      JSArray_Argument_2: findType("JSArray<Argument0>"),
+      JSArray_AstNode: findType("JSArray<AstNode>"),
+      JSArray_AstNode_2: findType("JSArray<AstNode0>"),
+      JSArray_AsyncBuiltInCallable: findType("JSArray<AsyncBuiltInCallable>"),
+      JSArray_AsyncBuiltInCallable_2: findType("JSArray<AsyncBuiltInCallable0>"),
+      JSArray_AsyncCallable: findType("JSArray<AsyncCallable>"),
+      JSArray_AsyncCallable_2: findType("JSArray<AsyncCallable0>"),
+      JSArray_AsyncImporter: findType("JSArray<AsyncImporter0>"),
+      JSArray_AsyncImporter_2: findType("JSArray<AsyncImporter>"),
+      JSArray_BinaryOperator: findType("JSArray<BinaryOperator>"),
+      JSArray_BinaryOperator_2: findType("JSArray<BinaryOperator0>"),
+      JSArray_BuiltInCallable: findType("JSArray<BuiltInCallable>"),
+      JSArray_BuiltInCallable_2: findType("JSArray<BuiltInCallable0>"),
+      JSArray_Callable: findType("JSArray<Callable0>"),
+      JSArray_Callable_2: findType("JSArray<Callable>"),
+      JSArray_ComplexSelector: findType("JSArray<ComplexSelector>"),
+      JSArray_ComplexSelectorComponent: findType("JSArray<ComplexSelectorComponent>"),
+      JSArray_ComplexSelectorComponent_2: findType("JSArray<ComplexSelectorComponent0>"),
+      JSArray_ComplexSelector_2: findType("JSArray<ComplexSelector0>"),
+      JSArray_ConfiguredVariable: findType("JSArray<ConfiguredVariable>"),
+      JSArray_ConfiguredVariable_2: findType("JSArray<ConfiguredVariable0>"),
+      JSArray_CssComment: findType("JSArray<CssComment>"),
+      JSArray_CssComment_2: findType("JSArray<CssComment0>"),
+      JSArray_CssMediaQuery: findType("JSArray<CssMediaQuery>"),
+      JSArray_CssMediaQuery_2: findType("JSArray<CssMediaQuery0>"),
+      JSArray_CssNode: findType("JSArray<CssNode>"),
+      JSArray_CssNode_2: findType("JSArray<CssNode0>"),
+      JSArray_CssValue_Combinator: findType("JSArray<CssValue<Combinator>>"),
+      JSArray_CssValue_Combinator_2: findType("JSArray<CssValue0<Combinator0>>"),
+      JSArray_Entry: findType("JSArray<Entry>"),
+      JSArray_Expression: findType("JSArray<Expression>"),
+      JSArray_Expression_2: findType("JSArray<Expression0>"),
+      JSArray_Extender: findType("JSArray<Extender>"),
+      JSArray_Extender_2: findType("JSArray<Extender0>"),
+      JSArray_Extension: findType("JSArray<Extension>"),
+      JSArray_ExtensionStore: findType("JSArray<ExtensionStore>"),
+      JSArray_ExtensionStore_2: findType("JSArray<ExtensionStore0>"),
+      JSArray_Extension_2: findType("JSArray<Extension0>"),
+      JSArray_ForwardRule: findType("JSArray<ForwardRule>"),
+      JSArray_ForwardRule_2: findType("JSArray<ForwardRule0>"),
+      JSArray_Frame: findType("JSArray<Frame>"),
+      JSArray_Future_nullable_Record_3_int_and_String_and_nullable_String: findType("JSArray<Future<+(int,String,String?)?>>"),
+      JSArray_IfClause: findType("JSArray<IfClause>"),
+      JSArray_IfClause_2: findType("JSArray<IfClause0>"),
+      JSArray_Import: findType("JSArray<Import>"),
+      JSArray_Import_2: findType("JSArray<Import0>"),
+      JSArray_Importer: findType("JSArray<Importer>"),
+      JSArray_Importer_2: findType("JSArray<Importer0>"),
+      JSArray_Iterable_ComplexSelectorComponent: findType("JSArray<Iterable<ComplexSelectorComponent>>"),
+      JSArray_Iterable_ComplexSelectorComponent_2: findType("JSArray<Iterable<ComplexSelectorComponent0>>"),
+      JSArray_JSFunction: findType("JSArray<JSFunction0>"),
+      JSArray_List_ComplexSelector: findType("JSArray<List<ComplexSelector>>"),
+      JSArray_List_ComplexSelectorComponent: findType("JSArray<List<ComplexSelectorComponent>>"),
+      JSArray_List_ComplexSelectorComponent_2: findType("JSArray<List<ComplexSelectorComponent0>>"),
+      JSArray_List_ComplexSelector_2: findType("JSArray<List<ComplexSelector0>>"),
+      JSArray_List_Extender: findType("JSArray<List<Extender>>"),
+      JSArray_List_Extender_2: findType("JSArray<List<Extender0>>"),
+      JSArray_List_Iterable_ComplexSelectorComponent: findType("JSArray<List<Iterable<ComplexSelectorComponent>>>"),
+      JSArray_List_Iterable_ComplexSelectorComponent_2: findType("JSArray<List<Iterable<ComplexSelectorComponent0>>>"),
+      JSArray_Map_String_AstNode: findType("JSArray<Map<String,AstNode>>"),
+      JSArray_Map_String_AstNode_2: findType("JSArray<Map<String,AstNode0>>"),
+      JSArray_Map_String_AsyncCallable: findType("JSArray<Map<String,AsyncCallable>>"),
+      JSArray_Map_String_AsyncCallable_2: findType("JSArray<Map<String,AsyncCallable0>>"),
+      JSArray_Map_String_Callable: findType("JSArray<Map<String,Callable0>>"),
+      JSArray_Map_String_Callable_2: findType("JSArray<Map<String,Callable>>"),
+      JSArray_Map_String_Value: findType("JSArray<Map<String,Value>>"),
+      JSArray_Map_String_Value_2: findType("JSArray<Map<String,Value0>>"),
+      JSArray_ModifiableCssImport: findType("JSArray<ModifiableCssImport>"),
+      JSArray_ModifiableCssImport_2: findType("JSArray<ModifiableCssImport0>"),
+      JSArray_ModifiableCssNode: findType("JSArray<ModifiableCssNode>"),
+      JSArray_ModifiableCssNode_2: findType("JSArray<ModifiableCssNode0>"),
+      JSArray_ModifiableCssParentNode: findType("JSArray<ModifiableCssParentNode>"),
+      JSArray_ModifiableCssParentNode_2: findType("JSArray<ModifiableCssParentNode0>"),
+      JSArray_Module_AsyncCallable: findType("JSArray<Module0<AsyncCallable>>"),
+      JSArray_Module_AsyncCallable_2: findType("JSArray<Module1<AsyncCallable0>>"),
+      JSArray_Module_Callable: findType("JSArray<Module0<Callable0>>"),
+      JSArray_Module_Callable_2: findType("JSArray<Module1<Callable>>"),
+      JSArray_Object: findType("JSArray<Object>"),
+      JSArray_PseudoSelector: findType("JSArray<PseudoSelector>"),
+      JSArray_PseudoSelector_2: findType("JSArray<PseudoSelector0>"),
+      JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value: findType("JSArray<+(ArgumentDeclaration,Value(List<Value>))>"),
+      JSArray_Record_2_ArgumentDeclaration_and_Value_Function_List_Value_2: findType("JSArray<+(ArgumentDeclaration0,Value0(List<Value0>))>"),
+      JSArray_Record_2_Expression_and_Expression: findType("JSArray<+(Expression,Expression)>"),
+      JSArray_Record_2_Expression_and_Expression_2: findType("JSArray<+(Expression0,Expression0)>"),
+      JSArray_Record_2_String_and_AstNode: findType("JSArray<+(String,AstNode)>"),
+      JSArray_Record_2_String_and_AstNode_2: findType("JSArray<+(String,AstNode0)>"),
+      JSArray_SassList: findType("JSArray<SassList>"),
+      JSArray_SassList_2: findType("JSArray<SassList0>"),
+      JSArray_SimpleSelector: findType("JSArray<SimpleSelector>"),
+      JSArray_SimpleSelector_2: findType("JSArray<SimpleSelector0>"),
+      JSArray_SourceLocation: findType("JSArray<SourceLocation>"),
+      JSArray_Statement: findType("JSArray<Statement>"),
+      JSArray_Statement_2: findType("JSArray<Statement0>"),
+      JSArray_String: findType("JSArray<String>"),
+      JSArray_StylesheetNode: findType("JSArray<StylesheetNode>"),
+      JSArray_TargetEntry: findType("JSArray<TargetEntry>"),
+      JSArray_TargetLineEntry: findType("JSArray<TargetLineEntry>"),
+      JSArray_Trace: findType("JSArray<Trace>"),
+      JSArray_UseRule: findType("JSArray<UseRule>"),
+      JSArray_UseRule_2: findType("JSArray<UseRule0>"),
+      JSArray_Value: findType("JSArray<Value>"),
+      JSArray_Value_2: findType("JSArray<Value0>"),
+      JSArray_WatchEvent: findType("JSArray<WatchEvent>"),
+      JSArray__Highlight: findType("JSArray<_Highlight>"),
+      JSArray__Line: findType("JSArray<_Line>"),
+      JSArray_dynamic: findType("JSArray<@>"),
+      JSArray_int: findType("JSArray<int>"),
+      JSArray_nullable_Record_3_int_and_String_and_nullable_String: findType("JSArray<+(int,String,String?)?>"),
+      JSArray_nullable_String: findType("JSArray<String?>"),
+      JSClass: findType("JSClass0"),
+      JSFunction: findType("JSFunction0"),
+      JSImporter: findType("JSImporter"),
+      JSImporterResult: findType("JSImporterResult"),
+      JSNull: findType("JSNull"),
+      JSUrl: findType("JSUrl0"),
+      JavaScriptFunction: findType("JavaScriptFunction"),
+      JavaScriptIndexingBehavior_dynamic: findType("JavaScriptIndexingBehavior<@>"),
+      JsIdentityLinkedHashMap_SimpleSelector_int: findType("JsIdentityLinkedHashMap<SimpleSelector,int>"),
+      JsIdentityLinkedHashMap_SimpleSelector_int_2: findType("JsIdentityLinkedHashMap<SimpleSelector0,int>"),
+      JsIdentityLinkedHashMap_of_SelectorList_and_Box_SelectorList: findType("JsIdentityLinkedHashMap<SelectorList,Box<SelectorList>>"),
+      JsIdentityLinkedHashMap_of_SelectorList_and_Box_SelectorList_2: findType("JsIdentityLinkedHashMap<SelectorList0,Box0<SelectorList0>>"),
+      JsLinkedHashMap_Symbol_dynamic: findType("JsLinkedHashMap<Symbol0,@>"),
+      JsSystemError: findType("JsSystemError"),
+      LimitedMapView_String_ConfiguredValue: findType("LimitedMapView<String,ConfiguredValue>"),
+      LimitedMapView_String_ConfiguredValue_2: findType("LimitedMapView0<String,ConfiguredValue0>"),
+      List_ComplexSelectorComponent: findType("List<ComplexSelectorComponent>"),
+      List_ComplexSelectorComponent_2: findType("List<ComplexSelectorComponent0>"),
+      List_CssComment: findType("List<CssComment>"),
+      List_CssComment_2: findType("List<CssComment0>"),
+      List_CssMediaQuery: findType("List<CssMediaQuery>"),
+      List_CssMediaQuery_2: findType("List<CssMediaQuery0>"),
+      List_CssValue_Combinator: findType("List<CssValue<Combinator>>"),
+      List_CssValue_Combinator_2: findType("List<CssValue0<Combinator0>>"),
+      List_Extension: findType("List<Extension>"),
+      List_ExtensionStore: findType("List<ExtensionStore>"),
+      List_ExtensionStore_2: findType("List<ExtensionStore0>"),
+      List_Extension_2: findType("List<Extension0>"),
+      List_List_ComplexSelectorComponent: findType("List<List<ComplexSelectorComponent>>"),
+      List_List_ComplexSelectorComponent_2: findType("List<List<ComplexSelectorComponent0>>"),
+      List_Module_AsyncCallable: findType("List<Module0<AsyncCallable>>"),
+      List_Module_AsyncCallable_2: findType("List<Module1<AsyncCallable0>>"),
+      List_Module_Callable: findType("List<Module0<Callable0>>"),
+      List_Module_Callable_2: findType("List<Module1<Callable>>"),
+      List_String: findType("List<String>"),
+      List_Value: findType("List<Value>"),
+      List_Value_2: findType("List<Value0>"),
+      List_WatchEvent: findType("List<WatchEvent>"),
+      List_dynamic: findType("List<@>"),
+      List_int: findType("List<int>"),
+      List_nullable_Object: findType("List<Object?>"),
+      MapKeySet_Module_AsyncCallable: findType("MapKeySet<Module0<AsyncCallable>>"),
+      MapKeySet_Module_AsyncCallable_2: findType("MapKeySet<Module1<AsyncCallable0>>"),
+      MapKeySet_Module_Callable: findType("MapKeySet<Module0<Callable0>>"),
+      MapKeySet_Module_Callable_2: findType("MapKeySet<Module1<Callable>>"),
+      MapKeySet_SimpleSelector: findType("MapKeySet<SimpleSelector>"),
+      MapKeySet_SimpleSelector_2: findType("MapKeySet<SimpleSelector0>"),
+      MapKeySet_String: findType("MapKeySet<String>"),
+      MapKeySet_nullable_Object: findType("MapKeySet<Object?>"),
+      Map_ComplexSelector_Extension: findType("Map<ComplexSelector,Extension>"),
+      Map_ComplexSelector_Extension_2: findType("Map<ComplexSelector0,Extension0>"),
+      Map_String_AstNode: findType("Map<String,AstNode>"),
+      Map_String_AstNode_2: findType("Map<String,AstNode0>"),
+      Map_String_AsyncCallable: findType("Map<String,AsyncCallable>"),
+      Map_String_AsyncCallable_2: findType("Map<String,AsyncCallable0>"),
+      Map_String_Callable: findType("Map<String,Callable0>"),
+      Map_String_Callable_2: findType("Map<String,Callable>"),
+      Map_String_Value: findType("Map<String,Value>"),
+      Map_String_Value_2: findType("Map<String,Value0>"),
+      Map_String_dynamic: findType("Map<String,@>"),
+      Map_dynamic_dynamic: findType("Map<@,@>"),
+      Map_of_nullable_Object_and_nullable_Object: findType("Map<Object?,Object?>"),
+      MappedIterable_String_Frame: findType("MappedIterable<String,Frame>"),
+      MappedListIterable_Frame_Frame: findType("MappedListIterable<Frame,Frame>"),
+      MappedListIterable_String_Object: findType("MappedListIterable<String,Object>"),
+      MappedListIterable_String_String: findType("MappedListIterable<String,String>"),
+      MappedListIterable_String_Trace: findType("MappedListIterable<String,Trace>"),
+      MappedListIterable_String_Value: findType("MappedListIterable<String,Value>"),
+      MappedListIterable_String_Value_2: findType("MappedListIterable<String,Value0>"),
+      MappedListIterable_String_dynamic: findType("MappedListIterable<String,@>"),
+      MixinRule: findType("MixinRule"),
+      MixinRule_2: findType("MixinRule0"),
+      ModifiableBox_SelectorList: findType("ModifiableBox<SelectorList>"),
+      ModifiableBox_SelectorList_2: findType("ModifiableBox0<SelectorList0>"),
+      ModifiableCssAtRule: findType("ModifiableCssAtRule"),
+      ModifiableCssAtRule_2: findType("ModifiableCssAtRule0"),
+      ModifiableCssKeyframeBlock: findType("ModifiableCssKeyframeBlock"),
+      ModifiableCssKeyframeBlock_2: findType("ModifiableCssKeyframeBlock0"),
+      ModifiableCssMediaRule: findType("ModifiableCssMediaRule"),
+      ModifiableCssMediaRule_2: findType("ModifiableCssMediaRule0"),
+      ModifiableCssNode: findType("ModifiableCssNode"),
+      ModifiableCssNode_2: findType("ModifiableCssNode0"),
+      ModifiableCssParentNode: findType("ModifiableCssParentNode"),
+      ModifiableCssParentNode_2: findType("ModifiableCssParentNode0"),
+      ModifiableCssStyleRule: findType("ModifiableCssStyleRule"),
+      ModifiableCssStyleRule_2: findType("ModifiableCssStyleRule0"),
+      ModifiableCssSupportsRule: findType("ModifiableCssSupportsRule"),
+      ModifiableCssSupportsRule_2: findType("ModifiableCssSupportsRule0"),
+      Module_AsyncCallable: findType("Module0<AsyncCallable>"),
+      Module_AsyncCallable_2: findType("Module1<AsyncCallable0>"),
+      Module_Callable: findType("Module0<Callable0>"),
+      Module_Callable_2: findType("Module1<Callable>"),
+      MultiSourceSpanFormatException: findType("MultiSourceSpanFormatException"),
+      NativeTypedArrayOfDouble: findType("NativeTypedArrayOfDouble"),
+      NativeTypedArrayOfInt: findType("NativeTypedArrayOfInt"),
+      NativeUint8List: findType("NativeUint8List"),
+      Never: findType("0&"),
+      NodeCompileResult: findType("NodeCompileResult"),
+      NodeImporterResult: findType("NodeImporterResult0"),
+      Null: findType("Null"),
+      Object: findType("Object"),
+      Option: findType("Option"),
+      PathMap_ChangeType: findType("PathMap<ChangeType>"),
+      PathMap_Stream_WatchEvent: findType("PathMap<Stream<WatchEvent>>"),
+      PathMap_String: findType("PathMap<String>"),
+      PathMap_nullable_String: findType("PathMap<String?>"),
+      Promise: findType("Promise"),
+      PseudoSelector: findType("PseudoSelector"),
+      PseudoSelector_2: findType("PseudoSelector0"),
+      RangeError: findType("RangeError"),
+      Record: findType("Record"),
+      Record_0: findType("+()"),
+      Record_1_nullable_Object: findType("+(Object?)"),
+      Record_2_Expression_and_Expression: findType("+(Expression,Expression)"),
+      Record_2_Expression_and_Expression_2: findType("+(Expression0,Expression0)"),
+      Record_2_List_Expression_and_Map_String_Expression: findType("+(List<Expression>,Map<String,Expression>)"),
+      Record_2_List_Expression_and_Map_String_Expression_2: findType("+(List<Expression0>,Map<String,Expression0>)"),
+      Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet: findType("+loadedUrls,stylesheet(Set<Uri>,CssStylesheet)"),
+      Record_2_Set_Uri_loadedUrls_and_CssStylesheet_stylesheet_2: findType("+loadedUrls,stylesheet(Set<Uri>,CssStylesheet0)"),
+      Record_2_String_and_InterpolationMap: findType("+(String,InterpolationMap)"),
+      Record_2_String_and_InterpolationMap_2: findType("+(String,InterpolationMap0)"),
+      Record_2_String_and_SourceSpan: findType("+(String,SourceSpan)"),
+      Record_2_String_and_nullable_InterpolationMap: findType("+(String,InterpolationMap?)"),
+      Record_2_String_and_nullable_InterpolationMap_2: findType("+(String,InterpolationMap0?)"),
+      Record_2_Uri_and_bool_forImport: findType("+forImport(Uri,bool)"),
+      Record_2_nullable_Object_and_nullable_Object: findType("+(Object?,Object?)"),
+      Record_2_nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_and_bool: findType("+(+originalUrl(AsyncImporter,Uri,Uri)?,bool)"),
+      Record_2_nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_and_bool_2: findType("+(+originalUrl(AsyncImporter0,Uri,Uri)?,bool)"),
+      Record_2_nullable_String_and_nullable_String: findType("+(String?,String?)"),
+      Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl: findType("+originalUrl(AsyncImporter,Uri,Uri)"),
+      Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2: findType("+originalUrl(AsyncImporter0,Uri,Uri)"),
+      Record_3_AsyncImporter_and_Uri_and_bool_forImport: findType("+forImport(AsyncImporter,Uri,bool)"),
+      Record_3_AsyncImporter_and_Uri_and_bool_forImport_2: findType("+forImport(AsyncImporter0,Uri,bool)"),
+      Record_3_Importer_and_Uri_and_Uri_originalUrl: findType("+originalUrl(Importer,Uri,Uri)"),
+      Record_3_Importer_and_Uri_and_Uri_originalUrl_2: findType("+originalUrl(Importer0,Uri,Uri)"),
+      Record_3_Importer_and_Uri_and_bool_forImport: findType("+forImport(Importer,Uri,bool)"),
+      Record_3_Importer_and_Uri_and_bool_forImport_2: findType("+forImport(Importer0,Uri,bool)"),
+      Record_3_Stylesheet_and_nullable_AsyncImporter_importer_and_bool_isDependency: findType("+importer,isDependency(Stylesheet,AsyncImporter?,bool)"),
+      Record_3_Stylesheet_and_nullable_AsyncImporter_importer_and_bool_isDependency_2: findType("+importer,isDependency(Stylesheet0,AsyncImporter0?,bool)"),
+      Record_3_nullable_Object_and_nullable_Object_and_nullable_Object_originalUrl: findType("+originalUrl(Object?,Object?,Object?)"),
+      Record_5_Map_String_Value_named_and_Map_String_AstNode_namedNodes_and_List_Value_positional_and_List_AstNode_positionalNodes_and_ListSeparator_separator: findType("+named,namedNodes,positional,positionalNodes,separator(Map<String,Value>,Map<String,AstNode>,List<Value>,List<AstNode>,ListSeparator)"),
+      Record_5_Map_String_Value_named_and_Map_String_AstNode_namedNodes_and_List_Value_positional_and_List_AstNode_positionalNodes_and_ListSeparator_separator_2: findType("+named,namedNodes,positional,positionalNodes,separator(Map<String,Value0>,Map<String,AstNode0>,List<Value0>,List<AstNode0>,ListSeparator0)"),
+      RegExpMatch: findType("RegExpMatch"),
+      RenderContextOptions: findType("RenderContextOptions0"),
+      RenderResult: findType("RenderResult"),
+      Result_String: findType("Result<String>"),
+      ReversedListIterable_Frame: findType("ReversedListIterable<Frame>"),
+      Runes: findType("Runes"),
+      SassArgumentList: findType("SassArgumentList"),
+      SassArgumentList_2: findType("SassArgumentList0"),
+      SassBoolean: findType("SassBoolean"),
+      SassBoolean_2: findType("SassBoolean0"),
+      SassColor: findType("SassColor"),
+      SassColor_2: findType("SassColor0"),
+      SassFormatException: findType("SassFormatException"),
+      SassFormatException_2: findType("SassFormatException0"),
+      SassList: findType("SassList"),
+      SassList_2: findType("SassList0"),
+      SassMap: findType("SassMap"),
+      SassMap_2: findType("SassMap0"),
+      SassNumber: findType("SassNumber"),
+      SassNumber_2: findType("SassNumber0"),
+      SassRuntimeException: findType("SassRuntimeException"),
+      SassRuntimeException_2: findType("SassRuntimeException0"),
+      SassString: findType("SassString"),
+      SassString_2: findType("SassString0"),
+      SelectorList: findType("SelectorList"),
+      SelectorList_2: findType("SelectorList0"),
+      Set_ModifiableBox_SelectorList: findType("Set<ModifiableBox<SelectorList>>"),
+      Set_ModifiableBox_SelectorList_2: findType("Set<ModifiableBox0<SelectorList0>>"),
+      Set_Uri: findType("Set<Uri>"),
+      SimpleSelector: findType("SimpleSelector"),
+      SimpleSelector_2: findType("SimpleSelector0"),
+      SourceFile: findType("SourceFile"),
+      SourceLocation: findType("SourceLocation"),
+      SourceSpan: findType("SourceSpan"),
+      SourceSpanFormatException: findType("SourceSpanFormatException"),
+      SourceSpanWithContext: findType("SourceSpanWithContext"),
+      StackTrace: findType("StackTrace"),
+      Statement: findType("Statement"),
+      Statement_2: findType("Statement0"),
+      StaticImport: findType("StaticImport"),
+      StaticImport_2: findType("StaticImport0"),
+      StreamCompleter_WatchEvent: findType("StreamCompleter<WatchEvent>"),
+      StreamGroup_WatchEvent: findType("StreamGroup<WatchEvent>"),
+      StreamQueue_String: findType("StreamQueue<String>"),
+      Stream_WatchEvent: findType("Stream<WatchEvent>"),
+      String: findType("String"),
+      StringExpression: findType("StringExpression"),
+      StylesheetNode: findType("StylesheetNode"),
+      Timer: findType("Timer"),
+      Trace: findType("Trace"),
+      TrustedGetRuntimeType: findType("TrustedGetRuntimeType"),
+      TypeError: findType("TypeError"),
+      TypeSelector: findType("TypeSelector"),
+      TypeSelector_2: findType("TypeSelector0"),
+      Uint16List: findType("Uint16List"),
+      Uint32List: findType("Uint32List"),
+      Uint8ClampedList: findType("Uint8ClampedList"),
+      Uint8List: findType("Uint8List"),
+      UnionSet_Uri: findType("UnionSet<Uri>"),
+      UnknownJavaScriptObject: findType("UnknownJavaScriptObject"),
+      UnmodifiableListView_CssComment: findType("UnmodifiableListView<CssComment>"),
+      UnmodifiableListView_CssComment_2: findType("UnmodifiableListView<CssComment0>"),
+      UnmodifiableListView_CssNode: findType("UnmodifiableListView<CssNode>"),
+      UnmodifiableListView_CssNode_2: findType("UnmodifiableListView<CssNode0>"),
+      UnmodifiableListView_ForwardRule: findType("UnmodifiableListView<ForwardRule>"),
+      UnmodifiableListView_ForwardRule_2: findType("UnmodifiableListView<ForwardRule0>"),
+      UnmodifiableListView_ModifiableCssNode: findType("UnmodifiableListView<ModifiableCssNode>"),
+      UnmodifiableListView_ModifiableCssNode_2: findType("UnmodifiableListView<ModifiableCssNode0>"),
+      UnmodifiableListView_String: findType("UnmodifiableListView<String>"),
+      UnmodifiableListView_UseRule: findType("UnmodifiableListView<UseRule>"),
+      UnmodifiableListView_UseRule_2: findType("UnmodifiableListView<UseRule0>"),
+      UnmodifiableMapView_String_ArgParser: findType("UnmodifiableMapView<String,ArgParser>"),
+      UnmodifiableMapView_String_ConfiguredValue: findType("UnmodifiableMapView<String,ConfiguredValue>"),
+      UnmodifiableMapView_String_ConfiguredValue_2: findType("UnmodifiableMapView<String,ConfiguredValue0>"),
+      UnmodifiableMapView_String_Option: findType("UnmodifiableMapView<String,Option>"),
+      UnmodifiableMapView_String_Value: findType("UnmodifiableMapView<String,Value>"),
+      UnmodifiableMapView_String_Value_2: findType("UnmodifiableMapView<String,Value0>"),
+      UnmodifiableMapView_of_Uri_and_nullable_StylesheetNode: findType("UnmodifiableMapView<Uri,StylesheetNode?>"),
+      UnmodifiableMapView_of_nullable_String_and_String: findType("UnmodifiableMapView<String?,String>"),
+      UnmodifiableMapView_of_nullable_String_and_nullable_String: findType("UnmodifiableMapView<String?,String?>"),
+      UnmodifiableSetView_String: findType("UnmodifiableSetView0<String>"),
+      UnmodifiableSetView_StylesheetNode: findType("UnmodifiableSetView0<StylesheetNode>"),
+      UnmodifiableSetView_Uri: findType("UnmodifiableSetView0<Uri>"),
+      UnprefixedMapView_ConfiguredValue: findType("UnprefixedMapView<ConfiguredValue>"),
+      UnprefixedMapView_ConfiguredValue_2: findType("UnprefixedMapView0<ConfiguredValue0>"),
+      Uri: findType("Uri"),
+      UseRule: findType("UseRule"),
+      UserDefinedCallable_AsyncEnvironment: findType("UserDefinedCallable<AsyncEnvironment>"),
+      UserDefinedCallable_AsyncEnvironment_2: findType("UserDefinedCallable0<AsyncEnvironment0>"),
+      UserDefinedCallable_Environment: findType("UserDefinedCallable<Environment>"),
+      UserDefinedCallable_Environment_2: findType("UserDefinedCallable0<Environment0>"),
+      Value: findType("Value"),
+      Value_2: findType("Value0"),
+      Value_Function_List_Value: findType("Value(List<Value>)"),
+      Value_Function_List_Value_2: findType("Value0(List<Value0>)"),
+      VariableDeclaration: findType("VariableDeclaration"),
+      VariableDeclaration_2: findType("VariableDeclaration0"),
+      VersionRange: findType("VersionRange"),
+      WatchEvent: findType("WatchEvent"),
+      WhereIterable_List_Iterable_ComplexSelectorComponent: findType("WhereIterable<List<Iterable<ComplexSelectorComponent>>>"),
+      WhereIterable_List_Iterable_ComplexSelectorComponent_2: findType("WhereIterable<List<Iterable<ComplexSelectorComponent0>>>"),
+      WhereIterable_String: findType("WhereIterable<String>"),
+      WhereTypeIterable_PseudoSelector: findType("WhereTypeIterable<PseudoSelector>"),
+      WhereTypeIterable_PseudoSelector_2: findType("WhereTypeIterable<PseudoSelector0>"),
+      WhereTypeIterable_String: findType("WhereTypeIterable<String>"),
+      _AsyncCompleter_List_void: findType("_AsyncCompleter<List<~>>"),
+      _AsyncCompleter_Object: findType("_AsyncCompleter<Object>"),
+      _AsyncCompleter_Stream_WatchEvent: findType("_AsyncCompleter<Stream<WatchEvent>>"),
+      _AsyncCompleter_String: findType("_AsyncCompleter<String>"),
+      _AsyncCompleter_nullable_Object: findType("_AsyncCompleter<Object?>"),
+      _CompleterStream_WatchEvent: findType("_CompleterStream<WatchEvent>"),
+      _EventRequest_dynamic: findType("_EventRequest<@>"),
+      _Future_List_void: findType("_Future<List<~>>"),
+      _Future_Object: findType("_Future<Object>"),
+      _Future_Stream_WatchEvent: findType("_Future<Stream<WatchEvent>>"),
+      _Future_String: findType("_Future<String>"),
+      _Future_Value: findType("_Future<Value>"),
+      _Future_Value_2: findType("_Future<Value0>"),
+      _Future_bool: findType("_Future<bool>"),
+      _Future_dynamic: findType("_Future<@>"),
+      _Future_int: findType("_Future<int>"),
+      _Future_nullable_Object: findType("_Future<Object?>"),
+      _Future_void: findType("_Future<~>"),
+      _Highlight: findType("_Highlight"),
+      _IdentityHashMap_of_nullable_Object_and_nullable_Object: findType("_IdentityHashMap<Object?,Object?>"),
+      _LinkedIdentityHashSet_ComplexSelector: findType("_LinkedIdentityHashSet<ComplexSelector>"),
+      _LinkedIdentityHashSet_ComplexSelector_2: findType("_LinkedIdentityHashSet<ComplexSelector0>"),
+      _LinkedIdentityHashSet_Extension: findType("_LinkedIdentityHashSet<Extension>"),
+      _LinkedIdentityHashSet_Extension_2: findType("_LinkedIdentityHashSet<Extension0>"),
+      _MapEntry: findType("_MapEntry"),
+      _NodeException: findType("_NodeException"),
+      _PlatformUri: findType("_PlatformUri"),
+      _SyncStarIterable_Deprecation: findType("_SyncStarIterable<Deprecation0>"),
+      _SyncStarIterable_Extension: findType("_SyncStarIterable<Extension>"),
+      _SyncStarIterable_Extension_2: findType("_SyncStarIterable<Extension0>"),
+      _SyncStarIterable_SimpleSelector: findType("_SyncStarIterable<SimpleSelector>"),
+      _SyncStarIterable_SimpleSelector_2: findType("_SyncStarIterable<SimpleSelector0>"),
+      _SyncStarIterable_String: findType("_SyncStarIterable<String>"),
+      bool: findType("bool"),
+      double: findType("double"),
+      dynamic: findType("@"),
+      dynamic_Function: findType("@()"),
+      dynamic_Function_Object: findType("@(Object)"),
+      dynamic_Function_Object_StackTrace: findType("@(Object,StackTrace)"),
+      int: findType("int"),
+      legacy_Never: findType("0&*"),
+      legacy_Object: findType("Object*"),
+      nullable_AstNode: findType("AstNode?"),
+      nullable_AstNode_2: findType("AstNode0?"),
+      nullable_CanonicalizeContext: findType("CanonicalizeContext?"),
+      nullable_CanonicalizeContext_2: findType("CanonicalizeContext0?"),
+      nullable_CssValue_String: findType("CssValue<String>?"),
+      nullable_CssValue_String_2: findType("CssValue0<String>?"),
+      nullable_Future_Null: findType("Future<Null>?"),
+      nullable_Future_void: findType("Future<~>?"),
+      nullable_ImporterResult: findType("ImporterResult?"),
+      nullable_ImporterResult_2: findType("ImporterResult0?"),
+      nullable_Object: findType("Object?"),
+      nullable_Record_2_String_and_String: findType("+(String,String)?"),
+      nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl: findType("+originalUrl(AsyncImporter,Uri,Uri)?"),
+      nullable_Record_3_AsyncImporter_and_Uri_and_Uri_originalUrl_2: findType("+originalUrl(AsyncImporter0,Uri,Uri)?"),
+      nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl: findType("+originalUrl(Importer,Uri,Uri)?"),
+      nullable_Record_3_Importer_and_Uri_and_Uri_originalUrl_2: findType("+originalUrl(Importer0,Uri,Uri)?"),
+      nullable_Record_3_Stylesheet_and_nullable_AsyncImporter_importer_and_bool_isDependency: findType("+importer,isDependency(Stylesheet0,AsyncImporter0?,bool)?"),
+      nullable_Record_3_int_and_String_and_nullable_String: findType("+(int,String,String?)?"),
+      nullable_SourceFile: findType("SourceFile?"),
+      nullable_SourceSpan: findType("SourceSpan?"),
+      nullable_StreamSubscription_WatchEvent: findType("StreamSubscription<WatchEvent>?"),
+      nullable_String: findType("String?"),
+      nullable_Stylesheet: findType("Stylesheet?"),
+      nullable_StylesheetNode: findType("StylesheetNode?"),
+      nullable_Stylesheet_2: findType("Stylesheet0?"),
+      nullable_Uri: findType("Uri?"),
+      nullable_Value: findType("Value?"),
+      nullable_Value_2: findType("Value0?"),
+      nullable__ConstructorOptions: findType("_ConstructorOptions?"),
+      nullable__ConstructorOptions_2: findType("_ConstructorOptions0?"),
+      nullable__ConstructorOptions_3: findType("_ConstructorOptions1?"),
+      nullable__Highlight: findType("_Highlight?"),
+      num: findType("num"),
+      void: findType("~"),
+      void_Function_Object: findType("~(Object)"),
+      void_Function_Object_StackTrace: findType("~(Object,StackTrace)")
+    };
+  })();
+  (function constants() {
+    var makeConstList = hunkHelpers.makeConstList;
+    B.Interceptor_methods = J.Interceptor.prototype;
+    B.JSArray_methods = J.JSArray.prototype;
+    B.JSInt_methods = J.JSInt.prototype;
+    B.JSNull_methods = J.JSNull.prototype;
+    B.JSNumber_methods = J.JSNumber.prototype;
+    B.JSString_methods = J.JSString.prototype;
+    B.JavaScriptFunction_methods = J.JavaScriptFunction.prototype;
+    B.JavaScriptObject_methods = J.JavaScriptObject.prototype;
+    B.NativeUint32List_methods = A.NativeUint32List.prototype;
+    B.NativeUint8List_methods = A.NativeUint8List.prototype;
+    B.PlainJavaScriptObject_methods = J.PlainJavaScriptObject.prototype;
+    B.UnknownJavaScriptObject_methods = J.UnknownJavaScriptObject.prototype;
+    B.AsciiEncoder_127 = new A.AsciiEncoder(127);
+    B.C_EmptyUnmodifiableSet1 = new A.EmptyUnmodifiableSet(A.findType("EmptyUnmodifiableSet<String>"));
+    B.AtRootQuery_n2q = new A.AtRootQuery(false, B.C_EmptyUnmodifiableSet1, false, true);
+    B.AtRootQuery_n2q0 = new A.AtRootQuery0(false, B.C_EmptyUnmodifiableSet1, false, true);
+    B.AttributeOperator_4QF = new A.AttributeOperator("=", "equal");
+    B.AttributeOperator_4QF0 = new A.AttributeOperator0("=", "equal");
+    B.AttributeOperator_61T = new A.AttributeOperator("*=", "substring");
+    B.AttributeOperator_61T0 = new A.AttributeOperator0("*=", "substring");
+    B.AttributeOperator_cMb = new A.AttributeOperator("^=", "prefix");
+    B.AttributeOperator_cMb0 = new A.AttributeOperator0("^=", "prefix");
+    B.AttributeOperator_jqB = new A.AttributeOperator("|=", "dash");
+    B.AttributeOperator_jqB0 = new A.AttributeOperator0("|=", "dash");
+    B.AttributeOperator_qhE = new A.AttributeOperator("$=", "suffix");
+    B.AttributeOperator_qhE0 = new A.AttributeOperator0("$=", "suffix");
+    B.AttributeOperator_yT8 = new A.AttributeOperator("~=", "include");
+    B.AttributeOperator_yT80 = new A.AttributeOperator0("~=", "include");
+    B.BinaryOperator_2No = new A.BinaryOperator("times", "*", 6, true, "times");
+    B.BinaryOperator_2No0 = new A.BinaryOperator0("times", "*", 6, true, "times");
+    B.BinaryOperator_KNx = new A.BinaryOperator("modulo", "%", 6, false, "modulo");
+    B.BinaryOperator_KNx0 = new A.BinaryOperator0("modulo", "%", 6, false, "modulo");
+    B.BinaryOperator_SPQ = new A.BinaryOperator("less than or equals", "<=", 4, false, "lessThanOrEquals");
+    B.BinaryOperator_SPQ0 = new A.BinaryOperator0("less than or equals", "<=", 4, false, "lessThanOrEquals");
+    B.BinaryOperator_SjO = new A.BinaryOperator("minus", "-", 5, false, "minus");
+    B.BinaryOperator_SjO0 = new A.BinaryOperator0("minus", "-", 5, false, "minus");
+    B.BinaryOperator_U77 = new A.BinaryOperator("divided by", "/", 6, false, "dividedBy");
+    B.BinaryOperator_U770 = new A.BinaryOperator0("divided by", "/", 6, false, "dividedBy");
+    B.BinaryOperator_bEa = new A.BinaryOperator("greater than", ">", 4, false, "greaterThan");
+    B.BinaryOperator_bEa0 = new A.BinaryOperator0("greater than", ">", 4, false, "greaterThan");
+    B.BinaryOperator_eDt = new A.BinaryOperator("and", "and", 2, true, "and");
+    B.BinaryOperator_eDt0 = new A.BinaryOperator0("and", "and", 2, true, "and");
+    B.BinaryOperator_g8k = new A.BinaryOperator("equals", "==", 3, false, "equals");
+    B.BinaryOperator_g8k0 = new A.BinaryOperator0("equals", "==", 3, false, "equals");
+    B.BinaryOperator_icU = new A.BinaryOperator("not equals", "!=", 3, false, "notEquals");
+    B.BinaryOperator_icU0 = new A.BinaryOperator0("not equals", "!=", 3, false, "notEquals");
+    B.BinaryOperator_miq = new A.BinaryOperator("less than", "<", 4, false, "lessThan");
+    B.BinaryOperator_miq0 = new A.BinaryOperator0("less than", "<", 4, false, "lessThan");
+    B.BinaryOperator_oEm = new A.BinaryOperator("greater than or equals", ">=", 4, false, "greaterThanOrEquals");
+    B.BinaryOperator_oEm0 = new A.BinaryOperator0("greater than or equals", ">=", 4, false, "greaterThanOrEquals");
+    B.BinaryOperator_qNM = new A.BinaryOperator("or", "or", 1, true, "or");
+    B.BinaryOperator_qNM0 = new A.BinaryOperator0("or", "or", 1, true, "or");
+    B.BinaryOperator_u15 = new A.BinaryOperator("plus", "+", 5, true, "plus");
+    B.BinaryOperator_u150 = new A.BinaryOperator0("plus", "+", 5, true, "plus");
+    B.BinaryOperator_wdM = new A.BinaryOperator("single equals", "=", 0, false, "singleEquals");
+    B.BinaryOperator_wdM0 = new A.BinaryOperator0("single equals", "=", 0, false, "singleEquals");
+    B.CONSTANT = new A.Instantiation1(A.math0__max$closure(), A.findType("Instantiation1<int>"));
+    B.C_AsciiCodec = new A.AsciiCodec();
+    B.C_AsciiGlyphSet = new A.AsciiGlyphSet();
+    B.C_Base64Encoder = new A.Base64Encoder();
+    B.C_Base64Codec = new A.Base64Codec();
+    B.C_DefaultEquality = new A.DefaultEquality();
+    B.C_EmptyExtensionStore = new A.EmptyExtensionStore();
+    B.C_EmptyExtensionStore0 = new A.EmptyExtensionStore0();
+    B.C_EmptyIterator = new A.EmptyIterator();
+    B.C_EmptyUnmodifiableSet = new A.EmptyUnmodifiableSet(A.findType("EmptyUnmodifiableSet<SimpleSelector>"));
+    B.C_EmptyUnmodifiableSet0 = new A.EmptyUnmodifiableSet(A.findType("EmptyUnmodifiableSet<SimpleSelector0>"));
+    B.C_IterableEquality = new A.IterableEquality();
+    B.C_JS_CONST = function getTagFallback(o) {
+  var s = Object.prototype.toString.call(o);
+  return s.substring(8, s.length - 1);
+};
+    B.C_JS_CONST0 = function() {
+  var toStringFunction = Object.prototype.toString;
+  function getTag(o) {
+    var s = toStringFunction.call(o);
+    return s.substring(8, s.length - 1);
+  }
+  function getUnknownTag(object, tag) {
+    if (/^HTML[A-Z].*Element$/.test(tag)) {
+      var name = toStringFunction.call(object);
+      if (name == "[object Object]") return null;
+      return "HTMLElement";
+    }
+  }
+  function getUnknownTagGenericBrowser(object, tag) {
+    if (object instanceof HTMLElement) return "HTMLElement";
+    return getUnknownTag(object, tag);
+  }
+  function prototypeForTag(tag) {
+    if (typeof window == "undefined") return null;
+    if (typeof window[tag] == "undefined") return null;
+    var constructor = window[tag];
+    if (typeof constructor != "function") return null;
+    return constructor.prototype;
+  }
+  function discriminator(tag) { return null; }
+  var isBrowser = typeof HTMLElement == "function";
+  return {
+    getTag: getTag,
+    getUnknownTag: isBrowser ? getUnknownTagGenericBrowser : getUnknownTag,
+    prototypeForTag: prototypeForTag,
+    discriminator: discriminator };
+};
+    B.C_JS_CONST6 = function(getTagFallback) {
+  return function(hooks) {
+    if (typeof navigator != "object") return hooks;
+    var userAgent = navigator.userAgent;
+    if (typeof userAgent != "string") return hooks;
+    if (userAgent.indexOf("DumpRenderTree") >= 0) return hooks;
+    if (userAgent.indexOf("Chrome") >= 0) {
+      function confirm(p) {
+        return typeof window == "object" && window[p] && window[p].name == p;
+      }
+      if (confirm("Window") && confirm("HTMLElement")) return hooks;
+    }
+    hooks.getTag = getTagFallback;
+  };
+};
+    B.C_JS_CONST1 = function(hooks) {
+  if (typeof dartExperimentalFixupGetTag != "function") return hooks;
+  hooks.getTag = dartExperimentalFixupGetTag(hooks.getTag);
+};
+    B.C_JS_CONST5 = function(hooks) {
+  if (typeof navigator != "object") return hooks;
+  var userAgent = navigator.userAgent;
+  if (typeof userAgent != "string") return hooks;
+  if (userAgent.indexOf("Firefox") == -1) return hooks;
+  var getTag = hooks.getTag;
+  var quickMap = {
+    "BeforeUnloadEvent": "Event",
+    "DataTransfer": "Clipboard",
+    "GeoGeolocation": "Geolocation",
+    "Location": "!Location",
+    "WorkerMessageEvent": "MessageEvent",
+    "XMLDocument": "!Document"};
+  function getTagFirefox(o) {
+    var tag = getTag(o);
+    return quickMap[tag] || tag;
+  }
+  hooks.getTag = getTagFirefox;
+};
+    B.C_JS_CONST4 = function(hooks) {
+  if (typeof navigator != "object") return hooks;
+  var userAgent = navigator.userAgent;
+  if (typeof userAgent != "string") return hooks;
+  if (userAgent.indexOf("Trident/") == -1) return hooks;
+  var getTag = hooks.getTag;
+  var quickMap = {
+    "BeforeUnloadEvent": "Event",
+    "DataTransfer": "Clipboard",
+    "HTMLDDElement": "HTMLElement",
+    "HTMLDTElement": "HTMLElement",
+    "HTMLPhraseElement": "HTMLElement",
+    "Position": "Geoposition"
+  };
+  function getTagIE(o) {
+    var tag = getTag(o);
+    var newTag = quickMap[tag];
+    if (newTag) return newTag;
+    if (tag == "Object") {
+      if (window.DataView && (o instanceof window.DataView)) return "DataView";
+    }
+    return tag;
+  }
+  function prototypeForTagIE(tag) {
+    var constructor = window[tag];
+    if (constructor == null) return null;
+    return constructor.prototype;
+  }
+  hooks.getTag = getTagIE;
+  hooks.prototypeForTag = prototypeForTagIE;
+};
+    B.C_JS_CONST2 = function(hooks) {
+  var getTag = hooks.getTag;
+  var prototypeForTag = hooks.prototypeForTag;
+  function getTagFixed(o) {
+    var tag = getTag(o);
+    if (tag == "Document") {
+      if (!!o.xmlVersion) return "!Document";
+      return "!HTMLDocument";
+    }
+    return tag;
+  }
+  function prototypeForTagFixed(tag) {
+    if (tag == "Document") return null;
+    return prototypeForTag(tag);
+  }
+  hooks.getTag = getTagFixed;
+  hooks.prototypeForTag = prototypeForTagFixed;
+};
+    B.C_JS_CONST3 = function(hooks) { return hooks; }
+;
+    B.C_JsonCodec = new A.JsonCodec();
+    B.C_ListEquality0 = new A.ListEquality();
+    B.C_ListEquality = new A.ListEquality();
+    B.C_MapEquality = new A.MapEquality(A.findType("MapEquality<Object,Object>"));
+    B.C_OutOfMemoryError = new A.OutOfMemoryError();
+    B.C_SentinelValue = new A.SentinelValue();
+    B.C_UnicodeGlyphSet = new A.UnicodeGlyphSet();
+    B.C_Utf8Codec = new A.Utf8Codec();
+    B.C_Utf8Encoder = new A.Utf8Encoder();
+    B.C__DelayedDone = new A._DelayedDone();
+    B.C__HasContentVisitor = new A._HasContentVisitor();
+    B.C__HasContentVisitor0 = new A._HasContentVisitor0();
+    B.C__IsUselessVisitor = new A._IsUselessVisitor();
+    B.C__IsUselessVisitor0 = new A._IsUselessVisitor0();
+    B.C__JSRandom = new A._JSRandom();
+    B.C__MakeExpressionCalculationSafe = new A._MakeExpressionCalculationSafe();
+    B.C__MakeExpressionCalculationSafe0 = new A._MakeExpressionCalculationSafe0();
+    B.C__ParentSelectorVisitor = new A._ParentSelectorVisitor();
+    B.C__ParentSelectorVisitor0 = new A._ParentSelectorVisitor0();
+    B.C__Required = new A._Required();
+    B.C__RootZone = new A._RootZone();
+    B.C__SassNull = new A._SassNull();
+    B.C__SassNull0 = new A._SassNull0();
+    B.CalculationOperator_171 = new A.CalculationOperator("times", "*", 2, "times");
+    B.CalculationOperator_1710 = new A.CalculationOperator0("times", "*", 2, "times");
+    B.CalculationOperator_CxF = new A.CalculationOperator("minus", "-", 1, "minus");
+    B.CalculationOperator_CxF0 = new A.CalculationOperator0("minus", "-", 1, "minus");
+    B.CalculationOperator_Qf1 = new A.CalculationOperator("divided by", "/", 2, "dividedBy");
+    B.CalculationOperator_Qf10 = new A.CalculationOperator0("divided by", "/", 2, "dividedBy");
+    B.CalculationOperator_g2q = new A.CalculationOperator("plus", "+", 1, "plus");
+    B.CalculationOperator_g2q0 = new A.CalculationOperator0("plus", "+", 1, "plus");
+    B.ChangeType_add = new A.ChangeType("add");
+    B.ChangeType_modify = new A.ChangeType("modify");
+    B.ChangeType_remove = new A.ChangeType("remove");
+    B.Combinator_8I8 = new A.Combinator(">", "child");
+    B.Combinator_8I80 = new A.Combinator0(">", "child");
+    B.Combinator_gRV = new A.Combinator("+", "nextSibling");
+    B.Combinator_gRV0 = new A.Combinator0("+", "nextSibling");
+    B.Combinator_y18 = new A.Combinator("~", "followingSibling");
+    B.Combinator_y180 = new A.Combinator0("~", "followingSibling");
+    B.Object_empty = {};
+    B.Map_empty17 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,ConfiguredValue>"));
+    B.Configuration_Map_empty_null = new A.Configuration(B.Map_empty17, null);
+    B.Map_empty18 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,ConfiguredValue0>"));
+    B.Configuration_Map_empty_null0 = new A.Configuration0(B.Map_empty18, null);
+    B.Deprecation_2Vk = new A.Deprecation("strict-unary", "1.55.0", false, "strictUnary");
+    B.Deprecation_2jN = new A.Deprecation("function-units", "1.56.0", false, "functionUnits");
+    B.Deprecation_2nU = new A.Deprecation("new-global", "1.17.2", false, "newGlobal");
+    B.Deprecation_5pG = new A.Deprecation0("bogus-combinators", "1.54.0", "Leading, trailing, and repeated combinators.", false, "bogusCombinators");
+    B.Deprecation_Agq = new A.Deprecation0("calc-interp", null, null, false, "calcInterp");
+    B.Deprecation_B4v = new A.Deprecation("fs-importer-cwd", "1.73.0", false, "fsImporterCwd");
+    B.Deprecation_E8a = new A.Deprecation0("slash-div", "1.33.0", "/ operator for division.", false, "slashDiv");
+    B.Deprecation_EJz = new A.Deprecation("elseif", "1.3.2", false, "elseif");
+    B.Deprecation_EfO = new A.Deprecation0("color-module-compat", "1.23.0", "Using color module functions in place of plain CSS functions.", false, "colorModuleCompat");
+    B.Deprecation_GFc = new A.Deprecation("abs-percent", "1.65.0", false, "absPercent");
+    B.Deprecation_HJ0 = new A.Deprecation("css-function-mixin", "1.76.0", false, "cssFunctionMixin");
+    B.Deprecation_IMm = new A.Deprecation("relative-canonical", "1.14.2", false, "relativeCanonical");
+    B.Deprecation_Iit = new A.Deprecation0("moz-document", "1.7.2", "@-moz-document.", false, "mozDocument");
+    B.Deprecation_JeE = new A.Deprecation("user-authored", null, false, "userAuthored");
+    B.Deprecation_MMc = new A.Deprecation0("call-string", "0.0.0", "Passing a string directly to meta.call().", false, "callString");
+    B.Deprecation_Ssf = new A.Deprecation0("relative-canonical", "1.14.2", "Imports using relative canonical URLs.", false, "relativeCanonical");
+    B.Deprecation_W6Z = new A.Deprecation0("new-global", "1.17.2", "Declaring new variables with !global.", false, "newGlobal");
+    B.Deprecation_gkc = new A.Deprecation("call-string", "0.0.0", false, "callString");
+    B.Deprecation_iDZ = new A.Deprecation("color-module-compat", "1.23.0", false, "colorModuleCompat");
+    B.Deprecation_iXE = new A.Deprecation0("duplicate-var-flags", "1.62.0", "Using !default or !global multiple times for one variable.", false, "duplicateVarFlags");
+    B.Deprecation_ido = new A.Deprecation("bogus-combinators", "1.54.0", false, "bogusCombinators");
+    B.Deprecation_import_null_true_import = new A.Deprecation("import", null, true, "import");
+    B.Deprecation_jYb = new A.Deprecation0("abs-percent", "1.65.0", "Passing percentages to the Sass abs() function.", false, "absPercent");
+    B.Deprecation_kmo = new A.Deprecation0("fs-importer-cwd", "1.73.0", "Using the current working directory as an implicit load path.", false, "fsImporterCwd");
+    B.Deprecation_oCX = new A.Deprecation0("function-units", "1.56.0", "Passing invalid units to built-in functions.", false, "functionUnits");
+    B.Deprecation_oJv = new A.Deprecation("slash-div", "1.33.0", false, "slashDiv");
+    B.Deprecation_omH = new A.Deprecation0("null-alpha", "1.62.3", "Passing null as alpha in the JS API.", false, "nullAlpha");
+    B.Deprecation_oty = new A.Deprecation0("user-authored", null, null, false, "userAuthored");
+    B.Deprecation_qBS = new A.Deprecation0("css-function-mixin", "1.76.0", "Function and mixin names beginning with --.", false, "cssFunctionMixin");
+    B.Deprecation_qd9 = new A.Deprecation0("import", null, "@import rules.", true, "import");
+    B.Deprecation_uNF = new A.Deprecation("moz-document", "1.7.2", false, "mozDocument");
+    B.Deprecation_woc = new A.Deprecation0("strict-unary", "1.55.0", "Ambiguous + and - operators.", false, "strictUnary");
+    B.Deprecation_xw8 = new A.Deprecation0("elseif", "1.3.2", "@elseif.", false, "elseif");
+    B.Deprecation_zrt = new A.Deprecation("duplicate-var-flags", "1.62.0", false, "duplicateVarFlags");
+    B.Duration_0 = new A.Duration(0);
+    B.ExtendMode_allTargets_allTargets = new A.ExtendMode("allTargets", "allTargets");
+    B.ExtendMode_allTargets_allTargets0 = new A.ExtendMode0("allTargets", "allTargets");
+    B.ExtendMode_normal_normal = new A.ExtendMode("normal", "normal");
+    B.ExtendMode_normal_normal0 = new A.ExtendMode0("normal", "normal");
+    B.ExtendMode_replace_replace = new A.ExtendMode("replace", "replace");
+    B.ExtendMode_replace_replace0 = new A.ExtendMode0("replace", "replace");
+    B.JsonDecoder_null = new A.JsonDecoder(null);
+    B.JsonEncoder_null = new A.JsonEncoder(null);
+    B.LineFeed_75j = new A.LineFeed0("lfcr", "\n\r", "lfcr");
+    B.LineFeed_89t = new A.LineFeed0("cr", "\r", "cr");
+    B.LineFeed_A4L = new A.LineFeed0("crlf", "\r\n", "crlf");
+    B.LineFeed_LvD = new A.LineFeed0("lf", "\n", "lf");
+    B.LineFeed_lf = new A.LineFeed("lf");
+    B.ListSeparator_ECn = new A.ListSeparator("comma", ",", "comma");
+    B.ListSeparator_ECn0 = new A.ListSeparator0("comma", ",", "comma");
+    B.ListSeparator_cQA = new A.ListSeparator("slash", "/", "slash");
+    B.ListSeparator_cQA0 = new A.ListSeparator0("slash", "/", "slash");
+    B.ListSeparator_nbm = new A.ListSeparator("space", " ", "space");
+    B.ListSeparator_nbm0 = new A.ListSeparator0("space", " ", "space");
+    B.ListSeparator_undecided_null_undecided = new A.ListSeparator("undecided", null, "undecided");
+    B.ListSeparator_undecided_null_undecided0 = new A.ListSeparator0("undecided", null, "undecided");
+    B.List_2jN = A._setArrayType(makeConstList([0, 0, 32722, 12287, 65534, 34815, 65534, 18431]), type$.JSArray_int);
+    B.List_42A = A._setArrayType(makeConstList([0, 0, 65490, 45055, 65535, 34815, 65534, 18431]), type$.JSArray_int);
+    B.List_4AN = A._setArrayType(makeConstList([0, 0, 32754, 11263, 65534, 34815, 65534, 18431]), type$.JSArray_int);
+    B.Object_79D = {em: 0, rem: 1, ex: 2, rex: 3, cap: 4, rcap: 5, ch: 6, rch: 7, ic: 8, ric: 9, lh: 10, rlh: 11, vw: 12, lvw: 13, svw: 14, dvw: 15, vh: 16, lvh: 17, svh: 18, dvh: 19, vi: 20, lvi: 21, svi: 22, dvi: 23, vb: 24, lvb: 25, svb: 26, dvb: 27, vmin: 28, lvmin: 29, svmin: 30, dvmin: 31, vmax: 32, lvmax: 33, svmax: 34, dvmax: 35, cqw: 36, cqh: 37, cqi: 38, cqb: 39, cqmin: 40, cqmax: 41, cm: 42, mm: 43, q: 44, in: 45, pt: 46, pc: 47, px: 48};
+    B.Set_ot1A = new A.ConstantStringSet(B.Object_79D, 49, type$.ConstantStringSet_String);
+    B.Object_Yf3 = {deg: 0, grad: 1, rad: 2, turn: 3};
+    B.Set_YZQG9 = new A.ConstantStringSet(B.Object_Yf3, 4, type$.ConstantStringSet_String);
+    B.Object_s_0_ms_1 = {s: 0, ms: 1};
+    B.Set_wEo81 = new A.ConstantStringSet(B.Object_s_0_ms_1, 2, type$.ConstantStringSet_String);
+    B.Object_hz_0_khz_1 = {hz: 0, khz: 1};
+    B.Set_y00Wb = new A.ConstantStringSet(B.Object_hz_0_khz_1, 2, type$.ConstantStringSet_String);
+    B.Object_3CF = {dpi: 0, dpcm: 1, dppx: 2};
+    B.Set_Db0y4 = new A.ConstantStringSet(B.Object_3CF, 3, type$.ConstantStringSet_String);
+    B.List_Eeh = A._setArrayType(makeConstList([B.Set_ot1A, B.Set_YZQG9, B.Set_wEo81, B.Set_y00Wb, B.Set_Db0y4]), A.findType("JSArray<Set<String>>"));
+    B.List_GVy = A._setArrayType(makeConstList([0, 0, 26624, 1023, 65534, 2047, 65534, 2047]), type$.JSArray_int);
+    B.List_M2I0 = A._setArrayType(makeConstList([0, 0, 32722, 12287, 65535, 34815, 65534, 18431]), type$.JSArray_int);
+    B.List_M2I = A._setArrayType(makeConstList([0, 0, 65490, 12287, 65535, 34815, 65534, 18431]), type$.JSArray_int);
+    B.Deprecation_gQW = new A.Deprecation("null-alpha", "1.62.3", false, "nullAlpha");
+    B.Deprecation_ErI = new A.Deprecation("calc-interp", null, false, "calcInterp");
+    B.List_V43 = A._setArrayType(makeConstList([B.Deprecation_gkc, B.Deprecation_EJz, B.Deprecation_uNF, B.Deprecation_IMm, B.Deprecation_2nU, B.Deprecation_iDZ, B.Deprecation_oJv, B.Deprecation_ido, B.Deprecation_2Vk, B.Deprecation_2jN, B.Deprecation_zrt, B.Deprecation_gQW, B.Deprecation_GFc, B.Deprecation_B4v, B.Deprecation_HJ0, B.Deprecation_import_null_true_import, B.Deprecation_JeE, B.Deprecation_ErI]), A.findType("JSArray<Deprecation>"));
+    B.List_VOY = A._setArrayType(makeConstList([0, 0, 32776, 33792, 1, 10240, 0, 0]), type$.JSArray_int);
+    B.List_empty11 = A._setArrayType(makeConstList([]), type$.JSArray_Argument);
+    B.List_empty22 = A._setArrayType(makeConstList([]), type$.JSArray_Argument_2);
+    B.List_empty24 = A._setArrayType(makeConstList([]), type$.JSArray_AsyncCallable_2);
+    B.List_empty25 = A._setArrayType(makeConstList([]), type$.JSArray_AsyncImporter);
+    B.List_empty2 = A._setArrayType(makeConstList([]), type$.JSArray_ComplexSelector);
+    B.List_empty15 = A._setArrayType(makeConstList([]), type$.JSArray_ComplexSelector_2);
+    B.List_empty0 = A._setArrayType(makeConstList([]), type$.JSArray_ComplexSelectorComponent);
+    B.List_empty13 = A._setArrayType(makeConstList([]), type$.JSArray_ComplexSelectorComponent_2);
+    B.List_empty10 = A._setArrayType(makeConstList([]), type$.JSArray_ConfiguredVariable);
+    B.List_empty21 = A._setArrayType(makeConstList([]), type$.JSArray_ConfiguredVariable_2);
+    B.List_empty3 = A._setArrayType(makeConstList([]), type$.JSArray_CssNode);
+    B.List_empty16 = A._setArrayType(makeConstList([]), type$.JSArray_CssNode_2);
+    B.List_empty1 = A._setArrayType(makeConstList([]), type$.JSArray_CssValue_Combinator);
+    B.List_empty14 = A._setArrayType(makeConstList([]), type$.JSArray_CssValue_Combinator_2);
+    B.List_empty9 = A._setArrayType(makeConstList([]), type$.JSArray_Expression);
+    B.List_empty20 = A._setArrayType(makeConstList([]), type$.JSArray_Expression_2);
+    B.List_empty5 = A._setArrayType(makeConstList([]), type$.JSArray_Extension);
+    B.List_empty17 = A._setArrayType(makeConstList([]), type$.JSArray_Extension_2);
+    B.List_empty23 = A._setArrayType(makeConstList([]), type$.JSArray_Importer_2);
+    B.List_empty7 = A._setArrayType(makeConstList([]), A.findType("JSArray<Module0<0&>>"));
+    B.List_empty18 = A._setArrayType(makeConstList([]), A.findType("JSArray<Module1<0&>>"));
+    B.List_empty12 = A._setArrayType(makeConstList([]), type$.JSArray_Statement);
+    B.List_empty = A._setArrayType(makeConstList([]), type$.JSArray_String);
+    B.List_empty8 = A._setArrayType(makeConstList([]), type$.JSArray_Value);
+    B.List_empty19 = A._setArrayType(makeConstList([]), type$.JSArray_Value_2);
+    B.List_empty4 = A._setArrayType(makeConstList([]), type$.JSArray_int);
+    B.List_empty6 = A._setArrayType(makeConstList([]), type$.JSArray_dynamic);
+    B.List_jM9 = A._setArrayType(makeConstList([B.Deprecation_MMc, B.Deprecation_xw8, B.Deprecation_Iit, B.Deprecation_Ssf, B.Deprecation_W6Z, B.Deprecation_EfO, B.Deprecation_E8a, B.Deprecation_5pG, B.Deprecation_woc, B.Deprecation_oCX, B.Deprecation_iXE, B.Deprecation_omH, B.Deprecation_jYb, B.Deprecation_kmo, B.Deprecation_qBS, B.Deprecation_qd9, B.Deprecation_oty, B.Deprecation_Agq]), A.findType("JSArray<Deprecation0>"));
+    B.List_kUZ = A._setArrayType(makeConstList([B.CalculationOperator_g2q0, B.CalculationOperator_CxF0, B.CalculationOperator_1710, B.CalculationOperator_Qf10]), A.findType("JSArray<CalculationOperator0>"));
+    B.List_oyU = A._setArrayType(makeConstList([0, 0, 27858, 1023, 65534, 51199, 65535, 32767]), type$.JSArray_int);
+    B.List_piR = A._setArrayType(makeConstList([0, 0, 24576, 1023, 65534, 34815, 65534, 18431]), type$.JSArray_int);
+    B.Object_Jgz = {length: 0, angle: 1, time: 2, frequency: 3, "pixel density": 4};
+    B.List_Mul = A._setArrayType(makeConstList(["in", "cm", "pc", "mm", "q", "pt", "px"]), type$.JSArray_String);
+    B.List_deg_grad_rad_turn = A._setArrayType(makeConstList(["deg", "grad", "rad", "turn"]), type$.JSArray_String);
+    B.List_s_ms = A._setArrayType(makeConstList(["s", "ms"]), type$.JSArray_String);
+    B.List_Hz_kHz = A._setArrayType(makeConstList(["Hz", "kHz"]), type$.JSArray_String);
+    B.List_dpi_dpcm_dppx = A._setArrayType(makeConstList(["dpi", "dpcm", "dppx"]), type$.JSArray_String);
+    B.Map_397RH = new A.ConstantStringMap(B.Object_Jgz, [B.List_Mul, B.List_deg_grad_rad_turn, B.List_s_ms, B.List_Hz_kHz, B.List_dpi_dpcm_dppx], A.findType("ConstantStringMap<String,List<String>>"));
+    B.Map_empty7 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Module0<AsyncCallable>,List<CssComment>>"));
+    B.Map_empty0 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Module0<Callable0>,List<CssComment>>"));
+    B.Map_empty2 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Module0<0&>,List<CssComment>>"));
+    B.Map_empty15 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Module1<AsyncCallable0>,List<CssComment0>>"));
+    B.Map_empty9 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Module1<Callable>,List<CssComment0>>"));
+    B.Map_empty11 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Module1<0&>,List<CssComment0>>"));
+    B.Map_empty4 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,AstNode>"));
+    B.Map_empty12 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,AstNode0>"));
+    B.Map_empty6 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Expression>"));
+    B.Map_empty14 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Expression0>"));
+    B.Map_empty8 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Module0<AsyncCallable>>"));
+    B.Map_empty1 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Module0<Callable0>>"));
+    B.Map_empty16 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Module1<AsyncCallable0>>"));
+    B.Map_empty10 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Module1<Callable>>"));
+    B.Map_empty5 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Value>"));
+    B.Map_empty13 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String,Value0>"));
+    B.Map_empty3 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Symbol0,@>"));
+    B.Map_empty = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<String?,String>"));
+    B.Object_AiQ = {in: 0, cm: 1, pc: 2, mm: 3, q: 4, pt: 5, px: 6, deg: 7, grad: 8, rad: 9, turn: 10, s: 11, ms: 12, Hz: 13, kHz: 14, dpi: 15, dpcm: 16, dppx: 17};
+    B.Object_Uy1 = {in: 0, cm: 1, pc: 2, mm: 3, q: 4, pt: 5, px: 6};
+    B.Map_MuACk = new A.ConstantStringMap(B.Object_Uy1, [1, 0.39370078740157477, 0.16666666666666666, 0.03937007874015748, 0.00984251968503937, 0.013888888888888888, 0.010416666666666666], type$.ConstantStringMap_String_double);
+    B.Map_MuHeh = new A.ConstantStringMap(B.Object_Uy1, [2.54, 1, 0.42333333333333334, 0.1, 0.025, 0.035277777777777776, 0.026458333333333334], type$.ConstantStringMap_String_double);
+    B.Map_Mudgs = new A.ConstantStringMap(B.Object_Uy1, [6, 2.3622047244094486, 1, 0.2362204724409449, 0.05905511811023623, 0.08333333333333333, 0.0625], type$.ConstantStringMap_String_double);
+    B.Map_Mu8oi = new A.ConstantStringMap(B.Object_Uy1, [25.4, 10, 4.233333333333333, 1, 0.25, 0.35277777777777775, 0.26458333333333334], type$.ConstantStringMap_String_double);
+    B.Map_MusBb = new A.ConstantStringMap(B.Object_Uy1, [101.6, 40, 16.933333333333334, 4, 1, 1.411111111111111, 1.0583333333333333], type$.ConstantStringMap_String_double);
+    B.Map_MuX5a = new A.ConstantStringMap(B.Object_Uy1, [72, 28.346456692913385, 12, 2.834645669291339, 0.7086614173228347, 1, 0.75], type$.ConstantStringMap_String_double);
+    B.Map_MuVWp = new A.ConstantStringMap(B.Object_Uy1, [96, 37.79527559055118, 16, 3.7795275590551185, 0.9448818897637796, 1.3333333333333333, 1], type$.ConstantStringMap_String_double);
+    B.Map_P98ha = new A.ConstantStringMap(B.Object_Yf3, [1, 0.9, 57.29577951308232, 360], type$.ConstantStringMap_String_double);
+    B.Map_P9IYz = new A.ConstantStringMap(B.Object_Yf3, [1.1111111111111112, 1, 63.66197723675813, 400], type$.ConstantStringMap_String_double);
+    B.Map_P9t42 = new A.ConstantStringMap(B.Object_Yf3, [0.017453292519943295, 0.015707963267948967, 1, 6.283185307179586], type$.ConstantStringMap_String_double);
+    B.Map_P9ZUB = new A.ConstantStringMap(B.Object_Yf3, [0.002777777777777778, 0.0025, 0.15915494309189535, 1], type$.ConstantStringMap_String_double);
+    B.Map_kUCK0 = new A.ConstantStringMap(B.Object_s_0_ms_1, [1, 0.001], type$.ConstantStringMap_String_double);
+    B.Map_kUfVB = new A.ConstantStringMap(B.Object_s_0_ms_1, [1000, 1], type$.ConstantStringMap_String_double);
+    B.Object_Hz_0_kHz_1 = {Hz: 0, kHz: 1};
+    B.Map_WfkC8 = new A.ConstantStringMap(B.Object_Hz_0_kHz_1, [1, 1000], type$.ConstantStringMap_String_double);
+    B.Map_Wfs7p = new A.ConstantStringMap(B.Object_Hz_0_kHz_1, [0.001, 1], type$.ConstantStringMap_String_double);
+    B.Map_dgy9B = new A.ConstantStringMap(B.Object_3CF, [1, 2.54, 96], type$.ConstantStringMap_String_double);
+    B.Map_dgLkt = new A.ConstantStringMap(B.Object_3CF, [0.39370078740157477, 1, 37.79527559055118], type$.ConstantStringMap_String_double);
+    B.Map_dgw3K = new A.ConstantStringMap(B.Object_3CF, [0.010416666666666666, 0.026458333333333334, 1], type$.ConstantStringMap_String_double);
+    B.Map_gQqJO = new A.ConstantStringMap(B.Object_AiQ, [B.Map_MuACk, B.Map_MuHeh, B.Map_Mudgs, B.Map_Mu8oi, B.Map_MusBb, B.Map_MuX5a, B.Map_MuVWp, B.Map_P98ha, B.Map_P9IYz, B.Map_P9t42, B.Map_P9ZUB, B.Map_kUCK0, B.Map_kUfVB, B.Map_WfkC8, B.Map_Wfs7p, B.Map_dgy9B, B.Map_dgLkt, B.Map_dgw3K], A.findType("ConstantStringMap<String,Map<String,double>>"));
+    B.OptionType_I6i = new A.OptionType("OptionType.flag");
+    B.OptionType_tew = new A.OptionType("OptionType.single");
+    B.OptionType_yPm = new A.OptionType("OptionType.multiple");
+    B.OutputStyle_0 = new A.OutputStyle("expanded");
+    B.OutputStyle_00 = new A.OutputStyle0("expanded");
+    B.OutputStyle_1 = new A.OutputStyle("compressed");
+    B.OutputStyle_10 = new A.OutputStyle0("compressed");
+    B.Map_empty19 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<SelectorList,Box<SelectorList>>"));
+    B.Record2_EmptyExtensionStore_Map_empty = new A._Record_2(B.C_EmptyExtensionStore, B.Map_empty19);
+    B.Map_empty20 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<SelectorList0,Box0<SelectorList0>>"));
+    B.Record2_EmptyExtensionStore_Map_empty0 = new A._Record_2(B.C_EmptyExtensionStore0, B.Map_empty20);
+    B.SassBoolean_false = new A.SassBoolean(false);
+    B.SassBoolean_false0 = new A.SassBoolean0(false);
+    B.SassBoolean_true = new A.SassBoolean(true);
+    B.SassBoolean_true0 = new A.SassBoolean0(true);
+    B.SassList_bdS = new A.SassList(B.List_empty8, B.ListSeparator_ECn, false);
+    B.SassList_bdS0 = new A.SassList(B.List_empty8, B.ListSeparator_ECn, true);
+    B.SassList_bdS1 = new A.SassList0(B.List_empty19, B.ListSeparator_ECn0, false);
+    B.SassList_bdS2 = new A.SassList0(B.List_empty19, B.ListSeparator_ECn0, true);
+    B.SassList_k8F = new A.SassList0(B.List_empty19, B.ListSeparator_undecided_null_undecided0, false);
+    B.Map_empty21 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Value,Value>"));
+    B.SassMap_Map_empty = new A.SassMap(B.Map_empty21);
+    B.Map_empty22 = new A.ConstantStringMap(B.Object_empty, [], A.findType("ConstantStringMap<Value0,Value0>"));
+    B.SassMap_Map_empty0 = new A.SassMap0(B.Map_empty22);
+    B.Object_oyn = {".scss": 0, ".sass": 1, ".css": 2};
+    B.Set_0 = new A.ConstantStringSet(B.Object_oyn, 3, type$.ConstantStringSet_String);
+    B.Object_6Gw = {sass: 0, style: 1, default: 2};
+    B.Set_TnQrk = new A.ConstantStringSet(B.Object_6Gw, 3, type$.ConstantStringSet_String);
+    B.Set_empty1 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<CssMediaQuery>"));
+    B.Set_empty5 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<CssMediaQuery0>"));
+    B.Set_empty2 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<Module0<AsyncCallable>>"));
+    B.Set_empty0 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<Module0<Callable0>>"));
+    B.Set_empty6 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<Module1<AsyncCallable0>>"));
+    B.Set_empty4 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<Module1<Callable>>"));
+    B.Set_empty7 = new A.ConstantStringSet(B.Object_empty, 0, type$.ConstantStringSet_String);
+    B.Set_empty3 = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<StylesheetNode>"));
+    B.Set_empty = new A.ConstantStringSet(B.Object_empty, 0, A.findType("ConstantStringSet<Uri>"));
+    B.Object_q8Y = {is: 0, matches: 1, where: 2};
+    B.Set_mlzm2 = new A.ConstantStringSet(B.Object_q8Y, 3, type$.ConstantStringSet_String);
+    B.Set_mqKz = new A.GeneralConstantSet([B.BinaryOperator_2No, B.BinaryOperator_U77, B.BinaryOperator_u15, B.BinaryOperator_SjO], A.findType("GeneralConstantSet<BinaryOperator>"));
+    B.Set_mqKz0 = new A.GeneralConstantSet([B.BinaryOperator_2No0, B.BinaryOperator_U770, B.BinaryOperator_u150, B.BinaryOperator_SjO0], A.findType("GeneralConstantSet<BinaryOperator0>"));
+    B.Object_GUq = {calc: 0, clamp: 1, hypot: 2, sin: 3, cos: 4, tan: 5, asin: 6, acos: 7, atan: 8, sqrt: 9, exp: 10, sign: 11, mod: 12, rem: 13, atan2: 14, pow: 15, log: 16};
+    B.Set_yHF81 = new A.ConstantStringSet(B.Object_GUq, 17, type$.ConstantStringSet_String);
+    B.StderrLogger_false = new A.StderrLogger(false);
+    B.StderrLogger_false0 = new A.StderrLogger0(false);
+    B.Symbol__canonicalizeContext = new A.Symbol("_canonicalizeContext");
+    B.Symbol__evaluationContext = new A.Symbol("_evaluationContext");
+    B.Symbol__extensions = new A.Symbol("_extensions");
+    B.Symbol__sourceSpecificity = new A.Symbol("_sourceSpecificity");
+    B.Symbol_call = new A.Symbol("call");
+    B.Syntax_CSS_css = new A.Syntax("CSS", "css");
+    B.Syntax_CSS_css0 = new A.Syntax0("CSS", "css");
+    B.Syntax_SCSS_scss = new A.Syntax("SCSS", "scss");
+    B.Syntax_SCSS_scss0 = new A.Syntax0("SCSS", "scss");
+    B.Syntax_Sass_sass = new A.Syntax("Sass", "sass");
+    B.Syntax_Sass_sass0 = new A.Syntax0("Sass", "sass");
+    B.Type_ByteBuffer_EOZ = A.typeLiteral("ByteBuffer");
+    B.Type_ByteData_mF8 = A.typeLiteral("ByteData");
+    B.Type_Float32List_Ymk = A.typeLiteral("Float32List");
+    B.Type_Float64List_Ymk = A.typeLiteral("Float64List");
+    B.Type_Int16List_cot = A.typeLiteral("Int16List");
+    B.Type_Int32List_m1p = A.typeLiteral("Int32List");
+    B.Type_Int8List_woc = A.typeLiteral("Int8List");
+    B.Type_Object_QJv = A.typeLiteral("Object");
+    B.Type_Uint16List_2mh = A.typeLiteral("Uint16List");
+    B.Type_Uint32List_2mh = A.typeLiteral("Uint32List");
+    B.Type_Uint8ClampedList_9Bb = A.typeLiteral("Uint8ClampedList");
+    B.Type_Uint8List_CSc = A.typeLiteral("Uint8List");
+    B.UnaryOperator_AiQ = new A.UnaryOperator("minus", "-", "minus");
+    B.UnaryOperator_AiQ0 = new A.UnaryOperator0("minus", "-", "minus");
+    B.UnaryOperator_SJr = new A.UnaryOperator("divide", "/", "divide");
+    B.UnaryOperator_SJr0 = new A.UnaryOperator0("divide", "/", "divide");
+    B.UnaryOperator_cLp = new A.UnaryOperator("plus", "+", "plus");
+    B.UnaryOperator_cLp0 = new A.UnaryOperator0("plus", "+", "plus");
+    B.UnaryOperator_not_not_not = new A.UnaryOperator("not", "not", "not");
+    B.UnaryOperator_not_not_not0 = new A.UnaryOperator0("not", "not", "not");
+    B.Utf8Decoder_false = new A.Utf8Decoder(false);
+    B._ColorFormatEnum_hslFunction = new A._ColorFormatEnum("hslFunction");
+    B._ColorFormatEnum_hslFunction0 = new A._ColorFormatEnum0("hslFunction");
+    B._ColorFormatEnum_rgbFunction = new A._ColorFormatEnum("rgbFunction");
+    B._ColorFormatEnum_rgbFunction0 = new A._ColorFormatEnum0("rgbFunction");
+    B._IsBogusVisitor_false = new A._IsBogusVisitor(false);
+    B._IsBogusVisitor_false0 = new A._IsBogusVisitor0(false);
+    B._IsBogusVisitor_true = new A._IsBogusVisitor(true);
+    B._IsBogusVisitor_true0 = new A._IsBogusVisitor0(true);
+    B._IsInvisibleVisitor_false = new A._IsInvisibleVisitor0(false);
+    B._IsInvisibleVisitor_false0 = new A._IsInvisibleVisitor2(false);
+    B._IsInvisibleVisitor_false_false = new A._IsInvisibleVisitor(false, false);
+    B._IsInvisibleVisitor_false_false0 = new A._IsInvisibleVisitor1(false, false);
+    B._IsInvisibleVisitor_true = new A._IsInvisibleVisitor0(true);
+    B._IsInvisibleVisitor_true0 = new A._IsInvisibleVisitor2(true);
+    B._IsInvisibleVisitor_true_false = new A._IsInvisibleVisitor(true, false);
+    B._IsInvisibleVisitor_true_false0 = new A._IsInvisibleVisitor1(true, false);
+    B._IsInvisibleVisitor_true_true = new A._IsInvisibleVisitor(true, true);
+    B._IsInvisibleVisitor_true_true0 = new A._IsInvisibleVisitor1(true, true);
+    B._PathDirection_3KU = new A._PathDirection("above root");
+    B._PathDirection_8OV = new A._PathDirection("at root");
+    B._PathDirection_e7w = new A._PathDirection("reaches root");
+    B._PathDirection_yLX = new A._PathDirection("below root");
+    B._PathRelation_different = new A._PathRelation("different");
+    B._PathRelation_equal = new A._PathRelation("equal");
+    B._PathRelation_inconclusive = new A._PathRelation("inconclusive");
+    B._PathRelation_within = new A._PathRelation("within");
+    B._SingletonCssMediaQueryMergeResult_0 = new A._SingletonCssMediaQueryMergeResult("empty");
+    B._SingletonCssMediaQueryMergeResult_00 = new A._SingletonCssMediaQueryMergeResult0("empty");
+    B._SingletonCssMediaQueryMergeResult_1 = new A._SingletonCssMediaQueryMergeResult("unrepresentable");
+    B._SingletonCssMediaQueryMergeResult_10 = new A._SingletonCssMediaQueryMergeResult0("unrepresentable");
+    B._StreamGroupState_canceled = new A._StreamGroupState("canceled");
+    B._StreamGroupState_dormant = new A._StreamGroupState("dormant");
+    B._StreamGroupState_listening = new A._StreamGroupState("listening");
+    B._StreamGroupState_paused = new A._StreamGroupState("paused");
+    B._StringStackTrace_uwd = new A._StringStackTrace("");
+    B._ZoneFunction_NIe = new A._ZoneFunction(B.C__RootZone, A.async___rootHandleUncaughtError$closure());
+    B._ZoneFunction_QOa = new A._ZoneFunction(B.C__RootZone, A.async___rootRegisterUnaryCallback$closure());
+    B._ZoneFunction__RootZone__rootCreateTimer = new A._ZoneFunction(B.C__RootZone, A.async___rootCreateTimer$closure());
+    B._ZoneFunction__RootZone__rootErrorCallback = new A._ZoneFunction(B.C__RootZone, A.async___rootErrorCallback$closure());
+    B._ZoneFunction__RootZone__rootFork = new A._ZoneFunction(B.C__RootZone, A.async___rootFork$closure());
+    B._ZoneFunction__RootZone__rootPrint = new A._ZoneFunction(B.C__RootZone, A.async___rootPrint$closure());
+    B._ZoneFunction__RootZone__rootRegisterCallback = new A._ZoneFunction(B.C__RootZone, A.async___rootRegisterCallback$closure());
+    B._ZoneFunction__RootZone__rootRun = new A._ZoneFunction(B.C__RootZone, A.async___rootRun$closure());
+    B._ZoneFunction__RootZone__rootRunBinary = new A._ZoneFunction(B.C__RootZone, A.async___rootRunBinary$closure());
+    B._ZoneFunction__RootZone__rootRunUnary = new A._ZoneFunction(B.C__RootZone, A.async___rootRunUnary$closure());
+    B._ZoneFunction__RootZone__rootScheduleMicrotask = new A._ZoneFunction(B.C__RootZone, A.async___rootScheduleMicrotask$closure());
+    B._ZoneFunction_kWM = new A._ZoneFunction(B.C__RootZone, A.async___rootCreatePeriodicTimer$closure());
+    B._ZoneFunction_qxw = new A._ZoneFunction(B.C__RootZone, A.async___rootRegisterBinaryCallback$closure());
+    B._ZoneSpecification_48t = new A._ZoneSpecification(null, null, null, null, null, null, null, null, null, null, null, null, null);
+  })();
+  (function staticFields() {
+    $._JS_INTEROP_INTERCEPTOR_TAG = null;
+    $.toStringVisiting = A._setArrayType([], type$.JSArray_Object);
+    $.printToZone = null;
+    $.Primitives__identityHashCodeProperty = null;
+    $.BoundClosure__receiverFieldNameCache = null;
+    $.BoundClosure__interceptorFieldNameCache = null;
+    $.getTagFunction = null;
+    $.alternateTagFunction = null;
+    $.prototypeForTagFunction = null;
+    $.dispatchRecordsForInstanceTags = null;
+    $.interceptorsForUncacheableTags = null;
+    $.initNativeDispatchFlag = null;
+    $._Record__computedFieldKeys = A._setArrayType([], A.findType("JSArray<List<Object>?>"));
+    $._nextCallback = null;
+    $._lastCallback = null;
+    $._lastPriorityCallback = null;
+    $._isInCallbackLoop = false;
+    $.Zone__current = B.C__RootZone;
+    $._RootZone__rootDelegate = null;
+    $.Uri__cachedBaseString = "";
+    $.Uri__cachedBaseUri = null;
+    $._fs = null;
+    $._currentUriBase = null;
+    $._current = null;
+    $._subselectorPseudos = A.LinkedHashSet_LinkedHashSet$_literal(["is", "matches", "where", "any", "nth-child", "nth-last-child"], type$.String);
+    $._rootishPseudoClasses = A.LinkedHashSet_LinkedHashSet$_literal(["root", "scope", "host", "host-context"], type$.String);
+    $._features = A.LinkedHashSet_LinkedHashSet$_literal(["global-variable-shadowing", "extend-selector-pseudoclass", "units-level-3", "at-error", "custom-property"], type$.String);
+    $._realCaseCache = function() {
+      var t1 = type$.String;
+      return A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+    }();
+    $._selectorPseudoClasses = A.LinkedHashSet_LinkedHashSet$_literal(["not", "is", "matches", "where", "current", "any", "has", "host", "host-context"], type$.String);
+    $._selectorPseudoElements = A.LinkedHashSet_LinkedHashSet$_literal(["slotted"], type$.String);
+    $._glyphs = B.C_UnicodeGlyphSet;
+    $._rootishPseudoClasses0 = A.LinkedHashSet_LinkedHashSet$_literal(["root", "scope", "host", "host-context"], type$.String);
+    $._realCaseCache0 = function() {
+      var t1 = type$.String;
+      return A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+    }();
+    $._features0 = A.LinkedHashSet_LinkedHashSet$_literal(["global-variable-shadowing", "extend-selector-pseudoclass", "units-level-3", "at-error", "custom-property"], type$.String);
+    $._selectorPseudoClasses0 = A.LinkedHashSet_LinkedHashSet$_literal(["not", "is", "matches", "where", "current", "any", "has", "host", "host-context"], type$.String);
+    $._selectorPseudoElements0 = A.LinkedHashSet_LinkedHashSet$_literal(["slotted"], type$.String);
+    $._subselectorPseudos0 = A.LinkedHashSet_LinkedHashSet$_literal(["is", "matches", "where", "any", "nth-child", "nth-last-child"], type$.String);
+  })();
+  (function lazyInitializers() {
+    var _lazyFinal = hunkHelpers.lazyFinal,
+      _lazy = hunkHelpers.lazy;
+    _lazyFinal($, "DART_CLOSURE_PROPERTY_NAME", "$get$DART_CLOSURE_PROPERTY_NAME", () => A.getIsolateAffinityTag("_$dart_dartClosure"));
+    _lazyFinal($, "nullFuture", "$get$nullFuture", () => B.C__RootZone.run$1$1(0, new A.nullFuture_closure(), A.findType("Future<Null>")));
+    _lazyFinal($, "TypeErrorDecoder_noSuchMethodPattern", "$get$TypeErrorDecoder_noSuchMethodPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn({
+      toString: function() {
+        return "$receiver$";
+      }
+    })));
+    _lazyFinal($, "TypeErrorDecoder_notClosurePattern", "$get$TypeErrorDecoder_notClosurePattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn({$method$: null,
+      toString: function() {
+        return "$receiver$";
+      }
+    })));
+    _lazyFinal($, "TypeErrorDecoder_nullCallPattern", "$get$TypeErrorDecoder_nullCallPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn(null)));
+    _lazyFinal($, "TypeErrorDecoder_nullLiteralCallPattern", "$get$TypeErrorDecoder_nullLiteralCallPattern", () => A.TypeErrorDecoder_extractPattern(function() {
+      var $argumentsExpr$ = "$arguments$";
+      try {
+        null.$method$($argumentsExpr$);
+      } catch (e) {
+        return e.message;
+      }
+    }()));
+    _lazyFinal($, "TypeErrorDecoder_undefinedCallPattern", "$get$TypeErrorDecoder_undefinedCallPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokeCallErrorOn(void 0)));
+    _lazyFinal($, "TypeErrorDecoder_undefinedLiteralCallPattern", "$get$TypeErrorDecoder_undefinedLiteralCallPattern", () => A.TypeErrorDecoder_extractPattern(function() {
+      var $argumentsExpr$ = "$arguments$";
+      try {
+        (void 0).$method$($argumentsExpr$);
+      } catch (e) {
+        return e.message;
+      }
+    }()));
+    _lazyFinal($, "TypeErrorDecoder_nullPropertyPattern", "$get$TypeErrorDecoder_nullPropertyPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokePropertyErrorOn(null)));
+    _lazyFinal($, "TypeErrorDecoder_nullLiteralPropertyPattern", "$get$TypeErrorDecoder_nullLiteralPropertyPattern", () => A.TypeErrorDecoder_extractPattern(function() {
+      try {
+        null.$method$;
+      } catch (e) {
+        return e.message;
+      }
+    }()));
+    _lazyFinal($, "TypeErrorDecoder_undefinedPropertyPattern", "$get$TypeErrorDecoder_undefinedPropertyPattern", () => A.TypeErrorDecoder_extractPattern(A.TypeErrorDecoder_provokePropertyErrorOn(void 0)));
+    _lazyFinal($, "TypeErrorDecoder_undefinedLiteralPropertyPattern", "$get$TypeErrorDecoder_undefinedLiteralPropertyPattern", () => A.TypeErrorDecoder_extractPattern(function() {
+      try {
+        (void 0).$method$;
+      } catch (e) {
+        return e.message;
+      }
+    }()));
+    _lazyFinal($, "_AsyncRun__scheduleImmediateClosure", "$get$_AsyncRun__scheduleImmediateClosure", () => A._AsyncRun__initializeScheduleImmediate());
+    _lazyFinal($, "Future__nullFuture", "$get$Future__nullFuture", () => A.findType("_Future<Null>")._as($.$get$nullFuture()));
+    _lazyFinal($, "Future__falseFuture", "$get$Future__falseFuture", () => A._Future$zoneValue(false, B.C__RootZone, type$.bool));
+    _lazyFinal($, "_RootZone__rootMap", "$get$_RootZone__rootMap", () => {
+      var t1 = type$.dynamic;
+      return A.HashMap_HashMap(t1, t1);
+    });
+    _lazyFinal($, "_Utf8Decoder__reusableBuffer", "$get$_Utf8Decoder__reusableBuffer", () => A.NativeUint8List_NativeUint8List(4096));
+    _lazyFinal($, "_Utf8Decoder__decoder", "$get$_Utf8Decoder__decoder", () => new A._Utf8Decoder__decoder_closure().call$0());
+    _lazyFinal($, "_Utf8Decoder__decoderNonfatal", "$get$_Utf8Decoder__decoderNonfatal", () => new A._Utf8Decoder__decoderNonfatal_closure().call$0());
+    _lazyFinal($, "_Base64Decoder__inverseAlphabet", "$get$_Base64Decoder__inverseAlphabet", () => A.NativeInt8List__create1(A._ensureNativeList(A._setArrayType([-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -2, -2, -2, -2, -2, 62, -2, 62, -2, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -2, -2, -2, -1, -2, -2, -2, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -2, -2, -2, -2, 63, -2, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -2, -2, -2, -2, -2], type$.JSArray_int))));
+    _lazyFinal($, "_Uri__isWindowsCached", "$get$_Uri__isWindowsCached", () => {
+      var t1 = typeof process != "undefined" && Object.prototype.toString.call(process) == "[object process]" && process.platform == "win32";
+      return t1;
+    });
+    _lazyFinal($, "_Uri__needsNoEncoding", "$get$_Uri__needsNoEncoding", () => A.RegExp_RegExp("^[\\-\\.0-9A-Z_a-z~]*$", false));
+    _lazyFinal($, "_hashSeed", "$get$_hashSeed", () => A.objectHashCode(B.Type_Object_QJv));
+    _lazyFinal($, "_scannerTables", "$get$_scannerTables", () => A._createTables());
+    _lazyFinal($, "Option__invalidChars", "$get$Option__invalidChars", () => A.RegExp_RegExp("[ \\t\\r\\n\"'\\\\/]", false));
+    _lazyFinal($, "_isStrictMode", "$get$_isStrictMode", () => new A._isStrictMode_closure().call$0());
+    _lazyFinal($, "alwaysValid", "$get$alwaysValid", () => new A.alwaysValid_closure());
+    _lazyFinal($, "readline", "$get$readline", () => self.readline);
+    _lazyFinal($, "windows", "$get$windows", () => A.Context_Context($.$get$Style_windows()));
+    _lazyFinal($, "url", "$get$url", () => A.Context_Context($.$get$Style_url()));
+    _lazyFinal($, "context", "$get$context", () => new A.Context($.$get$Style_platform(), null));
+    _lazyFinal($, "Style_posix", "$get$Style_posix", () => new A.PosixStyle(A.RegExp_RegExp("/", false), A.RegExp_RegExp("[^/]$", false), A.RegExp_RegExp("^/", false)));
+    _lazyFinal($, "Style_windows", "$get$Style_windows", () => new A.WindowsStyle(A.RegExp_RegExp("[/\\\\]", false), A.RegExp_RegExp("[^/\\\\]$", false), A.RegExp_RegExp("^(\\\\\\\\[^\\\\]+\\\\[^\\\\/]+|[a-zA-Z]:[/\\\\])", false), A.RegExp_RegExp("^[/\\\\](?![/\\\\])", false)));
+    _lazyFinal($, "Style_url", "$get$Style_url", () => new A.UrlStyle(A.RegExp_RegExp("/", false), A.RegExp_RegExp("(^[a-zA-Z][-+.a-zA-Z\\d]*://|[^/])$", false), A.RegExp_RegExp("[a-zA-Z][-+.a-zA-Z\\d]*://[^/]*", false), A.RegExp_RegExp("^/", false)));
+    _lazyFinal($, "Style_platform", "$get$Style_platform", () => A.Style__getPlatformStyle());
+    _lazyFinal($, "startVersion", "$get$startVersion", () => A.RegExp_RegExp("^(\\d+)\\.(\\d+)\\.(\\d+)(-([0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*))?(\\+([0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*))?", false));
+    _lazyFinal($, "completeVersion", "$get$completeVersion", () => A.RegExp_RegExp($.$get$startVersion().pattern + "$", false));
+    _lazyFinal($, "IfExpression_declaration", "$get$IfExpression_declaration", () => A.ArgumentDeclaration_ArgumentDeclaration$parse(string$.x40funct, null));
+    _lazyFinal($, "colorsByName", "$get$colorsByName", () => A.LinkedHashMap_LinkedHashMap$_literal(["yellowgreen", A.SassColor$rgb(154, 205, 50, 1), "yellow", A.SassColor$rgb(255, 255, 0, 1), "whitesmoke", A.SassColor$rgb(245, 245, 245, 1), "white", A.SassColor$rgb(255, 255, 255, 1), "wheat", A.SassColor$rgb(245, 222, 179, 1), "violet", A.SassColor$rgb(238, 130, 238, 1), "turquoise", A.SassColor$rgb(64, 224, 208, 1), "transparent", A.SassColor$rgb(0, 0, 0, 0), "tomato", A.SassColor$rgb(255, 99, 71, 1), "thistle", A.SassColor$rgb(216, 191, 216, 1), "teal", A.SassColor$rgb(0, 128, 128, 1), "tan", A.SassColor$rgb(210, 180, 140, 1), "steelblue", A.SassColor$rgb(70, 130, 180, 1), "springgreen", A.SassColor$rgb(0, 255, 127, 1), "snow", A.SassColor$rgb(255, 250, 250, 1), "slategrey", A.SassColor$rgb(112, 128, 144, 1), "slategray", A.SassColor$rgb(112, 128, 144, 1), "slateblue", A.SassColor$rgb(106, 90, 205, 1), "skyblue", A.SassColor$rgb(135, 206, 235, 1), "silver", A.SassColor$rgb(192, 192, 192, 1), "sienna", A.SassColor$rgb(160, 82, 45, 1), "seashell", A.SassColor$rgb(255, 245, 238, 1), "seagreen", A.SassColor$rgb(46, 139, 87, 1), "sandybrown", A.SassColor$rgb(244, 164, 96, 1), "salmon", A.SassColor$rgb(250, 128, 114, 1), "saddlebrown", A.SassColor$rgb(139, 69, 19, 1), "royalblue", A.SassColor$rgb(65, 105, 225, 1), "rosybrown", A.SassColor$rgb(188, 143, 143, 1), "red", A.SassColor$rgb(255, 0, 0, 1), "rebeccapurple", A.SassColor$rgb(102, 51, 153, 1), "purple", A.SassColor$rgb(128, 0, 128, 1), "powderblue", A.SassColor$rgb(176, 224, 230, 1), "plum", A.SassColor$rgb(221, 160, 221, 1), "pink", A.SassColor$rgb(255, 192, 203, 1), "peru", A.SassColor$rgb(205, 133, 63, 1), "peachpuff", A.SassColor$rgb(255, 218, 185, 1), "papayawhip", A.SassColor$rgb(255, 239, 213, 1), "palevioletred", A.SassColor$rgb(219, 112, 147, 1), "paleturquoise", A.SassColor$rgb(175, 238, 238, 1), "palegreen", A.SassColor$rgb(152, 251, 152, 1), "palegoldenrod", A.SassColor$rgb(238, 232, 170, 1), "orchid", A.SassColor$rgb(218, 112, 214, 1), "orangered", A.SassColor$rgb(255, 69, 0, 1), "orange", A.SassColor$rgb(255, 165, 0, 1), "olivedrab", A.SassColor$rgb(107, 142, 35, 1), "olive", A.SassColor$rgb(128, 128, 0, 1), "oldlace", A.SassColor$rgb(253, 245, 230, 1), "navy", A.SassColor$rgb(0, 0, 128, 1), "navajowhite", A.SassColor$rgb(255, 222, 173, 1), "moccasin", A.SassColor$rgb(255, 228, 181, 1), "mistyrose", A.SassColor$rgb(255, 228, 225, 1), "mintcream", A.SassColor$rgb(245, 255, 250, 1), "midnightblue", A.SassColor$rgb(25, 25, 112, 1), "mediumvioletred", A.SassColor$rgb(199, 21, 133, 1), "mediumturquoise", A.SassColor$rgb(72, 209, 204, 1), "mediumspringgreen", A.SassColor$rgb(0, 250, 154, 1), "mediumslateblue", A.SassColor$rgb(123, 104, 238, 1), "mediumseagreen", A.SassColor$rgb(60, 179, 113, 1), "mediumpurple", A.SassColor$rgb(147, 112, 219, 1), "mediumorchid", A.SassColor$rgb(186, 85, 211, 1), "mediumblue", A.SassColor$rgb(0, 0, 205, 1), "mediumaquamarine", A.SassColor$rgb(102, 205, 170, 1), "maroon", A.SassColor$rgb(128, 0, 0, 1), "magenta", A.SassColor$rgb(255, 0, 255, 1), "linen", A.SassColor$rgb(250, 240, 230, 1), "limegreen", A.SassColor$rgb(50, 205, 50, 1), "lime", A.SassColor$rgb(0, 255, 0, 1), "lightyellow", A.SassColor$rgb(255, 255, 224, 1), "lightsteelblue", A.SassColor$rgb(176, 196, 222, 1), "lightslategrey", A.SassColor$rgb(119, 136, 153, 1), "lightslategray", A.SassColor$rgb(119, 136, 153, 1), "lightskyblue", A.SassColor$rgb(135, 206, 250, 1), "lightseagreen", A.SassColor$rgb(32, 178, 170, 1), "lightsalmon", A.SassColor$rgb(255, 160, 122, 1), "lightpink", A.SassColor$rgb(255, 182, 193, 1), "lightgrey", A.SassColor$rgb(211, 211, 211, 1), "lightgreen", A.SassColor$rgb(144, 238, 144, 1), "lightgray", A.SassColor$rgb(211, 211, 211, 1), "lightgoldenrodyellow", A.SassColor$rgb(250, 250, 210, 1), "lightcyan", A.SassColor$rgb(224, 255, 255, 1), "lightcoral", A.SassColor$rgb(240, 128, 128, 1), "lightblue", A.SassColor$rgb(173, 216, 230, 1), "lemonchiffon", A.SassColor$rgb(255, 250, 205, 1), "lawngreen", A.SassColor$rgb(124, 252, 0, 1), "lavenderblush", A.SassColor$rgb(255, 240, 245, 1), "lavender", A.SassColor$rgb(230, 230, 250, 1), "khaki", A.SassColor$rgb(240, 230, 140, 1), "ivory", A.SassColor$rgb(255, 255, 240, 1), "indigo", A.SassColor$rgb(75, 0, 130, 1), "indianred", A.SassColor$rgb(205, 92, 92, 1), "hotpink", A.SassColor$rgb(255, 105, 180, 1), "honeydew", A.SassColor$rgb(240, 255, 240, 1), "grey", A.SassColor$rgb(128, 128, 128, 1), "greenyellow", A.SassColor$rgb(173, 255, 47, 1), "green", A.SassColor$rgb(0, 128, 0, 1), "gray", A.SassColor$rgb(128, 128, 128, 1), "goldenrod", A.SassColor$rgb(218, 165, 32, 1), "gold", A.SassColor$rgb(255, 215, 0, 1), "ghostwhite", A.SassColor$rgb(248, 248, 255, 1), "gainsboro", A.SassColor$rgb(220, 220, 220, 1), "fuchsia", A.SassColor$rgb(255, 0, 255, 1), "forestgreen", A.SassColor$rgb(34, 139, 34, 1), "floralwhite", A.SassColor$rgb(255, 250, 240, 1), "firebrick", A.SassColor$rgb(178, 34, 34, 1), "dodgerblue", A.SassColor$rgb(30, 144, 255, 1), "dimgrey", A.SassColor$rgb(105, 105, 105, 1), "dimgray", A.SassColor$rgb(105, 105, 105, 1), "deepskyblue", A.SassColor$rgb(0, 191, 255, 1), "deeppink", A.SassColor$rgb(255, 20, 147, 1), "darkviolet", A.SassColor$rgb(148, 0, 211, 1), "darkturquoise", A.SassColor$rgb(0, 206, 209, 1), "darkslategrey", A.SassColor$rgb(47, 79, 79, 1), "darkslategray", A.SassColor$rgb(47, 79, 79, 1), "darkslateblue", A.SassColor$rgb(72, 61, 139, 1), "darkseagreen", A.SassColor$rgb(143, 188, 143, 1), "darksalmon", A.SassColor$rgb(233, 150, 122, 1), "darkred", A.SassColor$rgb(139, 0, 0, 1), "darkorchid", A.SassColor$rgb(153, 50, 204, 1), "darkorange", A.SassColor$rgb(255, 140, 0, 1), "darkolivegreen", A.SassColor$rgb(85, 107, 47, 1), "darkmagenta", A.SassColor$rgb(139, 0, 139, 1), "darkkhaki", A.SassColor$rgb(189, 183, 107, 1), "darkgrey", A.SassColor$rgb(169, 169, 169, 1), "darkgreen", A.SassColor$rgb(0, 100, 0, 1), "darkgray", A.SassColor$rgb(169, 169, 169, 1), "darkgoldenrod", A.SassColor$rgb(184, 134, 11, 1), "darkcyan", A.SassColor$rgb(0, 139, 139, 1), "darkblue", A.SassColor$rgb(0, 0, 139, 1), "cyan", A.SassColor$rgb(0, 255, 255, 1), "crimson", A.SassColor$rgb(220, 20, 60, 1), "cornsilk", A.SassColor$rgb(255, 248, 220, 1), "cornflowerblue", A.SassColor$rgb(100, 149, 237, 1), "coral", A.SassColor$rgb(255, 127, 80, 1), "chocolate", A.SassColor$rgb(210, 105, 30, 1), "chartreuse", A.SassColor$rgb(127, 255, 0, 1), "cadetblue", A.SassColor$rgb(95, 158, 160, 1), "burlywood", A.SassColor$rgb(222, 184, 135, 1), "brown", A.SassColor$rgb(165, 42, 42, 1), "blueviolet", A.SassColor$rgb(138, 43, 226, 1), "blue", A.SassColor$rgb(0, 0, 255, 1), "blanchedalmond", A.SassColor$rgb(255, 235, 205, 1), "black", A.SassColor$rgb(0, 0, 0, 1), "bisque", A.SassColor$rgb(255, 228, 196, 1), "beige", A.SassColor$rgb(245, 245, 220, 1), "azure", A.SassColor$rgb(240, 255, 255, 1), "aquamarine", A.SassColor$rgb(127, 255, 212, 1), "aqua", A.SassColor$rgb(0, 255, 255, 1), "antiquewhite", A.SassColor$rgb(250, 235, 215, 1), "aliceblue", A.SassColor$rgb(240, 248, 255, 1)], type$.String, type$.SassColor));
+    _lazyFinal($, "namesByColor", "$get$namesByColor", () => {
+      var $name,
+        t1 = type$.SassColor,
+        t2 = type$.String,
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      for (t1 = A.MapExtensions_get_pairs($.$get$colorsByName(), t2, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        $name = t2._0;
+        t3.$indexSet(0, t2._1, $name);
+      }
+      return t3;
+    });
+    _lazyFinal($, "ExecutableOptions__separatorBar", "$get$ExecutableOptions__separatorBar", () => A.isWindows() ? "=" : "\u2501");
+    _lazyFinal($, "ExecutableOptions__parser", "$get$ExecutableOptions__parser", () => new A.ExecutableOptions__parser_closure().call$0());
+    _lazyFinal($, "globalFunctions", "$get$globalFunctions", () => {
+      var t1 = type$.BuiltInCallable,
+        t2 = A.List_List$of($.$get$global0(), true, t1);
+      B.JSArray_methods.addAll$1(t2, $.$get$global1());
+      B.JSArray_methods.addAll$1(t2, $.$get$global2());
+      B.JSArray_methods.addAll$1(t2, $.$get$global3());
+      B.JSArray_methods.addAll$1(t2, $.$get$global4());
+      B.JSArray_methods.addAll$1(t2, $.$get$global5());
+      B.JSArray_methods.addAll$1(t2, $.$get$global());
+      t2.push(A.BuiltInCallable$function("if", "$condition, $if-true, $if-false", new A.globalFunctions_closure(), null));
+      return A.UnmodifiableListView$(t2, t1);
+    });
+    _lazyFinal($, "coreModules", "$get$coreModules", () => A.UnmodifiableListView$(A._setArrayType([$.$get$module(), $.$get$module0(), $.$get$module1(), $.$get$module2(), $.$get$module3(), $.$get$module4()], A.findType("JSArray<BuiltInModule<Callable0>>")), type$.BuiltInModule_Callable));
+    _lazyFinal($, "_microsoftFilterStart", "$get$_microsoftFilterStart", () => A.RegExp_RegExp("^[a-zA-Z]+\\s*=", false));
+    _lazyFinal($, "global", "$get$global0", () => {
+      var _s27_ = "$red, $green, $blue, $alpha",
+        _s19_ = "$red, $green, $blue",
+        _s37_ = "$hue, $saturation, $lightness, $alpha",
+        _s29_ = "$hue, $saturation, $lightness",
+        _s17_ = "$hue, $saturation",
+        _s15_ = "$color, $amount",
+        t1 = type$.String,
+        t2 = type$.Value_Function_List_Value;
+      return A.UnmodifiableListView$(A._setArrayType([$.$get$_red(), $.$get$_green(), $.$get$_blue(), $.$get$_mix(), A.BuiltInCallable$overloadedFunction("rgb", A.LinkedHashMap_LinkedHashMap$_literal([_s27_, new A.global_closure0(), _s19_, new A.global_closure1(), "$color, $alpha", new A.global_closure2(), "$channels", new A.global_closure3()], t1, t2)), A.BuiltInCallable$overloadedFunction("rgba", A.LinkedHashMap_LinkedHashMap$_literal([_s27_, new A.global_closure4(), _s19_, new A.global_closure5(), "$color, $alpha", new A.global_closure6(), "$channels", new A.global_closure7()], t1, t2)), A._function4("invert", "$color, $weight: 100%", new A.global_closure8()), $.$get$_hue(), $.$get$_saturation(), $.$get$_lightness(), $.$get$_complement(), A.BuiltInCallable$overloadedFunction("hsl", A.LinkedHashMap_LinkedHashMap$_literal([_s37_, new A.global_closure9(), _s29_, new A.global_closure10(), _s17_, new A.global_closure11(), "$channels", new A.global_closure12()], t1, t2)), A.BuiltInCallable$overloadedFunction("hsla", A.LinkedHashMap_LinkedHashMap$_literal([_s37_, new A.global_closure13(), _s29_, new A.global_closure14(), _s17_, new A.global_closure15(), "$channels", new A.global_closure16()], t1, t2)), A._function4("grayscale", "$color", new A.global_closure17()), A._function4("adjust-hue", "$color, $degrees", new A.global_closure18()), A._function4("lighten", _s15_, new A.global_closure19()), A._function4("darken", _s15_, new A.global_closure20()), A.BuiltInCallable$overloadedFunction("saturate", A.LinkedHashMap_LinkedHashMap$_literal(["$amount", new A.global_closure21(), "$color, $amount", new A.global_closure22()], t1, t2)), A._function4("desaturate", _s15_, new A.global_closure23()), A._function4("opacify", _s15_, A.color0___opacify$closure()), A._function4("fade-in", _s15_, A.color0___opacify$closure()), A._function4("transparentize", _s15_, A.color0___transparentize$closure()), A._function4("fade-out", _s15_, A.color0___transparentize$closure()), A.BuiltInCallable$overloadedFunction("alpha", A.LinkedHashMap_LinkedHashMap$_literal(["$color", new A.global_closure24(), "$args...", new A.global_closure25()], t1, t2)), A._function4("opacity", "$color", new A.global_closure26()), $.$get$_ieHexStr(), $.$get$_adjust().withName$1("adjust-color"), $.$get$_scale().withName$1("scale-color"), $.$get$_change().withName$1("change-color")], type$.JSArray_BuiltInCallable), type$.BuiltInCallable);
+    });
+    _lazyFinal($, "module", "$get$module", () => {
+      var _s9_ = "lightness",
+        _s10_ = "saturation",
+        _s6_ = "$color", _s5_ = "alpha",
+        t1 = type$.String,
+        t2 = type$.Value_Function_List_Value;
+      return A.BuiltInModule$("color", A._setArrayType([$.$get$_red(), $.$get$_green(), $.$get$_blue(), $.$get$_mix(), A._function4("invert", "$color, $weight: 100%", new A.module_closure1()), $.$get$_hue(), $.$get$_saturation(), $.$get$_lightness(), $.$get$_complement(), A._removedColorFunction("adjust-hue", "hue", false), A._removedColorFunction("lighten", _s9_, false), A._removedColorFunction("darken", _s9_, true), A._removedColorFunction("saturate", _s10_, false), A._removedColorFunction("desaturate", _s10_, true), A._function4("grayscale", _s6_, new A.module_closure2()), A.BuiltInCallable$overloadedFunction("hwb", A.LinkedHashMap_LinkedHashMap$_literal(["$hue, $whiteness, $blackness, $alpha: 1", new A.module_closure3(), "$channels", new A.module_closure4()], t1, t2)), A._function4("whiteness", _s6_, new A.module_closure5()), A._function4("blackness", _s6_, new A.module_closure6()), A._removedColorFunction("opacify", _s5_, false), A._removedColorFunction("fade-in", _s5_, false), A._removedColorFunction("transparentize", _s5_, true), A._removedColorFunction("fade-out", _s5_, true), A.BuiltInCallable$overloadedFunction(_s5_, A.LinkedHashMap_LinkedHashMap$_literal(["$color", new A.module_closure7(), "$args...", new A.module_closure8()], t1, t2)), A._function4("opacity", _s6_, new A.module_closure9()), $.$get$_adjust(), $.$get$_scale(), $.$get$_change(), $.$get$_ieHexStr()], type$.JSArray_Callable), null, null, type$.Callable);
+    });
+    _lazyFinal($, "_red", "$get$_red", () => A._function4("red", "$color", new A._red_closure()));
+    _lazyFinal($, "_green", "$get$_green", () => A._function4("green", "$color", new A._green_closure()));
+    _lazyFinal($, "_blue", "$get$_blue", () => A._function4("blue", "$color", new A._blue_closure()));
+    _lazyFinal($, "_mix", "$get$_mix", () => A._function4("mix", "$color1, $color2, $weight: 50%", new A._mix_closure()));
+    _lazyFinal($, "_hue", "$get$_hue", () => A._function4("hue", "$color", new A._hue_closure()));
+    _lazyFinal($, "_saturation", "$get$_saturation", () => A._function4("saturation", "$color", new A._saturation_closure()));
+    _lazyFinal($, "_lightness", "$get$_lightness", () => A._function4("lightness", "$color", new A._lightness_closure()));
+    _lazyFinal($, "_complement", "$get$_complement", () => A._function4("complement", "$color", new A._complement_closure()));
+    _lazyFinal($, "_adjust", "$get$_adjust", () => A._function4("adjust", "$color, $kwargs...", new A._adjust_closure()));
+    _lazyFinal($, "_scale", "$get$_scale", () => A._function4("scale", "$color, $kwargs...", new A._scale_closure()));
+    _lazyFinal($, "_change", "$get$_change", () => A._function4("change", "$color, $kwargs...", new A._change_closure()));
+    _lazyFinal($, "_ieHexStr", "$get$_ieHexStr", () => A._function4("ie-hex-str", "$color", new A._ieHexStr_closure()));
+    _lazyFinal($, "global0", "$get$global1", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_length0(), $.$get$_nth(), $.$get$_setNth(), $.$get$_join(), $.$get$_append0(), $.$get$_zip(), $.$get$_index0(), $.$get$_isBracketed(), $.$get$_separator().withName$1("list-separator")], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "module0", "$get$module0", () => A.BuiltInModule$("list", A._setArrayType([$.$get$_length0(), $.$get$_nth(), $.$get$_setNth(), $.$get$_join(), $.$get$_append0(), $.$get$_zip(), $.$get$_index0(), $.$get$_isBracketed(), $.$get$_separator(), $.$get$_slash()], type$.JSArray_Callable), null, null, type$.Callable));
+    _lazyFinal($, "_length", "$get$_length0", () => A._function3("length", "$list", new A._length_closure0()));
+    _lazyFinal($, "_nth", "$get$_nth", () => A._function3("nth", "$list, $n", new A._nth_closure()));
+    _lazyFinal($, "_setNth", "$get$_setNth", () => A._function3("set-nth", "$list, $n, $value", new A._setNth_closure()));
+    _lazyFinal($, "_join", "$get$_join", () => A._function3("join", string$.x24list1, new A._join_closure()));
+    _lazyFinal($, "_append", "$get$_append0", () => A._function3("append", "$list, $val, $separator: auto", new A._append_closure0()));
+    _lazyFinal($, "_zip", "$get$_zip", () => A._function3("zip", "$lists...", new A._zip_closure()));
+    _lazyFinal($, "_index", "$get$_index0", () => A._function3("index", "$list, $value", new A._index_closure0()));
+    _lazyFinal($, "_separator", "$get$_separator", () => A._function3("separator", "$list", new A._separator_closure()));
+    _lazyFinal($, "_isBracketed", "$get$_isBracketed", () => A._function3("is-bracketed", "$list", new A._isBracketed_closure()));
+    _lazyFinal($, "_slash", "$get$_slash", () => A._function3("slash", "$elements...", new A._slash_closure()));
+    _lazyFinal($, "global1", "$get$global2", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_get().withName$1("map-get"), $.$get$_merge().withName$1("map-merge"), $.$get$_remove().withName$1("map-remove"), $.$get$_keys().withName$1("map-keys"), $.$get$_values().withName$1("map-values"), $.$get$_hasKey().withName$1("map-has-key")], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "module1", "$get$module1", () => A.BuiltInModule$("map", A._setArrayType([$.$get$_get(), $.$get$_set(), $.$get$_merge(), $.$get$_remove(), $.$get$_keys(), $.$get$_values(), $.$get$_hasKey(), $.$get$_deepMerge(), $.$get$_deepRemove()], type$.JSArray_Callable), null, null, type$.Callable));
+    _lazyFinal($, "_get", "$get$_get", () => A._function2("get", "$map, $key, $keys...", new A._get_closure()));
+    _lazyFinal($, "_set", "$get$_set", () => A.BuiltInCallable$overloadedFunction("set", A.LinkedHashMap_LinkedHashMap$_literal(["$map, $key, $value", new A._set_closure(), "$map, $args...", new A._set_closure0()], type$.String, type$.Value_Function_List_Value)));
+    _lazyFinal($, "_merge", "$get$_merge", () => A.BuiltInCallable$overloadedFunction("merge", A.LinkedHashMap_LinkedHashMap$_literal(["$map1, $map2", new A._merge_closure(), "$map1, $args...", new A._merge_closure0()], type$.String, type$.Value_Function_List_Value)));
+    _lazyFinal($, "_deepMerge", "$get$_deepMerge", () => A._function2("deep-merge", "$map1, $map2", new A._deepMerge_closure()));
+    _lazyFinal($, "_deepRemove", "$get$_deepRemove", () => A._function2("deep-remove", "$map, $key, $keys...", new A._deepRemove_closure()));
+    _lazyFinal($, "_remove", "$get$_remove", () => A.BuiltInCallable$overloadedFunction("remove", A.LinkedHashMap_LinkedHashMap$_literal(["$map", new A._remove_closure(), "$map, $key, $keys...", new A._remove_closure0()], type$.String, type$.Value_Function_List_Value)));
+    _lazyFinal($, "_keys", "$get$_keys", () => A._function2("keys", "$map", new A._keys_closure()));
+    _lazyFinal($, "_values", "$get$_values", () => A._function2("values", "$map", new A._values_closure()));
+    _lazyFinal($, "_hasKey", "$get$_hasKey", () => A._function2("has-key", "$map, $key, $keys...", new A._hasKey_closure()));
+    _lazyFinal($, "global2", "$get$global3", () => A.UnmodifiableListView$(A._setArrayType([A._function1("abs", "$number", new A.global_closure()), $.$get$_ceil(), $.$get$_floor(), $.$get$_max(), $.$get$_min(), $.$get$_percentage(), $.$get$_randomFunction(), $.$get$_round(), $.$get$_unit(), $.$get$_compatible().withName$1("comparable"), $.$get$_isUnitless().withName$1("unitless")], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "module2", "$get$module2", () => {
+      var _null = null;
+      return A.BuiltInModule$("math", A._setArrayType([A._numberFunction("abs", new A.module_closure0()), $.$get$_acos(), $.$get$_asin(), $.$get$_atan(), $.$get$_atan2(), $.$get$_ceil(), $.$get$_clamp(), $.$get$_cos(), $.$get$_compatible(), $.$get$_floor(), $.$get$_hypot(), $.$get$_isUnitless(), $.$get$_log(), $.$get$_max(), $.$get$_min(), $.$get$_percentage(), $.$get$_pow(), $.$get$_randomFunction(), $.$get$_round(), $.$get$_sin(), $.$get$_sqrt(), $.$get$_tan(), $.$get$_unit(), $.$get$_div()], type$.JSArray_Callable), _null, A.LinkedHashMap_LinkedHashMap$_literal(["e", A.SassNumber_SassNumber(2.718281828459045, _null), "pi", A.SassNumber_SassNumber(3.141592653589793, _null), "epsilon", A.SassNumber_SassNumber(2220446049250313e-31, _null), "max-safe-integer", A.SassNumber_SassNumber(9007199254740991, _null), "min-safe-integer", A.SassNumber_SassNumber(-9007199254740991, _null), "max-number", A.SassNumber_SassNumber(17976931348623157e292, _null), "min-number", A.SassNumber_SassNumber(5e-324, _null)], type$.String, type$.Value), type$.Callable);
+    });
+    _lazyFinal($, "_ceil", "$get$_ceil", () => A._numberFunction("ceil", new A._ceil_closure()));
+    _lazyFinal($, "_clamp", "$get$_clamp", () => A._function1("clamp", "$min, $number, $max", new A._clamp_closure()));
+    _lazyFinal($, "_floor", "$get$_floor", () => A._numberFunction("floor", new A._floor_closure()));
+    _lazyFinal($, "_max", "$get$_max", () => A._function1("max", "$numbers...", new A._max_closure()));
+    _lazyFinal($, "_min", "$get$_min", () => A._function1("min", "$numbers...", new A._min_closure()));
+    _lazyFinal($, "_round", "$get$_round", () => A._numberFunction("round", new A._round_closure()));
+    _lazyFinal($, "_hypot", "$get$_hypot", () => A._function1("hypot", "$numbers...", new A._hypot_closure()));
+    _lazyFinal($, "_log", "$get$_log", () => A._function1("log", "$number, $base: null", new A._log_closure()));
+    _lazyFinal($, "_pow", "$get$_pow", () => A._function1("pow", "$base, $exponent", new A._pow_closure()));
+    _lazyFinal($, "_sqrt", "$get$_sqrt", () => A._singleArgumentMathFunc("sqrt", A.number0__sqrt$closure()));
+    _lazyFinal($, "_acos", "$get$_acos", () => A._singleArgumentMathFunc("acos", A.number0__acos$closure()));
+    _lazyFinal($, "_asin", "$get$_asin", () => A._singleArgumentMathFunc("asin", A.number0__asin$closure()));
+    _lazyFinal($, "_atan", "$get$_atan", () => A._singleArgumentMathFunc("atan", A.number0__atan$closure()));
+    _lazyFinal($, "_atan2", "$get$_atan2", () => A._function1("atan2", "$y, $x", new A._atan2_closure()));
+    _lazyFinal($, "_cos", "$get$_cos", () => A._singleArgumentMathFunc("cos", A.number0__cos$closure()));
+    _lazyFinal($, "_sin", "$get$_sin", () => A._singleArgumentMathFunc("sin", A.number0__sin$closure()));
+    _lazyFinal($, "_tan", "$get$_tan", () => A._singleArgumentMathFunc("tan", A.number0__tan$closure()));
+    _lazyFinal($, "_compatible", "$get$_compatible", () => A._function1("compatible", "$number1, $number2", new A._compatible_closure()));
+    _lazyFinal($, "_isUnitless", "$get$_isUnitless", () => A._function1("is-unitless", "$number", new A._isUnitless_closure()));
+    _lazyFinal($, "_unit", "$get$_unit", () => A._function1("unit", "$number", new A._unit_closure()));
+    _lazyFinal($, "_percentage", "$get$_percentage", () => A._function1("percentage", "$number", new A._percentage_closure()));
+    _lazyFinal($, "_random", "$get$_random0", () => A.Random_Random());
+    _lazyFinal($, "_randomFunction", "$get$_randomFunction", () => A._function1("random", "$limit: null", new A._randomFunction_closure()));
+    _lazyFinal($, "_div", "$get$_div", () => A._function1("div", "$number1, $number2", new A._div_closure()));
+    _lazyFinal($, "global3", "$get$global", () => A.UnmodifiableListView$(A._setArrayType([A._function5("feature-exists", "$feature", new A.global_closure27()), A._function5("inspect", "$value", new A.global_closure28()), A._function5("type-of", "$value", new A.global_closure29()), A._function5("keywords", "$args", new A.global_closure30())], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "local", "$get$local", () => A.UnmodifiableListView$(A._setArrayType([A._function5("calc-name", "$calc", new A.local_closure()), A._function5("calc-args", "$calc", new A.local_closure0()), A._function5("accepts-content", "$mixin", new A.local_closure1())], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "global4", "$get$global4", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_isSuperselector(), $.$get$_simpleSelectors(), $.$get$_parse().withName$1("selector-parse"), $.$get$_nest().withName$1("selector-nest"), $.$get$_append().withName$1("selector-append"), $.$get$_extend().withName$1("selector-extend"), $.$get$_replace().withName$1("selector-replace"), $.$get$_unify().withName$1("selector-unify")], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "module3", "$get$module3", () => A.BuiltInModule$("selector", A._setArrayType([$.$get$_isSuperselector(), $.$get$_simpleSelectors(), $.$get$_parse(), $.$get$_nest(), $.$get$_append(), $.$get$_extend(), $.$get$_replace(), $.$get$_unify()], type$.JSArray_Callable), null, null, type$.Callable));
+    _lazyFinal($, "_nest", "$get$_nest", () => A._function0("nest", "$selectors...", new A._nest_closure()));
+    _lazyFinal($, "_append0", "$get$_append", () => A._function0("append", "$selectors...", new A._append_closure()));
+    _lazyFinal($, "_extend", "$get$_extend", () => A._function0("extend", "$selector, $extendee, $extender", new A._extend_closure()));
+    _lazyFinal($, "_replace", "$get$_replace", () => A._function0("replace", "$selector, $original, $replacement", new A._replace_closure()));
+    _lazyFinal($, "_unify", "$get$_unify", () => A._function0("unify", "$selector1, $selector2", new A._unify_closure()));
+    _lazyFinal($, "_isSuperselector", "$get$_isSuperselector", () => A._function0("is-superselector", "$super, $sub", new A._isSuperselector_closure()));
+    _lazyFinal($, "_simpleSelectors", "$get$_simpleSelectors", () => A._function0("simple-selectors", "$selector", new A._simpleSelectors_closure()));
+    _lazyFinal($, "_parse", "$get$_parse", () => A._function0("parse", "$selector", new A._parse_closure()));
+    _lazyFinal($, "_random0", "$get$_random", () => A.Random_Random());
+    _lazy($, "_previousUniqueId", "$get$_previousUniqueId", () => $.$get$_random().nextInt$1(A._asInt(A.pow(36, 6))));
+    _lazyFinal($, "global5", "$get$global5", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_unquote(), $.$get$_quote(), $.$get$_toUpperCase(), $.$get$_toLowerCase(), $.$get$_uniqueId(), $.$get$_length().withName$1("str-length"), $.$get$_insert().withName$1("str-insert"), $.$get$_index().withName$1("str-index"), $.$get$_slice().withName$1("str-slice")], type$.JSArray_BuiltInCallable), type$.BuiltInCallable));
+    _lazyFinal($, "module4", "$get$module4", () => A.BuiltInModule$("string", A._setArrayType([$.$get$_unquote(), $.$get$_quote(), $.$get$_toUpperCase(), $.$get$_toLowerCase(), $.$get$_length(), $.$get$_insert(), $.$get$_index(), $.$get$_slice(), $.$get$_uniqueId(), A._function("split", "$string, $separator, $limit: null", new A.module_closure())], type$.JSArray_Callable), null, null, type$.Callable));
+    _lazyFinal($, "_unquote", "$get$_unquote", () => A._function("unquote", "$string", new A._unquote_closure()));
+    _lazyFinal($, "_quote", "$get$_quote", () => A._function("quote", "$string", new A._quote_closure()));
+    _lazyFinal($, "_length0", "$get$_length", () => A._function("length", "$string", new A._length_closure()));
+    _lazyFinal($, "_insert", "$get$_insert", () => A._function("insert", "$string, $insert, $index", new A._insert_closure()));
+    _lazyFinal($, "_index0", "$get$_index", () => A._function("index", "$string, $substring", new A._index_closure()));
+    _lazyFinal($, "_slice", "$get$_slice", () => A._function("slice", "$string, $start-at, $end-at: -1", new A._slice_closure()));
+    _lazyFinal($, "_toUpperCase", "$get$_toUpperCase", () => A._function("to-upper-case", "$string", new A._toUpperCase_closure()));
+    _lazyFinal($, "_toLowerCase", "$get$_toLowerCase", () => A._function("to-lower-case", "$string", new A._toLowerCase_closure()));
+    _lazyFinal($, "_uniqueId", "$get$_uniqueId", () => A._function("unique-id", "", new A._uniqueId_closure()));
+    _lazyFinal($, "FilesystemImporter_cwd", "$get$FilesystemImporter_cwd", () => {
+      var _null = null;
+      return new A.FilesystemImporter(A.absolute(".", _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), true);
+    });
+    _lazyFinal($, "FilesystemImporter_noLoadPath", "$get$FilesystemImporter_noLoadPath", () => new A.FilesystemImporter(null, false));
+    _lazyFinal($, "_jsThrow", "$get$_jsThrow0", () => new self.Function("error", "throw error;"));
+    _lazyFinal($, "Logger_quiet", "$get$Logger_quiet", () => new A._QuietLogger());
+    _lazyFinal($, "_disallowedFunctionNames", "$get$_disallowedFunctionNames", () => {
+      var t1 = $.$get$globalFunctions();
+      t1 = t1.map$1$1(t1, new A._disallowedFunctionNames_closure(), type$.String).toSet$0(0);
+      t1.add$1(0, "if");
+      t1.remove$1(0, "rgb");
+      t1.remove$1(0, "rgba");
+      t1.remove$1(0, "hsl");
+      t1.remove$1(0, "hsla");
+      t1.remove$1(0, "grayscale");
+      t1.remove$1(0, "invert");
+      t1.remove$1(0, "alpha");
+      t1.remove$1(0, "opacity");
+      t1.remove$1(0, "saturate");
+      t1.remove$1(0, "min");
+      t1.remove$1(0, "max");
+      t1.remove$1(0, "round");
+      t1.remove$1(0, "abs");
+      return t1;
+    });
+    _lazyFinal($, "_epsilon", "$get$_epsilon", () => A.pow(10, -11));
+    _lazyFinal($, "_inverseEpsilon", "$get$_inverseEpsilon", () => A.pow(10, 11));
+    _lazyFinal($, "bogusSpan", "$get$bogusSpan", () => A.SourceFile$decoded(A._setArrayType([], type$.JSArray_int), null).span$1(0, 0));
+    _lazyFinal($, "_noSourceUrl", "$get$_noSourceUrl", () => A.Uri_parse("-"));
+    _lazyFinal($, "_traces", "$get$_traces", () => A.Expando$());
+    _lazyFinal($, "_typesByUnit", "$get$_typesByUnit", () => {
+      var t3, type,
+        t1 = type$.String,
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t1 = A.MapExtensions_get_pairs(B.Map_397RH, t1, type$.List_String), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        type = t3._0;
+        for (t3 = J.get$iterator$ax(t3._1); t3.moveNext$0();)
+          t2.$indexSet(0, t3.get$current(t3), type);
+      }
+      return t2;
+    });
+    _lazyFinal($, "_knownCompatibilitiesByUnit", "$get$_knownCompatibilitiesByUnit", () => {
+      var _i, set, t2,
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, A.findType("Set<String>"));
+      for (_i = 0; _i < 5; ++_i) {
+        set = B.List_Eeh[_i];
+        for (t2 = set.get$iterator(set); t2.moveNext$0();)
+          t1.$indexSet(0, t2.get$current(0), set);
+      }
+      return t1;
+    });
+    _lazyFinal($, "_emptyQuoted", "$get$_emptyQuoted", () => A.SassString$("", true));
+    _lazyFinal($, "_emptyUnquoted", "$get$_emptyUnquoted", () => A.SassString$("", false));
+    _lazyFinal($, "maxInt32", "$get$maxInt32", () => A._asInt(A.pow(2, 31)) - 1);
+    _lazyFinal($, "minInt32", "$get$minInt32", () => -A._asInt(A.pow(2, 31)));
+    _lazyFinal($, "_vmFrame", "$get$_vmFrame", () => A.RegExp_RegExp("^#\\d+\\s+(\\S.*) \\((.+?)((?::\\d+){0,2})\\)$", false));
+    _lazyFinal($, "_v8Frame", "$get$_v8Frame", () => A.RegExp_RegExp("^\\s*at (?:(\\S.*?)(?: \\[as [^\\]]+\\])? \\((.*)\\)|(.*))$", false));
+    _lazyFinal($, "_v8UrlLocation", "$get$_v8UrlLocation", () => A.RegExp_RegExp("^(.*?):(\\d+)(?::(\\d+))?$|native$", false));
+    _lazyFinal($, "_v8EvalLocation", "$get$_v8EvalLocation", () => A.RegExp_RegExp("^eval at (?:\\S.*?) \\((.*)\\)(?:, .*?:\\d+:\\d+)?$", false));
+    _lazyFinal($, "_firefoxEvalLocation", "$get$_firefoxEvalLocation", () => A.RegExp_RegExp("(\\S+)@(\\S+) line (\\d+) >.* (Function|eval):\\d+:\\d+", false));
+    _lazyFinal($, "_firefoxSafariFrame", "$get$_firefoxSafariFrame", () => A.RegExp_RegExp("^(?:([^@(/]*)(?:\\(.*\\))?((?:/[^/]*)*)(?:\\(.*\\))?@)?(.*?):(\\d*)(?::(\\d*))?$", false));
+    _lazyFinal($, "_friendlyFrame", "$get$_friendlyFrame", () => A.RegExp_RegExp("^(\\S+)(?: (\\d+)(?::(\\d+))?)?\\s+([^\\d].*)$", false));
+    _lazyFinal($, "_asyncBody", "$get$_asyncBody", () => A.RegExp_RegExp("<(<anonymous closure>|[^>]+)_async_body>", false));
+    _lazyFinal($, "_initialDot", "$get$_initialDot", () => A.RegExp_RegExp("^\\.", false));
+    _lazyFinal($, "Frame__uriRegExp", "$get$Frame__uriRegExp", () => A.RegExp_RegExp("^[a-zA-Z][-+.a-zA-Z\\d]*://", false));
+    _lazyFinal($, "Frame__windowsRegExp", "$get$Frame__windowsRegExp", () => A.RegExp_RegExp("^([a-zA-Z]:[\\\\/]|\\\\\\\\)", false));
+    _lazyFinal($, "_terseRegExp", "$get$_terseRegExp", () => A.RegExp_RegExp("(-patch)?([/\\\\].*)?$", false));
+    _lazyFinal($, "_v8Trace", "$get$_v8Trace", () => A.RegExp_RegExp("\\n    ?at ", false));
+    _lazyFinal($, "_v8TraceLine", "$get$_v8TraceLine", () => A.RegExp_RegExp("    ?at ", false));
+    _lazyFinal($, "_firefoxEvalTrace", "$get$_firefoxEvalTrace", () => A.RegExp_RegExp("@\\S+ line \\d+ >.* (Function|eval):\\d+:\\d+", false));
+    _lazyFinal($, "_firefoxSafariTrace", "$get$_firefoxSafariTrace", () => A.RegExp_RegExp("^(([.0-9A-Za-z_$/<]|\\(.*\\))*@)?[^\\s]*:\\d*$", true));
+    _lazyFinal($, "_friendlyTrace", "$get$_friendlyTrace", () => A.RegExp_RegExp("^[^\\s<][^\\s]*( \\d+(:\\d+)?)?[ \\t]+[^\\s]+$", true));
+    _lazyFinal($, "vmChainGap", "$get$vmChainGap", () => A.RegExp_RegExp("^<asynchronous suspension>\\n?$", true));
+    _lazyFinal($, "_newlineRegExp", "$get$_newlineRegExp", () => A.RegExp_RegExp("\\r\\n?|\\n", false));
+    _lazyFinal($, "argumentListClass", "$get$argumentListClass", () => new A.argumentListClass_closure().call$0());
+    _lazyFinal($, "booleanClass", "$get$booleanClass", () => new A.booleanClass_closure().call$0());
+    _lazyFinal($, "legacyBooleanClass", "$get$legacyBooleanClass", () => new A.legacyBooleanClass_closure().call$0());
+    _lazyFinal($, "calculationClass", "$get$calculationClass", () => new A.calculationClass_closure().call$0());
+    _lazyFinal($, "calculationOperationClass", "$get$calculationOperationClass", () => new A.calculationOperationClass_closure().call$0());
+    _lazyFinal($, "calculationInterpolationClass", "$get$calculationInterpolationClass", () => new A.calculationInterpolationClass_closure().call$0());
+    _lazyFinal($, "_microsoftFilterStart0", "$get$_microsoftFilterStart0", () => A.RegExp_RegExp("^[a-zA-Z]+\\s*=", false));
+    _lazyFinal($, "global6", "$get$global7", () => {
+      var _s27_ = "$red, $green, $blue, $alpha",
+        _s19_ = "$red, $green, $blue",
+        _s37_ = "$hue, $saturation, $lightness, $alpha",
+        _s29_ = "$hue, $saturation, $lightness",
+        _s17_ = "$hue, $saturation",
+        _s15_ = "$color, $amount",
+        t1 = type$.String,
+        t2 = type$.Value_Function_List_Value_2;
+      return A.UnmodifiableListView$(A._setArrayType([$.$get$_red0(), $.$get$_green0(), $.$get$_blue0(), $.$get$_mix0(), A.BuiltInCallable$overloadedFunction0("rgb", A.LinkedHashMap_LinkedHashMap$_literal([_s27_, new A.global_closure32(), _s19_, new A.global_closure33(), "$color, $alpha", new A.global_closure34(), "$channels", new A.global_closure35()], t1, t2)), A.BuiltInCallable$overloadedFunction0("rgba", A.LinkedHashMap_LinkedHashMap$_literal([_s27_, new A.global_closure36(), _s19_, new A.global_closure37(), "$color, $alpha", new A.global_closure38(), "$channels", new A.global_closure39()], t1, t2)), A._function11("invert", "$color, $weight: 100%", new A.global_closure40()), $.$get$_hue0(), $.$get$_saturation0(), $.$get$_lightness0(), $.$get$_complement0(), A.BuiltInCallable$overloadedFunction0("hsl", A.LinkedHashMap_LinkedHashMap$_literal([_s37_, new A.global_closure41(), _s29_, new A.global_closure42(), _s17_, new A.global_closure43(), "$channels", new A.global_closure44()], t1, t2)), A.BuiltInCallable$overloadedFunction0("hsla", A.LinkedHashMap_LinkedHashMap$_literal([_s37_, new A.global_closure45(), _s29_, new A.global_closure46(), _s17_, new A.global_closure47(), "$channels", new A.global_closure48()], t1, t2)), A._function11("grayscale", "$color", new A.global_closure49()), A._function11("adjust-hue", "$color, $degrees", new A.global_closure50()), A._function11("lighten", _s15_, new A.global_closure51()), A._function11("darken", _s15_, new A.global_closure52()), A.BuiltInCallable$overloadedFunction0("saturate", A.LinkedHashMap_LinkedHashMap$_literal(["$amount", new A.global_closure53(), "$color, $amount", new A.global_closure54()], t1, t2)), A._function11("desaturate", _s15_, new A.global_closure55()), A._function11("opacify", _s15_, A.color2___opacify$closure()), A._function11("fade-in", _s15_, A.color2___opacify$closure()), A._function11("transparentize", _s15_, A.color2___transparentize$closure()), A._function11("fade-out", _s15_, A.color2___transparentize$closure()), A.BuiltInCallable$overloadedFunction0("alpha", A.LinkedHashMap_LinkedHashMap$_literal(["$color", new A.global_closure56(), "$args...", new A.global_closure57()], t1, t2)), A._function11("opacity", "$color", new A.global_closure58()), $.$get$_ieHexStr0(), $.$get$_adjust0().withName$1("adjust-color"), $.$get$_scale0().withName$1("scale-color"), $.$get$_change0().withName$1("change-color")], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2);
+    });
+    _lazyFinal($, "module5", "$get$module5", () => {
+      var _s9_ = "lightness",
+        _s10_ = "saturation",
+        _s6_ = "$color", _s5_ = "alpha",
+        t1 = type$.String,
+        t2 = type$.Value_Function_List_Value_2;
+      return A.BuiltInModule$0("color", A._setArrayType([$.$get$_red0(), $.$get$_green0(), $.$get$_blue0(), $.$get$_mix0(), A._function11("invert", "$color, $weight: 100%", new A.module_closure12()), $.$get$_hue0(), $.$get$_saturation0(), $.$get$_lightness0(), $.$get$_complement0(), A._removedColorFunction0("adjust-hue", "hue", false), A._removedColorFunction0("lighten", _s9_, false), A._removedColorFunction0("darken", _s9_, true), A._removedColorFunction0("saturate", _s10_, false), A._removedColorFunction0("desaturate", _s10_, true), A._function11("grayscale", _s6_, new A.module_closure13()), A.BuiltInCallable$overloadedFunction0("hwb", A.LinkedHashMap_LinkedHashMap$_literal(["$hue, $whiteness, $blackness, $alpha: 1", new A.module_closure14(), "$channels", new A.module_closure15()], t1, t2)), A._function11("whiteness", _s6_, new A.module_closure16()), A._function11("blackness", _s6_, new A.module_closure17()), A._removedColorFunction0("opacify", _s5_, false), A._removedColorFunction0("fade-in", _s5_, false), A._removedColorFunction0("transparentize", _s5_, true), A._removedColorFunction0("fade-out", _s5_, true), A.BuiltInCallable$overloadedFunction0(_s5_, A.LinkedHashMap_LinkedHashMap$_literal(["$color", new A.module_closure18(), "$args...", new A.module_closure19()], t1, t2)), A._function11("opacity", _s6_, new A.module_closure20()), $.$get$_adjust0(), $.$get$_scale0(), $.$get$_change0(), $.$get$_ieHexStr0()], type$.JSArray_Callable_2), null, null, type$.Callable_2);
+    });
+    _lazyFinal($, "_red0", "$get$_red0", () => A._function11("red", "$color", new A._red_closure0()));
+    _lazyFinal($, "_green0", "$get$_green0", () => A._function11("green", "$color", new A._green_closure0()));
+    _lazyFinal($, "_blue0", "$get$_blue0", () => A._function11("blue", "$color", new A._blue_closure0()));
+    _lazyFinal($, "_mix0", "$get$_mix0", () => A._function11("mix", "$color1, $color2, $weight: 50%", new A._mix_closure0()));
+    _lazyFinal($, "_hue0", "$get$_hue0", () => A._function11("hue", "$color", new A._hue_closure0()));
+    _lazyFinal($, "_saturation0", "$get$_saturation0", () => A._function11("saturation", "$color", new A._saturation_closure0()));
+    _lazyFinal($, "_lightness0", "$get$_lightness0", () => A._function11("lightness", "$color", new A._lightness_closure0()));
+    _lazyFinal($, "_complement0", "$get$_complement0", () => A._function11("complement", "$color", new A._complement_closure0()));
+    _lazyFinal($, "_adjust0", "$get$_adjust0", () => A._function11("adjust", "$color, $kwargs...", new A._adjust_closure0()));
+    _lazyFinal($, "_scale0", "$get$_scale0", () => A._function11("scale", "$color, $kwargs...", new A._scale_closure0()));
+    _lazyFinal($, "_change0", "$get$_change0", () => A._function11("change", "$color, $kwargs...", new A._change_closure0()));
+    _lazyFinal($, "_ieHexStr0", "$get$_ieHexStr0", () => A._function11("ie-hex-str", "$color", new A._ieHexStr_closure0()));
+    _lazyFinal($, "colorClass", "$get$colorClass", () => new A.colorClass_closure().call$0());
+    _lazyFinal($, "legacyColorClass", "$get$legacyColorClass", () => {
+      var t1 = A.createJSClass("sass.types.Color", new A.legacyColorClass_closure());
+      A.JSClassExtension_defineMethods(t1, A.LinkedHashMap_LinkedHashMap$_literal(["getR", new A.legacyColorClass_closure0(), "getG", new A.legacyColorClass_closure1(), "getB", new A.legacyColorClass_closure2(), "getA", new A.legacyColorClass_closure3(), "setR", new A.legacyColorClass_closure4(), "setG", new A.legacyColorClass_closure5(), "setB", new A.legacyColorClass_closure6(), "setA", new A.legacyColorClass_closure7()], type$.String, type$.Function));
+      return t1;
+    });
+    _lazyFinal($, "colorsByName0", "$get$colorsByName0", () => A.LinkedHashMap_LinkedHashMap$_literal(["yellowgreen", A.SassColor$rgb0(154, 205, 50, 1), "yellow", A.SassColor$rgb0(255, 255, 0, 1), "whitesmoke", A.SassColor$rgb0(245, 245, 245, 1), "white", A.SassColor$rgb0(255, 255, 255, 1), "wheat", A.SassColor$rgb0(245, 222, 179, 1), "violet", A.SassColor$rgb0(238, 130, 238, 1), "turquoise", A.SassColor$rgb0(64, 224, 208, 1), "transparent", A.SassColor$rgb0(0, 0, 0, 0), "tomato", A.SassColor$rgb0(255, 99, 71, 1), "thistle", A.SassColor$rgb0(216, 191, 216, 1), "teal", A.SassColor$rgb0(0, 128, 128, 1), "tan", A.SassColor$rgb0(210, 180, 140, 1), "steelblue", A.SassColor$rgb0(70, 130, 180, 1), "springgreen", A.SassColor$rgb0(0, 255, 127, 1), "snow", A.SassColor$rgb0(255, 250, 250, 1), "slategrey", A.SassColor$rgb0(112, 128, 144, 1), "slategray", A.SassColor$rgb0(112, 128, 144, 1), "slateblue", A.SassColor$rgb0(106, 90, 205, 1), "skyblue", A.SassColor$rgb0(135, 206, 235, 1), "silver", A.SassColor$rgb0(192, 192, 192, 1), "sienna", A.SassColor$rgb0(160, 82, 45, 1), "seashell", A.SassColor$rgb0(255, 245, 238, 1), "seagreen", A.SassColor$rgb0(46, 139, 87, 1), "sandybrown", A.SassColor$rgb0(244, 164, 96, 1), "salmon", A.SassColor$rgb0(250, 128, 114, 1), "saddlebrown", A.SassColor$rgb0(139, 69, 19, 1), "royalblue", A.SassColor$rgb0(65, 105, 225, 1), "rosybrown", A.SassColor$rgb0(188, 143, 143, 1), "red", A.SassColor$rgb0(255, 0, 0, 1), "rebeccapurple", A.SassColor$rgb0(102, 51, 153, 1), "purple", A.SassColor$rgb0(128, 0, 128, 1), "powderblue", A.SassColor$rgb0(176, 224, 230, 1), "plum", A.SassColor$rgb0(221, 160, 221, 1), "pink", A.SassColor$rgb0(255, 192, 203, 1), "peru", A.SassColor$rgb0(205, 133, 63, 1), "peachpuff", A.SassColor$rgb0(255, 218, 185, 1), "papayawhip", A.SassColor$rgb0(255, 239, 213, 1), "palevioletred", A.SassColor$rgb0(219, 112, 147, 1), "paleturquoise", A.SassColor$rgb0(175, 238, 238, 1), "palegreen", A.SassColor$rgb0(152, 251, 152, 1), "palegoldenrod", A.SassColor$rgb0(238, 232, 170, 1), "orchid", A.SassColor$rgb0(218, 112, 214, 1), "orangered", A.SassColor$rgb0(255, 69, 0, 1), "orange", A.SassColor$rgb0(255, 165, 0, 1), "olivedrab", A.SassColor$rgb0(107, 142, 35, 1), "olive", A.SassColor$rgb0(128, 128, 0, 1), "oldlace", A.SassColor$rgb0(253, 245, 230, 1), "navy", A.SassColor$rgb0(0, 0, 128, 1), "navajowhite", A.SassColor$rgb0(255, 222, 173, 1), "moccasin", A.SassColor$rgb0(255, 228, 181, 1), "mistyrose", A.SassColor$rgb0(255, 228, 225, 1), "mintcream", A.SassColor$rgb0(245, 255, 250, 1), "midnightblue", A.SassColor$rgb0(25, 25, 112, 1), "mediumvioletred", A.SassColor$rgb0(199, 21, 133, 1), "mediumturquoise", A.SassColor$rgb0(72, 209, 204, 1), "mediumspringgreen", A.SassColor$rgb0(0, 250, 154, 1), "mediumslateblue", A.SassColor$rgb0(123, 104, 238, 1), "mediumseagreen", A.SassColor$rgb0(60, 179, 113, 1), "mediumpurple", A.SassColor$rgb0(147, 112, 219, 1), "mediumorchid", A.SassColor$rgb0(186, 85, 211, 1), "mediumblue", A.SassColor$rgb0(0, 0, 205, 1), "mediumaquamarine", A.SassColor$rgb0(102, 205, 170, 1), "maroon", A.SassColor$rgb0(128, 0, 0, 1), "magenta", A.SassColor$rgb0(255, 0, 255, 1), "linen", A.SassColor$rgb0(250, 240, 230, 1), "limegreen", A.SassColor$rgb0(50, 205, 50, 1), "lime", A.SassColor$rgb0(0, 255, 0, 1), "lightyellow", A.SassColor$rgb0(255, 255, 224, 1), "lightsteelblue", A.SassColor$rgb0(176, 196, 222, 1), "lightslategrey", A.SassColor$rgb0(119, 136, 153, 1), "lightslategray", A.SassColor$rgb0(119, 136, 153, 1), "lightskyblue", A.SassColor$rgb0(135, 206, 250, 1), "lightseagreen", A.SassColor$rgb0(32, 178, 170, 1), "lightsalmon", A.SassColor$rgb0(255, 160, 122, 1), "lightpink", A.SassColor$rgb0(255, 182, 193, 1), "lightgrey", A.SassColor$rgb0(211, 211, 211, 1), "lightgreen", A.SassColor$rgb0(144, 238, 144, 1), "lightgray", A.SassColor$rgb0(211, 211, 211, 1), "lightgoldenrodyellow", A.SassColor$rgb0(250, 250, 210, 1), "lightcyan", A.SassColor$rgb0(224, 255, 255, 1), "lightcoral", A.SassColor$rgb0(240, 128, 128, 1), "lightblue", A.SassColor$rgb0(173, 216, 230, 1), "lemonchiffon", A.SassColor$rgb0(255, 250, 205, 1), "lawngreen", A.SassColor$rgb0(124, 252, 0, 1), "lavenderblush", A.SassColor$rgb0(255, 240, 245, 1), "lavender", A.SassColor$rgb0(230, 230, 250, 1), "khaki", A.SassColor$rgb0(240, 230, 140, 1), "ivory", A.SassColor$rgb0(255, 255, 240, 1), "indigo", A.SassColor$rgb0(75, 0, 130, 1), "indianred", A.SassColor$rgb0(205, 92, 92, 1), "hotpink", A.SassColor$rgb0(255, 105, 180, 1), "honeydew", A.SassColor$rgb0(240, 255, 240, 1), "grey", A.SassColor$rgb0(128, 128, 128, 1), "greenyellow", A.SassColor$rgb0(173, 255, 47, 1), "green", A.SassColor$rgb0(0, 128, 0, 1), "gray", A.SassColor$rgb0(128, 128, 128, 1), "goldenrod", A.SassColor$rgb0(218, 165, 32, 1), "gold", A.SassColor$rgb0(255, 215, 0, 1), "ghostwhite", A.SassColor$rgb0(248, 248, 255, 1), "gainsboro", A.SassColor$rgb0(220, 220, 220, 1), "fuchsia", A.SassColor$rgb0(255, 0, 255, 1), "forestgreen", A.SassColor$rgb0(34, 139, 34, 1), "floralwhite", A.SassColor$rgb0(255, 250, 240, 1), "firebrick", A.SassColor$rgb0(178, 34, 34, 1), "dodgerblue", A.SassColor$rgb0(30, 144, 255, 1), "dimgrey", A.SassColor$rgb0(105, 105, 105, 1), "dimgray", A.SassColor$rgb0(105, 105, 105, 1), "deepskyblue", A.SassColor$rgb0(0, 191, 255, 1), "deeppink", A.SassColor$rgb0(255, 20, 147, 1), "darkviolet", A.SassColor$rgb0(148, 0, 211, 1), "darkturquoise", A.SassColor$rgb0(0, 206, 209, 1), "darkslategrey", A.SassColor$rgb0(47, 79, 79, 1), "darkslategray", A.SassColor$rgb0(47, 79, 79, 1), "darkslateblue", A.SassColor$rgb0(72, 61, 139, 1), "darkseagreen", A.SassColor$rgb0(143, 188, 143, 1), "darksalmon", A.SassColor$rgb0(233, 150, 122, 1), "darkred", A.SassColor$rgb0(139, 0, 0, 1), "darkorchid", A.SassColor$rgb0(153, 50, 204, 1), "darkorange", A.SassColor$rgb0(255, 140, 0, 1), "darkolivegreen", A.SassColor$rgb0(85, 107, 47, 1), "darkmagenta", A.SassColor$rgb0(139, 0, 139, 1), "darkkhaki", A.SassColor$rgb0(189, 183, 107, 1), "darkgrey", A.SassColor$rgb0(169, 169, 169, 1), "darkgreen", A.SassColor$rgb0(0, 100, 0, 1), "darkgray", A.SassColor$rgb0(169, 169, 169, 1), "darkgoldenrod", A.SassColor$rgb0(184, 134, 11, 1), "darkcyan", A.SassColor$rgb0(0, 139, 139, 1), "darkblue", A.SassColor$rgb0(0, 0, 139, 1), "cyan", A.SassColor$rgb0(0, 255, 255, 1), "crimson", A.SassColor$rgb0(220, 20, 60, 1), "cornsilk", A.SassColor$rgb0(255, 248, 220, 1), "cornflowerblue", A.SassColor$rgb0(100, 149, 237, 1), "coral", A.SassColor$rgb0(255, 127, 80, 1), "chocolate", A.SassColor$rgb0(210, 105, 30, 1), "chartreuse", A.SassColor$rgb0(127, 255, 0, 1), "cadetblue", A.SassColor$rgb0(95, 158, 160, 1), "burlywood", A.SassColor$rgb0(222, 184, 135, 1), "brown", A.SassColor$rgb0(165, 42, 42, 1), "blueviolet", A.SassColor$rgb0(138, 43, 226, 1), "blue", A.SassColor$rgb0(0, 0, 255, 1), "blanchedalmond", A.SassColor$rgb0(255, 235, 205, 1), "black", A.SassColor$rgb0(0, 0, 0, 1), "bisque", A.SassColor$rgb0(255, 228, 196, 1), "beige", A.SassColor$rgb0(245, 245, 220, 1), "azure", A.SassColor$rgb0(240, 255, 255, 1), "aquamarine", A.SassColor$rgb0(127, 255, 212, 1), "aqua", A.SassColor$rgb0(0, 255, 255, 1), "antiquewhite", A.SassColor$rgb0(250, 235, 215, 1), "aliceblue", A.SassColor$rgb0(240, 248, 255, 1)], type$.String, type$.SassColor_2));
+    _lazyFinal($, "namesByColor0", "$get$namesByColor0", () => {
+      var $name,
+        t1 = type$.SassColor_2,
+        t2 = type$.String,
+        t3 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t2);
+      for (t1 = A.MapExtensions_get_pairs0($.$get$colorsByName0(), t2, t1), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t2 = t1.get$current(t1);
+        $name = t2._0;
+        t3.$indexSet(0, t2._1, $name);
+      }
+      return t3;
+    });
+    _lazyFinal($, "nodePackageImporterClass", "$get$nodePackageImporterClass", () => new A.nodePackageImporterClass_closure().call$0());
+    _lazyFinal($, "compilerClass", "$get$compilerClass", () => new A.compilerClass_closure().call$0());
+    _lazyFinal($, "asyncCompilerClass", "$get$asyncCompilerClass", () => new A.asyncCompilerClass_closure().call$0());
+    _lazyFinal($, "_disallowedFunctionNames0", "$get$_disallowedFunctionNames0", () => {
+      var t1 = $.$get$globalFunctions0();
+      t1 = t1.map$1$1(t1, new A._disallowedFunctionNames_closure0(), type$.String).toSet$0(0);
+      t1.add$1(0, "if");
+      t1.remove$1(0, "rgb");
+      t1.remove$1(0, "rgba");
+      t1.remove$1(0, "hsl");
+      t1.remove$1(0, "hsla");
+      t1.remove$1(0, "grayscale");
+      t1.remove$1(0, "invert");
+      t1.remove$1(0, "alpha");
+      t1.remove$1(0, "opacity");
+      t1.remove$1(0, "saturate");
+      t1.remove$1(0, "min");
+      t1.remove$1(0, "max");
+      t1.remove$1(0, "round");
+      t1.remove$1(0, "abs");
+      return t1;
+    });
+    _lazyFinal($, "deprecations", "$get$deprecations", () => {
+      var _i, deprecation, t2,
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, A.findType("Deprecation1?"));
+      for (_i = 0; _i < 18; ++_i) {
+        deprecation = B.List_jM9[_i];
+        if (deprecation !== B.Deprecation_Agq) {
+          t2 = deprecation.id;
+          t1.$indexSet(0, t2, {id: t2, status: new A.deprecations_closure(deprecation).call$0(), description: deprecation.description, deprecatedIn: deprecation.get$deprecatedIn(0), obsoleteIn: deprecation.get$deprecatedIn(0)});
+        }
+      }
+      return t1;
+    });
+    _lazyFinal($, "versionClass", "$get$versionClass", () => new A.versionClass_closure().call$0());
+    _lazyFinal($, "exceptionClass", "$get$exceptionClass", () => new A.exceptionClass_closure().call$0());
+    _lazyFinal($, "FilesystemImporter_cwd0", "$get$FilesystemImporter_cwd0", () => {
+      var _null = null;
+      return new A.FilesystemImporter0(A.absolute(".", _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null, _null), true);
+    });
+    _lazyFinal($, "functionClass", "$get$functionClass", () => new A.functionClass_closure().call$0());
+    _lazyFinal($, "globalFunctions0", "$get$globalFunctions0", () => {
+      var t1 = type$.BuiltInCallable_2,
+        t2 = A.List_List$of($.$get$global7(), true, t1);
+      B.JSArray_methods.addAll$1(t2, $.$get$global8());
+      B.JSArray_methods.addAll$1(t2, $.$get$global9());
+      B.JSArray_methods.addAll$1(t2, $.$get$global10());
+      B.JSArray_methods.addAll$1(t2, $.$get$global11());
+      B.JSArray_methods.addAll$1(t2, $.$get$global12());
+      B.JSArray_methods.addAll$1(t2, $.$get$global6());
+      t2.push(A.BuiltInCallable$function0("if", "$condition, $if-true, $if-false", new A.globalFunctions_closure0(), null));
+      return A.UnmodifiableListView$(t2, t1);
+    });
+    _lazyFinal($, "coreModules0", "$get$coreModules0", () => A.UnmodifiableListView$(A._setArrayType([$.$get$module5(), $.$get$module6(), $.$get$module7(), $.$get$module8(), $.$get$module9(), $.$get$module10()], A.findType("JSArray<BuiltInModule0<Callable>>")), type$.BuiltInModule_Callable_2));
+    _lazyFinal($, "IfExpression_declaration0", "$get$IfExpression_declaration0", () => A.ArgumentDeclaration_ArgumentDeclaration$parse0(string$.x40funct, null));
+    _lazyFinal($, "global7", "$get$global8", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_length2(), $.$get$_nth0(), $.$get$_setNth0(), $.$get$_join0(), $.$get$_append2(), $.$get$_zip0(), $.$get$_index2(), $.$get$_isBracketed0(), $.$get$_separator0().withName$1("list-separator")], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "module6", "$get$module6", () => A.BuiltInModule$0("list", A._setArrayType([$.$get$_length2(), $.$get$_nth0(), $.$get$_setNth0(), $.$get$_join0(), $.$get$_append2(), $.$get$_zip0(), $.$get$_index2(), $.$get$_isBracketed0(), $.$get$_separator0(), $.$get$_slash0()], type$.JSArray_Callable_2), null, null, type$.Callable_2));
+    _lazyFinal($, "_length1", "$get$_length2", () => A._function10("length", "$list", new A._length_closure2()));
+    _lazyFinal($, "_nth0", "$get$_nth0", () => A._function10("nth", "$list, $n", new A._nth_closure0()));
+    _lazyFinal($, "_setNth0", "$get$_setNth0", () => A._function10("set-nth", "$list, $n, $value", new A._setNth_closure0()));
+    _lazyFinal($, "_join0", "$get$_join0", () => A._function10("join", string$.x24list1, new A._join_closure0()));
+    _lazyFinal($, "_append1", "$get$_append2", () => A._function10("append", "$list, $val, $separator: auto", new A._append_closure2()));
+    _lazyFinal($, "_zip0", "$get$_zip0", () => A._function10("zip", "$lists...", new A._zip_closure0()));
+    _lazyFinal($, "_index1", "$get$_index2", () => A._function10("index", "$list, $value", new A._index_closure2()));
+    _lazyFinal($, "_separator0", "$get$_separator0", () => A._function10("separator", "$list", new A._separator_closure0()));
+    _lazyFinal($, "_isBracketed0", "$get$_isBracketed0", () => A._function10("is-bracketed", "$list", new A._isBracketed_closure0()));
+    _lazyFinal($, "_slash0", "$get$_slash0", () => A._function10("slash", "$elements...", new A._slash_closure0()));
+    _lazyFinal($, "listClass", "$get$listClass", () => new A.listClass_closure().call$0());
+    _lazyFinal($, "legacyListClass", "$get$legacyListClass", () => {
+      var t1 = A.createJSClass("sass.types.List", new A.legacyListClass_closure());
+      A.JSClassExtension_defineMethods(t1, A.LinkedHashMap_LinkedHashMap$_literal(["getValue", new A.legacyListClass_closure0(), "setValue", new A.legacyListClass_closure1(), "getSeparator", new A.legacyListClass_closure2(), "setSeparator", new A.legacyListClass_closure3(), "getLength", new A.legacyListClass_closure4()], type$.String, type$.Function));
+      return t1;
+    });
+    _lazyFinal($, "Logger_quiet0", "$get$Logger_quiet0", () => new A._QuietLogger0());
+    _lazyFinal($, "global8", "$get$global9", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_get0().withName$1("map-get"), $.$get$_merge0().withName$1("map-merge"), $.$get$_remove0().withName$1("map-remove"), $.$get$_keys0().withName$1("map-keys"), $.$get$_values0().withName$1("map-values"), $.$get$_hasKey0().withName$1("map-has-key")], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "module7", "$get$module7", () => A.BuiltInModule$0("map", A._setArrayType([$.$get$_get0(), $.$get$_set0(), $.$get$_merge0(), $.$get$_remove0(), $.$get$_keys0(), $.$get$_values0(), $.$get$_hasKey0(), $.$get$_deepMerge0(), $.$get$_deepRemove0()], type$.JSArray_Callable_2), null, null, type$.Callable_2));
+    _lazyFinal($, "_get0", "$get$_get0", () => A._function9("get", "$map, $key, $keys...", new A._get_closure0()));
+    _lazyFinal($, "_set0", "$get$_set0", () => A.BuiltInCallable$overloadedFunction0("set", A.LinkedHashMap_LinkedHashMap$_literal(["$map, $key, $value", new A._set_closure1(), "$map, $args...", new A._set_closure2()], type$.String, type$.Value_Function_List_Value_2)));
+    _lazyFinal($, "_merge0", "$get$_merge0", () => A.BuiltInCallable$overloadedFunction0("merge", A.LinkedHashMap_LinkedHashMap$_literal(["$map1, $map2", new A._merge_closure1(), "$map1, $args...", new A._merge_closure2()], type$.String, type$.Value_Function_List_Value_2)));
+    _lazyFinal($, "_deepMerge0", "$get$_deepMerge0", () => A._function9("deep-merge", "$map1, $map2", new A._deepMerge_closure0()));
+    _lazyFinal($, "_deepRemove0", "$get$_deepRemove0", () => A._function9("deep-remove", "$map, $key, $keys...", new A._deepRemove_closure0()));
+    _lazyFinal($, "_remove0", "$get$_remove0", () => A.BuiltInCallable$overloadedFunction0("remove", A.LinkedHashMap_LinkedHashMap$_literal(["$map", new A._remove_closure1(), "$map, $key, $keys...", new A._remove_closure2()], type$.String, type$.Value_Function_List_Value_2)));
+    _lazyFinal($, "_keys0", "$get$_keys0", () => A._function9("keys", "$map", new A._keys_closure0()));
+    _lazyFinal($, "_values0", "$get$_values0", () => A._function9("values", "$map", new A._values_closure0()));
+    _lazyFinal($, "_hasKey0", "$get$_hasKey0", () => A._function9("has-key", "$map, $key, $keys...", new A._hasKey_closure0()));
+    _lazyFinal($, "mapClass", "$get$mapClass", () => new A.mapClass_closure().call$0());
+    _lazyFinal($, "legacyMapClass", "$get$legacyMapClass", () => {
+      var t1 = A.createJSClass("sass.types.Map", new A.legacyMapClass_closure());
+      A.JSClassExtension_defineMethods(t1, A.LinkedHashMap_LinkedHashMap$_literal(["getKey", new A.legacyMapClass_closure0(), "getValue", new A.legacyMapClass_closure1(), "getLength", new A.legacyMapClass_closure2(), "setKey", new A.legacyMapClass_closure3(), "setValue", new A.legacyMapClass_closure4()], type$.String, type$.Function));
+      return t1;
+    });
+    _lazyFinal($, "global9", "$get$global10", () => A.UnmodifiableListView$(A._setArrayType([A._function8("abs", "$number", new A.global_closure31()), $.$get$_ceil0(), $.$get$_floor0(), $.$get$_max0(), $.$get$_min0(), $.$get$_percentage0(), $.$get$_randomFunction0(), $.$get$_round0(), $.$get$_unit0(), $.$get$_compatible0().withName$1("comparable"), $.$get$_isUnitless0().withName$1("unitless")], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "module8", "$get$module8", () => {
+      var _null = null;
+      return A.BuiltInModule$0("math", A._setArrayType([A._numberFunction0("abs", new A.module_closure11()), $.$get$_acos0(), $.$get$_asin0(), $.$get$_atan0(), $.$get$_atan20(), $.$get$_ceil0(), $.$get$_clamp0(), $.$get$_cos0(), $.$get$_compatible0(), $.$get$_floor0(), $.$get$_hypot0(), $.$get$_isUnitless0(), $.$get$_log0(), $.$get$_max0(), $.$get$_min0(), $.$get$_percentage0(), $.$get$_pow0(), $.$get$_randomFunction0(), $.$get$_round0(), $.$get$_sin0(), $.$get$_sqrt0(), $.$get$_tan0(), $.$get$_unit0(), $.$get$_div0()], type$.JSArray_Callable_2), _null, A.LinkedHashMap_LinkedHashMap$_literal(["e", A.SassNumber_SassNumber0(2.718281828459045, _null), "pi", A.SassNumber_SassNumber0(3.141592653589793, _null), "epsilon", A.SassNumber_SassNumber0(2220446049250313e-31, _null), "max-safe-integer", A.SassNumber_SassNumber0(9007199254740991, _null), "min-safe-integer", A.SassNumber_SassNumber0(-9007199254740991, _null), "max-number", A.SassNumber_SassNumber0(17976931348623157e292, _null), "min-number", A.SassNumber_SassNumber0(5e-324, _null)], type$.String, type$.Value_2), type$.Callable_2);
+    });
+    _lazyFinal($, "_ceil0", "$get$_ceil0", () => A._numberFunction0("ceil", new A._ceil_closure0()));
+    _lazyFinal($, "_clamp0", "$get$_clamp0", () => A._function8("clamp", "$min, $number, $max", new A._clamp_closure0()));
+    _lazyFinal($, "_floor0", "$get$_floor0", () => A._numberFunction0("floor", new A._floor_closure0()));
+    _lazyFinal($, "_max0", "$get$_max0", () => A._function8("max", "$numbers...", new A._max_closure0()));
+    _lazyFinal($, "_min0", "$get$_min0", () => A._function8("min", "$numbers...", new A._min_closure0()));
+    _lazyFinal($, "_round0", "$get$_round0", () => A._numberFunction0("round", new A._round_closure0()));
+    _lazyFinal($, "_hypot0", "$get$_hypot0", () => A._function8("hypot", "$numbers...", new A._hypot_closure0()));
+    _lazyFinal($, "_log0", "$get$_log0", () => A._function8("log", "$number, $base: null", new A._log_closure0()));
+    _lazyFinal($, "_pow0", "$get$_pow0", () => A._function8("pow", "$base, $exponent", new A._pow_closure0()));
+    _lazyFinal($, "_sqrt0", "$get$_sqrt0", () => A._singleArgumentMathFunc0("sqrt", A.number2__sqrt$closure()));
+    _lazyFinal($, "_acos0", "$get$_acos0", () => A._singleArgumentMathFunc0("acos", A.number2__acos$closure()));
+    _lazyFinal($, "_asin0", "$get$_asin0", () => A._singleArgumentMathFunc0("asin", A.number2__asin$closure()));
+    _lazyFinal($, "_atan0", "$get$_atan0", () => A._singleArgumentMathFunc0("atan", A.number2__atan$closure()));
+    _lazyFinal($, "_atan20", "$get$_atan20", () => A._function8("atan2", "$y, $x", new A._atan2_closure0()));
+    _lazyFinal($, "_cos0", "$get$_cos0", () => A._singleArgumentMathFunc0("cos", A.number2__cos$closure()));
+    _lazyFinal($, "_sin0", "$get$_sin0", () => A._singleArgumentMathFunc0("sin", A.number2__sin$closure()));
+    _lazyFinal($, "_tan0", "$get$_tan0", () => A._singleArgumentMathFunc0("tan", A.number2__tan$closure()));
+    _lazyFinal($, "_compatible0", "$get$_compatible0", () => A._function8("compatible", "$number1, $number2", new A._compatible_closure0()));
+    _lazyFinal($, "_isUnitless0", "$get$_isUnitless0", () => A._function8("is-unitless", "$number", new A._isUnitless_closure0()));
+    _lazyFinal($, "_unit0", "$get$_unit0", () => A._function8("unit", "$number", new A._unit_closure0()));
+    _lazyFinal($, "_percentage0", "$get$_percentage0", () => A._function8("percentage", "$number", new A._percentage_closure0()));
+    _lazyFinal($, "_random1", "$get$_random2", () => A.Random_Random());
+    _lazyFinal($, "_randomFunction0", "$get$_randomFunction0", () => A._function8("random", "$limit: null", new A._randomFunction_closure0()));
+    _lazyFinal($, "_div0", "$get$_div0", () => A._function8("div", "$number1, $number2", new A._div_closure0()));
+    _lazyFinal($, "global10", "$get$global6", () => A.UnmodifiableListView$(A._setArrayType([A._function12("feature-exists", "$feature", new A.global_closure59()), A._function12("inspect", "$value", new A.global_closure60()), A._function12("type-of", "$value", new A.global_closure61()), A._function12("keywords", "$args", new A.global_closure62())], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "local0", "$get$local0", () => A.UnmodifiableListView$(A._setArrayType([A._function12("calc-name", "$calc", new A.local_closure2()), A._function12("calc-args", "$calc", new A.local_closure3()), A._function12("accepts-content", "$mixin", new A.local_closure4())], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "mixinClass", "$get$mixinClass", () => new A.mixinClass_closure().call$0());
+    _lazyFinal($, "legacyNullClass", "$get$legacyNullClass", () => new A.legacyNullClass_closure().call$0());
+    _lazyFinal($, "_epsilon0", "$get$_epsilon0", () => A.pow(10, -11));
+    _lazyFinal($, "_inverseEpsilon0", "$get$_inverseEpsilon0", () => A.pow(10, 11));
+    _lazyFinal($, "numberClass", "$get$numberClass", () => new A.numberClass_closure().call$0());
+    _lazyFinal($, "legacyNumberClass", "$get$legacyNumberClass", () => {
+      var t1 = A.createJSClass("sass.types.Number", new A.legacyNumberClass_closure());
+      A.JSClassExtension_defineMethods(t1, A.LinkedHashMap_LinkedHashMap$_literal(["getValue", new A.legacyNumberClass_closure0(), "setValue", new A.legacyNumberClass_closure1(), "getUnit", new A.legacyNumberClass_closure2(), "setUnit", new A.legacyNumberClass_closure3()], type$.String, type$.Function));
+      return t1;
+    });
+    _lazyFinal($, "_typesByUnit0", "$get$_typesByUnit0", () => {
+      var t3, type,
+        t1 = type$.String,
+        t2 = A.LinkedHashMap_LinkedHashMap$_empty(t1, t1);
+      for (t1 = A.MapExtensions_get_pairs0(B.Map_397RH, t1, type$.List_String), t1 = t1.get$iterator(t1); t1.moveNext$0();) {
+        t3 = t1.get$current(t1);
+        type = t3._0;
+        for (t3 = J.get$iterator$ax(t3._1); t3.moveNext$0();)
+          t2.$indexSet(0, t3.get$current(t3), type);
+      }
+      return t2;
+    });
+    _lazyFinal($, "global11", "$get$global11", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_isSuperselector0(), $.$get$_simpleSelectors0(), $.$get$_parse0().withName$1("selector-parse"), $.$get$_nest0().withName$1("selector-nest"), $.$get$_append1().withName$1("selector-append"), $.$get$_extend0().withName$1("selector-extend"), $.$get$_replace0().withName$1("selector-replace"), $.$get$_unify0().withName$1("selector-unify")], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "module9", "$get$module9", () => A.BuiltInModule$0("selector", A._setArrayType([$.$get$_isSuperselector0(), $.$get$_simpleSelectors0(), $.$get$_parse0(), $.$get$_nest0(), $.$get$_append1(), $.$get$_extend0(), $.$get$_replace0(), $.$get$_unify0()], type$.JSArray_Callable_2), null, null, type$.Callable_2));
+    _lazyFinal($, "_nest0", "$get$_nest0", () => A._function7("nest", "$selectors...", new A._nest_closure0()));
+    _lazyFinal($, "_append2", "$get$_append1", () => A._function7("append", "$selectors...", new A._append_closure1()));
+    _lazyFinal($, "_extend0", "$get$_extend0", () => A._function7("extend", "$selector, $extendee, $extender", new A._extend_closure0()));
+    _lazyFinal($, "_replace0", "$get$_replace0", () => A._function7("replace", "$selector, $original, $replacement", new A._replace_closure0()));
+    _lazyFinal($, "_unify0", "$get$_unify0", () => A._function7("unify", "$selector1, $selector2", new A._unify_closure0()));
+    _lazyFinal($, "_isSuperselector0", "$get$_isSuperselector0", () => A._function7("is-superselector", "$super, $sub", new A._isSuperselector_closure0()));
+    _lazyFinal($, "_simpleSelectors0", "$get$_simpleSelectors0", () => A._function7("simple-selectors", "$selector", new A._simpleSelectors_closure0()));
+    _lazyFinal($, "_parse0", "$get$_parse0", () => A._function7("parse", "$selector", new A._parse_closure0()));
+    _lazyFinal($, "_knownCompatibilitiesByUnit0", "$get$_knownCompatibilitiesByUnit0", () => {
+      var _i, set, t2,
+        t1 = A.LinkedHashMap_LinkedHashMap$_empty(type$.String, A.findType("Set<String>"));
+      for (_i = 0; _i < 5; ++_i) {
+        set = B.List_Eeh[_i];
+        for (t2 = set.get$iterator(set); t2.moveNext$0();)
+          t1.$indexSet(0, t2.get$current(0), set);
+      }
+      return t1;
+    });
+    _lazyFinal($, "bogusSpan0", "$get$bogusSpan0", () => A.SourceFile$decoded(A._setArrayType([], type$.JSArray_int), null).span$1(0, 0));
+    _lazyFinal($, "_random2", "$get$_random1", () => A.Random_Random());
+    _lazy($, "_previousUniqueId0", "$get$_previousUniqueId0", () => $.$get$_random1().nextInt$1(A._asInt(A.pow(36, 6))));
+    _lazyFinal($, "global12", "$get$global12", () => A.UnmodifiableListView$(A._setArrayType([$.$get$_unquote0(), $.$get$_quote0(), $.$get$_toUpperCase0(), $.$get$_toLowerCase0(), $.$get$_uniqueId0(), $.$get$_length1().withName$1("str-length"), $.$get$_insert0().withName$1("str-insert"), $.$get$_index1().withName$1("str-index"), $.$get$_slice0().withName$1("str-slice")], type$.JSArray_BuiltInCallable_2), type$.BuiltInCallable_2));
+    _lazyFinal($, "module10", "$get$module10", () => A.BuiltInModule$0("string", A._setArrayType([$.$get$_unquote0(), $.$get$_quote0(), $.$get$_toUpperCase0(), $.$get$_toLowerCase0(), $.$get$_length1(), $.$get$_insert0(), $.$get$_index1(), $.$get$_slice0(), $.$get$_uniqueId0(), A._function6("split", "$string, $separator, $limit: null", new A.module_closure10())], type$.JSArray_Callable_2), null, null, type$.Callable_2));
+    _lazyFinal($, "_unquote0", "$get$_unquote0", () => A._function6("unquote", "$string", new A._unquote_closure0()));
+    _lazyFinal($, "_quote0", "$get$_quote0", () => A._function6("quote", "$string", new A._quote_closure0()));
+    _lazyFinal($, "_length2", "$get$_length1", () => A._function6("length", "$string", new A._length_closure1()));
+    _lazyFinal($, "_insert0", "$get$_insert0", () => A._function6("insert", "$string, $insert, $index", new A._insert_closure0()));
+    _lazyFinal($, "_index2", "$get$_index1", () => A._function6("index", "$string, $substring", new A._index_closure1()));
+    _lazyFinal($, "_slice0", "$get$_slice0", () => A._function6("slice", "$string, $start-at, $end-at: -1", new A._slice_closure0()));
+    _lazyFinal($, "_toUpperCase0", "$get$_toUpperCase0", () => A._function6("to-upper-case", "$string", new A._toUpperCase_closure0()));
+    _lazyFinal($, "_toLowerCase0", "$get$_toLowerCase0", () => A._function6("to-lower-case", "$string", new A._toLowerCase_closure0()));
+    _lazyFinal($, "_uniqueId0", "$get$_uniqueId0", () => A._function6("unique-id", "", new A._uniqueId_closure0()));
+    _lazyFinal($, "stringClass", "$get$stringClass", () => new A.stringClass_closure().call$0());
+    _lazyFinal($, "legacyStringClass", "$get$legacyStringClass", () => {
+      var t1 = A.createJSClass("sass.types.String", new A.legacyStringClass_closure());
+      A.JSClassExtension_defineMethods(t1, A.LinkedHashMap_LinkedHashMap$_literal(["getValue", new A.legacyStringClass_closure0(), "setValue", new A.legacyStringClass_closure1()], type$.String, type$.Function));
+      return t1;
+    });
+    _lazyFinal($, "_emptyQuoted0", "$get$_emptyQuoted0", () => A.SassString$0("", true));
+    _lazyFinal($, "_emptyUnquoted0", "$get$_emptyUnquoted0", () => A.SassString$0("", false));
+    _lazyFinal($, "_urlSchemeRegExp", "$get$_urlSchemeRegExp", () => A.RegExp_RegExp("^[a-z0-9+.-]+$", false));
+    _lazyFinal($, "_jsThrow0", "$get$_jsThrow", () => new self.Function("error", "throw error;"));
+    _lazyFinal($, "_isUndefined", "$get$_isUndefined", () => new self.Function("value", "return value === undefined;"));
+    _lazyFinal($, "_noSourceUrl0", "$get$_noSourceUrl0", () => A.Uri_parse("-"));
+    _lazyFinal($, "_traces0", "$get$_traces0", () => A.Expando$());
+    _lazyFinal($, "valueClass", "$get$valueClass", () => new A.valueClass_closure().call$0());
+  })();
+  (function nativeSupport() {
+    !function() {
+      var intern = function(s) {
+        var o = {};
+        o[s] = 1;
+        return Object.keys(hunkHelpers.convertToFastObject(o))[0];
+      };
+      init.getIsolateTag = function(name) {
+        return intern("___dart_" + name + init.isolateTag);
+      };
+      var tableProperty = "___dart_isolate_tags_";
+      var usedProperties = Object[tableProperty] || (Object[tableProperty] = Object.create(null));
+      var rootProperty = "_ZxYxX";
+      for (var i = 0;; i++) {
+        var property = intern(rootProperty + "_" + i + "_");
+        if (!(property in usedProperties)) {
+          usedProperties[property] = 1;
+          init.isolateTag = property;
+          break;
+        }
+      }
+      init.dispatchPropertyName = init.getIsolateTag("dispatch_record");
+    }();
+    hunkHelpers.setOrUpdateInterceptorsByTag({ArrayBuffer: A.NativeByteBuffer, ArrayBufferView: A.NativeTypedData, DataView: A.NativeByteData, Float32Array: A.NativeFloat32List, Float64Array: A.NativeFloat64List, Int16Array: A.NativeInt16List, Int32Array: A.NativeInt32List, Int8Array: A.NativeInt8List, Uint16Array: A.NativeUint16List, Uint32Array: A.NativeUint32List, Uint8ClampedArray: A.NativeUint8ClampedList, CanvasPixelArray: A.NativeUint8ClampedList, Uint8Array: A.NativeUint8List});
+    hunkHelpers.setOrUpdateLeafTags({ArrayBuffer: true, ArrayBufferView: false, DataView: true, Float32Array: true, Float64Array: true, Int16Array: true, Int32Array: true, Int8Array: true, Uint16Array: true, Uint32Array: true, Uint8ClampedArray: true, CanvasPixelArray: true, Uint8Array: false});
+    A.NativeTypedArray.$nativeSuperclassTag = "ArrayBufferView";
+    A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin.$nativeSuperclassTag = "ArrayBufferView";
+    A._NativeTypedArrayOfDouble_NativeTypedArray_ListMixin_FixedLengthListMixin.$nativeSuperclassTag = "ArrayBufferView";
+    A.NativeTypedArrayOfDouble.$nativeSuperclassTag = "ArrayBufferView";
+    A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin.$nativeSuperclassTag = "ArrayBufferView";
+    A._NativeTypedArrayOfInt_NativeTypedArray_ListMixin_FixedLengthListMixin.$nativeSuperclassTag = "ArrayBufferView";
+    A.NativeTypedArrayOfInt.$nativeSuperclassTag = "ArrayBufferView";
+  })();
+  Function.prototype.call$0 = function() {
+    return this();
+  };
+  Function.prototype.call$1 = function(a) {
+    return this(a);
+  };
+  Function.prototype.call$2 = function(a, b) {
+    return this(a, b);
+  };
+  Function.prototype.call$3$1 = function(a) {
+    return this(a);
+  };
+  Function.prototype.call$2$1 = function(a) {
+    return this(a);
+  };
+  Function.prototype.call$1$1 = function(a) {
+    return this(a);
+  };
+  Function.prototype.call$3 = function(a, b, c) {
+    return this(a, b, c);
+  };
+  Function.prototype.call$4 = function(a, b, c, d) {
+    return this(a, b, c, d);
+  };
+  Function.prototype.call$3$3 = function(a, b, c) {
+    return this(a, b, c);
+  };
+  Function.prototype.call$2$2 = function(a, b) {
+    return this(a, b);
+  };
+  Function.prototype.call$5 = function(a, b, c, d, e) {
+    return this(a, b, c, d, e);
+  };
+  Function.prototype.call$6 = function(a, b, c, d, e, f) {
+    return this(a, b, c, d, e, f);
+  };
+  Function.prototype.call$2$0 = function() {
+    return this();
+  };
+  Function.prototype.call$1$0 = function() {
+    return this();
+  };
+  Function.prototype.call$1$2 = function(a, b) {
+    return this(a, b);
+  };
+  Function.prototype.call$2$3 = function(a, b, c) {
+    return this(a, b, c);
+  };
+  convertAllToFastObject(holders);
+  convertToFastObject($);
+  (function(callback) {
+    if (typeof document === "undefined") {
+      callback(null);
+      return;
+    }
+    if (typeof document.currentScript != "undefined") {
+      callback(document.currentScript);
+      return;
+    }
+    var scripts = document.scripts;
+    function onLoad(event) {
+      for (var i = 0; i < scripts.length; ++i) {
+        scripts[i].removeEventListener("load", onLoad, false);
+      }
+      callback(event.target);
+    }
+    for (var i = 0; i < scripts.length; ++i) {
+      scripts[i].addEventListener("load", onLoad, false);
+    }
+  })(function(currentScript) {
+    init.currentScript = currentScript;
+    var callMain = A.main2;
+    if (typeof dartMainRunner === "function") {
+      dartMainRunner(callMain, []);
+    } else {
+      callMain([]);
+    }
+  });
+})();
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/sass.default.cjs b/src/main/webapp/com/css/sass/node_modules/sass/sass.default.cjs
new file mode 100644
index 00000000..94d102ae
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/sass.default.cjs
@@ -0,0 +1,8 @@
+require('./sass.dart.js');
+const library = globalThis._cliPkgExports.pop();
+if (globalThis._cliPkgExports.length === 0) delete globalThis._cliPkgExports;
+library.load({
+  immutable: require("immutable"),
+});
+
+module.exports = library;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/sass.default.js b/src/main/webapp/com/css/sass/node_modules/sass/sass.default.js
new file mode 100644
index 00000000..77acae04
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/sass.default.js
@@ -0,0 +1,47 @@
+import * as immutable from "immutable"
+import "./sass.dart.js";
+
+const _cliPkgLibrary = globalThis._cliPkgExports.pop();
+if (globalThis._cliPkgExports.length === 0) delete globalThis._cliPkgExports;
+const _cliPkgExports = {};
+_cliPkgLibrary.load({immutable}, _cliPkgExports);
+
+export const compile = _cliPkgExports.compile;
+export const compileAsync = _cliPkgExports.compileAsync;
+export const compileString = _cliPkgExports.compileString;
+export const compileStringAsync = _cliPkgExports.compileStringAsync;
+export const initCompiler = _cliPkgExports.initCompiler;
+export const initAsyncCompiler = _cliPkgExports.initAsyncCompiler;
+export const Compiler = _cliPkgExports.Compiler;
+export const AsyncCompiler = _cliPkgExports.AsyncCompiler;
+export const Logger = _cliPkgExports.Logger;
+export const SassArgumentList = _cliPkgExports.SassArgumentList;
+export const SassBoolean = _cliPkgExports.SassBoolean;
+export const SassCalculation = _cliPkgExports.SassCalculation;
+export const CalculationOperation = _cliPkgExports.CalculationOperation;
+export const CalculationInterpolation = _cliPkgExports.CalculationInterpolation;
+export const SassColor = _cliPkgExports.SassColor;
+export const SassFunction = _cliPkgExports.SassFunction;
+export const SassList = _cliPkgExports.SassList;
+export const SassMap = _cliPkgExports.SassMap;
+export const SassMixin = _cliPkgExports.SassMixin;
+export const SassNumber = _cliPkgExports.SassNumber;
+export const SassString = _cliPkgExports.SassString;
+export const Value = _cliPkgExports.Value;
+export const CustomFunction = _cliPkgExports.CustomFunction;
+export const ListSeparator = _cliPkgExports.ListSeparator;
+export const sassFalse = _cliPkgExports.sassFalse;
+export const sassNull = _cliPkgExports.sassNull;
+export const sassTrue = _cliPkgExports.sassTrue;
+export const Exception = _cliPkgExports.Exception;
+export const PromiseOr = _cliPkgExports.PromiseOr;
+export const info = _cliPkgExports.info;
+export const render = _cliPkgExports.render;
+export const renderSync = _cliPkgExports.renderSync;
+export const TRUE = _cliPkgExports.TRUE;
+export const FALSE = _cliPkgExports.FALSE;
+export const NULL = _cliPkgExports.NULL;
+export const types = _cliPkgExports.types;
+export const NodePackageImporter = _cliPkgExports.NodePackageImporter;
+export const deprecations = _cliPkgExports.deprecations;
+export const Version = _cliPkgExports.Version;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/sass.js b/src/main/webapp/com/css/sass/node_modules/sass/sass.js
new file mode 100644
index 00000000..992dbb5f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/sass.js
@@ -0,0 +1,17 @@
+#!/usr/bin/env node
+
+require('./sass.dart.js');
+var library = globalThis._cliPkgExports.pop();
+if (globalThis._cliPkgExports.length === 0) delete globalThis._cliPkgExports;
+
+library.load({
+  readline: require("readline"),
+  chokidar: require("chokidar"),
+  util: require("util"),
+  stream: require("stream"),
+  nodeModule: require("module"),
+  fs: require("fs"),
+  immutable: require("immutable"),
+});
+
+library.cli_pkg_main_0_(process.argv.slice(2));
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/sass.node.js b/src/main/webapp/com/css/sass/node_modules/sass/sass.node.js
new file mode 100644
index 00000000..204ae2c4
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/sass.node.js
@@ -0,0 +1,12 @@
+require('./sass.dart.js');
+const library = globalThis._cliPkgExports.pop();
+if (globalThis._cliPkgExports.length === 0) delete globalThis._cliPkgExports;
+library.load({
+  util: require("util"),
+  stream: require("stream"),
+  nodeModule: require("module"),
+  fs: require("fs"),
+  immutable: require("immutable"),
+});
+
+module.exports = library;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/sass.node.mjs b/src/main/webapp/com/css/sass/node_modules/sass/sass.node.mjs
new file mode 100644
index 00000000..f59a3d89
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/sass.node.mjs
@@ -0,0 +1,209 @@
+import cjs from "./sass.node.js";
+
+export const compile = cjs.compile;
+export const compileAsync = cjs.compileAsync;
+export const compileString = cjs.compileString;
+export const compileStringAsync = cjs.compileStringAsync;
+export const initCompiler = cjs.initCompiler;
+export const initAsyncCompiler = cjs.initAsyncCompiler;
+export const Compiler = cjs.Compiler;
+export const AsyncCompiler = cjs.AsyncCompiler;
+export const Logger = cjs.Logger;
+export const SassArgumentList = cjs.SassArgumentList;
+export const SassBoolean = cjs.SassBoolean;
+export const SassCalculation = cjs.SassCalculation;
+export const CalculationOperation = cjs.CalculationOperation;
+export const CalculationInterpolation = cjs.CalculationInterpolation;
+export const SassColor = cjs.SassColor;
+export const SassFunction = cjs.SassFunction;
+export const SassList = cjs.SassList;
+export const SassMap = cjs.SassMap;
+export const SassMixin = cjs.SassMixin;
+export const SassNumber = cjs.SassNumber;
+export const SassString = cjs.SassString;
+export const Value = cjs.Value;
+export const CustomFunction = cjs.CustomFunction;
+export const ListSeparator = cjs.ListSeparator;
+export const sassFalse = cjs.sassFalse;
+export const sassNull = cjs.sassNull;
+export const sassTrue = cjs.sassTrue;
+export const Exception = cjs.Exception;
+export const PromiseOr = cjs.PromiseOr;
+export const info = cjs.info;
+export const render = cjs.render;
+export const renderSync = cjs.renderSync;
+export const TRUE = cjs.TRUE;
+export const FALSE = cjs.FALSE;
+export const NULL = cjs.NULL;
+export const types = cjs.types;
+export const NodePackageImporter = cjs.NodePackageImporter;
+export const deprecations = cjs.deprecations;
+export const Version = cjs.Version;
+
+let printedDefaultExportDeprecation = false;
+function defaultExportDeprecation() {
+  if (printedDefaultExportDeprecation) return;
+  printedDefaultExportDeprecation = true;
+  console.error(
+      "`import sass from 'sass'` is deprecated.\n" +
+      "Please use `import * as sass from 'sass'` instead.");
+}
+
+export default {
+  get compile() {
+    defaultExportDeprecation();
+    return cjs.compile;
+  },
+  get compileAsync() {
+    defaultExportDeprecation();
+    return cjs.compileAsync;
+  },
+  get compileString() {
+    defaultExportDeprecation();
+    return cjs.compileString;
+  },
+  get compileStringAsync() {
+    defaultExportDeprecation();
+    return cjs.compileStringAsync;
+  },
+  get initCompiler() {
+    defaultExportDeprecation();
+    return cjs.initCompiler;
+  },
+  get initAsyncCompiler() {
+    defaultExportDeprecation();
+    return cjs.initAsyncCompiler;
+  },
+  get Compiler() {
+    defaultExportDeprecation();
+    return cjs.Compiler;
+  },
+  get AsyncCompiler() {
+    defaultExportDeprecation();
+    return cjs.AsyncCompiler;
+  },
+  get Logger() {
+    defaultExportDeprecation();
+    return cjs.Logger;
+  },
+  get SassArgumentList() {
+    defaultExportDeprecation();
+    return cjs.SassArgumentList;
+  },
+  get SassBoolean() {
+    defaultExportDeprecation();
+    return cjs.SassBoolean;
+  },
+  get SassCalculation() {
+    defaultExportDeprecation();
+    return cjs.SassCalculation;
+  },
+  get CalculationOperation() {
+    defaultExportDeprecation();
+    return cjs.CalculationOperation;
+  },
+  get CalculationInterpolation() {
+    defaultExportDeprecation();
+    return cjs.CalculationInterpolation;
+  },
+  get SassColor() {
+    defaultExportDeprecation();
+    return cjs.SassColor;
+  },
+  get SassFunction() {
+    defaultExportDeprecation();
+    return cjs.SassFunction;
+  },
+  get SassList() {
+    defaultExportDeprecation();
+    return cjs.SassList;
+  },
+  get SassMap() {
+    defaultExportDeprecation();
+    return cjs.SassMap;
+  },
+  get SassMixin() {
+    defaultExportDeprecation();
+    return cjs.SassMixin;
+  },
+  get SassNumber() {
+    defaultExportDeprecation();
+    return cjs.SassNumber;
+  },
+  get SassString() {
+    defaultExportDeprecation();
+    return cjs.SassString;
+  },
+  get Value() {
+    defaultExportDeprecation();
+    return cjs.Value;
+  },
+  get CustomFunction() {
+    defaultExportDeprecation();
+    return cjs.CustomFunction;
+  },
+  get ListSeparator() {
+    defaultExportDeprecation();
+    return cjs.ListSeparator;
+  },
+  get sassFalse() {
+    defaultExportDeprecation();
+    return cjs.sassFalse;
+  },
+  get sassNull() {
+    defaultExportDeprecation();
+    return cjs.sassNull;
+  },
+  get sassTrue() {
+    defaultExportDeprecation();
+    return cjs.sassTrue;
+  },
+  get Exception() {
+    defaultExportDeprecation();
+    return cjs.Exception;
+  },
+  get PromiseOr() {
+    defaultExportDeprecation();
+    return cjs.PromiseOr;
+  },
+  get info() {
+    defaultExportDeprecation();
+    return cjs.info;
+  },
+  get render() {
+    defaultExportDeprecation();
+    return cjs.render;
+  },
+  get renderSync() {
+    defaultExportDeprecation();
+    return cjs.renderSync;
+  },
+  get TRUE() {
+    defaultExportDeprecation();
+    return cjs.TRUE;
+  },
+  get FALSE() {
+    defaultExportDeprecation();
+    return cjs.FALSE;
+  },
+  get NULL() {
+    defaultExportDeprecation();
+    return cjs.NULL;
+  },
+  get types() {
+    defaultExportDeprecation();
+    return cjs.types;
+  },
+  get NodePackageImporter() {
+    defaultExportDeprecation();
+    return cjs.NodePackageImporter;
+  },
+  get deprecations() {
+    defaultExportDeprecation();
+    return cjs.deprecations;
+  },
+  get Version() {
+    defaultExportDeprecation();
+    return cjs.Version;
+  },
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/compile.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/compile.d.ts
new file mode 100644
index 00000000..872754c2
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/compile.d.ts
@@ -0,0 +1,342 @@
+import {RawSourceMap} from 'source-map-js';
+
+import {Options, StringOptions} from './options';
+
+/**
+ * The result of compiling Sass to CSS. Returned by {@link compile}, {@link
+ * compileAsync}, {@link compileString}, and {@link compileStringAsync}.
+ *
+ * @category Compile
+ */
+export interface CompileResult {
+  /**
+   * The generated CSS.
+   *
+   * Note that this *never* includes a `sourceMapUrl` comment—it's up to the
+   * caller to determine where to save the source map and how to link to it from
+   * the stylesheet.
+   */
+  css: string;
+
+  /**
+   * The canonical URLs of all the stylesheets that were loaded during the
+   * Sass compilation. The order of these URLs is not guaranteed.
+   */
+  loadedUrls: URL[];
+
+  /**
+   * The object representation of the source map that maps locations in the
+   * generated CSS back to locations in the Sass source code.
+   *
+   * This typically uses absolute `file:` URLs to refer to Sass files, although
+   * this can be controlled by having a custom {@link Importer} return {@link
+   * ImporterResult.sourceMapUrl}.
+   *
+   * This is set if and only if {@link Options.sourceMap} is `true`.
+   */
+  sourceMap?: RawSourceMap;
+}
+
+/**
+ * The result of creating a synchronous compiler. Returned by
+ * {@link initCompiler}.
+ *
+ * @category Compile
+ */
+export class Compiler {
+  /**
+   * Throws an error if constructed directly, instead of via
+   * {@link initCompiler}.
+   */
+  private constructor();
+
+  /**
+   * The {@link compile} method exposed through a Compiler instance while it is
+   * active. If this is called after {@link dispose} on the Compiler
+   * instance, an error will be thrown.
+   *
+   * During the Compiler instance's lifespan, given the same input, this will
+   * return an identical result to the {@link compile} method exposed at the
+   * module root.
+   */
+  compile(path: string, options?: Options<'sync'>): CompileResult;
+
+  /**
+   * The {@link compileString} method exposed through a Compiler instance while
+   * it is active. If this is called after {@link dispose} on the Compiler
+   * instance, an error will be thrown.
+   *
+   * During the Compiler instance's lifespan, given the same input, this will
+   * return an identical result to the {@link compileString} method exposed at
+   * the module root.
+   */
+  compileString(source: string, options?: StringOptions<'sync'>): CompileResult;
+
+  /**
+   * Ends the lifespan of this Compiler instance. After this is invoked, all
+   * calls to the Compiler instance's {@link compile} or {@link compileString}
+   * methods will result in an error.
+   */
+  dispose(): void;
+}
+
+/**
+ * The result of creating an asynchronous compiler. Returned by
+ * {@link initAsyncCompiler}.
+ *
+ * @category Compile
+ */
+export class AsyncCompiler {
+  /**
+   * Throws an error if constructed directly, instead of via
+   * {@link initAsyncCompiler}.
+   */
+  private constructor();
+
+  /**
+   * The {@link compileAsync} method exposed through an Async Compiler instance
+   * while it is active. If this is called after {@link dispose} on the Async
+   * Compiler instance, an error will be thrown.
+   *
+   * During the Async Compiler instance's lifespan, given the same input, this
+   * will return an identical result to the {@link compileAsync} method exposed
+   * at the module root.
+   */
+  compileAsync(
+    path: string,
+    options?: Options<'async'>
+  ): Promise<CompileResult>;
+
+  /**
+   * The {@link compileStringAsync} method exposed through an Async Compiler
+   * instance while it is active. If this is called after {@link dispose} on the
+   * Async Compiler instance, an error will be thrown.
+   *
+   * During the Async Compiler instance's lifespan, given the same input, this
+   * will return an identical result to the {@link compileStringAsync} method
+   * exposed at the module root.
+   */
+  compileStringAsync(
+    source: string,
+    options?: StringOptions<'async'>
+  ): Promise<CompileResult>;
+
+  /**
+   * Ends the lifespan of this Async Compiler instance. After this is invoked,
+   * all subsequent calls to the Compiler instance's `compileAsync` or
+   * `compileStringAsync` methods will result in an error.
+   *
+   * Any compilations that are submitted before `dispose` will not be cancelled,
+   * and will be allowed to settle.
+   *
+   * After all compilations have been settled and Sass completes any internal
+   * task cleanup, `dispose` will resolve its promise.
+   */
+  dispose(): Promise<void>;
+}
+
+/**
+ * Synchronously compiles the Sass file at `path` to CSS. If it succeeds it
+ * returns a {@link CompileResult}, and if it fails it throws an {@link
+ * Exception}.
+ *
+ * This only allows synchronous {@link Importer}s and {@link CustomFunction}s.
+ *
+ * **Heads up!** When using the [sass-embedded] npm package for single
+ * compilations, **{@link compileAsync} is almost always faster than
+ * {@link compile}**, due to the overhead of emulating synchronous messaging
+ * with worker threads and concurrent compilations being blocked on main thread.
+ *
+ * If you are running multiple compilations with the [sass-embedded] npm
+ * package, using a {@link Compiler} will provide some speed improvements over
+ * the module-level methods, and an {@link AsyncCompiler} will be much faster.
+ *
+ * [sass-embedded]: https://www.npmjs.com/package/sass-embedded
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass');
+ *
+ * const result = sass.compile("style.scss");
+ * console.log(result.css);
+ * ```
+ *
+ * @category Compile
+ * @compatibility dart: "1.45.0", node: false
+ */
+export function compile(path: string, options?: Options<'sync'>): CompileResult;
+
+/**
+ * Asynchronously compiles the Sass file at `path` to CSS. Returns a promise
+ * that resolves with a {@link CompileResult} if it succeeds and rejects with an
+ * {@link Exception} if it fails.
+ *
+ * This only allows synchronous or asynchronous {@link Importer}s and
+ * {@link CustomFunction}s.
+ *
+ * **Heads up!** When using the `sass` npm package, **{@link compile} is almost
+ * twice as fast as {@link compileAsync}**, due to the overhead of making the
+ * entire evaluation process asynchronous.
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass');
+ *
+ * const result = await sass.compileAsync("style.scss");
+ * console.log(result.css);
+ * ```
+ *
+ * @category Compile
+ * @compatibility dart: "1.45.0", node: false
+ */
+export function compileAsync(
+  path: string,
+  options?: Options<'async'>
+): Promise<CompileResult>;
+
+/**
+ * Synchronously compiles a stylesheet whose contents is `source` to CSS. If it
+ * succeeds it returns a {@link CompileResult}, and if it fails it throws an
+ * {@link Exception}.
+ *
+ * This only allows synchronous {@link Importer}s and {@link CustomFunction}s.
+ *
+ * **Heads up!** When using the [sass-embedded] npm package for single
+ * compilations, **{@link compileStringAsync} is almost always faster than
+ * {@link compileString}**, due to the overhead of emulating synchronous
+ * messaging with worker threads and concurrent compilations being blocked on
+ * main thread.
+ *
+ * If you are running multiple compilations with the [sass-embedded] npm
+ * package, using a {@link Compiler} will provide some speed improvements over
+ * the module-level methods, and an {@link AsyncCompiler} will be much faster.
+ *
+ * [sass-embedded]: https://www.npmjs.com/package/sass-embedded
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass');
+ *
+ * const result = sass.compileString(`
+ * h1 {
+ *   font-size: 40px;
+ *   code {
+ *     font-face: Roboto Mono;
+ *   }
+ * }`);
+ * console.log(result.css);
+ * ```
+ *
+ * @category Compile
+ * @compatibility dart: "1.45.0", node: false
+ */
+export function compileString(
+  source: string,
+  options?: StringOptions<'sync'>
+): CompileResult;
+
+/**
+ * Asynchronously compiles a stylesheet whose contents is `source` to CSS.
+ * Returns a promise that resolves with a {@link CompileResult} if it succeeds
+ * and rejects with an {@link Exception} if it fails.
+ *
+ * This only allows synchronous or asynchronous {@link Importer}s and {@link
+ * CustomFunction}s.
+ *
+ * **Heads up!** When using the `sass` npm package, **{@link compileString} is
+ * almost twice as fast as {@link compileStringAsync}**, due to the overhead
+ * of making the entire evaluation process asynchronous.
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass');
+ *
+ * const result = await sass.compileStringAsync(`
+ * h1 {
+ *   font-size: 40px;
+ *   code {
+ *     font-face: Roboto Mono;
+ *   }
+ * }`);
+ * console.log(result.css);
+ * ```
+ *
+ * @category Compile
+ * @compatibility dart: "1.45.0", node: false
+ */
+export function compileStringAsync(
+  source: string,
+  options?: StringOptions<'async'>
+): Promise<CompileResult>;
+
+/**
+ * Creates a synchronous {@link Compiler}. Each compiler instance exposes the
+ * {@link compile} and {@link compileString} methods within the lifespan of the
+ * Compiler. Given identical input, these methods will return results identical
+ * to their counterparts exposed at the module root. To use asynchronous
+ * compilation, use {@link initAsyncCompiler}.
+ *
+ * When calling the compile functions multiple times, using a compiler instance
+ * with the [sass-embedded] npm package is much faster than using the top-level
+ * compilation methods or the [sass] npm package.
+ *
+ * [sass-embedded]: https://www.npmjs.com/package/sass-embedded
+ *
+ * [sass]: https://www.npmjs.com/package/sass
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass');
+ * function setup() {
+ *   const compiler = sass.initCompiler();
+ *   const result1 = compiler.compileString('a {b: c}').css;
+ *   const result2 = compiler.compileString('a {b: c}').css;
+ *   compiler.dispose();
+ *
+ *   // throws error
+ *   const result3 = sass.compileString('a {b: c}').css;
+ * }
+ * ```
+ * @category Compile
+ * @compatibility dart: "1.70.0", node: false
+ */
+export function initCompiler(): Compiler;
+
+/**
+ * Creates an asynchronous {@link AsyncCompiler}. Each compiler
+ * instance exposes the {@link compileAsync} and {@link compileStringAsync}
+ * methods within the lifespan of the Compiler. Given identical input, these
+ * methods will return results identical to their counterparts exposed at the
+ * module root. To use synchronous compilation, use {@link initCompiler};
+ *
+ * When calling the compile functions multiple times, using a compiler instance
+ * with the [sass-embedded] npm package is much faster than using the top-level
+ * compilation methods or the [sass] npm package.
+ *
+ * [sass-embedded]: https://www.npmjs.com/package/sass-embedded
+ *
+ * [sass]: https://www.npmjs.com/package/sass
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass');
+ * async function setup() {
+ *   const compiler = await sass.initAsyncCompiler();
+ *   const result1 = await compiler.compileStringAsync('a {b: c}').css;
+ *   const result2 = await compiler.compileStringAsync('a {b: c}').css;
+ *   await compiler.dispose();
+ *
+ *   // throws error
+ *   const result3 = await sass.compileStringAsync('a {b: c}').css;
+ * }
+ * ```
+ * @category Compile
+ * @compatibility dart: "1.70.0", node: false
+ */
+export function initAsyncCompiler(): Promise<AsyncCompiler>;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/deprecations.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/deprecations.d.ts
new file mode 100644
index 00000000..390f361d
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/deprecations.d.ts
@@ -0,0 +1,218 @@
+/**
+ * All of the deprecation types currently used by Sass.
+ *
+ * Any of these IDs or the deprecation objects they point to can be passed to
+ * `fatalDeprecations`, `futureDeprecations`, or `silenceDeprecations`.
+ */
+export interface Deprecations {
+  // START AUTOGENERATED LIST
+  // Checksum: 22d9bdbe92eb39b3c0d6d64ebe1879a431c0037e
+
+  /**
+   * Deprecation for passing a string directly to meta.call().
+   *
+   * This deprecation was active in the first version of Dart Sass.
+   */
+  'call-string': Deprecation<'call-string'>;
+
+  /**
+   * Deprecation for @elseif.
+   *
+   * This deprecation became active in Dart Sass 1.3.2.
+   */
+  elseif: Deprecation<'elseif'>;
+
+  /**
+   * Deprecation for @-moz-document.
+   *
+   * This deprecation became active in Dart Sass 1.7.2.
+   */
+  'moz-document': Deprecation<'moz-document'>;
+
+  /**
+   * Deprecation for imports using relative canonical URLs.
+   *
+   * This deprecation became active in Dart Sass 1.14.2.
+   */
+  'relative-canonical': Deprecation<'relative-canonical'>;
+
+  /**
+   * Deprecation for declaring new variables with !global.
+   *
+   * This deprecation became active in Dart Sass 1.17.2.
+   */
+  'new-global': Deprecation<'new-global'>;
+
+  /**
+   * Deprecation for using color module functions in place of plain CSS functions.
+   *
+   * This deprecation became active in Dart Sass 1.23.0.
+   */
+  'color-module-compat': Deprecation<'color-module-compat'>;
+
+  /**
+   * Deprecation for / operator for division.
+   *
+   * This deprecation became active in Dart Sass 1.33.0.
+   */
+  'slash-div': Deprecation<'slash-div'>;
+
+  /**
+   * Deprecation for leading, trailing, and repeated combinators.
+   *
+   * This deprecation became active in Dart Sass 1.54.0.
+   */
+  'bogus-combinators': Deprecation<'bogus-combinators'>;
+
+  /**
+   * Deprecation for ambiguous + and - operators.
+   *
+   * This deprecation became active in Dart Sass 1.55.0.
+   */
+  'strict-unary': Deprecation<'strict-unary'>;
+
+  /**
+   * Deprecation for passing invalid units to built-in functions.
+   *
+   * This deprecation became active in Dart Sass 1.56.0.
+   */
+  'function-units': Deprecation<'function-units'>;
+
+  /**
+   * Deprecation for using !default or !global multiple times for one variable.
+   *
+   * This deprecation became active in Dart Sass 1.62.0.
+   */
+  'duplicate-var-flags': Deprecation<'duplicate-var-flags'>;
+
+  /**
+   * Deprecation for passing null as alpha in the JS API.
+   *
+   * This deprecation became active in Dart Sass 1.62.3.
+   */
+  'null-alpha': Deprecation<'null-alpha'>;
+
+  /**
+   * Deprecation for passing percentages to the Sass abs() function.
+   *
+   * This deprecation became active in Dart Sass 1.65.0.
+   */
+  'abs-percent': Deprecation<'abs-percent'>;
+
+  /**
+   * Deprecation for using the current working directory as an implicit load path.
+   *
+   * This deprecation became active in Dart Sass 1.73.0.
+   */
+  'fs-importer-cwd': Deprecation<'fs-importer-cwd'>;
+
+  /**
+   * Deprecation for function and mixin names beginning with --.
+   *
+   * This deprecation became active in Dart Sass 1.76.0.
+   */
+  'css-function-mixin': Deprecation<'css-function-mixin'>;
+
+  /**
+   * Deprecation for @import rules.
+   *
+   * This deprecation is not yet active, but will be soon.
+   */
+  import: Deprecation<'import'>;
+
+  // END AUTOGENERATED LIST
+
+  /**
+   * Used for any user-emitted deprecation warnings.
+   */
+  'user-authored': Deprecation<'user-authored', 'user'>;
+}
+
+/**
+ * Either a deprecation or its ID, either of which can be passed to any of
+ * the relevant compiler options.
+ *
+ * @category Messages
+ * @compatibility dart: "1.74.0", node: false
+ */
+export type DeprecationOrId = Deprecation | keyof Deprecations;
+
+/**
+ * The possible statuses that each deprecation can have.
+ *
+ * "active" deprecations are currently emitting deprecation warnings.
+ * "future" deprecations are not yet active, but will be in the future.
+ * "obsolete" deprecations were once active, but no longer are.
+ *
+ * The only "user" deprecation is "user-authored", which is used for deprecation
+ * warnings coming from user code.
+ *
+ * @category Messages
+ * @compatibility dart: "1.74.0", node: false
+ */
+export type DeprecationStatus = 'active' | 'user' | 'future' | 'obsolete';
+
+/**
+ * A deprecated feature in the language.
+ *
+ * @category Messages
+ * @compatibility dart: "1.74.0", node: false
+ */
+export interface Deprecation<
+  id extends keyof Deprecations = keyof Deprecations,
+  status extends DeprecationStatus = DeprecationStatus
+> {
+  /** The unique ID of this deprecation. */
+  id: id;
+
+  /** The current status of this deprecation. */
+  status: status;
+
+  /** A human-readable description of this deprecation. */
+  description?: string;
+
+  /** The version this deprecation first became active in. */
+  deprecatedIn: status extends 'future' | 'user' ? null : Version;
+
+  /** The version this deprecation became obsolete in. */
+  obsoleteIn: status extends 'obsolete' ? Version : null;
+}
+
+/**
+ * A semantic version of the compiler.
+ *
+ * @category Messages
+ * @compatibility dart: "1.74.0", node: false
+ */
+export class Version {
+  /**
+   * Constructs a new version.
+   *
+   * All components must be non-negative integers.
+   *
+   * @param major - The major version.
+   * @param minor - The minor version.
+   * @param patch - The patch version.
+   */
+  constructor(major: number, minor: number, patch: number);
+  readonly major: number;
+  readonly minor: number;
+  readonly patch: number;
+
+  /**
+   * Parses a version from a string.
+   *
+   * This throws an error if a valid version can't be parsed.
+   *
+   * @param version - A string in the form "major.minor.patch".
+   */
+  static parse(version: string): Version;
+}
+
+/**
+ * An object containing all deprecation types.
+ *
+ * @category Messages
+ * @compatibility dart: "1.74.0", node: false
+ */
+export const deprecations: Deprecations;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/exception.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/exception.d.ts
new file mode 100644
index 00000000..616d652c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/exception.d.ts
@@ -0,0 +1,41 @@
+import {SourceSpan} from './logger';
+
+/**
+ * An exception thrown because a Sass compilation failed.
+ *
+ * @category Other
+ */
+export class Exception extends Error {
+  private constructor();
+
+  /**
+   * A human-friendly representation of the exception.
+   *
+   * Because many tools simply print `Error.message` directly, this includes not
+   * only the textual description of what went wrong (the {@link sassMessage})
+   * but also an indication of where in the Sass stylesheet the error occurred
+   * (the {@link span}) and the Sass stack trace at the point of error (the
+   * {@link sassStack}).
+   */
+  message: string;
+
+  /**
+   * A textual description of what went wrong.
+   *
+   * Unlike {@link message}, this does *not* include representations of {@link
+   * span} or {@link sassStack}.
+   */
+  readonly sassMessage: string;
+
+  /**
+   * A human-friendly representation of the Sass stack trace at the point of
+   * error.
+   */
+  readonly sassStack: string;
+
+  /** The location the error occurred in the Sass file that triggered it. */
+  readonly span: SourceSpan;
+
+  /** Returns the same string as {@link message}. */
+  toString(): string;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/importer.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/importer.d.ts
new file mode 100644
index 00000000..dca42663
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/importer.d.ts
@@ -0,0 +1,465 @@
+import {Syntax} from './options';
+import {PromiseOr} from './util/promise_or';
+
+/**
+ * Contextual information passed to {@link Importer.canonicalize} and {@link
+ * FileImporter.findFileUrl}. Not all importers will need this information to
+ * resolve loads, but some may find it useful.
+ */
+export interface CanonicalizeContext {
+  /**
+   * Whether this is being invoked because of a Sass
+   * `@import` rule, as opposed to a `@use` or `@forward` rule.
+   *
+   * This should *only* be used for determining whether or not to load
+   * [import-only files](https://sass-lang.com/documentation/at-rules/import#import-only-files).
+   */
+  fromImport: boolean;
+
+  /**
+   * The canonical URL of the file that contains the load, if that information
+   * is available.
+   *
+   * For an {@link Importer}, this is only passed when the `url` parameter is a
+   * relative URL _or_ when its [URL scheme] is included in {@link
+   * Importer.nonCanonicalScheme}. This ensures that canonical URLs are always
+   * resolved the same way regardless of context.
+   *
+   * [URL scheme]: https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Web_mechanics/What_is_a_URL#scheme
+   *
+   * For a {@link FileImporter}, this is always available as long as Sass knows
+   * the canonical URL of the containing file.
+   */
+  containingUrl: URL | null;
+}
+
+/**
+ * A special type of importer that redirects all loads to existing files on
+ * disk. Although this is less powerful than a full {@link Importer}, it
+ * automatically takes care of Sass features like resolving partials and file
+ * extensions and of loading the file from disk.
+ *
+ * Like all importers, this implements custom Sass loading logic for [`@use`
+ * rules](https://sass-lang.com/documentation/at-rules/use) and [`@import`
+ * rules](https://sass-lang.com/documentation/at-rules/import). It can be passed
+ * to {@link Options.importers} or {@link StringOptions.importer}.
+ *
+ * @typeParam sync - A `FileImporter<'sync'>`'s {@link findFileUrl} must return
+ * synchronously, but in return it can be passed to {@link compile} and {@link
+ * compileString} in addition to {@link compileAsync} and {@link
+ * compileStringAsync}.
+ *
+ * A `FileImporter<'async'>`'s {@link findFileUrl} may either return
+ * synchronously or asynchronously, but it can only be used with {@link
+ * compileAsync} and {@link compileStringAsync}.
+ *
+ * @example
+ *
+ * ```js
+ * const {pathToFileURL} = require('url');
+ *
+ * sass.compile('style.scss', {
+ *   importers: [{
+ *     // An importer that redirects relative URLs starting with "~" to
+ *     // `node_modules`.
+ *     findFileUrl(url) {
+ *       if (!url.startsWith('~')) return null;
+ *       return new URL(url.substring(1), pathToFileURL('node_modules'));
+ *     }
+ *   }]
+ * });
+ * ```
+ *
+ * @category Importer
+ */
+export interface FileImporter<
+  sync extends 'sync' | 'async' = 'sync' | 'async'
+> {
+  /**
+   * A callback that's called to partially resolve a load (such as
+   * [`@use`](https://sass-lang.com/documentation/at-rules/use) or
+   * [`@import`](https://sass-lang.com/documentation/at-rules/import)) to a file
+   * on disk.
+   *
+   * Unlike an {@link Importer}, the compiler will automatically handle relative
+   * loads for a {@link FileImporter}. See {@link Options.importers} for more
+   * details on the way loads are resolved.
+   *
+   * @param url - The loaded URL. Since this might be relative, it's represented
+   * as a string rather than a {@link URL} object.
+   *
+   * @returns An absolute `file:` URL if this importer recognizes the `url`.
+   * This may be only partially resolved: the compiler will automatically look
+   * for [partials](https://sass-lang.com/documentation/at-rules/use#partials),
+   * [index files](https://sass-lang.com/documentation/at-rules/use#index-files),
+   * and file extensions based on the returned URL. An importer may also return
+   * a fully resolved URL if it so chooses.
+   *
+   * If this importer doesn't recognize the URL, it should return `null` instead
+   * to allow other importers or {@link Options.loadPaths | load paths} to
+   * handle it.
+   *
+   * This may also return a `Promise`, but if it does the importer may only be
+   * passed to {@link compileAsync} and {@link compileStringAsync}, not {@link
+   * compile} or {@link compileString}.
+   *
+   * @throws any - If this importer recognizes `url` but determines that it's
+   * invalid, it may throw an exception that will be wrapped by Sass. If the
+   * exception object has a `message` property, it will be used as the wrapped
+   * exception's message; otherwise, the exception object's `toString()` will be
+   * used. This means it's safe for importers to throw plain strings.
+   */
+  findFileUrl(
+    url: string,
+    context: CanonicalizeContext
+  ): PromiseOr<URL | null, sync>;
+
+  /** @hidden */
+  canonicalize?: never;
+}
+
+/**
+ * An object that implements custom Sass loading logic for [`@use`
+ * rules](https://sass-lang.com/documentation/at-rules/use) and [`@import`
+ * rules](https://sass-lang.com/documentation/at-rules/import). It can be passed
+ * to {@link Options.importers} or {@link StringOptions.importer}.
+ *
+ * Importers that simply redirect to files on disk are encouraged to use the
+ * {@link FileImporter} interface instead.
+ *
+ * ### Resolving a Load
+ *
+ * This is the process of resolving a load using a custom importer:
+ *
+ * - The compiler encounters `@use "db:foo/bar/baz"`.
+ * - It calls {@link canonicalize} with `"db:foo/bar/baz"`.
+ * - {@link canonicalize} returns `new URL("db:foo/bar/baz/_index.scss")`.
+ * - If the compiler has already loaded a stylesheet with this canonical URL, it
+ *   re-uses the existing module.
+ * - Otherwise, it calls {@link load} with `new
+ *   URL("db:foo/bar/baz/_index.scss")`.
+ * - {@link load} returns an {@link ImporterResult} that the compiler uses as
+ *   the contents of the module.
+ *
+ * See {@link Options.importers} for more details on the way loads are resolved
+ * using multiple importers and load paths.
+ *
+ * @typeParam sync - An `Importer<'sync'>`'s {@link canonicalize} and {@link
+ * load} must return synchronously, but in return it can be passed to {@link
+ * compile} and {@link compileString} in addition to {@link compileAsync} and
+ * {@link compileStringAsync}.
+ *
+ * An `Importer<'async'>`'s {@link canonicalize} and {@link load} may either
+ * return synchronously or asynchronously, but it can only be used with {@link
+ * compileAsync} and {@link compileStringAsync}.
+ *
+ * @example
+ *
+ * ```js
+ * sass.compile('style.scss', {
+ *   // An importer for URLs like `bgcolor:orange` that generates a
+ *   // stylesheet with the given background color.
+ *   importers: [{
+ *     canonicalize(url) {
+ *       if (!url.startsWith('bgcolor:')) return null;
+ *       return new URL(url);
+ *     },
+ *     load(canonicalUrl) {
+ *       return {
+ *         contents: `body {background-color: ${canonicalUrl.pathname}}`,
+ *         syntax: 'scss'
+ *       };
+ *     }
+ *   }]
+ * });
+ * ```
+ *
+ * @category Importer
+ */
+export interface Importer<sync extends 'sync' | 'async' = 'sync' | 'async'> {
+  /**
+   * If `url` is recognized by this importer, returns its canonical format.
+   *
+   * If Sass has already loaded a stylesheet with the returned canonical URL, it
+   * re-uses the existing parse tree (and the loaded module for `@use`). This
+   * means that importers **must ensure** that the same canonical URL always
+   * refers to the same stylesheet, *even across different importers*. As such,
+   * importers are encouraged to use unique URL schemes to disambiguate between
+   * one another.
+   *
+   * As much as possible, custom importers should canonicalize URLs the same way
+   * as the built-in filesystem importer:
+   *
+   * - The importer should look for stylesheets by adding the prefix `_` to the
+   *   URL's basename, and by adding the extensions `.sass` and `.scss` if the
+   *   URL doesn't already have one of those extensions. For example, if the
+   *   URL was `foo/bar/baz`, the importer would look for:
+   *   - `foo/bar/baz.sass`
+   *   - `foo/bar/baz.scss`
+   *   - `foo/bar/_baz.sass`
+   *   - `foo/bar/_baz.scss`
+   *
+   *   If the URL was `foo/bar/baz.scss`, the importer would just look for:
+   *   - `foo/bar/baz.scss`
+   *   - `foo/bar/_baz.scss`
+   *
+   *   If the importer finds a stylesheet at more than one of these URLs, it
+   *   should throw an exception indicating that the URL is ambiguous. Note that
+   *   if the extension is explicitly specified, a stylesheet with the opposite
+   *   extension is allowed to exist.
+   *
+   * - If none of the possible paths is valid, the importer should perform the
+   *   same resolution on the URL followed by `/index`. In the example above,
+   *   it would look for:
+   *   - `foo/bar/baz/index.sass`
+   *   - `foo/bar/baz/index.scss`
+   *   - `foo/bar/baz/_index.sass`
+   *   - `foo/bar/baz/_index.scss`
+   *
+   *   As above, if the importer finds a stylesheet at more than one of these
+   *   URLs, it should throw an exception indicating that the import is
+   *   ambiguous.
+   *
+   * If no stylesheets are found, the importer should return `null`.
+   *
+   * Calling {@link canonicalize} multiple times with the same URL must return
+   * the same result. Calling {@link canonicalize} with a URL returned by a
+   * previous call to {@link canonicalize} must return that URL.
+   *
+   * Relative loads in stylesheets loaded from an importer are handled by
+   * resolving the loaded URL relative to the canonical URL of the stylesheet
+   * that contains it, and passing that URL back to the importer's {@link
+   * canonicalize} method. For example, suppose the "Resolving a Load" example
+   * {@link Importer | above} returned a stylesheet that contained `@use
+   * "mixins"`:
+   *
+   * - The compiler resolves the URL `mixins` relative to the current
+   *   stylesheet's canonical URL `db:foo/bar/baz/_index.scss` to get
+   *   `db:foo/bar/baz/mixins`.
+   * - It calls {@link canonicalize} with `"db:foo/bar/baz/mixins"`.
+   * - {@link canonicalize} returns `new URL("db:foo/bar/baz/_mixins.scss")`.
+   *
+   * Because of this, {@link canonicalize} must return a meaningful result when
+   * called with a URL relative to one returned by an earlier call to {@link
+   * canonicalize}.
+   *
+   * @param url - The loaded URL. Since this might be relative, it's represented
+   * as a string rather than a {@link URL} object.
+   *
+   * @returns An absolute URL if this importer recognizes the `url`, or `null`
+   * if it doesn't. If this returns `null`, other importers or {@link
+   * Options.loadPaths | load paths} may handle the load.
+   *
+   * This may also return a `Promise`, but if it does the importer may only be
+   * passed to {@link compileAsync} and {@link compileStringAsync}, not {@link
+   * compile} or {@link compileString}.
+   *
+   * @throws any - If this importer recognizes `url` but determines that it's
+   * invalid, it may throw an exception that will be wrapped by Sass. If the
+   * exception object has a `message` property, it will be used as the wrapped
+   * exception's message; otherwise, the exception object's `toString()` will be
+   * used. This means it's safe for importers to throw plain strings.
+   */
+  canonicalize(
+    url: string,
+    context: CanonicalizeContext
+  ): PromiseOr<URL | null, sync>;
+
+  /**
+   * Loads the Sass text for the given `canonicalUrl`, or returns `null` if this
+   * importer can't find the stylesheet it refers to.
+   *
+   * @param canonicalUrl - The canonical URL of the stylesheet to load. This is
+   * guaranteed to come from a call to {@link canonicalize}, although not every
+   * call to {@link canonicalize} will result in a call to {@link load}.
+   *
+   * @returns The contents of the stylesheet at `canonicalUrl` if it can be
+   * loaded, or `null` if it can't.
+   *
+   * This may also return a `Promise`, but if it does the importer may only be
+   * passed to {@link compileAsync} and {@link compileStringAsync}, not {@link
+   * compile} or {@link compileString}.
+   *
+   * @throws any - If this importer finds a stylesheet at `url` but it fails to
+   * load for some reason, or if `url` is uniquely associated with this importer
+   * but doesn't refer to a real stylesheet, the importer may throw an exception
+   * that will be wrapped by Sass. If the exception object has a `message`
+   * property, it will be used as the wrapped exception's message; otherwise,
+   * the exception object's `toString()` will be used. This means it's safe for
+   * importers to throw plain strings.
+   */
+  load(canonicalUrl: URL): PromiseOr<ImporterResult | null, sync>;
+
+  /** @hidden */
+  findFileUrl?: never;
+
+  /**
+   * A URL scheme or set of schemes (without the `:`) that this importer
+   * promises never to use for URLs returned by {@link canonicalize}. If it does
+   * return a URL with one of these schemes, that's an error.
+   *
+   * If this is set, any call to canonicalize for a URL with a non-canonical
+   * scheme will be passed {@link CanonicalizeContext.containingUrl} if it's
+   * known.
+   *
+   * These schemes may only contain lowercase ASCII letters, ASCII numerals,
+   * `+`, `-`, and `.`. They may not be empty.
+   */
+  nonCanonicalScheme?: string | string[];
+}
+
+declare const nodePackageImporterKey: unique symbol;
+
+/**
+ * The built-in Node.js package importer. This loads pkg: URLs from node_modules
+ * according to the standard Node.js resolution algorithm.
+ *
+ * A Node.js package importer is exposed as a class that can be added to the
+ * `importers` option.
+ *
+ *```js
+ * const sass = require('sass');
+ * sass.compileString('@use "pkg:vuetify', {
+ *   importers: [new sass.NodePackageImporter()]
+ * });
+ *```
+ *
+ * ## Writing Sass packages
+ *
+ * Package authors can control what is exposed to their users through their
+ * `package.json` manifest. The recommended method is to add a `sass`
+ * conditional export to `package.json`.
+ *
+ * ```json
+ * // node_modules/uicomponents/package.json
+ * {
+ *   "exports": {
+ *     ".": {
+ *       "sass": "./src/scss/index.scss",
+ *       "import": "./dist/js/index.mjs",
+ *       "default": "./dist/js/index.js"
+ *     }
+ *   }
+ * }
+ * ```
+ *
+ * This allows a package user to write `@use "pkg:uicomponents"` to load the
+ * file at `node_modules/uicomponents/src/scss/index.scss`.
+ *
+ * The Node.js package importer supports the variety of formats supported by
+ * Node.js [package entry points], allowing authors to expose multiple subpaths.
+ *
+ * [package entry points]:
+ * https://nodejs.org/api/packages.html#package-entry-points
+ *
+ * ```json
+ * // node_modules/uicomponents/package.json
+ * {
+ *   "exports": {
+ *     ".": {
+ *       "sass": "./src/scss/index.scss",
+ *     },
+ *     "./colors.scss": {
+ *       "sass": "./src/scss/_colors.scss",
+ *     },
+ *     "./theme/*.scss": {
+ *       "sass": "./src/scss/theme/*.scss",
+ *     },
+ *   }
+ * }
+ * ```
+ *
+ * This allows a package user to write:
+ *
+ * - `@use "pkg:uicomponents";` to import the root export.
+ * - `@use "pkg:uicomponents/colors";` to import the colors partial.
+ * - `@use "pkg:uicomponents/theme/purple";` to import a purple theme.
+ *
+ * Note that while library users can rely on the importer to resolve
+ * [partials](https://sass-lang.com/documentation/at-rules/use#partials), [index
+ * files](https://sass-lang.com/documentation/at-rules/use#index-files), and
+ * extensions, library authors must specify the entire file path in `exports`.
+ *
+ * In addition to the `sass` condition, the `style` condition is also
+ * acceptable. Sass will match the `default` condition if it's a relevant file
+ * type, but authors are discouraged from relying on this. Notably, the key
+ * order matters, and the importer will resolve to the first value with a key
+ * that is `sass`, `style`, or `default`, so you should always put `default`
+ * last.
+ *
+ * To help package authors who haven't transitioned to package entry points
+ * using the `exports` field, the Node.js package importer provides several
+ * fallback options. If the `pkg:` URL does not have a subpath, the Node.js
+ * package importer will look for a `sass` or `style` key at the root of
+ * `package.json`.
+ *
+ * ```json
+ * // node_modules/uicomponents/package.json
+ * {
+ *   "sass": "./src/scss/index.scss",
+ * }
+ * ```
+ *
+ * This allows a user to write `@use "pkg:uicomponents";` to import the
+ * `index.scss` file.
+ *
+ * Finally, the Node.js package importer will look for an `index` file at the
+ * package root, resolving partials and extensions. For example, if the file
+ * `_index.scss` exists in the package root of `uicomponents`, a user can import
+ * that with `@use "pkg:uicomponents";`.
+ *
+ * If a `pkg:` URL includes a subpath that doesn't have a match in package entry
+ * points, the Node.js importer will attempt to find that file relative to the
+ * package root, resolving for file extensions, partials and index files. For
+ * example, if the file `src/sass/_colors.scss` exists in the `uicomponents`
+ * package, a user can import that file using `@use
+ * "pkg:uicomponents/src/sass/colors";`.
+ *
+ * @compatibility dart: "1.71.0", node: false
+ * @category Importer
+ */
+export class NodePackageImporter {
+  /** Used to distinguish this type from any arbitrary object. */
+  private readonly [nodePackageImporterKey]: true;
+
+  /**
+   * The NodePackageImporter has an optional `entryPointDirectory` option, which
+   * is the directory where the Node Package Importer should start when
+   * resolving `pkg:` URLs in sources other than files on disk. This will be
+   * used as the `parentURL` in the [Node Module
+   * Resolution](https://nodejs.org/api/esm.html#resolution-algorithm-specification)
+   * algorithm.
+   *
+   * In order to be found by the Node Package Importer, a package will need to
+   * be inside a node_modules folder located in the `entryPointDirectory`, or
+   * one of its parent directories, up to the filesystem root.
+   *
+   * Relative paths will be resolved relative to the current working directory.
+   * If a path is not provided, this defaults to the parent directory of the
+   * Node.js entrypoint. If that's not available, this will throw an error.
+   */
+  constructor(entryPointDirectory?: string);
+}
+
+/**
+ * The result of successfully loading a stylesheet with an {@link Importer}.
+ *
+ * @category Importer
+ */
+export interface ImporterResult {
+  /** The contents of the stylesheet. */
+  contents: string;
+
+  /** The syntax with which to parse {@link contents}. */
+  syntax: Syntax;
+
+  /**
+   * The URL to use to link to the loaded stylesheet's source code in source
+   * maps. A `file:` URL is ideal because it's accessible to both browsers and
+   * other build tools, but an `http:` URL is also acceptable.
+   *
+   * If this isn't set, it defaults to a `data:` URL that contains the contents
+   * of the loaded stylesheet.
+   */
+  sourceMapUrl?: URL;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/index.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/index.d.ts
new file mode 100644
index 00000000..f0df6809
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/index.d.ts
@@ -0,0 +1,104 @@
+// This is a mirror of the JS API definitions in `spec/js-api`, but with comments
+// written to provide user-facing documentation rather than to specify behavior for
+// implementations.
+
+export {
+  AsyncCompiler,
+  CompileResult,
+  Compiler,
+  compile,
+  compileAsync,
+  compileString,
+  compileStringAsync,
+  initCompiler,
+  initAsyncCompiler,
+} from './compile';
+export {
+  deprecations,
+  Deprecation,
+  Deprecations,
+  DeprecationOrId,
+  DeprecationStatus,
+  Version,
+} from './deprecations';
+export {Exception} from './exception';
+export {
+  CanonicalizeContext,
+  FileImporter,
+  Importer,
+  ImporterResult,
+  NodePackageImporter,
+} from './importer';
+export {Logger, SourceSpan, SourceLocation} from './logger';
+export {
+  CustomFunction,
+  Options,
+  OutputStyle,
+  StringOptions,
+  StringOptionsWithImporter,
+  StringOptionsWithoutImporter,
+  Syntax,
+} from './options';
+export {PromiseOr} from './util/promise_or';
+export {
+  CalculationInterpolation,
+  CalculationOperation,
+  CalculationOperator,
+  CalculationValue,
+  ListSeparator,
+  SassArgumentList,
+  SassBoolean,
+  SassCalculation,
+  SassColor,
+  SassFunction,
+  SassList,
+  SassMap,
+  SassMixin,
+  SassNumber,
+  SassString,
+  Value,
+  sassFalse,
+  sassNull,
+  sassTrue,
+} from './value';
+
+// Legacy APIs
+export {LegacyException} from './legacy/exception';
+export {
+  FALSE,
+  LegacyAsyncFunction,
+  LegacyAsyncFunctionDone,
+  LegacyFunction,
+  LegacySyncFunction,
+  LegacyValue,
+  NULL,
+  TRUE,
+  types,
+} from './legacy/function';
+export {
+  LegacyAsyncImporter,
+  LegacyImporter,
+  LegacyImporterResult,
+  LegacyImporterThis,
+  LegacySyncImporter,
+} from './legacy/importer';
+export {
+  LegacySharedOptions,
+  LegacyFileOptions,
+  LegacyStringOptions,
+  LegacyOptions,
+} from './legacy/options';
+export {LegacyPluginThis} from './legacy/plugin_this';
+export {LegacyResult, render, renderSync} from './legacy/render';
+
+/**
+ * Information about the Sass implementation. This always begins with a unique
+ * identifier for the Sass implementation, followed by U+0009 TAB, followed by
+ * its npm package version. Some implementations include additional information
+ * as well, but not in any standardized format.
+ *
+ * * For Dart Sass, the implementation name is `dart-sass`.
+ * * For Node Sass, the implementation name is `node-sass`.
+ * * For the embedded host, the implementation name is `sass-embedded`.
+ */
+export const info: string;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/exception.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/exception.d.ts
new file mode 100644
index 00000000..29d3a54b
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/exception.d.ts
@@ -0,0 +1,55 @@
+/**
+ * The exception type thrown by {@link renderSync} and passed as the error to
+ * {@link render}'s callback.
+ *
+ * @category Legacy
+ * @deprecated This is only thrown by the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link compile}, {@link compileString}, {@link
+ * compileAsync}, and {@link compileStringAsync} instead.
+ */
+export interface LegacyException extends Error {
+  /**
+   * The error message. For Dart Sass, when possible this includes a highlighted
+   * indication of where in the source file the error occurred as well as the
+   * Sass stack trace.
+   */
+  message: string;
+
+  /**
+   * The error message. For Dart Sass, this is the same as the result of calling
+   * {@link toString}, which is itself the same as {@link message} but with the
+   * prefix "Error:".
+   */
+  formatted: string;
+
+  /**
+   * The (1-based) line number on which the error occurred, if this exception is
+   * associated with a specific Sass file location.
+   */
+  line?: number;
+
+  /**
+   * The (1-based) column number within {@link line} at which the error
+   * occurred, if this exception is associated with a specific Sass file
+   * location.
+   */
+  column?: number;
+
+  /**
+   * Analogous to the exit code for an executable. `1` for an error caused by a
+   * Sass file, `3` for any other type of error.
+   */
+  status: number;
+
+  /**
+   * If this exception was caused by an error in a Sass file, this will
+   * represent the Sass file's location. It can be in one of three formats:
+   *
+   * * If the Sass file was loaded from disk, this is the path to that file.
+   * * If the Sass file was generated by an importer, this is its canonical URL.
+   * * If the Sass file was passed as {@link LegacyStringOptions.data} without a
+   *   corresponding {@link LegacyStringOptions.file}, this is the special
+   *   string `"stdin"`.
+   */
+  file?: string;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/function.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/function.d.ts
new file mode 100644
index 00000000..7c27eb83
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/function.d.ts
@@ -0,0 +1,757 @@
+import {LegacyPluginThis} from './plugin_this';
+
+/**
+ * A synchronous callback that implements a custom Sass function. This can be
+ * passed to {@link LegacySharedOptions.functions} for either {@link render} or
+ * {@link renderSync}.
+ *
+ * If this throws an error, Sass will treat that as the function failing with
+ * that error message.
+ *
+ * ```js
+ * const result = sass.renderSync({
+ *   file: 'style.scss',
+ *   functions: {
+ *     "sum($arg1, $arg2)": (arg1, arg2) => {
+ *       if (!(arg1 instanceof sass.types.Number)) {
+ *         throw new Error("$arg1: Expected a number");
+ *       } else if (!(arg2 instanceof sass.types.Number)) {
+ *         throw new Error("$arg2: Expected a number");
+ *       }
+ *       return new sass.types.Number(arg1.getValue() + arg2.getValue());
+ *     }
+ *   }
+ * });
+ * ```
+ *
+ * @param args - One argument for each argument that's declared in the signature
+ * that's passed to {@link LegacySharedOptions.functions}. If the signature
+ * [takes arbitrary
+ * arguments](https://sass-lang.com/documentation/at-rules/function#taking-arbitrary-arguments),
+ * they're passed as a single argument list in the last argument.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link CustomFunction} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacySyncFunction = (
+  this: LegacyPluginThis,
+  ...args: LegacyValue[]
+) => LegacyValue;
+
+/**
+ * An asynchronous callback that implements a custom Sass function. This can be
+ * passed to {@link LegacySharedOptions.functions}, but only for {@link render}.
+ *
+ * An asynchronous function must return `undefined`. Its final argument will
+ * always be a callback, which it should call with the result of the function
+ * once it's done running.
+ *
+ * If this throws an error, Sass will treat that as the function failing with
+ * that error message.
+ *
+ * ```js
+ * sass.render({
+ *   file: 'style.scss',
+ *   functions: {
+ *     "sum($arg1, $arg2)": (arg1, arg2, done) => {
+ *       if (!(arg1 instanceof sass.types.Number)) {
+ *         throw new Error("$arg1: Expected a number");
+ *       } else if (!(arg2 instanceof sass.types.Number)) {
+ *         throw new Error("$arg2: Expected a number");
+ *       }
+ *       done(new sass.types.Number(arg1.getValue() + arg2.getValue()));
+ *     }
+ *   }
+ * }, (result, error) => {
+ *   // ...
+ * });
+ * ```
+ *
+ * This is passed one argument for each argument that's declared in the
+ * signature that's passed to {@link LegacySharedOptions.functions}. If the
+ * signature [takes arbitrary
+ * arguments](https://sass-lang.com/documentation/at-rules/function#taking-arbitrary-arguments),
+ * they're passed as a single argument list in the last argument before the
+ * callback.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link CustomFunction} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyAsyncFunction =
+  | ((this: LegacyPluginThis, done: (result: LegacyValue) => void) => void)
+  | ((
+      this: LegacyPluginThis,
+      arg1: LegacyValue,
+      done: LegacyAsyncFunctionDone
+    ) => void)
+  | ((
+      this: LegacyPluginThis,
+      arg1: LegacyValue,
+      arg2: LegacyValue,
+      done: LegacyAsyncFunctionDone
+    ) => void)
+  | ((
+      this: LegacyPluginThis,
+      arg1: LegacyValue,
+      arg2: LegacyValue,
+      arg3: LegacyValue,
+      done: LegacyAsyncFunctionDone
+    ) => void)
+  | ((
+      this: LegacyPluginThis,
+      arg1: LegacyValue,
+      arg2: LegacyValue,
+      arg3: LegacyValue,
+      arg4: LegacyValue,
+      done: LegacyAsyncFunctionDone
+    ) => void)
+  | ((
+      this: LegacyPluginThis,
+      arg1: LegacyValue,
+      arg2: LegacyValue,
+      arg3: LegacyValue,
+      arg4: LegacyValue,
+      arg5: LegacyValue,
+      done: LegacyAsyncFunctionDone
+    ) => void)
+  | ((
+      this: LegacyPluginThis,
+      arg1: LegacyValue,
+      arg2: LegacyValue,
+      arg3: LegacyValue,
+      arg4: LegacyValue,
+      arg5: LegacyValue,
+      arg6: LegacyValue,
+      done: LegacyAsyncFunctionDone
+    ) => void)
+  | ((
+      this: LegacyPluginThis,
+      ...args: [...LegacyValue[], LegacyAsyncFunctionDone]
+    ) => void);
+
+/**
+ * The function called by a {@link LegacyAsyncFunction} to indicate that it's
+ * finished.
+ *
+ * @param result - If this is a {@link LegacyValue}, that indicates that the
+ * function call completed successfully. If it's a {@link types.Error}, that
+ * indicates that the function call failed.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link CustomFunction} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyAsyncFunctionDone = (
+  result: LegacyValue | types.Error
+) => void;
+
+/**
+ * A callback that implements a custom Sass function. For {@link renderSync},
+ * this must be a {@link LegacySyncFunction} which returns its result directly;
+ * for {@link render}, it may be either a {@link LegacySyncFunction} or a {@link
+ * LegacyAsyncFunction} which calls a callback with its result.
+ *
+ * See {@link LegacySharedOptions.functions} for more details.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link CustomFunction} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyFunction<sync extends 'sync' | 'async'> = sync extends 'async'
+  ? LegacySyncFunction | LegacyAsyncFunction
+  : LegacySyncFunction;
+
+/**
+ * A type representing all the possible values that may be passed to or returned
+ * from a {@link LegacyFunction}.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Value} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyValue =
+  | types.Null
+  | types.Number
+  | types.String
+  | types.Boolean
+  | types.Color
+  | types.List
+  | types.Map;
+
+/**
+ * A shorthand for `sass.types.Boolean.TRUE`.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link sassTrue} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export const TRUE: types.Boolean<true>;
+
+/**
+ * A shorthand for `sass.types.Boolean.FALSE`.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link sassFalse} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export const FALSE: types.Boolean<false>;
+
+/**
+ * A shorthand for `sass.types.Null.NULL`.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link sassNull} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export const NULL: types.Null;
+
+/**
+ * The namespace for value types used in the legacy function API.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Value} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export namespace types {
+  /**
+   * The class for Sass's singleton [`null`
+   * value](https://sass-lang.com/documentation/values/null). The value itself
+   * can be accessed through the {@link NULL} field.
+   */
+  export class Null {
+    /** Sass's singleton `null` value. */
+    static readonly NULL: Null;
+  }
+
+  /**
+   * Sass's [number type](https://sass-lang.com/documentation/values/numbers).
+   */
+  export class Number {
+    /**
+     * @param value - The numeric value of the number.
+     *
+     * @param unit - If passed, the number's unit.
+     *
+     * Complex units can be represented as
+     * `<unit>*<unit>*.../<unit>*<unit>*...`, with numerator units on the
+     * left-hand side of the `/` and denominator units on the right. A number
+     * with only numerator units may omit the `/` and the units after it, and a
+     * number with only denominator units may be represented
+     * with no units before the `/`.
+     *
+     * @example
+     *
+     * ```scss
+     * new sass.types.Number(0.5); // == 0.5
+     * new sass.types.Number(10, "px"); // == 10px
+     * new sass.types.Number(10, "px*px"); // == 10px * 1px
+     * new sass.types.Number(10, "px/s"); // == math.div(10px, 1s)
+     * new sass.types.Number(10, "px*px/s*s"); // == 10px * math.div(math.div(1px, 1s), 1s)
+     * ```
+     */
+    constructor(value: number, unit?: string);
+
+    /**
+     * Returns the value of the number, ignoring units.
+     *
+     * **Heads up!** This means that `96px` and `1in` will return different
+     * values, even though they represent the same length.
+     *
+     * @example
+     *
+     * ```js
+     * const number = new sass.types.Number(10, "px");
+     * number.getValue(); // 10
+     * ```
+     */
+    getValue(): number;
+
+    /**
+     * Destructively modifies this number by setting its numeric value to
+     * `value`, independent of its units.
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setValue(value: number): void;
+
+    /**
+     * Returns a string representation of this number's units. Complex units are
+     * returned in the same format that {@link constructor} accepts them.
+     *
+     * @example
+     *
+     * ```js
+     * // number is `10px`.
+     * number.getUnit(); // "px"
+     *
+     * // number is `math.div(10px, 1s)`.
+     * number.getUnit(); // "px/s"
+     * ```
+     */
+    getUnit(): string;
+
+    /**
+     * Destructively modifies this number by setting its units to `unit`,
+     * independent of its numeric value. Complex units are specified in the same
+     * format as {@link constructor}.
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setUnit(unit: string): void;
+  }
+
+  /**
+   * Sass's [string type](https://sass-lang.com/documentation/values/strings).
+   *
+   * **Heads up!** This API currently provides no way of distinguishing between
+   * a [quoted](https://sass-lang.com/documentation/values/strings#quoted) and
+   * [unquoted](https://sass-lang.com/documentation/values/strings#unquoted)
+   * string.
+   */
+  export class String {
+    /**
+     * Creates an unquoted string with the given contents.
+     *
+     * **Heads up!** This API currently provides no way of creating a
+     * [quoted](https://sass-lang.com/documentation/values/strings#quoted)
+     * string.
+     */
+    constructor(value: string);
+
+    /**
+     * Returns the contents of the string. If the string contains escapes,
+     * those escapes are included literally if it’s
+     * [unquoted](https://sass-lang.com/documentation/values/strings#unquoted),
+     * while the values of the escapes are included if it’s
+     * [quoted](https://sass-lang.com/documentation/values/strings#quoted).
+     *
+     * @example
+     *
+     * ```
+     * // string is `Arial`.
+     * string.getValue(); // "Arial"
+     *
+     * // string is `"Helvetica Neue"`.
+     * string.getValue(); // "Helvetica Neue"
+     *
+     * // string is `\1F46D`.
+     * string.getValue(); // "\\1F46D"
+     *
+     * // string is `"\1F46D"`.
+     * string.getValue(); // "👭"
+     * ```
+     */
+    getValue(): string;
+
+    /**
+     * Destructively modifies this string by setting its numeric value to
+     * `value`.
+     *
+     * **Heads up!** Even if the string was originally quoted, this will cause
+     * it to become unquoted.
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setValue(value: string): void;
+  }
+
+  /**
+   * Sass's [boolean type](https://sass-lang.com/documentation/values/booleans).
+   *
+   * Custom functions should respect Sass’s notion of
+   * [truthiness](https://sass-lang.com/documentation/at-rules/control/if#truthiness-and-falsiness)
+   * by treating `false` and `null` as falsey and everything else as truthy.
+   *
+   * **Heads up!** Boolean values can't be constructed, they can only be
+   * accessed through the {@link TRUE} and {@link FALSE} constants.
+   */
+  export class Boolean<T extends boolean = boolean> {
+    /**
+     * Returns `true` if this is Sass's `true` value and `false` if this is
+     * Sass's `false` value.
+     *
+     * @example
+     *
+     * ```js
+     * // boolean is `true`.
+     * boolean.getValue(); // true
+     * boolean === sass.types.Boolean.TRUE; // true
+     *
+     * // boolean is `false`.
+     * boolean.getValue(); // false
+     * boolean === sass.types.Boolean.FALSE; // true
+     * ```
+     */
+    getValue(): T;
+
+    /** Sass's `true` value. */
+    static readonly TRUE: Boolean<true>;
+
+    /** Sass's `false` value. */
+    static readonly FALSE: Boolean<false>;
+  }
+
+  /**
+   * Sass's [color type](https://sass-lang.com/documentation/values/colors).
+   */
+  export class Color {
+    /**
+     * Creates a new Sass color with the given red, green, blue, and alpha
+     * channels. The red, green, and blue channels must be integers between 0
+     * and 255 (inclusive), and alpha must be between 0 and 1 (inclusive).
+     *
+     * @example
+     *
+     * ```js
+     * new sass.types.Color(107, 113, 127); // #6b717f
+     * new sass.types.Color(0, 0, 0, 0); // rgba(0, 0, 0, 0)
+     * ```
+     */
+    constructor(r: number, g: number, b: number, a?: number);
+
+    /**
+     * Creates a new Sass color with alpha, red, green, and blue channels taken
+     * from respective two-byte chunks of a hexidecimal number.
+     *
+     * @example
+     *
+     * ```js
+     * new sass.types.Color(0xff6b717f); // #6b717f
+     * new sass.types.Color(0x00000000); // rgba(0, 0, 0, 0)
+     * ```
+     */
+    constructor(argb: number);
+
+    /**
+     * Returns the red channel of the color as an integer from 0 to 255.
+     *
+     * @example
+     *
+     * ```js
+     * // color is `#6b717f`.
+     * color.getR(); // 107
+     *
+     * // color is `#b37399`.
+     * color.getR(); // 179
+     * ```
+     */
+    getR(): number;
+
+    /**
+     * Sets the red channel of the color. The value must be an integer between 0
+     * and 255 (inclusive).
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setR(value: number): void;
+
+    /**
+     * Returns the green channel of the color as an integer from 0 to 255.
+     *
+     * @example
+     *
+     * ```js
+     * // color is `#6b717f`.
+     * color.getG(); // 113
+     *
+     * // color is `#b37399`.
+     * color.getG(); // 115
+     * ```
+     */
+    getG(): number;
+
+    /**
+     * Sets the green channel of the color. The value must be an integer between
+     * 0 and 255 (inclusive).
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setG(value: number): void;
+
+    /**
+     * Returns the blue channel of the color as an integer from 0 to 255.
+     *
+     * @example
+     *
+     * ```js
+     * // color is `#6b717f`.
+     * color.getB(); // 127
+     *
+     * // color is `#b37399`.
+     * color.getB(); // 153
+     * ```
+     */
+    getB(): number;
+
+    /**
+     * Sets the blue channel of the color. The value must be an integer between
+     * 0 and 255 (inclusive).
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setB(value: number): void;
+
+    /**
+     * Returns the alpha channel of the color as a number from 0 to 1.
+     *
+     * @example
+     *
+     * ```js
+     * // color is `#6b717f`.
+     * color.getA(); // 1
+     *
+     * // color is `transparent`.
+     * color.getA(); // 0
+     * ```
+     */
+    getA(): number;
+
+    /**
+     * Sets the alpha channel of the color. The value must be between 0 and 1
+     * (inclusive).
+     *
+     * @deprecated Use {@link constructor} instead.
+     */
+    setA(value: number): void;
+  }
+
+  /**
+   * Sass's [list type](https://sass-lang.com/documentation/values/lists).
+   *
+   * **Heads up!** This list type’s methods use 0-based indexing, even though
+   * within Sass lists use 1-based indexing. These methods also don’t support
+   * using negative numbers to index backwards from the end of the list.
+   */
+  export class List {
+    /**
+     * Creates a new Sass list.
+     *
+     * **Heads up!** The initial values of the list elements are undefined.
+     * These elements must be set using {@link setValue} before accessing them
+     * or passing the list back to Sass.
+     *
+     * @example
+     *
+     * ```js
+     * const list = new sass.types.List(3);
+     * list.setValue(0, new sass.types.Number(10, "px"));
+     * list.setValue(1, new sass.types.Number(15, "px"));
+     * list.setValue(2, new sass.types.Number(32, "px"));
+     * list; // 10px, 15px, 32px
+     * ```
+     *
+     * @param length - The number of (initially undefined) elements in the list.
+     * @param commaSeparator - If `true`, the list is comma-separated; otherwise,
+     * it's space-separated. Defaults to `true`.
+     */
+    constructor(length: number, commaSeparator?: boolean);
+
+    /**
+     * Returns the element at `index`, or `undefined` if that value hasn't yet
+     * been set.
+     *
+     * @example
+     *
+     * ```js
+     * // list is `10px, 15px, 32px`
+     * list.getValue(0); // 10px
+     * list.getValue(2); // 32px
+     * ```
+     *
+     * @param index - A (0-based) index into this list.
+     * @throws `Error` if `index` is less than 0 or greater than or equal to the
+     * number of elements in this list.
+     */
+    getValue(index: number): LegacyValue | undefined;
+
+    /**
+     * Sets the element at `index` to `value`.
+     *
+     * @example
+     *
+     * ```js
+     * // list is `10px, 15px, 32px`
+     * list.setValue(1, new sass.types.Number(18, "px"));
+     * list; // 10px, 18px, 32px
+     * ```
+     *
+     * @param index - A (0-based) index into this list.
+     * @throws `Error` if `index` is less than 0 or greater than or equal to the
+     * number of elements in this list.
+     */
+    setValue(index: number, value: LegacyValue): void;
+
+    /**
+     * Returns `true` if this list is comma-separated and `false` otherwise.
+     *
+     * @example
+     *
+     * ```js
+     * // list is `10px, 15px, 32px`
+     * list.getSeparator(); // true
+     *
+     * // list is `1px solid`
+     * list.getSeparator(); // false
+     * ```
+     */
+    getSeparator(): boolean;
+
+    /**
+     * Sets whether the list is comma-separated.
+     *
+     * @param isComma - `true` to make the list comma-separated, `false` otherwise.
+     */
+    setSeparator(isComma: boolean): void;
+
+    /**
+     * Returns the number of elements in the list.
+     *
+     * @example
+     *
+     * ```js
+     * // list is `10px, 15px, 32px`
+     * list.getLength(); // 3
+     *
+     * // list is `1px solid`
+     * list.getLength(); // 2
+     * ```
+     */
+    getLength(): number;
+  }
+
+  /**
+   * Sass's [map type](https://sass-lang.com/documentation/values/maps).
+   *
+   * **Heads up!** This map type is represented as a list of key-value pairs
+   * rather than a mapping from keys to values. The only way to find the value
+   * associated with a given key is to iterate through the map checking for that
+   * key. Maps created through this API are still forbidden from having duplicate
+   * keys.
+   */
+  export class Map {
+    /**
+     * Creates a new Sass map.
+     *
+     * **Heads up!** The initial keys and values of the map are undefined. They
+     * must be set using {@link setKey} and {@link setValue} before accessing
+     * them or passing the map back to Sass.
+     *
+     * @example
+     *
+     * ```js
+     * const map = new sass.types.Map(2);
+     * map.setKey(0, new sass.types.String("width"));
+     * map.setValue(0, new sass.types.Number(300, "px"));
+     * map.setKey(1, new sass.types.String("height"));
+     * map.setValue(1, new sass.types.Number(100, "px"));
+     * map; // (width: 300px, height: 100px)
+     * ```
+     *
+     * @param length - The number of (initially undefined) key/value pairs in the map.
+     */
+    constructor(length: number);
+
+    /**
+     * Returns the value in the key/value pair at `index`.
+     *
+     * @example
+     *
+     * ```js
+     * // map is `(width: 300px, height: 100px)`
+     * map.getValue(0); // 300px
+     * map.getValue(1); // 100px
+     * ```
+     *
+     * @param index -  A (0-based) index of a key/value pair in this map.
+     * @throws `Error` if `index` is less than 0 or greater than or equal to the
+     * number of pairs in this map.
+     */
+    getValue(index: number): LegacyValue;
+
+    /**
+     * Sets the value in the key/value pair at `index` to `value`.
+     *
+     * @example
+     *
+     * ```js
+     * // map is `("light": 200, "medium": 400, "bold": 600)`
+     * map.setValue(1, new sass.types.Number(300));
+     * map; // ("light": 200, "medium": 300, "bold": 600)
+     * ```
+     *
+     * @param index -  A (0-based) index of a key/value pair in this map.
+     * @throws `Error` if `index` is less than 0 or greater than or equal to the
+     * number of pairs in this map.
+     */
+    setValue(index: number, value: LegacyValue): void;
+
+    /**
+     * Returns the key in the key/value pair at `index`.
+     *
+     * @example
+     *
+     * ```js
+     * // map is `(width: 300px, height: 100px)`
+     * map.getKey(0); // width
+     * map.getKey(1); // height
+     * ```
+     *
+     * @param index -  A (0-based) index of a key/value pair in this map.
+     * @throws `Error` if `index` is less than 0 or greater than or equal to the
+     * number of pairs in this map.
+     */
+    getKey(index: number): LegacyValue;
+
+    /**
+     * Sets the value in the key/value pair at `index` to `value`.
+     *
+     * @example
+     *
+     * ```js
+     * // map is `("light": 200, "medium": 400, "bold": 600)`
+     * map.setValue(1, new sass.types.String("lighter"));
+     * map; // ("lighter": 200, "medium": 300, "bold": 600)
+     * ```
+     *
+     * @param index -  A (0-based) index of a key/value pair in this map.
+     * @throws `Error` if `index` is less than 0 or greater than or equal to the
+     * number of pairs in this map.
+     */
+    setKey(index: number, key: LegacyValue): void;
+
+    /**
+     * Returns the number of key/value pairs in this map.
+     *
+     * @example
+     *
+     * ```js
+     * // map is `("light": 200, "medium": 400, "bold": 600)`
+     * map.getLength(); // 3
+     *
+     * // map is `(width: 300px, height: 100px)`
+     * map.getLength(); // 2
+     * ```
+     */
+    getLength(): number;
+  }
+
+  /**
+   * An error that can be returned from a Sass function to signal that it
+   * encountered an error. This is the only way to signal an error
+   * asynchronously from a {@link LegacyAsyncFunction}.
+   */
+  export class Error {
+    constructor(message: string);
+  }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/importer.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/importer.d.ts
new file mode 100644
index 00000000..4b7777a3
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/importer.d.ts
@@ -0,0 +1,169 @@
+import {LegacyPluginThis} from './plugin_this';
+
+/**
+ * The value of `this` in the context of a {@link LegacyImporter} function.
+ *
+ * @category Legacy
+ * @deprecated This is only used by the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Importer} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+interface LegacyImporterThis extends LegacyPluginThis {
+  /**
+   * Whether the importer is being invoked because of a Sass `@import` rule, as
+   * opposed to a `@use` or `@forward` rule.
+   *
+   * This should *only* be used for determining whether or not to load
+   * [import-only files](https://sass-lang.com/documentation/at-rules/import#import-only-files).
+   *
+   * @compatibility dart: "1.33.0", node: false
+   */
+  fromImport: boolean;
+}
+
+/**
+ * The result of running a {@link LegacyImporter}. It must be one of the
+ * following types:
+ *
+ * * An object with the key `contents` whose value is the contents of a stylesheet
+ *   (in SCSS syntax). This causes Sass to load that stylesheet’s contents.
+ *
+ * * An object with the key `file` whose value is a path on disk. This causes Sass
+ *   to load that file as though it had been imported directly.
+ *
+ * * `null`, which indicates that it doesn’t recognize the URL and another
+ *   importer should be tried instead.
+ *
+ * * An [Error](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error)
+ *   object, indicating that importing failed.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link ImporterResult} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyImporterResult =
+  | {file: string}
+  | {contents: string}
+  | Error
+  | null;
+
+/**
+ * A synchronous callback that implements custom Sass loading logic for
+ * [`@import` rules](https://sass-lang.com/documentation/at-rules/import) and
+ * [`@use` rules](https://sass-lang.com/documentation/at-rules/use). This can be
+ * passed to {@link LegacySharedOptions.importer} for either {@link render} or
+ * {@link renderSync}.
+ *
+ * See {@link LegacySharedOptions.importer} for more detailed documentation.
+ *
+ * ```js
+ * sass.renderSync({
+ *   file: "style.scss",
+ *   importer: [
+ *     function(url, prev) {
+ *       if (url != "big-headers") return null;
+ *
+ *       return {
+ *         contents: 'h1 { font-size: 40px; }'
+ *       };
+ *     }
+ *   ]
+ * });
+ * ```
+ *
+ * @param url - The `@use` or `@import` rule’s URL as a string, exactly as it
+ * appears in the stylesheet.
+ *
+ * @param prev - A string identifying the stylesheet that contained the `@use`
+ * or `@import`. This string’s format depends on how that stylesheet was loaded:
+ *
+ * * If the stylesheet was loaded from the filesystem, it’s the absolute path of
+ *   its file.
+ * * If the stylesheet was loaded from an importer that returned its contents,
+ *   it’s the URL of the `@use` or `@import` rule that loaded it.
+ * * If the stylesheet came from the data option, it’s the string "stdin".
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Importer} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+type LegacySyncImporter = (
+  this: LegacyImporterThis,
+  url: string,
+  prev: string
+) => LegacyImporterResult;
+
+/**
+ * An asynchronous callback that implements custom Sass loading logic for
+ * [`@import` rules](https://sass-lang.com/documentation/at-rules/import) and
+ * [`@use` rules](https://sass-lang.com/documentation/at-rules/use). This can be
+ * passed to {@link LegacySharedOptions.importer} for either {@link render} or
+ * {@link renderSync}.
+ *
+ * An asynchronous importer must return `undefined`, and then call `done` with
+ * the result of its {@link LegacyImporterResult} once it's done running.
+ *
+ * See {@link LegacySharedOptions.importer} for more detailed documentation.
+ *
+ * ```js
+ * sass.render({
+ *   file: "style.scss",
+ *   importer: [
+ *     function(url, prev, done) {
+ *       if (url != "big-headers") done(null);
+ *
+ *       done({
+ *         contents: 'h1 { font-size: 40px; }'
+ *       });
+ *     }
+ *   ]
+ * });
+ * ```
+ *
+ * @param url - The `@use` or `@import` rule’s URL as a string, exactly as it
+ * appears in the stylesheet.
+ *
+ * @param prev - A string identifying the stylesheet that contained the `@use`
+ * or `@import`. This string’s format depends on how that stylesheet was loaded:
+ *
+ * * If the stylesheet was loaded from the filesystem, it’s the absolute path of
+ *   its file.
+ * * If the stylesheet was loaded from an importer that returned its contents,
+ *   it’s the URL of the `@use` or `@import` rule that loaded it.
+ * * If the stylesheet came from the data option, it’s the string "stdin".
+ *
+ * @param done - The callback to call once the importer has finished running.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Importer} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+type LegacyAsyncImporter = (
+  this: LegacyImporterThis,
+  url: string,
+  prev: string,
+  done: (result: LegacyImporterResult) => void
+) => void;
+
+/**
+ * A callback that implements custom Sass loading logic for [`@import`
+ * rules](https://sass-lang.com/documentation/at-rules/import) and [`@use`
+ * rules](https://sass-lang.com/documentation/at-rules/use). For {@link
+ * renderSync}, this must be a {@link LegacySyncImporter} which returns its
+ * result directly; for {@link render}, it may be either a {@link
+ * LegacySyncImporter} or a {@link LegacyAsyncImporter} which calls a callback
+ * with its result.
+ *
+ * See {@link LegacySharedOptions.importer} for more details.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Importer} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyImporter<sync = 'sync' | 'async'> = sync extends 'async'
+  ? LegacySyncImporter | LegacyAsyncImporter
+  : LegacySyncImporter;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/options.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/options.d.ts
new file mode 100644
index 00000000..788fc90f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/options.d.ts
@@ -0,0 +1,660 @@
+import {Logger} from '../logger';
+import {LegacyImporter} from './importer';
+import {LegacyFunction} from './function';
+import {NodePackageImporter} from '../importer';
+
+/**
+ * Options for {@link render} and {@link renderSync} that are shared between
+ * {@link LegacyFileOptions} and {@link LegacyStringOptions}.
+ *
+ * @typeParam sync - This lets the TypeScript checker verify that {@link
+ * LegacyAsyncImporter}s and {@link LegacyAsyncFunction}s aren't passed to
+ * {@link renderSync}.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Options} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export interface LegacySharedOptions<sync extends 'sync' | 'async'> {
+  /**
+   * This array of strings option provides [load
+   * paths](https://sass-lang.com/documentation/at-rules/import#load-paths) for
+   * Sass to look for stylesheets. Earlier load paths will take precedence over
+   * later ones.
+   *
+   * ```js
+   * sass.renderSync({
+   *   file: "style.scss",
+   *   includePaths: ["node_modules/bootstrap/dist/css"]
+   * });
+   * ```
+   *
+   * Load paths are also loaded from the `SASS_PATH` environment variable, if
+   * it’s set. This variable should be a list of paths separated by `;` (on
+   * Windows) or `:` (on other operating systems). Load paths from the
+   * `includePaths` option take precedence over load paths from `SASS_PATH`.
+   *
+   * ```sh
+   * $ SASS_PATH=node_modules/bootstrap/dist/css sass style.scss style.css
+   * ```
+   *
+   * @category Input
+   * @compatibility feature: "SASS_PATH", dart: "1.15.0", node: "3.9.0"
+   *
+   * Earlier versions of Dart Sass and Node Sass didn’t support the `SASS_PATH`
+   * environment variable.
+   */
+  includePaths?: string[];
+
+  /**
+   * Whether the generated CSS should use spaces or tabs for indentation.
+   *
+   * ```js
+   * const result = sass.renderSync({
+   *   file: "style.scss",
+   *   indentType: "tab",
+   *   indentWidth: 1
+   * });
+   *
+   * result.css.toString();
+   * // "h1 {\n\tfont-size: 40px;\n}\n"
+   * ```
+   *
+   * @defaultValue `'space'`
+   * @category Output
+   * @compatibility dart: true, node: "3.0.0"
+   */
+  indentType?: 'space' | 'tab';
+
+  /**
+   * How many spaces or tabs (depending on {@link indentType}) should be used
+   * per indentation level in the generated CSS. It must be between 0 and 10
+   * (inclusive).
+   *
+   * @defaultValue `2`
+   * @category Output
+   * @compatibility dart: true, node: "3.0.0"
+   */
+  indentWidth?: number;
+
+  /**
+   * Which character sequence to use at the end of each line in the generated
+   * CSS. It can have the following values:
+   *
+   * * `'lf'` uses U+000A LINE FEED.
+   * * `'lfcr'` uses U+000A LINE FEED followed by U+000D CARRIAGE RETURN.
+   * * `'cr'` uses U+000D CARRIAGE RETURN.
+   * * `'crlf'` uses U+000D CARRIAGE RETURN followed by U+000A LINE FEED.
+   *
+   * @defaultValue `'lf'`
+   * @category Output
+   * @compatibility dart: true, node: "3.0.0"
+   */
+  linefeed?: 'cr' | 'crlf' | 'lf' | 'lfcr';
+
+  /**
+   * If `true`, Sass won't add a link from the generated CSS to the source map.
+   *
+   * ```js
+   * const result = sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: "out.map",
+   *   omitSourceMapUrl: true
+   * })
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px;
+   * // }
+   * ```
+   *
+   * @defaultValue `false`
+   * @category Source Maps
+   */
+  omitSourceMapUrl?: boolean;
+
+  /**
+   * The location that Sass expects the generated CSS to be saved to. It’s used
+   * to determine the URL used to link from the generated CSS to the source map,
+   * and from the source map to the Sass source files.
+   *
+   * **Heads up!** Despite the name, Sass does *not* write the CSS output to
+   * this file. The caller must do that themselves.
+   *
+   * ```js
+   * result = sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: true,
+   *   outFile: "out.css"
+   * })
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px;
+   * // }
+   * // /*# sourceMappingURL=out.css.map * /
+   * ```
+   *
+   * @category Source Maps
+   */
+  outFile?: string;
+
+  /**
+   * The output style of the compiled CSS. There are four possible output styles:
+   *
+   * * `"expanded"` (the default for Dart Sass) writes each selector and
+   *   declaration on its own line.
+   *
+   * * `"compressed"` removes as many extra characters as possible, and writes
+   *   the entire stylesheet on a single line.
+   *
+   * * `"nested"` (the default for Node Sass, not supported by Dart Sass)
+   *   indents CSS rules to match the nesting of the Sass source.
+   *
+   * * `"compact"` (not supported by Dart Sass) puts each CSS rule on its own single line.
+   *
+   * @example
+   *
+   * ```js
+   * const source = `
+   * h1 {
+   *   font-size: 40px;
+   *   code {
+   *     font-face: Roboto Mono;
+   *   }
+   * }`;
+   *
+   * let result = sass.renderSync({
+   *   data: source,
+   *   outputStyle: "expanded"
+   * });
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px;
+   * // }
+   * // h1 code {
+   * //   font-face: Roboto Mono;
+   * // }
+   *
+   * result = sass.renderSync({
+   *   data: source,
+   *   outputStyle: "compressed"
+   * });
+   * console.log(result.css.toString());
+   * // h1{font-size:40px}h1 code{font-face:Roboto Mono}
+   *
+   * result = sass.renderSync({
+   *   data: source,
+   *   outputStyle: "nested"
+   * });
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px; }
+   * //   h1 code {
+   * //     font-face: Roboto Mono; }
+   *
+   * result = sass.renderSync({
+   *   data: source,
+   *   outputStyle: "compact"
+   * });
+   * console.log(result.css.toString());
+   * // h1 { font-size: 40px; }
+   * // h1 code { font-face: Roboto Mono; }
+   * ```
+   *
+   * @category Output
+   */
+  outputStyle?: 'compressed' | 'expanded' | 'nested' | 'compact';
+
+  /**
+   * Whether or not Sass should generate a source map. If it does, the source
+   * map will be available as {@link LegacyResult.map} (unless {@link
+   * sourceMapEmbed} is `true`).
+   *
+   * If this option is a string, it’s the path that the source map is expected
+   * to be written to, which is used to link to the source map from the
+   * generated CSS and to link *from* the source map to the Sass source files.
+   * Note that if `sourceMap` is a string and {@link outFile} isn’t passed, Sass
+   * assumes that the CSS will be written to the same directory as the file
+   * option if it’s passed.
+   *
+   * If this option is `true`, the path is assumed to be {@link outFile} with
+   * `.map` added to the end. If it’s `true` and {@link outFile} isn’t passed,
+   * it has no effect.
+   *
+   * @example
+   *
+   * ```js
+   * let result = sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: "out.map"
+   * })
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px;
+   * // }
+   * // /*# sourceMappingURL=out.map * /
+   *
+   * result = sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: true,
+   *   outFile: "out.css"
+   * })
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px;
+   * // }
+   * // /*# sourceMappingURL=out.css.map * /
+   * ```
+   *
+   * @defaultValue `false`
+   * @category Source Maps
+   */
+  sourceMap?: boolean | string;
+
+  /**
+   * Whether to embed the entire contents of the Sass files that contributed to
+   * the generated CSS in the source map. This may produce very large source
+   * maps, but it guarantees that the source will be available on any computer
+   * no matter how the CSS is served.
+   *
+   * @example
+   *
+   * ```js
+   * sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: "out.map",
+   *   sourceMapContents: true
+   * })
+   * ```
+   *
+   * @defaultValue `false`
+   * @category Source Maps
+   */
+  sourceMapContents?: boolean;
+
+  /**
+   * Whether to embed the contents of the source map file in the generated CSS,
+   * rather than creating a separate file and linking to it from the CSS.
+   *
+   * @example
+   *
+   * ```js
+   * sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: "out.map",
+   *   sourceMapEmbed: true
+   * });
+   * ```
+   *
+   * @defaultValue `false`
+   * @category Source Maps
+   */
+  sourceMapEmbed?: boolean;
+
+  /**
+   * If this is passed, it's prepended to all the links from the source map to
+   * the Sass source files.
+   *
+   * @category Source Maps
+   */
+  sourceMapRoot?: string;
+
+  /**
+   * Additional handler(s) for loading files when a [`@use`
+   * rule](https://sass-lang.com/documentation/at-rules/use) or an [`@import`
+   * rule](https://sass-lang.com/documentation/at-rules/import) is encountered.
+   * It can either be a single {@link LegacyImporter} function, or an array of
+   * {@link LegacyImporter}s.
+   *
+   * Importers take the URL of the `@import` or `@use` rule and return a {@link
+   * LegacyImporterResult} indicating how to handle that rule. For more details,
+   * see {@link LegacySyncImporter} and {@link LegacyAsyncImporter}.
+   *
+   * Loads are resolved by trying, in order:
+   *
+   * * Loading a file from disk relative to the file in which the `@use` or
+   *   `@import` appeared.
+   *
+   * * Each custom importer.
+   *
+   * * Loading a file relative to the current working directory.
+   *
+   * * Each load path in {@link includePaths}.
+   *
+   * * Each load path specified in the `SASS_PATH` environment variable, which
+   *   should be semicolon-separated on Windows and colon-separated elsewhere.
+   *
+   * @example
+   *
+   * ```js
+   * sass.render({
+   *   file: "style.scss",
+   *   importer: [
+   *     // This importer uses the synchronous API, and can be passed to either
+   *     // renderSync() or render().
+   *     function(url, prev) {
+   *       // This generates a stylesheet from scratch for `@use "big-headers"`.
+   *       if (url != "big-headers") return null;
+   *
+   *       return {
+   *         contents: `
+   * h1 {
+   *   font-size: 40px;
+   * }`
+   *       };
+   *     },
+   *
+   *     // This importer uses the asynchronous API, and can only be passed to
+   *     // render().
+   *     function(url, prev, done) {
+   *       // Convert `@use "foo/bar"` to "node_modules/foo/sass/bar".
+   *       const components = url.split('/');
+   *       const innerPath = components.slice(1).join('/');
+   *       done({
+   *         file: `node_modules/${components.first}/sass/${innerPath}`
+   *       });
+   *     }
+   *   ]
+   * }, function(err, result) {
+   *   // ...
+   * });
+   * ```
+   *
+   * @category Plugins
+   * @compatibility dart: true, node: "3.0.0"
+   *
+   * Versions of Node Sass before 3.0.0 don’t support arrays of importers, nor
+   * do they support importers that return `Error` objects.
+   *
+   * Versions of Node Sass before 2.0.0 don’t support the `importer` option at
+   * all.
+   *
+   * @compatibility feature: "Import order", dart: "1.20.2", node: false
+   *
+   * Versions of Dart Sass before 1.20.2 preferred resolving imports using
+   * {@link includePaths} before resolving them using custom importers.
+   *
+   * All versions of Node Sass currently pass imports to importers before
+   * loading them relative to the file in which the `@import` appears. This
+   * behavior is considered incorrect and should not be relied on because it
+   * violates the principle of *locality*, which says that it should be possible
+   * to reason about a stylesheet without knowing everything about how the
+   * entire system is set up. If a user tries to import a stylesheet relative to
+   * another stylesheet, that import should *always* work. It shouldn’t be
+   * possible for some configuration somewhere else to break it.
+   */
+  importer?: LegacyImporter<sync> | LegacyImporter<sync>[];
+
+  /**
+   * Additional built-in Sass functions that are available in all stylesheets.
+   * This option takes an object whose keys are Sass function signatures and
+   * whose values are {@link LegacyFunction}s. Each function should take the
+   * same arguments as its signature.
+   *
+   * Functions are passed subclasses of {@link LegacyValue}, and must return the
+   * same.
+   *
+   * **Heads up!** When writing custom functions, it’s important to ensure that
+   * all the arguments are the types you expect. Otherwise, users’ stylesheets
+   * could crash in hard-to-debug ways or, worse, compile to meaningless CSS.
+   *
+   * @example
+   *
+   * ```js
+   * sass.render({
+   *   data: `
+   * h1 {
+   *   font-size: pow(2, 5) * 1px;
+   * }`,
+   *   functions: {
+   *     // This function uses the synchronous API, and can be passed to either
+   *     // renderSync() or render().
+   *     'pow($base, $exponent)': function(base, exponent) {
+   *       if (!(base instanceof sass.types.Number)) {
+   *         throw "$base: Expected a number.";
+   *       } else if (base.getUnit()) {
+   *         throw "$base: Expected a unitless number.";
+   *       }
+   *
+   *       if (!(exponent instanceof sass.types.Number)) {
+   *         throw "$exponent: Expected a number.";
+   *       } else if (exponent.getUnit()) {
+   *         throw "$exponent: Expected a unitless number.";
+   *       }
+   *
+   *       return new sass.types.Number(
+   *           Math.pow(base.getValue(), exponent.getValue()));
+   *     },
+   *
+   *     // This function uses the asynchronous API, and can only be passed to
+   *     // render().
+   *     'sqrt($number)': function(number, done) {
+   *       if (!(number instanceof sass.types.Number)) {
+   *         throw "$number: Expected a number.";
+   *       } else if (number.getUnit()) {
+   *         throw "$number: Expected a unitless number.";
+   *       }
+   *
+   *       done(new sass.types.Number(Math.sqrt(number.getValue())));
+   *     }
+   *   }
+   * }, function(err, result) {
+   *   console.log(result.css.toString());
+   *   // h1 {
+   *   //   font-size: 32px;
+   *   // }
+   * });
+   * ```
+   *
+   * @category Plugins
+   */
+  functions?: {[key: string]: LegacyFunction<sync>};
+
+  /**
+   * By default, if the CSS document contains non-ASCII characters, Sass adds a
+   * `@charset` declaration (in expanded output mode) or a byte-order mark (in
+   * compressed mode) to indicate its encoding to browsers or other consumers.
+   * If `charset` is `false`, these annotations are omitted.
+   *
+   * @category Output
+   * @compatibility dart: "1.39.0", node: false
+   */
+  charset?: boolean;
+
+  /**
+   * If this option is set to `true`, Sass won’t print warnings that are caused
+   * by dependencies. A “dependency” is defined as any file that’s loaded
+   * through {@link includePaths} or {@link importer}. Stylesheets that are
+   * imported relative to the entrypoint are not considered dependencies.
+   *
+   * This is useful for silencing deprecation warnings that you can’t fix on
+   * your own. However, please <em>also</em> notify your dependencies of the deprecations
+   * so that they can get fixed as soon as possible!
+   *
+   * **Heads up!** If {@link render} or {@link renderSync} is called without
+   * {@link LegacyFileOptions.file} or {@link LegacyStringOptions.file},
+   * <em>all</em> stylesheets it loads will be considered dependencies. Since it
+   * doesn’t have a path of its own, everything it loads is coming from a load
+   * path rather than a relative import.
+   *
+   * @defaultValue `false`
+   * @category Messages
+   * @compatibility dart: "1.35.0", node: false
+   */
+  quietDeps?: boolean;
+
+  /**
+   * By default, Dart Sass will print only five instances of the same
+   * deprecation warning per compilation to avoid deluging users in console
+   * noise. If you set `verbose` to `true`, it will instead print every
+   * deprecation warning it encounters.
+   *
+   * @defaultValue `false`
+   * @category Messages
+   * @compatibility dart: "1.35.0", node: false
+   */
+  verbose?: boolean;
+
+  /**
+   * An object to use to handle warnings and/or debug messages from Sass.
+   *
+   * By default, Sass emits warnings and debug messages to standard error, but
+   * if {@link Logger.warn} or {@link Logger.debug} is set, this will invoke
+   * them instead.
+   *
+   * The special value {@link Logger.silent} can be used to easily silence all
+   * messages.
+   *
+   * @category Messages
+   * @compatibility dart: "1.43.0", node: false
+   */
+  logger?: Logger;
+
+  /**
+   * If this option is set to an instance of `NodePackageImporter`, Sass will
+   * use the built-in Node.js package importer to resolve Sass files with a
+   * `pkg:` URL scheme. Details for library authors and users can be found in
+   * the {@link NodePackageImporter} documentation.
+   *
+   * @example
+   * ```js
+   * sass.renderSync({
+   *   data: '@use "pkg:vuetify";',
+   *   pkgImporter: new sass.NodePackageImporter()
+   * });
+   * ```
+   * @category Plugins
+   * @compatibility dart: "2.0", node: false
+   */
+  pkgImporter?: NodePackageImporter;
+}
+
+/**
+ * If {@link file} is passed without {@link data}, Sass will load the stylesheet
+ * at {@link file} and compile it to CSS.
+ *
+ * @typeParam sync - This lets the TypeScript checker verify that {@link
+ * LegacyAsyncImporter}s and {@link LegacyAsyncFunction}s aren't passed to
+ * {@link renderSync}.
+ */
+export interface LegacyFileOptions<sync extends 'sync' | 'async'>
+  extends LegacySharedOptions<sync> {
+  /**
+   * The path to the file for Sass to load and compile. If the file’s extension
+   * is `.scss`, it will be parsed as SCSS; if it’s `.sass`, it will be parsed
+   * as the indented syntax; and if it’s `.css`, it will be parsed as plain CSS.
+   * If it has no extension, it will be parsed as SCSS.
+   *
+   * @example
+   *
+   * ```js
+   * sass.renderSync({file: "style.scss"});
+   * ```
+   *
+   * @category Input
+   * @compatibility feature: "Plain CSS files", dart: "1.11.0", node: "partial"
+   *
+   * Node Sass and older versions of Dart Sass support loading files with the
+   * extension `.css`, but contrary to the specification they’re treated as SCSS
+   * files rather than being parsed as CSS. This behavior has been deprecated
+   * and should not be relied on. Any files that use Sass features should use
+   * the `.scss` extension.
+   *
+   * All versions of Node Sass and Dart Sass otherwise support the file option
+   * as described below.
+   */
+  file: string;
+
+  /**
+   * See {@link LegacyStringOptions.file} for documentation of passing {@link
+   * file} along with {@link data}.
+   *
+   * @category Input
+   */
+  data?: never;
+}
+
+/**
+ * If {@link data} is passed, Sass will use it as the contents of the stylesheet
+ * to compile.
+ *
+ * @typeParam sync - This lets the TypeScript checker verify that {@link
+ * LegacyAsyncImporter}s and {@link LegacyAsyncFunction}s aren't passed to
+ * {@link renderSync}.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link StringOptions} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export interface LegacyStringOptions<sync extends 'sync' | 'async'>
+  extends LegacySharedOptions<sync> {
+  /**
+   * The contents of the stylesheet to compile. Unless {@link file} is passed as
+   * well, the stylesheet’s URL is set to `"stdin"`.
+   *
+   * By default, this stylesheet is parsed as SCSS. This can be controlled using
+   * {@link indentedSyntax}.
+   *
+   * @example
+   *
+   * ```js
+   * sass.renderSync({
+   *   data: `
+   * h1 {
+   *   font-size: 40px;
+   * }`
+   * });
+   * ```
+   *
+   * @category Input
+   */
+  data: string;
+
+  /**
+   * If `file` and {@link data} are both passed, `file` is used as the path of
+   * the stylesheet for error reporting, but {@link data} is used as the
+   * contents of the stylesheet. In this case, `file`’s extension is not used to
+   * determine the syntax of the stylesheet.
+   *
+   * @category Input
+   */
+  file?: string;
+
+  /**
+   * This flag controls whether {@link data} is parsed as the indented syntax or
+   * not.
+   *
+   * @example
+   *
+   * ```js
+   * sass.renderSync({
+   *   data: `
+   * h1
+   *   font-size: 40px`,
+   *   indentedSyntax: true
+   * });
+   * ```
+   *
+   * @defaultValue `false`
+   * @category Input
+   */
+  indentedSyntax?: boolean;
+}
+
+/**
+ * Options for {@link render} and {@link renderSync}. This can either be {@link
+ * LegacyFileOptions} to load a file from disk, or {@link LegacyStringOptions}
+ * to compile a string of Sass code.
+ *
+ * See {@link LegacySharedOptions} for options that are shared across both file
+ * and string inputs.
+ *
+ * @category Legacy
+ * @deprecated This only works with the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link Options} with {@link compile}, {@link
+ * compileString}, {@link compileAsync}, and {@link compileStringAsync} instead.
+ */
+export type LegacyOptions<sync extends 'sync' | 'async'> =
+  | LegacyFileOptions<sync>
+  | LegacyStringOptions<sync>;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/plugin_this.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/plugin_this.d.ts
new file mode 100644
index 00000000..8ccffa76
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/plugin_this.d.ts
@@ -0,0 +1,74 @@
+/**
+ * The value of `this` in the context of a {@link LegacyImporter} or {@link
+ * LegacyFunction} callback.
+ *
+ * @category Legacy
+ * @deprecated This is only used by the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link compile}, {@link compileString}, {@link
+ * compileAsync}, and {@link compileStringAsync} instead.
+ */
+export interface LegacyPluginThis {
+  /**
+   * A partial representation of the options passed to {@link render} or {@link
+   * renderSync}.
+   */
+  options: {
+    /** The same {@link LegacyPluginThis} instance that contains this object. */
+    context: LegacyPluginThis;
+
+    /**
+     * The value passed to {@link LegacyFileOptions.file} or {@link
+     * LegacyStringOptions.file}.
+     */
+    file?: string;
+
+    /** The value passed to {@link LegacyStringOptions.data}. */
+    data?: string;
+
+    /**
+     * The value passed to {@link LegacySharedOptions.includePaths} separated by
+     * `";"` on Windows or `":"` on other operating systems. This always
+     * includes the current working directory as the first entry.
+     */
+    includePaths: string;
+
+    /** Always the number 10. */
+    precision: 10;
+
+    /** Always the number 1. */
+    style: 1;
+
+    /** 1 if {@link LegacySharedOptions.indentType} was `"tab"`, 0 otherwise. */
+    indentType: 1 | 0;
+
+    /**
+     * The value passed to {@link LegacySharedOptions.indentWidth}, or `2`
+     * otherwise.
+     */
+    indentWidth: number;
+
+    /**
+     * The value passed to {@link LegacySharedOptions.linefeed}, or `"\n"`
+     * otherwise.
+     */
+    linefeed: '\r' | '\r\n' | '\n' | '\n\r';
+
+    /** A partially-constructed {@link LegacyResult} object. */
+    result: {
+      /** Partial information about the compilation in progress. */
+      stats: {
+        /**
+         * The number of milliseconds between 1 January 1970 at 00:00:00 UTC and
+         * the time at which Sass compilation began.
+         */
+        start: number;
+
+        /**
+         * {@link LegacyFileOptions.file} if it was passed, otherwise the string
+         * `"data"`.
+         */
+        entry: string;
+      };
+    };
+  };
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/render.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/render.d.ts
new file mode 100644
index 00000000..9f78816f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/legacy/render.d.ts
@@ -0,0 +1,144 @@
+import {LegacyException} from './exception';
+import {LegacyOptions} from './options';
+
+/**
+ * The object returned by {@link render} and {@link renderSync} after a
+ * successful compilation.
+ *
+ * @category Legacy
+ * @deprecated This is only used by the legacy {@link render} and {@link
+ * renderSync} APIs. Use {@link compile}, {@link compileString}, {@link
+ * compileAsync}, and {@link compileStringAsync} instead.
+ */
+export interface LegacyResult {
+  /**
+   * The compiled CSS. This can be converted to a string by calling
+   * [Buffer.toString](https://nodejs.org/api/buffer.html#buffer_buf_tostring_encoding_start_end).
+   *
+   * @example
+   *
+   * ```js
+   * const result = sass.renderSync({file: "style.scss"});
+   *
+   * console.log(result.css.toString());
+   * ```
+   */
+  css: Buffer;
+
+  /**
+   * The source map that maps the compiled CSS to the source files from which it
+   * was generated. This can be converted to a string by calling
+   * [Buffer.toString](https://nodejs.org/api/buffer.html#buffer_buf_tostring_encoding_start_end).
+   *
+   * This is `undefined` unless either
+   *
+   * * {@link LegacySharedOptions.sourceMap} is a string; or
+   * * {@link LegacySharedOptions.sourceMap} is `true` and
+   *   {@link LegacySharedOptions.outFile} is set.
+   *
+   * The source map uses absolute [`file:`
+   * URLs](https://en.wikipedia.org/wiki/File_URI_scheme) to link to the Sass
+   * source files, except if the source file comes from {@link
+   * LegacyStringOptions.data} in which case it lists its URL as `"stdin"`.
+   *
+   * @example
+   *
+   * ```js
+   * const result = sass.renderSync({
+   *   file: "style.scss",
+   *   sourceMap: true,
+   *   outFile: "style.css"
+   * })
+   *
+   * console.log(result.map.toString());
+   * ```
+   */
+  map?: Buffer;
+
+  /** Additional information about the compilation. */
+  stats: {
+    /**
+     * The absolute path of {@link LegacyFileOptions.file} or {@link
+     * LegacyStringOptions.file}, or `"data"` if {@link
+     * LegacyStringOptions.file} wasn't set.
+     */
+    entry: string;
+
+    /**
+     * The number of milliseconds between 1 January 1970 at 00:00:00 UTC and the
+     * time at which Sass compilation began.
+     */
+    start: number;
+
+    /**
+     * The number of milliseconds between 1 January 1970 at 00:00:00 UTC and the
+     * time at which Sass compilation ended.
+     */
+    end: number;
+
+    /**
+     * The number of milliseconds it took to compile the Sass file. This is
+     * always equal to `start` minus `end`.
+     */
+    duration: number;
+
+    /**
+     * An array of the absolute paths of all Sass files loaded during
+     * compilation. If a stylesheet was loaded from a {@link LegacyImporter}
+     * that returned the stylesheet’s contents, the raw string of the `@use` or
+     * `@import` that loaded that stylesheet included in this array.
+     */
+    includedFiles: string[];
+  };
+}
+
+/**
+ * This function synchronously compiles a Sass file to CSS. If it succeeds, it
+ * returns the result, and if it fails it throws an error.
+ *
+ * **Heads up!** When using the `sass-embedded` npm package, **{@link render}
+ * is almost always faster than {@link renderSync}**, due to the overhead of
+ * emulating synchronous messaging with worker threads and concurrent
+ * compilations being blocked on main thread.
+ *
+ * @example
+ *
+ * ```js
+ * const sass = require('sass'); // or require('node-sass');
+ *
+ * const result = sass.renderSync({file: "style.scss"});
+ * // ...
+ * ```
+ *
+ * @category Legacy
+ * @deprecated Use {@link compile} or {@link compileString} instead.
+ */
+export function renderSync(options: LegacyOptions<'sync'>): LegacyResult;
+
+/**
+
+ * This function asynchronously compiles a Sass file to CSS, and calls
+ * `callback` with a {@link LegacyResult} if compilation succeeds or {@link
+ * LegacyException} if it fails.
+ *
+ * **Heads up!** When using the `sass` npm package, **{@link renderSync} is
+ * almost twice as fast as {@link render}** by default, due to the overhead of
+ * making the entire evaluation process asynchronous.
+ *
+ * ```js
+ * const sass = require('sass'); // or require('node-sass');
+ *
+ * sass.render({
+ *   file: "style.scss"
+ * }, function(err, result) {
+ *   // ...
+ * });
+ * ```
+ *
+ * @category Legacy
+ * @deprecated Use {@link compileAsync} or {@link compileStringAsync} instead.
+ */
+export function render(
+  options: LegacyOptions<'async'>,
+  callback: (exception?: LegacyException, result?: LegacyResult) => void
+): void;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/logger/index.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/logger/index.d.ts
new file mode 100644
index 00000000..937051e7
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/logger/index.d.ts
@@ -0,0 +1,99 @@
+import {Deprecation} from '../deprecations';
+import {SourceSpan} from './source_span';
+
+export {SourceLocation} from './source_location';
+export {SourceSpan} from './source_span';
+
+/**
+ * An object that can be passed to {@link LegacySharedOptions.logger} to control
+ * how Sass emits warnings and debug messages.
+ *
+ * @example
+ *
+ * ```js
+ * const fs = require('fs');
+ * const sass = require('sass');
+ *
+ * let log = "";
+ * sass.renderSync({
+ *   file: 'input.scss',
+ *   logger: {
+ *     warn(message, options) {
+ *       if (options.span) {
+ *         log += `${span.url}:${span.start.line}:${span.start.column}: ` +
+ *             `${message}\n`;
+ *       } else {
+ *         log += `::: ${message}\n`;
+ *       }
+ *     }
+ *   }
+ * });
+ *
+ * fs.writeFileSync('log.txt', log);
+ * ```
+ *
+ * @category Logger
+ */
+export interface Logger {
+  /**
+   * This method is called when Sass emits a warning, whether due to a [`@warn`
+   * rule](https://sass-lang.com/documentation/at-rules/warn) or a warning
+   * generated by the Sass compiler.
+   *
+   * If this is `undefined`, Sass will print warnings to standard error.
+   *
+   * @param message - The warning message.
+   * @param options.deprecation - Whether this is a deprecation warning.
+   * @param options.deprecationType - The type of deprecation this warning is
+   * for, if any.
+   * @param options.span - The location in the Sass source code that generated this
+   * warning.
+   * @param options.stack - The Sass stack trace at the point the warning was issued.
+   */
+  warn?(
+    message: string,
+    options: (
+      | {
+          deprecation: true;
+          deprecationType: Deprecation;
+        }
+      | {deprecation: false}
+    ) & {span?: SourceSpan; stack?: string}
+  ): void;
+
+  /**
+   * This method is called when Sass emits a debug message due to a [`@debug`
+   * rule](https://sass-lang.com/documentation/at-rules/debug).
+   *
+   * If this is `undefined`, Sass will print debug messages to standard error.
+   *
+   * @param message - The debug message.
+   * @param options.span - The location in the Sass source code that generated this
+   * debug message.
+   */
+  debug?(message: string, options: {span: SourceSpan}): void;
+}
+
+/**
+ * A namespace for built-in {@link Logger}s.
+ *
+ * @category Logger
+ * @compatibility dart: "1.43.0", node: false
+ */
+export namespace Logger {
+  /**
+   * A {@link Logger} that silently ignores all warnings and debug messages.
+   *
+   * @example
+   *
+   * ```js
+   * const sass = require('sass');
+   *
+   * const result = sass.renderSync({
+   *   file: 'input.scss',
+   *   logger: sass.Logger.silent,
+   * });
+   * ```
+   */
+  export const silent: Logger;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/logger/source_location.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/logger/source_location.d.ts
new file mode 100644
index 00000000..71927148
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/logger/source_location.d.ts
@@ -0,0 +1,21 @@
+/**
+ * A specific location within a source file.
+ *
+ * This is always associated with a {@link SourceSpan} which indicates *which*
+ * file it refers to.
+ *
+ * @category Logger
+ */
+export interface SourceLocation {
+  /**
+   * The 0-based index of this location within its source file, in terms of
+   * UTF-16 code units.
+   */
+  offset: number;
+
+  /** The 0-based line number of this location. */
+  line: number;
+
+  /** The 0-based column number of this location. */
+  column: number;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/logger/source_span.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/logger/source_span.d.ts
new file mode 100644
index 00000000..88eb47f3
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/logger/source_span.d.ts
@@ -0,0 +1,34 @@
+import {SourceLocation} from './source_location';
+
+/**
+ * A span of text within a source file.
+ *
+ * @category Logger
+ */
+export interface SourceSpan {
+  /** The beginning of this span, inclusive. */
+  start: SourceLocation;
+
+  /**
+   * The end of this span, exclusive.
+   *
+   * If {@link start} and {@link end} refer to the same location, the span has
+   * zero length and refers to the point immediately after {@link start} and
+   * before the next character.
+   */
+  end: SourceLocation;
+
+  /** The canonical URL of the file this span refers to. */
+  url?: URL;
+
+  /** The text covered by the span. */
+  text: string;
+
+  /**
+   * Text surrounding the span.
+   *
+   * If this is set, it must include only whole lines, and it must include at
+   * least all line(s) which are partially covered by this span.
+   */
+  context?: string;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/options.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/options.d.ts
new file mode 100644
index 00000000..124bdb9a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/options.d.ts
@@ -0,0 +1,455 @@
+import {DeprecationOrId, Version} from './deprecations';
+import {FileImporter, Importer, NodePackageImporter} from './importer';
+import {Logger} from './logger';
+import {Value} from './value';
+import {PromiseOr} from './util/promise_or';
+
+/**
+ * Syntaxes supported by Sass:
+ *
+ * - `'scss'` is the [SCSS
+ *   syntax](https://sass-lang.com/documentation/syntax#scss).
+ * - `'indented'` is the [indented
+ *   syntax](https://sass-lang.com/documentation/syntax#the-indented-syntax)
+ * - `'css'` is plain CSS, which is parsed like SCSS but forbids the use of any
+ *   special Sass features.
+ *
+ * @category Options
+ */
+export type Syntax = 'scss' | 'indented' | 'css';
+
+/**
+ * Possible output styles for the compiled CSS:
+ *
+ * - `"expanded"` (the default for Dart Sass) writes each selector and
+ *   declaration on its own line.
+ *
+ * - `"compressed"` removes as many extra characters as possible, and writes
+ *   the entire stylesheet on a single line.
+ *
+ * @category Options
+ */
+export type OutputStyle = 'expanded' | 'compressed';
+
+/**
+ * A callback that implements a custom Sass function. This can be passed to
+ * {@link Options.functions}.
+ *
+ * ```js
+ * const result = sass.compile('style.scss', {
+ *   functions: {
+ *     "sum($arg1, $arg2)": (args) => {
+ *       const arg1 = args[0].assertNumber('arg1');
+ *       const value1 = arg1.value;
+ *       const value2 = args[1].assertNumber('arg2')
+ *           .convertValueToMatch(arg1, 'arg2', 'arg1');
+ *       return new sass.SassNumber(value1 + value2).coerceToMatch(arg1);
+ *     }
+ *   }
+ * });
+ * ```
+ *
+ * @typeParam sync - A `CustomFunction<'sync'>` must return synchronously, but
+ * in return it can be passed to {@link compile} and {@link compileString} in
+ * addition to {@link compileAsync} and {@link compileStringAsync}.
+ *
+ * A `CustomFunction<'async'>` may either return synchronously or
+ * asynchronously, but it can only be used with {@link compileAsync} and {@link
+ * compileStringAsync}.
+ *
+ * @param args - An array of arguments passed by the function's caller. If the
+ * function takes [arbitrary
+ * arguments](https://sass-lang.com/documentation/at-rules/function#taking-arbitrary-arguments),
+ * the last element will be a {@link SassArgumentList}.
+ *
+ * @returns The function's result. This may be in the form of a `Promise`, but
+ * if it is the function may only be passed to {@link compileAsync} and {@link
+ * compileStringAsync}, not {@link compile} or {@link compileString}.
+ *
+ * @throws any - This function may throw an error, which the Sass compiler will
+ * treat as the function call failing. If the exception object has a `message`
+ * property, it will be used as the wrapped exception's message; otherwise, the
+ * exception object's `toString()` will be used. This means it's safe for custom
+ * functions to throw plain strings.
+ *
+ * @category Custom Function
+ */
+export type CustomFunction<sync extends 'sync' | 'async'> = (
+  args: Value[]
+) => PromiseOr<Value, sync>;
+
+/**
+ * Options that can be passed to {@link compile}, {@link compileAsync}, {@link
+ * compileString}, or {@link compileStringAsync}.
+ *
+ * @typeParam sync - This lets the TypeScript checker verify that asynchronous
+ * {@link Importer}s, {@link FileImporter}s, and {@link CustomFunction}s aren't
+ * passed to {@link compile} or {@link compileString}.
+ *
+ * @category Options
+ */
+export interface Options<sync extends 'sync' | 'async'> {
+  /**
+   * If this is `true`, the compiler will exclusively use ASCII characters in
+   * its error and warning messages. Otherwise, it may use non-ASCII Unicode
+   * characters as well.
+   *
+   * @defaultValue `false`
+   * @category Messages
+   */
+  alertAscii?: boolean;
+
+  /**
+   * If this is `true`, the compiler will use ANSI color escape codes in its
+   * error and warning messages. If it's `false`, it won't use these. If it's
+   * undefined, the compiler will determine whether or not to use colors
+   * depending on whether the user is using an interactive terminal.
+   *
+   * @category Messages
+   */
+  alertColor?: boolean;
+
+  /**
+   * If `true`, the compiler may prepend `@charset "UTF-8";` or U+FEFF
+   * (byte-order marker) if it outputs non-ASCII CSS.
+   *
+   * If `false`, the compiler never emits these byte sequences. This is ideal
+   * when concatenating or embedding in HTML `<style>` tags. (The output will
+   * still be UTF-8.)
+   *
+   * @defaultValue `true`
+   * @category Output
+   * @compatibility dart: "1.54.0", node: false
+   */
+  charset?: boolean;
+
+  /**
+   * A set of deprecations to treat as fatal.
+   *
+   * If a deprecation warning of any provided type is encountered during
+   * compilation, the compiler will error instead.
+   *
+   * If a `Version` is provided, then all deprecations that were active in that
+   * compiler version will be treated as fatal.
+   *
+   * @category Messages
+   * @compatiblity dart: "1.74.0", node: false
+   */
+  fatalDeprecations?: (DeprecationOrId | Version)[];
+
+  /**
+   * Additional built-in Sass functions that are available in all stylesheets.
+   * This option takes an object whose keys are Sass function signatures like
+   * you'd write for the [`@function
+   * rule`](https://sass-lang.com/documentation/at-rules/function) and whose
+   * values are {@link CustomFunction}s.
+   *
+   * Functions are passed subclasses of {@link Value}, and must return the same.
+   * If the return value includes {@link SassCalculation}s they will be
+   * simplified before being returned.
+   *
+   * When writing custom functions, it's important to make them as user-friendly
+   * and as close to the standards set by Sass's core functions as possible. Some
+   * good guidelines to follow include:
+   *
+   * * Use `Value.assert*` methods, like {@link Value.assertString}, to cast
+   *   untyped `Value` objects to more specific types. For values that were
+   *   passed directly as arguments, pass in the argument name as well. This
+   *   ensures that the user gets good error messages when they pass in the
+   *   wrong type to your function.
+   *
+   * * Individual classes may have more specific `assert*` methods, like {@link
+   *   SassNumber.assertInt}, which should be used when possible.
+   *
+   * * In Sass, every value counts as a list. Rather than trying to detect the
+   *   {@link SassList} type, you should use {@link Value.asList} to treat all
+   *   values as lists.
+   *
+   * * When manipulating values like lists, strings, and numbers that have
+   *   metadata (comma versus space separated, bracketed versus unbracketed,
+   *   quoted versus unquoted, units), the output metadata should match the
+   *   input metadata.
+   *
+   * * When in doubt, lists should default to comma-separated, strings should
+   *   default to quoted, and numbers should default to unitless.
+   *
+   * * In Sass, lists and strings use one-based indexing and use negative
+   *   indices to index from the end of value. Functions should follow these
+   *   conventions. {@link Value.sassIndexToListIndex} and {@link
+   *   SassString.sassIndexToStringIndex} can be used to do this automatically.
+   *
+   * * String indexes in Sass refer to Unicode code points while JavaScript
+   *   string indices refer to UTF-16 code units. For example, the character
+   *   U+1F60A SMILING FACE WITH SMILING EYES is a single Unicode code point but
+   *   is represented in UTF-16 as two code units (`0xD83D` and `0xDE0A`). So in
+   *   JavaScript, `"a😊b".charCodeAt(1)` returns `0xD83D`, whereas in Sass
+   *   `str-slice("a😊b", 1, 1)` returns `"😊"`. Functions should follow Sass's
+   *   convention. {@link SassString.sassIndexToStringIndex} can be used to do
+   *   this automatically, and the {@link SassString.sassLength} getter can be
+   *   used to access a string's length in code points.
+   *
+   * @example
+   *
+   * ```js
+   * sass.compileString(`
+   * h1 {
+   *   font-size: pow(2, 5) * 1px;
+   * }`, {
+   *   functions: {
+   *     // Note: in real code, you should use `math.pow()` from the built-in
+   *     // `sass:math` module.
+   *     'pow($base, $exponent)': function(args) {
+   *       const base = args[0].assertNumber('base').assertNoUnits('base');
+   *       const exponent =
+   *           args[1].assertNumber('exponent').assertNoUnits('exponent');
+   *
+   *       return new sass.SassNumber(Math.pow(base.value, exponent.value));
+   *     }
+   *   }
+   * });
+   * ```
+   *
+   * @category Plugins
+   */
+  functions?: Record<string, CustomFunction<sync>>;
+
+  /**
+   * A set of future deprecations to opt into early.
+   *
+   * Future deprecations passed here will be treated as active by the compiler,
+   * emitting warnings as necessary.
+   *
+   * @category Messages
+   * @compatiblity dart: "1.74.0", node: false
+   */
+  futureDeprecations?: DeprecationOrId[];
+
+  /**
+   * Custom importers that control how Sass resolves loads from rules like
+   * [`@use`](https://sass-lang.com/documentation/at-rules/use) and
+   * [`@import`](https://sass-lang.com/documentation/at-rules/import).
+   *
+   * Loads are resolved by trying, in order:
+   *
+   * - The importer that was used to load the current stylesheet, with the
+   *   loaded URL resolved relative to the current stylesheet's canonical URL.
+   *
+   * - Each {@link Importer}, {@link FileImporter}, or
+   *   {@link NodePackageImporter} in {@link importers}, in order.
+   *
+   * - Each load path in {@link loadPaths}, in order.
+   *
+   * If none of these return a Sass file, the load fails and Sass throws an
+   * error.
+   *
+   * @category Plugins
+   */
+  importers?: (Importer<sync> | FileImporter<sync> | NodePackageImporter)[];
+
+  /**
+   * Paths in which to look for stylesheets loaded by rules like
+   * [`@use`](https://sass-lang.com/documentation/at-rules/use) and
+   * [`@import`](https://sass-lang.com/documentation/at-rules/import).
+   *
+   * A load path `loadPath` is equivalent to the following {@link FileImporter}:
+   *
+   * ```js
+   * {
+   *   findFileUrl(url) {
+   *     // Load paths only support relative URLs.
+   *     if (/^[a-z]+:/i.test(url)) return null;
+   *     return new URL(url, pathToFileURL(loadPath));
+   *   }
+   * }
+   * ```
+   *
+   * @category Input
+   */
+  loadPaths?: string[];
+
+  /**
+   * An object to use to handle warnings and/or debug messages from Sass.
+   *
+   * By default, Sass emits warnings and debug messages to standard error, but
+   * if {@link Logger.warn} or {@link Logger.debug} is set, this will invoke
+   * them instead.
+   *
+   * The special value {@link Logger.silent} can be used to easily silence all
+   * messages.
+   *
+   * @category Messages
+   */
+  logger?: Logger;
+
+  /**
+   * If this option is set to `true`, Sass won’t print warnings that are caused
+   * by dependencies. A “dependency” is defined as any file that’s loaded
+   * through {@link loadPaths} or {@link importers}. Stylesheets that are
+   * imported relative to the entrypoint are not considered dependencies.
+   *
+   * This is useful for silencing deprecation warnings that you can’t fix on
+   * your own. However, please <em>also</em> notify your dependencies of the deprecations
+   * so that they can get fixed as soon as possible!
+   *
+   * **Heads up!** If {@link compileString} or {@link compileStringAsync} is
+   * called without {@link StringOptions.url}, <em>all</em> stylesheets it loads
+   * will be considered dependencies. Since it doesn’t have a path of its own,
+   * everything it loads is coming from a load path rather than a relative
+   * import.
+   *
+   * @defaultValue `false`
+   * @category Messages
+   */
+  quietDeps?: boolean;
+
+  /**
+   * A set of active deprecations to ignore.
+   *
+   * If a deprecation warning of any provided type is encountered during
+   * compilation, the compiler will ignore it instead.
+   *
+   * **Heads up!** The deprecated functionality you're depending on will
+   * eventually break.
+   *
+   * @category Messages
+   * @compatiblity dart: "1.74.0", node: false
+   */
+  silenceDeprecations?: DeprecationOrId[];
+
+  /**
+   * Whether or not Sass should generate a source map. If it does, the source
+   * map will be available as {@link CompileResult.sourceMap}.
+   *
+   * **Heads up!** Sass doesn't automatically add a `sourceMappingURL` comment
+   * to the generated CSS. It's up to callers to do that, since callers have
+   * full knowledge of where the CSS and the source map will exist in relation
+   * to one another and how they'll be served to the browser.
+   *
+   * @defaultValue `false`
+   * @category Output
+   */
+  sourceMap?: boolean;
+
+  /**
+   * Whether Sass should include the sources in the generated source map.
+   *
+   * This option has no effect if {@link sourceMap} is `false`.
+   *
+   * @defaultValue `false`
+   * @category Output
+   */
+  sourceMapIncludeSources?: boolean;
+
+  /**
+   * The {@link OutputStyle} of the compiled CSS.
+   *
+   * @example
+   *
+   * ```js
+   * const source = `
+   * h1 {
+   *   font-size: 40px;
+   *   code {
+   *     font-face: Roboto Mono;
+   *   }
+   * }`;
+   *
+   * let result = sass.compileString(source, {style: "expanded"});
+   * console.log(result.css.toString());
+   * // h1 {
+   * //   font-size: 40px;
+   * // }
+   * // h1 code {
+   * //   font-face: Roboto Mono;
+   * // }
+   *
+   * result = sass.compileString(source, {style: "compressed"})
+   * console.log(result.css.toString());
+   * // h1{font-size:40px}h1 code{font-face:Roboto Mono}
+   * ```
+   *
+   * @category Output
+   */
+  style?: OutputStyle;
+
+  /**
+   * By default, Dart Sass will print only five instances of the same
+   * deprecation warning per compilation to avoid deluging users in console
+   * noise. If you set `verbose` to `true`, it will instead print every
+   * deprecation warning it encounters.
+   *
+   * @defaultValue `false`
+   * @category Messages
+   */
+  verbose?: boolean;
+}
+
+/**
+ * Options that can be passed to {@link compileString} or {@link
+ * compileStringAsync}.
+ *
+ * If the {@link StringOptions.importer} field isn't passed, the entrypoint file
+ * can load files relative to itself if a `file://` URL is passed to the {@link
+ * url} field. If it is passed, the entrypoint file uses it to load files
+ * relative to itself.
+ *
+ * @typeParam sync - This lets the TypeScript checker verify that asynchronous
+ * {@link Importer}s, {@link FileImporter}s, and {@link CustomFunction}s aren't
+ * passed to {@link compile} or {@link compileString}.
+ *
+ * @category Options
+ */
+export interface StringOptions<sync extends 'sync' | 'async'>
+  extends Options<sync> {
+  /**
+   * The {@link Syntax} to use to parse the entrypoint stylesheet.
+   *
+   * @default `'scss'`
+   *
+   * @category Input
+   */
+  syntax?: Syntax;
+
+  /**
+   * The importer to use to handle loads that are relative to the entrypoint
+   * stylesheet.
+   *
+   * A relative load's URL is first resolved relative to {@link url}, then
+   * passed to {@link importer}. (It's passed as-is if {@link url} isn't
+   * passed.) If the importer doesn't recognize it, it's then passed to {@link
+   * importers} and {@link loadPaths}.
+   *
+   * @category Input
+   */
+  importer?: Importer<sync> | FileImporter<sync>;
+
+  /**
+   * The canonical URL of the entrypoint stylesheet.
+   *
+   * A relative load's URL is first resolved relative to {@link url}, then
+   * resolved to a file on disk if it's a `file://` URL. If it can't be resolved
+   * to a file on disk, it's then passed to {@link importers} and {@link
+   * loadPaths}.
+   *
+   * @category Input
+   * @compatibility feature: "Undefined URL with importer", dart: "1.75.0", node: false
+   *
+   * Earlier versions of Dart Sass required {@link url} to be defined when
+   * passing {@link StringOptions.importer}.
+   */
+  url?: URL;
+}
+
+/**
+ * @category Options
+ * @deprecated Use {@link StringOptions} instead.
+ */
+type StringOptionsWithoutImporter<sync extends 'sync' | 'async'> =
+  StringOptions<sync>;
+
+/**
+ * @category Options
+ * @deprecated Use {@link StringOptions} instead.
+ */
+type StringOptionsWithImporter<sync extends 'sync' | 'async'> =
+  StringOptions<sync>;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/util/promise_or.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/util/promise_or.d.ts
new file mode 100644
index 00000000..05d246a0
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/util/promise_or.d.ts
@@ -0,0 +1,17 @@
+/**
+ * A utility type for choosing between synchronous and asynchronous return
+ * values.
+ *
+ * This is used as the return value for plugins like {@link CustomFunction},
+ * {@link Importer}, and {@link FileImporter} so that TypeScript enforces that
+ * asynchronous plugins are only passed to {@link compileAsync} and {@link
+ * compileStringAsync}, not {@link compile} or {@link compileString}.
+ *
+ * @typeParam sync - If this is `'sync'`, this can only be a `T`. If it's
+ * `'async'`, this can be either a `T` or a `Promise<T>`.
+ *
+ * @category Other
+ */
+export type PromiseOr<T, sync extends 'sync' | 'async'> = sync extends 'async'
+  ? T | Promise<T>
+  : T;
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/argument_list.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/argument_list.d.ts
new file mode 100644
index 00000000..ced032a5
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/argument_list.d.ts
@@ -0,0 +1,47 @@
+import {List, OrderedMap} from 'immutable';
+
+import {Value} from './index';
+import {SassList, ListSeparator} from './list';
+
+/**
+ * Sass's [argument list
+ * type](https://sass-lang.com/documentation/values/lists#argument-lists).
+ *
+ * An argument list comes from a rest argument. It's distinct from a normal
+ * {@link SassList} in that it may contain a keyword map as well as the
+ * positional arguments.
+ *
+ * @category Custom Function
+ */
+export class SassArgumentList extends SassList {
+  /**
+   * Creates a new argument list.
+   *
+   * @param contents - The positional arguments that make up the primary
+   * contents of the list. This may be either a plain JavaScript array or an
+   * immutable {@link List} from the [`immutable`
+   * package](https://immutable-js.com/).
+   *
+   * @param keywords - The keyword arguments attached to this argument list,
+   * whose names should exclude `$`. This can be either a plain JavaScript
+   * object with argument names as fields, or an immutable {@link OrderedMap}
+   * from the [`immutable` package](https://immutable-js.com/)
+   *
+   * @param separator - The separator for this list. Defaults to `','`.
+   */
+  constructor(
+    contents: Value[] | List<Value>,
+    keywords: Record<string, Value> | OrderedMap<string, Value>,
+    separator?: ListSeparator
+  );
+
+  /**
+   * The keyword arguments attached to this argument list.
+   *
+   * The argument names don't include `$`.
+   *
+   * @returns An immutable {@link OrderedMap} from the [`immutable`
+   * package](https://immutable-js.com/).
+   */
+  get keywords(): OrderedMap<string, Value>;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/boolean.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/boolean.d.ts
new file mode 100644
index 00000000..b3f3af72
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/boolean.d.ts
@@ -0,0 +1,29 @@
+import {Value} from './index';
+
+/**
+ * Sass's [`true` value](https://sass-lang.com/documentation/values/booleans).
+ *
+ * @category Custom Function
+ */
+export const sassTrue: SassBoolean;
+
+/**
+ * Sass's [`false` value](https://sass-lang.com/documentation/values/booleans).
+ *
+ * @category Custom Function
+ */
+export const sassFalse: SassBoolean;
+
+/**
+ * Sass's [boolean type](https://sass-lang.com/documentation/values/booleans).
+ *
+ * @category Custom Function
+ */
+export class SassBoolean extends Value {
+  private constructor();
+
+  /**
+   * Whether this value is `true` or `false`.
+   */
+  get value(): boolean;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/calculation.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/calculation.d.ts
new file mode 100644
index 00000000..86d06b46
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/calculation.d.ts
@@ -0,0 +1,137 @@
+import {List, ValueObject} from 'immutable';
+import {Value, SassNumber, SassString} from './index';
+
+/**
+ * The type of values that can be arguments to a {@link SassCalculation}.
+ * @category Custom Function
+ * */
+export type CalculationValue =
+  | SassNumber
+  | SassCalculation
+  | SassString
+  | CalculationOperation
+  | CalculationInterpolation;
+
+/**
+ * Sass's [calculation
+ * type](https://sass-lang.com/documentation/values/calculations).
+ *
+ * Note: in the JS API calculations are not simplified eagerly. This also means
+ * that unsimplified calculations are not equal to the numbers they would be
+ * simplified to.
+ *
+ * @category Custom Function
+ */
+export class SassCalculation extends Value {
+  /**
+   * Creates a value that represents `calc(argument)`.
+   *
+   * @throws `Error` if `argument` is a quoted {@link SassString}
+   * @returns A calculation with the name `calc` and `argument` as its single
+   * argument.
+   */
+  static calc(argument: CalculationValue): SassCalculation;
+
+  /**
+   * Creates a value that represents `min(arguments...)`.
+   *
+   * @throws `Error` if `arguments` contains a quoted {@link SassString}
+   * @returns A calculation with the name `min` and `arguments` as its
+   * arguments.
+   */
+  static min(
+    arguments: CalculationValue[] | List<CalculationValue>
+  ): SassCalculation;
+
+  /**
+   * Creates a value that represents `max(arguments...)`.
+   *
+   * @throws `Error` if `arguments` contains a quoted {@link SassString}
+   * @returns A calculation with the name `max` and `arguments` as its
+   * arguments.
+   */
+  static max(
+    arguments: CalculationValue[] | List<CalculationValue>
+  ): SassCalculation;
+
+  /**
+   * Creates a value that represents `clamp(value, min, max)`.
+   *
+   * @throws `Error` if any of `value`, `min`, or `max` are  a quoted
+   * {@link SassString}.
+   * @throws `Error` if `value` is undefined and `max` is not undefined.
+   * @throws `Error` if either `value` or `max` is undefined and neither `min`
+     nor `value` is a {@link SassString} or {@link CalculationInterpolation}.
+     @returns A calculation with the name `clamp` and `min`, `value`, and `max`
+     as it's arguments, excluding any arguments that are undefined.
+   */
+  static clamp(
+    min: CalculationValue,
+    value?: CalculationValue,
+    max?: CalculationValue
+  ): SassCalculation;
+
+  /** Returns the calculation's `name` field. */
+  get name(): string;
+
+  /** Returns a list of the calculation's `arguments` */
+  get arguments(): List<CalculationValue>;
+}
+
+/**
+ * The set of possible operators in a Sass calculation.
+ * @category Custom Function
+ */
+export type CalculationOperator = '+' | '-' | '*' | '/';
+
+/**
+ * A binary operation that can appear in a {@link SassCalculation}.
+ * @category Custom Function
+ */
+export class CalculationOperation implements ValueObject {
+  /**
+   * Creates a Sass CalculationOperation with the given `operator`, `left`, and
+   * `right` values.
+   * @throws `Error` if `left` or `right` are quoted {@link SassString}s.
+   */
+  constructor(
+    operator: CalculationOperator,
+    left: CalculationValue,
+    right: CalculationValue
+  );
+
+  /** Returns the operation's `operator` field. */
+  get operator(): CalculationOperator;
+
+  /** Returns the operation's `left` field. */
+  get left(): CalculationValue;
+
+  /** Returns the operation's `right` field. */
+  get right(): CalculationValue;
+
+  equals(other: unknown): boolean;
+
+  hashCode(): number;
+}
+
+/**
+ * A string injected into a {@link SassCalculation} using interpolation. Unlike
+ * unquoted strings, interpolations are always surrounded in parentheses when
+ * they appear in {@link CalculationOperation}s.
+ * @category Custom Function
+ */
+export class CalculationInterpolation implements ValueObject {
+  /**
+   * Creates a Sass CalculationInterpolation with the given `value`.
+   */
+  constructor(value: string);
+
+  /**
+   * Returns the interpolation's `value` field.
+   */
+  get value(): string;
+
+  equals(other: unknown): boolean;
+
+  hashCode(): number;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/color.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/color.d.ts
new file mode 100644
index 00000000..d016baf0
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/color.d.ts
@@ -0,0 +1,128 @@
+import {Value} from './index';
+
+/**
+ * Sass's [color type](https://sass-lang.com/documentation/values/colors).
+ *
+ * No matter what representation was originally used to create this color, all
+ * of its channels are accessible.
+ *
+ * @category Custom Function
+ */
+export class SassColor extends Value {
+  /**
+   * Creates an RGB color.
+   *
+   * **Only** `undefined` should be passed to indicate a missing `alpha`. If
+   * `null` is passed instead, it will be treated as a [missing component] in
+   * future versions of Dart Sass. See [breaking changes] for details.
+   *
+   * [missing component]: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#missing_color_components
+   * [breaking changes]: /documentation/breaking-changes/null-alpha
+   *
+   * @throws `Error` if `red`, `green`, and `blue` aren't between `0` and
+   * `255`, or if `alpha` isn't between `0` and `1`.
+   */
+  constructor(options: {
+    red: number;
+    green: number;
+    blue: number;
+    alpha?: number;
+  });
+
+  /**
+   * Creates an HSL color.
+   *
+   * **Only** `undefined` should be passed to indicate a missing `alpha`. If
+   * `null` is passed instead, it will be treated as a [missing component] in
+   * future versions of Dart Sass. See [breaking changes] for details.
+   *
+   * [missing component]: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#missing_color_components
+   * [breaking changes]: /documentation/breaking-changes/null-alpha
+   *
+   * @throws `Error` if `saturation` or `lightness` aren't between `0` and
+   * `100`, or if `alpha` isn't between `0` and `1`.
+   */
+  constructor(options: {
+    hue: number;
+    saturation: number;
+    lightness: number;
+    alpha?: number;
+  });
+
+  /**
+   * Creates an HWB color.
+   *
+   * **Only** `undefined` should be passed to indicate a missing `alpha`. If
+   * `null` is passed instead, it will be treated as a [missing component] in
+   * future versions of Dart Sass. See [breaking changes] for details.
+   *
+   * [missing component]: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#missing_color_components
+   * [breaking changes]: /documentation/breaking-changes/null-alpha
+   *
+   * @throws `Error` if `whiteness` or `blackness` aren't between `0` and `100`,
+   * or if `alpha` isn't between `0` and `1`.
+   */
+  constructor(options: {
+    hue: number;
+    whiteness: number;
+    blackness: number;
+    alpha?: number;
+  });
+
+  /** This color's red channel, between `0` and `255`. */
+  get red(): number;
+
+  /** This color's green channel, between `0` and `255`. */
+  get green(): number;
+
+  /** This color's blue channel, between `0` and `255`. */
+  get blue(): number;
+
+  /** This color's hue, between `0` and `360`. */
+  get hue(): number;
+
+  /** This color's saturation, between `0` and `100`. */
+  get saturation(): number;
+
+  /** This color's lightness, between `0` and `100`. */
+  get lightness(): number;
+
+  /** This color's whiteness, between `0` and `100`. */
+  get whiteness(): number;
+
+  /** This color's blackness, between `0` and `100`. */
+  get blackness(): number;
+
+  /** This color's alpha channel, between `0` and `1`. */
+  get alpha(): number;
+
+  /**
+   * Changes one or more of this color's RGB channels and returns the result.
+   */
+  change(options: {
+    red?: number;
+    green?: number;
+    blue?: number;
+    alpha?: number;
+  }): SassColor;
+
+  /**
+   * Changes one or more of this color's HSL channels and returns the result.
+   */
+  change(options: {
+    hue?: number;
+    saturation?: number;
+    lightness?: number;
+    alpha?: number;
+  }): SassColor;
+
+  /**
+   * Changes one or more of this color's HWB channels and returns the result.
+   */
+  change(options: {
+    hue?: number;
+    whiteness?: number;
+    blackness?: number;
+    alpha?: number;
+  }): SassColor;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/function.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/function.d.ts
new file mode 100644
index 00000000..81bbf89f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/function.d.ts
@@ -0,0 +1,22 @@
+import {Value} from './index';
+
+/**
+ * Sass's [function type](https://sass-lang.com/documentation/values/functions).
+ *
+ * **Heads up!** Although first-class Sass functions can be processed by custom
+ * functions, there's no way to invoke them outside of a Sass stylesheet.
+ *
+ * @category Custom Function
+ */
+export class SassFunction extends Value {
+  /**
+   * Creates a new first-class function that can be invoked using
+   * [`meta.call()`](https://sass-lang.com/documentation/modules/meta#call).
+   *
+   * @param signature - The function signature, like you'd write for the
+   * [`@function rule`](https://sass-lang.com/documentation/at-rules/function).
+   * @param callback - The callback that's invoked when this function is called,
+   * just like for a {@link CustomFunction}.
+   */
+  constructor(signature: string, callback: (args: Value[]) => Value);
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/index.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/index.d.ts
new file mode 100644
index 00000000..38d28df8
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/index.d.ts
@@ -0,0 +1,199 @@
+import {List, ValueObject} from 'immutable';
+
+import {SassBoolean} from './boolean';
+import {SassCalculation} from './calculation';
+import {SassColor} from './color';
+import {SassFunction} from './function';
+import {ListSeparator} from './list';
+import {SassMap} from './map';
+import {SassMixin} from './mixin';
+import {SassNumber} from './number';
+import {SassString} from './string';
+
+export {SassArgumentList} from './argument_list';
+export {SassBoolean, sassTrue, sassFalse} from './boolean';
+export {
+  SassCalculation,
+  CalculationValue,
+  CalculationOperator,
+  CalculationOperation,
+  CalculationInterpolation,
+} from './calculation';
+export {SassColor} from './color';
+export {SassFunction} from './function';
+export {SassList, ListSeparator} from './list';
+export {SassMap} from './map';
+export {SassMixin} from './mixin';
+export {SassNumber} from './number';
+export {SassString} from './string';
+
+/**
+ * Sass's [`null` value](https://sass-lang.com/documentation/values/null).
+ *
+ * @category Custom Function
+ */
+export const sassNull: Value;
+
+/**
+ * The abstract base class of Sass's value types.
+ *
+ * This is passed to and returned by {@link CustomFunction}s, which are passed
+ * into the Sass implementation using {@link Options.functions}.
+ *
+ * @category Custom Function
+ */
+export abstract class Value implements ValueObject {
+  protected constructor();
+
+  /**
+   * This value as a list.
+   *
+   * All SassScript values can be used as lists. Maps count as lists of pairs,
+   * and all other values count as single-value lists.
+   *
+   * @returns An immutable {@link List} from the [`immutable`
+   * package](https://immutable-js.com/).
+   */
+  get asList(): List<Value>;
+
+  /**
+   * Whether this value as a list has brackets.
+   *
+   * All SassScript values can be used as lists. Maps count as lists of pairs,
+   * and all other values count as single-value lists.
+   */
+  get hasBrackets(): boolean;
+
+  /**
+   * Whether the value counts as `true` in an `@if` statement and other
+   * contexts.
+   */
+  get isTruthy(): boolean;
+
+  /**
+   * Returns JavaScript's `null` value if this is {@link sassNull}, and returns
+   * `this` otherwise.
+   */
+  get realNull(): null | Value;
+
+  /**
+   * The separator for this value as a list.
+   *
+   * All SassScript values can be used as lists. Maps count as lists of pairs,
+   * and all other values count as single-value lists.
+   */
+  get separator(): ListSeparator;
+
+  /**
+   * Converts `sassIndex` into a JavaScript-style index into the list returned
+   * by {@link asList}.
+   *
+   * Sass indexes are one-based, while JavaScript indexes are zero-based. Sass
+   * indexes may also be negative in order to index from the end of the list.
+   *
+   * @param sassIndex - The Sass-style index into this as a list.
+   * @param name - The name of the function argument `sassIndex` came from
+   * (without the `$`) if it came from an argument. Used for error reporting.
+   * @throws `Error` If `sassIndex` isn't a number, if that number isn't an
+   * integer, or if that integer isn't a valid index for {@link asList}.
+   */
+  sassIndexToListIndex(sassIndex: Value, name?: string): number;
+
+  /**
+   * Returns the value at index `index` in this value as a list, or `undefined`
+   * if `index` isn't valid for this list.
+   *
+   * All SassScript values can be used as lists. Maps count as lists of pairs,
+   * and all other values count as single-value lists.
+   *
+   * This is a shorthand for `this.asList.get(index)`, although it may be more
+   * efficient in some cases.
+   *
+   * **Heads up!** This method uses the same indexing conventions as the
+   * `immutable` package: unlike Sass the index of the first element is 0, but
+   * like Sass negative numbers index from the end of the list.
+   */
+  get(index: number): Value | undefined;
+
+  /**
+   * Throws if `this` isn't a {@link SassBoolean}.
+   *
+   * **Heads up!** Functions should generally use {@link isTruthy} rather than
+   * requiring a literal boolean.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertBoolean(name?: string): SassBoolean;
+
+  /**
+   * Throws if `this` isn't a {@link SassCalculation}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertCalculation(name?: string): SassCalculation;
+
+  /**
+   * Throws if `this` isn't a {@link SassColor}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertColor(name?: string): SassColor;
+
+  /**
+   * Throws if `this` isn't a {@link SassFunction}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertFunction(name?: string): SassFunction;
+
+  /**
+   * Throws if `this` isn't a {@link SassMap}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertMap(name?: string): SassMap;
+
+  /**
+   * Throws if `this` isn't a {@link SassMixin}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertMixin(name?: string): SassMixin;
+
+  /**
+   * Throws if `this` isn't a {@link SassNumber}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertNumber(name?: string): SassNumber;
+
+  /**
+   * Throws if `this` isn't a {@link SassString}.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertString(name?: string): SassString;
+
+  /**
+   * Returns `this` as a map if it counts as one (empty lists count as empty
+   * maps) or `null` if it doesn't.
+   */
+  tryMap(): SassMap | null;
+
+  /** Returns whether `this` represents the same value as `other`. */
+  equals(other: Value): boolean;
+
+  /** Returns a hash code that can be used to store `this` in a hash map. */
+  hashCode(): number;
+
+  /** @hidden */
+  toString(): string;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/list.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/list.d.ts
new file mode 100644
index 00000000..daeccd95
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/list.d.ts
@@ -0,0 +1,54 @@
+import {List} from 'immutable';
+
+import {Value} from './index';
+
+/**
+ * Possible separators used by Sass lists. The special separator `null` is only
+ * used for lists with fewer than two elements, and indicates that the separator
+ * has not yet been decided for this list.
+ *
+ * @category Custom Function
+ */
+export type ListSeparator = ',' | '/' | ' ' | null;
+
+/**
+ * Sass's [list type](https://sass-lang.com/documentation/values/lists).
+ *
+ * @category Custom Function
+ */
+export class SassList extends Value {
+  /**
+   * Creates a new list.
+   *
+   * @param contents - The contents of the list. This may be either a plain
+   * JavaScript array or an immutable {@link List} from the [`immutable`
+   * package](https://immutable-js.com/).
+   *
+   * @param options.separator - The separator to use between elements of this
+   * list. Defaults to `','`.
+   *
+   * @param options.brackets - Whether the list has square brackets. Defaults to
+   * `false`.
+   */
+  constructor(
+    contents: Value[] | List<Value>,
+    options?: {
+      separator?: ListSeparator;
+      brackets?: boolean;
+    }
+  );
+
+  /**
+   * Creates an empty list.
+   *
+   * @param options.separator - The separator to use between elements of this
+   * list. Defaults to `','`.
+   *
+   * @param options.brackets - Whether the list has square brackets. Defaults to
+   * `false`.
+   */
+  constructor(options?: {separator?: ListSeparator; brackets?: boolean});
+
+  /** @hidden */
+  get separator(): ListSeparator;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/map.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/map.d.ts
new file mode 100644
index 00000000..60edb9c4
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/map.d.ts
@@ -0,0 +1,41 @@
+import {OrderedMap} from 'immutable';
+
+import {SassList} from './list';
+import {Value} from './index';
+
+/**
+ * Sass's [map type](https://sass-lang.com/documentation/values/maps).
+ *
+ * @category Custom Function
+ */
+export class SassMap extends Value {
+  /**
+   * Creates a new map.
+   *
+   * @param contents - The contents of the map. This is an immutable
+   * `OrderedMap` from the [`immutable` package](https://immutable-js.com/).
+   * Defaults to an empty map.
+   */
+  constructor(contents?: OrderedMap<Value, Value>);
+
+  /**
+   * Returns the contents of this map as an immutable {@link OrderedMap} from the
+   * [`immutable` package](https://immutable-js.com/).
+   */
+  get contents(): OrderedMap<Value, Value>;
+
+  /**
+   * Returns the value associated with `key` in this map, or `undefined` if
+   * `key` isn't in the map.
+   *
+   * This is a shorthand for `this.contents.get(key)`, although it may be more
+   * efficient in some cases.
+   */
+  get(key: Value): Value | undefined;
+
+  /** Inherited from {@link Value.get}. */
+  get(index: number): SassList | undefined;
+
+  /** @hidden */
+  tryMap(): SassMap;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/mixin.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/mixin.d.ts
new file mode 100644
index 00000000..44af9967
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/mixin.d.ts
@@ -0,0 +1,14 @@
+import {Value} from './index';
+
+/**
+ * Sass's [mixin type](https://sass-lang.com/documentation/values/mixins).
+ *
+ * @category Custom Function
+ */
+export class SassMixin extends Value {
+  /**
+   * It is not possible to construct a Sass mixin outside of Sass. Attempting to
+   * construct one will throw an exception.
+   */
+  constructor();
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/number.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/number.d.ts
new file mode 100644
index 00000000..ba304136
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/number.d.ts
@@ -0,0 +1,305 @@
+import {List} from 'immutable';
+
+import {Value} from './index';
+
+/**
+ * Sass's [number type](https://sass-lang.com/documentation/values/numbers).
+ *
+ * @category Custom Function
+ */
+export class SassNumber extends Value {
+  /**
+   * Creates a new number with more complex units than just a single numerator.
+   *
+   * Upon construction, any compatible numerator and denominator units are
+   * simplified away according to the conversion factor between them.
+   *
+   * @param value - The number's numeric value.
+   *
+   * @param unit - If this is a string, it's used as the single numerator unit
+   * for the number.
+   *
+   * @param unit.numeratorUnits - If passed, these are the numerator units to
+   * use for the number. This may be either a plain JavaScript array or an
+   * immutable {@link List} from the [`immutable`
+   * package](https://immutable-js.com/).
+   *
+   * @param unit.denominatorUnits - If passed, these are the denominator units
+   * to use for the number. This may be either a plain JavaScript array or an
+   * immutable {@link List} from the [`immutable`
+   * package](https://immutable-js.com/).
+   */
+  constructor(
+    value: number,
+    unit?:
+      | string
+      | {
+          numeratorUnits?: string[] | List<string>;
+          denominatorUnits?: string[] | List<string>;
+        }
+  );
+
+  /** This number's numeric value. */
+  get value(): number;
+
+  /** Whether {@link value} is an integer according to Sass's equality logic. */
+  get isInt(): boolean;
+
+  /**
+   * If {@link value} is an integer according to {@link isInt}, returns {@link
+   * value} rounded to that integer. If it's not an integer, returns `null`.
+   */
+  get asInt(): number | null;
+
+  /**
+   * This number's numerator units as an immutable {@link List} from the
+   * [`immutable` package](https://immutable-js.com/).
+   */
+  get numeratorUnits(): List<string>;
+
+  /**
+   * This number's denominator units as an immutable {@link List} from the
+   * [`immutable` package](https://immutable-js.com/).
+   */
+  get denominatorUnits(): List<string>;
+
+  /** Whether this number has any numerator or denominator units. */
+  get hasUnits(): boolean;
+
+  /**
+   * If {@link value} is an integer according to {@link isInt}, returns it
+   * rounded to that integer. Otherwise, throws an error.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertInt(name?: string): number;
+
+  /**
+   * Returns {@link value} if it's within `min` and `max`. If {@link value} is
+   * equal to `min` or `max` according to Sass's equality, returns `min` or
+   * `max` respectively. Otherwise, throws an error.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertInRange(min: number, max: number, name?: string): number;
+
+  /**
+   * If this number has no units, returns it. Otherwise, throws an error.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertNoUnits(name?: string): SassNumber;
+
+  /**
+   * If this number has `unit` as its only unit (and as a numerator), returns
+   * this number. Otherwise, throws an error.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  assertUnit(unit: string, name?: string): SassNumber;
+
+  /** Whether this number has `unit` as its only unit (and as a numerator). */
+  hasUnit(unit: string): boolean;
+
+  /**
+   * Whether this has exactly one numerator unit, and that unit is compatible
+   * with `unit`.
+   */
+  compatibleWithUnit(unit: string): boolean;
+
+  /**
+   * Returns a copy of this number, converted to the units represented by
+   * `newNumerators` and `newDenominators`.
+   *
+   * @throws `Error` if this number's units are incompatible with
+   * `newNumerators` and `newDenominators`; or if this number is unitless and
+   * either `newNumerators` or `newDenominators` are not empty, or vice-versa.
+   *
+   * @param newNumerators - The numerator units to convert this number to. This
+   * may be either a plain JavaScript array or an immutable {@link List} from
+   * the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param newDenominators - The denominator units to convert this number to.
+   * This may be either a plain JavaScript array or an immutable {@link List}
+   * from the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  convert(
+    newNumerators: string[] | List<string>,
+    newDenominators: string[] | List<string>,
+    name?: string
+  ): SassNumber;
+
+  /**
+   * Returns a copy of this number, converted to the same units as `other`.
+   *
+   * @throws `Error` if this number's units are incompatible with `other`'s
+   * units, or if either number is unitless but the other is not.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   *
+   * @param otherName - The name of the function argument `other` came from
+   * (without the `$`) if it came from an argument. Used for error reporting.
+   */
+  convertToMatch(
+    other: SassNumber,
+    name?: string,
+    otherName?: string
+  ): SassNumber;
+
+  /**
+   * Returns {@link value}, converted to the units represented by
+   * `newNumerators` and `newDenominators`.
+   *
+   * @throws `Error` if this number's units are incompatible with
+   * `newNumerators` and `newDenominators`; or if this number is unitless and
+   * either `newNumerators` or `newDenominators` are not empty, or vice-versa.
+   *
+   * @param newNumerators - The numerator units to convert {@link value} to.
+   * This may be either a plain JavaScript array or an immutable {@link List}
+   * from the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param newDenominators - The denominator units to convert {@link value} to.
+   * This may be either a plain JavaScript array or an immutable {@link List}
+   * from the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  convertValue(
+    newNumerators: string[] | List<string>,
+    newDenominators: string[] | List<string>,
+    name?: string
+  ): number;
+
+  /**
+   * Returns {@link value}, converted to the same units as `other`.
+   *
+   * @throws `Error` if this number's units are incompatible with `other`'s
+   * units, or if either number is unitless but the other is not.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   *
+   * @param otherName - The name of the function argument `other` came from
+   * (without the `$`) if it came from an argument. Used for error reporting.
+   */
+  convertValueToMatch(
+    other: SassNumber,
+    name?: string,
+    otherName?: string
+  ): number;
+
+  /**
+   * Returns a copy of this number, converted to the units represented by
+   * `newNumerators` and `newDenominators`.
+   *
+   * Unlike {@link convert} this does *not* throw an error if this number is
+   * unitless and either `newNumerators` or `newDenominators` are not empty, or
+   * vice-versa. Instead, it treats all unitless numbers as convertible to and
+   * from all units without changing the value.
+   *
+   * @throws `Error` if this number's units are incompatible with
+   * `newNumerators` and `newDenominators`.
+   *
+   * @param newNumerators - The numerator units to convert this number to. This
+   * may be either a plain JavaScript array or an immutable {@link List} from
+   * the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param newDenominators - The denominator units to convert this number to.
+   * This may be either a plain JavaScript array or an immutable {@link List}
+   * from the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  coerce(
+    newNumerators: string[] | List<string>,
+    newDenominators: string[] | List<string>,
+    name?: string
+  ): SassNumber;
+
+  /**
+   * Returns a copy of this number, converted to the units represented by
+   * `newNumerators` and `newDenominators`.
+   *
+   * Unlike {@link convertToMatch} this does *not* throw an error if this number
+   * is unitless and either `newNumerators` or `newDenominators` are not empty,
+   * or vice-versa. Instead, it treats all unitless numbers as convertible to
+   * and from all units without changing the value.
+   *
+   * @throws `Error` if this number's units are incompatible with `other`'s
+   * units.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   *
+   * @param otherName - The name of the function argument `other` came from
+   * (without the `$`) if it came from an argument. Used for error reporting.
+   */
+  coerceToMatch(
+    other: SassNumber,
+    name?: string,
+    otherName?: string
+  ): SassNumber;
+
+  /**
+   * Returns {@link value}, converted to the units represented by
+   * `newNumerators` and `newDenominators`.
+   *
+   * Unlike {@link convertValue} this does *not* throw an error if this number
+   * is unitless and either `newNumerators` or `newDenominators` are not empty,
+   * or vice-versa. Instead, it treats all unitless numbers as convertible to
+   * and from all units without changing the value.
+   *
+   * @throws `Error` if this number's units are incompatible with
+   * `newNumerators` and `newDenominators`.
+   *
+   * @param newNumerators - The numerator units to convert {@link value} to.
+   * This may be either a plain JavaScript array or an immutable {@link List}
+   * from the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param newDenominators - The denominator units to convert {@link value} to.
+   * This may be either a plain JavaScript array or an immutable {@link List}
+   * from the [`immutable` package](https://immutable-js.com/).
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   */
+  coerceValue(
+    newNumerators: string[] | List<string>,
+    newDenominators: string[] | List<string>,
+    name?: string
+  ): number;
+
+  /**
+   * Returns {@link value}, converted to the units represented by
+   * `newNumerators` and `newDenominators`.
+   *
+   * Unlike {@link convertValueToMatch} this does *not* throw an error if this
+   * number is unitless and either `newNumerators` or `newDenominators` are not
+   * empty, or vice-versa. Instead, it treats all unitless numbers as
+   * convertible to and from all units without changing the value.
+   *
+   * @throws `Error` if this number's units are incompatible with `other`'s
+   * units.
+   *
+   * @param name - The name of the function argument `this` came from (without
+   * the `$`) if it came from an argument. Used for error reporting.
+   *
+   * @param otherName - The name of the function argument `other` came from
+   * (without the `$`) if it came from an argument. Used for error reporting.
+   */
+  coerceValueToMatch(
+    other: SassNumber,
+    name?: string,
+    otherName?: string
+  ): number;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/sass/types/value/string.d.ts b/src/main/webapp/com/css/sass/node_modules/sass/types/value/string.d.ts
new file mode 100644
index 00000000..586b69b3
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/sass/types/value/string.d.ts
@@ -0,0 +1,84 @@
+import {Value} from './index';
+
+/**
+ * Sass's [string type](https://sass-lang.com/documentation/values/strings).
+ *
+ * @category Custom Function
+ */
+export class SassString extends Value {
+  /**
+   * Creates a new string.
+   *
+   * @param text - The contents of the string. For quoted strings, this is the
+   * semantic content—any escape sequences that were been written in the source
+   * text are resolved to their Unicode values. For unquoted strings, though,
+   * escape sequences are preserved as literal backslashes.
+   *
+   * @param options.quotes - Whether the string is quoted. Defaults to `true`.
+   */
+  constructor(
+    text: string,
+    options?: {
+      quotes?: boolean;
+    }
+  );
+
+  /**
+   * Creates an empty string.
+   *
+   * @param options.quotes - Whether the string is quoted. Defaults to `true`.
+   */
+  constructor(options?: {quotes?: boolean});
+
+  /**
+   * The contents of the string.
+   *
+   * For quoted strings, this is the semantic content—any escape sequences that
+   * were been written in the source text are resolved to their Unicode values.
+   * For unquoted strings, though, escape sequences are preserved as literal
+   * backslashes.
+   *
+   * This difference allows us to distinguish between identifiers with escapes,
+   * such as `url\u28 http://example.com\u29`, and unquoted strings that contain
+   * characters that aren't valid in identifiers, such as
+   * `url(http://example.com)`. Unfortunately, it also means that we don't
+   * consider `foo` and `f\6F\6F` the same string.
+   */
+  get text(): string;
+
+  /** Whether this string has quotes. */
+  get hasQuotes(): boolean;
+
+  /**
+   * Sass's notion of this string's length.
+   *
+   * Sass treats strings as a series of Unicode code points while JavaScript
+   * treats them as a series of UTF-16 code units. For example, the character
+   * U+1F60A SMILING FACE WITH SMILING EYES is a single Unicode code point but
+   * is represented in UTF-16 as two code units (`0xD83D` and `0xDE0A`). So in
+   * JavaScript, `"n😊b".length` returns `4`, whereas in Sass
+   * `string.length("n😊b")` returns `3`.
+   */
+  get sassLength(): number;
+
+  /**
+   * Converts `sassIndex` to a JavaScript index into {@link text}.
+   *
+   * Sass indices are one-based, while JavaScript indices are zero-based. Sass
+   * indices may also be negative in order to index from the end of the string.
+   *
+   * In addition, Sass indices refer to Unicode code points while JavaScript
+   * string indices refer to UTF-16 code units. For example, the character
+   * U+1F60A SMILING FACE WITH SMILING EYES is a single Unicode code point but
+   * is represented in UTF-16 as two code units (`0xD83D` and `0xDE0A`). So in
+   * JavaScript, `"n😊b".charCodeAt(1)` returns `0xD83D`, whereas in Sass
+   * `string.slice("n😊b", 1, 1)` returns `"😊"`.
+   *
+   * This function converts Sass's code point indices to JavaScript's code unit
+   * indices. This means it's O(n) in the length of `text`.
+   *
+   * @throws `Error` - If `sassIndex` isn't a number, if that number isn't an
+   * integer, or if that integer isn't a valid index for this string.
+   */
+  sassIndexToStringIndex(sassIndex: Value, name?: string): number;
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/LICENSE b/src/main/webapp/com/css/sass/node_modules/source-map-js/LICENSE
new file mode 100644
index 00000000..ed1b7cf2
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/LICENSE
@@ -0,0 +1,28 @@
+
+Copyright (c) 2009-2011, Mozilla Foundation and contributors
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the names of the Mozilla Foundation nor the names of project
+  contributors may be used to endorse or promote products derived from this
+  software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/README.md b/src/main/webapp/com/css/sass/node_modules/source-map-js/README.md
new file mode 100644
index 00000000..614962d7
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/README.md
@@ -0,0 +1,765 @@
+# Source Map JS
+
+[![NPM](https://nodei.co/npm/source-map-js.png?downloads=true&downloadRank=true)](https://www.npmjs.com/package/source-map-js)
+
+Difference between original [source-map](https://github.com/mozilla/source-map):
+
+> TL,DR: it's fork of original source-map@0.6, but with perfomance optimizations.
+
+This journey starts from [source-map@0.7.0](https://github.com/mozilla/source-map/blob/master/CHANGELOG.md#070). Some part of it was rewritten to Rust and WASM and API became async.
+
+It's still a major block for many libraries like PostCSS or Sass for example because they need to migrate the whole API to the async way. This is the reason why 0.6.1 has 2x more downloads than 0.7.3 while it's faster several times.
+
+![Downloads count](media/downloads.png)
+
+More important that WASM version has some optimizations in JS code too. This is why [community asked to create branch for 0.6 version](https://github.com/mozilla/source-map/issues/324) and port these optimizations but, sadly, the answer was «no». A bit later I discovered [the issue](https://github.com/mozilla/source-map/issues/370) created by [Ben Rothman (@benthemonkey)](https://github.com/benthemonkey) with no response at all.
+
+[Roman Dvornov (@lahmatiy)](https://github.com/lahmatiy) wrote a [serveral posts](https://t.me/gorshochekvarit/76) (russian, only, sorry) about source-map library in his own Telegram channel. He mentioned the article [«Maybe you don't need Rust and WASM to speed up your JS»](https://mrale.ph/blog/2018/02/03/maybe-you-dont-need-rust-to-speed-up-your-js.html) written by [Vyacheslav Egorov (@mraleph)](https://github.com/mraleph). This article contains optimizations and hacks that lead to almost the same performance compare to WASM implementation.
+
+I decided to fork the original source-map and port these optimizations from the article and several others PR from the original source-map.
+
+---------
+
+This is a library to generate and consume the source map format
+[described here][format].
+
+[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit
+
+## Use with Node
+
+    $ npm install source-map-js
+
+<!-- ## Use on the Web
+
+    <script src="https://raw.githubusercontent.com/mozilla/source-map/master/dist/source-map.min.js" defer></script> -->
+
+--------------------------------------------------------------------------------
+
+<!-- `npm run toc` to regenerate the Table of Contents -->
+
+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+## Table of Contents
+
+- [Examples](#examples)
+  - [Consuming a source map](#consuming-a-source-map)
+  - [Generating a source map](#generating-a-source-map)
+    - [With SourceNode (high level API)](#with-sourcenode-high-level-api)
+    - [With SourceMapGenerator (low level API)](#with-sourcemapgenerator-low-level-api)
+- [API](#api)
+  - [SourceMapConsumer](#sourcemapconsumer)
+    - [new SourceMapConsumer(rawSourceMap)](#new-sourcemapconsumerrawsourcemap)
+    - [SourceMapConsumer.prototype.computeColumnSpans()](#sourcemapconsumerprototypecomputecolumnspans)
+    - [SourceMapConsumer.prototype.originalPositionFor(generatedPosition)](#sourcemapconsumerprototypeoriginalpositionforgeneratedposition)
+    - [SourceMapConsumer.prototype.generatedPositionFor(originalPosition)](#sourcemapconsumerprototypegeneratedpositionfororiginalposition)
+    - [SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)](#sourcemapconsumerprototypeallgeneratedpositionsfororiginalposition)
+    - [SourceMapConsumer.prototype.hasContentsOfAllSources()](#sourcemapconsumerprototypehascontentsofallsources)
+    - [SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])](#sourcemapconsumerprototypesourcecontentforsource-returnnullonmissing)
+    - [SourceMapConsumer.prototype.eachMapping(callback, context, order)](#sourcemapconsumerprototypeeachmappingcallback-context-order)
+  - [SourceMapGenerator](#sourcemapgenerator)
+    - [new SourceMapGenerator([startOfSourceMap])](#new-sourcemapgeneratorstartofsourcemap)
+    - [SourceMapGenerator.fromSourceMap(sourceMapConsumer)](#sourcemapgeneratorfromsourcemapsourcemapconsumer)
+    - [SourceMapGenerator.prototype.addMapping(mapping)](#sourcemapgeneratorprototypeaddmappingmapping)
+    - [SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)](#sourcemapgeneratorprototypesetsourcecontentsourcefile-sourcecontent)
+    - [SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])](#sourcemapgeneratorprototypeapplysourcemapsourcemapconsumer-sourcefile-sourcemappath)
+    - [SourceMapGenerator.prototype.toString()](#sourcemapgeneratorprototypetostring)
+  - [SourceNode](#sourcenode)
+    - [new SourceNode([line, column, source[, chunk[, name]]])](#new-sourcenodeline-column-source-chunk-name)
+    - [SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])](#sourcenodefromstringwithsourcemapcode-sourcemapconsumer-relativepath)
+    - [SourceNode.prototype.add(chunk)](#sourcenodeprototypeaddchunk)
+    - [SourceNode.prototype.prepend(chunk)](#sourcenodeprototypeprependchunk)
+    - [SourceNode.prototype.setSourceContent(sourceFile, sourceContent)](#sourcenodeprototypesetsourcecontentsourcefile-sourcecontent)
+    - [SourceNode.prototype.walk(fn)](#sourcenodeprototypewalkfn)
+    - [SourceNode.prototype.walkSourceContents(fn)](#sourcenodeprototypewalksourcecontentsfn)
+    - [SourceNode.prototype.join(sep)](#sourcenodeprototypejoinsep)
+    - [SourceNode.prototype.replaceRight(pattern, replacement)](#sourcenodeprototypereplacerightpattern-replacement)
+    - [SourceNode.prototype.toString()](#sourcenodeprototypetostring)
+    - [SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])](#sourcenodeprototypetostringwithsourcemapstartofsourcemap)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
+
+## Examples
+
+### Consuming a source map
+
+```js
+var rawSourceMap = {
+  version: 3,
+  file: 'min.js',
+  names: ['bar', 'baz', 'n'],
+  sources: ['one.js', 'two.js'],
+  sourceRoot: 'http://example.com/www/js/',
+  mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'
+};
+
+var smc = new SourceMapConsumer(rawSourceMap);
+
+console.log(smc.sources);
+// [ 'http://example.com/www/js/one.js',
+//   'http://example.com/www/js/two.js' ]
+
+console.log(smc.originalPositionFor({
+  line: 2,
+  column: 28
+}));
+// { source: 'http://example.com/www/js/two.js',
+//   line: 2,
+//   column: 10,
+//   name: 'n' }
+
+console.log(smc.generatedPositionFor({
+  source: 'http://example.com/www/js/two.js',
+  line: 2,
+  column: 10
+}));
+// { line: 2, column: 28 }
+
+smc.eachMapping(function (m) {
+  // ...
+});
+```
+
+### Generating a source map
+
+In depth guide:
+[**Compiling to JavaScript, and Debugging with Source Maps**](https://hacks.mozilla.org/2013/05/compiling-to-javascript-and-debugging-with-source-maps/)
+
+#### With SourceNode (high level API)
+
+```js
+function compile(ast) {
+  switch (ast.type) {
+  case 'BinaryExpression':
+    return new SourceNode(
+      ast.location.line,
+      ast.location.column,
+      ast.location.source,
+      [compile(ast.left), " + ", compile(ast.right)]
+    );
+  case 'Literal':
+    return new SourceNode(
+      ast.location.line,
+      ast.location.column,
+      ast.location.source,
+      String(ast.value)
+    );
+  // ...
+  default:
+    throw new Error("Bad AST");
+  }
+}
+
+var ast = parse("40 + 2", "add.js");
+console.log(compile(ast).toStringWithSourceMap({
+  file: 'add.js'
+}));
+// { code: '40 + 2',
+//   map: [object SourceMapGenerator] }
+```
+
+#### With SourceMapGenerator (low level API)
+
+```js
+var map = new SourceMapGenerator({
+  file: "source-mapped.js"
+});
+
+map.addMapping({
+  generated: {
+    line: 10,
+    column: 35
+  },
+  source: "foo.js",
+  original: {
+    line: 33,
+    column: 2
+  },
+  name: "christopher"
+});
+
+console.log(map.toString());
+// '{"version":3,"file":"source-mapped.js","sources":["foo.js"],"names":["christopher"],"mappings":";;;;;;;;;mCAgCEA"}'
+```
+
+## API
+
+Get a reference to the module:
+
+```js
+// Node.js
+var sourceMap = require('source-map');
+
+// Browser builds
+var sourceMap = window.sourceMap;
+
+// Inside Firefox
+const sourceMap = require("devtools/toolkit/sourcemap/source-map.js");
+```
+
+### SourceMapConsumer
+
+A SourceMapConsumer instance represents a parsed source map which we can query
+for information about the original file positions by giving it a file position
+in the generated source.
+
+#### new SourceMapConsumer(rawSourceMap)
+
+The only parameter is the raw source map (either as a string which can be
+`JSON.parse`'d, or an object). According to the spec, source maps have the
+following attributes:
+
+* `version`: Which version of the source map spec this map is following.
+
+* `sources`: An array of URLs to the original source files.
+
+* `names`: An array of identifiers which can be referenced by individual
+  mappings.
+
+* `sourceRoot`: Optional. The URL root from which all sources are relative.
+
+* `sourcesContent`: Optional. An array of contents of the original source files.
+
+* `mappings`: A string of base64 VLQs which contain the actual mappings.
+
+* `file`: Optional. The generated filename this source map is associated with.
+
+```js
+var consumer = new sourceMap.SourceMapConsumer(rawSourceMapJsonData);
+```
+
+#### SourceMapConsumer.prototype.computeColumnSpans()
+
+Compute the last column for each generated mapping. The last column is
+inclusive.
+
+```js
+// Before:
+consumer.allGeneratedPositionsFor({ line: 2, source: "foo.coffee" })
+// [ { line: 2,
+//     column: 1 },
+//   { line: 2,
+//     column: 10 },
+//   { line: 2,
+//     column: 20 } ]
+
+consumer.computeColumnSpans();
+
+// After:
+consumer.allGeneratedPositionsFor({ line: 2, source: "foo.coffee" })
+// [ { line: 2,
+//     column: 1,
+//     lastColumn: 9 },
+//   { line: 2,
+//     column: 10,
+//     lastColumn: 19 },
+//   { line: 2,
+//     column: 20,
+//     lastColumn: Infinity } ]
+
+```
+
+#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)
+
+Returns the original source, line, and column information for the generated
+source's line and column positions provided. The only argument is an object with
+the following properties:
+
+* `line`: The line number in the generated source.  Line numbers in
+  this library are 1-based (note that the underlying source map
+  specification uses 0-based line numbers -- this library handles the
+  translation).
+
+* `column`: The column number in the generated source.  Column numbers
+  in this library are 0-based.
+
+* `bias`: Either `SourceMapConsumer.GREATEST_LOWER_BOUND` or
+  `SourceMapConsumer.LEAST_UPPER_BOUND`. Specifies whether to return the closest
+  element that is smaller than or greater than the one we are searching for,
+  respectively, if the exact element cannot be found.  Defaults to
+  `SourceMapConsumer.GREATEST_LOWER_BOUND`.
+
+and an object is returned with the following properties:
+
+* `source`: The original source file, or null if this information is not
+  available.
+
+* `line`: The line number in the original source, or null if this information is
+  not available.  The line number is 1-based.
+
+* `column`: The column number in the original source, or null if this
+  information is not available.  The column number is 0-based.
+
+* `name`: The original identifier, or null if this information is not available.
+
+```js
+consumer.originalPositionFor({ line: 2, column: 10 })
+// { source: 'foo.coffee',
+//   line: 2,
+//   column: 2,
+//   name: null }
+
+consumer.originalPositionFor({ line: 99999999999999999, column: 999999999999999 })
+// { source: null,
+//   line: null,
+//   column: null,
+//   name: null }
+```
+
+#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)
+
+Returns the generated line and column information for the original source,
+line, and column positions provided. The only argument is an object with
+the following properties:
+
+* `source`: The filename of the original source.
+
+* `line`: The line number in the original source.  The line number is
+  1-based.
+
+* `column`: The column number in the original source.  The column
+  number is 0-based.
+
+and an object is returned with the following properties:
+
+* `line`: The line number in the generated source, or null.  The line
+  number is 1-based.
+
+* `column`: The column number in the generated source, or null.  The
+  column number is 0-based.
+
+```js
+consumer.generatedPositionFor({ source: "example.js", line: 2, column: 10 })
+// { line: 1,
+//   column: 56 }
+```
+
+#### SourceMapConsumer.prototype.allGeneratedPositionsFor(originalPosition)
+
+Returns all generated line and column information for the original source, line,
+and column provided. If no column is provided, returns all mappings
+corresponding to a either the line we are searching for or the next closest line
+that has any mappings. Otherwise, returns all mappings corresponding to the
+given line and either the column we are searching for or the next closest column
+that has any offsets.
+
+The only argument is an object with the following properties:
+
+* `source`: The filename of the original source.
+
+* `line`: The line number in the original source.  The line number is
+  1-based.
+
+* `column`: Optional. The column number in the original source.  The
+  column number is 0-based.
+
+and an array of objects is returned, each with the following properties:
+
+* `line`: The line number in the generated source, or null.  The line
+  number is 1-based.
+
+* `column`: The column number in the generated source, or null.  The
+  column number is 0-based.
+
+```js
+consumer.allGeneratedpositionsfor({ line: 2, source: "foo.coffee" })
+// [ { line: 2,
+//     column: 1 },
+//   { line: 2,
+//     column: 10 },
+//   { line: 2,
+//     column: 20 } ]
+```
+
+#### SourceMapConsumer.prototype.hasContentsOfAllSources()
+
+Return true if we have the embedded source content for every source listed in
+the source map, false otherwise.
+
+In other words, if this method returns `true`, then
+`consumer.sourceContentFor(s)` will succeed for every source `s` in
+`consumer.sources`.
+
+```js
+// ...
+if (consumer.hasContentsOfAllSources()) {
+  consumerReadyCallback(consumer);
+} else {
+  fetchSources(consumer, consumerReadyCallback);
+}
+// ...
+```
+
+#### SourceMapConsumer.prototype.sourceContentFor(source[, returnNullOnMissing])
+
+Returns the original source content for the source provided. The only
+argument is the URL of the original source file.
+
+If the source content for the given source is not found, then an error is
+thrown. Optionally, pass `true` as the second param to have `null` returned
+instead.
+
+```js
+consumer.sources
+// [ "my-cool-lib.clj" ]
+
+consumer.sourceContentFor("my-cool-lib.clj")
+// "..."
+
+consumer.sourceContentFor("this is not in the source map");
+// Error: "this is not in the source map" is not in the source map
+
+consumer.sourceContentFor("this is not in the source map", true);
+// null
+```
+
+#### SourceMapConsumer.prototype.eachMapping(callback, context, order)
+
+Iterate over each mapping between an original source/line/column and a
+generated line/column in this source map.
+
+* `callback`: The function that is called with each mapping. Mappings have the
+  form `{ source, generatedLine, generatedColumn, originalLine, originalColumn,
+  name }`
+
+* `context`: Optional. If specified, this object will be the value of `this`
+  every time that `callback` is called.
+
+* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or
+  `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over
+  the mappings sorted by the generated file's line/column order or the
+  original's source/line/column order, respectively. Defaults to
+  `SourceMapConsumer.GENERATED_ORDER`.
+
+```js
+consumer.eachMapping(function (m) { console.log(m); })
+// ...
+// { source: 'illmatic.js',
+//   generatedLine: 1,
+//   generatedColumn: 0,
+//   originalLine: 1,
+//   originalColumn: 0,
+//   name: null }
+// { source: 'illmatic.js',
+//   generatedLine: 2,
+//   generatedColumn: 0,
+//   originalLine: 2,
+//   originalColumn: 0,
+//   name: null }
+// ...
+```
+### SourceMapGenerator
+
+An instance of the SourceMapGenerator represents a source map which is being
+built incrementally.
+
+#### new SourceMapGenerator([startOfSourceMap])
+
+You may pass an object with the following properties:
+
+* `file`: The filename of the generated source that this source map is
+  associated with.
+
+* `sourceRoot`: A root for all relative URLs in this source map.
+
+* `skipValidation`: Optional. When `true`, disables validation of mappings as
+  they are added. This can improve performance but should be used with
+  discretion, as a last resort. Even then, one should avoid using this flag when
+  running tests, if possible.
+
+* `ignoreInvalidMapping`: Optional. When `true`, instead of throwing error on
+  invalid mapping, it will be ignored.
+
+```js
+var generator = new sourceMap.SourceMapGenerator({
+  file: "my-generated-javascript-file.js",
+  sourceRoot: "http://example.com/app/js/"
+});
+```
+
+#### SourceMapGenerator.fromSourceMap(sourceMapConsumer, sourceMapGeneratorOptions)
+
+Creates a new `SourceMapGenerator` from an existing `SourceMapConsumer` instance.
+
+* `sourceMapConsumer` The SourceMap.
+
+* `sourceMapGeneratorOptions` options that will be passed to the SourceMapGenerator constructor which used under the hood.
+
+```js
+var generator = sourceMap.SourceMapGenerator.fromSourceMap(consumer, {
+  ignoreInvalidMapping: true,
+});
+```
+
+#### SourceMapGenerator.prototype.addMapping(mapping)
+
+Add a single mapping from original source line and column to the generated
+source's line and column for this source map being created. The mapping object
+should have the following properties:
+
+* `generated`: An object with the generated line and column positions.
+
+* `original`: An object with the original line and column positions.
+
+* `source`: The original source file (relative to the sourceRoot).
+
+* `name`: An optional original token name for this mapping.
+
+```js
+generator.addMapping({
+  source: "module-one.scm",
+  original: { line: 128, column: 0 },
+  generated: { line: 3, column: 456 }
+})
+```
+
+#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)
+
+Set the source content for an original source file.
+
+* `sourceFile` the URL of the original source file.
+
+* `sourceContent` the content of the source file.
+
+```js
+generator.setSourceContent("module-one.scm",
+                           fs.readFileSync("path/to/module-one.scm"))
+```
+
+#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile[, sourceMapPath]])
+
+Applies a SourceMap for a source file to the SourceMap.
+Each mapping to the supplied source file is rewritten using the
+supplied SourceMap. Note: The resolution for the resulting mappings
+is the minimum of this map and the supplied map.
+
+* `sourceMapConsumer`: The SourceMap to be applied.
+
+* `sourceFile`: Optional. The filename of the source file.
+  If omitted, sourceMapConsumer.file will be used, if it exists.
+  Otherwise an error will be thrown.
+
+* `sourceMapPath`: Optional. The dirname of the path to the SourceMap
+  to be applied. If relative, it is relative to the SourceMap.
+
+  This parameter is needed when the two SourceMaps aren't in the same
+  directory, and the SourceMap to be applied contains relative source
+  paths. If so, those relative source paths need to be rewritten
+  relative to the SourceMap.
+
+  If omitted, it is assumed that both SourceMaps are in the same directory,
+  thus not needing any rewriting. (Supplying `'.'` has the same effect.)
+
+#### SourceMapGenerator.prototype.toString()
+
+Renders the source map being generated to a string.
+
+```js
+generator.toString()
+// '{"version":3,"sources":["module-one.scm"],"names":[],"mappings":"...snip...","file":"my-generated-javascript-file.js","sourceRoot":"http://example.com/app/js/"}'
+```
+
+### SourceNode
+
+SourceNodes provide a way to abstract over interpolating and/or concatenating
+snippets of generated JavaScript source code, while maintaining the line and
+column information associated between those snippets and the original source
+code. This is useful as the final intermediate representation a compiler might
+use before outputting the generated JS and source map.
+
+#### new SourceNode([line, column, source[, chunk[, name]]])
+
+* `line`: The original line number associated with this source node, or null if
+  it isn't associated with an original line.  The line number is 1-based.
+
+* `column`: The original column number associated with this source node, or null
+  if it isn't associated with an original column.  The column number
+  is 0-based.
+
+* `source`: The original source's filename; null if no filename is provided.
+
+* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see
+  below.
+
+* `name`: Optional. The original identifier.
+
+```js
+var node = new SourceNode(1, 2, "a.cpp", [
+  new SourceNode(3, 4, "b.cpp", "extern int status;\n"),
+  new SourceNode(5, 6, "c.cpp", "std::string* make_string(size_t n);\n"),
+  new SourceNode(7, 8, "d.cpp", "int main(int argc, char** argv) {}\n"),
+]);
+```
+
+#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer[, relativePath])
+
+Creates a SourceNode from generated code and a SourceMapConsumer.
+
+* `code`: The generated code
+
+* `sourceMapConsumer` The SourceMap for the generated code
+
+* `relativePath` The optional path that relative sources in `sourceMapConsumer`
+  should be relative to.
+
+```js
+var consumer = new SourceMapConsumer(fs.readFileSync("path/to/my-file.js.map", "utf8"));
+var node = SourceNode.fromStringWithSourceMap(fs.readFileSync("path/to/my-file.js"),
+                                              consumer);
+```
+
+#### SourceNode.prototype.add(chunk)
+
+Add a chunk of generated JS to this source node.
+
+* `chunk`: A string snippet of generated JS code, another instance of
+   `SourceNode`, or an array where each member is one of those things.
+
+```js
+node.add(" + ");
+node.add(otherNode);
+node.add([leftHandOperandNode, " + ", rightHandOperandNode]);
+```
+
+#### SourceNode.prototype.prepend(chunk)
+
+Prepend a chunk of generated JS to this source node.
+
+* `chunk`: A string snippet of generated JS code, another instance of
+   `SourceNode`, or an array where each member is one of those things.
+
+```js
+node.prepend("/** Build Id: f783haef86324gf **/\n\n");
+```
+
+#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)
+
+Set the source content for a source file. This will be added to the
+`SourceMap` in the `sourcesContent` field.
+
+* `sourceFile`: The filename of the source file
+
+* `sourceContent`: The content of the source file
+
+```js
+node.setSourceContent("module-one.scm",
+                      fs.readFileSync("path/to/module-one.scm"))
+```
+
+#### SourceNode.prototype.walk(fn)
+
+Walk over the tree of JS snippets in this node and its children. The walking
+function is called once for each snippet of JS and is passed that snippet and
+the its original associated source's line/column location.
+
+* `fn`: The traversal function.
+
+```js
+var node = new SourceNode(1, 2, "a.js", [
+  new SourceNode(3, 4, "b.js", "uno"),
+  "dos",
+  [
+    "tres",
+    new SourceNode(5, 6, "c.js", "quatro")
+  ]
+]);
+
+node.walk(function (code, loc) { console.log("WALK:", code, loc); })
+// WALK: uno { source: 'b.js', line: 3, column: 4, name: null }
+// WALK: dos { source: 'a.js', line: 1, column: 2, name: null }
+// WALK: tres { source: 'a.js', line: 1, column: 2, name: null }
+// WALK: quatro { source: 'c.js', line: 5, column: 6, name: null }
+```
+
+#### SourceNode.prototype.walkSourceContents(fn)
+
+Walk over the tree of SourceNodes. The walking function is called for each
+source file content and is passed the filename and source content.
+
+* `fn`: The traversal function.
+
+```js
+var a = new SourceNode(1, 2, "a.js", "generated from a");
+a.setSourceContent("a.js", "original a");
+var b = new SourceNode(1, 2, "b.js", "generated from b");
+b.setSourceContent("b.js", "original b");
+var c = new SourceNode(1, 2, "c.js", "generated from c");
+c.setSourceContent("c.js", "original c");
+
+var node = new SourceNode(null, null, null, [a, b, c]);
+node.walkSourceContents(function (source, contents) { console.log("WALK:", source, ":", contents); })
+// WALK: a.js : original a
+// WALK: b.js : original b
+// WALK: c.js : original c
+```
+
+#### SourceNode.prototype.join(sep)
+
+Like `Array.prototype.join` except for SourceNodes. Inserts the separator
+between each of this source node's children.
+
+* `sep`: The separator.
+
+```js
+var lhs = new SourceNode(1, 2, "a.rs", "my_copy");
+var operand = new SourceNode(3, 4, "a.rs", "=");
+var rhs = new SourceNode(5, 6, "a.rs", "orig.clone()");
+
+var node = new SourceNode(null, null, null, [ lhs, operand, rhs ]);
+var joinedNode = node.join(" ");
+```
+
+#### SourceNode.prototype.replaceRight(pattern, replacement)
+
+Call `String.prototype.replace` on the very right-most source snippet. Useful
+for trimming white space from the end of a source node, etc.
+
+* `pattern`: The pattern to replace.
+
+* `replacement`: The thing to replace the pattern with.
+
+```js
+// Trim trailing white space.
+node.replaceRight(/\s*$/, "");
+```
+
+#### SourceNode.prototype.toString()
+
+Return the string representation of this source node. Walks over the tree and
+concatenates all the various snippets together to one string.
+
+```js
+var node = new SourceNode(1, 2, "a.js", [
+  new SourceNode(3, 4, "b.js", "uno"),
+  "dos",
+  [
+    "tres",
+    new SourceNode(5, 6, "c.js", "quatro")
+  ]
+]);
+
+node.toString()
+// 'unodostresquatro'
+```
+
+#### SourceNode.prototype.toStringWithSourceMap([startOfSourceMap])
+
+Returns the string representation of this tree of source nodes, plus a
+SourceMapGenerator which contains all the mappings between the generated and
+original sources.
+
+The arguments are the same as those to `new SourceMapGenerator`.
+
+```js
+var node = new SourceNode(1, 2, "a.js", [
+  new SourceNode(3, 4, "b.js", "uno"),
+  "dos",
+  [
+    "tres",
+    new SourceNode(5, 6, "c.js", "quatro")
+  ]
+]);
+
+node.toStringWithSourceMap({ file: "my-output-file.js" })
+// { code: 'unodostresquatro',
+//   map: [object SourceMapGenerator] }
+```
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/array-set.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/array-set.js
new file mode 100644
index 00000000..fbd5c81c
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/array-set.js
@@ -0,0 +1,121 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var util = require('./util');
+var has = Object.prototype.hasOwnProperty;
+var hasNativeMap = typeof Map !== "undefined";
+
+/**
+ * A data structure which is a combination of an array and a set. Adding a new
+ * member is O(1), testing for membership is O(1), and finding the index of an
+ * element is O(1). Removing elements from the set is not supported. Only
+ * strings are supported for membership.
+ */
+function ArraySet() {
+  this._array = [];
+  this._set = hasNativeMap ? new Map() : Object.create(null);
+}
+
+/**
+ * Static method for creating ArraySet instances from an existing array.
+ */
+ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
+  var set = new ArraySet();
+  for (var i = 0, len = aArray.length; i < len; i++) {
+    set.add(aArray[i], aAllowDuplicates);
+  }
+  return set;
+};
+
+/**
+ * Return how many unique items are in this ArraySet. If duplicates have been
+ * added, than those do not count towards the size.
+ *
+ * @returns Number
+ */
+ArraySet.prototype.size = function ArraySet_size() {
+  return hasNativeMap ? this._set.size : Object.getOwnPropertyNames(this._set).length;
+};
+
+/**
+ * Add the given string to this set.
+ *
+ * @param String aStr
+ */
+ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
+  var sStr = hasNativeMap ? aStr : util.toSetString(aStr);
+  var isDuplicate = hasNativeMap ? this.has(aStr) : has.call(this._set, sStr);
+  var idx = this._array.length;
+  if (!isDuplicate || aAllowDuplicates) {
+    this._array.push(aStr);
+  }
+  if (!isDuplicate) {
+    if (hasNativeMap) {
+      this._set.set(aStr, idx);
+    } else {
+      this._set[sStr] = idx;
+    }
+  }
+};
+
+/**
+ * Is the given string a member of this set?
+ *
+ * @param String aStr
+ */
+ArraySet.prototype.has = function ArraySet_has(aStr) {
+  if (hasNativeMap) {
+    return this._set.has(aStr);
+  } else {
+    var sStr = util.toSetString(aStr);
+    return has.call(this._set, sStr);
+  }
+};
+
+/**
+ * What is the index of the given string in the array?
+ *
+ * @param String aStr
+ */
+ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
+  if (hasNativeMap) {
+    var idx = this._set.get(aStr);
+    if (idx >= 0) {
+        return idx;
+    }
+  } else {
+    var sStr = util.toSetString(aStr);
+    if (has.call(this._set, sStr)) {
+      return this._set[sStr];
+    }
+  }
+
+  throw new Error('"' + aStr + '" is not in the set.');
+};
+
+/**
+ * What is the element at the given index?
+ *
+ * @param Number aIdx
+ */
+ArraySet.prototype.at = function ArraySet_at(aIdx) {
+  if (aIdx >= 0 && aIdx < this._array.length) {
+    return this._array[aIdx];
+  }
+  throw new Error('No element indexed by ' + aIdx);
+};
+
+/**
+ * Returns the array representation of this set (which has the proper indices
+ * indicated by indexOf). Note that this is a copy of the internal array used
+ * for storing the members so that no one can mess with internal state.
+ */
+ArraySet.prototype.toArray = function ArraySet_toArray() {
+  return this._array.slice();
+};
+
+exports.ArraySet = ArraySet;
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64-vlq.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64-vlq.js
new file mode 100644
index 00000000..612b4040
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64-vlq.js
@@ -0,0 +1,140 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ *
+ * Based on the Base 64 VLQ implementation in Closure Compiler:
+ * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
+ *
+ * Copyright 2011 The Closure Compiler Authors. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution.
+ *  * Neither the name of Google Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+var base64 = require('./base64');
+
+// A single base 64 digit can contain 6 bits of data. For the base 64 variable
+// length quantities we use in the source map spec, the first bit is the sign,
+// the next four bits are the actual value, and the 6th bit is the
+// continuation bit. The continuation bit tells us whether there are more
+// digits in this value following this digit.
+//
+//   Continuation
+//   |    Sign
+//   |    |
+//   V    V
+//   101011
+
+var VLQ_BASE_SHIFT = 5;
+
+// binary: 100000
+var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
+
+// binary: 011111
+var VLQ_BASE_MASK = VLQ_BASE - 1;
+
+// binary: 100000
+var VLQ_CONTINUATION_BIT = VLQ_BASE;
+
+/**
+ * Converts from a two-complement value to a value where the sign bit is
+ * placed in the least significant bit.  For example, as decimals:
+ *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
+ *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
+ */
+function toVLQSigned(aValue) {
+  return aValue < 0
+    ? ((-aValue) << 1) + 1
+    : (aValue << 1) + 0;
+}
+
+/**
+ * Converts to a two-complement value from a value where the sign bit is
+ * placed in the least significant bit.  For example, as decimals:
+ *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
+ *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
+ */
+function fromVLQSigned(aValue) {
+  var isNegative = (aValue & 1) === 1;
+  var shifted = aValue >> 1;
+  return isNegative
+    ? -shifted
+    : shifted;
+}
+
+/**
+ * Returns the base 64 VLQ encoded value.
+ */
+exports.encode = function base64VLQ_encode(aValue) {
+  var encoded = "";
+  var digit;
+
+  var vlq = toVLQSigned(aValue);
+
+  do {
+    digit = vlq & VLQ_BASE_MASK;
+    vlq >>>= VLQ_BASE_SHIFT;
+    if (vlq > 0) {
+      // There are still more digits in this value, so we must make sure the
+      // continuation bit is marked.
+      digit |= VLQ_CONTINUATION_BIT;
+    }
+    encoded += base64.encode(digit);
+  } while (vlq > 0);
+
+  return encoded;
+};
+
+/**
+ * Decodes the next base 64 VLQ value from the given string and returns the
+ * value and the rest of the string via the out parameter.
+ */
+exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
+  var strLen = aStr.length;
+  var result = 0;
+  var shift = 0;
+  var continuation, digit;
+
+  do {
+    if (aIndex >= strLen) {
+      throw new Error("Expected more digits in base 64 VLQ value.");
+    }
+
+    digit = base64.decode(aStr.charCodeAt(aIndex++));
+    if (digit === -1) {
+      throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
+    }
+
+    continuation = !!(digit & VLQ_CONTINUATION_BIT);
+    digit &= VLQ_BASE_MASK;
+    result = result + (digit << shift);
+    shift += VLQ_BASE_SHIFT;
+  } while (continuation);
+
+  aOutParam.value = fromVLQSigned(result);
+  aOutParam.rest = aIndex;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64.js
new file mode 100644
index 00000000..8aa86b30
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/base64.js
@@ -0,0 +1,67 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');
+
+/**
+ * Encode an integer in the range of 0 to 63 to a single base 64 digit.
+ */
+exports.encode = function (number) {
+  if (0 <= number && number < intToCharMap.length) {
+    return intToCharMap[number];
+  }
+  throw new TypeError("Must be between 0 and 63: " + number);
+};
+
+/**
+ * Decode a single base 64 character code digit to an integer. Returns -1 on
+ * failure.
+ */
+exports.decode = function (charCode) {
+  var bigA = 65;     // 'A'
+  var bigZ = 90;     // 'Z'
+
+  var littleA = 97;  // 'a'
+  var littleZ = 122; // 'z'
+
+  var zero = 48;     // '0'
+  var nine = 57;     // '9'
+
+  var plus = 43;     // '+'
+  var slash = 47;    // '/'
+
+  var littleOffset = 26;
+  var numberOffset = 52;
+
+  // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
+  if (bigA <= charCode && charCode <= bigZ) {
+    return (charCode - bigA);
+  }
+
+  // 26 - 51: abcdefghijklmnopqrstuvwxyz
+  if (littleA <= charCode && charCode <= littleZ) {
+    return (charCode - littleA + littleOffset);
+  }
+
+  // 52 - 61: 0123456789
+  if (zero <= charCode && charCode <= nine) {
+    return (charCode - zero + numberOffset);
+  }
+
+  // 62: +
+  if (charCode == plus) {
+    return 62;
+  }
+
+  // 63: /
+  if (charCode == slash) {
+    return 63;
+  }
+
+  // Invalid base64 digit.
+  return -1;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/binary-search.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/binary-search.js
new file mode 100644
index 00000000..010ac941
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/binary-search.js
@@ -0,0 +1,111 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+exports.GREATEST_LOWER_BOUND = 1;
+exports.LEAST_UPPER_BOUND = 2;
+
+/**
+ * Recursive implementation of binary search.
+ *
+ * @param aLow Indices here and lower do not contain the needle.
+ * @param aHigh Indices here and higher do not contain the needle.
+ * @param aNeedle The element being searched for.
+ * @param aHaystack The non-empty array being searched.
+ * @param aCompare Function which takes two elements and returns -1, 0, or 1.
+ * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
+ *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
+ *     closest element that is smaller than or greater than the one we are
+ *     searching for, respectively, if the exact element cannot be found.
+ */
+function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
+  // This function terminates when one of the following is true:
+  //
+  //   1. We find the exact element we are looking for.
+  //
+  //   2. We did not find the exact element, but we can return the index of
+  //      the next-closest element.
+  //
+  //   3. We did not find the exact element, and there is no next-closest
+  //      element than the one we are searching for, so we return -1.
+  var mid = Math.floor((aHigh - aLow) / 2) + aLow;
+  var cmp = aCompare(aNeedle, aHaystack[mid], true);
+  if (cmp === 0) {
+    // Found the element we are looking for.
+    return mid;
+  }
+  else if (cmp > 0) {
+    // Our needle is greater than aHaystack[mid].
+    if (aHigh - mid > 1) {
+      // The element is in the upper half.
+      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
+    }
+
+    // The exact needle element was not found in this haystack. Determine if
+    // we are in termination case (3) or (2) and return the appropriate thing.
+    if (aBias == exports.LEAST_UPPER_BOUND) {
+      return aHigh < aHaystack.length ? aHigh : -1;
+    } else {
+      return mid;
+    }
+  }
+  else {
+    // Our needle is less than aHaystack[mid].
+    if (mid - aLow > 1) {
+      // The element is in the lower half.
+      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
+    }
+
+    // we are in termination case (3) or (2) and return the appropriate thing.
+    if (aBias == exports.LEAST_UPPER_BOUND) {
+      return mid;
+    } else {
+      return aLow < 0 ? -1 : aLow;
+    }
+  }
+}
+
+/**
+ * This is an implementation of binary search which will always try and return
+ * the index of the closest element if there is no exact hit. This is because
+ * mappings between original and generated line/col pairs are single points,
+ * and there is an implicit region between each of them, so a miss just means
+ * that you aren't on the very start of a region.
+ *
+ * @param aNeedle The element you are looking for.
+ * @param aHaystack The array that is being searched.
+ * @param aCompare A function which takes the needle and an element in the
+ *     array and returns -1, 0, or 1 depending on whether the needle is less
+ *     than, equal to, or greater than the element, respectively.
+ * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
+ *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
+ *     closest element that is smaller than or greater than the one we are
+ *     searching for, respectively, if the exact element cannot be found.
+ *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
+ */
+exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
+  if (aHaystack.length === 0) {
+    return -1;
+  }
+
+  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
+                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);
+  if (index < 0) {
+    return -1;
+  }
+
+  // We have found either the exact element, or the next-closest element than
+  // the one we are searching for. However, there may be more than one such
+  // element. Make sure we always return the smallest of these.
+  while (index - 1 >= 0) {
+    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
+      break;
+    }
+    --index;
+  }
+
+  return index;
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/mapping-list.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/mapping-list.js
new file mode 100644
index 00000000..06d1274a
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/mapping-list.js
@@ -0,0 +1,79 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2014 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var util = require('./util');
+
+/**
+ * Determine whether mappingB is after mappingA with respect to generated
+ * position.
+ */
+function generatedPositionAfter(mappingA, mappingB) {
+  // Optimized for most common case
+  var lineA = mappingA.generatedLine;
+  var lineB = mappingB.generatedLine;
+  var columnA = mappingA.generatedColumn;
+  var columnB = mappingB.generatedColumn;
+  return lineB > lineA || lineB == lineA && columnB >= columnA ||
+         util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
+}
+
+/**
+ * A data structure to provide a sorted view of accumulated mappings in a
+ * performance conscious manner. It trades a neglibable overhead in general
+ * case for a large speedup in case of mappings being added in order.
+ */
+function MappingList() {
+  this._array = [];
+  this._sorted = true;
+  // Serves as infimum
+  this._last = {generatedLine: -1, generatedColumn: 0};
+}
+
+/**
+ * Iterate through internal items. This method takes the same arguments that
+ * `Array.prototype.forEach` takes.
+ *
+ * NOTE: The order of the mappings is NOT guaranteed.
+ */
+MappingList.prototype.unsortedForEach =
+  function MappingList_forEach(aCallback, aThisArg) {
+    this._array.forEach(aCallback, aThisArg);
+  };
+
+/**
+ * Add the given source mapping.
+ *
+ * @param Object aMapping
+ */
+MappingList.prototype.add = function MappingList_add(aMapping) {
+  if (generatedPositionAfter(this._last, aMapping)) {
+    this._last = aMapping;
+    this._array.push(aMapping);
+  } else {
+    this._sorted = false;
+    this._array.push(aMapping);
+  }
+};
+
+/**
+ * Returns the flat, sorted array of mappings. The mappings are sorted by
+ * generated position.
+ *
+ * WARNING: This method returns internal data without copying, for
+ * performance. The return value must NOT be mutated, and should be treated as
+ * an immutable borrow. If you want to take ownership, you must make your own
+ * copy.
+ */
+MappingList.prototype.toArray = function MappingList_toArray() {
+  if (!this._sorted) {
+    this._array.sort(util.compareByGeneratedPositionsInflated);
+    this._sorted = true;
+  }
+  return this._array;
+};
+
+exports.MappingList = MappingList;
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/quick-sort.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/quick-sort.js
new file mode 100644
index 00000000..23f9eda5
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/quick-sort.js
@@ -0,0 +1,132 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+// It turns out that some (most?) JavaScript engines don't self-host
+// `Array.prototype.sort`. This makes sense because C++ will likely remain
+// faster than JS when doing raw CPU-intensive sorting. However, when using a
+// custom comparator function, calling back and forth between the VM's C++ and
+// JIT'd JS is rather slow *and* loses JIT type information, resulting in
+// worse generated code for the comparator function than would be optimal. In
+// fact, when sorting with a comparator, these costs outweigh the benefits of
+// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
+// a ~3500ms mean speed-up in `bench/bench.html`.
+
+function SortTemplate(comparator) {
+
+/**
+ * Swap the elements indexed by `x` and `y` in the array `ary`.
+ *
+ * @param {Array} ary
+ *        The array.
+ * @param {Number} x
+ *        The index of the first item.
+ * @param {Number} y
+ *        The index of the second item.
+ */
+function swap(ary, x, y) {
+  var temp = ary[x];
+  ary[x] = ary[y];
+  ary[y] = temp;
+}
+
+/**
+ * Returns a random integer within the range `low .. high` inclusive.
+ *
+ * @param {Number} low
+ *        The lower bound on the range.
+ * @param {Number} high
+ *        The upper bound on the range.
+ */
+function randomIntInRange(low, high) {
+  return Math.round(low + (Math.random() * (high - low)));
+}
+
+/**
+ * The Quick Sort algorithm.
+ *
+ * @param {Array} ary
+ *        An array to sort.
+ * @param {function} comparator
+ *        Function to use to compare two items.
+ * @param {Number} p
+ *        Start index of the array
+ * @param {Number} r
+ *        End index of the array
+ */
+function doQuickSort(ary, comparator, p, r) {
+  // If our lower bound is less than our upper bound, we (1) partition the
+  // array into two pieces and (2) recurse on each half. If it is not, this is
+  // the empty array and our base case.
+
+  if (p < r) {
+    // (1) Partitioning.
+    //
+    // The partitioning chooses a pivot between `p` and `r` and moves all
+    // elements that are less than or equal to the pivot to the before it, and
+    // all the elements that are greater than it after it. The effect is that
+    // once partition is done, the pivot is in the exact place it will be when
+    // the array is put in sorted order, and it will not need to be moved
+    // again. This runs in O(n) time.
+
+    // Always choose a random pivot so that an input array which is reverse
+    // sorted does not cause O(n^2) running time.
+    var pivotIndex = randomIntInRange(p, r);
+    var i = p - 1;
+
+    swap(ary, pivotIndex, r);
+    var pivot = ary[r];
+
+    // Immediately after `j` is incremented in this loop, the following hold
+    // true:
+    //
+    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
+    //
+    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
+    for (var j = p; j < r; j++) {
+      if (comparator(ary[j], pivot, false) <= 0) {
+        i += 1;
+        swap(ary, i, j);
+      }
+    }
+
+    swap(ary, i + 1, j);
+    var q = i + 1;
+
+    // (2) Recurse on each half.
+
+    doQuickSort(ary, comparator, p, q - 1);
+    doQuickSort(ary, comparator, q + 1, r);
+  }
+}
+
+  return doQuickSort;
+}
+
+function cloneSort(comparator) {
+  let template = SortTemplate.toString();
+  let templateFn = new Function(`return ${template}`)();
+  return templateFn(comparator);
+}
+
+/**
+ * Sort the given array in-place with the given comparator function.
+ *
+ * @param {Array} ary
+ *        An array to sort.
+ * @param {function} comparator
+ *        Function to use to compare two items.
+ */
+
+let sortCache = new WeakMap();
+exports.quickSort = function (ary, comparator, start = 0) {
+  let doQuickSort = sortCache.get(comparator);
+  if (doQuickSort === void 0) {
+    doQuickSort = cloneSort(comparator);
+    sortCache.set(comparator, doQuickSort);
+  }
+  doQuickSort(ary, comparator, start, ary.length - 1);
+};
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-consumer.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-consumer.js
new file mode 100644
index 00000000..db0a5324
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-consumer.js
@@ -0,0 +1,1184 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var util = require('./util');
+var binarySearch = require('./binary-search');
+var ArraySet = require('./array-set').ArraySet;
+var base64VLQ = require('./base64-vlq');
+var quickSort = require('./quick-sort').quickSort;
+
+function SourceMapConsumer(aSourceMap, aSourceMapURL) {
+  var sourceMap = aSourceMap;
+  if (typeof aSourceMap === 'string') {
+    sourceMap = util.parseSourceMapInput(aSourceMap);
+  }
+
+  return sourceMap.sections != null
+    ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL)
+    : new BasicSourceMapConsumer(sourceMap, aSourceMapURL);
+}
+
+SourceMapConsumer.fromSourceMap = function(aSourceMap, aSourceMapURL) {
+  return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL);
+}
+
+/**
+ * The version of the source mapping spec that we are consuming.
+ */
+SourceMapConsumer.prototype._version = 3;
+
+// `__generatedMappings` and `__originalMappings` are arrays that hold the
+// parsed mapping coordinates from the source map's "mappings" attribute. They
+// are lazily instantiated, accessed via the `_generatedMappings` and
+// `_originalMappings` getters respectively, and we only parse the mappings
+// and create these arrays once queried for a source location. We jump through
+// these hoops because there can be many thousands of mappings, and parsing
+// them is expensive, so we only want to do it if we must.
+//
+// Each object in the arrays is of the form:
+//
+//     {
+//       generatedLine: The line number in the generated code,
+//       generatedColumn: The column number in the generated code,
+//       source: The path to the original source file that generated this
+//               chunk of code,
+//       originalLine: The line number in the original source that
+//                     corresponds to this chunk of generated code,
+//       originalColumn: The column number in the original source that
+//                       corresponds to this chunk of generated code,
+//       name: The name of the original symbol which generated this chunk of
+//             code.
+//     }
+//
+// All properties except for `generatedLine` and `generatedColumn` can be
+// `null`.
+//
+// `_generatedMappings` is ordered by the generated positions.
+//
+// `_originalMappings` is ordered by the original positions.
+
+SourceMapConsumer.prototype.__generatedMappings = null;
+Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
+  configurable: true,
+  enumerable: true,
+  get: function () {
+    if (!this.__generatedMappings) {
+      this._parseMappings(this._mappings, this.sourceRoot);
+    }
+
+    return this.__generatedMappings;
+  }
+});
+
+SourceMapConsumer.prototype.__originalMappings = null;
+Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
+  configurable: true,
+  enumerable: true,
+  get: function () {
+    if (!this.__originalMappings) {
+      this._parseMappings(this._mappings, this.sourceRoot);
+    }
+
+    return this.__originalMappings;
+  }
+});
+
+SourceMapConsumer.prototype._charIsMappingSeparator =
+  function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
+    var c = aStr.charAt(index);
+    return c === ";" || c === ",";
+  };
+
+/**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+SourceMapConsumer.prototype._parseMappings =
+  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+    throw new Error("Subclasses must implement _parseMappings");
+  };
+
+SourceMapConsumer.GENERATED_ORDER = 1;
+SourceMapConsumer.ORIGINAL_ORDER = 2;
+
+SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
+SourceMapConsumer.LEAST_UPPER_BOUND = 2;
+
+/**
+ * Iterate over each mapping between an original source/line/column and a
+ * generated line/column in this source map.
+ *
+ * @param Function aCallback
+ *        The function that is called with each mapping.
+ * @param Object aContext
+ *        Optional. If specified, this object will be the value of `this` every
+ *        time that `aCallback` is called.
+ * @param aOrder
+ *        Either `SourceMapConsumer.GENERATED_ORDER` or
+ *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
+ *        iterate over the mappings sorted by the generated file's line/column
+ *        order or the original's source/line/column order, respectively. Defaults to
+ *        `SourceMapConsumer.GENERATED_ORDER`.
+ */
+SourceMapConsumer.prototype.eachMapping =
+  function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
+    var context = aContext || null;
+    var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
+
+    var mappings;
+    switch (order) {
+    case SourceMapConsumer.GENERATED_ORDER:
+      mappings = this._generatedMappings;
+      break;
+    case SourceMapConsumer.ORIGINAL_ORDER:
+      mappings = this._originalMappings;
+      break;
+    default:
+      throw new Error("Unknown order of iteration.");
+    }
+
+    var sourceRoot = this.sourceRoot;
+    var boundCallback = aCallback.bind(context);
+    var names = this._names;
+    var sources = this._sources;
+    var sourceMapURL = this._sourceMapURL;
+
+    for (var i = 0, n = mappings.length; i < n; i++) {
+      var mapping = mappings[i];
+      var source = mapping.source === null ? null : sources.at(mapping.source);
+      source = util.computeSourceURL(sourceRoot, source, sourceMapURL);
+      boundCallback({
+        source: source,
+        generatedLine: mapping.generatedLine,
+        generatedColumn: mapping.generatedColumn,
+        originalLine: mapping.originalLine,
+        originalColumn: mapping.originalColumn,
+        name: mapping.name === null ? null : names.at(mapping.name)
+      });
+    }
+  };
+
+/**
+ * Returns all generated line and column information for the original source,
+ * line, and column provided. If no column is provided, returns all mappings
+ * corresponding to a either the line we are searching for or the next
+ * closest line that has any mappings. Otherwise, returns all mappings
+ * corresponding to the given line and either the column we are searching for
+ * or the next closest column that has any offsets.
+ *
+ * The only argument is an object with the following properties:
+ *
+ *   - source: The filename of the original source.
+ *   - line: The line number in the original source.  The line number is 1-based.
+ *   - column: Optional. the column number in the original source.
+ *    The column number is 0-based.
+ *
+ * and an array of objects is returned, each with the following properties:
+ *
+ *   - line: The line number in the generated source, or null.  The
+ *    line number is 1-based.
+ *   - column: The column number in the generated source, or null.
+ *    The column number is 0-based.
+ */
+SourceMapConsumer.prototype.allGeneratedPositionsFor =
+  function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
+    var line = util.getArg(aArgs, 'line');
+
+    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
+    // returns the index of the closest mapping less than the needle. By
+    // setting needle.originalColumn to 0, we thus find the last mapping for
+    // the given line, provided such a mapping exists.
+    var needle = {
+      source: util.getArg(aArgs, 'source'),
+      originalLine: line,
+      originalColumn: util.getArg(aArgs, 'column', 0)
+    };
+
+    needle.source = this._findSourceIndex(needle.source);
+    if (needle.source < 0) {
+      return [];
+    }
+
+    var mappings = [];
+
+    var index = this._findMapping(needle,
+                                  this._originalMappings,
+                                  "originalLine",
+                                  "originalColumn",
+                                  util.compareByOriginalPositions,
+                                  binarySearch.LEAST_UPPER_BOUND);
+    if (index >= 0) {
+      var mapping = this._originalMappings[index];
+
+      if (aArgs.column === undefined) {
+        var originalLine = mapping.originalLine;
+
+        // Iterate until either we run out of mappings, or we run into
+        // a mapping for a different line than the one we found. Since
+        // mappings are sorted, this is guaranteed to find all mappings for
+        // the line we found.
+        while (mapping && mapping.originalLine === originalLine) {
+          mappings.push({
+            line: util.getArg(mapping, 'generatedLine', null),
+            column: util.getArg(mapping, 'generatedColumn', null),
+            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
+          });
+
+          mapping = this._originalMappings[++index];
+        }
+      } else {
+        var originalColumn = mapping.originalColumn;
+
+        // Iterate until either we run out of mappings, or we run into
+        // a mapping for a different line than the one we were searching for.
+        // Since mappings are sorted, this is guaranteed to find all mappings for
+        // the line we are searching for.
+        while (mapping &&
+               mapping.originalLine === line &&
+               mapping.originalColumn == originalColumn) {
+          mappings.push({
+            line: util.getArg(mapping, 'generatedLine', null),
+            column: util.getArg(mapping, 'generatedColumn', null),
+            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
+          });
+
+          mapping = this._originalMappings[++index];
+        }
+      }
+    }
+
+    return mappings;
+  };
+
+exports.SourceMapConsumer = SourceMapConsumer;
+
+/**
+ * A BasicSourceMapConsumer instance represents a parsed source map which we can
+ * query for information about the original file positions by giving it a file
+ * position in the generated source.
+ *
+ * The first parameter is the raw source map (either as a JSON string, or
+ * already parsed to an object). According to the spec, source maps have the
+ * following attributes:
+ *
+ *   - version: Which version of the source map spec this map is following.
+ *   - sources: An array of URLs to the original source files.
+ *   - names: An array of identifiers which can be referrenced by individual mappings.
+ *   - sourceRoot: Optional. The URL root from which all sources are relative.
+ *   - sourcesContent: Optional. An array of contents of the original source files.
+ *   - mappings: A string of base64 VLQs which contain the actual mappings.
+ *   - file: Optional. The generated file this source map is associated with.
+ *
+ * Here is an example source map, taken from the source map spec[0]:
+ *
+ *     {
+ *       version : 3,
+ *       file: "out.js",
+ *       sourceRoot : "",
+ *       sources: ["foo.js", "bar.js"],
+ *       names: ["src", "maps", "are", "fun"],
+ *       mappings: "AA,AB;;ABCDE;"
+ *     }
+ *
+ * The second parameter, if given, is a string whose value is the URL
+ * at which the source map was found.  This URL is used to compute the
+ * sources array.
+ *
+ * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
+ */
+function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) {
+  var sourceMap = aSourceMap;
+  if (typeof aSourceMap === 'string') {
+    sourceMap = util.parseSourceMapInput(aSourceMap);
+  }
+
+  var version = util.getArg(sourceMap, 'version');
+  var sources = util.getArg(sourceMap, 'sources');
+  // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
+  // requires the array) to play nice here.
+  var names = util.getArg(sourceMap, 'names', []);
+  var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
+  var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
+  var mappings = util.getArg(sourceMap, 'mappings');
+  var file = util.getArg(sourceMap, 'file', null);
+
+  // Once again, Sass deviates from the spec and supplies the version as a
+  // string rather than a number, so we use loose equality checking here.
+  if (version != this._version) {
+    throw new Error('Unsupported version: ' + version);
+  }
+
+  if (sourceRoot) {
+    sourceRoot = util.normalize(sourceRoot);
+  }
+
+  sources = sources
+    .map(String)
+    // Some source maps produce relative source paths like "./foo.js" instead of
+    // "foo.js".  Normalize these first so that future comparisons will succeed.
+    // See bugzil.la/1090768.
+    .map(util.normalize)
+    // Always ensure that absolute sources are internally stored relative to
+    // the source root, if the source root is absolute. Not doing this would
+    // be particularly problematic when the source root is a prefix of the
+    // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
+    .map(function (source) {
+      return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source)
+        ? util.relative(sourceRoot, source)
+        : source;
+    });
+
+  // Pass `true` below to allow duplicate names and sources. While source maps
+  // are intended to be compressed and deduplicated, the TypeScript compiler
+  // sometimes generates source maps with duplicates in them. See Github issue
+  // #72 and bugzil.la/889492.
+  this._names = ArraySet.fromArray(names.map(String), true);
+  this._sources = ArraySet.fromArray(sources, true);
+
+  this._absoluteSources = this._sources.toArray().map(function (s) {
+    return util.computeSourceURL(sourceRoot, s, aSourceMapURL);
+  });
+
+  this.sourceRoot = sourceRoot;
+  this.sourcesContent = sourcesContent;
+  this._mappings = mappings;
+  this._sourceMapURL = aSourceMapURL;
+  this.file = file;
+}
+
+BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
+BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;
+
+/**
+ * Utility function to find the index of a source.  Returns -1 if not
+ * found.
+ */
+BasicSourceMapConsumer.prototype._findSourceIndex = function(aSource) {
+  var relativeSource = aSource;
+  if (this.sourceRoot != null) {
+    relativeSource = util.relative(this.sourceRoot, relativeSource);
+  }
+
+  if (this._sources.has(relativeSource)) {
+    return this._sources.indexOf(relativeSource);
+  }
+
+  // Maybe aSource is an absolute URL as returned by |sources|.  In
+  // this case we can't simply undo the transform.
+  var i;
+  for (i = 0; i < this._absoluteSources.length; ++i) {
+    if (this._absoluteSources[i] == aSource) {
+      return i;
+    }
+  }
+
+  return -1;
+};
+
+/**
+ * Create a BasicSourceMapConsumer from a SourceMapGenerator.
+ *
+ * @param SourceMapGenerator aSourceMap
+ *        The source map that will be consumed.
+ * @param String aSourceMapURL
+ *        The URL at which the source map can be found (optional)
+ * @returns BasicSourceMapConsumer
+ */
+BasicSourceMapConsumer.fromSourceMap =
+  function SourceMapConsumer_fromSourceMap(aSourceMap, aSourceMapURL) {
+    var smc = Object.create(BasicSourceMapConsumer.prototype);
+
+    var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
+    var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
+    smc.sourceRoot = aSourceMap._sourceRoot;
+    smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
+                                                            smc.sourceRoot);
+    smc.file = aSourceMap._file;
+    smc._sourceMapURL = aSourceMapURL;
+    smc._absoluteSources = smc._sources.toArray().map(function (s) {
+      return util.computeSourceURL(smc.sourceRoot, s, aSourceMapURL);
+    });
+
+    // Because we are modifying the entries (by converting string sources and
+    // names to indices into the sources and names ArraySets), we have to make
+    // a copy of the entry or else bad things happen. Shared mutable state
+    // strikes again! See github issue #191.
+
+    var generatedMappings = aSourceMap._mappings.toArray().slice();
+    var destGeneratedMappings = smc.__generatedMappings = [];
+    var destOriginalMappings = smc.__originalMappings = [];
+
+    for (var i = 0, length = generatedMappings.length; i < length; i++) {
+      var srcMapping = generatedMappings[i];
+      var destMapping = new Mapping;
+      destMapping.generatedLine = srcMapping.generatedLine;
+      destMapping.generatedColumn = srcMapping.generatedColumn;
+
+      if (srcMapping.source) {
+        destMapping.source = sources.indexOf(srcMapping.source);
+        destMapping.originalLine = srcMapping.originalLine;
+        destMapping.originalColumn = srcMapping.originalColumn;
+
+        if (srcMapping.name) {
+          destMapping.name = names.indexOf(srcMapping.name);
+        }
+
+        destOriginalMappings.push(destMapping);
+      }
+
+      destGeneratedMappings.push(destMapping);
+    }
+
+    quickSort(smc.__originalMappings, util.compareByOriginalPositions);
+
+    return smc;
+  };
+
+/**
+ * The version of the source mapping spec that we are consuming.
+ */
+BasicSourceMapConsumer.prototype._version = 3;
+
+/**
+ * The list of original sources.
+ */
+Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
+  get: function () {
+    return this._absoluteSources.slice();
+  }
+});
+
+/**
+ * Provide the JIT with a nice shape / hidden class.
+ */
+function Mapping() {
+  this.generatedLine = 0;
+  this.generatedColumn = 0;
+  this.source = null;
+  this.originalLine = null;
+  this.originalColumn = null;
+  this.name = null;
+}
+
+/**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+
+const compareGenerated = util.compareByGeneratedPositionsDeflatedNoLine;
+function sortGenerated(array, start) {
+  let l = array.length;
+  let n = array.length - start;
+  if (n <= 1) {
+    return;
+  } else if (n == 2) {
+    let a = array[start];
+    let b = array[start + 1];
+    if (compareGenerated(a, b) > 0) {
+      array[start] = b;
+      array[start + 1] = a;
+    }
+  } else if (n < 20) {
+    for (let i = start; i < l; i++) {
+      for (let j = i; j > start; j--) {
+        let a = array[j - 1];
+        let b = array[j];
+        if (compareGenerated(a, b) <= 0) {
+          break;
+        }
+        array[j - 1] = b;
+        array[j] = a;
+      }
+    }
+  } else {
+    quickSort(array, compareGenerated, start);
+  }
+}
+BasicSourceMapConsumer.prototype._parseMappings =
+  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+    var generatedLine = 1;
+    var previousGeneratedColumn = 0;
+    var previousOriginalLine = 0;
+    var previousOriginalColumn = 0;
+    var previousSource = 0;
+    var previousName = 0;
+    var length = aStr.length;
+    var index = 0;
+    var cachedSegments = {};
+    var temp = {};
+    var originalMappings = [];
+    var generatedMappings = [];
+    var mapping, str, segment, end, value;
+
+    let subarrayStart = 0;
+    while (index < length) {
+      if (aStr.charAt(index) === ';') {
+        generatedLine++;
+        index++;
+        previousGeneratedColumn = 0;
+
+        sortGenerated(generatedMappings, subarrayStart);
+        subarrayStart = generatedMappings.length;
+      }
+      else if (aStr.charAt(index) === ',') {
+        index++;
+      }
+      else {
+        mapping = new Mapping();
+        mapping.generatedLine = generatedLine;
+
+        for (end = index; end < length; end++) {
+          if (this._charIsMappingSeparator(aStr, end)) {
+            break;
+          }
+        }
+        str = aStr.slice(index, end);
+
+        segment = [];
+        while (index < end) {
+          base64VLQ.decode(aStr, index, temp);
+          value = temp.value;
+          index = temp.rest;
+          segment.push(value);
+        }
+
+        if (segment.length === 2) {
+          throw new Error('Found a source, but no line and column');
+        }
+
+        if (segment.length === 3) {
+          throw new Error('Found a source and line, but no column');
+        }
+
+        // Generated column.
+        mapping.generatedColumn = previousGeneratedColumn + segment[0];
+        previousGeneratedColumn = mapping.generatedColumn;
+
+        if (segment.length > 1) {
+          // Original source.
+          mapping.source = previousSource + segment[1];
+          previousSource += segment[1];
+
+          // Original line.
+          mapping.originalLine = previousOriginalLine + segment[2];
+          previousOriginalLine = mapping.originalLine;
+          // Lines are stored 0-based
+          mapping.originalLine += 1;
+
+          // Original column.
+          mapping.originalColumn = previousOriginalColumn + segment[3];
+          previousOriginalColumn = mapping.originalColumn;
+
+          if (segment.length > 4) {
+            // Original name.
+            mapping.name = previousName + segment[4];
+            previousName += segment[4];
+          }
+        }
+
+        generatedMappings.push(mapping);
+        if (typeof mapping.originalLine === 'number') {
+          let currentSource = mapping.source;
+          while (originalMappings.length <= currentSource) {
+            originalMappings.push(null);
+          }
+          if (originalMappings[currentSource] === null) {
+            originalMappings[currentSource] = [];
+          }
+          originalMappings[currentSource].push(mapping);
+        }
+      }
+    }
+
+    sortGenerated(generatedMappings, subarrayStart);
+    this.__generatedMappings = generatedMappings;
+
+    for (var i = 0; i < originalMappings.length; i++) {
+      if (originalMappings[i] != null) {
+        quickSort(originalMappings[i], util.compareByOriginalPositionsNoSource);
+      }
+    }
+    this.__originalMappings = [].concat(...originalMappings);
+  };
+
+/**
+ * Find the mapping that best matches the hypothetical "needle" mapping that
+ * we are searching for in the given "haystack" of mappings.
+ */
+BasicSourceMapConsumer.prototype._findMapping =
+  function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
+                                         aColumnName, aComparator, aBias) {
+    // To return the position we are searching for, we must first find the
+    // mapping for the given position and then return the opposite position it
+    // points to. Because the mappings are sorted, we can use binary search to
+    // find the best mapping.
+
+    if (aNeedle[aLineName] <= 0) {
+      throw new TypeError('Line must be greater than or equal to 1, got '
+                          + aNeedle[aLineName]);
+    }
+    if (aNeedle[aColumnName] < 0) {
+      throw new TypeError('Column must be greater than or equal to 0, got '
+                          + aNeedle[aColumnName]);
+    }
+
+    return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
+  };
+
+/**
+ * Compute the last column for each generated mapping. The last column is
+ * inclusive.
+ */
+BasicSourceMapConsumer.prototype.computeColumnSpans =
+  function SourceMapConsumer_computeColumnSpans() {
+    for (var index = 0; index < this._generatedMappings.length; ++index) {
+      var mapping = this._generatedMappings[index];
+
+      // Mappings do not contain a field for the last generated columnt. We
+      // can come up with an optimistic estimate, however, by assuming that
+      // mappings are contiguous (i.e. given two consecutive mappings, the
+      // first mapping ends where the second one starts).
+      if (index + 1 < this._generatedMappings.length) {
+        var nextMapping = this._generatedMappings[index + 1];
+
+        if (mapping.generatedLine === nextMapping.generatedLine) {
+          mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
+          continue;
+        }
+      }
+
+      // The last mapping for each line spans the entire line.
+      mapping.lastGeneratedColumn = Infinity;
+    }
+  };
+
+/**
+ * Returns the original source, line, and column information for the generated
+ * source's line and column positions provided. The only argument is an object
+ * with the following properties:
+ *
+ *   - line: The line number in the generated source.  The line number
+ *     is 1-based.
+ *   - column: The column number in the generated source.  The column
+ *     number is 0-based.
+ *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
+ *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
+ *     closest element that is smaller than or greater than the one we are
+ *     searching for, respectively, if the exact element cannot be found.
+ *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
+ *
+ * and an object is returned with the following properties:
+ *
+ *   - source: The original source file, or null.
+ *   - line: The line number in the original source, or null.  The
+ *     line number is 1-based.
+ *   - column: The column number in the original source, or null.  The
+ *     column number is 0-based.
+ *   - name: The original identifier, or null.
+ */
+BasicSourceMapConsumer.prototype.originalPositionFor =
+  function SourceMapConsumer_originalPositionFor(aArgs) {
+    var needle = {
+      generatedLine: util.getArg(aArgs, 'line'),
+      generatedColumn: util.getArg(aArgs, 'column')
+    };
+
+    var index = this._findMapping(
+      needle,
+      this._generatedMappings,
+      "generatedLine",
+      "generatedColumn",
+      util.compareByGeneratedPositionsDeflated,
+      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
+    );
+
+    if (index >= 0) {
+      var mapping = this._generatedMappings[index];
+
+      if (mapping.generatedLine === needle.generatedLine) {
+        var source = util.getArg(mapping, 'source', null);
+        if (source !== null) {
+          source = this._sources.at(source);
+          source = util.computeSourceURL(this.sourceRoot, source, this._sourceMapURL);
+        }
+        var name = util.getArg(mapping, 'name', null);
+        if (name !== null) {
+          name = this._names.at(name);
+        }
+        return {
+          source: source,
+          line: util.getArg(mapping, 'originalLine', null),
+          column: util.getArg(mapping, 'originalColumn', null),
+          name: name
+        };
+      }
+    }
+
+    return {
+      source: null,
+      line: null,
+      column: null,
+      name: null
+    };
+  };
+
+/**
+ * Return true if we have the source content for every source in the source
+ * map, false otherwise.
+ */
+BasicSourceMapConsumer.prototype.hasContentsOfAllSources =
+  function BasicSourceMapConsumer_hasContentsOfAllSources() {
+    if (!this.sourcesContent) {
+      return false;
+    }
+    return this.sourcesContent.length >= this._sources.size() &&
+      !this.sourcesContent.some(function (sc) { return sc == null; });
+  };
+
+/**
+ * Returns the original source content. The only argument is the url of the
+ * original source file. Returns null if no original source content is
+ * available.
+ */
+BasicSourceMapConsumer.prototype.sourceContentFor =
+  function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
+    if (!this.sourcesContent) {
+      return null;
+    }
+
+    var index = this._findSourceIndex(aSource);
+    if (index >= 0) {
+      return this.sourcesContent[index];
+    }
+
+    var relativeSource = aSource;
+    if (this.sourceRoot != null) {
+      relativeSource = util.relative(this.sourceRoot, relativeSource);
+    }
+
+    var url;
+    if (this.sourceRoot != null
+        && (url = util.urlParse(this.sourceRoot))) {
+      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
+      // many users. We can help them out when they expect file:// URIs to
+      // behave like it would if they were running a local HTTP server. See
+      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
+      var fileUriAbsPath = relativeSource.replace(/^file:\/\//, "");
+      if (url.scheme == "file"
+          && this._sources.has(fileUriAbsPath)) {
+        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
+      }
+
+      if ((!url.path || url.path == "/")
+          && this._sources.has("/" + relativeSource)) {
+        return this.sourcesContent[this._sources.indexOf("/" + relativeSource)];
+      }
+    }
+
+    // This function is used recursively from
+    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
+    // don't want to throw if we can't find the source - we just want to
+    // return null, so we provide a flag to exit gracefully.
+    if (nullOnMissing) {
+      return null;
+    }
+    else {
+      throw new Error('"' + relativeSource + '" is not in the SourceMap.');
+    }
+  };
+
+/**
+ * Returns the generated line and column information for the original source,
+ * line, and column positions provided. The only argument is an object with
+ * the following properties:
+ *
+ *   - source: The filename of the original source.
+ *   - line: The line number in the original source.  The line number
+ *     is 1-based.
+ *   - column: The column number in the original source.  The column
+ *     number is 0-based.
+ *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
+ *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
+ *     closest element that is smaller than or greater than the one we are
+ *     searching for, respectively, if the exact element cannot be found.
+ *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
+ *
+ * and an object is returned with the following properties:
+ *
+ *   - line: The line number in the generated source, or null.  The
+ *     line number is 1-based.
+ *   - column: The column number in the generated source, or null.
+ *     The column number is 0-based.
+ */
+BasicSourceMapConsumer.prototype.generatedPositionFor =
+  function SourceMapConsumer_generatedPositionFor(aArgs) {
+    var source = util.getArg(aArgs, 'source');
+    source = this._findSourceIndex(source);
+    if (source < 0) {
+      return {
+        line: null,
+        column: null,
+        lastColumn: null
+      };
+    }
+
+    var needle = {
+      source: source,
+      originalLine: util.getArg(aArgs, 'line'),
+      originalColumn: util.getArg(aArgs, 'column')
+    };
+
+    var index = this._findMapping(
+      needle,
+      this._originalMappings,
+      "originalLine",
+      "originalColumn",
+      util.compareByOriginalPositions,
+      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
+    );
+
+    if (index >= 0) {
+      var mapping = this._originalMappings[index];
+
+      if (mapping.source === needle.source) {
+        return {
+          line: util.getArg(mapping, 'generatedLine', null),
+          column: util.getArg(mapping, 'generatedColumn', null),
+          lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
+        };
+      }
+    }
+
+    return {
+      line: null,
+      column: null,
+      lastColumn: null
+    };
+  };
+
+exports.BasicSourceMapConsumer = BasicSourceMapConsumer;
+
+/**
+ * An IndexedSourceMapConsumer instance represents a parsed source map which
+ * we can query for information. It differs from BasicSourceMapConsumer in
+ * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
+ * input.
+ *
+ * The first parameter is a raw source map (either as a JSON string, or already
+ * parsed to an object). According to the spec for indexed source maps, they
+ * have the following attributes:
+ *
+ *   - version: Which version of the source map spec this map is following.
+ *   - file: Optional. The generated file this source map is associated with.
+ *   - sections: A list of section definitions.
+ *
+ * Each value under the "sections" field has two fields:
+ *   - offset: The offset into the original specified at which this section
+ *       begins to apply, defined as an object with a "line" and "column"
+ *       field.
+ *   - map: A source map definition. This source map could also be indexed,
+ *       but doesn't have to be.
+ *
+ * Instead of the "map" field, it's also possible to have a "url" field
+ * specifying a URL to retrieve a source map from, but that's currently
+ * unsupported.
+ *
+ * Here's an example source map, taken from the source map spec[0], but
+ * modified to omit a section which uses the "url" field.
+ *
+ *  {
+ *    version : 3,
+ *    file: "app.js",
+ *    sections: [{
+ *      offset: {line:100, column:10},
+ *      map: {
+ *        version : 3,
+ *        file: "section.js",
+ *        sources: ["foo.js", "bar.js"],
+ *        names: ["src", "maps", "are", "fun"],
+ *        mappings: "AAAA,E;;ABCDE;"
+ *      }
+ *    }],
+ *  }
+ *
+ * The second parameter, if given, is a string whose value is the URL
+ * at which the source map was found.  This URL is used to compute the
+ * sources array.
+ *
+ * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
+ */
+function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) {
+  var sourceMap = aSourceMap;
+  if (typeof aSourceMap === 'string') {
+    sourceMap = util.parseSourceMapInput(aSourceMap);
+  }
+
+  var version = util.getArg(sourceMap, 'version');
+  var sections = util.getArg(sourceMap, 'sections');
+
+  if (version != this._version) {
+    throw new Error('Unsupported version: ' + version);
+  }
+
+  this._sources = new ArraySet();
+  this._names = new ArraySet();
+
+  var lastOffset = {
+    line: -1,
+    column: 0
+  };
+  this._sections = sections.map(function (s) {
+    if (s.url) {
+      // The url field will require support for asynchronicity.
+      // See https://github.com/mozilla/source-map/issues/16
+      throw new Error('Support for url field in sections not implemented.');
+    }
+    var offset = util.getArg(s, 'offset');
+    var offsetLine = util.getArg(offset, 'line');
+    var offsetColumn = util.getArg(offset, 'column');
+
+    if (offsetLine < lastOffset.line ||
+        (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) {
+      throw new Error('Section offsets must be ordered and non-overlapping.');
+    }
+    lastOffset = offset;
+
+    return {
+      generatedOffset: {
+        // The offset fields are 0-based, but we use 1-based indices when
+        // encoding/decoding from VLQ.
+        generatedLine: offsetLine + 1,
+        generatedColumn: offsetColumn + 1
+      },
+      consumer: new SourceMapConsumer(util.getArg(s, 'map'), aSourceMapURL)
+    }
+  });
+}
+
+IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
+IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;
+
+/**
+ * The version of the source mapping spec that we are consuming.
+ */
+IndexedSourceMapConsumer.prototype._version = 3;
+
+/**
+ * The list of original sources.
+ */
+Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
+  get: function () {
+    var sources = [];
+    for (var i = 0; i < this._sections.length; i++) {
+      for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
+        sources.push(this._sections[i].consumer.sources[j]);
+      }
+    }
+    return sources;
+  }
+});
+
+/**
+ * Returns the original source, line, and column information for the generated
+ * source's line and column positions provided. The only argument is an object
+ * with the following properties:
+ *
+ *   - line: The line number in the generated source.  The line number
+ *     is 1-based.
+ *   - column: The column number in the generated source.  The column
+ *     number is 0-based.
+ *
+ * and an object is returned with the following properties:
+ *
+ *   - source: The original source file, or null.
+ *   - line: The line number in the original source, or null.  The
+ *     line number is 1-based.
+ *   - column: The column number in the original source, or null.  The
+ *     column number is 0-based.
+ *   - name: The original identifier, or null.
+ */
+IndexedSourceMapConsumer.prototype.originalPositionFor =
+  function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
+    var needle = {
+      generatedLine: util.getArg(aArgs, 'line'),
+      generatedColumn: util.getArg(aArgs, 'column')
+    };
+
+    // Find the section containing the generated position we're trying to map
+    // to an original position.
+    var sectionIndex = binarySearch.search(needle, this._sections,
+      function(needle, section) {
+        var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
+        if (cmp) {
+          return cmp;
+        }
+
+        return (needle.generatedColumn -
+                section.generatedOffset.generatedColumn);
+      });
+    var section = this._sections[sectionIndex];
+
+    if (!section) {
+      return {
+        source: null,
+        line: null,
+        column: null,
+        name: null
+      };
+    }
+
+    return section.consumer.originalPositionFor({
+      line: needle.generatedLine -
+        (section.generatedOffset.generatedLine - 1),
+      column: needle.generatedColumn -
+        (section.generatedOffset.generatedLine === needle.generatedLine
+         ? section.generatedOffset.generatedColumn - 1
+         : 0),
+      bias: aArgs.bias
+    });
+  };
+
+/**
+ * Return true if we have the source content for every source in the source
+ * map, false otherwise.
+ */
+IndexedSourceMapConsumer.prototype.hasContentsOfAllSources =
+  function IndexedSourceMapConsumer_hasContentsOfAllSources() {
+    return this._sections.every(function (s) {
+      return s.consumer.hasContentsOfAllSources();
+    });
+  };
+
+/**
+ * Returns the original source content. The only argument is the url of the
+ * original source file. Returns null if no original source content is
+ * available.
+ */
+IndexedSourceMapConsumer.prototype.sourceContentFor =
+  function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
+    for (var i = 0; i < this._sections.length; i++) {
+      var section = this._sections[i];
+
+      var content = section.consumer.sourceContentFor(aSource, true);
+      if (content || content === '') {
+        return content;
+      }
+    }
+    if (nullOnMissing) {
+      return null;
+    }
+    else {
+      throw new Error('"' + aSource + '" is not in the SourceMap.');
+    }
+  };
+
+/**
+ * Returns the generated line and column information for the original source,
+ * line, and column positions provided. The only argument is an object with
+ * the following properties:
+ *
+ *   - source: The filename of the original source.
+ *   - line: The line number in the original source.  The line number
+ *     is 1-based.
+ *   - column: The column number in the original source.  The column
+ *     number is 0-based.
+ *
+ * and an object is returned with the following properties:
+ *
+ *   - line: The line number in the generated source, or null.  The
+ *     line number is 1-based. 
+ *   - column: The column number in the generated source, or null.
+ *     The column number is 0-based.
+ */
+IndexedSourceMapConsumer.prototype.generatedPositionFor =
+  function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
+    for (var i = 0; i < this._sections.length; i++) {
+      var section = this._sections[i];
+
+      // Only consider this section if the requested source is in the list of
+      // sources of the consumer.
+      if (section.consumer._findSourceIndex(util.getArg(aArgs, 'source')) === -1) {
+        continue;
+      }
+      var generatedPosition = section.consumer.generatedPositionFor(aArgs);
+      if (generatedPosition) {
+        var ret = {
+          line: generatedPosition.line +
+            (section.generatedOffset.generatedLine - 1),
+          column: generatedPosition.column +
+            (section.generatedOffset.generatedLine === generatedPosition.line
+             ? section.generatedOffset.generatedColumn - 1
+             : 0)
+        };
+        return ret;
+      }
+    }
+
+    return {
+      line: null,
+      column: null
+    };
+  };
+
+/**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+IndexedSourceMapConsumer.prototype._parseMappings =
+  function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+    this.__generatedMappings = [];
+    this.__originalMappings = [];
+    for (var i = 0; i < this._sections.length; i++) {
+      var section = this._sections[i];
+      var sectionMappings = section.consumer._generatedMappings;
+      for (var j = 0; j < sectionMappings.length; j++) {
+        var mapping = sectionMappings[j];
+
+        var source = section.consumer._sources.at(mapping.source);
+        source = util.computeSourceURL(section.consumer.sourceRoot, source, this._sourceMapURL);
+        this._sources.add(source);
+        source = this._sources.indexOf(source);
+
+        var name = null;
+        if (mapping.name) {
+          name = section.consumer._names.at(mapping.name);
+          this._names.add(name);
+          name = this._names.indexOf(name);
+        }
+
+        // The mappings coming from the consumer for the section have
+        // generated positions relative to the start of the section, so we
+        // need to offset them to be relative to the start of the concatenated
+        // generated file.
+        var adjustedMapping = {
+          source: source,
+          generatedLine: mapping.generatedLine +
+            (section.generatedOffset.generatedLine - 1),
+          generatedColumn: mapping.generatedColumn +
+            (section.generatedOffset.generatedLine === mapping.generatedLine
+            ? section.generatedOffset.generatedColumn - 1
+            : 0),
+          originalLine: mapping.originalLine,
+          originalColumn: mapping.originalColumn,
+          name: name
+        };
+
+        this.__generatedMappings.push(adjustedMapping);
+        if (typeof adjustedMapping.originalLine === 'number') {
+          this.__originalMappings.push(adjustedMapping);
+        }
+      }
+    }
+
+    quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
+    quickSort(this.__originalMappings, util.compareByOriginalPositions);
+  };
+
+exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-generator.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-generator.js
new file mode 100644
index 00000000..bab04ff8
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-map-generator.js
@@ -0,0 +1,444 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var base64VLQ = require('./base64-vlq');
+var util = require('./util');
+var ArraySet = require('./array-set').ArraySet;
+var MappingList = require('./mapping-list').MappingList;
+
+/**
+ * An instance of the SourceMapGenerator represents a source map which is
+ * being built incrementally. You may pass an object with the following
+ * properties:
+ *
+ *   - file: The filename of the generated source.
+ *   - sourceRoot: A root for all relative URLs in this source map.
+ */
+function SourceMapGenerator(aArgs) {
+  if (!aArgs) {
+    aArgs = {};
+  }
+  this._file = util.getArg(aArgs, 'file', null);
+  this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
+  this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
+  this._ignoreInvalidMapping = util.getArg(aArgs, 'ignoreInvalidMapping', false);
+  this._sources = new ArraySet();
+  this._names = new ArraySet();
+  this._mappings = new MappingList();
+  this._sourcesContents = null;
+}
+
+SourceMapGenerator.prototype._version = 3;
+
+/**
+ * Creates a new SourceMapGenerator based on a SourceMapConsumer
+ *
+ * @param aSourceMapConsumer The SourceMap.
+ */
+SourceMapGenerator.fromSourceMap =
+  function SourceMapGenerator_fromSourceMap(aSourceMapConsumer, generatorOps) {
+    var sourceRoot = aSourceMapConsumer.sourceRoot;
+    var generator = new SourceMapGenerator(Object.assign(generatorOps || {}, {
+      file: aSourceMapConsumer.file,
+      sourceRoot: sourceRoot
+    }));
+    aSourceMapConsumer.eachMapping(function (mapping) {
+      var newMapping = {
+        generated: {
+          line: mapping.generatedLine,
+          column: mapping.generatedColumn
+        }
+      };
+
+      if (mapping.source != null) {
+        newMapping.source = mapping.source;
+        if (sourceRoot != null) {
+          newMapping.source = util.relative(sourceRoot, newMapping.source);
+        }
+
+        newMapping.original = {
+          line: mapping.originalLine,
+          column: mapping.originalColumn
+        };
+
+        if (mapping.name != null) {
+          newMapping.name = mapping.name;
+        }
+      }
+
+      generator.addMapping(newMapping);
+    });
+    aSourceMapConsumer.sources.forEach(function (sourceFile) {
+      var sourceRelative = sourceFile;
+      if (sourceRoot !== null) {
+        sourceRelative = util.relative(sourceRoot, sourceFile);
+      }
+
+      if (!generator._sources.has(sourceRelative)) {
+        generator._sources.add(sourceRelative);
+      }
+
+      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+      if (content != null) {
+        generator.setSourceContent(sourceFile, content);
+      }
+    });
+    return generator;
+  };
+
+/**
+ * Add a single mapping from original source line and column to the generated
+ * source's line and column for this source map being created. The mapping
+ * object should have the following properties:
+ *
+ *   - generated: An object with the generated line and column positions.
+ *   - original: An object with the original line and column positions.
+ *   - source: The original source file (relative to the sourceRoot).
+ *   - name: An optional original token name for this mapping.
+ */
+SourceMapGenerator.prototype.addMapping =
+  function SourceMapGenerator_addMapping(aArgs) {
+    var generated = util.getArg(aArgs, 'generated');
+    var original = util.getArg(aArgs, 'original', null);
+    var source = util.getArg(aArgs, 'source', null);
+    var name = util.getArg(aArgs, 'name', null);
+
+    if (!this._skipValidation) {
+      if (this._validateMapping(generated, original, source, name) === false) {
+        return;
+      }
+    }
+
+    if (source != null) {
+      source = String(source);
+      if (!this._sources.has(source)) {
+        this._sources.add(source);
+      }
+    }
+
+    if (name != null) {
+      name = String(name);
+      if (!this._names.has(name)) {
+        this._names.add(name);
+      }
+    }
+
+    this._mappings.add({
+      generatedLine: generated.line,
+      generatedColumn: generated.column,
+      originalLine: original != null && original.line,
+      originalColumn: original != null && original.column,
+      source: source,
+      name: name
+    });
+  };
+
+/**
+ * Set the source content for a source file.
+ */
+SourceMapGenerator.prototype.setSourceContent =
+  function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
+    var source = aSourceFile;
+    if (this._sourceRoot != null) {
+      source = util.relative(this._sourceRoot, source);
+    }
+
+    if (aSourceContent != null) {
+      // Add the source content to the _sourcesContents map.
+      // Create a new _sourcesContents map if the property is null.
+      if (!this._sourcesContents) {
+        this._sourcesContents = Object.create(null);
+      }
+      this._sourcesContents[util.toSetString(source)] = aSourceContent;
+    } else if (this._sourcesContents) {
+      // Remove the source file from the _sourcesContents map.
+      // If the _sourcesContents map is empty, set the property to null.
+      delete this._sourcesContents[util.toSetString(source)];
+      if (Object.keys(this._sourcesContents).length === 0) {
+        this._sourcesContents = null;
+      }
+    }
+  };
+
+/**
+ * Applies the mappings of a sub-source-map for a specific source file to the
+ * source map being generated. Each mapping to the supplied source file is
+ * rewritten using the supplied source map. Note: The resolution for the
+ * resulting mappings is the minimium of this map and the supplied map.
+ *
+ * @param aSourceMapConsumer The source map to be applied.
+ * @param aSourceFile Optional. The filename of the source file.
+ *        If omitted, SourceMapConsumer's file property will be used.
+ * @param aSourceMapPath Optional. The dirname of the path to the source map
+ *        to be applied. If relative, it is relative to the SourceMapConsumer.
+ *        This parameter is needed when the two source maps aren't in the same
+ *        directory, and the source map to be applied contains relative source
+ *        paths. If so, those relative source paths need to be rewritten
+ *        relative to the SourceMapGenerator.
+ */
+SourceMapGenerator.prototype.applySourceMap =
+  function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
+    var sourceFile = aSourceFile;
+    // If aSourceFile is omitted, we will use the file property of the SourceMap
+    if (aSourceFile == null) {
+      if (aSourceMapConsumer.file == null) {
+        throw new Error(
+          'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
+          'or the source map\'s "file" property. Both were omitted.'
+        );
+      }
+      sourceFile = aSourceMapConsumer.file;
+    }
+    var sourceRoot = this._sourceRoot;
+    // Make "sourceFile" relative if an absolute Url is passed.
+    if (sourceRoot != null) {
+      sourceFile = util.relative(sourceRoot, sourceFile);
+    }
+    // Applying the SourceMap can add and remove items from the sources and
+    // the names array.
+    var newSources = new ArraySet();
+    var newNames = new ArraySet();
+
+    // Find mappings for the "sourceFile"
+    this._mappings.unsortedForEach(function (mapping) {
+      if (mapping.source === sourceFile && mapping.originalLine != null) {
+        // Check if it can be mapped by the source map, then update the mapping.
+        var original = aSourceMapConsumer.originalPositionFor({
+          line: mapping.originalLine,
+          column: mapping.originalColumn
+        });
+        if (original.source != null) {
+          // Copy mapping
+          mapping.source = original.source;
+          if (aSourceMapPath != null) {
+            mapping.source = util.join(aSourceMapPath, mapping.source)
+          }
+          if (sourceRoot != null) {
+            mapping.source = util.relative(sourceRoot, mapping.source);
+          }
+          mapping.originalLine = original.line;
+          mapping.originalColumn = original.column;
+          if (original.name != null) {
+            mapping.name = original.name;
+          }
+        }
+      }
+
+      var source = mapping.source;
+      if (source != null && !newSources.has(source)) {
+        newSources.add(source);
+      }
+
+      var name = mapping.name;
+      if (name != null && !newNames.has(name)) {
+        newNames.add(name);
+      }
+
+    }, this);
+    this._sources = newSources;
+    this._names = newNames;
+
+    // Copy sourcesContents of applied map.
+    aSourceMapConsumer.sources.forEach(function (sourceFile) {
+      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+      if (content != null) {
+        if (aSourceMapPath != null) {
+          sourceFile = util.join(aSourceMapPath, sourceFile);
+        }
+        if (sourceRoot != null) {
+          sourceFile = util.relative(sourceRoot, sourceFile);
+        }
+        this.setSourceContent(sourceFile, content);
+      }
+    }, this);
+  };
+
+/**
+ * A mapping can have one of the three levels of data:
+ *
+ *   1. Just the generated position.
+ *   2. The Generated position, original position, and original source.
+ *   3. Generated and original position, original source, as well as a name
+ *      token.
+ *
+ * To maintain consistency, we validate that any new mapping being added falls
+ * in to one of these categories.
+ */
+SourceMapGenerator.prototype._validateMapping =
+  function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
+                                              aName) {
+    // When aOriginal is truthy but has empty values for .line and .column,
+    // it is most likely a programmer error. In this case we throw a very
+    // specific error message to try to guide them the right way.
+    // For example: https://github.com/Polymer/polymer-bundler/pull/519
+    if (aOriginal && typeof aOriginal.line !== 'number' && typeof aOriginal.column !== 'number') {
+      var message = 'original.line and original.column are not numbers -- you probably meant to omit ' +
+      'the original mapping entirely and only map the generated position. If so, pass ' +
+      'null for the original mapping instead of an object with empty or null values.'
+
+      if (this._ignoreInvalidMapping) {
+        if (typeof console !== 'undefined' && console.warn) {
+          console.warn(message);
+        }
+        return false;
+      } else {
+        throw new Error(message);
+      }
+    }
+
+    if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+        && aGenerated.line > 0 && aGenerated.column >= 0
+        && !aOriginal && !aSource && !aName) {
+      // Case 1.
+      return;
+    }
+    else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+             && aOriginal && 'line' in aOriginal && 'column' in aOriginal
+             && aGenerated.line > 0 && aGenerated.column >= 0
+             && aOriginal.line > 0 && aOriginal.column >= 0
+             && aSource) {
+      // Cases 2 and 3.
+      return;
+    }
+    else {
+      var message = 'Invalid mapping: ' + JSON.stringify({
+        generated: aGenerated,
+        source: aSource,
+        original: aOriginal,
+        name: aName
+      });
+
+      if (this._ignoreInvalidMapping) {
+        if (typeof console !== 'undefined' && console.warn) {
+          console.warn(message);
+        }
+        return false;
+      } else {
+        throw new Error(message)
+      }
+    }
+  };
+
+/**
+ * Serialize the accumulated mappings in to the stream of base 64 VLQs
+ * specified by the source map format.
+ */
+SourceMapGenerator.prototype._serializeMappings =
+  function SourceMapGenerator_serializeMappings() {
+    var previousGeneratedColumn = 0;
+    var previousGeneratedLine = 1;
+    var previousOriginalColumn = 0;
+    var previousOriginalLine = 0;
+    var previousName = 0;
+    var previousSource = 0;
+    var result = '';
+    var next;
+    var mapping;
+    var nameIdx;
+    var sourceIdx;
+
+    var mappings = this._mappings.toArray();
+    for (var i = 0, len = mappings.length; i < len; i++) {
+      mapping = mappings[i];
+      next = ''
+
+      if (mapping.generatedLine !== previousGeneratedLine) {
+        previousGeneratedColumn = 0;
+        while (mapping.generatedLine !== previousGeneratedLine) {
+          next += ';';
+          previousGeneratedLine++;
+        }
+      }
+      else {
+        if (i > 0) {
+          if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
+            continue;
+          }
+          next += ',';
+        }
+      }
+
+      next += base64VLQ.encode(mapping.generatedColumn
+                                 - previousGeneratedColumn);
+      previousGeneratedColumn = mapping.generatedColumn;
+
+      if (mapping.source != null) {
+        sourceIdx = this._sources.indexOf(mapping.source);
+        next += base64VLQ.encode(sourceIdx - previousSource);
+        previousSource = sourceIdx;
+
+        // lines are stored 0-based in SourceMap spec version 3
+        next += base64VLQ.encode(mapping.originalLine - 1
+                                   - previousOriginalLine);
+        previousOriginalLine = mapping.originalLine - 1;
+
+        next += base64VLQ.encode(mapping.originalColumn
+                                   - previousOriginalColumn);
+        previousOriginalColumn = mapping.originalColumn;
+
+        if (mapping.name != null) {
+          nameIdx = this._names.indexOf(mapping.name);
+          next += base64VLQ.encode(nameIdx - previousName);
+          previousName = nameIdx;
+        }
+      }
+
+      result += next;
+    }
+
+    return result;
+  };
+
+SourceMapGenerator.prototype._generateSourcesContent =
+  function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
+    return aSources.map(function (source) {
+      if (!this._sourcesContents) {
+        return null;
+      }
+      if (aSourceRoot != null) {
+        source = util.relative(aSourceRoot, source);
+      }
+      var key = util.toSetString(source);
+      return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
+        ? this._sourcesContents[key]
+        : null;
+    }, this);
+  };
+
+/**
+ * Externalize the source map.
+ */
+SourceMapGenerator.prototype.toJSON =
+  function SourceMapGenerator_toJSON() {
+    var map = {
+      version: this._version,
+      sources: this._sources.toArray(),
+      names: this._names.toArray(),
+      mappings: this._serializeMappings()
+    };
+    if (this._file != null) {
+      map.file = this._file;
+    }
+    if (this._sourceRoot != null) {
+      map.sourceRoot = this._sourceRoot;
+    }
+    if (this._sourcesContents) {
+      map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
+    }
+
+    return map;
+  };
+
+/**
+ * Render the source map being generated to a string.
+ */
+SourceMapGenerator.prototype.toString =
+  function SourceMapGenerator_toString() {
+    return JSON.stringify(this.toJSON());
+  };
+
+exports.SourceMapGenerator = SourceMapGenerator;
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-node.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-node.js
new file mode 100644
index 00000000..8bcdbe38
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/source-node.js
@@ -0,0 +1,413 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator;
+var util = require('./util');
+
+// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
+// operating systems these days (capturing the result).
+var REGEX_NEWLINE = /(\r?\n)/;
+
+// Newline character code for charCodeAt() comparisons
+var NEWLINE_CODE = 10;
+
+// Private symbol for identifying `SourceNode`s when multiple versions of
+// the source-map library are loaded. This MUST NOT CHANGE across
+// versions!
+var isSourceNode = "$$$isSourceNode$$$";
+
+/**
+ * SourceNodes provide a way to abstract over interpolating/concatenating
+ * snippets of generated JavaScript source code while maintaining the line and
+ * column information associated with the original source code.
+ *
+ * @param aLine The original line number.
+ * @param aColumn The original column number.
+ * @param aSource The original source's filename.
+ * @param aChunks Optional. An array of strings which are snippets of
+ *        generated JS, or other SourceNodes.
+ * @param aName The original identifier.
+ */
+function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
+  this.children = [];
+  this.sourceContents = {};
+  this.line = aLine == null ? null : aLine;
+  this.column = aColumn == null ? null : aColumn;
+  this.source = aSource == null ? null : aSource;
+  this.name = aName == null ? null : aName;
+  this[isSourceNode] = true;
+  if (aChunks != null) this.add(aChunks);
+}
+
+/**
+ * Creates a SourceNode from generated code and a SourceMapConsumer.
+ *
+ * @param aGeneratedCode The generated code
+ * @param aSourceMapConsumer The SourceMap for the generated code
+ * @param aRelativePath Optional. The path that relative sources in the
+ *        SourceMapConsumer should be relative to.
+ */
+SourceNode.fromStringWithSourceMap =
+  function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
+    // The SourceNode we want to fill with the generated code
+    // and the SourceMap
+    var node = new SourceNode();
+
+    // All even indices of this array are one line of the generated code,
+    // while all odd indices are the newlines between two adjacent lines
+    // (since `REGEX_NEWLINE` captures its match).
+    // Processed fragments are accessed by calling `shiftNextLine`.
+    var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
+    var remainingLinesIndex = 0;
+    var shiftNextLine = function() {
+      var lineContents = getNextLine();
+      // The last line of a file might not have a newline.
+      var newLine = getNextLine() || "";
+      return lineContents + newLine;
+
+      function getNextLine() {
+        return remainingLinesIndex < remainingLines.length ?
+            remainingLines[remainingLinesIndex++] : undefined;
+      }
+    };
+
+    // We need to remember the position of "remainingLines"
+    var lastGeneratedLine = 1, lastGeneratedColumn = 0;
+
+    // The generate SourceNodes we need a code range.
+    // To extract it current and last mapping is used.
+    // Here we store the last mapping.
+    var lastMapping = null;
+
+    aSourceMapConsumer.eachMapping(function (mapping) {
+      if (lastMapping !== null) {
+        // We add the code from "lastMapping" to "mapping":
+        // First check if there is a new line in between.
+        if (lastGeneratedLine < mapping.generatedLine) {
+          // Associate first line with "lastMapping"
+          addMappingWithCode(lastMapping, shiftNextLine());
+          lastGeneratedLine++;
+          lastGeneratedColumn = 0;
+          // The remaining code is added without mapping
+        } else {
+          // There is no new line in between.
+          // Associate the code between "lastGeneratedColumn" and
+          // "mapping.generatedColumn" with "lastMapping"
+          var nextLine = remainingLines[remainingLinesIndex] || '';
+          var code = nextLine.substr(0, mapping.generatedColumn -
+                                        lastGeneratedColumn);
+          remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn -
+                                              lastGeneratedColumn);
+          lastGeneratedColumn = mapping.generatedColumn;
+          addMappingWithCode(lastMapping, code);
+          // No more remaining code, continue
+          lastMapping = mapping;
+          return;
+        }
+      }
+      // We add the generated code until the first mapping
+      // to the SourceNode without any mapping.
+      // Each line is added as separate string.
+      while (lastGeneratedLine < mapping.generatedLine) {
+        node.add(shiftNextLine());
+        lastGeneratedLine++;
+      }
+      if (lastGeneratedColumn < mapping.generatedColumn) {
+        var nextLine = remainingLines[remainingLinesIndex] || '';
+        node.add(nextLine.substr(0, mapping.generatedColumn));
+        remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn);
+        lastGeneratedColumn = mapping.generatedColumn;
+      }
+      lastMapping = mapping;
+    }, this);
+    // We have processed all mappings.
+    if (remainingLinesIndex < remainingLines.length) {
+      if (lastMapping) {
+        // Associate the remaining code in the current line with "lastMapping"
+        addMappingWithCode(lastMapping, shiftNextLine());
+      }
+      // and add the remaining lines without any mapping
+      node.add(remainingLines.splice(remainingLinesIndex).join(""));
+    }
+
+    // Copy sourcesContent into SourceNode
+    aSourceMapConsumer.sources.forEach(function (sourceFile) {
+      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+      if (content != null) {
+        if (aRelativePath != null) {
+          sourceFile = util.join(aRelativePath, sourceFile);
+        }
+        node.setSourceContent(sourceFile, content);
+      }
+    });
+
+    return node;
+
+    function addMappingWithCode(mapping, code) {
+      if (mapping === null || mapping.source === undefined) {
+        node.add(code);
+      } else {
+        var source = aRelativePath
+          ? util.join(aRelativePath, mapping.source)
+          : mapping.source;
+        node.add(new SourceNode(mapping.originalLine,
+                                mapping.originalColumn,
+                                source,
+                                code,
+                                mapping.name));
+      }
+    }
+  };
+
+/**
+ * Add a chunk of generated JS to this source node.
+ *
+ * @param aChunk A string snippet of generated JS code, another instance of
+ *        SourceNode, or an array where each member is one of those things.
+ */
+SourceNode.prototype.add = function SourceNode_add(aChunk) {
+  if (Array.isArray(aChunk)) {
+    aChunk.forEach(function (chunk) {
+      this.add(chunk);
+    }, this);
+  }
+  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
+    if (aChunk) {
+      this.children.push(aChunk);
+    }
+  }
+  else {
+    throw new TypeError(
+      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+    );
+  }
+  return this;
+};
+
+/**
+ * Add a chunk of generated JS to the beginning of this source node.
+ *
+ * @param aChunk A string snippet of generated JS code, another instance of
+ *        SourceNode, or an array where each member is one of those things.
+ */
+SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
+  if (Array.isArray(aChunk)) {
+    for (var i = aChunk.length-1; i >= 0; i--) {
+      this.prepend(aChunk[i]);
+    }
+  }
+  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
+    this.children.unshift(aChunk);
+  }
+  else {
+    throw new TypeError(
+      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+    );
+  }
+  return this;
+};
+
+/**
+ * Walk over the tree of JS snippets in this node and its children. The
+ * walking function is called once for each snippet of JS and is passed that
+ * snippet and the its original associated source's line/column location.
+ *
+ * @param aFn The traversal function.
+ */
+SourceNode.prototype.walk = function SourceNode_walk(aFn) {
+  var chunk;
+  for (var i = 0, len = this.children.length; i < len; i++) {
+    chunk = this.children[i];
+    if (chunk[isSourceNode]) {
+      chunk.walk(aFn);
+    }
+    else {
+      if (chunk !== '') {
+        aFn(chunk, { source: this.source,
+                     line: this.line,
+                     column: this.column,
+                     name: this.name });
+      }
+    }
+  }
+};
+
+/**
+ * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
+ * each of `this.children`.
+ *
+ * @param aSep The separator.
+ */
+SourceNode.prototype.join = function SourceNode_join(aSep) {
+  var newChildren;
+  var i;
+  var len = this.children.length;
+  if (len > 0) {
+    newChildren = [];
+    for (i = 0; i < len-1; i++) {
+      newChildren.push(this.children[i]);
+      newChildren.push(aSep);
+    }
+    newChildren.push(this.children[i]);
+    this.children = newChildren;
+  }
+  return this;
+};
+
+/**
+ * Call String.prototype.replace on the very right-most source snippet. Useful
+ * for trimming whitespace from the end of a source node, etc.
+ *
+ * @param aPattern The pattern to replace.
+ * @param aReplacement The thing to replace the pattern with.
+ */
+SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
+  var lastChild = this.children[this.children.length - 1];
+  if (lastChild[isSourceNode]) {
+    lastChild.replaceRight(aPattern, aReplacement);
+  }
+  else if (typeof lastChild === 'string') {
+    this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
+  }
+  else {
+    this.children.push(''.replace(aPattern, aReplacement));
+  }
+  return this;
+};
+
+/**
+ * Set the source content for a source file. This will be added to the SourceMapGenerator
+ * in the sourcesContent field.
+ *
+ * @param aSourceFile The filename of the source file
+ * @param aSourceContent The content of the source file
+ */
+SourceNode.prototype.setSourceContent =
+  function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
+    this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
+  };
+
+/**
+ * Walk over the tree of SourceNodes. The walking function is called for each
+ * source file content and is passed the filename and source content.
+ *
+ * @param aFn The traversal function.
+ */
+SourceNode.prototype.walkSourceContents =
+  function SourceNode_walkSourceContents(aFn) {
+    for (var i = 0, len = this.children.length; i < len; i++) {
+      if (this.children[i][isSourceNode]) {
+        this.children[i].walkSourceContents(aFn);
+      }
+    }
+
+    var sources = Object.keys(this.sourceContents);
+    for (var i = 0, len = sources.length; i < len; i++) {
+      aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
+    }
+  };
+
+/**
+ * Return the string representation of this source node. Walks over the tree
+ * and concatenates all the various snippets together to one string.
+ */
+SourceNode.prototype.toString = function SourceNode_toString() {
+  var str = "";
+  this.walk(function (chunk) {
+    str += chunk;
+  });
+  return str;
+};
+
+/**
+ * Returns the string representation of this source node along with a source
+ * map.
+ */
+SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
+  var generated = {
+    code: "",
+    line: 1,
+    column: 0
+  };
+  var map = new SourceMapGenerator(aArgs);
+  var sourceMappingActive = false;
+  var lastOriginalSource = null;
+  var lastOriginalLine = null;
+  var lastOriginalColumn = null;
+  var lastOriginalName = null;
+  this.walk(function (chunk, original) {
+    generated.code += chunk;
+    if (original.source !== null
+        && original.line !== null
+        && original.column !== null) {
+      if(lastOriginalSource !== original.source
+         || lastOriginalLine !== original.line
+         || lastOriginalColumn !== original.column
+         || lastOriginalName !== original.name) {
+        map.addMapping({
+          source: original.source,
+          original: {
+            line: original.line,
+            column: original.column
+          },
+          generated: {
+            line: generated.line,
+            column: generated.column
+          },
+          name: original.name
+        });
+      }
+      lastOriginalSource = original.source;
+      lastOriginalLine = original.line;
+      lastOriginalColumn = original.column;
+      lastOriginalName = original.name;
+      sourceMappingActive = true;
+    } else if (sourceMappingActive) {
+      map.addMapping({
+        generated: {
+          line: generated.line,
+          column: generated.column
+        }
+      });
+      lastOriginalSource = null;
+      sourceMappingActive = false;
+    }
+    for (var idx = 0, length = chunk.length; idx < length; idx++) {
+      if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
+        generated.line++;
+        generated.column = 0;
+        // Mappings end at eol
+        if (idx + 1 === length) {
+          lastOriginalSource = null;
+          sourceMappingActive = false;
+        } else if (sourceMappingActive) {
+          map.addMapping({
+            source: original.source,
+            original: {
+              line: original.line,
+              column: original.column
+            },
+            generated: {
+              line: generated.line,
+              column: generated.column
+            },
+            name: original.name
+          });
+        }
+      } else {
+        generated.column++;
+      }
+    }
+  });
+  this.walkSourceContents(function (sourceFile, sourceContent) {
+    map.setSourceContent(sourceFile, sourceContent);
+  });
+
+  return { code: generated.code, map: map };
+};
+
+exports.SourceNode = SourceNode;
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/util.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/util.js
new file mode 100644
index 00000000..430e2d0f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/lib/util.js
@@ -0,0 +1,594 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+/**
+ * This is a helper function for getting values from parameter/options
+ * objects.
+ *
+ * @param args The object we are extracting values from
+ * @param name The name of the property we are getting.
+ * @param defaultValue An optional value to return if the property is missing
+ * from the object. If this is not specified and the property is missing, an
+ * error will be thrown.
+ */
+function getArg(aArgs, aName, aDefaultValue) {
+  if (aName in aArgs) {
+    return aArgs[aName];
+  } else if (arguments.length === 3) {
+    return aDefaultValue;
+  } else {
+    throw new Error('"' + aName + '" is a required argument.');
+  }
+}
+exports.getArg = getArg;
+
+var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/;
+var dataUrlRegexp = /^data:.+\,.+$/;
+
+function urlParse(aUrl) {
+  var match = aUrl.match(urlRegexp);
+  if (!match) {
+    return null;
+  }
+  return {
+    scheme: match[1],
+    auth: match[2],
+    host: match[3],
+    port: match[4],
+    path: match[5]
+  };
+}
+exports.urlParse = urlParse;
+
+function urlGenerate(aParsedUrl) {
+  var url = '';
+  if (aParsedUrl.scheme) {
+    url += aParsedUrl.scheme + ':';
+  }
+  url += '//';
+  if (aParsedUrl.auth) {
+    url += aParsedUrl.auth + '@';
+  }
+  if (aParsedUrl.host) {
+    url += aParsedUrl.host;
+  }
+  if (aParsedUrl.port) {
+    url += ":" + aParsedUrl.port
+  }
+  if (aParsedUrl.path) {
+    url += aParsedUrl.path;
+  }
+  return url;
+}
+exports.urlGenerate = urlGenerate;
+
+var MAX_CACHED_INPUTS = 32;
+
+/**
+ * Takes some function `f(input) -> result` and returns a memoized version of
+ * `f`.
+ *
+ * We keep at most `MAX_CACHED_INPUTS` memoized results of `f` alive. The
+ * memoization is a dumb-simple, linear least-recently-used cache.
+ */
+function lruMemoize(f) {
+  var cache = [];
+
+  return function(input) {
+    for (var i = 0; i < cache.length; i++) {
+      if (cache[i].input === input) {
+        var temp = cache[0];
+        cache[0] = cache[i];
+        cache[i] = temp;
+        return cache[0].result;
+      }
+    }
+
+    var result = f(input);
+
+    cache.unshift({
+      input,
+      result,
+    });
+
+    if (cache.length > MAX_CACHED_INPUTS) {
+      cache.pop();
+    }
+
+    return result;
+  };
+}
+
+/**
+ * Normalizes a path, or the path portion of a URL:
+ *
+ * - Replaces consecutive slashes with one slash.
+ * - Removes unnecessary '.' parts.
+ * - Removes unnecessary '<dir>/..' parts.
+ *
+ * Based on code in the Node.js 'path' core module.
+ *
+ * @param aPath The path or url to normalize.
+ */
+var normalize = lruMemoize(function normalize(aPath) {
+  var path = aPath;
+  var url = urlParse(aPath);
+  if (url) {
+    if (!url.path) {
+      return aPath;
+    }
+    path = url.path;
+  }
+  var isAbsolute = exports.isAbsolute(path);
+  // Split the path into parts between `/` characters. This is much faster than
+  // using `.split(/\/+/g)`.
+  var parts = [];
+  var start = 0;
+  var i = 0;
+  while (true) {
+    start = i;
+    i = path.indexOf("/", start);
+    if (i === -1) {
+      parts.push(path.slice(start));
+      break;
+    } else {
+      parts.push(path.slice(start, i));
+      while (i < path.length && path[i] === "/") {
+        i++;
+      }
+    }
+  }
+
+  for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
+    part = parts[i];
+    if (part === '.') {
+      parts.splice(i, 1);
+    } else if (part === '..') {
+      up++;
+    } else if (up > 0) {
+      if (part === '') {
+        // The first part is blank if the path is absolute. Trying to go
+        // above the root is a no-op. Therefore we can remove all '..' parts
+        // directly after the root.
+        parts.splice(i + 1, up);
+        up = 0;
+      } else {
+        parts.splice(i, 2);
+        up--;
+      }
+    }
+  }
+  path = parts.join('/');
+
+  if (path === '') {
+    path = isAbsolute ? '/' : '.';
+  }
+
+  if (url) {
+    url.path = path;
+    return urlGenerate(url);
+  }
+  return path;
+});
+exports.normalize = normalize;
+
+/**
+ * Joins two paths/URLs.
+ *
+ * @param aRoot The root path or URL.
+ * @param aPath The path or URL to be joined with the root.
+ *
+ * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
+ *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
+ *   first.
+ * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
+ *   is updated with the result and aRoot is returned. Otherwise the result
+ *   is returned.
+ *   - If aPath is absolute, the result is aPath.
+ *   - Otherwise the two paths are joined with a slash.
+ * - Joining for example 'http://' and 'www.example.com' is also supported.
+ */
+function join(aRoot, aPath) {
+  if (aRoot === "") {
+    aRoot = ".";
+  }
+  if (aPath === "") {
+    aPath = ".";
+  }
+  var aPathUrl = urlParse(aPath);
+  var aRootUrl = urlParse(aRoot);
+  if (aRootUrl) {
+    aRoot = aRootUrl.path || '/';
+  }
+
+  // `join(foo, '//www.example.org')`
+  if (aPathUrl && !aPathUrl.scheme) {
+    if (aRootUrl) {
+      aPathUrl.scheme = aRootUrl.scheme;
+    }
+    return urlGenerate(aPathUrl);
+  }
+
+  if (aPathUrl || aPath.match(dataUrlRegexp)) {
+    return aPath;
+  }
+
+  // `join('http://', 'www.example.com')`
+  if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
+    aRootUrl.host = aPath;
+    return urlGenerate(aRootUrl);
+  }
+
+  var joined = aPath.charAt(0) === '/'
+    ? aPath
+    : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);
+
+  if (aRootUrl) {
+    aRootUrl.path = joined;
+    return urlGenerate(aRootUrl);
+  }
+  return joined;
+}
+exports.join = join;
+
+exports.isAbsolute = function (aPath) {
+  return aPath.charAt(0) === '/' || urlRegexp.test(aPath);
+};
+
+/**
+ * Make a path relative to a URL or another path.
+ *
+ * @param aRoot The root path or URL.
+ * @param aPath The path or URL to be made relative to aRoot.
+ */
+function relative(aRoot, aPath) {
+  if (aRoot === "") {
+    aRoot = ".";
+  }
+
+  aRoot = aRoot.replace(/\/$/, '');
+
+  // It is possible for the path to be above the root. In this case, simply
+  // checking whether the root is a prefix of the path won't work. Instead, we
+  // need to remove components from the root one by one, until either we find
+  // a prefix that fits, or we run out of components to remove.
+  var level = 0;
+  while (aPath.indexOf(aRoot + '/') !== 0) {
+    var index = aRoot.lastIndexOf("/");
+    if (index < 0) {
+      return aPath;
+    }
+
+    // If the only part of the root that is left is the scheme (i.e. http://,
+    // file:///, etc.), one or more slashes (/), or simply nothing at all, we
+    // have exhausted all components, so the path is not relative to the root.
+    aRoot = aRoot.slice(0, index);
+    if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
+      return aPath;
+    }
+
+    ++level;
+  }
+
+  // Make sure we add a "../" for each component we removed from the root.
+  return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
+}
+exports.relative = relative;
+
+var supportsNullProto = (function () {
+  var obj = Object.create(null);
+  return !('__proto__' in obj);
+}());
+
+function identity (s) {
+  return s;
+}
+
+/**
+ * Because behavior goes wacky when you set `__proto__` on objects, we
+ * have to prefix all the strings in our set with an arbitrary character.
+ *
+ * See https://github.com/mozilla/source-map/pull/31 and
+ * https://github.com/mozilla/source-map/issues/30
+ *
+ * @param String aStr
+ */
+function toSetString(aStr) {
+  if (isProtoString(aStr)) {
+    return '$' + aStr;
+  }
+
+  return aStr;
+}
+exports.toSetString = supportsNullProto ? identity : toSetString;
+
+function fromSetString(aStr) {
+  if (isProtoString(aStr)) {
+    return aStr.slice(1);
+  }
+
+  return aStr;
+}
+exports.fromSetString = supportsNullProto ? identity : fromSetString;
+
+function isProtoString(s) {
+  if (!s) {
+    return false;
+  }
+
+  var length = s.length;
+
+  if (length < 9 /* "__proto__".length */) {
+    return false;
+  }
+
+  if (s.charCodeAt(length - 1) !== 95  /* '_' */ ||
+      s.charCodeAt(length - 2) !== 95  /* '_' */ ||
+      s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
+      s.charCodeAt(length - 4) !== 116 /* 't' */ ||
+      s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
+      s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
+      s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
+      s.charCodeAt(length - 8) !== 95  /* '_' */ ||
+      s.charCodeAt(length - 9) !== 95  /* '_' */) {
+    return false;
+  }
+
+  for (var i = length - 10; i >= 0; i--) {
+    if (s.charCodeAt(i) !== 36 /* '$' */) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+/**
+ * Comparator between two mappings where the original positions are compared.
+ *
+ * Optionally pass in `true` as `onlyCompareGenerated` to consider two
+ * mappings with the same original source/line/column, but different generated
+ * line and column the same. Useful when searching for a mapping with a
+ * stubbed out mapping.
+ */
+function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
+  var cmp = strcmp(mappingA.source, mappingB.source);
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalLine - mappingB.originalLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalColumn - mappingB.originalColumn;
+  if (cmp !== 0 || onlyCompareOriginal) {
+    return cmp;
+  }
+
+  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.generatedLine - mappingB.generatedLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByOriginalPositions = compareByOriginalPositions;
+
+function compareByOriginalPositionsNoSource(mappingA, mappingB, onlyCompareOriginal) {
+  var cmp
+
+  cmp = mappingA.originalLine - mappingB.originalLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalColumn - mappingB.originalColumn;
+  if (cmp !== 0 || onlyCompareOriginal) {
+    return cmp;
+  }
+
+  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.generatedLine - mappingB.generatedLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByOriginalPositionsNoSource = compareByOriginalPositionsNoSource;
+
+/**
+ * Comparator between two mappings with deflated source and name indices where
+ * the generated positions are compared.
+ *
+ * Optionally pass in `true` as `onlyCompareGenerated` to consider two
+ * mappings with the same generated line and column, but different
+ * source/name/original line and column the same. Useful when searching for a
+ * mapping with a stubbed out mapping.
+ */
+function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
+  var cmp = mappingA.generatedLine - mappingB.generatedLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+  if (cmp !== 0 || onlyCompareGenerated) {
+    return cmp;
+  }
+
+  cmp = strcmp(mappingA.source, mappingB.source);
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalLine - mappingB.originalLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalColumn - mappingB.originalColumn;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;
+
+function compareByGeneratedPositionsDeflatedNoLine(mappingA, mappingB, onlyCompareGenerated) {
+  var cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+  if (cmp !== 0 || onlyCompareGenerated) {
+    return cmp;
+  }
+
+  cmp = strcmp(mappingA.source, mappingB.source);
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalLine - mappingB.originalLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalColumn - mappingB.originalColumn;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByGeneratedPositionsDeflatedNoLine = compareByGeneratedPositionsDeflatedNoLine;
+
+function strcmp(aStr1, aStr2) {
+  if (aStr1 === aStr2) {
+    return 0;
+  }
+
+  if (aStr1 === null) {
+    return 1; // aStr2 !== null
+  }
+
+  if (aStr2 === null) {
+    return -1; // aStr1 !== null
+  }
+
+  if (aStr1 > aStr2) {
+    return 1;
+  }
+
+  return -1;
+}
+
+/**
+ * Comparator between two mappings with inflated source and name strings where
+ * the generated positions are compared.
+ */
+function compareByGeneratedPositionsInflated(mappingA, mappingB) {
+  var cmp = mappingA.generatedLine - mappingB.generatedLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = strcmp(mappingA.source, mappingB.source);
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalLine - mappingB.originalLine;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  cmp = mappingA.originalColumn - mappingB.originalColumn;
+  if (cmp !== 0) {
+    return cmp;
+  }
+
+  return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
+
+/**
+ * Strip any JSON XSSI avoidance prefix from the string (as documented
+ * in the source maps specification), and then parse the string as
+ * JSON.
+ */
+function parseSourceMapInput(str) {
+  return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
+}
+exports.parseSourceMapInput = parseSourceMapInput;
+
+/**
+ * Compute the URL of a source given the the source root, the source's
+ * URL, and the source map's URL.
+ */
+function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
+  sourceURL = sourceURL || '';
+
+  if (sourceRoot) {
+    // This follows what Chrome does.
+    if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') {
+      sourceRoot += '/';
+    }
+    // The spec says:
+    //   Line 4: An optional source root, useful for relocating source
+    //   files on a server or removing repeated values in the
+    //   “sources” entry.  This value is prepended to the individual
+    //   entries in the “source” field.
+    sourceURL = sourceRoot + sourceURL;
+  }
+
+  // Historically, SourceMapConsumer did not take the sourceMapURL as
+  // a parameter.  This mode is still somewhat supported, which is why
+  // this code block is conditional.  However, it's preferable to pass
+  // the source map URL to SourceMapConsumer, so that this function
+  // can implement the source URL resolution algorithm as outlined in
+  // the spec.  This block is basically the equivalent of:
+  //    new URL(sourceURL, sourceMapURL).toString()
+  // ... except it avoids using URL, which wasn't available in the
+  // older releases of node still supported by this library.
+  //
+  // The spec says:
+  //   If the sources are not absolute URLs after prepending of the
+  //   “sourceRoot”, the sources are resolved relative to the
+  //   SourceMap (like resolving script src in a html document).
+  if (sourceMapURL) {
+    var parsed = urlParse(sourceMapURL);
+    if (!parsed) {
+      throw new Error("sourceMapURL could not be parsed");
+    }
+    if (parsed.path) {
+      // Strip the last path component, but keep the "/".
+      var index = parsed.path.lastIndexOf('/');
+      if (index >= 0) {
+        parsed.path = parsed.path.substring(0, index + 1);
+      }
+    }
+    sourceURL = join(urlGenerate(parsed), sourceURL);
+  }
+
+  return normalize(sourceURL);
+}
+exports.computeSourceURL = computeSourceURL;
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/package.json b/src/main/webapp/com/css/sass/node_modules/source-map-js/package.json
new file mode 100644
index 00000000..f16eb36f
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/package.json
@@ -0,0 +1,71 @@
+{
+  "name": "source-map-js",
+  "description": "Generates and consumes source maps",
+  "version": "1.2.0",
+  "homepage": "https://github.com/7rulnik/source-map-js",
+  "author": "Valentin 7rulnik Semirulnik <v7rulnik@gmail.com>",
+  "contributors": [
+    "Nick Fitzgerald <nfitzgerald@mozilla.com>",
+    "Tobias Koppers <tobias.koppers@googlemail.com>",
+    "Duncan Beevers <duncan@dweebd.com>",
+    "Stephen Crane <scrane@mozilla.com>",
+    "Ryan Seddon <seddon.ryan@gmail.com>",
+    "Miles Elam <miles.elam@deem.com>",
+    "Mihai Bazon <mihai.bazon@gmail.com>",
+    "Michael Ficarra <github.public.email@michael.ficarra.me>",
+    "Todd Wolfson <todd@twolfson.com>",
+    "Alexander Solovyov <alexander@solovyov.net>",
+    "Felix Gnass <fgnass@gmail.com>",
+    "Conrad Irwin <conrad.irwin@gmail.com>",
+    "usrbincc <usrbincc@yahoo.com>",
+    "David Glasser <glasser@davidglasser.net>",
+    "Chase Douglas <chase@newrelic.com>",
+    "Evan Wallace <evan.exe@gmail.com>",
+    "Heather Arthur <fayearthur@gmail.com>",
+    "Hugh Kennedy <hughskennedy@gmail.com>",
+    "David Glasser <glasser@davidglasser.net>",
+    "Simon Lydell <simon.lydell@gmail.com>",
+    "Jmeas Smith <jellyes2@gmail.com>",
+    "Michael Z Goddard <mzgoddard@gmail.com>",
+    "azu <azu@users.noreply.github.com>",
+    "John Gozde <john@gozde.ca>",
+    "Adam Kirkton <akirkton@truefitinnovation.com>",
+    "Chris Montgomery <christopher.montgomery@dowjones.com>",
+    "J. Ryan Stinnett <jryans@gmail.com>",
+    "Jack Herrington <jherrington@walmartlabs.com>",
+    "Chris Truter <jeffpalentine@gmail.com>",
+    "Daniel Espeset <daniel@danielespeset.com>",
+    "Jamie Wong <jamie.lf.wong@gmail.com>",
+    "Eddy Bruël <ejpbruel@mozilla.com>",
+    "Hawken Rives <hawkrives@gmail.com>",
+    "Gilad Peleg <giladp007@gmail.com>",
+    "djchie <djchie.dev@gmail.com>",
+    "Gary Ye <garysye@gmail.com>",
+    "Nicolas Lalevée <nicolas.lalevee@hibnet.org>"
+  ],
+  "repository": "7rulnik/source-map-js",
+  "main": "./source-map.js",
+  "files": [
+    "source-map.js",
+    "source-map.d.ts",
+    "lib/"
+  ],
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "license": "BSD-3-Clause",
+  "scripts": {
+    "test": "npm run build && node test/run-tests.js",
+    "build": "webpack --color",
+    "toc": "doctoc --title '## Table of Contents' README.md && doctoc --title '## Table of Contents' CONTRIBUTING.md"
+  },
+  "devDependencies": {
+    "clean-publish": "^3.1.0",
+    "doctoc": "^0.15.0",
+    "webpack": "^1.12.0"
+  },
+  "clean-publish": {
+    "cleanDocs": true
+  },
+  "typings": "source-map.d.ts"
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.d.ts b/src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.d.ts
new file mode 100644
index 00000000..9f8a4b38
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.d.ts
@@ -0,0 +1,115 @@
+declare module 'source-map-js' { 
+    export interface StartOfSourceMap {
+        file?: string;
+        sourceRoot?: string;
+    }
+
+    export interface RawSourceMap extends StartOfSourceMap {
+        version: string;
+        sources: string[];
+        names: string[];
+        sourcesContent?: string[];
+        mappings: string;
+    }
+
+    export interface Position {
+        line: number;
+        column: number;
+    }
+
+    export interface LineRange extends Position {
+        lastColumn: number;
+    }
+
+    export interface FindPosition extends Position {
+        // SourceMapConsumer.GREATEST_LOWER_BOUND or SourceMapConsumer.LEAST_UPPER_BOUND
+        bias?: number;
+    }
+
+    export interface SourceFindPosition extends FindPosition {
+        source: string;
+    }
+
+    export interface MappedPosition extends Position {
+        source: string;
+        name?: string;
+    }
+
+    export interface MappingItem {
+        source: string;
+        generatedLine: number;
+        generatedColumn: number;
+        originalLine: number;
+        originalColumn: number;
+        name: string;
+    }
+
+    export class SourceMapConsumer {
+        static GENERATED_ORDER: number;
+        static ORIGINAL_ORDER: number;
+
+        static GREATEST_LOWER_BOUND: number;
+        static LEAST_UPPER_BOUND: number;
+
+        constructor(rawSourceMap: RawSourceMap);
+        computeColumnSpans(): void;
+        originalPositionFor(generatedPosition: FindPosition): MappedPosition;
+        generatedPositionFor(originalPosition: SourceFindPosition): LineRange;
+        allGeneratedPositionsFor(originalPosition: MappedPosition): Position[];
+        hasContentsOfAllSources(): boolean;
+        sourceContentFor(source: string, returnNullOnMissing?: boolean): string;
+        eachMapping(callback: (mapping: MappingItem) => void, context?: any, order?: number): void;
+    }
+
+    export interface Mapping {
+        generated: Position;
+        original: Position;
+        source: string;
+        name?: string;
+    }
+
+    export class SourceMapGenerator {
+        constructor(startOfSourceMap?: StartOfSourceMap);
+        static fromSourceMap(sourceMapConsumer: SourceMapConsumer): SourceMapGenerator;
+        addMapping(mapping: Mapping): void;
+        setSourceContent(sourceFile: string, sourceContent: string): void;
+        applySourceMap(sourceMapConsumer: SourceMapConsumer, sourceFile?: string, sourceMapPath?: string): void;
+        toString(): string;
+    }
+
+    export interface CodeWithSourceMap {
+        code: string;
+        map: SourceMapGenerator;
+    }
+
+    export class SourceNode {
+        constructor();
+        constructor(line: number, column: number, source: string);
+        constructor(line: number, column: number, source: string, chunk?: string, name?: string);
+        static fromStringWithSourceMap(code: string, sourceMapConsumer: SourceMapConsumer, relativePath?: string): SourceNode;
+        add(chunk: string): void;
+        prepend(chunk: string): void;
+        setSourceContent(sourceFile: string, sourceContent: string): void;
+        walk(fn: (chunk: string, mapping: MappedPosition) => void): void;
+        walkSourceContents(fn: (file: string, content: string) => void): void;
+        join(sep: string): SourceNode;
+        replaceRight(pattern: string, replacement: string): SourceNode;
+        toString(): string;
+        toStringWithSourceMap(startOfSourceMap?: StartOfSourceMap): CodeWithSourceMap;
+    }
+}
+
+declare module 'source-map-js/lib/source-map-generator' {
+    import { SourceMapGenerator } from 'source-map-js'
+    export { SourceMapGenerator }
+}
+
+declare module 'source-map-js/lib/source-map-consumer' {
+    import { SourceMapConsumer } from 'source-map-js'
+    export { SourceMapConsumer }
+}
+
+declare module 'source-map-js/lib/source-node' {
+    import { SourceNode } from 'source-map-js'
+    export { SourceNode }
+}
diff --git a/src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.js b/src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.js
new file mode 100644
index 00000000..bc88fe82
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/source-map-js/source-map.js
@@ -0,0 +1,8 @@
+/*
+ * Copyright 2009-2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE.txt or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+exports.SourceMapGenerator = require('./lib/source-map-generator').SourceMapGenerator;
+exports.SourceMapConsumer = require('./lib/source-map-consumer').SourceMapConsumer;
+exports.SourceNode = require('./lib/source-node').SourceNode;
diff --git a/src/main/webapp/com/css/sass/node_modules/to-regex-range/LICENSE b/src/main/webapp/com/css/sass/node_modules/to-regex-range/LICENSE
new file mode 100644
index 00000000..7cccaf9e
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/to-regex-range/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015-present, Jon Schlinkert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/main/webapp/com/css/sass/node_modules/to-regex-range/README.md b/src/main/webapp/com/css/sass/node_modules/to-regex-range/README.md
new file mode 100644
index 00000000..38887daf
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/to-regex-range/README.md
@@ -0,0 +1,305 @@
+# to-regex-range [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W8YFZ425KND68) [![NPM version](https://img.shields.io/npm/v/to-regex-range.svg?style=flat)](https://www.npmjs.com/package/to-regex-range) [![NPM monthly downloads](https://img.shields.io/npm/dm/to-regex-range.svg?style=flat)](https://npmjs.org/package/to-regex-range) [![NPM total downloads](https://img.shields.io/npm/dt/to-regex-range.svg?style=flat)](https://npmjs.org/package/to-regex-range) [![Linux Build Status](https://img.shields.io/travis/micromatch/to-regex-range.svg?style=flat&label=Travis)](https://travis-ci.org/micromatch/to-regex-range)
+
+> Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.
+
+Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
+
+## Install
+
+Install with [npm](https://www.npmjs.com/):
+
+```sh
+$ npm install --save to-regex-range
+```
+
+<details>
+<summary><strong>What does this do?</strong></summary>
+
+<br>
+
+This libary generates the `source` string to be passed to `new RegExp()` for matching a range of numbers.
+
+**Example**
+
+```js
+const toRegexRange = require('to-regex-range');
+const regex = new RegExp(toRegexRange('15', '95'));
+```
+
+A string is returned so that you can do whatever you need with it before passing it to `new RegExp()` (like adding `^` or `$` boundaries, defining flags, or combining it another string).
+
+<br>
+
+</details>
+
+<details>
+<summary><strong>Why use this library?</strong></summary>
+
+<br>
+
+### Convenience
+
+Creating regular expressions for matching numbers gets deceptively complicated pretty fast.
+
+For example, let's say you need a validation regex for matching part of a user-id, postal code, social security number, tax id, etc:
+
+* regex for matching `1` => `/1/` (easy enough)
+* regex for matching `1` through `5` => `/[1-5]/` (not bad...)
+* regex for matching `1` or `5` => `/(1|5)/` (still easy...)
+* regex for matching `1` through `50` => `/([1-9]|[1-4][0-9]|50)/` (uh-oh...)
+* regex for matching `1` through `55` => `/([1-9]|[1-4][0-9]|5[0-5])/` (no prob, I can do this...)
+* regex for matching `1` through `555` => `/([1-9]|[1-9][0-9]|[1-4][0-9]{2}|5[0-4][0-9]|55[0-5])/` (maybe not...)
+* regex for matching `0001` through `5555` => `/(0{3}[1-9]|0{2}[1-9][0-9]|0[1-9][0-9]{2}|[1-4][0-9]{3}|5[0-4][0-9]{2}|55[0-4][0-9]|555[0-5])/` (okay, I get the point!)
+
+The numbers are contrived, but they're also really basic. In the real world you might need to generate a regex on-the-fly for validation.
+
+**Learn more**
+
+If you're interested in learning more about [character classes](http://www.regular-expressions.info/charclass.html) and other regex features, I personally have always found [regular-expressions.info](http://www.regular-expressions.info/charclass.html) to be pretty useful.
+
+### Heavily tested
+
+As of April 07, 2019, this library runs [>1m test assertions](./test/test.js) against generated regex-ranges to provide brute-force verification that results are correct.
+
+Tests run in ~280ms on my MacBook Pro, 2.5 GHz Intel Core i7.
+
+### Optimized
+
+Generated regular expressions are optimized:
+
+* duplicate sequences and character classes are reduced using quantifiers
+* smart enough to use `?` conditionals when number(s) or range(s) can be positive or negative
+* uses fragment caching to avoid processing the same exact string more than once
+
+<br>
+
+</details>
+
+## Usage
+
+Add this library to your javascript application with the following line of code
+
+```js
+const toRegexRange = require('to-regex-range');
+```
+
+The main export is a function that takes two integers: the `min` value and `max` value (formatted as strings or numbers).
+
+```js
+const source = toRegexRange('15', '95');
+//=> 1[5-9]|[2-8][0-9]|9[0-5]
+
+const regex = new RegExp(`^${source}$`);
+console.log(regex.test('14')); //=> false
+console.log(regex.test('50')); //=> true
+console.log(regex.test('94')); //=> true
+console.log(regex.test('96')); //=> false
+```
+
+## Options
+
+### options.capture
+
+**Type**: `boolean`
+
+**Deafault**: `undefined`
+
+Wrap the returned value in parentheses when there is more than one regex condition. Useful when you're dynamically generating ranges.
+
+```js
+console.log(toRegexRange('-10', '10'));
+//=> -[1-9]|-?10|[0-9]
+
+console.log(toRegexRange('-10', '10', { capture: true }));
+//=> (-[1-9]|-?10|[0-9])
+```
+
+### options.shorthand
+
+**Type**: `boolean`
+
+**Deafault**: `undefined`
+
+Use the regex shorthand for `[0-9]`:
+
+```js
+console.log(toRegexRange('0', '999999'));
+//=> [0-9]|[1-9][0-9]{1,5}
+
+console.log(toRegexRange('0', '999999', { shorthand: true }));
+//=> \d|[1-9]\d{1,5}
+```
+
+### options.relaxZeros
+
+**Type**: `boolean`
+
+**Default**: `true`
+
+This option relaxes matching for leading zeros when when ranges are zero-padded.
+
+```js
+const source = toRegexRange('-0010', '0010');
+const regex = new RegExp(`^${source}$`);
+console.log(regex.test('-10')); //=> true
+console.log(regex.test('-010')); //=> true
+console.log(regex.test('-0010')); //=> true
+console.log(regex.test('10')); //=> true
+console.log(regex.test('010')); //=> true
+console.log(regex.test('0010')); //=> true
+```
+
+When `relaxZeros` is false, matching is strict:
+
+```js
+const source = toRegexRange('-0010', '0010', { relaxZeros: false });
+const regex = new RegExp(`^${source}$`);
+console.log(regex.test('-10')); //=> false
+console.log(regex.test('-010')); //=> false
+console.log(regex.test('-0010')); //=> true
+console.log(regex.test('10')); //=> false
+console.log(regex.test('010')); //=> false
+console.log(regex.test('0010')); //=> true
+```
+
+## Examples
+
+| **Range**                   | **Result**                                                                      | **Compile time** |
+| ---                         | ---                                                                             | ---              |
+| `toRegexRange(-10, 10)`     | `-[1-9]\|-?10\|[0-9]`                                                           | _132μs_          |
+| `toRegexRange(-100, -10)`   | `-1[0-9]\|-[2-9][0-9]\|-100`                                                    | _50μs_           |
+| `toRegexRange(-100, 100)`   | `-[1-9]\|-?[1-9][0-9]\|-?100\|[0-9]`                                            | _42μs_           |
+| `toRegexRange(001, 100)`    | `0{0,2}[1-9]\|0?[1-9][0-9]\|100`                                                | _109μs_          |
+| `toRegexRange(001, 555)`    | `0{0,2}[1-9]\|0?[1-9][0-9]\|[1-4][0-9]{2}\|5[0-4][0-9]\|55[0-5]`                | _51μs_           |
+| `toRegexRange(0010, 1000)`  | `0{0,2}1[0-9]\|0{0,2}[2-9][0-9]\|0?[1-9][0-9]{2}\|1000`                         | _31μs_           |
+| `toRegexRange(1, 50)`       | `[1-9]\|[1-4][0-9]\|50`                                                         | _24μs_           |
+| `toRegexRange(1, 55)`       | `[1-9]\|[1-4][0-9]\|5[0-5]`                                                     | _23μs_           |
+| `toRegexRange(1, 555)`      | `[1-9]\|[1-9][0-9]\|[1-4][0-9]{2}\|5[0-4][0-9]\|55[0-5]`                        | _30μs_           |
+| `toRegexRange(1, 5555)`     | `[1-9]\|[1-9][0-9]{1,2}\|[1-4][0-9]{3}\|5[0-4][0-9]{2}\|55[0-4][0-9]\|555[0-5]` | _43μs_           |
+| `toRegexRange(111, 555)`    | `11[1-9]\|1[2-9][0-9]\|[2-4][0-9]{2}\|5[0-4][0-9]\|55[0-5]`                     | _38μs_           |
+| `toRegexRange(29, 51)`      | `29\|[34][0-9]\|5[01]`                                                          | _24μs_           |
+| `toRegexRange(31, 877)`     | `3[1-9]\|[4-9][0-9]\|[1-7][0-9]{2}\|8[0-6][0-9]\|87[0-7]`                       | _32μs_           |
+| `toRegexRange(5, 5)`        | `5`                                                                             | _8μs_            |
+| `toRegexRange(5, 6)`        | `5\|6`                                                                          | _11μs_           |
+| `toRegexRange(1, 2)`        | `1\|2`                                                                          | _6μs_            |
+| `toRegexRange(1, 5)`        | `[1-5]`                                                                         | _15μs_           |
+| `toRegexRange(1, 10)`       | `[1-9]\|10`                                                                     | _22μs_           |
+| `toRegexRange(1, 100)`      | `[1-9]\|[1-9][0-9]\|100`                                                        | _25μs_           |
+| `toRegexRange(1, 1000)`     | `[1-9]\|[1-9][0-9]{1,2}\|1000`                                                  | _31μs_           |
+| `toRegexRange(1, 10000)`    | `[1-9]\|[1-9][0-9]{1,3}\|10000`                                                 | _34μs_           |
+| `toRegexRange(1, 100000)`   | `[1-9]\|[1-9][0-9]{1,4}\|100000`                                                | _36μs_           |
+| `toRegexRange(1, 1000000)`  | `[1-9]\|[1-9][0-9]{1,5}\|1000000`                                               | _42μs_           |
+| `toRegexRange(1, 10000000)` | `[1-9]\|[1-9][0-9]{1,6}\|10000000`                                              | _42μs_           |
+
+## Heads up!
+
+**Order of arguments**
+
+When the `min` is larger than the `max`, values will be flipped to create a valid range:
+
+```js
+toRegexRange('51', '29');
+```
+
+Is effectively flipped to:
+
+```js
+toRegexRange('29', '51');
+//=> 29|[3-4][0-9]|5[0-1]
+```
+
+**Steps / increments**
+
+This library does not support steps (increments). A pr to add support would be welcome.
+
+## History
+
+### v2.0.0 - 2017-04-21
+
+**New features**
+
+Adds support for zero-padding!
+
+### v1.0.0
+
+**Optimizations**
+
+Repeating ranges are now grouped using quantifiers. rocessing time is roughly the same, but the generated regex is much smaller, which should result in faster matching.
+
+## Attribution
+
+Inspired by the python library [range-regex](https://github.com/dimka665/range-regex).
+
+## About
+
+<details>
+<summary><strong>Contributing</strong></summary>
+
+Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
+
+</details>
+
+<details>
+<summary><strong>Running Tests</strong></summary>
+
+Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
+
+```sh
+$ npm install && npm test
+```
+
+</details>
+
+<details>
+<summary><strong>Building docs</strong></summary>
+
+_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
+
+To generate the readme, run the following command:
+
+```sh
+$ npm install -g verbose/verb#dev verb-generate-readme && verb
+```
+
+</details>
+
+### Related projects
+
+You might also be interested in these projects:
+
+* [expand-range](https://www.npmjs.com/package/expand-range): Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used… [more](https://github.com/jonschlinkert/expand-range) | [homepage](https://github.com/jonschlinkert/expand-range "Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used by micromatch.")
+* [fill-range](https://www.npmjs.com/package/fill-range): Fill in a range of numbers or letters, optionally passing an increment or `step` to… [more](https://github.com/jonschlinkert/fill-range) | [homepage](https://github.com/jonschlinkert/fill-range "Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`")
+* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/micromatch/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
+* [repeat-element](https://www.npmjs.com/package/repeat-element): Create an array by repeating the given value n times. | [homepage](https://github.com/jonschlinkert/repeat-element "Create an array by repeating the given value n times.")
+* [repeat-string](https://www.npmjs.com/package/repeat-string): Repeat the given string n times. Fastest implementation for repeating a string. | [homepage](https://github.com/jonschlinkert/repeat-string "Repeat the given string n times. Fastest implementation for repeating a string.")
+
+### Contributors
+
+| **Commits** | **Contributor** |  
+| --- | --- |  
+| 63 | [jonschlinkert](https://github.com/jonschlinkert) |  
+| 3  | [doowb](https://github.com/doowb) |  
+| 2  | [realityking](https://github.com/realityking) |  
+
+### Author
+
+**Jon Schlinkert**
+
+* [GitHub Profile](https://github.com/jonschlinkert)
+* [Twitter Profile](https://twitter.com/jonschlinkert)
+* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
+
+Please consider supporting me on Patreon, or [start your own Patreon page](https://patreon.com/invite/bxpbvm)!
+
+<a href="https://www.patreon.com/jonschlinkert">
+<img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" height="50">
+</a>
+
+### License
+
+Copyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).
+Released under the [MIT License](LICENSE).
+
+***
+
+_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on April 07, 2019._
\ No newline at end of file
diff --git a/src/main/webapp/com/css/sass/node_modules/to-regex-range/index.js b/src/main/webapp/com/css/sass/node_modules/to-regex-range/index.js
new file mode 100644
index 00000000..77fbaced
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/to-regex-range/index.js
@@ -0,0 +1,288 @@
+/*!
+ * to-regex-range <https://github.com/micromatch/to-regex-range>
+ *
+ * Copyright (c) 2015-present, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+'use strict';
+
+const isNumber = require('is-number');
+
+const toRegexRange = (min, max, options) => {
+  if (isNumber(min) === false) {
+    throw new TypeError('toRegexRange: expected the first argument to be a number');
+  }
+
+  if (max === void 0 || min === max) {
+    return String(min);
+  }
+
+  if (isNumber(max) === false) {
+    throw new TypeError('toRegexRange: expected the second argument to be a number.');
+  }
+
+  let opts = { relaxZeros: true, ...options };
+  if (typeof opts.strictZeros === 'boolean') {
+    opts.relaxZeros = opts.strictZeros === false;
+  }
+
+  let relax = String(opts.relaxZeros);
+  let shorthand = String(opts.shorthand);
+  let capture = String(opts.capture);
+  let wrap = String(opts.wrap);
+  let cacheKey = min + ':' + max + '=' + relax + shorthand + capture + wrap;
+
+  if (toRegexRange.cache.hasOwnProperty(cacheKey)) {
+    return toRegexRange.cache[cacheKey].result;
+  }
+
+  let a = Math.min(min, max);
+  let b = Math.max(min, max);
+
+  if (Math.abs(a - b) === 1) {
+    let result = min + '|' + max;
+    if (opts.capture) {
+      return `(${result})`;
+    }
+    if (opts.wrap === false) {
+      return result;
+    }
+    return `(?:${result})`;
+  }
+
+  let isPadded = hasPadding(min) || hasPadding(max);
+  let state = { min, max, a, b };
+  let positives = [];
+  let negatives = [];
+
+  if (isPadded) {
+    state.isPadded = isPadded;
+    state.maxLen = String(state.max).length;
+  }
+
+  if (a < 0) {
+    let newMin = b < 0 ? Math.abs(b) : 1;
+    negatives = splitToPatterns(newMin, Math.abs(a), state, opts);
+    a = state.a = 0;
+  }
+
+  if (b >= 0) {
+    positives = splitToPatterns(a, b, state, opts);
+  }
+
+  state.negatives = negatives;
+  state.positives = positives;
+  state.result = collatePatterns(negatives, positives, opts);
+
+  if (opts.capture === true) {
+    state.result = `(${state.result})`;
+  } else if (opts.wrap !== false && (positives.length + negatives.length) > 1) {
+    state.result = `(?:${state.result})`;
+  }
+
+  toRegexRange.cache[cacheKey] = state;
+  return state.result;
+};
+
+function collatePatterns(neg, pos, options) {
+  let onlyNegative = filterPatterns(neg, pos, '-', false, options) || [];
+  let onlyPositive = filterPatterns(pos, neg, '', false, options) || [];
+  let intersected = filterPatterns(neg, pos, '-?', true, options) || [];
+  let subpatterns = onlyNegative.concat(intersected).concat(onlyPositive);
+  return subpatterns.join('|');
+}
+
+function splitToRanges(min, max) {
+  let nines = 1;
+  let zeros = 1;
+
+  let stop = countNines(min, nines);
+  let stops = new Set([max]);
+
+  while (min <= stop && stop <= max) {
+    stops.add(stop);
+    nines += 1;
+    stop = countNines(min, nines);
+  }
+
+  stop = countZeros(max + 1, zeros) - 1;
+
+  while (min < stop && stop <= max) {
+    stops.add(stop);
+    zeros += 1;
+    stop = countZeros(max + 1, zeros) - 1;
+  }
+
+  stops = [...stops];
+  stops.sort(compare);
+  return stops;
+}
+
+/**
+ * Convert a range to a regex pattern
+ * @param {Number} `start`
+ * @param {Number} `stop`
+ * @return {String}
+ */
+
+function rangeToPattern(start, stop, options) {
+  if (start === stop) {
+    return { pattern: start, count: [], digits: 0 };
+  }
+
+  let zipped = zip(start, stop);
+  let digits = zipped.length;
+  let pattern = '';
+  let count = 0;
+
+  for (let i = 0; i < digits; i++) {
+    let [startDigit, stopDigit] = zipped[i];
+
+    if (startDigit === stopDigit) {
+      pattern += startDigit;
+
+    } else if (startDigit !== '0' || stopDigit !== '9') {
+      pattern += toCharacterClass(startDigit, stopDigit, options);
+
+    } else {
+      count++;
+    }
+  }
+
+  if (count) {
+    pattern += options.shorthand === true ? '\\d' : '[0-9]';
+  }
+
+  return { pattern, count: [count], digits };
+}
+
+function splitToPatterns(min, max, tok, options) {
+  let ranges = splitToRanges(min, max);
+  let tokens = [];
+  let start = min;
+  let prev;
+
+  for (let i = 0; i < ranges.length; i++) {
+    let max = ranges[i];
+    let obj = rangeToPattern(String(start), String(max), options);
+    let zeros = '';
+
+    if (!tok.isPadded && prev && prev.pattern === obj.pattern) {
+      if (prev.count.length > 1) {
+        prev.count.pop();
+      }
+
+      prev.count.push(obj.count[0]);
+      prev.string = prev.pattern + toQuantifier(prev.count);
+      start = max + 1;
+      continue;
+    }
+
+    if (tok.isPadded) {
+      zeros = padZeros(max, tok, options);
+    }
+
+    obj.string = zeros + obj.pattern + toQuantifier(obj.count);
+    tokens.push(obj);
+    start = max + 1;
+    prev = obj;
+  }
+
+  return tokens;
+}
+
+function filterPatterns(arr, comparison, prefix, intersection, options) {
+  let result = [];
+
+  for (let ele of arr) {
+    let { string } = ele;
+
+    // only push if _both_ are negative...
+    if (!intersection && !contains(comparison, 'string', string)) {
+      result.push(prefix + string);
+    }
+
+    // or _both_ are positive
+    if (intersection && contains(comparison, 'string', string)) {
+      result.push(prefix + string);
+    }
+  }
+  return result;
+}
+
+/**
+ * Zip strings
+ */
+
+function zip(a, b) {
+  let arr = [];
+  for (let i = 0; i < a.length; i++) arr.push([a[i], b[i]]);
+  return arr;
+}
+
+function compare(a, b) {
+  return a > b ? 1 : b > a ? -1 : 0;
+}
+
+function contains(arr, key, val) {
+  return arr.some(ele => ele[key] === val);
+}
+
+function countNines(min, len) {
+  return Number(String(min).slice(0, -len) + '9'.repeat(len));
+}
+
+function countZeros(integer, zeros) {
+  return integer - (integer % Math.pow(10, zeros));
+}
+
+function toQuantifier(digits) {
+  let [start = 0, stop = ''] = digits;
+  if (stop || start > 1) {
+    return `{${start + (stop ? ',' + stop : '')}}`;
+  }
+  return '';
+}
+
+function toCharacterClass(a, b, options) {
+  return `[${a}${(b - a === 1) ? '' : '-'}${b}]`;
+}
+
+function hasPadding(str) {
+  return /^-?(0+)\d/.test(str);
+}
+
+function padZeros(value, tok, options) {
+  if (!tok.isPadded) {
+    return value;
+  }
+
+  let diff = Math.abs(tok.maxLen - String(value).length);
+  let relax = options.relaxZeros !== false;
+
+  switch (diff) {
+    case 0:
+      return '';
+    case 1:
+      return relax ? '0?' : '0';
+    case 2:
+      return relax ? '0{0,2}' : '00';
+    default: {
+      return relax ? `0{0,${diff}}` : `0{${diff}}`;
+    }
+  }
+}
+
+/**
+ * Cache
+ */
+
+toRegexRange.cache = {};
+toRegexRange.clearCache = () => (toRegexRange.cache = {});
+
+/**
+ * Expose `toRegexRange`
+ */
+
+module.exports = toRegexRange;
diff --git a/src/main/webapp/com/css/sass/node_modules/to-regex-range/package.json b/src/main/webapp/com/css/sass/node_modules/to-regex-range/package.json
new file mode 100644
index 00000000..4ef194f3
--- /dev/null
+++ b/src/main/webapp/com/css/sass/node_modules/to-regex-range/package.json
@@ -0,0 +1,88 @@
+{
+  "name": "to-regex-range",
+  "description": "Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.",
+  "version": "5.0.1",
+  "homepage": "https://github.com/micromatch/to-regex-range",
+  "author": "Jon Schlinkert (https://github.com/jonschlinkert)",
+  "contributors": [
+    "Jon Schlinkert (http://twitter.com/jonschlinkert)",
+    "Rouven Weßling (www.rouvenwessling.de)"
+  ],
+  "repository": "micromatch/to-regex-range",
+  "bugs": {
+    "url": "https://github.com/micromatch/to-regex-range/issues"
+  },
+  "license": "MIT",
+  "files": [
+    "index.js"
+  ],
+  "main": "index.js",
+  "engines": {
+    "node": ">=8.0"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "dependencies": {
+    "is-number": "^7.0.0"
+  },
+  "devDependencies": {
+    "fill-range": "^6.0.0",
+    "gulp-format-md": "^2.0.0",
+    "mocha": "^6.0.2",
+    "text-table": "^0.2.0",
+    "time-diff": "^0.3.1"
+  },
+  "keywords": [
+    "bash",
+    "date",
+    "expand",
+    "expansion",
+    "expression",
+    "glob",
+    "match",
+    "match date",
+    "match number",
+    "match numbers",
+    "match year",
+    "matches",
+    "matching",
+    "number",
+    "numbers",
+    "numerical",
+    "range",
+    "ranges",
+    "regex",
+    "regexp",
+    "regular",
+    "regular expression",
+    "sequence"
+  ],
+  "verb": {
+    "layout": "default",
+    "toc": false,
+    "tasks": [
+      "readme"
+    ],
+    "plugins": [
+      "gulp-format-md"
+    ],
+    "lint": {
+      "reflinks": true
+    },
+    "helpers": {
+      "examples": {
+        "displayName": "examples"
+      }
+    },
+    "related": {
+      "list": [
+        "expand-range",
+        "fill-range",
+        "micromatch",
+        "repeat-element",
+        "repeat-string"
+      ]
+    }
+  }
+}
diff --git a/src/main/webapp/com/css/sass/package-lock.json b/src/main/webapp/com/css/sass/package-lock.json
new file mode 100644
index 00000000..723a3a40
--- /dev/null
+++ b/src/main/webapp/com/css/sass/package-lock.json
@@ -0,0 +1,215 @@
+{
+  "name": "sass",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "sass",
+      "version": "1.0.0",
+      "dependencies": {
+        "sass": "^1.16.0"
+      }
+    },
+    "node_modules/anymatch": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
+      "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==",
+      "dependencies": {
+        "normalize-path": "^3.0.0",
+        "picomatch": "^2.0.4"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/binary-extensions": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
+      "integrity": "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw==",
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/braces": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
+      "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
+      "dependencies": {
+        "fill-range": "^7.1.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/chokidar": {
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
+      "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==",
+      "dependencies": {
+        "anymatch": "~3.1.2",
+        "braces": "~3.0.2",
+        "glob-parent": "~5.1.2",
+        "is-binary-path": "~2.1.0",
+        "is-glob": "~4.0.1",
+        "normalize-path": "~3.0.0",
+        "readdirp": "~3.6.0"
+      },
+      "engines": {
+        "node": ">= 8.10.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.2"
+      }
+    },
+    "node_modules/fill-range": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
+      "dependencies": {
+        "to-regex-range": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
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